A kind of biodegradable winding film processing equipment fixing device

Abstract

The utility model discloses a kind of fixing devices for biodegradable wrapping film processing equipment, belong to wrapping film processing equipment technical field, including pedestal table, film roll, adjustable centering mechanism, anti-creep limiting mechanism and edge guide mechanism, the adjustable centering mechanism includes the concave bottom plate fixed on the upper surface of pedestal table, one end of the concave bottom plate is fixedly connected with first motor, the main shaft end of first motor is penetrated to the inside of concave bottom plate and is fixedly connected with bidirectional screw rod, two symmetrically arranged nut blocks are threadedly connected on the bidirectional screw rod.In the utility model, by setting anti-creep limiting mechanism, flexible fitting to the two end surfaces of wrapping film can be realized, the axial movement of film reel can be effectively limited, while preventing the end of wrapping film from being crushed, by setting edge guide mechanism, the edge of wrapping film can be guided and flattened during conveying, to prevent edge deviation or edge wrinkle.

Description

Technical Field

[0001] This utility model belongs to the technical field of stretch film processing equipment, specifically a fixing device for biodegradable stretch film processing equipment. Background Technology

[0002] Biodegradable stretch film is made from biodegradable materials such as PLA (polylactic acid) or PBAT (polybutylene adipate / terephthalate) as the base material, modified by adding natural polymers such as starch and cellulose. It is an environmentally friendly packaging material that can decompose into carbon dioxide and water under composting conditions. Through blending modification or multi-layer co-extrusion technology, the tensile strength (up to 30 MPa and above) and elongation at break (>400%) can be improved, while maintaining a biodegradability rate of more than 90% within 180 days. For example, when PBAT and PLA are mixed in a 70 / 30 ratio, the right-angle tear strength is nearly 3 times higher than that of pure PLA, and the heat-sealing performance meets the requirements.

[0003] In a Chinese patent for a fixing device for biodegradable stretch film processing equipment (authorization announcement number: CN217675757U), the device includes a mounting base. A connecting seat is fixedly mounted on the upper outer surface of the mounting base. A mounting groove is formed in the middle of the upper inner surface of the connecting seat. A sliding clamping device for improving the convenience of fixing the stretch film is provided inside the mounting groove. A detachable fixing seat device for improving the convenience of assembling and disassembling the stretch film is provided on the upper outer surface of the sliding clamping device. The detachable fixing seat device includes a mounting block and a placement roller. Embedding grooves are formed in the middle of the outer surfaces on both sides of the mounting block. Rolling bearings are fixedly mounted on the inner surface of one side of the mounting block. This device has a simple structure and convenient operation by setting a detachable fixing seat device, which improves the convenience of assembling and disassembling the stretch film and improves work efficiency. However, this device does not have two end faces of the stretch film for positioning and restriction. During high-speed processing, the film roll is prone to axial movement, resulting in uneven film tension. Moreover, it lacks effective edge restraint, and the film is prone to edge wrinkles and displacement, affecting the quality of subsequent processing. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a fixing device for a biodegradable wrapping film processing equipment, comprising a base platform, a film roller, an adjustable centering mechanism, an anti-slip limiting mechanism, and an edge guiding mechanism. The adjustable centering mechanism includes a concave base plate fixed to the upper surface of the base platform. A first motor is fixedly connected to one end of the concave base plate. The main shaft of the first motor passes through the inner side of the concave base plate and is fixedly connected to a bidirectional lead screw. Two symmetrically arranged nut blocks are threaded onto the bidirectional lead screw. A vertical plate is fixedly connected to each of the two nut blocks. A clamp is rotatably connected to one side of each of the two vertical plates via a rotating component. The two ends of the film roller are respectively inserted into the grooves of the two clamps. The anti-slip limiting mechanism includes concave frames symmetrically fixed to the outer walls of two vertical plates. A second motor is fixedly connected to the outer wall of each concave frame. The main shaft of the second motor passes through the concave frame and is fixedly connected to a threaded rod. A nut strip is threaded onto the threaded rod. Two symmetrically arranged connecting rods are fixedly connected to one side of the nut strip. One end of each connecting rod passes through the vertical plate and is fixedly connected to an adjusting ring. The adjusting ring is sleeved on the outside of the film roller. A pressure-relieving mechanism is arranged at equal intervals around the adjusting ring. A pressure ring plate is fixedly connected to the end of the pressure-relieving mechanism away from the adjusting ring.

[0005] As a further embodiment of this utility model: the edge guiding mechanism includes two fixed frames symmetrically fixed to the front of the two vertical plates. The outer walls of the front ends of the two fixed frames are each fixedly connected to a horizontally arranged electric push rod. One end of the electric push rod passes through the fixed frame and is fixedly connected to a groove shell. A vertical rod is fixedly connected in the groove shell. Two symmetrically arranged sliding sleeves are sleeved on the vertical rod. A retaining spring is fixedly connected between the two sliding sleeves and the inner walls of both ends of the groove shell. A rotating shaft is installed on one side of each of the two sliding sleeves. The two rotating shafts extend to the outside of the groove shell and are rotatably connected to guide rollers.

[0006] As a further improvement of this utility model, the outer side wall of the guide roller is fixedly fitted with a rubber sleeve.

[0007] As a further embodiment of this utility model: the pressure relief mechanism includes several sliding pins that are equally spaced and inserted into the side wall of the adjusting ring and slidably connected thereto. One end of each of the sliding pins is fixedly connected to the pressure ring plate. Several pressure relief springs are fixedly connected between the adjusting ring and the pressure ring plate. Each pressure relief spring is respectively sleeved on the outside of a sliding pin.

[0008] As a further embodiment of this utility model: the inner wall of the concave bottom plate is fixedly connected with two symmetrically arranged limiting rods, and both limiting rods pass through the two nut blocks.

[0009] As a further embodiment of this utility model: a control switch is fixedly connected at the corner of the upper side wall of the base platform, and the control switch is electrically connected to the adjustable centering mechanism, the anti-movement limiting mechanism and the edge guiding mechanism.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting an anti-movement limiting mechanism, starts the second motor to drive the threaded rod to rotate. At this time, the nut strip is forced to move, pushing the adjusting ring fixed to the connecting rod to move, and then driving the pressure ring plate to move on the film roller until it is in contact with the end face of the film roll. With the help of the pressure relief mechanism, flexible bonding is achieved, which can effectively limit the axial movement of the film roll.

[0011] 2. This utility model, by setting an edge guiding mechanism, can adjust the distance between two sets of guide rollers by starting the electric push rod to extend or shorten according to the width of the wrapping film. Then, the edge of the wrapping film is placed between the two guide rollers and clamped by the elastic force of the clamping spring. This can guide and flatten the edge of the wrapping film during the conveying process, preventing edge wrinkles or deviation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional enlarged structural diagram of the concave base plate of this utility model; Figure 3 This is a three-dimensional enlarged structural diagram of the concave frame of this utility model; Figure 4 This is a three-dimensional sectional view of the groove shell of this utility model.

[0013] The correspondence between the labels and component names in the attached figures is as follows: 1. Base platform; 2. Concave base plate; 3. First motor; 4. Two-way lead screw; 5. Nut block; 6. Vertical plate; 7. Clamping seat; 8. Membrane roller; 9. Concave frame; 10. Second motor; 11. Threaded rod; 12. Nut strip; 13. Connecting rod; 14. Adjusting ring; 15. Pressure ring plate; 16. Fixing frame; 17. Electric push rod; 18. Groove shell; 19. Vertical rod; 20. Sliding sleeve; 21. Pressing spring; 22. Rotating shaft; 23. Guide clamping roller; 24. Rubber sleeve; 25. Sliding pin; 26. Pressure relief spring; 27. Limiting rod; 28. Control switch. Detailed Implementation

[0014] Please see Figures 1-4This embodiment provides a fixing device for a biodegradable stretch film processing equipment, including a base platform 1, a film roller 8, an adjustable centering mechanism, an anti-movement limiting mechanism, and an edge guiding mechanism. The adjustable centering mechanism includes a concave base plate 2 fixed to the upper surface of the base platform 1. A first motor 3 is fixedly connected to one end of the concave base plate 2. The main shaft end of the first motor 3 passes through the inner side of the concave base plate 2 and is fixedly connected to a bidirectional lead screw 4. Two symmetrically arranged nut blocks 5 are threaded onto the bidirectional lead screw 4. A vertical plate 6 is fixedly connected to each of the two nut blocks 5. On opposite sides of the film roller 8, a clamping seat 7 is rotatably connected via a rotating component. The two ends of the film roller 8 are respectively inserted into the grooves of the two clamping seats 7. When it is necessary to install and fix the film roller 8, the first motor 3 is started, which can drive the bidirectional lead screw 4 to rotate. Since the bidirectional lead screw 4 is threadedly connected to the two nut blocks 5 respectively, the two nut blocks 5 are displaced in opposite directions, which can drive the two vertical plates 6 to displace in opposite directions, thereby driving the two clamping seats 7 to approach the two ends of the film roller 8 until the two ends of the film roller 8 are respectively inserted into the grooves of the two clamping seats 7, thus completing the installation and fixing of the film roller 8. The installation and disassembly are convenient. The anti-slip limiting mechanism includes concave frames 9 symmetrically fixed to the outer walls of two vertical plates 6. A second motor 10 is fixedly connected to the outer wall of each concave frame 9. The main shaft of the second motor 10 passes through the concave frame 9 and is fixedly connected to a threaded rod 11. A nut strip 12 is threaded onto the threaded rod 11. Two symmetrically arranged connecting rods 13 are fixedly connected to one side of the nut strip 12. One end of each connecting rod 13 passes through the vertical plate 6 and is fixedly connected to an adjusting ring 14. The adjusting ring 14 is sleeved on the outside of the film roller 8. The pressure-relief mechanism is arranged in a ring at equal intervals. The end of the pressure-relief mechanism away from the adjusting ring 14 is fixedly connected to the pressure ring plate 15. According to the width of the film roll, the second motor 10 is started to work, which can drive the threaded rod 11 to rotate. Since the threaded rod 11 is threadedly connected to the nut strip 12, the nut strip 12 is forced to move, pushing the adjusting ring 14 fixed to the connecting rod 13 to move, and then driving the pressure ring plate 15 to move on the film roller 8 until it is in contact with the end face of the film roll. In conjunction with the pressure-relief mechanism, flexible bonding is achieved, which can effectively limit the axial movement of the film roll.

[0015] like Figure 1 and Figure 4As shown: The edge guiding mechanism includes two fixed frames 16 symmetrically fixed to the front of the two vertical plates 6. A horizontally arranged electric push rod 17 is fixedly connected to the outer front wall of each of the two fixed frames 16. One end of the electric push rod 17 passes through the fixed frame 16 and is fixedly connected to a slotted shell 18. A vertical rod 19 is fixedly connected to the slotted shell 18. Two symmetrically arranged sliding sleeves 20 are fitted onto the vertical rod 19. A retaining spring 21 is fixedly connected between each sliding sleeve 20 and the inner walls of both ends of the slotted shell 18. A retaining spring 21 is installed on one side of each sliding sleeve 20. There are two rotating shafts 22, both of which extend to the outside of the tank shell 18 and are rotatably connected to guide clamping rollers 23. First, according to the width of the stretch film, the distance between the two sets of guide clamping rollers 23 is adjusted. The electric push rod 17 is started to extend or shorten, which can adjust the distance between the two sets of guide clamping rollers 23. Then, the edge of the stretch film is placed between the two guide clamping rollers 23 and clamped by the elastic force of the clamping spring 21. This can guide and flatten the edge of the stretch film during the conveying process, preventing edge wrinkles or deviation.

[0016] like Figure 4 As shown: The outer wall of the guide roller 23 is fixedly fitted with a rubber sleeve 24 to prevent damage to the edge of the biodegradable wrapping film.

[0017] like Figure 3 As shown: The pressure relief mechanism includes several sliding pins 25 that are equally spaced and inserted into the side wall of the adjusting ring 14 and slidably connected thereto. One end of each sliding pin 25 is fixedly connected to the pressure ring plate 15. Several pressure relief springs 26 are fixedly connected between the adjusting ring 14 and the pressure ring plate 15. Each pressure relief spring 26 is sleeved on the outside of a sliding pin 25. When the pressure ring plate 15 presses against the end of the wrapping film, the pressure relief spring 26 is displaced on the adjusting ring 14. The pressure relief spring 26 is compressed and contracts to generate elastic force, which can buffer the pressure of the pressure ring plate 15 on the end of the wrapping film and prevent the end of the wrapping film from being squeezed and deformed.

[0018] like Figure 2 As shown: The inner wall of the concave base plate 2 is fixedly connected with two horizontally symmetrically arranged limiting rods 27. Both limiting rods 27 are set through the two nut blocks 5, so that the nut blocks 5 maintain linear displacement.

[0019] like Figure 1 As shown: A control switch 28 is fixedly connected at the corner of the upper side wall of the base platform 1. The control switch 28 is electrically connected to the adjustable centering mechanism, the anti-slip limit mechanism and the edge guide mechanism. It is easy to operate and is powered by an external power source. The circuit involved is existing technology and can be fully implemented by those skilled in the art, so there is no need to elaborate.

[0020] Working principle: When it is necessary to install and fix the film roller 8, the first motor 3 is started, which drives the bidirectional lead screw 4 to rotate. Since the bidirectional lead screw 4 is threadedly connected to two nut blocks 5 respectively, the two nut blocks 5 are displaced in opposite directions, which can drive the two vertical plates 6 to displace in opposite directions, thereby driving the two clamps 7 to move closer to both ends of the film roller 8, until the two ends of the film roller 8 are respectively inserted into the grooves of the two clamps 7, thus completing the installation and fixing of the film roller 8. Installation and disassembly are convenient. Then, the second motor 10 is started to work, which can drive the threaded rod 11 to rotate. Since the threaded rod 11 is threadedly connected to the nut strip 12, the nut strip 12 is forced to move, pushing the adjusting ring 14 fixed to the connecting rod 13 to move, which in turn drives the pressure ring plate 15 to move on the film roller 8 until it is in contact with the end face of the film roll. With the help of the pressure relief mechanism, flexible bonding is achieved, which can effectively limit the axial movement of the film roll. Adjust the distance between the two sets of guide rollers 23 according to the width of the stretch film, and start the electric push rod 17 to extend or shorten. Then, place the edge of the stretch film between the two guide rollers 23 and clamp it with the elastic force of the clamping spring 21. This can guide and flatten the edge of the stretch film during the conveying process, preventing edge wrinkles or deviation.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fixing device for a biodegradable stretch film processing equipment, comprising a base platform (1), a film roller (8), an adjustable centering mechanism, an anti-movement limiting mechanism, and an edge guiding mechanism, characterized in that, The adjustable centering mechanism includes a concave base plate (2) fixed on the upper surface of the base platform (1). A first motor (3) is fixedly connected to one end of the concave base plate (2). The main shaft of the first motor (3) passes through the inner side of the concave base plate (2) and is fixedly connected to a bidirectional lead screw (4). Two symmetrically arranged nut blocks (5) are threaded on the bidirectional lead screw (4). A vertical plate (6) is fixedly connected to each of the two nut blocks (5). A clamp (7) is rotatably connected to the opposite side of the two vertical plates (6) through a rotating part. The two ends of the film roller (8) are respectively inserted into the grooves of the two clamps (7). The anti-slip limiting mechanism includes concave frames (9) symmetrically fixed to the outer walls of two vertical plates (6). A second motor (10) is fixedly connected to the outer wall of each concave frame (9). The main shaft end of the second motor (10) passes through the concave frame (9) and is fixedly connected to a threaded rod (11). A nut strip (12) is threadedly connected to the threaded rod (11). Two symmetrically arranged connecting rods (13) are fixedly connected to one side of the nut strip (12). One end of each of the two connecting rods (13) passes through the vertical plate (6) and is fixedly connected to an adjusting ring (14). The adjusting ring (14) is sleeved on the outside of the film roller (8). A pressure relief mechanism is arranged around the adjusting ring (14) at equal intervals. A pressure ring plate (15) is fixedly connected to the end of the pressure relief mechanism away from the adjusting ring (14).

2. The fixing device for a biodegradable stretch film processing equipment according to claim 1, characterized in that, The edge guiding mechanism includes two fixed frames (16) symmetrically fixed to the front of the two vertical plates (6). The outer walls of the front ends of the two fixed frames (16) are fixedly connected with horizontally arranged electric push rods (17). One end of the electric push rod (17) passes through the fixed frame (16) and is fixedly connected to a groove shell (18). A vertical rod (19) is fixedly connected in the groove shell (18). Two symmetrically arranged sliding sleeves (20) are sleeved on the vertical rod (19). A retaining spring (21) is fixedly connected between the two sliding sleeves (20) and the inner walls of both ends of the groove shell (18). A rotating shaft (22) is installed on one side of each of the two sliding sleeves (20). The two rotating shafts (22) extend to the outside of the groove shell (18) and are rotatably connected to guide rollers (23).

3. The fixing device for a biodegradable wrapping film processing equipment according to claim 2, characterized in that, The outer side wall of the guide roller (23) is fixedly fitted with a rubber sleeve (24).

4. The fixing device for a biodegradable stretch film processing equipment according to claim 1, characterized in that, The pressure relief mechanism includes several sliding pins (25) that are equally spaced and inserted into the side wall of the adjusting ring (14) and slidably connected thereto. One end of each of the sliding pins (25) is fixedly connected to the pressure ring plate (15). Several pressure relief springs (26) are fixedly connected between the adjusting ring (14) and the pressure ring plate (15). Each pressure relief spring (26) is respectively sleeved on the outside of a sliding pin (25).

5. The fixing device for a biodegradable wrapping film processing equipment according to claim 1, characterized in that, The inner wall of the concave base plate (2) is fixedly connected to two symmetrically arranged limiting rods (27), and both limiting rods (27) pass through two nut blocks (5).

6. The fixing device for a biodegradable stretch film processing equipment according to claim 1, characterized in that, A control switch (28) is fixedly connected at the corner of the upper side wall of the base platform (1). The control switch (28) is electrically connected to the adjustable centering mechanism, the anti-slip limit mechanism and the edge guide mechanism.

Images