CN219505314U

CN219505314U - Injection mold with mould closing position correcting structure

Info

Publication number: CN219505314U
Application number: CN202223589834.XU
Authority: CN
Inventors: 童方军; 曹四方
Original assignee: Shang Mingwei Plastic Technology Suzhou Co ltd
Current assignee: Shang Mingwei Plastic Technology Suzhou Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-08-11
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold with a mold closing position correcting structure, which comprises: the upper seat is used for connecting an injection cavity, and positioning parts for correcting the mold closing positions are arranged on two sides of the bottom of the upper seat; the base, install four guide bars on the base, four the guide bar upper end with go up the seat and connect, be provided with the bolt portion that is used for every location portion to correspond the location on the base. According to the utility model, through the positioning block, the positioning pin and the bolt hole, fine adjustment and correction during die assembly between the upper die cavity and the lower die cavity are conveniently realized, accurate butt joint is ensured, and larger burrs are avoided after plastic products are molded; meanwhile, by arranging the bolts, the tension springs, the clamping grooves and the clamping blocks, the phenomenon that the quality of products is affected due to large deflection in the ascending or descending process of the upper die cavity can be avoided.

Description

Injection mold with mould closing position correcting structure

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with a mold closing position correcting structure.

Background

The injection mold is a container tool for producing plastic products, the injection mold is generally divided into an injection upper mold and an injection lower mold, the inner sides of the injection upper mold and the injection lower mold are respectively provided with a cavity, and after the injection upper mold and the injection lower mold are closed, the internal cavities of the injection upper mold and the injection lower mold are combined to form a complete cavity, so that plastic is conveniently poured and cooled to form, and finally the needed plastic products are manufactured.

However, when the existing injection mold is used for closing the mold, the butt joint positioning accuracy is poor only through the guide rod, so that the cavities of the injection upper mold and the injection lower mold cannot be accurately butt-jointed, further, burrs of a product subjected to injection are serious, and the burrs are required to be manually removed; and the injection mold is inconvenient to lock the injection upper mold and the injection lower mold after the mold closing is completed, so that the forming shape of the plastic product in the injection mold is easy to damage, and the quality of the product is affected. In view of this, we propose an injection mold with a mold clamping position correcting structure.

Disclosure of Invention

In order to overcome the defects, the utility model provides an injection mold with a mold clamping position correcting structure.

The technical scheme of the utility model is as follows:

an injection mold with a mold clamping position correcting structure, comprising:

the upper seat is used for connecting an injection cavity, and positioning parts for correcting the mold closing positions are arranged on two sides of the bottom of the upper seat; each of the positioning portions includes: the positioning block is fixedly arranged on the upper seat, is arranged on the side surface of the upper die cavity and is obliquely inserted and fixed with a positioning pin.

The base, install four guide bars on the base, four the guide bar upper end with go up the seat and connect, be provided with the bolt portion that is used for every location portion to correspond the location on the base.

Further, an upper die cavity is arranged in the middle of the bottom of the upper seat, and the upper die cavity is in through connection with the injection molding cavity.

Further, a lower die cavity is formed in the middle of the upper part of the base, and the area of the lower die cavity is smaller than that of the upper die cavity.

Further, a plurality of clamping blocks are fixed on the left side wall and the right side wall of the lower die cavity, and the clamping blocks are vertically distributed at equal intervals.

Further, connecting plates are further connected above the four guide rods, two connecting plates are arranged in a cross symmetry mode, and the two connecting plates are arranged above the upper seat.

Further, the two connecting plates are provided with power sources for driving the upper seat to move.

Further, each of the plug pin portions includes:

the fixed plate, the fixed plate sets up in the base side, and is provided with the bolt on the fixed plate, the bolt front end is provided with the movable block.

Further, a bolt hole is formed in the moving block, and the bolt hole and the positioning pin are fixed in a plug-in mode.

Further, the front end of the moving block is provided with a plurality of clamping grooves, and each clamping groove is clamped with a clamping block of the lower die cavity.

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

1. the utility model can cover the surface of the lower die cavity 21 by the upper die cavity because the area of the lower die cavity is smaller than that of the upper die cavity, thereby keeping the upper die cavity and the lower die cavity locked and improving the accuracy.

2. According to the utility model, through the positioning block, the positioning pin and the bolt hole, fine adjustment and correction during die assembly between the upper die cavity and the lower die cavity are conveniently realized, accurate butt joint is ensured, and larger burrs are avoided after the plastic product is molded.

3. According to the utility model, the bolt, the tension spring, the clamping groove and the clamping block are arranged, so that the bolt hole can be slowly and sequentially moved out of the cylindrical groove and the bolt hole, and the clamping groove at the front end of the moving block can be slowly separated from the clamping block on the lower die cavity, thereby avoiding larger deflection in the ascending or descending process of the upper die cavity and affecting the quality of products.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the upper seat (bottom view) of the present utility model;

FIG. 3 is a schematic view of a base structure of the present utility model;

fig. 4 is a schematic view of a latch structure of the present utility model.

In the figure:

1. an upper seat; 11. an upper die cavity; 12. a positioning block; 13. a positioning pin;

2. a base; 21. a lower die cavity; 22. a guide rod; 23. a connecting plate; 24. an electric cylinder; 25. a plug pin part; 251. a fixing plate; 252. a bolt; 253. a moving block; 254. a bolt hole; 255. a clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus 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 utility model.

Referring to fig. 1-4, the present utility model provides a technical solution:

the upper seat 1 is used for connecting an injection cavity, and positioning parts for correcting the die closing positions are arranged on two sides of the bottom of the upper seat 1; an upper die cavity 11 is arranged in the middle of the bottom of the upper seat 1, and the upper die cavity 11 is in through connection with the injection cavity; each positioning portion includes: the positioning block 12 is fixedly arranged on the upper seat 1, the positioning block 12 is arranged on the side surface of the upper die cavity 11, and the positioning pin 13 is obliquely inserted and fixed on the positioning block 12.

Through the positioning block 12 and the positioning pin 13, when the upper seat 1 is driven to move downwards by the electric cylinder 24, the positioning pin 13 and the bolt hole 254 can be fixed, so that fine adjustment and correction during die assembly between the upper die cavity 11 and the lower die cavity 21 are conveniently realized, accurate butt joint is ensured, and larger burrs are avoided after plastic products are molded; and the area of the lower die cavity 21 is smaller than that of the upper die cavity 11, so that the upper die cavity 11 covers the surface of the lower die cavity 21, the upper die cavity 11 and the lower die cavity 21 can be locked, and the accuracy is improved.

The base 2 is provided with four guide rods 22, the upper ends of the four guide rods 22 are connected with the upper seat 1, and the base 2 is provided with a bolt part 25 for corresponding positioning of each positioning part; the middle part above the base 2 is provided with a lower die cavity 21, and the area of the lower die cavity 21 is smaller than that of the upper die cavity 11; a plurality of clamping blocks are fixed on the left side wall and the right side wall of the lower die cavity 21, and the clamping blocks are vertically distributed at equal intervals; a connecting plate 23 is also connected above the four guide rods 22, two connecting plates 23 are arranged in a crossed symmetrical manner, and the two connecting plates 23 are arranged above the upper seat 1; the two connecting plates 23 are provided with power sources for driving the upper seat 1 to move; each plug pin portion 25 includes: the fixed plate 251, the fixed plate 251 is set up in the side of base 2, and there are bolts 252 on the fixed plate 251, the front end of the bolt 252 has moving blocks 253; the moving block 253 is provided with a bolt hole 254, and the bolt hole 254 and the positioning pin 13 are fixedly inserted; the front end of the moving block 253 is provided with a plurality of clamping grooves 255, and each clamping groove 255 is clamped with a clamping block of the lower die cavity 21.

In this embodiment, the power source is an electric cylinder 24, specifically, the electric cylinder 24 is fixedly mounted on two connecting plates 23, the upper ends of the two connecting plates 23 and four guide rods 22 are fixedly connected, and the piston rod of the electric cylinder 24 is fixedly connected with the top of the upper seat 1, and the upper seat 1 is slidably connected with the four guide rods 22.

In this embodiment, the bolt 252 is slidably connected to the fixed plate 251, and the bolt 252 is fixedly connected with a tension spring, the other end of the tension spring is fixedly connected to the moving block 253, the moving block 253 is slidably mounted on the base 2, a cylindrical groove is disposed on the base 2 opposite to each moving block 253, and each cylindrical groove is inserted into the positioning pin 13.

By providing four guide bars 22, when the electric cylinder 24 is driven to lower the upper seat 1, a preliminary guide effect can be achieved; then when the upper die cavity 11 and the lower die cavity 21 are locked, as the bolt holes 254 matched with the positioning pins 13 are formed in each moving block 253, and the cylindrical grooves matched with the positioning pins 13 are formed in the base 2, the positioning pins 13 can be inserted into the bolt holes 254 and then penetrate into the cylindrical grooves, and at the moment, the clamping grooves at the front ends of the moving blocks 253 are also clamped with the clamping blocks of the lower die cavity 21 one by one, so that correction during die assembly can be realized, and meanwhile, higher positioning precision can be ensured; after injection molding is completed, when the upper seat 1 is driven to move upwards, the bolt holes 254 can slowly and sequentially move out of the cylindrical grooves and the bolt holes 254, and under the action of the bolts 252 and the tension springs, the clamping grooves at the front ends of the moving blocks 253 can be slowly separated from the clamping blocks on the lower die cavity 21, so that large deflection in the ascending or descending process of the upper die cavity 11 can be avoided, and the quality of products is influenced.

When the electric cylinder 24 is driven to enable the upper seat 1 to descend, the electric cylinder can perform a preliminary guiding function by arranging four guide rods 22;

then when the upper die cavity 11 and the lower die cavity 21 are locked, as the bolt holes 254 matched with the positioning pins 13 are formed in each moving block 253, and the cylindrical grooves matched with the positioning pins 13 are formed in the base 2, the positioning pins 13 can be inserted into the bolt holes 254 and then penetrate into the cylindrical grooves, and at the moment, the clamping grooves at the front ends of the moving blocks 253 are also clamped with the clamping blocks of the lower die cavity 21 one by one, so that fine adjustment correction during die assembly between the upper die cavity 11 and the lower die cavity 21 is conveniently realized, accurate butt joint is ensured, and larger burrs are avoided after plastic products are formed;

at this time, the area of the lower die cavity 21 is smaller than that of the upper die cavity 11, so that the upper die cavity 11 covers the surface of the lower die cavity 21, and the upper die cavity 11 and the lower die cavity 21 can be locked, thereby improving the accuracy;

after injection molding is completed, when the upper seat 1 is driven to move upwards, the bolt holes 254 can slowly and sequentially move out of the cylindrical grooves and the bolt holes 254, and under the action of the bolts 252 and the tension springs, the clamping grooves at the front ends of the moving blocks 253 can be slowly separated from the clamping blocks on the lower die cavity 21, so that large deflection in the ascending or descending process of the upper die cavity 11 can be avoided, and the quality of products is influenced.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An injection mold with a mold clamping position correcting structure, comprising:

go up seat (1), go up seat (1) and be used for connecting the chamber of moulding plastics, go up seat (1) bottom both sides and all install the location portion that is used for correcting the compound die position, every location portion includes: the positioning block (12) is fixedly arranged on the upper seat (1), the positioning block (12) is arranged on the side surface of the upper die cavity (11), and a positioning pin (13) is obliquely inserted and fixed on the positioning block (12);

the base (2), install four guide bars (22) on base (2), four guide bars (22) upper end with go up seat (1) and connect, be provided with on base (2) and be used for every location portion to correspond bolt portion (25) of location.

2. The injection mold with mold clamping position correcting structure according to claim 1, wherein: an upper die cavity (11) is arranged in the middle of the bottom of the upper seat (1), and the upper die cavity (11) is in through connection with the injection molding cavity.

3. The injection mold with mold clamping position correcting structure according to claim 1, wherein: the middle part above the base (2) is provided with a lower die cavity (21), and the area of the lower die cavity (21) is smaller than that of the upper die cavity (11).

4. The injection mold with mold clamping position correcting structure as claimed in claim 3, wherein: a plurality of clamping blocks are fixed on the left side wall and the right side wall of the lower die cavity (21), and the clamping blocks are vertically distributed at equal intervals.

5. The injection mold with mold clamping position correcting structure according to claim 1, wherein: the four guide rods (22) are also connected with connecting plates (23), the connecting plates (23) are provided with two cross-symmetrical connecting plates, and the two connecting plates (23) are arranged above the upper seat (1).

6. The injection mold with mold clamping position correcting structure according to claim 5, wherein: the two connecting plates (23) are provided with power sources for driving the upper seat (1) to move.

7. The injection mold with mold clamping position correcting structure according to claim 1, wherein: each of the plug pin portions (25) includes:

the fixing plate (251), fixing plate (251) set up in base (2) side, and be provided with bolt (252) on fixing plate (251), bolt (252) front end is provided with movable block (253).

8. The injection mold with mold clamping position correcting structure as claimed in claim 7, wherein: the moving block (253) is provided with a bolt hole (254), and the bolt hole (254) and the positioning pin (13) are fixedly inserted.

9. The injection mold with mold clamping position correcting structure as claimed in claim 7, wherein: the front end of the moving block (253) is provided with a plurality of clamping grooves (255), and each clamping groove (255) is clamped with a clamping block of the lower die cavity (21).