Packaging wrapping film stretching device

Abstract

The utility model relates to the technical field of wrapping film stretching, in particular to a packaging wrapping film stretching device which is characterized in that a supporting plate is fixedly connected to the upper left end of a base, a rotating shaft block is rotatably connected to the inner side of the supporting plate, a sliding frame is slidably connected to the inner side of the rotating shaft block, and a cross clamping block is fixedly connected to the inner end of the sliding frame; the left side of the upper end of the base is fixedly connected with a conveying frame, the inner side of the conveying frame is rotationally connected with a conveying clamping roller, a worm can drive a worm gear to rotate through rotation of a second motor, and therefore the conveying clamping roller can automatically and stably convey a packaging winding film; the winding-out roller can be prevented from excessively loosening under the action of a pawl and an inner ratchet ring, meanwhile, an adjusting screw rod can rotate by rotating a rotating disc, then a cross-shaped clamping block can move towards the outer side, the winding-out roller can be replaced conveniently, and then the stability of the output end of the packaging winding film can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a packaging wrapping film stretching device, belonging to the technical field of wrapping film stretching. Background Art

[0002] Stretch film, also known as stretch film and heat shrink film, is produced by DOA as a plasticizer and self-adhesive PVC stretch film. Due to environmental issues, high cost, poor stretchability and other reasons, the stretch film uses the film's super strong winding force and retraction to compactly and securely bundle the product into a unit. Even in an unfavorable environment, the product will not be loose or separated, and there are no sharp edges or stickiness to avoid damage.

[0003] The existing announcement number is CN220866661U, which is a packaging wrap film stretching device. This device realizes that one end of the packaging wrap film body wound on the outer surface of the packaging wrap film winding roller is attached to the outer side of the stretching roller and fixed to the outer surface of the winding roller through the arrangement of a placement component, a storage mechanism and a tensioning adjustment mechanism. The winding roller winds the stretched wrap film as the rotating motor rotates, and then drives the stretching roller shaft to move upward by controlling and starting the electric lifting rod, thereby completing the stretching operation of the packaging wrap film body. The height of the stretching roller shaft can be adjusted according to the needs of the wrap film packaging object, thereby changing the stretching ratio of the packaging wrap film body to meet the packaging needs. At the same time, a limiting ring plate is provided to prevent the packaging wrap film body from running off when being stretched and can be adjusted according to the wrap film packaging object. The width can be adjusted by sliding, and before stretching, the sliding rod is pushed to drive the fixing semi-ring to clamp on the outer surface of the packaging stretch film winding roller, which plays a role of stretching limitation and is convenient for disassembling the packaging stretch film winding roller after stretching. However, when this device is in use, although the packaging stretch film winding roller set can be quickly clamped, it does not have a limiting and packaging stretch film limiting conveying mechanism, which makes it easy for the packaging stretch film winding roller to loosen when the packaging stretch film is stretched, and thus it is easy to find it difficult to achieve stable stretching of the packaging stretch film; and no stretching structure is provided in the process of stretching the packaging stretch film, which makes it easy for wrinkles to appear in the process of stretching the packaging stretch film, which not only affects the winding effect of the packaging stretch film after stretching, but also affects the packaging effect of the object. Utility Model Content

[0004] The utility model aims to provide a packaging wrapping film stretching device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A packaging wrap film stretching device comprises a base, a support plate and a winding frame, the upper left end of the base is fixedly connected to the support plate, the inner side of the support plate is rotatably connected to a rotating shaft block, the inner side of the rotating shaft block is slidably connected to a sliding frame, the inner end of the sliding frame is fixedly connected to a cross clamping block, the outer side of the cross clamping block is slidably connected to a discharging roller, the upper left end of the base is fixedly connected to a conveying frame, the inner side of the conveying frame is rotatably connected to a conveying clamping roller, the upper right end of the base is fixedly connected to a stretching processing frame, the inner lower side of the stretching processing frame is rotatably connected to a supporting roller, the upper end of the supporting roller is provided with a leveling roller, and the inner side of the leveling roller is provided with a pressing roller.

[0007] Furthermore, a winding frame is fixedly connected to the upper right end of the base, a first motor is fixedly connected to the lower front end of the winding frame, and a winding roller is fixedly connected to the rear end of the output shaft of the first motor.

[0008] Furthermore, an adjusting screw is spirally connected at the middle position of the rotating shaft block, the adjusting screw is rotationally connected to the sliding frame, and a rotating disk is fixedly connected to the outer end of the adjusting screw.

[0009] Furthermore, a pawl is rotatably connected to the upper left end of the rotating shaft block, and a torsion spring is covered on the surface of the rotating shaft between the rotating shaft block and the pawl. The outer end torsion arms of the torsion spring are respectively fixedly connected to the rotating shaft block and the pawl, and an inner ratchet ring is slidably connected to the outer side of the pawl, and the inner ratchet ring is fixedly connected to the support plate.

[0010] Furthermore, a fixed box is fixedly connected to the lower side of the front end of the conveying frame, a second motor is fixedly connected to the upper right end of the fixed box, a worm is fixedly connected to the left end of the output shaft of the second motor, a worm is meshingly connected to the lower end of the worm, and the worm wheel is fixedly connected to the conveying clamping roller.

[0011] Furthermore, a hydraulic press is fixedly connected to the middle position of the upper end of the stretching processing frame, a hydraulic rod is sealedly connected to the lower end of the hydraulic press, a lifting frame is fixedly connected to the lower end of the hydraulic rod, and the lifting frame is rotationally connected to the top pressure roller.

[0012] Furthermore, the front end of the stretching processing frame is rotatably connected to a pulley block, and the pulley block is fixedly connected to a leveling roller, and there are two leveling rollers.

[0013] The beneficial effects of the utility model are:

[0014] The utility model discloses a method for improving the packaging film output end by the present invention. The utility model discloses a method for improving the packaging film output end by the present invention. The utility model discloses a method for improving the packaging film output end by the present invention. The utility model discloses a method for improving the packaging film output end by the present invention. The utility model discloses a method for improving the packaging film output end by the present invention. The utility model discloses a method for improving the packaging film output end by the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of a packaging wrapping film stretching device of the utility model;

[0017] Figure 2 The utility model is a packaging wrapping film stretching device Figure 1 Schematic diagram of the installation structure at A;

[0018] Figure 3 It is a right sectional view of the installation structure of the rotating shaft block, the sliding frame and the adjusting screw of a packaging wrapping film stretching device of the utility model;

[0019] Figure 4 This is a cross-sectional view of the installation structure of a fixed box of a packaging wrapping film stretching device of the utility model;

[0020] Figure 5 This is a cross-sectional view of the installation structure of a stretching processing frame of a packaging wrapping film stretching device of the utility model;

[0021] Figure 6 This is a right view of the installation structure of the leveling roller of a packaging wrapping film stretching device of the utility model;

[0022] Numbers in the figure: 1. base; 2. support plate; 3. rotating shaft block; 4. sliding frame; 5. cross block; 6. unwinding roller; 7. conveying frame; 8. conveying clamping roller; 9. stretching processing frame; 10. supporting roller; 11. leveling roller; 12. top pressure roller; 13. winding frame; 14. first motor; 15. winding roller; 16. adjusting screw; 17. turntable; 18. pawl; 19. torsion spring; 20. inner ratchet ring; 21. fixed box; 22. second motor; 23. worm; 24. worm wheel; 25. hydraulic press; 26. hydraulic rod; 27. lifting frame; 28. pulley block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1 Please refer to Figure 1-Figure 6 , the utility model provides a technical solution:

[0025] A packaging wrapping film stretching device comprises a base 1, a support plate 2 and a winding frame 13, wherein the upper left end of the base 1 is fixedly connected with the support plate 2, the inner side of the support plate 2 is rotatably connected with a rotating shaft block 3, the inner side of the rotating shaft block 3 is slidably connected with a sliding frame 4, the inner end of the sliding frame 4 is fixedly connected with a cross clamping block 5, the outer side of the cross clamping block 5 is slidably connected with a discharging roller 6, the upper left end of the base 1 is fixedly connected with a conveying frame 7, the inner side of the conveying frame 7 is rotatably connected with a conveying clamping roller 8, an adjusting screw 16 is spirally connected at the middle position of the rotating shaft block 3, the adjusting screw 16 is rotatably connected to the sliding frame 4, the outer end of the adjusting screw 16 is fixedly connected with a turntable 17, the upper left end of the rotating shaft block 3 is rotatably connected with a pawl 18, the surface of the rotating shaft between the rotating shaft block 3 and the pawl 18 is covered with a torsion spring 19, the outer end torsion arms of the torsion spring 19 are respectively fixedly connected with the rotating shaft block 3 and the pawl 18, and the outer side of the pawl 18 is slidably connected with an inner ratchet ring 20 The inner ratchet ring 20 is fixedly connected to the support plate 2, and a fixed box 21 is fixedly connected to the lower side of the front end of the conveying frame 7. The upper right end of the fixed box 21 is fixedly connected to the second motor 22. The left end of the output shaft of the second motor 22 is fixedly connected to a worm 23, and the lower end of the worm 23 is meshed with a worm gear 24. The worm gear 24 is fixedly connected to the conveying clamping roller 8. By setting the rotation of the second motor 22, the worm 23 can drive the worm gear 24 to rotate, so that the conveying clamping roller 8 can automatically and stably convey the packaging winding film, and the unwinding roller 6 can be rotated by pulling the conveying clamping roller 8. At the same time, the ratchet 18 and the inner ratchet ring 20 can prevent the unwinding roller 6 from excessively loosening. At the same time, the adjusting screw 16 can be rotated by rotating the turntable 17, so that the cross block 5 can move outward, so as to facilitate the replacement of the unwinding roller 6, thereby effectively improving the stability of the output end of the packaging winding film.

[0026] Example 2 Please refer to Figure 1 , Figure 5 and Figure 6The difference between this embodiment and embodiment 1 is that: a stretching processing frame 9 is fixedly connected to the right side of the upper end of the base 1, and a support roller 10 is rotatably connected to the lower side of the inner part of the stretching processing frame 9. A leveling roller 11 is provided at the upper end of the support roller 10, and a top pressure roller 12 is provided on the inner side of the leveling roller 11. A winding frame 13 is fixedly connected to the right upper end of the base 1, and a first motor 14 is fixedly connected to the lower side of the front end of the winding frame 13, and a winding roller 15 is fixedly connected to the rear end of the output shaft of the first motor 14. A hydraulic press 25 is fixedly connected to the middle position of the upper end of the stretching processing frame 9, and a hydraulic rod 26 is sealed at the lower end of the hydraulic press 25. A lifting frame 27 is fixedly connected to the lower end of the hydraulic rod 26, and a lifting frame 27 is fixedly connected to the lifting frame 27 and the top pressure roller 12. The front end of the stretching processing frame 9 is rotatably connected with a pulley block 28, and the pulley block 28 is fixedly connected to the leveling roller 11. There are two leveling rollers 11. The rotation of the first motor 14 enables the winding roller 15 to rotate, and the hydraulic press 25 enables the hydraulic rod 26 to drive the lifting frame 27 to move up and down, so that the top pressure roller 12 can stretch the packaging film to different degrees, and the supporting roller 10 can support the packaging film. The packaging film can be stretched by rotating the leveling roller 11 to avoid wrinkles in the packaging film during the stretching process, so as to ensure the winding effect of the packaging film after stretching and the packaging effect of the object.

[0027] Working principle of the utility model: when the device is in use, the rotation of the second motor 22 is set to make the worm 23 drive the worm wheel 24 to rotate, so that the conveying clamping roller 8 can automatically and stably convey the packaging wrapping film, and the unwinding roller 6 can be rotated by pulling the conveying clamping roller 8, and at the same time, the ratchet 18 and the inner ratchet ring 20 can prevent the unwinding roller 6 from being too loose, and at the same time, the adjusting screw 16 can be rotated by rotating the turntable 17, so that the cross block 5 can be moved outward, so as to facilitate the replacement of the unwinding roller 6, so that The stability of the output end of the packaging stretch film is effectively improved, and the rotation of the first motor 14 is used to rotate the winding roller 15, and the hydraulic press 25 is used to enable the hydraulic rod 26 to drive the lifting frame 27 to move up and down, so that the top pressure roller 12 can stretch the packaging stretch film to different degrees, and the supporting roller 10 can support the packaging stretch film, and the packaging stretch film can be stretched by rotating the flattening roller 11 to avoid the appearance of wrinkles in the packaging stretch film during the stretching process, so as to ensure the winding effect of the packaging stretch film after stretching and the packaging effect of the object.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging wrap film stretching device, comprising a base (1), a support plate (2) and a winding frame (13), characterized in that: The upper left end of the base (1) is fixedly connected to a support plate (2), the inner side of the support plate (2) is rotatably connected to a rotating shaft block (3), the inner side of the rotating shaft block (3) is slidably connected to a sliding frame (4), the inner end of the sliding frame (4) is fixedly connected to a cross clamping block (5), the outer side of the cross clamping block (5) is slidably connected to a discharging roller (6), the upper left end of the base (1) is fixedly connected to a conveying frame (7), the inner side of the conveying frame (7) is rotatably connected to a conveying clamping roller (8), the upper right end of the base (1) is fixedly connected to a stretching processing frame (9), the inner lower side of the stretching processing frame (9) is rotatably connected to a supporting roller (10), the upper end of the supporting roller (10) is provided with a leveling roller (11), the inner side of the leveling roller (11) is provided with a top pressure roller (12).

2. A packaging wrap film stretching device according to claim 1, characterized in that: A winding frame (13) is fixedly connected to the upper right end of the base (1), a first motor (14) is fixedly connected to the lower front end of the winding frame (13), and a winding roller (15) is fixedly connected to the rear end of the output shaft of the first motor (14).

3. The packaging wrapping film stretching device according to claim 1, characterized in that: An adjusting screw (16) is spirally connected at the middle position of the rotating shaft block (3), the adjusting screw (16) is rotationally connected to the sliding frame (4), and a rotating disk (17) is fixedly connected to the outer end of the adjusting screw (16).

4. The packaging wrapping film stretching device according to claim 1, characterized in that: The upper left end of the rotating shaft block (3) is rotatably connected with a ratchet (18); the surface of the rotating shaft between the rotating shaft block (3) and the ratchet (18) is covered with a torsion spring (19); the outer end torsion arms of the torsion spring (19) are respectively fixedly connected to the rotating shaft block (3) and the ratchet (18); the outer side of the ratchet (18) is slidably connected with an inner ratchet ring (20); and the inner ratchet ring (20) is fixedly connected to the support plate (2).

5. The packaging wrapping film stretching device according to claim 1, characterized in that: A fixed box (21) is fixedly connected to the lower front end of the conveying frame (7); a second motor (22) is fixedly connected to the upper right end of the fixed box (21); a worm (23) is fixedly connected to the left end of the output shaft of the second motor (22); a worm wheel (24) is meshingly connected to the lower end of the worm wheel (23); and the worm wheel (24) is fixedly connected to the conveying clamping roller (8).

6. The packaging wrapping film stretching device according to claim 1, characterized in that: A hydraulic press (25) is fixedly connected to the middle position of the upper end of the stretching processing frame (9), a hydraulic rod (26) is sealed at the lower end of the hydraulic press (25), a lifting frame (27) is fixedly connected to the lower end of the hydraulic rod (26), and the lifting frame (27) is rotatably connected to the top pressure roller (12).

7. The packaging wrapping film stretching device according to claim 1, characterized in that: The front end of the stretching processing frame (9) is rotatably connected to a pulley block (28), and the pulley block (28) is fixedly connected to a leveling roller (11), and there are two leveling rollers (11).

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