CN211891791U

CN211891791U - Injection mold core-pulling mechanism with large sliding block and built-in small sliding block

Info

Publication number: CN211891791U
Application number: CN201922438915.1U
Authority: CN
Inventors: 董正科; 操向东
Original assignee: Wuhan Huashengyuan Mould Co ltd
Current assignee: Wuhan Huashengyuan Mould Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-10
Anticipated expiration: 2029-12-30

Abstract

The utility model belongs to the technical field of moulds, in particular to an injection mould core-pulling mechanism with a large slide block and a small slide block, which comprises a large slide block and a small slide block; the large sliding block is provided with a step part, the step surface of the step part is provided with a groove, and the upper side surface of the step part is provided with a core hole; the small sliding block comprises a first horizontal part and a second horizontal part, the first horizontal part is positioned above the second horizontal part, and the outer end of the first horizontal part is fixed with the second horizontal part; when the die is closed, the second horizontal part slides inwards along the groove to drive the first horizontal part to be inserted into the large sliding block along the core hole and fixed with the large sliding block; when the mold is opened, the small slide block slides outwards along the groove and drives the first horizontal part to be drawn away from the product. The utility model discloses a structure of big slider cover little slider, when the die sinking, for making the product take off deformation by force before ensure there is the deformation space, take out earlier from the product with the first horizontal part of little slider, the position department is detained to the product when being convenient for big slider is loosed core to deformation to inside, and it is smooth and easy to make big slider detain the position demolding all around.

Description

Injection mold core-pulling mechanism with large sliding block and built-in small sliding block

Technical Field

The utility model belongs to the technical field of the mould, concretely relates to injection mold of little slider of big slider embeds mechanism of loosing core.

Background

With the rapid development of mechanization and industrialization, the die is widely applied to production workshops, and due to the convenience and the high efficiency of the die, the production efficiency is greatly improved, so the development of the die is more accurate and efficient.

When the workpiece is designed, the specific structure of the workpiece is determined according to the purpose of the workpiece, and as the purpose of some workpieces needs a product structure which is designed to be hollow and the edge of the outer surface of the workpiece has a full circumferential buckling position, the conventional single left and right slide block demolding has an inverted buckle, and a forced demolding scheme is preferentially used under the condition of meeting the appearance requirement of the product. However, the product is hollow, the inside of the product also needs to be added with the core pulling, and the forced demoulding needs to ensure that the product has a deformed position space, so that the product has no deformed space before the core pulling does not move, and the forced demoulding cannot be realized.

Disclosure of Invention

In order to overcome the not enough of above-mentioned prior art existence, the utility model aims at providing an injection mold of big built-in little slider of slider mechanism of loosing core adopts the structure of big slider cover little slider, and it has the deformation space to ensure before the product takes off the deformation by force, lets inside little slider loose core and takes out earlier, and the product is detained the position department and is warp to inside when being convenient for big slider is loosed core, and it is smooth and easy to make big slider detain the position whole week and go out the mould.

In order to achieve the purpose, the technical scheme of the utility model is that the core-pulling mechanism of the injection mold with the large slider and the small slider inside, which comprises the large slider and the small slider, wherein the large slider is provided with a step part, the step surface of the step part is provided with a groove, and the upper side surface of the step part is provided with a core hole; the small sliding block comprises a first horizontal part and a second horizontal part, the first horizontal part is positioned above the second horizontal part, and the outer end of the first horizontal part is fixed with the second horizontal part; the second horizontal part is slidably arranged in the groove; when the die is closed, the second horizontal part slides inwards along the groove to drive the first horizontal part to be inserted into the large sliding block along the core hole and fixed with the large sliding block; when the mold is opened, the small sliding block slides outwards along the groove and drives the first horizontal part to be drawn away from a product.

Further, the core pulling direction of the large sliding block and the core pulling direction of the small sliding block are in the same direction.

Further, the small sliding block is connected with a piston rod of the oil cylinder, and a limiting plate used for limiting the small sliding block to slide outwards is arranged on the outer side of the step surface.

Furthermore, an oil cylinder connector is installed on the outer side of the small sliding block and connected with a piston rod of the oil cylinder.

Furthermore, the outer side of the small sliding block is provided with a C-shaped limiting groove, one end of the oil cylinder connector is arranged in the C-shaped limiting groove, and the other end of the oil cylinder connector is arranged outside the C-shaped limiting groove and connected with a piston rod of the oil cylinder.

Furthermore, an annular groove matched with the annular bulge on the outer surface of the product is arranged on the inner wall of the core hole of the large sliding block.

Further, when the mold is opened, the sliding stroke of the second horizontal part is not less than the length of the first horizontal part inserted into the product.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model adopts the structure that the big slide block is sleeved with the small slide block, when the mould is closed, the first horizontal part of the small slide block is inserted into the big slide block and forms a cavity of the product with the big slide block; when the mold is opened, in order to ensure that a deformation space is reserved before the product is forcibly deformed, the first horizontal part of the small sliding block is firstly pulled away from the product, so that the buckling position of the product is deformed inwards when the large sliding block pulls the core, and the mold is smoothly discharged from the whole circumferential buckling position of the large sliding block;

(2) the utility model discloses an outside at the step face of step sets up and is used for the restriction little slider outside gliding limiting plate for little slider can drive big slider removal under the effect of hydro-cylinder, accomplishes forced demoulding function after the limiting plate is touch in certain displacement that slides.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a product of the present invention;

FIG. 2 is a schematic structural view of a product of the present invention;

FIG. 3 is a view A-A of FIG. 2;

FIG. 4 is an enlarged schematic view at B of FIG. 3;

fig. 5 is a schematic structural view of an injection mold core pulling mechanism with a large slider and a small slider built in according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an injection mold core pulling mechanism with a large slider and a small slider built in according to an embodiment of the present invention;

fig. 7 is a schematic structural view of an injection mold core pulling mechanism with a large slider and a small slider built in according to an embodiment of the present invention;

fig. 8 is a schematic view of a small slide block die closing state of an injection mold core-pulling mechanism with a large slide block and a small slide block built in according to an embodiment of the present invention;

fig. 9 is a schematic view of a small slider mold opening state of an injection mold core-pulling mechanism with a large slider and a small slider built in according to an embodiment of the present invention;

in the figure: 1. big slider, 11, step face, 12, upside surface, 13, recess, 2, little slider, 21, first horizontal part, 22, second horizontal part, 3, hydro-cylinder, 4, piston rod, 5, hydro-cylinder connector, 6, C shape spacing groove, 7, limiting plate, 8, product, 9, annular protrusion.

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 efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 5-9, an embodiment of the present invention provides an injection mold core pulling mechanism with a large slider 1 and a built-in small slider 2, including the large slider 1 and the small slider 2, wherein a step portion is provided on the large slider 1, a groove 13 is provided on a step surface 11 of the step portion, and a core hole is provided on an upper side surface 12 of the step portion; the small slide block 2 comprises a first horizontal part 21 and a second horizontal part 22, the first horizontal part 21 is positioned above the second horizontal part 22, and the outer end of the first horizontal part 21 is fixed with the second horizontal part 22; the second horizontal part 22 is slidably mounted in the groove 13; when the die is closed, the second horizontal part 22 slides inwards along the groove 13, so that the first horizontal part 21 is driven to be inserted into the large slide block 1 along the core hole and fixed with the large slide block 1; when the mould is opened, the small slide block 2 slides outwards along the groove 13 and drives the first horizontal part 21 to be drawn away from the product 8. The utility model adopts the structure that the large slide block 1 is sleeved with the small slide block 2, when the mould is closed, the first horizontal part 21 of the small slide block 2 is inserted into the middle and large slide block 1, and a cavity of a product is formed between the first horizontal part and the large slide block 1; when the mold is opened, in order to ensure that the product is deformed before being forcibly released, the first horizontal part 21 of the small sliding block 2 is firstly pulled away from the product, so that the product buckling position is deformed inwards when the large sliding block 1 is pulled out, and the mold stripping of the whole-circumference buckling position of the large sliding block 1 is smooth, so as to complete the forced mold release of the whole-circumference buckling position.

Further, the core pulling direction of the large slider 1 and the core pulling direction of the small slider 2 are in the same direction. The large slide block 1 and the small slide block 2 of the embodiment can be driven by different oil cylinders 3, and can also be driven by the same oil cylinder 3.

Further, the small sliding block 2 is connected with a piston rod 4 of the oil cylinder 3, and a limiting plate 7 used for limiting the outward sliding of the small sliding block 2 is arranged on the outer side of the step surface 11. Big slider 1 and little slider 2 adopt same hydro-cylinder 3 drive, and after little slider 2 touchs limiting plate 7 at certain displacement that slides, under limiting plate 7's effect, hydro-cylinder 3 continues the motion, and little slider 2 can drive big slider 1 and remove, accomplishes the forced demoulding function.

Further, as shown in fig. 6-7, an oil cylinder connector 5 is installed on the outer side of the small sliding block 2, and the oil cylinder connector 5 is connected with the piston rod 4 of the oil cylinder 3. Furthermore, the outer side of the small sliding block 2 is provided with a C-shaped limiting groove 6, one end of the oil cylinder connector 5 is arranged in the C-shaped limiting groove 6, and the other end of the oil cylinder connector is arranged outside the C-shaped limiting groove 6 and is connected with the piston rod 4 of the oil cylinder 3. The oil cylinder connector 5 is fixed through the C-shaped limiting groove 6, so that the piston rod 4 of the oil cylinder 3 is connected with the small sliding block 2, and the small sliding block 2 can be driven to move.

Further, the inner wall of the core hole of the large sliding block 1 is provided with an annular groove 13 matched with the annular bulge 9 on the outer surface of the product so as to form a circle of bulge on the outer surface of the product.

Further, when the mold is opened, the sliding stroke of the second horizontal part 22 is not less than the length of the first horizontal part 21 inserted into the product 8, so as to ensure that the first horizontal part 21 can be separated from the product 8 when the second horizontal part 22 moves outwards along the groove 13 for the maximum stroke, and provide a deformation space for the forced demolding of the large slide block 1.

The injection mold core-pulling mechanism of the embodiment is applied to a product as shown in fig. 1 to 4, one side of the product 8 is provided with a protruding round hole, and the outer surface of the round hole is provided with a ring-shaped protrusion 9 with a height of 1 mm. The concrete process of opening the mold by adopting the core-pulling mechanism of the embodiment is as follows: after the mold is opened, the oil cylinder 3 is used for driving the small slide block 2 to firstly move for 60 mm, then the small slide block 2 contacts the limiting plate 7 of the large slide block 1, the oil cylinder 3 continues to move, and the small slide block 2 fully drives the large slide block 1 to move, so that the forced demolding function is completed; because the small sliding block 2 firstly looses the core, the small sliding block 2 core in the product is drawn out, the product buckling position is convenient to deform inwards when the large sliding block 1 looses the core, and the whole-circumference buckling position of the large sliding block 1 is smooth in mold stripping.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an injection mold mechanism of loosing core of little slider is put to big slider, its characterized in that: the sliding block comprises a large sliding block and a small sliding block, wherein a step part is arranged on the large sliding block, a groove is arranged on the step surface of the step part, and a core hole is arranged on the upper side surface of the step part; the small sliding block comprises a first horizontal part and a second horizontal part, the first horizontal part is positioned above the second horizontal part, and the outer end of the first horizontal part is fixed with the second horizontal part; the second horizontal part is slidably arranged in the groove; when the die is closed, the second horizontal part slides inwards along the groove to drive the first horizontal part to be inserted into the large sliding block along the core hole and fixed with the large sliding block; when the mold is opened, the small sliding block slides outwards along the groove and drives the first horizontal part to be drawn away from a product.

2. The injection mold core-pulling mechanism with the large sliding block and the small sliding block arranged inside the large sliding block as claimed in claim 1, is characterized in that: the core pulling direction of the large sliding block and the core pulling direction of the small sliding block are in the same direction.

3. The injection mold core-pulling mechanism with the large sliding block and the small sliding block arranged inside the large sliding block as claimed in claim 2, characterized in that: the small sliding block is connected with a piston rod of the oil cylinder, and a limiting plate used for limiting the small sliding block to slide outwards is arranged on the outer side of the step surface.

4. The injection mold core-pulling mechanism with the large sliding block and the small sliding block arranged inside the large sliding block as claimed in claim 3, characterized in that: and an oil cylinder connector is installed on the outer side of the small sliding block and is connected with a piston rod of the oil cylinder.

5. The injection mold core-pulling mechanism with the large sliding block and the small sliding block arranged inside the large sliding block as claimed in claim 4, wherein: the outer side of the small sliding block is provided with a C-shaped limiting groove, one end of the oil cylinder connector is arranged in the C-shaped limiting groove, and the other end of the oil cylinder connector is arranged outside the C-shaped limiting groove and connected with a piston rod of the oil cylinder.

6. The injection mold core-pulling mechanism with the large sliding block and the small sliding block arranged inside the large sliding block as claimed in claim 1, is characterized in that: and an annular groove matched with the annular bulge on the outer surface of the product is arranged on the inner wall of the core hole of the large sliding block.

7. The injection mold core-pulling mechanism with the large sliding block and the small sliding block arranged inside the large sliding block as claimed in claim 1, is characterized in that: when the mold is opened, the sliding stroke of the second horizontal part is not less than the length of the first horizontal part inserted into a product.