Cooling device for polycarbonate plate production
By designing an air-cooled cooling device with a temperature-sensitive roller and a transfer structure, the problem of uneven stress caused by cooling temperature quenching in the production of polycarbonate plates is solved, and the equipment vibration and internal stress are reduced, and the stability is achieved. Even cooling effect.
Patent Information
- Application Number
- CN202411623754.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-02-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the production process of polycarbonate plates, quenching of cooling temperature may lead to uneven internal stress of the plate, affecting the performance of use. In addition, the assembly process of traditional air-cooled cooling devices is complicated, which can easily lead to equipment vibration and increase in the internal stress of the plate.
An air-cooled cooling device is designed, including an air-cooled cooling box, an air-cooled channel, a temperature sensing roller, a fan, a sealing member and a transmission structure. The temperature of the polycarbonate plate is sensed through the temperature sensing roller, and the transmission structure controls the sealing member to adjust the opening size of the cold air inlet, so as to gradually adjust the cold air volume according to the plate temperature to achieve stable cooling.
The device can gradually cool down and cool according to the own temperature of the polycarbonate plate, reduce equipment vibration and internal stress of the plate, improve the performance of the plate, and simplify the assembly process of the cooling device.
Smart Images
Figure CN119408023A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cooling devices, in particular to a cooling device for producing a polycarbonate plate. Background Art
[0002] Polycarbonate board (PC board for short) is a polymer material board made of polycarbonate polymer. Polycarbonate board has good transparency and visible light transmittance can reach 90%. It is suitable as a building decoration material. It has outstanding impact resistance and screw deformation resistance, high tensile strength, bending strength, elongation at break and rigidity. It also has good heat resistance and cold resistance and can be used in extreme temperatures.
[0003] During the production process of polycarbonate sheet, the dried polycarbonate sheet is sent into the extruder, and then a single-screw or twin-screw extruder is used for melt extrusion. The molten polycarbonate passes through the extruder head die to form the initial shape of the sheet. It also needs to be cooled after extrusion. However, in order to ensure the quality of the sheet, the extruded polycarbonate sheet needs to be gradually cooled. If the cooling temperature is suddenly cooled, it may cause uneven stress inside the sheet, affecting the performance. During cooling, the polycarbonate sheet is usually passed into a longer cooling channel, and then the polycarbonate sheet is air-cooled by a fan. The temperature in the cooling channel gradually decreases. Usually, multiple air-cooling channels are used for assembly. The ventilation volume in each air-cooling channel gradually increases, thereby increasing the heat dissipation effect. The assembly process has high requirements and needs to maintain the consistency of each air-cooling channel. The equipment may also vibrate due to assembly problems. Vibration melt extrusion, the molten polycarbonate passes through the extruder head die to form the initial shape of the sheet. Vibration may also cause additional internal stress in the sheet during cooling. These stresses may cause various problems such as sheet deformation or cracking during subsequent use. Summary of the invention
[0004] Based on the technical problems existing in the background technology, the present invention proposes a polycarbonate board production cooling device.
[0005] A polycarbonate board production cooling device proposed in the present invention comprises an air-cooled cooling box, a air-cooled cooling channel is formed through the air-cooled cooling box, a plurality of linearly arranged temperature-sensitive rollers are rotatably installed in the air-cooled channel, the temperature-sensitive rollers are used to convey the polycarbonate board, a fan is also installed in the air-cooled channel, a cold air inlet connected to the air-cooled channel is formed on the air-cooled cooling box, a blocking piece capable of blocking the cold air inlet is installed on the air-cooled cooling box, a transmission structure is arranged between the temperature-sensitive roller and the blocking piece, and when the polycarbonate board contacts the temperature-sensitive roller, the transmission structure can transmit the temperature of the polycarbonate board to the blocking piece according to the temperature of the polycarbonate board and control the blocking piece to adjust the opening size of the cold air inlet.
[0006] Preferably, the blocking member comprises a memory alloy sheet, and one side of the memory alloy sheet is fixedly mounted on an inner wall of one side of the cold air inlet.
[0007] Preferably, the transfer structure comprises a heat-conducting box, a heat-conducting column and a pressure relief assembly; a mounting groove is provided in the air-cooling cooling box, the heat-conducting box is fixedly installed in the mounting groove, both ends of the temperature-sensing roller are fixedly connected with a rotating shaft, the rotating shaft of the temperature-sensing roller passes through the inner wall of the air-cooling channel and the heat-conducting box and extends into the heat-conducting box, the heat-conducting box is filled with heat-conducting oil, one end of the heat-conducting column passes through the heat-conducting box and extends into the heat-conducting box, one end of the heat-conducting column away from the heat-conducting box is located on the inner wall of the cold air inlet, and one side of the memory alloy sheet is fixedly installed on the heat-conducting column; When the heat transfer oil expands due to heat, the pressure relief assembly is used to relieve the expansion pressure of the heat transfer oil.
[0008] Preferably, the pressure relief assembly includes a pressure relief pipe, a piston, a limit column, a bracket and a return spring; one end of the pressure relief pipe is fixedly installed on the bottom of the heat conduction box, the end of the pressure relief pipe away from the heat conduction box passes through the air-cooled cooling box and extends to the outside of the air-cooled cooling box, the bottom of the heat conduction box is provided with a pressure relief port connected to the pressure relief pipe, the piston is slidably installed in the pressure relief pipe, one end of the limit column is fixedly installed on the piston, the bracket is fixedly installed on the inner wall of the pressure relief pipe, the end of the limit column away from the piston slides through the bracket, the return spring is mounted on the limit column, and the two ends of the return spring are respectively against the piston and the bracket.
[0009] Preferably, two windshields are installed at the opening connecting the cold air inlet and the air cooling channel, the two windshields are respectively located at the upper and lower sides of the cold air inlet opening, and the distance between the two windshields is the same as the height of the memory alloy sheet; The memory alloy sheet is located at an opening position of the cold air inlet close to one end of the air cooling channel. When the memory alloy sheet is deformed by heat, the memory alloy sheet will bend and enter the position between the two wind shields.
[0010] Preferably, a plurality of heat dissipation structures are installed on the air-cooled cooling box, and the plurality of heat dissipation structures are linearly arranged at intervals along the length direction of the air-cooled channel, and the heat dissipation structures are used to discharge the heat in the air-cooled channel to the outside of the air-cooled cooling box.
[0011] Preferably, the heat dissipation structure includes a heated plate and a heat sink; the heated plate is fixedly mounted on the top inner wall of the air-cooled channel, the heat sink penetrates the air-cooled cooling box and is fixedly connected to the heated plate, and the top of the heat sink extends to the outside of the air-cooled cooling box.
[0012] Preferably, an air filter element is also installed in the cold air inlet, and the air filter element is used to fixedly filter the external air.
[0013] Preferably, a plurality of conveying rollers are rotatably installed in the air cooling channel, the plurality of conveying rollers and the plurality of temperature-sensitive rollers are linearly arranged, and the diameters of the conveying rollers and the temperature-sensitive rollers are the same.
[0014] Preferably, a mounting frame is further included, and the air-cooled cooling box is fixedly mounted on the mounting frame.
[0015] A polycarbonate board production cooling device proposed in the present invention has the following beneficial effects: by arranging an air-cooling cooling box, an air-cooling channel, a temperature-sensing roller, a fan, a sealing member and a transmission structure, the amount of cold air entering the air-cooling channel can be controlled according to the temperature of the polycarbonate board itself, so that the polycarbonate board can be gradually cooled down accordingly according to its own temperature. No power source is used in the entire structure for controlling the amount of cold air, thereby reducing the vibration impact on the device and reducing the impact of the vibration of the device on the quality of the polycarbonate board. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of a polycarbonate board production cooling device proposed by the present invention.
[0017] Figure 2 This is a side sectional view of a polycarbonate board production cooling device proposed by the present invention.
[0018] Figure 3 This is an end cross-sectional view of a polycarbonate board production cooling device proposed by the present invention.
[0019] Figure 4 A polycarbonate board production cooling device proposed by the present invention Figure 3 Enlarged view of point A in the middle.
[0020] Figure 5 The present invention provides a three-dimensional cross-sectional view of a heat-conducting box in a polycarbonate board production cooling device.
[0021] Figure 6 This is a schematic structural diagram of a heat-conducting column in a polycarbonate board production cooling device proposed by the present invention.
[0022] Figure 7 This is a schematic diagram of the flow direction of air at the cold air inlet of the air cooling channel box in a polycarbonate board production cooling device proposed by the present invention.
[0023] In the figure: 1. air-cooled cooling box; 2. air-cooled channel; 3. temperature-sensing roller; 4. fan; 5. cold air inlet; 6. memory alloy sheet; 7. heat-conducting box; 8. heat-conducting column; 9. pressure relief pipe; 10. piston; 11. limit column; 12. bracket; 13. reset spring; 14. wind shield; 15. heat-receiving plate; 16. heat sink; 17. air filter element; 18. conveying roller; 19. mounting frame. DETAILED DESCRIPTION
[0024] Reference Figure 1-Figure 7 The present invention proposes a polycarbonate board production cooling device, including an air-cooled cooling box 1, an air-cooled cooling channel 2 is opened through the air-cooled cooling box 1, a plurality of linearly arranged temperature-sensitive rollers 3 are rotatably installed in the air-cooled channel 2, and the temperature-sensitive rollers 3 are used to transport the polycarbonate board. A plurality of conveying rollers 18 are also rotatably installed in the air-cooled channel 2, and the plurality of conveying rollers 18 are linearly arranged with the plurality of temperature-sensitive rollers 3, and the diameters of the conveying rollers 18 and the temperature-sensitive rollers 3 are the same. A fan 4 is also installed in the air-cooled channel 2, and a cold air inlet 5 connected to the air-cooled channel 2 is opened on the air-cooled cooling box 1. In actual situations, since the number of temperature-sensing rollers 3 is the same as the number of cold air inlets 5 and they are arranged one by one, the number of temperature-sensing rollers 3 should not be too many, which will result in a large distance between two adjacent temperature-sensing rollers 3, and the polycarbonate cannot be well supported when being transported. Insufficient support may also cause the polycarbonate sheet to deform. Therefore, it is necessary to cooperate with the conveying roller 18. In addition, it should be noted that the number of cold air inlets 5 needs to be calculated and planned to reduce the number of cold air inlets 5 that causes the air cooling channel 2 to be too large. The pressure drops, and it is necessary to ensure the air flow in the air-cooling channel 2. A sealing part capable of sealing the cold air inlet 5 is installed on the air-cooling cooling box 1. In actual situations, in different environments, the temperature of the extruded polycarbonate board will be different to a certain extent (different polycarbonate board products, different production processes and equipment conditions and other factors). When air-cooling is performed, it is necessary to control the air intake at the cold air inlet 5 to neutralize the high temperature in the air-cooling channel 2, so that the air temperature in the air-cooling channel 2 is reduced, and the air flow is increased to take away the temperature on the polycarbonate board, thereby achieving the effect of cooling. A transmission structure is provided between the temperature-sensing roller 3 and the sealing part. When the polycarbonate board contacts the temperature-sensing roller 3, the transmission structure can transmit the temperature of the polycarbonate board to the sealing part according to the temperature of the polycarbonate board and control the sealing part to adjust the opening size of the cold air inlet 5. The opening size of the cold air inlet 5 is controlled by sensing the temperature of the polycarbonate board, thereby controlling the air intake of the cold air to adapt to the temperature of the polycarbonate board for cooling treatment, and no additional power structure is required, which reduces the vibration source, ensures the stability of the entire device, and reduces the impact of vibration on the quality of the polycarbonate board.
[0025] like Figure 2 , Figure 3 and Figure 7 As shown in the figure, the sealing part includes a memory alloy sheet 6, one side of which is fixedly installed on the inner wall of one side of the cold air inlet 5. The memory alloy sheet 6 will bend due to the influence of temperature. As the temperature changes, the deformation degree of the memory alloy sheet 6 will also change accordingly, thereby controlling the opening size of the cold air inlet 5.
[0026] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown in, the transfer structure includes a heat conduction box 7, a heat conduction column 8 and a pressure relief component; an installation groove is opened in the air-cooled cooling box 1, and the heat conduction box 7 is fixedly installed in the installation groove. The two ends of the temperature-sensing roller 3 are fixedly connected with a rotating shaft. The temperature-sensing roller 3 and the rotating shaft are made of metal. When the polycarbonate plate contacts the temperature-sensing roller 3, the temperature of the polycarbonate plate will be transferred to the temperature-sensing roller 3 and its rotating shaft. The rotating shaft of the temperature-sensing roller 3 passes through the inner wall of the air-cooled channel 2 and the heat conduction box 7 and extends into the heat conduction box 7. The heat conduction box 7 is filled with heat-conducting oil. One end of the heat conduction column 8 passes through the heat conduction box 7 and extends into the heat conduction box 7. The end of the heat conduction column 8 away from the heat conduction box 7 is located on the inner wall of the cold air inlet 5, and one side of the memory alloy sheet 6 is fixedly installed on the heat conduction column 8; after the temperature-sensing roller 3 is affected by the temperature of the polycarbonate plate, the temperature-sensing roller 3 transfers the polycarbonate plate to the temperature-sensing roller 3. The temperature of the polycarbonate plate is transferred to the heat-conducting oil in the heat-conducting box 7, and the heat-conducting oil is heated and then transfers the temperature to the heat-conducting column 8, and then the heat-conducting column 8 transfers the temperature to the memory alloy sheet 6, so that the memory alloy sheet 6 undergoes a corresponding degree of deformation according to the temperature of the polycarbonate plate, thereby controlling the opening size of the cold air inlet 5, thereby controlling the air intake of the external cold air, thereby achieving a gradual cooling effect on the polycarbonate plate. In actual situations, the heat-conducting oil will expand after being heated. In order to ensure the safe use of the equipment, it is necessary to increase the space in the heat-conducting box 7 to relieve the expansion force of the heat-conducting oil when it is heated. Therefore, a pressure relief component is designed to relieve the pressure of the heat-conducting oil's thermal expansion force. When the heat-conducting oil expands due to heat, the pressure relief component is used to relieve the expansion pressure of the heat-conducting oil.
[0027] like Figure 3 , Figure 4 and Figure 5As shown in, the pressure relief assembly includes a pressure relief pipe 9, a piston 10, a limiting column 11, a bracket 12 and a reset spring 13; one end of the pressure relief pipe 9 is fixedly installed at the bottom of the heat conduction box 7, and the end of the pressure relief pipe 9 away from the heat conduction box 7 passes through the air-cooled cooling box 1 and extends to the outside of the air-cooled cooling box 1. A pressure relief port connected to the pressure relief pipe 9 is opened at the bottom of the heat conduction box 7. The piston 10 is slidably installed in the pressure relief pipe 9. The piston 10 can only slide in the pressure relief pipe 9 and cannot be separated from the pressure relief pipe 9. One end of the limiting column 11 is fixedly installed on the piston 10, and the bracket 12 is fixedly installed on the inner wall of the pressure relief pipe 9. The end of the limiting column 11 away from the piston 10 slides through the bracket 12, and the reset spring 13 is fixedly installed on the inner wall of the pressure relief pipe 9. The spring 13 is sleeved on the limit column 11, and the two ends of the return spring 13 are respectively against the piston 10 and the bracket 12. When the heat-conducting oil in the heat-conducting box 7 expands due to heat, the expanded heat-conducting oil will generate thrust on the piston 10, causing the piston 10 to slide in the pressure relief pipe 9, thereby increasing the space in the heat-conducting box 7. When the piston 10 is affected by the expansion of the heat-conducting oil, the piston 10 slides and squeezes the return spring 13. The cooperation of the limit column 11 and the bracket 12 ensures the sliding direction of the piston 10, reduces the deflection of the piston 10 during the sliding process, and when the temperature of the heat-conducting oil drops, the rebound effect of the return spring 13 will push the piston 10 to slide and reset in the pressure relief pipe 9.
[0028] like Figure 2 , Figure 3 and Figure 7 As shown in the figure, two windshields 14 are installed at the opening connecting the cold air inlet 5 and the air cooling channel 2. The two windshields 14 are respectively located at the upper and lower sides of the opening of the cold air inlet 5. The distance between the two windshields 14 is the same as the height of the memory alloy sheet 6; the two windshields 14, the curved memory alloy sheet 6 and the inner wall of the air cooling channel 2 form a unidirectional opening, which faces the opposite direction of the air movement direction in the air cooling channel 2 (the air flow direction is as shown in FIG. Figure 7 In the direction of the middle arrow), the memory alloy sheet 6 is located at the opening position of the cold air inlet 5 near one end of the air cooling channel 2. When the memory alloy sheet 6 is deformed by heat, the memory alloy sheet 6 will bend into the position between the two wind shields 14. The memory alloy sheet 6 can form a surface with the side wall of the air cooling channel 2. The air in the air cooling channel 2 can move along the inner wall of the air cooling channel 2. When it reaches the position of the memory alloy sheet 6, the air will move along the inclined surface of the bent memory alloy sheet 6. The gap between the memory alloy sheet 6 and the side wall of the air cooling channel 2 is blocked by the two wind shields 14, thereby reducing the air in the air cooling channel 2 from going out of the cold air inlet 5, reducing the pressure reduction in the cold air channel 2, and ensuring the gradual cooling of the polycarbonate plate.
[0029] like Figure 1 , Figure 2 and Figure 3As shown in the figure, a plurality of heat dissipation structures are installed on the air-cooled cooling box 1, and the plurality of heat dissipation structures are linearly arranged at intervals along the length direction of the air-cooled channel 2. The heat dissipation structure is used to discharge the heat in the air-cooled channel 2 to the outside of the air-cooled cooling box 1. The heat dissipation structure includes a heated plate 15 and a heat sink 16; the heated plate 15 and the heat sink 16 are both made of metal, the heated plate 15 is fixedly installed on the top inner wall of the air-cooled channel 2, the heat sink 16 penetrates the air-cooled cooling box 1 and is fixedly connected to the heated plate 15, and the top of the heat sink 16 extends to the outside of the air-cooled cooling box 1. When the air flows in the air-cooled channel 2 The flowing air takes away the heat on the polycarbonate plate, the heat receiving plate 15 is heated by the hot air, and then the heat sink 16 transfers the heat on the heated plate 15 to the outside of the air-cooling channel 2, ensuring the pressure in the air-cooling channel 2, and can also discharge the heat in the air-cooling channel 2 to a certain extent; in actual situations, since the temperatures of each section in the air-cooling channel 2 are different, in order to reduce the interference between the temperatures of each section, multiple heat dissipation structures are set, so that the heat between the multiple heat dissipation structures will not be transferred and interfered with each other, ensuring that the temperature in the air-cooling channel 2 is in a gradually decreasing state.
[0030] like Figure 1 and Figure 3 As shown in the figure, an air filter 17 is also installed in the cold air inlet 5. The air filter 17 is used to fixedly filter the outside air. The air filter 17 filters the outside cold air entering the air cooling channel 2 from the cold air inlet 5, reduces the outside dust and the like from entering and adhering to the polycarbonate board, plays a role in protecting the polycarbonate board, and ensures the quality of the polycarbonate board.
[0031] like Figure 1 As shown in , it also includes a mounting frame 19, and the air-cooling cooling box 1 is fixedly mounted on the mounting frame 19 to ensure support for the air-cooling cooling box 1.
[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A polycarbonate board production cooling device, characterized in that: The invention comprises an air-cooling cooling box (1), wherein an air-cooling channel (2) is provided through the air-cooling cooling box (1), wherein a plurality of linearly arranged temperature-sensitive rollers (3) are rotatably mounted in the air-cooling channel (2), wherein the temperature-sensitive rollers (3) are used to convey a polycarbonate plate, wherein a fan (4) is also mounted in the air-cooling channel (2), wherein a cold air inlet (5) connected to the air-cooling channel (2) is provided in the air-cooling cooling box (1), wherein a blocking member capable of blocking the cold air inlet (5) is mounted on the air-cooling cooling box (1), wherein a transmission structure is arranged between the temperature-sensitive roller (3) and the blocking member, wherein when the polycarbonate plate contacts the temperature-sensitive roller (3), the transmission structure can transmit the temperature of the polycarbonate plate to the blocking member according to the temperature of the polycarbonate plate and control the blocking member to adjust the opening size of the cold air inlet (5).
2. A polycarbonate board production cooling device according to claim 1, characterized in that: The blocking member comprises a memory alloy sheet (6), one side of the memory alloy sheet (6) being fixedly mounted on an inner wall of one side of the cold air inlet (5).
3. A polycarbonate board production cooling device according to claim 2, characterized in that: The transfer structure comprises a heat conduction box (7), a heat conduction column (8) and a pressure relief component; an installation groove is provided in the air-cooled cooling box (1), the heat conduction box (7) is fixedly installed in the installation groove, both ends of the temperature-sensitive roller (3) are fixedly connected with a rotating shaft, the rotating shaft of the temperature-sensitive roller (3) passes through the inner wall of the air-cooled channel (2) and the heat conduction box (7) and extends into the heat conduction box (7), the heat conduction box (7) is filled with heat conduction oil, one end of the heat conduction column (8) passes through the heat conduction box (7) and extends into the heat conduction box (7), one end of the heat conduction column (8) away from the heat conduction box (7) is located on the inner wall of the cold air inlet (5), and one side of the memory alloy sheet (6) is fixedly installed on the heat conduction column (8); When the heat transfer oil expands due to heat, the pressure relief assembly is used to relieve the expansion pressure of the heat transfer oil.
4. A polycarbonate board production cooling device according to claim 3, characterized in that: The pressure relief assembly comprises a pressure relief pipe (9), a piston (10), a limiting column (11), a bracket (12) and a return spring (13); one end of the pressure relief pipe (9) is fixedly mounted on the bottom of the heat conduction box (7); the end of the pressure relief pipe (9) away from the heat conduction box (7) passes through the air-cooled cooling box (1) and extends to the outside of the air-cooled cooling box (1); a pressure relief port connected to the pressure relief pipe (9) is opened at the bottom of the heat conduction box (7); the piston (10) is slidably mounted in the pressure relief pipe (9); one end of the limiting column (11) is fixedly mounted on the piston (10); the bracket (12) is fixedly mounted on the inner wall of the pressure relief pipe (9); the end of the limiting column (11) away from the piston (10) slides through the bracket (12); the return spring (13) is sleeved on the limiting column (11), and the two ends of the return spring (13) are respectively against the piston (10) and the bracket (12).
5. A polycarbonate board production cooling device according to claim 1, characterized in that: Two wind shields (14) are installed at the opening connecting the cold air inlet (5) and the air cooling channel (2), the two wind shields (14) are respectively located at the upper and lower sides of the opening of the cold air inlet (5), and the distance between the two wind shields (14) is the same as the height of the memory alloy sheet (6); The memory alloy sheet (6) is located at an opening position of the cold air inlet (5) close to one end of the air cooling channel (2); when the memory alloy sheet (6) is deformed by heat, the memory alloy sheet (6) will bend and enter a position between the two wind shields (14).
6. A polycarbonate board production cooling device according to claim 1, characterized in that: The air-cooled cooling box (1) is provided with a plurality of heat dissipation structures, which are arranged linearly and spaced apart along the length direction of the air-cooled channel (2), and the heat dissipation structures are used to discharge the heat in the air-cooled channel (2) to the outside of the air-cooled cooling box (1).
7. A polycarbonate board production cooling device according to claim 6, characterized in that: The heat dissipation structure comprises a heat receiving plate (15) and a heat sink (16); the heat receiving plate (15) is fixedly mounted on the top inner wall of the air cooling channel (2); the heat sink (16) penetrates the air cooling box (1) and is fixedly connected to the heat receiving plate (15); the top of the heat sink (16) extends to the outside of the air cooling box (1).
8. A polycarbonate board production cooling device according to claim 1, characterized in that: An air filter element (17) is also installed in the cold air inlet (5), and the air filter element (17) is used to fixedly filter the external air.
9. A polycarbonate board production cooling device according to claim 1, characterized in that: A plurality of conveying rollers (18) are also rotatably mounted in the air cooling channel (2); the plurality of conveying rollers (18) and the plurality of temperature-sensitive rollers (3) are arranged linearly; and the diameters of the conveying rollers (18) and the temperature-sensitive rollers (3) are the same.
10. A polycarbonate board production cooling device according to claim 1, characterized in that: It also includes a mounting frame (19), and the air-cooled cooling box (1) is fixedly mounted on the mounting frame (19).
Citation Information
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