JPH0790573B2 - Heat molding equipment for molding materials - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot molding apparatus suitable for continuous vulcanization molding of rubber products.

[0002]

2. Description of the Related Art As a continuous vulcanization molding apparatus for rubber products, a molding die is circularly moved along a circular conveying path, and an injection station, a vulcanizing machine, is provided along the conveying path. Injection and vulcanization of rubber materials at the vulcanization station, mold disassembly station, mold assembly station, etc.
2. Description of the Related Art A rotary vulcanization molding device is known that is capable of performing predetermined work such as mold disassembly and mold assembly.

FIG. 36 (A) schematically shows this rotary type continuous vulcanization molding apparatus. In the figure, a is a rotary table, b is a heating and mold clamping device arranged on the table a at predetermined intervals, and c is an injection device for injecting a rubber material into a molding die.

In this rotary type vulcanization molding device, a rubber material is injected into a molding die by an injection device c at an injection station.

The molding die which has received the injection of the rubber material is sequentially fed by the rotation of the table a while being heated and clamped by the heating and clamping device b, and the mold is disassembled at the subsequent station, the product is taken out, and the mold is removed. After assembling and the like, it reaches the injection station again, where the rubber material is injected again. Then, such an operation is repeatedly performed, and the rubber product is continuously vulcanized and molded.

However, this rotary vulcanization molding apparatus has a problem that it is difficult to cope with a change in vulcanization time.

[0007] For example, when it is desired to shorten the vulcanization time, even if the injection speed, the mold clamping speed, the mold opening speed, the rotation speed of the table and the like are shortened, they have their own limits, and the vulcanization time is kept below a certain time. It cannot be shortened.

On the contrary, when it is desired to lengthen the vulcanization time, the rotation speed of the table a may be slowed down, and therefore it is possible to realize this by using the same device.

However, in this case, although the injection speed, the mold clamping speed, the mold opening speed, etc. have sufficient margins, the entire cycle time becomes long, and the production efficiency is significantly lowered.

Therefore, in such a case, in such a rotary type vulcanization molding apparatus, the number of stations of the molding die and the heating / clamping apparatus is increased from 6 stations to 8 stations, and further to 20 stations. Inevitably, in this case, the device becomes large and complicated, and the device cost increases accordingly.

In addition, in the case of this rotary type vulcanization molding apparatus, there is a problem that it takes a lot of time to replace the molding die when the product type is changed (therefore, this is not generally done), and it is determined. Requires a certain number of molds, one of which is
If any of them is damaged, the vulcanization molding work may not be continued in some cases.

In addition, since different types of rubber products cannot be molded and vulcanized at the same time, there is a problem that they are not suitable for high-mix low-volume production.

On the other hand, as shown in FIG. 36 (B), at the injection station, the molding die d injected and filled with the rubber material is moved along the circulation conveyance path, and the heating furnace provided on the circulation conveyance path. An apparatus configuration is considered in which the molding die d is passed through the heating furnace e to heat the molding die d to cause a vulcanization reaction.

However, this device has drawbacks such as occupying a large floor area and poor thermal efficiency.

[0015]

The apparatus of the present invention has been devised to solve such a problem, and the gist thereof is (a) molding material for a molding die at an injection station such as injection. (2) A heating shelf device provided with an injecting device for injecting / filling by injection or the like; And (c) a carrying-in means for carrying the molding die into any one of the plurality of accommodating portions of the heating shelf device, and (d) taking out the molding die from the accommodating portion of the heating shelf device. And means.

[0016]

As described above, in the apparatus of the present invention, the molding die is housed in any one of the plurality of housing parts of the heating shelf device, and is heated there for a predetermined time. Is.

According to the apparatus of the present invention, it is possible to house a plurality of molding dies independently in the housing portion of the heating shelf device and heat them there for a predetermined time.

Therefore, it is possible to freely select the number of molding dies, and it is not necessary to use much nerve for maintenance of the molding dies.

Further, the heating time can be freely set or adjusted for each molding die, and since many kinds of molding dies can be used at the same time, only a single type of product can be used. It is also possible to heat-mold many types of products simultaneously.

In addition, even when the product type is switched, the setup work does not require much labor and time.

Further, the heating shelf device can be constructed so that a plurality of molding dies are stacked on top of each other, whereby the floor area occupied by the device can be reduced.

[0022]

Embodiments of the present invention will now be described in detail with reference to the drawings. In FIG. 2, reference numeral 10 denotes a molding die, which is composed of three divided bodies of an upper die 12, a middle die 14 and a lower die 16.

The upper die 12 is provided with bolt holes 22 for inserting the tightening bolts 18 and for accommodating the head portion 20, while the lower die 16 is provided with female screw holes 24. A screw bush 26 is screwed and attached to the.

The screw bush 26 is formed by densely winding a metal wire rod having a rhombic cross section into a cylindrical coil shape. Male and female threads are formed on the outer peripheral surface and the inner peripheral surface, and the male thread is the female thread of the lower die 16. It is screwed into the hole 24.

In this molding die 10, the inner periphery of the screw bush 26 in which the tightening bolt 18 is inserted from the bolt hole 22 of the upper die 12 so that the screw portion at the tip is screwed and attached to the female screw hole 24 of the lower die 16. By screwing into the female thread of the surface, the three divided bodies are tightened.

FIG. 1 shows an overall schematic configuration of an apparatus of this example for continuously vulcanizing and molding a rubber product with a metal fitting using the molding die 10.

In the figure, 28 is a metal fitting supply / product take-out device for supplying metal fittings and taking out a product (rubber molded product with metal fittings), and 30 is a mold assembling / disassembling device for mold assembly and disassembly. Reference numeral 32 is a fastening / releasing device that tightens the bolt 18 to fasten the molding die 10 or loosens the bolt 18 to release the fastening, and 34 denotes a fastening force applied to the molding die 10 to clamp the die. A mold clamping device for performing, 36 is a molding die 1 in a mold clamping state.
0 is an injection device for injecting a rubber material inside.

Reference numeral 38 denotes a die transfer device as a loading / unloading means for loading or unloading the molding die 10 injected / filled with the rubber material into / from the accommodating portion of the heating shelf device 40.

In the thermoforming apparatus of this example comprising a series of these devices, the metal fittings are supplied to the lower mold 16 by the metal fitting supply / product take-out device 28 at the station (a), and then the mold assembly and the mold assembly at the station (b). The middle mold 14 is placed on the lower mold 16 by the disassembling device 30. Next, in the station (C), the upper mold 12 is placed on the middle mold 14, and the bolts 18 are tightened in the station (D). Next, the mold is clamped and the rubber material is injected in the station (e), and the rubber material is heated and vulcanized and molded in the station (f) over a predetermined time.

After the rubber material is heated and vulcanized and molded, the molding die 10 is carried to the station (d) via the station (g), where the molding die 1 with the bolt 18 is formed.
Then, the upper mold 12 is removed at the station (c), the middle mold 14 is removed at the station (b), and the product (rubber molded product) is taken out at the station (a).

3 to 7 show a concrete structure of the die transfer device 38. As shown in the figure, the mold transfer device 38 has a traveling body 42 (see FIG. 3). As shown clearly in FIG. 4, this traveling body 42 is screwed into a screw shaft 48 that is rotationally driven by a motor 46 (FIG. 3) at a screwing portion 44, and the screw shaft 48 is
With the rotation of the rails 50, the rails 50 are allowed to travel in the left-right direction in FIG.

The running body 42 has columns 52 and plates 5 attached thereto.
4 and the vertical screw shaft 56 are provided in an upright state,
A motor 58 (see FIG. 4) provided on the traveling body 42 is connected to the screw shaft 56. An elevating body 60 is screwed onto the screw shaft 56 at a screwing portion 62, and the elevating body 60 is moved up and down as the screw shaft 56 rotates.

The elevating body 60 comprises a vertical plate 64, a frame 66, and a slide plate 68 slidably supported by the frame 66. A hook portion 70 is provided on the slide plate 68 so as to face downward, and the molding die 10 is suspended by the hook portion 70.

On the other hand, the frame 66 is provided with a rodless cylinder 72 as shown in FIGS. 5 and 6, and the slide plate 6 is attached to the rodless cylinder 72.
8 are operatively connected, so that the slide plate 68 can be moved forward and backward in the horizontal direction in FIG. 5B.

The vertical plate 64 is vertically divided into an upper plate 74 and a lower plate 76 as shown in FIG. 6B, and these are connected to each other by a connecting cylinder 78. . The connecting cylinder 78 is for vertically moving the upper plate 74 relative to the lower plate 76 by a minute stroke.

Specifically, the upper plate 74 is moved upward by a minute stroke to catch the molding die 10 by the hook portion 70 and lifted upward, or the upper plate 74 is moved downward by a minute stroke to form the molding die. The suspension of 10 is released.

As shown in FIG. 4A, the lifting body 60
The arm 80 extends from the back surface of the vertical plate 64 of FIG.
As shown in (A), the guide rail 82 provided along the support column 52 is fitted so that it can be guided up and down. A rail 84 is also provided at the end of the plate 54 provided on the traveling body 42 in an upright state.
A fitting portion 86 provided on the back surface of the vertical plate 64 is fitted to the rail 84 and guided for movement.

FIG. 7 shows the operation of this device.
In this apparatus, the slide plate 68 is directed rightward in FIG. 7 (FIG. 7) to receive the injection / filling of the rubber material at the station (e) in FIG. 1 and further to receive the molding die 10 sent rightward in the figure. It is moved forward (downward in 1) (I).

At its forward end, the connecting cylinder 78 causes the slide plate 68 to move upward together with the frame 66 and the upper plate 74 by a minute stroke.
Suspend the molding die 10 (II).

The slide plate 68 that suspends the molding die 10 is subsequently moved backward to take out the molding die 10 from the receiving position. After that, the traveling body 42 is moved to the right in FIGS. 1 and 3, and the suspended molding die 10 is inserted into the predetermined housing portion of the heating rack device 40 described above.

8 to 12 show a specific structure of the heating rack device 40. First, in FIG. 8, reference numeral 88 is a machine frame of the apparatus, in which a guide cylinder 90 is provided at a predetermined position, and an elevating rod 92 is slidably fitted to the guide cylinder 90.

The elevating rods 92 are arranged in groups of two left and right, two front and rear, four in total, and each elevating cylinder 9
4 and is vertically moved by a predetermined stroke under the guidance of the guide cylinder 90 by these elevating cylinders 94.

In this heating rack device 40, a large number of rack plates 95 and 96 (see FIG. 9) are arranged in a plurality of rows on the left and right and in a multi-tiered manner in the vertical direction, and the lower heating plate 100 is fixed upward on each upper surface. There is.

An upper heating plate 102 is arranged downward at a predetermined position above the lower heating plate 100, and the molding die 10 is housed between the upper heating plate 102 and the lower heating plate 100. Is formed.

The upper heating plate 102 is held by an upper plate 104, and the left and right ends of the upper plate 104 are supported by support plates 106 fixed to the elevating rod 92.

A short rod 108 is slidably fitted to the support plate 106 at a position between the front and rear elevating rods 92, as shown in FIG. A spring 112 is fitted and inserted between the receiving portion 110 and the support plate 106, and the spring 112 springs the rod 108 downward.

On the other hand, a pressing plate 113 is fixedly provided on the upper end of the rod 108, and the pressing plate 113 exerts a downward elastic force of the spring 112 on the upper plate 1.
It affects 04.

A guide plate 114 is provided on the upper plate 104. As shown in FIG. 11A, the guide plate 114 is provided with a rectangular notch 116, and the elevating rod 92 is inserted into the notch 116.

In this heating rack device 40, the upper heating plate 102 and the lower heating plate 102 are in a state in which the upper heating plate 102 is lifted by the lifting movement of the respective lifting rods 92 by the lifting cylinder 94 (FIG. 12 (I)). The molding die 10 is inserted and set in a housing portion between 100 and 100.

When the molding die 10 is inserted and set, then the elevating rod 92 is moved downward. At this time, when the upper heating plate 102 hits the upper surface of the molding die 10, the downward movement of the pressing plate 113 is prevented, and only the support plate 106 fixed to the elevating rod 92 descends together with the rod 108.

Along with this, the spring 112 fitted into the rod 108 is largely compressed and elastically deformed.
The elastic force is applied to the pressing plate 113 via the rod 108.
Therefore, the upper heating plate 102 is strongly pressed against the molding die 10 (FIG. 12 (II)).

That is, the molding die 10 is strongly sandwiched vertically by the lower heating plate 100 and the upper heating plate 102. The molding die 10 is kept in this state for a predetermined time, during which the rubber material filled inside is subjected to heat vulcanization molding. After the heat vulcanization molding, the operation of taking out the molding die 10 is almost the reverse of the above.

A concrete structure of the mold clamping device 34 is shown in FIG.
It is shown in FIG. First, in FIG. 13, 118 is an upper fixing plate of the mold clamping device 34, 120 is a base, and 122 is a tie rod. A movable platen 124 is connected to the mold clamping cylinder 126, and a mold mounting table 127 having a heating platen is provided on the upper surface thereof.

Reference numeral 128 is an elevating table slidably fitted to the tie rod 122, which is connected to an elevating cylinder 130 provided on the base 120. As shown in FIGS. 14, 15 and 16, four legs 1 are mounted on the lift base 128.
32 are erected. Two of these legs 132 are connected to each other at the upper end by a connecting plate 134.

As shown in FIG. 15, a guide 136 is provided on the upper surface of the connecting plate 134, and a U-shaped advancing / retreating member 138 having a longitudinal shape in the horizontal direction is horizontally provided via the guide 136. It is supported so that it can move back and forth in the direction (longitudinal direction).

As shown in FIG. 14, this retractable member 1
An arm 140 extends downward from the lower surface of 38, and its lower end is connected to a rodless cylinder 142. The rodless cylinder 142 drives the advancing / retreating member 138 in the horizontal direction, and is mounted on a support plate 144 that is erected on the elevating table 128.

On the other hand, as shown in FIG. 14, a supporting arm 148 extends from the machine frame 146 of the apparatus. The tip of the support arm 148 is supported by the base 120 via the rod 150, and a die mounting table 152 is provided on the upper surface thereof.

As described above, the mold clamping device 34 has a feed mechanism for the molding die 10, and its operation is as shown in FIG.
It is shown in FIG. In this apparatus, the movable platen 124 is pushed up from the state shown in (I) to clamp the molding die 10 together with the upper fixed plate 118, and in that state, the rubber material into the molding die 10 by the injection device 36 described above. Is injected (II).

In the meantime, or after the movable platen 124 is lowered, a new molding die (molding die in a state of being tightened by bolting) 10 is brought to a position adjacent to the mold clamping position by a moving table 198 described later. (III).

In this state, the lifting platform 128 is then lifted by the lifting cylinder 130 for a minute stroke. Then, the molding dies 10 at the mold clamping position and the position adjacent thereto are slightly lifted by the upper end of the advancing / retreating member 138. Subsequently, the advancing / retreating member 138 is attached to the rodless cylinder 142 as shown in FIG.
4. The molding die 10 that has been moved forward in the middle right direction and has the molding die 10 that is in the mold clamping position is located outside the right side and is located outside the left side.
To the clamping position.

After this, the lifting table 128 is moved down,
Along with this, the pair of molding dies 10 supported on the advancing / retreating member 138 is moved to the die mounting table 152 on the support arm 148.
It is mounted on the mold mounting table 127 on the movable plate 124.

Then, the mold die 10 brought to the mold clamp position is subjected to mold clamping / injection of the rubber material, and the mold die 10 moved to the right outside position is the mold die. The transfer device 38 removes it from the same position, and the heating shelf device 40
It is inserted and set in a predetermined accommodation part of.

On the other hand, the advancing / retreating member 138 released from the support of these molding dies 10 is followed by the rodless cylinder 14
At 2, the robot is moved backward to the left in the figure and returned to its original position.

20 to 23 show the structure of the injection device 36. First, 154 in FIG. 22 is an elevating cylinder for elevating and lowering the entire injection device, and 156 and 158 are guide cylinders which respectively guide the elevating and lowering. And a guide rod.

In FIG. 21, 160 is an injection cylinder, 1
62 is a plunger, 164 is an injection chamber for accommodating a rubber material to be injected, and 168 is an injection chamber 16 for plasticizing the rubber material.
An extruding cylinder 170 is supplied to the inside of the nozzle 4, and a switching valve 170 connects a passage of the rubber material to connect the extruding cylinder 168 and the injection chamber 164 or the injection chamber 164 and the injection nozzle 172. The switching valve 170 is driven by an actuator 176 supported via a bracket 174 as shown in FIGS.

24 and 25 show the bolt 18 of the molding die 10.
The structure of the fastening / releasing device 32 for tightening or loosening is shown. As shown in the figure, this fastening / releasing device 32
Is a lifting plate 1 that moves up and down under the guide of a guide rail 180 provided along the inner surfaces of the pair of side plates 178.
82 is provided.

Reference numeral 186 denotes a rotary head that engages with the head 20 of the bolt 18 to rotate it, and is a holding cylinder 188.
Is held by. The holding cylinder 188 is attached to the elevating plate 182.

In this apparatus, the rotary head 186 descends to engage with the head 20 of the bolt 18 of the molding die 10, and the bolt 18 is tightened by its own rotation to fasten the molding die 10. To do. Alternatively, they are fastened and released by rotating in the opposite direction.

Next, the concrete structure of the mold assembling / disassembling apparatus 30 will be concretely described with reference to FIGS. First, as shown in FIG. 26, this device includes a pedestal 190, a rail 192 laid on the upper surface of the pedestal 190, and a rail 1
Screw shaft 194 arranged above 92, and screw shaft 194
A motor 196 for rotationally driving and a moving base 198 that slides on the rail 192 with the molding die 10 placed on the motor 196.

As shown in FIG. 29, the moving base 198 is provided with a screwing portion 200, which is screwed into the screw shaft 194 at the screwing portion 200, and the screw shaft 194 is rotated based on the rotation of the screw shaft 194. , 27, 28 are screw fed in the left-right direction.

As clearly shown in FIG. 26, the mold assembling / disassembling device 30 is provided with an upper mold attaching / detaching mechanism 202, a middle mold attaching / detaching mechanism 204, and a product ejecting mechanism 206 adjacent to each other. Specifically, in the station (c) (see FIGS. 1 and 28), the upper mold attaching / detaching mechanism 202, the medium mold attaching / detaching mechanism 204 in the station (b), and the product ejecting mechanism 206 in the station (a) are respectively provided. It is provided.

The station (d) is a station for tightening or loosening the bolt 18 of the molding die 10, and the fastening / releasing device 32 is arranged therein. The station (g) supplies the mold 10 in the fastened state to the mold clamping device 34, or the mold 10 after the heat vulcanization treatment.
Is a station for receiving from the die transfer device 38.

Upper mold removing mechanism 202 and middle mold removing mechanism 20
As shown in FIGS. 26, 30, and 31, reference numeral 4 includes lifting cylinders 208 and 210, lifting rods 212 and 214, and a guide cylinder 216, respectively.

The upper mold attaching / detaching mechanism 202 and the middle mold attaching / detaching mechanism 204 have a common presser 218 (see FIG. 30) for preventing the lower die 16 from rising. An engaging claw 220 is provided on the upper end of the presser 218, and the engaging claw 220 is adapted to be engaged with the projecting part of the upper end of the lower die 16.

On the other hand, the upper die attaching / detaching mechanism 202 is used for the lifting rod 2
A hook portion 222 is provided at the upper end of the hook 12, and the hook portion 222 hooks the protruding portion of the upper die 12 to lift it.

Similarly, also in the medium-sized attaching / detaching mechanism 204, the hooking portion 224 (FIG. 31) is attached to the upper end portion of the elevating rod 212.
Is provided, and the hooking portion 224 is engaged with the protruding portion of the middle die 14 to lift it upward.

On the other hand, the product ejecting mechanism 206 is similar to the upper die attaching / detaching mechanism 202 and the middle die attaching / detaching mechanism 204 in that the lifting cylinder 2
26, lifting rods 212 and 214, and a guide cylinder 216.

Further, the product ejecting mechanism 206 has a projecting pin 228 connected to the elevating cylinder 227, and the projecting pin 228 carries out product projecting. The product ejecting mechanism 206 is used when necessary depending on the form of the product.

In this apparatus, the moving mold 198 moves the molding die 10 with the bolts 18 tightened to the station (G), and transfers the molding die 10 to the mold clamping device 34 there. . On the other hand, the molding die 10 taken out from the heating shelf device 40 is received on the moving table 198 from the die transfer device 38.

The movable table 198 on which the molding die 10 after the heat vulcanization treatment is placed is fed leftward in FIGS. 26 and 28 by the screw feeding action of the screw shaft 194, and at the station (d), the molding die is moved. The bolts 18 of 10 are loosened by the fastening release device 32, and the fastening of the molding die 10 is released.

The mold die 10 from which the fastening has been released is then sent to the station (C), where the upper die 12 is lifted up by the upper die attaching / detaching mechanism 202. Further, at the station (b), the middle mold 14 is next lifted by the middle mold attaching / detaching mechanism 204. The remaining lower mold 16 is further fed to the left in the drawing, and the product is ejected at the station (a) as required.

On the other hand, when assembling the dies, the lower die 16 is placed on the moving table 198 and the stations (a), (b),
(C) and (d) are sent in the right direction in the figure in this order, and the medium mold 14 is moved to the medium mold attaching / detaching mechanism 204 at station (b).
Placed on the lower mold 16 by the next station (C)
The upper die 12 is placed on the middle die by the upper die attachment / detachment mechanism 202, and subsequently, bolting, that is, fastening of the molding die 10 is performed at the station (d). The molding die 10 is sent to the station (g) in this state, and is then delivered to the mold clamping device 34.

32 to 35 show the construction of the metal fitting supply / product take-out device 28. As shown in FIGS. 32 and 33, this device has three extraction / supply units 23.
0,232,234. Each unit 230,
232 and 234 are chucks 236, 238 and 240,
As shown in FIG. 34, a slider 242 that moves in the horizontal direction and an elevating body 244 that moves up and down are provided.

The slider 242 has a threaded portion 246 on the back surface.
Is provided, and the screw shaft 2 on which the screwing portion 246 is provided
The screw shaft 248 is screwed in the horizontal direction (vertical direction in FIG. 1A) by the screw shaft 248, and is fitted to the rail 251 held by the rail holding body 250 to be guided for movement. It has become.

On the other hand, the elevating body 244 is provided with a vertical screw shaft 252, and this screw shaft 252 is screwed into a screwing portion 254 arranged on the front side of the slider 242. The vertical screw shaft 252 is used for the motor 2 provided on the lifting body 244.
56 is connected to the screw shaft 252 by the motor 256.
Is rotated, the elevating body 244 moves vertically under the guide of the vertical guide rail 258 (FIG. 35).

In the metal fitting supply / product take-out device 28, a predetermined unit supplies the metal fittings to the lower mold 16 on the moving table 198 located at the station (a), and after the heat vulcanization molding process, the metal fittings are lowered. The product remaining on the mold 16 is held by a chuck of another unit and taken out from the lower mold 16.

As described in detail above, the apparatus of this embodiment is such that the molding die 10 is fitted, clamped, clamped, rubber material is injected, and the die transfer device 38 places the heating shelf device 40 in any accommodating portion. The setting can be continuously and automatically performed, and the heating shelf device 40 has a large number of accommodating portions, and the molding die 10 is accommodated in any of the accommodating portions for heat treatment. Therefore, according to the heat molding apparatus of this embodiment, the number of molding dies 10 used does not matter, and each molding die 10 can be heated for a desired time. 10 can be used at the same time without any trouble.

Therefore, it is possible to carry out continuous vulcanization molding while mixing different kinds of products in a mixed state. In addition, even when the product type is changed, it does not require much time and labor for the setup change. In addition, the occupied floor area is small, and in addition, the mold matching, fastening, mold clamping, injection, and heat forming stations of the molding die 10 are arranged in a line, and the operation at each station and the movement from station to station. There is little waste in operation, continuous processing can be performed efficiently, and rubber products can be manufactured with high efficiency.

The heating shelf device 40 can be used not only for heating the molding die 10 that has been injected and filled with a rubber material, but also for preheating the molding die 10 in an empty state.

The embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention can replace the above-mentioned injection device with another injection device, and can be used for molding a resin material. The present invention can be applied in various forms without departing from the spirit of the invention, and various modifications can be made based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a continuous thermoforming apparatus that is an embodiment of the present invention, in which (A) is a plan view and (B) is a front view.

FIG. 2 is a perspective view of a molding die used in this embodiment.

FIG. 3 is an overall front view of a mold transfer device of the same continuous thermoforming device.

FIG. 4 is a view showing a main part of the mold transfer device.

FIG. 5 is a front view and a side view of an elevating body and peripheral portions of the same device.

FIG. 6 is a plan view and a rear view of the lifting body and its peripheral portion.

FIG. 7 is an explanatory view of the operation of the lifting body and its peripheral portion.

FIG. 8 is a diagram showing an entire heating shelf device of the same continuous thermoforming apparatus.

FIG. 9 is a front view of a main part of the heating rack device.

FIG. 10 is a side view of a main part of the heating rack device.

FIG. 11 (A) is a plan sectional view of a main part of the same heating rack device, and FIG. 11 (B) is a side sectional view showing the main part in an enlarged manner.

FIG. 12 is an operation explanatory view of the heating rack device.

13A and 13B are a front view and a side view showing the whole mold clamping device of the same continuous thermoforming device.

FIG. 14 is a front sectional view showing a main part of the same mold clamping device.

FIG. 15 is a side view (partial cross section) of a main part of the same mold clamping device.

FIG. 16 is a plan cross-sectional view of a main part of the same mold clamping device.

FIG. 17 is a cross-sectional plan view of essential parts of the same mold clamping device at a position different from that in FIG. 16.

FIG. 18 is an operation explanatory view of the mold clamping device, and is a diagram showing up to mold clamping release.

FIG. 19 is an operation explanatory view showing the process up to the die transfer following FIG. 18.

FIG. 20 is a side view and a front view showing the entire injection device of the same continuous thermoforming apparatus.

FIG. 21 is a side sectional view of a main part of the same injection device.

22 is a side sectional view of a main portion of the same injection device at a position different from that in FIG. 21. FIG.

FIG. 23 is a plan sectional view and a front sectional view of a main part of the same injection device.

FIG. 24 is a front sectional view and a side sectional view showing the entire fastening / releasing device of the same continuous thermoforming apparatus.

FIG. 25 is a plan sectional view and a side sectional view of a main part of the same fastening / releasing device, showing a state before and after a part of the operation in (B).

FIG. 26 is a diagram showing an entire mold assembling / disassembling device of the same continuous thermoforming device.

27A and 27B are a plan sectional view and a front sectional view showing a main part of the same mold assembling / disassembling apparatus.

FIG. 28 is a plan view showing each disassembly position in the same mold assembly / disassembly device.

FIG. 29 is a front and side sectional view of a main part of a mold moving device in the same mold assembling / disassembling device.

FIG. 30 is an explanatory diagram of the same mold assembling / disassembling device at an upper mold open / close position.

FIG. 31 is an explanatory diagram of the same mold assembling / disassembling device at the middle mold open / close position.

FIG. 32 is a diagram showing an entire metal fitting supply / product take-out device of the same continuous thermoforming device.

FIG. 33 is a front view (partially sectional view) of a main part of the same metal fitting supply / product extraction device.

FIG. 34 is a side sectional view of a main part of the same metal fitting supply / product extraction device.

FIG. 35 is a plan cross-sectional view of a main part of the same metal fitting supply / product extraction device.

FIG. 36 is an explanatory diagram for explaining the background of the present invention.

[Explanation of symbols]

 10 Molding dies 12 Upper dies 14 Middle dies 16 Lower dies 18 Tightening bolts 28 Metal fitting supply / product removal device 30 Mold assembly / disassembly device 32 Fastening / releasing device 34 Clamping device 36 Injection device 38 Mold transfer device 40 Heating rack Device 42 Traveling body 60 Elevating body 70 Hooking portion 74 Upper plate 76 Lower plate 78 Connecting cylinder 90 Guide tube 92 Elevating rod 94 Elevating cylinder 95, 96 Shelf plate 100 Lower heating plate 102 Upper heating plate 104 Upper plate 106 Support plate 108 Rod 112 Spring 113 Pressing plate 124 Movable plate 126 Clamping cylinder 128 Elevating table 130 Elevating cylinder 138 Elevating / retracting member 154 Elevating cylinder 160 Injection cylinder 162 Plunger 164 Injection chamber 168 Extrusion cylinder 186 Rotating head 202 Upper die detaching mechanism 204 Medium die detaching Structure 206 product protruding mechanism 208 elevating cylinder 212, 214, lift rod 218 pressing 220 engaging claws 222, 224 engaging portion 226 elevating cylinder 228 ejector pin 230, 232, 234 take-out supply unit 236, 238 and 240 chuck

Claims (1)

[Claims] 1. An injection device for injecting and filling a molding material in a molding die at an injection station; (b) a plurality of accommodating portions for accommodating the molding die; and the molding accommodated in the accommodating portion. A heating shelf device provided with a heating means for heating the mold; and (c) a carrying-in means for carrying the molding mold into any one of the plurality of accommodating portions of the heating shelf device.
And a take-out means for taking out the forming die from the accommodation portion of the heating shelf device.