CN204491180U - A kind of Sewing machines - Google Patents

Abstract

A sewing machine, comprising a workbench, a body mounted on the workbench, a needle seat is arranged on the body, a needle is arranged on the needle seat, and a lock seam guide device is also installed on the work table; the lock seam guide device is composed of an integral structure The metal plate is twisted and wound, and the locking seam guide device has guide channel 1 for placing the reinforcing belt, guide channel 2 for folding one end of the sewing material, guide channel 3 for folding the second end of the sewing material, guide channel 2 and The guide passage three forms two mutually semi-enclosed passages. The use of the utility model greatly improves the labor efficiency, the strength quality is better guaranteed, and the appearance quality is smooth and firm. During the sewing process, the sewing material is flat and firm in the guide device, and the sewing material can be completely folded after being shaped, which is convenient for operation. Moreover, the utility model has the advantages of simple structure, convenient disassembly and maintenance, and interchangeability.

Description

a sewing machine

technical field

The utility model relates to the field of sewing machines.

Background technique

In the sewing and textile industry, the current general sewing machine structure is composed of a lead thread mechanism, a thread hook mechanism, a feeding mechanism, a thread take-up mechanism, and a winding mechanism. Lock stitching is generally to lock the edge of the fabric with a thread to prevent it from falling off. The operator needs to manually fold the sewing material to a certain width and push it forward to complete the sewing. However, when the sewing material has a special coating or is soft, this kind of locking seam processing is time-consuming and difficult to feed. The length of the seam is generally 20-50m, and the radiation reinforcement belt needs to be sewn, which is labor-intensive. The main sewing materials of parachutes and hot air balloons have special coating materials, and their processing quality requirements are higher than those of ordinary textiles. If the operator continues to push manually, there are several situations that are likely to occur:

1) During the sewing process, there are defects such as virtual edges and missing edges that seriously affect product quality.

2) The operator curls unevenly, so that the product strength cannot meet the requirements for use.

3) It is difficult for the operator to feed the material during the operation, the labor intensity is high, and the time-consuming affects the labor efficiency.

4) Affect the appearance quality of the product.

Contents of the invention

The purpose of the invention of this utility model is to solve the above-mentioned deficiencies in the sewing technology, and provide a sewing machine with a high-efficiency lock seam guide device, which can realize the sewing material lock seam width is flat and firm, neat and beautiful, and the sewing speed is fast during the sewing process. It is simple and can effectively improve the production efficiency of lockstitch products while ensuring product quality.

The technical scheme of the utility model is: comprising a workbench, a fuselage mounted on the workbench, a needle holder is installed on the fuselage, a needle is arranged on the needle holder, and a lock seam guide device is also installed on the workbench; the lock seam guide The device is made of a metal plate with an integral structure. The locking seam guide device has a guiding channel for placing the reinforcing belt, a guiding channel for folding one end of the sewing material, a guiding channel for folding the second end of the sewing material, and a guiding channel for folding the second end of the sewing material. The second guide channel and the third guide channel form two mutually semi-enclosed channels.

The first guide channel is strip-shaped, and the cross-sections of the second guide channel and the third guide channel are U-shaped.

The side wall of the second U-shaped guide channel is inserted into the opening of the third U-shaped guide channel.

One of the guide passages is connected to two ends of the guide passage, or one of the guide passages is connected to three ends of the guide passage.

The first guide channel, the second guide channel, and the third guide channel are wedge-shaped, with one end wide and the other end narrow.

Double needles are installed on the needle seat.

The high-efficiency lock seam guide device is set on the feeding mechanism on the sewing machine. The high-efficiency lock seam guide device is aligned with the center line and fixed in the threaded hole of the workbench with sewing machine screws. It is formed by bending a metal plate with a certain thickness. The upper end of the lock seam guide device is relatively The lower end should be small, and the upper end size is fixed and determined according to the width of lock seam. Place the two pieces of fabric to be lockstitched into the unit, making sure the edges of the material are aligned with the inside walls of the unit. When people are sewing two pieces of sewing materials, lift the presser foot, adjust the line width to press the sewing materials tightly, and the sewing materials are drawn by the guide groove of the device to automatically form the lock seam width to be achieved. Tie the upper and lower threads into a loop to sew the material together. The lockstitch guide device can be used in various types of double-needle machines such as GC9420 double-needle machine, LH-3128 double-needle machine, LH-3528A double-needle machine, etc.

The utility model relates to a high-efficiency sewing machine for locking seams, in particular to a sewing machine for long-time locking sewing processing of aviation products such as parachutes and hot air balloons with special coating materials as the main sewing materials. During the sewing process, the sewing material is flat and firm in the guide device, and the sewing material can be completely folded after being shaped, which is convenient for operation. Moreover, the utility model has the advantages of simple structure, convenient disassembly and maintenance, and interchangeability. The use of the utility model greatly improves the labor efficiency, the strength quality is better guaranteed, and the appearance quality is smooth and firm.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the locking seam guiding device.

FIG. 3 is a top view of FIG. 2 .

Fig. 4 is a view of the use state of the overlock seam guide device.

Detailed ways

In Fig. 1, the utility model comprises a workbench 1, a body 2 mounted on the workbench, a needle holder 3 is installed on the body 2, a double needle 4 is housed on the needle holder 3, and a high-efficiency locking seam guide device 5 is fixed on the workbench 1, the device is interchangeable.

In Figures 2 and 3, the lock seam guide device 5 is formed by meandering metal plates with an integral structure, and the lock seam guide device 5 has a guide channel for placing the reinforcing belt 8, and a guide channel for folding the end of the sewing material 1 6 1. The guide channel three used for folding the ends of the sewing material two and 7, the guide channel two and the guide channel three form two mutually semi-enclosed channels.

In Fig. 4, two pieces of sewing materials that need locking seam are sent into the sewing material one 6, sewing material two 7 and reinforcing belt 8 respectively in the locking seam guiding device 5 through the guide groove.

When working, the sewing material automatically forms a certain width in the lock seam guide device 5, and adjusts the width of the double needle 4 arranged on the needle seat 3 on the sewing machine body 2 according to the lock seam requirements to reach the corresponding lock seam width. During the process, the sewing material is drawn through the guide groove (three guide channels) to form a corresponding width and automatically pushes the sewing material forward, thereby completing the sewing of the fabric.

Claims (6)

1. a Sewing machines, is characterized in that: comprise workbench, the fuselage be loaded on workbench, fuselage is equipped with needle stand, needle stand is equipped with pin, workbench is also equipped with eyelet guider; Described eyelet guider is coiled into by the metallic plate of integrative-structure is roundabout, eyelet guider has the guide channel one for placing reinforcing band, for the guide channel two in folding sewing one end portion, the guide channel three for folding sewing two end, guide channel two and guide channel three form the passage of two mutual semi-surroundings.

2. Sewing machines according to claim 1, is characterized in that: described guide channel one is strip shape, and the cross section of guide channel two, guide channel three is U-shaped.

3. Sewing machines according to claim 2, is characterized in that: a sidewall of described U-shaped guide channel two is plugged in the opening of U-shaped guide channel three.

4. Sewing machines according to claim 1, is characterized in that: described guide channel one is connected in guide channel two end, or guide channel one is connected in guide channel three end.

5. Sewing machines according to claim 1, is characterized in that: described guide channel one, guide channel two, guide channel three are in wedge shape, and one end is wide, the other end is narrow.

6. Sewing machines according to claim 1, is characterized in that: described needle stand is equipped with crosspointer.