CN209508601U - A kind of sewing machine - Google Patents

Abstract

The utility model provides a kind of sewing machine, belongs to stitching process field.It solves the problems, such as to be easy after existing sewing machine Bird's Nest the end of a thread is cut off to fall normally to sew in sewing regional effect.This sewing machine includes workbench, head is provided on the workbench, the sewing workstation for cloth of sewing is provided on the head, the head front end is provided with Bird's Nest device, it is described that remove Bird's Nest device include tension disk, it is provided with blowing device on the head, the air outlet of the blowing device is towards the region between sewing workstation and tension disk.This sewing machine has makes Bird's Nest the end of a thread after cutting off far from sewing station using the wind-force of hair dryer, prevent the end of a thread from entering in normal stitching, it ensure that sewing quality, while being radiated using the wind-force of hair dryer to eedle, prevent eedle temperature excessively high the advantages that causing broken string.

Description

a sewing machine

technical field

The utility model belongs to the technical field of sewing, in particular to a sewing machine.

Background technique

At present, after the thread is trimmed on the sewing machine, there will be different degrees of bird's nest thread balls when sewing again. In order to solve this problem, the industry clamps the thread end by installing a thread clamping device on the machine head, and setting a blade on the presser foot. , At the beginning of the seam, the thread clamping device and the sewing material are pulled, so that the thread end is cut off on the edge of the presser foot to solve the problem of the bird's nest thread ball. However, this processing method does not take into account how to deal with the cut off thread ends, and the cut off thread ends tend to fall in the sewing area, affecting normal sewing.

The patent number is CN201510349411.6, which provides a sewing machine bird's nest removal device and using method, including a hook, a clamping plate, a machine needle and a presser foot plate located under the machine head. The draw hook is connected to the machine head through a rotating shaft, and the machine needle There are needle eyes for the suture to pass through, the presser foot plate is located on the needle plate, and the presser foot plate is provided with a slot corresponding to the needle, the slot extends along the direction of sewing material movement, and the bottom of the slot is provided with secant knife. This sewing machine removes the bird's nest device and its use method. It adopts the circular arc swing hook thread clamping device to clamp the end of the needle thread after thread trimming. When the next sewing starts, the timing of the clamping and loosening of the two thread clamps is used for the purpose. At the beginning of sewing, a sufficient and stable amount of thread is provided, so that the upper thread of the seam can be quickly tightened without a bobbin thread, and the clamped thread end is cut off near the needle hole of the sewing material, so as to solve the bird's nest that appears in the fabric during sewing The problem of thread ends, but this device does not solve the problem of how to deal with the cut thread ends. After the thread ends are cut off at a position close to the needle hole of the sewing material, it is easy to enter the normal sewing stitches and affect the sewing quality.

Utility model content

The utility model aims at the above-mentioned problems existing in the existing technology, and provides a bird's nest thread end processing device for a sewing machine. efficiency.

The purpose of this utility model can be achieved through the following technical solutions:

A sewing machine, the sewing machine includes a workbench, a machine head is arranged on the workbench, a sewing station for sewing cloth is arranged on the machine head, a bird's nest removing device is arranged at the front end of the machine head, and the bird's nest removing device The device includes a thread clamp, and is characterized in that: a blowing device is arranged on the machine head, and the air outlet of the blowing device faces the area between the sewing station and the thread clamp.

Its working principle is: after the sewing machine completes a sewing at the sewing station, use the bird’s nest removal device to remove the bird’s nest thread ends, and the cut thread ends are clamped by the thread clamp on the bird’s nest removal device. The thread will fall off from the thread device, and the thread end will be blown away from the sewing station by the wind of the blower device, so as to ensure that the next sewing stitch will not be entangled with the thread end, which completely solves the problem of the bird's nest thread end and ensures the sewing quality.

Further, the blowing device includes a blower, an air guide pipe, a delivery pipe, and a blower nozzle, the blower is fixed on the machine head, the blower is connected to the air guide pipe, the air guide pipe is connected to the delivery pipe, and the blower nozzle The inner end is inserted into the conveying pipe, and the outer end of the blowing nozzle faces the area between the sewing station and the thread gripper.

Further, the machine head includes a rear window, and the hair dryer is fixed on the rear window. The blower is fixed on the rear window panel without destroying the overall appearance design of the sewing machine, and does not interfere with sewing.

Further, the front end of the machine head is provided with a supporting piece, the blowing nozzle has a fixing piece, a connection hole 1 is opened on the support piece, a connecting hole 2 is opened on the fixing piece, and the connecting hole 1 and the The two connecting holes are connected by fasteners. The purpose of fixing the blowing nozzle at the front end of the machine head is to make the air outlet closer to the area between the sewing station and the thread tensioner, so as to improve the cleaning effect of thread ends.

Further, the cross-sectional area of the outer end of the blowing nozzle is smaller than the cross-sectional area of the inner end of the blowing nozzle. The cross-sectional area of the outer end of the blowing nozzle is smaller than the cross-sectional area of the inner end of the blowing nozzle in order to form a high-velocity continuous air duct to ensure efficient thread treatment efficiency.

Further, the machine head has an electric control unit, and the electric control unit is provided with a control module for controlling the start and stop of the blower. The purpose of setting the control module in the electric control unit is to synchronize the switch of the blower device with the sewing machine, so as to ensure efficient processing of thread ends.

Compared with the prior art, the utility model has the advantages of:

1. Use the wind force of the blower to keep the thread end of the bird's nest after cutting away from the sewing station, prevent the thread end from entering the normal stitches, and ensure the sewing quality;

2. While solving the thread ends of the bird's nest, use the wind force of the hair dryer to dissipate heat from the needle to prevent the needle from being broken due to excessive temperature.

Description of drawings:

Fig. 1 is a front view of the sewing machine;

Fig. 2 is a rear view of the sewing machine.

In the figure, 1. Working table; 2. Machine head; 3. Sewing station; 4. Bird’s nest removal device; 5. Thread gripper; 6. Blowing device; 7. Hair dryer; ; 10. Blowing nozzle; 11. Rear window panel; 12. Support piece; 13. Fixing piece; 14. Connection hole two;

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described.

As shown in Figures 1 to 2, the sewing machine includes a workbench 1, a head 2 is arranged on the workbench 1, a sewing station 3 for sewing cloth is arranged on the head 2, and a bird's nest removing device 4 is arranged at the front end of the head 2 , the bird's nest removal device 4 includes a thread gripper 5, and in the present embodiment, the bird's nest removal device and the thread gripper are all prior art, such as the patent No.

The CN201510349411.6 invention patent sewing machine removes the bird's nest device and the method of use disclosed in it.

As shown in Figures 1 to 2, the head 2 is provided with a blower 6, and the blower 6 includes a blower 7, an air duct 8, a delivery pipe 9, a blower nozzle 10, and the head 2 includes a rear window panel 11, and the blower 7 Fixed on the rear window panel 11, the blower 7 is connected to the air guide pipe 8, the air guide pipe 8 is connected to the conveying pipe 9, the inner end of the blowing nozzle 10 is inserted into the conveying pipe 9, and the outer end of the blowing nozzle 10 faces the sewing station 3 and the clip In the area between the thread clamps 5, the wind force of the blowing nozzle 10 acts between the sewing station 3 and the thread clamp 5 and between the sewing station 3 and the thread clamp 5 itself. The cross-sectional area of the outer end of the blowing nozzle 10 is smaller than the cross-sectional area of the inner end of the blowing nozzle 10 . In this embodiment, the front end of the machine head 2 is provided with a support member 12, the blowing nozzle 10 has a fixing member 13, the support member 12 is provided with a connecting hole 1, and the fixing member 13 is provided with a connecting hole 14, and the connecting hole 1 and The two connecting holes 14 are connected by fasteners. As another solution, for example, the blowing nozzle 10 can be plugged into the front end of the machine head 2, as long as the blowing nozzle can be fixed on the front end of the machine head, and the air outlet faces between the sewing station and the thread gripper, and the part that falls off from the thread gripper Just blow the thread ends away from the sewing station.

As shown in Figures 1 to 2, the head 2 is provided with an electric control unit 15, and the electric control unit 15 is provided with a control module for controlling the starting and closing of the blower 7. In this embodiment, the control module of the blower is directly designed in the electric control unit 15 that the sewing machine carries, which can save the assembly space and reduce the cost; In addition, the assembly space is occupied, and the production cost is relatively large.

The working principle of the utility model is: after the electric control unit is energized, the sewing machine starts, and at the same time, the blower device is started through the control module. After the sewing machine completes one sewing at the sewing station, the bird's nest thread end is removed by the bird's nest removal device, and the cut thread ends pass through the bird's nest removal device. When the next seam is started, the thread end will fall off from the thread gripper, and the blower will act on the wind force between the sewing station and the thread gripper through the air guide pipe, delivery pipe and blowing nozzle. The sewing station and the thread gripper itself keep the thread ends away from the sewing station, ensuring that the next sewing stitch will not be entangled with thread ends, which completely solves the problem of bird’s nest thread ends and ensures sewing quality.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although this article uses a lot of 1. Workbench; 2. Machine head; 3. Sewing station; 4. Bird’s nest removal device; 5. Thread clamp; 6. Blowing device; 7. Hair dryer; 9. Delivery pipe; 10. Blowing nozzle; 11. Rear window panel; 12. Support piece; 13. Fixing piece; 14. Connecting hole 2; 15. Terms such as electronic control unit, but the possibility of using other terms is not excluded . These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (6)

1. A sewing machine, said sewing machine comprising a workbench (1), said workbench (1) being provided with machine head (2), said machine head (2) being provided with a sewing station (3) for sewing cloth ), the front end of the head (2) is provided with a bird’s nest removal device (4), and the bird’s nest removal device (4) includes a thread gripper (5), and it is characterized in that: the head (2) is provided with a blower device (6), the air outlet of the blowing device (6) faces the area between the sewing station (3) and the thread gripper (5). 2. The sewing machine according to claim 1, characterized in that: the blower (6) comprises a blower (7), an air duct (8), a conveying pipe (9), a blowing nozzle (10), and the blower (7) be fixed on the head (2), the blower (7) is connected to the air guide pipe (8), the air guide pipe (8) is connected to the delivery pipe (9), and the inner end of the blowing nozzle (10) Inserted in the delivery pipe (9), the outer end of the blowing nozzle (10) faces the area between the sewing station (3) and the thread gripper (5). 3. The sewing machine according to claim 2, characterized in that: the machine head (2) includes a rear window (11), and the blower (7) is fixed on the rear window (11). 4. The sewing machine according to claim 2, characterized in that: the front end of the machine head (2) is provided with a support (12), the blowing nozzle (10) has a fixing member (13), and the support (12) is provided with a connecting hole one, and the fixing member (13) is provided with a connecting hole two (14), and the connecting hole one and the connecting hole two (14) are connected by fasteners. 5. The sewing machine according to claim 2, characterized in that: the cross-sectional area of the outer end of the blowing nozzle (10) is smaller than the cross-sectional area of the inner end of the blowing nozzle (10). 6. The sewing machine according to claim 1, characterized in that: the machine head (2) is provided with an electric control unit (15), and the electric control unit (15) is provided with a device for controlling the start-up of the blower (7) and Closed control module.