A scale cleaning tool for a work die steel

By designing a scraper tool combined with a gas delivery system, the problem of repeated operation required by existing tools was solved, achieving a highly efficient cleaning effect of the oxide layer.

CN224372203UActive Publication Date: 2026-06-19TIANGONG AIHE SPECIAL STEEL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANGONG AIHE SPECIAL STEEL
Filing Date
2025-07-01
Publication Date
2026-06-19

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Abstract

This utility model discloses a tool for cleaning oxide scale in tool and die steel forging, relating to the field of tool and die steel forging technology. It includes a scraper, which is an arc-shaped plate with beveled edges on both the upper and lower edges. A mounting base is provided on the upper end of one side of the concave arc surface of the scraper. A diverter pipe redirects the gas delivered from the front section rod and delivers it to a transverse air pipe, serving as a gas diversion and guide. A fixed shaft supports the transverse air pipe, ensuring its stability and normal operation. Exhaust holes at the bottom of the transverse air pipe evenly blow gas onto the support platform surface. While scraping off large pieces of oxide scale from the billet, the airflow also blows away small particles of oxide scale, preventing them from adhering to the support platform surface. In practice, the scale can be cleaned in a single operation, eliminating the need for repeated operations, reducing the workload of workers and greatly improving cleaning efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of tool and die steel forging technology, and specifically to a tool for cleaning oxide scale in tool and die steel forging. Background Technology

[0002] Tool and die steel is a type of steel specifically designed for manufacturing molds. It is widely used in various industrial fields, such as machinery manufacturing, radio instruments, motors, and electrical appliances. It is one of the most important materials in mold manufacturing, directly affecting the performance, service life, and manufacturing cycle of molds.

[0003] During the forging of stamping die steel, the oxide layer on the surface of the billet will fall off onto the support platform. The traditional method is to manually hold a push handle and use the scraper at the front end of the push handle to push the fallen material off the support platform. Relying solely on the scraper requires repeated operation, the billet temperature is very high, the working environment for manual labor is harsh, and small particles cannot be scraped off completely.

[0004] In summary, the existing tools for cleaning oxide layer peeling off blanks used in stamping die steel forging have the following problems: they require repeated driving of the scraper to clean the peeling material on the support platform, which is time-consuming, labor-intensive, and has poor cleaning effect. Utility Model Content

[0005] The purpose of this utility model is to provide a tool for cleaning oxide scale in forging die steel, so as to solve the technical problem that existing tools for cleaning oxide scale from forging blanks in stamping die steel require repeated driving of scrapers to clean the scale off the support platform, which is time-consuming, labor-intensive, and has poor cleaning effect.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A tool for cleaning oxide scale in forging die steel.

[0008] The device includes a scraper, which is an arc-shaped plate with beveled shovel surfaces at both its upper and lower edges. A mounting base is provided at the upper end of one side of the concave arc surface of the scraper. A flow-transfer pipe communicating with the mounting base is provided at the center of the side of the scraper that protrudes from the arc surface. A transverse air pipe distributed along the extension direction of the scraper is provided at the output end of the flow-transfer pipe. Several sets of equally spaced exhaust holes are provided at the bottom of the transverse air pipe. Several sets of fixed shafts for supporting the transverse air pipe are provided on the side of the scraper that protrudes from the arc surface, and the fixed shafts are equally spaced on both sides of the flow-transfer pipe.

[0009] Preferably, the mounting base has an internal threaded connection to a front end section rod.

[0010] Preferably, the end of the front section rod away from the mounting base is movably connected to an adapter section rod, and the adapter section rod away from the front section rod is movably connected to a rear section rod.

[0011] Preferably, the input end of the rear section is provided with an air inlet seat, and the air inlet seat is an L-shaped tube with the input end of the air inlet seat facing upward.

[0012] Preferably, a flow valve is provided on the outer side of the end of the rear section rod near the intake seat.

[0013] Preferably, the front end section, the adapter section, and the rear end section are provided with gas flow channels for connecting the mounting base and the air inlet base.

[0014] Preferably, both the end of the front section rod used to connect to the adapter section rod and the end of the adapter section rod used to connect to the rear section rod are provided with threaded grooves, and the diameter of the threaded grooves is larger than the diameter of the gas flow channel.

[0015] Preferably, both the end of the adapter rod used to connect to the front end rod and the end of the rear end rod used to connect to the adapter rod are provided with a threaded tube that matches the threaded groove, and the threaded tube is threadedly connected to the threaded groove.

[0016] Preferably, limit rings are symmetrically provided on the outer side of the connection end between the front section and the adapter section, and on the outer side of the connection end between the adapter section and the rear section.

[0017] Preferably, the outer side of the connection end between the front section and the adapter section, and the outer side of the connection end between the adapter section and the rear section are both threadedly connected with fastening sleeves that match the limiting retaining ring.

[0018] The beneficial effects of this utility model are:

[0019] 1. In this utility model, the diverter pipe redirects the gas delivered by the front section rod and delivers it to the transverse air pipe, playing the role of gas redirection and guidance. The fixed shaft is used to support the transverse air pipe, ensuring its stability and enabling it to work normally. The exhaust hole at the bottom of the transverse air pipe can blow the gas evenly onto the surface of the support platform. While scraping off large pieces of oxide layer debris from the billet, the airflow can also blow away small particles of oxide layer debris from the billet, preventing small particles of oxide layer debris from adhering to the surface of the support platform. In actual operation, it can be blown clean in one operation without repeated operation, reducing the workload of the workers and greatly improving the cleaning efficiency.

[0020] 2. In this utility model, the front section, the adapter section, and the rear section are connected by threaded pipes and threaded grooves to achieve detachable connection between the sections. This allows for easy adjustment of the tool length according to actual usage needs, adapting to the cleaning of tool steel of different sizes and positions. The fastening sleeve is connected to the outer side of the connection end of each section by threads. Tightening the sleeve enhances the connection stability between the sections and prevents loosening between them during use. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional schematic diagram of the device in this utility model;

[0023] Figure 2 This is a schematic diagram of the combination of the transfer tube and the transverse air tube in this utility model;

[0024] Figure 3 This is a schematic diagram of the front end section rod and the threaded groove in this utility model;

[0025] Figure 4 This is a schematic diagram of the fit between the adapter rod and the threaded tube in this utility model.

[0026] In the diagram: 1. Scraper; 2. Mounting seat; 3. Front end rod; 4. Adaptor rod; 5. Rear end rod; 6. Inlet seat; 7. Flow valve; 8. Diverter pipe; 9. Transverse air pipe; 10. Exhaust port; 11. Fixed shaft; 12. Gas flow channel; 13. Threaded groove; 14. Insert threaded pipe; 15. Limiting ring; 16. Fastening sleeve. Detailed Implementation

[0027] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0028] like Figure 1-4 As shown, a tool for cleaning oxide scale in forging die steel is provided.

[0029] The system includes a scraper 1, which is an arc-shaped plate. The upper and lower edges of the scraper 1 are provided with beveled surfaces. A mounting base 2 is located at the upper end of one side of the concave arc surface of the scraper 1. A diverter pipe 8, communicating with the mounting base 2, is located at the center of the side of the scraper 1 protruding from the arc surface. A transverse air pipe 9, distributed along the extension direction of the scraper 1, is located at the output end of the diverter pipe 8. Several sets of equally spaced exhaust holes 10 are located at the bottom of the transverse air pipe 9. Several sets of fixed shafts 11 for supporting the transverse air pipe 9 are located on the side of the scraper 1 protruding from the arc surface, and the fixed shafts 11 are equally spaced on both sides of the diverter pipe 8. A front end section 3 is internally threaded to the mounting base 2. An adapter section 4 is movably connected to the end of the front end section 3 away from the mounting base 2. The adapter section 4 is movably connected away from the front end section 3. The rear section rod 5 is connected, and an air inlet seat 6 is provided at the input end of the rear section rod 5. The air inlet seat 6 is an L-shaped tube with the input end facing upwards. A flow valve 7 is provided on the outer side of the end of the rear section rod 5 near the air inlet seat 6. Gas flow channels 12 for connecting the mounting base 2 and the air inlet seat 6 are opened inside the front section rod 3, the adapter section rod 4, and the rear section rod 5. Threaded grooves 13 are opened at the end of the front section rod 3 that connects to the adapter section rod 4 and at the end of the adapter section rod 4 that connects to the rear section rod 5. The diameter of the threaded grooves 13 is larger than the diameter of the gas flow channels 12. Inserted threaded tubes 14 that match the threaded grooves 13 are provided at the end of the adapter section rod 4 that connects to the front section rod 3 and at the end of the rear section rod 5 that connects to the adapter section rod 4. 14 is threaded to the threaded groove 13. Limiting rings 15 are symmetrically provided on the outer side of the connection end between the front section 3 and the adapter section 4, and on the outer side of the connection end between the adapter section 4 and the rear section 5. Fastening sleeves 16 matching the limiting rings 15 are threadedly connected to the outer side of the connection end between the front section 3 and the adapter section 4, and on the outer side of the connection end between the adapter section 4 and the rear section 5. The scraper 1 is used to scrape off the oxide layer of the billet attached to the surface of the support platform. The inclined shovel surfaces at the upper and lower edges can increase the scraping force and improve the cleaning efficiency. The mounting base 2 is used to connect the scraper 1 and the front section 3, realizing the connection between the scraper 1 and the gas conveying part, so that the gas can smoothly enter the interior of the scraper 1. The diversion pipe 8 diverts the gas conveyed by the front section 3 and The gas is conveyed into the transverse air pipe 9, serving as a gas deflector and guide. The fixed shaft 11 supports the transverse air pipe 9, ensuring its stability and normal operation. The exhaust port 10 at the bottom of the transverse air pipe 9 can evenly blow the gas onto the surface of the support platform. While scraping off large pieces of oxide layer debris from the billet, the airflow can also blow away small particles of oxide layer debris, preventing them from adhering to the surface of the support platform. In practice, the debris can be blown away cleanly in one operation, eliminating the need for repeated operations, reducing the workload of the workers, and greatly improving cleaning efficiency. The front section 3, the adapter section 4, and the rear section 5 are connected by threads through the threaded tube 14 and the threaded groove 13, achieving a detachable connection between the sections.The tool's length is easily adjustable to suit different sizes and positions of tooling steel for cleaning. The air inlet 6 connects to an external air source; its L-shaped design prevents interference with other components during connection. The flow valve 7 controls the gas flow rate entering the tool, allowing for flexible adjustment based on the degree of oxide scale adhesion and cleaning requirements to improve cleaning effectiveness. The gas channel 12 provides a pathway for gas flow within each section, ensuring smooth gas delivery from the air inlet 6 to the scraper 1. The limiting ring 15 restricts the movement range of the fastening sleeve 16, preventing excessive movement during tightening and ensuring proper fit between the connecting ends of each section. The fastening sleeve 16 is threaded to the outer side of each section's connecting end; tightening enhances the connection stability between sections and prevents loosening during use.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] The working principle of this utility model is as follows: Based on the size and position of the tool steel, select an appropriate number of adapter rods 4, and assemble the front end rod 3, adapter rods 4, and rear end rod 5 together by threaded connection of the threaded tube 14 and the threaded groove 13. Then, connect the scraper 1 to the front end rod 3 by threaded connection of the mounting seat 2 to complete the tool assembly. Connect the air inlet seat 6 to the external air source, and adjust the gas flow rate into the tool by the flow valve 7. The operator holds the rear end rod 5 and places the scraper 1 against the surface of the support platform to clean the oxide layer debris from the billet. At the same time, the gas enters the transfer pipe 8 through the gas flow channel 12, then enters the transverse air pipe 9, and is evenly blown onto the surface of the support platform from the exhaust hole 10 to blow away the small particles of oxide layer debris from the billet. After cleaning, loosen the fastening sleeve 16 and disassemble each rod for easy storage and carrying.

[0032] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A tool for cleaning oxide scale in forging tool and die steel, characterized in that: Includes a scraper (1), and the scraper (1) is an arc-shaped plate. The upper and lower edges of the scraper (1) are provided with inclined shovel surfaces. The upper end of one side of the concave arc surface of the scraper (1) is provided with a mounting base (2). The center of the side of the scraper (1) that protrudes from the arc surface is provided with a flow pipe (8) that communicates with the mounting base (2). The output end of the flow pipe (8) is provided with a transverse air pipe (9) distributed along the extension direction of the scraper (1). The bottom of the transverse air pipe (9) is provided with several sets of equally spaced exhaust holes (10). The side of the scraper (1) that protrudes from the arc surface is provided with several sets of fixed shafts (11) for supporting the transverse air pipe (9), and the fixed shafts (11) are equally spaced on both sides of the flow pipe (8).

2. The scale cleaning tool for forging a tool steel according to claim 1, wherein The mounting base (2) is internally threaded with a front end section rod (3).

3. The oxide scale cleaning tool for forging tool and die steel according to claim 2, characterized in that, The end of the front section (3) away from the mounting base (2) is movably connected to the adapter section (4), and the adapter section (4) away from the front section (3) is movably connected to the rear section (5).

4. The oxide scale cleaning tool for forging tool and die steel according to claim 3, characterized in that, The input end of the rear section rod (5) is provided with an air inlet seat (6), and the air inlet seat (6) is an L-shaped tube with the input end of the air inlet seat (6) facing upward.

5. A tool for cleaning oxide scale in tool and die steel forging according to claim 4, characterized in that, A flow valve (7) is provided on the outer side of the end of the rear section rod (5) near the air intake seat (6).

6. A tool for cleaning oxide scale in tool and die steel forging according to claim 5, characterized in that, The front end section (3), the adapter section (4) and the rear end section (5) are provided with gas flow channels (12) for connecting the mounting base (2) and the air inlet base (6).

7. A tool for cleaning oxide scale in tool and die steel forging according to claim 3, characterized in that, The front end of the rod (3) for connecting to the adapter rod (4) and the end of the adapter rod (4) for connecting to the rear end rod (5) are both provided with threaded grooves (13), and the diameter of the threaded grooves (13) is larger than the diameter of the gas flow channel (12).

8. A tool for cleaning oxide scale in tool and die steel forging according to claim 7, characterized in that, The adapter rod (4) is used to connect one end of the front end rod (3) and the rear end rod (5) is used to connect one end of the adapter rod (4). Both are provided with a threaded tube (14) that matches the threaded groove (13), and the threaded tube (14) is threadedly connected to the threaded groove (13).

9. A tool for cleaning oxide scale in tool and die steel forging according to claim 3, characterized in that, Limiting rings (15) are symmetrically provided on the outer side of the connection end between the front end section (3) and the adapter section (4) and the outer side of the connection end between the adapter section (4) and the rear end section (5).

10. A tool for cleaning oxide scale in tool and die steel forging according to claim 9, characterized in that, The outer side of the connection end between the front end section (3) and the adapter section (4) and the outer side of the connection end between the adapter section (4) and the rear end section (5) are threadedly connected with fastening sleeves (16) that match the limiting retaining ring (15).