CN222251280U

CN222251280U - Sewing machine feeding mechanism

Info

Publication number: CN222251280U
Application number: CN202420802188.0U
Authority: CN
Inventors: 杨正高; 高礼新
Original assignee: Jingzhou Gaogao Knitted Clothing Co ltd
Current assignee: Jingzhou Gaogao Knitted Clothing Co ltd
Priority date: 2024-04-17
Filing date: 2024-04-17
Publication date: 2024-12-27
Anticipated expiration: 2034-04-17

Abstract

The utility model relates to the field of sewing machines, and discloses a feeding mechanism of a sewing machine, which comprises a bottom plate, a placing plate, a pressing assembly and a moving assembly, wherein the placing plate is connected to the bottom plate in a sliding manner, the pressing assembly is used for fixing a sewing material on the placing plate, the pressing assembly is used for driving the placing plate to move forwards and backwards and comprises a cylinder with a piston rod connected with a U-shaped piece, and the moving assembly is rotationally connected in the U-shaped piece and is meshed with a first rack on one side and a second rack on the other side, and is meshed with a second rack on one side of a sliding rod. The utility model has the advantages and effects of ensuring the alignment of the sewing stitch, saving manpower and improving the sewing efficiency.

Description

Sewing machine feeding mechanism

Technical Field

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

Background

A sewing machine is a machine that interweaves or sews one or more layers of stitching material by forming one or more stitches on the stitching material with one or more stitching threads. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastics, paper and the like, the sewn stitch is neat, beautiful, flat and firm, the sewing speed is high, the use is simple and convenient, and the hand-push embroidery computerized embroidery and other artistic forms are derived from the stitch, and currently, when some linear materials are sewn, the materials to be sewn are manually moved into a sewing area to be sewn through the sewing machine in the prior art, and the problems of labor waste, easy sewing deflection and low working efficiency exist in the method.

Disclosure of utility model

The utility model aims to provide a feeding mechanism of a sewing machine, which has the effects of solving the technical problems, ensuring that the alignment of sewing stitches does not skew, saving manpower and improving the sewing efficiency.

The technical aim of the utility model is achieved through the following technical scheme that the feeding mechanism of the sewing machine comprises a bottom plate, wherein a sewing machine body is fixedly arranged on the bottom plate, one side of the sewing machine body is slidably connected with a placing plate, a pressing component is arranged on the placing plate, the feeding mechanism further comprises a moving component for driving the placing plate to move forwards and backwards, the moving component comprises a first rack, an air cylinder and a sliding seat, the first rack, the air cylinder and the sliding seat are fixedly arranged on the bottom plate, the sliding seat is provided with two sliding rods, the sliding seat is slidably connected with a second rack, a piston rod of the air cylinder is fixedly connected with a U-shaped piece, a first gear is rotatably connected inside the U-shaped piece, one side of the first gear is meshed with the first rack, and the other side of the first gear is meshed with the second rack.

According to the technical scheme, the sewing material is fixed through the material pressing component, the air cylinder is started again, the air cylinder piston rod drives the first gear to move forwards, and as the two sides of the first gear are meshed with the first gear and the second gear respectively and the first gear is fixed, the first gear rotates, the first gear drives the sliding rod to move forwards when rotating, the moving distance is larger than the stretching distance of the air cylinder piston rod, the length of the air cylinder piston rod can be reduced, the air cylinder piston rod is not limited by a site and is convenient to use and install, the sliding rod moves forwards to drive the placing plate to move forwards, automatic feeding is achieved when the sewing machine body is used for sewing, manpower can be saved, sewing stitches are formed into a straight line, and sewing quality and efficiency can be improved.

The utility model is further provided with two groups of moving components which are respectively positioned at two sides of the placing plate, the side wall of the placing plate is provided with a connecting block, and one end of the sliding rod, which is far away from the air cylinder, is fixedly connected with the connecting block.

Through adopting above-mentioned technical scheme, the slide bar is parallel with placing the board, can be in the same place the slide bar through the connecting block with place the board connection, guarantees that the slide bar freely slides in the slide, and two sets of moving assembly drive place the board and steadily slide.

The utility model is further provided with the pressing assembly comprising L-shaped connecting plates symmetrically arranged on the front side and the rear side of the placing plate, wherein the connecting plates comprise vertical rods, the tops of the vertical rods are connected with cross rods, the cross rods are rotationally connected with screws, the tops of the screws are fixedly provided with gears II, the bottoms of the screws are in threaded connection with pressing plates, one side of each gear II is meshed with a gear III, a sliding groove is formed in the inner side of each vertical rod, and one side of each pressing plate is in sliding connection with the inner wall of each sliding groove.

Through adopting above-mentioned technical scheme, rotate gear three, gear three and gear two meshing drive gear two and rotate, and gear two rotates and drives the screw rod and rotate, and then the clamp plate moves down and compresses tightly, has the fixed stable, the simple to use convenient effect of seam material.

The utility model is further provided with a hand wheel arranged on one side of the gear III, and the hand wheel is used for driving the gear III to rotate.

By adopting the technical scheme, the rotating hand wheel drives the gear III to rotate, and the three-way rotary gear has the advantages of simple structure and economy.

The utility model is further provided with a fixed shaft between two opposite sides of the U-shaped piece, and the gear is rotatably connected on the rotating shaft.

Through adopting above-mentioned technical scheme, through with gear one rotation connect the effect of realizing that gear one rotation is connected in the U type spare on the fixed axle, convenient, high-efficient.

The utility model is further provided with a limiting block fixedly arranged at one end of the sliding rod close to the air cylinder, and the limiting block is used for limiting the sliding rod to be separated from the sliding seat.

Through adopting above-mentioned technical scheme, the stopper sets firmly in the slide bar one end that is close to the cylinder, can prevent that the slide bar from breaking away from the slide when sliding to extreme position.

The utility model is further provided with a fixed block arranged on the bottom plate, and the air cylinder is fixed on the fixed block.

Through adopting above-mentioned technical scheme, can pass through the fixed block with the cylinder and fix on the bottom plate, can also make gear one keep away from the bottom plate a certain distance simultaneously, guarantee gear one and stabilize and rotate, can not take place the jamming.

The utility model is further arranged in that the slide is connected to the base plate by means of screws.

Through adopting above-mentioned technical scheme, pass through the screw fixation with the slide on the floor, easy to assemble and dismantlement.

The utility model is further arranged that the bottom of the pressing plate is provided with a buffer cushion.

By adopting the technical scheme, the seam material can be prevented from being crushed when the pressure of the pressing plate is overlarge.

The utility model is further arranged that the screw is positioned in the middle of the pressing plate.

By adopting the technical scheme, the pressure is uniform when the pressing plate presses the stitching materials, and the stitching materials are prevented from being stressed unevenly to move so as to lead the stitching to incline outwards.

The utility model has the advantages that the air cylinders are arranged on two sides of the placing plate, the piston rods of the air cylinders are fixedly connected with the U-shaped piece, the U-shaped piece is rotationally connected with the first gear, one side of the first gear is meshed with the first rack fixedly arranged on the floor, the other side of the first gear is meshed with the second rack, the second rack is arranged on the sliding rod, the sliding rod is connected in the sliding seat in a sliding manner, the air cylinders stretch to drive the sliding rod to move forwards, the placing plate moves forwards, the automatic feeding of sewing materials of the sewing machine is realized, the moving distance of the placing plate is longer than the stretching distance of the piston rods of the air cylinders, the length of the piston rods of the air cylinders is reduced, the sewing machine is not limited by a field and is convenient to use, the placing plate is provided with the pressing component, the sewing materials are guaranteed to move linearly along with the sliding rod, and sewing quality and sewing efficiency are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic view of a press assembly according to the present utility model.

In the figure, 1, a bottom plate, 2, a sewing machine body, 3, a placing plate, 4, a moving assembly, 41, a rack I, 42, an air cylinder, 43, a sliding seat, 44, a sliding rod, 45, a rack II, 46, a U-shaped piece, 47, a fixed shaft, 5, a pressing assembly, 51, an L-shaped connecting plate, 511, a vertical rod, 512, a cross rod, 52, a screw rod, 53, a pressing plate, 54, a gear II, 55, a gear III, 56, a hand wheel, 6, a limiting block, 7, a fixed block, 8 and a connecting block.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The embodiment, as shown in fig. 1 and 2, a feeding mechanism of a sewing machine comprises a bottom plate 1 fixedly provided with a sewing machine body 2 and a fixing block 7, a placing plate 3 slidingly connected to the bottom plate 1, a pressing assembly 5 for fixing the sewing material on the placing plate 3 and comprising an L-shaped connecting plate 51, a screw 52, a gear two 54, a pressing plate 53, a gear three 55 and a hand wheel 56, wherein the L-shaped connecting plate 51 comprises a vertical plate fixed to the placing plate 3 and a transverse plate fixedly connected to the top end of the vertical plate, a cylinder 42 for driving the placing plate 3 to move forwards and backwards, the cylinder 42 is connected with a U-shaped part 46 and fixed to the fixing plate, a fixing shaft 47 fixedly arranged between two side edges of the U-shaped part 46, a moving assembly 4 of a gear one meshed with a rack one 41 in a rotating mode and connected to the fixing shaft 47 on one side, a rack two 45 meshed with a rack two side of the rack 44, and a connecting block 8 connected to the rack one side of the rack 44 and the placing plate 3, wherein the rack one 41 is fixedly arranged on the bottom plate 1, one side of the cylinder 42 is provided with two sliding bases 43 and 44 fixed to the sliding bases 43 through bolts on the bottom plate 1 in a sliding connection.

The sewing machine has the working principle that firstly, the sewing materials are fixed on the placing plate 3 through the pressing component 5, the hand wheel 56 is rotated, the hand wheel 56 drives the gear III 55 to rotate, the gear III 55 is meshed with the gear II 54 to drive the gear II 54 to rotate, the gear II 54 is rotated to drive the screw 52 to rotate, the pressing plate 53 is further moved downwards to press the sewing materials, the fixing of the sewing materials is realized, then the air cylinder 42 is started, the piston rod of the air cylinder 42 drives the gear 46 to move forwards, and as the first side of the gear is meshed with the first rack 41 and the second rack 45 respectively and the first rack 41 is fixed, the first gear rotates, the first gear drives the slide bar 44 to move forwards when rotating, and further drives the placing plate 3 to move forwards, so that automatic feeding along a straight line when the sewing machine body 2 is sewn is realized, labor is saved, and sewing quality and efficiency are improved.

Specifically, as shown in fig. 1, the moving assembly 4 is provided with two groups of two sides respectively positioned on the two sides of the placing plate 3, the side wall of the placing plate 3 is provided with a connecting block 8, one end, away from the air cylinder 42, of the sliding rod 44 is fixedly connected with the connecting block 8, and the placing plate 3 can be driven to slide stably.

Specifically, as shown in fig. 1, a stopper 6 is fixed at one end of the sliding rod 44 near the air cylinder 42, and the stopper 6 can be used for restricting the sliding rod 44 from being separated from the sliding seat 43.

Specifically, as shown in fig. 1, a cushion pad is arranged at the bottom of the pressing plate 53, so that the pressure of the pressing plate 53 can be relieved, and the seam material can be protected.

Specifically, as shown in fig. 2, the screw 52 is located in the middle of the pressing plate 53, so that the pressing pressure of the pressing plate 53 is uniform when the stitching material is pressed, and the stitching material moves along a straight line.

Claims

1. The feeding mechanism of the sewing machine is characterized by comprising a bottom plate (1), wherein a sewing machine body (2) is fixedly arranged on the bottom plate (1), a placing plate (3) is connected to one side of the sewing machine body (2) in a sliding manner, a pressing component (5) is arranged on the placing plate (3), the feeding mechanism further comprises a moving component (4) which drives the placing plate (3) to move back and forth, the moving component (4) comprises a first rack (41), an air cylinder (42) and a sliding seat (43) which are fixedly arranged on the bottom plate (1), the sliding seat (43) is provided with two sliding rods (44) which are positioned on the same side of the first rack (41), a second rack (45) is arranged on one side of the sliding seat (43) in a sliding manner, a piston rod of the air cylinder (42) is fixedly connected with a U-shaped piece (46), and the U-shaped piece (46) is internally and rotatably connected with a first gear, one side of the first gear is meshed with the first rack (41), and the other side of the first gear is meshed with the second rack (45).

2. The feeding mechanism of a sewing machine according to claim 1, wherein the moving assembly (4) is provided with two groups of connecting blocks (8) respectively positioned on two sides of the placing plate (3), the side wall of the placing plate (3) is provided with the connecting blocks (8), and one end of the sliding rod (44) far away from the air cylinder (42) is fixedly connected with the connecting blocks (8).

3. The feeding mechanism of the sewing machine of claim 2, wherein the pressing assembly (5) comprises L-shaped connecting plates (51) symmetrically arranged on the front side and the rear side of the placing plate (3), each connecting plate comprises a vertical rod (511), a cross rod (512) is connected to the top of each vertical rod (511), a screw rod (52) is rotationally connected to each cross rod (512), a gear II (54) is fixedly arranged at the top end of each screw rod (52), a pressing plate (53) is connected to the bottom of each screw rod in a threaded manner, gears III (55) are meshed on one side of each gear II (54), a sliding groove is formed in the inner side of each vertical rod (511), and one side of each pressing plate (53) is slidably connected to the inner wall of each sliding groove.

4. A feeding mechanism of a sewing machine according to claim 3, wherein a hand wheel (56) is arranged on one side of the third gear (55), and the hand wheel (56) is used for driving the third gear (55) to rotate.

5. A feeding mechanism for sewing machine according to claim 1, wherein a fixed shaft (47) is provided between the opposite sides of the U-shaped member (46), and the gear is rotatably connected to the rotating shaft.

6. The feeding mechanism of a sewing machine according to claim 1, wherein a limiting block (6) is fixedly arranged at one end of the sliding rod (44) close to the air cylinder (42), and the limiting block (6) is used for limiting the sliding rod (44) to be separated from the sliding seat (43).

7. A feeding mechanism for a sewing machine according to claim 1, wherein the base plate (1) is provided with a fixing block (7), and the cylinder (42) is fixed on the fixing block (7).

8. A feeding mechanism for sewing machine according to claim 1, wherein the slider (43) is screwed to the base plate (1).

9. A feeding mechanism for a sewing machine according to claim 3, wherein the bottom of the pressing plate (53) is provided with a cushion pad.

10. A feeding mechanism for a sewing machine according to claim 3, wherein the screw (52) is located in the middle of the presser plate (53).