Film feeding device of three-dimensional packaging machine
By designing adjustment components in the film feeding device of the three-dimensional packaging machine, the problem of difficulty in adjusting tension is solved, and the adaptation and tension adjustment of film materials of different thicknesses is achieved, which improves the stability and adaptability of the film feeding device.
Patent Information
- Application Number
- CN202421534457.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing three-dimensional packaging machine film feeding device has problems that it is difficult to adjust in terms of tension adjustment, especially when dealing with different packaging materials, it is difficult to ensure the stable transportation of the film material.
A membrane feeding device including an unwinding assembly and an adjustment assembly is designed. The adjustment assembly consists of a friction wheel, swing arm, spring, damping belt, floating guide roller, etc. Through the cooperation of these components, the tension of the membrane material during the film feeding process can be adjusted.
Effective adaptation of film materials of different thicknesses is achieved, the tension of the film material during the film feeding process is reduced, the risk of film material being pulled out is avoided, and the stability and adaptability of the film feeding device are improved.
Smart Images
Figure CN222682818U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the field of packaging machines, and more specifically, to a film feeding device for a three-dimensional packaging machine. Background Art
[0002] The three-dimensional packaging machine is a packaging machine used to wrap a layer of transparent film or similar protective film on the outside of the material. Its film feeding device plays a vital role. It is responsible for accurately and stably delivering the packaging film to the packaging position to ensure the smooth progress of the packaging process. However, the diversity of packaging materials poses a challenge to the tension adjustment of the film feeding device. Different packaging materials have different physical properties, such as thickness, elasticity, friction coefficient, etc. These properties will affect the movement state of the packaging film in the film feeding device, and then affect the stability of the tension. Therefore, different tension adjustment strategies need to be adopted for different packaging materials, which undoubtedly increases the difficulty of tension adjustment. Therefore, it is necessary to solve the above technical problems. Summary of the invention
[0003] The purpose of the embodiments of the present application is to provide a film feeding device for a three-dimensional packaging machine to solve the technical problem in the prior art that the tension of the film feeding device is difficult to adjust.
[0004] To achieve the above purpose, the technical solution adopted by the present application is: to provide a film feeding device for a three-dimensional packaging machine, comprising:
[0005] frame;
[0006] An unwinding assembly, comprising an unwinding shaft installed in parallel and at intervals on the frame and used for unwinding the film material and a traction roller used for traction the film material;
[0007] The adjusting component comprises a friction wheel which is mounted on the unwinding shaft and can rotate with the unwinding shaft, a swing arm which is rotatably hinged on the frame and can swing relative to the frame under the action of gravity, a spring connected to the swing arm, and a damping belt which is wound on the friction wheel and has two ends respectively connected to the frame and the spring. The adjusting component also comprises a plurality of floating guide rollers which are rotatably connected to the swing arm along the extension direction of the swing arm. The floating guide rollers are located between the unwinding shaft and the traction roller and are used to press against the film material between the unwinding shaft and the traction roller. The connection between the spring and the swing arm is closer to the rotation center axis of the swing arm than that of all the floating guide rollers.
[0008] Optionally, the adjustment assembly further comprises a fixed guide roller rotatably mounted on the frame, a screw rod vertically connected to the frame along the height direction of the frame, and an adjustable guide roller threadedly connected to the screw rod and capable of moving relative to the screw rod along the axial direction of the screw rod;
[0009] The fixed guide roller is located between the traction roller and the floating guide roller and is used for carrying the film material between the unwinding shaft and the traction roller. The adjustable guide roller is pressed against the film material between the fixed guide roller and the traction roller.
[0010] Optionally, the adjustment assembly further comprises a rotating shaft rotatably connected to the frame and used for rotating around its own axis;
[0011] A bevel gear pair for transmitting power is connected between the rotating shaft and the screw rod.
[0012] Optionally, the adjustment assembly further comprises a plurality of intermediate guide rollers which are arranged between the adjustable guide roller and the traction roller and are rotatably connected to the frame.
[0013] Optionally, the unwinding assembly further comprises a pressure roller rotatably connected to the frame and parallel to the traction roller, wherein the pressure roller is close to the traction roller and cooperates with the traction roller to form a gap for the film material to pass through.
[0014] Optionally, the unwinding assembly further comprises a motor which is transmission-connected to the traction roller and is used to drive the traction roller.
[0015] The beneficial effect of the film feeding device of the three-dimensional packaging machine provided by the present application is that: compared with the prior art, the film feeding device of the three-dimensional packaging machine provided by the present application is provided with an adjustment component, and when the film material is transported from the unwinding shaft to the traction roller, it can pass through the floating guide roller in the adjustment component in advance and make the floating guide roller press against the film material. Since the floating guide roller farther from the central axis of the swing arm rotation has a larger force arm, when the film material passes by the floating guide roller farther from the central axis of the swing arm rotation, the swing arm can be rotated relative to the frame and the elastic force of the spring can be reduced, so that the friction between the damping belt and the friction wheel is also smaller, and the unwinding shaft can transport the film material at a faster speed and make the tension of the transported film material smaller. In this way, compared with the film material with a larger thickness, the film material with a smaller thickness can choose to pass through the floating guide roller farther from the central axis of the swing arm rotation, so that the film material with a smaller thickness can be subjected to a smaller tension, so that it is not easy to be broken. Therefore, the film feeding device of the three-dimensional packaging machine provided by the present application can be well used to adapt to the transport of film materials of different thicknesses, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0017] Figure 1The overall structure of the film feeding device of the three-dimensional packaging machine provided in the embodiment of the present application is schematically shown. Figure 1 ;
[0018] Figure 2 The overall structure of the film feeding device of the three-dimensional packaging machine provided in the embodiment of the present application is schematically shown. Figure 2 ;
[0019] Figure 3 This is a schematic cross-sectional structure diagram of a film feeding device for a three-dimensional packaging machine provided in an embodiment of the present application.
[0020] Among them, the reference numerals in the figure are: 101, frame; 102, unwinding shaft; 103, traction roller; 104, friction wheel; 105, swing arm; 106, spring; 107, damping belt; 108, floating guide roller; 109, fixed guide roller; 110, screw rod; 111, adjustable guide roller; 112, rotating shaft; 113, bevel gear pair; 114, intermediate guide roller; 115, pressure roller; 116, motor. DETAILED DESCRIPTION
[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0023] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0025] Please also read Figures 1 to 3 Now, a three-dimensional packaging machine film feeding device provided in an embodiment of the present application is described. The three-dimensional packaging machine film feeding device includes a frame 101, a reeling component and an adjusting component. Among them:
[0026] The unwinding assembly includes an unwinding shaft 102 which is installed in parallel and at intervals on the frame 101 and is used for unwinding the film material, and a traction roller 103 which is used for traction the film material. The adjusting component includes a friction wheel 104 which is mounted on the unwinding shaft 102 and can rotate with the unwinding shaft 102, a swing arm 105 which is rotatably hinged on the frame 101 and can swing relative to the frame 101 under the action of gravity, a spring 106 connected to the swing arm 105, and a damping belt 107 which is wound on the friction wheel 104 and has two ends respectively connected to the frame 101 and the spring 106. The adjusting component also includes a plurality of floating guide rollers 108 which are rotatably connected to the swing arm 105 along the extension direction of the swing arm 105. The floating guide rollers 108 are located between the unwinding shaft 102 and the traction roller 103 and are used to press against the film material between the unwinding shaft 102 and the traction roller 103. The connection between the spring 106 and the swing arm 105 is closer to the rotation center axis of the swing arm 105 than all the floating guide rollers 108.
[0027] According to the above structure provided in this embodiment, an adjustment component is provided in the film feeding device of the three-dimensional packaging machine provided in this embodiment. When the film material is transported from the unwinding shaft 102 to the traction roller 103, it can pass through the floating guide roller 108 in the adjustment component in advance and make the floating guide roller 108 press against the film material. Since the floating guide roller 108 farther from the central axis of rotation of the swing arm 105 has a larger force arm, when the film material passes by the floating guide roller 108 farther from the central axis of rotation of the swing arm 105, the swing arm 105 can be rotated relative to the frame 101 and the elastic force of the spring 106 can be reduced, thereby reducing the friction between the damping belt 107 and the friction wheel 104. The unwinding shaft 102 can transport the film material at a faster speed and make the tension of the transported film material smaller. In this way, compared with the film material with a larger thickness, the film material with a smaller thickness can choose to pass through the floating guide roller 108 farther from the central axis of rotation of the swing arm 105, so that the film material with a smaller thickness can be subjected to a smaller tension and is not easily broken. Therefore, the film feeding device of the three-dimensional packaging machine provided in this embodiment can be well used to adapt to and feed film materials of different thicknesses, which is far superior to the prior art.
[0028] In another embodiment of the present application, please refer to Figures 1 to 3The adjustment component also includes a fixed guide roller 109 rotatably mounted on the frame 101, a screw rod 110 vertically connected to the frame 101 along the height direction of the frame 101, and an adjustable guide roller 111 threadedly connected to the screw rod 110 and capable of moving relative to the screw rod 110 along the axial direction of the screw rod 110. The fixed guide roller 109 is located between the traction roller 103 and the floating guide roller 108 and is used to carry the film material between the unwinding shaft 102 and the traction roller 103. The adjustable guide roller 111 is pressed against the film material between the fixed guide roller 109 and the traction roller 103.
[0029] According to the above structure provided in the present embodiment, the film material coming out of the floating guide roller 108 can pass through the fixed guide roller 109 and the adjustable guide roller 111 in sequence and then be transported to the traction roller 103. Since the adjustable guide roller 111 can move along the axial direction of the screw rod 110 during the rotation of the screw rod 110, the tension of the film material between the fixed guide roller 109 and the traction roller 103 can be adjusted by the adjustable guide roller 111, which is conducive to making the three-dimensional packaging machine film feeding device provided in the present embodiment better adapted to the transportation of film materials of different thicknesses.
[0030] In another embodiment of the present application, please refer to Figures 1 to 3 The adjustment assembly also includes a rotating shaft 112 rotatably connected to the frame 101 and used to rotate around its own axis, and a bevel gear pair 113 for transmitting power is connected between the rotating shaft 112 and the screw rod 110. According to the above structure provided in this embodiment, the rotating shaft 112 can stably drive the screw rod 110 to rotate through the bevel gear pair 113, so that the adjustable guide roller 111 threadedly connected to the screw rod 110 can move more stably relative to the screw rod 110, which is conducive to better adjusting the film material conveying tension of the three-dimensional packaging machine film feeding device provided in this embodiment.
[0031] In another embodiment of the present application, please refer to Figures 1 to 3 The adjustment assembly further includes a plurality of intermediate guide rollers 114 disposed between the adjustable guide roller 111 and the traction roller 103 and rotatably connected to the frame 101. According to the above structure provided in this embodiment, the plurality of intermediate guide rollers 114 disposed between the adjustable guide roller 111 and the traction roller 103 can further improve the film material conveying stability of the film conveying device of the three-dimensional packaging machine in this embodiment.
[0032] In another embodiment of the present application, please refer to Figures 1 to 3The unwinding assembly further includes a pressure roller 115 rotatably connected to the frame 101 and parallel to the traction roller 103. The pressure roller 115 is close to the traction roller 103 and cooperates with the traction roller 103 to form a gap for the film to pass through. According to the above structure provided in this embodiment, the pressure roller 115 can convey the film more stably with the traction roller 103, which is conducive to further improving the film conveying stability of the film conveying device of the three-dimensional packaging machine in this embodiment.
[0033] In another embodiment of the present application, please refer to Figures 1 to 3 The unwinding assembly further includes a motor 116 that is transmission-connected to the traction roller 103 and is used to drive the traction roller 103. According to the above structure provided in this embodiment, the motor 116 can stably drive the traction roller 103 to rotate, which is beneficial to further improve the film material conveying stability of the film conveying device of the three-dimensional packaging machine in this embodiment.
[0034] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A film feeding device for a three-dimensional packaging machine, characterized in that: include: Rack(101); An unwinding assembly, comprising an unwinding shaft (102) installed in parallel and at intervals on the frame (101) and used for unwinding the film material, and a traction roller (103) used for traction the film material; An adjustment component comprises a friction wheel (104) mounted on the unwinding shaft (102) and capable of rotating with the unwinding shaft (102), a swing arm (105) rotatably hinged on the frame (101) and capable of swinging relative to the frame (101) under the action of gravity, a spring (106) connected to the swing arm (105), and a damping belt (107) wound on the friction wheel (104) and having two ends respectively connected to the frame (101) and the spring (106). The adjustment component It also includes a plurality of floating guide rollers (108) connected to the swing arm (105) and rotatable along the extension direction of the swing arm (105), wherein the floating guide rollers (108) are located between the unwinding shaft (102) and the traction roller (103) and are used to press against the film material between the unwinding shaft (102) and the traction roller (103), and the connection between the spring (106) and the swing arm (105) is closer to the rotation center axis of the swing arm (105) than all the floating guide rollers (108).
2. The film feeding device of the three-dimensional packaging machine according to claim 1, characterized in that: The adjustment assembly further comprises a fixed guide roller (109) rotatably mounted on the frame (101), a screw rod (110) vertically connected to the frame (101) along the height direction of the frame (101), and an adjustable guide roller (111) threadedly connected to the screw rod (110) and capable of moving relative to the screw rod (110) along the axial direction of the screw rod (110); The fixed guide roller (109) is located between the traction roller (103) and the floating guide roller (108) and is used to carry the film material between the unwinding shaft (102) and the traction roller (103), and the adjustable guide roller (111) is pressed against the film material between the fixed guide roller (109) and the traction roller (103).
3. The film feeding device of the three-dimensional packaging machine according to claim 2, characterized in that: The adjustment assembly further comprises a rotating shaft (112) rotatably connected to the frame (101) and used for rotating around its own axis; A bevel gear pair (113) for transmitting power is connected between the rotating shaft (112) and the screw rod (110).
4. The film feeding device of the three-dimensional packaging machine according to claim 2, characterized in that: The adjustment assembly further comprises a plurality of intermediate guide rollers (114) which are arranged between the adjustable guide roller (111) and the traction roller (103) and are rotatably connected to the frame (101).
5. The film feeding device of the three-dimensional packaging machine according to claim 1, characterized in that: The unwinding assembly further comprises a pressure roller (115) rotatably connected to the frame (101) and parallel to the traction roller (103); the pressure roller (115) is close to the traction roller (103) and cooperates with the traction roller (103) to form a gap for the film material to pass through.
6. The film feeding device of the three-dimensional packaging machine according to claim 1 or 5, characterized in that: The unwinding assembly further comprises a motor (116) which is transmission-connected to the traction roller (103) and is used to drive the traction roller (103).