CN104260279B - A kind of mould for preventing core rod distending - Google Patents
A kind of mould for preventing core rod distending Download PDFInfo
- Publication number
- CN104260279B CN104260279B CN201410371550.4A CN201410371550A CN104260279B CN 104260279 B CN104260279 B CN 104260279B CN 201410371550 A CN201410371550 A CN 201410371550A CN 104260279 B CN104260279 B CN 104260279B
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- CN
- China
- Prior art keywords
- core rod
- square groove
- bar lock
- distending
- mould
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention discloses a kind of mould for preventing core rod distending, wherein, including：Preceding core rod and the rear core rod matched with the preceding core rod.Four sides up and down of the die cavity outer wall of the preceding core rod offer at least one first square groove, the first square groove collar extension is big, inner mouth is small, the correspondence of four sides up and down of the core outer wall of core rod offers at least one second square groove in the rear, and first square groove is fixed with corresponding second square groove by Bar lock.The invention can ensure that the core of the die cavity of preceding core rod and rear core rod accurate match at normal temperatures, while can also solve the problems, such as that die cavity easily occurs distending and can play and clamp down on and be accurately positioned under HTHP effect.
Description
Technical field
The present invention relates to mould structure field, more particularly to high temperature, high voltage precision injection mold.
Background technology
The core rod of its front mould of existing mould and rear mold under multiple HTHP effect, be susceptible to core rod distending and
The problem of dislocation, causes front and rear core rod to be accurately positioned the protection dress for not being prevented from core rod distending in the prior art
Put.Because core rod is the major part of shaped article, when current rear core rod is expanded under condition of different temperatures, the mould of front and rear mould
Core will be misplaced, and cause to be molded by product wall unevenness occur, and edge burr phenomenon, particularly high smooth product will reach to be exempted to mend
The requirement of oil, avoids pruning and repairing as far as possible.Wall unevenness influence assembling, burr problem not only influences attractive in appearance, when wiping machine
Easily damage finger.
Therefore, for drawbacks described above problem, this case provides a kind of new departure, mainly solves and improve steam mold injection matter
Amount.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of mould skill for preventing core rod distending
Art, it is intended to which solving the existing mould easy distending of its core rod causes product quality to be affected and influence asking for die life
Topic.
Technical scheme is as follows：
A kind of mould for preventing core rod distending, wherein, including：Preceding core rod and the rear mold matched with the preceding core rod
Core, four sides up and down of the die cavity outer wall of the preceding core rod offer at least one first square groove, first square groove
Collar extension is big, inner mouth is small, and the correspondence of four sides up and down of the core outer wall of core rod offers at least one second square groove in the rear,
First square groove is fixed with corresponding second square groove by Bar lock.
The mould of described prevented core rod distending, wherein, the shape of cross section of first square groove is rectangle, described
The vertical sectional shape of the first square groove is isosceles trapezoid.
The mould of described prevented core rod distending, wherein, the Bar lock is provided with the screw for fixing Bar lock
Nail, the screw nail hole on Bar lock is provided with least one for fixing bar shaped dead bolt through setting in second square groove
The screw nail hole of head.
The mould of described prevented core rod distending, wherein, the Bar lock is provided with the pin for acting Bar lock
Hole, through setting, be provided with least one in second square groove has been used to bar lock tongue the pin hole on Bar lock
Pin hole.
The mould of described prevented core rod distending, wherein, the shape of cross section of the bar shaped lock head is rectangle, described
The vertical sectional shape of bar shaped lock head is isosceles trapezoid.
The mould of described prevented core rod distending, wherein, the bottom and upper segment of the die cavity outer wall of the preceding core rod is opened up
There is 1 or 2 the first square groove.
The mould of described prevented core rod distending, wherein, the left side and the right of the die cavity outer wall of the preceding core rod open up
There is 1 or 2 the first square groove.
The mould of described prevented core rod distending, wherein, the root of the Bar lock is installed on outside the core of rear core rod
On wall groove.
The mould of described prevented core rod distending, wherein, the two of the head of the Bar lock faces directly and the first party
Shape groove is set for empty avoiding.
The mould of described prevented core rod distending, wherein, two inclined-planes and the first party of the head of the Bar lock
Shape groove is to be close to set.
Beneficial effect：The present invention opens up that collar extension is big, inner mouth is small by four sides up and down of the die cavity outer wall in preceding core rod
The first square groove, while the core outer wall in rear core rod opens up corresponding second square groove, first is inserted into by Bar lock
In square groove and the second square groove, so that ensure the die cavity of preceding core rod and the core accurate match at normal temperatures of rear core rod, while
Also can solve the problems, such as that die cavity easily occurs distending and can play and clamp down on and be accurately positioned under HTHP effect.
Brief description of the drawings
Fig. 1 is the structural representation of preceding core rod in a kind of mould for preventing core rod distending of the present invention；
Fig. 2 be in a kind of mould for preventing core rod distending of the present invention after core rod structural representation；
Fig. 3 is the first viewing angle constructions schematic diagram of Bar lock in a kind of mould for preventing core rod distending of the present invention；
Fig. 4 is the second viewing angle constructions schematic diagram of Bar lock in a kind of mould for preventing core rod distending of the present invention；
Fig. 5 is the 3rd viewing angle constructions schematic diagram of Bar lock in a kind of mould for preventing core rod distending of the present invention；
Fig. 6 is a kind of decomposition texture schematic diagram of mould one for preventing core rod distending of the present invention；
Fig. 7 is a kind of another decomposition texture schematic diagram of mould for preventing core rod distending of the present invention；
Fig. 8 is the fit structure schematic diagram of rear core rod and Bar lock in mould of the invention；
Fig. 9 is the A-A faces sectional view of structural representation shown in Fig. 8；
Figure 10 is the partial enlarged drawing of part B in Fig. 9.
Specific embodiment
The present invention provides a kind of mould for preventing core rod distending, to make the purpose of the present invention, technical scheme and effect more
Plus it is clear, clear and definite, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
With reference to shown in Fig. 1 and Fig. 2, a kind of mould for preventing core rod distending of the invention, it includes two large divisions：Front mould
Core 100 and matching rear core rod 200, are both provided with preceding core rod 100 and rear core rod 200：Die cavity 120 and core 220.
At least one first square groove is offered on four sides up and down of the outer wall of die cavity 120 of the preceding core rod 100
110, corresponding, four sides up and down of the outer wall of core 220 of core rod 200 offer at least one second square groove in the rear
210, the two square grooves pass through Bar lock 300（As shown in Figure 3）To be fixed, the shape of the first square groove 110 is collar extension
Greatly, inner mouth is small, and the shape of the second square groove 210 may be configured as the big structure as inner mouth of collar extension, can be configured as collar extension it is big,
In the small shape of mouth, such Bar lock two ends are able to be inserted into the first square groove 110 and corresponding second square groove 210
In.Inserted the core 220 of the die cavity 120 of the present invention preceding core rod 100 of guarantee and rear core rod 200 by Bar lock accurate match
Clamp down on and be accurately positioned.
The screw nail hole 211 for fixing the tongue of Bar lock 300 is additionally provided with second square groove 210 and is used for
Act the pin hole 212 of the tongue of Bar lock 300.
The first described square groove 110, its shape of cross section is rectangle, and its vertical sectional shape is isosceles trapezoid.It is i.e. whole
Individual first square groove 110 is used for inserting the head of Bar lock 300, and whole second square groove 210 is used for inserting Bar lock 300
Root, as shown in Figures 3 to 5, Bar lock 300 its head is also that shape of cross section is rectangle, and vertical sectional shape is isosceles trapezoid,
I.e. its root is big, and head is small, and this structure ensure that Bar lock 300 can be properly inserted to the first square groove 110 and second
In square groove 210, it is ensured that in the die cavity 120 and the accurate match at normal temperatures of core 220 of rear core rod 200 of preceding core rod 100, while
Also die cavity can be solved easily generation distending to occur under HTHP effect and can play and clamp down on and can be accurately positioned.
In the present embodiment, preceding core rod will be also fixed on mould bases, and guide pillar hole is also offered respectively in the corner of preceding mould bases, right
Answer, mould bases after also being installed on core rod in the rear, the corner of rear mould bases offers corresponding guide pillar respectively.This utilization mould bases
Upper guide post positioning only serves preliminary Correction of Orientation and acts on, and being accurately positioned for core rod, need to utilize die cavity, the outer side wall of core
Upper Bar lock as the aforementioned 300, positioning is clamped down on core rod square groove.
As shown in Figures 3 to 5, its head is that a trapezium structure, i.e. head are transversal to each visual angle schematic diagram of Bar lock 300
Face is rectangle, and head longitudinal section is isosceles trapezoid, i.e., at the four sides contacted with the first square groove（Four sides, up and down,
Before and after not including）In, wherein relative two sides（Left and right two sides in Fig. 4 visual angles）To face directly, relative two sides in addition（Fig. 4 is regarded
Upper and lower surface in angle）It is inclined-plane, when coordinating, two to face directly be empty avoiding state, i.e., be inserted into first party in the head of Bar lock 300
When in shape groove 110, there is certain interval with the first square groove 110, and two inclined-planes are then fitted close with the first square groove 110.Its
The cross section of head is small, and head is used for being inserted into the first square groove 110, and root is used for being inserted into the second square groove 210.
In the embodiment of the present invention, the square groove 110 of Bar lock 300 and first is in being inserted into groove in the form of prismatoid, so either
Core or die cavity, when it occurs plasticity change in size on any one direction up and down, by the Bar lock 300
Trapezium structure can clamp down on die cavity with core, to realize accurately symmetrical positioning.By the trapezium structure of the Bar lock 300,
When being positioned, positioning runout a to direction would not occur, so ensure that product by Bar lock of the invention 300
Assembling, and extend the mold use life-span.And this is core place of the invention, core rod exists before and after the present invention is solved in the past
Easy distending under HTHP effect and the problem that can not be accurately positioned, with prominent substantive distinguishing features and significant progressive.
The screw nail hole 310 for fixing Bar lock 300, the screw nail hole 310 are provided with the Bar lock 300
Through setting.Meanwhile, the Bar lock 300 is provided with the pin hole 320 for acting Bar lock 300, the pin hole 320
Through setting.Screw nail hole 310 on Bar lock 300 is settable two, and pin hole 320 then can be set one, and be arranged on spiral shell
In the middle of adjusting screw hole 310, it is arranged side by side, in an embodiment as illustrated in figure 3, screw nail hole 320 sets two, and pin hole 320 sets
One is put, and is arranged in the middle of screw nail hole 320.It is corresponding, screw nail hole 211 and pin hole 212 in the second square groove 200
It is also that according to above-mentioned rule setting, that is, two screw nail holes 211 and a pin hole 212 are set, pin hole 212 is arranged on screw
In the middle of nail 211.The root of the Bar lock 300 is installed on the groove of the outer wall of core 220 of rear core rod 200.
Certainly, the screw nail hole 310 and pin hole 320 on Bar lock 300 can be configured as other quantity, specifically can basis
Die size and technological requirement are set.For example open up 2 screw nail holes 310 and 2 pin holes 320.Screw nail hole 310 is all provided with
Put at the two ends of pin hole 320.
In addition, first square groove 110 and the core 220 of rear core rod 200 of the outer wall of die cavity 120 on preceding core rod 100
The quantity of the second square groove 210 of outer wall selects to open up quantity also dependent on die size size, such as square for first
For groove, 1 or 2 can be opened up on the left side of the outer wall of die cavity 120 of preceding core rod, 1 or 2 is opened up on the right, open up on top 1 or
2,1 or 2 is opened up following, but it is identical to need the right and left and upper and lower both sides to open up quantity, to ensure to be more uniformly stressed.
When being installed, the root of Bar lock 300 is arranged on the second party of the outer wall of core 220 of rear core rod 200 first
In shape groove 210, then the head of Bar lock 300 is arranged in the first square groove 110 of the outer wall of core cavity 120 of preceding core rod 100, such as schemed
Shown in 6 and Fig. 7, the two of the head of Bar lock 300 faces directly and is provided with clearance position, i.e., be not close-fitting with the connection of the first square groove 110, and
Two inclined-planes do not set clearance position.In die sinking, the tongue of Bar lock 300 leaves the first square groove of the outer wall of die cavity 120 of preceding core rod
110, in matched moulds, the tongue of Bar lock 300 is inserted into the first square groove 110.It is subject to HTHP effect outwards swollen in core rod
When opening, Bar lock 300 is locked by core rod with the first square groove 110 of the outer wall of core cavity 120 of preceding core rod 200, such as Fig. 9 to Figure 10 institutes
Show, it is ensured that core 220 is matched well with die cavity 120, similarly for the outer wall the right and left of core 220 in rear core rod 200
Second square groove 210 is also can be locked by core rod, it is ensured that core rod is played in distending to be clamped down on and can be accurately positioned, for front mould
First square groove 110 of the outer wall of 100 die cavity of core 120 is same.
In sum, by the die cavity outer wall in preceding core rod, four sides open up that collar extension is big, inner mouth is small to the present invention up and down
The first square groove, while four sides open up corresponding second square groove up and down in the core outer wall of rear core rod, by bar shaped
Lock be inserted into the first square groove and the second square groove so that ensure preceding core rod die cavity and rear core rod core it is accurate at normal temperatures
Really matching, while can also solve die cavity and distending easily occurring under HTHP effect and asking of clamping down on and can be accurately positioned can be played
Topic.
It should be appreciated that application of the invention is not limited to above-mentioned citing, and for those of ordinary skills, can
To be improved according to the above description or converted, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Shield scope.
Claims (6)
1. a kind of mould for preventing core rod distending, it is characterised in that including：Preceding core rod and after being matched with the preceding core rod
Core rod, four sides up and down of the die cavity outer wall of the preceding core rod offer at least one first square groove, and described first is square
Groove collar extension is big, inner mouth is small, and to offer at least one second square for the correspondence of four sides up and down of the core outer wall of core rod in the rear
Groove, first square groove is fixed with corresponding second square groove by Bar lock；
The shape of cross section of first square groove is rectangle, and the vertical sectional shape of first square groove is isosceles trapezoid；
The shape of cross section of the bar shaped lock head is rectangle, and the vertical sectional shape of the bar shaped lock head is isosceles trapezoid；
The root of Bar lock is big, head is small；
The collar extension of the second square groove big or collar extension as inner mouth is big, inner mouth is small；
First square groove is used for inserting the head of Bar lock, and the second square groove is used for inserting the root of Bar lock；
The two of the head of the Bar lock are faced directly with first square groove as empty avoiding is set；
Two inclined-planes of the head of the Bar lock are to be close to set with first square groove；
Bar lock and the first square groove be in being inserted into groove in the form of prismatoid, either core or die cavity, and it is upper and lower
When there is plasticity change in size on any one direction of left and right, can be by die cavity and core by the trapezium structure of the Bar lock
Clamp down on, to realize accurately symmetrical positioning.
2. the mould for preventing core rod distending according to claim 1, it is characterised in that the Bar lock be provided with for
The screw nail hole of fixed Bar lock, the screw nail hole on Bar lock is provided with least one through setting in second square groove
Screw nail hole for fixing bar lock tongue.
3. the mould for preventing core rod distending according to claim 1, it is characterised in that the Bar lock be provided with for
Act the pin hole of Bar lock, through setting, be provided with least one in second square groove is used for the pin hole on Bar lock
Act the pin hole of bar lock tongue.
4. the mould for preventing core rod distending according to claim 1, it is characterised in that the die cavity outer wall of the preceding core rod
Bottom and upper segment offer 1 or 2 the first square groove.
5. the mould for preventing core rod distending according to claim 1, it is characterised in that the die cavity outer wall of the preceding core rod
The left side and the right offer 1 or 2 the first square groove.
6. the mould for preventing core rod distending according to claim 1, it is characterised in that install the root of the Bar lock
In on the core unit with grooves in outer wall of rear core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371550.4A CN104260279B (en) | 2014-07-31 | 2014-07-31 | A kind of mould for preventing core rod distending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371550.4A CN104260279B (en) | 2014-07-31 | 2014-07-31 | A kind of mould for preventing core rod distending |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104260279A CN104260279A (en) | 2015-01-07 |
| CN104260279B true CN104260279B (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371550.4A Active CN104260279B (en) | 2014-07-31 | 2014-07-31 | A kind of mould for preventing core rod distending |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342760Y (en) * | 2009-01-16 | 2009-11-11 | 中山志和家电制品有限公司 | Device for locating mold insert |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4295887B2 (en) * | 2000-03-10 | 2009-07-15 | 本田技研工業株式会社 | Injection mold |
| JP2003145543A (en) * | 2001-11-14 | 2003-05-20 | Yoshihiro Hirai | Parting lock device |
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2014
- 2014-07-31 CN CN201410371550.4A patent/CN104260279B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201342760Y (en) * | 2009-01-16 | 2009-11-11 | 中山志和家电制品有限公司 | Device for locating mold insert |
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| Publication number | Publication date |
|---|---|
| CN104260279A (en) | 2015-01-07 |
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