CN210368219U

CN210368219U - Split type sewing machine needle bar

Info

Publication number: CN210368219U
Application number: CN201921166598.6U
Authority: CN
Inventors: 张克山
Original assignee: Zhejiang Yaoshan Precision Machinery Co Ltd
Current assignee: Zhejiang Yaoshan Precision Machinery Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-21
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a split type sewing machine needle bar relates to sewing machine needle bar field, is the integral type structure to current sewing machine's the body of rod, and production and processing is comparatively inconvenient, and when damaging, needs to change wholly, and the higher problem of cost now proposes following scheme, and it includes the body of rod, fixed nest block, top fastener, the body of rod is cylindrical structure, fixed nest block cover is established in the outside of the body of rod, first screw has been seted up on the fixed nest block, and has seted up the trepanning in the vertical direction of fixed nest block's inside edge, telescopic hole has been seted up on the inner wall of trepanning, telescopic hole is provided with expanding spring and location inserted block, second screw and locating hole have been seted up on the outer wall of the body of rod. The utility model discloses novel structure, and the split type structure that the sewing machine needle bar constitutes for the body of rod and fixed nest block, top fastener, its production and processing is simple and convenient, and when damaging, can directly change the part of damage, effectual reduce cost.

Description

Split type sewing machine needle bar

Technical Field

The utility model relates to a sewing machine needle bar field especially relates to a split type sewing machine needle bar.

Background

The sewing machine needle bar is the important accessory of installation sewing machine seam needle, is the accessory of the important component of sewing machine, and the variety of current seam needle is various, and consequently the variety of its needle bar also is various, nevertheless, present needle bar structure all formula structure as an organic whole usually, and the needle bar subassembly of formula structure adds man-hour in production, and processing is more inconvenient, and the needle bar when damaging, need change whole, and the cost is higher, for this reason we design a split type sewing machine needle bar and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a split type sewing machine needle bar has solved current sewing machine's the body of rod and has been the integral type structure, and production and processing is comparatively inconvenient, and when damaging, needs to change wholly, the higher problem of cost.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a split type sewing machine needle bar, includes the body of rod, fixed cover piece, top fastener, the body of rod is cylindrical structure, fixed cover piece cover is established in the outside of the body of rod, and the top fastener is connected at the top of the body of rod, first screw has been seted up on the fixed cover piece, and the trepanning has been seted up along vertical direction in the inside of fixed cover piece, telescopic hole has been seted up on the inner wall of trepanning, telescopic hole is provided with expanding spring and location inserted block, second screw and locating hole have been seted up on the outer wall of the body of rod, the locating hole sets up the top at the second screw, the top of the body of rod is fixed with the top screw rod, and the bottom of top fastener has seted.

Preferably, the first screw hole corresponds to the second screw hole in position, and when the fixing sleeve block is sleeved on the rod body, the first screw hole and the second screw hole are connected with a locking screw.

Preferably, the position of the hole groove of the positioning hole corresponds to the position of the positioning insertion block when the fixed sleeve block is sleeved on the rod body.

Preferably, the trepanning inside the fixed nest block is a cylindrical hole, the trepanning penetrates through the vertical surface of the fixed nest block, and the radius of the trepanning is slightly larger than that of the rod body.

Preferably, the top screw rod at the top of the rod body is matched with the connecting screw hole at the bottom of the top clamping piece in size, and the threads on the top screw rod are meshed with the threads inside the connecting screw hole.

The utility model has the advantages that: the utility model discloses, the sewing machine needle bar is the body of rod and the split type structure that fixed nest of blocks, top fastener constitute, and its production and processing is simple and convenient, and when damaging, can directly change the part of damage, effectual reduce cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the rod body structure in fig. 1.

Fig. 3 is a structural bottom view of the top clip of fig. 1.

Fig. 4 is a structural bottom view of the fixed nest block of fig. 1.

Reference numbers in the figures: the telescopic rod comprises a rod body 1, a fixed sleeve block 2, a top clamping piece 3, a first screw hole 4, a second screw hole 5, a positioning hole 6, a top screw rod 7, a connecting screw hole 8, a sleeve hole 9, a locking screw 10, a telescopic hole 11, a telescopic spring 12 and a positioning insertion block 13.

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.

Referring to fig. 1-4, a split needle bar for a sewing machine comprises a bar body 1, a fixing sleeve block 2, a top fastener 3, wherein the bar body 1 is a cylindrical structure, the fixing sleeve block 2 is sleeved outside the bar body 1, the top fastener 3 is connected to the top of the bar body 1, a first screw hole 4 is formed on the fixing sleeve block 2, a sleeve hole 9 is formed in the fixing sleeve block 2 along the vertical direction, a telescopic hole 11 is formed in the inner wall of the sleeve hole 9, a telescopic spring 12 and a positioning insert 13 are arranged in the telescopic hole 11, a second screw hole 5 and a positioning hole 6 are formed in the outer wall of the bar body 1, the positioning hole 6 is arranged above the second screw hole 5, the first screw hole 4 corresponds to the second screw hole 5, when the fixing sleeve block 2 is sleeved on the bar body 1, a locking screw 10 is connected between the first screw hole 4 and the second screw hole 5, the position of the positioning hole 6 corresponds to the position of the positioning insert 13 when the fixing sleeve block 2 is sleeved on, the top of the body of rod 1 is fixed with top screw rod 7, and the bottom of top fastener 3 has seted up and has connected screw 8, and the trepanning 9 of the inside of fixed nest block 2 is the cylindricality hole, and trepanning 9 runs through the vertical face of fixed nest block 2, and the radius size of trepanning 9 is slightly bigger than the radius of the body of rod 1, and the top screw rod 7 at the 1 top of the body of rod matches with the size of the connection screw 8 of the 3 bottoms of top fastener, and the screw thread on the top screw rod 7 and the inside screw thread intermeshing of being connected screw 8.

The working principle is as follows: the utility model discloses when using, the sewing machine needle bar passes through the body of rod 1, fixed nest of blocks 2 is connected with top fastener 3 and forms, concrete top screw rod through 1 top of the body of rod is screwed and is fixed in the connection screw 8 in top fastener 3, and establish on the body of rod 1 through 2 covers of fixed nest of blocks, and fix in 2 in the nest of blocks location inserted block 13 setting in the cover hole 9 in the body of rod 6 on the body of rod 1, fix nest of blocks 2 and the body of rod 1 tentatively, location through location inserted block 13 and locating hole 6, make the position of first screw 4 and second screw 5 correspond, it is fixed with body of rod 1 to be connected fixed nest of blocks 2 through locking screw 10, the sewing machine needle bar is body of rod 1 and fixed nest of blocks 2, the split type structure that top fastener 3 constitutes, its production and processing is simple and convenient, and when damaging, can directly change the part of damage, effectual reduce cost.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A split type needle bar of a sewing machine comprises a bar body (1), a fixed sleeve block (2) and a top clamping piece (3), and is characterized in that the bar body (1) is of a cylindrical structure, the fixed sleeve block (2) is sleeved outside the bar body (1), the top clamping piece (3) is connected to the top of the bar body (1), a first screw hole (4) is formed in the fixed sleeve block (2), a sleeve hole (9) is formed in the fixed sleeve block (2) along the vertical direction, a telescopic hole (11) is formed in the inner wall of the sleeve hole (9), a telescopic spring (12) and a positioning insertion block (13) are arranged in the telescopic hole (11), a second screw hole (5) and a positioning hole (6) are formed in the outer wall of the bar body (1), the positioning hole (6) is arranged above the second screw hole (5), a top screw rod (7) is fixed at the top of the bar body (1), and the bottom of the top clamping piece (3) is provided with a connecting screw hole (8).

2. The needle bar of a split-type sewing machine according to claim 1, wherein the first screw hole (4) and the second screw hole (5) are positioned correspondingly, and when the fixing sleeve block (2) is sleeved on the rod body (1), the first screw hole (4) and the second screw hole (5) are connected with locking screws (10).

3. The needle bar of a split-type sewing machine according to claim 1, wherein the position of the positioning hole (6) corresponds to the position of the positioning insert (13) when the fixing sleeve block (2) is fitted over the rod body (1).

4. The needle bar of a split-type sewing machine according to claim 1, wherein the trepan boring (9) inside the fixed block (2) is a cylindrical bore, and the trepan boring (9) penetrates through the vertical surface of the fixed block (2), and the trepan boring (9) has a radius slightly larger than that of the rod body (1).

5. A split needle bar as claimed in claim 1, wherein the top screw (7) at the top of the bar (1) is sized to fit into the coupling screw (8) at the bottom of the top clamping member (3), and the threads on the top screw (7) intermesh with the threads on the interior of the coupling screw (8).