Powder adding device of surfacing welding machine

Abstract

The utility model discloses a powder adding device of a surfacing welding machine, which comprises a hopper, a material distributing mechanism and a material distributing mechanism, a plurality of material bins are arranged in the hopper, the bottoms of the material bins are communicated with the material distributing mechanism through material guiding pipes, the material distributing mechanism is arranged below the material distributing mechanism, and the material distributing mechanism controls metal powder in the material bins to fall into the material distributing mechanism. Different kinds of metal powder are independently stored in each stock bin, classified management of the metal powder is achieved, the different kinds of metal powder can be rapidly switched through the material distributing mechanism under the condition that the stock bins do not need to be emptied, and therefore the overall production efficiency is improved. In addition, material distribution columns in the material distribution mechanism are accurately aligned with an external material guide pipe and the material distribution mechanism through material guide holes in a spiral array, and smooth flowing and accurate material distribution of the metal powder are guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of wear-resistant steel plate production equipment, and in particular to a powder feeding device for a welding machine. Background Technology

[0002] In the production process of wear-resistant steel plates, a welding machine uses a welding torch to fuse molten welding wire with a steel substrate to form a metal layer with specific wear-resistant properties. To modify the properties of wear-resistant steel plates to meet the needs of different practical environments, it is usually necessary to add specific metal powders to the molten pool.

[0003] However, the existing powder feeding devices of welding machines have some obvious problems in practical applications. First, when different types of metal powder are needed to produce wear-resistant steel plates of different specifications, the existing powder feeding devices often need to completely empty the metal powder in the powder hopper before new metal powder can be loaded, which greatly reduces production efficiency and increases production costs.

[0004] Secondly, since wear-resistant metal powder needs to be fused with the steel substrate by the welding wire melted by the welding torch, the powder outlet in the existing powder feeding device is usually fixed on one side of the welding torch and cannot be flexibly adjusted according to the direction of the welding torch movement. This results in a process of no-load reset of the welding torch during production, which affects the production efficiency of wear-resistant steel plates.

[0005] Therefore, there is an urgent need for a new powder-adding device that can solve these problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a powder-adding device for a welding machine to solve the problems mentioned in the background art.

[0007] To achieve the above technical objectives, the present invention provides a powder feeding device for a welding machine, comprising a hopper, a distributing mechanism, and a feeding mechanism. The hopper contains several silos, the bottom of which is connected to the distributing mechanism via a guide pipe. The feeding mechanism is located below the distributing mechanism. The distributing mechanism controls the metal powder in the silos to fall into the feeding mechanism. The feeding mechanism has two feeding pipes, which are respectively located on both sides of the welding torch. The feeding mechanism controls the opening and closing of the two feeding pipes according to the direction of movement of the welding torch.

[0008] Furthermore, the material distribution mechanism includes an outer tube with a through hole on its cylindrical surface. One through hole on one side of the outer tube is connected to a guide tube, and the other through hole is directly opposite the material distribution mechanism. Inside the outer tube, there is a material distribution column with the same inner diameter as the outer tube. Several guide holes are spirally arranged on the material distribution column, and the guide holes connect the through holes on both sides of the outer tube. One end of the outer tube is closed, and the other end is provided with a rotary positioning mechanism that drives the material distribution column to rotate and position itself.

[0009] Further, the rotating positioning mechanism comprises an end cover and a positioning pressing plate, the end cover is arranged at one end of the outer pipe and is provided with an arc-shaped sliding hole, the distribution column is provided with a driving column penetrating through the arc-shaped sliding hole and the positioning pressing plate, the end of the driving column is provided with an adjusting bolt, the positioning spring is arranged on the driving column between the adjusting bolt and the positioning pressing plate, the side, adjacent to the end cover, of the positioning pressing plate is provided with a positioning block, and the end cover is provided with a positioning groove matched with the positioning block.

[0010] Further, the distributing mechanism comprises a receiving groove, the bottom of the receiving groove is communicated with the distributing pipe through a conveying pipe, one side of the receiving groove is provided with a reversing support plate, the reversing support plate is provided with a rotating shaft seat, the rotating shaft seat is provided with a rotating shaft, the rotating shaft penetrates through the receiving groove, the rotating shaft is provided with two shaft sleeves, the two shaft sleeves are arranged inside and outside the receiving groove respectively, the two shaft sleeves are respectively provided with a reversing support rod and a closing support rod which are parallel to each other, the reversing support rod and the closing support rod are both provided with a reset spring with one end abutting against the shaft sleeve, the bottom of the receiving groove is provided with a baffle, the baffle is hinged to the lower end of the closing support rod, and the welding machine support is provided with a stop block matched with the reversing support rod.

[0011] Further, the receiving groove is provided with a distributing support below, the distributing pipe is arranged on the distributing support through a clamp and bolts, and the angle between the distributing pipe and the horizontal direction is adjustable.

[0012] Compared with the prior art, the beneficial effects of the present application include:

[0013] 1. The present application separates multiple hoppers in the hopper, each hopper independently stores different types of metal powder, realizes the classified management of metal powder, and through the distribution mechanism, different types of metal powder can be quickly switched without emptying the hopper, thereby improving the overall production efficiency; in addition, the distribution column in the distribution mechanism is precisely aligned with the external guide pipe and the distributing mechanism through the spiral array of the guide hole, ensuring smooth flow and accurate distribution of the metal powder.

[0014] 2. The two distributing pipes of the distributing mechanism are located on both sides of the welding gun, so that there is always a distributing pipe in front of the welding gun during the movement of the welding gun, eliminating the process of welding gun emptying and returning, thereby realizing continuous and efficient distribution work; this improvement not only improves the production efficiency of the wear-resistant steel plate, but also reduces the quality problems caused by uneven distribution. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the powder adding device of the surfacing machine provided by the present application;

[0016] Figure 2 is a powder feeding device of a surfacing machine provided by the utility model, and the powder feeding device comprises a hopper 1, a powder distributing mechanism 3 and a powder feeding mechanism 4.

[0017] Figure 3 is a powder feeding device of a surfacing machine provided by the utility model, and the powder feeding device comprises a hopper 1, a powder distributing mechanism 3 and a powder feeding mechanism 4.

[0018] Figure 4 is a powder feeding device of a surfacing machine provided by the utility model, and the powder feeding device comprises a hopper 1, a powder distributing mechanism 3 and a powder feeding mechanism 4. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and are not used to limit the utility model.

[0020] Referring to Figure 1 , the utility model provides a kind of powder feeding device of surfacing machine, including hopper 1, powder distributing mechanism 3 and powder feeding mechanism 4.Hopper 1 is divided into several bins 101, each bin 101 is used to store different kinds of metal powder;The bottom of bin 101 is connected with powder distributing mechanism 3 by guide pipe 2, so that metal powder can smoothly enter powder distributing mechanism 3 from bin 101.

[0021] Referring to Figure 2 , the specific structure of powder distributing mechanism 3 includes a through hole passing through the cylindrical surface of outer tube 301;The through hole of one side of outer tube 301 is connected with guide pipe 2, for receiving metal powder from bin 101;The through hole of the other side is opposite to powder feeding mechanism 4.Outer tube 301 is provided with powder distributing column 302 equal to its inner diameter, and powder distributing column 302 is provided with a plurality of guide holes 303 in spiral array;These guide holes 303 connect the through holes of both sides of outer tube 301, so that metal powder can flow from one side through hole to the other side through hole through guide hole 303;One end of outer tube 301 is closed, and the other end is provided with end cover 304, arc sliding hole 306 is arranged on end cover 304, driving column 305 is arranged on powder distributing column 302 and penetrates arc sliding hole 306 and positioning pressing plate 307, adjusting bolt 309 is installed at the end of driving column 305, positioning spring 308 is arranged on driving column 305 between adjusting bolt 309 and positioning pressing plate 307, positioning block (not shown in figure) is arranged on the side of positioning pressing plate 307 adjacent to end cover 304, and positioning groove 310 is arranged on end cover 304 and matched with positioning block.

[0022] In actual use, when different kinds of metal powder need to be replaced, the positioning plate 307 is pulled up to disengage the positioning block therefrom from the positioning groove 310, so that the corresponding guide hole 303 is aligned with the guide pipe 2 and the distribution mechanism 4 through the rotation of the distribution column 302, so that the switching of different metal powder can be realized without emptying the hopper 101, which greatly improves the production efficiency.

[0023] With reference to Figure 3 The distribution mechanism 4 specifically comprises a receiving groove 401, and the bottom of the receiving groove 401 is connected with the distribution pipe 411 through a conveying pipe 402. Two distribution pipes 411 are arranged on the distribution mechanism 4, and the two distribution pipes 411 are arranged on the two sides of the welding gun. The advantage of this arrangement is that the opening and closing of the two distribution pipes 411 can be controlled according to the movement direction of the welding gun, so that the distribution pipe 411 is always arranged in front of the welding gun in the advancing direction, thereby eliminating the process of welding gun empty return and improving the production efficiency of the wear-resistant steel plate. A distribution support 410 is arranged below the receiving groove 401, and the distribution pipe 411 is arranged on the distribution support 410 through a clamp and bolts. The included angle between the distribution pipe 411 and the distribution support 410 can be realized by adjusting the position of the clamp and the bolts. The purpose of adjusting the included angle is to enable the metal powder to be more accurately distributed in front of the welding gun. At the same time, according to the actual welding requirement and the movement trajectory of the welding gun, the included angle can be flexibly adjusted to achieve the best distribution effect.

[0024] A reversing support plate 403 is arranged on one side of the receiving groove 401, and a rotating shaft seat 404 is arranged on the reversing support plate 403. A rotating shaft 406 is arranged on the rotating shaft seat 404, and the rotating shaft 406 penetrates through the receiving groove 401. Two shaft sleeves 407 are arranged on the rotating shaft 406, and the two shaft sleeves 407 are arranged inside and outside the receiving groove 401, respectively. A reversing support rod 405 and a closing support rod 408 parallel to each other are arranged on the two shaft sleeves 407, respectively. A reset spring with one end abutting against the shaft sleeve 407 is arranged on the reversing support rod 405 and the closing support rod 408, for providing a reset force. A baffle 409 is arranged on the bottom of the receiving groove 401, and the baffle 409 is hingedly connected with the lower end of the closing support rod 408, for closing the feeding end of the conveying pipe 402. A stop block 501 cooperating with the reversing support rod 405 is arranged on the welding machine support 5.

[0025] With reference to Figure 3 , Figure 4During the movement of the welding torch mechanism 6 to the welding machine support 5, the lower end of the reversing support rod 405 is on the side opposite to the movement direction of the welding torch mechanism 6, and when the welding torch mechanism 6 moves to one end of the welding machine support 5, the lower end of the reversing support rod 405 passes the stopper 501; when the welding torch mechanism 6 moves to one end of the welding machine support 5 and reverses the movement, under the block of the stopper 501, the reversing support rod 405 rotates with the stopper 501 as the fulcrum, drives the closing support rod 408 and the baffle 409 to move through the rotating shaft 406, and closes the feeding end of the material conveying pipe 402 away from the movement direction of the welding torch mechanism 6. In this way, the front of the movement direction of the welding torch is always provided with the material conveying pipe 411 for material conveying, and the process of empty load resetting of the welding torch is eliminated.

[0026] The specific implementation manner of the present application described above does not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the present application.

Claims

1. A powder feeding device of a surfacing machine, comprising a hopper, a powder distributing mechanism and a powder distributing mechanism, characterized in that: The hopper is internally provided with a plurality of bins, the bottom of the bin is communicated with the distributing mechanism through a guide pipe, the distributing mechanism is arranged below the distributing mechanism, the distributing mechanism controls the metal powder in the bin to fall into the distributing mechanism, two distributing pipes are arranged on the distributing mechanism, and the two distributing pipes are arranged on the two sides of the welding gun respectively.

2. A powder feeding device for a surfacing machine according to claim 1, characterized in that: The distributing mechanism comprises an outer pipe, a through hole is arranged on the cylindrical surface of the outer pipe, the through hole on one side of the outer pipe is communicated with the guide pipe, and the through hole on the other side of the outer pipe is opposite to the distributing mechanism, a distributing column with the same inner diameter as the outer pipe is arranged in the outer pipe, a plurality of guide holes are arranged in the distributing column in a spiral array, the guide holes communicate the through holes on the two sides of the outer pipe, one end of the outer pipe is closed, and the other end is provided with a rotating positioning mechanism for driving the distributing column to rotate and position.

3. A powder feeding device for a surfacing machine according to claim 2, characterized in that: The rotating positioning mechanism comprises an end cover and a positioning plate, the end cover is arranged at one end of the outer pipe and is provided with an arc-shaped sliding hole, a driving column is arranged on the distributing column and penetrates the arc-shaped sliding hole and the positioning plate, an adjusting bolt is arranged at the tail end of the driving column, a positioning spring is arranged on the driving column between the adjusting bolt and the positioning plate, a positioning block is arranged on the side of the positioning plate adjacent to the end cover, and a positioning groove matched with the positioning block is arranged on the end cover.

4. A powder feeding device for a surfacing machine according to claim 2 or 3, characterized in that: The distributing mechanism comprises a receiving groove, the bottom of the receiving groove is communicated with the distributing pipe through a conveying pipe, a reversing support plate is arranged on one side of the receiving groove, a rotating shaft seat is arranged on the reversing support plate, a rotating shaft is arranged on the rotating shaft seat, the rotating shaft penetrates the receiving groove, two shaft sleeves are arranged on the rotating shaft, the two shaft sleeves are arranged inside and outside the receiving groove respectively, reversing support rods and closing support rods parallel to each other are arranged on the two shaft sleeves respectively, a reset spring with one end abutting against the shaft sleeve is arranged on the reversing support rod and the closing support rod, a baffle is arranged on the bottom of the receiving groove, the baffle is hinged to the lower end of the closing support rod, and a stop block matched with the reversing support rod is arranged on the welding machine support.

5. A powder feeding device for a surfacing machine according to claim 4, characterized in that: A distributing support is arranged below the receiving groove, the distributing pipe is arranged on the distributing support through a clamp and a bolt, and the angle between the distributing pipe and the horizontal direction is adjustable.

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