Pay-off device and using method thereof

Abstract

According to the pay-off device, a shaft sleeve and a center shaft are rotationally connected, and a pay-off shaft is fixed to the shaft sleeve; the limiting disc is fixed to the shaft sleeve, two symmetrical limiting notches are formed in the limiting disc, a pin barrel is arranged below one limiting notch, a limiting pin is arranged in the pin barrel, and a spring is arranged between the limiting pin and the inner bottom face of the pin barrel. A deflection long hole is formed in the side face of the pin cylinder. The trigger rod penetrates through the deflection long hole and then is fixed to the limiting pin. The first heavy hammer rod penetrates through the first rod sleeve and then is arranged above the trigger rod, and second heavy hammer rods are further symmetrically arranged. The hanging shaft is rotationally connected to the supporting base, the picking shaft and the hanging rods are arranged on the two sides of the hanging shaft respectively, the picking shaft is fixed to the middle of the hanging shaft, the two hanging rods are fixed to the ends of the hanging shaft respectively, fixing rods are arranged below the hanging rods, and a pressing shaft is arranged beside the picking shaft; the heavy hammer rod is hung on the hanging rod or the fixed rod through a chain; the pay-off device is exquisite in structure and is a pure mechanical mechanism, automatic transposition of a full-disc spool and an empty-disc spool can be achieved, the pay-off process is uninterrupted, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of wire processing, and relates to a purely mechanical wire feeding device capable of automatically changing positions and a using method thereof. Background Art

[0002] Existing wires, such as steel wires and copper wires, are usually fed from a spool, so as to facilitate subsequent processing operations such as electroplating and cleaning after wire feeding.

[0003] When the wire on a spool is used up, the wire feeding process will be interrupted when manually replacing the spool with a full spool, resulting in a decrease in production efficiency and affecting the normal progress of subsequent processes. Summary of the Invention

[0004] In order to make the wire feeding process of the wire uninterrupted, the present invention provides a wire feeding device, which includes a position changing mechanism, a triggering mechanism and a wire guiding mechanism, and the wire guiding mechanism is arranged beside the position changing mechanism;

[0005] The position changing mechanism includes a central shaft, a sleeve, a wire feeding shaft, a limiting disc, a pin cylinder, a limiting pin and a spring;

[0006] The central shaft and the sleeve are vertically arranged, the sleeve is sleeved on the central shaft and rotatably connected to the central shaft, so that the sleeve can rotate along its own axis without limitation. Specifically, the central shaft is fixedly connected to the equipment platform, and a bearing can be installed between the sleeve and the central shaft to make the rotation of the sleeve smooth; the wire feeding shaft is horizontally arranged, and the middle part of the wire feeding shaft is fixedly connected to the top end of the sleeve through a fixing block, so that the wire feeding shaft can rotate with the sleeve; the wire feeding shaft is used to place the spool. Pin holes are respectively formed on the side surfaces at both ends of the wire feeding shaft. After the spool is placed on the wire feeding shaft, a plug pin is inserted into the pin hole to limit the spool on the wire feeding shaft. There are two spools placed on the wire feeding shaft, and the two spools are symmetrically arranged on both sides of the central shaft. Wires are wound on the spools and are fed under the pulling of a traction device;

[0007] The limiting disc is fixedly connected to the sleeve and can rotate with the sleeve. Taking the axis of the sleeve as the center of symmetry, two symmetrically arranged limiting notches are formed on the limiting disc. A pin cylinder is vertically arranged below one of the limiting notches. Specifically, the pin cylinder can be fixedly connected to the central shaft through a support plate or fixedly connected to the equipment platform. A limiting pin is arranged in the pin cylinder. A spring is arranged between the lower end of the limiting pin and the inner bottom surface of the pin cylinder. Under the action of the elastic force of the spring, the upper end of the limiting pin can be located in the limiting notch of the limiting disc, so as to limit the rotation of the sleeve; when the limiting pin is briefly pressed down and moved out of the limiting notch under an external force, the sleeve can rotate 180°, so that the two spools on the wire feeding shaft can change positions. After the position change, the upper end of the limiting pin can be stuck into another limiting notch under the action of the spring, so that the sleeve is limited again;

[0008] The triggering mechanism includes a trigger rod, a first hammer rod, a first rod sleeve, a second hammer rod, a second rod sleeve, a limit block, a support seat, a hanging shaft, a picking shaft, a hanging rod, a fixing rod, a pressing shaft, a pressing wire and a chain;

[0009] A deflection long hole is formed in the side surface of the pin cylinder, and the trigger rod passes through the deflection long hole and is fixedly connected to the side surface of the limit pin. The lower half of the deflection long hole is an inclined long hole, and the trigger rod can move along the deflection long hole under the action of an external force so as to drive the limit pin to move;

[0010] The first hammer rod is arranged above the trigger rod after passing through the first rod sleeve. Taking the axis of the bushing as the symmetry center, a second hammer rod and a second rod sleeve are also symmetrically arranged. Of course, the second hammer rod also passes through the second rod sleeve. The first rod sleeve and the second rod sleeve are respectively fixedly connected to the bushing through a support plate and can rotate together with the bushing. The upper ends of the first hammer rod and the second hammer rod are respectively fixedly connected with a limit block. In this way, after the hammer rod is released, the limit block can limit them on the corresponding rod sleeve and thus rotate together with the bushing. The limit block can also increase the weight of the hammer rod to play a role in counterweight;

[0011] The support seat is fixedly connected to the top surface of the fixed block. The hanging shaft is rotatably connected to the support seat through a bearing. The picking shaft and the hanging rod are respectively arranged on both sides of the hanging shaft and are respectively perpendicular to the hanging shaft. The picking shaft is fixedly connected to the middle of the hanging shaft. There are two hanging rods respectively fixed to the ends of the hanging shaft. The two hanging rods are respectively arranged above the first hammer rod and the second hammer rod. A fixing rod is also arranged below each hanging rod. The fixing rod is fixedly connected to the support seat;

[0012] A pressing shaft is arranged beside the picking shaft. The pressing shaft is fixedly connected to the support seat. A tensioned pressing wire is located below the pressing shaft and presses the picking shaft below;

[0013] The upper ends of the first hammer rod and the second hammer rod can be respectively hung on the corresponding hanging rod or fixing rod through a chain, so as to hang the first hammer rod and the second hammer rod; when the first hammer rod is hung on the hanging rod through its chain, the pressing wire is removed, the picking shaft loses its limit, and under the action of gravity, the hanging shaft will drive the hanging rod to rotate, and the chain of the first hammer rod will slide off the hanging rod. When the first hammer rod falls and is released, its end will push the trigger rod to realize the position-changing trigger of the two idler wheels; of course, handles are also respectively fixedly connected to the first hammer rod and the second hammer rod, which is convenient for personnel to lift the hammer rod and rehang and reset the hammer rod.

[0014] Preferably, the trigger mechanism also includes a baffle, which is arranged on a side away from the deflection direction of the deflection long hole and fixedly connected to the side of the trigger rod. When the above-mentioned first weight rod falls and is released, the deflection long hole can give the sleeve an initial rotational force of deflection, and the setting of the baffle can interfere with the side of the weight rod, so as to better transmit the deflection force brought by the deflection long hole to the sleeve.

[0015] Furthermore, the wire guide mechanism includes a shaft seat, a column, a rotating shaft, a connecting plate, a rocker arm, a wire passing wheel and a wire threading sleeve;

[0016] The shaft seat is fixedly connected to the top surface of the column, a rotating shaft is rotatably connected in the shaft seat through a bearing, one end of the rotating shaft is fixedly connected to one end of the rocker arm through a connecting plate, and the wire wheel is arranged beside the other end of the rotating shaft, and the wire wheel is fixedly connected to the column through a supporting plate;

[0017] A threading hole is provided in the axial direction of the rotating shaft, and a through hole is also formed on the connecting plate at a position corresponding to the threading hole of the rotating shaft. A plurality of threading sleeves are arranged and fixedly connected on the rocker arm; in this way, the wire on the I-shaped wheel can first pass through the threading sleeve of the rocker arm, and then pass through the through hole of the connecting plate and the threading hole of the rotating shaft, and finally bypass the wire wheel for release. When releasing the wire, the rocker arm will rotate around the I-shaped wheel along the release direction of the wire, so that the release is smooth and will not get stuck. Of course, a counterweight is also fixedly connected to the connecting plate to ensure stable rotation of the rocker arm.

[0018] Furthermore, the wire guiding mechanism also includes a tensioning wheel, a tension adjusting belt, an adjusting screw and a fixing plate; the tensioning wheel is fixedly connected to the rotating shaft, and after the tension adjusting belt passes around the tensioning wheel, the two ends of the tension adjusting belt are connected to the fixing plate through the adjusting screw, and the fixing plate is fixedly connected to the top surface of the shaft seat; in this way, the friction resistance of the tension adjusting belt to the tensioning wheel can be adjusted by the adjusting screw to limit the rotation speed of the tensioning wheel and the rotating shaft, thereby limiting the rotation speed of the rocker arm. Under the constant traction force of the traction machine, the slower rotation speed of the rocker arm can enable the wire to maintain a good pay-off tension.

[0019] Furthermore, the wire mechanism also includes a plurality of wire blocks, and the plurality of wire blocks are hinged to each other in sequence. The first wire block is fixedly connected to the end of the rocker arm, and a ceramic wire sleeve is fixedly connected to each wire block. The wire released on the I-shaped wheel passes through each ceramic wire sleeve and is guided to the rocker arm. In the past, the wire was generally guided by rotating the wire wheel at the end of the rocker arm. The wire wheel can prevent the wire from bending during threading, but during the rotation of the rocker arm, the wire is easily thrown off the wire wheel. Therefore, the technical solution of the present application is improved here, and the shape of the wire blocks and ceramic wire sleeves hinged to each other can be changed according to the direction and tension of the wire, which can better prevent the wire from bending here, and the wire will not be thrown off it.

[0020] Further, the wire mechanism further includes a wire storage ring and a support bar. The wire storage ring is located above the support base. The top of the wire storage ring is rotatably connected to the bottom surface of the end of the support bar. The other end of the support bar is fixedly connected to the column. Part of the wire is wound around the wire storage ring. When the full spool and the empty spool are being exchanged, the wire can still be paid out from the wire storage ring, so that the wire pay-out does not interrupt during the exchange of the two spools. The rotatable connection of the wire storage ring enables the wire storage ring to swing along with the direction of the wire, thus making the wire pay-out smooth without jamming.

[0021] A method for using the wire pay-out device as described above includes the following steps:

[0022] S1. Place two full spools on the wire pay-out shaft. The two spools are symmetrically arranged on both sides of the central axis. Among them, the one closer to the wire mechanism is the first spool, and the other is the second spool.

[0023] S2. The pay-out end of the wire on the second spool is pre-wound around the wire storage ring for several turns, then passes under the pressing shaft and above the picking shaft, and is fixedly connected to the end of the wire of the first spool. These two ends can be fixedly connected by tying and winding. The wire between the pressing shaft and the picking shaft forms a tensioned wire after being tightened, thereby limiting the picking shaft.

[0024] S3. Hang the first weight rod on the upper hanging rod through its chain, and hang the second weight rod on the upper fixed rod through its chain.

[0025] S4. After the preparation processes of S1 to S3 are completed, pay out the wire from the pay-out end of the wire of the first spool through the wire mechanism under the traction of the tractor.

[0026] S5. After all the wire on the first spool is emptied, continue to pay out the wire from the wire storage ring. The tensioned wire will also be pulled and slip off the picking shaft, causing the picking shaft to lose its limit. Under the gravity of the first weight rod, the hanging shaft will drive the hanging rod to rotate, and the chain of the first weight rod will slip off the hanging rod, realizing the automatic release of the first weight rod. The end of the first weight rod will push the trigger rod. When the trigger rod moves along the deflecting long hole of the pin cylinder, the upper end of the limit pin moves out of the limit notch of the limit disk. Under the initial force of rotation given by the deflecting long hole and the inertial action of the gravity difference between the full second spool and the empty first spool, the bushing will automatically start to rotate, thereby driving the rotation of the first spool and the second spool on the wire pay-out shaft. After rotating 180°, the limit pin pops out under the action of the spring in the pin cylinder and snaps into another symmetrically arranged limit notch of the limit disk, stopping the rotation of the bushing, thus realizing the automatic exchange of the full second spool and the empty first spool. After the wire on the wire storage ring is paid out, it will start to be paid out from the second spool.

[0027] S6. When paying off the wire from the second spool, remove the empty first spool and replace it with the full third spool. The pay-off end of the wire on the third spool is pre-wound around the wire storage ring for several turns, then passes under the pressing shaft and above the picking shaft, and is fixedly connected to the end of the wire of the second spool. The wire between the pressing shaft and the picking shaft forms a tensioned wire after being tightened, thereby limiting the picking shaft. Remove the second weight rod hanging on the fixed rod and hang it on the hanging rod above it to complete the reset of the triggering mechanism. In this way, after the wire on the second spool is emptied, the automatic replacement of the full spool and the empty spool can be realized again. Of course, in order to avoid interfering with the triggering rod during the next replacement of the two spools, the first weight rod released for the first time also needs to be hung on the fixed rod above it.

[0028] Through the above technical solutions, the present invention has at least the following beneficial effects:

[0029] The pay-off device described in the technical solution of the present application has a delicate structure. Through the design of the replacement mechanism and the triggering mechanism, after the wire on one spool is emptied, it can be automatically triggered to make the full spool and the empty spool automatically replace each other, so that the pay-off process is uninterrupted and the production efficiency is improved. And the design of the wire storage ring of the wire guiding mechanism enables the pay-off not to be interrupted when the two spools are replaced.

[0030] Importantly, the present pay-off device is a pure mechanical mechanism, and the automatic triggering of the weight rod and the automatic replacement of the spools do not require the use of electricity, which can save energy consumption and reduce the manufacturing cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0032] Figure 1 Schematic diagram of the overall structure of the pay-off device described in the specific embodiment of the present application;

[0033] Figure 2 For Figure 1 Enlarged view of part A in

[0034] Figure 3 For Figure 1 Enlarged view of part B in

[0035] Figure 4 For Figure 1 Enlarged view of part C in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship are only for illustrative purposes and should not be construed as a limitation of this patent. If there are terms such as "first", "second", etc., they are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of the said features. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Reference Figures 1 to 4 to a wire pay - out device, which includes a commutation mechanism, a triggering mechanism, and a wire guiding mechanism. The wire guiding mechanism is arranged beside the commutation mechanism;

[0039] Reference Figure 1 and Figure 3 The commutation mechanism includes a central shaft 1, a bushing 2, a wire pay - out shaft 3, a limit disk 4, a pin cylinder 5, a limit pin 6, and a spring;

[0040] The central shaft 1 and the bushing 2 are vertically arranged. The bushing 2 is sleeved on the central shaft 1 and is rotationally connected to the central shaft 1, so that the bushing 2 can rotate along its own axis without limitation. Specifically, the central shaft 1 is fixedly connected to the equipment platform, and a bearing can be installed between the bushing 2 and the central shaft 1 to make the rotation of the bushing 2 smooth. The wire pay - out shaft 3 is horizontally arranged. The middle part of the wire pay - out shaft 3 is fixedly connected to the top end of the bushing 2 through a fixing block 7, so that the wire pay - out shaft 3 can rotate with the bushing 2. This wire pay - out shaft 3 is used to place the spool. Pin holes are respectively opened on both side surfaces of the two ends of the wire pay - out shaft 3. After the spool is placed on the wire pay - out shaft 3, a plug pin is inserted into the pin hole to limit the spool on the wire pay - out shaft 3. There are two spools placed on the wire pay - out shaft 3, and the two spools are symmetrically arranged on both sides of the central shaft 1. The wire is wound on the spool and is payed out under the pulling of the traction equipment;

[0041] The limiting disk 4 is fixedly connected to the bushing 2 and can rotate with the bushing 2. With the axis of the bushing 2 as the center of symmetry, two symmetrically arranged limiting notches 401 are formed on the limiting disk 4. Vertically below one limiting notch 401, there is a pin cylinder 5. The pin cylinder 5 can be specifically fixedly connected to the central shaft 1 through a support plate or fixedly connected to the equipment platform. A limiting pin 6 is arranged inside the pin cylinder 5. A spring is arranged between the lower end of the limiting pin 6 and the inner bottom surface of the pin cylinder 5. Under the action of the elastic force of the spring, the upper end of the limiting pin 6 can be located in the limiting notch 401 of the limiting disk 4, thereby restricting the rotation of the bushing 2. After the limiting pin 6 is briefly pressed down and moved out of the limiting notch 401 under an external force, the bushing 2 can rotate 180°, so that the two spools on the wire pay-off shaft 3 can be transposed. After the transposition, the upper end of the limiting pin 6 can be caught in another limiting notch 401 under the action of the spring, so that the bushing 2 is limited again;

[0042] Reference Figure 1 and Figure 2 The triggering mechanism includes a trigger rod 10, a first weight rod 11, a first rod sleeve 101, a second weight rod 12, a second rod sleeve 102, a limiting block 13, a support seat 14, a hanging shaft 15, a picking shaft 16, a hanging rod 17, a fixing rod 18, a pressing shaft 19, a pressing wire and a chain;

[0043] A deflecting long hole 501 is formed on the side surface of the pin cylinder 5. The trigger rod 10 passes through the deflecting long hole 501 and is fixedly connected to the side surface of the limiting pin 6. The lower half of the deflecting long hole 501 is an inclined long hole. The trigger rod 10 can move along the deflecting long hole 501 under an external force so as to drive the limiting pin 6 to move;

[0044] The first weight rod 11 passes through the first rod sleeve 101 and is arranged above the trigger rod 10. With the axis of the bushing 2 as the center of symmetry, a second weight rod 12 and a second rod sleeve 102 are also symmetrically arranged. Of course, the second weight rod 12 also passes through the second rod sleeve 102. The first rod sleeve 101 and the second rod sleeve 102 are respectively fixedly connected to the bushing 2 through support plates and can rotate with the bushing 2. Limiting blocks 13 are respectively fixedly connected to the upper ends of the first weight rod 11 and the second weight rod 12. In this way, after the weight rods are released, the limiting blocks 13 can limit them on the corresponding rod sleeves and thus rotate with the bushing 2. The limiting blocks 13 can also increase the weight of the weight rods to play a role in counterweight;

[0045] The support seat 14 is fixedly connected to the top surface of the fixed block 7, the hanging shaft 15 is rotatably connected to the support seat 14 through a bearing, the lifting shaft 16 and the hanging rod 17 are respectively arranged on both sides of the hanging shaft 15 and are respectively arranged perpendicular to the hanging shaft 15, the lifting shaft 16 is fixedly connected to the middle of the hanging shaft 15, there are two hanging rods 17 respectively fixed to the ends of the hanging shaft 15, the two hanging rods 17 are respectively arranged above the first weight rod 11 and the second weight rod 12, and a fixing rod 18 is also arranged under each hanging rod 17, and the fixing rod 18 is fixedly connected to the support seat 14;

[0046] A pressing shaft 19 is arranged beside the lifting shaft 16, and the pressing shaft 19 is fixedly connected to the supporting seat 14, and a tensioned pressing wire is located below the pressing shaft 19 and presses the lifting shaft 16 downward;

[0047] The upper end of the first weight rod 11 and the upper end of the second weight rod 12 can be hung on the corresponding hanging rod 17 or fixed rod 18 through chains, so that the first weight rod 11 and the second weight rod 12 are suspended; when the first weight rod 11 is hung on the hanging rod 17 through its chain, the pressing wire is pulled out, and the lifting shaft 16 loses its limit. Under the action of gravity, the hanging shaft 15 will drive the hanging rod 17 to rotate, and the chain of the first weight rod 11 will slide off the hanging rod 17. When the first weight rod 11 falls and is released, its end will push the trigger rod 10 to realize the transposition triggering of the two I-shaped wheels; of course, the first weight rod 11 and the second weight rod 12 are also fixedly connected with handles, which are convenient for personnel to lift the weight rod and re-hang the weight rod to reset it.

[0048] refer to Figure 3 The trigger mechanism also includes a baffle 20, which is arranged on a side away from the deflection direction of the deflection long hole 501 and fixedly connected to the side of the trigger rod 10. When the above-mentioned first hammer rod 11 falls and is released, the deflection long hole 501 can give the sleeve 2 a deflection rotation initial force, and the setting of the baffle 20 can contact the side of the weight rod, so as to better transmit the deflection force brought by the deflection long hole 501 to the sleeve 2.

[0049] refer to Figure 1 The wire guide mechanism includes a shaft seat 21, a column 22, a rotating shaft 23, a connecting plate 24, a rocker arm 25, a wire passing wheel 26 and a wire threading sleeve 2501;

[0050] The shaft seat 21 is fixedly connected to the top surface of the column 22, and a rotating shaft 23 is rotatably connected in the shaft seat 21 through a bearing. One end of the rotating shaft 23 is fixedly connected to one end of a rocker arm 25 through a connecting plate 24. The wire passing wheel 26 is arranged beside the other end of the rotating shaft 23, and the wire passing wheel 26 is fixedly connected to the column 22 through a supporting plate.

[0051] A wire threading through hole is axially formed in the rotating shaft 23, and a through hole is also formed in the connecting plate 24 at a position corresponding to the wire threading through hole of the rotating shaft 23. A plurality of wire threading sleeves 2501 are fixedly connected to the swing arm 25 in an arranged manner; in this way, the wire on the spool can first pass through the wire threading sleeves 2501 of the swing arm 25, then pass through the through hole of the connecting plate 24 and the wire threading through hole of the rotating shaft 23, and finally bypass the wire guiding wheel 26 for wire pay-off. During wire pay-off, the swing arm 25 will rotate around the spool along with the wire pay-off direction of the wire, so that the wire pay-off is smooth and will not get stuck. Of course, a counterweight is also fixedly connected to the connecting plate 24, making the rotation of the swing arm 25 stable.

[0052] Reference Figure 1 , the wire guiding mechanism further includes a tension pulley 27, a tension adjusting belt 28, an adjusting screw and a fixing plate 29; the tension pulley 27 is fixedly connected to the rotating shaft 23, the tension adjusting belt 28 bypasses the tension pulley 27, and both ends of the tension adjusting belt 28 are connected to the fixing plate 29 through the adjusting screw, and the fixing plate 29 is fixedly connected to the top surface of the shaft seat 21; in this way, the frictional resistance of the tension adjusting belt 28 on the tension pulley 27 can be adjusted through the adjusting screw to limit the rotation speed of the tension pulley 27 and the rotating shaft 23, thereby limiting the rotation speed of the swing arm 25. Under the constant traction force of the tractor, a slower rotation speed of the swing arm 25 can keep the wire in good wire pay-off tension.

[0053] Reference Figure 4 , the wire guiding mechanism further includes a plurality of wire guiding blocks 32, and the plurality of wire guiding blocks 32 are sequentially hinged to each other. The first wire guiding block 32 is fixedly connected to the end of the swing arm 25, and a ceramic wire guiding sleeve 3201 is fixedly connected to each wire guiding block 32. After the wire payed off from the spool passes through each ceramic wire guiding sleeve 3201, it is guided to the swing arm 25; in the past, generally a wire guiding wheel was rotatably connected to the end of the swing arm 25 to guide the wire. The wire guiding wheel can prevent the wire from being bent, but during the rotation of the swing arm 25, the wire is easily thrown off from the wire guiding wheel. Therefore, the technical solution of this application makes an improvement here. By using such a plurality of mutually hinged wire guiding blocks 32 and ceramic wire guiding sleeves 3201, the shape can be changed according to the wire direction and tension, which can better prevent the wire from being bent here, and the wire will not be thrown off from it.

[0054] Reference Figure 1 , the wire guiding mechanism further includes a wire storage ring 30 and a support bar 31. The wire storage ring 30 is located above the support seat 14. The top of the wire storage ring 30 is rotatably connected to the bottom surface of the end of the support bar 31, and the other end of the support bar 31 is fixedly connected to the column 22; a part of the wire is wound on the wire storage ring 30. When the full spool and the empty spool are replaced, the wire can still be payed off from the wire storage ring 30, so that the wire pay-off can be uninterrupted during the replacement of the two spools. The rotatable connection of the wire storage ring 30 enables the wire storage ring 30 to swing along with the wire direction, so that the wire pay-off is smooth and will not get stuck.

[0055] The usage method of the above wire feeding device is as follows, including the following processes:

[0056] S1. Place two full spools of spools on the wire feeding shaft 3. The two spools are symmetrically arranged on both sides of the central shaft 1. Among them, the one close to the wire guiding mechanism is the first spool, and the other is the second spool;

[0057] S2. The wire feeding end of the wire on the second spool is pre-wound around the wire storage ring 30 for several turns, then passes under the pressing shaft 19 and above the picking shaft 16, and is fixedly connected to the end of the wire of the first spool. These two ends can be fixedly connected by tying and winding. The wire between the pressing shaft 19 and the picking shaft 16 forms a tensioned wire after being tightened, thereby limiting the picking shaft 16;

[0058] S3. Hang the first weight rod 11 on the upper hanging rod 17 through its chain, and hang the second weight rod 12 on the upper fixed rod 18 through its chain;

[0059] S4. After the preparation processes of S1 to S3 are completed, the wire feeding end of the wire of the first spool is fed through the wire guiding mechanism and under the traction of the tractor;

[0060] S5. After all the wire on the first spool is emptied, continue to feed the wire from the wire storage ring 30. The wire will also be pulled and slip off the picking shaft 16, causing the picking shaft 16 to lose its limit. Under the gravity of the first weight rod 11, the hanging shaft 15 will drive the hanging rod 17 to rotate, and the chain of the first weight rod 11 will slip off the hanging rod 17, realizing the automatic falling and release trigger of the first weight rod 11. The end of the first weight rod 11 will push the trigger rod 10. When the trigger rod 10 moves along the deflecting long hole 501 of the pin cylinder 5, the upper end of the limit pin 6 moves out of the limit notch 401 of the limit disk 4. Under the initial force of rotation given by the deflecting long hole 501 and the inertial action of the gravity difference between the full spool second spool and the empty spool first spool, the bushing 2 will automatically start to rotate, thereby driving the rotation of the first spool and the second spool on the wire feeding shaft 3; after rotating 180°, the limit pin 6 pops out under the action of the spring in the pin cylinder 5 and snaps into another symmetrically arranged limit notch 401 of the limit disk 4, stopping the rotation of the bushing 2, thereby realizing the automatic transposition of the full spool second spool and the empty spool first spool. After the wire on the wire storage ring 30 is fed out, it will be fed from the second spool;

[0061] S6. When paying off the wire from the second spool, remove the empty first spool and replace it with the full third spool. The pay-off end of the wire on the third spool is pre-wound around the wire storage ring 30 for several turns, then passes under the pressing shaft 19 and above the picking shaft 16, and is fixedly connected to the end of the wire on the second spool. The wire between the pressing shaft 19 and the picking shaft 16 forms a tensioned wire after being tightened, thereby limiting the picking shaft 16. Remove the second weight rod 12 hanging on the fixed rod 18 and hang it on the hanging rod 17 above it to complete the reset of the trigger mechanism. In this way, after the wire on the second spool is emptied, the automatic replacement of the full spool and the empty spool can be realized again. Of course, in order to avoid interfering with the trigger rod 10 during the next replacement of the two spools, the first weight rod 11 released for the first time also needs to be hung on the fixed rod 18 above it.

[0062] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Based on the inspiration of the present invention, through the above description, relevant personnel can make various changes and modifications without departing from the technical idea of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pay-off device, characterized in that: It includes a commutation mechanism, a triggering mechanism, and a wire mechanism. The wire mechanism is arranged beside the commutation mechanism; The commutation mechanism includes a central shaft (1), a bushing (2), a wire pay-off shaft (3), a limit disc (4), a pin cylinder (5), a limit pin (6), and a spring; The central shaft (1) and the bushing (2) are arranged vertically. The bushing (2) is sleeved on the central shaft (1) and is rotatably connected to the central shaft (1). The wire pay-off shaft (3) is arranged horizontally. The middle part of the wire pay-off shaft (3) is fixedly connected to the top end of the bushing (2) through a fixing block (7); The limit disc (4) is fixedly connected to the bushing (2). With the axis of the bushing (2) as the symmetry center, two symmetrically arranged limit notches (401) are provided on the limit disc (4). A pin cylinder (5) is vertically arranged below one limit notch (401). A limit pin (6) is arranged in the pin cylinder (5). A spring is arranged between the lower end of the limit pin (6) and the inner bottom surface of the pin cylinder (5). Under the action of the elastic force of the spring, the upper end of the limit pin (6) can be located in the limit notch (401) of the limit disc (4); The triggering mechanism includes a trigger rod (10), a first weight rod (11), a first rod sleeve (101), a second weight rod (12), a second rod sleeve (102), a limit block (13), a support seat (14), a hanging shaft (15), a picking shaft (16), a hanging rod (17), a fixing rod (18), a pressing shaft (19), a pressing wire, and a chain; A deflecting long hole (501) is provided on the side surface of the pin cylinder (5). The trigger rod (10) passes through the deflecting long hole (501) and is fixedly connected to the side surface of the limit pin (6); The first weight rod (11) passes through the first rod sleeve (101) and is arranged above the trigger rod (10). With the axis of the bushing (2) as the symmetry center, a second weight rod (12) and a second rod sleeve (102) are also symmetrically arranged. The first rod sleeve (101) and the second rod sleeve (102) are respectively fixedly connected to the bushing (2). Limit blocks (13) are respectively fixedly connected to the upper ends of the first weight rod (11) and the second weight rod (12); The support seat (14) is fixedly connected to the top surface of the fixing block (7). The hanging shaft (15) is rotatably connected to the support seat (14). The picking shaft (16) and the hanging rod (17) are respectively arranged on both sides of the hanging shaft (15) and are respectively perpendicular to the hanging shaft (15). The picking shaft (16) is fixedly connected to the middle part of the hanging shaft (15). There are two hanging rods (17) respectively fixed to the ends of the hanging shaft (15). The two hanging rods (17) are respectively arranged above the first weight rod (11) and the second weight rod (12). A fixing rod (18) is also arranged below each hanging rod (17). The fixing rod (18) is fixedly connected to the support seat (14); A pressing shaft (19) is arranged beside the picking shaft (16). The pressing shaft (19) is fixedly connected to the support seat (14). A tensioned pressing wire is located below the pressing shaft (19) and presses the picking shaft (16) below; The upper ends of the first hammer rod (11) and the second hammer rod (12) can be respectively hung on the corresponding hanging rod (17) or fixed rod (18) through chains.

2. A pay-off device according to claim 1, characterized in that: The triggering mechanism further includes a baffle (20), and the baffle (20) is arranged on one side away from the deflection direction of the deflection long hole (501) and is fixedly connected to the side surface of the trigger rod (10).

3. An unwinding device according to claim 1 or 2, characterized in that: The wire guiding mechanism includes a shaft seat (21), a column (22), a rotating shaft (23), a connecting plate (24), a rocker arm (25), a wire passing wheel (26) and a wire passing sleeve (2501); The shaft seat (21) is fixedly connected to the column (22), and a rotating shaft (23) is rotatably connected inside the shaft seat (21). One end of the rotating shaft (23) is fixedly connected to one end of the rocker arm (25) through the connecting plate (24). The wire passing wheel (26) is arranged beside the other end of the rotating shaft (23), and the wire passing wheel (26) is fixedly connected to the column (22); A wire passing through hole is axially formed in the rotating shaft (23), and a through hole is also formed in the connecting plate (24) at the corresponding position of the wire passing through hole of the rotating shaft (23). A plurality of wire passing sleeves (2501) are fixedly connected in an array on the rocker arm (25).

4. A pay-off device according to claim 3, characterized in that: The wire guiding mechanism further includes a tension pulley (27), a tension adjusting belt (28), an adjusting screw and a fixing plate (29); the tension pulley (27) is fixedly connected to the rotating shaft (23). After the tension adjusting belt (28) bypasses the tension pulley (27), both ends of the tension adjusting belt (28) are connected to the fixing plate (29) through the adjusting screw, and the fixing plate (29) is fixedly connected to the shaft seat (21).

5. A pay-off device according to claim 3, characterized in that: The wire guiding mechanism further includes a plurality of wire guiding blocks (32), and the plurality of wire guiding blocks (32) are sequentially hinged to each other. The first wire guiding block (32) is fixedly connected to the end of the rocker arm (25), and a ceramic wire guiding sleeve (3201) is fixedly connected to each wire guiding block (32).

6. A pay-off device according to claim 5, characterized in that: The wire guiding mechanism further includes a wire storage ring (30) and a support bar (31). The wire storage ring (30) is located above the support seat (14), and the top of the wire storage ring (30) is rotatably connected to the support bar (31), and the support bar (31) is fixedly connected to the column (22).

7. A method for using the pay-off device according to claim 6, characterized in that: It includes the following processes: S1. Place two full spools of spools on the wire paying-off shaft (3). The two spools are symmetrically arranged on both sides of the central shaft (1). Among them, the one close to the wire guiding mechanism is the first spool, and the other is the second spool; S2. The paying-off end of the wire on the second spool is pre-wound around the wire storage ring (30) for several turns, then passes under the pressing shaft (19) and above the picking shaft (16), and is fixedly connected to the end of the wire of the first spool. The wire between the pressing shaft (19) and the picking shaft (16) forms a tensioned wire after being tightened, so as to limit the picking shaft (16); S3. Hang the first hammer rod (11) on the upper hanging rod (17) through its chain, and hang the second hammer rod (12) on the upper fixed rod (18) through its chain; S4. After the preparation processes of S1 to S3 are completed, pay off the paying-off end of the wire of the first spool through the wire guiding mechanism under the traction of the tractor; S5. After all the wire on the first spool is emptied, continue to pay off the wire from the wire storage ring (30). The wire pressing piece will also be pulled and slip off the picking shaft (16), causing the picking shaft (16) to lose its limit. Under the gravity of the first weight rod (11), the hanging shaft (15) will drive the hanging rod (17) to rotate, and the chain of the first weight rod (11) will slip off the hanging rod (17), realizing the automatic release of the first weight rod (11). The end of the first weight rod (11) will then push the trigger rod (10). When the trigger rod (10) moves along the deflecting long hole (501) of the pin cylinder (5), the upper end of the limit pin (6) moves out of the limit notch (401) of the limit disc (4). Under the initial force of rotation given by the deflecting long hole (501) and the inertial action of the gravity difference between the full second spool and the empty first spool, the bushing (2) will automatically start to rotate, thereby driving the rotation of the first spool and the second spool on the pay-off shaft (3). After rotating 180°, the limit pin (6) pops out under the action of the spring in the pin cylinder (5) and snaps into another symmetrically arranged limit notch (401) of the limit disc (4), stopping the rotation of the bushing (2), thus realizing the automatic transposition of the full second spool and the empty first spool. After the wire on the wire storage ring (30) is paid off, it will be paid off from the second spool. S6. When paying off the wire from the second spool, remove the empty first spool and replace it with a full third spool. The pay-off end of the wire on the third spool is pre-wound around the wire storage ring (30) for several turns, then passes under the pressing shaft (19) and above the picking shaft (16), and is fixedly connected to the end of the wire of the second spool. The wire between the pressing shaft (19) and the picking shaft (16) forms a tensioned wire pressing piece after being tightened, thereby limiting the picking shaft (16). Remove the second weight rod (12) hanging on the fixed rod (18) and hang it on the hanging rod (17) above it to complete the reset of the trigger mechanism.

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