High-wear-resistance PU coating roller

Abstract

The utility model discloses a PU coating roller with high wear resistance, which relates to the technical field of coating rollers and comprises a metal core component, a roller component is sleeved on the outer side of the metal core component, the metal core component comprises a central shaft, a connecting part is arranged on the outer side of the middle of the central shaft, a clamping groove is arranged on the surface of the connecting part, and the roller component is sleeved on the central shaft. A limiting block is fixedly installed at one end of the connecting part, a fixing hole is formed in the other end of the connecting part, a fixing ring is arranged on the outer side of the end, provided with the fixing hole, of the center shaft in a sleeving mode, the rolling wheel assembly comprises a connecting cylinder, the connecting cylinder is arranged on the outer side of the connecting part in a sleeving mode, and a clamping block is arranged in the connecting cylinder and connected with the clamping groove in a clamped mode. One end of the connecting cylinder abuts against the side face of the limiting block, and the other end of the connecting cylinder abuts against the side face of the fixing ring. The roller assembly can be detached and replaced when the roller assembly is abraded and aged, the abrasion resistance can be effectively improved, the service life can be effectively prolonged, and the roller assembly has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of coating roller technology, specifically a high wear-resistant PU coating roller. Background Technology

[0002] A coating roller is a tool used in industrial production to evenly apply liquid or semi-solid materials (such as paints, adhesives, inks, etc.) to the surface of a substrate. This roller typically consists of a metal core and an outer covering material. The outer material is selected according to different application requirements and can be rubber, polyurethane (PU), silicone, or other synthetic materials. Coating rollers are widely used in printing, papermaking, textiles, electronics, packaging, and many other industries.

[0003] Based on the above, the inventors have discovered the following problems: the surface PU layer of the current coating roller is prone to wear and aging during actual use. The PU layer and metal core of the traditional coating roller are fixedly connected by an adhesive layer. After wear and aging, the entire coating roller needs to be replaced, which is costly and inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a high wear-resistant PU coated roller in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a high-wear-resistant PU coating roller to solve the problems mentioned in the background art. A high-wear-resistant PU coating roller includes a metal core assembly, a roller assembly sleeved on the outside of the metal core assembly, the metal core assembly including a central shaft, a connecting portion on the outer side of the central shaft, a groove on the surface of the connecting portion, a limiting block fixedly installed at one end of the connecting portion, and a fixing hole at the other end of the connecting portion, a fixing ring sleeved on the outer side of the end of the central shaft with the fixing hole, the roller assembly including a connecting cylinder, the connecting cylinder sleeved on the outside of the connecting portion, a locking block inside the connecting cylinder engaging with the groove, one end of the connecting cylinder abutting against the side of the limiting block, and the other end of the connecting cylinder abutting against the side of the fixing ring.

[0006] By adopting the above technical solution, a roller assembly is sleeved on the outside of the metal core assembly, which facilitates the metal core assembly to provide the necessary strength and rigidity, and makes it easy to install the device with the coating machine. A locking block is provided inside the connecting cylinder, which engages with the locking slot to facilitate the fixed installation of the roller assembly on the outside of the connecting part, and the rotation of the central shaft can drive the roller assembly to rotate. One end of the connecting cylinder abuts against the side of the limiting block, and the other end of the connecting cylinder abuts against the side of the fixing ring, which facilitates the limiting block to limit one end of the connecting cylinder. The fixing ring fixes the connecting cylinder on the outside of the connecting part, thereby fixing the roller assembly and the metal core assembly to be connected. It also makes it easy to disassemble and replace worn and aged roller assemblies by removing the fixing ring, reducing the cost of use.

[0007] Furthermore, a screw hole is provided on one side of the fixing ring, and a fixing screw is inserted through the middle of the screw hole, and the fixing screw is threadedly connected to the fixing hole.

[0008] By adopting the above technical solution, a fixing screw is inserted through the middle of the screw hole, and the fixing screw is threadedly connected to the fixing hole, which facilitates the fixing screw to fix the fixing ring to the central shaft and facilitates the disassembly of the fixing ring.

[0009] Furthermore, keyways are provided at the top of both ends of the central shaft, and the keyways are used to cooperate with the transmission shaft of the coating machine for transmission.

[0010] By adopting the above technical solution, keyways are provided at the top of both ends of the central shaft, which facilitates the fixed connection between the central shaft and the transmission mechanism of the coating machine, thus ensuring the reliability of power transmission.

[0011] Furthermore, a transition layer is fixedly installed on the outside of the connecting cylinder, and a PU layer is sleeved on the outside of the transition layer.

[0012] By adopting the above technical solution, a transition layer is fixedly installed on the outside of the connecting cylinder, and a PU layer is sleeved on the outside of the transition layer. This facilitates the PU layer to improve wear resistance. The transition layer fixes the PU layer to the connecting cylinder and provides cushioning.

[0013] Furthermore, the connecting cylinder is made of engineering plastic, and the inner side of the connecting cylinder is coated with a solid lubricant.

[0014] By adopting the above technical solution, the connecting cylinder is made of engineering plastic and the inner side of the connecting cylinder is coated with solid lubricant. Engineering plastic has high strength and rigidity, which can maintain structural integrity under heavy loads. It is convenient for the metal core assembly to rotate stably and drive the roller assembly to rotate. The solid lubricant helps to reduce the friction between the connecting part and the connecting cylinder, thus facilitating the disassembly and installation of the roller assembly.

[0015] Furthermore, the transition layer is made of synthetic rubber, and a carbon fiber reinforcing material is embedded within it. By adopting the above technical solution, with the transition layer made of synthetic rubber and reinforced with carbon fiber, the transition layer can securely bond the connecting cylinder to the PU layer and provide cushioning for the PU layer. The carbon fiber reinforcing material increases the overall strength and rigidity, and improves fatigue resistance.

[0016] Furthermore, the PU layer is made of high molecular weight polyurethane material, and wear-resistant ceramic particles are embedded inside the PU layer.

[0017] By adopting the above technical solution, the PU layer is made of high molecular weight polyurethane material, and wear-resistant ceramic particles are embedded inside the PU layer. High molecular weight means longer molecular chains, which allows the PU layer to provide better wear resistance. Furthermore, the wear-resistant ceramic particles significantly improve its hardness and wear resistance, reducing wear on the PU layer surface. Additionally, the PU layer has rounded ends, and its length is consistent with the length of the connecting cylinder.

[0018] By adopting the above technical solution, the PU layer has a rounded structure at both ends, which helps to reduce stress concentration and improve the service life of the device.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The roller assembly is sleeved on the outside of the metal core assembly, which facilitates the provision of necessary strength and rigidity to the metal core assembly and makes it easy to install the device with the coating machine. A locking block is provided inside the connecting cylinder, which engages with a slot, facilitating the fixed installation of the roller assembly on the outside of the connecting part. This also allows the rotation of the central shaft to drive the roller assembly to rotate. One end of the connecting cylinder abuts against the side of the limiting block, and the other end abuts against the side of the fixing ring, allowing the limiting block to limit one end of the connecting cylinder. The fixing ring fixes the connecting cylinder on the outside of the connecting part, thus fixing the roller assembly and the metal core assembly together. Furthermore, the fixing ring can be easily disassembled for disassembly and replacement of worn and aged roller assemblies, reducing operating costs. This utility model allows for disassembly and replacement of worn and aged roller assemblies and effectively improves wear resistance and service life, possessing high practical value. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a high wear-resistant PU coated roller according to the present invention;

[0021] Figure 2 This is an exploded view of a high wear-resistant PU-coated roller according to the present invention.

[0022] Figure 3This is an exploded view of the metal core assembly of this utility model;

[0023] Figure 4 This is an exploded view of the roller assembly of this utility model;

[0024] Figure 5 This is a cross-sectional view of the roller assembly of this utility model.

[0025] In the diagram: 101, Metal core assembly; 10101, Central shaft; 10102, Connecting part; 10103, Slot; 10104, Keyway; 10105, Limiting block; 10106, Fixing ring; 10107, Fixing hole; 10108, Screw hole; 10109, Fixing screw; 102, Roller assembly; 10201, Connecting cylinder; 10202, Slot; 10203, Transition layer; 10204, PU layer. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] Please see Figures 1-5This utility model provides a technical solution: a high wear-resistant PU coating roller, including a metal core assembly 101, with a roller assembly 102 sleeved on the outside of the metal core assembly 101. The roller assembly 102 sleeved on the outside of the metal core assembly 101 provides the necessary strength and rigidity to the metal core assembly 101 and facilitates the installation of the device with a coating machine. The metal core assembly 101 includes a central shaft 10101, with a connecting portion 10102 on the outer side of the middle of the central shaft 10101. The surface of the 02 has a slot 10103. A limit block 10105 is fixedly installed at one end of the connecting part 10102, and a fixing hole 10107 is opened at the other end of the connecting part 10102. A fixing ring 10106 is sleeved on the outer side of one end of the central shaft 10101 with the fixing hole 10107. The roller assembly 102 includes a connecting cylinder 10201, which is sleeved on the outside of the connecting part 10102. A locking block 10202 is provided inside the connecting cylinder 10201, and the locking block 10202 and the slot are connected. The 10103 is engaged with the connecting cylinder 10201, which has a locking block 10202 inside. The locking block 10202 engages with the locking groove 10103, facilitating the fixed installation of the roller assembly 102 on the outside of the connecting part 10102. This also allows the rotation of the central shaft 10101 to drive the roller assembly 102 to rotate. One end of the connecting cylinder 10201 abuts against the side of the limiting block 10105, and the other end abuts against the side of the fixing ring 10106. The connecting cylinder 10201... The connecting cylinder 10201 abuts against the side of the limiting block 10105, and the other end of the connecting cylinder 10201 abuts against the side of the fixing ring 10106. This allows the limiting block 10105 to limit one end of the connecting cylinder 10201, and the fixing ring 10106 to fix the connecting cylinder 10201 to the outside of the connecting part 10102. This fixes the roller assembly 102 to the metal core assembly 101, and also makes it easy to disassemble the fixing ring 10106 to disassemble and replace the worn and aged roller assembly 102, thus reducing the cost of use.

[0028] The fixing ring 10106 has a screw hole 10108 on one side, and a fixing screw 10109 is inserted through the middle of the screw hole 10108. The fixing screw 10109 is threadedly connected to the fixing hole 10107. The fixing screw 10109 inserted through the middle of the screw hole 10108 and threadedly connected to the fixing hole 10107 facilitates the fixing screw 10109 to fix the fixing ring 10106 to the central shaft 10101 and facilitates the disassembly of the fixing ring 10106.

[0029] The central shaft 10101 has keyways 10104 at both ends of its top. The keyways 10104 are used to cooperate with the transmission shaft of the coating machine for transmission. The keyways 10104 at both ends of the central shaft 10101 facilitate the fixed connection between the central shaft and the transmission mechanism of the coating machine, ensuring the reliability of power transmission.

[0030] The connecting cylinder 10201 has a transition layer 10203 fixedly installed on its outer side. The transition layer 10203 is covered with a PU layer 10204. The transition layer 10203 is fixedly installed on the outer side of the connecting cylinder 10201, and the PU layer 10204 is covered with a PU layer 10204 on its outer side. This facilitates the PU layer 10204 to improve its wear resistance. The transition layer 10203 fixes the PU layer 10204 to the connecting cylinder 10201 and provides cushioning.

[0031] The connecting cylinder 10201 is made of engineering plastic, and its inner side is coated with a solid lubricant. Because the connecting cylinder 10201 is made of engineering plastic and its inner side is coated with a solid lubricant, the engineering plastic has high strength and rigidity, which can maintain structural integrity under heavy loads. This facilitates the rotation of the metal core assembly 101, which can stably drive the roller assembly 102 to rotate. The solid lubricant helps to reduce the friction between the connecting part 10102 and the connecting cylinder 10201, thereby facilitating the disassembly and installation of the roller assembly 102.

[0032] The transition layer 10203 is made of synthetic rubber and has carbon fiber reinforcement embedded inside. The synthetic rubber material and carbon fiber reinforcement in the transition layer 10203 facilitate a stable bond between the connecting cylinder 10201 and the PU layer 10204, and provide cushioning for the PU layer. The carbon fiber reinforcement increases the overall strength and rigidity, and improves fatigue resistance.

[0033] The PU layer 10204 is made of high molecular weight polyurethane material, and wear-resistant ceramic particles are embedded inside the PU layer 10204. The high molecular weight of the PU layer 10204 means longer molecular chains, which allows the PU layer to provide better wear resistance. In addition, the wear-resistant ceramic particles can significantly improve its hardness and wear resistance, reducing the wear on the surface of the PU layer 10204.

[0034] The PU layer 10204 has rounded ends, and its length is the same as that of the connecting cylinder 10201. The rounded ends of the PU layer 10204 help reduce stress concentration and improve the service life of the device.

[0035] Specifically, the working principle of this high-wear-resistant PU coating roller is as follows: During use, a roller assembly 102 is fitted around the outside of the metal core assembly 101. This provides the metal core assembly 101 with the necessary strength and rigidity, and facilitates the installation of the device with the coating machine. A locking block 10202 is provided inside the connecting cylinder 10201, which engages with the locking groove 10103, allowing the roller assembly 102 to be fixedly installed on the outside of the connecting part 10102. This also ensures that the rotation of the central shaft 10101 drives the roller assembly 102 to rotate. One end of the connecting cylinder 10201 abuts against the side of the limiting block 10105, and the other end abuts against the side of the fixing ring 10106, facilitating the positioning of the connecting cylinder by the limiting block 10105. One end of 10201 is limited, and the retaining ring 10106 fixes the connecting cylinder 10201 to the outside of the connecting part 10102, thereby fixing the roller assembly 102 to the metal core assembly 101. This also facilitates the removal and replacement of the retaining ring 10106 for worn or aged roller assemblies 102, reducing operating costs. A fixing screw 10109 is inserted through the middle of the screw hole 10108, and the fixing screw 10109 is threaded into the fixing hole 10107. This facilitates the fixing screw 10109 fixing the retaining ring 10106 to the central shaft 10101, and also facilitates the removal of the retaining ring 10106. Keyways 10104 are provided at the top of both ends of the central shaft 10101, facilitating the movement of the central shaft... A fixed connection is made with the transmission mechanism of the coating machine to ensure reliable power transmission. A transition layer 10203 is fixedly installed on the outside of the connecting cylinder 10201. A PU layer 10204 is sleeved on the outside of the transition layer 10203 to improve the wear resistance of the PU layer 10204. The transition layer 10203 fixes the PU layer 10204 to the connecting cylinder 10201 and provides cushioning. The connecting cylinder 10201 is made of engineering plastic, and the inside of the connecting cylinder 10201 is coated with a solid lubricant. Engineering plastic has high strength and rigidity, and can maintain structural integrity under heavy loads, facilitating the stable rotation of the metal core assembly 101 to drive the roller assembly 102. The solid lubricant helps reduce the wear of the connecting parts. The friction between 0102 and the connecting cylinder 10201 facilitates the disassembly and installation of the roller assembly 102. The transition layer 10203 is made of synthetic rubber and contains carbon fiber reinforcement, which allows it to firmly bond the connecting cylinder 10201 to the PU layer 10204 and provide cushioning for the PU layer. The carbon fiber reinforcement increases the overall strength and rigidity, improving fatigue resistance. The PU layer 10204 is made of high molecular weight polyurethane and contains wear-resistant ceramic particles. The high molecular weight means longer molecular chains, allowing the PU layer to provide better wear resistance.Furthermore, the particle-reinforced material of the wear-resistant ceramic material significantly improves its hardness and wear resistance, reducing wear on the surface of the PU layer 10204. The rounded ends of the PU layer 10204 also help reduce stress concentration, thus extending the service life of the device.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high wear resistant PU coated roll, characterized in that, The application relates to a metal core assembly (101) which is externally sleeved with a roller assembly (102), the metal core assembly (101) comprises a central shaft (10101), a connecting part (10102) is arranged on the outer side of the middle part of the central shaft (10101), a clamping groove (10103) is formed on the surface of the connecting part (10102), a limiting block (10105) is fixedly installed at one end of the connecting part (10102), a fixing hole (10107) is formed at the other end of the connecting part (10102), a fixing ring (10106) is sleeved on the outer side of one end of the fixing hole (10107) of the central shaft (10101), the roller assembly (102) comprises a connecting cylinder (10201), the connecting cylinder (10201) is sleeved on the outer side of the connecting part (10102), a clamping block (10202) is arranged in the connecting cylinder (10201), the clamping block (10202) is clamped and connected with the clamping groove (10103), one end of the connecting cylinder (10201) abuts against the side surface of the limiting block (10105), and the other end of the connecting cylinder (10201) abuts against the side surface of the fixing ring (10106).

2. The high wear resistant PU coating roller according to claim 1, wherein, A screw hole (10108) is formed on one side of the fixing ring (10106), a fixing screw (10109) is inserted in the middle part of the screw hole (10108), and the fixing screw (10109) is in threaded connection with the fixing hole (10107).

3. The high wear resistant PU coating roller according to claim 2, wherein, Key grooves (10104) are formed on the top of both ends of the central shaft (10101), and the key grooves (10104) are used for cooperating with a transmission shaft of a coating machine.

4. The high wear resistant PU coating roller according to claim 1, wherein, A transition layer (10203) is fixedly installed on the outer side of the connecting cylinder (10201), and a PU layer (10204) is sleeved on the outer side of the transition layer (10203).

5. The high wear resistant PU coating roller according to claim 4, wherein, The material of the connecting cylinder (10201) is engineering plastic, and the inner side of the connecting cylinder (10201) is coated with a solid lubricant.

6. The high wear resistant PU coating roller according to claim 4, wherein, The material of the transition layer (10203) is synthetic rubber, and a reinforcing material made of carbon fiber is implanted in the transition layer (10203).

7. The high wear resistant PU coating roller according to claim 4, wherein, The material of the PU layer (10204) is high-molecular-weight polyurethane material, and a particle reinforcing material made of wear-resistant ceramic is implanted in the PU layer (10204).

8. The high wear resistant PU coating roller according to claim 7, characterized in that, Both ends of the PU layer (10204) are in circular arc structures, and the length of the PU layer (10204) is consistent with the length of the connecting cylinder (10201).

Images