A slicing bag oriented tear puncture resistant composite film cutting device

Abstract

The utility model belongs to the film cutting technology field, concretely relates to a kind of slicing bag directional tear puncture-resistant composite film cutting device, including rack, the upper side of the rack is fixedly connected with connecting frame, the surface of the rack is provided with recess, cutting assembly is provided on the connecting frame, conveying roller is rotatably connected on the rack, tensioning assembly is provided on the rack, the cutting assembly includes electric cylinder, and the electric cylinder is fixedly connected on connecting frame.This slicing bag directional tear puncture-resistant composite film cutting device is through the "pressure sleeve pre-pressing+cutting knife accurate cutting" collaborative design of cutting assembly, solve the problem that traditional shearing is easy to produce burr, bevel cutting.Electric cylinder drives mounting plate to drop, and pressure sleeve contacts composite film first, forms stable pre-pressing to composite film under the action of reset spring, and fixes film material position;Subsequently, cutting knife passes through the pressure sleeve through slot to complete cutting, avoid that film material is wrinkle due to extrusion, tension fluctuation during cutting process.

Description

Technical Field

[0001] This utility model relates to the field of membrane cutting technology, specifically to a cutting device for directional tear-resistant and puncture-resistant composite membranes for slicing bags. Background Technology

[0002] Composite films, as functional materials made from multiple layers of films of different materials (such as PET, PE, and aluminum foil) through a composite process, are widely used in food packaging, pharmaceutical packaging, and electronic component encapsulation due to their excellent barrier properties, weather resistance, and mechanical strength. With the increasing demands from downstream industries for packaging precision, production efficiency, and product quality, the composite film cutting process has become a critical step in the production workflow.

[0003] Currently, most composite film cutting relies on "blade translation shearing" technology, which uses a cylinder or electric drive to move the blade along a fixed trajectory. During the cutting process, the composite film is prone to wrinkles due to the pressure of the cutting blade and the fluctuation of the composite film tension, resulting in rough edges and oblique cuts. In view of this, a directional tear-resistant and puncture-resistant composite film cutting device for slicing bags is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a cutting device for directional tear-resistant and puncture-resistant composite film of slicing bags, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a cutting device for directional tear-resistant and puncture-resistant composite film of slicing bags, comprising a frame, a connecting frame fixedly connected to the upper side of the frame, a groove formed on the surface of the frame, a cutting assembly mounted on the connecting frame, a conveying roller rotatably connected to the frame, and a tensioning assembly mounted on the frame. The cutting assembly includes: An electric cylinder is fixedly connected to a connecting frame, and a mounting plate is fixedly connected to the output end of the electric cylinder; A cutting blade, which is fixedly mounted on the lower side of the mounting plate; A pressure sleeve is provided, with a connecting block fixedly connected to its outer wall. A T-rod is fixedly connected to the upper side of the connecting block. The T-rod passes through the mounting plate and is slidably connected to the mounting plate. The T-rod and the mounting plate are elastically connected by a return spring.

[0006] Preferably, a guide rod is fixedly connected to the upper side of the mounting plate. The guide rod passes through the connecting frame and is slidably connected to the connecting frame. The guide rod is sleeved by a limiting sleeve, which is fixedly connected to the connecting frame.

[0007] Preferably, the compression sleeve has a through groove in the middle, and the through groove matches the cutting blade.

[0008] Preferably, the conveying rollers are provided in multiple sets, and the conveying rollers are driven to rotate by a motor.

[0009] Preferably, the tensioning assembly includes a fixing block, which is penetrated by and rotatably connected to a positioning shaft. A swing arm is fixedly connected to the end of the positioning shaft, and a pressure roller is rotatably connected to the swing arm. The positioning shaft and the fixing block are elastically connected by a torsion spring.

[0010] Preferably, the fixing block is fixedly connected to the frame, and the fixing block rotates relative to the swing arm.

[0011] Preferably, the pressure roller is taut during the conveying of the composite film under the elastic force of the torsion spring.

[0012] This invention provides a directional tear-resistant and puncture-resistant composite film cutting device for slicing bags. It has the following beneficial effects: (1) The directional tear-resistant and puncture-resistant composite film cutting device for the cutting bag solves the problems of burrs and oblique cuts caused by traditional shearing by the coordinated design of "pressure sleeve pre-compression + precise cutting of the cutting blade" in the cutting component. When the mounting plate is driven by the electric cylinder to descend, the pressure sleeve first contacts the composite film and forms a stable pre-compression on the composite film under the action of the return spring, fixing the position of the film material; then the cutting blade passes through the pressure sleeve through groove to complete the cutting, avoiding wrinkles caused by the extrusion and tension fluctuation of the film material during the cutting process.

[0013] (2) The directional tear-resistant and puncture-resistant composite film cutting device for the slicing bag provides a stable film material conveying state for the cutting process through the cooperation of the tensioning component and the conveying roller. When the conveying roller continuously conveys the composite film, the pressure roller of the tensioning component always adheres to the surface of the film material under the action of the torsion spring, dynamically offsetting the tension fluctuations in the film material conveying, keeping the film material taut and flat, avoiding the offset of the cutting position due to the loosening of the film material, and eliminating the need for manual tension adjustment, thus adapting to the continuous production needs of composite films of different thicknesses. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the cutting assembly structure of this utility model; Figure 4This is a schematic diagram of a portion of the cutting assembly of this utility model; Figure 5 This utility model Figure 1 Schematic diagram of structure A in the middle.

[0016] Explanation of icon numbers: 1. Frame; 2. Connecting frame; 3. Cutting assembly; 4. Conveying roller; 5. Tensioning assembly; 101. Groove; 31. Electric cylinder; 32. Mounting plate; 33. Cutting knife; 34. Pressure sleeve; 35. Connecting block; 36. T-bar; 37. Guide rod; 38. Limiting sleeve; 341. Through groove; 51. Fixing block; 52. Positioning shaft; 53. Swing arm; 54. Pressure roller.

[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 This utility model proposes a cutting device for directional tear-resistant and puncture-resistant composite film of slicing bag, including a frame 1, a connecting frame 2 fixedly connected to the upper side of the frame 1, a groove 101 opened on the surface of the frame 1, a cutting component 3 provided on the connecting frame 2, a conveying roller 4 rotatably connected to the frame 1, and a tensioning component 5 provided on the frame 1.

[0020] In this embodiment of the present invention, the cutting assembly 3 includes an electric cylinder 31, a cutting blade 33, and a pressure sleeve 34. The electric cylinder 31 is fixedly connected to the connecting frame 2, and a mounting plate 32 is fixedly connected to the output end of the electric cylinder 31. The cutting blade 33 is fixedly installed on the lower side of the mounting plate 32. A connecting block 35 is fixedly connected to the outer wall of the pressure sleeve 34, and a T-rod 36 is fixedly connected to the upper side of the connecting block 35. The T-rod 36 passes through the mounting plate 32 and is slidably connected to the mounting plate 32. The T-rod 36 and the mounting plate 32 are elastically connected by a return spring. A guide rod 37 is fixedly connected to the upper side of the mounting plate 32. The guide rod 37 passes through the connecting frame 2 and is slidably connected to the connecting frame 2. The guide rod 37 is... The limiting sleeve 38 is fitted and fixedly connected to the connecting frame 2. The middle part of the pressure sleeve 34 has a through groove 341, which matches the cutting knife 33. By starting the electric cylinder 31, under the guidance of the guide rod 37 and the limiting sleeve 38, the mounting plate 32 can be driven to descend, so that the cutting knife 33 and the pressure sleeve 34 descend. The descent of the pressure sleeve 34 can first squeeze the composite film. Under the action of the return spring, the pressure sleeve 34 presses the composite film tightly. When the mounting plate 32 continues to descend, the cutting knife 33 then passes through the through groove 341 of the pressure sleeve 34 to complete the cut. This avoids wrinkles caused by compression and tension fluctuations in the film material during the cutting process, and can ensure the stable cutting of the composite film.

[0021] Furthermore, multiple sets of conveyor rollers 4 are provided, and the conveyor rollers 4 are driven to rotate by a motor. The tensioning assembly 5 includes a fixed block 51, which is penetrated by a positioning shaft 52 and rotatably connected to the positioning shaft 52. A swing arm 53 is fixedly connected to the end of the positioning shaft 52, and a pressure roller 54 is rotatably connected to the swing arm 53. The positioning shaft 52 and the fixed block 51 are elastically connected by a torsion spring. The fixed block 51 is fixedly connected to the frame 1. The fixed block 51 and the swing arm 53 rotate relative to each other. The pressure roller 54 is tensioned when conveying the composite film under the elastic force of the torsion spring. When the conveyor rollers 4 continuously convey the composite film, the pressure roller 54 of the tensioning assembly 5 always adheres to the surface of the film material under the elastic force of the torsion spring, dynamically offsetting the tension fluctuations in the film material conveying, keeping the film material taut and flat, avoiding the offset of the cutting position due to the loosening of the film material, and eliminating the need for manual tension adjustment, thus adapting to the continuous production needs of composite films of different thicknesses.

[0022] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install, and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here. The standard parts used in this application can all be purchased from the market. The specific connection methods of each part are all connected by conventional means such as riveting and welding that are mature in the prior art. The standard parts are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art.

[0023] In use, the composite film is continuously conveyed by the conveying roller 4. The pressure roller 54 of the tensioning component 5 is always in contact with the surface of the film material under the action of the torsion spring, dynamically offsetting the tension fluctuations during the conveying of the film material, keeping the film material taut and flat, and avoiding the offset of the cutting position due to the loosening of the film material. When the film material is conveyed to the bottom of the cutting component 3, the conveying of the film material is stopped, and then the electric cylinder 31 is started. Under the guidance of the guide rod 37 and the limiting sleeve 38, the mounting plate 32 can be driven to descend, so that the cutting knife 33 and the pressure sleeve 34 descend. The descending pressure sleeve 34 can first squeeze the composite film. Under the action of the return spring, the pressure sleeve 34 presses the composite film tightly. When the mounting plate 32 continues to descend, the cutting knife 33 then passes through the through groove 341 of the pressure sleeve 34 to complete the cutting.

[0024] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cutting device for directional tear-resistant and puncture-resistant composite film of slicing bags, comprising a frame (1), characterized in that: A connecting frame (2) is fixedly connected to the upper side of the frame (1). A groove (101) is provided on the surface of the frame (1). A cutting assembly (3) is provided on the connecting frame (2). A conveying roller (4) is rotatably connected to the frame (1). A tensioning assembly (5) is provided on the frame (1). The cutting assembly (3) includes: An electric cylinder (31) is fixedly connected to a connecting frame (2), and a mounting plate (32) is fixedly connected to the output end of the electric cylinder (31). A cutting blade (33) is fixedly mounted on the lower side of the mounting plate (32); A pressure sleeve (34) is fixedly connected to a connecting block (35) on its outer wall. A T-rod (36) is fixedly connected to the upper side of the connecting block (35). The T-rod (36) passes through the mounting plate (32) and is slidably connected to the mounting plate (32). The T-rod (36) and the mounting plate (32) are elastically connected by a return spring.

2. The directional tear-resistant and puncture-resistant composite film cutting device for slicing bags according to claim 1, characterized in that: A guide rod (37) is fixedly connected to the upper side of the mounting plate (32). The guide rod (37) passes through the connecting frame (2) and is slidably connected to the connecting frame (2). The guide rod (37) is sleeved by a limiting sleeve (38), which is fixedly connected to the connecting frame (2).

3. The directional tear-resistant and puncture-resistant composite film cutting device for slicing bags according to claim 1, characterized in that: The pressure sleeve (34) has a through groove (341) in the middle, which matches the cutting blade (33).

4. The directional tear-resistant and puncture-resistant composite film cutting device for slicing bags according to claim 1, characterized in that: The conveying rollers (4) are provided in multiple sets, and the conveying rollers (4) are driven to rotate by a motor.

5. The directional tear-resistant and puncture-resistant composite film cutting device for slicing bags according to claim 1, characterized in that: The tensioning assembly (5) includes a fixing block (51), which is penetrated by a positioning shaft (52) and rotatably connected to the positioning shaft (52). A swing arm (53) is fixedly connected to the end of the positioning shaft (52), and a pressure roller (54) is rotatably connected to the swing arm (53). The positioning shaft (52) and the fixing block (51) are elastically connected by a torsion spring.

6. The directional tear-resistant and puncture-resistant composite film cutting device for slicing bags according to claim 5, characterized in that: The fixed block (51) is fixedly connected to the frame (1), and the fixed block (51) rotates with the swing arm (53).

7. The directional tear-resistant and puncture-resistant composite film cutting device for slicing bags according to claim 5, characterized in that: The pressure roller (54) is taut when conveying the composite film under the elastic force of the torsion spring.

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