JP4235941B2 - Bar-shaped body manufacturing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an apparatus for manufacturing a rod-shaped body, and more specifically, a thermosetting resin that has been in a fluidized state is heated and cured to continuously form a rod-shaped body as a foam that has achieved a uniform cell diameter as a whole. The present invention relates to an apparatus that can be manufactured efficiently. The apparatus according to the present invention is a mechanism for manufacturing a rod-shaped body in which a main body portion made of a foam of a thermosetting resin is covered with a jacket of a thermoplastic resin. The mechanism which peels off and manufactures a rod-shaped main-body part may be sufficient. Furthermore, the manufacturing equipment, MadeIt may be a mechanism for manufacturing a shaft-type rod-like body that is inserted through the shaft in the central longitudinal direction during the manufacturing process.
[0002]
[Prior art]
Image processing devices such as copiers and facsimiles are provided with a large number of rolls that perform latent image transfer, paper feeding, paper feeding, and the like. This roll has a structure in which, for example, a highly functional urethane material having a microcell structure is formed as a round bar having a required length, and a shaft is coaxially inserted and disposed therein. In order to manufacture the microcell urethane material constituting the roll, water and foaming material are not added to the urethane raw material, and mechanically stirred while mixing foaming gas such as dry air and nitrogen into the raw material. Thus, a method of forming a foam (so-called “mechanical floss method”) is preferably employed. The roll obtained by adopting this mechanical floss method has excellent structural characteristics such as the size of bubbles contained therein is substantially the same and is uniformly dispersed. For this reason, the roll as the final product slips with a constant pressing force on the outer peripheral surface required when feeding a sheet-like conveyed object such as paper, that is, the nip pressure (nip amount). There is an advantage that feeding can be performed smoothly.
[0003]
A conventional method for manufacturing a roll of urethane foam by the mechanical floss method will be described below in relation to the manufacturing apparatus. This roll is a cavity that substantially matches the external contour shape of the product to be obtained, as shown in FIGS. 16 to 19, with the fluid resin material M having fluidity obtained by mixing the foaming gas and the urethane material. Molding is performed by pouring into a mold 216 having 218. That is, as shown in FIG. 18, the molding die 216 is a hinge shaft supported by a pair of mold halves 222, 222 having a plurality of cavity halves 220 recessed on the dividing surface. Are placed on the transport line at required intervals. An injection hole 224 for injecting the fluid resin material M is opened at a predetermined position of the mold 216 so as to communicate with each cavity 218. Furthermore, each mold half 222 is formed with a groove 226 having a semicircular cross section at a portion along the central axis of each cavity half 220, and when the mold 216 is opened, A round bar-shaped core 228 is mounted in the groove 226.
[0004]
The mold 216 is used in the process shown in FIG. 18 to manufacture the resin roll R. That is, in the core mounting station CS provided at a predetermined position on the production line ML, the mold 216 that has arrived from the upstream side stops. Then, one mold half 222 of the mold 216 is rotated upward to open the cavity half 220. In this state, the cores 228 are respectively attached to the respective cavity halves 220 of the other mold half 222 through the semicircular grooves 226. This core 228 has the same outer diameter as the shaft concentrically inserted and disposed in the resin roll R that is the final product, and has a rod shape that is sufficiently longer than the axial length required for the roll R. It is a member. That is, the core 228 extends in alignment with the central axis of the cavity half 220 by being mounted in the groove 226.
[0005]
The mold 216 fitted with the core 228 is closed by rotating the upper mold half 222, and then is moved by one block along the production line ML to the downstream material injection station RS. Moved. Further, when another molding die 216 located on the upstream side is transported to the downstream side and arrives at the core mounting station CS, the core 228 is similarly mounted on each cavity 218. The flowable resin raw material M from the raw material injection device 232 is injected through the injection hole 224 into the molding die 216 that has arrived at the raw material injection station RS of the production line ML. The mold 216 into which the fluid resin material M is injected is heated by a tunnel heating furnace 234 provided on the downstream side of the production line ML. By this heating, the flowable resin material M is reacted and cured in the cavity 218 of the mold 216, and is molded into a roll R having an inner contour shape of the cavity 218 as an outer contour shape. The tunnel heating furnace 234 is a heating furnace having a required length provided along the production line ML, and the internal temperature is controlled and maintained at a required temperature necessary for the reaction and curing of the fluid resin material M.
[0006]
After completion of the reaction / curing in the tunnel heating furnace 234, the mold 216 is conveyed to a demolding station DS located further downstream. In this demolding station DS, the mold 216 is opened by rotating the upper mold half 222. Under this condition, the foamed resin roll R is removed from the cavity half 220 by lifting the core 228 from the groove 226. Then, by pulling the core 228 from the roll R, a hollow molded product is obtained.
[0007]
[Problems to be solved by the invention]
According to the manufacturing apparatus using the mold 216, heat is applied to the fluid resin material M inside the cavity 218, and the desired resin roll R is obtained through a reaction / curing process. However, this manufacturing apparatus has the following problems.
{Circle around (1)} Since the batch process is basically performed by opening and closing the mold 216, the resin roll R cannot be manufactured continuously, so that there is a problem that the manufacturing efficiency is low and the manufacturing cost is increased.
(2) Heating of the flowable resin material M is basically performed from the outside through the mold 216. Therefore, partial variation occurs in the reaction / curing of the fluid resin material M in the cavity 218, and the physical properties of the resin roll R to be obtained become inhomogeneous. In particular, the urethane foam, which is the material of the resin roll R, is a good heat insulator, and the part on the surface side that reacts and cures first exhibits a heat insulating action. The heat cannot be transferred efficiently. For this reason, the physical properties of the resin roll R are greatly non-uniform over the radial direction.
{Circle around (3)} In order to reduce the adverse effects of the heating and shorten the time required for the reaction / heating, the mold 216 and the core 228 are preheated. In this case, the above-mentioned heating is performed prior to injecting the flowable resin raw material M into the mold 216. The raw material M is injected into a predetermined portion of the mold 216 (see FIGS. 16 and 17). ) Is injected from. For this reason, as shown in FIG. 19, the reaction / curing starts sequentially from the site where the fluid resin raw material M in the vicinity of the injection hole 224 contacts most quickly. As a result, it is pointed out that the physical property of the obtained resin roll R varies along the injection path (flow axis direction of the resin roll R) of the fluid resin raw material M.
(4) Means for eliminating the temperature difference in the raw material M by raising the temperature of the fluid resin raw material M over a long time from a low temperature in order to avoid the problems described in the above (2) and (3). Can be considered. In this case, it takes a long time to complete the required heating. However, since it is better that the batch processing has a short cycle time, it is clear that this method is not suitable for industrial mass production.
[0008]
OBJECT OF THE INVENTION
In view of the problems inherent in the above-described prior art, the present invention has been proposed to suitably solve this problem, and the thermosetting resin in a fluidized state is heat-cured to form uniform bubbles as a whole. It is an object of the present invention to provide an apparatus capable of continuously and efficiently producing a rod-like body as a foam having a diameter. In this case, the rod-shaped body manufacturing apparatus manufactures a rod-shaped body in which a foam of a thermosetting resin is coated with a jacket of a thermoplastic resin. The body may be manufactured.
[0012]
[Means for Solving the Invention]
  Book to overcome the above-mentioned problems and achieve the intended purposeRequestThe manufacturing apparatus of the rod-shaped body according to Ming
  A die for continuously extruding a thermoplastic resin plasticized by heating to form a jacket of a rod-like body to be obtained;
  A sizing sleeve that is disposed downstream of the die and that cools and solidifies the outer shell while regulating the outer contour shape of the outer shell;
  A supply pipe connected to a supply source of a thermosetting resin in a fluidized state, with its opening facing the inside of the jacket through the die, and filling and supplying the thermosetting resin to the inside of the jacket When,
  A shaft supply device that is arranged on the upstream side of the die and that supplies a shaft to the inside of the outer casing whose outer contour shape is regulated by the sizing sleeve;
  A centering device that allows transfer to the downstream side in a state where the shaft is held in alignment with the center of the jacket inside the jacket;
  A transfer device disposed downstream of the sizing sleeve and pulling and transferring the main body of the rod-shaped body made of the thermosetting resin to the downstream side together with the outer cover.,
  The centering device is provided with a plurality of fluid blowing holes arranged on the inner circumferential surface of the sizing sleeve at a required interval in the circumferential direction and having an axis directed from the radially outer side to the shaft, and is supplied to the jacket The high pressure fluid is blown out from the fluid blowing hole toward the shaft through the jacket, thereby deforming the fluid collision site in the jacket and aligning the shaft with the central axis by the deformed portion. Keep in stateIt is characterized by that.
  In order to overcome the above-mentioned problems and achieve the intended object, a manufacturing apparatus for a rod-like body according to another invention of the present application is as follows:
  A die for continuously extruding a thermoplastic resin plasticized by heating to form a jacket of a rod-like body to be obtained;
A sizing sleeve that is disposed downstream of the die and that cools and solidifies the outer shell while regulating the outer contour shape of the outer shell;
A supply pipe connected to a supply source of a thermosetting resin in a fluidized state, with its opening facing the inside of the jacket through the die, and filling and supplying the thermosetting resin to the inside of the jacket When,
A shaft supply device that is arranged on the upstream side of the die and that supplies a shaft to the inside of the outer casing whose outer contour shape is regulated by the sizing sleeve;
A centering device that allows transfer to the downstream side in a state where the shaft is held in alignment with the center of the jacket inside the jacket;
It is arranged on the downstream side of the sizing sleeve, and comprises a transfer device that pulls and transfers the main body portion of the rod-shaped body made of the thermosetting resin to the downstream side together with the outer cover,
The centering device is a plurality of pin members which are disposed on the inner peripheral surface of the sizing sleeve at a required interval in the circumferential direction and extend from the radially outer side toward the shaft so as to be movable forward and backward. By extending the member toward the shaft through the jacket, the periphery of the contact portion of the pin member in the jacket is deformed, and the shaft is held in a state aligned with the central axis by the deformed portion. It is characterized by doing.
  In order to overcome the above-mentioned problems and achieve the intended object, a manufacturing apparatus for a rod-like body according to another invention of the present application is as follows:
  A die for continuously extruding a thermoplastic resin plasticized by heating to form a jacket of a rod-like body to be obtained;
A sizing sleeve that is disposed downstream of the die and that cools and solidifies the outer shell while regulating the outer contour shape of the outer shell;
A supply pipe connected to a supply source of a thermosetting resin in a fluidized state, with its opening facing the inside of the jacket through the die, and filling and supplying the thermosetting resin to the inside of the jacket When,
A shaft supply device that is arranged on the upstream side of the die and that supplies a shaft to the inside of the outer casing whose outer contour shape is regulated by the sizing sleeve;
Inside the outer casing, the shaft is held in alignment with the center of the outer casing to the downstream side. A centering device that allows the transfer of
It is arranged on the downstream side of the sizing sleeve, and comprises a transfer device that pulls and transfers the main body portion of the rod-shaped body made of the thermosetting resin to the downstream side together with the outer cover,
The centering device comprises:
A plurality of support rollers arranged on the upstream side of the die so as to be aligned with a central axis of a jacket formed into a cylindrical shape by the sizing sleeve, and pivotally supported in a free-wheeling state;
And a shaft support disposed inside a jacket formed into a cylindrical shape by the sizing sleeve.
[0013]
  In addition, in order to overcome the above-mentioned problems and achieve the intended object, a manufacturing apparatus for a rod-shaped body according to still another invention of the present application,
  A die for continuously extruding a thermoplastic resin plasticized by heating to form a jacket of a rod-like body to be obtained;
  A sizing sleeve that is disposed downstream of the die and that cools and solidifies the outer shell while regulating the outer contour shape of the outer shell;
  A supply pipe connected to a supply source of a thermosetting resin in a fluidized state, with its opening facing the inside of the jacket through the die, and filling and supplying the thermosetting resin to the inside of the jacket When,
  A shaft supply device that is arranged on the upstream side of the die and that supplies a shaft to the inside of the outer casing whose outer contour shape is regulated by the sizing sleeve;
  A centering device that allows transfer to the downstream side in a state where the shaft is held in alignment with the center of the jacket inside the jacket;
  A heating device disposed on the downstream side of the sizing sleeve and heat-curing the thermosetting resin in a fluid state inside the jacket to form a main body of a rod-like body to obtain the thermosetting resin;
  It is arranged on the downstream side of the heating device, and comprises a transfer device that pulls and transfers the main body of the rod-like body to the downstream side together with the outer cover.,
  The centering device is provided with a plurality of fluid blowing holes arranged on the inner circumferential surface of the sizing sleeve at a required interval in the circumferential direction and having an axis directed from the radially outer side to the shaft, and is supplied to the jacket The high pressure fluid is blown out from the fluid blowing hole toward the shaft through the jacket, thereby deforming the fluid collision site in the jacket and aligning the shaft with the central axis by the deformed portion. Keep in stateIt is characterized by that.
  In order to overcome the above-mentioned problems and achieve the intended object, a manufacturing apparatus for a rod-shaped body according to still another invention of the present application is
  A die for continuously extruding a thermoplastic resin plasticized by heating to form a jacket of a rod-like body to be obtained;
A sizing sleeve that is disposed downstream of the die and that cools and solidifies the outer shell while regulating the outer contour shape of the outer shell;
A supply pipe connected to a supply source of a thermosetting resin in a fluidized state, with its opening facing the inside of the jacket through the die, and filling and supplying the thermosetting resin to the inside of the jacket When,
A shaft supply device that is arranged on the upstream side of the die and that supplies a shaft to the inside of the outer casing whose outer contour shape is regulated by the sizing sleeve;
A centering device that allows transfer to the downstream side in a state where the shaft is held in alignment with the center of the jacket inside the jacket;
A heating device disposed on the downstream side of the sizing sleeve and heat-curing the thermosetting resin in a fluid state inside the jacket to form a main body of a rod-like body to obtain the thermosetting resin;
It is arranged on the downstream side of the heating device, and comprises a transfer device that pulls and transfers the main body of the rod-shaped body to the downstream side together with the outer cover,
The centering device is a plurality of pin members which are disposed on the inner peripheral surface of the sizing sleeve at a required interval in the circumferential direction and extend from the radially outer side toward the shaft so as to be movable forward and backward. By extending the member toward the shaft through the jacket, the periphery of the contact portion of the pin member in the jacket is deformed, and the shaft is held in a state aligned with the central axis by the deformed portion. It is characterized by doing.
  In order to overcome the above-mentioned problems and achieve the intended object, a manufacturing apparatus for a rod-like body according to another invention of the present application is as follows:
  A die for continuously extruding a thermoplastic resin plasticized by heating to form a jacket of a rod-like body to be obtained;
Disposed on the downstream side of the die, cooling and solidifying the outer shell while regulating the outer contour shape of the outer shell A sizing sleeve to perform
A supply pipe connected to a supply source of a thermosetting resin in a fluidized state, with its opening facing the inside of the jacket through the die, and filling and supplying the thermosetting resin to the inside of the jacket When,
A shaft supply device that is arranged on the upstream side of the die and that supplies a shaft to the inside of the outer casing whose outer contour shape is regulated by the sizing sleeve;
A centering device that allows transfer to the downstream side in a state where the shaft is held in alignment with the center of the jacket inside the jacket;
A heating device disposed on the downstream side of the sizing sleeve and heat-curing the thermosetting resin in a fluid state inside the jacket to form a main body of a rod-like body to obtain the thermosetting resin;
It is arranged on the downstream side of the heating device, and comprises a transfer device that pulls and transfers the main body of the rod-shaped body to the downstream side together with the outer cover,
The centering device comprises:
A plurality of support rollers arranged on the upstream side of the die so as to be aligned with a central axis of a jacket formed into a cylindrical shape by the sizing sleeve, and pivotally supported in a free-wheeling state;
And a shaft support disposed inside a jacket formed into a cylindrical shape by the sizing sleeve.
[0014]
The devices according to these inventions continuously produce a main body having a rod made of a thermosetting resin foam and having a shaft at the center thereof. The main body portion may be manufactured in the form of a rod-shaped body covered with a thermoplastic resin jacket, or the thermoplastic resin jacket may be peeled off from the rod-shaped body to manufacture only the main body portion.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
  Next, an apparatus for manufacturing a rod-like body according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment..
[0016]
The rod-shaped body manufactured by this apparatus is composed of a main body part made of a foam of a cured thermosetting resin, and a jacket of a thermoplastic resin covering the main body part. And used as a main body or a rod-like body having a jacket. Further, the cured thermosetting resin main body may be a foam by a mechanical floss method or a foam by a chemical foaming method, as will be described later, and mainly as various rolls for office equipment and the like. Although used, the application is not limited to this. The foam that forms the main body of the rod-shaped body may have either an open-cell structure or a closed-cell structure, but is manufactured without using a split mold as in the prior art. This is a so-called seamless foam having no seam (seam) caused by the mold-matching surface. Further, the cross section of the rod-shaped body or the main body portion from which the jacket is peeled off from the rod-shaped body is generally circular. However, the jacket can be formed into other elliptical or polygonal shapes by a sizing sleeve described later. Is.
[0017]
[Reference example]
  1 to 5Reference example1 shows an embodiment of a manufacturing apparatus for a rod-shaped body, and FIG. 1 is a schematic view showing the overall configuration of the manufacturing apparatus, to which an apparatus for stripping the outer sheath of a thermoplastic resin from a rod-shaped body is added. Is a similar schematic overall view, but does not include a device for stripping the jacket. AlsoReference exampleThen, the shaft is not provided at the center of the manufactured rod-shaped body or the main body portion from which the jacket is peeled off, and the shaft is provided in this respect in advance.FruitThis is different from the embodiment (described later).
[0018]
1 and 2, reference numeral A is a thermoplastic and thermosetting resin supply mechanism, reference numeral B is a heating area of the rod-shaped body, reference numeral C is a pulling mechanism of the rod-shaped body, and reference numeral D is a winding mechanism of the jacket (however, (Not shown in FIG. 2), a symbol E indicates a bar-shaped body cutting mechanism. 3 shows the thermoplastic and thermosetting resin supply mechanism A of FIG. 1, FIG. 4 shows the heating region B of the rod-shaped body of FIG. 1, and FIG. 5 shows the rod-shaped body tension mechanism of FIG. C and outer winding mechanism D are shown.
[0019]
[About overall configuration]
(1) In the overall schematic diagram of FIG. 1, in the resin supply mechanism A located on the upstream side, the thermoplastic resin is continuously formed as a cylindrical outer casing, and the thermosetting resin in a fluid state in the outer casing. (Foaming resin) is filled and supplied. The outer shell formed into a cylindrical shape is cooled and solidified here, and is defined as an outer contour shape that substantially matches the outer contour shape of the rod-shaped body to be obtained.
(2) Since the thermosetting resin supplied in the cylindrical envelope is still in a fluid state, the thermosetting resin fed to the downstream side with the envelope is heated in the heating region B. Heated to cure. As the heating means in the heating region B, as will be described later, the induction heating principle, the dielectric heating principle, and other radiation heating principles are used alone or in an appropriate combination.
(3) A pulling mechanism C is provided on the downstream side of the heating region B, and pulls a rod-shaped body having a body portion of a cured thermosetting resin covered with an outer cover and continuously transfers it downstream.
(4) A jacket winding mechanism D is provided on the downstream side of the tension mechanism C, and the casing is peeled off in the longitudinal direction from the rod-shaped body and wound, so that the content of the thermosetting resin after curing can be obtained. Expose the main body. 2 is not provided with a winding mechanism D for a jacket, and therefore, a rod-like body formed by covering the main body portion of the foam with the jacket is manufactured in this line. .
(5) The body portion of the thermosetting resin exposed by peeling off the jacket is cut into a predetermined length by the fixed cutting mechanism E. However, since the outer cover is not peeled off in the overall configuration of FIG. 2, the object to be cut by the regular cutting mechanism E is the rod-like body itself in which the main body of the foam is covered with the outer cover. In addition, according to the desires of the manufacturer and the user, both the main body part from which the outer cover has been peeled off from the rod-like body and the rod-like body from which the outer cover has not been peeled off are cut by the regular cutting mechanism E. In some cases, a required length is wound on a large-diameter drum or the like on the downstream side, and then cut and separated.
[0020]
[Supply Mechanism A for Thermoplastic and Thermosetting Resins]
FIG. 3 is a schematic cross-sectional view of a mechanism A that supplies the thermoplastic resin 10 to be molded into the cylindrical outer cover 12 and supplies the thermosetting resin 14 in a fluid state to the inside of the outer cover 12. . That is, the resin supply mechanism A includes a crosshead die 16 that continuously extrudes the plasticized thermoplastic resin 10 as a cylindrical envelope 12, and the outer envelope 12 while regulating the outer contour shape of the cylindrical envelope 12. Is basically composed of a sizing sleeve 18 that cools and solidifies and a supply pipe 20 that fills and supplies the thermosetting resin 14 into the jacket 12.
[0021]
The thermoplastic resin 10 such as pellets stored in the hopper 22 is supplied to a cylinder 28 having an electric heater 24 wound around the outer periphery thereof and coaxially provided with an auger 26 for stirring and extruding therein. It is melted and becomes a plasticized state. The outlet of the cylinder 28 is connected to the cross head die 16 through a cross head 30, and the thermoplastic resin 10 in a plasticized state in the cylinder 28 is agitated by an auger 26 rotated by a motor 32. While being pushed, the crosshead die 16 is extruded in a conical shape in the horizontal direction. The crosshead die 16 includes an outer die 16a and a core die 16b, and the conical cavity 34 defined between the two dies 16a and 16b has its opening portion on the right side (downstream side) in FIG. Oriented. The opening of the cavity 34 has a large contour shape (for example, a ring shape) similar to the cross-sectional contour shape of the rod-shaped body to be obtained. The crosshead die 16 is appropriately provided with a heater for adjusting the temperature of the plasticized state of the thermoplastic resin 10 as necessary. The thermoplastic resin 10 becomes a rod-shaped outer cover 12 as will be described later, and this outer cover 12 is peeled off in a subsequent process or remains without being peeled off depending on the application. Therefore, an appropriate thermoplastic resin such as polyamide is preferably used.
[0022]
A sizing sleeve 18 is horizontally disposed on the downstream side of the crosshead die 16, that is, on the right side of FIG. 3, and the central axis thereof is substantially aligned with the central axis of the crosshead die 16. The sizing sleeve 18 restricts the outer contour shape by converging the thermoplastic resin 10 extruded in a truncated cone shape from the ring-shaped opening of the crosshead die 16 so as to become a cylindrical outer cover 12. The outer shell 12 formed in the above is cooled and solidified. For example, the sizing sleeve 18 is configured in a donut shape, and has a cylindrical hole 36 (that is, an inner surface of the sleeve) that penetrates in the axial direction with a required diameter at the center thereof, and a jacket 38 that forms an annular space inside the sleeve body. Is defined. A plurality (three in the illustrated example) of the sizing sleeve 18 are arranged with the central axis aligned, and the inner peripheral surface of each cylindrical hole 36 in a row regulates the outer contour shape of the cylindrical jacket 12. To do. Accordingly, the inner contour shape of the cylindrical hole 36 is set so as to substantially match the outer contour shape of the rod-shaped body to be obtained.
[0023]
The jacket 38 of the sizing sleeve 18 functions as a chamber in which cooling water is circulated and supplied with negative pressure as described below. For example, in FIG. 3, the jackets 38 of the sizing sleeves 18 located in the first row and the third row are connected to a cooling medium supply unit such as water (not shown), and the cooling medium is supplied from the supply unit to the jacket 38. Circulation supply is made. Then, the thermoplastic resin 10 (plastic state) which is converged and supplied in a conical shape from the crosshead die 16 and formed into a cylindrical shape by the cylindrical hole 36 of the sizing sleeve 18 is cooled and solidified by the respective jackets 38. The means for cooling and solidifying the thermoplastic resin 10 may be an air cooling type in which a large number of heat radiation fins are formed on the outer periphery of the sizing sleeve 18 and the fins are forcibly cooled by a fan.
[0024]
In the second row, that is, in the middle, the jacket 38 of the sizing sleeve 18 is provided with pores 40 communicating with the cylindrical hole 36 in the circumferential direction at a required interval, and the jacket 38 is a negative pressure source (not shown). It is connected to the. Accordingly, if the jacket 38 is held at a negative pressure by vacuum suction from the negative pressure source, the cylindrical outer cover 12 is sucked through the pores 40 and brought into close contact with the inner surface of the cylindrical hole 36. Can do. However, since the tubular outer cover 12 and the thermosetting resin 14 (described later) supplied to the inner side of the outer cover 12 are fed downstream by a pulling mechanism C which will be described later, the pore 40 The degree of negative pressure suction through the cover 12 is set to a strength that does not hinder the feeding of the jacket 12.
[0025]
In FIG. 3, the crosshead die 16 is filled and supplied with the thermosetting resin 14 in a fluid state into the cylindrical envelope 12 with the axial center substantially coinciding with the central axis of the die 16. A supply pipe 20 is disposed. That is, the supply pipe 20 has one end connected to the supply tank 42 storing the thermosetting resin 14 in a fluid state, and the other end passes through the crosshead die 16 and is inside the outer cover 12. I ’m here. For example, a slurry pump 44 is provided between the supply tank 42 and the supply pipe 20 to facilitate the supply of the thermosetting resin 14 in a fluid state. The thermosetting resin 14 is, for example, a resin foam obtained by subjecting urethane to a known mechanical floss method, but may be a resin foam obtained by a chemical foaming method as described above. .
[0026]
The thermosetting resin 14 supplied to the inside of the cylindrical jacket 12 through the supply pipe 20 is filled in the axial direction inside the jacket 12, and this jacket 12 is in the sizing sleeve 18. It is regulated by the inner peripheral surface of the cylindrical hole 36 and is cooled and solidified after passing through the sizing sleeve 18. Therefore, the thermosetting resin 14 after supply does not bulge the cylindrical outer casing 12 radially outward, and as a result, the outer casing 12 covers the thermosetting resin 14 in a fluid state. However, at the time shown in FIG. 3, the thermosetting resin 14 supplied to the inside of the cylindrical jacket 12 is still in a fluid state, so that the thermosetting resin 14 is heated in the heating region B shown in FIG. To allow the thermosetting to proceed. In addition, since the thermosetting resin 14 is thermoset as described later, in this specification, a thermosetting rod-like portion of the thermosetting resin 14 covered with the outer cover 12 is referred to as a main body portion 46, and the main body The rod-shaped portion composed of the portion 46 and the jacket 12 is generally referred to as a rod-shaped body 48.
[0027]
[Regarding the heating area B of the rod-shaped body]
FIG. 4 shows a heating region B in which the thermosetting resin 14 having fluidity filled inside the cylindrical casing 12 is heated and cured. That is, as shown in FIG. 1, the heating region B is basically composed of a heating device 50 that is horizontally arranged with its center axis aligned on the downstream side of the sizing sleeve 18, and is in a fluid state by this heating device 50. The thermosetting resin 14 is cured by heating, and the thermosetting resin 14 is used as a main body portion 46 of a foam-like foam.
[0028]
The heating device 50 heats and cures the fluid thermosetting resin 14 filled and supplied to the inside of the cylindrical outer cover 12 in the course of feeding downstream with the outer cover 12. Therefore, if it is suitable for such a purpose, various proposals such as induction heating, dielectric heating, and radiation heating are made as the heating principle. That is, FIG. 4 is a schematic cross-sectional view showing a state in which the induction heating device 52 and the dielectric heating device 58 are arranged in series in that order as an example, and the details of each device are as described below. is there. In addition, the apparatus based on these various heating principles may be used alone or in a plurality of units as necessary, and the arrangement order may be reversed.
[0029]
(Induction heating device)
In FIG. 4, reference numeral 52 denotes an apparatus for heat-curing the thermosetting resin 14 in a fluid state based on the principle of induction heating. The induction heating device 52 includes a pipe 54 made of a magnetic material such as an iron-based metal, which passes through a cylindrical casing 12 filled and supplied with a thermosetting resin 14 in a fluid state, and the pipe. The induction coil 56 is wound around the outer circumference of the required number of times. The induction coil 56 is connected to a high-frequency current supply source (not shown), and when a required high-frequency current flows through the induction coil 56, an induction current is generated in the magnetic material pipe 54 around which the coil 56 is wound. . For this reason, the pipe 54 is self-heated to be heated to a predetermined temperature, and while the cylindrical jacket 12 passing through the inside of the pipe 54 is fed downstream, the thermosetting property in the jacket 12 is increased. The resin 14 is heated and cured.
[0030]
That is, as the thermosetting resin 14 filled in the cylindrical jacket 12 passes through the inside of the induction-heated pipe 54, the center axis (inward in the radial direction) extends from the outside of the resin 14 covered with the jacket 12. ), The curing gradually proceeds. As described above, the jacket 12 is obtained by cooling and solidifying the thermoplastic resin 10 in the sizing sleeve 18. Therefore, when the jacket 12 passes through the induction-heated pipe 54, the jacket 12 is heated. Of course, the temperature rise of the pipe is suppressed so as not to be damaged.
[0031]
(Dielectric heating device)
In FIG. 4, reference numeral 58 denotes an apparatus for heat-curing the thermosetting resin 14 in a fluid state by the principle of dielectric heating. This dielectric heating device 58 has a pipe 60 made of a non-metal such as vinyl chloride, which passes through the jacket 12 filled with the thermosetting resin 14 in a fluid state, and an outer periphery of the pipe 60. It is comprised from the electrode 62 arrange | positioned by number. The electrode 62 is connected to a high-frequency supply source such as a magnetron (not shown), and generates, for example, a very high frequency wave (microwave) of 3,000 MHz from the electrode. This ultra high frequency wave passes through the pipe 60 made of a non-metallic material and is irradiated to the thermosetting resin 14 covered with the outer cover 12. That is, while the thermosetting resin 14 in a fluidized state is fed downstream along with the cylindrical jacket 12 that passes through the inside of the pipe 60, so-called molecular vibration is generated to generate frictional heat. Cured.
[0032]
According to this dielectric heating device 58, when the thermosetting resin 14 filled in the cylindrical jacket 12 passes through the inside of the pipe 60, the ultra-short wave irradiated to the thermosetting resin 14 is generated in the entire resin. Is uniformly vibrated and gradually cures. Even when the thermosetting resin 14 is dielectrically heated by the dielectric heating device 58 as described above, adjustment control for the dielectric heating device 58 is performed so that the outer cover 12 is not excessively dielectrically heated and thermally damaged. Has been made.
[0033]
(About curing device)
In FIG. 4, reference numeral 64 indicates a curing device for allowing the thermosetting resin 14 after heat-curing to continue to pass through an environment with a small loss of heat energy and to proceed with the curing more slowly. The curing device 64 constitutes a heat insulating region in which a sufficient heat insulating coating 68 is applied to the outside of a pipe 66 made of, for example, vinyl chloride. That is, with respect to the thermosetting resin 14 immediately after being cured by passing through the heating devices 52 and 58 provided on the upstream side, the curing device 64 prevents sudden heat loss from the thermosetting resin 14. The dispersed state of the bubbles in the main body 46 (made of a thermosetting resin foam) can be made uniform and stable. The curing device 64 in the illustrated example has a configuration in which sufficient heat insulation processing is performed. However, in addition to the heat insulation structure strictly applied in this way, a positive heating means such as a required electric heater may be provided.
[0034]
In FIG. 4, the induction heating device 52, the dielectric heating device 58, and the curing device 64 are arranged in this order from the upstream side to the downstream side, but it is needless to say that this arrangement relationship does not limit the present invention. For example, the curing device 64 is not an indispensable constituent member, and the induction heating device 52 and the dielectric heating device 58 may be selectively provided in only one unit. Further, the arrangement order is provided with the dielectric heating device 58 on the upstream side. An induction heating device 52 may be provided on the downstream side.
[0035]
(About radiation heating device)
Although not shown in FIG. 4, the heating device includes a pipe made of a non-metallic material having high heat resistance that passes through the jacket 12 filled with the thermosetting resin 14 in a fluid state, and an outer periphery of the pipe. A radiant heating device may be employed in which the thermosetting resin 14 is cured to form the main body portion 46 by being configured by a wound electric heater and conducting radiant heating by energizing the heater.
[0036]
[About the pulling mechanism C of the rod-shaped body]
FIG. 5 shows a rod-shaped body 48 that has passed through the heating region B (that is, a rod-shaped main body 46 in which the thermosetting resin 14 is cured and the outer jacket 12 covering the main body 46) is pulled and transferred to the downstream side. 2 is a schematic perspective view showing a body pulling mechanism C. FIG. That is, the pulling mechanism C is composed of a pair of belt conveyors 70 and 70 that face each other across the feeding locus of the long rod-like body 48, and each belt conveyor 70 is pulleys 72 and 72 separated in the longitudinal direction by a required interval. It is wound around. The gap between the belt conveyors 70 and 70 facing each other is set to be slightly smaller than the cross-sectional dimension of the rod-shaped body 48 to be fed, and the at least one pulley 72 in each conveyor 70 is driven to rotate. The rod-shaped body 48 can be forcibly pulled and transferred to the downstream side while being pressed from both sides. Accordingly, the pulling mechanism C according to the illustrated example is based on a so-called sandwich conveyor, and by this mechanism C, the resin supply mechanism A located on the most upstream side feeds the jacket 12 downstream and in the heating region B. Feeding to the downstream side of the rod-shaped body 48 is achieved.
[0037]
In FIG. 5, a jacket winding mechanism D that winds the jacket 12 on the downstream side of the tension mechanism C is provided. The take-up mechanism D is configured to remove the outer cover 12 from the rod-shaped body 48 (the main body 46 and the outer cover 12 of the foam obtained by curing the thermosetting resin 14). The main body 46 as a foam forming the contents of the rod-shaped body 48 is exposed entirely. When stripping the outer cover 12 from the rod-shaped body 48, a knife (not shown) is provided immediately downstream of the pulling mechanism C, and the knife is applied to the lower surface of the outer cover 12 and pierced. With the transfer of the rod-like body 48, the outer cover 12 is cut in the longitudinal direction. However, the winding of the jacket 12 is not necessarily a requirement. Therefore, as shown in the overall configuration of FIG. 2, if the winding mechanism D for the outer cover 12 is not provided, a rod-shaped body 48 in which the main body portion 46 forming the foam is covered with the outer cover 12 is manufactured continuously. become.
[0038]
(Regarding the rod-shaped cutting mechanism E)
1 and 2, a cutting device 76 is disposed on the downstream side of the transfer device 70 composed of the sandwich conveyor. That is, the cutting device 76 is composed of a pair of upper and lower cutters 78, 78, and both cutters 78, 78 are largely waiting to be separated from each other at the cutting standby position as the original position, but the main body portion 46 (rod-like body 48) is downstream. In synchronism with the feeding to the side, the main body 46 is moved by the required distance toward the downstream side while being close to each other, and then the main body portion 46 is separated from each other, and then moved to the upstream side by the required distance. A so-called block motion for returning to the cutting standby position is performed. In FIG. 1, the cutting device 76 cuts the main body 46 from which the outer cover 12 has been peeled off, and in FIG. Made. The main body 46 or the rod-shaped body 48 cut by a predetermined length is transferred to the next step (not shown) and finished into a roll or the like for office equipment.
[0039]
[FruitForm]
  6 to 15 are,rodFIG. 6 is a schematic view showing the overall configuration of the manufacturing apparatus, which is provided with an outer stripping device, and FIG. 7 is a similar schematic overall view. However, it does not have a device for stripping the jacket. MaFruitIn the embodiment, the shaft 80 is provided at the center of the rod-shaped body to be manufactured or the main body portion obtained by stripping the jacket from the rod-shaped body. The resin supply mechanism A, the heating area B of the rod-shaped body, the pulling mechanism C of the rod-shaped body, the winding mechanism D of the jacket, and the constant-length cutting mechanism E of the rod-shaped body described above are basicallyActuallyThe same applies to the embodiments. Therefore, description of each mechanism is abbreviate | omitted and only the difference which arises with supply of the shaft 80 is demonstrated.
[0040]
(About shaft feeder)
In the present embodiment, the shaft 80 is inserted in advance in the center of the rod-shaped body 48 to be manufactured. Therefore, an office roll with a shaft, for example, can be easily and mass produced through a slight finishing process. That is, in FIGS. 6, 7, and 8, a shaft supply device 82 is disposed on the upstream side of the crosshead die 16, and a shaft 80 having a required length is intermittently dropped from the shaft supply device 82. It has become. The shaft 80 is sequentially supplied to the inside of the cylindrical casing 12 whose outer contour shape is regulated by the sizing sleeve 18 with a center axis lined up at predetermined intervals. In order to supply the shaft 80 to the inside of the cylindrical jacket 12 with its center axis aligned, for example, a pusher (not shown) that moves forward and backward at a required interval is used.
[0041]
The crosshead die 16 is provided with an opening 84 having a required diameter at the center of the core 16b, and the supply pipe 20 for supplying the thermosetting resin 14 described above to the opening 84 has a central axis extending upward. It is inserted in a deviated form. The internal opening dimension of the opening 84 is set to a dimension that allows a shaft 80 having a centering member described later to be inserted without interfering with the supply pipe 20. In FIG. 8, reference numeral 86 denotes a horizontal support plate for horizontally supporting a centering member (described later) in the shaft 80.
[0042]
  (About centering device)
  ThisThe fruitIn the embodiment, the shaft 80 is fed into the thermosetting resin 14 which is filled and supplied to the outer casing 12 having a cylindrical shape and is in a fluid state. Since this shaft 80 functions almost as a rotation axis in the roll of office equipment as a final product, it is necessary that the shaft 80 be inserted at an axis line aligned with the center of the rod-like body 48. Therefore, in the present embodiment, various centering devices 88 are provided so as to be supplied in a so-called “centering state” in which the center axis of the shaft 80 is aligned with the center axis of the thermosetting resin 14 in the cylindrical jacket 12. Has been proposed.
[0043]
(First embodiment of centering device)
FIGS. 8 and 9 show a first embodiment of the centering device 88, in which circular support members 90 are detachably fitted to both ends of the shaft 80. FIG. As shown in FIG. 9A, the support member 90 is set so that its outer contour shape substantially matches the inner contour shape of the jacket 12. In this embodiment, the support member 90 has a circular outer contour shape, and a central hole 90a into which the shaft 80 is detachably inserted is formed in the central portion. Further, a through opening 90b is formed inside the support member 90 and at a portion other than the drilled portion of the center hole 90a. Accordingly, the fluidized thermosetting resin 14 supplied to the inside of the cylindrical jacket 12 passes through the through opening 90b of the support member 90 as shown in FIG. Supplied downstream along the road. FIG. 9B shows a case where, for example, a U-shaped notch 90 c is recessed in the periphery of the disk-shaped member 90, and the shaft 80 is supplied toward the crosshead die 16. Since the supply pipe 20 is positioned in the notch 90c, the supply pipe 20 and the support member 90 do not interfere with each other.
[0044]
According to this centering device, circular support members 90, 90 are extrapolated to both ends of a shaft 80 having a required length, and in this state, the shaft 80 is intermittently supported by the shaft supply device 82 in the horizontal support. Supplied toward the plate 86. The shaft 80 arriving at the horizontal support plate 86 is pushed into the opening 84 of the crosshead die 16 shown in FIG. 8 by pushing means such as a pusher (not shown), and converged into a truncated cone shape by the crosshead die 16. It is supplied to the inside of the cylindrical outer cover 12. At this time, since the thermosetting resin 14 having fluidity is filled from the supply pipe 20 inserted into the cylindrical jacket 12, the support member 90, 90 is centered with respect to the jacket 12. The shaft 80 is transferred to the downstream side together with the thermosetting resin 14. Since each support member 90 has a through opening 90b, the thermosetting resin 14 uniformly flows and fills the inside of the cylindrical jacket 12 through the through opening 90b. Each support member 90 is removed from the shaft 80 automatically or manually in the final step.
[0045]
(Second embodiment of the centering device)
FIG. 10 shows a second embodiment of the centering device 88. The centering device 88 is formed in the inner peripheral surface of the sizing sleeve 18 at a required interval in the circumferential direction, and its axis is radially outward from the shaft 80. Are formed of a plurality of fluid outlet holes 92 oriented in the direction. That is, in FIG. 10, three sizing sleeves 18 are provided in the direction of the central axis, but a jacket 38 of the sizing sleeve 18 located in the middle is provided with a supply source of high-pressure fluid such as high-pressure air (not shown). ) Is connected to the pressure chamber. Then, for example, high-pressure air is instantaneously blown out from the jacket 38 functioning as a pressure chamber toward the shaft 80 through the fluid blow-out hole 92, so that the collision portion of the high-pressure air in the cylindrical jacket 12 is inward. To deform. As a result, the cylindrical jacket 12 is deformed and hardened inward in the radial direction as shown in FIG. 11, and the shaft 80 can be held in an aligned state with the central axis by the deformed portion. .
[0046]
(Third embodiment of centering device)
FIG. 12 shows a third embodiment of the centering device 88, which is arranged on the inner peripheral surface of the sizing sleeve 18 at a required interval in the circumferential direction, and is directed from the radially outer side toward the shaft 80. It is composed of a plurality of pin members 94 that extend freely. That is, in FIG. 12, three sizing sleeves 18 are provided in the direction of the central axis, but the jacket 38 of the sizing sleeve 18 located in the middle is connected to a fluid supply source (not shown) such as air pressure. The pin member 94 is disposed in the cylinder, and the pin member 94 can be extended and retracted with respect to the shaft 80 by supplying / stopping fluid pressure to the cylinder. Yes. Then, by extending the pin member 94 inward in the radial direction, the vicinity of the contact part of the pin member 94 in the cylindrical jacket 12 is deformed inward. As a result, the cylindrical jacket 12 is deformed inward in the radial direction as shown in FIG. 13, and the deformable portion can hold the shaft 80 in a state aligned with the central axis.
[0047]
(Fourth embodiment of centering device)
FIG. 14 is a schematic cross-sectional view of a centering device according to a fourth embodiment for holding the shaft 80 in a centering state when a long shaft 80 is continuously supplied to the inside of the cylindrical jacket 12. FIG. In FIG. 14, a required number of support rollers 96 aligned with the central axis of the cylindrical jacket 12 are pivotally supported in a free-running state at a required position on the left side, that is, upstream of the crosshead die 16. Further, if necessary, a shaft support 98 is also provided inside the cylindrical jacket 12, and the shaft 80 is centered by the support roller 96 and the shaft support 98 so as to be fed downstream. ing. According to the embodiment of FIG. 14, a long shaft 80 is inserted through the obtained rod-shaped body 48, but the rod-shaped body 48 is cut to a required length on the downstream side.
[0048]
[Regarding the heating area B of the rod-shaped body]
  FIG. 15 shows a region B in which the rod-shaped body 48 having the shaft 80 is heated,Reference exampleThe same heating device 50 as that described above is used. That is, the induction heating device 52, the dielectric heating device 58, or alternatively the radiant heating device described above is appropriately arranged in series along the feeding direction of the rod-shaped body 48 (the main body portion 46 covered with the jacket 12). In terms of providing a pattern,Reference exampleIt is the same as the heating area B. In addition, the curing device 64 described above is also provided in the feeding path of the rod-shaped body 48 as appropriate. However,, RealIn the embodiment, since the rod-like body 48 includes the shaft 80, when the shaft 80 is made of a magnetic material such as an iron-based metal, a heating device based on the induction heating principle described below is preferably used. The
[0049]
In the rod-shaped body heating region B of FIG. 15, an induction heating device 52, a dielectric heating device 58, and a curing device 64 are disposed from the upstream side toward the downstream side. Further, another induction heating device 100 having a slightly different configuration from that of the induction heating device 52 is disposed on the upstream side of the induction heating device 52 described above. That is, the induction heating apparatus 100 includes a pipe 102 made of a non-magnetic material such as vinyl chloride that passes through the cylindrical jacket 12 (filled with the thermosetting resin 14), and a pipe made of this non-magnetic material. An induction coil 104 wound around the outer periphery of 102. The induction coil 104 is connected to a high-frequency current supply source (not shown). When the induction coil 104 is energized in the process of feeding the magnetic material shaft 80 together with the thermosetting resin 14 through the pipe 102 made of the non-magnetic material, an induction current is generated in the shaft 80. The For this reason, the shaft 80 is self-heated and heated up to a predetermined temperature, the thermosetting resin 14 surrounding the shaft 80 is heated, and curing from the center side of the rod-shaped body 48 proceeds.
[0050]
Thus, the rod-like body 48 heated from the center side and starting to harden is sent to the induction heating device 52 further downstream, where the hardening of the outer circumference side of the rod-like body 48 is advanced. In the embodiment of FIG. 15, the other induction heating device 100 is also arranged on the downstream side of the induction heating device 52. Since the temperature in the vicinity of the center of the rod-shaped body 48 may drop while passing through the induction heating device 52, the downstream induction heating device 100 allows the shaft to pass through another induction heating device 100 again. 80 reheating is performed, thereby achieving uniform heating throughout the rod 48. Further, in the example of FIG. 15, a dielectric heating device 58 and a curing device 64 are further provided on the downstream side, and these devices also greatly contribute to securing a uniform bubble distribution in the rod-shaped body 48. In addition, it is not necessarily a requirement to install the induction heating device 100 on the downstream side, and it is sufficient if it is provided according to the actual operation status.
[0051]
  As shown in FIG. 6 or FIG. 7, the rod-shaped body 48 after passing through the heating region B is stripped of the outer cover 12 or has a predetermined length or any length without removing the outer cover 12. Cut to length. These steps are the firstReference example1 is exactly the same as that described with reference to FIG. 1 and FIG. However, since the rod-shaped body 48 includes the shaft 80, the rod-shaped body 48 is finished as a roll with a shaft in a later process (not shown).
[0052]
In the present embodiment, a thermosetting resin 14 mechanically foamed by a so-called mechanical floss method is used, and a foam rod-like body 48 having bubbles (cells) with fine and uniform bubble diameters in the longitudinal direction. Although the rod-like body 48 having a circular cross section and optimal as an office equipment roll is assumed, the present invention is not limited to this. For example, a foam rod 48 having an elliptical cross section or a polygonal shape can be manufactured. Moreover, it is not a requirement to peel off the outer cover 12 from the rod-shaped body 48 to expose the main body 46 that forms the contents, and depending on the application, it may be used as the rod-shaped body 48 with the covering with the outer cover 12 provided. Also good. Furthermore, the rod-shaped body 48 may or may not have the shaft 80, and may be a fixed-size object or an arbitrary dimension.
[0053]
【The invention's effect】
  As described above, the rod-shaped body manufacturing apparatus according to the present invention has the following beneficial effects.
(1) A thermosetting resin in a fluidized state can be heat-cured to continuously and efficiently produce a rod-like body as a foam that has achieved a uniform cell diameter as a whole.
(2)ShiA rod-shaped body inserted through the shaft in the longitudinal direction of the centerThe,LowCan be manufactured at cost.
[Brief description of the drawings]
[Figure 1]Reference exampleIt is the schematic which shows the whole structure of a rod-shaped body manufacturing apparatus, Comprising: The apparatus which strips off the jacket of a thermoplastic resin from a rod-shaped body is added.
[Figure 2]Reference exampleIt is the schematic which shows the whole structure of a rod-shaped body manufacturing apparatus, Comprising: The apparatus which strips off the jacket of a thermoplastic resin from a rod-shaped body is not provided.
FIG. 3 is a schematic cross-sectional view of a mechanism for supplying a thermoplastic resin in a thermoplastic state and a thermosetting resin in a fluid state.
FIG. 4 is a schematic cross-sectional view showing a state in which an induction heating device and a dielectric heating device are arranged in series as an example.
FIG. 5 is a schematic perspective view of a rod-shaped body pulling mechanism that pulls a rod-shaped body (a main body portion and an outer casing that form a content) that has passed through a heating region and transfers them to the downstream side.
FIG. 6 is suitable for the present invention.FruitIt is the schematic which shows the whole structure of the rod-shaped object manufacturing apparatus which concerns on embodiment, Comprising: The apparatus which peels the jacket of a thermoplastic resin from a rod-shaped object is added.
[Fig. 7]FruitIt is the schematic which shows the whole structure of the rod-shaped object manufacturing apparatus which concerns on embodiment, Comprising: The apparatus which peels off the jacket of a thermoplastic resin from a rod-shaped object is not provided.
FIG. 8 is a schematic sectional view of a mechanism for supplying a thermoplastic resin in a thermoplastic state and a thermosetting resin in a fluid state, and a shaft is supplied to the center.
FIG. 9 is a plan view of a support member that functions as a centering device.
FIG. 10 is a schematic cross-sectional view showing a second embodiment of the centering device.
11 is a cross-sectional view of a rod-like body having a shaft held by the centering device shown in FIG.
FIG. 12 is a schematic cross-sectional view showing a third embodiment of the centering device.
13 is a cross-sectional view of a rod-like body having a shaft held by the centering device shown in FIG.
FIG. 14 is a schematic cross-sectional view showing a fourth embodiment of the centering device.
FIG. 15 is a schematic sectional view of a heating region used in the second embodiment.
FIG. 16 is a plan view showing a roll molding die used for foaming a fluid resin raw material in the production of a resin roll according to the prior art.
17 is a cross-sectional view showing an internal state when a resin roll is formed on the roll forming mold shown in FIG. 16. FIG.
FIG. 18 is a configuration diagram schematically showing a resin roll manufacturing apparatus and process using a roll molding die in manufacturing a resin roll according to a conventional technique.
FIG. 19 is an explanatory view showing the state of the raw material when a fluid resin raw material is injected into the roll molding die shown in FIG.

Claims (18)

A die (16) for continuously extruding the thermoplastic resin (10) plasticized by heating to the outer cover (12) of the rod-shaped body (48) to be obtained;
A sizing sleeve (18) disposed on the downstream side of the die (16), for cooling and solidifying the outer cover (12) while regulating the outer contour shape of the outer cover (12);
Connected to the supply source (42) of the thermosetting resin (14) in a fluidized state, the opening faces the inside of the jacket (12) through the die (16), and the thermosetting resin A supply pipe (20) for filling and supplying (14) to the inside of the jacket (12);
A shaft supply device (82) for supplying a shaft (80) to the inside of the outer cover (12) , which is arranged on the upstream side of the die (16) and whose outer contour shape is regulated by the sizing sleeve (18) ;
Within said envelope (12), a centering device (88) to permit the transfer to the downstream side while holding aligning the center of said shaft (80) of the outer object (12),
A transfer device that is arranged on the downstream side of the sizing sleeve (18) and pulls and transfers the main body (46) of the rod-shaped body (48) made of the thermosetting resin (14) together with the outer cover (12) ( 70) and configured from,
The centering device (88) is arranged on the inner peripheral surface of the sizing sleeve (18) at a required interval in the circumferential direction, and a plurality of fluids whose axes are directed radially outward from the shaft (80). blowing a hole (92), by blowing towards the jacket (38) the shaft (80) through said jacket (12) to supply high pressure fluid from the fluid outlets (92), the said outer An apparatus for manufacturing a rod-shaped body, characterized in that a collision portion of the fluid in the cover (12) is deformed and the shaft (80) is held in alignment with the central axis by the deformed portion . A die (16) for continuously extruding the thermoplastic resin (10) plasticized by heating to the outer cover (12) of the rod-shaped body (48) to be obtained;
A sizing sleeve (18) disposed on the downstream side of the die (16), for cooling and solidifying the outer cover (12) while regulating the outer contour shape of the outer cover (12);
Connected to the supply source (42) of the thermosetting resin (14) in a fluidized state, the opening faces the inside of the jacket (12) through the die (16), and the thermosetting resin A supply pipe (20) for filling and supplying (14) to the inside of the jacket (12);
A shaft supply device (82) for supplying a shaft (80) to the inside of the outer cover (12) , which is arranged on the upstream side of the die (16) and whose outer contour shape is regulated by the sizing sleeve (18) ;
Within said envelope (12), a centering device (88) to permit the transfer to the downstream side while holding aligning the center of said shaft (80) of the outer object (12),
The thermosetting resin (14) disposed on the downstream side of the sizing sleeve (18) and in a fluid state inside the jacket (12) is heat-cured to obtain the thermosetting resin (14). A heating device (50) as a main body (46) of the power rod (48),
It is arranged on the downstream side of the heating device (50), and comprises a transfer device (70) for pulling and transferring the main body (46) of the rod-shaped body (48) together with the outer cover (12) ,
The centering device (88) is arranged on the inner peripheral surface of the sizing sleeve (18) at a required interval in the circumferential direction, and a plurality of fluids whose axes are directed radially outward from the shaft (80). blowing a hole (92), by blowing towards the jacket (38) the shaft (80) through said jacket (12) to supply high pressure fluid from the fluid outlets (92), the said outer An apparatus for manufacturing a rod-shaped body, characterized in that a collision portion of the fluid in the cover (12) is deformed and the shaft (80) is held in alignment with the central axis by the deformed portion . A die (16) for continuously extruding the thermoplastic resin (10) plasticized by heating to the outer cover (12) of the rod-shaped body (48) to be obtained;
A sizing sleeve (18) disposed on the downstream side of the die (16), for cooling and solidifying the outer cover (12) while regulating the outer contour shape of the outer cover (12);
Connected to the supply source (42) of the thermosetting resin (14) in a fluidized state, the opening faces the inside of the jacket (12) through the die (16), and the thermosetting resin A supply pipe (20) for filling and supplying (14) to the inside of the jacket (12);
A shaft supply device (82) for supplying a shaft (80) to the inside of the outer cover (12), which is arranged on the upstream side of the die (16) and whose outer contour shape is regulated by the sizing sleeve (18);
A centering device (88) that allows transfer to the downstream side with the shaft (80) aligned and held in the center of the jacket (12) inside the jacket (12);
A transfer device that is arranged on the downstream side of the sizing sleeve (18) and pulls and transfers the main body (46) of the rod-shaped body (48) made of the thermosetting resin (14) together with the outer cover (12) ( 70) and configured from,
The centering device (88) is disposed on the inner peripheral surface of the sizing sleeve (18) at a required interval in the circumferential direction, and extends in a freely reciprocating manner from the radially outer side toward the shaft (80). a pin member (94), by extending toward the pin member (94) to the shaft (80) through said jacket (12), the pin member in the casing (12) ( 94) An apparatus for manufacturing a rod-shaped body, wherein the periphery of the contact portion of 94) is deformed and the shaft (80) is held in alignment with the central axis by the deformed portion . A die (16) for continuously extruding the thermoplastic resin (10) plasticized by heating to the outer cover (12) of the rod-shaped body (48) to be obtained;
A sizing sleeve (18) disposed on the downstream side of the die (16), for cooling and solidifying the outer cover (12) while regulating the outer contour shape of the outer cover (12);
Connected to the supply source (42) of the thermosetting resin (14) in a fluidized state, the opening faces the inside of the jacket (12) through the die (16), and the thermosetting resin A supply pipe (20) for filling and supplying (14) to the inside of the jacket (12);
A shaft supply device (82) for supplying a shaft (80) to the inside of the outer cover (12), which is arranged on the upstream side of the die (16) and whose outer contour shape is regulated by the sizing sleeve (18);
A centering device (88) that allows transfer to the downstream side with the shaft (80) aligned and held in the center of the jacket (12) inside the jacket (12);
The thermosetting resin (14) disposed on the downstream side of the sizing sleeve (18) and in a fluid state inside the jacket (12) is heat-cured to obtain the thermosetting resin (14). A heating device (50) as a main body (46) of the power rod (48),
It is arranged on the downstream side of the heating device (50), and comprises a transfer device (70) for pulling and transferring the main body (46) of the rod-shaped body (48) together with the outer cover (12) ,
The centering device (88) is disposed on the inner peripheral surface of the sizing sleeve (18) at a required interval in the circumferential direction, and extends in a freely reciprocating manner from the radially outer side toward the shaft (80). a pin member (94), by extending toward the pin member (94) to the shaft (80) through said jacket (12), the pin member in the casing (12) ( 94) An apparatus for manufacturing a rod-shaped body, wherein the periphery of the contact portion of 94) is deformed and the shaft (80) is held in alignment with the central axis by the deformed portion . Thermoplastic resin plasticized by heating (Ten) , Rod to get (48) Outer jacket (12) Die to continuously extrude (16) When,
  Die (16) Arranged on the downstream side of the jacket (12) While controlling the outer contour shape of the (12) Sizing sleeve that cools and solidifies (18) When,
  Thermosetting resin in fluid state (14) Source of (42) Connect the opening to the die (16) Through the jacket (12) Facing the inside of the thermosetting resin (14) The jacket (12) Supply pipe for filling inside (20) When,
  Die (16) Arranged on the upstream side of the sizing sleeve (18) The outer envelope whose outer contour shape is regulated by (12) Shaft inside (80) Shaft supply device (82) When,
  The jacket (12) Inside of the shaft (80) The jacket (12) Centering device that allows downstream transfer while being aligned and held in the center (88) When,
  The sizing sleeve (18) Arranged on the downstream side of the thermosetting resin (14) Rod-shaped body consisting of (48) Main body (46) The jacket (12) And a transfer device that pulls and transfers to the downstream side (70) And consisting of
  The centering device (88) Is
  Die (16) Upstream of the sizing sleeve (18) Which is molded into a cylindrical shape (12) A plurality of support rollers arranged so as to align with the central axis of the shaft and pivotally supported in an idle state (96) When,
  The sizing sleeve (18) The outer casing formed into a cylindrical shape (12) Shaft support located inside (98) With
An apparatus for manufacturing a rod-like body. Thermoplastic resin plasticized by heating (Ten) , Rod to get (48) Outer jacket (12) Die to continuously extrude (16) When,
  Die (16) Arranged on the downstream side of the jacket (12) While controlling the outer contour shape of the (12) Sizing sleeve that cools and solidifies (18) When,
  Thermosetting resin in fluid state (14) Source of (42) Connect the opening to the die (16) Through the jacket (12) Facing the inside of the thermosetting resin (14) The jacket (12) Supply pipe for filling inside (20) When,
  Die (16) Arranged on the upstream side of the sizing sleeve (18) The outer envelope whose outer contour shape is regulated by (12) Shaft inside (80) Shaft supply device (82) When,
  The jacket (12) Inside of the shaft (80) The jacket (12) Centering device that allows downstream transfer while being aligned and held in the center (88) When,
  The sizing sleeve (18) Arranged on the downstream side of the jacket (12) The thermosetting resin in a fluid state inside (14) The thermosetting resin is cured by heating. (14) Rod to get (48) Main body (46) Fake heating device (50) When,
  The heating device (50) Arranged on the downstream side of the rod-shaped body (48) Main body (46) The jacket (12) And a transfer device that pulls and transfers to the downstream side (70) And consisting of
  The centering device (88) Is
  Die (16) Upstream of the sizing sleeve (18) Which is molded into a cylindrical shape (12) A plurality of support rollers arranged so as to align with the central axis of the shaft and pivotally supported in an idle state (96) When,
  The sizing sleeve (18) The outer casing formed into a cylindrical shape (12) Shaft support located inside (98) With
An apparatus for manufacturing a rod-like body. Die (16) Thermoplastic resin extruded from (Ten) The sizing sleeve (18) The manufacturing apparatus of the rod-shaped body as described in any one of Claims 1-6 made to reduce diameter between. The rod-shaped body (48) From the jacket (12) Strip the shaft (80) Main body with a center (46) To expose the jacket (12) Winding mechanism (D) The manufacturing apparatus of the rod-shaped body as described in any one of Claims 1-7 with which is provided. The heating device (50) Curing device having a heat insulation area on the downstream side of (64) Is provided. , The manufacturing apparatus of the rod-shaped body of 4 or 6. The sizing sleeve (18) Is the outer casing formed in a cylindrical shape (12) Cylindrical hole through which (36) Jacket with (38) Made of this jacket (38) The cylindrical hole by the cooling medium supplied to (36) The jacket that passes through (12) The manufacturing apparatus of the rod-shaped body as described in any one of Claims 1-9 which solidify by cooling. Cylindrical hole (36) The inner contour of the cylindrical outer cover (12) The manufacturing apparatus of the rod-shaped body of Claim 10 set to the shape which regulates the external outline shape of this. The jacket (38) The jacket (12) And a plurality of jackets arranged along the feeding direction of the at least one jacket (38) In the cylindrical hole (36) Multiple pores communicating with (40) Is a perforated jacket (38) By holding the inside of the negative pressure, the plurality of pores (40) Through the jacket (12) The apparatus for manufacturing a rod-shaped body according to claim 10, wherein the rod is moved while being sucked into the inner surface of the cylinder. The heating device (52) Is a thermosetting resin in a fluid state (14) Which is filled inside (12) Pipe made of magnetic material that passes through (54) And the pipe (54) Induction coil wound around (56) And the induction coil (56) The pipe made of magnetic material (54) By induction heating the thermosetting resin (14) Harden the body part (46) Claim 2 , The manufacturing apparatus of the rod-shaped body of 4 or 6. The heating device (58) Is a thermosetting resin in a fluid state (14) Which is filled inside (12) Non-metallic pipe that passes through (60) And the pipe (60) Electrode arranged on the outer periphery of (62) And the electrode (62) The thermosetting resin by conducting dielectric heating by passing a high-frequency current through (14) Harden the body part (46) Claim 2 , The manufacturing apparatus of the rod-shaped body of 4 or 6. The heating device is a thermosetting resin in a fluid state (14) Which is filled inside (12) A non-metallic pipe that passes through the pipe and a heater wound around the outer circumference of the pipe. (14) Harden the body part (46) Claim 2 , The manufacturing apparatus of the rod-shaped body of 4 or 6. The heating device (100) Is a thermosetting resin in a fluid state (14) Which is filled inside (12) Non-metallic pipe that passes through (102) And the pipe (102) Induction coil wound around (104) And the induction coil (104) The thermosetting resin in the fluid state (14) Magnetic shaft held in the center of (80) By induction heating the thermosetting resin (14) Harden the body part (46) Claim 2 , The manufacturing apparatus of the rod-shaped body of 4 or 6. Thermosetting resin in the fluid state (14) Is a mechanically or chemically foamed foam, the thermosetting resin (14) Rod-shaped body obtained by curing (48) Body part (46) The device for producing a rod-shaped body according to any one of claims 1 to 16, which has a communication bubble structure. Thermosetting resin in the fluid state (14) Is a mechanically or chemically foamed foam, the thermosetting resin (14) Hardened body part (46) The thermoplastic resin (Ten) A jacket consisting of (12) Are integrally molded to form the rod-shaped body (48) And none, the main body (46) The device for producing a rod-shaped body according to any one of claims 1 to 16, which has an open cell structure or a closed cell structure.

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