Double-layer powder adding device

Abstract

The utility model belongs to the technical field of welding wire production, and particularly relates to a double-layer powder adding device, in the double-layer powder adding device, powder with different particle sizes / densities respectively falls on a lower conveying belt and an upper conveying belt, powder with larger particle sizes / densities is located on the upper conveying belt, and a first driving mechanism drives the upper conveying belt to move; the powder with the large particle size / density falls on the lower conveying belt and is mixed with the powder with the small particle size / density, and the powder enters the material guide groove along with movement of the lower conveying belt and enters the welding wire pipe under the action of the material guide groove. According to the utility model, powder with different particle sizes / densities respectively falls on the lower conveying belt and the upper conveying belt, is mixed on the lower conveying belt, enters the guide chute and then enters the welding wire tube, so that the layering of the mixed powder in the transfer and blanking processes is effectively avoided; and the quality of the cored wire and the flux-cored wire is influenced by layering of the powder generated by successively adding the powder with different particle sizes / densities into a welding wire tube.

Description

Technical Field

[0001] This utility model belongs to the field of welding wire production technology, and in particular relates to a double-layer powder feeder. Background Technology

[0002] In the production process of cored wire and flux-cored welding wire, in order to meet different application requirements, it is sometimes necessary to add flux powder with large differences in density or particle size to the cored wire and flux-cored welding wire. If the flux powder with large differences in density or particle size is directly mixed by a powder mixer, the flux powder with different densities or particle sizes will cause serious stratification during the transfer and feeding process, affecting the amount of powder added. For this reason, the existing technology sets two sets of powder feeders at the front and back of the production line of cored wire and flux-cored welding wire to ensure the amount of powder added. However, this will cause the flux powder to form stratification in the cored wire and flux-cored welding wire, affecting the quality of the cored wire and flux-cored welding wire. Therefore, a double-layer powder feeder is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a double-layer powder feeder to solve the above-mentioned problems.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] A double-layer powder feeder includes: a support unit, on which two feeding components are provided; an upper conveyor belt and a lower conveyor belt are provided inside the support unit; the top surfaces of the upper and lower conveyor belts are both horizontally arranged; the upper and lower conveyor belts are vertically aligned and the length of the upper conveyor belt is less than the length of the lower conveyor belt; the upper and lower conveyor belts are respectively aligned with the two feeding components; the upper conveyor belt is driven by a first driving mechanism; the lower conveyor belt is driven by a second driving mechanism; a guide trough is provided at the discharge end of the lower conveyor belt; a collection box is provided below the guide trough; a welding wire tube passes between the guide trough and the collection box; the top opening of the welding wire tube is aligned with the bottom opening of the guide trough.

[0006] Preferably, a front fixed bracket is fixedly connected to the base, a first rotating shaft is rotatably connected inside the front fixed bracket, a second sliding bracket is provided on the base, a fourth rotating shaft is rotatably connected inside the second sliding bracket, the axes of the fourth rotating shaft and the first rotating shaft are both horizontal and parallel, the upper conveyor belt is sleeved on the fourth rotating shaft and the first rotating shaft, and an auxiliary shaft is rotatably connected inside the front fixed bracket, the auxiliary shaft making rolling contact with the top surface of the upper conveyor belt.

[0007] Preferably, the first drive mechanism includes a second motor, which is fixedly connected to the second sliding bracket. The output shaft of the second motor is drivenly connected to the input shaft of a planetary gear mechanism. The output shaft of the planetary gear mechanism extends into the second sliding bracket and is coaxially fixedly connected to the fourth rotating shaft.

[0008] The second drive mechanism has the same structure as the first drive mechanism.

[0009] Preferably, a second rotating shaft is rotatably connected inside the front fixed bracket, a first sliding bracket is provided on the base, a third rotating shaft is rotatably connected inside the first sliding bracket, the axes of the third rotating shaft and the second rotating shaft are both horizontal and parallel, and the lower conveyor belt is sleeved on the third rotating shaft and the second rotating shaft.

[0010] Preferably, a slide rail is fixedly connected to the base, the slide rail is arranged along the length direction of the lower conveyor belt, a first slider and a second slider are slidably connected on the slide rail, the first sliding bracket is fixedly connected to the first slider, and the second sliding bracket is fixedly connected to the second slider;

[0011] One end of the slide rail is threadedly connected to a first adjusting bolt via a connecting plate. The first adjusting bolt is arranged along the length of the slide rail and abuts against the second sliding bracket.

[0012] The other end of the slide rail is rotatably connected to a second adjusting bolt via a connecting plate. The second adjusting bolt is set along the length of the slide rail and is threadedly connected to the first sliding bracket.

[0013] Preferably, the support includes two side support plates fixed to the base, the two side support plates are located on opposite sides of the front fixed bracket, a top plate is fixed between the top ends of the two side support plates, and the feeding assembly is fixedly installed on the top plate.

[0014] Preferably, the feeding assembly includes a storage hopper fixed to the top surface of the top plate and a feeding hopper fixed to the bottom surface of the top plate. The storage hopper and the feeding hopper are connected. The two feeding hoppers are arranged along the length direction of the lower conveyor belt. The two feeding hoppers are respectively arranged vertically and vertically corresponding to the lower conveyor belt and the upper conveyor belt. A discharge control assembly is installed at the discharge end of the feeding hopper.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] In this invention, powders of different particle sizes / densities fall onto the lower conveyor belt and the upper conveyor belt respectively, with the powders of larger particle sizes / densities located on the upper conveyor belt. The first driving mechanism drives the upper conveyor belt to move, causing the powders of larger particle sizes / densities to fall onto the lower conveyor belt and mix with the powders of smaller particle sizes / densities. As the lower conveyor belt moves, the powders enter the guide trough and, under the action of the guide trough, enter the welding wire tube.

[0017] In this invention, powders of different particle sizes / densities fall onto the lower and upper conveyor belts respectively, mix on the lower conveyor belt, and then enter the guide trough and the welding wire tube. This effectively avoids the problem of powder stratification during transfer and feeding, which affects the powder ratio, and the problem of powder stratification caused by adding powders of different particle sizes / densities to the welding wire tube in sequence, which affects the quality of cored wire and flux-cored welding wire. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the front view of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0022] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0023] Figure 5 for Figure 2 A magnified view of a section at point C;

[0024] Figure 6 for Figure 2 A magnified view of a section at point D;

[0025] The components include: 1. Collection box; 2. Side support plate; 3. Top plate; 4. Guardrail; 5. First motor; 6. Feeding hopper; 7. Storage hopper; 8. Front fixed bracket; 9. Lower conveyor belt; 10. Upper conveyor belt; 11. First rotating shaft; 12. Second rotating shaft; 13. Guide chute; 14. Welding wire tube; 15. Slide rail; 16. First slider; 17. First sliding bracket; 18. Third rotating shaft; 19. Second sliding bracket; 20. Second slider; 21. First adjusting bolt; 22. Second adjusting bolt; 23. Second motor; 24. Fourth rotating shaft; 25. Auxiliary shaft; 26. Planetary gear mechanism. 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] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 6 This utility model discloses a double-layer powder feeder, including: a support part, on which two feeding components are provided, and an upper conveyor belt 10 and a lower conveyor belt 9 are provided inside the support part. The top surfaces of the upper conveyor belt 10 and the lower conveyor belt 9 are both horizontally arranged. The upper conveyor belt 10 and the lower conveyor belt 9 are arranged vertically and vertically, and the length of the upper conveyor belt 10 is less than the length of the lower conveyor belt 9. The upper conveyor belt 10 and the lower conveyor belt 9 are respectively arranged corresponding to the two feeding components. The upper conveyor belt 10 is driven by a first driving mechanism, and the lower conveyor belt 9 is driven by a second driving mechanism. The discharge end of the lower conveyor belt 9 is provided with a guide trough 13. A collection box 1 is provided below the guide trough 13. A welding wire tube 14 passes between the guide trough 13 and the collection box 1. The top opening of the welding wire tube 14 is arranged corresponding to the bottom opening of the guide trough 13.

[0029] Both ends of the lower conveyor belt 9 extend beyond the upper conveyor belt 10.

[0030] In this invention, powders of different particle sizes / densities fall onto the lower conveyor belt 9 and the upper conveyor belt 10 respectively, with the powders of larger particle sizes / densities located on the upper conveyor belt 10. The first driving mechanism drives the upper conveyor belt 10 to move, causing the powders of larger particle sizes / densities to fall onto the lower conveyor belt 9 and mix with the powders of smaller particle sizes / densities. As the lower conveyor belt 9 moves, the powders enter the guide trough 13 and, under the action of the guide trough 13, enter the welding wire tube 14.

[0031] In this invention, powders of different particle sizes / densities fall onto the lower conveyor belt 9 and the upper conveyor belt 10 respectively, and after being mixed on the lower conveyor belt 9, they enter the guide trough 13 and then enter the welding wire tube 14. This effectively avoids the problem of powder stratification during the transfer and feeding process after mixing, which affects the powder ratio, and the problem of powder stratification caused by adding powders of different particle sizes / densities to the welding wire tube 14 in sequence, which affects the quality of the cored wire and flux-cored welding wire.

[0032] In a further optimized design, a front fixed bracket 8 is fixedly connected to the base, and a first rotating shaft 11 is rotatably connected inside the front fixed bracket 8. A second sliding bracket 19 is provided on the base, and a fourth rotating shaft 24 is rotatably connected inside the second sliding bracket 19. The axes of the fourth rotating shaft 24 and the first rotating shaft 11 are both horizontal and parallel. The upper conveyor belt 10 is sleeved on the fourth rotating shaft 24 and the first rotating shaft 11. An auxiliary shaft 25 is rotatably connected inside the front fixed bracket 8, and the auxiliary shaft 25 makes rolling contact with the top surface of the upper conveyor belt 10.

[0033] The auxiliary shaft 25 is set so that the upper conveyor belt 10 remains horizontal during conveying.

[0034] The guide chute 13 is fixedly connected to the front fixed bracket 8. The guide chute 13 is V-shaped and has an opening at the bottom. The top opening of the guide chute 13 corresponds to the discharge end of the lower conveyor belt 9.

[0035] In a further optimized scheme, the first drive mechanism includes a second motor 23, which is fixedly connected to the second sliding bracket 19. The output shaft of the second motor 23 is connected to the input shaft of the planetary gear mechanism 26. The output shaft of the planetary gear mechanism 26 extends into the second sliding bracket 19 and is coaxially fixedly connected to the fourth rotating shaft 24.

[0036] The second drive mechanism has the same structure as the first drive mechanism.

[0037] The second drive mechanism includes a first motor 5 fixedly mounted on the first sliding bracket 17. The output shaft of the first motor 5 is connected to the input shaft of the planetary gear mechanism 26. The output shaft of the planetary gear mechanism 26 extends into the first sliding bracket 17 and is coaxially fixedly connected to the third rotating shaft 18.

[0038] The planetary gear mechanism 26 is existing technology and will not be described in detail.

[0039] The rotation of the second motor 23 drives the input shaft of the planetary gear mechanism 26 to rotate, and the output shaft of the planetary gear mechanism 26 drives the fourth rotating shaft 24 to rotate, thereby driving the upper conveyor belt 10 to move.

[0040] In a further optimized design, a second rotating shaft 12 is rotatably connected inside the front fixed bracket 8, a first sliding bracket 17 is provided on the base, and a third rotating shaft 18 is rotatably connected inside the first sliding bracket 17. The axes of the third rotating shaft 18 and the second rotating shaft 12 are both horizontal and parallel, and the lower conveyor belt 9 is fitted onto the third rotating shaft 18 and the second rotating shaft 12.

[0041] The scheme is further optimized. A slide rail 15 is fixedly connected to the base. The slide rail 15 is set along the length of the lower conveyor belt 9. A first slider 16 and a second slider 20 are slidably connected to the slide rail 15. A first sliding bracket 17 is fixedly connected to the first slider 16, and a second sliding bracket 19 is fixedly connected to the second slider 20.

[0042] One end of the slide rail 15 is threadedly connected to a first adjusting bolt 21 via a connecting plate. The first adjusting bolt 21 is set along the length of the slide rail 15 and abuts against the second sliding bracket 19.

[0043] By rotating the first adjusting bolt 21, the second sliding bracket 19 is moved away from the first rotating shaft 11, increasing the distance between the first rotating shaft 11 and the fourth rotating shaft 24, thereby adjusting the tension of the upper conveyor belt 10.

[0044] The other end of the slide rail 15 is rotatably connected to a second adjusting bolt 22 via a connecting plate. The second adjusting bolt 22 is set along the length of the slide rail 15 and is threadedly connected to the first sliding bracket 17.

[0045] By rotating the second adjusting bolt 22, the first sliding bracket 17 is moved away from the second rotating shaft 12, increasing the distance between the second rotating shaft 12 and the third rotating shaft 18, thereby adjusting the tension of the lower conveyor belt 9.

[0046] The design is further optimized so that the support part includes two side support plates 2 fixed to the base. The two side support plates 2 are located on opposite sides of the front fixed bracket 8. A top plate 3 is fixed between the top ends of the two side support plates 2. The material feeding assembly is fixedly installed on the top plate 3.

[0047] The scheme is further optimized. The feeding component includes a storage hopper 7 fixed to the top surface of the top plate 3 and a feeding hopper 6 fixed to the bottom surface of the top plate 3. The storage hopper 7 and the feeding hopper 6 are connected. The two feeding hoppers 6 are set along the length of the lower conveyor belt 9. The two feeding hoppers 6 are respectively set vertically to correspond to the lower conveyor belt 9 and the upper conveyor belt 10. The discharge end of the feeding hopper 6 is equipped with a discharge control component.

[0048] One of the feeding hoppers 6 is located above the lower conveyor belt 9 and close to the third rotating shaft 18, while the other feeding hopper 6 is located above the upper conveyor belt 10 and between the auxiliary shaft 25 and the first rotating shaft 11.

[0049] A guardrail 4 is also fixed to the top surface of the top plate 3 to protect the storage hopper 7. The discharge control component is used to control the discharge speed of the feeding hopper 6. The discharge control component adopts existing technology, and the specific solution can be selected by those skilled in the art according to their needs.

[0050] Workflow:

[0051] Different particle sizes / densities of medicine powder enter the feeding hopper 6 through the storage hopper 7, and then fall onto the lower conveyor belt 9 and the upper conveyor belt 10 respectively through the discharge control component. The medicine powder with larger particle size / density is located on the upper conveyor belt 10. The second motor 23 drives the fourth rotating shaft 24 to rotate through the planetary gear mechanism 26, which in turn drives the upper conveyor belt 10 to move. The discharge control component is located between the auxiliary shaft 25 and the first rotating shaft 11 to prevent the auxiliary shaft 25 from contacting the medicine powder. The medicine powder on the upper conveyor belt 10 falls onto the lower conveyor belt 9.

[0052] The first motor 5 drives the third rotating shaft 18 to rotate through the planetary gear mechanism 26. The third rotating shaft 18 drives the lower conveyor belt 9 to move and feeds the two kinds of powder into the guide trough 13, and then into the welding wire tube 14. The collection box 1 is used to collect the powder that does not fall into the welding wire tube 14.

[0053] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0054] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A double-layer powder feeder, characterized in that, include: The support section is provided with two feeding components. The support section is provided with an upper conveyor belt (10) and a lower conveyor belt (9). The top surfaces of the upper conveyor belt (10) and the lower conveyor belt (9) are both horizontally arranged. The upper conveyor belt (10) and the lower conveyor belt (9) are arranged vertically and vertically, and the length of the upper conveyor belt (10) is less than the length of the lower conveyor belt (9). The upper conveyor belt (10) and the lower conveyor belt (9) are respectively arranged with the two feeding components. The upper conveyor belt (10) is driven by a first driving mechanism, and the lower conveyor belt (9) is driven by a second driving mechanism. The discharge end of the lower conveyor belt (9) is provided with a guide trough (13). A collection box (1) is provided below the guide trough (13). The welding wire tube (14) passes between the guide trough (13) and the collection box (1). The top opening of the welding wire tube (14) is arranged with the bottom opening of the guide trough (13).

2. The double-layer powder feeder according to claim 1, characterized in that: A front fixed bracket (8) is fixedly connected to the base. A first rotating shaft (11) is rotatably connected inside the front fixed bracket (8). A second sliding bracket (19) is provided on the base. A fourth rotating shaft (24) is rotatably connected inside the second sliding bracket (19). The axes of the fourth rotating shaft (24) and the first rotating shaft (11) are both horizontal and parallel. The upper conveyor belt (10) is sleeved on the fourth rotating shaft (24) and the first rotating shaft (11). An auxiliary shaft (25) is rotatably connected inside the front fixed bracket (8). The auxiliary shaft (25) is in rolling contact with the top surface of the upper conveyor belt (10).

3. The double-layer powder feeder according to claim 2, characterized in that: The first drive mechanism includes a second motor (23), which is fixedly connected to the second sliding bracket (19). The output shaft of the second motor (23) is connected to the input shaft of the planetary gear mechanism (26). The output shaft of the planetary gear mechanism (26) extends into the second sliding bracket (19) and is coaxially fixedly connected to the fourth rotating shaft (24). The second drive mechanism has the same structure as the first drive mechanism.

4. The double-layer powder feeder according to claim 2, characterized in that: The front fixed bracket (8) is rotatably connected to a second rotating shaft (12), and a first sliding bracket (17) is provided on the base. The first sliding bracket (17) is rotatably connected to a third rotating shaft (18). The axes of the third rotating shaft (18) and the second rotating shaft (12) are both horizontal and parallel. The lower conveyor belt (9) is sleeved on the third rotating shaft (18) and the second rotating shaft (12).

5. The double-layer powder feeder according to claim 4, characterized in that: A slide rail (15) is fixedly connected to the base. The slide rail (15) is arranged along the length direction of the lower conveyor belt (9). A first slider (16) and a second slider (20) are slidably connected on the slide rail (15). The first sliding bracket (17) is fixedly connected to the first slider (16), and the second sliding bracket (19) is fixedly connected to the second slider (20). One end of the slide rail (15) is threadedly connected to a first adjusting bolt (21) via a connecting plate. The first adjusting bolt (21) is arranged along the length direction of the slide rail (15), and the first adjusting bolt (21) abuts against the second sliding bracket (19). The other end of the slide rail (15) is rotatably connected to a second adjusting bolt (22) via a connecting plate. The second adjusting bolt (22) is set along the length direction of the slide rail (15) and is threadedly connected to the first sliding bracket (17).

6. The double-layer powder feeder according to claim 2, characterized in that: The support includes two side support plates (2) fixed to the base. The two side support plates (2) are located on opposite sides of the front fixed bracket (8). A top plate (3) is fixed between the top ends of the two side support plates (2). The feeding assembly is fixedly installed on the top plate (3).

7. The double-layer powder feeder according to claim 6, characterized in that: The feeding assembly includes a storage hopper (7) fixed to the top surface of the top plate (3) and a feeding hopper (6) fixed to the bottom surface of the top plate (3). The storage hopper (7) and the feeding hopper (6) are connected. The two feeding hoppers (6) are arranged along the length direction of the lower conveyor belt (9). The two feeding hoppers (6) are respectively arranged vertically and vertically with the lower conveyor belt (9) and the upper conveyor belt (10). The discharge end of the feeding hopper (6) is equipped with a discharge control assembly.

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