A fully automatic sewing machine

Abstract

The present invention discloses a fully automatic sewing machine, which includes a machine body, a thread-binding structure and a transmission structure connected to the thread-binding structure, the transmission structure including a balance block, an eccentric wheel, a first connecting rod, a first pendulum block, a shaft rod, a second connecting rod and a second pendulum block, the balance block is fixed to the side of the machine body and has a hollow portion, the eccentric wheel is arranged in the hollow portion of the balance block and can rotate in the hollow portion, one end of the first connecting rod is connected to the eccentric wheel, and the other end is connected to the side of the first pendulum block, one end of the first pendulum block is provided with an axial hole, the shaft rod is vertically fixed to the side of the machine body, the first pendulum block is sleeved on the shaft rod through the axial hole and rotates with the shaft rod as the axis. The fully automatic sewing machine of the present invention uses a new transmission structure, which can solve the problem of difficulty in adjusting the eccentricity, so that the machine threading is tighter, the noise is smaller and more stable, and the performance of the product is greatly improved.

Description

[Technical field]

[0001] The invention relates to the technical field of automatic sewing, and in particular to a fully automatic sewing machine.

Technical Background

[0002] In response to the problems of poor flexibility, poor stability and single function of traditional mechanical quilting machines, a computer-controlled fully automatic quilting machine has appeared on the market. It has improved in many aspects such as production speed, mechanical performance and stability. However, it still has shortcomings such as insufficient thread tightness, loud noise and difficult adjustment of the eccentricity of the transmission structure, so further optimization is needed.

[0003] In order to overcome the above problems, we have developed a fully automatic sewing machine. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide a fully automatic sewing machine with tight threading, low noise and convenient adjustment of the eccentricity of the transmission structure.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a fully automatic sewing machine, which includes a machine body, on which a thread-binding structure and a transmission structure connected to the thread-binding structure are arranged, characterized in that: the transmission structure includes a balancing block, an eccentric wheel, a first connecting rod, a first pendulum block, a shaft rod, a second connecting rod and a second pendulum block, the balancing block is fixed to the side of the machine body and has a hollow portion, the eccentric wheel is arranged in the hollow portion of the balancing block and can rotate in the hollow portion, one end of the first connecting rod is connected to the eccentric wheel, and the other end is connected to the side of the first pendulum block, one end of the first pendulum block is provided with an axial hole, the shaft rod is vertically fixed on the side of the machine body, the first pendulum block is sleeved on the shaft rod through the axial hole and rotates with the shaft rod as the axis, the other end of the first pendulum block is connected to the second pendulum block through the second connecting rod, and the other end of the second pendulum block is connected to the thread-binding shaft of the thread-binding structure.

[0006] In one or more implementation cases, the eccentric wheel and the first connecting rod are connected together by a joint screw, the joint screw is embedded in one end of the eccentric wheel and a corresponding screw hole is provided on the side of the eccentric wheel, and an adjustment screw for adjusting the eccentricity of the joint screw is provided at the screw hole.

[0007] In one or more implementation cases, there are three screw holes arranged on the side of the eccentric wheel.

[0008] In one or more implementation cases, the balancing block is provided with a screw hole for matching with a screw to lock the eccentric wheel in rotation.

[0009] The beneficial effects of the present invention compared with the background technology are as follows:

[0010] By adopting the above technical solution, the fully automatic sewing machine of the present invention uses a new transmission structure, which can solve the problem of difficulty in adjusting the eccentricity, making the machine thread tighter, less noisy and more stable, and the performance of the product is greatly improved.

Brief Description of the Drawings

[0011] Figure 1 A structural diagram of a fully automatic sewing machine in one or more embodiments of the present invention;

[0012] Figure 2 A structural diagram of a transmission structure in one or more embodiments of the present invention;

[0013] Figure 3 A diagram showing the connection structure of the eccentric wheel, the first connecting rod and the first pendulum block in one or more embodiments of the present invention;

[0014] Figure 4 It is a cross-sectional view of the connection between the eccentric wheel, the first connecting rod and the first pendulum block in one or more embodiments of the present invention. [Specific implementation method]

[0015] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0016] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating 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 cannot be understood as limiting the specific scope of protection of the present invention.

[0017] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "at least" means one or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the invention, unless otherwise specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “below”, and “above” a second feature includes that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “above”, “below”, and “below” a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] The following is a further description of the specific embodiments of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0021] Please see Figure 1-4 As shown, the present invention provides a fully automatic sewing machine, which includes a machine body 101, on which a thread-beating structure and a transmission structure connected to the thread-beating structure are arranged, characterized in that: the transmission structure includes a balancing block 1, an eccentric wheel 2, a first connecting rod 3, a first swing block 4, a shaft rod 5, a second connecting rod 6 and a second swing block 7, the balancing block 1 is fixed to the side of the machine body 101 and has a hollow portion, the eccentric wheel 2 is arranged in the hollow portion of the balancing block 1 and can rotate in the hollow portion, the eccentric wheel 2 is connected and installed with the balancing block 1, and the balancing block 1 makes The mass center of the rotating part is close to the rotation center, which reduces vibration when the machine rotates, and the speed is faster and the noise is smaller. One end of the first connecting rod 3 is connected to the eccentric wheel 2, and the other end is connected to the side of the first pendulum block 4. One end of the first pendulum block 4 is provided with an axial hole, and the shaft 5 is vertically fixed on the side of the machine body 101. The first pendulum block 4 is sleeved on the shaft 5 through the axial hole and rotates with the shaft 5 as the axis. The other end of the first pendulum block 4 is connected to the second pendulum block 7 through the second connecting rod 6, and the other end of the second pendulum block 7 is connected to the wire-breaking shaft of the wire-breaking structure.

[0022] In this embodiment, the eccentric wheel 2 and the first connecting rod 3 are connected together by a joint screw 8, and the joint screw 8 is embedded in one end of the eccentric wheel 2 and a corresponding screw hole 9 is provided on the side of the eccentric wheel 2. An adjusting screw 10 for adjusting the eccentricity of the joint screw 8 is provided at the screw hole 9.

[0023] In this implementation case, there are three screw holes 9 arranged on the side of the eccentric wheel 2.

[0024] In this embodiment, the balancing weight 1 is provided with a screw hole 11 for cooperating with a screw to lock the eccentric wheel 2 in rotation.

[0025] The eccentric wheel 2 performs clockwise circular motion, driving the first pendulum block 4 and the second pendulum block 7 to swing. The transmission structure greatly reduces the occupied space and at the same time enables the pendulum block to have a quick return feature. When returning the needle, the excess thread can be quickly recovered, so that the quilting effect is better. The addition of an adjustable eccentric wheel structure can make it more convenient to adjust to the appropriate thread amount. The maximum and minimum distances are when the three points of the pendulum block are in a straight line, so that the angle of the thread rising is smaller than that of the falling, and the eccentric wheel rotates at a constant speed, so that the ratio of the thread rising to the falling is faster, thereby achieving the effect of tighter thread collection.

[0026] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0027] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the well-known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A fully automatic sewing machine, comprising a machine body (101), wherein the machine body (101) is provided with a thread-binding structure and a transmission structure connected to the thread-binding structure, wherein: The transmission structure comprises a balancing block (1), an eccentric wheel (2), a first connecting rod (3), a first pendulum block (4), a shaft rod (5), a second connecting rod (6) and a second pendulum block (7); the balancing block (1) is fixed to the side of the machine body (101) and has a hollow portion; the eccentric wheel (2) is arranged in the hollow portion of the balancing block (1) and can rotate in the hollow portion; one end of the first connecting rod (3) is connected to the eccentric wheel (2), and the other end is connected to the side of the first pendulum block (4); one end of the first pendulum block (4) is provided with an axial hole; the shaft rod (5) is vertically fixed to the side of the machine body (101); the first pendulum block (4) is sleeved on the shaft rod (5) through the axial hole and uses the shaft rod (5) as an axis The eccentric wheel (2) and the first connecting rod (3) are connected together by a joint screw (8), wherein the joint screw (8) is embedded in one end of the eccentric wheel (2) and a corresponding screw hole (9) is provided on the side of the eccentric wheel (2), and an adjusting screw (10) for adjusting the eccentricity of the joint screw (8) is provided at the screw hole (9); there are three screw holes (9) provided on the side of the eccentric wheel (2); and a screw hole (11) for matching the screw to lock the direction of the eccentric wheel (2) is provided on the balancing block (1).

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