A stripper for a progressive die

Abstract

This application provides a waste removal device for progressive dies, including a pushing unit and a collecting unit. The pushing unit includes a blanking base and multiple sets of pushing mechanisms. Multiple receiving platforms are arranged on the blanking base, each located below a stamping station. The height of each receiving platform gradually decreases from one end of the blanking base to the other, with the lowest receiving platform designated as the end receiving platform. The collecting unit is located on the outer side of the end receiving platform, away from adjacent receiving platforms, and is used to collect stamping waste. Each set of pushing mechanisms is correspondingly arranged on each receiving platform. Each pushing mechanism includes a pushing component slidably disposed on the receiving platform and a linkage component connecting the pushing component. The linkage component is intermittently linked with the feeding mechanism to achieve automatic pushing of the stamping waste by the pushing component. Based on this, stamping waste can be automatically collected in the collecting unit, and the vibration experienced by the stamping frame can be reduced, maintaining good stamping accuracy of the sheet metal parts.

Description

Technical Field

[0001] This application relates to the field of mold design, and in particular to a waste removal device for progressive dies. Background Technology

[0002] Progressive dies, also known as multi-station progressive dies, continuous dies, or skip-step dies, are dies that divide a single die set into several equally spaced stations. Each station houses one or more basic stamping operations, which are sequentially linked to complete different processing steps. This means a series of different stamping operations are completed within one stroke of the press machine. After one stroke, the press machine's feeding mechanism moves the material forward at a fixed step distance. In this way, multiple operations can be completed on a single die set, typically including punching, blanking, bending, trimming, and deep drawing.

[0003] When progressive dies stamp sheet metal parts, the resulting stamping waste needs to be collected. Typically, a collection device is installed below the press frame. A current technology discloses a collection device including a receiving platform and a collection box located outside the receiving platform. The height of the receiving platform gradually slopes from one end to the other, and a vibration motor is installed inside the receiving platform. When the stamping waste falls onto the receiving platform, the vibration of the motor causes the waste to move downwards along the slope of the receiving platform, finally falling into the collection box for recycling and reuse.

[0004] When the progressive die is working, the pushing mechanism sequentially pushes each sheet metal part forward and into the station of each stamping process. The stamping process requires high positional accuracy of the sheet metal parts. The related technical solutions mentioned above use a vibration motor to automatically collect stamping waste. However, the vibration of the vibration motor is easily transmitted to the stamping frame. After being vibrated, the sheet metal parts may shift position or even fall off the stamping station, which will affect the stamping accuracy of the sheet metal parts and needs to be improved. Summary of the Invention

[0005] Based on this, this application provides a waste removal device for progressive dies, which can automatically collect stamping waste into a collection unit and reduce the vibration of the stamping frame, so as to maintain good stamping accuracy of sheet metal parts.

[0006] The waste removal device for progressive dies provided in this application adopts the following technical solution:

[0007] A waste removal device for a progressive die, the progressive die including a punch press frame, a die assembly for stamping sheet metal parts, and a feeding mechanism for pushing sheet metal parts, the punch press frame having multiple stamping stations arranged at equal intervals;

[0008] The waste discharge device includes a pushing unit and a collection unit. The pushing unit includes a material dropping frame and multiple pushing mechanisms located on the material dropping frame. The material dropping frame is provided with multiple receiving platforms for receiving stamping waste, and each receiving platform is located below each stamping station.

[0009] The height of each receiving platform gradually decreases from one end of the material dropping frame to the other end. The receiving platform with the lowest height is designated as the end receiving platform. The collection unit is located on the outside of the end receiving platform away from the adjacent receiving platform and is used to collect stamping waste.

[0010] Each group of pushing mechanisms is respectively set on each receiving platform; the pushing mechanism includes a pushing component that is slidably set on the receiving platform and a linkage component for connecting the pushing component. The linkage component and the feeding mechanism are intermittently linked to realize the automatic pushing of the stamping waste by the pushing component.

[0011] By adopting the above technical solution, and by correspondingly setting each receiving platform below each stamping station, the stamping waste generated during stamping can fall onto the top surface of the receiving platform. Due to the intermittent linkage between the linkage component and the feeding mechanism, in a certain state, the linkage component and the feeding mechanism are linked together. When the feeding mechanism moves, it can force the linkage component to move, thereby driving the pushing component to move towards the end receiving platform. After multiple pushing operations, the stamping waste finally falls into the collection unit, realizing the automatic collection of stamping waste and facilitating its subsequent recycling. Furthermore, this application achieves automatic collection of stamping waste through mechanical structure design, avoiding the need for vibrating motors, servo motors, and other power components that easily cause vibration. This effectively reduces the vibration experienced by the stamping frame, ensuring that the sheet metal parts maintain good stamping forming accuracy.

[0012] Optionally, the feeding mechanism includes a sliding seat slidably mounted on the punch press frame and a first driving member for driving the sliding seat to slide.

[0013] The sliding seat is rotatably connected to two rotating arm plates, and a second driving member is connected between the two rotating arm plates to make them rotate in opposite directions.

[0014] A clamping block is fixed at the end of the rotating arm plate away from the second driving member. When the second driving member moves, the two clamping blocks move closer to each other to clamp the sheet metal part together.

[0015] All linkage components are connected to a connecting column, and the top of the connecting column is provided with a limiting part; the bottom surface of the rotating arm plate located below is provided with a limiting groove. When the feeding mechanism finishes feeding and the two rotating arm plates are reset to the limit separation state, the limiting part and the limiting groove are engaged to limit the movement.

[0016] By adopting the above technical solution, the two rotating arm plates are forced to rotate in opposite directions by the second driving component, so that the two clamping blocks can clamp and fix the sheet metal part together; then the sliding seat is forced to move forward by the first driving component, which can bring the sheet metal part into the next stamping station; during this process, the limiting groove of the lower rotating arm plate can be separated from the limiting part of the connecting column, that is, the pushing component can maintain its original position during the forward pushing of the sheet metal part, and will not push the stamping waste, which is conducive to the smooth movement of the sheet metal part and reduces the possibility of positioning displacement of the sheet metal part due to interference, runout and other situations.

[0017] When the sheet metal part feeding is completed, the second drive component resets, forcing the two rotating arm plates to rotate in opposite directions. The limiting groove of the lower rotating arm plate can engage with the limiting part of the connecting column to achieve intermittent linkage between the linkage component and the feeding mechanism. Then, when the first drive component resets, the feeding mechanism can drive each pushing component to move towards the end receiving platform through the connecting column and the linkage component, and can collect the stamping waste on each receiving platform in the collection unit.

[0018] Optionally, the side of the receiving platform is provided with a movable groove, and the pushing component is movably installed in the movable groove; the bottom surface of the pushing component is in contact with the top surface of the adjacent receiving platform.

[0019] The pushing component has a first sliding column on its side, and the linkage component is connected to the first sliding column; the unloading base has a first sliding groove on its side that is adapted to the sliding of the first sliding column, and the first sliding groove is horizontally set.

[0020] A first spring is provided between the first sliding column and the first sliding groove to force the linkage component to be fully embedded in the movable groove under normal conditions; when the feeding mechanism finishes feeding and the sliding seat is reset, the linkage component drives the pushing component to move towards the end receiving platform.

[0021] By adopting the above technical solution, the elastic force generated by the first spring acting on the first sliding column can keep the linkage component fully embedded in the movable slot, so that the stamping waste can fall smoothly onto the top surface of the receiving platform. When the second drive component resets and the feeding mechanism and linkage component are linked, the feeding mechanism moves, forcing the first sliding column to move along the first sliding groove. The pushing component on the side of the previous receiving platform can leave the movable slot and move against the top surface of the middle receiving platform, thereby pushing the stamping waste on the middle receiving platform and causing it to fall onto the top surface of the next receiving platform. Then, the linkage between the feeding mechanism and linkage component is released, and the pushing component re-enters the movable slot under the elastic force of the first spring, allowing the stamping waste above the pushing component to fall onto the middle receiving platform, thereby realizing the sequential pushing of the stamping waste. Finally, each piece of stamping waste enters the collection unit for collection in sequence.

[0022] Optionally, the linkage component is set as a telescopic structure; the pushing component includes a crossbeam plate and multiple pusher plates fixed to the top surface of the crossbeam plate, the crossbeam plate is movably set in the receiving platform; all pusher plates are equidistantly arranged along the length direction of the crossbeam plate, and the top surface of the receiving platform is provided with multiple clearance grooves, each pusher plate correspondingly passing through each clearance groove.

[0023] A second sliding column is fixed to the side end of the crossbeam plate, and a second sliding groove is provided on the side of the unloading base to adapt to the sliding movement of the second sliding column; wherein, the second sliding groove includes a pushing section and a resetting section connected end to end, the pushing section is horizontally arranged; the resetting section is arc-shaped and located below the pushing section;

[0024] When the first drive unit is reset, the linkage component drives the second slide column to move along the push section. At this time, the push plate is higher than the top surface of the receiving platform and is used to push the stamping waste towards the direction of the end receiving platform.

[0025] A reset component is also connected between the linkage component and the unloading base frame. When the second drive component resets and the limiting part and the limiting groove disengage from each other, the reset component forces the second sliding column to move along the reset section. At this time, the pusher plate can retract into the clearance groove.

[0026] By adopting the above technical solution, in the initial state, the pusher plate can pass through the clearance groove and protrude from the top surface of the receiving platform. When the second drive component resets and the feeding mechanism and the linkage component are linked, the feeding mechanism moves, forcing the second slide column to move along the pushing section. Each pusher plate can abut against the stamping waste and push the stamping waste to the next receiving platform. When the second drive component resets, the second slide column can be located at the transition position between the pushing section and the reset section. Then, the linkage between the feeding mechanism and the linkage component is released, and the second slide column can be reset along the reset section under the action of the reset component. At this time, the pusher plate can retract into the clearance groove to avoid the stamping waste pushed from the previous receiving platform, ensuring the smooth and repeated pushing operation.

[0027] Optionally, a guide assembly is provided at the transition position between the pushing section and the reset section to guide the second slide column to move in one direction. The guide assembly includes a movable stop block movably embedded in the inner side wall of the second slide groove and a second spring for forcing the movable stop block to partially extend into the second slide groove. The side of the movable stop block is provided with an inclined surface, which is used to make the second slide column abut against the inclined surface and force the movable stop block to move inward when the linkage component drives the second slide column to move in one direction.

[0028] By adopting the above technical solution, the movable stop is movably embedded in the inner wall of the second slide groove. Under the elastic force of the second spring, the movable stop is partially located within the second slide groove. When the second slide column moves unidirectionally within the second slide groove, it can abut against the inclined surface and push the movable stop outward, so that the second slide column can pass unidirectionally through the transition area between the pushing section and the reset section. Then, under the elastic force of the second spring, the movable stop can return to the state of being partially located within the second slide groove, which can limit the second slide column, so that the second stop can only pass through the reset section and then return to the pushing section, so that the pushing plate can smoothly avoid the stamping waste pushed from the previous receiving platform.

[0029] Optionally, the reset component is a tension spring, with one end of the tension spring hooked and fixed to the linkage component, and the other end of the tension spring hooked and fixed to the material dropping base; the tension spring is used to force the second slide column to stop at the end of the pushing section away from the end receiving platform.

[0030] By adopting the above technical solution, and by setting a tension spring connected between the linkage component and the unloading base, the tension spring can always generate an elastic force acting on the second sliding column, so that after the pusher plate completes the pushing of the stamping waste, it can automatically return to the end of the pusher section away from the end receiving platform by the elastic force of the tension spring, so as to facilitate the smooth progress of the next pushing operation.

[0031] Optionally, sealing strips are bonded to the two opposite sidewalls of the relief groove, and there is a moving area between the two sealing strips for the pusher plate to pass through.

[0032] By adopting the above technical solution, the sealing strip is used to block the relief groove, reducing the occurrence of stamping waste getting stuck in the relief groove when it falls onto the receiving platform, or reducing the occurrence of stamping waste falling into the receiving platform through the relief groove, thus ensuring the smooth progress of the pushing operation.

[0033] Optionally, the linkage component includes a first rod, a second rod, and a third spring. The first rod is connected to a second sliding column, and the second rod is connected to a connecting column. The first rod is movably sleeved on the second rod, and the third spring is provided between the first rod and the second rod to force the first rod to move away from the second rod.

[0034] By adopting the above technical solution, by setting the first rod to be movably sleeved on the second rod, the length extension and retraction of the linkage component can be realized; the setting of the third spring can always generate elastic force acting on the first rod and the second slide column, so that when the second slide column moves along the pushing section and enters the transition position between the pushing section and the reset section, it can be subjected to the elastic force component of the third spring, and enter the interior of the reset section more smoothly, ensuring that the second slide column moves circumferentially back and forth in the second slide groove.

[0035] Optionally, the side of the unloading base frame is provided with a through mounting groove. The collection unit includes a movable platform that is slidably disposed in the mounting groove and two collection boxes that are detachably installed on the top of the movable platform. The collection boxes are open at the top. Each collection box is provided with a magnetic attraction component on its side. When the magnetic attraction component of the collection box is magnetically attracted to the unloading base frame, the collection box is matched and located in the mounting groove, while the other collection box is completely located outside the unloading base frame.

[0036] By adopting the above technical solution, two collection boxes are set up to collect stamping waste separately. When the collection box is firmly fixed to the blanking base frame by magnetic attraction, the collection box is matched and located in the mounting slot for collecting stamping waste; the other collection box is completely located outside the blanking base frame. At this time, the operator can easily disassemble the collection box and collect the stamping waste collected in it. This allows for convenient collection of stamping waste while the progressive die is working normally, without the need to stop the machine, which helps to maintain good stamping processing efficiency of the progressive die.

[0037] Optionally, the top surface of the mobile platform is vertically fixed with a pin, and the collection box is provided with a socket that is compatible with the pin.

[0038] By adopting the above technical solution, and by fitting the collection box's socket into the pin of the mobile platform, the collection box can be stably installed on the mobile platform under its own weight, thereby achieving rapid installation between the collection box and the mobile platform.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. Through intermittent linkage between the linkage component and the feeding mechanism, when the second drive component is reset, the linkage component and the feeding mechanism are linked together. When the feeding mechanism is activated, it can drive the pushing component to move towards the end receiving platform. After multiple pushing, the stamping waste finally falls into the collection unit, which can realize the automatic collection of stamping waste and facilitate the subsequent recycling of stamping waste.

[0041] 2. The automatic collection of stamping waste is achieved through the mechanical structure, which avoids the need for power components such as vibration motors and servo motors that are prone to vibration. This can effectively reduce the vibration of the stamping frame and maintain good stamping accuracy of sheet metal parts.

[0042] 3. By setting up two collection boxes to collect stamping waste separately, when one collection box is in use, the operator can disassemble the other collection box and collect the stamping waste inside without stopping the machine, which helps to maintain good stamping efficiency of progressive die. Attached Figure Description

[0043] Figure 1This is a schematic diagram of the overall structure of the progressive die and waste discharge device in Example 1;

[0044] Figure 2 yes Figure 1 The enlarged view at point A mainly shows the structure of the feeding mechanism;

[0045] Figure 3 This is a schematic diagram of the feeding mechanism in Example 1;

[0046] Figure 4 This is a schematic diagram of the overall structure of the waste discharge device in Example 1;

[0047] Figure 5 This is a schematic diagram of the recursive unit in Embodiment 1;

[0048] Figure 6 This is a partial structural diagram of the feeding mechanism and connecting column in Embodiment 1;

[0049] Figure 7 This is a schematic diagram of the structure of the collection box and the mobile platform in Example 1;

[0050] Figure 8 This is a schematic diagram of the recursive unit in Embodiment 2;

[0051] Figure 9 This is a schematic diagram of the pushing component, the linkage component, and the connecting column in Embodiment 2;

[0052] Figure 10 This is a partial sectional view of the unloading base frame in Embodiment 2, mainly showing the structure of the second chute and the guide assembly.

[0053] Explanation of reference numerals in the attached drawings: 1. Punch press frame; 2. Die assembly; 21. Stamping die; 3. Feeding mechanism; 31. Sliding seat; 32. First driving component; 33. Rotating arm plate; 331. Limiting groove; 34. Clamping block; 35. Second driving component; 4. Collection unit; 41. Moving platform; 411. Pin; 42. Collection box; 421. Stop; 422. Insertion hole; 423. Abutment plate; 424. Magnetic suction component;

[0054] 5. Pushing unit; 6. Unloading base frame; 61. Receiving platform; 611. End receiving platform; 612. Movable groove; 613. Clearance groove; 614. Sealing strip; 62. Side plate; 63. First slide groove; 64. Second slide groove; 641. Pushing section; 642. Reset section; 65. Guide assembly; 651. Second spring; 652. Moving block; 66. Mounting groove;

[0055] 7. Pushing component; 71. First sliding column; 72. First spring; 73. Crossbeam plate; 74. Push plate; 75. Second sliding column; 8. Linkage component; 81. First rod; 82. Second rod; 83. Third spring; 84. Tension spring; 9. Connecting column; 91. Limiting part. Detailed Implementation

[0056] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0057] Example 1

[0058] This application discloses a waste discharge device for a progressive die.

[0059] Reference Figure 1 A waste discharge device for a progressive die is installed on the progressive die; wherein the progressive die includes a punch press frame 1, a die assembly 2 for stamping sheet metal parts, and a feeding mechanism 3 for pushing sheet metal parts. The die assembly 2 is located above the punch press frame 1; the die assembly 2 has a plurality of stamping dies 21 arranged at equal intervals, and the punch press frame 1 has a plurality of stamping stations, each stamping station being located below a respective stamping die 21; each stamping station has a blanking port, and when the stamping die 21 stamps the sheet metal parts, the stamping waste generated can fall through the blanking port into the waste discharge device below the punch press frame 1.

[0060] Reference Figure 2 The feeding mechanism 3 includes a sliding seat 31, a first driving member 32, a rotating arm plate 33, a clamping block 34, and a second driving member 35. The sliding seat 31 is slidably mounted on the outer side of the punch press frame 1, and the sliding direction of the sliding seat 31 is the same as the length direction of the punch press frame 1. The first driving member 32 is a cylinder, and the cylinder body of the first driving member 32 is fixed to the punch press frame 1. The output end of the first driving member 32 is connected to the sliding seat 31. In this embodiment, the first driving member 32 is in its normally retracted state.

[0061] Two rotating arm plates 33 are provided, which are symmetrically arranged and rotatably connected to the side of the sliding seat 31 away from the punch press frame 1. The rotation connection point between the rotating arm plate 33 and the sliding seat 31 is located in the middle of the rotating arm plate 33. The second driving member 35 is also a cylinder. The cylinder body of the second driving member 35 is rotatably connected to the end of one of the rotating arm plates 33, and the output end of the second driving member 35 is rotatably connected to the end of the other rotating arm plate 33. The end of the rotating arm plate 33 away from the second driving member 35 is set as the free end. In this embodiment, the second driving member 35 is in the normal retracted state, at which time the two free ends are in the extreme farthest position.

[0062] Simultaneously refer to Figure 3There are two clamping blocks 34, each of which is fixedly connected to the free end of the rotating arm plate 33. The two clamping blocks 34 are located on the upper and lower sides of the stamping station, respectively. When the second driving member 35 is activated, the two rotating arm plates 33 rotate towards each other, which allows the two clamping blocks 34 to come closer to each other and clamp the sheet metal part together. Then, the first driving member 32 is activated, which can drive the sheet metal part to the next stamping station, thereby completing different stamping processes on the sheet metal part in sequence.

[0063] Back Figure 1 The waste discharge device includes a collection unit 4 for collecting stamping waste and a pushing unit 5 for pushing the stamping waste to the collection unit 4; the pushing unit 5 includes a dropping base 6 and multiple pushing mechanisms, wherein the dropping base 6 is fixedly installed below the punch press frame 1. See details below. Figure 4 The unloading base frame 6 includes two side plates 62 spaced apart and multiple receiving platforms 61 fixed between the two side plates 62. The number of receiving platforms 61 is equal to the number of stamping stations. Each receiving platform 61 is located below each stamping station and is used to receive stamping waste generated during the stamping operation.

[0064] The top surface of the receiving platform 61 is horizontally set, and the height of each receiving platform 61 gradually decreases from one end to the other end along the length of the dropping frame 6. The receiving platform 61 with the lowest height is set as the end receiving platform 611. The collection unit 4 is located on the outside of the end receiving platform 611 away from the adjacent receiving platform 61, and is used to collect stamping waste.

[0065] The number of pushing mechanisms is equal to the number of receiving platforms 61, with each group of pushing mechanisms corresponding to each receiving platform 61. Each pushing mechanism includes a pushing component 7 and a linkage component 8. The pushing component 7 is a rectangular shell with an opening at the bottom. A movable groove 612 is provided on the side of the receiving platform 61, and the pushing component 7 is movably installed inside the movable groove 612. It should be noted that the cross-sectional dimensions of the pushing component 7 are the same as those of the movable groove 612, allowing the pushing component 7 to fully enter the movable groove 612, facilitating the smooth falling of stamping waste onto the receiving platform 61. Furthermore, the bottom surface of the pushing component 7 is in contact with the top surface of the adjacent receiving platform 61 on the outside, ensuring smooth pushing of the stamping waste during movement.

[0066] Simultaneously refer to Figure 5The pushing component 7 has an integrally formed first sliding post 71 on each of its two end faces, and two side plates 62 each have a first sliding groove 63. The first sliding groove 63 is horizontally arranged, and the first sliding post 71 can pass through the first sliding groove 63 and slide freely inside the first sliding groove 63. In addition, a first spring 72 is installed between the first sliding post 71 and the first sliding groove 63. The first spring 72 is located on the side of the first sliding post 71 near the end receiving platform 611, and can always generate an elastic force acting on the first sliding post 71, forcing the pushing component 7 to be fully inserted into the movable groove 612 under normal conditions.

[0067] Reference Figure 5 , Figure 6 In this embodiment, the linkage component 8 is a straight connecting rod, and one end of the linkage component 8 is fixedly connected to the first sliding column 71. The linkage components 8 of each group of pushing mechanisms are connected to a connecting column 9. The top of the connecting column 9 is provided with an integrally formed limiting part 91, and the bottom surface of the rotating arm plate 33 located below is provided with a limiting groove 331. Through the cooperation between the limiting part 91 and the limiting groove 331, the linkage component 8 and the feeding mechanism 3 can be intermittently linked to achieve the automatic pushing of the stamping waste by the pushing component 7.

[0068] Specifically, after the second drive member 35 is activated and the two clamping blocks 34 clamp and fix the sheet metal part, the first drive member 32 is activated to push the sheet metal part to the next stamping station. At this time, the limiting groove 331 of the lower rotating arm plate 33 and the limiting part 91 of the connecting column 9 are separated, and the pushing part 7 is held inside the movable groove 612 under the elastic force of the first spring 72. Then, the second drive member 35 resets and forces the two rotating arm plates 33 to rotate in opposite directions. At this time, the limiting groove 331 of the lower rotating arm plate 33 can match and engage with the limiting part 91 of the connecting column 9. The first drive member 32 resets and causes the sliding seat 31 to retract horizontally, which can drive each linkage part 8 to move simultaneously, thereby forcing each pushing part 7 to move together towards the end receiving table 611, so as to push the stamping waste backward in sequence. Finally, the stamping waste can fall into the collection unit 4 for collection.

[0069] Back Figure 4 The material unloading base 6 has a through mounting groove 66 on its side, and the collection groove is located outside the tail receiving platform 61; the collection unit 4 includes a moving platform 41 that is slidably disposed inside the mounting groove 66 and two collection boxes 42 that are detachably installed on the top of the moving platform 41. See details. Figure 7 The top surface of the mobile platform 41 is vertically fixed with a pin 411, while the bottom outer edge of the collection box 42 is provided with an integrally formed baffle 421, and the baffle 421 has a vertical through hole 422. By passing the pin 411 through the hole 422, the collection box 42 can be stably fixed to the mobile platform 41 under its own weight, so as to realize the detachable installation between the collection box 42 and the mobile platform 41.

[0070] The collection box 42 has an open top, and an integrally formed abutment plate 423 is provided on the side of the collection box 42. A magnetic suction component 424 is embedded in the side of the abutment plate 423; (See also...) Figure 4 The blanking base 6 is made of steel. By magnetically attaching the abutment plate 423 to the blanking base 6, the moving platform 41 can be kept fixed. At this time, the collection box 42 where the magnetic attachment component 424 is located can be completely located within the mounting slot 66 to facilitate the collection of stamping waste. The other collection box 42 can be completely located outside the blanking base 6 to facilitate the recycling of the stamping waste collected in the collection box 42. By alternating the use of the two collection boxes 42, stamping waste can be recycled without stopping the machine, so that the progressive die maintains good stamping processing efficiency.

[0071] The implementation principle of Embodiment 1 of this application is as follows:

[0072] Sheet metal parts are sequentially conveyed to each stamping station via a conveying mechanism. After the stamping die 21 above the stamping station stamps the sheet metal parts, the resulting stamping waste can fall through the blanking port onto the corresponding receiving table 61 below the press frame 1. When the feeding is completed and the second drive component 35 is reset, the first drive component 32 can be forced to move when it is reset by the locking and limiting between the limiting groove 331 of the lower rotating arm plate 33 and the limiting part 91 of the connecting column 9, thereby driving the pushing component to move towards the end receiving table 611. After multiple pushing, the stamping waste finally falls into the collection unit 4, which can realize the automatic collection of stamping waste. Furthermore, the mechanical structure design can effectively reduce the vibration of the press frame, so that the sheet metal parts maintain good stamping accuracy.

[0073] Example 2

[0074] This application discloses a waste discharge device for a progressive die.

[0075] Reference Figure 8 This application discloses a waste discharge device for a progressive die. The remaining components are the same as those in Embodiment 1, and will not be described in detail here. The difference from Embodiment 1 is that the linkage component 8 in this embodiment is a telescopic structure. The linkage component 8 includes a first rod 81, a second rod 82, and a third spring 83. The first rod 81 is movably sleeved on the second rod 82. The first rod 81 is fixedly connected to the pushing component 7, and the second rod 82 is fixedly connected to the connecting column 9. The third spring 83 is connected between the first rod 81 and the second rod 82, and the third spring 83 can always generate an elastic force acting on the first rod 81, forcing the first rod 81 to move away from the second rod 82 under normal conditions.

[0076] In addition, refer to Figure 9 In this embodiment, the pushing component 7 includes a crossbeam plate 73 and a plurality of pusher plates 74 fixed to the top surface of the crossbeam plate 73. The crossbeam plate 73 extends along the length of the receiving platform 61 and passes through the two opposite sides of the receiving platform 61. The receiving platform 61 is hollow inside, allowing the crossbeam plate 73 to move freely within the receiving platform 61. All pusher plates 74 are equidistantly arranged along the length of the crossbeam plate 73. The top surface of the receiving platform 61 is provided with a plurality of clearance grooves 613. Each pusher plate 74 can pass through each clearance groove 613 and be exposed on the upper surface of the receiving platform 61. Each clearance groove 613 has a sealing strip 614 bonded to its two opposite sidewalls. The two sealing strips 614 normally abut against each other and form a moving area through which the pusher plate 74 passes.

[0077] Reference Figure 8 , Figure 10 The two end faces of the crossbeam plate 73 are respectively provided with integrally formed second sliding columns 75, and the two side plates 62 are respectively provided with second sliding grooves 64. The second sliding columns 75 can pass through the second sliding grooves 64 and slide freely inside the second sliding grooves 64, so as to push the stamping waste with the pusher plate 74. Specifically, the second sliding groove 64 includes a push section 641 connected end to end and a reset section 642. The push section 641 is horizontally arranged. When the first drive member 32 is reset, the linkage member 8 can drive the second sliding column 75 to move along the push section 641. At this time, each pusher plate 74 can push the stamping waste to move it towards the end receiving platform 611.

[0078] Reference Figure 10 The reset section 642 is located below the pusher section 641, and the reset section 642 is arc-shaped. It should be noted that the reset section 642 is preferably arc-shaped, and the two transition positions between the reset section 642 and the pusher section 641 are smooth transitions. Furthermore, each of the two transition positions between the reset section 642 and the pusher section 641 is provided with a movable groove, and each movable groove is equipped with a guide component 65 for guiding the unidirectional movement of the second sliding column 75.

[0079] Specifically, the guide component 65 includes a movable stop 652 and a second spring 651. The movable spring is movably embedded in the movable groove. The second spring 651 is disposed in the movable groove, with one end connected to the movable stop 652 and the other end connected to the inner sidewall of the movable groove. The second spring 651 can always generate an elastic force acting on the movable stop 652, thereby forcing the movable stop 652 to be partially located in the second slide groove 64 under normal conditions, and in the transition position between the pushing section 641 and the reset section 642. In addition, the side of the movable stop 652 is also provided with an inclined surface 6511.

[0080] After the first driving member 32 moves to push the sheet metal part forward, when the second driving member 35 resets, the limiting groove 331 of the lower rotating arm plate 33 matches and engages with the limiting part 91 of the connecting column 9 to limit the movement. The reset of the first driving member 32 can drive the second sliding column 75 to move unidirectionally through the linkage component 8, thereby pushing the stamping waste on the surface of the receiving table 61 to the next receiving table 61. When the second sliding column 75 moves to the transition position between the pushing section 641 and the reset section 642, the second sliding column 75 can abut against the inclined surface 6511, and with the help of the elastic force of the second spring 651, it can force the moving block 652 to move into the movable groove, so that the second sliding column 75 can pass smoothly through the moving block 652. Then, under the action of the elastic force of the second spring 651, the moving block 652 re-enters the second sliding groove 64 to limit the reverse movement of the second sliding column 75.

[0081] Back Figure 9 Each linkage component 8 is connected to a reset component between itself and the material dropping base 6. In this embodiment, the reset component is a tension spring 84. One end of the tension spring 84 is hooked and fixed to the first rod 81, and the other end of the tension spring 84 is hooked and fixed to the material dropping base 6. The tension spring 84 can always generate a pulling force acting on the linkage component 8, so that the second sliding column 75 normally stays at the end of the pushing section 641 away from the end receiving platform 611.

[0082] After the second slide column 75 moves to the end of the push section 641 near the end receiving platform 611, the tension spring 84 is in a stretched state. When the second drive component 35 restarts and clamps the conveyed sheet metal part, the lower rotating arm plate 33 disengages from the connecting column 9. Under the elastic force of the tension spring 84, the linkage component 8 can automatically move away from the end receiving platform 611, thereby causing the second slide column 75 to return to the end of the push section 641 away from the end receiving platform 611, so as to facilitate the smooth progress of the next stamping waste pushing operation.

[0083] The implementation principle of Embodiment 2 of this application is as follows:

[0084] When feeding is completed and the second drive member 35 resets, the first drive member 32 resets by engaging the limiting groove 331 of the lower rotating arm plate 33 with the limiting part 91 of the connecting column 9, which forces the linkage member 8 to move when it resets. This causes the second sliding column 75 and the pushing member 7 to move along the pushing section 641, and also scrapes the stamping waste onto the next receiving platform 61. After multiple pushes, the stamping waste finally falls into the collection unit 4, achieving automatic collection of the stamping waste. When the pushing member 7 of this application resets, it avoids the stamping waste pushed from the previous receiving platform 61, which is conducive to the smooth reset of the pushing member 7 and can reduce the impact of small debris generated by stamping on the smooth movement of the pushing member 7, ensuring the smooth progress of the pushing operation.

[0085] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waste removal device for a progressive die, the progressive die comprising a punch press frame (1), a die assembly (2) for stamping sheet metal parts, and a feeding mechanism (3) for pushing sheet metal parts, wherein the punch press frame (1) has a plurality of stamping stations arranged at equal intervals; characterized in that: The waste discharge device includes a pushing unit (5) and a collection unit (4). The pushing unit (5) includes a material dropping frame (6) and multiple pushing mechanisms provided on the material dropping frame (6). The material dropping frame (6) is provided with multiple receiving platforms (61) for receiving stamping waste. Each receiving platform (61) is located below each stamping station. The height of each receiving platform (61) gradually decreases from one end of the material dropping frame (6) to the other end. The receiving platform (61) with the lowest height is set as the end receiving platform (611). The collection unit (4) is located on the outside of the end receiving platform (611) away from the adjacent receiving platform (61) and is used to collect stamping waste. Each of the pushing mechanisms is respectively set on each receiving platform (61); the pushing mechanism includes a pushing component (7) slidably set on the receiving platform (61) and a linkage component (8) for connecting the pushing component (7). The linkage component (8) is intermittently linked with the feeding mechanism (3) to realize the automatic pushing of the stamping waste by the pushing component (7). The feeding mechanism (3) includes a sliding seat (31) slidably mounted on the punch press frame (1) and a first driving member (32) for driving the sliding seat (31) to slide. The sliding seat (31) is rotatably connected to two rotating arm plates (33), and a second driving member (35) for rotating the two rotating arm plates (33) in opposite directions is connected between them. A clamping block (34) is fixed at one end of the rotating arm plate (33) away from the second driving member (35). When the second driving member (35) moves, the two clamping blocks (34) move closer to each other to clamp the sheet metal part together. All linkage components (8) are connected to a connecting column (9), and the top of the connecting column (9) is provided with a limiting part (91); the bottom surface of the rotating arm plate (33) located below is provided with a limiting groove (331). When the feeding mechanism (3) finishes feeding and the two rotating arm plates (33) are reset to the limit separation state, the limiting part (91) and the limiting groove (331) are locked together for a limiting position.

2. The waste discharge device according to claim 1, characterized in that: The receiving platform (61) has a movable groove (612) on its side, and the pushing component (7) is movably installed in the movable groove (612); the bottom surface of the pushing component (7) is in contact with the top surface of the adjacent receiving platform (61); The pushing component (7) has a first sliding column (71) on its side, and the linkage component (8) is connected to the first sliding column (71); the material dropping frame (6) has a first sliding groove (63) on its side that is adapted to slide the first sliding column (71), and the first sliding groove (63) is horizontally arranged; A first spring (72) is provided between the first sliding column (71) and the first sliding groove (63) to force the pushing component (7) to be fully embedded in the movable groove (612) under normal conditions; when the feeding mechanism (3) finishes feeding and the sliding seat (31) is reset, the linkage component (8) drives the pushing component (7) to move towards the end receiving platform (611).

3. The waste discharge device according to claim 1, characterized in that: The linkage component (8) is a telescopic structure; the pushing component (7) includes a crossbeam plate (73) and multiple pusher plates (74) fixed to the top surface of the crossbeam plate (73). The crossbeam plate (73) is movably arranged in the receiving platform (61). All pusher plates (74) are equidistantly arranged along the length direction of the crossbeam plate (73), and the top surface of the receiving platform (61) is provided with multiple clearance grooves (613). Each pusher plate (74) is respectively inserted into each clearance groove (613). The side end of the crossbeam plate (73) is fixed with a second sliding column (75), and the side of the material dropping frame (6) is provided with a second sliding groove (64) that is adapted to slide with the second sliding column (75); wherein, the second sliding groove (64) includes a pushing section (641) and a resetting section (642) connected end to end, the pushing section (641) is horizontally arranged; the resetting section (642) is arc-shaped and located below the pushing section (641); When the first driving member (32) is reset, the linkage member (8) drives the second sliding column (75) to move along the pushing section (641). At this time, the pushing plate (74) is higher than the top surface of the receiving platform (61) and is used to push the stamping waste to move towards the end receiving platform (611). A reset component is also connected between the linkage component (8) and the material dropping base (6). When the second drive component (35) is reset and the limiting part (91) and the limiting groove (331) are separated from each other, the reset component forces the second sliding column (75) to move along the reset section (642). At this time, the pusher plate (74) can retract into the relief groove (613).

4. The waste discharge device according to claim 3, characterized in that: The transition position between the pushing section (641) and the reset section (642) is provided with a guide component (65) for guiding the second slide column (75) to move in one direction. The guide component (65) includes a movable stop (652) movably embedded in the inner wall of the second slide groove (64) and a second spring (651) for forcing the movable stop (652) to partially extend into the second slide groove (64). The side of the movable stop (652) is provided with an inclined surface (6511) for causing the second slide column (75) to abut against the inclined surface (6511) and forcing the movable stop (652) to move inward when the linkage component (8) drives the second slide column (75) to move in one direction.

5. The waste discharge device according to claim 3, characterized in that: The reset component is a tension spring (84), one end of which is hooked and fixed to the linkage component (8), and the other end of which is hooked and fixed to the material dropping base (6); the tension spring (84) is used to force the second slide column (75) to stay at the end of the pushing section (641) away from the end receiving platform (611).

6. The waste discharge device according to claim 3, characterized in that: The two opposite sidewalls of the relief groove (613) are respectively bonded with sealing strips (614), and there is a moving area between the two sealing strips (614) for the pusher plate (74) to pass through.

7. The waste discharge device according to claim 3, characterized in that: The linkage component (8) includes a first rod (81), a second rod (82), and a third spring (83). The first rod (81) is connected to the second sliding column (75), and the second rod (82) is connected to the connecting column (9). The first rod (81) is movably sleeved on the second rod (82), and the third spring (83) is located between the first rod (81) and the second rod (82) to force the first rod (81) to move away from the second rod (82).

8. The waste discharge device according to claim 1, characterized in that: The side of the unloading base (6) is provided with a through mounting groove (66). The collection unit (4) includes a moving platform (41) that is slidably disposed in the mounting groove (66) and two collection boxes (42) that are detachably installed on the top of the moving platform (41). The collection boxes (42) are open at the top. Each collection box (42) is provided with a magnetic suction component (424) on its side. When the magnetic suction component (424) of the collection box (42) is magnetically attracted to the unloading base (6), the collection box (42) is matched and located in the mounting groove (66), while the other collection box (42) is completely located outside the unloading base (6).

9. The waste discharge device according to claim 8, characterized in that: The top surface of the mobile platform (41) is vertically fixed with a pin (411), and the collection box (42) is provided with a socket (422) that is compatible with the pin (411).

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