Film winding and tensioning device of automatic packaging machine

Abstract

The utility model relates to the field of packaging machine film tensioning devices, in particular to an automatic packaging machine film winding tensioning device which comprises a working table, a film tensioning device is fixedly installed on the top of the working table and comprises supporting plates, the supporting plates are fixedly connected to the two sides of the working table, through holes are formed in the two sides of each supporting plate, and the supporting plates are fixedly connected to the working table. The thin film tensioning device is used for downwards extruding a thin film so as to achieve the effects of tensioning and buffering the thin film, a threaded rod is rotationally connected into the through hole, the outer wall of the threaded rod is sleeved with a sliding block in a threaded mode, the sliding block is slidably connected into the through hole, a lower pressing plate is fixedly connected to the side wall of the sliding block, and a plurality of sliding rods penetrate through the top of the lower pressing plate in a sliding mode. Compared with the prior art, the film tensioning device has the advantages that the film tensioning effect can be achieved, the structure is simple, the manufacturing cost is reduced, the tensioning force is more stable, meanwhile, the situation that the film is damaged due to too large downward pressing and extruding force is avoided, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to packaging machine film tensioner technical field especially relates to a kind of automatic packaging machine film winding tensioner. BACKGROUND

[0002] With the rapid development of modern industrial production, automatic packaging machine has become an important equipment on production line, and is widely used in food, medicine, chemical industry and many other industries. Among them, film winding tensioner as one of the core components of automatic packaging machine, its performance directly affects the quality and efficiency of packaging, so film needs to use tensioner when producing.

[0003] Chinese patent discloses: a film tensioner for film production, patent application number: 202221343870.5, the patent "including base and third fixed frame;The upper surface of the base is respectively fixedly installed with first fixed frame and second fixed frame, the inner side of the second fixed frame is provided with electric drum, the electric drum is connected with film winding, the middle part of the inner wall of the first fixed frame bottom end is fixedly installed with electric telescopic rod. The utility model discloses through electric telescopic rod can push the push plate to move upwards in first fixed frame, further push the transmission roller in the inner side of third fixed frame to move upwards and tension film, through electric drum can roll up the film after tensioning, through pressure sensor can detect the tension degree of film".

[0004] Although the device can automatically control electric drum to stop film winding operation through controller, and control electric telescopic rod to work and push transmission roller to move upwards at the same time, thereby automatically tensioning film, the degree of automation is high, but the film tensioner adopts electric push rod drive, although automation is realized to a certain extent, but there are problems such as complex structure, high maintenance cost. In addition, although electric telescopic rod usually has certain load capacity, if it exceeds its load range, it may cause telescopic rod damage or performance decline, so that unstable tension, film breakage and other phenomena often occur during operation, which seriously affects packaging effect. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a kind of automatic packaging machine film winding tensioner to solve the problems such as unstable tension, film breakage and other phenomena, which seriously affect packaging effect and complex structure, high maintenance cost and so on.

[0006] The utility model provides an automatic packaging machine film winding tensioner, including the work table, the top fixed mounting of work table has film tensioner, the film tensioner includes the support plate, the support plate fixedly connected at the both sides of work table, the both sides of support plate are opened the through hole, the film tensioner is used for the downward extrusion to the film to reach the effect of tension and buffer film, the inside rotation of through -hole is connected with the threaded rod, the outer wall of threaded rod is equipped with the sliding block of screw thread, the sliding block slidingly connects in the through -hole, the lateral wall of sliding block is fixedly connected with the down pressure plate, the top of down pressure plate penetrates the sliding of a plurality of slide rods, the outer wall of a plurality of slide rods is all equipped with the extension spring, the bottom fixedly connected of slide rod has the moving plate, the both ends of extension spring are fixedly connected on down pressure plate and moving plate, the bottom rotation of moving plate is connected with the tensioning roller, the outer wall of tensioning roller and film mutually fits.

[0007] Preferably, the top of the threaded rod is fixedly connected with a pulley, and the outer wall of the pulley is sleeved with a transmission belt.

[0008] Preferably, one of the threaded rods penetrates the inner wall of the support plate at the bottom and is fixedly connected with a first bevel gear, the outer wall of the second bevel gear is engaged with the outer wall of the first bevel gear.

[0009] Preferably, the top of the workbench is fixedly connected with a fixed plate on one side close to the support plate, the number of the fixed plate is two, the top of the two fixed plates is provided with a convenient disassembly groove, a plurality of rotating wheels are rotatably connected in the convenient disassembly groove, a rotating column is placed in the convenient disassembly groove, the outer wall of the rotating column is engaged with the outer wall of the rotating wheel, and the outer wall of the rotating column is fixedly connected with a winding roller.

[0010] Preferably, one end of the rotating column is fixedly connected with a first gear, the side wall of the fixed plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a second gear, the second gear is rotatably connected on one side of the fixed plate, the outer wall of the first gear is engaged with the outer wall of the second gear and is on the same vertical line.

[0011] Preferably, support rollers are rotatably connected on both sides of the moving plate between the two support plates.

[0012] Preferably, the winding roller and the support roller are on the same horizontal plane.

[0013] Preferably, the outer wall of the tensioning roller and the support roller is made of flexible material.

[0014] Preferably, the easy-to-remove groove is in the shape of a "U".

[0015] Preferably, the outer wall of the rotating column and the inner wall of the easy-to-remove groove are matched.

[0016] The utility model discloses the beneficial effect has: through the top of the supporting roller and the bottom of the tensioning roller of one end of film, then the other end is wound on the winding roller, rotates the turntable again, and the turnplate drives the rotation of the rotating rod, and then the rotating rod drives the rotation of the second bevel gear, and the second bevel gear drives the rotation of the threaded rod through the meshing of the first bevel gear, when the threaded rod rotates left, the transmission belt on the top drives the synchronous rotation of the threaded rod on the other side, then the sliding block will move and descend on the outer wall of the threaded rod, when the sliding block descends, the lower pressing plate will ascend or descend horizontally, at this moment, the lower pressing plate will drive the tensioning roller to the top of film and exert the pressure, and the tensioning roller will extrude the side of the moving plate, then the tensioning roller will drive the sliding rod to move upwards and extrude the extension spring on the outer wall of the sliding rod, can reach the tensioning effect to the film, simple structure, reduced manufacturing and maintenance cost, and the tensioning force is more stable, and the buffer effect of the extension spring ensures that the film can keep a certain elasticity when being tensioned, prevents the excessive stretching and tearing of the film, and the structure is simple and compact, convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the three-dimensional structure schematic diagram of the film tensioning device of the utility model;

[0020] Figure 3 It is the easy-to-remove groove and the rotating wheel and the rotating column structure schematic diagram of the utility model;

[0021] Figure 4 It is the film tensioning structure schematic diagram of the utility model.

[0022] Marked as in the drawing:

[0023] 1, workbench; 2, film tensioning device; 3, support plate; 4, through hole; 5, threaded rod; 6, sliding block; 7, lower pressing plate; 8, sliding rod; 9, extension spring; 10, moving plate; 11, tensioning roller; 12, pulley; 13, transmission belt; 14, first bevel gear; 15, rotating rod; 16, rotating disc; 17, second bevel gear; 18, fixed plate; 19, easy-to-disassemble groove; 20, rotating wheel; 21, rotating column; 22, winding roller; 23, first gear; 24, servo motor; 25, second gear; 26, supporting roller. DETAILED DESCRIPTION

[0024] To make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with specific examples.

[0025] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as the common meaning understood by those skilled in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] As Figure 1 , Figure 4As shown, an automatic packaging machine film winding tension device, including the workbench 1, the top of the workbench 1 is fixedly installed with film tension device 2, the film tension device 2 includes support plate 3, the support plate 3 is fixedly connected on both sides of the workbench 1, both sides of the support plate 3 is provided with through hole 4, the film tension device 2 is used for downward extrusion to the film, so as to achieve the effect of tension and buffer film, the inside of the through hole 4 is rotatably connected with the threaded rod 5, the outer wall of the threaded rod 5 is threadedly connected with the sliding block 6, the sliding block 6 is slidably connected in the through hole 4, the side wall of the sliding block 6 is fixedly connected with the lower plate 7, the top of the lower plate 7 penetrates through a plurality of slide rods 8, the outer wall of the plurality of slide rods 8 is sleeved with the expansion spring 9, the bottom of the slide rod 8 is fixedly connected with the moving plate 1, the both ends of the expansion spring 9 are fixedly connected with the lower plate 7 and the moving plate 10 respectively, the bottom of the moving plate 10 is rotatably connected with the tension roller 11, the outer wall of the tension roller 11 is matched with the film, the top of the threaded rod 5 is fixedly connected with the pulley 12, the outer wall of the pulley 12 is sleeved with the transmission belt 13, one of the threaded rod 5 bottom penetrates through the inner wall of the support plate 3 and is fixedly connected with the first bevel gear 14, the outer wall of the support plate 3 is rotatably connected with the rotating rod 15, the other end of the rotating rod 15 is fixedly connected with the rotating disc 16, the other end of the rotating rod 15 is fixedly connected with the second bevel gear 17, the outer wall of the second bevel gear 17 is meshed with the outer wall of the first bevel gear 14.

[0027] When the film tension is needed, first, one end of the film is threaded through the top of the support roller 26 and the bottom of the tension roller 11, then the other end is wound around the winding roller 22, and then the rotating disc 16 is rotated, the rotating disc 16 drives the rotating rod 15 to rotate, then the rotating rod 15 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the threaded rod 5 to rotate through meshing with the first bevel gear 14, when the threaded rod 5 rotates to the left, the other side of the threaded rod 5 is driven to rotate synchronously through the top transmission belt 13, then the sliding block 6 moves and descends on the outer wall of the threaded rod 5, when the sliding block 6 descends, it drives the lower plate 7 to rise or descend horizontally, at this time, the lower plate 7 drives the tension roller 11 to apply pressure to the top of the film, the tension roller 11 extrudes one side of the moving plate 10, then the tension roller 11 drives the slide rod 8 to move upwards and extrude the expansion spring 9 on the outer wall of the slide rod 8, so as to achieve the effect of tension, at the same time, the buffer effect of the expansion spring 9 ensures that the film can maintain a certain elasticity when being tensioned, preventing the film from being stretched and torn excessively, the structure is simple and convenient to use.

[0028] Further, with reference to the accompanying drawings Figure 3As shown, a fixed plate 18 is fixedly connected to the top of the workbench 1 near the support plate 3. There are two fixed plates 18, and the top of the two fixed plates 18 is provided with a disassembly groove 19. Multiple rotating wheels 20 are rotatably connected inside the disassembly groove 19. A rotating column 21 is placed inside the disassembly groove 19. The outer wall of the rotating column 21 is in contact with the outer wall of the rotating wheel 20. The outer wall of the rotating column 21 is adapted to the inner wall of the disassembly groove 19. A winding roller 22 is fixedly connected to the outer wall of the rotating column 21. A first gear 23 is fixedly connected to one end of the rotating column 21. A servo motor 24 is fixedly connected to the side wall of the fixed plate 18. A second gear 25 is fixedly connected to the output end of the servo motor 24. The second gear 25 is rotatably connected to one side of the fixed plate 18. The outer walls of the first gear 23 and the second gear 25 mesh with each other and are on the same vertical line.

[0029] When it is necessary to remove the winding roller 22, simply take the winding roller 22 directly. The winding roller 22 then drives the rotating column 21 to leave the disassembly slot 19. After replacing it with a new winding roller 22, engage the first gear 23 at one end of the rotating column 21 with the rotating rod 15. Then, start the servo motor 24 through an external power source to drive the second gear 25 to rotate. The second gear 25 drives the first gear 23 to rotate. Then, the first gear 23 drives the rotating column 21 to rotate. The outer wall of the rotating column 21 drives the rotating wheel 20 to rotate. Then, the rotating column 21 drives the winding roller 22 to rotate, thus completing the winding and coiling work. There is no need to disassemble multiple parts. Just take the winding roller 22 directly and replace it with a new one. This design greatly saves replacement time, improves work efficiency, saves time and effort, and is convenient to use.

[0030] Further, see attached document. Figure 3 As shown, the easy-removal groove 19 is U-shaped. The shape of the easy-removal groove 19 facilitates the removal of the winding roller 22, saving time and effort and making it convenient to use.

[0031] Further, see attached document. Figure 1 As shown, support rollers 26 are rotatably connected to the inside of the support plate 3 near the two sides of the moving plate 10. The support rollers 26 on both sides of the moving plate 10 are on the same horizontal plane. The winding roller 22 and the support rollers 26 are both on the same horizontal plane. The support rollers 26 support the film and work with the tensioning roller 11 to tension the film.

[0032] Further, see attached document. Figure 1 As shown, the outer walls of the tension roller 11 and the support roller 26 are both made of flexible material. The flexible material protects the outer wall of the film and prevents scratches on the outer wall of the film.

[0033] Working principle: when the film needs to be tensioned, first, one end of the film is passed through the top of the supporting roller 26 and the bottom of the tensioning roller 11, then the other end is wound on the winding roller 22, then the rotating disc 16 is rotated, the rotating disc 16 drives the rotating rod 15 to rotate, then the rotating rod 15 drives the second bevel gear 17 to rotate, the second bevel gear 17 drives the threaded rod 5 to rotate through meshing with the first bevel gear 14, when the threaded rod 5 rotates to the left, the other side threaded rod 5 is driven to rotate synchronously through the top transmission belt 13, then the sliding block 6 moves and descends on the outer wall of the threaded rod 5, when the sliding block 6 descends, the lower pressing plate 7 is driven to ascend or descend horizontally, at this time, the lower pressing plate 7 drives the tensioning roller 11 to apply pressure to the top of the film, the tensioning roller 11 extrudes one side of the moving plate 10, then the tensioning roller 11 drives the sliding rod 8 to move upwards and extrude the extension spring 9 on the outer wall of the sliding rod 8, so that the tensioning effect is achieved, and the buffer effect of the extension spring 9 ensures that the film can maintain a certain elasticity when being tensioned, preventing the film from being excessively stretched and torn, and the structure is simple and convenient to use.

[0034] It should be understood by those of ordinary skill in the art that the above discussion of any embodiment is merely exemplary and is not intended to suggest the scope of the present application (including claims) is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0035] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications, equivalents, improvements and the like are intended to be encompassed by the present application.

Claims

1. An automatic packaging machine film winding tensioning device comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly provided with a film tensioning device (2), the film tensioning device (2) comprises a support plate (3), the support plate (3) is fixedly connected to the two sides of the workbench (1), the two sides of the support plate (3) are provided with through holes (4), the film tensioning device (2) is used for downward extruding the film, thereby achieving the effects of tensioning and buffering the film, the inside of the through hole (4) is rotatably connected with a threaded rod (5), the outer wall of the threaded rod (5) is threadedly provided with a sliding block (6), the sliding block (6) is slidably connected in the through hole (4), the side wall of the sliding block (6) is fixedly connected with a pressing plate (7), the top of the pressing plate (7) penetrates a plurality of sliding rods (8), the outer wall of the sliding rod (8) is provided with a telescopic spring (9), the bottom of the sliding rod (8) is fixedly connected with a moving plate (10), the two ends of the telescopic spring (9) are fixedly connected to the pressing plate (7) and the moving plate (10) respectively, the bottom of the moving plate (10) is rotatably connected with a tensioning roller (11), the outer wall of the tensioning roller (11) is in close contact with the film.

2. A film wrapping tensioning device for an automatic packaging machine according to claim 1, characterized in that, The top of the threaded rod (5) is fixedly connected with a pulley (12), the outer wall of the pulley (12) is provided with a transmission belt (13).

3. An automatic packaging machine film winding tensioning device according to claim 1, characterized in that, One of the threaded rods (5) penetrates the inner wall of the support plate (3) and is fixedly connected with a first bevel gear (14), the outer wall of the first bevel gear (14) is rotatably connected with a rotating rod (15), the other end of the rotating rod (15) is fixedly connected with a rotating disc (16), the other end of the rotating rod (15) is fixedly connected with a second bevel gear (17), the outer wall of the second bevel gear (17) is in mesh with the outer wall of the first bevel gear (14).

4. An automatic packaging machine film winding tensioning device according to claim 1, characterized in that, The top of the workbench (1) is fixedly connected with a fixed plate (18) near one side of the support plate (3), the number of the fixed plate (18) is two, the top of the fixed plate (18) is provided with a convenient dismounting groove (19), the inside of the convenient dismounting groove (19) is rotatably connected with a plurality of rotating wheels (20), the inside of the convenient dismounting groove (19) is provided with a rotating column (21), the outer wall of the rotating column (21) is in close contact with the outer wall of the rotating wheel (20), the outer wall of the rotating column (21) is fixedly connected with a winding roller (22).

5. An automatic packaging machine film winding tensioning device according to claim 4, characterized in that, One end of the rotating column (21) is fixedly connected with a first gear (23), the side wall of the fixed plate (18) is fixedly connected with a servo motor (24), the output end of the servo motor (24) is fixedly connected with a second gear (25), the second gear (25) is rotatably connected to one side of the fixed plate (18), the outer wall of the first gear (23) is in mesh with the outer wall of the second gear (25) and is on the same vertical line.

6. An automatic packaging machine film winding tensioning device according to claim 1, characterized in that, The two sides of the moving plate (10) are rotatably connected with support rollers (26) between the two support plates (3), the support rollers (26) on the two sides of the moving plate (10) are on the same horizontal plane.

7. An automatic packaging machine film winding tensioning device according to claim 4, characterized in that, The winding roller (22) and the support roller (26) are on the same horizontal plane.

8. An automatic packaging machine film winding tensioning device according to claim 1, characterized in that, The outer wall of the tension roller (11) and the support roller (26) is made of flexible material.

9. An automatic packaging machine film winding tensioning device according to claim 4, characterized in that, The shape of the convenient dismounting groove (19) is "U".

10. An automatic packaging machine film winding tensioning device according to claim 4, characterized in that, The outer wall of the rotating column (21) and the inner wall of the convenient dismounting groove (19) are matched.

Images