Winding device for PVC film cut-off machine

Abstract

The utility model discloses a winding device for a PVC (polyvinyl chloride) film cut-off machine, relates to the technical field of winding devices, and provides the following scheme aiming at the problems of poor clamping effect and low flexibility of some oval and square winding drums in the prior art: the winding device for the PVC film cut-off machine comprises a bottom plate, fixed plates are fixed on two sides of one end of the top of the bottom plate, and the fixed plates are fixed on two sides of the other end of the top of the bottom plate; and clamping mechanisms are arranged on the opposite sides of the two fixing plates correspondingly, a guiding mechanism is fixed to the other end of the top of the bottom plate, and each clamping mechanism comprises a connecting shell. One end of the winding drum is connected with the clamping mechanism in the direction of the servo motor, the two-way screw rod is rotated, the two movable blocks drive the two fixing rods to be far away from each other, the two fixing rods are connected with the inner wall of the winding drum, then the handle screw rod is rotated, the other clamping mechanism is inserted into the other end of the winding drum, and the winding drum is clamped. And the other end of the winding drum is clamped and supported by rotating the two-way screw rod.

Description

Technical Field

[0001] The utility model relates to the technical field of winding devices, in particular to a winding device for a PVC film cutting machine. Background Art

[0002] The main component of PVC is polyvinyl chloride, which is slightly yellow and translucent, shiny, better than polyethylene and polypropylene, but worse than polystyrene. Depending on the amount of additives used, it can be divided into soft and hard polyvinyl chloride. Soft products are soft and tough, and feel sticky. The hardness of hard products is higher than low-density polyethylene, but lower than polypropylene, and whitening will occur at the inflection point.

[0003] During the production and processing of PVC film, a winding device is needed to wind the PVC film, so a cutting machine is needed to cut the PVC film;

[0004] However, the existing winding devices for automatic PVC film cutting machines are mostly only capable of clamping multiple cylinders, and have the disadvantages of poor clamping effect and low flexibility for some oval and square winding cylinders. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a winding device for a PVC film cutting machine, which overcomes the deficiencies of the prior art and effectively solves the problems of poor clamping effect and low flexibility for some oval and square winding drums in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A winding device for a PVC film cutting machine comprises a base plate, fixed plates are fixed on both sides of one end of the top of the base plate, and clamping mechanisms are provided on opposite sides of the two fixed plates, a guiding mechanism is fixed to the other end of the top of the base plate, the clamping mechanism comprises a connecting shell, a bidirectional screw rod rotatably connected to the inner walls at both ends of the connecting shell, a movable block screwed to the two ends of the rod wall of the bidirectional screw rod, and a fixed rod fixed to the outer wall of one side of the movable block, and the guiding mechanism comprises a U-shaped frame, a first guide rod rotatably connected to the inner walls at both ends of the U-shaped frame, and a second guide rod provided above the first guide rod.

[0008] By connecting one end of the winding drum with the clamping mechanism in the direction of the servo motor and rotating the bidirectional lead screw, the two movable blocks drive the two fixed rods to move away from each other, so that the two fixed rods are respectively connected to the inner wall of the winding drum, and then the handle screw is rotated to insert the other clamping mechanism into the other end of the winding drum, and the other end of the winding drum is clamped and supported by rotating the bidirectional lead screw in the same way, and the PVC film is overlapped on the top of the first guide rod by lifting the second guide rod, and the connecting block is pressed down under the push of the spring rod, so that the second guide rod is close to the top of the first guide rod, so that the PVC film is transported between the first guide rod and the second guide rod.

[0009] Preferably, one of the fixing plates is threadedly connected with a handle screw, and one end of the handle screw is rotatably connected to the clamping mechanism.

[0010] By turning the handle screw, the connected clamping mechanism is moved toward the other clamping mechanism.

[0011] Preferably, the other fixed plate is rotatably connected to a rotating rod, and one end of the rotating rod is fixedly connected to the clamping mechanism.

[0012] The clamping mechanism is driven to rotate by rotating the rotating rod.

[0013] Preferably, the other end of the rotating rod is connected to a servo motor, and the servo motor is installed on the outer wall of the fixing plate.

[0014] The servo motor drives the rotating rod to rotate.

[0015] Preferably, an anti-skid sleeve is sleeved and fixed on the rod wall of the fixed rod, and an anti-skid thread is engraved on the outer wall of the anti-skid sleeve.

[0016] The inner wall of the winding drum is supported and clamped by moving the two fixing rods away from each other, and the friction between the winding drum and the anti-skid sleeve with anti-skid threads is increased.

[0017] Preferably, both ends of the second guide rod are rotatably connected to connecting blocks, and the top of the connecting blocks are fixed with spring rods, and the tops of both ends of the U-shaped frame are provided with sliding grooves, the connecting blocks form a sliding fit with the sliding grooves, and the spring rods form a plug-in fit with the sliding grooves.

[0018] The connection block is pushed downward by the spring rod, so that the second guide rod is closely attached to the top of the first guide rod.

[0019] The beneficial effects of the utility model are:

[0020] By connecting one end of the winding drum to the clamping mechanism in the direction of the servo motor and rotating the bidirectional lead screw, the two movable blocks drive the two fixed rods to move away from each other, so that the two fixed rods are respectively connected to the inner wall of the winding drum, and then the handle screw is rotated to insert the other clamping mechanism into the other end of the winding drum, and the bidirectional lead screw is also rotated to clamp and support the other end of the winding drum, which effectively solves the problems of poor clamping effect and low flexibility for some elliptical and square winding drums in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a winding device for a PVC film cutting machine proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a clamping mechanism of a winding device for a PVC film cutting machine proposed by the utility model;

[0023] Figure 3 The utility model is a schematic diagram of the guide mechanism structure of a winding device for a PVC film cutting machine.

[0024] In the figure: 1. bottom plate; 2. fixed plate; 3. handle screw; 4. rotating rod; 5. servo motor; 6. clamping mechanism; 7. guide mechanism; 8. connecting shell; 9. bidirectional screw rod; 10. movable block; 11. fixed rod; 12. anti-slip sleeve; 13. U-shaped frame; 14. first guide rod; 15. second guide rod; 16. connecting block; 17. spring rod. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example:

[0027] Reference Figure 1-3 A winding device for a PVC film cutting machine comprises a bottom plate 1, a fixing plate 2 is fixed on both sides of one end of the top of the bottom plate 1, a clamping mechanism 6 is arranged on the opposite sides of the two fixing plates 2, a guiding mechanism 7 is fixed on the other end of the top of the bottom plate 1, the clamping mechanism 6 comprises a connecting shell 8, a bidirectional screw rod 9 rotatably connected to the inner walls at both ends of the connecting shell 8, a movable block 10 screwed to both ends of the rod wall of the bidirectional screw rod 9, and a fixed rod 11 fixed to the outer wall of one side of the movable block 10, and the guiding mechanism 7 comprises a U-shaped frame 13, a first guide rod 14 rotatably connected to the inner walls at both ends of the U-shaped frame 13, and a second guide rod 15 arranged above the first guide rod 14;

[0028] One of the fixed plates 2 is screwed with a handle screw 3, one end of which is rotatably connected to a clamping mechanism 6. By rotating the handle screw 3, the connected clamping mechanism 6 is moved toward another clamping mechanism 6. The other fixed plate 2 is rotatably connected with a rotating rod 4, one end of which is fixedly connected to the clamping mechanism 6. The clamping mechanism 6 is driven to rotate by rotating the rotating rod 4. The other end of the rotating rod 4 is connected to a servo motor 5, which is mounted on the outer wall of the fixed plate 2. The servo motor 5 drives the rotating rod 4 to rotate.

[0029] The rod wall of the fixed rod 11 is sleeved and fixed with an anti-slip sleeve 12, and the outer wall of the anti-slip sleeve 12 is engraved with anti-slip threads. The two fixed rods 11 are moved away from each other to support and clamp the inner wall of the winding drum, and the friction between the winding drum and the anti-slip sleeve 12 with anti-slip threads is increased. Both ends of the second guide rod 15 are rotatably connected with connecting blocks 16, and the top of the connecting blocks 16 is fixed with spring rods 17. The top of the two ends of the U-shaped frame 13 is provided with sliding grooves, and the connecting block 16 forms a sliding fit with the sliding groove, and the spring rod 17 forms a plug-in fit with the sliding groove. Under the push of the spring rod 17, the connecting block 16 is pressed down, so that the second guide rod 15 is tightly attached to the top of the first guide rod 14.

[0030] Working principle:

[0031] During operation, one end of the winding drum is connected to the clamping mechanism 6 in the direction of the servo motor 5, and the bidirectional lead screw 9 is rotated. The two movable blocks 10 drive the two fixed rods 11 to move away from each other, so that the two fixed rods 11 are respectively connected to the inner wall of the winding drum, and then the handle screw 3 is rotated to insert the other clamping mechanism 6 into the other end of the winding drum, and the other end of the winding drum is clamped and supported by rotating the bidirectional lead screw 9 in the same way. By lifting the second guide rod 15, the PVC film is overlapped on the top of the first guide rod 14, and under the push of the spring rod 17, the connecting block 16 is pressed down, so that the second guide rod 15 is close to the top of the first guide rod 14, so that the PVC film is transported between the first guide rod 14 and the second guide rod 15.

[0032] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A winding device for a PVC film cutting machine, comprising a bottom plate (1), characterized in that: Fixed plates (2) are fixed on both sides of one end of the top of the base plate (1), and clamping mechanisms (6) are provided on opposite sides of the two fixed plates (2). A guiding mechanism (7) is fixed on the other end of the top of the base plate (1). The clamping mechanism (6) comprises a connecting shell (8), a bidirectional screw rod (9) rotatably connected to the inner walls at both ends of the connecting shell (8), a movable block (10) screwed to the two ends of the rod wall of the bidirectional screw rod (9), and a fixed rod (11) fixed to the outer wall of one side of the movable block (10). The guiding mechanism (7) comprises a U-shaped frame (13), a first guiding rod (14) rotatably connected to the inner walls at both ends of the U-shaped frame (13), and a second guiding rod (15) arranged above the first guiding rod (14).

2. A winding device for a PVC film cutting machine according to claim 1, characterized in that: A handle screw rod (3) is screwed onto one of the fixing plates (2), and one end of the handle screw rod (3) is rotatably connected to a clamping mechanism (6).

3. A winding device for a PVC film cutting machine according to claim 1, characterized in that: The other fixed plate (2) is rotatably connected to a rotating rod (4), and one end of the rotating rod (4) is fixedly connected to a clamping mechanism (6).

4. A winding device for a PVC film cutting machine according to claim 3, characterized in that: The other end of the rotating rod (4) is connected to a servo motor (5), and the servo motor (5) is mounted on the outer wall of the fixing plate (2).

5. The winding device for a PVC film cutting machine according to claim 1, characterized in that: The rod wall of the fixed rod (11) is sleeved and fixed with an anti-skid sleeve (12), and the outer wall of the anti-skid sleeve (12) is engraved with anti-skid threads.

6. A winding device for a PVC film cutting machine according to claim 1, characterized in that: Both ends of the second guide rod (15) are rotatably connected to a connecting block (16), and a spring rod (17) is fixed to the top of the connecting block (16). Both ends of the U-shaped frame (13) are provided with a sliding groove at the top of the outer package, the connecting block (16) and the sliding groove form a sliding fit, and the spring rod (17) and the sliding groove form a plug-in fit.

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