Special blade for cutting packaging film of packaging machine

Abstract

The special blade for cutting the packaging film of the packaging machine comprises a blade body and further comprises a cutting tooth part, the cutting tooth part is located in the middle of the upper portion of the blade body, and the cutting tooth part is arranged in a line shape. The large and small tooth structure is arranged on the cutting tooth part, the large and small tooth structure is composed of large puncturing teeth and small expanding teeth, the large puncturing teeth and the small expanding teeth are sequentially arranged in a staggered mode, and the large puncturing teeth are higher than the small expanding teeth; the cutting edges are located on the single side of the large and small tooth structure and located on the same side of each large puncturing tooth and each small expanding tooth, during cutting, the large puncturing teeth firstly make contact with a film for puncturing, then the large puncturing teeth conduct puncturing, then the small expanding teeth conduct puncturing and then expand leftwards and rightwards, resistance is reduced, the film is prevented from being stretched after being heated, and the effect of rapidly cutting the film is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machine knives, in particular to a special blade for cutting packaging films of a packaging machine. Background Art

[0002] When the packaging machine is sealing and cutting, it needs to cut the film for packaging operation. However, when the existing packaging machine's cutter heats and cuts the film, it is difficult to quickly cut the film, resulting in the film being heated by the packaging machine during packaging, so that the film is stretched after heating, affecting the film cutting effect. Summary of the invention

[0003] In order to solve the technical defects in the prior art, the utility model provides a special blade for cutting packaging film of a packaging machine.

[0004] The technical solution adopted by the utility model is: a special blade for cutting packaging film of a packaging machine includes a blade body and also includes:

[0005] A cutting tooth portion, wherein the cutting tooth portion is located in the middle of the upper portion of the blade body and is arranged in a straight line;

[0006] The large and small tooth structure is arranged on the cutting tooth part, and the large and small tooth structure is composed of piercing large teeth and expanding small teeth. The piercing large teeth and the expanding small teeth are arranged alternately in sequence, and the height of the piercing large teeth is higher than that of the expanding small teeth;

[0007] The blade is located on one side of the large and small tooth structures, and the blade is located on the same side of each piercing large tooth and the expanding small tooth.

[0008] The height of the piercing teeth is flush with the upper edge of the cutting teeth.

[0009] The height of the extended small teeth is 1 / 2 of the height of the piercing large teeth.

[0010] The height of the extended small teeth is 1 / 3 of the height of the piercing large teeth.

[0011] The utility model also comprises a knife seat, and the knife seat is arranged at the bottom of the blade body.

[0012] The blade seat is arranged in the middle of the bottom of the blade body.

[0013] There are two blade seats, which are respectively arranged on two sides of the bottom of the blade body.

[0014] The knife seat is also provided with a mounting hole.

[0015] The blade is arc-shaped.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a special blade for cutting packaging film of a packaging machine, comprising a blade body and a cutting tooth portion, wherein the cutting tooth portion is located in the middle of the upper part of the blade body, and the cutting tooth portion is arranged in a straight line; a large and small tooth structure is arranged on the cutting tooth portion, and the large and small tooth structure is composed of a piercing large tooth and an expanding small tooth, and the piercing large tooth and the expanding small tooth are arranged alternately in sequence, and the height of the piercing large tooth is higher than that of the expanding small tooth; the blade is located on a single side of the large and small tooth structure, and the blade is located on the same side of each piercing large tooth and the expanding small tooth, and when cutting, the piercing large tooth first contacts the film for piercing, and after the piercing large tooth pierces, the expanding small tooth then expands to the left and right after piercing, thereby reducing resistance and preventing the film from being stretched after being heated, thereby achieving the effect of quickly cutting the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of Example 1 of the utility model.

[0018] Figure 2 This is a schematic structural diagram of Example 2 of the utility model.

[0019] Figure 3 This is a schematic structural diagram of Example 3 of the utility model.

[0020] Among them, 1-switch body, 2-cutting tooth part, 3-piercing large tooth, 4-expanding small tooth, 5-blade, 6-blade seat, 7-installation hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] A special blade for cutting packaging film of a packaging machine comprises a blade body 1, and also comprises a cutting tooth portion 2, wherein the cutting tooth portion 2 is located in the middle of the upper part of the blade body 1, and the cutting tooth portion 2 is arranged in a straight line; a large and small tooth structure, wherein the large and small tooth structure is arranged on the cutting tooth portion 2, and the large and small tooth structure is composed of a piercing large tooth 3 and an extended small tooth 4, wherein the piercing large tooth 3 and the extended small tooth 4 are arranged alternately in sequence, and the height of the piercing large tooth 3 is higher than the extended small tooth 4; a blade 5, wherein the blade 5 is arc-shaped. The blade 5 is located on one side of the large and small tooth structure, and the blade 5 is located on the same side of each piercing large tooth 3 and the extended small tooth 4. The height of the piercing large tooth 3 is flush with the upper edge of the cutting tooth portion 2. The height of the extended small tooth 4 is 1 / 2 or 1 / 3 of the height of the piercing large tooth 3. A knife seat 6 is also included, and the knife seat 6 is arranged at the bottom of the blade body 1. There are two knife seats 6, which are arranged on both sides of the bottom of the blade body 1 respectively. A mounting hole 7 is also provided on the knife seat 6. When cutting, the large puncture teeth first contact the film to puncture, and then the small teeth expand to the left and right after puncturing, reducing resistance to prevent the film from being stretched after being heated, so as to achieve the effect of quickly cutting the film.

[0024] Example 2

[0025] A special blade for cutting packaging film of a packaging machine comprises a blade body 1, a cutting tooth portion 2, the cutting tooth portion 2 is located in the middle of the upper part of the blade body 1, and the cutting tooth portion 2 is arranged in a straight line; a large and small tooth structure, the large and small tooth structure is arranged on the cutting tooth portion 2, the large and small tooth structure is composed of a piercing large tooth 3 and an extended small tooth 4, the piercing large tooth 3 and the extended small tooth 4 are arranged alternately in sequence, and the height of the piercing large tooth 3 is higher than the extended small tooth 4; a blade 5, the blade 5 is arc-shaped. The blade 5 is located on one side of the large and small tooth structure, and the blade 5 is located on the same side of each piercing large tooth 3 and the extended small tooth 4. The height of the piercing large tooth 3 is flush with the upper edge of the cutting tooth portion 2. The height of the extended small tooth 4 is 1 / 2 or 1 / 3 of the height of the piercing large tooth 3. A knife seat 6 is also included, and the knife seat 6 is arranged at the bottom of the blade body 1. The knife seat 6 is arranged in the middle of the bottom of the blade body 1. The knife seat 6 is also provided with a mounting hole 7. When cutting, the large puncture teeth first contact the film to puncture, and then the small teeth expand to the left and right after puncturing, reducing resistance to prevent the film from being stretched after being heated, so as to achieve the effect of quickly cutting the film.

[0026] Example 3

[0027] A special blade for cutting packaging film of a packaging machine comprises a blade body 1, and also comprises a cutting tooth portion 2, wherein the cutting tooth portion 2 is located in the middle of the upper part of the blade body 1, and the cutting tooth portion 2 is arranged in a straight line; a large and small tooth structure, wherein the large and small tooth structure is arranged on the cutting tooth portion 2, and the large and small tooth structure is composed of a piercing large tooth 3 and an extended small tooth 4, wherein the piercing large tooth 3 and the extended small tooth 4 are arranged alternately in sequence, and the height of the piercing large tooth 3 is higher than the extended small tooth 4; a blade 5, wherein the blade 5 is arc-shaped. The blade 5 is located on one side of the large and small tooth structure, and the blade 5 is located on the same side of each piercing large tooth 3 and the extended small tooth 4. The height of the piercing large tooth 3 is flush with the upper edge of the cutting tooth portion 2. The height of the extended small tooth 4 is 1 / 2 or 1 / 3 of the height of the piercing large tooth 3. It also comprises mounting holes 7 arranged at both ends of the blade body 1. When cutting, the large puncture teeth first contact the film to puncture, and then the small teeth expand to the left and right after puncturing, reducing resistance to prevent the film from being stretched after being heated, so as to achieve the effect of quickly cutting the film.

[0028] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

[0029] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A special blade for cutting packaging film of a packaging machine, comprising a blade body (1), characterized in that: Also includes: A cutting tooth portion (2), wherein the cutting tooth portion (2) is located in the middle of the upper portion of the blade body (1), and the cutting tooth portion (2) is arranged in a straight line; A large and small tooth structure, wherein the large and small tooth structure is arranged on the cutting tooth portion (2), and the large and small tooth structure is composed of a piercing large tooth (3) and an expanding small tooth (4), wherein the piercing large tooth (3) and the expanding small tooth (4) are arranged alternately in sequence, and the height of the piercing large tooth (3) is higher than that of the expanding small tooth (4); A blade (5), wherein the blade (5) is located on a single side of the large and small tooth structures, and the blade (5) is located on the same side of each piercing large tooth (3) and the expanding small tooth (4).

2. The special blade for cutting packaging film of packaging machine according to claim 1, characterized in that: The height of the large piercing teeth (3) is flush with the upper edge of the cutting teeth (2).

3. The special blade for cutting packaging film of packaging machine according to claim 2, characterized in that: The height of the small expansion teeth (4) is 1 / 2 of the height of the large puncture teeth (3).

4. The special blade for cutting packaging film of a packaging machine according to claim 2, characterized in that: The height of the small expansion teeth (4) is 1 / 3 of the height of the large puncture teeth (3).

5. The special blade for cutting packaging film of packaging machine according to claim 1, characterized in that: It also includes a blade seat (6), wherein the blade seat (6) is arranged at the bottom of the blade body (1).

6. The special blade for cutting packaging film of packaging machine according to claim 5, characterized in that: The blade seat (6) is arranged in the middle of the bottom of the blade body (1).

7. The special blade for cutting packaging film of a packaging machine according to claim 5, characterized in that: There are two blade seats (6), which are respectively arranged on two sides of the bottom of the blade body (1).

8. The special blade for cutting packaging film of a packaging machine according to claim 5, characterized in that: The knife seat (6) is also provided with a mounting hole (7).

9. The special blade for cutting packaging film of a packaging machine according to claim 1, characterized in that: The blade (5) is arc-shaped.

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