Film clamping mechanism of wrapping film packer

Abstract

The utility model relates to a film clamping mechanism, belongs to the technical field of packaging machines, in particular to a film clamping mechanism of a wrapping film packaging machine, which comprises a fixed frame, two rotating columns are rotatably connected onto the fixed frame, and the two rotating frames are fixedly connected onto the two rotating columns respectively. According to the winding film clamping device, the motor, the threaded rod, the threaded plate, the rack, the fixing frame, the gear, the rotating column and the rotating frame are matched, the motor drives the threaded rod to rotate, the threaded plate moves, the rack is driven to move upwards, the gear rotates, the rotating column and the rotating frame are driven to rotate, and therefore a winding film is clamped; through cooperation of the sliding groove, the through groove, the sliding frame, the scale marks, the threaded hole and the fastening bolt, when the length of the sliding frame needs to be adjusted, the fastening bolt is rotated, so that the fastening bolt moves towards the outer side and does not abut against the sliding groove any more, the sliding frame can be pushed to move in the sliding groove, and the length of the sliding frame is adjusted so as to adapt to winding films with different widths.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing machine technical field, concretely is a kind of film clamping mechanism of winding film packing machine. BACKGROUND

[0002] The film clamping mechanism of winding film packing machine is the key component in packaging equipment, mainly used for stabilizing clamping winding film, to prevent it from falling off or tearing in the packing process.

[0003] The Chinese patent with publication number CN216443858U discloses a film clamping mechanism of winding film packing machine and film breaking device, the film clamping mechanism includes a base, the upper end of the base is provided with a swing first clamping plate and a second clamping plate, the upper end of the first clamping plate and the second clamping plate is a free end, the lower end is hinged to the base through a rotating shaft, the rotating shaft is fixed with a swing lever, the base is provided with a telescopic cylinder hinged with the swing lever, a film clamping gap is formed between the first clamping plate and the second clamping plate, the same side of the first clamping plate and the second clamping plate is provided with a C-shaped film clamping frame, the opening end of the C-shaped film clamping frame faces the film clamping gap, and the side ends of the two C-shaped film clamping frames are alternately arranged. This patent increases the clamping area of the winding film, ensures the stability of clamping the winding film, and avoids the winding film from separating from the clamping gap and affecting the subsequent film breaking and film pressing.

[0004] In the above technical solution, the length of the first clamping plate and the second clamping plate in the device is fixed and cannot be adjusted, so when a wider winding film is encountered, the first clamping plate and the second clamping plate will not be able to clamp the winding film completely, which can easily cause the winding film to tear during the stretching process.

[0005] Based on this, the utility model provides a kind of film clamping mechanism of winding film packing machine. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides a kind of film clamping mechanism of winding film packing machine, the length of sliding frame can be adjusted by fastening bolt, to be suitable for winding film of different width, the contact area of sliding frame and winding film is increased by protruding strip, so that the clamping of the device on winding film is more stable, and the practicability of the device is improved.

[0007] The technical solution for achieving the purpose of the utility model is as follows: a kind of film clamping mechanism of winding film packing machine, including fixed frame, the fixed frame is rotatably connected with two rotating columns, further including;

[0008] Rotating frame, two rotating frames are respectively fixedly connected to two rotating columns, two rotating frames are respectively provided with two sliding grooves and two through grooves, two rotating frames are respectively slidably connected with two sliding frames, two sliding frames are respectively provided with two threaded holes, and two threaded holes are respectively screwed with two fastening bolts.

[0009] Preferably, a base is fixedly connected to the fixed frame, a groove is formed in the base, and a motor is fixedly connected in the groove.

[0010] Preferably, a threaded rod is fixedly connected to an output shaft of the motor, a threaded plate is threadedly connected to the threaded rod, and the threaded plate is slidingly connected in the groove.

[0011] Preferably, four racks are fixedly connected to the threaded plate, four gears are fixedly connected to the two rotating columns, and the gears are engaged with the racks.

[0012] Preferably, four anti-skid pads are fixedly connected to the two fixed frames respectively, and two scale lines are formed in the two sliding frames respectively.

[0013] Preferably, a plurality of protruding strips are fixedly connected to the two sliding frames respectively.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] Firstly, in the present utility model, the motor drives the threaded rod to rotate, the threaded plate moves, the racks move upwards, the gears rotate, the rotating columns and the rotating frame rotate, and the winding film is clamped.

[0016] Secondly, in the present utility model, when the length of the sliding frame needs to be adjusted, the fastening bolt is rotated to move outward, no longer abutting against the sliding groove, the sliding frame is pushed to move in the sliding groove, the length of the sliding frame is adjusted, and the winding film with different widths is adapted. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present utility model will be further explained in combination with the drawings and embodiments:

[0018] Figure 1 is a perspective structural schematic view of the present utility model;

[0019] Figure 2 is a front view cross-sectional structural cross-sectional view of the present utility model;

[0020] Figure 3 is a right view cross-sectional structural cross-sectional view of the present utility model;

[0021] Figure 4 is an exploded structural schematic view of the rotating frame and the sliding frame in the present utility model.

[0022] MARKS OF THE DRAWINGS:

[0023] 1. Base; 2. Groove; 3. Motor; 4. Threaded rod; 5. Threaded plate; 6. Rack; 7. Fixing frame; 8. Gear; 9. Rotating column; 10. Rotating frame; 11. Slide groove; 12. Through groove; 13. Anti-slip pad; 14. Sliding frame; 15. Scale line; 16. Threaded hole; 17. Fastening bolt; 18. Raised strip. Detailed Implementation

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model provides an improved film clamping mechanism for a stretch wrapping machine. The technical solution of this utility model is as follows:

[0026] like Figures 1-4 As shown, a film clamping mechanism of a stretch wrapping machine includes a fixed frame 7, the cross-section of the fixed frame 7 is U-shaped, two rotating columns 9 are rotatably connected to the fixed frame 7, and also includes;

[0027] Two rotating frames 10 are fixedly connected to two rotating columns 9. Two sliding grooves 11 and two through grooves 12 are respectively opened on the two rotating frames 10. Two sliding frames 14 are slidably connected to the two rotating frames 10. Two threaded holes 16 are opened on the two sliding frames 14. Two fastening bolts 17 are threaded into the two threaded holes 16. When it is necessary to adjust the length of the sliding frame 14, the fastening bolts 17 are rotated. Since the fastening bolts 17 are threaded into the threaded holes 16, the fastening bolts 17 move outward with the rotation and no longer block the sliding grooves 11. At this time, the sliding frame 14 can be pushed to move in the sliding grooves 11 to adjust the length of the sliding frame 14 to adapt to different widths of wrapping film.

[0028] Furthermore, such as Figures 1-3 As shown, a base 1 is fixedly connected to the fixed frame 7. A groove 2 is provided in the base 1. The cross section of the groove 2 is "+". A motor 3 is fixed to the bottom of the groove 2 by bolts.

[0029] Furthermore, such as Figure 2 and Figure 3 As shown, a threaded rod 4 is fixed to the output shaft of motor 3 via a coupling. A threaded plate 5 is threadedly connected to the threaded rod 4. The cross-section of the threaded plate 5 is U-shaped, and the threaded plate 5 is slidably connected in the groove 2.

[0030] Furthermore, such as Figure 1 andFigure 3 As shown, four racks 6 are fixedly connected to the threaded plate 5, and four gears 8 are fixedly connected to the two rotating columns 9. The gears 8 mesh with the racks 6. The motor 3 drives the threaded rod 4 to rotate, which causes the threaded plate 5 to move, which causes the racks 6 to move upward, which causes the gears 8 to rotate, which in turn causes the rotating columns 9 and the rotating frame 10 to rotate, thereby clamping the stretch film.

[0031] Furthermore, four anti-slip pads 13 are fixedly connected to the two fixed frames 7 respectively, and two scale lines 15 are opened on the two sliding frames 14 respectively. The extension length of the sliding frame 14 can be observed through the scale lines 15, which makes it easy to adjust the length of the sliding frame 14.

[0032] Furthermore, such as Figures 2-4 As shown, multiple protruding strips 18 are fixedly connected to the two sliding frames 14 respectively. The protruding strips 18 are distributed in a linear array on the sliding frames 14. The two rows of protruding strips 18 on the two sliding frames 14 are staggered to increase the contact area between the sliding frames 14 and the wrapping film, making the device clamp the wrapping film more stably and improving the practicality of the device.

[0033] The specific working method is as follows: Start the motor 3, and its output shaft drives the threaded rod 4 to rotate. Since the threaded plate 5 is threadedly connected to the threaded rod 4, the threaded plate 5 moves with the rotation of the threaded rod 4, causing the threaded plate 5 to move downward. The rack 6 moves downward accordingly. Since the gear 8 meshes with the rack 6, the gear 8 moves with the rotation of the rack 6, causing the rotating column 9 to rotate, so that the two rotating frames 10 rotate outward and form an angle between the two rotating frames 10. At this time, one end of the stretch film can be placed between the two rotating frames 10. Then start the motor 3 in reverse, driving the threaded plate 5 to move upward, so that the gear 8 rotates, causing the rotating frames 10 to rotate inward. The sliding frame 14 and the protruding strip 18 are used to clamp the stretch film. When it is necessary to adjust the length of the sliding frame 14, rotate the fastening bolt 17. Since the fastening bolt 17 is threadedly connected to the threaded hole 16, the fastening bolt 17 moves outward with the rotation and no longer presses against the slide groove 11. At this time, the sliding frame 14 can be pushed to move in the slide groove 11 to adjust the length of the sliding frame 14 to adapt to stretch films of different widths.

[0034] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A film clamping mechanism for a stretch wrapping machine, comprising a fixed frame (7), characterized in that: The fixed frame (7) is rotatably connected to two rotating columns (9), and also includes; Rotating frame (10), two rotating frames (10) are fixedly connected to two rotating columns (9) respectively. Two sliding grooves (11) and two through grooves (12) are respectively opened on the two rotating frames (10). Two sliding frames (14) are slidably connected on the two rotating frames (10). Two threaded holes (16) are respectively opened on the two sliding frames (14). Two fastening bolts (17) are threaded into the two threaded holes (16).

2. The film clamping mechanism of a stretch wrapping machine according to claim 1, characterized in that: A base (1) is fixedly connected to the fixed frame (7), and a groove (2) is provided in the base (1). A motor (3) is fixedly connected in the groove (2).

3. The film clamping mechanism of a stretch wrapping machine according to claim 2, characterized in that: A threaded rod (4) is fixedly connected to the output shaft of the motor (3), and a threaded plate (5) is threadedly connected to the threaded rod (4). The threaded plate (5) is slidably connected in the groove (2).

4. The film clamping mechanism of a stretch wrapping machine according to claim 3, characterized in that: Four racks (6) are fixedly connected to the threaded plate (5), and four gears (8) are fixedly connected to the two rotating columns (9). The gears (8) mesh with the racks (6).

5. The film clamping mechanism of a stretch wrapping machine according to claim 1, characterized in that: Four anti-slip pads (13) are fixedly connected to the two fixed frames (7) respectively, and two scale lines (15) are opened on the two sliding frames (14) respectively.

6. The film clamping mechanism of a stretch wrapping machine according to claim 5, characterized in that: Multiple protruding strips (18) are fixedly connected to the two sliding frames (14).

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