A kind of fine tungsten rod pressing rubber sleeve cleaning tool

Abstract

The application discloses a cleaning tool for a rubber sleeve for fine tungsten rod pressing, which comprises a scraping assembly, the scraping assembly comprises a cleaning cap, the cleaning cap is a conical frustum structure, the axis of the cleaning cap is parallel to a first direction, the diameter of the top of the cleaning cap is smaller than the diameter of the bottom, and a first through hole is formed through the cleaning cap; a negative pressure assembly is in communication with the first through hole and is used for providing a negative pressure suction force; in use, one end of the rubber sleeve is sleeved on the cleaning cap, then the rubber sleeve is moved along the first direction, so that the cleaning cap moves inside the rubber sleeve until the cleaning cap moves to the other end of the rubber sleeve, at this time, the residues adhered to the inner wall of the rubber sleeve are scraped for the first time and accumulated above the cleaning cap, the accumulated residues can be removed through the negative pressure assembly, then the rubber sleeve is reversely moved, since the cleaning cap is attached to the inner wall of the rubber sleeve, the residues adhered to the inner wall of the rubber sleeve can be scraped by the bottom edge of the cleaning cap during the reverse movement of the rubber sleeve, manpower is saved, efficiency is improved, and the rubber sleeve is not scratched.

Description

Technical Field

[0001] This disclosure relates to the technical field of tungsten product manufacturing equipment, specifically to a cleaning tool for a rubber sleeve used in pressing fine tungsten rods. Background Technology

[0002] Tungsten possesses high hardness, high density, and excellent high-temperature performance. Its high hardness and density are retained after molding, resulting in tungsten products exhibiting excellent wear resistance and durability in applications. Tungsten rod molding uses a rubber mold sleeve, and after cold isostatic pressing, it is demolded and sintered. After demolding, residual material residue may remain on the inner wall of the upper 1 / 5 of the cylindrical rubber mold sleeve. If not properly cleaned, this residue can fall into the powder during reuse, causing defects on the surface or inside of the tungsten rod, thus affecting product quality.

[0003] Currently, there is no special tooling for cleaning the rubber sleeve. It is usually done manually, by repeatedly crushing and kneading to remove the tungsten residue adhering to the inner wall, and then pouring it into the next material tray for collection. The residue is firmly adhered, and it is quite laborious to knead it.

[0004] Therefore, we propose a cleaning tool for pressing fine tungsten rods using a rubber sleeve. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a cleaning tool for the rubber sleeve of fine tungsten rod pressing.

[0006] In a first aspect, this application provides a cleaning fixture for a rubber sleeve used in pressing fine tungsten rods, comprising:

[0007] A scraping assembly extends along a first direction and includes a cleaning cap. The cleaning cap has a frustum structure, and its axis is parallel to the first direction. Its top diameter is smaller than its bottom diameter to facilitate the cleaning cap entering the interior of the rubber sleeve. The bottom edge of the cleaning cap is used to contact the inner wall of the rubber sleeve and scrape off the residue on the inner wall of the rubber sleeve when the cleaning cap is removed from the rubber sleeve. A first through hole is provided on the cleaning cap.

[0008] A negative pressure assembly, which communicates with the first through hole, is used to provide negative pressure suction to remove residue accumulated above the cleaning cap.

[0009] According to the technical solution provided in the embodiments of this application, it also includes a receiving tray, which is fixedly disposed at the bottom of the scraping component. The receiving tray is hollow inside and has an opening at the top for receiving the scraped residue.

[0010] According to the technical solution provided in the embodiments of this application, the scraping assembly further includes a support sleeve rod extending along the first direction. The support sleeve rod includes an inner tube and an outer tube that are coaxially and movably sleeved together. The bottom of the inner tube is fixedly connected to the inner wall of the bottom of the receiving tray, the top of the inner tube is coaxially and rotatably connected to the bottom of the cleaning cap, and communicates with the first through hole. The bottom of the outer tube is rotatably connected to the inner wall of the bottom of the receiving tray, and the top of the outer tube is coaxially and fixedly connected to the bottom of the cleaning cap.

[0011] According to the technical solution provided in the embodiments of this application, the scraping component further includes a driving member, which is disposed at the bottom of the receiving tray. The driving member has a driving end, and the bottom of the outer tube movably passes through the receiving tray and is connected to the driving end in a transmission manner.

[0012] According to the technical solution provided in the embodiments of this application, the negative pressure component includes a negative pressure element disposed at the bottom of the receiving tray. The negative pressure element has a suction end that passes through the receiving tray and communicates with the inner tube.

[0013] According to the technical solution provided in the embodiments of this application, a ventilation component is provided on the cleaning cap to balance the air pressure, so as to facilitate the cleaning cap to be removed from the inside of the rubber sleeve.

[0014] According to the technical solution provided in the embodiments of this application, the ventilation component includes at least two second through holes, which are opened through the cleaning cap along the first direction, and at least two second through holes are symmetrically arranged on the cleaning cap.

[0015] According to the technical solution provided in the embodiments of this application, the bottom of the cleaning cap has a cylindrical section.

[0016] According to the technical solution provided in the embodiments of this application, it also includes a foot pedal, which is fixedly connected to the bottom of one side wall of the receiving tray.

[0017] In summary, this technical solution specifically discloses a cleaning fixture for pressing fine tungsten rods using a rubber sleeve, including a scraping component. The scraping component includes a cleaning cap, which has a frustum-shaped structure with its axis parallel to a first direction and its top diameter smaller than its bottom diameter. A first through hole is formed through the cleaning cap. A negative pressure component is connected to the first through hole to provide negative pressure suction. In use, one end of the rubber sleeve is fitted onto the cleaning cap, and then the rubber sleeve is moved along the first direction, thereby causing the cleaning cap to move inside the rubber sleeve until it reaches the other end of the rubber sleeve. At this point, the cleaning cap is cleaned by the edge of the cleaning cap and... The contact with the inner wall of the rubber sleeve allows for the scraping of residue adhering to the inner wall. The residue accumulates above the cleaning cap, and the negative pressure component sucks it out. Then, the rubber sleeve moves in the opposite direction. Because the cleaning cap and the inner wall of the rubber sleeve are in close contact, the bottom edge of the cleaning cap scrapes away the residue adhering to the inner wall of the rubber sleeve during the reverse movement of the rubber sleeve, until the rubber sleeve detaches from the cleaning cap. In this way, the cleaning cap can scrape away the residue. Compared with the traditional manual kneading method, the scraping component saves manpower, improves efficiency, and does not scratch the rubber sleeve. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of a cleaning fixture for pressing fine tungsten rods using a rubber sleeve.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 To clean up the sectional view of the cap.

[0022] The following are labeled in the diagram: 1. Cleaning cap; 2. Receiving tray; 3. Support sleeve; 4. Second through hole; 5. Cylindrical section; 6. Foot pedal. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Example 1

[0026] Please refer to Figures 1 to 3As shown, a cleaning fixture for pressing fine tungsten rods with a rubber sleeve includes:

[0027] The scraping assembly includes a cleaning cap 1, which has a frustum-shaped structure. The axis of the cleaning cap 1 is parallel to a first direction, and the diameter of the top of the cleaning cap 1 is smaller than its bottom diameter. This facilitates the fitting of a rubber sleeve onto the cleaning cap and allows the cleaning cap 1 to move within the rubber sleeve. The first direction is... Figure 3 In the vertical direction;

[0028] Furthermore, the rubber sleeve is made of rubber and has a certain degree of elasticity, so the inner wall of the rubber sleeve can fit tightly against the cleaning cap 1;

[0029] It should be noted that if the diameter of the rubber sleeve is D, then the bottom diameter of the cleaning cap 1 is D+1mm. Thus, when the rubber sleeve is put on the cleaning cap 1, the bottom of the cleaning cap 1 and the inner wall of the rubber sleeve can be fitted together without leaving any gaps, so it is convenient to scrape off the residue stuck to the inner wall of the rubber sleeve.

[0030] Furthermore, the scraping assembly also includes a support sleeve 3, which extends along a first direction. The support sleeve 3 includes an inner tube and an outer tube that are coaxially and movably connected. The top of the inner tube and the bottom of the cleaning cap 1 are rotatably connected, and the top of the outer tube and the bottom of the cleaning cap 1 are coaxially and fixedly connected. A first through hole (not shown in the figure) is opened through the middle of the cleaning cap 1, and the inner tube and the first through hole are connected.

[0031] It also includes a receiving tray 2, which is hollow inside and open at the top. The support sleeve 3 is set inside the receiving tray 2, and the bottom of the inner tube is fixedly connected to the bottom inner wall of the receiving tray 2, while the bottom of the outer tube is rotatably connected to the bottom inner wall of the receiving tray 2.

[0032] Furthermore, the scraping assembly also includes a drive unit, which is disposed at the bottom of the receiving tray 2. The drive unit has a drive end, and the bottom of the outer tube movably passes through the receiving tray 2 and is connected to the drive end for transmission.

[0033] Optionally, the scraping assembly has two sets, namely, two support sleeves 3 and two corresponding cleaning caps 1;

[0034] Therefore, by inserting one end of the rubber sleeve onto the top of the cleaning cap 1, and moving the inner wall of the rubber sleeve against the cleaning cap 1 downwards, the rubber sleeve can be placed on the cleaning cap 1. By activating the drive unit, the outer tube and the cleaning cap 1 can be rotated, enabling rotary feeding and facilitating the movement of the cleaning cap 1 within the rubber sleeve. When the rubber sleeve is placed on the cleaning cap 1, and during the process of the cleaning cap 1 moving to the other end of the rubber sleeve, the edge of the cleaning cap 1 contacts the rubber sleeve, which can scrape off the residue adhering to the inner wall of the rubber sleeve in one go. The residue will accumulate on top of the cleaning cap 2.

[0035] Furthermore, it also includes a negative pressure component, which includes a negative pressure element disposed at the bottom of the receiving tray 2. The negative pressure element has a suction end that passes through the receiving tray 2 and communicates with the inner tube. When residue accumulates above the cleaning cap 2, by activating the negative pressure component, the suction end generates negative pressure suction. The negative pressure suction is transmitted to the first through hole through the inner tube, so that the accumulated residue can be sucked out through the first through hole and the inner tube.

[0036] Then, the rubber sleeve is moved upward. Since the inner wall of the rubber sleeve is in contact with the cleaning cap 1, the bottom of the cleaning cap 1 can scrape off the residue stuck to the inner wall of the rubber sleeve. When the rubber sleeve is removed from the cleaning cap 1, the scraped residue can fall into the receiving tray 2, thereby completing the collection of residue and avoiding residue splashing. Moreover, the two sets of scraping components can clean the two rubber sleeves at the same time, improving work efficiency and saving working time.

[0037] It should be noted that the bottom of the cleaning cap 1 has a cylindrical section 5. The plane containing the tangent of the side wall of the cylindrical section 5 and the plane containing the bottom of the cylindrical section 5 are at a right angle. Therefore, as the rubber sleeve moves upward, the bottom edge of the cylindrical section 5 can scrape off the residue adhering to the inner wall of the rubber sleeve.

[0038] It should be noted that the cleaning cap 1 has no sharp protrusions, which can prevent scratching the rubber sleeve.

[0039] It should be noted that when the rubber sleeve is put on the cleaning cap 1 and the rubber sleeve is moved down, the cleaning cap 1 moves along the inside of the rubber sleeve. The side wall of the cleaning cap 1 can contact the inside of the rubber sleeve and scrape off the residue on the inner wall of the rubber sleeve. The residue accumulates on the cleaning cap 1. When the rubber sleeve moves in the opposite direction, the bottom edge of the cleaning cap 1 scrapes off the residue stuck to the inner wall of the rubber sleeve again. When the rubber sleeve and the cleaning cap 1 are separated, the accumulated residue and the residue scraped off by the bottom edge of the cleaning cap 1 can fall into the receiving tray 2.

[0040] A ventilation component is provided on the cleaning cap 1 to balance the air pressure, making it easier for the cleaning cap 1 to be removed from the inside of the rubber sleeve;

[0041] Specifically, the ventilation assembly includes two second through holes 4, which are symmetrically opened on the cleaning cap 1. The axis of the second through holes 4 extends along the first direction and penetrates the cleaning cap 1 along the first direction, so as to balance the air pressure at the top and bottom of the cleaning cap 1 when the cleaning cap 1 is inside the rubber sleeve, and facilitate the movement of the cleaning cap 1 inside the rubber sleeve.

[0042] It also includes a foot pedal 6, which is fixedly connected to the bottom of one side wall of the receiving tray 2. Optionally, the foot pedal 6 can also be fixedly connected to the bottom of the receiving tray 2 to provide standing space for workers, provide pressure when scraping residue from the inner wall of the rubber sleeve, and prevent the receiving tray 2 from tipping over.

[0043] Working principle: During use, the operator stands on the foot pedal 6 and applies pressure to the receiving tray 2 using their own weight. Since the receiving tray 2 and the foot pedal 6 are fixedly connected, the receiving tray 2 can be restricted. Then, the operator holds the rubber sleeve and puts one end of the rubber sleeve on the cleaning cap 1. The cleaning cap 1 is rotated by starting the drive component. Then, the rubber sleeve is moved to allow the cleaning cap 1 to go deeper into the rubber sleeve until it reaches the other end. During this process, the side wall of the cleaning cap 1 contacts the inner wall of the rubber sleeve and scrapes off the residue adhering to the inner wall of the rubber sleeve. The residue accumulates on the cleaning cap 1. At this time, the negative pressure component is activated, and the suction end generates negative pressure suction to remove the accumulated residue. Since the cleaning cap 1 has a second through hole 4, when the negative pressure component is activated, external gas can enter the inside of the rubber sleeve through the second through hole 4 and then be sucked out through the first through hole. During this process, the airflow can carry the residue into the first through hole to achieve the purpose of removing the residue. The output power of the negative pressure component can be adjusted to ensure that there is a negative pressure between the top of the cleaning cap 1 and the rubber sleeve.

[0044] Then, the negative pressure component is turned off, causing the rubber sleeve to move in the opposite direction. The air pressure at the top and bottom of the cleaning cap 1 is balanced through the second through hole 4, which facilitates the movement of the rubber sleeve. At this time, the bottom edge of the cleaning cap 1 is in contact with the inner wall of the rubber sleeve. As the rubber sleeve moves in the opposite direction, the bottom of the cleaning cap 1 continuously scrapes away the residue adhering to the inner wall of the rubber sleeve until the rubber sleeve detaches from the cleaning cap 1. The accumulated residue and the residue scraped away by the bottom edge of the cleaning cap 1 fall into the receiving tray 2. This can scrape away the residue on the inner wall of the rubber sleeve. The residue is collected by the receiving tray 2. When the receiving tray 2 is filled with residue, the next receiving tray 2 can be replaced or the residue can be poured out to clean the receiving tray 2.

[0045] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A cleaning fixture for pressing fine tungsten rods using a rubber sleeve, characterized in that, include: A scraping assembly extends along a first direction and includes a cleaning cap (1). The cleaning cap (1) has a frustum structure and its axis is parallel to the first direction. Its top diameter is smaller than its bottom diameter, which facilitates the cleaning cap (1) entering the interior of the rubber sleeve. The bottom edge of the cleaning cap (1) is used to contact the inner wall of the rubber sleeve and scrape off the residue on the inner wall of the rubber sleeve when the cleaning cap (1) is removed from the rubber sleeve. A first through hole is provided on the cleaning cap (1). A negative pressure assembly, which is connected to the first through hole, is used to provide negative pressure suction to remove residues accumulated above the cleaning cap (1).

2. The cleaning fixture for pressing fine tungsten rods according to claim 1, characterized in that, It also includes a receiving tray (2), which is fixedly installed at the bottom of the scraping assembly. The receiving tray (2) is hollow inside and open at the top to receive the scraped residue.

3. The cleaning fixture for pressing fine tungsten rods according to claim 2, characterized in that, The scraping assembly also includes a support sleeve (3), which extends along the first direction. The support sleeve (3) includes an inner tube and an outer tube that are coaxially and movably connected. The bottom of the inner tube is fixedly connected to the bottom inner wall of the receiving tray (2). The top of the inner tube is coaxially and rotatably connected to the bottom of the cleaning cap (1) and communicates with the first through hole. The bottom of the outer tube is rotatably connected to the bottom inner wall of the receiving tray (2). The top of the outer tube is coaxially and fixedly connected to the bottom of the cleaning cap (1).

4. The cleaning fixture for pressing fine tungsten rods according to claim 3, characterized in that, The scraping assembly also includes a driving component, which is disposed at the bottom of the receiving tray (2). The driving component has a driving end, and the bottom of the outer tube movably passes through the receiving tray (2) and is connected to the driving end in a transmission manner.

5. The cleaning fixture for pressing fine tungsten rods according to claim 3, characterized in that, The negative pressure assembly includes a negative pressure component, which is disposed at the bottom of the receiving tray (2). The negative pressure component has a suction end that passes through the receiving tray (2) and communicates with the inner tube.

6. The cleaning fixture for pressing fine tungsten rods according to claim 3, characterized in that, The cleaning cap (1) is provided with a ventilation component to balance the air pressure and facilitate the cleaning cap (1) to be removed from the inside of the rubber sleeve.

7. The cleaning fixture for pressing fine tungsten rods according to claim 6, characterized in that, The ventilation assembly includes at least two second through holes (4), which are opened through the cleaning cap (1) along the first direction, and at least two second through holes (4) are symmetrically arranged on the cleaning cap (1).

8. The cleaning fixture for pressing fine tungsten rods according to claim 1, characterized in that, The bottom of the cleaning cap (1) has a cylindrical section (5).

9. The cleaning fixture for pressing fine tungsten rods according to claim 2, characterized in that, It also includes a foot pedal (6), which is fixedly connected to the bottom of one side wall of the receiving tray (2).

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