A cutter device for a heat shrink film labelling machine

By introducing components such as hydraulic telescopic rods and negative pressure fans into the cutting device, automatic grinding and chip removal of the cutting blades are achieved, solving the problem of low efficiency caused by dulling and chip accumulation in the cutting device and improving production efficiency.

CN224295926UActive Publication Date: 2026-05-29ZHEJIANG RUIHE NEW MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG RUIHE NEW MATERIAL CO LTD
Filing Date
2025-06-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing cutting devices tend to have dull blades after prolonged use, with burrs and wires appearing on the cutting edge. Furthermore, the accumulation of debris leads to frequent machine shutdowns for cleaning, wasting time.

Method used

A cutting device is designed, comprising a hydraulic telescopic rod, a negative pressure fan, a rectangular slide rail, a moving block, a servo motor, a threaded slide rod, a threaded through hole, a rectangular slide groove, a connecting rod, a connecting block, a telescopic tube, a compression spring, a telescopic push rod, and a special-shaped grinding block. Through the synergistic action of these components, the cutting blade body is ground and debris is removed.

Benefits of technology

It effectively maintains the sharpness of the cutting blade, reduces cutting problems caused by dulling, removes debris in a timely manner, avoids frequent downtime, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to heat shrinkage film label production equipment technical field discloses a cutting device for heat shrinkage film label machine, and both sides positions of cutting knife rest top are all fixedly connected with hydraulic telescopic link, and cutting knife rest top and located fixed connection hydraulic telescopic link middle part position are equipped with negative pressure fan, both sides positions of cutting knife rest surface are all fixedly connected with rectangular slide rail, and the surface position of rectangular slide rail is all movably connected with moving block, the utility model discloses be equipped with moving block, connecting rod, connecting block, telescopic pipe, extrusion spring, telescopic push rod, heterotypic polishing block, be favorable to when dulling, kerf burr, wire drawing etc.
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Description

Technical Field

[0001] This utility model relates to the technical field of heat shrink film label production equipment, and more specifically to a cutting device for a heat shrink film label machine. Background Technology

[0002] A heat shrink film labeling machine is an automated packaging equipment specifically designed to apply heat shrink film labels to the outer surface of containers (such as bottles, cans, boxes, etc.) and shrink the labels by heating them to fit tightly to the container's contours, creating a high-gloss, waterproof packaging effect. The cutting device is the core component of the heat shrink film labeling machine, mainly used to precisely cut the film, label, or packaging material to meet the product size requirements, facilitating subsequent labeling, affixing, or shrinking processes.

[0003] However, in actual use, the blades (especially metal blades) of existing cutting devices tend to become dull after long-term cutting of films, leading to problems such as burrs and stringing. In addition, after long-term cutting of labels, film debris tends to accumulate around the blades, requiring frequent shutdowns for cleaning, which wastes a lot of time. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cutting device for a heat shrink film label machine to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a cutting device for a heat shrink film label machine, comprising a cutting blade holder, characterized in that: hydraulic telescopic rods are fixedly connected to both sides of the top of the cutting blade holder; a negative pressure fan is provided at the top of the cutting blade holder and at the middle of the fixedly connected hydraulic telescopic rods; rectangular slide rails are fixedly connected to both sides of the surface of the cutting blade holder; moving blocks are movably connected to the surface of the rectangular slide rails; a mounting plate is fixedly connected to one side of the surface of the cutting blade holder; a servo motor is fixedly connected to the side of the mounting plate away from the cutting blade holder; the servo motor is located inside the mounting plate. The device is equipped with a threaded slide rod, which is movably sleeved inside the moving block. The cutting blade body is fixedly connected to the bottom of the cutting blade holder. This utility model, by providing a moving block, connecting rod, connecting block, telescopic tube, compression spring, telescopic push rod, and special-shaped grinding block, is beneficial in that when the cutting blade body of the cutting device becomes dull and has problems such as burrs and wire drawing after long-term cutting, the moving block, connecting rod, connecting block, telescopic tube, compression spring, telescopic push rod, and special-shaped grinding block move on the surface of the cutting blade holder to grind the cutting blade body, thereby increasing the sharpness of the cutting blade body and preventing the cutting blade body from becoming dull.

[0006] Furthermore, the cutting blade holder has a debris collection cavity inside, a rectangular mounting hole at the location where it connects to the negative pressure fan, and suction slots at the bottom of the cutting blade holder on both sides where it is fixedly connected to the cutting blade body.

[0007] Furthermore, the movable block has a threaded through hole at the position of the movable sleeve threaded slide rod, and a rectangular slide groove at the position of the movable block of the movable sleeve rectangular slide rail. A connecting rod is fixedly connected to the bottom of the movable block.

[0008] Furthermore, a connecting block is fixedly connected to the bottom of the connecting rod, and a telescopic tube is fixedly connected to the side of the connecting block near the cutting blade holder. A compression spring is fixedly connected inside the telescopic tube.

[0009] Furthermore, a telescopic push rod is movably sleeved inside the telescopic tube on the side away from the connecting block, and a shaped grinding block is fixedly connected to the end of the telescopic push rod away from the telescopic tube.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] 1. This utility model, by incorporating a moving block, connecting rod, telescopic tube, compression spring, telescopic push rod, and irregular grinding block, facilitates the sharpening of the cutting blade body when it becomes dull or develops burrs or stringing after prolonged cutting. The moving block, connecting rod, telescopic tube, compression spring, telescopic push rod, and irregular grinding block move across the surface of the cutting blade holder, thereby polishing the cutting blade body, increasing its sharpness, and preventing dulling.

[0012] 2. This utility model, by providing a negative pressure fan, a debris collection cavity, and a rectangular mounting hole, facilitates the removal of air from the debris collection cavity by the negative pressure fan when debris adheres to the surface of the cutting blade body due to prolonged cutting. This creates a negative pressure in the debris collection cavity, which then adsorbs the attached debris through the rectangular mounting hole. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the movable block structure of this utility model.

[0016] Figure 4 This is a cross-sectional schematic diagram of the cutting blade holder structure of this utility model.

[0017] The attached figures are labeled as follows: 1. Cutting blade holder; 101. Debris collection cavity; 102. Rectangular mounting hole; 103. Suction slot; 2. Hydraulic telescopic rod; 3. Cutting blade body; 4. Negative pressure fan; 5. Rectangular slide rail; 6. Threaded slide rod; 7. Moving block; 701. Threaded through hole; 702. Rectangular slide groove; 8. Servo motor; 9. Mounting strip; 10. Connecting rod; 11. Connecting block; 12. Telescopic tube; 13. Compression spring; 14. Telescopic push rod; 15. Irregular grinding block. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The cutting device for a heat shrink film label machine involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Reference Figure 1 - Figure 4 As shown, this utility model provides a cutting device for a heat shrink film label machine, including a cutting blade holder 1. The device is characterized by: hydraulic telescopic rods 2 fixedly connected to both sides of the top of the cutting blade holder 1; a negative pressure fan 4 located at the top of the cutting blade holder 1 and in the middle of the fixedly connected hydraulic telescopic rods 2; rectangular slide rails 5 fixedly connected to both sides of the surface of the cutting blade holder 1; movable blocks 7 movably connected to the surface of the rectangular slide rails 5; a mounting plate 9 fixedly connected to one side of the surface of the cutting blade holder 1; a servo motor 8 fixedly connected to the side of the mounting plate 9 away from the cutting blade holder 1; and a threaded slide rod 6 connected to the servo motor 8 inside the mounting plate 9. The moving block 7 is located inside the moving block 7. The cutting blade body 3 is fixedly connected to the bottom of the cutting blade holder 1. This utility model, by providing the moving block 7, connecting rod 10, connecting block 11, telescopic tube 12, compression spring 13, telescopic push rod 14, and special-shaped grinding block 15, is beneficial to the cutting blade body 3 when it becomes dull, or has problems such as burrs and wire drawing after long-term cutting. The moving block 7, connecting rod 10, connecting block 11, telescopic tube 12, compression spring 13, telescopic push rod 14, and special-shaped grinding block 15 move on the surface of the cutting blade holder to grind the cutting blade body 3, thereby increasing the sharpness of the cutting blade body 3 and preventing the cutting blade body 3 from becoming dull.

[0020] The cutting blade holder 1 has a debris collection cavity 101 inside, a rectangular mounting hole 102 at the position where it is connected to the negative pressure fan 4, and suction slots 103 at the bottom of the cutting blade holder 1 and on both sides where it is fixedly connected to the cutting blade body 3.

[0021] The movable block 7 has a threaded through hole 701 at the position of the movable sleeve threaded slide rod 6, and a rectangular slide groove 702 at the position of the movable sleeve rectangular slide rail 5. A connecting rod 10 is fixedly connected to the bottom of the movable block 7.

[0022] Among them, a connecting block 11 is fixedly connected to the bottom of the connecting rod 10, a telescopic tube 12 is fixedly connected to the side of the connecting block 11 near the cutting blade holder 1, and a compression spring 13 is fixedly connected inside the telescopic tube 12.

[0023] The telescopic push rod 14 is movably sleeved inside the telescopic tube 12 on the side away from the connecting block 11, and a special-shaped grinding block 15 is fixedly connected to the end of the telescopic push rod 14 away from the telescopic tube 12.

[0024] The working principle of this utility model is as follows: First, when the cutting device becomes dull after prolonged cutting, the servo motor 8 on one side of the mounting plate 9 is activated. This causes the servo motor 8 to drive the threaded slide rod 6 to rotate inside the threaded through hole 701. Then, the rotation of the threaded slide rod 6 causes the moving block 7 to slide under the constraint of the rectangular slide rail 5. At this time, the moving block 7 drives the connecting rod 10 and the connecting block 11 to move. Then, driven by the connecting block 11, the telescopic tube 12 drives the telescopic push rod 14 and the irregular grinding block 15 to approach the cutting blade body 3. Then, the irregular grinding block 15 presses against the surface of the cutting blade body 3, pushing the telescopic push rod 14 to press against the compression spring 13 inside the telescopic tube 12, so that the irregular grinding block 15 cuts... The blade body 3 is clamped on both sides of its surface. Then, under the continuous drive of the connecting block 11, the compression spring 13 pushes the telescopic push rod 14 to bring the irregular grinding block 15 into contact with the blade body 3 for grinding, thereby increasing the sharpness of the blade body 3. When a lot of debris appears on the surface of the blade body 3 due to cutting, the negative pressure fan 4 is turned on to expel the air inside the debris collection cavity 101. Then, the debris collection cavity 101 adsorbs the debris on the surface of the blade body 3 through the suction slot 103. When the debris on the surface of the blade body 3 is firmly adsorbed, the servo motor 8 can be turned on to push the irregular grinding block 15 to push the firmly adhered debris on the surface of the blade body 3, thereby increasing the cleaning power of the debris.

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cutting device for a heat shrink film label machine, comprising a cutting blade holder (1), characterized in that: Hydraulic telescopic rods (2) are fixedly connected to both sides of the top of the cutting blade holder (1). A negative pressure fan (4) is provided at the top of the cutting blade holder (1) and in the middle of the fixed hydraulic telescopic rods (2). Rectangular slide rails (5) are fixedly connected to both sides of the surface of the cutting blade holder (1). Moving blocks (7) are movably connected to the surface of the rectangular slide rails (5). A mounting plate (9) is fixedly connected to one side of the surface of the cutting blade holder (1). A servo motor (8) is fixedly connected to the side of the mounting plate (9) away from the cutting blade holder (1). A threaded slide rod (6) is driven to the inside of the mounting plate (9). The threaded slide rod (6) is movably sleeved inside the moving block (7). A cutting blade body (3) is fixedly connected to the bottom of the cutting blade holder (1).

2. The cutting device for a heat shrink film label machine according to claim 1, characterized in that: The cutting blade holder (1) has a debris collection cavity (101) inside. The cutting blade holder (1) has a rectangular mounting hole (102) at the position where it is connected to the negative pressure fan (4). The cutting blade holder (1) has suction slots (103) at the bottom and on both sides where it is fixedly connected to the cutting blade body (3).

3. The cutting device for a heat shrink film label machine according to claim 1, characterized in that: The movable block (7) is provided with a threaded through hole (701) at the position of the movable sleeve threaded slide rod (6), and the movable block (7) is provided with a rectangular slide groove (702) at the position of the movable sleeve rectangular slide rail (5). A connecting rod (10) is fixedly connected to the bottom of the movable block (7).

4. A cutting device for a heat shrink film label machine according to claim 3, characterized in that: A connecting block (11) is fixedly connected to the bottom of the connecting rod (10), and a telescopic tube (12) is fixedly connected to the side of the connecting block (11) near the cutting blade holder (1). A compression spring (13) is fixedly connected inside the telescopic tube (12).

5. A cutting device for a heat shrink film label machine according to claim 4, characterized in that: A telescopic push rod (14) is movably sleeved inside the telescopic tube (12) on the side away from the connecting block (11), and a special-shaped grinding block (15) is fixedly connected to the end of the telescopic push rod (14) away from the telescopic tube (12).