CN113403758B - A lining and contrast device for a tacking machine - Google Patents

Abstract

The invention provides a lining and contrasting device for a tacking machine, which belongs to the technical field of machinery. The invention solves the problem of high manual cutting cost of the existing tacking machine lining and contrasting device. The lining and contrasting device of the tacking machine includes a first driving mechanism, a second driving mechanism and a cutting device, defining a pre-processing area, and the movable knife has two states of exiting and closing; when the second driving mechanism drives the When the moving knife comes out, the moving knife cuts the pre-processing area of the main cloth by contacting the knife table; when the second driving mechanism drives the moving knife to retract, the moving knife resets, and the first drive The mechanism drags the pre-processing area of the main cloth away from the knife station. The present invention cuts the main cloth through the cooperation of the first driving mechanism, the second driving mechanism and the cutting device. This lining method greatly reduces the operation process of workers, improves the effect, and has excellent economic effect.

Description

A lining and contrast device for a tacking machine

technical field

The invention belongs to the technical field of machinery, and relates to a lining device, in particular to a lining and contrasting device for a tacking machine.

Background technique

With the improvement of living standards, people's requirements for the comfort of clothing are also getting higher and higher, so the requirements for clothing sewing are also getting higher and higher. In the process of sewing clothes, some areas with dense needles and threads need to be reinforced with lining fabrics, which prevents the fabrics of the bar tack reinforcement part from being damaged when clothes such as jeans are washed in water, and also makes the sewing part and human Skin-to-skin contact is most comfortable.

The existing bar tack reinforcement methods all use artificially cut fabrics for reinforcement. The smaller the size, the more difficult it is to cut. It is manually placed under the machine presser foot for bar tack contrast reinforcement sewing. In this way, the labor cost is high, the efficiency is low, and the manual placement positions are not uniform, resulting in poor aesthetics after sewing and lining the fabric.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above-mentioned technical problem of manual cutting of the main fabric and high cost, and proposes a lining and contrasting device for a bar tacking machine.

The object of the present invention can be realized through the following technical solutions:

A lining and contrasting device for a tacking machine, comprising:

a first driving mechanism, the first driving mechanism is used to drag the main cloth, and the main cloth has a preprocessing area;

a second drive mechanism, the second drive mechanism has a second drive shaft;

a cutting device, the cutting device has a movable knife and a knife table matched with the movable knife, the movable knife is fixedly connected with the second drive shaft; the second drive mechanism drives the movable knife to perform cutting action;

Define the part of the main material between the movable knife and the knife table as a pre-processing area;

The movable knife has two states: the knife is out and the knife is retracted; when the second driving mechanism drives the movable knife to take out the knife, the movable knife cuts the preset of the main cloth by contacting the knife table. Processing area; when the second driving mechanism drives the moving knife to retract, the moving knife resets, and the first driving mechanism drags the pre-processing area of the main cloth away from the knife table.

Preferably, the movable knife is a nylon rod, and the knife base is a hollow tube; the first driving mechanism further includes a limit guide tube fixedly installed on the sewing machine frame, and the limit guide tube is provided with a guide tube for the main cloth to move. a channel; a first through hole is opened on the limit conduit, and the area on the main cloth facing the first through hole is the above-mentioned pre-processing area; the top end of the hollow tube and the moving knife The top ends of the hollow tubes are arranged opposite to each other, and the top end of the hollow tube and the top end of the moving knife are located on both sides of the first through hole; when the moving knife is out of the knife, the moving knife penetrates the first through hole. (112) After contacting with the hollow tube, the pre-processing area is cut to cut out the lining fabric that needs to be sewn.

Preferably, a notch is formed on the top end of the hollow tube, and when the movable knife is in contact with the tool holder, the position of the pre-processing area at the notch will not be cut.

Preferably, the first driving mechanism includes a stepping motor, a synchronous wheel transmission device, and a clamping and feeding wheel device for dragging the main cloth; the clamping and feeding wheel device includes a first feeding wheel and a second feeding wheel. After the main cloth passes through the gap between the first feeding wheel and the second feeding wheel, the first feeding wheel and the second feeding wheel abut on the main cloth; the synchronizing wheel Two ends of the transmission device are respectively fixedly connected with the motor shaft of the stepping motor and the clamping and feeding wheel device; the stepping motor drives the first feeding wheel to rotate through the synchronous wheel transmission device.

Preferably, the clamping feeding wheel device further comprises a first air cylinder having a first driving rod, the first driving rod is fixedly connected with the second feeding wheel; the first air cylinder pushes the second feeding wheel Displacement; when preparing to pass the main cloth between the first feeding wheel and the second feeding wheel, the first air cylinder drives the second feeding wheel away from the first feeding wheel; when After the main material passes through the gap between the first feeding wheel and the second feeding wheel, the first air cylinder drives the second feeding wheel to approach the first feeding wheel.

Preferably, the number of the clamping and feeding wheel devices is two, which are respectively located on both sides of the sewing machine head.

Preferably, the second drive mechanism includes a second air cylinder and a second transmission device, the second transmission device is connected between the second drive shaft and the movable knife; the second transmission device includes a second transmission shaft and a second transmission member fixedly connected with the second transmission shaft, the second transmission member is fixedly connected with the second drive shaft, and the second transmission member converts the back and forth reciprocating motion of the second drive shaft into the second transmission When the shaft rotates, the second transmission shaft is fixedly connected with one side of the movable knife; the second air cylinder drives the movable knife to rotate through the second transmission device.

Preferably, the first driving mechanism further comprises a first limiting device, a material pressing cylinder, a feeding cylinder and a first sliding rail; the pressing material cylinder is connected to the first limiting device; the pressing material cylinder drives the The first limiting device rises or falls; the pressing cylinder is slidably connected to the first slide rail; the feeding cylinder is fixedly connected to the pressing cylinder, and the pressing cylinder drives the feeding cylinder to slide on the first slide rail.

Preferably, it also includes a casing that can be fixedly installed on the sewing machine frame; the first driving mechanism, the second driving mechanism and the cutting device are all fixedly installed inside the casing.

Preferably, the lining and contrasting device for the tacking machine further includes a fixing frame, and the second driving mechanism and the knife table are respectively fixedly connected at both ends of the fixing frame; the second driving mechanism and the knife table can be installed in The mounting position of the fixing frame is changed by means of screws.

Compared with the prior art, the present invention cuts the main fabric through the cooperation of the first driving mechanism, the second driving mechanism and the cutting device. In the present invention, the second driving mechanism drives the cutting device to cut the main fabric to cut out the backing fabric to be sewn. After the cutting is completed, the first driving mechanism drags the cut main fabric to the sewing area of the sewing machine, and then the operator operates the sewing machine to sew the cut backing fabric onto the garment. This lining method greatly reduces the operation process of workers, improves the effect, and has excellent economic effect.

Description of drawings

FIG. 1 is a first structural schematic diagram of the lining device according to the first embodiment.

FIG. 2 is a second structural schematic diagram of the lining device of the first embodiment.

3 is a third structural schematic diagram of the lining device of the first embodiment.

FIG. 4 is an enlarged view of part A in FIG. 3 .

FIG. 5 is a schematic diagram 4 of the structure of the lining device of the first embodiment.

FIG. 6 is a first structural schematic diagram of the lining device of the second embodiment.

FIG. 7 is a second structural schematic diagram of the lining device of the second embodiment.

FIG. 8 is an enlarged view of B in FIG. 7 .

FIG. 9 is a third structural schematic diagram of the lining device of the second embodiment.

In the figure, 1. the first driving mechanism; 11. the limit pipe; 111, the channel; 112, the first through hole; 12, the stepping motor; 13, the synchronizing wheel transmission device; The first feeding wheel; 142, the second feeding wheel; 143, the first cylinder; 1431, the first driving rod; 15, the first limit device; 16, the pressing cylinder; 17, the feeding cylinder; 18, the first sliding rail 2, the second drive mechanism; 21, the second cylinder; 22, the second transmission device; 221, the second transmission shaft; 222, the second transmission part; 23, the second drive shaft; 3, the cutting device; Knife; 32, knife table; 321, hollow tube; 4, shell; 5, fixed frame; 6, sewing machine head.

Detailed ways

The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

Example 1:

As shown in Figures 1-5, a bar tacking machine lining and contrasting device includes a first driving mechanism 1, the first driving mechanism 1 is used to drag the main cloth, and the main cloth has a pre-processing area; The pre-processing area does not just refer to one piece. In this embodiment, the area where the main fabric will be processed by the lining device is the pre-processing area.

As shown in FIG. 1 , the first driving mechanism 1 includes a stepping motor 12 , a synchronous wheel transmission device 13 and a clamping and feeding wheel device 14 for dragging the main cloth.

The synchronous wheel transmission device 13 includes a belt and two synchronous wheels, one of which is fixedly connected to the motor shaft of the stepping motor 12 ; the specific structure of the synchronous wheel transmission device 13 in this embodiment is shown in FIG. 8 . The two ends of the synchronous wheel transmission device 13 are respectively fixedly connected with the motor shaft of the stepping motor 12 and fixedly connected with the clamping and feeding wheel device 14;

The clamping feeding wheel device 14 includes a first feeding wheel 141 and a second feeding wheel 142. After the main material passes through the gap between the first feeding wheel 141 and the second feeding wheel 142, the first feeding wheel 141 and the second feeding wheel 142 142 abuts on the main cloth; the stepping motor 12 drives the first feeding wheel 141 to rotate through the synchronous wheel transmission device 13, so as to drag the main cloth.

As shown in FIGS. 1-3 , in order to facilitate the operation of the main material, the clamping and feeding wheel device 14 of this embodiment further includes a first air cylinder 143 having a first driving rod 1431, the first driving rod 1431 and the second feeding The wheel 142 is fixedly connected; the first air cylinder 143 pushes the second feeding wheel 142 to displace; when the main cloth is ready to pass between the first feeding wheel 141 and the second feeding wheel 142, the first air cylinder 143 drives the second feeding wheel 142 away from the first feeding wheel 141; when the main material passes through the gap between the first feeding wheel 141 and the second feeding wheel 142, the first air cylinder 143 drives the second feeding wheel 142 to approach the first feeding wheel 141, so that the second feeding The wheel 142 cooperates with the first feeding wheel 141 to hold the main cloth.

In the present embodiment, the number of clamping and feeding wheel devices 14 is two, which are located on both sides of the sewing machine head 6, so that the moving path of the main fabric can be restricted, so as to prevent the left and right deviation, which will affect the operation of the sewing machine. Effect.

The lining device in this embodiment further includes a second driving mechanism 2 and a cutting device 3 for cutting the main cloth, and the second driving mechanism 2 is used for driving the cutting device 3 to perform cutting operations. The second drive mechanism 2 has a second drive shaft 23 .

The lining and contrasting device of the bar tacking machine in this embodiment also includes a cutting device 3 for cutting the main cloth. The cutting device 3 has a moving 731 and a knife table 32 matched with the moving 731. The main cloth is close to the area on the knife table 32. for the preprocessing area. The movable 731 is fixedly connected with the second driving shaft 23; the second driving mechanism 2 drives the movable 731 to perform the cutting action. In this embodiment, the second driving mechanism 2 is a cylinder, the actuator 731 is a nylon rod, the nylon rod is fixedly connected with the driving rod of the cylinder, and the knife table 32 is a hollow tube 321 . The hardness of the nylon rod is moderate, and the wear of the hollow tube 321 caused by the inertia caused by the reciprocating motion of the cylinder can be effectively reduced during the repeated contact between the movable 731 and the hollow tube 321 . In this embodiment, a notch 3211 is formed at the top of the hollow tube 321. When the moving 731 is in contact with the knife table 32, the position of the notch 3211 on the pre-processing area will not be cut, and the setting of the notch can prevent it from being cut out. The backing fabric is separated from the main fabric and cannot be dragged under the presser foot of the sewing machine.

As shown in FIGS. 1 , 3 and 4 , the first driving mechanism 1 further includes a limit guide 11 fixedly installed on the sewing machine frame, and the limit guide 11 is provided with a channel 111 for the main cloth to move. The cloth to be used for lining passes through the limiting conduit 11 through the passage 111 . In order to be able to cut the main fabric, a first through hole 112 is formed on the limiting conduit 11 , and the area of the main fabric within the first through hole 112 is a preprocessing area. The top of the hollow tube 321 and the top of the movable 731 are arranged opposite to each other, that is, the top of the hollow tube 321 and the top of the movable 731 are located on both sides of the first through hole 112 respectively; The through holes 112 are in contact with each other, and the preprocessing area is cut. It is worth noting that, since the hollow tube 321 serving as the knife table 32 in this embodiment has a notch 3211 , when the knife 731 is drawn out, most of the knife 731 is in close contact with the hollow pipe 321 . The main fabric at the notch 3211 is not cut, so that the cut main fabric will still be connected to the main main fabric. When the first drive mechanism 1 drags the cut main fabric to the lower part of the presser foot of the sewing machine, the cut main fabric will be sewn to another piece of fabric due to the cooperation of the sewing machine presser foot and the stitch. The backing is disconnected from the main body fabric. That is to say, the cooperation of the movable knife 31 and the knife base 32 in this embodiment cleverly prevents the main material being cut from being completely disconnected, but is disconnected after reaching the sewing area, which is very convenient. Moreover, such an operation method enables the main fabric to be used reasonably, and each piece of the main fabric to be cut has the same size, which will not affect the beauty of sewing another piece of fabric.

Since the movable knife 31 will vibrate every time the knife is ejected, the contact between the movable knife 31 and the knife table 32 will be affected. Therefore, as shown in FIG. 2 , the lining device further includes a fixing frame 5 , and two ends of the fixing frame 5 are respectively fixedly connected with the second driving mechanism 2 and the tool rest 32 . The fixed frame 5 can play a strong and stabilizing role for the knife out and reset of the movable knife 31 . In addition, both the second driving mechanism 2 and the knife table 32 can be installed on the fixing frame 5 by changing the installation position through screws, which is convenient to adjust the positions of the second driving mechanism 2 and the knife table 32 according to different usage conditions.

As shown in FIG. 3 , the padding device of this embodiment further includes a casing 4 that can be fixedly installed on the sewing machine frame. The first driving mechanism 1 , the second driving mechanism 2 and the cutting device 3 are all fixedly installed inside the casing 4 . This facilitates the installation, disassembly and transportation of the lining device, which is very convenient.

The lining and contrasting device of the bar tacking machine in this embodiment also includes a cloth wheel for storing the main cloth, and the cloth wheel is installed on the frame of the sewing machine.

The first driving mechanism 1 and the second driving mechanism 2 in this embodiment are both electrically connected to the main controller, and the main controller is also electrically connected to the sewing machine, so that the first driving mechanism 1 and the second driving mechanism 2 can respond accordingly when the sewing machine is running. action.

Specific working process:

The user first moves the second feeding wheel 142 away from the first feeding wheel 141 through the first air cylinder 143 , and then passes the main material through the channel 111 of the limiting conduit 111 and the first feeding wheel 141 and the two clamping the feeding wheel device 14 . Between the second feeding wheels 142, the first air cylinder 143 is controlled to make the second feeding wheel 142 close to the first feeding wheel 141, so that the second feeding wheel 142 and the first feeding wheel 141 cooperate to hold the main material. Then run the sewing machine, when the presser foot of the sewing machine is lifted, the second air cylinder 21 pushes the movable knife 31, so that the movable knife 31 and the hollow tube 321 contact in the first through hole 112, so as to achieve the preprocessing area for cutting the main fabric. After cutting, the moving knife 31 is reset, and the motor shaft of the stepping motor 12 rotates, which drives the first feeding wheel 141 to rotate, drags the main fabric to the bottom of the sewing machine presser foot, and then performs the sewing operation. This cycle is very convenient. .

Embodiment 2:

As shown in FIGS. 6-9 , the difference between this embodiment and the first embodiment is that the lining and contrasting device of the bar tacking machine of this embodiment is installed above the sewing machine frame and on the side of the sewing machine head. And as shown in FIGS. 6-8 , the second drive mechanism 2 of this embodiment includes a second cylinder 21 and a second transmission device 22 , and a second transmission device 22 is connected between the second drive shaft 23 and the movable knife 31 ; The second transmission device 22 includes a second transmission shaft 221 and a second transmission member 222 fixedly connected with the second transmission shaft 221. The second transmission member 222 is fixedly connected with the second driving shaft 23, and the second transmission member 222 drives the second transmission member 222. The back-and-forth reciprocating motion of the shaft 23 is converted into the rotation of the second transmission shaft 221 , which is fixedly connected to one side of the movable knife 31 ; the second air cylinder 21 drives the movable knife 31 to rotate through the second transmission device 22 .

The first driving mechanism 1 of this embodiment has only one clamping and feeding device 14, which is installed at a position close to the sewing machine head. The first driving mechanism 1 of this embodiment also includes a first limiting device 15, a pressing cylinder 16, The feeding cylinder 17 and the first sliding rail 18; the pressing cylinder 16 is connected to the first limiting device 15; the pressing cylinder 16 drives the first limiting device 15 to ascend or descend; The feeding cylinder 17 is fixedly connected with the pressing material cylinder 16, and the pressing material cylinder 16 drives the feeding cylinder 17 to slide on the first slide rail 18.

The movable knife 31 in this embodiment has a blade, and the knife base 32 is a platform. The movable knife 31 rotates and contacts with the knife base 32 to cut the main material. When the main material is cut off, the pressing cylinder 16 controls the first limiting device 15 to lift, and then the feeding cylinder 17 drives the pressing cylinder 16 to move along the first slide rail 18 to the position of the main material being cut. The bit device 15 is located above the main fabric being cut. Then the pressing cylinder 16 controls the first limiting device 15 to descend until the first limiting device 15 presses the main material to be cut, and then the feeding cylinder 17 drives the pressing cylinder 16 to move to the presser foot side of the sewing machine. The fabric also moves to the lower part of the presser foot, and then the pressing cylinder 16 is reset. The sewing machine then performs the sewing operation.

In this embodiment, the shape of the main cloth to be cut can be changed by changing the shape of different hollow tubes 321 .

The lining device of this embodiment also includes a cloth wheel for storing the main cloth, and the cloth wheel is installed on the support frame of the casing 4 .

The first driving mechanism 1 and the second driving mechanism 2 in this embodiment are both electrically connected to the main controller, and the main controller is also electrically connected to the sewing machine, so that the first driving mechanism 1 and the second driving mechanism 2 can respond accordingly when the sewing machine is running. action.

Compared with the first embodiment, this embodiment reduces the number of parts and components, optimizes the layout of parts, greatly reduces the volume of the lining device, and is easy to install and disassemble, which is very convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention pertains can make various modifications or additions to the described specific embodiments or substitute in similar manners, but will not deviate from the spirit of the present invention or go beyond the definitions of the appended claims range.

Although such terms are used more frequently in this paper, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; it is contrary to the spirit of the present invention to interpret them as any kind of additional limitation.

Claims (7)

1. a tacking machine lining and contrasting device is characterized in that, comprising a first driving mechanism (1), the first driving mechanism (1) is used for dragging the main cloth; a second drive mechanism (2), the second drive mechanism (2) has a second drive shaft (23); A cutting device (3), the cutting device (3) has a movable knife (31) and a knife table (32) matched with the movable knife (31), and the movable knife (31) is fixedly connected with the second drive shaft (23) ; The second drive mechanism (2) drives the movable knife (31) to do the cutting action; Define the part of the main material between the movable knife (31) and the knife table (32) as a preprocessing area; The movable knife (31) has two states of knife-out and knife-retracted; when the second driving mechanism (2) drives the movable knife (31) to eject the knife, the movable knife (31) passes the The knife rest (32) is in contact to cut the pre-processing area of the main cloth; when the second driving mechanism (2) drives the movable knife (31) to retract the knife, the movable knife (31) is reset, and the first A driving mechanism (1) drags the pre-processing area of the main cloth away from the tool table (32); The movable knife (31) is a nylon rod, and the knife table (32) is a hollow tube (321); a gap (3211) is formed at the top of the hollow tube (321), and when the movable knife (31) When in contact with the tool holder (32), the position on the pre-processing area located at the notch (3211) will not be cut. 2 . The lining and contrasting device for a bar tacking machine according to claim 1 , wherein the first driving mechanism ( 1 ) further comprises a limit guide pipe ( 11 ) fixedly installed on the sewing machine frame, and the limit duct The conduit (11) is provided with a channel (111) for the main fabric to pass through; the limiting conduit (11) is provided with a first through hole (112), and the main fabric is facing the first through hole The area at (112) is the above-mentioned pre-processing area; the top end of the hollow tube (321) is opposite to the top end of the movable knife (31), and the top end of the hollow tube (321) is opposite to the movable knife (321). The top ends of 31) are respectively located on both sides of the first through hole (112). The hollow tubes (321) are in contact, and the pre-processing area is cut to cut out the lining fabric that needs to be sewn. 3. The lining and contrasting device for a tacking machine according to claim 1, wherein the first drive mechanism (1) comprises a stepping motor (12), a synchronous wheel drive (13) and a A clamping and feeding wheel device (14) for dragging the main material; the clamping and feeding wheel device (14) includes a first feeding wheel (141) and a second feeding wheel (142), when the main material passes through the first feeding wheel (142) After the gap between the feeding wheel (141) and the second feeding wheel (142), the first feeding wheel (141) and the second feeding wheel (142) abut on the main cloth; Both ends of the synchronous wheel transmission device (13) are respectively fixedly connected with the motor shaft of the stepping motor (12) and the clamping and feeding wheel device (14); the stepping motor (12) is synchronously connected by The wheel transmission device (13) drives the first feeding wheel (141) to rotate. 4. A lining and contrasting device for a bar tacking machine according to claim 3, characterized in that the clamping and feeding wheel device (14) further comprises a first air cylinder (143) having a first driving rod (1431) , the first driving rod (1431) is fixedly connected with the second feeding wheel (142); the first air cylinder (143) pushes the second feeding wheel (142) to move; When the cloth penetrates between the first feeding wheel (141) and the second feeding wheel (142), the first air cylinder (143) drives the second feeding wheel (142) away from the first feeding wheel (141); after the main material passes through the gap between the first feeding wheel (141) and the second feeding wheel (142), the first air cylinder (143) drives the second feeding wheel (143) The feeding wheel (142) is close to the first feeding wheel (141). 5 . The lining and contrasting device for a bar tacking machine according to claim 4 , wherein the number of the clamping and feeding wheel devices ( 14 ) is two, which are respectively located on both sides of the sewing machine head ( 6 ). 6 . . 6. A lining and contrasting device for a bar tacking machine according to claim 1, characterized in that it also comprises a casing (4) that can be fixedly installed on a sewing machine frame; the first driving mechanism (1), the Both the second driving mechanism (2) and the cutting device (3) are fixedly installed inside the casing (4). 7. The lining and contrasting device for a tacking machine according to claim 2, characterized in that, the lining and contrasting device for the tacking machine further comprises a fixing frame (5), and the two ends of the fixing frame (5) are respectively connected with each other. The second driving mechanism (2) is fixedly connected with the tool table (32); both the second driving mechanism (2) and the tool table (32) can be changed on the fixing frame (5) by screws installation location.

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