Multi-station nut cold header

Abstract

This invention relates to the field of cold heading machines, specifically to a multi-station nut cold heading machine. It includes a power module and a machine body fixedly connected to it, with multiple sets of circular grooves inside. It also includes a hollow elastic push rod disposed within the circular grooves. The cleaning mechanism includes a disc fixedly connected to one end of the hollow elastic push rod. A rotating plate is rotatably connected to one side of the disc, and multiple sets of second magnetic strips are equidistantly mounted around the surface of the rotating plate. The heating and stirring component includes a heating and stirring tube, which is rotatably connected to the inner wall of an oil tank via a rotating shaft. Drive blades are fixedly installed on the inner wall of the heating and stirring tube. This invention, through the coordinated operation of various components, cleans debris from inside the mold while simultaneously ejecting the stamped workpiece, and cools the interior of the mold, extending its service life. This ensures no debris residue remains inside the mold, guaranteeing the normal operation of the cold heading machine's ejection mechanism and ensuring work efficiency.

Description

Technical Field

[0001] This invention relates to the field of cold heading machines, and more specifically to a multi-station nut cold heading machine. Background Technology

[0002] A cold heading machine is a device that cuts and cold-extrudes various processed metal wires, causing the metal wires to be cold-headed into shape in a mold. It is used to process various standard and non-standard fasteners and automotive and motorcycle parts, and its applications are becoming increasingly widespread. It is mainly composed of several parts, such as a frame, transmission system, cold heading head, feeding system and cooling system, which work together to complete the processing of the workpiece.

[0003] In the process of using existing cold heading machines, the molds used for stamping and forming will have residual debris from the stamped workpiece inside due to prolonged use. This will cause the ejector bar of the cold heading machine to malfunction, affecting production efficiency. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a multi-station nut cold heading machine, which can effectively solve the problem that the inside of the mold will have residual debris of the stamped workpiece, causing the ejector rod to malfunction.

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

[0006] This invention provides a multi-station nut cold heading machine, comprising a power module and a machine body fixedly connected thereto, the machine body having multiple sets of circular grooves inside. A conveying pipe is fixedly installed on the upper surface of the machine body, and the output end of the conveying pipe is connected to an oil tank. A hollow elastic push rod is disposed inside the circular grooves, and an absorption component is provided below the machine body. A vortex tube is fixedly installed inside the hollow elastic push rod. A cleaning mechanism is disposed inside the circular grooves. The cleaning mechanism includes a disc fixedly connected to one end of the hollow elastic push rod, a rotating plate rotatably connected to one side of the disc, and multiple sets of second magnetic strips are equidistantly mounted around the surface of the rotating plate. A heating and stirring component is used in conjunction with the vortex tube, and the hot gas discharged from the vortex tube heats and stirs the lubricating oil in the oil tank.

[0007] Furthermore, multiple sets of first magnetic strips are installed around the inner wall of the circular groove, and the inner wall of the circular groove is connected to the outside through openings.

[0008] Furthermore, a limiting block is fixedly installed on the outer surface of the hollow elastic push rod, and the limiting block slides in cooperation with the inner wall of the circular groove. A circular plate is sleeved on the surface of the hollow elastic push rod, and the surface of the circular plate is in contact with the inner wall of the circular groove.

[0009] Furthermore, the surface of the disc has multiple sets of circular holes and multiple sets of cooling holes, which are connected to the interior of the hollow elastic push rod, and the outlet of the cooling hole has an arc-shaped structure.

[0010] Furthermore, the rotating plate is rotatably connected to the hollow elastic push rod via a reset bearing, and multiple sets of through holes are formed through the surface of the rotating plate, with the through holes and the round holes being staggered.

[0011] Furthermore, the absorbent includes a cleaning box fixedly installed on the lower surface of the machine body. One side of the cleaning box is connected to a connecting pipe, and the connecting pipe is connected to a circular groove through a pipe. The other side of the cleaning box is connected to an induced draft fan, and the output end of the induced draft fan is connected to a connecting pipe.

[0012] Furthermore, the input end of the vortex tube is connected to the output end of the connecting pipe through a first flexible hose, and the hot outlet end of the vortex tube is connected to the delivery pipe through a second flexible hose.

[0013] Furthermore, one side of the oil tank is connected to multiple sets of equally spaced nozzles, and the nozzles are located directly above the circular groove.

[0014] Furthermore, the second magnetic strip is installed in a staggered manner with the first magnetic strip, and the opposing surfaces of the second magnetic strip and the first magnetic strip are of the same pole.

[0015] Furthermore, the heating and stirring component includes an internal heating and stirring tube disposed in the oil tank. The heating and stirring tube is rotatably connected to the inner wall of the oil tank via a rotating shaft, and the heating and stirring tube is connected to the output end of the conveying pipe. A drive blade is fixedly installed on the inner wall of the heating and stirring tube.

[0016] The technical solution provided by this invention has the following advantages compared with the known prior art:

[0017] This invention, through the setting of a cleaning mechanism and its cooperation with other components, can clean the residual debris inside the mold while pushing out the stamped workpiece during the cold heading process, and can also cool the inside of the mold to avoid excessive temperature inside the mold, which would reduce its service life. This ensures that there is no debris residue inside the mold, and guarantees that the ejector mechanism of the cold heading machine can work normally, thus ensuring work efficiency. Attached Figure Description

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

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of one side of the body structure in this invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the body of the present invention;

[0023] Figure 5 In this invention Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 6 This is a schematic diagram showing the separation of the cleaning component structure in this invention;

[0025] Figure 7 This is a schematic diagram showing the installation of the heating and stirring component inside the oil tank in this invention;

[0026] Figure 8 This is a schematic diagram of the internal structure of the fuel tank in this invention;

[0027] Figure 9 This is a schematic diagram showing the installation positions of the first and second magnetic strips in this invention.

[0028] The labels in the diagram represent: 1. Power module; 2. Body; 201. First magnetic strip; 202. Connecting hole; 3. Hollow elastic push rod; 301. Limiting block; 302. Circular plate; 4. Cleaning mechanism; 401. Disc; 4011. Circular hole; 4012. Cooling hole; 402. Rotating plate; 4021. Through hole; 403. Second magnetic strip; 404. Reset bearing; 5. Absorption component; 501. Cleaning box; 502. Connecting pipe; 503. Exhaust fan; 504. Connecting pipe; 6. Vortex tube; 601. First flexible hose; 602. Second flexible hose; 7. Conveying pipe; 8. Oil tank; 801. Nozzle; 9. Heating and stirring component; 901. Heating and stirring tube; 902. Rotating shaft; 903. Drive blade. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] The present invention will be further described below with reference to embodiments.

[0031] Example: Multi-station nut cold heading machine, such as Figures 1-9 As shown, the device includes a power module 1 and a body 2 fixedly connected to it, which has multiple sets of circular grooves inside. These circular grooves can position and guide the workpiece being processed. Multiple sets of first magnetic strips 201 are installed around the inner wall of the circular grooves. There are three sets of first magnetic strips 201, which are arc-shaped and equidistantly distributed on the inner wall of the circular grooves. By setting the first magnetic strips 201, the magnetic force they generate can cooperate with other components to achieve specific functions.

[0032] The inner wall of the circular groove is connected to the outside through a connecting hole 202, and the inside of the connecting hole 202 is equipped with a dustproof mesh (existing product, not shown in the figure) to prevent external dust from entering the inside of the circular groove. The connecting hole 202 is provided so that the circular groove can be connected to the outside.

[0033] It also includes a hollow elastic push rod 3 set inside the circular groove. By setting the hollow elastic push rod 3, the stamped workpiece can be pushed out and reset at the same time, which is convenient for the next action. A limit block 301 is fixedly installed on the outer surface of the hollow elastic push rod 3, and the limit block 301 slides with the inner wall of the circular groove. By setting the limit block 301, the hollow elastic push rod 3 can be limited and guided when it moves, so as to prevent it from rotating during the operation.

[0034] The hollow elastic ejector rod 3 has a circular plate 302 sleeved on its surface, and the surface of the circular plate 302 is in contact with the inner wall of the circular groove. By setting the circular plate 302, the gas inside the circular groove can be squeezed when it moves synchronously with the hollow elastic ejector rod 3, so that the gas can be ejected from the circular hole 4011 and the through hole 4021 to clean the debris inside the mold. At the same time, it acts on the surface of the workpiece being stamped, making it easier for it to move out of the circular groove.

[0035] See attached document Figure 1 - Appendix Figure 9 A cleaning mechanism 4 is installed inside the circular groove. The cleaning mechanism 4 includes a disc 401 fixedly connected to one end of a hollow elastic push rod 3. By setting the disc 401, its movement can clean the inside of the circular groove and accelerate the removal of the stamped part. A rotating plate 402 is rotatably connected to one side of the disc 401. The rotating plate 402 is rotatably connected to the hollow elastic push rod 3 through a reset bearing 404. By setting the rotating plate 402, its rotation can connect the separated circular grooves. At the same time, the reset bearing 404 can reset the rotating plate 402.

[0036] The disc 401 has multiple sets of circular holes 4011 through its surface to facilitate the passage of gas. The disc 401 also has multiple sets of cooling holes 4012 through its surface. The cooling holes 4012 are connected to the interior of the hollow elastic push rod 3, and the outlet of the cooling holes 4012 is an arc-shaped structure. By setting the cooling holes 4012 with an arc-shaped outlet, the blown air can better act on the inner wall of the circular groove, causing the temperature of the inner wall of the circular groove to drop rapidly and extending its service life.

[0037] The rotating plate 402 has multiple through holes 4021 extending through its surface. These through holes 4021 are offset from the circular holes 4011, allowing for gas flow. Multiple sets of second magnetic strips 403 are equidistantly mounted around the surface of the rotating plate 402. These second magnetic strips 403 are offset from the first magnetic strips 201, and their opposing surfaces are of the same pole. This arrangement of the second magnetic strips 403 and their offset mounting with the first magnetic strips 201 is illustrated in the attached diagram. Figure 9 Thus, when the hollow elastic push rod 3 drives the second magnetic strip 403 to move synchronously to the first magnetic strip 201, the repulsive force between the two enables the rotating plate 402 to rotate, thereby connecting the round hole 4011 and the through hole 4021.

[0038] See attached document Figure 1 - Appendix Figure 9 The machine body 2 has an absorption component 5 at its bottom. When the gas is blown to clean the inside of the circular groove, the absorption component 5 generates suction, which allows the debris inside the circular groove to be sucked up and collected, preventing it from falling to various places. The absorption component 5 includes a cleaning box 501 fixedly installed on the lower surface of the machine body 2. By setting the cleaning box 501, the air with debris can be filtered and cleaned, so that the debris can be placed inside the cleaning box 501 for subsequent processing.

[0039] The cleaning box 501 is connected to a connecting pipe 502 on one side. By setting the connecting pipe 502, it is ensured that the absorber 5 can continue to operate when there is a workpiece being pressed inside the circular groove. The connecting pipe 502 is connected to the circular groove through a pipe, and the pipe is stepped. By setting the stepped pipe, it is ensured that after the debris is sucked in, the debris cannot move in the opposite direction and re-enter the circular groove.

[0040] The other side of the cleaning box 501 is connected to an exhaust fan 503. By setting the exhaust fan 503, the debris inside the circular groove can be sucked into the cleaning box 501 by the suction force it generates. The output end of the exhaust fan 503 is connected to a connecting pipe 504, which is used to transport the air discharged by the exhaust fan 503.

[0041] The hollow elastic push rod 3 has a vortex tube 6 fixedly installed inside. The vortex tube 6 is an existing product. Its working principle is that compressed air is input into its interior and flows to one side in a high-speed rotating manner. During the movement of this airflow, the outer layer of air will heat up, and conversely, the inner layer of air will cool down (the temperature is proportional to the flow rate). When it moves to one end, the cold air will flow back in the opposite direction along the center of the vortex to form a cooling source, which will not be elaborated here.

[0042] It is worth noting that the cold end outlet of the vortex tube 6 corresponds to the direction of the disc 401, so that the cold air at the cold end outlet can be discharged to the outside and cool the inside of the groove.

[0043] The input end of the vortex tube 6 is connected to the output end of the connecting pipe 504 through the first flexible hose 601. By setting the first flexible hose 601, the air discharged by the induced draft fan 503 can be transported to the interior of the vortex tube 6. The hot outlet end of the vortex tube 6 is connected to the conveying pipe 7 through the second flexible hose 602. By setting the second flexible hose 602, the hot air inside the vortex tube 6 can be transported to the interior of the conveying pipe 7.

[0044] The upper surface of the body 2 is fixedly equipped with a conveying pipe 7, which can convey the hot air generated inside the vortex tube 6. The output end of the conveying pipe 7 is connected to an oil tank 8, which is used to store lubricating oil. One side of the oil tank 8 is connected to multiple sets of equally spaced nozzles 801, and the nozzles 801 are located directly above the circular groove. By setting the nozzles 801, the lubricating oil can flow to the surface of the stamped part.

[0045] See attached document Figure 1 - Appendix Figure 9 By installing a heating and stirring element 9 inside the oil tank 8, the lubricating oil inside the oil tank 8 can be heated and stirred, slowing down the oxidation and deterioration process of the lubricating oil and increasing its service life. The heating and stirring element 9 includes a heating and stirring tube 901, which heats and stirs the lubricating oil.

[0046] The heating and stirring tube 901 is rotatably connected to the inner wall of the oil tank 8 via a rotating shaft 902. By setting the rotating shaft 902, it is ensured that the heating and stirring tube 901 will not interfere with the oil tank 8 when rotating, thus preventing it from being unable to rotate. The heating and stirring tube 901 is connected to the output end of the conveying pipe 7, and the other end of the heating and stirring tube 901 is connected to an exhaust port. Through the connection between the two, hot air can enter the interior of the heating and stirring tube 901. A drive blade 903 is fixedly installed on the inner wall of the heating and stirring tube 901. By setting the drive blade 903, the heating and stirring tube 901 can be driven to rotate under the action of hot air, thereby agitating the lubricating oil.

[0047] Specifically, during the operation of the cold heading machine, the power module 1 is driven by an external power source to perform an action, which causes the hollow elastic push rod 3 located inside the circular groove to be squeezed and moved to one side of the circular groove. While the hollow elastic push rod 3 is moving, it will drive the disc 401 and the rotating plate 402 to move synchronously. When the rotating plate 402 moves to the position of the first magnetic strip 201, it will start to rotate under the action of the repulsive force between the first magnetic strip 201 and the second magnetic strip 403, so that the circular hole 4011 and the through hole 4021 begin to connect.

[0048] As the hollow elastic push rod 3 continues to move, the circular plate 302 will move to the left side of the connecting hole 202, so that a sealed cavity is formed between the circular plate 302 and the rotating plate 402. Then, during the movement of the hollow elastic push rod 3, the gas inside the sealed cavity will be squeezed out through the circular hole 4011 and the through hole 4021 by the circular plate 302, which will blow on the inner wall of the circular groove and act on the surface of the workpiece being stamped, thereby cleaning the inside of the circular groove and ensuring that the hollow elastic push rod 3 can work normally.

[0049] While the hollow elastic push rod 3 is in motion, the induced draft fan 503 is controlled by an external power source to operate, causing the suction force generated by the fan to draw the debris inside the circular groove from the inside of the pipe into the cleaning box 501. The gas processed by the cleaning box 501 is discharged through the outlet of the induced draft fan 503, and then enters the vortex tube 6 through the connecting pipe 504 and the first flexible hose 601. The gas entering the vortex tube 6 generates hot and cold air under its action. The cold air end of the vortex tube 6 faces the disc 401, and the cold air discharged from the vortex tube 6 is discharged through the cooling hole 4012. At the same time, the cold air is compressed by the hollow elastic push rod 3, causing the cold air to be quickly sprayed out from the cooling hole 4012 and act on the inner wall of the circular groove, so that the inside of the circular groove can be cooled quickly.

[0050] The hot air generated by the vortex tube 6 is delivered to the inside of the delivery pipe 7 through the second hose 602, and then enters the heating and stirring tube 901 that is rotatably installed inside the oil tank 8 through the delivery pipe 7. It acts on the drive blades 903 installed on the inner wall of the heating and stirring tube 901, causing the heating and stirring tube 901 to start rotating, so as to stir and heat the lubricating oil inside the oil tank 8, thereby slowing down the oxidation and deterioration process of the lubricating oil.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station nut cold heading machine, comprising a power module (1) and a machine body (2) fixedly connected thereto and having multiple sets of circular grooves inside, wherein a conveying pipe (7) is fixedly installed on the upper surface of the machine body (2), and the output end of the conveying pipe (7) is connected to an oil tank (8), characterized in that, Also includes: A hollow elastic push rod (3) is set inside the circular groove, and an absorber (5) is provided below the body (2). A vortex tube (6) is fixedly installed inside the hollow elastic push rod (3). A cleaning mechanism (4) is provided inside the circular groove. The cleaning mechanism (4) includes a disc (401) fixedly connected to one end of a hollow elastic top rod (3). A rotating plate (402) is rotatably connected to one side of the disc (401). Multiple sets of second magnetic strips (403) are equidistantly mounted around the surface of the rotating plate (402). And a heating and stirring component (9) used in conjunction with the vortex tube (6) drives the heating and stirring tube (901) inside the oil tank (8) to rotate through the hot gas discharged from the vortex tube (6); The surface of the disc (401) is provided with multiple sets of circular holes (4011) and multiple sets of cooling holes (4012) are provided on the surface of the disc (401). The cooling holes (4012) are connected to the interior of the hollow elastic push rod (3), and the outlet of the cooling holes (4012) is an arc-shaped structure. The rotating plate (402) is rotatably connected to the hollow elastic push rod (3) through the reset bearing (404). Multiple sets of through holes (4021) are opened through the surface of the rotating plate (402), and the through holes (4021) and the round holes (4011) are misaligned. Multiple sets of first magnetic strips (201) are installed around the inner wall of the circular groove. The absorber (5) includes a cleaning box (501) fixedly installed on the lower surface of the body (2). One side of the cleaning box (501) is connected to a connecting pipe (502), and the connecting pipe (502) is connected to a circular groove through a pipe. The other side of the cleaning box (501) is connected to an exhaust fan (503), and the output end of the exhaust fan (503) is connected to a connecting pipe (504).

2. The multi-station nut cold heading machine according to claim 1, characterized in that, The inner wall of the circular groove is connected to the outside through a connecting hole (202).

3. The multi-station nut cold heading machine according to claim 2, characterized in that, The outer surface of the hollow elastic top rod (3) is fixedly installed with a limiting block (301), and the limiting block (301) slides with the inner wall of the circular groove. The surface of the hollow elastic top rod (3) is sleeved with a circular plate (302), and the surface of the circular plate (302) is in contact with the inner wall of the circular groove.

4. The multi-station nut cold heading machine according to claim 1, characterized in that, The input end of the vortex tube (6) is connected to the output end of the connecting pipe (504) through the first flexible hose (601), and the hot outlet end of the vortex tube (6) is connected to the delivery pipe (7) through the second flexible hose (602).

5. The multi-station nut cold heading machine according to claim 1, characterized in that, One side of the oil tank (8) is connected to a plurality of equally spaced nozzles (801), and the nozzles (801) are located directly above the circular groove.

6. The multi-station nut cold heading machine according to claim 1, characterized in that, The second magnetic strip (403) is installed in a staggered manner with the first magnetic strip (201), and the opposite surfaces of the second magnetic strip (403) and the first magnetic strip (201) are of the same pole.

7. The multi-station nut cold heading machine according to claim 1, characterized in that, The heating and stirring component (9) includes an internal heating and stirring tube (901) located in the oil tank (8). The heating and stirring tube (901) is rotatably connected to the inner wall of the oil tank (8) via a rotating shaft (902), and the heating and stirring tube (901) is connected to the output end of the conveying pipe (7). A drive blade (903) is fixedly installed on the inner wall of the heating and stirring tube (901).

Images