A film supply device for a straw packaging machine

Abstract

The utility model relates to packing equipment technical field provides a film supply device for straw packing machine, including box and setting on the film changing mechanism, film mechanism, traction mechanism of box, the film changing mechanism includes packing film support, film changing mechanism shaft, belt pulley, triangle film roll, belt, screw rod, spring, packing film support sets up on the box, packing film support sets up film changing mechanism shaft on, sets up belt pulley and two triangle film rolls on film changing mechanism shaft, and the belt pulley is cooperatively established belt, one end of belt is connected with screw rod, and the other end is connected with spring, the film mechanism includes floating connecting plate and sets up first film roll wheel, second film roll wheel on floating connecting plate, the floating connecting plate swing sets up in the lower part of packing film support, the utility model discloses can continuously steadily provide packing film, prevents the failure of film supply caused by excessive rotation of packing film.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a film supply device for a straw packaging machine. Background Technology

[0002] A straw packaging machine is a specialized piece of equipment that automatically packages beverage straws into bags. With the continuous growth of global demand for straws, straw packaging machines are also developing rapidly.

[0003] The straw packaging machine takes unpackaged straws and packaging film as input and outputs finished straws. The machine includes a straw feeding device, a film feeding device, a straw pushing device, a heat sealing device, and a cutting device. The film feeding device is the main equipment of the straw packaging machine, providing packaging film to the heat sealing device so that the heat sealing device can seal the straws in the packaging film.

[0004] Existing straw packaging machines use a single-axis direct-load design for their film supply devices. During film feeding, the output of the film often increases, leading to film slack and excessive rotation, causing supply malfunctions. Furthermore, insufficient friction during film feeding causes slippage, further disrupting the feeding process. Additionally, existing film supply devices are inconvenient to adjust. Utility Model Content

[0005] This invention primarily addresses the technical problems of existing film supply devices for straw packaging machines, where the film roll is directly placed on a shaft. During the film supply process, film slack occurs, leading to excessive rotation of the film and subsequent supply failure. The invention proposes a film supply device for straw packaging machines that can continuously and stably supply packaging film and prevent supply failure caused by excessive rotation of the packaging film.

[0006] This utility model provides a film supply device for a straw packaging machine, including: a box and a film changing mechanism, a film stretching mechanism and a traction mechanism disposed on the box;

[0007] The film changing mechanism includes: a packaging film support, a film changing mechanism shaft, a pulley, a triangular film feeding roller, a belt, a screw, and a first spring;

[0008] The packaging film support is mounted on the box body; the packaging film support is equipped with a film changing mechanism shaft; the film changing mechanism shaft is equipped with a pulley and two triangular film feeding rollers;

[0009] A belt is fitted onto the pulley; one end of the belt is connected to a screw, and the other end is connected to a spring.

[0010] The film stretching mechanism includes: a floating connecting plate and a first film stretching roller and a second film stretching roller disposed on the floating connecting plate;

[0011] The floating connecting plate is movably disposed at the lower part of the packaging film support; one end of the floating connecting plate is connected to the screw, and the other end is connected to the first spring;

[0012] The traction mechanism is located below the stretching mechanism; the traction mechanism includes: a first guide roller, a second guide roller, a third guide roller, and a fourth guide roller rotatably mounted on the housing.

[0013] Preferably, it also includes a clamping mechanism disposed on one side of the housing.

[0014] Preferably, the clamping mechanism includes: a clamping handle, a connecting rod, a mounting plate, a lever, an L-shaped connector, a fisheye bearing, a triangular connecting fastener, and a power roller;

[0015] The mounting plate is fixed to the side wall of the box body. The mounting plate is hinged to one end of the lever, and the other end of the lever is hinged to the clamping handle. The lever is also hinged to the connecting rod.

[0016] The lower part of the mounting plate is provided with a fisheye bearing; the connecting rod passes through the fisheye bearing, and the lower part of the connecting rod is connected to the L-shaped connector;

[0017] The L-shaped connector is fixedly connected to the triangular connector, and the triangular connector is connected to the housing through a fixed drill sleeve; a power roller is provided on the triangular connector.

[0018] Preferably, it also includes a film pressing mechanism disposed on the side of the housing away from the clamping mechanism.

[0019] Preferably, the film pressing mechanism includes: an adjusting plate, a knob, a nylon wheel, a locking nut, and a film pressing mechanism connecting rod;

[0020] The adjusting plate is fixed to the box body;

[0021] The connecting rod of the pressing mechanism is fixedly connected to the adjusting plate by a locking nut;

[0022] A nylon wheel is provided on the connecting rod of the film pressing mechanism, and a knob is provided at the end of the connecting rod of the film pressing mechanism.

[0023] Preferably, the packaging film holder is mounted on the box body via a packaging film holder support base and a packaging film holder mounting base;

[0024] The packaging film support bracket is fixed to the box body;

[0025] The packaging film bracket mounting base is slidably disposed on the packaging film bracket support base, and the packaging film bracket is mounted on the packaging film bracket mounting base.

[0026] Preferably, the belt is connected to the screw and the first spring respectively via belt clips.

[0027] Preferably, the fourth guide roller is mounted on the housing via a roller fixing bracket;

[0028] A second spring and a push rod are provided at the top of the roller fixing frame; the second spring and push rod are located on both sides of the top of the fourth guide roller;

[0029] The bottom of the roller fixing frame is provided with a sliding groove, and the bottom of the fourth guide roller is located in the sliding groove.

[0030] Preferably, the housing is provided with a transfer wheel; the transfer wheel is located above and outside the fourth guide roller.

[0031] Preferably, a sensor bracket is provided on the housing;

[0032] A photoelectric sensor is mounted on the sensor bracket.

[0033] The film supply device for a straw packaging machine provided by this utility model has the following advantages compared with the prior art:

[0034] 1. The film changing mechanism of this utility model can easily replace the film roll; and it is convenient to adjust the front and rear positions of the film changing mechanism to achieve accurate film position adjustment. It can adapt to the position adjustment needs of various packaging films and is compatible with packaging films of different specifications and materials.

[0035] 2. In the film stretching mechanism of this utility model, the floating connecting plate can swing. The two ends of the floating connecting plate are restrained by screws, belts and first springs to prevent the packaging film from rotating excessively and causing film supply failure.

[0036] 3. The traction mechanism of this utility model is equipped with multiple guide rollers to ensure good contact and friction with the packaging film being pulled, which can effectively pull without damaging the material. The tightness of the packaging film can also be easily adjusted by adjusting the position of the fourth guide roller.

[0037] 4. The film-pressing mechanism of this utility model is located in the output direction of the adapter wheel, and is used to provide downward pressure on the output packaging film. By adjusting the installation angle between the adjusting plate and the box, the position of the nylon wheel can be adjusted, thereby adjusting the tightness of the output packaging film.

[0038] 5. The clamping mechanism of this invention allows the power roller to move closer to or further away from the second guide roller, thereby adjusting the tightness of the packaging film. The power roller provides friction, preventing slippage during film feeding and improving the operational stability of the device.

[0039] 6. This invention ensures a stable supply of packaging film, preventing packaging interruptions and impacting production efficiency due to supply issues. Furthermore, the invention features multiple adjustable structures, allowing for convenient adjustment of the packaging film's tightness. Attached Figure Description

[0040] Figure 1 This is a front view of the film supply device for a straw packaging machine provided by this utility model;

[0041] Figure 2 This utility model provides a three-dimensional film supply device for a straw packaging machine. Figure 1 ;

[0042] Figure 3 This utility model provides a three-dimensional film supply device for a straw packaging machine. Figure 2 ;

[0043] Figure 4 This is a top view of the film supply device for a straw packaging machine provided by this utility model;

[0044] Figure 5 This is a schematic diagram of the roller fixing frame provided by this utility model.

[0045] Reference numerals: 1. Housing; 2. Adjusting plate; 3. Adapter wheel; 4. Sensor bracket; 5. Roller fixing bracket; 6. Screw; 7. Packaging film bracket; 8. Belt clamp; 9. Triangular film feeding roller; 10. Fixing nut; 11. Belt; 12. First spring; 13. Butterfly handle; 14. Packaging film bracket support; 15. Packaging film bracket mounting base; 16. Fixing drill sleeve; 17. Triangular connecting fastener; 18. Power roller; 19. First guide roller ; 20. Second guide roller; 21. Third guide roller; 22. Fourth guide roller; 23. Knob; 24. Nylon wheel; 25. Locking nut; 26. First stretching roller; 27. Second stretching roller; 28. Floating connecting plate; 29. ​​Pressing handle; 30. Connecting rod; 31. Film pressing mechanism connecting rod; 32. Pulley; 33. Mounting plate; 34. Lever; 35. L-shaped connector; 36. Fisheye bearing; 37. Second spring; 38. Push rod. Detailed Implementation

[0046] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0047] Example 1

[0048] like Figure 1-4 As shown in the figure, the present invention provides a film supply device for a straw packaging machine, comprising: a housing 1 and a film changing mechanism, a film stretching mechanism, and a traction mechanism disposed on the housing 1.

[0049] The film changing mechanism includes: a packaging film support 7, a film changing mechanism shaft, a pulley 32, a triangular film feeding roller 9, a belt 11, a screw 6, and a first spring 12. The packaging film support 7 is mounted on the housing 1. The packaging film support 7 is mounted on the housing 1 via a packaging film support base 15 and a packaging film support mounting base 14; specifically, the packaging film support base 15 is fixed to the housing 1; the packaging film support mounting base 14 is slidably mounted on the packaging film support base 15, and the packaging film support 7 is mounted on the packaging film support mounting base 14. A lead screw is provided at the top of the packaging film support base 15, and a butterfly handle 13 is provided at the end of the lead screw. A slider is fitted on the lead screw, and the slider is fixed to the bottom of the packaging film support mounting base 14. Rotating the butterfly handle 13 can drive the slider and the packaging film support mounting base 14 to move back and forth through the lead screw, which facilitates the adjustment of the back and forth position of the film changing mechanism, so as to achieve accurate adjustment of the film position. It can adapt to the position adjustment needs of various packaging films and is compatible with packaging films of different specifications and materials.

[0050] The packaging film support 7 is equipped with a film changing mechanism shaft; the film changing mechanism shaft is equipped with a pulley 32 and two triangular film feeding rollers 9. A film roll is placed on the film changing mechanism shaft, specifically between the two triangular film feeding rollers 9. During film changing, the fixing nut 10 and the front triangular film feeding roller 9 are removed, the film roll is installed, the front triangular film feeding roller 9 is then installed, and the fixing nut 10 is tightened. This invention facilitates film changing. A belt 11 is fitted onto the pulley 32; one end of the belt 11 is connected to the screw 6, and the other end is connected to the first spring 12. Specifically, the belt 11 is connected to the screw 6 and the belt 11 is connected to the first spring 12 via belt clips 8.

[0051] The film stretching mechanism includes a floating connecting plate 28 and a first film stretching roller 26 and a second film stretching roller 27 disposed on the floating connecting plate 28. The floating connecting plate 28 is movably disposed at the lower part of the packaging film support 7. One end of the floating connecting plate 28 is connected to a screw 6, and the other end is connected to a first spring 12. The floating connecting plate 28 can swing, and both ends of the floating connecting plate 28 are restrained by the screw 6, the belt 11, and the first spring 12 to prevent the packaging film from rotating excessively and causing film supply failure.

[0052] The traction mechanism is located below the film stretching mechanism; the traction mechanism includes: a first guide roller 19, a second guide roller 20, a third guide roller 21, and a fourth guide roller 22 rotatably mounted on the housing 1. A transfer wheel 3 is provided on the housing 1; the transfer wheel 3 is located above and to the outside of the fourth guide roller 22. The packaging film is guided out through the transfer wheel 3 and input to the next heat-sealing station.

[0053] The packaging film is drawn out from the film roll and passes sequentially through the first stretching roller 26, the second stretching roller 27, the first guide roller 19, the second guide roller 20, the third guide roller 21, and the fourth guide roller 22, finally exiting from the transfer wheel 3 to the next workstation. The traction mechanism is equipped with multiple guide rollers to ensure good contact and friction with the packaged film being pulled, achieving effective traction without damaging the material.

[0054] The fourth guide roller 22 is mounted on the housing 1 via the roller fixing frame 5; as shown Figure 5 As shown, a second spring 37 and a push rod 38 are provided at the top of the roller fixing frame 5; the second spring 37 and the push rod 38 are located on both sides of the top of the fourth guide roller 22; a sliding groove is provided at the bottom of the roller fixing frame 5, and the bottom of the fourth guide roller 22 is located in the sliding groove. By rotating the push rod 38, the fourth guide roller 22 and the second spring 37 can be squeezed, the position of the fourth guide roller 22 can be adjusted, and the tightness of the packaging film can also be easily adjusted.

[0055] The film supply device for a straw packaging machine of this utility model further includes: a film pressing mechanism disposed on the side of the housing 1 away from the clamping mechanism.

[0056] The film pressing mechanism includes: an adjusting plate 2, a knob 23, a nylon wheel 24, a locking nut 25, and a film pressing mechanism connecting rod 31; the adjusting plate 2 is fixed on the housing 1; the film pressing mechanism connecting rod 31 is fixedly connected to the adjusting plate 2 by the locking nut 25; the nylon wheel 24 is provided on the film pressing mechanism connecting rod 31, and the knob 23 is provided at the end of the film pressing mechanism connecting rod 31.

[0057] The film pressing mechanism is located in the output direction of the adapter wheel 3 and is used to provide downward pressure on the output packaging film. By adjusting the installation angle between the adjusting plate 2 and the housing 1, the position of the nylon wheel 24 can be adjusted, thereby adjusting the tightness of the output packaging film.

[0058] Example 2

[0059] like Figure 1-3 As shown, based on Embodiment 1, the film supply device for the straw packaging machine provided in this embodiment further includes: a clamping mechanism disposed on one side of the box body 1.

[0060] The clamping mechanism is located below the film changing mechanism. The clamping mechanism includes: a clamping handle 29, a connecting rod 30, a mounting plate 33, a lever 34, an L-shaped connector 35, a fisheye bearing 36, a triangular connecting fastener 17, and a power roller 18.

[0061] The mounting plate 33 is fixed to the side wall of the housing 1. The mounting plate 33 is hinged to one end of the lever 34, and the other end of the lever 34 is hinged to the clamping handle 29. The lever 34 is also hinged to the connecting rod 30. A fisheye bearing 36 is provided at the lower part of the mounting plate 33. The connecting rod 30 passes through the fisheye bearing 36, and the lower part of the connecting rod 30 is connected to the L-shaped connector 35. The L-shaped connector 35 is fixedly connected to the triangular connecting fastener 17. The triangular connecting fastener 17 is connected to the housing 1 through the fixed drill sleeve 16. A power roller 18 is provided on the triangular connecting fastener 17.

[0062] When adjusting the clamping mechanism, manually adjusting the clamping handle 29 moves the L-shaped connector 35 via the lever 34 and connecting rod 30, which in turn causes the triangular connecting fixing member 17 to swing slightly around the fixed drill sleeve 16, making the power roller 18 move closer to or further away from the second guide roller 20, thereby adjusting the tightness of the packaging film. The power roller 18 provides friction, which can prevent slippage during film feeding and improve the operational stability of the device.

[0063] A sensor bracket 4 is installed on the housing 1; a photoelectric sensor is installed on the sensor bracket 4, which is used to detect the sealing mark so that the sealing and cutting at the next station can be accurate.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A film supply device for a straw packaging machine, characterized in that, include: The housing (1) and the film changing mechanism, film stretching mechanism and traction mechanism installed on the housing (1); The film changing mechanism includes: a packaging film support (7), a film changing mechanism shaft, a pulley (32), a triangular film feeding roller (9), a belt (11), a screw (6), and a first spring (12). The packaging film support (7) is mounted on the box body (1); the packaging film support (7) is mounted on the film changing mechanism shaft; the film changing mechanism shaft is mounted on the pulley (32) and two triangular film feeding rollers (9). A belt (11) is fitted onto the pulley (32); one end of the belt (11) is connected to the screw (6), and the other end is connected to the first spring (12); The film stretching mechanism includes: a floating connecting plate (28) and a first film stretching roller (26) and a second film stretching roller (27) disposed on the floating connecting plate (28). The floating connecting plate (28) is movably disposed at the lower part of the packaging film support (7); one end of the floating connecting plate (28) is connected to the screw (6), and the other end is connected to the first spring (12); The traction mechanism is located below the stretching mechanism; the traction mechanism includes: a first guide roller (19), a second guide roller (20), a third guide roller (21), and a fourth guide roller (22) rotatably mounted on the housing (1).

2. The film supply device for a straw packaging machine according to claim 1, characterized in that, Also includes: A clamping mechanism is installed on one side of the housing (1).

3. The film supply device for a straw packaging machine according to claim 2, characterized in that, The clamping mechanism includes: a clamping handle (29), a connecting rod (30), a mounting plate (33), a lever (34), an L-shaped connector (35), a fisheye bearing (36), a triangular connecting fastener (17), and a power roller (18). The mounting plate (33) is fixed to the side wall of the box (1). The mounting plate (33) is hinged to one end of the lever (34). The other end of the lever (34) is hinged to the clamping handle (29). The lever (34) is also hinged to the connecting rod (30). The lower part of the mounting plate (33) is provided with a fisheye bearing (36); the connecting rod (30) passes through the fisheye bearing (36), and the lower part of the connecting rod (30) is connected to the L-shaped connector (35); The L-shaped connector (35) is fixedly connected to the triangular connector (17), and the triangular connector (17) is connected to the housing (1) through the fixed drill sleeve (16); a power roller (18) is provided on the triangular connector (17).

4. The film supply device for a straw packaging machine according to claim 1, characterized in that, Also includes: A pressure film mechanism is set on the side of the housing (1) away from the clamping mechanism.

5. The film supply device for a straw packaging machine according to claim 4, characterized in that, The film pressing mechanism includes: an adjusting plate (2), a knob (23), a nylon wheel (24), a locking nut (25), and a film pressing mechanism connecting rod (31). The adjusting plate (2) is fixed on the box body (1); The connecting rod (31) of the pressing mechanism is fixedly connected to the adjusting plate (2) by a locking nut (25); A nylon wheel (24) is provided on the connecting rod (31) of the pressing mechanism, and a knob (23) is provided at the end of the connecting rod (31).

6. The film supply device for a straw packaging machine according to claim 1, characterized in that, The packaging film bracket (7) is mounted on the box body (1) via the packaging film bracket support (15) and the packaging film bracket mounting base (14); The packaging film support base (15) is fixed on the box body (1); The packaging film bracket mounting base (14) is slidably disposed on the packaging film bracket support base (15), and the packaging film bracket (7) is mounted on the packaging film bracket mounting base (14).

7. The film supply device for a straw packaging machine according to claim 1, characterized in that, The belt (11) and the screw (6) and the belt (11) and the first spring (12) are respectively connected by belt clips (8).

8. The film supply device for a straw packaging machine according to claim 1, characterized in that, The fourth guide roller (22) is mounted on the housing (1) via a roller fixing frame (5); A second spring (37) and a push rod (38) are provided on the top of the roller fixing frame (5); the second spring (37) and the push rod (38) are located on both sides of the top of the fourth guide roller (22); The bottom of the roller fixing frame (5) is provided with a sliding groove, and the bottom of the fourth guide roller (22) is located in the sliding groove.

9. The film supply device for a straw packaging machine according to claim 1, characterized in that, The housing (1) is provided with a transfer wheel (3); the transfer wheel (3) is located above and outside the fourth guide roller (22).

10. The film supply device for a straw packaging machine according to claim 1, characterized in that, A sensor bracket (4) is installed on the housing (1); A photoelectric sensor is mounted on the sensor bracket (4).

Images