阅读说明：本技术 一种梭芯套及其制造方法 (kinds of shuttle core sleeve and its making method ) 是由 徐凤南 王有昌 于 2019-11-26 设计创作，主要内容包括：本发明公开了一种梭芯套,包括塑料梭壳,塑料梭壳的上方设有金属底板,金属底板的上方设有金属盖板,塑料梭壳的一侧设有金属嵌块,且塑料梭壳的外侧对应金属嵌块的位置连接有金属梭皮；本发明还公开了一种梭芯套的制造方法。本发明的梭壳采用塑料材质,通过压注一次成型,无需经过多道加工工序,生产工艺简单,加工成本低；本发明在塑料梭壳过线处通过压注连接有金属嵌块,防止过线对塑料梭壳造成磨损,从而增加塑料梭壳的使用寿命；本发明的金属嵌块采用浇钢件,与塑料梭壳通过压注连接,生产工艺简单,生产成本低。(The invention discloses a shuttle peg sleeve which comprises a plastic shuttle shell, wherein a metal bottom plate is arranged above the plastic shuttle shell, a metal cover plate is arranged above the metal bottom plate, a metal embedded block is arranged on the side of the plastic shuttle shell, and a metal bobbin skin is connected to the outer side of the plastic shuttle shell corresponding to the position of the metal embedded block.)

The bobbin case is characterized by comprising a plastic bobbin case (5), a metal bottom plate (2) is arranged above the plastic bobbin case (5), a metal cover plate (1) is arranged above the metal bottom plate (2), a metal insert block (7) is arranged on the side of the plastic bobbin case (5), and a metal bobbin case (4) is connected to the outer side of the plastic bobbin case (5) corresponding to the position of the metal insert block (7).

2. The kinds of bobbin case according to claim 1, wherein the plastic bobbin case (5) has a bobbin (55) inside, a bottom groove (52) above the bobbin (55), a middle groove (53) above the bottom groove (52), the metal bottom plate (2) is located inside the bottom groove (52), and the metal cover plate (1) is located inside the middle groove (53).

3. type bobbin case according to claim 2, wherein the side of the bottom groove (52) is provided with a spring hole (54), and a spring (6) is inserted into the spring hole (54).

4. type bobbin case according to claim 3, wherein the handle (51) is integrally formed at the upper of the plastic bobbin case (5).

5. The kinds of shuttle core sleeves according to claim 4, wherein the metal insert block (7) is provided with a pull hole (72), and the metal insert block (7) is further provided with a plurality of fabrication holes (71).

6. The bobbin case according to claim 5, wherein a thread-drawing slot (56) is provided on the plastic bobbin case (5) below the thread-drawing hole (72).

7. The bobbin case of kinds of claim 6, wherein the plastic bobbin case (5) has bobbin case foot slots (57) corresponding to the two sides of the metal insert (7), the two ends of the metal bobbin case (4) are located in the bobbin case foot slots (57), the metal bobbin case (4) and the metal insert (7) have screw holes (73), and the metal bobbin case (4) and the metal insert (7) are engaged with the screw holes (73) through metal screws (3).

8. type shuttle core sleeve according to claim 7, wherein the metal insert (7) is a cast steel member.

9. A method of manufacturing a bobbin case according to any one of claims 1 to 8 to comprising the steps of:

() when the plastic bobbin case (5) is molded by pressure injection, the metal insert block (7) is placed in a corresponding position in a mould, and the plastic is melted and then is molded by pressure injection into the cavity of the mould;

secondly, embedding two ends of the metal bobbin case (4) into the bobbin case foot grooves (57), and fixing the metal bobbin case (4) and the metal embedding blocks (7) through the engagement of metal screws (3) and screw holes (73);

thirdly, inserting the spring (6) into the spring hole (54), and then installing the metal bottom plate (2);

and fourthly, mounting the metal cover plate (1) to finish assembly.

10. The manufacturing method of the bobbin case according to claim 9, wherein the shuttle (55) is arranged inside the plastic bobbin case (5), the bottom groove (52) is arranged above the shuttle (55), the middle groove (53) is arranged above the bottom groove (52), the metal bottom plate (2) is arranged inside the bottom groove (52), the metal cover plate (1) is arranged inside the middle groove (53), the spring hole (54) is arranged on the side of the bottom groove (52), the handle (51) is connected to the upper portion of the plastic bobbin case (5) in a connecting mode body forming mode, the metal insert block (7) is provided with the thread pulling hole (72), the metal insert block (7) is further provided with a plurality of process holes (71), the thread pulling groove (56) corresponding to the thread pulling hole (72) is arranged on the plastic bobbin case (5), the bobbin case foot grooves (57) are respectively arranged on two sides of the metal insert block (7) corresponding to the metal insert block (7), two ends of the metal bobbin case (4) are arranged inside the bobbin case foot grooves (57), the metal bobbin case (4) and the metal insert block (7) is respectively engaged with the metal insert block (73) through the screw, and the metal insert block (73) is respectively connected with the metal insert block (7).

Technical Field

The invention belongs to the technical field of bobbin cases, and particularly relates to bobbin cases and a manufacturing method thereof.

Background

The spindle sleeve of household machine (including multifunctional 1850) is composed of bobbin case, cover plate, bottom plate, spring and metal screw. The shell is a main part, and a shell blank is formed by cutting, flattening, tempering and cold stamping low-carbon steel (phi 16 wire) originally. Then the shell is processed by dozens of machining and roughening procedures to form a semi-finished shell, and then the semi-finished shell is processed by heat treatment quenching, polishing and sand bottom to form the final shell for assembly. Because the process is complex, the proportion of the required processing cost to the total cost is up to more than 70%.

Disclosure of Invention

The invention aims to provide types of shuttle core sleeves to solve the problems in the background technology, and types of shuttle core sleeves provided by the invention have the characteristics of long service life and low manufacturing cost.

Another object of the present invention is to provide a method of manufacturing types of the bobbin case.

In order to achieve the purpose, the invention provides the following technical scheme that the bobbin case comprises a plastic bobbin case, a metal bottom plate is arranged above the plastic bobbin case, a metal cover plate is arranged above the metal bottom plate, a metal insert block is arranged on the side of the plastic bobbin case, and a metal bobbin case is connected to the outer side of the plastic bobbin case corresponding to the position of the metal insert block.

According to the invention, steps are carried out, a shuttle is arranged inside the plastic shuttle shell, a bottom groove is arranged above the shuttle , a middle groove is arranged above the bottom groove, the metal bottom plate is positioned inside the bottom groove, and the metal cover plate is positioned inside the middle groove.

In the present invention, , a spring hole is formed at side of the bottom groove, and a spring is inserted into the spring hole.

In a further step of the present invention, a handle is integrally formed on the upper portion of the plastic bobbin case.

According to the invention, steps are carried out, the metal insert block is provided with a pull wire hole, and the metal insert block is also provided with a plurality of process holes.

In the invention , a thread drawing groove is arranged below the plastic shuttle shell corresponding to the thread drawing hole.

According to the invention, steps are carried out, bobbin skin foot grooves are respectively arranged on two sides of the plastic bobbin case corresponding to the metal embedded blocks, two ends of the metal bobbin skin are positioned in the bobbin skin foot grooves, screw holes are respectively arranged on the metal bobbin skin and the metal embedded blocks, and the metal bobbin skin and the metal embedded blocks are meshed and connected with the screw holes through metal screws.

In a further step of the present invention, the metal insert is a cast steel component.

In a further step of the present invention, the method for manufacturing a bobbin case comprises the steps of:

() when the plastic bobbin case is molded by pressure injection, the metal insert block is placed in a corresponding position in a mould, and the plastic is melted and then is molded by pressure injection into the cavity of the mould;

secondly, embedding two ends of the metal bobbin skin into the bobbin skin foot grooves, and fixing the metal bobbin skin and the metal embedding blocks through the engagement of metal screws and screw holes;

inserting the spring into the spring hole, and then installing the metal bottom plate;

and fourthly, mounting the metal cover plate to complete assembly.

steps are entered, the manufacturing method of the bobbin case comprises the steps that a shuttle is arranged inside a plastic shuttle case, a bottom groove is arranged above a shuttle , a middle groove is arranged above the bottom groove, a metal bottom plate is arranged inside the bottom groove, a metal cover plate is arranged inside the middle groove, a spring hole is arranged on the side of the bottom groove, a body-formed handle is connected to the upper portion of the plastic shuttle case, a pull wire hole is arranged on a metal embedding block, a plurality of process holes are further arranged on the metal embedding block, a pull wire groove is arranged below the plastic shuttle case corresponding to the pull wire hole, bobbin case foot grooves are respectively arranged on the two sides of the plastic shuttle case corresponding to the metal embedding block, two ends of a metal bobbin case are arranged in the bobbin case foot grooves, screw holes are respectively arranged on the metal bobbin case and the metal embedding block, the metal bobbin case and the metal embedding block are connected in a meshed mode through metal screws, and the metal embedding block is a cast.

Compared with the prior art, the invention has the beneficial effects that:

1. the bobbin case is made of plastic, is molded for times by pressure injection, does not need a plurality of processing procedures, and has simple production process and low processing cost;

2. the metal insert block is connected to the threading position of the plastic bobbin case by pressure injection, so that the plastic bobbin case is prevented from being abraded by threading, and the service life of the plastic bobbin case is prolonged;

3. the metal insert block adopts the cast steel piece and is connected with the plastic shuttle shell through injection molding, the production process is simple, and the production cost is low.

Drawings

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

FIG. 2 is a schematic illustration of an explosive structure according to the present invention;

FIG. 3 is a schematic structural view of the plastic bobbin case and the metal insert after injection molding;

FIG. 4 is a schematic view of the metal insert of the present invention;

in the figure, the bobbin comprises a metal cover plate 1, a metal bottom plate 2, a metal screw 3, a metal bobbin case 4, a metal bobbin case 5, a plastic bobbin case shell 51, a handle 52, a bottom groove 53, a middle groove 54, a spring hole 55, a bobbin , a metal insert block 56, a thread pulling groove 57, a bobbin case foot groove 6, a spring 7, a metal insert block 71, a fabrication hole 72, a thread pulling hole 73 and a screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.