A stamping die with a stable guiding structure

Abstract

The present invention discloses a stamping die with a stable guide structure, which belongs to the technical field of stamping devices, and includes a feeding device, the feeding device is used to feed the metal sheet to be stamped, a stamping device is arranged on the feeding device, the stamping device is used to cut and stamp the metal sheet, and an ejection device is arranged on the stamping device, and the ejection device is used to push out the processed metal sheet. When the conveyor belt provided by the present invention conveys the metal sheet, the metal sheet is straightened, the baffle is used to position the metal sheet to be stamped, and the upper die is located above; when the conveyor belt stops, the upper die descends and then rises to stamp the metal sheet, the upper die lifts the baffle, and the ejection plate ejects the stamped metal sheet, with a high degree of automation and good continuity; when the upper die descends, the cooperation of the insertion column and the insertion hole and the cooperation of the upper die and the docking groove provide a stable guide for the cooperation of the upper die and the lower die, and the stamping precision is high.

Description

Technical Field

[0001] The invention relates to the technical field of stamping devices, and in particular to a stamping die with a stable guiding structure. Background Art

[0002] A stamping die is a special tooling used to process materials into parts during cold stamping. The die is usually made of high-strength materials and needs to have functions such as controlling the shape of parts, ensuring the size of parts, and correcting material defects. Conventional stamping dies only have processing functions. In order to move materials, operators need to constantly put their hands into the closed area of ​​the die, which poses a huge safety hazard. At the same time, it is impossible to achieve continuous automatic entry and positioning of parts. For metal sheets, it is impossible to stamp the entire sheet as a whole. Stamping the entire sheet will result in incomplete stamping and poor stamping effect. It is often necessary to cut the metal sheet before stamping. At the same time, the stamping dies in the existing technology are often not accurately positioned during stamping, and automatic loading and unloading cannot be achieved, resulting in a low degree of automation. Summary of the invention

[0003] In view of the above technical problems, the technical solution adopted by the present invention is: a stamping die with a stable guiding structure, comprising a feeding device, the feeding device comprising a feeding rack, the feeding device is used to feed the metal sheet to be stamped, the feeding device is provided with a stamping device, the stamping device comprises a stamping rack, the stamping rack is fixedly mounted on the feeding rack, the stamping device is used to cut and stamp the metal sheet, the stamping device is provided with an ejection device, the ejection device comprises an ejection plate, the ejection plate is slidably mounted on the stamping rack, and the ejection device is used to push out the processed metal sheet.

[0004] Furthermore, the feeding device includes a bottom motor arranged below the feeding rack, a motor gear is fixedly mounted on the motor shaft of the bottom motor, a gear shaft is rotatably mounted on the feeding rack, an internal transmission gear, a half-tooth gear and a large half-tooth gear are fixedly mounted on the gear shaft, an output transmission belt is wrapped around the motor gear and the internal transmission gear, a lower gear is rotatably mounted on the feeding rack, an internal gear is fixedly mounted on the lower gear, the lower gear is meshed with the half-tooth gear, an upper docking gear and an eccentric gear are rotatably mounted on the feeding rack, the upper docking gear is meshed with the eccentric gear, an inclined guide surface is provided on the feeding rack, an upper limit block is fixedly mounted on the feeding rack, a stamping gear is rotatably mounted on the feeding rack, a stamping rotating rod is eccentrically rotatably mounted on the stamping gear, the stamping gear is meshed with the large half-tooth gear, when the half-tooth gear is meshed with the lower gear, the half-tooth gear is disengaged from the upper docking gear, and when the half-tooth gear is meshed with the upper docking gear, the half-tooth gear is disengaged from the lower gear.

[0005] Furthermore, a straightening mechanism is provided on the feed rack, and the straightening mechanism includes a slider slidably mounted on the feed rack, an eccentric rotating rod is rotatably mounted on the slider, the eccentric rotating rod and the eccentric gear are eccentrically rotatably mounted, two straightening plates are slidably mounted on the feed rack, a pulling rotating rod is rotatably mounted on the straightening plate, and the pulling rotating rod is rotatably mounted on the slider.

[0006] Furthermore, a conveying mechanism is provided on the feed rack, and the conveying mechanism includes an upper transmission wheel and a driven wheel rotatably mounted on the feed rack, a conveyor belt is wrapped around the upper transmission wheel and the driven wheel, an upper transmission gear is fixedly mounted on the upper transmission wheel, the upper transmission gear is meshed with the upper docking gear, and a conveying roller is rotatably mounted on the feed rack.

[0007] Put the metal sheet to be stamped into the feed rack, and the rotation of the bottom motor drives the motor gear to rotate, and the output transmission belt drives the internal transmission gear and the gear shaft to rotate, thereby driving the half-tooth gear and the large half-tooth gear to rotate, and the rotation of the large half-tooth gear drives the stamping gear to rotate intermittently, thereby driving the stamping rotating rod to rotate, and the half-tooth gear drives the lower gear and the internal gear to rotate intermittently, and the half-tooth gear drives the upper docking gear to rotate intermittently, and the upper docking gear drives the eccentric gear and the upper transmission gear to rotate. The rotation of the eccentric gear drives the eccentric rotating rod to rotate, thereby driving the slider to slide, thereby driving the two straightening plates to move closer or farther away from each other, and the metal sheet entering the feed rack is straightened by the straightening plate, and the upper transmission gear drives the upper transmission wheel to rotate, thereby driving the conveyor belt to convey the metal sheet, the conveying roller supports and assists in conveying the metal sheet, and the inclined guide surface centers the metal sheet.

[0008] When the conveyor belt conveys the metal sheet, the leveling plate straightens the metal sheet; when the conveyor belt stops, the leveling plate stops.

[0009] Furthermore, the stamping device includes a lower mold fixedly installed on the stamping frame, an upper mold slidably installed on the stamping frame, a stamping rod rotatably installed on the upper mold, the stamping rod and the stamping rotating rod are rotatably installed, a fixed knife is fixedly installed on the stamping frame, an upper cutting knife is slidably installed on the upper mold, a damper is fixedly installed on the upper mold, a spring is arranged between the upper mold and the upper cutting knife, a limit frame is fixedly installed on the stamping frame, a baffle is slidably installed on the limit frame, and two notches are arranged on the baffle.

[0010] Furthermore, the upper mold is provided with two lifting mechanisms, and the lifting mechanism includes a side slider slidably installed on the upper mold, a return spring is provided between the side slider and the upper mold, an upper support frame is fixedly installed on the stamping frame, a triangular block and a plate frame are fixedly installed on the side slider, and a push-open arc block is fixedly installed in the plate frame.

[0011] Furthermore, the punching frame is provided with an alignment mechanism, which includes a docking groove provided on the punching frame, an insertion column is fixedly mounted on the upper mold, and an insertion hole is provided on the lower mold.

[0012] The metal sheet is transported to the baffle and blocked by the baffle. At this time, the conveyor belt stops moving, and the punching rod rotates to drive the punching rod to rotate, thereby driving the upper mold to descend along the punching frame, thereby driving the upper cutter to descend, and the metal sheet is first cut by the upper cutter and the fixed knife. Then the upper mold continues to descend, the spring is compressed, and the metal sheet is punched by the upper mold and the lower mold. The upper mold is inserted into the docking groove, and the insertion column is inserted into the insertion hole for guiding and positioning. When the upper mold descends, it will drive the plate frame and the push-open arc block to descend. When the push-open arc block contacts the baffle, the baffle will push the push-open arc block and the side slider along The upper mold slides and the return spring is stretched. When the push-open arc block reaches the notch, the return spring rebounds, allowing the push-open arc block to enter the notch. When the upper mold completes stamping and rises, the baffle will be driven to rise along the limit frame by the push-open arc block. At this time, the stamped metal sheet can be lifted and slid out through the ejector plate. When the triangular block rises to the upper support frame, the triangular block and the side slide block are pushed outward under the action of the upper support frame, and the return spring is stretched, causing the push-open arc block to leave the notch. Under the action of gravity, the baffle slides downward along the limit frame to reset, and the baffle blocks the next arriving metal sheet again.

[0013] Furthermore, the ejection device includes a transmission shaft rotatably mounted on the stamping frame, the transmission shaft and the internal gear are fixedly mounted, a lifting wheel is rotatably mounted on the stamping frame, a lifting transmission belt is wrapped around the lifting wheel and the internal gear, four lifting columns are arranged on the inner side of the lifting transmission belt, and a lower ejector block is fixedly mounted on the ejection plate.

[0014] The internal gear rotates to lift the transmission belt, thereby driving the lifting column to move. The lifting column lifts the lower ejector block and the ejector plate. The ejector plate slides upward along the stamping frame, and one end of the stamped metal sheet is lifted by the ejector plate. Then the stamped metal sheet slides out. When the lifting column leaves the bottom of the lower ejector block, the ejector plate and the lower ejector block are reset under the action of gravity.

[0015] When the conveyor belt transports the metal sheet, the straightening plate straightens the metal sheet, the baffle fits with the stamping frame, and the upper mold is located on top; when the conveyor belt stops, the straightening plate stops, the upper mold descends and then rises to stamp the metal sheet, the upper mold lifts the baffle, the ejector plate ejects the stamped metal sheet, and then the baffle is reset.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) when the conveyor belt provided in the present invention conveys the metal sheet, the leveling plate straightens the metal sheet, the baffle plate fits with the stamping frame, and the metal sheet to be stamped is positioned, and the upper mold is located at the top; when the conveyor belt stops, the leveling plate stops, the upper mold descends and then rises to stamp the metal sheet, the upper mold lifts the baffle plate, and the ejector plate ejects the stamped metal sheet and then resets the baffle plate, with high automation and good continuity; (2) when the conveying mechanism provided in the present invention conveys the metal sheet to be stamped, the conveying roller assists in conveying, and the leveling plate continuously levelizes the metal sheet, so that the metal sheet remains flat before stamping, thereby improving the stamping effect; (3) when the upper mold provided in the present invention descends, the cooperation between the insertion column and the insertion hole and the cooperation between the upper mold and the docking groove provide a stable guide for the cooperation between the upper mold and the lower mold, and the stamping accuracy is high; (4) when the upper mold provided in the present invention rises, the baffle plate will be lifted up, so that the ejector plate can eject the stamped metal sheet and realize automatic material discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 The structure of the feeding device of the present invention is shown in FIG. Figure 1 .

[0019] Figure 3 The structure of the feeding device of the present invention is shown in FIG. Figure 2 .

[0020] Figure 4 The structure of the feeding device of the present invention is shown in FIG. Figure 3 .

[0021] Figure 5 The structure of the punching device of the present invention is schematically shown in FIG. Figure 1 .

[0022] Figure 6 The structure of the punching device of the present invention is schematically shown in FIG. Figure 2 .

[0023] Figure 7 For the present invention Figure 5 A local enlarged schematic diagram of point A in the middle.

[0024] Figure 8 It is a schematic diagram of the alignment mechanism structure of the present invention.

[0025] Fig. 9 The structure of the ejection device of the present invention is schematically shown in FIG. Figure 1 .

[0026] Fig.10 The structure of the ejection device of the present invention is schematically shown in FIG. Figure 2 .

[0027] Figure numbers: 101-feeding rack; 102-bottom motor; 103-motor gear; 104-output transmission belt; 105-internal transmission gear; 106-gear shaft; 107-lower gear; 108-half-tooth gear; 109-upper docking gear; 110-eccentric gear; 111-upper transmission gear; 112-upper transmission wheel; 113-conveyor belt; 114-driven wheel; 115-eccentric rotating rod; 116-slider; 117-pulling rotating rod; 118-leveling plate; 119-large half-tooth gear; 120-stamping gear; 121-stamping rotating rod; 122-conveyor roller; 123-inclined guide surface; 124-upper limit block; 1 25-internal gear; 201-stamping frame; 202-docking groove; 203-fixed knife; 204-upper mold; 205-lower mold; 206-upper cutter; 207-spring; 208-damper; 209-limiting frame; 210-baffle; 211-notch; 212-side slider; 213-reset spring; 214-triangle block; 215-upper support frame; 216-plate frame; 217-push arc block; 218-insert column; 219-insert hole; 220-stamping rod; 301-ejection plate; 302-lower ejector block; 303-transmission shaft; 304-lifting wheel; 305-lifting transmission belt; 306-lifting column. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Example: Reference Figure 1-Figure 10 A stamping die with a stable guiding structure includes a feeding device, the feeding device includes a feeding rack 101, the feeding device is used to feed the metal sheet to be stamped, the feeding device is provided with a stamping device, the stamping device includes a stamping rack 201, the stamping rack 201 is fixedly mounted on the feeding rack 101, the stamping device is used to cut and stamp the metal sheet, the stamping device is provided with an ejection device, the ejection device includes an ejection plate 301, the ejection plate 301 is slidably mounted on the stamping rack 201, and the ejection device is used to push out the processed metal sheet.

[0030] like Figure 2-Figure 4As shown, the feeding device includes a bottom motor 102 arranged below the feeding frame 101, a motor gear 103 is fixedly installed on the motor shaft of the bottom motor 102, a gear shaft 106 is rotatably installed on the feeding frame 101, an internal transmission gear 105, a half-tooth gear 108 and a large half-tooth gear 119 are fixedly installed on the gear shaft 106, an output transmission belt 104 is wound around the motor gear 103 and the internal transmission gear 105, a lower gear 107 is rotatably installed on the feeding frame 101, an internal gear 125 is fixedly installed on the lower gear 107, the lower gear 107 is meshed with the half-tooth gear 108, and an upper docking gear 125 is rotatably installed on the feeding frame 101. 109 and the eccentric gear 110, the upper docking gear 109 is meshed with the eccentric gear 110, an inclined guide surface 123 is provided on the feed rack 101, an upper limit block 124 is fixedly installed on the feed rack 101, a stamping gear 120 is rotatably installed on the feed rack 101, a stamping rotating rod 121 is eccentrically rotatably installed on the stamping gear 120, the stamping gear 120 is meshed with the large half-tooth gear 119, when the half-tooth gear 108 is meshed with the lower gear 107, the half-tooth gear 108 is disengaged from the upper docking gear 109, and when the half-tooth gear 108 is meshed with the upper docking gear 109, the half-tooth gear 108 is disengaged from the lower gear 107.

[0031] like Figure 2-Figure 4 As shown, a straightening mechanism is provided on the feed rack 101, and the straightening mechanism includes a slider 116 slidably mounted on the feed rack 101, an eccentric rotating rod 115 is rotatably mounted on the slider 116, and the eccentric rotating rod 115 is eccentrically rotatably mounted with the eccentric gear 110, and two straightening plates 118 are slidably mounted on the feed rack 101, and a pulling rotating rod 117 is rotatably mounted on the straightening plate 118, and the pulling rotating rod 117 is rotatably mounted with the slider 116.

[0032] like Figure 2-Figure 4 As shown, a conveying mechanism is provided on the feed rack 101, and the conveying mechanism includes an upper transmission wheel 112 and a driven wheel 114 rotatably mounted on the feed rack 101, a conveying belt 113 is wrapped around the upper transmission wheel 112 and the driven wheel 114, an upper transmission gear 111 is fixedly mounted on the upper transmission wheel 112, the upper transmission gear 111 is meshed with the upper docking gear 109, and a conveying roller 122 is rotatably mounted on the feed rack 101.

[0033] The metal sheet to be stamped is put into the feed rack 101, and the bottom motor 102 rotates to drive the motor gear 103 to rotate, and the output transmission belt 104 drives the internal transmission gear 105 and the gear shaft 106 to rotate, thereby driving the half-toothed gear 108 and the large half-toothed gear 119 to rotate, and the large half-toothed gear 119 rotates to drive the stamping gear 120 to rotate intermittently, thereby driving the stamping rotating rod 121 to rotate, and the half-toothed gear 108 drives the lower gear 107 and the internal gear 125 to rotate intermittently, and the half-toothed gear 108 drives the upper docking gear 109 to rotate intermittently, and the upper docking gear 109 rotates intermittently. The gear 109 drives the eccentric gear 110 and the upper transmission gear 111 to rotate. The rotation of the eccentric gear 110 drives the eccentric rotating rod 115 to rotate, thereby driving the slider 116 to slide, thereby driving the two straightening plates 118 to move closer to or away from each other. The metal sheet entering the feed rack 101 is straightened by the straightening plates 118. The upper transmission gear 111 drives the upper transmission wheel 112 to rotate, thereby driving the conveyor belt 113 to convey the metal sheet. The conveying roller 122 supports and assists in conveying the metal sheet, and the inclined guide surface 123 centers the metal sheet.

[0034] When the conveyor belt 113 conveys the metal sheet, the leveling plate 118 straightens the metal sheet. When the conveyor belt 113 stops, the leveling plate 118 stops.

[0035] like Figure 5-Figure 8 As shown, the stamping device includes a lower mold 205 fixedly mounted on a stamping frame 201, an upper mold 204 is slidably mounted on the stamping frame 201, a stamping rod 220 is rotatably mounted on the upper mold 204, the stamping rod 220 is rotatably mounted with a stamping rotating rod 121, a fixed knife 203 is fixedly mounted on the stamping frame 201, an upper cutting knife 206 is slidably mounted on the upper mold 204, a damper 208 is fixedly mounted on the upper mold 204, a spring 207 is arranged between the upper mold 204 and the upper cutting knife 206, a limiting frame 209 is fixedly mounted on the stamping frame 201, a baffle 210 is slidably mounted on the limiting frame 209, and two notches 211 are arranged on the baffle 210.

[0036] like Figure 5-Figure 8 As shown, two lifting mechanisms are provided on the upper mold 204, and the lifting mechanisms include a side slider 212 slidably mounted on the upper mold 204, a return spring 213 is provided between the side slider 212 and the upper mold 204, an upper support frame 215 is fixedly mounted on the stamping frame 201, a triangular block 214 and a plate frame 216 are fixedly mounted on the side slider 212, and a push-open arc block 217 is fixedly mounted inside the plate frame 216.

[0037] like Figure 5-Figure 8 As shown, the punching frame 201 is provided with an alignment mechanism, which includes a docking groove 202 provided on the punching frame 201 , an insertion column 218 is fixedly mounted on the upper die 204 , and an insertion hole 219 is provided on the lower die 205 .

[0038] The metal sheet is transported to the baffle 210 and blocked by the baffle 210. At this time, the conveyor belt 113 stops moving, and the punching rotating rod 121 rotates to drive the punching rod 220 to rotate, thereby driving the upper mold 204 to descend along the punching frame 201, thereby driving the upper cutter 206 to descend, and the metal sheet is first cut by the upper cutter 206 and the fixed knife 203, and then the upper mold 204 continues to descend, the spring 207 is compressed, and the metal sheet is stamped by the upper mold 204 and the lower mold 205. The upper mold 204 is inserted into the docking groove 202, and the insertion column 218 is inserted into the insertion hole 219 for guiding and positioning. When the upper mold 204 descends, it will drive the plate frame 216 and the push-open arc block 217 to descend. When the push-open arc block 217 contacts the baffle 210, the baffle 210 will push the push-open arc block 217 and the side slider 212 slides along the upper mold 204, and the return spring 213 is stretched. When the arc block 217 is pushed away and reaches the notch 211, the return spring 213 rebounds, causing the arc block 217 to enter the notch 211. When the upper mold 204 completes stamping and rises, the arc block 217 will drive the baffle 210 to rise along the limit frame 209. At this time, the stamped metal sheet can be lifted and slid out through the ejection plate 301. When the triangular block 214 rises to the upper support frame 215, the triangular block 214 and the side slide block 212 are pushed outward under the action of the upper support frame 215, and the return spring 213 is stretched, causing the arc block 217 to leave the notch 211. The baffle 210 slides downward along the limit frame 209 under the action of gravity and resets, and the baffle 210 blocks the next arriving metal sheet again.

[0039] like Fig. 9 , Fig.10 As shown, the ejection device includes a transmission shaft 303 rotatably mounted on the punching frame 201, the transmission shaft 303 is fixedly mounted on the internal gear 125, a lifting wheel 304 is rotatably mounted on the punching frame 201, a lifting transmission belt 305 is wound around the lifting wheel 304 and the internal gear 125, four lifting columns 306 are arranged on the inner side of the lifting transmission belt 305, and a lower ejector block 302 is fixedly mounted on the ejection plate 301.

[0040] The internal gear 125 rotates to lift the transmission belt 305, thereby driving the lifting column 306 to move. The lifting column 306 lifts the lower ejector block 302 and the ejector plate 301. The ejector plate 301 slides upward along the stamping frame 201, and one end of the stamped metal sheet is lifted by the ejector plate 301. Then the stamped metal sheet slides out. When the lifting column 306 leaves the bottom of the lower ejector block 302, the ejector plate 301 and the lower ejector block 302 are reset under the action of gravity.

[0041] When the conveyor belt 113 conveys the metal sheet, the straightening plate 118 straightens the metal sheet, the baffle 210 fits with the punching frame 201, and the upper mold 204 is located on top; when the conveyor belt 113 stops, the straightening plate 118 stops, the upper mold 204 descends and then rises to punch the metal sheet, the upper mold 204 lifts the baffle 210, and the ejector plate 301 ejects the stamped metal sheet and then resets the baffle 210.

[0042] The working principle of a stamping die with a stable guide structure disclosed in the present invention is as follows: a metal sheet to be stamped is put in from a feed rack 101, a bottom motor 102 rotates to drive a motor gear 103 to rotate, and an output transmission belt 104 drives an internal transmission gear 105 and a gear shaft 106 to rotate, thereby driving a half-toothed gear 108 and a large half-toothed gear 119 to rotate, and the large half-toothed gear 119 rotates to drive a stamping gear 120 to rotate intermittently, thereby driving a stamping rotating rod 121 to rotate, and the half-toothed gear 108 drives a lower gear 107 and an internal gear 125 to rotate intermittently, and the half-toothed gear 108 drives an upper gear 107 and an inner gear 125 to rotate intermittently, and the half-toothed gear 108 drives an upper gear 108 to rotate intermittently. The connecting gear 109 rotates intermittently, and the upper connecting gear 109 drives the eccentric gear 110 and the upper transmission gear 111 to rotate. The rotation of the eccentric gear 110 drives the eccentric rotating rod 115 to rotate, thereby driving the slider 116 to slide, thereby driving the two straightening plates 118 to move closer to or away from each other, and the metal sheet entering the feed rack 101 is straightened by the straightening plates 118. The upper transmission gear 111 drives the upper transmission wheel 112 to rotate, thereby driving the conveyor belt 113 to convey the metal sheet, the conveying roller 122 supports and assists in conveying the metal sheet, and the inclined guide surface 123 centers the metal sheet. The metal sheet is transported to the baffle 210 and blocked by the baffle 210. At this time, the conveyor belt 113 stops moving, and the punching rotating rod 121 rotates to drive the punching rod 220 to rotate, thereby driving the upper mold 204 to descend along the punching frame 201, thereby driving the upper cutter 206 to descend, and the metal sheet is first cut by the upper cutter 206 and the fixed knife 203, and then the upper mold 204 continues to descend, the spring 207 is compressed, and the metal sheet is stamped by the upper mold 204 and the lower mold 205. The upper mold 204 is inserted into the docking groove 202, and the insertion column 218 is inserted into the insertion hole 219 for guiding and positioning. When the upper mold 204 descends, it will drive the plate frame 216 and the push-open arc block 217 to descend. When the push-open arc block 217 contacts the baffle 210, the baffle 210 will push the push-open arc block 217 and the side slider 212 slides along the upper mold 204, and the return spring 213 is stretched. When the arc block 217 is pushed away and reaches the notch 211, the return spring 213 rebounds, causing the arc block 217 to enter the notch 211. When the upper mold 204 completes stamping and rises, the arc block 217 will drive the baffle 210 to rise along the limit frame 209. At this time, the stamped metal sheet can be lifted and slid out through the ejection plate 301. When the triangular block 214 rises to the upper support frame 215, the triangular block 214 and the side slide block 212 are pushed outward under the action of the upper support frame 215, and the return spring 213 is stretched, causing the arc block 217 to leave the notch 211. The baffle 210 slides downward along the limit frame 209 under the action of gravity and resets, and the baffle 210 blocks the next arriving metal sheet again.The internal gear 125 rotates to lift the transmission belt 305, thereby driving the lifting column 306 to move. The lifting column 306 lifts the lower ejector block 302 and the ejector plate 301. The ejector plate 301 slides upward along the stamping frame 201, and one end of the stamped metal sheet is lifted by the ejector plate 301. Then the stamped metal sheet slides out. When the lifting column 306 leaves the bottom of the lower ejector block 302, the ejector plate 301 and the lower ejector block 302 are reset under the action of gravity.

[0043] When the conveyor belt 113 conveys the metal sheet, the straightening plate 118 straightens the metal sheet, the baffle 210 fits with the punching frame 201, and the upper mold 204 is located on top; when the conveyor belt 113 stops, the straightening plate 118 stops, the upper mold 204 descends and then rises to punch the metal sheet, the upper mold 204 lifts the baffle 210, and the ejector plate 301 ejects the stamped metal sheet and then resets the baffle 210.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stamping die with a stable guiding structure, comprising a feeding device, characterized in that: The feeding device comprises a feeding frame (101), the feeding device is used to feed the metal sheet to be punched, the feeding device is provided with a punching device, the punching device comprises a punching frame (201), the punching frame (201) is fixedly mounted on the feeding frame (101), the punching device is used to cut and punch the metal sheet, the punching device is provided with an ejection device, the ejection device comprises an ejection plate (301), the ejection plate (301) is slidably mounted on the punching frame (201), and the ejection device is used to push out the processed metal sheet; The feeding device comprises a bottom motor (102) arranged below a feeding frame (101), a motor gear (103) being fixedly mounted on the motor shaft of the bottom motor (102), a gear shaft (106) being rotatably mounted on the feeding frame (101), an internal transmission gear (105), a half-tooth gear (108) and a large half-tooth gear (119) being fixedly mounted on the gear shaft (106), an output transmission belt (104) being wound around the motor gear (103) and the internal transmission gear (105), a lower gear (107) being rotatably mounted on the feeding frame (101), an internal gear (125) being fixedly mounted on the lower gear (107), the lower gear (107) being meshed with the half-tooth gear (108), an upper docking gear (125) being rotatably mounted on the feeding frame (101), and a lower gear (107) being meshed with the half-tooth gear (108). 09) and an eccentric gear (110), the upper docking gear (109) is meshed with the eccentric gear (110), an inclined guide surface (123) is provided on the feed frame (101), an upper limit block (124) is fixedly installed on the feed frame (101), a punching gear (120) is rotatably installed on the feed frame (101), a punching rotating rod (121) is eccentrically rotatably installed on the punching gear (120), the punching gear (120) is meshed with the large half-toothed gear (119), when the half-toothed gear (108) is meshed with the lower gear (107), the half-toothed gear (108) is disengaged from the upper docking gear (109), when the half-toothed gear (108) is meshed with the upper docking gear (109), the half-toothed gear (108) is disengaged from the lower gear (107); The feed rack (101) is provided with a straightening mechanism, and the straightening mechanism includes a slider (116) slidably mounted on the feed rack (101), an eccentric rotating rod (115) is rotatably mounted on the slider (116), the eccentric rotating rod (115) and the eccentric gear (110) are eccentrically rotatably mounted, two straightening plates (118) are slidably mounted on the feed rack (101), a pulling rotating rod (117) is rotatably mounted on the straightening plate (118), and the pulling rotating rod (117) and the slider (116) are rotatably mounted.

2. The stamping die with a stable guide structure according to claim 1, characterized in that: The feed rack (101) is provided with a conveying mechanism, which comprises an upper transmission wheel (112) and a driven wheel (114) rotatably mounted on the feed rack (101); a conveying belt (113) is wound around the upper transmission wheel (112) and the driven wheel (114); an upper transmission gear (111) is fixedly mounted on the upper transmission wheel (112); the upper transmission gear (111) is meshed with an upper docking gear (109); and a conveying roller (122) is rotatably mounted on the feed rack (101).

3. The stamping die with a stable guide structure according to claim 1, characterized in that: The punching device comprises a lower die (205) fixedly mounted on a punching frame (201); an upper die (204) slidably mounted on the punching frame (201); a punching rod (220) rotatably mounted on the upper die (204); the punching rod (220) and a punching rotating rod (121) are rotatably mounted; a fixed knife (203) is fixedly mounted on the punching frame (201); an upper cutting knife (206) is slidably mounted on the upper die (204); a damper (208) is fixedly mounted on the upper die (204); a spring (207) is arranged between the upper die (204) and the upper cutting knife (206); a limiting frame (209) is fixedly mounted on the punching frame (201); a baffle (210) is slidably mounted on the limiting frame (209); and two notches (211) are arranged on the baffle (210).

4. The stamping die with a stable guide structure according to claim 3, characterized in that: The upper mold (204) is provided with two lifting mechanisms, and the lifting mechanisms include a side slider (212) slidably mounted on the upper mold (204), a return spring (213) is arranged between the side slider (212) and the upper mold (204), an upper support frame (215) is fixedly mounted on the stamping frame (201), a triangular block (214) and a plate frame (216) are fixedly mounted on the side slider (212), and a push-open arc block (217) is fixedly mounted inside the plate frame (216).

5. The stamping die with a stable guide structure according to claim 3, characterized in that: The punching frame (201) is provided with an alignment mechanism, which comprises a docking groove (202) provided on the punching frame (201), an insertion column (218) is fixedly mounted on the upper die (204), and an insertion hole (219) is provided on the lower die (205).

6. The stamping die with a stable guide structure according to claim 1, characterized in that: The ejection device comprises a transmission shaft (303) rotatably mounted on the punching frame (201), the transmission shaft (303) and the internal gear (125) being fixedly mounted, a lifting wheel (304) being rotatably mounted on the punching frame (201), a lifting transmission belt (305) being wound around the lifting wheel (304) and the internal gear (125), four lifting columns (306) being arranged on the inner side of the lifting transmission belt (305), and a lower ejector block (302) being fixedly mounted on the ejection plate (301).

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