Screw multi-station cold heading device

Abstract

The utility model discloses a screw multi-station cold heading device which comprises a cold heading machine body, a multi-station female die and a multi-station stamping die, the multi-station female die and the multi-station stamping die are installed in the cold heading machine body, and a deoiling mechanism is arranged at the bottom in the cold heading machine body. And the deoiling mechanism comprises a group of guide plates, a deoiling outer cylinder, a circular sliding rail, a rotating inner cylinder, an annular rack, a driving motor, a driving gear, a notch and a discharging plate. The screw de-oiling device has the beneficial effects that a screw subjected to cold heading forming by the multi-station female die and the multi-station stamping die falls into the rotating inner cylinder, the driving motor can drive the rotating inner cylinder to rotate, and cold heading oil adhered to the surface of the screw is thrown into the de-oiling outer cylinder under the action of centrifugal force and is discharged through the oil discharge port, so that the separated cold heading oil is collected, and the service life of the screw is prolonged. And a centrifugal deoiling mode is adopted, deoiling of the screws is more thorough, the telescopic end of the servo air cylinder contracts to drive the conical baffle to jack up, the deoiled screws can be conveniently discharged from the bottom discharging plate, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of screw production, in particular to a multi-station cold heading device for screws. Background Art

[0002] A screw refers to a bolt, which is a tool for fastening machine parts step by step by using the physical and mathematical principles of the inclined plane circular rotation and friction of an object. Metric threads are measured in MM (millimeters), and its tooth tip angle is 60 degrees. Both American and British threads are measured in inches. The tooth tip angle of American threads is also 60 degrees, while the tooth tip angle of British threads is 55 degrees.

[0003] During the screw processing, cold heading forming treatment is required. In the existing patent with the application number CN202311705592.2, a multi-station cold heading machine for anti-vibration stainless steel screws is disclosed, which uses the back-and-forth vibration of a filter screen to remove the cold heading oil on the screws. When the filter screen flips towards the guide plate, the screws on the filter screen roll onto the guide plate for collection. However, by using the vibration method, the cold heading oil adhered to the screw surface cannot be effectively removed, and the device cannot collect the separated cold heading oil.

[0004] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model

[0005] Aiming at the above defects, the utility model provides a multi-station cold heading device for screws to solve the problem of cold heading oil separation in multi-station screw cold heading.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A multi-station cold heading device for screws includes a cold heading machine body, a multi-station female die and a multi-station punch die installed in the cold heading machine body. A deoiling mechanism is arranged at the bottom inside the cold heading machine body;

[0008] The deoiling mechanism includes a group of guide plates, a deoiling outer cylinder, a circular slide rail, a rotating inner cylinder, an annular rack, a driving motor, a driving gear, a notch and a blanking plate. The group of guide plates are inclined and installed on the inner wall of the cold heading machine body and are located below the multi-station female die and the multi-station punch die. The deoiling outer cylinder is installed at the bottom inside the cold heading machine body. The circular slide rail is installed at the upper end of the deoiling outer cylinder. The rotating inner cylinder is sleeved inside the deoiling outer cylinder, and the upper end is slidably installed on the circular slide rail. The annular rack is installed on the outer surface of the upper end of the rotating inner cylinder. The driving motor is installed on the left side of the upper end of the deoiling outer cylinder, and the rotating end is vertically upward. The driving gear is installed on the rotating end of the driving motor and meshes with the annular rack. The notch is opened at the front end of the bottom of the cold heading machine body. The blanking plate is inclined and inserted into the notch.

[0009] Further, a plurality of oil outlet holes are evenly formed on the outer surface of the rotating inner cylinder, a guiding ring is installed on the outer surface of the bottom of the rotating inner cylinder, and a set of guiding wheels corresponding to the guiding ring are installed on the inner wall of the oil removal outer cylinder.

[0010] Further, a servo cylinder is installed on the right side of the oil removal outer cylinder, a pushing plate is installed at the telescopic end of the servo cylinder, a pushing rod is connected to the pushing plate, the upper end of the pushing rod is movably inserted into the rotating inner cylinder, and a conical baffle is installed at the upper end of the pushing rod.

[0011] Further, the lower end of the pushing rod movably penetrates through the blanking plate.

[0012] Further, the periphery of the inner bottom of the rotating inner cylinder is inclined, and a blanking pipe corresponding to the conical baffle is inserted at the center of the bottom. The blanking pipe is movably inserted through a sealing bearing at the bottom of the oil removal outer cylinder.

[0013] Further, an oil drain port is formed on one side of the bottom of the oil removal outer cylinder.

[0014] The utility model provides a multi-station cold heading device for screws, which has the following beneficial effects: the screws formed by cold heading through the multi-station female die and the multi-station punch fall into the rotating inner cylinder. The driving motor can drive the rotating inner cylinder to rotate. Under the action of centrifugal force, the cold heading oil adhered to the surface of the screws is thrown into the oil removal outer cylinder and discharged through the oil drain port, realizing the collection of the separated cold heading oil. By adopting the centrifugal oil removal method, the oil removal of the screws is more thorough. During blanking, the telescopic end of the servo cylinder contracts, which can drive the conical baffle to lift, facilitating the discharged of the oil-removed screws from the bottom blanking plate and being convenient for use. Description of the Drawings

[0015] Figure 1 is a schematic diagram of a multi-station cold heading device for screws according to the utility model.

[0016] Figure 2 is a schematic diagram of the oil removal mechanism of the utility model.

[0017] Figure 3 is a top view of the rotating inner cylinder according to the utility model.

[0018] Figure 4 is a schematic diagram of the conical baffle being lifted according to the utility model.

[0019] In the figure: 1. Cold heading machine body; 2. Multi-station female die; 3. Multi-station punch; 4. Feeding guide plate; 5. Oil removal outer cylinder; 6. Circular slide rail; 7. Rotating inner cylinder; 8. Annular rack; 9. Driving motor; 10. Driving gear; 11. Notch; 12. Blanking plate; 13. Oil outlet hole; 14. Guiding ring; 15. Guiding wheel; 16. Servo cylinder; 17. Pushing plate; 18. Pushing rod; 19. Conical baffle; 20. Blanking pipe; 21. Sealing bearing; 22. Oil drain port. Detailed implementation mode

[0020] The present utility model will be specifically described below with reference to the accompanying drawings, as Figures 1-4 shown: A multi-station cold heading device for screws, comprising a cold heading machine body 1, a multi-station female die 2 and a multi-station punch die 3 installed in the cold heading machine body 1. An oil removal mechanism is provided at the bottom inside the cold heading machine body 1; the oil removal mechanism includes a group of guide plates 4, an oil removal outer cylinder 5, a circular slide rail 6, a rotating inner cylinder 7, an annular rack 8, a driving motor 9, a driving gear 10, a notch 11 and a blanking plate 12. The group of guide plates 4 are inclined and installed on the inner wall of the cold heading machine body 1 and are located below the multi-station female die 2 and the multi-station punch die 3. The oil removal outer cylinder 5 is installed at the bottom inside the cold heading machine body 1. The circular slide rail 6 is installed at the upper end of the oil removal outer cylinder 5. The rotating inner cylinder 7 is sleeved inside the oil removal outer cylinder 5, and the upper end is slidably installed on the circular slide rail 6. The annular rack 8 is installed on the outer surface of the upper end of the rotating inner cylinder 7. The driving motor 9 is installed on the left side of the upper end of the oil removal outer cylinder 5, and the rotating end is vertically upward. The driving gear 10 is installed on the rotating end of the driving motor 9 and meshes with the annular rack 8. The notch 11 is opened at the front end of the bottom of the cold heading machine body 1. The blanking plate 12 is inclined and inserted into the notch 11; a plurality of oil outlet holes 13 are evenly opened on the outer surface of the rotating inner cylinder 7, and a guide ring 14 is installed on the outer surface of the bottom of the rotating inner cylinder 7. A group of guide wheels 15 corresponding to the guide ring 14 are installed on the inner wall of the oil removal outer cylinder 5; A servo cylinder 16 is installed on the right side of the oil removal outer cylinder 5. A push plate 17 is installed at the telescopic end of the servo cylinder 16. A push rod 18 is connected to the push plate 17. The upper end of the push rod 18 is movably inserted into the rotating inner cylinder 7, and a conical baffle 19 is installed at the upper end of the push rod 18; the lower end of the push rod 18 movably penetrates through the blanking plate 12; The periphery of the bottom inside the rotating inner cylinder 7 is inclined, and a blanking pipe 20 corresponding to the conical baffle 19 is inserted at the center of the bottom. The blanking pipe 20 is movably inserted through a sealing bearing 21 at the bottom of the oil removal outer cylinder 5; An oil drain port 22 is opened on one side of the bottom of the oil removal outer cylinder 5.

[0021] Working principle of this implementation scheme: The electrical equipment used in this device is controlled by an external controller. The screws cold-headed and formed by the multi-station female die 2 and the multi-station punch die 3 fall into the rotating inner cylinder 5 through a group of guide plates 4;

[0022] During defatting: The outer defatting cylinder 5 is installed at the bottom inside the cold heading machine body 1. The circular slide rail 6 is installed at the upper end of the outer defatting cylinder 5. The rotating inner cylinder 7 is sleeved inside the outer defatting cylinder 5, and the upper end is slidably installed on the circular slide rail 6. The annular rack 8 is installed on the outer surface of the upper end of the rotating inner cylinder 7. The driving motor 9 is installed on the left side of the upper end of the outer defatting cylinder 5, and the rotating end faces vertically upward. The driving gear 10 is installed on the rotating end of the driving motor 9 and meshes with the annular rack 8. The notch 11 is opened at the front end of the bottom of the cold heading machine body 1. The blanking plate 12 is obliquely inserted into the notch 11. A number of oil outlet holes 13 are evenly opened on the outer surface of the rotating inner cylinder 7, and a guide ring 14 is installed on the outer surface of the bottom of the rotating inner cylinder 7. A group of guide wheels 15 corresponding to the guide ring 14 are installed on the inner wall of the outer defatting cylinder 5. An oil drain port 22 is opened on one side of the bottom of the outer defatting cylinder 5. As Figure 2 shown, the conical baffle 19 is initially in contact with the inner bottom of the rotating inner cylinder 7. The driving motor 9 drives the rotating inner cylinder 7 to rotate rapidly through the driving gear 10 and the annular rack 8. The guide ring 14 and a group of guide wheels 15 play a guiding role. Under the action of centrifugal force, the cold heading oil adhered to the surface of the screw is thrown to the inside of the outer defatting cylinder 5 through the oil outlet holes 13 and discharged through the oil drain port 22, realizing the collection of the separated cold heading oil. Using the centrifugal defatting method, the defatting of the screw is more thorough;

[0023] During blanking: A servo cylinder 16 is installed on the right side of the outer defatting cylinder 5. The telescopic end of the servo cylinder 16 is installed with a push plate 17. A push rod 18 is connected to the push plate 17. The upper end of the push rod 18 is movably inserted into the rotating inner cylinder 7, and a conical baffle 19 is installed at the upper end of the push rod 18. The lower end of the push rod 18 movably penetrates through the blanking plate 12. The periphery of the inner bottom of the rotating inner cylinder 7 is inclined, and a blanking pipe 20 corresponding to the conical baffle 19 is inserted at the center of the bottom. The blanking pipe 20 is movably inserted through the bottom of the outer defatting cylinder 5 through a sealing bearing 21. When the telescopic end of the servo cylinder 16 contracts, it drives the push plate 17 to move upward, and drives the conical baffle 19 to be lifted through the push rod 18. The defatted screws can fall onto the blanking plate 12 through the blanking pipe 20 and be automatically discharged. As Figure 4 shown, the bottom blanking method is adopted, which is convenient for the blanking and discharging of the screws.

[0024] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that those skilled in the art may make to some parts thereof all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A screw multi-station cold heading device, comprising a cold heading machine body (1) and a multi-station female die (2) and a multi-station punch die (3) installed in the cold heading machine body (1), characterized in that: The cold heading machine body (1) is provided with a deoiling mechanism at the bottom thereof; The de-oiling mechanism comprises a group of guide plates (4), a de-oiling outer cylinder (5), a circular slide rail (6), a rotating inner cylinder (7), an annular rack (8), a drive motor (9), a drive gear (10), a notch (11) and a feed plate (12), wherein the group of guide plates (4) is obliquely mounted on the inner wall of the cold heading machine body (1) and is located below the multi-station female die (2) and the multi-station punch die (3), the de-oiling outer cylinder (5) is mounted on the inner bottom of the cold heading machine body (1), the circular slide rail (6) is mounted on the upper end of the de-oiling outer cylinder (5), and the The rotating inner cylinder (7) is sleeved in the deoiling outer cylinder (5), and the upper end is slidably mounted on the circular slide rail (6); the annular rack (8) is mounted on the outer surface of the upper end of the rotating inner cylinder (7); the driving motor (9) is mounted on the left side of the upper end of the deoiling outer cylinder (5), and the rotating end is vertically facing upward; the driving gear (10) is mounted on the rotating end of the driving motor (9) and meshes with the annular rack (8); the notch (11) is opened at the front end of the bottom of the cold heading machine body (1), and the blanking plate (12) is obliquely inserted into the notch (11).

2. A screw multi-station cold heading device according to claim 1, characterized in that: The outer surface of the rotating inner cylinder (7) is evenly provided with a plurality of oil outlet holes (13), and a guide ring (14) is installed on the outer surface of the bottom of the rotating inner cylinder (7). A group of guide wheels (15) corresponding to the guide ring (14) are installed on the inner wall of the oil-removing outer cylinder (5).

3. A screw multi-station cold heading device according to claim 1, characterized in that: A servo cylinder (16) is installed on the right side of the de-oiling outer cylinder (5), a push plate (17) is installed on the telescopic end of the servo cylinder (16), a push rod (18) is connected to the push plate (17), the upper end of the push rod (18) is movably inserted in the rotating inner cylinder (7), and a conical baffle (19) is installed on the upper end of the push rod (18).

4. A screw multi-station cold heading device according to claim 3, characterized in that: The lower end of the push rod (18) movably penetrates the blanking plate (12).

5. A screw multi-station cold heading device according to claim 1, characterized in that: The bottom of the rotating inner cylinder (7) is inclined at all sides, and a feed pipe (20) corresponding to the conical baffle (19) is inserted at the center of the bottom. The feed pipe (20) is movably inserted into the bottom of the de-oiling outer cylinder (5) through a sealing bearing (21).

6. A screw multi-station cold heading device according to claim 1, characterized in that: An oil discharge port (22) is provided on one side of the bottom of the deoiling outer cylinder (5).

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