CN211307242U

CN211307242U - Injection mold for injection molding part with complex curved surface

Info

Publication number: CN211307242U
Application number: CN201922287759.3U
Authority: CN
Inventors: 刘汉强
Original assignee: Shenzhen Weifa Technology Co ltd
Current assignee: Shenzhen Weifa Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-21
Anticipated expiration: 2029-12-19

Abstract

The utility model relates to an injection molding shaping technical field specifically is a complicated curved surface injection mold, including the bed die, the upper end of bed die is provided with the mould, and the perpendicular welding of the lower extreme left and right sides of bed die has a pair of guide post of mutual symmetry, and the lower extreme of bed die is provided with the bottom plate, and bottom plate slidable mounting is provided with the X-shaped bull stick at the inner chamber of base between bottom plate and the base, is provided with two pairs of sliding chutes of mutual symmetry between the up end of the lower terminal surface of bottom plate and base, and beneficial effect is: the utility model has the advantages that the matching of the X-shaped cross-rotating connecting rod and the spring is arranged, so that the vibration of the mould during injection molding is buffered by the spring, and the injection molding quality is greatly improved; the ejector rod and the adjusting groove are arranged, the height of the adjusting nut is set after the mold is formed, the ejector rod is extruded by the mold through the gravity of the mold, and the purpose of automatic demolding is achieved.

Description

Injection mold for injection molding part with complex curved surface

Technical Field

The utility model relates to an injection molding shaping technical field specifically is a complicated curved surface injection mold.

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.

In the process of carrying out injection molding on a complex curved surface by the existing injection molding technology, due to the complex structure of an injection molding part, the flow of injection molding liquid is easy to cause unsmooth during injection molding, and the injection mold shakes up and down to cause the distortion of an injection molding structure, meanwhile, the structure is complex, and the mold taking is difficult after injection molding.

Therefore, the injection mold for the injection molding part with the complex curved surface is provided, and the problems of stability and mold taking during injection molding of the complex curved surface are solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a complicated curved surface injection molding to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an injection mold for injection molding parts with complex curved surfaces comprises a lower mold, wherein an upper mold is arranged at the upper end of the lower mold, a pair of guide posts which are mutually symmetrical are vertically welded at the left side and the right side of the lower end of the lower mold, a bottom plate is arranged at the lower end of the lower mold, the bottom plate is slidably arranged in an inner cavity of a base, an X-shaped rotating rod is arranged between the bottom plate and the base, two pairs of sliding grooves which are mutually symmetrical are arranged between the lower end surface of the bottom plate and the upper end surface of the base, a loop bar is transversely inserted in the inner cavity of the sliding grooves, the X-shaped rotating rod is composed of two connecting rods which are mutually crossed and rotatably arranged, sliders are welded at the end parts of the connecting rods of the X-shaped rotating rod, ejector rods are vertically and upwardly fixedly arranged at the middle connecting positions of the X-shaped rotating rod, the sliders are slidably inserted in the outer wall of the loop bar, and a screw rod is vertically arranged in the inner cavity of the adjusting groove.

Preferably, the upper end of the upper die is provided with an injection molding opening, the left end and the right end of the upper end face of the upper die are sleeved on the outer wall of the upper end of the guide post, and the upper die and the guide post are fixed through a locking nut.

Preferably, the spring is sleeved on the outer wall of the loop bar, one end of the spring abuts against the inner wall of the sliding groove, and the other end of the spring abuts against the side face of the sliding block.

Preferably, the lower end of the ejector rod is fixed at the middle position of the X-shaped rotating rod, the outer wall of the middle section of the ejector rod sequentially penetrates through the bottom plate and the lower die, and the upper end of the ejector rod extends to the lower end of the lower die cavity.

Preferably, the left end and the right end of the bottom plate are sleeved on the outer wall of the screw rod in a sliding mode, the lower end of the bottom plate is provided with an adjusting nut, and the adjusting nut is rotatably installed on the outer wall of the screw rod.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the matching of the X-shaped cross-rotating connecting rod and the spring is arranged, so that the vibration of the mould during injection molding is buffered by the spring, and the injection molding quality is greatly improved;

2. the utility model discloses a set up ejector pin and adjustment tank, treat the height through setting up adjusting nut after the shaping, and then make the mould extrude the ejector pin through the gravity of self, and then realize the purpose of automatic drawing of patterns.

Drawings

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

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the injection molding machine comprises a lower die 1, an upper die 2, a guide post 3, a locking nut 4, a bottom plate 5, a base 6, a 7X-shaped rotating rod, a sliding groove 8, a sliding block 9, a spring 10, a loop bar 11, a screw rod 12, an ejector rod 13, an adjusting nut 14, an adjusting groove 15 and an injection molding opening 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution:

the utility model provides a complicated curved surface injection molding injection mold, including bed die 1, the upper end of bed die 1 is provided with mould 2, the perpendicular welding of the lower extreme left and right sides of bed die 1 has a pair of guide post 3 of mutual symmetry, the upper end of going up mould 2 is provided with mouth 16 of moulding plastics, both ends cup joint the upper end outer wall at guide post 3 about going up the up end of mould 2, and it is fixed through lock nut 4 between mould 2 and the guide post 3 to go up, utilize the guide post 3 to realize the accurate position installation between the bed die about, utilize lock nut 4 to realize the fixed connection between the bed die.

The lower end of the lower die 1 is provided with a bottom plate 5, the bottom plate 5 is slidably mounted in an inner cavity of the base 6, an X-shaped rotating rod 7 is arranged between the bottom plate 5 and the base 6, and two pairs of mutually symmetrical sliding grooves 8 are arranged between the lower end face of the bottom plate 5 and the upper end face of the base 6.

The inner chamber of sliding tray 8 is transversely pegged graft there is loop bar 11, and X-shaped bull stick 7 is two connecting rods of intercrossing rotation installation and is constituteed, and the connecting rod tip of X-shaped bull stick 7 has all welded slider 9, and slider 9 slides and pegs graft at the outer wall of loop bar 11, utilizes slider 9 and loop bar 11's cooperation, realizes the slidable mounting of X-shaped bull stick 7, utilizes X-shaped bull stick 7 to make the mould under the influence of dead weight, realizes the relative rotation of X-shaped bull stick 7.

Be provided with spring 10 between the terminal surface that X shape bull stick 7 was kept away from to slider 9 and the inner wall of sliding tray 8, the cup joint of spring 10 is at the outer wall of loop bar 11, and the inner wall at sliding tray 8 is supported to the one end of spring 10, and the other end of spring 10 supports on the side of slider 9, arouses X shape bull stick 7 relative rotation through the vibration, and then extrudees spring 10, realizes the buffering to the vibration, has improved the quality of moulding plastics greatly.

The left and right sides of base 6 is provided with adjustment tank 15, and the inner chamber of adjustment tank 15 is vertical to be provided with screw rod 12, and both ends slip the cup joint at the outer wall of screw rod 12 about bottom plate 5, and the lower extreme of bottom plate 5 is provided with adjusting nut 14, and adjusting nut 14 rotates and installs at the outer wall of screw rod 12, utilizes adjusting nut 4 control bottom plate 5 height that descends.

The middle connecting position of the X-shaped rotating rod 7 is vertically and upwards fixedly provided with an ejector rod 13, the lower end of the ejector rod 13 is fixed at the middle position of the X-shaped rotating rod 7, the middle section outer wall of the ejector rod 13 sequentially penetrates through the bottom plate 5 and the lower die 1, the upper end of the ejector rod 13 extends to the lower end of the lower die cavity, after the height is adjusted by the adjusting nut 4, the upper die and the lower die are pressed downwards under the action of self weight, and then the ejector rod 13 is jacked up, so that the automatic demolding process is realized.

The working principle is as follows: at first, utilize guide post 3 to realize the accurate position installation between the bed die, utilize lock nut 4 to realize the fixed connection between the bed die, utilize slider 9 and loop bar 11's cooperation, realize the slidable mounting of X shape bull stick 7, utilize X shape bull stick 7 to make the mould under the influence of dead weight, realize the relative rotation of X shape bull stick 7, arouse X shape bull stick 7 relative rotation through the vibration, and then extrusion spring 10, realize the buffering to the vibration, the quality of moulding plastics has been improved greatly.

After the forming, the height of the bottom plate 5 is controlled by the adjusting nut 4 to enable the upper die and the lower die to be pressed down under the action of self weight, the X-shaped rotating rod 7 rotates relatively, the ejector rod 13 is jacked up, the upper end of the ejector rod 13 jacks up the formed die, and the automatic demolding process is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a complicated curved surface injection molding, includes bed die (1), its characterized in that: an upper die (2) is arranged at the upper end of a lower die (1), a pair of guide posts (3) which are symmetrical to each other are vertically welded on the left side and the right side of the lower end of the lower die (1), a bottom plate (5) is arranged at the lower end of the lower die (1), the bottom plate (5) is slidably mounted in an inner cavity of a base (6), an X-shaped rotating rod (7) is arranged between the bottom plate (5) and the base (6), two pairs of mutually symmetrical sliding grooves (8) are arranged between the lower end surface of the bottom plate (5) and the upper end surface of the base (6), a sleeve rod (11) is transversely inserted into the inner cavity of each sliding groove (8), the X-shaped rotating rod (7) is composed of two connecting rods which are mutually crossed and rotatably mounted, a sliding block (9) is welded at the end part of each connecting rod of the X-shaped rotating rod (7), an ejector rod (13) is vertically and upwards fixedly mounted at the middle connecting position of the X-, and a spring (10) is arranged between the end face of the sliding block (9) far away from the X-shaped rotating rod (7) and the inner wall of the sliding groove (8), adjusting grooves (15) are arranged on the left side and the right side of the base (6), and a screw rod (12) is vertically arranged in the inner cavity of each adjusting groove (15).

2. The injection mold of a complex curved surface injection molded part according to claim 1, wherein: the upper end of the upper die (2) is provided with an injection molding opening (16), the left end and the right end of the upper end face of the upper die (2) are sleeved on the outer wall of the upper end of the guide post (3), and the upper die (2) and the guide post (3) are fixed through a locking nut (4).

3. The injection mold of a complex curved surface injection molded part according to claim 1, wherein: the spring (10) is sleeved on the outer wall of the loop bar (11), one end of the spring (10) abuts against the inner wall of the sliding groove (8), and the other end of the spring (10) abuts against the side face of the sliding block (9).

4. The injection mold of a complex curved surface injection molded part according to claim 1, wherein: the lower end of the ejector rod (13) is fixed in the middle of the X-shaped rotating rod (7), the outer wall of the middle section of the ejector rod (13) penetrates through the bottom plate (5) and the lower die (1) in sequence, and the upper end of the ejector rod (13) extends to the lower end of the lower die cavity.

5. The injection mold of a complex curved surface injection molded part according to claim 1, wherein: the left end and the right end of the bottom plate (5) are sleeved on the outer wall of the screw rod (12) in a sliding mode, the lower end of the bottom plate (5) is provided with an adjusting nut (14), and the adjusting nut (14) is installed on the outer wall of the screw rod (12) in a rotating mode.