CN211868576U

CN211868576U - Different-direction building block type screw rod for extruder

Info

Publication number: CN211868576U
Application number: CN202020107243.6U
Authority: CN
Inventors: 陆钉毅
Original assignee: Wuxi Boyu Plastic Machinery Co ltd
Current assignee: Wuxi Boyu Plastic Machinery Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-11-06
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a different-direction building block type screw rod for an extruder, which comprises a mandrel, wherein the mandrel comprises a first shaft rod, a second shaft rod and a third shaft rod, one end of the first shaft rod is integrally formed with the second shaft rod, the other end of the first shaft rod is integrally formed with the third shaft rod, splines are fixedly connected with the outer walls of the second shaft rod and the third shaft rod, one end of the second shaft rod is provided with a threaded hole, the outside of the mandrel is provided with a first spiral element, one side of the first spiral element is provided with a single-head thread block, both ends of the single-head thread block are provided with distance rings, the inner wall of each distance ring is integrally formed with convex teeth, one side of the single-head thread block is provided with a second spiral element, the utility model adopts the design of separating building block type screw rods, so that the building block type screw rod section matching with different mandrels and threads can process various material media, the characteristics of long production cycle, difficult maintenance and high cost of the traditional extruder screw are changed.

Description

Different-direction building block type screw rod for extruder

Technical Field

The utility model relates to an extruder accessory technical field specifically is a incorgruous cordwood system screw rod for extruder.

Background

Extruders belong to one of the classes of plastic machines, originating from the 18 th century. The extruder can divide the machine head into a right-angle machine head, an oblique-angle machine head and the like according to the material flow direction of the machine head and the included angle of the central line of the screw. The screw extruder depends on the pressure and the shearing force generated by the rotation of the screw, so that materials can be fully plasticized and uniformly mixed and are molded through a neck mold. Plastics extruders can be largely classified into twin-screw extruders, single-screw extruders and, less frequently, multi-screw extruders and also screwless extruders.

The screw is the heart of the extruder and is a key part of the extruder, and the performance of the screw determines the productivity, plasticizing quality, additive dispersibility, melt temperature, power consumption and the like of one extruder. Is the most important part of the extruder and can directly influence the application range and the production efficiency of the extruder. The plastic can move, pressurize and obtain part of heat from friction only in the material cylinder under the action of extreme pressure generated by the rotation of the screw, the plastic is mixed and plasticized in the moving process of the material cylinder, and the melt in the viscous flow state is extruded to flow through the die to obtain the required shape for molding. Like the barrel, the screw is also made of a high strength, heat and corrosion resistant alloy.

However, the existing extruder threaded rods mainly have the following disadvantages:

1. the threaded rod for the existing extruder has an integrated structure, and threaded components on the threaded rod are worn and worn, so that the threaded rod is inconvenient to replace, difficult to maintain and high in cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a incorgruous cordwood system screw rod for extruder to solve among the above-mentioned background art current threaded rod for extruder formula structure as an organic whole, the wearing and tearing of the screw assembly vulnerable part on the threaded rod, the change of being not convenient for has moreover caused the problem of difficult maintenance, the characteristics that the costal expense is high.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a heterodromous cordwood system screw rod for extruder, includes the dabber, the dabber includes axostylus axostyle, No. two axostylus axostyles and No. three axostylus axostyles, No. two axostylus axostyles one end integrated into one piece have No. two axostylus axostyles, No. one axostylus axostyle other end integrated into one piece has No. three axostylus axostyles, No. two axostylus axostyles and the equal fixedly connected with spline of No. three axostylus axostyles outer wall, No. two axostylus axostyles one end set up threaded hole, dabber externally mounted has a helical element, No. one helical element installs single thread piece.

Preferably, the diameter of a shaft is greater than No. two axostylus axostyles and No. three axostylus axostyles, and the length of No. two axostylus axostyles is greater than No. one axostylus axostyle and No. three axostylus axostyles, is convenient for fix a position single thread piece.

Preferably, the first screw element is connected with the second shaft rod, the single-end screw block is connected with the first shaft rod, and the second screw element is connected with the third shaft rod, so that the single-end screw block, the first screw element and the second screw element can be conveniently installed.

Preferably, the locking nut is rotatably connected with the threaded hole, so that the component is fixed and prevented from slipping.

The utility model provides a different direction cordwood system screw rod for extruder possesses following beneficial effect:

(1) the utility model discloses a single thread piece cover is on dabber middle section position, specifically be located the axostylus axostyle, entangle through the spline, and the distance ring is installed at the both ends of single thread piece, integrated into one piece has the dogtooth on the ring inner wall of distance, and the dogtooth cooperatees with the spline, fix single thread piece on the axostylus axostyle, then install helical element No. two on No. two axostylus axostyles respectively, install helical element No. two on No. three axostylus axostyles, then pin at the dabber foremost with lock nut, the adoption is the design of separately cordwood system screw rod, make the cordwood system screw rod section of different dabbers and screw threads of unit screw rod collocation alright carry out the processing of multiple material medium, change traditional extruder screw rod production cycle length.

Drawings

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

fig. 2 is a schematic view of the structure of the mandrel of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the mandrel of the present invention;

figure 4 is a schematic view of the spacer ring structure of the present invention.

In the figure: 1. a mandrel; 101. a first shaft lever; 102. a second shaft lever; 103. a third shaft lever; 104. a spline; 105. a threaded hole; 2. a first helical element; 3. a single-ended threaded block; 4. a distance ring; 401. a convex tooth; 5. a second helical element; 6. and locking the nut.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a heterodromous cordwood system screw rod for extruder, includes dabber 1, dabber 1 includes No. one axostylus axostyle 101, No. two axostylus axostyles 102 and No. three axostylus axostyles 103, No. one axostylus axostyle 101 one end integrated into one piece has No. two axostylus axostyles 102, No. one axostylus axostyle 101 other end integrated into one piece has No. three axostylus axostyle 103, No. two axostylus axostyles 102 and No. three axostylus axostyles 103 outer wall equal fixedly connected with spline 104, No. two axostylus axostyles 102 one end is seted up threaded hole 105, dabber 1 externally mounted has No. one screw element 2, No. 2 one side of screw element is installed single thread piece 3, distance ring.

The single-end threaded block 3 is sleeved on the middle section of the mandrel 1, and is specifically positioned on the first shaft rod 101, and is sleeved through the spline 104, the distance rings 4 are installed at two ends of the single-end threaded block 3, the convex teeth 401 are integrally formed on the inner wall of each distance ring 4, the convex teeth 401 are matched with the spline 104, the single-end threaded block 3 is fixed on the first shaft rod 101, then the first spiral element 2 is installed on the second shaft rod 102, the second spiral element 5 is installed on the third shaft rod 103, and then the foremost end of the mandrel 1 is locked by the locking nut 6.

The diameter of the first shaft rod 101 is larger than the second shaft rod 102 and the third shaft rod 103, and the length of the second shaft rod 102 is larger than the first shaft rod 101 and the third shaft rod 103, so that the single-end thread block 3 is convenient to position.

The first screw element 2 is connected with the second shaft rod 102, the single-end screw block 3 is connected with the first shaft rod 101, and the second screw element 5 is connected with the third shaft rod 103, so that the single-end screw block 3, the first screw element 2 and the second screw element 5 can be conveniently installed.

The locking nut 6 is rotatably connected with the threaded hole 105, and plays a role in fixing the components and preventing slipping.

It should be noted that, when the anisotropic building block type screw for an extruder works, a mandrel 1 comprises a first shaft rod 101, a second shaft rod 102 and a third shaft rod 103, one end of the first shaft rod 101 is integrally formed with the second shaft rod 102, the other end of the first shaft rod 101 is integrally formed with the third shaft rod 103, splines 104 are fixedly connected with the outer walls of the second shaft rod 102 and the third shaft rod 103, one end of the second shaft rod 102 is provided with a threaded hole 105, the outside of the mandrel 1 is provided with a first spiral element 2, one side of the first spiral element 2 is provided with a single-head thread block 3, both ends of the single-head thread block 3 are provided with a distance ring 4, the inner wall of the distance ring 4 is integrally formed with a convex tooth 401, one side of the single-head thread block 3 is provided with a second spiral element 5, one end of the mandrel 1 is provided with a locking nut 6, the single-head thread block 3 is sleeved on, the single-head screw block is sleeved by the spline 104, the distance rings 4 are arranged at two ends of the single-head screw block 3, the convex teeth 401 are integrally formed on the inner wall of the distance ring 4, the convex teeth 401 are matched with the spline 104, the single-head screw block 3 is fixed on the first shaft rod 101, then the first screw element 2 is respectively arranged on the second shaft rod 102, the second screw element 5 is arranged on the third shaft rod 103, then the foremost end of the mandrel 1 is locked by the locking nut 6, the design of a split building block type screw rod is adopted, so that a unit screw rod is matched with building block type screw rod sections with different mandrels and threads to process various material media, the characteristics of long production period, difficult maintenance and high cost of a traditional extruder screw rod are changed, the diameter of the first shaft rod 101 is greater than that of the second shaft rod 102 and the third shaft rod 103, and the length of the second shaft rod 102 is greater than that of the first shaft rod 101 and the third shaft rod 103, thereby being convenient for positioning, screw element 2 links up with No. two axostylus axostyles 102 mutually, and single thread piece 3 links up with axostylus axostyle 101 mutually, and No. two screw element 5 links up with No. three axostylus axostyles 103 mutually, and the installation between the single thread piece 3 of being convenient for, screw element 2 and No. two screw element 5, lock nut 6 rotates with screw hole 105 to be connected, plays the fixed action to the part, prevents the slippage.

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. A different direction cordwood system screw rod for extruder which characterized in that: the mandrel comprises a mandrel (1), the mandrel (1) comprises a first shaft rod (101), a second shaft rod (102) and a third shaft rod (103), the second shaft rod (102) is integrally formed at one end of the first shaft rod (101), the third shaft rod (103) is integrally formed at the other end of the first shaft rod (101), splines (104) are fixedly connected to the outer walls of the second shaft rod (102) and the third shaft rod (103), a threaded hole (105) is formed in one end of the second shaft rod (102), a first spiral element (2) is installed outside the mandrel (1), a single-end thread block (3) is installed on one side of the first spiral element (2), distance rings (4) are installed at two ends of the single-end thread block (3), convex teeth (401) are integrally formed on the inner wall of the distance rings (4), and a second spiral element (5) is installed on one side of the single-end thread block (3), and a locking nut (6) is installed at one end of the mandrel (1).

2. The anisotropic cordwood screw for an extruder as claimed in claim 1, wherein: the diameter of the first shaft rod (101) is larger than the second shaft rod (102) and the third shaft rod (103), and the length of the second shaft rod (102) is larger than the first shaft rod (101) and the third shaft rod (103).

3. The anisotropic cordwood screw for an extruder as claimed in claim 1, wherein: the first spiral element (2) is connected with the second shaft rod (102), the single-end thread block (3) is connected with the first shaft rod (101), and the second spiral element (5) is connected with the third shaft rod (103).

4. The anisotropic cordwood screw for an extruder as claimed in claim 1, wherein: the locking nut (6) is rotatably connected with the threaded hole (105).