CN224170372U - Glue breaking port structure and die mechanism - Google Patents

Abstract

The utility model belongs to the technical field of dies, and particularly relates to a glue breaking structure and a die mechanism, wherein the glue breaking structure comprises a die body, a needle embedding assembly, a supporting block and a plurality of elastic pieces; the die body is provided with a die cavity for manufacturing a workpiece to be cast and a containing groove communicated with the die cavity, the supporting block is arranged in the containing groove, the supporting block is provided with a first through hole and a plurality of first mounting holes which are circumferentially arranged around the first through hole at intervals, the elastic pieces are arranged in the first mounting holes in a one-to-one correspondence mode, the insert pin assembly is movably arranged in the first through hole, the insert pin assembly is provided with convex parts which are abutted with all the elastic pieces, and one end of the insert pin assembly, which is far away from the convex parts, stretches into or withdraws from a glue injection port of the workpiece to be cast. According to the utility model, the glue breaking structure can finish the work of the glue breaking of the workpiece to be cast in advance, so that the quality of the workpiece to be cast is ensured, and the glue breaking structure is simple in structure and low in manufacturing cost.

Description

Glue breaking port structure and die mechanism

Technical Field

The utility model belongs to the technical field of dies, and particularly relates to a glue breaking structure and a die mechanism.

Background

In the process of manufacturing plastic products by using the mold, liquid plastic is required to be injected into a mold cavity through a material injection port, the liquid plastic can be molded into a hard plastic part in the mold cavity after being cooled, an upper mold and a lower mold are separated, and then the molded plastic part is taken out from a mold cavity of the lower mold. After the plastic product is molded, liquid plastic is accumulated at the position of the glue injection port, and when the material pulling needle and the insert needle assembly are separated from the plastic product, the insert needle assembly can damage the plastic product, so that the quality of the plastic product is affected.

Disclosure of Invention

The utility model provides a glue breaking structure and a die mechanism, which aim to solve the technical problems that plastic products are easy to damage when a material pulling needle and a needle inserting assembly are separated from the plastic products in the prior art.

In order to solve the technical problems, the embodiment of the utility model provides a glue breaking port structure, which comprises a die body, a needle embedding assembly, a supporting block and a plurality of elastic pieces, wherein the die body is provided with a die cavity for manufacturing a workpiece to be cast and a containing groove communicated with the die cavity, and the supporting block is arranged in the containing groove;

The support block is provided with a first through hole and a plurality of first mounting holes which are circumferentially arranged around the first through hole at intervals, the elastic pieces are arranged in the first mounting holes in a one-to-one correspondence mode, the insert pin assembly is movably arranged in the first through hole, the insert pin assembly is provided with protruding portions which are abutted to all the elastic pieces, and one end, away from the protruding portions, of the insert pin assembly extends into or withdraws from a glue injection port of a workpiece to be cast.

Optionally, a limiting hole is arranged between the supporting block and the die body, the protruding portion is slidably mounted in the limiting hole, and the limiting hole and the protruding portion are used for limiting the moving stroke of the needle inserting assembly.

Optionally, the die body is further provided with a sliding hole communicated with the limiting hole, the needle inserting assembly comprises a needle inserting body provided with the convex part and a sliding block slidably installed in the sliding hole, the needle inserting body is slidably installed in the first through hole, and the sliding block is abutted with the needle inserting body;

The sliding block is provided with a second through hole communicated with the inner hole of the needle embedding body.

Optionally, the glue breaking structure further comprises a die assembly driving assembly, and the die assembly driving assembly is used for driving the insert pin assembly to move in the first through hole.

Optionally, the mold clamping driving assembly comprises a mold clamping driving member and a pressing block arranged at the output end of the mold clamping driving member, and the mold clamping driving member is used for driving the pressing block to move so that the pressing block drives the insert pin assembly to move in the first through hole.

Optionally, the pressing block is further provided with a second mounting hole and a third mounting hole, the die assembly driving assembly further comprises a sprue bushing arranged in the second mounting hole and a material pulling needle arranged in the third mounting hole, the sprue bushing is used for inputting liquid casting material into an inner hole of the insert needle assembly, and the material pulling needle is used for pulling a solid part formed in the insert needle assembly.

Optionally, two first through holes are arranged on the die body at intervals, a plurality of first mounting holes are arranged on the periphery of each first through hole, and all the needle inserting assemblies are slidably mounted in each first through hole;

The die body is also provided with a material injection groove positioned between the two insert pin assemblies, the material injection groove is communicated with the inner holes of the two insert pin assemblies, and the sprue is used for inputting liquid casting materials into the material injection groove.

The utility model further provides a die mechanism, which comprises the glue breaking port structure.

The plastic gate structure comprises a die body, a support block, a plastic gate structure, a plastic gate and a plastic gate, wherein the support block is arranged in a containing groove of the die body, a first through hole and a plurality of first mounting holes circumferentially arranged around the first through hole at intervals are arranged on the support block, an elastic piece is arranged in the first mounting holes in a one-to-one correspondence mode, the plastic gate structure is arranged in the first through hole, one end of the plastic gate structure, which is far away from a convex part, extends into a die cavity of the die body, the elastic piece is in a compression state, liquid casting material can be injected into the die cavity through the plastic gate structure and cast a workpiece to be cast, the elastic piece drives the plastic gate structure to move towards one end, which is far away from the die cavity, of the plastic gate structure is separated from the plastic gate, and then a material pulling needle pulls solid piece solidified in the plastic gate structure, so that the solid piece in the plastic gate structure is separated from the workpiece to be cast in the die cavity, the plastic gate structure can complete the work of the workpiece to be cast, and the plastic gate structure is simple, and the manufacturing cost of the plastic gate structure is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a cross-sectional view of a glue-breaking structure according to an embodiment of the present utility model in a mold-opening state;

FIG. 2 is a cross-sectional view of a glue-breaking structure according to an embodiment of the present utility model in a closed state;

fig. 3 is a schematic view of a part of a glue-breaking structure according to an embodiment of the utility model.

Reference numerals in the specification are as follows:

1. The mold comprises a mold body, 11 parts of a mold cavity, 12 parts of a receiving groove, 13 parts of a sliding hole, 14 parts of a material injection groove, 2 parts of a needle inserting assembly, 21 parts of a needle inserting body, 211 parts of a convex part, 22 parts of a sliding block, 3 parts of a supporting block, 31 parts of a first through hole, 32 parts of a limiting hole, 4 parts of an elastic part, 5 parts of a mold clamping driving assembly, 51 parts of a pressing block, 52 parts of a sprue bushing, 53 parts of a material pulling needle, and 100 parts of a workpiece to be cast.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the invention more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify 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. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a glue breaking structure, which includes a mold body 1, a needle assembly 2, a supporting block 3, and a plurality of elastic members 4, wherein a mold cavity 11 for manufacturing a workpiece 100 to be cast and a receiving groove 12 communicating with the mold cavity 11 are provided on the mold body 1, the supporting block 3 is installed in the receiving groove 12, and it is understood that the shape of the mold cavity 11 is set according to the shape of the workpiece 100 to be cast, and in a specific embodiment, the workpiece 100 to be cast includes an outer cylinder and an inner cylinder disposed in the outer cylinder, and a glue injection port is disposed on the inner cylinder.

The support block 3 is provided with a first through hole 31 and a plurality of first mounting holes which are circumferentially arranged around the first through hole 31 at intervals, the elastic pieces 4 are mounted in the first mounting holes in a one-to-one correspondence manner, the insert pin assembly 2 is movably mounted in the first through hole 31, the insert pin assembly 2 is provided with convex parts 211 which are abutted with all the elastic pieces 4, and one end of the insert pin assembly 2, which is far away from the convex parts 211, stretches into or withdraws from a glue injection port of the workpiece 100 to be cast. It can be appreciated that the elastic members 4 include, but are not limited to, springs, etc., the number of the elastic members 4 may be set according to actual needs (for example, 3, 4, etc.), the protrusions 211 may be annular protrusions, all the elastic members 4 may abut against the annular protrusions, and a plurality of the protrusions 211 may also be disposed on the outer wall of the needle assembly 2 at intervals, and the elastic members 4 abut against the protrusions 211 in a one-to-one correspondence.

According to the utility model, a supporting block 3 is arranged in a containing groove 12 of a die body 1, a first through hole 31 and a plurality of first mounting holes circumferentially arranged around the first through hole 31 are arranged on the supporting block 3, elastic pieces 4 are correspondingly arranged in the first mounting holes one by one, a needle assembly 2 is movably arranged in the first through hole 31, when the die-breaking structure is in a die-closing state, one end of the needle assembly 2, which is far away from a convex part 211, extends into a die cavity 11 of the die body 1, the elastic pieces 4 are in a compression state, liquid casting material can be injected into the die cavity 11 through the needle assembly 2 and cast a workpiece 100 to be cast, in the die-breaking structure die-opening process, the elastic pieces 4 drive the needle assembly 2 to move towards one end, which is far away from the die cavity 11, and after the needle assembly 2 is separated from a glue outlet of the workpiece 100 to be cast, a solid piece solidified in the needle assembly 2 is pulled by a pulling needle 53, so that the solid piece in the needle assembly 2 is separated from the die cavity 11 to be cast, the die cavity 11 is in advance, the die-breaking structure of the workpiece 100 to be cast is manufactured, and the die-breaking structure is low in cost, and the die-breaking structure is guaranteed, and the die-breaking structure is easy to manufacture the workpiece 100 to be cast, and the die-breaking structure is manufactured, and the cost is low.

In an embodiment, as shown in fig. 1 and 2, a limiting hole 32 is provided between the support block 3 and the die body 1, the protrusion 211 is slidably mounted in the limiting hole 32, and the limiting hole 32 and the protrusion 211 are used for limiting the movement stroke of the needle assembly 2. It will be appreciated that the projection 211 may move within the limiting aperture 32 and compress the resilient member 4. In this embodiment, by controlling the length of the limiting hole 32, the stroke of the elastic member 4 driving the insert pin assembly 2 to move may be controlled, so as to avoid the accident that the insert pin assembly 2 damages the workpiece 100 to be cast due to the excessive moving stroke.

In an embodiment, as shown in fig. 1 and 2, the die body 1 is further provided with a sliding hole 13 communicating with the limiting hole 32, the needle assembly 2 includes a needle body 21 provided with the convex portion 211 and a sliding block 22 slidably mounted in the sliding hole 13, the needle body 21 is slidably mounted in the first through hole 31, the sliding block 22 abuts against the needle body 21, and as can be appreciated, the sliding block 22 abuts against an end of the needle body 21 away from the die cavity 11, and the sliding block 22 can limit the needle body 21 in the limiting hole 32 and the first through hole 31.

The slider 22 is provided with a second through hole communicated with the inner hole of the insert needle body 21. It is understood that the liquid casting material can be injected into the mold cavity 11 through the second through hole and the inner hole of the insert pin body 21, and the mold clamping driving member can move the insert pin body 21 through the sliding block 22. In this embodiment, the design of the slider 22 ensures the stability of the movement of the insert pin body 21.

In an embodiment, as shown in fig. 1 and 2, the glue breaking structure further includes a mold clamping driving assembly 5, and the mold clamping driving assembly 5 is used for driving the insert pin assembly 2 to move in the first through hole 31. It will be appreciated that the clamp drive assembly 5 includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, etc., and that the clamp drive assembly 5 may move the insert pin assembly 2.

In one embodiment, as shown in fig. 1 and 2, the mold clamping driving assembly 5 includes a mold clamping driving member (not shown) and a pressing block 51 mounted at an output end of the mold clamping driving member, wherein the mold clamping driving member is used for driving the pressing block 51 to move, so that the pressing block 51 drives the insert pin assembly 2 to move in the first through hole 31. It will be appreciated that the mold clamping driving member includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, etc., when the mold clamping driving member drives the pressing block 51 to push the sliding block 22, the sliding block 22 will drive the insert needle body 21 to move, the protrusion 211 of the insert needle body 21 will compress the elastic member 4, one end of the insert needle body 21 away from the protrusion 211 will extend into the position of the injection port of the workpiece 100 to be cast, and when the mold clamping driving member drives the pressing block 51 away from the sliding block 22, the sliding block 22 will release the restriction on the insert needle body 21, the elastic member 4 will drive the insert needle body 21 to move, and the insert needle body 21 will be separated from the injection port of the workpiece 100 to be cast. In this embodiment, the pressing block 51 may stably push the insert pin body 21.

In an embodiment, as shown in fig. 1 and 2, the pressing block 51 is further provided with a second mounting hole and a third mounting hole, the mold clamping driving assembly 5 further comprises a sprue 52 installed in the second mounting hole and a material pulling needle 53 installed in the third mounting hole, the sprue 52 is used for inputting liquid casting material into the inner hole of the insert needle assembly 2, and the material pulling needle 53 is used for pulling a solid piece formed in the insert needle assembly 2. It will be appreciated that liquid casting material is injected into the mould cavity 11 through the sprue 52 and the insert pin assembly 2, and that when the die-breaking structure is in the open state, the material-pulling pin 53 will move the solidified solid part in the insert pin assembly 2 so as to separate the solidified solid part in the insert pin assembly 2 from the workpiece 100 to be cast in the mould cavity 11.

In an embodiment, as shown in fig. 1 and fig. 2, two first through holes 31 are disposed on the die body 1 at intervals, a plurality of first mounting holes are disposed on the periphery of each first through hole 31, all the insert pin assemblies 2 are slidably mounted in each first through hole 31, a material injection groove 14 is disposed between the two insert pin assemblies 2 and is disposed on the die body 1, the material injection groove 14 is communicated with the inner holes of the two insert pin assemblies 2, and the sprue 52 is used for inputting liquid casting material into the material injection groove 14. As can be appreciated, the sprue 52 injects the liquid casting material into the injection groove 14, the liquid casting material in the injection groove 14 may flow into the inner holes of the two insert pin assemblies 2, and the liquid casting material in the two insert pin assemblies 2 may be split into the two mold cavities 11, so that the glue-breaking structure may complete the casting of the two workpieces 100 to be cast, and the casting efficiency of the glue-breaking structure may be improved.

The utility model further provides a die mechanism, which comprises the glue breaking port structure.

The foregoing embodiments are merely illustrative of the technical solutions of the present invention, and not restrictive, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that modifications may still be made to the technical solutions described in the foregoing embodiments or equivalent substitutions of some technical features thereof, and that such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. The glue breaking port structure is characterized by comprising a die body, a needle embedding assembly, a supporting block and a plurality of elastic pieces, wherein a die cavity for manufacturing a workpiece to be cast and a containing groove communicated with the die cavity are formed in the die body;

The support block is provided with a first through hole and a plurality of first mounting holes which are circumferentially arranged around the first through hole at intervals, the elastic pieces are arranged in the first mounting holes in a one-to-one correspondence mode, the insert pin assembly is movably arranged in the first through hole, the insert pin assembly is provided with protruding portions which are abutted to all the elastic pieces, and one end, away from the protruding portions, of the insert pin assembly extends into or withdraws from a glue injection port of a workpiece to be cast.

2. The glue break structure according to claim 1, wherein a limiting hole is provided between the support block and the die body, the protruding portion is slidably mounted in the limiting hole, and the limiting hole and the protruding portion are used for limiting a movement stroke of the insert pin assembly.

3. The glue breaking structure according to claim 2, wherein the die body is further provided with a sliding hole communicated with the limiting hole, the insert pin assembly comprises an insert pin body provided with the convex part and a sliding block slidably installed in the sliding hole, the insert pin body is slidably installed in the first through hole, and the sliding block is abutted with the insert pin body;

The sliding block is provided with a second through hole communicated with the inner hole of the needle embedding body.

4. The glue break structure of claim 1, further comprising a clamp drive assembly for driving the insert pin assembly to move in the first through bore.

5. The glue break structure according to claim 4, wherein the mold closing driving assembly comprises a mold closing driving member and a pressing block arranged at an output end of the mold closing driving member, and the mold closing driving member is used for driving the pressing block to move so that the pressing block drives the insert pin assembly to move in the first through hole.

6. The glue breaking structure according to claim 5, wherein the pressing block is further provided with a second mounting hole and a third mounting hole, the die assembly driving assembly further comprises a sprue bushing installed in the second mounting hole and a material pulling needle installed in the third mounting hole, the sprue bushing is used for inputting liquid casting material into an inner hole of the insert needle assembly, and the material pulling needle is used for pulling a solid part formed in the insert needle assembly.

7. The glue breaking structure according to claim 6, wherein two first through holes are arranged on the die body at intervals, a plurality of first mounting holes are arranged on the periphery of each first through hole, and all the insert pin assemblies are slidably mounted in each first through hole;

The die body is also provided with a material injection groove positioned between the two insert pin assemblies, the material injection groove is communicated with the inner holes of the two insert pin assemblies, and the sprue is used for inputting liquid casting materials into the material injection groove.

8. A mould mechanism comprising a glue-breaking structure as claimed in any one of claims 1 to 7.