CN211616474U

CN211616474U - Four-slider core-pulling mechanism of injection mold

Info

Publication number: CN211616474U
Application number: CN202020037056.5U
Authority: CN
Inventors: 史恩波; 周吴建; 黄悦
Original assignee: Zhejiag Taizhou Meiduo Mould Co ltd
Current assignee: Zhejiag Taizhou Meiduo Mould Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-02
Anticipated expiration: 2030-01-08

Abstract

The utility model relates to an injection mold's four slider mechanism of loosing core, including movable mould and cover half, the movable mould includes the movable mould bedplate and is located the movable mould of movable mould bedplate top is inserted and is pushed away a board, the middle part system of pushing away a board has the insert hole, the bottom that the movable mould was inserted is fixed on the movable mould bedplate, the head that the movable mould was inserted pass the insert hole and with the cover half cooperation still includes slider and oblique guide pillar, the system all around of insert hole has four slider mounting grooves, the slider is equipped with four and installs respectively on the slider mounting groove, the slider with the movable mould is inserted the cooperation and is formed the core. The utility model discloses a four sliders are loosed core in step, and it is ejecting to set up the stripper plate, and when the hydro-cylinder drove the stripper plate ejecting, slider, stripper plate had relative motion with oblique guide pillar, and the movable mould is inserted and can be supported the product to realize the product ejecting on one side and loosing core, guarantee the stable production of mould.

Description

Four-slider core-pulling mechanism of injection mold

Technical Field

The utility model relates to an injection mold's four slider mechanism of loosing core belongs to injection mold technical field.

Background

The inner barrel thin-wall shell product of the large-scale drum washing machine is difficult to loose the core after injection molding because the periphery of the inner barrel thin-wall shell product is provided with ribs. The core is pulled by adopting the multiple sliding blocks in the prior art, but the inclined guide pillars are installed on the fixed die in the traditional sliding block structure, when the movable die and the fixed die are opened, the sliding blocks are synchronously opened, the sliding blocks cannot press the product, and the condition that the product sucks the fixed die appears, so that the product demoulding fails.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of prior art, provide a mechanism of loosing core to four sliders of bucket thin wall casing injection mold in large-scale drum type washing machine.

For realizing the purpose the utility model adopts the technical proposal that:

the four-slider core-pulling mechanism of the injection mold comprises a movable mold and a fixed mold, wherein the movable mold comprises a movable mold base plate, a movable mold insert and a push plate, the movable mold insert and the push plate are positioned above the movable mold base plate, an insert hole is formed in the middle of the push plate, the bottom of the movable mold insert is fixed on the movable mold base plate, the head of the movable mold insert penetrates through the insert hole and is matched with the fixed mold, the four slider mounting grooves are formed in the periphery of the insert hole, the four sliders are respectively mounted on the slider mounting grooves, the sliders are matched with the movable mold insert to form a mold core, a first elongated oblique guide pillar hole is further formed in the slider mounting groove, a second oblique guide pillar hole is formed in the slider, the bottom of the oblique guide pillar is mounted on the movable mold base plate, and the head of the oblique guide pillar sequentially penetrates through the first oblique guide pillar hole and the second oblique guide pillar hole, the movable mould also comprises an oil cylinder, the oil cylinder is fixed on the movable mould base plate, and the oil cylinder drives the stripper plate to move.

As a further optimization of the above technical solution: the both sides of slider mounting groove still system have first guide way, install L type guide block on the first guide way, L type guide block includes vertical the installation department on the first guide way and with installation department vertically guide part, the guide part with form the second guide way between the installation department, the both sides system of slider bottom has outside outstanding direction sand grip, the direction sand grip is located in the second guide way.

As a further optimization of the above technical solution: the middle part of slider mounting groove still makes two third guide ways, install on the third guide way and lead the draw runner, the bottom system of slider with lead draw runner complex and lead the spout.

As a further optimization of the above technical solution: the four corners of the pushing plate are provided with bosses, the four bosses are provided with limit screw holes, each limit screw hole comprises a small hole and a large hole positioned above the small hole, a limit step is formed between the large hole and the small hole, limit screws are arranged in the limit screw holes, the bottom of the limit screw rod part penetrates through the small holes and is fixed on the movable die base plate, the cap head of each limit screw is positioned above the large holes, and the size of the cap head of each limit screw is larger than that of the small holes and smaller than that of the large holes.

As a further optimization of the above technical solution: the guide post is characterized in that the boss is also provided with a guide post hole, a guide post is arranged in the guide post hole, the bottom of the guide post is fixed on the movable die base plate, the head of the guide post penetrates through the guide post hole and is matched with the fixed die, and the push plate is provided with a guide post sleeve matched with the guide post.

As a further optimization of the above technical solution: the end part of a piston rod of the oil cylinder is fixed with an I-shaped block, the middle part of the I-shaped block is recessed inwards to form an I-shaped groove, one side of the pushing plate is fixed with a connecting block, the top end of the connecting block is provided with a protruding matching block, the matching block is provided with a matching hole matched with the I-shaped block, the lower part of the wall of the matching hole protrudes inwards to form a matching step, and the matching step is located in the I-shaped groove.

Compared with the prior art, the inclined guide pillar is arranged on the movable mould base plate, so that when the movable mould and the fixed mould are opened, the slide block can press a product, and the product is not stuck to the fixed mould; the four sliding blocks are adopted for synchronously pulling cores, the ejector plate is arranged to eject, when the oil cylinder drives the ejector plate to eject, the sliding blocks, the ejector plate and the inclined guide columns move relatively, and the movable die insert can support a product, so that the product can be ejected and the core can be pulled at the same time, and the stable production of the die is ensured.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic sectional structure of the present invention.

Fig. 4 is another schematic sectional view of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description. As shown in fig. 1-4, for convenience of illustration, a movable die insert 2 is removed in fig. 1, a left-side slide block 4, an inclined guide post 5 and the like are removed in fig. 3, and a four-slide block core pulling mechanism of an injection die comprises a movable die and a fixed die, wherein the movable die comprises a movable die base plate 1, a movable die insert 2 and a stripper plate 3 which are arranged above the movable die base plate 1, an insert hole 31 is formed in the middle of the stripper plate 3, the bottom of the movable die insert 2 is fixed on the movable die base plate 1, the head of the movable die insert 2 penetrates through the insert hole 31 and is matched with the fixed die, and further comprises a slide block 4 and an inclined guide post 5, four slide block mounting grooves 32 are formed around the insert hole 31, the slide block 4 is provided with four and is respectively mounted on the slide block mounting grooves 32, the slide block 4 is matched with the movable die insert 2 to form a core, and a first elongated, the inner part of the sliding block 4 is provided with a second inclined guide post hole, the bottom of the inclined guide post 5 is arranged on the movable mold base plate 1, the head of the inclined guide post 5 sequentially penetrates through the first inclined guide post hole 321 and the second inclined guide post hole, the movable mold further comprises an oil cylinder 6, the oil cylinder 6 is fixed on the movable mold base plate 1, and the oil cylinder 6 drives the stripper plate 3 to move. After injection molding is finished, the movable and fixed dies are opened, the inclined guide post 5 is arranged on the movable die base plate 1, so that the slide block 4 cannot be opened synchronously when the movable and fixed dies are opened, and the slide block 4 can press a product to prevent the product from being stuck on the fixed die; after the product is completely separated from the fixed die, the oil cylinder 6 drives the stripper plate 3 and the sliding block 4 to do ejection motion, the inclined guide post 5 transversely moves in the first inclined guide post hole 321, and the second inclined guide post hole is tightly attached to the inclined guide post 5, so that the sliding block 4 retreats along the inclined guide post in the ejection process to do core-pulling motion, ejection and core-pulling are realized, and synchronous core-pulling in four directions is realized because the sliding block 4 is positioned around the movable die insert 2. Two first oblique guide post holes 321 are formed in each sliding block mounting groove 32, two second oblique guide post holes are formed in each sliding block 4, each first oblique guide post hole 321 corresponds to each second oblique guide post hole one to one, namely each sliding block 4 is matched with two groups of oblique guide posts 5, and therefore core pulling is more stable.

In the above technical scheme: the both sides of slider mounting groove 32 still have first guide way 322 to make, install L type guide block 7 on the first guide way 322, L type guide block 7 includes vertical the installation department 71 on the first guide way 322 and with installation department 71 vertically guide part 72, guide part 72 with form second guide way 73 between the installation department 71, the both sides system of slider 4 bottom has outside outstanding direction sand grip 41, direction sand grip 41 is located in the second guide way 73. The cooperation of the guide convex strip 41 and the second guide groove 73 plays a role in guiding the core pulling process of the slider 4. The middle part of the slide block mounting groove 32 is also provided with two third guide grooves 323, the third guide grooves 323 are provided with guide sliding strips 11, and the bottom of the slide block 4 is provided with guide sliding grooves 42 matched with the guide sliding strips 11. The cooperation of the slide guiding bar 11 and the slide guiding groove 42 plays a role of slide guiding.

In the above technical scheme: bosses 33 are formed at four corners of the stripper plate 3, and limit screw holes 331 are formed in the four bosses 33. As shown in fig. 3, the limit screw hole 331 includes a small hole 3311 and a large hole 3312 located above the small hole 3311, a limit step 3313 is formed between the large hole 3312 and the small hole 3311, a limit screw 8 is disposed in the limit screw hole 331, the bottom of the rod portion of the limit screw 8 passes through the small hole 3311 and is fixed on the movable mold base plate 1, the cap head of the limit screw 8 is located above the large hole 3312, and the size of the cap head of the limit screw 8 is larger than the size of the small hole 3311 and smaller than the size of the large hole 3312. The cooperation of the limit screw 8 and the limit step 3313 plays a role in limiting the ejection of the stripper plate 3.

In the above technical scheme: the boss 33 is further provided with a guide post hole 332, a guide post 9 is arranged in the guide post hole 332, the bottom of the guide post 9 is fixed on the movable die base plate 1, the head of the guide post 9 penetrates through the guide post hole 332 and is matched with the fixed die, and the push plate 3 is provided with a guide post sleeve 10 matched with the guide post 9. The guide post 9 plays the effect of direction to the separation of movable mould and cover half and push out of stripper plate.

In the above technical scheme: an i-shaped block 12 is fixed at the end of a piston rod of the oil cylinder 6, as shown in fig. 2, an i-shaped groove 121 is formed in the middle of the i-shaped block 12 in a concave manner, a connecting block 13 is fixed at one side of the pushing plate 3, a protruding matching block 131 is formed at the top end of the connecting block 13, a matching hole 1311 matched with the i-shaped block 12 is formed in the matching block 131, a matching step 1312 is formed by the lower portion of the hole wall of the matching hole 1311 protruding inwards, and the matching step 1312 is located in the i-shaped groove 121. The oil cylinder 6 drives the stripper plate 3 to move through the matching of the matching step 1311 and the I-shaped groove 121.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, all should fall into the protection scope of the utility model, the technical scheme that the design of this technical field technical personnel according to the utility model can be obtained through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into.

Claims

1. The four-slider core-pulling mechanism of the injection mold comprises a movable mold and a fixed mold, wherein the movable mold comprises a movable mold base plate (1), a movable mold insert (2) and a pushing plate (3) which are positioned above the movable mold base plate (1), the middle part of the pushing plate (3) is provided with an insert hole (31), the bottom of the movable mold insert (2) is fixed on the movable mold base plate (1), the head part of the movable mold insert (2) penetrates through the insert hole (31) and is matched with the fixed mold, the four-slider core-pulling mechanism is characterized by further comprising a slider (4) and an inclined guide post (5), four slider mounting grooves (32) are formed around the insert hole (31), the four sliders (4) are respectively mounted on the slider mounting grooves (32), the slider (4) is matched with the movable mold insert (2) to form a mold core, and the slider mounting groove (32) is further provided with a first inclined guide post hole (321), the sliding die is characterized in that a second inclined guide post hole is formed in the sliding block (4), the bottom of the inclined guide post (5) is installed on the moving die base plate (1), the head of the inclined guide post (5) sequentially penetrates through the first inclined guide post hole (321) and the second inclined guide post hole, the moving die further comprises an oil cylinder (6), the oil cylinder (6) is fixed on the moving die base plate (1), and the oil cylinder (6) drives the stripper plate (3) to move.

2. The four-slider core pulling mechanism of the injection mold according to claim 1, wherein the two sides of the slider mounting groove (32) are further provided with first guide grooves (322), the first guide grooves (322) are provided with L-shaped guide blocks (7), each L-shaped guide block (7) comprises a mounting portion (71) vertically mounted on the first guide groove (322) and a guide portion (72) perpendicular to the mounting portion (71), a second guide groove (73) is formed between the guide portion (72) and the mounting portion (71), the two sides of the bottom of the slider (4) are provided with guide convex strips (41) protruding outwards, and the guide convex strips (41) are located in the second guide grooves (73).

3. The four-slider core pulling mechanism of the injection mold according to claim 1, wherein two third guide grooves (323) are further formed in the middle of the slider mounting groove (32), a guide sliding bar (11) is mounted on each third guide groove (323), and a guide sliding groove (42) matched with the guide sliding bar (11) is formed in the bottom of the slider (4).

4. The four-slider core-pulling mechanism of an injection mold according to claim 1, characterized in that four corners of the stripper plate (3) are provided with bosses (33), the four bosses (33) are respectively provided with a limit screw hole (331), the limit screw holes (331) comprise small holes (3311) and large holes (3312) positioned above the small holes (3311), a limit step (3313) is formed between the big hole (3312) and the small hole (3311), a limit screw (8) is arranged in the limit screw hole (331), the bottom of the rod part of the limit screw (8) passes through the small hole (3311) and is fixed on the movable mold base plate (1), the cap head of the limit screw (8) is positioned above the large hole (3312), the size of the cap head of the limiting screw (8) is larger than that of the small hole (3311) and smaller than that of the large hole (3312).

5. The four-slider core-pulling mechanism of the injection mold according to claim 4, wherein the boss (33) is further formed with a guide post hole (332), a guide post (9) is arranged in the guide post hole (332), the bottom of the guide post (9) is fixed on the movable mold base plate (1), the head of the guide post (9) passes through the guide post hole (332) and is matched with the fixed mold, and the ejector plate (3) is provided with a guide post sleeve (10) matched with the guide post (9).

6. The four-slider core pulling mechanism of the injection mold according to claim 1, wherein an I-shaped block (12) is fixed at the end of a piston rod of the oil cylinder (6), an I-shaped groove (121) is formed by recessing the middle part of the I-shaped block (12), a connecting block (13) is fixed at one side of the pushing plate (3), a protruding matching block (131) is formed at the top end of the connecting block (13), a matching hole (1311) matched with the I-shaped block (12) is formed in the matching block (131), a matching step (1312) is formed by protruding the lower part of the hole wall of the matching hole (1311) inwards, and the matching step (1312) is located in the I-shaped groove (121).