CN220846525U - A protective mechanism for a patchwork sewing machine - Google Patents

Abstract

The utility model relates to the field of sewing machines and discloses a protection mechanism of a seam sewing machine, which comprises a processing table, wherein a movable groove is formed in the front side and the rear side of the top of the processing table, a protection bottom plate is arranged at the top of the processing table, idler wheels are arranged at four corners of the bottom of the protection bottom plate, and the idler wheels are movably arranged on the inner side of the movable groove; the protection assembly is arranged on the protection bottom plate and comprises a swivel seat, a rotating shaft, a torsion spring, a pressing plate, an embedded block, a connecting plate, a clamping plate, a fixing seat and a connecting column. The utility model has the following advantages and effects: the pressing plate is opened through the rotation, the operation is simple, the locking structure of the opposite pressing plate is arranged, the stability of the pressing plate when the clothes are pressed can be guaranteed, the sewing effect is guaranteed, the locking effect of the pressing plate when the pressing plate is pressed down can be guaranteed by utilizing the friction force of the embedded block and the embedded groove, the pulling force applied by hands of a person is relieved through the elasticity of the torsion spring when the pressing plate needs to be opened, and the using convenience of the mechanism is further improved.

Description

A protective mechanism for a patchwork sewing machine

Technical Field

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

Background technique

A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing materials are interwoven or sewn together. A sewing machine can sew fabrics such as cotton, linen, silk, wool, and artificial fibers, and products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm, and the sewing speed is fast and easy to use.

Announcement No. CN210856594U discloses a protective mechanism of a shoemaking sewing machine, including a processing table, the upper end surface of the processing table is provided with a slide groove, the bottom end surface of the slide groove is provided with a limit groove, a lower pressing plate is slidably connected in the slide groove, a needle groove is provided at the center of the upper end surface of the lower pressing plate, an upper pressing plate is provided on the upper end surface of the lower pressing plate, a U-shaped hole is provided on the upper of the upper pressing plate, the U-shaped hole corresponds to the needle groove, and a slide hole is provided at the right end of the upper pressing plate;

As described in the reference document, this type of protective mechanism can protect the user's hands during sewing to reduce the risk of injury to the user. However, its structural operation adopts a two-column guide, which makes it more laborious for the user to lift the upper pressing plate from one side, and the upper pressing plate is limited by a combination of a spring and a magnet when pressing the fabric. This type of limit is not firm enough and is easy to dislocate when the force is large. Moreover, if the spring elastic force or the magnet suction force is increased to increase the pressing force, it will increase the difficulty of the user to lift the upper pressing plate, making the protective mechanism inconvenient to use and there is still room for improvement.

Therefore, it is necessary to design a protective mechanism for a seam sewing machine which is easy to lift and reliable to press.

Utility Model Content

The utility model aims to provide a protective mechanism for a patchwork sewing machine, which has the advantages of convenient lifting and reliable pressing.

The above technical objectives of the utility model are achieved through the following technical solutions: including:

A processing table, wherein movable grooves are provided on the front and rear sides of the top of the processing table, a protective bottom plate is provided on the top of the processing table, and rollers are provided at the four corners of the bottom of the protective bottom plate, and the rollers are movably installed on the inner side of the movable groove;

A protection component is installed on the protection base plate, and the protection component includes a swivel seat, a rotating shaft, a torsion spring, a pressure plate, an insert, a connecting plate, a clamping plate, a fixing seat and a connecting column.

The utility model is further configured as follows: the swivel seat is fixedly mounted on the top rear side of the protective base plate, the shaft is rotatably mounted between the left and right inner walls of the swivel seat, the torsion spring is sleeved on the outside of the shaft, one end of the torsion spring is fixedly mounted on the outside of the shaft, one end of the torsion spring is fixedly mounted on the inner wall of one side of the swivel seat, the pressure plate is fixedly mounted on the outside of the shaft, the insert is fixedly mounted on the left and right sides of the bottom of the pressure plate, the connecting plate is fixedly mounted on the top of the pressure plate, the clamping plate is slidably mounted on the connecting plate, the fixed seat is fixedly mounted on the front side of the protective base plate, and the connecting column is arranged on the fixed seat.

By adopting the above technical solution, the cloth can be pressed and unlocked easily.

The utility model is further configured as follows: embedding grooves are provided on the left and right sides of the top of the protective bottom plate, a handle is provided on the front side of the protective bottom plate, and a square groove is provided on the front side of the handle.

By adopting the above technical solution, it is convenient to pull the protective bottom plate to move.

The utility model is further configured as follows: a U-shaped groove is provided on the top of the pressing plate, and a fixing hole is provided on one side of the pressing plate.

By adopting the technical solution, the cloth can be easily sewn.

The utility model is further configured as follows: a slot is provided on the top of the fixing seat, and a threaded hole is provided on the front side of the fixing seat.

By adopting the above technical solution, it is convenient to fix the clamping plate.

The utility model is further configured as follows: the connecting column is threadedly connected to the inner side of the threaded hole, a clamping hole is opened on the front side of the clamping plate, and the inner diameter of the clamping hole is larger than the maximum inner diameter of the threaded hole.

By adopting the above technical solution, the connection column can be easily passed through.

The utility model is further configured as follows: a slide groove is provided on the top of the connecting plate, the clamping plate is slidably installed on the inner side of the slide groove and the slot, and a limit plate is provided on the top of the clamping plate.

By adopting the above technical solution, the card board can be easily slid up and down.

The beneficial effects of the utility model are:

1. The utility model opens the pressing plate by rotating, which is easy to operate, and is provided with a locking structure for the pressing plate, which can ensure the stability of the pressing plate when pressing clothes, so as to ensure the sewing effect.

2. The utility model utilizes the friction between the embedding block and the embedding groove to ensure the locking effect when the pressure plate is pressed down. At the same time, when the pressure plate needs to be opened, the elastic force of the torsion spring can reduce the pulling force applied by the hand, further improving the convenience of use of the mechanism.

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 structural diagram of a protective mechanism of a patchwork sewing machine proposed by the present invention.

FIG. 2 is a partial structural schematic diagram of a protective mechanism of a patchwork sewing machine proposed in the utility model.

FIG. 3 is a schematic structural diagram of part A in FIG. 2 .

FIG. 4 is a schematic structural diagram of part B in FIG. 2 .

In the figure, 1, processing table; 2, protective bottom plate; 3, swivel seat; 4, rotating shaft; 5, torsion spring; 6, U-shaped groove; 7, pressure plate; 8, embedding block; 9, connecting plate; 10, clamping plate; 11, fixing seat; 12, connecting column.

Detailed ways

Referring to Figures 1 to 4, the utility model provides a protective mechanism for a patchwork sewing machine, including a processing table 1, wherein movable grooves are provided on the front and rear sides of the top of the processing table 1, and the movable grooves can guide the rollers to reduce the friction of the movement of the protective base plate 2. The top of the processing table 1 is provided with a protective base plate 2, and the four bottom corners of the protective base plate 2 are provided with rollers, which are movably installed on the inner side of the movable groove; a protective component, which is installed on the protective base plate 2, and the protective component includes a swivel seat 3, a rotating shaft 4, a torsion spring 5, a pressure plate 7, an insert 8, a connecting plate 9, a clamping plate 10, a fixing seat 11 and a connecting column 12.

Specifically, the swivel seat 3 is fixedly mounted on the top rear side of the protective base plate 2, the shaft 4 is rotatably mounted between the left and right inner walls of the swivel seat 3, the torsion spring 5 is sleeved on the outside of the shaft 4, and the torsion spring 5 can facilitate the rotation and reset of the pressure plate 7. One end of the torsion spring 5 is fixedly mounted on the outside of the shaft 4, and one end of the torsion spring 5 is fixedly mounted on the inner wall of one side of the swivel seat 3. The pressure plate 7 is fixedly mounted on the outside of the shaft 4, and the embedded block 8 is fixedly mounted on the left and right sides of the bottom of the pressure plate 7. The two ends of the embedded block 8 are arc transition surfaces to avoid interference with the embedded groove. The connecting plate 9 is fixedly mounted on the top of the pressure plate 7, and the clamping plate 10 is slidably mounted on the connecting plate 9. The clamping plate 10 is used to fix the current position of the pressure plate 7. The fixed seat 11 is fixedly mounted on the front side of the protective base plate 2, and the connecting column 12 is arranged on the fixed seat 11. The connecting column 12 is used to lock the clamping plate 10.

Specifically, embedding grooves are provided on the left and right sides of the top of the protective base plate 2, a handle is provided on the front side of the protective base plate 2, and a square groove is provided on the front side of the handle. The embedding groove can facilitate the insertion of the embedding block 8, and the square groove can facilitate the adjustment of the connecting column 12.

Specifically, a U-shaped groove 6 is provided on the top of the pressing plate 7 , and a fixing hole is provided on one side of the pressing plate 7 . The U-shaped groove 6 allows the sewing structure to pass through, and the fixing hole allows the rotating shaft 4 to be connected and fixed to the pressing plate 7 .

Specifically, a slot is provided at the top of the fixing seat 11 , and a threaded hole is provided at the front side of the fixing seat 11 . The slot allows the card plate 10 to pass through, and the threaded hole allows the connecting column 12 to be installed.

Specifically, the connecting column 12 is threadedly connected to the inner side of the threaded hole, and a clamping hole is opened on the front side of the clamping plate 10. The inner diameter of the clamping hole is larger than the maximum inner diameter of the threaded hole. The clamping hole can facilitate the connecting column 12 to limit the clamping plate 10.

Specifically, a slide groove is provided on the top of the connecting plate 9, and the card plate 10 is slidably installed on the inner side of the slide groove and the slot. A limit plate is provided on the top of the card plate 10, and the limit plate can facilitate pulling the card plate 10 up and down.

The locking mechanism of the stitching sewing machine provided by the utility model can be opened by rotating the pressing plate 7, which is easy to operate and is provided with a locking structure for the pressing plate 7, which can ensure the stability of the pressing plate 7 when pressing the clothes to ensure the sewing effect, and the friction between the embedding block 8 and the embedding groove can ensure the locking effect when the pressing plate 7 is pressed down, and the elastic force of the torsion spring 5 can be used to reduce the pulling force applied by the hand when the pressing plate 7 needs to be opened, thereby further improving the convenience of use of the mechanism. The specific operation is that when it is necessary to sew cloth, the cloth is placed on the top of the protective bottom plate 2, and the handle is pulled to make the pressing plate 7 drive the rotating shaft 4 to rotate and press down until the cloth is pressed, and at the same time, the embedding block 8 is stuck in the embedding groove, and at the same time, the torsion spring 5 is driven to deform and store elastic force, and then the card plate 10 is inserted downward to make it inserted into the fixing seat 11, and the connecting column 12 is rotated to make it move into the card hole through threaded cooperation, and the card plate 10 is limited, and then the protective bottom plate 2 is pulled by the handle to move to the bottom of the sewing structure for sewing.

Claims (7)

1. A protective mechanism for a patchwork sewing machine, characterized by comprising: A processing table (1), wherein movable grooves are provided at the front and rear sides of the top of the processing table (1), a protective bottom plate (2) is provided at the top of the processing table (1), and rollers are provided at the four corners of the bottom of the protective bottom plate (2), and the rollers are movably mounted on the inner side of the movable groove; A protection component is installed on a protection base plate (2), and comprises a rotating seat (3), a rotating shaft (4), a torsion spring (5), a pressure plate (7), an insert (8), a connecting plate (9), a clamping plate (10), a fixing seat (11) and a connecting column (12). 2. A protective mechanism for a patchwork sewing machine according to claim 1, characterized in that the swivel seat (3) is fixedly mounted on the top rear side of the protective base plate (2), the rotating shaft (4) is rotatably mounted between the left and right inner walls of the swivel seat (3), the torsion spring (5) is sleeved on the outside of the rotating shaft (4), one end of the torsion spring (5) is fixedly mounted on the outside of the rotating shaft (4), one end of the torsion spring (5) is fixedly mounted on the inner wall of one side of the swivel seat (3), the pressing plate (7) is fixedly mounted on the outside of the rotating shaft (4), the insert (8) is fixedly mounted on the left and right sides of the bottom of the pressing plate (7), the connecting plate (9) is fixedly mounted on the top of the pressing plate (7), the clamping plate (10) is slidably mounted on the connecting plate (9), the fixed seat (11) is fixedly mounted on the front side of the protective base plate (2), and the connecting column (12) is arranged on the fixed seat (11). 3. A protective mechanism for a patchwork sewing machine according to claim 1, characterized in that grooves are provided on the left and right sides of the top of the protective base plate (2), a handle is provided on the front side of the protective base plate (2), and a square groove is provided on the front side of the handle. 4. A protective mechanism for a patchwork sewing machine according to claim 2, characterized in that a U-shaped groove (6) is provided on the top of the pressing plate (7), and a fixing hole is provided on one side of the pressing plate (7). 5. A protective mechanism for a patchwork sewing machine according to claim 4, characterized in that a slot is provided on the top of the fixing seat (11), and a threaded hole is provided on the front side of the fixing seat (11). 6. A protective mechanism for a patchwork sewing machine according to claim 5, characterized in that the connecting column (12) is threadedly connected to the inner side of the threaded hole, and a clamping hole is opened on the front side of the clamping plate (10), and the inner diameter of the clamping hole is larger than the maximum inner diameter of the threaded hole. 7. A protective mechanism for a patchwork sewing machine according to claim 6, characterized in that a slide groove is provided on the top of the connecting plate (9), the clamping plate (10) is slidably installed on the inner side of the slide groove and the slot, and a limit plate is provided on the top of the clamping plate (10).