Direct twisting machine

Abstract

The utility model relates to a straight twisting machine which comprises a rack and a straight twisting assembly, the straight twisting assembly comprises a creel, a winding assembly and a yarn barrel, the straight twisting assembly comprises an overfeeder and a yarn feeding tensioner, the rack comprises a main frame, a table top and a vertical frame, the winding assembly comprises a winding shaft, a traverse unit, a winding guide wheel set and a winding motor, and the traverse unit and the winding shaft are connected to the same winding motor in a driving mode. Each winding motor independently controls the winding shaft, the winding motors can be conveniently and accurately selected, meanwhile, each straight twisting assembly can independently control starting and stopping, environmental protection performance is better, maintenance and replacement are convenient, the winding motor can be a motor with small power and rated voltage, the requirement for power supply is low, meanwhile, the power of the winding motor is small, and the winding motor is convenient to maintain and replace. When an accident occurs, the rolling shaft is very easy to stop rotating due to overload; and meanwhile, the winding shaft is arranged front and back, that is, one end of the winding shaft points to an operator, and when a winding accident occurs, the operator can separate the wound object from the winding shaft more easily in the axis direction of the winding shaft.

Description

Technical Field

[0001] The utility model relates to a cord fabric production device, in particular to a direct twister. Background Art

[0002] The direct twister belongs to industrial textile machinery, which mainly combines two filaments directly into cord fabric by doubling and twisting, and winds them into parallel bobbins for use in weaving cord fabric. It not only has a simple structure but also is convenient to operate. The existing direct twisters usually arrange the take-up shaft longitudinally, drive the take-up shaft to rotate through a machine head, and a plurality of direct twisting components are arranged in a row along the axis direction of the take-up shaft. Therefore, for the existing direct twisters, different power machine heads need to be selected according to the production line requirements at the beginning of purchase, and then the number of direct twisting components is configured. After the layout of the above-designed direct twister, it is difficult to rearrange the direct twisting components according to the site. The layout of the direct twister has strict requirements for the site. Due to the site limitations, it is usually difficult for the machine head and the number of direct twisting components to achieve a perfect match, resulting in an excess of the normal power of the machine head, and thus lower efficiency. To ensure the normal operation of the machine head, a 380V motor is usually used for the motor of the machine head, and the rotation torque of the take-up shaft is large. When an accident occurs, the damage is large, and it is also difficult to layout in places where it is difficult to obtain a 380V power supply. Since only the machine head generates power, the take-up shaft usually needs to cooperate with a friction type wire arranging mechanism, and the wire arranging of this wire arranging mechanism is not neat enough. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a direct twister.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a direct twister, including a frame, a direct twisting component arranged on the frame, the direct twisting component includes a yarn frame, a take-up component arranged on the frame, a yarn barrel arranged on the frame, the direct twisting component further includes an overfeed machine and a wire feeding tensioner arranged on the frame, the frame includes a main frame, a tabletop arranged on the top of the main frame, and an upright frame arranged on the top of the back of the main frame, the take-up component is arranged on the upright frame, the take-up component includes a take-up shaft extending forward and backward, a wire arranging device arranged on the upright frame, a take-up wire guiding wheel group arranged on the upright frame, and a take-up motor arranged on the frame, the wire arranging device and the take-up shaft are driven and connected to the same take-up motor, and the yarn barrel is arranged inside the main frame.

[0005] As a further improvement of this design, the overfeed machine includes an overfeed machine housing disposed on the tabletop, a first overfeed roller and a second overfeed roller arranged front and back on the overfeed machine housing, a wire pressing arm disposed on the overfeed machine housing, a wire pressing roller rotatably connected to the wire pressing arm, and an overfeed motor for driving the first overfeed roller and the second overfeed roller to rotate. The overfeed motor is connected to the first overfeed roller and the second overfeed roller through a safety coupling. The rotation axis of the wire pressing roller is parallel to the rotation axis of the first overfeed roller, and the rotation axis of the second overfeed roller is parallel to the rotation axis of the first overfeed roller. The wire pressing arm has a first position and a second position. When the wire pressing arm is in the first position, the wire pressing roller presses on the cord fabric between the first overfeed roller and the second overfeed roller. When the wire pressing roller is in the second position, the wire pressing roller does not contact the cord fabric between the first overfeed roller and the second overfeed roller.

[0006] As a further improvement of this design, the yarn rack includes a base disposed on the vertical frame, a first rod and a second rod with one end rotatably connected to the base, a connecting seat rotatably connected to the ends of the first rod and the second rod, a yarn rod and a yarn guiding rod disposed on the connecting seat. The first rod is parallel to the second rod. The yarn rod is provided with a main yarn disc and a spare yarn disc. The yarn guiding rod is provided with a yarn guiding assembly. A tension spring is provided between the base and the connecting seat. One end of the tension spring is connected to the rotation axis of the first rod and the base, and the other end of the tension spring is connected to the rotation axis of the second rod and the base.

[0007] As a further improvement of this design, the yarn guiding assembly includes a yarn guiding bracket which has a horizontal portion and a vertical portion. The horizontal portion is provided with a first yarn guiding tube, and the vertical portion is provided with a second yarn guiding tube and a transition wheel.

[0008] As a further improvement of this design, the wire arranging device is a lead screw reciprocating wire arranging device. A wire pressing and guiding roller is provided at the front end of the wire arranging device. A first wire arranging optical axis is provided above the wire arranging device. One end of the first wire arranging optical axis is connected to the vertical frame. The first wire arranging optical axis is an arc-shaped axis, and the protruding portion of the first wire arranging optical axis points to the middle of the winding shaft. The winding shaft is located below the wire pressing and guiding roller.

[0009] As a further improvement of this design, a tension swing arm is also rotatably connected to the vertical frame. A tension sensor is connected to the rotating shaft of the tension swing arm. One end of the tension swing arm is rotatably connected to a tension guiding wheel. The winding wire guiding wheel group includes a third winding guiding wheel and a second winding guiding wheel arranged side by side, and a first winding guiding wheel located below the second winding guiding wheel. The tension guiding wheel is located below and between the second winding guiding wheel and the third winding guiding wheel.

[0010] As a further improvement of this design, a reversing wheel is provided on the tabletop, and the reversing wheel is located between the first winding guide wheel and the overfeed machine.

[0011] As a further improvement of this design, the direct twisting assembly further includes a yarn feeding bobbin and a yarn feeding guide wheel. The yarn feeding guide wheels are arranged left and right below the yarn barrel. The top of the yarn feeding bobbin extends below the yarn feeding tensioner, and the bottom of the yarn feeding bobbin extends to one of the yarn feeding guide wheels.

[0012] As a further improvement of this design, the winding motor is respectively drivingly connected to the winding shaft and the wire arranging device through a synchronous pulley group.

[0013] As a further improvement of this design, at least two direct twisting assemblies are provided on the frame, and the direct twisting assemblies are arranged left and right on the frame.

[0014] The beneficial effects of the present utility model are as follows: The present utility model controls each winding shaft through a separate winding motor, which is convenient for accurately selecting the type of the winding motor. At the same time, each direct twisting assembly can be independently controlled to start and stop, with better environmental protection and convenient for maintenance and replacement. The winding motor can select a motor with a smaller power and rated voltage, such as a civilian 220V, with a low power supply requirement. At the same time, when an accident occurs due to the small power of the winding motor, the winding shaft is easily stopped from rotating due to overload; at the same time, the winding shafts are arranged front and back, that is, one end of the winding shaft points to the operator. When a winding accident occurs, it is easier for the operator to separate the wound object from the winding shaft along the axis direction of the winding shaft. The winding shaft controlled separately by the winding motor makes the tension of the wound cord stable and improves the doubling twisting accuracy. Description of the Drawings

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model.

[0017] Figure 2 It is a schematic three-dimensional diagram of the overfeed machine of the present utility model.

[0018] Figure 3 It is a schematic side view of the yarn rack of the present utility model.

[0019] Figure 4 It is a schematic three-dimensional structure diagram of the yarn guiding assembly of the present utility model.

[0020] Figure 5 It is a schematic rear view of the whole of the present utility model.

[0021] In the figure, 1. frame, 10. main frame, 11. table top, 12. vertical frame, 2. winding assembly, 21. winding shaft, 22. wire arranging device, 23. winding wire guiding wheel set, 24. winding motor, 230. first winding guide wheel, 231. second winding guide wheel, 232. third winding guide wheel, 3. overfeeding machine, 30. overfeeding machine housing, 31. pressure roller, 32. pressure arm, 33. first overfeeding roller, 34. second overfeeding roller, 35. overfeeding motor, 4. wire feeding tensioner, 5. yarn rack, 50. base, 51. tension spring, 52. first rod, 53. second rod, 54. connecting seat, 55. yarn guiding rod, 56. yarn rod, 57. main yarn bobbin, 58. spare yarn bobbin, 59. yarn guiding assembly, 590. yarn guiding bracket, 591. idler wheel, 592. first yarn guiding tube, 593. second yarn guiding tube, 6. pressure wire guiding roller, 7. first wire arranging optical axis, 8. tension swing arm, 9. tension guide wheel, 71. reversing wheel, 72. tension sensor, 73. synchronous pulley set, 74. spindle, 75. wire feeding yarn bobbin, 76. wire feeding guide wheel, 77. yarn barrel. Detailed implementation mode

[0022] The following will combine the accompanying drawings and specific embodiments to detail the present invention. The illustrative embodiments and explanations are only used to explain the present invention, but not to limit the present invention. Embodiment

[0023] Please refer to Figure 1 , a direct twisting machine, including a frame 1, a direct twisting assembly arranged on the frame 1. The direct twisting assembly includes a yarn rack 5, a winding assembly 2 arranged on the frame 1, a yarn barrel 77 arranged on the frame 1. The direct twisting assembly further includes an overfeeding machine 3 and a wire feeding tensioner 4 arranged on the frame 1. The frame 1 includes a main frame 10, a table top 11 arranged on the top of the main frame 10, and a vertical frame 12 arranged on the top of the back of the main frame 10. The winding assembly 2 is arranged on the vertical frame 12. The winding assembly 2 includes a winding shaft 21 extending forward and backward, a wire arranging device 22 arranged on the vertical frame 12, a winding wire guiding wheel set 23 arranged on the vertical frame 12, and a winding motor 24 arranged on the frame 1. The wire arranging device 22 and the winding shaft 21 are driven and connected to the same winding motor 24. The yarn barrel 77 is arranged inside the main frame 10. The wire feeding tensioner 4 adopts a stepping motor wire feeder, and the wire feeding is more accurate, improving the direct twisting accuracy.

[0024] By separately controlling the winding shaft 21 through each winding motor 24 as described above, it is convenient to accurately select the type of the winding motor 24. At the same time, each direct twisting component can be separately controlled to start and stop, with better environmental protection, convenient for maintenance and replacement. The winding motor 24 can select a motor with a smaller power and 220V voltage, with a low power supply requirement, which is convenient to directly use civil 220V electricity, suitable for household workshops and enterprise electricity use. At the same time, when an accident occurs due to the small power of the winding motor 24, the winding shaft 21 is very easy to stop rotating due to overload. At the same time, the winding shafts 21 are arranged front and back, that is, one end of the winding shaft 21 points to the operator. When a winding accident occurs, it is easier for the operator to separate the wound object from the winding shaft 21 along the axis direction of the winding shaft 21. The overall equipment is small and has an independent power source, with a convenient layout. It can be arranged in a single-sided layout or a face-to-face arrangement. Each station realizes single-spindle single control, with less site restrictions, reducing the labor intensity of the operator and improving the operation convenience.

[0025] Please refer to Figure 2 , the overfeeding machine 3 includes an overfeeding machine housing 30 arranged on the table surface 11, a first overfeeding roller 33 and a second overfeeding roller 34 arranged front and back on the overfeeding machine housing 30, a wire pressing arm 32 arranged on the overfeeding machine housing 30, a wire pressing roller 31 rotatably connected to the wire pressing arm 32, and an overfeeding motor 35 for driving the first overfeeding roller 33 and the second overfeeding roller 34 to rotate. The overfeeding motor 35 is connected to the first overfeeding roller 33 and the second overfeeding roller 34 through a safety coupling. The rotation axis of the wire pressing roller 31 is parallel to the rotation axis of the first overfeeding roller 33, and the rotation axis of the second overfeeding roller 34 is parallel to the rotation axis of the first overfeeding roller 33. The wire pressing arm 32 has a first position and a second position; when the wire pressing arm 32 is in the first position, the wire pressing roller 31 presses on the cord between the first overfeeding roller 33 and the second overfeeding roller 34; when the wire pressing roller 31 is in the second position, the wire pressing roller 31 is not in contact with the cord between the first overfeeding roller 33 and the second overfeeding roller 34.

[0026] Please refer to Figure 3, the yarn rack 5 includes a base 50 disposed on the vertical rack 12, a first rod 52 and a second rod 53 rotatably connected to one end of the base 50, a connecting seat 54 rotatably connected to the ends of the first rod 52 and the second rod 53, a yarn rod 56 and a yarn guiding rod 55 disposed on the connecting seat 54. The first rod 52 is parallel to the second rod 53. A main yarn reel 57 and a spare yarn reel 58 are provided on the yarn rod 56, and a yarn guiding assembly 59 is provided on the yarn guiding rod 55. A tension spring 51 is provided between the base 50 and the connecting seat 54. One end of the tension spring 51 is connected to the rotation axis of the first rod 52 and the base 50, and the other end of the tension spring 51 is connected to the rotation axis of the second rod 53 and the base 50. A parallelogram mechanism is formed by the first rod 52, the second rod 53, the base 50 and the connecting seat 54, and the tension spring 51 is used to reset the parallelogram mechanism. Manually pulling the yarn rod 55 makes the main yarn reel 57 and the spare yarn reel 58 descend, facilitating yarn loading and improving the yarn loading efficiency; the parallelogram mechanism ensures that the main yarn reel 57 and the spare yarn reel 58 do not tip over during the lifting and lowering process of the yarn rack 5, preventing the yarn bobbin from slipping off the main yarn reel 57 or the spare yarn reel 58. The connection position of the tension spring 51 reduces the force required to pull down the yarn rack 5 on the premise of ensuring the self-resetting ability of the yarn rack 5.

[0027] Please refer to Figure 4 , the yarn guiding assembly 59 includes a yarn guiding bracket 590, which has a horizontal part and a vertical part. A first yarn guiding tube 592 is provided on the horizontal part, and a second yarn guiding tube 593 and a transition wheel 591 are provided on the vertical part, facilitating the smooth introduction of the cord into the wire feeding tensioner 4. The surface tension of the cord is stable, and the lifting and lowering of the yarn guiding assembly will not cause the cord to entangle.

[0028] Please refer to Figure 1 , the wire arranging device 22 is a lead screw reciprocating wire arranging device 22. A wire pressing and guiding roller 6 is provided at the front end of the wire arranging device 22, and a first wire arranging optical axis 7 is provided above the wire arranging device 22. One end of the first wire arranging optical axis 7 is connected to the vertical rack 12. The first wire arranging optical axis 7 is an arc-shaped axis, and the convex part of the first wire arranging optical axis 7 points to the middle of the winding shaft 21. The winding shaft 21 is located below the wire pressing and guiding roller 6. The lead screw reciprocating wire arranging device 22 can arrange wires precisely, and the quality of the wound wire coil is good. The wire pressing and guiding roller 6 facilitates the stable entry of the cord into the wire coil, further improving the winding quality. The arc-shaped setting of the first wire arranging optical axis 7 facilitates compensating for the distance change between the wire arranging device 22 and the winding and guiding pulley group 23, improving the wire arranging quality. At the same time, the wire arranging device and the overfeed machine can accurately control the direct twisting speed of the cord and the surface tension of the cord, thereby improving the direct twisting accuracy.

[0029] Please refer to Figure 1, a tension swing arm 8 is also rotatably connected to the vertical frame 12. A tension sensor 72 is connected to the rotating shaft of the tension swing arm 8. One end of the tension swing arm 8 is rotatably connected to a tension guide wheel 9. The wire winding wheel set 23 includes a third winding guide wheel 232 and a second winding guide wheel 231 arranged side by side from left to right, and a first winding guide wheel 230 located below the second winding guide wheel 231. The tension guide wheel 9 is located below and between the second winding guide wheel 231 and the third winding guide wheel 232. The swinging tension swing arm 8 is used to transmit the tension signal of the cord to the tension sensor 72, thereby controlling the winding speed and the speed of the overfeed machine 3, ensuring the stability of the cord winding tension, improving the winding quality. At the same time, the tension guide wheel 9 is arranged at the end of the tension swing arm 8, which can amplify the feedback of the tension and improve the tension detection accuracy.

[0030] Please refer to Figure 1 , a reversing wheel 71 is provided on the table 11. The reversing wheel 71 is located between the first winding guide wheel 230 and the overfeed machine 3. It is convenient to stably guide the cord to the first winding guide wheel 230 and facilitate the layout of each component.

[0031] Please refer to Figure 1 , the direct twisting assembly further includes a wire feeding bobbin 75 and a wire feeding guide wheel 76. The wire feeding guide wheels 76 are arranged side by side below the yarn bobbin 77. The top of the wire feeding bobbin 75 extends below the wire feeding tensioner 4, and the bottom of the wire feeding bobbin 75 extends to one of the wire feeding guide wheels 76. The cord is smoothly guided to the spindle 74 of the yarn bobbin 77 through the wire feeding bobbin 75 and the wire feeding guide wheel 76, effectively reducing the wear of the cord during the wire feeding process, and at the same time making the wire feeding smoother.

[0032] Please refer to Figure 5 , the winding motor 24 is respectively drivingly connected to the winding shaft 21 and the wire arranging device 22 through a synchronous pulley set 73, which can make the winding shaft 21 and the wire arranging device 22 move synchronously, with high wire arranging accuracy and reduced power sources. When the power stops, the winding and wire arranging components stop synchronously, reducing the control system.

[0033] Please refer to Figure 1 , at least two direct twisting assemblies are provided on the frame 1. The direct twisting assemblies are arranged side by side on the frame 1. The direct twisting of more than three strands of cord can be realized through the series connection of at least two direct twisting assemblies.

[0034] During operation, a bobbin of cord fabric is placed in the yarn bobbin 77, and another bobbin of cord fabric is placed on the main yarn bobbin 57. The cord fabric on the main yarn bobbin 57 passes through the first yarn guide tube 592, the idler pulley 591, and the second yarn guide tube 593 in sequence and then enters the wire feeding tensioner 4. The wire feeding tensioner 4 can be a magnetic tensioner. After passing through the wire feeding tensioner 4, the cord fabric passes through the wire feeding yarn bobbin 75, the wire feeding guide pulley 76, and enters the even-twisting device together with the cord fabric in the yarn bobbin 77. The cord fabric passing through the even-twisting device enters the overfeed machine 3. After passing through the overfeed machine 3, the cord fabric after twisting enters the winding wire guiding wheel set 23 through the reversing pulley 71. After passing through the winding wire guiding wheel set 23, the cord fabric passes through the first wire arranging optical axis 7, the wire arranging device 22, and the wire pressing and guiding roller 6 in sequence and enters the winding shaft 21 for winding.

[0035] When multiple strands of cord fabric need to be twisted together, the cord fabric after the first twisting directly enters the wire feeding tensioner 4 of the next direct-twisting assembly, and then the second twisting operation is carried out in the next direct-twisting assembly.

[0036] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A direct twisting machine, comprising a frame, a direct twisting assembly arranged on the frame, the direct twisting assembly including a yarn rack, a winding assembly arranged on the frame, and a yarn barrel arranged on the frame, characterized in that, The direct twisting assembly further includes an overfeed machine and a wire feeding tensioner disposed on the frame. The frame includes a main frame, a tabletop disposed on the top of the main frame, and an upright frame disposed on the top of the back of the main frame. The winding assembly is disposed on the upright frame and includes a winding shaft extending forward and backward, a wire arranging device disposed on the upright frame, a winding wire guiding wheel set disposed on the upright frame, and a winding motor disposed on the frame. The wire arranging device and the winding shaft are driven and connected to the same winding motor. The yarn bobbin is disposed inside the main frame.

2. The direct twisting machine according to claim 1, characterized in that, The overfeed machine includes an overfeed machine housing disposed on the tabletop, a first overfeed roller and a second overfeed roller arranged front and back on the overfeed machine housing, a wire pressing arm disposed on the overfeed machine housing, a wire pressing roller rotatably connected to the wire pressing arm, and an overfeed motor for driving the first overfeed roller and the second overfeed roller to rotate. The overfeed motor is connected to the first overfeed roller and the second overfeed roller through a safety coupling. The rotation axis of the wire pressing roller is parallel to the rotation axis of the first overfeed roller, and the rotation axis of the second overfeed roller is parallel to the rotation axis of the first overfeed roller. The wire pressing arm has a first position and a second position. When the wire pressing arm is in the first position, the wire pressing roller presses on the cord between the first overfeed roller and the second overfeed roller. When the wire pressing roller is in the second position, the wire pressing roller does not contact the cord between the first overfeed roller and the second overfeed roller.

3. A direct twisting machine according to claim 1, characterized in that, The yarn rack includes a base disposed on the upright frame, a first rod and a second rod with one end rotatably connected to the base, a connecting seat rotatably connected to the ends of the first rod and the second rod, a yarn rod and a yarn guiding rod disposed on the connecting seat. The first rod is parallel to the second rod. The yarn rod is provided with a main yarn disc and a spare yarn disc. The yarn guiding rod is provided with a yarn guiding assembly. A tension spring is disposed between the base and the connecting seat. One end of the tension spring is connected to the rotation axis of the first rod and the base, and the other end of the tension spring is connected to the rotation axis of the second rod and the base.

4. A direct twisting machine according to claim 3, characterized in that, The yarn guiding assembly includes a yarn guiding bracket having a horizontal portion and a vertical portion. The horizontal portion is provided with a first yarn guiding tube, and the vertical portion is provided with a second yarn guiding tube and a transition wheel.

5. A direct twisting machine according to claim 1, characterized in that, The wire arranging device is a lead screw reciprocating wire arranging device. A wire pressing and guiding roller is provided at the front end of the wire arranging device. A first wire arranging optical axis is provided above the wire arranging device. One end of the first wire arranging optical axis is connected to the upright frame. The first wire arranging optical axis is an arc-shaped axis, and the convex portion of the first wire arranging optical axis points to the middle of the winding shaft. The winding shaft is located below the wire pressing and guiding roller.

6. The direct twisting machine according to claim 1, characterized in that A tension swing arm is also rotatably connected to the upright frame. A tension sensor is connected to the rotating shaft of the tension swing arm. One end of the tension swing arm is rotatably connected to a tension guiding wheel. The winding wire guiding wheel set includes a third winding guiding wheel and a second winding guiding wheel arranged left and right, and a first winding guiding wheel located below the second winding guiding wheel. The tension guiding wheel is located between the second winding guiding wheel and the third winding guiding wheel and below them.

7. The direct twisting machine according to claim 6, characterized in that, A reversing wheel is provided on the tabletop and is located between the first winding guiding wheel and the overfeed machine.

8. A direct twisting machine according to claim 1, characterized in that, The direct twisting assembly further includes a yarn feeding bobbin and a yarn feeding guide pulley. The yarn feeding guide pulleys are arranged left and right below the yarn barrel. The top of the yarn feeding bobbin extends below the yarn feeding tensioner, and the bottom of the yarn feeding bobbin extends to one of the yarn feeding guide pulleys.

9. A direct twisting machine according to claim 1, characterized in that, The winding motor is respectively drivingly connected to the winding shaft and the wire arranging device through a synchronous pulley set.

10. A direct twisting machine according to claim 1, characterized in that, At least two direct twisting assemblies are provided on the frame, and the direct twisting assemblies are arranged and distributed left and right on the frame.

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