Cleaning device for upper die head of blank pressing machine
By designing a die head cleaning device for a billet press with a slanted scraper and slanted scraper structure, the problem of poor cleaning effect of the upper die head was solved, achieving efficient die cleaning and residue collection, and improving the quality of the pressed billet.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYOU ZHONGHUA FURNACE KILN ENG CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the cleaning effect of the upper die head of the pressing machine is not good and the efficiency is low, which makes it difficult to completely remove the residue and affect the quality of the pressed blank.
A cleaning device for the upper die head of a billet press is designed, which adopts a structure of inclined scraper and inclined scraper plate. The inclined scraper scrapes off the residue on the outer periphery of the upper die plate and collects it into the cavity, while the inclined scraper plate scrapes off the residue on the lower surface of the lower die plate. The combination of limit screws and guide structure ensures the cleaning effect.
It achieves efficient cleaning of the upper and lower templates, avoids residue leakage, and improves the forming quality and cleaning efficiency of the pressed blank.
Smart Images

Figure CN224224157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refractory brick processing technology, and in particular to a cleaning device for the upper die head of a pressing machine. Background Technology
[0002] Refractory bricks are formed by pressing using a pressing machine. After pressing, flaky residue remains on the outer periphery of the upper die, the lower surface, and the lower mold plate. If this residue is not cleaned, it will adhere poorly to the pressed brick during subsequent pressing, easily forming indentations and affecting the quality of the brick. Currently, operators need to clean the upper and lower dies after each pressing. A common method is using a cleaning brush, but this is inconvenient for cleaning residues that adhere well. Another method is using a scraper, which requires multiple scrapings to complete the cleaning. While this improves cleaning efficiency, it leaves some areas untouched and the area around the upper mold plate incompletely cleaned. Utility Model Content
[0003] This utility model provides a cleaning device for the upper die head of a pressing machine to overcome the shortcomings of the prior art, and to solve the problems of poor cleaning effect and low cleaning efficiency of the upper die head, and has strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:
[0005] A blanking die head cleaning device for a blanking machine. The blanking machine includes a machine base, on which multiple columns are bolted to be installed. An upper plate is installed at the upper end of each column. A push rod is movably provided on the upper plate. An upper template is installed at the lower end of the push rod. The device also includes a pair of parallel side plates installed on the machine base. A transverse hole is provided on the side plate. The rear end of the side plate extends out of the machine base.
[0006] A pair of concave frames are provided between the side plates. The lower end of the vertical section of the concave frame is connected to a limit screw by a thread. The limit screw passes through the transverse hole.
[0007] A vertical groove is provided on the vertical section of the concave frame, and a limiting pin with an end cap is inserted through the vertical groove. The inner end of the limiting pin is provided with a shell, and an inner scraper is provided inside the shell. A scraper is provided at the lower end of the shell.
[0008] Furthermore, an upper ring is welded to the upper end of the outer shell;
[0009] The inner scraper includes a rectangular circumference welded to the inner circumference of the upper ring, a rectangular frame bent at the lower end of the rectangular circumference, an inner rectangular circumference bent upward at the inner circumference of the rectangular frame, and an oblique scraper bent inward at the upper end of the inner rectangular circumference. The upper end of the oblique scraper extends inward at an oblique angle, and the blade of the oblique scraper acts on the outer circumference of the upper template.
[0010] Furthermore, the scraper includes a concave pull rod passing through the front end of the outer shell. A concave part is welded to the inner end of the concave pull rod. A pair of guide sleeves are welded to both ends of the concave part. A guide rail passes through the guide sleeves. The guide rail is welded to the outer periphery of the rectangular enclosure. The horizontal section of the concave part extends upward to form an upper extension plate. An inclined scraper is provided at the upper end of the upper extension plate. The inclined scraper is inclined and the upper end of the inclined scraper is a blade. The blade of the inclined scraper abuts against the lower wall of the upper template.
[0011] Furthermore, the lower end of the outer shell is formed with a pair of parallel L-shaped plates, with a bottom cover between the L-shaped plates, and the outer end of the bottom cover is bent with an upper convex edge.
[0012] Furthermore, a concave handle is welded onto the upper convex edge.
[0013] The advantages of the above technical solution are:
[0014] This invention utilizes a specially designed oblique scraper. When it moves upward, it acts on the periphery of the upper template, removing residue from its outer circumference. The removed residue is guided by the oblique scraper to the cavity formed by the rectangular surrounding plate, rectangular frame, and inner rectangular surrounding plate for convenient collection, preventing residue from falling onto the lower template. Furthermore, to ensure that the oblique scraper, with its rectangular ring structure, is precisely fitted onto the upper template, when one of the limiting screws acts on the end of the transverse hole, the oblique scraper is positioned directly below the upper template, facilitating the scraping operation.
[0015] This invention utilizes a slanted scraper that, when moved by a concave tie rod, scrapes the lower surface of the lower template. The length of the slanted scraper matches the size of the lower template, and the concave tie rod guides the scraper to ensure effective contact between the scraper and the template, thus improving the scraping effect. Furthermore, it allows for the collection and subsequent discharge of residue. Attached Figure Description
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.
[0017] Figure 1 A three-dimensional structural diagram of the billet press and the upper die head cleaning device after installation is shown.
[0018] Figure 2A three-dimensional structural diagram of the die head cleaning device on the pressing machine is shown.
[0019] Figure 3 A cross-sectional view of the internal scraper is shown.
[0020] Figure 4 A three-dimensional structural diagram of the outer shell is shown.
[0021] Figure 5 A three-dimensional structural diagram of the scraper is shown. Detailed Implementation
[0022] like Figures 1-5 As shown, the billet press includes a machine base 1, on which multiple columns 10 are bolted. An upper plate 11 is installed at the upper end of each column 10. A push rod is movably mounted on the upper plate 11, and an upper template 12 is installed at the lower end of the push rod.
[0023] A die head cleaning device for a billet press includes a pair of parallel side plates 2 mounted on a machine base 1. The side plates 2 have transverse holes 20, and their rear ends extend out of the machine base 1. Considering that the front end of the billet press is the discharge end, to avoid improper discharge, raw material injection, and billet forming, the movable parts of the cleaning device can be pushed backward during these operations. A pair of concave frames 21 are movably mounted between the side plates 2. The lower end of the vertical section of the concave frame 21 is threadedly connected to a limiting screw 22, which passes through the transverse hole 20. A vertical groove 23 is provided on the vertical section of the concave frame 21, and a limiting pin 26 with an end cap passes through the vertical groove 23. The inner end of the limiting pin 26 is provided with a housing 3, and an inner scraper is provided inside the housing 3. A scraper is provided at the lower end of the inner part of the housing 3.
[0024] The upper end of the outer shell 3 is welded with an upper ring 30. The inner scraper includes a rectangular circumference plate 4 welded to the inner periphery of the upper ring 30. The lower end of the rectangular circumference plate 4 is bent into a rectangular frame 40. The inner periphery of the rectangular frame 40 is bent upward into an inner rectangular circumference plate 41. The upper end of the inner rectangular circumference plate 41 is bent inward into a slanted scraper 42. The upper end of the slanted scraper 42 extends inward in a slanted manner. The blade of the slanted scraper 42 acts on the outer periphery of the upper template 12.
[0025] The scraper includes a concave pull rod 43 passing through the front end of the outer casing 3. A concave part 44 is welded to the inner end of the concave pull rod 43. A pair of guide sleeves 46 are welded to both ends of the concave part 44. A guide rail is inserted inside the guide sleeve 46. The guide rail is welded to the outer periphery of the rectangular surrounding plate 4. The guide sleeves and guide rails limit and constrain the movement of the concave part 44 to ensure that the scraping operation of the lower wall of the upper template can be completed completely. The horizontal section of the concave part 44 extends upward to form an upper extension plate. An inclined scraper 47 is provided at the upper end of the upper extension plate. The inclined scraper 47 is inclined and the upper end of the inclined scraper 47 is a blade. The blade of the inclined scraper 47 abuts against the lower wall of the upper template 12. The lower end of the outer shell 3 is formed with a pair of parallel L-shaped plates 31, and a bottom cover 32 is provided between the L-shaped plates 31. The outer end of the bottom cover 32 is bent with an upper protrusion 33, and a concave handle 34 is welded on the upper protrusion 33. The bottom cover 32 can be pulled out through the concave handle 34 to facilitate the discharge of residue.
[0026] In this embodiment, when scraping residue from the outer periphery and lower surface of the upper template 12, the operator pulls the rectangular ring-shaped oblique scraper 42 forward to move it along the transverse hole 20 to directly below the upper template 12. At this time, the limiting screw 22 at the front end abuts against the inner wall of the front end of the transverse hole 20. Then, the oblique scraper 42 is moved upward. As the oblique scraper 42 moves upward, it scrapes off the residue from the outer periphery through its blade, which falls into the pre-set cavity. After the oblique scraper 42 has finished scraping, the blade of the oblique scraper 47 abuts against the lower surface of the upper template 12. The operator then pulls the oblique scraper 47 again through the concave pull rod 43. As the oblique scraper 47 moves, it scrapes off the residue on the lower wall of the upper template 12, which falls onto the bottom cover 32. After scraping is completed, the bottom cover 32 is pulled out, and the residue is discharged.
[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A blanking die head cleaning device for a blanking machine, the blanking machine including a machine base (1), on which multiple columns (10) are bolted, an upper plate (11) is installed at the upper end of the columns (10), a push rod is movably provided on the upper plate (11), and an upper template (12) is installed at the lower end of the push rod, characterized in that, Includes a pair of parallel side plates (2) mounted on the machine base (1), with transverse holes (20) on the side plates (2) and the rear end of the side plates (2) extending out of the machine base (1); A pair of concave frames (21) are provided between the side plates (2). The lower end of the vertical section of the concave frame (21) is connected to a limit screw (22) by a thread. The limit screw (22) is inserted into the transverse hole (20). A vertical groove (23) is provided on the vertical section of the concave frame (21). A limiting pin (26) with an end cap is inserted in the vertical groove (23). A shell (3) is provided on the inner end of the limiting pin (26). An inner scraper is provided inside the shell (3). A scraper is provided at the lower end of the shell (3).
2. The blank press upper die head cleaning device according to claim 1, characterized in that, The upper end of the outer shell (3) is welded with an upper end ring (30); The inner scraper includes a rectangular circumference plate (4) welded to the inner periphery of the upper ring (30), a rectangular frame (40) bent at the lower end of the rectangular circumference plate (40), an inner rectangular circumference plate (41) bent upward at the inner periphery of the rectangular frame (40), and a slanted scraper (42) bent inward at the upper end of the inner rectangular circumference plate (41). The upper end of the slanted scraper (42) extends inward at an inward angle, and the blade of the slanted scraper (42) acts on the outer periphery of the upper template (12).
3. The blank press upper die head cleaning device according to claim 2, characterized in that, The scraper includes a concave pull rod (43) passing through the front end of the outer shell (3). A concave part (44) is welded to the inner end of the concave pull rod (43). A pair of guide sleeves (46) are welded to both ends of the concave part (44). A guide rail is passed through the guide sleeve (46). The guide rail is welded to the outer periphery of the rectangular enclosure (4). The horizontal section of the concave part (44) extends upward to form an upper extension plate. An inclined scraper (47) is provided at the upper end of the upper extension plate. The inclined scraper (47) is inclined and the upper end of the inclined scraper (47) is a blade. The blade of the inclined scraper (47) abuts against the lower wall of the upper template (12).
4. The blank press upper die head cleaning device according to claim 2, characterized in that, The lower end of the outer shell (3) is formed with a pair of parallel L-shaped plates (31), and a bottom cover (32) is provided between the L-shaped plates (31). The outer end of the bottom cover (32) is bent with an upper convex edge (33).
5. The blank press upper die head cleaning device according to claim 4, characterized in that, A concave handle (34) is welded onto the upper convex edge (33).