Full-automatic local heat treatment device special for full-iron rivet production

Abstract

The utility model relates to the technical field of rivet production, in particular to a special full-automatic local heat treatment device for full-iron rivet production, which comprises a table body, a reciprocating screw rod is horizontally and rotatably mounted in a rectangular groove, a sliding block is sleeved on the reciprocating screw rod in a threaded manner, and a rectangular moving frame is fixedly mounted on the upper surface of the sliding block through a connecting plate. Two first threaded rods with opposite thread directions are symmetrically, horizontally and rotationally mounted at the bottom in the moving frame, the first threaded rods are sleeved with threaded sleeves in a threaded mode, a transverse plate is fixedly mounted between the two threaded sleeves, and the first threaded rods are fixedly sleeved with a bearing plate; the transverse plate is fixedly connected with the movable frame through a first spring rod; a mounting opening is formed in the upper surface of the table body, a cooling box is fixedly mounted in the mounting opening, and an abutting block is fixedly mounted on the upper surface of the cooling box through an L-shaped rod. And manual discharging is not needed, automatic discharging can be achieved, and the potential safety hazard that workers are scalded is avoided.

Description

Technical Field

[0001] This utility model relates to the field of rivet production technology, and in particular to a fully automatic local heat treatment device for the production of all-iron rivets. Background Technology

[0002] In the production process of all-iron rivets, heat treatment is an extremely critical step, as it directly affects the mechanical properties of the rivets, such as hardness, strength, and toughness. The most common heat treatment method is to pass the rivet through an induction heating coil and then immerse it in cooling water for cooling.

[0003] To speed up the heat treatment efficiency of rivets, multiple rivets to be heat-treated are usually placed in a placement box, which is then passed through an induction heating coil. The rivets are then removed from the placement box and placed in cooling water. However, since the placement box has just been removed from the induction heating coil, both the placement box and the rivets are at high temperatures, posing a risk of burns when handled manually. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art. In order to accelerate the heat treatment efficiency of rivets, multiple rivets to be heat treated are generally placed in a placement box, and then the placement box is passed through the induction heating coil. The rivets in the placement box are then taken out and put into cooling water. However, since the placement box has just been moved out of the induction heating coil, the temperature of the placement box and the rivets is high. Manual handling poses a safety hazard of burns. Therefore, a fully automatic local heat treatment device for all-iron rivet production is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fully automatic local heat treatment device for the production of all-iron rivets includes a platform. An induction heater is fixedly installed on the upper surface of the platform, and an induction heating coil is installed on the surface of the induction heater. A rectangular groove is formed on the upper surface of the platform, and a reciprocating screw is horizontally rotatably installed in the rectangular groove. A slider is threaded onto the reciprocating screw. A rectangular movable frame is fixedly installed on the upper surface of the slider through an L-shaped connecting plate. Two first threaded rods with opposite thread directions are symmetrically and horizontally rotatably installed at the bottom of the movable frame. Threaded sleeves are threaded onto the first threaded rods, and a horizontal plate is fixedly installed between the two threaded sleeves. A load-bearing plate is fixedly sleeved on the first threaded rods. The horizontal plate is fixedly connected to the movable frame through a first spring rod. The rotation of the reciprocating screw is controlled by a drive assembly.

[0007] The upper surface of the platform has an installation opening, in which a cooling box is fixedly installed. The cooling box is filled with cooling water, and a U-shaped abutment is fixedly installed on the upper surface of the cooling box by an L-shaped rod. The abutment corresponds to the position of the horizontal plate.

[0008] Preferably, the drive assembly includes a drive motor fixedly mounted on one side of the platform, and the output shaft of the drive motor is fixedly connected to a reciprocating lead screw.

[0009] Preferably, a second spring rod is fixedly installed on the surface of the connecting plate, and a baffle is fixedly installed at one end of the second spring rod. The length of the baffle is greater than the width of the moving frame, and the upper surface of the baffle slides in contact with the lower surfaces of the two load-bearing plates. The second spring rod is controlled to retract by a pressing component.

[0010] Preferably, the pressing component includes two L-shaped abutment rods symmetrically fixedly installed on the upper surface of the movable frame, and both abutment rods are located on the moving path of the baffle.

[0011] Preferably, inclined plates are fixedly installed on both the left and right side walls of the cooling box, and an opening for rivets to pass through is formed between the two inclined plates.

[0012] Preferably, a second threaded rod is horizontally rotatably installed inside the cooling box, and multiple baffles are fixedly installed on the surface of the second threaded rod. The rectangular groove wall has a horizontally opened mounting groove, one end of the second threaded rod passes through the mounting groove, an mounting block is fixedly installed on the lower surface of the slider, a fixing rod is fixedly installed on the surface of the mounting block, one end of the fixing rod has a horizontally opened threaded groove, and one end of the second threaded rod is threadedly installed in the threaded groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When the moving frame and two load-bearing plates, along with multiple rivets, pass through the induction heating coil, the two load-bearing plates will rotate relative to each other, causing the heat-treated rivets to automatically fall into the cooling box. This eliminates the need for manual unloading and avoids the safety hazard of burns to workers. Attached Figure Description

[0015] Figure 1 This is a frontal perspective view of a fully automatic local heat treatment device for the production of all-iron rivets proposed in this utility model.

[0016] Figure 2 This is a top-view three-dimensional structural diagram of a fully automatic local heat treatment device for the production of all-iron rivets proposed in this utility model;

[0017] Figure 3This is a partial bottom-view three-dimensional structural diagram of a fully automatic local heat treatment device for the production of all-iron rivets proposed in this utility model;

[0018] Figure 4 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the cooling box in a fully automatic local heat treatment device for the production of all-iron rivets proposed in this utility model;

[0019] Figure 5 This is a partial three-dimensional structural diagram of the cooling box and the moving frame in a fully automatic local heat treatment device for all-iron rivet production proposed in this utility model.

[0020] Figure 6 for Figure 2 Enlarged view of the structure at point A in the middle;

[0021] Figure 7 for Figure 3 Enlarged view of the structure at point B in the middle.

[0022] In the diagram: 1. Platform, 2. Induction heater, 3. Induction heating coil, 4. Reciprocating lead screw, 5. Slider, 6. Connecting plate, 7. Moving frame, 8. First threaded rod, 9. Threaded sleeve, 10. Horizontal plate, 11. Cooling box, 12. Abutment, 13. Load-bearing plate, 14. First spring rod, 15. Drive motor, 16. Second spring rod, 17. Baffle, 18. Abutment, 19. Inclined plate, 20. Through port, 21. Second threaded rod, 22. Baffle plate, 23. Fixing rod, 24. Threaded groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0025] Reference Figures 1-7A fully automatic local heat treatment device for the production of all-iron rivets includes a platform 1. An induction heater 2 is fixedly installed on the upper surface of the platform 1. An induction heating coil 3 is installed on the surface of the induction heater 2. A rectangular groove is opened on the upper surface of the platform 1. A reciprocating screw 4 is horizontally rotatably installed in the rectangular groove. A slider 5 is threaded onto the reciprocating screw 4. The surface of the slider 5 slides in contact with the groove wall of the rectangular groove. A rectangular movable frame 7 is fixedly installed on the upper surface of the slider 5 through an L-shaped connecting plate 6. Two first threaded rods 8 with opposite thread directions are symmetrically and horizontally rotatably installed at the bottom of the movable frame 7. Threaded sleeves 9 are threaded onto the first threaded rods 8. A horizontal plate 10 is fixedly installed between the two threaded sleeves 9. A load-bearing plate 13 is fixedly sleeved onto the first threaded rods 8. The horizontal plate 10 is fixedly connected to the movable frame 7 through a first spring rod 14. The reciprocating screw 4 is controlled to rotate by a drive assembly. The drive assembly includes a drive motor 15 fixedly installed on one side of the platform 1. The output shaft of the drive motor 15 is fixedly connected to the reciprocating screw 4.

[0026] The upper surface of the platform 1 has an installation port, in which a cooling box 11 is fixedly installed. The cooling box 11 is filled with cooling water. A U-shaped abutment 12 is fixedly installed on the upper surface of the cooling box 11 by an L-shaped rod. The abutment 12 corresponds to the position of the horizontal plate 10.

[0027] The initial position of the moving frame 7 is to the left of the induction heating coil 3 before it passes through it. At this time, both load-bearing plates 13 are horizontal. Then, the rivet to be heat-treated is put into the moving frame 7 and placed on the upper surface of the load-bearing plate 13. Then, the induction heater 2, the induction heating coil 3, and the drive motor 15 are started to control the reciprocating screw 4 to rotate. The slider 5, which is threaded onto the reciprocating screw 4, will move the connecting plate 6 and the moving frame 7. The moving frame 7 will then carry the rivet into the induction heating coil 3 and move horizontally, so that the rivet is heat-treated by the induction heating coil 3. After the moving frame 7 passes through the induction heating coil 3, the rivet is quenched. When the work is finished, the moving frame 7 will be above the cooling box 11. As the moving frame 7 moves, the horizontal plate 10 will enter the abutment block 12 and move along with the two threaded sleeves 9 under the pressure. During the movement, the first spring rod 14 will retract. Since the two threaded sleeves 9 cannot rotate, the two first threaded rods 8 will rotate relative to each other with the two load-bearing plates 13 under the engagement of the threads. The end of the load-bearing plate 13 away from the first threaded rod 8 will rotate downward. The rivets located in the moving frame 7 will fall from the gap between the ends of the two load-bearing plates 13 into the cooling box 11. No manual unloading is required, and the unloading is automatic, avoiding the safety hazard of manual burns.

[0028] Then, during the repositioning process of the movable frame 7, the pressure exerted by the block 12 on the horizontal plate 10 will gradually disappear, and the two threaded sleeves 9 will gradually move and reset under the elastic potential energy of the first spring rod 14. As a result, the two load-bearing plates 13 will also gradually rotate and reset to a horizontally level state again.

[0029] A second spring rod 16 is fixedly installed on the surface of the connecting plate 6. A baffle 17 is fixedly installed at one end of the second spring rod 16. The length of the baffle 17 is greater than the width of the moving frame 7. The upper surface of the baffle 17 slides in contact with the lower surface of the two load-bearing plates 13. The second spring rod 16 is controlled to retract by a pressing component. The pressing component includes two L-shaped pressing rods 18 that are symmetrically fixedly installed on the upper surface of the moving frame 7. Both pressing rods 18 are located on the moving path of the baffle 17.

[0030] In the initial state, the upper surface of the baffle 17 will abut against the lower surface of the two load-bearing plates 13, thereby restricting the downward rotation of the two load-bearing plates 13 and preventing the number of rivets inserted into the moving frame 7 from being too large, which would cause the two load-bearing plates 13 to rotate downward under the force of the rivets.

[0031] When the moving frame 7 passes through the induction heating coil 3, as the moving frame 7 moves, the baffle 17 will first abut against the two abutment rods 18, the second spring rod 16 will retract, and the baffle 17 will move under the pressure until it is no longer below the two load-bearing plates 13. Then the horizontal plate 10 will move to abut against the abutment block 12, and then the two load-bearing plates 13 will rotate.

[0032] Inclined plates 19 are fixedly installed on both the left and right side walls inside the cooling box 11, and a through opening 20 for rivets to pass through is formed between the two inclined plates 19.

[0033] The rivets that fall from the moving frame 7 will slide down the surface of the two inclined plates 19 to the bottom of the cooling box 11 through the opening 20. The purpose of the two inclined plates 19 is to prevent water from splashing upwards when the rivets fall into the water in the cooling box 11.

[0034] A second threaded rod 21 is horizontally rotatably installed inside the cooling box 11. Multiple baffles 22 are fixedly installed on the surface of the second threaded rod 21. A mounting groove is horizontally opened on the wall of the rectangular groove. One end of the second threaded rod 21 passes through the mounting groove. A mounting block is fixedly installed on the lower surface of the slider 5. A fixing rod 23 is fixedly installed on the surface of the mounting block. A threaded groove 24 is horizontally opened on one end of the fixing rod 23. One end of the second threaded rod 21 is threadedly installed in the threaded groove 24.

[0035] When the slider 5 moves, it moves along with the fixed rod 23. Since the fixed rod 23 cannot rotate, the second threaded rod 21 rotates with the multiple baffles 22 due to the engagement of the threaded groove 24 and the threads on the surface of the second threaded rod 21. This agitates the cooling water in the cooling tank 11, preventing a vapor film from forming rapidly around the rivet if the cooling water is still when the rivet is immersed in water for quenching. This vapor film has low thermal conductivity and hinders further heat dissipation, resulting in significant differences in cooling rates at different parts of the rivet and potentially causing inconsistent local structural transformations. Furthermore, the agitation keeps the cooling water flowing. Compared to still water, flowing water has a stronger heat exchange capacity. On one hand, the water flow can carry away the heat emitted by the rivet more quickly, accelerating the process of cooling the rivet from a high temperature to a low temperature, shortening the quenching cooling time, and improving production efficiency. On the other hand, the continuous water flow can maintain a larger temperature difference between the cooling water and the rivet. According to the principle of heat transfer, a larger temperature difference can promote more efficient heat transfer from the rivet to the water, further accelerating the cooling rate.

[0036] In this utility model, after the moving frame 7 and the two load-bearing plates 13 pass through the induction heating coil 3 with multiple rivets, the moving frame 7 will be above the cooling box 11, and at this time the two load-bearing plates 13 will rotate relative to each other, so that the heat-treated rivets can automatically fall into the cooling box 11 without manual unloading, which avoids the safety hazard of manual burns.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fully automatic local heat treatment device for the production of all-iron rivets, comprising a platform (1), characterized in that, An induction heater (2) is fixedly installed on the upper surface of the platform (1). An induction heating coil (3) is installed on the surface of the induction heater (2). A rectangular groove is opened on the upper surface of the platform (1). A reciprocating screw (4) is horizontally rotatably installed in the rectangular groove. A slider (5) is threaded onto the reciprocating screw (4). A rectangular moving frame (7) is fixedly installed on the upper surface of the slider (5) through an L-shaped connecting plate (6). Two first threaded rods (8) with opposite thread directions are symmetrically and horizontally rotatably installed at the bottom of the moving frame (7). A threaded sleeve (9) is threaded onto the first threaded rod (8). A horizontal plate (10) is fixedly installed between the two threaded sleeves (9). A load-bearing plate (13) is fixedly sleeved on the first threaded rod (8). The horizontal plate (10) is fixedly connected to the moving frame (7) through a first spring rod (14). The reciprocating screw (4) is controlled to rotate by a drive assembly. The platform (1) has an installation opening on its upper surface. A cooling box (11) is fixedly installed in the installation opening. The cooling box (11) is filled with cooling water. A U-shaped abutment (12) is fixedly installed on the upper surface of the cooling box (11) by an L-shaped rod. The abutment (12) corresponds to the position of the horizontal plate (10).

2. The fully automatic local heat treatment device for the production of all-iron rivets according to claim 1, characterized in that, The drive assembly includes a drive motor (15) fixedly installed on one side of the platform (1), and the output shaft of the drive motor (15) is fixedly connected to the reciprocating lead screw (4).

3. The fully automatic local heat treatment device for the production of all-iron rivets according to claim 1, characterized in that, A second spring rod (16) is fixedly installed on the surface of the connecting plate (6). A baffle (17) is fixedly installed at one end of the second spring rod (16). The length of the baffle (17) is greater than the width of the moving frame (7). The upper surface of the baffle (17) slides in contact with the lower surfaces of the two load-bearing plates (13). The second spring rod (16) is controlled to retract by a pressing component.

4. The fully automatic local heat treatment device for the production of all-iron rivets according to claim 3, characterized in that, The pressing component includes two L-shaped abutment rods (18) that are symmetrically fixedly installed on the upper surface of the movable frame (7), and both abutment rods (18) are located on the moving path of the baffle (17).

5. The fully automatic local heat treatment device for the production of all-iron rivets according to claim 1, characterized in that, The cooling box (11) has inclined plates (19) fixedly installed on both the left and right side walls, and a through-hole (20) for rivets to pass through is formed between the two inclined plates (19).

6. The fully automatic local heat treatment device for the production of all-iron rivets according to claim 1, characterized in that, A second threaded rod (21) is horizontally rotatably installed inside the cooling box (11). Multiple baffles (22) are fixedly installed on the surface of the second threaded rod (21). An installation groove is horizontally opened on the wall of the rectangular groove. One end of the second threaded rod (21) passes through the installation groove. An installation block is fixedly installed on the lower surface of the slider (5). A fixing rod (23) is fixedly installed on the surface of the installation block. A threaded groove (24) is horizontally opened on one end of the fixing rod (23). One end of the second threaded rod (21) is threadedly installed in the threaded groove (24).

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