Double-thread sewing equipment for knitted fabric production

Abstract

The double-thread sewing equipment for knitted fabric production comprises a base and a driving motor, the base is of a square hollow structure, an opening is formed in the upper end of the base, sliding grooves are formed in the two sides of the base, a lifting table is slidably connected into the two sliding grooves, a two-way lead screw is installed at the lower end of the lifting table, and the two-way lead screw is connected with the driving motor. The two-way lead screw is arranged in the base, rotating rods at the two ends of the two-way lead screw are connected to the inner side of the base, the directions of threads at the two ends of the two-way lead screw are opposite, and sliding blocks are arranged on the opposite threads of the two-way lead screw in a sleeving mode. The rotating shaft rotates to drive the rolling wheel to rotate, the rolling wheel drives the connecting rod to move, and the sliding sleeve slides in the sewing shell, so that the sliding sleeve converts rotation of the rolling wheel into vertical movement, and the double-thread needle is driven to move close to the shuttle hook circularly.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing, in particular to a double-thread sewing device for producing knitted fabrics. Background Art

[0002] A double-thread sewing machine is a sewing machine with two sewing threads that can form two evenly spaced track lines in a single operation. The main feature of this sewing machine is that its sewing effect is two parallel threads, making the sewing seams neat and beautiful. Double-thread sewing machines are generally divided into ordinary and computerized types, suitable for sewing fabrics of different thicknesses, including thin, medium and thick fabrics. From the perspective of existing technology, common double-thread sewing machines all have an operating table to control automatic sewing. However, during the maintenance and work inspection of the sewing equipment, it is often not suitable for different groups of people. It requires manual bending over for a long time to operate, and the sewing height is not adjustable. Therefore, there is a need for a double-thread sewing machine for knitted fabric production.

[0003] It should be noted that the above content belongs to the technical cognition category of practical people and does not necessarily constitute prior art. Utility Model Content

[0004] The utility model aims to solve the shortcoming of the existing double-thread sewing equipment in the prior art that the height cannot be adjusted, and proposes a double-thread sewing equipment for knitted fabric production.

[0005] To achieve the above-mentioned purpose, the utility model proposes a double-line sewing equipment for knitted fabric production, including a base and a driving motor, the base is a square hollow structure, and an opening is provided at the upper end of the base, and slide grooves are provided on both sides of the base, and a lifting platform is slidably connected in two groups of the slide grooves, and a bidirectional screw rod is installed at the lower end of the lifting platform, the bidirectional screw rod is placed in the base, and the two ends of the bidirectional screw rod are rotatably connected to the inner side of the base, the two ends of the bidirectional screw rod have opposite thread directions, and sliders are sleeved on the opposite threads of the bidirectional screw rod, the two groups of sliders are square structures, and a threaded hole is provided in the middle position of the slider, the slider is threadedly connected to the outside of the bidirectional screw rod based on the threaded hole, and push rods are rotatably connected on both sides of the slider, one end of the push rod is rotatably connected to the slider, and the other end of the push rod is rotatably connected to the lifting platform, and a sewing shell is installed on the side of the lifting platform away from the bidirectional screw rod.

[0006] Preferably, a bracket is installed inside the sewing shell, one end of the bracket is fixedly connected to the lifting platform, and the other end of the bracket is rotatably connected to a rotating shaft, one end of the rotating shaft passes through the bracket and is fixedly connected to a driven wheel, and the other end of the rotating shaft is fixedly connected to a rotating wheel, and the middle position of the rotating shaft is bent.

[0007] Preferably, a gear is installed on one side of the driven wheel, the gear is fixedly connected to the output end of the driving motor, the housing of the driving motor is fixedly connected to the bracket, and the gear is meshed with the driven wheel.

[0008] Preferably, the runner has an arc-shaped structure, and the diameter of one side of the runner is larger than the diameter of the other side. A sliding sleeve is installed on the side of the runner with a larger diameter through a connecting rod. One end of the connecting rod is rotatably connected to the runner, and the other end of the connecting rod is rotatably connected to the sliding sleeve. The sliding sleeve has an annular structure, and one side of the outer arc-shaped surface of the sliding sleeve is rotatably connected to the connecting rod, and the side of the sliding sleeve opposite to the connecting rod is slidably connected to the inner wall of the sewing shell, and a double-thread needle is installed on the inner side of the sliding sleeve.

[0009] Preferably, the bending part of the rotating shaft is rotatably connected to an auxiliary rod, one end of the auxiliary rod is rotatably connected to the rotating shaft, and the other end of the auxiliary rod is rotatably connected to a swing frame, one end of the swing frame is rotatably connected to the auxiliary rod, and the other end of the swing frame is fixedly connected to the rotating rod, and the rotating rod is rotatably connected to the side of the lifting platform away from the bidirectional screw rod.

[0010] Preferably, a shuttle is fixedly connected to the side of the rotating rod close to the double-thread needle, and the position of the shuttle corresponds to the position of the double-thread needle.

[0011] Preferably, a handle is fixedly connected to the base on the side of the bidirectional screw rod close to the double-thread needle.

[0012] The double-thread sewing equipment for knitted fabric production proposed by the utility model can bring the following beneficial effects:

[0013] 1. In the utility model, a motor is used to drive a driven wheel to rotate, and the driven wheel is fixedly connected to a rotating shaft, so that the rotating shaft rotates, and the rotation of the rotating shaft drives the roller to rotate. Since the roller drives the connecting rod to move, and the sliding sleeve slides in the sewing shell, the sliding sleeve converts the rotation of the roller into up and down movement, driving the double-thread needle to move close to the shuttle for a circular movement, and the rotation of the rotating shaft drives the auxiliary rod to rotate at the same time. Since the two ends of the auxiliary rod are respectively connected to the rotating shaft and the swing frame, and the swing frame is fixedly connected to the rotating rod, the rotating rod drives the shuttle to swing back and forth, thereby achieving the purpose of sewing.

[0014] 2. In the utility model, while sewing, the handle is turned to adjust the bidirectional screw to rotate the rod. Since the threads on the bidirectional screw are opposite, the bidirectional screw rotates, and the slider on the bidirectional screw moves relative to each other. Since the slider is connected to the lifting platform through the push rod, the two ends of the push rod are rotated to connect the lifting platform and the slider respectively, so as to rotate the bidirectional screw and realize the purpose of lifting the lifting platform. The lifting platform slides in the base, making the movement of the lifting platform more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the overall structure of a double-thread sewing device for knitted fabric production proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the overall perspective structure of a double-thread sewing device for knitted fabric production proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the overall perspective structure of a double-thread sewing device for knitted fabric production proposed by the present invention from another angle;

[0019] Figure 4 This utility model proposes a double-thread sewing device for knitted fabric production Figure 3 A magnified schematic diagram of the structure at center A.

[0020] In the figure: 1. Base; 2. Sewing shell; 3. Lifting platform; 4. Rotating shaft; 5. Driven wheel; 6. Driving motor; 7. Auxiliary rod; 8. Rotating wheel; 9. Connecting rod; 10. Sliding sleeve; 11. Double-thread needle; 12. Swinging frame; 13. Rotating rod; 14. Shuttle; 15. Handle; 16. Bidirectional screw rod; 17. Slider; 18. Push rod; 19. Slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "all around" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0023] Example 1

[0024] like Figure 1-4As shown, the utility model proposes a double-thread sewing device for knitted fabric production, including a base 1 and a drive motor 6. The base 1 is a square hollow structure, and an opening is provided at the upper end of the base 1. Slide grooves 19 are provided on both sides of the base 1. A lifting platform 3 is slidably connected in the two sets of slide grooves 19. A bidirectional screw rod 16 is installed at the lower end of the lifting platform 3. The bidirectional screw rod 16 is placed in the base 1, and the two ends of the bidirectional screw rod 16 are rotatably connected to the inner side of the base 1. The thread directions of the two ends of the bidirectional screw rod 16 are opposite, and the opposite threads of the bidirectional screw rod 16 are opposite. The grooves are each provided with a slider 17, and the two groups of sliders 17 are square in structure, and a threaded hole is provided in the middle of the slider 17. The slider 17 is threadedly connected to the outside of the bidirectional screw rod 16 based on the threaded hole, and push rods 18 are rotatably connected on both sides of the slider 17. One end of the push rod 18 is rotatably connected to the slider 17, and the other end of the push rod 18 is rotatably connected to the lifting platform 3. A sewing shell 2 is installed on one side of the lifting platform 3 away from the bidirectional screw rod 16, wherein the side of the bidirectional screw rod 16 close to the double-thread needle 11 is fixedly connected to the handle 15 through the base 1.

[0025] Among them, while sewing, the handle 15 is turned to adjust the bidirectional screw rod 16 to rotate the rod 13. Since the threads on the bidirectional screw rod 16 are opposite, the bidirectional screw rod 16 rotates, and the slider 17 on the bidirectional screw rod 16 moves relative to each other. Since the slider 17 is connected to the lifting platform 3 through the push rod 18, the two ends of the push rod 18 are respectively rotated to connect the lifting platform 3 and the slider 17, so as to achieve the purpose of rotating the bidirectional screw rod 16 and lifting the lifting platform 3. The lifting platform 3 slides in the base 1, making the movement of the lifting platform 3 more stable, which is convenient for the staff to perform inspection and maintenance.

[0026] Example 2

[0027] like Figure 1-3As shown, the utility model is based on the first embodiment, a double-thread sewing device for knitted fabric production, and also includes a sewing device on a lifting platform 3, wherein a bracket is installed inside the sewing shell 2, one end of the bracket is fixedly connected to the lifting platform 3, and the other end of the bracket is rotatably connected to a rotating shaft 4, one end of the rotating shaft 4 passes through the bracket and is fixedly connected to a driven wheel 5, and the other end of the rotating shaft 4 is fixedly connected to a rotating wheel 8, the middle position of the rotating shaft 4 is bent, wherein a gear is installed on one side of the driven wheel 5, the gear is fixedly connected to the output end of the driving motor 6, the housing of the driving motor 6 is fixedly connected to the bracket, the gear is meshed with the driven wheel 5, wherein the rotating wheel 8 is an arc-shaped structure, and the diameter of one side of the rotating wheel 8 is larger than the diameter of the other side, and the side with the larger diameter of the rotating wheel 8 is installed with a sliding sleeve 10 through a connecting rod 9, and one end of the connecting rod 9 is rotatably connected The rotating wheel 8, and the other end of the connecting rod 9 is rotatably connected to the sliding sleeve 10, the sliding sleeve 10 is annular in structure, one side of the outer arc surface of the sliding sleeve 10 is rotatably connected to the connecting rod 9, and the side of the sliding sleeve 10 opposite to the connecting rod 9 is slidably connected to the inner wall of the sewing shell 2, and a double-thread needle 11 is installed on the inner side of the sliding sleeve 10, wherein the bending part of the rotating shaft 4 is rotatably connected to the auxiliary rod 7, one end of the auxiliary rod 7 is rotatably connected to the rotating shaft 4, and the other end of the auxiliary rod 7 is rotatably connected to the swing frame 12, one end of the swing frame 12 is rotatably connected to the auxiliary rod 7, and the other end of the swing frame 12 is fixedly connected to the rotating rod 13, the rotating rod 13 is rotatably connected to the side of the lifting platform 3 away from the bidirectional screw rod 16, wherein the side of the rotating rod 13 close to the double-thread needle 11 is fixedly connected to the shuttle 14, and the position of the shuttle 14 corresponds to the position of the double-thread needle 11.

[0028] Among them, the driven wheel 5 is driven by a motor to rotate, and the driven wheel 5 is fixedly connected to the rotating shaft 4, so that the rotating shaft 4 rotates, and the rotation of the rotating shaft 4 drives the roller to rotate. Since the roller drives the connecting rod 9 to move, and the sliding sleeve 10 slides in the sewing shell 2, the sliding sleeve 10 converts the rotation of the roller into up and down movement, driving the double-thread needle 11 to move close to the shuttle 14 for a circular movement, and the rotation of the rotating shaft 4 drives the auxiliary rod 7 to rotate at the same time. Since the two ends of the auxiliary rod 7 are respectively connected to the rotating shaft 4 and the swing frame 12, and the swing frame 12 is fixedly connected to the rotating rod 13, the rotating rod 13 drives the shuttle 14 to swing back and forth, thereby achieving the purpose of sewing.

[0029] Working principle: The motor drives the driven wheel 5 to rotate. The driven wheel 5 is fixedly connected to the rotating shaft 4, so that the rotating shaft 4 rotates. The rotation of the rotating shaft 4 drives the roller to rotate. Since the roller drives the connecting rod 9 to move, and the sliding sleeve 10 slides in the sewing shell 2, the sliding sleeve 10 converts the rotation of the roller into up and down movement, driving the double-thread needle 11 to move close to the shuttle 14 in a cycle, and the rotation of the rotating shaft 4 drives the auxiliary rod 7 to rotate at the same time. Since the two ends of the auxiliary rod 7 are respectively connected to the rotating shaft 4 and the swing frame 12, and the swing frame 12 is fixedly connected to the rotating rod 13, the rotating shaft 4 rotates. The movable rod 13 drives the shuttle 14 to swing back and forth to achieve the purpose of sewing. While sewing, the handle 15 is turned to adjust the bidirectional screw rod 16 to rotate the rod 13. Since the threads on the bidirectional screw rod 16 are opposite, the bidirectional screw rod 16 rotates, and the slider 17 on the bidirectional screw rod 16 moves relative to each other. Since the slider 17 is connected to the lifting platform 3 through the push rod 18, the two ends of the push rod 18 are respectively rotated to connect the lifting platform 3 and the slider 17, so as to rotate the bidirectional screw rod 16 and achieve the purpose of lifting the lifting platform 3. The lifting platform 3 slides in the base 1, making the movement of the lifting platform 3 more stable.

[0030] Throughout this specification, references to terms such as "one embodiment," "example," and "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-thread sewing device for knitted fabric production, comprising a base (1) and a drive motor (6), characterized in that: The base (1) is a square hollow structure, and an opening is provided at the upper end of the base (1). Slide grooves (19) are provided on both sides of the base (1). A lifting platform (3) is slidably connected in two groups of the slide grooves (19). A bidirectional screw rod (16) is installed at the lower end of the lifting platform (3). The bidirectional screw rod (16) is placed in the base (1), and the two ends of the bidirectional screw rod (16) are rotatably connected in the base (1). The two ends of the bidirectional screw rod (16) have opposite thread directions, and the opposite threads of the bidirectional screw rod (16) are connected to each other. Both groups of sliders (17) are sleeved, and the two groups of sliders (17) are square in structure, and a threaded hole is opened in the middle position of the slider (17). The slider (17) is threadedly connected to the outside of the bidirectional screw rod (16) based on the threaded hole. Push rods (18) are rotatably connected to both sides of the slider (17). One end of the push rod (18) is rotatably connected to the slider (17), and the other end of the push rod (18) is rotatably connected to the lifting platform (3). A sewing shell (2) is installed on the side of the lifting platform (3) away from the bidirectional screw rod (16).

2. The double-thread sewing equipment for knitted fabric production according to claim 1, characterized in that: A bracket is installed inside the sewing housing (2), one end of the bracket is fixedly connected to the lifting platform (3), the other end of the bracket is rotatably connected to a rotating shaft (4), one end of the rotating shaft (4) passes through the bracket and is fixedly connected to a driven wheel (5), and the other end of the rotating shaft (4) is fixedly connected to a rotating wheel (8), and the middle position of the rotating shaft (4) is bent.

3. The double-thread sewing equipment for knitted fabric production according to claim 2, characterized in that: A gear is installed on one side of the driven wheel (5), and the gear is fixedly connected to the output end of the driving motor (6). The housing of the driving motor (6) is fixedly connected to the bracket, and the gear is meshed with the driven wheel (5).

4. The double-thread sewing equipment for knitted fabric production according to claim 2, characterized in that: The rotating wheel (8) is in an arc-shaped structure, and the diameter of one side of the rotating wheel (8) is larger than the diameter of the other side. The side of the rotating wheel (8) with a larger diameter is provided with a sliding sleeve (10) via a connecting rod (9). One end of the connecting rod (9) is rotatably connected to the rotating wheel (8), and the other end of the connecting rod (9) is rotatably connected to the sliding sleeve (10). The sliding sleeve (10) is in an annular structure. One side of the outer arc surface of the sliding sleeve (10) is rotatably connected to the connecting rod (9), and the side of the sliding sleeve (10) opposite to the connecting rod (9) is slidably connected to the inner wall of the sewing shell (2). A double-thread needle (11) is provided on the inner side of the sliding sleeve (10).

5. The double-thread sewing equipment for knitted fabric production according to claim 2, characterized in that: The bending part of the rotating shaft (4) is rotatably connected to an auxiliary rod (7), one end of the auxiliary rod (7) is rotatably connected to the rotating shaft (4), and the other end of the auxiliary rod (7) is rotatably connected to a swing frame (12), one end of the swing frame (12) is rotatably connected to the auxiliary rod (7), and the other end of the swing frame (12) is fixedly connected to a rotating rod (13), and the rotating rod (13) is rotatably connected to a side of the lifting platform (3) away from the bidirectional screw rod (16).

6. The double-thread sewing equipment for knitted fabric production according to claim 5, characterized in that: A shuttle (14) is fixedly connected to one side of the rotating rod (13) close to the double-thread needle (11), and the position of the shuttle (14) corresponds to the position of the double-thread needle (11).

7. The double-thread sewing equipment for knitted fabric production according to claim 1, characterized in that: The bidirectional screw rod (16) is fixedly connected to a handle (15) on one side close to the double-thread needle (11) through the base (1).

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