CN219727081U - Ejection mechanism of injection mold - Google Patents

Abstract

The utility model discloses an ejection mechanism of an injection mold, and particularly relates to the technical field of injection molds. According to the utility model, one of the convex extension blocks is driven to move upwards by the working extension of the first hydraulic cylinder, and the other convex extension block is driven to move upwards by the working contraction of the second hydraulic cylinder, so that the top of a product is rotated, the convex extension block is far away from the connecting sleeve, the convex extension block is overhauled and replaced, the other convex extension block is overhauled and replaced in the same way, the operation is simple, and the overhauling and replacement of the convex extension block are convenient.

Description

Ejection mechanism of injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to an ejection mechanism of an injection mold.

Background

The injection mold is a processing tool used in mass production of parts, and is mainly applied to the industrial field. The injection mold process is to inject the heated and melted material into a mold cavity under high pressure, and obtain a formed product after cooling and solidification. The existing ejection mode of the injection mold can be divided into: the structure forms of dome pin ejection, ejector pin ejection with support, flat ejector pin ejection and the like, and the ejection structure also determines the processing difficulty degree of the product and the precision degree of the plastic product.

The utility model discloses an ejection mechanism of an injection mold, which comprises a lower mold, wherein the ejection mechanism is arranged in the lower mold and comprises a sleeve and an ejector rod, the sleeve is arranged in a containing cavity of the lower mold, the containing cavity is communicated with a material cavity at the top of the lower mold, the sleeve is arranged in the material cavity in a penetrating way, at least part of the inner wall of the material cavity is attached to the sleeve, the upper end part of the sleeve is convexly arranged in the material cavity, the lower end part of the sleeve is positioned in the containing cavity, the ejector rod is arranged in the sleeve in a penetrating way, the top end of the ejector rod is flush with the sleeve, and overflow materials at the periphery of a formed concave hole can be arranged in the concave hole, so that the influence on the placement of products outside the concave hole is avoided;

when the structure is used, when the upper die and the lower die are folded, the extending part of the positioning piece corresponds to the material cavity, but the extending part is easy to damage after being contacted with materials for a long time, and the material cavity is inconvenient to overhaul and replace.

Disclosure of Invention

The technical scheme of the utility model aims at solving the technical problem that the prior art is too single, provides a solution which is obviously different from the prior art, and aims at overcoming the defects of the prior art, providing an ejection mechanism of an injection mold and solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the ejection mechanism of the injection mold comprises a base, wherein the top end of the base is fixedly connected with a mounting frame, a lower mold and an upper mold are arranged in the mounting frame, a convex extension block is movably arranged on one side of the inner part of the lower mold and one side of the inner part of the upper mold, a thread head is fixedly connected to one side of the two opposite convex extension blocks, and a connecting sleeve is connected to the two thread heads in a threaded manner;

one of them adapter sleeve bottom fixedly connected with first pneumatic cylinder, first pneumatic cylinder bottom and base fixed connection, another adapter sleeve top fixedly connected with second pneumatic cylinder, second pneumatic cylinder top and mounting bracket fixed connection.

Further, sealing gaskets are movably arranged on the two convex extension blocks, and the two sealing gaskets are respectively contacted with the lower die and the upper die.

Further, two first connecting components are arranged on the lower die, and each of the two first connecting components comprises a U-shaped plate and a first fixing bolt.

Further, two U-shaped plates are fixedly connected with the mounting frame, and the two U-shaped plates are respectively fixed with the lower die through two first fixing bolts.

Further, two second connecting components are arranged on the upper die, and each second connecting component comprises an L-shaped plate, a sliding rod and a second fixing bolt.

Further, two slide bars are fixedly connected with the mounting frame, two L-shaped plates are respectively movably sleeved on the two slide bars, and the two L-shaped plates are respectively fixed with the upper die through two second fixing bolts.

The utility model has the technical effects and advantages that:

1. according to the utility model, one connecting sleeve is driven to move upwards through the working extension of the first hydraulic cylinder, one convex extension block is driven to move upwards, and the other convex extension block is driven to move upwards through the working contraction of the second hydraulic cylinder, so that the top of a product is rotated, the convex extension block is far away from the connecting sleeve, the convex extension block is overhauled and replaced, and the other convex extension block is overhauled and replaced in the same way, so that the operation is simple, and the convex extension block is convenient to overhaul and replace;

2. according to the utility model, the lower die and the mounting frame are fixed through the U-shaped plate, the first fixing bolt is rotated and kept away from the lower die, so that the fixation between the U-shaped plate and the lower die is released, the lower die is taken out and overhauled and replaced, the upper die is movably connected with the mounting frame through the L-shaped plate and the sliding rod, and the locking between the upper die and the L-shaped plate can be released through the second fixing bolt, and the upper die is overhauled and replaced, so that the device is simple in structure and convenient to use.

Drawings

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

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

FIG. 2 is an assembled perspective view of a first connector assembly and a second connector assembly according to the present utility model;

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

FIG. 4 is a perspective view of the male extension block and threaded head assembly of the present utility model;

in the figure: 1. a base; 2. a mounting frame; 3. a lower die; 4. an upper die; 5. a first hydraulic cylinder; 6. connecting sleeves; 7. a second hydraulic cylinder; 8. a first connection assembly; 9. a second connection assembly; 10. a male extension block; 11. a thread head; 12. a sealing gasket; 801. a U-shaped plate; 802. a first fixing bolt; 901. an L-shaped plate; 902. a slide bar; 903. and a second fixing bolt.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, 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.

Referring to fig. 1-4 of the specification, an ejection mechanism of an injection mold of the embodiment comprises a base 1, wherein the top end of the base 1 is fixedly connected with a mounting frame 2, a lower mold 3 and an upper mold 4 are arranged in the mounting frame 2, a convex extension block 10 is movably arranged on one side of the inner part of the lower mold 3 and one side of the inner part of the upper mold 4, screw thread heads 11 are fixedly connected on the opposite sides of the two convex extension blocks 10, and a connecting sleeve 6 is connected on the two screw thread heads 11 in a threaded manner;

one of them adapter sleeve 6 bottom fixedly connected with first pneumatic cylinder 5, first pneumatic cylinder 5 bottom and base 1 fixed connection, the second pneumatic cylinder 7 of another adapter sleeve 6 top fixedly connected with, second pneumatic cylinder 7 top and mounting bracket 2 fixed connection.

Further, the two convex extension blocks 10 are movably provided with sealing gaskets 12, and the two sealing gaskets 12 are respectively contacted with the lower die 3 and the upper die 4, so that the sealing performance between the two convex extension blocks 10 and the lower die 3 and between the two convex extension blocks and the upper die 4 can be improved through the two sealing gaskets 12, and leakage of materials is prevented.

Further, two first connecting components 8 are arranged on the lower die 3, the two first connecting components 8 comprise U-shaped plates 801 and first fixing bolts 802, the two U-shaped plates 801 are fixedly connected with the mounting frame 2, and the two U-shaped plates 801 are respectively fixed with the lower die 3 through the two first fixing bolts 802.

Further, two second connecting components 9 are arranged on the upper die 4, the two second connecting components 9 comprise an L-shaped plate 901, sliding rods 902 and second fixing bolts 903, the two sliding rods 902 are fixedly connected with the mounting frame 2, the two L-shaped plates 901 are respectively movably sleeved on the two sliding rods 902, and the two L-shaped plates 901 are respectively fixed with the upper die 4 through the two second fixing bolts 903.

Wherein, make bed die 3 and mounting bracket 2 fixed mutually through U-shaped plate 801, rotate first fixing bolt 802 and make it keep away from bed die 3 to remove the fixed between U-shaped plate 801 and the bed die 3, take out bed die 3 and overhaul it and change, make last mould 4 and mounting bracket 2 swing joint through L-shaped plate 901 and slide bar 902, can release the locking between last mould 4 and the L-shaped plate 901 through second fixing bolt 903 in the same way, and overhaul to change to last mould 4, simple structure, convenient to use.

The application method of the embodiment is as follows:

after the material between lower mould 3 and the upper mould 4 is moulded, the staff upwards moves L shaped plate 901 and makes it slide on slide bar 902 to drive upper mould 4 upwards and make upper mould 4 top and the inside top of mounting bracket 2 contact, the convex extension piece 10 on the second pneumatic cylinder 7 stops the product simultaneously, prevent that the product from being taken up by upper mould 4, then start first pneumatic cylinder 5 and second pneumatic cylinder 7, first pneumatic cylinder 5 work extension drives one of them adapter sleeve 6 and upwards moves, and then drive one of them convex extension piece 10 and upwards move, second pneumatic cylinder 7 work shrink drives another convex extension piece 10 and upwards moves, thereby with the product top, rotate convex extension piece 10 and make the nipple 11 keep away from adapter sleeve 6, overhaul the change to convex extension piece 10, overhaul the change to another convex extension piece 10 similarly, easy operation, the convenience overhauls the change to convex extension piece 10.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (6)

1. The utility model provides an ejection mechanism of injection mold, includes base (1), base (1) top fixedly connected with mounting bracket (2), inside bed die (3) and the last mould (4), its characterized in that of being equipped with of mounting bracket (2): a convex extension block (10) is movably arranged on one side in the lower die (3) and one side in the upper die (4), a thread head (11) is fixedly connected to one side, opposite to the convex extension block (10), of each convex extension block, and a connecting sleeve (6) is connected to each thread head (11) in a threaded manner;

one of them adapter sleeve (6) bottom fixedly connected with first pneumatic cylinder (5), first pneumatic cylinder (5) bottom and base (1) fixed connection, another adapter sleeve (6) top fixedly connected with second pneumatic cylinder (7), second pneumatic cylinder (7) top and mounting bracket (2) fixed connection.

2. The ejection mechanism of an injection mold of claim 1, wherein: sealing gaskets (12) are movably arranged on the two convex extension blocks (10), and the two sealing gaskets (12) are respectively contacted with the lower die (3) and the upper die (4).

3. The ejection mechanism of an injection mold of claim 1, wherein: two first connecting components (8) are arranged on the lower die (3), and the two first connecting components (8) comprise U-shaped plates (801) and first fixing bolts (802).

4. An ejection mechanism for an injection mold according to claim 3, wherein: the two U-shaped plates (801) are fixedly connected with the mounting frame (2), and the two U-shaped plates (801) are respectively fixed with the lower die (3) through two first fixing bolts (802).

5. The ejection mechanism of an injection mold of claim 1, wherein: two second connecting components (9) are arranged on the upper die (4), and the two second connecting components (9) comprise an L-shaped plate (901), a sliding rod (902) and a second fixing bolt (903).

6. The ejection mechanism of an injection mold of claim 5, wherein: the two sliding rods (902) are fixedly connected with the mounting frame (2), the two L-shaped plates (901) are respectively movably sleeved on the two sliding rods (902), and the two L-shaped plates (901) are respectively fixed with the upper die (4) through two second fixing bolts (903).