Roll paper transverse cutting mechanism

Abstract

The utility model discloses a roll paper transverse cutting mechanism which comprises a machine frame, a slitting mechanism, a lifting frame, a supporting roller and a height adjusting mechanism, the slitting mechanism is installed in the machine frame, the lifting frame is arranged below the slitting mechanism, and the supporting roller is rotationally connected in the lifting frame. A height adjusting mechanism used for driving the lifting frame and the supporting roller to move up and down is installed in the rack, the height adjusting mechanism comprises a threaded sleeve, a threaded rod, a second motor, a third gear and a fourth gear, the threaded sleeve is rotationally connected into the rack, the threaded rod penetrating through the threaded sleeve is installed in the threaded sleeve, and the top of the threaded rod is fixed to the lifting frame; the second motor is fixed in the machine frame, a third gear is installed on an output shaft of the second motor, a fourth gear meshed with the third gear is installed on one side of the third gear, and the fourth gear is installed on the threaded sleeve. The distance between the supporting roller and the cutting blade is convenient to adjust, and sufficient cutting pressure can be conveniently provided for paper.

Description

Technical Field

[0001] The utility model relates to the technical field of web slitting, in particular to a web cross-cutting mechanism. Background Art

[0002] When processing web paper, it is necessary to slit a large roll of web paper into multiple small rolls of web paper. Currently, a slitter is used to slit the web paper. However, in the existing slitter, the cross-cutting mechanism uses a circular blade to rotate and cut the paper. Since the circular blade will be worn after long-term use, its outer diameter becomes smaller, resulting in an increase in the gap between the circular blade and the support roller for supporting the paper, and thus the pressure for the circular blade to press the paper onto the support roller is insufficient, affecting the cutting effect. Therefore, in view of the above situation, there is an urgent need to develop a web cross-cutting mechanism that is convenient for adjusting the distance between the support roller and the cutting blade and is convenient for providing sufficient cutting pressure for the paper, so as to overcome the deficiencies in current practical applications and meet the current requirements. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a web cross-cutting mechanism to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A web cross-cutting mechanism includes a frame, a slitting mechanism, a lifting frame, a support roller and a height adjustment mechanism. The slitting mechanism is installed inside the frame. A lifting frame is arranged below the slitting mechanism. A support roller is rotatably connected inside the lifting frame. A height adjustment mechanism for driving the lifting frame and the support roller to move up and down is installed inside the frame. The height adjustment mechanism includes: a threaded sleeve, a threaded rod, a second motor, a third gear and a fourth gear. The threaded sleeve is rotatably connected inside the frame. A threaded rod passing through it is installed inside the threaded sleeve. The top of the threaded rod is fixed to the lifting frame. The second motor is fixed inside the frame. A third gear is installed on the output shaft of the second motor. A fourth gear meshing with it is installed on one side of the third gear. The fourth gear is installed on the threaded sleeve.

[0006] Preferably: The support roller is made of high manganese steel.

[0007] Preferably: A slider is fixed on each of the left and right sides of the lifting frame. A slide rail is fixed on each of the left and right sides inside the frame. Each slider is slidably installed on a slide rail.

[0008] Preferably, the slitting mechanism includes: a transmission shaft, cutting blades, a first motor, a first gear, and a second gear. The transmission shaft is rotatably connected within the frame. A plurality of cutting blades are mounted on the transmission shaft. The first motor is fixed to the frame. A first gear is mounted on the output shaft of the first motor. A second gear meshing with the first gear is mounted on one side of the first gear, and the second gear is mounted on the transmission shaft.

[0009] The beneficial effects of the present utility model are as follows: When using this web slitting mechanism, the paper is passed through between the support roller and the cutting blades. The first motor drives the first gear and the second gear to rotate. The rotation of the second gear drives the transmission shaft and the cutting blades to rotate, and the paper is cut by the cutting blades. When the cutting blades are worn after long-term use, the second motor drives the third gear and the fourth gear to rotate. The rotation of the fourth gear drives the threaded sleeve to rotate. The rotation of the threaded sleeve drives the threaded rod to move upward. The threaded rod drives the lifting frame and the support roller to move upward, thereby reducing the distance between the support roller and the cutting blades to provide sufficient cutting pressure for paper cutting. In summary, the present utility model is convenient for adjusting the distance between the support roller and the cutting blades and is convenient for providing sufficient cutting pressure for the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0011] Figure 2 is a schematic diagram of the use state of the present utility model.

[0012] Figure 3 is a schematic diagram of a partial structure of the present utility model Figure 1 。

[0013] Figure 4 is a schematic diagram of a partial structure of the present utility model Figure 2 。

[0014] Legend Explanation:

[0015] 1. Frame; 2. Slitting mechanism; 201. Transmission shaft; 202. Cutting blades; 203. First motor; 204. First gear; 205. Second gear; 3. Lifting frame; 301. Slide block; 302. Slide rail; 4. Support roller; 5. Height adjustment mechanism; 501. Threaded sleeve; 502. Threaded rod; 503. Second motor; 504. Third gear; 505. Fourth gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0017] The following gives specific embodiments.

[0018] See Figures 1 to 4 , in the embodiment of the present utility model, a web cross-cutting mechanism includes a frame 1, a cutting mechanism 2, a lifting frame 3, a support roller 4, and a height adjustment mechanism 5. The cutting mechanism 2 is installed inside the frame 1. A lifting frame 3 is arranged below the cutting mechanism 2. A support roller 4 is rotatably connected inside the lifting frame 3. The support roller 4 is made of high manganese steel, so that it has good wear resistance. A slider 301 is fixed on each of the left and right sides of the lifting frame 3. A slide rail 302 is fixed on each of the left and right sides inside the frame 1. Each slider 301 is slidably installed on a slide rail 302. A height adjustment mechanism 5 for driving the lifting frame 3 and the support roller 4 to move up and down is installed inside the frame 1. During use, the paper is passed between the cutting mechanism 2 and the support roller 4, and the paper is cut into multiple portions by the cutting mechanism 2.

[0019] The cutting mechanism 2 includes: a transmission shaft 201, cutting blades 202, a first motor 203, a first gear 204, and a second gear 205. The transmission shaft 201 is rotatably connected inside the frame 1. A plurality of cutting blades 202 are installed on the transmission shaft 201. The first motor 203 is fixed on the frame 1. A first gear 204 is installed on the output shaft of the first motor 203. A second gear 205 meshing with the first gear 204 is installed on one side of the first gear 204. The second gear 205 is installed on the transmission shaft 201. During use, the first motor 203 drives the first gear 204 and the second gear 205 to rotate. The rotation of the second gear 205 drives the transmission shaft 201 and the cutting blades 202 to rotate, and the paper is cut by the cutting blades 202.

[0020] The height adjustment mechanism 5 includes: a threaded sleeve 501, a threaded rod 502, a second motor 503, a third gear 504, and a fourth gear 505. The threaded sleeve 501 is rotatably connected to the frame 1. A threaded rod 502 passing through it is installed inside the threaded sleeve 501. The top of the threaded rod 502 is fixed to the lifting frame 3. The second motor 503 is fixed inside the frame 1. A third gear 504 is installed on the output shaft of the second motor 503. A fourth gear 505 meshing with the third gear 504 is installed on one side of the third gear 504. The fourth gear 505 is installed on the threaded sleeve 501. During use, the second motor 503 drives the third gear 504 and the fourth gear 505 to rotate. The rotation of the fourth gear 505 drives the threaded sleeve 501 to rotate. The rotation of the threaded sleeve 501 drives the threaded rod 502 to move up and down. The threaded rod 502 drives the lifting frame 3 and the support roller 4 to move up and down, thereby adjusting the distance between the support roller 4 and the cutting blade 202.

[0021] Working principle: For this web cross-cutting mechanism, during use, the paper is passed through between the support roller 4 and the cutting blade 202. The first motor 203 drives the first gear 204 and the second gear 205 to rotate. The rotation of the second gear 205 drives the transmission shaft 201 and the cutting blade 202 to rotate. The paper is cut by the cutting blade 202. When the cutting blade 202 is worn after long-term use, the second motor 503 drives the third gear 504 and the fourth gear 505 to rotate. The rotation of the fourth gear 505 drives the threaded sleeve 501 to rotate. The rotation of the threaded sleeve 501 drives the threaded rod 502 to move upward. The threaded rod 502 drives the lifting frame 3 and the support roller 4 to move upward, thereby reducing the distance between the support roller 4 and the cutting blade 202 to provide sufficient cutting pressure for paper cutting.

[0022] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A web cross-cutting mechanism, characterized in that, It includes a frame (1), a slitting mechanism (2), a lifting frame (3), a support roller (4) and a height adjustment mechanism (5). The slitting mechanism (2) is installed inside the frame (1). A lifting frame (3) is arranged below the slitting mechanism (2). A support roller (4) is rotatably connected inside the lifting frame (3). A height adjustment mechanism (5) for driving the lifting frame (3) and the support roller (4) to move up and down is installed inside the frame (1). The height adjustment mechanism (5) includes: a threaded sleeve (501), a threaded rod (502), a second motor (503), a third gear (504) and a fourth gear (505). The threaded sleeve (501) is rotatably connected inside the frame (1). A threaded rod (502) passing through it is installed inside the threaded sleeve (501). The top of the threaded rod (502) is fixed to the lifting frame (3). The second motor (503) is fixed inside the frame (1). A third gear (504) is installed on the output shaft of the second motor (503). A fourth gear (505) meshing with it is installed on one side of the third gear (504). The fourth gear (505) is installed on the threaded sleeve (501).

2. The web slitting mechanism according to claim 1, characterized in that, The support roller (4) is made of high manganese steel.

3. The web slitting mechanism according to claim 1, characterized in that, A slider (301) is fixed on each of the left and right sides of the lifting frame (3). A slide rail (302) is fixed on each of the left and right sides inside the frame (1). Each slider (301) is slidably installed on a slide rail (302).

4. The web cross-cutting mechanism according to claim 1, characterized in that, The slitting mechanism (2) includes: a transmission shaft (201), cutting blades (202), a first motor (203), a first gear (204) and a second gear (205). The transmission shaft (201) is rotatably connected inside the frame (1). A plurality of cutting blades (202) are installed on the transmission shaft (201). The first motor (203) is fixed on the frame (1). A first gear (204) is installed on the output shaft of the first motor (203). A second gear (205) meshing with it is installed on one side of the first gear (204). The second gear (205) is installed on the transmission shaft (201).

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