Auxiliary sealing strip equipment for acrylic plate pouring

Abstract

The utility model relates to the technical field of acrylic plate pouring, in particular to auxiliary sealing strip equipment for acrylic plate pouring. According to the technical scheme, the device comprises a lifting motor, a mold and a lifting plate, a fixing ring is fixedly installed in the mold, the lifting plate is arranged in the mold, an annular groove is formed in the outer surface of the lifting plate, an air bag ring is arranged in the annular groove, and an air cylinder is fixedly installed at the position, located below the lifting plate, of one side in the mold; a connecting pipe is fixedly connected to the inner side of the air cylinder, a plurality of branch pipes are fixedly connected to the tail end of the connecting pipe, and the tail ends of the branch pipes are fixedly connected to the outer surface of the air bag ring. In the pouring process of the acrylic plate, the gap between the assembly molds is effectively filled and sealed through the expanded air bag ring, when the assembly molds are separated for demolding, the air bag ring is contracted, abrasion of the air bag ring is avoided, the service life and the replacement period of the air bag ring are prolonged, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of acrylic sheet casting technology, specifically to an auxiliary sealing strip device for acrylic sheet casting. Background Technology

[0002] Casting is a production process for acrylic sheets. The principle is to melt acrylic (PMMA, polymethyl methacrylate) raw materials at high temperature, inject them into a mold, and then cool and solidify them to obtain acrylic sheets.

[0003] In the current acrylic sheet casting process, the gaps between the assembled molds need to be filled and sealed with adhesive strips. However, the adhesive strips are prone to wear due to friction during long-term use, which reduces the sealing performance and requires frequent replacement, thus reducing production efficiency. To address this, we propose an auxiliary sealing strip device for acrylic sheet casting. Utility Model Content

[0004] The purpose of this invention is to provide an auxiliary sealing device for acrylic sheet casting. During the acrylic sheet casting process, an expanding airbag ring effectively fills and seals the gaps between the assembly molds. Furthermore, when the assembly molds are separated and demolded, the airbag ring contracts, preventing wear and extending its service life and replacement cycle, thus improving production efficiency. This invention solves the problem that in current acrylic sheet casting production, the gaps between the assembly molds need to be filled and sealed with adhesive strips, but these strips are prone to wear due to friction over long-term use, reducing sealing performance and requiring frequent replacement, which lowers production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary sealing strip device for acrylic sheet casting, comprising a lifting motor, a mold, and a lifting plate. A fixing ring is fixedly installed inside the mold, and a lifting plate is provided inside the mold. An annular groove is provided on the outer surface of the lifting plate, and an air bladder ring is provided inside the annular groove. An air cylinder is fixedly installed on one side of the mold below the lifting plate. A connecting pipe is fixedly connected to the inner side of the air cylinder. Several branch pipes are fixedly connected to the end of the connecting pipe, and the ends of the branch pipes are fixedly connected to the outer surface of the air bladder ring. A hydraulic cylinder is fixedly installed on the outer surface of the mold near the air cylinder. A piston plate is fixedly connected to the output end of the hydraulic cylinder, and the piston plate is located inside the air cylinder.

[0006] Preferably, the length and width dimensions of the lifting plate are smaller than the inner length and width dimensions of the fixing ring.

[0007] Preferably, a bidirectional lead screw is rotatably installed inside the mold below the fixed ring. Threaded sliders are movably sleeved on the outer surface of the bidirectional lead screw near both ends. Two rotating connecting rods are rotatably connected to the upper surfaces of the two threaded sliders, and the ends of the four rotating connecting rods are rotatably connected to the lower surface of the lifting plate near the four corners.

[0008] Preferably, limit baffles are fixedly installed at the bottom of the inner wall of the mold near the front and rear surfaces of the threaded slider.

[0009] Preferably, a lifting motor is fixedly installed on one side of the outer surface of the mold, and the end of the output shaft of the lifting motor is fixedly connected to the end of the bidirectional lead screw.

[0010] Preferably, a communication port is provided on the outer surface of the air cylinder near the hydraulic cylinder.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting up a mold, a fixing ring, a lifting plate, an annular groove, an airbag ring, a connecting pipe, a branch pipe, an air cylinder, a hydraulic cylinder, and a piston plate, achieves the effect of effectively filling and sealing the gaps between the assembled molds during the acrylic sheet casting process through the expanding airbag ring. Furthermore, when the assembled molds are separated for demolding, the airbag ring contracts, preventing wear and extending its service life and replacement cycle, thus improving production efficiency. The hydraulic cylinder drives the piston plate to move towards the hydraulic cylinder, drawing air from inside the airbag ring into the air cylinder, causing the airbag ring to contract and enter the annular groove. The lifting plate then rises and enters the fixing ring. After the hydraulic cylinder moves the piston plate towards the connecting pipe, it pushes the air inside the air cylinder into the airbag ring, causing the airbag ring to expand and fill and seal the gap between the lifting plate and the fixed ring. The mold is then positioned above the fixed ring and the lifting plate to form a mold cavity. Molten acrylic material is poured into the mold cavity. After the acrylic material cools and solidifies, it becomes an acrylic sheet. The airbag ring contracts in the same way. During the descent of the lifting plate, the lifting plate and the acrylic sheet separate due to the support of the fixed ring. After the acrylic sheet and the lifting plate separate, the lifting plate can rise again and pass through the fixed ring to push the acrylic sheet out of the mold, completing the demolding of the acrylic sheet.

[0013] 2. This utility model achieves the effect of stable lifting of the lifting plate by setting a bidirectional lead screw, a threaded slider, a rotating connecting rod and a lifting motor. The lifting motor drives the bidirectional lead screw to rotate and drives the two threaded sliders to move in opposite directions. During the movement, the two threaded sliders drive the lifting plate to move stably through the rotating connecting rod. Attached Figure Description

[0014] Figure 1This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a partial three-dimensional structural diagram of the mobile motor of this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the hydraulic cylinder of this utility model;

[0017] Figure 4 This is a schematic diagram of the main cross-sectional structure of this utility model.

[0018] Reference numerals: 1. Lifting motor; 2. Mold; 3. Fixing ring; 4. Lifting plate; 5. Hydraulic cylinder; 6. Two-way lead screw; 7. Threaded slider; 8. Rotating connecting rod; 9. Annular groove; 10. Airbag ring; 11. Air cylinder; 12. Connecting pipe; 13. Branch pipe; 14. Connecting port; 15. Piston plate; 16. Limiting baffle. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1

[0021] like Figures 1-4 As shown, this utility model proposes an auxiliary sealing strip device for acrylic sheet casting, including a lifting motor 1, a mold 2, and a lifting plate 4. A fixing ring 3 is fixedly installed inside the mold 2. The space inside the mold 2 above the fixing ring 3 is the acrylic sheet forming cavity. The lifting plate 4 is set inside the mold 2. The length and width dimensions of the lifting plate 4 are smaller than the internal length and width dimensions of the fixing ring 3, so the lifting plate 4 can enter and pass through the fixing ring 3. An annular groove 9 is provided on the outer surface of the lifting plate 4, and an airbag ring 10 is provided inside the annular groove 9. Inside the mold 2, an air cylinder 11 is fixedly installed on one side below the lifting plate 4. A connecting pipe 12 is fixedly connected to the inside of the air cylinder 11. Several branch pipes 13 are fixedly connected to the end of the connecting pipe 12, and the ends of the branch pipes 13 are fixedly connected to the outer surface of the airbag ring 10. A hydraulic cylinder 5 is fixedly installed on the outer surface of the mold 2 near the air cylinder 11. A piston plate 15 is fixedly connected to the output end of the hydraulic cylinder 5, and the piston plate 15 is located inside the air cylinder 11. A connecting port 14 is provided on the outer surface of the air cylinder 11 near the hydraulic cylinder 5.

[0022] In use, the hydraulic cylinder 5 drives the piston plate 15 to move towards the hydraulic cylinder 5, thus drawing air from inside the airbag ring 10 into the air cylinder 11. This causes the airbag ring 10 to contract and enter the annular groove 9. After the lifting plate 4 rises and enters the fixed ring 3, the hydraulic cylinder 5 drives the piston plate 15 to move towards the connecting pipe 12, thus pushing air from inside the air cylinder 11 into the airbag ring 10. This causes the airbag ring 10 to expand and fill the gap between the lifting plate 4 and the fixed ring 3. To seal the mold, mold 2 is positioned above fixed ring 3 and lifting plate 4 to form a mold cavity. Molten acrylic material is poured into the mold cavity. After the acrylic material cools and solidifies, it becomes an acrylic sheet. Similarly, airbag ring 10 contracts. During the descent of lifting plate 4, due to the support of fixed ring 3 on the acrylic sheet, lifting plate 4 and acrylic sheet separate. After the acrylic sheet and lifting plate 4 separate, lifting plate 4 can rise again and pass through fixed ring 3 to push the acrylic sheet out of the mold 2, thus completing the demolding of the acrylic sheet.

[0023] Example 2

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the auxiliary sealing strip device for acrylic sheet casting proposed in this utility model, compared with the first embodiment, further includes a bidirectional lead screw 6 rotatably installed inside the mold 2 below the fixed ring 3. The bidirectional lead screw 6 and the mold 2 are rotatably connected by bearings. Threaded sliders 7 are movably sleeved on the outer surface of the bidirectional lead screw 6 near both ends. The threads on the inner wall of the threaded sliders 7 mesh with the threads on the outer surface of the bidirectional lead screw 6. Two rotating connecting rods 8 are rotatably connected to the upper surfaces of the two threaded sliders 7, and the ends of the four rotating connecting rods 8 are respectively rotatably connected to the lower surface of the lifting plate 4 near the four corners. The rotating connecting rods 8, threaded sliders 7, and lifting plate 4 are all rotatably connected by rotating shafts. Limiting baffles 16 are fixedly installed at the bottom of the inner wall of the mold 2 near the front and rear surfaces of the threaded sliders 7. The limiting baffles 16 limit the sliding of the threaded sliders 7. A lifting motor 1 is fixedly installed on one side of the outer surface of the mold 2, and the end of the output shaft of the lifting motor 1 is fixedly connected to the end of the bidirectional lead screw 6.

[0025] In this embodiment, the lifting motor 1 drives the bidirectional lead screw 6 to rotate and drives the two threaded sliders 7 to move in opposite directions or in the opposite direction. During the movement, the two threaded sliders 7 drive the lifting plate 4 to rise and fall stably through the rotating connecting rod 8.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An auxiliary sealing device for acrylic sheet casting, comprising a lifting motor (1), a mold (2), and a lifting plate (4), characterized in that: A fixing ring (3) is fixedly installed inside the mold (2). A lifting plate (4) is provided inside the mold (2). An annular groove (9) is provided on the outer surface of the lifting plate (4), and an airbag ring (10) is provided inside the annular groove (9). An air cylinder (11) is fixedly installed on one side of the mold (2) below the lifting plate (4). A connecting pipe (12) is fixedly connected to the inner side of the air cylinder (11). Several branch pipes (13) are fixedly connected to the end of the connecting pipe (12), and the end of the branch pipes (13) is fixedly connected to the outer surface of the airbag ring (10). A hydraulic cylinder (5) is fixedly installed on the outer surface of the mold (2) near the air cylinder (11). A piston plate (15) is fixedly connected to the output end of the hydraulic cylinder (5), and the piston plate (15) is located inside the air cylinder (11).

2. The auxiliary sealing strip device for acrylic sheet casting according to claim 1, characterized in that: The length and width dimensions of the lifting plate (4) are smaller than the internal length and width dimensions of the fixing ring (3).

3. The auxiliary sealing strip device for acrylic sheet casting according to claim 1, characterized in that: Inside the mold (2), a bidirectional lead screw (6) is rotatably installed below the fixed ring (3). Threaded sliders (7) are movably sleeved on the outer surface of the bidirectional lead screw (6) near both ends. Two rotating connecting rods (8) are rotatably connected to the upper surfaces of the two threaded sliders (7), and the ends of the four rotating connecting rods (8) are rotatably connected to the lower surface of the lifting plate (4) near the four corners.

4. The auxiliary sealing strip device for acrylic sheet casting according to claim 3, characterized in that: Limiting baffles (16) are fixedly installed at the bottom of the inner wall of the mold (2) near the front and rear surfaces of the threaded slider (7).

5. The auxiliary sealing strip device for acrylic sheet casting according to claim 3, characterized in that: A lifting motor (1) is fixedly installed on one side of the outer surface of the mold (2), and the end of the output shaft of the lifting motor (1) is fixedly connected to the end of the bidirectional lead screw (6).

6. The auxiliary sealing strip device for acrylic sheet casting according to claim 1, characterized in that: The outer surface of the air cylinder (11) is provided with a communication port (14) on the side near the hydraulic cylinder (5).

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