A one-time forming device and method for thin-walled heads that can prevent wrinkles and dissipate heat quickly.

Abstract

This invention discloses a one-time forming device and method for thin-walled end caps that prevents wrinkles and dissipates heat quickly. The device includes a support, a mold assembly, a power assembly, and a pressing assembly. The mold assembly includes a lower mold base and an upper mold head disposed inside the support. The power assembly includes a loading plate disposed inside the support, a sleeve clamped to the loading plate and connected to a connecting shaft, a gear component disposed on the loading plate, a U-shaped toothed plate clamped to the loading plate, and a drive cylinder connected to the U-shaped toothed plate. The pressing assembly includes a pressing ring clamped inside the support and a first electric rod disposed on the outer wall of the support and providing power to the pressing ring. The device of this invention has a reasonable structural design and effectively avoids edge wrinkling during the forming process of thin-walled end caps by utilizing the cooperation of the lower mold base and the upper mold head, making it suitable for widespread use.

Description

Technical Field

[0001] This invention relates to the field of thin-walled head processing technology, specifically to a one-time forming device and method for thin-walled heads that can prevent wrinkles and dissipate heat quickly. Background Technology

[0002] As an indispensable component in atmospheric and pressure vessels, end caps are widely used in pharmaceuticals, food, chemicals, metallurgy, environmental protection, power, boilers and other fields. The integral forming process of large pressure vessel end caps is currently the most common manufacturing process. It utilizes the plasticity of metals, and the blank plate is processed and shaped under the action of molds and forming equipment, thereby producing irreversible plastic deformation.

[0003] The plastic forming processes for end caps include: welding, spinning, explosive forming, and stamping. However, welding is complex, has a long production cycle, requires a large amount of post-welding work, and the accuracy of the produced end caps cannot be guaranteed. Spinning is inefficient and only suitable for small-batch production. Explosive forming, due to its short forming time, allows the heat generated by the plastic deformation of the blank to remain inside the formed end cap, thus mitigating work hardening to some extent. Cold stamping can cause wrinkles at the flow edges of the sheet metal, affecting the quality of the formed end caps. However, for thin-walled, large-sized end cap structures, the sheet metal is thin and difficult to control during stamping. Direct stamping can easily lead to material instability, causing wrinkles, bulges, and other problems. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a one-time forming device and method for thin-walled end caps that can prevent wrinkles and dissipate heat quickly.

[0005] The technical solution of the present invention is: a one-time forming device for thin-walled end caps that can prevent wrinkles and dissipate heat quickly, comprising a support, a mold assembly disposed inside the support, a power assembly disposed inside the upper part of the support and connected to the mold assembly, and a pressing assembly movably disposed on the support.

[0006] The mold assembly includes a lower mold base located at the lower end of the support and an upper mold head movably located at the upper end of the support via a connecting shaft; a molding cavity is located at the center of the lower mold base, and several cooling grooves and drainage grooves are provided through the lower mold base; a coolant reservoir communicating with the cooling grooves is located outside the support.

[0007] The power assembly includes a loading plate fixedly mounted inside the upper part of the bracket, a sleeve slidably engaged with the loading plate and sleeved outside the connecting shaft, a gear component rotatably engaged with the loading plate, a U-shaped toothed plate slidably engaged with the upper surface of the loading plate, and a drive cylinder fixedly mounted on the loading plate and connected to the U-shaped toothed plate; the connecting shaft is rotatably engaged with the sleeve, and the outer wall of the sleeve has vertically arranged tooth grooves; the gear component includes two connecting gears rotatably engaged with the upper surface of the loading plate and a drive gear meshing with the tooth grooves, a linkage shaft is provided between the two connecting gears, and the drive gear is fixedly sleeved on the linkage shaft; the U-shaped toothed plate meshes with each of the two connecting gears respectively;

[0008] The pressing assembly includes a pressing ring that is slidably engaged inside the bracket and located on the upper end face of the lower mold base, and a first electric rod that is disposed on the outer wall of the bracket and provides power to the pressing ring. A first push plate that penetrates the bracket and is slidably engaged with the bracket is disposed on the side wall of the pressing ring, and the first electric rod is connected to the first push plate.

[0009] Furthermore, it also includes a waste edge cutting assembly disposed inside the support; the lower mold base is hollow inside, and an annular cutting groove is provided on the upper end face of the lower mold base and located outside the forming cavity; the cutting assembly includes a mounting ring slidably engaged inside the lower mold base, a rotating ring rotatably engaged inside the mounting ring, a cutting machine disposed on the upper end face of the rotating ring and corresponding to the upper and lower positions of the annular cutting groove, a second electric rod disposed on the outer wall of the support and providing power to the mounting ring, and a first rotary motor disposed on the mounting ring and providing power to the rotating ring; a second push plate is disposed on the side wall of the mounting ring, penetrating the support and slidably engaged with the support, and the second electric rod is connected to the second push plate; a gear ring is sleeved on the outer wall of the rotating ring, and the output shaft of the first rotary motor penetrates the mounting ring and is provided on the output shaft with a first rotary gear meshing with the gear ring;

[0010] Instructions: When in use, start the second electric lever to push the mounting ring and rotating ring upward along the inner wall of the bracket, and finally make the cutting machine extend out of the cutting groove; then turn on the cutting machine and the first rotary motor, and use the first rotary motor to drive the rotating ring to rotate on the mounting ring. Use the cutting machine to cut and trim the waste edge of the thin-walled head, which helps to improve the processing efficiency of the thin-walled head.

[0011] Furthermore, the cutting machine is equipped with a grinding wheel;

[0012] Note: After the waste edges of the thin-walled head are cut off, use a grinding wheel to grind the burrs on the edge of the thin-walled head to avoid cutting workers during use and improve the performance of the thin-walled head.

[0013] Furthermore, a follower plate is fixedly sleeved on the connecting shaft, which slides and engages with the inner wall of the bracket and is located below the loading plate. A second rotary motor is installed on the follower plate. A large gear is fixedly sleeved on the connecting shaft and located below the follower plate. The output shaft of the second rotary motor passes through the follower plate and is equipped with a second rotary gear that meshes with the large gear. An adjustment seat is provided at the lower end of the connecting shaft. A micro motor is installed on the adjustment seat, and an adjustment screw is installed on the output shaft of the micro motor. The upper die head is threadedly connected to the adjustment screw through a threaded seat.

[0014] Explanation: During the process of the upper die head extruding the end cap blank plate, the second rotary motor drives the second rotary gear to rotate. The meshing action of the second rotary gear and the large gear causes the connecting shaft and the upper die head to rotate simultaneously. At the same time, the micro motor drives the adjusting screw to rotate, causing the upper die head to shift a certain distance on the adjusting seat, thus performing a spinning process on the end cap blank plate. This improves the uniformity of the extrusion force on the end cap blank plate, thereby improving the consistency of the thickness of the thin-walled end cap.

[0015] Furthermore, guide wheels that abut against the adjusting seat are provided on the upper end face of the upper die head and on both sides of the threaded seat;

[0016] Note: By setting guide wheels, the stability and reliability of the connection between the upper die head and the adjustment seat can be improved.

[0017] Furthermore, a guide sleeve is provided at the connection between the loading plate and the sleeve;

[0018] Note: The guide sleeve improves the stability of the sleeve's movement on the loading plate, prevents the sleeve from bending and deforming due to excessive force, and improves the reliability and stability of the device.

[0019] Furthermore, an auxiliary pressure strip is provided on the bottom surface of the pressure ring; a slot is provided on the upper end surface of the lower mold base at a position corresponding to the auxiliary pressure strip.

[0020] Note: When the pressure ring contacts the end cap blank plate, the auxiliary pressure strip and the slot are used to fix the end cap blank plate in a secondary manner, so as to avoid displacement of the end cap blank plate during the extrusion process and thus affect the molding efficiency.

[0021] Furthermore, several positioning pins are evenly distributed on the upper end face of the lower mold base and below the pressure ring, and a compression spring that abuts against the positioning pins is provided inside the lower mold base;

[0022] Explanation: Using positioning columns for primary positioning of the end cap blank plate reduces the pulling force required for manual adjustment of the end cap blank plate position and improves the production efficiency of the equipment.

[0023] The present invention also provides a one-time forming method for a thin-walled end cap that is wrinkle-resistant and has fast heat dissipation, comprising the following steps:

[0024] S1. Connect the drive cylinder and the first electric lever to the external power source respectively, and then inject coolant into the coolant reservoir.

[0025] S2. Place the end cap blank plate on the lower mold base and align the end cap blank plate with the molding cavity in the upper and lower positions; then start the first electric rod and use the first electric rod to push the pressure ring to move downward along the bracket to press and fix the edge of the end cap blank plate.

[0026] S3. Start the drive cylinder and use the drive cylinder to push the U-shaped toothed plate to move on the loading plate. During the movement of the U-shaped toothed plate, the connecting gear and the drive gear will rotate at the same time. Since the drive gear is meshed with the tooth groove on the sleeve, the sleeve will drive the connecting shaft and the upper die head to move downward inside the bracket. The upper die head will be used to extrude and form the end plate blank to obtain a thin-walled end.

[0027] S4. After the thin-walled head is formed, the coolant inside the coolant tank is injected into the forming cavity through the cooling tank to cool the thin-walled head.

[0028] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects:

[0029] First, the device structure of the present invention is reasonably designed. By utilizing the cooperation between the lower mold base and the upper mold head, and with the assistance of the pressure ring, wrinkles are avoided due to the flow of the edge sheet during the forming process of the thin-walled head, thus improving the forming effect and utilization rate of the thin-walled head.

[0030] Secondly, the device of the present invention rapidly cools the thin-walled head after it is formed by using a coolant, which not only shortens the time for natural cooling of the head, but also reduces the metal deformation generated during the natural cooling process and improves the processing accuracy of the head.

[0031] Third, the device of the present invention can cut, grind and trim the waste edges at the edge of the thin-walled head after the thin-walled head is formed, which not only improves the processing efficiency of the thin-walled head, but also improves the later use effect of the thin-walled head. Attached Figure Description

[0032] Figure 1 This is a longitudinal sectional view of the device of the present invention;

[0033] Figure 2 This is a front view of the device of the present invention;

[0034] Figure 3 This is a schematic diagram of the connection between the lower mold base and the bracket of the present invention;

[0035] Figure 4 This is a schematic diagram showing the connection between the upper die head and the adjusting seat of the present invention;

[0036] Figure 5 This is a diagram showing the distribution of the guide wheels on the upper die head according to the present invention;

[0037] Figure 6 This is a schematic diagram of the connection between the loading plate and the bracket of the present invention;

[0038] Figure 7 This is the present invention. Figure 1 A magnified view of a portion of point A in the middle;

[0039] Figure 8 This is a schematic diagram of the connection between the rotating ring and the mounting ring of the present invention;

[0040] Among them, 1-bracket, 2-mold assembly, 20-lower mold base, 200-forming cavity, 201-cooling tank, 202-annular cutting groove, 203-slot, 21-upper mold head, 210-connecting shaft, 211-follower plate, 212-large gear, 213-threaded seat, 214-guide wheel, 22-coolant reservoir, 23-second rotary motor, 230-second rotary gear, 24-adjusting seat, 25-micro motor, 250-adjusting screw, 26-positioning column, 260-compression spring, 3-power assembly, 30-loading plate, 300-guide 31-Sleeve, 310-Gear groove, 32-Gear component, 320-Connecting gear, 321-Drive gear, 322-Linkage shaft, 33-U-shaped toothed plate, 34-Drive cylinder, 4-Edge pressing assembly, 40-Edge pressing ring, 400-First push plate, 401-Auxiliary pressing strip, 41-First electric rod, 5-Waste edge cutting assembly, 50-Mounting ring, 500-Second push plate, 51-Rotating ring, 510-Gear ring, 52-Cut machine, 520-Grinding wheel, 53-Second electric rod, 54-First rotary motor, 540-First rotary gear. Detailed Implementation

[0041] Example 1

[0042] like Figure 1 The thin-walled end cap one-time forming device shown includes a support 1, a mold assembly 2 disposed inside the support 1, a power assembly 3 disposed inside the upper part of the support 1 and connected to the mold assembly 2, and a pressing assembly 4 movably disposed on the support 1.

[0043] like Figure 1 , 2 As shown, the mold assembly 2 includes a lower mold base 20 disposed at the lower end of the support 1 and an upper mold head 21 movably disposed at the upper end of the support 1 via a connecting shaft 210; a molding cavity 200 is disposed at the center of the lower mold base 20, and several cooling grooves 201 and a drain groove are disposed through the lower mold base 20; a coolant reservoir 22 communicating with the cooling grooves 201 is disposed outside the support 1;

[0044] like Figure 1 , 2 As shown in Figures 3 and 6, the power assembly 3 includes a loading plate 30 fixedly mounted inside the upper end of the bracket 1, a sleeve 31 slidably engaged with the loading plate 30 and sleeved outside the connecting shaft 210, a gear component 32 rotatably engaged with the loading plate 30, a U-shaped toothed plate 33 slidably engaged with the upper end face of the loading plate 30, and a drive cylinder 34 fixedly mounted on the loading plate 30 and connected to the U-shaped toothed plate 33; the connecting shaft 210 is rotatably engaged with the sleeve 31, and the outer wall of the sleeve 31 is vertically provided with toothed grooves 310; the gear component 32 includes two connecting gears 320 rotatably engaged with the upper end face of the loading plate 30 and a drive gear 321 meshing with the toothed grooves 310, a linkage shaft 322 is provided between the two connecting gears 320, and the drive gear 321 is fixedly sleeved on the linkage shaft 322; the U-shaped toothed plate 33 meshes with the two connecting gears 320 respectively;

[0045] like Figure 1 As shown, the pressing assembly 4 includes a pressing ring 40 that is slidably engaged inside the bracket 1 and located on the upper end face of the lower mold base 20, and a first electric rod 41 that is disposed on the outer wall of the bracket 1 and provides power to the pressing ring 40. A first push plate 400 that penetrates the bracket 1 and is slidably engaged with the bracket is disposed on the side wall of the pressing ring 40. The first electric rod 41 is connected to the first push plate 400.

[0046] Example 2

[0047] This embodiment describes a method for one-time forming of thin-walled heads using the apparatus of Embodiment 1, including the following steps:

[0048] S1. Connect the drive cylinder 34 and the first electric lever 41 to the external power source respectively, and then inject coolant into the coolant reservoir 22.

[0049] S2. Place the end cap blank plate on the lower mold base 20 and make the end cap blank plate correspond to the upper and lower positions of the forming cavity 200; then start the first electric rod 41 and use the first electric rod 41 to push the pressure ring 40 to move downward along the bracket 1 to press and fix the edge of the end cap blank plate.

[0050] S3. Start the drive cylinder 34. Use the drive cylinder 34 to push the U-shaped toothed plate 33 to move on the loading plate 30. During the movement of the U-shaped toothed plate 33, the connecting gear 320 and the drive gear 321 will rotate at the same time. Since the drive gear 321 is meshed with the tooth groove 310 on the sleeve 31, the sleeve 31 will drive the connecting shaft 210 and the upper die head 21 to move downward inside the bracket 1. The upper die head 21 will be used to extrude and form the end plate blank to obtain a thin-walled end.

[0051] S4. After the thin-walled head is formed, the coolant inside the coolant tank 22 is injected into the forming cavity 200 through the cooling tank 201 to cool the thin-walled head.

[0052] Example 3

[0053] like Figure 1 The thin-walled end cap one-time forming device shown includes a support 1, a mold assembly 2 disposed inside the support 1, a power assembly 3 disposed inside the upper part of the support 1 and connected to the mold assembly 2, a pressing assembly 4 movably disposed on the support 1, and a waste edge cutting assembly 5 disposed inside the support 1.

[0054] like Figure 1 , 2 As shown in Figure 3, the mold assembly 2 includes a lower mold base 20 disposed at the lower end of the support 1 and an upper mold head 21 movably disposed at the upper end of the support 1 via a connecting shaft 210; the lower mold base 20 is hollow inside, and a molding cavity 200 is disposed at the center of the lower mold base 20; several cooling grooves 201 and a drain groove are disposed through the lower mold base 20; an annular cutting groove 202 is disposed on the upper end surface of the lower mold base 20 and located outside the molding cavity 200; a coolant reservoir 22 communicating with the cooling grooves 201 is disposed outside the support 1;

[0055] like Figure 1 , 2 As shown in Figures 3 and 6, the power assembly 3 includes a loading plate 30 fixedly mounted inside the upper end of the bracket 1, a sleeve 31 slidably engaged with the loading plate 30 and sleeved outside the connecting shaft 210, a gear component 32 rotatably engaged with the loading plate 30, a U-shaped toothed plate 33 slidably engaged with the upper end face of the loading plate 30, and a drive cylinder 34 fixedly mounted on the loading plate 30 and connected to the U-shaped toothed plate 33; the connecting shaft 210 is rotatably engaged with the sleeve 31, and the outer wall of the sleeve 31 is vertically provided with toothed grooves 310; the gear component 32 includes two connecting gears 320 rotatably engaged with the upper end face of the loading plate 30 and a drive gear 321 meshing with the toothed grooves 310, a linkage shaft 322 is provided between the two connecting gears 320, and the drive gear 321 is fixedly sleeved on the linkage shaft 322; the U-shaped toothed plate 33 meshes with the two connecting gears 320 respectively;

[0056] like Figure 1 As shown, the pressing assembly 4 includes a pressing ring 40 that is slidably engaged inside the bracket 1 and located on the upper end face of the lower mold base 20, and a first electric rod 41 that is disposed on the outer wall of the bracket 1 and provides power to the pressing ring 40. A first push plate 400 that penetrates the bracket 1 and is slidably engaged with the bracket is disposed on the side wall of the pressing ring 40. The first electric rod 41 is connected to the first push plate 400.

[0057] like Figure 1 ,8 As shown, the cutting assembly 5 includes a mounting ring 50 slidably engaged inside the lower mold base 20, a rotating ring 51 rotatably engaged inside the mounting ring 50, a cutting machine 52 disposed on the upper end face of the rotating ring 51 and corresponding to the vertical position of the annular cutting groove 202, a second electric rod 53 disposed on the outer wall of the bracket 1 and providing power to the mounting ring 50, and a first rotary motor 54 disposed on the mounting ring 50 and providing power to the rotating ring 51; a second push plate 500 is disposed on the side wall of the mounting ring 50, penetrating the bracket 1 and slidably engaged with the bracket, and the second electric rod 53 is connected to the second push plate 500; a gear ring 510 is sleeved on the outer wall of the rotating ring 51, a grinding wheel 520 is disposed on the cutting machine 52, and the output shaft of the first rotary motor 54 penetrates the mounting ring 50 and a first rotary gear 540 is disposed on the output shaft and meshing with the gear ring 510.

[0058] Example 4

[0059] This embodiment describes a method for one-time forming of thin-walled heads using the apparatus of Embodiment 3, including the following steps:

[0060] S1. Connect the drive cylinder 34, the first electric rod 41, the cutting machine 52 and the second electric rod 53 to the external power supply respectively, and then inject coolant into the coolant tank 22.

[0061] S2. Place the end cap blank plate on the lower mold base 20 and make the end cap blank plate correspond to the upper and lower positions of the forming cavity 200; then start the first electric rod 41 and use the first electric rod 41 to push the pressure ring 40 to move downward along the bracket 1 to press and fix the edge of the end cap blank plate.

[0062] S3. Start the drive cylinder 34 to push the U-shaped toothed plate 33 to move on the loading plate 30. During the movement of the U-shaped toothed plate 33, the connecting gear 320 and the drive gear 321 rotate simultaneously. Since the drive gear 321 meshes with the tooth groove 310 on the sleeve 31, the sleeve 31 drives the connecting shaft 210 and the upper die head 21 to move downward inside the bracket 1. The upper die head 21 is used to extrude and form the end cap blank plate to obtain a thin-walled end cap. Start the second electric rod 53 to push the mounting ring 50 and the rotating ring 51 to move upward along the inner wall of the bracket 1, and finally make the cutting machine 52 extend out of the cutting groove 202. Then turn on the cutting machine 52 and the first rotary motor 54. The first rotary motor 54 drives the rotating ring 51 to rotate on the mounting ring 50. The cutting machine 52 is used to cut and trim the waste edge of the thin-walled end cap. After the cutting is completed, the grinding wheel 520 is used to grind the burrs on the edge of the thin-walled end cap.

[0063] S4. After the thin-walled head is formed, the coolant inside the coolant tank 22 is injected into the forming cavity 200 through the cooling tank 201 to cool the thin-walled head.

[0064] Example 5

[0065] like Figure 1 The thin-walled end cap one-time forming device shown includes a support 1, a mold assembly 2 disposed inside the support 1, a power assembly 3 disposed inside the upper part of the support 1 and connected to the mold assembly 2, a pressing assembly 4 movably disposed on the support 1, and a waste edge cutting assembly 5 disposed inside the support 1.

[0066] like Figure 1 , 2 As shown in Figures 3, 4, 5, and 7, the mold assembly 2 includes a lower mold base 20 disposed at the lower end of the support 1 and an upper mold head 21 movably disposed at the upper end of the support 1 via a connecting shaft 210. The lower mold base 20 is hollow inside, and a molding cavity 200 is disposed at the center of the lower mold base 20. Several cooling grooves 201 and a drain groove are disposed through the lower mold base 20. An annular cutting groove 202 is disposed on the upper end face of the lower mold base 20 and outside the molding cavity 200. A coolant reservoir 22 communicating with the cooling grooves 201 is disposed outside the support 1. A follower plate 211 is fixedly sleeved on the connecting shaft 210 and slidably engaged with the inner wall of the support 1 and located below the loading plate 30. A second rotary motor 23 is disposed on the follower plate 211. A follower plate 211 is fixedly sleeved on the connecting shaft 210 and located below the loading plate 30. A large gear 212 is located below the follower plate 211; the output shaft of the second rotary motor 23 passes through the follower plate 211 and is equipped with a second rotary gear 230 that meshes with the large gear 212; an adjustment seat 24 is provided at the lower end of the connecting shaft 210, a micro motor 25 is provided on the adjustment seat 24, and an adjustment screw 250 is provided on the output shaft of the micro motor 25; the upper die head 21 is threadedly connected to the adjustment screw 250 through a threaded seat 213; guide wheels 214 that abut against the adjustment seat 24 are provided on both sides of the upper end face of the upper die head 21 and located on both sides of the threaded seat 213; six positioning pins 26 are equidistantly distributed on the upper end face of the lower die seat 20 and located below the pressure ring 40, and compression springs 260 that abut against the positioning pins 26 are provided inside the lower die seat 20;

[0067] like Figure 1 , 2As shown in Figures 3 and 6, the power assembly 3 includes a loading plate 30 fixedly mounted inside the upper end of the bracket 1, a sleeve 31 slidably engaged with the loading plate 30 and sleeved outside the connecting shaft 210, a gear component 32 rotatably engaged with the loading plate 30, a U-shaped toothed plate 33 slidably engaged with the upper end face of the loading plate 30, and a drive cylinder 34 fixedly mounted on the loading plate 30 and connected to the U-shaped toothed plate 33; the connecting shaft 210 is rotatably engaged with the sleeve 31, and the outer wall of the sleeve 31 is vertically provided with toothed grooves 310; the gear component 32 includes two connecting gears 320 rotatably engaged with the upper end face of the loading plate 30 and a drive gear 321 meshing with the toothed grooves 310, a linkage shaft 322 is provided between the two connecting gears 320, and the drive gear 321 is fixedly sleeved on the linkage shaft 322; the U-shaped toothed plate 33 meshes with the two connecting gears 320 respectively;

[0068] like Figure 1 As shown, the pressing assembly 4 includes a pressing ring 40 that is slidably engaged inside the bracket 1 and located on the upper end face of the lower mold base 20, and a first electric rod 41 that is disposed on the outer wall of the bracket 1 and provides power to the pressing ring 40. A first push plate 400 that penetrates the bracket 1 and is slidably engaged with the bracket is disposed on the side wall of the pressing ring 40. The first electric rod 41 is connected to the first push plate 400.

[0069] like Figure 1 , 8 As shown, the cutting assembly 5 includes a mounting ring 50 slidably engaged inside the lower mold base 20, a rotating ring 51 rotatably engaged inside the mounting ring 50, a cutting machine 52 disposed on the upper end face of the rotating ring 51 and corresponding to the vertical position of the annular cutting groove 202, a second electric rod 53 disposed on the outer wall of the bracket 1 and providing power to the mounting ring 50, and a first rotary motor 54 disposed on the mounting ring 50 and providing power to the rotating ring 51; a second push plate 500 is disposed on the side wall of the mounting ring 50, penetrating the bracket 1 and slidably engaged with the bracket, and the second electric rod 53 is connected to the second push plate 500; a gear ring 510 is sleeved on the outer wall of the rotating ring 51, a grinding wheel 520 is disposed on the cutting machine 52, and the output shaft of the first rotary motor 54 penetrates the mounting ring 50 and a first rotary gear 540 is disposed on the output shaft and meshing with the gear ring 510.

[0070] Example 6

[0071] This embodiment describes a method for one-time forming of thin-walled heads using the apparatus of Embodiment 5, including the following steps:

[0072] S1. Connect the second rotary motor 23, micro motor 25, drive cylinder 34, first electric rod 41, cutting machine 52 and second electric rod 53 to an external power source respectively, and then inject coolant into the coolant tank 22.

[0073] S2. Place the end plate blank between the positioning pins 26 on the lower mold base 20 and make the end plate blank correspond to the upper and lower positions of the forming cavity 200; then start the first electric rod 41 and use the first electric rod 41 to push the pressure ring 40 to move downward along the bracket 1 to press and fix the edge of the end plate blank.

[0074] S3. Start the drive cylinder 34, which pushes the U-shaped toothed plate 33 to move on the loading plate 30. During the movement of the U-shaped toothed plate 33, the connecting gear 320 and the drive gear 321 rotate simultaneously. Since the drive gear 321 meshes with the toothed groove 310 on the sleeve 31, the sleeve 31 drives the connecting shaft 210 and the upper die head 21 to move downward inside the bracket 1. The upper die head 21 is used to extrude and form the end cap blank plate to obtain a thin-walled end cap. During the extrusion of the end cap blank plate by the upper die head 21, the second rotary motor 23 drives the second rotary gear 230 to rotate. The meshing action of the second rotary gear 230 with the large gear 212 causes the connecting shaft 210 to... The upper die head 21 rotates simultaneously; at the same time, the micro motor 25 drives the adjusting screw 250 to rotate, so that the upper die head 21 is offset by a certain distance on the adjusting seat 24, and the end cap blank plate is spun; the second electric rod 53 is started, and the second electric rod 53 pushes the mounting ring 50 and the rotating ring 51 to move upward along the inner wall of the bracket 1, and finally makes the cutting machine 52 extend out of the cutting groove 202; then the cutting machine 52 and the first rotating motor 54 are turned on, and the first rotating motor 54 drives the rotating ring 51 to rotate on the mounting ring 50. The cutting machine 52 cuts and trims the waste edge of the thin-walled end cap. After the cutting is completed, the grinding wheel 520 grinds the burrs on the edge of the thin-walled end cap.

[0075] S4. After the thin-walled head is formed, the coolant inside the coolant tank 22 is injected into the forming cavity 200 through the cooling tank 201 to cool the thin-walled head.

[0076] Example 7

[0077] like Figure 1 The thin-walled end cap one-time forming device shown includes a support 1, a mold assembly 2 disposed inside the support 1, a power assembly 3 disposed inside the upper part of the support 1 and connected to the mold assembly 2, a pressing assembly 4 movably disposed on the support 1, and a waste edge cutting assembly 5 disposed inside the support 1.

[0078] like Figure 1 , 2As shown in Figures 3, 4, 5, and 7, the mold assembly 2 includes a lower mold base 20 disposed at the lower end of the support 1 and an upper mold head 21 movably disposed at the upper end of the support 1 via a connecting shaft 210. The lower mold base 20 is hollow inside, and a molding cavity 200 is disposed at the center of the lower mold base 20. Several cooling grooves 201 and a drain groove are disposed through the lower mold base 20. An annular cutting groove 202 is disposed on the upper end face of the lower mold base 20 and outside the molding cavity 200. A coolant reservoir 22 communicating with the cooling grooves 201 is disposed outside the support 1. A follower plate 211 is fixedly sleeved on the connecting shaft 210 and slidably engaged with the inner wall of the support 1 and located below the loading plate 30. A second rotary motor 23 is disposed on the follower plate 211. A follower plate 211 is fixedly sleeved on the connecting shaft 210 and located below the loading plate 30. A large gear 212 is located below the follower plate 211; the output shaft of the second rotary motor 23 passes through the follower plate 211 and is equipped with a second rotary gear 230 that meshes with the large gear 212; an adjustment seat 24 is provided at the lower end of the connecting shaft 210, a micro motor 25 is provided on the adjustment seat 24, and an adjustment screw 250 is provided on the output shaft of the micro motor 25; the upper die head 21 is threadedly connected to the adjustment screw 250 through a threaded seat 213; guide wheels 214 that abut against the adjustment seat 24 are provided on both sides of the upper end face of the upper die head 21 and located on both sides of the threaded seat 213; six positioning pins 26 are equidistantly distributed on the upper end face of the lower die seat 20 and located below the pressure ring 40, and compression springs 260 that abut against the positioning pins 26 are provided inside the lower die seat 20;

[0079] like Figure 1 , 2 As shown in Figures 3 and 6, the power assembly 3 includes a loading plate 30 fixedly mounted inside the upper end of the bracket 1, a sleeve 31 slidably engaged with the loading plate 30 and sleeved outside the connecting shaft 210, a gear component 32 rotatably engaged with the loading plate 30, a U-shaped toothed plate 33 slidably engaged with the upper end face of the loading plate 30, and a drive cylinder 34 fixedly mounted on the loading plate 30 and connected to the U-shaped toothed plate 33; a guide sleeve 300 is provided at the connection between the loading plate 30 and the sleeve 31; the connecting shaft 210 is rotatably engaged with the sleeve 31, and a toothed groove 310 is vertically provided on the outer wall of the sleeve 31; the gear component 32 includes two connecting gears 320 rotatably engaged with the upper end face of the loading plate 30 and a drive gear 321 meshing with the toothed groove 310, a linkage shaft 322 is provided between the two connecting gears 320, and the drive gear 321 is fixedly sleeved on the linkage shaft 322; the U-shaped toothed plate 33 meshes with the two connecting gears 320 respectively.

[0080] like Figure 1 , 7As shown, the pressing assembly 4 includes a pressing ring 40 that is slidably engaged inside the bracket 1 and located on the upper end face of the lower mold base 20, and a first electric rod 41 that is disposed on the outer wall of the bracket 1 and provides power to the pressing ring 40. A first push plate 400 that penetrates the bracket 1 and is slidably engaged with the bracket is disposed on the side wall of the pressing ring 40. The first electric rod 41 is connected to the first push plate 400. An auxiliary pressing strip 401 is disposed on the bottom surface of the pressing ring 40. A slot 203 is disposed on the upper end face of the lower mold base 20 at a position corresponding to the position of the auxiliary pressing strip 401.

[0081] like Figure 1 , 8 As shown, the cutting assembly 5 includes a mounting ring 50 slidably engaged inside the lower mold base 20, a rotating ring 51 rotatably engaged inside the mounting ring 50, a cutting machine 52 disposed on the upper end face of the rotating ring 51 and corresponding to the vertical position of the annular cutting groove 202, a second electric rod 53 disposed on the outer wall of the bracket 1 and providing power to the mounting ring 50, and a first rotary motor 54 disposed on the mounting ring 50 and providing power to the rotating ring 51; a second push plate 500 is disposed on the side wall of the mounting ring 50, penetrating the bracket 1 and slidably engaged with the bracket, and the second electric rod 53 is connected to the second push plate 500; a gear ring 510 is sleeved on the outer wall of the rotating ring 51, a grinding wheel 520 is disposed on the cutting machine 52, and the output shaft of the first rotary motor 54 penetrates the mounting ring 50 and a first rotary gear 540 is disposed on the output shaft and meshing with the gear ring 510.

[0082] Example 8

[0083] This embodiment describes a method for one-time forming of thin-walled heads using the apparatus of Embodiment 7, including the following steps:

[0084] S1. Connect the second rotary motor 23, micro motor 25, drive cylinder 34, first electric rod 41, cutting machine 52 and second electric rod 53 to an external power source respectively, and then inject coolant into the coolant tank 22.

[0085] S2. Place the end cap blank plate between the positioning posts 26 on the lower mold base 20, and align the end cap blank plate with the molding cavity 200 vertically. Then, activate the first electric rod 41 to push the pressure ring 40 downward along the bracket 1, pressing and fixing the edge of the end cap blank plate. The secondary fixing of the end cap blank plate is achieved by the cooperation of the auxiliary pressure strip 401 and the slot 203.

[0086] S3. Start the drive cylinder 34, which pushes the U-shaped toothed plate 33 to move on the loading plate 30. During the movement of the U-shaped toothed plate 33, the connecting gear 320 and the drive gear 321 rotate simultaneously. Since the drive gear 321 meshes with the toothed groove 310 on the sleeve 31, the sleeve 31 drives the connecting shaft 210 and the upper die head 21 to move downward inside the bracket 1. The upper die head 21 is used to extrude and form the end cap blank plate to obtain a thin-walled end cap. During the extrusion of the end cap blank plate by the upper die head 21, the second rotary motor 23 drives the second rotary gear 230 to rotate. The meshing action of the second rotary gear 230 with the large gear 212 causes the connecting shaft 210 to... The upper die head 21 rotates simultaneously; at the same time, the micro motor 25 drives the adjusting screw 250 to rotate, so that the upper die head 21 is offset by a certain distance on the adjusting seat 24, and the end cap blank plate is spun; the second electric rod 53 is started, and the second electric rod 53 pushes the mounting ring 50 and the rotating ring 51 to move upward along the inner wall of the bracket 1, and finally makes the cutting machine 52 extend out of the cutting groove 202; then the cutting machine 52 and the first rotating motor 54 are turned on, and the first rotating motor 54 drives the rotating ring 51 to rotate on the mounting ring 50. The cutting machine 52 cuts and trims the waste edge of the thin-walled end cap. After the cutting is completed, the grinding wheel 520 grinds the burrs on the edge of the thin-walled end cap.

[0087] S4. After the thin-walled head is formed, the coolant inside the coolant tank 22 is injected into the forming cavity 200 through the cooling tank 201 to cool the thin-walled head.

[0088] It should be noted that the second rotary motor 23, micro motor 25, drive cylinder 34, first electric rod 41, cutting machine 52 and second electric rod 53 used in this invention all adopt existing technology and are not specifically limited here. Appropriate products can be selected according to actual needs.

Claims

1. A one-time forming device for thin-walled end caps that prevents wrinkles and dissipates heat quickly, characterized in that, It includes a support (1), a mold assembly (2) disposed inside the support (1), a power assembly (3) disposed inside the upper part of the support (1) and connected to the mold assembly (2), and a pressing assembly (4) movably disposed on the support (1). The mold assembly (2) includes a lower mold base (20) disposed at the lower end of the support (1) and an upper mold head (21) movably disposed at the upper end of the support (1) via a connecting shaft (210); a molding cavity (200) is provided at the center of the lower mold base (20), and several cooling grooves (201) and drainage grooves are provided through the lower mold base (20); a coolant reservoir (22) communicating with the cooling grooves (201) is provided outside the support (1). The power assembly (3) includes a loading plate (30) fixedly mounted inside the upper end of the bracket (1), a sleeve (31) slidably engaged on the loading plate (30) and sleeved outside the connecting shaft (210), a gear component (32) rotatably engaged on the loading plate (30), a U-shaped toothed plate (33) slidably engaged on the upper end face of the loading plate (30), and a drive cylinder (34) fixedly mounted on the loading plate (30) and connected to the U-shaped toothed plate (33); the connecting shaft (210) is rotatably engaged with the sleeve (31). The outer wall of the sleeve (31) is vertically provided with toothed grooves (310); the gear component (32) includes two connecting gears (320) that are rotatably engaged with the upper end face of the loading plate (30) and a drive gear (321) that meshes with the toothed grooves (310); a linkage shaft (322) is provided between the two connecting gears (320); the drive gear (321) is fixedly sleeved on the linkage shaft (322); the U-shaped toothed plate (33) meshes with the two connecting gears (320) one by one; The pressing assembly (4) includes a pressing ring (40) that is slidably engaged inside the bracket (1) and located on the upper end face of the lower mold base (20), and a first electric rod (41) that is disposed on the outer wall of the bracket (1) and provides power to the pressing ring (40). A first push plate (400) that penetrates the bracket (1) and is slidably engaged with the bracket is disposed on the side wall of the pressing ring (40). The first electric rod (41) is connected to the first push plate (400). It also includes a waste edge cutting assembly (5) disposed inside the bracket (1); the lower mold base (20) is hollow inside, and an annular cutting groove (202) is provided on the upper end surface of the lower mold base (20) and outside the forming cavity (200); the cutting assembly (5) includes a mounting ring (50) slidably engaged inside the lower mold base (20), a rotating ring (51) rotatably engaged inside the mounting ring (50), a cutting machine (52) disposed on the upper end surface of the rotating ring (51) and corresponding to the upper and lower positions of the annular cutting groove (202), and a second electric rod (53) disposed on the outer wall of the bracket (1) and providing power to the mounting ring (50). The device includes a first rotary motor (54) mounted on a mounting ring (50) and providing power to the rotating ring (51); a second push plate (500) is provided on the side wall of the mounting ring (50) through the bracket (1) and slidably engaged with the bracket; the second electric rod (53) is connected to the second push plate (500); a gear ring (510) is sleeved on the outer wall of the rotating ring (51); the output shaft of the first rotary motor (54) passes through the mounting ring (50) and a first rotary gear (540) is provided on the output shaft that meshes with the gear ring (510); a grinding wheel (520) is provided on the cutting machine (52). A follower plate (211) is fixedly sleeved on the connecting shaft (210) and is slidably engaged with the inner wall of the bracket (1) and located below the loading plate (30). A second rotary motor (23) is provided on the follower plate (211). A large gear (212) located below the follower plate (211) is fixedly sleeved on the connecting shaft (210). The output shaft of the second rotary motor (23) passes through the follower plate (211) and a second rotary gear (230) is provided on the output shaft and meshes with the large gear (212). An adjusting seat (24) is provided at the lower end of the connecting shaft (210). A micro motor (25) is provided on the adjusting seat (24). An adjusting screw (250) is provided on the output shaft of the micro motor (25). The upper die head (21) is threadedly connected to the adjusting screw (250) through a threaded seat (213).

2. The one-time forming device for thin-walled end caps that is wrinkle-resistant and has fast heat dissipation according to claim 1, characterized in that, The upper end face of the upper die head (21) and both sides of the threaded seat (213) are provided with guide wheels (214) that abut against the adjusting seat (24).

3. The one-time forming device for thin-walled end caps that is wrinkle-resistant and has fast heat dissipation according to claim 1, characterized in that, A guide sleeve (300) is provided at the connection between the loading plate (30) and the sleeve (31).

4. The one-time forming device for thin-walled end caps that is wrinkle-resistant and has fast heat dissipation according to claim 1, characterized in that, An auxiliary pressure strip (401) is provided on the bottom surface of the pressure ring (40); a slot (203) is provided on the upper surface of the lower mold base (20) at a position corresponding to the auxiliary pressure strip (401).

5. The one-time forming device for thin-walled end caps that is wrinkle-resistant and has fast heat dissipation according to claim 1, characterized in that, Several positioning posts (26) are equidistantly distributed on the upper end face of the lower mold base (20) and below the pressure ring (40). A compression spring (260) is provided inside the lower mold base (20) to abut against the positioning posts (26).

6. A method for one-time forming of thin-walled heads using the apparatus according to any one of claims 1-5, characterized in that, Includes the following steps: S1. Connect the drive cylinder (34) and the first electric lever (41) to the external power source respectively, and then inject coolant into the coolant reservoir (22); S2. Place the end cap blank plate on the lower mold base (20) and make the end cap blank plate correspond to the upper and lower positions of the molding cavity (200); then start the first electric rod (41) and use the first electric rod (41) to push the pressure ring (40) to move downward along the bracket (1) to press and fix the edge of the end cap blank plate. S3. Start the drive cylinder (34). Use the drive cylinder (34) to push the U-shaped toothed plate (33) to move on the loading plate (30). During the movement of the U-shaped toothed plate (33), the connecting gear (320) and the drive gear (321) will rotate simultaneously. Since the drive gear (321) meshes with the tooth groove (310) on the sleeve (31), the sleeve (31) will drive the connecting shaft (210) and the upper die head (21) to move downward inside the bracket (1). Use the upper die head (21) to extrude the end blank plate to form a thin-walled end. S4. After the thin-walled head is formed, the coolant inside the coolant tank (22) is injected into the forming cavity (200) through the cooling tank (201) to cool the thin-walled head.

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