A knotting device for automatic twisting machine

Abstract

The present invention discloses a knotting device for an automatic shaking machine, which includes a knotting head, a wire hook, a knockout push rod, a knockout rocker, a wire pulling rocker, a scissors, an upper baffle and a lower baffle. The knotting head, the wire hook and the knockout push rod cooperate with each other, and the knotting head and the knockout push rod are rotatable relative to the wire hook. At the same time, the knotting head and the wire hook are telescopic relative to the knockout push rod. The wire pulling rocker, the scissors and the upper baffle are arranged above the knotting head, the wire hook and the knockout push rod, and the knockout rocker and the lower baffle are arranged below the knotting head, the wire hook and the knockout push rod. The present invention is used to realize the automatic knotting function of the fully automatic shaking machine for binding twisted wires. The looping, clamping and scissors are separated from each other, so that not only good looping, looping, cutting and tightening can be achieved, but also the knotting adaptability to coarse yarns and multi-strand yarns is better, and the knotting quality is more reliable.

Description

Technical Field

[0001] The invention belongs to the field of textile machinery, and in particular relates to a knotting device for an automatic twisting machine. Background Art

[0002] With the continuous development of the textile industry, the application of the shaking machine is becoming more and more extensive. Since the shaking machine is easy to operate and has high working efficiency, it can greatly reduce production costs.

[0003] A twisting machine is a machine that winds the bobbin yarn on a rotating yarn frame to form a twist. The current twisting machine generally includes a frame, a rotating yarn frame connected to the frame, and a motor or a crank that drives the rotating yarn frame to rotate. After the bobbin yarn is wound on the rotating yarn frame for a certain number of turns, a twisted yarn is formed. After the twisting is completed, the yarn knotting operation is required. The traditional yarn knotting device clamps the yarn with a clamping hook head with scissors to rotate it into a circle, and then the scissors cut the tail yarn to form a knot. Although the mechanism is simple, it is not suitable for knotting coarse and multi-strand yarns because the hook head is small and the opening angle of the hook head clamp and the scissors cannot be too large. In addition, because its loop is relatively small, it is not easy for the tail yarn to pass through the circle, resulting in low knotting reliability. Summary of the invention

[0004] The object of the present invention is to provide a knotting device for an automatic twisting machine to improve the reliability of automatic knotting.

[0005] The technical solution adopted by the present invention is: a knotting device for an automatic shaking machine, which includes a knotting head, a wire hook, a knockout push rod, a knotting rocker, a wire pulling rocker, scissors, an upper baffle and a lower baffle. The knotting head, wire hook and knockout push rod cooperate with each other, and the knotting head and the knockout push rod are rotatable relative to the wire hook, and at the same time, the knotting head and the wire hook are telescopic relative to the knockout push rod. The wire pulling rocker, scissors and upper baffle are arranged above the knotting head, wire hook and knockout push rod, and the knotting rocker and lower baffle are arranged below the knotting head, wire hook and knockout push rod.

[0006] Furthermore, the rotating shaft section of the knotting head is installed in the sliding sleeve, and can rotate and telescopically slide in the sliding sleeve. The untying push rod is installed on the rotating shaft section of the knotting head through a sliding groove and rotates with the knotting head.

[0007] Furthermore, the shaft section of the knotting head is an internal hollow structure, and the wire hook is telescopically arranged inside the shaft.

[0008] Furthermore, the knotting head is in an "L"-shaped structure, and the knotted thread head at its end is inclined inward and becomes thinner from thick to thin, so as to facilitate the subsequent unhooking of the thread head.

[0009] Furthermore, the wire-shifting rocker is rotatably arranged below the upper baffle, and an elbow is provided at the end thereof for facilitating wire shifting.

[0010] Furthermore, the untangling rocker is rotatably arranged above the lower baffle plate, and an elbow is provided at the end thereof for facilitating untangling.

[0011] Furthermore, the outer end surfaces of the upper baffle and the lower baffle are in a V-shaped structure, which is convenient for gathering and binding the stranded wires.

[0012] The beneficial effects of the present invention are as follows: the device is used to realize the automatic knotting function of the fully automatic twisting machine for binding the stranded wire. Compared with other knotting devices, the knotting device separates the looping, clamping and scissors, so that not only can the looping, looping, cutting and tightening be well performed, but also the knotting adaptability to the thick count and multi-strand yarn is better, and the knotting quality is more reliable.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the device;

[0015] Figures 2 to 5 is a schematic diagram of the knotting process of the device ( Figure 1 Right side cross-sectional view);

[0016] Marked in the figure: 1. knotting head, 2. wire hook, 3. unhooking push rod, 4. knot unhooking rocker, 5. wire pulling rocker, 6. scissors, 7. lower baffle, 8. upper baffle, 9. tied twisted wire, 9-1. front end tied twisted wire between the lower baffle and the knotting head, 9-2. tail end tied twisted wire between the knotting head and the upper baffle. DETAILED DESCRIPTION

[0017] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 As shown, a knotting device for an automatic shaking machine includes a knotting head 1, a wire hook 2, a knockout push rod 3, a knotting rocker 4, a wire pulling rocker 5, a scissors 6, an upper baffle 8 and a lower baffle 7. The knotting head 1, the wire hook 2 and the knockout push rod 3 cooperate with each other, and the knotting head 1 and the knockout push rod 3 are rotatable relative to the wire hook 2, and the knotting head 1 and the wire hook 2 are telescopic relative to the knockout push rod 3. The wire pulling rocker 5, the scissors 6 and the upper baffle 8 are arranged above the knotting head 1, the wire hook 2 and the knockout push rod 3, and the knotting rocker 4 and the lower baffle 7 are arranged below the knotting head 1, the wire hook 2 and the knockout push rod 3.

[0019] In this embodiment, the rotating shaft section of the knotting head 1 is installed in the sliding sleeve, and it can rotate and telescopically slide in the sliding sleeve. The unhooking push rod 3 is installed on the rotating shaft section of the knotting head 1 through a sliding groove, and rotates with the knotting head 1. At the same time, the other end of the unhooking push rod 3 can be rotatably engaged. When the knotting head 1 telescopically slides, it will not telescopically move with the knotting head 1. In addition, the rotating shaft section of the knotting head 1 is an internal hollow structure, and the wire hook 2 is telescopically arranged in the rotating shaft and the wire hook 2 faces the side of the tied strand, such as Figure 1 Center line hook 2 to the right, Figure 2 Center line hook 2 faces inward.

[0020] In this embodiment, the knotting head 1 is in an "L"-shaped structure, and the knotted wire head at its end is tilted inward and becomes thinner, which is convenient for the wire head to be unhooked later. The wire-pulling rocker 5 can be rotatably arranged below the upper baffle 8, and a bend is provided at its end for facilitating the wire pulling. The knot-releasing rocker 4 can be rotatably arranged above the lower baffle 7, and a bend is provided at its end for facilitating the wire removal. The outer end surfaces of the upper baffle 8 and the lower baffle 7 are in a V-shaped structure, which is convenient for gathering and binding the stranded wires.

[0021] The working process of the device is as follows: first, the yarn restraining device is used to gather the multiple strands of the binding wire 9 and closely fit between the lower baffle 7 and the upper baffle 8. The gathering point of the lower baffle 7 should be closer to the front than the gathering point of the upper baffle 8, so that the multiple strands of the yarn 9 are in an inclined state, so that the knotting head can completely hook the binding wire 9. At this time, the knotting head is located on the right side of the binding wire 9, such as Figure 1 , Figure 2 shown.

[0022] Then the knotting head starts to rotate counterclockwise for one circle, and the "L"-shaped knotting head can hook the inclined binding strand 9 and form a loop. Figure 3 As shown. After the loop is formed, the knotting head continues to rotate, but at the same time moves axially backward, so that when the knotting head rotates for the second circle, it can be located behind the gathering point of the tied strands to the upper baffle 8. At this time, the wire hook 2 and the wire-pushing rocker 5 also start to move. The wire hook 2 moves forward axially, beyond the knotting head and exposes the wire hook to prepare for hooking the wire, while the wire-pushing rocker 5 rotates on a fixed axis. The movement of the wire-pushing rocker 5 has two purposes: one is to pull the tail end of the tied strand 9-2 into the wire hook 2, and the other is to send the tied strand 9 to the scissors mouth of the scissors 6 to prepare for cutting. After the tied strand 9 is pulled into the wire hook 2, the knotting head also moves to the rear end. Since the drag ring push rod 3 remains stationary in the axial direction, the axial movement of the knotting head causes the drag ring push rod 3 to push the previously formed loop out of the knotting head shaft neck to form a loop unhooking, as shown in FIG. Figure 4 shown.

[0023] Finally, the blades of the scissors 6 are closed to cut the tail-end stranded wire 9-2. Figure 5When the second circle is halfway rotated, on the one hand, the knotting head 1 makes forward axial movement, and the wire hook 2 hooks the tail end of the tied strand 9-2 and makes backward axial movement, so that the tail end of the tied strand 9 passes through the ring that has been detached from the shaft neck to form a knot; on the other hand, the hook mouth of the knotting head 1 rotates to be close to the untying rocker 4, and the untying rocker 4 makes a fixed axis rotation, dragging the front end of the tied strand 9-1 to move backward, and under the action of the lower baffle 7 and the knotting head 1 moving outward, the formed knot is removed from the knotting head 1. The tail end of the tied strand still trapped in the wire hook 2 is also pulled out, and the formed knot is tightened at the same time to ensure the reliability of the knotting of the device. At this point, the knotting movement ends, the knotting head 1 continues to rotate the second half of the circle, and the various components return to the initial position to prepare for the next knotting.

[0024] The cut tail yarns can be collected into a waste yarn box by a negative pressure generator, and all actions of the device can be driven by the same power, which is convenient for installation and disassembly and also beneficial for the later maintenance of the knotting device.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the protection scope of the present invention in any form, and all technical solutions obtained by equivalent replacement and the like fall within the protection scope of the present invention.

[0026] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.

Claims

1. A knotting device for an automatic twisting machine, characterized in that: It comprises a knotting head, a wire hook, a knock-off push rod, a knot-off rocker, a wire-pulling rocker, a scissors, an upper baffle and a lower baffle, wherein the knotting head, the wire hook and the knock-off push rod cooperate with each other, the knotting head and the knock-off push rod are rotatably arranged relative to the wire hook, and the knotting head and the wire hook are telescopically arranged relative to the knock-off push rod, the wire-pulling rocker, the scissors and the upper baffle are arranged above the knotting head, the wire hook and the knock-off push rod, and the knot-pulling rocker and the lower baffle are arranged below the knotting head, the wire hook and the knock-off push rod; The rotating shaft section of the knotting head is installed in the sliding sleeve, and can rotate and telescopically slide in the sliding sleeve. The unhooking push rod is installed on the rotating shaft section of the knotting head through a sliding groove and rotates with the knotting head; the rotating shaft section of the knotting head is an inner hollow structure, and the wire hook is telescopically arranged in the rotating shaft; the knotting head is an "L"-shaped structure, and the knotting head at its end is inclined inward and changes from thick to thin, which is convenient for the later unhooking of the wire head; The operation method of the knotting device is as follows: firstly, the yarn restraining device is used to gather the multiple strands of the binding wire and closely attach them between the lower baffle and the upper baffle, and the gathering point of the lower baffle is closer to the front of the gathering point of the upper baffle so that the multiple strands of the yarn are in an inclined state, so that the knotting head can completely hook the binding wire; Then the knotting head starts to rotate counterclockwise for one circle, and the "L"-shaped knotting head hooks the inclined binding wire and forms a loop. After the loop is formed, the knotting head continues to rotate, but at the same time moves axially backward, so that when the knotting head rotates for the second circle, it is located behind the gathering point of the binding wire to the upper baffle; at this time, the wire hook and the wire-pulling rocker also start to move, and the wire hook moves forward along the axial direction, exceeds the knotting head and exposes the wire hook to prepare for hooking the wire, while the wire-pulling rocker rotates on a fixed axis; when the binding wire is pulled into the wire hook, the knotting head also moves to the rear end, and the axial movement of the knotting head causes the dragging ring push rod to push the previously formed ring out of the knotting head shaft neck to form a loose ring; Finally, the blades of the scissors close and cut the tail end of the twisted wire; at this time, when the second circle is halfway rotated, on the one hand, the knotting head makes a forward axial movement, and the wire hook hooks the tail end of the twisted wire and makes a backward axial movement, so that the tail end of the twisted wire passes through the circle that has been detached from the shaft neck to form a knot; on the other hand, the hook mouth of the knotting head rotates close to the knot-releasing rocker, and the knot-releasing rocker makes a fixed-axis rotation, dragging the front end of the twisted wire to move backward, and under the action of the lower baffle and the outward moving knotting head, the formed knot is removed from the knotting head, and the tail end of the twisted wire still retained in the wire hook is also pulled out, and the formed knot is tightened at the same time to ensure the reliability of the knotting of the device. At this point, the knotting movement ends, the knotting head continues to rotate the second half of the circle, and each component returns to the initial position to prepare for the next knotting.

2. A knotting device for an automatic twisting machine according to claim 1, characterized in that: The wire-shifting rocker is rotatably arranged below the upper baffle plate, and an elbow is arranged at the end thereof for facilitating wire shifting.

3. A knotting device for an automatic twisting machine according to claim 1, characterized in that: The untangling rocker is rotatably arranged above the lower baffle plate, and an elbow is arranged at the end thereof for facilitating untangling.

4. A knotting device for an automatic twisting machine according to claim 1, characterized in that: The outer end surfaces of the upper baffle and the lower baffle are in a V-shaped structure, which is convenient for gathering and binding the stranded wires.

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