CN204914475U - A mechanism and injection mold for moulding barb break away from xie ding - Google Patents
A mechanism and injection mold for moulding barb break away from xie ding Download PDFInfo
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- CN204914475U CN204914475U CN201520558479.0U CN201520558479U CN204914475U CN 204914475 U CN204914475 U CN 204914475U CN 201520558479 U CN201520558479 U CN 201520558479U CN 204914475 U CN204914475 U CN 204914475U
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- oblique top
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- guide groove
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- plastic
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Abstract
The application discloses a mechanism and injection mold for moulding barb break away from xie ding, this mechanism includes mould benevolence, push up to one side and the dog, be provided with oblique guide slot and dog guide slot in this mould benevolence respectively, should push up the guide slot to one side is the slant setting, the dog guide slot is then be vertical setting, this dog is installed at oblique top, it is along with when pushing up the up -and -down motion to one side, still top level motion relatively to one side, consequently when pushing up in pushing up the guide slot to one side the slant campaign to one side, what in fact the dog was done is the ascending motion of vertical side, both direction of motions are different, thereby the distance that makes the dog and push up on the horizontal direction to one side changes, and then can promote the back -off and break away from xie ding. This kind of mechanism structure is simple, and easy the realization does not occupy too big space moreover, applies to very easily on the injection mold of on the miscellaneous goods (like cell -phone class product).
Description
Technical field
The application relates to injection mold field, particularly relates to the mechanism that a kind of barb for plastic departs from oblique top.
Background technology
Injection mold is generally made up of profiled part, running gate system, temperature control system, gas extraction system, matched moulds guiding mechanism, mould emptier and support component etc.Taken out from mould by shaping plastic after cooling curing, optimal situation is after mold open, plastic by self gravitation from Automatic-falling die cavity or core.And in fact, because the microcosmic on plastic surface is concavo-convex, the existence of adhesive force and internal stress, special method must be used by its demoulding, such as, when the demoulding, could usually to adopt the oblique top demoulding,
But for the plastic having side concavo-convex, namely have the plastic of back-off, because the back-off place complex structure of plastic, area are large, when being easy to cause the plastic demoulding, back-off glues the problem of oblique top.For preventing this kind of plastic from occurring that back-off glues the phenomenon of oblique top when the demoulding, normally adopt and arrange thimble in oblique top, the oblique top demoulding assisted by thimble.
Please refer to Fig. 1, Figure 1 shows that the part-structure signal of existing injection mold.Wherein, plastic a1 side is shaping by die a2 and oblique top a3, oblique top a3 is equipped with thimble a8 and spring a9, and the back-off a4 of plastic a1 againsts the sidewall of oblique top a3 and thimble a8.Oblique top a3 and die a2 is slidably connected, and die a2 is provided with groove a6 in the glide direction of oblique top a3.Spring a9 is enclosed within thimble a8, and spring a9 one end is connected on oblique top a3, and the other end is connected on the boss of thimble a8, and its restoring force makes thimble afterbody a11 prop up die a2.
During the demoulding, oblique top a3 drives thimble a8 upward to moving relative to die a2, now the afterbody a11 of thimble a8 upwards skids off in groove a6, and because the sidewall of groove a6 is for arrange vertically upward, therefore in groove a6, this section of thimble a8 is actual is upward vertical movement.Thimble a8 is different from the direction of motion of oblique top a2, finally causes thimble a8 to produce a level motion to the right relative to oblique top a2, and the promoted back-off a4 of this level motion to the right departs from oblique top a3.
After thimble a8 moves upward and skids off groove, oblique top a2 continues to move along former direction, and thimble a8 and the oblique top a2 direction of motion are consistent, and finally depart from back-off in the horizontal direction.
But the complex structure of existing this plastic back-off and oblique top releasing mechanism, takes up room large, is comparatively difficult to realize time on the injection mold applying on some miscellaneous goods (as cell phone type product).
Summary of the invention
The technical problem that the application will solve is for the deficiencies in the prior art, the mechanism providing a kind of barb for plastic to depart from oblique top and a kind of injection mold.
The application provide a kind of barb for plastic to depart from the mechanism of oblique top, comprise die and oblique top, described die has the oblique top guide groove of oblique setting, described oblique top is placed in oblique top guide groove movably, when the plastic demoulding, oblique top can move relative to die and eject plastic, also comprise at least one for propping up the block of plastic back-off, described block is arranged in oblique top, described oblique top is carried out spacing to block in the vertical direction, move upward to drive block, described block can move relative to oblique top in the horizontal direction, the cell wall of described oblique top guide groove has the block guide groove vertically arranged, described block both sides protrude from oblique top and are connected in block guide groove, when oblique top carries out the demoulding along the oblique movement of oblique top guide groove, described block vertically moves under the guiding of block guide groove.
Depart from the further improvement of the mechanism of oblique top as the described barb for plastic, described oblique top is provided with the installing hole mated with dog height, and described block is loaded in described installing hole.
Depart from the further improvement of the mechanism of oblique top as the described barb for plastic, described four blocks are arranged side by side in oblique top.
A kind of injection mold that the application provides, comprises the mechanism departing from oblique top described in above-mentioned any embodiment for the barb of plastic.
The beneficial effect of the application is:
The mechanism that the application provides comprises die, oblique top and block, this die is respectively arranged with oblique top guide groove and block guide groove, this oblique top guide groove is oblique setting, block guide groove is then vertically arrange, this block is arranged in oblique top, it is while moving up and down with oblique top, also can oblique top horizontal movement relatively, therefore when oblique top is in oblique top guide groove during oblique movement, the motion that what in fact block did is on vertical direction, both directions of motion are different, thus block and oblique top distance is in the horizontal direction changed, and then can promote back-off disengaging oblique top.This mechanism structure is simple, easily realizes, and unobstructive, is easy to apply on the injection mold of (as cell phone type product) on miscellaneous goods.
Accompanying drawing explanation
Fig. 1 is existing a kind of mechanism structure schematic diagram departing from oblique top for plastic back-off;
Fig. 2 is the mechanism a kind of embodiment schematic diagram of the application for the barb disengaging oblique top of plastic;
Fig. 3 is the structural representation of middle die embodiment illustrated in fig. 2;
Fig. 4 is part A enlarged diagram in Fig. 3;
Fig. 5 is that middle die embodiment illustrated in fig. 2 coordinates schematic diagram with block;
Fig. 6 is the schematic diagram that middle oblique top embodiment illustrated in fig. 2 is contained on die;
Fig. 7 is that middle block embodiment illustrated in fig. 2 coordinates schematic diagram with oblique top;
Fig. 8 is that middle block embodiment illustrated in fig. 2 coordinates side schematic view with oblique top;
Fig. 9 is middle block embodiment illustrated in fig. 2, oblique top and die cooperation place sectional view.
Detailed description of the invention
By reference to the accompanying drawings the present invention is described in further detail below by detailed description of the invention.The application can realize with multiple different form, is not limited to the embodiment described by the present embodiment.There is provided the object of following detailed description of the invention to be convenient to the clearer understanding thoroughly of the application's disclosure, wherein the words of the indicating position such as upper and lower, left and right is only for shown structure position in respective figure.
But those skilled in the art may recognize that one or more detail describes and can be omitted, or can also adopt other method, assembly or material.In some instances, some embodiments do not describe or are not described later in detail.
In addition, feature described herein, enforcement or feature can also combine in one or more embodiments in any suitable manner.
Embodiment one
The present embodiment one provides a kind of mechanism departing from oblique top for plastic back-off.
Please refer to 2-9, mechanism comprises die 1, oblique top 2 and block 3.
Shaping all for plastic of this die 1, oblique top 2 and block 3, as shown in figs. 2 and 9, structure shown in Fig. 2 comprises mobile phone shell 4 (the present embodiment is all described using mobile phone shell 4 as plastic), it should be noted that Fig. 2 illustrates that mobile phone shell 4 is to better mechanism is described, this mobile phone shell 4 is not the part of mechanism.Wherein, mobile phone shell 4 back-off 41 primarily of oblique top 2 and block 3 part shaping.
Please refer to Fig. 3 and 4, this die 1 has the oblique top guide groove 11 of oblique setting, and the cell wall of oblique top guide groove 11 has the block guide groove 12 vertically arranged, in the present embodiment, block 3 is four, nature block guide groove 12 is also four, because transillumination can only see three block guide grooves 12 in figure, therefore only indicate three here.In other embodiments, block 3 and block guide groove 12 may be selected to be one and more than.
Please refer to Fig. 6, this oblique top 2 is strip-shaped object, and it is arranged in oblique top guide groove 11, and because oblique top guide groove 11 is oblique setting, therefore oblique top 2 can along oblique top guide groove 11 die 1 oblique movement relatively.
Please refer to Fig. 7, this block 3 is arranged in oblique top 2.This oblique top 2 pairs of block 3 in the vertical directions carry out spacing, and to drive block 3 to move upward, but block 3 can move relative to oblique top 2 in the horizontal direction.The present embodiment is this spacing in order to realize, oblique top 2 arranges installing hole 21a, 21b, 21c, the 21d highly matched with block 3, the height that refers to installing hole and block 3 is highly roughly equal or slightly larger than block 3 height of matching mentioned here, block 3 is installed to after in this installing hole, its above-below direction is not movable, but horizontal direction is mobilizable.
The present embodiment block 3 is four 3a, 3b, 3c, 3d, and it is disposed side by side in oblique top 2.Block 3a, 3d of being positioned at both sides can be thinner, and it is thicker to be positioned at middle two pieces of blocks 3b, 3c.Wherein the width of block 3 mainly considers design according to the width of oblique top 2 and intensity.
Please refer to Fig. 5,8,9, after block 3 is installed to oblique top 2, the both sides of block 3 protrude from oblique top 2 and arrange.Two of block 3 are connected in block guide groove 12.This block guide groove 12 guide stop block 3 vertical direction moves.
Please continue to refer to Fig. 9, during the demoulding, oblique top 2 can move and eject plastic relative to die 1 is oblique, and moving direction is as shown in arrow in Fig. 92.Wherein oblique top 2 moves up to carry out the technology that the demoulding belongs to comparative maturity in injection mold, therefore omits the description to it here.
Block 3 can be driven while oblique top 2 moves up to move up, and when under the guiding at block guide groove 12, block 3 movement locus and oblique top 2 are also inconsistent, and it vertically moves, as shown in arrow in Fig. 93.Inconsistent with the direction of motion of block 3 just because of oblique top 2, therefore in the process moved up, block 3 relatively oblique top 2 produces a level relative motion to the right, and this motion causes block 3 in the horizontal direction gradually away from oblique top 2.Prop up plastic back-off 41 because block 3 is actually, therefore when oblique top 2 moves right block 3 relatively, plastic back-off 41 can be made to depart from oblique top 2.
This mechanism structure shown in the present embodiment is simple, easily realizes, and unobstructive, is easy to apply on the injection mold of (as cell phone type product) on miscellaneous goods.
Embodiment two
The present embodiment two provides a kind of injection mold, and this injection mold comprises the mechanism as described in embodiment one, can realize plastic back-off 41 and depart from oblique top 2 in knockout course, the outstanding plastic parts moulding be applicable to shaping miscellaneous goods (as cell phone type product).
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made.
Claims (6)
1. the mechanism of the disengaging of the barb for a plastic oblique top, comprise die and oblique top, described die has the oblique top guide groove of oblique setting, described oblique top is placed in oblique top guide groove movably, when the plastic demoulding, oblique top can move relative to die and eject plastic, it is characterized in that, also comprise at least one for propping up the block of plastic back-off, described block is arranged in oblique top, described oblique top is carried out spacing to block in the vertical direction, move upward to drive block, described block can move relative to oblique top in the horizontal direction, the cell wall of described oblique top guide groove has the block guide groove vertically arranged, described block both sides protrude from oblique top and are connected in block guide groove, when oblique top carries out the demoulding along the oblique movement of oblique top guide groove, described block vertically moves under the guiding of block guide groove.
2. mechanism as claimed in claim 1, it is characterized in that, described oblique top is provided with the installing hole mated with dog height, and described block is loaded in described installing hole.
3. mechanism as claimed in claim 2, it is characterized in that, described block is four, and described four blocks are arranged side by side in oblique top.
4. an injection mold, is characterized in that, comprises as claimed in claim 1 for the mechanism of the barb disengaging oblique top of plastic.
5. injection mold as claimed in claim 4, it is characterized in that, described oblique top is provided with the installing hole mated with dog height, and described block is loaded in described installing hole.
6. injection mold as claimed in claim 5, it is characterized in that, described block is four, and described four blocks are arranged side by side in oblique top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558479.0U CN204914475U (en) | 2015-07-29 | 2015-07-29 | A mechanism and injection mold for moulding barb break away from xie ding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520558479.0U CN204914475U (en) | 2015-07-29 | 2015-07-29 | A mechanism and injection mold for moulding barb break away from xie ding |
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| CN204914475U true CN204914475U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520558479.0U Expired - Fee Related CN204914475U (en) | 2015-07-29 | 2015-07-29 | A mechanism and injection mold for moulding barb break away from xie ding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738682A (en) * | 2016-12-23 | 2017-05-31 | 广东长盈精密技术有限公司 | Back-off knock-out gear and mould |
| CN110281478A (en) * | 2019-07-31 | 2019-09-27 | 宁波方正汽车模具股份有限公司 | Threshold ornamental strip ejecting mechanism |
-
2015
- 2015-07-29 CN CN201520558479.0U patent/CN204914475U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738682A (en) * | 2016-12-23 | 2017-05-31 | 广东长盈精密技术有限公司 | Back-off knock-out gear and mould |
| CN110281478A (en) * | 2019-07-31 | 2019-09-27 | 宁波方正汽车模具股份有限公司 | Threshold ornamental strip ejecting mechanism |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180729 |