Pot body stretching and trimming compound die

Abstract

The utility model discloses a pot body stretching and trimming compound die which comprises a base, a support arranged on the base, a pressing plate movably arranged on the support, a stretching part and a trimming part, the stretching part and the trimming part are sequentially arranged between the base and the pressing plate in the axial direction of the base, and a first material taking assembly is arranged at the position, close to the stretching part, of one side of the base. A second material taking assembly is arranged at the position, corresponding to the position between the stretching part and the edge cutting part, of the other side of the base, and a discharging mechanism is arranged on the second material taking assembly. A guide column is arranged on the base, a guide sleeve is arranged at the position, corresponding to the guide column, of the pressing plate, and the outer side of the guide column is sleeved with the guide sleeve. According to the utility model, the stretching part and the trimming part are arranged between the base and the pressing plate, the first grabbing component is used for feeding the stretching part, the second grabbing component is used for feeding and discharging the trimming part, and then the discharging mechanism is used for discharging trimmed wastes, so that the aims of composite forming and processing and improving the production efficiency are fulfilled.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a composite mold for stretching and trimming pot body. Background Technology

[0002] In the existing pot body production process, manual material handling, feeding, and unloading are mainly used. However, due to the large contact area between the workpiece and the production mold, the workpiece is prone to sticking to the mold. Manual material handling is labor-intensive and poses safety hazards. In addition, the turnaround time between multiple processes is long, which not only results in low production efficiency but also easily damages the surface quality of the workpiece, directly affecting the processing quality of the product. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pot body stretching and trimming composite mold that facilitates loading and unloading and improves processing efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a pot body stretching and trimming composite mold is provided, including a base, a bracket set on the base, a pressure plate movably set on the bracket, and a stretching part and a trimming part arranged sequentially between the base and the pressure plate along the axial direction of the base. A first material taking component is provided on one side of the base near the stretching part, and a second material taking component is provided on the other side of the base (1) at the position corresponding to the stretching part and the trimming part. A material discharging mechanism is provided on the second material taking component. A guide post is provided on the base, and a guide sleeve is provided on the pressure plate (100) at the position corresponding to the guide post. The guide sleeve is sleeved on the outside of the guide post.

[0005] With the above structure, a guide sleeve is fitted onto the outside of the guide post to prevent the pressure plate from shifting due to force during molding, thus preventing one-sided molding. Simultaneously, during operation, the first material-taking component feeds the stretching section. After the stretching section is completed, the second material-taking component transfers the material from the stretching section to the trimming section. Meanwhile, the first material-taking component continues feeding the stretching section. When both the stretching and trimming sections are completed, the second material-taking component removes the material from the trimming section and simultaneously picks up the material from the stretching section and transfers it to the trimming section. At this point, the first material-taking component continues feeding the stretching section, thus achieving automatic loading and unloading. The designed discharge structure facilitates the removal of trimming waste from the trimming section, making product placement easier and preventing waste accumulation, thereby improving production efficiency.

[0006] To facilitate production and simplify the installation structure, preferably, the stretching part includes a first cylinder located at the lower end of the base and connected to an air pump, a first boss located at the upper end of the base corresponding to the position of the first cylinder, and a pressure sleeve located on the pressure plate. A support plate is connected to the output end of the first cylinder, and multiple vertically upward-extending base support rods are provided on the support plate along the circumferential direction. A fixing plate sleeved on the outside of the first boss is connected to the protruding ends of the multiple support rods. A baffle sleeved on the outside of the first boss is elastically provided on the fixing plate. A main cylinder connected to the air pump is provided on the bracket, and a connecting rod extending downward through the bracket is provided at the output end of the main cylinder. The protruding end of the connecting rod is connected to the pressure plate, and the pressure sleeve is located at the lower end of the pressure plate corresponding to the position of the first boss.

[0007] To facilitate rapid material discharge, preferably, a stepped hole is provided in the pressure sleeve, with the larger end of the stepped hole located directly above the first boss; a push rod is provided on the bracket at the position corresponding to the pressure sleeve, the push rod passes downward through the pressure plate, and the protruding end of the push rod extends into the smaller end of the stepped hole.

[0008] To facilitate installation and simplify the installation structure, preferably, multiple compression springs are uniformly fixed along the circumferential direction on the fixing plate, and the upper ends of the multiple compression springs are connected and fixed to the lower end face of the baffle.

[0009] To facilitate production and remove trimming waste, preferably, the trimming part includes a second boss on the base, a cutting ring groove on the base and surrounding the second boss, a cutting ring sleeve fixed on the pressure plate, and a discharge mechanism on the pressure plate. Multiple support rods are evenly inserted circumferentially at the bottom of the cutting ring groove. Each support rod has a tension spring sleeved on its outer side. The upper ends of the multiple tension springs are fixedly connected to the lower ends of the top material ring. The upper end of the top material ring is flush with the upper end of the base, and a gap is left between the inner wall of the top material ring and the inner wall of the cutting ring groove. The upper end of the cutting ring sleeve is fixedly connected to the pressure plate. The lower end of the outer wall of the cutting ring sleeve is surrounded by a tapered section that is wider at the top and narrower at the bottom. The lower end of the tapered section is configured as a cutting edge, which is located directly above the gap.

[0010] To facilitate the removal of the trimmed waste, preferably, the unloading mechanism includes two second cylinders fixed on the pressure plate and symmetrically arranged on the left and right sides of the cutting ring sleeve. An unloading ring is sleeved on the outer side of the cutting ring sleeve, and the output end of each of the two second cylinders is provided with a push rod that is connected and fixed to the unloading ring.

[0011] To facilitate material loading in the stretching section, the first material handling assembly preferably includes a first robotic arm and a first suction cup fixed to the execution end of the first robotic arm, the first suction cup being connected to an air pump.

[0012] To facilitate simultaneous loading and unloading at the cutting edge, the second material handling assembly preferably includes a second robotic arm and a suction cup assembly disposed at the execution end of the second robotic arm. A fixed frame is provided at the execution end of the second robotic arm, a linear motor is provided on the fixed frame, and a fixed rod is provided at the output end of the linear motor. The suction cup assembly includes a second suction cup and a third suction cup disposed on the fixed rod along the axial direction, and both the second and third suction cups are connected to an air pump.

[0013] In order to avoid interfering with the loading and unloading operations and to prevent the removed waste material from damaging the product, the discharge mechanism preferably includes a receiving plate obliquely arranged at the upper end of the fixed rod corresponding to the position of the third suction cup. The higher end of the receiving plate is located directly below the cutting ring, and the lower end of the receiving plate protrudes obliquely downward from the outer wall of the base.

[0014] To facilitate the collection of waste material from the cut edges, it is preferable to provide a material collection cylinder on the base at the position corresponding to the receiving plate, with the lower end of the receiving plate located above the upper opening of the material collection cylinder.

[0015] Beneficial effects: This utility model sets up a stretching part and a cutting part between the base and the pressure plate, and the first gripping component feeds the stretching part, and the second gripping component feeds and unfeeds the cutting part. Then the discharge mechanism discharges the waste material of the cutting part, thereby achieving the purpose of composite molding processing and improving production efficiency. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 Top view.

[0019] Figure 3 This is a schematic diagram of the second robotic arm in standby mode.

[0020] Figure 4 This is a schematic diagram showing the usage state of the cut edge.

[0021] Figure 5 This is a schematic diagram of the material discharge mechanism.

[0022] The meanings of the labels in the attached diagram are as follows:

[0023] Base-1; Bracket-10; Pressure plate-100; Guide sleeve-101; First cylinder-11; Support plate-110; Support rod-111; First boss-12; Pressure sleeve-13; Step hole-131; Fixing plate-14; Baffle-15; Main cylinder-16; Connecting rod-161; Push rod-17; Compression spring-18;

[0024] Second boss-21; Cutting ring groove-22; Cutting ring sleeve-23; Conical section-231; Unloading ring-232; Support rod-24; Tension spring-25; Ejector ring-26; Gap-261; Second cylinder-27; Ejector rod-28;

[0025] First robotic arm - 3; First suction cup - 31; Second robotic arm - 4; Fixing frame - 40; Second suction cup - 41; Linear motor - 42; Fixing rod - 43; Third suction cup - 44; Receiving plate - 45; Collecting cylinder - 46;

[0026] Air pump-5; guide column-6; conveyor belt-7. Detailed Implementation

[0027] Depend on Figures 1 to 5 As shown, this utility model includes a base 1, a bracket 10 disposed on the base 1, a pressure plate 100 movably disposed on the bracket 10, and a stretching portion and a cutting portion sequentially disposed between the base 1 and the pressure plate 100 along the axial direction of the base 1. A first material-picking component is provided on one side of the base 1 near the stretching portion, and a second material-picking component is provided on the other side of the base 1 at a position corresponding to the stretching portion and the cutting portion. A material discharge mechanism is provided on the second material-picking component. A guide post 6 is provided on the base 1, and a guide sleeve 101 is provided on the pressure plate 100 at a position corresponding to the guide post 6. The guide sleeve 101 is sleeved on the outside of the guide post 6.

[0028] Specifically, the stretching part includes a first cylinder 11 disposed at the lower end of the base 1 and connected to the air pump 5, a first boss 12 disposed at the upper end of the base 1 corresponding to the position of the first cylinder 11, and a pressure sleeve 13 disposed on the pressure plate 100. A support plate 110 is connected to the output end of the first cylinder 11. Multiple vertically upward support rods 111 are disposed on the support plate 110 along the circumferential direction and pass through the base 1. A fixing plate 14 sleeved on the outside of the first boss 12 is connected to the protruding ends of the multiple support rods 111. A baffle 15 sleeved on the outside of the first boss 12 is elastically disposed on the fixing plate 14. A main cylinder 16 connected to the air pump 5 is disposed on the bracket 10. A connecting rod 161 passing downward through the bracket 10 is disposed at the output end of the main cylinder 16. The protruding end of the connecting rod 161 is connected to the pressure plate 100. The pressure sleeve 13 is disposed at the lower end of the pressure plate 100 corresponding to the position of the first boss 12.

[0029] The pressure sleeve 13 is provided with a stepped hole 131, the large end of the stepped hole 131 is located directly above the first boss 12; a top material rod 17 is provided on the bracket 10 at the position corresponding to the pressure sleeve 13, the top material rod 17 extends downward through the pressure plate 100, and the protruding end of the top material rod 17 extends into the small end of the stepped hole 131.

[0030] In addition, a plurality of compression springs 18 are uniformly fixed on the fixed plate 14 along the circumferential direction, and the upper ends of the plurality of compression springs 18 are connected and fixed to the lower end face of the baffle 15.

[0031] The cutting section includes a second boss 21 on the base 1, a cutting ring groove 22 on the base 1 and surrounding the second boss 21, a cutting ring sleeve 23 fixed on the pressure plate 100, and a discharge mechanism on the pressure plate 100. Multiple support rods 24 are evenly inserted circumferentially at the bottom of the cutting ring groove 22. A tension spring 25 is sleeved on the outer side of each support rod 24. The upper surfaces of the multiple tension springs 25 are all connected to the top ring 23. The lower end face of 6 is fixedly connected, the upper end face of the top material ring 26 is flush with the upper end face of the base 1, and a gap 261 is left between the inner side wall of the top material ring 26 and the inner side wall of the cutting ring groove 22; the upper end of the cutting ring sleeve 23 is fixedly connected to the pressure plate 100, and the lower end of the outer wall of the cutting ring sleeve 23 is surrounded by a tapered section 231 that is wider at the top and narrower at the bottom. The lower end face of the tapered section 231 is set as a cutting edge, and the cutting edge is located directly above the gap 261.

[0032] The unloading mechanism includes two second cylinders 27 fixed on the pressure plate 100 and symmetrically arranged on the left and right sides of the cutting ring sleeve 23. An unloading ring 232 is sleeved on the outside of the cutting ring sleeve 23. The output ends of the two second cylinders 27 are provided with push rods 28 that are connected and fixed to the unloading ring 232.

[0033] In addition, the first material handling component includes a first robotic arm 3 and a first suction cup 31 fixed at the execution end of the first robotic arm 3, the first suction cup 31 being connected to the air pump 5.

[0034] The second material handling assembly includes a second robotic arm 4 and a suction cup assembly disposed at the execution end of the second robotic arm 4. A fixed frame 40 is provided at the execution end of the second robotic arm 4, and a linear motor 42 is provided on the fixed frame 40. A fixed rod 43 is provided at the output end of the linear motor 42. The suction cup assembly includes a second suction cup 41 and a third suction cup 44 disposed on the fixed rod 43 along the axial direction. Both the second suction cup 41 and the third suction cup 44 are connected to the air pump 5.

[0035] Meanwhile, the material discharge mechanism includes a receiving plate 45 obliquely arranged at the upper end of the fixed rod 43 corresponding to the position of the third suction cup 44. The high end of the receiving plate 45 is located directly below the cutting ring sleeve 23, and the low end of the receiving plate 45 protrudes obliquely downward from the outer wall of the base 1.

[0036] A material collecting cylinder 46 is provided on the base 1 at the position corresponding to the receiving plate 45, and the lower end of the receiving plate 45 is located above the upper opening of the material collecting cylinder 46.

[0037] The working principle of this utility model is as follows:

[0038] like Figures 1 to 5 As shown, this embodiment is applied to the production of a pot body. The pot body has an outwardly extending section (not shown) on the outside of the notch. In the following, the pot body is referred to as the workpiece. In use, the first robotic arm 3 is activated, which moves the first suction cup 31 to the material area. The air pump 5 sucks air from the first suction cup 31 to pick up a workpiece in the form of negative pressure. The notch of the workpiece faces downward. The first robotic arm 3 moves it to the top of the first boss 12. The air pump 5 inflates the first suction cup 31, and the workpiece falls down and is fitted onto the outside of the first boss 12. The lower end face of the extension section of the workpiece is in contact with the upper end face of the baffle 15, and the upper end face of the first boss 12 abuts against the inner bottom of the workpiece. Then, the actuator of the first robotic arm 3 moves out of the position range directly below the pressure plate 100.

[0039] Next, the main cylinder 16 is activated, causing the pressure plate 100, pressure sleeve 13, and cutting ring sleeve 23 to move downwards simultaneously. The guide sleeve 101 is fitted onto the guide post 6 to assist in the orientation of the pressure plate 100 and to fit the large end of the stepped hole 131 onto the outside of the workpiece. The pressure sleeve 13 continues to move downwards, and the lower end face of the pressure sleeve 13 abuts against the upper end face of the extension section, forming a clamping shape with the baffle 15. In this way, as the pressure sleeve 13 moves downwards, a stretching and forming operation is performed on the side wall of the workpiece.

[0040] At the same time, the baffle 15 presses the compression spring 18 that is uniformly fixed along the circumference. Then, the first cylinder 11 is activated, and the support plate 110 and the support rod 111 drive the fixed plate 14 and the pressure sleeve 13 to move downward synchronously. In this way, during the stretching process, the compression spring 18 plays a buffering role in the downward stretching, and at the same time, it counteracts the reaction force of the elastic force of the compression spring 18 on the stretching action, reducing the resistance of stretching and thus improving the efficiency of workpiece stretching.

[0041] After stretching to the desired position, the main cylinder 16 is activated to move the pressure plate 100 and the pressure sleeve 13 upward. Subsequently, the first cylinder 11 is activated to move the baffle 15 upward back to the initial position. During the stretching process, the outer wall of the workpiece and the wall of the large hole end of the stepped hole 131 remain in contact. During the stretching process, the friction between them is greater than the weight of the workpiece, causing the workpiece to move upward synchronously with the pressure sleeve 13. At this time, the ejector rod 17 also moves within the small hole end of the stepped hole 131. As the pressure sleeve 13 moves upward, the lower end face of the ejector rod 17 contacts the workpiece and pushes the workpiece downward, thereby achieving the purpose of unloading in the stretching section. The ejected workpiece falls back onto the first boss 12 in a sleeved position.

[0042] During this process, there is no workpiece at the cutting edge; it is in an empty running state.

[0043] Subsequently, the second robotic arm 4 is activated, moving the fixed rod 43 horizontally above the base 1, positioning the second suction cup 41 above the first boss 12 and the third suction cup 44 above the second boss 21. The second robotic arm 4 then moves the fixed rod 43 downwards, allowing the second suction cup 41 to contact the stretched workpiece. The air pump 5 then draws air from the second suction cup 41, using negative pressure to suck up the stretched workpiece. Next, the second robotic arm 4 moves the second suction cup 41 and the stretched workpiece upwards synchronously, moving them away from the first boss 12. Immediately afterward, the linear motor 42 is activated, and the fixed rod 4... 3. Move the second suction cup 41 and the stretched workpiece above the second boss 21. Then, the second robotic arm 4 moves the second suction cup 41 and the stretched workpiece down. Then, the air pump 5 inflates the second suction cup 41 and the third suction cup 44 at the same time, and makes the stretched workpiece fit on the outside of the second boss 21. Then, the second robotic arm 4 moves the fixing rod 43 out of the position range directly below the pressure plate 100. At this time, the lower end face of the extension section of the stretched workpiece abuts against the upper end face of the base 1 and the top material ring 26 at the same time, and the upper end face of the second boss 21 abuts against the inner bottom of the stretched workpiece.

[0044] Re-start the main cylinder 16, driving the pressure plate 100, pressure sleeve 13, and cutting ring sleeve 23 to move downwards synchronously. At this time, at the cutting edge position, the cutting ring sleeve 23 is fitted on the outside of the stretched workpiece, and the inner sidewall of the cutting ring sleeve 23 is in contact with the outer sidewall of the stretched workpiece. As the cutting ring sleeve 23 moves downwards, the cutting edge abuts against the extension section of the stretched workpiece and cuts off the extension section at the gap 261 position. After that, the cutting ring sleeve 23 continues to move downwards, and the inner sidewall of the cut-off annular waste material contacts the conical section 231 and is squeezed and bent downwards. At this bending position, the pressing top ring 26 moves downwards under the support of the tension spring 25. As the conical section 231 moves downwards... The downward movement causes the outer wall of the bent position to clamp with the conical section 231; then, the main cylinder 16 is activated, causing the annular waste to move upward synchronously with the cutting ring 23. Subsequently, the second robotic arm 4 is activated to move the fixed rod 43, the second suction cup 41, and the third suction cup 44 back above the base 1. Then, the second cylinder 27 is activated, and the top rod 28 drives the unloading ring 232 downward, thereby pushing the annular waste downward so that the annular waste detaches from the conical section 231 and falls down. Immediately afterwards, the second cylinder 27 is activated, driving the unloading ring 232 to move upward back, and the falling annular waste falls into the inclined receiving plate 45 and then into the collecting cylinder 46.

[0045] During this trimming process, the stretching section is simultaneously loaded by the first robotic arm 3, and the stretching is completed by the pressure plate 100 driving the pressure sleeve 13. Therefore, when the second robotic arm 4 moves the fixed rod 43, the second suction cup 41, and the third suction cup 44 back above the base 1, the second robotic arm 4 moves the fixed rod 43 down so that the second suction cup 41 contacts the stretched workpiece and the third suction cup 44 contacts the trimmed workpiece. Then, the air pump 5 simultaneously sucks air from the second suction cup 41 and the third suction cup 44 to suck up the workpieces processed at both stations in a negative pressure manner. Then, the second robotic arm 4 moves the second suction cup 41 and the stretched workpiece up synchronously and away from the first boss 12, and the third suction cup 44... The disc 44 and the trimmed workpiece move upwards synchronously and leave the second boss 21. Then, the linear motor 42 is started, and the fixed rod 43 drives the second suction cup 41 and the third suction cup 44 to move horizontally, so that the stretched workpiece moves above the second boss 21, while the trimmed workpiece moves out of the base 1 position. Then, the second robotic arm 4 moves the second suction cup 41 and the stretched workpiece downwards. Then, the air pump 5 inflates the second suction cup 41 and the third suction cup 44 at the same time, so that the stretched workpiece is fitted on the outside of the second boss 21. At the same time, the trimmed workpiece falls onto the conveyor belt 7 located on one side of the base 1 for transfer in subsequent processing. Subsequently, the second robotic arm 4 drives the fixed rod 43 to move out of the position range directly below the pressure plate 100 to wait.

[0046] When the second robotic arm 4 moves the workpiece away from the first boss 21, there is no obstruction above the stretching section. Then, the first robotic arm 3 is started to complete the workpiece loading operation in the stretching section according to the aforementioned relevant content. Afterwards, it also leaves the position range directly below the pressure plate 100. Then, the stretching and trimming operations are carried out simultaneously according to the aforementioned relevant content, which will not be repeated here. This process is repeated to complete the stretching and trimming processes under the premise of automatic loading and unloading, thereby improving production efficiency.

[0047] It should be noted that, as Figure 4 As shown, since the thickness of the pot body material is typically in the range of 2-3 mm, and with the top ring 26 connected by the tension spring 25, the extension section of the workpiece is simultaneously abutted in the circumferential direction during edge cutting. At the cutting position, there is a space for force buffering deformation; that is, while abutting and cutting, the extension section tends to bend and form a rolled edge. However, provided the pressure of the main cylinder 16 is sufficient and the cutting edge setting meets the requirements (which can be achieved through equipment debugging before processing), the resulting moving speed and shearing force are sufficient to complete the edge detachment before the extension section forms a rolled edge. Operation; During this process, the inner side of the cut waste material will form a small bend as the conical section 231 moves. The pressure of this bend on the top ring 26 is not a positive pressure. As the conical section 231 moves, the bend cannot be completely deformed. Therefore, the incomplete deformation of the bend causes friction to be formed with the outer diameter of the conical section 231. This causes the cut waste material to be clamped in the wider part of the upper part of the conical section 231 and move away from the base 1 with the cutting ring sleeve 23, so that the subsequent unloading ring 232 can push out the cut waste material.

[0048] In this embodiment, the robotic arms used need to meet the requirements of vertical up and down movement, horizontal circular rotation, and linear movement. Therefore, it is advisable that both the first robotic arm 3 and the second robotic arm 4 be six-way robotic arms.

[0049] Meanwhile, in order to facilitate coordinated control and avoid interference from manual operation, the robotic arm, motor, cylinder and air pump 5 used in this embodiment are all connected to the PLC controller. The PLC controller only sets the relevant usage parameters (such as time interval and movement coordinate parameters) and does not involve the adjustment of the usage program. Therefore, the connection settings of the PLC controller will not be described in detail here.

Claims

1. A pot body stretch trimming compound die, characterized in that: The device includes a base (1), a bracket (10) mounted on the base (1), a pressure plate (100) movably mounted on the bracket (10), and a stretching portion and a cutting portion arranged sequentially between the base (1) and the pressure plate (100) along the axial direction of the base (1). A first material-taking component is provided on one side of the base (1) near the stretching portion, and a second material-taking component is provided on the other side of the base (1) at a position corresponding to the stretching portion and the cutting portion. A material discharge mechanism is provided on the second material-taking component. A guide post (6) is provided on the base (1), and a guide sleeve (101) is provided on the pressure plate (100) at a position corresponding to the guide post (6). The guide sleeve (101) is sleeved on the outside of the guide post (6).

2. A pot body stretch trimming compound die as claimed in claim 1, wherein: The stretching part includes a first cylinder (11) disposed at the lower end of the base (1) and connected to the air pump (5), a first boss (12) disposed at the upper end of the base (1) corresponding to the position of the first cylinder (11), and a pressure sleeve (13) disposed on the pressure plate (100). A support plate (110) is connected to the output end of the first cylinder (11). Multiple vertically upward support rods (111) are disposed on the support plate (110) along the circumferential direction and pass through the base (1). A sleeve is connected to the protruding end of the multiple support rods (111). A fixing plate (14) is provided on the outside of the first boss (12), and a baffle (15) is elastically provided on the fixing plate (14) and sleeved on the outside of the first boss (12); a main cylinder (16) connected to the air pump (5) is provided on the bracket (10), and a connecting rod (161) extending downward through the bracket (10) is provided at the output end of the main cylinder (16). The end of the connecting rod (161) is connected to the pressure plate (100), and the pressure sleeve (13) is provided at the lower end of the pressure plate (100) corresponding to the position of the first boss (12).

3. A pot body stretch trimming compound die as claimed in claim 2, wherein: A stepped hole (131) is provided in the pressure sleeve (13), and the large end of the stepped hole (131) is located directly above the first boss (12); a push rod (17) is provided on the bracket (10) at the position corresponding to the pressure sleeve (13), and the push rod (17) extends downward through the pressure plate (100), and the protruding end of the push rod (17) extends into the small end of the stepped hole (131).

4. A pot body stretch trimming compound die as claimed in claim 2, wherein: Multiple compression springs (18) are uniformly fixed on the fixed plate (14) along the circumferential direction, and the upper ends of the multiple compression springs (18) are connected and fixed to the lower end face of the baffle (15).

5. The pot body stretch trimming compound die as claimed in claim 2, wherein: The cutting section includes a second boss (21) on the base (1), a cutting ring groove (22) on the base (1) and surrounding the second boss (21), a cutting ring sleeve (23) fixed on the pressure plate (100), and a discharge mechanism on the pressure plate (100). Multiple support rods (24) are evenly inserted circumferentially into the bottom of the cutting ring groove (22). Each support rod (24) has a tension spring (25) sleeved on its outer side. The upper surfaces of the multiple tension springs (25) are all flush with the top ring. The lower end face of (26) is fixedly connected, the upper end face of the top material ring (26) is flush with the upper end face of the base (1), and there is a gap (261) between the inner side wall of the top material ring (26) and the inner side wall of the cutting ring groove (22); the upper end of the cutting ring sleeve (23) is fixedly connected to the pressure plate (100), and the lower end of the outer wall of the cutting ring sleeve (23) is surrounded by a tapered section (231) that is wider at the top and narrower at the bottom. The lower end face of the tapered section (231) is set as a cutting edge, and the cutting edge is located directly above the gap (261).

6. A pot body stretch trimming compound die as claimed in claim 5, wherein: The unloading mechanism includes two second cylinders (27) fixed on the pressure plate (100) and symmetrically arranged on the left and right sides of the cutting ring sleeve (23). An unloading ring (232) is sleeved on the outside of the cutting ring sleeve (23). The output end of each of the two second cylinders (27) is provided with a push rod (28) that is connected and fixed to the unloading ring (232).

7. A pot body stretch trimming compound die as claimed in claim 5 wherein: The first material handling component includes a first robotic arm (3) and a first suction cup (31) fixed at the execution end of the first robotic arm (3), and the first suction cup (31) is connected to an air pump (5).

8. A pot body stretch trimming compound die as claimed in claim 7, wherein: The second material handling assembly includes a second robotic arm (4) and a suction cup assembly disposed at the execution end of the second robotic arm (4). A fixed frame (40) is provided at the execution end of the second robotic arm (4). A linear motor (42) is provided on the fixed frame (40). A fixed rod (43) is provided at the output end of the linear motor (42). The suction cup assembly includes a second suction cup (41) and a third suction cup (44) disposed on the fixed rod (43) along the axial direction. Both the second suction cup (41) and the third suction cup (44) are connected to an air pump (5).

9. A pot body stretch trimming compound die as claimed in claim 8, wherein: The material discharge mechanism includes a receiving plate (45) obliquely arranged at the upper end of the fixed rod (43) corresponding to the position of the third suction cup (44). The high end of the receiving plate (45) is located directly below the cutting ring (23), and the low end of the receiving plate (45) protrudes obliquely downward from the outer wall of the base (1).

10. The pot body stretch trimming compound die as claimed in claim 9, wherein: A material collecting cylinder (46) is provided on the base (1) at the position corresponding to the receiving plate (45), and the lower end of the receiving plate (45) is located above the upper opening of the material collecting cylinder (46).

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