Curled edge fixing device for sewing machine

Abstract

The utility model discloses a hemming fixing device for a sewing machine, and relates to the technical field of sewing machines, the hemming fixing device comprises an L-shaped plate, the right side surface of the L-shaped plate is fixedly connected with a fixing plate, a jacking assembly is arranged below the fixing plate, the jacking assembly comprises two sliding grooves formed in the upper surface of the fixing plate, the inner wall of each sliding groove is connected with an L-shaped rod in a sliding mode, and the L-shaped rod is fixedly connected with the L-shaped plate. The left ends of the two L-shaped rods are jointly and fixedly connected with a jacking roller. Through cooperation of the jacking roller, the fixing plate, the L-shaped plate and the arc-shaped pressing plate, by means of the space formed by the jacking roller, the fixing plate and the L-shaped plate, after the side edge of the cloth penetrates through the fixing plate and the L-shaped plate, the cloth can surround the outside of the jacking roller, the cloth can be bent, meanwhile, the arc-shaped pressing plate can press the side edge of the bent cloth, and therefore the cloth can be bent. The side edges of the cloth can be rolled up, the rolled side edges can be fixed, the rolled edges of the cloth can be more uniform, the cloth can be more tidy after being sewn, and therefore the overall appearance and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a crimping fixing device for sewing machines. Background Art

[0002] During the sewing process, the fabric needs to be rolled to ensure that the sides of the fabric are smooth and beautiful after sewing. Usually, the sides of the fabric need to be rolled up manually and then sewn. When rolling the edges, workers need to master certain skills to ensure the flatness of the rolled edges and avoid rolling the edges too tight or too loose, so as not to affect the sewing effect.

[0003] In the current fabric sewing process, in order to achieve hemming sewing, a presser foot is usually installed at the sewing needle of the sewing machine, and then the side of the fabric is pressed manually to ensure the smooth progress of the hemming sewing. When it is necessary to hem a longer fabric, in order to achieve a long-distance hem, the staff needs to use their fingers to roll up and bend the side of the fabric section by section. Due to the length and flexibility limitations of the fingers, this method is difficult to ensure the uniformity of the rolling. After the sewing is completed, the side of the fabric may appear uneven, thereby affecting the overall appearance and quality. To this end, we provide a hem fixing device for a sewing machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a curling fixing device for a sewing machine.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a curling fixing device for a sewing machine, comprising an L-shaped plate, the right side surface of the L-shaped plate is fixedly connected to a fixing plate, a supporting assembly is arranged below the fixing plate, the supporting assembly comprises two sliding grooves opened on the upper surface of the fixing plate, the inner wall of each sliding groove is slidably connected to an L-shaped rod, the left ends of the two L-shaped rods are commonly fixedly connected to a supporting roller, a pressing assembly is arranged below the fixing plate, and a pressing assembly is arranged above the fixing plate.

[0006] Furthermore, the top ends of the two L-shaped rods are commonly fixedly connected to a movable plate, a screw hole is provided on the right side surface of the movable plate, and a screw rod is threadedly connected to the inner wall of the screw hole.

[0007] Furthermore, the left end of the screw rod is rotatably connected to a reinforcement block, and the bottom end of the reinforcement block is connected to the upper surface of the fixing plate.

[0008] Furthermore, the supporting assembly also includes a hanging block fixedly connected to the bottom surface of the fixed plate, a sliding hole is opened on the right side surface of the hanging block, and a sliding rod is slidably connected to the inner wall of the sliding hole.

[0009] Furthermore, the left end of the slide rod is connected to the outer surface of the supporting roller, and the right end of the slide rod passes through the slide hole and extends to the right side of the hanging block.

[0010] Furthermore, the edge pressing assembly includes a threaded hole opened on the upper surface of the fixing plate, the inner wall of the threaded hole is threadedly connected with a threaded rod, and the bottom end of the threaded rod is rotatably connected with an arc-shaped pressing plate.

[0011] Furthermore, the edge pressing assembly also includes a positioning groove opened on the right side of the L-shaped plate, the inner wall of the positioning groove is slidably connected with a positioning block, and the right side of the positioning block is connected to the outer surface of the arc-shaped pressing plate.

[0012] Furthermore, the holding assembly includes a magnetic strip fixedly connected to the upper surface of the fixed plate, a magnetic block is magnetically attracted to the upper surface of the magnetic strip, and a pressure strip plate is fixedly connected to the back side of the magnetic block.

[0013] Compared with the prior art, the crimping fixing device for a sewing machine has the following beneficial effects:

[0014] 1. The utility model cooperates with the supporting assembly, the fixing plate and the L-shaped plate, and can support the cloth by the supporting assembly, so that the side of the cloth can be bent. The side of the cloth after bending can be pressed by the edge pressing assembly, so that the side of the cloth can be rolled up, which is conducive to sewing the side of the cloth and can ensure the appearance and quality after sewing. The side of the cloth before bending can be pressed by the pressing assembly, so as to ensure smooth bending of the cloth.

[0015] 2. The utility model cooperates with the top holding roller, the fixed plate, the L-shaped plate and the arc-shaped pressing plate, and utilizes the space formed by the top holding roller, the fixed plate and the L-shaped plate. When the side edge of the cloth passes through the fixed plate and the L-shaped plate, it will surround the outside of the top holding roller, and the cloth will form a bent shape. At the same time, the arc-shaped pressing plate can press and hold the side edge of the cloth after bending, so that the side edge of the cloth can reach a rolled-up state and can fix the rolled-up side edge, so that the curling of the cloth can be more uniform and more neat after sewing, thereby improving the overall appearance and quality. Through the cooperation of the set magnetic strips, magnetic blocks and the pressure strip plate, the pressure strip plate can be fixed by utilizing the attraction of the magnetic blocks and the magnetic strips, and the pressure strip plate will press and hold the side edge of the cloth, so that the cloth can be slightly bent, which is beneficial to the subsequent bending and curling of the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of a bottom view of a fixing plate of the utility model;

[0018] Figure 3It is a three-dimensional structural schematic diagram of a front cross-sectional view of an L-shaped plate of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of a top view of the pressing and holding assembly of the utility model;

[0020] In the figure: 1. L-shaped plate; 2. fixed plate; 3. holding assembly; 301. slide groove; 302. L-shaped rod; 303. holding roller; 304. movable plate; 305. screw hole; 306. screw rod; 307. reinforcement block; 308. hanging block; 309. slide hole; 310. slide rod; 4. edge pressing assembly; 401. threaded hole; 402. threaded rod; 403. arc pressure plate; 404. position groove; 405. positioning block; 5. holding assembly; 501. magnetic strip; 502. magnetic block; 503. pressure strip plate. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] Embodiment 1: This embodiment provides a curling and fixing device for a sewing machine, which is used for bending and curling the side edge of the cloth before sewing. Through the cooperation of the supporting component 3, the fixing plate 2 and the L-shaped plate 1, the supporting component 3 can be used to support the cloth so that the side edge of the cloth can be bent. Through the edge pressing component 4, the side edge of the cloth after being bent can be pressed, so that the side edge of the cloth can achieve the effect of rolling up, which is beneficial to sewing the side edge of the cloth and can ensure the appearance and quality after sewing.

[0023] See also Figure 1 to Figure 4 , including an L-shaped plate 1, the right side of the L-shaped plate 1 is fixedly connected to a fixing plate 2, when the cloth passes through the space between the bottom surface of the fixing plate 2 and the upper surface of the L-shaped plate 1, the side of the cloth will be bent.

[0024] A supporting assembly 3 is provided below the fixed plate 2, and the supporting assembly 3 includes two slide grooves 301 opened on the upper surface of the fixed plate 2, and the inner wall of each slide groove 301 is slidably connected with an L-shaped rod 302, and the left ends of the two L-shaped rods 302 are commonly fixedly connected with a supporting roller 303. The supporting roller 303 can be used to support the bending part of the cloth, so that the bending part of the cloth can be arc-shaped, and the side of the cloth will sag slightly.

[0025] In order to further adjust the holding force of the holding roller 303 on the fabric when it is bent, the top ends of the two L-shaped rods 302 are fixedly connected to a movable plate 304, a screw hole 305 is provided on the right side of the movable plate 304, a screw hole 305 is threadedly connected to the inner wall of the screw hole 305, and a screw rod 306 is installed at one end of the screw rod 306 to facilitate the staff to rotate the screw rod 306, and by rotating the screw rod 306, the movable plate 304 will drive the L-shaped rod 302 to move, and the position of the holding roller 303 will change, so that the holding force of the holding roller 303 on the fabric when it is bent can be adjusted to prevent the holding roller 303 from causing greater friction on the fabric.

[0026] In order to further ensure the stability when rotating the screw rod 306, the left end of the screw rod 306 is rotatably connected to a reinforcement block 307, and the bottom end of the reinforcement block 307 is connected to the upper surface of the fixed plate 2. The reinforcement block 307 can be used to support and stabilize the other end of the screw rod 306, and can connect the screw rod 306 to the fixed plate 2, thereby ensuring the stability when rotating the screw rod 306.

[0027] In order to further prevent the supporting roller 303 from falling, the supporting assembly 3 also includes a hanging block 308 fixedly connected to the bottom surface of the fixed plate 2, and a sliding hole 309 is opened on the right side of the hanging block 308. A sliding rod 310 is slidably connected to the inner wall of the sliding hole 309. The left end of the sliding rod 310 is connected to the outer surface of the supporting roller 303. The connection between the sliding rod 310, the supporting roller 303 and the sliding hole 309 can form a stable supporting structure for the supporting roller 303.

[0028] Example 2: Figure 1-Figure 3 As shown, in this embodiment, a clamping assembly 4 is provided below the fixed plate 2, and the clamping assembly 4 includes a threaded hole 401 opened on the upper surface of the fixed plate 2, the inner wall of the threaded hole 401 is threadedly connected with a threaded rod 402, and the bottom end of the threaded rod 402 is rotatably connected with an arc-shaped clamping plate 403.

[0029] Furthermore, a turning handle is installed at the top of the threaded rod 402 to facilitate the staff to turn it. When the threaded rod 402 rotates, the threaded rod 402 will push the arc-shaped pressure plate 403 downward, and the degree of pressure of the arc-shaped pressure plate 403 on the cloth can be adjusted. The arc-shaped pressure plate 403 will press the bent side of the cloth, so that the cloth can be rolled up.

[0030] In order to further avoid the position displacement of the arc pressure plate 403, the edge clamping assembly 4 also includes a positioning groove 404 opened on the right side of the L-shaped plate 1, and the inner wall of the positioning groove 404 is slidably connected with a positioning block 405, and the right side of the positioning block 405 is connected to the outer surface of the arc pressure plate 403. The right end of the sliding rod 310 passes through the sliding hole 309 and extends to the right side of the hanging block 308. When the arc pressure plate 403 moves, it will drive the positioning block 405 to slide inside the positioning groove 404, which can stabilize the arc pressure plate 403 to avoid the position displacement of the arc pressure plate 403.

[0031] In order to further facilitate the curling and fixing of the cloth, a pressing component 5 is arranged above the fixed plate 2, and the pressing component 5 includes a magnetic strip 501 fixedly connected to the upper surface of the fixed plate 2, and a magnetic block 502 is magnetically attracted to the upper surface of the magnetic strip 501, and a pressure strip plate 503 is fixedly connected to the back of the magnetic block 502. By utilizing the magnetic attraction between the magnetic strip 501 and the magnetic block 502, the position of the magnetic block 502 and the magnetic strip 501 can be adjusted at will, and at the same time, the position of the pressure strip plate 503 is changed, so that the pressure strip plate 503 can form a preliminary pressing and bending on the cloth, which is beneficial to the curling and fixing of the cloth.

[0032] Working principle: When in use, install the L-shaped plate 1 flush with the sewing platform on the sewing machine, then roll up the side of the cloth to be sewn, and pass the rolled-up side from under the fixed plate 2, and the rolled-up side of the cloth is located outside the supporting roller 303, then rotate the screw rod 306, the movable plate 304 will push the L-shaped rod 302 to move, and at the same time the supporting roller 303 will support the bent part of the side of the cloth, then rotate the threaded rod 402, the threaded rod 402 will drive the arc-shaped pressing plate 403 to descend, and the arc-shaped pressing plate 403 will press the bent side of the cloth again, which can prevent the side of the cloth from warping up, and finally just need to magnetically attract the magnetic block 502 to the appropriate position on the magnetic strip 501, so that the pressure strip plate 503 can form pressure on the rolled-up part of the cloth, which can ensure the uniformity of the cloth rolling up and is conducive to sewing the cloth side after rolling up.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crimping fixing device for a sewing machine, comprising an L-shaped plate (1), characterized in that: The right side surface of the L-shaped plate (1) is fixedly connected to a fixed plate (2), a supporting assembly (3) is arranged below the fixed plate (2), and the supporting assembly (3) comprises two slide grooves (301) opened on the upper surface of the fixed plate (2), the inner wall of each slide groove (301) is slidably connected to an L-shaped rod (302), and the left ends of the two L-shaped rods (302) are commonly fixedly connected to a supporting roller (303), a pressing assembly (4) is arranged below the fixed plate (2), and a pressing assembly (5) is arranged above the fixed plate (2).

2. A crimping fixing device for a sewing machine according to claim 1, characterized in that: The top ends of the two L-shaped rods (302) are fixedly connected to a movable plate (304), a screw hole (305) is provided on the right side of the movable plate (304), and a screw rod (306) is threadedly connected to the inner wall of the screw hole (305).

3. A crimping fixing device for a sewing machine according to claim 2, characterized in that: The left end of the screw rod (306) is rotatably connected to a reinforcement block (307), and the bottom end of the reinforcement block (307) is connected to the upper surface of the fixing plate (2).

4. The hem fixing device for a sewing machine according to claim 1, characterized in that: The supporting assembly (3) further comprises a hanging block (308) fixedly connected to the bottom surface of the fixing plate (2), a sliding hole (309) being provided on the right side surface of the hanging block (308), and a sliding rod (310) being slidably connected to the inner wall of the sliding hole (309).

5. The crimping fixing device for a sewing machine according to claim 4, characterized in that: The left end of the sliding rod (310) is connected to the outer surface of the supporting roller (303), and the right end of the sliding rod (310) passes through the sliding hole (309) and extends to the right side of the hanging block (308).

6. The hem fixing device for a sewing machine according to claim 1, characterized in that: The edge pressing assembly (4) comprises a threaded hole (401) formed on the upper surface of the fixing plate (2); a threaded rod (402) is threadedly connected to the inner wall of the threaded hole (401); and a curved pressing plate (403) is rotatably connected to the bottom end of the threaded rod (402).

7. The hem fixing device for a sewing machine according to claim 1, characterized in that: The edge pressing assembly (4) further comprises a positioning groove (404) formed on the right side of the L-shaped plate (1); a positioning block (405) is slidably connected to the inner wall of the positioning groove (404); and the right side of the positioning block (405) is connected to the outer surface of the arc-shaped pressing plate (403).

8. The hem fixing device for a sewing machine according to claim 1, characterized in that: The holding assembly (5) comprises a magnetic strip (501) fixedly connected to the upper surface of the fixing plate (2), a magnetic block (502) being magnetically attracted to the upper surface of the magnetic strip (501), and a pressure strip plate (503) being fixedly connected to the back surface of the magnetic block (502).

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