CN102189193B

CN102189193B - Die unloading mechanism

Info

Publication number: CN102189193B
Application number: CN 201110052245
Authority: CN
Inventors: 周凯贤
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2011-03-04
Filing date: 2011-03-04
Publication date: 2013-09-11
Anticipated expiration: 2031-03-04
Also published as: CN102189193A

Abstract

The invention belongs to the field of die process equipment, and particularly relates to a die unloading mechanism. The die unloading mechanism comprises an unloading plate, wherein the unloading plate is clamped in a concave die and in reciprocating sliding fit with the concave die; the profile of the working surface of the unloading plate is consistent with that of the cut edge of a sheet material; the unloading structure also comprises a spring seat for supporting a spring; and the spring seat is arranged between the unloading plate and an unloading spring and attached to or fixedly connected with the unloading plate. According to the invention, the contact area between the unloading spring and the unloading plate is increased indirectly through the spring seat so as to ensure that theunloading force of the unloading spring can meet the normal working needs of the die and guarantee the reliability and stability of die unloading; and the unloading mechanism runs reliably and has a simple structure.

Description

A kind of shedding mechanism of mould

Technical field

The invention belongs to the mould process apparatus field, be specifically related to a kind of shedding mechanism of mould.

Background technology

Stamping die is the mould that quantity at most during body of a motor car was made, development cost is lower, also is cold punching technology equipment commonly used in China's electronic product manufacturing industry.Wherein, blanking and punching then is stamping die a kind of Sheet Metal Forming Technology commonly used, this type of mould generally all has shedding mechanism, be example with traditional upside-down mounting blanking and punching compound die, its shedding mechanism generally comprises stripper, discharging spring and stripper bolt, hang on the cope match-plate pattern with the affixed stripper in stripper bolt end and the nut portion by stripper bolt, the discharging spring then acts between die backing plate and the stripper, during the mould initial actuating, punch rises and the blank punching, stripper is by punch jack-up and push discharging spring between die backing plate and stripper simultaneously, after the mould blank is finished, the discharging spring promotes stripper, and the tablet that stripper falls and promotion is downcut makes it break away from mould, thereby finishes whole discharge process.Above-mentioned shedding mechanism action is exactly the discharge process of a typical upside-down mounting blanking and punching compound die, for ease of processing and manufacturing and the normal mold actions of implementing, required its outline of stripper of said structure is all consistent with institute blank sheet tangent plane, arrange required discharging spring and stripper bolt more at an upper portion thereof, its implementation result is not ccontaining doubtful, but when some occasion, but often there is very big defective: when being subjected to the restriction of sheet size or shape, as when institute's processing component is fillet shape, the working face of its stripper self also just narrows down thereupon, because the constant dimension of discharging spring and stripper bolt itself, this just certainly will be difficult to arrange discharging spring and stripper bolt at stripper, more discharging spring and the stripper bolt of small dimension are arranged successfully even use reluctantly, also can form the stripping force deficiency, and make the mould phenomenon that gets stuck, thereby can't guarantee the reliability and stability of mould discharging, and then influenced enterprises production efficiency greatly.

Summary of the invention

The shedding mechanism that the purpose of this invention is to provide a kind of mould can guarantee still can guarantee the reliability and stability of this mould discharging by the arrangement space of effective increase discharging spring when small size parts such as the tiny long narrow shape of punching press.

For achieving the above object, the present invention has adopted following technical scheme: a kind of discharging structure of mould, comprise stripper, described stripper be connected in the die and with die between constitute to reciprocatingly slide and cooperate, stripper working face profile is consistent with tablet side cut profile, discharging structure also comprises the spring base for support spring, described spring base be arranged between stripper and discharging spring and and stripper between fit or affixed.

Major advantage of the present invention is: on the basis that guarantees the traditional moulds impact style, by being set, spring base increases contact area between discharging spring and stripper indirectly, guarantee that the stripping force of discharging spring can satisfy the operate as normal needs of mould, thereby guarantee the reliability and stability of mould discharging, equipment operates reliably and is simple in structure.

Description of drawings

Fig. 1 is mounting structure schematic diagram of the present invention;

Fig. 2 is stripper and spring base structural representation;

Fig. 3 is the die structural representation.

The specific embodiment

A kind of discharging structure of mould, comprise stripper 10, described stripper 10 is connected in to reciprocatingly slide in the die 20 and with 20 formations of die and cooperates, stripper 10 working face profiles are consistent with tablet side cut profile, discharging structure also comprises the spring base 30 for support spring, described spring base 30 be arranged at

stripper

10 and 40 on discharging spring and and 10 of strippers fit or affixed, as shown in Figure 1.

In fact, can change to some extent according to institute's blank sheet side cut profile and thickness degree as the profile of stripper 10, the way of realization of spring base 30 also is multiple, can specifically be changed according to field condition.The structure chart of given mould and stripper 10 as can be seen among Fig. 1-2, the mould of Fig. 1 is the upside-down mounting piercing and blanking die that punch is positioned at the below, its tablet of cutting is shaped as long and narrow bar shaped stamping parts with holes, thereby can be according to actual conditions, spring base 30 profiles are designed to the batten shape that is complementary with it and is convenient to process, and certainly, above-mentioned spring base 30 profiles also are chosen as circle or other shape, as long as can guarantee and the cooperating of 30 on discharging spring, guarantee that the required stripping force of mould discharging gets final product.

As above-mentioned further preferred version, in order to ensure the reliable fit of 10 of spring base 30 and strippers, the connected mode that spring base 30 of the present invention and stripper are 10 is the integral type structure, shown in Fig. 1-2.

Further, because the effective contact area between spring base 30 and discharging spring can increase as required, for guaranteeing that spring base 30 has suitable scope of activities in mould, guarantee that spring base 30 can be reliably servo-actuated with stripper 10 when running, the installed surface of described die 20 is provided with the heavy stand 21 that holds spring base 30 and limit spring seat 30 whereabouts or climb, its bottom of heavy stand 21 to the installed surface spacing of die 20 greater than spring base 30 thicknesss of slab, as shown in Figure 3.Simultaneously, because the existence of above-mentioned heavy stand 21 has also just been cancelled the installation of the stripper bolt in the traditional moulds shedding mechanism, thereby has been simplified the structure of mould.

Further, for guaranteeing spring base 30 and stripper 10 reliable movement in the die die cavity, shown in Fig. 2-3, described heavy stand 21 profiles and spring base 30 profiles coincide.

Be example with the mould of upside-down mounting shown in Fig. 1, in the practical operation, go out the spring base 30 that is fit to it according to the dimensioned of discharging spring, 30 of stripper 10 and spring bases are connected with bolt or welding etc. method is affixed becomes one.Processing heavy stand 21 at die 20 installed surfaces (also can be with die 20 attenuation, increase a backing plate with heavy stand 21 equivalent effects again), heavy stand 21 side wall profile should can not produce interference in the time of can holding spring base 30 and spring base 30 motions and between heavy stand 21 sidewalls according to the shape processing of spring base 30.Process the installation nest of discharging spring at backing plate and drift installing plate with modes such as joining brill.After the mould assembling was finished, discharging spring preloading two ends are contact spring seat 30 and backing plate respectively, and under the effect of discharging pre-pressure of the spring, spring base 30 hangs on the heavy stand 21 of die 20.During mold work, die 20 descends and shears plate with punch, behind the arrival closure state, plate is cut off, and plate cuts off the tablet of back formation by punch jacking die 20, and punch promotion stripper 10 and spring base 30 rise simultaneously, spring base 30 breaks away from heavy stand 21, further compresses the discharging spring.Die 20 backhauls are subsequently risen, stripper 10 and spring base 30 are under the pressure effect of discharging spring, pressing tablet makes it be fitted on the punch all the time, die 20 continues to climb away punch, stripper 10 ejects plate, and owing to the existence of counterbore 21 shoulders, spring base 30 passive risings also drive stripper 10 and rise simultaneously, stripper 10 breaks away from plate and finishes whole discharge process, and final upper and lower mould reaches die opening state fully and finishes punching stroke one time.

Claims

1. the discharging structure of a mould, comprise stripper (10), described stripper (10) be connected in the die (20) and with die (20) between constitute to reciprocatingly slide and cooperate, described stripper (10) working face profile is consistent with tablet side cut profile, it is characterized in that: described discharging structure also comprises the spring base (30) for support spring, described spring base (30) be arranged between stripper (10) and the discharging spring (40) and and stripper (10) between fit or affixed, the installed surface of described die (20) is provided with and holds that spring base (30) and limit spring seat (30) fall or the heavy stand (21) of climb, its bottom of described heavy stand (21) to the installed surface spacing of die (20) greater than spring base (30) thickness of slab.

2. the discharging structure of mould according to claim 1 is characterized in that: described spring base (30) is constructed for integral type with stripper (10).

3. the discharging structure of mould according to claim 1 is characterized in that: described heavy stand (21) profile and spring base (30) profile coincide.