CN207028099U - A kind of automatic demoulding structure of mould - Google Patents

Abstract

The utility model discloses a kind of automatic demoulding structure of mould, including the first mould and the second mould, first mould and the second mould, which merge, forms injection die cavities, first mould is provided with the material hole led in injection die cavities, first mould includes the first outside plate, convex module and matching of the projection on the first outside plate are set in the stripper plate around convex module, the convex module forms the one side structure of moulding with stripper plate backwards to the one side structure of the first outside plate, it can make the isolating construction that both are automatically separated when the demoulding is provided between the stripper plate and the first outside plate, so as to which moulding be gone out from automatic demoulding on the first mould, the automatic demoulding of moulding can be realized by the structure, it is greatly improved the demoulding efficiency of moulding.

Description

A kind of automatic demoulding structure of mould

Technical field

Injection mold field is the utility model is related to, is specifically related to moulding mould and its demoulding side of internal thread Method.

Background technology

For the mould of injection molding tool internal thread moulding, because it has internal thread, there is shape in the die cavity of mould Into the core of screw thread, after existing this mold injection molding the demoulding of moulding waste time and energy, demoulding efficiency and its low can not Automatic stripping result is realized, these are also to influence one of production efficiency factor, and demoulding efficiency also is difficult to be lifted, for this problem This case utility model people makes improvements on injection mold this case generation then.

Utility model content

The purpose of this utility model be to provide one kind can automatic demoulding, carry a kind of efficient moulding for having internal thread Mould；Another object of the present utility model is the automatic demoulding method for providing this kind of mould.

To achieve the above object, the technical solution of the utility model is：Have the moulding mould of internal thread, including the first mould Tool, the second mould and axostylus axostyle, second mould offer the first through hole to match with axostylus axostyle, and the axostylus axostyle is rotatable and sliding Dynamic is located in first through hole, and one end of the axostylus axostyle is through the second mould and is provided with thread core, the thread core and First mould, the second mould merge the injection die cavities for forming moulding, and first mould or the second mould, which are provided with, leads to note The material hole of plastotype intracavitary.

The axostylus axostyle connects rotating drive mechanism, and screw thread when the demoulding can be achieved is rotated by rotating drive mechanism driving axostylus axostyle The automatic core-pulling of core.

The rotating drive mechanism include be erected on the second mould motor, be separately positioned on motor output Gear on axle and axostylus axostyle, and the chain of connection two gears of transmission.

The mould also includes the axostylus axostyle limiting structure for limiting axostylus axostyle action.

The axostylus axostyle limiting structure includes fixed plate, movable plate, spacer block and mobile link structure, and the fixed plate is corresponding Axostylus axostyle offers the second through hole passed through for the axostylus axostyle other end, and the spacer block is arranged between the second mould and fixed plate and three Person locks together, and the movable plate can withstand axle end by mobile link structure setting in the outside of fixed plate, described Mobile link structure includes the counterbore being opened on movable plate, the third through-hole, spring and the bolt that are opened in fixed plate, described Bolt is through counterbore and third through-hole and end locking is on spacer block, and the bolt head of the bolt not may pass through counterbore, institute State spring and be set on bolt and be embedded in third through-hole and both ends are withstood on spacer block and movable plate respectively, the movable plate can Opposing fixed plate fitting and separate mobile, the gear mesh of the rotating drive mechanism are realized by pressure and spring tension respectively It should be arranged in the clearance space between the second mould and fixed plate.

Also locking is provided with support column around axostylus axostyle between second mould and fixed plate.

Pilot hole is provided between the movable plate and fixed plate, spacer block, the second mould, the first mould and guide rod is formed The first positioning guiding structure, the fixing end of the guide rod is arranged on movable plate.

First mould be respectively equipped with the second mould can be mutually chimeric the first positioning block structure.

First mould is set in convex module week including the convex module and matching of the first outside plate, projection on the first outside plate The stripper plate enclosed, the convex module form the one side structure of moulding with stripper plate backwards to the one side structure of the first outside plate, Can make the isolating construction that both are automatically separated when the demoulding is provided between the stripper plate and the first outside plate, so as to by moulding from the Automatic demoulding goes out on one mould.

The isolating construction, which includes corresponding to, is opened in the first outside plate, stripper plate, the second mould, spacer block, fixed plate and shifting Sliding eye on dynamic plate and through the pull bar in all sliding eyes, the diameter of the stripper plate and the sliding eye on the second mould Less than the diameter of other sliding eyes；The both ends of the pull bar are respectively equipped with pulling ring, the pulling ring diameter be more than stripper plate and The diameter of sliding eye on second mould, less than the diameter of other sliding eyes, so as to pull stripper plate to be separated with the first outside plate.

The second positioning and guiding that pilot hole and guide rod are formed is provided between first outside plate, stripper plate and the second mould Structure, the fixing end of the guide rod of second positioning guiding structure are arranged on the first outside plate, and its other end is provided with and can prevented The structure of stripper plate abjection.

Tension structure is additionally provided between first mould and the second mould.

The tension structure include be opened on the second mould plug hole, be opened on stripper plate it is corresponding with plug hole Plug through hole, nylon plug and lead screw, the nylon plug are located in plug hole and plug through hole, and it is located in the second mould One end on tool is provided with screw hole, and its other end locks on the first outside plate through plug through hole, the lead screw for head A diameter of diminishing structure of one end rearwardly one end, the lead screw screw togather into screw hole, nylon plug can rise Major diameter is fitted tightly in the side wall of plug hole.

The second positioning block structure that can be mutually fitted together to is respectively equipped with the stripper plate and the first outside plate.

Locking part is additionally provided with side wall between first mould and the second mould, the both ends of the locking part lead to respectively Screw locking is crossed on the first outside plate and the second mould.

The release method of above-mentioned mould, automatic demoulding step of the injection molding after cooling is as follows, and 1）, release to movable plate Pressure, movable plate is separated with fixed plate, form the space exited for axostylus axostyle；

2）, start rotating drive mechanism, drive the rotation of axostylus axostyle thread core is exited moulding and realize that automatic core-pulling moves Make；

3）, the first mould and the second mould opposite direction separated, now moulding is bonded on the first mould；

4）, continue to separate the first mould and the second mould, until isolating construction pulls demoulding block by itself and the first outside plate point Leave, stripper plate pushes down the edge of moulding during separation, under moulding is departed from from convex module, realizes automatic demoulding.

By using above-mentioned technical proposal, the beneficial effects of the utility model are：Above-mentioned thread core is arranged on rotatably On the axostylus axostyle of slip, the core pulling that thread core can be realized by rotating shaft rod of the thread core during demoulding on axostylus axostyle, and Axostylus axostyle is connection rotating drive mechanism again, therefore can realize the effect of automatic core-pulling；Above-mentioned axostylus axostyle limiting structure can be realized Auto-action, it can play and preferably limit effect, and the structure be advantageous between the first mould and the second mould is connected and set Put；The structure setting of first mould and ingenious in design with the attachment structure setting structure of other parts, by above-mentioned de- Mould method can be seen that, is acted by die sinking and drives stripping action, so as to realize the automatic demoulding effect of moulding, die sinking demoulding step It is rapid succinct；Overall structure connection will not disperse after die sinking, and tedious steps will not be brought to matched moulds, once relative can make during matched moulds Firmly on matched moulds, matched moulds is close, and it is more perfect to be molded by the moulding come；The matched moulds die sinking work of above-mentioned mould can be without artificial Participate in carrying out, artificial labor intensity can be reduced, reduce human cost, the Integral connection structure of mould is less prone to failure.

Brief description of the drawings

Fig. 1 and Fig. 2 is a kind of structural representation for the tool internal thread moulding mould that the utility model is related to；

Fig. 3 is A-A sectional views in Fig. 2.

Fig. 4 is B-B sectional views in Fig. 2.

Fig. 5 is C-C sectional views in Fig. 2.

Fig. 6 is D-D sectional views in Fig. 2.

In figure：

First mould 1；First outside plate 11；Convex module 12；Stripper plate 13；Isolating construction 14；

Sliding eye 141；Pull bar 142；Pull ring 1421；

Second mould 2；First through hole 21；Axostylus axostyle 3；Thread core 31；

Injection die cavities 4；Material hole 5；Rotating drive mechanism 6；Motor 61；Gear 62；Chain 63；

Axostylus axostyle limiting structure 7；Fixed plate 71；Second through hole 711；Movable plate 72；

Spacer block 73；Support column 731；Mobile link structure 74；Counterbore 741；

Third through-hole 742；Spring 743；Bolt 744；

First positioning guiding structure 81；

First positioning block structure 82；Second positioning guiding structure 83；Second positioning block structure 84；

Tension structure 9；Plug hole 9；Plug through hole 92；Nylon plug 93；Screw hole 931；Lead screw 94；

Locking part 10.

Embodiment

In order to which the technical solution of the utility model is explained further, come below by a complete specific embodiment to this Utility model is described in detail.

The moulding mould of the disclosed tool internal thread of the utility model, as shown in figures 1 to 6, including the first mould 1, the second mould Tool 2 and axostylus axostyle 3, second mould 2 offer the first through hole 21 to match with axostylus axostyle 3, and the axostylus axostyle 3 is rotatable and slides Be located in first through hole 21, can be set by bearing, one end of the axostylus axostyle 3 is through the second mould 2 and is provided with screw thread Core 31, the mould 1 of thread core 31 and first, the second mould are 2-in-1 and form the injection die cavities 4 of moulding, and described first The mould 2 of mould 1 or second is provided with the material hole 5 led in injection die cavities 4, is arranged in figure on the first mould 1.Here illustrate Once, form injection die cavities 4 may also include other, such as form the core of moulding side edge recesses structure, also be wrapped in mould Corresponding component and its attachment structure are included, in matched moulds, die sinking and release method also there is corresponding steps or structure to act, this practicality is new It is not directed to not shown in the improvement of the part therefore the part figure, also not be described further in text in type.Carried out using the mould Injection, after moulding injection molding, the separation between moulding and thread core 31 is to exit axostylus axostyle 3 by rotating shaft rod 3 Moulding, i.e. the core pulling of rotating shaft rod 3, then separating the first mould 1 and the second mould 2 again makes under the moulding demoulding, takes out injection Part.

Further, the axostylus axostyle 3 connects rotating drive mechanism 6, drives axostylus axostyle 3 to rotate come real by rotating drive mechanism 6 The automatic core-pulling of thread core 31 when being now stripped, in the present embodiment, the structure of the rotating drive mechanism 6 as shown in figure 3, including The motor 61 being erected on the second mould 2, the gear 62 being separately positioned on the output shaft of motor 61 and axostylus axostyle 3, and The chain 63 of connection two gears 62 of transmission, drives rotating shaft 3 to rotate by controlling start and stop and the rotating of motor 61 to realize Thread core 31 is formed injection die cavities 4 through first through hole 2, or rotate and exit carry out core pulling, the rotating drive mechanism 6 Other known drive technology can be used, the application purpose effect of other drive technologies is identical, as equivalent technologies, belongs to this The protection domain of utility model.

Appearance influences moulding precision, the feelings of the tight ness rating of matched moulds when further, to prevent axostylus axostyle 3 before injection and being molded Condition, as shown in FIG., the mould also include the axostylus axostyle limiting structure 7 for limiting the action of axostylus axostyle 4, described in the present embodiment The concrete structure of axostylus axostyle limiting structure 7 includes fixed plate 71, movable plate 72, spacer block 73 and mobile link structure 74；It is described solid The corresponding axostylus axostyle 3 of fixed board 71 offers the second through hole 711 passed through for the other end of axostylus axostyle 3；The spacer block 73 is arranged on the second mould Between tool 2 and fixed plate 71 and three locks together, and the spacer block 73 shown in figure is the long strip block for being arranged on two sides, The space being separated out is mainly used in the transmission space for the middle gear 62 of rotating drive mechanism 6 and chain 63, the second mould 2 described in figure Also lock provided with its interval supporting role of support column 731 around axostylus axostyle 3 between fixed plate 71；The movable plate 72 passes through Mobile link structure 74 is arranged on the outside of fixed plate 71, its role is to withstand the end of axostylus axostyle 3, so as to play to axostylus axostyle 3 Action limits；The mobile link structure 74, the counterbore 741 for including being opened on movable plate 72 as shown in Figure 4, it is opened in fixation Third through-hole 742, spring 743 and bolt 744 on plate 71, the bolt 744 is through counterbore 741 and third through-hole 742 and holds Portion locks on spacer block 73, the bolt head of the bolt 744 not may pass through counterbore 741, i.e. the end of bolt 744 connects Withstanding movable plate 72 prevents that movement is deviate from during separation, and the spring 743 is set on bolt 744 and is embedded in third through-hole 742 And both ends are withstood on spacer block 73 and movable plate 72 respectively, mobile link structure described in figure 74 laid on mould it is multiple, with Mobile balance is kept, the movable plate 72 can pass through pressure respectively（Pressure can be member pressure from injection machine or It is other pressing structures）It is bonded realizing opposing fixed plate 71 with the tension force of spring 743 and separate mobile, can limits during fitting Axostylus axostyle 3 exits, and separation rear axostyle 3 can exit core pulling, and in Fig. 3, the first through hole 21 is pyramidal structure, and the axostylus axostyle 3 is set There is the pyramidal structure matched corresponding to pyramidal structure under matched moulds state, when can improve 31 matched moulds of thread core on axostylus axostyle 3 Tight ness rating.

Mould in the present embodiment is that die sinking is realized in relative direction separation when molding, and is accurate for ease of die sinking and matched moulds Degree and speed, as shown in figure 4, being set between the movable plate 72 and fixed plate 71, spacer block 73, the second mould 2, the first mould 1 There is the first positioning guiding structure 81 that pilot hole and guide rod are formed, mobile link structure described in figure 74 is laid more on mould Individual, to keep the balance slided, the fixing end of the guide rod, which is arranged on, to be advantageous to the overall structure of mould and sets on movable plate 71 Meter, meet mould die sinking and mould assembling action structure design.Similarly to improve the precision of matched moulds, as shown in figure 3, first mould Tool 1 be respectively equipped with the second mould 2 can be mutually chimeric the first positioning block structure 82.

Further, as shown in FIG., first mould 1 is convex on the first outside plate 11 including the first outside plate 11, projection Module 12 and matching are set in the stripper plate 13 around convex module 12, and the convex module 12 is with stripper plate 13 backwards to the first outside plate 11 One side structure form the one side structure of moulding, that is, form the structure of moulding die cavity 4, the stripper plate 13 and first The isolating construction 14 that both are automatically separated can be made when the demoulding is provided between outside plate 11, because material hole 5 described in the present embodiment is set Put on the first mould, so moulding is bonded on the first mould when being molded after injection molding, therefore pass through isolating construction 14 can go out moulding from automatic demoulding on the first mould 1.In the present embodiment, as shown in FIG., the tool of the isolating construction 14 Body structure, which includes corresponding to, is opened in the first outside plate 11, stripper plate 13, the second mould 2, spacer block 73, fixed plate 71 and movable plate 72 On sliding eye 141 and through the pull bar 142 in all sliding eyes 141, the slip on 13 plates of the demoulding and the second mould 1 The diameter in hole 141 is less than the diameter of other sliding eyes 141；The both ends of the pull bar 142, which are respectively equipped with, pulls ring 1421, the drawing The diameter of rotating ring 1421 is more than the diameter of the sliding eye 141 on the mould 2 of stripper plate 13 and second, straight less than other sliding eyes 141 Footpath, after being separated to certain distance in die sinking, one end of pull bar 142 can be pushed up on the second mould 2, and the other end can withstand on stripper plate 13 On, because stripper plate 13 is a part for composition injection die cavities 4, i.e., it is connected with the edge of moulding, and be the direction of the demoulding, Therefore it is further continued for also can just pulling stripper plate 13 to separate with the first outside plate 11 during die sinking separation, realizes moulding from first On mould 1 under automatic demoulding, so that it may take out moulding, the structure can also cause the first mould 1 and the second mould 2 to connect all the time Connect, that is, also connected after molding by pull bar 142, this is also beneficial to fast accurate matched moulds.

Further, it is the separating distance of the limitation outside plate 11 of stripper plate 13 and first, as shown in Figure 5, first outside plate 11st, the second positioning guiding structure 83 formed between the mould 2 of stripper plate 13 and second provided with pilot hole and guide rod, described second The fixing end of the guide rod of positioning guiding structure 83 is arranged on the first outside plate 11, and its other end, which is provided with, can prevent that stripper plate 13 is de- The structure gone out, the also structure setting are advantageous to the first tool 1 and the separating distance of the second mould 2 is easy to take out moulding, i.e., When under moulding being stripped from the first mould 1, stripper plate 13 will not so facilitate taking-up note very close to the second mould 2 Plastic.

Further, as shown in fig. 6, being additionally provided with tension structure 9 between the mould 2 of first mould 1 and second.For entering one Tight ness rating during step raising mould matched moulds and pulling force during offer die sinking.The concrete structure of tension structure 9 described in the present embodiment As shown in FIG., including be opened on the second mould 2 plug hole 91, be opened on stripper plate 13 and 91 corresponding glue of plug hole Plug through hole 92, nylon plug 93 and lead screw 94, the nylon plug 93 are located in plug hole 91 and plug through hole 92, and it is worn The one end being located on the second mould 2 is provided with screw hole 931, and its other end locks on the first outside plate 1 through plug through hole 92, institute A diameter of diminishing structure for head one end rearwardly one end of lead screw 94 is stated, the lead screw 94 is screwed togather into screw In hole 931, the swell diameter of nylon plug 93 can be fitted tightly in the side wall of plug hole 91, the diameter after the swell of nylon plug 93 When more than plug hole 91 diameter, can be pressed into plug hole firmly but because nylon plug 93 has certain softness, during matched moulds In 91, so also make it that therefore tight ness rating between the two is higher, also can produce pulling force, so as to realize above-mentioned work in die sinking With shown in the above-mentioned figure of plug hole 91 is the pore structure that can lead to outside, and nylon plug 93 is pressed into plug when being advantageous to matched moulds The air discharge in plug hole 91 is compressed during hole 91, is easy to matched moulds.

In the present embodiment, as shown in figure 4, being respectively equipped with can mutually be fitted together to on the outside plate 11 of the stripper plate 13 and first Two positioning block structures 84, the structure setting and the structure setting of the first positioning block structure 82 on the first mould 1 and the second mould 2 Act on it is identical, for improve matched moulds precision.

In the present embodiment, as shown in figure 1, the mould 2 of first mould 1 and second tool between side wall on be additionally provided with locking part 10, the close of matched moulds is improved in the both ends of the locking part 10 respectively by screw locking on the first outside plate 11 and the second mould 2 Degree and fastening structure, the situation for preventing from occurring influenceing moulding injection effect during injection occurs, before die sinking after moulding Need first to dismantle down locking part just be molded.

Release method during above-mentioned mould die sinking is described below in detail, automatic demoulding step of the injection molding after cooling is such as Under, 1）, release to the pressure of movable plate, movable plate is separated with fixed plate, form the space for supplying axostylus axostyle to exit；This practicality is new If movable plate is pushed down by the structure of injection machine in type, then it is to remove machinery to moving to release to the pressure of movable plate The structure of dynamic plate pressure.

2）, start rotating drive mechanism, by rotating drive mechanism drive axostylus axostyle rotation thread core is exited injection Part realizes that automatic core-pulling acts.

3）, by injection machine the first mould and the second mould opposite direction are separated, now moulding is bonded in On one mould.

4）, continue to separate the first mould and the second mould, until the pull bar of isolating construction pulls demoulding block by itself and first Outside plate separates, and stripper plate pushes down the edge of moulding during separation, under moulding is departed from from convex module, realizes automatically The demoulding.

Above-described embodiment and schema and non-limiting product form of the present utility model and style, any art The appropriate change or modification that those of ordinary skill is done to it, all should be regarded as not departing from patent category of the present utility model.

Claims (8)

1. A kind of 1. automatic demoulding structure of mould, it is characterised in that：Including the first mould and the second mould, first mould and Second mould, which merges, forms injection die cavities, and first mould is provided with the material hole led in injection die cavities, first mould Tool includes the stripper plate that the convex module and matching of the first outside plate, projection on the first outside plate are set in around convex module, described convex Module and stripper plate form the one side structure of moulding backwards to the one side structure of the first outside plate, outside the stripper plate and first Can make the isolating construction that both are automatically separated when the demoulding is provided between plate, so as to by moulding from automatic demoulding on the first mould Go out.
2. A kind of 2. automatic demoulding structure of mould as claimed in claim 1, it is characterised in that：The isolating construction includes corresponding It is opened in the first outside plate, stripper plate and sliding eye on the second mould and through the pull bar in all sliding eyes, the demoulding The diameter of plate and the sliding eye on the second mould is less than the diameter of other sliding eyes；The both ends of the pull bar are respectively equipped with pulling Ring, the diameter for pulling ring diameter to be more than stripper plate and the sliding eye on the second mould, less than the diameter of other sliding eyes, from And stripper plate is pulled to be separated with the first outside plate.
3. A kind of 3. automatic demoulding structure of mould as claimed in claim 2, it is characterised in that：First outside plate, stripper plate And second be provided with the second positioning guiding structure that pilot hole and guide rod are formed between mould, second positioning guiding structure The fixing end of guide rod is arranged on the first outside plate, and its other end is provided with the structure that can prevent that stripper plate from deviating from.
4. A kind of 4. automatic demoulding structure of mould as described in claim 1,2 or 3, it is characterised in that：First mould and Tension structure is additionally provided between second mould.
5. A kind of 5. automatic demoulding structure of mould as claimed in claim 4, it is characterised in that：The tension structure includes opening up Plug hole on the second mould, corresponding with plug hole plug through hole, nylon plug and lead screw, institute are opened on stripper plate State nylon plug to be located in plug hole and plug through hole, its one end being located on the second mould is provided with screw hole, and its is another End through plug through hole locking on the first outside plate, the lead screw for head one end rearwardly one end it is a diameter of gradually contracting Small structure, the lead screw are screwed togather into screw hole, and nylon plug swell diameter can be fitted tightly in the side wall of plug hole.
6. A kind of 6. automatic demoulding structure of mould as claimed in claim 5, it is characterised in that：First mould and the second mould The first positioning block structure that can be mutually fitted together to is respectively equipped with tool.
7. A kind of 7. automatic demoulding structure of mould as claimed in claim 5, it is characterised in that：The stripper plate and the first outside plate On be respectively equipped with the second positioning block structure that can be mutually fitted together to.
8. A kind of 8. automatic demoulding structure of mould as claimed in claim 5, it is characterised in that：First mould and the second mould Locking part is additionally provided with side wall between tool, the both ends of the locking part are respectively by screw locking in the first outside plate and the second mould On tool.