CN103143615A - Cutter blade punching device - Google Patents
Cutter blade punching device Download PDFInfo
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- CN103143615A CN103143615A CN2013100353422A CN201310035342A CN103143615A CN 103143615 A CN103143615 A CN 103143615A CN 2013100353422 A CN2013100353422 A CN 2013100353422A CN 201310035342 A CN201310035342 A CN 201310035342A CN 103143615 A CN103143615 A CN 103143615A
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- chute
- feeder
- leveling
- punching device
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Abstract
The invention discloses a cutter blade punching device which comprises a punching machine and a programmable controller; the punching machine comprises a frame, a punching cutter holder, a punching cutter, a driving motor and a workbench; a feed opening, a discharge port, a feeding channel and a pushing mechanism which pushes a cutter blade in the feeding channel to move to a position below the punching cutter are arranged on the workbench; the feed opening and the discharge port are communicated with the feeding channel; a chute which is inclined from top to bottom is arranged at the discharge port; the lower end of the chute is provided with a transmission mechanism; an outlet on the lower end of the chute is positioned above a transmission belt of the transmission mechanism; the outer end of the transmission mechanism is connected with a leveling mechanism; the inlet of the leveling mechanism is horizontally opposite to the transmission direction of the transmission belt of the transmission mechanism; and the outlet end of the leveling mechanism is provided with a cutter blade collection mechanism. The cutter blade punching device has the advantages of manpower saving, high production efficiency, low production cost and high cutter blade punching quality.
Description
Technical field
The present invention relates to the blade processing technique field, is specifically a kind of blade punching device.
Background technology
Blade punching is one basic working procedure of blade processing, and the blade punching device of prior art is generally machine tool for punching, and its structure generally comprises frame, stamping knife frame, stamping knife, drive motors and workbench; The blade that manually will treat punching is placed on the workbench of lathe and carries out punching, and the blade that has rushed the hole may bend, and therefore carries out leveling on the leveling lathe by manually being placed on again, proofreaies and correct blade after leveling again by carrying out the colligation warehouse-in after manual alignment.This blade punching of prior art, leveling and arrange that colligation need to expend a large amount of manpowers and many lathes carry out, and production efficiency is low, and production cost is higher.Particularly when artificial punching, if the factors such as that blade is placed is not in place, wrist shake are easy to cause the blade punching position inaccurate, affect the quality of production of blade.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the defective of above prior art, and a kind of manpower, production efficiency is high, production cost is low and the blade punching quality is high blade punching device saved is provided.
technical solution of the present invention is, a kind of blade punching device with following structure is provided: it comprises perforating press and Programmable Logic Controller, described perforating press comprises frame, the stamping knife frame, stamping knife, drive motors and workbench, described workbench is provided with charging aperture, discharging opening, feeding-passage and promotion feeding-passage inner blade move to the pusher of stamping knife below, described charging aperture, discharging opening and feeding-passage are connected, described discharging opening place is provided with a chute that from up to down tilts, the lower end of described chute is provided with a transmission mechanism, the lower end outlet of described chute is positioned at the driving-belt top of transmission mechanism, the outer end of described transmission mechanism connects a levelling gear, and the entrance of described levelling gear is relative with the transmission direction level of the driving-belt of transmission mechanism, and the port of export of levelling gear is provided with the blade collecting mechanism.
After adopting above structure, blade punching device of the present invention compared with prior art has the following advantages: this blade punching device integrates punching, leveling, collection, arrangement blade; When punching, blade is entered in feeding-passage by charging aperture, pusher moves to the feeding-passage inner blade below stamping knife, blade is after punching, next treats to incite somebody to action by the blade of punching under the effect of pusher, and the blade of punching is pushed in the chute at discharging opening place, blade is because the gravity of self slides to transmission mechanism along chute, the driving-belt of transmission mechanism is delivered to blade and carries out leveling in levelling gear, and the blade after leveling enters through the port of export of levelling gear and carries out arrange packets in the blade collecting mechanism and penetrate the storehouse.Whole process only needs a people just can control, and punching, leveling, collection, each operation of arrangement blade are uninterrupted operation, therefore this blade punching device is saved manpower, production efficiency is high, production cost is low, during blade punching, blade mobile distance in feeding-passage is controlled by pusher, therefore the blade punching quality is high, the inaccurate situation that waits the quality of production that affects blade in blade punching position can not occur.
As preferably, described pusher comprises the slide block that is slidably fitted on workbench and slider-actuated mechanism, connect a scraping wings on described slide block, described scraping wings matched in clearance is in feeding-passage, scraping wings is the outside that its front end face when pushing state open is positioned at charging aperture, and scraping wings be its front end when drawing in state with the blade of the charging aperture bottom be pushed into stamping knife under.
Described slider-actuated mechanism comprises the guiding skewback that is fixedly connected on slide block, described guiding skewback is provided with the inclined-plane of high outside and low outside and smooth transition, be fixedly connected with a pulley on described stamping knife frame, and the outer circle wall of pulley is fitted all the time with the inclined-plane of guiding skewback; Described slide block is provided with reset tension spring, and an end of described reset tension spring is fixedly connected with slide block, and the other end of reset tension spring is fixedly connected with workbench.Pusher is when work, and the stamping knife frame moves downward, and the pulley on the stamping knife frame promotes the guiding skewback and slide block outwards pulls open, and this moment, scraping wings outwards moved to the outside that its front end face is positioned at charging aperture; The stamping knife frame moves upward, slide block moves inward under the effect of reset tension spring, this moment, scraping wings promoted the blade of the charging aperture bottom to stamping knife, when the stamping knife frame moves downward again, stamping knife is with the blade punching of stamping knife below, scraping wings outwards moves to again the outside of charging aperture simultaneously, and by that analogy, scraping wings carries out punching below shifting one by one blade onto stamping knife.
As preferably, described chute comprises the first chute and the second chute, and described the second chute is positioned at the below of the first chute, and the discharging opening place of described chute upper end is provided with a cutting plate, the upper end of described cutting plate and discharging opening two side are hinged, and the lower end of cutting plate is mutually concordant with the upper end of the second chute; On the frame of the top, lower end of described cutting plate, an electromagnet is installed, and is made the lower end of cutting plate upwards concordant with the upper end of the first chute under the state of electromagnet energising, the power-on circuit of described electromagnet is connected by wire with Programmable Logic Controller.Cutting plate is interval conducting the first chute and the second chute under the effect of electromagnet, slides to transmission mechanism through the first chute and the second chute thereby blade is circulated successively, thereby improved the operating efficiency of perforating press.
As preferably, described transmission mechanism comprises transmission bracket and the driving-belt that is arranged on transmission bracket, be fixedly connected with two groups of gathering sills that coordinate with the first chute and the second chute lower end on described transmission bracket, every group of gathering sill comprises two guide plates that vertically arrange, and is provided with the gap between the bottom of each guide plate and driving-belt; A hinged barrier plate in every group of gathering sill, the lower end of described barrier plate and driving-belt are fitted.Gathering sill on driving frame can play the blade on driving-belt is played guide effect, prevents that blade from moving process, angular deflection occuring and affect the blade leveling and arrange; In every group of gathering sill, hinged barrier plate can play the effect of adjustable blade spacing between on driving-belt, thereby avoids blade to overlap or stack etc.
As preferably, described levelling gear comprises leveling support, leveling motor and charging pressure roller, described leveling support is provided with the horizontal leveling pressure roller of many groups, every group of leveling pressure roller comprise two setting up and down and between be provided with the leveling pressure roller in the gap of passing through for blade, and the gap of respectively organizing between the leveling pressure roller is relative with the transmission direction level of driving-belt; The excircle of described charging pressure roller and the upper surface of driving-belt are fitted; Described leveling motor all is in transmission connection with leveling pressure roller and charging pressure roller.This levelling gear is when work, and the charging pressure roller enters leveling in the leveling pressure roller with making blade coordinating of driving-belt, and the cooperation of organizing the leveling pressure roller makes crooked blade smooth more.
As preferably, described blade collecting mechanism comprises blade feeder and blade storage tank, described blade feeder comprises the first blade feeder and horizontally disposed the second blade feeder that is obliquely installed, the upper end entrance of described the first blade feeder is arranged on the outlet below of levelling gear, and the lower end outlet of the first blade feeder is connected with the arrival end of the second blade feeder; One lateral wall of described the second blade feeder is provided with the blade outlet of the intracavity inter-connection of the one and second blade feeder, another lateral wall of described the second blade feeder is provided with and ejects cylinder, and the piston rod that ejects cylinder is relative with blade outlet level, be provided with an inductive probe in described the second blade feeder, described inductive probe all is connected with Programmable Logic Controller with the magnetic valve that is connected cylinder; Described blade storage tank is connected with the blade outlet.Through the blade of levelling gear leveling in the first blade feeder slides into the second blade feeder, when in inductive probe perception the second blade feeder in the second blade feeder, blade being arranged, Controlled by Programmable Controller ejects the magnetic valve of cylinder and opens, thereby the piston rod that ejects cylinder is pushed out to blade in the blade storage tank from the blade outlet; Blade is arranged in the blade storage tank, then with manually the blade colligation that arranges being put in storage.
As a kind of improvement, the upper end of described the first blade feeder is provided with V font flange.The V font flange that the upper end of this first blade feeder is provided with can conveniently receive the blade that shifts out from the levelling gear port of export, thereby blade is entered in the first blade feeder.
As a kind of improvement, be fixedly connected with a blade holder on the workbench at described charging aperture top, be provided with the draw-in groove that stacks for blade in described blade holder.When blade punches, can in advance the blade level be overlayed in the draw-in groove of blade holder, and need not place blade one by one in charging aperture, further promoted production efficiency.
Description of drawings
Fig. 1 is the overall structure schematic diagram of blade punching device of the present invention.
Fig. 2 is the partial structurtes schematic diagram of blade punching device of the present invention.
Fig. 3 is the A section structure for amplifying schematic diagram of blade punching device of the present invention in Fig. 2.
Fig. 4 is the broken section structural representation of blade punching device feeding-passage of the present invention.
Fig. 5 is the structural representation of the chute of blade punching device of the present invention.
Fig. 6 is the structural representation of cutting plate conducting second chute of blade punching device of the present invention.
Fig. 7 is the structural representation of cutting plate conducting first chute of blade punching device of the present invention.
Fig. 8 is the broken section structural representation of the blade collecting mechanism of blade punching device of the present invention.
As shown in the figure:
1, perforating press, 2, frame, 3, the stamping knife frame, 4, stamping knife, 5, drive motors, 6, workbench, 7, charging aperture, 8, feeding-passage, 9, discharging opening, 10, chute, 11, the first chute, 12, the second chute, 13, transmission mechanism, 14, driving-belt, 15, transmission bracket, 16, gathering sill, 17, guide plate, 18, barrier plate, 19, levelling gear, 20, the leveling support, 21, the charging pressure roller, 22, the leveling pressure roller, 23, the blade collecting mechanism, 24, the first blade feeder, 25, V font flange, 26, the second blade feeder, 27, the blade storage tank, 28, eject cylinder, 29, slide block, 30, the guiding skewback, 31, pulley, 32, reset tension spring, 33, scraping wings, 34, blade holder, 35, draw-in groove, 36, cutting plate, 37, electromagnet, 38, the blade outlet, 39, piston rod, 40, inductive probe.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and as can be known shown in Figure 5, blade punching device of the present invention, it comprises perforating press 1 and Programmable Logic Controller, described perforating press 1 comprises frame 2, stamping knife frame 3, stamping knife 4, drive motors 5 and workbench 6, described workbench 6 is provided with charging aperture 7, discharging opening 9, feeding-passage 8 and promotion feeding-passage 8 inner blades move to the pusher of stamping knife 4 belows, described charging aperture 7, discharging opening 9 and feeding-passage 8 are connected, described discharging opening 9 places are provided with a chute 10 that from up to down tilts, the lower end of described chute 10 is provided with a transmission mechanism 13, the lower end outlet of described chute 10 is positioned at driving-belt 14 tops of transmission mechanism 13, the outer end of described transmission mechanism 13 connects a levelling gear 19, and the entrance of described levelling gear 19 is relative with the transmission direction level of the driving-belt 14 of transmission mechanism 3, and the port of export of levelling gear 19 is provided with blade collecting mechanism 23.
Described pusher comprises the slide block 29 that is slidably fitted on workbench 6 and slider-actuated mechanism, connect a scraping wings 33 on described slide block 29, described scraping wings 33 matched in clearance are in feeding-passage 8, scraping wings 33 is the outside that its front end face when pulling open state is positioned at charging aperture 7, and scraping wings 33 be its front end when drawing in state with the blade of charging aperture 7 bottoms be pushed into stamping knife 4 under.
Described slider-actuated mechanism comprises the guiding skewback 30 that is fixedly connected on slide block 29, described guiding skewback 30 is provided with the inclined-plane of high outside and low outside and smooth transition, be fixedly connected with a pulley 31 on described stamping knife frame 3, and the outer circle wall of pulley 31 is fitted all the time with the inclined-plane of guiding skewback 30; Described slide block 30 is provided with reset tension spring 32, and an end of described reset tension spring 32 is fixedly connected with slide block 29, and the other end of reset tension spring 32 is fixedly connected with workbench 6.
As shown in Figure 6 and Figure 7, described chute 10 comprises the first chute 11 and the second chute 12, described the second chute 12 is positioned at the below of the first chute 11, discharging opening 9 places of described chute 10 upper ends are provided with a cutting plate 36, the upper end of described cutting plate 36 and discharging opening 9 two sides are hinged, and the lower end of cutting plate 36 is mutually concordant with the upper end of the second chute 12; On the frame 2 of the top, lower end of described cutting plate 36, an electromagnet 37 is installed, and make the lower end of cutting plate 36 upwards concordant with the upper end of the first chute 11 under the state of electromagnet 37 energisings, the power-on circuit of described electromagnet 37 is connected by wire with Programmable Logic Controller.Cutting plate 36 is interval conducting the first chute 11 and the second chute 12 under the effect of electromagnet 37, slides to transmission mechanism through the first chute 11 and the second chute 12 thereby blade is circulated successively, thereby improved the operating efficiency of perforating press.
Described transmission mechanism 13 comprises transmission bracket 15 and the driving-belt 14 that is arranged on transmission bracket 15, be fixedly connected with two groups of gathering sills 16 that coordinate with the first chute 11 and the second chute 12 lower ends on described transmission bracket 15, every group of gathering sill 16 comprises two guide plates 17 that vertically arrange, and is provided with the gap between the bottom of each guide plate 17 and driving-belt 14; Every group of interior hinged barrier plate 18 of gathering sill 16, the lower end of described barrier plate 18 and driving-belt 14 are fitted.
Described levelling gear comprises leveling support 20, leveling motor and charging pressure roller 21, described leveling support 20 is provided with the horizontal leveling pressure roller 22 of many groups, every group of leveling pressure roller 22 comprise two setting up and down and between be provided with the leveling pressure roller 22 in the gap of passing through for blade, and the gap of respectively organizing between leveling pressure roller 22 is relative with the transmission direction level of driving-belt 14, is also that the lower end outlet of driving-belt 14 is relative with the gap level between each group leveling pressure roller 22; The upper surface of the excircle of described charging pressure roller 21 and driving-belt 14 is fitted; Described leveling motor all is in transmission connection with leveling pressure roller 22 and charging pressure roller 21.
As shown in Figure 8, described blade collecting mechanism comprises blade feeder and blade storage tank 27, described blade feeder comprises the first blade feeder 24 and horizontally disposed the second blade feeder 26 that is obliquely installed, the upper end entrance of described the first blade feeder 24 is arranged on the outlet below of levelling gear, and the lower end outlet of the first blade feeder 24 is connected with the arrival end of the second blade feeder 26; One lateral wall of described the second blade feeder 26 is provided with the blade outlet 38 of the intracavity inter-connection of the one and second blade feeder 26, another lateral wall of described the second blade feeder 26 is provided with and ejects cylinder 28, and the piston rod 39 that ejects cylinder 28 is relative with blade outlet 38 levels, be provided with an inductive probe 40 in described the second blade feeder 26, described inductive probe 40 all is connected with Programmable Logic Controller with the magnetic valve that is connected cylinder 28; Described blade storage tank 27 is connected with blade outlet 38.Through the blade of levelling gear 19 leveling in the first blade feeder 24 slides into the second blade feeder 26, when in inductive probe 40 perception the second blade feeders 26 in the second blade feeder 26, blade being arranged, Controlled by Programmable Controller ejects the magnetic valve of cylinder 28 and opens, thereby the piston rod 39 that ejects cylinder 28 is pushed out to blade in blade storage tank 27 from the blade outlet; Blade is arranged in blade storage tank 27, then with manually the blade colligation that arranges being put in storage.
The upper end of described the first blade feeder 24 is provided with V font flange 25.The V font flange 25 that the upper end of this first blade feeder 24 is provided with can conveniently receive the blade that shifts out from levelling gear 19 ports of export, thereby blade is entered in the first blade feeder 24.
Be fixedly connected with a blade holder 34 on the workbench 6 at described charging aperture 7 tops, be provided with the draw-in groove 35 that stacks for blade in described blade holder 34.
Claims (9)
1. blade punching device, it comprises perforating press (1) and Programmable Logic Controller, described perforating press (1) comprises frame (2), stamping knife frame (3), stamping knife (4), drive motors (5) and workbench (6), it is characterized in that: described workbench (6) is provided with charging aperture (7), discharging opening (9), feeding-passage (8) and promotion feeding-passage (8) inner blade move to the pusher of stamping knife (4) below, described charging aperture (7), discharging opening (9) and feeding-passage (8) are connected, described discharging opening (9) locates to be provided with a chute (10) that from up to down tilts, the lower end of described chute (10) is provided with a transmission mechanism (13), the lower end outlet of described chute (10) is positioned at driving-belt (14) top of transmission mechanism (13), the outer end of described transmission mechanism (13) connects a levelling gear (19), the entrance of described levelling gear (19) is relative with the transmission direction level of the driving-belt (14) of transmission mechanism (13), and the port of export of levelling gear (19) is provided with blade collecting mechanism (23).
2. blade punching device according to claim 1, it is characterized in that: described pusher comprises the slide block (29) that is slidably fitted on workbench (6) and slider-actuated mechanism, the upper scraping wings (33) that connects of described slide block (29), described scraping wings (33) matched in clearance is in feeding-passage (8), scraping wings (33) is the outside that its front end face when pushing state open is positioned at charging aperture (7), and scraping wings (33) be its front end when drawing in state with the blade of charging aperture (7) bottom be pushed into stamping knife (4) under.
3. blade punching device according to claim 2, it is characterized in that: described slider-actuated mechanism comprises the guiding skewback (30) that is fixedly connected on slide block (29), described guiding skewback (30) is provided with the inclined-plane of high outside and low outside and smooth transition, be fixedly connected with a pulley (31) on described stamping knife frame (3), and the outer circle wall of pulley (31) is fitted all the time with the inclined-plane of guiding skewback (30); Described slide block (30) is provided with reset tension spring (32), and an end of described reset tension spring (32) is fixedly connected with slide block (29), and the other end of reset tension spring (32) is fixedly connected with workbench (6).
4. blade punching device according to claim 1, it is characterized in that: described chute (10) comprises the first chute (11) and the second chute (12), described the second chute (12) is positioned at the below of the first chute (11), the discharging opening (9) of described chute (10) upper end locates to be provided with a cutting plate (36), the upper end of described cutting plate (36) and discharging opening (9) two side are hinged, and the lower end of cutting plate (36) is mutually concordant with the upper end of the second chute (12); The upper electromagnet (37) of installing of the frame (2) of the top, lower end of described cutting plate (36), and make the lower end of cutting plate (36) upwards concordant with the upper end of the first chute (11) under the state of electromagnet (37) energising, the power-on circuit of described electromagnet (37) is connected by wire with Programmable Logic Controller.
5. according to claim 1 or 4 described blade punching devices, it is characterized in that: described transmission mechanism (13) comprises transmission bracket (15) and is arranged on driving-belt (14) on transmission bracket (15), be fixedly connected with two groups of gathering sills (16) that coordinate with the first chute (11) and the second chute (12) lower end on described transmission bracket (15), every group of gathering sill (16) comprises two guide plates (17) that vertically arrange, and is provided with the gap between the bottom of each guide plate (17) and driving-belt (14); A hinged barrier plate (18) in every group of gathering sill (16), the lower end of described barrier plate (18) and driving-belt (14) are fitted.
6. blade punching device according to claim 1, it is characterized in that: described levelling gear comprises leveling support (20), leveling motor and charging pressure roller (21), described leveling support (20) is provided with the horizontal leveling pressure roller (22) of many groups, every group of leveling pressure roller (22) comprise two setting up and down and between be provided with the leveling pressure roller (22) in the gap of passing through for blade, and the gap of respectively organizing between leveling pressure roller (22) is relative with the transmission direction level of driving-belt (14); The upper surface of the excircle of described charging pressure roller (21) and driving-belt (14) is fitted; Described leveling motor all is in transmission connection with leveling pressure roller (22) and charging pressure roller (21).
7. blade punching device according to claim 1, it is characterized in that: described blade collecting mechanism comprises blade feeder and blade storage tank (27), described blade feeder comprises the first blade feeder (24) and horizontally disposed the second blade feeder (26) that is obliquely installed, the upper end entrance of described the first blade feeder (24) is arranged on the outlet below of levelling gear, and the lower end outlet of the first blade feeder (24) is connected with the arrival end of the second blade feeder (26); One lateral wall of described the second blade feeder (26) is provided with the blade outlet (38) of the intracavity inter-connection of the one and second blade feeder (26), another lateral wall of described the second blade feeder (26) is provided with and ejects cylinder (28), and the piston rod (39) that ejects cylinder (28) is relative with blade outlet (38) level, be provided with an inductive probe (40) in described the second blade feeder (26), described inductive probe (40) all is connected with Programmable Logic Controller with the magnetic valve that is connected cylinder (28); Described blade storage tank (27) is connected with blade outlet (38).
8. blade punching device according to claim 7, it is characterized in that: the upper end of described the first blade feeder (24) is provided with V font flange (25).
9. blade punching device according to claim 1 is characterized in that: be fixedly connected with a blade holder (34) on the workbench (6) at described charging aperture (7) top, be provided with the draw-in groove (35) that stacks for blade in described blade holder (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310035342.2A CN103143615B (en) | 2013-01-28 | 2013-01-28 | Cutter blade punching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310035342.2A CN103143615B (en) | 2013-01-28 | 2013-01-28 | Cutter blade punching device |
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| CN103143615A true CN103143615A (en) | 2013-06-12 |
| CN103143615B CN103143615B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310035342.2A Expired - Fee Related CN103143615B (en) | 2013-01-28 | 2013-01-28 | Cutter blade punching device |
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| CN103381446A (en) * | 2013-07-22 | 2013-11-06 | 山东源泉机械有限公司 | Flue-cured tobacco clip automatic punching machine tool |
| CN104384290A (en) * | 2014-09-10 | 2015-03-04 | 台州市良曜成套设备有限公司 | Bar material cutting machine |
| CN108340438A (en) * | 2017-12-30 | 2018-07-31 | 何淳浩 | Pipe automatic punch machine |
| CN109622733A (en) * | 2019-01-25 | 2019-04-16 | 江阴市东泰型钢彩板有限公司 | A kind of accurate punch device of carrier bar |
| CN110369606A (en) * | 2019-08-03 | 2019-10-25 | 东莞市天誉箱包配件有限公司 | A kind of hardware tubing automatic punch machine |
| CN113210475A (en) * | 2021-04-17 | 2021-08-06 | 蔡剑杰 | Be used for highway guardrail press forming equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103381446A (en) * | 2013-07-22 | 2013-11-06 | 山东源泉机械有限公司 | Flue-cured tobacco clip automatic punching machine tool |
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| CN108340438A (en) * | 2017-12-30 | 2018-07-31 | 何淳浩 | Pipe automatic punch machine |
| CN109622733A (en) * | 2019-01-25 | 2019-04-16 | 江阴市东泰型钢彩板有限公司 | A kind of accurate punch device of carrier bar |
| CN110369606A (en) * | 2019-08-03 | 2019-10-25 | 东莞市天誉箱包配件有限公司 | A kind of hardware tubing automatic punch machine |
| CN110369606B (en) * | 2019-08-03 | 2021-02-26 | 东莞市天誉箱包配件有限公司 | Automatic punching machine for hardware pipes |
| CN113210475A (en) * | 2021-04-17 | 2021-08-06 | 蔡剑杰 | Be used for highway guardrail press forming equipment |
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| CN103143615B (en) | 2015-06-10 |
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