Metal part stamping die and continuous machining system thereof

Abstract

The invention discloses a metal part stamping die and a continuous machining system thereof.The metal part stamping die comprises an upper die plate, a movable die plate and a lower die plate, the movable die plate is located between the upper die plate and the lower die plate and slides along a first guide supporting column, a material belt is punched and blanked between a punch on the upper die plate and a die sleeve on the lower die plate, and a workpiece is obtained; the lower die plate is provided with a supporting block, the supporting block is used for filling an inner hole of the die sleeve so as to support a material belt above the die sleeve, the supporting block is axially limited when the material belt is punched, the supporting block can axially move when a workpiece is blanked, and the continuous punching and blanking process is achieved. According to the continuous machining system, the material belt and the punch can be supported during punching, pulling of the punch to the material belt is reduced, the production stability and the product quality are guaranteed, and the continuous machining system is used for achieving continuous feeding and discharging of the material belt at the position of the die and achieving continuous punching and blanking machining at the position of the die.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a metal part stamping die and a continuous processing system thereof. Background Art

[0002] Strip stamping dies are key process equipment used in the electronics, automotive and other industries for the efficient production of precision parts. They process continuous metal strips into the required shape and size through a series of stamping and punching steps. Strip punching technology is to use a punch to punch and cut on the strip, so that the workpiece is separated from the strip in the punching direction to obtain the workpiece. During the die punching operation, since the punching action requires a large force to cut the material, this may cause undesirable displacement or deformation of the strip, especially in the application scenario of thin materials. This pulling may not only cause the finished product size to exceed the tolerance range, but also affect the positioning accuracy of subsequent processes, and even cause scratches or tears on the material surface, reducing the qualified rate of the final product. Summary of the invention

[0003] In view of the situation that the punch of the prior art punching die pulls the material strip during punching, the present invention proposes a metal part stamping die and a continuous processing system thereof, which optimizes the stamping die structure and reduces the pulling effect of the punch on the material strip during punching, thereby ensuring production stability and product quality.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A metal stamping die comprises an upper die plate, a movable die plate and a lower die plate, wherein the movable die plate is located between the upper die plate and the lower die plate and slides along a first guide pillar, the first guide pillar is fixedly located between the upper die plate and the lower die plate and the axis is vertically arranged, a die sleeve is arranged on the lower die plate, a punch is arranged on the upper die plate, the position of the punch corresponds to the die sleeve, the outer edge of the punch matches the inner hole of the die sleeve, and the punch punches and cuts the material strip above the die sleeve. A support block is arranged on the lower die plate, the support block matches the inner hole of the die sleeve, and the support block is used to fill the inner hole of the die sleeve to support the material strip above the die sleeve.

[0006] A support sleeve is rotatably connected to the bottom of the support block, and the support sleeve is slidably connected to the lower template in the moving direction of the punch. A limit plate is fixedly connected to the side of the support sleeve, and a limit sleeve is fixedly provided on the lower template. The limit sleeve is located below the die sleeve, and a limit groove and a first channel are provided on the limit sleeve. The limit groove is used to axially limit the limit plate when punching the material strip, keep the support block on the support sleeve located inside the die sleeve and form a support for the punch, and the first channel is used to accommodate the passage of the limit plate during blanking. After the punching is completed, the limit plate enters the first channel from the limit groove through a rotation action to release the axial limit, and the support block and the support sleeve realize the blanking of the workpiece through axial movement.

[0007] Preferably, a torsion elastic member is provided between the support sleeve and the support block. When the support sleeve is located at the upper limit position, the lower plane of the limit plate corresponds to the bottom position of the limit groove, and the torsion elastic member keeps the limit plate in the limit groove of the limit sleeve through torsion force. The upper template is provided with a push rod, which is slidably connected to the upper template in a direction parallel to the punching direction of the punch. The push rod pushes the limit plate by sliding relative to the upper template and forms a rotational action of the limit plate. The limit plate enters the first channel from the limit groove through the rotational action.

[0008] Preferably, the push rod passes through the upper template and the movable template, a first limit block is arranged above the upper template, a fourth elastic member is arranged between the first limit block and the upper template, and a second limit block is arranged below the upper template. The lower template is provided with a guide hole above the limit groove of the support sleeve, and the guide hole is used to accommodate the push rod to pass through so as to keep the bottom of the push rod able to reach the limit sleeve.

[0009] Preferably, the top of the upper template is fixedly connected with a first functional cylinder, which is used to drive the punch to move to achieve the punching action. The punch is connected to the working end of the first functional cylinder through a connecting rod. A limiting sleeve is fixedly provided on the connecting rod. The part of the connecting rod between the limiting sleeve and the connecting seat is sleeved with a movable sleeve and a third elastic member. The third elastic member is located between the movable sleeve and the connecting seat. A push plate is provided on the movable sleeve, and the push plate is used to push the push rod to achieve the movement of the push rod relative to the upper template.

[0010] Preferably, the lower template is provided with a blanking cavity below the mold sleeve, a second guide pillar is provided inside the blanking cavity, the second guide pillar is slidably connected with the support sleeve, a second elastic member is provided between the second guide pillar and the support sleeve, and the second elastic member is used to push the support sleeve so that the support sleeve is located at the upper limit position.

[0011] Preferably, a first magnetic block is disposed inside the support sleeve, and a second magnetic block is disposed inside the second guide pillar, and the first magnetic block and the second magnetic block are attracted to each other to form a stop of the support sleeve at the lower limit position.

[0012] Preferably, the support sleeve and the second guide pillar are both located inside the blanking cavity, and a blowing pipe is provided on one side of the blanking cavity, and the blowing pipe is used to blow out airflow to blow the workpiece off the support block.

[0013] The present invention also proposes a continuous processing system including the above-mentioned metal part stamping die, wherein the lower template is fixedly connected to the base, and a discharge hopper and a collection box for collecting workpieces are provided on one side of the base, and the discharge hopper is used to connect the feed end of the collection box and the discharge port of the blanking cavity.

[0014] Preferably, the base is also provided with an unwinding member for unwinding the material strip and a rewinding member for recovering the material strip, the metal part stamping die is located between the unwinding member and the rewinding member, and the material strip is recovered by the rewinding member after being punched and cut by the metal part stamping die from the unwinding member.

[0015] The beneficial effects of the present invention are:

[0016] 1. This metal stamping die is used for punching and cutting of metal strips. A support block is arranged inside the punching and cutting die sleeve to support the strip and the punch during punching and cutting. The strip does not move in the punching direction during punching and cutting, which reduces the pulling of the punch on the strip and ensures the stability of production and product quality. After punching and cutting, the support block is released by rotating the support sleeve, so that the support block can leave the die sleeve with the punch to realize workpiece unloading. After the punch is reset, the support block can also be reset and limit, so that the continuity of the punching and cutting process is maintained under the condition of supporting punching and cutting, and the processing progress is not affected.

[0017] 2. This continuous processing system is provided with discharging parts and feeding parts for the material strip, so as to realize continuous feeding and discharging of the material strip at the mold, and realize continuous punching and blanking processing of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the front side of the metal stamping die;

[0019] Figure 2 It is a structural schematic diagram of the side surface of the metal part stamping die;

[0020] Figure 3 This is a schematic diagram of the structure of the support sleeve of the metal part stamping die;

[0021] Figure 4 This is a schematic diagram of the structure of the metal part stamping die support sleeve from a top view;

[0022] Figure 5 This is a schematic diagram of the structure of the metal part stamping die during blanking;

[0023] Figure 6 This is a schematic diagram of the structure of the continuous processing system.

[0024] In the figure: 1, base; 2, upper template; 3, movable template; 4, lower template; 5, punch; 6, support block; 7, support sleeve; 8, push rod; 9, material belt; 10, unwinding member; 11, winding member; 12, limit roller group; 13, discharge hopper; 14, collection box; 15, second guide pillar; 16, second elastic member; 17, limit sleeve; 18, guide block; 19, first functional cylinder; 20, blowing pipe;

[0025] 21. First guiding pillar; 22. First elastic member; 23. Second functional cylinder; 31. Accommodating passage; 41. Support plate; 42. Die sleeve; 43. Guiding hole; 51. Connecting rod; 52. Movable sleeve; 53. Pushing plate; 54. Limiting sleeve; 55. Third elastic member; 71. Limiting plate; 711. First inclined surface; 81. First limiting block; 82. Fourth elastic member; 83. Second limiting block; 84. Second inclined surface; 151. Photosensitive sensor; 152. Connecting bracket; 171. Limiting groove; 172. First passage; 181. Second passage; 191. Connecting seat. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Embodiment 1

[0028] Referring to Figure 1-2 , a metal part stamping die includes an upper template 2, a movable template 3 and a lower template 4. The upper template 2, the movable template 3 and the lower template 4 are arranged parallel to each other in the horizontal direction, and the movable template 3 is located between the upper template 2 and the lower template 4. A first guiding pillar 21 is further arranged between the upper template 2 and the lower template 4. The first guiding pillar 21 is fixedly located between the upper template 2 and the lower template 4 and its axis is vertically arranged. The number of the first guiding pillars 21 is four. The movable template 3 is slidably sleeved on the first guiding pillars 21. A first elastic member 22 is also sleeved on the first guiding pillars 21. The first elastic member 22 is sleeved between the movable template 3 and the lower template 4. The stretching force of the first elastic member 22 makes the movable template 3 abut against the upper template 2. A second functional cylinder 23 is arranged on the upper template 2. The second functional cylinder 23 is fixedly connected to the upper template 2, and the working end of the second functional cylinder 23 is fixedly connected to the movable template 3. The axis of the second functional cylinder 23 is vertically arranged. The second functional cylinder 23 is used to drive the movable template 3 to move in the vertical direction.

[0029] Furthermore, a support plate 41 is arranged on the lower template 4. The support plate 41 is used to support the strip 9. A die sleeve 42 is arranged on the support plate 41. The die sleeve 42 is used for punching and blanking. C-shaped strip limiting card slots with upward openings are arranged at both ends of the lower template 4. The strip 9 enters the lower template 4 from the strip limiting card slot at the first end of the lower template 4, passes through the support plate 41 and the die sleeve 42, and then leaves the lower template 4 from the strip limiting card slot at the second end.

[0030] The upper mold plate 2 is provided with a punch 5, and the position of the punch 5 corresponds to the position of the die sleeve 42. The outer edge of the punch 5 matches the inner hole of the die sleeve 42. When the material strip 9 passes through the die sleeve 42, the punch 5 can pass through the die sleeve 42 from above the die sleeve 42 to achieve punching and blanking of the material strip 9. The upper mold plate 2 is provided with a first functional cylinder 19, which is fixedly connected to the upper mold plate 2, and the punch 5 is connected to the working end of the first functional cylinder 19. The axis of the first functional cylinder 19 is vertically arranged, and the first functional cylinder 19 is used to drive the punch 5 to move in the vertical direction to achieve punching.

[0031] The working end of the first functional cylinder 19 is provided with a connecting seat 191, and the connecting seat 191 is connected to the punch 5 through a connecting rod 51. The upper end of the connecting rod 51 is fixedly connected to the connecting seat 191, and the lower end of the connecting rod 51 passes through the upper template 2 and extends to the bottom of the upper template 2. The movable template 3 is provided with a receiving channel 31 passing through the movable template 3, and the receiving channel 31 is used to accommodate the punch 5 to stay or move.

[0032] Furthermore, the lower mold plate 4 is provided with a support block 6 and a support sleeve 7, and the support block 6 and the support sleeve 7 are coaxially arranged and rotatably connected. The support block 6 matches the inner hole of the die sleeve 42, and when the material strip 9 is punched, the support block 6 is located in the inner hole of the die sleeve 42, and the support block 6 fills the inner hole of the die sleeve 42 to support the material strip 9 above the die sleeve 42. When punching, the material strip 9 does not move in the punching direction, reducing the pulling of the punch 5 on the material strip 9.

[0033] The lower template 4 is provided with a blanking cavity below the die sleeve 42, and the support sleeve 7 is located inside the blanking cavity. A second guide pillar 15 is also provided inside the blanking cavity, and the lower part of the second guide pillar 15 is fixedly connected to the lower template 4 through a connecting bracket 152. The second guide pillar 15 is coaxially arranged with the support sleeve 7, and the upper part of the second guide pillar 15 is sleeved with the support sleeve 7. The support sleeve 7 is slidably connected with the second guide pillar 15, and the support sleeve 7 can slide in the moving direction of the punch 5. A second elastic member 16 is provided between the top surface of the second guide pillar 15 and the support sleeve 7, and the second elastic member 16 is used to push the support sleeve 7 so that the support sleeve 7 is located at the upper limit position. When the support sleeve 7 is located at the upper limit position, the support block 6 is located in the inner hole of the die sleeve 42, and the upper surface of the support block 6 and the upper surface of the die sleeve 42 are located in the same plane.

[0034] The lower mold plate 4 is fixedly provided with a limiting sleeve 17, and the limiting sleeve 17 is located below the mold sleeve 42. Figure 3 and Figure 4 The limiting sleeve 17 is provided with a limiting groove 171 and a first channel 172 . The first channel 172 axially penetrates the limiting sleeve 17 . The limiting groove 171 is located at the top of the limiting sleeve 17 . One side of the limiting sleeve 17 is connected to the first channel 172 .

[0035] The support sleeve 7 is coaxially arranged with the limiting sleeve 17, the support sleeve 7 is located inside the limiting sleeve 17, and two limiting plates 71 are fixedly connected to the side of the support sleeve 7, and the two limiting plates 71 are symmetrically arranged. When the support sleeve 7 is located at the upper limit position, the limiting plate 71 is located at the limiting groove 171 of the limiting sleeve 17, and the limiting groove 171 is used to axially limit the limiting plate 71, so as to keep the support sleeve 7 at the upper limit position, that is, to keep the support block 6 at the inner hole of the die sleeve 42, so that the support block 6 has an axial supporting force when punching the material strip 9.

[0036] When the material strip 9 is punched and cut, the support sleeve 7 rotates, and the limiting plate 71 enters the first channel 172 from the limiting groove 171 of the limiting sleeve 17, releasing the axial limit of the support sleeve 7, and the limiting plate 71 can pass through the first channel 172. Figure 5 The support block 6 and the limit plate 71 can continue to move downward under the push of the punch 5, and the workpiece enters the blanking cavity between the punch 5 and the support block 6 to realize the blanking of the workpiece.

[0037] A torsion spring is arranged between the support sleeve 7 and the support block 6. When the support sleeve 7 is located at the upper limit position, the lower plane of the limit plate 71 corresponds to the bottom position of the limit groove 171, and the torsion spring keeps the limit plate 71 located in the limit groove 171 of the limit sleeve 17 through torsion force. The upper template 2 is provided with a push rod 8, which is slidably connected to the upper template 2. The push rod 8 pushes the limit plate 71 by sliding relative to the upper template 2, so that the limit plate 71 generates a rotational action, and the limit plate 71 enters the first channel 172 from the limit groove 171 through the rotational action.

[0038] Specifically, refer to Figure 2 and Figure 3 The lower end of the push rod 8 passes through the upper template 2 and the movable template 3, and the lower template 4 is provided with a guide hole 43, which is used to accommodate the push rod 8 to pass through, and the guide hole 43 is located above the limiting groove 171 of the limiting sleeve 17. The push rod 8 is provided with a first limiting block 81 above the upper template 2, and the push rod 8 is provided with a second limiting block 83 below the upper template 2. A fourth elastic member 82 is provided between the first limiting block 81 and the upper template 2. The extension force of the fourth elastic member 82 makes the push rod 8 located in the first position, and the lower end of the push rod 8 is located above the limiting sleeve 17.

[0039] The lower end of the push rod 8 has a second inclined surface 84, and the top of the limit plate 71 is provided with a first inclined surface 711. When the second inclined surface 84 at the lower end of the push rod 8 contacts the first inclined surface 711 of the limit plate 71, the push rod 8 moves downward to push the limit plate 71 to move in the horizontal direction, so that the support sleeve 7 overcomes the elastic force of the torsion spring and produces a rotational motion. The rotational motion causes the limit plate 71 to enter the first channel 172 from the limit groove 171.

[0040] Furthermore, a limiting sleeve 54 is fixedly provided on the connecting rod 51, and a movable sleeve 52 and a third elastic member 55 are sleeved on the portion of the connecting rod 51 between the limiting sleeve 54 and the connecting seat 191, and the third elastic member 55 is located between the movable sleeve 52 and the connecting seat 191. A push plate 53 is provided on the movable sleeve 52, one end of the push plate 53 is fixedly connected to the movable sleeve 52, and the other end of the push plate 53 extends to the top of the push rod 8. When the first functional cylinder 19 pushes the punch 5 downward, at the beginning, the movable sleeve 52, the push plate 53 and the punch 5 move synchronously, and the push plate 53 pushes the push rod 8 downward, and the push rod 8 moves downward relative to the upper template 2 until the lower end of the push rod 8 contacts the limiting groove 171, and the push rod 8 stops moving. At this time, the limiting plate 71 enters the first channel 172 from the limiting groove 171, and the punch 5 continues to move downward, and the workpiece, the punch 5, the support block 6 and the support sleeve 7 continue to move downward to realize the blanking of the workpiece.

[0041] A guide block 18 is provided below the limiting sleeve 17, and a second channel 181 is provided on the guide block 18, and the second channel 181 is connected with the first channel 172. When the support sleeve 7 moves downward, the first channel 172 and the second channel 181 guide the limiting plate 71 in turn. When the support sleeve 7 is located at the lower limit position, the limiting plate 71 is located inside the second channel 181. When the support sleeve 7 returns to the upper limit position from the lower limit position, the limiting plate 71 enters the first channel 172 from the second channel 181, and then returns to the inside of the limiting groove 171 under the action of the torsion spring, thereby realizing the axial limiting of the support sleeve 7.

[0042] Furthermore, a first magnetic block is arranged inside the support sleeve 7, and the first magnetic block is a permanent magnet. A second magnetic block is arranged inside the second guide pillar 15, and the second magnetic block is an electromagnet wound by a coil. A photosensitive sensor 151 is arranged on the second guide pillar 15, and a light source is arranged inside the blanking cavity. When the support sleeve 7 is located at the lower limit position, the support sleeve 7 blocks the photosensitive sensor 151, and the photosensitive sensor 151 forms a signal according to the change of the light source, so that the second magnetic block on the second guide pillar 15 is energized, and the second magnetic block can adsorb the first magnetic block on the support sleeve 7, so that the support sleeve 7 stays at the lower limit position. A delay switch is arranged on the circuit of the second magnetic block, and the circuit of the second magnetic block can be delayed after being connected to maintain the adsorption force of the second magnetic block for a certain time. The delay can be set to 2 seconds to avoid the support sleeve 7 and the punch 5 returning to their positions at the same time. The punch 5 and the support sleeve 7 return to their positions in sequence, giving the workpiece space and time for blanking.

[0043] Furthermore, a blowing pipe 20 is provided on one side of the blanking cavity of the lower template 4 , and the blowing pipe 20 is connected to a blowing port of a blower. The blowing pipe 20 can blow out an airflow, and the airflow can blow the workpiece off the supporting block 6 .

[0044] The metal stamping die in this embodiment includes the following working processes:

[0045] Step 1: The material strip 9 enters the lower template 4 from the material strip limiting slot at the first end of the lower template 4, passes through the support plate 41 and the mold sleeve 42, and leaves the lower template 4 from the material strip limiting slot at the second end;

[0046] At this time, the movable template 3 is attached to the upper template 2, the punch 5 is located in the accommodating channel 31 of the movable template 3, the support sleeve 7 is located at the upper limit position, the limiting plate 71 is located in the limiting groove 171 of the limiting sleeve 17, and the support block 6 is located inside the die sleeve 42 to fill the inner hole of the die sleeve 42;

[0047] Step 2: The second functional cylinder 23 moves downward with the movable template 3 to apply pressure to position the material strip 9, and then the first functional cylinder 19 drives the punch 5 to move downward, the movable sleeve 52 and the push plate 53 move synchronously with the punch 5, the push plate 53 pushes the push rod 8 downward, the push rod 8 moves downward relative to the upper template 2, and the push rod 8 pushes the limit plate 71 to move in the horizontal direction, so that the support sleeve 7 overcomes the elastic force of the torsion spring to produce a rotation action, and the rotation action causes the limit plate 71 to enter the first channel 172 from the limit groove 171. At the same time, the punch 5 punches the material strip 9 on the die sleeve 42. Due to the support of the support block 6, the material strip 9 does not move in the punching direction during punching, which greatly reduces the pulling effect of the punch 5 on the material strip 9;

[0048] Step 3: After punching, the workpiece is obtained on the die sleeve 42, and the workpiece has been disconnected from the material belt 9. The first functional cylinder 19 continues to drive the punch 5 to move downward. At this time, the lower end of the push rod 8 contacts the limit groove 171, and the push rod 8, the movable sleeve 52 and the push plate 53 stop moving. Figure 5 , the punch 5 continues to move downward, the workpiece, the punch 5, the support block 6 and the support sleeve 7 continue to move downward, and the workpiece arrives at the blanking cavity;

[0049] Step 4: When the support sleeve 7 is at the lower limit position, the first functional cylinder 19 moves upward with the punch 5. At this time, the support sleeve 7 blocks the photosensor 151. The photosensor 151 forms a signal according to the change of the light source, so that the second magnetic block on the second guide pillar 15 is energized. The second magnetic block can absorb the first magnetic block on the support sleeve 7, so that the support sleeve 7 stays at the lower limit position, the punch 5 is separated from the support block 6, and the air blower 20 blows out air to blow the workpiece off the support block 6, so as to realize the blanking of the workpiece;

[0050] Step 5: the punch 5 returns to its original position, the push rod 8 also returns to its original position, and after the support sleeve 7 is adsorbed for a period of time, the second magnetic block is powered off and loses its adsorption force, and returns to the upper limit position under the action of the second elastic member 16, and the support block 6 returns to the inside of the die sleeve 42 to fill the inner hole of the die sleeve 42. During this process, the limiting plate 71 passes through the second channel 181 and the first channel 172 in sequence and returns to the top of the limiting sleeve 17, and returns to the limiting groove 171 under the action of the torsion elastic member, so that the limiting sleeve 17 again limits the axial position of the support sleeve 7;

[0051] Step 6: The second functional cylinder 23 moves the movable template 3 upward, and the material belt 9 moves relative to the lower template 4. Steps 2 to 5 are repeated to perform the punching and blanking of the next workpiece.

[0052] The metal part stamping die in this embodiment is used for the punching processing of the metal strip 9. A support block 6 is arranged inside the punching die sleeve 42 to support the strip 9 and the punch 5 during punching. During punching, the strip 9 does not move in the punching direction, reducing the pulling of the punch 5 on the strip 9, ensuring the stability of production and product quality. After punching, the support block 6 is released from the limit by rotating the support sleeve 7, so that the support block 6 can follow the punch 5 to leave the die sleeve 42 to realize the workpiece unloading. After the punch 5 is reset, the support block 6 can also be reset and limit, maintaining the continuity of the punching and blanking process under the condition of supporting the punching, without affecting the processing progress, and achieving high processing efficiency.

[0053] Example 2

[0054] The present invention also provides a continuous processing system, including the metal stamping die in embodiment 1. Figure 6 The continuous processing system includes a base 1 and a support frame fixed on the base 1, a lower template 4 is fixedly connected to the base 1, and an upper template 2 is fixedly installed on the support frame.

[0055] A discharge hopper 13 and a collection box 14 for collecting workpieces are provided on one side of the base 1. The discharge hopper 13 is used to connect the feed end of the collection box 14 and the discharge port of the blanking cavity. After the workpiece is dropped, it can enter the collection box 14 from the blanking cavity of the lower template 4, which is convenient for collection in the collection box 14.

[0056] The continuous processing system is also provided with an unwinding member 10 for unwinding the material strip 9 and a rewinding member 11 for recovering the material strip 9, and the unwinding member 10 and the rewinding member 11 are installed on a support frame. The metal part stamping die is located between the unwinding member 10 and the rewinding member 11. Two limiting roller groups 12 are provided on the base 1, one limiting roller group 12 is located between the unwinding member 10 and the metal part stamping die, and the other limiting roller group 12 is located between the rewinding member 11 and the metal part stamping die. The limiting roller group 12 is composed of two guide rollers distributed up and down, and the material strip 9 passes between the two guide rollers, and the guide rollers limit the material strip 9.

[0057] The unwinding member 10 includes an unwinding roller and a first motor for driving the unwinding roller to rotate. The unprocessed material strip 9 is wound around the unwinding roller, and the first motor drives the unwinding roller to rotate to unwind the material strip 9. The rewinding member 11 includes a rewinding roller and a second motor for driving the rewinding roller to rotate. The processed material strip 9 is wound around the rewinding roller, and the second motor drives the rewinding roller to rotate to recycle the material strip 9.

[0058] In this embodiment, the material strip 9 of the continuous processing system is collected by the winding member 11 after being punched and blanked by the metal stamping die from the unwinding member 10, so as to realize the continuous feeding, punching and discharging of the material strip 9.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal stamping die, comprising an upper die plate, a movable die plate and a lower die plate, wherein the movable die plate is located between the upper die plate and the lower die plate and slides along a first guide pillar, wherein the first guide pillar is fixedly located between the upper die plate and the lower die plate and the axis is vertically arranged, wherein a die sleeve is arranged on the lower die plate, wherein a punch is arranged on the upper die plate, wherein the position of the punch corresponds to that of the die sleeve, wherein the outer edge of the punch matches the inner hole of the die sleeve, and wherein the punch performs blanking and cutting of the material strip above the die sleeve, wherein the punch is characterized in that: The lower template is provided with a support block, the support block matches the inner hole of the mold sleeve, and the support block is used to fill the inner hole of the mold sleeve to support the material strip above the mold sleeve; A support sleeve is rotatably connected to the bottom of the support block, and the support sleeve is slidably connected to the lower template in the moving direction of the punch. The side of the support sleeve is fixedly connected to a limit plate, and the lower template is fixedly provided with a limit sleeve, and the limit sleeve is located below the die sleeve. A limit groove and a first channel are provided on the limit sleeve, and the limit groove is used to axially limit the limit plate when punching the material strip, keep the support block on the support sleeve located inside the die sleeve and form a support for the punch, and the first channel is used to accommodate the passage of the limit plate during blanking, and the limit plate enters the first channel from the limit groove through a rotational action after the punching is completed to release the axial limit, and the support block and the support sleeve realize the blanking of the workpiece through axial movement.

2. The metal stamping die according to claim 1, characterized in that: A torsion elastic member is arranged between the support sleeve and the support block. When the support sleeve is located at the upper limit position, the lower plane of the limit plate corresponds to the bottom position of the limit groove, and the torsion elastic member keeps the limit plate located in the limit groove of the limit sleeve through a torsional force; The upper template is provided with a push rod, which is slidably connected to the upper template in a stamping direction parallel to the punch. The push rod pushes the limit plate and forms a rotational action of the limit plate by sliding relative to the upper template, and the limit plate enters the first channel from the limit groove through the rotational action.

3. The metal stamping die according to claim 2, characterized in that: The push rod is arranged through the upper template and the movable template, the push rod is provided with a first limit block above the upper template, a fourth elastic member is provided between the first limit block and the upper template, and the push rod is provided with a second limit block below the upper template; The lower template is provided with a guide hole above the limiting groove of the support sleeve, and the guide hole is used to accommodate the push rod to pass through so as to ensure that the bottom of the push rod can reach the limiting sleeve.

4. The metal stamping die according to claim 3, characterized in that: The top of the upper template is fixedly connected with a first functional cylinder, which is used to drive the punch to move to achieve punching action. The punch is connected to the working end of the first functional cylinder through a connecting rod, and a limiting sleeve is fixedly provided on the connecting rod. The part of the connecting rod between the limiting sleeve and the connecting seat is sleeved with a movable sleeve and a third elastic member, and the third elastic member is located between the movable sleeve and the connecting seat. A push plate is provided on the movable sleeve, and the push plate is used to push the push rod to achieve the movement of the push rod relative to the upper template.

5. The metal stamping die according to claim 4, characterized in that: The lower template is provided with a blanking cavity below the mold sleeve, and a second guide pillar is provided inside the blanking cavity. The second guide pillar is slidably connected with the support sleeve, and a second elastic member is provided between the second guide pillar and the support sleeve. The second elastic member is used to push the support sleeve so that the support sleeve is located at the upper limit position.

6. The metal stamping die according to claim 5, characterized in that: A first magnetic block is arranged inside the support sleeve, and a second magnetic block is arranged inside the second guide pillar. The first magnetic block and the second magnetic block are attracted to each other to form the support sleeve to stay at the lower limit position.

7. The metal stamping die according to claim 6, characterized in that: The support sleeve and the second guide pillar are both located inside the blanking cavity. A blowing pipe is provided on one side of the blanking cavity, and the blowing pipe is used to blow out airflow to blow the workpiece off the support block.

8. A continuous processing system, characterized in that: It includes the metal stamping die according to claim 7, wherein the lower template is fixedly connected to the base, and a discharge hopper and a collection box for collecting workpieces are provided on one side of the base, and the discharge hopper is used to connect the feed end of the collection box and the discharge port of the blanking cavity.

9. The continuous processing system according to claim 8, characterized in that: The base is also provided with an unwinding member for unwinding the material strip and a rewinding member for recovering the material strip. The metal part stamping die is located between the unwinding member and the rewinding member. The material strip is recovered by the rewinding member after being punched and blanked from the unwinding member through the metal part stamping die.

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