CN104260279A - Mold capable of preventing mold cores from expanding - Google Patents
Mold capable of preventing mold cores from expanding Download PDFInfo
- Publication number
- CN104260279A CN104260279A CN201410371550.4A CN201410371550A CN104260279A CN 104260279 A CN104260279 A CN 104260279A CN 201410371550 A CN201410371550 A CN 201410371550A CN 104260279 A CN104260279 A CN 104260279A
- Authority
- CN
- China
- Prior art keywords
- core rod
- square groove
- bar lock
- distending
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Landscapes
- 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 invention discloses a mold capable of preventing mold cores from expanding. The mold comprises the front mold core and the rear mold core matched with the front mold core. Each of the upper side, the lower side, the left side and the right side of the outer wall of a mold cavity of the front mold core is provided with at least one first square groove; an outer opening of each first square groove is large, and an inner opening of each first square groove is small; each of the upper side, the lower side, the left side and the right side of the outer wall of a mold core body of the rear mold core is correspondingly provided with at least one second square groove. Each first square groove and the corresponding second square groove are fixed through a strip-shaped lock. According to the mold, it can be ensured that the mold cavity of the front mold core and the mold core body of the rear mold core are accurately matched at the normal temperature; meanwhile, the problem that under the high-temperature and high-pressure action, the mold cavity is easily expanded is solved, so that clamping and accurate positioning can be achieved.
Description
Technical field
The present invention relates to mould structure field, refer more particularly to high temperature, high voltage precision injection mold.
Background technology
Under HTHP effect repeatedly, easily there is core rod distending and the problem that misplaces in the core rod of its front mould of existing mould and rear mold, causes front and back core rod can accurately to have to prevent the protective device of core rod distending in positioning instant prior art.Due to the major part that core rod is shaped article, when current rear core rod expands under condition of different temperatures, the core rod of front and back mould will misplace, injection moulding is caused out to occur product wall unevenness, edge burr phenomenon, particularly high smooth product will reach the requirement of exempting from repairing, avoids as far as possible pruning and repairing.Wall unevenness impact assembling, burr problem not only affects attractive in appearance, also easily damages finger when wiping machine.
Therefore, for above-mentioned defect problem, this case provides a kind of new departure, mainly solves and improves steam mold injection moulding quality.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of Tool and Die Technology preventing core rod distending, be intended to solve the easy distending of its core rod of existing mould and cause product quality to be affected and affect the problem of die life.
Technical scheme of the present invention is as follows:
A kind of mould preventing core rod distending, wherein, comprise: front core rod and the rear core rod mated with described front core rod, four limits up and down of the die cavity outer wall of described front core rod all offer at least one first square groove, described first square groove collar extension is large, inner young, the four limit correspondences up and down of the core outer wall of core rod offer at least one second square groove in the rear, and described first square groove is fixed by Bar lock with the second corresponding square groove.
The mould of described prevented core rod distending, wherein, the shape of cross section of described first square groove is rectangle, and the vertical sectional shape of described first square groove is isosceles trapezoid.
The mould of described prevented core rod distending, wherein, described Bar lock is provided with the screw nail for fixing Bar lock, and the screw nail on Bar lock runs through setting, is provided with at least one screw nail for fixing bar shaped lock tongue in described second square groove.
The mould of described prevented core rod distending, wherein, described Bar lock is provided with the pin hole for tripping out Bar lock, and the pin hole on Bar lock runs through setting, is provided with at least one pin hole for tripping out Bar lock tongue in described second square groove.
The mould of described prevented core rod distending, wherein, the shape of cross section of described Bar lock head is rectangle, and the vertical sectional shape of described Bar 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 described front core rod offers 1 or 2 the first square groove.
The mould of described prevented core rod distending, wherein, the left side of the die cavity outer wall of described front core rod and the right offer 1 or 2 the first square groove.
The mould of described prevented core rod distending, wherein, the root of described Bar lock is installed on the core unit with grooves in outer wall of rear core rod.
The mould of described prevented core rod distending, wherein, it is that empty avoiding is arranged that two of the head of described Bar lock is faced directly with described first square groove.
The mould of described prevented core rod distending, wherein, two inclined-planes of the head of described Bar lock and described first square groove are for being close to setting.
Beneficial effect: the present invention offers large, inner the first young square groove of collar extension by four limits up and down of the die cavity outer wall at front core rod, offer the second corresponding square groove at the core outer wall of rear core rod simultaneously, be inserted in the first square groove and the second square groove by Bar lock, thus ensure the die cavity of front core rod and the core accurate match at normal temperatures of rear core rod, also can solve die cavity simultaneously and under HTHP effect, easily distending occurs and can play and clamp down on and the problem of accurately locating.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation preventing core rod before in the mould of core rod distending of the present invention;
Fig. 2 is a kind of structural representation preventing core rod after in the mould of core rod distending of the present invention;
Fig. 3 is a kind of the first viewing angle constructions schematic diagram preventing Bar lock in the mould of core rod distending of the present invention;
Fig. 4 is a kind of the second viewing angle constructions schematic diagram preventing Bar lock in the mould of core rod distending of the present invention;
Fig. 5 is a kind of the 3rd viewing angle constructions schematic diagram preventing Bar lock in the mould of core rod distending of the present invention;
Fig. 6 is a kind of mould one decomposition texture schematic diagram preventing core rod distending of the present invention;
Fig. 7 is a kind of another decomposition texture schematic diagram of mould 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 present invention;
The A-A face sectional view that Fig. 9 is structural representation shown in Fig. 8;
Figure 10 is the partial enlarged drawing of part B in Fig. 9.
Detailed description of the invention
The invention provides a kind of mould preventing core rod distending, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Shown in composition graphs 1 and Fig. 2, a kind of mould preventing core rod distending of the present invention, it comprises two large divisions: front core rod 100 and the rear core rod 200 matched, front core rod 100 and rear core rod 200 are all provided with: die cavity 120 and core 220.
At least one first square groove 110 is all offered on four limits up and down of die cavity 120 outer wall of described front core rod 100, corresponding, four limits up and down of core 220 outer wall of core rod 200 all offer at least one second square groove 210 in the rear, these two square grooves are by Bar lock 300(as shown in Figure 3) be fixed, the shape of the first square groove 110 is that collar extension is large, in young, the shape of the second square groove 210 can be set to the equally large structure of collar extension and inner mouth, also collar extension can be arranged to large, in young shape, such Bar lock two ends just can be inserted in the second square groove 210 of the first square groove 110 and correspondence respectively.Inserted by Bar lock accurate match and the present invention ensured the die cavity 120 of front core rod 100 and the clamping down on of core 220 of rear core rod 200 and accurately locate.
Also be provided with in described second square groove 210 for the screw nail 211 of fixing Bar lock 300 tongue and the pin hole 212 for tripping out Bar lock 300 tongue.
The first described square groove 110, its shape of cross section is rectangle, and its vertical sectional shape is isosceles trapezoid.Namely whole first square groove 110 is used for inserting the head of Bar lock 300, and whole second square groove 210 is used for inserting the root of Bar lock 300, as shown in Figures 3 to 5, its head of Bar lock 300 is also shape of cross section is rectangle, vertical sectional shape is isosceles trapezoid, namely its root is large, head is little, this structure can ensure that Bar lock 300 can accurately be inserted in the first square groove 110 and the second square groove 210, ensure core 220 accurate match at normal temperatures of die cavity 120 at front core rod 100 and rear core rod 200, also can solve die cavity occur easily distending to occur under HTHP effect and can play to clamp down on and also can accurately locate simultaneously.
In the present embodiment, front core rod also will be fixed on mould bases, also offers guide pillar hole respectively in the corner of front mould bases, corresponding, mould bases after in the rear core rod also being installed, the corner of rear mould bases offers corresponding guide pillar respectively.Preliminary Correction of Orientation effect is only played in this mould bases upper guide post location that utilizes, and the accurate location of core rod then needs to utilize die cavity, and on the outside wall of core, Bar lock 300 as the aforementioned, clamps down on location with core rod square groove.
Each visual angle schematic diagram of Bar lock 300 as shown in Figures 3 to 5, its head is a trapezium structure, namely head cross-sectional is rectangle, and head longitudinal section is isosceles trapezoid, namely in (four sides, the four sides contacted with the first square groove, up and down, before and after not comprising) in, wherein relative two sides (two sides, left and right in Fig. 4 visual angle) is for facing directly, two sides (upper and lower surface in Fig. 4 visual angle) relative is in addition inclined-plane, when coordinating, two face directly as empty avoiding state, namely when Bar lock 300 head is inserted in the first square groove 110, certain interval is there is with the first square groove 110, two inclined-planes then closely cooperate with the first square groove 110.The cross section of its head is little, and head is used for being inserted in the first square groove 110, and root is used for being inserted in the second square groove 210.In embodiments of the present invention, Bar lock 300 and the first square groove 110 are inserted in groove with the form of prismatoid, so no matter be core or die cavity, when there is plasticity change in size in it on any one direction up and down, die cavity and core can be clamped down on by the trapezium structure of described Bar lock 300, to realize symmetrical location accurately.By the trapezium structure of this Bar lock 300, when positioning, would not occur that positioning runout is to a direction, so ensure that Product Assembly by Bar lock 300 of the present invention, and extending the mold use life-span.And this is core place of the present invention, the invention solves in the past core rod easy distending and the problem that can not accurately locate under HTHP effect, there is outstanding substantive distinguishing features and improve significantly.
In described Bar lock 300, be provided with the screw nail 310 for fixing Bar lock 300, described screw nail 310 runs through setting.Meanwhile, described Bar lock 300 is provided with the pin hole 320 for tripping out Bar lock 300, and described pin hole 320 runs through setting.Screw nail 310 on Bar lock 300 can arrange two, and pin hole 320 can arrange one, and is arranged in the middle of screw nail 310, be arranged side by side, in an embodiment as illustrated in figure 3, screw nail 320 arranges two, pin hole 320 arranges one, and is arranged in the middle of screw nail 320.Corresponding, the screw nail 211 in the second square groove 200 and pin hole 212 are also arrange according to above-mentioned rule, and namely arrange two screw nail 211 and a pin hole 212, pin hole 212 is arranged in the middle of screw nail 211.The root of described Bar lock 300 is installed on the groove of core 220 outer wall of rear core rod 200.
Certainly, the screw nail 310 on Bar lock 300 and pin hole 320 also can be arranged to other quantity, specifically can arrange according to die size and technological requirement.Such as offer 2 screw nail 310 and 2 pin holes 320.Screw nail 310 is all arranged on the two ends of pin hole 320.
In addition, the quantity of the second square groove 210 of the first square groove 110 of die cavity 120 outer wall on front core rod 100 and core 220 outer wall of rear core rod 200 also can be selected to offer quantity according to die size size, such as the first square groove, 1 or 2 can be offered on the left side of die cavity 120 outer wall of front core rod, offer 1 or 2 on the right, on top offer 1 or 2, offer 1 or 2 below, but it is identical to need the right and left and upper and lower both sides to offer quantity, stressed more even to ensure.
When installing, first Bar lock 300 root is arranged in second square groove 210 of core 220 outer wall of rear core rod 200, again Bar lock 300 head is arranged in first square groove 110 of core chamber 120 outer wall of front core rod 100, as shown in Figure 6 and Figure 7, two of Bar lock 300 head is faced directly and is provided with clearance position, namely be not close-fitting with the connection of the first square groove 110, and clearance position is not established in two inclined-planes.When die sinking, Bar lock 300 tongue leaves the first square groove 110 of die cavity 120 outer wall of front core rod, and when matched moulds, Bar lock 300 tongue is inserted in the first square groove 110.When core rod is subject to the outside distending of HTHP effect, Bar lock 300 is locked by core rod with the first square groove 110 of core chamber 120 outer wall of front core rod 200, as shown in Fig. 9 to Figure 10, ensure that core 220 mates with die cavity 120 well, the second square groove 210 in like manner for the core 220 outer wall the right and left being in rear core rod 200 is also can be locked by core rod, ensure that core rod plays when distending clamp down on and can accurately locate, the first square groove 110 for front core rod 100 die cavity 120 outer wall is so same.
In sum, the present invention by front core rod die cavity outer wall offer large, inner the first young square groove of collar extension in four limits up and down, offer the second corresponding square groove in four limits up and down at the core outer wall of rear core rod simultaneously, be inserted in the first square groove and the second square groove by Bar lock, thus ensure the die cavity of front core rod and the core accurate match at normal temperatures of rear core rod, also can solve die cavity simultaneously and under HTHP effect, easily distending occurs and the problem of clamping down on and also can accurately locate can be played.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. one kind can prevent the mould of core rod distending, it is characterized in that, comprise: front core rod and the rear core rod mated with described front core rod, four limits up and down of the die cavity outer wall of described front core rod all offer at least one first square groove, described first square groove collar extension is large, inner young, the four limit correspondences up and down of the core outer wall of core rod offer at least one second square groove in the rear, and described first square groove is fixed by Bar lock with the second corresponding square groove.
2. the mould preventing core rod distending according to claim 1, is characterized in that, the shape of cross section of described first square groove is rectangle, and the vertical sectional shape of described first square groove is isosceles trapezoid.
3. the mould preventing core rod distending according to claim 1, it is characterized in that, described Bar lock is provided with the screw nail for fixing Bar lock, and the screw nail on Bar lock runs through setting, is provided with at least one screw nail for fixing bar shaped lock tongue in described second square groove.
4. the mould preventing core rod distending according to claim 1, it is characterized in that, described Bar lock is provided with the pin hole for tripping out Bar lock, and the pin hole on Bar lock runs through setting, is provided with at least one pin hole for tripping out Bar lock tongue in described second square groove.
5. the mould preventing core rod distending according to claim 2, is characterized in that, the shape of cross section of described Bar lock head is rectangle, and the vertical sectional shape of described Bar lock head is isosceles trapezoid.
6. the mould preventing core rod distending according to claim 1, is characterized in that, the bottom and upper segment of the die cavity outer wall of described front core rod offers 1 or 2 the first square groove.
7. the mould preventing core rod distending according to claim 1, is characterized in that, the left side of the die cavity outer wall of described front core rod and the right offer 1 or 2 the first square groove.
8. the mould preventing core rod distending according to claim 1, is characterized in that, the root of described Bar lock is installed on the core unit with grooves in outer wall of rear core rod.
9. the mould preventing core rod distending according to claim 5, is characterized in that, it is that empty avoiding is arranged that two of the head of described Bar lock is faced directly with described first square groove.
10. the mould preventing core rod distending according to claim 5, is characterized in that, two inclined-planes of the head of described Bar lock and described first square groove are for being close to setting.
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 true CN104260279A (en) | 2015-01-07 |
| CN104260279B CN104260279B (en) | 2017-06-23 |
Family
ID=52151922
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104260279B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001252950A (en) * | 2000-03-10 | 2001-09-18 | Honda Motor Co Ltd | Injection mold |
| JP2003145543A (en) * | 2001-11-14 | 2003-05-20 | Yoshihiro Hirai | Parting lock device |
| 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 |
-
2014
- 2014-07-31 CN CN201410371550.4A patent/CN104260279B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001252950A (en) * | 2000-03-10 | 2001-09-18 | Honda Motor Co Ltd | Injection mold |
| JP2003145543A (en) * | 2001-11-14 | 2003-05-20 | Yoshihiro Hirai | Parting lock device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104260279B (en) | 2017-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2133670T3 (en) | SLIDING RACK SET FOR REFRIGERATOR. | |
| CN204354408U (en) | A kind of mould for the production of the magnetisable inserts product of band | |
| CN104439059B (en) | Production method of wax mold of hollow blade and mold used in production method | |
| CN104260279A (en) | Mold capable of preventing mold cores from expanding | |
| CN102145527A (en) | Injection mould with insert structure | |
| KR100872314B1 (en) | Temple and the manufacture method | |
| CN211709863U (en) | Floating needle positioning injection mold | |
| CN205255395U (en) | Place mould of inserts subassembly | |
| MX2022007449A (en) | Tool and method for injection moulding an injection-moulded part in a tool. | |
| CN205631245U (en) | Special mould is inlayed to copper nut | |
| CN104476737A (en) | Mold for large-size uniparted hyperboloid injection molding part | |
| CN212045647U (en) | Mold for molding plastic part with nut | |
| CN207415866U (en) | Mould split line structure | |
| CN208247823U (en) | A kind of lead for retractable pencil plane of soft lead for retractable pencil | |
| CN206276914U (en) | A kind of powder injection pile crown mould for Metal Eyeglasses laser welding | |
| CN202318751U (en) | Toothbrush three-color injection mold suite | |
| CN205255416U (en) | Double -deck gear forming die | |
| CN104626475B (en) | One kind overcomes Surface Appearance break difference structure and processing technology | |
| CN204106762U (en) | The needle stand location structure of safe self-breaking syringe | |
| CN211137982U (en) | Cosmetic lipstick pipe spiral mould | |
| CN101954717B (en) | Supporting structure for manufacturing key with plastic part at tail and metal part at front end | |
| CN203844124U (en) | Cavity insert for injection moulds | |
| CN204340125U (en) | There is the high-precision mold auxiliary guide of pointed cone structure | |
| CN208375817U (en) | A kind of high-accuracy connector protection cover molding die | |
| CN203752436U (en) | Injection-molding positioning mold for double-color super-thick coated piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |