A calendering equipment for producing PVC film

Abstract

The invention belongs to the field of production calendering equipment, in particular to a production calendering equipment for PVC film. The following scheme is proposed, which comprises two main frames; two auxiliary frames, wherein the auxiliary frames are in sliding contact with the main frames; rollers, wherein the number of the rollers is four; a docking mechanism and a disassembly mechanism, wherein the number of the docking mechanism and the disassembly mechanism is two groups, and the docking mechanism is respectively matched with the disassembly mechanism, the main frame and the auxiliary frame; a positioning mechanism and a control mechanism, wherein the number of the positioning mechanism and the control mechanism is two groups, and the positioning mechanism is respectively matched with the control mechanism and the rotating shaft; and an adjustment mechanism, wherein the number of the adjustment mechanism is two groups. By docking the main frame with the auxiliary frame, the invention can add an additional roller on the main frame to extend the calendering distance of the PVC film, and the spacing between two adjacent rollers can be adjusted by a mounting frame to adjust the calendering width of the PVC film. The invention is simple to operate and convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of production calendering equipment, in particular to a production calendering equipment for a PVC film. Background Art

[0002] Calender is a machine that uses two or more rollers to press and extend rubber, silicone, silicone rubber, phase change material, PTFE or plastic into a film of a certain thickness and surface shape at a certain temperature, and can coat fiber curtain canvas or steel cord with glue. Calenders can be divided into two-roller, three-roller, four-roller and five-roller calenders according to the number of rollers. PVC film is a widely used plastic product in life made by calenders. It is low-cost and durable, and has become a frequently used decoration and decorative material. When manufacturing PVC films of different thicknesses and materials, different numbers of calender rollers will be used, so a variety of different types of calenders are needed. At this time, people need to purchase a variety of different types of calenders during production and manufacturing, and a lot of maintenance and costs will be consumed when some production lines are not in use;

[0003] However, when producing PVC films of different thicknesses, the production line of the PVC raw materials needs to be replaced, and the number of calendering rollers of the calender cannot be directly adjusted, which reduces production efficiency. Therefore, the present invention proposes a PVC film production calendering equipment to solve the above problem. Summary of the invention

[0004] Based on the background technology, when producing PVC films of different thicknesses, the production line of PVC raw materials needs to be replaced, and the number of calendering rollers of the calender cannot be directly adjusted, which reduces the production efficiency. The present invention proposes a production calendering device for PVC films.

[0005] The present invention provides a calendering device for producing PVC film, comprising:

[0006] Two main frames;

[0007] two sub-frames, the sub-frames being in sliding contact with the main frame;

[0008] Rollers, the number of which is four;

[0009] Docking mechanism and disassembly mechanism, the number of the docking mechanism and the disassembly mechanism are two sets, and the docking mechanism is matched with the disassembly mechanism, the main frame and the auxiliary frame respectively;

[0010] A positioning mechanism and a control mechanism, wherein the number of the positioning mechanism and the control mechanism are both two groups, and the positioning mechanism cooperates with the control mechanism and the rotating shaft respectively;

[0011] The adjusting mechanism includes two groups of adjusting mechanisms, and the adjusting mechanism includes: a motor, two connecting frames, two cross bars, four matching bars, two vertical bars and two driving blocks;

[0012] The motor is fixedly connected to the connecting frame at the lower position, the connecting frame is rotatably connected to the rotating shaft, the connecting frame is fixedly connected to the crossbar, the crossbar is rotatably connected to the matching rod, the matching rod is rotatably connected to the vertical rod, and the vertical rod is fixedly connected to the driving block.

[0013] By means of the above mechanism: by docking the main frame with the sub-frame, additional rollers can be added to the main frame to extend the calendering distance of the PVC film. The spacing between two adjacent rollers can be adjusted through the mounting frame to adjust the calendering width of the PVC film. The operation is simple and easy to use.

[0014] Preferably, the four rollers are all fixedly mounted with symmetrically arranged rotating shafts, and the number of the rotating shafts is eight.

[0015] Furthermore, the rotating shaft is used to connect the roller and the main frame and the auxiliary frame, so that the roller can rotate on the auxiliary frame or the main frame.

[0016] Preferably, both the main frame and the auxiliary frame are provided with sliding grooves, the number of the sliding grooves is two, and the rotating shaft is slidably connected to the inner side of the sliding groove.

[0017] Furthermore, the sliding groove is used for the rotating shaft to slide on the main frame or the auxiliary frame, so that the distance between the rotating shaft and the roller can be adjusted.

[0018] Preferably, the motor output shaft passes through the connecting frame at the lower position, and the motor output shaft is fixedly connected to the roller at the lower position.

[0019] Furthermore, the motor can drive the rotating shaft and the roller at the lower position to rotate.

[0020] Preferably, the docking mechanism comprises: a docking frame, an insertion block, a docking sleeve, a docking block, a fixed block, a sliding block, a driving rod and a reset spring;

[0021] The docking frame is fixedly connected to the main frame and the auxiliary frame respectively, the docking sleeve is fixedly connected to the main frame and the auxiliary frame respectively, the docking frame is fixedly connected to the insertion block, the insertion block is fixedly connected to the docking block, the docking block cooperates with the fixed block, the fixed block is fixedly connected to the sliding block, the sliding block is slidably connected to the inner wall of the docking sleeve, the sliding block is fixedly connected to the driving rod, the driving rod extends outside the docking sleeve, the sliding block is fixedly connected to the reset spring, and the reset spring is fixedly connected to the docking sleeve.

[0022] Furthermore, after the fixed block is engaged with the docking block, the fixed block can connect the docking block and the docking frame with the docking sleeve to block the movement of the docking frame on the docking sleeve, thereby realizing the positioning of the docking frame. The docking frame is installed on the inner side of the docking sleeve, and the docking frame and the docking sleeve can connect the main frame and the auxiliary frame.

[0023] Preferably, the disassembly mechanism comprises: a round rod, a bracket, a push rod, a telescopic rod, a rotating frame, a torsion spring and a handle;

[0024] The round rod is fixedly connected to the driving rod, the bracket and the rotating frame are both fixedly connected to the docking sleeve, the top rod is rotatably connected to the telescopic rod, the telescopic rod is rotatably connected to the rotating frame, the handle is fixedly connected to the telescopic rod, the torsion spring is respectively fixedly connected to the telescopic rod and the rotating frame, the top rod is rotatably connected to the bracket, and the top rod is in sliding contact with the round rod.

[0025] Furthermore, after the handle is pushed and rotated, the handle drives the telescopic rod to rotate and stores force in the torsion spring. At this time, the telescopic rod lifts the push rod, and the push rod can lift the driving rod, so that the driving rod can drive the spring seat to disengage from the docking block, thereby unlocking the docking frame and the docking sleeve.

[0026] Preferably, the positioning mechanism comprises: a positioning rod, a mounting frame, a spring seat, a positioning spring and a positioning frame;

[0027] The positioning rod is fixedly connected to the main frame and the auxiliary frame respectively, the mounting frame is slidably connected to the positioning rod, the positioning frame is slidably connected to the front side of the mounting frame, the positioning frame is fixedly connected to the positioning spring, the positioning spring is fixedly connected to the spring seat, and the spring seat is fixedly connected to the mounting frame.

[0028] Furthermore, after the positioning frame is engaged with the positioning rod, the positioning frame can connect the positioning rod with the mounting frame to block the movement of the mounting frame on the positioning rod, and the mounting frame can block the movement of the grip rod and the push-pull block, and the push-pull block can block the movement of the vertical rod and the cross rod, and the cross rod can position the position of the roller to stably use the roller.

[0029] Preferably, the control mechanism comprises: two push-pull rods, a push-pull block, a gripping rod, an unlocking rod, a matching block, a sliding frame and a pulling rod;

[0030] The push-pull rod is rotatably connected to the push-pull block and the driving block respectively, the push-pull block is fixedly connected to the gripping rod, the gripping rod is fixedly connected to the mounting frame, the unlocking rod is rotatably connected to the mounting frame, the unlocking rod is in sliding contact with the matching block, the matching block is slidably connected to the sliding frame, the sliding frame is slidably connected to the spring seat, and the pulling rod is rotatably connected to the positioning frame and the sliding frame respectively.

[0031] Furthermore, after pressing the unlocking rod and rotating it, the unlocking rod can squeeze the matching block and the sliding frame to move upward, so that the sliding frame can pull the pulling rod, and the pulling rod can pull the positioning frame to disengage from the positioning rod, thereby realizing the positioning of the mounting frame, so that the mounting frame can drive the grip rod and the push-pull block to move. After the push-pull block is pulled upward, the push-pull block can pull the two push-pull rods, and the two push-pull rods then pull the two driving blocks and the two vertical rods closer to each other, and the two vertical rods then pull the two cross rods closer to each other through the four matching rods, so that the two cross rods can drive the two rollers closer to each other to adjust the spacing between the two rollers.

[0032] Preferably, a positioning block is fixedly mounted on the right side of the positioning frame, a plurality of positioning grooves arranged at equal intervals are provided on the left side of the positioning rod, and the outer side of the positioning block is detachably engaged with the inner wall of the positioning groove.

[0033] Furthermore, after the positioning block is inserted into the inner side of the positioning groove, the positioning block can block the movement of the mounting frame, thereby achieving the positioning of the mounting frame.

[0034] Preferably, a rectangular groove is provided on the docking block, and the outer side of the fixing block is detachably engaged with the inner wall of the rectangular groove.

[0035] Furthermore, after the fixing block is inserted into the inner side of the rectangular groove, the fixing block can realize the positioning of the docking block and the docking frame, so that the docking frame can be stably docked with the docking sleeve.

[0036] The beneficial effects of the present invention are:

[0037] After the fixed block is engaged with the docking block, the fixed block can connect the docking block, the docking frame and the docking sleeve to block the movement of the docking frame on the docking sleeve, thereby realizing the positioning of the docking frame. The docking frame is installed on the inner side of the docking sleeve, and the docking frame and the docking sleeve can connect the main frame and the auxiliary frame;

[0038] After the handle is pushed and rotated, the handle drives the telescopic rod to rotate and stores force on the torsion spring. At this time, the telescopic rod lifts the push rod, and the push rod can lift the driving rod, so that the driving rod can drive the fixed block to separate from the docking block, thereby unlocking the docking frame and the docking sleeve.

[0039] After the positioning frame is engaged with the positioning rod, the positioning frame can connect the positioning rod with the mounting frame to block the movement of the mounting frame on the positioning rod, the mounting frame can block the movement of the gripping rod and the push-pull block, the push-pull block will block the movement of the vertical rod and the cross rod, and the cross rod will position the position of the roller to stably use the roller;

[0040] After the unlocking rod is pressed and rotated, the unlocking rod can squeeze the matching block and the sliding frame to move upward, so that the sliding frame can pull the pulling rod, and the pulling rod can pull the positioning frame to separate from the positioning rod, so as to realize the positioning of the mounting frame, so that the mounting frame can drive the gripping rod and the push-pull block to move. After the push-pull block is pulled to move upward, the push-pull block can pull the two push-pull rods, and the two push-pull rods then pull the two driving blocks and the two vertical rods closer to each other, and the two vertical rods then pull the two cross rods closer to each other through the four matching rods, so that the two cross rods can drive the two rollers closer to each other to adjust the distance between the two rollers.

[0041] The present invention can add an extra roller on the main frame by docking the main frame with the auxiliary frame to extend the calendering distance of the PVC film. The spacing between two adjacent rollers can be adjusted by the mounting frame to adjust the calendering width of the PVC film. The operation is simple and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the main cross-sectional view of the structure of a PVC film production calendering device proposed by the present invention;

[0043] Figure 2 This is a schematic diagram of the structure of a calendering device for producing PVC film proposed by the present invention;

[0044] Figure 3 The present invention provides a structural attachment of a PVC film production calendering device. Figure 1 Middle A is an enlarged schematic diagram;

[0045] Figure 4 The present invention provides a structural attachment of a PVC film production calendering device. Figure 1 Middle B is an enlarged schematic diagram;

[0046] Figure 5 The present invention provides a structural attachment of a PVC film production calendering device. Figure 2 Enlarged diagram of middle C:

[0047] Figure 6 A three-dimensional schematic diagram of the structural rollers of a PVC film production calendering device proposed by the present invention:

[0048] Figure 7 A three-dimensional schematic diagram of a structural docking frame of a PVC film production calendering equipment proposed by the present invention:

[0049] Figure 8 A three-dimensional schematic diagram of the structural top rod of a PVC film production calendering equipment proposed by the present invention:

[0050] Fig. 9 A three-dimensional schematic diagram of a structural positioning frame of a PVC film production calendering equipment proposed by the present invention:

[0051] Fig.10 A three-dimensional schematic diagram of a structural positioning rod of a PVC film production calendering device proposed in the present invention.

[0052] In the figure: 1, main frame; 2, auxiliary frame; 3, sliding groove; 4, roller; 5, rotating shaft; 6, docking frame; 7, insertion block; 8, docking sleeve; 9, docking block; 10, fixed block; 11, sliding block; 12, driving rod; 13, reset spring; 14, round rod; 15, bracket; 16, top rod; 17, telescopic rod; 18, rotating frame; 19, torsion spring; 20, handle; 21, motor; 22, connecting frame; 23, cross bar: 24, matching rod: 25, vertical rod: 26, driving block: 27, push-pull rod: 28, push-pull block: 29, grip rod: 30, positioning rod: 31, mounting frame: 32, unlocking rod: 33, matching block: 34, sliding frame: 35, spring seat: 36, pulling rod: 37, positioning spring: 38, positioning frame: 39, positioning block: 40, positioning groove. DETAILED DESCRIPTION

[0053] The present invention will be further explained below in conjunction with specific embodiments.

[0054] refer to Figure 1-10 In this embodiment, a calendering device for producing PVC film is proposed, comprising:

[0055] Two main frames 1;

[0056] Two sub-frames 2, the sub-frames 2 are in sliding contact with the main frame 1;

[0057] Roller 4, the number of rollers 4 is four;

[0058] The docking mechanism and the disassembly mechanism are both in two groups, and the docking mechanism is respectively matched with the disassembly mechanism, the main frame 1 and the auxiliary frame 2;

[0059] The positioning mechanism and the control mechanism are both in two groups, and the positioning mechanism is matched with the control mechanism and the rotating shaft 5 respectively;

[0060] The adjusting mechanism includes two groups of adjusting mechanisms, which include: a motor 21, two connecting frames 22, two cross bars 23, four matching bars 24, two vertical bars 25 and two driving blocks 26;

[0061] The motor 21 is fixedly connected to the connecting frame 22 at the lower position, the connecting frame 22 is rotatably connected to the rotating shaft 5, the connecting frame 22 is fixedly connected to the cross bar 23, the cross bar 23 is rotatably connected to the matching rod 24, the matching rod 24 is rotatably connected to the vertical rod 25, and the vertical rod 25 is fixedly connected to the driving block 26.

[0062] By means of the above mechanism: by docking the main frame 1 with the sub-frame 2, an additional roller 4 can be added to the main frame 1 to extend the calendering distance of the PVC film. The spacing between two adjacent rollers 4 can be adjusted by the mounting frame 31 to adjust the calendering width of the PVC film. The operation is simple and easy to use.

[0063] In this embodiment, the four rollers 4 are all fixedly mounted with symmetrically arranged rotating shafts 5, and the number of the rotating shafts 5 is eight. The rotating shafts 5 are used to connect the rollers 4 and the main frame 1 and the sub-frame 2, so that the rollers 4 can rotate on the sub-frame 2 or the main frame 1.

[0064] In this embodiment, sliding grooves 3 are provided on the main frame 1 and the sub-frame 2. There are two sliding grooves 3. The rotating shaft 5 is slidably connected to the inner side of the sliding groove 3. The sliding groove 3 is used for the rotating shaft 5 to slide on the main frame 1 or the sub-frame 2, so that the distance between the rotating shaft 5 and the roller 4 can be adjusted.

[0065] In this embodiment, the output shaft of the motor 21 passes through the connecting frame 22 at the lower position, and the output shaft of the motor 21 is fixedly connected to the roller 4 at the lower position, so that the motor 21 can drive the rotating shaft 5 and the roller 4 at the lower position to rotate.

[0066] In this embodiment, the docking mechanism includes: a docking frame 6, an insertion block 7, a docking sleeve 8, a docking block 9, a fixed block 10, a sliding block 11, a driving rod 12 and a return spring 13;

[0067] The docking frame 6 is fixedly connected to the main frame 1 and the sub-frame 2 respectively, and the docking sleeve 8 is fixedly connected to the main frame 1 and the sub-frame 2 respectively. The docking frame 6 is fixedly connected to the insertion block 7, and the insertion block 7 is fixedly connected to the docking block 9. The docking block 9 cooperates with the fixed block 10. The fixed block 10 is fixedly connected to the sliding block 11. The sliding block 11 is slidably connected to the inner wall of the docking sleeve 8. The sliding block 11 is fixedly connected to the driving rod 12, and the driving rod 12 extends to the outside of the docking sleeve 8. The sliding block 11 is fixedly connected to the return spring 13, and the return spring 13 is fixedly connected to the docking sleeve 8. After the fixed block 10 is engaged with the docking block 9, the fixed block 10 can connect the docking block 9 and the docking frame 6 with the docking sleeve 8 to block the movement of the docking frame 6 on the docking sleeve 8 to achieve the positioning of the docking frame 6. The docking frame 6 is installed on the inner side of the docking sleeve 8, and the docking frame 6 and the docking sleeve 8 can connect the main frame 1 and the sub-frame 2.

[0068] In this embodiment, the disassembly mechanism includes: a round rod 14, a bracket 15, a top rod 16, a telescopic rod 17, a rotating frame 18, a torsion spring 19 and a handle 20;

[0069] The round rod 14 is fixedly connected to the driving rod 12, the bracket 15 and the rotating frame 18 are both fixedly connected to the docking sleeve 8, the push rod 16 is rotatably connected to the telescopic rod 17, the telescopic rod 17 is rotatably connected to the rotating frame 18, the handle 20 is fixedly connected to the telescopic rod 17, the torsion spring 19 is respectively fixedly connected to the telescopic rod 17 and the rotating frame 18, the push rod 16 is rotatably connected to the bracket 15, and the push rod 16 is in sliding contact with the round rod 14. After the handle 20 is pushed and rotated, the handle 20 drives the telescopic rod 17 to rotate and accumulates force in the torsion spring 19. At this time, the telescopic rod 17 lifts the push rod 16 again, and the push rod 16 can lift the driving rod 12, so that the driving rod 12 can drive the spring seat 35 to disengage from the docking block 9, thereby unlocking the docking frame 6 and the docking sleeve 8.

[0070] In this embodiment, the positioning mechanism includes: a positioning rod 30, a mounting frame 31, a spring seat 35, a positioning spring 37 and a positioning frame 38;

[0071] The positioning rod 30 is fixedly connected to the main frame 1 and the sub-frame 2 respectively, the mounting frame 31 is slidably connected to the positioning rod 30, the positioning frame 38 is slidably connected to the front side of the mounting frame 31, the positioning frame 38 is fixedly connected to the positioning spring 37, the positioning spring 37 is fixedly connected to the spring seat 35, and the spring seat 35 is fixedly connected to the mounting frame 31. After the positioning frame 38 is engaged with the positioning rod 30, the positioning frame 38 can connect the positioning rod 30 with the mounting frame 31 to block the movement of the mounting frame 31 on the positioning rod 30, and the mounting frame 31 can block the movement of the gripping rod 29 and the push-pull block 28, and the push-pull block 28 will block the movement of the vertical rod 25 and the cross bar 23, and the cross bar 23 will position the position of the roller 4 to stably use the roller.

[0072] In this embodiment, the control mechanism includes: two push-pull rods 27, a push-pull block 28, a grip rod 29, an unlocking rod 32, a matching block 33, a sliding frame 34 and a pulling rod 36;

[0073] The push-pull rod 27 is rotatably connected to the push-pull block 28 and the driving block 26 respectively, the push-pull block 28 is fixedly connected to the gripping rod 29, the gripping rod 29 is fixedly connected to the mounting frame 31, the unlocking rod 32 is rotatably connected to the mounting frame 31, the unlocking rod 32 is in sliding contact with the matching block 33, the matching block 33 is slidably connected to the sliding frame 34, the sliding frame 34 is slidably connected to the spring seat 35, and the pulling rod 36 is rotatably connected to the positioning frame 38 and the sliding frame 34 respectively. After the unlocking rod 32 is pressed to rotate, the unlocking rod 32 can squeeze the matching block 33 and the sliding frame 34 to move upward, so that the sliding frame 34 can By pulling the pulling rod 36, the pulling rod 36 can pull the positioning frame 38 to disengage from the positioning rod 30, thereby realizing the positioning of the mounting frame 31, so that the mounting frame 31 can drive the gripping rod 29 and the push-pull block 28 to move. After the push-pull block 28 is pulled to move upward, the push-pull block 28 can pull the two push-pull rods 27, and the two push-pull rods 27 then pull the two driving blocks 26 and the two vertical rods 25 closer to each other. The two vertical rods 25 then pull the two cross rods 23 closer to each other through the four matching rods 24, so that the two cross rods 23 can drive the two rollers 4 closer to each other to adjust the distance between the two rollers 4.

[0074] In this embodiment, a positioning block 39 is fixedly installed on the right side of the positioning frame 38, and a plurality of positioning grooves 40 arranged at equal intervals are opened on the left side of the positioning rod 30. The outer side of the positioning block 39 and the inner wall of the positioning groove 40 can be detachably connected. After the positioning block 39 is inserted into the inner side of the positioning groove 40, the positioning block 39 can block the movement of the mounting frame 31, thereby realizing the positioning of the mounting frame 31.

[0075] In this embodiment, a rectangular groove is provided on the docking block 9, and the outer side of the fixing block 10 can be detachably engaged with the inner wall of the rectangular groove. After the fixing block 10 is inserted into the inner side of the rectangular groove, the fixing block 10 can realize the positioning of the docking block 9 and the docking frame 6, so that the docking frame 6 can be stably docked with the docking sleeve 8.

[0076] Working principle: When the PVC film needs to be calendered, the PVC film is first placed between two adjacent rollers 4, and then the distance between the two rollers 4 is adjusted. First, the unlocking lever 32 is pressed on the mounting frame 31 to rotate. After the unlocking lever 32 is pressed and rotated, the unlocking lever 32 can squeeze the matching block 33 and the sliding frame 34 to move upward, so that the sliding frame 34 can pull the pulling rod 36, and the pulling rod 36 can pull the positioning frame 38 to disengage from the positioning rod 30, so as to realize the positioning of the mounting frame 31, so that the mounting frame 31 can drive the gripping rod 29 and the push-pull block 28 to move. After the push-pull block 28 is pulled to move upward, the push-pull block 28 is The two push-pull rods 27 can be pulled, and the two push-pull rods 27 can then pull the two driving blocks 26 and the two vertical rods 25 closer to each other, and the two vertical rods 25 can then pull the two cross bars 23 closer to each other through the four matching rods 24, so that the two cross bars 23 can drive the two rollers 4 closer to each other to adjust the spacing between the two rollers 4. After the adjustment, the unlocking rod 32 is released so that the positioning frame 38 can engage with the positioning rod 30. After the positioning frame 38 engages with the positioning rod 30, the positioning frame 38 can connect the positioning rod 30 with the mounting frame 31 to block the movement of the mounting frame 31 on the positioning rod 30, and the mounting frame 31 can block the gripping rod 29 and the push-pull rod 27 from moving. When the pull block 28 moves, the push-pull block 28 will block the movement of the vertical rod 25 and the cross rod 23, and the cross rod 23 will position the roller 4 to stably use the roller. At this time, the motor 21 is started, and the motor 21 can drive the roller 4 located at the lower position to rotate, so that the roller 4 can calender the PVC film. At this time, if the sub-frame 2 needs to be disassembled, it is only necessary to press the handle 20 on the rotating frame 18 to rotate. After the handle 20 is pushed and rotated, the handle 20 drives the telescopic rod 17 to rotate and accumulates force in the torsion spring 19. At this time, the telescopic rod 17 lifts the top rod 16, and the top rod 16 can lift the driving rod 12, so that the driving rod 1 2 can drive the fixing block 10 to disengage from the docking block 9, realize the unlocking of the docking frame 6 and the docking sleeve 8, and then the main frame 1 and the auxiliary frame 2 can be separated. When it is necessary to install the auxiliary frame 2 on the main frame 1 and increase the number of rollers 4, it is only necessary to fit the auxiliary frame 2 with the main frame 1, and the docking frame 6 is engaged with the docking sleeve 8. After the fixing block 10 is engaged with the docking block 9, the fixing block 10 can connect the docking block 9 and the docking frame 6 with the docking sleeve 8 to block the movement of the docking frame 6 on the docking sleeve 8, realize the positioning of the docking frame 6, and install the docking frame 6 on the inner side of the docking sleeve 8. The docking frame 6 and the docking sleeve 8 can connect the main frame 1 and the auxiliary frame 2.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A calendering device for producing PVC film, characterized in that: include Main frame (1); A sub-frame (2), the sub-frame (2) being in sliding contact with the main frame (1); Rollers (4), the number of the rollers (4) is four; A docking mechanism and a disassembly mechanism, wherein the docking mechanism and the disassembly mechanism are both in two groups, and the docking mechanism is respectively matched with the disassembly mechanism, the main frame (1) and the auxiliary frame (2); A positioning mechanism and a control mechanism, wherein the number of the positioning mechanism and the control mechanism are both two sets, and the positioning mechanism cooperates with the control mechanism and the rotating shaft (5) respectively; An adjustment mechanism, wherein the number of the adjustment mechanism is two groups, and the adjustment mechanism comprises: a motor (21), two connecting frames (22), two cross bars (23), four matching bars (24), two vertical bars (25) and two driving blocks (26); The motor (21) is fixedly connected to a connecting frame (22) at a lower position, the connecting frame (22) is rotatably connected to the rotating shaft (5), the connecting frame (22) is fixedly connected to the crossbar (23), the crossbar (23) is rotatably connected to the matching rod (24), the matching rod (24) is rotatably connected to the vertical rod (25), and the vertical rod (25) is fixedly connected to the driving block (26); The docking mechanism comprises: a docking frame (6), an insertion block (7), a docking sleeve (8), a docking block (9), a fixed block (10), a sliding block (11), a driving rod (12) and a return spring (13); The docking frame (6) is fixedly connected to the main frame (1) and the auxiliary frame (2), respectively; the docking sleeve (8) is fixedly connected to the main frame (1) and the auxiliary frame (2), respectively; the docking frame (6) is fixedly connected to the insertion block (7), the insertion block (7) is fixedly connected to the docking block (9), the docking block (9) cooperates with the fixed block (10), the fixed block (10) is fixedly connected to the sliding block (11), the sliding block (11) is slidably connected to the inner wall of the docking sleeve (8), the sliding block (11) is fixedly connected to the driving rod (12), the driving rod (12) extends outside the docking sleeve (8), the sliding block (11) is fixedly connected to the return spring (13), and the return spring (13) is fixedly connected to the docking sleeve (8); The disassembly mechanism comprises: a round rod (14), a bracket (15), a push rod (16), a telescopic rod (17), a rotating frame (18), a torsion spring (19) and a handle (20); The round rod (14) is fixedly connected to the driving rod (12), the bracket (15) and the rotating frame (18) are both fixedly connected to the docking sleeve (8), the top rod (16) is rotatably connected to the telescopic rod (17), the telescopic rod (17) is rotatably connected to the rotating frame (18), the handle (20) is fixedly connected to the telescopic rod (17), the torsion spring (19) is respectively fixedly connected to the telescopic rod (17) and the rotating frame (18), the top rod (16) is rotatably connected to the bracket (15), and the top rod (16) is in sliding contact with the round rod (14); The positioning mechanism comprises: a positioning rod (30), a mounting frame (31), a spring seat (35), a positioning spring (37) and a positioning frame (38); The positioning rod (30) is fixedly connected to the main frame (1) and the auxiliary frame (2), respectively; the mounting frame (31) is slidably connected to the positioning rod (30); the positioning frame (38) is slidably connected to the front side of the mounting frame (31); the positioning frame (38) is fixedly connected to the positioning spring (37); the positioning spring (37) is fixedly connected to the spring seat (35); and the spring seat (35) is fixedly connected to the mounting frame (31); The control mechanism comprises: two push-pull rods (27), a push-pull block (28), a grip rod (29), an unlocking rod (32), a matching block (33), a sliding frame (34) and a pulling rod (36); The push-pull rod (27) is rotatably connected to the push-pull block (28) and the driving block (26), the push-pull block (28) is fixedly connected to the gripping rod (29), the gripping rod (29) is fixedly connected to the mounting frame (31), the unlocking rod (32) is rotatably connected to the mounting frame (31), the unlocking rod (32) is in sliding contact with the matching block (33), the matching block (33) is fixedly connected to the sliding frame (34), the sliding frame (34) is slidably connected to the spring seat (35), and the pulling rod (36) is rotatably connected to the positioning frame (38) and the sliding frame (34), respectively; A positioning block (39) is fixedly mounted on the right side of the positioning frame (38), and a plurality of positioning grooves (40) arranged at equal intervals are formed on the left side of the positioning rod (30). The outer side of the positioning block (39) is detachably engaged with the inner wall of the positioning groove (40).

2. The calendering equipment for producing a PVC film according to claim 1, characterized in that: The four rollers (4) are all fixedly mounted with rotating shafts (5) that are symmetrically arranged, and the number of the rotating shafts (5) is eight.

3. The calendering equipment for producing a PVC film according to claim 1, characterized in that: The main frame (1) and the auxiliary frame (2) are both provided with sliding grooves (3), the number of the sliding grooves (3) being two, and the rotating shaft (5) is slidably connected to the inner side of the sliding grooves (3).

4. The calendering equipment for producing PVC film according to claim 1, characterized in that: The output shaft of the motor (21) passes through the connecting frame (22) at the lower position, and the output shaft of the motor (21) is fixedly connected to the roller (4) at the lower position.

5. The calendering equipment for producing PVC film according to claim 1, characterized in that: The docking block (9) is provided with a rectangular groove, and the outer side of the fixing block (10) is detachably engaged with the inner wall of the rectangular groove.

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