CN207899985U - A kind of progressive die - Google Patents

Abstract

The utility model is related to technical field of mold, disclose a kind of progressive die, including drawing die, reverse-drawing mold, precut mold and blanking die；Drawing die, including the first upper mold and the first lower die；Reverse-drawing mold, including the second upper mold and the second lower die, one end of the second upper mold are connect with the first upper mold, and one end of the second lower die is connect with the first lower die；Precut mold, including third upper mold and third lower die, one end of third upper mold are connect with the other end of the second upper mold, and one end of third lower die is connect with the other end of the second lower die, and third upper mold is oppositely arranged with third lower die；Blanking die, including the 4th upper mold and the 4th lower die, one end of the 4th upper mold are connect with the other end of third upper mold, and one end of the 4th lower die is connect with the other end of third lower die, and the 4th upper mold is oppositely arranged with the 4th lower die.The progressive die in the utility model embodiment improves the exterior quality of no flange tensioning member, to improve qualification rate, to improve production efficiency.

Description

A kind of progressive die

Technical field

The utility model is related to technical field of mold, more particularly to a kind of progressive die.

Background technology

Punching press be it is a kind of external force is applied to plank, band, tubing and proximate matter etc. by forcing press, be allowed in mold by Deformation force and generate plastic deformation, to obtain definite shape, size and performance product parts production technology.Punching press is with it Aerospace, aviation, military project, machinery, agricultural machinery, electronics, traffic and daily are widely used in high efficiency and high-precision The every field such as electric appliance.

With being constantly progressive and industrial rapid development, performance and matter of the people for stamping products for science and technology The requirement of amount is higher and higher, therefore stamping products develop progressively towards the direction of complication, diversification, high-performance, high quality, with This simultaneously, the former of product also develops progressively towards the direction of complication, high efficiency and long-life.

Currently, the molding without flange tensioning member is typically by the way of either simplex sequence punching press, by multiple mutual indepedent Mold on carry out punch process successively, until complete the final molding without flange tensioning member.But when using either simplex sequence punching press Mode when, due to needing in each independent mold to carry out punching press, be easy to cause no flange tensioning member for the first time Flow harden is generated when punching press, and the phenomenon that weighing wounded and scratching is easy tod produce in two times punch so as to cause no flange tensioning member, Influence the exterior quality of product so that the qualification rate of product is low, and then leads to the low production efficiency of product.

Utility model content

The technical issues of the utility model is solved is to provide for a kind of progressive die, can improve no flange tensioning member Exterior quality, to improve the qualification rate without flange tensioning member, to improve the production efficiency without flange tensioning member.

Above-mentioned technical problem is solved by the following technical programs：

A kind of progressive die, including drawing die, reverse-drawing mold, precut mold and blanking die；

The drawing die, including the first upper mold and the first lower die, first upper mold and first lower die are opposite to be set It sets；

The reverse-drawing mold, including the second upper mold and the second lower die, on one end of second upper mold and described first Mould connects, and one end of second lower die is connect with first lower die, and second upper mold is opposite with second lower die to be set It sets；

The precut mold, including third upper mold and third lower die, on one end of the third upper mold and described second The other end of mould connects, and one end of the third lower die is connect with the other end of second lower die, the third upper mold and institute Third lower die is stated to be oppositely arranged；When on the top that the bottom of the third upper mold is resisted against the third lower die, workpiece and hair Embryo is at least partially separate, and multiple interconnecting pieces are formed between workpiece and blank；

The blanking die, including the 4th upper mold and the 4th lower die, one end and the third upper mold of the 4th upper mold Other end connection, one end of the 4th lower die connect with the other end of the third lower die, the 4th upper mold with it is described 4th lower die is oppositely arranged；When the 4th upper mold is resisted against in the 4th lower die, the workpiece and multiple connections Part from.

The progressive die described in the utility model compared with the background art caused by advantageous effect：

The above-mentioned progressive die by making first upper mold, second upper mold, the third upper mold and described successively Four upper molds connect, and first lower die, second lower die, the third lower die is made to be connected with the 4th lower die successively, So that can once complete punching press in the progressive die without flange tensioning member, existed with being effectively prevented from no flange tensioning member Flow harden is generated when first time punching press, no flange tensioning member is caused to easy to produce showing of weighing wounded and scratch in two times punch As improving the exterior quality of product, and then improve the qualification rate of product, therefore improve the production efficiency of product.In addition, By the way that the precut mold is arranged so that workpiece is partially separated with blank, and workpiece is connected to form multiple interconnecting pieces And blank, finally by the blanking die make workpiece and multiple coupling parts from, due in advance to workpiece and blank into Row punch process so that workpiece can make workpiece with the coupling part to effectively keep away in blanking by internal stress Exempt from when workpiece is detached with blank, the surface of workpiece leads to the problem of burr, and then further improves the appearance product of product Matter.

The progressive die further includes shaping mould in one of the embodiments, and the shaping mould includes the 5th upper mold With the 5th lower die, the 5th upper mold is oppositely arranged with the 5th lower die；One end of the third upper mold passes through the described 5th Upper mold is connect with the other end of second upper mold, and one end of the third lower die passes through under the 5th lower die and described second The other end of mould connects.By making the 5th upper mold be separately connected the third upper mold and second upper mold, and make described 5th lower die is separately connected the third lower die and second lower die, and the shaping mould is connected to the reverse redrawing dies Between tool and the precut mold, to realize the shape and size etc. by the shaping mould to preliminary molding workpiece It is modified, to ensure the accuracy of the workpiece of final molding, and then improves the quality of product.

First upper mold includes the first upper die holder in one of the embodiments, is set below first upper die holder There is the first cavity plate；First lower die includes the first lower die holder, and the top of first lower die holder is equipped with the first punch-pin, described First cavity plate is oppositely arranged with first punch-pin.By the way that first cavity plate is arranged on first upper die holder, described First punch-pin is set on the first lower die holder, and first cavity plate and first punch-pin is made to be oppositely arranged so that in institute Under the cooperation for stating the first cavity plate and first punch-pin, blank is acted on by the drawing pressure of first punch-pin 1, so that Blank is plastically deformed, and is constantly pressed into first cavity plate, and then forms the hollow object, while the hollow object The flange is formed between blank, is finally completed the molding of the hollow object.

In one of the embodiments, second upper mold include the second upper die holder, one end of second upper die holder with The first upper die holder connection, the lower section of second upper die holder are equipped with the second punch-pin；Second lower die includes the second lower die Seat, one end of second lower die holder are connect with first lower die holder, and the top of second lower die holder is recessed equipped with second Mould, second cavity plate are oppositely arranged with second punch-pin.By the way that second punch-pin is arranged on second upper die holder 2, second cavity plate is set on second lower die holder, and second cavity plate and second punch-pin is made to be oppositely arranged, So that under the cooperation of second cavity plate and second punch-pin, the top of the hollow object is drawn by second punch-pin The effect of deep power, so that the top of the hollow object is plastically deformed, and is constantly pressed into second cavity plate, in turn The cavity is formed on the top of the hollow object, finally realizes the first one-step forming of no flange tensioning member.

In one of the embodiments, the 5th upper mold include the 5th upper die holder, one end of the 5th upper die holder with The other end of second upper die holder connects, and the lower section of the 5th upper die holder is equipped with the 5th punch-pin；5th lower die includes One end of 5th lower die holder, the 5th lower die holder is connect with the other end of second lower die holder, the 5th lower die holder Top is equipped with the 5th cavity plate, and the 5th cavity plate is oppositely arranged with the 5th punch-pin.By on the 5th upper die holder 5th punch-pin is set, the 5th cavity plate is set on the 5th lower die holder, and makes the 5th cavity plate and described Five punch-pin are oppositely arranged so that under the cooperation of the 5th cavity plate and second punch-pin, are realized to the hollow object and institute The finishing processing for stating the shape and size of cavity, to realize the adjustment to preliminary molding no flange tensioning member, to ensure just One-step forming meets required precision without flange tensioning member, and then improves the quality of finished product.

The third upper mold includes third upper die holder in one of the embodiments, one end of the third upper die holder with The other end of 5th upper die holder connects, and the lower section of the third upper die holder is equipped with third cavity plate；The third lower die includes Third lower die holder, one end of the third lower die holder are connect with the other end of the 5th lower die holder, the third lower die holder Top is equipped with third punch-pin, and the third cavity plate is oppositely arranged with the third punch-pin.By on the third upper die holder The third cavity plate is set, the third punch-pin is set on the third lower die holder, and makes the third cavity plate and described Three punch-pin are oppositely arranged so that under the cooperation of the third cavity plate and the third punch-pin, realize the punching press to the flange Processing, so that the hollow object is at least partially separate with the flange, to be formed between the hollow object and the flange Multiple interconnecting pieces, so that blank is connect by the interconnecting piece with workpiece, and then convenient for being fallen by the interconnecting piece Material.Further, since carrying out punch process to the flange in advance so that workpiece is only connect by the interconnecting piece with blank, is subtracted The connection area of blank and workpiece is lacked, enabling the interconnecting piece is broken by internal stress, to complete blanking, and then really Guarantor can be effectively prevented from workpiece and blank separation, and the surface of workpiece leads to the problem of burr.

In one of the embodiments, the 4th upper mold include the 4th upper die holder, one end of the 4th upper die holder with The other end of the third upper die holder connects, and the lower section of the 4th upper die holder is equipped with the 4th cavity plate, is set on the 4th cavity plate There is first passage；4th lower die includes the 4th lower die holder, one end and the third lower die holder of the 4th lower die holder The other end connects, and the top of the 4th lower die holder is equipped with demoulding mechanism, and the bottom of the demoulding mechanism is equipped with mandril, institute The 4th cavity plate is stated to be oppositely arranged with the demoulding mechanism；When the 4th cavity plate is resisted against on the demoulding mechanism, the top Bar moves upwards, and the workpiece is with the coupling part from the workpiece is located in the first passage.By the described 4th The first passage is set on cavity plate, and the mandril is set on the demoulding mechanism so that in the 4th cavity plate and institute State demoulding mechanism cooperation when, the mandril moves upwards, when the mandril is resisted against the bottom of workpiece, the mandril continue to Upper movement, to break multiple interconnecting pieces, so that the hollow object and the coupling part are from and then realizing workpiece and hair Being kept completely separate for embryo, is finally completed blanking；Meanwhile when workpiece and blank are kept completely separate, mandril continues up, until will Workpiece is ejected from demoulding mechanism, and workpiece is made to enter in the first passage, to complete to demould.

In one of the embodiments, the progressive die further include for make finished product flow out second channel, described second Channel is connected to the first passage.By the way that the second channel is arranged, and the second channel is made to connect with the first passage It is logical, so that the workpiece into the first passage can enter the second channel, and flowed out from the second channel, to It is collected and arranges convenient for the workpiece to final molding.

The progressive die further includes the third channel for collecting waste material in one of the embodiments, and the third is logical The one end in road is connect with the other end of the 4th lower die holder.By the way that the third channel is arranged, and make the third channel One end is connect with the other end of the 4th lower die holder so that when workpiece completes blanking in the blanking die, waste material can It is flowed out from the third channel, consequently facilitating the waste material in the progressive die is collected and is arranged, in order to waste material It is recycled.

Description of the drawings

Fig. 1 is the structural schematic diagram under a state of the progressive die in the utility model embodiment；

Fig. 2 is the structural schematic diagram under another state of the progressive die in the utility model embodiment；

Fig. 3 is the structural schematic diagram of the drawing die in the utility model embodiment；

Fig. 4 is the assembling schematic diagram of the reverse-drawing mold and shaping mould in the utility model embodiment；

Fig. 5 is the assembling schematic diagram of the precut mold and blanking die in the utility model embodiment.

Wherein, 10, workpiece；20, blank；

1, drawing die；11, the first upper mold；111, the first upper die holder；112, the first cavity plate；12 first lower dies；121, One lower die holder；122, the first punch-pin；2, reverse-drawing mold；21, the second upper mold；211, the second upper die holder；212, the second punch-pin； 22, the second lower die；221, the second lower die holder；222, the second cavity plate；3, mold is precut；31, third upper mold；311, third upper mold Seat；312, third cavity plate；32, third lower die；321, third lower die holder；322, third punch-pin；4, blanking die；41, on the 4th Mould；411, the 4th upper die holder；412, the 4th cavity plate；4121, first passage；42, the 4th lower die；421, the 4th lower die holder；422、 Demoulding mechanism；4221, mandril；5, shaping mould；51, the 5th upper mold；511, the 5th upper die holder；512, the 5th tongue；52, the 5th Lower die；521, the 5th lower die holder；522, the 5th cavity plate；6, second channel；7, third channel.

Specific implementation mode

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

In conjunction with shown in Fig. 1 to Fig. 5, a kind of progressive die of the preferred embodiment in the utility model, including drawing die 1, reverse drawing Stretch mold 2, precut mold 3 and blanking die 4；

The drawing die 1, including the first upper mold 11 and the first lower die 12, first upper mold 11 and first lower die 12 are oppositely arranged；

The reverse-drawing mold 2, including the second upper mold 21 and the second lower die 22, one end of second upper mold 21 with it is described First upper mold 11 connects, and one end of second lower die 22 connect with first lower die 12, second upper mold 21 with it is described Second lower die 22 is oppositely arranged；

The precut mold 3, including third upper mold 31 and third lower die 32, one end of the third upper mold 31 with it is described The other end of second upper mold 21 connects, and one end of the third lower die 32 is connect with the other end of second lower die 22, described Third upper mold 31 is oppositely arranged with the third lower die 32；It is resisted against the third lower die 32 in the lower section of the third upper mold 31 Top on when, workpiece 10 is at least partially separate with blank 20, and multiple interconnecting pieces are formed between workpiece 10 and blank 20；

The blanking die 4, including the 4th upper mold 41 and the 4th lower die 42, one end of the 4th upper mold 41 and described the The other ends of three upper molds 31 connects, and one end of the 4th lower die 42 is connect with the other end of the third lower die 32, and described the Four upper molds 41 are oppositely arranged with the 4th lower die 42；When the 4th upper mold 41 is resisted against in the 4th lower die 42, institute State workpiece 10 and multiple coupling parts from.

In the utility model embodiment, the above-mentioned progressive die by making first upper mold 11, on described second successively Mould 21, the third upper mold 31 and the 4th upper mold 41 connection, and make first lower die 12, second lower die successively 22, the third lower die 32 and the 4th lower die 42 connection, to realize the drawing die 1, the reverse-drawing mold 2, institute The connection of precut mold 3 and the blanking die 4 is stated, so that can be in the progressive die once without flange tensioning member Punching press is completed, flow harden is generated in first time punching press to be effectively prevented from no flange tensioning member, leads to no flange tensioning member The phenomenon that weighing wounded and scratching is easy tod produce in two times punch, improves the exterior quality of product, and then improves the conjunction of product Lattice rate, therefore improve the production efficiency of product.In addition, by the way that the precut mold 3 is arranged so that workpiece 10 and blank 20 It is partially separated, workpiece 10 and blank 20 is connected to form multiple interconnecting pieces, finally by the blanking die 4 is arranged, Make workpiece 10 with multiple coupling parts from due to carrying out punch process to workpiece 10 and blank 20 in advance so that workpiece 10 In blanking, workpiece 10 and the coupling part can be made to efficiently avoid in workpiece 10 and hair by internal stress When embryo 20 detaches, the surface of workpiece 10 leads to the problem of burr, and then further improves the exterior quality of product.

In the utility model embodiment, in order to ensure passing through the precision of the molding workpiece of the progressive die 10, this implementation The progressive die further includes shaping mould 5 described in example, and the shaping mould 5 includes the 5th upper mold 51 and the 5th lower die 52, and described the Five upper molds 51 are oppositely arranged with the 5th lower die 52；One end of the third upper mold 31 by the 5th upper mold 51 with it is described The other end of second upper mold 21 connects, and one end of the third lower die 32 passes through the 5th lower die 52 and second lower die 22 The other end connection.By making the 5th upper mold 51 be separately connected the third upper mold 31 and second upper mold 21, and make 5th lower die 52 is separately connected the third lower die 32 and second lower die 22, and the shaping mould 5 is connected to Between the reverse-drawing mold 2 and the precut mold 3, to realize through the shaping mould 5 to preliminary molding work The shape and size etc. of part 10 are modified, and to ensure the precision of the workpiece 10 of final molding, and then improve the quality of finished product.

In the utility model embodiment, the molding without flange tensioning member is completed by the progressive die, is embodied in： In the progressive die, blank 20 passes through the drawing die 1, the reverse-drawing mold 2, the shaping mould 5, described successively Punch process is carried out in precut mold 3 and the blanking die 4；In the drawing die 1, pass through first upper mold 11 With the cooperation of first lower die 12, radial drawing is carried out to blank 20, blank is made to form the hollow object to raise up, the sky The surrounding of the bottom of the side wall of central member forms the flange extended along the direction of the central axis far from the hollow object；Described anti- In drawing die 2, by the cooperation of second upper mold 21 and second lower die 22, to the top of the hollow object into conduct To stretching so that the medial recess of the hollow object forms cavity, and the side wall of the hollow object is opposite with the side wall of the cavity Setting；In the shaping mould 5, by the cooperation of the 5th upper mold 51 and the 5th lower die 52, to the hollow object It is modified with the size and shape of the cavity, to ensure that workpiece 10 meets production requirement；In the precut mold 3, By the cooperation of the third upper mold 31 and the third lower die 32, punching press is carried out to the flange so that the hollow object with The flange is at least partially separate, and multiple interconnecting pieces are formed between the hollow object and the flange, at this time blank 20 connect workpiece 10 by the interconnecting piece；In the blanking die 4, pass through the 4th upper mold 41 and the 4th lower die 42 cooperation breaks multiple interconnecting pieces, while stretching the bottom of the side wall of the hollow object, and makes workpiece 10 from mold It detaches, to complete the molding without flange tensioning member.

In conjunction with shown in Fig. 2 and Fig. 3, in order to realize the hollow object for being formed and being raised up on blank 20, the present embodiment Described in the first upper mold 11 include the first upper die holder 111, the lower section of first upper die holder 111 is equipped with the first cavity plate 112；It is described First lower die 12 includes the first lower die holder 121, and the top of first lower die holder 121 is equipped with the first punch-pin 122, and described first Cavity plate 112 is oppositely arranged with first punch-pin 122.By the way that first cavity plate is arranged on first upper die holder 121 122, first punch-pin 122 is set on first lower die holder 121, and makes first cavity plate 112 and described first convex Mould 122 is oppositely arranged so that under the cooperation of first cavity plate 112 and first punch-pin 122, blank 20 is by described The effect of the drawing pressure of one punch-pin 122 so that the radial of blank 20 generates tensile stress, and is pressed in tangential upper generate of blank 20 Stress under compression, so that blank 10 is plastically deformed, and is constantly pressed into first cavity plate 112, and then described in formation Hollow object, while the flange is formed between the hollow object and blank 20, and it is finally completed the molding of the hollow object.

In conjunction with shown in Fig. 2 and Fig. 4, in order to make the medial recess of the hollow object, and the cavity is formed, to realize without convex The first one-step forming of edge tensioning member, the second upper mold 21 described in the present embodiment include the second upper die holder 211, second upper die holder 211 one end is connect with first upper die holder 111, and the lower section of second upper die holder 211 is equipped with the second punch-pin 212；It is described Second lower die 22 includes the second lower die holder 221, and one end of second lower die holder 221 is connect with first lower die holder 121, institute The top for stating the second lower die holder 221 is equipped with the second cavity plate 222, and second cavity plate 222 is opposite with second punch-pin 212 to be set It sets.By the way that second punch-pin 212 is arranged on second upper die holder 211, on second lower die holder 221 described in setting Second cavity plate 222, and second cavity plate 222 and second punch-pin 212 is made to be oppositely arranged so that in second cavity plate 222 and second punch-pin 212 cooperation under, the top of the hollow object is made by the drawing pressure of second punch-pin 212 With, so that the radial of the top of the hollow object generates tensile stress, and in tangential upper generation compression stress, to make the sky The top of central member is plastically deformed, and is constantly pressed into second cavity plate 222, and then on the top of the hollow object The cavity is formed, the first one-step forming of no flange tensioning member is finally realized.

In the use of the new type embodiment, in order to which the size and shape to the hollow object and the cavity are modified, To ensure that preliminary molding no flange tensioning member meets required precision, the 5th upper mold 51 described in the present embodiment includes the 5th upper mold Seat 511, one end of the 5th upper die holder 511 is connect with the other end of second upper die holder 211, the 5th upper die holder 511 lower section is equipped with the 5th punch-pin 512；5th lower die 52 includes the 5th lower die holder 521, the 5th lower die holder 521 One end is connect with the other end of second lower die holder 221, and the top of the 5th lower die holder 521 is equipped with the 5th cavity plate 522, 5th cavity plate 522 is oppositely arranged with the 5th punch-pin 512.By the way that described is arranged on the 5th upper die holder 511 The 5th cavity plate 522 is arranged on the 5th lower die holder 521 in five punch-pin 512, and makes the 5th cavity plate 522 and described 5th punch-pin 512 is oppositely arranged so that under the cooperation of the 5th cavity plate 522 and the 5th punch-pin 512, is realized to described The finishing of hollow object and the shape and size of the cavity is processed, to realize the tune to preliminary molding no flange tensioning member It is whole, to ensure that preliminary molding no flange tensioning member meets required precision, and then improve the quality of finished product.

In conjunction with shown in Fig. 2 and Fig. 5, while for the ease of blanking, it is ensured that when workpiece 10 can be avoided to be detached with blank 20, The surface of workpiece 10 generates burr, and third upper mold described in the present embodiment 31 includes third upper die holder 311, the third upper die holder 311 one end is connect with the other end of the 5th upper die holder 511, and the lower section of the third upper die holder 311 is equipped with third cavity plate 312；The third lower die 32 includes third lower die holder 321, one end of the third lower die holder 321 and the 5th lower die holder 521 other end connection, the top of the third lower die holder 321 are equipped with third punch-pin 322, the third cavity plate 312 and institute Third punch-pin 322 is stated to be oppositely arranged.By the way that the third cavity plate 312 is arranged on the third upper die holder 311, in the third The third punch-pin 322 is set on lower die holder 521, and the third cavity plate 312 and the third punch-pin 322 is made to be oppositely arranged, So that under the cooperation of the third cavity plate 312 and the third punch-pin 322, the punch process to the flange is realized, so that The hollow object is at least partially separate with the flange, and multiple institutes are formed between the hollow object and the flange to realize Interconnecting piece is stated, so that blank 20 can be connect by the interconnecting piece with workpiece 10, and then convenient for being carried out by the interconnecting piece Blanking.Further, since carrying out punch process to the flange in advance so that workpiece 10 is only connected by the interconnecting piece and blank 20 It connecing, reduces the connection area of blank 20 and workpiece 10 so that workpiece 10 can break the interconnecting piece by internal stress, to Blanking is completed, and then guarantees to be effectively prevented from when workpiece 10 is detached with blank 20, the surface of workpiece 10 generates burr Problem.

In the utility model embodiment, the quantity of the interconnecting piece can need to only expire according to actual use situation setting Foot ensures that the surface that workpiece 10 can be effectively prevented from when making workpiece 10 be detached with blank 20 by the interconnecting piece generates hair Thorn.In order to make design and simplify the structure, the quantity of interconnecting piece described in the present embodiment is 3.Specifically, described Under the cooperation of three cavity plates 312 and the third punch-pin 322 to the flange carry out punching press when, thrust the flange with it is described hollow The part of part connects, and retains the linkage section of 3 hollow objects and the flange.

In the utility model embodiment, in order to realize blanking and demoulding, the 4th upper mold 41 described in the present embodiment includes One end of 4th upper die holder 411, the 4th upper die holder 411 is connect with the other end of the third upper die holder 311, and the described 4th The lower section of upper die holder 411 is equipped with the 4th cavity plate 412, and the 4th cavity plate 412 is equipped with first passage 4121；4th lower die 42 include the 4th lower die holder 421, and one end of the 4th lower die holder 421 is connect with the other end of the third lower die holder 321, institute The bottom for stating the 4th lower die holder 421 is equipped with demoulding mechanism 422, and the lower section of the demoulding mechanism 422 is equipped with mandril 4221, institute The 4th cavity plate 412 is stated to be oppositely arranged with the demoulding mechanism 422；It is resisted against the demoulding mechanism 422 in the 4th cavity plate 412 When upper, the mandril 4221 moves upwards, and the workpiece 10 is with the coupling part from it is logical that the workpiece 10 enters described first In road 4121.By the way that the first passage 4121 is arranged on the 4th cavity plate 412, and set on the demoulding mechanism 422 Set the mandril 4221 so that when the 4th cavity plate 412 and the demoulding mechanism 422 coordinate, the mandril 4221 is upward Movement, when the mandril 4221 is resisted against the bottom of workpiece 10, the mandril 4221 continues up, multiple to break The interconnecting piece, so that the hollow object and the coupling part are from and then realizing being kept completely separate for workpiece 10 and blank 20, most Blanking is completed eventually；Meanwhile when workpiece 10 and blank 20 are kept completely separate, the mandril 4221 continues up, until by work Part 10 is ejected from demoulding mechanism 422, and workpiece 10 is made to enter in the first passage 4121, to complete to demould.

As shown in Fig. 2, be collected and arrange for the ease of the workpiece 10 to final molding, it is continuous described in the present embodiment Mould further includes the second channel 6 for making finished product flow out, and the second channel 6 is connected to the first passage 4121.By setting The second channel 6 is set, and the second channel 6 is made to be connected to the first passage 4121, so that into the first passage 4121 workpiece 10 can enter the second channel 6, and be flowed out from the second channel 6, consequently facilitating to final molding Workpiece 10 be collected and arrange.

In the utility model embodiment, for the ease of the waste material in the progressive die is collected and is arranged, so as to It is recycled in waste material, the progressive die described in the present embodiment further includes the third channel 7 for making waste material flow out, described One end of third channel 7 is connect with the other end of the 4th lower die holder 421.By the way that the third channel 7 is arranged, and make described One end of third channel 7 is connect with the other end of the 4th lower die holder 421 so that workpiece 10 is complete in the blanking die 4 After blanking, waste material can enter in the third channel 7, and be flowed out from the third channel 7, consequently facilitating to described continuous Waste material in mould is collected and arranges, in order to be recycled to waste material.

To sum up, the above-mentioned progressive die by making first upper mold 11, second upper mold 21, the third upper mold successively 31 and the 4th upper mold 41 connection, and make first lower die 12, second lower die 22,32 and of third lower die successively 4th lower die 42 connection, to realize the drawing die 1, the reverse-drawing mold 2, the precut mold 3 and described The connection of blanking die 4, so that punching press can be once completed in the progressive die without flange tensioning member, effectively to keep away Exempt from no flange tensioning member and generate flow harden in first time punching press, no flange tensioning member is caused to be easy tod produce in two times punch The phenomenon that weighing wounded and scratching, improves the exterior quality of product, and then improves the qualification rate of product, therefore improves product Production efficiency.In addition, by the way that the precut mold 3 is arranged so that workpiece 10 is partially separated with blank 20, to form multiple institutes Interconnecting piece is stated to connect workpiece 10 and blank 20, finally by the blanking die 4 is arranged, makes workpiece 10 and multiple connections Part to workpiece 10 and blank 20 from due to carrying out punching press so that when workpiece 10 is in blanking, can be made by internal stress in advance Workpiece 10 and the coupling part are to efficiently avoid when workpiece 10 is detached with blank 20, is produced from the surface of workpiece 10 The problem of setation pierces, and then further improve the exterior quality of product.The above is only the preferred implementation of the utility model Mode, it is noted that for those skilled in the art, before not departing from the utility model technical principle It puts, several improvement and replacement can also be made, these, which improve and replace, also should be regarded as the scope of protection of the utility model.

Claims (9)

1. a kind of progressive die, which is characterized in that including drawing die (1), reverse-drawing mold (2), precut mold (3) and blanking Mold (4)；

The drawing die (1), including the first upper mold (11) and the first lower die (12), first upper mold (11) and described first Lower die (12) is oppositely arranged；

The reverse-drawing mold (2), including the second upper mold (21) and the second lower die (22), one end of second upper mold (21) with First upper mold (11) connection, one end of second lower die (22) is connect with first lower die (12), on described second Mould (21) is oppositely arranged with second lower die (22)；

The precut mold (3), including third upper mold (31) and third lower die (32), one end of the third upper mold (31) with The other end of second upper mold (21) connects, the other end of one end of the third lower die (32) and second lower die (22) Connection, the third upper mold (31) are oppositely arranged with the third lower die (32)；The bottom of the third upper mold (31) against When on the top of the third lower die (32), workpiece (10) is at least partially separate with blank (20), and in workpiece (10) and hair Embryo forms multiple interconnecting pieces between (20)；

The blanking die (4), including the 4th upper mold (41) and the 4th lower die (42), one end of the 4th upper mold (41) and institute The other end connection of third upper mold (31) is stated, one end of the 4th lower die (42) and the other end of the third lower die (32) connect It connects, the 4th upper mold (41) is oppositely arranged with the 4th lower die (42)；It is resisted against described in the 4th upper mold (41) When in four lower dies (42), the workpiece (10) and multiple coupling parts from.

2. the progressive die as described in claim 1, which is characterized in that the progressive die further includes shaping mould (5), the shaping Mold (5) includes the 5th upper mold (51) and the 5th lower die (52), and the 5th upper mold (51) is opposite with the 5th lower die (52) Setting；One end of the third upper mold (31) is connected by the other end of the 5th upper mold (51) and second upper mold (21) It connects, one end of the third lower die (32) is connect by the 5th lower die (52) with the other end of second lower die (22).

3. the progressive die as claimed in claim 2, which is characterized in that first upper mold (11) includes the first upper die holder (111), The lower section of first upper die holder (111) is equipped with the first cavity plate (112)；First lower die (12) includes the first lower die holder (121), the top of first lower die holder (121) is equipped with the first punch-pin (122), first cavity plate (112) and described first Punch-pin (122) is oppositely arranged.

4. the progressive die as claimed in claim 3, which is characterized in that second upper mold (21) includes the second upper die holder (211), One end of second upper die holder (211) is connect with first upper die holder (111), the lower section of second upper die holder (211) Equipped with the second punch-pin (212)；Second lower die (22) include the second lower die holder (221), the one of second lower die holder (221) End is connect with first lower die holder (121), and the top of second lower die holder (221) is equipped with the second cavity plate (222), and described the Two cavity plates (222) are oppositely arranged with second punch-pin (212).

5. the progressive die as claimed in claim 4, which is characterized in that the 5th upper mold (51) includes the 5th upper die holder (511), One end of 5th upper die holder (511) is connect with the other end of second upper die holder (211), the 5th upper die holder (511) lower section is equipped with the 5th punch-pin (512)；5th lower die (52) includes the 5th lower die holder (521), the 5th lower die One end of seat (521) is connect with the other end of second lower die holder (221), and the top of the 5th lower die holder (521) is equipped with 5th cavity plate (522), the 5th cavity plate (522) are oppositely arranged with the 5th punch-pin (512).

6. the progressive die as claimed in claim 5, which is characterized in that the third upper mold (31) includes third upper die holder (311), One end of the third upper die holder (311) is connect with the other end of the 5th upper die holder (511), the third upper die holder (311) lower section is equipped with third cavity plate (312)；The third lower die (32) includes third lower die holder (321), the third lower die One end of seat (321) is connect with the other end of the 5th lower die holder (521), and the top of the third lower die holder (321) is equipped with Third punch-pin (322), the third cavity plate (312) are oppositely arranged with the third punch-pin (322).

7. the progressive die as claimed in claim 6, which is characterized in that the 4th upper mold (41) includes the 4th upper die holder (411), One end of 4th upper die holder (411) is connect with the other end of the third upper die holder (311), the 4th upper die holder (411) lower section is equipped with the 4th cavity plate (412), and the 4th cavity plate (412) is equipped with first passage (4121)；Under described 4th Mould (42) includes the 4th lower die holder (421), and one end of the 4th lower die holder (421) is another with the third lower die holder (321) One end connects, and the top of the 4th lower die holder (421) is equipped with demoulding mechanism (422), and the bottom of the demoulding mechanism (422) is set There are mandril (4221), the 4th cavity plate (412) to be oppositely arranged with the demoulding mechanism (422)；In the 4th cavity plate (412) When being resisted against on the demoulding mechanism (422), the mandril (4221) moves upwards, the workpiece (10) and the coupling part From, and the workpiece (10) is located in the first passage (4121).

8. the progressive die as claimed in claim 7, which is characterized in that the progressive die further includes second for making finished product outflow Channel (6), the second channel (6) are connected to the first passage (4121).

9. the progressive die as claimed in claim 7, which is characterized in that the progressive die further includes logical for collecting the third of waste material The one end in road (7), the third channel (7) is connect with the other end of the 4th lower die holder (421).