Shaping device for PVC coiled material

Abstract

The invention provides a PVC coiled material shaping device, and belongs to the technical field of PVC coiled material production devices, the PVC coiled material shaping device comprises an unwinding assembly and a winding assembly; the hot water tank and the cold water tank are sequentially arranged in the conveying direction of the PVC coiled materials, and the air drying assembly is arranged above the cold water tank. The hot water tank and the cold water tank are sequentially arranged between the unwinding assembly and the winding assembly of the coiled material, so that the size of the PVC coiled material can be stabilized, and the problem that the internal stress of the PVC coiled material is difficult to obviously eliminate when the PVC coiled material is shaped only through cooling water traditionally is solved. Moreover, the air drying assembly is arranged above the cold water tank, and moisture attached to the surface of the shaped PVC coiled material is removed by the air drying assembly, so that the influence of moisture residue on the quality of the PVC coiled material is prevented, and the shaping effect of the shaping device on the PVC coiled material is ensured.

Description

Technical Field

[0001] This invention relates to the field of PVC roll production equipment technology, and more particularly to a PVC roll shaping device. Background Technology

[0002] PVC (polyvinyl chloride) roll materials typically include PVC film, PVC wallpaper, and PVC flooring. After production, PVC film is rolled up for easy transport. However, PVC film is subjected to varying degrees of stretching during production, resulting in residual internal stress after winding. This stress can cause dimensional instability when the PVC film is unwound, affecting the customer's normal use of the PVC film products.

[0003] To address the aforementioned issues, Chinese patent document CN206870234U discloses a cooling and shaping device for PVC film production. This device precisely controls the temperature of the cooling water in a constant-temperature water bath, maintaining it within an optimal range to reduce PVC film shrinkage and wrinkling. However, the internal stress locked up during PVC film production due to melt orientation, rapid cooling and shaping, and winding tension requires a certain temperature to break the frozen state of the molecular chains before it can be released. Therefore, existing shaping devices, relying solely on cooling water to shape the PVC film, cannot significantly eliminate the internal stress of the PVC film and cannot fundamentally eliminate the dimensional instability of the PVC film.

[0004] It is evident that existing technologies still need improvement and enhancement. Summary of the Invention

[0005] The purpose of this invention is to provide a PVC roll forming device, which aims to solve the problem that existing PVC film forming devices, which rely solely on cooling water to form the PVC film, are unable to significantly eliminate the internal stress of the PVC film.

[0006] To achieve the above objectives, the solution provided by the present invention is as follows: A PVC roll forming device includes an unwinding assembly and a winding assembly; it also includes a hot water tank and a cold water tank arranged sequentially along the conveying direction of the PVC roll, and an air drying assembly disposed above the cold water tank.

[0007] Optionally, both the hot water tank and the cold water tank include a tank body, a first tensioning roller rotatably disposed within the tank body, and a second tensioning roller mounted above the tank body; the first tensioning roller is located side by side within the tank body; and the second tensioning roller is located between the two tank bodies.

[0008] Optionally, the air-drying assembly includes a first frame and an air-drying pipe assembly disposed on the first frame; The air drying duct assembly includes two first air outlet ducts mounted on a first frame; the two first air outlet ducts are located on both sides of the PVC roll material, and the first air outlet ducts are connected to a first blower; the air outlet end of the first blower is connected to the first air outlet duct. The length direction of the first air outlet duct is parallel to the width direction of the PVC roll, and a first air outlet is provided on the first air outlet duct along the length direction of the first air outlet duct; the first air outlet faces the surface of the PVC roll.

[0009] Optionally, the air-drying assembly further includes a first dewatering mechanism and a second dewatering mechanism; the first dewatering mechanism and the second dewatering mechanism are respectively mounted below and above the air-drying tube assembly, and both the first dewatering mechanism and the second dewatering mechanism include a pressure roller, a pressure bearing roller arranged side by side with the pressure roller, a frame-shaped frame located at both ends of the pressure roller and fixed on the first frame, and a horizontal drive mechanism connected to the frame-shaped frame; The frame is equipped with a first bearing that slides within it; both ends of the pressure roller are rotatably connected to the first bearing, and the axial direction of the pressure roller is parallel to the width direction of the PVC roll; the horizontal drive mechanism is connected to the first bearing for transmission. A second bearing is fixed to the outside of the frame; both ends of the pressure roller are rotatably connected to the second bearing.

[0010] Optionally, the PVC roll forming device further includes a second frame and a belt transition device; the belt transition device is disposed on the second frame and is located between the air drying assembly and the winding assembly; the belt transition device includes a first idler roller and a second idler roller mounted on the second frame, and a transition belt wound around the first idler roller and the second idler roller; the axial direction of the first idler roller and the axial direction of the second idler roller are both parallel to the width direction of the PVC roll.

[0011] Optionally, the first frame is provided with a first guide roller on the side facing the winding assembly; and a second air outlet is fixedly provided on the first frame; the length direction of the second air outlet and the axial direction of the first guide roller are both parallel to the width direction of the PVC roll, and a second air outlet is provided on the second air outlet, the second air outlet facing the back of the downward conveying PVC roll. The second air outlet pipe is connected to a blower branch pipe; the air outlet end of the first blower is connected to a blower main pipe, which is connected to the first air outlet pipe; the blower branch pipe is connected to the blower main pipe.

[0012] Optionally, the unwinding assembly includes a third frame, a first unwinding shaft rotatably mounted on the third frame, a traction roller rotatably mounted on the third frame, and a first drive mechanism for driving the traction roller to rotate; the axial direction of the first unwinding shaft and the axial direction of the traction roller are both parallel to the width direction of the PVC roll.

[0013] Optionally, the winding assembly includes a fourth frame, a second guide roller rotatably mounted on the fourth frame, a second unwinding shaft rotatably mounted on the fourth frame, a first support roller rotatably mounted on the fourth frame, a second support roller rotatably mounted on the fourth frame, and a second drive mechanism for driving the first and second support rollers to rotate; the second guide roller, the second unwinding shaft, the first support roller, and the second support roller are arranged sequentially along the conveying direction of the PVC roll; a winding station groove is formed between the first support roller and the second support roller; and a roll of copy paper is loaded on the second unwinding shaft.

[0014] Optionally, two parallel limiting plates are vertically mounted above the winding station slot; the limiting plates have a limiting surface perpendicular to the axis of the first support roller. The fourth frame has vertical poles on both sides of the first support roller, and an adjusting rod is horizontally inserted through the poles; the adjusting rod is connected to the limiting plate, and the length direction of the adjusting rod is parallel to the first support roller; a locking screw that abuts against the surface of the adjusting rod is also inserted into the pole.

[0015] Optionally, a third air outlet pipe is fixed on the side of the fourth frame facing the air drying assembly. A second blower is provided at one end of the third air outlet pipe, and the air outlet of the second blower is connected to the third air outlet pipe. A third air outlet is provided on the third air outlet pipe, and the third air outlet faces the PVC roll material.

[0016] The beneficial effects of this invention are as follows: This invention provides a PVC roll forming device. By sequentially arranging a hot water tank and a cold water tank between the unwinding and winding components of the roll, the PVC roll can first break the frozen state of the PVC roll molecular chains through the heat energy of the hot water in the hot water tank before being formed in the cold water tank. This allows the internal stress locked by melting orientation, rapid cooling and forming, and winding tension during the PVC roll production process to be fully released. Then, the cooling water in the cold water tank cools and forms the PVC roll after the stress is released, thereby stabilizing the dimensions of the PVC roll after the stress is released. This solves the problem that traditional forming devices, which only use cooling water to form PVC rolls, cannot significantly eliminate the internal stress of PVC rolls.

[0017] Furthermore, by installing a drying component above the cold water tank, the present invention removes the moisture adhering to the surface of the PVC roll after shaping, thereby preventing moisture residue from affecting the quality of the PVC roll and ensuring the shaping effect of the shaping device on the PVC roll. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the PVC roll forming device provided by the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the PVC roll forming device provided by the present invention. Figure 2 .

[0021] Figure 3 yes Figure 2 Enlarged view of part A in the middle.

[0022] Figure 4 This is a schematic diagram of the structure of the hot water tank. Figure 1 .

[0023] Figure 5 This is a schematic diagram of the structure of the hot water tank. Figure 2 .

[0024] Figure 6 This is a schematic diagram of the structure of the air-drying component.

[0025] Figure 7 This is a schematic diagram of the first structural form of the air drying pipe assembly provided by the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the second type of air drying pipe assembly provided by the present invention.

[0027] Figure 9 yes Figure 8 Enlarged view of section B.

[0028] Figure 10 This is a schematic diagram of the unwinding assembly.

[0029] Figure 11 This is a schematic diagram of the structure of the third air outlet duct.

[0030] Figure 12 This is a partial structural diagram of the winding assembly.

[0031] Explanation of icon numbers: 10-Unwinding assembly; 101-Third frame; 102-First unwinding shaft; 103-Traction roller; 104-First drive mechanism; 20a-Hot water tank; 20b-Cold water tank; 201-Tank body; 202-First tension roller; 203-Second tension roller; 204-Baffle plate; 205-Filter screen plate; 206-Drain pipe; 30-Drying assembly; 301-First frame; 302-Drying duct assembly; 3021-First air outlet duct; 3021a-First air outlet; 3022-First blower; 3023-Main blower duct; 303a-First dewatering mechanism; 303b-Second dewatering mechanism; 3031-Pressure roller; 3032-Pressure bearing roller; 3033-Frame; 3034-Horizontal drive mechanism; 3035-First bearing; 3036-Second bearing; 3037-Slide rail; 40-Rewinding assembly; 401-Fourth frame; 402-Second guide roller; 403-Second unwinding shaft; 404-First support roller; 405-Second support roller; 406-Second drive mechanism; 407-Copy paper roll; 408-Rewinding station slot; 409-Limiting plate; 4091-Limiting surface; 410-Upright pole; 411-Adjusting rod; 412-Locking screw; 50 - Second frame; 60 - Belt transition device; 61 - First idler; 62 - Second idler; 63 - Transition belt; 70 - First guide roller; 80-Second air outlet duct; 801-Second air outlet; 802-Blower branch duct; 90 - Third air outlet duct; 901 - Third air outlet; 100 - Second blower; 110 - PVC roll material; 120 - Transmission mechanism; 1201 - Driving pulley; 1202 - Driven pulley; 1203 - First transmission belt; 1204 - First transmission pulley; 1205 - Second transmission pulley; 1206 - Second transmission belt; 130 - Support cylinder. Detailed Implementation

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0034] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0035] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Please see Figures 1 to 12 This invention provides a PVC roll shaping device, which can be used to further shape the produced PVC film and other PVC rolls 110 to meet the specific customer's high requirements for roll size. Specifically, the PVC roll shaping device includes an unwinding assembly 10, a winding assembly 40, a hot water tank 20a, a cold water tank 20b, and a drying assembly 30.

[0037] The unwinding assembly 10, hot water tank 20a, cold water tank 20b, and winding assembly 40 are arranged sequentially along the conveying direction of the PVC roll 110.

[0038] Specifically, the unwinding assembly 10 is used to release the PVC roll 110, which has been wound up during production, into the hot water tank 20a for immersion. The heat energy of the hot water in the tank 20a breaks the frozen state of the molecular chains of the PVC roll 110, allowing the internal stress locked by melt orientation, rapid cooling and shaping, and winding tension during the production process to be fully released, laying the foundation for the subsequent dimensional stability of the PVC roll 110. After the PVC roll 110 is immersed in the hot water tank 20a, it is drawn into the cold water tank 20b. The cooling water in the cold water tank 20b quickly cools and shapes the stress-released PVC roll 110, thereby stabilizing its dimensions. This solves the problem that traditional shaping devices, which only use cooling water to shape the PVC roll 110, cannot significantly eliminate the internal stress of the PVC roll 110. The drying assembly 30 is installed above the cold water tank 20b. After the PVC roll 110 is soaked in the cold water tank 20b, it is pulled upwards to the drying assembly 30. The drying assembly 30 removes the moisture adhering to the surface of the shaped PVC roll 110, preventing residual moisture from affecting the subsequent winding quality of the PVC roll 110. Finally, the winding assembly 40 is used to rewind the shaped and dried PVC roll 110 into a regular roll, and the winding assembly 40 provides the traction power for the PVC roll 110.

[0039] For example, the hot water in hot water tank 20a can be supplied by an electric hot water boiler. The cooling water in cold water tank 20b can be supplied by a cooling tower.

[0040] like Figure 2 , Figure 4 as well as Figure 5 As shown, in an optional embodiment, both the hot water tank 20a and the cold water tank 20b include a tank body 201, a first tensioning roller 202 rotatably disposed within the tank body 201, and a second tensioning roller 203 mounted above the tank body 201. The first tensioning roller 202 is positioned side-by-side within the tank body 201, ensuring that the PVC roll 110 remains stably and fully immersed in both the hot water tank 20a and the cold water tank 20b. This ensures that the hot water in the hot water tank 20a is evenly applied to the PVC roll 110, and also ensures that the cold water tank 20a is sufficiently immersed. The cooling water in tank 20b can fully contact the PVC roll 110 to achieve efficient cooling and shaping, avoiding uneven stress release or poor shaping effect due to insufficient local soaking of the PVC roll 110; the second tensioning roller 203 is located between the two tanks 201, and can tension the PVC roll 110 to a certain extent during the transition stage from hot water tank 20a to cold water tank 20b, preventing the PVC roll 110 from loosening, wrinkling or shifting during the conveying process, and ensuring the continuity and stability of the PVC roll 110 conveying.

[0041] Specifically, each of the tanks 201 is connected to a drain pipe 206, which can be connected to a bypass integrated water processor. Thus, when the sizing device is not needed, the water in the tank 201 can be pumped to the bypass integrated water processor for purification. When the purified water is recycled, it will not cause blockage or serious corrosion to the water supply pipeline.

[0042] Specifically, a partition 204 is provided above the inner bottom of the tank 201. A filter screen 205 with perforations is provided on the partition 204, and the partition 204 and the filter screen 205 cooperate to form an independent space between the partition 204 and the inner bottom of the tank 201. When hot water or cooling water is added to the tank 201, the water can first be transported to the aforementioned independent space through pipelines, and then enter the tank 201 above the filter screen 205 and the partition 204 through the perforations of the filter screen 205. Therefore, the water added to the tank 201 can be filtered, ensuring that the hot water used for stress release in the tank 201 and the cooling water used for shaping in the cold water tank 20b remain relatively clean. This reduces the interference of impurities on the PVC roll 110 and the water-heat exchange efficiency, thereby ensuring sufficient stress release and effective cooling and shaping.

[0043] like Figures 1 to 3 as well as Figures 6 to 9 As shown, in an optional embodiment, the drying assembly 30 includes a first frame 301 and a drying pipe assembly 302 disposed on the first frame 301. Multiple drying pipe assemblies 302 can be installed from bottom to top to ensure the drying effect of the PVC roll 110. Specifically, the drying pipe assembly 302 includes two first air outlet pipes 3021 mounted on the first frame 301; the two first air outlet pipes 3021 are located on both sides of the upwardly conveyed PVC roll 110, and the first air outlet pipes 3021 are connected to a first blower 3022; the air outlet end of the first blower 3022 is connected to the first air outlet pipe 3021 for blowing air into the first air outlet pipe 3021.

[0044] The length direction of the first air outlet duct 3021 is parallel to the width direction of the PVC roll 110, and a first air outlet 3021a is formed on the first air outlet duct 3021 along its length direction. The first air outlet 3021a faces the surface of the PVC roll 110 and is elongated, so that when the air delivered to the first air outlet duct 3021 by the first blower 3022 is discharged from the first air outlet 3021a, it can form an airflow that is evenly distributed along the width direction of the PVC roll 110. The airflow ensures that it fully covers the entire width of the PVC roll 110, preventing incomplete drying in certain areas. Simultaneously, the airflow directly acts on the surface of the PVC roll 110, more efficiently removing moisture and improving drying efficiency and effectiveness. This ensures the PVC roll 110 is dry and free of residual moisture during subsequent winding, preventing moisture residue from affecting the winding quality and subsequent use of the PVC roll 110.

[0045] like Figures 1 to 3 as well as Figure 6 As shown, in an optional embodiment, the air-drying assembly 30 further includes a first dewatering mechanism 303a and a second dewatering mechanism 303b. The first dewatering mechanism 303a is mounted below the air-drying pipe assembly 302 and can first dewater the cooled and shaped PVC roll to remove most of the free water on the surface of the PVC roll 110, thereby reducing the amount of water that the air-drying pipe assembly 302 needs to handle, greatly improving the drying efficiency, and avoiding incomplete drying due to excessive moisture on the surface of the PVC roll 110. After the air-drying pipe assembly 302 blows the air, a small amount of moisture may still remain on the surface of the PVC roll 110. At this time, the second dewatering mechanism 303b located above the air-drying pipe assembly 302 can dewater the PVC roll 110 a second time to further remove the residual moisture on the surface of the PVC roll 110.

[0046] The present invention, through the coordinated action of the first dewatering mechanism 303a, the second dewatering mechanism 303b and the air drying tube assembly 302, can reduce the energy consumption of the air drying assembly 30 and improve the overall drying effect of the PVC roll 110. Moreover, the arrangement of the first dewatering mechanism 303a and the second dewatering mechanism 303b does not interfere with the normal blowing operation of the air drying tube assembly 302, nor does it affect the stable conveying of the PVC roll 110.

[0047] Understandably, the water squeezed out by the first water-squeezing mechanism 303a and the second water-squeezing mechanism 303b will drip downwards into the cold water tank 20b.

[0048] Specifically, both the first squeezing mechanism 303a and the second squeezing mechanism 303b include a pressure roller 3031, a bearing roller 3032 arranged side by side with the pressure roller 3031, a frame 3033 located at both ends of the pressure roller 3031 and fixed on the first frame 301, and a horizontal drive mechanism 3034 connected to the frame 3033; the upper inner wall and the lower inner wall of the frame 3033 are provided with slide rails 3037, and a first bearing 3035 is slidably mounted on the slide rails 3037; both ends of the pressure roller 3031 are rotatably connected to the first bearing 3035, and the axial direction of the pressure roller 3031 is parallel to the width direction of the PVC roll 110; the horizontal drive mechanism 3034 can be a cylinder, and the telescopic rod of the cylinder is connected to the first bearing 3035.

[0049] The pressure roller 3031 and the bearing roller 3032 are arranged side by side to form a clamping and extrusion structure for the PVC roll 110. When the PVC roll 110 passes between the pressure roller 3031 and the bearing roller 3032, the moisture adhering to the surface of the PVC roll 110 can be efficiently removed by the extrusion of the rollers. By using a cylinder as a horizontal drive mechanism 3034, and the telescopic rod of the cylinder is connected to the first bearing 3035, the first bearing 3035 can be slid along the slide rail 3037 by the extension and retraction of the cylinder, thereby driving the pressure roller 3031 to move closer to or away from the bearing roller 3032. This allows for flexible adjustment of the distance between the pressure roller 3031 and the bearing roller 3032, thus adapting to PVC rolls 110 of different thicknesses and ensuring that appropriate extrusion pressure can be formed for various types of rolls. At the same time, it is convenient for operators to guide the PVC roll 110 upwards before the shaping device is turned on.

[0050] like Figure 2 and Figure 3 As shown, further, a second bearing 3036 is fixed to the outer side of the frame 3033; both ends of the pressure roller 3032 are rotatably connected to the second bearing 3036. In this embodiment, the frame 3033 provides a reliable mounting carrier for the second bearing 3036, and the structure of the second bearing 3036 being fixed to the outer side of the frame 3033 makes the mounting position of the pressure roller 3032 relatively fixed. The pressure roller 3032 always maintains the same height as the pressure roller 3031. When the pressure roller 3031 moves toward the pressure roller 3032 and squeezes the PVC roll 110, the PVC roll 110 can be subjected to uniform extrusion pressure, which can avoid local moisture residue in the PVC roll 110 due to uneven extrusion pressure. At the same time, it can also prevent the PVC roll 110 from being damaged by excessive local extrusion pressure or the water from being incompletely squeezed out due to insufficient local extrusion pressure.

[0051] like Figure 1 and Figure 2As shown, in an optional embodiment, the PVC roll forming device further includes a second frame 50 and a belt transition device 60; the belt transition device 60 is disposed on the second frame 50 and is located between the air drying assembly 30 and the winding assembly 40; the belt transition device 60 includes a first idler roller 61 and a second idler roller 62 mounted on the second frame 50, and a transition belt 63 wound around the first idler roller 61 and the second idler roller 62; the axial direction of the first idler roller 61 and the axial direction of the second idler roller 62 are both parallel to the width direction of the PVC roll 110. The transition belt 63 provides a stable support surface for the PVC roll 110 conveyed from the drying assembly 30 to the winding assembly 40, preventing the PVC roll 110 from sagging, wrinkling, or shifting during the conveying process due to its own weight or uneven conveying tension. Moreover, the transition belt 63 does not require motor drive, eliminating the problem of asynchronous conveying and winding speeds that may be caused by motor drive, and preventing the PVC roll 110 from being stretched or squeezed due to speed difference. This ensures that the PVC roll 110 will not generate internal stress again in the subsequent conveying process after the initial stress release and shaping are completed, thereby ensuring the dimensional stability and shaping effect of the PVC roll 110.

[0052] like Figure 2 As shown, in an optional embodiment, the first frame 301 is rotatably equipped with multiple first guide rollers 70 on the side facing the winding assembly 40. Utilizing the guiding action of the first guide rollers 70, the PVC roll 110, after being squeezed by the second dewatering mechanism 303b, can be pulled downwards onto the transition belt 63. Furthermore, a second air outlet 80 is fixedly provided on the first frame 301; the length direction of the second air outlet 80 and the axial direction of the first guide rollers 70 are both parallel to the width direction of the PVC roll 110, and a second air outlet 801 is opened along the length direction of the second air outlet 80. The second air outlet 801 faces the back side of the downwardly conveying PVC roll 110, allowing the back side of the PVC roll 110 to be further dried before being pulled onto the transition belt 63, thereby ensuring the dryness and dimensional stability of the PVC roll 110.

[0053] like Figure 6 As shown, the second air outlet duct 80 is further connected to a blower branch duct 802; the air outlet end of the first blower 3022 is connected to a blower main duct 3023, which is connected to the first air outlet duct 3021; ​​the blower branch duct 802 is connected to the blower main duct 3023. Therefore, it is not necessary to equip the second air outlet duct 80 with a separate blower, but the power source of the first blower 3022 can be used to provide the airflow required for drying the PVC roll 110 to the second air outlet duct 80, thereby reducing the procurement and installation costs of the equipment.

[0054] like Figure 10 As shown, in an optional embodiment, the unwinding assembly 10 includes a third frame 101, a first unwinding shaft 102 rotatably mounted on the third frame 101, a traction roller 103 rotatably mounted on the third frame 101, and a first drive mechanism 104 for driving the traction roller 103 to rotate. The first unwinding shaft 102 may be an air shaft, and its axial direction and the axial direction of the traction roller 103 are both parallel to the width direction of the PVC roll 110. The first drive mechanism 104 may be a drive motor, and its output shaft may be driven to the traction roller 103 via a belt drive mechanism, thereby driving the traction roller 103 to rotate, so that the PVC roll 110 on the first unwinding shaft 102 can be unwound and pulled into the hot water tank 20a.

[0055] like Figure 1 , Figure 2 as well as Figure 12 As shown, in an optional embodiment, the winding assembly 40 includes a fourth frame 401, a second guide roller 402 rotatably mounted on the fourth frame 401, a second unwinding shaft 403 rotatably mounted on the fourth frame 401, a first support roller 404 rotatably mounted on the fourth frame 401, a second support roller 405 rotatably mounted on the fourth frame 401, and a second drive mechanism 406 for driving the first support roller 404 and the second support roller 405 to rotate; the second guide roller 402, the second unwinding shaft 403, the first support roller 404, and the second support roller 405 are arranged sequentially along the conveying direction of the PVC roll 110, wherein multiple second guide rollers 402 can be provided so that the shaped PVC roll 110 can be pulled and conveyed to the winding assembly 40 by the transition belt 63; a winding station groove 408 is formed between the first support roller 404 and the second support roller 405; the second unwinding shaft 403 can be an air shaft, on which a copy paper roll 407 is loaded. When the second unwinding shaft 403 rotates to perform the unwinding operation, the copy paper roll 407 is released and wound up together with the shaped PVC roll 110, so that a layer of copy paper can be sandwiched between the PVC rolls 110, thereby preventing the PVC rolls 110 from sticking together, protecting the smoothness of the PVC roll surface and preventing the PVC roll 110 from being scratched.

[0056] Specifically, when the winding assembly 40 winds up the shaped PVC roll 110, a support cylinder 130 for supporting the roll is placed on the winding station slot 408. The support cylinder 130 can be a paper tube. During winding, the first end of the PVC roll 110 is attached to the support cylinder 130 with adhesive tape. The support cylinder 130 is located in the winding station slot 408 and is supported by the first support roller 404 and the second support roller 405. Therefore, when the drive mechanism drives the first support roller 404 and the second support roller 405 to rotate in the same direction, it can drive the support cylinder 130 to rotate to achieve the winding operation.

[0057] like Figure 12 As shown, specifically, in order to drive the first support roller 404 and the second support roller 405 to rotate using the second drive mechanism 406, the second drive mechanism 406 can be a drive motor, and the output shaft of the second drive mechanism 406 is connected to the transmission mechanism 120. The transmission mechanism 120 includes a drive wheel 1201 coaxially arranged with the output shaft of the second drive mechanism 406, a driven wheel 1202 coaxially arranged with the first support roller 404, a first transmission belt 1203 simultaneously wound on the drive wheel 1201 and the driven wheel 1202, a first transmission wheel 1204 coaxially arranged with the first support roller 404, a second transmission wheel 1205 coaxially arranged with the second support roller 405, and a second transmission belt 1206 simultaneously wound on the first transmission wheel 1204 and the second transmission wheel 1205. The transmission mechanism 120 drives the first support roller 404 to rotate through the driving wheel 1201, the driven wheel 1202, and the first transmission belt 1203. Then, the first transmission wheel 1204, the second transmission wheel 1205, and the second transmission belt 1206 are used to realize the synchronous transmission of the first support roller 404 and the second support roller 405, thereby ensuring that the two support rollers rotate in the same direction and match their speeds, so as to stabilize the winding action in the winding station slot 408.

[0058] like Figure 12 As shown, in an optional embodiment, two parallel limiting plates 409 are vertically mounted above the winding station slot 408; the limiting plates 409 have limiting surfaces 4091 perpendicular to the axial direction of the first support roller 404. The limiting plates 409 can provide precise lateral limiting for the PVC roll 110 and the copy paper during the winding process. When the PVC roll 110 and the copy paper are wound interlayer in the winding station slot 408, the limiting surfaces 4091 of the two limiting plates 409 can constrain the edges of the roll from both sides, effectively preventing the roll from shifting laterally due to tension changes, equipment vibration, and other factors during the winding process, ensuring that the edges of the wound roll are neatly aligned, and further improving the winding quality.

[0059] Furthermore, the fourth frame 401 is vertically provided with uprights 410 on both sides of the first support roller 404, and an adjusting rod 411 is horizontally inserted through the uprights 410; the adjusting rod 411 is connected to the limiting plate 409, and the length direction of the adjusting rod 411 is parallel to the first support roller 404; a locking screw 412 is also inserted into the upright 410 to abut against the surface of the adjusting rod 411. The operator can move the limiting plate 409 to a suitable position along the length direction of the adjusting rod 411 according to the width of the PVC roll 110 and the copy paper, so that the limiting surface 4091 of the limiting plate 409 fits against the edge of the roll, thereby adapting to the winding requirements of rolls of different specifications. The locking screw 412 can fix the adjusting rod 411, ensuring the stability of the position of the limiting plate 409 during the winding process, avoiding the PVC roll 110 from shifting during winding, and thus ensuring the winding regularity of the roll.

[0060] like Figure 2 and Figure 11 As shown, in an optional embodiment, a third air outlet 90 is fixed on the side of the fourth frame 401 facing the drying assembly 30. A second blower 100 is provided at one end of the third air outlet 90, and the air outlet end of the second blower 100 is connected to the third air outlet 90. A third air outlet 901 is provided on the third air outlet 90 along its length direction. The third air outlet 901 faces the PVC roll 110, which can perform a final supplementary air drying and cleaning of the PVC roll 110, further ensuring that the surface of the PVC roll 110 is dry and clean, and avoiding residual moisture or impurities on the surface of the PVC roll 110 from affecting the winding quality of the PVC roll 110.

[0061] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A shaping device for PVC rolls, comprising an unwinding assembly (10) and a winding assembly (40); characterized in that, It also includes a hot water tank (20a) and a cold water tank (20b) arranged sequentially along the PVC roll conveying direction, and a drying assembly (30) located above the cold water tank (20b). The air-drying assembly (30) includes a first frame (301) and an air-drying pipe assembly (302) disposed on the first frame (301). The air drying duct assembly (302) includes two first air outlet ducts (3021) mounted on the first frame (301); the two first air outlet ducts (3021) are located on both sides of the PVC roll material, and the first air outlet ducts (3021) are connected to a first blower (3022); the air outlet end of the first blower (3022) is connected to the first air outlet duct (3021); The length direction of the first air outlet pipe (3021) is parallel to the width direction of the PVC roll, and a first air outlet (3021a) is provided on the first air outlet pipe (3021) along the length direction of the first air outlet pipe (3021); the first air outlet (3021a) faces the surface of the PVC roll.

2. The PVC roll forming device according to claim 1, characterized in that, Both the hot water tank (20a) and the cold water tank (20b) include a tank body (201), a first tensioning roller (202) rotatably disposed within the tank body (201), and a second tensioning roller (203) mounted above the tank body (201); the first tensioning roller (202) is located side by side within the tank body (201); the second tensioning roller (203) is located between the two tank bodies (201).

3. The PVC roll forming device according to claim 1, characterized in that, The air-drying assembly (30) further includes a first dewatering mechanism (303a) and a second dewatering mechanism (303b); the first dewatering mechanism (303a) and the second dewatering mechanism (303b) are respectively mounted below and above the air-drying tube assembly (302), and both the first dewatering mechanism (303a) and the second dewatering mechanism (303b) include a pressure roller (3031), a pressure bearing roller (3032) arranged side by side with the pressure roller (3031), a frame frame (3033) located at both ends of the pressure roller (3031) and fixed on the first frame (301), and a horizontal drive mechanism (3034) connected to the frame frame (3033); The frame (3033) is slidably provided with a first bearing (3035); the two ends of the pressure roller (3031) are rotatably connected to the first bearing (3035), and the axial direction of the pressure roller (3031) is parallel to the width direction of the PVC roll; the horizontal drive mechanism (3034) is connected to the first bearing (3035) in a transmission connection. The outer side of the frame (3033) is fixed with a second bearing (3036); the two ends of the pressure roller (3032) are rotatably connected to the second bearing (3036).

4. The PVC roll forming device according to claim 1, characterized in that, It also includes a second frame (50) and a belt transition device (60); the belt transition device (60) is disposed on the second frame (50) and is located between the air drying assembly (30) and the winding assembly (40); the belt transition device (60) includes a first idler (61) and a second idler (62) mounted on the second frame (50), and a transition belt (63) wound around the first idler (61) and the second idler (62); the axial direction of the first idler (61) and the axial direction of the second idler (62) are both parallel to the width direction of the PVC roll.

5. The PVC roll forming device according to claim 1, characterized in that, The first frame (301) has a first guide roller (70) on the side facing the winding assembly (40); and a second air outlet pipe (80) is fixed on the first frame (301); the length direction of the second air outlet pipe (80) and the axial direction of the first guide roller (70) are both parallel to the width direction of the PVC roll, and a second air outlet (801) is provided on the second air outlet pipe (80), which faces the back of the downward conveying PVC roll; The second air outlet pipe (80) is connected to a blower branch pipe (802); the air outlet end of the first blower (3022) is connected to a blower main pipe (3023), the blower main pipe (3023) is connected to the first air outlet pipe (3021); the blower branch pipe (802) is connected to the blower main pipe (3023).

6. The PVC roll forming device according to claim 1, characterized in that, The unwinding assembly (10) includes a third frame (101), a first unwinding shaft (102) rotatably mounted on the third frame (101), a traction roller (103) rotatably mounted on the third frame (101), and a first drive mechanism (104) for driving the traction roller (103) to rotate; the axial direction of the first unwinding shaft (102) and the axial direction of the traction roller (103) are both parallel to the width direction of the PVC roll.

7. The PVC roll forming device according to claim 1, characterized in that, The winding assembly (40) includes a fourth frame (401), a second guide roller (402) rotatably mounted on the fourth frame (401), a second unwinding shaft (403) rotatably mounted on the fourth frame (401), a first support roller (404) rotatably mounted on the fourth frame (401), a second support roller (405) rotatably mounted on the fourth frame (401), and a second drive mechanism (406) for driving the first support roller (404) and the second support roller (405) to rotate; the second guide roller (402), the second unwinding shaft (403), the first support roller (404) and the second support roller (405) are arranged sequentially along the conveying direction of the PVC roll; a winding station groove (408) is formed between the first support roller (404) and the second support roller (405); a copy paper roll (407) is loaded on the second unwinding shaft (403).

8. The PVC roll forming device according to claim 7, characterized in that, Two parallel limiting plates (409) are vertically mounted above the winding station slot (408); the limiting plates (409) have a limiting surface (4091) perpendicular to the axial direction of the first support roller (404). The fourth frame (401) has vertical poles (410) on both sides of the first support roller (404), and an adjusting rod (411) is horizontally inserted on the poles (410); the adjusting rod (411) is connected to the limiting plate (409), and the length direction of the adjusting rod (411) is parallel to the first support roller (404); a locking screw (412) that abuts against the surface of the adjusting rod (411) is also inserted on the poles (410).

9. The PVC roll forming device according to claim 7, characterized in that, The fourth frame (401) has a third air outlet pipe (90) fixed on the side facing the air drying assembly (30). One end of the third air outlet pipe (90) is provided with a second blower (100), and the air outlet end of the second blower (100) is connected to the third air outlet pipe (90). The third air outlet pipe (90) is provided with a third air outlet (901), and the third air outlet (901) faces the PVC roll material.

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