A film wrapping dispensing mechanism
The feeding roller is quickly disassembled and installed by means of a snap-fit seat and locking hole. Combined with dampers and buffer springs, it ensures stable film feeding, which solves the problem of time-consuming and laborious feeding roller replacement in the existing technology and improves the practicality and stability of film packaging.
Patent Information
- Application Number
- CN202521100415.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-30
AI Technical Summary
The existing film packaging feeding rollers require auxiliary tools for replacement, which is time-consuming, laborious, and impractical.
The structure employs a snap-fit base, locking hole, rotating base, connecting base, and locking rod to enable quick disassembly and installation of the feeding roller, and uses a damper, vertical rod, buffer spring, and pressure roller to ensure the stability of the film during the feeding process.
It enables quick replacement of the feed rollers and stable film feeding, avoiding the need for auxiliary tools and improving flexibility and feeding stability.
Smart Images

Figure CN224677417U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of feeding mechanism, and in particular relates to a feeding mechanism for film packaging. Background Technology
[0002] A thin film is a thin, flexible, transparent sheet made of plastics, adhesives, rubber, or other materials. Scientifically, a thin film is a two-dimensional material formed by the deposition of atoms, molecules, or ions onto the surface of a substrate. Examples include optical thin films, composite thin films, and superconducting thin films. Thin films are widely used in industries such as electronics, machinery, and printing.
[0003] After the film feeding mechanism finishes feeding the film, the feeding roller needs to be replaced. Currently, the feeding roller is usually fixed to the feeding mechanism using bolts or other methods. Therefore, when disassembling the feeding roller, auxiliary tools are required, which is not only time-consuming and laborious, but also not very practical and makes it difficult to quickly replace the feeding roller. Utility Model Content
[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a feeding mechanism for film packaging, which can effectively solve the problems of the prior art.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a feeding mechanism for film packaging, including a machine body, a fixed frame fixed to the front end of one side of the machine body, a first motor fixed to the top of the fixed frame, and a screw connected to the output end of the first motor. It also includes: a threaded sleeve fitted on the outer surface of the screw, a guide block fixed on the side wall of the threaded sleeve, a snap-fit seat fixed on one end of the threaded sleeve, an annular groove on the inner side wall of the snap-fit seat, a locking hole on the outer side wall of the snap-fit seat, a rotating seat rotatably connected to the inner center of the snap-fit seat, a snap-fit groove on the side wall of the rotating seat, a connecting seat distributed at the end of the snap-fit seat away from the threaded sleeve, a feeding roller rotatably connected to the other end of the connecting seat, a snap-fit block fixed at the end of the connecting seat away from the feeding roller, a protrusion fixed on the side wall of the connecting seat, a return spring fixedly connected to the inner side of the connecting seat, a locking rod fixedly connected to the other end of the return spring, and an auxiliary sliding plate fitted on the outer side of one end of the locking rod.
[0006] Furthermore, a damper is fixedly provided on one side of the top of the machine body, and the output end of the damper is connected to a lifting seat. A vertical rod is fixedly provided on one side of the top of the lifting seat, and a buffer spring is sleeved on the outer surface of the vertical rod. A linkage rod is rotatably connected to one side of the bottom of the lifting seat, and a lower pressure roller is rotatably connected to the other end of the linkage rod.
[0007] Furthermore, a second motor is fixedly installed on the front end of the machine body away from the fixed frame, and the output end of the second motor is connected to a transmission roller. An auxiliary roller is distributed on one side of the transmission roller, and a tension roller is distributed on the side of the auxiliary roller away from the transmission roller.
[0008] Furthermore, the inner side of the threaded sleeve has a hole with a diameter that matches the outer diameter of the screw, and the guide blocks are symmetrically distributed along the vertical center line of the threaded sleeve.
[0009] Furthermore, the rotating seat is rotatably connected to the snap-fit seat via a bearing seat, and the snap-fit slot and the rotating seat form an integrated structure.
[0010] Furthermore, the locking rod is slidably connected to the connecting seat via a return spring, and the outer diameter of the locking rod is adapted to the inner diameter of the lock hole.
[0011] This utility model has the following beneficial effects: This utility model, through its designed snap-fit seat, locking hole, rotating seat, connecting seat, and locking rod, facilitates the quick disassembly and installation of the feeding roller. Compared with the existing method of fixing with bolts, it is not only more convenient but also more flexible overall, eliminating the need for auxiliary tools to disassemble the feeding roller. This invention, through the design of dampers, vertical rods, buffer springs, and pressure rollers, facilitates the subsequent feeding of film using feed rollers. The pressure rollers on both sides assist in pressing down the film during feeding, thereby preventing positional shifts and ensuring the stability of the film during feeding. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a cross-sectional schematic diagram of the present invention; Figure 4 This is a side view of the card holder of this utility model; Figure 5 This is a schematic cross-sectional view of the connector of this utility model; Figure 6 This is a side view of the connector of this utility model.
[0014] The attached diagram lists the components represented by each number as follows: 1. Machine body; 2. Fixed frame; 3. First motor; 4. Screw; 5. Threaded sleeve; 6. Guide block; 7. Snap-fit seat; 8. Annular groove; 9. Locking hole; 10. Rotating seat; 11. Snap-fit groove; 12. Connecting seat; 13. Feeding roller; 14. Snap-fit block; 15. Protrusion; 16. Return spring; 17. Locking rod; 18. Auxiliary slide plate; 19. Damper; 20. Lifting seat; 21. Vertical rod; 22. Buffer spring; 23. Linkage rod; 24. Lower pressure roller; 25. Second motor; 26. Transmission roller; 27. Auxiliary roller; 28. Tensioning roller. Detailed Implementation
[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0016] Please see Figure 1-6 As shown, this utility model is a feeding mechanism for film packaging, including a machine body 1, a fixed frame 2 fixed to the front end of one side of the machine body 1, a first motor 3 fixed to the top of the fixed frame 2, and a screw 4 connected to the output end of the first motor 3. It also includes: a threaded sleeve 5 fitted on the outer surface of the screw 4; a hole with a diameter matching the screw 4 is opened on the inner side of the threaded sleeve 5, and the threaded sleeve 5 and the screw 4 form a threaded connection; a guide block 6 is fixedly provided on the side wall of the threaded sleeve 5; a snap-fit seat 7 is fixedly provided at one end of the threaded sleeve 5; an annular groove 8 is opened on the inner side wall of the snap-fit seat 7; a locking hole 9 is opened on the outer side wall of the snap-fit seat 7; a rotating seat 10 is rotatably connected to the middle of the inner side of the snap-fit seat 7; a slot 11 is opened on the side wall of the rotating seat 10; the rotating seat 10 and the snap-fit seat 7 form a rotatable connection; and a diaphragm at one end of the snap-fit seat 7 has a diameter... The opening is adapted to the size of the connecting seat 12. The connecting seat 12 is distributed at the end of the snap-fit seat 7 away from the threaded sleeve 5, and the other end of the connecting seat 12 is rotatably connected to the feeding roller 13. The feeding roller 13 and the connecting seat 12 are rotatably connected. The connecting seat 12 is fixedly provided with a locking block 14 at the end away from the feeding roller 13. The side wall of the connecting seat 12 is fixedly provided with a protrusion 15. The inner side of the connecting seat 12 is fixedly connected with a return spring 16, and the other end of the return spring 16 is fixedly connected with a locking rod 17. The size of the locking rod 17 is adapted to the size of the locking hole 9. An auxiliary sliding plate 18 is sleeved on the outer side of one end of the locking rod 17. During operation, when the film on the surface of the feeding roller 13 has finished feeding and needs to be replaced, the first motor 3 rotates the screw 4 connected to its output end. The rotation of the screw 4 then drives the threaded sleeve 5, which is threaded to its outer surface, to move longitudinally. The longitudinal movement of the threaded sleeve 5 then drives the guide block 6 to slide along the grooves on both sides of the fixed frame 2, thereby improving the stability of the threaded sleeve 5 during its longitudinal movement. When the longitudinal movement of the threaded sleeve 5 moves the locking seat 7 to the appropriate position, it presses the locking rod 17 and causes the locking rod 17 to move laterally away from the inside of the locking hole 9. When the locking rod 17 is completely away from the inside of the locking hole 9, it presses the return spring 16 and retracts to the inside of the protrusion 15. Simultaneously, the auxiliary sliding plate... 18 will also move accordingly to improve the stability of the locking rod 17 during movement. The deformation of the return spring 16 generates a reverse force to facilitate the subsequent rebound of the locking rod 17. Then, the connecting seat 12 is rotated, and the connecting seat 12 drives the rotating seat 10 to move accordingly. The connecting seat 12 drives the protrusion 15 to move along the annular groove 8 opened on the inner side wall of the snap-fit seat 7. When the protrusion 15 moves to the opposite position of the locking hole 9, the movement of the connecting seat 12 stops. At this time, the connecting seat 12 is pulled out, causing it to drive the snap-fit block 14 to disengage from the inner side of the snap-fit groove 11. This allows the two connecting seats 12 to be separated from the snap-fit seat 7, which facilitates the quick disassembly of the feeding roller 13 and the quick replacement of the feeding roller 13.
[0017] A damper 19 is fixedly installed on one side of the top of the machine body 1, and the output end of the damper 19 is connected to a lifting seat 20. A vertical rod 21 is fixedly installed on one side of the top of the lifting seat 20, and a buffer spring 22 is sleeved on the outer surface of the vertical rod 21. The two ends of the buffer spring 22 are respectively fixedly connected to one side of the top of the machine body 1 and the lower surface of the protrusion at the top of the vertical rod 21. A linkage rod 23 is rotatably connected to one side of the bottom of the lifting seat 20. A shaft passes through the middle of the end of the linkage rod 23 away from the lower pressure roller 24, and the linkage rod 23 is rotatably connected to the lifting seat 20 through the shaft. The other end of the linkage rod 23 is rotatably connected to the lower pressure roller 24. The lower pressure roller 24 and the linkage rod 23 are rotatably connected through a bearing seat. During operation, when the feeding roller 13 is installed and moved to its high position, the film wrapped around the surface of the feeding roller 13 longitudinally pushes the symmetrically arranged lower pressure rollers 24 on both sides. Then, the lower pressure rollers 24 drive the linkage rod 23 to move accordingly. At this time, the other end of the linkage rod 23 rotates around the lifting seat 20 through the shaft, and the torsion spring is deformed. The reverse force generated by the deformation of the torsion spring allows the linkage rod 23 to drive the lower pressure rollers 24 to better limit the film and prevent the film from being obstructed during subsequent conveying and unloading. Excessive rotation speed of roller 13 can cause the film to shift in position, affecting subsequent normal feeding. At the same time, when the lifting seat 20 is subjected to longitudinal force, it will push the damper 19 longitudinally, causing the damper 19 to deform. Meanwhile, the vertical rod 21 moves along the hole on one side of the top of the machine body 1, and drives the buffer spring 22 to deform and generate a reverse force. In combination with the damper 19 and the buffer spring 22, the lifting seat 20 can better drive the lower pressure roller 24 to contact the film and press it down to limit its movement.
[0018] A second motor 25 is fixedly installed on the front end of the machine body 1 away from the fixed frame 2, and the output end of the second motor 25 is connected to a transmission roller 26. An auxiliary roller 27 is distributed on one side of the transmission roller 26, and a tension roller 28 is distributed on the side of the auxiliary roller 27 away from the transmission roller 26. An auxiliary roller 27 is provided on both sides of the tension roller 28, and the auxiliary roller 27 is rotatably connected to the machine body 1 through a bearing seat. During operation, when the film needs to be unloaded, the film covered by the feeding roller 13 passes sequentially through the auxiliary roller 27, tension roller 28, auxiliary rollers 27 distributed on both sides of the tension roller 28, and transmission roller 26 on the side of the auxiliary roller 27 away from the tension roller 28. Then, the second motor 25 is used to rotate the transmission roller 26 connected to its output end, thereby using the rotating transmission roller 26 to achieve the lateral conveying of the film and realize the purpose of unloading.
[0019] The inner side of the threaded sleeve 5 has a hole with a diameter that matches the outer diameter of the screw 4, and the guide blocks 6 are symmetrically distributed along the vertical center line of the threaded sleeve 5. During operation, when the screw 4 rotates under the action of the first motor 3, the threaded connection between the screw 4 and the threaded sleeve 5 can facilitate subsequent operations.
[0020] The rotating seat 10 is rotatably connected to the snap-fit seat 7 via a bearing seat, and the snap-fit groove 11 and the rotating seat 10 form an integrated structure; During operation, since the rotating seat 10 and the locking seat 7 form a rotatable connection, when the locking block 14 is inserted into the inner side of the locking slot 11, the rotating seat 10 is rotated through the connecting seat 12, thereby moving the position of the locking rod 17 to one side of the locking hole 9.
[0021] The locking rod 17 is slidably connected to the connecting seat 12 via the return spring 16, and the outer diameter of the locking rod 17 is adapted to the inner diameter of the lock hole 9; During operation, the reverse force generated by the deformation of the return spring 16 will push the locking rod 17, thereby inserting one end of the locking rod 17 into the inside of the lock hole 9, which facilitates the subsequent positioning of the connecting seat 12.
[0022] Working principle: When film feeding is required, the feeding roller 13 is connected to the clamping seat 7 via the connecting seat 12. Once the feeding roller 13 is installed and moved to a high position, the film wrapped around its surface pushes the symmetrically arranged lower pressure rollers 24 longitudinally. The lower pressure rollers 24 then drive the linkage rod 23 to rotate around the lifting seat 20 via a shaft, causing the torsion spring to deform. The reverse force generated by the torsion spring deformation allows the linkage rod 23 to drive the lower pressure rollers 24 to better limit the film's movement. When the lifting seat 20 is subjected to a longitudinal force, it will push the damper 19 longitudinally, causing the damper 19 to deform. At the same time, the vertical rod 21 moves along one side of the top of the machine body 1, and drives the buffer spring 22 to deform accordingly, generating a reverse force. In combination with the setting of the damper 19 and the buffer spring 22, the lifting seat 20 can better drive the lower pressure roller 24 to contact the film and press it down to limit it. The film covered by the film on the feeding roller 13 passes through the auxiliary roller 27, tension roller 28 and tension roller 28 set on one side of the bottom of the feeding roller 13 in sequence. Auxiliary rollers 27 are distributed on both sides of the tension roller 28, and a transmission roller 26 is set on the side of the auxiliary rollers 27 away from the tension roller 28. Then, the second motor 25 is used to rotate the transmission roller 26 connected to its output end, thereby using the rotating transmission roller 26 to achieve the lateral conveying of the film and realize the purpose of feeding. When the film on the surface of the feeding roller 13 has been fed and needs to be replaced, the first motor 3 is used to drive the screw 4 to drive the threaded sleeve 5 to move longitudinally. The longitudinal movement of the threaded sleeve 5 drives the locking seat 7 to move to the appropriate position. After positioning, squeeze the locking rod 17 to disengage it from the inside of the locking hole 9. Then rotate the connecting seat 12 to drive the protrusion 15 to move along the annular groove 8 opened on the inner side wall of the snap-fit seat 7. When the protrusion 15 moves to the opposite position of the locking hole 9, stop the movement of the connecting seat 12. At this time, pull the connecting seat 12 to drive the snap-fit block 14 to disengage from the inside of the snap-fit groove 11. This will separate the connecting seats 12 on both sides from the snap-fit seat 7, making it easier to quickly disassemble the feeding roller 13 and replace it quickly.
[0023] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.
Claims
1. A feeding mechanism for film packaging, comprising a body (1), a fixed frame (2) fixed to the front end of one side of the body (1), a first motor (3) fixed to the top of the fixed frame (2), and a screw (4) connected to the output end of the first motor (3). Its features are, Also includes: A threaded sleeve (5) is fitted on the outer surface of the screw (4). A guide block (6) is fixed on the side wall of the threaded sleeve (5). A snap-fit seat (7) is fixed on one end of the threaded sleeve (5). An annular groove (8) is opened on the inner side wall of the snap-fit seat (7). A locking hole (9) is opened on the outer side wall of the snap-fit seat (7). A rotating seat (10) is rotatably connected to the middle of the inner side of the snap-fit seat (7). A slot (11) is opened on the side wall of the rotating seat (10). A connecting seat (12) is distributed at one end of the snap-fit seat (7) away from the threaded sleeve (5), and a feeding roller (13) is rotatably connected to the other end of the connecting seat (12). A locking block (14) is fixed at one end of the connecting seat (12) away from the feeding roller (13). A protrusion (15) is fixed on the side wall of the connecting seat (12). A return spring (16) is fixedly connected to the inner side of the connecting seat (12), and a locking rod (17) is fixedly connected to the other end of the return spring (16). An auxiliary sliding plate (18) is sleeved on the outer side of one end of the locking rod (17).
2. The feeding mechanism for film packaging according to claim 1, characterized in that, A damper (19) is fixedly provided on one side of the top of the machine body (1), and the output end of the damper (19) is connected to a lifting seat (20). A vertical rod (21) is fixedly provided on one side of the top of the lifting seat (20), and a buffer spring (22) is sleeved on the outer surface of the vertical rod (21). A linkage rod (23) is rotatably connected on one side of the bottom of the lifting seat (20), and a lower pressure roller (24) is rotatably connected to the other end of the linkage rod (23).
3. The feeding mechanism for film packaging according to claim 1, characterized in that, A second motor (25) is fixed on the front end of the machine body (1) away from the fixed frame (2), and the output end of the second motor (25) is connected to a transmission roller (26). An auxiliary roller (27) is distributed on one side of the transmission roller (26), and a tension roller (28) is distributed on the side of the auxiliary roller (27) away from the transmission roller (26).
4. The feeding mechanism for film packaging according to claim 1, characterized in that, The inner side of the threaded sleeve (5) has a hole with a diameter that matches the outer diameter of the screw (4), and the guide block (6) is symmetrically distributed along the vertical center line of the threaded sleeve (5).
5. The feeding mechanism for film packaging according to claim 1, characterized in that, The rotating seat (10) is rotatably connected to the snap-fit seat (7) via a bearing seat, and the snap-fit groove (11) and the rotating seat (10) form an integrated structure.
6. The feeding mechanism for film packaging according to claim 1, characterized in that, The locking rod (17) is slidably connected to the connecting seat (12) through the return spring (16), and the outer diameter of the locking rod (17) is adapted to the inner diameter of the lock hole (9).