CN207535239U - Inner cavity has the injection mold of back-off structure product - Google Patents
Inner cavity has the injection mold of back-off structure product Download PDFInfo
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- CN207535239U CN207535239U CN201721579657.3U CN201721579657U CN207535239U CN 207535239 U CN207535239 U CN 207535239U CN 201721579657 U CN201721579657 U CN 201721579657U CN 207535239 U CN207535239 U CN 207535239U
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- sliding block
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Abstract
The utility model belongs to injection mold technology, providing a kind of inner cavity has the injection mold of back-off structure product, including the mold core with column structure, the mold core has the forming part for being used to form product cavity, including shovel base and multiple cores, the multiple core is fitted in respectively in axial direction on the outer wall of the shovel base；The outer wall in the core moulding portion is equipped with the protrusion for being used to form back-off, and when extracting the shovel base out axially from the distal end, the multiple core can radially be gathered to mold core axis direction.The utility model can avoid the problem that causing to be difficult to core pulling due to back-off structure card sets the protrusion means on mold core, and core pulling step is easy, easy to operate.
Description
Technical field
The utility model is related to injection mold technologies, and in particular to a kind of inner cavity has the injection of back-off structure product
Mold.
Background technology
Injection mold is the most common type mold in modern industrial production, can be used for being molded into for Various Complex structure
Type.For having the product of back-off structure in inner cavity, molding rear mold is difficult to core pulling or during core pulling easily to back-off
Structure generates damage.
For problem of the prior art and defect, it is desirable to provide a kind of inner cavity has the injection mold of back-off structure product,
Realize the smooth core pulling after formed product.
Utility model content
The utility model, which provides a kind of inner cavity, has the injection mold of back-off structure product, solves prior art products molding
The problem of core pulling is difficult afterwards.
The purpose of this utility model is to provide the injection mold that a kind of inner cavity has back-off structure product, including with column
The mold core of shape structure, the mold core have the forming part for being used to form product cavity, the multiple including shovel base and multiple cores
Core is fitted in respectively in axial direction on the outer wall of the shovel base；The outer wall in the core moulding portion is equipped with and is used to form down
The protrusion of button, when extracting the shovel base out axially from the distal end, the multiple core can radially be gathered to mold core axis direction.
Further, the outer wall that the shovel base is bonded with the core is equipped with strip, the core and the shovel base patch
The outer wall of conjunction is equipped with the card slot for engaging the strip；Or, the core is equipped with card with the outer wall that the shovel base is bonded
Item, the outer wall that the shovel base is bonded with the core are equipped with the card slot for engaging the strip；The strip and card slot
Extending direction is parallel to projection of the axis of the mold core on the fitting outer wall；The shovel base is bonded outer with the core
Wall is skew wall, and the shovel base distal dimension is more than proximate dimensional.
Further, the injection mold further includes the first sliding block, is equipped in first sliding block from distally proximally passing through
The first host cavity worn, first host cavity have distal openings and proximal openings；First sliding block further includes and distal end
Matched first cover board of hatch frame, first cover board, which is equipped with, to be allowed to shovel the first through hole that base passes through；The mold core from
Distal openings are inserted into first host cavity, and forming part is made to be pierced by proximal openings, and first cover plate lid is located at distal openings,
The distal end of the core is contradicted on the cover board.
Further, the injection mold further includes the second sliding block, and second sliding block is connect with the shovel base distal end.
Further, second sliding block is connect by connector with first sliding block, and second sliding block is to distally
Direction slides into when driving the protrusion to completely disengage back-off, and first sliding block is by connector with the second sliding block to far end party
To slip.
Further, the connector is screw；It is equipped in second sliding block from distally proximally perforative second logical
Hole, second through-hole wall are equipped with towards flange is extended internally, and make to be formed positioned at flange distal in second through-hole
Limiting through hole；The tip of the screw is fixed on after passing through second through-hole on first sliding block, and head is located at the limit
In the through-hole of position；When second sliding block distally slides into the protrusion disengaging product back-off, the flange is contradicted in institute
Screw head is stated, first sliding block is made to pass through screw and is distally slided with the second sliding block.
Further, the injection mold further includes the first spring, and second through-hole further includes near positioned at the flange
The receiving through-hole at end, first spring are set on screw, and in the receiving through-hole, both ends are contradicted respectively first
On sliding block and flange.
Further, the injection mold further includes two limited blocks being oppositely arranged, and first sliding block and second are slided
Block is fastened between two limited blocks, and is slided along the limited block extending direction.
Further, the limited block includes the fixture block of protrusion madial wall, and the fixture block can be towards limited block lateral wall direction
It shrinks；The fixture block is included proximally to distally setting gradually the first clamping part and the second clamping part, the second clamping part edge
The width of short transverse is more than the width of the first buckle, and the second buckle proximal face has ramp structure；Second sliding block
Side wall be equipped with for the card slot that accommodates the fixture block, the card slot includes the first card slot and the second card slot, first card
Slot runs through the second slider side wall proximal end, and the second card slot proximal end connects, and the second card slot with first card slot distal end
It is more than the width of the first card slot along the width of short transverse, the first card slot distal end is made to form step-like structure；Described first
Clamping part width is less than the first card slot width, and the second clamping part width is more than the first card slot width, and the fixture block is fastened on
When in card slot, the first clamping part proximal end is contradicted on the first sliding block, and second sliding block distally slides into raised disengaging
When product is buckled to, the step-like structure is contradicted on the ramp structure of second clamping part, and is applied to the fixture block and pressed
Power makes it be shunk towards limited block lateral wall direction.
Further, the second host cavity through outboard sidewalls is equipped in the limited block, second host cavity has
Outside wall opening and inside wall opening；The fixture block after outside wall opening is inserted into second host cavity, the first clamping part and
Second clamping part is pierced by inside wall opening；The limited block further includes to cover the second cover board for being located at lateral wall opening, institute
It states and second spring is additionally provided in the second host cavity, the second spring both ends are contradicted respectively on the fixture block and the second cover board.
The utility model can make core radially towards mould by setting the core to fit and shovel base when base is shoveled in extraction
Wire mandrel direction is moved, so that protrusion is detached from from back-off completely, will not cause core pulling due to protrusion is fastened in back-off
It is difficult；Pass through and the first sliding block and the second sliding block be set, it is only necessary to can be realized by single stepping by protrusion is detached from from back-off with
Mold core core pulling, simplifies operating procedure；By setting fixture block, the first sliding block card lifting can be provided as using, avoid being detached from protrusion
Core pulling is carried out to core before back-off.
Description of the drawings
Fig. 1 is the structure diagram that injecting products are treated in the utility model first embodiment.
Fig. 2 is the structure diagram of mold core in the utility model first embodiment.
Fig. 3 is the scheme of installation of mold core in the utility model first embodiment.
Fig. 4 is the vertical view of mold core in the utility model first embodiment.
Fig. 5 is schematic top plan view when extracting shovel base in the utility model first embodiment out outward.
Fig. 6 is the scheme of installation of the-the first slide block assembly of mold core in the utility model first embodiment.
Fig. 7 is the overhead sectional view of the-the first slide block assembly of mold core in the utility model first embodiment.
Fig. 8 is the structure diagram of injection mold in the utility model first embodiment.
Fig. 9 is the overhead sectional view of injection mold in the utility model first embodiment.
Figure 10 is the overhead sectional view of injection mold core pulling process in the utility model first embodiment.
Figure 11 is the partial enlarged view of location A in Figure 10.
Figure 12 is the structure diagram of limited block in the utility model second embodiment.
Figure 13 is the partial enlarged view of B location in Figure 12.
Figure 14 is the structure diagram of dispensing mould in the middle part of the utility model second embodiment.
Figure 15 is the partial enlarged view of location of C in Figure 14.
Figure 16 is the overhead sectional view of injection mold in the utility model second embodiment.
Figure 17 is the overhead sectional view during injection mold core pulling in the utility model second embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Mode, the present invention is further described in detail.
In this specification, it is proximal end to define each component close to one end of injecting products, and one end far from injecting products is remote
End, product core pulling direction are distal direction.It should be noted that this specification is for carrying out product the core pulling of horizontal direction
It illustrates, which does not play restriction effect to the orientation of the utility model.
The utility model first embodiment, which provides a kind of inner cavity, has the injection mold of back-off structure product, the present embodiment
The structure of middle product 10 is as shown in Figure 1, the product 10 has an inner cavity 101, and there are two the back-offs being oppositely arranged in inner cavity 101
102。
Referring to figs. 2 to Fig. 5, the injection mold includes the mold core 11 with column structure, and the mold core 11, which has, to be used for
The forming part 110 of product cavity is formed, is pasted respectively in axial direction including shovel base 111 and multiple cores 112, the multiple core 112
It closes on the outer wall of the shovel base 111；The outer wall of 112 forming part of core, which is equipped with, is used to form the convex of back-off 102
1121 are played, when extracting the shovel base 111 out axially from the distal end, the multiple core 112 can be radially to 11 axis direction of mold core
Gather.
In the present embodiment, the core 112 is 2, is oppositely arranged on the outer wall of the shovel base 111, shovels base 111
After being bonded with core 112, the inner cavity 101 of product 10 is used to form positioned at the outer wall of forming part 110；When the injection for completing product 10
After molding, when extracting the shovel base 111 out axially from the distal end, form notch in forming part 110,2 cores 112 can radially to
11 axis direction of mold core is gathered so that and the radial dimension of forming part 110 reduces, and protrusion 1121 is detached from from back-off 102 completely, this
When extract core 112 out axially from the distal end, core pulling will not be caused difficult due to protrusion 1121 is stuck in back-off 102.
Further, the fitting wall 1111 of the shovel base 111 is equipped with strip/card slot, on the fitting wall of the core 112
The shovel base 111 is parallel to equipped with the extending direction with the matched card slot/strip of the strip/card slot, the strip/card slot
Axis it is described fitting wall 1111 on projection；The fitting wall of the shovel base 111 refers to shovel what base 111 was bonded with core 112
Side wall, the fitting wall of the core 112 refer to the side wall that core 112 is bonded with shoveling base 111.This programme enables to shovel base and type
Core connects more stable during mold core is formed；In addition, during base/core is shoveled in extraction, the card column/notch
Guiding role can be played, prevents from shifting during core pulling.
Further, with reference to figure 4, Fig. 5, the fitting wall of the shovel base 111 is skew wall, and the shovel base distal dimension is more than near
Hold size.This programme cause extraction shovel base during, under the snap-in function of strip and card slot, the core gradually radially towards
Axis direction is gathered, so that mold core size reduces, convenient for core core pulling.
Further, with reference to figure 6, Fig. 7, the injection mold further includes the first sliding block 12, is set in first sliding block 12
Have from distally proximally perforative first host cavity 121, first host cavity 121 have distal openings 1211 and proximal openings
1212；First sliding block 12 further includes and matched first cover board 122 of 1211 structure of distal openings, first cover board
122 are equipped with the first through hole 1221 that shovel base 111 is allowed to pass through；The mold core is inserted into the first host cavity from distal openings 1211
After 121, forming part 110 is pierced by proximal openings 1212；After the lid of first cover board 122 is located in distal openings 1211, the type
The distal end of core 112 is contradicted on the cover board 122, and the shovel base 111 can be extracted out out of described first through hole 1221.This programme leads to
Cross the first sliding block of setting so that the step of carrying out core core pulling is simpler；The core pulling step of this programme is as follows：At first through hole
Extraction shovel base；Core is moved to the raised back-off for completely disengaging product in host cavity radially towards mold core axis direction；Xiang Yuan
Extreme direction moves the first sliding block, drives core core pulling.
It should be noted that in the present embodiment, the mold core is pyramidal structure, when the forming part of mold core is pierced by host cavity
Afterwards, forming part distal end is fastened at host cavity proximal openings；First cover board of the present embodiment is to be fixed by screws in the first cunning
On block.
Further, with reference to figure 8 to Figure 10, the injection mold further includes the second cunning of 111 distal end of the connection shovel base
Block 13, second sliding block 13 are used to extract the shovel base out.
Further, second sliding block 13 is connect by connector with the first sliding block 12, and second sliding block 13 is to remote
Extreme direction slip, until when protrusion is detached from product back-off, first sliding block 12 is by connector with the second sliding block 13 to distally
It slides in direction.This programme can only pass through the slip for controlling the second sliding block, you can realize core movement radially and in an axial direction
Core pulling simplifies core pulling operating procedure.
It should be noted that the connector can be there are many form, as long as can realize that the second sliding block slides certain distance
After can drive the first sliding block move.For example, the first sliding block and the second sliding block can be connected by connecting line, the second sliding block is slided
Before dynamic, the connecting line is in relaxed state；It is fallen when the second sliding block drives shovel basal orientation distal direction to slide into protrusion disengaging product
During button；Connecting line is tightened, and the second sliding block drives the first sliding block distally to slide, and then drives the outside core pulling of core.
In the present embodiment, with reference to figure 10, Figure 11, the connector is screw 14；It is equipped in second sliding block 13 from remote
Proximally perforative second through-hole, second through-hole wall are equipped with towards flange 131 is extended internally at end, make described second to lead to
The limiting through hole 132 positioned at 131 distal end of flange is formed in hole；The tip of the screw 14 is fixed on after passing through second through-hole
On first sliding block 12, head is located in the limiting through hole 132；Second sliding block 13 distally slides into the protrusion
When being detached from product back-off, the flange 131 is contradicted on 14 head of screw, makes first sliding block 12 by screw 14 with the
Two sliding blocks 13 distally slide.
Further, the injection mold further includes the first spring 15, and second through-hole further includes near positioned at flange 131
The receiving through-hole 133 at end, first spring 15 are set on screw 14, and in the receiving through-hole 133, both ends point
It does not contradict on the first sliding block 12 and flange 131.In the present solution, the elastic force that the first spring can generate the first sliding block so that
Before protrusion is detached from product back-off, the first sliding block is avoided because inertia is distally slided with the second sliding block.
Further, the injection mold further includes pull rod 16, and the pull rod 16 connects with second sliding block/shovel base distal end
It connects.By pulling pull rod, you can control core pulling step.
Further, the injection mold further includes the sliding rail for limiting 13 activity of the first sliding block 12 and the second sliding block.
By setting sliding rail, can to the slip of the first sliding block and the second sliding block rise position-limiting action, so as to avoid the first sliding block or
Second sliding block is displaced in sliding process.
, can be there are many form for the structure of sliding rail, in the present embodiment, the sliding rail includes two be oppositely arranged limits
Position block 17, first sliding block and the second sliding block are fastened between two limited blocks 17, are slided along the extending direction of limited block 17.
Referring to figs 12 to Figure 17, the utility model second embodiment, which provides a kind of inner cavity, has the note of back-off structure product
Mould, it should be noted that in the present embodiment, the madial wall of the limited block refers to that limited block and the first sliding block and second are slided
The side wall of block contact, the lateral wall of limited block refer to the side wall opposite with madial wall；Height is relative to the shape between limited block
Into orbit plane be horizontal plane height.
Difference lies in the limited block 27 includes the fixture block of protrusion madial wall, described for the present embodiment and first embodiment
Fixture block can be shunk towards 27 lateral wall direction of limited block；The fixture block 271 is included proximally to distally setting gradually the first clamping part
2711 and second clamping part 2712, the width of second clamping part 2712 along short transverse be more than the width of the first buckle 2711
Degree, and the second 2712 proximal faces of buckle have ramp structure；The side wall of second sliding block 23 is equipped with described for accommodating
The card slot 231 of fixture block 271, the card slot 231 include the first card slot 2311 and the second card slot 2312, and first card slot 2311 passes through
The second slider side wall proximal end is worn, 2312 proximal end of the second card slot distally connects, and second with first card slot 2311
The width of card slot 2312 along short transverse is more than the width of the first card slot 2311, and first card slot 2311 is made distally to form step
Shape structure 2313；First clamping part, 2711 width is less than 2311 width of the first card slot, 2712 width of the second clamping part
More than 2311 width of the first card slot, when the fixture block 271 is fastened in card slot 231,2711 proximal end of the first clamping part contradicts
On the first sliding block, when second sliding block 23 distally slides into protrusion disengaging product back-off, the step-like structure
2313 contradict on the ramp structure of second clamping part 2712, and make the fixture block 271 to the fixture block 271 application pressure
It is shunk to 27 lateral wall direction of limited block.The fixture block of this programme can be used for card to set the first sliding block, avoid because of shovel base and core package
It wraps up in too tightly, causes core that the first sliding block is driven to be slided with shovel base；When the second sliding block slides into setting position, pass through the receipts of fixture block
Contracting, can easily cancel and the card of the first sliding block is provided as using.
Further, the second host cavity through outboard sidewalls, the second host cavity tool are equipped in the limited block 27
There are outside wall opening and inside wall opening；The fixture block 271 is after outside wall opening is inserted into second host cavity, the first buckle
2711 and second clamping part 2712 of portion is pierced by outside the wall opening of inside；The limited block 27 further includes to be located at lateral wall and opens for covering
The second cover board 272 at mouthful is additionally provided with second spring 273 in second host cavity, and 273 both ends of second spring are supported respectively
It touches on 271 and second cover board 272 of fixture block.In the present solution, applying pressure to ramp structure by step-like structure, make institute
Second spring compression is stated, fixture block is contracted in the second host cavity, you can cancels and the card of the first sliding block is provided as using.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
It is new to should be included in this practicality for all any modification, equivalent and improvement made within the spirit and principles of the utility model etc.
Within the protection domain of type.
Claims (10)
1. a kind of inner cavity has the injection mold of back-off structure product, which is characterized in that including the mold core with column structure, institute
Stating mold core has the forming part for being used to form product cavity, and including shovel base and multiple cores, the multiple core is respectively in axial direction
It is fitted on the outer wall of the shovel base；The outer wall in the core moulding portion is equipped with the protrusion for being used to form back-off, along axis
To from when distally extracting the shovel base out, the multiple core can radially be gathered to mold core axis direction.
2. inner cavity according to claim 1 have back-off structure product injection mold, which is characterized in that it is described shovel base with
The outer wall of the core fitting is equipped with strip, and the core is equipped with to engage the card with the outer wall that the shovel base is bonded
The card slot of item；Or, the core is equipped with strip with the outer wall that the shovel base is bonded, the shovel base is bonded outer with the core
Wall is equipped with the card slot for engaging the strip；The axis that the extending direction of the strip and card slot is parallel to the mold core exists
Projection on the fitting outer wall；The outer wall that the shovel base is bonded with the core is skew wall, and the shovel base distal dimension is more than
Proximate dimensional.
3. inner cavity according to claim 2 has the injection mold of back-off structure product, which is characterized in that the injection mould
Tool further includes the first sliding block, is equipped in first sliding block from distally proximally perforative first host cavity, first receiving
Chamber has distal openings and proximal openings；First sliding block further includes and matched first cover board of distal openings structure, institute
Stating the first cover board and being equipped with allows to shovel the first through hole that base passes through；The mold core is inserted into first host cavity from distal openings,
Forming part is made to be pierced by proximal openings, after first cover plate lid is located in distal openings, the distal end of the core is contradicted described
On cover board.
4. inner cavity according to claim 3 has the injection mold of back-off structure product, which is characterized in that the injection mould
Tool further includes the second sliding block, and second sliding block is connect with the shovel base distal end.
5. inner cavity according to claim 4 has the injection mold of back-off structure product, which is characterized in that described second slides
Block is connect by connector with first sliding block, and second sliding block, which distally slides into, drives the protrusion completely de-
During from back-off, first sliding block is distally slided by connector with the second sliding block.
6. inner cavity according to claim 5 has the injection mold of back-off structure product, which is characterized in that the connector
For screw；It is equipped in second sliding block from distally proximally perforative second through-hole, second through-hole wall are equipped with court
Flange is extended internally, makes to form the limiting through hole positioned at flange distal in second through-hole；The tip of the screw passes through
It is fixed on after second through-hole on first sliding block, head is located in the limiting through hole；Second sliding block is to distally
When direction slides into the protrusion disengaging product back-off, the flange is contradicted in the screw head, leads to first sliding block
Screw is crossed distally to slide with the second sliding block.
7. inner cavity according to claim 6 has the injection mold of back-off structure product, which is characterized in that the injection mould
Tool further includes the first spring, and second through-hole further includes the receiving through-hole positioned at the flange proximal end, first spring pocket
It is located on screw, and in the receiving through-hole, both ends are contradicted respectively on the first sliding block and flange.
8. inner cavity according to claim 7 has the injection mold of back-off structure product, which is characterized in that the injection mould
Tool further includes two limited blocks being oppositely arranged, and first sliding block and the second sliding block are fastened between two limited blocks, and edge
The limited block extending direction slides.
9. inner cavity according to claim 8 has the injection mold of back-off structure product, which is characterized in that the limited block
Fixture block including protruding madial wall, the fixture block can be shunk towards limited block lateral wall direction；The fixture block is included proximally to remote
End sets gradually the first clamping part and the second clamping part, and the width of second clamping part along short transverse is more than the first buckle
Width, and the second buckle proximal face has ramp structure；The side wall of second sliding block is equipped with to accommodate the fixture block
Card slot, the card slot include the first card slot and the second card slot, first card slot run through the second slider side wall proximal end, institute
It states the second card slot proximal end to connect with first card slot distal end, and the second card slot is more than the first card slot along the width of short transverse
Width makes the first card slot distal end form step-like structure；The first clamping part width is less than the first card slot width, described
Second clamping part width is more than the first card slot width, and when the fixture block is fastened in card slot, the first clamping part proximal end is contradicted the
On one sliding block, when second sliding block distally slides into protrusion disengaging product back-off, the step-like structure, which contradicts, to exist
On the ramp structure of second clamping part, and applying pressure to the fixture block makes it be shunk towards limited block lateral wall direction.
10. inner cavity according to claim 9 has the injection mold of back-off structure product, which is characterized in that the limiting
The second host cavity through outboard sidewalls is equipped in block, second host cavity has outside wall opening and inside wall opening；Institute
Fixture block is stated after outside wall opening is inserted into second host cavity, the first clamping part and the second clamping part are pierced by inside wall opening
Outside；The limited block further includes to be located at the second cover board of lateral wall opening for covering, and the is additionally provided in second host cavity
Two springs, the second spring both ends are contradicted respectively on the fixture block and the second cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721579657.3U CN207535239U (en) | 2017-11-22 | 2017-11-22 | Inner cavity has the injection mold of back-off structure product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721579657.3U CN207535239U (en) | 2017-11-22 | 2017-11-22 | Inner cavity has the injection mold of back-off structure product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207535239U true CN207535239U (en) | 2018-06-26 |
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ID=62614593
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721579657.3U Active CN207535239U (en) | 2017-11-22 | 2017-11-22 | Inner cavity has the injection mold of back-off structure product |
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| Country | Link |
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| CN (1) | CN207535239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808135A (en) * | 2017-11-22 | 2019-05-28 | 深圳市美好创亿医疗科技有限公司 | Inner cavity has the injection mold of back-off structure product |
-
2017
- 2017-11-22 CN CN201721579657.3U patent/CN207535239U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808135A (en) * | 2017-11-22 | 2019-05-28 | 深圳市美好创亿医疗科技有限公司 | Inner cavity has the injection mold of back-off structure product |
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Address after: Longgang District of Shenzhen City, Guangdong province 518116 Longgang Street Community 6 new road bridge Baolong Baolong Industrial Park building B building 1-3 floor Patentee after: Shenzhen meimeimeichuangyi Medical Technology Co., Ltd Address before: Longgang District of Shenzhen City, Guangdong province 518116 Longgang Street Community 6 new road bridge Baolong Baolong Industrial Park building B building 1-3 floor Patentee before: MEHOW INNOVATIVE Ltd. |