CN210362238U

CN210362238U - High accuracy injection mold for mechanical equipment part

Info

Publication number: CN210362238U
Application number: CN201920894656.0U
Authority: CN
Inventors: 肖丹
Original assignee: Shenzhen Makrolon Precision Machinery Co Ltd
Current assignee: Shenzhen Makrolon Precision Machinery Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-21
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses an injection mold for high-precision mechanical equipment parts, which structurally comprises an injection molding plate, a top mold, a bottom mold, a demolding mechanism, a base, a limiting seat, a spring, an injection molding opening and a buffer seat, wherein the demolding mechanism is arranged, when in use, a material for manufacturing the mechanical equipment parts is injected through the injection molding opening, the top mold is pressed downwards, the top mold is highly attached to the bottom mold, a part groove on the bottom mold is pressed to manufacture the high-precision mechanical equipment parts, the demolding is carried out in a hydraulic mode, the upward force is stronger than the force for demolding a rod piece, the force is uniform, the single force application is avoided, the labor is relatively great, when in demolding, a plug plate is made to reciprocate in a piston cylinder through a control rod, the pressure difference is generated, the suction gas is filled into a supplement cylinder through an air suction pipe, the pressure in the supplement cylinder is enhanced, the oil in the supplement cylinder flows into a first side cylinder and a second side cylinder in a single direction, an I-shaped ejector rod upwards, when the I-shaped ejector rod is reset, an oil return valve on the oil return pipe is screwed.

Description

High accuracy injection mold for mechanical equipment part

Technical Field

The utility model relates to an injection mold technical field, concretely relates to high accuracy injection mold for mechanical equipment part.

Background

An injection mould is a tool for producing plastic products, and is also a tool for endowing the plastic products with complete structures and accurate dimensions, the injection moulding is a processing method used when producing some parts with complex shapes in batches, particularly, the injection mould injects heated and melted plastics into a mould cavity from an injection moulding machine under high pressure, and a formed product is obtained after cooling and solidification, a hot-pressing mould can be divided into three types of overflow type, semi-overflow type and non-overflow type by a flash way, the injection mould can be divided into a cold runner mould and a hot runner mould by a pouring system, the installation mode can be divided into a movable type and a fixed type, the injection mould for high-precision mechanical equipment parts is a mould for manufacturing mechanical equipment parts, the requirement on the integrating degree required by a top mould and a bottom mould during pressing due to higher precision is higher, the precision of the prepared mechanical equipment parts can be high, and the requirement on the integrating degree ensures that a common demoulding rod piece is not easy to complete demoulding when demoulding, in the prior art, the separation effect of the top die and the bottom die is poor, and the efficient demoulding is difficult to utilize in a hydraulic mode.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the injection mold for the high-precision mechanical equipment part is provided, the problems that the separation effect of a top mold and a bottom mold is poor and the hydraulic form is difficult to realize high-efficiency demolding in the prior art are solved, and the advantages of high-efficiency demolding, simplicity, rapidness and strong practicability are achieved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a high accuracy injection mold for mechanical equipment part, including injection molding board, top mould, die block, demoulding mechanism, base, spacing seat, spring, the mouth and the cushion socket of moulding plastics, injection molding board central point puts and has installed the mouth of moulding plastics to the mouth of moulding plastics link up with the top mould is inside mutually, the injection molding board bottom surface is fastened in the top mould top surface, top mould bottom surface and die block top surface match the butt joint, the inside demoulding mechanism that has installed of die block side, base top lock solid is connected in the cushion socket bottom, the base top is equipped with spacing seat, spacing seat top elasticity butt has the spring, spring top elasticity butt is in the die block bottom, demoulding mechanism includes worker shape ejector pin, first side jar, first one-way pipe, return oil pipe, supplementary jar, second one-way pipe, second side jar, first trachea, piston cylinder, control lever, cock board, The outer surface of the I-shaped ejector rod vertically slides along the inner wall of the first side cylinder, the top surface of the I-shaped ejector rod is in contact with the bottom surface of a top die, the right side of the I-shaped ejector rod is connected with a first one-way pipe and an oil return pipe in a penetrating mode, the right side of the first one-way pipe and the right side of the oil return pipe are connected to the left side of a supplementary cylinder in a penetrating mode, the front face of the supplementary cylinder is connected with the first air pipe and the second air pipe in a sealing mode, the right side of the second one-way pipe is in butt joint with the left side of the second side cylinder, the left side of the first air pipe is connected onto the side wall of the piston cylinder, a piston in the piston cylinder is connected with a plug plate, the back face of a control rod is fastened to the front face of the plug plate.

Further, the top die comprises a main die frame, a convex block, a matching area and a through hole, the matching area is arranged on the main die frame, the convex block is fixedly connected to four corners of the matching area, the center of the matching area is connected with the through hole in a penetrating and embedding mode, and the through hole is communicated with the inner portion of the injection molding opening.

Further, the die block includes die block main part, finished piece district, part groove and butt joint hole, be equipped with the finished piece district in the die block main part, integrated into one piece has the part groove in the finished piece district to the quantity in part groove is greater than one, the butt joint hole is located four angular points of die block main part department, it has the butt joint inserted bar to be connected with the cooperation of top mould to imbed on the butt joint hole.

Furthermore, the number of the springs is 4, and the springs are arranged in the interval between the limiting seat and the bottom die.

Furthermore, the bottom surface of the base is provided with anti-skid grains which are uniformly distributed along the bottom surface of the base.

Furthermore, the first one-way pipe, the second one-way pipe, the first air suction pipe and the second air suction pipe are all internally provided with one-way valves.

Furthermore, an oil return valve is installed on the oil return pipe.

Furthermore, the base is made of cast iron, and the supporting strength is high.

Furthermore, the control rod is made of 304 stainless steel, so that the antirust property is strong.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1) the demoulding mechanism is arranged, when in use, materials for manufacturing mechanical equipment parts are injected through an injection port, the top mould is pressed downwards, the top mould is highly attached to the bottom mould, the part groove on the bottom mould is pressed to manufacture high-precision mechanical equipment parts, the hydraulic demoulding is adopted, upward force is stronger than that of demoulding a rod piece, the force application is uniform, single force application is avoided, labor is avoided, the hydraulic demoulding efficiency is high, when in demoulding, a plug plate is reciprocated in a piston cylinder through a control rod to generate pressure difference, sucked gas is filled into a supplementary cylinder through a first air suction pipe and a second air suction pipe, the pressure in the supplementary cylinder is enhanced, oil liquid in the supplementary cylinder flows into the first side cylinder and the second side cylinder in a one-way mode, an I-shaped ejector rod upwards pushes the top mould to drive the top mould to be separated from the bottom mould, when the I-shaped ejector rod is reset, an oil return valve on the oil return pipe is screwed.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the top mold of the present invention;

fig. 3 is a schematic structural view of the bottom die of the present invention;

fig. 4 is a schematic structural view of the demolding mechanism of the present invention;

fig. 5 is a partial side view of a piston cylinder of the present invention.

In the figure: an injection molding plate-1, a top mold-2, a bottom mold-3, a demolding mechanism-4, a base-5, a limiting seat-6, a spring-7, an injection molding opening-8, a buffer seat-9, a main mold frame-201, a bump-202, a matching area-203, a perforation-204, a bottom mold main body-301, a workpiece area-302 and a part groove-303, butt joint hole-304, I-shaped ejector rod-401, first side cylinder-402, first one-way pipe-403, oil return pipe-404, supplementary cylinder-405, second one-way pipe-406, second side cylinder-407, first air suction pipe-408, piston cylinder-409, control rod-410, plug plate-411, second air suction pipe-412, first air pipe-413 and second air pipe-414.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides an injection mold for high precision mechanical equipment parts: the injection molding device comprises an injection molding plate 1, a top mold 2, a bottom mold 3, a demolding mechanism 4, a base 5, a limiting seat 6, a spring 7, an injection molding opening 8 and a buffer seat 9, wherein the injection molding opening 8 is arranged at the center of the injection molding plate 1, the injection molding opening 8 is communicated with the inside of the top mold 2, the bottom surface of the injection molding plate 1 is fastened on the top surface of the top mold 2, the bottom surface of the top mold 2 is in butt joint with the top surface of the bottom mold 3 in a matching manner, the demolding mechanism 4 is arranged inside the side edge of the bottom mold 3, the top end of the base 5 is fixedly connected to the bottom end of the buffer seat 9, the limiting seat 6 is arranged above the base 5, the top end of the limiting seat 6 is elastically abutted with the spring 7, the top end of the spring 7 is elastically abutted with the bottom end of the bottom mold 3, the demolding mechanism 4 comprises an I-shaped ejector rod 401, a first side cylinder 402, a first one-, The outer surface of the I-shaped ejector rod 401 vertically slides along the inner wall of the first side cylinder 402, the top surface of the I-shaped ejector rod 401 contacts with the bottom surface of the top die 2, the right side of the I-shaped ejector rod 401 is connected with a first one-way pipe 403 and an oil return pipe 404 in a penetrating manner, the right side of the first one-way pipe 403 and the right side of the oil return pipe 404 are connected to the left side of a supplementary cylinder 405 in a penetrating manner, the front surface of the supplementary cylinder 405 is connected with a first air pipe 413 and a second air pipe 414 in a sealing manner, the right side of the second one-way pipe 406 is connected with the left side of the second side cylinder 407 in a butting manner, the left side of the first air pipe 408 is connected to the side wall of a piston cylinder 409 in a penetrating manner, a piston in the piston cylinder 409 is connected with a plug plate 411, the back surface of a control rod 410 is fastened.

Wherein, top mould 2 includes main mould frame 201, lug 202, cooperation district 203 and perforation 204, be equipped with cooperation district 203 on the main mould frame 201, the rigid coupling of four angular point departments in cooperation district 203 has lug 202, cooperation district 203 central point puts and runs through the scarf joint and has perforation 204, perforation 204 link up with the mouth 8 inside mutually of moulding plastics.

Wherein, die block 3 includes die block main part 301, finished piece district 302, part groove 303 and butt joint hole 304, be equipped with finished piece district 302 on the die block main part 301, integrated into one piece has part groove 303 on the finished piece district 302 to the quantity in part groove 303 is greater than 3, the butt joint hole 304 is located four angular points of die block main part 301 department, it has butt joint inserted bar and 2 cooperations of top mould to be connected to imbed on the butt joint hole 304.

Wherein, the number of the springs 7 is 4, and the springs are all arranged in the interval between the limiting seat 6 and the bottom die 3.

Wherein, 5 bottom surfaces of base are equipped with anti-skidding line to anti-skidding line prevents the mould skew along 5 bottom surfaces evenly distributed of base when doing benefit to mould plastics.

The first one-way pipe 403, the second one-way pipe 406, the first air suction pipe 408 and the second air suction pipe 412 are all provided with one-way valves therein, so that one-way fluidity is ensured.

An oil return valve is mounted on the oil return pipe 404, so that oil return is facilitated, and the H-shaped ejector rod 401 is reset.

Wherein, the base 5 is made of cast iron and has high supporting strength.

The control rod 410 is made of 304 stainless steel, and has strong rust resistance.

According to the table above, the utility model discloses control lever 410 adopts 304 stainless steel to make, and the rust resistance is stronger.

The buffer seat 9 is a protective seat body arranged at the bottom end of a part of injection mold manufacturing mechanical equipment, and has higher strength; the oil return pipe 404 is a pipe for returning the i-shaped ejector 401, and the principle of the oil return pipe is that oil of the i-shaped ejector 401 is transferred.

The working principle is as follows: when the injection mold is used, a material for manufacturing mechanical equipment parts is injected through the injection port 8, the top mold 2 is pressed down, the top mold 2 is in high fit with the bottom mold 3, the high-precision mechanical equipment parts are pressed from the part groove 303 on the bottom mold 3, when the mold is demolded, the plug plate 411 is reciprocated in the piston cylinder 409 through the control rod 410 to generate pressure difference, the piston cylinder 409 sucks gas to the outside in a one-way mode through the first air suction pipe 408 and the second air suction pipe 412, then the gas is filled into the replenishing cylinder 405 through the first air pipe 413 and the second air pipe 414, the pressure in the replenishing cylinder 405 is enhanced, oil in the replenishing cylinder 405 flows into the first side cylinder 402 and the second side cylinder 407 in a one-way mode through the first one-way pipe 406 and the second one-way pipe 406 respectively, the oil amount in the first side cylinder 402 and the second side cylinder 407 is increased, the I-shaped ejector rod 401 pushes the top mold 2 upwards to separate the top mold 2 from the bottom mold 3, the mold is, and the force application is uniform, the demoulding efficiency is high, and when the I-shaped ejector rod 401 is reset, an oil return valve on the oil return pipe 404 is screwed.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An injection mold for high-precision mechanical equipment parts comprises an injection molding plate (1), a top mold (2), a bottom mold (3), a base (5), a limiting seat (6), a spring (7), an injection molding opening (8) and a buffer seat (9), wherein the injection molding opening (8) is arranged at the central position of the injection molding plate (1), the injection molding opening (8) is communicated with the inside of the top mold (2), the bottom surface of the injection molding plate (1) is fastened on the top surface of the top mold (2), the bottom surface of the top die (2) is in butt joint with the top surface of the bottom die (3) in a matching way, a demoulding mechanism (4) is arranged inside the side edge of the bottom die (3), the top end of the base (5) is locked and connected with the bottom end of the buffer seat (9), a limiting seat (6) is arranged above the base (5), the top end of the limiting seat (6) is elastically abutted with a spring (7), and the top end of the spring (7) is elastically abutted with the bottom end of the bottom die (3);

the method is characterized in that: the demolding mechanism (4) comprises an I-shaped ejector rod (401), a first side cylinder (402), a first one-way pipe (403), an oil return pipe (404), a supplement cylinder (405), a second one-way pipe (406), a second side cylinder (407), a first air suction pipe (408), a piston cylinder (409), a control rod (410), a plug plate (411), a second air suction pipe (412), a first air pipe (413) and a second air pipe (414), wherein the outer surface of the I-shaped ejector rod (401) vertically slides along the inner wall of the first side cylinder (402), the top surface of the I-shaped ejector rod (401) is contacted with the bottom surface of a top mold (2), the right side of the I-shaped ejector rod (401) is connected with the first one-way pipe (403) and the oil return pipe (404) in a penetrating manner, the right side of the first one-way pipe (403) and the oil return pipe (404) is connected to the left side of the supplement cylinder (405), and the front surface of the supplement cylinder (405) is connected with the first air, the right side of the second one-way pipe (406) is butted with the left side of a second side cylinder (407), the left side of the first air suction pipe (408) penetrates through the side wall of the piston cylinder (409), a piston in the piston cylinder (409) is connected with a plug plate (411), the back of the control rod (410) is fastened on the front face of the plug plate (411), the second air suction pipe (412) and the first air suction pipe (408) are arranged on two sides of the piston cylinder (409) in an axial symmetry manner, and the bottom ends of the first air pipe (413) and the second air pipe (414) are connected to the back face of the piston cylinder (409) in a sealing.

2. The injection mold for the high-precision mechanical equipment part as claimed in claim 1, wherein: the top die (2) comprises a main die frame (201), a convex block (202), a matching area (203) and a through hole (204), the matching area (203) is arranged on the main die frame (201), the convex block (202) is fixedly connected to four corner points of the matching area (203), the center of the matching area (203) is connected with the through hole (204) in a penetrating and embedding mode, and the through hole (204) is communicated with the inside of the injection molding port (8).

3. The injection mold for the high-precision mechanical equipment part as claimed in claim 1, wherein: die block (3) include die block main part (301), finished piece district (302), part groove (303) and butt joint hole (304), be equipped with finished piece district (302) on die block main part (301), integrated into one piece has part groove (303) on finished piece district (302) to the quantity in part groove (303) is greater than 3, butt joint hole (304) are located four angular points of die block main part (301), it has butt joint inserted bar and top mould (2) cooperation to be connected to imbed on butt joint hole (304).

4. The injection mold for the high-precision mechanical equipment part as claimed in claim 1, wherein: the springs (7) are totally 4 and are arranged in the interval between the limiting seat (6) and the bottom die (3).

5. The injection mold for the high-precision mechanical equipment part as claimed in claim 1, wherein: the bottom surface of the base (5) is provided with anti-skid grains which are uniformly distributed along the bottom surface of the base (5).

6. The injection mold for the high-precision mechanical equipment part as claimed in claim 1, wherein: the first one-way pipe (403), the second one-way pipe (406), the first air suction pipe (408) and the second air suction pipe (412) are all internally provided with one-way valves.

7. The injection mold for the high-precision mechanical equipment part as claimed in claim 1, wherein: an oil return valve is mounted on the oil return pipe (404).