CN207889048U - Thread side core-pulling automatic demoulding structure and injection mold - Google Patents
Thread side core-pulling automatic demoulding structure and injection mold Download PDFInfo
- Publication number
- CN207889048U CN207889048U CN201820122963.2U CN201820122963U CN207889048U CN 207889048 U CN207889048 U CN 207889048U CN 201820122963 U CN201820122963 U CN 201820122963U CN 207889048 U CN207889048 U CN 207889048U
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- core
- thread
- rack
- sliding block
- pulling
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Abstract
The utility model discloses a kind of thread side core-pulling automatic demoulding structure and injection molds, using master mold band carry-over bar, the gear spindle drive installed on rack and sliding block coordinates, realize the function of thread back-off demoulding and the back-off core pulling of interior cave, it is connect simultaneously with rack using inclined guide pillar, after rack realizes the de- back-off of thread, it is exited by inclined guide pillar band movable slider, the de- back-off in cave in realizing, and then realize first thread back-off demoulding, then the function of interior cave back-off core pulling is carried out again, above-mentioned function is realized by oil cylinder and motor compared with the existing technology, the utility model is simple in structure, it is convenient to carry out, and production is smooth steady.
Description
Technical field
The utility model is related to a kind of core pulling automatic demoulding structures of injection mold, are specifically related to a kind of thread side core-pulling
Automatic demoulding structure and injection mold.
Background technology
Injection mold is a kind of tool producing plasthetics, is made of dynamic model and cover half two parts, in injection moulding
Dynamic model and cover half, which are closed, constitutes running gate system and cavity, and dynamic model and cover half separation are to take out plastic products when die sinking.But join
See Fig. 1, there is interior cave back-off 110 and thread back-off 120 on some 100 sides of plastic product, it is past after the completion of the injection molding of these products
Toward needing first to carry out internal screw thread back-off demoulding while die sinking, then carry out the back-off core pulling of interior cave again, due to core pulling stroke compared with
Greatly, existing thread side core-pulling automatic demoulding structure uses loose core of oil cylinder, and carries out thread back-off demoulding, knot using servo motor
Structure is too complicated, and unstable when production, therefore, it is necessary to design a kind of thread of the injection mold applied to this plastic product
Side core-pulling automatic demoulding structure.
Invention content
In order to solve the above-mentioned technical problem, the utility model proposes a kind of simple in structure, smooth stable thread sides of production
Core pulling automatic demoulding structure and injection mold.
What the technical solution of the utility model was realized in：
A kind of thread side core-pulling automatic demoulding structure, including sliding block, thread mold insert, gear shaft, spiral tooth socket, rack and tiltedly lead
Column, the thread mold insert include body part, positioned at described body part one end the first threaded portion, be located at the body part other end
The internal thread for being molded plastic product the second threaded portion and interior cave for being molded plastic product fuse portion；The cunning
The through-hole along the slot in core pulling direction and along die sinking direction is formed in block, the through-hole side is connected to the slot, the tooth
Wheel shaft is rotatablely installed by bearing in the slot, and the first threaded portion set is fixed in one end of the gear shaft, the spiral shell
Facing is installed in the slot, and is connect with first threaded portion, one end of the inclined guide pillar and the rack
One end is fixedly connected or the inclined guide pillar and the rack are integrally formed, and the rack is inserted in the through-hole, and with institute
Gear shaft engagement is stated, the through-hole one side wall is the slope coordinated with the inclined guide pillar.
Further, further include the rack guide pad being installed in rear mold, the rack side has along die sinking direction
Guide groove, the rack guide pad passes through the sliding block, and is inserted into the guide groove, limits the relatively described sliding block of rack along die sinking
It moves in direction.
A kind of injection mold, including mother module core, male die core, caster, male template and thread side core-pulling automatic demoulding structure,
The mother module core is set in the middle part of the caster, and the male die core is set in the middle part of the male template, the mother module core and the public affairs
Mode surrounds the cavity for being molded the plastic product with thread back-off, is formed on the mother module core and the male die core side
There is a via for avoiding the thread mold insert, the sliding of other direction stop core pulling directions of the sliding block is set on the male die core and described
In male template outside the mother module core side, and the thread mold insert is made to be inserted in the via, described rack one end with it is described
Caster is fixedly connected, and the other end passes through the through-hole on the sliding block and passes through the male template.
Further, the restricted caster is connected between the caster and the male template to open with the male template
Several pulling plates of mould distance.
Further, the caster and the male template are formed with sliding block notch, the sliding block close to the position of docking
Blend stop is installed, the sliding block slides other direction stop in dropout direction and is set to two blend stops on the opposite both sides of notch
Between.
Further, mold insert is fixed in the core pulling that the corresponding thread mold insert is formed on the male die core, and the core pulling is solid
Determine mold insert and be formed with limit hole, the sliding of other direction stop core pulling directions of the thread mold insert is set in the limit hole.
Further, the mother module core is surrounded with the male die core for being molded four plastic products with thread back-off
Four cavities, two are one group in four cavities, back-to-back arrangement.
The utility model has the beneficial effects that：A kind of thread side core-pulling automatic demoulding structure of the utility model offer and injection molding
Mold, using master mold band carry-over bar, the gear spindle drive installed on rack and sliding block coordinates, and realizes the work(of thread back-off demoulding
Can, while being connect with rack using inclined guide pillar, after rack realizes thread back-off demoulding, exited by inclined guide pillar band movable slider,
Then the function of cave dropout core pulling in realizing carries out the function of interior cave back-off core pulling again to realize first thread back-off demoulding, this
Structure simplifies injection mold, produces smooth steady.Its operation principle is as follows：Rack is fixedly connected with master mold, and sliding block activity is fixed
Position is on male model, when die sinking, is moved with respect to rack in die sinking direction sliding block, by rack and pinion axis engaged transmission, rack
The gear shaft rotation installed in sliding block can be driven, gear shaft can drive thread mold insert to rotate in turn, due to the first of thread mold insert
It is to be threadedly coupled between threaded portion and spiral tooth socket, therefore, the second threaded portion on thread mold insert is in spiral tooth socket and the first threaded portion
Under the action of can automatic demoulding；When thread demoulds completion, the inclined guide pillar of rack lower end is entered just in the through-hole of sliding block, tiltedly
Guide post and the slope of through-hole one side wall coordinate, and sliding block can be driven to retreat, and then thread mold insert is driven to retreat core pulling, realize first spiral shell
Then tooth back-off demoulding carries out the function of interior cave back-off core pulling again.It is realized compared with the existing technology by oil cylinder and motor above-mentioned
Function, the utility model is simple in structure, convenient to carry out, and produces smooth steady.
Description of the drawings
Fig. 1 is one example structure figure of the utility model plastic product；
Fig. 2 is the utility model thread side core-pulling automatic demoulding structural upright structural schematic diagram；
Fig. 3 is the utility model thread side core-pulling automatic demoulding structure sectional view；
Fig. 4 is slide block structure schematic diagram in the utility model；
Fig. 5 is the utility model middle rack, inclined guide pillar and rack guide pad fit structure schematic diagram；
Fig. 6 is the utility model injection mold structure schematic diagram；
Fig. 7 is four thread side core-pulling automatic demoulding Structural assignments schematic diagrames in the utility model injection mold；
In conjunction with attached drawing, do as described below：
1- sliding blocks, 101- slots, 102- through-holes, 103- slopes, 2- thread mold insert 201- body parts, the first screw threads of 202-
Portion, the second threaded portions 203-, 204- fuses portion, 3- gear shafts, 4- spiral tooth sockets, 5- racks, 501- guide grooves, 6- inclined guide pillars, 7-
Bearing, 8- rack guide pads, 9- male die cores, 10- casters, 11- male templates, 12- pulling plates, 13- sliding block notches, 14- blend stops,
Mold insert, 1501- limit holes, 100- plastic products, cave back-off in 110-, the back-off of 120- threads are fixed in 15- core pullings.
Specific implementation mode
To keep the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings to specific embodiment of the present utility model
It is described in detail.
As shown in Figure 2, Figure 3 and Figure 4, a kind of thread side core-pulling automatic demoulding structure, including sliding block 1, thread mold insert 2, tooth
Wheel shaft 3, spiral tooth socket 4, rack 5 and inclined guide pillar 6, the thread mold insert include body part 201, positioned at described body part one end
One threaded portion 202, internal thread positioned at the body part other end for being molded plastic product second threaded portion 203 and use
Fuse portion 204 in the interior cave of molding plastic product；It is formed in the sliding block along the slot 101 in core pulling direction and along die sinking side
To through-hole 102, the through-hole side is connected to the slot, and the gear shaft is rotatablely installed by bearing 7 in the slot,
First threaded portion set is fixed in one end of the gear shaft, and the spiral tooth socket is installed in the slot, and with described first
Threaded portion connects, and one end of the inclined guide pillar is fixedly connected with one end of the rack or the inclined guide pillar and the tooth
Item be integrally formed, the rack is inserted in the through-hole, and engage with the gear shaft, the through-hole one side wall for it is described
The slope 103 of inclined guide pillar cooperation.In this way, in application, rack is fixedly connected with master mold, sliding block activity orientation is opened on male model
It when mould, is moved relative to rack in die sinking direction sliding block, by the engaged transmission of rack and pinion axis, rack can drive peace in sliding block
The gear shaft of dress rotates, and gear shaft can drive thread mold insert to rotate in turn, due to the first threaded portion of thread mold insert and spiral tooth socket
Between be threadedly coupled, therefore, the second threaded portion on thread mold insert can be automatic under the action of spiral tooth socket is with the first threaded portion
Demoulding；When thread demoulds completion, the inclined guide pillar of rack lower end is entered just in the through-hole of sliding block, inclined guide pillar and through-hole side
The slope of wall coordinates, and sliding block can be driven to retreat, and then thread mold insert is driven to retreat core pulling, realizes first thread back-off demoulding, so
Carry out the function of interior cave back-off core pulling again afterwards.Realize that above-mentioned function, this practicality are new by oil cylinder and motor compared with the existing technology
Type is simple in structure, convenient to carry out, and produces smooth steady.
Preferably, further include the rack guide pad 8 being installed in rear mold referring to Fig. 5, the rack side has along die sinking
The guide groove 501 in direction, the rack guide pad passes through the sliding block, and is inserted into the guide groove, and it is relatively described to limit rack
Sliding block is moved along die sinking direction.
Referring to Fig. 6 and Fig. 7, a kind of injection mold, including mother module core, male die core 9, caster 10, male template 11 and above-mentioned
Thread side core-pulling automatic demoulding structure, the mother module core be set to the caster in the middle part of, the male die core be set to the male model
In the middle part of plate, the mother module core surrounds the cavity for being molded the plastic product with thread back-off, the mother with the male die core
The via for avoiding the thread mold insert, other direction stop core pulling sides of the sliding block are formed on mode and the male die core side
To sliding in the male template outside the male die core and the mother module core side, and it is described so that the thread mold insert is inserted in
In via, described rack one end is fixedly connected with the caster, and the other end passes through the through-hole on the sliding block and across described
Male template.In above structure, injection mold application thread side core-pulling automatic demoulding structure is, it can be achieved that first thread back-off demoulds, so
The function of carrying out interior cave back-off core pulling again afterwards molds the first step, male template is moved relative to caster along die sinking direction, male model
Strip movable slider is moved relative to rack, and rack can drive thread mold insert core pulling, and second step, male template band movable slider is with respect to inclined guide pillar
Mobile, inclined guide pillar band movable slider exits, and realizes automatic demoulding functions.
Preferably, referring to Fig. 6, the restricted caster and the public affairs are connected between the caster and the male template
Template molds several pulling plates 12 of distance.In this way, opening stroke can be controlled by several pulling plates, make rack will not be out of through-hole
It exits completely.
Preferably, it is formed with sliding block notch 13 close to the position of docking referring to Fig. 7, the caster and the male template,
Blend stop 14 is installed, the sliding block slides other direction stop in dropout direction and is set to two on the opposite both sides of the sliding block notch
Between a blend stop.In this way, by the way that blend stop is arranged, sliding block both sides can be limited, make it that can only be moved in core pulling direction
It is dynamic, and rack guide pad can be integrally formed with a blend stop.
Preferably, referring to Fig. 7, mold insert 15, institute are fixed in the core pulling that the corresponding thread mold insert is formed on the male die core
It states core pulling fixation mold insert and is formed with limit hole 1501, the sliding of other direction stop core pulling directions of the thread mold insert is set to the limit
In the hole of position.In this way, when core pulling stroke is larger, mold insert is fixed in logical core pulling can limit thread mold insert in the movement of core pulling direction, keep away
Exempt from core pulling offset and destroys plastic product.
Preferably, the mother module core and the male die core surround the plastic product being buckled to thread for be molded four
Four cavities, two are one group in four cavities, back-to-back arrangement.In this way, can injection mold each side
Two thread side core-pulling automatic demoulding structures of arrangement, for realizing the thread core pulling simultaneously of four plastic products.
Above example is that the preferred embodiment of the utility model is described in detail with reference to attached drawing.The skill of this field
Art personnel are by carrying out above-described embodiment modification or change on various forms, but the feelings of the essence without departing substantially from the utility model
Under condition, all fall within the scope of the present invention.
Claims (7)
1. a kind of thread side core-pulling automatic demoulding structure, it is characterised in that：Including sliding block (1), thread mold insert (2), gear shaft
(3), spiral tooth socket (4), rack (5) and inclined guide pillar (6), the thread mold insert include body part (201), are located at the body part one
First threaded portion (202) at end, internal thread positioned at the body part other end for being molded plastic product the second screw thread
The fuse portion (204) in portion (203) and interior cave for being molded plastic product；The slot along core pulling direction is formed in the sliding block
(101) and the through-hole (102) along die sinking direction, the through-hole side are connected to the slot, and the gear shaft is turned by bearing (7)
Dynamic to be installed in the slot, the first threaded portion set is fixed in one end of the gear shaft, and the spiral tooth socket is installed on described
In slot, and connect with first threaded portion, one end of the inclined guide pillar be fixedly connected with one end of the rack or
Inclined guide pillar described in person is integrally formed with the rack, and the rack is inserted in the through-hole, and is engaged with the gear shaft, institute
It is the slope (103) coordinated with the inclined guide pillar to state through-hole one side wall.
2. thread side core-pulling automatic demoulding structure according to claim 1, it is characterised in that：Further include being installed in rear mold
Rack guide pad (8), the rack side have along die sinking direction guide groove (501), the rack guide pad pass through institute
Sliding block is stated, and is inserted into the guide groove, rack is limited and is moved along die sinking direction relative to the sliding block.
3. a kind of injection mold, it is characterised in that：Including mother module core, male die core (9), caster (10), male template (11) and power
Profit requires the thread side core-pulling automatic demoulding structure described in 1 or 2, the mother module core to be set in the middle part of the caster, the male model
Benevolence is set in the middle part of the male template, and the mother module core is surrounded with the male die core for being molded the plastic product with thread back-off
Cavity, be formed with the via for avoiding the thread mold insert on the mother module core and the male die core side, the sliding block other
The sliding of direction stop core pulling direction makes the thread in the male template outside the male die core and the mother module core side
Mold insert is inserted in the via, and described rack one end is fixedly connected with the caster, and the other end passes through on the sliding block
Through-hole simultaneously passes through the male template.
4. injection mold according to claim 3, it is characterised in that：It is connected between the caster and the male template
Limit several pulling plates (12) of the caster and male template die sinking distance.
5. injection mold according to claim 3, it is characterised in that：The caster and the male template are close to docking
Position is formed with sliding block notch (13), and the sliding block notch is equipped with blend stop (14) on opposite both sides, and the sliding block is being threaded off
Other direction stop are slided between two blend stops in direction.
6. injection mold according to claim 3, it is characterised in that：The corresponding thread edge is formed on the male die core
Mold insert (15) is fixed in the core pulling of part, and the core pulling fixes mold insert and is formed with limit hole (1501), described other directions of thread mold insert
The sliding of stop core pulling direction is set in the limit hole.
7. injection mold according to claim 3, it is characterised in that：The mother module core and the male die core surround at
Four cavities of the plastic product of four, type with thread back-off, two are one group in four cavities, back-to-back arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122963.2U CN207889048U (en) | 2018-01-25 | 2018-01-25 | Thread side core-pulling automatic demoulding structure and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820122963.2U CN207889048U (en) | 2018-01-25 | 2018-01-25 | Thread side core-pulling automatic demoulding structure and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207889048U true CN207889048U (en) | 2018-09-21 |
Family
ID=63545877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820122963.2U Expired - Fee Related CN207889048U (en) | 2018-01-25 | 2018-01-25 | Thread side core-pulling automatic demoulding structure and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207889048U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327178A (en) * | 2018-01-25 | 2018-07-27 | 昆山金莓电子有限公司 | Thread side core-pulling automatic demoulding structure and injection mold |
| CN111300758A (en) * | 2020-03-20 | 2020-06-19 | 广东博智林智能制造有限公司 | Screw thread core-pulling mechanism and injection mold |
-
2018
- 2018-01-25 CN CN201820122963.2U patent/CN207889048U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108327178A (en) * | 2018-01-25 | 2018-07-27 | 昆山金莓电子有限公司 | Thread side core-pulling automatic demoulding structure and injection mold |
| CN111300758A (en) * | 2020-03-20 | 2020-06-19 | 广东博智林智能制造有限公司 | Screw thread core-pulling mechanism and injection mold |
| CN111300758B (en) * | 2020-03-20 | 2021-11-16 | 广东博智林机器人有限公司 | Screw thread core-pulling mechanism and injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 Termination date: 20210125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |