Acrylic plate bending device

Abstract

The utility model discloses an acrylic plate bending device, and belongs to the technical field of acrylic plate machining. The device comprises a rack, an upper die, a lower die and a lifting driver used for driving the upper die to ascend and descend, the lifting driver is installed on the rack, a connecting plate is welded to the output end of the lifting driver, a plurality of stepped holes are formed in the upper die and the lower die, and the stepped holes are connected with the connecting plate in a welded mode. A plurality of connecting holes are formed in the connecting plate and the rack; and the connecting holes are connected with the stepped holes through bolts. The bolts penetrate through the stepped holes and the connecting holes, the nuts are connected with the bolts, the upper die can be fixed to the connecting plate, the lower die can be fixed to the rack, the stepped holes are formed, the bolts are prevented from interfering with pressing of materials by the upper die and the lower die, and the forming effect of the materials is ensured. Materials are placed on the lower die, and the lifting driver can drive the upper die to ascend and descend so that the upper die and the lower die can jointly conduct compression molding on the materials.

Description

Technical Field

[0001] This application relates to the field of acrylic sheet processing technology, and in particular to an acrylic sheet bending device. Background Technology

[0002] Acrylic sheets, also known as plexiglass, are a high-performance polymer material based on polymethyl methacrylate (PMMA). Acrylic sheets have advantages such as good weather resistance, high transparency, and good impact resistance, and are widely used in construction, advertising, and home furnishing.

[0003] Patent CN220742112U discloses an acrylic heating and bending device. In this device, two bending hot pressing blocks are set up at the top and bottom. The two hot pressing blocks can bend the acrylic sheet. Regarding the above technology, the applicant believes that the following problems exist: different customers have different needs and need to heat press the acrylic sheet into different shapes. The bending hot pressing blocks in the device are inconvenient to disassemble, which makes it inconvenient for workers to disassemble and replace the bending hot pressing blocks. Utility Model Content

[0004] The purpose of this application is to address the aforementioned problems existing in the prior art by proposing an acrylic sheet bending device.

[0005] This application can be achieved through the following technical solution: an acrylic sheet bending device, including a frame, an upper mold, a lower mold, and a lifting driver for driving the upper mold to rise and fall. The lifting driver is mounted on the frame, and a connecting plate is welded to the output end of the lifting driver. Several stepped holes are opened on both the upper mold and the lower mold. Several connecting holes are opened on both the connecting plate and the frame. The connecting holes are connected to the stepped holes by bolts.

[0006] In the above technical solution, bolts are inserted through stepped holes and connecting holes, and nuts are connected to the bolts. The upper mold can be fixed to the connecting plate, and the lower mold can be fixed to the frame. By setting stepped holes, the bolts are prevented from interfering with the pressing of the material by the upper and lower molds, ensuring the forming effect of the material. When the material is placed on the lower mold, the lifting driver can drive the upper mold to rise and fall so that the upper and lower molds can jointly press and form the material.

[0007] Furthermore, it also includes a fixing belt, a through hole is provided on the lower mold, the fixing belt passes through the through hole and is wrapped around the material, the two ends of the fixing belt in the length direction are connected by a connector, and a relief groove is provided on the upper mold for the fixing belt to be embedded.

[0008] In the above technical solution, when the material cannot be placed stably on the lower mold, the fixing belt can be inserted through the insertion hole and wrapped around the unheated part of the material. Then, the two ends of the fixing belt in the length direction are connected together by the connector, so that the fixing belt can press the material horizontally on the lower mold.

[0009] Furthermore, the connector is a clip.

[0010] In the above technical solution, the two ends of the fixing belt in the length direction can be connected together by clamping the clips.

[0011] Furthermore, it also includes a pressing block, on which an insert is formed. The pressing block can contact the upper surface of the material. The insert is horizontally arranged. The lower mold sidewall has an insertion hole for inserting the insert, and the upper mold has an embedding groove for embedding the pressing block.

[0012] In the above technical solution, the insert block is inserted into the insertion hole in the horizontal direction. At this time, the lower surface of the pressure block abuts against the upper surface of the material, so that the pressure block presses the material horizontally on the lower mold.

[0013] Furthermore, the pressing block includes a mounting block and a rubber pad disposed on the mounting block and capable of contacting the material.

[0014] In the above technical solution, by setting a rubber pad, the rubber pad exerts greater friction on the material compared to a smooth surface, thereby making the material more stable.

[0015] Furthermore, it also includes a heater, a placement platform, and a vertical drive for driving the heater close to the upper surface of the placement platform. The placement platform is used to place materials, and a limiting block for limiting the movement of the materials is provided on the placement platform.

[0016] In the above technical solution, the vertical drive can drive the heater to descend so that the heater can contact the material and heat the part of the material that needs to be bent, and the set limit block can limit the material so that the position of each material is consistent.

[0017] Furthermore, a through hole is provided on the limiting block, through which an insertion rod is inserted. Several adjustment holes are provided on the frame, and the adjustment holes are arranged horizontally. The through hole and one adjustment hole are for inserting an insertion rod.

[0018] In the above technical solution, after inserting the rod through the through hole, the rod can be inserted into different adjustment holes to change the position of the limiting block relative to the heater.

[0019] Furthermore, it also includes several suction ends, which are located around the lower mold.

[0020] In the above technical solution, the dust suction end can remove dust located around the lower mold, thus making it difficult for dust to adhere to the heated part of the material.

[0021] In summary, this application has the following technical advantages: By inserting bolts through stepped holes and connecting holes, and connecting nuts to bolts, the upper mold can be fixed on the connecting plate, and the lower mold can be fixed on the frame. The stepped holes prevent bolts from interfering with the pressing of the material by the upper and lower molds, ensuring the material's forming effect. When the material is placed on the lower mold, the lifting driver can drive the upper mold to rise and fall so that the upper and lower molds work together to press and shape the material. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0023] Figure 2 yes Figure 1 Enlarged view of the structure of region A in the middle;

[0024] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0025] Figure 4 This is a schematic diagram of the location of the slot in this application;

[0026] Figure 5 This is a schematic diagram showing the location of the insert block in this application;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Frame; 2. Upper mold; 21. Leaving groove; 22. Insert groove; 3. Lower mold; 31. Through hole; 32. Insertion hole; 4. Lifting drive; 5. Connecting plate; 6. Stepped hole; 8. Bolt; 9. Fixing strap; 10. Connector; 11. Pressure block; 111. Mounting block; 112. Rubber pad; 12. Insertion block; 13. Heater; 14. Placement platform; 15. Vertical movement drive; 16. Limiting block; 161. Through hole; 17. Insert rod; 18. Adjustment hole; 19. Dust suction end. Detailed Implementation

[0029] Example 1:

[0030] Reference Figure 1One embodiment of this application provides an acrylic sheet bending device, including a frame 1. A lifting driver 4 is mounted on the frame 1. The lifting driver 4 can be any of a hydraulic cylinder, oil cylinder, or pneumatic cylinder. A connecting plate 5 is welded to the output end of the lifting driver 4. The connecting plate 5 has four connecting holes and an upper mold 2 is mounted on the connecting plate 5. A lower mold 3 is also mounted on the frame 1, located below the upper mold 2. Both the upper mold 2 and the lower mold 3 have four stepped holes 6, which are connected to the connecting holes by bolts 8 to fix the upper mold 2 relative to the connecting plate 5. The frame 1 also has four connecting holes. The lower mold 3 is fixed to the frame 1 and connected to the connecting holes on the frame 1 via the stepped holes 6 and bolts 8. The lifting driver 4 drives the upper mold 2 to move downwards, causing it to slide vertically close to the lower mold 3, thereby hot-pressing and bending the material into a predetermined shape.

[0031] Reference Figure 1 , 2 The frame 1 is also equipped with a placement platform 14, which is used to place the material to be heated. In this application, the material is an acrylic sheet. The frame 1 is also equipped with a vertical movement driver 15, which can be an electric actuator, a cylinder, or a hydraulic cylinder. A heater 13 is installed on the output end of the vertical movement driver 15. The vertical movement driver 15 can drive the heater 13 to move downward, so that the heater 13 heats the part of the material that needs to be bent. A limit block 16 that can limit the material is placed on the placement platform 14. Since different customers have different needs, the position where the acrylic sheet needs to be bent is different in different orders. By setting the limit block 16 to limit the material, the heating position of the material is accurate.

[0032] Reference Figure 1 The limiting block 16 has a through hole 161 extending along its length. The frame 1 has multiple adjustment holes 18 arranged horizontally. The through hole 161 can be aligned with one adjustment hole 18. The through hole 161 and the adjustment holes 18 are used to insert a rod 17. The operator can adjust the position of the limiting block 16 according to the customer's order requirements to ensure that the heater 13 accurately heats the material.

[0033] Reference Figure 1When the material cannot be placed stably on the lower mold 3, it is dangerous to hold the material by hand. A through hole 31 is formed along the length of the lower mold 3. The through hole 31 is horizontal, and a fixing strap 9 passes through it. The fixing strap 9 can be made of a soft material, such as fabric. The fixing strap 9 passes through the through hole 31 and wraps around the material. The two ends of the fixing strap 9 are connected together by a connector 10, which can be a clamp. The upper mold 2 has a relief groove 21 that allows the fixing strap 9 to pass. The relief groove 21 contacts the upper surface of the fixing strap 9, providing clearance and ensuring the pressing effect of the upper mold 2 and lower mold 3 on the material.

[0034] Reference Figure 1 Multiple dust suction ends 19 are installed around the lower mold 3. Each dust suction end 19 is connected to a vacuum cleaner via a hose to remove dust from the area around the lower mold 3, reducing the possibility of dust adhering to the heated parts of the material during the pressing process.

[0035] The working principle of this embodiment is as follows: First, adjust the position of the limit block 16 according to the customer's needs. Then, place the material on the placement platform 14 and heat the part that needs to be bent. Then, manually place the material on the lower mold 3, pass the fixing strap 9 through the through hole 31 and around the part of the material that has not been heated, and fix the two ends of the fixing strap 9 in the length direction together through the connector 10. Then, drive the lifting driver 4 to move the upper mold 2 down so that the upper mold 2 can press the material.

[0036] Example 2:

[0037] Reference Figure 3 , 4 5. The structure and principle of this embodiment are basically the same as those of embodiment one. The difference is that an insertion hole 32 is opened on the side wall of the lower mold 3. This embodiment includes a pressing block 11. The pressing block 11 includes a mounting block 111 and a rubber pad 112 adhered to the surface of the mounting block 111. The rubber pad 112 can contact the unheated part of the upper surface of the material. An insertion block 12 is formed on the mounting block 111. The insertion block 12 is horizontally set. The insertion hole 32 is used for the insertion block 12 to be inserted. An embedding groove 22 is opened on the upper mold 2 for the pressing block 11 to be embedded. The embedding groove 22 has a clearance function for the pressing block 11 to ensure the pressing effect of the upper mold 2 and the lower mold 3 on the material.

[0038] The working principle of this embodiment is as follows: First, the material is placed on the lower mold 3. Then, the insert block 12 is inserted into the insertion hole 32 and the rubber pad 112 is placed against the unheated part of the upper surface of the material. Then, the lifting driver 4 is turned on to drive the upper mold 2 to move down so that the upper mold 2 and the lower mold 3 press the material.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An acrylic sheet bending device, characterized in that, The device includes a frame (1), an upper mold (2), a lower mold (3), and a lifting drive (4) for driving the upper mold (2) to rise and fall. The lifting drive (4) is mounted on the frame (1). A connecting plate (5) is welded to the output end of the lifting drive (4). Several stepped holes (6) are provided on both the upper mold (2) and the lower mold (3). Several connecting holes are provided on both the connecting plate (5) and the frame (1). The connecting holes and the stepped holes (6) are connected by bolts (8).

2. The acrylic sheet bending device according to claim 1, characterized in that, It also includes a fixing band (9), and a through hole (31) is provided on the lower mold (3). The fixing band (9) passes through the through hole (31) and is wrapped around the material. The two ends of the fixing band (9) in the length direction are connected by a connector (10). The upper mold (2) is provided with a relief groove (21) for the fixing band (9) to be embedded.

3. The acrylic sheet bending device according to claim 2, characterized in that, The connector (10) is a clip.

4. The acrylic sheet bending device according to claim 1, characterized in that, It also includes a pressing block (11), on which an insert (12) is formed. The pressing block (11) can contact the upper surface of the material. The insert (12) is horizontally arranged. The lower mold (3) has an insertion hole (32) for inserting the insert (12) on its side wall. The upper mold (2) has an insert groove (22) for embedding the pressing block (11).

5. The acrylic sheet bending device according to claim 4, characterized in that, The pressure block (11) includes a mounting block (111) and a rubber pad (112) disposed on the mounting block (111) and in contact with the material.

6. The acrylic sheet bending device according to claim 1, characterized in that, It also includes a heater (13), a placement platform (14) and a vertical drive (15) for driving the heater (13) close to the upper surface of the placement platform (14). The placement platform (14) is used to place materials and is provided with a limiting block (16) for limiting the material.

7. An acrylic sheet bending device according to claim 6, characterized in that, The limiting block (16) has a through hole (161) through which a rod (17) passes. The frame (1) has several adjustment holes (18) arranged horizontally. The through hole (161) and one adjustment hole (18) are for inserting a rod (17).

8. The acrylic sheet bending device according to claim 1, characterized in that, It also includes several suction ends (19), which are located around the lower mold (3).

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