CN216465959U - Core pulling mechanism of plastic mold - Google Patents

Core pulling mechanism of plastic mold Download PDF

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Publication number
CN216465959U
CN216465959U CN202123127109.6U CN202123127109U CN216465959U CN 216465959 U CN216465959 U CN 216465959U CN 202123127109 U CN202123127109 U CN 202123127109U CN 216465959 U CN216465959 U CN 216465959U
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cavity
core
ejector
plate
groove
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CN202123127109.6U
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Chinese (zh)
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王科峰
张静
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Dongguan Chengde Plastic Hardware Mould Co ltd
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Dongguan Chengde Plastic Hardware Mould Co ltd
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Abstract

The utility model discloses a mechanism of loosing core of moulding establishes on the movable mould, and die cavity on the movable mould benevolence includes first cavity and second cavity, establishes the first device of loosing core in the first cavity, the second in the second cavity device of loosing core. The utility model discloses a set up two die cavities in the shaping chamber of every plastic part, and match respectively in two die cavities and set up first device and the second device of loosing core, cooperate the drawing of patterns action of movable mould, can accomplish the action of taking out in the equidirectional of a plurality of core needles and ejector pin in the synchronization of the drawing of patterns of plastic part, need not subsequent processing after the shaping of plastic part, improved production efficiency, reduced manufacturing cost; through set up thimble board, the locating piece that matches on first device of loosing core, cooperation movable mould board and take off the flitch, the relative die cavity that breaks away from of numerous core needles is realized in the drawing of patterns action of accessible movable mould board, simple structure can avoid the core needle to withdraw from the die cavity in-process to the at utmost and damage the piece of moulding, promotes and moulds a yields.

Description

Core pulling mechanism of plastic mold
Technical Field
The utility model relates to a plastic mould technical field, in particular to mechanism of loosing core that moulds.
Background
When the electric toothbrush head or the replaceable brush head is produced, because the intervals of the implanted bristle holes are dense, and the extending direction of the implanted bristle holes is different from the brush handle direction, if a plurality of mold cores are arranged on the same pair of molds, the mold cores easily damage the plastic part during mold opening, and the quality of the brush head is influenced; therefore, the brush head main body is generally formed in the production process, and then the implanted pores are machined in the brush head main body in a machining mode, so that the production process is multiple, the cost is high, and the production efficiency is difficult to improve.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model provides a mechanism of loosing core that moulds can accomplish a plurality of core needles and department's section of thick bamboo needle in the not equidirectional taking out of action in the synchronization of moulding a drawing of patterns, need not follow-up processing after moulding a shaping, has improved production efficiency, has reduced manufacturing cost, promotes and moulds a yields.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the core pulling mechanism of the mould is provided with a movable mould, the movable mould comprises a bottom plate, a stripper plate and a movable mould plate, the movable mould plate is provided with a movable mould core, the movable mould core is provided with more than one mould cavity, a limiting part is arranged between the movable mould plate and the stripper plate, and each mould cavity comprises a first cavity and a second cavity which are communicated; the core pulling mechanism is arranged on a movable die of the die and comprises a first core pulling device extending into the first cavity and a second core pulling device extending into the second cavity; wherein:
the first core pulling device comprises an ejector plate which is arranged on the stripper plate and extends along the die opening direction, the end part of the ejector plate extends into the first cavity, more than one group of core pin assemblies which are matched with the first cavity one by one are arranged on the ejector plate, each group of core pin assemblies is provided with an ejector rod, one end part of each ejector rod extends into the movable die plate, and the other end part of each ejector rod sequentially penetrates through one ejector plate, the stripper plate and the bottom plate and is in transmission connection with a first driving device; each ejector rod can extend into one first cavity under the driving of the first driving device so as to eject the plastic part out of the first cavity;
the second core pulling device comprises a sliding seat arranged on the movable mould plate, a plurality of barrel assemblies are arranged at the end part, close to the movable mould core, of the sliding seat, one end part of each barrel assembly extends into the second cavity, the other end part of each barrel assembly penetrates through the sliding seat and is in transmission connection with a second driving device arranged on the movable mould plate, and the second driving device can drive the barrel assemblies to slide relative to the sliding seat so as to enter or leave the second cavity; each ejector barrel assembly is connected with a glue inlet.
As a further elaboration of the above technical solution:
in the technical scheme, a plurality of first clamping protrusions matched with the first cavity are arranged at one end part of the ejector plate; every all be equipped with a first draw-in groove on the first card arch, every the bottom of first draw-in groove all is equipped with a first through-hole that extends along the die sinking direction, every the through-hole all with one the ejector pin adaptation.
In the above technical solution, each of the core pin assemblies includes a positioning block; one end of each positioning block is provided with a second clamping protrusion matched with the first clamping groove; a second through hole extending along the die opening direction is formed in the end part of the second clamping protrusion on each positioning block; a plurality of third through holes extending along the die opening direction are symmetrically formed in the positioning block on two sides of the second clamping protrusion; and a core needle is arranged in each third through hole in a matching manner.
In the above technical solution, each of the barrel assemblies includes a barrel needle and a barrel sleeve covering the periphery of the barrel needle: one end of each ejector pin penetrates through the sliding seat and is in transmission connection with the second driving device, and the other end of each ejector pin extends towards the second cavity; one end of each ejector sleeve is detachably and fixedly connected with the sliding seat, and a diversion trench matched with the glue inlet is formed in the side wall of each ejector sleeve.
In the technical scheme, a first groove matched with the movable mold core is formed in one end of the movable mold plate, and a second through groove matched with the ejector plate is formed in the bottom end of the first groove in the movable mold plate; a third groove matched with the sliding seat is formed in the movable template and beside the first groove; and a fourth groove matched with the ejector pin plate is formed in the stripper plate, and a plurality of fifth through holes matched with the ejector pins one by one are formed in the bottom end part of the fourth groove in the stripper plate.
Compared with the prior art, the beneficial effects of the utility model reside in that: the two cavities are arranged in the molding cavity of each plastic part, the first core-pulling device and the second core-pulling device are respectively arranged in the two cavities in a matching manner, and the demolding action of the movable mold is matched, so that the pulling-out actions of a plurality of core needles and ejector pins in different directions can be completed synchronously during the demolding of the plastic parts, the subsequent processing is not needed after the plastic parts are molded, the production efficiency is improved, and the production cost is reduced; through set up thimble board, the locating piece that matches on first device of loosing core, cooperation movable mould board and take off the flitch, the relative die cavity that breaks away from of numerous core needles is realized in the drawing of patterns action of accessible movable mould board, simple structure can avoid the core needle to withdraw from the die cavity in-process to the at utmost and damage the piece of moulding, promotes and moulds a yields.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural diagram of the present embodiment;
FIG. 3 is a schematic structural diagram of the front surface of the cavity insert in the present embodiment;
FIG. 4 is a schematic structural view of a reverse side of the cavity insert of the present embodiment;
FIG. 5 is a schematic structural view of the introducer assembly of this embodiment;
FIG. 6 is a schematic view of the structure of an ejector plate in the present embodiment;
FIG. 7 is a schematic structural diagram of a positioning block in the present embodiment;
fig. 8 is a schematic structural view of a barrel assembly in the present embodiment;
FIG. 9 is a schematic view showing the construction of the stripper plate in the present embodiment;
fig. 10 is a schematic structural view of the movable die plate in the present embodiment.
In the figure: 100. a base plate; 200. a material removing plate; 201. a fourth groove; 202. a fifth through hole; 300. moving the template; 301. a first groove; 302. a second through groove; 303. a third groove; 400. a movable mould core; 500. a cavity; 501. a first cavity; 502. a second cavity; 600. molding; 700. a second driving device; 20. a first core-pulling device; 21. an ejector plate; 22. a core pin assembly; 23. a top rod; 30. a second core-pulling device; 31. a slide base; 32. a barrel component; 1. a first snap projection; 2. a first card slot; 3. a first through hole; 4. a second snap projection; 5. a second through hole; 6. a third through hole; 7. a core needle; 8. a sleeve ejector pin; 9. a sleeve; 10. a diversion trench; 11. and (5) positioning the blocks.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
As shown in fig. 1-4, a core-pulling mechanism of a mold is provided with a movable mold, the movable mold comprises a bottom plate 100, a stripper plate 200 and a movable mold plate 300, the movable mold plate 300 is provided with a movable mold core 400, the movable mold core 400 is provided with more than one mold cavity 500, a limiting member is arranged between the movable mold plate 300 and the stripper plate 200, and each mold cavity 500 comprises a first cavity 501 and a second cavity 502 which are communicated; the core-pulling mechanism is arranged on a movable die of the die and comprises a first core-pulling device 20 extending into the first cavity 501 and a second core-pulling device 30 extending into the second cavity 502; wherein:
the first core-pulling device 20 comprises an ejector plate 21 which is arranged on the stripper plate 200 and extends along the mold opening direction, the end part of the ejector plate extends into the first cavity 501, more than one group of core pin assemblies 22 which are matched with the first cavity 501 one by one are arranged on the ejector plate 21, each group of core pin assemblies 22 is provided with an ejector rod 23, one end part of each ejector rod 23 extends into the movable mold plate 3, and the other end part of each ejector rod 23 sequentially penetrates through the ejector plate 21, the stripper plate 200 and the bottom plate 100 and is in transmission connection with a first driving device; each ejector rod 23 can extend into a first cavity 501 under the driving of the first driving device so as to eject the plastic part 600 out of the first cavity 501;
the second core-pulling device 30 comprises a sliding seat 31 arranged on the movable mould board 300, a plurality of ejector barrel assemblies 32 are arranged at the end parts, close to the movable mould core 400, of the sliding seat 31, one end part of each ejector barrel assembly 32 extends into a second cavity 502, the other end part of each ejector barrel assembly 32 penetrates through the sliding seat 31 and is in transmission connection with a second driving device 700 arranged on the movable mould board 300, and the second driving device 700 can drive the ejector barrel assemblies 32 to slide relative to the sliding seat 31 so as to enter or leave the second cavities 502; each sleeve assembly 32 is connected with a glue inlet.
As shown in fig. 6, one end of the ejector plate 21 is provided with a plurality of first clamping protrusions 1 adapted to the first cavity 501; every is equipped with a first draw-in groove 2 on the protruding 1 of first card, and the bottom of every first draw-in groove 2 all is equipped with a first through-hole 3 that extends along the die sinking direction, every first through-hole 3 all with a ejector pin 23 adaptation.
As shown in fig. 5-7, each core pin assembly 22 includes a locating block 11; one end of each positioning block 11 is provided with a second clamping protrusion 4 matched with the first clamping groove 2; a second through hole 5 extending along the die opening direction is formed in the end part of the second clamping protrusion 4 on each positioning block 11; a plurality of third through holes 6 extending along the die opening direction are symmetrically arranged on the positioning block 11 at two sides of the second clamping protrusion 4; a core needle 7 is arranged in each third through hole 6 in a matching way.
As shown in fig. 8, each of the driver barrel assemblies 32 includes a driver barrel needle 8 and a driver barrel sleeve 9 provided at the periphery thereof: one end of each slave cylinder needle 8 passes through the sliding seat 31 and is in transmission connection with a second driving device 700, and the other end extends towards the second cavity 502; one end part of each ejector sleeve 9 is detachably and fixedly connected with the sliding seat 31, and the side wall of each ejector sleeve is provided with a diversion trench 10 matched with the glue inlet.
As shown in fig. 9-10, a first groove 301 adapted to the movable mold core 400 is formed at one end of the movable mold plate 300, and a second groove 302 adapted to the ejector plate 21 is formed at the bottom end of the first groove 301 on the movable mold plate 300; a third groove 303 matched with the sliding seat 31 is arranged on the movable template 300 at the side of the first groove 301; the stripper plate 200 is provided with a fourth groove 201 adapted to the ejector plate 21, and the stripper plate 200 is provided with a plurality of fifth through holes 202 adapted to the ejector rods 23 one by one at the bottom end of the fourth groove 201.
The working process of the utility model is as follows:
as shown in fig. 2, the mold parting force drives the movable mold plate 300 to move away from the stripper plate 200 and along the mold opening direction (upward), limited by the limiting member therebetween, the stripper plate 300 moves a certain distance (upward), and the ejector plate 21 on the stripper plate 200 moves downward relatively, so that all the core pins 7 are stripped from the first cavity 501; after completion, the second driving device 700 drives the ejector pin 8 to move horizontally, so that the ejector pin is pushed out from the second cavity 502. Finally, the first driving device drives the top bar 23 to move (upward), so as to eject the plastic part 600 from the second cavity 502.
The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims (5)

1. The core pulling mechanism of the mould is characterized in that each cavity comprises a first cavity and a second cavity which are communicated with each other; the core pulling mechanism is arranged on a movable die of the die and comprises a first core pulling device extending into the first cavity and a second core pulling device extending into the second cavity; wherein:
the first core pulling device comprises an ejector plate which is arranged on the stripper plate and extends along the die opening direction, the end part of the ejector plate extends into the first cavity, more than one group of core pin assemblies which are matched with the first cavity one by one are arranged on the ejector plate, each group of core pin assemblies is provided with an ejector rod, one end part of each ejector rod extends into the movable die plate, and the other end part of each ejector rod sequentially penetrates through one ejector plate, the stripper plate and the bottom plate and is in transmission connection with a first driving device; each ejector rod can extend into one first cavity under the driving of the first driving device so as to eject the plastic part out of the first cavity;
the second core pulling device comprises a sliding seat arranged on the movable mould plate, a plurality of barrel assemblies are arranged at the end part, close to the movable mould core, of the sliding seat, one end part of each barrel assembly extends into the second cavity, the other end part of each barrel assembly penetrates through the sliding seat and is in transmission connection with a second driving device arranged on the movable mould plate, and the second driving device can drive the barrel assemblies to slide relative to the sliding seat so as to enter or leave the second cavity; each ejector barrel assembly is connected with a glue inlet.
2. The mold core pulling mechanism as claimed in claim 1, wherein one end of the ejector plate is provided with a plurality of first locking protrusions adapted to the first cavity; every all be equipped with a first draw-in groove on the first card arch, every the bottom of first draw-in groove all is equipped with a first through-hole that extends along the die sinking direction, every the through-hole all with one the ejector pin adaptation.
3. A mould core-pulling mechanism as claimed in claim 2, wherein each of the core pin assemblies comprises a locating block; one end of each positioning block is provided with a second clamping protrusion matched with the first clamping groove; a second through hole extending along the die opening direction is formed in the end part of the second clamping protrusion on each positioning block; a plurality of third through holes extending along the die opening direction are symmetrically formed in the positioning block on two sides of the second clamping protrusion; and a core needle is arranged in each third through hole in a matching manner.
4. A mould core-pulling mechanism as claimed in claim 1, wherein each said barrel assembly comprises a barrel needle and a barrel sleeve around the barrel needle: one end of each ejector pin penetrates through the sliding seat and is in transmission connection with the second driving device, and the other end of each ejector pin extends towards the second cavity; one end of each ejector sleeve is detachably and fixedly connected with the sliding seat, and a diversion trench matched with the glue inlet is formed in the side wall of each ejector sleeve.
5. The mold core pulling mechanism according to any one of claims 1 to 4, wherein a first groove adapted to the movable mold core is formed at one end of the movable mold plate, and a second through groove adapted to the ejector plate is formed at the bottom end of the first groove on the movable mold plate; a third groove matched with the sliding seat is formed in the movable template and beside the first groove; and a fourth groove matched with the ejector pin plate is formed in the stripper plate, and a plurality of fifth through holes matched with the ejector pins one by one are formed in the bottom end part of the fourth groove in the stripper plate.
CN202123127109.6U 2021-12-13 2021-12-13 Core pulling mechanism of plastic mold Active CN216465959U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123127109.6U CN216465959U (en) 2021-12-13 2021-12-13 Core pulling mechanism of plastic mold

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Application Number Priority Date Filing Date Title
CN202123127109.6U CN216465959U (en) 2021-12-13 2021-12-13 Core pulling mechanism of plastic mold

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CN216465959U true CN216465959U (en) 2022-05-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114953365A (en) * 2022-07-29 2022-08-30 赫比(成都)精密塑胶制品有限公司 Mold structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114953365A (en) * 2022-07-29 2022-08-30 赫比(成都)精密塑胶制品有限公司 Mold structure
CN114953365B (en) * 2022-07-29 2022-09-30 赫比(成都)精密塑胶制品有限公司 Mold structure

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