Chip punching die with jacking function

Abstract

The invention discloses a chip punching die with a jacking function, and relates to the technical field of chip punching dies, the chip punching die comprises an upper die and a lower die, a punch is fixed on the upper die, a female die is fixed on the lower die, the lower die is provided with a jacking mechanism, and the jacking mechanism is used for jacking the upper die and the lower die after each time of punching is completed. And the finished product material sheet is ejected upwards and discharged from the upper part of the knife edge. The die is improved for solving the problems that in the prior art, when a chip is punched, a punched finished product is discharged through a blanking hole of a female die, due to the fact that a chip material is thin, the end face of the punched finished product rubs against the inner wall of a knife edge of the female die, and the punched finished product is deformed. Compared with the prior art, the punching device has the advantages that the jacking mechanism is arranged, after punching is completed through the jacking mechanism, a finished product material piece is discharged from the position above a punched hole, the material jacking block supports the position below the finished product material piece, the material piece is pressed through the punch, and the situation that the material piece deforms due to friction with the inner wall of a knife edge is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chip punching dies, in particular to a chip punching dies with a lifting function. Background Art

[0002] In chip production, the chip needs to be punched by a punching die. During the punching work, the chip sheet is generally placed on the lower die, and then the upper die is moved down by the stamping equipment to close the upper and lower die, and then the punch and the blade cooperate with each other to perform the punching work.

[0003] In the prior art, during punching, the punch will punch the punched chip product into the inside of the die cutting edge. Under normal circumstances, the punched product will be discharged through the blanking hole of the die. However, since the chip material is relatively thin, when the chip is discharged through the blanking hole, during the punching movement, after the punch punches the punched product on the sheet, the punched product will move downward inside the die cutting edge with the punch. In this process, since the material is too thin, when the punch presses the punched product downward inside the cutting edge, the end face of the punched product will rub against the inner wall of the die cutting edge, causing the punched product to deform.

[0004] In view of the above technical problems, the present invention discloses a chip punching die with a lifting function. The present invention has the advantages of arranging a lifting mechanism, so that after the punching is completed, the finished sheet can be discharged from above the punching hole through the lifting mechanism, and the lifting block supports the finished sheet under the punch to press the sheet, thereby reducing the deformation of the sheet due to friction with the inner wall of the blade. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a chip punching die with a lifting function to solve the technical problems in the prior art that when punching chips, the punched finished product is discharged through the blanking hole of the die, and the end face of the punched finished product will rub against the inner wall of the die blade due to the thin chip material, which may cause the punched finished product to deform. The present invention has the advantages of arranging a lifting mechanism, so that after the punching is completed, the finished sheet is discharged from the top of the punching hole, and the lifting block supports the finished sheet under the punch to press the sheet together with the punch, thereby reducing the deformation of the sheet due to friction with the inner wall of the blade.

[0006] The present invention is realized by the following technical scheme: The present invention discloses a chip punching die with a lifting function, comprising an upper die and a lower die, wherein the punch is fixed on the upper die, and the concave die is fixed on the lower die, and a lifting mechanism is arranged at the lower die, and the lifting mechanism is used to push up the finished sheet and discharge the sheet from above the knife edge after each punching is completed;

[0007] The lower die comprises a lower die base, a lower pad and a die base, the lower die base, the lower pad and the die base are connected by screws from bottom to top, a die punching hole is provided on the upper part of the die base, and a plurality of die punching holes are provided on the die base, a mounting groove is provided on the upper part of the die base, the mounting groove passes through the upper end surface of the die base, a die insert is slidably inserted in the mounting groove, and the outer wall of the die insert is fitted with the inner wall of the mounting groove, and the die punching hole is provided in the die insert and passes through the upper and lower end surfaces of the die insert;

[0008] A lifting mechanism is provided under each die insert, and the lifting mechanism includes a movable groove, a connecting groove, a movable slide block, a lifting block and an elastic member. The movable groove is opened inside the lower pad, and the movable groove passes through the upper end surface of the lower pad. A connecting groove is opened below the inside of the die seat, and the connecting groove is connected with the die punching hole. The length and width of the movable groove are larger than the length and width of the connecting groove. A movable slide block is longitudinally slidably inserted inside the movable groove. A lifting block is fixedly provided on the upper end surface of the movable slide block, and the top end of the lifting block slides through the connecting groove and extends to the inside of the die punching hole. The outer wall of the lifting block fits and slides with the inner wall of the die punching hole. An elastic member is provided below the movable slide block, and the elastic member is used to make the movable slide block have an upward lifting force.

[0009] Furthermore, the die insert is detachably fixed inside the mounting groove by screws, the upper end surface of the die insert and the upper end surface of the die seat are in the same horizontal plane, and the die seat is provided with positioning pins for placing and positioning the sheet.

[0010] Furthermore, the upper mold includes an upper mold base, an upper pad, a fixed plate and a punch. The upper mold base, the upper pad and the fixed plate are connected from top to bottom in sequence by screws. The punch is installed on the fixed plate. The upper pad is used to support the punch. The punch cooperates with the punching and cutting of the die on the lower mold, and the number of punches is the same as the number of punching holes in the die.

[0011] Furthermore, an outer stripping plate is provided below the fixed plate, and a through hole matching the punch is provided on the outer stripping plate, and the punch is slidably inserted in the through hole, a stripping spring is provided between the outer stripping plate and the fixed plate, and the outer stripping plate is installed below the fixed plate by means of equal height screws, and the lower end face of the outer stripping plate is located below the lower end face of the punch, a guide column is also installed on the fixed plate, and a corresponding guide hole is provided on the die seat, and a makeshift hole for avoiding the positioning pin is provided on the lower end face of the outer stripping plate.

[0012] Furthermore, the upper mold is also provided with a separation mechanism. After the punching is completed, when the upper mold moves up and resets, the separation mechanism sucks the waste piece and moves it to the top of the die seat and away from the die seat. The separation mechanism includes an adsorption component and a positioning component. The adsorption component is used to adsorb the waste piece on the outer stripping plate after the punching is completed. During the punching, when the punch enters the inside of the die punching hole and completes the punching, the positioning component is used to clamp and position the height position of the outer stripping plate.

[0013] Furthermore, a plurality of adsorption components are provided, and the adsorption components are evenly distributed.

[0014] Furthermore, the adsorption component includes a fixed block, a piston cylinder, an air pipe, an air hole, a movable groove, a movable block and a fixed rod. The fixed block is fixedly arranged on the lower end surface of the fixed plate, and a piston cylinder is fixedly arranged below the fixed block. The piston cylinder consists of a cylinder body and an internal piston disk. The piston disk is longitudinally slidably arranged inside the cylinder body, and an air pipe is connected to the lower part of the cylinder body. Air holes are opened at positions corresponding to the outer release plate and the air pipe, and the air holes pass through the upper and lower end surfaces of the outer release plate, the air holes and the air pipe are on the same vertical axis and are connected to each other, and a drawing rod is fixedly connected to the upper end surface of the piston disk, and a movable groove is opened inside the fixed block, and the movable groove passes through the front and rear end surfaces of the fixed block, the top of the drawing rod passes through the top wall of the cylinder body and the bottom wall of the movable groove and extends to the interior of the movable groove, and a movable block is longitudinally slidably arranged inside the movable groove, and one end of the drawing rod located inside the movable groove is fixedly connected to the bottom wall of the movable block, and the front and rear ends of the movable block extend to the front and rear ends of the fixed block respectively, and the front and rear ends of the movable block are fixedly connected to the outer release plate through the fixed rod, and the air pipe is arranged as a telescopic tube.

[0015] The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts.

[0016] Furthermore, the separation between the positioning block and the positioning hole is controlled by an unlocking component. After the upper mold returns to the upper limit position, the unlocking component is used to control the separation of the positioning block from the positioning hole. The unlocking component includes a connecting rope, a connecting ring and a guide wheel. A connecting rope is fixedly connected to one side of the outer baffle plate, and the other end of the connecting rope is connected to the connecting ring. The connecting ring is detachably connected to the die seat. A guide wheel strip is fixedly provided on the side of the fixed plate, and a guide wheel is provided at the bottom end of the guide wheel strip. The guide wheel is used to guide the connecting rope. The length of the connecting rope is configured such that when the upper mold returns to the upper limit position, the connecting rope is tightened and pulls the outer baffle plate outward, and the positioning block is separated from the positioning hole.

[0017] Furthermore, a waste holding assembly is also provided at the lower mold, and the waste holding assembly is configured to include a pad, a slide, a holding frame and an electric push rod. The pad is arranged at the rear of the die seat, and the pad is fixed on the top of the lower die seat by screws, the slide is fixedly arranged above the pad, a holding frame is slidably arranged above the slide, and the holding frame is higher than the die seat, an electric push rod is arranged at the rear end of the holding frame, and the electric push rod is fixedly installed on the slide, and the telescopic axis of the electric push rod is fixedly connected to the outer wall of the holding frame, a mounting plate is fixedly provided on the side of the upper mold seat, a sensor is installed above the mounting plate, a support plate is fixedly provided on the lower mold seat at a position corresponding to the mounting plate, a cross plate is fixedly provided above the support plate, the cross plate is located above the mounting plate, an induction plate is arranged below the cross plate, and the induction plate is longitudinally movably arranged below the cross plate through a sliding shaft, and the induction plate is also located above the mounting plate and the sensor, the induction plate, the cross plate and the mounting plate are all on the same vertical axis, and the sensor is electrically connected to the electric push rod.

[0018] The present invention has the following advantages:

[0019] The present invention is provided with a lifting mechanism, so that in the actual punching movement, the blank is placed on the die seat, and then the upper die moves downward, which causes the punch to move downward, and the punch will be molded together with the die hole to punch the blank, and the punched finished blank will be pressed into the punch hole by the punch, at this time, the ejecting block will also be pressed down by the punch, and the finished blank will be located between the ejecting block and the punch, and will be pressed by the ejecting block and the punch, thereby avoiding deformation of the blank, and then the upper die is reset, the ejecting block will rebound upward and continue to press the blank with the punch, and then the material is discharged from above the die hole, and in addition, A separation mechanism is provided so that after the punching is completed, when the upper mold is reset, the waste sheet can be automatically lifted away from the die seat, so that after each punching is completed, it is avoided that the waste sheet and the finished sheet are both located above the die seat, which leads to the situation that the finished sheet is lifted when the staff takes away the waste sheet. The separation mechanism allows multiple finished sheets to be located above the die seat separately, and multiple finished sheets can be in the same position as the die punching hole, so that multiple finished sheets can be taken out at one time by providing a special material taking and clamping tool, avoiding the waste sheet causing the finished sheet to be offset and affecting the convenience of taking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the upper mold and the lower mold of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the lifting mechanism inside the die base of the present invention;

[0022] Figure 3 It is a schematic cross-sectional structure diagram of the die base and the lower pad of the present invention;

[0023] Figure 4 For the present invention Figure 2 A schematic diagram of the local enlarged structure at D;

[0024] Figure 5 For the present invention Figure 1 A schematic diagram of the local enlarged structure at C;

[0025] Figure 6 It is a schematic diagram of the separation structure of the punch and the outer stripping plate of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the outer stripping plate and the separation mechanism of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the separation mechanism, the fixing plate and the outer release plate of the present invention;

[0028] Fig. 9 For the present invention Figure 7 A schematic diagram of the local enlarged structure at E;

[0029] Fig.10 It is a schematic diagram of the cross-sectional structure of the fixing block and the cylinder of the present invention;

[0030] Fig.11 It is a schematic diagram of the structure of the fixing block of the present invention;

[0031] Fig.12 It is a schematic cross-sectional structure diagram of the fixing block and the positioning plug block of the present invention;

[0032] Fig.13 It is a schematic diagram of the structure of the moving block of the present invention;

[0033] Fig.14 For the present invention Figure 7 A schematic diagram of the local enlarged structure at F;

[0034] Fig.15 For the present invention Figure 1 A local enlarged structural schematic diagram;

[0035] Fig.16 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point B.

[0036] In the figure: 1. upper mold; 2. lower mold; 3. lifting mechanism; 4. pressure plate groove; 5. die punching; 6. die insert; 7. mounting groove; 8. finished sheet; 9. positioning pin; 10. outer stripping plate; 11. through hole; 12. stripping spring; 13. guide column; 14. guide hole; 15. clearance hole; 16. separation mechanism; 17. unlocking component; 18. waste material holding component; 19. mounting plate; 20. sensor; 21. support plate; 22. cross plate; 23. induction plate; 24. sliding shaft; 201. lower mold base; 202. lower pad; 203. die base; 301. moving groove; 302. connecting groove; 303. movable slider; 304. ejector block; 305. elastic member; 101. upper mold base ;102, upper pad;103, fixed plate;104, punch;161, adsorption assembly;162, positioning assembly;611, fixed block;612, piston cylinder;613, air pipe;614, air hole;615, movable groove;616, moving block;617, fixed rod;6121, cylinder;6122, piston disc;6123, withdrawal rod;621, positioning hole;622, positioning plug block;623, through groove;624, inner baffle;625, connecting plate;626, slide rod;627, reset spring;628, outer baffle;171, connecting rope;172, connecting ring;173, guide wheel;181, pad foot;182, slide seat;183, holding frame;184, electric push rod. DETAILED DESCRIPTION

[0037] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given. However, the protection scope of the present invention is not limited to the following embodiments. In the description of the present invention, words indicating directions or positional relationships such as "front", "rear", "left", and "right" are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] The embodiment discloses a chip punching die with a lifting function, such as Figure 1-Figure 16 As shown, it includes an upper mold 1 and a lower mold 2. It should be noted that the following structural direction is described in the direction after the upper and lower molds are closed. Figure 1 and Figure 6 As shown, the punch 104 is fixed on the upper die 1, and the die is fixed on the lower die 2. When in use, the upper and lower dies 2 are respectively mounted on the upper slide and the table of the stamping equipment, and then the upper die 1 is moved downward by the stamping equipment, so that the punch 104 on the upper die 1 is moved downward to close the die with the die of the lower die 2, and the chip sheet is punched and cut by the cooperation of the punch 104 and the die blade, so as to obtain a finished product;

[0039] Considering that in actual work, after punching is completed, the punch 104 will punch the punched chip product into the inside of the die blade. Under normal circumstances, the punched product will be discharged through the blanking hole of the die. However, since the chip material is relatively thin, when discharging through the blanking hole, during the punching movement, when the punch 104 punches the punched product on the sheet, the punched product will move downward inside the die blade with the punch 104. In this process, since the material is too thin, in order to make the cross-section of the punched product more standard and the cross-section burrs smaller, the gap between the punch 104 and the blade will be set smaller. Therefore, after the punching is completed, the punched product will fit closely with the inner wall of the die blade, so that when the punch 104 presses the punched product downward inside the blade, the end face of the punched product will rub against the inner wall of the die blade, and the edge of the punched product will be warped, and During punching, the depth of the punch 104 falling inside the die blade is limited. The deeper the punch 104 falls inside the blade, the longer the wear length of the punch 104 and the blade will be. Therefore, the depth of the punch 104 falling inside the die blade will be shallow. Generally, the depth of the punch 104 falling inside the die is related to the material thickness. It is only necessary to adjust the depth of the punch 104 falling until the blanking of the material is completed. In order to facilitate subsequent maintenance, the blade can be processed by grinding the die after it is worn. The length of the die blade is generally set to have a certain length. Therefore, if the material is discharged through the discharge hole below, there will be multiple punched products stuck inside the die blade. After that, with each punching, the blanks squeeze each other to squeeze the finished product out through the blanking hole. There is no support below the finished product sheet 8, which will aggravate the deformation caused by the friction between the finished product sheet 8 and the inner wall of the blade.

[0040] In order to reduce the deformation of the finished material sheet 8 when it is discharged, as shown in FIG. Figure 1 and Figure 2 As shown, a lifting mechanism 3 is provided at the lower die 2, and the lifting mechanism 3 pushes up the finished sheet 8 after each punching is completed, so that the finished sheet 8 is discharged from above the knife edge, and the lifting mechanism 3 can support the finished sheet 8 from below and press the finished sheet 8 with the punch 104 to prevent the finished sheet 8 from being deformed when it moves up inside the knife edge;

[0041] Specifically, Figure 1-Figure 4 As shown, the lower die 2 includes a lower die base 201, a lower pad 202 and a die base 203, wherein the lower die base 201 is fixed with a lower pad 202 by screws, and the lower die base 203 is fixed with a die base 203 by screws. It should be noted that the lower die base 201, the lower pad 202 and the die base 203 can be positioned by pins, and the lower die base 201 is also provided with a pressing plate groove 4, through which the lower die 2 can be fixed to the stamping equipment by a pressing plate;

[0042] A die punching hole 5 is provided on the upper part of the die holder 203, and in order to improve the punching efficiency, a plurality of die punching holes 5 are provided on the die holder 203. In this embodiment, eight die punching holes 5 are provided, and the eight die punching holes 5 are divided into two rows, so that during the punching operation, a plurality of punched finished products can be obtained in one punching movement.

[0043] Since a plurality of die punching holes 5 are provided on the die base 203, in order to facilitate later maintenance, when the die punching hole 5 is worn, the worn die punching hole 5 can be repaired in a targeted manner, and the die punching hole 5 is set as an insert. Specifically, a mounting groove 7 is provided above the inside of the die base 203, and the mounting groove 7 passes through the upper end surface of the die base 203. A die insert 6 is slidably inserted into the inside of the mounting groove 7, and the outer wall of the die insert 6 is fitted with the inner wall of the mounting groove 7, and the die punching hole 5 is provided in the inside of the die insert 6 and passes through the upper and lower end surfaces of the die insert 6. In addition, it should be noted that the die insert 6 can be detachably fixed to the inside of the mounting groove 7 by screws, and the upper end surface of the die insert 6 is in the same horizontal plane as the upper end surface of the die base 203.

[0044] The lifting mechanism 3 is arranged below the die insert 6. In other words, a lifting mechanism 3 is arranged below each die insert 6. Specifically, the lifting mechanism 3 includes a moving groove 301, a connecting groove 302, a movable slider 303, a lifting block 304 and an elastic member 305. The moving groove 301 is arranged inside the lower pad 202, and the moving groove 301 passes through the upper end surface of the lower pad 202. A connecting groove 302 is arranged below the inside of the die seat 203, and the connecting groove 302 is connected to the elastic member 305. The die punching holes 5 are interconnected, and the connecting groove 302 and the die punching hole 5 are on the same vertical axis, while the movable groove 301, the connecting groove 302 and the die punching hole 5 are on the same vertical axis and are interconnected. In addition, the length and width of the movable groove 301 are larger than the length and width of the connecting groove 302, and a movable slider 303 is inserted into the movable groove 301 for longitudinal sliding. Since the size of the movable groove 301 is larger than that of the connecting groove 302, the movable slider 303 can only be moved in the movable groove 301. The movable groove 301 slides longitudinally inside, and the upper end surface of the movable slider 303 is fixedly provided with a lifting block 304, and the top end of the lifting block 304 slides through the connecting groove 302 and extends to the inside of the die punching hole 5, and the outer wall of the lifting block 304 is in contact with the inner wall of the die punching hole 5 and slides together, and the upper end surface of the lifting block 304 is set to be higher than the upper end surface of the die seat 203. It should be noted that when the upper end surface of the movable slider 303 is in contact with the lower end surface of the die seat 203, the upper end surface of the lifting block 304 The end surface is higher than the upper end surface of the die seat 203. In order to make the ejection block 304 have an upward lifting force, an elastic member 305 is arranged below the movable slide block 303. The bottom end of the elastic member 305 contacts the bottom wall of the movable groove 301, and then the movable slide block 303 has an upward lifting force through the elastic member 305. The ejection block 304 can be moved upward by the elastic member 305, and the ejection block 304 moves upward to eject the punched finished product upward for discharge, and the elastic member 305 can be set as a spring;

[0045] In addition, a positioning pin 9 is provided above the die seat 203, and a plurality of positioning pins 9 are provided, and the sheet is positioned by the positioning pin 9, so as to facilitate the placement of the sheet;

[0046] Therefore, by setting the lifting mechanism 3, in the actual punching movement, the sheet is placed on the die seat 203, and then the upper die 1 moves downward, which causes the punch 104 to move downward, and the punch 104 will be molded together with the die punching hole 5 to punch the sheet, and the punched finished sheet 8 will be pressed into the punch hole by the punch 104. At this time, the ejection block 304 will also be pressed down by the punch 104, and the finished sheet 8 will be located between the ejection block 304 and the punch 104, and will be pressed by the ejection block 304 and the punch 104, thereby avoiding deformation of the sheet, and then the punch 104 moves upward, and is The elastic member 305 pushes the ejecting block 304 upwards, and the ejecting block 304 pushes the finished sheet 8 upwards and ejects the punch hole for discharge. When the finished sheet 8 moves upwards, the punch 104 moves upwards, and the ejecting block 304 moves upwards to push the finished sheet 8 under the action of the elastic member 305, and the finished sheet 8 is pressed between the punch 104 and the ejecting block 304, so that when the end face of the finished sheet 8 is subjected to friction, the whole face can be pressed, thereby preventing the finished sheet 8 from bending and deforming due to the friction with the inner wall of the punch hole when moving upwards, thereby reducing the deformation of the finished sheet 8 when discharging.

[0047] Specifically, Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the upper die 1 includes an upper die base 101, an upper pad 102, a fixing plate 103 and a punch 104, wherein the upper die base 101 is used to connect with the upper slider of the stamping equipment, and the upper pad 102 is fixedly connected to the lower part of the upper die base 101 by screws, and the fixing plate 103 is fixed to the lower part of the upper pad 102 by screws, and the punch 104 is installed on the fixing plate 103. More specifically, a punch hole for the punch 104 to be inserted is opened on the fixing plate 103, and the punch 104 is slidably inserted in the inside of the punch hole, and the punch 1 The outer wall of 04 is set to be tightly matched with the punch hole, and a hanging platform is set on the top of the punch 104, through which the punch 104 is limited on the fixed plate 103, and the upper pad 102 is used to support the punch 104. It should be noted that the upper pad 102 is quenched so that the hardness of the upper pad 102 can support the punch 104 and prevent the upper pad 102 from being concave. In addition, the punch 104 is matched with the die punching hole 5 on the lower mold 2. Accordingly, the number of punches 104 is the same as the number of die punching holes 5;

[0048] Therefore, when the punching work is performed, the upper die 1 is lowered by the punching equipment, and the punch 104 on the upper die 1 is lowered and inserted into the punch hole 5 of the die, and then the punch 104 is combined with the die to punch out the sheet on the die seat 203;

[0049] In addition, in order to compact the sheet when the upper die 1 moves downward, and to remove the waste material from the punch 104 after the punching is completed, an outer stripping plate 10 is provided below the fixed plate 103, and a through hole 11 matching the punch 104 is provided on the outer stripping plate 10, and the punch 104 is slidably inserted in the through hole 11, so that the outer stripping plate 10 can slide longitudinally on the outer wall of the punch 104, and a stripping spring 12 is provided between the outer stripping plate 10 and the fixed plate 103, and the outer stripping plate 10 is fixed by equal height screws. It is installed below the fixed plate 103, and the lower end surface of the outer stripping plate 10 is located below the lower end surface of the punch 104. Therefore, when the upper mold 1 moves down for blanking, the outer stripping plate 10 will first contact the sheet on the die seat 203 and press the sheet tightly. Then, as the upper mold 1 continues to move down, the fixed plate 103 continues to move down and compress the stripping spring 12, and the punch 104 will extend through the through hole 11 of the outer stripping plate 10 for blanking. Then, the upper mold 1 moves up, and the outer stripping plate 10 rebounds through the stripping spring 12 to strip the waste sheet.

[0050] It should be noted that a guide post 13 is also installed on the fixed plate 103, and a corresponding guide hole 14 is opened on the die seat 203, through which the upper die 1 is guided when it moves downward, and a clearance hole 15 is opened on the lower end surface of the outer stripping plate 10 to avoid the positioning pin 9;

[0051] The above arrangement enables the finished sheet 8 to be discharged from above the die seat 203. When the finished sheet 8 is discharged from above, both the finished sheet 8 and the waste sheet are located above the die seat 203. The staff needs to take away the waste sheet by means of a tool and then take out the finished sheet 8. Since both the waste sheet and the finished sheet 8 are located above the die seat 203 and the finished sheet 8 is small in size, when taking out the waste sheet, the finished sheet 8 may be stuck on the hole of the waste sheet and be lifted up, making it inconvenient to take out the material. Moreover, when the waste sheet is taken out, the finished sheet 8 may be driven away so that the position of the finished sheet 8 may be shifted, making it impossible to ensure the fixed position of the finished sheet after each punching. Since a punching may have multiple finished sheets, taking out the finished sheets one by one is not convenient enough.

[0052] Therefore, if Figure 1 , Figure 6 , Figure 7 and Figure 8As shown, a separation mechanism 16 is provided at the upper mold 1. After the punching is completed, when the upper mold 1 moves up and resets, the separation mechanism 16 can suck the waste sheet and move it to the top of the die seat 203 and away from the die seat 203, thereby separating the waste sheet from the finished sheet 8. It should be noted that in order to prevent the waste sheet from moving up and carrying the finished sheet 8, the upward movement of the waste sheet is set to be before the finished sheet 8 moves from the die punching hole 5 to the upper end surface of the die seat 203, and then before the finished sheet 8 moves from the die punching hole 5 to the die seat 203. When the waste sheet is on the upper end surface of the die base 203, the waste sheet has been lifted up by the separation mechanism 16 and moved to the upper side of the die base 203, thereby avoiding mutual interference. At the same time, a waste material holding assembly 18 is also provided at the upper die 1, so that when the waste sheet moves to the upper side, when the upper die 1 reaches the upper limit position, the waste sheet falls off and falls into the waste material holding assembly 18, so that after each punching is completed, the waste sheet is taken away with the reset upward movement of the upper die 1 and automatically falls into the waste material holding assembly 18, and the staff only needs to take out the finished sheet 8;

[0053] Specifically, the separation mechanism 16 includes an adsorption component 161 and a positioning component 162, wherein the adsorption component 161 is used to adsorb the waste sheet on the outer stripping plate 10 after punching is completed, and the positioning component 162 is used for when the outer stripping plate 10 is moved upward by the die seat 203 outside the punch 104 and compresses the stripping spring 12. When the punch 104 enters the inside of the die punching hole 5 and completes the punching, the outer stripping plate 10 can be highly positioned by the positioning component 162, so that the outer stripping plate 10 is punched after the punching is completed. The blade end of the punch 104 extends out of the through hole 11 of the outer stripping plate 10. When the blade of the punch 104 is located below the lower end surface of the outer stripping plate 10, the height position can be positioned by the positioning component 162, so that when the upper mold 1 rises and resets later, the waste sheet can be located above the blade of the punch 104 and adsorbed by the adsorption component 161, and the upper mold 1 moves up to directly drive the waste sheet to move up, so that before the finished sheet 8 returns to the top of the die seat 203, the waste sheet is separated from the die seat 203, thereby preventing the waste sheet from carrying the finished sheet 8;

[0054] There are multiple adsorption components 161, and the multiple adsorption components 161 are arranged between the outer stripping plate 10 and the fixed plate 103, and the multiple adsorption components 161 are evenly distributed, so that the waste sheet can be sucked by the multiple adsorption components 161;

[0055] More specifically, Figure 6-Figure 10As shown, the adsorption assembly 161 includes a fixed block 611, a piston cylinder 612, an air pipe 613, an air hole 614, a movable groove 615, a moving block 616 and a fixed rod 617. The fixed block 611 is fixedly arranged on the lower end surface of the fixed plate 103, and a piston cylinder 612 is fixedly arranged below the fixed block 611. The piston cylinder 612 is composed of a cylinder body 6121 and an internal piston disk 6122. The piston disk 6122 is longitudinally slidably arranged inside the cylinder body 6121, and the outer wall of the piston disk 6122 is in contact with the inner wall of the cylinder body 6121. The cylinder 6121 is connected to the air pipe 613 below. Correspondingly, an air hole 614 is provided at the position corresponding to the outer stripping plate 10 and the air pipe 613, and the air hole 614 passes through the upper and lower end surfaces of the outer stripping plate 10. The air hole 614 and the air pipe 613 are on the same vertical axis, and the air pipe 613 is connected to the air hole 614. Therefore, by moving the piston plate 6122 up and down inside the cylinder 6121, the air pipe 613 can be inhaled and exhausted. When the piston plate 6122 moves up, the air hole 614 The waste sheet is sucked by suction force, and the upper end surface of the piston plate 6122 is fixedly connected with a pumping rod 6123, and a movable groove 615 is provided inside the fixed block 611, and the movable groove 615 runs through the front and rear end surfaces of the fixed block 611, and the top end of the pumping rod 6123 passes through the top wall of the cylinder 6121 and the bottom wall of the movable groove 615 and extends to the inside of the movable groove 615. It should be noted that the pumping rod 6123 is in sliding cooperation with the top wall of the cylinder 6121 and the bottom wall of the movable groove 615, and the movable groove 615 is provided with a movable groove for longitudinal sliding inside. The movable block 616, and one end of the draw rod 6123 located inside the movable groove 615 is fixedly connected to the bottom wall of the movable block 616, and the front and rear ends of the movable block 616 extend to the front and rear ends of the fixed block 611 respectively, and the front and rear ends of the movable block 616 are respectively fixedly provided with fixed rods 617, and the bottom end of the fixed rod 617 is fixedly connected to the outer release plate 10. In addition, since the fixed block 611 and the piston cylinder 612 are connected to the fixed plate 103, in order to prevent the air pipe 613 from affecting the up and down movement of the outer release plate 10, the air pipe 613 is set as a telescopic tube;

[0056] It should be noted that the position of the air hole 614 is within the range of the sheet, so that after the outer stripping plate 10 moves down and the die seat 203 presses the sheet, the sheet can cover the air hole 614. In addition, the air hole 614 is staggered with the die punching hole 5.

[0057] Therefore, through the above arrangement, when the upper mold 1 moves downward for punching, the outer stripping plate 10 first contacts the die seat 203 and presses the sheet, and then the fixed plate 103 follows the upper mold 1 to move downward continuously, and the outer stripping plate 10 stops moving downward. The downward movement of the fixed plate 103 will cause the punch 104 to extend downward from the through hole 11 of the outer stripping plate 10, and the punch 104 will enter the inside of the die punching hole 5 to punch the sheet. At this time, since the fixed block 611 and the piston cylinder 612 are connected to the fixed plate 103, and the movable block 616 is connected to the outer stripping plate 10 through the fixed rod 617 When the fixed plate 103 moves downward, the fixed block 611 and the piston cylinder 612 will be driven to move downward, while the moving block 616 and the fixed rod 617 will remain stationary. Since the pumping rod 6123 is connected to the moving block 616, when the piston cylinder 612 moves downward, the piston cylinder 612 moves downward outside the piston plate 6122. In other words, the piston plate 6122 moves upward inside the piston cylinder 612, so that air is sucked at the air pipe 613, and the air pipe 613 is connected with the air hole 614, so that the air hole 614 sucks air, so that the waste sheet is sucked through the air hole 614;

[0058] like Figure 6-Figure 13As shown, the positioning assembly 162 includes a positioning hole 621, a positioning plug 622, a through slot 623, an inner baffle 624, a connecting plate 625, a slide bar 626, a return spring 627 and an outer baffle 628, wherein the moving block 616 is located in a section inside the movable groove 615 and has a positioning hole 621, and the positioning hole 621 passes through the two side end surfaces of the moving block 616, and correspondingly, a through slot 623 is opened on the outer wall of one side of the movable groove 615, and the through slot 623 passes through the one side end surface of the fixed block 611 and the movable groove The inner wall of one side of 615, the interior of the through groove 623 is slidably plugged with a positioning plug 622, and the size of the positioning plug 622 is configured to be slidably plugged with the positioning hole 621. It should be noted that the positioning plug 622 is located above the moving block 616, and one end of the positioning plug 622 extends to the inside of the movable groove 615. The end face of the positioning plug 622 located in the inside of the movable groove 615 is an inclined surface, and the angle of the inclined surface is configured so that when the moving block 616 moves up, the moving block 616 and the positioning plug 621 can be slidably plugged. The contact of the inclined surface at one end of 22 squeezes the positioning plug 622 toward the inside of the through slot 623, and the other end of the positioning plug 622 is fixedly provided with an inner baffle 624, and the inner baffle 624 is located on one side of the fixed block 611, and the positioning plug 622 is limited by the inner baffle 624, and a connecting plate 625 is also provided on one side of the inner baffle 624, and the connecting plate 625 is fixedly connected to the fixed block 611 through a support plate, and a sliding rod 626 is also fixedly provided on one side of the inner baffle 624, and the other end of the sliding rod 626 slides The slide bar 626 is movable through the connecting plate 625 and extends to one side of the connecting plate 625. An outer baffle 628 is fixedly provided at one end of the slide bar 626 located on one side of the connecting plate 625. The outer baffle 628 is used to limit the slide bar 626. A return spring 627 is also sleeved on the outer wall of the slide bar 626. The return spring 627 is located between the connecting plate 625 and the inner baffle 624. Then, the inner baffle 624 is rebounded toward the movable groove 615 by the return spring 627, so that one end of the positioning plug 622 is located inside the movable groove 615.

[0059] Through the above arrangement, when the fixed plate 103 moves downward, the fixed block 611 will move downward outside the moving block 616, and through the arrangement of the inclined surface at one end of the positioning plug 622, when the inclined surface of the positioning plug 622 contacts the outer wall of the moving block 616, the positioning plug 622 can be moved toward the inside of the through groove 623, and when the positioning plug 622 moves to align with the positioning hole 621, the positioning plug 622 is inserted into the inside of the positioning hole 621 through the action of the return spring 627, and then the height of the external stripping plate 10 is limited by the cooperation of the positioning plug 622 and the positioning hole 621, so that After the punching is completed, the blade end of the punch 104 extends out of the through hole 11 of the outer stripping plate 10. When the blade of the punch 104 is located below the lower end surface of the outer stripping plate 10 and the punch 104 is still located inside the die punching hole 5, the height position of the outer stripping plate 10 can be positioned, so that when the upper mold 1 rises and resets later, the waste sheet can be located above the blade of the punch 104 and adsorbed by the air hole 614, and the upper mold 1 moves up to directly drive the waste sheet to move up, so that before the finished sheet 8 returns to the top of the die seat 203, the waste sheet is separated from the die seat 203, thereby preventing the waste sheet from carrying the finished sheet 8;

[0060] When the upper mold 1 returns to the upper limit position, the waste sheet is removed again. Figure 7 , Fig.14 and Fig.15 As shown, an unlocking assembly 17 is also provided. After the upper mold 1 returns to the upper limit position through the unlocking assembly 17, the finished material sheet 8 moves to the top of the die seat 203, and the positioning plug 622 is separated from the positioning hole 621, so that the outer stripping plate 10 can move downward through the action of the stripping spring 12 to push the waste sheet downward for stripping;

[0061] Specifically, the unlocking assembly 17 includes a connecting rope 171, a connecting ring 172 and a guide wheel 173, wherein one side of each outer baffle plate 628 is fixedly connected with a connecting rope 171, and the other end of the connecting rope 171 is connected with a connecting ring 172, and the connecting ring 172 is detachably connected to the die seat 203, and can be detachably connected by means of threads or the like. In addition, a guide wheel strip is fixedly provided on the side of the fixed plate 103, and a guide wheel 173 is provided at the bottom end of the guide wheel strip. The connecting rope 171 can be guided downward from one side between the outer stripping plate 10 and the fixed plate 103 by the guide wheel 173. It should be noted that the length of the connecting rope 171 is configured so that when the upper mold 1 returns to the upper limit position, the connecting rope 171 is tightened, and the tightening of the connecting rope 171 pulls the outer baffle plate 628 outward, so that the positioning plug 622 is separated from the positioning hole 621;

[0062] Therefore, after each punching and cutting, when the upper mold 1 returns to the upper limit position, the positioning plug 622 is pulled by the connecting rope 171, so that the positioning plug 622 is separated from the positioning hole 621, and after there is no insertion limit of the positioning plug 622 and the positioning hole 621, the outer stripping plate 10 is moved down by the action of the stripping spring 12 to strip the waste sheet, and after the outer stripping plate 10 moves down, the moving block 616 moves again to the bottom of the positioning plug 622, and when the upper mold 1 moves down to continue punching and cutting, the connecting rope 171 becomes loose, and the reset spring 627 rebounds the positioning plug 622 again, so that one end of the positioning plug 622 is located inside the movable groove 615;

[0063] In order to collect the waste pieces removed from the material and prevent the waste pieces from falling back onto the die holder 203, Figure 1 As shown, the waste holding assembly 18 is configured to include a foot 181, a slide 182, a holding frame 183 and an electric push rod 184, wherein the foot 181 is arranged behind the die base 203, and the foot 181 is fixed on the top of the lower die base 201 by screws, and the slide 182 is fixedly arranged above the foot 181, and a holding frame 183 is slidably arranged above the slide 182, and the holding frame 183 is higher than the die base 203 in height, and the holding frame 183 is located above the rear end of the die base 203 , and an electric push rod 184 is provided at the rear end of the containing frame 183, and the electric push rod 184 is fixedly installed on the slide 182, the telescopic shaft of the electric push rod 184 is fixedly connected to the outer wall of the containing frame 183, and the extension direction of the electric push rod 184 is extended toward the direction of the die seat 203, and then the containing frame 183 can be pushed toward the die seat 203 by the electric push rod 184, so that the containing frame 183 can be moved between the die seat 203 and the upper mold 1, and is used to hold the stripped waste pieces;

[0064] The activation of the electric push rod 184 is controlled by the sensor 20, specifically, as Figure 1 and Fig.16As shown, a mounting plate 19 is fixedly provided on the side of the upper die base 101, and a sensor 20 is installed above the mounting plate 19. The sensor 20 is set as a proximity sensor 20. A support plate 21 is fixedly provided at the corresponding position of the lower die base 201. A cross plate 22 is fixedly provided above the support plate 21. The cross plate 22 is located above the mounting plate 19, and a sensing plate 23 is provided below the cross plate 22. The sensing plate 23 is longitudinally movable through a sliding shaft 24 and is provided below the cross plate 22. The sensing plate 23 is also located above the mounting plate 19 and the sensor 20. In addition, it should be noted that the sensing plate 23, the cross plate 22 and the mounting plate 19 are all in the same vertical direction. The sensor 20 is electrically connected to the electric push rod 184. When the upper mold 1 is reset and moved upward, the sensor 20 moves upward with the upper mold base 101 and contacts the induction plate 23. The electric push rod 184 starts to move the containing frame 183 toward the die base 203 to contain the waste sheet. By setting the induction plate 23, before the upper mold base 101 returns to the upper limit position, the sensor 20 contacts the induction plate 23. The containing frame 183 moves to between the die base 203 and the outer stripping plate 10 before the waste sheet is stripped. After that, the upper mold base 101 continues to move upward. The induction plate 23 can continue to move upward through the sliding shaft to prevent the induction plate 23 from affecting the reset of the upper mold 1.

[0065] In addition, it should be noted that the position of the induction plate 23 is higher than the position of the holding frame 183, and the electric push rod 184 can be set to be controlled by the sensor 20 to perform a reciprocating movement, and then move to the top of the die seat 203 to hold the stripped waste sheet, or the electric push rod 184 can also be set to be controlled by the sensor 20 to extend, and then retracted by the staff to press a button;

[0066] Therefore, through the above-mentioned arrangement, after each punching is completed, the waste sheet is separated from the finished sheet 8, and multiple finished sheets 8 are individually located on the die seat 203, and multiple finished sheets 8 can all be in the same position as the die punching hole 5, so that multiple finished sheets 8 can be taken out at one time by setting a special material removal clamping tool, avoiding the waste sheet causing the finished sheet 8 to shift in position and affecting the convenience of material removal.

[0067] The principle of the present invention is as follows: in actual operation, the present invention places the blank on the die seat 203, and then the upper die 1 moves downward, which causes the punch 104 to move downward, and the punch 104 will be molded together with the die punching hole 5 to punch the blank, and the punched finished blank 8 will be pressed into the punching hole by the punch 104. At this time, the top material block 304 will also be pressed down by the punch 104, and the finished blank 8 will be located between the top material block 304 and the punch 104, and will be pressed by the top material block 304 and the punch 104, thereby preventing the blank from being deformed, and then the punch 104 moves upward, and is elastically pressed. The elastic member 305 pushes the ejection block 304 upwards, and the ejection block 304 pushes the finished sheet 8 upwards and ejects the punch hole for discharge. When the finished sheet 8 moves upwards, the punch 104 moves upwards, and the ejection block 304 is moved upwards by the elastic member 305 to push the finished sheet 8 upwards, and the finished sheet 8 is pressed between the punch 104 and the ejection block 304, so that when the end face of the finished sheet 8 is subjected to friction, it can be pressed by the entire face, thereby preventing the finished sheet 8 from bending and deforming due to the friction with the inner wall of the punch hole when moving upwards, thereby reducing the deformation of the finished sheet 8 when discharging. In this case, after the punching is completed, when the upper mold 1 moves up and resets, the adsorption component 161 can absorb the waste sheet and move it to the top of the die seat 203 and away from the die seat 203, thereby separating the waste sheet from the finished sheet 8. In order to prevent the waste sheet from moving up and carrying the finished sheet 8, the positioning component 162 is used for when the outer stripping plate 10 is moved upward by the die seat 203 outside the punch 104 and compresses the stripping spring 12 during the punching. When the punch 104 enters the inside of the die punching hole 5 and completes the punching, the outer stripping plate 10 can be highly positioned by the positioning component 162 , so that after the outer stripping plate 10 is punched and cut, the blade end of the punch 104 extends out of the through hole 11 of the outer stripping plate 10. When the blade of the punch 104 is located below the lower end surface of the outer stripping plate 10, it can be positioned in height by the positioning component 162, so that when the upper mold 1 rises and resets later, the waste piece can be located above the blade of the punch 104 and be adsorbed by the adsorption component 161, and the upward movement of the upper mold 1 directly drives the waste piece to move upward, so that before the finished piece 8 moves to above the die seat 203, the waste piece is separated from the die seat 203, thereby preventing the waste piece from carrying the finished piece 8.

[0068] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A chip punching die with a lifting function, comprising an upper die (1) and a lower die (2), wherein: The punch (104) is fixed on the upper die (1), and the die is fixed on the lower die (2), and the feature is that a lifting mechanism (3) is provided at the lower die (2), and the lifting mechanism (3) is used to push up the finished sheet (8) and discharge the sheet from above the knife edge after each punching is completed; The lower die (2) comprises a lower die base (201), a lower pad (202) and a die base (203); the lower die base (201), the lower pad (202) and the die base (203) are connected in sequence from bottom to top by screws; a die punching hole (5) is provided at the upper part of the inside of the die base (203); and a plurality of die punching holes (5) are provided on the die base (203); a mounting groove (7) is provided at the upper part of the inside of the die base (203); the mounting groove (7) passes through the upper end surface of the die base (203); a die insert (6) is slidably inserted into the inside of the mounting groove (7); and the outer wall of the die insert (6) is fitted with the inner wall of the mounting groove (7); and the die punching hole (5) is provided in the inside of the die insert (6) and passes through the upper and lower end surfaces of the die insert (6); A lifting mechanism (3) is provided below each of the die inserts (6), and the lifting mechanism (3) comprises a movable groove (301), a connecting groove (302), a movable slider (303), a material ejecting block (304) and an elastic member (305). The movable groove (301) is provided inside the lower pad (202), and the movable groove (301) passes through the upper end surface of the lower pad (202). A connecting groove (302) is provided below the inside of the die seat (203), and the connecting groove (302) is communicated with the die punching hole (5). The length and width of the movable groove (301) are both greater than The length and width of the connecting groove (302) are such that a movable slider (303) is inserted into the movable groove (301) for longitudinal sliding movement. A top material block (304) is fixedly provided on the upper end surface of the movable slider (303). The top end of the top material block (304) slides through the connecting groove (302) and extends to the inside of the die punching hole (5). The outer wall of the top material block (304) is in contact with and slidably fits the inner wall of the die punching hole (5). An elastic member (305) is provided below the movable slider (303). The elastic member (305) is used to give the movable slider (303) an upward lifting force.

2. A chip punching die with a lifting function as claimed in claim 1, characterized in that: The die insert (6) is detachably fixed inside the mounting groove (7) by means of screws; the upper end surface of the die insert (6) and the upper end surface of the die seat (203) are in the same horizontal plane; the die seat (203) is provided with a positioning pin (9) for positioning the sheet.

3. A chip punching die with a lifting function as claimed in claim 2, characterized in that: The upper die (1) comprises an upper die base (101), an upper pad (102), a fixing plate (103) and a punch (104); the upper die base (101), the upper pad (102) and the fixing plate (103) are connected sequentially from top to bottom by screws; the punch (104) is mounted on the fixing plate (103); the upper pad (102) is used to support the punch (104); the punch (104) is matched with the die punching holes (5) on the lower die (2), and the number of the punches (104) is the same as the number of the die punching holes (5).

4. A chip punching die with a lifting function as claimed in claim 3, characterized in that: An outer stripping plate (10) is arranged below the fixed plate (103), and a through hole (11) matching the punch (104) is opened on the outer stripping plate (10), and the punch (104) is slidably inserted in the through hole (11), a stripping spring (12) is arranged between the outer stripping plate (10) and the fixed plate (103), and the outer stripping plate (10) is installed below the fixed plate (103) by means of equal height screws, the lower end surface of the outer stripping plate (10) is located below the lower end surface of the punch (104), a guide column (13) is also installed on the fixed plate (103), a corresponding guide hole (14) is opened on the die seat (203), and a clearance hole (15) for avoiding the positioning pin (9) is opened on the lower end surface of the outer stripping plate (10).

5. A chip punching die with a lifting function as claimed in claim 4, characterized in that: The upper mold (1) is also provided with a separation mechanism (16). After punching is completed, when the upper mold (1) moves up and resets, the separation mechanism (16) absorbs the waste sheet and moves it to the top of the die seat (203) and away from the die seat (203). The separation mechanism (16) includes an adsorption component (161) and a positioning component (162). The adsorption component (161) is used to absorb the waste sheet on the outer stripping plate (10) after punching is completed. When punching is performed, when the punch (104) enters the inside of the die punching hole (5) and punching is completed, the positioning component (162) is used to clamp and position the height position of the outer stripping plate (10).

6. A chip punching die with a lifting function as claimed in claim 5, characterized in that: A plurality of adsorption components (161) are provided, and the adsorption components (161) are evenly distributed.

7. A chip punching die with a lifting function as claimed in claim 6, characterized in that: The adsorption assembly (161) comprises a fixed block (611), a piston cylinder (612), an air pipe (613), an air hole (614), a movable groove (615), a movable block (616) and a fixed rod (617); the fixed block (611) is fixedly arranged on the lower end surface of the fixed plate (103); a piston cylinder (612) is fixedly arranged below the fixed block (611); the piston cylinder (612) consists of a cylinder body (6121) and The piston plate (6122) is longitudinally slidably arranged inside the cylinder (6121), and an air pipe (613) is arranged below the cylinder (6121). An air hole (614) is opened at a position corresponding to the air pipe (613) on the outer release plate (10), and the air hole (614) passes through the upper and lower end surfaces of the outer release plate (10). The air hole (614) and the air pipe (613) are in the same position with each other. The piston plate (6122) is connected to the vertical axis, and the upper end surface of the piston plate (6122) is fixedly connected with a draw rod (6123). A movable groove (615) is provided inside the fixed block (611), and the movable groove (615) passes through the front and rear end surfaces of the fixed block (611). The top end of the draw rod (6123) passes through the top wall of the cylinder (6121) and the bottom wall of the movable groove (615) and extends to the inside of the movable groove (615). A movable block (616) is longitudinally slidably arranged inside the movable groove (615). One end of the draw rod (6123) located inside the movable groove (615) is fixedly connected to the bottom wall of the movable block (616). The front and rear ends of the movable block (616) extend to the front and rear ends of the fixed block (611) respectively. The front and rear ends of the movable block (616) are fixedly connected to the outer release plate (10) through a fixed rod (617), and the air pipe (613) is arranged as a telescopic tube.

8. A chip punching die with a lifting function as claimed in claim 7, characterized in that: The positioning assembly (162) includes a positioning hole (621), a positioning plug (622), a through groove (623), an inner baffle (624), a connecting plate (625), a sliding rod (626), a return spring (627) and an outer baffle (628); the moving block (616) is located in a section inside the movable groove (615) and is provided with a positioning hole (621); the positioning hole (621) passes through both side end surfaces of the moving block (616); a through groove (623) is provided on one side outer wall of the movable groove (615); a positioning plug (622) is slidably inserted into the interior of the through groove (623); and the size of the positioning plug (622) is configured to be slidably inserted into the positioning hole (621); the positioning plug (622) is located above the moving block (616); one end of the positioning plug (622) extends to the inside of the movable groove (615); and the positioning plug (622) is provided to ... The end surface of the block (622) located in a section inside the movable groove (615) is an inclined surface, and the other end of the positioning plug block (622) is fixedly provided with an inner baffle plate (624), and the inner baffle plate (624) is located on one side of the fixed block (611), and a connecting plate (625) is also provided on one side of the inner baffle plate (624), and the connecting plate (625) is fixedly connected to the fixed block (611) through a support plate, and a sliding rod (626) is also fixedly provided on one side of the inner baffle plate (624), and the other end of the sliding rod (626) slides through the connecting plate (625) and extends to one side of the connecting plate (625), and an outer baffle plate (628) is fixedly provided on one end of the sliding rod (626) located on one side of the connecting plate (625), and a return spring (627) is also sleeved on the outer wall of the sliding rod (626), and the return spring (627) is located between the connecting plate (625) and the inner baffle plate (624).

9. A chip punching die with a lifting function as claimed in claim 8, characterized in that: The separation between the positioning plug (622) and the positioning hole (621) is controlled by an unlocking component (17). After the upper mold (1) returns to the upper limit position, the unlocking component (17) is used to control the separation of the positioning plug (622) and the positioning hole (621). The unlocking component (17) includes a connecting rope (171), a connecting ring (172) and a guide wheel (173). One side of the outer baffle (628) is fixedly connected to the connecting rope (171), and the other end of the connecting rope (171) is connected to the connecting ring (172). 72), the connecting ring (172) is detachably connected to the die seat (203), a guide wheel strip is fixedly provided on the side of the fixing plate (103), a guide wheel (173) is provided at the bottom end of the guide wheel strip, and the guide wheel (173) is used to guide the connecting rope (171), and the length of the connecting rope (171) is configured so that when the upper mold (1) returns to the upper limit position, the connecting rope (171) is tightened and pulls the outer baffle (628) outward, and the positioning block (622) is separated from the positioning hole (621).

10. A chip punching die with a lifting function as claimed in claim 9, characterized in that: The lower mold (2) is also provided with a waste holding assembly (18), the waste holding assembly (18) is provided to include a pad foot (181), a slide seat (182), a holding frame (183) and an electric push rod (184), the pad foot (181) is provided at the rear of the die seat (203), and the pad foot (181) is fixed on the top of the lower mold seat (201) by screws, the slide seat (182) is fixedly provided on the top of the pad foot (181), a holding frame (183) is slidably provided on the top of the slide seat (182), and the holding frame (183) is higher than the die seat (203), the rear end of the holding frame (183) is provided with an electric push rod (184), and the electric push rod (184) is fixedly installed on the slide seat (182), and the telescopic shaft of the electric push rod (184) is fixedly connected to the outer wall of the holding frame (183). A mounting plate (19) is fixedly provided on the side of the upper die base (101), a sensor (20) is installed above the mounting plate (19), a support plate (21) is fixedly provided on the lower die base (201) at a position corresponding to the mounting plate (19), a cross plate (22) is fixedly provided above the support plate (21), the cross plate (22) is located above the mounting plate (19), a sensing plate (23) is provided below the cross plate (22), and the sensing plate (23) is longitudinally movable below the cross plate (22) through a sliding shaft (24), the sensing plate (23) is also located above the mounting plate (19) and the sensor (20), the sensing plate (23), the cross plate (22) and the mounting plate (19) are all on the same vertical axis, and the sensor (20) is electrically connected to the electric push rod (184).

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