Stepping motor presser foot lifting device of upper pulling machine

Abstract

The utility model relates to the technical field of upper pulling machines, in particular to an upper pulling machine stepping motor presser foot lifting device which comprises a shell, a first transmission assembly is arranged on one side of the shell, and a presser foot frame and a second transmission assembly are arranged on the other side of the shell. The first transmission assembly comprises a first motor, the first motor is mounted on a first motor mounting plate, and the first motor mounting plate is fixedly connected with the shell; an output shaft of the first motor is sleeved with a first output wheel, a first transmission wheel is arranged on one side of the first output wheel, the first output wheel is meshed with the first transmission wheel, a first cam is arranged on one side of the first transmission wheel, and the first cam and the first transmission wheel are both sleeved with a first transmission shaft; and the first transmission shaft is connected with the first motor mounting plate. The stepping motor is adopted to control the presser foot lifting, an air compressor does not need to be additionally arranged, installation is easy and convenient, the customer cost is reduced, and uniform sewing of thick and thin materials can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lasting machines, in particular to a stepping motor presser foot lifting device of lasting machines. Background Art

[0002] When sewing clothes, soles, etc., it is difficult to penetrate the clothes, soles, etc., which makes sewing more difficult, resulting in low sewing efficiency. In the prior art, a lasting machine is a device used to assist in penetrating clothes, soles, etc.

[0003] At present, the market usually adopts artificial knee to control the rise and fall of presser foot, or adopts cylinder control. When artificial knee is used to control the rise and fall of presser foot, if the strength and force of presser foot are not properly controlled, it is easy to crush or damage the material. When cylinder control is adopted, customers need to equip additional air compressor with fixed stroke, which not only complicates the installation structure, but also increases customer cost.

[0004] Therefore, it is necessary for the present application to design a stepping motor presser foot lifting device for a lasting machine to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a stepping motor presser foot lifting device for a lasting machine is proposed. The stepping motor is used to control the presser foot lifting, and no additional air compressor is required. The installation is simple and convenient, and the customer cost is reduced, and uniform sewing of thick and thin materials can be achieved.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A stepping motor presser foot lifting device for a lasting machine comprises a housing, one side of the housing is provided with a first transmission assembly, and the other side of the housing is provided with a presser foot frame and a second transmission assembly;

[0008] The first transmission assembly includes a first motor, the first motor is mounted on a first motor mounting plate, and the first motor mounting plate is fixedly connected to the housing;

[0009] A first output wheel is sleeved on the output shaft of the first motor, a first transmission wheel is provided on one side of the first output wheel, the first output wheel is meshed with the first transmission wheel, a first cam is provided on one side of the first transmission wheel, the first cam and the first transmission wheel are both sleeved on the first transmission shaft, and the first transmission shaft is connected to the first motor mounting plate;

[0010] The first cam is connected to a first connecting rod, one end of the first connecting rod is connected to the first cam, and the other end of the first connecting rod is connected to the first transmission rod via a coupling.

[0011] Preferably, the second transmission assembly includes a second motor, the second motor is mounted on a second motor mounting plate, and the second motor mounting plate is fixedly connected to the presser foot stand.

[0012] Preferably, the output shaft of the second motor is connected to the second output wheel, and a second transmission rod is vertically arranged on one side of the second output wheel, the upper end of the second transmission rod passes through the presser foot frame and is sleeved with the second transmission wheel, and the second transmission wheel is meshed with the second output wheel; the lower end of the second transmission rod passes through the presser foot frame and is sleeved with the third transmission wheel, a first feeding wheel is provided on one side of the third transmission wheel, the third transmission wheel is meshed with the first feeding wheel, a second feeding wheel is provided on one side of the first feeding wheel, the first feeding wheel is meshed with the second feeding wheel, and the first feeding wheel is connected to the presser foot frame through a needle plate fixing frame.

[0013] Preferably, the first transmission rod horizontally penetrates the housing, one end of the first transmission rod is connected to the coupling, and the other end of the first transmission rod is connected to the presser foot stand.

[0014] Preferably, the first motor and the second motor are both stepper motors.

[0015] By adopting the above technical solution: the first motor and the second motor, that is, the double stepper motor is used to control the presser foot frame, and the first motor controls the presser foot frame in sequence through the first output wheel, the first transmission wheel, the first cam, the first connecting rod, the first transmission rod, etc.; that is, the stepper control presser foot is used, and no additional air compressor is required, the installation is simple and convenient, and the customer cost is reduced; at the same time, the stepper motor is used to control the automatic presser foot lift to achieve uniform sewing of thick and thin materials, and the presser foot height can be automatically controlled according to the material, and the sewing line is more beautiful; the presser foot strength and force can also be automatically controlled according to the thickness and hardness of the material, so as to avoid crushing or injuring the material, thereby ensuring the quality of the material. In addition, the second motor is used to feed the material through the first feeding wheel and the second feeding wheel, which can control the close sewing of the first few stitches and the close sewing after cutting the thread to prevent the thread from falling off; it makes its structure simple, with fewer parts, reduces the maintenance frequency of the machine, thereby reducing costs and improving work efficiency.

[0016] Preferably, the second output wheel and the second transmission wheel are both conical wheels.

[0017] By adopting the above technical solution: a conical wheel is adopted here, so that the transmission of the second transmission component is more flexible, reliable and stable.

[0018] Preferably, the presser foot stand is respectively provided with a first mounting hole connected to the first transmission rod, a second mounting hole and a third mounting hole connected to the second transmission rod, and a fourth mounting hole connected to the needle plate fixing frame.

[0019] By adopting the above technical solution: a plurality of mounting holes are used here to facilitate the connection of the presser foot stand with the first transmission assembly and the second transmission assembly respectively.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model adopts a stepper motor to control the presser foot lift, does not need an additional air compressor, is simple and convenient to install, and reduces customer costs.

[0022] 2. The utility model adopts a stepping motor to control the automatic presser foot lifting, which can achieve uniform sewing of thick and thin materials, and can automatically control the presser foot height according to the material, making the sewing lines more beautiful.

[0023] 3. The utility model adopts stepper motor control, which can automatically control the strength and force of the presser foot according to the thickness and hardness of the material, so as to avoid crushing or injuring the material, thereby ensuring the quality of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the connection between the first transmission assembly and the second transmission assembly in the utility model;

[0026] Figure 3 It is a structural schematic diagram of the first transmission component in the utility model;

[0027] Figure 4 It is a structural schematic diagram of the second transmission assembly in the utility model;

[0028] Figure 5 It is a structural schematic diagram of the first cam in the utility model;

[0029] Figure 6 It is a structural schematic diagram of the medium-pressure tripod of the utility model.

[0030] In the figure: 1 housing, 2 presser foot, 2-1 first mounting hole, 2-2 second mounting hole, 2-3 third mounting hole, 2-4 fourth mounting hole, 3 first motor, 4 first motor mounting plate, 5 first output wheel, 6 first transmission wheel, 7 first cam, 8 first transmission shaft, 9 first connecting rod, 10 coupling, 11 first transmission rod, 12 second motor, 13 second motor mounting plate, 14 second output wheel, 15 second transmission rod, 16 second transmission wheel, 17 third transmission wheel, 18 first feeding wheel, 19 second feeding wheel, 20 needle plate fixing frame. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Reference Figure 1-Figure 6 A stepping motor presser foot lifting device for a lasting machine comprises a housing 1, one side of the housing 1 is provided with a first transmission assembly, and the other side of the housing 1 is provided with a presser foot frame 2 and a second transmission assembly;

[0033] Reference Figure 3 , the first transmission assembly includes a first motor 3, the first motor 3 is mounted on a first motor mounting plate 4, and the first motor mounting plate 4 is fixedly connected to the housing 1;

[0034] A first output wheel 5 is sleeved on the output shaft of the first motor 3, a first transmission wheel 6 is provided on one side of the first output wheel 5, the first output wheel 5 is meshed with the first transmission wheel 6, a first cam 7 is provided on one side of the first transmission wheel 6, the first cam 7 and the first transmission wheel 6 are both sleeved on a first transmission shaft 8, and the first transmission shaft 8 is connected to the first motor mounting plate 4;

[0035] The first cam 7 is connected to a first connecting rod 9 , one end of the first connecting rod 9 is connected to the first cam 7 , and the other end of the first connecting rod 9 is connected to a first transmission rod 11 via a coupling 10 .

[0036] Specifically, refer to Figure 4 The second transmission assembly includes a second motor 12 , and the second motor 12 is mounted on a second motor mounting plate 13 , and the second motor mounting plate 13 is fixedly connected to the presser foot stand 2 .

[0037] Specifically, refer to Figure 4 The output shaft of the second motor 12 is connected to the second output wheel 14, and a second transmission rod 15 is vertically arranged on one side of the second output wheel 14. The upper end of the second transmission rod 15 passes through the presser foot frame 2 and is sleeved with the second transmission wheel 16, and the second transmission wheel 16 is meshed with the second output wheel 14; the lower end of the second transmission rod 15 passes through the presser foot frame 2 and is sleeved with the third transmission wheel 17, and a first feeding wheel 18 is arranged on one side of the third transmission wheel 17, and the third transmission wheel 17 is meshed with the first feeding wheel 18, and a second feeding wheel 19 is arranged on one side of the first feeding wheel 18, and the first feeding wheel 18 is meshed with the second feeding wheel 19, and the first feeding wheel 18 is connected to the presser foot frame 2 through a needle plate fixing frame 20.

[0038] The first transmission rod 11 horizontally penetrates the housing 1, one end of the first transmission rod 11 is connected to the coupling 10, and the other end of the first transmission rod 11 is connected to the presser foot stand 2. The coupling 10 here serves to connect the first connecting rod 9 and the first transmission rod 11, so that the first transmission assembly controls the movement of the presser foot stand 2 through the first transmission rod 11.

[0039] Wherein, the first motor 3 and the second motor 12 are both stepper motors.

[0040] In this embodiment, the first motor 3 and the second motor 12, that is, the double stepper motors are used to control the presser foot frame, and the first motor 3 controls the presser foot frame 2 in sequence through the first output wheel 5, the first transmission wheel 6, the first cam 7, the first connecting rod 9, the first transmission rod 11, etc.; that is, the stepper motor is used to control the presser foot lifting, and no additional air compressor is required, the installation is simple and convenient, and the customer cost is reduced; at the same time, the stepper motor is used to control the automatic presser foot lifting to achieve uniform sewing of thick and thin materials, and the presser foot height can be automatically controlled according to the material, and the sewing line is more beautiful; the presser foot strength and force can also be automatically controlled according to the thickness and hardness of the material, so as to avoid crushing or injuring the material, thereby ensuring the quality of the material. At the same time, here, the second motor 12 is used to feed the material through the first feeding wheel 18 and the second feeding wheel 19, so that the first few stitches can be controlled to be tightly sewn and the thread can be tightly sewn after cutting, so as to prevent the thread from falling off; the structure is simple, the parts are less, the maintenance frequency of the machine is reduced, and the cost is reduced, and the work efficiency is improved.

[0041] Specifically, the second output wheel 14 and the second transmission wheel 16 are both conical wheels.

[0042] In this embodiment, a conical wheel is used here to make the transmission of the second transmission assembly more flexible, reliable and stable.

[0043] Specifically, refer to Figure 6 The presser foot stand 2 is respectively provided with a first mounting hole 2-1 connected to the first transmission rod 11, a second mounting hole 2-2 and a third mounting hole 2-3 connected to the second transmission rod 15, and a fourth mounting hole 2-4 connected to the needle plate fixing frame 20.

[0044] In this embodiment, a plurality of mounting holes are used here to facilitate the connection of the presser foot stand 2 with the first transmission assembly and the second transmission assembly respectively.

[0045] When the utility model is used, the first motor 3 sequentially controls the presser foot frame 2 through the first output wheel 5, the first transmission wheel 6, the first cam 7, the first connecting rod 9, the first transmission rod 11, etc.; that is, the stepper motor is used to control the presser foot lifting, and no additional air compressor is required, the installation is simple and convenient, and the customer cost is reduced; at the same time, the stepper motor is used to control the automatic presser foot lifting to achieve uniform sewing of thick and thin materials, and the presser foot height can be automatically controlled according to the material, and the sewing line is more beautiful; the presser foot strength and force can also be automatically controlled according to the thickness and hardness of the material, so as to avoid crushing or injuring the material, thereby ensuring the quality of the material. At the same time, here, the second motor 12 is used to feed the material through the first feeding wheel 18 and the second feeding wheel 19, so that the first few stitches can be controlled to be tightly sewn and the thread can be tightly sewn after cutting, so as to prevent the thread from falling off; the structure is simple, the parts are less, the maintenance frequency of the machine is reduced, and the cost is reduced, and the work efficiency is improved.

[0046] To sum up, the utility model adopts a stepper motor to control the presser foot lifting, does not need an additional air compressor, is simple and convenient to install, and reduces customer costs; adopts a stepper motor to control the automatic presser foot lifting, can achieve uniform sewing of thick and thin materials, can automatically control the presser foot height according to the material, and the sewing lines are more beautiful; adopts a stepper motor control, can automatically control the presser foot strength and force according to the thickness and hardness of the material, thereby avoiding crushing or injuring the material, thereby ensuring the quality of the material.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stepping motor presser foot lifting device for a lasting machine, comprising a housing (1), characterized in that: A first transmission assembly is provided on one side of the housing (1), and a presser foot stand (2) and a second transmission assembly are provided on the other side of the housing (1); The first transmission assembly comprises a first motor (3), the first motor (3) being mounted on a first motor mounting plate (4), and the first motor mounting plate (4) being fixedly connected to the housing (1); A first output wheel (5) is sleeved on the output shaft of the first motor (3); a first transmission wheel (6) is provided on one side of the first output wheel (5); the first output wheel (5) meshes with the first transmission wheel (6); a first cam (7) is provided on one side of the first transmission wheel (6); the first cam (7) and the first transmission wheel (6) are both sleeved on a first transmission shaft (8); and the first transmission shaft (8) is connected to a first motor mounting plate (4); The first cam (7) is connected to a first connecting rod (9), one end of the first connecting rod (9) is connected to the first cam (7), and the other end of the first connecting rod (9) is connected to a first transmission rod (11) via a coupling (10); The second transmission assembly comprises a second motor (12), the second motor (12) is mounted on a second motor mounting plate (13), and the second motor mounting plate (13) is fixedly connected to the presser foot frame (2); The first motor (3) and the second motor (12) are both stepping motors.

2. The stepping motor presser foot lifting device of the lasting machine according to claim 1, characterized in that: The output shaft of the second motor (12) is connected to a second output wheel (14); a second transmission rod (15) is vertically arranged on one side of the second output wheel (14); the upper end of the second transmission rod (15) passes through the presser foot frame (2) and is sleeved with a second transmission wheel (16); the second transmission wheel (16) is meshed with the second output wheel (14); the lower end of the second transmission rod (15) passes through the presser foot frame (2) and is sleeved with a third transmission wheel (17); a first feeding wheel (18) is arranged on one side of the third transmission wheel (17); the third transmission wheel (17) is meshed with the first feeding wheel (18); a second feeding wheel (19) is arranged on one side of the first feeding wheel (18); the first feeding wheel (18) is meshed with the second feeding wheel (19); the first feeding wheel (18) is connected to the presser foot frame (2) via a needle plate fixing frame (20).

3. The stepping motor presser foot lifting device of the lasting machine according to claim 1, characterized in that: The first transmission rod (11) horizontally penetrates the housing (1), one end of the first transmission rod (11) is connected to the coupling (10), and the other end of the first transmission rod (11) is connected to the presser foot stand (2).

4. The stepping motor presser foot lifting device of the lasting machine according to claim 2, characterized in that: The second output wheel (14) and the second transmission wheel (16) are both conical wheels.

5. The stepping motor presser foot lifting device of the lasting machine according to claim 2, characterized in that: The presser foot stand (2) is respectively provided with a first mounting hole (2-1) connected to the first transmission rod (11), a second mounting hole (2-2) and a third mounting hole (2-3) connected to the second transmission rod (15), and a fourth mounting hole (2-4) connected to the needle plate fixing frame (20).

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