CN211054301U

CN211054301U - Injection screw mold with adjustable threads

Info

Publication number: CN211054301U
Application number: CN201921985196.9U
Authority: CN
Inventors: 万春芬; 於雷; 卢伟
Original assignee: Hubei Engineering Institute
Current assignee: Hubei Engineering Institute
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-07-21
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses an adjustable threaded injection screw mould, including the mould base, two screw injection molding cavities have been seted up on the mould base, all the laminating has the fin on the both sides inner wall in screw injection molding cavity, the pull rod is still installed to the both sides in screw injection molding cavity, and the pull rod is located the inside of mould base, be connected through the spring tube between pull rod and the fin, the block is installed at the top of pull rod, the block is located the top surface spout of mould base, install bolt spare between the fin of block and screw injection molding cavity inner wall, and bolt spare is located the top of mould base, department directly over the spring tube, set up the screw thread on the fin. The utility model discloses the pulling pull rod can drive the fin and slope, reaches the interval effect between the screw thread on the two inner wall fins in adjusting screw injection molding chamber to this adjusting screw thread size's difference, and insert through the bolt spare and carry out spacing fixed fin between two adjacent spring tubes contained angle, play the convenient screw's of moulding plastics effect of fixed fin.

Description

Injection screw mold with adjustable threads

Technical Field

The utility model relates to a screw injection mold, in particular to adjustable threaded injection screw mould.

Background

The screw is widely used in daily life and work, common screw has metal or plastic to make, and the plastic screw adopts injection mold injection moulding in-process, because the die cavity is fixed single structure, can not adjust screw thread width, and the screw mould preparation of different models size need be adopted to every kind of different plastic screw.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art's defect, provide an adjustable threaded injection screw mould, the utility model discloses the pulling pull rod can drive the fin and slope, reaches the interval effect between the screw thread on the two inner wall fins in adjusting screw injection molding chamber to this difference of adjusting screw thread size, and insert through the bolt spare that the contained angle carries out spacing fixed fin between two adjacent spring tubes, plays the convenient effect of moulding plastics the screw of fixed fin.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a screw mould of moulding plastics of adjustable screw thread, including the mould base, two screws of having seted up on the mould base chamber of moulding plastics, all the laminating has the fin on the both sides inner wall in chamber is moulded plastics to the screw, the pull rod is still installed to the both sides in chamber of moulding plastics to the screw, and the pull rod is located the inside of mould base, be connected through the spring tube between pull rod and the fin, the block is installed at the top of pull rod, the block is located the top surface spout of mould base, install bolt spare between the fin of block and the screw intracavity wall of moulding plastics, and the bolt spare is located the top of mould base, spring tube directly over department, set up the screw thread on the fin.

As an optimized technical scheme of the utility model, the quantity of spring pipe is five, and five spring pipes are parallel arrangement each other.

As an optimal technical scheme of the utility model, the fin is the arc structure, laminates on the both sides inner wall in screw injection molding chamber.

As an optimized technical scheme of the utility model, pull rod, spring pipe all are located the inside cavity of mould base.

As an optimal technical scheme of the utility model, pull rod and top surface spout sliding connection.

As an optimized technical scheme of the utility model, the diameter of bolt spare and the interval between two adjacent spring pipes equal.

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

the utility model discloses the pulling pull rod can drive the fin and slope, reaches the interval effect between the screw thread on the two inner wall fins in adjusting screw injection molding chamber to this adjusting screw thread size's difference, and insert through the bolt spare and carry out spacing fixed fin between two adjacent spring tubes contained angle, play the convenient screw's of moulding plastics effect of fixed fin.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall structure of the present invention;

FIG. 2 is a drawing of the connecting structure of the tie bar and the fin of the present invention;

FIG. 3 is a structural diagram of the injection molding screw of the present invention;

in the figure: 1. a mold base; 2. a screw injection molding cavity; 3. a fin; 4. a pull rod; 5. a spring tube; 6. capping; 7. a top surface chute; 8. a latch member; 9. and (4) threading.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention. Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-3, the utility model provides an adjustable threaded injection screw mould, including mould base 1, mould base 1 is last to have seted up two screws and to mould plastics chamber 2, all laminate on the both sides inner wall in screw injection chamber 2 and have had fin 3, pull rod 4 is still installed to the both sides in screw injection chamber 2, and pull rod 4 is located mould base 1's inside, be connected through spring tube 5 between pull rod 4 and the fin 3, block 6 is installed at pull rod 4's top, block 6 is located mould base 1's top surface spout 7, install bolt spare 8 between block 6 and the fin 3 of screw injection chamber 2 inner walls, and bolt spare 8 is located mould base 1's top, department directly over spring tube 5, set up screw thread 9 on the fin 3.

Further, the quantity of spring pipe 5 is five, and the mutual parallel arrangement of five spring pipes 5, can be through the block 6 on the manual pulling pull rod 4 for pull rod 4 slides in top surface spout 7, drives fin 7 by spring pipe 5 and controls the displacement in the inside of screw injection molding chamber 2, makes fin 7 between the 2 both sides inner walls of screw injection molding chamber can the spacing, adjusts the interval size between the screw thread 9 on the fin 7 with this.

Fin 3 is the arc structure, laminates on the both sides inner wall of screw injection molding chamber 2, and the normal formation of moulding plastics of guarantee screw thread 9.

Pull rod 4, spring pipe 5 all are located the inside cavity of mould base 1, make things convenient for pull rod 4 and spring pipe 5 to move in the inside cavity of mould base 1.

The pull rod 4 is connected with the top surface sliding groove 7 in a sliding mode, so that the cap 6 at the top of the pull rod 4 can be conveniently pulled manually, and the pull rod 4 is driven to slide at the top surface sliding groove 7.

The diameter of the bolt piece 8 is equal to the distance between two adjacent spring tubes 5, so that after the bolt piece 8 is inserted, the bottom end of the bolt piece 8 is inserted between the two spring tubes 5 to play a role in limiting and fixing the spring tubes 5.

Specifically, when using, at first make the size of screw as required, block 6 on the pull rod 4 through manual pulling, make pull rod 4 slide in top surface spout 7, drive fin 7 by spring tube 5 and carry out left right shift in the inside of screw injection molding chamber 2, make fin 7 between the 2 both sides inner walls of screw injection molding chamber can the spacing, adjust the interval size between screw thread 9 on the fin 7 with this, the material of will moulding plastics is poured into to the inside of screw injection molding chamber 2 and is moulded plastics, heat whole can mould plastics after merging two the same mould bases 1 of structure in opposite directions, as shown in fig. 3.

The utility model discloses pulling pull rod 4 can drive fin 7 and slope, reaches the interval effect between the screw thread 9 on 2 two inner wall fins 7 in adjusting screw injection molding chamber to this difference of adjusting screw thread 9 size, and insert through bolt piece 8 that the contained angle carries out spacing fixed fin 7 between two adjacent spring tubes 5, play the effect of the convenient screw of moulding plastics of fixed fin 7.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection screw mold with adjustable threads comprises a mold base (1) and is characterized in that two screw injection molding cavities (2) are formed in the mold base (1), fins (3) are attached to inner walls of two sides of each screw injection molding cavity (2), pull rods (4) are further mounted on two sides of each screw injection molding cavity (2), the pull rods (4) are located inside the mold base (1), the pull rods (4) are connected with the fins (3) through spring tubes (5), caps (6) are mounted at the tops of the pull rods (4), the caps (6) are located in top surface sliding grooves (7) of the mold base (1), plug pin pieces (8) are mounted between the caps (6) and the fins (3) on the inner walls of the screw injection molding cavities (2), and the plug pin pieces (8) are located at the top ends of the mold base (1) and right above the spring tubes (5), the fin (3) is provided with threads (9).

2. An injection screw mould with adjustable thread according to claim 1, characterized in that the number of spring tubes (5) is five, and five spring tubes (5) are arranged in parallel.

3. An injection screw mold with adjustable threads according to claim 1, characterized in that the fins (3) are of an arc-shaped structure and are attached to the inner walls of the two sides of the screw injection cavity (2).

4. An adjustable thread injection screw mold as claimed in claim 1, wherein the tie rod (4) and the spring tube (5) are located in a cavity inside the mold base (1).

5. An adjustable thread injection screw mold as claimed in claim 1, wherein the tie rod (4) is slidably connected to the top surface runner (7).

6. An adjustable thread injection screw mold as claimed in claim 1, characterized in that the diameter of the pin member (8) is equal to the distance between two adjacent spring tubes (5).