A hard alloy stranded wire back-twisting machine

Abstract

The present invention relates to a hard alloy stranded wire detwist machine, comprising a frame, a detwist bin, a detwist cylinder, a detwist wheel, a guide wheel, a front guide wheel frame, a second guide wheel, a first guide wheel, a driven sprocket, a detwist motor, a driving sprocket, a transmission chain, an upper constant-speed wheel, a lower constant-speed wheel, a tension swing rod, a tension wheel, a counterweight, a locking bolt, a tail wheel frame, a tension detection wheel, a lead-out wheel, and a guide roller. A pressure sensor is connected between the tension detection wheel and the tail wheel frame, and the tension swing rod is rotatably connected to the frame. The present invention utilizes a rotating detwist cylinder and a detwist wheel to achieve repeated bending of the hard alloy stranded wire on the detwist wheel to completely eliminate the internal stress of the hard alloy stranded wire, repair the slight wire skipping and stranding of the hard alloy stranded wire, and prevent the hard alloy stranded wire from falling apart after being cut, and the hard alloy stranded wire after being processed from twisting. The upper constant-speed wheel and the lower constant-speed wheel are used to achieve a uniform linear speed of the detwist inverted shaft, and at the same time, the linear speed is matched with the rotation speed of the detwist cylinder, the lay length, and the detwist rate.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire stranding production equipment, in particular to a hard alloy stranding untwisting machine. Background Art

[0002] After the stranded wire is produced, residual stress will usually be left inside. The residual stress will cause defects such as wire skipping, stranding, loose strands and twisting. In order to solve the above defects, the stranded wire is usually processed by a detwisting machine. The existing detwisting machine usually uses a guide wheel detwisting machine to repeatedly bend the stranded wire to eliminate the stress of the stranded wire. However, the residual stress inside the hard alloy stranded wire is large, and the traditional guide wheel detwisting machine is difficult to completely eliminate the stress, and it is also unable to repair the defects of stranding and wire skipping. Summary of the invention

[0003] In view of the deficiencies in the prior art, an object of the present invention is to provide a hard alloy stranded wire untwisting machine.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a hard alloy stranded wire back-twisting machine, comprising a frame, a back-twisting bin arranged at the top center of the frame, a back-twisting cylinder rotatably connected to the front and rear ends of the back-twisting bin, a back-twisting wheel arranged in the middle of the back-twisting cylinder, guide wheels arranged at the left and right ends of the back-twisting cylinder, a front guide wheel frame arranged at the front side of the back-twisting bin, a second guide wheel arranged at the top of the front guide wheel frame, a first guide wheel arranged at the bottom of the front guide wheel, a driven sprocket arranged at the tail end of the back-twisting cylinder, a back-twisting motor arranged at the bottom of the frame, a driving sprocket arranged on the main shaft of the back-twisting motor, a transmission chain connecting the driving sprocket and the driven sprocket, an upper fixed-speed wheel arranged on the rear end frame of the back-twisting cylinder, and a lower fixed-speed wheel arranged on the upper fixed-speed wheel. A lower fixed-speed wheel on the frame below the speed wheel, a tension swing rod arranged on the frame between the upper fixed-speed wheel and the lower fixed-speed wheel, a tension wheel arranged at the tail end of the tension swing rod, a counterweight block sleeved on the tension swing rod and sliding along the tension swing rod, a locking bolt arranged on the counterweight block and with its head abutting against the tension swing rod, a tail wheel frame arranged behind the upper fixed-speed wheel and extending backward, a tension detection wheel arranged on the tail wheel frame, a lead-out wheel arranged on the tail wheel frame behind the tension detection wheel, a guide roller vertically arranged behind the lead-out wheel and arranged left and right, the axis of the guide roller is vertical, a pressure sensor is connected between the tension detection wheel and the tail wheel frame, the back-twist wheels are arranged front and back, and the tension swing rod is rotatably connected to the frame and extends horizontally left and right.

[0005] The above design uses a rotating backtwist cylinder and backtwist wheel to achieve repeated bending of the hard alloy strand on the backtwist wheel to completely eliminate the internal stress of the hard alloy strand. The rotating backtwist cylinder can be used to rotate the hard alloy strand, repair the slight wire skipping and stranding of the hard alloy strand, and the hard alloy strand will not be scattered after cutting, and the hard alloy strand will not be twisted after treatment. The upper and lower fixed-speed wheels are used to achieve a uniform linear speed of the backtwist inverted axis, and at the same time, the linear speed is matched with the backtwist cylinder rotation speed, lay length, and backtwist rate to prevent over-backtwist, resulting in single breakage, and incomplete backtwist, resulting in incomplete elimination of internal stress.

[0006] As a further improvement of the present design, the detwisting wheel is a multi-line groove wheel, which facilitates repeated winding of the hard alloy stranded wire on the detwisting wheel and releases the stress of the hard alloy stranded wire.

[0007] As a further improvement of the present design, a wire break detection sensor is provided on the frame between the upper fixed speed wheel and the lower fixed speed wheel. The wire break detection sensor is used to detect a twisted wire between the upper fixed speed wheel and the lower fixed speed wheel, so as to timely alarm when the wire is broken and prevent the occurrence of production accidents.

[0008] As a further improvement of the present design, the tension swing rod is provided with a ruler extending along the length direction of the tension swing rod, so as to facilitate intuitive and accurate adjustment of the tension of the tension swing rod.

[0009] As a further improvement of the present design, the detwist cylinder and the detwist bin are connected via a cylindrical roller bearing to improve the stability of the rotation of the detwist cylinder.

[0010] The beneficial effects of the present invention are as follows: the present invention utilizes a rotating backtwist cylinder and a backtwist wheel to achieve repeated bending of the hard alloy strand on the backtwist wheel to completely eliminate the internal stress of the hard alloy strand, realizes the rotation of the hard alloy strand by the rotating backtwist cylinder, repairs the slight wire skipping and stranding of the hard alloy strand, and does not loosen the hard alloy strand after cutting, and does not twist after treatment. The upper and lower fixed-speed wheels are used to achieve uniform linear speed of the backtwist inverted axis, and at the same time, the linear speed is matched with the backtwist cylinder rotation speed, the lay length, and the backtwist rate, so as to prevent the backtwist from being excessive, resulting in a single branch breakage, and the backtwist from being inadequate, resulting in incomplete elimination of internal stress. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is an overall cross-sectional schematic diagram of the present invention.

[0013] Figure 2 It is a schematic diagram of the connection between the tension detection wheel and the pressure sensor of the present invention.

[0014] In the figure, 1. frame, 2. front guide wheel frame, 3. first guide wheel, 4. back-twist motor, 5. driving sprocket, 6. transmission chain, 7. lower fixed-speed wheel, 8. tension wheel, 9. tension swing rod, 10. locking bolt, 11. counterweight, 12. ruler, 13. wire break detection sensor, 14. tail wheel frame, 15. tension detection wheel, 16. lead-out wheel, 17. guide roller, 18. upper fixed-speed wheel, 19. driven sprocket, 20. cylindrical roller bearing, 21. back-twist bin, 22. back-twist wheel, 23. guide wheel, 24. second guide wheel, 25. back-twist cylinder, 26. pressure sensor. DETAILED DESCRIPTION

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, wherein the illustrative embodiments and descriptions are only used to explain the present invention but are not intended to limit the present invention.

[0016] Embodiment: A hard alloy stranded wire back-twisting machine comprises a frame 1, a back-twisting bin 21 arranged at the top center of the frame 1, a back-twisting cylinder 25 rotatably connected to the front and rear ends of the back-twisting bin 21, a back-twisting wheel 22 arranged in the middle of the back-twisting cylinder 25, guide wheels 23 arranged at the left and right ends of the back-twisting cylinder 25, a front guide wheel 23 frame 2 arranged at the front side of the back-twisting bin 21, a second guide wheel 24 arranged at the top of the front guide wheel 23 frame 2, a first guide wheel 3 arranged at the bottom of the front guide wheel 23, a driven sprocket 19 arranged at the tail end of the back-twisting cylinder 25, a back-twisting motor 4 arranged at the bottom of the frame 1, a driving sprocket 5 arranged on the main shaft of the back-twisting motor 4, a transmission chain 6 connecting the driving sprocket 5 and the driven sprocket 19, an upper fixed-speed wheel 18 arranged on the frame 1 at the rear end of the back-twisting cylinder 25, and a transmission chain 6 arranged on the frame 1 below the upper fixed-speed wheel 18. The lower fixed speed wheel 7, the tension swing rod 9 arranged on the frame 1 between the upper fixed speed wheel 18 and the lower fixed speed wheel 7, the tension wheel 8 arranged at the tail end of the tension swing rod 9, the counterweight block 11 sleeved on the tension swing rod 9 and sliding along the tension swing rod 9, the locking bolt 10 arranged on the counterweight block 11 and the head of which abuts against the tension swing rod 9, the tail wheel frame 14 arranged behind the upper fixed speed wheel 18 and extending backward, the tension detection wheel 15 arranged on the tail wheel frame 14, the lead-out wheel 16 arranged on the tail wheel frame 14 behind the tension detection wheel 15, the guide roller 17 vertically arranged on the rear side of the lead-out wheel 16 and arranged left and right, the axis of the guide roller 17 is vertical, a pressure sensor 26 is connected between the tension detection wheel 15 and the tail wheel frame 14, the back-twist wheels 22 are arranged front and back, and the tension swing rod 9 is rotatably connected to the frame 1 and extends horizontally left and right.

[0017] The above design uses a rotating backtwist cylinder 25 and a backtwist wheel 22 to achieve repeated bending of the hard alloy strand on the backtwist wheel 22 to completely eliminate the internal stress of the hard alloy strand. The rotating backtwist cylinder 25 is used to rotate the hard alloy strand, repair the slight wire skipping and stranding of the hard alloy strand, and the hard alloy strand does not loosen after cutting, and the hard alloy strand does not twist after treatment. The upper fixed speed wheel 18 and the lower fixed speed wheel 7 are used to achieve a uniform linear speed of the backtwist inverted axis, and at the same time, the linear speed is matched with the rotation speed, lay length, and backtwist rate of the backtwist cylinder 25 to prevent over-backtwist, resulting in single breakage, and incomplete backtwist, resulting in incomplete elimination of internal stress.

[0018] As a further improvement of the present design, the detwist wheel 22, the upper constant speed wheel 18, the lower constant speed wheel 7, the tension wheel 8 and the tension detection wheel 15 are all multi-line groove wheels, which facilitates the repeated winding of the hard alloy strand on the detwist wheel 22, the release of the stress of the hard alloy strand, the stabilization of the line speed, the tension control and the accurate detection of the tension.

[0019] As a further improvement of the present design, a wire break detection sensor 13 is provided on the frame 1 between the upper fixed speed wheel 18 and the lower fixed speed wheel 7. The wire break detection sensor 13 is used to detect a strand of wire between the upper fixed speed wheel 18 and the lower fixed speed wheel 7, so as to timely alarm when the wire is broken and prevent the occurrence of production accidents.

[0020] As a further improvement of the present design, the tension swing rod 9 is provided with a scale 12 extending along the length direction of the tension swing rod 9, so as to facilitate intuitive and accurate adjustment of the tension of the tension swing rod 9.

[0021] As a further improvement of the present design, the detwist cylinder 25 is connected to the detwist bin 21 via a cylindrical roller bearing 20 , so as to improve the stability of the rotation of the detwist cylinder 25 .

[0022] During operation, the hard alloy stranded wire successively passes around the first guide wheel 3, the second guide wheel 24, and the guide wheel 23 at the front end of the detwist cylinder 25, and then winds back and forth between the two detwist wheels 22 for at least two turns, and then passes through the guide wheel 23 at the rear end of the detwist cylinder 25 to lead out of the detwist cylinder 25. After leading out of the detwist cylinder 25, the hard alloy stranded wire successively passes around the upper constant speed wheel 18 and the lower constant speed wheel 7, and repeatedly winds around the upper constant speed wheel 18 and the lower constant speed wheel 7 for at least two turns, and then is wound around the tension wheel 8. After passing around the tension wheel 8, the hard alloy stranded wire is wound around the tension detection wheel 15, and repeatedly winds around the tension detection wheel 15 and the tension wheel 8 for at least two turns. After passing around the tension detection wheel 15, the hard alloy stranded wire successively passes around the lead-out wheel 16 and the guide roller 17, and finally is led out of the detwist machine. During detwist, the detwist motor 4 drives the detwist cylinder 25 to rotate at the set speed.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hard alloy stranded wire untwisting machine, characterized in that: The invention comprises a frame, a back-twist bin arranged at the top center of the frame, a back-twist cylinder rotatably connected to the front and rear ends of the back-twist bin, a back-twist wheel arranged in the middle of the back-twist cylinder, guide wheels arranged at the left and right ends of the back-twist cylinder, a front guide wheel frame arranged at the front side of the back-twist bin, a second guide wheel arranged at the top of the front guide wheel frame, a first guide wheel arranged at the bottom of the front guide wheel, a driven sprocket arranged at the tail end of the back-twist cylinder, a back-twist motor arranged at the bottom of the frame, a driving sprocket arranged on the main shaft of the back-twist motor, a transmission chain connecting the driving sprocket and the driven sprocket, an upper fixed-speed wheel arranged on the rear end frame of the back-twist cylinder, a lower fixed-speed wheel arranged on the frame below the upper fixed-speed wheel, and a driven sprocket arranged at the rear end of the back-twist cylinder. A tension swing rod on the frame between the upper constant-speed wheel and the lower constant-speed wheel, a tension wheel arranged at the tail end of the tension swing rod, a counterweight block sleeved on the tension swing rod and sliding along the tension swing rod, a locking bolt arranged on the counterweight block and with its head abutting against the tension swing rod, a tail wheel frame arranged behind the upper constant-speed wheel and extending backward, a tension detection wheel arranged on the tail wheel frame, a lead-out wheel arranged on the tail wheel frame behind the tension detection wheel, and a guide roller vertically arranged behind the lead-out wheel and arranged left and right, the axis of the guide roller is vertical, a pressure sensor is connected between the tension detection wheel and the tail wheel frame, the back-twist wheels are arranged front and back, and the tension swing rod is rotatably connected to the frame and extends horizontally left and right.

2. A hard alloy stranded wire untwisting machine according to claim 1, characterized in that: The detwist wheel, the upper constant speed wheel, the lower constant speed wheel, the tension wheel and the tension detection wheel are all multi-line groove wheels.

3. The hard alloy stranded wire untwisting machine according to claim 1, characterized in that: A wire break detection sensor is provided on the frame between the upper fixed speed wheel and the lower fixed speed wheel, and the wire break detection sensor is used to detect a stranded wire between the upper fixed speed wheel and the lower fixed speed wheel.

4. The hard alloy stranded wire untwisting machine according to claim 1, characterized in that: The tension swing rod is provided with a scale extending along the length direction of the tension swing rod.

5. The hard alloy stranded wire untwisting machine according to claim 1, characterized in that: The detwist cylinder and the detwist bin are connected via a cylindrical roller bearing.

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