CN102717486B - Mould for forming double-color toothbrush - Google Patents
Mould for forming double-color toothbrush Download PDFInfo
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- CN102717486B CN102717486B CN201210214378.2A CN201210214378A CN102717486B CN 102717486 B CN102717486 B CN 102717486B CN 201210214378 A CN201210214378 A CN 201210214378A CN 102717486 B CN102717486 B CN 102717486B
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Abstract
The invention relates to the improvement on a toothbrush needle drawing structure of a double-color forming mould of a toothbrush, and provides a mould for forming a double-color toothbrush. By the mould, a needle is retracted at certain temperature during secondary mould closure, so that a finished product is convenient to demould, and toothbrush hair holes can be prevented from being damaged. The mould comprises an upper mould plate, a lower mould plate, a mould core and a first-color moulded piece transposition device, wherein the mould core is provided with a first-color lower mould core, a first-color upper mould core, a second-color lower mould core and a second-color upper mould core; the first-color moulded piece transposition device comprises a rotating shaft, a central turntable and a toothbrush needle device; recession holes are formed at the positions, which are opposite to return needle holes on the central turntable, on the bottom surface of the first-color upper mould core; and the toothbrush needle device is fixed between the bottom surface of an accommodation groove and the bottom surface of a groove I when positioned at the first-color lower mould core, and can slide relative to sliding pin limiting screws when positioned at the second-color lower mould core. The structure of the mould is simplified, and the production cost is reduced.
Description
Technical field
The present invention relates to plastic mould, relate in particular to the improvement of toothbrush dual-color forming mould being taken out to brush needle construction.
Background technology
Along with toothbrush product is constantly brought forth new ideas, developed, start to emerge in large numbers dual-color forming toothbrush.Two-color toothbrush, when producing, needs mould secondary injection moulding to realize the injection mo(u)lding of two kinds of colors.In this process, toothbrush at least need to complete injection moulding under the effect of two molds, in production, due to toothbrush mold exchange more, is subject to artificial impact easily to cause die location generation error, cause the accuracy generation deviation of toothbrush injection mo(u)lding, affected the quality of production and the aesthetics of toothbrush.
When parting, toothbrush is easily bonded on patrix, and difficult drop-off affects production and processing efficiency.In prior art; the main patrix mechanical type ejecting structure that adopts comprises that knocking from up die plate form or bullet piece eject form etc., realizes two-color toothbrush is ejected to patrix, and these two kinds of modes need to increase thickness of slab or reset pin etc.; make structure relative complex, increased production cost.
And the bristle hole of toothbrush is at brush pin effect compacted under, when the demoulding of brush pin, often need to increase a procedure, to realize separated with toothbrush, increased working time.
The disclosed CN101249711A of the 2008.3.28. of State Intellectual Property Office, title: a kind of patented technology of automatic two-color toothbrush forming die, the injection mold of a kind of dichromatism continuous and automatic moulding is disclosed, technological means is: adopt center turntable to rotatablely move between dichromatism matching die, realize the moulding of continuous and automatic.But this case needs other ejecting mechanism to realize to the demoulding of bristle hole forming pin on brush holder, namely adopt external force to drive brush holder separated with brush pin with the second look die cavity.
In real work, because bristle hole is after moulding, " enclasping force " that brush pin is formed is compared with large (pin is many, in hole contact area large), the words of the row demoulding again after solidifying completely, the one, driving force that need be larger could realize the demoulding, the withdraw of the needle, the 2nd, curing brush holder head bristle hole, when the demoulding, can be damaged.
Summary of the invention
The present invention is directed to above problem, provide a kind of when secondary mould closing, " band temperature " withdraw of the needle, and then be convenient to the finished product demoulding, and can avoid the two-color toothbrush forming die of bristle hole damage.
Technical scheme of the present invention is: described mould comprises cope match-plate pattern, lower bolster and core rod, and described core rod is provided with the first look lower mold core, the first look upper mold core, the second look lower mold core and the second look upper mold core; Described the first look upper mold core and the second look upper mold core lateral shaft are entrenched on the bottom surface of described cope match-plate pattern symmetrically; Described the first look lower mold core and the second look lower mold core lateral shaft are located on described lower bolster symmetrically; Described the first look lower mold core is provided with the first look brush holder forming tank, and the second look lower mold core is provided with the second look brush holder forming tank;
Also comprise the first look profiled member transposer, described the first look profiled member transposer comprises rotating shaft, center turntable and brush needle device;
Described rotating shaft connects described center turntable; The bottom surface of described center turntable is provided with the storage tank of accommodating described brush needle device, and the bottom surface of described storage tank is provided with the brush pin hole connecting to described center turntable end face; Described brush needle device is connected in described storage tank by sliding pin stop screw;
The described storage tank that on the end face of described lower bolster, the described storage tank of corresponding the first look lower mold core one side is provided with groove one, corresponding the second look lower mold core one side is provided with groove two, the degree of depth of groove two is greater than the degree of depth of groove one, and the difference of the described degree of depth is greater than the degree of depth in bristle hole on described toothbrush;
Described brush needle device comprises brush needle plate assembly and brush needle plate return pin; Described center turntable is provided with return pin hole, and the bottom of described brush needle plate return pin is fixedly connected with described brush needle plate assembly, its head end towards described cope match-plate pattern;
Return pin hole on the turntable of corresponding described center, described the first look upper mold core bottom surface is provided with resigning hole;
Make described brush needle device when described the first look lower mold core position, be fixedly installed between described storage tank bottom surface and described groove one bottom surface, can slide with respect to described sliding pin stop screw while being positioned at described the second look lower mold core position.
Described center turntable is provided with inclined-plane one towards the first look lower mold core and the second look lower mold core side, and described the first look lower mold core and the second look lower mold core are the inclined-plane two with described inclined-plane adaptation towards the side of described center situation.
Also comprise turntable guide pad, described lower bolster is provided with lower mold core and center turntable storage tank, described turntable guide pad is located at the two sides, middle part of described lower mold core and center turntable storage tank, and the two sides of the medial surface of described turntable guide pad and described center turntable are adaptive by guiding surface.
Also comprise return pin meson, described return pin meson is set in described brush needle plate return pin, between described brush needle plate assembly and described storage tank bottom surface.
Also comprise brush pincushion plate, described brush pincushion plate is located on the bottom surface of described groove one and groove two.
Described brush needle plate assembly comprises brush needle plate, brush needle holder plate and some brush pins, on described brush needle plate, the quantity of corresponding described some brush pins offers aperture, described some brush pins are located in described hole correspondingly, and the end face of described brush needle holder plate contacts the bottom of described some brush pins and is fixedly connected on the bottom surface of described brush needle plate; The bottom surface of described brush needle plate offers stepped hole one, the bottom of described brush needle plate return pin is provided with step circle one, described step circle one is located in described stepped hole one, and the bottom surface of described step circle one contacts the end face of described brush needle holder plate, and described brush needle plate return pin is fixedly connected between described brush needle plate and described brush needle holder plate.
The bottom surface of described brush needle holder plate is provided with stepped hole two, and the head of screw of described sliding pin stop screw is located in described stepped hole two.
Two-color toothbrush forming die one of the present invention is penetrated matched moulds by first moulding between core rod group one and counterdie center turntable of product, then start somatotype, when somatotype finishes, board central rotating shaft first counterdie center turntable is ejected (while ejecting the first look brush holder still with brush pin be connected, continue to stay on the handle head die cavity of center turntable), then 180 degree rotations again, in this process, brush needle plate assembly along with the spinning movement simultaneously of counterdie center turntable, after rotating shaft return, the first look brush holder is fallen in the second look lower mold core.
Two penetrate matched moulds, when two penetrate matched moulds, carried out taking out brush pin action, patrix on the bottom surface of the second look upper mold core owing to there is no resigning hole, when matched moulds, lower top brush needle plate return pin, brush needle plate return pin drives brush needle assemblies, brush needle assemblies to the motion of counterdie direction, to enter groove two, because groove two is darker than groove one on sliding pin stop screw, make the end face of brushing pin can leave brush holder head, depart from bristle hole; During with respect to the first look moulding, groove one bottom surface height just makes to brush pin top and (enters handle head, meet the requirement of bristle hole depth) in setting height, forms the effect of differential drawn needle.
Then start to penetrate the toothbrush secondary injection molding of moulding to one.Now, because the second look brush holder and contacting of the second look forming cavity are only surperficial contacts, then by ejecting mechanism or manually finished product can be taken out; Two penetrate matched moulds during, one penetrates mould assembling action carries out simultaneously, both go round and begin again.
When one penetrates matched moulds, because the first look upper mold core is provided with resigning hole, making to brush needle plate return pin can stretch into; When two penetrate matched moulds, owing to there is no resigning hole in the second look upper mold core, cause brushing needle plate return pin and drive by force brush needle holder plate, the moving brush of brush needle holder strip needle plate, brush needle plate detaches brush by brush pin then by force, completes and takes out the action of brush pin.The side of counterdie center turntable is made as inclined-plane, has improved the accuracy of return.The present invention has simplified mould structure, has reduced production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of counterdie of the present invention,
Fig. 2 is the structural representation of patrix of the present invention,
Fig. 3 is the cutaway view of A-A face in Fig. 1,
Fig. 4 is the cutaway view of B-B face in Fig. 1,
Fig. 5 is the cutaway view of C-C face in Fig. 1,
Fig. 6 is the cutaway view of D-D face in Fig. 1,
Fig. 7 is the cutaway view of E-E face in Fig. 1,
Fig. 8 is M place partial enlarged drawing in Fig. 3,
Fig. 9 is N place partial enlarged drawing in Fig. 4,
Figure 10 is P place partial enlarged drawing in Fig. 5,
Figure 11 is the schematic diagram of main parts size after disassembling in the present invention;
In figure: the 1st, cope match-plate pattern, 11 is first look upper mold core, the 110th, resigning hole, 12 is second look upper mold core,
The 2nd, lower bolster, 21 is first look lower mold core, 22 is second look lower mold core, the 23rd, groove one, 24th, groove two,
The 3rd, center turntable, the 301st, inclined-plane, the 302nd, brush pin hole, the 31st, brush needle plate, the 32nd, brush needle holder plate, the 33rd, brush pincushion plate, the 34th, brush pin, the 35th, sliding pin stop screw, the 351st, sliding pin stop screw meson, the 36th, brush needle plate return pin, the 37th, return pin meson,
The 4th, turntable guide pad, the 41st, guiding surface,
51 is first look brush holders, and 52 is second look brush holders, the 500th, and bristle hole,
The 61st, shaft hole, the 62nd, dowel hole.
The specific embodiment
The present invention is as shown in Fig. 1-11, and described mould comprises cope match-plate pattern 1, lower bolster 2 and core rod, and described core rod is provided with the first look lower mold core 21, the first look upper mold core 11, the second look lower mold core 22 and the second look upper mold core 12; Described the first look upper mold core 11 and the second look upper mold core 12 lateral shafts are entrenched on the bottom surface of described cope match-plate pattern 1 symmetrically; Described the first look lower mold core 21 and the second look lower mold core 22 lateral shafts are located on described lower bolster 2 symmetrically; Described the first look lower mold core 21 is provided with the first look brush holder 51 forming tank, and the second look lower mold core 22 is provided with the second look brush holder 52 forming tank;
Also comprise the first look profiled member transposer, described the first look profiled member transposer comprises rotating shaft, center turntable 3 and brush needle device; On lower bolster 2, the second look lower mold core 22 and the first look lower mold core 21 are located at respectively in lower mold core groove, be situated between and be also provided with groove, described center turntable 3 is located in groove, between lower mold core groove and groove, be also provided with step, the second look lower mold core 22 and the first look lower mold core 21 can accurately be located.
Described rotating shaft connects described center turntable 3, on lower bolster 2 and center turntable 3, is provided with shaft hole 61, and described rotating shaft is located in shaft hole 61; On center turntable 3 and cope match-plate pattern 1, be also provided with dowel hole 62, realize the operating position fixings such as both matched moulds accurate; The bottom surface of described center turntable 3 is provided with the storage tank of accommodating described brush needle device, and the bottom surface of described storage tank is provided with the brush pin hole 302 connecting to described center turntable end face; Described brush needle device is connected in described storage tank by sliding pin stop screw 35;
The described storage tank that on the end face of described lower bolster 2, the described storage tank of corresponding the first look lower mold core 21 1 sides is provided with groove 1, corresponding the second look lower mold core 22 1 sides is provided with groove 2 24, the degree of depth of groove 2 24 is greater than the degree of depth of groove 1, poor (being the degree of depth of H in Fig. 8) of the described degree of depth is greater than the degree of depth in bristle hole 500 on described toothbrush, and making to brush pin 34 can the demoulding;
Described brush needle device comprises brush needle plate assembly and brush needle plate return pin 36; Described center turntable 3 is provided with return pin hole, and the bottom of described brush needle plate return pin 36 is fixedly connected with described brush needle plate assembly, its head end towards described cope match-plate pattern 1;
Return pin hole on described the first corresponding described center, look upper mold core 11 bottom surfaces turntable 3 is provided with resigning hole 110;
Make described brush needle device when described the first look lower mold core 21 position, be fixedly installed between described storage tank bottom surface and described groove one 23 bottom surfaces, can slide with respect to described sliding pin stop screw 35 while being positioned at described the second look lower mold core 22 position.
Described center turntable 3 is provided with inclined-plane one towards the first look lower mold core 21 and the second look lower mold core 22 sides, described the first look lower mold core 21 and the second look lower mold core 22 are the inclined-plane two with described inclined-plane adaptation towards the side of described center situation, and described center turntable 3, the first look lower mold core 21 and the second look lower mold core 22 are by inclined-plane 301 cooperation that is connected.
Also comprise turntable guide pad 4, described lower bolster 2 is provided with lower mold core and center turntable storage tank, described turntable guide pad 4 is located at the two sides, middle part of described lower mold core and center turntable storage tank, and the two sides of the medial surface of described turntable guide pad 4 and described center turntable 3 are by guiding surface 41 adaptations.
Also comprise return pin meson 37, described return pin meson 37 is set in described brush needle plate return pin 36, between described brush needle plate assembly and described storage tank bottom surface.
Also comprise brush pincushion plate 33, described brush pincushion plate 33 is located on the bottom surface of described groove 1 and groove 2 24.
Described brush needle plate assembly comprises brush needle plate 31, brush needle holder plate 32 and some brush pins 34, on described brush needle plate 31, the quantity of corresponding described some brush pins 34 offers aperture, described some brush pins 34 are located in described hole correspondingly, and the end face of described brush needle holder plate 32 contacts the bottom of described some brush pins 34 and is fixedly connected on the bottom surface of described brush needle plate 31; The bottom surface of described brush needle plate 31 offers stepped hole one, the bottom of described brush needle plate return pin 36 is provided with step circle one, described step circle one is located in described stepped hole one, and the bottom surface of described step circle one contacts the end face of described brush needle holder plate 32, and described brush needle plate return pin 36 is fixedly connected between described brush needle plate 31 and described brush needle holder plate 32.
As shown in Fig. 4,6,9, the bottom surface of described brush needle holder plate 32 is provided with stepped hole two, and the head of screw of described sliding pin stop screw 35 is located in described stepped hole two.The head of described sliding pin stop screw 35 is fixedly connected with center turntable 3 by helicitic texture, also comprises that sliding pin stop screw meson 351 is set on sliding pin stop screw 35, between described brush needle plate assembly and described storage tank bottom surface.When two penetrate matched moulds, lower top brush needle plate return pin 36, brush needle plate return pin 36 drives brush needle assemblies, brush needle assemblies to counterdie direction, to move on sliding pin stop screw 35.
Claims (7)
1. a two-color toothbrush forming die, described mould comprises cope match-plate pattern, lower bolster and core rod, described core rod is provided with the first look lower mold core, the first look upper mold core, the second look lower mold core and the second look upper mold core; Described the first look upper mold core and the second look upper mold core lateral shaft are entrenched on the bottom surface of described cope match-plate pattern symmetrically; Described the first look lower mold core and the second look lower mold core lateral shaft are located on described lower bolster symmetrically; Described the first look lower mold core is provided with the first look brush holder forming tank, and the second look lower mold core is provided with the second look brush holder forming tank;
It is characterized in that, also comprise the first look profiled member transposer, described the first look profiled member transposer comprises rotating shaft, center turntable and brush needle device;
Described rotating shaft connects described center turntable; The bottom surface of described center turntable is provided with the storage tank of accommodating described brush needle device, and the bottom surface of described storage tank is provided with the brush pin hole connecting to described center turntable end face; Described brush needle device is connected in described storage tank by sliding pin stop screw;
The described storage tank that on the end face of described lower bolster, the described storage tank of corresponding the first look lower mold core one side is provided with groove one, corresponding the second look lower mold core one side is provided with groove two, the degree of depth of groove two is greater than the degree of depth of groove one, and the difference of the described degree of depth is greater than the degree of depth in bristle hole on described toothbrush;
Described brush needle device comprises brush needle plate assembly and brush needle plate return pin; Described center turntable is provided with return pin hole, and the bottom of described brush needle plate return pin is fixedly connected with described brush needle plate assembly, its head end towards described cope match-plate pattern;
Return pin hole on the turntable of corresponding described center, described the first look upper mold core bottom surface is provided with resigning hole;
Make described brush needle device when described the first look lower mold core position, be fixedly installed between described storage tank bottom surface and described groove one bottom surface, can slide with respect to described sliding pin stop screw while being positioned at described the second look lower mold core position.
2. a kind of two-color toothbrush forming die according to claim 1, it is characterized in that, described center turntable is provided with inclined-plane one towards the first look lower mold core and the second look lower mold core side, and described the first look lower mold core and the second look lower mold core are the inclined-plane two with described inclined-plane adaptation towards the side of described center situation.
3. a kind of two-color toothbrush forming die according to claim 1, it is characterized in that, also comprise turntable guide pad, described lower bolster is provided with lower mold core and center turntable storage tank, described turntable guide pad is located at the two sides, middle part of described lower mold core and center turntable storage tank, and the two sides of the medial surface of described turntable guide pad and described center turntable are adaptive by guiding surface.
4. a kind of two-color toothbrush forming die according to claim 1, is characterized in that, also comprises return pin meson, and described return pin meson is set in described brush needle plate return pin, between described brush needle plate assembly and described storage tank bottom surface.
5. a kind of two-color toothbrush forming die according to claim 1, is characterized in that, also comprises brush pincushion plate, and described brush pincushion plate is located on the bottom surface of described groove one and groove two.
6. a kind of two-color toothbrush forming die according to claim 1, it is characterized in that, described brush needle plate assembly comprises brush needle plate, brush needle holder plate and some brush pins, on described brush needle plate, the quantity of corresponding described some brush pins offers aperture, described some brush pins are located in described hole correspondingly, and the end face of described brush needle holder plate contacts the bottom of described some brush pins and is fixedly connected on the bottom surface of described brush needle plate; The bottom surface of described brush needle plate offers stepped hole one, the bottom of described brush needle plate return pin is provided with step circle one, described step circle one is located in described stepped hole one, and the bottom surface of described step circle one contacts the end face of described brush needle holder plate, and described brush needle plate return pin is fixedly connected between described brush needle plate and described brush needle holder plate.
7. a kind of two-color toothbrush forming die according to claim 6, is characterized in that, the bottom surface of described brush needle holder plate is provided with stepped hole two, and the head of screw of described sliding pin stop screw is located in described stepped hole two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210214378.2A CN102717486B (en) | 2012-06-26 | 2012-06-26 | Mould for forming double-color toothbrush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210214378.2A CN102717486B (en) | 2012-06-26 | 2012-06-26 | Mould for forming double-color toothbrush |
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| Publication Number | Publication Date |
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| CN102717486A CN102717486A (en) | 2012-10-10 |
| CN102717486B true CN102717486B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210214378.2A Active CN102717486B (en) | 2012-06-26 | 2012-06-26 | Mould for forming double-color toothbrush |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619725A (en) * | 2015-12-22 | 2016-06-01 | 宁波舜宇模具股份有限公司 | Double-color core-pulling rotary compound ejection mechanism |
| CN105479682B (en) * | 2016-01-20 | 2018-02-16 | 广东罗曼智能科技股份有限公司 | A kind of mould for oblique brush-finish toothbrush |
| CN107336402B (en) * | 2017-08-31 | 2023-11-10 | 慈溪市精诚模具有限公司 | Automatic in-mold transfer mold |
| CN110893663A (en) * | 2018-09-12 | 2020-03-20 | 马雪 | Rectangular shape injection molding |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB751314A (en) * | 1953-08-26 | 1956-06-27 | Louis Frank Kutik | Apparatus for moulding plastic material and ejecting the moulded articles |
| JPH0550463A (en) * | 1991-08-26 | 1993-03-02 | Sunstar Inc | Injection molding method of composite molding and injection mold to be used therefor |
| DE19515294A1 (en) * | 1995-04-26 | 1996-10-31 | Zahoransky Formenbau Gmbh | Machine making toothbrush(es) which separates injection moulding from bristle preparation |
| CN102371657A (en) * | 2011-11-01 | 2012-03-14 | 中山市福兴塑胶模具有限公司 | Toothbrush die |
| CN202623174U (en) * | 2012-06-26 | 2012-12-26 | 扬州恒生精密模具有限公司 | Double-color toothbrush molding mould |
-
2012
- 2012-06-26 CN CN201210214378.2A patent/CN102717486B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB751314A (en) * | 1953-08-26 | 1956-06-27 | Louis Frank Kutik | Apparatus for moulding plastic material and ejecting the moulded articles |
| JPH0550463A (en) * | 1991-08-26 | 1993-03-02 | Sunstar Inc | Injection molding method of composite molding and injection mold to be used therefor |
| DE19515294A1 (en) * | 1995-04-26 | 1996-10-31 | Zahoransky Formenbau Gmbh | Machine making toothbrush(es) which separates injection moulding from bristle preparation |
| CN102371657A (en) * | 2011-11-01 | 2012-03-14 | 中山市福兴塑胶模具有限公司 | Toothbrush die |
| CN202623174U (en) * | 2012-06-26 | 2012-12-26 | 扬州恒生精密模具有限公司 | Double-color toothbrush molding mould |
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| CN102717486A (en) | 2012-10-10 |
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