A feeding film guiding device and packaging equipment
By designing a feeding film guide device including a substrate, a driving mechanism, an elastic film press assembly, an upper film wheel set and a lower film wheel set, the problem of heat shrink film slipping during the film sealing process is solved, and a more efficient and stable packaging process is achieved, ensuring the continuity of the production line and the safety and quality of the product.
Patent Information
- Application Number
- CN202421278901.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-05
AI Technical Summary
In existing heat shrink film feeding equipment, heat shrink film is prone to slip during the sealing process, resulting in reduced packaging efficiency and unstable quality, especially in high-speed automated production lines, which may lead to stagnation of the production line, increase costs and affect product safety and quality.
A feeding membrane guide device is designed, including a substrate, a driving mechanism, an elastic membrane press assembly, an upper membrane wheel set and a lower membrane wheel set. By adjusting the spring, the upper pressing membrane wheel set is pressed tightly on the pulling membrane belt, increasing the pressure between the upper pressing membrane wheel set, ensuring the stable pressure between the pulling membrane belt and the pulling membrane belt, and preventing the heat shrink film from slipping.
It effectively prevents the heat shrink film from slipping during the transmission process, improves packaging efficiency and quality stability, reduces production line stagnation and cost increase caused by slipping, and ensures product safety and quality.
Smart Images
Figure CN222713890U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging equipment, in particular to a feeding film guiding device and packaging equipment. Background Art
[0002] In the existing heat shrink film feeding equipment on the market, the heat shrink film often slips during the sealing process. This slipping phenomenon not only reduces the packaging efficiency, but also may cause the packaging quality to be unstable, thus affecting the overall packaging effect. Especially in high-speed automated production lines, the problem of heat shrink film slipping is more prominent, which may cause the production line to stagnate, increase production costs, and even pose a potential threat to product safety and quality. Therefore, preventing the heat shrink film from slipping during the conveying and sealing process has become an urgent problem to be solved. Utility Model Content
[0003] The main purpose of the utility model is to provide a feeding and film guiding device and packaging equipment, aiming to solve the technical problem that the heat shrink film is easy to slip during the film conveying and sealing process.
[0004] To achieve the above-mentioned purpose, the utility model provides a feeding and guiding film device, comprising: a substrate, a driving mechanism, an elastic film pressing assembly, an upper film pressing wheel group and a lower film pressing wheel group; the driving mechanism is arranged on the substrate, the driving mechanism comprises a first driving wheel and a second driving wheel extending out of the substrate, the upper film pressing wheel group is located on one side of the first driving wheel, an upper film pulling belt is arranged on the outer side of the upper film pressing wheel group and the first driving wheel, the lower film pressing wheel group is located on one side of the second driving wheel, a lower film pulling belt is arranged on the outer side of the lower film pressing wheel group and the second driving wheel, the elastic film pressing assembly comprises a first fixed plate, a second fixed plate, a pressure plate and an adjusting spring, the first fixed plate is arranged on the substrate, the pressure plate The rotatable arrangement on the substrate, the pressure plate is located at the lower part of the first fixed plate, one end of the adjusting spring is connected to the first fixed plate, the other end of the adjusting spring is connected to the pressure plate, the second fixed plate is arranged on the substrate, the second fixed plate is located below the pressure plate, the upper film pressing wheel group is connected to the pressure plate, and the lower film pressing wheel group is connected to the second fixed plate; the first driving wheel and the second driving wheel rotate to make the upper film pulling belt and the lower film pulling belt move in the same direction, so that the material film pressed between the upper film pulling belt and the lower film pulling belt moves, and the adjusting spring pushes the pressure plate to press the upper film pressing wheel group onto the upper film pulling belt to prevent the material film from slipping during the transmission process.
[0005] Preferably, the upper film pressing wheel group includes a plurality of upper film pressing wheels and a first connecting plate, the upper film pressing wheel is rotatably arranged on the first connecting plate, the pressing plate is connected to the side of the first connecting plate away from the upper film pressing wheel, and the upper film pressing wheel is pressed against the lower part of the upper film pulling belt; the lower film pressing wheel group includes a plurality of lower film pressing wheels and a second connecting plate, the lower film pressing wheel is rotatably arranged on the second connecting plate, the second fixing plate is connected to the side of the connecting plate away from the lower film pressing wheel, and the lower film pressing wheel is pressed against the upper part of the lower film pulling belt.
[0006] Preferably, a first tensioning wheel is provided on the side of the upper film pressing wheel group away from the first driving wheel, the first tensioning wheel is fixedly arranged on the substrate, and the upper film pulling belt is pressed against the peripheral side of the first tensioning wheel; a second tensioning wheel is provided on the side of the lower film pressing wheel group away from the second driving wheel, the second tensioning wheel is fixedly arranged on the substrate, and the lower film pulling belt is pressed against the peripheral side of the second tensioning wheel.
[0007] Preferably, the feeding film guiding device also includes a protective component, which includes an L-shaped connecting piece, an L-shaped fixing piece and a cross beam, wherein the cross beam is parallel to the upper film pressing wheel group, one section of the L-shaped connecting piece is connected to the first fixing plate, and the other section of the L-shaped connecting piece is connected to the cross beam, one section of the L-shaped fixing piece is detachably arranged on the cross beam, and the other section of the L-shaped fixing piece is provided with a first partition plate and a second partition plate, wherein the first partition plate is located on one side of the upper film pressing wheel group, and the second partition plate is located on one side of the lower film pressing wheel group.
[0008] Preferably, a strip groove is provided on the upper portion of the cross beam, and the protective assembly further comprises a fixing knob, and the two fixing knobs press the L-shaped fixing piece against the upper portion of the cross beam, and the fixing knob passes through the L-shaped fixing piece and extends into the strip groove.
[0009] Preferably, the driving mechanism includes a driving motor, a driving sprocket, a first driven sprocket, a second driven sprocket and a tensioning sprocket, the driving motor is arranged on the front side of the substrate, the driving motor output shaft passes through the substrate, the driving sprocket is fixedly sleeved on the end of the driving motor output shaft, the first driven sprocket is located at a position on the back side of the substrate corresponding to the first driving wheel, the second driven sprocket is located at a position on the back side of the substrate corresponding to the second driving wheel, the tensioning sprocket is located on the back side of the substrate, and the driving sprocket, the first driven sprocket, the second driven sprocket and the tensioning sprocket are connected by a chain transmission; the driving motor drives the driving sprocket to rotate when it is working, and drives the first driven sprocket and the second driven sprocket to rotate through the chain transmission, the first driven sprocket drives the first driving wheel to rotate synchronously through the rotating shaft, and the second driven sprocket drives the second driving wheel to rotate synchronously through the rotating shaft.
[0010] Preferably, the driving mechanism further comprises a sprocket fixing member arranged on the back side of the substrate, the tensioning sprocket is arranged on the sprocket fixing member, and the sprocket fixing member is provided with a strip hole for adjusting the installation position.
[0011] Preferably, the substrate is provided with a film material recovery wheel, a side wall of the film material recovery wheel is provided with a V-shaped slope, and the film material recovery wheel is located on a side of the substrate close to the first driving wheel.
[0012] Preferably, a first film guide wheel and a second film guide wheel are provided on a side of the substrate close to the first tensioning wheel, and the first film guide presses the film material onto the second film guide wheel.
[0013] The utility model also provides a packaging device, comprising the feeding film guiding device and a workbench, wherein the feeding film guiding device is arranged on one side of the workbench.
[0014] In the technical solution provided by the utility model, the heat shrink film is transmitted between the upper film-pulling belt and the lower film-pulling belt, the lower film-pressing wheel group is fixed on the base plate by the second fixed plate, the upper end of the adjusting spring supports the first fixed plate, and the lower end drives the rotatable pressing plate to press downward, so that the upper film-pressing wheel group connected to the pressing plate is tightly pressed on the lower film-pressing wheel group, thereby increasing and making the pressure between the upper film-pressing wheel group and the lower film-pressing wheel group more stable, the upper film-pulling belt and the lower film-pulling belt between the upper film-pressing wheel group and the lower film-pressing wheel group maintain stable pressure to transmit the heat shrink film, and the probability of slipping of the heat shrink film during transportation due to belt vibration is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the feeding and film guiding device of the utility model;
[0017] Figure 2 This is a front structural schematic diagram of an embodiment of the feeding and film guiding device of the utility model;
[0018] Figure 3 This is a schematic diagram of the back structure of an embodiment of the feeding and film guiding device of the utility model;
[0019] Figure 4 The figure is a schematic diagram of the overall structure of an embodiment of the packaging equipment of the present utility model.
[0020] In the figure: 1, substrate; 11, film material recovery wheel; 12, first film guide wheel; 13, second film guide wheel; 2, driving mechanism; 21, first driving wheel; 22, second driving wheel; 23, driving motor; 24, driving sprocket; 25, first driven sprocket; 26, second driven sprocket; 27, tensioning sprocket; 28, sprocket fixing member; 281, strip hole; 3, elastic film pressing assembly; 31, first fixing plate; 32, second fixing plate; 33, pressing plate; 34, adjusting spring; 4, upper film pressing wheel Group; 41, upper film-pulling belt; 42, upper film-pressing wheel; 43, first connecting plate; 44, first tensioning wheel; 5, lower film-pressing wheel group; 51, lower film-pulling belt; 52, lower film-pressing wheel; 53, second connecting plate; 54, second tensioning wheel; 6, protective assembly; 61, L-shaped connecting piece; 62, L-shaped fixing piece; 621, first partition; 622, second partition; 63, crossbeam; 631, strip groove; 64, fixing knob; 7, packaging equipment; 71, workbench; 72, feeding and film guiding device. DETAILED DESCRIPTION
[0021] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.
[0022] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.
[0023] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0024] Please refer to Figure 1 The utility model provides a feeding film guiding device, comprising: a substrate 1, a driving mechanism 2, an elastic film pressing assembly 3, an upper film pressing wheel group 4 and a lower film pressing wheel group 5; the driving mechanism 2 is arranged on the substrate 1, the driving mechanism 2 comprises a first driving wheel 21 and a second driving wheel 22 extending out of the substrate 1, the upper film pressing wheel group 4 is located on one side of the first driving wheel 21, and an upper film pulling belt 41 is arranged on the outer side of the upper film pressing wheel group 4 and the first driving wheel 21, the lower film pressing wheel group 5 is located on one side of the second driving wheel 22, and a lower film pulling belt 51 is arranged on the outer side of the lower film pressing wheel group 5 and the second driving wheel 22, the elastic film pressing assembly 3 comprises a first fixed plate 31, a second fixed plate 32, a pressing plate 33 and an adjusting spring 34, the first fixed plate 31 is arranged on the substrate 1, The pressing plate 33 is rotatably arranged on the substrate 1, and the pressing plate 33 is located at the lower part of the first fixed plate 31. One end of the adjusting spring 34 is connected to the first fixed plate 31, and the other end of the adjusting spring 34 is connected to the pressing plate 33. The second fixed plate 32 is arranged on the substrate 1, and the second fixed plate 32 is located below the pressing plate 33. The upper film pressing wheel group 4 is connected to the pressing plate 33, and the lower film pressing wheel group 5 is connected to the second fixed plate 32; the first driving wheel 21 and the second driving wheel 22 rotate to make the upper film pulling belt 41 and the lower film pulling belt 51 move in the same direction, so that the material film pressed between the upper film pulling belt 41 and the lower film pulling belt 51 moves, and the adjusting spring 34 pushes the pressing plate 33 to press the upper film pressing wheel group 4 on the upper film pulling belt 41 to prevent the material film from slipping during the transmission process.
[0025] In the technical solution provided by the utility model, the heat shrink film is transmitted between the upper film-pulling belt 41 and the lower film-pulling belt 51, and the lower film-pressing wheel group 5 is fixed on the base plate 1 through the second fixed plate 32. The upper end of the adjusting spring 34 supports the first fixed plate 31, and the lower end drives the rotatable pressing plate 33 to press downward, so that the upper film-pressing wheel group 4 connected to the pressing plate 33 is tightly pressed on the lower film-pressing wheel group 5, increasing and making the pressure between the upper film-pressing wheel group 4 and the lower film-pressing wheel group 5 more stable, and the upper film-pulling belt 41 and the lower film-pulling belt 51 between the upper film-pressing wheel group 4 and the lower film-pressing wheel group 5 maintain stable pressure to transmit the heat shrink film, which greatly reduces the probability of slipping of the heat shrink film during transportation due to belt vibration.
[0026] Please refer to Figure 1 to Figure 2 In this embodiment, the upper film pressing wheel group 4 includes a plurality of upper film pressing wheels 42 and a first connecting plate 43. The upper film pressing wheel 42 is rotatably arranged on the first connecting plate 43. The pressing plate 33 is connected to the side of the first connecting plate 43 away from the upper film pressing wheel 42. The upper film pressing wheel 42 is pressed tightly against the lower part of the upper film pulling belt 41. The lower film pressing wheel group 5 includes a plurality of lower film pressing wheels 52 and a second connecting plate 53. The lower film pressing wheel 52 is rotatably arranged on the second connecting plate 53. The second fixing plate 32 is connected to the side of the connecting plate away from the lower film pressing wheel 52. The lower film pressing wheel 52 is pressed tightly against the upper part of the lower film pulling belt 51. Due to the connection between the pressing plate 33 and the first connecting plate 43 and the connection between the second fixing plate 32 and the connecting plate, the stability of the upper film pressing wheel group 4 and the lower film pressing wheel group 5 during operation can be ensured.
[0027] Please refer to Figure 1 to Figure 2 In this embodiment, the upper film pressing wheel group 4 is provided with a first tensioning wheel 44 on the side away from the first driving wheel 21, the first tensioning wheel 44 is fixedly arranged on the base plate 1, and the upper film pulling belt 41 is pressed against the periphery of the first tensioning wheel 44; the lower film pressing wheel group 5 is provided with a second tensioning wheel 54 on the side away from the second driving wheel 22, the second tensioning wheel 54 is fixedly arranged on the base plate 1, and the lower film pulling belt 51 is pressed against the periphery of the second tensioning wheel 54. The first tensioning wheel 44 and the second tensioning wheel 54 ensure the stability of the upper film pulling belt 41 and the lower film pulling belt 51 during the transmission process, prevent the belt from sliding or jumping due to relaxation, and thus ensure the stable transmission of the heat shrink film on the upper film pulling belt 41.
[0028] Please refer to Figure 1 to Figure 2In this embodiment, the film feeding and guiding device further comprises a protection component 6, which comprises an L-shaped connecting member 61, an L-shaped fixing member 62 and a cross beam 63. The cross beam 63 is parallel to the upper film pressing wheel group 4. One section of the L-shaped connecting member 61 is connected to the first fixing plate 31, and the other section of the L-shaped connecting member 61 is connected to the cross beam 63. One section of the L-shaped fixing member 62 is detachably arranged on the cross beam 63. The other section of the L-shaped fixing member 62 is provided with a first partition plate 621 and a second partition plate 622. The first partition plate 621 is located on one side of the upper film pressing wheel group 4, and the second partition plate 622 is located on one side of the lower film pressing wheel group 5. The L-shaped fixing member 62 fixes the upper film pressing wheel group 4 and the lower film pressing wheel group 5 through the first partition plate 621 and the second partition plate 622 to prevent the upper film pressing wheel group 4 and the lower film pressing wheel group 5 from being shaken apart in the vertical direction by a large impact force.
[0029] Please refer to Figure 1 to Figure 2 In this embodiment, a strip groove 631 is provided on the upper part of the cross beam 63, and the protection assembly 6 further includes a fixing knob 64. Two fixing knobs 64 press the L-shaped fixing member 62 against the upper part of the cross beam 63, and the fixing knob 64 passes through the L-shaped fixing member 62 and extends into the strip groove 631. The fixing knob 64 is engaged with any part of the strip groove 631, so that any number of L-shaped fixing members 62 can be fixed on the cross beam 63.
[0030] Please refer to Figure 3 In this embodiment, the driving mechanism 2 includes a driving motor 23, a driving sprocket 24, a first driven sprocket 25, a second driven sprocket 26 and a tensioning sprocket 27. The driving motor 23 is arranged on the front side of the substrate 1, and the output shaft of the driving motor 23 passes through the substrate 1. The driving sprocket 24 is fixedly sleeved on the end of the output shaft of the driving motor 23. The first driven sprocket 25 is located at a position corresponding to the first driving wheel 21 on the back side of the substrate 1, and the second driven sprocket 26 is located at a position corresponding to the second driving wheel 22 on the back side of the substrate 1. The tensioning sprocket 27 is located on the back side of the substrate 1. The driving sprocket 24, the first driven sprocket 25, the second driven sprocket 26 and the tensioning sprocket 27 are connected by chain transmission; the driving motor 23 drives the driving sprocket 24 to rotate when working, and drives the first driven sprocket 25 and the second driven sprocket 26 to rotate through the chain transmission. The first driven sprocket 25 drives the first driving wheel 21 to rotate synchronously through the rotating shaft, and the second driven sprocket 26 drives the second driving wheel 22 to rotate synchronously through the rotating shaft. The tensioning sprocket 27 can not only keep the chain in a tensioned state, but also adjust the rotation direction of the first driven sprocket 25 and the second driven sprocket 26 so that the two sprockets rotate in the same direction.
[0031] Please refer to Figure 3In this embodiment, the driving mechanism 2 further includes a sprocket fixing member 28 disposed on the back of the base plate 1, and the tensioning sprocket 27 is disposed on the sprocket fixing member 28. The sprocket fixing member 28 is provided with a strip hole 281 for adjusting the installation position. The sprocket fixing member 28 adjusts the installation position of the tensioning sprocket 27 through the strip hole 281 having a certain length, and can fine-tune the position of the tensioning sprocket 27 inside the chain, thereby realizing precise adjustment of the chain tension.
[0032] Please refer to Figures 1 to 3 In this embodiment, the substrate 1 is provided with a film material recovery wheel 11, and the side wall of the film material recovery wheel 11 is provided with a V-shaped slope surface. The film material recovery wheel 11 is located on the side of the substrate 1 close to the first driving wheel 21. The heat shrinkable film material transported from the joint of the upper film belt 41 and the lower film belt 51 is wound around the film material recovery wheel 11, and the V-shaped slope surface on the surface can collect the heat shrinkable film material, which is conducive to the subsequent recycling of the heat shrinkable film material.
[0033] Please refer to Figures 1 to 3 In this embodiment, the first film guide wheel 12 and the second film guide wheel 13 are provided on one side of the substrate 1 close to the first tensioning wheel 44, and the first film guide wheel presses the film material onto the second film guide wheel 13. The heat shrinkable film material is transferred from between the first film guide wheel 12 and the second film guide wheel 13 to between the upper film pulling belt 41 and the lower film pulling belt 51, and the first film guide wheel 12 and the second film guide wheel 13 mainly play a guiding role.
[0034] Please refer to Figure 4 The utility model further provides a packaging device 7, comprising a film feeding and guiding device and a workbench 71, wherein the film feeding and guiding device is arranged on one side of the workbench 71. The film feeding and guiding device 72 conveys heat shrinkable film material to cover the surface of the product to be packaged on the workbench 71, and the heat shrinkable film material remaining after die-cutting and packaging is conveyed to the film material recovery device through the film recovery wheel 11 in the film feeding and guiding device 72.
[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A feeding and film guiding device, characterized in that: include: A base plate (1), a driving mechanism (2), an elastic film pressing assembly (3), an upper film pressing wheel assembly (4) and a lower film pressing wheel assembly (5); The driving mechanism (2) is arranged on the substrate (1), and the driving mechanism (2) comprises a first driving wheel (21) and a second driving wheel (22) extending out of the substrate (1); the upper film pressing wheel group (4) is located on one side of the first driving wheel (21); an upper film pulling belt (41) is provided on the outer side of the upper film pressing wheel group (4) and the first driving wheel (21); the lower film pressing wheel group (5) is located on one side of the second driving wheel (22); a lower film pulling belt (51) is provided on the outer side of the lower film pressing wheel group (5) and the second driving wheel (22); the elastic film pressing assembly (3) comprises a first fixing plate (31), a second fixing plate (32), a pressing plate (33) and a contact plate (34). 3) and an adjusting spring (34), the first fixed plate (31) is arranged on the base plate (1), the pressing plate (33) is rotatably arranged on the base plate (1), the pressing plate (33) is located at the lower part of the first fixed plate (31), one end of the adjusting spring (34) is connected to the first fixed plate (31), and the other end of the adjusting spring (34) is connected to the pressing plate (33), the second fixed plate (32) is arranged on the base plate (1), the second fixed plate (32) is located below the pressing plate (33), the upper film pressing wheel group (4) is connected to the pressing plate (33), and the lower film pressing wheel group (5) is connected to the second fixed plate (32); The first driving wheel (21) and the second driving wheel (22) rotate to make the upper film-pulling belt (41) and the lower film-pulling belt (51) move in the same direction, so that the material film pressed between the upper film-pulling belt (41) and the lower film-pulling belt (51) moves, and the adjusting spring (34) pushes the pressure plate (33) to press the upper film-pressing wheel group (4) onto the upper film-pulling belt (41) to prevent the material film from slipping during the transmission process.
2. The film feeding and guiding device according to claim 1, characterized in that: The upper film pressing wheel group (4) comprises a plurality of upper film pressing wheels (42) and a first connecting plate (43), wherein the upper film pressing wheel (42) is rotatably arranged on the first connecting plate (43), the pressing plate (33) is connected to a side of the first connecting plate (43) away from the upper film pressing wheel (42), and the upper film pressing wheel (42) is pressed tightly against the lower part of the upper film pulling belt (41); The lower film pressing wheel group (5) includes a plurality of lower film pressing wheels (52) and a second connecting plate (53), wherein the lower film pressing wheel (52) is rotatably arranged on the second connecting plate (53), and the second fixing plate (32) is connected to the side of the connecting plate away from the lower film pressing wheel (52), and the lower film pressing wheel (52) is pressed tightly against the upper part of the lower film pulling belt (51).
3. The film feeding and guiding device according to claim 2, characterized in that: A first tensioning wheel (44) is provided on the side of the upper film pressing wheel group (4) away from the first driving wheel (21), the first tensioning wheel (44) is fixedly arranged on the base plate (1), and the upper film pulling belt (41) is pressed against the peripheral side of the first tensioning wheel (44); A second tensioning wheel (54) is provided on the side of the lower film pressing wheel group (5) facing away from the second driving wheel (22); the second tensioning wheel (54) is fixedly arranged on the base plate (1); and the lower film pulling belt (51) is pressed against the circumference of the second tensioning wheel (54).
4. The film feeding and guiding device according to claim 3, characterized in that: The feeding film guiding device also includes a protective component (6), which includes an L-shaped connecting member (61), an L-shaped fixing member (62) and a crossbeam (63). The crossbeam (63) is parallel to the upper film pressing wheel group (4). One section of the L-shaped connecting member (61) is connected to the first fixing plate (31), and the other section of the L-shaped connecting member (61) is connected to the crossbeam (63). One section of the L-shaped fixing member (62) is detachably arranged on the crossbeam (63), and the other section of the L-shaped fixing member (62) is provided with a first partition plate (621) and a second partition plate (622). The first partition plate (621) is located on one side of the upper film pressing wheel group (4), and the second partition plate (622) is located on one side of the lower film pressing wheel group (5).
5. The film feeding and guiding device according to claim 4, characterized in that: The upper portion of the cross beam (63) is provided with a strip groove (631), and the protection assembly (6) further comprises a fixing knob (64), wherein the two fixing knobs (64) press the L-shaped fixing member (62) against the upper portion of the cross beam (63), and the fixing knob (64) passes through the L-shaped fixing member (62) and extends into the strip groove (631).
6. The film feeding and guiding device according to claim 1, characterized in that: The driving mechanism (2) comprises a driving motor (23), a driving sprocket (24), a first driven sprocket (25), a second driven sprocket (26) and a tensioning sprocket (27); the driving motor (23) is arranged on the front side of the substrate (1); the output shaft of the driving motor (23) passes through the substrate (1); the driving sprocket (24) is fixedly sleeved on the end of the output shaft of the driving motor (23); the first driven sprocket (25) is located at a position on the back side of the substrate (1) corresponding to the first driving wheel (21); the second driven sprocket (26) is located at a position on the back side of the substrate (1) corresponding to the second driving wheel (22); the tensioning sprocket (27) is located on the back side of the substrate (1); the driving sprocket (24), the first driven sprocket (25), the second driven sprocket (26) and the tensioning sprocket (27) are connected by chain transmission; The driving motor (23) drives the driving sprocket (24) to rotate, and drives the first driven sprocket (25) and the second driven sprocket (26) to rotate through chain transmission; the first driven sprocket (25) drives the first driving wheel (21) to rotate synchronously through the rotating shaft, and the second driven sprocket (26) drives the second driving wheel (22) to rotate synchronously through the rotating shaft.
7. The film feeding and guiding device according to claim 6, characterized in that: The driving mechanism (2) further comprises a sprocket fixing member (28) arranged on the back side of the base plate (1), the tensioning sprocket (27) being arranged on the sprocket fixing member (28), and the sprocket fixing member (28) being provided with a strip hole (281) for adjusting the installation position.
8. The film feeding and guiding device according to claim 1, characterized in that: The substrate (1) is provided with a film material recovery wheel (11), the side wall of the film material recovery wheel (11) is provided with a V-shaped slope, and the film material recovery wheel (11) is located on a side of the substrate (1) close to the first driving wheel (21).
9. The film feeding and guiding device according to claim 3, characterized in that: A first film guide wheel (12) and a second film guide wheel (13) are provided on one side of the substrate (1) close to the first tensioning wheel (44), and the first film guide presses the film material onto the second film guide wheel (13).
10. A packaging device, comprising a feeding film guiding device and a workbench (71) as claimed in any one of claims 1 to 9, characterized in that: The material feeding and film guiding device is arranged on one side of the workbench (71).