A slitting machine for plastic packaging bag production

Abstract

The utility model relates to the field of plastic packaging bag production discloses a slitting machine for plastic packaging bag production, including base, is fixedly connected with control frame on the base, is equipped with the rotating hole on control frame, is rotatably connected with the connecting pipe in the rotating hole, one side of control frame is equipped with the rotating mechanism that drives connecting pipe rotation, the outer wall fixed sleeve of connecting pipe is connected with the guide roller of coaxial arrangement, is equipped with the air -exhausting chamber that is evenly arranged along the circumference of connecting pipe in the guide roller, the outer wall fixed connection of connecting pipe has the air -exhausting pipe that communicates with air -exhausting chamber, the outer wall of guide roller is equipped with the air -exhausting hole that communicates with air -exhausting chamber and is arranged in matrix, one side fixed connection of control frame has high pressure air -exhausting pump, high pressure air -exhausting pump input fixed connection has the air inlet pipe, the air inlet pipe is connected through the sealed bearing rotation seal connection between pipe. The utility model has the advantages compared with prior art, can effectively adsorb and fix the film in the slitting process, guarantee its even conveying slitting equipment to improve the slitting accuracy and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging bag production technology, specifically to a slitting machine for producing plastic packaging bags. Background Technology

[0002] During the production of plastic packaging bags, wide plastic films typically need to be slit to meet packaging requirements of different sizes. The slitting machine, as a key piece of equipment in this process, directly affects slitting efficiency and finished product quality.

[0003] Most existing slitting machines use conveying equipment to transport the film and a cutting mechanism to cut the film to a fixed length. However, during the slitting process, due to the flexibility and electrostatic adsorption properties of the plastic film itself, wrinkles, deviations, or vibrations are prone to occur during transport, causing the film to not adhere smoothly to the surface of the conveying equipment, thus affecting the accuracy of the cut and the edge quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a slitting machine for the production of plastic packaging bags, which can effectively adsorb and fix the film during the slitting process and ensure its flat conveying, so as to improve the slitting accuracy and production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a slitting machine for producing plastic packaging bags, including a base, a control frame fixedly connected to the base, a rotating hole provided on the control frame, a connecting pipe rotatably connected in the rotating hole, a rotating mechanism for driving the connecting pipe to rotate on one side of the control frame, a coaxially arranged guide roller fixedly sleeved on the outer wall of the connecting pipe, an air extraction chamber evenly arranged along the circumference of the connecting pipe provided in the guide roller, an air extraction pipe communicating with the air extraction chambers fixedly connected to the outer wall of the connecting pipe, an air extraction hole arranged in a matrix communicating with the air extraction chambers on the outer wall of the guide roller, a high-pressure air pump fixedly connected to one side of the control frame, an air inlet pipe fixedly connected to the input end of the high-pressure air pump, the air inlet pipe and the connecting pipe being rotatably sealed together by a sealed bearing, and a cutting mechanism cooperating with the guide roller on the control frame.

[0006] As an improvement, the rotating mechanism includes a drive pulley rotatably connected to one side of the control frame, a motor that drives the drive pulley to rotate is fixedly connected to the control frame, a driven pulley is fixedly sleeved on the outer wall of the connecting pipe, and a transmission belt is provided between the drive pulley and the driven pulley.

[0007] As an improvement, the cutting mechanism includes a fixed frame fixedly connected to the control frame on one side of the guide roller, a cutting cylinder fixedly connected to the fixed frame, and a cutting blade fixedly connected to the output end of the cutting cylinder.

[0008] As an improvement, a scraper plate arranged at an incline and located on the bottom surface of the guide roller is fixedly connected to one side of the control frame, and the upper end of the scraper plate is tangent to the outer wall of the guide roller.

[0009] As an improvement, a support frame is fixedly connected to the base below the scraper, and an electric discharge roller is rotatably connected to the upper end of the support frame.

[0010] The advantages of this invention compared to existing technologies are as follows: A high-pressure vacuum pump continuously evacuates the air chamber inside the guide roller, creating a uniform negative pressure adsorption zone on the roller surface using matrix-distributed air extraction holes. This ensures the plastic film adheres tightly and smoothly to the roller surface, effectively overcoming wrinkling, shifting, or shaking problems caused by the film's flexibility and static electricity. Driven by a rotating mechanism, the guide roller rotates at a uniform speed, achieving stable and continuous film transport. Combined with a cutting mechanism, it precisely cuts the film at a set length, improving not only the consistency and flatness of the cut dimensions but also significantly enhancing production efficiency and product quality. Attached Figure Description

[0011] Figure 1 This is an exploded view of a slitting machine for producing plastic packaging bags according to this utility model.

[0012] Figure 2 This is a schematic diagram of the structure of a slitting machine for producing plastic packaging bags according to this utility model.

[0013] Figure 3 This is a cross-section of a slitting machine for producing plastic packaging bags according to this utility model. Figure 1 .

[0014] Figure 4 This is a cross-section of a slitting machine for producing plastic packaging bags according to this utility model. Figure 2 .

[0015] As shown in the figure: 1. Base; 2. Control frame; 3. Guide roller; 4. Connecting pipe; 5. Air extraction pipe; 6. Air inlet pipe; 7. High-pressure air pump; 8. Drive pulley; 9. Motor; 10. Driven pulley; 11. Fixing frame; 12. Cutting cylinder; 13. Cutting blade; 14. Air extraction hole; 15. Scraper; 16. Electric discharge roller; 17. Support frame; 18. Air extraction chamber. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 4 As shown, a slitting machine for producing plastic packaging bags includes a base 1, a control frame 2 fixedly connected to the base 1, a rotating hole on the control frame 2, a connecting pipe 4 rotatably connected in the rotating hole, a rotating mechanism for driving the connecting pipe 4 to rotate on one side of the control frame 2, the rotating mechanism including a drive pulley 8 rotatably connected to one side of the control frame 2, a motor 9 fixedly connected to the control frame 2 for driving the drive pulley 8 to rotate, a driven pulley 10 fixedly sleeved on the outer wall of the connecting pipe 4, and a transmission belt between the drive pulley 8 and the driven pulley 10.

[0018] A coaxially arranged guide roller 3 is fixedly sleeved on the outer wall of the connecting pipe 4. The guide roller 3 has a suction chamber 18 evenly arranged around the circumference of the connecting pipe 4. The outer wall of the connecting pipe 4 is fixedly connected to a suction pipe 5 communicating with the suction chamber 18. The outer wall of the guide roller 3 has a matrix of suction holes 14 communicating with the suction chamber 18. A high-pressure suction pump 7 is fixedly connected to one side of the control frame 2. An air inlet pipe 6 is fixedly connected to the input end of the high-pressure suction pump 7. The air inlet pipe 6 and the connecting pipe 4 are rotatably sealed by a sealed bearing. A cutting mechanism that cooperates with the guide roller 3 is provided on the control frame 2. The cutting mechanism includes a fixed frame 11 fixedly connected to the control frame 2 on one side of the guide roller 3. A cutting cylinder 12 is fixedly connected to the fixed frame 11. A cutting blade 13 is fixedly connected to the output end of the cutting cylinder 12.

[0019] A scraper 15, which is inclinedly arranged and located on the bottom surface of the guide roller 3, is fixedly connected to one side of the control frame 2. The upper end of the scraper 15 is tangent to the outer wall of the guide roller 3. A support frame 17 is fixedly connected to the base 1 below the scraper 15. An electric discharge roller 16 is rotatably connected to the upper end of the support frame 17.

[0020] In practical use, the power is turned on and the high-pressure vacuum pump 7 is started. The high-pressure vacuum pump 7 begins to work, continuously evacuating the multiple vacuum chambers 18 inside the guide roller 3 through the air inlet pipe 6, connecting pipe 4, and vacuum pipe 5, so that the vacuum holes 14 arranged in a matrix on the surface of the guide roller 3 form a uniform negative pressure adsorption area. The wide plastic film roll is drawn out and its end is laid flat on the outer surface of the guide roller 3. Under the action of negative pressure, the film is quickly adsorbed and adhered to the roller surface, effectively avoiding wrinkling, displacement, or shaking caused by material flexibility and static electricity in traditional conveying.

[0021] Motor 9 drives connecting pipe 4 and guide roller 3 to rotate at a constant speed via drive pulley 8, transmission belt, and driven pulley 10, thereby traction and smooth, continuous forward transport of the film. When film cutting is required, cutting cylinder 12 is activated, which pushes cutting blade 13 to move rapidly, completing a precise cut of the film at the instant of contact with the surface of guide roller 3. During the cutting process, the film is fully adsorbed and fixed, with no displacement or deformation, resulting in neat, burr-free cut edges. When the cut film segment continues to rotate with guide roller 3 to the bottom position, it contacts the inclined scraper 15. The upper edge of scraper 15 is tangent to the outer wall of guide roller 3, which can smoothly peel the film peel line off the roller surface, avoiding residue or adhesion. The peeled film segment is placed on the lower electric discharge roller 16 and guided to the collection station by the subsequent conveying device, realizing automated continuous material collection.

[0022] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A slitting machine for producing plastic packaging bags, comprising a base (1), wherein a control frame (2) is fixedly connected to the base (1), characterized in that: The control frame (2) is provided with a rotating hole, and a connecting pipe (4) is rotatably connected in the rotating hole. A rotating mechanism for driving the connecting pipe (4) to rotate is provided on one side of the control frame (2). A coaxially arranged guide roller (3) is fixedly sleeved on the outer wall of the connecting pipe (4). An air extraction chamber (18) is provided in the guide roller (3) and evenly arranged around the circumference of the connecting pipe (4). An air extraction pipe (5) communicating with the air extraction chamber (18) is fixedly connected to the outer wall of the connecting pipe (4). An air extraction hole (14) arranged in a matrix communicating with the air extraction chamber (18) is provided on the outer wall of the guide roller (3). A high-pressure air extraction pump (7) is fixedly connected to one side of the control frame (2). An air inlet pipe (6) is fixedly connected to the input end of the high-pressure air extraction pump (7). The air inlet pipe (6) and the connecting pipe (4) are rotatably sealed by a sealed bearing. A cutting mechanism that cooperates with the guide roller (3) is provided on the control frame (2).

2. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The rotating mechanism includes a drive pulley (8) rotatably connected to one side of the control frame (2), a motor (9) for driving the drive pulley (8) to rotate is fixedly connected to the control frame (2), a driven pulley (10) is fixedly sleeved on the outer wall of the connecting pipe (4), and a transmission belt is provided between the drive pulley (8) and the driven pulley (10).

3. The slitting machine for producing plastic packaging bags according to claim 1, characterized in that: The cutting mechanism includes a fixed frame (11) fixedly connected to the control frame (2) on one side of the guide roller (3), a cutting cylinder (12) fixedly connected to the fixed frame (11), and a cutting blade (13) fixedly connected to the output end of the cutting cylinder (12).

4. A slitting machine for producing plastic packaging bags according to claim 1, characterized in that: A scraper plate (15) is fixedly connected to one side of the control frame (2) and is located on the bottom surface of the guide roller (3) at an incline. The upper end of the scraper plate (15) is tangent to the outer wall of the guide roller (3).

5. A slitting machine for producing plastic packaging bags according to claim 4, characterized in that: A support frame (17) is fixedly connected to the base (1) below the scraper (15), and an electric discharge roller (16) is rotatably connected to the upper end of the support frame (17).

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