A film automatic deviation correction constant tension four-station winding device

Abstract

The invention relates to a four-station winding device for automatic film deviation correction and constant tension, comprising a frame and a control system. The frame is provided with a deviation correction structure, a cutting structure and a winding structure from top to bottom. The deviation correction structure comprises a first traction roller, a deviation correction frame, a second traction roller, a deviation correction sensor and a deviation correction adjustment cylinder. The deviation correction frame is composed of a bracket and two third traction rollers and a fourth traction roller on the same horizontal line. The bracket is a horizontally placed square frame. A rotating shaft is provided at the center position below the bracket. The bracket is connected to the frame through the rotating shaft. A bracket hand is provided above the bracket and the third traction roller and the fourth traction roller are fixed through the bracket hand. The device can solve the problem of film deviation during long-distance processing and transmission.

Description

Technical Field

[0001] The invention belongs to the technical field of film cutting and winding machinery, and in particular belongs to a film automatic deviation correction constant tension four-station winding device. Background Art

[0002] The existing plastic film blowing machine is composed of an extruder (the extruder heats and extrudes the plastic into a molten state, which is then extruded from a die head and blown into a film bubble by compressed air. The cross-section of the film bubble is annular), a traction roller installed above the die head, and a winding device. A herringbone plate is also arranged below the traction roller. The herringbone plate is used to squeeze the film bubble blown out from the extruder die head into two layers of interconnected flat films before winding for the convenience of winding (since the cross-section of the film bubble is annular, the film bubble will be squeezed into two layers of film after being squeezed by the herringbone plate).

[0003] Before the film is rolled up later, it is usually necessary to transfer the flat annular bubble film to a trimming device for cutting, so as to separate the two layers of film to form two films, which makes it easier to roll up the two layers of film separately later.

[0004] During the long-distance processing and transmission of films, the film often deviates to one side due to unstable equipment operation or changes in the external environment. When the deviated film enters the cutting equipment for cutting, it is easy to cause the cut film to have an irregular shape, affecting the film's winding regularity and quality, and affecting sales and normal use. At the same time, it is also easy to cause the film cutting area to be too large, resulting in material waste. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a four-station winding device with automatic film deviation correction and constant tension, which can solve the problem of film deviation during long-distance processing and transmission.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is as follows: a film automatic deflection correction constant tension four-station winding device is provided, comprising a frame and a control system, wherein the frame is provided with a deflection correction structure, a cutting structure and a winding structure from top to bottom, the deflection correction structure comprises a first traction roller, a deflection correction frame, a second traction roller, a deflection correction sensor, and a deflection correction adjustment cylinder, the deflection correction frame is composed of a bracket and two third traction rollers and a fourth traction roller on the same horizontal line, the bracket is a horizontally placed square bracket, a rotating shaft is provided at the center position below the bracket, the bracket is connected to the frame through the rotating shaft, a bracket hand is provided above the bracket and the third traction roller and the fourth traction roller are fixed by the bracket hand, the deflection correction adjustment cylinder is placed horizontally, one end of the deflection correction adjustment cylinder is fixedly connected to the frame, and the other end of the deflection correction adjustment cylinder is connected to any corner of the bracket, and the bracket rotates along the rotating shaft during the pushing process of the deflection correction adjustment cylinder.

[0007] Preferably, the first traction roller and the second traction roller are respectively arranged at the left and right ends of the frame and below the horizontal position of the correcting frame. The film passes through the first traction roller, the third traction roller, the fourth traction roller and the second traction roller in the correcting structure in sequence and then enters the cutting structure. The correcting sensor is arranged between the fourth traction roller and the second traction roller. The control system adjusts the telescopic stroke of the correcting adjustment cylinder through the signal of the correcting sensor.

[0008] Preferably, the cutting structure comprises a partition plate and a clamping roller from top to bottom, and a cutting knife is respectively provided on the left and right sides of the partition plate.

[0009] Preferably, the partition plate is provided with a plurality of cutting holes.

[0010] Preferably, the winding structure includes a left unwinding roller, a right unwinding roller, and a constant tension winding device. The constant tension winding device is provided with two left and right constant tension winding devices. The left and right two constant tension winding devices respectively process the film transmitted by the left unwinding roller and the right unwinding roller. The constant tension winding device includes a tension sensor, a fifth guide roller and a winding roller.

[0011] Preferably, the tension sensor is connected to a control system, and the drive motor of the winding roller is connected to the control system. The control system adjusts the drive motor speed of the winding roller through the sensing signal of the tension sensor to control the winding speed of the winding roller.

[0012] Preferably, the left and right constant tension winding devices are each provided with two winding rollers.

[0013] The advantages of the present invention are: (1) It can solve the problem of film deviation during long-distance processing and transmission. (2) The overall configuration occupies a small area, and the cut film has a neat shape. (3) The degree of automation is high, and the winding speed is automatically adjusted by the constant tension winding device to avoid being too tight or too loose. The left and right constant tension winding devices are each provided with two winding rollers, so that the winding rollers can be wound in turn without interrupting the previous cutting process during the replacement of the winding drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a film automatic deviation correction constant tension four-station winding device of the present invention;

[0015] Figure 2 It is a front schematic diagram of a deflection correction frame of a film automatic deflection correction constant tension four-station winding device of the present invention;

[0016] Figure 3 It is a schematic top view of a deflection correction frame of a film automatic deflection correction constant tension four-station winding device of the present invention;

[0017] Figure 4 It is a front schematic diagram of a partition plate of a four-station winding device for film automatic deviation correction and constant tension according to the present invention;

[0018] Figure 5 It is a side view schematic diagram of a partition plate of a four-station winding device for film automatic deviation correction and constant tension according to the present invention;

[0019] Description of reference numerals:

[0020] 1. Frame; 2. First traction roller; 3. Correction frame; 31. Support; 32. Third traction roller; 33. Fourth traction roller; 34. Rotation axis; 35. Support hand; 4. Second traction roller; 5. Correction sensor; 6. Correction adjustment cylinder; 7. Film; 8. Partition plate; 81. Cutter; 82. Cutting hole; 9. Clamping roller; 10. Left unfolding roller; 11. Right unfolding roller; 12. Tension sensor; 13. Fifth guide roller; 14. Winding roller. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0022] Embodiment 1:

[0023] As shown in the figure: a film automatic deflection correction constant tension four-station winding device includes a frame 1 and a control system. The frame 1 is provided with a deflection correction structure, a cutting structure and a winding structure from top to bottom. The deflection correction structure includes a first traction roller 2, a deflection correction frame 3, a second traction roller 4, a deflection correction sensor 5, and a deflection correction adjustment cylinder 6. The deflection correction frame 3 is composed of a bracket 31 and two third traction rollers 32 and a fourth traction roller 33 on the same horizontal line. The bracket 31 is a horizontally placed square frame. A rotating shaft 34 is arranged at the center position below the bracket 31. The bracket 31 is connected to the frame 1 through the rotating shaft 34. A bracket hand 35 is arranged above the bracket 31 and the third traction roller 32 and the fourth traction roller 33 are fixed by the bracket hand 35. The deflection correction adjustment cylinder 6 is placed horizontally, one end of the deflection correction adjustment cylinder 6 is fixedly connected to the frame 1, and the other end of the deflection correction adjustment cylinder 6 is connected to any corner of the bracket 31. The bracket 31 rotates along the rotating shaft 34 during the pushing process of the deflection correction adjustment cylinder 6.

[0024] The first traction roller 2 and the second traction roller 4 are respectively arranged at the left and right ends of the frame 1 and below the horizontal position of the correcting frame 3. The film 7 passes through the first traction roller 2, the third traction roller 32, the fourth traction roller 33, and the second traction roller 4 in the correcting structure in sequence and then enters the cutting structure. The correcting sensor 5 is arranged between the fourth traction roller 33 and the second traction roller 4. The control system adjusts the telescopic stroke of the correcting adjustment cylinder 6 through the signal of the correcting sensor 5.

[0025] The cutting structure includes a partition plate 8 and a clamping roller 9 from top to bottom. Cutters 81 are respectively provided on the left and right sides of the partition plate 8 ; the partition plate 8 is provided with a plurality of cutting holes 82 .

[0026] The winding structure includes a left unwinding roller 10, a right unwinding roller 11, and a constant tension winding device. The constant tension winding device is provided with two left and right constant tension winding devices, and the left and right two constant tension winding devices respectively process the film 7 transmitted by the left unwinding roller 10 and the right unwinding roller 11. The constant tension winding device includes a tension sensor 12, a fifth guide roller 13 and a winding roller 14; the tension sensor 12 is connected to the control system, and the drive motor of the winding roller 14 is connected to the control system. The control system adjusts the drive motor speed of the winding roller 14 through the sensing signal of the tension sensor 12 to control the winding speed of the winding roller 14; the left and right two constant tension winding devices are each provided with two winding rollers 14.

[0027] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A film automatic deviation correction constant tension four-station winding device, characterized in that: The invention comprises a frame and a control system, wherein the frame is provided with a deflection correction structure, a cutting structure and a winding structure from top to bottom, wherein the deflection correction structure comprises a first traction roller, a deflection correction frame, a second traction roller, a deflection correction sensor and a deflection correction adjustment cylinder, wherein the deflection correction frame is composed of a bracket and two third traction rollers and a fourth traction roller on the same horizontal line, wherein the bracket is a horizontally placed square frame, wherein a rotating shaft is provided at the center position below the bracket, wherein the bracket is connected to the frame through the rotating shaft, wherein a bracket hand is provided above the bracket and the third traction roller and the fourth traction roller are fixed through the bracket hand, wherein the deflection correction adjustment cylinder is placed horizontally, wherein one end of the deflection correction adjustment cylinder is fixedly connected to the frame, and the other end of the deflection correction adjustment cylinder is fixedly connected to the frame, and the other end of the deflection correction adjustment cylinder is fixedly connected to the frame. The first traction roller and the second traction roller are respectively arranged at the left and right ends of the frame and below the horizontal position of the deflection correction frame, and the film passes through the first traction roller, the third traction roller, the fourth traction roller and the second traction roller in the deflection correction structure in sequence and then enters the cutting structure, the deflection correction sensor is arranged between the fourth traction roller and the second traction roller, and the control system adjusts the telescopic stroke of the deflection correction adjustment cylinder through the signal of the deflection correction sensor; the cutting structure includes a partition plate and a clamping roller from top to bottom, and cutters are respectively arranged on the left and right sides of the partition plate; the partition plate is provided with a plurality of cutting holes.

2. The film automatic deviation correction constant tension four-station winding device according to claim 1 is characterized in that: The winding structure includes a left unwinding roller, a right unwinding roller, and a constant tension winding device. The constant tension winding device is provided with two left and right constant tension winding devices. The left and right two constant tension winding devices respectively process the film transmitted by the left unwinding roller and the right unwinding roller. The constant tension winding device includes a tension sensor, a fifth guide roller and a winding roller.

3. The film automatic deviation correction constant tension four-station winding device according to claim 2 is characterized in that: The tension sensor is connected to a control system, and the drive motor of the winding roller is connected to the control system. The control system adjusts the speed of the drive motor of the winding roller through the sensing signal of the tension sensor to control the winding speed of the winding roller.

4. The film automatic deviation correction constant tension four-station winding device according to claim 2 is characterized in that: The left and right constant tension winding devices are each provided with two winding rollers.

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