High-hardness longitudinal slitting machine spacer sleeve

By using a high-hardness, high-wear-resistant material for the spacer sleeve and an internally injected coolant heat dissipation structure, the wear and temperature rise problems of the slitting machine spacer sleeve are solved, thereby improving the service life and processing accuracy of the equipment.

CN224673883UActive Publication Date: 2026-08-25NANJING DINGJIU MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202522555148.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-02
Publication Date
2026-08-25
Estimated Expiration
2035-12-02

AI Technical Summary

Technical Problem

The spacers of existing slitting machines suffer severe magnetic wear when adsorbing long iron filings, and the temperature rises due to prolonged operation of the cutter head, affecting its service life.

Method used

The outer and inner spacers are made of high-hardness and high-wear-resistant materials, combined with ball bearings and connecting parts. The spacers are filled with coolant and the heat is dissipated and cooled through support rods and contact parts, reducing wear and friction.

Benefits of technology

The increased hardness and heat dissipation capacity of the spacer have extended its service life, reduced wear and temperature rise issues, and enhanced the stability and machining accuracy of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224673883U_ABST
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Abstract

The utility model relates to longitudinal shear slitting machine technical field, concretely is a kind of high hardness longitudinal shear slitting machine spacer, including spacer mechanism, ball bearing and contact piece, the spacer mechanism includes spacer and connecting piece, the inside installation connecting piece of spacer, the spacer mechanism can heat dissipation to slitting machine cutting position, the both ends of the spacer mechanism are equipped with ball bearing, and the ball bearing is equipped with contact piece in, the hardness high material casting outer spacer and inner spacer of being equipped with can improve hardness and reduce wear, simultaneously through the connection of the connecting piece of inside installation, not only reduce the weight of whole, and pass through the support force that the connecting piece of dispersion can improve, to improve the service life of device further, the heat conduction of the cutting disc of contact can be cooled after pouring coolant in spacer, prolong the service life of cutting disc.
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Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, specifically a high-hardness slitting machine spacer. Background Technology

[0002] As a core piece of equipment in the field of metal coil processing, slitting machines are widely used in industries such as steel, non-ferrous metals, and stainless steel. Their main function is to accurately cut wide metal coils into several narrow-width coils according to production needs, providing raw materials that meet dimensional requirements for subsequent deep processing processes such as stamping, bending, and welding. In the working system of a slitting machine, the cutter shaft assembly is a key component that determines the slitting accuracy and product quality, while the spacer, as an important part of the cutter shaft assembly, directly affects the slitting stability, processing accuracy, and service life of the equipment. For example, CN210172651U discloses a slitting device for steel coil processing, including a slitting platform. The slitting platform is equipped with an n-shaped fixing frame and a drive motor. An upper rotating shaft and a lower rotating shaft are mounted between the n-shaped fixing frames via bearings. Both the upper and lower rotating shafts are connected to the drive motor via transmission belts. Both the upper and lower rotating shafts are hollow shafts with cylindrical magnetic rods inside their central cavities. Both ends of the upper and lower rotating shafts are threaded with caps. Several isolation rings and slitting blades are spaced on the upper and lower rotating shafts via splines. Several arc-shaped grooves are arranged on the isolation rings. A tightening ring block is provided between the outer isolation ring and the bearing on both the upper and lower rotating shafts. In this invention, the upper and lower rotating shafts are hollow structures with cylindrical magnetic rods inside, which concentrate and adsorb iron filings during the slitting process within the arc-shaped grooves of the isolation rings, avoiding the adverse effects caused by iron filings flying everywhere. However, when the device attracts longer iron filings, the magnetic attraction distance between the iron filings is inevitably extended due to the magnetic field between them, which still causes wear between the spacer and the rotating shaft. Furthermore, after continuous processing of the metal coil, the cutter head runs for a long time to squeeze the assembly, resulting in increased friction and temperature, which affects the service life of the spacer. Therefore, it is urgent to design a high-hardness slitting machine spacer to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a high-hardness slitting machine spacer to solve the problems mentioned in the background art, such as the inevitable magnetic attraction between the iron chips when adsorbing long iron chips, which still causes wear between the spacer and the rotating shaft even after extending the magnetic attraction distance. Furthermore, the continuous operation of the cutter head to squeeze the assembly after continuous processing of the metal coil leads to increased friction and temperature, affecting the service life of the spacer.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-hardness slitting machine spacer, comprising a spacer mechanism, ball bearings, and contact elements. The spacer mechanism includes a spacer assembly and a connecting element. The connecting element is installed inside the spacer assembly. The spacer mechanism can dissipate heat at the cutting position of the slitting machine. Ball bearings are installed at both ends of the spacer mechanism, and contact elements are installed inside the two sets of ball bearings.

[0005] Preferably, the spacer kit includes an outer spacer and an inner spacer, the outer spacer and the inner spacer having the same size and thickness, and the outer spacer and the inner spacer being connected by a connector.

[0006] Preferably, both the outer and inner spacers are made of high-hardness, high-wear-resistant material. Ball bearings are fixed at both ends of the outer wall of the outer spacer, and coolant is filled into the hollow spaces of the outer and inner spacers.

[0007] Preferably, the connector includes two sets of sealing rings and multiple sets of support rods. The two sets of sealing rings are respectively sealed and installed at the connection points of the outer and inner spacers. The centers of the two sets of sealing rings are fixed around the connector by multiple sets of support rods.

[0008] Preferably, the material of the multiple sets of support rods is the same as that of the outer and inner spacers, and the upper and lower ends of the multiple sets of support rods are respectively attached to the inner walls of the outer and inner spacers.

[0009] Preferably, a single set of support rods includes a connecting rod, a contact block, and a triangular block. Both ends of the connecting rod are fixed with contact blocks. The sides of both sets of contact blocks are fixed through and flush with the outer wall of the sealing ring. A through groove is opened in the center of the connecting rod, and multiple sets of triangular blocks are installed in the through groove.

[0010] Preferably, the contact element includes a fixed ring block and a contact ring plate. The contact ring plate is fixed on the outer wall of the fixed ring block, and the inner wall of the fixed ring block is installed in a ball bearing for rotation. The inner side of the contact ring plate abuts against the cutting edge of the slitting machine after installation.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This high-hardness slitting machine spacer, with its outer and inner spacers made of high-hardness cast material, can improve hardness and reduce wear. At the same time, the internally installed connectors not only reduce the overall weight, but also improve the support force through the distributed connectors, thereby increasing the service life of the device. By filling the spacer with coolant, the contact cutter head can be cooled through heat conduction, extending the service life of the cutter head.

[0012] This high-hardness slitting machine spacer features a through-groove in the support rod and multiple sets of triangular blocks installed inside. This design reduces weight while facilitating the flow of internal coolant and improving heat dissipation. The provided contact parts protect the spacer mechanism and reduce wear. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the present utility model; Figure 2 This is a frontal disassembled view of the present invention; Figure 3 This is a side view of the spacer mechanism of this utility model; Figure 4 This is a schematic diagram showing the disassembled spacer mechanism of this utility model; Figure 5 This is an enlarged schematic diagram of the support rod structure of this utility model.

[0014] In the diagram: 1. Spacer mechanism; 11. Spacer assembly; 111. Outer spacer; 112. Inner spacer; 12. Connector; 121. Sealing ring; 122. Support rod; 1221. Connecting rod; 1222. Through groove; 1223. Contact block; 1224. Triangular block; 2. Ball bearing; 3. Contact element; 31. Fixing ring block; 32. Contact ring plate. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-5 One embodiment provided by this utility model: A high-hardness slitting machine spacer includes a spacer mechanism 1, ball bearings 2, and contact elements 3. The spacer mechanism 1 includes a spacer assembly 11 and a connector 12. The connector 12 is installed inside the spacer assembly 11. The spacer mechanism 1 can dissipate heat at the cutting position of the slitting machine. Ball bearings 2 are installed at both ends of the spacer mechanism 1, and contact elements 3 are installed inside the two sets of ball bearings 2.

[0017] Furthermore, the partition 11 includes an outer partition 111 and an inner partition 112. The outer partition 111 and the inner partition 112 have the same size and thickness. The outer partition 111 and the inner partition 112 are connected by a connector 12. This design helps to reduce weight, save costs, and improve the applicability of the device.

[0018] Furthermore, both the outer partition 111 and the inner partition 112 are made of high-hardness and high-wear-resistant material. Ball bearings 2 are fixed at both ends of the outer wall of the outer partition 111. Coolant is poured into the hollow positions of the outer partition 111 and the inner partition 112. This design improves the hardness of the partition while increasing the cooling capacity and extending the service life of the device.

[0019] As a further improvement of this utility model, the connector 12 includes two sets of sealing rings 121 and multiple sets of support rods 122. The two sets of sealing rings 121 are respectively sealed and installed at the connection points of the outer spacer 111 and the inner spacer 112. The centers of the two sets of sealing rings 121 are fixed around them by multiple sets of support rods 122. The material of the multiple sets of support rods 122 is the same as that of the outer spacer 111 and the inner spacer 112. The upper and lower ends of the multiple sets of support rods 122 are respectively attached to the outer spacer 111 and the inner spacer 112. The inner wall of sleeve 112 has a single set of support rods 122, which includes a connecting rod 1221, a contact block 1223, and a triangular block 1224. Both ends of the connecting rod 1221 are fixed with contact blocks 1223. The sides of the two sets of contact blocks 1223 are fixed through and flush with the outer wall of the sealing ring 121. A through groove 1222 is opened in the center of the connecting rod 1221. Multiple sets of triangular blocks 1224 are installed in the through groove 1222. The above design facilitates the cooling treatment of the coolant and extends its service life.

[0020] Furthermore, the contact element 3 includes a fixed ring block 31 and a contact ring plate 32. The outer wall of the fixed ring block 31 is fixed with the contact ring plate 32. The inner wall of the fixed ring block 31 is installed in the ball bearing 2 for rotation. The inner side of the contact ring plate 32 is installed and abuts against the side of the cutting blade in the slitting machine. Through the above design, it is not only convenient to place iron filings into the spacer mechanism and improve the protection effect, but also to reduce friction.

[0021] Working principle: In use, the user first installs the inner side of the fixing ring block 31 inside the roller bearing 2 installed on both sides of the top of the outer spacer 111. At the same time, the contact ring plates 32 fixed by the two sets of fixing ring blocks 31 face outward. Then, the spacer mechanism is installed between the cutter discs. Both ends of its connecting piece 12 and the contact ring plate 32 are in contact with the side of the cutter disc. When the cutter disc is running continuously, the high temperature generated when the outer spacer 111 and inner spacer 112 in the spacer mechanism are squeezed can be conducted to the connecting rod 1221 through the contact block 1223. Then, it is cooled by the internal coolant. At the same time, the contact ring plate 32 is attached to the cutter disc and rotates with the cutter disc. By rotating with the cutter disc, the friction is reduced and the service life is improved. The above is the complete working principle of this utility model.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A spacer for a high-hardness slitting machine, comprising a spacer mechanism (1), a ball bearing (2), and a contact element (3), characterized in that: The spacer mechanism (1) includes a spacer assembly (11) and a connector (12). The connector (12) is installed inside the spacer assembly (11). The spacer mechanism (1) can dissipate heat at the cutting position of the slitting machine. Ball bearings (2) are installed at both ends of the spacer mechanism (1). Contact elements (3) are installed inside the two sets of ball bearings (2).

2. The spacer sleeve for a high-hardness slitting machine according to claim 1, characterized in that: The spacer assembly (11) includes an outer spacer (111) and an inner spacer (112), the outer spacer (111) and the inner spacer (112) having the same size and thickness, and the outer spacer (111) and the inner spacer (112) being connected by a connector (12).

3. The high-hardness slitting machine spacer according to claim 2, characterized in that: The outer partition (111) and the inner partition (112) are both made of high hardness and high wear resistance material. Ball bearings (2) are fixed at both ends of the outer wall of the outer partition (111). Coolant is poured into the hollow positions of the outer partition (111) and the inner partition (112).

4. The spacer sleeve for a high-hardness slitting machine according to claim 1, characterized in that: The connector (12) includes two sets of sealing rings (121) and multiple sets of support rods (122). The two sets of sealing rings (121) are respectively sealed and installed at the connection points of the outer spacer (111) and the inner spacer (112). The center of the two sets of sealing rings (121) is fixed around the center by multiple sets of support rods (122).

5. A high-hardness slitting machine spacer according to claim 4, characterized in that: The material of the multiple sets of support rods (122) is the same as that of the outer spacer (111) and the inner spacer (112), and the upper and lower ends of the multiple sets of support rods (122) are respectively attached to the inner walls of the outer spacer (111) and the inner spacer (112).

6. The spacer sleeve for a high-hardness slitting machine according to claim 5, characterized in that: Each set of support rods (122) includes a connecting rod (1221), a contact block (1223), and a triangular block (1224). Both ends of the connecting rod (1221) are fixed with contact blocks (1223). The sides of both sets of contact blocks (1223) are fixed through the outer wall of the sealing ring (121) and kept flush. A through groove (1222) is opened in the center of the connecting rod (1221), and multiple sets of triangular blocks (1224) are installed in the through groove (1222).

7. A high-hardness slitting machine spacer according to claim 1, characterized in that: The contact element (3) includes a fixed ring block (31) and a contact ring plate (32). The outer wall of the fixed ring block (31) is fixed with the contact ring plate (32). The inner wall of the fixed ring block (31) is installed in the ball bearing (2) for rotation. The inner side of the contact ring plate (32) is installed and abuts against the cutting edge of the slitting machine.

Citation Information

Patent Citations

  • Longitudinal shearing and slitting device for steel coil strip machining

    CN210172651U