A stamping die and a die cutting method thereof

Abstract

The application relates to a punch die and a die cutting method thereof, which comprise an upper die seat, a lower die seat, at least two groups of first guide column assemblies, an upper clamping plate, a lower clamping plate, a male die, a female die, a plurality of pressing blocks, a stripper plate assembly, a waste driving element, at least two groups of cutter driving assemblies and at least two groups of cutter assemblies. The application has the effect that a sheet-shaped material to be cut is placed on the male die, the sheet-shaped material to be cut is cut through the joint action of the male die and the female die, the cutter driving assembly drives the cutter assembly to cut the waste material of the sheet, and the waste material of the sheet is recycled through the discharge port. The sheet-shaped material to be cut in the whole cutting process is cut in a single sheet cutting mode, and the whole roll cutting mode is not adopted, so the problem that the waste edge strength is pulled off in the winding process does not need to be considered, and the waste edge of each sheet is less than 1mm after cutting, so that the utilization rate of the sheet material is improved.

Description

Technical Field

[0001] This application relates to the field of molds, and more particularly to a stamping mold and a die-cutting method thereof. Background Technology

[0002] In existing metal die-cutting processes, both the material to be cut before cutting and the waste shavings after cutting are on the same plane of the die. Generally, the material to be cut is straightened and fed into the die for die-cutting. After die-cutting, the electrode sheet is removed by a robotic arm, while the waste shavings are rolled up and collected.

[0003] The drawback of this method is that it requires leaving a sufficiently wide edge for the slicing waste to ensure that the waste edge is strong enough not to break during the winding process. Typically, an edge of more than 3 mm of slicing waste needs to be reserved. This 3 mm or more edge of slicing waste is wasted scrap material that cannot be reused, resulting in low utilization of the slicing material. Summary of the Invention

[0004] To address the problem of excessive waste from slicing materials, this application provides a stamping die and a die-cutting method thereof.

[0005] In a first aspect, this application provides a stamping die, which adopts the following technical solution:

[0006] A stamping die, characterized in that it includes an upper die base, a lower die base, at least two sets of first guide post assemblies, an upper clamping plate, a lower clamping plate, a punch, a die, several pressure blocks, a stripper plate assembly, a scrap drive component, at least two sets of cutter drive assemblies, and at least two sets of cutter assemblies;

[0007] The first guide post assembly has its two ends fixedly connected to the bottom surface of the upper mold base and the top surface of the lower mold base, respectively. The die cavity is installed on the bottom surface of the upper mold base, the punch is installed on the top surface of the lower mold base and is radially opposite to the die cavity, the pressure block is installed on the bottom surface of the upper clamping plate and is radially opposite to the cutter drive assembly, the unloading plate assembly is radially elastically disposed inside the die cavity, the waste material drive component is disposed on the die cavity along the edge of the unloading plate assembly, the cutter drive assembly is installed on the lower clamping plate for driving the cutter assembly to approach or move away from the slicing waste, one end of the cutter assembly is disposed on the cutter drive assembly, and the lower clamping plate and the lower mold base are sequentially provided with discharge ports radially opposite to the slicing waste.

[0008] By adopting the above technical solution, the sheet-shaped material to be cut is placed on the punch, and the sheet-shaped material is sliced ​​by the combined action of the punch and the die. The cutting blade drive assembly drives the cutting blade assembly to cut the slicing waste, and the slicing waste is recycled from the discharge port. The sheet-shaped material to be cut in the whole cutting process is cut into single slices instead of whole rolls. Therefore, there is no need to consider the problem of the waste edge being broken during the winding process. Each slice only needs to leave a slicing waste edge of less than 1 mm after cutting, which helps to improve the utilization rate of the sliced ​​material.

[0009] Optionally, the stripper plate assembly includes a first elastic element, a support column, and a stripper plate. One end of the first elastic element is mounted on the upper mold base, and the other end is mounted on one end of the support column. The other end of the support column is mounted on the stripper plate, which is used to drive the stripper plate to move radially within the die cavity.

[0010] By adopting the above technical solution, the expansion and contraction of the first elastic element can control the stripper plate to move closer to or further away from the sheet-like object to be cut through the support column, so that the punch and die can work together to cut the sheet-like object.

[0011] Optionally, the waste drive component is configured as a plurality of ejector pins, which are disposed on the die along the edge of the stripper plate.

[0012] By adopting the above technical solution and setting up several ejector pins, after the punch and die work together to slice the sheet-like object to be cut, the ejector pins can quickly squeeze the waste slice off the slice and push it to the cutting edge of the cutting assembly, so that the cutting assembly can cut the waste slice.

[0013] Optionally, the waste drive component is configured with a plurality of air blowing holes, which are formed on the die along the edge of the unloading plate.

[0014] By adopting the above technical solution, several air holes are used to squeeze the slicing waste off the slice and push it to the blade of the cutting assembly, so that the cutting assembly can cut the slicing waste. At the same time, it can also work together with the ejector pin to squeeze the slicing waste off the slice and push it to the blade of the cutting assembly.

[0015] Optionally, the cutter drive assembly includes a base, a cover plate, at least two guide members, at least two second elastic members, a slide plate, and a slider. One end of each of the two guide members is fixedly mounted on the base, and the other end is slidably mounted on the cover plate. The second elastic members are sleeved on the guide members and their two ends abut against the base and the cover plate, respectively. The slide plate is slidably mounted on the base in a horizontal direction. One end of the slider is fixedly mounted on the cover plate, and the other end is slidably mounted inside the slide plate at a preset angle.

[0016] By adopting the above technical solution, the cover plate drives the slider to move at a preset angle under the action of external force, and then the slider drives the slide plate to move closer to or away from the punch, thereby facilitating the opening or closing of the upper and lower cutting blades to complete the cutting of the slicing waste.

[0017] Optionally, the cutter drive assembly includes an inlet valve, an outlet valve, an inlet valve lever, an outlet valve lever, and at least two cylinders. The inlet valve and outlet valve are respectively installed at both ends of the lower clamping plate. The inlet valve lever is elastically disposed at the end of the lower clamping plate near the inlet valve and is used to control the connection or disconnection between the inlet valve and the cylinder. The outlet valve lever is elastically disposed at the end of the lower clamping plate near the outlet valve and is used to control the connection or disconnection between the outlet valve and the cylinder. The cylinders are fixedly installed on the lower clamping plate.

[0018] By adopting the above technical solution, air is introduced through the air intake valve to push the telescopic rod of the cylinder closer to or away from the punch, and then the telescopic rod of the cylinder quickly drives the first cutter to cut the slicing waste.

[0019] Optionally, the cutter assembly includes an upper cutter and a lower cutter, with one end of the upper cutter mounted on the base and one end of the lower cutter mounted on the slide plate.

[0020] By adopting the above technical solution, the lower cutter moves closer to or further away from the punch under the drive of the slide plate, thereby opening or closing the blades of the upper and lower cutters and quickly completing the cutting of the slicing waste.

[0021] Optionally, the cutter assembly includes a first cutter, a cutter bracket, and a seventh elastic element. One end of the seventh elastic element is mounted on one end of the cutter bracket, and the other end is mounted on the cylinder. One end of the first cutter is fixedly mounted on the other end of the cutter bracket.

[0022] By adopting the above technical solution, the first cutter, driven by the cutter bracket and the seventh elastic element, moves closer to or further away from the slicing waste, and quickly completes the cutting of the slicing waste.

[0023] Optionally, the end of the discharge port near the punch has a front baffle plate, and a rear baffle plate is provided on the discharge port opposite to the front baffle plate.

[0024] By adopting the above technical solution, the front baffle and the rear baffle are designed to facilitate the accurate entry of the slicing waste into the discharge port, where it is then removed by the waste extraction mechanism.

[0025] Secondly, this application provides a die-cutting method for a stamping die, employing the following technical solution:

[0026] Place the sheet-shaped workpiece onto the punch;

[0027] External force presses the upper mold base and drives the upper clamping plate and the die to move toward the punch direction in sequence, until the stripper plate assembly and the sheet-shaped workpiece to be cut, the pressure block and the cutter drive assembly come into contact with each other;

[0028] The die continues to move toward the punch until the slicing of the sheet-like object is completed under the combined action of the die and the punch.

[0029] The waste drive unit drives the sliced ​​waste to move towards the cutter assembly until it comes into contact with the blade of the cutter assembly;

[0030] The cutter drive assembly controls the cutter assembly to cut the slicing waste;

[0031] The cut waste slices flow out from the discharge port;

[0032] During the springback process, the first guide post assembly drives the stripper plate assembly to separate from the slice through the die.

[0033] Remove the cut slices from the punch.

[0034] By adopting the above technical solution, the sheet-shaped material to be cut is placed on the punch, and the external force presses the upper die seat, which in turn drives the upper clamping plate and the die to move towards the punch. The sheet-shaped material to be cut is sliced ​​by the combined action of the punch and the die. The cutting blade drive assembly drives the cutting blade assembly to cut the slicing waste, and the slicing waste is recycled from the discharge port. The sheet-shaped material to be cut in the whole cutting process is sliced ​​in single pieces, without using the whole roll cutting method. Therefore, there is no need to consider the problem of the waste edge being broken during the winding process. Each slice only needs to leave a slicing waste edge of less than 1 mm after cutting, which helps to improve the utilization rate of the sliced ​​material.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] 1. The entire cutting process uses single-piece slicing instead of whole-roll cutting, so there is no need to consider the problem of the waste edge being broken during the winding process. Each slice only needs to leave a slicing waste edge of less than 1 mm after cutting, which helps to improve the utilization rate of sliced ​​materials.

[0037] 2. The die is equipped with ejector pins. The purpose of the ejector pins is to prevent the slicing waste from sticking to the die. At the same time, the ejector pins deliver the slicing waste to the opening of the cutter so that it can be cut off. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the assembly structure of the stamping die according to Embodiment 1 of this application.

[0039] Figure 2 yes Figure 1 A cross-sectional view of the stamping die in Embodiment 1 of this application.

[0040] Figure 3 yes Figure 1 A schematic diagram of the cutting drive assembly and cutting assembly structure of the stamping die in Embodiment 1 of this application.

[0041] Figure 4 yes Figure 1 A schematic diagram of the first guide post assembly of the stamping die in Embodiment 1 of this application.

[0042] Figure 5 yes Figure 1 A schematic diagram of the second guide post assembly of the stamping die in Embodiment 1 of this application.

[0043] Figure 6 yes Figure 1 A schematic diagram of the die cavity structure of the stamping die in Embodiment 1 of this application.

[0044] Figure 7 This is a schematic diagram of the assembly structure of the stamping die according to Embodiment 2 of this application.

[0045] Figure 8 This is a schematic diagram of the cutting drive assembly and the assembly structure of the cutting assembly and the lower die of the stamping die according to Embodiment 2 of this application.

[0046] Figure 9 This is a schematic diagram of the cutting drive assembly and the cutting assembly assembly structure of the stamping die according to Embodiment 2 of this application.

[0047] Figure 10 This is a schematic diagram of the assembly structure of the stamping die according to Embodiment 3 of this application.

[0048] Figure 11 This is a schematic diagram of the third cutting blade structure of the stamping die in Embodiment 3 of this application.

[0049] Figure 12 This is a flowchart of a die-cutting method for a stamping die according to an embodiment of this application.

[0050] Explanation of reference numerals in the attached drawings: 1. Upper mold base; 2. Lower mold base; 3. First guide post assembly; 4. Upper clamping plate; 5. Lower clamping plate; 6. Punch; 7. Die; 8. Stripper plate assembly; 9. Scrap drive component; 10. Cutter drive assembly; 11. Cutter assembly; 12. Sliced ​​scrap; 13. Second guide post assembly; 14. Discharge port; 15. Front stop plate; 16. Rear stop plate; 21. Vent groove; 31. First guide post; 32. Third elastic element; 33. First guide sleeve; 131. Second guide post; 132. Fourth elastic element; 133. Second guide sleeve; 71. Receiving groove; 81. 81. First elastic element; 82. Support column; 83. Unloading plate; 91. Ejector pin; 92. Air blowing hole; 110. Base; 120. Cover plate; 130. Guide element; 140. Second elastic element; 150. Slide plate; 160. Slider; 170. Air inlet valve; 180. Air outlet valve; 190. Air inlet valve lever; 200. Air outlet valve lever; 210. Cylinder; 111. Upper cutter; 112. Lower cutter; 113. First cutter; 114. Cutter bracket; 115. Third cutter; 191. First lever; 211. Second lever; 213. Vent; 214. Air inlet end. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0052] Reference Figure 1 and Figure 2 This application discloses a stamping die, including an upper die base 1, a lower die base 2, at least two sets of first guide post assemblies 3, an upper clamping plate 4, a lower clamping plate 5, a punch 6, a die 7, several pressure blocks, a stripper plate assembly 8, a scrap drive component 9, at least two sets of cutter drive assemblies 10, and at least two sets of cutter assemblies 11.

[0053] The first guide post assembly 3 has its two ends fixedly connected to the bottom surface of the upper mold base 1 and the top surface of the lower mold base 2, respectively. The die 6 is installed on the bottom surface of the upper mold base 1. The punch 6 is installed on the top surface of the lower mold base 2 and is radially opposite to the die 6. The pressure block is installed on the bottom surface of the upper clamping plate 5 and is radially opposite to the cutter drive assembly 10. The unloading plate assembly 8 is radially elastically disposed in the die 7. The waste material drive component 9 is disposed on the die 7 along the edge of the unloading plate assembly 8. The cutter drive assembly 10 is installed on the lower clamping plate 5 to drive the cutter assembly 11 to approach or move away from the slicing waste 12. One end of the cutter assembly 11 is disposed on the cutter drive assembly 10. The lower clamping plate 5 and the lower mold base 2 are sequentially provided with discharge ports 14 that are radially opposite to the slicing waste 12.

[0054] Reference Figure 4The first guide post assembly 3 can be in two, four, or six sets. The first guide post assembly 3 includes a first guide post 31, a third elastic element 32, and a first guide sleeve 33. The bottom end of the first guide post 31 is fixedly installed on the lower mold base 2. The third elastic element 32 is sleeved on the first guide post 31. One end of the first guide sleeve 33 is installed in the mounting hole 11 of the upper mold base 1, and the other end is sleeved on the top end of the first guide post 31 and abuts against the top end of the third elastic element 32. It can move with the movement of the upper mold base 1.

[0055] When die cutting is required, when an external force (e.g., using a stamping machine) presses the upper die base 1, the first guide sleeve 33 also moves with the upper die base 1 towards the lower die base 2. When it comes into contact with the third elastic element 32, it gradually compresses the third elastic element 32 and causes deformation. When the external force is removed, the third elastic element 32 needs to return to its initial state, and then pushes the first guide sleeve 33 back to its initial position during the process of restoring deformation.

[0056] Furthermore, referring to Figure 5 The stamping die also includes a second guide post assembly 13, which can consist of two, four, or six sets. The second guide post assembly 13 includes a second guide post 131, a fourth elastic element 132, and a second guide sleeve 133. The bottom end of the second guide post 131 is fixedly installed on the lower clamping plate 5. The fourth elastic element 132 is sleeved on the second guide post 131. One end of the second guide sleeve 133 is installed on the upper clamping plate 4, and the other end is sleeved on the second guide post 131 and abuts against the top end of the fourth elastic element 132.

[0057] When die cutting is required, when an external force (e.g., using a stamping machine) presses down on the upper die holder 1, the second guide sleeve 133 also moves with the upper die holder 1 towards the lower die holder 2. When it comes into contact with the fourth elastic element 132, it gradually compresses the fourth elastic element 132, causing deformation. When the external force is removed, the fourth elastic element 132 needs to return to its initial state, and in the process of restoring its deformation, it pushes the second guide sleeve 133 back to its initial position. The second guide post assembly 13 can play a good auxiliary role to the first guide post assembly 3, and after the external force is removed, it can quickly push the upper die holder 1 and the upper clamping plate 4 back to their initial positions.

[0058] Furthermore, referring to Figure 2 The stripper plate assembly 8 includes a first elastic element 81, a support column 82, and a stripper plate 83. One end of the first elastic element 81 is mounted on the upper mold base 1, and the other end is mounted on one end of the support column 82. The other end of the support column 82 is mounted on the stripper plate 83, which is used to drive the stripper plate 83 to move radially within the cavity mold 7.

[0059] The die 7 has a receiving groove 71 inside. The shape of the receiving groove 71 is adapted to the shape of the stripper plate 83. The height of the receiving groove 71 is greater than the thickness of the stripper plate 83, which facilitates the cooperation of the punch 6 and the die 7 to complete the cutting of the sheet-shaped object to be cut.

[0060] When a sheet-like object needs to be die-cut, when an external force (e.g., using a stamping machine) presses down on the upper die base 1, the upper die base 1 drives the stripper plate assembly 8 on the die 7 to move towards the punch 6 via the upper clamping plate 4, until the stripper plate 83 and the sheet-like object to be cut on the punch 6 come into contact with each other. At this time, under the action of the external force, the upper die base 1 continues to descend. Under the combined force of the upper die base 1 and the punch 6, the first elastic element 81 is compressed, and the stripper plate 83 moves away from the lower die base 2 until the stripper plate 83 is at least partially accommodated in the receiving groove 71. At this time, the die-cutting is completed under the combined action of the punch 6 and the die 7, and the shape and size of the slice are adapted to the shape and size of the stripper plate 83.

[0061] Furthermore, referring to Figure 2 and Figure 6 The waste drive component 9 is configured as a plurality of ejector pins 91, which are disposed on the die 7 along the edge of the stripper plate 83; the waste drive component 9 is configured as a plurality of air holes 92, which are opened on the die 7 along the edge of the stripper plate 83.

[0062] A number of ejector pins 91 and a number of air holes 92 can be respectively set on the cavity 7 of the edge of the stripper plate 83; or they can be set together on the cavity 7 of the edge of the stripper plate 83, with the ejector pins 91 set in the inner layer near the stripper plate 83 and the air holes 92 set in the outer layer of the ejector pins 91.

[0063] Example 1

[0064] Reference Figure 1 and Figure 3 The cutter drive assembly 10 includes a base 110, a cover plate 120, at least two guide members 130, at least two second elastic members 140, a slide plate 150, and a slider 160. One end of each guide member 130 is fixedly mounted on the base 110, and the other end is slidably mounted on the cover plate 120. The second elastic members 140 are sleeved on the guide members 130 and their two ends abut against the base 110 and the cover plate 120, respectively. The slide plate 150 is slidably mounted on the base 110 in a horizontal direction. One end of the slider 160 is fixedly mounted on the cover plate 120, and the other end is slidably mounted inside the slide plate 150 at a preset angle. The cutter assembly 11 includes an upper cutter 111 and a lower cutter 112. One end of the upper cutter 111 is mounted on the base 110, and one end of the lower cutter 112 is mounted on the slide plate 150.

[0065] There can be two or four guide members 130, depending on the actual needs. Two guide members 130 are symmetrically arranged on the base 110. The second elastic member 140 can be a spring or any elastic member with a specific elastic function. Each pressure block and cover plate 120 are arranged opposite each other in the radial direction, and the base 110 has a dovetail plate structure.

[0066] The implementation principle of Example 1 is as follows: When a sheet-like object needs to be die-cut, when an external force (e.g., using a stamping machine) presses down on the upper die base 1, the upper die base 1, through the upper clamping plate 4, drives the stripper plate assembly 8 on the die 7 to move towards the punch 6 until the stripper plate 83 abuts against the sheet-like object on the punch 6. At this time, under the action of the external force, the upper die base 1 continues to descend. Under the combined force of the upper die base 1 and the punch 6, the first elastic element 81 is compressed, and the stripper plate 83 moves away from the lower die base 2 until the stripper plate 83 is at least partially accommodated in the receiving groove 71. The die cutting is completed under the combined action of the punch 6 and the die 7. The shape and size of the slice are adapted to the shape and size of the stripper plate 83. During the die cutting process, the pressure block squeezes the cover plate 120, causing the cover plate 120 to move towards the base 110 while driving the slider 160 to move in a preset direction. During the movement, the slider 160 drives the slide plate 150 to move away from the punch 6 and drives the lower cutter 112 to move away from the punch 6, so that the cutting edges of the upper cutter 111 and the lower cutter 112 are separated. At this time, the second elastic element 140 is in a compressed deformation state. After die-cutting is completed, several ejector pins 91 and / or several air holes 92 squeeze the slicing waste 12 to the cutting edges of the upper cutter 111 and the lower cutter 112. After the external force is removed, the third elastic element 32 of the first guide post assembly 3 needs to return to its initial state, and then pushes the first guide sleeve 33 back to its initial position during the process of restoring deformation. This causes the upper mold base 1, the upper clamping plate 4, and the die 7 to move away from the punch 6 and initially return to their initial positions. At this time, the pressure block separates from the cover plate 120, and the second... The elastic element 140 recovers its deformation and causes the cover plate 120 to move away from the base 110. During the movement, the cover plate 120 drives the slide plate 150 to move closer to the punch 6 via the slider 160. The slide plate 150 drives the lower cutter 112 to move towards the punch 6. At this time, the slicing waste 12 is at the cutting edge. The upper cutter 111 and the lower cutter 112 work together to cut the slicing waste 12. After the cutting is completed, several slicing wastes 12 fall into the discharge port 14 and are extracted by the waste extraction mechanism.

[0067] Example 2

[0068] Reference Figure 7 , Figure 8 and Figure 9The cutter drive assembly 10 includes an inlet valve 170, an outlet valve 180, an inlet valve lever 190, an outlet valve lever 200, and at least two cylinders 210. The inlet valve 170 and the outlet valve 180 are respectively installed at both ends of the lower clamping plate 5. The inlet valve lever 170 is elastically disposed at the end of the lower clamping plate 5 near the inlet valve 170, and is used to control the connection or disconnection between the inlet valve 170 and the cylinder 210. The outlet valve lever 200 is elastically disposed on the lower clamping plate. 5 is located near the outlet valve 180 and is used to control the connection or disconnection between the outlet valve 180 and the cylinder 210. The cylinder 210 is fixedly installed on the lower clamping plate 5. The cutter assembly 11 includes a first cutter 113, a cutter bracket 114, and a seventh elastic member. One end of the seventh elastic member is installed on one end of the cutter bracket 114, and the other end is installed on the cylinder 210. One end of the first cutter 113 is fixedly installed on the other end of the cutter bracket 114.

[0069] The lower clamping plate 5 has mounting slots at both ends for accommodating the intake valve rod 190 and the exhaust valve rod 200, respectively. The lower mold base 2 has a venting groove 21. The intake valve 170 and the exhaust valve 180 are connected to the venting groove 21 through the mounting slots. The venting groove 21 is connected to the intake end 214 of the cylinder 210. The intake valve rod 190 includes a first rod 191 and a fifth elastic element. One end of the fifth elastic element is installed at the bottom of the rod 191, and the other end is installed at the bottom of the mounting groove. The first rod 191 has a first plug for blocking the intake port of the intake valve 170. The exhaust valve rod 200 includes a second rod 211 and a sixth elastic element. One end of the sixth elastic element is installed at the bottom of the second rod 211, and the other end is installed at the bottom of the mounting groove. The second rod 211 has a second plug for blocking the exhaust port of the exhaust valve 180. Each pressure block is radially opposite to the intake valve pressure rod 190 and the exhaust valve pressure rod 200, and the cylinder 210 has an exhaust port 213.

[0070] The implementation principle of Example 2 is as follows: When it is necessary to die-cut a sheet-like object, when an external force (e.g., using a stamping machine) presses the upper die base 1, the upper die base 1 drives the stripper plate assembly 8 on the die 7 to move towards the punch 6 through the upper clamping plate 4 until the stripper plate 83 and the sheet-like object to be cut on the punch 6 come into contact with each other. At this time, under the action of the external force, the upper die base 1 continues to descend. Under the combined force of the upper die base 1 and the punch 6, the first elastic element 81 is compressed, and the stripper plate 83 moves away from the lower die base 2 until the stripper plate 83 is at least partially accommodated in the receiving groove 71. At this time, the die-cutting is completed under the combined action of the punch 6 and the die 7, and the shape and size of the slice are adapted to the shape and size of the stripper plate 83.

[0071] During the initial die-cutting process, air enters through the air inlet valve 170. The first plug on the first pressure rod 191 blocks the air inlet of the air inlet valve 170, and the second plug on the second pressure rod 211 is separated from the air outlet of the air outlet valve 180. As the upper clamping plate 4 moves towards the lower clamping plate 5, the pressure blocks squeeze the first pressure rod 191 and the second pressure rod 211, causing them to move towards the lower die base 2. This separates the first plug from the air inlet of the air inlet valve 170, and the second plug blocks the air outlet of the air outlet valve 180. Gas is sequentially passed through the mounting groove and the venting groove 21, entering the cylinder 210 from the air inlet. This drives the cutter support 114, causing the first cutter 113 to move towards the waste slices 12. Several ejector pins 91 and / or several air blowing holes 92 compress the waste slices 12 to the cutting edge of the first cutter 113. Under the combined action of the first cutter 113 and the punch 6, the waste slices are cut. After cutting, several waste slices 12 fall into the discharge port 14 and are removed by the waste removal mechanism. At this time, the fifth and sixth elastic elements are in a state of compression deformation, and the seventh elastic element is in a state of tension deformation. During the cutting process, the cutter support 114 gradually separates from the vent port 213 on the cylinder 210, and the gas in the cylinder 210 is discharged from the vent port 213. After cutting, the seventh elastic element drives the cutter support 114 and the first cutter 113 to return to their initial positions.

[0072] After the external force is removed, the third elastic element 32 of the first guide post assembly 3 needs to return to its initial state. Then, during the process of restoring deformation, it pushes the first guide sleeve 33 back to its initial position, thereby driving the upper mold base 1, the upper clamping plate 4 and the die 7 to move away from the punch 6 and initially return to their initial positions. At this time, the pressure block separates from the first pressure rod 191 and the second pressure rod 211 respectively. The fifth elastic element and the sixth elastic element drive the first pressure rod 191 and the second pressure rod 211 back to their initial positions respectively.

[0073] Example 3

[0074] Reference Figure 10 , Figure 11 A stamping die includes an upper die base 1, a lower die base 2, at least two sets of first guide post assemblies 3, an upper clamping plate 4, a lower clamping plate 5, a punch 6, a die 7, several pressure blocks, a stripper plate assembly 8, a scrap drive component 9, and at least two sets of cutter assemblies 11; the cutter assembly 11 includes a second cutter and a third cutter 115.

[0075] The first guide post assembly 3 has its two ends fixedly connected to the bottom surface of the upper mold base 1 and the top surface of the lower mold base 2, respectively. The die 6 is installed on the bottom surface of the upper mold base 1, the punch 6 is installed on the top surface of the lower mold base 2 and is radially opposite to the die 6. The pressure block is installed on the bottom surface of the upper clamping plate 5 and is radially opposite to the cutter drive assembly 10. The unloading plate assembly 8 is radially elastically disposed in the die 7. The waste material drive component 9 is disposed on the die 7 along the edge of the unloading plate assembly 8. The bottom of the second cutter is installed on the die 7. The bottom of the third cutter 115 is installed on the lower clamping plate 5. The second cutter and the third cutter 115 are radially opposite to each other. The lower clamping plate 5 and the lower mold base 2 are sequentially provided with discharge ports 14 that are radially opposite to the slicing waste 12.

[0076] The implementation principle of Example 3 is as follows: When it is necessary to die-cut a sheet-like object, when an external force (e.g., using a stamping machine) presses the upper die base 1, the upper die base 1 drives the stripper plate assembly 8 on the die 7 to move towards the punch 6 through the upper clamping plate 4 until the stripper plate 83 and the sheet-like object to be cut on the punch 6 come into contact with each other. At this time, under the action of the external force, the upper die base 1 continues to descend. Under the combined force of the upper die base 1 and the punch 6, the first elastic element 81 is compressed, and the stripper plate 83 moves away from the lower die base 2 until the stripper plate 83 is at least partially accommodated in the receiving groove 71. At this time, the die-cutting is completed under the combined action of the punch 6 and the die 7, and the shape and size of the slice are adapted to the shape and size of the stripper plate 83.

[0077] Driven by the die 7, the second cutter moves toward the third cutter 115. Under the combined action of the second cutter and the third cutter 115, the slicing waste 12 is cut. After the cutting is completed, several slicing waste 12 fall into the discharge port 14 and are removed by the waste removal mechanism.

[0078] Furthermore, the discharge port 14 has a front baffle plate 15 at one end near the punch 6, and a rear baffle plate 16 is disposed on the discharge port 14 opposite to the front baffle plate 15. The front baffle plate 15 has an inclined structure, and under the combined action of the front baffle plate 15 and the rear baffle plate 16, it is convenient for a number of slicing waste materials 12 to fall into the discharge port 14.

[0079] Reference Figure 12 This application also discloses a die-cutting method for a stamping die.

[0080] Place the sheet-shaped workpiece onto the punch 6;

[0081] The external force presses the upper mold base 1 and drives the upper clamping plate 4 and the die 7 to move toward the punch 6 in sequence, until the unloading plate assembly 8 and the sheet-shaped workpiece to be cut, the pressure block and the cutter drive assembly 10 come into contact with each other.

[0082] The die 7 continues to move toward the punch 6 until the die 7 and the punch 6 work together to slice the sheet-like object to be sliced; the waste drive 9 drives the sliced ​​waste 12 toward the cutter assembly 11 until it comes into contact with the blade of the cutter assembly 11.

[0083] The cutter drive assembly 10 controls the cutter assembly 11 to cut the slicing waste 12;

[0084] The cut waste material 12 flows out from the discharge port 14;

[0085] During the springback process, the first guide post assembly 3 drives the stripper plate assembly 8 to separate from the slice through the die 7;

[0086] Remove the cut slice from the punch 6.

[0087] The implementation principle of the die-cutting method of a stamping die in this application embodiment is as follows: the sheet-shaped workpiece to be cut is placed on the punch 6, the upper die base 1 is pressed by external force and the upper clamping plate 4 and the die 7 are moved toward the punch 6 in sequence through the upper die base 1. The sheet-shaped workpiece is sliced ​​by the joint action of the punch 6 and the die 7. The cutter drive assembly 10 drives the cutter assembly 11 to cut the slicing waste 12, and the slicing waste 12 is recycled by the discharge port 14. The sheet-shaped workpiece to be cut in the whole cutting process is cut into single slices, and the whole roll cutting method is not used. Therefore, there is no need to consider the problem of the waste edge being broken during the winding process. After each slice is cut, a slicing waste edge of less than 1 mm is reserved, which helps to improve the utilization rate of the sliced ​​material.

[0088] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stamping die, characterized in that: Includes an upper mold base (1), a lower mold base (2), at least two sets of first guide post assemblies (3), an upper clamping plate (4), a lower clamping plate (5), a punch (6), a die (7), several pressure blocks, a stripper plate assembly (8), a scrap drive component (9), at least two sets of cutter drive assemblies (10), and at least two sets of cutter assemblies (11). The first guide post assembly (3) is fixedly connected at both ends to the bottom surface of the upper mold base (1) and the top surface of the lower mold base (2), respectively. The die (7) is installed on the bottom surface of the upper mold base (1), the punch (6) is installed on the top surface of the lower mold base (2) and is radially opposite to the die (7). The pressure block is installed on the bottom surface of the upper clamping plate (4) and is radially opposite to the cutter drive assembly (10). The unloading plate assembly (8) is radially elastically disposed on the die (7). 7) Inside, the waste material driving component (9) is disposed on the die (7) along the edge of the unloading plate assembly (8), the cutter driving component (10) is mounted on the lower clamping plate (5) for driving the cutter assembly (11) to approach or move away from the slicing waste (12), one end of the cutter assembly (11) is disposed on the cutter driving component (10), and the lower clamping plate (5) and the lower die base (2) are sequentially provided with discharge ports (14) that are radially opposite to the slicing waste (12). The cutter drive assembly (10) includes a base (110), a cover plate (120), at least two guide members (130), at least two second elastic members (140), a slide plate (150), and a slider (160). One end of each of the two guide members (130) is fixedly installed on the base (110), and the other end is slidably installed on the cover plate (120). The second elastic member (140) is sleeved on the guide member (130) and its two ends abut against the base (110) and the cover plate (120) respectively. The slide plate (150) is slidably installed on the base (110) in the horizontal direction. One end of the slider (160) is fixedly installed on the cover plate (120), and the other end is slidably installed inside the slide plate (150) at a preset angle. The cutter assembly (11) includes an upper cutter (111) and a lower cutter (112). One end of the upper cutter (111) is mounted on the base (110), and one end of the lower cutter (112) is mounted on the slide plate (150).

2. The stamping die according to claim 1, characterized in that: The stripper plate assembly (8) includes a first elastic element (81), a support column (82), and a stripper plate (83). One end of the first elastic element (81) is mounted on the upper mold base (1), and the other end is mounted on one end of the support column (82). The other end of the support column (82) is mounted on the stripper plate (83) to drive the stripper plate (83) to move radially within the die (7).

3. The stamping die according to claim 2, characterized in that: The waste drive component (9) is configured with a plurality of ejector pins (91), which are disposed on the die cavity (7) along the edge of the unloading plate (83).

4. The stamping die according to claim 2, characterized in that: The waste drive component (9) is configured with a plurality of air holes (92), which are opened on the die (7) along the edge of the unloading plate (83).

5. The stamping die according to claim 1, characterized in that: The discharge port (14) has a front baffle plate (15) at one end near the punch (6), and a rear baffle plate (16) is provided on the discharge port (14) opposite to the front baffle plate (15).

6. A die-cutting method for a stamping die, applied to the stamping die of claim 1, characterized in that: Place the sheet-shaped workpiece onto the punch; External force presses the upper mold base and drives the upper clamping plate and the die to move toward the punch direction in sequence, until the stripper plate assembly and the sheet-shaped workpiece to be cut, the pressure block and the cutter drive assembly come into contact with each other; The die continues to move toward the punch until the slicing of the sheet-like object is completed under the combined action of the die and the punch. The waste drive unit drives the sliced ​​waste to move towards the cutter assembly until it comes into contact with the blade of the cutter assembly; The cutter drive assembly controls the cutter assembly to cut the slicing waste; The cut waste slices flow out from the discharge port; During the springback process, the first guide post assembly drives the die to separate from the slicer through the stripper plate assembly; Remove the cut slices from the punch.

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