Automatic production line for stretching fire extinguisher cylinder

Abstract

The present application relates to a kind of automatic production line of fire extinguisher cylinder stretch, material is first through automatic feeding device and enters into preforming station after oiling and is punched into cylindrical material transfer to turnover station, and the material after being overturned in the upside-down turnover station is transferred to reverse stretch station, and the material after being stretched in reverse in the reverse stretch station is transferred to punching station, and the material after being punched in the punching station is transferred to trimming station, and the material after being trimmed in the trimming station is transferred to the unloading end and is unloaded, the whole process is replaced by material transfer manipulator with artificial transfer material, improve processing efficiency, avoid material transfer process damage, while reducing labor cost and worker workload, realize integrated, fully automated production processing.

Description

Technical Field

[0001] This invention relates to the field of fire extinguisher cylinder manufacturing, and particularly to an automated production line for stretching fire extinguisher cylinders. Background Technology

[0002] Traditional fire extinguisher cylinder processing generally involves blanking, stretching, and then trimming and drilling. This process requires the use of multiple sets of different molds, namely blanking molds and stretching molds. Moreover, stretching needs to be completed in several stages, requiring the switching of different molds each time. This not only increases the labor intensity of workers but also results in low production efficiency, which cannot meet the needs of mass production and increases production costs.

[0003] Dies are specialized tools used to complete stamping and stretching processes, and are indispensable fixtures. Existing fire extinguisher cylinder processing equipment can only stamp and stretch workpieces separately, and can only stretch once at a time. If a workpiece needs to be stretched multiple times, it must be manually removed and placed in another set of dies for a second stretch, and then manually removed again for a third stretch. The drawback is that, in order to increase the radial tensile stress of the fire extinguisher cylinder and prevent wrinkling, the stretched fire extinguisher cylinder is flipped over and stretched in the opposite direction. However, this stretching method has the disadvantage that the workpiece needs to be repeatedly removed, fed, and stretched manually, which is inefficient and may damage the workpiece. Moreover, since fire extinguisher cylinders are metal products, long-term manual handling will lead to an excessive number of workers and a significant drop in production efficiency. In addition, such products usually require edge trimming during the manufacturing process to ensure that the product meets the usage requirements. If manual operation is used, firstly, the production efficiency is low, secondly, it is easy to cause a low product qualification rate, and thirdly, there is a possibility of personnel injury due to operator error. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic production line for stretching fire extinguisher cylinders, which addresses the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic production line for stretching fire extinguisher cylinders, comprising a frame, with a loading end and a unloading end at both ends of the frame, characterized in that: the frame is sequentially provided with a pre-forming station, a flipping station, a reverse stretching station, a punching station, and a trimming station along the direction from the loading end to the unloading end; an automatic feeding device is provided on one side of the frame corresponding to the loading end; the center distances between the pre-forming station, the flipping station, the reverse stretching station, the punching station, and the trimming station are all the same; a transfer beam is provided on one side of the frame, and the transfer beam is loaded with components corresponding to the automatic feeding device, the pre-forming station, the flipping station, the reverse stretching station, the punching station, and the trimming station. The hole-making station and the trimming station are each corresponding to and equidistant from each other. The transfer beam is equipped with a transfer drive component that intermittently drives the transfer robot to slide radially at the loading end and the unloading end. The transfer drive component drives the transfer robot to clamp the material at the automatic loading device into the pre-forming station, transfer the cylindrical material stamped in the pre-forming station to the flipping station, transfer the upside-down flipped material in the flipping station to the reverse stretching station, transfer the reverse stretched material in the reverse stretching station to the punching station, transfer the punched material in the punching station to the trimming station, and transfer the trimmed material in the trimming station to the unloading end for unloading.

[0006] Using the above technical solution, the material located on the side of the frame near the feeding end is the initial blank of the fire extinguisher cylinder, which is disc-shaped. It is first placed at the feeding end by an automatic feeding device and then gripped by a transfer robot to the pre-forming station. After being stamped at the pre-forming station to form a cylindrical structure, the material is then sent to the subsequent station for reverse pulling, punching, trimming, and unloading. The transfer beam runs through the stations on the entire frame, and the transfer robot is used to grip the material in the corresponding station and send it to the next station through the transfer drive component. The entire process can be completed by the transfer device, which can replace manual transfer, improve processing efficiency, avoid damage during material transfer, reduce labor costs and worker workload, and achieve efficient automated processing and production, integrating the entire process into an automated processing and production system.

[0007] The aforementioned automatic production line for stretching fire extinguisher cylinders can be further configured as follows: the material transfer drive assembly includes a material transfer drive platform located at the unloading end and a support base located at the loading end; one end of the material transfer beam is provided with a material transfer slide rail; the material transfer beam is movably connected to the material transfer slide rail; both the material transfer drive platform and the support base are connected to the material transfer slide rail via a material transfer connecting seat; a material transfer drive motor is provided on the material transfer connecting seat; a material transfer gear is provided at the conveying end of the material transfer drive motor; a material transfer rack is provided on the material transfer beam that meshes with the material transfer gear; and the material transfer drive motor intermittently drives the material transfer beam to intermittently slide radially back and forth along the material transfer slide rail.

[0008] Using the above technical solution, the material transfer drive source and the support base are respectively set on both sides of the frame. The material transfer slide rail is fixedly connected to the material transfer drive source and the support base, while the material transfer beam is slidably connected to the material transfer slide rail. When it is necessary to send the material to the next group, the material transfer drive motor drives the material transfer gear to drive the corresponding material transfer rack, which drives the material transfer beam to move radially along the material transfer slide rail. This, in turn, pulls the material transfer robot to complete the transfer between each stamping and stretching component. The entire process can be completed by the material transfer device, which can replace manual transfer, improve processing efficiency, avoid damage during material transfer, reduce labor costs and worker workload, and achieve efficient automated processing and production.

[0009] The aforementioned automatic production line for stretching fire extinguisher cylinders can be further configured as follows: the transfer drive platform and the support base are respectively equipped with a transfer lifting mechanism that intermittently drives the transfer beam to rise and fall axially at one end. The transfer drive platform and the support base are each equipped with a lifting guide assembly connected to the transfer beam. The lifting guide assembly includes a lifting guide sleeve connected to the transfer connecting seat and a guide optical shaft disposed within the lifting guide sleeve. The transfer lifting mechanism includes a reducer disposed below the transfer beam, a lifting drive rod disposed at the output end of the reducer, and a lifting linkage rod connected to the transfer beam. One end of the lifting linkage rod is hinged to the transfer beam, and the other end is hinged to the lifting drive rod. The reducer drives the lifting drive rod to rotate circumferentially. When the lifting drive rod faces the transfer beam, the lifting linkage rod will drive the transfer beam and the transfer drive motor to rise along the guide optical shaft. When the lifting drive rod moves away from the transfer beam, the lifting linkage rod will drive the transfer beam and the transfer drive motor to move downward.

[0010] To avoid collisions between materials and the stamping and stretching components during the material transfer process, and to prevent instability and collapse during material placement, a material transfer lifting mechanism is installed. This mechanism allows the material to be lifted by the material transfer beam, detaching it from the stamping and stretching components before being transferred to the next workstation. The material is then stably placed back onto the stamping and stretching components by the material transfer lifting mechanism, preventing tipping. Furthermore, the lifting guide sleeve and guide shaft guide the lifting process of the material transfer beam, improving the stability of the transfer. In other words, when the material transfer beam needs to be lifted... The reducer drives the lifting drive rod to rotate circumferentially. As the lifting linkage rod rotates with the lifting drive rod, it drives the material transfer beam to rise or fall. That is, the rising and falling process of the material transfer beam can be completed by one rotation of the reducer. Since the material transfer drive motor is connected to the material transfer slide rail through the material transfer connecting seat, the material transfer drive motor will also rise and fall with the material transfer beam. This ensures that the material transfer gear is always engaged with the material transfer rack, realizing radial transfer when moving up or down. This structure does not require the reducer to rotate back and forth. It only needs to rotate in one direction to complete the lifting and falling, which greatly improves the transfer efficiency.

[0011] The aforementioned automatic production line for stretching fire extinguisher cylinders can be further configured as follows: one end of the frame corresponding to the preforming station is provided with three sets of equidistantly arranged stamping and stretching components, one end corresponding to the reverse stretching station is provided with a stamping reverse stretching component, and one end corresponding to the punching station is provided with a stamping and punching component. The stamping and stretching component, the stamping reverse stretching component, and the stamping and punching component all include an axially corresponding upper die and a lower die. The diameter of the lower die in the preforming station decreases sequentially from the feeding end to the unloading end.

[0012] Using the above technical solution, the stamping and stretching assembly, the stamping and reverse stretching assembly, and the stamping and punching assembly all include an axially corresponding upper and lower die. By assembling the corresponding mold, the material that was originally disc-shaped is gradually stamped into a cylindrical structure by utilizing the ductility of metal. In order to avoid excessive stretching and breakage, the disc-shaped material is stamped into a cylindrical material multiple times by the cooperation of the upper and lower dies.

[0013] The aforementioned automatic production line for stretching fire extinguisher cylinders can be further configured as follows: the automatic feeding device includes at least one feeding seat for stacking materials, a conveying mechanism for delivering materials to the feeding end, and a feeding mechanism for transferring materials from the feeding seat to the conveying mechanism. The feeding mechanism includes a gantry frame mounted above the feeding seat and the conveying mechanism, a transfer seat movably mounted on the gantry frame, a lifting mechanism mounted on the transfer seat for extracting materials, a first drive assembly for driving the lifting mechanism to move axially up and down, and a second drive assembly for driving the lifting mechanism to reciprocate along the gantry frame between the feeding seat and the conveying mechanism. The conveying mechanism includes a feeding conveyor frame and a... The feeding conveyor has several drive rollers placed on it and a third drive assembly that drives the drive rollers to rotate toward the frame. The feeding conveyor has an oiling assembly at one end corresponding to the drive rollers. The oiling assembly includes an oiling frame mounted on the feeding conveyor, an upper oiling roller movably mounted on the oiling frame and a lower oiling roller parallel to the drive rollers, and an oil supply pipe. An oiling channel is provided between the upper and lower oiling rollers for material to pass through. The feeding conveyor has two opposing baffles at one end corresponding to the feeding end. The cross-section of the baffles is higher than the cross-section of the drive rollers. A photoelectric sensor is provided at the bottom of the feeding conveyor corresponding to the baffles.

[0014] Using the above technical solution, two feeding seats are preferred, with each feeding seat positioned on one side of the conveying mechanism. This allows for shared feeding and preparation, meaning that while the feeding mechanism is feeding, workers replenish materials on the other side. The electrical control box controls which feeding seat the feeding mechanism uses, ensuring one feeding seat for each worker and avoiding the need to stop the machine for replenishment after one feeding seat runs out of material, thus improving processing efficiency. The four surrounding feeding columns save materials while providing stable storage space for stacking materials. A simple and compact strong magnetic separator is used, and two magnetic field generating units magnetize the materials, causing adjacent materials to repel each other. Under the combined action of repulsive force and gravity, several materials located between the two magnetic field generating units can achieve a suspended separation state, thus achieving the separation effect. This device is small in size and consumes little energy.Furthermore, due to the repulsive force between adjacent metal sheets, there is no overlap during separation, thus solving the problem of multiple sheets being extracted during material feeding. This also achieves non-contact separation, causing no damage to the material. The fire extinguisher cylinder is made by stamping and stretching a metal disc. The conveying mechanism transports the material from one end of the feeding seat to the end to be processed for subsequent extraction. Therefore, the material can be axially stacked on the feeding seat, and then the lifting mechanism, via the first drive assembly, axially lifts and lowers the material to extract it. The second drive assembly drives the lifting mechanism to reciprocate along the gantry between the feeding seat and the conveying mechanism. The material in the loading seat is repeatedly placed into the conveying mechanism to complete automated feeding, avoiding repetitive manual feeding and improving work efficiency and processing accuracy. The conveying mechanism can be a conveyor belt or roller conveyor, etc. The first drive component can be any structure that drives the lifting mechanism to move axially, such as a synchronous belt, gear and rack structure, or screw and sleeve structure. The second drive component can be any structure that drives the lifting mechanism to slide radially, such as a synchronous belt, gear and rack structure, or screw and sleeve structure. The lifting mechanism can be any structure capable of extracting material, such as a suction cup, robotic arm, or pneumatic gripper. Since the material needs to pass through... Due to the stamping and stretching deformation, both sides of the material must be oiled to prevent product damage. However, directly applying oil at the loading seat and stacking the materials results in uneven coating, causes multiple pieces to adhere together, and affects the workshop environment. Therefore, an oiling assembly is installed. After the material is placed on the loading conveyor, the drive roller, through a third drive component, sends the material to the processing area. Upper and lower oiling rollers are installed between the two locations. The oiling channel is parallel to the surface of the drive roller. The oiling frame and / or the lower oiling roller are connected to an oil supply pipe, allowing oil to drip from the upper oiling roller and simultaneously coat both sides of the material with the lower oiling roller, achieving automated oiling. The third drive component can simultaneously drive... The rotating oiling roller improves the oiling effect. A collection bucket can be placed below the oiling assembly to collect the oil flowing down, preventing workshop contamination and recycling the oil. By setting a baffle higher than the drive roller, the third drive assembly is prevented from directly feeding material out of the feeding conveyor. Since the material is disc-shaped, after one end abuts against the baffle on the feeding conveyor, the other end of the disc-shaped material abuts against the other baffle as the feeding conveyor rotates, thus completing material correction and positioning. A photoelectric sensor detects whether there is material at the current position, alerting the subsequent material transfer robot to pick up and process the material.

[0015] The aforementioned automatic production line for stretching fire extinguisher cylinders can be further configured as follows: one end of the frame corresponding to the trimming station is provided with a trimming and narrowing device. The trimming and narrowing device includes a rotating seat for placing materials, a rotary drive assembly for driving the rotating seat to rotate, an upper pressing mechanism disposed above the rotating seat for pressing against the materials, and a trimming mechanism disposed on one side of the rotating seat. The upper pressing mechanism includes a pressing guide wheel disposed corresponding to the rotating seat and an upper pressing lifting assembly for driving the pressing guide wheel axially closer to or away from the rotating seat. The trimming mechanism includes a trimming bracket, a trimming guide wheel movably connected to the trimming bracket, a trimming blade mounted on the trimming guide wheel, and a radial drive assembly for driving the trimming blade horizontally closer to or away from the rotating seat. The trimming blade includes a trimming part and a narrowing part. The outer diameter of the trimming part is larger than the outer diameter of the narrowing part. The trimming part is disposed below the narrowing part, and a stepped part is formed between the trimming part and the narrowing part. The radial drive assembly includes a trimming seat disposed at the bottom of the trimming bracket and a trimming mechanism disposed on the trimming part. The rotating seat has a radial drive cylinder on the side away from the rotating seat and a cutting guide assembly between the cutting seat and the cutting support. The radial drive cylinder drives the cutting support to move closer to or away from the rotating seat. The upper pressure lifting assembly includes an upper pressure lifting frame, an upper pressure lifting cylinder on the top of the upper pressure lifting frame, an upper pressure mounting seat for the pressure guide wheel to be movably installed, and an upper pressure guide assembly between the upper pressure lifting frame and the upper pressure mounting seat. The output end of the upper pressure lifting cylinder is connected to the upper pressure mounting seat and drives the upper pressure mounting seat to move closer to or away from the rotating seat. An automatic waste discharge assembly is provided on one side of the rotating seat. The automatic waste discharge assembly includes a waste discharge lifting cylinder, a waste discharge guide plate on the conveying end of the waste discharge lifting cylinder, and a waste discharge pusher plate on the waste discharge guide plate. The waste discharge guide plate has a waste discharge groove sleeved on the outer periphery of the rotating seat at one end. A waste pusher cylinder is provided on the waste discharge guide plate. The output end of the waste pusher cylinder is connected to the waste discharge pusher plate and drives the waste discharge pusher plate to push the waste material in the waste discharge groove along the waste discharge guide plate.

[0016] Using the above technical solution, when cutting off the waste edge of the processed fire extinguisher cylinder, simply place the fire extinguisher cylinder on the rotating base. The upper lifting assembly will drive the clamping guide wheel to press against the side of the fire extinguisher cylinder away from the rotating base, thereby positioning the fire extinguisher cylinder. Then, the rotation drive assembly will drive the fire extinguisher cylinder and the clamping guide wheel to rotate circumferentially. At this time, the radial drive assembly drives the cutting guide wheel to approach the rotating base, and makes the cutting blade abut against the surface of the fire extinguisher cylinder to be cut, causing the cutting guide wheel to rotate as well, thus completing the fire extinguishing process. The automatic rotary cutting of the extinguisher cylinder, once completed, is unblocked by the radial drive assembly and the upper lifting assembly, facilitating loading and unloading. This automated cutting reduces labor costs and improves production efficiency and yield. The cutting blade includes a cutting section and a narrowing section. The cutting section has a sharp edge for cutting off waste edges, while the narrowing section is located above the cutting section and has a smaller outer diameter, creating a stepped section between them. The narrowing section then holds the cut-off portion of the extinguisher cylinder inward and closes it, completing the narrowing process for easy subsequent extinguishing. In fire extinguisher assembly, the radial drive cylinder, through air intake and exhaust, moves the cutting edge seat closer to or further away from the rotating seat along the cutting edge guide assembly. Specifically, after the fire extinguisher cylinder is placed on the rotating seat, the radial drive cylinder moves the cutting edge bracket closer to the rotating seat, thereby controlling the cutting edge blade to abut against the fire extinguisher cylinder and rotate to complete the cutting. After cutting, the cutting edge blade is moved away from the rotating seat for easy demolding and loading. After the fire extinguisher cylinder is placed on the rotating seat, the upper lifting cylinder moves the upper mounting seat closer to the rotating seat, thereby controlling the pressing guide wheel to press against the fire extinguisher cylinder to complete the cutting. The system rotates to a position, and after the edge trimming is completed, the pressure guide wheel is controlled to move away from the rotating seat to facilitate demolding and material loading. The waste discharge trough is fitted on the outer circumference of the rotating seat. When the waste edge at the bottom of the fire extinguisher cylinder is cut off, the waste discharge lifting cylinder will push the waste discharge guide plate to move up and move the fire extinguisher cylinder and the waste edge at the bottom away from the rotating seat. Then, after the fire extinguisher cylinder is unloaded, the waste pushing cylinder will also drive the waste discharge pushing plate to push the waste material at the waste discharge trough out of the waste discharge guide plate along the waste discharge guide plate, so as to provide the subsequent fire extinguisher cylinder edge trimming and narrowing, thereby completing automatic waste discharge and improving processing efficiency.

[0017] The aforementioned automatic production line for stretching fire extinguisher cylinders can be further configured as follows: a gap exists between the drive rollers; a weighing component is provided at one end of the feeding conveyor frame corresponding to the lifting mechanism; the weighing component includes a weighing base plate disposed at the bottom of the feeding conveyor frame, a weighing lifting cylinder disposed on the weighing base plate, a weighing sensor disposed at the output end of the weighing lifting cylinder, and a weighing support column disposed at the detection end of the weighing sensor; the weighing support column is disposed at the gap, and is driven by the weighing lifting cylinder to pass through or retract into the gap; the lifting mechanism includes a lifting seat disposed on a material transfer seat, and a... The first drive assembly includes a lifting guide rail and a lifting drive motor mounted on the transfer base. The lifting base is mounted on the lifting guide rail. The lifting drive motor drives the lifting base to reciprocate along the lifting guide rail axially via a synchronous belt, a gear and rack structure, or a screw and sleeve structure. The second drive assembly includes a transfer guide rail and a transfer drive motor mounted on a gantry frame. The transfer base is mounted on the transfer guide rail. The transfer drive motor drives the transfer base to reciprocate between the loading base and the conveying mechanism via a synchronous belt, a gear and rack structure, or a screw and sleeve structure.

[0018] Using the above technical solution, a weighing component is set up to detect the weight of the material at the feeding conveyor, avoiding the simultaneous feeding of multiple sheets of material. Specifically, when the lifting mechanism picks up the material before or after the feeding conveyor, the weighing lifting cylinder drives the weighing column to pass through the gap between the transmission rollers. Then, the material will abut against the weighing column at the detection end of the weighing sensor. The weighing sensor will distinguish whether the material is a single piece, multiple pieces, or incorrectly fed based on the weight. When multiple pieces or incorrect feeding are detected, a stop alarm will be triggered to remind the worker to check. When a single piece is detected, the third drive component will work to send the material to the feeding end for the transfer robot to pick up and process. Since the fire extinguisher cylinder material is made of metal discs, suction cups can be set up to directly adsorb the metal discs for feeding. The lifting seat can be set up to load different numbers of suction cups according to different sizes of discs, improving adaptability and material transfer efficiency. The lifting seat is mounted on the lifting guide rail. When synchronous belt drive is used, a lifting drive motor and a synchronous belt drive are set at each end of the lifting guide rail. The lifting seat is connected to a synchronous belt at one end, enabling axial lifting. When a rack and pinion structure is used, a rack is installed on the lifting seat, and the lifting drive motor is equipped with a gear that meshes with the rack, achieving axial lifting. When a screw and sleeve drive is used, a screw is installed on the lifting guide rail, and a sleeve is fitted over the screw on the lifting seat. The lifting drive motor drives the screw to rotate, thereby driving the lifting seat to slide and achieve axial lifting. The transfer seat is mounted on the transfer guide rail. When a synchronous belt drive is used, at both ends of the gantry... Each is equipped with a material transfer drive motor and a synchronous pulley. One end of the material transfer seat is connected to a synchronous belt to realize material transfer between the loading seat and the conveying mechanism. When a gear and rack structure is adopted, a rack is provided on the material transfer seat, and the material transfer drive motor is equipped with a gear that meshes with the rack to realize material transfer between the loading seat and the conveying mechanism. When a screw and sleeve drive is adopted, a screw is provided on the gantry frame, and a sleeve is provided on the material transfer seat that is sleeved on the outside of the screw. The material transfer drive motor drives the screw to rotate, thereby driving the material transfer seat to slide and realize material transfer between the loading seat and the conveying mechanism.

[0019] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the present invention.

[0021] Figure 2 This is a front view of an embodiment of the present invention.

[0022] Figure 3 This is a top view of an embodiment of the invention after removing the upper module.

[0023] Figure 4 This is an internal schematic diagram of an embodiment of the present invention after the automatic feeding device has been removed.

[0024] Figure 5This is a three-dimensional schematic diagram of the material transfer drive stage according to an embodiment of the present invention.

[0025] Figure 6 This is a three-dimensional schematic diagram of the automatic feeding device according to an embodiment of the present invention.

[0026] Figure 7 This is a three-dimensional schematic diagram of the automatic feeding device according to an embodiment of the present invention. Figure 2 .

[0027] Figure 8 for Figure 7 Enlarged view of point A.

[0028] Figure 9 This is a three-dimensional schematic diagram of the weighing component according to an embodiment of the present invention.

[0029] Figure 10 This is a three-dimensional schematic diagram of the edge-cutting and necking device according to an embodiment of the present invention.

[0030] Figure 11 This is a three-dimensional schematic diagram of the cutting blade according to an embodiment of the present invention.

[0031] Figure 12 This is a flowchart illustrating the processing of an embodiment of the present invention. Detailed Implementation

[0032] like Figures 1-5As shown, an automatic production line for stretching fire extinguisher cylinders includes a frame 1 with a loading end a and a unloading end b at its two ends. Along the direction from loading end a to unloading end b, the frame 1 is sequentially equipped with a pre-forming station c, a flipping station d, a reverse stretching station e, a punching station f, and a trimming station g. An automatic feeding device 2 is provided on one side of the frame 1 corresponding to loading end a. The center distances between the pre-forming station c, flipping station d, reverse stretching station e, punching station f, and trimming station g are all the same. A transfer beam 3 is provided on one side of the frame 1. A transfer robot 4 is mounted on the transfer beam 3, corresponding one-to-one with and equidistant from the automatic feeding device 2, pre-forming station c, flipping station d, reverse stretching station e, punching station f, and trimming station g. The device is equipped with an intermittently driven transfer robot 4 that slides radially between the loading end a and the unloading end b. The transfer drive assembly drives the transfer robot 4 to clamp the material h from the automatic loading device 2 into the preforming station c, transfer the cylindrical material h from the preforming station c to the flipping station d, transfer the flipped material h from the flipping station d to the reverse stretching station e, transfer the reverse stretched material h from the reverse stretching station e to the punching station f, transfer the punched material h from the punching station f to the trimming station g, and transfer the trimmed material h from the trimming station g to the unloading end b for unloading. The transfer drive assembly includes a transfer drive platform 5 located at the unloading end b and a support located at the loading end a. The transfer beam 3 is movably connected to the transfer slide rail 31 at one end of the base 51. Both the transfer drive platform 5 and the support base 51 are connected to the transfer slide rail 31 via a transfer connecting seat 52. A transfer drive motor 53 is mounted on the transfer connecting seat 52, and a transfer gear 54 is mounted on the conveying end of the transfer drive motor 53. A transfer rack 32 meshes with the transfer gear 54 on the transfer beam 3. The transfer drive motor 53 intermittently drives the transfer beam 3 to reciprocate radially along the transfer slide rail 31. The transfer drive platform 5 and the support base 51 intermittently drive the axial lifting mechanism of the transfer beam 3 at one end corresponding to the transfer beam 3. Both the transfer drive platform 5 and the support base 51 are equipped with lifting guide components connected to the transfer beam 3. The components include a lifting guide sleeve 55 connected to the material transfer connecting seat 52 and a guide optical shaft 56 disposed within the lifting guide sleeve 55. The material transfer lifting mechanism includes a reducer 57 disposed below the material transfer beam 3, a lifting drive rod 58 disposed at the output end of the reducer 57, and a lifting linkage rod 59 connected to the material transfer beam 3. One end of the lifting linkage rod 59 is hinged to the material transfer beam 3, and the other end is hinged to the lifting drive rod 58. The reducer 57 drives the lifting drive rod 58 to rotate circumferentially. When the lifting drive rod 58 is facing the material transfer beam 3, the lifting linkage rod 59 will drive the material transfer beam 3 and the material transfer drive motor 53 to rise along the guide optical shaft 46. When the lifting drive rod 58 is away from the material transfer beam 3, the lifting linkage rod 59 will drive the material transfer beam 3 and the material transfer drive motor 53 to move downward.

[0033] like Figures 6-8 As shown, the automatic feeding device 2 includes two feeding seats 21 for stacking materials h, a conveying mechanism for feeding materials h to the feeding end, and a feeding mechanism for transferring materials h from the feeding seats to the conveying mechanism. The feeding seats 21 are symmetrically arranged on both sides of the conveying mechanism. The feeding mechanism includes a gantry frame 22 mounted above the feeding seats 21 and the conveying mechanism, a transfer seat 23 movably mounted on the gantry frame 22, a lifting mechanism 24 mounted on the transfer seat 23 for extracting materials h, a first drive assembly for driving the lifting mechanism 24 to move axially up and down, and a second drive assembly for driving the lifting mechanism 24 to reciprocate along the gantry frame 22 between the feeding seats 21 and the conveying mechanism. The conveying mechanism includes a feeding conveyor frame 25 and several [unclear text - possibly related to a device or mechanism] mounted on the feeding conveyor frame 25. The transmission roller 26 and the third drive assembly that drives the transmission roller 26 to rotate toward the frame 1 are provided. The feeding conveyor frame 25 is provided with an oiling assembly 27 at one end corresponding to the transmission roller 26. The oiling assembly 27 includes an oiling frame 271 mounted on the feeding conveyor frame 25, an upper oiling roller 272 movably mounted on the oiling frame 271 and a lower oiling roller 273 arranged parallel to the transmission roller 26, and an oil supply pipe (not assembled in the figure). An oiling channel 274 for material h to pass through is provided between the upper oiling roller 272 and the lower oiling roller 273. A baffle post 275 is provided at one end of the feeding end a of the feeding conveyor frame 25. The cross-section of the baffle post 275 is higher than the cross-section of the transmission roller 26. A photoelectric sensor 276 is provided at the bottom of the feeding conveyor frame 25 corresponding to the baffle post 275.

[0034] like Figure 9 As shown, there is a gap 261 between the drive rollers 26. The feeding conveyor 25 is equipped with a weighing component at one end corresponding to the lifting mechanism 24. The weighing component includes a weighing base plate 28 at the bottom of the feeding conveyor 25, a weighing lifting cylinder 281 on the weighing base plate 28, a weighing sensor 282 at the output end of the weighing lifting cylinder 281, and a weighing support column 283 at the detection end of the weighing sensor 282. The weighing support column 283 is located at the gap 261 and is driven by the weighing lifting cylinder 281 to pass through or retract into the gap 261.

[0035] like Figure 6 , Figure 7As shown, the material lifting mechanism 24 includes a material lifting seat 241 mounted on the material transfer seat 23 and a plurality of suction cups 242 mounted on the material lifting seat 241. The first driving component includes a lifting guide rail 231 mounted on the material transfer seat 23 and a lifting drive motor 232. The material lifting seat 241 is mounted on the lifting guide rail 231. The lifting drive motor 232 drives the material lifting seat 241 to reciprocate along the lifting guide rail 231 axially via a synchronous belt transmission structure. The second driving component includes a material transfer guide rail 221 mounted on the gantry frame 22 and a material transfer drive motor 222. The material transfer seat 23 is mounted on the material transfer guide rail 221. The material transfer drive motor 222 drives the material transfer seat 23 to reciprocate along the material transfer guide rail 221 between the loading seat 21 and the conveying mechanism via a synchronous belt transmission structure.

[0036] like Figures 1-9As shown, the fire extinguisher cylinder is made from a metal disc material through subsequent processes. The conveying mechanism is used to send the material h from one end of the feeding seat to the feeding end, where it is then picked up by the transfer robot 4 or the transfer suction cup and placed into the pre-forming station c. Therefore, the material h can be axially stacked through the feeding seat 21. The feeding seats 21 are respectively set on both sides of the feeding conveyor frame 25 to realize the sharing of feeding and preparation. That is, when the feeding mechanism is feeding, the worker replenishes the material on the other side. The feeding mechanism and the feeding seat are controlled by the electrical control box to achieve one work and one preparation, avoiding the need to stop the machine to replenish the material h after the material h in one feeding seat 21 is used up, which affects the processing efficiency. At the same time, a strong magnetic separator is set on the end face of the feeding seat 21. The material is magnetized by two magnetic field generating units, which causes adjacent materials to repel each other. Under the combined action of repulsive force and gravity, several materials located between the two magnetic field generating units can achieve a suspended separation state, thereby achieving the separation effect. The device is small in size and consumes little energy.Furthermore, due to the repulsive force between adjacent metal sheets, there is no overlap during separation, thus solving the problem of multiple sheets being extracted during material feeding. This also achieves non-contact separation, causing no damage to the material. During automatic feeding, the lifting seat 241 is mounted on the lifting guide rail 231. Each end of the lifting guide rail 231 is equipped with a lifting drive motor 232 and a synchronous pulley. One end of the lifting seat 241 is connected to a synchronous belt, enabling axial lifting of the lifting seat 241. This drives the suction cup 242 to directly adsorb the metal disc material h, and then the material h is placed onto the feeding conveyor frame 25 by the material transfer drive motor. To avoid simultaneous feeding of multiple sheets of material h when they are adsorbed, when material h... After being placed on the feeding conveyor 25, the weighing lifting cylinder 281 drives the weighing support column 283 to pass through the gap 261 between the transmission rollers 26. Then, the material h will abut against the weighing support column 283 at the detection end of the weighing sensor 282. The weighing sensor 282 will distinguish whether the material h is a single piece, multiple pieces, or incorrectly fed based on the weight. When multiple pieces or incorrect feeding are detected, a stop alarm will be triggered to remind the worker to check. When a single piece is detected, the third drive assembly will work to send the material h to the oiling assembly 27. The third drive assembly includes a sprocket set at one end of the transmission roller, a chain meshing with the sprocket, and a conveying drive motor that drives the sprocket to rotate. Both sides of the transmission roller are equipped with the same type of conveying motor. Equipped with sprockets connected by chains, the conveyor drive motor rotates the sprockets or one or more sets of drive rollers to transport materials to the processing area. Since material h requires stamping and stretching deformation in subsequent processes, both sides of material h must be oiled to prevent product damage. However, directly applying oil at the loading seat 21 and stacking the materials would result in uneven coating and affect the workshop environment. Therefore, an oiling assembly 27 is installed. As material h is transported to the loading end a, it passes through the oiling channel 274. The oiling frame 271 is connected to the oil supply pipe, allowing oil to drip from the upper oiling roller 272 and simultaneously coat both sides of material h with the lower oiling roller 273, achieving automation. The material is coated with oil, and the third drive component can simultaneously drive the lower oiling roller 273 to rotate, improving the oiling effect. A collection bucket can also be placed below the oiling component to collect the oil flowing down from the oiling component, avoiding workshop pollution and recycling the oil. After being coated with oil, the material h moves towards the feeding end a until it abuts against the baffle post 275. At the same time, since the material is disc-shaped, after one end of it abuts against the baffle post on the feeding conveyor, the other end of the disc-shaped material will also abut against the baffle post on the other side as the feeding conveyor rotates, thereby completing the correction and positioning of the material. This is detected by the photoelectric sensor 276, which reminds the transfer beam 3 to clamp the material h into the pre-forming station c, completing the automatic feeding, weighing, and oiling process.

[0037] like Figures 1-4 , Figure 12As shown, the frame 1 has three sets of equidistantly arranged stamping and stretching components 11 at one end corresponding to the preforming station c, a stamping and reverse stretching component 12 at one end corresponding to the reverse stretching station e, and a stamping and punching component 13 at one end corresponding to the punching station f. The stamping and stretching component 11, the stamping and reverse stretching component 12, and the stamping and punching component 13 all include an axially corresponding upper die 111 and a lower die 112. The diameter of the lower die 112 in the preforming station c decreases progressively from the feeding end a to the unloading end b. That is, when the material h enters the preforming station c, to avoid excessive stretching leading to breakage, a disc-shaped... The material h is repeatedly stamped into a cylindrical shape by the upper module 111 and the lower module 112. Then, it is transferred by the transfer robot 4 to the flipping station d for an upside-down flipping process. After flipping, the material h is transferred to the reverse stretching station e. The upper module 111 and the lower module 112 stretch the inside of the material h outward and then transfer it to the punching station f. The upper module 111 with the punching component punches a through hole at the top of the reverse-stretched material h for subsequent installation of fire sprinkler heads. Then, it is transferred to the trimming station g to trim and shrink the bottom of the material h before transferring it to the unloading end b for unloading.

[0038] like Figures 1-4 , Figure 12 As shown, the flipped material h is then transferred to the stamping and reverse-pull assembly 12 by the material transfer robot 4. The upper mold 111 in the stamping and reverse-pull assembly 12 is inserted into the hollow inner wall of the material h facing upwards, and works with the lower mold 112 to stretch it in the opposite direction, thereby increasing the radial tensile stress of the fire extinguisher cylinder and preventing the cylinder from wrinkling. The whole process is fully automated and mechanized, which replaces manual labor, improving product quality and production efficiency. After being stretched in the opposite direction, the material h becomes material h with the top facing upwards and the hollow opening facing downwards. It is then transferred to the stamping and punching assembly 13, where a through hole is punched at the top for subsequent installation of the fire sprinkler head. Then it is transferred to the edge cutting station g.

[0039] like Figure 1 , Figure 10 , Figure 11 , Figure 12As shown, one end of the frame 1 corresponding to the trimming station g is provided with a trimming and narrowing device 6. The trimming and narrowing device 6 includes a rotating seat 61 for placing material h, a rotary drive assembly 62 for driving the rotating seat 61 to rotate, an upper pressing mechanism disposed above the rotating seat 61 to hold the material, and a trimming mechanism disposed on one side of the rotating seat 61. The upper pressing mechanism includes a pressing guide wheel 63 disposed corresponding to the rotating seat 61 and an upper pressing lifting assembly for driving the pressing guide wheel 63 axially closer to or further away from the rotating seat 61. The trimming mechanism includes a trimming bracket 64 and a trimming mechanism movably connected to the trimming bracket 64. The device includes a trimming guide wheel 65, a trimming blade 66 mounted on the trimming guide wheel 65, and a radial drive assembly for driving the trimming blade 66 to move horizontally closer to or away from the rotating base 61. The trimming blade 66 includes a trimming portion 661 and a constriction portion 662. The outer diameter of the trimming portion 661 is larger than the outer diameter of the constriction portion 662. The trimming portion 661 is located below the constriction portion 662, and a stepped portion 663 is formed between the trimming portion 661 and the constriction portion 662. The radial drive assembly includes a trimming seat 67 located at the bottom of the trimming bracket 64, and a radial drive assembly located on the side of the trimming seat 67 away from the rotating base 61. The radial drive cylinder 671 drives the trimming bracket 64 to move closer to or away from the rotating seat 61. The upper pressure lifting assembly includes an upper pressure lifting frame 7, an upper pressure lifting cylinder 71 disposed on the top of the upper pressure lifting frame 7, an upper pressure mounting seat 72 for the pressure guide wheel 63 to be movably mounted, and an upper pressure guide assembly disposed between the upper pressure lifting frame 7 and the upper pressure mounting seat 72. The output end of the upper pressure lifting cylinder 71 is connected to the upper pressure mounting seat 72 and drives the upper pressure mounting seat 72 to move closer to or away from the rotating seat 61. The rotating seat 61 has an automatic waste discharge assembly on one side. The automatic waste discharge assembly includes a waste discharge lifting cylinder 73, a waste discharge guide plate 74 set at the conveying end of the waste discharge lifting cylinder 73, and a waste discharge pushing plate 75 set on the waste discharge guide plate 74. The waste discharge guide plate 74 has a waste discharge groove 741 sleeved on the outer periphery of the rotating seat 61 at one end. The waste discharge guide plate 74 is equipped with a waste pushing cylinder 76. The output end of the waste pushing cylinder 76 is connected to the waste discharge pushing plate 75 and drives the waste discharge pushing plate 75 to push the waste material at the waste discharge groove 741 along the waste discharge guide plate 74.

[0040] like Figures 1-4 , Figures 10-12As shown, the punched material h is placed in the trimming station g. The bottom of the processed material h will have irregular waste edges. The material h is on the rotating seat 61. The lifting cylinder 71 drives the pressing guide wheel 63 to press against the side of the material h away from the rotating seat 61, thus positioning the fire extinguisher cylinder. Then, the rotation drive assembly 62 drives the fire extinguisher cylinder to rotate and simultaneously rotates the pressing guide wheel 63 circumferentially. At this time, the radial drive cylinder 671 drives the trimming guide wheel 65 to approach the rotating seat 61, causing the trimming blade 66 to abut against the surface of the fire extinguisher cylinder to be cut, causing the trimming guide wheel 65 to rotate as well, thus completing the automatic rotary cutting of the fire extinguisher cylinder. The trimming blade 66 includes a trimming part 661 and a constricted part 662. The trimming part 661 has a sharp edge for cutting waste edges, while the constricted part 662 is located above the trimming part and has an outer diameter smaller than the trimming part, causing the trimming part 661 and the constricted part 662 to meet. A stepped section 663 is formed between 62, and then the cut-off part of the fire extinguisher cylinder is held in place by the narrowing section 662 and brought inward to complete the narrowing, which facilitates the subsequent assembly of the fire extinguisher. After completion, the radial drive component and the upper pressure lifting component are released from the restriction. The waste discharge lifting cylinder 73 pushes the waste discharge guide plate 74 to move upward, moving the fire extinguisher cylinder and the waste edge cut off at the bottom together away from the rotating seat 61. Then, the material transfer robot clamps the fire extinguisher cylinder and discharges it. The waste push cylinder 76 also drives the waste discharge push plate 75 to push the waste material at the waste discharge groove 741 out of the waste discharge guide plate 74 along the waste discharge guide plate 74 for subsequent fire extinguisher cylinder edge cutting and narrowing, thereby completing automatic waste discharge, improving processing efficiency, realizing automated edge cutting, reducing labor costs, and improving production efficiency and pass rate. Then, the material transfer robot 4 transfers the processed material h out of the frame 1 and discharges it through the discharge end b, completing the entire automated production.

Claims

1. An automated production line for stretching fire extinguisher cylinders, comprising a frame, wherein the two ends of the frame are a loading end and a unloading end, characterized in that: The frame is sequentially arranged with a pre-forming station, a flipping station, a reverse stretching station, a punching station, and a trimming station along the direction from the loading end to the unloading end. An automatic feeding device is provided on one side of the frame corresponding to the loading end. The center distances between the pre-forming station, flipping station, reverse stretching station, punching station, and trimming station are all the same. A transfer beam is provided on one side of the frame. The transfer beam is equipped with a transfer robot that corresponds to and is equidistant from each of the automatic feeding device, pre-forming station, flipping station, reverse stretching station, punching station, and trimming station. The transfer beam is equipped with a transfer drive component that intermittently drives the transfer robot to slide radially between the loading end and the unloading end. The transfer drive component drives the transfer robot to clamp the material at the automatic feeding device into the pre-forming station and transfer the cylindrical material in the pre-forming station to the flipping station. The material is transferred from the flipping station to the reverse stretching station, then to the punching station, then to the trimming station, and finally to the unloading station. The material transfer drive assembly includes a material transfer drive platform at the unloading end and a support base at the loading end. One end of the material transfer beam is equipped with a material transfer slide rail, and the material transfer beam is movably connected to the material transfer slide rail. The material transfer drive platform and the support base are both connected to the material transfer slide rail through a material transfer connecting seat. The material transfer connecting seat is equipped with a material transfer drive motor, and the conveying end of the material transfer drive motor is equipped with a material transfer gear. The material transfer beam is equipped with a material transfer rack that meshes with the material transfer gear, and the material transfer drive motor intermittently drives the material transfer beam to intermittently slide radially back and forth along the material transfer slide rail.

2. The automatic production line for stretching fire extinguisher cylinders according to claim 1, characterized in that: The material transfer drive platform and the support base are intermittently driven by a material transfer lifting mechanism that raises and lowers the material transfer beam axially at one end. Both the material transfer drive platform and the support base are equipped with lifting guide components connected to the material transfer beam. The lifting guide components include a lifting guide sleeve connected to the material transfer connecting seat and a guide optical shaft disposed within the lifting guide sleeve. The material transfer lifting mechanism includes a reducer disposed below the material transfer beam, a lifting drive rod disposed at the output end of the reducer, and a lifting linkage rod connected to the material transfer beam. One end of the lifting linkage rod is hinged to the material transfer beam, and the other end is hinged to the lifting drive rod. The reducer drives the lifting drive rod to rotate circumferentially. When the lifting drive rod faces the material transfer beam, the lifting linkage rod will drive the material transfer beam and the material transfer drive motor to rise along the guide optical shaft. When the lifting drive rod moves away from the material transfer beam, the lifting linkage rod will drive the material transfer beam and the material transfer drive motor to move downward.

3. An automated production line for stretching fire extinguisher cylinders according to any one of claims 1-2, characterized in that: The frame is provided with three sets of equidistantly arranged stamping and stretching components at one end corresponding to the preforming station, a stamping reverse stretching component at one end corresponding to the reverse stretching station, and a stamping and punching component at one end corresponding to the punching station. The stamping and stretching component, the stamping reverse stretching component, and the stamping and punching component all include an axially corresponding upper die and a lower die. The diameter of the lower die in the preforming station decreases gradually from the feeding end to the unloading end.

4. An automated production line for stretching fire extinguisher cylinders according to any one of claims 1-2, characterized in that: The automatic feeding device includes at least one feeding seat for stacking materials, a conveying mechanism for delivering materials to the feeding end, and a feeding mechanism for transferring materials from the feeding seat to the conveying mechanism. The feeding mechanism includes a gantry frame mounted above the feeding seat and the conveying mechanism, a transfer seat movably mounted on the gantry frame, a lifting mechanism mounted on the transfer seat for extracting materials, a first drive assembly for axially lifting the lifting mechanism, and a second drive assembly for reciprocating the lifting mechanism along the gantry frame between the feeding seat and the conveying mechanism. The conveying mechanism includes a feeding conveyor frame and several conveyors mounted on the feeding conveyor frame. The feeding conveyor frame includes a moving roller and a third drive assembly that drives the transmission roller to rotate toward the frame. One end of the feeding conveyor frame corresponding to the transmission roller is equipped with an oiling assembly. The oiling assembly includes an oiling frame mounted on the feeding conveyor frame, an upper oiling roller movably mounted on the oiling frame and a lower oiling roller parallel to the transmission roller, and an oil supply pipe. An oiling channel is provided between the upper and lower oiling rollers for material to pass through. Two opposing baffles are provided at one end of the feeding conveyor frame corresponding to the feeding end. The cross-section of the baffles is higher than the cross-section of the transmission roller. A photoelectric sensor is provided at the bottom of the baffles on the feeding conveyor frame.

5. An automated production line for stretching fire extinguisher cylinders according to any one of claims 1-2, characterized in that: The frame is equipped with a trimming and narrowing device at one end corresponding to the trimming station. The trimming and narrowing device includes a rotating seat for placing materials, a rotary drive assembly for driving the rotating seat, an upper pressure mechanism positioned above the rotating seat to hold the materials in place, and a trimming mechanism positioned on one side of the rotating seat. The upper pressure mechanism includes a pressure guide wheel corresponding to the rotating seat and an upper pressure lifting assembly that drives the pressure guide wheel axially towards or away from the rotating seat. The trimming mechanism includes a trimming bracket, a trimming guide wheel movably connected to the trimming bracket, a trimming blade mounted on the trimming guide wheel, and a radial drive assembly that drives the trimming blade horizontally towards or away from the rotating seat. The trimming blade includes a trimming portion and a narrowing portion. The outer diameter of the trimming portion is larger than the outer diameter of the narrowing portion. The trimming portion is positioned below the narrowing portion, and a stepped portion is formed between the trimming portion and the narrowing portion. The radial drive assembly includes a trimming seat positioned at the bottom of the trimming bracket and a radial drive assembly positioned on the side of the trimming seat away from the rotating seat. The system includes a cylinder, a cutting guide assembly disposed between the cutting edge seat and the cutting edge bracket, a radial drive cylinder that drives the cutting edge bracket to move closer to or away from the rotating seat, an upper pressure lifting assembly including an upper pressure lifting frame, an upper pressure lifting cylinder disposed on the top of the upper pressure lifting frame, an upper pressure mounting seat for movable installation of the pressure guide wheel, and an upper pressure guide assembly disposed between the upper pressure lifting frame and the upper pressure mounting seat. The output end of the upper pressure lifting cylinder is connected to the upper pressure mounting seat and drives the upper pressure mounting seat to move closer to or away from the rotating seat. An automatic waste discharge assembly is provided on one side of the rotating seat. The automatic waste discharge assembly includes a waste discharge lifting cylinder, a waste discharge guide plate disposed at the conveying end of the waste discharge lifting cylinder, and a waste discharge pusher plate disposed on the waste discharge guide plate. The waste discharge guide plate has a waste discharge groove sleeved on the outer periphery of the rotating seat at one end. A waste pusher cylinder is provided on the waste discharge guide plate. The output end of the waste pusher cylinder is connected to the waste discharge pusher plate and drives the waste discharge pusher plate to push the waste material at the waste discharge groove along the waste discharge guide plate.

6. The automatic production line for stretching fire extinguisher cylinders according to claim 4, characterized in that: A gap exists between the drive rollers. A weighing component is provided at one end of the feeding conveyor frame corresponding to the lifting mechanism. The weighing component includes a weighing base plate at the bottom of the feeding conveyor frame, a weighing lifting cylinder on the weighing base plate, a weighing sensor at the output end of the weighing lifting cylinder, and a weighing support column at the detection end of the weighing sensor. The weighing support column is positioned at the gap and is moved through or retracted into the gap by the weighing lifting cylinder. The lifting mechanism includes a lifting seat on a material transfer base and several suction cups on the lifting seat. The first driving component includes a lifting guide rail and a lifting drive motor mounted on a material transfer seat. The material lifting seat is mounted on the lifting guide rail. The lifting drive motor drives the material lifting seat to reciprocate along the axial direction of the lifting guide rail via a synchronous belt, a gear and rack structure, or a screw and sleeve structure. The second driving component includes a material transfer guide rail and a material transfer drive motor mounted on a gantry frame. The material transfer seat is mounted on the material transfer guide rail. The material transfer drive motor drives the material transfer seat to reciprocate between the loading seat and the conveying mechanism via a synchronous belt, a gear and rack structure, or a screw and sleeve structure.

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