A cycle membrane press

CN122787166APending Publication Date: 2026-09-22SUZHOU HONGXIN EXQUISITE MASCH MFG CO LTD
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Patent Information

Application Number
CN202610961154.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-30
Publication Date
2026-09-22

AI Technical Summary

Technical Problem

[0002]UV循环膜压机主要用于板材UV漆面的覆膜定型与光固化加工,板材经膜压贴合、UV光照固化并完成自动揭膜后,板面漆膜虽已初步定型,但整体表面温度较高,漆膜尚未完全冷却硬化;现有技术中,板材覆膜完成后多采用自然风冷或普通实心输送辊自然散热方式进行降温,缺乏针对性的强制冷却结构与高效换热体系,在实际连续生产过程中存在诸多缺陷与不足,严重影响板材成品质量与生产线稳定性

Benefits of technology

[0019]上述一种循环膜压机,通过转动轴持续旋转,持续切割管内冷却液形成强湍流,破除管壁高温滞水层,增大冷热介质交换速率,消除连续生产换热衰减瓶颈,提升整体冷却换热效率;挡板随限位杆与凸起周期性抵接、分离实现通孔自动开合,管内流通截面交替变化形成脉冲射流,持续冲击冷却管内壁,避免筒壁局部积热,管内水温分布更均匀,外层辊筒表面温差小,板材整幅冷却一致;扰流片旋转带动推板顶推竖杆,联动摆动板、横杆驱使转动片往复旋转,对冷却管边角死角水流二次扰动,消除换热盲区,进一步均衡管内周向、轴向水温。

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Abstract

The present application relates to the technical field of plate processing, in particular to a circulating film press, comprising a rack and a conveying belt transmission installed in the rack, further comprising: a fixed frame arranged at one side of the discharge port of the rack, two sides of which are symmetrically provided with water storage grooves, and the water storage grooves are respectively connected with water inlet pipes and water outlet pipes; cooling pipes are fixedly installed in the fixed frame in a transverse linear array, and a plurality of cooling pipes are provided, and the two ends of the cooling pipes are connected with the two water storage grooves; rollers are movably sleeved outside the cooling pipes and are rotatably connected with the fixed frame at two ends; and a turbulence assembly is arranged in the cooling pipe and is used for stirring the liquid in the cooling pipe. The circulating film press provided by the present application continuously rotates through the rotating shaft, continuously cuts the cooling liquid in the pipe to form strong turbulent flow, breaks the high-temperature stagnant water layer on the pipe wall, increases the heat exchange rate of the cold and hot medium, eliminates the heat exchange attenuation bottleneck of continuous production, and improves the overall cooling and heat exchange efficiency.
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Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, and in particular to a circulating membrane press. Background Technology

[0002] UV circulating membrane presses are mainly used for the coating, shaping, and curing of UV-coated sheets. After the sheets are laminated, cured by UV light, and automatically peeled off, the paint film on the sheet surface has been initially shaped, but the overall surface temperature is still high and the paint film has not been completely cooled and hardened. In existing technologies, after the sheets are coated, they are mostly cooled by natural air cooling or natural heat dissipation by ordinary solid conveyor rollers. There is a lack of targeted forced cooling structures and efficient heat exchange systems. In actual continuous production, there are many defects and deficiencies, which seriously affect the quality of finished sheets and the stability of the production line.

[0003] First, traditional cooling methods have extremely low heat dissipation efficiency. After the board is discharged, it relies on natural convection to dissipate heat, which is slow. The high-temperature paint film remains in a softened state for a long time, which easily leads to quality problems such as film-pressed texture rebound, blurred texture, and uneven gloss. It is impossible to stably lock in the delicate skin feel, matte or high-gloss effect of film-pressed replication, resulting in poor consistency of finished board surface and low yield rate.

[0004] Secondly, the surface of the UV coating film that has not been cured at high temperature is prone to static electricity. During the traditional open natural cooling process, the board surface is exposed to the workshop air for a long time, which will continuously absorb suspended dust and fine particles, causing defects such as pitting, particles, and dirt on the board surface, which greatly reduces the surface smoothness and appearance quality of the board and cannot meet the coating acceptance standards of high-end decorative boards.

[0005] Finally, due to the slow cooling rate of the boards and the delayed hardening of the paint film, the paint surface that has not been fully cooled is prone to sticking, indentation, scratches, and delamination during the board conveying and stacking process. This not only causes batch scrap but also limits the conveying speed and continuous stacking operation of the production line, greatly reducing the overall production efficiency and making it difficult to adapt to the needs of high-speed automated mass production. Summary of the Invention

[0006] Therefore, it is necessary to provide a circulating membrane press that can accelerate the cooling of the sheet material to address the aforementioned technical problems.

[0007] The present invention provides a circulating membrane press, comprising a frame and a conveyor belt with transmission installed inside the frame, and further comprising: A fixed frame is located on one side of the discharge port of the machine frame, and water storage tanks are symmetrically opened on both sides of the frame, with water inlet pipe and water outlet pipe respectively connected through it. The cooling pipes are fixedly installed in a horizontal linear array inside the fixing frame, and multiple pipes are set. Both ends are connected to the water storage tanks on both sides. The roller is movably sleeved outside the cooling pipe, and its two ends are rotatably connected to both sides of the fixed frame. A flow-stirring component, located inside the cooling pipe, is used to agitate the liquid inside the cooling pipe.

[0008] In one embodiment, the turbulence-disrupting component includes a rotating shaft that is movably disposed inside the cooling pipe, with its two ends rotatably connected to the inner walls of the water storage tanks on both sides. A plurality of turbulence-disrupting plates are fixedly sleeved in a transverse linear array outside the rotating shaft, and the turbulence-disrupting plates rotate inside the cooling pipe.

[0009] In one embodiment, the annular array of spoilers has multiple through holes, and the spoiler has a vertical groove above the through holes. The vertical groove is connected to the through holes, and a baffle is movably disposed in the vertical groove. The baffle is slidably connected to the through holes.

[0010] In one embodiment, the baffle surface has multiple circular holes extending through it.

[0011] In one embodiment, the top of the baffle extends beyond the spoiler, and a return spring is fixedly fixed on both sides of its end in an axially symmetrical manner. The other end of the return spring is fixedly connected to the surface of the spoiler, and the return spring is located on both sides of the vertical groove.

[0012] In one embodiment, multiple rings are fixedly installed in a transverse linear array inside the cooling pipe, and each ring corresponds to a baffle. Multiple protrusions are arranged in an annular array on the inner wall of the rings. A limit rod is fixedly installed on the top of the baffle, and the end of the limit rod away from the baffle is slidably embedded in the inner wall of the rings and the protrusions.

[0013] In one embodiment, the ring has a horizontal hole at the protrusion, a horizontal bar is rotatably mounted in the horizontal hole, and a rotating piece is fixedly sleeved on the outside of the horizontal bar.

[0014] In one embodiment, the protrusion has a slot on one side of the transverse hole, one end of the crossbar movably passes through the side wall of the transverse hole, and the end is rotatably connected to the inner wall of the slot.

[0015] In one embodiment, a swing plate is fixedly sleeved on the outer side of the inner portion of the crossbar in the slot, and one side of the swing plate is fixedly connected to the inner wall of the slot by a torsion spring, which is movably sleeved on the outer side of the crossbar.

[0016] In one embodiment, a vertical rod is movably arranged in the slot, the top of the vertical rod is movably abutting against the bottom of the swing plate, the end of the vertical rod away from the swing plate movably penetrates through the inner wall of the bottom of the slot, and the end is located outside the protrusion. A push plate is fixedly arranged at the end of the baffle, and the top of the push plate is movably abutting against the bottom of the vertical rod.

[0017] In one embodiment, a movable plate is fixedly sleeved on the outside of the vertical rod, the movable plate is slidably connected to the slot, and the bottom of the movable plate is fixedly connected to the inner wall of the bottom of the slot by a positioning spring.

[0018] In one embodiment, a bent pipe is fixedly provided at both ends of the protrusion. One end of the bent pipe is located inside the groove, and the other end is connected to the cooling pipe. A push rod is movably provided inside the end of the bent pipe located in the groove. The end of the push rod away from the bent pipe is fixedly connected to the top of the movable plate.

[0019] The aforementioned circulating membrane press, through the continuous rotation of the rotating shaft, continuously cuts the coolant inside the pipe to form strong turbulence, breaks through the high-temperature stagnant water layer on the pipe wall, increases the exchange rate of hot and cold media, eliminates the bottleneck of heat exchange attenuation during continuous production, and improves the overall cooling and heat exchange efficiency; the baffle, along with the periodic contact and separation of the limit rod and the protrusion, realizes the automatic opening and closing of the through hole, and the alternating change of the flow cross section inside the pipe forms a pulse jet, which continuously impacts the inner wall of the cooling pipe, avoids local heat accumulation on the cylinder wall, and makes the water temperature distribution inside the pipe more uniform, with a small temperature difference on the surface of the outer roller, and consistent cooling of the entire plate; the rotation of the turbulence plate drives the push plate to push the vertical rod, and the linkage swing plate and crossbar drive the rotating plate to rotate back and forth, which secondary disturbs the water flow in the dead corners of the cooling pipe, eliminates the heat exchange blind zone, and further equalizes the circumferential and axial water temperature inside the pipe. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the fixing frame in this invention; Figure 3 This is a schematic diagram of the cooling pipe structure in this invention; Figure 4 This is a schematic diagram of the water storage tank in this invention; Figure 5 This is a schematic diagram showing the positional relationship between the cooling pipe and the roller in this invention; Figure 6 This is a schematic diagram of the internal structure of the cooling pipe in this invention; Figure 7 This is a schematic diagram of the structure of the baffle in this invention; Figure 8 for Figure 7 Enlarged diagram of part A in the middle; Figure 9 This is a schematic diagram of the baffle structure in this invention; Figure 10 for Figure 9 Enlarged diagram of section B; Figure 11 This is a schematic diagram of the slot structure in this invention.

[0022] Figure label: 1. Frame; 2. Conveyor belt; 3. Fixed frame; 31. Water storage tank; 4. Water inlet pipe; 5. Water outlet pipe; 6. Cooling pipe; 7. Roller; 8. Baffle assembly; 81. Rotating shaft; 82. Baffle plate; 83. Through hole; 84. Vertical groove; 85. Baffle plate; 86. Round hole; 9. Circular ring; 91. Horizontal hole; 10. Return spring; 11. Protrusion; 111. Groove opening; 12. Limiting rod; 13. Horizontal bar; 14. Rotating plate; 15. Swing plate; 16. Torsion spring; 17. Vertical bar; 18. Push plate; 19. Movable plate; 20. Positioning spring; 21. Bend; 22. Push rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] The following is combined with Figures 1-11 This invention describes a circulating membrane press.

[0029] like Figures 1-4 As shown, this embodiment discloses a circulating membrane press, which is mainly used in the rapid cooling and shaping process after UV membrane curing of sheet materials. It effectively solves the industry technical problems such as low cooling efficiency of traditional membrane presses, paint film texture rebound, easy dust absorption on the board surface, board stacking and adhesion, and uneven cooling. The overall equipment includes a frame 1 and a conveyor belt 2 with transmission installed inside the frame 1. The conveyor belt 2 is used to drive the sheet material through the frame 1 and use the membrane press to coat the surface of the sheet material. A fixed frame 3 is fixedly installed at the discharge port of the frame 1. The fixed frame 3 serves as the bearing foundation of the discharge cooling assembly. The overall structure is stable and the assembly precision is high, which can ensure the structural stability under long-term high-speed conveying and cooling conditions.

[0030] See Figures 2-5As shown, the fixed frame 3 has symmetrically arranged water storage tanks 31 on both sides along the axial direction. The water storage tanks 31 on both sides are respectively connected to the inlet pipe 4 and the outlet pipe 5. The water storage tanks 31 on both sides form independent inlet and outlet chambers, which can evenly distribute and merge the cooling water, ensuring that the water flow of each cooling pipe 6 is balanced, and avoiding the problem of temperature difference in the whole plate caused by the flow difference of a single pipe. The other end of the outlet pipe 5 and the inlet pipe 4 are connected to the container of cooling solution. Multiple cooling pipes 6 are fixedly installed in a horizontal linear array inside the fixed frame 3. Multiple sets of cooling pipes 6 are arranged in parallel and equidistant, fully covering the conveying width of the plate. The two ends of the cooling pipes 6 are respectively connected to the water storage tanks 31 on both sides, so that the cooling water can be evenly distributed from one side of the water storage tank 31 into the interior of each cooling pipe 6. After heat exchange, it is collected and discharged to the other side of the water storage tank 31, forming a continuous and uninterrupted closed-loop cooling water circuit, ensuring a continuous and stable supply of cooling medium.

[0031] Each cooling pipe 6 is movably fitted with a roller 7. The two ends of the roller 7 are rotatably connected to the two sides of the fixed frame 3. As a conveying and bearing component that directly contacts the high-temperature plate after coating, the roller 7 can rotate freely relative to the internally fixed cooling pipe 6, which not only achieves stable conveying of the plate, but also relies on the low-temperature characteristics of the cooling pipe 6 to perform contact-type forced cooling of the plate. In order to solve the core problems of air insulation layer, lag in cold energy transfer, and low heat exchange efficiency between the traditional hollow cooling pipe 6 and the rotating roller 7, this device fills the gap between the outer wall of the cooling pipe 6 and the inner wall of the roller 7 with a high thermal conductivity metal bushing. The high thermal conductivity bushing is made of thin-walled copper alloy material, which has the advantages of high thermal conductivity, good wear resistance and small deformation coefficient. The inner wall of the bushing is tightly attached to the outer wall of the cooling pipe 6, and the outer wall of the bushing is attached to the inner wall of the roller 7, completely eliminating the air insulation gap of the traditional structure. This structure enables rapid, uniform, and lossless transfer of the low-temperature cooling energy from the coolant inside the cooling pipe 6 to the surface of the outer roller 7, significantly improving the speed of heat exchange response. This keeps the surface of the roller 7 consistently at a uniformly low temperature. During the conveying process of the sheet material through the roller 7, the bottom surface fully adheres to the low-temperature roller surface, quickly removing the high temperature generated by the curing of the paint film and rapidly reducing the surface temperature of the sheet material. This achieves rapid setting of the UV paint film and fundamentally suppresses the texture rebound phenomenon of the high-temperature paint film. At the same time, the high thermal conductivity bushing has self-lubricating properties, which can significantly reduce the frictional resistance of the roller 7 relative to the cooling pipe 6, ensuring smooth, slip-free, and scratch-free conveying of the sheet material, balancing conveying accuracy and efficient cooling performance.

[0032] See Figures 6-8As shown, a turbulence-inducing assembly 8 is installed inside the cooling pipe 6 to dynamically agitate the circulating coolant and enhance heat transfer. The turbulence-inducing assembly 8 includes a rotating shaft 81, which is movably mounted inside the cooling pipe 6. Both ends of the rotating shaft 81 are rotatably connected to the inner walls of the two side water storage tanks 31, ensuring high coaxiality and smooth, unobstructed rotation of the rotating shaft 81. Multiple sets of turbulence-inducing vanes 82 are fixedly mounted in a transverse linear array on the outside of the rotating shaft 81. These vanes 82 synchronously follow the rotating shaft 81 in a circular rotation, continuously agitating the coolant inside the cooling pipe 6 in all directions. In traditional cooling pipes 6, the coolant inside is mostly in laminar flow, and a high-temperature stagnant water boundary layer easily forms on the pipe wall, resulting in slow exchange of hot and cold media. Long-term operation can easily lead to heat accumulation on the pipe wall and cooling attenuation. However, the rotating baffle 82 can continuously cut the water flow and disrupt the stable laminar flow state, causing the coolant to form high-intensity turbulence. This forces the low-temperature cold water in the center of the pipe to mix rapidly with the high-temperature hot water on the pipe wall, completely breaking down the thermal resistance layer on the pipe wall, significantly improving the overall heat transfer coefficient of cooling pipe 6, and solving the heat transfer bottleneck of long-term continuous production.

[0033] The baffle plate 82 has multiple through holes 83 arranged in a ring array on its surface. A vertical groove 84 is located above the through holes 83 on the baffle plate 82, and the vertical groove 84 is connected to the through holes 83. A baffle 85 is movably fitted inside the vertical groove 84, forming a sliding fit with the through holes 83. This allows the baffle 85 to slide up and down along the vertical groove 84, switching between blocking and allowing flow through the through holes 83. Through the staggered arrangement of multiple baffle plates 82, the through holes 83 are misaligned, preventing the cooling water from forming a straight-through short-circuit flow. This effectively extends the heat exchange path of the coolant inside the cooling pipe 6, improving the cooling capacity utilization rate. Multiple circular holes 86 are formed through the surface of the baffle 85. Even with the baffle 85 slightly blocking the through holes 83, some water flow channels are still maintained, preventing the through holes 83 from being completely blocked, which could cause water pressure buildup and a sudden drop in flow. This ensures both the pulse turbulence effect and the overall stable water circulation flow.

[0034] See Figures 8-10 As shown, the top of the baffle 85 extends beyond the surface of the baffle plate 82, and symmetrically fixed at both ends of the top of the baffle 85 are reset springs 10. The other end of the reset spring 10 is fixedly connected to the surface of the baffle plate 82. The two sets of reset springs 10 are symmetrically arranged on both sides of the vertical groove 84, which can form a stable elastic reset constraint force on the baffle 85. When there is no external force interfering with the baffle 85, the reset spring 10 pulls the baffle 85 to reset, the through hole 83 is fully open, and the cooling water flows normally. When the baffle 85 is subjected to external force to abut and limit, the baffle 85 slides down along the vertical groove 84, forming a shielding and flow restriction on the through hole 83, causing the internal flow cross section of the cooling pipe 6 to change periodically, generating pulsed water flow impact, further enhancing the water disturbance effect and improving the heat exchange uniformity.

[0035] See Figure 8As shown, multiple sets of rings 9 are fixedly installed in a horizontal linear array inside the cooling pipe 6. The rings 9 correspond one-to-one with the baffles 82. The inner wall of the rings 9 is provided with multiple protrusions 11 in an annular array. The top of the baffle 85 is fixedly provided with a limiting rod 12. The top of the limiting rod 12 forms a sliding fit with the inner wall of the rings 9 and the protrusions 11. During the rotation of the baffles 82 with the rotating shaft 81, the limiting rod 12 periodically abuts against and disengages from the protrusions 11 with the circumferential motion. When the limiting rod 12 abuts against the protrusions 11, the baffle 85 is pressed down and slides down to block the through hole 83. When the limiting rod 12 is released from the constraint of the protrusions 11, the return spring 10 drives the baffle 85 to quickly return to its original position, and the through hole 83 is fully open again. This achieves the mechanical pulse turbulence effect of the periodic opening and closing of the through hole 83. It can adaptively enhance water flow turbulence without the need for an electrical control structure. The structure has high reliability and is maintenance-free.

[0036] See Figure 8 As shown, a horizontal hole 91 is provided in the ring 9 at the position of the protrusion 11. A horizontal rod 13 is installed inside the horizontal hole 91 and rotates horizontally. A rotating plate 14 is fixedly sleeved on the outside of the horizontal rod 13. The rotating plate 14 rotates synchronously with the horizontal rod 13, which can agitate the water flow inside the ring 9, further refine the eddy current in the pipe, eliminate local dead angles of water flow, make the axial and circumferential water temperature of the cooling pipe 6 more uniform, avoid the problem of local high temperature heat accumulation on the pipe wall, ensure the overall surface temperature of the roller 7 is consistent, make the entire board surface cool evenly, and eliminate quality defects such as uneven gloss of paint film and uneven texture depth caused by the left and right and front and back cooling temperature difference of the board.

[0037] See Figures 8-11 As shown, a slot 111 is formed on one side of the transverse hole 91 at the protrusion 11. One end of the crossbar 13 movably passes through the side wall of the transverse hole 91 and is rotatably connected to the inner wall of the slot 111, ensuring the stability of the crossbar 13's rotation structure without offset or jamming. A swing plate 15 is fixedly sleeved on the outside of the crossbar 13 inside the slot 111. A torsion spring 16 is fixedly connected between one side of the swing plate 15 and the inner wall of the slot 111. The torsion spring 16 is movably sleeved on the outside of the crossbar 13. The torsion spring 16 can provide an elastic restoring torque to the swing plate 15, so that the swing plate 15 maintains its initial posture without external force and can automatically reset after the swing is driven by external force, achieving the effect of reciprocating swing disturbance.

[0038] See Figures 7-10As shown, a vertical rod 17 is vertically movably mounted inside the slot 111. The top of the vertical rod 17 movably abuts against the bottom of the swing plate 15, and the bottom end of the vertical rod 17 movably penetrates the inner wall of the bottom of the slot 111 and extends to the outside of the protrusion 11. A push plate 18 is fixedly installed at the end of the baffle 82, and the top of the push plate 18 movably abuts against the bottom end of the vertical rod 17. During the rotation of the baffle 82, the push plate 18 periodically pushes the vertical rod 17, causing the vertical rod 17 to move vertically upward, which in turn pushes the swing plate 15 to deflect at an angle, causing the horizontal rod 13 and the rotating plate 14 to rotate synchronously, realizing mechanical linkage disturbance. The entire process is driven by the rotation power of the main shaft, without the need for an additional power source. It has a high degree of structural integration and strong linkage synchronization, and can continuously agitate the water flow in the dead corners of the cooling pipe 6, completely eliminating the heat exchange blind zone.

[0039] A movable plate 19 is fixedly fitted on the outside of the vertical rod 17. The movable plate 19 slides vertically with the inner wall of the slot 111. A positioning spring 20 is fixedly connected between the bottom of the movable plate 19 and the bottom inner wall of the slot 111. The positioning spring 20 can form a stable elastic reset effect for the vertical rod 17 and the movable plate 19. When the push plate 18 is disengaged from the bottom of the vertical rod 17, the positioning spring 20 pushes the movable plate 19 and the vertical rod 17 to move down and reset. The swing plate 15 is reset synchronously under the action of the torsion spring 16, completing one reciprocating disturbance cycle. The periodic mechanical swing continuously breaks the local static state of the water flow, continuously renews the hot water body of the pipe wall, and ensures that the inner wall of the cooling pipe 6 is always in full contact with the low temperature cold water.

[0040] See Figures 8-10 As shown, both ends of the protrusion 11 are fixedly equipped with bent pipes 21. One end of the bent pipe 21 is connected to the inside of the slot 111, and the other end is connected to the water passage inside the cooling pipe 6. The end of the bent pipe 21 located inside the slot 111 is movably equipped with a push rod 22. The top of the push rod 22 is fixedly connected to the top of the movable plate 19. During the reciprocating motion of the movable plate 19, the push rod 22 is simultaneously driven to extend and retract, so that a small water circulation suction and push effect is formed inside the bent pipe 21, realizing the micro-circulation convection of local water bodies, further enhancing the water exchange capacity of narrow dead corners such as the slot 111 and the corners of the ring 9, completely solving the problems of high water temperature and uneven heat exchange in dead corners of traditional water-cooled structures, and comprehensively improving the overall heat exchange efficiency inside the cooling pipe 6.

[0041] This embodiment achieves integrated functions of sheet material conveying, rapid cooling, and uniform heat exchange through the rapid transfer of cold energy via an external high thermal conductivity bushing and the coordinated operation of an internal multi-stage mechanical dynamic turbulence structure. Compared to traditional natural cooling and ordinary hollow water-cooled roller cooling structures, this device can rapidly reduce the surface temperature of the sheet material after coating and discharge, allowing the UV coating to harden and set quickly. This effectively eliminates quality defects such as texture rebound, electrostatic dust attraction, and sheet material stacking and adhesion. At the same time, the entire process is purely mechanical, with a high degree of automation, stable operation, and energy saving. It can be adapted to high-speed continuous sheet material membrane pressing production lines, significantly improving the quality of finished sheet materials and production efficiency.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A circulating membrane press, comprising a frame and a conveyor belt with transmission installed inside the frame, characterized in that, Also includes: A fixed frame is located on one side of the discharge port of the machine frame, and water storage tanks are symmetrically opened on both sides of the frame, with water inlet pipe and water outlet pipe respectively connected through it. The cooling pipes are fixedly installed in a horizontal linear array inside the fixing frame, and multiple pipes are set. Both ends are connected to the water storage tanks on both sides. The roller is movably sleeved outside the cooling pipe, and its two ends are rotatably connected to both sides of the fixed frame. A flow-stirring component, located inside the cooling pipe, is used to agitate the liquid inside the cooling pipe.

2. The circulating membrane press according to claim 1, characterized in that, The turbulence-disrupting component includes a rotating shaft, which is movably disposed inside the cooling pipe. Its two ends are rotatably connected to the inner walls of the water storage tanks on both sides. Multiple turbulence-disrupting plates are fixedly sleeved in a horizontal linear array outside the rotating shaft, and the turbulence-disrupting plates rotate inside the cooling pipe.

3. A circulating membrane press according to claim 2, characterized in that, The annular array of spoilers has multiple through holes, and the spoilers have vertical grooves above the through holes. The vertical grooves are connected to the through holes, and a baffle is movably installed in the vertical grooves. The baffles are slidably connected to the through holes.

4. A circulating membrane press according to claim 3, characterized in that, The baffle has multiple circular holes that run through its surface.

5. A circulating membrane press according to claim 3, characterized in that, The top of the baffle extends beyond the spoiler, and a return spring is fixedly fixed on both sides of its end in an axially symmetrical manner. The other end of the return spring is fixedly connected to the surface of the spoiler, and the return spring is located on both sides of the vertical groove.

6. A circulating membrane press according to claim 5, characterized in that, The cooling pipe has multiple rings fixedly installed in a horizontal linear array inside, and each ring corresponds to a baffle. The inner wall of the ring has multiple protrusions arranged in an annular array. A limit rod is fixedly installed on the top of the baffle, and the end of the limit rod away from the baffle is slidably embedded in the inner wall of the ring and the protrusion.

7. A circulating membrane press according to claim 6, characterized in that, The ring has a horizontal hole at the protrusion, and a horizontal bar is installed in the horizontal hole for lateral rotation. A rotating piece is fixedly sleeved on the outside of the horizontal bar.

8. A circulating membrane press according to claim 7, characterized in that, The protrusion has a slot on one side of the transverse hole, one end of the crossbar moves through the side wall of the transverse hole, and the other end is rotatably connected to the inner wall of the slot.

9. A circulating membrane press according to claim 8, characterized in that, A swing plate is fixedly sleeved on the outer side of the inner part of the crossbar in the slot. One side of the swing plate is fixedly connected to the inner wall of the slot by a torsion spring, and the torsion spring is movably sleeved on the outer side of the crossbar.

10. A circulating membrane press according to claim 9, characterized in that, A vertical rod is movably installed inside the slot. The top of the vertical rod is movably abutted against the bottom of the swing plate. The end of the vertical rod away from the swing plate moves through the inner wall of the bottom of the slot, and the end is located outside the protrusion. A push plate is fixedly installed at the end of the baffle plate, and the top of the push plate is movably abutted against the bottom of the vertical rod.

11. A circulating membrane press according to claim 10, characterized in that, A movable plate is fixedly sleeved on the outside of the vertical rod. The movable plate is slidably connected to the slot. The bottom of the movable plate is fixedly connected to the inner wall of the bottom of the slot by a positioning spring.

12. A circulating membrane press according to claim 11, characterized in that, The protrusion has two fixed bends at its ends. One end of the bend is located inside the groove, and the other end is connected to the cooling pipe. A push rod is movably installed inside the bend at the end located inside the groove. The end of the push rod away from the bend is fixedly connected to the top of the movable plate.