JP3766751B2 - Method and apparatus for manufacturing a hand for a handbag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention is mainly a type of handle which is attached by being inserted into a string through hole opened as a pair in an opening at the top of a bag such as a paper bag and locked.ofThe present invention relates to an improvement of the manufacturing method and the apparatus.
[0002]
[Prior art]
In various merchandise stores, paper bags of various sizes are prepared for the purpose of putting the merchandise and holding it to customers. Of these paper bags, the handbags are reinforced with thick paper or the like at the top edge of the paper bag, and a pair of string-through holes are made in the reinforcement, and both ends of the hand are inserted into the string-through holes. It is fixed in various ways.
[0003]
The first fixing method is to pass a hand (usually twisted fibrillated synthetic resin film) through the string threaded hole of the bag, and to form an enlarged part with a knot at the end of the bag and pull out from the string threaded hole I am trying not to. However, this lender requires manual work to form the knot and takes time, and the knots face each other on the inner surface of the bag, so when empty bags are stacked, the knot portion becomes thick and transported. It is also a problem in terms of storage.
[0004]
In order to solve such problems of the conventional hand, various methods have been proposed in which the knot is omitted and the stopper is automatically fixed to the end of the string. Specifically, for example, Japanese Patent Publication No. 7-49005 and Japanese Patent Publication No. 7-102161 have been proposed.
The invention of Japanese Examined Patent Publication No. 7-49005 provides two stopper forming cavities with a slight gap and a cutter that cuts the string between the cavities, and is near the cavity and far from the cutter. Using a forming device provided with a pin for holding the string, feed the string into the mold, press the predetermined position with the pin, then cut and remove the string between the two cavities with a cutter, and further extrude This is a method in which a molten resin is supplied from the machine to the cavity to form a rib-shaped stopper at the end of the string wider than the string surrounding the outer periphery of the end of the string.
[0005]
On the other hand, the invention of Japanese Examined Patent Publication No. 7-102161 has two stopper cavities arranged at intervals, and a connecting portion that secures a slight space between the cavities to surround the string. In the formed approximately H-shaped, one cavity is provided, thereby forming simultaneously two stoppers made of synthetic resin on the string and a connecting portion connecting these stoppers, and then cutting this connecting portion. This is a method of forming a stopper at the end of the cord.
[0006]
[Problems to be Solved by the Invention]
FIG. 26 shows a synthetic resin stopper S molded in the width direction at the end of the tape-like string H according to the invention described in Japanese Patent Publication No. 7-49005, but outward from the stopper S. The end T protruding in the longitudinal direction of the string H is a part cut by a cutter installed between the two cavities, and the fibers constituting the string gradually break apart during handling of the handle. It looks bad.
[0007]
The stopper S is formed so as to surround the periphery of the end of the string H, and therefore the end of the fiber h constituting the string H is not embedded in the stopper S. It is merely a state in which a molded body of a synthetic resin is placed on the surface.
Therefore, there is a problem that the stopper S is easily slipped with respect to the surface of the string H and easily removed. In order to prevent this, it is necessary to specially prepare the cord H having a surface with a large unevenness as much as possible, instead of a flat belt surface. Further, as described above, the stopper S is easily slipped off from the string H, so that it is necessary to form a wide stopper to prevent this.
[0008]
Further, since it is necessary to dispose the cutter between the two cavities independently of the mold, a space for disposing the cutter in the narrow gap and a driving device for the space are required. A considerable distance is required between the two cavities, the molding apparatus becomes large, and the driving apparatus becomes complicated.
Further, when the string H is cut in the mold, a small piece of the string H or broken yarn waste is generated and enters the cavity. Therefore, a device for cleaning and discharging the string H is necessary. Moreover, since it is necessary to shape | mold the stopper S so that the circumference | surroundings of the string H may be enclosed, this stopper S needs to protrude from the both-sides edge of the string H, and should be made into T shape. Therefore, there is a problem that the lender is restricted in design, and for example, the stopper S narrower than the width of the string H cannot be used.
[0009]
Furthermore, since it is necessary to place a cutter in the mold and operate it in correspondence with the opening and closing operation of the mold and the feeding and discharging operation of the string, time is required to cut the string during the molding cycle. Furthermore, there are many problems such as the time required for discharging cutting waste generated in this cutting step. Because of such various problems, there is a problem in that it is not possible to efficiently produce a stopper that is not related to the width or thickness of the string or that is excellent in design that is not simply a bar shape.
[0010]
FIG. 27 shows a string H having a stopper S obtained by the invention described in Japanese Patent Publication No. 7-102161. A synthetic resin is formed around the end h of the string H or on both sides. Since the connection part R is formed, the problem that the end h is scattered like the former can be solved.
According to this manufacturing method, it is necessary to form the stopper S at a predetermined position of the string H, then take out the string H from the molding machine and send it to the cutting machine, thereby cutting the intermediate part of the connecting part R. However, it is not easy to cut the connecting portion R connecting the two stoppers S into two accurately and efficiently with a cutting machine. In addition, according to this method, since the two steps of the forming step and the cutting step are required, it takes time to manufacture the litter, and there is a problem that the manufacturing cost is not reduced.
[0011]
Furthermore, when the synthetic resin which comprises the connection part R is cut | disconnected with a sharp cutter, a sharp corner | angular part will be formed in the cut part. If there is a sharp corner in the stopper part of the hand, there is a problem of cutting the operator's hand when attaching it to the bag, and this handbag is used by an unspecified number of people, especially the elderly and children. This is also undesirable because it causes a problem on the responsibility of the manufacturer.
[0012]
The object of the present invention is to solve the problems of the prior art, and the object is as follows.
B) To provide a handle having a stopper firmly fixed by embedding the end of the string.
(B) To provide a manufacturing method and apparatus for a litter manufactured by pressing and cutting a string without producing cutting waste in a mold.
[0013]
C) To provide a method and an apparatus for manufacturing a hand that does not cause the appearance of the end of the string to break apart.
(D) To provide a method and an apparatus for manufacturing a litter that can form a stopper regardless of the width of the string or the cross-sectional shape of the string, and has a stopper firmly fixed so as to bite the string.
(E) To provide a method and an apparatus for manufacturing a litter capable of efficiently carrying out a step of crushing and dividing a string and a forming step and manufacturing a litter efficiently.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the present invention uses a mold without pressing a cutter having another driving means in the mold as in the prior art, and pushes the string together with the closing operation of the mold. The molten resin is injected into the cavity in a state in which the end portion that has been divided using the tension generated in the string when the pressure is divided is slightly pulled into the cavity. The fibers forming the end portions of these are embedded in a resin constituting the stopper and molded like a anchor.
[0015]
1) A handbag for a handbag according to the present invention for achieving the above object is formed by crushing a string formed by weaving a large number of fibers, dividing it to form an end, and forming this end with a synthetic resin The stopper is fixed. The press-divided end portion protrudes longer than the surface of the stopper as in the conventional product and does not look like a backlash, and the heel is bonded so that the anchor is driven into the synthetic resin layer.
[0016]
2) Further, the end portion of the string of the handle is preferably embedded in the synthetic resin layer in a synthetic resin stopper with the fibers separated.
3) Further, in the method for manufacturing a handbag for a handbag according to the present invention, a string formed by weaving a large number of fibers is fed into a mold, and tension is applied to the string by a closing operation of the mold. When the mold is closed in a predetermined closed state, the string is divided while being pressed and crushed by a pressing dividing portion formed by a narrow linear surface between two adjacent cavities, and The cavity is filled with a molten resin in a state in which the divided end of the string is slightly drawn into the cavity.
[0017]
4) And the cut end of the string is configured to be filled with the molten resin while being supported at a predetermined position by a support portion protruding into the cavity.
5) Further, the handbag manufacturing apparatus according to the present invention includes two cavities arranged in the longitudinal direction of a string formed by weaving a large number of fibers close to the surface of the mold. , Having a tension generating surface that guides the string at a position apart from the two cavities and presses it together with the closing of the mold, and a pressure dividing portion composed of a narrow linear surface of the two molds between them, The tension generating surface is formed at an angle inclined with respect to the surface on which the two cavities and the crushing portion are formed, and when the mold is closed, the inclined surface is used to pull the string to generate a tension. It is configured as follows.
[0018]
6) In addition, the pressure dividing part formed between the two cavities prevents the resin from flowing between the two cavities to prevent the two cavities from being connected, and the mold is closed. It is configured to have a narrow linear width that can be divided by generating a local pressing force on the cord that is pinched at the time.
7) In the two cavities, a tip portion of a protruding pin for taking out the stopper is provided so as to be able to enter, and a support portion for holding the string in a predetermined position in a portion other than the protruding pin hole is provided. Protrusively formed.
[0019]
8) At least one of the two mold parts constituting the pressure dividing part is made of a material having a hardness higher than that of the mold part in which the cavity is perforated, or is processed to improve the hardness. ing.
In the present invention, the string is severely pressed locally by the mold itself or is crushed by crushing. Therefore, the divided ends are in a state in which the fibers are not aligned, and are effective in the molten resin. It is in a state of being embedded, and this exerts an anchor effect, bites into the stopper and fixes it to the end of the string.
[0020]
In the present invention, since the string is pressed strongly and crushed locally in the mold to sever the fiber, the fiber is not generated in the cavity and the molding process is continuously performed. Can do.
In the prior art, since the stopper molding process and the string cutting process are separated from each other, two processes are necessary, and it is difficult to manufacture the hand efficiently. For example, the string is divided by a process similar to the molding process of a normal synthetic resin molded product, and the end of the string is easily embedded in the resin, so that the manufacturing process can be simplified. It is possible to efficiently manufacture a hand having a stopper that is firmly fixed.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an outline of a series of manufacturing apparatuses M for manufacturing a handbag for a handbag according to the present invention, and a string supply for drawing a string H from a plurality of string storage boxes 1a and guiding it to a guide portion 1b. The molding machine 2 for molding a stopper S made of synthetic resin at a predetermined interval to the string 1 supplied from the string supply unit 1 and the string H supplied from the string supply unit 1, and a litter having stoppers arranged at both ends. 2 is constituted by a clamp pulling device 3 which is taken out in accordance with the molding cycle 2.
[0022]
The string H is selected in accordance with the large design of the paper bag to be used, but it can be woven using natural or synthetic fibers, or can be used in various cross sections such as a braided tape or round shape. However, for example, a so-called PP string or paper string obtained by fibrillating a synthetic resin film can be used. In short, any material may be used as long as it is fiberized and can be embedded in the stopper.
[0023]
FIG. 2 is a perspective view of the lower mold 4. The lower mold 4 is provided with a stopper molding portion 5 integrally or as a separate part at a predetermined interval, and a string H is supplied onto the stopper molding portion 5. An upper die, which will be described later, is placed on the lower die 4 and pressed, and in the process of closing the upper and lower molds, a slight tension is applied to the string H as described later, and 2 After the string H is crushed and divided by the press dividing portion 5b between the two cavities 5a and 5a, or the molten resin supplied to the upper mold side from an injection molding machine (not shown) with the cavities 5a and 5a The two stoppers S are molded at the same time.
[0024]
FIG. 3 shows a stopper molding portion 5 formed on the lower mold 4, (A) is a plan view, (B) is a cross-sectional view taken along line II in (A), and (C) is II- in (A). A cross section taken along line III is shown.
The stopper molding portion 5 has two cavities 5a and 5a arranged at a predetermined interval, and a press dividing portion 5b between them, and the inside of the cavities 5a and 5a is shown in FIG. And a protruding pin support 5d for supporting the string H and holding it in a predetermined position with respect to the flow of the molten resin as shown in FIG. Yes. This string support portion 5d is for lightly supporting the surface of the string H and allowing it to move slightly in the longitudinal direction of the string H, while holding it on the mating surfaces of the upper and lower molds to prevent falling. As shown in FIG. 5A, the cavities 5a and 5a are formed directly.
[0025]
In addition, inclined surfaces 6 and 6 are formed on both sides of the upper surface 5e including the stopper molding portion 5. When the upper mold 7 is pressed against the lower mold 4 as shown in FIG. 11, the inclined surfaces 6 and 6 have a string H between the cavities 5a and 5a and the upper surface 5e including the press dividing portions 5b and 7c. It is sandwiched between the inclined surfaces 6 and 6A and is pulled along the inclined surfaces 6 and 6A along with the movement of the mold so that the string H on the upper surface 5e is slightly applied with tension. is there.
[0026]
The press dividing portions 5b and 7c between the two cavities 5a and 5a have a function of pressing both surfaces of the string H in a narrow range when the molds 4 and 7 are closed, and dividing in a crushed state. The width d of this portion on the actual mold shown in FIG. 9 is formed in a linear shape with a narrow width that can be divided. And although it is slightly between the top surface of this press parting part 5b, and the surface in which the cavities 5a and 5a are formed, the press parting part 5b side protrudes. Thus, it can cut | disconnect in a crushing state by pinching the string H between the press parting parts 5b of narrow width, and pressing.
[0027]
In addition, the effect of dividing while being crushed can be exhibited well by attaching an inclined surface to the pressure dividing portion 5b. Further, the gap t (FIG. 9) between the molds 4 and 7 when the string H is locally crushed and divided is a resin melted from the cavities 5a and 5a in a state where the string H is crushed. It is set to have a function as a weir to prevent leakage.
[0028]
The pressing part 5b is usually formed directly between the two cavities 5a, 5a of the lower mold 4, but this part is narrow and linear, and the string H is attached to this part. It is a part that generates a relatively large stress when it is crushed while pinching, and is a part that is more likely to be damaged than other parts, so it has a high hardness and a tough mold material to increase durability. It is preferable to use another member or harden the mold member.
[0029]
4 to 8 show the core of the upper die 7, and FIG. 4 is a plan view thereof. A runner 7a is formed on the upper surface of the upper die 7, and a resin injection port 7b is formed at the end thereof. However, as shown in the cross section of FIG. 5, it passes through the upper die 7 and communicates with a cavity (FIG. 6) formed on the lower surface thereof. Note that two upper molds 7 are mounted on the mold support member for use, and in this embodiment, eight are used.
[0030]
As shown in FIG. 6, stopper molding portions 5A are drilled or inserted at predetermined intervals on the lower surface of the upper die 7, and are provided in FIG. 3 (A) as shown in FIG. Instead of the protruding pin hole 5c, a string support portion 5d is formed to protrude. Further, a press dividing portion 7c is also formed on the upper mold 7 side corresponding to the press dividing portion 5b shown in FIG. 3, and the string H is pushed between these press dividing portions 5b and 7c as described later. Divide while crushing.
[0031]
As shown in FIG. 8, inclined surfaces 6A corresponding to the inclined surface 6 shown in FIG. 3 are formed on both sides of the stopper molding portion 5A, and the upper die 7 is laminated on the lower die 4 (FIG. 3). When fitted, the string H is clamped as shown in FIG. And although it is a little, it can divide or shred while pressing and crushing the string H with the press parting parts 5b and 7c while applying tension to the string H. An extremely narrow clearance f (FIG. 9) is provided between the pressing part 5b (7c) and the surface of the cavity 5a, and the difference in pressing force between the pressing part 5b (7c) and the adjacent part. Like to give. That is, since the press dividing portions 5b and 7c press the string H locally and perform crushing, the steep pressing force can be reduced within a narrow range as compared with a portion where the string H is simply pinched and pressed. Need to be generated.
[0032]
Next, how the string H is crushed and divided between the upper and lower molds 7 and 4 will be described with reference to FIGS.
FIG. 12 shows a state in which the string H is inserted between the molds 7 and 4 as shown in FIG.
Next, when the molds 7 and 4 are brought close to each other, as shown in FIG. 13, the string H is pressed by the press dividing portions 7c and 5b formed between the cavities 5a and 5a.
[0033]
Further, when both molds 7 and 4 are brought closer to each other, a pressing force is applied to the string H extending from the cavities 5a and 5a to the inclined surfaces 6 and 6A as shown in FIG. Strongly pressed.
When this pressing state further proceeds, as shown in FIG. 15, the string H between the press dividing portions 7c and 5b becomes thin and film-like, and the other part of the string H receives a compressive force and generates a tension T. Yes. Then, finally, as shown in FIG. 16, the string H compressed in the film shape by the press dividing portions 7c and 5b is divided while being crushed.
[0034]
17, 18 and 19 show enlarged views drawn corresponding to FIGS. 14, 15 and 16, respectively.
FIG. 17 shows a state in which the string H sandwiched between the press dividing portions 7c and 5b is compressed like Ha and gradually becomes thinner. However, in this state, the other portions of the string H are not greatly compressed.
[0035]
FIG. 18 shows a state in which the press dividing portions 7c and 5b further compress the string with the pressing force P into a film shape, and the string H at the outer portion of the cavity 5a is compressed to be smaller than the pressing force P. A force p is applied, and a tensile force t is applied to the string H in the cavity 5a adjacent between the press dividing portions 7c and 5b.
FIG. 19 shows a state in which the string H is further compressed by the press dividing portions 7c and 5b and further crushed from the film shape and divided. When the string H is locally crushed and divided in this way, the tensile force t acting on the string H in the cavity 5a is released, and the divided tip of the string H enters the cavity 5a. It will be slightly retracted.
[0036]
In FIGS. 17 to 19, the cavity 5 a and the press dividing portions 7 c and 5 b are illustrated in an enlarged manner, but the fibers constituting the string H are hardly left between the press dividing portions 7 c and 5 b. Moreover, even if it remains, there is substantially no problem in the molding process.
Next, the forming process of the lender will be described.
FIG. 10 shows a process of guiding the string H to the mold apparatus by a clamp tensioning device, and the lower mold 4 and the upper mold 7 (the actual apparatus is a core) are opened with a predetermined distance apart. H is moved on the two cavities 5a and stopped at a predetermined position.
[0037]
In this state, the tip of the rear protruding pin 8 slightly protrudes from the inside of the cavity 5a of the lower mold 4, and the front protruding pin is flush. Further, a string support portion 5d is formed on the upper mold 7 side corresponding to the protruding pin 8, and the string H is held in a predetermined posture in the cavity 5a by the string support portions 5d of the upper and lower molds 7, 4. It comes to hold.
[0038]
Next, the lower die 4 is moved with respect to the upper die 7 as shown by an arrow A, and the string H is held between the upper surface 5e and the inclined surfaces 6 and 6A. In this case, the string H is pulled by the inclined surfaces 6 and 6A as indicated by arrows B and B, and a tensile force is applied to the string H on the press dividing portions 5b and 7c as indicated by arrows C and C. Become.
The state in which the string H is pressed and crushed between the press dividing portions 5b and 7c formed in both molds 7 and 4 and further divided is as described with reference to FIGS. .
[0039]
Although the string H is crushed and finally divided in the pressing process of the mold, the string H does not become a sharp cut as it is cut with a blade.
Now, as shown in FIG. 11, FIG. 16 and FIG. 19, when the string H is locally crushed and linearly divided by the press dividing portions 5b and 7c, as shown in FIG. A slight tension t is applied to. Therefore, when the string H is crushed and divided as shown in FIG. 19, the end Ha is pulled into the cavities 5a and 5a by the tension t, and the cavity 5a, The end portion of the string H in 5a is restored and expanded in a state close to the original state, and is easily joined to the molten resin.
[0040]
The molten resin is injected into the runner 7a of the upper mold 7 shown in FIG. 4 through the nozzles of the injection molding machine into the cavities 5a, 5a in which the ends of the string H divided as shown in FIG. 19 are accommodated. Are injected into the cavities 5a and 5a formed on the mating surface of the upper mold 7 and the lower mold 4, and the molding is completed after a predetermined time.
[0041]
FIGS. 20A, 20B, and 25 show a front view, a side view, and a partially cut perspective view of the handle 20 obtained by the present invention, respectively. It is in a position retracted by a slight distance k from the side end surface of the stopper S. This distance k is related to the tension generated by the pressure division as shown in FIG.
[0042]
Further, although not shown, another type has a state in which the end portion Hf of the string H is embedded in the synthetic resin constituting the stopper S, and the fibers of the end portion Hf are in a dispersed state or a gathered state. Alternatively, it is embedded and integrated in the synthetic resin in a state where dispersion and aggregation are mixed, and the distance k does not substantially exist, and the fibers of the end Hf are firmly embedded in the synthetic resin in an anchor shape. And can exhibit a large resistance to the tensile strength.
[0043]
Next, the overall manufacturing process of the hand 20 will be described.
Through the steps described above, molten resin is injected into the cavities 5a and 5a formed on the mating surface of the upper mold 7 and the lower mold 4 to simultaneously mold two stoppers as shown in FIG.
FIG. 21 shows the stoppers S1 and S2 protruding from the cavities 5a and 5a and protruding by the pins 8a and 8b. The stopper S2 side is the front end of the second hand 20 and the stopper S1 is the first hand. The rear end of the hand 20 is shown.
[0044]
The front side of the string H1 of the handle 20 having the stopper S1 as the rear end is held by claws 21 and 21a of the clamp tensioning device 3 as shown in FIG.
As shown in FIG. 24, the clamp pulling device 3 is configured by providing a fixed claw 21 and a movable claw 21a on an air chuck 3a, and a support guide 21b for a stopper S between the claw. Then, the clamp tensioning device 3 is moved as shown by an arrow X, and the support guide 21b is protruded from the cavity 5a of the lower mold 4 by the protruding pin 8 and held at a predetermined position below the stopper S in the standby state. When positioned, the fixed claw 21 and the movable claw 21a move to a position beyond the stopper S. In this state, the movable claw 21a is moved upward to grip the stopper S.
[0045]
Then, as described above, the two stoppers S1 and S2 are released from the cavity 5a on the lower mold 4 side by the protruding pins 8a and 8b, and are raised to a predetermined position (FIG. 21), and then the clamp that already holds the stopper S By moving the claws 21 and 21a of the tensioning device 3 forward as shown by the arrow M, the stopper S1 at the rear end of the string H1 of the first handle 20 protrudes and comes off the pin 8a, as shown in FIG. It is taken out from the molding machine 2 shown and carried out to a predetermined position.
[0046]
In this way, when the first hand 20 is carried out, the claws 21 and 21a of the clamp tensioning device 3 are retracted in the direction opposite to the arrow M, and as shown in FIG. 23, at the tip of the rear protruding pin 8b. At the same time as holding the stopper S2 formed at the tip of the string H2 of the second hand 20 that is lightly held, the protruding pins 8a and 8b descend as shown by arrows.
[0047]
Then, the claws 21 and 21a are pulled out in the direction of the arrow M by a predetermined distance by the pulling device. As a result, the two stoppers S1 and S2 are discharged from the mold, and the string H is pulled between the molds 4 and 7 as shown in FIG. Thereafter, in the same manner, (1) the pulling operation of the string H (FIG. 10), (2) the operation of crushing the string H with both molds in the injection molding machine (FIGS. 11 to 19), (3) After the operation of injecting the molten resin into the cavity 5a is performed, the operation described with reference to FIGS. 21 to 23 is performed to manufacture the hand 20 continuously.
[0048]
In the description of the embodiment, the case where the string is in the form of a tape has been described. However, any string can be used as long as it can be used by the lender, such as a braided string having a round cross section. Can be used.
[0049]
【The invention's effect】
  1) According to the invention of claim 1 of the present invention,When a string formed by weaving a large number of fibers is fed into a mold, the string is stretched, tension is applied by a closing operation of the mold, and the mold is closed to a predetermined closed state. In a state where the string is crushed and divided by a pressing and dividing portion formed by a narrow linear surface between the two cavities, and the cut end of the string is slightly pulled into the cavity. Since the cavity is filled with the molten resin, it is possible to manufacture a hand that is firmly embedded in the end image stopper of the string and can withstand a large tension.
  Therefore, even if a stopper shorter than the length of the string is used, a sufficiently strong one can be manufactured.
[0050]
  2) According to the invention of claim 3,Close to the mold surfaceA string formed by weaving many fibersGuides the two cavities arranged crossing the longitudinal direction of the two, the press dividing part formed by the narrow line of the two molds between them, and the string at a position away from the two cavities And a tension generating surface for applying tension to the string together with closing of the mold, and the tension generating surface is formed at an angle inclined with respect to the surface on which the two cavities and the press dividing portion are formed. In this case, the tension is generated by the inclined surface so that the string is crushed and divided in the mold, and the fibers constituting the string are made of resin like an anchor. During ~Embedded in,as a result,Great tensionBearCan be manufactured.
[0051]
Moreover, since a method of crushing and dividing the string in the mold is used, no lint is generated as in the conventional manufacturing method of cutting with a cutter, and therefore the cavities are cleaned one by one at each molding. There is no need, the molding process can be simplified and shortened, and production can be performed with high efficiency.
Furthermore, the stopper is embedded in the string and is firmly bonded and fixed, so that it can be used not only with the rod-shaped stopper that is generally used in the past, but also with other shapes of stoppers. It is possible to manufacture a hand that is excellent in attachment to the head.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a manufacturing apparatus for a hand for a handbag.
FIG. 2 is an enlarged perspective view showing a part of a lower mold.
3A is a plan view of a cavity portion formed in a lower mold, FIG. 3B is a cross-sectional view taken along line II in FIG. 3A, and FIG. 3C is a cross-sectional view taken along line II-II in FIG. is there.
FIG. 4 is a plan view of an upper part of an upper mold (core).
5 is a cross-sectional view of FIG.
6 is a bottom view of FIG. 4. FIG.
7 is a plan view of the cavity portion shown in FIG. 4. FIG.
8 is a cross-sectional view taken along line III-III in FIG.
FIG. 9 is a cross-sectional view of a main part in a state where an upper mold and a lower mold are closed.
FIG. 10 is an explanatory view showing a state where a mold is opened.
FIG. 11 is a cross-sectional view showing a state immediately before the mold is closed and the resin is injected.
FIG. 12 is a cross-sectional view showing the relationship between upper and lower molds and strings.
FIG. 13 is a cross-sectional view showing a state in which a string is lightly pressed by a press dividing portion.
FIG. 14 is a cross-sectional view showing a state in which the string is strongly pressed by the press dividing portion and the string is also pressed in other portions.
FIG. 15 is a cross-sectional view showing a state immediately before cutting by crushing a string at a pressing part.
FIG. 16 is a cross-sectional view showing a state where an end portion of a divided string is expanded in a cavity.
17 is an enlarged view of a main part of FIG.
18 is an enlarged view of a main part of FIG.
FIG. 19 is an enlarged view of a main part of FIG.
20A is a front view of a stopper at the end of a handle, and FIG. 20B is a side view thereof.
FIG. 21 is an explanatory diagram of the manufacturing process of the lender.
FIG. 22 is an explanatory diagram of a manufacturing process of the lender.
FIG. 23 is an explanatory diagram of a manufacturing process of the lender.
FIG. 24 is a perspective view showing a main part of the clamp tensioning device.
FIG. 25 is a perspective view showing an example of the litter of the present invention in a sectional view locally.
FIG. 26 is a perspective view showing an end portion of a conventional hand.
FIG. 27 is a perspective view showing an end portion of a conventional hand.
[Explanation of symbols]
M Hand making device H string Ha end
DESCRIPTION OF SYMBOLS 1 String supply part 1a Box 1b Guide part 2 Forming machine
3 Clamp tension device 4 Lower mold 5 Stopper molding part
5a Cavity 5b Press cutting part 5c Projection pin hole
5d String support part 5e Upper surface 6, 6A Inclined surface
7 Upper mold 7a Runner 7b Inlet 7c Press dividing part
8, 8a, 8b Projecting pin 20

Claims (8)

When a string formed by weaving a large number of fibers is fed into a mold, tension is applied to the string by a closing operation of the mold, and when the mold is closed to a predetermined closed state, In a state in which the string is crushed and divided by a press dividing part consisting of a narrow linear surface between two adjacent cavities, and the cut end of the string is slightly pulled into the cavity. method of manufacturing a hand hanging for carrier bags, characterized that you fill the molten resin into the cavity. The method for manufacturing a handbag for a handbag according to claim 1, wherein the end portion of the string is filled with the molten resin in a state where the end portion is supported at a predetermined position by a support portion protruding into the cavity . Two cavities arranged in the longitudinal direction of the string formed by weaving a large number of fibers in close proximity to the mold surface, and two narrow molds between the two molds between them. And has a tension generating surface that guides the string separated from the two cavities and applies tension to the string as well as closing the mold, and the tension generating surface is separated from the two cavities. A handbag carrying handle characterized by being formed at an angle inclined with respect to the surface on which the portion is formed and configured to generate tension on the string by the inclined surface when the mold is closed. Equipment . The pressure dividing part formed between the two cavities prevents the resin from flowing between the two cavities to prevent the two cavities from being connected, and is sandwiched together with the mold closing. 4. The handbag manufacturing apparatus according to claim 3, wherein the handbag has a narrow linear width that can be crushed and divided by generating a local pressing force on the string . In the two cavities, a tip of a protruding pin for taking out the stopper is provided so as to be freely inserted, and a support portion protrudes in order to hold a string of a portion other than the protruding portion of the protruding pin in a predetermined position. The handbag manufacturing apparatus for a handbag according to claim 3 or 4, wherein the handbag manufacturing apparatus is formed. At least one of the two mold parts constituting the pressure dividing part is made of a material having a hardness higher than that of the mold part having the cavity drilled, or is processed to improve the hardness. 6. A handbag manufacturing apparatus for a handbag according to claim 3 . 7. The hand bag carrier according to claim 3, wherein when the mold is closed in a predetermined closed state, the surface of the mold compresses and crushes the string located outside the two cavities . Manufacturing equipment. 8. When the molten resin is filled into two cavities, the tip of the rear protruding pin protrudes slightly from the inside of the cavity, and the tip of the front protruding pin is disposed flush with the cavity . Hand-manufacturing equipment.

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