A multi-station cold heading device for bolts

By using the combination structure of the adsorption plate and permanent magnet in the multi-station cold heading forming device for bolts, the problem of impurities in cold heading oil affecting bolt quality is solved, achieving effective filtration of cold heading oil and improving bolt quality.

CN224389894UActive Publication Date: 2026-06-23YONGNIAN COUNTY BOPIN FASTENERS MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YONGNIAN COUNTY BOPIN FASTENERS MFG CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, impurities in cold heading oil cannot be effectively intercepted, causing impurities to be sprayed onto the bolts and affecting bolt quality.

Method used

A multi-station cold heading forming device for bolts is designed, which adopts a combination structure of adsorption plate and permanent magnet. The adsorption plate adsorbs impurities in the cold heading oil, and the permanent magnet adsorption plate is made of non-magnetic material, which facilitates the separation of impurities and realizes the recycling of cold heading oil.

Benefits of technology

It effectively filters impurities in cold heading oil, preventing them from affecting bolts, improving bolt quality, reducing scrap rate, and enabling the recycling of cold heading oil.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of bolt multi-station cold heading forming devices, including main frame, multiple cold heading stations are installed on the main frame, recovery tank is installed in the lower end of the main frame, cold heading oil sprayer is installed in the upper end of the main frame, filter tank is installed in the upper end of the recovery tank, overflow pipe is installed in the upper end of the filter tank, multiple adsorption plates are installed in the filter tank, through port is opened in the side of the adsorption plate, adsorption plate and through port form a liquid guide channel in the lower end in filter tank, liquid guide is installed in the filter tank.The beneficial effects of the utility model are that impurities in the cold heading oil can be adsorbed by the adsorption plate, the cold heading oil enters the recovery tank through the overflow pipe, and the cold heading oil is sprayed to the cold heading station by the sprayer, which can cool the bolt, prevent the impurities from affecting the bolt, improve the quality of the bolt and reduce the scrap rate.
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Description

Technical Field

[0001] This utility model relates to the field of bolt processing equipment technology, and more specifically, to a bolt multi-station cold heading forming device. Background Technology

[0002] After cold heading, bolts are heat-treated and galvanized to obtain high-strength and corrosion-resistant fasteners. When cold heading bolts, a cold heading machine is generally used, and cold heading oil is also needed to cool the processing part of the cold heading machine. Cold heading oil contains impurities, which need to be separated from the cold heading oil.

[0003] In the existing technology, when separating impurities in cold heading oil, the impurities are usually intercepted by a filter screen. However, some impurities are too small to be intercepted by the filter screen. If these impurities are sprayed onto the bolts along with the cold heading oil, they will affect the quality of the bolts during the cold heading process. Utility Model Content

[0004] The purpose of this invention is to solve the problem that impurities in cold heading oil can affect the quality of bolts, and a multi-station cold heading forming device for bolts has been designed.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a multi-station cold heading forming device for bolts, comprising a main frame, on which multiple cold heading stations are installed; a recovery box is installed at the lower end of the main frame; a cold heading oil sprayer is installed at the upper end of the main frame, with the inlet end of the cold heading oil sprayer extending into the recovery box; a filter box is installed at the upper end of the recovery box; an overflow pipe is installed at the upper end of the filter box; multiple adsorption plates are installed inside the filter box, which can adsorb impurities; a through-hole is opened on one side of each adsorption plate; the adsorption plate and the through-hole form a liquid guiding channel at the lower end of the filter box; a liquid guide is installed inside the filter box, which can guide cold heading oil into the beginning end of the liquid guiding channel; and the overflow pipe is located at the end of the liquid guiding channel.

[0006] Furthermore, the liquid guide includes a square frame installed at the upper end of the filter box, the square frame being bolted to a partition, and a liquid outlet pipe being installed on one side of the lower surface of the partition.

[0007] Furthermore, limit plates are installed on both sides of the upper end of the filter box, and an interception net is placed inside the filter box, with the interception net placed on the limit plates.

[0008] Furthermore, the filter box and the recycling box are detachably connected. A support plate is installed on the upper end of the recycling box, and multiple elongated openings are opened at the lower end of the filter box. The elongated openings are located below the adsorption plate and correspond one-to-one. A square groove is provided inside the adsorption plate. The square groove and the elongated openings are connected. Multiple permanent magnets are installed on the support plate, and the upper ends of the permanent magnets extend into the square groove.

[0009] Furthermore, the adsorption plate is made of a non-magnetic material.

[0010] The beneficial effects of this utility model are as follows: the adsorption plate can adsorb impurities in the cold heading oil, the cold heading oil enters the recovery box through the overflow pipe, and the cold heading oil is sprayed onto the cold heading station by the sprayer, which can cool the bolts and prevent impurities from affecting the bolts, thereby improving the bolt quality and reducing the scrap rate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a multi-station cold heading forming device for bolts according to the present invention;

[0012] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0013] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0014] Figure 4 yes Figure 1 A magnified view of a section at point C;

[0015] Figure 5 This is a schematic diagram showing the connection relationship between the filter box and the adsorption plate described in this utility model;

[0016] In the diagram: 1. Main frame; 2. Cold heading station; 3. Recovery box; 4. Cold heading oil sprayer; 5. Filter box; 6. Overflow pipe; 7. Adsorption plate; 8. Through port; 9. Liquid guiding channel; 10. Liquid guide; 11. Square frame; 12. Partition plate; 13. Liquid outlet pipe; 14. Limiting plate; 15. Interception net; 16. Support plate; 17. Long strip opening; 18. Square groove; 19. Permanent magnet. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] This utility model provides, for example Figure 1-5 The bolt multi-station cold heading forming device shown includes a main frame 1, on which multiple cold heading stations 2 are installed. A recovery box 3 is installed at the lower end of the main frame 1, and a cold heading oil sprayer 4 is installed at the upper end of the main frame 1. The inlet end of the cold heading oil sprayer 4 extends into the recovery box 3. A filter box 5 is installed at the upper end of the recovery box 3, and an overflow pipe 6 is installed at the upper end of the filter box 5. Multiple adsorption plates 7 are installed inside the filter box 5. The adsorption plates 7 can adsorb impurities. A through port 8 is opened on one side of the adsorption plate 7. The adsorption plates 7 and the through port 8 form a liquid guiding channel 9 at the lower end of the filter box 5. A liquid guide 10 is installed inside the filter box 5. The liquid guide 10 can guide cold heading oil into the beginning end of the liquid guiding channel 9. The overflow pipe 6 is located at the end of the liquid guiding channel 9.

[0020] The process of filtering impurities in this device is as follows: Bolts can be processed through the main frame 1 and the cold heading station 2. Cold heading oil is drawn from the recovery tank 3 and sprayed onto the cold heading station 2 through the cold heading oil sprayer 4 to cool the bolts. The sprayed cold heading oil falls into the filter tank 5. The cold heading oil is guided into the beginning of the liquid guiding channel 9 through the liquid guide 10, and the cold heading oil flows in the liquid guiding channel 9. When flowing, the impurities in the cold heading oil are adsorbed by the adsorption plate 7 in the filter tank 5. Finally, the cold heading oil returns to the recovery tank 3 through the overflow pipe 6, realizing the recycling of cold heading oil and filtering impurities to ensure the quality of the bolts.

[0021] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 3The liquid guide 10 includes a square frame 11 installed at the upper end of the filter box 5. The square frame 11 is connected to a partition 12 by bolts. A liquid outlet pipe 13 is installed on one side of the lower surface of the partition 12. The square frame 11 can support the partition 12, and the liquid can then fall to the starting end of the liquid guide channel 9 through the liquid outlet pipe 13.

[0022] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 Limiting plates 14 are installed on both sides of the upper end of the filter box 5. An interception net 15 is placed inside the filter box 5. The interception net 15 is placed on the limiting plates 14. The limiting plates 14 can support the interception net 15. The interception net 15 can intercept large impurities in the cold heading oil.

[0023] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 4 Included with instruction manual Figure 5 The filter box 5 and the recovery box 3 are detachably connected. The upper end of the recovery box 3 is equipped with a support plate 16. The lower end of the filter box 5 has multiple elongated openings 17, which are located below the adsorption plate 7 and correspond one to one. The adsorption plate 7 has a square groove 18 inside, which is connected to the elongated openings 17. Multiple permanent magnets 19 are installed on the support plate 16, and the upper end of the permanent magnets 19 extends into the square groove 18.

[0024] The adsorption plate 7 adsorbs impurities as follows: The permanent magnet 19 is inserted into the square groove 18. When the cold heading oil flows in the liquid guiding channel 9, the impurities can be attracted by the permanent magnet 19 and stick to the adsorption plate 7. After the cold heading machine stops working, the filter box 5 is separated from the recovery box 3 and the liquid guide 10 is removed. At this time, the permanent magnet 19 no longer attracts impurities, which can make the impurities fall into the filter box 5, and thus make it easier to remove the impurities.

[0025] The adsorption plate 7 is made of non-magnetic material, which makes it easier for impurities to separate from the adsorption plate 7 and makes cleaning more convenient.

[0026] 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; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station cold heading forming device for bolts, comprising a main frame (1), wherein multiple cold heading stations (2) are installed on the main frame (1), a recycling bin (3) is installed at the lower end of the main frame (1), and a cold heading oil sprayer (4) is installed at the upper end of the main frame (1), wherein the inlet end of the cold heading oil sprayer (4) extends into the recycling bin (3), characterized in that, The upper end of the recycling box (3) is equipped with a filter box (5), the upper end of the filter box (5) is equipped with an overflow pipe (6), the filter box (5) is equipped with multiple adsorption plates (7), the adsorption plates (7) can adsorb impurities, the adsorption plates (7) have a through port (8) on one side, the adsorption plates (7) and the through port (8) form a liquid guiding channel (9) at the lower end of the filter box (5), the filter box (5) is equipped with a liquid guide (10), the liquid guide (10) can guide cold heading oil into the beginning end of the liquid guiding channel (9), and the overflow pipe (6) is located at the end of the liquid guiding channel (9).

2. The bolt multi-station cold heading forming device according to claim 1, characterized in that, The liquid guide (10) includes a square frame (11) installed at the upper end of the filter box (5), the square frame (11) is connected to a partition (12) by bolts, and a liquid outlet pipe (13) is installed on one side of the lower surface of the partition (12).

3. The bolt multi-station cold heading forming device according to claim 2, characterized in that, Limiting plates (14) are installed on both sides of the upper end of the filter box (5). An intercepting net (15) is placed inside the filter box (5) and the intercepting net (15) is placed on the limiting plate (14).

4. The bolt multi-station cold heading forming device according to claim 1, characterized in that, The filter box (5) and the recycling box (3) are detachably connected. A support plate (16) is installed on the upper end of the recycling box (3). The filter box (5) has multiple long openings (17) at the lower end. The long openings (17) are located below the adsorption plate (7) and correspond one to one. The adsorption plate (7) has a square groove (18) inside. The square groove (18) and the long openings (17) are connected. Multiple permanent magnets (19) are installed on the support plate (16). The upper end of the permanent magnets (19) extends into the square groove (18).

5. The bolt multi-station cold heading forming device according to claim 4, characterized in that, The adsorption plate (7) is made of non-magnetic material.