Sewing machine automatic feeding device components

Abstract

The present invention provides an automatic material feeding device assembly for a sewing machine, comprising a thin flat plate, a second mounting base plate, an electric eye mounting bracket and an air steel base, wherein the mounting base plate is fixedly mounted on the lower surface of the upper left corner of the thin flat plate, the left end of the mounting base plate extends to the left side of the thin flat plate, and a light rod mounting fixing block is fixedly mounted on the upper surface of the left end of the mounting base plate by screws. Compared with the prior art, the present invention has the following beneficial effects: by arranging electric eyes one and two, the presence of cloth can be detected by conical holes one and two, and then the light rod is driven by the air cylinder, thereby driving the rocking arm to swing periodically, and the cloth passing wheel at the right end of the rocking arm drags the cloth under the feeding slot to the left, thereby realizing automatic material feeding of the sewing machine, and increasing the feeding speed and the stability of the feeding speed.

Description

Technical Field

[0001] The invention relates to an automatic material dispensing device component for a sewing machine, belonging to the field of sewing machines. Background Art

[0002] 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. The sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, and products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm. The sewing speed is fast and the use is easy. It has also spawned art forms such as hand-push embroidery and computer embroidery.

[0003] The traditional feeding mechanism of a sewing machine usually manually drags the fabric into the sewing station. The manual feeding speed is slow and uneven, resulting in the sewn fabric not being neat and beautiful. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide an automatic material dispensing device assembly for a sewing machine to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a sewing machine automatic feeding device assembly includes a thin flat plate, a second mounting base plate, an electric eye mounting bracket and a gas steel base, the lower surface of the upper left corner of the thin flat plate is fixedly mounted with the mounting base plate, the left end of the mounting base plate extends to the left side of the thin flat plate, the upper surface of the left end of the mounting base plate is fixedly mounted with a light rod mounting fixing block by screws, a light rod is movably arranged inside the light rod mounting fixing block, a rocking rod is installed at the front end of the light rod, and a non-rotating rod is arranged between the rocking rod and the light rod. Oil bushing, cloth wheels are installed on the front and rear sides of the right end of the rocker arm through shoulder screws and cloth wheel rubber bands, a polished rod clamping block is installed at the rear end of the polished rod, an oil-free bushing is arranged between the polished rod clamping block and the polished rod, the upper end of the polished rod clamping block is hinged with the piston rod of the cylinder, and pneumatic speed regulating valve joints are arranged at the left and right ends of the cylinder. The right end of the cylinder is hinged on the cylinder base, and the cylinder base is fixedly installed on the upper surface of the thin flat plate through a large hexagonal nut and two hexagonal countersunk screws, and the cylinder base is located behind the second mounting base plate;

[0006] A mounting base plate 2 is installed on the upper surface of the upper left corner of the thin flat plate, and a conical hole 1 and a conical hole 2 are respectively opened at the left and right ends of the mounting base plate, an electric eye mounting bracket is fixedly installed between the conical hole 1 and the conical hole 2 by a hexagon socket cylindrical head screw 4, a large flat washer 2 is installed between the hexagon socket cylindrical head screw 4 and the electric eye mounting bracket, and an electric eye 1 and an electric eye 2 are respectively installed on the left and right sides of the upper end of the electric eye mounting bracket by a hexagon socket cylindrical head screw 3 and a small hexagonal nut, a small flat washer is arranged between the hexagon socket cylindrical head screw 3 and the electric eye mounting bracket, an electric eye fixing plate is arranged between the small hexagonal nut and the electric eye 1 and the electric eye 2, the electric eye 1 and the electric eye 2 are connected to the input end of the control system, and the output end of the control system is connected to the pneumatic speed control valve connector of the cylinder.

[0007] Furthermore, the left end of the rocking arm is locked and fixed by means of a first hexagon socket head screw, and the lower end of the bare rod clamping block is locked and fixed by means of a second hexagon socket head screw.

[0008] Furthermore, a material dispensing trough is provided on the thin flat plate below the rocking arm.

[0009] Furthermore, a cylinder stroke limit block is provided on the piston rod of the cylinder.

[0010] Furthermore, the second mounting base plate is fixedly mounted on the thin flat plate by means of a hexagon socket countersunk screw and a butterfly nut, and a large flat washer is installed between the butterfly nut and the thin flat plate.

[0011] Beneficial effects of the present invention: The automatic material feeding device assembly of the sewing machine of the present invention can detect the presence of fabric through the conical hole one and the conical hole two by setting the electric eye one and the electric eye two, and then drive the light rod through the cylinder, thereby driving the rocking arm to swing periodically, and drag the fabric under the material feeding slot to the left through the cloth passing wheel at the right end of the rocking arm, thereby realizing automatic material feeding of the sewing machine and increasing the material feeding speed and the stability of the material feeding speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 It is an exploded schematic diagram of the automatic material dispensing device assembly of the sewing machine of the present invention;

[0014] Figure 2 It is a structural schematic diagram of the automatic material dispensing device assembly of the sewing machine of the present invention;

[0015] In the figure: 1-thin plate, 2-oil-free bushing, 3-mounting base plate, 4-shoulder screw, 5-polished rod, 6-rocker rod, 7-hexagon socket head screw 1, 8-mounting base plate 2, 9-cloth wheel, 10-hexagon socket countersunk screw 1, 11-polished rod mounting fixing block, 12-hexagon socket head screw 2, 13-polished rod clamping block, 14-large flat washer 1, 15-dish nut, 16-cylinder stroke limit Position block, 17-pneumatic speed control valve connector, 18-cylinder, 19-cylinder base, 20-large hexagon nut, 21-hexagon socket countersunk screw 2, 22-electric eye 1, 23-small flat washer, 24-hexagon socket cylindrical head screw 3, 25-small hexagon nut, 26-electric eye mounting bracket, 27-hexagon socket cylindrical head screw 4, 28-large flat washer 2, 29-electric eye fixing plate, 30-elastic band for cloth wheel. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] See also Figure 1 to Figure 2 The present invention provides a technical solution: a sewing machine automatic feeding device assembly, comprising a thin flat plate 1, a mounting base plate 28, an electric eye mounting bracket 26 and a cylinder base 19, a mounting base plate 3 is fixedly mounted on the lower surface of the upper left corner of the thin flat plate 1, the left end of the mounting base plate 3 extends to the left of the thin flat plate 1, a polished rod mounting fixing block 11 is fixedly mounted on the upper surface of the left end of the mounting base plate 3 by screws, a polished rod 5 is movably arranged inside the polished rod mounting fixing block 11, a rocking rod 6 is installed at the front end of the polished rod 5, an oil-free bushing 2 is arranged between the rocking rod 6 and the polished rod 5, and the right end of the rocking rod 6 Cloth wheels 9 are installed on the front and rear sides through shoulder screws 4 and cloth wheel elastics 30, a polished rod clamping block 13 is installed at the rear end of the polished rod 5, an oil-free bushing 2 is arranged between the polished rod clamping block 13 and the polished rod 5, the upper end of the polished rod clamping block 13 is hinged with the piston rod of the cylinder 18, and the left and right ends of the cylinder 18 are provided with pneumatic speed regulating valve joints 17, the right end of the cylinder 18 is hinged on the cylinder base 19, and the cylinder base 19 is fixedly installed on the upper surface of the thin flat plate 1 through a large hexagonal nut 20 and a hexagon socket countersunk screw 21, and the cylinder base 19 is located behind the mounting base 2 8;

[0018] A mounting base plate 28 is installed on the upper surface of the upper left corner of the thin flat plate 1, and a conical hole 1 and a conical hole 2 are respectively opened at the left and right ends of the mounting base plate 3, and an electric eye mounting bracket 26 is fixedly installed between the conical hole 1 and the conical hole 2 by a hexagon socket cylindrical head screw 4 27, and a large flat washer 28 is installed between the hexagon socket cylindrical head screw 4 27 and the electric eye mounting bracket 26, and an electric eye 1 22 and an electric eye 2 are respectively installed on the left and right sides of the upper end of the electric eye mounting bracket 26 by a hexagon socket cylindrical head screw 3 24 and a small hexagonal nut 25, a small flat washer 23 is arranged between the hexagon socket cylindrical head screw 3 24 and the electric eye mounting bracket 26, and an electric eye fixing plate 29 is arranged between the small hexagonal nut 25 and the electric eye 1 22 and the electric eye 2, the electric eye 1 22 and the electric eye 2 are connected to the input end of the control system, and the output end of the control system is connected to the pneumatic speed control valve connector 17 of the cylinder 18.

[0019] The left end of the rocking arm 6 is locked and fixed by a hexagon socket head screw 7, and the lower end of the light rod clamping block 13 is locked and fixed by a hexagon socket head screw 12, so as to avoid relative sliding between the rocking arm 6 and the light rod clamping block 13 and the light rod 5.

[0020] The thin flat plate 1 below the rocking arm 6 is provided with a material dispensing groove for making the cloth passing wheel 9 directly contact with the cloth.

[0021] A cylinder 18 travel limit block 16 is provided on the piston rod of the cylinder 18 to prevent the cylinder 18 from malfunctioning and causing damage to the device.

[0022] The mounting base plate 8 is fixedly mounted on the thin plate 1 by means of a plurality of hexagon socket countersunk screws 10 and a plurality of butterfly nuts 15. A large flat washer 14 is installed between the butterfly nuts 15 and the thin plate 1 to facilitate manual installation, adjustment and disassembly.

[0023] As an embodiment of the present invention: in actual use, the cloth is manually loaded from the lower right end of the thin plate 1. When the cloth extends to the bottom of the tapered hole 1, the electric eye 22 detects the cloth, and then the control system controls the action of the cylinder 18. The cylinder 18 drives the piston rod to repeatedly extend and retract, thereby driving the light rod clamping block 13 hinged to the piston rod to swing repeatedly. The light rod clamping block 13 drives the light rod 5 to rotate repeatedly within a certain angle range, and then the light rod 5 drives the rocking arm 6 to swing repeatedly, thereby driving the cloth passing wheel 9 at the right end of the rocking arm 6 to move repeatedly. Therefore, the cloth passing wheel 9 periodically drags the cloth located under the material feeding trough, thereby realizing fast, stable and automatic material feeding. When the end of the cloth passes the electric eye 2, the electric eye 2 sends a signal to the control system, and the control system controls the cylinder 18 to stop with a delay, thereby realizing automatic stopping of the device when the cloth sewing is finished.

[0024] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A sewing machine automatic material delivery device assembly, comprising a thin flat plate, a second mounting base plate, an electric eye mounting bracket and a gas steel base, characterized in that: The lower surface of the upper left corner of the thin flat plate is fixedly installed with a mounting base plate, the left end of the mounting base plate extends to the left of the thin flat plate, and the upper surface of the left end of the mounting base plate is fixedly installed with a polished rod mounting fixing block by screws, and a polished rod is movably arranged inside the polished rod mounting fixing block, a rocking arm is installed at the front end of the polished rod, an oil-free bushing is arranged between the rocking arm and the polished rod, and a cloth wheel is installed at the front and rear sides of the right end of the rocking arm through shoulder screws and cloth wheel rubber bands, a polished rod clamping block is installed at the rear end of the polished rod, an oil-free bushing is arranged between the polished rod clamping block and the polished rod, the upper end of the polished rod clamping block is hinged with the piston rod of the cylinder, and pneumatic speed regulating valve joints are arranged at the left and right ends of the cylinder, and the right end of the cylinder is hinged on the cylinder base, and the cylinder base is fixedly installed on the upper surface of the thin flat plate by a large hexagonal nut and two hexagonal countersunk screws, and the cylinder base is located behind the second mounting base plate; A mounting base plate 2 is installed on the upper surface of the upper left corner of the thin flat plate, and a conical hole 1 and a conical hole 2 are respectively opened at the left and right ends of the mounting base plate, an electric eye mounting bracket is fixedly installed between the conical hole 1 and the conical hole 2 by a hexagon socket cylindrical head screw 4, a large flat washer 2 is installed between the hexagon socket cylindrical head screw 4 and the electric eye mounting bracket, and an electric eye 1 and an electric eye 2 are respectively installed on the left and right sides of the upper end of the electric eye mounting bracket by a hexagon socket cylindrical head screw 3 and a small hexagonal nut, a small flat washer is arranged between the hexagon socket cylindrical head screw 3 and the electric eye mounting bracket, an electric eye fixing plate is arranged between the small hexagonal nut and the electric eye 1 and the electric eye 2, the electric eye 1 and the electric eye 2 are connected to the input end of the control system, and the output end of the control system is connected to the pneumatic speed control valve connector of the cylinder.

2. The automatic material dispensing device assembly for a sewing machine according to claim 1, characterized in that: The left end of the rocking arm is locked and fixed by means of a first hexagon socket head screw, and the lower end of the bare rod clamping block is locked and fixed by means of a second hexagon socket head screw.

3. The automatic material dispensing device assembly for a sewing machine according to claim 1, characterized in that: A material dispensing trough is provided on the thin flat plate below the rocking rod.

4. The automatic material dispensing device assembly for a sewing machine according to claim 1, characterized in that: A cylinder stroke limit block is arranged on the piston rod of the cylinder.

5. The automatic material dispensing device assembly for a sewing machine according to claim 1, characterized in that: The second mounting base plate is fixedly mounted on the thin flat plate by means of a hexagon socket countersunk screw and a disc nut, and a large flat washer is mounted between the disc nut and the thin flat plate.

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