Cold header for screw manufacturing

Abstract

The utility model discloses a cold header for manufacturing screws, which relates to the technical field of cold headers for manufacturing screws and comprises a casing and a fixed die seat. Fixed rails are fixed to the front side and the rear side of the interior of the machine shell, the inner side faces of the fixed rails are in sliding connection with the end of the movable mold base, the fixed mold base is fixedly installed in the machine shell, the position of the fixed mold base corresponds to the position of the movable mold base, and motors are fixed to the front side face and the rear side face of the machine shell. An output shaft of the motor and the middle of the outer side face of the disc are fixedly installed, and the top end of the inner side face of the disc and the end of the driving rod are rotatably installed. The problem of abrasion damage caused by heat accumulation is solved, and meanwhile, the problem that the surfaces of the screws are abraded due to clamping force can be solved through an electromagnetic adsorption conveying mode.

Description

Technical Field

[0001] This utility model relates to the field of cold heading machine technology, specifically a cold heading machine for screw manufacturing. Background Technology

[0002] Cold heading machines are specialized equipment used primarily for the mass production of fasteners such as nuts and bolts. As an important piece of equipment in metal processing, cold heading machines have become crucial in the metal processing field due to their high efficiency, energy saving, high precision, and wide applicability, bringing significant economic and technological benefits to the manufacturing industry. Traditional cold heading machines generate a large amount of heat during use, and failure to dissipate this heat in a timely manner can damage the mold. Furthermore, the lack of a circulation structure leads to a significant waste of coolant during the cooling process. Additionally, the clamping and fixing method used when conveying screws can easily cause wear and damage to their surfaces. Therefore, we propose a cold heading machine for screw preparation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cold heading machine for screw manufacturing. The cold heading machine uses a cooling nozzle with adjustable position and angle to accurately cool the hot parts of the machine, thus solving the problem of wear and damage caused by heat accumulation. At the same time, the electromagnetic adsorption conveying method used can also prevent the screw surface from being worn by clamping force, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cold heading machine for screw manufacturing, comprising a machine housing and a fixed mold base;

[0005] The housing has fixed rails on both the front and rear sides inside. The inner side of the fixed rails is slidably connected to the end of the moving mold base. The fixed mold base is fixedly installed inside the housing, and the fixed mold base is positioned corresponding to the moving mold base. Motors are fixed on both the front and rear sides of the housing. The output shaft of the motor is fixedly installed to the middle of the outer side of the disc. The top of the inner side of the disc is rotatably installed to the end of the drive rod. The other end of the drive rod is rotatably installed to one side of the left side of the moving mold base. Two electric push rods with corresponding front and rear sides are provided on the right side inside the housing. Fixed seats are installed on the left side of the two electric push rods. Ejection rods that are slidably installed with ejection holes on the surface of the fixed mold base are evenly fixed on the left side of the fixed seats. A cooling unit is provided inside the housing. A conveying unit is provided on the side of the fixed seats.

[0006] It also includes a controller and a discharge shell. The controller is located on the top surface of the housing, and the discharge shell is installed on the rear side of the housing. The input ends of the motor and the electric push rod are electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external power supply.

[0007] The motor is started to rotate the disc, which, together with the drive rod, causes the moving mold base to overlap with the fixed mold base to perform cold heading of the screw. After the machining is completed, the electric push rod is activated to push the screw out of the fixed mold base for subsequent machining.

[0008] Furthermore, the cooling unit includes a coolant box, a coolant pump, a water distribution pipe, a solenoid valve, and a cooling nozzle. The coolant box is fixed to the bottom surface inside the housing. The coolant pump is installed on the rear side of the housing. The inlet pipe of the coolant pump is located inside the coolant box, and the outlet pipe of the coolant pump is connected to the inlet of the water distribution pipe. Solenoid valves are evenly arranged on the surface of the water distribution pipe. The outlet of the solenoid valve is connected to the cooling nozzle through the pipe body. The input terminals of the coolant pump and the solenoid valves are electrically connected to the output terminal of the controller. When the coolant pump is started, the coolant inside the coolant box is sprayed through the cooling nozzle to the heat-generating position of the device, which can effectively improve the heat dissipation effect. The dripping coolant falls into the coolant box for collection.

[0009] Furthermore, the cooling unit also includes a rotating seat, a fixed rod, and a telescopic rod. The fixed rod is fixed inside the housing, and the rotating seat is rotatably installed in the rotating groove on the surface of the fixed rod. The telescopic rod is fixedly installed on the outer side of the rotating seat. The bottom end of the telescopic rod is connected to the top surface of the cooling nozzle, and the two sides of the top surface of the fixed rod are respectively connected to the bottom ends of the two sides of the water distribution pipe. The rotating seat on the outside of the fixed rod, in conjunction with the telescopic rod, adjusts the angle and position of the cooling nozzle. This allows for accurate heat dissipation of the heat-generating areas, preventing overheating that could lead to decreased precision of the device and damage to the mold.

[0010] Furthermore, the cooling unit also includes a frame, a filter screen, and a frame slot. The frame slot is located on the front side of the housing. The frame is slidably installed inside the frame slot, and the filter screen is placed inside the frame. The filter screen inside the frame can filter out impurities such as iron filings contained in the coolant, which facilitates the subsequent recycling of the coolant and reduces the operating cost of the device.

[0011] Furthermore, the conveying unit includes a top frame, an adjusting groove, an adjusting bracket, a pneumatic push rod, an electric telescopic rod, and an electromagnet. The adjusting groove is located on the right side of the fixed base, and the adjusting bracket is slidably installed inside the adjusting groove. The pneumatic push rod is fixed to the rear end of the right side of the fixed base, and the front end of the pneumatic push rod is connected to the rear side of the adjusting bracket. The top frame is fixed to the top of the adjusting bracket, and the electric telescopic rod is evenly fixed to the top surface of the top frame. An electromagnet is installed at the bottom end of the electric telescopic rod. The electromagnet is positioned corresponding to the stripping rod. By using the stripping rod in conjunction with the electric telescopic rod, the screws can be conveyed between multiple molds while stripping. The electromagnet also prevents damage to the screw surface caused by traditional clamping and fixing.

[0012] Furthermore, it also includes a liquid level sensor, which is installed at the bottom of the front side of the housing. The output of the liquid level sensor is electrically connected to the input of the controller. The liquid level sensor can detect the liquid level inside the coolant box, thereby reminding personnel to add coolant when the liquid level is low.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The cold heading machine for preparing this screw has the following advantages:

[0014] 1. The angle and position of the cooling nozzle are adjusted by rotating the outer side of the fixed rod and using the telescopic rod. The liquid pump is started to spray the coolant inside the coolant box through the cooling nozzle to the heat-generating position of the device. This can accurately dissipate heat from the heat-generating position to prevent overheating from causing the device to deteriorate in precision and the mold to be damaged. This can effectively improve the heat dissipation effect.

[0015] 2. The filter screen inside the frame can filter out impurities such as iron filings in the coolant, and the dripping coolant falls into the coolant box for collection, which facilitates the subsequent recycling of the coolant and reduces the operating cost of the device.

[0016] 3. By using a stripper rod in conjunction with an electric telescopic rod, screws can be conveyed between multiple molds while stripping. Furthermore, the electromagnet used can prevent damage to the screw surface caused by traditional clamping and fixing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the casing of this utility model;

[0019] Figure 3 This is a schematic diagram of the cooling unit structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the conveying unit structure of this utility model;

[0021] Figure 5 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0022] In the diagram: 1. Housing, 2. Cooling unit, 21. Coolant box, 22. Liquid pump, 23. Water distribution pipe, 24. Solenoid valve, 25. Cooling nozzle, 26. Rotary seat, 27. Fixed rod, 28. Telescopic rod, 29. Frame, 210. Filter screen, 211. Frame groove, 3. Conveying unit, 31. Top frame, 32. Adjustment groove, 33. Adjustment frame, 34. Pneumatic push rod, 35. Electric telescopic rod, 36. Electromagnet, 4. Fixed rail, 5. Motor, 6. Disc, 7. Drive rod, 8. Moving mold seat, 9. Fixed mold seat, 10. Electric push rod, 11. Fixed seat, 12. Stripping rod, 13. Liquid level sensor, 14. Controller, 15. Discharge shell. 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. 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.

[0024] Please see Figure 1-5 This embodiment provides a technical solution: a cold heading machine for screw manufacturing, including a machine housing 1 and a fixed mold base 9;

[0025] Machine housing 1: Fixed rails 4 are fixed on both the front and rear sides inside the housing. The inner side of the fixed rails 4 is slidably connected to the end of the moving mold base 8. The fixed mold base 9 is fixedly installed inside the machine housing 1, and the fixed mold base 9 corresponds to the moving mold base 8. Motors 5 are fixed on both the front and rear sides of the machine housing 1. The output shaft of the motor 5 is fixedly installed to the middle of the outer side of the disc 6. The top of the inner side of the disc 6 is rotatably installed to the end of the drive rod 7. The other end of the drive rod 7 is rotatably installed to one side of the left side of the moving mold base 8. Two electric push rods 10 are provided on the right side inside the machine housing 1, corresponding to each other. Fixed seats 11 are installed on the left side of the two electric push rods 10. Ejection rods 12, which are slidably installed with the ejection holes on the surface of the fixed mold base 9, are evenly fixed on the left side of the fixed seats 11. The housing 1 houses a cooling unit 2, which includes a coolant box 21, a coolant pump 22, a water distribution pipe 23, a solenoid valve 24, and a cooling nozzle 25. The coolant box 21 is fixed to the bottom surface inside the housing 1. The coolant pump 22 is installed on the rear side of the housing 1. The inlet pipe of the coolant pump 22 is located inside the coolant box 21, and the outlet pipe of the coolant pump 22 is connected to the inlet of the water distribution pipe 23. Solenoid valves 24 are evenly distributed on the surface of the water distribution pipe 23. The outlet of the solenoid valve 24 is connected to the cooling nozzle 25 through the pipe body. The input terminals of the coolant pump 22 and the solenoid valves 24 are electrically connected to the output terminal of the controller 14. When the coolant pump 22 is activated, the coolant inside the coolant box 21 is sprayed through the cooling nozzle 25 onto the heat-generating parts of the device, which effectively improves the heat dissipation effect. The coolant falls into the coolant box 21 for collection. The cooling unit 2 also includes a rotating seat 26, a fixed rod 27, and a telescopic rod 28. The fixed rod 27 is fixed inside the housing 1. The rotating seat 26 is rotatably installed in the rotating groove on the surface of the fixed rod 27. The telescopic rod 28 is fixedly installed on the outer side of the rotating seat 26. The bottom end of the telescopic rod 28 is connected to the top surface of the cooling nozzle 25. The two sides of the top surface of the fixed rod 27 are respectively connected to the bottom ends of the two sides of the water distribution pipe 23. The rotating seat 26, which rotates on the outside of the fixed rod 27, works with the telescopic rod 28 to adjust the angle and position of the cooling nozzle 25. This allows for accurate heat dissipation of the heat-generating areas, preventing overheating that could lead to decreased precision and mold damage. The cooling unit 2 also includes a frame 29 and a heat exchanger. The device includes a filter screen 210 and a frame groove 211. The frame groove 211 is located on the front side of the housing 1. A frame 29 is slidably installed inside the frame groove 211, and the filter screen 210 is placed inside the frame 29. The filter screen 210 inside the frame 29 can filter impurities such as iron filings in the coolant, which facilitates the subsequent recycling of the coolant and reduces the operating cost of the device. A conveying unit 3 is provided on the side of the fixed base 11. The conveying unit 3 includes a top frame 31, an adjusting groove 32, an adjusting frame 33, a pneumatic push rod 34, an electric telescopic rod 35, and an electromagnet 36. The adjusting groove 32 is located on the right side of the fixed base 11, and the adjusting frame 33 is slidably installed inside the adjusting groove 32. The pneumatic push rod 34 is fixed to the rear end of the right side of the fixed base 11.The front end of the pneumatic push rod 34 is connected to the rear side of the adjusting frame 33. A top frame 31 is fixed to the top of the adjusting frame 33. Electric telescopic rods 35 are evenly fixed to the top surface of the top frame 31. An electromagnet 36 is installed at the bottom end of the electric telescopic rod 35. The electromagnet 36 is positioned corresponding to the stripper rod 12. By linking the stripper rod 12 with the electric telescopic rod 35, screws can be conveyed between multiple molds while stripping. Furthermore, the electromagnet 36 prevents damage to the screw surface caused by traditional clamping.

[0026] The system also includes a controller 14 and a discharge shell 15. The controller 14 is located on the top surface of the housing 1, and the discharge shell 15 is installed on the rear side of the housing 1. The input ends of the motor 5 and the electric push rod 10 are electrically connected to the output end of the controller 14. The input end of the controller 14 is electrically connected to the output end of an external power supply. When the motor 5 is started, the disc 6 rotates, which, together with the drive rod 7, causes the moving mold base 8 to overlap with the fixed mold base 9 to perform cold heading of the screw. After the machining is completed, the electric push rod 10 is started to push the screw out of the fixed mold base 9 for subsequent machining. The system also includes a liquid level sensor 13, which is installed at the bottom of the front side of the housing 1. The output end of the liquid level sensor 13 is electrically connected to the input end of the controller 14. The liquid level sensor 13 can detect the liquid level inside the coolant box 21, thereby reminding personnel to add coolant when the liquid level is low.

[0027] The working principle of the cold heading machine for screw preparation provided by this utility model is as follows: First, the mold is installed on the moving mold base 8 and the fixed mold base 9 respectively. The motor 5 is started to drive the disc 6 to rotate. With the help of the drive rod 7, the moving mold base 8 and the fixed mold base 9 are aligned to perform cold heading of the screw. At the same time, the rotating seat 26 on the outside of the fixed rod 27, together with the telescopic rod 28, adjusts the angle and position of the cooling nozzle 25. This can accurately dissipate heat from the heat-generating parts to prevent overheating from causing the device to deteriorate in precision and the mold to be damaged. The dripping coolant falls into the coolant box 21 for collection. The filter screen 210 inside the frame 29 can filter the coolant. Impurities such as iron filings in the coolant are filtered out to facilitate subsequent recycling and reduce the operating cost of the device. The installed liquid level sensor 13 can detect the liquid level inside the coolant box 21 and remind personnel to add coolant when the level is low. After cold heading, the electric telescopic rod 35 is activated to adjust the height of the electromagnet 36 so that it is magnetically fixed to the end of the screw. The electric push rod 10 drives the stripper rod 12 to move and push the screw out from the fixed mold base 9. At this time, the pneumatic push rod 34 is activated to transport the screw to the next mold. This process is repeated to complete the cold heading of the screw. Finally, the screw is discharged through the discharge shell 15 for easy collection.

[0028] It is worth noting that the controller 14 disclosed in the above embodiments is model YFC-37, while the liquid pump 22 can be freely configured according to the actual application scenario. It is recommended to use a circulating pump of model DLSB-5 / 10. The liquid level sensor 13 can be an ultrasonic liquid level sensor of model HC-CS8080, and the motor 5 can be a motor of model BY-6-25. The controller 14 controls the operation of the liquid pump 22, solenoid valve 24, pneumatic push rod 34, electric telescopic rod 35, electromagnet 36, motor 5, electric push rod 10, and liquid level sensor 13 using methods commonly used in the prior art.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cold heading machine for screw manufacturing, characterized in that: Includes housing (1) and fixed mold base (9); The housing (1) has fixed rails (4) on both the front and rear sides inside. The inner side of the fixed rails (4) is slidably connected to the end of the moving mold base (8). The fixed mold base (9) is fixedly installed inside the housing (1). The fixed mold base (9) is positioned opposite to the moving mold base (8). The housing (1) has motors (5) fixed on both the front and rear sides. The output shaft of the motor (5) is fixedly installed at the middle of the outer side of the disc (6). The top of the inner side of the disc (6) rotates with the end of the drive rod (7). The drive rod (7) is rotatably mounted on one side of the left side of the moving mold base (8). The right side inside the housing (1) is provided with two electric push rods (10) corresponding to each other. The left side of the two electric push rods (10) is provided with a fixed seat (11). The left side of the fixed seat (11) is uniformly fixed with a stripping rod (12) that is slidably mounted with the stripping hole on the surface of the fixed mold base (9). The inside of the housing (1) is provided with a cooling unit (2). The side of the fixed seat (11) is provided with a conveying unit (3). The system also includes a controller (14) and a discharge shell (15). The controller (14) is located on the top surface of the housing (1), and the discharge shell (15) is installed on the rear side of the housing (1). The input ends of the motor (5) and the electric push rod (10) are electrically connected to the output end of the controller (14), and the input end of the controller (14) is electrically connected to the output end of an external power supply.

2. The cold heading machine for screw manufacturing according to claim 1, characterized in that: The cooling unit (2) includes a coolant box (21), a liquid pump (22), a water distribution pipe (23), a solenoid valve (24), and a cooling nozzle (25). The coolant box (21) is fixed to the bottom surface inside the housing (1). The liquid pump (22) is installed on the rear side of the housing (1). The inlet pipe of the liquid pump (22) is located inside the coolant box (21). The outlet pipe of the liquid pump (22) is connected to the inlet of the water distribution pipe (23). Solenoid valves (24) are evenly arranged on the surface of the water distribution pipe (23). The outlet of the solenoid valve (24) is installed with the cooling nozzle (25) through the pipe body. The input ends of the liquid pump (22) and the solenoid valve (24) are electrically connected to the output end of the controller (14).

3. The cold heading machine for screw manufacturing according to claim 2, characterized in that: The cooling unit (2) also includes a rotating seat (26), a fixed rod (27), and a telescopic rod (28). The fixed rod (27) is fixed inside the housing (1). The rotating seat (26) is rotatably installed in the rotating groove on the surface of the fixed rod (27). The telescopic rod (28) is fixedly installed on the outer side of the rotating seat (26). The bottom end of the telescopic rod (28) is connected to the top surface of the cooling nozzle (25). The two sides of the top surface of the fixed rod (27) are respectively connected to the bottom ends of the two sides of the water distribution pipe (23).

4. The cold heading machine for screw manufacturing according to claim 1, characterized in that: The cooling unit (2) also includes a frame (29), a filter (210) and a frame groove (211). The frame groove (211) is opened on the front side of the housing (1). The frame (29) is slidably installed inside the frame groove (211), and the filter (210) is placed inside the frame (29).

5. A cold heading machine for screw manufacturing according to claim 1, characterized in that: The conveying unit (3) includes a top frame (31), an adjusting groove (32), an adjusting frame (33), a pneumatic push rod (34), an electric telescopic rod (35), and an electromagnet (36). The adjusting groove (32) is opened on the right side of the fixed base (11). The adjusting frame (33) is slidably installed inside the adjusting groove (32). The pneumatic push rod (34) is fixed to the rear end of the right side of the fixed base (11). The front end of the pneumatic push rod (34) is connected to the rear side of the adjusting frame (33). The top frame (31) is fixed at the top of the adjusting frame (33). The electric telescopic rod (35) is evenly fixed on the top surface of the top frame (31). The electromagnet (36) is installed at the bottom end of the electric telescopic rod (35). The position of the electromagnet (36) corresponds to that of the unloading rod (12).

6. A cold heading machine for screw manufacturing according to claim 1, characterized in that: It also includes a liquid level sensor (13), which is installed at the bottom of the front side of the housing (1), and the output of the liquid level sensor (13) is electrically connected to the input of the controller (14).

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