A method for producing a PVC heat-shrinkable film

Abstract

The application relates to the technical field of PVC film production and processing, in particular to a PVC heat-shrinkable film production method, which comprises a processing table, the lower surface of the processing table is fixedly provided with supporting legs, the upper surface of the processing table is provided with cross frames, guide rails are arranged between the cross frames, movable pieces are slidably connected to the outer surfaces of the guide rails, hydraulic cylinders are arranged on the upper surfaces of the movable pieces, bottom blocks are arranged at the output ends of the hydraulic cylinders, cutters are arranged on the lower surfaces of the bottom blocks, end blocks are symmetrically arranged at the two ends of the bottom blocks, and air cylinders are arranged on the upper surfaces of the end blocks. Through the arrangement of the bottom block, the end block, the air cylinder, the bottom plate, the support and the roller and other related structures, when the cutter cuts the film material, the pressing and guiding effects of the roller can be utilized, the cutting effect of the cutter can be further improved, the film material can be prevented from being lifted during the movement of the cutter, and the smooth production process can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PVC film production and processing, and particularly relates to a PVC heat shrinkable film production method. BACKGROUND

[0002] PVC is mainly composed of polyvinyl chloride, which is slightly yellow and translucent, has luster, and has higher transparency than polyethylene and polypropylene. Soft products are flexible and have a sticky feel. The hardness of hard products is higher than that of low-density polyethylene and lower than that of polypropylene. The PVC heat shrinkable film is a very common PVC product, which has good transparency, easy shrinkage, high strength, and adjustable shrinkage rate according to user needs, and high operability. However, the last cutting stage is essential in the production process of the PVC heat shrinkable film. However, due to the particularity of the film material properties, the film material is easily lifted together with the cutter during the lifting process after cutting, which causes the film material to be damaged and increases the scrap rate, and needs to be improved. SUMMARY

[0003] The present application aims to solve the problems in the prior art and provides a PVC heat shrinkable film production method.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a PVC heat shrinkable film production method, comprising a processing table, the lower surface of the processing table is fixedly installed with supporting legs, the upper surface of the processing table is installed with cross frames, the cross frames are provided with guide rails, the outer surface of the guide rails is slidably connected with movable parts, the upper surface of the movable parts is installed with hydraulic cylinders, the output end of the hydraulic cylinders is installed with bottom blocks, the lower surface of the bottom blocks is installed with cutters, the both ends of the bottom blocks are symmetrically installed with end blocks, the upper surface of the end blocks is installed with air cylinders, the output end of the air cylinders is installed with bottom plates, the lower surface of the bottom plates is symmetrically installed with supports, and the supports are rotatably connected with rollers.

[0005] In order to improve the stability of the processing table, the bottom end of the supporting leg is symmetrically installed with a connecting rod, and the lower surface of the supporting leg is installed with an anti-skid foot.

[0006] In order to prevent the film material from being attached to the roller, the outer surface of the roller is uniformly provided with an anti-sticking coating.

[0007] In order to improve the guiding effect of the film material, one end of the processing table is symmetrically installed with a motor, the output end of the motor is installed with a threaded column, the outer surface of the threaded column is sleeved with a lifting screw block, and two groups of lifting screw blocks are rotatably connected with guide rollers.

[0008] In order to improve the limiting effect of the lifting screw block, the processing table is improved, the upper surface of one end of the processing table close to the guide roller is symmetrically provided with a limiting plate, the outer surface of the lifting screw block is provided with a limiting block, and the limiting block is inserted between the two groups of limiting plates.

[0009] In order to improve the accuracy of the adjustment process, the outer surface of the limiting plate is uniformly provided with a scale, and the limiting block is symmetrically provided with a pointer away from one end of the lifting screw block.

[0010] In order to facilitate the installation of the motor, one end of the processing table is provided with a mounting frame, and two groups of the motor are symmetrically fixedly installed on the upper surface of the mounting frame.

[0011] In order to improve the taking-out effect of the film material, the processing table is improved, two side plates are symmetrically installed on the two sides of the processing table, a guide frame is installed on the upper surface of the side plate, a sliding plate is inserted in the guide frame, a shovel block is installed on one end of the sliding plate close to the guide rail, a vertical plate is installed on the upper surface of the guide frame, a guide rod is installed on the outer surface of the vertical plate, a positioning end disc is installed on one end of the guide rod, a convex plate is installed on the upper surface of the sliding plate, and the convex plate is sleeved on the outer surface of the guide rod.

[0012] In order to improve the moving effect of the sliding plate, rubber sleeves are symmetrically installed on one end of the sliding plate, and convex strips are uniformly arranged on the outer surface of the rubber sleeves.

[0013] The production method of the PVC heat shrinkable film comprises the following steps:

[0014] Step one: when the workers use the device, first judge the actual situation of the film material, then adjust the position of the guide roller, at this time the workers can directly start two groups of motors, two groups of motors will rotate with two groups of threaded columns at the same time, at this time under the auxiliary action of the limiting plate and the limiting block, the lifting screw block will move with the guide roller, so as to adjust the height position of the guide roller, after the position adjustment is completed, the film material is sent into the processing table through the guide roller;

[0015] Step two: after the film material is sent into the processing table, the equipment is started, the guide rail moves to the specified position, then the hydraulic cylinder falls with the cutter, the cutter is completed, then the air cylinder is started, the air cylinder drives the roller to fall and press on the upper surface of the film material, then the movable part moves on the guide rail, so as to drive the cutter to move, so as to complete the cutting action, after the cutting is completed, the cutter is lifted, at this time the air cylinder continues to drive the roller to press on the upper surface of the film material, so as to avoid the situation that the film material is lifted during the movement of the cutter, thereby ensuring the smooth progress of the whole production process.

[0016] Step three: after cutting, if the film material is attached to the processing table, the worker can directly push the sliding plate with the shovel block, and the shovel block will directly lift the two sides of the film material, thereby avoiding the film material being attached to the processing table surface, causing the material to be difficult to take, and the operation is simple and convenient.

[0017] Compared with the prior art, the advantages and positive effects of the present application are that:

[0018] 1、In the application, by setting the bottom block, end block, air cylinder, bottom plate, support and roller and other related structures, the pressing and guiding effect of the roller can be utilized when the cutter cuts the film material, which can further improve the cutting effect of the cutter, and can also avoid the film material being lifted during the movement of the cutter, thereby ensuring the smooth progress of the entire production process.

[0019] 2、In the application, by setting the motor, threaded column, lifting screw block and guide roller and other related structures, the film material can be guided when it is fed into the processing table, and the overall flatness of the film material can be ensured, and the adjustment can be made automatically, which has stronger adaptability and better use effect.

[0020] 3、In the application, by setting the side plate, guide frame, sliding plate and shovel block and other related structures, the two sides of the film material can be lifted after the device is cut, thereby avoiding the film material being attached to the processing table surface, causing the material to be difficult to take, and the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A three-dimensional structure schematic diagram of a PVC heat shrinkable film production method is provided for the present application;

[0022] Figure 2 A cutter structure schematic diagram of a PVC heat shrinkable film production method is provided for the present application;

[0023] Figure 3 A side view structure schematic diagram of a PVC heat shrinkable film production method is provided for the present application;

[0024] Figure 4 A PVC heat shrinkable film production method is provided for the present application Figure 3 An enlarged view of A in the application;

[0025] Figure 5 A PVC heat shrinkable film production method is provided for the present application Figure 3 An enlarged view of B in the application.

[0026] LEGEND:

[0027] 1, processing platform; 2, leg; 3, cross frame; 4, guide rail; 5, hydraulic cylinder; 6, cutter; 7, bottom block; 8, end block; 9, air cylinder; 10, bottom plate; 11, support; 12, roller; 13, motor; 14, threaded column; 15, lifting screw block; 16, guide roller; 17, limiting plate; 18, limiting block; 19, scale; 20, pointer; 21, mounting frame; 22, side plate; 23, guide frame; 24, sliding plate; 25, shovel block; 26, vertical plate; 27, convex plate; 28, guide rod; 29, positioning end disc; 30, rubber sleeve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0029] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0030] Example one

[0031] Please refer to Figures 1-2 The present application provides a technical scheme: a PVC heat shrinkable film production method, comprising a processing platform 1, the lower surface of the processing platform 1 is fixedly installed with a leg 2, the upper surface of the processing platform 1 is installed with a cross frame 3, the guide rails 4 are arranged between the cross frames 3, the outer surface of the guide rails 4 is slidably connected with a movable part, the upper surface of the movable part is installed with a hydraulic cylinder 5, the output end of the hydraulic cylinder 5 is installed with a bottom block 7, the lower surface of the bottom block 7 is installed with a cutter 6, the two ends of the bottom block 7 are symmetrically installed with end blocks 8, the upper surface of the end blocks 8 is installed with air cylinders 9, the output end of the air cylinders 9 is installed with a bottom plate 10, the lower surface of the bottom plate 10 is symmetrically installed with supports 11, the roller 12 is rotatably connected between the supports 11, by arranging the bottom block 7, the end block 8, the air cylinder 9, the bottom plate 10, the support 11 and the roller 12 and other related structures, when the cutter 6 cuts the film material, the pressing and guiding effect of the roller 12 can be utilized, on the one hand, the cutting effect of the cutter 6 can be further improved, on the other hand, the situation that the film material is lifted during the movement of the cutter 6 can be avoided, thereby ensuring the smooth progress of the entire production process.

[0032] Please refer to Figure 1And Figure 2 The bottom end of the leg 2 is symmetrically provided with a connecting rod, and the lower surface of the leg 2 is provided with an anti-skid foot. The connecting rod cooperates with the anti-skid foot to fully ensure the stability of the processing table 1. The outer surface of the roller 12 is uniformly provided with an anti-sticking coating, which can improve the smoothness of the surface of the roller 12 and prevent the film material from adhering to the outer surface of the roller 12.

[0033] Example two

[0034] Please refer to Figure 1 , Figure 3 and Figure 4 One end of the processing table 1 is symmetrically provided with a motor 13 on the lower surface. The output end of the motor 13 is provided with a threaded column 14. The outer surface of the threaded column 14 is sleeved with a lifting screw block 15. Two groups of lifting screw blocks 15 are rotatably connected with guide rollers 16. By setting the motor 13, the threaded column 14, the lifting screw block 15 and the guide roller 16 and other related structures, the film material can be guided when it is fed into the processing table 1, and the overall flatness of the film material can be ensured. At the same time, it can be adjusted automatically, has stronger adaptability, better use effect, and the upper surface of one end of the processing table 1 close to the guide roller 16 is symmetrically provided with a limiting plate 17. The outer surface of the lifting screw block 15 is provided with a limiting block 18. The limiting block 18 is inserted between the two groups of limiting plates 17. The limiting plate 17 plus the limiting block 18 can further improve the limiting effect of the lifting screw block 15. The outer surface of the limiting plate 17 is uniformly provided with a scale 19. The end of the limiting block 18 away from the lifting screw block 15 is symmetrically provided with a pointer 20. The scale 19 and the pointer 20 can fully ensure the accuracy of the adjustment process. One end of the processing table 1 is provided with a mounting frame 21. Two groups of motors 13 are symmetrically fixedly installed on the upper surface of the mounting frame 21. The mounting frame 21 mainly facilitates the fixed installation of the motor 13.

[0035] Example three

[0036] Please refer to Figure 1 , Figure 3 and Figure 5Two sides of the processing table 1 are symmetrically provided with side plates 22, the upper surfaces of the side plates 22 are provided with guide frames 23, the interiors of the guide frames 23 are provided with sliding plates 24, one end of the sliding plate 24 close to the guide rail 4 is provided with a shovel block 25, the upper surfaces of the guide frames 23 are provided with vertical plates 26, the outer surfaces of the vertical plates 26 are provided with guide rods 28, one end of the guide rod 28 is provided with a positioning end disc 29, the upper surfaces of the sliding plates 24 are provided with convex plates 27, the convex plates 27 are sleeved on the outer surfaces of the guide rods 28, through the arrangement of the side plates 22, the guide frames 23, the sliding plates 24 and the shovel block 25 and other related structures, after the cutting of the device is completed, the shovel block 25 can be used to lift the two sides of the film material, so that the film material is prevented from being attached to the surface of the processing table 1, and the difficulty in taking the film material is avoided, and the operation is simple and convenient, one end of the sliding plate 24 is symmetrically provided with rubber sleeves 30, the outer surfaces of the rubber sleeves 30 are uniformly provided with convex strips, the rubber sleeves 30 plus the convex strips can improve the friction, so as to ensure the moving effect of the sliding plate 24.

[0037] The production method of the PVC heat shrinkable film comprises the following steps:

[0038] Step one: when the workers use the device, first judge the actual situation of the film material, then adjust the position of the guide roller 16, at this time the workers can directly start the two groups of motors 13, the two groups of motors 13 will simultaneously drive the two groups of threaded columns 14 to rotate, at this time, under the auxiliary action of the limiting plates 17 and the limiting blocks 18, the lifting screw blocks 15 will drive the guide rollers 16 to move, so as to adjust the height position of the guide rollers 16, after the position adjustment is completed, the film material is sent to the processing table 1 through the guide rollers 16;

[0039] Step two: after the film material is sent to the processing table 1, the equipment is started, the guide rail 4 moves to the specified position, then the hydraulic cylinder 5 drives the cutter 6 to fall, the cutter 6 is completed, then the air cylinder 9 is started, the air cylinder 9 drives the roller 12 to fall and press on the upper surface of the film material, then the movable part moves on the guide rail 4, so as to drive the cutter 6 to move, so as to complete the cutting action, after the cutting is completed, the cutter 6 is lifted, at this time the air cylinder 9 continues to drive the roller 12 to press on the upper surface of the film material, so that the film material is prevented from being lifted during the movement of the cutter 6, and the smooth progress of the whole production process is ensured;

[0040] Step three: after the cutting is completed, if the film material is attached to the processing table 1, the workers can directly drive the sliding plate 24 to move with the shovel block 25, the shovel block 25 directly lifts the two sides of the film material, so that the film material is prevented from being attached to the surface of the processing table 1, and the difficulty in taking the film material is avoided, and the operation is simple and convenient.

[0041] Working principle: when the staff uses the device, first judge the actual situation of the film material, then adjust the position of the guide roller 16, at this time the staff can directly open two groups of motor 13, two groups of motor 13 will be with two groups of screw column 14 rotating, at this time under the auxiliary action of limiting plate 17 and limiting block 18, lifting block 15 will be with guide roller 16 movement, so as to adjust the height position of guide roller 16, position adjustment is completed, again through the guide roller 16 into the processing table 1 on the film material, after the film material is sent into the processing table 1, at this time the equipment is opened, guide rail 4 moves to the specified position, then hydraulic cylinder 5 with cutter 6 falls, complete the tool setting, then open the cylinder 9, cylinder 9 will drive the roller 12 down, and press on the upper surface of the film material, then the moving part moves on the guide rail 4, so as to move with cutter 6, so as to complete the cutting action, after cutting, cutter 6 is lifted, at this time the cylinder 9 will continue to drive the roller 12 press on the upper surface of the film material, so as to avoid the film material being lifted in the process of cutter 6 movement, so as to ensure the smooth progress of the whole production process, after cutting, if the film material is attached to the processing table 1, at this time the staff can directly push the slide plate 24 with shovel block 25 movement, shovel block 25 will directly lift the two sides of the film material, so as to avoid the film material attached to the surface of the processing table 1, leading to the difficult situation of taking material, simple and convenient operation.

[0042] The above is only the preferred embodiment of the present application, not other forms of the present application limit, any skilled in the art may use the above disclosed technical content to change or modify as equivalent changes equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution content of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A method for producing PVC heat-shrinkable films, comprising a processing station (1), characterized by the fact that: The lower surface of the processing table (1) is fixedly provided with supporting legs (2), the upper surface of the processing table (1) is provided with cross frames (3), guide rails (4) are arranged between the cross frames (3), the outer surface of the guide rails (4) is slidably connected with movable parts, the upper surface of the movable parts is provided with hydraulic cylinders (5), the output end of the hydraulic cylinders (5) is provided with bottom blocks (7), the lower surface of the bottom blocks (7) is provided with cutters (6), the two ends of the bottom blocks (7) are symmetrically provided with end blocks (8), the upper surface of the end blocks (8) is provided with air cylinders (9), the output end of the air cylinders (9) is provided with bottom plates (10), the lower surface of the bottom plates (10) is symmetrically provided with supports (11), the supports (11) are rotatably connected with rollers (12) between them. The method comprises the following steps: Step one: when the staff uses the device, first judge the actual situation of the film material, then adjust the position of the guide roller (16), at this time the staff can directly start two groups of motors (13), two groups of motors (13) will simultaneously drive two groups of threaded columns (14) to rotate, at this time under the auxiliary action of the limiting plate (17) and the limiting block (18), the lifting screw block (15) will drive the guide roller (16) to move, so as to adjust the height position of the guide roller (16), after the position adjustment is completed, the film material is sent into the processing table (1) through the guide roller (16); Step two: after the film material is sent into the processing table (1), the equipment is started, the guide rail (4) moves to the specified position, then the hydraulic cylinder (5) drives the cutter (6) to fall, completes the tool setting, then starts the air cylinder (9) again, the air cylinder (9) drives the roller (12) to fall and press on the upper surface of the film material, then the movable part moves on the guide rail (4), so as to drive the cutter (6) to move, so as to complete the cutting action, after cutting is completed, the cutter (6) is lifted, at this time the air cylinder (9) continues to drive the roller (12) to press on the upper surface of the film material, so as to avoid the film material being lifted during the movement of the cutter (6), so as to ensure the smooth progress of the whole production process; Step three: after cutting is completed, if the film material is attached to the processing table (1), at this time the staff can directly drive the sliding plate (24) to move with the shovel block (25), the shovel block (25) will directly lift the two sides of the film material, so as to avoid the film material being adhered to the surface of the processing table, causing the difficulty in taking the material, the operation is simple and convenient.

2. The method of claim 1, wherein: The bottom end of the supporting leg (2) is symmetrically provided with connecting rods, the lower surface of the supporting leg (2) is provided with antiskid feet.

3. The method of claim 1, wherein: The outer surface of the roller (12) is uniformly provided with an anti-sticking coating.

4. The method of claim 1, wherein: One end of the processing table (1) is symmetrically provided with a motor (13), the output end of the motor (13) is provided with a threaded column (14), the outer surface of the threaded column (14) is sleeved with a lifting screw block (15), two groups of lifting screw blocks (15) are rotatably connected with guide rollers (16).

5. The method of claim 4, wherein: The processing table (1) is symmetrically installed with a limiting plate (17) on the upper surface of one end close to the guide roller (16), and the outer surface of the lifting screw block (15) is installed with a limiting block (18) which is inserted between the two groups of limiting plates (17).

6. The method of claim 5, wherein: The outer surface of the limiting plate (17) is uniformly provided with a scale (19), and the limiting block (18) is symmetrically installed with a pointer (20) away from one end of the lifting screw block (15).

7. The method of claim 4, wherein: One end of the processing table (1) is installed with a mounting rack (21), and the two groups of motors (13) are symmetrically fixed on the upper surface of the mounting rack (21).

8. The method of claim 1, wherein: The two sides of the processing table (1) are symmetrically installed with a side plate (22), the upper surface of the side plate (22) is installed with a guide frame (23), the inner part of the guide frame (23) is inserted with a sliding plate (24), one end of the sliding plate (24) close to the guide rail (4) is installed with a shovel block (25), the upper surface of the guide frame (23) is installed with a vertical plate (26), the outer surface of the vertical plate (26) is installed with a guide rod (28), one end of the guide rod (28) is installed with a positioning end disc (29), the upper surface of the sliding plate (24) is installed with a convex plate (27), and the convex plate (27) is sleeved on the outer surface of the guide rod (28).

9. The method of claim 8, wherein: One end of the sliding plate (24) is symmetrically installed with a rubber sleeve (30), and the outer surface of the rubber sleeve (30) is uniformly provided with a convex strip.

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