Film covering thermal cutting-off equipment of packaging machine
Automatic coating and thermal cutting through the coating thermal cutting equipment of the packaging machine, solving the problem of manual cutting of packaging bags and improving production efficiency and product protection effect.
Patent Information
- Application Number
- CN202521085912.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2035-05-29
AI Technical Summary
In the prior art, adjacent packaging bags need to be manually cut off after packaging film, resulting in a large burden on staff and affecting work efficiency.
A packaging machine is designed to cover thermal cutting equipment, including film supply, transmission, packaging and thermal cutting mechanisms, which can fully wrap and automatically cut the packaging film through automated processes, and heat sealing and cutting of the packaging film is achieved by using heating strips and rebound mechanisms.
Improve packaging production efficiency, reduce manual operation, ensure that the product is protected during transportation and storage, and automatically complete the thermal cutting of the packaging bag.
Smart Images
Figure CN223059317U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of film laminating for packaging machines, and particularly relates to a film laminating and thermal cutting device for a packaging machine. Background Art
[0002] Packaging film laminating, also known as lamination or film pasting, refers to a processing technology in which a plastic film is covered on the surface of printed matter or other packaging materials through a specific process method to form a protective film. Its main purpose is to enhance the performance of packaging materials, protect the contents, and at the same time improve the appearance effect of products;
[0003] Currently, after the product is wrapped with film, it is necessary to heat-seal the four sides of the product. However, after the product is heat-sealed and packaged currently, the packaging bags between two adjacent products are still in a connected state, and it is necessary for workers to manually cut the two packaging bags, which greatly increases the workload of the workers and will greatly affect the work efficiency. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a film laminating and thermal cutting device for a packaging machine to solve the problems existing in the background art.
[0005] To achieve the above technical purpose, the technical solution adopted by the utility model is as follows:
[0006] A film laminating and thermal cutting device for a packaging machine includes a frame. A control board is arranged on the upper side of the frame. A film feeding mechanism is arranged on the side of the frame. A first conveyor belt is arranged on the upper side of the frame. Guide plates are arranged on both sides of the first conveyor belt. A second conveyor belt is arranged on the left side of the first conveyor belt. A working box is slidably assembled up and down on the upper side of the second conveyor belt. A packaging mechanism is arranged on the lower side of the working box. A guiding mechanism is arranged in front of the packaging mechanism. A third conveyor belt is arranged on the side of the second conveyor belt far from the first conveyor belt. There is a gap between the second conveyor belt and the third conveyor belt. A gantry frame connected to the frame is arranged on the upper side of the gap. Mounting plates are symmetrically arranged on the left and right sides under the gantry frame. Two driving mechanisms are assembled on both mounting plates. Fixing plates are connected to the opposite sides of the two driving mechanisms. A thermal cutting mechanism is jointly arranged between the two fixing plates. The thermal cutting mechanism includes two heating pressing strips. A spring-back mechanism is jointly assembled for the two heating pressing strips on the same fixing plate.
[0007] The spring-back mechanism includes four sliding rods. The four sliding rods are divided into two groups and are respectively slidably assembled on the upper and lower sides of the fixing plate. The two sliding rods on the upper and lower sides are respectively connected to the two heating pressing strips. The sliding rods slide through the fixing plate and are assembled with a pressing plate. Springs are assembled on the outer surface of the sliding rods passing through the pressing plate. Blocking components matched with the two springs are arranged on both the upper and lower sides of the fixing plate.
[0008] The blocking component includes a blocking member connected to the mounting plate, and two slide bars on the same side both slide through the blocking member and are equipped with stoppers.
[0009] Both of the two heating bars on the left side are provided with arc-shaped grooves, and the end faces of the two heating bars on the right side are provided with arc-shaped heads that match the arc-shaped grooves.
[0010] A pre-cutting hole mechanism is jointly provided on the opposite sides of the two fixing plates. The pre-cutting hole mechanism includes a heating rack connected to the left fixing plate, a stop bar is provided on the right side of the right fixing plate at a position matching the heating rack, and a number of through holes matching the heating rack are provided on the stop bar.
[0011] The driving mechanism includes a cylinder connected to the mounting plate, and the output end of the cylinder passes through the mounting plate and is connected to the fixing plate.
[0012] The guiding mechanism includes a fixing member provided on the lower side of the working box. Both sides of the fixing member are provided with notches. Rotating shafts are rotatably assembled in the two notches. The lower ends of the two rotating shafts both pass through the fixing member and are equipped with pressing wheels. The outer surfaces of the two pressing wheels are in contact with each other. A first helical gear is assembled on one of the rotating shafts, a second helical gear meshing with the first helical gear is rotatably assembled on the inner wall of the notch, and a motor drivingly connected to the second helical gear is provided on the outside of the fixing member.
[0013] The present utility model has the following technical advantages compared with the prior art:
[0014] This equipment adopts an automated process, including steps such as film feeding, transmission, packaging, and thermal cutting, greatly improving the packaging production efficiency and reducing the need for manual operation. The equipment can ensure that the packaging film completely wraps the product, including the side circumference and the bottom, providing good protection to prevent the product from being damaged during transportation and storage. After the packaging is completed, the packaging bag can be automatically thermally cut without manual cutting by the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings.
[0016] Figure 1 is the structural schematic diagram of the present utility model Figure 1 ;
[0017] Figure 2 is the structural schematic diagram of the present utility model Figure 2 ;
[0018] Figure 3 is Figure 2 the enlarged structural schematic diagram at A in
[0019] Figure 4 is the structural schematic diagram of the present utility model Figure 3 ;
[0020] Figure 5 For Figure 4 The enlarged structural schematic diagram at position B in
[0021] Figure 6 The assembly structural schematic diagram of the mounting plate and the fixing plate of the present utility model.
[0022] The main component symbols are explained as follows:
[0023] Frame 1, control board 101, film feeding mechanism 11, first conveyor belt 12, guide plate 13, second conveyor belt 14, working box 15, encapsulation mechanism 16, third conveyor belt 18, gap 2, gantry 21, mounting plate 22, fixing plate 23, heating strip 24, sliding rod 3, pressing plate 31, spring 32, blocking member 33, stop block 34, arc-shaped groove 35, arc-shaped head 36, heating rack 4, stop bar 41, through hole 42, air cylinder 43, fixing member 5, notch 51, rotating shaft 52, pressing wheel 53, first helical gear 54, second helical gear 55, motor 56. Specific embodiments
[0024] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below with reference to the drawings and embodiments.
[0025] As Figures 1-6 shown, a film covering and thermal cutting device of a packaging machine of the present utility model includes a frame 1, a control board 101 is arranged on the upper side of the frame 1, a film feeding mechanism 11 is arranged on the side of the frame 1, a first conveyor belt 12 is arranged on the upper side of the frame 1, guide plates 13 are arranged on both sides of the first conveyor belt 12, a second conveyor belt 14 is arranged on the left side of the first conveyor belt 12, a working box 15 is slidably assembled up and down on the upper side of the second conveyor belt 14, an encapsulation mechanism 16 is arranged on the lower side of the working box 15, a guiding mechanism is arranged on the front side of the encapsulation mechanism 16, a third conveyor belt 18 is arranged on the side of the second conveyor belt 14 away from the first conveyor belt 12, a gap 2 is arranged between the second conveyor belt 14 and the third conveyor belt 18, a gantry 21 connected to the frame 1 is arranged on the upper side of the gap 2, mounting plates 22 are symmetrically arranged on the left and right sides of the lower side of the gantry 21, driving mechanisms are assembled on both mounting plates 22, fixing plates 23 are connected to the opposite sides of the two driving mechanisms, a thermal cutting mechanism is jointly arranged between the two fixing plates 23, the thermal cutting mechanism includes two heating strips 24, and a spring-back mechanism is jointly assembled on the two heating strips 24 of the same fixing plate 23.
[0026] When the product needs to be film-packed, the staff transports the product to the upper side of the first conveyor belt 12. Under the action of the film supply mechanism 11, the packaging film covers the upper surface of the first conveyor belt 12. Therefore, the product will fall on the upper side of the first conveyor belt 12. Under the action of the two guide plates 13 on both sides, the two ends of the packaging film are located on both sides of the product. Therefore, the side circumference and the bottom of the product can be wrapped. Under the continuous transportation of the first conveyor belt 12, the product and the packaging film are transported to the second conveyor belt 14. When the product and the packaging film are transported to the upper side of the second conveyor belt 14, the two sides of the packaging film are guided into the encapsulation mechanism 16, and the encapsulation mechanism 16 heat-seals the two sides of the packaging film together. Therefore, such a design can complete the wrapping of the upper and lower sides of the product. Then, the second conveyor belt 14 continues to move. When the product and the packaging film are moved to the third conveyor belt 18, they will pass through the gap 2. When one end of the product is located between the two mounting plates 22, the driving mechanism drives the two fixing plates 23 to approach each other. When the two fixing plates 23 approach each other, the two heating pressing strips 24 on both sides will be driven to approach each other until the two corresponding heating pressing strips 24 on both sides press the two sides of the side of the packaging film tightly, and the end faces of the heating pressing strips 24 generate heat to heat-seal the side of the packaging film together. Similarly, after the product continues to move, the packaging film on the other side of the product can be wrapped, and thus the heat-sealing wrapping of the four sides of the product can be completed;
[0027] After the two opposite heating pressing strips 24 come into contact with each other, the two fixing plates 23 on both sides continue to approach each other under the action of the driving mechanism. At this time, the spring-back mechanism starts to contract until the heat-cutting mechanism works on the packaging film, and the already sealed packaging film can be cut off. And the heat-cutting mechanism is between the four heating pressing strips 24. Therefore, when the packaging film is cut off by the heat-cutting mechanism, it will not affect the wrapping of the packaging film.
[0028] The spring-back mechanism includes four sliding rods 3. The four sliding rods 3 are divided into two groups of two and are respectively slidably assembled on the upper and lower sides of the fixing plate 23. The two sliding rods 3 on the upper and lower sides are respectively connected to the two heating pressing strips 24. The sliding rod 3 slidably passes through the fixing plate 23 and is equipped with a pressing plate 31. The sliding rod 3 passes through the outer surface of the pressing plate 31 and is equipped with a spring 32. Blocking components matched with the two springs 32 are arranged on both the upper and lower sides of the fixing plate 23.
[0029] After the heating pressing strips 24 of the two fixing plates 23 approach each other, when the two fixing plates 23 continue to approach, the fixing plate 23 starts to slide relative to the sliding rod 3, so that the heating pressing strip 24 starts to move relative to the fixing plate 23. Since the blocking component blocks the spring 32, the pressing plate 31 compresses the spring 32. When the two fixing plates 23 move away from each other, under the action of the spring 32 stretching, the pressing plate 31 is pushed, so as to drive the sliding rod 3 to move back to its original position, and thus drive the heating pressing strip 24 to return to its original position.
[0030] The blocking assembly includes a blocking member 33 connected to the mounting plate 22. Two sliding rods 3 on the same side both slide through the blocking member 33 and are equipped with stoppers 34. Since the blocking member 33 is connected to the mounting plate 22, the spring 32 can be blocked. The design of the stopper 34 can limit the sliding rod 3 to prevent the sliding rod 3 from detaching from the mounting plate 22.
[0031] Both of the two heating strips 24 on the left side are provided with arc-shaped grooves 35, and the end faces of the two heating strips 24 on the right side are provided with arc-shaped heads 36 that match the arc-shaped grooves 35.
[0032] A pre-cutting hole mechanism is jointly provided on the opposite sides of the two fixing plates 23. The pre-cutting hole mechanism includes a heating rack 4 connected to the left fixing plate 23. A stop bar 41 that matches the position of the heating rack 4 is provided on the right side of the right fixing plate 23, and the stop bar 41 is provided with a number of through holes 42 that match the heating rack 4.
[0033] When the two fixing plates 23 continuously approach each other, the heating rack 4 and the stop bar 41 approach each other. Since the packaging film is located between the heating rack 4 and the stop bar 41, until the heating rack 4 passes through the through holes 42 of the stop bar 41, the heating rack 4 heats up to thermally cut the packaging film, completing the cutting of the packaging bags of two adjacent products.
[0034] The driving mechanism includes a cylinder 43 connected to the mounting plate 22. The output end of the cylinder 43 passes through the mounting plate 22 and is connected to the fixing plate 23. When the two cylinders 43 start to extend and work, they can drive the two fixing plates 23 to approach each other. When the two cylinders 43 start to contract, they drive the two fixing plates 23 to move away from each other.
[0035] The guiding mechanism includes a fixing member 5 provided on the lower side of the working box 15. Both sides of the fixing member 5 are provided with notches 51. Rotating shafts 52 are rotatably assembled in the two notches 51. The lower ends of the two rotating shafts 52 both pass through the fixing member 5 and are equipped with pressing wheels 53. The outer surfaces of the two pressing wheels 53 are in contact with each other. One of the rotating shafts 52 is equipped with a first helical gear 54, and a second helical gear 55 that meshes with the first helical gear 54 is rotatably assembled on the inner wall of the notch 51. A motor 56 that is drivingly connected to the second helical gear 55 is provided on the outside of the fixing member 5.
[0036] When the motor 56 starts to work, it drives the second helical gear 55 to start rotating. Since the second helical gear 55 meshes with the first helical gear 54, the first helical gear 54 can be driven to start rotating. The first helical gear 54 is connected to one of the rotating shafts 52, so one of the rotating shafts 52 can be adjusted to rotate, thereby driving one of the pressing wheels 53 to start rotating. Since the outer surfaces of the two pressing wheels 53 are in contact with each other, the two pressing wheels 53 can rotate simultaneously. Before the upper ends of both sides of the packaging film enter the encapsulation mechanism 16, the upper end of the packaging film can be pressed and guided by the two pressing wheels 53.
[0037] The above embodiments are only used to exemplarily illustrate the principles and effects of the present utility model, rather than to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present utility model should still be covered by the claims of the present utility model.
Claims
1. A film laminating and thermal cutting device for a packaging machine, comprising a frame (1), a control panel (101) is provided on the upper side of the frame (1), a film feeding mechanism (11) is provided on the side of the frame (1), a first conveyor belt (12) is provided on the upper side of the frame (1), guide plates (13) are provided on both sides of the first conveyor belt (12), a second conveyor belt (14) is provided on the left side of the first conveyor belt (12), a working box (15) is slidably assembled up and down on the upper side of the second conveyor belt (14), a packaging mechanism (16) is provided on the lower side of the working box (15), a guiding mechanism is provided on the front side of the packaging mechanism (16), and a third conveyor belt (18) is provided on the side of the second conveyor belt (14) away from the first conveyor belt (12), characterized in that: A gap (2) is provided between the second conveyor belt (14) and the third conveyor belt (18). Above the gap (2), a gantry (21) connected to the frame (1) is provided. On the lower side of the gantry (21), mounting plates (22) are symmetrically arranged on the left and right. Both of the two mounting plates (22) are equipped with driving mechanisms. On the opposite sides of the two driving mechanisms, fixing plates (23) are connected. Between the two fixing plates (23), a thermal cutting mechanism is jointly provided. The thermal cutting mechanism includes two heating strips (24). A rebound mechanism is jointly assembled by the two heating strips (24) on the same fixing plate (23).
2. The film laminating and thermal cutting device of a packaging machine according to claim 1, characterized in that: The rebound mechanism includes four sliding rods (3). The four sliding rods (3) are divided into two groups in pairs and are respectively slidably assembled on the upper and lower sides of the fixing plate (23). The two sliding rods (3) on the upper and lower sides are respectively connected to the two heating strips (24). The sliding rod (3) slidably passes through the fixing plate (23) and is equipped with a pressing plate (31). A spring (32) is assembled on the outer surface of the sliding rod (3) passing through the pressing plate (31). On the upper and lower sides of the fixing plate (23), a blocking component matching the two springs (32) is provided.
3. The film laminating and thermal cutting device of a packaging machine according to claim 2, characterized in that: The blocking component includes a blocking piece (33) connected to the mounting plate (22). The two sliding rods (3) on the same side both slidably pass through the blocking piece (33) and are equipped with a stop block (34).
4. The film laminating and thermal cutting device of a packaging machine according to claim 1, characterized in that: Arc-shaped grooves (35) are provided on both of the left heating strips (24). Arc-shaped heads (36) matching the arc-shaped grooves (35) are provided on the end faces of the two right heating strips (24).
5. The film laminating and thermal cutting device of a packaging machine according to claim 1, wherein: A pre-cutting hole mechanism is jointly provided on the opposite sides of the two fixing plates (23). The pre-cutting hole mechanism includes a heating rack (4) connected to the left fixing plate (23). A stop bar (41) matching the position of the heating rack (4) is provided on the right side of the right fixing plate (23). The stop bar (41) is provided with a number of through holes (42) matching the heating rack (4).
6. The film laminating and thermal cutting device of a packaging machine according to claim 1, characterized in that: The driving mechanism includes a cylinder (43) connected to the mounting plate (22). The output end of the cylinder (43) passes through the mounting plate (22) and is connected to the fixing plate (23).
7. The film laminating and thermal cutting device of a packaging machine according to claim 1, characterized in that: The guiding mechanism includes a fixing piece (5) provided on the lower side of the working box (15). Notches (51) are provided on both sides of the fixing piece (5). Rotating shafts (52) are rotatably assembled in the two notches (51). The lower ends of the two rotating shafts (52) both pass through the fixing piece (5) and are equipped with pressing wheels (53). The outer surfaces of the two pressing wheels (53) are in mutual contact. A first helical gear (54) is assembled on one of the rotating shafts (52). A second helical gear (55) meshing with the first helical gear (54) is rotatably assembled on the inner wall of the notch (51). A motor (56) drivingly connected to the second helical gear (55) is provided on the outside of the fixing piece (5).