A PP board processing shaping and cooling device

Abstract

This utility model discloses a PP board processing and shaping cooling device, including support legs, a support frame fixedly connected to the support legs, a top cover fixedly connected to the upper part of the support frame, rotating sleeves rotatably connected to both sides of the support frame at equal intervals, a connecting pipe rotatably connected between adjacent rotating sleeves, a rubber cylinder fixedly connected between adjacent rotating sleeves, and an elbow rotatably connected to one side of adjacent connecting pipes. A cooler is provided on one side of the support frame, the cooler being fixedly connected to an inlet pipe and an outlet pipe. The inlet pipe is fixedly connected to the connecting pipe on the front side, and the outlet pipe is connected to the connecting pipe on the rear side. The symmetrically arranged water-filled rubber cylinders wrap around the board and drive synchronously, replacing the traditional roller contact. The flexible rubber cylinders adaptively conform to both sides of the board, eliminating the bottom heat dissipation dead corner, ensuring consistent cooling rates on the upper and lower surfaces, and significantly reducing warping deformation and internal stress problems caused by temperature differences.

Description

Technical Field

[0001] This utility model relates to the field of PP board production technology, and more specifically, it relates to a PP board processing, shaping and cooling device. Background Technology

[0002] As a type of polypropylene sheet, PP sheet is known for its lightweight nature and excellent corrosion resistance, high temperature resistance, wear resistance, and sound and heat insulation properties. This makes it an ideal material for chemical, electronics, machinery, automotive, and construction industries. In its manufacturing process, PP sheets freshly extruded from the extruder must undergo a cooling process before further processing.

[0003] However, existing PP boards still have the following problems during the shaping and cooling process:

[0004] 1. PP sheets are typically transported on cooling lines using rotating rollers. Because the rollers are in direct contact with the bottom surface of the sheet, heat dissipation in this area is significantly hindered, resulting in a much lower cooling efficiency at the bottom compared to the exposed top surface. This significant difference in cooling rates between the top and bottom causes uneven stress within the sheet, which can induce warping and even cracking, severely affecting the flatness and mechanical properties of the final product.

[0005] 2. Some cooling processes rely on forced airflow to cool the PP sheet. However, air itself has poor thermal conductivity, resulting in a slow and limited cooling effect. This mild cooling method is insufficient to quickly lower the sheet temperature below the critical point for hardening, causing the PP sheet to remain in a plastic state for an extended period. This leads to problems such as unstable dimensional shrinkage, poor surface smoothness, and unsatisfactory overall shaping.

[0006] 3. When using water to directly cool PP boards, the efficient heat conduction of water causes the surface to shrink rapidly while the interior remains at a high temperature. This instantly generates a huge internal and external temperature gradient and extremely high internal stress, which is the main cause of board deformation or cracking. Furthermore, minerals precipitate from the circulating water and deposit on the high-temperature board surface, forming stubborn scale that contaminates the surface. If the moisture on the board surface is not completely removed after cooling, residual evaporation will form unsightly water stains, severely affecting the product's appearance.

[0007] Therefore, there is an urgent need for a PP board processing and shaping cooling device. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] In view of the problems existing in the prior art, this utility model provides a PP board processing and shaping cooling device to solve the technical problems mentioned in the background art.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution: a PP board processing and shaping cooling device, comprising a support leg, a support frame fixedly connected to the support leg, a top cover fixedly connected to the upper part of the support frame, rotating sleeves rotatably connected to both sides of the support frame at equal intervals, a connecting pipe rotatably connected between adjacent rotating sleeves on the left and right, a rubber cylinder fixedly connected between adjacent rotating sleeves on the left and right, an elbow rotatably connected to one side of adjacent connecting pipes, a cooler provided on one side of the support frame, the cooler being fixedly connected to an inlet pipe and an outlet pipe, the inlet pipe being fixedly connected to the connecting pipe on the front side, the outlet pipe communicating with the connecting pipe on the rear side, and an air extraction structure provided inside the support frame.

[0012] The present invention is further configured such that the connecting pipe and the elbow form a continuous passage.

[0013] The present invention is further configured such that the rubber sleeve is fitted on the outside of the adjacent connecting pipe.

[0014] The present invention is further configured such that a belt is wound between adjacent rotating sleeves, a motor is fixedly connected to one side of the support frame, and a belt is wound between the output shaft of the motor and the adjacent rotating sleeve.

[0015] The present invention is further configured such that the connecting pipe is provided with elongated through holes spaced equally in the circumferential direction, and a rectangular shell is fixedly connected to the elongated through holes of the connecting pipe.

[0016] The present invention is further configured such that the air extraction structure includes two fixed shells, which are respectively fixed to the support frame and the top cover. A sponge block is fixed to each fixed shell, and the sponge block abuts against the adjacent rubber cylinder.

[0017] The present invention is further configured such that a support mesh is fixedly connected inside the fixed shell, the support mesh is in contact with the adjacent sponge block, an exhaust fan is provided on one side of the support frame, the exhaust fan is fixedly connected with two air outlet pipes, and the two air outlet pipes are respectively fixedly connected to the two fixed shells.

[0018] The present invention is further configured such that baffles are fixedly connected to both the front and rear sides of the support frame, and the baffles are provided with rectangular holes.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides a PP board processing and shaping cooling device, which has the following beneficial effects:

[0021] 1. This utility model replaces the traditional roller contact by synchronously driving the sheet material by wrapping it with symmetrical water-filled rubber cylinders at the top and bottom. The flexible rubber cylinders adaptively fit both sides of the sheet material, eliminating the bottom heat dissipation dead corner, ensuring that the cooling rate of the upper and lower surfaces is consistent, and significantly reducing warping deformation and internal stress problems caused by temperature differences.

[0022] 2. This invention utilizes a tiered cooling water flow that flows against the direction of the plate material, creating a gradual cooling gradient and preventing the generation of significant thermal stress from sudden cooling. The cooling water is sealed within a rubber cylinder-connecting pipe circuit throughout the process, eliminating direct contact with the plate surface and fundamentally preventing scale buildup and water stains, thus ensuring surface cleanliness.

[0023] 3. This invention uses a forced airflow through a blower to penetrate the sponge block containing condensate, accelerating the air cooling of the sheet material and promoting the evaporation and self-drying of the sponge. The sponge continuously absorbs condensate from the surface of the rubber cylinder, and combined with negative pressure airflow circulation, it achieves dynamic humidity control in the cooling zone, improving shaping efficiency and avoiding secondary water loss. Attached Figure Description

[0024] Figure 1 This is a front view of a PP board processing and shaping cooling device according to the present invention.

[0025] Figure 2 This is a schematic diagram of the support frame and rubber cylinder in this utility model;

[0026] Figure 3 This is a schematic diagram of the rotating sleeve and rubber cylinder in this utility model;

[0027] Figure 4 This is a cross-sectional view of the rubber cylinder in this utility model;

[0028] Figure 5 This is a cross-sectional view of the fixed shell in this utility model.

[0029] In the diagram: 1. Support leg; 2. Support frame; 3. Top cover; 4. Rotating sleeve; 5. Connecting pipe; 6. Rubber cylinder; 7. Elbow; 8. Cooler; 9. Inlet pipe; 10. Outlet pipe; 11. Belt; 12. Motor; 13. Rectangular shell; 14. Fixed shell; 15. Sponge block; 16. Support net; 17. Exhaust fan; 18. Air outlet pipe; 19. Baffle. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Please see Figures 1-5 A PP board processing and shaping cooling device includes a support leg 1, a support frame 2 fixedly connected to the support leg 1, a top cover 3 fixedly connected to the upper part of the support frame 2, rotating sleeves 4 evenly spaced on both sides of the support frame 2, a connecting pipe 5 rotatably connected between adjacent rotating sleeves 4, a rubber cylinder 6 fixedly connected between adjacent rotating sleeves 4, and an elbow 7 rotatably connected to one side of adjacent connecting pipes 5. A cooler 8 is provided on one side of the support frame 2, and an inlet pipe 9 and an outlet pipe 10 are fixedly connected to the cooler 8. The inlet pipe 9 is connected to the connecting pipe 5 on the front side. The outlet pipe 10 is connected to the connecting pipe 5. An air extraction structure is provided inside the support frame 2. The connecting pipe 5 and the elbow 7 form a continuous passage. The rubber cylinder 6 is sleeved on the outside of the adjacent connecting pipe 5. A belt 11 is wound between the adjacent rotating sleeves 4. A motor 12 is fixed to one side of the support frame 2. A belt 11 is wound between the output shaft of the motor 12 and the adjacent rotating sleeve 4. The connecting pipe 5 is provided with circumferentially spaced elongated through holes. A rectangular shell 13 is fixed to the elongated through holes of the connecting pipe 5. The rectangular shell 13 is used to disturb the cooling water inside the rubber cylinder 6.

[0034] The present invention is further configured such that the air extraction structure includes two fixed shells 14, which are respectively fixed to the support frame 2 and the top cover 3. A sponge block 15 is fixed to the fixed shell 14, and the sponge block 15 abuts against the adjacent rubber cylinder 6.

[0035] Please see Figure 1 and Figure 5 A support net 16 is fixedly connected inside the fixed shell 14. The support net 16 is in contact with the adjacent sponge block 15. An exhaust fan 17 is provided on one side of the support frame 2. The exhaust fan 17 is fixedly connected to two air outlet pipes 18. The two air outlet pipes 18 are fixedly connected to the two fixed shells 14 respectively. Baffles 19 are fixedly connected to both the front and rear sides of the support frame 2. The baffles 19 are provided with rectangular holes.

[0036] The working principle of this utility model is as follows: When the cooler 8 is started, the cooling water in the cooler 8 is discharged from the outlet pipe 10 into the two connecting pipes 5 on the rear side. The cooling water is then transported to the connecting pipes 5 on the front side through the elbow 7, and finally re-enters the cooler 8 through the inlet pipe 9. The cooling water enters the rubber cylinder 6 through the long through hole of the connecting pipe 5. The rubber cylinder 6 expands. The motor 12 is started. The motor 12 drives multiple rotating sleeves 4 to rotate along the support frame 2 through the belt 11. Then, the plate enters between the upper and lower adjacent rubber cylinders 6 through the rectangular hole of the baffle 19. The rubber cylinder 6 carries the plate backward. After the plate enters between the two rubber cylinders 6, the rubber cylinder 6 deforms and adheres to the plate. During the transmission process, the pressure of the cooling water in the rubber cylinder 6 can be kept stable. Through the circulation of the cooling water, the plate is cooled. The cooling water moves forward from the rear connecting pipe 5, so that the rubber cylinder 6 forms a stepped cooling of the plate, preventing the plate from being subjected to a huge temperature gradient, which would cause uneven shrinkage of the surface and the interior, and generate huge internal stress.

[0037] During the above process, the sponge block 15 absorbs the condensate on the outside of the rubber cylinder 6, and under the action of the support net 16, the sponge block 15 and the rubber cylinder 6 are always in contact. The exhaust fan 17 is started, and the exhaust fan 17 draws air from the fixed shell 14 through the air outlet pipe 18, so that the fixed shell 14 is in a negative pressure state. Then, the outside air enters the support frame 2 through the rectangular hole of the baffle 19, and then passes through the sponge and is discharged from the air outlet of the exhaust fan 17. The air flow in the support frame 2 carries away some of the heat of the board and cools the board. At the same time, the flowing air passes through the sponge block 15, increasing the evaporation rate of the condensate on the sponge block 15.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PP plate processing, shaping and cooling device comprising a support leg (1), characterized in that: The support leg (1) is fixedly connected to a support frame (2), and a top cover (3) is fixedly connected to the upper part of the support frame (2). Rotating sleeves (4) are rotatably connected to both sides of the support frame (2) at equal intervals. A connecting pipe (5) is rotatably connected between the left and right adjacent rotating sleeves (4). A rubber cylinder (6) is fixedly connected between the left and right adjacent rotating sleeves (4). An elbow (7) is rotatably connected to one side of the adjacent connecting pipes (5). A cooler (8) is provided on one side of the support frame (2). A water inlet pipe (9) and a water outlet pipe (10) are fixedly connected to the cooler (8). The water inlet pipe (9) is fixedly connected to the connecting pipe (5) on the front side. The water outlet pipe (10) is connected to the connecting pipe (5) on the rear side. An air extraction structure is provided inside the support frame (2).

2. The PP plate processing, shaping and cooling device according to claim 1, characterized in that: The connecting pipe (5) and the elbow (7) form a continuous passage.

3. The PP plate processing, shaping and cooling device according to claim 1, characterized in that: The rubber sleeve (6) is fitted onto the outside of the adjacent connecting pipe (5).

4. The PP board processing and shaping cooling device according to claim 1, characterized in that: A belt (11) is wound between adjacent rotating sleeves (4), and a motor (12) is fixed to one side of the support frame (2). A belt (11) is wound between the output shaft of the motor (12) and the adjacent rotating sleeves (4).

5. The PP board processing and shaping cooling device according to claim 3, characterized in that: The connecting pipe (5) is provided with circumferentially spaced elongated through holes, and a rectangular shell (13) is fixedly connected to the elongated through holes of the connecting pipe (5).

6. The PP plate processing, shaping and cooling device according to claim 1, characterized in that: The air extraction structure includes two fixed shells (14), which are respectively fixed to the support frame (2) and the top cover (3). A sponge block (15) is fixed to the fixed shell (14), and the sponge block (15) abuts against the adjacent rubber cylinder (6).

7. The PP plate processing, shaping and cooling device according to claim 6, characterized in that: A support net (16) is fixed inside the fixed shell (14). The support net (16) is in contact with the adjacent sponge block (15). A fan (17) is provided on one side of the support frame (2). The fan (17) is fixed with two air outlet pipes (18). The two air outlet pipes (18) are respectively fixed to the two fixed shells (14).

8. The PP plate processing, shaping and cooling device according to claim 7, characterized in that: Both the front and rear sides of the support frame (2) are fixed with baffles (19), and the baffles (19) are provided with rectangular holes.

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