CN210705846U - Precise worm multi-cavity linkage demolding injection mold - Google Patents
Precise worm multi-cavity linkage demolding injection mold Download PDFInfo
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- CN210705846U CN210705846U CN201920718942.1U CN201920718942U CN210705846U CN 210705846 U CN210705846 U CN 210705846U CN 201920718942 U CN201920718942 U CN 201920718942U CN 210705846 U CN210705846 U CN 210705846U
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Abstract
The utility model relates to an accurate worm multicavity room linkage drawing of patterns type injection mold, include: the worm molding device comprises an upper die and a lower die, wherein a plurality of movable inserts for molding a worm are arranged between the upper die and the lower die, molding die cavities are arranged in the movable inserts, injection molding material heads matched with the movable inserts and used for injecting plastic are arranged on the upper die, a top hole is formed in the bottom of the lower die, and an ejection cavity communicated with the top hole is arranged in the lower die; a linkage mechanism, the linkage mechanism comprising: the driving mechanism comprises a driving screw rod, a screw rod seat, a driving gear, a driving sleeve and a linkage gear set which is borne on the driving sleeve and is in meshing transmission with the driving gear; and, a demolding mechanism, the demolding mechanism comprising: the ejector comprises a top plate, an ejector pin and an ejector sleeve. Because the motor control is not needed during demoulding, the threads of the worms are synchronously screwed out in the process of separating the upper die, the demoulding precision is improved, the demoulding of a plurality of worms can be synchronously realized, and the demoulding efficiency is improved.
Description
Technical Field
The utility model relates to an injection mold technical field, in particular to accurate worm multicavity room linkage drawing of patterns type injection mold.
Background
As shown in fig. 1, the size of the worm for telescopic camera lens is small, the precision requirement is high, and the worm is not suitable for processing in the form of forming a forming die cavity by closing the upper die and the lower die in the prior art, because die marks can be left on the surface of the product in the forming mode, the performance of the product is affected, the forming die cavity of the integrated type is required to be adopted for injection molding, the worm core is required to rotate to separate the product during demolding, the existing demolding mode generally adopts a motor driving mode to drive the worm core to rotate, and the requirement of high precision cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an accurate worm multicavity room linkage drawing of patterns type injection mold improves the advantage of drawing of patterns precision.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a precision worm multi-chamber linkage drawing of patterns type injection mold, includes:
the worm molding device comprises an upper die and a lower die, wherein a plurality of movable inserts for molding worms are arranged between the upper die and the lower die, molding die cavities are arranged in the movable inserts, injection molding material heads matched with the movable inserts and used for injecting plastic are arranged on the upper die, a top hole is formed in the bottom of the lower die, and an ejection cavity communicated with the top hole is arranged in the lower die;
bear in go up the mould and be used for the drive the link gear that the worm that movable mold insert and shaping were accomplished breaks away from, link gear includes: the movable insert is rotatably assembled on the upper die, and comprises a driving lead screw rotatably assembled on the upper die, a lead screw seat clamped on the upper die and in threaded connection with the driving lead screw, a driving gear fixed on the driving lead screw, a driving sleeve rotatably assembled on the upper die and in sliding connection with the movable insert, and a linkage gear set borne on the driving sleeve and in meshing transmission with the driving gear; and the number of the first and second groups,
bear in the lower mould, be used for ejecting demoulding mechanism with the worm, demoulding mechanism includes: the ejector mechanism comprises a lower die, an ejector pin, an ejector driver barrel and an ejector pin, wherein the ejector pin is slidably assembled on the lower die and located on a top plate in an ejection cavity, the ejector pin is borne on the lower die and extends into the molding cavity to form an inner cavity of a worm and limit the rotation of the worm, the ejector driver barrel is borne on the lower die and is slidably sleeved on the ejector pin, and the upper end face of the ejector driver barrel is flush with the bottom of the worm.
According to the technical scheme, in a die assembly state, a forming die cavity, a thimble and an ejection ejector sleeve surround together to form a space consistent with a worm, and plastic is injected into the forming die cavity through a plastic injection head to form a product; when in demoulding, the upper die moves upwards to drive the stub bar to be separated from the movable insert, then the screw rod seat is driven to move upwards, the screw rod seat is in threaded connection with the driving cylinder, so that the screw rod seat can synchronously drive the driving screw rod to rotate in the ascending process, the driving screw rod synchronously drives the driving gear to rotate at the moment, the driving sleeve is driven to synchronously rotate through the linkage gear set, the movable insert and the worm are further driven to relatively rotate, the movable insert is connected with the driving sleeve in a sliding mode, the worm keeps in a static state under the limitation of the thimble, so that the movable insert can synchronously move upwards in the rotating process until the movable insert is separated from the worm, then the upper die is separated from the lower die, the top plate is driven to move upwards through the oil cylinder, the worm is lifted upwards through; because the motor control is not needed during demoulding, the threads of the worms are synchronously screwed out in the process of separating the upper die, the demoulding precision is improved, the demoulding of a plurality of worms can be synchronously realized, and the demoulding efficiency is improved.
As an optimized scheme of the utility model, go up the mould and include: the device comprises a first template for driving the plastic injection head to move upwards, a second template for driving the screw rod seat to move upwards and a third template for driving the linkage mechanism to move upwards, wherein the screw rod seat is fixedly clamped on the second template.
According to the technical scheme, when the mold is opened, the first template moves upwards to drive the injection molding material head to be separated from the movable insert, then the second template moves upwards to drive the screw rod seat to move upwards synchronously, the driving screw rod rotates, the movable insert moves upwards in the rotating process to be separated from the worm, finally the third template moves upwards to separate the worm from the upper mold, and the worm can be ejected out through the demolding mechanism.
As a preferred scheme of the utility model, movable mold insert is located the top of shaping die cavity be equipped with the head looks adaptation of injection plastics support and push away the hole, the overhead pressure step that is used for supporting pushing away movable mold insert that is equipped with of injection molding material.
According to the technical scheme, the sealing performance of the injection molding material head capable of being combined with the movable insert is better, and the movable insert is conveniently pushed to reset.
As a preferred aspect of the present invention, the linkage gear set includes: be fixed in each the first linkage gear of driving sleeve to and, the rotary type assemble in go up the mould and with drive gear with the second linkage gear that first linkage gear meshed mutually.
According to the technical scheme, the second linkage gear is used as a middle transmission piece, so that synchronous rotation of the driving gear and the first linkage gear is realized, and the arrangement space of the movable inserts is larger.
As a preferred aspect of the present invention, the driving sleeve includes: the movable mold insert is connected with the ball guide sleeve in a sliding mode.
According to the technical scheme, the ball bearing guide sleeve is connected with the movable insert, so that the fixed movable insert can synchronously rotate with the transmission shaft and is driven by the thread of the worm to move upwards until the movable insert is separated from the worm.
As an optimal scheme of the utility model, the lower part that lies in the worm on the thimble is equipped with prismatic.
According to the technical scheme, the worm is limited through the prism, so that the worm keeps in a static state in the rotating process of the movable insert.
As a preferred scheme of the utility model, movable mold insert is equipped with two sets of that the symmetry set up, and every group's movable mold insert includes two of parallel arrangement, second linkage gear symmetry is provided with two, every second linkage gear and two with a set of movable mold insert homogeneous phase meshing.
To sum up, the utility model discloses following beneficial effect has:
under the die closing state, the molding die cavity, the ejector pin and the ejector sleeve surround together to form a space consistent with the worm, and plastic is injected into the molding die cavity through the plastic injection head to mold a product; when in demoulding, the upper die moves upwards to drive the stub bar to be separated from the movable insert, then the screw rod seat is driven to move upwards, the screw rod seat is in threaded connection with the driving cylinder, so that the screw rod seat can synchronously drive the driving screw rod to rotate in the ascending process, the driving screw rod synchronously drives the driving gear to rotate at the moment, the driving sleeve is driven to synchronously rotate through the linkage gear set, the movable insert and the worm are further driven to relatively rotate, the movable insert is connected with the driving sleeve in a sliding mode, the worm keeps in a static state under the limitation of the thimble, so that the movable insert can synchronously move upwards in the rotating process until the movable insert is separated from the worm, then the upper die is separated from the lower die, the top plate is driven to move upwards through the oil cylinder, the worm is lifted upwards through; because the motor control is not needed during demoulding, the threads of the worms are synchronously screwed out in the process of separating the upper die, the demoulding precision is improved, the demoulding of a plurality of worms can be synchronously realized, and the demoulding efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the worm to be processed according to the present invention.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a of fig. 2.
Fig. 4 is a schematic structural diagram of a linkage mechanism according to an embodiment of the present invention.
Fig. 5 is a cross-sectional view of a linkage mechanism according to an embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. an upper die; 11. injecting a plastic head; 111. pressing the step; 12. a first template; 13. a second template; 14. a third template; 2. a lower die; 21. a top hole; 22. ejecting the cavity; 3. a movable insert; 31. Molding a mold cavity; 32. pushing the hole; 4. a linkage mechanism; 41. driving a lead screw; 42. a lead screw seat; 43. A drive gear; 44. a drive sleeve; 441. a drive shaft; 442. a ball guide sleeve; 45. a linkage gear set; 451. a first linkage gear; 452. a second linkage gear; 5. a demolding mechanism; 51. a top plate; 52. A thimble; 521. a prism; 53. and ejecting the ejector sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
A precision worm multi-cavity linkage demolding type injection mold, as shown in fig. 2 to 4, comprising: the worm molding machine comprises an upper die 1 and a lower die 2, wherein a plurality of movable inserts 3 used for molding worms are arranged between the upper die 1 and the lower die 2, molding cavities 31 are arranged in the movable inserts 3, injection molding material heads 11 matched with the movable inserts 3 and used for injecting plastic are arranged on the upper die 1, top holes 21 are formed in the bottom of the lower die 2, and ejection cavities 22 communicated with the top holes 21 are arranged in the lower die 2; a linkage mechanism 4 which is born on the upper die 1 and used for driving the movable insert 3 to be separated from the formed worm; and a stripper mechanism 5 supported by the lower die 2 and ejecting the worm.
Specifically, the link mechanism 4 includes: the movable insert is provided with a driving screw 41 rotatably assembled on the upper die 1, a screw seat 42 clamped on the upper die 1 and connected with the driving screw 41 by screw thread, a driving gear 43 fixed on the driving screw 41, a driving sleeve 44 rotatably assembled on the upper die 1 and connected with the movable insert 3 in a sliding way, and a linkage gear set 45 borne on the driving sleeve 44 and in meshing transmission with the driving gear 43.
The upper die 1 includes: the injection molding machine comprises a first template 12 for driving a plastic injection head 11 to move upwards, a second template 13 for driving a screw rod seat 42 to move upwards and a third template 14 for driving a linkage mechanism 4 to move upwards, wherein the plastic injection head 11 is locked and fixed on the first template 12, and the screw rod seat 42 is clamped and embedded and fixed on the second template.
The drive sleeve 44 includes: the movable insert 3 is connected with the ball guide sleeve 442 in a sliding manner and is connected with the movable insert 3 through the ball guide sleeve 442, so that the fixed movable insert 3 can rotate synchronously with the transmission shaft 441 and is driven by the thread of the worm to move upwards until the movable insert 3 is separated from the worm.
Meanwhile, a pushing hole 32 matched with the injection molding stub bar 11 is formed above the molding cavity 31 of the movable insert, and a pushing step 111 used for pushing the movable insert 3 is formed in the injection molding stub bar 11, so that the sealing performance of the injection molding stub bar 11 capable of being combined with the movable insert 3 is better, and the movable insert 3 is conveniently pushed to reset.
The linked gear set 45 includes: a first interlocking gear 451 fixed to each driving sleeve 44, and a second interlocking gear 452 rotatably fitted to the upper die 1 and engaged with the driving gear 43 and the first interlocking gear 451; the first linkage gear 451 is fixedly sleeved on the transmission shaft 441, and the second linkage gear 452 serves as a middle transmission piece to realize synchronous rotation of the driving gear 43 and the first linkage gear 451 and enable the arrangement space of the movable inserts 3 to be larger; in this embodiment, two sets of movable inserts 3 are symmetrically arranged, each set of movable inserts 3 includes two movable inserts 3 arranged in parallel, two second linkage gears 452 are symmetrically arranged, each second linkage gear 452 is engaged with the two movable inserts 3 in the same set, and the sizes of the driving gear 43, the first linkage gear 451, and the second linkage gear 452 are specifically determined according to the size of the worm.
The mold releasing mechanism 5 includes: the ejection mechanism comprises a top plate 51 which is assembled on the lower die 2 in a sliding manner and is positioned in the ejection cavity 22, an ejector pin 52 which is borne on the lower die 2 and extends into the molding die cavity 31 to mold the inner cavity of the worm and limit the rotation of the worm, and an ejection ejector sleeve 53 which is borne on the lower die 2 and is sleeved on the ejector pin 52 in a sliding manner, wherein the upper end surface of the ejection sleeve 53 is flush with the bottom of the worm; the upper portion of the thimble 52 located at the lower portion of the worm is provided with a prism 521, correspondingly, a prism hole is formed at the lower portion of the inner cavity of the worm, and the prism 521 limits the worm, so that the worm keeps a static state in the rotating process of the movable insert 3.
In a matched die state, the molding die cavity 31, the ejector pin 52 and the ejector sleeve 53 jointly surround to form a space consistent with the worm, and plastic is injected into the molding die cavity 31 through the injection molding head 11 to mold a product; when demoulding, firstly, the first template 12 moves upwards to drive the plastic injection head 11 to separate from the movable insert 3, namely the PL1 parting surface in the figure is separated, then the second template 13 moves upwards to drive the screw rod seat 42 to move upwards synchronously, namely the PL2 parting surface in the figure is separated, because the screw rod seat 42 is in threaded connection with the driving cylinder, the screw rod seat 42 can synchronously drive the driving screw rod 41 to rotate in the process of ascending of the screw rod seat 42, at the moment, the driving screw rod 41 synchronously drives the driving gear 43 to rotate, and drives the driving sleeve 44 to rotate synchronously through the linkage gear set 45, so as to drive the movable insert 3 and the worm to rotate relatively, because the movable insert 3 is in sliding connection with the driving sleeve 44, the worm keeps a static state under the limitation of the thimble 52, therefore, the movable insert 3 can move upwards synchronously until the movable insert is separated from the worm in the process of rotating, and finally, the third template 14 moves upwards to separate the upper die 1 from the lower die, the top plate 51 is driven to move upwards through the oil cylinder, the worm is jacked upwards by the ejector sleeve and separated from the thimble 52, and the demolding process is completed; because the motor control is not needed during demoulding, the threads of the worms are synchronously screwed out in the process of separating the upper die 1, the demoulding precision is improved, the demoulding of a plurality of worms can be synchronously realized, and the demoulding efficiency is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a precision worm multicavity room linkage drawing of patterns type injection mold which characterized in that includes:
the worm molding device comprises an upper die and a lower die, wherein a plurality of movable inserts for molding worms are arranged between the upper die and the lower die, molding die cavities are arranged in the movable inserts, injection molding material heads matched with the movable inserts and used for injecting plastic are arranged on the upper die, a top hole is formed in the bottom of the lower die, and an ejection cavity communicated with the top hole is arranged in the lower die;
bear in go up the mould and be used for the drive the link gear that the worm that movable mold insert and shaping were accomplished breaks away from, link gear includes: the movable insert is rotatably assembled on the upper die, and comprises a driving lead screw rotatably assembled on the upper die, a lead screw seat clamped on the upper die and in threaded connection with the driving lead screw, a driving gear fixed on the driving lead screw, a driving sleeve rotatably assembled on the upper die and in sliding connection with the movable insert, and a linkage gear set borne on the driving sleeve and in meshing transmission with the driving gear; and the number of the first and second groups,
bear in the lower mould, be used for ejecting demoulding mechanism with the worm, demoulding mechanism includes: the ejector mechanism comprises a lower die, an ejector pin, an ejector driver barrel and an ejector pin, wherein the ejector pin is slidably assembled on the lower die and located on a top plate in an ejection cavity, the ejector pin is borne on the lower die and extends into the molding cavity to form an inner cavity of a worm and limit the rotation of the worm, the ejector driver barrel is borne on the lower die and is slidably sleeved on the ejector pin, and the upper end face of the ejector driver barrel is flush with the bottom of the worm.
2. The precision worm multi-cavity linkage demolding type injection mold according to claim 1, wherein the upper mold comprises: the device comprises a first template for driving the plastic injection head to move upwards, a second template for driving the screw rod seat to move upwards and a third template for driving the linkage mechanism to move upwards, wherein the screw rod seat is fixedly clamped on the second template.
3. The precise worm multi-cavity linkage demolding type injection mold as claimed in claim 2, wherein the movable insert is provided with a pushing hole matched with the injection molding head above the molding mold cavity, and the injection molding head is provided with a pressing step for pushing the movable insert.
4. The precision worm multi-cavity linkage demolding type injection mold according to claim 3, wherein the linkage gear set includes: be fixed in each the first linkage gear of driving sleeve to and, the rotary type assemble in go up the mould and with drive gear with the second linkage gear that first linkage gear meshed mutually.
5. The precision worm multi-cavity linkage demolding type injection mold according to claim 4, wherein the driving sleeve comprises: the movable mold insert is connected with the ball guide sleeve in a sliding mode.
6. The precision worm multi-cavity linkage demolding type injection mold according to claim 5, wherein a prism is arranged on the lower portion, located on the worm, of the ejector pin.
7. The precision worm multi-cavity linkage demolding type injection mold according to claim 4, wherein the movable inserts are provided in two groups which are symmetrically arranged, each group of the movable inserts comprises two movable inserts which are arranged in parallel, the second linkage gears are symmetrically arranged in two, and each second linkage gear is meshed with two movable inserts of the same group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718942.1U CN210705846U (en) | 2019-05-20 | 2019-05-20 | Precise worm multi-cavity linkage demolding injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718942.1U CN210705846U (en) | 2019-05-20 | 2019-05-20 | Precise worm multi-cavity linkage demolding injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN210705846U true CN210705846U (en) | 2020-06-09 |
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| CN201920718942.1U Active CN210705846U (en) | 2019-05-20 | 2019-05-20 | Precise worm multi-cavity linkage demolding injection mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056442A (en) * | 2022-07-01 | 2022-09-16 | 运怡（北京）医疗器械有限公司 | Demoulding device and demoulding method of PEEK gear injection mould |
| CN115401882A (en) * | 2022-10-28 | 2022-11-29 | 宁波双林模具有限公司 | Demoulding mechanism |
-
2019
- 2019-05-20 CN CN201920718942.1U patent/CN210705846U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115056442A (en) * | 2022-07-01 | 2022-09-16 | 运怡（北京）医疗器械有限公司 | Demoulding device and demoulding method of PEEK gear injection mould |
| CN115056442B (en) * | 2022-07-01 | 2024-03-12 | 运怡（北京）医疗器械有限公司 | Demolding device and demolding method for PEEK gear injection mold |
| CN115401882A (en) * | 2022-10-28 | 2022-11-29 | 宁波双林模具有限公司 | Demoulding mechanism |
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