Cooling mechanism of temperature-resistant plastic sheet extrusion equipment

Abstract

The utility model relates to the technical field of plastic sheet cooling, and discloses a cooling mechanism of temperature-resistant plastic sheet extrusion equipment, which comprises a cooling box, a two-way screw rod is rotatably connected between the top wall and the bottom wall in the cooling box, and the two-way screw rod is connected with the cooling box. The surface of the bidirectional screw rod is sleeved with two screw sleeves in a threaded mode, mounting frames are fixedly connected to the surfaces of the two screw sleeves, water bags are fixedly mounted in the two mounting frames, a sliding rod is fixedly connected between the top wall and the bottom wall of the interior of the cooling box, and the surface of the sliding rod is slidably sleeved with two sliding sleeves; when the cooling mechanism is used, the sheets are cooled in an air cooling mode and a liquid cooling mode, the cooling effect is better, meanwhile, the cooling mechanism can be suitable for cooling the sheets of different thicknesses, the applicability is high, the sheets can be prevented from being contaminated by dust through the external cooling box and the external dust filtering assembly, and the quality of the sheets is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic sheet cooling technology, specifically a cooling mechanism for a heat-resistant plastic sheet extrusion equipment. Background Technology

[0002] In the production of plastic sheet extrusion, the material is in the plastic stage when it is extruded by the extruder and needs to be cooled before it can be formed.

[0003] A cooling mechanism for a heat-resistant plastic sheet extrusion device, disclosed in publication CN 222451309 U, includes a water-cooled frame and a rear air-cooled frame. A pressure shaft is fixedly installed in the water-cooled frame, and liquid bladders located on the upper and lower sides of the plastic sheet are press-fitted within the water-cooled frame. The inner side of the air-cooled frame has a through groove on the plastic sheet, and mounting grooves are provided on the top and bottom sides of the air-cooled frame. A fan mount is fixedly installed in the air-cooled frame. This cooling mechanism, through the arrangement of components on the water-cooled frame and air-cooled frame, allows the liquid bladders in the water-cooled frame to directly contact the plastic sheet, utilizing the coolant filled in the liquid bladders to absorb heat from the outer side of the contacting plastic sheet, ensuring sufficient contact area and thermal conductivity.

[0004] However, the above-mentioned cooling mechanism still has some shortcomings in use. On the one hand, for plastic sheets of different thicknesses, the existing cooling equipment is difficult to flexibly adjust the spacing of the cooling components, resulting in large differences in cooling effect and low applicability. On the other hand, during the cooling process, external dust can easily enter the cooling area and adhere to the surface of the sheet, affecting the appearance and performance of the sheet. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a cooling mechanism for a heat-resistant plastic sheet extrusion equipment. This mechanism solves two problems: firstly, existing cooling equipment struggles to flexibly adjust the spacing between cooling components for plastic sheets of different thicknesses, resulting in significant differences in cooling performance and low applicability; secondly, during the cooling process, external dust easily enters the cooling area, adhering to the sheet surface and affecting the sheet's appearance and performance.

[0006] This utility model provides the following technical solution: a cooling mechanism for a heat-resistant plastic sheet extrusion equipment, including a cooling box, a bidirectional screw rotatably connected between the top and bottom walls of the cooling box, two threaded sleeves threaded onto the surface of the bidirectional screw, mounting frames fixedly connected to the surfaces of the two threaded sleeves, water bags fixedly installed inside the two mounting frames, a sliding rod fixedly connected between the top and bottom walls of the cooling box, two sliding sleeves slidably connected to the surface of the sliding rod, and the two sliding sleeves fixedly connected to the two mounting frames respectively;

[0007] A set of fans is fixedly installed on the top and bottom walls of the cooling box. A set of air inlets corresponding to the fans is opened on the top and bottom of the cooling box. Dust filter components are provided on the top and bottom of the cooling box.

[0008] Preferred technical solution 1: A drive motor is fixedly installed on the top of the cooling box, and the output end of the drive motor extends into the interior of the cooling box and is fixedly connected to the bidirectional screw.

[0009] Preferred technical solution 2: The dust filter assembly includes a support frame fixedly installed on the cooling box. The support frame has an opening on one side and an installation groove inside. A connecting frame is slidably inserted into the installation groove, and a dust filter plate is fixedly installed inside the connecting frame.

[0010] Preferred technical solution 3: Two movable grooves are formed on the upper surface of both support frames, and a locking rod is slidably fitted inside each movable groove. Two locking grooves matching the locking rods are formed on the surface of both connecting frames, and a spring is fitted on one end of the outer side of each locking rod.

[0011] Preferred technical solution four: The cooling box has an inlet and an outlet on its two sides respectively, and the outlet is provided with multiple dustproof baffles, which are made of flexible material.

[0012] Preferred technical solution five: A row of limiting rollers is fixedly connected between the inner walls of the two mounting frames, and the two rows of limiting rollers are respectively pressed against the two water bags. Coolant is added inside the water bags, and inlet pipes and outlet pipes are connected to both sides of the two water bags. Both inlet pipes and outlet pipes are connected to external pipelines.

[0013] Compared with the prior art, this utility model provides a cooling mechanism for a heat-resistant plastic sheet extrusion equipment, which has the following advantages: By connecting this mechanism to the extrusion equipment, the feed inlet is connected to the discharge outlet of the extrusion equipment. The plastic sheet enters through the feed inlet and contacts the upper and lower surfaces of the sheet through two water bags. The coolant inside the water bags rapidly cools the sheet, while two sets of fans further cool the sheet. A dust filter assembly prevents external dust from entering the cooling chamber. Simultaneously, the rotation of the drive motor drives the bidirectional screw, thereby causing the two screw sleeves and mounting blocks to move in opposite directions. This allows for adjustment of the distance between the two water bags, making it suitable for cooling sheets of different thicknesses, thus offering strong applicability. When cleaning the dust filter assembly is needed, pulling the lever upwards disengages it from the slot, releasing the locking of the connecting frame and dust filter plate. The dust filter assembly can then be quickly disassembled for cleaning or replacement, making it convenient and fast. This cooling mechanism uses both air cooling and liquid cooling to cool the sheet, resulting in better cooling performance. It is also suitable for cooling sheets of different thicknesses, offering strong applicability. Furthermore, the external cooling box and dust filter assembly prevent dust from adhering to the sheet, ensuring the sheet's quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional exploded view of the internal structure of the cooling box of this utility model;

[0016] Figure 3 This is an exploded view of the dust filter assembly structure of this utility model.

[0017] In the diagram: 1. Cooling box; 2. Bidirectional screw; 3. Screw sleeve; 4. Mounting frame; 5. Water bag; 6. Slide rod; 7. Slide sleeve; 8. Fan; 9. Air inlet; 10. Dust filter assembly; 11. Drive motor; 12. Support frame; 13. Mounting groove; 14. Connecting frame; 15. Dust filter plate; 16. Movable groove; 17. Locking rod; 18. Locking slot; 19. Spring; 20. Dustproof baffle; 21. Limiting roller. Detailed Implementation

[0018] Please see Figure 1-3 ,

[0019] Example 1: A cooling mechanism for a heat-resistant plastic sheet extrusion equipment includes a cooling box 1. A bidirectional screw 2 is rotatably connected between the top and bottom walls of the cooling box 1. Two threaded sleeves 3 are threaded onto the surface of the bidirectional screw 2. Mounting frames 4 are fixedly connected to the surfaces of the two threaded sleeves 3. Water bags 5 are fixedly installed inside the two mounting frames 4. A sliding rod 6 is fixedly connected between the top and bottom walls of the cooling box 1. Two sliding sleeves 7 are slidably connected to the surface of the sliding rod 6. The two sliding sleeves 7 are fixedly connected to the two mounting frames 4 respectively.

[0020] A set of fans 8 are fixedly installed on the top and bottom walls of the cooling box 1. A set of air inlets 9 corresponding to the fans 8 are opened on the top and bottom of the cooling box 1. Dust filter components 10 are provided on the top and bottom of the cooling box 1.

[0021] Example 2: The difference between this example and Example 1 is that a drive motor 11 is fixedly installed on the top of the cooling box 1. The output end of the drive motor 11 extends into the interior of the cooling box 1 and is fixedly connected to the bidirectional screw 2. The distance between the two water bags 5 can be adjusted by rotating the drive motor 11, making it suitable for cooling sheets of different thicknesses.

[0022] Example 3: The difference between this example and Example 1 is that the dust filter assembly 10 includes a support frame 12 fixedly installed on the cooling box 1. The support frame 12 has an opening on one side and an installation groove 13 inside. A connecting frame 14 is slidably inserted into the installation groove 13. A dust filter plate 15 is fixedly installed inside the connecting frame 14, which facilitates the quick installation and removal of the dust filter plate 15 and makes it easy to clean.

[0023] Example 4: The difference between this example and Example 1 is that the upper surfaces of the two support frames 12 are provided with two movable grooves 16, and each movable groove 16 is slidably fitted with a locking rod 17. The surfaces of the two connecting frames 14 are provided with two locking slots 18 that match the locking rods 17. A spring 19 is fitted on one side of each locking rod 17 to facilitate the fixing of the dust filter plate 15.

[0024] Example 5: The difference between this example and Example 1 is that the cooling box 1 has an inlet and an outlet on both sides, and the outlet is equipped with multiple dust baffles 20. The dust baffles 20 are made of flexible material to block external dust.

[0025] Example 6: The difference between this example and Example 1 is that a row of limiting rollers 21 is fixedly connected between the inner walls of the two mounting frames 4. The two rows of limiting rollers 21 are respectively pressed against the two water bags 5. Coolant is added inside the water bags 5. Inlet pipes and outlet pipes are connected to both sides of the two water bags 5. The inlet pipes and outlet pipes are connected to external pipes, which makes the cooling effect on the sheet better. At the same time, the external pipes can circulate the coolant for cooling.

[0026] In summary, the cooling mechanism of this heat-resistant plastic sheet extrusion equipment connects the mechanism to the extrusion equipment, linking the feed inlet to the discharge outlet. The plastic sheet enters through the feed inlet and contacts the upper and lower surfaces of the sheet via two water bags 5. The coolant inside the water bags 5 rapidly cools the sheet, while two sets of fans 8 further cool it. A dust filter assembly 10 prevents external dust from entering the cooling chamber 1. The rotation of the drive motor 11 drives the bidirectional screw 2, causing the two screw sleeves 3 and the mounting block 4 to move towards or away from each other, thus adjusting the spacing between the two water bags 5. The system is adjustable to accommodate sheets of varying thicknesses for cooling, making it highly adaptable. When cleaning the dust filter assembly 10 is required, the lever 17 can be pulled upwards to disengage it from the slot 18, releasing the lock on the connecting frame 14 and the dust filter plate 15. This allows for quick and easy disassembly of the dust filter assembly 10 for cleaning or replacement. The cooling mechanism utilizes both air and liquid cooling methods to achieve better cooling performance and is suitable for sheets of different thicknesses. Furthermore, the external cooling box 1 and dust filter assembly 10 prevent dust from adhering to the sheet, ensuring its quality.

Claims

1. A cooling mechanism for a heat-resistant plastic sheet extrusion equipment, comprising a cooling box (1), characterized in that: A bidirectional screw (2) is rotatably connected between the top and bottom walls of the cooling box (1). Two threaded sleeves (3) are threaded onto the surface of the bidirectional screw (2). Mounting frames (4) are fixedly connected to the surfaces of the two threaded sleeves (3). Water bags (5) are fixedly installed inside the two mounting frames (4). A sliding rod (6) is fixedly connected between the top and bottom walls of the cooling box (1). Two sliding sleeves (7) are slidably connected to the surface of the sliding rod (6). The two sliding sleeves (7) are fixedly connected to the two mounting frames (4) respectively. A set of fans (8) are fixedly installed on the top and bottom walls of the cooling box (1). A set of air inlets (9) corresponding to the fans (8) are opened on the top and bottom of the cooling box (1). Dust filter components (10) are provided on the top and bottom of the cooling box (1).

2. The cooling mechanism of a heat-resistant plastic sheet extrusion equipment according to claim 1, characterized in that: A drive motor (11) is fixedly installed on the top of the cooling box (1), and the output end of the drive motor (11) extends into the interior of the cooling box (1) and is fixedly connected to the bidirectional screw (2).

3. The cooling mechanism of a heat-resistant plastic sheet extrusion equipment according to claim 2, characterized in that: The dust filter assembly (10) includes a support frame (12) fixedly installed on the cooling box (1). The support frame (12) has an opening on one side and an installation groove (13) inside. A connecting frame (14) is slidably inserted into the installation groove (13). A dust filter plate (15) is fixedly installed inside the connecting frame (14).

4. The cooling mechanism of a heat-resistant plastic sheet extrusion equipment according to claim 3, characterized in that: Two movable slots (16) are provided on the upper surface of the two support frames (12), and a locking rod (17) is slidably sleeved inside each movable slot (16). Two locking grooves (18) matching the locking rods (17) are provided on the surface of the two connecting frames (14), and a spring (19) is sleeved on one side of each locking rod (17).

5. The cooling mechanism of a heat-resistant plastic sheet extrusion equipment according to claim 4, characterized in that: The cooling box (1) has an inlet and an outlet on its two sides respectively. The outlet is provided with a plurality of dustproof baffles (20), which are made of flexible material.

6. The cooling mechanism of a heat-resistant plastic sheet extrusion equipment according to claim 5, characterized in that: A row of limiting rollers (21) is fixedly connected between the inner walls of the two mounting frames (4). The two rows of limiting rollers (21) are respectively pressed against the two water bags (5). Cooling liquid is added inside the water bags (5). Inlet pipes and outlet pipes are connected to both sides of the two water bags (5). The inlet pipes and outlet pipes are connected to external pipes.

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