Double-side asynchronous automatic overedger equipment and double-side asynchronous automatic overedger method

Abstract

The invention discloses a double-side asynchronous automatic overedger device and method, and relates to the field of overedgers, the double-side asynchronous automatic overedger device comprises a workbench, the output end of a telescopic cylinder is connected with a pressing spreading part, and a one-way shifting part is arranged on a first connecting cylinder. By arranging a pressing spreading part, when a telescopic air cylinder stretches, a spreading connecting plate and a pressing plate press one part of cloth through extrusion guide of a guide sliding rail, and at the moment, an aqueous solution in a first connecting cylinder enters a second connecting cylinder along with extrusion of a third piston rod; a second movable contact piece is in contact with a second static contact piece, so that a fan and a motor are powered on to operate, the fan sprays out airflow through an exhaust bin, and the airflow sprayed out of the exhaust bin can longitudinally spread out the cloth; in this way, the situation that the overlock effect is affected due to wrinkles of the cloth can be prevented, and meanwhile the labor intensity of workers is relieved.

Description

Technical Field

[0001] The invention relates to the field of overlock sewing machines, in particular to an automatic overlock sewing machine device and method for double-sided asynchronous sewing. Background Art

[0002] The overlock sewing machine is also called the edge sewing machine. The edge sewing machine is generally divided into three-line, four-line, and five-line. The main function is generally to prevent the seams of clothing from pilling. The overlock sewing machine can not only be used for edge sewing, but also for sewing T-shirts, sportswear, underwear, knitwear and other fabrics. In order to improve the efficiency of edge sewing, two sewing machines will be set up to sew both sides of the cloth.

[0003] Nowadays, when using an overlock sewing machine, the staff is required to place the cloth on the workbench, and then move the cloth to the bottom of the sewing device for overlock sewing through the operation of the pressing plate and the driving device. However, in order to prevent wrinkles between the cloths, the staff is required to manually spread the cloth placed on the workbench, which not only increases the labor intensity of the staff, but also reduces the overall overlock sewing efficiency of the equipment. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic double-sided asynchronous overlock sewing machine device and method in order to solve the problem that it is inconvenient to spread the placed cloth, which causes the cloth to wrinkle and affects the overlock effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic double-sided asynchronous overlock sewing machine device, comprising a workbench, a driving device is installed on one side of the workbench, a moving device located above the workbench is arranged on the driving device, a pressing plate is connected to the bottom end of the moving device, a first sewing machine is arranged on the side of the workbench away from the driving device, a second sewing machine is arranged on the side of the first sewing machine, a side connecting frame arranged side by side with the first sewing machine is installed on the side of the workbench away from the driving device, an L-shaped support frame is installed on the end of the side connecting frame away from the driving device, a telescopic cylinder is installed at the bottom of the L-shaped support frame, an output end of the telescopic cylinder is connected to a pressure spreading member, a first connecting tube is installed on the top of the L-shaped support frame, a one-way shifting member is arranged on the first connecting tube, and the telescopic cylinder is connected to a connecting block via the pressure spreading member.

[0006] As a further solution of the present invention: the cloth is first placed on the top of the workbench, and then the telescopic cylinder is started, and the connecting block is moved to the top of the cloth by the extension of the telescopic cylinder and the cooperation of the pressure-positioning and spreading piece, and then the cloth is spread by the operation of the pressure-positioning and spreading piece, and then the connecting block is moved to the initial position by the contraction of the telescopic cylinder, and when the telescopic cylinder is fully contracted, the pressure-positioning and spreading piece is restored by the operation of the one-way shifting piece, and then the pressure plate is pressed on the spread cloth by the cooperation of the driving device and the moving device, and at the same time the cloth is moved to the bottom of the first sewing machine and the second sewing machine, and then the cloth is overlocked by the operation of the first sewing machine and the second sewing machine.

[0007] As a further solution of the present invention: the pressure spreading member includes a guide rail connected to the output end of the telescopic cylinder, the guide rail is composed of a vertical section and an inclined section, a movable sleeve block is movably sleeved on the side connecting frame, and the movable sleeve block is slidably connected to the inner side of the guide rail near the side of the L-shaped support frame, a support guide frame is installed on the top of the movable sleeve block, a third connecting cylinder is provided on the top of the support guide frame, a T-shaped movable plate is movably sleeved on the support guide frame, a first return spring connected to the T-shaped movable plate is provided on the outer wall of the third connecting cylinder, a first static contact piece is installed on the inner side of the support guide frame, a first moving contact piece located above the first static contact piece is installed at the bottom of the T-shaped movable plate, a first piston rod extending to the inner side of the third connecting cylinder is provided on the top of the T-shaped movable plate, a third piston rod extending to the bottom of the first connecting cylinder is inserted into the inner side of the first connecting cylinder, a fourth return spring connected to the bottom of the first connecting cylinder is provided on the third piston rod, the connecting block is connected to the T-shaped movable plate, a mounting frame is installed on the top of the connecting block, and the top of the mounting frame is provided A second connecting cylinder is arranged, a second piston rod is inserted in the interior of the second connecting cylinder, a supporting plate is installed at the bottom of the second piston rod, a second return spring connected to the mounting frame is arranged on the top of the supporting plate, oblique connecting guide rods are rotatably connected to the two sides of the supporting plate through a rotating shaft, a pressure plate is fixed at the bottom of the connecting block, a spreading connecting plate connected to the oblique connecting guide rod is slidably connected to the connecting block, a motor is installed on one side of the connecting block, an exhaust bin is connected to the output end of the motor, a fan connected to the T-shaped movable plate is sleeved at one end of the exhaust bin, a connecting bin is arranged on the side of the connecting block away from the exhaust bin, a push rod is inserted in the interior of the connecting bin, a third return spring connected to the connecting bin is arranged at one end of the push rod, a second moving contact piece located on the inner side of the connecting bin is installed at one end of the push rod, a second static contact piece is installed on the inner wall of the connecting bin, a first connecting hose connected to the third connecting cylinder is arranged at the top of the first connecting cylinder, a solenoid valve is arranged at the top of the second connecting cylinder, and a second connecting hose connected to the top of the first connecting cylinder is arranged at one end of the solenoid valve.

[0008] As a further solution of the present invention: the solenoid valve is electrically connected to the first stationary contact piece through a wire, and the first moving contact piece is electrically connected to an external power supply through a wire.

[0009] As a further solution of the present invention: the fan, the motor and the second moving contact piece are connected in series via a wire, and the second stationary contact piece is electrically connected to an external power supply via a wire.

[0010] As a further solution of the present invention: the spreading connecting plate is flush with the bottom of the pressure plate.

[0011] As a further scheme of the present invention: the one-way shifting member includes a third connecting hose installed on the top of the second connecting cylinder and located on one side of the solenoid valve, one end of the third connecting hose is provided with a one-way valve connected to the first connecting cylinder, a limiting block is installed on the outer wall of the first connecting cylinder, a positioning plate located above the limiting block is installed on the outer wall of the first connecting cylinder, a positioning plate connected to the third piston rod is inserted on the inner side of the limiting block, a locking hole is provided on the positioning plate, a locking pin is inserted on the side of the limiting block away from the first connecting cylinder, a fifth return spring connected to the limiting block is provided on the locking pin, a connecting block is fixed on the side of the locking pin away from the limiting block, a rotating roller is connected to the inner side of the connecting block, a limiting plug rod is inserted on the positioning plate, a trapezoidal extrusion block is installed on the bottom of the limiting plug rod, an L-shaped connecting rod is provided on the bottom of the trapezoidal extrusion block, and a sixth return spring connected to the bottom of the positioning plate is provided on the limiting plug rod.

[0012] As a further solution of the present invention: the liquid discharge end of the one-way valve is connected to the first connecting tube, and the liquid inlet end of the one-way valve is connected to the third connecting hose.

[0013] As a further solution of the present invention: the diameters of the locking pin and the locking pin are equal, and the end of the locking pin close to the locking hole is rotatably connected to the inclined surface of the ball trapezoidal extrusion block close to the side of the connecting roller through a rotating shaft, and the trapezoidal extrusion block is located between the connecting roller and the locking pin.

[0014] The present invention also discloses an automatic double-sided asynchronous overlock sewing method, which adopts the automatic double-sided asynchronous overlock sewing machine equipment, comprising the following steps:

[0015] S1: First, place the fabric on the top of the workbench, then start the telescopic cylinder, and move the connecting block to the top of the fabric through the extension of the telescopic cylinder and the cooperation of the pressure spreading piece;

[0016] S2: Spreading the fabric by the operation of the pressure spreading member;

[0017] S3: The connecting block is moved to the initial position by contracting the telescopic cylinder;

[0018] S4: When the telescopic cylinder is fully retracted, the pressure spreading member is restored through the operation of the one-way shifting member, and then the pressure plate is pressed on the spread fabric through the coordinated operation of the driving device and the moving device, and the fabric is moved to the bottom of the first sewing machine and the second sewing machine, and then the fabric is sewn through the operation of the first sewing machine and the second sewing machine.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting a pressure spreading piece, when the telescopic cylinder is extended, the spreading connecting plate and the pressure plate are pressed on a part of the fabric through the extrusion guide of the guide rail. At this time, the aqueous solution inside the first connecting tube will enter the second connecting tube with the extrusion of the third piston rod. At this time, the supporting plate moves the spreading connecting plate to the side away from the pressure plate through the oblique connecting guide rod, so that the spreading connecting plate can spread one end of the fabric. At the same time, the second moving contact piece contacts the second static contact piece, so that the fan and the motor are powered on, so that the fan sprays the airflow through the exhaust bin, and at the same time, the exhaust bin is driven by the motor to rotate clockwise, so that the airflow sprayed from the exhaust bin can be longitudinally spread on the fabric, so that the fabric can be prevented from wrinkling and affecting the sewing effect, and the labor intensity of the staff is also reduced;

[0021] 2. By setting a one-way shifting piece, as the telescopic cylinder squeezes the third piston rod, the locking pin is inserted into the locking hole under the action of the elastic restoring force of the fifth reset spring, so as to realize the positioning of the card plate and the third piston rod. When the telescopic cylinder is fully contracted, the output end of the telescopic cylinder will press the bottom of the L-shaped connecting rod. At this time, the trapezoidal extrusion block will drive the locking pin to move through the rotating connecting roller to make the connecting block separate from the locking pin and the locking hole. After that, the third piston rod can be restored under the action of the fourth reset spring. At this time, the aqueous solution inside the second connecting tube and the third connecting tube will pass into the first connecting tube, so that the spreading connecting plate can be separated from the cloth and then reset, so as to realize the one-way spreading of the cloth by the spreading connecting plate and the exhaust chamber, and prevent the spreading connecting plate from moving the cloth when restoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the side connecting frame and the first connecting tube of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between the second connecting tube and the third connecting tube of the present invention;

[0025] Figure 4It is a schematic diagram of the connection between the first stationary contact piece and the first moving contact piece of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection between the connecting block and the second connecting tube of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the second connecting tube of the present invention;

[0028] Figure 7 This is a schematic diagram of the internal structure of the connection bin of the present invention;

[0029] Figure 8 It is a schematic diagram of the connection between the first connecting tube and the L-shaped connecting rod of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection between the positioning plate and the limiting block of the present invention;

[0031] Fig.10 It is a schematic diagram of the connection between the locking plate and the locking pin of the present invention.

[0032] In the figure: 1, workbench; 2, driving device; 3, moving device; 4, pressing plate; 5, first sewing machine; 6, second sewing machine; 7, side connecting frame; 801, movable sleeve block; 802, guide slide rail; 8021, vertical section; 8022, inclined section; 803, first connecting cylinder; 804, first connecting hose; 805, second connecting hose; 806, first static contact piece; 807, supporting guide frame; 808, T-shaped movable plate; 809, connecting block; 810, motor; 811, mounting frame; 812, second connecting cylinder; 813, third connecting cylinder; 814, connecting bin; 815, spreading connecting plate; 816, oblique connecting guide rod; 817, supporting plate; 818, solenoid valve; 819, fan; 820, exhaust bin; 821, first reset Spring; 822, first moving contact piece; 823, first piston rod; 824, second return spring; 825, second piston rod; 826, third return spring; 827, push rod; 828, second moving contact piece; 829, second static contact piece; 830, fourth return spring; 831, third piston rod; 832, pressure plate; 901, L-shaped connecting rod; 902, third connecting hose; 903, clamping plate; 904, one-way valve; 905, positioning plate; 906, limiting block; 907, locking hole; 908, fifth return spring; 909, trapezoidal extrusion block; 910, connecting block; 911, sixth return spring; 912, limiting plug rod; 913, locking pin; 914, rotating roller; 10, L-shaped support frame; 11, telescopic cylinder. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0035] See also Figures 1 to 10 In an embodiment of the present invention, an automatic double-sided asynchronous overlock sewing machine device includes a workbench 1, a driving device 2 is installed on one side of the workbench 1, a moving device 3 located above the workbench 1 is arranged on the driving device 2, a pressing plate 4 is connected to the bottom end of the moving device 3, a first sewing machine 5 is arranged on the side of the workbench 1 away from the driving device 2, a second sewing machine 6 is arranged on the side of the first sewing machine 5, a side connecting frame 7 arranged side by side with the first sewing machine 5 is installed on the side of the workbench 1 away from the driving device 2, an L-shaped support frame 10 is installed on the end of the side connecting frame 7 away from the driving device 2, a telescopic cylinder 11 is installed at the bottom of the L-shaped support frame 10, an output end of the telescopic cylinder 11 is connected to a pressure spreading member, a first connecting tube 803 is installed on the top of the L-shaped support frame 10, a one-way shifting member is arranged on the first connecting tube 803, and the telescopic cylinder 11 is connected to a connecting block 809 through the pressure spreading member.

[0036] In this embodiment: first, the cloth is placed on the top of the workbench 1, and then the telescopic cylinder 11 is started. The connection block 809 is moved to the top of the cloth by the extension of the telescopic cylinder 11 and the pressure-position spreading member. Then, the cloth is spread by the operation of the pressure-position spreading member. Then, the connection block 809 is moved to the initial position by the contraction of the telescopic cylinder 11. When the telescopic cylinder 11 is fully contracted, the pressure-position spreading member is restored by the operation of the one-way shifting member. Then, the driving device 2 and the moving device 3 cooperate to make the pressing plate 4 press the spread cloth, and at the same time, the cloth is moved to the bottom of the first sewing machine 5 and the second sewing machine 6. Then, the first sewing machine 5 and the second sewing machine 6 are operated to perform overlock sewing on the cloth.

[0037] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7The pressure spreading member includes a guide rail 802 connected to the output end of the telescopic cylinder 11, and the guide rail 802 is composed of a vertical section 8021 and an inclined section 8022. A movable sleeve block 801 is movably sleeved on the side connecting frame 7. The movable sleeve block 801 is slidably connected to the inner side of the guide rail 802 on the side close to the L-shaped support frame 10. A support guide frame 807 is installed on the top of the movable sleeve block 801. A third connecting cylinder 813 is provided on the top of the support guide frame 807. A T-shaped movable plate 808 is movably sleeved on the support guide frame 807. The outer wall of the third connecting cylinder 813 is provided with a first return spring 821 connected to the T-shaped movable plate 808. The support guide frame 80 7 is installed with a first static contact piece 806 on the inner side, a first movable contact piece 822 located above the first static contact piece 806 is installed at the bottom of the T-shaped movable plate 808, a first piston rod 823 extending to the inner side of the third connecting cylinder 813 is arranged on the top of the T-shaped movable plate 808, a third piston rod 831 extending to the bottom of the first connecting cylinder 803 is inserted into the inner side of the first connecting cylinder 803, a fourth return spring 830 connected to the bottom of the first connecting cylinder 803 is arranged on the third piston rod 831, a connecting block 809 is connected to the T-shaped movable plate 808, a mounting frame 811 is installed on the top of the connecting block 809, and a second connecting cylinder 812 is arranged on the top of the mounting frame 811, A second piston rod 825 is inserted into the interior of the second connecting cylinder 812, a support plate 817 is installed at the bottom of the second piston rod 825, a second return spring 824 connected to the mounting bracket 811 is arranged on the top of the support plate 817, both sides of the support plate 817 are rotatably connected with oblique connecting guide rods 816 through rotating shafts, a pressure plate 832 is fixed to the bottom of the connecting block 809, a spreading connecting plate 815 connected to the oblique connecting guide rod 816 is slidably connected to the connecting block 809, a motor 810 is installed on one side of the connecting block 809, an output end of the motor 810 is connected to an exhaust bin 820, one end of the exhaust bin 820 is sleeved with a fan 819 connected to the T-shaped movable plate 808, and the connecting block 8 09 A connecting bin 814 is provided on the side away from the exhaust bin 820, and a push rod 827 is inserted inside the connecting bin 814, and one end of the push rod 827 is provided with a third return spring 826 connected to the connecting bin 814, and one end of the push rod 827 is provided with a second moving contact piece 828 located on the inner side of the connecting bin 814, and a second static contact piece 829 is installed on the inner wall of the connecting bin 814, and a first connecting hose 804 connected to the third connecting bin 813 is provided at the top of the first connecting cylinder 803, and a solenoid valve 818 is provided at the top of the second connecting cylinder 812, and one end of the solenoid valve 818 is provided with a second connecting hose 805 connected to the top of the first connecting cylinder 803.

[0038] In this embodiment: when the telescopic cylinder 11 is extended, the inclined section 8022 on the guide rail 802 will drive the movable sleeve block 801 to move toward the workbench 1, so that the connecting block 809 is moved to the top of the cloth. The telescopic cylinder 11 continues to extend. At this time, the inclined section 8022 is separated from the movable sleeve block 801, and the vertical section 8021 moves to one side of the movable sleeve block 801. As the telescopic cylinder 11 extends, the output end of the telescopic cylinder 11 squeezes the third piston rod 831, so that the aqueous solution inside the first connecting tube 803 enters the third connecting tube 813 through the first connecting hose 804, so that the T-shaped movable plate 808 moves downward, so that when the T-shaped movable plate 808 moves to the lowest position, the first moving contact piece 822 contacts the first static contact piece 806, causing the solenoid valve 818 to be energized and opened, and at the same time, the spreading connecting plate 815 and the pressure plate 832 press on a part of the cloth. At this time, the first connecting The aqueous solution inside the cylinder 803 will enter the second connecting cylinder 812 as the third piston rod 831 is squeezed. At this time, the support plate 817 moves the spreading connecting plate 815 toward the side away from the pressure plate 832 through the oblique guide rod 816, so that the spreading connecting plate 815 can spread one end of the cloth. At the same time, the second moving contact piece 828 will push the second moving contact piece 828 to move due to the squeezing of the spreading connecting plate 815 on the pushing rod 827, so that the second moving contact piece 828 is in contact with the second static contact piece 829, so that the fan 819 and the motor 810 are powered on and operated, so that the fan 819 sprays air through the exhaust bin 820, and at the same time, the exhaust bin 820 is driven by the motor 810 to rotate clockwise, so that the airflow sprayed from the exhaust bin 820 can spread the cloth longitudinally, thereby preventing the cloth from wrinkling and affecting the sewing effect, and also reducing the labor intensity of the staff.

[0039] Please refer to Figure 3 , Figure 4 The solenoid valve 818 is electrically connected to the first stationary contact piece 806 through a wire, and the first movable contact piece 822 is electrically connected to an external power source through a wire.

[0040] In this embodiment, the electromagnetic valve 818 is energized and opened by the contact between the first stationary contact piece 806 and the first movable contact piece 822 , thereby realizing the orderly operation of the T-shaped movable plate 808 and the supporting plate 817 .

[0041] Please refer to Figure 3 , Figure 5 , Figure 7 The fan 819, the motor 810 and the second moving contact piece 828 are connected in series through a wire, and the second stationary contact piece 829 is electrically connected to an external power supply through a wire.

[0042] In this embodiment: by setting this structure, when the second moving contact piece 828 contacts the second stationary contact piece 829, the fan 819 and the motor 810 are powered on to operate, so that the exhaust bin 820 sprays airflow, thereby realizing contactless spreading of the cloth.

[0043] Please refer to Figure 5 , Figure 6 , the spreading connecting plate 815 is flush with the bottom of the pressing plate 832 .

[0044] In this embodiment: by setting this structure, the pressure plate 832 and the spreading connecting plate 815 can press the cloth at the same time, and at the same time, the pressure plate 832 can limit the cloth when the spreading connecting plate 815 moves, so that the spreading connecting plate 815 can spread one end of the cloth.

[0045] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 The one-way displacement member includes a third connecting hose 902 installed on the top of the second connecting cylinder 812 and located on one side of the solenoid valve 818. A one-way valve 904 connected to the first connecting cylinder 803 is provided at one end of the third connecting hose 902. A limiting block 906 is installed on the outer wall of the first connecting cylinder 803. A positioning plate 905 located above the limiting block 906 is installed on the outer wall of the first connecting cylinder 803. A locking plate 903 connected to the third piston rod 831 is inserted on the inner side of the limiting block 906. A locking hole 907 is opened on the locking plate 903. The limiting block 906 is away from the first connecting cylinder. A locking pin 913 is inserted on one side of the connecting tube 803, and a fifth return spring 908 connected to the limit block 906 is arranged on the locking pin 913. A connecting block 910 is fixed on the side of the locking pin 913 away from the limit block 906, and a rotating roller 914 is connected to the inner side of the connecting block 910. A limiting plug rod 912 is inserted on the positioning plate 905, and a trapezoidal extrusion block 909 is installed at the bottom of the limiting plug rod 912. An L-shaped connecting rod 901 is arranged at the bottom of the trapezoidal extrusion block 909, and a sixth return spring 911 connected to the bottom of the positioning plate 905 is arranged on the limiting plug rod 912.

[0046] In this embodiment: when the telescopic cylinder 11 is extended, the sixth return spring 911 will drive the limit rod 912, the trapezoidal extrusion block 909, and the L-shaped connecting rod 901 to move upward under the action of the elastic restoring force, so as to separate the trapezoidal extrusion block 909 from the connecting block 910. As the telescopic cylinder 11 squeezes the third piston rod 831, the locking hole 907 is aligned with the locking pin 913. At this time, the locking pin 913 will be inserted into the locking hole 907 under the action of the elastic restoring force of the fifth return spring 908, so as to realize the positioning of the locking plate 903 and the third piston rod 831. When the telescopic cylinder 11 is fully retracted, the output end of the telescopic cylinder 11 will The bottom of the L-shaped connecting rod 901 is pressed, and the trapezoidal extrusion block 909 will drive the locking pin 913 to move through the rotating roller 914 to make the connecting block 910 separate from the locking pin 913 and separate from the locking hole 907. After that, the third piston rod 831 can be restored under the action of the fourth reset spring 830. At this time, the aqueous solution inside the second connecting cylinder 812 and the third connecting cylinder 813 will pass into the first connecting cylinder 803, so that the spreading connecting plate 815 can be separated from the cloth and then reset, so as to realize the one-way spreading of the cloth by the spreading connecting plate 815 and the exhaust chamber 820, and prevent the spreading connecting plate 815 from moving the cloth when restoring.

[0047] Please refer to Figure 8 The liquid discharge end of the one-way valve 904 is connected to the first connecting tube 803 , and the liquid inlet end of the one-way valve 904 is connected to the third connecting hose 902 .

[0048] In this embodiment: this structure is provided to achieve unidirectional flow of the aqueous solution inside the second connecting cylinder 812 , so that when the solenoid valve 818 is closed, the aqueous solution inside the second connecting cylinder 812 enters the first connecting cylinder 803 through the third connecting hose 902 and the one-way valve 904 .

[0049] Please refer to Fig.10 The diameters of the locking pin 913 are equal to those of the locking pin 913 , and one end of the locking pin 913 close to the locking hole 907 is rotatably connected to a ball via a rotating shaft.

[0050] In this embodiment, this structure is provided to lock the locking plate 903 when the locking pin 913 is inserted into the locking hole 907 , and also reduces the friction between the locking pin 913 and the locking plate 903 when the locking pin 913 is not in contact with the locking plate 903 .

[0051] Please refer to Fig. 9 , Fig.10 The inclined surface of the trapezoidal extrusion block 909 is close to one side of the transfer roller 914 , and the trapezoidal extrusion block 909 is located between the transfer roller 914 and the locking pin 913 .

[0052] In this embodiment: by providing this structure, when the trapezoidal extrusion block 909 moves downward, the locking pin 913 is separated from the locking hole 907 by squeezing the rotating roller 914.

[0053] In combination with the above-mentioned bilateral asynchronous automatic overlock sewing machine, a bilateral asynchronous automatic overlock sewing method is provided, which specifically includes the following steps:

[0054] S1: First, place the cloth on the top of the workbench 1, then start the telescopic cylinder 11. When the telescopic cylinder 11 is extended, the inclined section 8022 on the guide rail 802 drives the movable sleeve block 801 to move toward the workbench 1, so that the connecting block 809 moves to the top of the cloth. The telescopic cylinder 11 continues to extend. At this time, the inclined section 8022 separates from the movable sleeve block 801, and the vertical section 8021 moves to one side of the movable sleeve block 801. As the telescopic cylinder 11 is extended, the inclined section 8022 on the guide rail 802 moves to the side of the movable sleeve block 801. The output end of the telescopic cylinder 11 squeezes the third piston rod 831, so that the aqueous solution inside the first connecting tube 803 enters the third connecting tube 813 through the first connecting hose 804, so as to move the T-shaped movable plate 808 downward, so that when the T-shaped movable plate 808 moves to the lowest position, the first moving contact piece 822 contacts the first static contact piece 806, causing the electromagnetic valve 818 to be energized and opened, and at the same time, the spreading connecting plate 815 and the pressure plate 832 press a part of the cloth;

[0055] S2: The aqueous solution inside the first connecting tube 803 will enter the second connecting tube 812 as the third piston rod 831 is squeezed. At this time, the support plate 817 moves the spreading connecting plate 815 toward the side away from the pressure plate 832 through the oblique guide rod 816, so that the spreading connecting plate 815 can spread one end of the cloth. At the same time, the second moving contact piece 828 will push the second moving contact piece 828 to move due to the squeezing of the spreading connecting plate 815 on the pushing rod 827, so that the second moving contact piece 828 is in contact with the second static contact piece 829, so that the fan 819 and the motor 810 are powered on and operated, so that the fan 819 sprays air through the exhaust bin 820, and at the same time drives the exhaust bin 820 to rotate clockwise through the motor 810, so that The airflow ejected from the exhaust chamber 820 can be made to spread the fabric longitudinally, so that the fabric can be prevented from wrinkling and affecting the sewing effect, and the labor intensity of the staff can also be reduced. When the telescopic cylinder 11 is extended, the sixth return spring 911 will drive the limit rod 912, the trapezoidal extrusion block 909, and the L-shaped connecting rod 901 to move upward under the action of the elastic restoring force, so as to separate the trapezoidal extrusion block 909 from the connecting block 910. As the telescopic cylinder 11 squeezes the third piston rod 831, the locking hole 907 is aligned with the locking pin 913. At this time, the locking pin 913 will be inserted into the locking hole 907 under the action of the elastic restoring force of the fifth return spring 908, so as to realize the positioning of the locking plate 903 and the third piston rod 831.

[0056] S3: The connecting block 809 is moved to the initial position by contracting the telescopic cylinder 11;

[0057] S4: When the telescopic cylinder 11 is fully retracted, the output end of the telescopic cylinder 11 will press the bottom of the L-shaped connecting rod 901. At this time, the trapezoidal extrusion block 909 will drive the locking pin 913 to move through the rotating roller 914 to make the connecting block 910 move, so that the locking pin 913 is separated from the locking hole 907. Then, the third piston rod 831 can be restored under the action of the fourth reset spring 830. At this time, the aqueous solution inside the second connecting cylinder 812 and the third connecting cylinder 813 will enter the first connecting cylinder through In the receiving tube 803, the spreading connecting plate 815 can be separated from the cloth and then reset, so that the spreading connecting plate 815 and the exhaust chamber 820 can spread the cloth in one direction, and prevent the spreading connecting plate 815 from moving the cloth when it is restored. Then, the driving device 2 and the moving device 3 cooperate to make the pressing plate 4 press the spread cloth, and at the same time move the cloth to the bottom of the first sewing machine 5 and the second sewing machine 6, and then the first sewing machine 5 and the second sewing machine 6 are operated to perform overlock sewing on the cloth.

[0058] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic double-sided asynchronous overlock sewing machine, comprising a workbench (1), characterized in that: A driving device (2) is installed on one side of the workbench (1); a moving device (3) is arranged on the driving device (2) and is located above the workbench (1); a pressing plate (4) is connected to the bottom end of the moving device (3); a first sewing machine (5) is arranged on the side of the workbench (1) away from the driving device (2); a second sewing machine (6) is arranged on the side of the first sewing machine (5); and a second sewing machine (7) is arranged side by side with the first sewing machine (5) on the side of the workbench (1) away from the driving device (2). A side connecting frame (7) is provided, an L-shaped support frame (10) is installed at one end of the side connecting frame (7) away from the driving device (2), a telescopic cylinder (11) is installed at the bottom of the L-shaped support frame (10), an output end of the telescopic cylinder (11) is connected to a pressure spreading member, a first connecting tube (803) is installed at the top of the L-shaped support frame (10), a one-way displacement member is provided on the first connecting tube (803), and the telescopic cylinder (11) is connected to a connecting block (809) via the pressure spreading member.

2. The automatic double-sided asynchronous overlock sewing machine according to claim 1, characterized in that: The pressure spreading member comprises a guide rail (802) connected to the output end of the telescopic cylinder (11), the guide rail (802) being composed of a vertical section (8021) and an inclined section (8022), a movable sleeve block (801) being movably sleeved on the side connecting frame (7), a side of the movable sleeve block (801) close to the L-shaped support frame (10) being slidably connected to the inner side of the guide rail (802), a support guide frame (807) being installed on the top of the movable sleeve block (801), a third connecting tube (813) being provided on the top of the support guide frame (807), a T-shaped movable plate (808) being movably sleeved on the support guide frame (807), an outer wall of the third connecting tube (813) being provided with a sleeve that is in contact with the T-shaped movable plate (808), and a sleeve that is in contact with the T-shaped movable plate (808) being provided on the outer wall of the third connecting tube (813). ), a first return spring (821) connected to the support guide frame (807), a first static contact piece (806) is installed on the inner side of the support guide frame (807), a first movable contact piece (822) located above the first static contact piece (806) is installed at the bottom of the T-shaped movable plate (808), a first piston rod (823) extending to the inner side of the third connecting cylinder (813) is arranged on the top of the T-shaped movable plate (808), a third piston rod (831) extending to the bottom of the first connecting cylinder (803) is inserted into the inner side of the first connecting cylinder (803), a fourth return spring (830) connected to the bottom of the first connecting cylinder (803) is arranged on the third piston rod (831), the connecting block (809) is connected to the T-shaped movable plate (808), the A mounting frame (811) is installed on the top of the connecting block (809), a second connecting tube (812) is arranged on the top of the mounting frame (811), a second piston rod (825) is inserted into the interior of the second connecting tube (812), a support plate (817) is installed on the bottom of the second piston rod (825), a second return spring (824) connected to the mounting frame (811) is arranged on the top of the support plate (817), oblique connecting rods (816) are rotatably connected to the two sides of the support plate (817) through a rotating shaft, a pressure plate (832) is fixed on the bottom of the connecting block (809), a spreading connecting plate (815) connected to the oblique connecting rod (816) is slidably connected to the connecting block (809), and the connecting block (8 09), a motor (810) is installed on one side of the motor (810), the output end of the motor (810) is connected to the exhaust bin (820), one end of the exhaust bin (820) is sleeved with a fan (819) connected to the T-shaped movable plate (808), a connecting bin (814) is arranged on the side of the connecting block (809) away from the exhaust bin (820), a push rod (827) is inserted into the interior of the connecting bin (814), one end of the push rod (827) is provided with a third return spring (826) connected to the connecting bin (814), one end of the push rod (827) is provided with a second moving contact piece (828) located inside the connecting bin (814), and a second static contact piece (829) is installed on the inner wall of the connecting bin (814),The top of the first connecting tube (803) is provided with a first connecting hose (804) connected to the third connecting tube (813), the top of the second connecting tube (812) is provided with a solenoid valve (818), and one end of the solenoid valve (818) is provided with a second connecting hose (805) connected to the top of the first connecting tube (803).

3. The automatic double-sided asynchronous overlock sewing machine according to claim 2, characterized in that: The solenoid valve (818) is electrically connected to the first stationary contact piece (806) via a wire, and the first movable contact piece (822) is electrically connected to an external power source via a wire.

4. The automatic double-sided asynchronous overlock sewing machine according to claim 2, characterized in that: The fan (819), the motor (810) and the second moving contact piece (828) are connected in series via a wire, and the second stationary contact piece (829) is electrically connected to an external power source via a wire.

5. The automatic double-sided asynchronous overlock sewing machine according to claim 2, characterized in that: The spreading connecting plate (815) is flush with the bottom of the pressing plate (832).

6. The automatic double-sided asynchronous overlock sewing machine according to claim 2, characterized in that: The one-way displacement member comprises a third connecting hose (902) installed on the top of the second connecting tube (812) and located on one side of the solenoid valve (818); one end of the third connecting hose (902) is provided with a one-way valve (904) connected to the first connecting tube (803); a limiting block (906) is installed on the outer wall of the first connecting tube (803); a positioning plate (905) located above the limiting block (906) is installed on the outer wall of the first connecting tube (803); a locking plate (903) connected to the third piston rod (831) is inserted on the inner side of the limiting block (906); a locking hole (907) is provided on the locking plate (903); the limiting block (906) is away from the first connecting tube ( A locking pin (913) is inserted on one side of the positioning plate (903), and a fifth return spring (908) connected to the limit block (906) is arranged on the locking pin (913); a connecting block (910) is fixed on the side of the locking pin (913) away from the limit block (906), and a rotating roller (914) is connected to the inner side of the connecting block (910); a limiting plug rod (912) is inserted on the positioning plate (905), a trapezoidal extrusion block (909) is installed at the bottom of the limiting plug rod (912), an L-shaped connecting rod (901) is arranged at the bottom of the trapezoidal extrusion block (909), and a sixth return spring (911) connected to the bottom of the positioning plate (905) is arranged on the limiting plug rod (912).

7. The automatic double-sided asynchronous overlock sewing machine according to claim 6, characterized in that: The liquid discharge end of the one-way valve (904) is connected to the first connecting tube (803), and the liquid inlet end of the one-way valve (904) is connected to the third connecting hose (902).

8. The automatic double-sided asynchronous overlock sewing machine according to claim 6, characterized in that: The locking pin (913) has the same diameter as the locking pin (913), and one end of the locking pin (913) close to the locking hole (907) is rotatably connected to a ball via a rotating shaft.

9. The automatic double-sided asynchronous overlock sewing machine according to claim 6, characterized in that: The inclined surface of the trapezoidal extrusion block (909) is close to one side of the transfer roller (914), and the trapezoidal extrusion block (909) is located between the transfer roller (914) and the locking pin (913).

10. An automated double-sided asynchronous overlock method, characterized in that: The automatic double-sided asynchronous overlock sewing machine device according to any one of claims 1 to 9 comprises the following steps: S1: First, place the cloth on the top of the workbench (1), then start the telescopic cylinder (11), and move the connecting block (809) to the top of the cloth through the extension of the telescopic cylinder (11) and the cooperation of the pressure spreading member; S2: Spreading the fabric by the operation of the pressure spreading member; S3: The connecting block (809) is moved to the initial position by contracting the telescopic cylinder (11); S4: When the telescopic cylinder (11) is fully retracted, the one-way shifting member is operated to restore the pressure spreading member, and then the driving device (2) and the moving device (3) cooperate to make the pressing plate (4) press the spread cloth, and at the same time move the cloth to the bottom of the first sewing machine (5) and the second sewing machine (6), and then the first sewing machine (5) and the second sewing machine (6) are operated to perform overlock sewing on the cloth.

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