A fully automatic multi-mode vertical roll forming machine

Abstract

The application discloses a full-automatic multi-mode vertical roll forming machine, and relates to the technical field of automobile brake drum production equipment, comprising a supporting assembly, a lower die assembly, an upper die assembly, an outer die assembly, a feeding assembly and a brake drum. The supporting assembly is internally provided with the lower die assembly and the upper die assembly, and the feeding assembly is arranged between the lower die assembly and the upper die assembly. When the brake drum is subjected to roll forming processing, the brake drum reaches between the lower die assembly and the upper die assembly through the feeding assembly. The outer die assembly is arranged on both sides of the upper die assembly, and can not only realize roll forming of the brake drum, but also ensure that the forces on both sides of the brake drum are balanced during the roll forming process, thereby avoiding the phenomenon that the brake drum deviates. The feeding assembly facilitates feeding and discharging of the brake drum, solves the problem that manual feeding and discharging has safety hazards, and can also monitor abnormal conditions of related die bodies in real time, facilitates demolding and ensures the precision of product roll forming.

Description

Technical Field

[0001] This invention relates to the field of automotive brake drum production equipment technology, and in particular to a fully automatic multi-mold vertical rolling machine. Background Technology

[0002] In the existing technology, the rolling process of automobile brake drums is mostly horizontal rolling. The process before the rolling process of brake drum is the pressing mold. After the pressing mold is used, the steel shell is transported to the rolling process through the conveyor rollers.

[0003] In horizontal roll forming, the inner mold is positioned on its side, requiring manual placement of the brake drum, which poses a significant safety hazard and is inefficient. The outer mold is positioned above the inner mold, and the brake drum rotates through the pressing action between the inner and outer molds to complete the roll forming process. However, because the outer mold is only positioned above the inner mold, the brake drum is prone to wobbling and deflection during the roll forming process, affecting roll forming accuracy and posing a certain degree of danger. Furthermore, the roll forming molds may wear or malfunction after prolonged use; if not detected promptly, this can affect the accuracy of wheel hub roll forming and result in defective products. Finally, manual demolding is often required after roll forming, which is labor-intensive.

[0004] Therefore, it is necessary to invent a fully automatic multi-mode vertical rolling machine to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a fully automatic multi-mold vertical roll forming machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic multi-mold vertical roll forming machine, comprising a support assembly, a lower mold assembly, an upper mold assembly, an outer mold assembly, a feeding assembly, and a brake drum;

[0007] The lower mold assembly includes a lower mold base, and a lower mold body is fixedly disposed in the middle of the upper surface of the lower mold base; the upper mold assembly includes an upper mold base, and an upper mold body is fixedly disposed in the middle of the lower surface of the upper mold base, and both the upper mold body and the lower mold body are adapted to the brake drum.

[0008] The outer mold assembly includes two support frames. Each support frame has a positioning rod at both ends of its inner side. Each positioning rod has a first outer mold body at both ends. The middle of the other positioning rod has a second outer mold body. The first outer mold body is adapted to the end of the brake drum, and the second outer mold body is adapted to the middle of the brake drum.

[0009] The feeding assembly includes a movable frame, an extension frame fixedly mounted on the center of the upper surface of the movable frame, a circular through groove through the center of the upper surface of the extension frame, an annular seat through the interior of the circular through groove, a plurality of grooves arranged in a circular array on the upper surface of the annular seat, a guide plate inside the groove, a top spring between the lower surface of the guide plate and the bottom of the groove, and a pressure sensor in the groove below the top spring.

[0010] Preferably, the support assembly includes a top plate and a bottom plate, and support columns are fixedly installed at the four corners of the sides of the top plate and the bottom plate that are close to each other; a hydraulic rod is fixedly installed in the middle of the upper surface of the bottom plate, and the top end of the hydraulic rod is movably connected to the middle of the lower surface of the lower mold base through a bearing; a motor base is fixedly installed in the middle of one side of the top plate, and a drive motor is fixedly installed in the middle of the lower surface of the motor base; a drive pulley is fixedly installed on the output shaft of the drive motor.

[0011] Preferably, the lower mold base is located above the base plate, and a positioning block with a boss-shaped structure is fixedly provided at the top center of the lower mold body. The top of the outer side wall of the positioning block is provided with multiple positioning grooves distributed in a ring array, and the inner walls on both sides of the positioning groove are set as inclined structures.

[0012] Preferably, the upper surface of the lower mold base is fixedly provided with a plurality of limiting blocks arranged in a circular array, and the top ends of the outer walls on both sides of the limiting blocks are configured as inclined structures.

[0013] Preferably, the bottom center of the upper mold body is provided with a positioning slot adapted to the positioning block, and the top of the inner side wall of the positioning slot is fixedly provided with a plurality of positioning blocks adapted to the positioning slot, and the bottom of the outer walls on both sides of the positioning blocks are set with an inclined structure; the lower surface of the upper mold base is fixedly provided with a ring-shaped frosting disc, and the lower surface of the frosting disc is provided with a plurality of heat dissipation holes; the upper surface of the upper mold base is fixedly provided with a drive shaft, and the drive shaft is connected to the center of the top plate through a bearing, and the top of the drive shaft is fixedly provided with a drive pulley, and the drive pulley is connected to the drive pulley through a drive belt.

[0014] Preferably, the support frame is internally provided with a fixing frame, and a three-way air guide pipe is inserted through a through hole in the middle of the fixing frame. An inclined air outlet is provided at both ends and the middle of one side of the air guide pipe. The air outlets at both ends of the air guide pipe are inclined towards the first outer mold body, and the air outlet in the middle of the air guide pipe is inclined towards the second outer mold body. An air inlet pipe is fixedly provided in the middle of the air guide pipe and extends to the outside of the support frame. A rotary joint is provided at one end of the air inlet pipe.

[0015] Preferably, a hydraulic push rod is fixedly provided at the middle of the outer side of the support frame, and a support seat is fixedly provided at the end of the hydraulic push rod away from the support frame. Both ends of the support seat are fixedly provided with sliding sleeves that are adapted to the support column.

[0016] Preferably, an annular plate is fixedly provided at the top of the outer side wall of the annular seat, and the annular plate is movably connected to the top of the inner side wall of the circular through groove through a bearing. The lower surface of the annular seat is provided with a plurality of limiting grooves that are adapted to the limiting blocks. The bottom ends of the inner walls on both sides of the limiting groove are set as inclined structures. The upper surface of the annular seat is fixedly provided with a plurality of fixing blocks arranged in a ring array, and the fixing blocks correspond to the grinding disc.

[0017] Preferably, the upper surface of the movable frame is provided with an inclined feeding roller and a feeding roller at both ends, the lower surface of the movable frame is provided with a square groove through the middle, and the upper surface of the movable frame is provided with sliding holes adapted to the support columns at the four corners.

[0018] Preferably, a first electromagnetic region and a second electromagnetic region are embedded inside the annular seat, wherein half of the adjacent guide plates correspond to the first electromagnetic region and the other half of the adjacent guide plates correspond to the second electromagnetic region.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention features a support assembly containing a lower mold assembly and an upper mold assembly, with a feeding assembly positioned between them. During the rolling process of the brake drum, the brake drum reaches the space between the lower and upper mold assemblies via the feeding assembly. The lower mold assembly can lift the brake drum below the upper mold assembly, allowing the lower and upper mold assemblies to clamp and position the brake drum. By providing outer mold assemblies on both sides of the upper mold assembly, the outer mold assemblies not only roll the brake drum but also ensure balanced force on both sides of the brake drum during the rolling process, thus preventing the brake drum from swaying. The feeding assembly facilitates the loading and unloading of the brake drum, thereby solving the safety hazards associated with manual loading and unloading.

[0021] 2. This invention, by setting up an upper mold assembly and a lower mold assembly, each comprising an upper mold body and a lower mold body respectively, provides a positioning block at the top of the lower mold body and a positioning groove at the bottom of the upper mold body. The positioning block and the positioning groove cooperate to improve the connection stability between the upper and lower mold bodies, thereby enhancing the stability of the inner mold during the brake drum rolling process. By opening a positioning groove at the top of the positioning block and setting a positioning block inside the positioning groove, the positioning block and the positioning groove cooperate to allow the upper mold body to drive the lower mold body to rotate, thereby ensuring that the rotational stress at both ends of the brake drum is the same, and thus ensuring the stability of the brake drum rolling process.

[0022] 3. This invention incorporates an air guide pipe inside the outer mold assembly. Each end and the middle of one side of the air guide pipe has an air outlet. The air guide pipe can be connected to an external air pump, which delivers high-pressure gas to the air outlets. The two sets of air outlets are inclined towards the first and second outer mold bodies, respectively. Therefore, the high-pressure gas ejected from the air outlets can travel along the first and second outer mold bodies to the surface of the brake drum. The high-pressure gas flows along the surface of the brake drum, and both sides of the brake drum are subjected to the same gas pressure, thereby further improving the stability of the brake drum. Furthermore, the gas flowing on the surface of the brake drum also cools the brake drum, thus improving the molding effect of the brake drum.

[0023] 4. This invention, by setting a groove, a guide plate, and a top spring, and placing a pressure sensor in the groove, allows the brake drum bottom to press the guide plate into the groove, compressing the top spring. As the top spring recovers its elastic deformation, it presses the guide plate firmly against the bottom of the brake drum, enhancing the brake drum's stability. Furthermore, the pressure sensor in the groove, in conjunction with the top spring and guide plate, can monitor the pressure exerted by the lower end of the brake drum on the guide plate in real time. This indirectly allows for the determination of whether one or more of the lower mold body, upper mold body, first outer mold body, and second outer mold body exhibit wear or damage, thus facilitating real-time monitoring of the mold bodies and ensuring the rolling accuracy and quality of the brake drum.

[0024] 5. The present invention embeds a first electromagnetic region and a second electromagnetic region inside the annular seat. When the upper mold body is detached from the brake drum, the first electromagnetic region and the second electromagnetic region are alternately energized and de-energized, so that the corresponding guide plates of the two regions alternately impact the two sides of the bottom of the brake drum. Under the action of the vibration generated by the impact and the weight of the brake drum itself, the two sides of the brake drum are gradually detached from the interior of the upper mold body, thus completing the demolding work of the upper mold body and reducing the labor intensity of manual demolding. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a front view of the overall structure of the present invention.

[0027] Figure 3 This is a schematic diagram of the support component structure of the present invention.

[0028] Figure 4 This is a schematic diagram of the lower mold assembly structure of the present invention.

[0029] Figure 5 This is a schematic diagram of the upper mold assembly structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the outer mold assembly structure of the present invention.

[0031] Figure 7 This is a schematic diagram of the air outlet structure of the present invention.

[0032] Figure 8 This is a schematic diagram of the air duct structure of the present invention.

[0033] Figure 9 This is a schematic diagram of the feeding assembly structure of the present invention.

[0034] Figure 10 This is a schematic diagram of the movable frame structure of the present invention.

[0035] Figure 11 This is a bottom view of the ring seat structure of the present invention.

[0036] Figure 12 This is a schematic diagram of the ring seat structure of the present invention.

[0037] In the diagram: 1. Support assembly; 2. Lower mold assembly; 3. Upper mold assembly; 4. Outer mold assembly; 5. Feeding assembly; 6. Brake drum; 101. Top plate; 102. Bottom plate; 103. Support column; 104. Hydraulic rod; 105. Motor base; 106. Drive motor; 107. Drive pulley; 201. Lower mold base; 202. Lower mold body; 203. Positioning block; 204. Positioning groove; 205. Limiting block; 301. Upper mold base; 302. Upper mold body; 303. Positioning slot; 304. Positioning clip; 305. Grinding disc; 306. Heat dissipation hole; 307. Drive shaft; 308. Drive pulley; 309. 401. Moving belt; 402. Support frame; 403. Positioning rod; 404. First outer mold body; 405. Second outer mold body; 406. Fixed frame; 407. Air duct; 408. Air outlet; 409. Air inlet pipe; 410. Rotary joint; 411. Hydraulic push rod; 412. Support seat; 501. Sliding sleeve; 502. Movable frame; 503. Extension frame; 504. Circular through slot; 505. Annular seat; 506. Annular plate; 507. Limiting slot; 508. Fixing block; 509. Groove; 510. Guide plate; 511. Top spring; 512. Feeding roller; 513. Square groove; 514. Sliding hole. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] First Embodiment

[0040] This invention provides, for example Figures 1 to 12 The fully automatic multi-mold vertical roll forming machine shown includes a support assembly 1, a lower mold assembly 2, an upper mold assembly 3, an outer mold assembly 4, a feeding assembly 5, and a brake drum 6. The outer mold assembly 4 is located on both sides of the upper mold assembly 3, the feeding assembly 5 is located between the lower mold assembly 2 and the upper mold assembly 3, and the brake drum 6 is located between the upper mold assembly 3 and the feeding assembly 5. The lower mold assembly 2, the upper mold assembly 3, the outer mold assembly 4, the feeding assembly 5, and the brake drum 6 are all located inside the support assembly 1.

[0041] The support assembly 1 includes a top plate 101 and a bottom plate 102. Support columns 103 are fixedly installed at the four corners of the sides of the top plate 101 and the bottom plate 102 that are close to each other. Specifically, a hydraulic rod 104 is fixedly installed in the middle of the upper surface of the bottom plate 102. The top end of the hydraulic rod 104 is movably connected to the middle of the lower surface of the lower mold base 201 through a bearing. A motor base 105 is fixedly installed in the middle of one side of the top plate 101. A drive motor 106 is fixedly installed in the middle of the lower surface of the motor base 105. A drive pulley 107 is fixedly installed on the output shaft of the drive motor 106.

[0042] The lower mold assembly 2 includes a lower mold base 201, which is located above the base plate 102. Specifically, a lower mold body 202 is fixedly disposed in the middle of the upper surface of the lower mold base 201, and a boss-shaped positioning block 203 is fixedly disposed in the middle of the top of the lower mold body 202. Multiple positioning grooves 204 arranged in a ring array are opened on the top of the outer side wall of the positioning block 203, and the inner walls on both sides of the positioning groove 204 are set as inclined structures.

[0043] More specifically, the upper surface of the lower mold base 201 is fixedly provided with a plurality of limiting blocks 205 arranged in a ring array. The top of the outer walls on both sides of the limiting blocks 205 are set with an inclined structure. The inclined structure facilitates the insertion of the limiting blocks 205 into the limiting grooves 506.

[0044] The upper mold assembly 3 includes an upper mold base 301, which is located below the top plate 101. Specifically, an upper mold body 302 is fixedly disposed in the middle of the lower surface of the upper mold base 301. Both the upper mold body 302 and the lower mold body 202 are adapted to the brake drum 6. A positioning slot 303 adapted to the positioning block 203 is opened in the middle of the bottom end of the upper mold body 302. Multiple positioning blocks 304 adapted to the positioning groove 204 are fixedly disposed at the top of the inner side wall of the positioning slot 303. The bottom ends of the outer walls on both sides of the positioning blocks 304 are set as inclined structures.

[0045] More specifically, a ring-shaped grinding disc 305 is fixedly provided on the lower surface of the upper mold base 301, and a plurality of heat dissipation holes 306 are provided on the lower surface of the grinding disc 305; and a drive shaft 307 is fixedly provided in the middle of the upper surface of the upper mold base 301, and the drive shaft 307 is connected to the middle of the top plate 101 through a bearing, and a drive pulley 308 is fixedly provided at the top of the drive shaft 307, and the drive pulley 308 is connected to the drive pulley 107 through a drive belt 309.

[0046] Specifically, the drive motor 106 drives the transmission pulley 308 to rotate via the drive pulley 107 and the transmission belt 309, thereby driving the transmission shaft 307 to rotate. The transmission shaft 307 drives the upper mold base 301 to rotate, thereby driving the upper mold body 302 to rotate. The upper mold body 302, through the cooperation of the positioning block 304 and the positioning groove 204, can drive the lower mold body 202 to rotate. The lower mold body 202 can drive the lower mold base 201 to rotate. The lower mold base 201, through the limiting block 205 and the limiting groove 506, drives the annular seat 504 to rotate. The upper mold base 301 and the annular seat 504 respectively drive the two ends of the brake drum 6 to rotate, thereby realizing the driving of the brake drum 6 so as to roll the brake drum 6.

[0047] The outer mold assembly 4 includes two support frames 401, which are located on both sides of the upper mold base 301. Specifically, each end of the inner side of the support frame 401 is provided with a positioning rod 402. Each end of one positioning rod 402 is provided with a first outer mold body 403, and the middle of the other positioning rod 402 is provided with a second outer mold body 404. The first outer mold body 403 is adapted to the end of the brake drum 6, and the second outer mold body 404 is adapted to the middle of the brake drum 6. The first outer mold body 403 and the second outer mold body 404 can respectively realize the rolling processing of the end and the middle of the brake drum 6.

[0048] More specifically, a fixed frame 405 is provided inside the support frame 401. A three-way air guide pipe 406 is installed through a through hole in the middle of the fixed frame 405. An inclined air outlet 407 is provided at both ends and the middle of one side of the air guide pipe 406. The air outlet 407 at both ends of the air guide pipe 406 is inclined towards the first outer mold body 403, and the air outlet 407 in the middle of the air guide pipe 406 is inclined towards the second outer mold body 404. In addition, an air inlet pipe 408 is fixedly provided in the middle of the air guide pipe 406, and the air inlet pipe 408 extends to the outside of the support frame 401. A rotary joint 409 is provided at one end of the air inlet pipe 408. The rotary joint 409 can be connected to the output end of the air pump, so that high-pressure gas can be injected into the air inlet pipe 408 through the air guide pipe 406 and finally sprayed out by the air outlet 407 to cool the rolling part of the brake drum 6.

[0049] Furthermore, a hydraulic push rod 410 is fixedly installed in the middle of the outer side of the support frame 401. A support base 411 is fixedly installed at the end of the hydraulic push rod 410 away from the support frame 401. Both ends of the support base 411 are fixedly installed with sliding sleeves 412 that are adapted to the support column 103. A locking bolt is inserted into the screw hole opened in the middle of the outer wall of the sliding sleeve 412. The locking bolt can limit the sliding sleeve 412 to the outside of the support column 103, thereby realizing the positioning of the outer mold assembly 4.

[0050] The feeding assembly 5 includes a movable frame 501, which is located between the lower mold base 201 and the upper mold base 301. Specifically, an extension frame 502 is fixedly installed in the middle of the upper surface of the movable frame 501. A circular through groove 503 is opened through the middle of the upper surface of the extension frame 502. An annular seat 504 is opened through the inside of the circular through groove 503. An annular plate 505 is fixedly installed at the top of the outer side wall of the annular seat 504. The annular plate 505 is movably connected to the top of the inner side wall of the circular through groove 503 through a bearing. A plurality of limiting grooves 506 adapted to the limiting block 205 are opened on the lower surface of the annular seat 504. The bottom ends of the inner walls on both sides of the limiting groove 506 are set as inclined structures. The inclined structure facilitates the insertion of the limiting block 205 into the limiting groove 506. The cooperation between the limiting block 205 and the limiting groove 506 allows the lower mold base 201 to drive the annular seat 504 to rotate.

[0051] More specifically, the upper surface of the annular seat 504 is fixedly provided with a plurality of fixing blocks 507 arranged in an annular array. The fixing blocks 507 correspond to the grinding disc 305. The fixing blocks 507 and the grinding disc 305 cooperate to increase the friction force at both ends of the brake drum 6, thereby improving the clamping stability of the brake drum 6.

[0052] Furthermore, the upper surface of the annular seat 504 is provided with a plurality of grooves 508 arranged in an annular array. A guide plate 509 is provided inside the groove 508. A top spring 510 is provided between the lower surface of the guide plate 509 and the bottom of the groove 508. When the brake drum 6 is rolled, the bottom of the brake drum 6 presses the guide plate 509 into the groove 508, and the top spring 510 is compressed. Under the elastic deformation of the top spring 510, the guide plate 509 can be pressed tightly against the bottom of the brake drum 6, thereby strengthening the fastening of the brake drum 6.

[0053] Furthermore, the upper surface of the movable frame 501 is provided with an inclined unloading roller 511 and an loading roller 512 at both ends, and a square groove 513 is provided through the middle of the lower surface of the movable frame 501. The lower mold base 201 can pass through the square groove 513 to lift the annular seat 504. At the same time, sliding holes 514 adapted to the support column 103 are provided through the four corners of the upper surface of the movable frame 501. A limit ring is provided on the outer side of the support column 103. The limit ring can limit the position of the movable frame 501, so that the movable frame 501 is located above the lower mold assembly 2 in the initial state of the device, thereby ensuring that the brake drum 6 can move with the loading roller 512 to the upper part of the lower mold assembly 2.

[0054] When using this device to roll-form the brake drum 6, the brake drum 6 is placed on one side of the feeding assembly 5. The feeding assembly 5 conveys the brake drum 6 to the top of the lower die assembly 2. At this time, the lower die assembly 2 lifts the brake drum 6 upwards, and simultaneously drives the feeding assembly 5 to move upwards until the lower die assembly 2, the feeding assembly 5, and the upper die assembly 3 clamp and fix both ends of the brake drum 6. During this process, the two outer die assemblies 4 move towards the upper die assembly 3, so that the brake drum 6 can be precisely fitted onto the outside of the upper die assembly 3 and the lower die assembly 2. Then, the support assembly 1 drives the upper die assembly 3 to rotate, and the upper die assembly 3 and the lower die assembly 2 drive the brake drum 6 to rotate. At the same time, the outer die assembly 4 applies pressure to the outer wall of the brake drum 6, thus realizing the rolling process of the brake drum 6. After processing, the lower die assembly 2 and the feeding assembly 5 are reset. At this time, the subsequent brake drum 6 is placed on the feeding assembly 5. The subsequent unprocessed brake drum 6 can extrude the processed brake drum 6, thereby realizing the cyclic feeding of the device.

[0055] During the process of the lower mold assembly 2 lifting the brake drum 6, the hydraulic rod 104 drives the lower mold base 201 to move upward, and the lower mold base 201 drives the lower mold body 202 to move upward until the lower mold body 202 passes through the annular seat 504 and inserts into the bottom end of the brake drum 6. At this time, the upper surface of the lower mold base 201 is in contact with the lower surface of the annular seat 504. The hydraulic rod 104 continues to drive the lower mold base 201 to move upward, and the annular seat 504 follows the lower mold base 201 to move upward until the top end of the brake drum 6 is sleeved on the upper mold body 30. On the outside of 2, the hydraulic push rod 410 drives the support frame 401 to move, thereby driving the first outer mold body 403 and the second outer mold body 404 to move. The first outer mold body 403 and the second outer mold body 404 apply pressure to the outer wall of the brake drum 6, causing the brake drum 6 to slide outside the upper mold body 302 and the lower mold body 202 until the brake drum 6 slides to the middle position of the two outer mold components 4. At this time, the annular seat 504 and the upper mold seat 301 clamp and fix the two ends of the brake drum 6, and the positioning of the brake drum 6 can be completed.

[0056] During the roll forming process of the brake drum 6, the drive motor 106 drives the transmission pulley 308 to rotate via the drive pulley 107 and the transmission belt 309, thereby driving the transmission shaft 307 to rotate. The transmission shaft 307 drives the upper mold base 301 to rotate, which in turn drives the upper mold body 302 to rotate. The upper mold body 302, through the cooperation of the positioning block 304 and the positioning groove 204, can drive the lower mold body 202 to rotate. The lower mold body 202 can drive the lower mold base 201 to rotate. The lower mold base 201, through the limiting block 205 and the limiting groove 506, drives the annular seat 504 to rotate. The upper mold base 301 and the annular seat 504 drive the two ends of the brake drum 6 to rotate synchronously, thereby achieving the driving of the brake drum 6. During the rotation of the brake drum 6, the two sets of first outer mold bodies 403 and second outer mold bodies 404 apply pressure to the two ends and the middle of the brake drum 6, respectively, so that the brake drum 6 completes the roll forming.

[0057] During the roll forming process, the air inlet pipe 408 is connected to the air pump through the rotary joint 409. The air pump delivers high-pressure gas into the air inlet pipe 408. The high-pressure gas in the air inlet pipe 408 is delivered to the air outlet 407 through the air guide pipe 406. The two sets of air outlets 407 are inclined towards the first outer mold body 403 and the second outer mold body 404, respectively. Therefore, the high-pressure gas ejected from the air outlets 407 can reach the surface of the brake drum 6 along the first outer mold body 403 and the second outer mold body 404. The high-pressure gas flows along the surface of the brake drum 6, and both sides of the brake drum 6 are subjected to the same gas pressure, which can further improve the stability of the brake drum 6. In addition, the flow of gas on the surface of the brake drum 6 can also achieve the cooling effect of the brake drum 6, thereby improving the forming effect of the brake drum 6.

[0058] When the feeding assembly 5 is loading and unloading the brake drum 6, the unprocessed brake drum 6 is placed at one end of the loading roller 512. The multiple rollers in the loading roller 512 can rotate to transport the brake drum 6 to the top of the annular seat 504, thereby realizing the loading of the brake drum 6. At the same time, the unprocessed brake drum 6 applies a pushing force to the processed brake drum 6 under the action of the loading roller 512, so that the processed brake drum 6 moves to the unloading roller 511, thereby realizing the unloading of the brake drum 6.

[0059] Second Embodiment

[0060] Because the dimensional accuracy requirements for the brake drum 6 are relatively high, the precision requirements for the lower mold 202, upper mold 302, first outer mold 403, and second outer mold 404 are also relatively high during the rolling process. These molds may experience wear, deformation, or damage after prolonged use. If these issues are not detected in time, they will directly affect the rolling accuracy of the brake drum 6, resulting in defective products. Therefore, any abnormalities in these molds should be closely monitored during the rolling process.

[0061] Specifically, a pressure sensor is provided in the groove 508 below the top spring 510. When the guide plate 509 is squeezed and the top spring 510 is compressed into the groove 508, the pressure sensor transmits the pressure value of the top spring 510 to the controller.

[0062] During the rolling process of the brake drum 6, the controller synchronously controls the hydraulic push rods 410 on both sides to drive the corresponding first outer mold body 403 and second outer mold body 404 to cooperate with the lower mold body 202 and upper mold body 302 to roll the brake drum 6. After the brake drum 6 is squeezed by the mold bodies, it undergoes corresponding deformation. When the mold bodies are not worn or damaged, and the brake drum 6 undergoes uniform deformation, the squeezing force of the lower part of the brake drum 6 on the guide plate 509 is the same (or there may be a very small deviation due to slight differences in the mold bodies, measurement errors, etc.). However, when one or more of the lower mold body 202, upper mold body 302, first outer mold body 403, and second outer mold body 404 are worn or damaged, the brake drum 6 undergoes uneven changes when the mold bodies squeeze it. The squeezing force of the lower part of the brake drum 6 on the guide plate 509 will be different, and the pressure value of the guide plate 509 squeezing the top spring 510 will also be different. Finally, the pressure value detected by the corresponding pressure sensor will also be different. The controller determines the wear or damage (excluding sensor-specific errors) of one or more of the following components by analyzing the pressure values ​​measured by all pressure sensors: lower mold 202, upper mold 302, first outer mold 403, and second outer mold 404. In this case, the machine should be stopped, and each component should be inspected individually. Damaged components should be replaced promptly to prevent disruption to subsequent production. This ensures the quality of the lower mold 202, upper mold 302, first outer mold 403, and second outer mold 404 during the rolling process with brake drum 6, allowing for timely detection of problems and preventing defective products.

[0063] Third Embodiment

[0064] After completing the rolling process of the brake drum 6, it is necessary to consider the issue of detaching the formed brake drum 6 from the lower mold body 202, upper mold body 302, first outer mold body 403, and second outer mold body 404. Specifically, the first outer mold body 403 and the second outer mold body 404 are relatively easy to demold; they can be moved away from the rolled brake drum 6 by controlling the hydraulic push rod 410. However, the lower mold body 202 and the upper mold body 302 are located inside the brake drum 6 and are closely fitted to them after the brake drum 6 is rolled, making their demolding relatively more difficult. Manual demolding would increase the workload.

[0065] When demolding the lower mold body 202, the hydraulic push rod 410 is controlled to make the first outer mold body 403 and the second outer mold body 404 on both sides cooperate with the upper mold base 301 and the upper mold body 302 to clamp the rolled brake drum 6. Then, the hydraulic rod 104 is controlled to drive the lower mold assembly 2 to move downward, which can pull the lower mold body 202 out of the brake drum, thus completing the demolding of the lower mold body 202.

[0066] Specifically, to facilitate the demolding of the upper mold body 302, a first electromagnetic region and a second electromagnetic region are embedded inside the annular seat 504. Half of the adjacent guide plates 509 correspond to the first electromagnetic region, and the other half correspond to the second electromagnetic region. The guide plates 509 are made of paramagnetic material. During the rolling process of the brake drum 6, the guide plates 509 are pressed into the corresponding grooves 508 by the brake drum 6. The controller controls the first electromagnetic region and the second electromagnetic region to be energized, which magnetizes the annular seat 504 and the guide plates 509, and the brake drum 6 is magnetically attracted by both, further improving the tightness of the brake drum 6.

[0067] When it is necessary to detach the upper mold body 302 from the brake drum 6, firstly, following the above method, control the hydraulic rod 104 to drive the lower mold assembly 2 downward, pulling the lower mold body 202 downward a preset distance, so that the lower mold body 202 detaches from the brake drum. At this time, the annular seat 504 will also move downward a preset distance, ensuring that the guide plate 509 can still contact the bottom of the brake drum 6 under the action of the spring that recovers part of the deformation. Then, control the hydraulic push rod 410 to drive the first outer mold body 403 and the second outer mold body 404 on both sides to move a preset distance away from the brake drum 6 after rolling, so that there is a gap between the first outer mold body 403, the second outer mold body 404 and the brake drum 6. Then, control the first electromagnetic area and the second electromagnetic area to alternately turn on and off. When the first or second electromagnetic zone is energized, the magnetically attracted guide plate 509 compresses the top spring 510. When the first or second electromagnetic zone is de-energized, the compressed top spring 510 recovers some elastic deformation, pushing the guide plate 509 upward and impacting one side of the lower end of the brake drum 6 (the impact force can be controlled to prevent damage to the lower end surface of the brake drum 6). By controlling the alternating energization and de-energization of the first and second electromagnetic zones, the corresponding guide plates 509 alternately impact the bottom sides of the brake drum 6. Under the vibration generated by the impact and the weight of the brake drum 6 itself, the sides of the brake drum 6 gradually detach from the interior of the upper mold body 302, completing the demolding work of the upper mold body 302, thereby reducing the labor intensity of manual demolding.

[0068] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully automatic multi-mold vertical roll forming machine, characterized in that, It includes a support assembly (1), a lower mold assembly (2), an upper mold assembly (3), an outer mold assembly (4), a feeding assembly (5), and a brake drum (6); The lower mold assembly (2) includes a lower mold base (201), and a lower mold body (202) is fixedly disposed in the middle of the upper surface of the lower mold base (201); the upper mold assembly (3) includes an upper mold base (301), and an upper mold body (302) is fixedly disposed in the middle of the lower surface of the upper mold base (301). Both the upper mold body (302) and the lower mold body (202) are adapted to the brake drum (6); The outer mold assembly (4) includes two support frames (401). Both ends of the inner side of the support frame (401) are provided with positioning rods (402). The lower end of one positioning rod (402) is provided with a first outer mold body (403), and the middle part of the other positioning rod (402) is provided with a second outer mold body (404). The first outer mold body (403) is adapted to the end of the brake drum (6), and the second outer mold body (404) is adapted to the middle part of the brake drum (6). The feeding assembly (5) includes a movable frame (501), an extension frame (502) is fixedly provided in the middle of the upper surface of the movable frame (501), a circular through groove (503) is provided in the middle of the upper surface of the extension frame (502), an annular seat (504) is provided in the inside of the circular through groove (503), a plurality of grooves (508) arranged in an annular array are provided on the upper surface of the annular seat (504), a guide plate (509) is provided in the inside of the groove (508), a top spring (510) is provided between the lower surface of the guide plate (509) and the bottom of the groove (508), and a pressure sensor is provided in the groove (508) below the top spring (510); The upper surface of the lower mold base (201) is fixedly provided with a plurality of limiting blocks (205) arranged in a ring array, and the top of the outer walls on both sides of the limiting blocks (205) are both set as inclined structures. A ring-shaped abrasive disc (305) is fixedly provided on the lower surface of the upper mold base (301). An annular plate (505) is fixedly provided on the top of the outer side wall of the annular seat (504), and the annular plate (505) is movably connected to the top of the inner side wall of the circular through groove (503) through a bearing. A plurality of limiting grooves (506) adapted to the limiting block (205) are provided on the lower surface of the annular seat (504). The bottom ends of the inner walls on both sides of the limiting groove (506) are both set as inclined structures. A plurality of fixing blocks (507) arranged in a ring array are fixedly provided on the upper surface of the annular seat (504). The fixing blocks (507) correspond to the grinding disc (305). The support assembly (1) includes a top plate (101) and a bottom plate (102). Support columns (103) are fixedly installed at the four corners of the side of the top plate (101) and the bottom plate (102) that are close to each other. A hydraulic rod (104) is fixedly installed in the middle of the upper surface of the bottom plate (102). The top end of the hydraulic rod (104) is movably connected to the middle of the lower surface of the lower mold base (201) through a bearing.

2. The fully automatic multi-mold vertical roll forming machine according to claim 1, characterized in that: The lower mold base (201) is located above the base plate (102). A positioning block (203) with a boss-shaped structure is fixedly provided at the top center of the lower mold body (202). Multiple positioning grooves (204) distributed in a ring array are opened on the top of the outer side wall of the positioning block (203). The inner walls on both sides of the positioning groove (204) are set as inclined structures.

3. The fully automatic multi-mold vertical roll forming machine according to claim 2, characterized in that: The upper mold body (302) has a positioning slot (303) adapted to the positioning block (203) at the bottom center. The positioning slot (303) has multiple positioning blocks (304) adapted to the positioning groove (204) fixedly installed at the top of the inner side wall. The bottom of the outer walls on both sides of the positioning blocks (304) are set as inclined structures. The lower surface of the frosting disc (305) has multiple heat dissipation holes (306). The top plate (101) has a motor base (105) fixedly installed at the center of one side. 5) A drive motor (106) is fixedly installed in the middle of the lower surface. A drive pulley (107) is fixedly installed on the output shaft of the drive motor (106). A transmission shaft (307) is fixedly installed in the middle of the upper surface of the upper mold base (301). The transmission shaft (307) is connected to the middle of the top plate (101) through a bearing. A transmission pulley (308) is fixedly installed at the top of the transmission shaft (307). The transmission pulley (308) is connected to the drive pulley (107) through a transmission belt (309).

4. The fully automatic multi-mold vertical roll forming machine according to claim 1, characterized in that: The support frame (401) is provided with a fixed frame (405) inside. A three-way air guide pipe (406) is provided through the through hole in the middle of the fixed frame (405). An inclined air outlet (407) is provided at both ends and the middle of one side of the air guide pipe (406). The air outlets (407) at both ends of the air guide pipe (406) are inclined towards the first outer mold body (403), and the air outlet (407) in the middle of the air guide pipe (406) is inclined towards the second outer mold body (404). An air inlet pipe (408) is fixedly provided in the middle of the air guide pipe (406), and the air inlet pipe (408) extends to the outside of the support frame (401). A rotary joint (409) is provided at one end of the air inlet pipe (408).

5. The fully automatic multi-mold vertical roll forming machine according to claim 1, characterized in that: A hydraulic push rod (410) is fixedly installed in the middle of the outer side of the support frame (401). A support seat (411) is fixedly installed at the end of the hydraulic push rod (410) away from the support frame (401). Sliding sleeves (412) that are compatible with the support column (103) are fixedly installed at both ends of the support seat (411).

6. The fully automatic multi-mold vertical roll forming machine according to claim 1, characterized in that: The upper surface of the movable frame (501) is provided with a feeding roller (511) and a feeding roller (512) with an inclined structure at both ends. A square groove (513) is provided through the middle of the lower surface of the movable frame (501). Sliding holes (514) adapted to the support column (103) are provided through the four corners of the upper surface of the movable frame (501).

7. The fully automatic multi-mold vertical roll forming machine according to claim 1, characterized in that: A first electromagnetic region and a second electromagnetic region are embedded inside the annular seat (504), wherein half of the adjacent guide plates (509) correspond to the first electromagnetic region and the other half of the adjacent guide plates (509) correspond to the second electromagnetic region.

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