CN109421232A - A kind of injection molding apparatus preparing the Injection Molding Products with back-off shape mesh - Google Patents

A kind of injection molding apparatus preparing the Injection Molding Products with back-off shape mesh Download PDF

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Publication number
CN109421232A
CN109421232A CN201710749516.XA CN201710749516A CN109421232A CN 109421232 A CN109421232 A CN 109421232A CN 201710749516 A CN201710749516 A CN 201710749516A CN 109421232 A CN109421232 A CN 109421232A
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CN
China
Prior art keywords
injection molding
mold
mould
block
wear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710749516.XA
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Chinese (zh)
Inventor
韦俊军
黄清刚
陈垚
熊向军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Silver Basis Technology Co Ltd
Original Assignee
Shenzhen Silver Basis Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Silver Basis Technology Co Ltd filed Critical Shenzhen Silver Basis Technology Co Ltd
Priority to CN201710749516.XA priority Critical patent/CN109421232A/en
Publication of CN109421232A publication Critical patent/CN109421232A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/64Mould opening, closing or clamping devices
    • B29C45/66Mould opening, closing or clamping devices mechanical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/44Removing or ejecting moulded articles for undercut articles
    • B29C2045/4492Removing or ejecting moulded articles for undercut articles preventing damage or deformation of undercut articles during ejection

Abstract

The present invention provides a kind of injection molding apparatus for preparing the Injection Molding Products with back-off shape mesh, comprising: offers the preceding mould of the first injection molding space and placement space;Offer the rear mold in the second injection molding space;And rear mold and the cooperation of preceding mould mold;The auxiliary type position part being set in placement space, the first injection molding space, the second injection molding space and auxiliary type position part form injection die cavities, are provided with installation through-hole on the part of auxiliary type position;The bullet block structure being installed in installation through-hole, playing block structure can slide along the central axial direction of installation through-hole, and the end to offset with the wall surface of rear mold for playing block structure is tapered;After the completion of preceding mould and rear mold molding, the bottom surface for playing the end of block structure and the second injection molding space of rear mold is abutted against;During preceding mould and rear mold die sinking are detached from, the end for playing block structure moves out injection die cavities.It is able to solve in the prior art existing for the moulding of production back-off shape through-hole the problem of Shooting Technique complexity, the high rejection rate of Injection Molding Products using the technical program.

Description

A kind of injection molding apparatus preparing the Injection Molding Products with back-off shape mesh
Technical field
The present invention relates to injection molding tooling technical fields, and in particular, to a kind of moulding prepared with back-off shape mesh The injection molding apparatus of product.
Background technique
During injection molding has meshed moulding, if mesh is straight hole or is cone cell along depanning direction Mesh (is directed toward depanning direction in cone end), at this point, design mode column (generally, can be molded after die sinking on the type bottom of chamber face of rear mold Part can be retained in rear mold, then eject moulding from rear mold), it is supported using the type chamber of type column and preceding mould to which casting is molten Melt and form netted open-end hole after raw material, still, if through-hole is back-off shape (the i.e. direction at cone end and depanning direction phase at this time Instead), it just has to carry out the such moulding of aided injection mould production by type core in the prior art.Auxiliary system is being carried out using type core During remarks plastic, the assembly of type core is fixed not only to become a great problem, and after pouring operation completion, it is necessary to need Injection Molding Products could be demoulded after type core being dismantled first completely, greatly reduce the production effect of Injection Molding Products Rate, and in disassembly type core and during demoulded, the structure type of the die apparatus of the prior art easily causes to be molded Part product is pullled damage, and rejection rate is caused to increase.
Summary of the invention
The purpose of the present invention is to provide it is a kind of prepare with back-off shape mesh Injection Molding Products injection molding apparatus, Aim to solve the problem that the waste product of Shooting Technique complexity, Injection Molding Products existing for the moulding of production back-off shape through-hole in the prior art The high problem of rate.
In order to solve the above technical problems, the technical scheme is that providing a kind of note prepared with back-off shape mesh The injection molding apparatus of plastic product, comprising: preceding mould offers the first injection molding space and placement space on preceding mould;Rear mold, rear mold On offer the second injection molding space;And rear mold and the cooperation of preceding mould mold;Auxiliary type position part, auxiliary type position part are set to placement space In, injection die cavities are formed between the first injection molding space, the second injection molding space and auxiliary type position part three, wherein auxiliary type position Installation through-hole is provided on part, installation through-hole is connected with injection die cavities;Block structure is played, block structure is played and is installed in installation through-hole, Playing block structure can slide along the central axial direction of installation through-hole, and the end that plays block structure extends into injection die cavities and rear mold Wall surface offsets, and the end to offset with the wall surface of rear mold for playing block structure is tapered;Wherein, after the completion of preceding mould and rear mold mold, The bottom surface for playing the end of block structure and the second injection molding space of rear mold abuts against;During preceding mould and rear mold die sinking are detached from, bullet block The end of structure moves out injection die cavities.
Further, playing block structure includes: forming blocks, and forming blocks are installed in installation through-hole, and preceding mould has been molded with rear mold Cheng Hou, the first end of forming blocks are supported with preceding mould, and second end and the rear mold of forming blocks are supported;Compression elastic piece, compression elastic piece First end connect with forming blocks, the second end of compression elastic piece is connect with auxiliary type position part, preceding mould and rear mold molding after the completion of, Compression elastic piece is had by compression is applied to forming blocks so that the second end of forming blocks pops up the elastic force of injection die cavities.
Further, compression elastic piece is compression helical spring.
Further, playing block structure further includes gag lever post, and for the first end fixed-link of gag lever post in forming blocks, installation is logical Limit hole is equipped at the corresponding wall surface in hole, the second end of gag lever post is plugged in limit hole.
Further, preparation has the injection molding apparatus of the Injection Molding Products of back-off shape mesh further include: the first hooking Component, the first hooking component are set in rear mold;Second hooking component, the second hooking component are set on the part of auxiliary type position, when When preceding mould and rear mold molding are completed, the second hooking component hooking corresponding with the first hooking component is lived, and current mould and rear mold die sinking are de- From in the process, the second hooking component and the first hooking component are detached from hooking state.
Further, it further includes connection guiding that preparation, which has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, Bar, the first end for connecting guide rod are fixed in the placement space of preceding mould, and the second end for connecting guide rod is open end, auxiliary type Position part setting is on connection guide rod, and auxiliary type position part can be moved along the central axial direction of connection guide rod, and connection is led The direction for being directed away from the first hooking component to the second end of bar is obliquely installed.
Further, it further includes auxiliary mould-opening bullet that preparation, which has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, Spring, the preload of auxiliary mould-opening spring-compressed are set between preceding mould and auxiliary type position part.
Further, the first wear-resistant block is installed in rear mold, the second wear-resistant block is installed on the part of auxiliary type position, preceding mould with After the completion of rear mold molding, the first wear-resistant block contacts with each other with the second wear-resistant block, during preceding mould and rear mold die sinking are detached from, first Relative sliding between wear-resistant block and the second wear-resistant block.
Further, it is also equipped with third wear-resistant block on the part of auxiliary type position, the 4th wear-resistant block is installed on preceding mould, the 4th is resistance to Abrading block can contact to Relative sliding setting with third wear-resistant block.
Further, the first wear-resistant block or the second wear-resistant block are equipped with the first holding tank of receiving greasing substance;Third is resistance to Abrading block or the 4th wear-resistant block are equipped with the second holding tank of receiving greasing substance.
The injection molding apparatus of the technical program carries out the moulding by casting of moulding mesh using block structure is played, and simplifies note The complexity of plastic product mesh processing and forming reduces installation, disassembly for assistant formation in terms of existing technologies The process of the type position column of mesh, and the auxiliary type position part in the injection molding apparatus automatically disengages moulding in the process of die sinking Product takes out without stopping Injection Molding Products to be detached from injection die cavities, avoids Injection Molding Products and is blocked and pulls and damage, Reduce the rejection rate of Injection Molding Products.
Detailed description of the invention
Fig. 1 is the preceding mould for the injection molding apparatus that the preparation of the embodiment of the present invention has the Injection Molding Products of back-off shape mesh With the first assembling structure schematic diagram of auxiliary type position part;
Fig. 2 is the preceding mould for the injection molding apparatus that the preparation of the embodiment of the present invention has the Injection Molding Products of back-off shape mesh With the second assembling structure schematic diagram of auxiliary type position part;
Fig. 3 is the auxiliary for the injection molding apparatus that the preparation of the embodiment of the present invention has the Injection Molding Products of back-off shape mesh The mounted inside structural schematic diagram of type position part;
Fig. 4 is the auxiliary for the injection molding apparatus that the preparation of the embodiment of the present invention has the Injection Molding Products of back-off shape mesh The structural schematic diagram of type position part;
Fig. 5 is the bullet block for the injection molding apparatus that the preparation of the embodiment of the present invention has the Injection Molding Products of back-off shape mesh The structural schematic diagram of structure.
In the accompanying drawings:
10, preceding mould;20, auxiliary type position part;21, installation through-hole;22, spring mounting groove;23, guide rod perforating;24, it hooks Hanging component mounting groove;30, block structure is played;31, forming blocks;32, compression elastic piece;33, gag lever post;40, the second hooking component; 41, it links up with;42, bolt is connected;50, guide rod is connected;60, auxiliary mould-opening spring;70, the second wear-resistant block;100, moulding produces Product.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element referred to as " is connected to " another element, it can be with It is directly to another element or is indirectly connected on another element.
It should also be noted that, the positional terms such as left and right, upper and lower in the present embodiment, be only each other relative concept or It is reference with the normal operating condition of product, and should not be regarded as restrictive.
As shown in Figures 1 to 5, the preparation of the present embodiment has the injection molding apparatus of the Injection Molding Products of back-off shape mesh Including preceding mould 10, rear mold (not shown), auxiliary type position part 20 and play block structure 30, offer on preceding mould 10 first injection molding space and Placement space offers the second injection molding space in rear mold;And rear mold and the cooperation of preceding mould 10 mold, auxiliary type position part 20, which is set to, to be put In between emptying, injection die cavities are formed between the first injection molding space, the second injection molding space and 20 three of auxiliary type position part, wherein Installation through-hole 21 is provided on auxiliary type position part 20, installation through-hole 21 is connected with injection die cavities, and on the wall surface of placement space It is corresponding on auxiliary type position part 20 to be equipped with locating convex block (not shown) with positioning groove equipped with positioning groove (not shown), just with this It is assembled after capable of rapidly being positioned to auxiliary type position part 20 with preceding mould 10, plays block structure 30 and be installed in installation through-hole 21, Playing block structure 30 can slide along the central axial direction of installation through-hole 21, the end for playing block structure 30 extend into injection die cavities and The wall surface of rear mold offsets, and plays the tapered setting in end of block structure 30 to offset with the wall surface of rear mold, i.e., plays agllutination at this time The end of structure 30 is located at injection die cavities and participates in the mesh that moulding by casting is formed by Injection Molding Products 100 as back-off shape mesh. Wherein, preceding mould 10 and the bottom surface in the second injection molding space of the end and rear mold that after the completion of rear mold molding, play block structure 30 abut against; During preceding mould 10 is detached from rear mold die sinking, the end for playing block structure 30 moves out injection die cavities.
Using the preparation there is the injection molding apparatus of the Injection Molding Products of back-off shape mesh to carry out injection molding moulding Product 100, by preceding mould 10 first injection molding space, rear mold second injection molding space and auxiliary type position part three between formed Injection die cavities carry out the injected plastics material of casting melting, and the second injection molding space of the end by playing block structure 30 and rear mold Wall surface abuts, to make Injection Molding Products 100 form mesh during moulding by casting, when casting injected plastics material is completed and is molded Material solidification forms after Injection Molding Products 100 and carries out mold-break operations to preceding mould 10 and rear mold, de- in preceding mould 10 and rear mold die sinking Injection Molding Products 100 are detached from from the meeting of block structure 30 pop-up injection die cavities first in the process, are played, then proceed to make preceding mould 10 with after Mould is detached from, so that Injection Molding Products be taken out.In this way, being simplified using the moulding by casting for playing the progress moulding mesh of block structure 30 The complexities of 100 mesh processing and formings of Injection Molding Products reduces installation, disassembly is used in terms of existing technologies The process of the type position column of assistant formation mesh, and the preparation has the injection molding apparatus of the Injection Molding Products of back-off shape mesh In auxiliary type position part 20 automatically disengage in the process of die sinking Injection Molding Products 100 without stop Injection Molding Products 100 be detached from Injection die cavities and take out, avoid Injection Molding Products and be blocked and pull and damage, reduce the rejection rate of Injection Molding Products 100.
As shown in Figure 3 and Figure 5, the bullet block structure 30 of the present embodiment includes forming blocks 31 and compression elastic piece 32, forming blocks 31 are installed in installation through-hole 21, and preceding mould 10 is with after the completion of rear mold molding, and the first end of forming blocks 31 is supported with preceding mould 10, molding The second end of block 31 is supported with rear mold, and the first end of compression elastic piece 32 is connect with forming blocks 31, and the second of compression elastic piece 32 End is connect with auxiliary type position part 20, and with after the completion of rear mold molding, compression elastic piece 32 is had and be applied to by compression preceding mould 10 Type block 31 is so that the second end of forming blocks 31 pops up the elastic force of injection die cavities.Using the forming blocks 31 provided in the technical program Back-off shape mesh in injection die cavities on assistant formation Injection Molding Products 100, the i.e. aperture of mesh are by rear mold to preceding mould 10 It is gradually reduced on direction.During mold-break operations, and before removing the ejection rear mold of Injection Molding Products 100, molding Injection die cavities are popped up under the action of refined popular elastic component 32 in the end of block 31, so that forming blocks 31 will not be to taking-up moulding The ejection process of product 100 causes to hinder or pull and damage Injection Molding Products 100, guarantees that Injection Molding Products 100 completely take out While simplify the injection molding technique of Injection Molding Products 100, improve the production efficiency of injection molding.
Specifically, compression elastic piece is compression helical spring.
In order to guarantee that forming blocks 31 can accurately slide in installation through-hole 21, therefore, playing block structure 30 further includes limit Position bar 33, the first end of gag lever post 33 are fixedly connected in forming blocks 31, and limit hole is equipped at the corresponding wall surface of installation through-hole 21 The second end of (not shown), gag lever post 33 is plugged in limit hole.
During carrying out die closing operation with rear mold to preceding mould 10, in order to enable being formed by injection die cavities in casting process Middle to keep stable type chamber form, therefore, the preparation of the present embodiment has the injection molding of the Injection Molding Products of back-off shape mesh Equipment further includes the first hooking component (not shown) and the second hooking component 40, and the first hooking component is set in rear mold, and second Hooking component 40 is set on auxiliary type position part 20, specifically, as shown in Fig. 2, offering hooking component on auxiliary type position part 20 Mounting groove 24, and the second hooking component 40 includes hook 41 and connection bolt 42, and hook 41 connects by the way that connection bolt 42 is fixed It is connected on the slot bottom of hooking component mounting groove 24.When current mould 10 is completed with rear mold molding, the second hooking component 40 and first is hooked Hanging component corresponds to hooking and lives, and during current mould 10 is detached from rear mold die sinking, the second hooking component 40 and the first hooking component are de- From hooking state.
During preceding mould 10 carries out die sinking disengaging with rear mold, in order to enable auxiliary type position part 20 can be accurately opposite Yu Qianmo 10 carries out sliding mold-break operations, and therefore, which has the injection molding apparatus of the Injection Molding Products of back-off shape mesh It further include that connection guide rod 50 connects guide rod 50 before the first end of connection guide rod 50 is fixed in the placement space of mould 10 Second end be open end, auxiliary type position part 20 setting connection guide rod 50 on, specifically, as shown in Figure 3 and Figure 4, auxiliary Guide rod perforating 23 is offered on type position part 20, connection guide rod 50 is arranged in the guide rod perforating 23, and auxiliary type Position part 20 can be moved along the central axial direction of connection guide rod 50, and the second end for connecting guide rod 50 is directed away from first The direction of hooking component is obliquely installed.In the process of die sinking, preceding mould 10 moves up disengaging relative to rear mold, at this time due to first Hooking component and the second hooking component 40 are in hooking state, and auxiliary type position part 20 is fixed with rear mold relative position, and is assisted Type position part 20 slides also along the central axial direction of connection guide rod 50, since connection guide rod 50 is obliquely installed, then makes First hooking component is being mutually disengaged at leisure simultaneously with the second hooking component 40.
Preferably, it further includes auxiliary that the preparation of the present embodiment, which has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, Die sinking spring 60 is helped, the compression of auxiliary mould-opening spring 60, which pre-tightens, to be set between preceding mould 10 and auxiliary type position part 20.Such as Fig. 3 and Fig. 4 It is shown, spring mounting groove 22 is opened up on auxiliary type position part 20, auxiliary mould-opening spring 60 is placed in the spring mounting groove 22, The slot bottom of the first end with spring mounting groove 22 of auxiliary mould-opening spring 60 abuts at this time, and the second end of auxiliary mould-opening spring 60 is with before The wall surface of mould 10 abuts.
In the process of die sinking, preceding mould 10 is slowly detached from rear mold, at this point, due to leading between auxiliary type position part 20 and rear mold The first hooking component and the second hooking component 40 are crossed also in hooking state, then auxiliary type position part 20 and rear mold relative position are solid It is fixed, and auxiliary type position part 20 slides along the central axial direction of connection guide rod 50, when preceding mould 10 is detached from forming blocks 31, at Type block 31 is that pop-up injection die cavities and Injection Molding Products 100 are detached under the compression elasticity effect of compression elastic piece 32, current mould 10 are detached from distance with the die sinking of rear mold when reaching preset distance, at this time the first hooking component and the second hooking component 40 disengaging hooking State continues die sinking process, then auxiliary type position part 20 completely disengages out with rear mold, and at this time before mould 10 and rear mold also Completely disengaged out, this makes it possible to Injection Molding Products 100 are safe and efficient, easily taken out from rear mold.Also, it is opening In mold process, auxiliary mould-opening spring 60 assists applying elastic acting force always, so that mould 10 is detached from rear mold before assisting.
As shown in figure 3, being equipped with the first wear-resistant block (not shown) in rear mold, it is wear-resisting to be equipped with second on auxiliary type position part 20 Block 70, after the completion of preceding mould 10 is molded with rear mold, the first wear-resistant block contacts with each other with the second wear-resistant block 70, in preceding mould 10 and rear mold During die sinking is detached from, Relative sliding between the first wear-resistant block and the second wear-resistant block 70.In addition, also being installed on auxiliary type position part 20 Have third wear-resistant block (not shown), the 4th wear-resistant block (not shown), the 4th wear-resistant block and third wear-resistant block are installed on preceding mould 10 It can contact to Relative sliding setting.Further, the first wear-resistant block or the second wear-resistant block are equipped with the of receiving greasing substance One holding tank;Third wear-resistant block or the 4th wear-resistant block are equipped with the second holding tank of receiving greasing substance.Utilize the first wear-resistant block Cooperate with the cooperation of the second wear-resistant block 70 and third wear-resistant block and the 4th wear-resistant block so that auxiliary type position part 20 and preceding mould 10 it Between sliding motion not will cause the excessive wear of auxiliary type position part 20 Yu preceding mould 10, and make auxiliary type position part 20 and rear mold Between sliding motion not will cause the excessive wear of auxiliary type position part 20 Yu rear mold, thus extend the preparation have back-off shape net The service life of the injection molding apparatus of the Injection Molding Products in hole.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.

Claims (10)

1. a kind of injection molding apparatus for preparing the Injection Molding Products with back-off shape mesh characterized by comprising
Preceding mould offers the first injection molding space and placement space on the preceding mould;
Rear mold offers the second injection molding space in the rear mold;And the rear mold and the preceding mould cooperation mold;
Auxiliary type position part, auxiliary type position part are set in the placement space, first injection molding space, second note Injection die cavities are formed between modeling space and the auxiliary type position part three, wherein it is logical that installation is provided on the part of the auxiliary type position Hole, the installation through-hole are connected with the injection die cavities;
Block structure is played, the bullet block structure is installed in the installation through-hole, and the bullet block structure can be along the installation through-hole Central axial direction sliding, the end for playing block structure extends into the injection die cavities to offset with the wall surface of the rear mold, And the end of the bullet block structure to offset with the wall surface of the rear mold is tapered;
Wherein, after the completion of the preceding mould and the rear mold mold, the second injection molding of the end for playing block structure and the rear mold The bottom surface in space abuts against;During the preceding mould and rear mold die sinking are detached from, the end for playing block structure moves out institute State injection die cavities.
2. preparation as described in claim 1 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In the bullet block structure includes:
Forming blocks, the forming blocks are installed in the installation through-hole, the preceding mould and the rear mold molding after the completion of, it is described at The first end of type block is supported with the preceding mould, and the second end of the forming blocks is supported with the rear mold;
Compression elastic piece, the first end of the compression elastic piece are connect with the forming blocks, the second end of the compression elastic piece It is connect with auxiliary type position part, after the completion of the preceding mould and rear mold molding, the compression elastic piece is had by compression The forming blocks are applied to so that the second end of the forming blocks pops up the elastic force of the injection die cavities.
3. preparation as claimed in claim 2 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In the compression elastic piece is compression helical spring.
4. preparation as claimed in claim 2 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In the bullet block structure further includes gag lever post, and the first end fixed-link of the gag lever post is in the forming blocks, the installation Limit hole is equipped at the corresponding wall surface of through-hole, the second end of the gag lever post is plugged in the limit hole.
5. there is the injection molding of the Injection Molding Products of back-off shape mesh to set for preparation according to any one of claims 1 to 4 It is standby, which is characterized in that the preparation has the injection molding apparatus of the Injection Molding Products of back-off shape mesh further include:
First hooking component, the first hooking component are set in the rear mold;
Second hooking component, the second hooking component are set on the part of the auxiliary type position, when the preceding mould and the rear mold When molding is completed, the second hooking component hooking corresponding with the first hooking component is lived, when the preceding mould and the rear mold During die sinking is detached from, the second hooking component and the first hooking component are detached from hooking state.
6. preparation as claimed in claim 5 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In it further includes connection guide rod, the connection that the preparation, which has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, The first end of guide rod is fixed in the placement space of the preceding mould, and the second end of the connection guide rod is open end, described Auxiliary type position part is arranged on the connection guide rod, and auxiliary type position part can be along the central axis of the connection guide rod Direction is mobile, and the direction that the second end for connecting guide rod is directed away from the first hooking component is obliquely installed.
7. preparation as claimed in claim 6 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In it further includes auxiliary mould-opening spring that the preparation, which has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, described auxiliary Die sinking spring-compressed preload is helped to be set between the preceding mould and auxiliary type position part.
8. preparation as described in claim 1 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In being equipped with the first wear-resistant block in the rear mold, be equipped with the second wear-resistant block on the part of the auxiliary type position, in the preceding mould and institute After the completion of stating rear mold molding, first wear-resistant block contacts with each other with second wear-resistant block, in the preceding mould and the rear mold During die sinking is detached from, Relative sliding between first wear-resistant block and second wear-resistant block.
9. preparation as claimed in claim 8 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In being also equipped with third wear-resistant block on the part of the auxiliary type position, the 4th wear-resistant block be equipped on the preceding mould, the described 4th is wear-resisting Block can contact to Relative sliding setting with the third wear-resistant block.
10. preparation as claimed in claim 9 has the injection molding apparatus of the Injection Molding Products of back-off shape mesh, feature exists In first wear-resistant block or second wear-resistant block are equipped with the first holding tank for receiving greasing substance;The third is wear-resisting Block or the 4th wear-resistant block are equipped with the second holding tank of receiving greasing substance.
CN201710749516.XA 2017-08-28 2017-08-28 A kind of injection molding apparatus preparing the Injection Molding Products with back-off shape mesh Pending CN109421232A (en)

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CN201710749516.XA CN109421232A (en) 2017-08-28 2017-08-28 A kind of injection molding apparatus preparing the Injection Molding Products with back-off shape mesh

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281480A (en) * 2019-08-05 2019-09-27 宁波方正汽车模具股份有限公司 Automobile back door mold

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110281480A (en) * 2019-08-05 2019-09-27 宁波方正汽车模具股份有限公司 Automobile back door mold

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Application publication date: 20190305