Packaging bag tearing line opening device

Abstract

The utility model discloses a packaging bag tearing line opening device which comprises a supporting frame, a mounting frame is arranged in the middle of the supporting frame, a knife rest roll shaft is arranged in the middle of the upper portion of the mounting frame, a knife assembly is fixedly installed on the knife rest roll shaft, and the knife assembly comprises an arc-shaped mounting plate. Arc-shaped connecting plates are arranged at the two ends of the side, away from the knife rest roll shaft, of the arc-shaped mounting plate, a plurality of first punching knives which are distributed at equal intervals are arranged on the sides, away from the arc-shaped mounting plate, of the arc-shaped connecting plates, second punching knives are arranged on one sides of the first punching knives, and the ends of the two arc-shaped connecting plates are fixedly connected through the arc-shaped knives correspondingly. According to the opening device, the opening efficiency of the tearing line is high, the tearing line has a good anti-explosion function, the phenomenon that the tearing line bursts when a product is extruded and falls off during transportation and carrying is effectively avoided, and the practicability of a packaging bag is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag processing technology, and in particular to a packaging bag tear line opening device. Background Technology

[0002] Facial cleansing wipes are a common type of fast-moving consumer goods in daily life; they have experienced rapid growth in recent years and are increasingly favored by consumers, gradually becoming an essential part of daily life. During the processing of facial cleansing wipe packaging bags, the tear lines need to be opened. Existing opening devices for the tear lines are simple in structure, making the tear lines prone to bursting during transportation, handling, squeezing, and drops. Furthermore, uneven tearing is easily caused when the paper packaging is torn, resulting in damage to the entire packaging bag. Therefore, we have proposed a new tear line opening device for packaging bags. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a tear line opening device for packaging bags. This invention solves the problems of existing opening devices having simple tear line opening structures, which makes the tear line opening prone to bursting during transportation, handling, squeezing, and drops, and also easily causing uneven tearing when paper packaging is torn, resulting in overall damage to the packaging bag.

[0004] This utility model discloses a packaging bag tear line opening device, including a support frame, a mounting frame in the middle of the support frame, a knife holder roller shaft in the upper middle of the mounting frame, a motor in the lower part of the mounting frame, the motor rotation shaft being connected to the knife holder roller shaft via a belt, and a knife assembly being fixedly mounted on the knife holder roller shaft.

[0005] The tool assembly includes an arc-shaped mounting plate. Arc-shaped connecting plates are provided at both ends of the side of the arc-shaped mounting plate away from the tool holder roller shaft. Multiple first punching tools are provided on the side of the arc-shaped connecting plate away from the arc-shaped mounting plate. A second punching tool is provided on one side of the first punching tool. The second punching tool is inclined towards one side of the arc-shaped mounting plate. The ends of the two arc-shaped connecting plates are fixedly connected by the arc-shaped tools.

[0006] In the above scheme, the arc-shaped mounting plate is provided with a plurality of mounting holes arranged in a matrix, and the arc-shaped mounting plate is fixedly connected to the tool holder roller shaft by screws inserted into the mounting holes.

[0007] In the above scheme, the mounting bracket is provided with a limiting roller on one side of the tool holder roller shaft.

[0008] In the above scheme, the upper end of the support frame away from the mounting frame is provided with a feeding roller shaft.

[0009] In the above scheme, a first guide roller is provided at the upper center of the mounting frame, a second guide roller is provided at the upper end of the mounting frame on the side away from the feeding roller, a third guide roller is provided below the second guide roller, a fourth guide roller is provided below the third guide roller, a fifth guide roller is provided below the mounting frame, and a discharge roller is provided below the fifth guide roller on the mounting frame.

[0010] In the above scheme, the support frame is equipped with a CNC panel located above the feeding roller shaft.

[0011] In the above scheme, brake casters are provided at all four corners below the support frame.

[0012] The advantages and beneficial effects of this utility model are as follows: This utility model provides a tear line opening device for packaging bags. When the motor is working, it drives the blade holder roller to rotate via belt transmission. When the blade holder roller rotates, the blade assembly also rotates. During the rotation of the blade assembly, the blade assembly opens the tear line in the packaging bag material film. The first punching blade, the second punching blade, and the arc-shaped blade sequentially open the packaging bag material film, forming a unidirectional tear line on the packaging bag material film. This opening device has a simple structure, high tear line opening efficiency, and the tear line has good explosion-proof function, effectively preventing the tear line from bursting during transportation, handling, squeezing, and drops, thus improving the practicality of the packaging bag. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is the front view of the present invention;

[0016] Figure 3 This is a schematic diagram of part A of the present utility model;

[0017] Figure 4 This is a front view of the cutting tool assembly of this utility model;

[0018] Figure 5 This is a top view of the cutting tool assembly of this utility model.

[0019] In the diagram: 1. Support frame; 2. Mounting frame; 3. Tool holder roller shaft; 4. Motor; 5. Belt; 6. Tool assembly; 61. Arc-shaped mounting plate; 62. Arc-shaped connecting plate; 63. First drilling tool; 64. Second drilling tool; 65. Arc-shaped tool; 66. Mounting hole; 7. Limiting roller shaft; 8. Feeding roller shaft; 9. First guide roller shaft; 10. Second guide roller shaft; 11. Third guide roller shaft; 12. Fourth guide roller shaft; 13. Fifth guide roller shaft; 14. Discharge roller shaft; 15. CNC panel; 16. Brake caster wheel. Detailed Implementation

[0020] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0021] like Figure 1-5 As shown, this utility model is a tear line opening device for packaging bags, including a support frame 1, an mounting frame 2 in the middle of the support frame 1, a knife holder roller 3 in the upper middle of the mounting frame 2, the two ends of the knife holder roller 3 being movably connected to the mounting frame 2, a motor 4 in the lower part of the mounting frame 2, the rotating shaft of the motor 4 being connected to the knife holder roller 3 via a belt 5, and a knife assembly 6 being fixedly installed on the knife holder roller 3. When the motor 4 is working, the motor 4 can drive the knife holder roller 3 to rotate through the belt 5. When the knife holder roller 3 rotates, the knife assembly 6 also rotates. The rotating knife assembly 6 can complete the tear line opening work of the packaging bag raw material film.

[0022] The cutting tool assembly 6 includes an arc-shaped mounting plate 61. Arc-shaped connecting plates 62 are provided at both ends of the arc-shaped mounting plate 61 on the side away from the cutting tool roller 3. Multiple equidistant first punching tools 63 are provided on the side of the arc-shaped connecting plate 62 away from the arc-shaped mounting plate 61. A second punching tool 64 is provided on one side of each of the first punching tools 63. The second punching tool 64 is inclined towards the arc-shaped mounting plate 61. The ends of the two arc-shaped connecting plates 62 are fixedly connected by arc-shaped tools 65. When the cutting tool assembly 6 makes a tear line opening on the packaging bag material film, the first punching tool 63, the second punching tool 64, and the arc-shaped tool 65 sequentially open the packaging bag material film, forming a tear line that can be torn in one direction. The arc-shaped tools 65 on both sides prevent the packaging bag from bursting at the end. The first punching tool 63 and the second punching tool 64 form multiple equidistant L-shaped tear lines in the middle of the tear line, making it easier for the user to tear the tear line in one direction.

[0023] The arc-shaped mounting plate 61 is provided with a plurality of mounting holes 66 arranged in a matrix. The arc-shaped mounting plate 61 is fixedly connected to the tool holder roller shaft 3 by screws inserted into the mounting holes 66. The tool assembly 6 can be fixedly installed on the tool holder roller shaft 3 through the mounting holes 66.

[0024] The mounting frame 2 is provided with a limiting roller 7 on one side of the knife holder roller 3. The limiting roller 7 can limit the packaging bag raw material film to be torn open.

[0025] The support frame 1 is provided with a feeding roller shaft 8 on the upper end of the side away from the mounting frame 2. The feeding roller shaft 8 is movably connected to the support frame 1 and can feed the raw material film of the packaging bag to be torn open.

[0026] The mounting frame 2 has a first guide roller 9 at its upper center, a second guide roller 10 at its upper end on the side of the mounting frame 2 away from the feeding roller 8, a third guide roller 11 below the second guide roller 10, a fourth guide roller 12 below the third guide roller 11, a fifth guide roller 13 below the mounting frame 2, and a discharge roller 14 below the fifth guide roller 13. Both ends of the first guide roller 9, second guide roller 10, third guide roller 11, fourth guide roller 12, fifth guide roller 13, and discharge roller 14 are movably connected to the support frame 1. The first guide roller 9, second guide roller 10, third guide roller 11, fourth guide roller 12, fifth guide roller 13, and discharge roller 14 guide the packaging bag raw material film respectively.

[0027] The support frame 1 is provided with a CNC panel 15 above the feeding roller shaft 8. The CNC panel 15 can control the working status of the opening device.

[0028] Each of the four corners of the support frame 1 is equipped with a brake caster 16, which makes it easier to guide and limit the opening device.

[0029] Specifically, in this utility model, when making a tear line opening on the packaging bag raw material film, the feeding roller shaft 8 feeds the packaging bag raw material film in sequence, and the packaging bag raw material film passes through the first guide roller shaft 9, the second guide roller shaft 10, the third guide roller shaft 11, the fourth guide roller shaft 12, between the knife holder roller shaft 3 and the limiting roller shaft 7, the fifth guide roller shaft 13 and the discharge roller shaft 14, and is pulled by the traction device. When the motor 4 is working, the motor 4 can drive the knife holder roller shaft 3 to rotate through the transmission of the belt 5. When the knife holder roller shaft 3 rotates, the knife assembly 6 also rotates. During the rotation of the knife assembly 6, the knife assembly 6 makes a tear line opening on the packaging bag raw material film. The first punching knife 63, the second punching knife 64 and the arc-shaped knife 65 sequentially make openings on the packaging bag raw material film, so that a tear line that can be torn in one direction is formed on the packaging bag raw material film.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tear line opening device for a packaging bag, comprising a support frame (1), characterized in that, The support frame (1) is provided with a mounting frame (2) in the middle, and a tool holder roller (3) is provided in the middle of the upper part of the mounting frame (2). A motor (4) is provided below the mounting frame (2). The rotating shaft of the motor (4) is connected to the tool holder roller (3) through a belt (5). A tool assembly (6) is fixedly installed on the tool holder roller (3). The tool assembly (6) includes an arc-shaped mounting plate (61). Arc-shaped connecting plates (62) are provided at both ends of the arc-shaped mounting plate (61) away from the tool holder roller shaft (3). Multiple first drilling tools (63) are provided on the side of the arc-shaped connecting plate (62) away from the arc-shaped mounting plate (61). A second drilling tool (64) is provided on one side of the first drilling tool (63). The second drilling tool (64) is inclined towards the side of the arc-shaped mounting plate (61). The ends of the two arc-shaped connecting plates (62) are fixedly connected by arc-shaped tools (65).

2. The packaging bag tear line opening device according to claim 1, characterized in that, The arc-shaped mounting plate (61) is provided with a plurality of mounting holes (66) arranged in a matrix. The arc-shaped mounting plate (61) is fixedly connected to the tool holder roller shaft (3) by screws inserted into the mounting holes (66).

3. The packaging bag tear line opening device according to claim 1, characterized in that, The mounting bracket (2) is provided with a limiting roller (7) on one side of the tool holder roller (3).

4. The packaging bag tear line opening device according to claim 1, characterized in that, The support frame (1) has a feeding roller shaft (8) on the upper end of the side away from the mounting frame (2).

5. A packaging bag tear line opening device according to claim 4, characterized in that, The mounting frame (2) is provided with a first guide roller shaft (9) at the upper center. The mounting frame (2) is provided with a second guide roller shaft (10) at the upper end of the side away from the feeding roller shaft (8). The second guide roller shaft (10) is provided with a third guide roller shaft (11) below the second guide roller shaft (10). The third guide roller shaft (11) is provided with a fourth guide roller shaft (12) below the third guide roller shaft (11). The mounting frame (2) is provided with a fifth guide roller shaft (13) below the fifth guide roller shaft (13). The mounting frame (2) is provided with a discharge roller shaft (14) below the fifth guide roller shaft (13).

6. A packaging bag tear line opening device according to claim 4, characterized in that, The support frame (1) is provided with a CNC panel (15) above the feeding roller shaft (8).

7. A packaging bag tear line opening device according to claim 1, characterized in that, Brake casters (16) are provided at the four corners below the support frame (1).

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