Anti-interference multi-light-eye correlation structure and sewing machine thereof

Abstract

The utility model belongs to the technical field of sewing machine technologies, and relates to an anti-interference type multi-light-eye correlation structure and a sewing machine thereof, a thread trimming switch assembly is arranged on a machine head of the sewing machine, and a thread trimmer assembly is arranged in a machine shell. A plurality of light eyes electrically connected with an electric control module of the sewing machine are sequentially arranged in the cloth feeding direction of the sewing machine, and emitters and inductors of the light eyes are arranged on the machine shell and the thread trimming switch assembly respectively to form an up-down correlation structure. Wherein the inductor of at least one light eye is arranged on the thread trimming switch assembly, and the inductor of the adjacent light eye is arranged on the machine shell. According to the anti-interference type multi-light-eye correlation structure and the sewing machine with the anti-interference type multi-light-eye correlation structure, the effects of accurate control and short thread ends can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sewing machine technology and relates to an anti-interference multi-light-eye opposite radiation structure and sewing machine thereof. BACKGROUND

[0002] In the field of textile and garment processing, the performance of computer bag sewing machine is related to production efficiency and product quality. The existing equipment has two major problems: the light eye layout is unreasonable, when the distance between adjacent light eyes is too close, the mutual interference is serious, which makes it difficult to adjust the value of each light eye, the signal is chaotic, affects the accurate monitoring and control of key parameters by the machine, and reduces the stability of the equipment. In addition, the thread after cutting on the conventional overlock machine is too long, which affects the appearance of the product and may cause problems such as loosening and winding in subsequent processing or use, so additional manual cutting is required, which increases the cost and reduces the efficiency.

[0003] Chinese utility model patent CN214032931U (publication date: August 24, 2021) discloses a sensing device of a sewing machine, the sewing machine comprises a sewing table, a needle plate is arranged on the sewing table, differential teeth and feed teeth are distributed on the needle plate, characterized in that the sensing device comprises a first sensor, a second sensor and a third sensor which are sequentially distributed on the sewing table along the feeding direction of the sewing machine, the first sensor is located in front of the differential teeth, the second sensor is located behind the differential teeth, and the third sensor is located behind the feed teeth, the sensing device further comprises a transmitter and a controller corresponding to the first sensor, the second sensor and the third sensor, the first sensor, the second sensor and the third sensor can cooperate with the transmitter to detect whether the front edge or the rear edge of the fabric passes, and the controller is connected with the first sensor, the second sensor and the third sensor.

[0004] The sensing device of the above-mentioned sewing machine mainly controls the thread cutting through the second sensor, but the second sensor is still quite far from the thread cutting knife assembly, and the thread after cutting will be too long, so a complex algorithm is needed to assist in controlling the thread cutting. If the number of light eyes is further increased, mutual interference will occur, which will also affect the accurate monitoring and control of key parameters by the machine, and reduce the stability of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of anti-interference multi-light-eye opposite radiation structure and sewing machine thereof according to the deficiency of prior art, can realize accurate control and short thread effect.

[0006] To solve the above technical problems, the purpose of the utility model is realized by the following technical scheme:

[0007] The anti-interference type multi-light eye opposite radiation structure is characterized in that: a thread trimming switch assembly is arranged on the machine head of the sewing machine, a thread trimming cutter assembly is arranged in the machine base, a plurality of light eyes electrically connected with the electric control module of the sewing machine are sequentially arranged along the feeding direction of the sewing machine, the transmitter and the inductor of the light eye are arranged on the machine base and the thread trimming switch assembly respectively and form an up-down opposite radiation structure.

[0008] Among them, the inductor of at least one light eye is arranged on the thread trimming switch assembly, and the inductor of the adjacent light eye is arranged on the machine base.

[0009] In the anti-interference type multi-light eye opposite radiation structure, the first inductor, the second inductor, the third transmitter and the fourth inductor are sequentially arranged on the machine base; the first transmitter, the second transmitter, the third inductor and the fourth transmitter are sequentially arranged on the thread trimming switch assembly; the first inductor and the first transmitter form a first light eye, the second inductor and the second transmitter form a second light eye, the third inductor and the third transmitter form a third light eye, and the fourth inductor and the fourth transmitter form a fourth light eye; the first light eye detects the cloth, and the second light eye, the third light eye and the fourth light eye control the thread trimming.

[0010] In the anti-interference type multi-light eye opposite radiation structure, the first inductor, the second inductor, the third transmitter and the fourth inductor are located at the same transverse position, and the first transmitter, the second transmitter, the third inductor and the fourth transmitter are located at the same transverse position; the same transverse position means that the center thereof is located on the same transverse straight line; further, the machine base and / or the thread trimming switch assembly is provided with a mounting seat for mounting the light eye.

[0011] In the anti-interference type multi-light eye opposite radiation structure, the first inductor and the second inductor are fixed on the sewing table of the machine base, the third transmitter is fixed on the sewing table, the needle plate or the needle plate cushion block of the machine base, and the fourth inductor is fixed on the thread trimming cutter assembly.

[0012] In the anti-interference type multi-light eye opposite radiation structure, the first inductor is arranged on the front side of the rear edge of the needle plate, and the fourth inductor is arranged on the front side of the front edge of the needle plate.

[0013] In the anti-interference type multi-light eye opposite radiation structure, the transmitter is a transmitting lamp bead, the light emitted by the transmitting lamp beads of different transmitters has different wavelengths, and the wavelength range of the light sensed by the inductor is consistent with that of the corresponding transmitter.

[0014] The utility model also provides a sewing machine, the sewing machine is provided with the anti-interference type multi-light eye opposite radiation structure.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides an anti -interference type multi -light eye pair of shot structure, improved the installation structure of original light eye, part light eye inductor's installation position is removed from the seam table to the line cutting switch subassembly, simultaneously its corresponding transmitter is installed to the seam table, forms the light eye layout of up and down interlaced, avoided the interference between adjacent light eye because of inductor distance too close produces, can therefore more light eye is laid out, especially more close light eye of line cutting knife subassembly realizes accurate control and short line head effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure legend: 1, head; 2, line cutting switch subassembly; 3, machine base; 4, line cutting knife subassembly; 5, seam table; 6, needle plate; 11, first inductor; 12, second inductor; 13, third inductor; 14, fourth inductor; 21, first transmitter; 22, second transmitter; 23, third transmitter; 24, fourth transmitter. DETAILED DESCRIPTION

[0019] The utility model will be further described in conjunction with the specific embodiment of the drawings, referring to Figure 1 :

[0020] An anti -interference type multi -light eye pair of shot structure, the head 1 of sewing machine is provided with line cutting switch subassembly 2, is provided with line cutting knife subassembly 4 in machine base 3, is sequentially provided with a plurality of light eye with the electric control module electric connection of sewing machine along the cloth feeding direction of sewing machine, the transmitter and inductor of light eye are arranged in machine base 3 and line cutting switch subassembly 2 respectively and form up and down pair of shot structure;Wherein, at least one inductor of light eye is arranged on line cutting switch subassembly 2, and the inductor of adjacent light eye is arranged on machine base 3.In this embodiment, specifically, first inductor 11, second inductor 12, third transmitter 23 and fourth inductor 14 are sequentially arranged on machine base 3;First transmitter 21, second transmitter 22, third inductor 13 and fourth transmitter 24 are sequentially arranged on line cutting switch subassembly 2;First inductor 11 and first transmitter 21 form first light eye, second inductor 12 and second transmitter 22 form second light eye, third inductor 13 and third transmitter 23 form third light eye, fourth inductor 14 and fourth transmitter 24 form fourth light eye;The first light eye detects cloth, and second light eye, third light eye and fourth light eye control line cutting.

[0021] The specific working mode of the embodiment is: when the sewing machine is working, the sewing material passes through the first sensor 11, the second sensor 12, the third sensor 13 and the fourth sensor 14 in turn, and the first sensor 11, the second sensor 12, the third sensor 13 and the fourth sensor 14 are connected with the electric control module in the sewing machine; the electric control module judges whether the front edge or the rear edge of the sewing material passes according to the signals of the first sensor 11, the second sensor 12, the third sensor 13 and the fourth sensor 14, and then performs a series of automatic control. When the signal of the first sensor 11 changes from yes to no, the electric control module judges that the front edge of the sewing material passes through the first sensor 11, and the electric control module controls the functions such as automatic lifting of the presser foot and automatic starting of sewing according to the signal of the first sensor 11. In the same way, the electric control module controls the automatic thread cutting according to the signals of the second sensor 12, the third sensor 13 and the fourth sensor 14, and since the second sensor 12, the third sensor 13 and the fourth sensor 14 are staggered up and down, the signals between them will not interfere with each other, and in particular, since the third sensor 13 is closer to the thread cutting knife assembly 4 in the sewing machine, the thread cutting effect of short thread ends can be achieved.

[0022] In a preferred layout of the embodiment, the first sensor 11, the second sensor 12, the third sensor 13 and the fourth sensor 14 are located at the same transverse position, and the first sensor 21, the second sensor 22, the third sensor 13 and the fourth sensor 24 are located at the same transverse position; the same transverse position means that the centers thereof are located on the same transverse straight line; further, in order to facilitate the installation of the light eye, the machine base 3 and / or the thread cutting switch assembly 2 are provided with mounting seats for installing the light eye.

[0023] In a preferred layout of the embodiment, the first sensor 11, the second sensor 12 and the third sensor 13 are fixed on the sewing table 5 of the machine base 3, and the fourth sensor 14 is fixed on the thread cutting knife assembly 4.

[0024] In order to completely detect the passing state of the sewing material, the first sensor 11 is arranged on the front side of the rear edge of the needle plate 6, and the fourth sensor 14 is arranged on the front side of the front edge of the needle plate 6.

[0025] In order to further reduce the interference between adjacent sensors, the emitter is an emitting lamp bead, the light emitted by the emitting lamp beads of different emitters has different wavelengths, and the wavelength range of the light sensed by the sensor is consistent with that of the corresponding emitter.

[0026] The above embodiment is only a preferred embodiment of the present application, and does not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An anti-interference multi-light eye shooting structure, comprising a sewing machine, a thread trimming switch assembly (2) is arranged on the head (1) of the sewing machine, and a thread trimming knife assembly (4) is arranged in the machine base (3), characterized in that, A plurality of light eyes are arranged in the feeding direction of the sewing machine and are electrically connected with the electric control module of the sewing machine, the transmitter and the inductor of the light eyes are arranged on the machine base (3) and the thread trimming switch assembly (2) respectively and form an up-down transmission structure. The inductor of at least one light eye is arranged on the thread trimming switch assembly (2), and the inductor of the adjacent light eye is arranged on the machine base (3).

2. The anti-interference type multi-light eye opposition shooting structure according to claim 1, characterized in that, The first inductor (11), the second inductor (12), the third transmitter (23) and the fourth inductor (14) are arranged in sequence on the machine base (3); the first transmitter (21), the second transmitter (22), the third inductor (13) and the fourth transmitter (24) are arranged in sequence on the thread trimming switch assembly (2); the first inductor (11) and the first transmitter (21) form the first light eye, the second inductor (12) and the second transmitter (22) form the second light eye, the third inductor (13) and the third transmitter (23) form the third light eye, and the fourth inductor (14) and the fourth transmitter (24) form the fourth light eye; the first light eye detects the cloth, and the second light eye, the third light eye and the fourth light eye control the thread trimming.

3. The anti-interference type multi-light eye pair structure according to claim 2, characterized in that, The first inductor (11), the second inductor (12), the third transmitter (23) and the fourth inductor (14) are located at the same transverse position, and the first transmitter (21), the second transmitter (22), the third inductor (13) and the fourth transmitter (24) are located at the same transverse position.

4. The anti-interference type multi-light eye pair structure according to claim 2, characterized in that, The first inductor (11) and the second inductor (12) are fixed on the sewing table (5) of the machine base (3), the third transmitter (23) is fixed on the sewing table (5), the needle plate (6) or the needle plate cushion block of the machine base (3), and the fourth inductor (14) is fixed on the thread trimming knife assembly (4).

5. The anti-interference type multi-light eye pair structure according to claim 4, characterized in that, The first inductor (11) is arranged on the front side of the rear edge of the needle plate (6), and the fourth inductor (14) is arranged on the front side of the front edge of the needle plate (6).

6. The anti-interference type multi-light eye pair structure according to claim 1, characterized in that, The transmitter is a transmitting lamp bead, the light emitted by the transmitting lamp beads of different transmitters has different wavelengths, and the wavelength range of the light sensed by the inductor is consistent with that of the corresponding transmitter.

7. A sewing machine characterized by comprising: The sewing machine is provided with the anti-interference type multi-light eye transmission structure of any one of claims 1 to 6.

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