An adhesive label slitting device

Abstract

The utility model belongs to label slitting device field, concretely relates to a kind of self-adhesive label slitting device, including slitting box, the inner wall upper portion of slitting box is equipped with hexagonal shaft by bearing, the outside of hexagonal shaft is slidably connected with multiple evenly distributed ring cutter, the outside of ring cutter is equipped with adjusting frame by bearing, the upper end of slitting box is slidably connected with adjusting plate, the outside of slitting box is provided with down mechanism.The utility model moves horizontally by single screw one drive adjusting plate with inclined hole, utilizes inclined plane mechanical principle, can simultaneously convert into the radial linear motion of all adjusting frame and ring cutter with a rotary operation.This design has realized the one-time, same proportion, stepless adjustment of all cutter spacing, only needs to rotate hand arm to quickly complete slitting specification switching, completely avoids the tedious process that traditional mode needs to manually dismount, position cutter one by one, greatly shortens the downtime changeover time.

Description

Technical Field

[0001] This utility model relates to the technical field of label cutting devices, specifically a self-adhesive label cutting device. Background Technology

[0002] Self-adhesive labels are increasingly widely used as an important medium for modern product identification, logistics management, and information recording. During production, large-format materials need to be cut into labels or label rolls of specific widths; the precision and efficiency of this process directly affect product quality and cost.

[0003] Traditional slitting devices mostly use fixed cutters, whose positions cannot be adjusted once locked. When it is necessary to change the slitting specifications, the machine must be stopped, disassembled, and multiple cutters must be manually repositioned and tightened. This process is cumbersome, time-consuming, and labor-intensive, and highly dependent on the operator's experience. Adjustment accuracy is difficult to guarantee, which can easily lead to uneven slitting width and waste products. Frequent disassembly and assembly also accelerates the wear of the cutters and cutter shafts. In addition, the matching clamping mechanism is often inconvenient to adjust and cannot adapt to the tension requirements of materials of different thicknesses, affecting slitting stability.

[0004] To improve adjustment performance, adjustable slitting devices have emerged in the prior art, such as those using lead screws to drive the cutter movement. However, these solutions typically require individual adjustment of each cutter, resulting in low efficiency, limited operating space, and inconvenient adjustment when multiple cutters are densely arranged. Another solution uses servo motors to achieve numerical control adjustment, offering high precision and automation, but the system structure is complex, and manufacturing and maintenance costs are high, making it less economical for small and medium-sized enterprises. Therefore, improvements to existing technologies are necessary. Utility Model Content

[0005] The purpose of this invention is to provide a self-adhesive label cutting device that solves the problems of inconvenient adjustment of cutting width and inconvenient adjustment of tension according to material.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-adhesive label slitting device, comprising a slitting box, a hexagonal shaft mounted on the upper part of the inner wall of the slitting box via bearings, a plurality of evenly distributed ring cutting blades slidably connected to the outer side of the hexagonal shaft, an adjusting frame mounted on the outer side of the ring cutting blades via bearings, an adjusting plate slidably connected to the upper end of the slitting box, a pressing mechanism provided on the outer side of the slitting box, an internal threaded frame fixedly mounted on the upper end of the adjusting plate, a screw rod one fixedly mounted on the upper end of the slitting box, a fixing plate fixedly mounted on the lower middle part of the inner wall of the slitting box, an internal threaded tube mounted on the inner center of the fixing plate via bearings, a screw rod two connected to the inner threaded tube via threads, a roller frame fixedly mounted on the upper end of the screw rod two, two symmetrically distributed support rollers mounted on the inner side of the roller frame via bearings, and a conical tooth ring fixedly mounted on the lower outer side of the internal threaded tube.

[0007] Preferably, the rod at the upper end of the adjusting frame is slidably connected to the sliding hole above the slitting box, and a guide rod is fixedly installed on the upper part of the inner wall of the slitting box. The guide rod is slidably connected to the adjusting frame and can guide the movement of the adjusting frame.

[0008] Preferably, the adjusting plate has multiple symmetrically distributed oblique holes inside, the rod at the upper end of the adjusting frame is slidably connected to the oblique holes, the screw is threadedly connected to the internal threaded frame, and a hand crank is fixedly installed at one end of the screw, which can drive the screw to rotate.

[0009] Preferably, a drive motor is fixedly installed on the back of the slitting box, the output shaft of the drive motor is fixedly connected to the hexagonal shaft, and guide pins are fixedly installed at the four corners of the lower end of the roller frame. The guide pins are slidably connected to the fixed plate, and the guide pins can guide the movement of the roller frame.

[0010] Preferably, a bevel gear shaft is mounted on the lower end of the fixed plate via a bearing, and a handwheel is fixedly mounted on one end of the bevel gear shaft located outside the cutting box. The bevel gear ring meshes with the bevel gear shaft, and the handwheel can drive the bevel gear shaft to rotate.

[0011] Preferably, the pressing mechanism includes a long plate frame, and long plate frames are fixedly installed on the upper parts of both the left and right ends of the cutting box. Each long plate frame has a sliding rod pin slidably connected inside. The lower ends of multiple sliding rod pins inside each long plate frame are fixedly installed with a pressing frame. A pressing roller is installed inside the pressing frame through a bearing. A spring is provided on the outside of each sliding rod pin. The pressing roller can press down on the material.

[0012] Preferably, one end of the spring is fixedly connected to the lower pressure frame, and the other end of the spring is fixedly connected to the long plate frame. The spring can provide downward pressure to the lower pressure frame through its elastic force.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a single screw to drive the horizontal movement of an adjusting plate with an inclined hole. Utilizing the mechanical principle of an inclined plane, a single rotational operation can be synchronously converted into radial linear motion of all adjusting frames and ring cutters. This design achieves one-time, proportional, and stepless adjustment of the spacing between all cutters. Switching between cutting specifications can be quickly completed simply by rotating the hand crank, completely avoiding the tedious process of manually disassembling and positioning each cutter individually, greatly reducing downtime for changeovers. Furthermore, the structure is simple and reliable, with a guide rod ensuring movement guidance during adjustment, effectively preventing cutter skew and ensuring the consistency of width for each slit. It offers high adjustment accuracy and low manufacturing cost.

[0015] 2. This utility model enhances the adaptability of the equipment to different materials through the combined action of the pressing mechanism and the support height adjustment mechanism. The pressing mechanism provides elastic pressure through springs, enabling the pressing rollers to automatically adapt to changes in material thickness and maintain a stable and appropriate clamping force at all times. This ensures that the material is transported flat during the cutting process, preventing wrinkling and deviation. At the same time, by rotating the handwheel through the bevel gear pair, the internal threaded tube can be driven to rotate, which can precisely control the lifting and lowering of the screw and roller frame, thereby independently adjusting the height of the two sets of support rollers. This function allows the operator to optimize the tension and flatness of the material before it enters the cutting area according to its characteristics. Working in conjunction with the pressing mechanism, it ensures the stability of the slitting process and good compatibility with various materials. Attached Figure Description

[0016] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0017] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0018] Figure 3 For the present utility model Figure 1 Local structural cross-section Figure 1 ;

[0019] Figure 4 For the present utility model Figure 1 Local structural cross-section Figure 2 ;

[0020] Figure 5 For the present utility model Figure 3 A three-dimensional view of the roller frame;

[0021] Figure 6 For the present utility model Figure 1 A three-dimensional view of the pressing mechanism;

[0022] Figure 7 For the present utility model Figure 1 A 3D view of the adjustment plate;

[0023] Figure 8 For the present utility model Figure 4 A three-dimensional view of the adjustment frame.

[0024] In the diagram: 1. Slitting box; 2. Hexagonal shaft; 3. Ring cutter; 4. Adjusting frame; 5. Guide rod; 6. Adjusting plate; 7. Pressing mechanism; 8. Internal thread frame; 9. Screw one; 10. Hand crank arm; 11. Fixing plate; 12. Internal threaded tube; 13. Screw two; 14. Roller frame; 15. Support roller; 16. Guide pin; 17. Bevel gear ring; 18. Bevel gear shaft; 19. Handwheel; 20. Drive motor; 61. Slanted hole; 71. Long plate frame; 72. Sliding rod pin; 73. Pressing frame; 74. Pressing roller; 75. Spring. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-8 A self-adhesive label slitting device includes a slitting box 1. A hexagonal shaft 2 is mounted on the upper part of the inner wall of the slitting box 1 via bearings. Multiple evenly distributed ring cutters 3 are slidably connected to the outer side of the hexagonal shaft 2. An adjusting frame 4 is mounted on the outer side of the ring cutters 3 via bearings. An adjusting plate 6 is slidably connected to the upper end of the slitting box 1. A pressing mechanism 7 is provided on the outer side of the slitting box 1. An internal threaded frame 8 is fixedly mounted on the upper end of the adjusting plate 6. A screw 9 is fixedly mounted on the upper end of the slitting box 1. A fixing plate 11 is fixedly mounted on the lower middle part of the inner wall of the slitting box 1. An internal threaded tube 12 is mounted on the center of the fixing plate 11 via bearings. A screw 13 is threadedly connected to the inside of the internal threaded tube 12. A roller frame 14 is fixedly mounted on the upper end of the screw 13. Two left-right symmetrically distributed support rollers 15 are mounted on the inside of the roller frame 14 via bearings. A beveled ring 17 is fixedly mounted on the lower outer side of the internal threaded tube 12.

[0027] Please see Figure 1-8The upper rod of the adjusting frame 4 is slidably connected to the sliding hole above the slitting box 1. A guide rod 5 is fixedly installed on the upper part of the inner wall of the slitting box 1. The guide rod 5 is slidably connected to the adjusting frame 4 and can guide the movement of the adjusting frame 4. The adjusting plate 6 has multiple symmetrically distributed oblique holes 61 inside. The upper rod of the adjusting frame 4 is slidably connected to the oblique holes 61. The screw 9 is threadedly connected to the internal threaded frame 8. A hand crank arm 10 is fixedly installed at one end of the screw 9 and can drive the screw 9 to rotate. The back of the slitting box 1 A drive motor 20 is fixedly installed, and the output shaft of the drive motor 20 is fixedly connected to the hexagonal shaft 2. Guide pins 16 are fixedly installed at the four corners of the lower end of the roller frame 14. The guide pins 16 are slidably connected to the fixed plate 11. The guide pins 16 can guide the movement of the roller frame 14. A bevel gear shaft 18 is installed at the lower end of the fixed plate 11 through a bearing. A handwheel 19 is fixedly installed at one end of the bevel gear shaft 18 located outside the slitting box 1. The bevel gear ring 17 meshes with the bevel gear shaft 18. The handwheel 19 can drive the bevel gear shaft 18 to rotate.

[0028] Please see Figure 1-8 The pressing mechanism 7 includes a long plate frame 71. Long plate frames 71 are fixedly installed on the upper parts of both the left and right ends of the cutting box 1. Each long plate frame 71 has a sliding rod nail 72 slidably connected inside. The lower ends of the multiple sliding rod nails 72 inside each long plate frame 71 are fixedly installed with a pressing frame 73. A pressing roller 74 is installed inside the pressing frame 73 through a bearing. A spring 75 is provided on the outside of each sliding rod nail 72. The pressing roller 74 can press down on the material. One end of the spring 75 is fixedly connected to the pressing frame 73, and the other end of the spring 75 is fixedly connected to the long plate frame 71. The spring 75 can provide downward pressure to the pressing frame 73 through its elastic force.

[0029] The specific implementation process of this utility model is as follows: The roll of self-adhesive material to be slit is introduced from the rear of the device. First, it passes through a pair of support rollers 15 whose height has been adjusted by handwheel 19 to initially flatten the material. Then, the material enters the pressure zone formed by the lower pressure roller 74 and the lower end face of the ring cutter 3. The spring 75 in the lower pressure mechanism 7 forces the lower pressure frame 73 and the lower pressure roller 74 to press down, pressing the material tightly against the support rollers 15, forming a stable conveying tension and flatness, creating conditions for precise slitting.

[0030] When it is necessary to change the width of the slit label, the operator rotates the hand crank 10, which drives the screw 9 to rotate. Since the screw 9 is threadedly connected to the internal threaded bracket 8 fixed on the adjusting plate 6, and the adjusting plate 6 is restricted to sliding only along the upper end of the slit box 1, the rotation of the screw 9 is converted into the horizontal linear motion of the adjusting plate 6. The inclined hole 61 on the adjusting plate 6 moves accordingly and pushes the upper rod of each adjusting bracket 4 inserted therein. Under the constraint of the guide rod 5, all adjusting brackets 4 can only slide along the guide rod 5 in a direction perpendicular to the axis of the hexagonal axis 2. The inclined surface of the inclined hole 61 decomposes the horizontal movement of the adjusting plate 6, forcing each adjusting bracket 4 to drive the ring cutter 3 inside it to move synchronously and in the same direction along the hexagonal axis 2, thereby proportionally changing the distance between adjacent ring cutters 3 and realizing the setting of the slit width.

[0031] After adjustment, start the drive motor 20 to drive the hexagonal shaft 2 to rotate at high speed. The hexagonal shaft 2 drives all the ring cutters 3 on it to rotate synchronously through its hexagonal cross section. When the self-adhesive material that has been pressed and conveyed at a uniform speed passes under the high-speed rotating ring cutter 3, it is continuously cut into multiple label strips of a preset width. The cut label strips are then wound up by the collection mechanism at the front of the device or enter the next process.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-adhesive label slitting device, comprising a slitting box (1), characterized in that: A hexagonal shaft (2) is mounted on the upper part of the inner wall of the slitting box (1) via bearings. Multiple evenly distributed ring cutters (3) are slidably connected to the outer side of the hexagonal shaft (2). An adjusting bracket (4) is mounted on the outer side of the ring cutter (3) via bearings. An adjusting plate (6) is slidably connected to the upper end of the slitting box (1). A pressing mechanism (7) is provided on the outer side of the slitting box (1). An internal threaded bracket (8) is fixedly installed on the upper end of the adjusting plate (6). A screw rod (9) is fixedly installed on the upper end of the slitting box (1). A fixing plate (11) is fixedly installed on the lower part of the inner wall of the slitting box (1). An internal threaded tube (12) is installed in the center of the fixing plate (11) through a bearing. A screw (13) is connected to the inside of the internal threaded tube (12) through a thread. A roller frame (14) is fixedly installed at the upper end of the screw (13). Two support rollers (15) are symmetrically distributed on the left and right sides and installed in the inside of the roller frame (14) through a bearing. A beveled ring (17) is fixedly installed on the lower part of the outer side of the internal threaded tube (12).

2. The self-adhesive label cutting device according to claim 1, characterized in that: The rod at the upper end of the adjusting frame (4) is slidably connected to the sliding hole above the slitting box (1). A guide rod (5) is fixedly installed on the upper part of the inner wall of the slitting box (1), and the guide rod (5) is slidably connected to the adjusting frame (4).

3. The self-adhesive label cutting device according to claim 1, characterized in that: The adjusting plate (6) has multiple symmetrically distributed oblique holes (61) inside. The rod at the upper end of the adjusting frame (4) is slidably connected to the oblique holes (61). The screw (9) is threadedly connected to the internal thread frame (8). A hand crank (10) is fixedly installed at one end of the screw (9).

4. The self-adhesive label cutting device according to claim 1, characterized in that: A drive motor (20) is fixedly installed on the back of the slitting box (1). The output shaft of the drive motor (20) is fixedly connected to the hexagonal shaft (2). Guide pins (16) are fixedly installed at the four corners of the lower end of the roller frame (14). The guide pins (16) are slidably connected to the fixing plate (11).

5. The self-adhesive label cutting device according to claim 1, characterized in that: The lower end of the fixed plate (11) is fitted with a bevel gear shaft (18) via a bearing. A handwheel (19) is fixedly installed at one end of the bevel gear shaft (18) located outside the cutting box (1). The bevel gear ring (17) meshes with the bevel gear shaft (18).

6. The self-adhesive label cutting device according to claim 1, characterized in that: The pressing mechanism (7) includes a long plate frame (71). The upper parts of the left and right ends of the cutting box (1) are fixedly installed with long plate frames (71). Each long plate frame (71) is slidably connected with a sliding rod nail (72). The lower ends of the multiple sliding rod nails (72) that slide inside each long plate frame (71) are fixedly installed with a pressing frame (73). The pressing frame (73) is installed with a pressing roller (74) through a bearing. Each sliding rod nail (72) is provided with a spring (75) on its outer side.

7. The self-adhesive label cutting device according to claim 6, characterized in that: One end of the spring (75) is fixedly connected to the lower pressure frame (73), and the other end of the spring (75) is fixedly connected to the long plate frame (71).

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