A PVC film calender

Abstract

The present invention belongs to the field of calendering technology, and specifically is a PVC film calendering machine, comprising a support frame, one end of the support frame is rotatably provided with two calendering rollers, the middle part of the support frame is driven by a conveyor belt, the end of the support frame away from the calendering roller is rotatably provided with a winding roller, auxiliary winding components are arranged on both sides of the support frame, and the auxiliary winding components include a second motor fixedly arranged on one end of the support frame close to the winding roller; a first screw rod fixedly connected to the output end of the second motor, and the end of the first screw rod close to the calendering roller is threadedly connected with a sliding block; a fixed plate hinged on a side of the sliding block close to the support frame, two pneumatic clamping plates are slidably arranged in the fixed plate, an air pump is arranged on the sliding block, and the air pump is connected to the fixed plate; and two limit plates are arranged in the winding roller, and the problems of complicated winding process and low working efficiency in the existing process are solved by arranging the pneumatic clamping plates to cooperate with the limit plates in the winding roller.

Description

Technical Field

[0001] The invention belongs to the technical field of calendering, in particular to a PVC film calendering machine. Background Art

[0002] The calender is mainly used in the production of various types of plastic films and PVC calendered artificial leather products. It usually has two main rollers or more main rollers to press the plastic evenly.

[0003] A patent with publication number CN110815687B discloses a PVC sheet calender, including an interlaced transmission mechanism. The interlaced transmission mechanism can curve the material during a long preheating process, and transmit the material along the curve to increase the transmission contact area, and tightly compress the material transmission with the help of negative pressure wind adsorption. The two work together to ensure that the material always keeps multiple bending parts restrained from each other during the transmission process, making it difficult for large dislocations to occur during the transmission process, thereby avoiding the situation where the material is not in the right position during the calendering process, resulting in damage and waste of the calendered material.

[0004] The above scheme still has some problems in practical application. During use, the above PVC sheet calender feeds the softened PVC material into the calendering roller, and then extrude it through two main calendering rollers to produce a strip of PVC material, which can then be cut to produce PVC sheets of corresponding sizes. However, when the strip of PVC material is produced and rolled up, the prior art is to have the staff adhere the front end of the strip of PVC material to the tape, and then adhere the other end of the tape to the winding roller, and then start the winding roller to complete the winding work. If the adhesion is not firm during this process, the adhesion will be separated again, and the staff needs to perform adhesion again. The process is cumbersome and the work efficiency is low.

[0005] To this end, the present invention provides a PVC film calender. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a PVC film calendering machine described in the present invention comprises a support frame, one end of the support frame is rotatably provided with two calendering rollers, the middle part of the support frame is provided with a conveyor belt, the end of the support frame away from the calendering roller is rotatably provided with a winding roller, both sides of the support frame are provided with auxiliary winding components, the auxiliary winding components include sliding blocks symmetrically slidably provided on both sides of the support frame, each of the sliding blocks is hinged with a fixed plate, two pneumatic clamping plates are slidably provided in the fixed plate, an air pump is provided on the sliding block, and the air pump is connected to the fixed plate;

[0008] And two limit plates are arranged in the winding roller, and second grooves are opened at both ends of the winding roller, and the cross-section of the second grooves is the same as that of the fixed plate. Two first cavities are opened in the middle of the winding roller, and the top wall of each of the first cavities is fixed with a plurality of first compression springs, and one end of each of the first compression springs away from the top wall of the first cavity is fixed with the limit plate, and the top wall of the first cavity is fixed with two electrophoresis magnetic plates.

[0009] Preferably, a second motor is fixedly arranged on one end of the support frame close to the winding roller;

[0010] A first screw rod is fixedly connected to the output end of the second motor, and one end of the first screw rod close to the calendering roller is threadedly connected to the sliding block.

[0011] Preferably, one end of the sliding block close to the fixed plate is fixedly connected to a fixed tube, and two ends of the fixed tube are rotatably connected to two connecting rods, and one end of the two connecting rods away from the fixed tube is fixedly connected to the fixed plate, and a positioning seat is provided on the side of the support frame close to the winding roller, and a first motor is provided on the top of the positioning seat, and the output end of the first motor is fixedly connected to the winding roller.

[0012] Preferably, a rubber pad is fixedly connected to one side of the two pneumatic clamping plates close to each other, and the rubber pad is used to protect the clamping of the strip PVC material.

[0013] Preferably, a first sliding block is fixedly connected to a side of the sliding block close to the support frame, and a first sliding groove is provided on the support frame at a position corresponding to the first sliding block, and the first sliding block can slide along the first sliding groove.

[0014] Preferably, a guide inclined plate is fixedly connected to one end of the support frame close to the calendering roller, and the bottom end of the guide inclined plate abuts against the pneumatic clamping plate at the lower inner side of the fixed plate.

[0015] Preferably, the support frame is provided with a first groove body at both ends corresponding to the lower calendering roller, a first hydraulic cylinder is fixedly connected in the first groove body, a fixing ring is fixedly connected to the output end of the first hydraulic cylinder, and the fixing ring is sleeved on the output end of the third motor near the lower calendering roller.

[0016] Preferably, a fixed seat is provided on the side of the support frame close to the calendering roller, and two third motors are provided on the top of the fixed seat, wherein the output end of one of the third motors is fixedly connected to the lower calendering roller, and a second slide groove is provided on the fixed seat corresponding to the position of the third motor, and a second slider is fixedly connected to the bottom end of the third motor, and the second slider can slide in the second slide groove.

[0017] Preferably, the support frame is fixedly connected to two positioning tubes below the lower calendering roller, a rotating shaft is rotatably arranged between the two positioning tubes, both ends of the rotating shaft are sleeved with torsion springs, and a cleaning plate is fixedly connected to the circumferential surface of the rotating shaft.

[0018] Preferably, a collecting frame is provided at a position of the cleaning plate on the bottom wall of the support frame, a guide block is fixedly connected to the bottom end of the collecting frame, a guide groove is provided at a position of the guide block on the bottom wall of the support frame, and the collecting frame can slide along the guide groove.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The PVC film calender described in the present invention drives the sliding block to slide toward the winding roller after the first screw rotates, and then the first screw drives the sliding block to slide to the corresponding position of the winding roller, and then the two limit plates in the winding roller are released, and the two limit plates clamp the middle part of the strip PVC material, and then the pneumatic clamp on the fixed plate is released, and the first screw reverses to drive the sliding block to slide to the middle part of the conveyor belt, which controls the tension on both sides of the strip PVC material, and can also guide and limit the strip PVC material to achieve better winding work.

[0021] 2. The PVC film calendering machine described in the present invention has a cleaning plate arranged below the lower calendering roller. Since the softened PVC material has a certain viscosity, it may adhere to the lower calendering roller. Because the cleaning plate rotatably arranged in two fixed tubes below the lower calendering roller abuts against the lower calendering roller, and because torsion springs are arranged at both ends of the rotating shaft of the cleaning plate, the torsion force of the torsion spring enables the cleaning plate to always abut against the lower calendering plate to clean the circumferential surface of the lower calendering roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the spacing adjustment component of the present invention;

[0025] Figure 3 is a schematic structural diagram of a third motor of the present invention;

[0026] Figure 4 It is a partial structural schematic diagram of the overall structure of the present invention;

[0027] Figure 5 is a schematic structural diagram of a first screw rod of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the fixing plate of the present invention;

[0029] Figure 7 is a cross-sectional view of the winding roller of the present invention;

[0030] In the figure: 1, support frame; 11, first tank body; 12, first hydraulic cylinder; 13, fixed ring; 14, calender roller; 15, guide inclined plate; 16, conveyor belt; 17, positioning seat; 18, first motor; 19, second motor; 110, first screw rod; 111, winding roller; 112, sliding block; 113, fixed plate; 114, fixed pipe; 115, connecting rod; 116, pneumatic clamping plate; 117, rubber pad; 118, first slider; 119, first slide trough; 120, second tank body; 121, first cavity; 122, electrophoresis magnetic plate; 123, first compression spring; 124, limit plate;

[0031] 2. Fixed seat; 21. Third motor; 22. Second slide slot; 23. Second slide block;

[0032] 3. Collecting frame; 31. Guide groove; 32. Guide block; 33. Positioning tube; 34. Torsion spring; 35. Rotating shaft; 36. Cleaning plate. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0034] like Figures 1 to 7 As shown, a PVC film calendering machine according to an embodiment of the present invention comprises a support frame 1, one end of the support frame 1 is rotatably provided with two calendering rollers 14, a conveyor belt 16 is provided in the middle of the support frame 1, and a winding roller 111 is rotatably provided at one end of the support frame 1 away from the calendering roller 14, and auxiliary winding components are provided on both sides of the support frame 1, and the auxiliary winding components include sliding blocks 112 symmetrically slidably arranged on both sides of the support frame 1, each sliding block 112 is hinged with a fixed plate 113, and two pneumatic clamping plates 116 are slidably arranged in the fixed plate 113, and the sliding blocks 112 are provided with a pneumatic clamping plate 116 on the sliding blocks 112. An air pump is provided, which is connected to the fixed plate 113; and two limit plates 124 are arranged in the winding roller 111. Second grooves 120 are provided at both ends of the winding roller 111. The second grooves 120 have the same cross-section as the fixed plate 113. Two first cavities 121 are provided in the middle of the winding roller 111. The top wall of each first cavity 121 is fixedly connected to a plurality of first compression springs 123. The end of each first compression spring 123 away from the top wall of the first cavity 121 is fixedly connected to the limit plate 124. The top wall of the first cavity 121 is fixedly connected to two electrophoretic magnetic plates 122.

[0035] Specifically, the existing PVC sheet calendering machine feeds the softened PVC material into the calendering roller 14 during use, and then produces a strip of PVC material through extrusion by two main calendering rollers 14, and then produces PVC sheets of corresponding sizes through slitting. However, when the produced strip of PVC material is rolled up, the staff adheres the front end of the strip of PVC material to the tape, and then adheres the other end of the tape to the winding roller 111, and then starts the winding roller 111 to complete the winding work. If the adhesion is not firm during this process, the adhesion will be separated again, and the staff needs to adhere again, which is cumbersome and inefficient.

[0036] Therefore, the structure provided in the present invention can automatically fix the produced strip-shaped PVC material to the winding roller 111, so that the winding roller 111 can quickly perform the winding work. First, when the heated and softened PVC material is transmitted between the two calendering rollers 14, it is squeezed by the two calendering rollers 14 to extrude the strip-shaped PVC material. After being extruded, the strip-shaped PVC material will pass between the fixed plates 113 arranged on both sides of the support frame 1. Infrared sensors are arranged on the sides of the fixed plates 113. After detecting that the strip-shaped PVC material has passed through, the air pump on the sliding block 112 will be started. After starting the air pump, the air pump will drive the two pneumatic clamping plates 116 in the fixed plate 113 to clamp the front end of the strip-shaped PVC material, and then the first screw rod 110 will rotate. After the first screw rod 110 rotates, it will drive the sliding block 112 to slide toward the winding roller 111 After the sliding block 112 drives the fixed plate 113 and the pneumatic clamping plate 116 to move to the second slot 120 opened by the winding roller 111, the pressure sensor on the wall of the second slot 120 senses the squeezing of the fixed plate 113, and then the electrophoretic magnetic plate 122 in the first cavity 121 of the winding roller 111 is powered off to make it lose its magnetism, thereby releasing the limit plate 124 magnetically attracted by the electrophoretic magnetic plate 122, and the limit plate 124 and the first compression spring 123 of the bottom wall of the first cavity 121 release the elastic force, so that the two limit plates 124 squeeze the strip of PVC material, and then the pneumatic clamping plate 116 on the fixed plate 113 is released, and the first screw rod 110 reverses to drive the sliding block 112 to slide to the middle of the conveyor belt 16, so as to control the tension on both sides of the strip of PVC material, and also guide and limit the strip of PVC material;

[0037] At the same time, the problem of complicated rolling process and low working efficiency of existing strip PVC materials is solved.

[0038] like Figure 7 As shown, in this embodiment, the second motor 19 is fixedly arranged at one end of the support frame 1 close to the winding roller 111; the first screw rod 110 is fixedly connected to the output end of the second motor 19, and the end of the first screw rod 110 close to the calendering roller 14 is threadedly connected to the sliding block 112.

[0039] Specifically, a fixed plate 113 slidingly arranged on one side of the support frame 1 is hinged with the sliding block 112. After the two pneumatic clamps 116 clamp the strip of PVC material, the first screw rod 110 is driven to rotate by starting the second motor 19. After the first screw rod 110 rotates, it can drive the sliding block 112 to slide along the side wall of the support frame 1, thereby driving the strip of PVC material clamped in the fixed plate 113 to slide.

[0040] like Figure 6 As shown, in this embodiment, one end of the sliding block 112 close to the fixed plate 113 is fixedly connected to a fixed tube 114, and two ends of the fixed tube 114 are rotatably connected to two connecting rods 115, and one end of the two connecting rods 115 away from the fixed tube 114 is fixedly connected to the fixed plate 113, and a positioning seat 17 is provided on the side of the support frame 1 close to the winding roller 111, and a first motor 18 is provided on the top of the positioning seat 17, and the output end of the first motor 18 is fixedly connected to the winding roller 111.

[0041] Specifically, when the calender is not in use, the two connecting rods 115 at one end of the fixed plate 113 close to the sliding block 112 are rotated, and then the connecting rods 115 will rotate around the fixed tube 114, so as to erect the fixed plate 113, thereby achieving the effect of protecting the pneumatic clamping plate 116. In addition, when the winding roller 111 is started, the winding roller 111 is driven to rotate by the first motor 18 on the positioning seat 17.

[0042] like Figure 6 As shown, in this embodiment, the two pneumatic clamping plates 116 are fixedly connected to a rubber pad 117 on one side close to each other, and the rubber pad 117 is used to protect the clamping of the strip PVC material.

[0043] Specifically, in the process of using the pneumatic clamp 116, in order to prevent the clamping force of the pneumatic clamp 116 from being too large, a rubber pad 117 is fixed to the side of each pneumatic clamp 116 that is close to each other, so that the strip of PVC material can be protected when it is clamped, preventing the pneumatic clamp 116 from causing damage to it.

[0044] like Figure 1 and Figure 4 As shown, in this embodiment, a first sliding block 118 is fixedly connected to one side of the sliding block 112 close to the support frame 1 , and a first sliding groove 119 is provided at a position of the support frame 1 corresponding to the first sliding block 118 , and the first sliding block 118 can slide along the first sliding groove 119 .

[0045] Specifically, in the process of the first screw rod 110 driving the sliding block 112 to move in the direction of the winding roller 111, in order to prevent the first screw rod 110 from driving the sliding block 112 to rotate, a first sliding block 118 is fixedly connected to the side of the sliding block 112 close to the support frame 1, and then a first sliding groove 119 is opened at the position of the support frame 1 corresponding to the first sliding block 118, so that after the sliding block 112 is driven by the first screw rod 110, the sliding block 112 can be limited by the first sliding block 118, so that the first sliding block 118 moves along the first sliding groove 119, even if the sliding block 112 can only slide along the first sliding groove 119, thereby achieving the effect of stable sliding of the sliding block 112, making the transportation process of the strip PVC material more stable.

[0046] like Figure 1 As shown, in this embodiment, a guide inclined plate 15 is fixedly connected to one end of the support frame 1 close to the calendering roller 14 , and the bottom end of the guide inclined plate 15 abuts against the pneumatic clamping plate 116 at the bottom of the fixed plate 113 .

[0047] Specifically, after the two calendering rollers 14 extrude the strip-shaped PVC material, in order to enable the strip-shaped PVC material to slide between the two pneumatic clamps 116, a guide inclined plate 15 is provided at the discharge point of the two calendering rollers 14, so that the strip-shaped PVC material can slide along the guide inclined plate 15 after coming out, and the bottom end of the guide inclined plate 15 abuts against the two pneumatic clamps 116, so that the strip-shaped PVC material can slide between the pneumatic clamps 116, which is convenient for the pneumatic clamps 116 to clamp it. Embodiment 2

[0048] like Figures 1 to 7 As shown, compared with Example 1, another embodiment of the present invention is: the support frame 1 is provided with a first groove body 11 at both ends corresponding to the lower calendering roller 14, the first groove body 11 is fixedly connected with a first hydraulic cylinder 12, the output end of the first hydraulic cylinder 12 is fixedly connected with a fixing ring 13, and the fixing ring 13 is sleeved on the output end of the third motor 21 near the lower calendering roller 14.

[0049] Specifically, when the calendering machine is needed to calender PVC films of different thicknesses, firstly, the two first hydraulic cylinders 12 at both ends of the lower calendering roller 14 are started. After the two first hydraulic cylinders 12 are started, they will push the fixed ring 13 at their output ends, thereby driving the fixed ring 13 to move along the first trough body 11, and then the fixed ring 13 drives the lower calendering roller 14 along the first trough body 11 to approach the upper calendering roller 14, thereby reducing the distance between the two calendering rollers 14, so that a thinner strip of PVC material can be calendered.

[0050] like Figure 2 and Figure 3As shown, in this embodiment, a fixed seat 2 is provided on the side of the support frame 1 close to the calendering roller 14, and two third motors 21 are provided on the top of the fixed seat 2, wherein the output end of one of the third motors 21 is fixedly connected to the lower calendering roller 14, and a second slide groove 22 is provided on the fixed seat 2 corresponding to the position of the third motor 21, and a second slider 23 is fixedly connected to the bottom end of the third motor 21, and the second slider 23 can slide in the second slide groove 22.

[0051] Specifically, when the two first hydraulic cylinders 12 drive the lower calendering roller 14 toward the upper calendering roller 14, they can also drive one of the third motors 21, and drive the second slider 23 at the bottom end of the third motor 21 to slide along the second slide groove 22 on the fixed seat 2. The cross-sections of the second slider 23 and the second slide groove 22 are both "T"-shaped, so that the third motor 21 can be fine-tuned to a certain extent along with the lower calendering roller 14, so that the third motor 21 can always maintain a stable drive on the lower calendering roller 14.

[0052] like Figure 4 As shown, in this embodiment, the support frame 1 is fixedly connected to two positioning tubes 33 below the corresponding lower calendering roller 14, a rotating shaft 35 is rotatably arranged between the two positioning tubes 33, both ends of the rotating shaft 35 are sleeved with torsion springs 34, and a cleaning plate 36 is fixedly connected to the circumferential surface of the rotating shaft 35.

[0053] Specifically, in the process of the two calendering rollers 14 squeezing the softened PVC material, the softened PVC material has a certain viscosity and may adhere to the lower calendering roller 14. This is because the cleaning plate 36 rotatably arranged in the two fixed tubes 114 below the lower calendering roller 14 abuts against the lower calendering roller 14. Because torsion springs 34 are arranged at both ends of the rotating shaft 35 of the cleaning plate 36, the torsion force of the torsion spring 34 enables the cleaning plate 36 to always abut against the lower calendering plate, thereby cleaning the circumferential surface of the lower calendering roller 14.

[0054] like Figure 4 As shown, in this embodiment, a collecting frame 3 is provided at a position of the bottom wall of the support frame 1 corresponding to the cleaning plate 36, a guide block 32 is fixedly connected to the bottom end of the collecting frame 3, and a guide groove 31 is opened at a position of the bottom wall of the support frame 1 corresponding to the guide block 32, and the collecting frame 3 can slide along the guide groove 31.

[0055] Specifically, after the lower calendering roller 14 rotates, the cleaning plate 36 can passively clean the material residues attached to the circumferential surface of the lower calendering roller 14, and then the cleaned PVC material residues will fall into the collecting frame 3 under the cleaning plate 36, and then when the collecting frame 3 is collected, the collecting frame 3 is pulled to make the guide block 32 at the bottom slide along the guide groove 31, so as to take out the collecting frame 3, and then the PVC material residues in the collecting frame 3 are subjected to subsequent recycling.

[0056] Working principle: the existing PVC sheet calendering machine feeds the softened PVC material into the calendering roller 14 during use, and then produces a strip of PVC material through extrusion of two main calendering rollers 14, and then produces PVC sheets of corresponding sizes through slitting. However, when the produced strip of PVC material is rolled up, the staff adheres the front end of the strip of PVC material to the tape, and then adheres the other end of the tape to the winding roller 111, and then starts the winding roller 111 to complete the winding work. In this process, if the adhesion is not firm or the winding force of the winding roller 111 is too large, the adhesion will be separated again, and the staff needs to perform adhesion again, which is cumbersome and inefficient.

[0057] Therefore, the structure of the present invention can automatically fix the produced strip PVC material to the winding roller 111, so that the winding roller 111 can quickly perform the winding work. First, after the heated and softened PVC material is transferred to between the two calendering rollers 14, it is squeezed by the two calendering rollers 14 to extrude the strip PVC material. After the two calendering rollers 14 extrude the strip PVC material, in order to make the strip PVC material slide between the two pneumatic clamps 116, a guide inclined plate is provided at the discharge of the two calendering rollers 14. 15, and then after the strip of PVC material comes out, it can slide along the guide inclined plate 15, and the bottom end of the guide inclined plate 15 abuts against the two pneumatic clamping plates 116, so that the strip of PVC material can slide between the pneumatic clamping plates 116. The side of the fixed plate 113 is provided with an infrared sensor. After detecting that the strip of PVC material passes through, the air pump on the sliding block 112 will start. After starting the air pump, the air pump will drive the two pneumatic clamping plates 116 in the fixed plate 113 to clamp the front end of the strip of PVC material, and then the first screw rod 110 rotates After the first screw rod 110 rotates, it will drive the sliding block 112 to slide toward the winding roller 111, and then the first screw rod 110 will drive the sliding block 112 to slide to the corresponding position of the winding roller 111. After the sliding block 112 drives the fixed plate 113 and the pneumatic clamping plate 116 to move to the second groove 120 opened by the winding roller 111, the pressure sensor on the wall of the second groove 120 feels the squeezing of the fixed plate 113, and then the electrophoretic magnetic plate 122 in the first cavity 121 of the winding roller 111 is powered off to make it lose its magnetism, thereby releasing the magnetic attraction of the electrophoretic magnetic plate 122. The limiting plate 124, the limiting plate 124 and the first compression spring 123 of the bottom wall of the first cavity 121 will release the elastic force, so that the two limiting plates 124 squeeze the strip of PVC material, and the two limiting plates 124 clamp the middle of the strip of PVC material, and then the pneumatic clamping plate 116 on the fixed plate 113 will be released, and the first screw rod 110 reverses to drive the sliding block 112 to slide to the middle of the conveyor belt 16, which controls the tension on both sides of the strip of PVC material, and can also guide and limit the strip of PVC material, so as to achieve better winding work;

[0058] When the calendering machine is needed to calender PVC films of different thicknesses, firstly, the two first hydraulic cylinders 12 at both ends of the lower calendering roller 14 are started. After the two first hydraulic cylinders 12 are started, they will push the fixed ring 13 at their output ends, thereby driving the fixed ring 13 to move along the first trough body 11, and then the fixed ring 13 drives the lower calendering roller 14 along the first trough body 11 to approach the upper calendering roller 14, thereby reducing the distance between the two calendering rollers 14, so that a thinner strip of PVC material can be calendered. In addition, when the two first hydraulic cylinders 12 drive the lower calendering roller 14 to approach the upper calendering roller 14, one of the third motors 21 can be driven at the same time, and the second slider 23 at the bottom of the third motor 21 can be driven to slide along the second slide groove 22 on the fixed seat 2. The cross-sections of the second slider 23 and the second slide groove 22 are both "T"-shaped, so that the third motor 21 can be fine-tuned to a certain extent with the lower calendering roller 14, so that the third motor 21 can always maintain a stable drive on the lower calendering roller 14;

[0059] During the process of the two calendering rollers 14 squeezing the softened PVC material, the softened PVC material has a certain viscosity and may adhere to the lower calendering roller 14. This is because the cleaning plate 36 rotatably arranged in the two fixed tubes 114 below the lower calendering roller 14 abuts against the lower calendering roller 14. Because torsion springs 34 are arranged at both ends of the rotating shaft 35 of the cleaning plate 36, the torsion force of the torsion spring 34 enables the cleaning plate 36 to always abut against the lower calendering plate, and clean the circumferential surface of the lower calendering roller 14. Then, the PVC material residues cleaned will fall into the collection frame 3 below the cleaning plate 36. Then, when the collection frame 3 is collected, the collection frame 3 is pulled to make the guide block 32 at the bottom slide along the guide groove 31, so that the collection frame 3 is taken out, and then the PVC material residues in the collection frame 3 are subjected to subsequent recycling.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A PVC film calender, characterized in that: The invention comprises a support frame (1), one end of the support frame (1) is rotatably provided with two calendering rollers (14), the middle part of the support frame (1) is provided with a conveyor belt (16), one end of the support frame (1) away from the calendering rollers (14) is rotatably provided with a winding roller (111), both sides of the support frame (1) are provided with auxiliary winding components, the auxiliary winding components include sliding blocks (112) symmetrically slidably provided on both sides of the support frame (1), each of the sliding blocks (112) is hingedly connected to a fixed plate (113), two pneumatic clamping plates (116) are slidably provided in the fixed plate (113), and an air pump is provided on the sliding block (112), and the air pump is connected to the fixed plate (113); and two limit plates (124) arranged in the winding roller (111); a second groove body (120) is provided at both ends of the winding roller (111); the second groove body (120) has the same cross-section as the fixed plate (113); two first cavities (121) are provided in the middle of the winding roller (111); a plurality of first compression springs (123) are fixedly connected to the top wall of each of the first cavities (121); an end of each of the first compression springs (123) away from the top wall of the first cavity (121) is fixedly connected to the limit plate (124); and two electrophoretic magnetic plates (122) are fixedly connected to the top wall of the first cavity (121).

2. A PVC film calender according to claim 1, characterized in that: A second motor (19) fixedly arranged on one end of the support frame (1) close to the winding roller (111); A first screw rod (110) is fixedly connected to the output end of the second motor (19), wherein one end of the first screw rod (110) close to the calendering roller (14) is threadedly connected to the sliding block (112).

3. A PVC film calender according to claim 1, characterized in that: One end of the sliding block (112) close to the fixed plate (113) is fixedly connected to a fixed tube (114); two ends of the fixed tube (114) are rotatably connected to two connecting rods (115); one end of the two connecting rods (115) away from the fixed tube (114) is fixedly connected to the fixed plate (113); a positioning seat (17) is provided on one side of the support frame (1) close to the winding roller (111); a first motor (18) is provided at the top end of the positioning seat (17); and an output end of the first motor (18) is fixedly connected to the winding roller (111).

4. A PVC film calender according to claim 1, characterized in that: A rubber pad (117) is fixedly connected to one side of the two pneumatic clamping plates (116) that are close to each other. The rubber pad (117) is used to protect the clamping of the strip-shaped PVC material.

5. A PVC film calender according to claim 1, characterized in that: A first sliding block (118) is fixedly connected to one side of the sliding block (112) close to the support frame (1); a first sliding groove (119) is provided on the support frame (1) at a position corresponding to the first sliding groove (118); and the first sliding groove (118) can slide along the first sliding groove (119).

6. A PVC film calender according to claim 1, characterized in that: A guide inclined plate (15) is fixedly connected to one end of the support frame (1) close to the calendering roller (14), and the bottom end of the guide inclined plate (15) abuts against a pneumatic clamping plate (116) at the bottom of the fixed plate (113).

7. A PVC film calender according to claim 1, characterized in that: The support frame (1) is provided with a first groove body (11) at both ends corresponding to the lower calendering roller (14), a first hydraulic cylinder (12) is fixedly connected in the first groove body (11), a fixing ring (13) is fixedly connected to the output end of the first hydraulic cylinder (12), and the fixing ring (13) is sleeved on the output end of the third motor (21) close to the lower calendering roller (14).

8. A PVC film calender according to claim 1, characterized in that: A fixed seat (2) is arranged on one side of the support frame (1) close to the calendering roller (14), and two third motors (21) are arranged on the top of the fixed seat (2), wherein an output end of one of the third motors (21) is fixedly connected to the lower calendering roller (14), and a second slide groove (22) is provided on the fixed seat (2) at a position corresponding to the third motor (21), and a second slider (23) is fixedly connected to the bottom end of the third motor (21), and the second slider (23) can slide in the second slide groove (22).

9. A PVC film calender according to claim 1, characterized in that: Two positioning tubes (33) are fixedly connected to the lower side of the support frame (1) corresponding to the lower calendering roller (14); a rotating shaft (35) is rotatably arranged between the two positioning tubes (33); torsion springs (34) are sleeved on both ends of the rotating shaft (35); and a cleaning plate (36) is fixedly connected to the circumferential surface of the rotating shaft (35).

10. A PVC film calender according to claim 1, characterized in that: A collecting frame (3) is arranged at a position of the bottom wall of the support frame (1) corresponding to the cleaning plate (36); a guide block (32) is fixedly connected to the bottom end of the collecting frame (3); a guide groove (31) is provided at a position of the bottom wall of the support frame (1) corresponding to the guide block (32); and the collecting frame (3) is capable of sliding along the guide groove (31).

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