Refrigeration adsorption roller

Abstract

The utility model discloses a kind of refrigeration adsorption rollers, including roller body, hollow center shaft and transmission shaft, the outer periphery of the roller body evenly distributed with multiple adsorption holes, the adsorption hole is communicated with the inside of the roller body, the center shaft and transmission shaft are coaxially arranged in the roller body, one end of the center shaft is stretched out from the first through hole of one end of the roller body, the outer periphery of the center shaft is equipped with connecting block, the connecting block is located in the first through hole and roller body and is rotatably connected with the roller body, the other end of the center shaft is rotatably connected with one end of the transmission shaft, the other end of the transmission shaft is stretched out from the second through hole of the other end of the roller body, the transmission shaft is fixedly connected with the inner wall of the second through hole, the outer periphery of the center shaft is circumferentially spaced apart and provided with two baffles. The utility model can reduce the volume of coating device, occupy small space, improve space utilization, while reducing production cost and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a refrigeration adsorption roller. Background Technology

[0002] Existing adsorption rollers generally include a roller shaft and a cylinder rotatably fitted around the outer circumference of the roller shaft. One end of the cylinder is used to connect to a drive mechanism mounted on the drive side wall of the coating device and for mounting on the drive side wall. Multiple adsorption holes are evenly distributed on the outer circumferential surface of the cylinder, and these holes communicate with the interior of the cylinder. One end of the roller shaft is closed, while the other end is open, used to connect to a vacuum device and for mounting on the fixed side wall of the coating device. Ventilation holes are provided on the outer circumferential surface of the roller shaft, communicating with both the interior of the roller shaft and the interior of the cylinder. After the slurry is applied to a substrate, such as foil, by the coating mechanism of the coating device, the substrate passes over the roller. The roller is driven to rotate by the drive mechanism, and the rotation of the roller can move the substrate, thereby achieving traction of the substrate. At the same time, a vacuum device is used to evacuate the adsorption holes through the other end of the roller shaft, the inside of the roller shaft, the vent holes, and the inside of the roller, so that the substrate can be adsorbed onto the roller. This can isolate the tension of the substrate, thereby avoiding wrinkles and tension fluctuations in the substrate, thus ensuring the flatness and stability of the substrate during the coating process.

[0003] The friction between the substrate and the roller often generates heat, which can cause changes in the viscosity of the slurry on the substrate, making it easy for the slurry to stick to the roller. Since the aforementioned adsorption roller cannot cool the substrate, an additional water-cooled roller is usually required to cool the substrate. However, using both adsorption and water-cooled rollers increases the length of the coating device, making it larger and occupying more space, reducing space utilization, and increasing production and maintenance costs. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a cooling adsorption roller, which not only serves to pull and tension-break the substrate, but also to cool the substrate. This reduces the volume of the coating device, occupies less space, improves space utilization, and reduces production and maintenance costs.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A cooling adsorption roller includes a roller body, a hollow central shaft, and a drive shaft. Multiple adsorption holes are evenly distributed on the outer circumferential surface of the roller body, and these holes communicate with the interior of the roller body. The central shaft and the drive shaft are coaxially disposed within the roller body. One end of the central shaft extends from a first through hole at one end of the roller body. A connecting block is sleeved on the outer circumference of the central shaft, located within the first through hole and the roller body, and rotatably connected to the roller body. The other end of the central shaft is rotatably connected to one end of the drive shaft, and the other end of the drive shaft extends from a second through hole at the other end of the roller body. The drive shaft is fixedly connected to the inner wall of the second through hole. Two baffles are arranged circumferentially on the outer peripheral surface of the central shaft. The baffles are located inside the roller body and their two ends are close to the two ends of the roller body. The end of the baffle away from the central shaft is in contact with the inner peripheral surface of the roller body. An adsorption cavity is formed between the side of the two baffles that are close to each other and the inner peripheral surface of the roller body. A non-adsorption cavity is formed between the side of the two baffles that are far apart from each other and the inner peripheral surface of the roller body. A vent hole is provided on the outer peripheral surface of the central shaft. The vent hole is connected to the interior of the central shaft and the adsorption cavity. An evaporator is provided in the non-adsorption cavity. The liquid inlet end and liquid outlet end of the evaporator extend from the first hole and the second hole of the connecting block, respectively.

[0006] As a preferred technical solution, the roller body includes an annular body, a first cover plate, and a second cover plate. Multiple adsorption holes are evenly distributed on the outer circumferential surface of the body. The first cover plate is disposed at one end of the body, and the second cover plate is disposed at the other end of the body. The central shaft and the transmission shaft are coaxially disposed within the body. The first cover plate has a first through hole, and the second cover plate has a second through hole. The connecting block is located within the first through hole and the body and is rotatably connected to the body. The baffle is located within the body, and the end of the baffle away from the central shaft contacts the inner circumferential surface of the body. An adsorption cavity is formed between the side of the two baffles that are close together and the inner circumferential surface of the body, and a non-adsorption cavity is formed between the side of the two baffles that are far apart and the inner circumferential surface of the body.

[0007] As a preferred technical solution, a sealing strip is provided at one end of the baffle away from the central axis, the sealing strip is in contact with the inner circumferential surface of the roller body, and a first plug is provided inside the central axis, the first plug being close to the other end of the central axis.

[0008] As a preferred technical solution, the cooling adsorption roller further includes a width adjustment component, which includes a drive module, a synchronous belt module, a first lead screw, a second lead screw, an optical axis, a first movable block, and a second movable block. A bracket is fitted around the outer periphery of the central shaft, and the bracket is located between the roller body and one end of the central shaft. The drive module is mounted on the bracket. The first lead screw, the second lead screw, and the optical axis are all located within the adsorption cavity. The optical axis is located between the first lead screw and the second lead screw, and its two ends are respectively connected to the first end of the first lead screw and the first end of the second lead screw. The first lead screw and the second lead screw are rotatably mounted on the outer periphery of the central shaft. The second end of the first lead screw passes through the third hole of the connecting block and the bracket of the support. The hole is connected to the drive module via the synchronous belt module. The threads of the first lead screw and the second lead screw have opposite directions. The first movable block is threadedly connected to the first lead screw, and the second movable block is threadedly connected to the second lead screw. The first movable block and the second movable block are symmetrically arranged about the center of the adsorption cavity. The two ends of the first movable block and the second movable block respectively cooperate with the side of the two baffles that are close to each other. The bottom end of the first movable block and the second movable block are respectively provided with a first arc surface, which cooperates with the outer peripheral surface of the central shaft. The top end of the first movable block and the second movable block are respectively provided with a second arc surface, which cooperates with the inner peripheral surface of the roller body. The vent hole is located between the first movable block and the second movable block.

[0009] As a preferred technical solution, the drive module includes an adjusting shaft and an adjusting handwheel. The adjusting shaft passes through the through hole of the bracket, and an adjusting bearing seat is sleeved on the outer periphery of the adjusting shaft. The adjusting bearing seat is located on one side of the bracket. The second end of the first lead screw is connected to one end of the adjusting shaft through the synchronous belt module, and the other end of the adjusting shaft is connected to the adjusting handwheel.

[0010] As a preferred technical solution, the adjusting handwheel is a textured digital handwheel.

[0011] As a preferred technical solution, the synchronous belt module includes a driving pulley, a driven pulley, and a synchronous belt sleeved on the outer periphery of the driving pulley and the driven pulley. The driving pulley is sleeved on the outer periphery of one end of the adjusting shaft, and the driven pulley is sleeved on the outer periphery of the second end of the first lead screw.

[0012] As a preferred technical solution, the drive module includes a rotary motor or a rotary cylinder, which is disposed on one side of the bracket. The output shaft of the rotary motor or rotary cylinder passes through the through hole of the bracket, and the second end of the first lead screw is connected to the output shaft of the rotary motor or rotary cylinder through the synchronous belt module.

[0013] As a preferred technical solution, an air extraction hole is provided on the outer peripheral surface of one end of the central shaft, the air extraction hole is connected to the interior of the central shaft, and a second plug is provided inside one end of the central shaft.

[0014] As a preferred technical solution, a mounting flange is fitted around one end of the central shaft, the mounting flange has a flange mounting hole, and a seated bearing is fitted around the outer periphery of the transmission shaft, the seated bearing has a bearing mounting hole.

[0015] The beneficial effects of this utility model are as follows: This utility model, through the setting of a roller body, multiple adsorption holes on the outer peripheral surface of the roller body, a hollow central shaft, a transmission shaft, an adsorption chamber, a non-adsorption chamber, and an evaporator set in the non-adsorption chamber, not only plays the role of traction and tension isolation of the substrate, but also plays the role of cooling the substrate. Compared with the prior art, it does not require an additional water-cooled roller to cool the substrate, reduces the length of the coating device, thereby reducing the volume of the coating device, occupying less space, improving space utilization, and reducing production and maintenance costs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of a cooling adsorption roller at a first angle according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of the second angle of the cooling adsorption roller shown; Figure 3 , Figure 4 yes Figure 1 A cross-sectional schematic diagram of the cooling adsorption roller shown. Figure 5 yes Figure 1 A schematic diagram of the structure of the cooling adsorption roller body and the drive shaft shown; Figure 6 yes Figure 1 The diagram shows the structure of the cooling adsorption roller after removing the roller body, drive shaft, and bearing seat. Figure 7 yes Figure 1 The diagram shows the structure of the width adjustment component of the cooling adsorption roller.

[0018] Figure label: 10. Roller body; 11. Adsorption hole; 12. Body; 13. First cover plate; 131. First through hole; 132. First protrusion; 14. Second cover plate; 141. Second protrusion; 15. Adsorption chamber; 16. Non-adsorption chamber; 20. Central shaft; 21. Connecting block; 211. Connecting block bearing; 212. Third hole; 213. Connecting flange bearing; 22. Central shaft bearing; 23. First plug; 24. Vent hole; 25. Baffle; 251. Sealing strip; 26. Air extraction hole; 27. Second plug; 28. Bracket; 281. Protective cover; 30. Drive shaft; 40. Install the flange; 50. Mounted bearings; 60. Evaporator; 70. Wide-range adjustment assembly; 71. Drive module; 711. Adjustment shaft; 7111. Adjustment bearing seat; 712. Handwheel; 72. Synchronous belt module; 721. Drive pulley; 722. Driven pulley; 723. Synchronous belt; 73. First lead screw; 731. First mounting base; 7311. First flange bearing; 74. Second lead screw; 741. Second mounting base; 7411. Second flange bearing; 75. Optical shaft; 751. Coupling; 76. First movable block; 761. First arc surface; 762. Second arc surface; 77. Second movable block. Detailed Implementation

[0019] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0020] Please refer to Figures 1 to 7 An embodiment of this utility model provides a refrigeration adsorption roller, comprising a roller body 10, a hollow central shaft 20, and a transmission shaft 30.

[0021] Multiple adsorption holes 11 are evenly distributed on the outer circumferential surface of the roller body 10, and the adsorption holes 11 are connected to the interior of the roller body 10. The number of adsorption holes 11 can be set according to the actual situation.

[0022] Both the central shaft 20 and the drive shaft 30 are coaxially arranged inside the roller body 10. One end of the central shaft 20 extends out from the first through hole 131 at one end of the roller body 10. An annular connecting block 21 is sleeved on the outer periphery of the central shaft 20. The connecting block 21 is located inside the first through hole 131 and the roller body 10 and is rotatably connected to the roller body 10. The other end of the central shaft 20 is rotatably connected to one end of the drive shaft 30. Specifically, one end of the drive shaft 30 extends into the other end of the central shaft 20, and a central shaft bearing 22 is provided inside the other end of the central shaft 20. The central shaft bearing 22 is sleeved on the outer periphery of one end of the drive shaft 30. The other end of the drive shaft 30 extends out from the second through hole at the other end of the roller body 10. The drive shaft 30 is fixedly connected to the inner wall of the second through hole, for example, by welding. Two baffles 25 are spaced circumferentially on the outer periphery of the central shaft 20. The baffles 25 are inverted trapezoidal in shape and are located inside the roller body 10, with their ends close to the ends of the roller body 10. The end of the baffle 25 furthest from the central shaft 20 contacts the inner periphery of the roller body 10. The length of the baffle 25 is parallel to the axial direction of the central shaft 20. An adsorption cavity 15 is formed between the side of the two baffles 25 that is close together and the inner periphery of the roller body 10. A non-adsorption cavity 16 is formed between the side of the two baffles 25 that is furthest away and the inner periphery of the roller body 10. The non-adsorption cavity 16 is located below the adsorption cavity 15. A vent hole 24 is provided on the outer periphery of the central shaft 20, communicating with both the interior of the central shaft 20 and the adsorption cavity 15. An evaporator 60 is housed within the non-adsorption cavity 16. The inlet and outlet ends of the evaporator 60 extend from the first hole (not shown in the figure) and the second hole (not shown in the figure) of the connecting block 21, respectively. The liquid inlet of the evaporator 60 is used to connect to the compressor, and the liquid outlet of the evaporator 60 is used to connect to the condenser.

[0023] In practical applications, one end of the central shaft 20 is connected to a vacuum pump. The central shaft 20 is mounted on the fixed side wall of the coating device. The drive shaft 30 is mounted on the drive side wall of the coating device. The other end of the drive shaft 30 is connected to a drive mechanism mounted on the drive side wall. The drive mechanism drives the drive shaft 30 to rotate, thereby rotating the roller 10. The liquid inlet of the evaporator 60 is connected to the compressor, and the liquid outlet of the evaporator 60 is connected to the condenser. The condenser is connected to the compressor. During operation, the substrate passes over the roller 10 and is positioned above the adsorption chamber 15. The drive mechanism drives the drive shaft 30 to rotate, thereby rotating the roller 10. The rotation of the roller 10 moves the substrate. Simultaneously, the vacuum pump passes through one end of the central shaft 20, the interior of the central shaft 20, and the vent hole. 24. The adsorption chamber 15 can be evacuated to the adsorption holes 11 corresponding to the adsorption chamber 15, thereby adsorbing the substrate onto the roller 10 through the adsorption holes 11. This interrupts the tension of the substrate and achieves traction on the substrate, thus preventing wrinkles and tension fluctuations. This ensures the flatness and stability of the substrate during the coating process. Simultaneously, a low-temperature liquid refrigerant is introduced into the evaporator 60 by the compressor. The liquid refrigerant evaporates into a gaseous refrigerant in the evaporator 60, absorbing heat in the process, thus achieving cooling. This lowers the temperature of the roller 10, allowing the substrate to be cooled. This prevents changes in the viscosity of the slurry on the substrate, thus preventing sticking to the roller and ensuring the coating quality of the substrate. The gaseous refrigerant then enters the condenser, where it condenses into a liquid refrigerant. The liquid refrigerant then enters the compressor for circulation. The substrate can be, for example, foil.

[0024] In this embodiment, there are four vent holes 24, which are spaced apart along the axial direction of the central axis 20. Understandably, the number of vent holes 24 can be set according to the actual situation.

[0025] This invention, through the arrangement of a roller body 10, multiple adsorption holes 11 on the outer circumference of the roller body 10, a hollow central shaft 20, a transmission shaft 30, an adsorption chamber 15, a non-adsorption chamber 16, and an evaporator 60 installed within the non-adsorption chamber 16, serves both to traction and tension isolation of the substrate, and to cool the substrate. Compared to existing technologies, it eliminates the need for an additional water-cooled roller for substrate cooling, reducing the length of the coating device and thus its volume, occupying less space, improving space utilization, and simultaneously reducing production and maintenance costs. The non-adsorption chamber 16 provides ample installation space for the evaporator 60, facilitating its installation. Furthermore, when a vacuum is applied to the adsorption holes 11 corresponding to the adsorption chamber 15 via one end of the central shaft 20, the interior of the central shaft 20, the vent 24, and the adsorption chamber 15, a large amount of cold air is not carried away, ensuring effective cooling.

[0026] In this embodiment, the roller body 10 includes an annular body 12, a first cover plate 13, and a second cover plate 14. Multiple adsorption holes 11 are evenly distributed on the outer circumferential surface of the body 12. In practical applications, the substrate passes over the body 12 and can be adsorbed onto it. The first cover plate 13 is disposed at one end of the body 12, and a sealing ring can be provided between the first cover plate 13 and one end of the body 12 for sealing. The second cover plate 14 is disposed at the other end of the body 12, and a sealing ring can be provided between the second cover plate 14 and the other end of the body 12 for sealing. The central shaft 20 and the transmission shaft 30 are coaxially disposed within the body 12. The first cover plate 13 has the first through hole 131, and the second cover plate 14 has the second through hole. The connecting block 21 is located within the first through hole 131 and the body 12 and is rotatably connected to the body 12. The baffle 25 is located within the body 12, and the end of the baffle 25 away from the central axis 20 contacts the inner circumferential surface of the body 12. The adsorption cavity 15 is formed between the side of the two baffles 25 that is close to each other and the inner circumferential surface of the body 12, and the non-adsorption cavity 16 is formed between the side of the two baffles 25 that is far apart from each other and the inner circumferential surface of the body 12. The rotation of the drive shaft 30 can drive the second cover plate 14 to rotate, thereby driving the body 12 and the first cover plate 13 to rotate.

[0027] like Figure 3 As shown, the first cover plate 13 has an annular first protrusion 132 formed at one end near the center of the roller body 10, and the first protrusion 132 is inserted into one end of the body 12. The first protrusion 132 is arranged around the outer periphery of the connecting block 21. The second cover plate 14 has an annular second protrusion 141 formed at one end near the center of the roller body 10, and the second protrusion 141 is inserted into the other end of the body 12. The second protrusion 141 facilitates the assembly of the second cover plate 14 and the body 12 together. The second cover plate 14 and the second protrusion 141 are fixed to the drive shaft 30, for example, by welding.

[0028] like Figure 3 and Figure 6 As shown, the connecting block 21 is rotatably connected to the body 12. Specifically, a connecting block bearing 211 is provided between the connecting block 21 and the body 12, and the connecting block bearing 211 is sleeved on the outer periphery of the connecting block 21. The connecting block bearing 211 is located between the center of the first protrusion 132 and the center of the roller body 10 and abuts against the first protrusion 132. The connecting block bearing 211 can be pressed tightly by the second protrusion 132. For example, a sealing ring is sleeved on the outer periphery of the connecting block 21. The sealing ring sleeved on the outer periphery of the connecting block 21 contacts the inner wall of the first through hole 131, and the sealing ring provides a sealing function.

[0029] like Figures 1 to 3 , Figure 6 As shown, in this embodiment, a mounting flange 40 is fitted around one end of the central shaft 20. The mounting flange 40 has flange mounting holes, the number of which can be set according to actual conditions. In practical applications, the mounting flange 40 is mounted on the fixed side wall plate of the coating device through its flange mounting holes and screws, thus enabling the central shaft 20 to be mounted on the fixed side wall plate of the coating device. A seated bearing 50 is fitted around the outer periphery of the drive shaft 30. The seated bearing 50 has bearing mounting holes. In practical applications, the drive shaft 30 passes through the holes in the drive side wall plate of the coating device, and the seated bearing 50 is mounted on the drive side wall plate of the coating device through its bearing mounting holes and screws, thus enabling the drive shaft 30 to be rotatably mounted on the drive side wall plate of the coating device.

[0030] like Figure 3 As shown, a first plug 23 is provided inside the central shaft 20, and the first plug 23 is close to the other end of the central shaft 20. The first plug 23 can seal the other end of the central shaft 20, so that a vacuum device can be used to evacuate the adsorption holes 11 corresponding to the adsorption chamber 15 through one end of the central shaft 20, the interior of the central shaft 20, the vent 24, and the adsorption chamber 15.

[0031] like Figure 2 and Figure 6As shown, a vacuum hole 26 is provided on the outer circumferential surface of one end of the central shaft 20. The vacuum hole 26 communicates with the interior of the central shaft 20 and is located between the mounting flange 40 and one end of the central shaft 20. A second plug 27 is provided inside one end of the central shaft 20. In practical applications, the vacuum hole 26 is connected to a vacuum pump. The vacuum pump can evacuate the adsorption holes 11 corresponding to the adsorption chamber 15 through the vacuum hole 26, the interior of the central shaft 20, the vent hole 24, and the adsorption chamber 15. The second plug 27 can seal one end of the central shaft 20, facilitating the evacuation of the adsorption holes 11 corresponding to the adsorption chamber 15 through the vacuum pump via the vacuum hole 26, the interior of the central shaft 20, the vent hole 24, and the adsorption chamber 15.

[0032] like Figure 4 and Figure 6 As shown, a sealing strip 251 is provided at the end of the baffle 25 furthest from the central axis 20, and the sealing strip 251 contacts the inner circumferential surface of the roller body 12. The sealing strip 251 serves two purposes: firstly, it provides a seal, ensuring that only the adsorption holes 11 corresponding to the adsorption chamber 15 are evacuated when the adsorption holes 11 are evacuated using a vacuum pump; secondly, it prevents damage to the baffle 25 during the rotation of the roller body 10. The sealing strip 251 may be made of materials such as silicone or rubber.

[0033] The non-adsorption chamber 16 is provided with a mounting bracket (not shown in the figure), which is set on the outer circumferential surface of the central shaft 20, and the evaporator 60 is set on the mounting bracket.

[0034] Furthermore, such as Figures 1 to 4 , Figure 6 and Figure 7 As shown, the cooling adsorption roller also includes a width adjustment component 70, which is used to adjust the adsorption width of the cooling adsorption roller to adapt to substrates of different widths, thus having a wide range of applications. The width adjustment component 70 includes a drive module 71, a synchronous belt module 72, a first lead screw 73, a second lead screw 74, an optical axis 75, a first movable block 76, and a second movable block 77.

[0035] A bracket 28 is fitted around the outer periphery of the central shaft 20. The bracket 28 is located between the first cover plate 13 of the roller body 10 and one end of the central shaft 20, specifically between the first cover plate 13 of the roller body 10 and the air extraction hole 26. The drive module 71 is mounted on the bracket 28. The first lead screw 73, the second lead screw 74, and the optical shaft 75 are all located within the adsorption chamber 15. The optical shaft 75 is located between the first lead screw 73 and the second lead screw 74, and both ends of the optical shaft 75 are connected to the first ends of the first lead screw 73 and the second lead screw 74, respectively, via couplings 751. The first lead screw 73 and the second lead screw 74 are rotatably mounted on the outer periphery of the central shaft 20. The second end of the first lead screw 73 passes through the third hole 212 of the connecting block 21 and the bracket hole of the bracket 28, and is connected to the drive module 71 via the synchronous belt module 72. The threads of the first lead screw 73 and the second lead screw 74 have opposite directions. The first movable block 76 is threadedly connected to the first lead screw 73, and the second movable block 77 is threadedly connected to the second lead screw 74. The first movable block 76 and the second movable block 77 are the same size and shape, and are symmetrically arranged about the center of the adsorption chamber 15. The two ends of the first movable block 76 and the second movable block 77 respectively cooperate with the side of the two baffles 25 that are close to each other. The bottom ends of the first movable block 76 and the second movable block 77 are respectively provided with a first arc surface 761, which cooperates with the outer peripheral surface of the central shaft 20. The top ends of the first movable block 76 and the second movable block 77 are respectively provided with a second arc surface 762, which cooperates with the inner peripheral surface of the body 12 of the roller 10. The vent hole 24 is located between the first movable block 76 and the second movable block 77. The drive module 71 is used to drive the first lead screw 73 to rotate via the synchronous belt module 72, thereby driving the optical axis 75 and the second lead screw 74 to rotate. Since the threads of the first lead screw 73 and the second lead screw 74 have opposite directions, the first movable block 76 and the second movable block 77 can be driven to move towards each other or away from each other via the first lead screw 73 and the second lead screw 74. In practical applications, when the substrate passes over the body 12 of the roller 10 and is located above the adsorption chamber 15, it is vented through the vacuuming device via the air extraction hole 26, the interior of the central shaft 20, and the vent hole 2. 4. The adsorption chamber 15 is evacuated to the adsorption holes 11 located between the first movable block 76 and the second movable block 77, so that the substrate can be adsorbed onto the body 12 of the roller 10 through the adsorption holes 11 located between the first movable block 76 and the second movable block 77. The first movable block 76 and the second movable block 77 are driven to move towards each other or away from each other by the drive module 71, so as to reduce or increase the length of the adsorption chamber 15, and thus reduce or increase the number of adsorption holes 11 corresponding to the adsorption chamber 15, thereby realizing the adjustment of the adsorption width.

[0036] Both the first lead screw 73 and the second lead screw 74 are rotatably mounted on the outer circumferential surface of the central shaft 20. Specifically, the outer circumferential surface of the central shaft 20 is provided with a fan-shaped first mounting seat 731 corresponding to the first lead screw 73. The two ends of the first mounting seat 731 respectively cooperate with the side of the two baffles 25 that are close to each other. The top end of the first mounting seat 731 does not contact the inner circumferential surface of the body 12 of the roller 10. The first end of the first lead screw 73 passes through the first mounting hole of the first mounting seat 731 and is connected to one end of the optical shaft 75 through the coupling 751. A first flange bearing 7311 is provided in the first mounting hole and is sleeved on the outer circumference of the first lead screw 73. Two fan-shaped second mounting seats 741, corresponding to the second lead screw 74, are provided on the outer circumferential surface of the central shaft 20. The two second mounting seats 741 are spaced apart along the axial direction of the central shaft 20. The two ends of the second mounting seats 741 respectively cooperate with the side of the two baffles 25 that are close to each other. The top end of the second mounting seat 741 does not contact the inner circumferential surface of the body 12 of the roller 10. The first end of the second lead screw 74 passes through the second mounting hole of one of the second mounting seats 741 and is connected to the other end of the optical shaft 75 through the coupling 751. The second end of the second lead screw 74 passes through the second mounting hole of the other second mounting seat 741 and is located between the other second mounting seat 741 and the second cover plate 14 of the roller 10. A second flange bearing 7411 is provided in the second mounting hole and is sleeved on the outer circumference of the second lead screw 74. The first movable block 76 is located between the first mounting seat 731 and the second end of the first lead screw 73, and the second movable block 77 is located between the two second mounting seats 741.

[0037] A connecting flange bearing 213 is provided in the third hole 212 of the connecting block 21. The connecting flange bearing 213 is sleeved on the outer periphery of the first lead screw 73 to provide rotational support for the first lead screw 73. The connecting flange bearing 213 also serves as a seal.

[0038] In this embodiment, the drive module 71 includes an adjusting shaft 711 and an adjusting handwheel 712. The adjusting shaft 711 passes through a through hole in the bracket 28, and an adjusting bearing seat 7111 is sleeved on the outer periphery of the adjusting shaft 711. The adjusting bearing seat 7111 is disposed on one side of the bracket 28 to provide rotational support for the adjusting shaft 711. The second end of the first lead screw 73 is connected to one end of the adjusting shaft 711 via a timing belt module 72, and the other end of the adjusting shaft 711 is connected to the adjusting handwheel 712. By rotating the adjusting handwheel 712, the adjusting shaft 711 can be driven to rotate, thereby driving the first lead screw 73 to rotate via the timing belt module 72.

[0039] The adjustment handwheel 712 is a textured digital handwheel. The textured digital handwheel is an existing structure and will not be described in detail here. The textured digital handwheel indicates the angle of rotation, thus enabling precise adjustment of the adsorption width.

[0040] The synchronous belt module 72 includes a driving pulley 721, a driven pulley 722, and a synchronous belt 723 sleeved on the outer periphery of the driving pulley 721 and the driven pulley 722. The driving pulley 721 is sleeved on the outer periphery of one end of the adjusting shaft 711, and the driven pulley 722 is sleeved on the outer periphery of the second end of the first lead screw 73. By rotating the adjusting handwheel 712, the adjusting shaft 711 can be rotated, which in turn drives the driving pulley 721 to rotate. Under the transmission action of the driven pulley 722 and the synchronous belt 723, the first lead screw 73 can be rotated.

[0041] In an alternative embodiment, the drive module 71 includes a rotary motor disposed on one side of the bracket 28. The output shaft of the rotary motor passes through a through hole in the bracket 28, and the second end of the first lead screw 73 is connected to the output shaft of the rotary motor via a timing belt module 72. Specifically, the drive pulley 721 of the timing belt module 72 is sleeved on the outer circumference of the output shaft of the rotary motor. The rotary motor drives the drive pulley 721 to rotate, which, under the action of the driven pulley 722 and the timing belt 723, drives the first lead screw 73 to rotate.

[0042] Understandably, a rotary motor can also be replaced by a rotary cylinder.

[0043] The driving pulley 721, the driven pulley 722, and the timing belt 723 are housed in a protective cover 281, which is located on the other side of the bracket 28. The protective cover 281 protects the driving pulley 721, the driven pulley 722, and the timing belt 723.

[0044] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A cooling adsorption roller, characterized in that, The roller body includes a hollow central shaft and a drive shaft. Multiple adsorption holes are evenly distributed on the outer circumferential surface of the roller body, and these holes communicate with the interior of the roller body. The central shaft and the drive shaft are coaxially disposed within the roller body. One end of the central shaft extends from a first through hole at one end of the roller body. A connecting block is sleeved on the outer circumference of the central shaft, located within the first through hole and the roller body, and rotatably connected to the roller body. The other end of the central shaft is rotatably connected to one end of the drive shaft, and the other end of the drive shaft extends from a second through hole at the other end of the roller body. The drive shaft is fixedly connected to the inner wall of the second through hole. Two baffles are circumferentially spaced on the outer circumferential surface of the shaft. The baffles are located inside the roller body, and their two ends are close to the two ends of the roller body. The end of the baffle away from the central shaft is in contact with the inner circumferential surface of the roller body. An adsorption cavity is formed between the side of the two baffles that are close to each other and the inner circumferential surface of the roller body. A non-adsorption cavity is formed between the side of the two baffles that are far apart from each other and the inner circumferential surface of the roller body. A vent hole is provided on the outer circumferential surface of the central shaft. The vent hole is connected to the interior of the central shaft and the adsorption cavity. An evaporator is provided in the non-adsorption cavity. The liquid inlet end and liquid outlet end of the evaporator extend from the first hole and the second hole of the connecting block, respectively.

2. The cooling adsorption roller according to claim 1, characterized in that, The roller body includes an annular body, a first cover plate, and a second cover plate. Multiple adsorption holes are evenly distributed on the outer circumferential surface of the body. The first cover plate is disposed at one end of the body, and the second cover plate is disposed at the other end of the body. The central shaft and the transmission shaft are coaxially disposed within the body. The first cover plate has a first through hole, and the second cover plate has a second through hole. The connecting block is located within the first through hole and the body and is rotatably connected to the body. The baffle is located within the body, and the end of the baffle away from the central shaft contacts the inner circumferential surface of the body. An adsorption cavity is formed between the side of the two baffles that are close together and the inner circumferential surface of the body, and a non-adsorption cavity is formed between the side of the two baffles that are far apart and the inner circumferential surface of the body.

3. The cooling adsorption roller according to claim 1, characterized in that, A sealing strip is provided at one end of the baffle away from the central axis. The sealing strip is in contact with the inner circumferential surface of the roller body. A first plug is provided inside the central axis, and the first plug is close to the other end of the central axis.

4. The cooling adsorption roller according to claim 1, characterized in that, The cooling adsorption roller also includes a width adjustment assembly, which comprises a drive module, a synchronous belt module, a first lead screw, a second lead screw, an optical axis, a first movable block, and a second movable block. A bracket is fitted around the outer periphery of the central shaft, and the bracket is located between the roller body and one end of the central shaft. The drive module is mounted on the bracket. The first lead screw, the second lead screw, and the optical axis are all located within the adsorption cavity. The optical axis is located between the first lead screw and the second lead screw, and its two ends are respectively connected to the first end of the first lead screw and the first end of the second lead screw. The first lead screw and the second lead screw are rotatably mounted on the outer periphery of the central shaft. The second end of the first lead screw passes through the third hole of the connecting block and the bracket hole of the bracket. The synchronous belt module is connected to the drive module. The threads of the first lead screw and the second lead screw have opposite directions. The first movable block is threadedly connected to the first lead screw, and the second movable block is threadedly connected to the second lead screw. The first movable block and the second movable block are symmetrically arranged about the center of the adsorption cavity. The two ends of the first movable block and the second movable block respectively cooperate with the side of the two baffles that are close to each other. The bottom end of the first movable block and the second movable block are respectively provided with a first arc surface, which cooperates with the outer peripheral surface of the central shaft. The top end of the first movable block and the second movable block are respectively provided with a second arc surface, which cooperates with the inner peripheral surface of the roller body. The vent is located between the first movable block and the second movable block.

5. The cooling adsorption roller according to claim 4, characterized in that, The drive module includes an adjustment shaft and an adjustment handwheel. The adjustment shaft passes through the through hole of the bracket, and an adjustment bearing seat is sleeved on the outer periphery of the adjustment shaft. The adjustment bearing seat is located on one side of the bracket. The second end of the first lead screw is connected to one end of the adjustment shaft through the synchronous belt module, and the other end of the adjustment shaft is connected to the adjustment handwheel.

6. The cooling adsorption roller according to claim 5, characterized in that, The adjustment handwheel is a textured digital handwheel.

7. The cooling adsorption roller according to claim 5, characterized in that, The synchronous belt module includes a driving pulley, a driven pulley, and a synchronous belt sleeved on the outer periphery of the driving pulley and the driven pulley. The driving pulley is sleeved on the outer periphery of one end of the adjusting shaft, and the driven pulley is sleeved on the outer periphery of the second end of the first lead screw.

8. The cooling adsorption roller according to claim 4, characterized in that, The drive module includes a rotary motor or a rotary cylinder, which is disposed on one side of the bracket. The output shaft of the rotary motor or rotary cylinder passes through the through hole of the bracket. The second end of the first lead screw is connected to the output shaft of the rotary motor or rotary cylinder through the synchronous belt module.

9. The cooling adsorption roller according to claim 1, characterized in that, An air extraction hole is provided on the outer circumferential surface of one end of the central shaft, and the air extraction hole is connected to the interior of the central shaft. A second plug is provided inside one end of the central shaft.

10. The cooling adsorption roller according to claim 1, characterized in that, A mounting flange is fitted around one end of the central shaft, and the mounting flange has a flange mounting hole. A seated bearing is fitted around the outer periphery of the transmission shaft, and the seated bearing has a bearing mounting hole.

Images