A smoke exhaust device for a cold heading machine

Abstract

This utility model discloses a smoke extraction device for a cold heading machine, including a smoke extractor and a smoke extraction pipe connected to the top of the cold heading machine. A flexible section is provided at the end of the smoke extraction pipe, with an opening in the flexible section serving as a smoke extraction port. A driving mechanism is also provided at the end of the smoke extraction pipe. The driving mechanism can cause the flexible section to undergo axial deformation of varying degrees, thereby changing the distance between the smoke extraction port and the cold heading station. By adjusting the axial deformation of the flexible section through the driving mechanism, for example, the driving mechanism can stretch the flexible section to bring the smoke extraction port closer to the cold heading station; conversely, the flexible section can be contracted and moved further away from the cold heading station. Compared with the prior art, this utility model, through the cooperation of the driving mechanism and the flexible section, achieves adjustable distance between the smoke extraction port and the cold heading station, resulting in better smoke extraction performance.

Description

Technical Field

[0001] This utility model relates to the field of cold heading machine technology, and in particular, to a smoke exhaust device for a cold heading machine. Background Technology

[0002] A cold heading machine is a specialized piece of equipment that applies high pressure to a metal blank at room temperature, causing it to plastically deform within a mold to form fasteners (such as bolts and nuts). This process is highly efficient and energy-saving, improving the strength and surface quality of parts. It is suitable for mass production, and is particularly economical for products with sizes up to M24. Modern models are mostly multi-station designs with a high degree of automation, and are widely used in the automotive, machinery manufacturing, and other fields.

[0003] When lubricating the cold heading station of a cold heading machine, the lubricating oil evaporates and vaporizes into smoke when heated. A smoke extraction system is typically used to draw this smoke out of the cold heading machine. This system generally includes a range hood and a smoke extraction duct connected to the top of the cold heading machine. Under the negative pressure of the range hood, the smoke inside the cold heading machine is drawn into the smoke extraction duct. However, most smoke extraction ducts are fixed, with their extraction outlets located far from the cold heading station, and the distance between them cannot be adjusted, ultimately resulting in poor smoke extraction efficiency. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a smoke exhaust device for a cold heading machine.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A smoke extraction device for a cold heading machine includes a smoke extractor and a smoke extraction duct connected to the top of the cold heading machine. The end of the smoke extraction duct is provided with a flexible part, the opening of which is a smoke extraction port. The end of the smoke extraction duct is also provided with a driving mechanism, which can drive the flexible part to undergo axial deformation of different degrees, thereby changing the distance between the smoke extraction port and the cold heading station.

[0007] Preferably, the flexible part includes a rubber tube or a corrugated tube.

[0008] Preferably, the drive mechanism includes at least two drive members arranged circumferentially.

[0009] Preferably, some of the drive members are adapted to perform different degrees of drive stroke, thereby causing the flexible part to undergo lateral deformation and thus changing the smoking angle of the smoke extraction port.

[0010] Preferably, the driving member includes a linear ejector source, the ejector shaft of which is connected to the end of the flexible part.

[0011] Preferably, the drive component includes a rotatably mounted take-up roller, on which a drive cable is wound, and the end of the drive cable is connected to the end of the flexible part.

[0012] Preferably, the end of the flexible part is provided with a connecting piece, and the connecting piece is provided with a connecting hole for a fastening bolt to pass through. The fastening bolt passes through the connecting piece and is screwed to the ejection shaft of the linear ejection source.

[0013] Preferably, the end of the flexible part is provided with a connecting ring, and the end of the drive cable is attached to the connecting ring.

[0014] Preferably, four drive components are evenly arranged circumferentially.

[0015] Preferably, a liquid storage bladder is provided on the side wall of the flexible part, and a nozzle with an opening facing downward is provided on the liquid storage bladder. The driving mechanism is also adapted to drive the liquid storage bladder to squeeze the end of the smoke extraction pipe so that the water in the liquid storage bladder is sprayed out from the nozzle.

[0016] The beneficial effects of this invention are: by using a driving mechanism to adjust the axial deformation of the flexible part to different degrees, for example, the driving mechanism can stretch the flexible part to bring the smoke extraction port closer to the cold heading station; conversely, the flexible part can be contracted and moved further away from the cold heading station. Compared with the prior art, this invention, through the cooperation of the driving mechanism and the flexible part, can achieve adjustable distance between the smoke extraction port and the cold heading station, resulting in better smoke extraction effect. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of an embodiment;

[0018] Figure 2 This is a schematic diagram of the liquid reservoir structure;

[0019] Figure 3 This is a schematic diagram of the drive cable structure;

[0020] Figure 4 This is a schematic diagram illustrating the usage state of an embodiment.

[0021] Reference numerals: 1. Smoke extractor; 2. Smoke extraction duct; 3. Flexible part; 4. Smoke extraction port; 5. Drive mechanism; 6. Drive component; 7. Linear ejector source; 8. Take-up roller; 9. Drive cable; 10. Connecting piece; 13. Connecting ring; 14. Liquid reservoir; 15. Nozzle; 16. Cold heading station. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0023] like Figures 1 to 4 As shown, a smoke extraction device for a cold heading machine includes a smoke extractor 1 and a smoke extraction duct 2 extending to the top of the cold heading machine. For example, an outer cover is provided on the outside of the cold heading machine, and the smoke extraction duct 2 is connected to the top of the outer cover. A flexible part 3 is provided at the end of the smoke extraction duct 2, and the opening of the flexible part 3 constitutes a smoke extraction port 4 for drawing smoke from inside the cold heading machine into the smoke extraction duct 2. Furthermore, a drive mechanism 5 is provided at the end of the smoke extraction duct 2, which can drive the flexible part 3 to deform, particularly allowing the flexible part 3 to deform axially.

[0024] When the flexible part 3 is stretched axially, the distance between the smoke extraction port 4 and the cold heading station 16 is shortened accordingly. The distance between the smoke extraction port 4 and the cold heading station 16 is adjusted according to the different volume range of the smoke, so as to achieve a better smoke extraction effect. When the flexible part 3 is contracted axially, the distance between the smoke extraction port 4 and the cold heading station 16 is increased accordingly. At this time, it is convenient for the operator to observe the operation of the cold heading station 16, such as facilitating maintenance and troubleshooting.

[0025] In some embodiments, the flexible portion 3 may be a rubber tube or a corrugated tube, while the drive mechanism 5 includes a plurality of drive members 6 arranged circumferentially. It is understood that when the drive members 6 simultaneously extend or retract, the flexible portion 3 will undergo axial deformation and expansion / contraction. In possible examples, the drive members 6 are also adapted to perform different degrees of drive stroke, for example, when... Figure 4 When the driving stroke of the left driving member 6 is less than that of the right driving member 6, the flexible part 3 will undergo lateral deformation by tilting to the left, which will cause the smoking angle of the smoke extraction port 4 to be more biased to the left.

[0026] For the smoke extraction duct 2, the design concept is to minimize bends, as this will help reduce the deposition of oil mist at the bends. However, due to factors such as limited space, the end of the smoke extraction duct 2 may be misaligned with the cold forging station 16 after installation. In this case, the lateral deformation of the flexible part 3 can make the smoke extraction port 4 deviate to one side of the cold forging station 16, which will further facilitate the intake of oil mist in the smoke extraction duct 2.

[0027] For example, four drive components 6 can be evenly arranged circumferentially. In this case, the four drive components 6 can work together to achieve more angle adjustments of the smoke extraction port 4, making the smoke exhaust device more versatile.

[0028] The flexible part 3 and the smoke extraction pipe 2 can be connected by bolts from the side, or an annular groove can be provided on the side wall of the smoke extraction pipe 2, and a flange can be provided on the inner wall of the flexible part 3. The two are fixed together by the engagement of the flange and the annular groove.

[0029] In some examples, the drive element 6 may be a linear ejector source 7, such as an electric cylinder or a pneumatic cylinder. The end of the flexible part 3 is provided with a connecting piece 10, which has a through-hole. During installation, the ejector shaft of the linear ejector source 7 abuts against the connecting piece 10, and then the fastening bolt is passed through the connecting hole and screwed onto the ejector shaft to complete the installation.

[0030] In another configuration, the drive unit 6 may include a take-up roller 8 driven to rotate by a motor, and a drive cable 9 is wound around the take-up roller 8. A connecting ring 13 is provided at the end of the flexible part 3, and the end of the drive cable 9 is attached to the connecting ring 13. As the take-up roller 8 rotates, the drive cable 9 is extended or tightened, thereby pulling the flexible part 3.

[0031] In this configuration, the natural state of the adaptable flexible part 3 is the lowest position closest to the cold heading station 16. The distance between the smoke extraction port 4 and the cold heading station 16 can be adjusted by driving the cable 9 to pull the flexible part 3 upward to different degrees.

[0032] In some embodiments, a liquid storage bladder 14 is also provided on the side wall of the flexible part 3. The liquid storage bladder 14 stores water, and a nozzle 15 with its opening facing downwards is also constructed on the liquid storage bladder 14. It can be imagined that if the fumes at the cold heading station 16 catch fire, the drive mechanism 5 can drive the flexible part 3 to retract upwards to its limit position. During this period, the liquid storage bladder 14 will squeeze the end of the smoke extraction pipe 2. Under the action of pressure, the water in the liquid storage bladder 14 will be sprayed out from the nozzle 15, thereby alleviating or extinguishing the fire.

[0033] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A smoke exhaust device for a cold header, comprising a smoke extractor (1) and a smoke duct (2) connected to the top of the cold header, characterized in that: The end of the smoke extraction pipe (2) is provided with a flexible part (3), the opening of the flexible part (3) is a smoke extraction port (4), and the end of the smoke extraction pipe (2) is also provided with a driving mechanism (5). The driving mechanism (5) can drive the flexible part (3) to undergo axial deformation of different degrees, thereby changing the distance between the smoke extraction port (4) and the cold heading station.

2. A cold header smoke evacuation device according to claim 1, characterized in that: The flexible part (3) includes a rubber tube or a corrugated tube.

3. The smoke exhaust device for a cold heading machine according to claim 1, characterized in that: The drive mechanism (5) includes at least two drive elements (6) arranged circumferentially.

4. A cold header smoke evacuation device according to claim 3, characterized in that: Several of the drive members (6) are adapted to perform different degrees of drive stroke, thereby causing the flexible part (3) to undergo lateral deformation and thereby changing the smoking angle of the smoke extraction port (4).

5. A cold header smoke evacuation device according to claim 3 or 4, characterised in that: The drive unit (6) includes a linear ejector source (7), the ejector shaft of which is connected to the end of the flexible part (3).

6. A smoke extraction device for a cold header according to claim 3 or 4, characterised in that: The drive unit (6) includes a rotatably mounted take-up roller (8), on which a drive cable (9) is wound, and the end of the drive cable (9) is connected to the end of the flexible part (3).

7. The smoke evacuation device for a cold header of claim 5, wherein: The flexible part (3) is provided with a connecting piece (10) at its end. The connecting piece (10) has a through hole for a fastening bolt to pass through. The fastening bolt passes through the connecting piece (10) and is screwed to the ejection shaft of the linear ejection source (7).

8. The smoke evacuation device for a cold header of claim 6, wherein: The end of the flexible part (3) is provided with a connecting ring (13), and the end of the drive cable (9) is attached to the connecting ring (13).

9. The smoke evacuation device for a cold header of claim 4, wherein: The driving components (6) are arranged in four evenly in the circumferential direction.

10. The smoke evacuation device for a cold header of claim 1, wherein: A liquid storage bladder (14) is provided on the side wall of the flexible part (3), and a nozzle with an opening facing downward is provided on the liquid storage bladder (14). The driving mechanism (5) is also adapted to drive the liquid storage bladder (14) to squeeze the end of the smoke extraction pipe (2) so that the water in the liquid storage bladder (14) is sprayed out from the nozzle.

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