CN216466006U

CN216466006U - Demoulding device for automobile plastic part

Info

Publication number: CN216466006U
Application number: CN202123117856.1U
Authority: CN
Inventors: 陈晓龙
Original assignee: Shanghai Feier Automobile Fittings Co ltd
Current assignee: Shanghai Shanggong Feier Automotive Parts Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-10
Anticipated expiration: 2031-12-07

Abstract

The utility model provides a demoulding device for automobile plastic parts, which comprises a mould body used for moulding products and/or positioning in a first direction; the die inner core is arranged in the die body cavity and slides in a reciprocating manner in a second direction relative to the die body; for shaping and positioning of the product in a second direction; the drawing piece is arranged in the die body and slides in a reciprocating mode relative to the die body in the first direction, and the drawing piece is connected with a sliding groove formed in the die inner core in a matching mode through a sliding block and used for driving the die body and the die inner core to move and separate from a product. The utility model discloses a shedder is used to car plastic part adopts single cylinder structure, looses core in succession when carrying out the plastic part drawing of patterns, is difficult for pulling the product, promotes drawing of patterns efficiency and product goodness rate, reduction in production cost.

Description

Demoulding device for automobile plastic part

Technical Field

The utility model belongs to the technical field of injection mold, especially, relate to a shedder is used to car plastic part.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastic into a mold cavity at high pressure by an injection molding machine and obtaining a formed product after cooling and solidification. At present, after injection molding of an automobile plastic part, a demolding stage is carried out, the injection molded automobile plastic part is usually adhered to a cavity, demolding is carried out on the injection molded part in a multi-direction mode through a double-oil-cylinder structure, the double-oil-cylinder structure is complex to machine and large in occupied space, core pulling is required to be carried out successively during demolding, demolding period is long, work is unstable, oil cylinders are prone to pressure relief, and production efficiency is affected while products are strained.

SUMMERY OF THE UTILITY MODEL

In view of the problem that exists among the above-mentioned current injection mold technique, the utility model discloses a main aim at provides a shedder is used to car plastic part, and the shedder adopts the single cylinder structure for the car plastic part that provides, looses core in succession when carrying out the plastic part drawing of patterns, is difficult for pulling the product, promotes drawing of patterns efficiency and product goodness rate, reduction in production cost.

The purpose of the utility model can be realized through the following technical scheme:

the utility model provides a shedder is used to car plastic part, include:

a mold body for shaping and/or positioning of a product in a first direction;

the die inner core is arranged in the die body cavity and slides in a reciprocating manner in a second direction relative to the die body; for shaping and positioning of the product in a second direction;

the drawing piece is arranged in the die body and slides in a reciprocating mode relative to the die body in the first direction, and the drawing piece is connected with a sliding groove formed in the die inner core in a matching mode through a sliding block and used for driving the die body and the die inner core to move and separate from a product.

Further, the included angle between the first direction and the second direction is 90 degrees.

Furthermore, the sliding direction of the sliding groove and the second direction form a second angle, and the sliding groove converts the force part of the pull piece along the first direction into force along the second direction to drive the mold inner core to move along the second direction.

Further, the second angle is 30-90 degrees.

Furthermore, the matching part of the sliding groove and the sliding block is a smooth surface.

Furthermore, the demoulding device for the automobile plastic part further comprises an oil cylinder, and the oil cylinder is connected with the drawing part.

Furthermore, the sliding block of the drawing piece is protruded out of the surface of the drawing piece, and a matched space for protrusion movement is arranged in the mold body.

Furthermore, a limiting groove is formed in the bottom of the pull-out piece, a matched button machine is arranged on the die body, and the button machine reciprocates in the limiting groove; the limiting groove and the button machine can be interchanged in position.

Furthermore, the button machine is fixedly connected with the pull-out piece or the die body through an internal spring.

Furthermore, the sliding block of the drawing piece protrudes out of the surface of the drawing piece, and meanwhile, when a limiting groove or a button machine is arranged at the bottom of the drawing piece, the stroke of the button machine in the limiting groove in the first direction is not greater than the movement distance of the protrusion in the first direction.

The utility model discloses an outstanding effect does:

the demoulding device for the automobile plastic part adopts a single oil cylinder structure, continuous core pulling is carried out when the plastic part is demoulded, the oil cylinder is not easy to release pressure, strain of the product is reduced, and the product quality is improved;

the utility model discloses a shedder is used to car plastic part's pull portion motion cycle is short, has improved drawing of patterns efficiency, has reduced manufacturing cost.

Drawings

FIG. 1 is a schematic view of the overall structure of the demolding device for automobile plastic parts according to the present invention;

FIG. 2 is a schematic cross-sectional view of the demolding device for automobile plastic parts according to the present invention;

fig. 3 is a schematic structural view of the drawing part of the present invention;

fig. 4 is a schematic sectional structure view of the inner mold of the present invention;

fig. 5 is a schematic structural view of the button machine of the present invention;

fig. 6 is a schematic sectional structure view of the outer mold of the present invention.

The reference numbers illustrate:

1-oil cylinder; 2-a pull-out portion; 21-a slide block; 22-a limiting groove; 23-a first limit surface; 3-inner core of mould; 31-a chute; 32-a locating post; 33-a clamping groove; 4-a button sewing machine; 41-a limiting block; 42-a limit spring; 5-a mold body; 51-a cavity; 52-a stuck block; 53-a second limit surface; 6-molding; 61-through hole 61.

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 work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "front", "rear", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or component to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention with reference to the overall structure thereof.

As shown in fig. 1 to 6, the embodiment of the utility model discloses a shedder for automobile plastic part adopts single cylinder 1 structure, looses core in succession when carrying out the plastic part drawing of patterns, is difficult for pulling the product, promotes drawing of patterns efficiency and product goodness rate, reduction in production cost. Demoulding device for car plastic part includes:

a mold body 5 for shaping and/or positioning of the product in a first direction; wherein the first direction may be a direction parallel to the drawing direction of the drawer 2;

a core 3 disposed within the cavity 51 of the die body 5, the core 3 sliding reciprocally in a second direction with respect to the die body 5; for shaping and positioning of the product in a second direction; the second direction can be a direction perpendicular to the drawing direction of the drawer 2;

the drawing piece 2 is arranged in the die body 5 and slides in a reciprocating mode relative to the die body 5 in the first direction, and the drawing piece 2 is connected with a sliding groove 31 formed in the die inner core 3 in a matching mode through a sliding block 21 and used for driving the die body 5 and the die inner core 3 to move and separate from a product.

Specifically, the mold body 5 is a movable mold part in the whole mold for the automobile plastic part, and is combined with a fixed mold during production to mold the plastic part 6. Meanwhile, the surface of the mold body 5 is concave, and the movement of the plastic member 6 on the surface of the mold body 5, particularly along the first direction, is limited. The cavity 51 is arranged in the die body 5, and the cavity 51 is provided with the die inner core 3 and the drawer 2 and provides a movement space for the die inner core 3 and the drawer 2.

The inner die core 3 is disposed in the cavity 51 inside the die body 5. One end of the inner core 3 extends beyond the surface of the mould body 5 and is used for molding and forming the hole-type part in the molding part 6. Since the inner core 3 of the mold exceeds the surface of the mold body 5, the movement of the plastic member 6 in the second direction is restricted, which facilitates the positioning of the plastic member 6. The other end of the inner core 3 is provided with a sliding groove 31 connected with the drawer 2, and when the drawer 2 moves along the first direction, the inner core 3 can move along with the movement of the drawer 2 in the second direction.

One end of the pull piece 2 is embedded into the mold body 5, the other end is connected with the oil cylinder 1, and the pull piece is driven by the oil cylinder 1 to reciprocate in the mold body 5 along the first direction. One end of the drawer 2 embedded in the mold body 5 is provided with a slide block 21, and the slide block 21 is connected with the sliding chute 31 to drive the sliding inner core to move.

In a further embodiment, the first direction and the second direction are at an angle of 90 degrees.

In a further embodiment, the sliding direction of the sliding slot 31 is at a second angle with respect to the second direction, and the sliding slot 31 partially converts the force of the drawer 2 along the first direction into a force along the second direction, so as to drive the inner mold core 3 to move along the second direction.

Specifically, in order to convert the movement of the drawer 2 along the first direction into the movement of the inner core 3 along the second direction, so that the inner core 3 is separated from the plastic part 6, the sliding groove 31 and the sliding block 21 are designed. The tail of the drawer 2 is provided with a sliding block 21 which moves along the drawing direction along with the movement of the drawer 2. The slide block 21 is matched and connected with a sliding groove 31 at the bottom of the die inner core 3, and the sliding groove 31 and the second direction form a second angle. The core 3 is located in the cavity 51 of the mold body 5, and is restricted from moving in the first direction by the mold body 5 and can move in the second direction. In actual operation, when the drawer 2 moves away from the plastic part 6 in the first direction, under the combined action of the pulling force of the slider 21, the gravity of the inner core 3 and the resistance of the mold body 5 in the first direction, the chute 31 moves in the second direction and in the direction away from the plastic part 6, and the inner core 3 is separated from the plastic part 6.

In a further embodiment, the blocking of the relative movement between the slide 21 and the runner 31 is reduced in order to allow the drawer 2 to be moved in a second direction using a smaller pulling die core 3, said second angle being 30-90 degrees.

In a further embodiment, in order to reduce the friction between the sliding block 21 and the sliding slot 31 and facilitate the relative movement between the sliding block 21 and the sliding slot 31, the mating position of the sliding slot 31 and the sliding block 21 is smooth.

In a further embodiment, the demolding device for the plastic part of the automobile further comprises an oil cylinder 1, and the oil cylinder 1 is connected with the pulling part 2.

Specifically, in order to realize the reciprocating motion of the drawer 2, the oil cylinder 1 is adopted to provide power for the drawer 2. The cylinder 1 is a hydraulic cylinder, and is a hydraulic actuator that can convert hydraulic energy into mechanical energy and perform linear reciprocating motion. The oil cylinder 1 is simple in structure and not prone to failure. When it is used to realize reciprocating motion, it can omit speed reducer, and has no transmission gap and stable motion. In actual work, the oil cylinder 1 is started, the drawing piece 2 connected with the output shaft of the oil cylinder 1 reciprocates along with the oil cylinder 1 in the first direction, the drawing piece 2 drives the mold body 5 to reciprocate in the first direction, mold assembly is carried out for production movement according to production requirements, or demolding is carried out after the plastic part 6 is processed.

In a further embodiment, the slider 21 of the drawer 2 projects from the surface of the drawer 2, and the mould body 5 is provided with a matching space for the projecting movement.

Specifically, in this embodiment, the sliding block 21 of the drawer 2 protrudes from the drawer 2, the first limiting surface 23 is disposed at one end of the protruding portion away from the sliding block 21, and the second limiting surface 53 is disposed on the inner wall of the cavity 51 inside the mold body 5. When the drawer 2 moves in the direction away from the plastic part 6 along the first direction, the distance between the first limiting surface 23 and the second limiting surface 53 is reduced. Under the condition that the first limiting surface 23 is attached to the second limiting surface 53, the pull piece 2 pulls the mold body 5 away from the plastic piece 6, so that the stress of the whole mold body 5 is more uniform in the movement process.

In a further embodiment, the bottom of the drawing part 2 is provided with a limiting groove 22, the bottom of the drawing part 2 is provided with the limiting groove 22, the mould body 5 is provided with a matched button machine 4, and the button machine 4 reciprocates in the limiting groove 22; the position of the limiting groove 22 and the position of the button machine 4 can be interchanged.

In a further embodiment, the sear 4 is fixedly connected to the drawer 2 or the mold body 5 by means of an internal spring.

Specifically, two button machines 4 are arranged on the die body 5, and the button machines 4 are matched with the drawer 2 provided with the limiting groove 22. After the plastic part 6 is machined, and demolding is carried out, the drawing part 2 moves along the first direction from the initial position to the direction departing from the plastic part 6 to the set position, and then is limited and clamped by the limiting groove 22 and the limiting block 41 arranged on the button sewing machine 4, so that the stress in the drawing process is uniform. The distance between the initial position and the set position is larger than or equal to the distance of the inner core 3 exceeding the surface of the die body 5. In the process that the pull-out piece 2 moves from the initial position to the set position, the bottom of the pull-out piece 2 presses to the top of the button sewing machine 4, the button sewing machine 4 is provided with a limiting block 41, the limiting block 41 exerts pressure on a limiting spring 42 under the pressure exerted by the pull-out piece 2, when the pull-out piece 2 completely presses the button sewing machine 4, the limiting groove 22 at the bottom of the pull-out piece 2 completely presses the top of the limiting block 41 of the button sewing machine 4, the limiting spring 42 resets, and the limiting block 41 arranged on the button sewing machine 4 upwards bounces to just enable the limiting groove 22 to be clamped and pulled downwards. After the limiting block 41 of the button machine 4 is engaged with the limiting groove 22 of the drawer 2, the drawer 2 continues to move in the direction departing from the plastic part 6 along the first direction, and drives the mold body 5 to move together along the direction to which the mold body 5 belongs, so that the mold body 5 is separated from the plastic part 6, and the demolding of the plastic part 6 is completed. Wherein, the top of the limiting block 41 on the button machine 4 is a cambered surface, so that the limiting groove 22 of the drawer 2 is stably clamped with the limiting block 41, the abrasion of the demoulding device is reduced, and the plastic part 6 is prevented from being damaged due to vibration in the demoulding process. In the demoulding process of the mould body 5 and the mould inner core 3, the drawing piece 2 is drawn continuously, the movement period is short, the demoulding efficiency is improved, and the matching error in the input process of multiple driving sources is avoided, so that the strain rate of the product in the demoulding process is effectively reduced, and the product yield is ensured.

In a further embodiment, the sliding groove 31 of the drawer 2 protrudes from the surface of the drawer 2, and when the bottom of the drawer 2 is provided with the limiting groove 22 or the button 4, the stroke of the button 4 in the limiting groove 22 in the first direction is not more than the movement distance of the protrusion in the first direction.

Specifically, in the present embodiment, the drawer 2 can pull the whole mold body 5 to reciprocate, mainly depending on the cooperation between the button machine 4 and the limiting groove 22. In the demolding process of the plastic part 6, the pull part 2 moves away from the plastic part 6 along the first direction, when the limit groove 22 moving to the bottom of the pull part 2 is clamped with the limit block 41 on the button sewing machine 4, the protrusion moves in the first direction to fit the first limit surface 23 and the second limit surface 53, or a gap exists between the first limit surface 23 and the second limit surface 53. If the first limiting surface 23 at the protruding part is attached to the second limiting surface 53 inside the die body 5, when the pull piece 2 drives the whole die body 5 to move, the limiting surface can share the tensile force borne by the button sewing machine 4, the force borne by the button sewing machine 4 is reduced, and the service life of the button sewing machine 4 is prolonged. If a gap exists between the first limiting surface 23 and the second limiting surface 53 at the bulge, the button machine 4 bears the tensile force.

When the plastic part 6 is demoulded, the oil cylinder 1 is started to drive the pull part 2 to move in the direction far away from the plastic part 6 in the first direction. The sliding block 21 arranged at one end of the drawer 2 is separated from the sliding groove 31 arranged at one end of the inner core 3 of the mould relatively. The die inner core 3 is provided with a clamping groove 33, and the clamping groove 33 is connected with a clamping block 52 arranged on the inner wall of the cavity 51 of the die body 5. Driven by the sliding groove 31, the clamping groove 33 moves in the direction away from the plastic part 6 along the second direction, the outer wall of the positioning column 32 arranged at the other end of the mold inner core 3 gradually separates from the inner wall of the through hole 61 of the plastic part 6, and demolding of the through hole 61 of the plastic part 6 is completed. When the mold is closed to mold the plastic part 6, the limiting groove 22 arranged at the bottom of the pull-out part 2 is far away from one end of the plastic part 6 to press the limiting block 41 arranged on the button sewing machine 4 for positioning the pull-out part 2. When the plastic part 6 starts to be demolded, the drawer 2 starts to move, the limiting groove 22 gradually reduces the pressing on the limiting block 41, the limiting spring 42 is loosened, the limiting block 41 resets until being clamped with the limiting groove 22, and the resistance of the drawer 2 in the first direction is reduced. With the advance of the demolding process, one end of the limiting groove 22 close to the plastic part 6 gradually presses down the limiting block 41, so that the limiting block 41 and the limiting spring 42 arranged on the button machine 4 sink to the set position. When the limiting spring 42 sinks to the set position, the inner die core 3 sinks below the surface of the die body 5. At the moment, the die body 5 is also separated from the straight surface positioning, and the second limiting surface 53 arranged on the inner wall of the die body 5 is attached to the first limiting surface 23 arranged on the drawing part, so that the die body 5 is stressed more uniformly, and the residual plastic part is not easy to be pulled during demoulding. The oil cylinder 1 continues to drive the pull-out piece 2 to move in the direction of being far away from the plastic piece 6 along the first direction, so that the mould body 5 is driven to be far away from the plastic piece 6, demoulding of the rest reversing positions is completed, and demoulding of the plastic piece 6 is completed.

In the demolding process, only one oil cylinder 1 is used for driving force input, the occupied space is small, and the timing coordination of multiple driving force inputs is not needed to be considered; the oil cylinder 1 is continuously input into the drawing part to work, so that the pressure is not easy to release, the strain rate of a product is reduced, the production cost is reduced, the movement period of the drawing piece 2 is shortened, and the production efficiency is improved.

Finally, it should be noted that: the embodiments of the production equipment in the present disclosure are described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments are referred to each other. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or some features may be substituted by equivalent features, and any changes, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a shedder is used to car plastic part which characterized in that includes:

a mold body for shaping and/or positioning of a product in a first direction;

2. The apparatus for removing mold from plastic parts of an automobile according to claim 1, wherein the first direction and the second direction are at an angle of 90 degrees.

3. The apparatus for removing a mold for an automotive plastic part according to claim 1, wherein the sliding direction of the slide groove is at a second angle to the second direction, and the slide groove converts the force of the drawer in the first direction into a force in the second direction, thereby moving the inner core of the mold in the second direction.

4. The demolding device for automobile plastic parts as claimed in claim 3, wherein the second angle is 30-90 degrees.

5. The device of claim 3, wherein the sliding groove is smooth at the connection with the sliding block.

6. The apparatus for removing mold for automobile plastic parts according to claim 1, further comprising an oil cylinder connected to the drawer.

7. The demolding device for an automotive plastic part, according to claim 1, wherein the sliding block of the drawer is protruded from the surface of the drawer, and a matching space for protrusion movement is provided inside the mold body.

8. The demolding device for the automobile plastic part as claimed in claim 1 or 7, wherein a limiting groove is formed at the bottom of the pull-out part, a matched buckling machine is arranged on the mold body, and the buckling machine reciprocates in the limiting groove; the limiting groove and the button machine can be interchanged in position.

9. The device of claim 8, wherein the fastening machine is fixedly connected to the drawer or the mold body by a spring.

10. The device for removing mold of automotive plastic part according to claim 8, wherein the sliding block of the drawer protrudes from the surface of the drawer, and when the bottom of the drawer is provided with a limiting groove or a fastening machine, the stroke of the fastening machine in the limiting groove in the first direction is not more than the movement distance of the protrusion in the first direction.