CN221822516U - Buttonhole sewing machine - Google Patents

Abstract

The utility model relates to the field of sewing machines and discloses a buttonholing sewing machine which comprises a workbench, wherein an L-shaped plate is fixedly arranged at the top of the workbench, a buttonholing mechanism is fixedly arranged on the L-shaped plate, two rotating seats are rotatably arranged on the L-shaped plate, threaded grooves are formed in the bottoms of the rotating seats, threaded rods are arranged in the threaded grooves in a threaded manner, adjusting frame plates are fixedly arranged at the bottom ends of the two threaded rods, grooves are formed in the bottoms of the adjusting frame plates, rotating shafts are rotatably arranged on the inner walls of the front side and the rear side of the grooves, two connecting seats are fixedly arranged on the rotating shafts, and a smoothing roller is rotatably arranged between the two connecting seats. The utility model has the following advantages and effects: the cloth can be stretched through the movement of the two smoothing rollers, the phenomenon that the cloth is wrinkled is avoided, the fixed frame plate moves downwards, the flattened cloth can be pressed and fixed, and the aim of buttonholing on the cloth is fulfilled through a buttonholing mechanism on the sewing machine.

Description

A buttonhole sewing machine

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a buttonhole sewing machine.

Background Art

When garment processing is near the end, buttonholes are usually sewn. Common windbreakers and suits have many buttonholes, which is a lot of work to sew, so manual sewing of buttonholes is no longer appropriate. Buttonhole sewing machines are a very important type of equipment in garment machinery. They are mainly divided into flat-head buttonhole machines and round-head buttonhole machines. Buttonhole sewing machines form buttonholes on the processed fabric and lockstitch around the buttonholes.

The buttonhole sewing machine mainly includes a cloth feeding mechanism, a cutter and a needle. The processed cloth moves along the front-to-back direction on the base with the action of the cloth feeding mechanism, the cutter descends onto the processed cloth and cuts the processed cloth to form a buttonhole, and the rise and fall of the needle forms a buttonhole stitch around the buttonhole. When the buttonhole machine is processing, it is often unable to press and fix the clothing, which makes it easy for the clothing fabric to wrinkle, affecting the processing quality. There is a problem that it is inconvenient to flatten and press the cloth. Therefore, we propose a buttonhole sewing machine to solve the above problems.

Utility Model Content

The utility model aims to provide a buttonhole sewing machine, which can stretch the fabric by moving two smoothing rollers to avoid wrinkles on the fabric, and the fixed frame plate moves downward to press and fix the flattened fabric, so as to achieve the purpose of buttonhole sewing of the fabric through the buttonhole mechanism on the sewing machine.

The above technical purpose of the utility model is achieved through the following technical solutions: a buttonhole sewing machine, comprising a workbench, an L-shaped plate fixedly installed on the top of the workbench, a buttonhole mechanism fixedly installed on the L-shaped plate, two rotating seats rotatably installed on the L-shaped plate, a threaded groove is provided at the bottom of the rotating seat, a threaded rod is threadedly installed in the threaded groove, an adjusting frame plate is fixedly installed at the bottom ends of the two threaded rods, a groove is provided at the bottom of the adjusting frame plate, a rotating shaft is rotatably installed on the front and rear inner walls of the groove, two connecting seats are fixedly installed on the rotating shaft, a smoothing roller is rotatably installed between the two connecting seats, a compression spring is fixedly installed on one side of the connecting seat, the top end of the compression spring is fixedly installed on the adjusting frame plate, and a clamping mechanism is provided on the adjusting frame plate.

By adopting the above technical solution, the cloth can be stretched by moving the two smoothing rollers to avoid wrinkles on the cloth, and the fixed frame moves downward to press and fix the flattened cloth, and the purpose of buttonholeing the cloth can be achieved through the buttonhole mechanism on the sewing machine.

The utility model is further configured as follows: the clamping mechanism includes a guide hole, a T-shaped guide rod and a fixed frame plate, the guide hole is opened on the adjustment frame plate, the T-shaped guide rod is slidably installed in the guide hole, and the bottom ends of multiple T-shaped guide rods are fixedly installed with the same fixed frame plate.

By adopting the above technical solution, through the guide holes and the T-shaped guide rods, it is possible to guide the fixed frame plate in the vertical direction, so that the fixed frame plate can move stably.

The utility model is further configured as follows: the clamping mechanism further comprises a plurality of connecting springs, the bottom ends of the connecting springs are fixedly mounted on the top of the fixed frame plate, and the top ends of the connecting springs are fixedly mounted on the adjusting frame plate.

By adopting the above technical solution, a connecting spring is provided, and the connecting spring can press the fixed frame plate downward. When the adjustment frame plate is reset, the connecting spring can push the fixed frame to reset.

The utility model is further configured as follows: a control box is fixedly installed on the top of the L-shaped plate, and the top of the rotating seat is rotatably installed on the top inner wall of the control box, a synchronization mechanism is provided between the two rotating seats, and a driving motor is fixedly installed on the top of the control box, and the output shaft of the driving motor is fixedly connected to the corresponding rotating seat.

By adopting the above technical solution and providing a driving motor, the driving motor can drive the corresponding rotating seat to rotate through the output shaft.

The utility model is further configured as follows: the synchronization mechanism comprises a sprocket and a chain, the sprocket is fixedly mounted on a rotating seat, and the chain transmission sleeve is arranged on two sprockets.

By adopting the above technical solution and providing a sprocket and a chain, the purpose of synchronous rotation of the two rotating seats can be achieved.

The utility model is further configured as follows: two rotating holes are provided on the L-shaped plate, and the rotating seat is rotatably connected to the corresponding rotating holes; rotating grooves are provided on the front and rear inner walls of the groove, and the rotating shaft is rotatably connected to the corresponding rotating grooves.

By adopting the above technical solution and providing the rotation groove, it is possible to guide the rotation shaft so that the rotation shaft can rotate stably.

The beneficial effects of the utility model are:

(1) Place the garment fabric on the workbench and start the driving motor, which can drive the corresponding rotating seat to rotate. The two rotating seats can rotate synchronously through the cooperation of the sprocket and the chain. The rotating seat drives the adjusting screw and the adjusting frame plate to move downward through the thread groove, and the adjusting frame plate can drive the smoothing roller and the fixed frame plate to move downward;

(2) When the adjusting plate drives the smoothing roller to squeeze downward, the two smoothing rollers are pushed away from each other, thereby flattening the fabric and avoiding wrinkles on the fabric. The adjusting plate drives the fixed frame plate to move downward, so that the flattened fabric can be pressed and fixed, and the purpose of buttonhole formation of the fabric can be achieved through the buttonhole mechanism on the sewing machine.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

FIG1 is a schematic diagram of the three-dimensional structure of a buttonhole sewing machine of the utility model;

FIG2 is a schematic diagram of the front view of a buttonhole sewing machine of the utility model;

Fig. 3 is a schematic diagram of the structure A of a buttonhole sewing machine of the utility model;

FIG. 4 is a schematic diagram of the structure B of a buttonhole sewing machine of the present utility model.

In the figure, 1. workbench; 2. L-shaped plate; 3. keyhole mechanism; 4. rotating seat; 5. threaded groove; 6. threaded rod; 7. adjusting frame plate; 8. groove; 9. rotating shaft; 10. connecting seat; 11. smoothing roller; 12. compression spring; 13. guide hole; 14. T-shaped guide rod; 15. fixed frame plate; 16. connecting spring; 17. control box; 18. driving motor; 19. sprocket; 20. chain.

DETAILED DESCRIPTION

The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" indicates a way of existence, which can be a connection method such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be an intermediate component at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and/or" used herein includes any and all combinations of one or more related listed items.

Referring to Figures 1 to 4, the utility model provides a buttonhole sewing machine, including a workbench 1, an L-shaped plate 2 is fixedly installed on the top of the workbench 1, a buttonhole mechanism 3 is fixedly installed on the L-shaped plate 2, two rotating seats 4 are rotatably installed on the L-shaped plate 2, a threaded groove 5 is provided at the bottom of the rotating seat 4, a threaded rod 6 is installed with a thread in the threaded groove 5, an adjusting frame plate 7 is fixedly installed at the bottom end of the two threaded rods 6, a groove 8 is provided at the bottom of the adjusting frame plate 7, a rotating shaft 9 is rotatably installed on the front and rear inner walls of the groove 8, two connecting seats 10 are fixedly installed on the rotating shaft 9, a smoothing roller 11 is rotatably installed between the two connecting seats 10, a compression spring 12 is fixedly installed on one side of the connecting seat 10, the top end of the compression spring 12 is fixedly installed on the adjusting frame plate 7, and a clamping mechanism is provided on the adjusting frame plate 7.

Specifically, the clamping mechanism includes a guide hole 13, a T-shaped guide rod 14 and a fixed frame plate 15. The guide hole 13 is opened on the adjusting frame plate 7. The T-shaped guide rod 14 is slidably installed in the guide hole 13. The bottom ends of multiple T-shaped guide rods 14 are fixedly installed with the same fixed frame plate 15. The clamping mechanism also includes multiple connecting springs 16. The bottom end of the connecting spring 16 is fixedly installed on the top of the fixed frame plate 15, and the top end of the connecting spring 16 is fixedly installed on the adjusting frame plate 7.

Specifically, a control box 17 is fixedly installed on the top of the L-shaped plate 2, and the top of the rotating seat 4 is rotatably installed on the top inner wall of the control box 17. A synchronization mechanism is provided between the two rotating seats 4. The synchronization mechanism includes a sprocket 19 and a chain 20. The sprocket 19 is fixedly installed on the rotating seat 4, and the chain 20 transmission sleeve is arranged on the two sprockets 19.

Specifically, a driving motor 18 is fixedly mounted on the top of the control box 17 , and an output shaft of the driving motor 18 is fixedly connected to the corresponding rotating seat 4 .

Specifically, two rotating holes are provided on the L-shaped plate 2, and the rotating seat 4 is rotatably connected to the corresponding rotating holes. Rotating grooves are provided on the front and rear inner walls of the groove 8, and the rotating shaft 9 is rotatably connected to the corresponding rotating grooves.

The above is a detailed introduction to a buttonhole sewing machine provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims (8)

1. The buttonhole sewing machine is characterized by comprising a workbench (1), wherein an L-shaped plate (2) is fixedly arranged at the top of the workbench (1), a buttonhole mechanism (3) is fixedly arranged on the L-shaped plate (2), two rotating seats (4) are rotatably arranged on the L-shaped plate (2), a thread groove (5) is formed in the bottom of each rotating seat (4), a threaded rod (6) is arranged in each thread groove (5) in a threaded manner, and an adjusting frame plate (7) is fixedly arranged at the bottom ends of the two threaded rods (6);

The utility model discloses a compression mechanism, including adjusting frame board (7), recess (8) are seted up to the bottom of adjusting frame board (7), rotation is installed on the front side of recess (8) and the rear side inner wall, two connecting seat (10) of fixed mounting on axis of rotation (9), two rotate between connecting seat (10) and install smooth roller (11), one side fixed mounting of connecting seat (10) has compression spring (12), the top fixed mounting of compression spring (12) is on adjusting frame board (7), be equipped with hold-down mechanism on adjusting frame board (7).

2. A buttonholing machine as claimed in claim 1, characterized in that: the compressing mechanism comprises guide holes (13), T-shaped guide rods (14) and fixed frame plates (15), wherein the guide holes (13) are formed in the adjusting frame plates (7), the T-shaped guide rods (14) are slidably mounted in the guide holes (13), and the bottom ends of the T-shaped guide rods (14) are fixedly mounted with the same fixed frame plate (15).

3. A buttonholing machine as claimed in claim 1, characterized in that: the compressing mechanism further comprises a plurality of connecting springs (16), the bottom ends of the connecting springs (16) are fixedly arranged on the top of the fixed frame plate (15), and the top ends of the connecting springs (16) are fixedly arranged on the adjusting frame plate (7).

4. A buttonholing machine as claimed in claim 1, characterized in that: the top of L shaped plate (2) fixed mounting has control box (17), just the top of rotating seat (4) rotates and installs on the top inner wall of control box (17), two be equipped with synchro mechanism between rotating seat (4).

5. A buttonholing machine as claimed in claim 4, characterized in that: the top of the control box (17) is fixedly provided with a driving motor (18), and an output shaft of the driving motor (18) is fixedly connected with the corresponding rotating seat (4).

6. A buttonholing machine as claimed in claim 4, characterized in that: the synchronous mechanism comprises chain wheels (19) and chains (20), wherein the chain wheels (19) are fixedly arranged on the rotating seat (4), and the chains (20) are sleeved on the two chain wheels (19) in a transmission mode.

7. A buttonholing machine as claimed in claim 1, characterized in that: two rotating holes are formed in the L-shaped plate (2), and the rotating seat (4) is connected with the corresponding rotating holes in a rotating mode.

8. A buttonholing machine as claimed in claim 1, characterized in that: the inner walls of the front side and the rear side of the groove (8) are respectively provided with a rotating groove, and the rotating shaft (9) is rotationally connected with the corresponding rotating groove.