CN216068405U

CN216068405U - Injection mold with cavity replacement function

Info

Publication number: CN216068405U
Application number: CN202122498365.XU
Authority: CN
Inventors: 陈春华
Original assignee: Hangzhou Weituo Precision Technology Co ltd
Current assignee: Hangzhou Weituo Precision Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-03-18
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses an injection mold with a cavity replacing function, and relates to the technical field of injection molds. According to the utility model, the rotating shafts are rotatably connected at four corners inside the upper die frame, the clamping plates are fixedly connected at the bottoms of the rotating shafts, the driven sprockets are fixedly connected at the tops of the rotating shafts, the four groups of driven sprockets are driven by the chains to rotate simultaneously, and the four groups of clamping plates can be further enabled to extend into the four corners inside the die cavity.

Description

Injection mold with cavity replacement function

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with a cavity replacing function.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

An authority publication No. CN 212288490U's a chinese patent discloses an injection mold who possesses die cavity replacement function, wherein can't carry out quick change to injection mold in order to solve prior art, through the tapered slot hole, the installation rectangular channel, the regulating pin, drive cooperation between sloping block and the special-shaped fixture block, with the quick installation of male mold core and female mold core on mould and link block, change injection mold's die cavity that can be quick through changing male mold core and female mold core, but need rotate two sets of regulating pins when changing to the die cavity and just can fix spacingly to the die cavity, it is comparatively troublesome to operate, and two sets of regulating pins isotructure are located the die cavity both sides, the atress is inhomogeneous when the die cavity is fixed, lead to overall stability relatively poor.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide an injection mold with a cavity replacement function, so as to solve the technical problems that the whole operation process is troublesome and the stress of a cavity is uneven when the cavity is fixed due to the fact that a fastening mechanism needs to be manually adjusted to fix the cavity in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an injection mold with a cavity replacement function comprises a lower mold frame and a mold core arranged in the lower mold frame, wherein an upper mold frame matched with the lower mold frame is arranged at the top of the lower mold frame, and a cavity matched with the mold core is arranged at the bottom end in the upper mold frame;

go up the inside four corners department of die carrier and all rotate and be connected with the pivot, four groups all fixedly connected with in pivot bottom extends to the inside block board of die cavity, four groups all fixedly connected with driven sprocket in pivot top, four groups the driven sprocket outside is provided with the chain, the decurrent motor of output is installed to the intermediate position department of the inside one side of last die carrier the motor output is connected with the driving sprocket with chain matched with.

By adopting the technical scheme, the rotating shafts are rotatably connected at the four corners inside the upper die frame, the clamping plates are fixedly connected at the bottoms of the rotating shafts, the driven chain wheels are fixedly connected at the tops of the rotating shafts, the four groups of driven chain wheels are driven by the chains to rotate simultaneously, and the four groups of clamping plates can rotate to extend into the four corners inside the die cavity.

The utility model is further arranged in such a way that a cover plate matched with the upper die frame is arranged at the top of the upper die frame, and empty slots matched with the four groups of driven sprockets, the driving sprocket, the motor and the chain are formed in the cover plate.

By adopting the technical scheme, the four groups of driven sprockets, the driving sprocket, the motor and the chain are covered and protected.

The utility model is further provided that the two sides of the bottom of the lower die frame are fixedly provided with square irons, and the bottoms of the two groups of square irons are fixedly connected with a bottom plate.

By adopting the technical scheme, the square iron and the bottom plate play a role in supporting the die, and are convenient to be connected with an external supporting structure.

The utility model is further provided with a top plate at the top of the bottom plate, ejector rods which penetrate through the lower die set and extend into the die core are arranged at four corners of the top plate, and reset springs are arranged on the outer sides of the four groups of ejector rods.

Through adopting above-mentioned technical scheme, the ejector pin plays the drawing of patterns effect to injection moulding product.

The utility model is further arranged in such a way that the four corners of the top of the mold core are provided with positioning blocks extending into the mold cavity, the four corners of the bottom of the upper mold frame are provided with positioning rods extending into the lower mold frame, and the four corners of the top of the lower mold frame are provided with positioning holes matched with the positioning rods.

Through adopting above-mentioned technical scheme, the locating piece plays the fixed positioning effect to core and die cavity, and the cooperation between locating lever and the locating hole plays the positioning effect of die carrier and last die carrier down.

In summary, the utility model mainly has the following beneficial effects: according to the utility model, the rotating shafts are rotatably connected at four corners inside the upper die frame, the clamping plates are fixedly connected at the bottoms of the rotating shafts, the driven sprockets are fixedly connected at the tops of the rotating shafts, the four groups of driven sprockets are driven by the chains to rotate simultaneously, and the four groups of clamping plates can be further enabled to extend into the four corners inside the die cavity.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is an enlarged schematic view of the internal structure of the present invention;

fig. 3 is a schematic structural diagram of the whole of the present invention.

In the figure: 1. a lower die frame; 2. feeding a mold frame; 3. a core; 4. a cavity; 5. a rotating shaft; 6. a driven sprocket; 7. a chain; 8. a clamping plate; 9. a motor; 10. a drive sprocket; 11. a cover plate; 12. square iron; 13. a base plate; 14. a top plate; 15. a top rod; 16. a return spring; 17. positioning blocks; 18. positioning a rod; 19. and (7) positioning the holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

An injection mold with a cavity replacement function, as shown in fig. 1, 2 and 3, comprises a lower mold frame 1 and a mold core 3 arranged in the lower mold frame 1, wherein the top of the lower mold frame 1 is provided with an upper mold frame 2 matched with the lower mold frame, and the bottom end in the upper mold frame 2 is provided with a cavity 4 matched with the mold core 3;

go up the inside four corners department of die carrier 2 and all rotate and be connected with pivot 5, the 5 bottom all fixedly connected with of four group's pivots extends to the inside snap-fastener 8 of die cavity 4, the 5 top all fixedly connected with driven sprocket 6 of four group's pivots, the 6 outside of four group's driven sprocket is provided with chain 7, the intermediate position department of the inside one side of die carrier 2 installs the decurrent motor 9 output and is connected with the drive sprocket 10 with chain 7 matched with, make motor 9 drive the motion of chain 7 through drive sprocket 10, at this moment, drive four group's driven sprocket 6 simultaneously through chain 7 and rotate, and then can make four group's snap-fastener 8 rotate and stretch into the inside four corners department of die cavity 4, go up die carrier 2 top and be provided with its matched with apron 11, and apron 11 inside seted up with four group's driven sprocket 6, drive sprocket 10, motor 9 and chain 7 matched with dead slots.

Referring to fig. 1 and 3, square irons 12 are fixedly arranged on two sides of the bottom of a lower die carrier 1, bottoms of two groups of square irons 12 are fixedly connected with a bottom plate 13, a top plate 14 is arranged on the top of the bottom plate 13, ejector rods 15 penetrating through the lower die carrier 1 and extending into a die core 3 are arranged at four corners of the top plate 14, and return springs 16 are arranged on outer sides of the four groups of ejector rods 15.

Referring to fig. 1 and 3, the four corners of the top of the mold core 3 are all provided with positioning blocks 17 extending into the mold cavity 4, the four corners of the bottom of the upper mold frame 2 are all provided with positioning rods 18 extending into the lower mold frame 1, and the four corners of the top of the lower mold frame 1 are all provided with positioning holes 19 matched with the positioning rods 18.

The working principle of the utility model is as follows: when in use, the whole body of the utility model is connected with an external injection molding machine through external equipment, so that the injection molding work can be carried out on an injection molding cavity formed between the mold core 3 and the mold cavity 4;

when the cavity 4 needs to be replaced, the motor 9 is started, the motor 9 drives the chain 7 to move through the driving chain wheel 10, then the chain 7 simultaneously drives the four groups of driven chain wheels 6 to rotate in the same direction, and under the action of the rotating shaft 5, the four groups of clamping plates 8 are simultaneously separated from the cavity 4, so that the cavity 4 can be taken out;

then, after the cavity 4 to be replaced is placed in the upper die carrier 2, the motor 9 is started reversely, the motor 9 drives the chain 7 to move through the driving chain wheel 10, at the moment, the four groups of driven chain wheels 6 are driven to rotate through the chain 7 at the same time, and then the four groups of clamping plates 8 can rotate to extend into four corners in the cavity 4;

according to the utility model, the clamping operation after replacing the cavity 4 is not required to be carried out manually, and the clamping plates 8 at the four corners are clamped and fixed on the cavity 4 more stably, so that the cavity 4 is more stable in the later injection molding process, the whole stress is more uniform, the using effect is better, and the whole operation process is simpler and more convenient.

Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.

Claims

1. The utility model provides an injection mold who possesses die cavity replacement function, includes die carrier (1) and its inside core (3) that sets up, its characterized in that down: an upper die frame (2) matched with the lower die frame (1) is arranged at the top of the lower die frame, and a cavity (4) matched with the core (3) is arranged at the bottom end inside the upper die frame (2);

go up inside four corners department of die carrier (2) and all rotate and be connected with pivot (5), four groups pivot (5) bottom all fixedly connected with extends to inside block board (8) of die cavity (4), four groups pivot (5) top all fixedly connected with driven sprocket (6), four groups driven sprocket (6) outside is provided with chain (7), the intermediate position department of going up inside one side of die carrier (2) installs motor (9) that the output is decurrent motor (9) output is connected with and chain (7) matched with drive sprocket (10).

2. The injection mold with a cavity replacing function according to claim 1, wherein: the top of the upper die frame (2) is provided with a cover plate (11) matched with the upper die frame, and empty grooves matched with the four groups of driven sprockets (6), the driving sprocket (10), the motor (9) and the chain (7) are formed in the cover plate (11).

3. The injection mold with a cavity replacing function according to claim 1, wherein: the two sides of the bottom of the lower die carrier (1) are fixedly provided with square irons (12), and the bottoms of the two sets of square irons (12) are fixedly connected with a bottom plate (13).

4. An injection mold with a cavity replacing function according to claim 3, characterized in that: the top of the bottom plate (13) is provided with a top plate (14), four corners of the top plate (14) are provided with ejector rods (15) which penetrate through the lower die carrier (1) and extend to the inside of the die core (3), and the outer sides of the four groups of ejector rods (15) are provided with return springs (16).

5. The injection mold with a cavity replacing function according to claim 1, wherein: the die core (3) top four corners department all is provided with locating piece (17) that extend to die cavity (4) inside, go up die carrier (2) bottom four corners department and all be provided with locating lever (18) that extend to die carrier (1) inside down, die carrier (1) top four corners department all offers locating hole (19) with locating lever (18) matched with down.