System circuit of automatic sewing machine for business suit sleeves

Abstract

The utility model discloses a system circuit of an automatic sewing machine for business suit sleeves. The system circuit comprises a power loop and a control circuit, the power loop comprises three-phase live wires L1, L2 and L3, and the three-phase live wires are connected with a main switch QF; the contactors KM1, KM2 and KM3 which are mutually connected in parallel are respectively connected with motors M1, M2 and M3; thermal relays FR1, FR2 and FR3 are respectively connected in series in main loops of the motors M1, M2 and M3; the control circuit comprises a control switch SB1, a sewing machine needle sewing sleeve circuit, a sewing machine bottom roller conveying sleeve circuit, a conveyor belt conveying circuit and a timing restart circuit; the motor M1 is used for driving the needle bar or the sewing machine head to perform sewing work; the motor M2 is used for driving the conveyor belt to transfer the sewed sleeves to the next station; the motor M3 is used for driving the bottom rollers to move the sleeves backwards in the sewing process. The circuit design can be simplified, the system integration degree is improved, and the equipment reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing, in particular to a system circuit of an automatic sewing machine for suit sleeves. Background Art

[0002] The production of suit sleeves is an important process in garment processing, and its sewing quality directly affects the overall quality and wearing comfort of the suit. Although the existing suit sleeve sewing technology has been developed for many years, it still has obvious shortcomings in production efficiency and automation.

[0003] The existing process of sewing suit sleeves is as follows: firstly, the sleeve fabric is cut into a desired shape according to a paper pattern, and then the fabric is folded; and the open edges of the fabric are sewn to obtain a semi-finished sleeve.

[0004] In the traditional manual sewing method, the operator needs to control the direction of the fabric, adjust the sewing speed, maintain uniform thread tension, etc. Although this method can ensure a certain processing quality, it has obvious limitations: first, the production efficiency is low, and it often takes a long time to sew a suit sleeve; the product quality depends on the personal skills of the workers, and it is difficult to ensure the consistency of mass production; in addition, the training cycle of skilled workers is long and the labor cost is high.

[0005] In order to improve production efficiency, some companies try to use automatic sewing equipment. However, existing automatic sewing machine systems have problems such as complex equipment structure and large circuit system. These devices usually need to be equipped with multiple servo motors, complex sensor systems and precise control circuits, which not only increases equipment costs, but also increases maintenance difficulty.

[0006] Especially in terms of circuit design, existing automatic sewing machine systems often use complex multi-layer control systems, including multiple subsystems such as motion control modules, tension adjustment modules, positioning systems, etc. These circuit systems are not only expensive to manufacture, but also prone to failure, increasing the operating costs of enterprises.

[0007] Therefore, it is of great significance to develop a system circuit for automatic sewing machines for suit sleeves with simple structure and reasonable circuit design. Utility Model Content

[0008] The purpose of the utility model is to provide a system circuit of an automatic suit sleeve sewing machine, which can simplify circuit design, improve system integration, enhance equipment reliability, and reduce maintenance costs.

[0009] The above technical objectives of the utility model are achieved through the following technical solutions:

[0010] A system circuit of an automatic suit sleeve sewing machine comprises: a power circuit and a control circuit; the power circuit comprises: three-phase live wires L1, L2 and L3, the three-phase live wires are connected to a main switch QF; contactors KM1, KM2 and KM3 are connected in parallel, and motors M1, M2 and M3 are connected respectively; thermal relays FR1, FR2 and FR3 are connected in series in the main circuits of motors M1, M2 and M3 respectively; the control circuit comprises a control switch SB1 and a sewing machine needle sleeve sewing circuit, a sewing machine bottom roller sleeve conveying circuit, a conveyor belt conveying circuit and a timed restart circuit; the motor M1 is used to drive a needle bar or a sewing machine head to do sewing; the motor M2 is used to drive a conveyor belt to transfer the sewn sleeves to the next station; the motor M3 is used to drive the bottom roller to move the sleeves backwards during the sewing process.

[0011] The utility model is further configured as follows: the sewing machine needle sleeve circuit includes: a thermal contactor FR1; the thermal contactor FR1 is connected to a normally closed switch KT3; the normally closed switch KT3 is connected to a normally closed switch KT1; the normally closed switch KT1 is connected in series with a relay KM1; the normally closed switch KT1 is connected in parallel with a power-on delay time relay KT1.

[0012] The utility model is further configured as follows: the sleeve conveying circuit of the bottom roller of the sewing machine comprises: a thermal contactor FR3; the thermal contactor FR3 is connected with a normally closed switch KT1; the normally closed switch KT1 is connected with a relay KM3.

[0013] The utility model is further configured as follows: the conveyor belt conveying circuit includes: a thermal contactor FR2; the thermal contactor FR2 is connected to a normally open switch KT1; the normally open switch KT1 is connected to a normally closed switch KT3; the normally closed switch KT3 is connected to a normally closed switch KT2; the normally closed switch KT2 is connected in series with a relay KM2; the normally closed switch KT2 is connected in parallel with a power-on delay time relay KT2.

[0014] The utility model is further configured as follows: the timing restart circuit comprises: a normally open switch KT2; the normally open switch KT2 is connected to a normally open switch KT1; the normally open switch KT1 is connected to a power-on delay time relay KT3.

[0015] In summary, the utility model has the following beneficial effects:

[0016] The system circuit of the automatic sewing machine for suit sleeves realizes intelligent control of the sewing process through circuit design. The system adopts the collaborative working mode of three motors. Motor M1 controls needle bar sewing, motor M2 controls conveyor belt operation, and motor M3 controls bottom roller conveying. Through the cooperation of four functional circuits (sewing machine needle sewing, bottom roller conveying, conveyor belt conveying and timed restart circuit), automatic assembly line operation is realized. The control circuit ensures the precise connection and timing control of sewing, conveying and other processes through the linkage of multiple groups of time relays and normally open and normally closed switches. The timed restart circuit enables the equipment to automatically pause and restart after completing a working cycle to achieve continuous batch production. At the same time, the system is equipped with a complete protection mechanism, including main switch control and thermal relay overload protection, which ensures the safe and stable operation of the equipment. The system circuit of the automatic sewing machine for suit sleeves simplifies the circuit structure, improves the system reliability, and also realizes the standardization and continuous production of suit sleeve processing, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A circuit diagram of an embodiment.

[0018] Figure numerals: 1. sewing machine needle sewing sleeve circuit; 2. sewing machine bottom roller conveying sleeve circuit; 3. conveyor belt conveying circuit; 4. timed restart circuit. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0021] In the description of the present utility model, "multiple" means two or more than two, unless otherwise clearly specified and specifically defined. In the present utility model, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1 As shown, a system circuit of an automatic suit sleeve sewing machine includes a power circuit and a control circuit.

[0024] The power circuit includes three-phase live wires L1, L2, and L3, and the three-phase live wires L1, L2, and L3 are connected to a main switch QF. The main switch QF enters the system to control the closing or opening of the entire circuit.

[0025] The power circuit also includes contactors KM1, KM2, and KM3 connected in parallel with each other and corresponding motors M1, M2, and M3; thermal relays FR1, FR2, and FR3 are respectively connected in series in the main circuits of motors M1, M2, and M3. Once one or more of motors M1, M2, and M3 are overloaded or stalled, the thermal relays will operate to cut off the control circuit to protect the motors from damage.

[0026] The control circuit includes a control switch SB1. When the control switch SB1 is operated, the control circuit is powered on. In addition, the control circuit also includes a sleeve sewing circuit 1 for sewing machine needles, a sleeve conveying circuit 2 for the bottom roller of the sewing machine, a conveyor belt conveying circuit 3, and a timed restart circuit 4.

[0027] 1. Sewing machine needle sleeve circuit 1

[0028] The sewing machine needle-sewing sleeve circuit 1 includes a thermal contactor FR1, which is disconnected when the circuit is overloaded, thereby protecting the circuit. The thermal contactor FR1 is connected to a normally closed switch KT3. The normally closed switch KT3 is connected to a normally closed switch KT1. The normally closed switch KT1 is connected in series with a relay KM1. When the relay KM1 is closed, the contactor KM1 is controlled to close, so that the motor M1 is started. The normally closed switch KT1 is connected in parallel with a power-on delay time relay KT1. When the control switch SB1 is closed, the time relay KT1 starts timing, and at the same time, the relay KM1 works, so that the circuit of the motor M1 is energized, and the motor M1 works. At this time, the motor M1 drives the needle bar or the sewing machine head to do sewing work. When the contactor KM1 is closed, it is a needle sewing action, so that the needle sewing stage can complete the sewing of the specified length within the set time.

[0029] 2. Sewing machine bottom roller conveying sleeve circuit 2

[0030] The bottom roller is connected to the motor M2 and is used to move the sewn sleeve backwards while the sewing needle is sewing.

[0031] The sleeve conveying circuit 2 of the bottom roller of the sewing machine includes a thermal contactor FR3. The thermal contactor FR3 is used to protect the circuit. The thermal contactor FR3 is connected to a normally closed switch KT1. The normally closed switch KT1 is connected to a relay KM3. When the control switch SB1 is closed, the circuit is energized and the relay KM3 works. At this time, the motor M1 and the motor M3 work at the same time, so that the sleeves are moved backwards at the same time during the sewing process.

[0032] 3. Conveyor belt conveyor circuit 3

[0033] The conveyor belt is installed at the bottom or side of the sewing machine to transfer the sewn sleeves to the next workstation in the entire production line.

[0034] The transmission belt conveying circuit includes a thermal contactor FR2. The thermal contactor FR2 is used to protect the circuit. The thermal contactor FR2 is connected to a normally open switch KT1. The normally open switch KT1 is connected to a normally closed switch KT3. The normally closed switch KT3 is connected to a normally closed switch KT2. The normally closed switch KT2 is connected in series with a relay KM2. At the same time, the normally closed switch KT2 is connected in parallel with a power-on delay time relay KT2.

[0035] As mentioned above, when the timing of the time relay KT1 ends, the sewing work and the work of moving the sleeve backwards have been completed, and each normally closed switch KT1 is disconnected, so that the motor M1 and the motor M3 are both stopped, and the normally open switch KT1 is closed, so that the conveyor belt conveying circuit 3 is energized, the relay KM2 works, the contactor KM2 is closed, and the motor M2 works. At the same time, the time relay KT2 starts timing. Under the action of the motor M2, the conveyor belt moves the sewn sleeve to the next station.

[0036] 4. Timing restart circuit 4

[0037] In order to achieve intermittent sewing or multi-batch operation, this application can configure a timed restart function in the control loop so that the equipment automatically pauses after completing a working cycle, and then restarts after a delay of several seconds or tens of seconds to achieve continuous batch operation.

[0038] The timed restart circuit 4 includes a normally open switch KT2. The normally open switch KT2 is connected to a normally open switch KT1. The normally open switch KT1 is connected to a power-on delay time relay KT3. When the time relay KT1 and the time relay KT2 both finish timing, the timed restart circuit 4 is powered on, and the time relay KT3 starts timing. When the timing ends, each normally closed switch KT3 is disconnected, and the time relay KT1 and the time relay KT2 lose power, causing the normally open switch KT1 and the normally open switch KT2 in the timed restart circuit 4 to be disconnected again, the time relay KT3 loses power, and the normally closed switch KT3 is closed again, so that the circuit is restarted and the cyclic sewing work is restarted.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A system circuit of an automatic sewing machine for suit sleeves, characterized in that: include: Power circuit and control circuit; The power circuit comprises: Three-phase live wires L1, L2, L3, the three-phase live wires are connected to a main switch QF; contactors KM1, KM2, KM3 are connected in parallel to motors M1, M2, M3 respectively; thermal relays FR1, FR2, FR3 are connected in series in the main circuits of the motors M1, M2, M3 respectively; the control circuit includes a control switch SB1 and a sewing machine needle sleeve circuit, a sewing machine bottom roller sleeve conveying circuit, a conveyor belt conveying circuit and a timed restart circuit; The motor M1 is used to drive the needle bar or the sewing machine head to do sewing work; The motor M2 is used to drive the conveyor belt to move the sewn sleeves to the next station; The motor M3 is used to drive the bottom roller to move the sleeve backwards during sewing.

2. The system circuit of the automatic suit sleeve sewing machine according to claim 1 is characterized in that: The sewing machine sleeve sewing circuit includes: a thermal contactor FR1; the thermal contactor FR1 is connected to a normally closed switch KT3; the normally closed switch KT3 is connected to a normally closed switch KT1; the normally closed switch KT1 is connected in series with a relay KM1; the normally closed switch KT1 is connected in parallel with a power-on delay time relay KT1.

3. The system circuit of the automatic suit sleeve sewing machine according to claim 1 is characterized in that: The sleeve conveying circuit of the bottom roller of the sewing machine includes: a thermal contactor FR3; the thermal contactor FR3 is connected to a normally closed switch KT1; the normally closed switch KT1 is connected to a relay KM3.

4. The system circuit of the automatic suit sleeve sewing machine according to claim 1 is characterized in that: The conveyor belt conveying circuit includes: a thermal contactor FR2; the thermal contactor FR2 is connected to a normally open switch KT1; the normally open switch KT1 is connected to a normally closed switch KT3; the normally closed switch KT3 is connected to a normally closed switch KT2; the normally closed switch KT2 is connected in series with a relay KM2; the normally closed switch KT2 is connected in parallel with a power-on delay time relay KT2.

5. The system circuit of the automatic suit sleeve sewing machine according to claim 1 is characterized in that: The timed restart circuit includes: a normally open switch KT2; the normally open switch KT2 is connected to a normally open switch KT1; the normally open switch KT1 is connected to a power-on delay time relay KT3.

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