Cutting device

Abstract

The utility model discloses a cutting device, which relates to the technical field of cutting and comprises a U-shaped support, a first roller, a first power component, a second roller and a second power component. The second roller is rotationally arranged in the U-shaped support, the first power assembly is arranged on the outer wall of the U-shaped support and used for driving the second roller, multiple rows of cutting grooves are arrayed in the outer wall of the second roller in the axis direction of the second roller, and in any two rows of cutting grooves, the distances of the cutting groove arrays are different; the first roller is horizontally arranged in the U-shaped support and located above the second roller, a plurality of blades are arrayed on the outer wall of the first roller, the positions of the blades correspond to the positions of one row of cutting grooves, the second power assembly is arranged on the side wall of the U-shaped support, and the second power assembly is connected with the first roller and used for adjusting the height of the first roller. The blade is located in the cutting groove to cut the label paper conveyed on the surface of the second roller, the cutting groove can effectively prevent the cutting edge of the blade from being damaged, and it is guaranteed that the blade smoothly cuts the label paper.

Description

Technical Field

[0001] This utility model relates to the field of cutting technology, and in particular to a cutting device. Background Technology

[0002] Taking label production as an example, the processing flow includes printing, gluing, die-cutting, waste removal, and cutting into strips. Regarding the strip cutting step, CN220074894U discloses a label slitting device. The cutting roller, through a pull rod, bearing seat, and spring, maintains a constant tendency to move towards the support roller during the cutting process, thus maintaining pressure between the cutting roller and the support roller, allowing the cutter to completely cut through the label. Secondly, by setting up a cutting roller lifting component in conjunction with a vertically movable cutting roller, the cutting roller can be lifted, maintaining a certain distance between the cutting roller and the support roller, facilitating the passage of wide labels. The above solution has two problems: ① The cutting roller uses its own weight and the spring force to generate pressure between the cutter and the support roller to cut the label paper. If the pressure is too high, it will damage the blade; if the pressure is too low, it cannot cut the label paper. Therefore, the cutting method should be improved. ② Although the cutting roller can be lifted by the cutting roller lifting component, the lifting distance is too small, still not conducive to the passage of wide labels. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a cutting device that avoids damaging the blade.

[0004] In order to achieve the purpose of this utility model, the following solution is proposed:

[0005] A cutting device includes a U-shaped support, a first roller, a first power assembly, a second roller, and a second power assembly.

[0006] The second roller is rotatably mounted inside the U-shaped bracket, and the first power assembly is mounted on the outer wall of the U-shaped bracket. It is used to drive the second roller. The outer wall of the second roller has multiple rows of cutting grooves arranged along its axial direction. The spacing of the cutting groove array is different in any two rows of cutting grooves.

[0007] The first roller is horizontally positioned inside the U-shaped bracket and above the second roller. The outer wall of the first roller has multiple blades arranged in an array, with the position of each blade corresponding to the position of one of the cutting grooves. The second power assembly is located on the side wall of the U-shaped bracket and is connected to the first roller to adjust its height.

[0008] Furthermore, the second roller is detachably rotatably mounted within the U-shaped bracket.

[0009] Furthermore, the first power component is set as the first motor.

[0010] Furthermore, the second power assembly includes a second motor, a lead screw, and a column. Both ends of the first roller are provided with sliders, and both sides of the U-shaped bracket are provided with through slots. The lead screw is rotatably located in one of the through slots, and one of the sliders is threadedly connected to the lead screw. The second motor is located at the top of the U-shaped bracket, and its output shaft is used to drive the lead screw. The column is fixedly located in another through slot, and the other slider slides in cooperation with the column.

[0011] Furthermore, it also includes two baffles symmetrically arranged on both sides of the first roller. Each baffle has a support block at the top of both ends. Each side wall of the U-shaped bracket has two sliding grooves located on both sides of the through groove. Vertical guide rods are provided in the sliding grooves. The support blocks are located in the corresponding sliding grooves and are slidably engaged with the corresponding guide rods. A crossbar is provided on the outside of the slider. When the crossbar rises with the first roller and contacts the two support blocks, the bottom surface of the baffle is lower than the blade.

[0012] Furthermore, a spring is provided on the outer periphery of the guide rod, with a U-shaped bracket and a support block connected to the top and bottom of the spring, respectively.

[0013] The beneficial effects of this utility model are as follows: multiple rows of cutting grooves are provided on the outer wall of the second roller, and the blade is located in the cutting groove to cut the label paper conveyed on the surface of the second roller. The cutting groove can effectively avoid damaging the blade edge and ensure that the blade can cut the label paper smoothly. Attached Figure Description

[0014] Figure 1 A structural diagram of the cutting device is shown;

[0015] Figure 2 A front view of the cutting device is shown;

[0016] Figure 3 A structural diagram of a cutting device with a baffle is shown. Detailed Implementation

[0017] like Figure 1 , Figure 2 As shown, this embodiment provides a cutting device, including a U-shaped bracket 5, a first roller 1, a first power assembly 3, a second roller 2, and a second power assembly 4.

[0018] Specifically, the second roller 2 is rotatably mounted inside the U-shaped bracket 5, and the first power component 3 is located on the outer wall of the U-shaped bracket 5. It is used to drive the second roller 2. There are many ways to implement the first power component 3. In this embodiment, the first power component 3 is set as a first motor. The outer wall of the second roller 2 has four rows of cutting grooves 21 arranged along its axial direction. The spacing between any two rows of cutting grooves 21 is different. For example, in the first row of cutting grooves 21, the spacing between two adjacent cutting grooves 21 is 10cm; in the second row of cutting grooves 21, the spacing between two adjacent cutting grooves 21 is 12cm; in the third row of cutting grooves 21, the spacing between two adjacent cutting grooves 21 is 14cm; and in the fourth row of cutting grooves 21, the spacing between two adjacent cutting grooves 21 is 16cm.

[0019] Specifically, the first roller 1 is horizontally positioned within the U-shaped bracket 5, above the second roller 2. The outer wall of the first roller 1 has an array of multiple blades 11, with each blade 11 corresponding to a row of cutting grooves 21 on the outer wall of the second roller 2. The blades 11 are located within these cutting grooves, cutting the label paper into strips during the label paper feeding process. The cutting grooves 21 effectively prevent damage to the blades 11 and ensure smooth cutting of the label paper.

[0020] Specifically, before cutting begins, the label paper needs to be passed between the first roller 1 and the second roller 2. Therefore, in this embodiment, a second power assembly 4 is provided on the side wall of the U-shaped bracket 5. The second power assembly 4 is connected to the first roller 1 and is used to adjust the height of the first roller 1. There are many ways to implement the second power assembly 4. This embodiment adopts the following measures:

[0021] like Figure 1 , Figure 3 As shown, the second power assembly 4 includes a second motor 41, a lead screw 42, and a column 43. The first roller 1 has sliders 12 at both ends. The U-shaped bracket 5 has through grooves 51 on both sides. The lead screw 42 is rotatably disposed in one of the through grooves 51. One of the sliders 12 is threadedly connected to the lead screw 42. The second motor 41 is disposed at the top of the U-shaped bracket 5. The output shaft of the second motor 41 is used to drive the lead screw 42. The column 43 is fixedly disposed in the other through groove 51, and the other slider 12 is slidably engaged with the column 43.

[0022] CN220074894U discloses a label cutting device in which the distance between the cutters on the cutting roller can be adjusted according to the cutting requirements to cut labels of different sizes. Considering this, in this embodiment, the outer wall of the second roller 2 has four rows of cutting grooves 21 arranged along its axial direction. The spacing between any two rows of cutting grooves 21 is different. This design is intended to accommodate the adjusted position of the blades 11. In use, the first roller 1 is first moved upwards using the second power assembly 4, and then the second roller 2 is driven by the first power assembly 3, causing the row of cutting grooves 21 that meets the requirements to move to the top surface of the second roller 2.

[0023] Furthermore, to meet more needs, the second roller 2 is detachably rotatably mounted in the U-shaped bracket 5 so that the second roller 2 can be replaced and then a second roller 2 of other specifications can be installed.

[0024] Considering that blade 11 is exposed and poses a significant safety hazard, such as Figure 1 , Figure 3 As shown, the device also includes two baffles 6 symmetrically arranged on both sides of the first roller 1. All blades 11 are located between the two baffles 6. Support blocks 61 are provided at the top of both ends of the baffles 6. Two sliding grooves 52 are provided on both sides of the U-shaped bracket 5. The two sliding grooves 52 are located on both sides of the through groove 51. Vertical guide rods 53 are provided in the sliding grooves 52. Support blocks 61 are located in the corresponding sliding grooves 52. Support blocks 61 slide up and down in cooperation with the corresponding guide rods 53. Springs 54 are provided on the outer periphery of the guide rods 53. The top and bottom of the springs 54 are respectively connected to the U-shaped bracket 5 and the support blocks 61. A crossbar 13 is provided on the outer side of the slider 12. The crossbar 13 is located below the two support blocks 61.

[0025] exist Figure 3 In this state, the bottom surface of the baffle 6 is higher than the top surface of the second roller 2 to prevent the baffle 6 from obstructing the conveying of the label paper. When the crossbar 13 rises with the first roller 1 and contacts the two support blocks 61, the bottom surface of the baffle 6 is lower than the bottom edge of the blade 11. Then the crossbar 13 continues to rise with the first roller 1, and the two baffles 6 also rise under the action of the crossbar 13. This design has two purposes: first, to further improve safety, and second, to raise the baffle 6, which makes it easier to pass the label paper through before cutting.

[0026] The method of use is as follows: The second motor 41 drives the lead screw 42, causing the first roller 1 and the two sliders 12 to move upward, thereby causing the blade 11 to disengage from the cutting groove 21; when the crossbar 13 rises with the first roller 1 and contacts the two support blocks 61, the crossbar 13 continues to rise with the first roller 1, and the two baffles 6 also rise under the action of the crossbar 13; the label paper to be cut is passed between the first roller 1 and the second roller 2, and then the label paper is tightened and made to stick tightly to the top surface of the second roller 2; the second motor 41 drives the lead screw 42 in the opposite direction, causing the blade 11 to move down to the corresponding cutting groove 21, and the baffles 6 return to their original position under their own weight and the action of the spring 54, thus protecting the blade 11.

[0027] The above embodiments are only used to illustrate the technical concept and features of this utility model, and are not intended to be unique or to limit this utility model. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A cutting device, characterized in that, Includes U-shaped support (5), first roller (1), first power assembly (3), second roller (2), and second power assembly (4); The second roller (2) is rotatably mounted inside the U-shaped bracket (5), and the first power assembly (3) is mounted on the outer wall of the U-shaped bracket (5) for driving the second roller (2). The outer wall of the second roller (2) has multiple rows of cutting grooves (21) arranged along its axial direction. The spacing of the cutting grooves (21) array is different in any two rows of cutting grooves (21). The first roller (1) is horizontally positioned inside the U-shaped bracket (5) and above the second roller (2). The outer wall of the first roller (1) has multiple blades (11) arranged in an array. The position of the blades (11) corresponds to the position of one row of cutting grooves (21). The second power assembly (4) is located on the side wall of the U-shaped bracket (5) and is connected to the first roller (1) to adjust the height of the first roller (1).

2. The cutting device according to claim 1, characterized in that, The second roller (2) is detachably mounted in the U-shaped bracket (5).

3. The cutting device according to claim 1, characterized in that, The first power component (3) is set as the first motor.

4. The cutting device according to claim 1, characterized in that, The second power assembly (4) includes a second motor (41), a lead screw (42) and a column (43). The first roller (1) has sliders (12) at both ends. The U-shaped bracket (5) has through slots (51) on both sides. The lead screw (42) is rotatably located in one of the through slots (51). One of the sliders (12) is threadedly connected to the lead screw (42). The second motor (41) is located at the top of the U-shaped bracket (5), and its output shaft is used to drive the lead screw (42). The column (43) is fixedly located in another through slot (51), and the other slider (12) is slidably engaged with the column (43).

5. The cutting device according to claim 4, characterized in that, It also includes two baffles (6) symmetrically arranged on both sides of the first roller (1). The top of both ends of the baffles (6) are provided with support blocks (61). The two side walls of the U-shaped bracket (5) are provided with two sliding grooves (52). The two sliding grooves (52) are located on both sides of the through groove (51). The sliding grooves (52) are provided with vertical guide rods (53). The support blocks (61) are located in the corresponding sliding grooves (52) and are slidably engaged with the corresponding guide rods (53). The slider (12) is provided with a crossbar (13). When the crossbar (13) rises with the first roller (1) and contacts the two support blocks (61), the bottom surface of the baffle (6) is lower than the blade (11).

6. The cutting device according to claim 5, characterized in that, A spring (54) is provided on the outer periphery of the guide rod (53), and the top and bottom of the spring (54) are respectively connected to the U-shaped bracket (5) and the support block (61).

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