Circular knife die-cutting machine

By adaptively adjusting the distance of the antistatic bar and uniformly diffusing ions, the problems of material adsorption and equipment failure caused by static electricity accumulation in the circular die-cutting machine are solved, achieving efficient static electricity elimination and stable equipment operation.

CN223904080UActive Publication Date: 2026-02-13ZHIXIANTUO MACHINERY TECHNOLOGY DONGGUAN CO LTD
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Patent Information

Application Number
CN202520621084.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-02-13
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

Existing rotary die-cutting machines suffer from material adsorption and equipment failure due to static electricity accumulation during the die-cutting process. Furthermore, the efficiency of the antistatic bar is closely related to the installation distance, and fixed installation or manual adjustment is inefficient.

Method used

The system employs a distance adaptive system that drives the antistatic bar. A height sensor detects the product position, and the drive unit moves the antistatic bar up and down. Combined with a limiting component, it prevents the bar from detaching, ensuring the optimal working distance. Ions are also evenly diffused through the air channel.

Benefits of technology

It effectively eliminates static electricity, prevents equipment failure, extends the life of the static eliminator, reduces maintenance costs, and improves the uniformity of static elimination effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a circular knife die-cutting machine which comprises a fixing frame and dies which are symmetrically arranged up and down, a first fixing plate is connected to the bottom of the right side of the fixing frame, first driving pieces are symmetrically arranged on the top of the first fixing plate front and back, a second fixing plate is connected between the tops of the output ends of the first driving pieces, and fixing bases are symmetrically arranged on the top of the second fixing plate front and back. Semicircular grooves are formed in the inner side of the top of the fixing base, a static eliminating rod is placed between the semicircular grooves, and an air outlet is formed in the bottom of the static eliminating rod. A limiting assembly is arranged on the outer side of the top of the fixing base and located above the semicircular groove. The height sensor is arranged to detect the position of a product, and the first driving piece drives the static electricity removing rod to move up and down according to a detection result, so that the static electricity removing rod keeps an optimal action distance with the product, the static electricity removing rod is always in an efficient working distance range, and static electricity is effectively removed.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the die cutting technical field, concretely relates to a circular knife die cutting machine. BACKGROUND

[0002] The circular knife die cutting machine mainly carries out continuous rotary cutting to products through a circular cutter, but in the die cutting process, static electricity is easily accumulated due to factors such as material friction, temperature and humidity changes, which can cause problems such as material adsorption and equipment failure, so the existing circular knife die cutting machine is usually equipped with an electrostatic bar for eliminating static electricity. The electrostatic bar generates a large number of positive and negative ions by ionizing air, and the positive and negative ions diffuse to the surface of the electrified object under the action of the electric field, neutralizing the static charge, thereby playing a role in eliminating static electricity.

[0003] However, in actual application, the electrostatic bar is usually fixedly installed or manually adjusted, but experimental data shows that the performance of a 1250-type electrostatic bar at a 25mm spacing is 6 times that of a 50mm spacing, so the elimination efficiency of the electrostatic bar is closely related to the installation distance. INVENTION CONTENTS

[0004] The utility model aims at providing a circular knife die cutting machine with a driving electrostatic bar to realize distance self-adaptation, so as to solve the problems in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a circular knife die cutting machine, comprising a fixed frame and a die cutting machine symmetrically arranged above and below, the right side bottom of the fixed frame is connected with a first fixed plate, the top of the first fixed plate is symmetrically provided with a first driving part, the output end top of the first driving part is connected with a second fixed plate, the top of the second fixed plate is symmetrically provided with a fixed seat, a semicircular groove is opened in the inner side of the top of the fixed seat, an electrostatic bar is placed between the semicircular grooves, and a gas outlet is opened in the bottom of the electrostatic bar.

[0006] Preferably, a limiting assembly is arranged on the outer side of the top of the fixed seat, and the limiting assembly is located above the semicircular groove.

[0007] Preferably, the limiting assembly comprises: a second driving part is installed on the outer side of the top of the fixed seat, the output end of the second driving part is connected with an adjusting rod, an oval groove is symmetrically opened in the front and back of the adjusting rod, a swing rod is symmetrically rotationally arranged on the inner side of the top of the fixed seat, and a limiting block is rotationally arranged on the top of the swing rod.

[0008] Preferably, an adjusting shaft is arranged on the lower part of the swing rod, and the adjusting shaft is located in the oval groove.

[0009] Preferably, the limiting block is in the shape of a semicircular ring.

[0010] Preferably, a height sensor is arranged in the fixed frame.

[0011] Preferably, the second fixed plate is provided with an air passage slot.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses a height sensor detects product position, and the first driving part drives the electrostatic eliminator bar to move up and down according to the detection result, makes it keep the best action distance with the product, ensures that the electrostatic eliminator bar is always in the high -efficient work distance range, effectively eliminates static electricity.

[0014] The limiting assembly in the utility model can effectively prevent the electrostatic eliminator bar from being separated from the semicircular groove due to inertial force when moving up and down on the second fixed plate driven by the first driving part, ensure the normal operation of the equipment, prolong the service life of the electrostatic eliminator bar and reduce the maintenance cost.

[0015] The air passage slot of the utility model helps the downward diffusion of positive and negative ions, makes the ions more evenly cover the product surface, further improves the electrostatic elimination effect, avoids the problem of local static residual caused by uneven ion diffusion. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Fig. 2 It is the partial three-dimensional structure schematic diagram of the utility model;

[0018] Fig. 3 It is the three-dimensional structure schematic diagram of the limiting assembly in the utility model.

[0019] Reference signs in the drawing: 1-fixed frame, 2-mold, 3-first fixed plate, 4-first driving part, 5-second fixed plate, 6-fixed seat, 7-semicircular groove, 8-electrostatic eliminator bar, 9-gas outlet, 10-limiting assembly, 101-second driving part, 102-adjusting rod, 103-elliptical groove, 104-rocker, 105-limiting block, 106-adjusting shaft, 11-height sensor, 12-air passage slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] AsFigs. 1-3 The utility model provides a circular knife die cutting machine, including fixed frame 1 and the die 2 of symmetrical settings up and down, the right side bottom of fixed frame 1 is connected with first fixed plate 3, and the top of first fixed plate 3 is symmetrically equipped with first drive 4, and the top between the output end of first drive 4 is connected with second fixed plate 5, and the top of second fixed plate 5 is symmetrically equipped with fixed seat 6, and the inside of fixed seat 6 top is opened with semicircular groove 7, and the bottom of electrostatic eliminator 8 is placed between semicircular groove 7, and the bottom of electrostatic eliminator 8 is opened with air release port 9;The top outside of fixed seat 6 is provided with limiting assembly 10, and limiting assembly 10 is located above semicircular groove 7;Limiting assembly 10 includes: the top outside of fixed seat 6 is installed with second drive 101, and the output end of second drive 101 is connected with adjusting lever 102, and the front and rear symmetry of adjusting lever 102 is opened with oval slot 103, and the inside of fixed seat 6 top is symmetrically rotated and is equipped with swing lever 104, and the top of swing lever 104 is rotated and is equipped with limiting block 105;The lower part of swing lever 104 is equipped with adjusting shaft 106, and adjusting shaft 106 is located in oval slot 103;Limiting block 105 is all semicircular ring shape;Fixed frame 1 is equipped with height sensor 11;Second fixed plate 5 is opened with airway groove 12.

[0023] The utility model discloses a height sensor 11 detects product position, and first drive 4 moves electrostatic eliminator 8 up and down according to the detection result, makes it and product keep the best action distance, ensures that electrostatic eliminator 8 is always in the high -efficient work distance range, effectively eliminates static electricity;The limiting assembly 10 in the utility model can effectively prevent electrostatic eliminator 8 from being separated from semicircular groove 7 when being driven by first drive 4 to move up and down on second fixed plate 5, ensure the normal operation of equipment, prolong the service life of electrostatic eliminator 8 and reduce its maintenance cost;The airway groove 12 of the utility model helps the downward diffusion of positive and negative ions, makes ions more evenly cover the product surface, further improves the static electricity removing effect, avoids the problem of local static electricity residue caused by uneven ion diffusion.

[0024] Example 2

[0025] As Figs. 1-3 The utility model discloses a circular knife die cutting machine, including fixed frame 1 and the die 2 of symmetrical settings up and down, and the product is drawn out between the die 2, and then the die 2 and the product are rotated simultaneously, and the die cutting of the product by the die 2 is completed. The bottom right side of the fixed frame 1 is provided with a first fixed plate 3 for bearing the electrostatic eliminator 8 and other components. The first fixed plate 3 is provided with a first drive 4 on both sides of the top. The output end of the first drive 4 is connected with a second fixed plate 5 between the top. Specifically, the operation of the first drive 4 drives the second fixed plate 5 to move up and down. Then, when the top of the second fixed plate 5 is provided with a fixed seat 6 symmetrically arranged in front and back, and a semicircular groove 7 is opened on the top of the fixed seat 6 for placing the electrostatic eliminator 8, the electrostatic eliminator 8 on the top can be driven to move up and down. The electrostatic eliminator 8 moves to the effective action distance of the product to play the role of removing static electricity.

[0026] In practical application, in addition to the air outlet 9 of the static bar 8 is located at the bottom, a large number of positive and negative ions are generated by ionizing air, and the positive and negative ions diffuse to the product surface under the action of the electric field, neutralize the static charge, and finally achieve the effect of eliminating static electricity; meanwhile, the air passage groove 12 is provided at the top of the second fixed plate 5 to realize the downward diffusion of the positive and negative ions.

[0027] Further, the height sensor 11 is arranged at the horizontal position between the molds 2 on the inner wall of the fixed frame 1. It is known that the pulling out of the product will be towards various directions with different heights. In order to ensure that the effective application distance between the static bar 8 and the product is moderate, the product can be detected by the height sensor 11, and then the first driving member 4 and the components thereon are driven to move up and down according to the actual detection distance to keep the effective application distance between the static bar 8 and the product.

[0028] Embodiment 3

[0029] Further, in order to avoid that the first driving member 4 drives the static bar 8 on it to move up and down and accidentally moves out of the semicircular groove 7, the limiting assembly 10 is arranged at the top of the fixed seat 6 and above the semicircular groove 7 to limit or realize the opening position of the top of the semicircular groove 7. The limiting assembly 10 specifically includes:

[0030] The second driving member 101 is mounted on the outside of the top of the fixed seat 6, and the output end of the second driving member 101 is connected with the adjusting rod 102. The second driving member 101 is used to drive the adjusting rod 102 to move up and down, and the oval groove 103 is symmetrically opened in front of and behind the adjusting rod 102. The swing rod 104 is symmetrically arranged and rotated at the inside of the top of the fixed seat 6, and the limiting block 105 is rotatably arranged at the top of the swing rod 104. Here, the limiting block 105 is semicircular and above the semicircular groove 7. In practical application, the rotation of the swing rod 104 drives the limiting block 105 to expand, which is convenient for placing the static bar 8 when it is opened, and the limiting block 105 is retracted to limit the static bar 8. When the first driving member 4 drives the second fixed plate 5 to move up and down, the static bar 8 is not accidentally separated from the semicircular groove 7 and falls and is damaged by the upward inertial force.

[0031] Correspondingly, the adjusting shaft 106 is arranged below the swing rod 104 and is located in the oval groove 103. In the initial state, the adjusting shaft 106 is located at the lowest point of the oval groove 103, drives the swing rod 104 and the limiting block 105 to limit the static bar 8. When the static bar 8 needs to be disassembled, the second driving member 101 drives the adjusting rod 102 to move downward, and then drives the adjusting shaft 106 to move to the highest point of the oval groove 103. At this time, the lower part of the swing rod 104 moves inward, drives the upper part to move outward and open, and drives the limiting block 105 to move outward, so that the static bar 8 is not limited, and is taken out.

[0032] It should be noted that the relational terms herein, such as first and second, and the like, are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0033] The above description is merely intended to illustrate the technical solutions of the present application, but not to limit the present application. Other modifications or equivalent replacements to the technical solutions of the present application made by those of ordinary skill in the art should be encompassed in the scope of the claims of the present application.

Claims

1. A rotary die cutting machine comprising a fixed frame and a die symmetrically arranged above and below, characterized in that, The right bottom of the fixing frame is connected with a first fixed plate, the top of the first fixed plate is symmetrically provided with a first driving element, the output end of the first driving element is connected with a second fixed plate, the top of the second fixed plate is symmetrically provided with a fixed seat, the inner side of the top of the fixed seat is provided with a semicircular groove, the semicircular groove is placed with a static electricity removing rod, and the bottom of the static electricity removing rod is provided with a gas discharge port.

2. A circular knife die cutter according to claim 1, wherein, The outer side of the top of the fixed seat is provided with a limiting assembly, and the limiting assembly is located above the semicircular groove.

3. A circular knife die cutter according to claim 2, wherein, The limiting assembly comprises that a second driving element is installed on the outer side of the top of the fixed seat, the output end of the second driving element is connected with an adjusting rod, the adjusting rod is symmetrically provided with an elliptical groove, the inner side of the top of the fixed seat is symmetrically provided with a swing rod, and the top of the swing rod is rotatably provided with a limiting block.

4. A circular knife die cutter according to claim 3, wherein, The lower part of the swing rod is provided with an adjusting shaft, and the adjusting shaft is located in the elliptical groove.

5. A circular knife die cutter as claimed in claim 3, wherein, The limiting block is a semicircular ring.

6. A circular knife die cutter as defined in claim 1, wherein, The fixing frame is internally provided with a height sensor.

7. A circular knife die cutter as defined in claim 1, wherein, The second fixed plate is provided with an airway groove.