CN1830654A - Pressure setting - Google Patents

Abstract

The present invention relates to one kind of pressure apparatus for hot pressing the processed material to form, and the pressure apparatus has one processed material supporting structure to support the introduced processed material with less displacement. The pressure apparatus possesses one support structure to hold the processed material between heating discs and with one pair of ring belt structures, each of which includes one ring belt for the processed material to be set on and one pair of belt wheel for the ring belt to be hung on. After processed material is set on the ring belt, the upper part of the ring belt and the processed material may be moved forwards and backwards in the material conveying direction.

Description

pressure device

technical field

The invention relates to a pressure device for hot-press forming a processed material.

Background technique

In the existing method, several pieces of processed materials (resin film, etc., and processed molded products are collectively referred to as "products") are arranged in the vertical direction through an intermediate hot plate, and several pieces of products are formed by one-time pressure processing and hot pressing. Mainly use multi-stage pressure device.

Such a multi-stage pressure device is disclosed in Japanese Patent Application Publication No. 137700, Heisei 2. The multi-stage pressure device has: an upper heating plate, at least one middle heating plate and a lower heating plate. These hot plates are heated to the forming temperature of the article. The upper and lower heating plates have pressure surfaces on their lower and upper surfaces respectively, and the upper and lower sides of the middle heating plate have pressure surfaces. The pressure surfaces of each hot plate are parallel to each other and slightly horizontal, and the upper and lower pressure surfaces are overlapped. The action of this pressure device is as follows. First, the hot plates are arranged with a gap between them in the stacking direction, and the product is placed on the pressure surface of the lower hot plate and the middle hot plate. Secondly, drive the hot plate to move toward each other, and soon the pressure surfaces of the adjacent hot plates on the upper and lower sides of the product will contact each other (that is, the product is clamped by the hot plates on the upper and lower sides). The hot plate is further driven to apply a compressive load to the product, and the pressure processing of the product is realized by hot pressing. Again, after the press processing is finished, drive the hot plates to move away from each other, and the product can be taken out from the multi-stage press device.

In the structure disclosed above, the product (material to be processed) is placed on a conveyance plate (caiyalia plate). The loader is a device that can support several conveying boards, and the conveying board and the products on the conveying board are horizontally moved and transported into the pressure device through the loader. The loader can transport several conveying boards arranged approximately horizontally together into the pressing device and/or take out several conveying boards together from the pressing device. The loader can support a plurality of horizontally arranged conveying boards in a state where the conveying boards are vertically overlapped at a predetermined interval, and can move the conveying boards inside and outside the press device. The carrier plate spacing when the carrier plates are supported by the loader is approximately equal to the spacing between the hot plates before the product is placed on the hot plate. The conveyor plate is moved horizontally by the loader, and the conveyor plate and the products held thereon are moved into or removed from the press.

Rollers or low-friction tables (plate-shaped members made of TEFLON (Teflon) (registered trademark) resin, etc.) The rollers or low-friction table support the conveying boards being transported by the loader, preventing the conveying boards or products from coming into contact with the hot plate of the press.

For the multi-stage pressure device with the above structure, in order to support the conveying board from bottom to top, each conveying board must be equipped with at least three rollers or low-friction tables. Especially in the case of forming heavy-weight products, more rollers or low-friction tables must be configured (the structure described in the above-mentioned document uses eight places). Therefore, in the conventional structure, when the conveying board is arranged on the rollers or the low-friction table so that it can move horizontally, the conveying board collides with the rollers or the low-friction table several times. As the rollers or low-friction tables collide with the conveying plate, the resulting impact is applied to the conveying plate several times, and there is a displacement of the product on the conveying plate relative to the conveying plate (ie, relative to the hot plate of the pressure device) due to the impact , The problem that hinders the forming of the product.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a press device for press processing the processed material. When the processed material is introduced into the press device, the processed material is supported by the supporting structure while the processed material is relatively The support structure is not prone to displacement.

In order to achieve the above object, the pressing device according to the present invention includes a support structure for supporting a material to be processed between hot plates, and the support structure has at least a pair of endless belt structures. The endless belt structure includes: an endless belt on which the material to be processed is placed and a pair of pulleys hanging on the endless belt. When the material to be processed is placed on the endless belt, the upper part of the endless belt and the material to be processed can be integrated. Move forward and backward in the conveying direction of the processed material.

In this structure, an endless belt and a pair of pulleys used in conjunction with the endless belt have at least the supporting function equivalent to the two rollers in the example of the prior art mentioned in the background art section. But in the structure described in the present invention, two belt pulleys and endless belt are connected, and processed material (or conveying plate) is placed on the endless belt, and the endless belt rotates smoothly and processed material moves as a whole, passes through endless belt, The inner pulley is in contact with the material to be processed, so that the impact caused by the contact between the inner pulley and the material to be processed is largely alleviated. As a result, the impact on the material to be processed (or the conveyance plate) when the material to be processed is conveyed is alleviated, and the material to be processed is less likely to be displaced relative to the support structure (the endless belt and the pulley).

Along the inner surface of the above-mentioned endless belt, the support member supporting the upper endless belt from bottom to top is set, therefore, the distance between a pair of pulleys corresponding to an endless belt can be lengthened, only by two endless belts and two matching belts. The pair of pulleys can support the material being processed (or convey the board). Therefore, the number of impacts caused by the contact between the processed material and the supporting structure can be further reduced, and the processed material is less likely to be displaced relative to the supporting structure.

Instead of endless belts, it is also possible to use endless chains.

As mentioned above, the use of the pressure device provided by the present invention alleviates the impact on the processed material (or the conveying plate) when the processed material is transported, and the processed material is less likely to be displaced relative to the hot plate.

Description of drawings

Fig. 1 is a front view of the whole pressure device according to the embodiment of the present invention.

Fig. 2 is a sectional view along line A-A in Fig. 1 .

Fig. 3 is a side view of an intermediate heating plate and a support structure of the pressure device according to the first embodiment of the present invention.

Fig. 4 is a top view of a pressure device according to a second embodiment of the present invention.

Fig. 5 is a side view of an intermediate heating plate and a supporting structure of a pressure device according to a second embodiment of the present invention.

Detailed ways

The structure of the pressure device according to the embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a front view of a pressure device according to a first embodiment of the present invention. In this embodiment, the pressing device 100 heat-presses the resin molded product (product) between several groups of hot plates for pressure forming, that is, a multi-stage pressing device. The product before forming is transported from outside to inside along the direction perpendicular to the paper in FIG. 1 by rollers not shown in the figure, and is arranged between the hot plates of the pressing device 100 . Hereinafter, this direction is defined as the conveyance direction of the product. Define a direction that is horizontal and perpendicular to the conveying direction, that is, the left-right direction in FIG. 1 is the width direction.

The hot plate has: the upper hot plate 121 of the uppermost part, the lower hot plate 122 of the lowermost part and several pieces (two in FIG. The upper hot plate 121, several middle hot plates 120 and the lower hot plate 122, its pressure surface (the surface that is in contact with the product during pressure processing. That is, the bottom of the upper hot plate 121, the top of the lower hot plate 122 and the surface of the middle hot plate upper and lower sides) are arranged in a slightly horizontal state. According to the order of the upper hot plate 121 , several intermediate hot plates 120 and the lower hot plate 122 are arranged from top to bottom.

The lower heating plate 121 is fixed on the workbench fixed plate 151 (Tabul fixed plate). The fixed plate 151 of the worktable moves up and down under the drive of the cylinder 160 which uses oil pressure or air pressure as the driving source. A crown fixed plate (クラウン fixed plate) 152 is provided on the sky part of the pressure device 100, and the upper heating plate 121 is fixed on the crown fixed plate 152.

Each intermediate thermal disk 120 is arranged on a thermal disk support structure not shown in the figure. If an upward load is applied to the intermediate hot plate 120, when the load exceeds the total weight of the intermediate hot plate 120 and the products placed on the intermediate hot plate 120, the intermediate hot plate 120 floats away from the hot plate support member. In the state where the product P and the metal delivery plate M carrying the product are arranged on the hot plate, the workbench fixed plate 151 is driven to move up, so first the lower heat plate 122 and the middle heat plate 120 above it are in contact with the product P, and then The intermediate hot plate 120 floats away from the hot plate support member, and the lower hot plate 122 moves integrally with the intermediate hot plate 120 . Then, the intermediate hot plate 120 and the upper intermediate hot plate 120 are in contact with the product P and the conveying plate M, and then the upper intermediate hot plate 120 floats up from the hot plate supporting member, and the lower intermediate hot plate 120 and the lower hot plate 122 Move as one. In this way, the intermediate hot trays 120 float up sequentially from bottom to top, and finally the uppermost intermediate hot tray 120 contacts the upper hot tray 121 through the product P and the transport plate M. At this time, all the products P and the conveying plate M are sandwiched between the heating plates without gaps.

In this state, continue to move up the fixed plate 151 of the workbench, and press the product P through hot press forming between the hot plates. In order to perform hot press forming, each hot plate must be preheated to the forming temperature of the product before press processing.

A support structure 124 is arranged on each of the middle hot plate 120 and the lower hot plate 122 , and the support structure 124 supports the product P and the transport plate M arranged between the heat plate and the heat plate above the heat plate. In this embodiment, the supporting structure 124 is arranged adjacent to the four competing groups of the middle heating plate 120 and the lower heating plate 122 , and the transport plate M is supported by the four corners of the supporting structure 124 . Under the action of the link mechanism 130 and the cylinder 170 , the several support structures 124 arranged in the vertical direction not only keep the distance from each other but also move up and down.

As shown in the figure, the link mechanism 130 has: the support shafts 131 and 132 vertically distributed on the inner wall surfaces 111 and 112 at both ends of the frame of the pressure device 100 in the width direction, and the support shafts 131 and 132 can be used as the center. Rotary arms 133 and 134 that perform rotary motion in a plane perpendicular to the horizontal plane. The pivots 135 and 136 are provided at the front sections of the pivoting arms 133 and 134 , and the pivoting arm 137 is connected to the pivoting arms 133 and 134 through the pivots 135 and 136 . The distance between the fulcrum 131 and the fulcrum 135 is equal to the distance between the fulcrum 132 and the fulcrum 136 , and any one of the inner walls 111 and 112 forms a parallelogram linkage with the rotary arms 133 , 134 , 137 . Both the inner wall surfaces 111 and 112 are perpendicular to the horizontal plane, so the rotating arm 137 moves up and down while maintaining the vertical state to realize the movement in the width direction. The air cylinder 170 is provided at the lower part of the support shaft 136, so that the swivel arm 134 swings to move the swivel arm 137 up and down.

The supporting structure 124 is fixed on the rotating arm 137 , and the supporting structure 124 moves vertically and widthwise with the movement of the rotating arm 137 . As shown in the figure, when the cylinder 170 supports the rotary arm 134 (the left side in the figure), the support structure 124 approaches the middle hot plate 120 from the horizontal direction, and the upper end of the support structure 124 is higher than the top of its corresponding middle hot plate 120 . On the other hand, when the cylinder 170 lowers the rotating arm 134 (the right side in the figure), the support structure 124 is away from the middle hot plate 120 from the horizontal direction, and the upper end of the support structure 124 is lower than the top of its corresponding middle hot plate 120 . Thus, in the state where the support structure 124 is supported by the air cylinder 170, the support structure 124 carries the conveying plate M, and the product P and the conveying plate M are inserted into the press device 100, and then the air cylinder 170 is driven to lower the support structure 124, and the intermediate heating plate 120 is mounted. The plate M is transported while the support structure 124 leaves the transport plate M.

Fig. 2 is a sectional view along line A-A in Fig. 1 . In order to simplify the drawing, only the middle heating plate 120, the conveying plate M, the product P and the support structure 124 are drawn in this figure, and other components are omitted. Although the following description is made with respect to the middle heating plate 120 , it is also applicable to the lower heating plate 122 .

As shown in FIG. 2 , the transport plate M is supported in four places by four sets of support structures 124 . Each supporting structure 124 includes: a pair of pulleys 124b arranged along the conveying direction (the left-right direction in the figure), and an endless belt 124a matched with the pair of pulleys 124b. The rotary shaft of each pulley is supported by a bearing structure that is fixed on the rotary arm 137 (Fig. 1), not shown among the figures, and can rotate. At least the outer periphery of the endless belt 124a is made of heat-resistant resin such as TEFLON (Teflon) (registered trademark) resin.

3 is a side view of the intermediate hot plate 120, the conveying plate M, the product P and the support structure 124 of the pressure device according to the first embodiment of the present invention, especially showing the order of placing the conveying plate M and the product P on the support structure 124 . In this figure, the transport board M and the products P on it are placed on the support structure 124 and transported from right to left in the figure.

FIG. 3(A) shows a state where the front end portion of the transport plate M in the transport direction is in contact with the support structure 124 on the near-hand side (right side in the figure). Further push the transport plate M to the left in the figure, then the pulley 124b rotates counterclockwise in the figure, and the rotating endless belt 124a of the pulley 124b rotates along the outer circumference of the pair of pulleys 124b. As a result, once the conveying plate M contacts the support structure 124, the conveying plate M and the upper portion of the endless belt 124a are smoothly conveyed as a whole, so that the products P will not be displaced due to the impact of the conveying plate M by the supporting structure 124. question.

Transport the transport plate M to contact with the support structure 124 inside (the left side in the figure), which is the state shown in FIG. 3(B). Further push the transport plate M to the left in the figure, then the pulley 124b of the inner support structure 124 rotates, and for transporting the transport plate M towards the transport direction, the endless belt 124a of the inner support structure 124 also rotates counterclockwise. As a result, once the conveying plate M contacts the inner supporting structure 124, the upper portion of the conveying plate M and the endless belt 124a of the inner supporting structure 124 is smoothly transported as a whole, so that the product P will not be supported by the inner supporting structure 124 by the conveying plate M. The problem of displacement of the structure 124 due to impact.

Push the conveying plate M further, and the conveying plate M is smoothly transported under the action of the endless belt 124a of the support structure 124 on the near-hand side and the inner side of the figure, as shown in Figure 3 (C), indicating that it is carried by the near-hand side and the inner side of the figure. The inner support structure 124 is supported from bottom to top. From this state, the support structure 124 is lowered as described above, and the transport plate M and the products P loaded thereon are placed on the intermediate hot plate 120 .

As mentioned above, the embodiments of the present invention, because the products are smoothly conveyed by the lower support structure with the endless belt and the products are carried on the support structure between the hot plates, so the difference between the support structure and the products (or transport plate) is greatly reduced. The impact generated by contact prevents the displacement of the product due to the impact.

The first embodiment of the present invention described above adopts a structure in which one carrier board is equipped with four sets of supporting structures. However, this embodiment is not limited to the above structure, and various derivative examples can be produced. The second embodiment of the present invention which will be described below is a derivative example.

FIG. 4 is a top view of a pressure device 100 according to a second embodiment of the present invention (corresponding to a cross-sectional view along line A-A in FIG. 1 ). Compared with the first embodiment of the present invention, this embodiment differs only in the support structure supporting the conveying plate, and other parts, namely the middle heating plate 120, the linkage mechanism 130 and other structures are the same as the corresponding parts in the first embodiment Since they are the same, detailed descriptions are omitted.

As shown in FIG. 4 , in the second embodiment of the present invention, each transport board M is supported by a pair of supporting structures 224 from bottom to top. The support structure 224 in this embodiment is the same as that in the first embodiment, and has a pair of pulleys 224b and an endless belt 224a used in conjunction with the pair of pulleys 224b. However, it is different from the first embodiment (refer to FIG. 2 ) in that the width in the transport direction is increased. The rotary shaft of each pulley is supported by a bearing structure that is fixed on the rotary arm 137 (Fig. 1), not shown among the figures, and can rotate. At least the outer periphery of the endless belt 224a is made of heat-resistant resin such as TEFLON (Teflon) (registered trademark) resin.

5 is a side view of the intermediate hot plate 120, the transport plate M, the product P, and the support structure 224 according to the second embodiment of the present invention, especially showing the order of placing the transport plate M and the product P on the support structure 224. In this figure, the conveying board M and the products P on it are draped on the support structure 224 and conveyed along the direction from right to left in the figure.

As shown in FIG. 5, in this embodiment, a support member 224c is arranged at an intermediate position between a pair of pulleys 224b. The supporting member 224c is made of a material having heat resistance such as TEFLON (registered trademark) resin and having a low coefficient of friction. The upper surface of the supporting member 224c is in contact with the inner surface of the endless belt 224a, and is slidable with respect to the upper surface of the supporting member 224c and the inner surface of the endless belt 224a. The friction between the upper surface of the supporting member 224c and the inner surface of the endless belt 224a is low, and the annular belt 224a can slide freely on the upper surface of the supporting member 224c. The support member 224c is fixed to the swing arm 137 (see FIG. 1 ), and can fully support the weight of the conveying board M and the product P. As shown in FIG.

FIG. 5(A) shows a state where the front end portion of the transport plate M in the transport direction is in contact with the support structure 224 on the near-hand side (right side in the figure). Further push the transport plate M to the left in the figure, then the pulley 224b rotates counterclockwise in the figure, and the rotating endless belt 224a of the pulley 224b rotates along the outer circumference of the pair of pulleys 224b. As a result, once the conveying plate M touches the support structure 224, the upper portion of the conveying plate M and the endless belt 224a is smoothly conveyed as a whole, so that the products P will not be displaced due to the impact of the conveying plate M by the supporting structure 224. question.

The conveying board M is conveyed by the endless belt 224a, and as shown in FIG.

As shown in FIG. 5 , the upper right end of the supporting member 224c in the figure is a slope that is lower on the right. Therefore, when the conveying plate M is inserted into the press device 100, even if the front end of the conveying plate M and the endless belt 224a below it are more or less lowered under the load of the product P, the conveying plate M and its lower portion will not be damaged. The problem that the endless belt 224a blocks the support member 224c can smoothly transport the conveying plate M and the endless belt 224a.

Further pushing the conveying plate M, the conveying plate M is smoothly conveyed under the action of the endless belt 224a, as shown in FIG. From this state, the support structure 224 is lowered as described above, and the transport plate M and the products P loaded thereon are placed on the intermediate hot plate 220 .

As mentioned above, according to this embodiment, one supporting structure corresponds to a pair of conveying boards, and the impact generated by the collision between the conveying board M and the components of the supporting structure 224 is transmitted to the conveying board M and the product P. When the plate M first contacts the supporting structure 224, the impact on the product (or the transporting board) during the transportation of the product is alleviated. Compared with the first embodiment of the present invention, the product is less likely to be displaced relative to the supporting structure.

Although heat-resistant endless belts are used in both the first embodiment and the second embodiment of the present invention, endless chains may also be used.

Claims (11)

1. A pressing device, which has: at least two hot plates arranged in a vertical direction; a hot plate driving device that makes the above-mentioned hot plates close to each other and performs pressure processing on the material to be processed disposed between the above-mentioned hot plates; A support structure for supporting the material to be processed between the hot plates, the material to be processed is transported horizontally from the outside of the pressure device and placed on the above support structure, characterized in that the above support structure has at least a pair of endless belt structures, and the above endless belt structure It includes: an endless belt on which the material to be processed is placed and a pair of pulleys on which the above endless belt is hung. When the material to be processed is placed on the above endless belt, the structure of the above endless belt can connect the upper part of the above endless belt and the above processed The material moves forward and backward as a whole in the conveyance direction of the above-mentioned workpiece. 2. The pressure device according to claim 1, characterized in that a supporting member for supporting the upper surface of the endless belt from bottom to top is provided along the inner surface of the endless belt. 3. The pressing device according to claim 1, wherein at least the outer periphery of the endless belt is made of heat-resistant resin. 4. The pressure device according to claim 1, characterized in that, the support structure can move vertically between a first position and a second position, and the first position means that the upper end of the above-mentioned endless belt is lower than the position The position corresponding to the upper surface of the heating plate on the lower side of the workpiece, and the second position refers to a position where the workpiece is lifted from the heating plate at a position corresponding to the lower side of the workpiece to support the workpiece s position. 5. The pressing device according to claim 1, wherein the material to be processed is supported by the supporting structure via a conveying plate. 6. The pressure device according to any one of claims 1 to 5, characterized in that it is a multi-stage pressure device, and the pressure device has an upper heating plate, a lower heating plate, and a At least one intermediate hot plate can process several pieces of processed materials between the above hot plates at the same time between the upper and lower hot plates, corresponding to the above-mentioned several pieces Each piece of material is provided with at least one pair of the aforementioned endless belt structures. 7. A pressing device, which has: at least two hot discs arranged in a vertical direction; a hot disc driving device that makes the hot discs close to each other and performs pressure processing on the material to be processed disposed between the hot discs; A support structure for supporting the material to be processed between the hot plates, the material to be processed is transported horizontally from the outside of the pressure device and placed on the support structure, characterized in that the support structure has at least a pair of endless chain structures, and the endless chain structure It includes: an endless chain on which the material to be processed is placed and a pair of pulleys on which the above-mentioned endless chain is hung. When the material to be processed is placed on the above-mentioned endless chain, the above-mentioned endless chain structure can connect the upper part of the above-mentioned endless chain The material moves forward and backward as a whole in the conveyance direction of the above-mentioned workpiece. 8. The pressure device according to claim 7, characterized in that a supporting member supporting the upper surface of the endless chain from bottom to top is provided along the inner surface of the endless chain. 9. The pressure device according to claim 7, characterized in that, the above-mentioned support structure can move along the vertical direction between the first position and the second position, and the first position means that the upper end of the above-mentioned endless chain is lower than the position The position corresponding to the upper surface of the heating plate on the lower side of the workpiece, and the second position refers to a position where the workpiece is lifted from the heating plate at a position corresponding to the lower side of the workpiece to support the workpiece s position. 10. The pressing device according to claim 7, wherein the material to be processed is supported by the supporting structure via a conveying plate. 11. The pressure device according to any one of claims 7 to 10, characterized in that it is a multi-stage pressure device, and the pressure device has an upper heating plate, a lower heating plate, and a At least one intermediate hot plate can simultaneously process several pieces of processed materials between the above-mentioned hot plates, and at least one pair of the above-mentioned endless chain structures is arranged corresponding to each of the above-mentioned several pieces of processed materials.

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