Feeding mechanism of sewing machine

Abstract

The utility model belongs to the technical field of sewing machines, and particularly relates to a feeding mechanism of a sewing machine, which comprises a support ring rod, a support frame is arranged below the support ring rod, a rotating ring is rotatably connected to the center of the support frame, a cross rod is mounted on the outer wall of the rotating ring, and a concave frame is mounted at the top end of the cross rod. Two fixing plates are installed on one side of the concave frame, a supporting plate is connected between the two fixing plates in a sliding mode, two adjusting plates are connected to one side of the supporting plate in a sliding mode, and clamping plates are arranged below the adjusting plates; a supporting plate can be erected through a supporting ring rod, a supporting frame, a rotating ring, a concave frame and a fixing plate, an adjusting plate, a clamping plate, a butt joint plate and a receding groove are matched to form an assembly capable of clamping cloth, and the device can adjust the angle between the adjusting plate and a sewing machine; and the sewing position of the cloth can conveniently correspond to the needle head part of the sewing machine, so that the sewing machine is convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of sewing machine technology, specifically relating to a feeding mechanism for a sewing machine. Background Technology

[0002] In the use of sewing machines, the fabric feeding operation is crucial, as it directly affects the quality and efficiency of sewing. Existing sewing machine feeding mechanisms have some shortcomings, among which the most prominent problem is the lack of effective fabric positioning and angle adjustment functions during the fabric feeding process.

[0003] Currently, some feeding mechanisms have slides that cannot accurately fix the position of the fabric, making it prone to wrinkles during feeding. This makes it difficult for the fabric to align with the sewing machine needle, affecting the accuracy and quality of the sewing. Moreover, most existing feeding mechanisms are difficult to adjust the angle between the fabric and the sewing machine flexibly, and cannot effectively position and adjust the fabric according to different sewing needs. This causes great inconvenience to the use of the sewing machine and reduces the efficiency of sewing work. Utility Model Content

[0004] This utility model provides a feeding mechanism for a sewing machine, which solves the problem that existing sewing machine feeding mechanisms are not convenient for effectively positioning and adjusting the angle of the fabric according to sewing needs.

[0005] This utility model provides the following technical solution: It includes a support ring rod, a support frame below the support ring rod, a rotating ring rotatably connected to the center of the support frame, a crossbar installed on the outer wall of the rotating ring, a concave frame installed at the top of the crossbar, two fixed plates installed on one side of the concave frame, a support plate slidably connected between the two fixed plates, two adjusting plates slidably connected to one side of the support plate, a mating plate installed on one side of the support plate, a clearance groove opened on the mating plate, a clamping plate below the adjusting plate, and a screw threadedly connected to one end of the adjusting plate, with the bottom of the screw rotatably connected to the clamping plate.

[0006] The supporting ring rod and the supporting frame are connected by a connecting rod, and the rotating ring is located below the supporting frame.

[0007] The support frame is provided with a slide rail, and a slide rod is slidably connected to the inner wall of the slide rail. A positioning rod is provided above the slide rod.

[0008] The support frame is rotatably connected to a lower adjusting rod, which is threadedly connected to the slide rod. An upper adjusting rod is installed at the bottom of the positioning rod, which is also threadedly connected to the slide rod.

[0009] The adjusting plate is connected to the support plate by a slider, and the inner wall of the support plate is fitted with a locking rod that is slidably connected to the slider.

[0010] The fixed plate has a clearance hole, and a second limiting rod matching the clearance hole is installed on one side of the adjusting plate.

[0011] The adjusting plate has a limiting groove on one side, a limiting block is slidably connected to the inner wall of the limiting groove, and a first limiting rod is installed on one side of the limiting block. The first limiting rod is slidably connected to the inner wall of the clearance hole.

[0012] The beneficial effects of this utility model are: the support plate can be erected by the support ring rod, support frame, rotating ring, concave frame and fixing plate, and together with the adjustment plate, clamping plate, docking plate and relief groove, it forms a component that can clamp the fabric. The device can adjust the angle between the adjustment plate and the sewing machine so that the required sewing position of the fabric can be easily aligned with the sewing machine needle, thereby facilitating the use of the sewing machine.

[0013] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the movement of the concave frame in this utility model;

[0016] Figure 3 This is a schematic diagram of the movement of the support plate in this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the support plate in this utility model.

[0018] In the diagram: 1. Support ring rod; 11. Support frame; 111. Connecting rod; 2. Slide rail; 21. Slide rod; 22. Positioning rod; 23. Upper adjusting rod; 24. Lower adjusting rod; 3. Rotating ring; 31. Crossbar; 32. Concave frame; 33. Fixing plate; 34. Clearance hole; 4. Support plate; 41. Adjusting plate; 411. Sliding block; 412. Clamping rod; 42. Clamping plate; 43. Screw; 44. Limiting groove; 45. Limiting block; 46. First limiting rod; 47. Second limiting rod; 5. Connecting plate; 51. Clearance groove. Detailed Implementation

[0019] Please see Figures 1-4The present invention provides the following technical solution: it includes a support ring rod 1, a support frame 11 is provided below the support ring rod 1, a rotating ring 3 is rotatably connected to the center of the support frame 11, a crossbar 31 is installed on the outer wall of the rotating ring 3, a concave frame 32 is installed at the top of the crossbar 31, two fixing plates 33 are installed on one side of the concave frame 32, a support plate 4 is slidably connected between the two fixing plates 33, two adjusting plates 41 are slidably connected to one side of the support plate 4, a docking plate 5 is installed on one side of the support plate 4, a clearance groove 51 is opened on the docking plate 5, a clamping plate 42 is provided below the adjusting plate 41, a screw 43 is threadedly connected to one end of the adjusting plate 41, and the bottom of the screw 43 is rotatably connected to the clamping plate 42.

[0020] In this implementation scheme: the support ring rod 1 serves as the carrier of the load-bearing device. During use, it supports the outside of the sewing machine. A support frame 11 installed below the support ring rod 1 supports it, with the center of the support frame 11 corresponding to the sewing machine needle. This ensures the center of the support ring rod 1 aligns with the sewing machine needle. The rotating ring 3, rotatably connected to the bottom center of the support frame 11, supports the crossbar 31. As the rotating ring 3 rotates, the position of the concave frame 32 installed at one end of the crossbar 31 can be adjusted, thus adjusting the position of the concave frame 32 outside the sewing machine. Two fixing plates 33 installed on one side of the concave frame 32 support and limit the position of the support plate 4, allowing the support plate 4 to slide between the concave frames 32. This allows the two adjusting plates 41 slidably connected to one side of the support plate 4 to be perpendicular to the concave frame 32, ensuring it remains horizontal with the sewing machine needle. The adjusting plates 41 slide on one side of the support plate 4, allowing the spacing between them to be adjusted appropriately according to the fabric processing position of the sewing machine. After proper adjustment, the clamping plate 42 below the adjusting plate 41 forms a clamping element with the adjusting plate 41, allowing the fabric to be flattened. Then, rotating the screw 43 adjusts the clamping plate 42 to a position below the adjusting plate 41, thus forming a clamping element for the fabric. Under the clamping of the adjusting plate 41 and the clamping plate 42, the fabric is positioned between the adjusting plate 41. Simultaneously, pushing the support plate 4 horizontally pushes the fabric to the sewing machine needle position, preventing fabric wrinkles and ensuring the fabric is sewn in the desired direction. The rotating ring 3 is rotated to adjust the angle between the adjusting plate 41 and the sewing machine, so that the required sewing position of the fabric can be easily aligned with the sewing machine needle, thus facilitating the use of the sewing machine. At the same time, the support plate 4 and the adjusting plate 41 slide between the fixed plate 33 to ensure the horizontal displacement of the fabric. The mating plate 5 supports the fabric between the adjusting plates 41, and the clearance groove 51 makes way for the needle, so that the sewing part is kept perpendicular to the needle under the support of the mating plate 5, ensuring the processing quality of the sewing machine.

[0021] The support ring rod 1 and the support frame 11 are connected by a connecting rod 111, and the rotating ring 3 is located below the support frame 11. The connecting rod 111 is used to connect the support frame 11 so that when the support frame 11 is supported at the bottom of the sewing machine, it can support the position of the support ring rod 1, so that the support ring rod 1 can support the fixed plate 33 and ensure that it remains horizontal, thereby ensuring that it limits the horizontal position of the support plate 4. The rotating ring 3 is located below the support frame 11, so that the crossbar 31 is misaligned with the support frame 11, and the rotating ring 3 can rotate to adjust the position of the concave frame 32.

[0022] The support frame 11 has a slide rail 2, and a slide rod 21 is slidably connected to the inner wall of the slide rail 2. A positioning rod 22 is provided above the slide rod 21. The slide rail 2 on the support frame 11 can install the slide rod 21, so that the slide rod 21 can adjust the position of the positioning rod 22. After the position of the positioning rod 22 is adjusted so that the center of the support frame 11 corresponds to the position of the sewing machine needle, the positioning rod 22 can be controlled to clamp and support the outside of the sewing machine, and its position is limited.

[0023] A lower adjusting rod 24 is rotatably connected to the support frame 11. The lower adjusting rod 24 is threadedly connected to the slide rod 21. An upper adjusting rod 23 is installed at the bottom of the positioning rod 22. The upper adjusting rod 23 is threadedly connected to the slide rod 21. The lower adjusting rod 24, which is rotatably connected to the support frame 11, is threadedly connected to the slide rod 21. When the lower adjusting rod 24 rotates down, the position of the slide rod 21 can be adjusted, thereby adjusting the position of the positioning rod 22 to correspond to the outer part of the sewing machine. With the rotation of the positioning rod 22, the position of the upper adjusting rod 23 on the slide rod 21 can be adjusted, so that the positioning rod 22 can be appropriately adjusted in height to ensure that it corresponds to the outer part of the sewing machine.

[0024] A slider 411 is installed at the connection between the adjusting plate 41 and the support plate 4. A locking rod 412 is installed on the inner wall of the support plate 4 and is slidably connected to the slider 411. The locking rod 412 passes through the slider 411, so that the adjusting plate 41 can slide stably on one side of the support plate 4, and the distance between the adjusting plates 41 can be adjusted appropriately, so that the clamping position of the adjusting plate 41 and the clamping plate 42 on the fabric can be adjusted.

[0025] The fixed plate 33 has a clearance hole 34, and the adjusting plate 41 has a second limiting rod 47 that matches the clearance hole 34 installed on one side. The clearance hole 34 on the fixed plate 33 is used to allow the second limiting rod 47 installed on one side of the adjusting plate 41 to slide on the inner wall of the clearance hole 34, so that the adjusting plate 41 can slide between the fixed plates 33. The second limiting rod 47 has a certain length so that when the position of the adjusting plate 41 is adjusted, the second limiting rod 47 can be supported on the inner wall of the clearance hole 34 to support and limit the position of the adjusting plate 41.

[0026] A limiting groove 44 is provided on one side of the adjusting plate 41. A limiting block 45 is slidably connected to the inner wall of the limiting groove 44. A first limiting rod 46 is installed on one side of the limiting block 45. The first limiting rod 46 is slidably connected to the inner wall of the clearance hole 34. The limiting groove 44 is used to connect and limit the limiting block 45, so that the limiting block 45 can slide on the inner wall of the limiting groove 44. At the same time, the first limiting rod 46 is installed, so that the first limiting rod 46 can slide and limit the clearance hole 34. When the adjusting plate 41 is pushed, the limiting block 45 slides on the inner wall of the limiting groove 44, so that the sliding of the adjusting plate 41 is not limited.

[0027] The working principle and usage process of this utility model are as follows: The support ring rod 1 is placed outside the sewing machine. The support ring rod 1 and the support frame 11 are connected by a connecting rod 111, so that the support frame 11 is located at the bottom of the sewing machine, with its center aligned with the sewing machine needle. Based on the fabric processing position, the distance between the adjusting plates 41 is adjusted using the sliding connection between the slider 411 and the clamping rod 412. The fabric is flattened and placed between the adjusting plate 41 and the clamping plate 42, where it is clamped and fixed. The support plate 4 is pushed, and through the sliding connection between the support plate 4 and the fixing plate 33, and between the adjusting plate 41 and the clearance hole 34, the fabric is horizontally pushed to the needle. If the sewing angle needs to be adjusted, rotate the rotating ring 3 to drive the crossbar 31 and the concave frame 32, change the angle between the adjusting plate 41 and the sewing machine, align the sewing position, and after the fabric is in place and the angle is adjusted, start the sewing machine. The connecting plate 5 supports the fabric, and the clearance groove 51 makes way for the needle, ensuring that the sewing part is perpendicular to the needle and ensuring the processing quality. After sewing is completed, loosen the adjusting plate 41 and the clamping plate 42 and take out the fabric.

Claims

1. A feeding mechanism of a sewing machine comprising a support ring bar (1), characterized in that: The support ring pole (1) is provided with a support frame (11) below, the support frame (11) is rotatably connected with a rotating ring (3) at the center, the rotating ring (3) is provided with a cross bar (31) on the outer wall, the cross bar (31) is provided with a concave frame (32) on the top end, the concave frame (32) is provided with two fixed plates (33) on one side, the two fixed plates (33) are slidably connected with a support plate (4), the support plate (4) is slidably connected with two adjusting plates (41) on one side, the support plate (4) is provided with a butt joint plate (5) on one side, the butt joint plate (5) is provided with a gap slot (51), the adjusting plate (41) is provided with a clamping plate (42) below, the adjusting plate (41) is threadedly connected with a screw rod (43) on one end, and the screw rod (43) is rotatably connected with the clamping plate (42) at the bottom.

2. A thread feeding mechanism for a sewing machine according to claim 1, characterized in that: The support ring pole (1) and the support frame (11) are connected through a connecting rod (111), and the rotating ring (3) is below the support frame (11).

3. A thread feeding mechanism for a sewing machine according to claim 2, wherein: The support frame (11) is provided with a slide (2), and the slide (2) is slidably connected with a slide rod (21) on the inner wall.

4. A thread feeding mechanism for a sewing machine according to claim 3, wherein: The support frame (11) is rotatably connected with a lower adjusting rod (24), and the lower adjusting rod (24) is threadedly connected with the slide rod (21).

5. The thread feeding mechanism of a sewing machine according to claim 1, wherein: The support plate (4) is provided with a slide block (411) on the connecting portion of the adjusting plate (41), and the support plate (4) is provided with a clamping rod (412) which is slidably connected with the slide block (411) on the inner wall.

6. The thread feeding mechanism of a sewing machine according to claim 1, wherein: The fixed plate (33) is provided with a gap hole (34), and the adjusting plate (41) is provided with a second limiting rod (47) which is matched with the gap hole (34) on one side.

7. A thread feeding mechanism for a sewing machine according to claim 6, wherein: The adjusting plate (41) is provided with a limiting slot (44) on one side, the limiting slot (44) is slidably connected with a limiting block (45) on the inner wall, the limiting block (45) is provided with a first limiting rod (46) on one side, and the first limiting rod (46) is slidably connected with the inner wall of the gap hole (34).

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