Paper film bag cutting equipment with pre-cutting function

Abstract

The invention relates to the field of paper film bag processing, and discloses a paper film bag cutting device with a pre-cutting function, which comprises a machine table for supporting the whole device, and the inner wall of the machine table is sequentially provided with an extrusion roller and a conveying roller from top to bottom; the cutting device is arranged on the inner wall of the machine table and used for cutting the paper mold bag, the cutting device comprises a sliding frame, the sliding frame is slidably connected to the inner wall of the machine table, a guide rod is fixedly connected to the inner wall of the sliding frame, a cutting knife is slidably connected to the outer wall of the guide rod, and the end, close to the paper mold bag, of the cutting knife is a cutting end; and the facing direction of the end is the cutting direction of the group of cutting devices. According to the paper mold bag cutting device, complete cutting of the paper mold bag can be achieved through multiple times of cutting, supporting can be provided for cutting through the cutting base in the cutting assembly, in this way, the cut part of the paper mold bag can be prevented from protruding upwards, and an operator can conveniently and accurately judge the cutting point during cutting.

Description

Technical Field

[0001] This invention relates to the field of paper film bag processing, and more particularly to a paper film bag cutting device with pre-cutting function. Background Technology

[0002] Paper molded bags are bag-shaped containers made primarily of paper or pulp through a specific process. They combine practicality and environmental friendliness and are widely used in the packaging industry. In terms of raw materials and processes, their main raw material is pulp or various types of paper. During production, plastic knots are glued to the surface of the paper to ensure the bag's load-bearing capacity.

[0003] When processing paper molded bags, after production, they need to be cut first. Only after the paper molded bags are cut to the appropriate size can they be folded to form their shape. In the existing technology, a cutting component is often used to directly cut the glued paper molded bags as a whole. This single cut breaks off the excess parts on both sides of the paper molded bag. Since the paper molded bag itself is made of multiple materials glued together, and these materials cannot be perfectly bonded together, relative movement will occur between its multiple structures during cutting. This will cause the cutting line to bend, which will affect the quality of the finished product. Therefore, a paper molded bag cutting device with a pre-cutting function is proposed to solve the above problems. Summary of the Invention

[0004] To overcome the above shortcomings, the present invention provides a paper film bag cutting device with pre-cutting function, which aims to solve the problem in the prior art that "using a set of cutting devices to cut off the excess parts of the paper film bag at one time will cause the edge cutting parts to be bent."

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a paper film bag cutting device with pre-cutting function, comprising: A machine base is used to support the overall device. The inner wall of the machine base is provided with extrusion rollers and conveying rollers from top to bottom. A cutting device is installed on the inner wall of the machine base for cutting paper molded bags. The cutting device includes a sliding frame that is slidably connected to the inner wall of the machine base. A guide rod is fixedly connected to the inner wall of the sliding frame, and a cutting blade is slidably connected to the outer wall of the guide rod. The end of the cutting blade closest to the paper molded bag is the cutting end, and the direction of this end is the cutting direction of the cutting device. An adjustment mechanism, located on the outer wall of the machine, is used to control the movement of the cutting device. The adjustment mechanism includes a fixed block, with a vertical screw rotatably connected to the inner wall of the fixed block. A sliding frame is threadedly connected to the outer wall of the vertical screw. Multiple sets of sliding frames are provided, one set of which is located on the outer wall of the vertical screw near the bottom end. A cutting seat is slidably connected to the outer wall of the guide rod of this set. The end of the cutting seat near the paper molded bag is a support end. Two sets of adjustment mechanisms are provided, arranged horizontally in an array on the outer wall of the machine. Cutting devices are provided on the inner walls of both sets of adjustment mechanisms, with opposite cutting directions. The waste recycling device is located at the bottom of the machine and is used to collect waste.

[0006] As a further description of the above technical solution: The cutting device also includes a fixing sleeve, which is fixedly connected to the inner wall of the sliding frame, and the cutting blade slides on the inner wall of the fixing sleeve.

[0007] As a further description of the above technical solution: The inner wall of the fixed sleeve is rotatably connected to a translation screw, which passes through and is slidably connected to the inner wall of the sliding frame.

[0008] As a further description of the above technical solution: The vertical screw is provided in multiple sets, and the multiple sets of vertical screws are symmetrically arranged with the center line of the fixed block as the axis of symmetry.

[0009] As a further description of the above technical solution: The vertical screw can be divided into upper and lower sections with the center line as the boundary. One set of the vertical screws has external threads only on the upper section, while the other set of the vertical screws has external threads only on the lower section.

[0010] As a further description of the above technical solution: The sliding frame is threadedly connected to the external threaded portion of one set of vertical screws, and the sliding frame is slidably connected to the smooth portion of another set of vertical screws.

[0011] As a further description of the above technical solution: The waste recycling device includes a mounting frame, which is fixedly connected to the bottom of the machine base. A collection roller is rotatably connected to the inner wall of the mounting frame, and a guide roller is rotatably connected to the inner wall of the machine base. A through groove is provided on the lower surface of the machine base.

[0012] As a further description of the above technical solution: The mounting frame and collecting roller are provided in multiple sets, and the multiple sets of mounting frames and collecting rollers are arranged in a horizontal array on the lower surface of the machine.

[0013] As a further description of the above technical solution: A collecting motor is mounted on the front surface of the mounting frame, and the output shaft of the collecting motor is fixedly connected to the front end of one of the collecting rollers.

[0014] As a further description of the above technical solution: The two sets of collecting rollers are connected by belt drive, and the outer wall of the collecting rollers is provided with a limit frame.

[0015] The present invention has the following beneficial effects: 1. In this invention, by setting multiple sets of mirror-set cutting components, the paper mold bag can be completely cut through multiple cuts. Furthermore, the cutting seat in the cutting component can provide support for the cutting, thus preventing the paper mold bag from bulging upwards at the cut part. During cutting, the operator can easily and accurately judge the cutting point, thereby improving the cutting accuracy and preventing the cutting edge from bending.

[0016] 2. In this invention, by using a translation screw to drive the cutting blade to move, the position of the cutting point can be easily adjusted. Furthermore, the translation screw can be adjusted from the outside of the device, so the position of the cutting point can be changed without stopping the machine. The overall device is more convenient to adjust.

[0017] 3. In this invention, by setting up a collection component, while performing distributed cutting, the material falling from the cutting can be guided to pass through the machine from below. Then, the broken material can be collected using a collection roller. By collecting the broken material during the cutting process, the workplace can be kept clean and tidy, and the falling material can be prevented from interfering with subsequent cutting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in the present invention in its working state; Figure 2 This is a three-dimensional structural diagram of the overall device in this invention; Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism in this invention; Figure 4 This is a three-dimensional structural breakdown diagram of the adjustment mechanism in this invention; Figure 5 This is a three-dimensional structural breakdown diagram of the fixing sleeve in this invention; Figure 6 This is a rear view schematic diagram of the three-dimensional structure of the overall device in the present invention in its working state; Figure 7 This is a schematic cross-sectional view of the three-dimensional structure of the machine tool in this invention; Figure 8 This is a three-dimensional structural diagram of the collecting roller in this invention.

[0019] Legend: 1. Machine base; 2. Extrusion roller; 3. Conveyor roller; 4. Cutting device; 41. Sliding frame; 42. Fixing sleeve; 43. Translation screw; 44. Guide rod; 45. Cutting blade; 46. Cutting seat; 5. Adjustment mechanism; 51. Fixing block; 52. Vertical screw; 6. Waste recycling device; 61. Collection roller; 62. Collection motor; 63. Guide roller; 64. Limiting frame; 65. Mounting frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Reference Figure 1 - Figure 3 This invention provides an embodiment of a paper film bag cutting device with pre-cutting function, comprising: a machine base 1, a cutting device 4, an adjusting mechanism 5, and a waste recycling device 6. The machine base 1 supports the entire device. A U-shaped frame is provided on top of the machine base 1 to provide a cutting space, and supporting feet are provided below to support the entire device. From top to bottom, the inner wall of the machine base 1 is provided with a squeezing roller 2 and a conveying roller 3. The conveying roller 3 can be driven by a motor to rotate and move the paper film bag, while the squeezing roller 2 can squeeze the paper film bag to conform to the outer wall of the conveying roller 3. The cutting device 4 is located on the inner wall of the machine base 1 and is used to cut the paper film bag. The molded bag is cut. The cutting device 4 includes a sliding frame 41 for supporting the whole cutting device 4. The sliding frame 41 is slidably connected to the inner wall of the machine base 1. The sliding frame 41 can slide up and down on the inner wall of the machine base 1 and can be separated from the machine base 1. A guide rod 44 is fixedly connected to the inner wall of the sliding frame 41. The guide rod 44 is a straight rod with a smooth outer wall. A cutting blade 45 is slidably connected to the outer wall of the guide rod 44. The cutting blade 45 can slide left and right on the outer wall of the straight rod. The end of the cutting blade 45 near the molded bag is the cutting end. The cutting end of the cutting blade 45 is provided with a blade edge, which can cut the molded bag. The direction of this end is the cutting direction of the cutting device 4.

[0022] Reference Figure 1 , Figure 3 and Figure 4The adjustment mechanism 5 is located on the outer wall of the machine base 1 and is used to control the movement of the cutting device 4. The adjustment mechanism 5 includes a fixed block 51 for supporting the overall adjustment mechanism 5. A vertical screw 52 is rotatably connected to the inner wall of the fixed block 51. The vertical screw 52 is set perpendicular to the ground. A sliding frame 41 is threadedly connected to the outer wall of the vertical screw 52. When the vertical screw 52 rotates, it can drive the sliding frame 41 to move up and down. Multiple sets of sliding frames 41 are provided. One set of sliding frames 41 is located on the outer wall of the vertical screw 52 near the bottom end. Two sets of sliding frames 41 overlap each other in the vertical direction. A cutting seat 46 is slidably connected to the outer wall of the guide rod 44 of this set. The cutting seat 46 can support the paper molded bag. During cutting, the end of the cutting seat 46 closest to the paper molded bag is the support end. The support end of the cutting seat 46 is provided with a groove, which can cooperate with the cutting blade 45 to cut and support the paper molded bag. There are two sets of adjustment mechanisms 5. The two sets of adjustment mechanisms 5 are arranged horizontally in an array on the outer wall of the machine base 1. The inner walls of the two sets of adjustment mechanisms 5 are provided with cutting devices 4 and the cutting directions are opposite. The two sets of cutting devices 4 can cut one layer of material of the paper molded bag respectively. The two sets of cutting devices 4 can work together to achieve complete cutting. The waste recycling device 6 is set at the bottom of the machine base 1 and is used to collect waste.

[0023] Reference Figure 3 - Figure 5 The cutting device 4 also includes a fixed sleeve 42 for guiding the movement of the cutting blade 45. The fixed sleeve 42 is fixedly connected to the inner wall of the sliding frame 41. When the sliding frame 41 moves up and down, it will simultaneously drive the sliding frame 41 and the guide rod 44 to move, so that the cutting position and cutting depth can be adjusted. The cutting blade 45 slides on the inner wall of the fixed sleeve 42. The fixed sleeve 42 can guide the cutting blade 45 to move horizontally left and right. The inner wall of the fixed sleeve 42 is rotatably connected to a translation screw 43. The translation screw 43 passes through and is slidably connected to the inner wall of the sliding frame 41. When the translation screw 43 rotates, it can drive the cutting blade 45 to move parallel.

[0024] Reference Figure 3 - Figure 5Multiple sets of vertical screws 52 are provided, symmetrically arranged around the center line of the fixed block 51. Two sets of vertical screws 52 are parallel to each other. The sliding bracket 41 of the same set will be simultaneously sleeved on the outer wall of the two sets of vertical screws 52. The vertical screws 52 can be divided into upper and lower sections with the center line as the boundary. One set of vertical screws 52 has external threads only on the upper section, and the other set of vertical screws 52 has external threads only on the lower end. When working, the vertical screws 52 can only drive the sliding bracket 41 to move through the threaded section. The sliding bracket 41 and one set of vertical screws 52 can move together. The vertical screw 52 is threaded at its external threaded part. When the vertical screw 52, ​​which is threaded to the sliding frame 41, rotates, it can drive the sliding frame 41 to move. The sliding frame 41 is slidably connected to the smooth part of another set of vertical screws 52. When the sliding frame 41 connected to the smooth part of the vertical screw 52 moves, the vertical screw 52 can be guided to move up and down through the smooth part. This setting also ensures that the movement of the two sets of sliding frames 41 cannot exceed the center position of the vertical screw 52, ​​thus preventing the cutting blade 45 from colliding with the cutting seat 46 and causing damage.

[0025] Reference Figure 6 - Figure 8 The waste recycling device 6 includes a mounting frame 65 for supporting the collecting roller 61. The mounting frame 65 is fixedly connected to the bottom of the machine base 1. The collecting roller 61 is rotatably connected to the inner wall of the mounting frame 65. When the collecting roller 61 rotates, it can drive the waste to wrap around its surface, thus realizing waste collection. The inner wall of the machine base 1 is rotatably connected to the guide roller 63 for guiding the movement of the waste. The lower surface of the machine base 1 is provided with a through groove for the waste to pass through the machine base 1. Multiple sets of mounting frames 65 and collecting rollers 61 are provided. The horizontal array 61 is arranged on the lower surface of the machine base 1. Multiple sets of collecting rollers 61 can be used to collect different materials. The front surface of the mounting frame 65 is equipped with a collecting motor 62 for driving the collecting rollers 61 to rotate. The output shaft of the collecting motor 62 is fixedly connected to the front end of one set of collecting rollers 61. The two sets of collecting rollers 61 are connected by belt drive. With this arrangement, the two sets of collecting rollers 61 can be driven to rotate synchronously by starting the collecting motor 62. The outer wall of the collecting roller 61 is provided with a limiting frame 64 for limiting the position of waste entanglement.

[0026] Working principle: During use, the paper molded bag is conveyed to the cutting area by the conveyor roller 3. The extrusion roller 2 squeezes the paper molded bag to make it fit against the conveyor roller 3 to ensure stable conveying. The adjustment mechanism 5 is activated, and by rotating the vertical screw 52, ​​the sliding frame 41 moves up and down, adjusting the height of the cutting device 4 so that the cutting blade 45 and the cutting seat 46 are in the appropriate cutting position. One set of cutting seats 46 on the sliding frame 41 supports the paper molded bag to prevent it from bulging during cutting. By rotating the translation screw 43, the cutting blade 45 slides along the guide rod 44, adjusting the cutting point position. Two sets of horizontally arrayed cutting devices 4 with opposite cutting directions respectively cut the paper molded bag. The molded bag is cut multiple times on both sides. First, a set of cutting blades 45 and cutting seat 46 complete part of the cutting. Then, another set of cutting devices 4 in the opposite direction completes the remaining cutting, avoiding edge bending caused by cutting in one go. The waste generated by cutting falls through the groove on the lower surface of the machine base 1 and is guided to the waste recycling device 6 by the guide roller 63. The collection motor 62 starts and drives two sets of collection rollers 61 to rotate synchronously through belt drive, wrapping the waste around the collection rollers 61. The limit frame 64 restricts the position of the waste wrapping to ensure the cleanliness of the workplace. The cutting point can be changed without stopping the machine by adjusting the translation screw 43, which improves the cutting efficiency and accuracy.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A paper film bag cutting device with pre-cutting function, characterized in that, include: The machine base (1) is used to support the overall device. The inner wall of the machine base (1) is provided with extrusion rollers (2) and conveyor rollers (3) from top to bottom. A cutting device (4) is installed on the inner wall of the machine base (1) for cutting paper molded bags. The cutting device (4) includes a sliding frame (41), which is slidably connected to the inner wall of the machine base (1). A guide rod (44) is fixedly connected to the inner wall of the sliding frame (41), and a cutting blade (45) is slidably connected to the outer wall of the guide rod (44). The cutting blade (45) is located at the end near the paper molded bag, and the direction of this end is the cutting direction of the cutting device (4). An adjustment mechanism (5) is set on the outer wall of the machine base (1) to control the movement of the cutting device (4). The adjustment mechanism (5) includes a fixed block (51). The inner wall of the fixed block (51) is rotatably connected to a vertical screw (52). The sliding frame (41) is threadedly connected to the outer wall of the vertical screw (52). There are multiple sets of sliding frames (41). One set of sliding frames (41) is set on the outer wall of the vertical screw (52) near the bottom. The outer wall of the guide rod (44) of this set is slidably connected to a cutting seat (46). The end of the cutting seat (46) near the paper mold bag is the support end. There are two sets of adjustment mechanisms (5). The two sets of adjustment mechanisms (5) are arranged in a horizontal array on the outer wall of the machine base (1). The inner walls of the two sets of adjustment mechanisms (5) are both equipped with cutting devices (4) and the cutting directions are opposite. Waste recycling device (6) is located at the bottom of machine (1) and is used to collect waste.

2. The paper film bag cutting device with pre-cutting function according to claim 1, characterized in that: The cutting device (4) also includes a fixing sleeve (42), which is fixedly connected to the inner wall of the sliding frame (41), and the cutting blade (45) slides on the inner wall of the fixing sleeve (42).

3. The paper film bag cutting device with pre-cutting function according to claim 2, characterized in that: The inner wall of the fixed sleeve (42) is rotatably connected to a translation screw (43), which passes through and is slidably connected to the inner wall of the sliding frame (41).

4. The paper film bag cutting device with pre-cutting function according to claim 1, characterized in that: The vertical screw (52) is provided in multiple sets, and the multiple sets of vertical screw (52) are symmetrically arranged with the center line of the fixing block (51) as the axis of symmetry.

5. A paper film bag cutting device with pre-cutting function according to claim 4, characterized in that: The vertical screw (52) can be divided into upper and lower sections with the center line as the boundary. One set of the vertical screw (52) has external threads only in the upper section, and the other set of the vertical screw (52) has external threads only in the lower section.

6. A paper film bag cutting device with pre-cutting function according to claim 5, characterized in that: The sliding frame (41) is threadedly connected to the external thread portion of one set of vertical screws (52), and the sliding frame (41) is slidably connected to the smooth portion of another set of vertical screws (52).

7. A paper film bag cutting device with pre-cutting function according to claim 1, characterized in that: The waste recycling device (6) includes a mounting frame (65), which is fixedly connected to the bottom of the machine base (1). A collection roller (61) is rotatably connected to the inner wall of the mounting frame (65), and a guide roller (63) is rotatably connected to the inner wall of the machine base (1). A through groove is provided on the lower surface of the machine base (1).

8. A paper film bag cutting device with pre-cutting function according to claim 7, characterized in that: Multiple sets of mounting frames (65) and collecting rollers (61) are provided, and multiple sets of mounting frames (65) and collecting rollers (61) are arranged in a horizontal array on the lower surface of the machine base (1).

9. A paper film bag cutting device with pre-cutting function according to claim 8, characterized in that: A collecting motor (62) is mounted on the front surface of the mounting bracket (65), and the output shaft of the collecting motor (62) is fixedly connected to the front end of one of the collecting rollers (61).

10. A paper film bag cutting device with pre-cutting function according to claim 8, characterized in that: The two sets of collecting rollers (61) are connected by belt drive, and the outer wall of the collecting rollers (61) is provided with a limit frame (64).

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