Copper scraper assembly for hot press
By using a copper scraper assembly with a rotating bearing and a rotatable pin in the hot press, the problem of loose copper scraper adhesion after steel strip deformation is solved, achieving automatic adhesion and efficient foreign matter removal, thus improving equipment lifespan and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-03-17
AI Technical Summary
In existing hot presses, the original straight copper scraper cannot fit tightly after the steel strip is deformed, resulting in incomplete removal of foreign objects, affecting the lifespan of the equipment and product quality, and posing safety hazards.
The design employs a rotating bearing and a rotatable pin, enabling the copper scraper to automatically conform to the deformed steel strip. The height can be adjusted by rotating the copper scraper unit, ensuring that the copper scraper assembly can closely adhere to the surface of the steel strip and promptly remove foreign objects.
It enables the automatic bonding of copper scraper components even when the steel strip is deformed, improving the efficiency of foreign object removal, extending equipment life, and ensuring product quality consistency and safety.
Smart Images

Figure CN223996730U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of copper scraper technology, specifically a copper scraper assembly for a hot press. Background Technology
[0002] A hot press is a processing device that presses and shapes materials under high temperature and high pressure. Its working principle mainly includes three basic steps: heating, pressurizing, and cooling. When the hot press is working, foreign objects are prone to appear on the upper end of the steel strip. If these foreign objects are not cleaned in time, they can easily affect the normal operation of the hot press. Foreign objects may cause scratches or dents on the surface of the steel strip. These damages not only affect the service life of the steel strip, but also affect the quality of the pressed products. Foreign objects on the steel strip may also fall off during high-speed operation, causing equipment damage or personal injury, increasing the safety risks and posing dangers during operation.
[0003] In existing technology, an original straight copper scraper is usually installed at the upper end of the steel strip to clean foreign objects from the surface of the steel strip. The original straight copper scraper is adjusted in height according to the copper blocks on both sides. When there is no obvious deformation of the steel strip, it can effectively adhere to the steel strip to clean foreign objects. When foreign objects are adhering to the steel strip, the copper scraper scrapes the foreign objects off the steel strip with its sharp edges. Since copper is relatively soft, it will not damage the surface of the steel strip. At the same time, the copper scraper can also be installed in the rotating machine through a fixed bracket to maintain continuous contact with the steel strip and ensure that foreign objects are continuously cleaned during the operation of the steel strip.
[0004] However, after prolonged operation, the steel strip of the hot press becomes severely deformed, while the original straight copper scraper remains in a straight line, making it unable to closely adhere to the steel strip for foreign object removal. Long-term interference and damage from foreign objects will accelerate the wear and tear of the equipment, shorten the service life of the hot press and its key components, and the presence of foreign objects may also lead to uneven pressure distribution during the hot pressing process, thereby affecting the consistency and quality of the products. Therefore, improvements are needed. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the problems mentioned in the background section, this invention provides a copper scraper assembly for a hot press, which has the advantage of automatically conforming to deformed steel strips.
[0007] The system utilizes a rotating bearing and a rotatable pin to automatically adhere the copper scraper to the deformed steel strip. By setting the rotating bearing and rotatable pin, the first copper scraper and the adjacent third copper scraper can rotate around the rotating bearing, while the copper scraper unit can rotate around the rotatable pin, thereby changing the height of the copper scraper unit. When the copper scraper assembly is placed on the upper end of the deformed steel strip, it automatically adheres to the deformed steel strip at different heights due to the influence of the chain and its own weight, thus promptly cleaning up foreign objects.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a copper scraper assembly for a hot press, comprising a device housing, a splicing iron plate, and copper scraper units. The copper scraper unit includes a chain, a first copper scraper, a second copper scraper, a third copper scraper, a first fixing bolt, and a second fixing bolt. The outer right end screw hole of the chain, the left end screw hole of the first copper scraper, and the right end screw hole of the second copper scraper are all connected to the first fixing bolt. The outer left end screw hole of the chain, the left end screw hole of the second copper scraper, and the right end screw hole of the third copper scraper are all connected to the second fixing bolt. A rotating bearing is installed in the mounting holes of the first and third copper scrapers adjacent to the copper scraper units.
[0010] Multiple U-shaped grooves are provided on both sides of the symmetrical position inside the splicing iron plate. A first connecting rod is welded inside each of the multiple symmetrical U-shaped grooves. Rotatable pins are installed at both ends of the multiple first connecting rods. The inner ring of the multiple rotatable pins is rotatably connected to the inner side of the chain.
[0011] Preferably, the third copper scraper of the same copper scraper unit is located outside the second copper scraper, the second copper scraper of the same copper scraper unit is located between the first copper scraper and the third copper scraper, the first copper scraper of the same copper scraper unit is located between the chain and the second copper scraper, and the first copper scraper of an adjacent copper scraper unit is located outside the third copper scraper.
[0012] Preferably, the device housing is provided with multiple movable devices inside, each including a sliding rod, a limiting block, a sliding bushing, a second connecting rod, and a fixing mechanism. The upper surface of the splicing iron plate is provided with multiple O-grooves, and the outer surfaces of the multiple fixing mechanisms are fixedly connected to the interior of the device housing.
[0013] Preferably, the outer surface of the sliding rod is slidably connected to the inner surface of the sliding bushing, the upper end of the sliding rod is fixedly connected to the limiting block, the two sides of the sliding bushing are installed and connected to the second connecting rods, and the other ends of the two second connecting rods are installed and connected to the fixing mechanism.
[0014] Preferably, the lower ends of the plurality of sliding rods are inserted into the interior of the O-groove.
[0015] Preferably, the first, second, and third copper scrapers are all copper scrapers with the same bending angle and tilt angle, and the first, second, and third copper scrapers are all on the same horizontal line.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] This invention, through the setting of a rotating bearing and a rotatable pin, enables the copper scraper to automatically adhere to the deformed steel strip. It also allows the first copper scraper and the adjacent third copper scraper to rotate around the rotating bearing, while the copper scraper unit can rotate around the rotatable pin, thereby causing the height of the copper scraper unit to change periodically. When the copper scraper assembly is located at the upper end of the deformed steel strip, it automatically adheres to the deformed steel strip at different heights due to the influence of the chain and its own weight, thus promptly cleaning foreign objects. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the distribution structure of the copper scraper unit;
[0021] Figure 3 This is a schematic diagram of the copper scraper unit.
[0022] Figure 4 for Figure 2 Enlarged view of the structure at point A in the middle;
[0023] Figure 5 This is a schematic diagram of the active device.
[0024] In the diagram: 1. Device housing; 2. Splicing iron plate; 201. U-shaped groove; 202. O-shaped groove; 3. Copper scraper unit; 301. Chain; 302. First copper scraper; 303. Second copper scraper; 304. Third copper scraper; 305. First fixing bolt; 306. Second fixing bolt; 4. Rotating bearing; 5. First connecting rod; 6. Rotatable pin; 7. Movable device; 701. Sliding rod; 702. Limiting block; 703. Sliding bushing; 704. Second connecting rod; 705. Fixing mechanism. 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] like Figures 1 to 5 As shown, this utility model provides a copper scraper assembly for a hot press, including a device housing 1, a splicing iron plate 2, and a copper scraper unit 3. The copper scraper unit 3 includes a chain 301, a first copper scraper 302, a second copper scraper 303, a third copper scraper 304, a first fixing bolt 305, and a second fixing bolt 306. The outer right end screw hole of the chain 301, the left end screw hole of the first copper scraper 302, and the right end screw hole of the second copper scraper 303 are all connected to the first fixing bolt 305. The outer left end screw hole of the chain 301, the left end screw hole of the second copper scraper 303, and the right end screw hole of the third copper scraper 304 are all connected to the second fixing bolt 306. The mounting holes of the first copper scraper 302 and the third copper scraper 304 of the adjacent copper scraper unit 3 are all fitted with a rotating bearing 4.
[0027] Multiple U-shaped grooves 201 are provided on both sides of the symmetrical internal position of the splicing iron plate 2. A first connecting rod 5 is welded inside each of the multiple symmetrical U-shaped grooves 201. Rotatable pins 6 are installed at both ends of the multiple first connecting rods 5. The inner rings of the multiple rotatable pins 6 are rotatably connected to the inner side of the chain 301. With the cooperation of the rotating bearing 4 and the rotatable pins 6, the copper scraper automatically adheres to the deformed steel strip. By setting the rotating bearing 4 and the rotatable pins 6, the first copper scraper 302 and the adjacent third copper scraper 304 can rotate around the rotating bearing 4, and the copper scraper unit 3 can rotate around the rotatable pins 6, thereby changing the height of the copper scraper unit 3. When the copper scraper assembly is placed on the upper end of the deformed steel strip, it automatically adheres to the deformed steel strip at different heights due to the influence of the chain 301 and its own weight, so as to clean up foreign objects in a timely manner.
[0028] like Figure 4As shown, the third copper scraper 304 of the same copper scraper unit 3 is located outside the second copper scraper 303. The second copper scraper 303 of the same copper scraper unit 3 is located between the first copper scraper 302 and the third copper scraper 304. The first copper scraper 302 of the same copper scraper unit 3 is located between the chain 301 and the second copper scraper 303. The first copper scraper 302 of adjacent copper scraper units 3 is located outside the third copper scraper 304. The first copper scraper 302, the second copper scraper 303, and the third copper scraper 304 are all copper scrapers with the same bending angle and tilt angle. The first copper scraper 302, the second copper scraper 303, and the third copper scraper 304 are all on the same horizontal line. By setting copper scrapers with the same bending angle and tilt angle, the overall stability of the copper scraper assembly is improved while ensuring that the copper scraper can perform the function of cleaning foreign objects at the upper end of the steel strip.
[0029] like Figure 1 , 5 As shown, the device housing 1 has multiple movable devices 7 inside. Each movable device 7 includes a sliding rod 701, a limiting block 702, a sliding bushing 703, a second connecting rod 704, and a fixing mechanism 705. The upper surface of the splicing iron plate 2 is provided with multiple O-grooves 202. The outer surfaces of the multiple fixing mechanisms 705 are fixedly connected to the interior of the device housing 1. The outer surface of the sliding rod 701 is slidably connected to the inner surface of the sliding bushing 703. The upper end of the sliding rod 701 is fixedly connected to the limiting block 702. The two sides of the sliding bushing 703 are installed and connected to the second connecting rod 704. The other ends of the two second connecting rods 704 are installed and connected to the fixing mechanism 705. By setting the sliding rod 701 to slide inside the sliding bushing 703, it can only move up and down when needed, while ensuring that the splicing iron plate 2 moves up and down, and will not move left and right during normal operation, which would cause the copper scraper assembly to not fit tightly with the steel strip, thus improving the stability of the copper scraper assembly in contact with the steel strip.
[0030] like Figure 2 , 5 As shown, the lower ends of multiple sliding rods 701 are inserted into the O-groove 202; by setting a direct insertion method, the movable device 7 and the splicing iron plate 2 are fixed at the same time, and the sliding rods 701 are easily removed from the O-groove 202, which facilitates the separation of the movable device 7 and the splicing iron plate 2 and improves the efficiency of disassembly and installation.
[0031] Working principle and usage process of this utility model:
[0032] When cleaning foreign objects from a deformed steel strip, the copper scraper assembly is first placed at the top of the deformed steel strip. When the deformed steel strip is concave inward, the lower end of the copper scraper unit 3 is a certain distance away from the deformed steel strip. Due to the influence of the chain 301 and its own weight, the chain 301 rotates around the rotatable pin 6. At the same time, the first copper scraper 302 and the adjacent third copper scraper 304 rotate around the rotating bearing 4, causing the copper scrapers to descend until they are in close contact with the deformed steel strip. When the deformed steel strip protrudes upward, it will push up the copper scraper unit 3 until it stops. At the same time, the copper scrapers will also be in close contact with the deformed steel strip. Finally, the copper scraper assembly cleans the foreign objects from the deformed steel strip.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] 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 copper doctor blade assembly for a hot press comprising a device housing (1), a splice iron plate (2), a copper doctor blade unit (3), characterized in that: The copper scraper unit (3) comprises a chain (301), a first copper scraper (302), a second copper scraper (303), a third copper scraper (304), a first fixing bolt (305), and a second fixing bolt (306). The outer right end screw hole of the chain (301) is connected with the left end screw hole of the first copper scraper (302) and the right end screw hole of the second copper scraper (303) through the first fixing bolt (305). The outer left end screw hole of the chain (301) is connected with the left end screw hole of the second copper scraper (303) and the right end screw hole of the third copper scraper (304) through the second fixing bolt (306). The mounting hole of the first copper scraper (302) of the adjacent copper scraper unit (3) is connected with the mounting hole of the third copper scraper (304) through a rotating bearing (4). A plurality of U-shaped grooves (201) are arranged on both sides of the inner symmetrical position of the spliced iron plate (2). A first connecting rod (5) is welded in each U-shaped groove (201). A rotatable pin shaft (6) is arranged at the two ends of the first connecting rod (5). The inner ring of the rotatable pin shaft (6) is rotatably connected with the inner side of the chain (301).
2. The copper doctor blade assembly for a hot press of claim 1, wherein: The third copper scraper (304) of the same copper scraper unit (3) is arranged outside the second copper scraper (303). The second copper scraper (303) of the same copper scraper unit (3) is arranged between the first copper scraper (302) and the third copper scraper (304). The first copper scraper (302) of the same copper scraper unit (3) is arranged between the chain (301) and the second copper scraper (303). The first copper scraper (302) of the adjacent copper scraper unit (3) is arranged outside the third copper scraper (304).
3. The copper doctor blade assembly for a hot press of claim 1, wherein: A plurality of movable devices (7) are arranged in the device housing (1). The movable device (7) comprises a sliding rod (701), a limiting block (702), a sliding shaft sleeve (703), a second connecting rod (704), and a fixing mechanism (705). A plurality of O-shaped grooves (202) are arranged in the upper surface of the spliced iron plate (2). The outer surface of the fixing mechanism (705) is fixedly connected with the inner side of the device housing (1).
4. The copper doctor blade assembly for a hot press of claim 3, wherein: The outer surface of the sliding rod (701) is slidably connected with the inner surface of the sliding shaft sleeve (703). The upper end of the sliding rod (701) is fixedly connected with the limiting block (702). The two sides of the sliding shaft sleeve (703) are fixedly connected with the second connecting rod (704). The other end of the second connecting rod (704) is fixedly connected with the fixing mechanism (705).
5. The copper doctor blade assembly for a hot press of claim 3, wherein: The lower end of the sliding rod (701) is inserted into the O-shaped groove (202).
6. The copper doctor blade assembly for a hot press of claim 1, wherein: The first copper scraper (302), the second copper scraper (303), and the third copper scraper (304) are copper scrapers with the same bending angle and inclination angle. The first copper scraper (302), the second copper scraper (303), and the third copper scraper (304) are arranged on the same horizontal line.