CN219667355U

CN219667355U - Injection mold pouring port material breaking mechanism

Info

Publication number: CN219667355U
Application number: CN202320614504.7U
Authority: CN
Inventors: 林强
Original assignee: Shanghai Lingtian Precision Molding Co ltd
Current assignee: Shanghai Lingtian Precision Molding Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-09-12
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to a casting opening material cutting mechanism of an injection mold, and relates to the field of injection molds. According to the utility model, the cutting blocks are arranged on the die main body in a sliding manner, the cutting blocks are linked with the demolding mechanism, when injection molding is carried out, injection molding molten liquid can remain in the pouring openings of the cutting blocks, after cooling molding, the demolding mechanism is used for demolding a product, meanwhile, the cutting blocks are driven to move, and the cutting blocks can cut off the material blocks at the pouring openings, so that the die has a simple and practical structure.

Description

Injection mold pouring port material breaking mechanism

Technical Field

The utility model relates to the field of injection molds, in particular to a pouring opening and breaking mechanism of an injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a processing method used in mass production of parts with complex shapes, and specifically refers to injection molding of heated and melted plastic into a mold cavity by an injection molding machine under high pressure, and cooling and solidification are carried out to obtain a molded product.

In the related art, an injection mold comprises an upper mold and a lower mold, a molding cavity is formed between the upper mold and the lower mold, and a pouring opening is formed in the upper mold. During production, the upper die and the lower die are clamped, then high-temperature molten liquid is injected into the forming cavity from the pouring opening, and after the molten liquid is cooled, the product can be formed.

In practical use, it has been found that after the product is formed, the placement of the pouring orifice forms a block which needs to be cut. For this reason, the inventor provides an injection mold pouring mouth breaking mechanism.

Disclosure of Invention

In order to remove a material block at a pouring port, the utility model provides an injection mold pouring port material breaking mechanism.

The utility model provides an injection mold pouring port material breaking mechanism, which adopts the following technical scheme:

the utility model provides an injection mold pouring port breaking mechanism, includes the mould main part and sets up demoulding mechanism on the mould main part, set up the pouring port in the mould main part, it is provided with the cutting block to slide on the mould main part, the pouring port runs through the cutting block, the cutting block with demoulding mechanism linkage.

Through adopting above-mentioned technical scheme, slide on the mould main part and set up the cutting to with cutting and demoulding mechanism linkage, when moulding plastics, the melt of moulding plastics can remain in the pouring mouth of cutting, after cooling shaping, demoulding mechanism carries out the drawing of patterns to the product, drives simultaneously and cuts the piece and remove, and the piece can be cut off the piece of pouring mouth department, simple structure, practicality.

Optionally, demoulding mechanism includes roof and thimble, the thimble runs through the mould main part and is provided with a plurality of, the thimble is kept away from the one end of mould main part is fixed in on the roof, the roof is close to one side of mould main part is fixed with the ejector pin, the tip butt of ejector pin in on the cutting, the ejector pin with the cutting is close to one end each other and is provided with the wedge face that mutually supports, the wedge face is used for the top to move the cutting slides.

By adopting the technical scheme, the ejector rod is arranged at one side of the top plate, which is close to the die main body, and a wedge-shaped surface which is matched with each other is arranged between the ejector rod and the cut block; after the product is formed, the injection molding equipment drives the top plate to move to one side of the die main body, and the ejector rod can push the movable cutting block to slide to one side to cut the pouring port; meanwhile, the ejector pin can eject the product out of the die main body, so that demolding is realized.

Optionally, the die further comprises a sliding block, a sliding groove is formed in one side, close to the top plate, of the die main body, the sliding block slides and is arranged in the sliding groove, the sliding groove is arranged into a T-shaped groove, the sliding block is arranged into a T-shaped block, the end part of the ejector rod is abutted to the sliding block, the wedge-shaped surface is arranged on the sliding block, and the cutting block is connected to one end of the sliding block.

By adopting the technical scheme, the T-shaped sliding groove is formed in the die main body, the sliding block is arranged in the sliding groove, and the sliding groove and the sliding block can limit the sliding direction of the cut block, so that the cut block can be accurately cut and reset; meanwhile, the T-shaped sliding groove can limit the position of the sliding block and prevent the sliding block from being separated from the die main body.

Optionally, one end that the slider kept away from the slabbing is provided with the promotion the elastic component that the slider reset, the both ends of elastic component butt respectively the slider with the mould main part.

Through adopting above-mentioned technical scheme, set up the elastic component, drive the ejector pin at demoulding mechanism and drive the slabbing and remove the material after, demoulding mechanism can reset under injection molding equipment's drive, for the preparation of moulding plastics next time, at this moment, slider and slabbing can be under the effect of elastic component automatic re-setting, make the pouring mouth of slabbing and the pouring mouth coincidence of mould main part, conveniently mould plastics.

Optionally, a cutting edge is arranged on one side, close to or far away from the sliding block, of the pouring opening on the cutting block.

Through adopting above-mentioned technical scheme, set up the blade on the cutting piece, can cut off the material piece fast.

Optionally, the cutting edge extends to a side of the dicing block away from the die body to form a guide surface.

Through adopting above-mentioned technical scheme, set up the derivation face, when the blade excision to the material piece, the blade can produce certain extrusion force to the material piece, makes the material piece of excision can pop out along the derivation face, automatic discharging.

Optionally, the demoulding mechanism further comprises a guide rod, wherein a plurality of guide rods are distributed along the circumferential direction of the mould main body, the guide rod penetrates through the top plate and is in sliding fit with the top plate, one end, away from the mould main body, of the guide rod is provided with a limiting ring protrusion, and the limiting ring protrusion abuts against one side, away from the mould main body, of the top plate.

By adopting the technical scheme, the guide rod is arranged, and when the injection molding equipment drives the top plate to be demolded, the guide rod can guide the top plate, so that the ejector rod can accurately drive the cut block to discharge; the limiting ring is arranged at the end part of the guide rod, and the limiting ring can prevent the top plate from falling off from the guide rod.

Optionally, a return spring is sleeved on the guide rod.

By adopting the technical scheme, the top plate can be automatically reset by arranging the reset spring.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the die body is slidably provided with the cutting blocks, the cutting blocks are linked with the demolding mechanism, when injection molding is carried out, injection molding molten liquid can remain in the pouring openings of the cutting blocks, after cooling molding, the demolding mechanism is used for demolding a product, meanwhile, the cutting blocks are driven to move, and the cutting blocks can cut off the material blocks at the pouring openings, so that the die is simple in structure and practical;

2. the ejector rod is arranged on one side of the top plate, which is close to the die main body, and a wedge-shaped surface which is matched with the ejector rod is arranged between the ejector rod and the cutting block, after the product is formed, the injection molding equipment drives the top plate to move towards one side of the die main body, the ejector rod can push the cutting block to slide towards one side to cut a casting port, and meanwhile, the ejector pin can eject the product out of the die main body to realize demolding;

3. through setting up the elastic component, after demoulding mechanism drive ejector pin drives the slabbing and removes the material, demoulding mechanism can reset under injection molding equipment's drive, for the preparation of moulding plastics next time, at this moment, slider and slabbing can be under the effect of elastic component automatic re-setting, makes the pouring mouth of slabbing and the pouring mouth coincidence of mould main part, conveniently moulds plastics.

Drawings

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Reference numerals: 1. a mold body; 11. pouring the port; 12. a chute; 2. a demoulding mechanism; 21. a top plate; 22. a thimble; 23. a guide rod; 231. the limiting ring is convex; 24. a return spring; 25. a push rod; 3. cutting into blocks; 31. a cutting edge; 32. a lead-out surface; 4. a slide block; 41. a wedge surface; 5. an elastic member.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1.

The embodiment of the utility model discloses a pouring port material breaking mechanism of an injection mold, which is disclosed by the embodiment of the utility model, and referring to FIG. 1, and comprises a mold main body 1, a demolding mechanism 2 arranged on the mold main body 1, and a cutting block 3 arranged on the upper side of the mold main body 1 in a sliding manner, wherein the cutting block 3 is linked with the demolding mechanism 2; pouring openings 11 are formed in the die main body 1 and the cut pieces 3 in a penetrating mode, and when demolding is conducted, the demolding mechanism 2 drives the cut pieces 3 to slide, and the material blocks of the pouring openings 11 are cut off.

The demoulding mechanism 2 comprises a top plate 21, a thimble 22, a guide rod 23 and a return spring 24, wherein the top plate 21 is a rectangular plate body, and the top plate 21 is positioned above the mould main body 1. The thimble 22 is the cylinder body of rod, and thimble 22 is provided with a plurality ofly, and the thimble 22 is fixed in the roof 21 one side that is close to mould main part 1, and thimble 22 runs through mould main part 1 and with mould main part 1 sliding fit. Four guide rods 23 are arranged, are fixed on the die main body 1 corresponding to the four corners of the top plate 21 respectively, and the guide rods 23 penetrate through the top plate 21 and are in sliding fit with the top plate 21; a stop collar protrusion 231 is integrally provided at one end of the guide rod 23 away from the die body 1, and the stop collar protrusion 231 abuts against one side of the top plate 21 away from the die body 1. The return springs 24 are provided in plural corresponding to the guide rods 23, the return springs 24 are sleeved on the guide rods 23, and both ends of the return springs 24 are respectively abutted against the die main body 1 and the top plate 21.

A T-shaped chute 12 is arranged on the die main body 1 at a position corresponding to the cutting block 3, and the cutting block 3 is slidably arranged in the chute 12. A T-shaped sliding block 4 is slidably mounted in the sliding groove 12, and the end part of the sliding block 4 is fixed with the cutting block 3 through a bolt. An elastic piece 5 is arranged at one end, far away from the cutting block 3, of the sliding block 4, the elastic piece 5 is a compression spring, two ends of the elastic piece 5 are respectively abutted against the sliding block 4 and the die main body 1, and one end of the elastic piece 5 is welded and fixed on the sliding block 4. A push rod 25 is fixed on the top plate 21 at a position corresponding to the sliding block 4, and the end part of the push rod 25 is abutted against the sliding block 4; the surface of the ejector rod 25 and the sliding block 4, which are in contact with each other, is provided with a wedge-shaped surface 41, when the top plate 21 moves to the side of the die main body 1, the ejector rod 25 drives the sliding block 4 to slide to the side of the elastic piece 5 through the wedge-shaped surface 41, so that a material block of the pouring opening 11 is broken through the cutting block 3; when the top plate 21 is reset, the sliding block 4 can be automatically reset under the action of the elastic piece 5.

A cutting edge 31 is integrally arranged at the pouring opening 11 at one end of the cutting block 3 close to the die body 1, and the cutting edge 31 is positioned at one end of the cutting block 3 far away from the sliding block 4. A guide surface 32 extends from the cutting edge 31 toward a side away from the mold main body 1, and the guide surface 32 is a slope gradually away from the slide 4 toward the top plate 21. When the cutting block 3 is driven by the sliding block 4 to move to one side of the elastic piece 5 to cut the material block, the cutting edge 31 can rapidly cut the material block, and the cut material block can automatically pop up under the guidance of the guiding-out surface 32, so that automatic discharging is realized.

The embodiment of the utility model discloses an implementation principle of an injection mold pouring port breaking mechanism, which comprises the following steps: through sliding the cut block 3 on the die main body 1 and enabling the pouring opening 11 to penetrate through the cut block 3 and the die main body 1 at the same time, after a product is formed, injection molding equipment drives a top plate 21 to move to one side of the die main body 1, and a thimble 22 can eject the product from the die main body 1 to realize demolding; meanwhile, the ejector rod 25 can push the sliding block 4 to one side of the elastic piece 5, the sliding block 4 drives the cutting block 3 to cut the material block at the pouring opening 11, and the redundant material block is cut while demolding, so that the structure is simple and the operation is convenient.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides an injection mold pouring port breaking mechanism, includes mould main part (1) and sets up demoulding mechanism (2) on mould main part (1), set up pouring port (11), its characterized in that on mould main part (1): the die body (1) is provided with a cutting block (3) in a sliding manner, a pouring opening (11) penetrates through the cutting block (3), and the cutting block (3) is linked with the demoulding mechanism (2); demoulding mechanism (2) are including roof (21) and thimble (22), thimble (22) run through mould main part (1) and be provided with a plurality of, thimble (22) are kept away from one end of mould main part (1) is fixed in on roof (21), roof (21) are close to one side of mould main part (1) is fixed with ejector pin (25), the tip butt of ejector pin (25) in on cutting (3), ejector pin (25) with cutting (3) are close to one end each other and are provided with wedge (41) that mutually support, wedge (41) are used for the top to move cutting (3) slide.

2. The injection mold pouring port breaking mechanism according to claim 1, wherein: still include slider (4), spout (12) have been seted up to one side that mould main part (1) is close to roof (21), slider (4) slide set up in spout (12), spout (12) set up to the T-shaped groove, slider (4) set up to the T shape piece, the tip butt of ejector pin (25) slider (4), wedge (41) set up in on slider (4), cut piece (3) connect in the one end of slider (4).

3. The injection mold pouring port breaking mechanism according to claim 2, wherein: one end of the sliding block (4) far away from the cutting block (3) is provided with an elastic piece (5) for pushing the sliding block (4) to reset, and two ends of the elastic piece (5) are respectively abutted against the sliding block (4) and the die main body (1).

4. The injection mold pouring port breaking mechanism according to claim 2, wherein: and a cutting edge (31) is arranged on one side, close to or far from the pouring opening (11), of the cutting block (3) and is positioned on the sliding block (4).

5. The injection mold pouring port breaking mechanism according to claim 4, wherein: the cutting edge (31) extends to one side of the cutting block (3) away from the die main body (1) and is provided with a guiding-out surface (32).

6. The injection mold pouring port breaking mechanism according to claim 1, wherein: the demolding mechanism (2) further comprises guide rods (23), the guide rods (23) are distributed in the circumferential direction of the mold main body (1), the guide rods (23) penetrate through the top plate (21) and are in sliding fit with the top plate (21), one end, away from the mold main body (1), of each guide rod (23) is provided with a limiting ring boss (231), and each limiting ring boss (231) is abutted to one side, away from the mold main body (1), of each top plate (21).

7. The injection mold pouring port breaking mechanism according to claim 6, wherein: the guide rod (23) is sleeved with a return spring (24).