Film breaking mechanism of packaging machine
By designing a film-shredding mechanism on the packaging machine, and using a motor and transmission mechanism to drive guide rollers and cutting blades to cut long strips of waste film, the problem of difficult cutting of long strips of waste film is solved, and efficient recycling of waste film is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO JINGWEIKE ELECTRICAL ENG AUTOMATION CO LTD
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-24
AI Technical Summary
Existing packaging machines have difficulty efficiently cutting long strips of waste film into smaller segments, making recycling difficult.
Design a film-shredding mechanism for a packaging machine, including a motor mechanism, a transmission mechanism, and a guiding film-shredding mechanism. The mechanism uses gears to drive guide rollers and cutting blades to cut long strips of waste film into short sections of waste film, which are easy to recycle.
It enables efficient cutting of long strip-shaped waste film, simplifies the recycling process, and improves the reuse efficiency of waste materials.
Smart Images

Figure CN224159549U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machine technology, specifically to a film-crushing mechanism for a packaging machine. Background Technology
[0002] A packaging machine is a mechanical device used to package products, with main functions including filling, sealing, labeling, and packing. In the actual use of packaging machines for condoms, the waste film generated during previous packaging processes is often in long strips, making it difficult to recycle and reuse. To control costs and recycle waste, our company has added a film-shredding mechanism to the existing packaging machine. This mechanism cuts the long strips of waste film into smaller segments, facilitating recycling. Therefore, how to shred and cut the long strips of waste film into smaller segments is the problem this design aims to solve. Utility Model Content
[0003] The purpose of this utility model is to provide a film-breaking mechanism for a packaging machine, addressing the shortcomings and deficiencies of the existing technology.
[0004] The present invention discloses a film crushing mechanism for a packaging machine, comprising a film crushing mechanism body, which includes a film crushing chamber. A motor mechanism is installed on the left side of the film crushing chamber, a guiding film crushing mechanism is installed inside the film crushing chamber, and a transmission mechanism is installed on the right side of the film crushing chamber. The motor mechanism drives the transmission mechanism to drive the guiding film crushing mechanism. A storage chamber for storing waste edge film after cutting is installed at the bottom of the film crushing chamber.
[0005] Furthermore, the film crushing chamber includes a left plate and a right plate installed on the left and right sides of the top surface of the receiving chamber. A top plate is installed on the upper part of the left and right plates, and a bottom plate is installed between the left and right plates. A back plate is provided at the rear between the left and right plates to form an operating chamber. The front of the operating chamber is open, and an upper baffle and a lower baffle are respectively provided at the top and bottom of the operating chamber, forming an observation window between the upper and lower baffles. A waste edge film inlet is opened in the middle of the surface of the top plate, and a discharge port is opened on the surface of the bottom plate.
[0006] Furthermore, the transmission mechanism includes a first rotating shaft installed at the upper rear end between the left and right plates of the film crushing chamber, a second rotating shaft installed at the front end of the first rotating shaft, a third rotating shaft installed below the first rotating shaft, and a fourth rotating shaft installed at the front end of the third rotating shaft; the first, second, third, and fourth rotating shafts are arranged in a two-row, two-column structure; a transmission bearing is installed at the front end of the middle section between the first and third rotating shafts on the outer side of the right plate;
[0007] A first gear is installed on the shaft end extending from the right plate of the first rotating shaft, and the first gear is connected to the motor mechanism; a second gear that meshes with the first gear is installed on the transmission bearing; a third gear that meshes with the second gear is installed on the shaft end extending from the right plate of the third rotating shaft; and a transmission cover is installed on the right plate.
[0008] Furthermore, the guiding film crushing mechanism includes a first guide roller mounted on a first rotating shaft, with a plurality of cylindrical protrusions arranged around the outer surface of the first guide roller to form a brush guide roller; a second guide roller is mounted on the second rotating shaft, with the cylindrical protrusions on the first guide roller abutting against the outer surface of the second guide roller to form a guiding mechanism for guiding the waste edge film to be crushed.
[0009] A third guide roller is mounted on the third rotating shaft, and several cutting blades are mounted on the outer surface of the third guide roller; a fourth guide roller is mounted on the fourth rotating shaft; the cutting blades on the third guide roller abut against the fourth guide roller to form a film-shredding mechanism.
[0010] Furthermore, the motor mechanism includes a motor mounted on the left plate, a reducer mounted on the motor, and the motor shaft connected to the first rotating shaft to drive the first rotating shaft to rotate.
[0011] Furthermore, the waste edge film inlet is a circular opening, the diameter of which is greater than the width of the waste edge film.
[0012] Furthermore, the shape of the discharge port is circular or square.
[0013] The beneficial effects of this utility model after adopting the above structure are as follows: The packaging machine film crushing mechanism of this utility model feeds the long strip of waste film into the device through the feed inlet. The long strip of packaging waste is conveyed downward by the rotation of the brush guide roller and the friction between the brush guide roller and the second guide roller. The gear drives the cutter on the third guide roller to rotate, and the rotation of the cutter and the slow rotation of the fourth gear collide to crush the long strip of packaging film, turning the long strip of waste film into segmented waste film material, which is convenient for waste collection and recycling. Attached Figure Description
[0014] The accompanying drawings, which are provided to further illustrate the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings:
[0015] Figure 1 This is a top view of the structure of this utility model;
[0016] Figure 2 This is a structural schematic diagram of the present invention viewed from below;
[0017] Figure 3 This is a schematic diagram of the transmission mechanism and the guiding film breaking mechanism in this utility model;
[0018] Figure 4 This is a schematic diagram of the gear meshing state of the transmission mechanism in this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Film crushing mechanism body; 2. Motor mechanism; 3. Film crushing chamber; 4. Transmission mechanism; 5. Film crushing guide mechanism; 6. Storage chamber. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] like Figures 1-2 As shown in the figure, the packaging machine film crushing mechanism of this specific embodiment includes a film crushing mechanism body 1, which includes a film crushing chamber 3. A motor mechanism 2 is installed on the left side of the film crushing chamber 3, and a guiding film crushing mechanism 5 is installed inside the film crushing chamber 3. A transmission mechanism 4 is installed on the right side of the film crushing chamber 3. The motor mechanism 2 drives the transmission mechanism 4 to drive the guiding film crushing mechanism 5 to move. A storage chamber 6 for storing the cut waste edge film is installed at the bottom of the film crushing chamber 3.
[0024] Furthermore, such as Figure 1 As shown, the film crushing chamber 3 includes a left plate 31 and a right plate 32 installed on the left and right sides of the top surface of the receiving chamber 6. A top plate 33 is installed on the upper part of the left plate 31 and the right plate 32, and a bottom plate 35 is installed between the left plate 31 and the right plate 32. A back plate is provided at the rear between the left plate 31 and the right plate 32 to form an operating chamber. The front of the operating chamber is open. An upper baffle and a lower baffle are provided at the top and bottom of the operating chamber, respectively, and an observation window is formed between the upper baffle and the lower baffle. A waste edge film inlet 34 is opened in the middle of the surface of the top plate 33. A discharge port 36 is opened on the surface of the bottom plate 35.
[0025] In this design, the front of the operating chamber is open and equipped with an observation window, allowing the operator to easily observe the working status of the guiding film crushing mechanism 5. The top and bottom of the operating chamber are respectively equipped with an upper baffle and a lower baffle. The upper baffle effectively blocks long strips of waste film during feeding, acting as a barrier. The lower baffle ensures that short waste film after crushing does not "splash" into the operating chamber during the crushing process, acting as a limiter and guiding the short waste film after crushing to the collection chamber 6 through the discharge port 36.
[0026] In this design, the bottom of the storage chamber 6 is provided with a material guide opening 61. An opening cover can be installed on the material guide opening 61 (the opening cover can be hinged to one end of the material guide opening 61, and the opening cover and the material guide opening 61 can be connected by a snap-fit mechanism; a sealing strip can be installed on the material guide opening 61 to ensure that the short waste film does not fall out). This makes it convenient to open the opening cover so that the short waste film after being broken in the storage chamber 6 can be guided into the storage box for centralized storage and recycling.
[0027] Furthermore, such as Figure 3 , Figure 4 The transmission mechanism 4 shown includes a first rotating shaft 44 installed at the upper rear end between the left plate 31 and the right plate 32 of the film crushing chamber 3. A second rotating shaft 45 is installed at the front end of the first rotating shaft 44, a third rotating shaft 46 is installed below the first rotating shaft 44, and a fourth rotating shaft 47 is installed at the front end of the third rotating shaft 46. The first rotating shaft 44, the second rotating shaft 45, the third rotating shaft 46, and the fourth rotating shaft 47 are arranged in a two-row, two-column structure. A transmission bearing 48 is installed at the front end of the middle section between the first rotating shaft 44 and the third rotating shaft 46 on the outer side of the right plate 32.
[0028] A first gear 41 is installed on the shaft end of the first rotating shaft 44 extending out of the right plate 32, and the first gear 41 is connected to the motor mechanism 2; a second gear 42 that meshes with the first gear 41 is installed on the transmission bearing 48; a third gear 43 that meshes with the second gear 42 is installed on the shaft end of the third rotating shaft 46 extending out of the right plate 32; and a transmission cover 49 is installed on the right plate 32.
[0029] Furthermore, the guiding film crushing mechanism 5 includes a first guide roller 51 mounted on a first rotating shaft 44, and a plurality of cylindrical protrusions are provided around the outer surface of the first guide roller 51 to form a brush guide roller; a second guide roller 52 is mounted on the second rotating shaft 45, and the cylindrical protrusions on the first guide roller 51 abut against the outer surface of the second guide roller 52 to form a guiding mechanism for guiding the waste edge film to be crushed.
[0030] A third guide roller 53 is mounted on the third rotating shaft 46, and a plurality of cutting blades are mounted on the outer surface of the third guide roller 53; a fourth guide roller 54 is mounted on the fourth rotating shaft 47; the cutting blades on the third guide roller 53 abut against the fourth guide roller 54 to form a film-crushing mechanism.
[0031] Furthermore, such as Figure 1 , Figure 2 As shown, the motor mechanism 2 includes a motor 21 mounted on the left plate 31, a reducer 22 mounted on the motor 21, and the motor shaft of the motor 21 is connected to the first rotating shaft 44 to drive the first rotating shaft 44 to rotate.
[0032] Furthermore, the waste edge film inlet 34 is a circular opening, the diameter of which is greater than the width of the waste edge film.
[0033] Furthermore, the discharge port 36 is circular or square in shape.
[0034] The working principle of this utility model is as follows:
[0035] In this design, the film crushing chamber 3 includes a left plate 31 and a right plate 32 installed on the left and right sides of the top surface of the storage chamber 6. A top plate 33 is installed on the upper part of the left plate 31 and the right plate 32, and a bottom plate 35 is installed between the left plate 31 and the right plate 32. A back plate is provided at the rear between the left plate 31 and the right plate 32 to form an operating compartment.
[0036] In this design, the left plate 31 has a motor through hole corresponding to the motor shaft. The motor shaft passes through the motor through hole and is connected to the first rotating shaft 44 via a coupling.
[0037] In this design, shaft holes are provided at the corresponding positions of the first rotating shaft 44, the third rotating shaft 46, and the transmission bearing 48 on the right plate 32, so as to facilitate key connection with the first gear, the second gear, and the third gear installed on the outer side of the right plate 32.
[0038] In this design, bearings are installed at both ends of the first rotating shaft 44, the second rotating shaft 45, the third rotating shaft 46, and the fourth rotating shaft 47, and several bearings are installed on the inner walls of the left and right plates respectively.
[0039] When in use, the motor 21 and the reducer 22 work to drive the first rotating shaft 44 connected to them to rotate. The first rotating shaft 44 drives the first gear to rotate, which in turn drives the first guide roller 51 installed on the first rotating shaft 44 to rotate.
[0040] At this time, the long strip of waste film to be cut is introduced into the waste film inlet 34. When the waste film to be processed is between the first guide roller 51 and the second guide roller, the cylindrical protrusion on the first guide roller 51 abuts against the outer surface of the second guide roller 52, forming a guiding friction to move downward.
[0041] The rotation of the first gear drives the rotation of the second gear meshing with it. The second gear meshes with the third gear, driving the third gear to rotate. The third gear drives the third shaft to rotate, and the third shaft drives the third guide roller mounted on it to rotate. The cutting blade on the third guide roller 53 abuts against the fourth guide roller 54. When the waste edge film to be cut reaches between the third guide roller 53 and the fourth guide roller, the cutting blade on the third guide roller 53 cuts the waste edge film, forming fragments and cutting several short waste edge films.
[0042] The cut short waste film is now discharged into the collection chamber 6 through the discharge port 36 on the bottom plate. The bottom end of the collection chamber 6 is provided with a guide opening 61, which facilitates the discharge, centralized collection and reuse.
[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A film-crushing mechanism for a packaging machine, characterized in that: The device includes a film-shredding mechanism body, which includes a film-shredding chamber. A motor mechanism is installed on the left side of the film-shredding chamber, and a guiding film-shredding mechanism is installed inside the film-shredding chamber. A transmission mechanism is installed on the right side of the film-shredding chamber. The motor mechanism drives the transmission mechanism to drive the guiding film-shredding mechanism. A storage chamber for storing waste edge film after cutting is installed at the bottom of the film-shredding chamber.
2. The film-shredding mechanism of a packaging machine according to claim 1, characterized in that: The film crushing chamber includes a left plate and a right plate installed on the left and right sides of the top surface of the receiving chamber. A top plate is installed on the upper part of the left and right plates, and a bottom plate is installed between the left and right plates. A back plate is provided at the rear between the left and right plates to form an operating chamber. The front of the operating chamber is open. An upper baffle and a lower baffle are respectively provided at the top and bottom of the operating chamber, and an observation window is formed between the upper and lower baffles. A waste edge film inlet is opened in the middle of the surface of the top plate. A discharge port is opened on the surface of the bottom plate.
3. The film-crushing mechanism of a packaging machine according to claim 1, characterized in that: The transmission mechanism includes a first rotating shaft installed at the upper rear end between the left and right plates of the film crushing chamber, a second rotating shaft installed at the front end of the first rotating shaft, a third rotating shaft installed below the first rotating shaft, and a fourth rotating shaft installed at the front end of the third rotating shaft; the first, second, third, and fourth rotating shafts are arranged in a two-row, two-column structure; a transmission bearing is installed at the front end of the middle section between the first and third rotating shafts on the outer side of the right plate; A first gear is installed on the shaft end of the first rotating shaft extending out of the right plate, and the first gear is connected to the motor mechanism; a second gear that meshes with the first gear is installed on the transmission bearing; a third gear that meshes with the second gear is installed on the shaft end of the third rotating shaft extending out of the right plate; and a transmission cover is installed on the right plate.
4. The film-shredding mechanism of a packaging machine according to claim 3, characterized in that: The guiding film crushing mechanism includes a first guide roller mounted on a first rotating shaft, with a plurality of cylindrical protrusions arranged around the outer surface of the first guide roller; a second guide roller is mounted on the second rotating shaft, and the cylindrical protrusions on the first guide roller abut against the outer surface of the second guide roller, forming a guiding mechanism for guiding the waste edge film to be crushed. A third guide roller is mounted on the third rotating shaft, and several cutting blades are mounted on the outer surface of the third guide roller; a fourth guide roller is mounted on the fourth rotating shaft; the cutting blades on the third guide roller abut against the fourth guide roller to form a film-shredding mechanism.
5. The film-crushing mechanism of a packaging machine according to claim 2, characterized in that: The motor mechanism includes a motor mounted on the left plate, a reducer mounted on the motor, and the motor shaft connected to a first rotating shaft to drive the first rotating shaft to rotate.
6. The film-crushing mechanism of a packaging machine according to claim 1, characterized in that: The waste edge film inlet is a circular opening, the diameter of which is greater than the width of the waste edge film.
7. The film-crushing mechanism of a packaging machine according to claim 2, characterized in that: The discharge port is circular or square in shape.