Waste gas treatment device for cold header

Abstract

The invention belongs to the technical field of waste gas treatment of cold headers, and discloses a waste gas treatment device for a cold header, which comprises a cold header body and is characterized in that a waste gas purification assembly is arranged on one side of the cold header body, and the top end of the waste gas purification assembly is fixedly connected with a ventilation pipeline. Through cooperation of a baffle, a rotating shaft, a second connecting rod, a threaded rod and other structures, the length of the gas collecting hood is conveniently adjusted, then the waste gas collecting efficiency under different working conditions is improved, a cross-shaped groove is formed in the threaded rod, and therefore when the threaded rod rotates, the rotating shaft and the first connecting rod outside the rotating shaft can be driven to rotate through the cross-shaped groove; after the rotating shaft rotates, the two baffles can be driven by the first connecting rod to move oppositely, so that the overall length of the gas collecting hood is expanded after the baffles move, the waste gas collecting area and capacity are increased, and the waste gas collecting efficiency under different working conditions is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment of cold heading machines, in particular to a waste gas treatment device for cold heading machines. Background Art

[0002] Cold heading is a metal forming process that quickly forges metal into shape at a lower temperature. It is usually used to produce various screws, nuts and other parts. During this process, oil mist, dust and other harmful gases may be generated. By using exhaust gas treatment devices, the impact of the production process on the environment can be reduced and the health and safety of workers can be ensured.

[0003] For example, the utility model with publication number CN217411861U discloses a waste gas collection device for a part forming machine, including an air intake pipe arranged above a cold heading machine, an end of the air intake pipe away from the cold heading machine is connected to a waste gas treatment box, an air pump for sucking waste gas into the waste gas treatment box is connected to the air intake pipe, the waste gas treatment box is connected to a clean air discharge pipe, a filter mechanism is arranged in the waste gas treatment box, a cavity for accommodating the filter mechanism is opened in the waste gas treatment box, the filter mechanism divides the cavity into a polluted part and a clean part, the clean air discharge pipe is connected to the clean part, the air intake pipe is connected to the polluted part, a partition plate is arranged in the waste gas treatment box, the partition plate is connected to an oil drain pipe, the oil drain pipe is connected to a collection box, and the collection box is slidably connected to the waste gas treatment box. The present application processes and collects waste gas generated when the cold heading machine is working by arranging a waste gas treatment box and a filter mechanism, thereby reducing the adverse effects of waste gas on the health of operators.

[0004] When the above-mentioned device is in use, activated carbon plates, metal filter plates and other components are arranged in the exhaust gas treatment box, so as to facilitate the treatment and collection of the exhaust gas discharged by the cold heading machine. However, when the above-mentioned device is in use, the size of the air collecting hood cannot be adjusted, which results in that the device can only be applied to cold heading machines of specific sizes and specific production conditions. If the equipment model changes or the exhaust gas emissions increase, the air collecting hood may not be able to completely cover the exhaust gas emission area, resulting in insufficient exhaust gas collection, thereby affecting the environmental quality and employee health. Therefore, a waste gas treatment device for a cold heading machine is proposed to solve the problems raised in the background technology. Summary of the invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides an exhaust gas treatment device for a cold heading machine, which has the advantage of conveniently adjusting the length of the air collecting hood, thereby improving the exhaust gas collection efficiency under different working conditions. Through the coordination between structures such as the baffle, the rotating shaft, the second connecting rod and the threaded rod, the overall length of the air collecting hood is expanded after the baffle is moved, so as to increase the area and capacity of the exhaust gas collection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exhaust gas treatment device for a cold heading machine, comprising a cold heading machine body, an exhaust gas purification component is arranged on one side of the cold heading machine body, a ventilation duct is fixedly connected to the top of the exhaust gas purification component, a support block is fixedly connected to the end of the ventilation duct away from the exhaust gas purification component, an air collecting hood is clamped inside the support block, baffles are movably connected to both ends of the interior of the air collecting hood, a rotating shaft is movably connected to both sides of the interior of the air collecting hood, a first connecting rod is fixedly connected to the outside of the rotating shaft, a second connecting rod is hinged to both ends of the first connecting rod, a threaded rod is threadedly connected to the side of the air collecting hood close to the exhaust gas purification component, a clamping component is movably connected to the interior of the support block, and a clamping groove is provided at an equal sixty degree in an annular shape on the top of the air collecting hood; The clamping assembly comprises a turntable, and a guide groove is provided on the surface of the turntable at a 60-degree angle in a circular shape.

[0007] Preferably, the inner ring of the support block is movably connected with an inclined block at a sixty-degree angle, the top of the inclined block is fixedly connected with a round rod, and the round rod is movably clamped in the inner part of the guide groove.

[0008] Preferably, one end of the inclined block close to the slot is in an inclined shape, and one end of the inclined block away from the slot is fixedly connected with a spring sheet, and the inclined block is initially engaged with the inside of the slot.

[0009] Preferably, the inclined block is elastically connected to the support block via a spring sheet, the spring sheet is used to squeeze the inclined block and keep the inclined block moving toward the slot, the support block is internally movably connected with a pull rod, and the bottom end of the pull rod is fixedly connected to one of the round rods.

[0010] Preferably, the inner wall of the support block is provided with a straight groove that cooperates with the round rod. The straight groove is used to limit the round rod circumferentially when the turntable rotates. When the turntable rotates, the round rod is driven to slide along the trajectory of the guide groove. After the round rod moves, it drives the inclined block to release the engagement with the slot.

[0011] Preferably, the opposite sides of the two baffles are both in the shape of an inclined surface, and the opposite sides of the two baffles both penetrate the outer wall of the air collecting hood and extend to the inside of the air collecting hood, and the air collecting hood is located above the cold heading machine body.

[0012] Preferably, an O-ring is provided on the top of the air collecting hood, bumps are provided on both the upper and lower sides of the outer wall of the baffle, and a sliding groove for limiting the bumps is provided on the inner wall of the air collecting hood.

[0013] Preferably, one end of the second connecting rod away from the first connecting rod is hinged to the baffle, and the first connecting rod rotates around the rotating shaft as the axis. After the first connecting rod rotates counterclockwise, it drives the two second connecting rods to move in opposite directions.

[0014] Preferably, a blocking block is provided on the surface of the rotating shaft close to the threaded rod, and a cross groove matched with the blocking block is opened on the inner wall of the threaded rod. One end of the rotating shaft is movably connected to the inside of the cross groove. When the threaded rod rotates, the cross groove is used to circumferentially limit the blocking block on the rotating shaft.

[0015] Preferably, a gap is left between the bottom end of the air collecting hood and the top of the cold heading machine body, and the interior of the exhaust gas purification component includes a centrifugal fan, an activated carbon adsorber, a detection structure and a waste oil recovery structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention facilitates the adjustment of the length of the hood through the coordination between structures such as the baffle, the rotating shaft, the second connecting rod and the threaded rod, thereby improving the exhaust gas collection efficiency under different working conditions. A cross groove is opened inside the threaded rod, thereby circumferentially limiting the protrusion on the rotating shaft, so that when the threaded rod rotates, it can drive the rotating shaft and the first connecting rod outside it to rotate through the cross groove. The two ends of the second connecting rod are respectively hinged to the first connecting rod and the baffle, so that after the rotating shaft rotates, the two baffles can be driven by the first connecting rod to move in opposite directions, so that the overall length of the hood is expanded after the baffle moves, so as to increase the exhaust gas collection area and capacity, thereby improving the exhaust gas collection efficiency under different working conditions.

[0017] The present invention facilitates the disassembly and connection of the ventilation duct and the air collecting hood through the cooperation between structures such as the turntable, the inclined block and the slot. One end of the inclined block is in the shape of an inclined surface, so that when the ventilation duct and the air collecting hood are installed, the inclined surface of the inclined block abuts against the top of the air collecting hood, thereby shrinking to the inside of the support block. The inclined block is then reset under the action of the elastic force of the spring piece, thereby facilitating the connection between the ventilation duct and the air collecting hood. The round rod is movably connected to the inside of the guide groove, so that when the pull rod drives a round rod to move, the turntable rotates, thereby driving several round rods to move, thereby causing the inclined block to shrink to the inside of the support block, thereby facilitating the release of the card slot, thereby achieving the effect of facilitating disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the gas collecting hood of the present invention; Figure 3 It is a schematic diagram of the side section structure of the gas collecting hood of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle; Figure 6It is a schematic diagram of the position relationship among the baffle, the rotating shaft, the first connecting rod and the threaded rod of the present invention; Figure 7 It is an exploded view of the clamping assembly of the present invention.

[0019] In the figure: 1. cold heading machine body; 2. exhaust gas purification component; 3. ventilation duct; 4. support block; 5. air collecting hood; 6. baffle; 7. rotating shaft; 8. first connecting rod; 9. second connecting rod; 10. threaded rod; 11. cross groove; 12. clamping assembly; 1201. turntable; 1202. guide groove; 1203. inclined block; 1204. round rod; 1205. spring piece; 1206. pull rod; 1207. straight groove; 13. clamping groove; 14. O-ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figures 1 to 7 As shown, the present invention provides an exhaust gas treatment device for a cold heading machine, comprising a cold heading machine body 1, an exhaust gas purification component 2 is arranged on one side of the cold heading machine body 1, a ventilation duct 3 is fixedly connected to the top of the exhaust gas purification component 2, a support block 4 is fixedly connected to one end of the ventilation duct 3 away from the exhaust gas purification component 2, an air collecting hood 5 is clamped inside the support block 4, baffles 6 are movably connected to both ends of the air collecting hood 5, a rotating shaft 7 is movably connected to both sides of the air collecting hood 5, a first connecting rod 8 is fixedly connected to the outside of the rotating shaft 7, and a second connecting rod 9 is hinged to both ends of the first connecting rod 8, a threaded rod 10 is threadedly connected to one side of the air collecting hood 5 close to the exhaust gas purification component 2, a clamping component 12 is movably connected to the inside of the support block 4, and a clamping groove 13 is provided at sixty degrees in an annular manner on the top of the air collecting hood 5; The clamping assembly 12 includes a rotating disk 1201 , and a guide groove 1202 is formed on the surface of the rotating disk 1201 at a 60-degree angle.

[0022] The above scheme is adopted: a cross groove 11 is opened inside the threaded rod 10, so as to facilitate the circumferential limitation of the protrusion on the rotating shaft 7, so that when the threaded rod 10 rotates, it can drive the rotating shaft 7 and the first connecting rod 8 outside it to rotate through the cross groove 11, and the two ends of the second connecting rod 9 are respectively hinged to the first connecting rod 8 and the baffle 6, so that after the rotating shaft 7 rotates, it can drive the two baffles 6 to move in opposite directions through the first connecting rod 8, and then after the baffle 6 moves, the overall length of the air collecting hood 5 is expanded to increase the area and capacity of exhaust gas collection, thereby improving the exhaust gas collection efficiency under different working conditions.

[0023] like Figure 3 , Figure 5 and Figure 7 As shown, the inner ring of the support block 4 is movably connected with an inclined block 1203 at a sixty-degree angle, and the top of the inclined block 1203 is fixedly connected with a round rod 1204. The round rod 1204 is movably clamped in the inside of the guide groove 1202. The end of the inclined block 1203 close to the slot 13 is in a slope shape, and the end of the inclined block 1203 away from the slot 13 is fixedly connected with a spring piece 1205. The inclined block 1203 is clamped in the inside of the slot 13 in the initial state. The inclined block 1203 is elastically connected to the support block 4 through the spring piece 1205. The spring piece 1205 is used to squeeze the inclined block 1203 and keep the inclined block 1203 moving toward the slot 13. The support block 4 is movably connected with a pull rod 1206, and the bottom end of the pull rod 1206 is fixedly connected to one of the round rods 1204.

[0024] The above scheme is adopted: one end of the inclined block 1203 is in the shape of an inclined surface, so that when the ventilation duct 3 and the air collecting hood 5 are installed, the inclined surface of the inclined block 1203 abuts against the top of the air collecting hood 5, thereby shrinking to the inside of the support block 4, and then the inclined block 1203 is reset under the action of the elastic force of the spring piece 1205, so as to facilitate the connection between the ventilation duct 3 and the air collecting hood 5, and the round rod 1204 is movably connected to the inside of the guide groove 1202, so that when the pull rod 1206 drives a round rod 1204 to move, the turntable 1201 rotates, and then drives several round rods 1204 to move, so that the inclined block 1203 is retracted to the inside of the support block 4, so as to facilitate the release of the clamping groove 13, thereby achieving the effect of facilitating disassembly.

[0025] like Figure 1 to Figure 2 , Figures 5 to 7 As shown, the inner wall of the support block 4 is provided with a straight slot 1207 which cooperates with the round rod 1204. The straight slot 1207 is used to limit the round rod 1204 circumferentially when the turntable 1201 rotates. When the turntable 1201 rotates, it drives the round rod 1204 to slide along the trajectory of the guide groove 1202. After the round rod 1204 moves, it drives the inclined block 1203 to release the engagement with the slot 13. The opposite sides of the two baffles 6 are both inclined. The opposite sides of the two baffles 6 pass through the outer wall of the air collecting hood 5 and extend to the interior of the air collecting hood 5. The air collecting hood 5 is located above the cold heading machine body 1.

[0026] The above solution is adopted: one side of the baffle 6 is in the shape of an inclined surface, and its function is that the inclined surface design can guide the exhaust gas to enter the interior of the air collecting hood 5 more smoothly. When the exhaust gas is discharged from the cold heading machine body 1, the inclined surface can change the direction of the exhaust gas flow, so that the exhaust gas flows toward the interior of the air collecting hood 5. In this way, the diffusion of the exhaust gas in the surrounding air can be reduced, thereby improving the exhaust gas collection efficiency.

[0027] like Figures 1 to 6 As shown, an O-ring 14 is provided on the top of the air collecting hood 5, and protrusions are provided on the upper and lower sides of the outer wall of the baffle 6. The inner wall of the air collecting hood 5 is provided with a sliding groove for limiting the protrusion. The second connecting rod 9 is hinged to the baffle 6 at one end away from the first connecting rod 8. The first connecting rod 8 rotates around the rotating shaft 7. After the first connecting rod 8 rotates counterclockwise, it drives the two second connecting rods 9 to move in opposite directions. A clamping block is provided on the surface of the rotating shaft 7 close to the threaded rod 10. The inner wall of the threaded rod 10 is provided with a cross groove 11 adapted to the clamping block. One end of the rotating shaft 7 is movably clamped in the inside of the cross groove 11. When the threaded rod 10 rotates, the cross groove 11 is used to circumferentially limit the clamping block on the rotating shaft 7.

[0028] The above scheme is adopted: an O-ring 14 is arranged on the top of the air collecting hood 5, and its function is that the O-ring 14 can fit tightly at the connection between the air collecting hood 5 and the support block 4, so as to form an effective seal between the two, thereby preventing the exhaust gas from leaking out from the connection between the air collecting hood 5 and the support block 4, thereby ensuring that the exhaust gas can be completely collected and transported to the inside of the exhaust gas purification component 2 through the ventilation duct 3. At the same time, the O-ring 14 can also play a role of buffering and shock absorption, thereby reducing the vibration and looseness of the connection between the air collecting hood 5 and the support block 4, thereby improving the stability of the entire device during operation; A slide groove is opened through the inner wall of the air collecting hood 5. Its function is to provide a clear moving path for the baffle 6. When the two baffles 6 need to be unfolded to both sides, the slide groove can ensure that the baffle 6 slides accurately to the predetermined position, thereby avoiding the baffle 6 from deflecting or shaking during the movement, thereby improving the overall operation stability of the device.

[0029] like Figure 1 As shown, there is a gap between the bottom end of the air collecting hood 5 and the top of the cold heading machine body 1, and the exhaust gas purification component 2 includes a centrifugal fan, an activated carbon adsorber, a detection structure and a waste oil recovery structure.

[0030] The above scheme is adopted: a centrifugal fan is arranged inside the exhaust gas purification component 2 to generate a strong airflow force, so that the exhaust gas generated by the cold heading machine body 1 is sucked into the exhaust gas purification component 2 through the air collecting hood 5 and the ventilation duct 3, and then, the absorbed exhaust gas is processed and collected by the activated carbon adsorber and waste oil recovery structure arranged inside the exhaust gas purification component 2. Finally, the treated exhaust gas is checked according to the test results until the exhaust gas reaches the discharge standard. The above contents belong to the prior art.

[0031] The working principle and use process of the present invention are as follows: when the exhaust gas emission demand of the cold heading machine body 1 increases, the operator rotates the threaded rod 10 so that the threaded rod 10 rotates and moves toward the inside of the cold heading machine body 1, thereby causing the rotating shaft 7 to slide inside the cross groove 11. At the same time, the circumferential limit of the rotating shaft 7 is also set by the cross groove 11, thereby driving the rotating shaft 7 and the first connecting rod 8 thereon to rotate counterclockwise, and then the two second connecting rods 9 are driven to move in the opposite direction through the first connecting rod 8. The movement of the second connecting rod 9 drives the baffle 6 to move in the same direction. Subsequently, the two baffles 6 are stably expanded to both sides of the air collecting hood 5 under the action of the limit of the slide groove on the inner wall of the air collecting hood 5, thereby increasing the exhaust gas collection area and capacity of the air collecting hood 5, ensuring that all exhaust gas can be collected, and thereby improving the exhaust gas collection effect of the device as a whole. After the ventilation duct 3 has been used for a long time, it will be eroded and rubbed by particulate matter, corrosive substances, etc. in the exhaust gas, causing damage and requiring replacement. At this time, the operator pulls the pull rod 1206 in the opposite direction away from the ventilation duct 3, so that the pull rod 1206 drives one of the round rods 1204 to move in the same direction. While moving, the round rod 1204 slides along the trajectory of the guide groove 1202, thereby driving the turntable 1201 to rotate, and then the remaining five round rods 1204 all slide along the trajectory of the guide groove 1202. While the round rod 1204 moves, it drives the inclined block 1203 to move. When the round rod 1204 abuts against the inner wall of the guide groove 1202, the inclined block 1203 is completely retracted to the inside of the support block 4, thereby releasing the engagement with the slot 13 on the air collecting hood 5, thereby facilitating the disassembly of the ventilation duct 3 and the air collecting hood 5, thereby facilitating the replacement of the ventilation duct 3 and the subsequent cleaning of the air collecting hood 5, thereby improving the convenience and practicality of the overall device.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device for a cold heading machine, comprising a cold heading machine body (1), characterized in that: An exhaust gas purification component (2) is provided on one side of the cold heading machine body (1); a ventilation duct (3) is fixedly connected to the top of the exhaust gas purification component (2); an end of the ventilation duct (3) away from the exhaust gas purification component (2) is fixedly connected to a support block (4); an air collecting hood (5) is clamped inside the support block (4); baffles (6) are movably connected to both ends of the interior of the air collecting hood (5); a rotating shaft (7) is movably connected to both sides of the interior of the air collecting hood (5); a first connecting rod (8) is fixedly connected to the outside of the rotating shaft (7); a second connecting rod (9) is hinged to both ends of the first connecting rod (8); a threaded rod (10) is threadedly connected to the side of the air collecting hood (5) close to the exhaust gas purification component (2); a clamping component (12) is movably connected to the interior of the support block (4); and a clamping groove (13) is provided at an angle of 60 degrees in a ring shape at the top of the air collecting hood (5); The clamping assembly (12) comprises a rotating disk (1201), and a guide groove (1202) is provided on the surface of the rotating disk (1201) at an angle of 60 degrees.

2. The exhaust gas treatment device for a cold heading machine according to claim 1, characterized in that: The inner ring of the support block (4) is movably connected to an inclined block (1203) at a sixty-degree angle, and the top of the inclined block (1203) is fixedly connected to a round rod (1204), and the round rod (1204) is movably clamped in the interior of the guide groove (1202).

3. The exhaust gas treatment device for cold heading machine according to claim 2, characterized in that: One end of the inclined block (1203) close to the slot (13) is in the shape of an inclined surface, and one end of the inclined block (1203) away from the slot (13) is fixedly connected to a spring sheet (1205). In the initial state, the inclined block (1203) is clamped inside the slot (13).

4. The exhaust gas treatment device for cold heading machine according to claim 2, characterized in that: The inclined block (1203) is elastically connected to the support block (4) via a spring sheet (1205). The spring sheet (1205) is used to squeeze the inclined block (1203) and keep the inclined block (1203) moving toward the slot (13). The support block (4) is internally movably connected to a pull rod (1206). The bottom end of the pull rod (1206) is fixedly connected to one of the round rods (1204).

5. The exhaust gas treatment device for cold heading machine according to claim 2, characterized in that: The inner wall of the support block (4) is provided with a straight notch (1207) that matches the round rod (1204). The straight notch (1207) is used to circumferentially limit the round rod (1204) when the turntable (1201) rotates. When the turntable (1201) rotates, the round rod (1204) is driven to slide along the track of the guide groove (1202). After the round rod (1204) moves, it drives the inclined block (1203) to release the engagement with the engaging groove (13).

6. The exhaust gas treatment device for cold heading machine according to claim 1, characterized in that: The opposite sides of the two baffles (6) are both in the shape of an inclined surface, and the opposite sides of the two baffles (6) both penetrate the outer wall of the air collecting hood (5) and extend to the interior of the air collecting hood (5), and the air collecting hood (5) is located above the cold heading machine body (1).

7. The exhaust gas treatment device for a cold heading machine according to claim 1, characterized in that: An O-ring (14) is provided on the top of the air collecting hood (5), bumps are provided on both upper and lower sides of the outer wall of the baffle (6), and a sliding groove for limiting the bumps is provided on the inner wall of the air collecting hood (5).

8. The exhaust gas treatment device for cold heading machine according to claim 1, characterized in that: One end of the second connecting rod (9) away from the first connecting rod (8) is hinged to the baffle (6); the first connecting rod (8) rotates around the rotating shaft (7) as the axis; after the first connecting rod (8) rotates counterclockwise, it drives the two second connecting rods (9) to move in opposite directions.

9. The exhaust gas treatment device for cold heading machine according to claim 1, characterized in that: A clamping block is provided on the surface of the rotating shaft (7) near one side of the threaded rod (10); a cross groove (11) adapted to the clamping block is provided on the inner wall of the threaded rod (10); one end of the rotating shaft (7) is movably clamped inside the cross groove (11); and when the threaded rod (10) rotates, the cross groove (11) is used to circumferentially limit the clamping block on the rotating shaft (7).

10. The exhaust gas treatment device for cold heading machine according to claim 1, characterized in that: A gap is left between the bottom end of the air collecting hood (5) and the top of the cold heading machine body (1), and the exhaust gas purification component (2) contains a centrifugal fan, an activated carbon adsorber, a detection structure and a waste oil recovery structure.

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