Film feeding device of winding machine
By introducing a combination of a swing rod, a swing arm, an analog switch, and a proximity switch into the film feeding device of the wrapping machine, the film feeding speed can be flexibly adjusted, solving the problem that the existing technology cannot adapt to different shapes of wrapped objects and improving packaging efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-27
AI Technical Summary
The existing wrapping machine's film feeding device cannot be flexibly adjusted according to the actual situation of the object being wrapped, resulting in inconvenience in use.
A device comprising a film feeding device body, a swing rod, a swing arm, an analog switch, and a proximity switch was designed. By detecting the rotation angle and position of the swing arm, the film feeding speed can be adjusted to achieve flexible control of the film feeding speed.
The position and speed of the film feeding device can be adjusted according to the needs of the site to ensure that the film is evenly wrapped on the surface of the material, thereby improving packaging efficiency and adaptability.
Smart Images
Figure CN224045527U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to winding machine technical field, especially a kind of film feeding device of winding machine. BACKGROUND
[0002] Stretch film winding machine, referred to as winding machine body, is distinguished from other winding machines, and is also called film winding machine by some people, in addition to pallet packing machine, pallet wrapping machine and other different names. It is a kind of packaging machine that appears with the increasing requirement of people on logistics efficiency, and reduces labor and saves packaging cost to realize saving loading and unloading. It has gradually become a kind of packaging machine necessary for large enterprises, especially export enterprises.
[0003] In the packaging process, the distance of the outline of the object to be wound from the center will generally differ greatly, and the shape of its surface will be uneven, and there will be great differences in some parts. In the prior art, the torsion spring drives the cam to rotate, and the swing rod can only rotate in one direction in actual use, which cannot be adjusted according to the actual installation situation, and is inconvenient to use. The prior art can be improved. SUMMARY
[0004] The utility model discloses a kind of film feeding devices of winding machine for the above existing situation, including film feeding device body and swing rod that is movably arranged in the film feeding device one side and adjusts the film speed, the swing rod is arranged on the mounting rod on film feeding device and can rotate with the film around the mounting rod, swing arm is arranged in film feeding device and is fixedly arranged on the mounting rod, the swing arm deflects with the rotation of mounting rod, detection device is arranged in film feeding device for detecting the swing arm rotation angle and adjusting film speed.
[0005] As preferred, the detection device includes swing arm arranged on mounting rod and analog switch for detecting the swing arm rotation angle and proximity switch for detecting swing arm position, the film feeding device is provided with elastic member for rotating swing arm to the direction of proximity switch and resetting, and the elastic member is located between the swing arm and swing rod.
[0006] As preferred, the film feeding device comprises a base for installation and a back plate frame fixedly arranged on the base, a top plate is fixedly arranged above the base, a bottom plate is fixedly arranged in the base, a first roller and a second roller are rotatably arranged between the bottom plate and the top plate, the lower ends of the first roller and the second roller are drivingly connected by a chain, the top plate is provided with a first power source for driving the first roller to rotate, the swing arm, the analog switch, the elastic member and the proximity switch are all arranged on the top plate, a connecting seat is fixedly arranged on the side of the base away from the swing arm, and a film rod for mounting a film roll is arranged on the connecting seat.
[0007] As preferred, the film feeding device comprises a base for installation and a back plate frame fixedly arranged on the base, a top plate is fixedly arranged above the base, a bottom plate is fixedly arranged in the base, a first roller and a second roller are rotatably arranged between the bottom plate and the top plate, the top plate is provided with a first power source and a second power source for respectively driving the first roller and the second roller to rotate, the swing arm, the analog switch, the elastic member and the proximity switch are all arranged on the top plate, a connecting seat is fixedly arranged on the side of the base away from the swing arm, and a film rod for mounting a film roll is arranged on the connecting seat.
[0008] As preferred, two limiting columns for limiting the rotation angle of the swing arm are fixedly arranged on the top plate, and the two limiting columns are respectively located on the two sides of the swing arm.
[0009] As preferred, a front cover door for buckling on the first roller and the second roller is arranged on the upper end of the base away from the back plate frame, and a transition roller for pressing the film on the first roller and the second roller is rotatably arranged on the side of the front cover door facing the first roller and the second roller.
[0010] As preferred, the lower end of the front cover door is movably arranged on the base by a hinge, and a limiting member for limiting the rotation angle of the front cover door is arranged on the base, a cross rod is fixedly arranged on the limiting member between the front cover door and the base, a clamping groove for clamping the limiting member is respectively arranged on the lower end of the front cover door and the base, and an installation hole for installing the limiting member is arranged at one end of the clamping groove.
[0011] As preferred, the cross rod and the upper end of the limiting member are clamped in the clamping groove on the lower end of the front cover door, the cross rod and the lower end of the limiting member are clamped in the clamping groove on the base, and the distance between the cross rod and the lower end of the limiting member is greater than the distance between the cross rod and the upper end of the limiting member.
[0012] As preferred, the swing arm is provided with an eccentric surface towards one end of the analog switch, the distance between the eccentric surface and the analog switch changes with the rotation of the swing arm around the mounting rod, and the swing arm is provided with a sensing surface towards one side of the proximity switch.
[0013] As preferred, the distance between the eccentric surface and the analog switch gradually decreases when the swing arm rotates towards the proximity switch.
[0014] As preferred, a motor cover is buckled on the top plate.
[0015] As preferred, a pressing block for pressing the film is movably arranged on the rubber film rod, the pressing block is provided with a spring for driving the pressing block to move downwards, a limiting ring is sleeved on the rubber film rod and located at the upper end of the spring, and the limiting ring is provided with an adjusting knob for fixing the limiting ring.
[0016] Compared with the prior art, when the center distance of the winding object increases, the thin film is tensioned, the swing rod is driven to rotate towards the film feeding device, the swing arm rotates towards the side away from the proximity switch, the distance between the eccentric surface and the analog switch changes, the film speed is adjusted, and the thin film can always wrap the material surface with a relatively uniform tension degree. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structural schematic view of the utility model.
[0018] Figure 2 It is an explosion schematic view of the utility model.
[0019] Figure 3 It is a structural schematic view of the swing arm.
[0020] Figure 4 It is Figure 3 It is an enlarged view of A in the middle.
[0021] Figure 5 It is a structural schematic view of the swing arm.
[0022] Figure 6 It is a structural schematic view of the utility model after the front cover door is opened.
[0023] Figure 7 It is Figure 6 It is an enlarged view of B in the middle.
[0024] Figure 8 It is a structural schematic view of the limiting member.
[0025] Figure 9A structural schematic diagram of Example 2.
[0026] In the figure, 1 is a swing rod, 2 is a mounting rod, 3 is a swing arm, 4 is an analog switch, 5 is a proximity switch, 6 is an elastic member, 7 is a base, 8 is a back plate frame, 9 is a top plate, 10 is a bottom plate, 11 is a first roller, 12 is a second roller, 13 is a chain, 14 is a first power source, 15 is a connecting seat, 16 is a film rod, 17 is a second power source, 18 is a limiting column, 19 is a front cover door, 20 is a transition roller, 21 is a hinge, 22 is a limiting member, 23 is a cross rod, 24 is a clamping groove, 25 is a mounting hole, 26 is an eccentric surface, 27 is a sensing surface, 28 is a motor cover, 29 is a pressing block, 30 is a spring, 31 is a limiting ring, and 32 is an adjusting knob. DETAILED DESCRIPTION
[0027] The utility model will be further described below in combination with the embodiments shown in the drawings: Example 1
[0028] As Figures 1-8 shown in the figure, a film feeding device of a winding machine comprises a film feeding device body and a swing rod 1 movably arranged on one side of the film feeding device to adjust the film feeding speed, the swing rod 1 is arranged on a mounting rod 2 of the film feeding device and can rotate around the mounting rod 2 with the film feeding, and a detection device for detecting the rotation angle of the swing rod 1 relative to the mounting rod 2 and adjusting the film feeding speed is arranged in the film feeding device. The detection device comprises a swing arm 3 arranged on the mounting rod 2, an analog switch 4 for detecting the rotation angle of the swing arm 3, and a proximity switch 5 for detecting the position of the swing arm 3, and an elastic member 6 for rotating the swing arm to the direction of the proximity switch 5 and resetting is arranged in the film feeding device, and the elastic member 6 is located between the swing arm 3 and the swing rod 1. Whether the film is fed is controlled by detecting the position of the swing arm 3 by the proximity switch 5, and the film feeding speed is adjusted by detecting the rotation angle of the swing arm 3 by the analog switch 4, and in actual installation, the position of the detection device can be adjusted according to the needs of the site by the film feeding direction required during installation to realize the adjustment of the film feeding speed in different rotation directions of the swing arm.
[0029] The film feeding device comprises a base 7 for installation, a back plate frame 8 fixedly arranged on the base 7, a top plate 9 fixedly arranged above the base 7, a bottom plate 10 fixedly arranged in the base 7, a first roller 11 and a second roller 12 rotatably arranged between the top plate 9 and the bottom plate 10, the lower ends of the first roller 11 and the second roller 12 being drivingly connected through a chain 13, the top plate 9 being provided with a first power source 14 for driving the first roller 11 to rotate, the swing arm 3, the analog switch 4, the elastic member 6 and the proximity switch 5 all being arranged on the top plate 9, the base 7 being fixedly provided with a connecting seat 15 away from the swing arm 1, the connecting seat 15 being provided with a film rod 16 for installing a film, the swing arm 3 and the film rod 16 being installed in corresponding directions, so that the film feeding device can be conveniently arranged on any side of the object to be wound according to the installation requirement on site. A motor cover 28 is buckled on the top plate 9. The top plate 9 is fixedly provided with two limiting columns 18 for limiting the rotation angle of the swing arm 3, the two limiting columns 18 being respectively located on the two sides of the swing arm 3. The swing arm 3 is provided with an eccentric surface 26 at one end thereof facing the analog switch 4, the distance between the eccentric surface 26 and the analog switch 4 changing with the rotation of the swing arm 3 around the installation rod 2, and the distance between the eccentric surface 26 and the analog switch 4 gradually decreasing when the swing arm 3 rotates towards the proximity switch 5. The swing arm 3 is provided with a sensing surface 27 at one side thereof facing the proximity switch 5, the sensing surface 27 cooperating with the proximity switch 5.
[0030] In use, when the center distance of the object to be wound increases, the film is tensioned and the swing arm 3 is driven to rotate towards the film feeding device, the distance between the eccentric surface 26 and the analog switch 4 changes, and the film speed is adjusted, so that the film can always wrap the material surface at a relatively uniform tension.
[0031] The upper end of the base 7 is provided with a front cover 19 for buckling on the first roller 11 and the second roller 12, and the front cover 19 is rotatably provided with a transition roller 20 for pressing the film on the first roller 11 and the second roller 12. The lower end of the front cover 19 is movably provided on the base 7 through a hinge 21, and the base 7 is provided with a limiting piece 22 for limiting the rotation angle of the front cover 19. The limiting piece 22 is an I-shaped piece, and a crossbar 23 is fixedly provided on the limiting piece 22 between the front cover 19 and the base 7. The lower end of the front cover 19 and the base 7 are respectively provided with a clamping groove 24 for clamping the limiting piece 22, and one end of the clamping groove 24 is provided with a mounting hole 25 for mounting the limiting piece 22. The crossbar 23 and the limiting piece 22 are clamped in the clamping groove 24 at the lower end of the front cover 19, and the crossbar 23 and the limiting piece 22 are clamped in the clamping groove 24 on the base 7. The distance between the crossbar 23 and the lower end of the limiting piece 22 is greater than the distance between the crossbar 23 and the upper end of the limiting piece 22. The front cover 19 can be easily opened to install or adjust the film. The opening angle of the front cover 19 is limited by the limiting piece 22. The width of the clamping groove 24 is matched with the limiting piece 22. When the limiting piece 22 is installed, the limiting piece 22 is placed along the length direction of the clamping groove 24 and clamped in the clamping groove 24, and then the limiting piece 22 is rotated in the mounting hole 25 and clamped in the clamping groove 24 to complete the installation of the limiting piece 22.
[0032] The rubber film rod 16 is movably provided with a pressing block 29 for pressing the film roll, and the pressing block 29 is provided with a spring 30 for driving the pressing block 29 to move downward. The rubber film rod 16 is sleeved with a limiting ring 31 located at the upper end of the spring 30, and the limiting ring 31 is provided with an adjusting knob 32 for fixing the limiting ring 31. The film roll is installed on the rubber film rod 16, and the limiting ring 31 and the spring 30 are used to press the pressing block 29 against the film roll to fix the film roll. Example 2
[0033] The difference from example 1 is that, Figure 9As shown, the film feeding device comprises a base 7 for mounting and a back plate frame 8 fixedly arranged on the base 7, a top plate 9 is fixedly arranged above the base 7, a bottom plate 10 is fixedly arranged in the base 7, the first roller 11 and the second roller 12 are rotatably arranged between the top plate 9 and the bottom plate 10, the first power source 14 and the second power source 17 for driving the first roller 11 and the second roller 12 to rotate respectively are arranged on the top plate 9, the swing arm 3, the analog switch 4, the elastic member 6 and the proximity switch 5 are all arranged on the top plate 9, a connecting seat 15 is fixedly arranged on the side of the base 7 away from the swing arm 1, and the adhesive film rod 16 for mounting the film roll is arranged on the connecting seat 15. The rotation speed of the first roller 11 and the second roller 12 is controlled by the first power source 14 and the second power source 17 respectively, so that the stretching ratio of the film can be conveniently adjusted.
[0034] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations of the description are still within the protection scope of the present application.
Claims
1. A winding machine film feeding device, characterized by, The film feeding device comprises a film feeding device body and a swing rod (1) movably arranged on one side of the film feeding device to adjust the film feeding speed, the swing rod (1) is arranged on a mounting rod (2) of the film feeding device and can rotate around the mounting rod (2), a swing arm (3) is arranged in the film feeding device and fixedly arranged on the mounting rod (2), the swing arm (3) deflects with the rotation of the mounting rod (2), and a detection device is arranged in the film feeding device to detect the rotation angle of the swing arm (3) and adjust the film feeding speed.
2. A winding machine film feeding device according to claim 1, characterized in that The detection device comprises the swing arm (3) arranged on the mounting rod (2), an analog switch (4) for detecting the rotation angle of the swing arm (3), and a proximity switch (5) for detecting the position of the swing arm (3), an elastic member (6) is arranged in the film feeding device to rotate the swing arm (3) to the direction of the proximity switch (5) and reset, and the elastic member (6) is located between the swing arm (3) and the swing rod (1).
3. A winding machine film feeding device according to claim 2, characterized in that The film feeding device comprises a base (7) for mounting and a back plate frame (8) fixedly arranged on the base (7), a top plate (9) is fixedly arranged above the base (7), a bottom plate (10) is fixedly arranged in the base (7), a first roller (11) and a second roller (12) are rotatably arranged between the top plate (9) and the bottom plate (10), the lower ends of the first roller (11) and the second roller (12) are transmissionally connected through a chain (13), the top plate (9) is provided with a first power source (14) for driving the first roller (11) to rotate, the swing arm (3), the analog switch (4), the elastic member (6) and the proximity switch (5) are all arranged on the top plate (9), and a connecting seat (15) is fixedly arranged on the side of the base (7) away from the swing rod (1), and a film mounting rod (16) for mounting a film roll is arranged on the connecting seat (15).
4. A winding machine film feeding device according to claim 2, characterized in that The film feeding device comprises a base (7) for mounting and a back plate frame (8) fixedly arranged on the base (7), a top plate (9) is fixedly arranged above the base (7), a bottom plate (10) is fixedly arranged in the base (7), a first roller (11) and a second roller (12) are rotatably arranged between the top plate (9) and the bottom plate (10), the top plate (9) is provided with a first power source (14) for driving the first roller (11) to rotate, the swing arm (3), the analog switch (4), the elastic member (6) and the proximity switch (5) are all arranged on the top plate (9), and a connecting seat (15) is fixedly arranged on the side of the base (7) away from the swing rod (1), and a film mounting rod (16) for mounting a film roll is arranged on the connecting seat (15).
5. A winding machine film feeding device according to claim 3 or 4, characterized in that The upper end of the base (7) is provided with a front cover (19) for buckling on the first roller (11) and the second roller (12), and the side of the front cover (19) facing the first roller (11) and the second roller (12) is rotatably provided with a transition roller (20) for pressing the film on the first roller (11) and the second roller (12).
6. A winding machine film feeding device according to claim 5, characterized in that The lower end of the front cover (19) is movably provided on the base (7) through a hinge (21), and the base (7) is provided with a limiting piece (22) for limiting the rotation angle of the front cover (19), and the limiting piece (22) is fixedly provided with a cross rod (23) between the front cover (19) and the base (7), and the lower end of the front cover (19) and the base (7) are respectively provided with a clamping groove (24) for clamping the limiting piece (22), and one end of the clamping groove (24) is provided with a mounting hole (25) for mounting the limiting piece (22).
7. A winding machine film feeding device according to claim 6, characterized in that The cross rod (23) and the limiting piece (22) are clamped in the clamping groove (24) at the lower end of the front cover (19), and the cross rod (23) and the limiting piece (22) are clamped in the clamping groove (24) on the base (7), and the distance between the cross rod (23) and the lower end of the limiting piece (22) is greater than the distance between the cross rod (23) and the upper end of the limiting piece (22).
8. A winding machine film feeding device according to claim 2, characterized in that The end of the swing arm (3) facing the analog switch (4) is provided with an eccentric surface (26), and the distance between the eccentric surface (26) and the analog switch (4) changes with the rotation of the swing arm (3) around the mounting rod (2), and the side of the swing arm (3) facing the proximity switch (5) is provided with a sensing surface (27) matched with the proximity switch (5).
9. A winding machine film feeding device according to claim 8, characterized in that The distance between the eccentric surface (26) and the analog switch (4) gradually decreases when the swing arm (3) rotates towards the proximity switch (5).
10. A winding machine film feeding device according to claim 3 or 4, characterized in that The rubber film rod (16) is movably provided with a pressing block (29) for pressing the film, and the pressing block (29) is provided with a spring (30) for driving the pressing block (29) to move downward, and the rubber film rod (16) is provided with a limiting ring (31) located at the upper end of the spring (30), and the limiting ring (31) is provided with an adjusting knob (32) for fixing the limiting ring (31).