CN102744836A - Injection molding die of hexagonal valve body - Google Patents
Injection molding die of hexagonal valve body Download PDFInfo
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- CN102744836A CN102744836A CN2012102413226A CN201210241322A CN102744836A CN 102744836 A CN102744836 A CN 102744836A CN 2012102413226 A CN2012102413226 A CN 2012102413226A CN 201210241322 A CN201210241322 A CN 201210241322A CN 102744836 A CN102744836 A CN 102744836A
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- moulding
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Abstract
The invention discloses an injection molding die of a hexagonal valve body and belongs to the injection molding die. The injection molding die comprises a fixed template, a moveable template, a fixed die base plate, a moveable die base plate, a cushion plate, a push plate, a material push plate, a push plate fixing plate, a fixed die insert, a moveable die insert, a first screw thread automatic de-molding mechanism and a second screw thread automatic de-molding mechanism, wherein a molding cavity used for molding the hexagonal valve body is arranged between the fixed die insert and the moveable die insert; the first screw thread automatic de-molding mechanism is used for molding a first screw thread concave hole; and the second screw thread automatic de-molding mechanism is used for molding a second screw thread concave hole. The hexagonal valve body is high in production efficiency and relatively high in precision, and threads are not damaged.
Description
Technical field:
The present invention relates to a kind of injection mold, specifically is a kind of injection mold that is used for moulding hexagonal valve body.
Background technology:
Product shown in Figure 4 is the hexagonal valve body 101 of plastic material, and the right ends of this product has the first screw thread shrinkage pool 102, has the second screw thread shrinkage pool 103 below; And at present, the threaded plastic product of injection mo(u)lding adopts forced stripper mechanism and hand-stripping dual mode usually, and forced stripper mechanism is to depend on thimble or the push piece plate is forced release to plastic product from thread core; Though it is simple in structure that the mould of this stripping means has, advantage of high production efficiency, precision are not high; Thread is cut off for rectangle or near the thread of rectangle when the forced stripper mechanism; Trigonodont screw thread for standard is very thin owing to cusp, forced stripper mechanism easy deformation or scratch, and the hand-stripping mode is meant after the injection mold die sinking; With manual mode plastic product is spun down from thread core; Though this stripping means can obtain higher formed precision, during with manual the back-out, efficient is lower.
Summary of the invention:
The technical problem that the present invention will solve is, provides a kind of and can make the first screw thread shrinkage pool and the second screw thread shrinkage pool not only formed precision is high, and hexagonal valve body injection mold that can automatic demoulding.
Technical solution of the present invention is a kind of hexagonal valve body injection mold with following structure to be provided: comprise solid plate, moving platen, top clamping plate, Bottom clamp plate, cushion block, push pedal, scraping wings, push pedal fixed head, cover half benevolence and mavable module core, be provided with the die cavity that is used for moulding hexagonal valve body between the mavable module core of cover half Renhe; Wherein, also comprise first Mould of Automatic Separating for Thread mechanism that is used for the moulding first screw thread shrinkage pool and the second Mould of Automatic Separating for Thread mechanism that is used for the moulding second screw thread shrinkage pool, the first Mould of Automatic Separating for Thread mechanism comprises the screw-type bar that first motor fixed plate, first supports backing plate, first hydraulic motor and is used for the moulding first screw thread shrinkage pool; First supports backing plate is connected with moving platen, and first motor fixed plate and first supports backing plate and is connected, and first hydraulic motor is connected with first motor fixed plate; The right-hand member of screw-type bar is provided with the first moulding screw thread that is used for the moulding first screw thread shrinkage pool; The screw-type bar is provided with first thread segment, and the right-hand member of screw-type bar is positioned at die cavity at the first moulding screw thread between the mavable module core of cover half Renhe and on the screw-type bar, is rotary with first threaded sleeve on first thread segment of screw-type bar; The left end of screw-type bar is with first axle sleeve; First axle sleeve is connected with first motor fixed plate, and first threaded sleeve and first supports backing plate and is connected, and is connected with first spur gear on the main shaft of first hydraulic motor; Be connected with second spur gear on the screw-type bar; First motor fixed plate and first supports between the backing plate and is provided with the 3rd spur gear, and first spur gear and second spur gear all mesh with the 3rd spur gear, and the second Mould of Automatic Separating for Thread mechanism comprises that second supports backing plate, second motor fixed plate, back-up block, rotating shaft, second hydraulic motor and be used for the intermediate bar of the moulding second screw thread shrinkage pool, outer loop bar and screw shell; Second supports backing plate, second motor fixed plate and back-up block is connected in turn between cushion block and the Bottom clamp plate; Second hydraulic motor is connected with second motor fixed plate, and outer loop bar is enclosed within on the intermediate bar, on the screw shell cover its external sleeve bar; Intermediate bar all is connected with Bottom clamp plate with outer loop bar; Screw shell upper end is provided with the second moulding screw thread, and screw shell is provided with second thread segment, and screw shell, intermediate bar, outer loop bar all are inserted in the second moulding screw thread on the mavable module core and on the screw shell, the upper end of intermediate bar, the upper end of outer loop bar and are positioned at die cavity; Be rotary with second threaded sleeve on second thread segment of screw shell; The lower end of screw shell is with second axle sleeve, and second axle sleeve is connected with second motor fixed plate, and second threaded sleeve is connected with moving platen; Be connected with first sprocket wheel on the main shaft of second hydraulic motor; Be connected with the 4th spur gear on the screw shell, rotating shaft is rotating to be connected on the second support backing plate and second motor fixed plate, is connected with second sprocket wheel and the 5th spur gear in the rotating shaft; The 5th spur gear and the engagement of the 4th spur gear connect through chain between first sprocket wheel and second sprocket wheel.
Hexagonal valve body injection mold of the present invention, wherein, push pedal is provided with top rod extension bar, and the bottom of top rod extension bar is passed second successively and is supported backing plate, second motor fixed plate and Bottom clamp plate.
Hexagonal valve body injection mold of the present invention, wherein, first motor fixed plate is provided with first travel switch that is used to control threaded rod displacement, and back-up block is provided with second travel switch that is used to control screw shell displacement.
After adopting above structure, compared with prior art, hexagonal valve body injection mold of the present invention has the following advantages: during the demoulding; Drive the screw-type bar through first hydraulic motor and in first threaded sleeve, rotate, the screw-type bar can move axially to the outer in first threaded sleeve simultaneously, and the first moulding screw thread on the screw-type bar is screwed out in the first screw thread shrinkage pool; Drive screw shell through second hydraulic motor simultaneously and in second threaded sleeve, rotate, screw shell can move axially to the lower edge in second threaded sleeve simultaneously, and the second moulding screw thread on the screw shell is screwed out in the second screw thread shrinkage pool; Realized automatic demoulding; Efficient is higher, simultaneously, and the optional demoulding of hexagonal valve body injection mold of the present invention; Can not damage thread, guarantee precision.
The effect of top rod extension bar is: after die sinking, can promote push pedal easily through extension bar, final moving up through push pedal released the plastic product hexagonal valve body of moulding in mavable module core.
The effect of first travel switch and second travel switch is respectively: when threaded rod is run into first travel switch; The signal that provides through first travel switch can be controlled first hydraulic motor and stop operating; When screw shell was run into second travel switch, the signal that provides through second travel switch can be controlled second hydraulic motor and stop operating.
Description of drawings:
Fig. 1 is that the master of hexagonal valve body injection mold of the present invention looks and partly cuts open structural representation;
Fig. 2 is the plan structure sketch map of Fig. 1;
Fig. 3 is that the right side of Fig. 1 is looked and partly cutd open structural representation;
Fig. 4 is the perspective view of plastic product hexagonal valve body.
The specific embodiment:
Below in conjunction with the accompanying drawing and the specific embodiment hexagonal valve body injection mold of the present invention is done further explain:
Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, in this specific embodiment, hexagonal valve body injection mold of the present invention comprises solid plate 3, moving platen 4, top clamping plate 1, Bottom clamp plate 9, cushion block 5, push pedal 30, scraping wings 2, push pedal fixed head 29, cover half benevolence 22, mavable module core 21 and is used for the first Mould of Automatic Separating for Thread mechanism of the moulding first screw thread shrinkage pool 102 and is used for the second Mould of Automatic Separating for Thread mechanism of the moulding second screw thread shrinkage pool 103; Being provided with screw-type bar 14, the first that die cavity 40, the first Mould of Automatic Separating for Thread mechanisms that are used for moulding hexagonal valve body 101 comprise that specifically first motor fixed plate 16, first supports backing plate 19, first hydraulic motor 12 and is used for the moulding first screw thread shrinkage pool 102 between cover half benevolence 22 and the mavable module core 21 supports backing plates 19 and moving platen 4 and is connected through screw; First motor fixed plate 16 and first supports backing plate 19 and is connected through screw, and first hydraulic motor 12 is connected through screw with first motor fixed plate 16, and the right-hand member of screw-type bar 14 is provided with the first moulding screw thread 41 that is used for the moulding first screw thread shrinkage pool 102; Screw-type bar 14 is provided with first thread segment 20, and the right-hand member of screw-type bar 14 is positioned at die cavity 40 at the first moulding screw thread 41 between cover half benevolence 22 and the mavable module core 21 and on the screw-type bar 14, is rotary with first threaded sleeve 18 on first thread segment 20 of screw-type bar 14; The left end of screw-type bar 14 is with first axle sleeve, 15, the first axle sleeves 15 and is connected with first motor fixed plate 16, and first threaded sleeve 18 and first supports backing plate 19 and is connected; Be connected with first spur gear 11 through flat key on the main shaft of first hydraulic motor 12, be connected with second spur gear, 17, the first motor fixed plates 16 and first through flat key on the screw-type bar 14 and support between the backing plate 19 and be provided with the 3rd spur gear 23; First spur gear 11 and second spur gear 17 all with the engagement of the 3rd spur gear 23, the second Mould of Automatic Separating for Thread mechanism comprises that second intermediate bar 26, outer loop bar 27 and the screw shell 28, the second that support backing plate 6, second motor fixed plate 7, back-up block 8, rotating shaft 35, second hydraulic motor 39 and be used for the moulding second screw thread shrinkage pool 103 supports backing plates 6, second motor fixed plate 7 and back-up block 8 and be connected in turn between cushion block 5 and the Bottom clamp plate 9; Second hydraulic motor 39 is connected with second motor fixed plate 7 through screw; Outer loop bar 27 is enclosed within on the intermediate bar 26, and on the screw shell 28 cover its external sleeve bars 27, intermediate bar 26 all is connected with Bottom clamp plate 9 with outer loop bar 27; Screw shell 28 upper ends are provided with the second moulding screw thread 42; Screw shell 28 is provided with second thread segment 24, and screw shell 28, intermediate bar 26, outer loop bar 27 all are inserted in the second moulding screw thread 42 on the mavable module core 21 and on the screw shell 28, the upper end of intermediate bar 26, the upper end of outer loop bar 27 and are positioned at die cavity 40, are rotary with second threaded sleeve 25 on second thread segment 24 of screw shell 28; The lower end of screw shell 28 is with second axle sleeve 33; Second axle sleeve 33 is connected with second motor fixed plate 7, and second threaded sleeve 25 is connected with moving platen 4, is connected with first sprocket wheel 38 on the main shaft of second hydraulic motor 39; Be connected with the 4th spur gear 31 on the screw shell 28; Rotating shaft 35 rotating being connected on the second support backing plate 6 and second motor fixed plate 7 are connected with second sprocket wheel 34 and the 5th spur gear 36, the five spur gears 36 and 31 engagements of the 4th spur gear in the rotating shaft 35; Connect through chain 37 between first sprocket wheel 38 and second sprocket wheel 34; Push pedal 30 is provided with top rod extension bar 32, and the bottom of top rod extension bar 32 is passed second successively and supported backing plate 6, the second motor fixed plates 7 and Bottom clamp plate 9; First motor fixed plate is provided with first travel switch 13 that is used to control threaded rod displacement, and back-up block 8 is provided with second travel switch 10 that is used to control screw shell 28 displacements.
The demoulding principle of hexagonal valve body injection mold of the present invention is, the rotation through first hydraulic motor 12 drives first spur gear 11 and rotates, and first spur gear 11 rotates and drives the 3rd spur gear 23 and rotate; The 3rd spur gear 23 rotates and drives second spur gear 17 and rotate, and second spur gear 17 rotates and drives screw-type bars 14 and first threaded sleeve 18 in, rotate, simultaneously screw-type bar 14 can be first threaded sleeve 18 in to outside axial mobile; After screw-type bar 14 is run into first travel switch 13; First hydraulic motor 12 stops operating, and the first moulding screw thread 41 on the screw-type bar 14 is screwed out in the first screw thread shrinkage pool 102, and the rotation through second hydraulic motor 39 simultaneously drives 38 rotations of first sprocket wheel; The rotation of first sprocket wheel 38 drives second sprocket wheel 34 through chain 37 and rotates; The rotation of second sprocket wheel 34 drives the 5th spur gear 36 through rotating shaft 35 and rotates, and the rotation of the 5th spur gear 36 drives the 4th spur gear 31 and rotates, and screw shell 28 is rotated in second threaded sleeve 25; Screw shell 28 can be to axially moving down in second threaded sleeve 25 simultaneously; After screw shell 28 was run into second travel switch 10, second hydraulic motor 39 stopped operating, and the second moulding screw thread 42 on the screw shell 28 is screwed out in the second screw thread shrinkage pool 103; At this moment; Separate between moving platen 4 and the solid plate 3, through promoting top rod extension bar 32 the push pedal 30 plastic product hexagonal valve body 101 that moves up is released again, realize the demoulding of hexagonal valve body 101.
Above-described embodiment describes preferred implementation of the present invention; Be not that scope of the present invention is limited; Design under the prerequisite of spirit not breaking away from the present invention; Various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (3)
1. a hexagonal valve body injection mold comprises solid plate (3), moving platen (4), top clamping plate (1), Bottom clamp plate (9), cushion block (5), push pedal (30), scraping wings (2), push pedal fixed head (29), cover half benevolence (22) and mavable module core (21), is provided with the die cavity (40) that is used for moulding hexagonal valve body (101) between said cover half benevolence (22) and the mavable module core (21); It is characterized in that: also comprise first Mould of Automatic Separating for Thread mechanism that is used for the moulding first screw thread shrinkage pool (102) and the second Mould of Automatic Separating for Thread mechanism that is used for the moulding second screw thread shrinkage pool (103), the said first Mould of Automatic Separating for Thread mechanism comprises the screw-type bar (14) that first motor fixed plate (16), first supports backing plate (19), first hydraulic motor (12) and is used for the moulding first screw thread shrinkage pool (102), and said first supports backing plate (19) is connected with moving platen (4); Said first motor fixed plate (16) and first supports backing plate (19) and is connected; Said first hydraulic motor (12) is connected with first motor fixed plate (16), and the right-hand member of said screw-type bar (14) is provided with the first moulding screw thread (41) that is used for the moulding first screw thread shrinkage pool (102), and said screw-type bar (14) is provided with first thread segment (20); The first moulding screw thread (41) that the right-hand member of said screw-type bar (14) is positioned between cover half benevolence (22) and the mavable module core (21) and on the screw-type bar (14) is positioned at die cavity (40); Be rotary with first threaded sleeve (18) on first thread segment (20) of said screw-type bar (14), the left end of said screw-type bar (14) is with first axle sleeve (15), and said first axle sleeve (15) is connected with first motor fixed plate (16); Said first threaded sleeve (18) and first supports backing plate (19) and is connected; Be connected with first spur gear (11) on the main shaft of said first hydraulic motor (12), be connected with second spur gear (17) on the said screw-type bar (14), said first motor fixed plate (16) and first supports between the backing plate (19) and is provided with the 3rd spur gear (23); Said first spur gear (11) and second spur gear (17) all mesh with the 3rd spur gear (23); The said second Mould of Automatic Separating for Thread mechanism comprises the second support backing plate (6), second motor fixed plate (7), back-up block (8), rotating shaft (35), second hydraulic motor (39) and the intermediate bar (26), outer loop bar (27) and the screw shell (28) that are used for the moulding second screw thread shrinkage pool (103), and said second supports backing plate (6), second motor fixed plate (7) and back-up block (8) is connected in turn between cushion block (5) and the Bottom clamp plate (9), and said second hydraulic motor (39) is connected with second motor fixed plate (7); Said outer loop bar (27) is enclosed within on the intermediate bar (26); On said screw shell (28) the cover its external sleeve bar (27), said intermediate bar (26) all is connected with Bottom clamp plate (9) with outer loop bar (27), and said screw shell (28) upper end is provided with the second moulding screw thread (42); Said screw shell (28) is provided with second thread segment (24); Said screw shell (28), intermediate bar (26), outer loop bar (27) be inserted in all that mavable module core (21) is gone up and screw shell (28) on the second moulding screw thread (42), the upper end of intermediate bar (26), the upper end of outer loop bar (27) be positioned at die cavity (40), be rotary with second threaded sleeve (25) on second thread segment (24) of said screw shell (28), the lower end of said screw shell (28) is with second axle sleeve (33); Said second axle sleeve (33) is connected with second motor fixed plate (7); Said second threaded sleeve (25) is connected with moving platen (4), is connected with first sprocket wheel (38) on the main shaft of said second hydraulic motor (39), is connected with the 4th spur gear (31) on the said screw shell (28); Said rotating shaft (35) is rotating to be connected on the second support backing plate (6) and second motor fixed plate (7); Be connected with second sprocket wheel (34) and the 5th spur gear (36) in the said rotating shaft (35), said the 5th spur gear (36) and the 4th spur gear (31) engagement connect through chain (37) between said first sprocket wheel (38) and second sprocket wheel (34).
2. hexagonal valve body injection mold according to claim 1; It is characterized in that: said push pedal (30) is provided with top rod extension bar (32); The bottom of said top rod extension bar (32) is passed second successively and is supported backing plate (6), second motor fixed plate (7) and Bottom clamp plate (9).
3. hexagonal valve body injection mold according to claim 1 and 2; It is characterized in that: said first motor fixed plate is provided with first travel switch (13) that is used to control threaded rod displacement, and said back-up block (8) is provided with second travel switch (10) that is used to control screw shell (28) displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241322.6A CN102744836B (en) | 2012-07-12 | 2012-07-12 | Injection molding die of hexagonal valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241322.6A CN102744836B (en) | 2012-07-12 | 2012-07-12 | Injection molding die of hexagonal valve body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744836A true CN102744836A (en) | 2012-10-24 |
| CN102744836B CN102744836B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210241322.6A Expired - Fee Related CN102744836B (en) | 2012-07-12 | 2012-07-12 | Injection molding die of hexagonal valve body |
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| CN (1) | CN102744836B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500623A (en) * | 2015-12-30 | 2016-04-20 | 优力精密塑胶（苏州工业园区）有限公司 | Front mold thread core pulling mold and machining method thereof |
| CN108437375A (en) * | 2018-03-12 | 2018-08-24 | 苏州经贸职业技术学院 | Screw releases rotation stripping mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0217249A2 (en) * | 1985-09-21 | 1987-04-08 | Drilltec Patents & Technologies Company, Inc. | Method and apparatus for the injection moulding of covers and stoppers of plastic material provided with a screw thread, whereby the covers and stoppers are or are not with a reinforcing cage embedded in the plastic material |
| JPH04113820A (en) * | 1990-09-04 | 1992-04-15 | Kata Syst:Kk | Mold for product with screw |
| US5798074A (en) * | 1993-09-27 | 1998-08-25 | Husky Injection Molding Systems Ltd. | Process for forming a threaded molded plastic article |
| CN1583395A (en) * | 2004-05-25 | 2005-02-23 | 何同安 | Automatic demoulding device with thread plastic piece in injection mould |
| CN101407103A (en) * | 2008-11-15 | 2009-04-15 | 顺德职业技术学院 | Injection mould servo synchronous automatic thread demoulding mechanism and control method thereof |
| CN201329659Y (en) * | 2009-01-06 | 2009-10-21 | 宁海县大鹏模具塑料有限公司 | Injection mold dynamic and fixed mould bidirectional helical ejection mechanism |
| CN202293239U (en) * | 2011-10-26 | 2012-07-04 | 中山市恒滨塑胶模具有限公司 | Thread demoulding device and injection molding mould with same |
| CN202668900U (en) * | 2012-07-12 | 2013-01-16 | 宁波金氏实业有限公司 | Hexagon valve body injection mold |
-
2012
- 2012-07-12 CN CN201210241322.6A patent/CN102744836B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0217249A2 (en) * | 1985-09-21 | 1987-04-08 | Drilltec Patents & Technologies Company, Inc. | Method and apparatus for the injection moulding of covers and stoppers of plastic material provided with a screw thread, whereby the covers and stoppers are or are not with a reinforcing cage embedded in the plastic material |
| JPH04113820A (en) * | 1990-09-04 | 1992-04-15 | Kata Syst:Kk | Mold for product with screw |
| US5798074A (en) * | 1993-09-27 | 1998-08-25 | Husky Injection Molding Systems Ltd. | Process for forming a threaded molded plastic article |
| CN1583395A (en) * | 2004-05-25 | 2005-02-23 | 何同安 | Automatic demoulding device with thread plastic piece in injection mould |
| CN101407103A (en) * | 2008-11-15 | 2009-04-15 | 顺德职业技术学院 | Injection mould servo synchronous automatic thread demoulding mechanism and control method thereof |
| CN201329659Y (en) * | 2009-01-06 | 2009-10-21 | 宁海县大鹏模具塑料有限公司 | Injection mold dynamic and fixed mould bidirectional helical ejection mechanism |
| CN202293239U (en) * | 2011-10-26 | 2012-07-04 | 中山市恒滨塑胶模具有限公司 | Thread demoulding device and injection molding mould with same |
| CN202668900U (en) * | 2012-07-12 | 2013-01-16 | 宁波金氏实业有限公司 | Hexagon valve body injection mold |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500623A (en) * | 2015-12-30 | 2016-04-20 | 优力精密塑胶（苏州工业园区）有限公司 | Front mold thread core pulling mold and machining method thereof |
| CN108437375A (en) * | 2018-03-12 | 2018-08-24 | 苏州经贸职业技术学院 | Screw releases rotation stripping mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744836B (en) | 2014-05-28 |
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