A graphite spraying device for cemented carbide production

Abstract

This utility model discloses a graphite spraying device for cemented carbide production, specifically relating to the field of cemented carbide production technology. It includes a base, a feeding hopper fixedly connected to the upper right side of the base, a spraying mechanism fixedly connected to the middle of the feeding hopper, an observation mechanism fixedly connected to the upper part of the spraying mechanism, a collection mechanism placed on the upper end of the base, a receiving box placed on the left end of the base, and a graphite liquid tank installed at the front end of the base. The graphite spraying device for cemented carbide production described in this utility model is equipped with a spraying mechanism, three pipes, and several nozzles distributed on the pipes. The nozzle on the uppermost pipe is tilted to the left, enabling spraying of the outer surface of the cemented carbide and providing thrust when the workpiece is stuck. The strip track has a certain tilt angle, allowing the cemented carbide to roll naturally from right to left, and several arc-shaped blocks on the horizontal part of the track can slow down and buffer the workpiece, effectively preventing uneven spraying caused by excessively fast workpiece rolling.

Description

Technical Field

[0001] This utility model relates to the field of cemented carbide production technology, and in particular to a graphite spraying device for cemented carbide production. Background Technology

[0002] Due to its high hardness, wear resistance and corrosion resistance, cemented carbide is widely used in cutting tools, mining machinery, mold manufacturing and other fields. In the production process of cemented carbide, graphite spraying is a key process. Its purpose is to uniformly spray graphite liquid onto the surface of cemented carbide billet to improve the lubrication performance of the billet, prevent adhesion during sintering, and improve the accuracy and surface quality of subsequent processing.

[0003] Chinese Patent Publication No. CN222219982U discloses a graphite spraying device for cemented carbide production, which relates to the field of cemented carbide production technology. The device includes a machine housing, a feeding hopper at the top of the machine housing, a conveying structure inside the machine housing, a horizontal conveying mechanism for rolling the workpiece in the horizontal direction, a second spray gun above the horizontal conveying mechanism, first spray guns symmetrically arranged on both sides of the horizontal conveying mechanism, and a recovery box for recovering graphite liquid below the horizontal conveying mechanism.

[0004] The aforementioned patent documents still have the following defects in practice:

[0005] The structural design and functions are simple. The spraying mechanism relies solely on a horizontal conveyor and a fixed spray gun, lacking workpiece conveying speed control and multi-functional design to deal with jams, which may affect the uniformity of spraying. Utility Model Content

[0006] The main purpose of this invention is to provide a graphite spraying device for cemented carbide production, which can effectively solve the problem of lack of workpiece transmission speed control and multi-functional design to deal with jamming, which may affect the uniformity of spraying.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A graphite spraying device for cemented carbide production includes a base, a feeding hopper fixedly connected to the upper right side of the base, a spraying mechanism fixedly connected to the middle of the feeding hopper, an observation mechanism fixedly connected to the upper part of the spraying mechanism, a collection mechanism placed on the upper end of the base, a receiving box placed on the left end of the base, and a graphite liquid tank installed at the front end of the base.

[0009] Preferably, the observation mechanism includes a glass cover, the left and right sides of the inner side of the glass cover are fixedly connected to the spraying mechanism, the upper part of the glass cover is provided with an arc-shaped groove, the arc-shaped groove is slidably connected to a handle, the outer surface of the handle is fixedly connected to two scrapers, and the middle part of the outer surface of the handle is fixedly connected to an arc plate.

[0010] Preferably, the arc-shaped plate is located on the outer surface of the glass cover and is in contact with the outer surface of the glass cover, while the scraper is in contact with the inner surface of the glass cover.

[0011] Preferably, the spraying mechanism includes a bracket, the lower end of which is fixedly connected to the upper end of the base, three pipes are fixedly connected to the right end of the bracket, several nozzles are fixedly connected to the side of each of the three pipes closest to each other, a fixing plate is fixedly connected to the right end of the two pipes located at the front and rear, and a feed pipe is fixedly connected to the right side of the outer surface of each of the three pipes.

[0012] Preferably, the spraying mechanism includes a support plate, the lower end of which is fixedly connected to the upper end of the base, a strip track is fixedly connected to the upper end of the support plate, a strip groove is provided at the lower end of the strip track, and several arc-shaped blocks are fixedly connected to the upper end of the horizontal part of the strip track.

[0013] Preferably, the collection mechanism includes a discharge pipe, the front end of which is fixedly connected to the rear end of the graphite liquid tank, and a collection frame is fixedly connected to the end of the discharge pipe away from the graphite liquid tank, with a discharge port at the bottom of the collection frame.

[0014] Preferably, the discharge port corresponds to the inner diameter of the discharge pipe, and the discharge port is located at the connection between the discharge port and the discharge pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this embodiment, a spraying mechanism is set up with three pipes and several nozzles distributed on the pipes. The nozzle of the uppermost pipe is tilted to the left to achieve spraying on the outer surface of the cemented carbide and provide thrust when the workpiece is stuck. The strip track has a certain tilt angle, which allows the cemented carbide to roll naturally from right to left. Several arc-shaped blocks in the horizontal part of the track can slow down and buffer the workpiece, effectively preventing uneven spraying caused by the workpiece rolling too fast, ensuring the uniformity of spraying, and improving the stability of workpiece transmission.

[0017] 2. In this embodiment, an observation mechanism is set up during implementation. The two ends of the glass cover are fixed to the uppermost pipe by fixing rods. This not only prevents the splashing of graphite liquid during the spraying process and keeps the environment clean, but also makes it convenient for staff to observe the hard alloy being sprayed, facilitating real-time monitoring of the spraying situation. When a lot of graphite liquid adheres to the inside of the glass cover, the staff can grab the handle and drive the scraper to scrape off the graphite liquid on the inner surface of the glass cover. The scraped graphite liquid falls into the collection mechanism. The operation is simple and convenient for cleaning and maintenance of the observation mechanism, ensuring a clear field of view. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the spraying mechanism structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the observation mechanism of this utility model.

[0022] Figure 5 This is a schematic diagram of the collection mechanism structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the spraying mechanism of this utility model.

[0024] In the diagram: 1. Base; 2. Receiving box; 3. Observation mechanism; 31. Glass cover; 32. Arc groove; 33. Handle; 34. Scraper; 35. Arc plate; 4. Graphite liquid tank; 5. Feed hopper; 6. Spraying mechanism; 61. Bracket; 62. Pipe; 63. Spray nozzle; 64. Fixing plate; 65. Feed pipe; 66. Strip track; 67. Strip groove; 68. Arc block; 69. Support plate; 7. Collection mechanism; 71. Collection frame; 72. Discharge port; 73. Discharge pipe. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Example 1, as Figure 1 As shown, a graphite spraying device for cemented carbide production includes a base 1, a feeding hopper 5 fixedly connected to the upper right side of the base 1, a spraying mechanism 6 fixedly connected to the middle of the feeding hopper 5, an observation mechanism 3 fixedly connected to the upper part of the spraying mechanism 6, a collection mechanism 7 placed at the upper end of the base 1, a receiving box 2 placed at the left end of the base 1, and a graphite liquid tank 4 installed at the front end of the base 1.

[0027] In this embodiment, during implementation, the worker places the cemented carbide on the arc-shaped feeding plate of the feeding hopper 5. The cemented carbide passes through the feeding channel of the feeding hopper 5 one by one along the inclined arc-shaped feeding plate and falls onto the spraying mechanism 6. The spraying mechanism 6 sprays the graphite liquid in the graphite liquid tank 4 onto the surface of the cemented carbide. Excess graphite liquid falls onto the collection mechanism 7. The sprayed cemented carbide rolls into the collection box 2. The observation mechanism 3 blocks the splashed graphite liquid to ensure the cleanliness of the environment.

[0028] For spraying of cemented carbide, see [link / reference]. Figures 3-6The spraying mechanism 6 includes a bracket 61. The lower end of the bracket 61 is fixedly connected to the upper end of the base 1. Three pipes 62 are fixedly connected to the right end of the bracket 61. Several nozzles 63 are fixedly connected to the side of the three pipes 62 that are close to each other. The right ends of the two pipes 62 located at the front and rear are fixedly connected to a fixing plate 64. The right side of the outer surface of the three pipes 62 is fixedly connected to a feed pipe 65.

[0029] The spraying mechanism 6 includes a support plate 69, the lower end of which is fixedly connected to the upper end of the base 1. A strip track 66 is fixedly connected to the upper end of the support plate 69. A strip groove 67 is opened at the lower end of the strip track 66. Several arc blocks 68 are fixedly connected to the upper end of the horizontal part of the strip track 66.

[0030] During implementation, the feed pipe 65 draws graphite liquid from the graphite liquid tank 4 into the pipe 62 via a liquid pump. The graphite liquid is then sprayed out through the nozzle 63 to coat the cemented carbide. The nozzle 63 on the uppermost pipe 62 is tilted to the left to coat the outside of the cemented carbide. It can also provide thrust when the cemented carbide gets stuck. The pipe 62 is a rigid pipe. The strip track 66 restricts the movement direction of the cemented carbide and has a certain tilt angle so that the cemented carbide rolls naturally from the right end to the left end and falls into the collection box 2. The arc block 68 acts as a speed reduction buffer for the cemented carbide to prevent the cemented carbide from rolling too fast and causing uneven coating. The strip groove 67 allows excess graphite liquid falling on the strip track 66 to fall into the collection mechanism 7 through the strip groove 67.

[0031] Example 2: To prevent the ejected graphite liquid from splashing, see [reference needed]. Figures 2-4 The observation mechanism 3 includes a glass cover 31. The left and right sides of the inner side of the glass cover 31 are fixedly connected to the spraying mechanism 6. An arc-shaped groove 32 is provided on the upper part of the glass cover 31. A handle 33 is slidably connected to the arc-shaped groove 32. Two scrapers 34 are fixedly connected to the front of the outer surface of the handle 33. An arc plate 35 is fixedly connected to the middle of the outer surface of the handle 33. The arc plate 35 is located on the outer surface of the glass cover 31 and fits against the outer surface of the glass cover 31. The scrapers 34 are in contact with the inner surface of the glass cover 31.

[0032] During implementation, the two ends of the glass cover 31 are fixed to the uppermost pipe 62 by fixing rods. This can prevent graphite liquid from splashing and also allow for observation of the hard alloy being sprayed. When there is too much graphite liquid inside the glass cover 31, the staff grabs the handle 33 and drives the scraper 34 to scrape off the graphite liquid on the inner surface of the glass cover 31. The scraped graphite liquid falls into the collection mechanism 7, and the arc plate 35 plays a limiting role.

[0033] For the collection and recycling of graphite liquid that was not sprayed onto cemented carbide, see [link / reference]. Figure 5The collection mechanism 7 includes a discharge pipe 73. The front end of the discharge pipe 73 is fixedly connected to the rear end of the graphite liquid tank 4. A collection frame 71 is fixedly connected to the end of the discharge pipe 73 away from the graphite liquid tank 4. A discharge port 72 is opened at the lower part of the collection frame 71. The discharge port 72 corresponds to the inner diameter of the discharge pipe 73. The discharge port 72 is opened at the connection between the discharge port 72 and the discharge pipe 73.

[0034] During implementation, once the amount of graphite liquid falling into the collection frame 71 reaches a certain level, the liquid pump between the discharge pipe 73 and the graphite liquid tank 4 is activated, allowing the graphite liquid in the collection frame 71 to flow into the graphite liquid tank 4 through the discharge pipe 73, thereby improving the utilization rate of graphite liquid and reducing waste.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A graphite spraying device for cemented carbide production, comprising a base (1), characterized in that: A feeding hopper (5) is fixedly connected to the upper right side of the base (1), a spraying mechanism (6) is fixedly connected to the middle of the feeding hopper (5), an observation mechanism (3) is fixedly connected to the upper part of the spraying mechanism (6), a collection mechanism (7) is placed on the upper end of the base (1), a receiving box (2) is placed on the left end of the base (1), and a graphite liquid tank (4) is installed at the front end of the base (1).

2. The graphite spraying device for cemented carbide production according to claim 1, characterized in that: The observation mechanism (3) includes a glass cover (31), the left and right sides of the inner side of the glass cover (31) are fixedly connected to the spraying mechanism (6), the upper part of the glass cover (31) is provided with an arc groove (32), the arc groove (32) is slidably connected to a handle (33), the front of the outer surface of the handle (33) is fixedly connected to two scrapers (34), and the middle of the outer surface of the handle (33) is fixedly connected to an arc plate (35).

3. The graphite spraying device for cemented carbide production according to claim 2, characterized in that: The arc-shaped plate (35) is located on the outer surface of the glass cover (31) and is in contact with the outer surface of the glass cover (31), while the scraper (34) is in contact with the inner surface of the glass cover (31).

4. The graphite spraying device for cemented carbide production according to claim 1, characterized in that: The spraying mechanism (6) includes a bracket (61), the lower end of which is fixedly connected to the upper end of the base (1). Three pipes (62) are fixedly connected to the right end of the bracket (61). Several nozzles (63) are fixedly connected to the side of each of the three pipes (62) that are close to each other. Fixing plates (64) are fixedly connected to the right ends of the two pipes (62) located at the front and rear. Feed pipes (65) are fixedly connected to the right side of the outer surface of each of the three pipes (62).

5. A graphite spraying apparatus for cemented carbide production according to claim 4, characterized in that: The spraying mechanism (6) includes a support plate (69), the lower end of which is fixedly connected to the upper end of the base (1), a strip track (66) is fixedly connected to the upper end of the support plate (69), a strip groove (67) is opened at the lower end of the strip track (66), and several arc blocks (68) are fixedly connected to the upper end of the horizontal part of the strip track (66).

6. The graphite spraying apparatus for cemented carbide production according to claim 1, characterized in that: The collection mechanism (7) includes a discharge pipe (73), the front end of which is fixedly connected to the rear end of the graphite liquid tank (4), and a collection frame (71) is fixedly connected to the end of the discharge pipe (73) away from the graphite liquid tank (4), and a discharge port (72) is provided at the lower part of the collection frame (71).

7. A graphite spraying apparatus for cemented carbide production according to claim 6, characterized in that: The discharge port (72) corresponds to the inner diameter of the discharge pipe (73), and the discharge port (72) is opened at the connection between the discharge port (72) and the discharge pipe (73).

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