A medicine powder feeding device for flux-cored wire production

Abstract

This utility model provides a powder feeding device for flux-cored welding wire production, including a feeding bin and a hopper slidably connected to the top of the feeding bin. The bottom of the feeding bin has a discharge port. A first mounting frame and a second mounting frame, which can move up and down, are slidably connected inside the feeding bin. A first mounting bracket and a second mounting frame are slidably connected to the first and second mounting frames, respectively. A first screen and a second screen are fixedly connected to the first and second mounting frames, respectively. A connecting rod is fixedly connected to both the first and second mounting frames. The powder feeding device for flux-cored welding wire production provided by this utility model uses a mechanical linkage structure where an electric push rod drives the screen vibration, synchronously driving the hopper to reciprocate, significantly improving the screening effect and feeding uniformity, effectively reducing the risk of screen blockage, and ensuring the stability of continuous production.

Description

Technical Field

[0001] This utility model relates to the technical field of welding wire manufacturing equipment, specifically to a powder feeding device for producing flux-cored welding wire. Background Technology

[0002] In the production process of flux-cored welding wire, the cleanliness and uniformity of the flux powder are key factors affecting the quality of the welding wire. To ensure the purity of the flux filling, a screen structure is usually set in the feeding device to filter the flux powder by vibration or shaking to remove agglomerated particles or foreign objects.

[0003] However, in actual production, the powder tends to accumulate locally on the screen surface. Especially during continuous operation, screen blockage occurs frequently, which not only reduces screening efficiency but also leads to interruption of feeding, requiring frequent shutdowns for cleaning, which seriously affects the continuity of production.

[0004] In view of this, a flux-cored welding wire production powder feeding device is proposed. Utility Model Content

[0005] The purpose of this invention is to solve the problem of easy clogging of the filter screen in the existing flux-cored wire production powder feeding device, and to provide a flux-cored wire production powder feeding device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a powder feeding device for producing flux-cored welding wire, comprising a feeding bin and a hopper slidably connected to the top of the feeding bin, a discharge port being provided at the bottom of the feeding bin, a first mounting frame and a second mounting frame being slidably connected inside the feeding bin and movable up and down, a first mounting bracket and a second mounting bracket being slidably connected to the first mounting frame and the second mounting frame respectively, a first screen and a second screen being fixedly connected to the first mounting bracket and the second mounting bracket respectively, a connecting rod being fixedly connected to the first mounting frame and the second mounting frame, and an electric push rod for driving the connecting rod to move up and down being fixedly connected to the feeding bin.

[0007] Preferably, a screw is rotatably connected to the top of the feeding hopper, and a screw sleeve is connected to the screw via a ball screw thread. The screw sleeve is fixedly connected to the hopper. When the screw rotates, it drives the hopper to move at the top of the feeding hopper so that the powder falls evenly onto the first screen.

[0008] Preferably, a rack is fixedly connected to the connecting rod, a drive gear meshing with the rack is rotatably connected to the feeding hopper, a rotating rod is rotatably connected to the feeding hopper, a driven gear meshing with the drive gear is fixedly connected to the rotating rod, a first bevel gear is fixedly connected to the rotating rod, and a second bevel gear meshing with the first bevel gear is rotatably connected to the feeding hopper. Both the second bevel gear and the end of the screw are fixedly connected to pulleys. The two pulleys are connected by a transmission belt, so that when the electric push rod drives the first and second screens to vibrate up and down, it can drive the hopper to reciprocate at the top of the feeding hopper.

[0009] Preferably, both ends of the hopper are fixedly connected to a first slider, and the top of the feeding bin is provided with a first groove that is horizontally set and adapted to the size of the first slider.

[0010] Preferably, a second slider is fixedly connected to both the first mounting frame and the second mounting frame, and a vertically arranged second groove adapted to the size of the second slider is provided on the inner wall of the feeding bin.

[0011] Preferably, mounting strips are fixedly connected to both sides of the first mounting frame and the second mounting frame, and mounting grooves adapted to the size of the mounting strips are provided on both the first mounting frame and the second mounting frame. Limiting blocks are detachably fixedly connected to both the first mounting frame and the second mounting frame by screws, and the limiting blocks are used to limit the first screen and the second screen.

[0012] Preferably, the aperture of the first screen is larger than that of the second screen, and the feeding bin is provided with a channel for removing the first mounting bracket and the second mounting bracket.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] 1. The flux-cored welding wire production powder feeding device provided by this utility model has a mechanical linkage structure that drives the screen to vibrate through an electric push rod, which synchronously drives the hopper to move back and forth, significantly improving the screening effect and feeding uniformity.

[0015] 2. The flux-cored welding wire production powder feeding device provided by this utility model adopts a sliding and detachable mounting frame and limit block fixing design, which simplifies the screen replacement process, facilitates quick adjustment of screen combination for different powder particle sizes, and reduces equipment downtime maintenance time.

[0016] 3. The flux-cored welding wire production powder feeding device provided by this utility model guides the powder to disperse naturally and flow along a preset path during vibration by using a double-layer screen with staggered layout and guide chute, effectively reducing the risk of screen blockage and ensuring the stability of continuous production. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the internal structure of the feeding bin according to an embodiment of the present invention.

[0019] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0020] Figure 3 This is a split view of the first screen according to an embodiment of the present invention.

[0021] Figure 4 This is a diagram showing the connection relationship between the rack and the screw in one embodiment of the present invention.

[0022] In the picture:

[0023] 1. Feeding bin; 101. Hopper; 102. Discharge port; 2. First mounting frame; 21. First mounting bracket; 22. First screen; 3. Second mounting frame; 31. Second mounting bracket; 32. Second screen; 4. Limiting block; 5. Mounting strip; 51. Mounting groove; 7. First slider; 71. First slide groove; 8. Second slider; 81. Second slide groove; 9. Connecting rod; 10. Rack; 11. Drive gear; 12. Driven gear; 13. Rotating rod; 14. First bevel gear; 15. Second bevel gear; 16. Pulley; 17. Transmission belt; 18. Screw; 19. Screw sleeve; 20. Electric push rod; 201. Channel. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figure 1-4 .

[0026] This utility model relates to a powder feeding device for producing flux-cored welding wire, comprising a feeding bin 1 and a hopper 101 slidably connected to the top of the feeding bin 1. The bottom of the feeding bin 1 has a discharge port 102. A first mounting frame 2 and a second mounting frame 3, which can move up and down, are slidably connected inside the feeding bin 1. A first mounting bracket 21 and a second mounting bracket 31 are slidably connected to the first mounting frame 2 and the second mounting bracket 31, respectively. A first screen 22 and a second screen 32 are fixedly connected to the first mounting bracket 21 and the second mounting bracket 31, respectively. A connecting rod 9 is fixedly connected to both the first mounting frame 2 and the second mounting frame 3. An electric push rod 20 is fixedly connected to the feeding bin 1 for driving the connecting rod 9 to move up and down. With this configuration, the electric push rod 20 drives the connecting rod 9 to synchronously vibrate the double-layer screens up and down, achieving step-by-step sieving of the powder.

[0027] In addition, a screw 18 is rotatably connected to the top of the feeding bin 1. A screw sleeve 19 is connected to the screw 18 via a ball screw thread. The screw sleeve 19 is fixedly connected to the hopper 101. When the screw 18 rotates, it drives the hopper 101 to move at the top of the feeding bin 1 so that the powder falls evenly onto the first screen 22. In this way, the rotational motion is converted into the horizontal reciprocating movement of the hopper 101 by the screw 18, which ensures that the powder is evenly spread on the screen surface, avoids the problem of screen hole blockage caused by local accumulation, and improves the screening efficiency.

[0028] Secondly, a rack 10 is fixedly connected to the connecting rod 9, and a drive gear 11 that meshes with the rack 10 is rotatably connected to the feeding bin 1. A rotating rod 13 is rotatably connected to the feeding bin 1, and a driven gear 12 that meshes with the drive gear 11 is fixedly connected to the rotating rod 13. A first bevel gear 14 is fixedly connected to the rotating rod 13, and a second bevel gear 15 that meshes with the first bevel gear 14 is rotatably connected to the feeding bin 1. Both the second bevel gear 15 and the end of the screw 18 are fixedly connected to pulleys 16. The two pulleys 16 are connected by a transmission belt 17, so that when the electric push rod 20 drives the first screen 22 and the second screen 32 to vibrate up and down, it can drive the hopper 101 to move back and forth on the top of the feeding bin 1. With this setting, by linking the screen vibration with the movement of the hopper 101, only a single electric push rod 20 is needed to synchronously control the screening and feeding actions, reducing energy consumption and solving the problem of action mismatch caused by traditional split drives, ensuring continuous and uniform screening of the medicine powder.

[0029] Furthermore, both ends of the hopper 101 are fixedly connected to the first slider 7, and the top of the feeding bin 1 is provided with a first groove 71 that is horizontally set and adapted to the size of the first slider 7. With this setting, the movement trajectory of the hopper 101 can be constrained by the cooperation of the slider and the groove, preventing the hopper 101 from deviating or getting stuck due to vibration or external force, and ensuring that the material feeding path is stable and reliable.

[0030] Furthermore, a second slider 8 is fixedly connected to both the first mounting frame 2 and the second mounting frame 3. A vertically arranged second slide groove 81 adapted to the size of the second slider 8 is provided on the inner wall of the feeding bin 1. This arrangement can prevent the screen from shifting laterally or tilting due to vibration inertia, thus ensuring the accuracy of the screening action.

[0031] Specifically, mounting strips 5 are fixedly connected to both sides of the first mounting bracket 21 and the second mounting bracket 31. Mounting grooves 51 that are adapted to the size of the mounting strips 5 are provided on the first mounting frame 2 and the second mounting frame 3. Limiting blocks 4 are detachably fixedly connected to the first mounting bracket 21 and the second mounting bracket 31 by screws. The limiting blocks 4 are used to limit the first screen 22 and the second screen 32. With this configuration, the combination design of the mounting strips 5 and the limiting blocks 4 can realize the quick assembly and disassembly of the screens, making it easy to replace screens of different mesh sizes to adapt to different types of powders. At the same time, the fixing structure of the limiting blocks 4 prevents the screens from loosening and falling off during vibration.

[0032] The aperture of the first screen 22 is larger than that of the second screen 32. The feeding bin 1 is provided with a channel 201 for taking out the first mounting bracket 21 and the second mounting bracket 31. This configuration enables the coarse and fine screening of the powder through the aperture design of the double-layer screen, effectively intercepting impurities and improving screening accuracy. The side channel 201 facilitates maintenance personnel to quickly remove the screen components for cleaning or replacement, improving the maintainability of the equipment.

[0033] Working principle:

[0034] When the flux-cored welding wire production powder feeding device is working, after the powder enters the feeding bin 1 from the hopper 101, the electric push rod 20 drives the connecting rod 9 to move the first mounting frame 2 and the second mounting frame 3 back and forth in the vertical direction, so that the first screen 22 and the second screen 32 vibrate synchronously. Under the action of vibration, the powder passes through the two screens in sequence to complete the grading and screening. The powder that meets the particle size requirements is finally discharged through the discharge port 102. At the same time, the up and down movement of the connecting rod 9 drives the screw 18 to rotate after being reversed by the bevel gear set. The screw 18 converts the rotational motion into the horizontal reciprocating movement of the hopper 101, so that the powder in the hopper 101 is evenly spread on the surface of the first screen 22. This setting not only avoids the accumulation of powder and blockage of the screen holes, but also ensures that the powder completes the screening and feeding process continuously and evenly.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A flux-cored welding wire production powder feeding device, characterized in that: The device includes a feeding bin (1) and a hopper (101) slidably connected to the top of the feeding bin (1). The bottom of the feeding bin (1) is provided with a discharge port (102). A first mounting frame (2) and a second mounting frame (3) that can move up and down are slidably connected inside the feeding bin (1). A first mounting bracket (21) and a second mounting bracket (31) are slidably connected to the first mounting bracket (2) and the second mounting bracket (3), respectively. A first screen (22) and a second screen (32) are fixedly connected to the first mounting bracket (21) and the second mounting bracket (31), respectively. A connecting rod (9) is fixedly connected to the first mounting frame (2) and the second mounting frame (3). An electric push rod (20) for driving the connecting rod (9) to move up and down is fixedly connected to the feeding bin (1).

2. The flux-cored wire production powder feeding device as described in claim 1, characterized in that: The top of the feeding bin (1) is rotatably connected to a screw (18), and a screw sleeve (19) is connected to the screw (18) through a ball screw thread. The screw sleeve (19) is fixedly connected to the hopper (101). When the screw (18) rotates, it drives the hopper (101) to move on the top of the feeding bin (1) so that the powder falls evenly onto the first screen (22).

3. The flux-cored wire production powder feeding device as described in claim 2, characterized in that: A rack (10) is fixedly connected to the connecting rod (9). A drive gear (11) meshing with the rack (10) is rotatably connected to the feeding bin (1). A rotating rod (13) is rotatably connected to the feeding bin (1). A driven gear (12) meshing with the drive gear (11) is fixedly connected to the rotating rod (13). A first bevel gear (14) is fixedly connected to the rotating rod (13). A second bevel gear (15) meshing with the first bevel gear (14) is rotatably connected to the feeding bin (1). A pulley (16) is fixedly connected to the end of the second bevel gear (15) and the screw (18). The two pulleys (16) are connected by a transmission belt (17), so that when the electric push rod (20) drives the first screen (22) and the second screen (32) to shake up and down, it can drive the hopper (101) to move back and forth on the top of the feeding bin (1).

4. The flux-cored wire production powder feeding device as described in claim 1, characterized in that: Both ends of the hopper (101) are fixedly connected to the first slider (7), and the top of the feeding bin (1) is provided with a first groove (71) that is horizontally set and adapted to the size of the first slider (7).

5. The flux-cored wire production powder feeding device as described in claim 1, characterized in that: The first mounting frame (2) and the second mounting frame (3) are both fixedly connected with a second slider (8), and the inner wall of the feeding bin (1) is provided with a vertically arranged second slide groove (81) that is adapted to the size of the second slider (8).

6. The flux-cored wire production powder feeding device as described in claim 1, characterized in that: Mounting strips (5) are fixedly connected to both sides of the first mounting bracket (21) and the second mounting bracket (31). Mounting grooves (51) adapted to the size of the mounting strips (5) are provided on the first mounting frame (2) and the second mounting frame (3). Limiting blocks (4) are detachably fixedly connected to the first mounting bracket (21) and the second mounting bracket (31) by screws. The limiting blocks (4) are used to limit the first screen (22) and the second screen (32).

7. The flux-cored wire production powder feeding device as described in claim 1, characterized in that: The aperture of the first screen (22) is larger than that of the second screen (32), and the feeding bin (1) is provided with a channel (201) for taking out the first mounting bracket (21) and the second mounting bracket (31).

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