CN207415883U - A kind of axostylus axostyle for having screw thread core pulling mold limits mechanism - Google Patents

Abstract

The utility model discloses a kind of axostylus axostyle for having screw thread core pulling mold and limits mechanism, including the first mold, the second mold and axostylus axostyle, second mold offers the first through hole to match with axostylus axostyle, the axostylus axostyle is rotatably and that slides is threaded through in first through hole, the mold further includes the axostylus axostyle for being useful for limiting axostylus axostyle action and limits mechanism, axostylus axostyle action can be limited by limiting mechanism by the axostylus axostyle, so that molding is close, it prevents from exiting in injection front axostyle and influences moulding precision, preferable restriction effect can be played.

Description

A kind of axostylus axostyle for having screw thread core pulling mold limits mechanism

Technical field

The utility model is related to injection mold field, moulding mold and its demoulding side of internal thread are specifically related to Method.

Background technology

For the mold of injection molding tool internal thread moulding, since it is with internal thread, there is shape in the cavity of mold Into the core of screw thread, the demoulding of moulding is time-consuming and laborious after existing this mold injection molding, demoulding efficiency and its low, can not Realize automatic stripping result, these are also to influence one of production efficiency factor, and demoulding efficiency also is difficult to be promoted, 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 is to provide one kind can automatic demoulding, carry it is efficient it is a kind of have internal thread moulding Mold；The another object of the utility model is the automatic demoulding method for providing this kind of mold.

To achieve the above object, the technical solution of the utility model is：Has the moulding mold of internal thread, including the first mould Tool, the second mold and axostylus axostyle, second mold offer the first through hole to match with axostylus axostyle, and the axostylus axostyle is rotatable and sliding Dynamic is threaded through in first through hole, one end of the axostylus axostyle through the second mold and equipped with thread core, the thread core with First mold, the second mold merge the injection die cavities for forming moulding, and first mold or the second mold, which are equipped 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 includes the driving motor being erected on the second mold, is separately positioned on driving motor output The chain of gear and connection two gears of transmission on axis and axostylus axostyle.

The mold further includes the axostylus axostyle for being useful for limiting axostylus axostyle action and limits mechanism.

The axostylus axostyle, which limits mechanism, includes fixed plate, movable plate, spacer block and mobile connection structure, and the fixed plate corresponds to Axostylus axostyle offers the second through hole passed through for the axostylus axostyle other end, and the spacer block is arranged between the second mold and fixed plate and three Person locks together, and the movable plate can withstand axle end by mobile connection structure setting in the outside of fixed plate, described Mobile connection 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 It states spring and is 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 mold and fixed plate.

Also locking is equipped with support column around axostylus axostyle between second mold and fixed plate.

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

First mold be respectively equipped on the second mold can be mutually chimeric the first positioning block structure.

First mold 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, Both can make the separated structure being automatically separated when the demoulding is equipped between the stripper plate and the first outside plate, so as to by moulding from the Automatic demoulding goes out on one mold.

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

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

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

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

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

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

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

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

3), the first mold and the second mold opposite direction are separated, moulding is bonded on the first mold at this time；

4), continue to separate the first mold and the second mold, until separated structure pulls demoulding block by itself and the first outside plate point It leaving, stripper plate pushes down the edge of moulding during separation, under moulding is departed from from convex module, realization 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 limits mechanism and can realize Auto-action can play preferable restriction effect, and the structure be conducive between the first mold and the second mold is connected and sets It puts；The structure setting of first mold and ingenious in design with the connection 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 fulfill 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 molding, and when molding once opposite can be made Firmly in molding, molding is close, and it is more perfect to be molded by the moulding come；The molding die sinking work of above-mentioned mold can be without manually It participates in carrying out, artificial labor intensity can be reduced, reduce human cost, the Integral connection structure of mold is less prone to failure.

Description of the drawings

Fig. 1 and Fig. 2 be the utility model is related to a kind of tool internal thread moulding mold structure diagram；

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 mold 1；First outside plate 11；Convex module 12；Stripper plate 13；Separated structure 14；

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

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

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

Axostylus axostyle limits mechanism 7；Fixed plate 71；Second through hole 711；Movable plate 72；

Spacer block 73；Support column 731；Mobile connection 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；Rubber plug hole 9；Rubber plug through hole 92；Nylon rubber plug 93；Screw hole 931；Lead screw 94；

Locking part 10.

Specific 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 mold of the disclosed tool internal thread of the utility model, as shown in figures 1 to 6, including the first mold 1, the second mould Tool 2 and axostylus axostyle 3, second mold 2 offer the first through hole 21 to match with axostylus axostyle 3, and the axostylus axostyle 3 is rotatable and slides Be threaded through in first through hole 21, can be set by bearing, one end of the axostylus axostyle 3 is through the second mold 2 and equipped with screw thread Core 31, the thread core 31 merge with the first mold 1, the second mold 2 form moulding injection die cavities 4, described first 1 or second mold 2 of mold is equipped with the material hole 5 led in injection die cavities 4, is arranged in figure on the first mold 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 mold Corresponding component and its connection structure are included, in molding, die sinking and release method also there is corresponding steps or structure to act, this practicality is new Therefore the improvement that the part is not directed in type is not shown in figure the part, be not also described further in text.It is carried out using the mold 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. 3 core pulling of rotating shaft rod, then separating the first mold 1 and the second mold 2 again makes under the moulding demoulding, takes out injection Part.

Further, the axostylus axostyle 3 connects rotating drive mechanism 6, by rotating drive mechanism 6 axostylus axostyle 3 is driven to rotate come real The automatic core-pulling of thread core 31 when now demoulding, in the present embodiment, the structure of the rotating drive mechanism 6 is as shown in figure 3, bag The driving motor 61 being erected on the second mold 2, the gear 62 being separately positioned on 61 output shaft of driving motor and axostylus axostyle 3 are included, And the chain 63 of connection two gears 62 of transmission, by controlling start and stop and the rotating of driving motor 61 3 turns of shaft is driven to realize It is dynamic that thread core 31 is made to exit carry out core pulling, the rotating drive mechanism 6 through the composition injection die cavities 4 of first through hole 2 or rotation Other known drive technology can also be used, the application purpose effect of other drive technologies is identical, is equivalent technologies, belongs to The scope of protection of the utility model.

Appearance influences moulding precision, the feelings of the tight ness rating of molding when further, to prevent axostylus axostyle 3 before injection and being molded Condition, as shown in FIG., the mold, which further includes, to be useful for limiting the axostylus axostyle restriction mechanism 7 that axostylus axostyle 4 acts, described in the present embodiment The concrete structure that axostylus axostyle limits mechanism 7 includes fixed plate 71, movable plate 72, spacer block 73 and mobile connection structure 74；It is described solid Fixed board 71 corresponds to axostylus axostyle 3 and offers the second through hole 711 passed through for 3 other end of axostylus axostyle；The spacer block 73 is arranged on the second mould Between tool 2 and fixed plate 71 and three locks together, and 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 for the transmission space for 6 middle gear 62 of rotating drive mechanism and chain 63, the second mold 2 described in figure Also lock equipped with its interval supporting role of support column 731 around axostylus axostyle 3 between fixed plate 71；The movable plate 72 passes through Mobile connection structure 74 is arranged on the outside of fixed plate 71, its role is to withstand 3 end of axostylus axostyle, so as to play to axostylus axostyle 3 Action limits；The mobile connection structure 74 includes the counterbore 741 being opened on movable plate 72, is opened in fixation as shown in Figure 4 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 respectively on spacer block 73 and movable plate 72, mobile connection structure described in figure 74 laid on mold it is multiple, with Keep mobile balance, the movable plate 72 can respectively by pressure (pressure can be member pressure from injection machine or It is other pressing structures) and 743 tension of spring is bonded realizing opposing fixed plate 71 and separate mobile, when fitting, can limit Dead axle bar 3 exits, and separation rear axostyle 3 can exit core pulling, and in Fig. 3, the first through hole 21 is pyramidal structure, the axostylus axostyle 3 Equipped with the matched pyramidal structure corresponding to pyramidal structure under molding state, the thread core 31 that can be improved on axostylus axostyle 3 molds When tight ness rating.

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

Further, as shown in FIG., first mold 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 cavity 4, the stripper plate 13 and first The separated structure 14 that can be automatically separated the two during the demoulding is equipped between outside plate 11, since material hole 5 described in the present embodiment is set It puts on the first mold, so moulding is sticked on the first mold when being molded after injection molding, therefore passes through separated structure 14 can go out moulding from automatic demoulding on the first mold 1.In the present embodiment, as shown in FIG., the tool of the separated structure 14 Body structure includes correspondence and is opened in the first outside plate 11, stripper plate 13, the second mold 2, spacer block 73, fixed plate 71 and movable plate 72 On sliding eye 141 and through the pull rod 142 in all sliding eyes 141, the slip on 13 plates of the demoulding and the second mold 1 The diameter in hole 141 is less than the diameter of other sliding eyes 141；The both ends of the pull rod 142, which are respectively equipped with, pulls ring 1421, the drawing 1421 diameter of rotating ring is more than the diameter of the sliding eye 141 on 13 and second mold 2 of stripper plate, straight less than other sliding eyes 141 Footpath, after being separated to certain distance in die sinking, one end of pull rod 142 can be pushed up on the second mold 2, and the other end can withstand on stripper plate 13 On, since 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 stripper plate 13 can just being pulled to separate with the first outside plate 11 during die sinking separation, realizes moulding from first On mold 1 under automatic demoulding, so that it may take out moulding, which can also cause the first mold 1 and the second mold 2 to connect always It connects, that is, is also connected after molding by pull rod 142, this is also beneficial to fast accurate molding.

Further, it is the separating distance of limitation 13 and first outside plate 11 of stripper plate, as shown in Figure 5, first outside plate 11st, the second positioning guiding structure 83 formed between 13 and second mold 2 of stripper plate equipped 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 the other end, which is equipped with, can prevent stripper plate 13 The structure of abjection also has the structure setting to be conducive to the separating distance of the first tool 1 and the second mold 2 convenient for taking out moulding, When under moulding being demoulded from the first mold 1, stripper plate 13 will not be very close to the second mold 2, thus convenient for taking-up Moulding.

Further, as shown in fig. 6, being additionally provided with tension structure 9 between first mold, 1 and second mold 2.For into one Tight ness rating during step raising mold clamping 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 mold 2 rubber plug hole 91, be opened on stripper plate 13 and 91 corresponding glue of rubber plug hole Plug through hole 92, nylon rubber plug 93 and lead screw 94, the nylon rubber plug 93 are threaded through in rubber plug hole 91 and rubber plug through hole 92, wear The one end being located on the second mold 2 is equipped with screw hole 931, and the other end locks through rubber plug through hole 92 on the first outside plate 1, institute A diameter of diminishing structure that lead screw 94 is head one end rearwardly one end is stated, the lead screw 94 is screwed togather into screw In hole 931,93 swell diameter of nylon rubber plug can be fitted tightly on 91 side wall of rubber plug hole, the diameter after 93 swell of nylon rubber plug When more than rubber plug hole 91 diameter, but since nylon rubber plug 93 has certain softness, when molding, can be pressed into rubber plug hole firmly In 91, so but also tight ness rating between the two is higher, pulling force therefore also can be generated in die sinking, so as to fulfill above-mentioned work With above-mentioned rubber plug hole 91 is shown in figure for that can lead to external pore structure, and nylon rubber plug 93 is pressed into rubber plug when being conducive to molding The air discharge in rubber plug hole 91 is compressed during hole 91, convenient for molding.

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

In the present embodiment, as shown in Figure 1, first mold, 1 and second mould 2 tool between side wall on be additionally provided with locking part 10, the close of molding is improved in the both ends of the locking part 10 respectively by screw locking on the first outside plate 11 and the second mold 2 Degree and fastening structure prevent occurring influencing happening for moulding injection effect during injection, before die sinking after moulding It needs first to dismantle down locking part just mold.

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

2) rotating drive mechanism, is started, the rotation for driving axostylus axostyle by rotating drive mechanism makes thread core exit injection Part realizes automatic core-pulling action.

3), the first mold and the second mold opposite direction are separated by injection machine, moulding is bonded at this time On one mold.

4), continue to separate the first mold and the second mold, until the pull rod of separated structure 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.

The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field The appropriate variation or modification that those of ordinary skill does it all should be regarded as not departing from the patent category of the utility model.

Claims (5)

1. a kind of axostylus axostyle for having screw thread core pulling mold limits mechanism, it is characterised in that：The core-pulling die includes the first mold, the Two molds and axostylus axostyle, second mold offer the first through hole to match with axostylus axostyle, and the axostylus axostyle rotatably and slides It is threaded through in first through hole, the core-pulling die further includes the axostylus axostyle for being useful for limiting axostylus axostyle action and limits mechanism；The axostylus axostyle Limiting mechanism includes fixed plate, movable plate, spacer block and mobile connection structure, and the fixed plate corresponds to axostylus axostyle and offers for axostylus axostyle The second through hole that the other end passes through, the spacer block is arranged between the second mold and fixed plate and three locks together, institute Axle end can be withstood in the outside of fixed plate by mobile connection structure setting by stating movable plate, and the mobile connection structure includes The counterbore being opened on movable plate, the third through-hole, spring and the bolt that are opened in fixed plate, the bolt is through counterbore and the Simultaneously end locking is on spacer block for three through holes, and the bolt head of the bolt not may pass through counterbore, and the spring is set in bolt On be embedded in third through-hole and both ends are withstood on spacer block and movable plate respectively, the movable plate can pass through pressure and bullet respectively Spring tension realizes opposing fixed plate fitting and separate mobile, and the axostylus axostyle connects rotating drive mechanism, the rotation driving machine Structure includes the driving motor being erected on the second mold, the gear being separately positioned in driving motor output shaft and axostylus axostyle and connects Connect the chain of two gears of transmission；The gear of the rotating drive mechanism is correspondingly arranged at the interval between the second mold and fixed plate In space.

2. a kind of axostylus axostyle for having screw thread core pulling mold as described in claim 1 limits mechanism, it is characterised in that：Second mould Also locking is equipped with support column around axostylus axostyle between tool and fixed plate.

3. a kind of axostylus axostyle for having screw thread core pulling mold as claimed in claim 1 or 2 limits mechanism, it is characterised in that：The shifting The first positioning and guiding that pilot hole and guide rod are formed is equipped between movable plate and fixed plate, spacer block, the second mold, the first mold Structure, the fixing end of the guide rod are arranged on movable plate.

4. a kind of axostylus axostyle for having screw thread core pulling mold as claimed in claim 1 or 2 limits mechanism, it is characterised in that：Described One mold be respectively equipped on the second mold can be mutually chimeric the first positioning block structure.

5. a kind of axostylus axostyle for having screw thread core pulling mold as claimed in claim 4 limits mechanism, it is characterised in that：First mould Have be respectively equipped on the second mold can be mutually chimeric the first positioning block structure.