A label slitting and cutting apparatus

Abstract

The utility model relates to the label cutting field, concretely relates to a label cutting and slitting device, including first cutting roller and second cutting roller, the first cutting roller is covered with cutting knife, the second cutting roller is covered with first sliding sleeve, and the circumference side surface of first sliding sleeve is equipped with annular knife groove, cutting knife includes second sliding sleeve and circular blade, and the blade fixedly connected on second sliding sleeve, and the blade inserts into the knife groove, first sliding sleeve, second sliding sleeve all have the shrink sleeve fixedly on the same axis, and the outside of shrink sleeve is equipped with external thread, and the shrink sleeve is screw connected with fixed cylinder, and the outside of shrink sleeve, the inside of fixed cylinder all are equipped with the inclined plane of mutual cooperation. Through the scheme, the mode that screw is discarded to cutting knife carries out the fixed mode, when cutting knife carries out position adjustment, will not appear the problem that screw falls off.

Description

Technical Field

[0001] This utility model relates to the field of label cutting, specifically to a label cutting and slitting device. Background Technology

[0002] After the label paper is printed, it has multiple repeating label patterns printed on it in its width direction. Therefore, after printing, the label paper needs to be cut into multiple strips using a label cutting and slitting device.

[0003] The current label cutting and slitting device includes a first cutting roller and a second cutting roller. A cutting blade is fixed on the first cutting roller. The cutting blade is circular. The second cutting roller has a circular blade groove that cooperates with the cutting blade. The label paper passes between the first cutting roller and the second cutting roller. As the label paper moves and the first and second cutting rollers rotate, the cutting blade cuts the label paper, thereby cutting the label paper into multiple strips.

[0004] Current label cutting and slitting devices have the following disadvantages: 1. The current cutting blade is fixed to the first cutting roller with screws. When the cutting position needs to be adjusted, the position of the cutting blade needs to be changed along the axial direction of the first cutting roller. The adjustment method is: use a screwdriver to unscrew the screws, then slide the cutting blade on the first cutting roller. After the cutting blade is adjusted to the correct position, it is fixed with screws. Because the screws on the cutting blade need to be unscrewed to adjust its position, if the operation is not done properly, the screws can easily fall into the gaps between the components of the label cutting and slitting device. The gaps are small, and the screws are not easy to remove after falling into the gaps. Screws falling into the gaps between the components may affect the normal operation of other components of the label cutting and slitting device. 2. When the cutting blade cuts the label paper, it presses the label paper down into the blade groove, causing the label paper to bend and affecting its quality. In addition, the label paper entering the blade groove is also not conducive to the normal feeding of the label paper. Utility Model Content

[0005] This utility model aims to provide a label cutting and slitting device that eliminates the need for screws to fix the cutting blade. Instead, it uses a combination of a fixing cylinder and a shrink sleeve to fix the cutting blade on the first cutting roller, thus preventing screws from falling off when adjusting the position of the cutting blade.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a label cutting and slitting device, comprising a first cutting roller and a second cutting roller, a cutting blade sleeved on the first cutting roller, and a first sliding sleeve sleeved on the second cutting roller, wherein an annular groove is provided on the circumferential side of the first sliding sleeve; the cutting blade comprises a second sliding sleeve and a circular blade, the blade being coaxially fixedly connected to the second sliding sleeve and inserted into the groove; a shrink sleeve is coaxially fixed on both the first and second sliding sleeves, the outer side of the shrink sleeve is provided with an external thread, a fixed cylinder is threadedly connected to the shrink sleeve, and the outer side of the shrink sleeve and the inner side of the fixed cylinder are both provided with mutually cooperating inclined surfaces;

[0007] The inner wall of the shrink sleeve connected to the first sliding sleeve is in contact with the circumferential side of the first cutting roller; the inner wall of the shrink sleeve connected to the second sliding sleeve is in contact with the circumferential side of the second cutting roller.

[0008] When the fixing sleeve is tightened, the inclined surface of the fixing sleeve presses against the inclined surface of the shrink sleeve.

[0009] The principle and advantages of this solution are as follows: This solution uses a combination of a fixed cylinder and a shrink sleeve to fix the first and second sliding sleeves. When it is necessary to fix the first and second sliding sleeves, the fixed cylinder is tightened. The fixed cylinder is threaded onto the shrink sleeve, and the inclined surface of the fixed cylinder presses against the inclined surface of the shrink sleeve, causing the shrink sleeve to shrink. The two shrink sleeves press against the surfaces of the first and second cutting rollers respectively, thereby fixing the cutting blade to the first cutting roller and fixing the first sliding sleeve to the second cutting roller.

[0010] When it is necessary to adjust the position of the cutting blade and the first sliding sleeve, loosen the fixing cylinder from the shrink sleeve or remove the fixing sleeve from the shrink sleeve. At this time, the inclined surface of the fixing cylinder no longer presses the inclined surface of the shrink sleeve, and the shrink sleeve no longer tightens and presses against the surface of the first cutting roller and the surface of the second cutting roller. The cutting blade and the first sliding sleeve can slide on the first cutting roller and the second cutting roller respectively.

[0011] In summary, this solution eliminates the need for screws to fix the cutting blade and the first sliding sleeve. Instead, it uses a fixing sleeve and a shrink sleeve to secure them. Adjusting the position of the cutting blade and the first sliding sleeve simply requires loosening or removing the fixing sleeve, making the operation simple and convenient, and preventing screws from falling off. When fixing the first sliding sleeve and the cutting blade, the fixing sleeve is tightened onto the shrink sleeve, again simplifying the process. Furthermore, after removing the fixing sleeve from the shrink sleeve, the two fixing sleeves are respectively fitted onto the first and second cutting rollers, preventing them from falling off.

[0012] Preferably, as an improvement, the shrink sleeve includes multiple arc-shaped shrink portions with gaps between adjacent shrink portions. The arc-shaped shrink portions can fit against the arc-shaped surface of the cutting roller. When the fixing cylinder is tightened, the inclined surface of the fixing cylinder presses against the inclined surface of the shrink sleeve, thereby bringing the multiple shrink portions closer together. The inner walls of the shrink portions are pressed against the first or second cutting roller, thus fixing the cutting blade or the first sliding sleeve. The gaps allow adjacent shrink portions to have space to approach each other.

[0013] Preferably, as an improvement, the external thread on the shrink sleeve connected to the second sliding sleeve is located between the inclined surface of the shrink sleeve and the second sliding sleeve, and the end of the inclined surface of the shrink sleeve away from the second sliding sleeve is a thin end.

[0014] Preferably, as an improvement, the external thread on the shrink sleeve connected to the first sliding sleeve is located between the inclined surface of the shrink sleeve and the first sliding sleeve, and the end of the inclined surface of the shrink sleeve away from the first sliding sleeve is a thin end.

[0015] Preferably, as an improvement, the inner wall of the fixed cylinder is provided with an internal thread, and the end of the inclined surface of the inner wall of the fixed cylinder away from the internal thread is the thick end.

[0016] Preferably, as an improvement, the cutting blade further includes a third sliding sleeve, with the second and third sliding sleeves located on both sides of the blade, and the second and third sliding sleeves clamping and fixing the blade.

[0017] Thus, the second and third sliding sleeves clamp and fix the blade, thereby securing the blade. With the second and third sliding sleeves clamping on both sides of the blade, the blade on the cutting knife is more secure and stable. When the blade needs to be replaced, loosen the fixing sleeve, remove the cutting knife from the first cutting roller, then separate the second and third sliding sleeves, place the new blade between the second and third sliding sleeves, and have the second and third sliding sleeves clamp and fix the new blade. Finally, put the cutting knife on the first cutting roller and tighten the fixing sleeve to fix the cutting knife on the first cutting roller.

[0018] Preferably, as an improvement, the third sliding sleeve, the blade, and the second sliding sleeve are fixed by screws, with the screws inserted from the end of the third sliding sleeve into the blade and the second sliding sleeve.

[0019] Therefore, the third sliding sleeve, the blade, and the second sliding sleeve are fixed together by screws, which is a simple and secure method.

[0020] Preferably, as an improvement, the circumferential side surfaces of the second and third sliding sleeves are both in contact with the circumferential side surface of the first sliding sleeve. Therefore, when the cutting blade cuts the label paper, the label paper passes between the first and second sliding sleeves, and between the first and third sliding sleeves. The label paper portions on both sides of the blade are pressed firmly by the first and second sliding sleeves, and by the first and third sliding sleeves, respectively. This ensures that the label paper is pressed and fixed on both sides of the blade, keeping the label paper surface taut. The blade will not press the label paper down into the cutting groove, preventing it from bending and affecting its quality, thus facilitating normal label paper transport.

[0021] Preferably, as an improvement, the number of screws is multiple, and the multiple screws are evenly distributed around the circumference of the first cutting roller. Attached Figure Description

[0022] Figure 1 This is a perspective view of a label cutting and slitting device.

[0023] Figure 2 for Figure 1 A three-dimensional view of a local structure from another perspective.

[0024] Figure 3 This is a schematic diagram showing the fixed cylinder on the first cutting roller after it has been unscrewed from the second sliding sleeve.

[0025] Figure 4 This is a three-dimensional view of the fixed cylinder. Detailed Implementation

[0026] The following detailed description illustrates the specific implementation method:

[0027] The reference numerals in the accompanying drawings include: first cutting roller 1, second cutting roller 2, first sliding sleeve 3, blade groove 4, third sliding sleeve 5, blade 6, second sliding sleeve 7, fixing sleeve 8, screw 9, shrink sleeve 10, external thread 11, first inclined surface 12, internal thread 13, and second inclined surface 14.

[0028] The basic implementation examples are as follows: Figures 1-4As shown: A label cutting and slitting device includes a frame and a first cutting roller 1 and a second cutting roller 2 rotatably mounted on the frame. The first cutting roller 1 and the second cutting roller 2 are rotatably connected to the frame via bearings. The frame is equipped with a motor for driving the first cutting roller 1 and the second cutting roller 2 to rotate. There can be one or two motors. When there is one motor, both the first cutting roller 1 and the second cutting roller 2 are coaxially fixed with gears. The two gears mesh, and the motor drives one cutting roller to rotate, and the other cutting roller follows suit. When there are two motors, the two motors can coaxially drive the first cutting roller 1 and the second cutting roller 2 to rotate respectively.

[0029] A cutting blade is fitted onto the first cutting roller 1. The cutting blade includes a second sliding sleeve 7, a third sliding sleeve 5, and a circular blade 6. The blade 6 is coaxially fixed between the second sliding sleeve 7 and the third sliding sleeve 5. Specifically, the second sliding sleeve 7, the blade 6, and the third sliding sleeve 5 are all provided with screw holes. The blade 6 is placed between the second sliding sleeve 7 and the third sliding sleeve 5, with the screw holes on the second sliding sleeve 7, the blade 6, and the third sliding sleeve 5 facing each other. Then, screws 9 are screwed from the end of the third sliding sleeve 5 into the screw holes of the second sliding sleeve 7, the blade 6, and the third sliding sleeve 5, thereby fixing the second sliding sleeve 7, the blade 6, and the third sliding sleeve 5. In this embodiment, each cutting blade has four screws 9, which are evenly distributed around the circumference of the first cutting roller 1.

[0030] The second cutting roller 2 is fitted with a first sliding sleeve 3, and the circumferential side of the first sliding sleeve 3 is provided with an annular knife groove 4; the blade 6 is inserted into the knife groove 4. The circumferential side of the second sliding sleeve 7 is in contact with the circumferential side of the first sliding sleeve 3, and the circumferential side of the third sliding sleeve 5 is in contact with the circumferential side of the first sliding sleeve 3.

[0031] In this embodiment, a shrink sleeve 10 is coaxially fixed on both the first sliding sleeve 3 and the second sliding sleeve 7. The outer surface of the shrink sleeve 10 is provided with an external thread 11, and a fixed cylinder 8 is threadedly connected to the shrink sleeve 10. Both the outer surface of the shrink sleeve 10 and the inner surface of the fixed cylinder 8 are provided with mutually cooperating inclined surfaces. The shrink sleeve 10 and fixed cylinder 8 on the first sliding sleeve 3 and the shrink sleeve 10 and fixed cylinder 8 on the second sliding sleeve 7 have the same structure. This embodiment uses the shrink sleeve 10 and fixed cylinder 8 on the second sliding sleeve 7 as an example for explanation. Figure 3As shown, a shrink sleeve 10 is integrally formed on the right end of the second sliding sleeve 7. The shrink sleeve 10 specifically includes three arc-shaped shrinking portions, with a gap between adjacent shrinking portions. The three shrinking portions surround the first cutting roller 1, and the inner walls of the three shrinking portions are in contact with the circumferential side surface of the first cutting roller 1 (similarly, the inner wall of the shrink sleeve 10 connected to the second sliding sleeve 7 is in contact with the circumferential side surface of the second cutting roller 2). The shrink sleeve 10 has an external thread 11 and a first inclined surface 12. The external thread 11 is located between the first inclined surface 12 and the second sliding sleeve 7. The end of the first inclined surface 12 away from the second sliding sleeve 7 is thinner (the thickness of the end of the first inclined surface 12 away from the second sliding sleeve 7 is less than the thickness of the end of the first inclined surface 12 close to the second sliding sleeve 7). Similarly, the shrink sleeve 10 on the first sliding sleeve 3 is also located at the right end of the first sliding sleeve 3, and its structure is the same as that of the shrink sleeve 10 on the second sliding sleeve 7. This embodiment will not elaborate further. For the fixed cylinder 8, combined with... Figure 4 As shown, the inner side of the fixing cylinder 8 is provided with an internal thread 13, which mates with the external thread 11. The inner side of the fixing cylinder 8 is also provided with a second inclined surface 14, the end of which is thicker than the end of the second inclined surface 14 closest to the internal thread 13 (the thickness of the end of the second inclined surface 14 furthest from the internal thread 13 is greater than the thickness of the end of the second inclined surface 14 closest to the internal thread 13). The fixing cylinder 8 is threaded onto the shrink sleeve 10. After the fixing cylinder 8 is threaded onto the shrink sleeve 10 (internal thread 13 and external thread 11 are connected), by tightening the fixing cylinder 8, the fixing cylinder 8... Figure 2 Moving to the left, the second inclined plane 14 presses against the first inclined plane 12, causing the shrink sleeve 10 to shrink. The two shrink sleeves 10 are then tightened onto the first cutting roller 1 or the second cutting roller 2, respectively, thus fixing the cutting blade to the first cutting roller 1 and the first sliding sleeve 3 to the second cutting roller 2. When the fixing cylinder 8 is loosened or unscrewed from the shrink sleeve 10, the fixing cylinder 8... Figure 2 Moving the blade to the right, the second inclined plane 14 no longer presses against the first inclined plane 12, and the two shrink sleeves 10 are no longer tightened on the first cutting roller 1 or the second cutting roller 2. At this time, the cutting blade can slide on the first cutting roller 1, and the first sliding sleeve 3 can slide on the second cutting roller 2, thereby adjusting the position of the cutting blade to cut different types of labels into strips. After the position of the cutting blade is adjusted, the fixing cylinder 8 is tightened onto the corresponding shrink sleeve 10.

[0032] In summary, this embodiment eliminates the need for screws to fix the cutting blade and the first sliding sleeve 3. Instead, it uses a fixing cylinder 8 and a shrink sleeve 10 to fix the cutting blade and the first sliding sleeve 3. When adjusting the position of the cutting blade and the first sliding sleeve 3, simply loosen the fixing cylinder 8 or unscrew it from the shrink sleeve 10. This operation is simple and convenient, and there is no risk of screws falling off. When it is necessary to fix the first sliding sleeve 3 and the cutting blade, simply tighten the fixing cylinder 8 onto the shrink sleeve 10. This operation is also simple and convenient. Furthermore, after the fixing cylinder 8 is unscrewed from the shrink sleeve 10, the two fixing cylinders 8 are respectively fitted onto the first cutting roller 1 and the second cutting roller 2, and the fixing cylinders 8 will not fall off the first cutting roller 1 and the second cutting roller 2.

[0033] After the cutting blade has been used for a period of time, the blade 6 on the cutting blade needs to be replaced. At this time, loosen the fixing sleeve 8 on the first cutting roller 1 and the second cutting roller 2. The cutting blade and the first sliding sleeve 3 are no longer fixed to the first cutting roller 1 and the second cutting roller 2 respectively. Place the cutting blade and the first sliding sleeve 3 on... Figure 1 Slide the blade to the left to remove the cutting blade and the first sliding sleeve 3 from the first cutting roller 1 and the second cutting roller 2, respectively. After the cutting blade and the first sliding sleeve 3 are removed, since the first cutting roller 1 and the second cutting roller 2 are no longer restrictive, the cutting blade and the first sliding sleeve 3 can be separated, the blade 6 is taken out from the blade groove 4, and then the screw 9 is unscrewed to separate the second sliding sleeve 7 and the third sliding sleeve 5. The old blade is replaced with a new blade, and the new blade 6 is placed between the second sliding sleeve 7 and the third sliding sleeve 5, and the second sliding sleeve 7 and the third sliding sleeve 5 clamp and fix the new blade 6. The screw 9 is fixed on the second sliding sleeve 7, the blade 6 and the third sliding sleeve 5. Finally, the cutting blade and the first sliding sleeve 3 are put together and respectively put on the first cutting roller 1 and the second cutting roller 2, and the corresponding fixing sleeves 8 are tightened, thereby fixing the cutting blade on the first cutting roller 1 and fixing the first sliding sleeve 3 on the second cutting roller 2.

[0034] During label cutting, the label passes between the first sliding sleeve 3 and the second sliding sleeve 7, and between the first sliding sleeve 3 and the third sliding sleeve 5. The label portions on both sides of the blade 6 are pressed by the first sliding sleeve 3 and the second sliding sleeve 7, and by the first sliding sleeve 3 and the third sliding sleeve 5, respectively. In this way, when the first cutting roller 1 drives the blade 6 to rotate and cut the label, the portions of the label on both sides of the blade 6 are pressed and fixed, thereby making the cut paper taut. The blade 6 will not press the label into the cut groove 4, so the label will not enter the cut groove 4 and bend, which will not affect the quality of the label and facilitates the normal conveying of the label.

[0035] Figure 1There are three cutting blades in the middle. Therefore, when the label paper passes between the first cutting roller 1 and the second cutting roller 2, if all three cutting blades act on the label paper, the three cutting blades will cut the label paper into four strips. Of course, the number of cutting blades on the first cutting roller 1 can be set according to the actual situation, for example, to two or one. When the number of cutting blades changes, the number of first sliding sleeves 3 changes accordingly.

[0036] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A label cutting and slitting device, comprising a first cutting roller and a second cutting roller, wherein a cutting blade is sleeved on the first cutting roller, characterized in that: The second cutting roller is fitted with a first sliding sleeve, and the circumferential side of the first sliding sleeve is provided with an annular knife groove; the cutting knife includes a second sliding sleeve and a circular blade, the blade is coaxially fixedly connected to the second sliding sleeve, and the blade is inserted into the knife groove; both the first sliding sleeve and the second sliding sleeve are coaxially fixed with shrink sleeves, the outer side of the shrink sleeve is provided with external threads, the shrink sleeve is threadedly connected with a fixed cylinder, and the outer side of the shrink sleeve and the inner side of the fixed cylinder are provided with mutually cooperating inclined surfaces; The inner wall of the shrink sleeve connected to the first sliding sleeve is in contact with the circumferential side of the first cutting roller; the inner wall of the shrink sleeve connected to the second sliding sleeve is in contact with the circumferential side of the second cutting roller. When the fixed cylinder is tightened, the inclined surface of the fixed cylinder presses against the inclined surface of the shrink sleeve.

2. The label cutting and slitting device according to claim 1, characterized in that: The shrink sleeve includes multiple arc-shaped shrink sections with gaps between adjacent shrink sections.

3. The label cutting and slitting device according to claim 1, characterized in that: The external thread on the shrink sleeve connected to the second sliding sleeve is located between the inclined surface of the shrink sleeve and the second sliding sleeve, and the end of the inclined surface of the shrink sleeve away from the second sliding sleeve is a thin end.

4. The label cutting and slitting device according to claim 1, characterized in that: The external thread on the shrink sleeve connected to the first sliding sleeve is located between the inclined surface of the shrink sleeve and the first sliding sleeve, and the end of the inclined surface of the shrink sleeve away from the first sliding sleeve is a thin end.

5. A label cutting and slitting device according to claim 3 or 4, characterized in that: The inner wall of the fixed cylinder is provided with internal threads, and the end of the inclined surface of the inner wall of the fixed cylinder away from the internal threads is the thick end.

6. A label cutting and slitting device according to claim 1, characterized in that: The cutting blade also includes a third sliding sleeve. The second and third sliding sleeves are located on both sides of the blade, and the second and third sliding sleeves clamp and fix the blade.

7. A label cutting and slitting device according to claim 6, characterized in that: The third sliding sleeve, the blade, and the second sliding sleeve are fixed by screws, with the screws inserted from the end of the third sliding sleeve into the blade and the second sliding sleeve.

8. A label cutting and slitting device according to claim 6, characterized in that: The circumferential side surfaces of the second and third sliding sleeves are both in contact with the circumferential side surfaces of the first sliding sleeve.

9. A label cutting and slitting device according to claim 7, characterized in that: The number of screws is multiple, and the multiple screws are evenly distributed around the circumference of the first cutting roller.

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