Plastic film cutting device facilitating feeding

Abstract

The utility model discloses a plastic film cutting device convenient to feed, it includes cutting machine frame, cutting knife rest and cutting table, two cutting machine frame between the main conveying belt inside fixed cutting table, the cutting machine frame inside symmetry is provided with main conveying belt, the utility model discloses through the clamping type conveying structure of cutting both sides, can through the mode of cooperation of main transmission belt and vice conveying belt after cutting is completed, clamping film feed, guarantee the stability of feeding, and vice conveying belt is located film both sides, also can guarantee that film keeps flat, and the cleaning component of loading end can clean main conveying belt in time, avoids the influence cutting because of the impurity that sticks on main conveying belt, solves the problem that the current plastic film cutting device is not stable accurate when loading, greatly improves the accuracy of cutting device cutting, also makes the cutting process operation more stable.

Description

Technical Field

[0001] This utility model relates to the field of plastic film cutting technology, and in particular to a plastic film cutting device that facilitates feeding. Background Technology

[0002] Plastic film is a thin film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It has excellent chemical stability, heat-sealing and moisture-proof properties, and is widely used in many fields such as industry, agriculture, food, and daily necessities. When plastic film is used as packaging, it needs to be quantitatively cut according to the size of the product to be packaged.

[0003] Existing plastic film cutting devices use a conveyor belt to transport the plastic film to the cutting structure during cutting. However, due to the light weight of the plastic film, the conveyor belt at the feeding end cannot reliably transport the plastic film after cutting, thus affecting the stability of the feeding of the cutting device. Furthermore, the unwinding and pushing mechanism makes it difficult to control the feeding accuracy. Therefore, we propose a plastic film cutting device that facilitates feeding. Utility Model Content

[0004] The problem this invention aims to solve is that the feeding of plastic film cutting devices in the prior art is not stable or accurate enough.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a plastic film cutting device for easy feeding, comprising a cutting frame, a cutting blade holder, and a cutting table. The cutting table is fixed inside the cutting frame between the two main conveyor belts. The main conveyor belts are symmetrically arranged inside the cutting frame. A secondary conveyor belt is arranged above the connection points between the cutting table and the main conveyor belts on both sides. The bottom surface of the secondary conveyor belt is in contact with the top surface of the cutting table and the main conveyor belt. The secondary conveyor belt moves relative to the main conveyor belt. Belt rollers are symmetrically sleeved at both ends inside the two main conveyor belts and the secondary conveyor belts. Each belt roller is rotatably connected inside the cutting frame. A cleaning component is provided at the feeding end of the main conveyor belt.

[0006] As a preferred embodiment of the plastic film cutting device for easy feeding described in this utility model, a dust cover is fixed to the edge of the cutting frame on the feeding side of the main conveyor belt, a support plate is fixed inside the cutting frame inside the main conveyor belt, the top surface of the support plate is in contact with the top surface inside the main conveyor belt, a feeding groove is opened inside the dust cover at the feeding end of the main conveyor belt, and the dust covers on both sides of the feeding groove are both set to arc shape.

[0007] As a preferred embodiment of the plastic film cutting device for easy feeding described in this utility model, the cleaning component includes a bellows, a dust collector, a cleaning brush, and a filter screen. The bellows is installed on the bottom surface of the cutting frame on the side of the dust cover. The dust collector is inserted into the top surface of the bellows. A cleaning brush is fixed in the middle of the inner side of the dust collector. The top surface of the cleaning brush is in contact with the bottom surface of the main conveyor belt. A filter screen is fixed on the bottom surface of the dust collector.

[0008] As a preferred embodiment of the plastic film cutting device for easy feeding described in this utility model, a servo motor is provided on the cutting frame outside one end of the belt roller. The output end of the servo motor rotates through the cutting frame and is fixedly connected to the belt roller. The belt rollers at opposite ends of the two main conveyor belts extend to the outside of the cutting frame and are fixed with pulleys. A conveyor belt is sleeved between the two pulleys.

[0009] As a preferred embodiment of the plastic film cutting device for easy feeding described in this utility model, wherein: the belt rollers at the opposite ends of the two auxiliary conveyor belts extend to the outside of the cutting frame and are fixed with another pulley, another conveyor belt is sleeved between the two other pulleys, and gears are fixed to the outer ends of one of the pulleys and the other pulley, and the two gears are meshed and connected.

[0010] As a preferred embodiment of the plastic film cutting device for easy feeding described in this utility model, the dust removal box is connected to the inside of the air box through a filter screen, the air inlets of the two fans in the air box are facing the filter screen, and the air outlet of the air box is far away from the main conveyor belt.

[0011] As a preferred embodiment of the plastic film cutting device for easy feeding described in this utility model, a magnetic plate is fixed at the center of the bottom surface of the dust removal box away from the feeding trough, and an iron sheet is embedded and fixed inside the air box below the magnetic plate for fixing the dust removal box.

[0012] The beneficial effects of this utility model are as follows: Through the clamping conveyor structure on both sides of the cutting point, after cutting, the film can be clamped and fed by the main conveyor belt and the auxiliary conveyor belt in combination, ensuring the stability of the feeding. The auxiliary conveyor belt is located on both sides of the film, which can also ensure that the film is kept flat. The cleaning component at the feeding end can clean the main conveyor belt in time, avoiding the impact of impurities on the main conveyor belt on the cutting. This solves the problem of unstable and inaccurate feeding in existing plastic film cutting devices, greatly improves the cutting accuracy of the cutting device, and also makes the cutting process more stable. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them: Figure 1 This is an overall structural diagram of a plastic film cutting device that facilitates feeding.

[0014] Figure 2 This is a bottom view of the overall structure of a plastic film cutting device that facilitates feeding.

[0015] Figure 3 This is a partial structural diagram of a plastic film cutting device that facilitates feeding.

[0016] Figure 4 This is a structural diagram of the main conveyor belt of a plastic film cutting device that facilitates feeding.

[0017] Figure 5 This is a structural diagram of the dust collection box of a plastic film cutting device that facilitates feeding. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Reference Figures 1-5 This embodiment is a plastic film cutting device that facilitates feeding, including a cutting frame 1, a cutting blade holder 3, and a cutting table 5. The cutting table 5 is fixed inside the cutting frame 1 between two main conveyor belts 2. The main conveyor belts 2 are symmetrically arranged inside the cutting frame 1. A secondary conveyor belt 6 is arranged above the connection between the cutting table 5 and the main conveyor belt 2 on both sides. The bottom surface of the secondary conveyor belt 6 is in contact with the top surface of the cutting table 5 and the main conveyor belt 2. The secondary conveyor belt 6 moves relative to the main conveyor belt 2. Belt rollers 10 are symmetrically sleeved at both ends inside the two main conveyor belts 2 and the secondary conveyor belt 6. Each belt roller 10 is rotatably connected inside the cutting frame 1. A cleaning component is provided at the feeding end of the main conveyor belt 2.

[0020] In this embodiment, a dust cover 11 is fixed to the edge of the cutting frame 1 on the feeding side of the main conveyor belt 2. A support plate 18 is fixed inside the cutting frame 1 inside the main conveyor belt 2. The top surface of the support plate 18 is in contact with the top surface inside the main conveyor belt 2. A feeding groove 12 is opened inside the dust cover 11 at the feeding end of the main conveyor belt 2. The dust covers 11 on both sides of the feeding groove 12 are set to be arc-shaped. The dust cover 11 prevents dust or debris from falling on the unfolded plastic film surface.

[0021] In this embodiment, the cleaning assembly includes a bellows 13, a dust collection box 14, a cleaning brush 15, and a filter screen 16. The bellows 13 is installed on the bottom surface of the cutting frame 1 on the side of the dust cover 11. The dust collection box 14 is inserted into the top surface of the bellows 13. The cleaning brush 15 is fixed in the middle of the inner side of the dust collection box 14. The top surface of the cleaning brush 15 is in contact with the bottom surface of the main conveyor belt 2. The filter screen 16 is fixed on the bottom surface of the dust collection box 14 to remove dust from the surface of the main conveyor belt 2 and prevent dust from the surface of the main conveyor belt 2 from affecting the cutting.

[0022] In this embodiment, a servo motor 4 is provided on the cutting frame 1 outside one end of the belt roller 10. The output end of the servo motor 4 rotates through the cutting frame 1 and is fixedly connected to the belt roller 10. The belt rollers 10 at opposite ends of the two main conveyor belts 2 extend to the outside of the cutting frame 1 and are fixed with pulleys 7. A conveyor belt 8 is sleeved between the two pulleys 7. The main conveyor belt 2 is driven to move or stop synchronously through the servo motor 4, the pulleys 7 and the conveyor belt 8.

[0023] In this embodiment, the belt rollers 10 at opposite ends of the two auxiliary conveyor belts 6 extend to the outside of the cutting frame 1 and are fixed with another pulley 7. Another conveyor belt 8 is sleeved between the two other pulleys 7. Gears 9 are fixed at the outer ends of one pulley 7 and the other pulley 7. The two gears 9 are meshed and connected. When the main conveyor belt 2 is running, the auxiliary conveyor belt 6 moves in the opposite direction to the main conveyor belt 2 through the gears 9, the other pulley 7 and the other conveyor belt 8. In this way, the auxiliary conveyor belt 6 and the main conveyor belt 2 cooperate vertically to clamp and move the plastic film.

[0024] In this embodiment, the dust collection box 14 is connected to the inside of the air box 13 through the filter screen 16. The air inlets of the two fans in the air box 13 are facing the filter screen 16, and the air outlet of the air box 13 is far away from the main conveyor belt 2. After the cleaning brush 15 sweeps away the garbage on the surface of the main conveyor belt 2, the dust is sucked into the filter screen 16 under the action of the wind when the air box 13 is running, and is filtered and collected in the dust collection box 14 by the filter screen 16.

[0025] In this embodiment, a magnetic plate 17 is fixed at the center of the bottom surface of the dust collector 14 away from the feed trough 12. An iron sheet is embedded in the air box 13 below the magnetic plate 17 to fix the dust collector 14. By attracting and fixing the magnetic plate 17 and the iron sheet on the air box 13, the dust collector 14 is limited after being inserted into the top surface of the air box 13, so as to ensure the stability of the dust collector 14 during use.

[0026] Working principle: When the plastic film needs to be cut, the plastic film to be cut is passed through the feed trough 12 and laid flat on the surface of the main conveyor belt 2. The servo motor 4 runs, driving the belt roller 10 to rotate. The belt roller 10 drives the belt roller 10 connected to the pulley 7 to rotate through the main conveyor belt 2. In turn, the pulley 7 and the conveyor belt 8 drive the belt roller 10 inside the other main conveyor belt 2 to rotate, thus driving the other main conveyor belt 2 to move synchronously. When the pulley 7 rotates, it drives the other pulley 7 to rotate relative to it through the gear 9. Under the drive of the other pulley 7 and the conveyor belt 8, the auxiliary conveyor belt 6 moves relative to the main conveyor belt 2, driving the main conveyor belt 2 to move. The movement of the main conveyor belt 2 cooperates with the unwinding end of the plastic film to move the plastic film. Between the secondary conveyor belt 6 and the main conveyor belt 2, the secondary conveyor belt 6 and the main conveyor belt 2 work together to clamp the film and move forward. When the amount of movement is equal to the cutting length, the servo motor 4 controls the belt roller 10 to stop rotating, thereby pausing the main conveyor belt 2 and the secondary conveyor belt 6. The cutting blade holder 3 runs to cut. After the cutting is completed, the servo motor 4 controls the main conveyor belt 2 and the secondary conveyor belt 6 to continue moving. The main conveyor belt 2 and the secondary conveyor belt 6 on the unloading side drive the plastic film to be unloaded, and the main conveyor belt 2 and the secondary conveyor belt 6 on the loading side pull the plastic film to be loaded so that it can be cut again. While the main conveyor belt 2 on the loading side moves, the cleaning brush 15 cleans the surface of the main conveyor belt 2, and the air box 13 runs to suck the dust into the dust collection box 14.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A plastic film cutting device for easy feeding, characterized in that: The device includes a cutting frame (1), a cutting blade holder (3), and a cutting table (5). The cutting frame (1) between two main conveyor belts (2) has a cutting table (5) fixed inside. The main conveyor belts (2) are symmetrically arranged inside the cutting frame (1). A secondary conveyor belt (6) is arranged above the connection between the cutting table (5) and the main conveyor belt (2) on both sides. The bottom surface of the secondary conveyor belt (6) is in contact with the top surface of the cutting table (5) and the main conveyor belt (2). The secondary conveyor belt (6) moves relative to the main conveyor belt (2). Belt rollers (10) are symmetrically sleeved at both ends of the two main conveyor belts (2) and the secondary conveyor belts (6). Each belt roller (10) is rotatably connected inside the cutting frame (1). A cleaning component is provided at the feeding end of the main conveyor belt (2).

2. The plastic film cutting device for easy feeding as described in claim 1, characterized in that: A dust cover (11) is fixed to the edge of the cutting frame (1) on the feeding side of the main conveyor belt (2). A support plate (18) is fixed inside the cutting frame (1) inside the main conveyor belt (2). The top surface of the support plate (18) is in contact with the top surface inside the main conveyor belt (2). A feeding groove (12) is opened inside the dust cover (11) at the feeding end of the main conveyor belt (2). The dust covers (11) on both sides of the feeding groove (12) are both set to arc shape.

3. The plastic film cutting device for easy feeding as described in claim 2, characterized in that: The cleaning components include a bellows (13), a dust collection box (14), a cleaning brush (15), and a filter screen (16). The bellows (13) is installed on the bottom surface of the cutting frame (1) on the side of the dust cover (11). The dust collection box (14) is inserted into the top surface of the bellows (13). The cleaning brush (15) is fixed in the middle of the inner side of the dust collection box (14). The top surface of the cleaning brush (15) is in contact with the bottom surface of the main conveyor belt (2). The filter screen (16) is fixed on the bottom surface of the dust collection box (14).

4. The plastic film cutting device for easy feeding as described in claim 1, characterized in that: A servo motor (4) is installed on the cutting frame (1) outside one end of the belt roller (10). The output end of the servo motor (4) rotates through the cutting frame (1) and is fixedly connected to the belt roller (10). The belt rollers (10) at opposite ends of the two main conveyor belts (2) extend to the outside of the cutting frame (1) and are fixed with pulleys (7). A conveyor belt (8) is sleeved between the two pulleys (7).

5. The plastic film cutting device for easy feeding as described in claim 1, characterized in that: The belt rollers (10) at opposite ends of the two auxiliary conveyor belts (6) extend to the outside of the cutting frame (1) and are fixed with another pulley (7). Another conveyor belt (8) is sleeved between the two other pulleys (7). A gear (9) is fixed at the outer end of one of the pulleys (7) and the other pulley (7). The two gears (9) are meshed together.

6. The plastic film cutting device for easy feeding as described in claim 3, characterized in that: The dust collector (14) is connected to the inside of the air box (13) through the filter screen (16). The air inlets of the two fans in the air box (13) are facing the filter screen (16), and the air outlet of the air box (13) is far away from the main conveyor belt (2).

7. The plastic film cutting device for easy feeding as described in claim 3, characterized in that: A magnetic plate (17) is fixed in the middle of the bottom surface of the dust collector (14) away from the feed trough (12). An iron sheet is embedded in the air box (13) below the magnetic plate (17) to fix the dust collector (14).

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