CN101104307A - Die device for injection forming - Google Patents
Die device for injection forming Download PDFInfo
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- CN101104307A CN101104307A CNA2007101283510A CN200710128351A CN101104307A CN 101104307 A CN101104307 A CN 101104307A CN A2007101283510 A CNA2007101283510 A CN A2007101283510A CN 200710128351 A CN200710128351 A CN 200710128351A CN 101104307 A CN101104307 A CN 101104307A
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- core
- mould
- undercut
- die device
- injection forming
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Abstract
The present invention provides a mould device for injection forming. A screw thread core (51) hold by a second part (50) of a core component (4), and being pulled from the screw thread part (92) by means of the rotation of a gear strip (6) and a gear row (7) when a first mould (2) and a second mould (3) separating. A core for cutting root (41) and a first part (40) of the core component (4) form one body, and doffing mould from a root cutting part (91) by means of the sliding connection of a inclined pin (34) and a inclined pin hole (57) when a movable side mould (31) and a movable support board (32) separating.
Description
Technical field
The die device for injection forming of (the ア Application ダ カ Star ト) processing mechanism that the present invention relates to have undercut relates in particular to and can once form the die device for injection forming that is arranged on the threaded portion in the undercut portion with undercut portion.
Background technology
In the past, as this die device for injection forming, known for example had a special die device for injection forming of being put down in writing in the clear 56-63428 communique of opening.
The undercut that this die device for injection forming has a figuration undercut portion is with the thread core of core and figuration threaded portion, constitutes can once carry out undercut with the demoulding of core from the demoulding of undercut portion and thread core from the threaded portion when the die sinking of mould.
Described patent documentation 1 described device, undercut constitute with core that switching campaign with mould links and with respect to undercut portion advance and retreat in mechanism, on one side but thread core constitutes the power that passes through electro-motor rotates and advance and retreat with respect to the threaded portion.Therefore, except electro-motor, also need to be used to control the control circuit of the rotating speed of this electro-motor and the beginning of driving or the timing that stops etc. and be used to detect die sinking sensor regularly etc., so the problem that exists die manufacturing cost to increase.
On the other hand, known have by use made up the mechanism etc. of rack and pinion row and link in mechanism with the switching campaign of mould and to rotate the technology of extraction thread core.Therefore, also consider following situation: by such technology of migrating, link in mechanism with the switching campaign of mould, undercut can be advanced and retreat on each assigned position respectively with core and thread core both sides, but also do not have the die device of such link gear up to now.
As its background, there is the problem of the versatility of die device.That is, in the die device that injection moulding is used, many uses will the core mold corresponding with the shape of formed article be inserted and are configured in type in the main body compression mod.The die device of the type can be inserted by the replacing core mold under the situation that shape of products changes and tackle, so the versatility height.
But, be assembled into the die device of described such link gear, in the situation of the shape of reply change undercut portion or the pitch of threaded portion etc. or when forming the situation etc. of other goods that do not have undercut portion or threaded portion, need significantly change or take off link gear etc., have the low drawback of versatility.
Summary of the invention
The present invention proposes in view of described situation, purpose is to provide a kind of die device for injection forming, it can not use drive sources such as electro-motor and the threaded portion that is arranged in the undercut portion is once formed with undercut portion, and also can easily tackle the shape change of formed article etc., the versatility height.
Die device for injection forming of the present invention has: first mould; During die sinking at second mould that maintains under the state of the product of being formed with described first mold separation; The undercut core of the undercut portion of the described product that are formed of figuration; Figuration is configured in the thread core of the threaded portion in the described undercut portion, and described die device for injection forming is characterised in that,
Have:
First motion changing mechanism, its switching motion converter with described first and second mould are rotatablely moving of described thread core and to the motion of the advance and retreat of described threaded portion;
Second motion changing mechanism, its switching motion converter with described first and second mould are described undercut with the advance and retreat motion to described undercut portion of core;
And core assembly, it has described undercut each part with core, described thread core, described first and second motion changing mechanism, and between described first and second mould in this second die side, on the advance and retreat direction of described thread core, can be mounted movably.
In die device for injection forming of the present invention, described first motion changing mechanism can have: be arranged on first inclined plane on described first mould; Be arranged on the described core assembly and when the switching of described first and second mould and second inclined plane of slipping, described first inclined plane; The direction of leaving from described threaded portion to described thread core is to the force application part of the described core assembly application of force.
In addition, this first motion changing mechanism can also have: keep described thread core and guarantee its revolvable maintaining part, be erected at tooth bar between described first and second mould, be configured in the gear row between described maintaining part and the described tooth bar in described core assembly.
In addition, described second mould comprises that pattern that maintains described core assembly and the supporting plate that can separate with this pattern, described second motion changing mechanism have and remains on the angled pin on the described supporting plate and be arranged on inclination pin-and-hole on the described core assembly.
In addition, described core assembly can constitute, comprise: maintain the first of described undercut with core, the second portion that maintains this thread core that forms with on the advance and retreat direction of described thread core, separating with described first, when the die sinking of described first and second mould, at first, make described second portion separate and move via described first motion changing mechanism with the rotation of described thread core and from the mode of the described threaded portion demoulding from described first, then, from the mode of the described undercut portion demoulding described first is moved with core with described undercut via described second motion changing mechanism.
In addition, preferred, described first and described undercut form with core.
In addition, can constitute, described thread core is formed on inserts an end of leading to the thin axial region in the inserting hole that connects in the described first,
The other end of described thin axial region remains on an end that is disposed at the thick axial region in the described second portion,
Described thick axial region can rotate in described second portion and can be held movably with respect to this second portion, and by this thick axial region rotation, described thread core is rotated with described thin axial region.
And then, preferred, between described first and described second portion, dispose the mode that remains in the hole portion that is formed in this second portion and separate from described second portion with described first helical spring to the described first application of force.
According to die device for injection forming of the present invention, have switching motion converter with mould and be first motion changing mechanism of the rotatablely moving of thread core and the motion of advancing and retreat and be second motion changing mechanism of undercut with the advance and retreat motion of core with the switching motion converter of mould, thus, can not use drive sources such as electro-motor and the threaded portion that is arranged in the undercut portion is once formed with undercut portion.
In addition, possesses core assembly, described core assembly has undercut each part with core, thread core and first and second motion changing mechanism, thus, in the situation of the shape of change undercut portion or the pitch of threaded portion etc. or be shaped and do not have under the situation of other goods of undercut portion or threaded portion, the parts of the part by the change core assembly or core assembly is changed to other core mold insert can easily be tackled.
Description of drawings
Fig. 1 is the longitudinal section (during mold closing) of the die device for injection forming of an embodiment.
Fig. 2 is the longitudinal section (die sinking phase I) of the die device for injection forming of an embodiment.
Fig. 3 is the longitudinal section (die sinking second stage) of the die device for injection forming of an embodiment.
Fig. 4 is the longitudinal section (die sinking phase III) of the die device for injection forming of an embodiment.
Fig. 5 is the vertical view (partly cut-away) of the core assembly of Fig. 1～shown in Figure 4.
Symbol description
1 die device for injection forming
2 first moulds
3 second moulds
4 core assemblies
6 tooth bars
7 gears row
9 product that are formed
11 chambeies
12 fill the road
13 (in filling the road, solidifying) resin
21 main body compression mods
22 cavity adaptor plates
23 fixation side core mold are inserted
24 tilted blocks
24a first inclined plane
25,36,59 inserting holes
26 running channels inlet
31 movable side patterns
32 movable side supporting plates
33 movable side core mold are inserted
34 angled pins
35 rail portion
40 firsts
41 undercut cores
43 inserting holes
44 bolts
The 44a head
The 44b axial region
44c screw thread formation portion
45 helical springs
46 screwed holes
47,56 shoulders
50 second portions
51 thread core
52 thin axial regions
53 thick axial regions
54 spatial portions
The 54a fastener
55 hole portions
57 inclination pin-and-holes
58 second inclined planes
61 dentures
71,74 axial regions
72,73,75,76 gears
91 undercut portions
92 threaded portions
X (die device) center line
Y (thread core) axis
The specific embodiment
Below, the embodiment that present invention will be described in detail with reference to the accompanying.Fig. 1～Fig. 4 be one embodiment of the present invention die device for injection forming 1 (below, abbreviate " die device 1 " as) longitudinal section, when Fig. 1 represented mold closing, Fig. 2 represented the phase I of die sinking, Fig. 3 represents the second stage of die sinking, and Fig. 4 represents the phase III of die sinking.In addition, Fig. 5 is the vertical view (figure that the top is observed from the figure of Fig. 1～Fig. 4) of the core assembly of partly cut-away ground presentation graphs 1～shown in Figure 4.In addition, in Fig. 1～Fig. 4, only represented the part on right side in the figure of center line X of die device 1.In addition, in Fig. 2～Fig. 4, omit the diagram of part of the downside of movable side supporting plate 32, among Fig. 4, omitted the diagram of first mould 2.
Fig. 1～die device 1 shown in Figure 4 is used for injection moulding is provided with threaded portion 92 in undercut portion 91 the product 9 that are formed such as lens frame (with reference to Fig. 2～Fig. 4), have first mould 2 of fixation side, second mould 3 and the core assembly 4 of movable side.
As shown in Figure 1, described first mould 2 constitutes to have: main body compression mod 21, be configured in the cavity adaptor plate 22 of upside among the figure of this main body compression mod 21, be assembled into fixation side core mold in the main body compression mod 21 respectively and insert 23 and tilted block 24, upside is installed not shown injection machine in the figure of cavity adaptor plate 22.
On the other hand, described second mould 3 comprise with described first mould, 2 opposed movable side patterns 31, with respect to this movable side pattern 31 can dispose in the drawings the movable side supporting plate 32 of below discretely, the movable side core mold that are assembled in the movable side pattern 31 insert 33, upside in the figure of movable side pattern 31 maintains described core assembly 4 in the drawings and guarantees that it can move on the left and right directions.In addition, on movable side supporting plate 32, the angled pin 34 that extend obliquely the top in the digraph is installed.
Described core assembly 4 has as the undercut of the undercut portion 91 of the product 9 that are formed as described in the figuration of Fig. 2～shown in Figure 4 and is configured in the thread core 51 of the threaded portion 92 in this undercut portion 91 and following formation with core 41 and figuration.
Promptly, this core assembly 4 comprises and maintains described undercut with the first 40 of core 41 (in the present embodiment, form with core 41 with undercut) and maintain the second portion 50 of described thread core 51, these firsts 40 and second portion 50 constitute and can be separated from each other on the advance and retreat direction (left and right directions among the figure) of described thread core 51.Described thread core 51 is formed on inserts on the end (left part among the figure) lead to the thin axial region 52 in the inserting hole 43 that connects in the described first 40 on left and right directions in the drawings, and the other end of this thin axial region 52 (right part among the figure) remains on the end (left part among the figure) that is disposed at the interior thick axial region 53 of described second portion 50.This thick axial region 53 in described second portion 50, can rotate and can with respect to second portion 50 in the drawings right and left move up and be held, by these thick axial region 53 rotations, described thread core 51 is with described thin axial region 52 rotations.In addition, thick axial region 53 is held via bearings such as ball bearing or sliding bearings, but has omitted bearing among the figure.
More specifically, as shown in Figure 5, described first 40 and described second portion 50 link mutually via bolt 44, in addition, dispose helical spring 45 between these firsts 40 and second portion 50.In the spatial portion 54 of described bolt 44 in being formed at described second portion 50, its head 44a and axial region 44b can be held on the left and right directions in the drawings movably, and the screw thread formation 44c of portion of its front end spins with the screwed hole 46 that is formed in the described first 40.On the other hand, described helical spring 45 remains in the hole portion 55 that is formed in the described second portion 50, by its elasticity to the mode application of force of described first 40 to separate from described second portion 50.In addition, this helical spring 45 constitute to described thread core 51 leave from described threaded portion 92 (with reference to Fig. 4) towards force application part to core assembly 4 application of forces.
Described first 40 and described second portion 50 constitute under the effect of the power that applies of described helical spring 45 and are separated from each other the position of the fastener 54a butt of the head 44a of described bolt 44 and described spatial portion 54, under this released state, described thread core 51 slowly enters in the inserting hole 43 of described first 40 (with reference to Fig. 2～Fig. 4).In addition, though omitted diagram in Fig. 5, described bolt 44 and described helical spring 45 be with respect to the axis Y of thread core 51, with the position of illustrated position symmetry on also dispose one group.
In addition, as shown in Figure 5, two ends up and down in the figure of described first 40 and described second portion 50 are formed with the shoulder 47,56 that left and right directions (the axis Y direction of thread core 51) in the drawings extends.These shoulders 47,56 are configured to extend in parallel to each other on the left and right directions in the drawings with upside in the figure of movable side pattern 31 shown in Figure 1 and the pair of guide rails portion 35 (only illustrating a side) that forms joins, when described first 40 and described second portion 50 move, slip with this rail portion 35.
In addition, as shown in Figure 5, right part in the figure of described second portion 50 is formed with the inclination pin-and-hole 57 that plugs described angled pin 34 (with reference to Fig. 1).And then as shown in Figure 1, upper right end in the figure of this second portion 50 is formed with when the switching of described first mould 2 and described second mould 3 and second inclined plane 58 that the first inclined plane 24a of described tilted block 24 slips.
In addition, the die device 1 of present embodiment has: first motion changing mechanism, its switching motion converter with described first mould 2 and described second mould 3 are rotatablely moving of described thread core 51 and to the motion of the advance and retreat of described threaded portion 92; Second motion changing mechanism, its switching motion converter with described first mould 2 and described second mould 3 are described undercut with the advance and retreat motion of core 41 to described undercut portion 91.
As Fig. 1～shown in Figure 3, described first motion changing mechanism has: as in described core assembly 4, keep described thread core 51 and guarantee its revolvable maintaining part described thin axial region 52 and described thick axial region 53, be erected at tooth bar 6 between described first mould 2 and described second mould 3, be configured in the gear row 7 between described thick axial region 53 and the described tooth bar 6.
As Fig. 1～shown in Figure 3, described tooth bar 6 is configured in the drawings that upper and lower extends upward, and its upper end is fixed on the main body compression mod 21 of described first mould 2.In movable side pattern 31 and each inside of movable side supporting plate 32 and the inside of described core assembly 4 of the inside of described main body compression mod 21, described second mould 3, be formed with the inserting hole 25,36,59 of configuration tooth bar 6 respectively.In addition, the inserting hole 59 in the core assembly 4 in the drawings the size of left and right directions form bigger than other inserting holes 25,36 so that when core assembly 4 mobile, do not interfere with tooth bar 6.
As Fig. 1～shown in Figure 3, described gear row 7 comprise: two gears 72,73 of installing coaxially with respect to maintained axial region 71 revolvably in described movable side pattern 31; In the second portion 50 of described core assembly 4, be installed in the gear 75 on the maintained revolvably axial region 74; With the gear 76 that is installed in mode on the described thick axial region 53 with these gear 75 engagements.Described gear 72 is configured to denture 61 (with reference to Fig. 1) engagement with described tooth bar 6, and described gear 73 and described gear 75 are configured to be meshing with each other.
In addition, along with moving of the second portion 50 of described core assembly 4, described gear 75 and described gear 73 engagements, and depart from the left and right directions in the drawings the position of engagement with respect to this gear 73, be accompanied by moving of described second portion 50 and moving of the described thick axial region 53 in this second portion, described gear 76 and described gear 75, and depart from the left and right directions in the drawings (with reference to Fig. 1～Fig. 4) with respect to the position of engagement of this gear 75.In addition, described each axial region 71,74 is held via bearings such as ball bearings, but has omitted bearing among the figure.
And then as Fig. 1～shown in Figure 3, described first motion changing mechanism has: the first inclined plane 24a that is configured in the described tilted block 24 of described first mould, 2 sides; When the switching of described first and second mould 2,3 and this first inclined plane 24a described second inclined plane 58 that is configured in described core assembly 4 sides of slipping; Be configured in the described first 40 of core assembly 4 and the described helical spring 45 (with reference to Fig. 5) between the described second portion 50.
On the other hand, as Fig. 1～shown in Figure 3, described second motion changing mechanism has the described inclination pin-and-hole 57 on described angled pin 34 that remains on the described movable side supporting plate 32 and the second portion 50 that is arranged on described core assembly 4.
Below, the effect of the die device 1 of present embodiment is described.
At first, when mold closing shown in Figure 1, described core assembly 4 acts on as follows.Promptly, slip mutually on first inclined plane 24a of described first mould, 2 sides and second inclined plane 58 of described core assembly 4 sides, thus, the second portion 50 of described core assembly 4 overcome described helical spring 45 (with reference to Fig. 5) the power that applies and with first 40 right-hand pushing in figure, thus, described undercut respectively forms the position with what core 41 and thread core 51 laid respectively at the undercut portion 91 of the described product 9 that are formed and threaded portion 92 (with reference to Fig. 4).
Under the state when this mold closing, between described first mould 2, described second mould 3 and described core assembly 4, the filling road 12 that forms the chamber 11 of the described product 9 (with reference to Fig. 4) that are formed, links the molten resin of the running channel inlet 26 that is formed on the described cavity adaptor plate 22 from this chamber 11, never illustrated injection machine is filled into molten resin in the chamber 11.
Then, in the second stage of phase I of die sinking shown in Figure 2 and die sinking shown in Figure 3, described first mould 2 and described second mould 3 are separated from each other on the above-below direction in the drawings, and the described product 9 that are formed remain on second mould, 3 sides with the resin 13 that solidifies from 2 demouldings of first mould in described filling road 12.
In this die sinking process, the second portion 50 of described core assembly 4 makes described second inclined plane 58 slip with the described first inclined plane 24a on one side, by the apply power of described helical spring 45 (with reference to Fig. 5) from first 40 separate and to figure right-hand move on one side.In addition, side by side, move below in figure with respect to described tooth bar 6 by described second mould 3, the gear row 7 of getting in touch with this tooth bar 6 rotate, thus, make described thread core 51, and slowly extract from described threaded portion 92 with described thin axial region 52 and 53 rotations of described thick axial region.
In addition, be accompanied by the extracting and right-hand the moving to figure of described second portion 50 from described threaded portion 92 of described thread core 51 of the die sinking of first and second mould 2,3, all the beginning with die sinking begins simultaneously, but moving of second portion 50 carried out earlier and finish.That is, be accompanied by moving of the second portion 50 that carries out earlier, this thick axial region 53 of right-hand formation mobile space (with reference to Fig. 2) second portion 50 in the figure of described thick axial region 53.With mode right-hand the moving to figure that is pushed out from described threaded portion 9 according to its thread pitch, thus, described thick axial region 53 moves (with reference to Fig. 3) in the mode in the described space of landfill by the rotation of self for described thread core 51.
Then, in the phase III of die sinking shown in Figure 4, the movable side pattern 31 of described second mould 3 and movable side supporting plate 32 are separated from each other on the above-below direction in the drawings.At this moment, slip by the angled pin 34 of movable side supporting plate 32 sides and the inclination pin-and-hole 57 of described core assembly 4 sides, the second portion 50 of core assembly 4 and first 40 be right-hand moving in figure, thus, described undercut is with undercut portion 91 demouldings of core 41 from the described product 9 that are formed, and described thread core 51 to from the threaded portion 92 positions of leaving move.
Die device 1 according to such present embodiment, because is that undercut moves with the advance and retreat motion of core 41 and the rotation and the advance and retreat of thread core 51 with the switching campaign of first mould 2 and second mould 3 at mechanism's up conversion, make so can not use drive source such as electro-motor to be arranged on undercut portion 91 interior threaded portions 92 and once to form with undercut portion 91.
In addition, when the shape of change undercut portion 91 or the pitch of threaded portion 91 etc. or when shaping does not have their other goods, the parts of part that can be by change core assembly 4 or with core assembly 4 or fixation side core mold insert 23, movable side core mold inserts and 33 etc. changes to other core mold and insert and deal with, thereby the versatility height.
In addition, from the prior art, carry out in the device of the demoulding of thread core in the driving force of using electro-motor etc., detect the moment that moment that die sinking finishes or die sinking proceed to the regulation stage by sensor etc. usually, and detect the demoulding of beginning thread core according to this.In said embodiment, owing to side by side begin the demoulding of thread core,, can accelerate forming period so compare with such prior art with the beginning of die sinking.
In addition, in injection moulding die device of the present invention, the formation of first and second motion changing mechanism is not limited to the situation shown in the described embodiment, can carry out various changes.In addition, with core or thread core etc., also can use the core of different shape for undercut.
Claims (8)
1. die device for injection forming, it has: first mould; During die sinking at second mould that maintains under the state of the product of being formed with described first mold separation; The undercut core of the undercut portion of the described product that are formed of figuration; Figuration is configured in the thread core of the threaded portion in the described undercut portion, and described die device for injection forming is characterised in that,
Have:
First motion changing mechanism, its switching motion converter with described first and second mould are rotatablely moving of described thread core and to the motion of the advance and retreat of described threaded portion;
Second motion changing mechanism, its switching motion converter with described first and second mould are described undercut with the advance and retreat motion to described undercut portion of core;
And core assembly, it has described undercut each part with core, described thread core, described first and second motion changing mechanism, and between described first and second mould in this second die side, on the advance and retreat direction of described thread core, can be mounted movably.
2. die device for injection forming as claimed in claim 1 is characterized in that,
Described first motion changing mechanism has: be arranged on first inclined plane on described first mould; Be arranged on the described core assembly and when the switching of described first and second mould and second inclined plane of slipping, described first inclined plane; The direction of leaving from described threaded portion to described thread core is to the force application part of the described core assembly application of force.
3. die device for injection forming as claimed in claim 2 is characterized in that,
Described first motion changing mechanism has: keep described thread core and guarantee its revolvable maintaining part, be erected at tooth bar between described first and second mould, be configured in the gear row between described maintaining part and the described tooth bar in described core assembly.
4. die device for injection forming as claimed in claim 2 is characterized in that,
Described second mould comprises pattern that maintains described core assembly and the supporting plate that can separate with this pattern,
Described second motion changing mechanism has and remains on the angled pin on the described supporting plate and be arranged on inclination pin-and-hole on the described core assembly.
5. die device for injection forming as claimed in claim 2 is characterized in that,
Described core assembly constitutes, and comprising: maintain the second portion that maintains this thread core that described undercut forms with separating with described first with the first of core on the advance and retreat direction of described thread core,
When the die sinking of described first and second mould, at first, make described second portion separate and move via described first motion changing mechanism with the rotation of described thread core and from the mode of the described threaded portion demoulding from described first, then, from the mode of the described undercut portion demoulding described first is moved with core with described undercut via described second motion changing mechanism.
6. die device for injection forming as claimed in claim 5 is characterized in that,
Described first and described undercut form with core.
7. die device for injection forming as claimed in claim 5 is characterized in that,
Described thread core is formed on inserts an end of leading to the thin axial region in the inserting hole that connects in the described first,
The other end of described thin axial region remains on an end that is disposed at the thick axial region in the described second portion,
Described thick axial region can rotate in described second portion and can be held movably with respect to this second portion, and by this thick axial region rotation, described thread core is rotated with described thin axial region.
8. die device for injection forming as claimed in claim 5 is characterized in that,
Between described first and described second portion, dispose the mode that remains in the hole portion that is formed in this second portion and separate from described second portion with described first helical spring to the described first application of force.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006-188750 | 2006-07-10 | ||
| JP2006188750 | 2006-07-10 | ||
| JP2006188750A JP2008012873A (en) | 2006-07-10 | 2006-07-10 | Mold assembly for injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101104307A true CN101104307A (en) | 2008-01-16 |
| CN101104307B CN101104307B (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101283510A Expired - Fee Related CN101104307B (en) | 2006-07-10 | 2007-07-10 | Die device for injection forming |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008012873A (en) |
| CN (1) | CN101104307B (en) |
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| CN103895177A (en) * | 2014-03-25 | 2014-07-02 | 昆山市大久电子有限公司 | Double-color mold plate capable of controlling thickness of product |
| CN105856509A (en) * | 2016-05-31 | 2016-08-17 | 永高股份有限公司 | Injection mold threaded rack matching type eight-head internal thread core-pulling mechanism |
| CN109551718A (en) * | 2018-11-02 | 2019-04-02 | 浙江工商职业技术学院 | A kind of pulled core structure three times of mold |
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| US8320191B2 (en) | 2007-08-30 | 2012-11-27 | Infineon Technologies Ag | Memory cell arrangement, method for controlling a memory cell, memory array and electronic device |
| JP5179127B2 (en) * | 2007-09-19 | 2013-04-10 | 株式会社山城精機製作所 | Mold screw removal device |
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| CN102601933B (en) * | 2012-02-26 | 2014-09-24 | 宁波思迈工业科技有限公司 | Threaded core pulling device with automatically reset thread starting point |
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| CN105500635B (en) * | 2015-11-09 | 2017-12-05 | 宁波市环英汽配有限公司 | Injection mold for side core-pulling |
| KR101861565B1 (en) | 2016-01-04 | 2018-05-29 | 주식회사 삼우금형 | Injection molding apparatus |
| CN106853670A (en) * | 2017-03-02 | 2017-06-16 | 苏州启达工程塑料科技有限公司 | Various back-off moulds |
| CN111070595A (en) * | 2020-02-18 | 2020-04-28 | 创意塑胶工业（苏州）有限公司 | Injection mold for removing threads of plastic part |
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| JPH0126423Y2 (en) * | 1984-10-12 | 1989-08-08 | ||
| CN100406229C (en) * | 2005-10-25 | 2008-07-30 | 台州市黄岩金塑模具有限公司 | Method and device for withdrawing and inserting mold core synchronized with mold opening and closing |
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2006
- 2006-07-10 JP JP2006188750A patent/JP2008012873A/en not_active Abandoned
-
2007
- 2007-07-10 CN CN2007101283510A patent/CN101104307B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103128936A (en) * | 2013-01-23 | 2013-06-05 | 宁波誉立精密模具有限公司 | Thread side core-pulling mechanism |
| CN103128936B (en) * | 2013-01-23 | 2015-09-02 | 宁波誉立精密模具有限公司 | Whorl side core-pulling mechanism |
| CN103895177A (en) * | 2014-03-25 | 2014-07-02 | 昆山市大久电子有限公司 | Double-color mold plate capable of controlling thickness of product |
| CN103895177B (en) * | 2014-03-25 | 2017-02-08 | 昆山一邦泰汽车零部件制造有限公司 | Double-color mold plate capable of controlling thickness of product |
| CN103878907A (en) * | 2014-04-11 | 2014-06-25 | 昆山市兴凯胜精密模具有限公司 | Mould opening and thread reaming synchronizing mould |
| CN105856509A (en) * | 2016-05-31 | 2016-08-17 | 永高股份有限公司 | Injection mold threaded rack matching type eight-head internal thread core-pulling mechanism |
| CN109551718A (en) * | 2018-11-02 | 2019-04-02 | 浙江工商职业技术学院 | A kind of pulled core structure three times of mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101104307B (en) | 2011-06-15 |
| JP2008012873A (en) | 2008-01-24 |
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