Welding rod press-coating device

Abstract

The utility model relates to a welding rod press-coating device, which belongs to the technical field of welding rod processing and comprises a base, a press-coating mechanism is arranged on the base and comprises a press-coating die and a first electric telescopic rod which are fixedly mounted on the surface of the base, and a stock bin is fixedly mounted at the top of the first electric telescopic rod. A discharging pipe communicated with the stock bin is fixedly installed at the bottom of the stock bin, a first electromagnetic valve is fixedly installed at the bottom of the discharging pipe, a feeding pipe is fixedly installed at the bottom of the first electromagnetic valve, and a second electromagnetic valve is fixedly installed on the surface of the feeding pipe. According to the welding rod press-coating device, the air compressor is arranged, high-pressure gas can be injected into the press-coating mold after materials enter the press-coating mold, so that the materials can make close contact with the welding rod, the electric heating wire is arranged in the press-coating mold, the press-coating mold can be heated after press-coating is completed, and the materials can be rapidly dried; and the efficiency and the quality of welding rod press-coating are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of welding electrode processing technology, specifically a welding electrode coating device. Background Technology

[0002] Electrode coating refers to the process of applying pre-prepared electrode coating onto a processed electrode core to form the electrode. It is one of the most critical steps in the production of welding electrodes and has a significant impact on the quality of the electrodes. Currently, the industry uses the coating method for production, which requires the use of a powder coating machine.

[0003] Announcement No. CN220444302U describes a welding electrode pressure coating device, comprising a support, an oven, a pressure coating mold, a lifting plate, a booster, and a cylinder. The support is arranged from bottom to top with the oven, the pressure coating mold, and the cylinder. A lifting plate is located at the lower end of the cylinder's telescopic rod. The lifting plate has several mounting holes for inserting welding electrodes, allowing for simultaneous processing of multiple electrodes and improving production efficiency. Driven by the cylinder, the lifting plate passes downwards through the inlet on the pressure coating mold and is extruded through the extrusion die. Powder continuously enters the powder chamber from the injection port and is simultaneously squeezed into the conical cavity. Under pressure, the powder adheres to the surface of the welding electrode and is squeezed out at the extrusion die, forming a powder-coated welding electrode. After formation, the welding electrode is vertically conveyed downwards and inserted through the insertion hole at the top of the oven. When the booster is pushed, the welding electrode falls into the corresponding welding electrode holder and is dried by a heater, forming a welding electrode with a stable powder coating on its surface.

[0004] The aforementioned patents have addressed the shortcomings of existing technologies, such as excessive eccentricity of the flux coating during electrode processing, uneven flux coating thickness, loose flux coating, rough surface, and low production efficiency. This application provides another implementation scheme to address the problems raised in the aforementioned patents. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a welding electrode coating device, which has the advantage of high processing efficiency and solves the problems of excessive eccentricity of the coating, uneven coating thickness, loose coating, rough surface, and low production efficiency in the processing of welding electrodes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding electrode pressure coating device, comprising a base, wherein a pressure coating mechanism is provided on the base;

[0007] The pressure coating mechanism includes a pressure coating mold fixedly installed on the surface of the base and a first electric telescopic rod. A material hopper is fixedly installed on the top of the first electric telescopic rod, and a discharge pipe connected to the material hopper is fixedly installed on the bottom of the material hopper. A first solenoid valve is fixedly installed on the bottom of the discharge pipe, and a feeding pipe is fixedly installed on the bottom of the first solenoid valve. A second solenoid valve is fixedly installed on the surface of the feeding pipe. An air compressor is fixedly installed on the surface of the material hopper, and a horizontal pipe is fixedly installed at the air outlet of the air compressor. A connecting hose is fixedly installed on the surface of the horizontal pipe and is connected to the second solenoid valve. An electric heating wire is fixedly installed inside the pressure coating mold.

[0008] Furthermore, each of the opposite surfaces of the hopper is fixedly equipped with a feed inlet, which is connected to the hopper.

[0009] The advantage of adopting the above-mentioned further solution is that it facilitates the injection of materials into the silo.

[0010] Furthermore, a mounting frame is fixedly installed on the top of the hopper, and a hydraulic cylinder penetrating into the hopper is fixedly installed on the surface of the mounting frame. A pressure plate located inside the hopper is fixedly installed at the bottom of the hydraulic cylinder.

[0011] The beneficial effects of adopting the above-mentioned further solution are: by setting up a hydraulic cylinder and a pressure plate, it is convenient to press the material into the discharge pipe and to send the material into the feeding pipe.

[0012] Furthermore, a sealing ring is fixedly installed on the surface of the feeding pipe, and the sealing ring is adapted to the top of the pressure coating mold.

[0013] The advantage of adopting the above-mentioned further solution is that it facilitates sealing the connection between the feed pipe and the pressure coating mold.

[0014] Furthermore, a welding rod fixing seat is fixedly installed inside the pressure coating mold, and a fixing groove is opened inside the welding rod fixing seat. An installation groove is opened on the surface of the base, and a miniature electric telescopic rod extending into the fixing groove is fixedly installed inside the installation groove. A top plate located in the fixing groove is fixedly installed at one end of the miniature electric telescopic rod.

[0015] The beneficial effects of adopting the above-mentioned further solution are: by setting a fixing groove, it is easy to fix the welding rod in the pressure coating mold, and by setting a miniature electric telescopic rod and a top plate, it is easy to push the welding rod out of the fixing groove.

[0016] Furthermore, a transparent observation window is fixedly installed on the surface of the pressure coating mold.

[0017] The beneficial effect of adopting the above-mentioned further solution is that by setting a transparent observation window, it is convenient to observe the bonding state between the welding rod and the material inside the pressure coating mold.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0019] This electrode coating device, equipped with an air compressor, can inject high-pressure gas into the coating mold after the material enters, ensuring close contact between the material and the electrode. Furthermore, by incorporating a heating wire inside the coating mold, it can heat the mold after coating, allowing the material to dry quickly. This significantly improves the efficiency and quality of electrode coating, solving problems in existing technologies such as excessive coating eccentricity, uneven coating thickness, loose coating, rough surface, and low production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0022] Figure 3 The structure of this utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the pressure coating mold of this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the pressure coating mold of this utility model.

[0025] In the diagram: 1. Base; 2. Coating mold; 3. First electric telescopic rod; 4. Material hopper; 5. Discharge pipe; 6. First solenoid valve; 7. Feeding pipe; 8. Second solenoid valve; 9. Air compressor; 10. Horizontal pipe; 11. Connecting hose; 12. Inlet; 13. Mounting bracket; 14. Hydraulic cylinder; 15. Pressure plate; 16. Sealing ring; 17. Welding rod fixing seat; 18. Fixing groove; 19. Mounting groove; 20. Miniature electric telescopic rod; 21. Top plate; 22. Transparent observation window; 23. Heating wire. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1 to 5This embodiment of a welding rod pressure coating device includes a base 1, on which a pressure coating mechanism is provided. The pressure coating mechanism includes a pressure coating mold 2 fixedly installed on the surface of the base 1 and a first electric telescopic rod 3. A material hopper 4 is fixedly installed on the top of the first electric telescopic rod 3. A feed inlet 12 is fixedly installed on the opposite side surface of the material hopper 4, and the feed inlet 12 is connected to the material hopper 4 to facilitate the injection of material into the material hopper 4. A discharge pipe 5 connected to the material hopper 4 is fixedly installed at the bottom of the material hopper 4, and a first solenoid valve 6 is fixedly installed at the bottom of the discharge pipe 5. A feeding pipe 7 is fixedly installed at the bottom of the 6th section. A second solenoid valve 8 is fixedly installed on the surface of the feeding pipe 7. An air compressor 9 is fixedly installed on the surface of the hopper 4. A horizontal pipe 10 is fixedly installed at the air outlet of the air compressor 9. A connecting hose 11 is fixedly installed on the surface of the horizontal pipe 10. The connecting hose 11 is connected to the second solenoid valve 8. A sealing ring 16 is fixedly installed on the surface of the feeding pipe 7. The sealing ring 16 is adapted to the top of the pressure coating mold 2 to facilitate sealing the connection between the feeding pipe 7 and the pressure coating mold 2. An electric heating wire 23 is fixedly installed inside the pressure coating mold 2.

[0028] A mounting frame 13 is fixedly installed on the top of the hopper 4. A hydraulic cylinder 14 that penetrates into the hopper 4 is fixedly installed on the surface of the mounting frame 13. A pressure plate 15 located in the hopper 4 is fixedly installed at the bottom of the hydraulic cylinder 14. By setting the hydraulic cylinder 14 and the pressure plate 15, it is easy to press the material into the discharge pipe 5 and to send the material into the feeding pipe 7.

[0029] A welding rod holder 17 is fixedly installed inside the pressure coating mold 2. The welding rod holder 17 has a fixing groove 18 inside. The base 1 has an installation groove 19 on its surface. A miniature electric telescopic rod 20 extending into the fixing groove 18 is fixedly installed inside the installation groove 19. A top plate 21 located in the fixing groove 18 is fixedly installed at one end of the miniature electric telescopic rod 20. The fixing groove 18 is used to fix the welding rod to the pressure coating mold 2. The miniature electric telescopic rod 20 and the top plate 21 are used to push the welding rod out of the fixing groove 18. A transparent observation window 22 is fixedly installed on the surface of the pressure coating mold 2. The transparent observation window 22 is used to observe the bonding state between the welding rod and the material inside the pressure coating mold 2.

[0030] It should be noted that in this embodiment, the side surface of the pressure plate 15 is in close contact with the inner surface of the hopper 4.

[0031] The working principle of the above embodiments is as follows:

[0032] In use, first insert the welding rod into the fixed groove 18 inside the pressure coating mold 2, then inject the material into the hopper 4 through the feed port 12. The first electric telescopic rod 3 drives the hopper 4 to move downward, so that the bottom of the feeding pipe 7 is inserted into the pressure coating mold 2, and the sealing ring 16 contacts the top of the pressure coating mold 2. Open the first solenoid valve 6 and close the second solenoid valve 8. The hydraulic cylinder 14 drives the pressure plate 15 to move downward in the hopper 4, pressing the material in the hopper 4 into the discharge pipe 5. The material in the discharge pipe 5 enters the pressure coating mold 2 through the feeding pipe 7 and wraps the welding rod. The material can be observed through the transparent observation window 22. After checking the amount of material inside the pressure coating mold 2 and finding that it is appropriate, close the hydraulic cylinder 14 and the first solenoid valve 6, start the air compressor 9 and open the second solenoid valve 8, and inject high-pressure gas into the pressure coating mold 2 through the air compressor 9 and the connecting hose 11. Use the high-pressure gas to compact the material, and then heat the pressure coating mold 2 through the heating wire 23 so that the material inside the pressure coating mold 2 can dry quickly. After completion, separate the feeding pipe 7 from the pressure coating mold 2, and then use the micro electric telescopic rod 20 to drive the top plate 21 to move upward in the fixed groove 18 to push out the processed welding rod.

[0033] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0034] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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 welding rod press-coating device comprising a base (1), characterised in that: The base (1) is provided with a pressure coating mechanism; The pressure coating mechanism comprises a pressure coating mold (2) and a first electric telescopic rod (3) fixedly installed on the surface of the base (1), a material bin (4) is fixedly installed on the top of the first electric telescopic rod (3), a discharge pipe (5) in communication with the material bin (4) is fixedly installed on the bottom of the material bin (4), a first electromagnetic valve (6) is fixedly installed on the bottom of the discharge pipe (5), a feeding pipe (7) is fixedly installed on the surface of the first electromagnetic valve (6), a second electromagnetic valve (8) is fixedly installed on the surface of the feeding pipe (7), an air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2).

2. A welding rod press coating device according to claim 1, characterized in that: Air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2).

3. A device for applying a coating to an electrode as claimed in claim 1, wherein: Air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2).

4. A device for applying a coating to an electrode as defined in claim 1, wherein: Air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2).

5. A welding rod press coating device according to claim 1, wherein: Air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2).

6. A welding rod press coating device according to claim 1, wherein: Air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2). Air compressor (9) is fixedly installed on the surface of the material bin (4), a cross pipe (10) is fixedly installed on the air outlet end of the air compressor (9), a connecting hose (11) is fixedly installed on the surface of the cross pipe (10), the connecting hose (11) is in communication with the second electromagnetic valve (8), and an electric heating wire (23) is fixedly installed in the pressure coating mold (2).

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