阅读说明：本技术 亚克力板折弯加工装置 (Acrylic plate bending device ) 是由 魏杰 宛俊 于 2021-07-23 设计创作，主要内容包括：本申请涉及板材加工技术领域,尤其是涉及一种亚克力板折弯加工装置,其包括蒸汽加热机构、割槽机构、覆膜机构和折弯驱动机构,蒸汽加热机构包括工作面板,割槽机构用于对亚克力板的一侧割槽,覆膜机构用于对压力板的另一侧覆膜,折弯驱动机构驱使工作面板翻转且使得亚克力板沿靠近割槽一侧的方向折弯。本申请具有以下效果：先通过夹持机构将亚克力板夹持固定在两个工作面板之间,并通过覆膜机构对亚克力板靠近工作台面的一侧进行覆膜；然后通过割槽机构对亚克力板远离工作台面的一侧进行割槽,再通过蒸汽箱在加热槽口处对亚力克板进行局部加热,然后通过折弯驱动机构将亚克力板沿靠近割槽一侧的方向折弯成型,步骤简单,操作便捷。(The utility model belongs to the technical field of the panel processing technique and specifically relates to a processing apparatus that bends of ya keli board is related to, and it includes steam heating mechanism, grooving mechanism, tectorial membrane mechanism and the actuating mechanism that bends, and steam heating mechanism includes working panel, and grooving mechanism is used for the one side grooving to the ya keli board, and tectorial membrane mechanism is used for the opposite side tectorial membrane to the pressure plate, and actuating mechanism that bends orders about the working panel upset and makes the ya keli board bend along the direction that is close to grooving one side. The present application has the following effects: firstly, clamping and fixing an acrylic plate between two working panels through a clamping mechanism, and laminating one side of the acrylic plate close to the working table top through a laminating mechanism; then one side of keeping away from table surface to the ya keli board through cutting the groove mechanism cuts the groove, and rethread steam box carries out local heating to the ya keli board at heating notch department, then bends the shaping along the direction that is close to cutting groove one side with the ya keli board through the actuating mechanism that bends, and the step is simple, the simple operation.)

1. The utility model provides an inferior gram force board processingequipment that bends which characterized in that: comprises a steam heating mechanism (1), a grooving mechanism (3), a film coating mechanism (4) and a bending driving mechanism (5), the steam heating mechanism (1) comprises a steam box (11) and a working panel (12), the steam box (11) is provided with two heating notches (112), the working panels (12) are symmetrically arranged along the heating notches (112), one end of each working panel (12) close to the corresponding heating notch (112) is rotatably arranged on the steam box (11), the grooving mechanism (3) and the film covering mechanism (4) are both arranged at the heating notch (112), the grooving mechanism (3) is used for grooving one side of the acrylic plate, the film coating mechanism (4) is used for coating the other side of the pressure plate, the bending driving mechanism (5) is arranged below the working panel (12), and the bending driving mechanism (5) drives the working panel (12) to turn over and enables the acrylic plate to be bent along the direction close to one side of the cutting groove.

2. The acrylic plate bending device according to claim 1, characterized in that: be equipped with fixture (2) that are used for carrying out the centre gripping to the ya keli board on work panel (12), fixture (2) are including setting firmly first compression roller subassembly (21) that work panel (12) is close to heating notch (112) one end and slide and set up second compression roller subassembly (22) of keeping away from heating notch (112) one end at work panel (12).

3. The acrylic plate bending device according to claim 1, characterized in that: cut groove mechanism (3) including cutting groove cutter (31), cutting groove driving motor (32) and lead screw slip table subassembly (33), lead screw slip table subassembly (33) are striden and are established on work panel (12), and lead screw slip table subassembly (33) set up along the length direction who heats notch (112), cutting groove driving motor (32) are fixed on the slip table of lead screw slip table subassembly (33), the output at cutting groove driving motor (32) is established in cutting groove cutter (31), the terminal surface of cutting groove cutter (31) parallels with the moving direction of slip table.

4. The acrylic plate bending device according to claim 1, characterized in that: the laminating mechanism (4) comprises a raw material roller (41) and a traction roller (42), wherein the raw material roller (41) and the traction roller (42) are both rotatably arranged on the steam box (11), and the raw material roller (41) and the traction roller (42) are respectively arranged at two ends of the heating notch (112) in the length direction.

5. The acrylic plate bending device according to claim 4, wherein: raw materials roller (41) and carry over pinch rolls (42) all establish the below at work panel (12), steam chest (11) all are equipped with guide roll (43) in raw materials roller (41) and carry over pinch rolls (42) top, the roll surface of guide roll (43) all is tangent with one side that steam chest (11) were kept away from to work panel (12).

6. The acrylic plate bending device according to claim 1, characterized in that: steam box (11) all are equipped with thermal-insulated chamber (113) in the below of work panel (12), the actuating mechanism (5) of bending is including establishing telescopic cylinder (51) in thermal-insulated chamber (113), the one end of telescopic cylinder (51) is rotated and is set up on the chamber wall in thermal-insulated chamber (113), and the other end of telescopic cylinder (51) is rotated and is set up and serve in one of work panel (12) keeping away from heating notch (112).

7. The acrylic plate bending device according to claim 1, characterized in that: steam box (11) are close to the one end of work panel (12) and can dismantle and be provided with case lid (13), during work panel (12) upset, the one end that heating notch (112) was kept away from in work panel (12) slides and sets up on the inside wall of case lid (13), grooving mechanism (3), tectorial membrane mechanism (4) and bending actuating mechanism (5) are all established in case lid (13).

8. The acrylic plate bending device according to claim 2, characterized in that: one side that work panel (12) are close to steam chest (11) all is equipped with insulating layer (121), the one end that insulating layer (121) are close to heating notch (112) is equipped with turn-ups (122), turn-ups (122) are established on the lateral wall of heating notch (112).

Technical Field

The application relates to the technical field of plate processing, in particular to an acrylic plate bending processing device.

Background

The acrylic material is a plastic high polymer material, and the product has good transparent effect, weather resistance and high chemical stability; and the acrylic material is easy to dye, easy to process and beautiful in appearance, and has wide application in modern life.

Acrylic sheets are useful in the manufacture of signage due to their excellent properties. In order to make the signboard function not only simply as a sign, the signboard is also designed to have a special bent shape, so that the signboard can also have a decorative effect. In the related art, the step of bending the acrylic plate comprises the following steps: grooving along the seam at the position needing to be bent, then locally heating the bent position, and then bending the acrylic plate.

In view of the above-mentioned related technologies, the inventor believes that the acrylic plate bending process often needs to be completed by multiple devices in sequence, and the process steps are complex and inconvenient.

Disclosure of Invention

In order to simplify the processing step of bending of ya keli board, this application provides an ya keli board processingequipment that bends.

The application provides a pair of ya keli board processingequipment that bends adopts following technical scheme:

the utility model provides an inferior gram force board processingequipment that bends, includes steam heating mechanism, cuts groove mechanism, tectorial membrane mechanism and the actuating mechanism that bends, steam heating mechanism includes steam chest and work panel, the steam chest is equipped with the heating notch, work panel is provided with two along heating notch symmetry, and the one end that work panel is close to the heating notch is rotated and is set up on the steam chest, cut groove mechanism and tectorial membrane mechanism and all establish at heating notch department, cut groove mechanism and be used for cutting the groove to one side of inferior gram force board, tectorial membrane mechanism is used for the opposite side tectorial membrane to the pressure plate, the actuating mechanism that bends establishes the below at work panel, the actuating mechanism that bends orders about the upset of work panel and makes inferior gram force board bend along the direction that is close to cutting groove one side.

By adopting the technical scheme, the acrylic plate is clamped and fixed between the two working panels through the clamping mechanism, and the film is coated on one side of the acrylic plate close to the working table top through the film coating mechanism; then, a grooving mechanism is used for grooving one side of the acrylic plate, which is far away from the working table top, then the acrylic plate is locally heated at a heating groove opening through a steam box, and then the acrylic plate is bent and formed along the direction close to one side of the grooving through a bending driving mechanism, so that the steps are simple, and the operation is convenient; the groove cutting step enables the bending part not to generate stress concentration easily, the local heating step enables the bending part to be softened so as to be bent conveniently, and the film coating step improves the anti-tearing effect of the bending part so that the bending part is not prone to breaking.

Optionally, be equipped with the fixture that is used for carrying out the centre gripping to the ya keli board on the work panel, fixture is including setting firmly the first compression roller subassembly that is close to heating notch one end at the work panel and sliding the second compression roller subassembly that sets up and keep away from heating notch one end at the work panel.

By adopting the technical scheme, the acrylic plate can be fixed between the two working panels through the compression action of the first compression roller assembly and the second compression roller assembly, so that the subsequent steps of groove cutting, film coating, local heating and bending can be conveniently unfolded; through the regulation to the distance between first compression roller subassembly and the second compression roller subassembly, can make fixture can carry out the centre gripping to the ya keli board of different length.

Optionally, the grooving mechanism includes grooving cutter, grooving driving motor and lead screw slip table subassembly, lead screw slip table subassembly strides and establishes on the work panel, and lead screw slip table subassembly sets up along the length direction of heating the notch, grooving driving motor fixes on the slip table of lead screw slip table subassembly, the grooving cutter is established at grooving driving motor's output, the terminal surface of grooving cutter parallels with the moving direction of slip table.

Through adopting above-mentioned technical scheme, when lead screw slip table subassembly ordered about the slip table and slided, can drive cut groove driving motor and slide along the length direction who heats the notch to reach the purpose of cutting the groove to the ya keli board.

Optionally, the laminating device comprises a raw material roller and a traction roller, the raw material roller and the traction roller are both rotatably arranged on the steam box, and the raw material roller and the traction roller are respectively arranged at two ends of the heating notch in the length direction.

By adopting the technical scheme, the self-adhesive tension-resistant coiled material is tensioned at the heating notch by the raw material roller and the traction roller, and the bonding surface of the self-adhesive tension-resistant coiled material is arranged on one side far away from the working panel; at the moment, the acrylic plate is placed between the two working panels, and the self-adhesive tension-resistant coiled material can be adhered to one side, close to the working panels, of the acrylic plate.

Optionally, the raw material roller and the traction roller are both arranged below the working panel, the steam box is provided with guide rollers above the raw material roller and the traction roller, and the roller surface of each guide roller is tangent to one side of the working panel far away from the steam box.

Through adopting above-mentioned technical scheme, the guide roll is used for leading to self-adhesion type strain insulator coiled material's tensioning setting to lay self-adhesion type strain insulator coiled material in heating notch department smoothly, thereby the bonding of self-adhesion type strain insulator coiled material and ya li ke board of being convenient for is fixed.

Optionally, the steam box is provided with a heat insulation cavity below the working panel, the bending driving mechanism comprises a telescopic cylinder arranged in the heat insulation cavity, one end of the telescopic cylinder is rotatably arranged on the wall of the heat insulation cavity, and the other end of the telescopic cylinder is rotatably arranged at one end of the working panel far away from the heating notch.

Through adopting above-mentioned technical scheme, when telescopic cylinder's output extended, can order about work panel along the direction upset of keeping away from the steam chest to reach the purpose of buckling to the ya keli board.

Optionally, the steam chest can be dismantled near the one end of working panel and be provided with the case lid, during the upset of working panel, the one end that the heating notch was kept away from to the working panel slides and sets up on the inside wall of case lid, grooving mechanism, tectorial membrane mechanism and the actuating mechanism that bends all establish in the case lid.

By adopting the technical scheme, when the working panel is turned over, steam is not easy to leak from the steam box, the working panel is abutted against the inner side wall of the box cover, so that the steam still can only reach the space above the working panel through the heating notch, and the non-bending part of the acrylic plate is not easy to heat and soften; and the inside wall of case lid can form the direction to the rotation of working panel, so the process of bending of ya keli board is more steady smooth and easy.

Optionally, a heat insulation layer is arranged on one side, close to the steam box, of the working panel, a flanging is arranged at one end, close to the heating notch, of the heat insulation layer, and the flanging is arranged on the side wall of the heating notch.

Through adopting above-mentioned technical scheme, insulating layer and turn-ups are used for keeping warm and insulating heat to make the work panel be difficult for directly conducting the heat of steam, thereby reach the purpose of carrying out the local heating to the ya keli board.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the acrylic plate is clamped and fixed between the two working panels through the clamping mechanism, and the film is coated on one side, close to the working table top, of the acrylic plate through the film coating mechanism; then, a grooving mechanism is used for grooving one side of the acrylic plate, which is far away from the working table top, then the acrylic plate is locally heated at a heating groove opening through a steam box, and then the acrylic plate is bent and formed along the direction close to one side of the grooving through a bending driving mechanism, so that the steps are simple, and the operation is convenient;

2. through setting up the case lid for when the work panel turns over and turns over, steam is difficult for revealing from the steam chest in, with the local heating effect to the ya keli board that improves.

Drawings

FIG. 1 is a schematic structural diagram of an entire bending device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the bending apparatus according to the embodiment of the present application taken along the width direction of the heating slot;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a method diagram of section B of FIG. 1;

FIG. 5 is a sectional view of the bending apparatus according to the embodiment of the present application, taken along the longitudinal direction of the heating slot.

Description of reference numerals: 1. a steam heating mechanism; 11. a steam box; 111. a resistance wire; 112. heating the notch; 113. a thermally insulating cavity; 114. a support; 115. an elastic sealing plate; 12. a working panel; 13. a box cover; 121. a thermal insulation layer; 122. flanging; 123. a slide rail; 2. a clamping mechanism; 21. a first press roll assembly; 22. a second press roll assembly; 23. a roller base; 231. an adjustment hole; 232. locking the bolt; 233. penetrating a groove; 24. a rotating roller; 3. a grooving mechanism; 31. a groove cutting knife; 32. a slot cutting driving motor; 33. a lead screw sliding table assembly; 34. a support plate; 4. a film covering mechanism; 41. a raw material roller; 42. a traction roller; 43. a guide roller; 5. a bending driving mechanism; 51. a telescopic cylinder.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses inferior gram force board processingequipment that bends. Referring to fig. 1 and 2, the acrylic plate bending device includes a steam heating mechanism 1, a clamping mechanism 2, a grooving mechanism 3, a film coating mechanism 4, and a bending drive mechanism 5.

The steam heating mechanism 1 is fixedly arranged on the ground, and the steam heating mechanism 1 is used for locally heating the acrylic plate. Fixture 2, grooving mechanism 3, tectorial membrane mechanism 4 and the actuating mechanism 5 of bending establish on steam heating mechanism 1, and wherein fixture 2 is used for carrying out the centre gripping to the ya keli board, and grooving mechanism 3 is used for carrying out the grooving to one side of ya keli board, and tectorial membrane mechanism 4 is used for carrying out the tectorial membrane to the opposite side of ya keli board, and actuating mechanism 5 of bending is used for ordering about the ya keli board and bends along the direction that is close to grooving one side.

Referring to fig. 1 and 2, the steam heating mechanism 1 includes a steam box 11 and a work panel 12. The steam box 11 has a structure in which one end is closed and the other end is open. The steam box 11 is used as a steam supply source, the resistance wire 111 is fixedly arranged in the steam box 11, and after the clean water is stored in the steam box 11, the resistance wire 111 can heat the stored water to raise the temperature so as to form steam.

A working panel 12 is provided at the open end of the steam box 11. Working panel 12 is the rectangular plate, and working panel 12 is side by side and the interval sets up, and the one end that two working panel 12 are close to each other all articulates on the inside wall of steam box 11 open end. The area between the two work panels 12 forms a heating slot 112, and the two work panels 12 are symmetrically disposed along the heating slot 112. After the steam box 11 is started, the steam in the steam box 11 is discharged from the heating slot 112. The acrylic plate is fixedly arranged between the two working panels 12, so that the steam can heat the local part of the acrylic plate.

Referring to fig. 2 and 3, a thermal insulation layer 121 is fixed on one side of the working panel 12 close to the closed end of the steam box 11. The thermal insulation layer 121 can be made of an XPS board, the size of the thermal insulation layer 121 is the same as that of the working panel 12, a flange 122 is arranged at one end of the thermal insulation layer 121 close to the heating slot 112, and the flange 122 is fixed on the side wall of the heating slot 112. The heat insulation layer 121 and the turned-over edge 122 are used for heat preservation and heat insulation, so that the working panel 12 is not easy to directly conduct heat of steam, and the aim of locally heating the acrylic plate is fulfilled.

Referring to fig. 1 and 2, the fixture 2 is secured to the work panel 12. Fixture 2 includes first compression roller subassembly 21 and second compression roller subassembly 22, and first compression roller subassembly 21 sets firmly in the one end that work panel 12 is close to heating notch 112, and second compression roller subassembly 22 slides and sets up the one end of keeping away from heating notch 112 at work panel 12.

Referring to fig. 1 and 4, each of the first and second platen roller assemblies 21 and 22 includes a roller base 23 and a rotating roller 24, the roller shafts are provided at both ends of the rotating roller 24, and the rotating roller 24 is rotatably provided on the roller base 23. The roller seat 23 is provided with an adjusting hole 231 for the rotating roller 24 to slide along the direction perpendicular to the working panel 12, and the aim of clamping the acrylic plate can be achieved by adjusting the distance between the rotating roller 24 and the working panel 12. The roll shaft of the rotating roll 24 penetrates through the adjusting hole 231 and is in threaded connection with a locking bolt 232, and the rotating roll 24 can be locked on the roll seat 23 by the locking bolt 232 abutting against the roll seat 23, so that the inferior gram force plate is fixed conveniently.

Referring to fig. 1 and 4, the roller seat 23 of the first roller assembly 21 is fixedly connected with the working panel 12, and the roller seat 23 of the second roller assembly 22 is slidably connected with the working panel 12. The end of the working panel 12 away from the heating slot 112 is fixed with a slide rail 123, and the slide rail 123 corresponds to the roller seat 23 of the second pressing roller assembly 22 one by one. The slide rail 123 may be configured in a dovetail shape, and a large end of the slide rail 123 is an end far away from the working panel 12, and a small end of the slide rail 123 is an end close to the working panel 12.

The roller seat 23 of the second roller assembly 22 is provided with a through groove 233 for the slide rail 123 to penetrate through, and the shape of the through groove 233 is the same as that of the slide rail 123, so that the roller seat 23 of the second roller assembly 22 is connected with the slide rail 123 in a sliding manner. By adjusting the position of the roller seat 23 of the second roller assembly 22 on the slide rail 123, the distance between the first roller assembly 21 and the second roller assembly 22 can be adjusted, so that the clamping mechanism 2 can clamp acrylic plates with different lengths.

Referring to fig. 1 and 2, the grooving mechanism 3 includes a grooving cutter 31, a grooving drive motor 32, and a screw sliding table assembly 33. The screw slide table assembly 33 is disposed astride the work panel 12, and the screw slide table assembly 33 is disposed along the length direction of the heating notch 112. The screw slide table assembly 33 is disposed directly above one of the work panels 12 via a support plate 34. The slot-cutting driving motor 32 is fixed on the sliding table of the screw sliding table assembly 33, and the slot-cutting cutter 31 is fixed at the output end of the slot-cutting driving motor 32. The grooving cutter 31 is driven by the grooving driving motor 32 to rotate so as to groove the side of the acrylic plate far away from the working panel 12. The slot cutter 31 should be spaced from the working surface plate 12 to prevent the acrylic plate from being cut. When lead screw slip table subassembly 33 ordered about the slip table and slided, can drive cut groove driving motor 32 and slide along the length direction of heating notch 112 to reach the purpose of cutting the groove to the ya keli board.

Referring to fig. 1 and 5, the laminating mechanism 4 includes a stock roll 41 and a pulling roll 42. The raw material roller 41 and the drawing roller 42 are rotatably arranged on the outer side wall of the steam box 11, and the raw material roller 41 and the drawing roller 42 are respectively arranged at two ends of the heating notch 112 in the length direction. The material roller 41 is used for fixing and supplying the self-adhesive tension coil material with high temperature resistance, and the traction roller 42 is used for oppositely pulling and rolling the self-adhesive tension coil material, so that the self-adhesive tension coil material is tensioned and arranged at the heating notch 112. The width of the self-adhesive tension-resistant coiled material is required to be sufficient for sealing the heating notch 112; after the self-adhesive tension-resistant coiled material is tensioned, the adhesive surface of the self-adhesive tension-resistant coiled material is arranged on one side far away from the working panel 12, and the acrylic plate is placed between the two working panels 12, so that the self-adhesive tension-resistant coiled material can be adhered to one side, close to the working panel 12, of the acrylic plate.

The raw material roller 41 and the drawing roller 42 are both arranged below the working panel 12, and the steam box 11 is rotatably provided with guide rollers 43 above the raw material roller 41 and the drawing roller 42. The self-adhesive tension coil is sequentially wound among the raw material roller 41, the guide roller 43 close to the drawing roller 42 and the drawing roller 42. The roller surfaces of the guide rollers 43 are tangent to the side of the working panel 12 remote from the steam box 11, so that the self-adhesive tension coil can be kept horizontal between the two guide rollers 43 and abut against the working panel 12. The guide roller 43 is used for guiding the tensioning setting of the self-adhesion type strain insulator coiled material so as to smoothly lay the self-adhesion type strain insulator coiled material at the heating notch 112, thereby facilitating the bonding fixation of the self-adhesion type strain insulator coiled material and the acrylic plate.

Referring to fig. 2, the bending driving mechanism 5 includes telescopic cylinders 51, the telescopic cylinders 51 correspond to the working panels 12 one by one, and the steam box 11 is provided with a heat insulation chamber 113 for fixing the telescopic cylinders 51 below the working panels 12. The cylinder seat of the telescopic cylinder 51 is hinged on the wall of the heat insulation cavity 113, and the wall of the heat insulation cavity 113 is provided with a support 114 for supporting the cylinder seat of the telescopic cylinder 51. The output of telescopic cylinder 51 stretches out thermal-insulated chamber 113 and articulates and keeps away from one of heating notch 112 at work panel 12 and serves, and when telescopic cylinder 51's output extended, can order about work panel 12 along the direction upset of keeping away from steam chest 11 to reach the purpose of buckling to the ya keli board.

The side wall of the heat insulation cavity 113 is provided with a sliding groove at the penetrating position of the output end of the telescopic cylinder 51, and the output end of the telescopic cylinder 51 slides in the sliding groove when being telescopic. An elastic sealing plate 115 is fixed on the side wall of the chute, and the elastic sealing plate 115 is made of heat-insulating material, such as composite rubber material, so that when the output end of the telescopic cylinder 51 slides, the heat-insulating cavity 113 can still keep a good sealing effect.

Referring to fig. 1 and 2, when the work panel 12 is folded, steam is less likely to leak from the steam box 11. The steam box 11 is provided with a box cover 13 at one end close to the working panel 12, the box cover 13 is detachably arranged on the opening end of the steam box 11, and in the embodiment, the opening end of the steam box 11 is embedded on the box cover 13. When the working panel 12 overturns, the end of the working panel 12 far away from the heating notch 112 is always abutted against the inner side wall of the box cover 13, and the end of the working panel 12 far away from the heating notch 112 is slidably arranged on the side wall of the box cover 13, namely, the longitudinal sections of the two ends of the box cover 13 are both arc-shaped. The grooving mechanism 3, the film coating mechanism 4 and the bending driving mechanism 5 are all arranged in the box cover 13.

The implementation principle of the acrylic plate bending device in the embodiment of the application is as follows: during specific processing, the box cover 13 is taken down from the steam box 11, the raw material barrel of the self-adhesion type strain coil is fixed on the raw material roller 41, then the self-adhesion type strain coil is sequentially wound on the two guide rollers 43 and the traction roller 42, and the self-adhesion type strain coil is tensioned at the heating notch 112. Then, the rotating rollers 24 of the first pressing roller assembly 21 and the second pressing roller assembly 22 are driven to be far away from the working panel 12, the acrylic plate is placed on the working panel 12, and then the rotating rollers 24 press the acrylic plate tightly, so that the acrylic plate is fixed between the two working panels 12, and the self-adhesive tension coil is fixedly bonded on one side, close to the working panel 12, of the acrylic plate.

Then, the screw rod sliding table assembly 33 and the slot cutting driving motor 32 are started, the sliding table slides along the length direction of the heating slot opening 112 and drives the slot cutting driving motor 32 to slide, and the slot cutting driving motor 32 drives the slot cutting knife 31 to rotate and cut slots on the acrylic plate. Then cover 13 with the case lid and close and fix on steam chest 11 to start steam chest 11 for resistance wire 111 heats the retaining evaporation in steam chest 11 and produces steam, and steam carries out local heating to the inferior gram force board when discharging from heating notch 112 and corresponds the position at heating notch 112. After the local softening of inferior gram force board, the output of telescopic cylinder 51 extends, drives work panel 12 and rotates to the inferior gram force board on work panel 12 carries out bending molding.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.