Punching machine for producing air guide ring of axial flow fan

Abstract

The invention discloses a punching machine for producing an air guide ring of an axial flow fan, a grinding device further comprises a circular concave plate, an arc-shaped connecting rod is fixedly connected to the outer side of the circular concave plate, hard brushes are fixedly connected to the two sides of built-in grinding blocks, the top of the arc-shaped connecting rod is fixedly connected to the bottom of a mold table, and a plurality of built-in grinding blocks are arranged. The punching machine comprises a circular concave plate, a plurality of built-in grinding blocks and a plurality of arc-shaped long holes, the plurality of built-in grinding blocks are uniformly distributed on the inner wall of the circular concave plate, and the plurality of arc-shaped long holes are uniformly distributed on the inner wall of the circular concave plate. A stamping surface at the bottom of the rotating stamping block is polished and cleaned through a built-in grinding block, the situation that the surface of the stamping head gradually becomes rough and unsmooth due to long-time stamping collision of the stamping head is prevented, and the stamping surface at the bottom of the rotating stamping block is subjected to friction cleaning through a hard brush; and a large amount of polished and cleaned scrap iron is prevented from adhering to the bottom surface of the stamping block to affect the subsequent stamping quality.

Description

Technical Field

[0001] The invention relates to the technical field of stamping air guide rings, and in particular to a stamping machine for producing air guide rings of axial flow fans. Background Art

[0002] Axial flow fans, also known as local ventilators, are a type of fan commonly used in industrial and mining enterprises. Axial flow fans are mainly composed of fan impellers and casings. Axial flow fans can be divided into steel fans, anti-corrosion fans, PVC fans, and stainless steel fans. Axial flow fans are usually used in situations where flow requirements are high and pressure requirements are low. They can be used for ventilation or heat dissipation in metallurgy, chemical industry, light industry, food, medical equipment, mechanical equipment, and civil buildings. The air guide ring is an accessory that can guide air to the impeller blade inlet of the fan, thereby improving the performance of the fan. The air guide ring is often installed at the air inlet of the fan, which helps to reduce the noise caused by air turbulence and make the air flow smoother. The characteristics and advantages of the air guide ring: guiding air, reducing noise, preventing secondary entry of exhaust gas, reliable and durable, rust-proof and anti-oxidation; The production and processing of air guide rings usually uses stamping. When stamping the air guide ring, the surface gradually becomes rough and not smooth due to the long-term stamping and collision of the punch head, and the stamping surface may even be incomplete and damaged, which seriously affects the stamping quality of the subsequent air guide ring. Therefore, we proposed a stamping machine for the production of air guide rings of axial flow fans. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a punching machine for producing an air guide ring of an axial flow fan, comprising: A die table, which is used to place the template to be stamped; An annular frame plate, which is used to engage and limit the template, and the shape of the inner ring of the annular frame plate is consistent with the shape and size of the template to prevent the template from being offset and dislocated due to external force when stamping. A threaded rod is provided at the bottom of the annular frame plate; A grinding device is used to grind and clean the bottom surface of the stamped parts to prevent the surface from becoming rough and uneven due to long-term stamping and collision of the stamping head; A wall cleaning device is used to scrape and clean the inner wall of the die hole of the die table to prevent iron filings and other debris from remaining on the inner wall of the die groove after multiple stamping of the template; A cleaning device, which is used to scrape and clean the surface of the mold table where the template is to be placed, to prevent the surface of the mold table where the template is to be placed from gradually accumulating iron filings and other debris that affect the stamping depth of the template; The top of the threaded rod passes through the mold table and is threadedly connected to the mold table. The bottom of the annular frame plate is rotatably connected to the top of the threaded rod through a rotating bolt. Two threaded rods are provided, and the two threaded rods are evenly distributed at the bottom of the annular frame plate. The top of the grinding device is fixedly connected to the bottom of the mold table. Wherein, the grinding device comprises: Built-in grinding block, which grinds and cleans the stamping parts by rotating on the bottom surface of the stamping parts. The built-in grinding block grinds and cleans the stamping surface at the bottom of the rotating stamping block to prevent the stamping head from gradually becoming rough and not smooth due to long-term stamping collision; The bottom of the mold table is fixedly connected with a bottom round rod, the bottom of the bottom round rod is fixedly connected with a concave frame plate, the inner side of the concave frame plate is fixedly connected with a motor, the driving shaft of the motor is fixedly connected with a bidirectional electric telescopic rod, the bottom of the bidirectional electric telescopic rod is fixedly connected with a punching block, the bottom of the annular frame plate is fixedly connected with a bottom square plate, the bottom of the annular frame plate is fixedly connected with a sliding rod, a circular mold hole is opened on the top of the mold table, and square grooves are opened all around the top of the mold table; The wall cleaning device is sleeved on the stamping block and fixedly connected to the stamping block, one side of the cleaning device is fixedly connected to the outer side of the stamping block, four cleaning devices are provided, and the four cleaning devices are evenly distributed on the outer side of the stamping block, the top of the sliding rod passes through the mold table and is slidably connected to the mold table, and four bottom square plates are provided, and the four bottom square plates are evenly distributed on the bottom of the annular frame plate; The grinding device also includes a circular concave plate, an arc-shaped connecting rod is fixedly connected to the outer side of the circular concave plate, and hard brushes are fixedly connected to both sides of the built-in grinding block. The hard brush rubs and cleans the stamping surface of the bottom of the rotating stamping block to prevent a large amount of iron filings cleaned by grinding from adhering to the bottom surface of the stamping block, which affects the subsequent stamping quality. The hard brush is moved and removed by the rotating contact of the stamping block to prevent the hard brush from being mixed with too much cleaned iron filings after long-term use, which affects the subsequent cleaning efficiency. The inner wall of the circular concave plate is provided with an arc-shaped long hole, and the iron filings cleaned in the circular concave plate are discharged by providing a plurality of arc-shaped long holes, so as to prevent the cleaned iron filings from accumulating in large quantities between the built-in grinding block and the hard brush in the circular concave plate and affecting the subsequent grinding effect. The top of the arc-shaped connecting rod is fixedly connected to the bottom of the mold table, a plurality of built-in grinding blocks are provided, and the plurality of built-in grinding blocks are evenly distributed on the inner wall of the circular concave plate, and a plurality of arc-shaped long holes are provided, and the plurality of arc-shaped long holes are evenly distributed on the inner wall of the circular concave plate.

[0004] Furthermore, the wall cleaning device includes an annular scraper, which performs rotational scraping and cleaning on the inner wall of the circular die hole to prevent iron filings residues remaining on the forming template from being attached to the inner wall of the circular die hole and affecting the quality of subsequent template forming. An arc-shaped inclined hole is provided on the outer side of the annular scraper. By providing a plurality of arc-shaped inclined holes, it is convenient to discharge the cleaned iron filings in time, and prevent a large amount of iron filings cleaned by the annular scraper from accumulating between the outer side of the stamping block and the inner wall of the circular die hole and being difficult to handle. The bottom of the annular scraper is fixedly connected to a first wave plate, and the bottom of the annular scraper is fixedly connected to a second wave plate. The first wave plate and the second wave plate cover both sides of the arc-shaped inclined holes to prevent a large amount of iron filings from being cleaned. The iron filings that have been sorted off will adhere to the inner wall of the circular die hole or the surface of the stamping block again when they fall downwards, and the small amount of iron filings attached to the inner wall will also be thrown out when the first wave plate and the second wave plate gradually extend to a plane, so as to prevent a large amount of fallen iron filings from being concentrated and accumulated in the corrugated grooves of the first wave plate and the second wave plate and causing blockage. The annular scraper sleeve is arranged on the stamping block and is fixedly connected to the stamping block, a plurality of arc-shaped inclined holes are provided, and the plurality of arc-shaped inclined holes are evenly distributed on the outside of the annular scraper, a plurality of first wave plates are provided, and the plurality of first wave plates are evenly distributed at the bottom of the annular scraper, a plurality of second wave plates are provided, and the plurality of second wave plates are evenly distributed at the bottom of the annular scraper.

[0005] Furthermore, the cleaning device includes a corrugated soft plate, which scrapes and cleans the surface of the mold table when it rotates, so as to prevent the surface of the mold table where the template needs to be placed from gradually accumulating some iron filings and other debris that affect the stamping depth of the template. When the corrugated soft plate is extended to a plane, it covers the entire surface of the mold table, so as to prevent the corrugated soft plate from being difficult to clean the oblique corners of the mold table surface due to length limitations. The outer side of the corrugated soft plate is provided with a corrugated surface concave hole, and the corrugated surface concave hole is provided to prevent the iron filings on one side of the corrugated soft plate from piling up too high, so as to prevent the iron filings at high places from being difficult to be quickly discharged to the outer side of the mold table when the iron filings are piled up too high, resulting in discharge. The chip removal efficiency is slow, and arc-shaped thorn blocks are fixedly connected on both sides of the corrugated soft plate. The arc-shaped thorn blocks scrape and clean the threaded surface of the threaded rod to prevent some iron chips from being thrown onto the threaded surface of the threaded rod, causing it to get stuck during threaded mating. One side of the corrugated soft plate is fixedly connected to the outer side of the stamping block. Four corrugated soft plates are provided, and the four corrugated soft plates are evenly distributed on the outside of the stamping block. A plurality of wave surface concave holes are provided, and a plurality of the wave surface concave holes are evenly distributed on the outside of the stamping block. A plurality of arc-shaped thorn blocks are provided, and a plurality of the arc-shaped thorn blocks are evenly distributed on both sides of the corrugated soft plate.

[0006] The present invention has the beneficial effects: 1. The present invention grinds and cleans the stamping surface of the bottom of the rotating stamping block through a built-in grinding block to prevent the surface from becoming gradually rough and uneven due to long-term stamping and collision of the stamping head. The annular scraper performs rotational scraping and cleaning on the inner wall of the circular die hole to prevent the iron filings and residues remaining on the forming template attached to the inner wall of the circular die hole from affecting the quality of subsequent template forming. When the corrugated soft plate rotates, the surface of the mold table is scraped and cleaned to prevent the surface of the mold table where the template needs to be placed from gradually accumulating some iron filings and other debris that affect the stamping depth of the template.

[0007] 2. The present invention provides a grinding device, wherein a built-in grinding block grinds and cleans the stamping surface of the bottom of the rotating stamping block to prevent the surface of the stamping head from gradually becoming rough and non-smooth due to long-term stamping and collision. A hard brush rubs and cleans the stamping surface of the bottom of the rotating stamping block to prevent a large amount of iron filings cleaned by grinding from adhering to the bottom surface of the stamping block and affecting the subsequent stamping quality. A plurality of arc-shaped long holes are provided to discharge the iron filings cleaned in the circular concave plate to prevent a large amount of iron filings cleaned from accumulating between the built-in grinding block and the hard brush in the circular concave plate and affecting the subsequent grinding effect. The hard brush is moved by the rotating contact of the stamping block to remove chips, to prevent the hard brush from being mixed with too many cleaned iron filings after long-term use and affecting the subsequent cleaning efficiency.

[0008] 3. The present invention provides a wall cleaning device, and the annular scraper blade performs rotational scraping and cleaning on the inner wall of the circular die hole, so as to prevent the iron filings residues remaining on the forming template from adhering to the inner wall of the circular die hole and affecting the quality of subsequent template forming. By providing a plurality of arc-shaped inclined holes, it is convenient to discharge the cleaned iron filings in time, and prevent a large amount of iron filings cleaned by the annular scraper blade from accumulating between the outer side of the stamping block and the inner wall of the circular die hole and being difficult to handle. The arc-shaped inclined holes of the first wave plate and the second wave plate are covered on both sides, so as to prevent a large amount of cleaned iron filings from falling downward and adhering to the inner wall of the circular die hole or the surface of the stamping block again. When the first wave plate and the second wave plate gradually extend to a plane, a small amount of iron filings adhering to the inner wall are also thrown out, so as to prevent a large amount of fallen iron filings from accumulating in the waveform concave gap between the first wave plate and the second wave plate and causing blockage.

[0009] 4. The present invention provides a cleaning device to scrape and clean the surface of the mold table when the corrugated soft plate rotates, thereby preventing iron filings and other debris from gradually accumulating on the surface of the mold table where the template needs to be placed, which may affect the stamping depth of the template. When the corrugated soft plate is extended to a plane, it covers the entire surface of the mold table, thereby preventing the corrugated soft plate from being difficult to clean the oblique angles of the mold table surface due to length limitations. By providing wave surface concave holes, iron filings on one side of the corrugated soft plate will not accumulate too high, thereby preventing iron filings from piling up too high and being difficult to quickly discharge to the outside of the mold table, resulting in slow chip removal efficiency. The arc-shaped barb block scrapes and cleans the threaded surface of the threaded rod, thereby preventing some iron filings from being thrown onto the threaded surface of the threaded rod, which may cause it to get stuck during thread mating. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the punching machine of the present invention; Figure 2 It is a schematic diagram of the side cross-section structure of the bottom of the punching machine of the present invention; Figure 3 This is a schematic diagram of the bottom structure of the grinding device of the present invention; Figure 4 It is a schematic diagram of the structure of the grinding device of the present invention; Figure 5 It is a schematic diagram of the structure of the wall cleaning device of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the wall cleaning device of the present invention; Figure 7 It is a schematic diagram of the structure of the cleaning device of the present invention; Figure 8 It is a schematic diagram of the partial structure of the cleaning device of the present invention; In the figure: 1. mold table; 2. annular frame plate; 3. threaded rod; 4. grinding device; 5. wall cleaning device; 6. cleaning device; 7. bottom round rod; 8. concave frame plate; 9. motor; 10. two-way electric telescopic rod; 11. punching block; 12. bottom square plate; 13. sliding rod; 14. circular mold hole; 15. square groove; 401. circular concave plate; 402. arc connecting rod; 403. built-in grinding block; 404. hard brush; 405. arc long hole; 501. annular scraper; 502. arc inclined hole; 503. first wave plate; 504. second wave plate; 601. corrugated soft plate; 602. wave surface concave hole; 603. arc thorn block. DETAILED DESCRIPTION

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0012] For the first embodiment, please refer to Figure 1-Figure 4 The present invention is a punching machine for producing an air guide ring of an axial flow fan, comprising: A die table 1, which is used to place the template to be stamped; The annular frame plate 2 is used to engage and limit the template, and the shape of the inner ring of the annular frame plate 2 is consistent with the shape and size of the template to prevent the template from being offset and misaligned due to external forces when stamping. A threaded rod 3 is provided at the bottom of the annular frame plate 2; A grinding device 4, which is used to grind and clean the bottom surface of the stamped parts; A wall cleaning device 5, which is used to scrape and clean the inner wall of the die hole of the die table 1; A cleaning device 6, which is used to scrape and clean the surface of the mold table 1 where the template is to be placed; The top of the threaded rod 3 passes through the mold table 1 and is threadedly connected to the mold table 1. The bottom of the annular frame plate 2 is rotatably connected to the top of the threaded rod 3 through a rotating bolt. Two threaded rods 3 are provided, and the two threaded rods 3 are evenly distributed at the bottom of the annular frame plate 2. The top of the grinding device 4 is fixedly connected to the bottom of the mold table 1. Wherein, the grinding device 4 comprises: A built-in grinding block 403, which grinds and cleans the stamped component by rotating on the bottom surface thereof; The bottom of the mold table 1 is fixedly connected with a bottom round rod 7, the bottom of the bottom round rod 7 is fixedly connected with a concave frame plate 8, the inner side of the concave frame plate 8 is fixedly connected with a motor 9, the driving shaft of the motor 9 is fixedly connected with a two-way electric telescopic rod 10, the bottom of the two-way electric telescopic rod 10 is fixedly connected with a punching block 11, the bottom of the annular frame plate 2 is fixedly connected with a bottom square plate 12, the bottom of the annular frame plate 2 is fixedly connected with a sliding rod 13, a circular mold hole 14 is opened on the top of the mold table 1, and square grooves 15 are opened all around the top of the mold table 1; The wall cleaning device 5 is sleeved on the punching block 11 and fixedly connected to the punching block 11. One side of the cleaning device 6 is fixedly connected to the outer side of the punching block 11. Four cleaning devices 6 are provided, and the four cleaning devices 6 are evenly distributed on the outer side of the punching block 11. The top of the sliding rod 13 passes through the mold table 1 and is slidably connected to the mold table 1. Four bottom square plates 12 are provided, and the four bottom square plates 12 are evenly distributed on the bottom of the annular frame plate 2. The grinding device 4 also includes a circular concave plate 401, an arc-shaped connecting rod 402 is fixedly connected to the outer side of the circular concave plate 401, hard brushes 404 are fixedly connected to both sides of the built-in grinding block 403, and an arc-shaped long hole 405 is opened on the inner wall of the circular concave plate 401; The top of the arc-shaped connecting rod 402 is fixedly connected to the bottom of the mold table 1, a plurality of built-in grinding blocks 403 are provided, and the plurality of built-in grinding blocks 403 are evenly distributed on the inner wall of the circular concave plate 401, a plurality of arc-shaped long holes 405 are provided, and the plurality of arc-shaped long holes 405 are evenly distributed on the inner wall of the circular concave plate 401. When in use, the template to be processed is placed on the bottom square plate 12 in the annular frame plate 2, the inner wall of the annular frame plate 2 is in contact with the outer side of the template and the template is snapped and positioned, and then the bottom punching block 11 is pushed downward by the bidirectional electric telescopic rod 10, and the punching block 11 moves downward until it contacts the template and punches the template downward, and the template is subjected to the punching pressure so that a part of the plane is bent into the circular die hole 14 and gradually approaches the circular die hole 14 The inner wall contacts the inner wall of the circular die hole 14. After the template is punched to a certain depth and formed, the punching block 11 is driven by the bidirectional electric telescopic rod 10 to move back upward to the top of the circular die hole 14 and away from the top of the circular die hole 14 for a distance. At this time, the two threaded rods 3 are manually rotated at the same time to make the threaded rod 3 rotate upward. When the threaded rod 3 rotates upward, it pushes the top annular frame plate 2 to move together. The movement of the annular frame plate 2 drives the bottom bottom square plate 12 to move. When the bottom square plate 12 moves, it drives the top forming template to move upward and remove the material from the circular die hole 14. Then, the forming template that has been removed from the bottom square plate 12 is removed, and the motor 9 is started to drive the bidirectional electric telescopic rod 10 to rotate. The rotation of the bidirectional electric telescopic rod 10 drives the outer The wall cleaning device 5 and the cleaning device 6 rotate together. When the cleaning device 6 rotates to the point where it is not in the same vertical line as the bottom square plate 12, the punching block 11 is pushed downward by the bidirectional electric telescopic rod 10 to drive the wall cleaning device 5 and the cleaning device 6 to move downward together. When the punching block 11 moves downward into the circular die hole 14, the wall cleaning device 5 performs a scraping cleaning on the circular die hole 14. At the same time, when the cleaning device 6 moves downward to the surface of the die table 1 as the punching block 11, it performs a rotational scraping cleaning. When the cleaning device 6 moves downward to the surface of the die table 1, the bottom surface of the punching block 11 also contacts the grinding device 4. The grinding device 4 performs a smooth grinding on the bottom surface of the rotating punching block 11. The punching block 11 rotates downward to the inner side of the circular concave plate 401 and contacts the built-in grinding block 403. The built-in grinding block 403 grinds and cleans the stamping surface at the bottom of the rotating stamping block 11. At the same time, the hard brushes 404 on both sides of the built-in grinding block 403 also contact the stamping surface at the bottom of the stamping block 11. The hard brushes 404 rub and clean the stamping surface at the bottom of the rotating stamping block 11. At the same time, the iron filings cleaned by the built-in grinding block 403 and the hard brush 404 fall on the inner side of the circular concave plate 401 and fall downward through the arc-shaped long hole 405. The iron filings cleaned in the circular concave plate 401 are discharged by opening a plurality of arc-shaped long holes 405. When the hard brushes 404 on both sides of the built-in grinding block 403 contact the bottom surface of the rotating stamping block 11, they are also driven to be moved. The hard brushes 404 are moved to remove chips by the rotating contact of the stamping block 11.

[0013] For the second embodiment, please refer to Figure 1-Figure 8 The present invention provides a punching machine for producing an air guide ring of an axial flow fan: the wall cleaning device 5 includes an annular scraping blade 501, an arc-shaped inclined hole 502 is opened on the outer side of the annular scraping blade 501, a first wave plate 503 is fixedly connected to the bottom of the annular scraping blade 501, a second wave plate 504 is fixedly connected to the bottom of the annular scraping blade 501, the annular scraping blade 501 is sleeved on the stamping block 11 and fixedly connected to the stamping block 11, a plurality of arc-shaped inclined holes 502 are provided, and the plurality of arc-shaped inclined holes 502 are evenly distributed on the outer side of the annular scraping blade 501, a plurality of first wave plates 503 are provided, and the plurality of first wave plates 503 are evenly distributed at the bottom of the annular scraping blade 501, a plurality of second wave plates 504 are provided, and the plurality of second wave plates 504 are evenly distributed at the bottom of the annular scraping blade 501; The cleaning device 6 includes a corrugated soft plate 601, a corrugated surface concave hole 602 is provided on the outer side of the corrugated soft plate 601, arc-shaped thorn blocks 603 are fixedly connected to both sides of the corrugated soft plate 601, one side of the corrugated soft plate 601 is fixedly connected to the outer side of the stamping block 11, four corrugated soft plates 601 are provided, and the four corrugated soft plates 601 are evenly distributed on the outer side of the stamping block 11, a plurality of corrugated surface concave holes 602 are provided, and the plurality of corrugated surface concave holes 602 are evenly distributed on the outer side of the stamping block 11, a plurality of arc-shaped thorn blocks 603 are provided, and the plurality of arc-shaped thorn blocks 603 are evenly distributed on both sides of the corrugated soft plate 601, and when in use, the annular scraper blade 501 moves down a certain distance as the stamping block 11 rotates. When the circular die hole 14 is entered, it contacts the inner wall of the circular die hole 14, and the annular scraper blade 501 performs a rotational scraping and cleaning of the inner wall of the circular die hole 14. At the same time, a large amount of iron filings scraped by the annular scraper blade 501 promptly fall downward through the arc-shaped inclined hole 502. By providing a plurality of arc-shaped inclined holes 502, it is convenient for the cleaned iron filings to be discharged in time. The iron filings falling downward from the arc-shaped inclined holes 502 are smoothly discharged downward between the first wave plate 503 and the second wave plate 504. The first wave plate 503 and the second wave plate 504 cover both sides of the arc-shaped inclined hole 502. When the annular scraper blade 501 moves out of the circular die hole 14 along with the punch block 11, the annular scraper blade 501 rotates to drive the bottom The first wave plate 503 rotates with the second wave plate 504. When the first wave plate 503 and the second wave plate 504 rotate, they are tilted and stretched outward by the centrifugal force. When the first wave plate 503 and the second wave plate 504 gradually stretch to a plane, a small amount of iron filings attached to the inner wall are also thrown outward. When the corrugated soft plate 601 moves down to the surface of the mold table 1 along with the punching block 11, the motor 9 is started again to drive the corrugated soft plate 601 to rotate together through the punching block 11. When the corrugated soft plate 601 rotates, the surface of the mold table 1 is scraped and cleaned. When the corrugated soft plate 601 rotates, it is gradually stretched outward to a plane shape by the centrifugal force. When the corrugated soft plate 601 stretches to the plane, it covers the entire mold table 1. When the corrugated soft plate 601 rotates, it pushes the iron filings on the surface of the mold table 1 to rotate together. When the iron filings rotate, they are also thrown out to the outside of the mold table 1 by the centrifugal force. When the iron filings pushed by one side of the corrugated soft plate 601 are piled up high, they will pass through the wave surface concave holes 602 and be dispersed on the mold table 1 again. By opening the wave surface concave holes 602, the iron filings on one side of the corrugated soft plate 601 will not accumulate too high. The corrugated soft plate 601 is extended to a plane shape to the arc-shaped thorn blocks 603 on both sides and are on the same circular path as the threaded rod 3. The arc-shaped thorn blocks 603 contact the surface of the threaded rod 3 as the corrugated soft plate 601 rotates, and the arc-shaped thorn blocks 603 scrape and clean the threaded surface of the threaded rod 3.

[0014] When the present invention is in operation, the template to be processed is placed on the bottom square plate 12 in the annular frame plate 2, the inner wall of the annular frame plate 2 is in contact with the outer side of the template and the template is snap-fitted and positioned, and then the bottom punching block 11 is pushed downward by the bidirectional electric telescopic rod 10. When the punching block 11 moves downward until it contacts the template, the template is punched downward. The punching pressure causes a part of the plane of the template to bend into the circular die hole 14 and gradually approach the inner wall of the circular die hole 14 and contact the inner wall of the circular die hole 14. After the template is punched and formed to a certain depth, the bidirectional electric telescopic rod 10 drives the punching block 11 to move back upward to the top of the circular die hole 14 and away from the top of the circular die hole 14 for a distance. At this time, the two threaded rods 3 are manually rotated at the same time so that the threaded rods 3 move upward Rotate and move, when the threaded rod 3 rotates upward, it pushes the top annular frame plate 2 to move together, and the movement of the annular frame plate 2 drives the bottom square plate 12 to move, and when the bottom square plate 12 moves, it drives the top forming template to move upward together and remove the material from the circular die hole 14, and then remove the forming template that has been removed from the bottom square plate 12, and then start the motor 9 to drive the two-way electric telescopic rod 10 to rotate, and the rotation of the two-way electric telescopic rod 10 drives the outer wall cleaning device 5 and the cleaning device 6 to rotate together. When the cleaning device 6 rotates to the point where it is not in the same vertical line as the bottom square plate 12, the two-way electric telescopic rod 10 pushes the stamping block 11 downward to drive the wall cleaning device 5 and the cleaning device 6 to move downward together, and the wall cleaning device 5 moves down to the circular die hole 14 along with the stamping block 11. When the circular die hole 14 is in the hole 14, the circular die hole 14 is scraped and cleaned. At the same time, the cleaning device 6 also performs rotational scraping and cleaning as the stamping block 11 moves down to the surface of the die table 1. When the cleaning device 6 moves down to the surface of the die table 1, the bottom surface of the stamping block 11 also contacts the grinding device 4. The grinding device 4 grinds the bottom surface of the rotating stamping block 11 smoothly. The stamping block 11 rotates down to the inner side of the circular concave plate 401 and contacts the built-in grinding block 403. The built-in grinding block 403 grinds and cleans the stamping surface of the bottom of the rotating stamping block 11. At the same time, the hard brushes 404 on both sides of the built-in grinding block 403 also contact the stamping surface of the bottom of the stamping block 11. The hard brushes 404 rub and clean the stamping surface of the bottom of the rotating stamping block 11. At the same time, the built-in grinding block 4 03 and the iron filings cleaned by the hard brush 404 fall on the inner side of the circular concave plate 401 and fall downward through the arc-shaped long hole 405. The iron filings cleaned in the circular concave plate 401 are discharged by opening a plurality of arc-shaped long holes 405. The hard brushes 404 on both sides of the built-in grinding block 403 are also driven to be moved when they contact the bottom surface of the rotating punching block 11. The hard brushes 404 are moved to remove the chips by the rotation of the punching block 11. The annular scraper blade 501 moves downward with the rotation of the punching block 11 and enters the circular die hole 14 and contacts the inner wall of the circular die hole 14. The annular scraper blade 501 performs rotational scraping and cleaning on the inner wall of the circular die hole 14. At the same time, a large amount of iron filings scraped by the annular scraper blade 501 fall downward through the arc-shaped inclined hole 502 in time.By providing a plurality of arc-shaped inclined holes 502, it is convenient for the cleaned iron filings to be discharged in time, and the iron filings falling downward from the arc-shaped inclined holes 502 are smoothly discharged downward between the first wave plate 503 and the second wave plate 504, and the first wave plate 503 and the second wave plate 504 cover both sides of the arc-shaped inclined holes 502, and when the annular scraper blade 501 moves out of the circular die hole 14 along with the punching block 11, the annular scraper blade 501 rotates to drive the first wave plate 503 and the second wave plate 504 at the bottom to rotate together, and the first wave plate 503 and the second wave plate 504 are tilted and stretched outwardly due to the centrifugal force when they rotate, and a small amount of iron filings attached to the inner wall are also thrown outward when the first wave plate 503 and the second wave plate 504 gradually stretch to a plane, and when the corrugated soft plate 601 moves down to the surface of the die table 1 along with the punching block 11, the motor 9 is started again to drive the corrugated soft plate 601 to rotate together through the punching block 11, and the corrugated soft plate 60 1 is rotated to scrape and clean the surface of the mold table 1. When the corrugated soft plate 601 rotates, it is gradually extended outward to a plane shape by the centrifugal force. When the corrugated soft plate 601 is extended to a plane, it covers the entire surface of the mold table 1. When the corrugated soft plate 601 rotates, it pushes the iron filings on the surface of the mold table 1 to rotate together. When the iron filings rotate, they are also thrown out to the outside of the mold table 1 by the centrifugal force. When the iron filings pushed by one side of the corrugated soft plate 601 are piled up high, they will pass through the wave surface concave hole 602 and be dispersed on the mold table 1 again. By opening the wave surface concave hole 602, the iron filings on one side of the corrugated soft plate 601 will not accumulate high. The corrugated soft plate 601 is extended to a plane shape until the arc-shaped thorn blocks 603 on both sides are on the same circumferential path as the threaded rod 3. The arc-shaped thorn blocks 603 contact the surface of the threaded rod 3 as the corrugated soft plate 601 rotates, and the arc-shaped thorn blocks 603 scrape and clean the threaded surface of the threaded rod 3.

[0015] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A punching machine for producing air guide rings of axial flow fans, characterized in that: include: A die table (1), the die table (1) being used to place a die plate to be stamped; An annular frame plate (2), the annular frame plate (2) being used for locking and limiting the template, and the shape of the inner ring of the annular frame plate (2) being consistent with the shape and size of the template, and a threaded rod (3) being provided at the bottom of the annular frame plate (2); A grinding device (4), the grinding device (4) is used to grind and clean the bottom surface of the stamped component; A wall cleaning device (5), the wall cleaning device (5) being used to scrape and clean the inner wall of the die hole of the die table (1); A cleaning device (6), the cleaning device (6) being used to scrape and clean the surface of the mold table (1) that requires the template; The top of the threaded rod (3) passes through the mold table (1) and is threadedly connected to the mold table (1); the bottom of the annular frame plate (2) is rotatably connected to the top of the threaded rod (3) via a rotating bolt; two threaded rods (3) are provided, and the two threaded rods (3) are evenly distributed at the bottom of the annular frame plate (2); the top of the grinding device (4) is fixedly connected to the bottom of the mold table (1); Wherein, the grinding device (4) comprises: The built-in grinding block (403) is used to grind and clean the bottom surface of the stamped component by rotating on the bottom surface of the stamped component.

2. A punching machine for producing air guide rings of axial flow fans according to claim 1, characterized in that: The bottom of the mold table (1) is fixedly connected to a bottom round rod (7), the bottom of the bottom round rod (7) is fixedly connected to a concave frame plate (8), the inner side of the concave frame plate (8) is fixedly connected to a motor (9), the driving shaft of the motor (9) is fixedly connected to a bidirectional electric telescopic rod (10), the bottom of the bidirectional electric telescopic rod (10) is fixedly connected to a punching block (11), the bottom of the annular frame plate (2) is fixedly connected to a bottom square plate (12), the bottom of the annular frame plate (2) is fixedly connected to a sliding rod (13), a circular mold hole (14) is provided on the top of the mold table (1), and square grooves (15) are provided around the top of the mold table (1).

3. A punching machine for producing air guide rings of axial flow fans according to claim 2, characterized in that: The wall cleaning device (5) is sleeved on the punching block (11) and fixedly connected to the punching block (11); one side of the cleaning device (6) is fixedly connected to the outer side of the punching block (11); four cleaning devices (6) are provided, and the four cleaning devices (6) are evenly distributed on the outer side of the punching block (11); the top of the sliding rod (13) passes through the mold table (1) and is slidably connected to the mold table (1); four bottom square plates (12) are provided, and the four bottom square plates (12) are evenly distributed on the bottom of the annular frame plate (2).

4. The punching machine for producing the air guide ring of an axial flow fan according to claim 1, characterized in that: The grinding device (4) further comprises a circular concave plate (401), the outer side of the circular concave plate (401) is fixedly connected to an arc-shaped connecting rod (402), both sides of the built-in grinding block (403) are fixedly connected to hard brushes (404), and the inner wall of the circular concave plate (401) is provided with an arc-shaped long hole (405).

5. The punching machine for producing the air guide ring of an axial flow fan according to claim 4, characterized in that: The top of the arc-shaped connecting rod (402) is fixedly connected to the bottom of the mold table (1), a plurality of built-in grinding blocks (403) are provided, and the plurality of built-in grinding blocks (403) are evenly distributed on the inner wall of the circular concave plate (401), and a plurality of arc-shaped long holes (405) are provided, and the plurality of arc-shaped long holes (405) are evenly distributed on the inner wall of the circular concave plate (401).

6. The punching machine for producing the air guide ring of an axial flow fan according to claim 1, characterized in that: The wall cleaning device (5) comprises an annular scraping blade (501), an arc-shaped inclined hole (502) is provided on the outer side of the annular scraping blade (501), a first wave plate (503) is fixedly connected to the bottom of the annular scraping blade (501), and a second wave plate (504) is fixedly connected to the bottom of the annular scraping blade (501).

7. A punching machine for producing air guide rings of axial flow fans according to claim 6, characterized in that: The annular scraping blade (501) is sleeved on the punching block (11) and fixedly connected to the punching block (11); a plurality of arc-shaped inclined holes (502) are provided, and the plurality of arc-shaped inclined holes (502) are evenly distributed on the outside of the annular scraping blade (501).

8. The punching machine for producing the air guide ring of an axial flow fan according to claim 6, characterized in that: A plurality of the first wave plates (503) are provided, and the plurality of first wave plates (503) are evenly distributed at the bottom of the annular scraper (501); a plurality of the second wave plates (504) are provided, and the plurality of second wave plates (504) are evenly distributed at the bottom of the annular scraper (501).

9. The punching machine for producing the air guide ring of an axial flow fan according to claim 1, characterized in that: The cleaning device (6) comprises a corrugated soft plate (601), the outer side of the corrugated soft plate (601) is provided with a corrugated surface concave hole (602), and both sides of the corrugated soft plate (601) are fixedly connected with arc-shaped thorn blocks (603).

10. A punching machine for producing air guide rings of axial flow fans according to claim 9, characterized in that: One side of the corrugated soft plate (601) is fixedly connected to the outer side of the punching block (11); four corrugated soft plates (601) are provided, and the four corrugated soft plates (601) are evenly distributed on the outer side of the punching block (11); a plurality of corrugated surface concave holes (602) are provided, and the plurality of corrugated surface concave holes (602) are evenly distributed on the outer side of the punching block (11); a plurality of arc-shaped thorn blocks (603) are provided, and the plurality of arc-shaped thorn blocks (603) are evenly distributed on both sides of the corrugated soft plate (601).

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