CN216579032U

CN216579032U - Cutting device for injection mold sprue

Info

Publication number: CN216579032U
Application number: CN202122510116.8U
Authority: CN
Inventors: 洪昌兴
Original assignee: Hanjiang Mould Technology Suzhou Co ltd
Current assignee: Hanjiang Mould Technology Suzhou Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-05-24
Anticipated expiration: 2031-10-19

Abstract

The utility model provides a cutting device for a sprue of an injection mold, which comprises a cutting plate, wherein the right end of the cutting plate is fixedly connected with a top block, a second magnet block is arranged on the upper side of the right end of the top block, a first magnet block is arranged on the right side of the second magnet block, the first magnet block and the second magnet block are mutually adsorbed and arranged, the right end of the first magnet block is fixedly connected with a T-shaped plate, the left end of the T-shaped plate is slidably connected with an extrusion block, the right side of the lower end of the extrusion block is fixedly connected with a top plate jacked by a lower mold, a first inclined surface is processed on the right lower end of the top block, a second inclined surface which is obliquely arranged in a low-left mode is arranged on the left upper end of the extrusion block, and the second inclined surface and the first inclined surface are mutually slidably connected.

Description

Cutting device for injection mold sprue

Technical Field

The utility model discloses a cutting device for a sprue of an injection mold, and belongs to the technical field of injection mold accessories.

Background

Injection molds, tools used in the plastic processing industry to match plastic molding machines and impart complete configurations and precise dimensions to plastic articles, are often made of stainless steel or the like, when the injection mould works, the molten material is usually fed into the forming cavity of the injection mould through the sprue gate to further carry out injection moulding operation, when demoulding, the position of a sprue of an injection molding part is required to be cut off, the existing cutting device for the sprue of the injection molding mould is generally provided with a cutter mechanism on the sprue, the cutter mechanism is connected with the injection mould by utilizing the spring structure, and the cutter mechanism can move under the action of the spring structure, however, the injection mold itself has a high temperature during operation, so that the spring structure can be used in a high-temperature environment, the service life of the spring structure can be affected, and the use effect is poor.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a cutting device for a sprue of an injection mold, which aims to solve the problems in the background art.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a cutting device for injection mold runner, includes the cutting off board, cutting off board right-hand member fixed connection kicking block, kicking block right-hand member upside installation second magnet piece, second magnet piece right side sets up first magnet piece and second magnet piece adsorbs each other and arranges, first magnet piece right-hand member fixed connection inlays the T template in last mould outer end, T template left end sliding connection extrusion piece and extrusion piece upside set up first magnet piece and second magnet piece, extrusion piece lower extreme right side fixed connection is by roof and the T template sliding connection of lower mould jack-up, the first inclined plane of kicking block right side lower extreme processing and first inclined plane are in second magnet piece downside, the second inclined plane and the first inclined plane mutual sliding connection of first inclined plane that the high slope of low right side was arranged are seted up to extrusion piece upper left end.

Furthermore, the four corner positions at the right end of the second magnet block are fixedly connected with the fixing parts of the telescopic rod, the fixing parts of the telescopic rod penetrate through the second magnet block and are fixed with the top block, and the movable part of the telescopic rod is fixedly connected with the first magnet block.

Furthermore, a protection piece is installed on the right side of the upper end of the extrusion block, and a first magnet block is arranged at the upper end of the protection piece.

Further, a groove is formed in the right end of the top plate, a third magnet block is fixedly connected to the bottom end inside the groove, a fourth magnet block is mounted above the third magnet block and located in the groove, the third magnet block and the fourth magnet block are mutually exclusive and arranged, and the fourth magnet block is fixedly connected with the T-shaped plate.

Further, roof lower extreme symmetry sets up two bolts, and the bolt passes the roof and extends to the inside top of recess, the bolt runs through third magnet piece and fourth magnet piece and with third magnet piece and fourth magnet piece sliding connection.

Furthermore, two threaded holes are symmetrically formed in the top end of the inner portion of the groove, and the upper end of the bolt is in threaded connection with the threaded holes and extends into the threaded holes.

Furthermore, a pouring hole communicated with the upper die pouring gate is formed in the cutting plate, and the annular inner wall of the pouring hole is fixedly connected with the annular inner cutter.

The utility model has the beneficial effects that: the utility model relates to a cutting device for a sprue of an injection mold.

1. Under first magnet piece and the cooperation of second magnet piece are used, can drive cutting off board and kicking block and remove rightly to make the sprue hole on the cutting off board take place crisscross with last mould runner, thereby utilize annular inner cutter, cut off the runner, make follow-up the ability normal work of moulding plastics, realize utilizing magnet structure to replace traditional spring structure, promote life, increase result of use.

2. When the upper die and the lower die are assembled, the top plate and the extrusion block can move upwards, the top block and the cutting plate can move leftwards under the action of the second inclined surface and the first inclined surface, so that the pouring hole is communicated with the pouring gate of the upper die again, after the upper die and the lower die are assembled, the lower die releases the extrusion on the top plate, the top plate and the extrusion block can move downwards under the action of the mutual repulsive force of the third magnet block and the fourth magnet block, so that the extrusion block is separated from the top block, the cutting plate can move rightwards under the action of the mutual attractive force of the first magnet block and the second magnet block, and further the pouring gate cutting operation is carried out, so that the pouring gate is automatically and mechanically cut off, the energy consumption is reduced, and the production cost is reduced.

3. The bolt can be passed the roof to run through third magnet piece and fourth magnet piece, make bolt and screw hole threaded connection again, make the convenient dismouting of bolt, convenient dismouting between the third magnet piece of being convenient for and the fourth magnet piece realizes convenient dismouting between roof and the T template, the equipment of being convenient for and maintenance.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of a cutting apparatus for an injection mold gate according to the present invention;

FIG. 2 is a schematic view of a top block of a cutting apparatus for an injection mold gate of the present invention;

FIG. 3 is a cross-sectional view of an extrusion block of a cutting apparatus for an injection mold gate of the present invention;

fig. 4 is an assembly view of a cutting device for an injection mold gate of the present invention.

In the figure: the mold comprises a 1-T-shaped plate, a 2-first magnet block, a 3-telescopic rod, a 4-second magnet block, a 5-top block, a 6-cutting plate, a 7-extrusion block, an 8-top plate, a 51-first inclined surface, a 61-pouring hole, a 62-annular inner cutter, a 71-rubber pad, a 72-second inclined surface, a 81-third magnet block, a 82-fourth magnet block, a 83-bolt, a 84-groove, a 100-upper mold and a 101-lower mold.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1-4, the present invention provides a technical solution: a cutting device for an injection mold sprue comprises a cutting plate 6, a top block 5 is fixedly connected to the right end of the cutting plate 6, a pouring hole 61 communicated with a sprue of an upper mold 100 is formed in the cutting plate 6, pouring operation is achieved through the pouring hole 61, an annular inner cutter 62 is fixedly connected to the annular inner wall of the pouring hole 61, sprue cutting operation is achieved through the annular inner cutter 62, a second magnet block 4 is installed on the upper side of the right end of the top block 5, a first magnet block 2 is arranged on the right side of the second magnet block 4, the first magnet block 2 and the second magnet block 4 are mutually adsorbed and arranged, the first magnet block 2 and the second magnet block 4 are matched for use, the cutting plate 6 and the top block 5 can move, four corner positions of the right end of the second magnet block 4 are fixedly connected with a fixed portion of a telescopic rod 3, the fixed portion of the telescopic rod 3 penetrates through the second magnet block 4 and is fixed with the top block 5, a movable portion of the telescopic rod 3 is fixedly connected with the first magnet block 2, through telescopic link 3, on the one hand remove to the second magnet piece 4 and lead, on the other hand make and be connected between first magnet piece 2 and the second magnet piece 4, the T template 1 of inlaying in last mould 100 outer end is inlayed to 2 right-hand member fixed connection of first magnet piece, through T template 1, can provide the installation carrier for first magnet piece 2 and fourth magnet piece 82.

Specifically, because of first magnet piece 2 and the mutual absorption of second magnet piece 4 arrange, so move down the in-process at extrusion piece 7 and roof 8, can make second magnet piece 4 remove right, and then drive cutting plate 6 and kicking block 5 remove right, thereby make pouring hole 61 on the cutting plate 6 and go up mould 100 runner and take place crisscross, thereby utilize annular inner cutter 62, cut off the runner, make follow-up the ability normal work of moulding plastics, realize utilizing the magnet structure to replace traditional spring structure, promote life, increase the result of use, and go up mould 100 and lower mould 101 and all have the stainless steel to make, can paint special lacquer on the corresponding installation cavity inner wall of spare part and realize antimagnetic function, be used for satisfying the normal work of magnet structure.

The left end of the T-shaped plate 1 is connected with the extrusion block 7 in a sliding way, the upper side of the extrusion block 7 is provided with a first magnet block 2 and a second magnet block 4, the right side of the upper end of the extrusion block 7 is provided with a protection piece, the extrusion block 7 and the first magnet block 2 are effectively prevented from directly impacting through the protection piece, the protection piece has good safety, the protection piece can adopt a rubber pad 71, the upper end of the protection piece is provided with the first magnet block 2, the right side of the lower end of the extrusion block 7 is fixedly connected with a top plate 8 jacked up by a lower die 101, the top plate 8 is connected with the T-shaped plate 1 in a sliding way, on one hand, the extrusion block 7 is provided with an installation carrier, on the other hand, the extrusion block 7 can move, the right lower end of the top block 5 is provided with a first inclined surface 51, the first inclined surface 51 is positioned at the lower side of the second magnet block 4, the upper left end of the extrusion block 7 is provided with a second inclined surface 72 which is obliquely arranged in a lower right direction, and the upper left direction, and the second inclined surface 72 is connected with the first inclined surface 51 in a sliding way, the first inclined surface 51 and the second inclined surface 72 are matched for use, upward movement can be converted into leftward movement, a groove 84 is formed in the right end of the top plate 8, installation space is provided for the third magnet block 81 and the fourth magnet block 82 through the groove 84, the bottom end inside the groove 84 is fixedly connected with the third magnet block 81, the fourth magnet block 82 is installed above the third magnet block 81, the fourth magnet block 82 is located in the groove 84, the third magnet block 81 and the fourth magnet block 82 are arranged in a mutually exclusive mode, the third magnet block 81 and the fourth magnet block 82 are matched for use, the top plate 8 can move downwards, and the fourth magnet block 82 is fixedly connected with the T-shaped plate 1.

Specifically, when the upper mold 100 and the lower mold 101 are closed, the top plate 8 is moved upward, and the pressing block 7 is further moved upward, so that the second inclined surface 72 is brought into contact with the first inclined surface 51, and the pressing block 7 is further moved upward, and the top block 5 and the cutting plate 6 are moved leftward by the second inclined surface 72 and the first inclined surface 51, so that the gate 61 and the gate of the upper mold 100 are re-communicated, and then the normal injection molding operation is performed, and after the upper mold 100 and the lower mold 101 are opened, the lower mold 101 releases the pressing of the top plate 8, and at this time, the top plate 8 and the pressing block 7 are moved downward by the repulsive force of the third magnet block 81 and the fourth magnet block 82, and the pressing block 7 and the top block 5 are separated, and the cutting plate 6 is moved rightward by the attractive force of the first magnet block 2 and the second magnet block 4, the sprue is automatically and mechanically cut off, energy consumption is reduced, and production cost is reduced.

Two bolts 83 are symmetrically arranged at the lower end of the top plate 8, the bolts 83 are used for installing the third magnet block 81 and the fourth magnet block 82 in a linkage manner, the fourth magnet block 82 is moved to be guided, the bolts 83 penetrate through the top plate 8 and extend to the top end inside the groove 84, the bolts 83 penetrate through the third magnet block 81 and the fourth magnet block 82 and are in sliding connection with the third magnet block 81 and the fourth magnet block 82, two threaded holes are symmetrically formed in the top end inside the groove 84, the bolts 83 are convenient to disassemble and assemble through threaded holes, the bolts 81 and the fourth magnet block 82 are convenient to disassemble and assemble, and the bolts 83 are connected with threaded holes in an upper end in a threaded mode and extend into the threaded holes.

Specifically, place roof 8 at first to T template 1 left end, and make fourth magnet piece 82 assign and insert in recess 84, fourth magnet piece 82 is in third magnet piece 81 upside this moment, then pass roof 8 with bolt 83, and run through third magnet piece 81 and fourth magnet piece 82, make bolt 83 and screw hole threaded connection again, make the convenient dismouting of bolt 83, be convenient for convenient dismouting between third magnet piece 81 and the fourth magnet piece 82, realize convenient dismouting between roof 8 and the T template 1, be convenient for equipment and maintenance.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A cutting device for an injection mold gate, characterized by: comprises a cutting board (6), the right end of the cutting board (6) is fixedly connected with a top block (5), a second magnet block (4) is arranged on the upper side of the right end of the top block (5), a first magnet block (2) is arranged on the right side of the second magnet block (4), the first magnet block (2) and the second magnet block (4) are mutually adsorbed and arranged, the right end of the first magnet block (2) is fixedly connected with a T-shaped plate (1) embedded at the outer end of an upper die (100), the left end of the T-shaped plate (1) is slidably connected with an extrusion block (7) and the upper side of the extrusion block (7) is provided with the first magnet block (2) and the second magnet block (4), the right end of the extrusion block (7) is fixedly connected with a top plate (8) and the top plate (8) which are jacked by a lower die (101) and is slidably connected with the T-shaped plate (1), a first inclined plane (51) and a first inclined plane (51) are processed at the lower side of the right lower end of the top block (5), the left upper end of the extrusion block (7) is provided with a second inclined surface (72) which is obliquely arranged from low left to high right, and the second inclined surface (72) is mutually connected with the first inclined surface (51) in a sliding manner.

2. The cutoff device for an injection mold gate according to claim 1, wherein: the four corner positions at the right end of the second magnet block (4) are fixedly connected with the fixing parts of the telescopic rod (3), the fixing parts of the telescopic rod (3) penetrate through the second magnet block (4) and are fixed with the top block (5), and the movable part of the telescopic rod (3) is fixedly connected with the first magnet block (2).

3. The cutoff device for an injection mold gate according to claim 1, wherein: and a protection piece is arranged on the right side of the upper end of the extrusion block (7), and a first magnet block (2) is arranged at the upper end of the protection piece.

4. The cutoff device for an injection mold gate according to claim 1, wherein: recess (84) are seted up to roof (8) right-hand member, the inside bottom fixed connection third magnet piece (81) of recess (84), third magnet piece (81) top installation fourth magnet piece (82) and fourth magnet piece (82) are in recess (84), third magnet piece (81) and fourth magnet piece (82) mutual repulsion arrange, fourth magnet piece (82) and T template (1) fixed connection.

5. The cutoff device for an injection mold gate according to claim 4, wherein: roof (8) lower extreme symmetry sets up two bolt (83), and bolt (83) pass roof (8) and extend to the inside top of recess (84), bolt (83) run through third magnet piece (81) and fourth magnet piece (82) and with third magnet piece (81) and fourth magnet piece (82) sliding connection.

6. The cutoff device for an injection mold gate according to claim 5, wherein: two threaded holes are symmetrically formed in the top end of the inner portion of the groove (84), and the upper end of the bolt (83) is in threaded connection with the threaded holes and extends into the threaded holes.

7. The cutoff device for an injection mold gate according to claim 1, wherein: and a pouring hole (61) communicated with a pouring gate of the upper die (100) is formed in the cutting plate (6), and an annular inner cutter (62) is fixedly connected to the annular inner wall of the pouring hole (61).