CN207709667U - A kind of louvered breathable sealing cover one-time-shaped mould - Google Patents

Abstract

The utility model discloses a kind of louvered breathable sealing cover one-time-shaped moulds, belong to technical field of mold.The lower end of the upper mold of the mold is to cut stamping surface, stamping surface is cut longitudinally to be sequentially connected and constituted by sharp cutter, the first corner surface, the second arc surface and third arc surface, the wedge angle a of wherein sharp cutter is 40 50 °, and the second arc surface links up smoothly with the first corner surface, third arc surface respectively；Lower mold is equipped with cuts the matched groove surface in punching press end with upper mold, groove surface is longitudinally sequentially connected and is constituted by V-shaped groove, the first turning mating surface, the second mating surface and third mating surface, wherein the size of V-shaped groove is slightly larger than the size of sharp cutter, and the second mating surface links up smoothly with the first turning mating surface, third mating surface respectively.The utility model once cuts the processing that above-mentioned breathable sealing cover can be completed in punching press, efficient, and the notch flat appearance of breathable sealing cover, the size of grid meets Sizing requirements, meets and uses high request in certain equipment.

Description

A kind of louvered breathable sealing cover one-time-shaped mould

Technical field

The utility model belongs to technical field of mold, more specifically to a kind of louvered breathable sealing cover one-pass molding Mold.

Background technology

Louvered breathable sealing cover is widely used at present, can be used for ventilated, dustproof and rainproof, radiating and cooling etc..Such as Fig. 1 Shown, louvered breathable sealing cover includes closure body and grid (or air hole), and wherein grid is arc, in the ventilative envelope of louvered In lid production process, bending, draw forming are important production link, in the two links, but usually because of bending, drawing Stretching deformation makes material generate local internal stress, to make material generate warpage, turn over and collapse, eventually leads to finished product deformation, wastes material, It bursts apart with die point it is found furthermore that grid turns over to collapse, and fenestra is in arcuation, quality is undesirable.Therefore, the conjunction of mold design Reason or not will be the key that influence product quality.

To solve the above-mentioned problems, through retrieval, patent document 1：Chinese patent CN201010556587.6 discloses one kind Shutter used for electric motor mold, the forming terrace die being fixedly mounted on die shank offer unloading bolt jack, discharging spiral shell on die shank Sliding plug has unloading bolt in nail jack, and stripper is equipped in the lower section of die shank, and the side wall of stripper and forming terrace die mutually leans on, The bottom end of unloading bolt is fixedly connected on stripper, and the top end part of unloading bolt is limited in unloading bolt jack, in mould The lower surface of handle is fixedly connected with discharging rubber；It is installed with shearing cavity plate and female die for forming on lower die holder, shears cavity plate Coordinate in shearing with forming terrace die, female die for forming coordinates with forming terrace die in punching press, is set up on female die for forming in shearing cavity plate There is positioning angle bar.The mold is sheared by the circular arc dovetail angle of punch-pin, the louvered breathable sealing cover produced, the side of grid Edge is coarse, and there are burrs can directly use some places of less demanding, but be used in some high-end equipment, Such as motor-car, appearance needs further polishing, keeps its more aesthetically pleasing, time-consuming and laborious.

For another example patent document 2：Chinese patent CN201510903811.7 discloses a kind of shutter louvered die, including upper Mould and lower die, upper mold include the punch being connect with external pressure machine, upper pallet, punch-pin and fixed plate, and upper pallet is fixed on punch On, punch-pin is mounted on the bottom of upper pallet, and cutter is arranged in the bottom of punch-pin, and fixed plate is mounted on the outer ring of punch-pin, and fixed plate Mounting height be higher than punch-pin；Lower die includes pedestal and the cavity plate that is mounted on the base, the interior shape of cavity plate and shutter Opening shape matches.The mold is provided with cutter in the bottom of punch-pin, and the shape of cutter is identical as patent document 1 as structure, Exist simultaneously the problem identical as mold in patent document 1.

In addition, some domestic periodicals also disclose that relevant technology, such as periodical literature 1：(die for shutter is set fanwanxin etc. The improvement middle and small motors .2001.28 (1) of meter) disclosed in punch die, including cope plate, punch-pin, positioning plate, striker plate, cavity plate Second, lower die holder, cavity plate first and fixed block should avoid material as far as possible by analyzing plate stress deformation in the second slot of punching Expect flexural deformation region；Former punching direction is accordingly changed, using bending and shaping die preceding, punching sword block is rear, before punch-pin Add a limit binder dressing stick, in the first slot of punching, as punch-pin declines, elastic material plate flattens plate, then, is punched sword Plate is cut, bends sheet metal bending forming therewith；Periodical literature 2：Guo Zhongqing (the designs of porous stainless steel shutter diel With manufacture intermetallic composite coatings .2014 2 months) disclosed in diel, including punch-pin, pressing plate and cavity plate；Periodical literature 3：Huang little Xia Deng punching die disclosed in (shutter punching die Curve guide impeller electromechanical engineerings technology the 08th phase of volume 40 in 2011), mould Die pad in tool changes rubber into, is filled into the groove of cavity plate, and after being improved by this method, cavity plate just has pooling feature, keeps away Exempt to occur the very stiff and demanding phenomenon in punching product process before die improvement, while also acting as and prevent from deviateing or snap gauge effect.It is above-mentioned Periodical literature disclosed in mold, not to shearing step carry out special setting (or i.e. cutter using punch-pin straight wedge angle, Using the circular arc dovetail angle of punch-pin), the louvered breathable sealing cover for causing production to obtain, the edge roughness of grid exists Burr does not meet the requirement used, in addition, punch-pin easily occurs moving relative to skidding during pushing, between punch-pin and slab, So that design code is not achieved in grid arc angle, while its stress all focuses on the junction of grid and ontology, using When in the equipment of some heat exchange, grid will produce deformation or cracking phenomena under the action of thermal stress, influence to use.

Invention content

1. to solve the problems, such as

Include closure body and grid for existing louvered breathable sealing cover, wherein grid is arc, the notch of grid Face is required to be smooth smooth, and burr, however the product that current louvered breathable sealing cover production mould is produced, blinds is not present The notch out-of-flatness of formula breathable sealing cover, burr is more, and easily occurs moving relative to skidding between punch-pin and slab, causes grid Size it is not up to standard, the purpose of this utility model is to provide a kind of louvered breathable sealing cover one-time-shaped mould, once cuts punching press The processing of above-mentioned breathable sealing cover can be completed, efficient, high precision machining is not damaged to breathable sealing cover, the notch of breathable sealing cover The size of flat appearance, grid meets Sizing requirements, meets and uses high request in certain equipment.

2. technical solution

To solve the above-mentioned problems, technical solution used by the utility model is as follows：

The louvered breathable sealing cover one-time-shaped mould of the utility model, including upper die component and lower mold assemblies, it is described on Membrane module includes upper mold, and lower mold assemblies include lower mold, and the lower end of the upper mold is to cut stamping surface, cut stamping surface it is longitudinal by Sharp cutter, the first corner surface, the second arc surface and third arc surface are sequentially connected composition, wherein the wedge angle a of sharp cutter is 40- 50 °, the second arc surface links up smoothly with the first corner surface, third arc surface respectively；

The lower mold is equipped with cuts the matched groove surface in punching press end with upper mold, and groove surface is longitudinally turned by V-shaped groove, first Angle mating surface, the second mating surface and third mating surface are sequentially connected composition, and the wherein size of V-shaped groove is slightly larger than the ruler of sharp cutter Very little, the second mating surface links up smoothly with the first turning mating surface, third mating surface respectively.

In a kind of possible embodiment of the utility model, the length R1=(sina*L)/40 of first corner surface, Wherein L is the length of grid, the radius R3=(cosa*L)/50 of third arc surface, the radius R2=25*R1+ of the second arc surface 20*R3。

In a kind of possible embodiment of the utility model, first corner surface is W-shaped by several sections of circular arc flexure planes At several sections of circular arc flexure plane W are downwardly projected with oblique court, and the radius of several sections of circular arc flexure plane W is identical.

In a kind of possible embodiment of the utility model, the point cutter is located in the lateral lower end of upper mold Portion, the length L0=L-20*R1 of sharp cutter；The width of the wedge angle of sharp cutter is 3-5mm, and the height of wedge angle is 3-5mm.

In a kind of possible embodiment of the utility model, the length r1=(sina* of first turning mating surface L)/40, wherein L is the length of grid, and third mating surface is arc surface, arc radius r3=(cosa*L)/50, the second cooperation Face is arc surface, arc radius r2=(25*r1+20*r3) -1.

In a kind of possible embodiment of the utility model, first turning mating surface is by several sections of circular arc flexure planes N is formed, and several sections of circular arc flexure plane N are with tiltedly towards lower recess, the radius of several sections of circular arc flexure plane N is identical.

In a kind of possible embodiment of the utility model, the length and grid L of the V-shaped groove are isometric.

In a kind of possible embodiment of the utility model, the upper die component further includes upper die holder, is set on upper mold Mounting groove is equipped with for installing upper die holder, and is bolted, in use, upper die holder is bolted on bender.

In a kind of possible embodiment of the utility model, the upper die holder is mounted on the middle and upper part of upper mold.

3. advantageous effect

Compared with the prior art, the beneficial effects of the utility model are：

(1) the louvered breathable sealing cover one-time-shaped mould of the utility model, upper mold, which has, cuts stamping surface and lower die Tool has groove surface, cuts stamping surface longitudinal direction and is sequentially connected structure by sharp cutter, the first corner surface, the second arc surface and third arc surface At sharp notch can cut out the notch of flat smooth, and impulse- free robustness in steel slab surface, not need secondary manual polishing processing, behaviour Facilitate, it is at low cost；In addition, the first corner surface, the second arc surface and third arc surface are used cooperatively, the first turning therein Face forms a pressure vertically downward with slab, changes existing pressure obliquely, cuts between stamping surface and slab and be not easy It relatively moves, grid is more easily molded when pushing, and can reach defined curved angle, energy time processing is to be processed Louvered breathable sealing cover workpiece, it is efficient；

(2) the louvered breathable sealing cover one-time-shaped mould of the utility model, the radius R2=25*R1+ of the second arc surface 20*R3, design in this way ensure that between the second arc surface and third arc surface as effectively arc transition, can make Third arc surface accordingly the cambered surface on grid and the stress between ontology are minimum, avoid opening during thermal cycle use It splits or deforms, extend the service life of capping；

(3) the louvered breathable sealing cover one-time-shaped mould of the utility model, the first corner surface is by several sections of arc surfaces It constitutes, circular arc flexure plane forms many places line with slab and contacts, and ensure that the reliability of contact.It can be uniform by downward pressure It is dispersed in the edge of grid, slipping phenomenon is less prone between one side upper mold and slab, on the other hand ensure that in capping The flatness in outside；

(4) the louvered breathable sealing cover one-time-shaped mould of the utility model, upper die component further includes upper die holder, is convenient for The molding die is fixed on bender, convenient to use.

Description of the drawings

The technical solution of the utility model is described in further detail below with reference to drawings and examples, still It should be known that these attached drawings only design for task of explanation, therefore not as the restriction of the scope of the utility model.In addition, Unless otherwise indicated, these attached drawings are meant only to conceptually illustrate structure construction described herein, without to carry out to scale It draws.

Fig. 1 is the structural schematic diagram of louvered breathable sealing cover；

Fig. 2 is the structural schematic diagram of the utility model louvered breathable sealing cover one-time-shaped mould；

Fig. 3 is the portions the A enlarged drawing of Fig. 2；

Fig. 4 is the side view of the utility model louvered breathable sealing cover one-time-shaped mould；

Fig. 5 is the attachment structure schematic diagram of the utility model upper die holder and upper mold.

Description of symbols in figure：

1, upper die component；110, upper mold；120, sharp cutter；130, the first corner surface；131, circular arc flexure plane W；140、 Second arc surface；150, third arc surface；160, upper die holder；

2, lower mold assemblies；210, lower mold；220, V-shaped groove；230, the first turning mating surface；231, circular arc flexure plane N； 240, the second mating surface；250, third mating surface.

Specific implementation mode

Hereafter to the detailed description of the exemplary embodiment of the utility model with reference to attached drawing, which forms the one of description Part has been shown as example the enforceable exemplary embodiment of the utility model in the figure.Although these exemplary realities Example is applied to be described in sufficient detail so that those skilled in the art can implement the utility model, it is to be understood that it can be realized His embodiment and can various changes can be made to the utility model in the case where not departing from the spirit and scope of the utility model.Hereafter Required the scope of the utility model is not limited to the more detailed description of the embodiments of the present invention, and only The description of the characteristics of in order to be illustrated and not limit to the utility model and feature, to propose to execute the utility model Best mode, and it is sufficient to make those skilled in the art that can implement the utility model.Therefore, the scope of the utility model only by Appended claims limit.

Hereafter the detailed description of the utility model and example embodiment are more fully understood in combination with attached drawing, wherein this reality It is identified by reference numeral with novel element and feature.

Embodiment 1

Fig. 2 to Fig. 5 is please referred to, the present embodiment is carried out with reference to the stainless steel louvered breathable sealing cover that thickness is 1.0mm Illustrate, the length L=62.15mm of grid, louvered breathable sealing cover one-time-shaped mould, including upper die component 1 and lower mold assemblies 2, the upper die component 1 includes upper mold 110, and lower mold assemblies 2 include lower mold 210, and the lower end of upper mold 110 is to cut punching press Face is cut stamping surface and is longitudinally sequentially connected by sharp cutter 120, the first corner surface 130, the second arc surface 140 and third arc surface 150 It constitutes, wherein the wedge angle a of sharp cutter 120 is 45 °, the width of wedge angle is 3mm, and the height of wedge angle is 3mm, the second arc surface 140 It is linked up smoothly respectively with the first corner surface 130, third arc surface 150；Lower mold 210 is equipped with cuts punching press end phase with upper mold 110 The groove surface of cooperation, groove surface are longitudinal by V-shaped groove 220, the first turning mating surface 230, the second mating surface 240 and third mating surface 250 are sequentially connected composition, and the wherein size of V-shaped groove 220 is slightly larger than the size of sharp cutter 120, and the second mating surface 240 is respectively with the One turning mating surface 230, third mating surface 250 link up smoothly.

Inventor has found louvered breathable sealing cover production mould production in the prior art by largely testing and analyzing Product out, the notch out-of-flatness of louvered breathable sealing cover, burr is more, and reason is that notch is leaned between punch-pin and slab The notch that pressure " tearing " comes out changes this phenomenon in the present embodiment using sharp cutter 120, but cutting in upper mold 110 Sharp cutter 120,120 quick abrasion of sharp cutter, and frangibility are set on stamping surface, in addition, 120 and second arc surface 140 of sharp cutter Between link up smoothly, still will appear relative to skid move, cause the size of grid not up to standard.

Therefore it is provided with the first corner surface 130 between sharp cutter 120 and the second arc surface 140, defines first here The numerical relation of corner surface 130, the second arc surface 140 and third arc surface 150, the length R1=of the first corner surface 130 (sin45*62.15)/40=1.1mm, wherein L are the length of grid, the radius R3=(cos45* of third arc surface 150 62.15)/50=0.88mm, the radius R2=25*R1+20*R3=45mm of the second arc surface 140, ensure that the second arc surface It is effectively arc transition between 140 and third arc surface 150, can makes arc of the third arc surface 150 accordingly on grid Stress between face and ontology is minimum, avoids cracking during thermal cycle use or deformation, extends the service life of capping.

In addition, being heat-treated to 120 part of sharp cutter, 2h is kept the temperature after being heated to 450 DEG C, is then heated to 650 DEG C 2h is kept the temperature, is heated to 900 DEG C, is quenched after keeping the temperature 45min, oil quenching is carried out using No. 2 conventional quenching oils.

In conjunction with Fig. 2, first corner surface 130 of the present embodiment is formed by several sections of circular arc flexure plane W131, several sections of circular arcs Flexure plane W131 is downwardly projected with oblique court, and the radius of several sections of circular arc flexure plane W131 is identical, in the connecting sewing of circular arc flexure plane It is filled with a small amount of magnetic powder particle in gap, circular arc flexure plane forms many places line with slab and contacts, and magnetic powder particle increases rubbing between the two Power is wiped, downward pressure can be uniformly dispersed in the edge of grid, be less prone between one side upper mold 110 and slab On the other hand slipping phenomenon ensure that the flatness in outside in capping.

In fig. 3 it can be seen that sharp cutter 120 is located at the middle part of the lateral lower end of upper mold 110, further point is cut The length L0=L-20*R1=62.15-20*1.1=40.15mm of knife 120.

Upper mold 110 and lower mold 210 be with the use of, therefore, the length r1=(sina* of the first turning mating surface 230 L)/40=1.1mm, wherein L be grid length, third mating surface 250 be arc surface, arc radius r3=(cosa*L)/ 50=0.88mm, the second mating surface 240 are arc surface, arc radius r2=(25*r1+20*r3) -1=44mm, the second cooperation The size in face 240 is less than the second arc surface 140, and main cause is that there are certain thickness for slab.If the first turning mating surface 230 by Dry section circular arc flexure plane N231 is formed, and several sections of circular arc flexure plane N231 are with tiltedly towards lower recess, several sections of circular arc flexure planes The radius of N231 is identical.

In use due to upper mold 110, it may appear that some deviations, in order to avoid breaking now occurs in sharp cutter 120 As the length and grid L of V-shaped groove 220 are isometric, even if sharp cutter 120 has fraction of offset, will not damage.

It is scheduled on bender in order to facilitate the rolling of upper mold 110, in conjunction with Fig. 5, upper die component 1 further includes upper die holder 160, upper mold It is provided with mounting groove on tool 110 and is mounted on the middle and upper part of upper mold 110 for installing upper die holder 160, upper die holder 160, and by spiral shell Bolt is fixed, in use, upper die holder 160 is bolted on bender.

Embodiment 2

The application method of the louvered breathable sealing cover one-time-shaped mould of the present embodiment is specific according to the following steps to carry out：

Step S101, the upper mold 110 of upper die component 1 and upper die holder 160 are assembled, and checks to ensure that each parts Connection is reliable；

Step S102, lower mold assemblies 2 are placed on the workbench of bender, and are fixed lower mold assemblies 2 by bolt；

Step S103, it lifts on upper die component 1 to lower mold assemblies 2, adjusts 1 position of upper die component, make cutting for upper mold 110 The groove surface of stamping surface and lower mold 210 is fitted close；

Step S104, after slider of bender downlink compresses upper die component 1, upper die component 1 is fixed to by bending by bolt On machine sliding block, sliding block drives upper die component 1 to move up and down 3 times, it is ensured that upper mold 110 and lower 210 cooperation position of mold are accurate；

Step S105, be 1.0mm by thickness, the slab of stainless steel is placed on the upper surface of lower mold 210, is adjusted After cutting stamping position well, the both ends of slab are compressed；

Step S106, the slow downlink under the driving force effect of bender of upper mold 110, upper mold 110 cut stamping surface The notch that the Cutting Length first on plank of sharp cutter 120 is L0, upper mold 110 continue traveling downwardly, and complete the second arc surface 140 Punching press keeps 15s, then slow downlink, completes the punching press of third arc surface 150, keeps 10s；

Step S107, bender drives 110 fast fallback of upper mold, removes slab.

Obtained louvered breathable sealing cover after processing is detected, the length of grid is 62.16mm, the notch of grid Flat appearance is smooth, and under continuous cycling situation, normal use for 24 hours, does not occur alligatoring.

Claims (9)

1. a kind of louvered breathable sealing cover one-time-shaped mould, including upper die component（1）And lower mold assemblies（2）, the upper module Part（1）Including upper mold（110）, lower mold assemblies（2）Including lower mold（210）, which is characterized in that the upper mold（110）'s Lower end is to cut stamping surface, and it is longitudinal by sharp cutter to cut stamping surface（120）, the first corner surface（130）, the second arc surface（140）With Three-arc face（150）It is sequentially connected composition, wherein sharp cutter（120）Wedge angle a be 40-50 °, the second arc surface（140）Respectively With the first corner surface（130）, third arc surface（150）It links up smoothly；

The lower mold（210）It is equipped with and upper mold（110）The matched groove surface in punching press end is cut, groove surface is longitudinal by V-shaped groove （220）, the first turning mating surface（230）, the second mating surface（240）With third mating surface（250）It is sequentially connected composition, wherein V Shape slot（220）Size be slightly larger than sharp cutter（120）Size, the second mating surface（240）Respectively with the first turning mating surface （230）, third mating surface（250）It links up smoothly.

2. louvered breathable sealing cover one-time-shaped mould according to claim 1, which is characterized in that first corner surface （130）Length R1=（sina*L）/ 40, wherein L are the length of grid, unit mm, third arc surface（150）Radius R3= （cosa*L）/ 50, the second arc surface（140）Radius R2=25*R1+20*R3.

3. louvered breathable sealing cover one-time-shaped mould according to claim 1 or 2, which is characterized in that described first turns Edged surface（130）By several sections of circular arc flexure plane W（131）It is formed, several sections of circular arc flexure plane W（131）It is downwardly projected with oblique court, if Dry section circular arc flexure plane W（131）Radius it is identical.

4. louvered breathable sealing cover one-time-shaped mould according to claim 1 or 2, which is characterized in that the point cutter （120）Positioned at upper mold（110）Lateral lower end middle part, sharp cutter（120）Length L0=L-20*R1；The wedge angle of sharp cutter Width be 3-5 mm, the height of wedge angle is 3-5 mm.

5. louvered breathable sealing cover one-time-shaped mould according to claim 2, which is characterized in that match at first turning Conjunction face（230）Length r1=（sina*L）/ 40, wherein L are the length of grid, third mating surface（250）For arc surface, circle Arc radius r3=（cosa *L）/ 50, the second mating surface（240）For arc surface, arc radius r2=（25*r1+20*r3）-1.

6. louvered breathable sealing cover one-time-shaped mould according to claim 3, which is characterized in that match at first turning Conjunction face（230）By several sections of circular arc flexure plane N（231）It is formed, several sections of circular arc flexure plane N（231）With tiltedly towards lower recess, if Dry section circular arc flexure plane N（231）Radius it is identical.

7. louvered breathable sealing cover one-time-shaped mould according to claim 4, which is characterized in that the V-shaped groove（220） Length and grid L it is isometric.

8. louvered breathable sealing cover one-time-shaped mould according to claim 4, which is characterized in that the upper die component （1）It further include upper die holder（160）, upper mold（110）On be provided with mounting groove for installing upper die holder（160）, and consolidated by bolt It is fixed, in use, upper die holder（160）It is bolted on bender.

9. louvered breathable sealing cover one-time-shaped mould according to claim 4, which is characterized in that the upper die holder （160）Mounted on upper mold（110）Middle and upper part.