CN220534800U - Injection mold for multi-side drawing retainer of chute on rotary disc - Google Patents

Abstract

The utility model discloses an injection mold for a multi-side drawing retainer of a chute on a rotary disc, which relates to the technical field of mold design and comprises a fixed mold fixing plate and a movable mold fixing plate, wherein the fixed mold fixing plate and an upper insert are sequentially arranged below the fixed mold fixing plate, cushion blocks are arranged on two sides above the movable mold fixing plate, the movable mold plate and a lower insert are sequentially arranged above the cushion blocks, a rotary side drawing part is arranged outside the lower insert, and a bottom needle plate, a face needle plate and a thimble are sequentially arranged above the middle part of the movable mold fixing plate. The rotary side drawing part is compact in design structure, the slide block is driven to move through the inclined guide pillar, and the rotary disc is driven to rotate by a certain angle through the hinge plate and the rotary handle in sequence, so that the side core pulling group can reciprocate back and forth, the principle is simple and easy to understand, the demolding speed is high, the used parts are few, the demolding time requirement is met, the finished product precision is high, the upper insert and the lower insert are cooled by adopting the waterway, the cooling efficiency is improved, and the production efficiency and the precision are further improved.

Description

Injection mold for multi-side drawing retainer of chute on rotary disc

Technical Field

The utility model relates to the technical field of mold design, in particular to an injection mold for a multi-side drawing retainer of a chute on a rotary disc.

Background

For a nylon bearing retainer plastic product with ten uniformly distributed side extraction holes, the rotation of a rotary disc with a chute is utilized, and a round pin on a sliding block is used for side extraction and demoulding relative to sliding, so that the nylon bearing retainer with ten uniformly distributed side extraction holes (comprising a main runner and five edge gates) is shown in the plastic product in fig. 8, and the conical barrel profile is provided with ten partial spherical side recesses outwards. Requiring a production cycle of within 40 seconds/die. Because the product has undercut, and the precision of equipartition is 0.08 on the circle, in order to guarantee sufficient dimensional accuracy and shape tolerance, need have enough big runner to do benefit to the feed anti-shrinkage. There is also a need for sufficient cooling time and automatic demolding must be used in order to meet the production cycle requirements. The rotary disk with the chute is rotated by the additional power of the oil cylinder and the air cylinder, so that a large part of production period is certainly occupied. The best scheme is that a sliding block structure is used for adding a comparison belt to drive the rotation of a rotary disc with a chute, and the side drawing is finished after the die opening is finished.

Disclosure of Invention

The utility model aims to provide an injection mold for a multi-side drawing retainer of a chute on a rotary disc, which aims to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a retainer injection mold is taken out to chute multiple side on rotatory disc, includes cover half fixed plate and movable mould fixed plate, the below of cover half fixed plate is equipped with the fixed plate in proper order and inserts, the top both sides of movable mould fixed plate are equipped with the cushion, and the top of cushion is equipped with movable mould board and inserts down in proper order, the outside of inserting down is equipped with rotatory side and takes out the portion, rotatory side is taken out the portion and is contained oblique guide pillar, slider, rotation handle, rotatory disc and side and is taken out core the group, the middle part top of movable mould fixed plate is equipped with end faller, face faller and thimble in proper order.

Further: the oblique guide post is installed in the below of fixed die plate through wedging piece, oblique guide post can insert in the oblique guide post hole of slider, the place ahead of slider is equipped with the hinge plate, the head of rotatory handle is fixed in rotatory disc's side, hinge plate and rotatory handle's root swing joint, the side is loose core and is organized evenly around the top that distributes at rotatory disc.

Preferably: the rotary disc is uniformly distributed with chute holes, the side core-pulling group comprises side core-pulling blocks, pins are arranged below the rear ends of the side core-pulling blocks, and the pins are inserted into the chute holes.

Preferably: the side loose core group is equipped with ten groups to the both sides of side loose core piece are equipped with the dog, the below of dog is fixed on the movable mould board, the rear of slider is equipped with spacing spring.

Further: the lower part of the ejector pin is clamped by the bottom needle plate and the surface needle plate, the upper part of the ejector pin can pass through the lower insert, and guide posts are arranged around the movable mould plate.

Further: the opposite angle of the face needle plate is provided with a reset spring column, a support column and an ejection guide rod are respectively arranged above the middle part and on two sides of the movable die fixing plate, the support column and the ejection guide rod sequentially penetrate through the bottom needle plate and the face needle plate, and the upper end of the ejection guide rod is inserted below the movable die plate.

The side drawing core is fixed with a pin shaft at the rear part, the lower part of the side drawing core is provided with a rotary disc, the rotary disc is uniformly distributed with angle oblique slotted holes, and the corresponding ten side drawing cores can be drawn and inserted along the radial direction as long as the rotary disc rotates repeatedly when small pins are inserted into the rotary disc. In order to make the chute rotary disk repeatedly rotate, the rotary disk rotary handle is fixed on the chute rotary disk, and the rotary disk rotary handle is connected with the hinge plate, so that when the slide block can only make linear motion and can make reciprocating sliding, the chute rotary disk can repeatedly rotate through the hinge plate and the rotary disk rotary handle, and ten angled chutes uniformly distributed on the chute rotary disk and small pins at the rear part of ten side drawing cores can relatively repeatedly slide, and under the action of the angle, one side drawing core can make drawing and inserting action. The side draw core can only reciprocate radially due to the action of the stop.

Compared with the prior art, the utility model has the beneficial effects that: the rotary side drawing part is compact in design structure, the slide block is driven to move through the inclined guide pillar, and the rotary disc is driven to rotate by a certain angle through the hinge plate and the rotary handle in sequence, so that the side core pulling group can reciprocate back and forth, the principle is simple and easy to understand, the demolding speed is high, the used parts are few, the demolding time requirement is met, the finished product precision is high, the upper insert and the lower insert are cooled by adopting the waterway, the cooling efficiency is improved, and the production efficiency and the precision are further improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic longitudinal cross-sectional view of the present utility model;

FIG. 3 is a schematic diagram of the present utility model in top perspective;

FIG. 4 is an enlarged schematic view at A;

FIG. 5 is a schematic view of a rotary side drawer;

FIG. 6 is an open schematic of FIG. 5;

FIG. 7 is an enlarged schematic view at B;

FIG. 8 is a schematic view of a workpiece;

FIG. 9 is a schematic diagram of the waterway layout of the upper insert;

fig. 10 is a schematic diagram of the waterway layout of the lower insert.

In the figure: 1. the fixed die fixing plate, 2, the fixed die plate, 3, the upper insert, 4, the movable die plate, 5, the lower insert, 6, the rotary side drawing part, 7, a cushion block, 8, the movable die fixing plate, 9, a bottom needle plate, 10, a face needle plate, 11, a thimble, 12, a guide pillar, 13, a return spring pillar, 14, an ejection guide bar, 15, a support pillar, 16, a workpiece, 17, a baffle plate, 61, an inclined guide pillar, 62, a slide block, 63, a hinge plate, 64, a rotary handle, 65, a rotary disc, 66, a side core-pulling group, 67, a wedging block, 68, a limit spring, 69, a stop block, 651, a chute hole, 661, a side core-pulling block, 662 and a pin.

Detailed Description

The present utility model will be described below based on embodiments with reference to the accompanying drawings in the embodiments of the present utility model, but it should be understood that the present utility model is not limited to these embodiments, and in the following detailed description of the present utility model, some specific details are described in detail, however, for the portions not described in detail, the present utility model will be fully understood by those skilled in the art.

Furthermore, those of ordinary skill in the art will appreciate that the drawings are provided solely for the purposes of illustrating the objects, features, and advantages of the utility model and that the drawings are not necessarily drawn to scale.

Meanwhile, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

Referring to fig. 1 to 10, the present utility model provides a technical solution: including cover half fixed plate 1 and movable mould fixed plate 8, the below of cover half fixed plate 1 is equipped with fixed die plate 2 and goes up insert 3 in proper order, the top both sides of movable mould fixed plate 8 are equipped with cushion 7, and the top of cushion 7 is equipped with movable die plate 4 and lower insert 5 in proper order, the outside of insert 5 is equipped with rotatory side portion of taking out 6 down, rotatory side portion of taking out 6 includes oblique guide pillar 61, slider 62, rotatory handle 64, rotatory disc 65 and side group of loosing core 66, the middle part top of movable mould fixed plate 8 is equipped with end faller 9, face faller 10 and thimble 11 in proper order.

The oblique guide post 61 is arranged below the fixed die plate 2 through a wedging block 67, the oblique guide post 61 can be inserted into an oblique guide post hole of the sliding block 62, a hinge plate 63 is arranged in front of the sliding block 62, the head of the rotating handle 64 is fixed on the side of the rotating disc 65, the hinge plate 63 is movably connected with the root of the rotating handle 64, and the side core pulling groups 66 are uniformly distributed above the rotating disc 64 in a surrounding mode.

The rotary disc 64 is uniformly provided with chute holes 651, the side core-pulling block 66 comprises a side core-pulling block 661, a pin 662 is arranged below the rear end of the side core-pulling block 661, and the pin 662 is inserted into the chute holes 651.

The side core pulling group 66 is provided with ten groups, two sides of the side core pulling block 661 are provided with stop blocks 69, the lower part of each stop block 69 is fixed on the movable template 4, and the rear part of each sliding block 62 is provided with a limit spring 68.

The lower part of the thimble 11 is clamped by the bottom needle plate 9 and the surface needle plate 10, the upper part of the thimble 11 can pass through the lower insert 5, and the periphery of the movable template 4 is provided with guide posts 12.

The opposite angle of the face needle plate 10 is provided with a reset spring column 13, a support column 15 and an ejection guide rod 14 are respectively arranged above and at two sides of the middle part of the movable die fixing plate 8, the support column 15 and the ejection guide rod 14 sequentially penetrate through the bottom needle plate 9 and the face needle plate 10, and the upper end of the ejection guide rod 14 is inserted below the movable die plate 4.

The specific mold layout is shown in fig. 1 and fig. 2, the upper end and the lower end of the mold are installed on the injection molding machine, the installation steps are not repeated, and the method belongs to the necessary skills of the person skilled in the art. Before the die is opened, the inclined surface at the back of the sliding block 62 is contacted and wedged by the wedging block 67, and the inclined surface at the back of the side-drawing type core 661 is wedged by the inclined surface structure of the upper core 3. When the mold is opened, the slide block 62 is inserted into the inclined guide column hole by the inclined guide column 61 fixed on the wedging block 67. Under the action of the mold opening movement, when the mold is opened to a proper position and the mold opening is stopped, the slide 62 is laterally drawn into place. The slide 62 is fixed in position by the limit spring 68 and can be automatically reset under slight disturbance. Meanwhile, the hinge plate 63 connected to the front end of the slider 62 is driven, and then the rotating disk 65 is rotated by the rotating handle 64, and the inclined slot 651 above is slid relatively to the pin 662 fixed to the rear of the ten side-drawing core blocks 661 when rotated clockwise, because the inclined slot 651 has an outward angle, and when rotated to a certain extent, one side-drawing core 66 is completely drawn out of the product. The side pumping action is now complete. Then, the ejector mechanism at the side of the injection movable mould acts to push the bottom needle plate 9 and the face needle plate 10, and overcomes the pressing force of the reset spring column 13 to drive the upper ejector pins 11 and other parts, the product compressed on the movable mould cavity is ejected from the mould cavity, meanwhile, the runner and the sub-runner are ejected, the product is completely separated from contact with the movable mould along with the ejection, ejection is stopped, at the moment, the product and the gate and the condensate can be easily taken out from the mould, then the injection machine is assembled and tightly combined again, and the injection machine can be injected again, and the upper insert and the lower insert are provided with waterways as shown in the accompanying drawing 9/10, so that the cooling and the heat dissipation are realized, and the waterways are internally provided with the baffle 17 to increase the waterway length.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a retainer injection mold is taken out to chute multiple side on rotatory disc, includes cover half fixed plate (1) and movable mould fixed plate (8), its characterized in that: the fixed die fixing plate is characterized in that a fixed die plate (2) and an upper insert (3) are sequentially arranged below the fixed die fixing plate (1), cushion blocks (7) are arranged on two sides of the upper portion of the movable die fixing plate (8), a movable die plate (4) and a lower insert (5) are sequentially arranged above the cushion blocks (7), a rotary side drawing part (6) is arranged outside the lower insert (5), the rotary side drawing part (6) comprises an inclined guide post (61), a sliding block (62), a rotary handle (64), a rotary disc (65) and a side core pulling group (66), and a bottom needle plate (9), a face needle plate (10) and a thimble (11) are sequentially arranged above the middle of the movable die fixing plate (8).

2. The rotary disc chute-on multi-sided drawer retainer injection mold of claim 1, wherein: the oblique guide pillar (61) is installed in the below of fixed template (2) through wedging piece (67), oblique guide pillar (61) can insert in the oblique guide pillar hole of slider (62), the place ahead of slider (62) is equipped with hinge plate (63), the head of rotatory handle (64) is fixed in the side of rotatory disc (65), the root swing joint of hinge plate (63) and rotatory handle (64), the side is loosed core group (66) evenly and is distributed in the top of rotatory disc (65).

3. The rotary disc chute-on multi-sided drawer retainer injection mold of claim 2, wherein: the rotary disc (65) is uniformly provided with chute holes (651), the side core-pulling group (66) comprises side core-pulling blocks (661), pins (662) are arranged below the rear ends of the side core-pulling blocks (661), and the pins (662) are inserted into the chute holes (651).

4. A rotary disc chute-on multi-sided drawer holder injection mold as claimed in claim 3, wherein: the side loose core group (66) is provided with ten groups, two sides of the side loose core block (661) are provided with stop blocks (69), the lower part of each stop block (69) is fixed on the movable template (4), and the rear part of each sliding block (62) is provided with a limiting spring (68).

5. The rotary disc chute-on multi-sided drawer retainer injection mold of claim 1, wherein: the lower part of the thimble (11) is clamped by the bottom needle plate (9) and the face needle plate (10), the upper part of the thimble (11) can pass through the lower insert (5), and guide posts (12) are arranged around the movable mould plate (4).

6. The rotary disc chute-on multi-sided drawer retainer injection mold of claim 1, wherein: the opposite angle of face faller (10) is equipped with reset spring post (13), the middle part top and the both sides of movable mould fixed plate (8) are equipped with support column (15) and ejecting guide arm (14) respectively, support column (15) and ejecting guide arm (14) all pass end faller (9) and face faller (10) in proper order, the upper end of ejecting guide arm (14) inserts in the below of movable mould board (4).