Punching and forming equipment and process based on cylinder gasket production

Abstract

This invention relates to a punching and forming equipment and process for cylinder gasket production, belonging to the field of punching equipment technology. It includes a punching machine body with an equipment table mounted on it, and a pressure device mounted on the machine body at the top of the equipment table. Multiple die holes are formed on the equipment table. During the punching process, the bottom die rod consistently applies an upward supporting force to the punched portion of the substrate strip, eliminating defects such as corner collapse, warping, and burrs caused by suspension at the punching point, effectively improving hole position accuracy and cross-sectional quality. Simultaneously, the pre-punching air groove uses negative pressure to pre-extract residual debris from the equipment table, preventing debris from being trapped between the substrate strip and the equipment table, thus ensuring uniform force distribution on all parts of the substrate strip during punching and guaranteeing consistent punching quality for each cylinder gasket in batch production.

Description

Technical Field

[0001] This invention relates to the field of punching equipment technology, specifically to a punching forming equipment and process based on cylinder gasket production. Background Technology

[0002] A punching and forming equipment for cylinder head gasket production is a specialized processing device used to punch holes for cylinder head gaskets onto a metal substrate strip. As a sealing element between the engine block and cylinder head, the cylinder head gasket has cylinder bores, water holes, oil holes, and multiple mounting holes. The accuracy of the hole positions and the quality of the cross-section directly affect the engine's sealing performance. The punching and forming equipment uses a pressure device to drive a punching rod downwards, cutting the substrate strip at the die hole position, thereby forming the required holes on the substrate strip. The finished cylinder head gasket is then obtained through slitting.

[0003] However, existing punching and forming equipment based on cylinder gasket production has many shortcomings in use. First, during the punching process, the part of the substrate strip to be punched is in a suspended state, lacking effective support, which easily leads to defects such as corner collapse, warping, and burrs, seriously affecting the hole position accuracy and cross-sectional quality. Second, there is a lack of effective collection and treatment methods for the waste and debris generated during punching. Waste is easily stuck in the die hole or scattered on the equipment table, interfering with subsequent punching operations and even causing die damage; if debris remains between the equipment table and the substrate strip, it will cause uneven adhesion of the substrate strip, uneven force during punching, and further reduce the punching quality. Summary of the Invention

[0004] The purpose of this invention is to provide a punching and forming equipment and process for cylinder head gasket production. This equipment utilizes a liftable and tiltable negative pressure adsorption bottom mold rod to support the substrate during punching and adsorb waste material after punching, while simultaneously pre-adsorbing debris from the worktable. This eliminates punching suspension, avoids waste material jumping and backfilling, ensures uniform stress on the substrate adhesion, and improves the hole position accuracy, cross-sectional quality, and continuous production efficiency of the cylinder head gasket. To achieve the above objectives, this invention adopts the following technical solution: A punching and forming equipment and process for cylinder head gasket production includes a punching machine body, a worktable mounted on the punching machine body, and a pressure device mounted on the punching machine body, located at the top of the worktable. The machine platform has multiple die holes. At the bottom of the pressure equipment, multiple punching rods are fixedly connected to the position of each die hole. A clamping roller is installed on each side of the punching machine body. A substrate belt is conveyed between the two clamping rollers. The punching machine body is equipped with auxiliary components, including a carrier box. The carrier box is located at the bottom of the machine platform and is hollow. Multiple bottom die rods corresponding to the die hole positions are fixedly connected to the top of the carrier box. The bottom die rods are inserted into the die holes. Each bottom die rod has an air groove. The air groove runs through the bottom die rod axially and the top of the air groove opens to the top surface of the bottom die rod. The air groove is connected to the cavity of the carrier box. A main shaft is fixedly connected to each side of the outer wall of the carrier box.

[0005] Two through slots are symmetrically opened on the equipment table. Two linear modules are symmetrically installed on the punching machine body. Each of the two linear modules has a pressure rod fixedly connected to its execution end. Each of the two pressure rods has a guide roller rotatably connected to its top. The guide rollers are in rolling contact with the lower surface of the substrate strip. The pressure rods are in sliding contact with the through slots. The pressure rods are L-shaped. A semi-circular groove is opened at the bottom of the horizontal arm of the pressure rod. The pressure rods are in extrusion contact with the main shaft through the semi-circular groove.

[0006] Furthermore, the auxiliary components also include a filter screen fixedly connected to the cavity of the carrier box, an air pipe fixedly connected to the bottom of the carrier box, an air pump fixedly connected to the bottom of the air pipe, the air pump fixedly connected to the bottom of the outer wall of the carrier box, multiple discharge slots opened on the top of the carrier box, and multiple cover plates bolted to the positions of the discharge slots on the top of the carrier box, two guide frames symmetrically fixedly connected inside the punching machine body, the two guide frames being slidably connected to a main shaft respectively, a gear fixedly connected to the end of one of the main shafts away from the carrier box, a connecting rod fixedly connected to the punching machine body, the connecting rod having multiple tooth grooves, and the gear meshing with the tooth grooves of the connecting rod.

[0007] Furthermore, each of the two main shafts is fixedly connected to a square plate, and each of the two guide frames is symmetrically and slidably connected to two side frames. The ends of the two side frames on the same guide frame that are away from the load-bearing box are jointly and fixedly connected to a connecting plate. The connecting plate is sleeved on the main shaft and rotates with the main shaft. Each side frame is slidably connected to a guide rod, and each guide rod is fixedly connected to a clamping plate at the end near the corresponding square plate. Each guide rod is fitted with a tension spring, and the two ends of the tension spring are fixedly connected to the end of the guide rod away from the clamping plate and the side frame, respectively. Each side frame is fixedly connected to a side plate on the side away from the main shaft. The side plate is slidably connected to the punching machine body. Each side plate is slidably connected to a support rod, and the support rod is fixedly connected to the punching machine body. Each support rod is fitted with a tension spring, and the two ends of the tension spring are fixedly connected to the punching machine body and the lower surface of the side plate, respectively.

[0008] Furthermore, the effective length of the toothed section on the connecting rod is equal to half the circumference of the gear's pitch circle, and the connecting rod drives the gear to rotate 180 degrees in a single engagement.

[0009] Furthermore, the square plate is designed with a square cross-section, and all four corners of the square cross-section of the square plate are rounded.

[0010] Furthermore, the clamping plate and the square plate are pressed together.

[0011] Furthermore, a cavity is provided on the punching machine body corresponding to the bottom position of the equipment table, and a door is provided on the side wall of the punching machine body corresponding to the position of the cavity.

[0012] A punching process based on cylinder head gasket production includes the following steps:

[0013] Step 1: Place the substrate strip into the clamping rollers on both sides of the punching machine body, so that the upper and lower rollers clamp the substrate strip inside. Adjust the position of the clamping rollers so that the substrate strip is suspended between the punching rod and the machine table. At the same time, make the guide rollers contact the lower surface of the substrate strip to form a support. Then drive the air pump to run, creating negative pressure in the bearing box. The debris scattered on the machine table is sucked into the bearing box through the air grooves on each bottom die rod and intercepted and collected by the filter screen.

[0014] Step 2: Drive the linear module to insert the pressure rod into the through groove and accommodate the guide roller. The clamping roller drives the substrate strip to move down synchronously so that it adheres to the equipment table. The air groove uses negative pressure to adsorb the lower surface of the substrate strip to stabilize its adhesion. Then drive the pressure device to move down, driving the punching rod to squeeze the substrate strip downward, causing it to shear and break at the die hole position, thus achieving separation hole.

[0015] Step 3: After punching, the waste material stripped from the punching enters the die hole and is adsorbed onto the top of the bottom die rod. The driving linear module causes the support rod to continue moving downward and passing through the through slot. The support rod abuts against the main shaft through the semi-circular groove at its bottom, pushing the main shaft to move the entire bearing box downward, causing each bottom die rod to be pulled out of the die hole. At the same time, the adsorbed waste material moves downward synchronously with the bottom die rod and detaches from the bottom end of the punching rod.

[0016] Step 4: During the downward movement of the main shaft, the gear meshes with the connecting rod, causing the main shaft to rotate 180 degrees. The bearing box rotates synchronously, so that the bottom mold rod with the waste material adsorbed faces downward. At this time, the air pump stops sucking air, and the waste material loses its adsorption force and falls from the bottom mold rod under the action of gravity, falling into the cavity at the bottom of the punching machine body, completing the waste material collection.

[0017] Step 5: The pressure device moves the punching rod upwards and resets, the clamping roller moves the substrate strip upwards to detach it from the equipment table, and the linear module moves the support rod upwards, lifting the substrate strip through the guide rollers. After the support rod moves upwards and disengages from the main shaft, the tension spring two moves the side plate back to its original position, causing the entire bearing box to move upwards. The gear and connecting rod tooth grooves re-mesh, causing the bearing box to flip and reset. The bottom die rod is reinserted into the die hole, ready for the next punching operation.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] During the punching process, the bottom die rod always applies an upward supporting force to the punched part of the substrate strip, eliminating defects such as collapsed corners, warping, and burrs caused by suspension at the punching point, effectively improving the hole position accuracy and cross-sectional quality. At the same time, the air groove before punching uses negative pressure to pre-extract the residual debris on the equipment table, avoiding debris from being padded between the substrate strip and the equipment table, which would cause uneven adhesion. This ensures that all parts of the substrate strip are evenly stressed during punching, thereby ensuring the consistency of the punching quality of each cylinder gasket in mass production.

[0020] After punching is completed, the waste material is adsorbed on the top of the bottom die rod. After the entire bearing box moves down and flips, the waste material automatically falls into the cavity of the punching machine body under the action of gravity and is collected in a concentrated manner, which effectively avoids the accumulation of waste material in the die hole and interference with subsequent operations.

[0021] When the substrate strip is suspended during the switching of the punching position, the guide rollers perform multi-point rolling support on the bottom of the substrate strip to keep it flat and prevent it from bending and sagging due to its own weight, ensuring that the punching position is accurately aligned with the die hole; at the same time, the clamping rollers drive the substrate strip upward to lift it off the equipment table before conveying it, avoiding friction between the substrate strip and the equipment table, effectively preventing surface scratches and ensuring the appearance quality of the finished cylinder gasket. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the positions of the punching machine body and the substrate strip of the present invention;

[0023] Figure 2 This is a schematic diagram showing the positions of the pressure device and the substrate strip of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram showing the positions of the guide frame and the substrate strip of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0027] Figure 6 For the present invention Figure 4 Enlarged view of point C in the middle;

[0028] Figure 7 This is a schematic diagram showing the positions of the through slot and the support rod of the present invention;

[0029] Figure 8 This is a schematic diagram showing the positions of the carrier box and filter screen in this invention;

[0030] Figure 9 For the present invention Figure 8 Enlarged view of point D;

[0031] Figure 10 This is a schematic diagram showing the positions of the bearing box and the bottom mold rod of the present invention;

[0032] Figure 11 This is a schematic diagram showing the positions of the gears and connecting rods of the present invention.

[0033] In the picture:

[0034] 11. Punching machine body; 12. Machine table; 13. Pressing equipment; 14. Die hole; 15. Punching rod; 16. Clamping roller; 17. Substrate strip;

[0035] 21. Carrier box; 22. Bottom mold rod; 23. Air groove; 24. Filter screen; 25. Air pipe; 26. Air pump; 27. Cover plate; 28. Guide frame; 29. ​​Main shaft; 210. Gear; 211. Connecting rod; 212. Square plate; 213. Side frame; 214. Connecting plate; 215. Guide rod; 216. Clamping plate; 217. Tension spring one; 218. Side plate; 219. Support rod; 220. Tension spring two; 221. Through groove; 222. Linear module; 223. Support rod; 224. Guide roller. Detailed Implementation

[0036] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0037] Example 1:

[0038] Reference Figures 1 to 11 As shown, a punching and forming equipment based on cylinder gasket production includes a punching machine body 11, an equipment table 12 mounted on the punching machine body 11, a pressure device 13 mounted on the punching machine body 11, the pressure device 13 being located on the top of the equipment table 12, a plurality of die holes 14 being opened on the equipment table 12, a plurality of punching rods 15 being fixedly connected to the bottom of the pressure device 13 corresponding to the position of each die hole 14, and a clamping roller 16 being mounted on each side of the punching machine body 11, and a substrate belt 17 being conveyed together between the two clamping rollers 16.

[0039] The punching machine body 11 is equipped with auxiliary components, including a carrier box 21. The carrier box 21 is located at the bottom of the equipment table 12. The carrier box 21 is hollow. Multiple bottom die rods 22 corresponding to the positions of the die holes 14 are fixedly connected to the top of the carrier box 21. The bottom die rods 22 are inserted into the die holes 14. Each bottom die rod 22 has an air groove 23. The air groove 23 is axially connected to the bottom die rod 22. The top of the air groove 23 is open on the top surface of the bottom die rod 22. The air groove 23 is connected to the cavity of the carrier box 21. A main shaft 29 is fixedly connected to each side of the outer wall of the carrier box 21.

[0040] Two through slots 221 are symmetrically opened on the equipment table 12. Two linear modules 222 are symmetrically installed on the punching machine body 11. Each of the two linear modules 222 has a fixed support rod 223 connected to its execution end. Each of the two support rods 223 has a guide roller 224 rotatably connected to its top. The guide roller 224 rolls with the lower surface of the substrate belt 17. The support rod 223 slides with the through slot 221. The support rod 223 is L-shaped. A semi-circular groove is opened at the bottom of the horizontal arm of the support rod 223. The support rod 223 is pressed with the main shaft 29 through the semi-circular groove.

[0041] The auxiliary components also include a filter screen 24 fixedly connected to the cavity of the carrier box 21. An air pipe 25 is fixedly connected to the bottom of the carrier box 21. An air pump 26 is fixedly connected to the bottom of the air pipe 25. The air pump 26 is fixedly connected to the bottom of the outer wall of the carrier box 21. Multiple discharge slots are opened on the top of the carrier box 21. Multiple cover plates 27 are bolted to the top of the carrier box 21 corresponding to the positions of the discharge slots. Two guide frames 28 are symmetrically fixedly connected inside the punching machine body 11. The two guide frames 28 are slidably connected to a main shaft 29. A gear 210 is fixedly connected to the end of one of the main shafts 29 away from the carrier box 21. A connecting rod 211 is fixedly connected to the punching machine body 11. Multiple tooth grooves are opened on the connecting rod 211. The tooth grooves of the gear 210 mesh with each other.

[0042] Each of the two main shafts 29 is fixedly connected to a square plate 212. Each of the two guide frames 28 has two side frames 213 symmetrically slidably connected. The ends of the two side frames 213 on the same guide frame 28 furthest from the load-bearing box 21 are fixedly connected to a connecting plate 214. The connecting plate 214 is sleeved on the main shaft 29 and rotatably engages with the main shaft 29. Each side frame 213 is slidably connected to a guide rod 215. Each guide rod 215 has a clamping plate 216 fixedly connected to its end near the corresponding square plate 212. Each guide rod 215 is fitted with a tension spring. 217, the two ends of tension spring 217 are fixedly connected to the end of guide rod 215 away from clamping plate 216 and side frame 213 respectively. Each side frame 213 is fixedly connected to a side plate 218 on the side away from main shaft 29. The side plate 218 is slidably connected to punching machine body 11. Each side plate 218 is slidably connected to a support rod 219. The support rod 219 is fixedly connected to punching machine body 11. Each support rod 219 is fitted with a tension spring 220. The two ends of tension spring 220 are fixedly connected to the punching machine body 11 and the lower surface of side plate 218 respectively.

[0043] In the prior art, the pressure device 13 moves linearly back and forth on the punching machine body 11 in the vertical direction. When punching is required, the substrate strip 17 is placed on the machine table 12 and the substrate strip 17 is in contact with the machine table 12. The pressure device 13 drives the punching rod 15 to move down to abut against the upper surface of the substrate strip 17. Under the downward pressure of the pressure device 13, the pressure device 13 squeezes the substrate strip 17 downward through the punching rod 15. The substrate strip 17 is squeezed into the die hole 14, causing the substrate strip 17 to shear and break, thus achieving separation hole. Furthermore, the clamping roller 16 is responsible for conveying the substrate strip 17 within the punching machine body 11. Each clamping roller 16 is configured as an upper and lower double roller, clamping the substrate strip 17 within it. Simultaneously, the clamping roller 16 is linearly driven and mounted on the punching machine body 11, meaning it can drive the substrate strip 17 to move vertically within the punching machine body 11. After the punching is completed, the pressure device 13 moves upward, at which point the clamping roller 16 drives the substrate strip 17 to move upward synchronously, so that the substrate strip 17 no longer rests against the machine table 12. Subsequently, the substrate strip 17 is conveyed and moved by the clamping roller 16 in a suspended state, thus aligning the next punching position with the die hole 14. Holes of various types and positions required for the cylinder gasket are punched into the substrate strip 17. The substrate strip 17 is then further cut to form the punched cylinder gasket.

[0044] Specifically: the punching machine body 11, the equipment table 12, the pressure device 13, the die hole 14, the punching rod 15, and the clamping roller 16 are all existing known technologies, and will not be described in detail here.

[0045] Wherein: the air groove 23 is used to adsorb the lower surface of the substrate belt 17 and the waste material that is punched through the negative pressure, and the air groove 23 sucks in the debris generated during punching to avoid interfering with subsequent punching operations.

[0046] Among them, the filter screen 24 is used to intercept and block metal debris entering the cavity of the carrier box 21. After the punching operation is completed, the user can unscrew the bolts between the cover plate 27 and the carrier box 21 to remove the cover plate 27 from the carrier box 21. At this time, the discharge chute of the carrier box 21 is exposed, and the user can remove the metal debris filtered off the filter screen 24 through the exposed discharge chute.

[0047] Specifically: the air pump 26 is used to apply negative pressure suction into the cavity of the bearing box 21. The air pipe 25 is used to guide the negative pressure force of the air pump 26 to the positions of each bottom mold rod 22.

[0048] Among them, the external pipeline of air pump 26 adopts flexible hose and is reserved with a margin for movement.

[0049] Wherein: the effective length of the toothed section on the connecting rod 211 is equal to half the circumference of the pitch circle of the gear 210, that is, the connecting rod 211 drives the gear 210 to rotate 180 degrees in a single meshing.

[0050] Wherein: the square plate 212 is set as a square cross section, and the four corners of the square cross section of the square plate 212 are all set as rounded corners, specifically the square plate 212 has four straight surfaces and four rounded corners.

[0051] Among them, the clamping plate 216 and the square plate 212 are pressed together.

[0052] Among them, the side frame 213 is anti-slip at the upper limit of the guide frame 28, and the side frame 213 only slides in the vertical direction on the guide frame 28.

[0053] Among them, the connecting plate 214 is used to drive the side frame 213 to move vertically and linearly through the main shaft 29.

[0054] Wherein: a cavity is provided on the punching machine body 11 at the bottom position of the equipment table 12, and a door is provided on the side wall of the punching machine body 11 at the position of the cavity.

[0055] In the initial state, before the cylinder head gasket punching operation is performed, the auxiliary components are in the following structural states:

[0056] The substrate strip 17 has not yet been placed between the two clamping rollers 16. At this time, the pressure device 13 is at its highest position inside the punching machine body 11. There is a certain distance between the punching rod 15 and the equipment table 12. The bottom die rod 22 is inserted into the die hole 14, and the top of the bottom die rod 22 is flush with the top surface of the equipment table 12. The cover plate 27 is bolted to the bearing box 21, and the cover plate 27 blocks the discharge groove on the bearing box 21. The main shaft 29 is located at the top position on the guide frame 28, and the side plate 218 is located at the top position on the support rod 219. At this time, the tension spring... 220 has not yet undergone elastic deformation, gear 210 and connecting rod 211 have not yet meshed, side frame 213 is located at the top position on guide frame 28, tension spring 217 has not yet undergone elastic deformation, clamping plate 216 and square plate 212 are in direct contact and compression, the top of the support rod 223 is connected to the execution end of linear module 222 at the top of linear module 222, that is, at this time the support rod 223 is at the highest position on linear module 222, the support rod 223 has not yet entered the through slot 221, and the support rod 223 is located above the equipment table 12.

[0057] When punching cylinder head gaskets is required, the user needs to first place the substrate strip 17 on the punching machine body 11, as follows:

[0058] The user places the substrate strip 17 onto the two clamping rollers 16, so that the upper and lower rollers of the single clamping roller 16 clamp the substrate strip 17. At this time, the clamping roller 16 adjusts its position on the punching machine body 11 so that the substrate strip 17 is suspended on the punching machine body 11. That is, the substrate strip 17 is located between the punching rod 15 and the machine table 12, and the substrate strip 17 does not contact the punching rod 15 or the machine table 12. The guide roller 224 contacts the lower surface of the substrate strip 17, forming a state in which the guide roller 224 lifts the substrate strip 17.

[0059] At this time, the user drives the air pump 26 to operate, causing the air pump 26 to draw air into the air pipe 25. Since the air pipe 25 is connected to the inside of the carrier box 21, and the carrier box 21 is connected to the air grooves 23 on the multiple bottom mold rods 22, the air grooves 23 on each bottom mold rod 22 generate suction force outward. Since the top of the bottom mold rod 22 is flush with the equipment table 12, the air grooves 23 suck in the debris generated by the previous punching that is scattered on the equipment table 12 through suction force, so that the debris enters the carrier box 21 through the air grooves 23. The debris in the carrier box 21 moves towards the air pipe 25 under the action of suction force, but the debris is intercepted and blocked by the filter screen 24 in the carrier box 21, preventing the debris from entering the air pipe 25, thereby ensuring the sustainability of the debris suction operation of the air grooves 23.

[0060] After completion, the user begins the punching operation of the cylinder gasket. At this time, the user drives the air pump 26 to run synchronously with the linear module 222. The actuator of the linear module 222 drives the pressure rod 223 to move downward, so that the pressure rod 223 enters the through groove 221, but the pressure rod 223 has not yet contacted the main shaft 29. At this time, the guide roller 224 on the pressure rod 223 is completely retracted into the through groove 221, that is, the guide roller 224 does not affect the bonding work between the substrate strip 17 and the equipment table 12. The clamping roller 16 runs and moves downward on the punching machine body 11, so that the clamping roller 16 drives the substrate strip 17 to move downward synchronously until the substrate strip 17 falls on the equipment table 12. At this time, the substrate strip 17 and the equipment table 12 are in contact with each other.

[0061] It should be noted that since the air groove 23 has previously extracted and collected the debris generated by the previous stamping on the equipment table 12, the adhesion between the substrate strip 17 and the equipment table 12 is not disturbed by the debris, thus ensuring that the substrate strip 17 is evenly stressed when it is punched.

[0062] When the substrate strip 17 is attached to the equipment table 12, since the top of the bottom mold rod 22 is flush with the equipment table 12, and each bottom mold rod 22 corresponds to the position of the punching rod 15, that is, the bottom mold rod 22 corresponds to the position of the punching on the substrate strip 17, the air groove 23 on the bottom mold rod 22 then uses suction to adsorb the position of the punching on the lower surface of the substrate strip 17. Through the adsorption effect, the attachment state of the substrate strip 17 on the punching machine body 11 is more stable.

[0063] At this time, the user drives the pressure device 13 to operate, causing the pressure device 13 to move downward on the punching machine body 11. At the same time, the pressure device 13 drives multiple punching rods 15 to move towards the substrate strip 17. As the pressure device 13 continues to press down, the pressure device 13 squeezes the substrate strip 17 downward through the punching rods 15, causing part of the substrate strip 17 at the bottom of the punching rods 15 to be squeezed into the die hole 14, causing the substrate strip 17 to shear and break, achieving separation of the hole. During this process, the bottom die rod 22 is in contact with the bottom opening position of the substrate strip 17, and thus the bottom die rod 22 is simultaneously subjected to the downward pressure from the pressure device 13, thereby pushing the bottom die rod 22 to move downward. At this time, the bearing box 21 moves downward as a whole, the main shaft 29 on the bearing box 21 slides downward on the guide frame 28, and the side plate 218 slides downward on the support rod 219, causing the tension spring 220 to undergo elastic deformation.

[0064] It should be noted that during the punching process of the punching rod 15 at the position to be punched on the substrate strip 17, the bottom die rod 22 always applies a supporting force from the bottom to the position to be punched on the substrate strip 17. That is, the bottom die rod 22 always supports the substrate strip 17 during the punching process, eliminating the problem of the substrate strip 17 being suspended at the punching position, reducing punching collapse, warping and burrs, and improving the accuracy of the cylinder gasket hole position and the cross-sectional quality.

[0065] At this time, the punching waste stripped from the substrate strip 17 enters the die hole 14, and the waste abuts and adheres to the top of the bottom die rod 22. At this time, the user drives the linear module 222 to run, causing the actuator of the linear module 222 to move the pressure rod 223 downward, thereby causing the pressure rod 223 to move downward. At this time, the pressure rod 223 passes through the through groove 221 and moves downward to the bottom of the equipment table 12. During the movement of the pressure rod 223, the semi-circular groove at the bottom of the pressure rod 223 abuts and presses against the main shaft 29, thereby pushing the main shaft 29. Simultaneously moving downwards, the main shaft 29 drives the bearing box 21 to move downwards simultaneously. The bearing box 21 then drives the multiple punching waste materials being adsorbed to move downwards simultaneously through the bottom mold rod 22, causing the bottom mold rod 22 to be pulled out from the mold hole 14 and move downwards. At this time, the main shaft 29 slides downwards in the guide frame 28, and the side plate 218 slides downwards on the support rod 219, causing the tension spring 220 to continue to generate elastic deformation. As the bearing box 21 and the punching waste materials move downwards, the punching waste materials gradually detach from the bottom end of the punching rod 15, that is, the punching waste materials are only adsorbed by the air groove 23 at this time.

[0066] At this time, gear 210 moves down synchronously with the main shaft 29. Gear 210 gradually moves down to a position close to the toothed groove on the connecting rod 211. When gear 210 moves to mesh with the toothed groove of the connecting rod 211, gear 210 rotates under the meshing action of the toothed groove of the connecting rod 211. Since the effective length of the toothed section on the connecting rod 211 is equal to half the circumference of the pitch circle of gear 210, gear 210 drives the main shaft 29 to rotate half a revolution. That is, the main shaft 29 rotates half a revolution in the guide frame 28. The machine rotates and slides downwards, while the main shaft 29 drives the bearing box 21 and the punching waste to rotate 180 degrees synchronously, so that the side of the bearing box 21 that holds the punching waste flips to face downwards. At this time, the air pump 26 no longer draws air into the air pipe 25, and the punching waste is no longer held on the bottom mold rod 22. Under the action of gravity, the punching waste detaches from the bottom mold rod 22 and falls downwards, causing the punching waste to fall into the bottom inner wall of the cavity of the punching machine body 11.

[0067] During the downward movement of the main shaft 29 pushed by the support rod 223, the connecting plate 214, sleeved on the main shaft 29, causes the two side frames 213 to move downward synchronously, allowing them to slide downward on the guide frame 28. As the main shaft 29 rotates 180 degrees, it drives the square plate 212 to rotate synchronously. During this rotation, the straight surface of the square plate 212 is no longer in contact with the clamping plate 216, and the straight surface of the square plate 212 is no longer in contact with the clamping plate 216. The square plate 212 tilts, and the rounded corners of the square plate 212 come into contact with the clamping plate 216, causing the square plate 212 to push the corresponding clamping plates 216 away from each other. At this time, the clamping plates 216 push the corresponding guide rod 215 to slide on the side frame 213, causing the tension spring 217 to undergo elastic deformation. As the square plate 212 continues to rotate, when the square plate 212 rotates until its straight surface is close to the clamping plate 216 again, under the elastic restoring action of the tension spring 217, the tension spring 217 pushes the clamping plate 216 back to the square plate 212. 12, causing the clamping plate 216 to re-engage with the straight surface of the square plate 212. At this time, the two sides of the single square plate 212 are clamped by the two clamping plates 216. The straight surface of the square plate 212 that is now in contact with the clamping plate 216 is the side adjacent to the previous straight surface. That is, the square plate 212 rotates 90 degrees. Since the main shaft 29 needs to drive the square plate 212 to rotate 180 degrees, the process of the square plate 212 separating from the clamping plate 216 and being clamped again needs to be performed twice. That is, indexing positioning is provided during the flipping process, and after flipping into place, the clamping plate 212 is clamped by the main shaft 29. The clamping plate 212 maintains the flipped posture, so that after the carrier box 21 rotates 180 degrees, the carrier box 21 is stabilized by the clamping plate 216 pressing and limiting the square plate 212, so that the carrier box 21 maintains the bottom mold rod 22 side vertically downward, thus ensuring that the gear 210 can still maintain the meshing state with the tooth groove on the connecting rod 211 during the subsequent reset process, avoiding the problem of the gear 210 failing to mesh with the connecting rod 211 due to equipment vibration interference and other reasons, which would lead to the failure of the structural fit.

[0068] It should be noted that during the above process, the carrier box 21 is first moved vertically downwards a certain distance, so that the bottom mold rod 22 is pulled out from the mold hole 14, and the carrier box 21 is moved down to a certain distance from the lower surface of the equipment table 12. This distance is used for the carrier box 21 to rotate 180 degrees, so as to avoid the carrier box 21 being interfered with by the lower surface of the equipment table 12 when it is rotated.

[0069] When the punching waste material detaches from the bottom die rod 22 and falls to the bottom of the inner wall of the punching machine body 11, the pressure device 13 drives the punching rod 15 to rise, causing the punching rod 15 to disengage from the die hole 14. The pressure device 13 then moves the punching rod 15 upwards to its highest position on the punching machine body 11. At the same time, the clamping roller 16 moves the substrate belt 17 upwards, so that the substrate belt 17 is no longer in contact with the machine table 12, and there is a gap between the substrate belt 17 and the punching rod 15. Simultaneously, the linear module 222 operates, and the actuator of the linear module 222 drives the support rod 223 upwards, so that the support rod 223 passes through the through groove 221 and into the machine. At the top of the table 12, the support rod 223 abuts against the lower surface of the substrate belt 17 via the guide roller 224. At this time, the user can drive the clamping roller 16 to convey the substrate belt 17 on the punching machine body 11, thereby switching the punching position of the substrate belt 17. During this process, the guide roller 224 rolls and cooperates at the bottom of the substrate belt 17. At this time, the substrate belt 17 is lifted and conveyed by the two clamping rollers 16 and the guide rollers 224 on the two support rods 223, thereby forming a multi-point lifting of the substrate belt 17, ensuring the moving accuracy of the substrate belt 17 in switching the punching position, and also preventing the substrate belt 17 from bending and falling.

[0070] As the support rod 223 moves upward, it no longer abuts against the main shaft 29. Then, under the elastic reset action of the tension spring 220, the tension spring 220 pushes the side plate 218 to slide upward on the support rod 219. Simultaneously, the side plate 218 drives the connecting plate 214 to move upward synchronously via the side frame 213. The connecting plate 214, in turn, drives the bearing box 21 to move upward synchronously via the main shaft 29. At this time, the bearing box 21 moves upward while maintaining the bottom mold rod 22 facing downward. When the bearing box 21 moves to the position where the gear 210 meshes with the upper tooth groove of the connecting rod 211, at this point... Under the meshing action of the toothed grooves of 210 and connecting rod 211, the bearing box 21 is rotated 180 degrees again, that is, the bottom mold rod 22 on the bearing box 21 is rotated to face vertically upward. After the bearing box 21 rotates and resets, it continues to move upward, so that the bottom mold rod 22 is re-inserted into the mold hole 14. At this time, the top of the bottom mold rod 22 is reset to be flush with the upper surface of the equipment table 12. At this time, the user drives the air pump 26 to run again, so that the air tank 23 collects the debris scattered on the equipment table 12 caused by the previous punching, providing a guarantee for the next punching operation.

[0071] It should be noted that after the cylinder head gasket punching operation is completed, the user can open the door of the cavity of the punching machine body 11 to remove the punching waste collected in the cavity of the punching machine body 11. The user can also remove the cover plate 27 from the carrier box 21 by unscrewing the bolts, so that the discharge chute on the carrier box 21 is exposed. The user can remove the debris blocked by the filter screen 24 in the carrier box 21 through the discharge chute, thereby ensuring the airflow in the internal air passage of the carrier box 21 and providing a guarantee for the air groove 23 to absorb punching waste and debris.

[0072] In summary, the following beneficial effects can be achieved through the design of auxiliary components:

[0073] During the punching process, the bottom die rod 22 always applies an upward supporting force to the punched part of the substrate strip 17, eliminating defects such as collapsed corners, warping and burrs caused by suspension at the punching point, effectively improving the hole position accuracy and cross-sectional quality. At the same time, the pre-punching air groove 23 uses negative pressure to pre-extract the residual debris on the equipment table 12, avoiding debris from being padded between the substrate strip 17 and the equipment table 12, which would cause uneven adhesion. This ensures that all parts of the substrate strip 17 are evenly stressed during punching, thereby ensuring the consistency of the punching quality of each cylinder gasket in mass production.

[0074] After punching is completed, the waste material is adsorbed on the top of the bottom die rod 22. After the entire bearing box 21 moves down and flips, the waste material automatically falls into the cavity of the punching machine body 11 under the action of gravity and is collected in a concentrated manner, which effectively avoids the accumulation of waste material in the die hole 14 and interference with subsequent operations.

[0075] When the substrate strip 17 is suspended and the punching position is switched, the guide roller 224 rolls and lifts the bottom of the substrate strip 17 at multiple points to keep it flat and prevent it from bending and falling due to its own weight, ensuring that the punching position is accurately aligned with the die hole 14. At the same time, the clamping roller 16 drives the substrate strip 17 to move upward so that it is separated from the equipment table 12 before being conveyed, avoiding friction between the substrate strip 17 and the equipment table 12, effectively preventing surface scratches and ensuring the appearance quality of the finished cylinder gasket.

[0076] Example 2:

[0077] A punching process based on cylinder head gasket production includes the following steps:

[0078] Step 1: Place the substrate strip 17 into the clamping rollers 16 on both sides of the punching machine body 11, so that the upper and lower rollers of the clamping rollers 16 clamp the substrate strip 17 inside, and adjust the position of the clamping rollers 16 so that the substrate strip 17 is suspended between the punching rod 15 and the machine table 12, while the guide roller 224 abuts against the lower surface of the substrate strip 17 to form a support. Then drive the air pump 26 to run, so that negative pressure is generated in the bearing box 21, and the debris scattered on the machine table 12 is sucked into the bearing box 21 through the air grooves 23 on each bottom die rod, and intercepted and collected by the filter screen 24;

[0079] Step 2: Drive the linear module 222 to insert the pressure rod 223 into the through groove 221 and accommodate the guide roller 224. The clamping roller 16 drives the substrate strip 17 to move down synchronously so that it adheres to the equipment table 12. The air groove 23 uses negative pressure to adsorb the lower surface of the substrate strip 17 to stabilize its adhesion. Then drive the pressure device 13 to move down, driving the punching rod 15 to press the substrate strip 17 downward, causing it to shear and break at the die hole 14, thus achieving the separation hole.

[0080] Step 3: After punching, the waste material stripped from the punching enters the die hole 14 and is adsorbed onto the top of the bottom die rod 22. The driving linear module 222 causes the support rod 223 to continue to move downward and pass through the through groove 221. The support rod 223 abuts against the main shaft 29 through the semi-circular groove at its bottom, pushing the main shaft 29 to drive the bearing box 21 to move downward as a whole, so that each bottom die rod 22 is pulled out from the die hole 14. At the same time, the adsorbed waste material moves downward synchronously with the bottom die rod 22 and detaches from the bottom end of the punching rod 15.

[0081] Step 4: During the downward movement of the main shaft 29, the gear 210 meshes with the tooth groove of the connecting rod 211, causing the main shaft 29 to rotate 180 degrees. The bearing box 21 rotates synchronously, so that the bottom mold rod 22 with the waste material adsorbed faces downward. At this time, the air pump 26 stops sucking air, and the waste material loses its adsorption force and falls from the bottom mold rod 22 under the action of gravity, falling into the cavity at the bottom of the punching machine body 11, completing the waste material collection.

[0082] Step 5: The pressure device 13 moves the punching rod 15 upward and resets it. The clamping roller 16 moves the substrate belt 17 upward and removes it from the equipment table 12. The linear module 222 moves the support rod 223 upward and lifts the substrate belt 17 through the guide roller 224. After the support rod 223 moves upward and disengages from the main shaft 29, the tension spring 220 moves the side plate 218 back to its original position, causing the bearing box 21 to move upward as a whole. The gear 210 and the connecting rod 211 re-engage, causing the bearing box 21 to flip and reset. The bottom die rod 22 is reinserted into the die hole 14, ready for the next punching operation.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A punching and forming equipment based on cylinder gasket production, comprising a punching machine body (11), an equipment table (12) mounted on the punching machine body (11), a pressure device (13) mounted on the punching machine body (11), the pressure device (13) being located on top of the equipment table (12), the equipment table (12) having multiple die holes (14), multiple punching rods (15) fixedly connected to the bottom of the pressure device (13) corresponding to the position of each die hole (14), a clamping roller (16) mounted on each side of the punching machine body (11), and a substrate strip (17) being conveyed between the two clamping rollers (16), characterized in that: The punching machine body (11) is equipped with auxiliary components, including a carrier box (21). The carrier box (21) is located at the bottom of the equipment table (12). The carrier box (21) is hollow. Multiple bottom mold rods (22) corresponding to the positions of the mold holes (14) are fixedly connected to the top of the carrier box (21). The bottom mold rods (22) are inserted into the mold holes (14). Each bottom mold rod (22) has an air groove (23) on it. The air groove (23) is axially connected to the bottom mold rod (22). The top of the air groove (23) is open on the top surface of the bottom mold rod (22). The air groove (23) is connected to the cavity of the carrier box (21). A main shaft (29) is fixedly connected to each side of the outer wall of the carrier box (21). Two through slots (221) are symmetrically opened on the equipment table (12). Two linear modules (222) are symmetrically installed on the punching machine body (11). Each of the two linear modules (222) has a pressure rod (223) fixedly connected to its execution end. Each of the two pressure rods (223) has a guide roller (224) rotatably connected to its top. The guide roller (224) rolls with the lower surface of the substrate strip (17). The pressure rod (223) slides with the through slot (221). The pressure rod (223) is set to L-shape. A semi-circular groove is opened at the bottom of the horizontal arm of the pressure rod (223). The pressure rod (223) is pressed with the main shaft (29) through the semi-circular groove. The auxiliary components also include a filter screen (24) fixedly connected to the cavity of the carrier box (21), an air pipe (25) fixedly connected to the bottom of the carrier box (21), an air pump (26) fixedly connected to the bottom of the air pipe (25), the air pump (26) fixedly connected to the bottom of the outer wall of the carrier box (21), multiple discharge slots are opened on the top of the carrier box (21), and multiple cover plates (27) are bolted to the top of the carrier box (21) corresponding to the position of the discharge slots. Two guide frames (28) are symmetrically fixedly connected inside the punching machine body (11), and the two guide frames (28) are slidably connected to a main shaft (29) respectively. A gear (210) is fixedly connected to one end of the main shaft (29) away from the carrier box (21), and a connecting rod (211) is fixedly connected to the punching machine body (11). Multiple tooth grooves are opened on the connecting rod (211), and the tooth grooves of the gear (210) mesh with each other. Two square plates (212) are fixedly connected to each of the two main shafts (29). Two side frames (213) are symmetrically slidably connected to each of the two guide frames (28). The ends of the two side frames (213) on the same guide frame (28) away from the bearing box (21) are fixedly connected to a connecting plate (214). The connecting plate (214) is sleeved on the main shaft (29) and rotates with the main shaft (29). Each side frame (213) is slidably connected to a guide rod (215). Each guide rod (215) is fixedly connected to a clamping plate (216) at the end near the corresponding square plate (212). Each guide rod (215) is fitted with a tension spring. 217), the two ends of tension spring one (217) are fixedly connected to the end of guide rod (215) away from clamp plate (216) and side frame (213), respectively. Each side frame (213) is fixedly connected to a side plate (218) on the side away from main shaft (29). The side plate (218) is slidably connected to punching machine body (11). Each side plate (218) is slidably connected to a support rod (219). The support rod (219) is fixedly connected to punching machine body (11). Each support rod (219) is fitted with a tension spring two (220). The two ends of tension spring two (220) are fixedly connected to the lower surface of punching machine body (11) and side plate (218), respectively.

2. The punching and forming equipment based on cylinder gasket production according to claim 1, characterized in that: The effective length of the toothed section on the connecting rod (211) is equal to half the circumference of the pitch circle of the gear (210). The connecting rod (211) drives the gear (210) to rotate 180 degrees in a single meshing.

3. The punching and forming equipment based on cylinder gasket production according to claim 1, characterized in that: The square plate (212) is set to a square cross section, and the four corners of the square cross section of the square plate (212) are all set to rounded corners.

4. The punching and forming equipment based on cylinder gasket production according to claim 1, characterized in that: The clamping plate (216) and the square plate (212) are pressed together.

5. The punching and forming equipment based on cylinder gasket production according to claim 1, characterized in that: A cavity is provided on the punching machine body (11) at the bottom position of the equipment table (12), and a door is provided on the side wall of the punching machine body (11) at the position of the cavity.

6. A punching forming process based on cylinder head gasket production, characterized in that: The application of the punching and forming equipment based on cylinder head gasket production as described in claim 5 includes the following steps: Step 1: Place the substrate strip (17) into the clamping rollers (16) on both sides of the punching machine body (11), so that the upper and lower double rollers of the clamping rollers (16) clamp the substrate strip (17) inside, and adjust the position of the clamping rollers (16) so that the substrate strip (17) is suspended between the punching rod (15) and the equipment table (12). At the same time, make the guide roller (224) contact the lower surface of the substrate strip (17) to form a lift. Then drive the air pump (26) to run, so that negative pressure is generated in the bearing box (21). The debris scattered on the equipment table (12) is sucked into the bearing box (21) through the air grooves (23) on each bottom mold rod (22), and intercepted and collected by the filter screen (24). Step 2: Drive the linear module (222) to insert the pressure rod (223) into the through groove (221) and accommodate the guide roller (224). The clamping roller (16) drives the substrate strip (17) to move down synchronously so that it adheres to the equipment table (12). The air groove (23) uses negative pressure to adsorb the lower surface of the substrate strip (17) to stabilize its adhesion state. Then drive the pressure device (13) to move down, drive the punching rod (15) to squeeze the substrate strip (17) downward, so that it is sheared and broken at the die hole (14) to achieve separation hole; Step 3: After punching is completed, the waste material stripped from punching enters the die hole (14) and is adsorbed on the top of the bottom die rod (22). The driving linear module (222) causes the support rod (223) to continue to move down and pass through the through groove (221). The support rod (223) abuts against the main shaft (29) through the semi-circular groove at its bottom, pushing the main shaft (29) to drive the bearing box (21) to move down as a whole, so that each bottom die rod (22) is pulled out from the die hole (14). At the same time, the adsorbed waste material moves down synchronously with the bottom die rod (22) and detaches from the bottom end of the punching rod (15). Step 4: During the downward movement of the main shaft (29), the gear (210) meshes with the tooth groove of the connecting rod (211), causing the main shaft (29) to rotate 180 degrees. The bearing box (21) rotates synchronously, so that the bottom mold rod (22) with the waste material adsorbed faces downward. At this time, the air pump (26) stops sucking air. After the waste material loses its adsorption force, it falls from the bottom mold rod (22) under the action of gravity and falls into the cavity at the bottom of the punching machine body (11), thus completing the waste material collection. Step 5: The pressure device (13) drives the punching rod (15) to move up and reset. The clamping roller (16) drives the substrate belt (17) to move up and remove it from the equipment table (12). The linear module (222) drives the support rod (223) to move up and lift the substrate belt (17) through the guide roller (224). After the support rod (223) moves up and gets away from the main shaft (29), the tension spring (220) drives the side plate (218) to reset, so that the bearing box (21) moves up as a whole. The gear (210) and the connecting rod (211) mesh again to drive the bearing box (21) to flip and reset. The bottom mold rod (22) is reinserted into the mold hole (14) to prepare for the next punching operation.

Images