CN110978419B - A rotating slider structure and a two-color injection mold - Google Patents
A rotating slider structure and a two-color injection mold Download PDFInfo
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- CN110978419B CN110978419B CN201911388666.8A CN201911388666A CN110978419B CN 110978419 B CN110978419 B CN 110978419B CN 201911388666 A CN201911388666 A CN 201911388666A CN 110978419 B CN110978419 B CN 110978419B
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- inclined guide
- guide post
- mold
- rubber inclined
- sliding block
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- 238000002347 injection Methods 0.000 title claims abstract description 20
- 239000007924 injection Substances 0.000 title claims abstract description 20
- 229920001875 Ebonite Polymers 0.000 claims abstract description 57
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims description 23
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000005526 G1 to G0 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 208000002925 dental caries Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
本发明公开一种旋转滑块结构，包括设在后模上的滑块、导向机构、限位机构及设在前模上的滑块驱动机构，滑块位于后模型腔的外侧。导向机构设在后模上，滑块与导向机构滑动配合。滑块背离滑块头的一侧开设有插槽，限位机构包括两个弹块，两个弹块对称布置在插槽的两侧，每个弹块配置有一个弹簧。滑块驱动机构包括硬胶斜导柱和软胶斜导柱，硬胶斜导柱和软胶斜导柱分别设在前模的两侧。本发明还公开一种双色注塑模具。本发明实现第一次合模时硬胶斜导柱驱动滑块顶出，第二次开模时软胶斜导柱驱动滑块退出倒扣，在第一次开模、第二次合模过程中滑块相对后模不动，本发明结构简单巧妙，制造成本低，安装方便。
The present invention discloses a rotating slider structure, including a slider, a guide mechanism, a limit mechanism and a slider driving mechanism arranged on a rear mold, wherein the slider is located outside the rear mold cavity. The guide mechanism is arranged on the rear mold, and the slider and the guide mechanism are slidably matched. A slot is provided on the side of the slider away from the slider head, and the limit mechanism includes two spring blocks, which are symmetrically arranged on both sides of the slot, and each spring block is provided with a spring. The slider driving mechanism includes a hard rubber inclined guide column and a soft rubber inclined guide column, and the hard rubber inclined guide column and the soft rubber inclined guide column are respectively arranged on both sides of the front mold. The present invention also discloses a two-color injection mold. The present invention realizes that the hard rubber inclined guide column drives the slider to be ejected when the mold is closed for the first time, and the soft rubber inclined guide column drives the slider to withdraw and undercut when the mold is opened for the second time. The slider does not move relative to the rear mold during the first mold opening and the second mold closing process. The present invention has a simple and ingenious structure, low manufacturing cost and convenient installation.
Description
Technical Field
The invention relates to the technical field of double-shot injection molds, in particular to a rotary slide block structure and a double-shot injection mold.
Background
The double-color injection mold is used for forming a double-color product piece with a hard rubber part and a soft rubber part combined into an integrated structure, the rear mold of the double-color injection mold is provided with two rear mold cavities, the front mold of the double-color injection mold is provided with two front mold cores, and the two rear mold cavities can be respectively matched with the two front mold cores. The injection molding process of the bicolor product piece is divided into two stages, namely, firstly, the hard rubber part is injection molded, the hard rubber part is left in the rear mold after the mold is opened, the rear mold is driven by the injection molding machine to rotate 180 degrees and then is matched with the front mold, a rear mold cavity with the molded hard rubber part is matched with another front mold core to form a soft injection cavity, and after soft rubber is injected, the soft rubber is combined with the hard rubber part molded in advance to form the bicolor product piece (see figure 1).
The bicolor product piece comprises a hard rubber part 61 and a soft rubber part 62, wherein an inverted structure 611 is arranged on the side surface of the hard rubber part 61, the inverted quantity of the inverted structure 611 is large, and a sliding block is arranged in a rear die to solve the inverted problem. In the injection molding process, two sides of the mold are required to be closed and two times of mold opening are required, when the mold is closed for the first time, the slide block is required to be driven by the guide post on the front mold to eject, when the mold is opened for the first time, the formed hard rubber part is left in the cavity of the rear mold, the slide block is required to keep the position unchanged to carry out the second mold closing, soft rubber is driven into after the second mold closing, the molded hard rubber part is combined with the second mold closing, when the mold is opened for the second time, the slide block is required to eject a product piece after back buckling, the slide block driving structure of the existing double-color injection mold is difficult to drive the slide block, or the existing slide block driving mechanism has the problems of very complex structure, high manufacturing and assembling difficulty and high cost. Accordingly, the prior art is further improved.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a rotary slider structure, in which the above-mentioned driving manner of the slider is difficult to be achieved by the existing slider driving mechanism, or in which the existing slider driving mechanism has the problems of very complex structure, high manufacturing and assembling difficulties, and high cost.
In order to solve the technical problems, the invention adopts the following technical scheme:
The utility model provides a rotatory slider structure, includes slider, guiding mechanism, stop gear and the slider actuating mechanism of establishing on the front mould of establishing on the back mould, the slider is located the outside in back model chamber, and the slider is close to the one side in back model chamber and has the slider head.
The guide mechanism is fixed on the rear die, and both sides and the bottom of the sliding block are in sliding fit with the guide mechanism.
The slot is offered to one side that the slider deviates from the slider head, and stop gear includes two bullet pieces, and two bullet pieces symmetrical arrangement are in the both sides of slot, and every bullet piece disposes a spring.
The slide block driving mechanism comprises a hard rubber inclined guide post and a soft rubber inclined guide post, and the hard rubber inclined guide post and the soft rubber inclined guide post are respectively arranged at two sides of the front die.
One end of the hard rubber inclined guide post and one end of the soft rubber inclined guide post can be fixedly connected with the front die, and the other end of the hard rubber inclined guide post and the other end of the soft rubber inclined guide post can extend into the slot of the sliding block and drive the sliding block to move along the direction approaching or far away from the cavity of the rear die.
Further, the guide mechanism comprises two guide blocks and a bottom plate, wherein the two guide blocks are respectively arranged on two opposite sides of the sliding block, and each guide block is in sliding fit with the sliding block.
The bottom plate is located the bottom of slider, the bottom of slider and the surface sliding fit of bottom plate, the U-shaped breach corresponding with the slot has been seted up to one side of bottom plate.
Further, the guide blocks are long strips with T-shaped cross sections, the upper part of one side of each guide block close to the sliding block is provided with an extended detection edge, and the detection edge is in sliding guide fit with the steps on the corresponding side of the sliding block.
Further, stop gear includes the spacing clamp, spacing clamp fixed mounting is in the inside of bottom plate, and the bottom of slider is equipped with two spacing grooves that can with the expansion end matched with of spacing clamp, and two spacing grooves are arranged in proper order along the direction of motion of slider.
Further, the two sides of the sliding block, which are positioned on the slot of the sliding block, are symmetrically provided with spring block installation cavities, and each spring block is positioned in the spring block installation cavity on the same side and is in sliding fit with the sliding block.
The two spring blocks are corresponding in the forward direction and the opposite ends extend into the slots of the sliding blocks, the two springs are respectively positioned in the two spring block installation cavities, and each spring props against one end of the spring block on the same side, which is far away from the slot.
The upper parts of the end surfaces of the two elastic blocks at the opposite ends are inclined surfaces, and the inclined surfaces of the two elastic blocks form a V-shaped structure.
Further, the hard rubber inclined guide post is of a right trapezoid structure, a first fixing seat is arranged at one end of the wide side of the hard rubber inclined guide post, and one end of the narrow side of the hard rubber inclined guide post can extend into the slot to be matched with the sliding block in an inserting mode.
The bevel edge side of the hard glue oblique guide post is close to the slider head, contacts with the inner side of the slot and drives the slider to move towards the rear mold cavity.
The narrow side end of the hard rubber inclined guide post is a pointed structure with inclined surfaces at two sides, and when the die is closed once, the pointed structure of the hard rubber inclined guide post is inserted between the two elastic blocks, and the hard rubber inclined guide post drives the sliding block to move towards the direction close to the rear die cavity.
Further, the flexible glue oblique guide post is of a rod-shaped structure, one end of the flexible glue oblique guide post is provided with a second fixing seat, and the other end of the flexible glue oblique guide post can extend into the slot to be in plug-in fit with the sliding block.
The soft rubber inclined guide post is obliquely arranged relative to the mold opening direction, one end of the soft rubber inclined guide post connected with the second fixing seat is close to the rear mold cavity, and the other end of the soft rubber inclined guide post is far away from the rear mold cavity.
The other end of the soft rubber inclined guide post is also a pointed structure with inclined planes at two sides, the outer wall of one side of the rear model cavity is of a plane structure.
During secondary mould closing, the tip structure of the soft rubber inclined guide column is inserted into and pushes away the two elastic blocks, and along with the continuous insertion of the soft rubber inclined guide column, the two elastic blocks reset and lock the soft rubber inclined guide column, and during secondary mould opening, the soft rubber inclined guide column drives the sliding block to move towards the direction deviating from the rear mould cavity through the two elastic blocks.
Further, the slider is located on one side of the slider head away from the rear mold cavity, and the slider head and the slider stationary phase are connected into a whole.
Another object of the present invention is to provide a two-shot injection mold.
The utility model provides a double-colored injection mold, includes back mould and front mould, still includes foretell rotatory slider structure, and back mould has two back model cavitys of juxtaposition relative arrangement, and front mould has two front mould cores of relative arrangement, and every front mould core all can cooperate with two back model cavitys to form the injection molding chamber.
The outer side of one front mold core is provided with the hard rubber inclined guide post, and the outer side of the other front mold core is provided with the soft rubber inclined guide post.
The outside of every back mould die cavity all is equipped with the slider, and the guide block of slider both sides and the bottom plate of bottom are fixed on the back mould.
Further, the first fixing seat and the second fixing seat are fixedly connected with the front mold bolt respectively.
By adopting the technical scheme, the invention has the beneficial technical effects that the hard rubber inclined guide post and the limiting mechanism are matched, and the soft rubber inclined guide post and the limiting mechanism are matched, so that the hard rubber inclined guide post drives the sliding block to eject out in the first mold closing process, and the soft rubber inclined guide post drives the sliding block to withdraw from the back-off in the second mold opening process, and the sliding block is fixed relative to the rear mold in the first mold opening process and the second mold closing process.
Drawings
The partial structure of the two-color product piece indicated in the background of fig. 1 is schematically shown.
Fig. 2 is a schematic diagram of the structure principle of the rotary slider structure of the present invention after the soft rubber oblique guide post is removed.
FIG. 3 is a schematic cross-sectional view of the rotating slider structure of the present invention after removal of the flexible glue diagonal guide post.
Fig. 4 is a diagram showing a relationship between the limiting mechanism and the hard rubber oblique guide post shown in fig. 2 under a certain state.
Fig. 5 is a diagram showing the fit relationship of the stopper mechanism and the hard rubber diagonal guide post shown in fig. 2 in another state.
Fig. 6 is a schematic diagram of the structure principle of the rotary slider structure of the present invention after the hard glue oblique guide post is removed.
FIG. 7 is a schematic cross-sectional view of a rotary slider structure of the present invention after removal of the hard gum diagonal guide.
Fig. 8 is a diagram showing a relationship between the stopper mechanism and the flexible glue oblique guide post shown in fig. 6 in a certain state.
Fig. 9 is a diagram showing a mating relationship of the stopper mechanism and the flexible glue oblique guide post shown in fig. 6 in another state.
Detailed Description
The invention is described in detail below with reference to the attached drawing figures:
Embodiment 1, with reference to fig. 2 to 9, a rotary slide block structure includes a slide block 1 provided on a rear mold, a guide mechanism 2, a limit mechanism 3, and a slide block 1 driving mechanism provided on a front mold, wherein the slide block 1 is located at an outer side of a rear mold cavity, and a slide block head 11 is provided at a side of the slide block 1 close to the rear mold cavity. The sliding block 1 is positioned at one side of the sliding block head 11, which is away from the rear model cavity, and the sliding block head 11 is fixedly connected with the sliding block 1 into a whole. The slider head 11 moves along with the slider 1, the end part of the slider head 11 stretches into the back mold cavity, and after injection molding, the slider head 11 needs to be withdrawn from the back-off, and then the mold is opened.
The guide mechanism 2 is fixed on the rear die, and both sides and the bottom of the sliding block 1 are in sliding fit with the guide mechanism 2. The guide mechanism 2 comprises two guide blocks 21 and a bottom plate 22, the two guide blocks 21 are respectively arranged on two opposite sides of the sliding block 1, the guide blocks 21 are fixedly connected with the rear die through bolts, and each guide block 21 is in sliding fit with the corresponding side of the sliding block 1.
The guide blocks 21 are long strips with T-shaped cross sections, the upper part of one side of each guide block 21 close to the sliding block 1 is provided with an extended detection edge 211, and the detection edge 211 is in sliding guide fit with the steps of the corresponding side of the sliding block 1. The bottom plate 22 is located the bottom of slider 1, and bottom plate 22 and back mould bolt fastening link to each other, and the bottom of slider 1 and the surface sliding fit of bottom plate 22, guide block 21 play the guide effect to the motion of slider 1, guarantee that it moves along the straight line direction. The limiting mechanism 3 comprises a limiting clamp, the limiting clamp is fixedly arranged in the bottom plate 22, two limiting grooves which can be matched with the movable end of the limiting clamp are formed in the bottom of the sliding block 1, and the two limiting grooves are sequentially arranged along the movement direction of the sliding block 1.
The limiting clamp is a limiting mechanism commonly used in the field of die manufacturing, and has the function of positioning the sliding block 1 under the condition of only being subjected to gravity or no stress, and the movable end of the limiting clamp is clamped into a limiting groove at the bottom of the sliding block 1, so that the sliding block is prevented from freely sliding relative to the guide block 21 and the bottom plate 22. When the sliding block 1 receives a certain driving force, the movable end of the limiting clamp is separated from the limiting grooves, and the sliding block 1 moves relative to the guide block 21 and the bottom plate 22 under the action of the driving force.
The side of the sliding block 1 facing away from the sliding block head 11 is provided with a slot 12, and one side of the bottom plate 22 is provided with a U-shaped notch 221 corresponding to the slot 12. The limiting mechanism 3 comprises two elastic blocks 31, wherein the two elastic blocks 31 are symmetrically arranged at two sides of the slot 12, and each elastic block 31 is provided with a spring 32. Two bullet piece installation cavities 13 have been seted up to the bilateral symmetry that slider 1 is located its slot 12, and the extending direction of two bullet piece installation cavities 13 is perpendicular and the forward direction is relative with the direction of motion of slider. Each spring 31 is located in the spring mounting cavity 13 on the same side, and the spring 31 can only slide along the extending direction of the spring mounting cavity 13 and is matched with the sliding block 1, and cannot rotate around the spring.
The two elastic blocks 31 are aligned in the forward direction, and the corresponding ends of the two elastic blocks 31 extend into the slot 12 of the sliding block 1. The two springs 32 are respectively located in the two bullet block installation cavities 13, and are respectively located at one ends of the bullet blocks 31, which deviate from each other, each spring 32 props against one end of the bullet block 31 on the same side, which is far away from the slot 12, and the corresponding ends of the two bullet blocks 31 are contacted with each other under the action of the springs 32. The upper parts of the end surfaces of the opposite ends of the two elastic blocks 31 are inclined surfaces 311, and the inclined surfaces 311 of the two elastic blocks 31 form a V-shaped structure.
The sliding block 1 driving mechanism comprises a hard rubber inclined guide post 4 and a soft rubber inclined guide post 5, wherein the hard rubber inclined guide post 4 and the soft rubber inclined guide post 5 are respectively arranged on one side, away from each other, of two front model cores of the front die. One end of the hard rubber inclined guide post 4 and one end of the soft rubber inclined guide post 5 can be fixedly connected with the front die, and the other end of the hard rubber inclined guide post can extend into the slot 12 of the sliding block 1 and drive the sliding block 1 to move along the direction approaching or separating from the rear die cavity.
The hard rubber inclined guide post 4 is of a right trapezoid structure, a first fixing seat 41 which is integrated with the hard rubber inclined guide post 4 is arranged at one end of the wide edge of the hard rubber inclined guide post 4, and one end of the narrow edge of the hard rubber inclined guide post can extend into the slot 12 to be matched with the sliding block 1 in a plugging manner. The bevel side of the hard glue oblique guide post 4 is close to the slider head 11, contacts with the inner side of the slot 12 and drives the slider 1 to move towards the rear mould cavity.
The narrow side one end of the hard rubber inclined guide post 4 is a tip structure with inclined surfaces at two sides, when the die is assembled once, the tip structure of the hard rubber inclined guide post 4 is firstly contacted with the inclined surfaces of the two elastic blocks 31, the two elastic blocks 31 move to two sides under the action of the tip structure of the hard rubber inclined guide post 4, the hard rubber inclined guide post 4 is inserted between the two elastic blocks 31, the inclined side of the hard rubber inclined guide post 4 is always contacted with the inner wall of the slot 12 in the process of inserting the hard rubber inclined guide post 4 into the slot 12, and the driving sliding block 1 moves towards the direction close to the rear die cavity.
After primary die assembly, the hard rubber oblique guide post 4 drives the sliding block 1 to move in place, the movable end of the limiting clamp is clamped into one of the limiting grooves, after hard rubber injection is completed, the die is opened once, the formed hard rubber part moves together with the die, the sliding block 1 keeps position motionless relative to the rear die under the action of the limiting clamp, and the rear die rotates 180 degrees under the drive of an injection molding machine to prepare for secondary die assembly.
The flexible glue oblique guide post 5 is in a rod-shaped structure, one end of the flexible glue oblique guide post 5 is provided with a second fixing seat 51 which is integrated with the flexible glue oblique guide post, and the other end of the flexible glue oblique guide post can extend into the slot 12 to be in plug-in fit with the sliding block 1. The flexible glue oblique guide post 5 is obliquely arranged relative to the mold opening direction, one end of the flexible glue oblique guide post connected with the second fixing seat 51 is close to the rear mold cavity, and the other end of the flexible glue oblique guide post is far away from the rear mold cavity. The other end of the soft rubber oblique guide post 5 is also provided with a pointed structure with inclined surfaces at two sides, the outer wall of one side, which is away from the rear model cavity, of the soft rubber oblique guide post is provided with a plane structure 52, and when the pointed structure of the soft rubber oblique guide post 5 is inserted between the two elastic blocks 31, the insertion force drives the two elastic blocks 31 to respectively retreat towards two sides.
During secondary die assembly, the pointed end structure of the flexible glue oblique guide post 5 is inserted into the opposite ends of the two elastic blocks 31, the two elastic blocks 31 are pushed away, and as the flexible glue oblique guide post 5 is continuously inserted, the flexible glue oblique guide post 5 inclines relative to the insertion direction of the flexible glue oblique guide post 5, and the two elastic blocks 31 reset to lock the flexible glue oblique guide post 5. After the secondary die assembly is completed, soft rubber is injected, and the soft rubber and the formed hard rubber part are combined to form a bicolor product piece.
In the secondary die sinking process, the bicolor product piece moves together with the die, in the process that the soft rubber inclined guide post 5 is pulled out from the slot 12 of the sliding block 1, the soft rubber inclined guide post 5 drives the sliding block 1 to move in the direction deviating from the cavity of the rear die relative to the rear die through two elastic blocks 31, the sliding block head 11 is withdrawn from the back-off, when the soft rubber inclined guide post 5 is separated from the elastic blocks 31, the movable end of the limiting clamp is clamped into the other limiting groove, the positioning of the sliding block 1 is realized, and after the secondary die sinking is finished, the ejection system of the rear die acts to eject the bicolor product piece.
Embodiment 2, with reference to fig. 2 to 9, a dual-color injection mold includes a rear mold and a front mold, and further includes the above-mentioned rotating slide block structure, where the rear mold of the dual-color injection mold has two front mold cavities arranged oppositely, namely a first front mold cavity and a second front mold cavity. The front mould has two front mould cores of relative arrangement, is first front mould core and second front mould core respectively, and first front mould core and second front mould core all can cooperate with two front mould chamber respectively.
Wherein, the outside of first front mould core is equipped with the oblique guide pillar of hard gum 4, the oblique guide pillar of hard gum 4 passes through first fixing base 41 and front mould bolt fastening links to each other, and the outside of second front mould core is equipped with the oblique guide pillar of soft gum 5, the oblique guide pillar of soft gum 5 passes through second fixing base 51 and front mould bolt fastening links to each other. The side of the first front mold cavity, which is away from the second front mold cavity, is provided with a sliding block1, the side of the second front mold cavity, which is away from the first front mold cavity, is also provided with a sliding block1, and guide blocks 21 on two sides of the sliding block1 and a bottom plate 22 on the bottom are fixed on the rear mold. The first fixing base 41 and the second fixing base 51 are fixedly connected with the front mold bolts, respectively.
The parts not described in the invention can be realized by adopting or referring to the prior art.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. The rotary slide block structure is characterized by comprising a slide block arranged on a rear die, a guide mechanism, a limiting mechanism and a slide block driving mechanism arranged on a front die, wherein the slide block is positioned at the outer side of a rear die cavity, and a slide block head is arranged at one side of the slide block, which is close to the rear die cavity;
the guide mechanism is fixed on the rear die, and both sides and the bottom of the sliding block are in sliding fit with the guide mechanism;
The guide mechanism comprises two guide blocks and a bottom plate, wherein the two guide blocks are respectively arranged on two opposite sides of the sliding block, and each guide block is in sliding fit with the opposite sides of the sliding block;
the bottom plate is positioned at the bottom of the sliding block, the bottom of the sliding block is in sliding fit with the surface of the bottom plate, and a U-shaped notch corresponding to the slot is formed in one side of the bottom plate;
the sliding block is provided with a slot at one side which is away from the sliding block head, the limiting mechanism comprises two elastic blocks, the two elastic blocks are symmetrically arranged at two sides of the slot, and each elastic block is provided with a spring;
The limiting mechanism further comprises a limiting clamp, the limiting clamp is fixedly arranged in the bottom plate, two limiting grooves which can be matched with movable ends of the limiting clamp are formed in the bottom of the sliding block, and the two limiting grooves are sequentially arranged along the moving direction of the sliding block;
the slide block driving mechanism comprises a hard rubber inclined guide post and a soft rubber inclined guide post, and the hard rubber inclined guide post and the soft rubber inclined guide post are respectively arranged at two sides of the front die;
one end of the hard rubber inclined guide post and one end of the soft rubber inclined guide post can be fixedly connected with the front die, and the other end of the hard rubber inclined guide post and the other end of the soft rubber inclined guide post can extend into the slot of the sliding block and drive the sliding block to move along the direction of approaching or separating from the rear die cavity;
The hard rubber inclined guide post is of a right trapezoid structure, a first fixing seat is arranged at one end of the wide side of the hard rubber inclined guide post, and one end of the narrow side of the hard rubber inclined guide post can extend into the slot to be matched with the sliding block in an inserting manner;
one side of the bevel edge of the hard rubber inclined guide post is close to the slider head, contacts with the inner side of the slot and drives the slider to move towards the rear mold cavity;
the narrow side of the hard rubber inclined guide post is provided with a pointed structure with inclined planes at two sides, when the mold is closed once, the pointed structure of the hard rubber inclined guide post is inserted between two elastic blocks, and the hard rubber inclined guide post drives the sliding block to move towards the direction close to the rear mold cavity;
after the hard glue injection is completed, the die is opened once, the formed hard glue part moves together with the die, the sliding block keeps a position relative to the rear die under the action of the limiting clamp, and the rear die rotates 180 degrees under the drive of the injection molding machine to prepare for secondary die assembly;
The soft rubber inclined guide post is of a rod-shaped structure, one end of the soft rubber inclined guide post is provided with a second fixing seat, and the other end of the soft rubber inclined guide post can extend into the slot to be in plug-in fit with the sliding block;
The soft rubber inclined guide post is obliquely arranged relative to the mold opening direction, one end of the soft rubber inclined guide post connected with the second fixing seat is close to the rear mold cavity, and the other end of the soft rubber inclined guide post is far away from the rear mold cavity;
The other end of the soft rubber inclined guide post is also a pointed structure with inclined planes at two sides, and the outer wall of one side of the soft rubber inclined guide post, which is away from the rear model cavity, is a plane structure;
during secondary mould closing, the tip structure of the soft rubber inclined guide column is inserted into and pushes away the two elastic blocks, and along with the continuous insertion of the soft rubber inclined guide column, the two elastic blocks reset and lock the soft rubber inclined guide column, and during secondary mould opening, the soft rubber inclined guide column drives the sliding block to move towards the direction deviating from the rear mould cavity through the two elastic blocks.
2. The rotary slide block structure according to claim 1, wherein the guide blocks are elongated with a T-shaped cross section, and the upper part of one side of each guide block, which is close to the slide block, is provided with an extended detection edge which is in sliding guide fit with the step of the corresponding side of the slide block.
3. The rotary slide block structure according to claim 1, wherein the slide block is symmetrically provided with spring block mounting cavities at two sides of the slot, and each spring block is positioned in the spring block mounting cavity at the same side and is in sliding fit with the slide block;
The two elastic blocks are corresponding in the forward direction, the opposite ends of the two elastic blocks extend into the slots of the sliding block, the two springs are respectively positioned in the two elastic block installation cavities, and each spring props against one end of the elastic block on the same side, which is far away from the slot;
the upper parts of the end surfaces of the two elastic blocks at the opposite ends are inclined surfaces, and the inclined surfaces of the two elastic blocks form a V-shaped structure.
4. A rotary slide structure according to claim 1, wherein the slide is located on a side of the slide head facing away from the rear mold cavity, the slide head being integrally connected to the slide stationary phase.
5. A bicolor injection mold, comprising a rear mold and a front mold, and further comprising a rotary slide block structure according to any one of claims 1 to 4, wherein the rear mold has two rear mold cavities arranged in parallel and opposite to each other, the front mold has two front mold cores arranged in opposite to each other, and each front mold core can be matched with two rear mold cavities to form an injection cavity;
the outer side of one front mold core is provided with the hard rubber inclined guide post, and the outer side of the other front mold core is provided with the soft rubber inclined guide post;
the outside of every back mould die cavity all is equipped with the slider, and the guide block of slider both sides and the bottom plate of bottom are fixed on the back mould.
6. The two-shot injection mold of claim 5, wherein the first and second holders are fixedly connected to the front mold bolts, respectively.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112060497B (en) * | 2020-08-25 | 2022-04-12 | 青岛华涛汽车模具有限公司 | Double-color mold sliding block forming mechanism |
| CN112829187B (en) * | 2020-12-31 | 2025-04-25 | 青岛海泰科模具有限公司 | In-mold compression two-color injection mold |
| CN112829207B (en) * | 2020-12-31 | 2022-06-21 | 宁波方正汽车模具股份有限公司 | Double-color injection mold |
| CN115923049A (en) * | 2022-11-04 | 2023-04-07 | 神通科技集团股份有限公司 | A kind of in-mold cutting mechanism and two-color mold for primary material head for two-color mold |
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| CN107498801A (en) * | 2017-08-09 | 2017-12-22 | 深圳市鹏准模具有限公司 | Slide block mechanism for bicolor injection mould |
| CN207465787U (en) * | 2017-11-27 | 2018-06-08 | 宁波冠宏模具有限公司 | A kind of double-shot moulding mould |
| CN109808129A (en) * | 2019-03-28 | 2019-05-28 | 宁波兴利汽车模具有限公司 | A rotary two-color mold structure and its injection molding method |
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| US8517716B2 (en) * | 2011-10-25 | 2013-08-27 | Cheng Uei Precision Industry Co., Ltd. | Injection mold |
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| CN109808129A (en) * | 2019-03-28 | 2019-05-28 | 宁波兴利汽车模具有限公司 | A rotary two-color mold structure and its injection molding method |
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