CN215550603U - Core pulling device and injection mold - Google Patents

Abstract

The utility model relates to the field of injection molds, in particular to a core pulling device and an injection mold.

Description

Core pulling device and injection mold

Technical Field

The utility model relates to the field of injection molds, in particular to a core pulling device and an injection mold.

Background

At the present stage of the rapid development of the mold industry, people try to innovate a more reliable and more effective mold structure, and can realize the smooth production of products. Meanwhile, the die and the cost can be reduced. The device of loosing core is the structure commonly used in the mould design, the use of the device of loosing core can satisfy the product of gradually complicating, especially in the car light trade, the structure of car light decorative ring is complicated, it has more back-off, conventional structure of loosing core is bulky, the part is many, need to study and join in marriage the position many, it is long to join in marriage the mould time, it is well known, the structure of loosing core wears to establish on mould benevolence, process breach or through-hole or tunnel etc. promptly on mould benevolence, then the structure of loosing core sets up in breach or through-hole or tunnel, breach, through-hole and tunnel need separately set up with the water route, different intercommunication, otherwise can go out the situation of leaking, thus, just because it is bulky to loose core, in large quantities, lead to mould benevolence, the mould frame increases, just can arrange the water route on mould benevolence.

SUMMERY OF THE UTILITY MODEL

The utility model provides a core-pulling device and an injection mold, and solves the technical problems that in the prior art, the number of inverted buckles of a decorative ring product is large, so that the number of inclined tops or sliding blocks on the mold is large, and the layout of a water channel on a mold core is influenced. The technical scheme of the utility model is as follows:

a core pulling device includes: the ejection device comprises an inclined ejection block, a positioning block and a positioning block, wherein an ejection part is formed on the inclined ejection block; the sliding block is arranged on the inclined ejecting block in a penetrating mode, the sliding block and the inclined ejecting block are assembled in a sliding mode, and a core-pulling insert is arranged at one end, facing the ejecting part, of the sliding block; and the driving piece is in sliding fit with one end, far away from the ejection part, of the sliding block so as to limit the position of the sliding block.

According to one embodiment of the utility model, a stepped mounting channel is arranged in the inclined top block, and the sliding block is slidably assembled in the mounting channel.

According to one embodiment of the utility model, the core-pulling mold insert further comprises a resetting piece, the resetting piece is sleeved on the core-pulling mold insert, one end of the resetting piece abuts against the annular bulge in the mounting channel, and the other end of the resetting piece abuts against the sliding block seat on the sliding block.

According to an embodiment of the present invention, the sliding block further includes a limiting member, the limiting member is fixedly connected to the lifter block, a groove corresponding to the limiting member is formed on the sliding block base, and one end of the limiting member extends into the groove.

According to one embodiment of the utility model, the driving member is in sliding fit with the slider seat through a sliding pair so as to limit the position of the slider seat.

According to one embodiment of the present invention, the sliding pair includes a first inclined surface formed on the driver and a second inclined surface formed on the slider seat, the first inclined surface abutting against the second inclined surface.

According to an embodiment of the present invention, a guide portion is formed on the second inclined surface, the guide portion being provided as an inclined surface.

According to one embodiment of the utility model, the dovetail sliding groove is arranged on the inclined surface of the slider seat; the slide rail is arranged on the inclined surface of the driving part, the slide rail and the dovetail sliding groove are correspondingly arranged, and when the core is pulled, the driving part slides relative to the sliding block seat through the slide rail.

According to one embodiment of the utility model, a positioning part is formed on one side of the inclined ejector block facing the fixed die core, an avoiding part corresponding to the positioning part is formed on the movable die core, and the positioning part extends into the avoiding part.

An injection mold comprises the core-pulling device.

Based on the structure, the utility model can realize the technical effects that:

1. the core pulling device comprises an inclined ejecting block and a sliding block, wherein an ejecting part is formed on the inclined ejecting block, a core pulling insert is arranged at one end of the sliding block facing the ejecting part, under the action of external force, the core-pulling insert performs demoulding action in a first direction on the buckle on the product, the ejection part performs demoulding action in a second direction on the buckle on the product, the slide block penetrates through the inclined ejection block, the slide block and the inclined ejection block are assembled in a sliding manner, thus, the mold core does not need to be provided with a notch to accommodate the sliding block, compared with the prior art that the inclined ejector block and the sliding block are both arranged on the mold core in a penetrating way, a plurality of notches or through holes are correspondingly formed on the mold core, so that more notches or through holes are formed on a smaller mold core, and the water route of can't arranging, this application is through placing the mold insert of loosing core of slider in the oblique kicking block, has reduced breach or through-hole on the mould benevolence to avoid too much breach or through-hole to influence arranging in water route.

2. The utility model provides a be provided with the installation passageway of echelonment in the oblique kicking block, slider sliding assembly is in the installation passageway, and the installation passageway through the echelonment is spacing to the slider to prevent to take out core mold insert and ejecting part dislocation, thereby avoided the shaping product can't satisfy actual demand, need not set up limit structure like this and be favorable to the miniaturized design of device of loosing core.

3. The utility model provides a cover that resets is established on the mold insert of loosing core to for the power that resets of the mold insert of loosing core provides the power that resets, the piece that resets is placed the oblique kicking block in, has reduced and has seted up the passageway on mould benevolence, still is provided with the locating part on the oblique kicking block, and the removal of ejecting portion is kept away from to the spacing slider of locating part, and too big in the power that resets to prevent that the piece that resets from providing leads to the slider to break away from the installation passageway.

4. The utility model provides a be formed with first inclined plane on the driving piece, be formed with the second inclined plane that corresponds with first inclined plane on the slider seat, first inclined plane supports and leans on the second inclined plane, and the driving piece is through first inclined plane along second inclined plane inclined sliding like this to the last mold insert of loosing core of drive slider moves towards ejecting portion, thereby participates in the shaping of product buckle.

Drawings

FIG. 1 is a schematic structural diagram of a core pulling device;

FIG. 2 is an exploded view of the core pulling device;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural diagram of a lifter block;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic structural view of a slider;

FIG. 7 is a schematic view of the driving member;

wherein the content of the first and second substances,

1-a slanting top block; 11-a push-out part; 12-installing a channel; 121-annular protrusion; 122-annular boss; 13-a positioning section; 14-a locking hole; 15-hanging the table; 2-a slide block; 21-core pulling inserts; 22-slider seat; 221-grooves; 222-a second inclined surface; 2221-a guide; 3-a driving member; 31-a first inclined surface; 4-a reset piece; 5-a limiting part.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 to 7, the core pulling device of this embodiment includes an inclined ejector block 1, a slider 2 and a driving part 3, an ejector part 11 is formed on the inclined ejector block 1, the slider 2 is inserted into the inclined ejector block 1, the slider 2 and the inclined ejector block 1 are assembled in a sliding manner, a core pulling insert 21 is disposed at one end of the slider 2 facing the ejector part 11, and the driving part 3 is in sliding fit with one end of the slider 2 far from the ejector part 11 to limit the position of the slider 2.

It can be known by the above-mentioned class, the mold release action of first direction is carried out to buckle on the product to the mold insert 21 of this embodiment, ejecting portion 11 carries out the drawing of patterns action of second direction to the buckle on the product, slider 2 wears to establish on oblique kicking block 1 simultaneously, slider 2 and the assembly of sliding of oblique kicking block 1, need not set up the breach on mould benevolence like this and hold slider 2, place oblique kicking block 1 in the mold insert 21 of loosing core through slider 2 promptly, with the quantity of breach or through-hole on the reduction mould benevolence, slider 2 and oblique kicking block 1 separately set up among the prior art has been solved, lead to corresponding too much breach or the through-hole of formation on the mould benevolence, and then influence the problem that the mould benevolence water route was arranged.

The slider 2 is accommodated in the lifter block 1 of this embodiment, and the sliding position of the limiting slider 2, specifically, be provided with the installation passageway 12 of echelonment in the lifter block 1, the diameter of the slider seat 22 of slider 2 is greater than the diameter of the core insert 21, the core insert 21 extends out along the axial direction from the terminal surface of slider seat 22 in this embodiment, when the core insert 21 participates in the buckle molding of product, the slider seat 22 leans on the annular boss 122 of installation passageway 12 towards the one end of the core insert 21, in order to prevent that the core insert 21 slides too far towards ejector part 11, cause ejector part 11 and core insert 21 dislocation, and then influence the injection moulding of product buckle.

The cooperation of being fixed a position when the oblique kicking block 1 of this embodiment cooperates with the cover half benevolence, in order to guarantee the assembly precision of the two, specifically, one side of the oblique kicking block 1 orientation cover half benevolence is formed with outstanding location portion 13, be formed with the portion of dodging that corresponds with location portion 13 on the cover half benevolence, location portion 13 stretches into the portion of dodging, location portion 13 sets up to the reference column in this embodiment, the portion of dodging sets up to dodging the hole, when movable mould benevolence towards the cover half benevolence motion, the reference column on the kicking block 1 stretches into earlier and dodges the hole, with the direction of movement location to oblique kicking block 1, thereby prevent that the relative cover half benevolence of oblique kicking block 1 from rocking, and then avoided ejecting portion 11 and cover half benevolence cooperation shaping to go out bad buckle.

Preferably, the inclined ejector block 1 of the present embodiment is formed with a plurality of limiting portions, in the present embodiment, the limiting portions are configured as hanging tables 15, the hanging tables 15 are configured as non-circular arc shapes, and when the inclined ejector block 1 and the movable mold core are assembled, the hanging tables 15 are hung on the movable mold core.

In order to reduce the volume of the core pulling device, the reset of the sliding block 2 of the embodiment provides acting force by the reset piece 4, specifically, the reset piece 4 is arranged in the installation channel 12, in the embodiment, the reset piece 4 is set as a spring, the spring is sleeved on the core pulling insert 21, one end of the spring is abutted on the annular protrusion 121 in the installation channel 12, the other end of the spring is abutted on the sliding block seat 22, under the action of external force, the sliding block 2 moves towards the ejection part 11, the spring is compressed, when the core pulling is needed, the acting force on the sliding block is relieved by the external force, the spring provides the acting force to drive the sliding block 2 to move away from the ejection part 11, so that the core pulling demoulding of the buckle is completed, the reset piece 4 can be selected but not limited to the spring, and the acting force can be provided for the reset of the sliding block 2.

Preferably, in order to prevent the slider 2 from being separated from the installation channel 12, the slider 2 of this embodiment is limited by the limiting member 5 when moving away from the ejection portion 11, specifically, the inclined ejection block 1 is formed with a locking hole 14, the locking hole 14 is communicated with the installation channel 12, and the slider seat 22 is formed with a groove 221 corresponding to the locking hole 14.

The driving member 3 and the slide block seat 22 of this embodiment are slidably engaged with each other through a sliding pair to limit the position of the slide block seat 22, specifically, the sliding pair includes a first inclined surface 31 formed on the driving member 3 and a second inclined surface 222 formed on the slide block seat 22, the first inclined surface 31 abuts against the second inclined surface 222, the driving member 3 is fixedly connected with the stationary core through a fastening member 32, in this embodiment, the fastening member 32 is a bolt, the driving member 3 is fixed on the stationary core through the bolt, when the injection molding machine provides an acting force to drive the stationary core to move towards the stationary core, the second inclined surface 222 moves upwards relative to the first inclined surface 31, at this time, the first inclined surface 31 generates a component force downwards to the second inclined surface 222, thereby pushing the slide block 2 to move towards the ejecting part 11, when the injection molding machine provides an acting force to drive the stationary core to move away from the stationary core, the second inclined surface 222 moves downwards relative to the first inclined surface 31, at this time, the first inclined surface 31 releases the pushing force on the second inclined surface 222, and the slider 2 moves away from the ejector 11 by the spring.

Preferably, the second inclined surface 222 of the present embodiment is formed with a guide portion 2221, and the guide portion 2221 is provided as an inclined surface so that the second inclined surface 222 is attached to the first inclined surface 31.

The vice slide rail and the spout of still can setting to of this embodiment join in marriage the cooperation structure, specifically, the vice slide rail and dovetail groove of including of slip are equipped with dovetail groove on the inclined plane of slider seat 22, and the slide rail setting is on the inclined plane of driving piece 3, and the slide rail corresponds the setting with dovetail groove, and during the loose core, driving piece 3 slides through the relative slider seat 22 of slide rail.

Preferably, the slide rail of this embodiment is provided as two, and the two slide rails are provided in parallel.

This embodiment has still provided an injection mold, and the mould has adopted foretell device of loosing core to realized loosing core the device and arrange mutual noninterference with the water route, the device of loosing core simultaneously still carries out the drawing of core drawing of equidirectional not to the buckle, is particularly useful for the car light decorative ring that buckle structure is complicated.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A core pulling device, comprising:

the ejection device comprises an inclined ejection block (1), wherein an ejection part (11) is formed on the inclined ejection block (1);

the sliding block (2) penetrates through the inclined ejecting block (1), the sliding block (2) and the inclined ejecting block (1) are assembled in a sliding mode, and a core-pulling insert (21) is arranged at one end, facing the ejecting part (11), of the sliding block (2);

the driving piece (3) is in sliding fit with one end, far away from the ejection part (11), of the sliding block (2), so that the position of the sliding block (2) is limited.

2. The core pulling device according to claim 1, characterized in that a stepped mounting channel (12) is arranged in the inclined ejector block (1), and the sliding block (2) is slidably assembled in the mounting channel (12).

3. The core pulling device according to claim 2, further comprising a resetting member (4), wherein the resetting member (4) is sleeved on the core pulling insert (21), one end of the resetting member (4) abuts against an annular protrusion (121) in the mounting channel (12), and the other end of the resetting member (4) abuts against a slide seat (22) on the slide (2).

4. The core pulling device according to claim 3, further comprising a limiting member (5), wherein the limiting member (5) is fixedly connected with the ejector block (1), a groove (221) corresponding to the limiting member (5) is formed in the slider seat (22), and one end of the limiting member (5) extends into the groove (221).

5. The core pulling device according to claim 3 or 4, wherein the driving member (3) is in sliding engagement with the slider holder (22) through a sliding pair to limit the position of the slider holder (22).

6. The core pulling device according to claim 5, wherein the sliding pair comprises a first inclined surface (31) formed on the driving member (3) and a second inclined surface (222) formed on the slider holder (22), and the first inclined surface (31) abuts against the second inclined surface (222).

7. The core pulling device according to claim 6, characterized in that a guide portion (2221) is formed on the second inclined surface (222), and the guide portion (2221) is provided as an inclined surface.

8. The core pulling device according to claim 5, wherein the sliding pair comprises:

the dovetail sliding groove is formed in the inclined surface of the sliding block seat (22);

the slide rail is arranged on the inclined surface of the driving part (3), the slide rail and the dovetail sliding groove are correspondingly arranged, and during core pulling, the driving part (3) slides relative to the sliding block seat (22) through the slide rail.

9. The core pulling device according to claim 1, characterized in that a positioning part (13) is formed on one side of the inclined ejector block (1) facing a fixed mold core, an avoiding part corresponding to the positioning part (13) is formed on the fixed mold core, and the positioning part (13) extends into the avoiding part.

10. An injection mold comprising the core pulling device according to any one of claims 1 to 9.

Images