Yarn dropping prevention device for multi-strand yarn tensioner

Abstract

The utility model relates to the technical field of tensioners, in particular to a thread dropping prevention device for a multi-strand thread tensioner, which comprises a base, a vertical plate, at least two limiting shafts, a thread guide wheel, a first connecting frame and the tensioner, the vertical plate is mounted on the center line of the top of the base, and the limiting shafts are arranged on the vertical plate in a staggered manner. The limiting shaft is provided with at least two wire guide wheels, and the first connecting frame is movably connected with a tensioner. When the yarn breakage detector detects that the yarn is broken, the control unit controls the air cylinder to work, so that the push plate is driven to move upwards, the push plate pushes the wedge-shaped extrusion block to move upwards and extrudes the clamping plates, the clamping plates on the two sides move oppositely under the extrusion acting force, and therefore the yarn is clamped and fixed and prevented from falling off from the yarn guide wheel; and the reconnected yarns do not need to be wound on the yarn guide wheel again, so that the working efficiency of twisting and bonding the yarns is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioners, in particular to a line-dropping prevention device for a multi-strand line tensioner. Background Art

[0002] A multi-strand wire tensioner is a device specially used to control and adjust the tension of multi-strand wires. It plays a vital role in cable, textile and other industries that require precise control of wire tension.

[0003] In the production process of yarn, in order to enhance its performance, two or more single yarns are generally twisted and bonded into multiple strands through a doubling machine. When twisting and bonding the single yarns through the doubling machine, a multi-strand tensioner is usually used to adjust the yarn tension. However, the yarn is easily blocked and broken due to unwinding or foreign objects blocking the running path. After the yarn is broken, it needs to be reconnected and twisted again. The existing tensioner can adjust the yarn tension, but once the yarn breaks during the twisting operation, the wire wheel on the tensioner cannot fix the broken yarn, causing the staff to rewind the yarn along the wire wheel after reconnecting the broken yarn, thereby reducing the efficiency of yarn twisting and bonding.

[0004] Based on this, it is necessary to design an anti-dropping device for a multi-strand wire tensioner to improve the efficiency of the yarn twisting and bonding operation. Utility Model Content

[0005] The technical implementation scheme of the utility model is: a line-dropping prevention device for a multi-strand tensioner, comprising a base, a vertical plate, a limit shaft, a wire pulley, a connecting frame, a tensioner, a yarn break detector, a cylinder, a push plate, a connecting frame two, a clamping plate and a wedge-shaped extrusion block. A vertical plate is installed on the center line of the top of the base, and at least two limit shafts are staggeredly arranged on the vertical plate, and at least two wire pulleys are installed on the limit shaft. The tensioner is movably connected to the connecting frame one, and the wire pulley and the yarn break detector are arranged on the upper part of the tensioner. The yarn break detector is used to detect whether the yarn is broken, and the yarn is sequentially wound around the wire pulley on the tensioner and the wire pulley installed on the connecting frame one. The connecting frame two is installed on the wire pulley on a limit shaft, and two clamping plates are slidably connected to the transverse connecting piece of the connecting frame two, and a wedge-shaped extrusion block is slidably connected to the longitudinal connecting piece of the connecting frame two, and the push plate slidably arranged on the vertical plate contacts and cooperates with the wedge-shaped extrusion block, and a cylinder for driving the push plate to rise and fall is arranged on the vertical plate.

[0006] Furthermore, it also includes a top plate, a tension spring, a sliding frame, a threaded rod and a slider. The top plate is installed on the top of the vertical plate, and no less than two sliding frames are evenly installed on the bottom of the top plate. The sliding frame is rotatably connected to the threaded rod, and the slider is threadedly connected to the threaded rod. The upper part of the slider is slidably connected to the sliding frame, and a tension spring is arranged between the slider and the tensioner.

[0007] Furthermore, a compression spring is also included, and a compression spring is arranged between the two clamping plates.

[0008] Furthermore, a limiting block for limiting the position of the yarn is installed on the wire wheel.

[0009] Furthermore, a limit column is provided on one side of the top plate facing the tensioner, and the limit column is used to limit the adjustment degree of the tensioner.

[0010] Furthermore, fastening clamps for fixing the base are symmetrically arranged on both sides of the base with the vertical plate as the center.

[0011] Furthermore, the connecting frame is provided with fastening bolts for fixing the connecting frame to the limiting shaft.

[0012] The utility model has the following advantages: 1. When the yarn break detector detects that the yarn is broken, the control unit controls the cylinder to work, thereby driving the push plate to move up, and the push plate pushes the wedge-shaped extrusion block to move up and squeeze the clamping plate. The clamping plates on both sides move toward each other under the extrusion force, thereby clamping and fixing the yarn to prevent it from falling from the wire wheel. The reconnected yarn does not need to be rewound around the wire wheel, thereby improving the efficiency of yarn twisting and bonding.

[0013] 2. By rotating the threaded rod, the threaded rod drives the slider to move horizontally along the sliding frame. The sliding frame tightens or relaxes the tension spring, and drives the tensioner to rotate around the connection between it and the connecting frame through the tension spring, thereby adjusting the tension of the yarn by the tensioner, thereby adjusting the tightness of the yarn on the wire wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 The utility model is a three-dimensional structural schematic diagram of the wire pulley, the connecting frame and the fastening bolts.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the tensioner and yarn breakage detector of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the second connecting frame, the clamping plate, the compression spring and the wedge-shaped extrusion block of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the top plate, sliding frame, threaded rod and sliding block of the utility model.

[0019] In the above drawings: 1: base, 2: vertical plate, 3: top plate, 4: limiting shaft, 5: wire wheel, 51: limiting block, 52: connecting frame 1, 53: fastening bolt, 6: tensioner, 61: tension spring, 7: yarn break detector, 71: control console, 8: cylinder, 9: push plate, 10: connecting frame 2, 101: clamping plate, 102: compression spring, 11: wedge-shaped extrusion block, 12: limiting column, 13: sliding frame, 131: threaded rod, 132: slider, 14: fastening clamp. DETAILED DESCRIPTION

[0020] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] Embodiment: A wire-drop prevention device for a multi-strand wire tensioner, such as Figure 1-Figure 4As shown, it includes a base 1, a vertical plate 2, a limit shaft 4, a wire wheel 5, a connecting frame 1 52, a tensioner 6, a yarn broken wire detector 7, a cylinder 8, a push plate 9, a connecting frame 2 10, a clamp 101, a compression spring 102 and a wedge-shaped extrusion block 11. The vertical plate 2 is installed on the top center line of the base 1. The base 1 is symmetrically provided with fastening clamps 14 on both sides of the vertical plate 2 as the center to facilitate fixing the base 1. Five limit shafts 4 are staggered and rotatably installed on the vertical plate 2. Four wire wheels 5 are installed on the limit shaft 4. The wire wheels 5 on different limit shafts 4 are connected to the connecting frame The connecting frame 52 is connected as a whole, and a fastening bolt 53 is provided on the connecting frame 52 for fixing the connecting frame on the limiting shaft 4. The position of the connecting frame 52 on the limiting shaft 4 is adjusted by the fastening bolt 53, so as to adjust the distance between the two adjacent wire wheels 5, thereby adjusting the distance between the two adjacent yarns. The wire wheel 5 is installed with a limit block 51 for limiting the yarn to prevent the yarn from falling from the wire wheel 5. The connecting frame 52 is rotatably connected with a tensioner 6. The upper part of the tensioner 6 is provided with a wire wheel 5 and a yarn broken wire detector 7. The yarn broken wire detector 7 is used to detect the yarn Whether the line is broken, the yarn passes through the yarn broken wire detector 7, and the yarn is wound around the wire wheel 5 on the tensioner 6 and the wire wheel 5 installed on the connecting frame 1 52 in turn. The wire wheel 5 on the limit shaft 4 below the tensioner 6 is installed with a connecting frame 2 10, and two clamping plates 101 are slidably connected to the transverse connecting piece of the connecting frame 2 10. The opposite sides of the two clamping plates 101 are provided with anti-skid pads that increase the friction coefficient. A compression spring 102 is arranged between the two clamping plates 101. The compression spring 102 is wound around the transverse connecting piece of the connecting frame 2 10. The compression spring 102 is realized by The two clamps 101 have the function of quickly returning to their original position when they lose the extrusion force. A wedge-shaped extrusion block 11 is slidably connected to the longitudinal connecting piece of the connecting frame 10. A push plate 9 slidably arranged on the vertical plate 2 contacts and cooperates with the wedge-shaped extrusion block 11. A cylinder 8 for driving the push plate 9 to rise and fall is arranged on the vertical plate 2. When the piston rod of the cylinder 8 extends upward, the piston rod of the cylinder 8 drives the push plate 9 to move upward. The push plate 9 moves upward and pushes the wedge-shaped extrusion block 11 to squeeze the clamp 101 upward. After being squeezed, the clamp 101 moves horizontally toward each other along the transverse connecting piece of the connecting frame 10, thereby clamping the yarn.

[0022] like Figure 1 and Figure 5As shown, it also includes a top plate 3, a tension spring 61, a sliding frame 13, a threaded rod 131 and a slider 132. The top plate 3 is installed on the top of the vertical plate 2, and a control console 71 is arranged on the top of the top plate 3. Four sliding frames 13 are evenly spaced and installed on the bottom of the top plate 3. The sliding frame 13 is an n-shaped structure. The threaded rod 131 is rotatably connected to the sliding frame 13, and the slider 132 is threadedly connected to the threaded rod 131. The upper part of the slider 132 is slidably connected to the sliding frame 13. A tension spring 61 is arranged between the slider 132 and the tensioner 6. One end of the tension spring 61 is connected to the slider 132, and the other end of the tension spring 61 is connected to the lower part of the tensioner 6. A limiting column 12 is arranged on the side of the top plate 3 facing the tensioner 6. The limiting column 12 is used to limit the distance that the tensioner 6 is pulled backward to prevent it from being over-adjusted.

[0023] When in use, each yarn is wound from top to bottom in sequence through the wire wheel 5 on the tensioner 6, the yarn break detector 7 and the wire wheel 5 on the connecting frame 52 (such as Figure 1 As shown in the figure, according to the tightness of the yarn on the guide wheel 5, by rotating the threaded rod 131, the slider 132 moves horizontally along the sliding frame 13, thereby adjusting the orientation of the tension spring 61, and adjusting the tensioner 6 forward and backward through the tension spring 61, so as to adjust the tension of the yarn; the tightness of the yarn is monitored by the yarn break detector 7. Once the yarn breaks, the yarn break detector 7 transmits the signal to the control unit, and the control unit controls the cylinder 8 to work, and the piston rod of the cylinder 8 extends upward, thereby pushing the push plate 9 to move upward, and the push plate 9 moves upward. The movable wedge-shaped extrusion block 11 moves upward, and the wedge-shaped extrusion block 11 moves up to squeeze the clamping plate 101. The clamping plates 101 on both sides are forced to move in opposite directions and compress the compression spring 102, thereby clamping the yarn to prevent the yarn from falling off the wire wheel 5; at the same time, the control unit controls the equipment to cut off the power. At this time, the staff can connect the broken yarn, and then control the cylinder 8 to reset through the control console 71. Under the action of the elastic force of the compression spring 102, the clamping plate 101 is reset, thereby achieving the effect of preventing the yarn on the multi-strand tensioner 6 from falling off, thereby improving the efficiency of yarn twisting and bonding.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A device for preventing a multi-strand tensioner from dropping a line, comprising a base (1), a vertical plate (2), a limiting shaft (4), a guide wheel (5), a connecting frame (52), a tensioner (6) and a yarn break detector (7), wherein a vertical plate (2) is installed on the top center line of the base (1), at least two limiting shafts (4) are staggeredly arranged on the vertical plate (2), at least two guide wheels (5) are installed on the limiting shaft (4), a tensioner (6) is movably connected to the connecting frame (52), a guide wheel (5) and a yarn break detector (7) are arranged on the upper part of the tensioner (6), the yarn break detector (7) is used to detect whether the yarn is broken, and the yarn is sequentially wound around the guide wheel (5) on the tensioner (6) and the guide wheel (5) installed on the connecting frame (52), wherein the device is characterized in that: It also includes a cylinder (8), a push plate (9), a second connecting frame (10), a clamping plate (101) and a wedge-shaped extrusion block (11). The second connecting frame (10) is installed on the guide wheel (5) on a limit shaft (4). Two clamping plates (101) are slidably connected to the transverse connecting member of the second connecting frame (10). The wedge-shaped extrusion block (11) is slidably connected to the longitudinal connecting member of the second connecting frame (10). The push plate (9) slidably arranged on the vertical plate (2) contacts and cooperates with the wedge-shaped extrusion block (11). The vertical plate (2) is provided with a cylinder (8) for driving the push plate (9) to rise and fall.

2. A wire-dropping prevention device for a multi-strand wire tensioner according to claim 1, characterized in that: The invention also comprises a top plate (3), a tension spring (61), a sliding frame (13), a threaded rod (131) and a slider (132); the top plate (3) is installed on the top of the vertical plate (2); at least two sliding frames (13) are evenly installed on the bottom of the top plate (3); the sliding frame (13) is rotatably connected with the threaded rod (131); the threaded rod (131) is threadedly connected with the slider (132); the upper part of the slider (132) is slidably connected with the sliding frame (13); and a tension spring (61) is arranged between the slider (132) and the tensioner (6).

3. A wire-dropping prevention device for a multi-strand wire tensioner according to claim 1, characterized in that: It also comprises a compression spring (102), and the compression spring (102) is arranged between the two clamping plates (101).

4. A wire-dropping prevention device for a multi-strand wire tensioner according to claim 1, characterized in that: A limiting block (51) for limiting the position of the yarn is installed on the guide wheel (5).

5. A wire-dropping prevention device for a multi-strand wire tensioner according to claim 1, characterized in that: A limiting column (12) is arranged on one side of the top plate (3) facing the tensioner (6), and the limiting column (12) is used to limit the adjustment degree of the tensioner (6).

6. A wire-dropping prevention device for a multi-strand wire tensioner according to claim 1, characterized in that: The base (1) is symmetrically provided with fastening clamps (14) on both sides centered on the vertical plate (2) for facilitating the fixing of the base (1).

7. A wire-dropping prevention device for a multi-strand wire tensioner according to claim 1, characterized in that: The first connecting frame (52) is provided with a fastening bolt (53) for facilitating fixing the connecting frame to the limiting shaft (4).

Images