Additional device of sewing machine
By designing a fabric feeding bracket and a fabric clamping mechanism on the buttonhole machine, and using a motor to drive the fabric clamping mechanism to move laterally, the problem of multiple material feedings in the buttonhole machine is solved, realizing simple and efficient multi-buttonhole sewing, and reducing the complexity and cost of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-27
AI Technical Summary
Existing buttonhole machines require multiple feeds when sewing equidistant buttonholes or buttons leading to buttonholes, which is complex and costly.
A sewing machine attachment is adopted, including a fabric feeding bracket and a fabric clamping mechanism. The fabric clamping mechanism is driven by a motor to move laterally, so that multiple buttonholes can be sewn at one time. The fabric clamping mechanism consists of a lower clamping plate and an upper clamping plate. Lateral movement is achieved by a motor, gear and rack transmission and guide rail slider, and is equipped with a sensor and a cylinder to drive the fabric clamping plate to rotate.
It simplifies the operation process, improves work efficiency, enables multiple buttonholes to be sewn at once, and reduces the difficulty and cost of operation.
Smart Images
Figure CN224047658U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to sewing machine technical field relates to a sewing machine's additional device. BACKGROUND
[0002] The buttonhole machine is mainly used for processing the button hole in various clothes, and is divided into flat head buttonhole machine (straight eye machine) and round head buttonhole machine (phoenix eye car), and is divided into two kinds of tailing and not tailing, and is a very important special equipment in clothing machinery. The existing buttonhole machine is generally placed manually, and multiple feeding is required when sewing equidistant buttonholes or leading to buttonholes.
[0003] The existing patent CN221895284U discloses a buttonhole machine for garment processing, which comprises a workbench, an operation table, a buttonhole machine body, a driving adjusting mechanism and a flattening and pressing mechanism. The operation table is located on the top of the workbench, the buttonhole machine body is fixedly installed on the top of the workbench, an installation groove is formed in the top of the workbench, the driving adjusting mechanism is arranged in the installation groove, the driving adjusting mechanism is used for controlling the horizontal movement of the operation table, and the flattening and pressing mechanism is arranged on the operation table. The utility model has the following advantages and effects: the garment fabric can be automatically flattened on the operation table, the flattened garment fabric can be tightly fixed on the operation table for buttonhole processing, the flattened and pressed garment fabric can be horizontally moved and adjusted during the processing process, so that different parts of the garment fabric can be processed by the buttonhole, the operation is simple and convenient, time and labor are saved, and the working efficiency is improved. However, the driving adjusting mechanism of the patent has a relatively complex structure and high cost. SUMMARY
[0004] To solve the above technical problems, the utility model provides a sewing machine's additional device, can feed once can sew multiple buttonholes, simple structure, simple operation is convenient, saves time and labor, improves work efficiency.
[0005] The utility model adopts the technical scheme of:
[0006] A kind of sewing machine's additional device, including the cloth feeding support connected with shell, the cloth feeding support is installed with the cloth clamping mechanism that can move horizontally, the cloth clamping mechanism includes lower material clamping plate and upper material clamping plate, the lower material clamping plate is fixed on mounting plate, the upper material clamping plate can move up and leave lower material clamping plate and move down and cooperate with lower material clamping plate to clamp cloth and be installed on mounting plate, the mounting plate is driven to move horizontally by motor, so as to drive upper material clamping plate and lower material clamping plate to move horizontally.
[0007] Further, the motor is fixed on the cloth feeding support by motor mounting support, the motor mounting support is L-shaped support fixed by first motor mounting plate and second motor mounting plate, the output shaft of the motor protrudes from the second motor mounting plate and drives the mounting plate to move horizontally by transmission mechanism.
[0008] Further, the transmission mechanism comprises a rack fixed on the mounting plate and a gear fixed on the output shaft, the gear being engaged with the rack.
[0009] Further, the mounting plate is fixed with a guide rail, the second motor mounting plate is fixed with a guide rail slider below the output shaft, and the guide rail is slidably connected with the guide rail slider.
[0010] Further, the upper material clamping plate is rotatably connected to the mounting plate, the upper material clamping plate is connected with a cylinder for driving the front end of the upper material clamping plate to rotate downward, and the upper material clamping plate is connected with a reset member for driving the front end of the upper material clamping plate to rotate upward.
[0011] Further, the upper material clamping plate is rotatably installed through a shaft and bearings at both ends of the shaft, the bearings are installed in through holes of bearing supports, and the bearing supports are fixed on the mounting plate.
[0012] Further, the upper material clamping plate is fixed with a spring hanging plate, and the spring hanging plate is driven to move by a cylinder joint on a cylinder output shaft.
[0013] Further, reset members are arranged between both sides of the spring hanging plate and corresponding bearing supports, the reset members are springs, or reset members are arranged between the upper material clamping plate and the bearing supports, and the reset members are torsional springs.
[0014] Further, the upper material clamping plate and the lower material clamping plate are both provided with anti-skid layers.
[0015] Further, one or more sensors are installed on the second motor mounting plate, the mounting plate, the rack or the guide rail.
[0016] The utility model discloses the beneficial effect: through the motor drive cloth clamping mechanism whole horizontal shift, can once put material and can sew multiple buttonholes, simple structure, easy operation is convenient, save time and labor, improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the first kind of structure schematic diagram of the utility model.
[0018] Figure 2 It is the partial structure explosion drawing of the first kind of structure of the utility model.
[0019] Figure 3 It is the second kind of structure schematic diagram of the utility model.
[0020] In the figure: 1, the pressure foot support; 2, the pressure foot; 3, the feed plate; 4, the lower clamp plate; 5, the upper clamp plate; 6, the material blocking plate; 7, the fastener; 8, the hanging spring plate; 9, the first bearing support plate; 10, the bearing; 11, the shaft; 12, the circlip; 13, the spring; 14, the second bearing support plate; 15, the mounting plate; 16, the feed support; 17, the rack; 18, the inductor; 19, the first motor mounting plate; 20, the second motor mounting plate; 21, the motor; 22, the gear; 23, the cylinder joint; 24, the guide rail slider; 25, the cylinder; 26, the guide rail; 27, the torsional spring. DETAILED DESCRIPTION
[0021] The utility model will be further described below in combination with specific embodiments, but will not limit the utility model to these specific embodiments. Those skilled in the art should realize that the utility model covers all alternatives, improvements and equivalents that can be included in the scope of claims.
[0022] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more, unless otherwise explicitly limited.
[0023] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0024] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include first and second feature direct contact, also can include first and second feature is not direct contact but is through additional feature between them contact.
[0025] Referring to Figure 1 、 Figure 2 The embodiment provides an additional device of a sewing machine, which comprises a cloth feeding support 16 connected with a machine shell, a cloth clamping mechanism capable of moving horizontally is installed on the cloth feeding support 16, the cloth clamping mechanism comprises a lower clamping plate 4 and an upper clamping plate 5, the lower clamping plate 4 is fixed on a mounting plate 15, the upper clamping plate 5 can move upwards to leave the lower clamping plate 4 and move downwards to clamp cloth in cooperation with the lower clamping plate 4 and is installed on the mounting plate 15, and the mounting plate 15 is driven to move horizontally by a motor 21, so as to drive the upper clamping plate 5 and the lower clamping plate 4 to move horizontally.
[0026] The motor 21 is fixed on the cloth feeding support 16 through a motor mounting support in the embodiment, the motor mounting support is an L-shaped support formed by a first motor mounting plate 19 and a second motor mounting plate 20, an output shaft of the motor 21 protrudes from the second motor mounting plate 20 and drives the mounting plate 15 to move horizontally through a transmission mechanism. The transmission mechanism comprises a rack 17 fixed on the mounting plate 15 and a gear 22 fixed on the output shaft, the gear 22 is engaged with the rack 17. A guide rail 26 is fixed on the mounting plate 15, a guide rail sliding block 24 is fixed below the output shaft of the second motor mounting plate 20, and the guide rail 26 and the guide rail sliding block 24 are relatively slidably connected. One or more inductors 18 are installed on the second motor mounting plate 20 in the embodiment. Of course, the inductor 18 can also be installed on the mounting plate 15, the rack 17 or the guide rail 26.
[0027] The upper clamping plate 5 is rotatably connected to the mounting plate 15 and symmetrically arranged, the upper clamping plate 5 is connected with a cylinder 25 driving the front end of the upper clamping plate 5 to rotate downward, and the upper clamping plate 5 is connected with a reset member driving the front end of the upper clamping plate 5 to rotate upward. Specifically, the upper clamping plate 5 is rotatably installed through the shaft 11 and the bearings 10 at both ends of the shaft 11, the bearings 10 are installed in the through holes of the bearing supports, the bearing supports are L-shaped supports formed by the combination of the first bearing support plate 9 and the second bearing support plate 14, the through holes are formed in the first bearing support plate 9, and the bearing supports are fixed on the mounting plate 15 through the second bearing support plate 14. The through holes in the bearing supports on both sides of the upper clamping plate 5 are on the same axis, and the both ends of the shaft 11 pass through the corresponding bearings 10 and are fixed through the snap springs 12. The upper clamping plate 5 is fixed with a spring hanging plate 8, the spring hanging plate 8 is driven to act by the cylinder joint 23 on the output shaft of the cylinder 25. The both sides of the spring hanging plate 8 are provided with reset members between the corresponding bearing supports, and the reset members are springs 13.
[0028] The upper clamping plate 5 and the lower clamping plate 4 are provided with anti-skid layers, which ensure the reliability of the cloth clamping.
[0029] The cloth feeding support 16 of the embodiment is connected to the machine shell through the shaft on the machine shell and can be driven to move forward and backward along the axis of the shaft. The cloth feeding plate is fixedly installed on the cloth feeding support 16 through the fastener 7. The first motor mounting plate 19 is fixedly installed on the cloth feeding support 16 and the cloth feeding plate 3 through the fastener 7. The presser foot 2 is rotatably connected to the presser foot support 1, and the presser foot support 1 is rotatably connected to the cloth feeding support 16. The lower clamping plate 4 is provided with a material blocking plate 6.
[0030] The utility model discloses a device first finds the original point, if the left inductor 18 senses the rack 17, and the right inductor 18 does not sense the rack 17, then motor 21 drives the rack 17 to move to the right, and the right inductor 18 sends a signal. Conversely, if the left inductor 18 does not sense the rack 17, then the rack 17 runs to the right inductor 18 sends a signal in the opposite direction. At this time, motor 21 finds the original point position of the device. According to the position before and after the need of sewing, adjust the position of the material baffle 6, then put the cloth that needs to be sewn between the lower clamp plate 4 and the upper clamp plate 5, start the additional device, and the cylinder 25 runs the extension rod and ejects, and the cylinder joint 23 drives the spring plate 8 to make the upper clamp plate 5 rotate and press down, and clamps the cloth placed. At this time, the machine runs, and the presser foot 2 is lowered to start sewing the buttonhole, and the driving source drives the cloth feeding support 16 to move forward and backward, and the additional device moves forward and backward when connected to the cloth feeding support 16. After sewing a buttonhole, the presser foot 2 is raised and sends a signal, and the motor 21 rotates and drives the additional device to move horizontally, and stops and sends a signal after moving to the set distance, and the presser foot 2 is lowered again to start sewing. After completing the set number of sewing times, the cylinder 25 runs the extension rod and retracts, and the upper clamp plate 5 is reset under the action of the spring 13, and stops when the spring plate 8 contacts the cylinder joint 23. At this time, the sewn material can be taken out.
[0031] The utility model discloses a motor drive cloth clamping mechanism whole horizontal shift can put material once and can sew multiple buttonholes, simple structure, easy operation is convenient, save time and labour, improve work efficiency.
[0032] Example two
[0033] Refer to Figure 3 The difference between the embodiment and example one is that a reset member is arranged between the upper clamp plate 5 and the bearing support, and the reset member is a torsion spring 27. After completing the set number of sewing times, the cylinder 25 runs the extension rod and retracts, and the upper clamp plate 5 is reset under the action of the torsion spring 27.
[0034] The remaining structure and function can refer to example one.
Claims
1. An attachment for a sewing machine comprising a feed bracket (16) connected to the machine housing, said feed bracket (16) having a laterally movable clamp mechanism mounted thereon, characterised in that: The cloth clamping mechanism comprises a lower clamping plate (4) and an upper clamping plate (5), the lower clamping plate (4) is fixed on a mounting plate (15), the upper clamping plate (5) can move up to leave the lower clamping plate (4) and move down to clamp the cloth with the lower clamping plate (4), the mounting plate (15) is driven to move horizontally by a motor (21) to drive the upper clamping plate (5) and the lower clamping plate (4) to move horizontally.
2. An attachment for a sewing machine according to claim 1, characterised in that: The motor (21) is fixed on a cloth feeding support (16) by a motor mounting bracket, the motor mounting bracket is an L-shaped bracket formed by a first motor mounting plate (19) and a second motor mounting plate (20), the output shaft of the motor (21) protrudes from the second motor mounting plate (20) and drives the mounting plate (15) to move horizontally through a transmission mechanism.
3. A device for a sewing machine according to claim 2, characterized in that: The transmission mechanism comprises a rack (17) fixed on the mounting plate (15) and a gear (22) fixed on the output shaft, the gear (22) is engaged with the rack (17).
4. A device for a sewing machine according to claim 3, characterized in that: The mounting plate (15) is fixed with a guide rail (26), the second motor mounting plate (20) is fixed with a guide rail slider (24) below the output shaft, and the guide rail (26) is slidably connected with the guide rail slider (24).
5. The attachment for a sewing machine of claim 1 wherein: The upper clamping plate (5) is rotatably connected to the mounting plate (15), the upper clamping plate (5) is connected with a cylinder (25) for driving the front end of the upper clamping plate (5) to rotate and move down, and the upper clamping plate (5) is connected with a reset member for driving the front end of the upper clamping plate (5) to rotate and move up.
6. A device for a sewing machine according to claim 5, characterized in that: The upper clamping plate (5) is rotatably installed through the shaft (11) and the bearings (10) at both ends of the shaft (11), the bearings (10) are installed in the through holes of bearing brackets, and the bearing brackets are fixed on the mounting plate (15).
7. A device for a sewing machine according to claim 6, characterized in that: The upper clamping plate (5) is fixed with a spring hanging plate (8), and the spring hanging plate (8) is driven to act by a cylinder joint (23) on the output shaft of the cylinder (25).
8. A device for a sewing machine according to claim 7, characterized in that: Reset members are arranged between the both sides of the spring hanging plate (8) and the corresponding bearing brackets, the reset members are springs (13), or reset members are arranged between the upper clamping plate (5) and the bearing brackets, and the reset members are torsional springs (27).
9. The attachment for a sewing machine of claim 1, wherein: Anti-slip layers are arranged on the upper clamping plate (5) and the lower clamping plate (4).
10. The attachment for a sewing machine of claim 4, wherein: One or more sensors are installed on the second motor mounting plate (20), the mounting plate (15), the rack (17), or the guide rail (26).