Film bag cutting device for packaging production

Abstract

The utility model discloses a film bag cutting device for packaging production, which comprises a rack, a cutting mechanism, a traction mechanism and a stop mechanism, the cutting mechanism comprises a rotary cutter assembly for cutting a film by using a rotating blade and a rotary cutter pushing assembly for pushing the rotary cutter to reciprocate, the rotary cutter pushing assembly is arranged below the rack, and the stop mechanism is arranged below the rack. The rotary cutter assembly is installed at the driving end of the rotary cutter pushing assembly, the traction mechanism comprises a clamping assembly for clamping a film and a traction assembly for pulling the clamping assembly to move, the clamping assembly is connected with the driving end of the traction assembly, the traction assembly is installed on the portion, above the cutting mechanism, of the rack, and the stop mechanism comprises a stop assembly for stopping the film from moving. And the stop assembly is mounted on the rack in front of the traction mechanism. When a film bag is used for repackaging production, the traction mechanism, the stop mechanism and the cutting mechanism work in a matched mode, the cutting position of the film bag is accurate, the cutting action is smooth, a notch is flat and attractive, and the edge of a cutter is not prone to being abraded.

Description

Technical Field

[0001] This utility model relates to the field of material packaging production technology, and in particular to a film bag cutting device for packaging production. Background Technology

[0002] In the production line for repackaging small-bag packaging film bags, the double-layer film needs to be sealed and then cut to form a film bag with one open end. Then, multiple neatly arranged small bags are put into the film bag. After the bagging is completed, the film bag is sealed and output. Therefore, the cutting of film bags is a very important production step.

[0003] Currently, in the domestic flexible bag packaging market, existing film bag cutting devices in the repackaging production lines for small-bag foods such as potato chips use fixed cutters. The film is fed to the bottom of the cutter for cutting, which makes it difficult to fix the cutting position. This can easily cause the film to shift during cutting, resulting in deviations in the cut size. Moreover, the cutter blade is easily worn, which can lead to the film not being cut continuously. This reduces the efficiency of film cutting, increases production costs, and affects the normal production of film bag packaging. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a film bag cutting device for packaging production that does not cause deviation in film cutting and thus avoids size deviation during film bag repackaging production, and whose blade edge is not easily worn and does not cause the film to be cut continuously, and has a simple structure.

[0005] To solve the above-mentioned technical problems, this utility model adopts a film bag cutting device for packaging production, including a frame. The film bag cutting device also includes a cutting mechanism, a traction mechanism, and a stopping mechanism. The cutting mechanism includes a rotary cutter assembly that cuts the film with a rotating blade and a rotary cutter pushing assembly that pushes the rotary cutter to reciprocate. The rotary cutter pushing assembly is installed below the frame, and the rotary cutter assembly is installed at the drive end of the rotary cutter pushing assembly. The traction mechanism includes a clamping assembly that clamps the film and a traction assembly that pulls the clamping assembly to move. The clamping assembly is connected to the drive end of the traction assembly, and the traction assembly is installed on the frame above the cutting mechanism. The stopping mechanism includes a stopping assembly that prevents the film from moving, and the stopping assembly is installed on the frame in front of the traction mechanism.

[0006] In a preferred embodiment of this utility model, the rotary cutting blade assembly includes a rotary blade and a rotary motor. The rotary motor is disposed below the frame and parallel to the frame. The center of the rotary blade is fixedly mounted on the drive shaft of the rotary motor. The rotary cutting blade pushing assembly includes a pushing cylinder, which is fixedly connected to the frame. The drive rod of the pushing cylinder is fixedly connected to the body of the rotary motor.

[0007] In a preferred embodiment of this utility model, the rotary cutting blade pushing assembly includes a slide rail, a slider, a motor connecting plate, and a frame connecting plate. The frame connecting plate is horizontally disposed below the frame and connected to the frame. The slide rail is horizontally disposed on the frame connecting plate. The front end of the rotary motor is fixedly connected to the slider through the motor connecting plate, and the slider is slidably connected to the slide rail.

[0008] In a preferred embodiment of this utility model, the pushing cylinder is a rodless cylinder, and both ends of the rodless cylinder are fixedly connected to the frame connecting plate. The body of the rotary motor is mounted on the moving slider of the rodless cylinder.

[0009] In a preferred embodiment of this utility model, the traction assembly includes a guide rail, a traction belt, and a traction motor. The guide rail is installed along the inner side of the frame, the traction motor is installed at one end of the frame, and the traction belt is rotatably connected to the drive shaft of the traction motor. The clamping assembly includes a frame and a clamping cylinder. The frame has an inwardly opening, the upper end of the frame is fixedly connected to the traction belt, and the middle part of the frame is slidably connected to the guide rail. The clamping cylinder is installed inside the frame, and the top rod of the clamping cylinder is positioned opposite to the bottom frame of the frame.

[0010] In a preferred embodiment of this utility model, the stop assembly includes a stop cylinder, a stop rod, and a top plate. The stop cylinder is fixedly connected to the frame via a mounting plate. The top end of the stop rod is positioned opposite to the top plate, and the end of the stop rod is fixedly connected to the drive rod of the stop cylinder. The top plate is fixedly connected to the frame.

[0011] In a preferred embodiment of this utility model, there are two sets of stop cylinders and stop rods, which are horizontally spaced apart on the frame in front of the traction mechanism.

[0012] In a preferred embodiment of the present invention, the stop assembly further includes a pressure plate, a pressure block, and a connecting rod. The pressure plate is horizontally disposed above the top plate in front of the clamping assembly. The connecting rod is disposed above and in front of the pressure plate and its two ends are connected to the frame. The lower end of the pressure block is fixedly connected to the pressure plate, and the upper end of the pressure block is rotatably connected to the connecting rod through a bearing.

[0013] By adopting the above structure, this utility model has the following beneficial effects:

[0014] This utility model relates to a film bag cutting device for packaging production, comprising a frame, a cutting mechanism, a traction mechanism, and a stopping mechanism. The cutting mechanism includes a rotary cutter assembly that cuts the film with a rotating blade and a rotary cutter pushing assembly that pushes the rotary cutter to reciprocate. The rotary cutter pushing assembly is installed below the frame, and the rotary cutter assembly is installed at the drive end of the rotary cutter pushing assembly. The traction mechanism includes a clamping assembly that holds the film and a traction assembly that pulls the clamping assembly to move. The clamping assembly is connected to the drive end of the traction assembly, and the traction assembly is installed on the frame above the cutting mechanism. The stopping mechanism includes a stopping assembly that prevents the film from moving, and the stopping assembly is installed on the frame in front of the traction mechanism. In operation, the double-layer film with a fixed-length sealing layer is sequentially passed through the stop end of the stop mechanism and the clamping end of the clamping component of the traction mechanism. The clamping component holds the film at the sealing point. Then, the traction component of the traction mechanism pulls the clamping component to move, and the clamping component moves the film along with it. After the film has moved a fixed distance, the traction component stops, and the film stops moving. At this time, the stop component activates to stop the film from moving. Then, the cutting mechanism starts to operate below and behind the stop mechanism. The rotary cutting blade push component of the cutting mechanism drives the rotary cutting blade component to move laterally from one side to the other below the frame. The rotating rotary cutting blade then cuts the upper film laterally, thus obtaining a film bag with one end closed and the other end open, completing the film bag cutting work for packaging production. During film cutting, the stop mechanism and traction mechanism work together to fix the film and prevent it from moving. Therefore, the film cutting position will not shift, and the cutting size will not be deviated. The film is cut by rotating a rotary cutter, which makes the cutter blade less prone to wear and prevents the film from being cut continuously. This greatly improves the efficiency of film cutting, significantly reduces production costs, and ensures the normal operation of film bag packaging production.

[0015] The rotary cutting blade assembly of this invention includes a rotating blade and a rotary motor. The rotary motor is located below and parallel to the frame. The center of the rotating blade is fixedly mounted on the drive shaft of the rotary motor. The rotary cutting blade pushing assembly includes a pushing cylinder, which is fixedly connected to the frame. The drive rod of the pushing cylinder is fixedly connected to the body of the rotary motor. This structure uses a high-speed rotating blade to cut film bags, resulting in clean cuts, minimal blade wear, and an economical and practical design, driven by a pushing cylinder.

[0016] The rotary cutter pushing assembly of this utility model includes a slide rail, a slider, a motor connecting plate, and a frame connecting plate. The frame connecting plate is horizontally disposed below and connected to the frame. The slide rail is horizontally disposed on the frame connecting plate. The front end of the rotary motor is fixedly connected to the slider through the motor connecting plate, and the slider is slidably connected to the slide rail. This design makes the rotary cutter movement smoother, more stable, and more reliable.

[0017] The pushing cylinder described in this invention is a rodless cylinder. Both ends of the rodless cylinder are fixedly connected to the frame connecting plate, and the body of the rotary motor is mounted on the moving slider of the rodless cylinder. Using a rodless cylinder simplifies the structure, facilitates installation, and ensures the movement better meets requirements.

[0018] The traction assembly of this utility model includes a guide rail, a traction belt, and a traction motor. The guide rail is installed along the inner side of the frame, and the traction motor is installed at one end of the frame. The traction belt is rotatably connected to the drive shaft of the traction motor. The clamping assembly includes a frame and a clamping cylinder. The frame opening faces inward, the upper end of the frame is fixedly connected to the traction belt, and the middle part of the frame is slidably connected to the guide rail. The clamping cylinder is installed inside the frame, and the top rod of the clamping cylinder is positioned opposite to the bottom frame of the frame. This structure provides a firm grip on the film bag, smooth traction, controllable length, simple installation, and easy connection to subsequent processes.

[0019] The stopping assembly of this utility model includes a stopping cylinder, a stopping rod, and a top plate. The stopping cylinder is fixedly connected to the frame via a mounting plate. The top end of the stopping rod is positioned opposite the top plate, and the end of the stopping rod is fixedly connected to the drive rod of the stopping cylinder. The top plate is fixedly connected to the frame. This structure allows for rapid and simple stopping of the film bag.

[0020] This invention comprises two sets of stop cylinders and stop rods, which are horizontally spaced apart on the frame in front of the traction mechanism. This structure makes the stop film bag more stable and reliable.

[0021] The stop assembly of this utility model further includes a pressure plate, a pressure block, and a connecting rod. The pressure plate is horizontally positioned above the top plate in front of the clamping assembly. The connecting rod is positioned above and in front of the pressure plate, with both ends connected to the frame. The lower end of the pressure block is fixedly connected to the pressure plate, and the upper end of the pressure block is rotatably connected to the connecting rod via a bearing. This structure makes the film bag flatter, allows for more accurate cutting of the film bag, and results in neater and more aesthetically pleasing cuts.

[0022] This utility model has a simple structure, is easy to implement, simple to install and operate, and has low manufacturing cost. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a three-dimensional schematic diagram of a film bag cutting device for packaging production according to the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the rotary cutting blade assembly and the rotary cutting blade pushing assembly of the cutting mechanism of this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the clamping component and the stopping component of the traction mechanism and the stopping mechanism of the present invention. Detailed Implementation

[0027] See Figure 1 , Figure 2 and Figure 3 The illustrated film bag cutting device for packaging production includes a frame 1, a cutting mechanism 2, a traction mechanism 3, and a stop mechanism 4. The cutting mechanism 2 includes a rotary cutter assembly 2a that cuts the film with a rotating blade and a rotary cutter pusher assembly 2b that pushes the rotary cutter to reciprocate. The rotary cutter pusher assembly 2b is installed below the frame 1, and the rotary cutter assembly 2a is installed at the drive end of the rotary cutter pusher assembly 2b. The traction mechanism 3 includes a clamping assembly 3a that clamps the film and a traction assembly 3b that pulls the clamping assembly to move. The clamping assembly 3a is connected to the drive end of the traction assembly 3b, and the traction assembly 3b is installed on the frame 1 above the cutting mechanism 2. The stop mechanism 4 includes a stop assembly 4a that prevents the film from moving and is installed on the frame 1 in front of the traction mechanism 3.

[0028] As a preferred embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the rotary cutting blade assembly 2a includes a rotating blade 2-1 and a rotary motor 2-2. The rotary motor 2-2 is located below the frame 1 and parallel to the frame 1. The center of the rotating blade 2-1 is fixedly mounted on the drive shaft of the rotary motor 2-2. The rotary cutting blade pushing assembly 2b includes a pushing cylinder 2-3. The pushing cylinder 2-3 is fixedly connected to the frame 1, and the drive rod of the pushing cylinder 2-3 is fixedly connected to the body of the rotary motor 2-2.

[0029] As a preferred embodiment of this utility model, such as Figure 1 and Figure 2As shown, the rotary cutting blade pushing assembly 2b includes a slide rail 2-4, a slider 2-5, a motor connecting plate 2-6, and a frame connecting plate 2-7. The frame connecting plate 2-7 is horizontally arranged below the frame 1 and connected to the frame 1. The slide rail 2-4 is horizontally arranged on the frame connecting plate 2-7. The front end of the rotary motor 2-2 is fixedly connected to the slider 2-5 through the motor connecting plate 2-6. The slider 2-5 is slidably connected to the slide rail 2-4.

[0030] As a preferred embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the pushing cylinder 2-3 is a rodless cylinder, and the two ends of the rodless cylinder are fixedly connected to the frame connecting plate 2-7. The body of the rotary motor 2-2 is mounted on the moving slider 2-8 of the rodless cylinder.

[0031] As a preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the traction assembly 3b includes a guide rail 3-1, a traction belt 3-2, and a traction motor 3-3. The guide rail 3-1 is installed along the inner side of the frame 1, and the traction motor 3-3 is installed at one end of the frame 1. The traction belt 3-2 is rotatably connected to the drive shaft of the traction motor 3-3. The clamping assembly 3a includes a frame 3-4 and a clamping cylinder 3-5. The frame 3-4 has an inward opening, and its upper end is fixedly connected to the traction belt 3-2. The middle part of the frame 3-4 is slidably connected to the guide rail 3-1. The clamping cylinder 3-5 is installed inside the frame 3-4, and the top rod 3-6 of the clamping cylinder 3-5 is opposite to the bottom frame 3-7 of the frame 3-4.

[0032] As a preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, the stop assembly 4a includes a stop cylinder 4-1, a stop rod 4-2, and a top plate 4-3. The stop cylinder 4-1 is fixedly connected to the frame 1 via a mounting plate 4-4. The top end of the stop rod 4-2 is positioned opposite to the top plate 4-3, and the end of the stop rod 4-2 is fixedly connected to the drive rod of the stop cylinder 4-1. The top plate 4-3 is fixedly connected to the frame 1.

[0033] As a preferred embodiment of this utility model, such as Figure 1 and Figure 3 As shown, there are two sets of the stop cylinder 4-1 and the stop rod 4-2, which are horizontally spaced apart on the frame 1 in front of the traction mechanism 3.

[0034] As a preferred embodiment of this utility model, such as Figure 1 and Figure 3As shown, the stop assembly 4a also includes a pressure plate 4-5, a pressure block 4-6, and a connecting rod 4-7. The pressure plate 4-5 is horizontally arranged above the top plate 4-3 in front of the clamping assembly 3a. The connecting rod 4-7 is arranged in front of and above the pressure plate 4-5 and its two ends are connected to the frame 1. The lower end of the pressure block 4-6 is fixedly connected to the pressure plate 4-5, and the upper end of the pressure block 4-6 is rotatably connected to the connecting rod 4-7 through a bearing 4-8.

[0035] In operation, the double-layer film with a fixed-length sealing layer is first passed sequentially between the stop rod 4-2 and the top plate 4-3 of the stop assembly 4a of the stop mechanism 4, between the pressure plate 4-5 and the top plate 4-3 of the stop assembly 4a, and between the rod 3-6 of the clamping cylinder 3-5 of the clamping assembly 3a of the traction mechanism 3 and the bottom frame 3-7 of the frame 3-4. The rod 3-6 of the clamping cylinder 3-5 presses against the film and the bottom frame 3-7, causing the clamping assembly 3a to clamp the film at the sealing point. Then, the traction motor 3-3 of the traction assembly 3b of the traction mechanism 3 is activated, driving the traction belt 3-2 to pull the clamping assembly 3a along the guide rail 3-1, and the clamping assembly 3a also moves while clamping the film. After the film has moved a certain distance, the traction motor 3-3 stops driving, and the clamping assembly 3a stops moving while holding the film. At this time, the stop cylinder 4-1 of the stop assembly 4a is activated, and the stop rod 4-2 abuts against the film and the top plate 4-3 to stop the film from moving. The pressure plate 4-5 also presses down on the film under the action of gravity. Then, the push cylinder 2-3 of the rotary cutter push assembly 2b of the cutting mechanism 2 is activated, driving the rotary cutter assembly 2a to move laterally from one side to the other along the slide rail 2-4 below the frame 1. The rotating blade 2-1 then cuts the film above laterally, thus obtaining a film bag with one end closed and the other end open, completing the film bag cutting work for packaging production.

[0036] After testing, this utility model, when used in the production of repackaged film bags, demonstrates that the traction mechanism, stop mechanism, and cutting mechanism work together during the cutting of the film bags, resulting in precise cutting position, smooth cutting action, and neat and aesthetically pleasing cuts. The cutting edge is also less prone to wear, significantly improving production efficiency, greatly reducing production costs, ensuring the normal operation of film bag packaging production, and achieving excellent results with its simple structure and small footprint.

Claims

1. A film bag cutting device for packaging production, comprising a frame (1), characterized in that: The film bag cutting device also includes a cutting mechanism (2), a traction mechanism (3), and a stop mechanism (4). The cutting mechanism (2) includes a rotary cutter assembly (2a) for cutting the film with a rotating blade and a rotary cutter push assembly (2b) for pushing the rotary cutter to move back and forth. The rotary cutter push assembly (2b) is installed below the frame (1), and the rotary cutter assembly (2a) is installed at the drive end of the rotary cutter push assembly (2b). The traction mechanism (3) includes a clamping assembly (3a) for clamping the film and a traction assembly (3b) for pulling the clamping assembly to move. The clamping assembly (3a) is connected to the drive end of the traction assembly (3b), and the traction assembly (3b) is installed on the frame (1) above the cutting mechanism (2). The stop mechanism (4) includes a stop assembly (4a) for preventing the film from moving. The stop assembly (4a) is installed on the frame (1) in front of the traction mechanism (3).

2. The film bag cutting device for packaging production according to claim 1, characterized in that: The rotary cutter assembly (2a) includes a rotary blade (2-1) and a rotary motor (2-2). The rotary motor (2-2) is located below the frame (1) and parallel to the frame (1). The center of the rotary blade (2-1) is fixedly mounted on the drive shaft of the rotary motor (2-2). The rotary cutter push assembly (2b) includes a push cylinder (2-3). The push cylinder (2-3) is fixedly connected to the frame (1). The drive rod of the push cylinder (2-3) is fixedly connected to the body of the rotary motor (2-2).

3. The film bag cutting device for packaging production according to claim 2, characterized in that: The rotary cutter push assembly (2b) includes a slide rail (2-4), a slider (2-5), a motor connecting plate (2-6), and a frame connecting plate (2-7). The frame connecting plate (2-7) is horizontally arranged below the frame (1) and connected to the frame (1). The slide rail (2-4) is horizontally arranged on the frame connecting plate (2-7). The front end of the rotary motor (2-2) is fixedly connected to the slider (2-5) through the motor connecting plate (2-6). The slider (2-5) is slidably connected to the slide rail (2-4).

4. The film bag cutting device for packaging production according to claim 3, characterized in that: The push cylinder (2-3) is a rodless cylinder. Both ends of the rodless cylinder are fixedly connected to the frame connecting plate (2-7). The body of the rotary motor (2-2) is mounted on the motion slider (2-8) of the rodless cylinder.

5. The film bag cutting device for packaging production according to claim 1, characterized in that: The traction assembly (3b) includes a guide rail (3-1), a traction belt (3-2), and a traction motor (3-3). The guide rail (3-1) is installed along the inner side of the frame (1). The traction motor (3-3) is installed at one end of the frame (1). The traction belt (3-2) is rotatably connected to the drive shaft of the traction motor (3-3). The clamping assembly (3a) includes a frame (3-4) and a clamping cylinder (3-5). The frame (3-4) has an inward opening. The upper end of the frame (3-4) is fixedly connected to the traction belt (3-2). The middle part of the frame (3-4) is slidably connected to the guide rail (3-1). The clamping cylinder (3-5) is installed inside the frame (3-4). The top rod (3-6) of the clamping cylinder (3-5) is opposite to the bottom frame (3-7) of the frame (3-4).

6. The film bag cutting device for packaging production according to claim 1, characterized in that: The stop assembly (4a) includes a stop cylinder (4-1), a stop rod (4-2), and a top plate (4-3). The stop cylinder (4-1) is fixedly connected to the frame (1) via a mounting plate (4-4). The top end of the stop rod (4-2) is positioned opposite to the top plate (4-3). The end of the stop rod (4-2) is fixedly connected to the drive rod of the stop cylinder (4-1). The top plate (4-3) is fixedly connected to the frame (1).

7. The film bag cutting device for packaging production according to claim 6, characterized in that: There are two sets of the stop cylinder (4-1) and the stop rod (4-2), which are horizontally spaced apart on the frame (1) in front of the traction mechanism (3).

8. The film bag cutting device for packaging production according to claim 6, characterized in that: The stop assembly (4a) further includes a pressure plate (4-5), a pressure block (4-6), and a connecting rod (4-7). The pressure plate (4-5) is arranged horizontally above the top plate (4-3) in front of the clamping assembly (3a). The connecting rod (4-7) is arranged above and in front of the pressure plate (4-5) and its two ends are connected to the frame (1). The lower end of the pressure block (4-6) is fixedly connected to the pressure plate (4-5), and the upper end of the pressure block (4-6) is rotatably connected to the connecting rod (4-7) through a bearing (4-8).

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