Large-taper mechanism facilitating wire replacement

Abstract

The invention relates to the technical field of linear cutting, in particular to a large-taper mechanism convenient for wire replacement, which comprises a workbench, the workbench is provided with a discharging shell, a first working unit, a support plate and a second working unit, the support plate is rotatably provided with a plurality of first guide wheels, and the workbench is fixedly connected with a first fixing rod; the first working unit is provided with a first fixing rod, the second working unit is provided with a second fixing rod, the first working unit is provided with a wire storage cylinder, and the first fixing rod and the second fixing rod are each provided with a rotating wheel set and a second guide wheel. A metal wire distributed in a bent mode is jointly installed on a wire storage barrel on the first working unit, all the first guide wheels, all the rotating wheel sets and all the second guide wheels, and an adjusting mechanism is arranged on the supporting plate. According to the device, the first working unit, the first fixing rod and the second fixing rod are distributed, so that the metal wire is bent and distributed, the lathe bed of the device is shortened, and the molybdenum wire is conveniently and quickly mounted.

Description

Technical Field

[0001] The invention relates to the technical field of wire cutting, and in particular to a large-taper mechanism that is convenient for wire changing. Background Art

[0002] Wire cutting is a technology that processes metal materials based on the principle of electric spark discharge. It uses a high-speed moving metal wire (usually brass wire, molybdenum wire, etc.) as an electrode to generate pulse discharge between the wire and the workpiece, thereby achieving cutting of the workpiece.

[0003] However, during the installation of the metal wire on the large-taper mechanism in the existing wire cutting machine, since the wire storage barrel in the large-taper mechanism is located behind the column, the metal wire is installed straight on the large-taper mechanism. This arrangement design makes the bed of the wire cutting machine longer, resulting in high manufacturing cost of the device. At the same time, the long bed of the cutting machine causes a long wire-threading distance, making it difficult for one person to thread the wire on the wire cutting machine. Summary of the invention

[0004] In order to overcome the above-mentioned problems, the present invention provides a large-taper mechanism for facilitating wire changing.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a large-taper mechanism that is convenient for wire changing, comprises a workbench, the workbench is equipped with a discharge shell, a first working unit, a support plate and a second working unit, the support plate is rotatably provided with a plurality of first guide wheels, the workbench is fixedly connected to a first fixed rod, the second working unit is equipped with a second fixed rod, the first working unit is provided with a wire storage drum, the center line of the wire storage drum on the first working unit is parallel to the center line of the first fixed rod, the first fixed rod and the second fixed rod are both equipped with a rotating wheel group and a second guide wheel, the wire storage drum on the first working unit, all the first guide wheels, all the rotating wheel groups and all the second guide wheels are jointly equipped with a bent metal wire, the support plate is slidably provided with a sliding block, the sliding block is rotatably provided with a rotating wheel, the support plate is slidably provided with a sliding rod, the sliding block is fixedly connected to a first fixed shell slidably connected to the sliding rod, a spring is installed between the sliding rod and the first fixed shell, and an adjustment mechanism for adjusting the position of the sliding rod is provided on the support plate.

[0006] Preferably, the adjusting mechanism includes a second fixed shell, the second fixed shell is fixedly connected to the support plate, and the sliding rod and the second fixed shell are slidably connected, the sliding rod and the second fixed shell cooperate to form a cylindrical cavity, the first fixed rod and the second fixed rod are both rotatably provided with a rotating block, the rotating block on the first fixed rod is fixedly connected to a guide rod, the guide rod penetrates the rotating block on the second fixed rod and is slidably connected thereto, the end of the guide rod away from the first fixed rod is fixedly connected to a first telescopic push rod, the telescopic end of the first telescopic push rod is fixedly connected to the rotating block connected to the second fixed rod, the cavity of the first telescopic push rod is connected to the cylindrical cavity on the second fixed shell through a pipeline, the cavity of the first telescopic push rod, the cylindrical cavity of the second fixed shell and the pipeline therebetween are all filled with liquid, and the two rotating blocks are jointly provided with a spray mechanism for changing the direction of the spray.

[0007] Preferably, the liquid spraying mechanism includes two swing frames, which are rotatably arranged on the two rotating blocks respectively, and one end of the first fixed rod close to the adjacent second guide wheel and one end of the second fixed rod close to the adjacent second guide wheel are both rotatably arranged with two symmetrical rotating plates, and a first fixed seat is commonly fixed between the two adjacent rotating plates close to the second guide wheel, the first fixed seat is rotatably connected to the adjacent swing frames, the first fixed seat is installed with a fixed nozzle, the first fixed seat is installed with a first liquid guide tube, and the fixed nozzle is provided with a C-shaped cavity connected with the adjacent first liquid guide tube.

[0008] Preferably, the center line of the fixed nozzle is tangent to the outer edge of the adjacent second guide wheel.

[0009] Preferably, it also includes a clamping mechanism for maintaining the contact area between the metal wire and the corresponding second guide wheel, and the clamping mechanism is jointly arranged on the corresponding two rotating plates, and the clamping mechanism includes two symmetrical second fixed seats, and the two second fixed seats are respectively fixed to the corresponding rotating plates on the first fixed rod and the corresponding rotating plates on the second fixed rod, and the second fixed seat is slidably provided with a first sliding frame, and a spring is installed between the first sliding frame and the adjacent second fixed seat, and the first sliding frame is rotatably provided with a third guide wheel, and the second fixed seat is slidably provided with a symmetrical insertion rod, and a tension spring is installed between the insertion rod and the adjacent second fixed seat, and the first sliding frame is provided with a blind hole that cooperates with the corresponding insertion rod to limit the position, and one end of the first fixing rod close to the adjacent second guide wheel and one end of the second fixing rod close to the adjacent second guide wheel are both rotatably provided with a fourth guide wheel, and the two second fixed seats are jointly provided with a support assembly for supporting the metal wire.

[0010] Preferably, the supporting assembly includes two symmetrical elastic telescopic push rods, which are respectively fixed to the corresponding second fixed seats, the telescopic ends of the elastic telescopic push rods are squeezed together with the adjacent first sliding frame, the first fixed rod and the second fixed rod are both fixed with the second telescopic push rod and the third telescopic push rod, the chamber of the elastic telescopic push rod, the chamber of the second telescopic push rod and the chamber of the third telescopic push rod near the same second fixed seat are connected by pipes, and the chamber of the elastic telescopic push rod, the chamber of the second telescopic push rod, the chamber of the third telescopic push rod and the pipes therebetween are filled with liquid.

[0011] Preferably, the telescopic end of the second telescopic push rod and the telescopic end of the third telescopic push rod are both V-shaped, and the telescopic end of the second telescopic push rod and the telescopic end of the adjacent third telescopic push rod are located on both sides of the adjacent fourth guide wheel.

[0012] Preferably, it also includes a tensioning force adjustment mechanism for adjusting the tightness of the metal wire, and the tensioning force adjustment mechanism is arranged on the support plate, and the tensioning force adjustment mechanism includes a first support frame, the first support frame is fixedly connected to the support plate, the first support frame is rotatably provided with evenly distributed rotating wheels, the support plate is fixedly connected to a second support frame, the second support frame is slidably provided with a second sliding frame, the second sliding frame is rotatably provided with evenly distributed rotating wheels at one end close to the first support frame, the rotating wheels on the second sliding frame and the rotating wheels on the first support frame are staggered, the second support frame is fixedly connected to a third fixed shell, the third fixed shell is fixedly connected to a side close to the first support frame and connected to an air pump, the third fixed shell is provided with an air inlet hole, the third fixed shell is slidably provided with a sliding push rod, the sliding push rod is fixed to the second sliding frame, and the second support frame is provided with a locking assembly for limiting the movement of the sliding push rod.

[0013] Preferably, the diameter of the air inlet hole on the third fixed shell is smaller than the diameter of the air inlet end on the air pump.

[0014] The lock assembly of claim 1, wherein the locking assembly comprises a liquid storage shell, the liquid storage shell being fixedly connected to the second supporting frame, the liquid storage shell being slidably provided with a sliding cover, liquid being contained in the liquid storage shell, a side of the liquid storage shell away from the sliding cover thereof being connected with a second liquid guide tube, the second liquid guide tube being fixedly connected and connected with the third fixed shell, the air pump being connected with a fourth fixed shell, a sliding column being slidably provided in the fourth fixed shell, a spring being installed between the sliding column and the fourth fixed shell, the fourth fixed shell being provided with a circular hole, the sliding column being used to block the circular hole on the fourth fixed shell, the third fixed shell being fixedly connected with a fourth telescopic push rod through a bracket, the cavity of the fourth telescopic push rod being connected to the fourth fixed shell through a pipeline, the telescopic end of the fourth telescopic push rod being fixedly connected with a sliding plate, the sliding plate being inserted into the second liquid guide tube and slidably connected thereto, the sliding plate being used to block the second liquid guide tube, the cavity of the fourth telescopic push rod, the liquid storage shell and the pipeline therebetween are all filled with liquid.

[0015] The present invention has the following advantages: the present invention makes the metal wire bend and distribute through the distribution arrangement of the first working unit, the first fixed rod and the second fixed rod, thereby shortening the bed of the device and facilitating the operator to quickly install the molybdenum wire on the device; the movement of the sliding block is adjusted by the change of the first telescopic push rod to maintain the tension of the metal wire installed on the device; the two fixed nozzles are controlled to always overlap with the metal wire therebetween by the swing of the fixed nozzle, thereby ensuring that the ion water wraps the metal wire and the processing quality of the workpiece is ensured; the contact area between the metal wire and the two second guide wheels is controlled to remain unchanged by the cooperation of the third guide wheel and the adjacent second guide wheels, thereby improving the working stability of the metal wire and improving the processing accuracy of the metal wire; the metal wire is supported by the V-shaped telescopic end on the second telescopic push rod and the V-shaped telescopic end on the third telescopic push rod, so that the metal wire is quickly installed on the two second guide wheels and the two fourth guide wheels, thereby improving the installation accuracy of the metal wire; the metal wire is pre-tightened by the movement of the second sliding frame, thereby improving the installation rate of the metal wire in the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the supporting plate and the components of the second working unit of the present invention; Figure 3 It is a cross-sectional view of the parts of the support plate and the sliding block of the present invention; Figure 4 It is a schematic diagram of the structure of the components of the first fixing rod and the second fixing rod of the present invention; Figure 5 is a cross-sectional view of the clamping mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the support assembly of the present invention; Figure 7 is a cross-sectional view of a support assembly of the present invention; Figure 8 is a cross-sectional view of the tension adjustment mechanism of the present invention; Fig. 9 It is a cross-sectional view of the locking assembly of the present invention.

[0017] Description of reference numerals: 1. Workbench, 11. Material discharge shell, 12. First working unit, 13. Support plate, 131. First guide wheel, 14. Second working unit, 15. First fixed rod, 16. Second fixed rod, 161. Rotating wheel group, 162. Second guide wheel, 17. Rotating block, 18. Guide rod, 19. Sliding block, 191. Sliding rod, 192. First fixed shell, 2. Second fixed shell, 21. First telescopic push rod, 3. Swing frame, 31. Rotating plate, 2. First fixed seat, 33. Fixed nozzle, 34 , first liquid guide tube, 4, second fixed seat, 41, first sliding frame, 42, third guide wheel, 43, insertion rod, 44, fourth guide wheel, 5, elastic telescopic push rod, 51, second telescopic push rod, 52, third telescopic push rod, 7, first support frame, 71, second support frame, 72, second sliding frame, 73, third fixed shell, 74, air pump, 75, sliding push rod, 8, liquid storage shell, 81, second liquid guide tube, 82, fourth fixed shell, 83, sliding column, 84, fourth telescopic push rod, 85, sliding plate. DETAILED DESCRIPTION

[0018] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope provided by the present invention, which should be covered within the protection scope of the present invention.

[0019] Research has found that in the existing large-taper mechanism, the wire storage barrel is located behind the column, so that the metal wire is installed straight on the large-taper mechanism. This arrangement design makes the bed of the wire cutting machine tool longer, resulting in high manufacturing costs of the device and making it difficult for one person to thread the wire.

[0020] In view of this discovery, the present invention designs a large-taper mechanism capable of installing a metal wire by a single person.

[0021] Embodiment 1: A large taper mechanism for convenient wire changing, such as Figure 1-Figure 4As shown, a workbench 1 is included, a control terminal is installed on the front side of the workbench 1, a discharge shell 11 is installed on the workbench 1 through a power unit, the power unit connected to the discharge shell 11 is electrically connected to the control terminal, the power unit is used to drive the discharge shell 11 to move, the workbench 1 is installed with a first working unit 12, a support plate 13 and a second working unit 14, the support plate 13 is provided with a fixing column for installing a wire drum, the first working unit 12 and the second working unit 14 are both electrically connected to the control terminal, a plurality of first guide wheels 131 are rotatably provided on the front of the support plate 13, the first working unit 12, the support plate 13 and the second working unit 14 are electrically connected to the control terminal, The units 14 are arranged sequentially from front to back, the upper surface of the workbench 1 is fixedly connected with a first fixing rod 15 through a bracket, the second working unit 14 is installed with a second fixing rod 16, the first working unit 12 is provided with a wire storage drum, the center line of the wire storage drum on the first working unit 12 is parallel to the center line of the first fixing rod 15, the second fixing rod 16 is located above the first fixing rod 15, the left end of the first fixing rod 15 and the left end of the second fixing rod 16 are both installed with a rotating wheel group 161, the right end of the first fixing rod 15 and the right end of the second fixing rod 16 are both rotatably provided with a second guide wheel 162, the wire storage drum on the first working unit 12, all The first guide wheel 131, all the rotating wheel groups 161 and all the second guide wheels 162 are jointly installed with bent metal wires. The right part of the first fixed rod 15 and the right part of the second fixed rod 16 are both installed with conductive blocks. Both conductive blocks are electrically connected to the control terminal. The molybdenum wire on the first working unit 12 passes around the corresponding first guide wheel 131, the corresponding rotating wheel group 161 and the corresponding second guide wheel 162 in sequence. A slide groove is provided on the upper part of the support plate 13. A sliding block 19 is slidably provided in the slide groove of the support plate 13. A rotating wheel for tightening the molybdenum wire is rotatably provided in the middle part of the sliding block 19. The upper part of the support plate 13 slides A sliding rod 191 is provided, and the sliding rod 191 faces the sliding groove of the support plate 13. A first fixed shell 192 is fixedly connected to the upper surface of the sliding block 19. The first fixed shell 192 is slidably connected to the sliding rod 191. A spring is installed between the sliding rod 191 and the first fixed shell 192. The spring is located in the first fixed shell 192. An adjusting mechanism is provided on the support plate 13. The adjusting mechanism is used to adjust the position of the sliding rod 191 to maintain the tightness of the molybdenum wire. Through the compact arrangement of the first working unit 12, the first fixed rod 15 and the second fixed rod 16, the size of the device is controlled, and it is convenient for a single person to install the molybdenum wire when installing the device.

[0022] like Figure 2-Figure 4As shown, the adjustment mechanism includes a second fixed shell 2, the second fixed shell 2 is fixedly connected to the upper surface of the support plate 13, and the sliding rod 191 is slidably connected to the second fixed shell 2, the sliding rod 191 and the second fixed shell 2 cooperate to form a cylindrical cavity, the left end of the first fixed rod 15 and the left end of the second fixed rod 16 are both rotatably provided with a rotating block 17, the lower rotating block 17 is fixedly connected to a guide rod 18, the guide rod 18 penetrates the upper rotating block 17 and is slidably connected thereto, the upper end of the guide rod 18 is fixedly connected to a first telescopic push rod 21, the telescopic end of the first telescopic push rod 21 is connected to the The rotating block 17 on the upper side is fixedly connected, and the cavity of the first telescopic push rod 21 is connected to the cylindrical cavity on the second fixed shell 2 through a pipeline. The pipeline between the first telescopic push rod 21 and the second fixed shell 2 is made of hose material. The cavity of the first telescopic push rod 21, the cylindrical cavity of the second fixed shell 2 and the pipeline therebetween are all filled with liquid. The position of the sliding rod 191 is changed by utilizing the telescopic change of the first telescopic push rod 21, thereby ensuring the tightness of the rotating wheel on the sliding block 19 to the molybdenum wire. The two rotating blocks 17 are jointly provided with a liquid spraying mechanism, which is used to change the direction of the liquid spraying.

[0023] like Figure 2 , Figure 4 and Figure 5 As shown, the liquid spraying mechanism includes two swing frames 3 symmetrical in the upper and lower parts, the two swing frames 3 are rotatably arranged on two rotating blocks 17 respectively, the right part of the first fixed rod 15 and the right part of the second fixed rod 16 are both rotatably arranged with two rotating plates 31 symmetrical in the front and rear parts, a first fixed seat 32 is fixedly connected between the two adjacent rotating plates 31 in the front and rear parts, the left part of the first fixed seat 32 is rotatably connected to the right part of the adjacent swing frame 3, a fixed nozzle 33 is installed in the middle part of the first fixed seat 32, a first liquid guide tube 34 is installed in the first fixed seat 32, and a liquid circulation device 31 electrically connected to the control terminal is installed on the workbench 1. The ring unit and the liquid circulation unit are used to accelerate the circulation of ionized water. The liquid circulation unit is connected with the two first liquid guide tubes 34. The fixed nozzle 33 is provided with a C-shaped cavity connected with the adjacent first liquid guide tubes 34. The center line of the fixed nozzle 33 is tangent to the outer edge of the adjacent second guide wheel 162. The right part of the first fixed seat 32 and the right part of the fixed nozzle 33 are provided with gaps. The gap of the first fixed seat 32 and the gap of the fixed nozzle 33 are used for the passage of molybdenum wire. The swing adjustment of the fixed nozzle 33 ensures that the ionized water sprayed by the fixed nozzle 33 wraps the molybdenum wire, thereby improving the cutting stability of the device.

[0024] When using a large-taper mechanism to process special parts, the operator first installs the wire reel on the fixed column of the support plate 13, and then the operator winds the molybdenum wire in the wire reel through the two first guide wheels 131 on the upper left side, and then installs the molybdenum wire on the wire storage drum of the first working unit 12. Then the operator starts the first working unit 12 through the control terminal on the workbench 1. The first working unit 12 works to rotate the wire storage drum on it to reel in the molybdenum wire. When the molybdenum wire is fully wound on the wire storage drum of the first working unit 12, the operator closes the first working unit 12 through the control terminal.

[0025] After the winding amount of molybdenum wire is completed, the operator cuts the molybdenum wire, and then the operator holds the molybdenum wire and passes it around the first guide wheel 131 on the lower side of the support plate 13, wherein the molybdenum wire passes through the corresponding first guide wheel 131 from left to right, and then the molybdenum wire passes through the rotating wheel group 161 and the second guide wheel 162 on the first fixed rod 15, and then the molybdenum wire is clamped in the two fixed nozzles 33, and the subsequent molybdenum wire passes through the second guide wheel 162 and the rotating wheel group 161 on the second fixed rod 16, and then the molybdenum wire passes around the first guide wheel 162 and the rotating wheel group 161 on the upper side of the support plate 13 from right to left. A guide wheel 131 and a rotating wheel of the sliding block 19 are installed again on the wire storage drum of the first working unit 12 after the molybdenum wire is wound. Then the operator uses a handheld tensioning tool to apply tensioning force to the molybdenum wire, and finally reinstalls the molybdenum wire on the wire storage drum of the first working unit 12. During the process of tightening the molybdenum wire, the molybdenum wire squeezes the rotating wheel of the sliding block 19 to move downward, and the sliding block 19 drives the first fixed shell 192 to move and compress the connected spring. At this time, the elastic force of the spring connected to the first fixed shell 192 is the tensioning force of the molybdenum wire.

[0026] During the above-mentioned molybdenum wire installation operation, since the first working unit 12 is located in front of the second working unit 14, the molybdenum wire wound on the device is distributed in a bent shape, thereby shortening the bed of the device and facilitating the operator to quickly install the molybdenum wire on the device.

[0027] After the molybdenum wire is installed, the operator installs the workpiece on the discharge shell 11. The operator controls the second working unit 14 to work through the control terminal. The second working unit 14 drives the second fixed rod 16 to move accordingly, so that the molybdenum wire between the two second guide wheels 162 is in an inclined state. Then the operator starts the first working unit 12, the conductive block of the first fixed rod 15, the conductive block of the second fixed rod 16 and the liquid circulation unit by controlling the rotation. The conductive block of the first fixed rod 15 and the conductive block of the second fixed rod 16 work to energize the molybdenum wire. Then the liquid circulation unit works to inject ionized water into the two first liquid guide tubes 34. The ionized water is sprayed from the two fixed nozzles 33 and sprayed onto the molybdenum wire between the two second guide wheels 162. Then the first working unit 12 works to move the molybdenum wire to cut the workpiece and process specific parts.

[0028] During the cutting process of parts of different specifications, the operator controls the second working unit 14 to work and adjusts the distance between the second fixed rod 16 and the first fixed rod 15. The second fixed rod 16 drives the adjacent rotating block 17 to move upward. The upper rotating block 17 moves to retract the telescopic end of the first telescopic push rod 21 therein. The liquid in the chamber of the first telescopic push rod 21 is injected into the second fixed shell 2 through the connected pipe, so that the sliding rod 191 in the second fixed shell 2 moves downward. The sliding rod 191 drives the sliding block 19 to move downward through the connected spring and the first fixed shell 192, thereby controlling the extrusion force of the rotating wheel on the sliding block 19 on the molybdenum wire.

[0029] During the movement of the second fixed rod 16 driven by the second working unit 14, the second fixed rod 16 drives the guide rod 18 and the lower rotating block 17 to swing together through the upper rotating block 17. The two rotating blocks 17 swing through the two swing frames 3 and the two first fixed seats 32 to drive the four rotating plates 31 to rotate. The rotation of the four rotating plates 31 causes the two first fixed seats 32 to drive the two fixed nozzles 33 to rotate together, ensuring that the two fixed nozzles 33 are always located on the same straight line with the molybdenum wire between the two second guide wheels 162, so that the sprayed ionized water is always located on the molybdenum wire wrapped between the two second guide wheels 162.

[0030] After completing the processing of specific parts, the operator turns off the first working unit 12, the conductive block of the first fixed rod 15, the conductive block of the second fixed rod 16 and the liquid circulation unit through the control terminal. The subsequent operator removes the processed workpiece from the discharge shell 11, and then repeats the above operation when processing parts of other specifications.

[0031] Research has found that during the operation of the existing large-taper mechanism, as the inclination angle of the metal wire changes, the contact area between the metal wire and the guide wheel in the large-taper mechanism becomes smaller, affecting the working stability of the metal wire.

[0032] Embodiment 2: Based on embodiment 1, Figure 4 and Figure 5As shown, it also includes a clamping mechanism for maintaining the contact area between the molybdenum wire and the corresponding second guide wheel 162. The clamping mechanism is jointly arranged on the corresponding two rotating plates 31. The clamping mechanism includes two second fixed seats 4 that are symmetrical in upper and lower directions. The two second fixed seats 4 are respectively fixed to the opposite sides of the two rotating plates 31 on the rear side. A first sliding frame 41 is slidably arranged in the second fixed seat 4. Two springs that are symmetrical in front and back are installed between the first sliding frame 41 and the adjacent second fixed seat 4. A third guide wheel 42 is rotatably arranged at the front of the first sliding frame 41. The third guide wheel 42 contacts and cooperates with the adjacent second guide wheel 162. The right part of the second fixed seat 4 is slidably arranged with two plug rods that are symmetrical in upper and lower directions. 43, a tension spring is installed between the insertion rod 43 and the adjacent second fixed seat 4, a blind hole is provided on the right part of the first sliding frame 41, the blind hole of the first sliding frame 41 is limited and matched with the corresponding insertion rod 43, the right part of the first fixed rod 15 and the right part of the second fixed rod 16 are rotatably provided with a fourth guide wheel 44, the fourth guide wheel 44 is located between the adjacent rotating wheel group 161 and the adjacent second guide wheel 162, the two second fixed seats 4 are jointly provided with a support assembly for supporting the molybdenum wire, and the third guide wheel 42 is contacted and matched with the adjacent second guide wheel 162 to ensure that the contact area between the second guide wheel 162 and the molybdenum wire remains relatively unchanged, thereby maintaining the working stability of the molybdenum wire and improving the processing accuracy.

[0033] like Figure 6 and Figure 7 As shown, the support assembly includes two elastic telescopic push rods 5 which are symmetrical in upper and lower directions. The two elastic telescopic push rods 5 are respectively fixed to the left sides of the two second fixed seats 4. The telescopic ends of the two elastic telescopic push rods 5 are located on the outsides of the two first sliding frames 41, and the telescopic ends of the elastic telescopic push rods 5 are squeezed and matched with the adjacent first sliding frames 41. The right part of the first fixed rod 15 and the right part of the second fixed rod 16 are both fixed with the second telescopic push rod 51 and the third telescopic push rod 52. The chamber of the elastic telescopic push rod 5, the chamber of the adjacent second telescopic push rod 51 and the chamber of the adjacent third telescopic push rod 52 are all connected through a pipeline. The elastic telescopic push rod 5 The chamber, the chamber of the second telescopic push rod 51, the chamber of the third telescopic push rod 52 and the pipes therebetween are filled with liquid, the telescopic ends of the second telescopic push rod 51 and the telescopic ends of the third telescopic push rod 52 are both V-shaped, the telescopic ends of the second telescopic push rod 51 and the adjacent third telescopic push rod 52 are located on both sides of the adjacent fourth guide wheel 44, and the V-shaped telescopic ends of the second telescopic push rod 51 and the V-shaped telescopic ends of the third telescopic push rod 52 are used to support and guide the molybdenum wire, so that the molybdenum wire is located outside the second guide wheel 162 and the fourth guide wheel 44, so that the molybdenum wire can be quickly installed on the fourth guide wheel 44 and the second guide wheel 162.

[0034] In the initial state, the two first sliding frames 41 are located at opposite ends of the two second fixed seats 4, and at this time, the two outermost insertion rods 43 are respectively inserted into the blind holes of the two first sliding frames 41, so that the V-shaped telescopic ends of the two second telescopic push rods 51 are located on the outside of the two fourth guide wheels 44, and at the same time, the V-shaped telescopic ends of the two third telescopic push rods 52 are located on the right side of the two second guide wheels 162.

[0035] When the operator repeats the above operations to install the molybdenum wire on the device, the operator repeats the above operations, and when the molybdenum wire is wound onto the first fixed rod 15 and the second fixed rod 16, the molybdenum wire passes through the lower rotating wheel group 161, the V-shaped telescopic end of the lower second telescopic push rod 51 and the V-shaped telescopic end of the lower third telescopic push rod 52, and subsequently the molybdenum wire passes through the V-shaped telescopic end of the upper third telescopic push rod 52, the V-shaped telescopic end of the upper second telescopic push rod 51 and the upper rotating wheel group 161, wherein the limiting support function of the V-shaped telescopic ends of the two second telescopic push rods 51 and the V-shaped telescopic ends of the two third telescopic push rods 52 facilitates the rapid pre-installation of the molybdenum wire.

[0036] After the pre-installation of the molybdenum wire is completed, the operator first pulls out the two rods 43 on the lower second fixed seat 4, and the two rods 43 move to stretch the connected tension springs, and then the operator controls the lower first sliding frame 41 to move upward, and then the operator loosens the two rods 43 on the lower side, wherein the upper rod 43 of the lower second fixed seat 4 is reinserted into the blind hole of the lower first sliding frame 41, and the lower first sliding frame 41 moves to squeeze the telescopic end of the adjacent elastic telescopic push rod 5, and the liquid in the adjacent second telescopic push rod 51 and the liquid in the adjacent third telescopic push rod 52 are drawn into the chamber of the elastic telescopic push rod 5, so that the V-shaped telescopic end of the lower second telescopic push rod 51 and the V-shaped telescopic end of the lower third telescopic push rod 52 are contracted, and subsequently the lower second telescopic push rod 51 and the lower third telescopic push rod 52 slowly place the supported molybdenum wire on the lower fourth guide wheel 44 and the lower second guide wheel 162.

[0037] After the first sliding frame 41 on the lower side has completed its movement, the first sliding frame 41 on the lower side drives the third guide wheel 42 on the lower side to fit together with the second guide wheel 162 on the lower side to complete the clamping of the molybdenum wire, and the subsequent operator controls the movement of the first sliding frame 41 on the upper side, and the movement of the first sliding frame 41 controls the second telescopic push rod 51 on the upper side and the third telescopic push rod 52 on the upper side to move accordingly, so that the molybdenum wire gradually fits the fourth guide wheel 44 on the upper side and the second guide wheel 162 on the upper side, completing the rapid installation and replacement of the molybdenum wire.

[0038] With the cooperation of the two third guide wheels 42 and the two second guide wheels 162, while the control terminal controls the movement of the second fixed rod 16 through the second working unit 14, the above operation is repeated to make the molybdenum wire between the two second guide wheels 162 in an inclined state, and the above process is repeated at the same time. During the rotation of the four rotating plates 31, the two rotating plates 31 on the rear side simultaneously drive the two third guide wheels 42 to rotate together through the two second fixed seats 4 and the two first sliding frames 41. The rotation of the third guide wheel 42 ensures the contact area of ​​the molybdenum wire on the two second guide wheels 162, ensures that the molybdenum wire remains stable on the two second guide wheels 162, and avoids the molybdenum wire from deviating on the two second guide wheels 162, thereby improving the processing accuracy of the device.

[0039] When the molybdenum wire is detached from the two second guide wheels 162, the operator repeats the above operation to pull the four insert rods 43 to control the two first sliding frames 41 to perform the above-mentioned opposite movement, so that the telescopic ends of the two second telescopic push rods 51 and the telescopic ends of the two third telescopic push rods 52 move back and forth, and adjust the position of the molybdenum wire so that the molybdenum wire is re-stuck on the two second guide wheels 162, and then repeat the above operation for the processing operations of the remaining parts.

[0040] Embodiment 3: Based on embodiment 2, Figure 2 and Figure 8 As shown, it also includes a tension adjustment mechanism for adjusting the tightness of the molybdenum wire. The tension adjustment mechanism is arranged on the support plate 13. The tension adjustment mechanism includes a first support frame 7. The first support frame 7 is fixedly connected to the support plate 13. The first support frame 7 is rotatably provided with three evenly distributed rotating wheels. The front side of the support plate 13 is fixedly connected to a second support frame 71. The second support frame 71 is located below the first support frame 7. The front part of the second support frame 71 is slidably provided with a second sliding frame 72. The upper part of the second sliding frame 72 is rotatably provided with two evenly distributed rotating wheels. The two rotating wheels of the second sliding frame 72 and the three rotating wheels of the first support frame 7 are staggered. A third fixed shell 73 is fixedly connected to the front portion of the support frame 71, and an upper portion of the right side surface of the third fixed shell 73 is fixedly connected and connected to an air pump 74, which is electrically connected to the control terminal. An air inlet is provided at the upper portion of the left side surface of the third fixed shell 73, and the diameter of the air inlet on the third fixed shell 73 is smaller than the diameter of the air inlet end of the air pump 74. A sliding push rod 75 fixed to the second sliding frame 72 is slidably provided at the lower portion of the third fixed shell 73, and a locking assembly for limiting the movement of the sliding push rod 75 is provided on the second support frame 71. The operation of the air pump 74 is utilized to control the movement of the second sliding frame 72 to automatically pre-tighten the molybdenum wire, thereby simplifying the installation steps of the molybdenum wire and improving the simplicity of the assembly process of the device.

[0041] like Figure 8 and Fig. 9As shown, the locking assembly includes a liquid storage shell 8, which is fixed to the right side of the second support frame 71, a sliding cover is slidably provided on the upper part of the liquid storage shell 8, liquid is stored in the liquid storage shell 8, and a second liquid guide tube 81 is connected to the lower side of the liquid storage shell 8, and the lower end of the second liquid guide tube 81 is fixedly connected to and communicated with the lower part of the third fixed shell 73, and the connecting port of the second liquid guide tube 81 and the third fixed shell 73 is located below the upper surface of the sliding push rod 75, and the right end of the air pump 74 is connected to the fourth fixed shell 82, and a sliding column 83 is slidably provided in the fourth fixed shell 82, and a spring is installed between the sliding column 83 and the fourth fixed shell 82, and a circular hole is provided on the front side of the fourth fixed shell 82, and the circular hole of the fourth fixed shell 82 faces the first working unit. The wire storage cylinder of element 12, the sliding column 83 is used to block the circular hole on the fourth fixed shell 82, the right side of the third fixed shell 73 is fixedly connected with the fourth telescopic push rod 84 through the bracket, the cavity of the fourth telescopic push rod 84 is connected with the fourth fixed shell 82 through a pipeline, the telescopic end of the fourth telescopic push rod 84 is fixedly connected with a sliding plate 85 that penetrates the second liquid guide tube 81 and is slidably connected thereto, the sliding plate 85 is used to block the second liquid guide tube 81, the chamber of the fourth telescopic push rod 84, the liquid storage shell 8 and the pipeline between the two are all filled with liquid, and the blocking cooperation of the sliding plate 85 and the second liquid guide tube 81 is used to limit the second sliding frame 72 after moving, thereby ensuring the pre-tightening force of the rotating wheel on the second sliding frame 72 on the molybdenum wire.

[0042] After the molybdenum wire is pre-installed, the molybdenum wire is located at the lower side of the three rotating wheels on the first support frame 7 and above the two rotating wheels on the second sliding frame 72. The operator starts the air pump 74 through the control terminal. The air pump 74 works to extract the gas in the third fixed shell 73. At the same time, the air pump 74 sprays the gas into the fourth fixed shell 82. The gas blows the sliding column 83 to move and gradually removes the obstruction of the circular hole on the fourth fixed shell 82. The sliding column 83 moves to compress the connected spring. At this time, the gas is ejected through the circular hole on the fourth fixed shell 82. Since the diameter of the air inlet hole on the third fixed shell 73 is smaller than the diameter of the through hole in the air pump 74, the pressure in the third fixed shell 73 gradually forms a negative pressure.

[0043] During the movement of the sliding column 83, the sliding column 83 squeezes the liquid in the fourth fixed shell 82 into the cavity of the fourth telescopic push rod 84 through the connected pipe, and the telescopic end of the fourth telescopic push rod 84 will drive the sliding plate 85 to move upward to release the blockage of the second liquid guide tube 81. Then, under the action of the negative pressure in the third fixed shell 73, the sliding push rod 75 drives the second sliding frame 72 to move upward, and the rotating wheel on the second sliding frame 72 will squeeze the molybdenum wire on the lower side of the first support frame 7 to bend and adjust the tension of the molybdenum wire. The sliding push rod 75 moves to pump the liquid in the liquid storage shell 8 through the second liquid guide tube 81 to the inner lower part of the third fixed shell 73.

[0044] After the air pump 74 has worked for a period of time, the control terminal turns off the air pump 74. At this time, under the elastic force of the spring connected to the sliding column 83, the sliding column 83 moves in the opposite direction and resets. The sliding column 83 again draws the liquid in the fourth telescopic push rod 84 into the fourth fixed shell 82. The telescopic end of the fourth telescopic push rod 84 will drive the sliding plate 85 to move in the opposite direction and reset. The sliding plate 85 blocks the second liquid guide tube 81 again. The liquid in the lower inner part of the third fixed shell 73 cannot flow, so that the second sliding frame 72 is fixed relative to the third fixed shell 73, thereby ensuring that the molybdenum wire remains taut and the pre-tightening of the molybdenum wire is quickly completed.

[0045] In the process of applying pre-tightening force to the molybdenum wire, the operator selects the power of the air pump 74 on the control terminal. The air pump 74 works to control the negative pressure in the third fixed shell 73, thereby controlling the rotating wheel on the second sliding frame 72 to apply a pre-tightening force of corresponding negative pressure to the molybdenum wire.

[0046] While the embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A large taper mechanism for facilitating wire changing, characterized by: The invention comprises a workbench (1), wherein the workbench (1) is provided with a discharge shell (11), a first working unit (12), a support plate (13) and a second working unit (14); the support plate (13) is rotatably provided with a plurality of first guide wheels (131); the workbench (1) is fixedly connected with a first fixing rod (15); the second working unit (14) is provided with a second fixing rod (16); the first working unit (12) is provided with a wire storage drum; the center line of the wire storage drum on the first working unit (12) is parallel to the center line of the first fixing rod (15); the first fixing rod (15) and the second fixing rod (16) are both provided with a rotating wheel group (161) and a second guide wheel (162); The wire storage drum on the first working unit (12), all the first guide wheels (131), all the rotating wheel groups (161) and all the second guide wheels (162) are jointly installed with bent metal wires; the support plate (13) is slidably provided with a sliding block (19); the sliding block (19) is rotatably provided with a rotating wheel; the support plate (13) is slidably provided with a sliding rod (191); the sliding block (19) is fixedly connected to a first fixed shell (192) slidably connected to the sliding rod (191); a spring is installed between the sliding rod (191) and the first fixed shell (192); and an adjusting mechanism for adjusting the position of the sliding rod (191) is provided on the support plate (13).

2. A large taper mechanism for facilitating wire changing according to claim 1, characterized in that: The adjustment mechanism comprises a second fixed shell (2), the second fixed shell (2) being fixedly connected to the support plate (13), and the sliding rod (191) and the second fixed shell (2) being slidably connected, the sliding rod (191) and the second fixed shell (2) being cooperated to form a cylindrical cavity, the first fixed rod (15) and the second fixed rod (16) being rotatably provided with a rotating block (17), the rotating block (17) on the first fixed rod (15) being fixedly connected to a guide rod (18), the guide rod (18) penetrating the rotating block (17) on the second fixed rod (16) and The guide rod (18) is slidably connected thereto, and one end of the guide rod (18) away from the first fixed rod (15) is fixedly connected to a first telescopic push rod (21); the telescopic end of the first telescopic push rod (21) is fixedly connected to the rotating block (17) connected to the second fixed rod (16); the cavity of the first telescopic push rod (21) is connected to the cylindrical cavity of the second fixed shell (2) through a pipeline; the cavity of the first telescopic push rod (21), the cylindrical cavity of the second fixed shell (2) and the pipeline therebetween are all filled with liquid; and the two rotating blocks (17) are jointly provided with a liquid spraying mechanism for changing the direction of liquid spraying.

3. A large taper mechanism for facilitating wire change according to claim 2, characterized in that: The liquid spraying mechanism comprises two swing frames (3), the two swing frames (3) are rotatably arranged on the two rotating blocks (17) respectively, one end of the first fixed rod (15) close to the adjacent second guide wheel (162) and one end of the second fixed rod (16) close to the adjacent second guide wheel (162) are both rotatably arranged with two symmetrical rotating plates (31), a first fixed seat (32) is fixedly connected between the two adjacent rotating plates (31) close to the second guide wheel (162), the first fixed seat (32) is rotatably connected to the adjacent swing frame (3), the first fixed seat (32) is equipped with a fixed nozzle (33), the first fixed seat (32) is equipped with a first liquid guide tube (34), and the fixed nozzle (33) is provided with a C-shaped cavity communicating with the adjacent first liquid guide tube (34).

4. A large taper mechanism for facilitating wire changing according to claim 3, characterized in that: The center line of the fixed nozzle (33) is tangent to the outer edge of the adjacent second guide wheel (162).

5. A large taper mechanism for facilitating wire replacement according to claim 3, characterized in that: The invention also comprises a clamping mechanism for maintaining the contact area between the metal wire and the corresponding second guide wheel (162), the clamping mechanism being arranged on the two corresponding rotating plates (31), the clamping mechanism comprising two symmetrical second fixed seats (4), the two second fixed seats (4) being respectively fixed to the corresponding rotating plates (31) on the first fixed rod (15) and the corresponding rotating plates (31) on the second fixed rod (16), the second fixed seats (4) being slidably provided with a first sliding frame (41), a spring being installed between the first sliding frame (41) and the adjacent second fixed seats (4), the first sliding frame (41) being arranged to move the first sliding frame (41) and the second fixed seats (4 ...) and the first sliding frame (4) being arranged to move the first sliding frame (4) and the second fixed seats (4) being arranged to move the first sliding frame (4) and the first sliding frame (4) being arranged to move the first sliding frame (4) and the second fixed seats The movable frame (41) is rotatably provided with a third guide wheel (42), the second fixed seat (4) is slidably provided with a symmetrical insertion rod (43), a tension spring is installed between the insertion rod (43) and the adjacent second fixed seat (4), the first sliding frame (41) is provided with a blind hole that is limitedly matched with the corresponding insertion rod (43), one end of the first fixed rod (15) close to the adjacent second guide wheel (162) and one end of the second fixed rod (16) close to the adjacent second guide wheel (162) are both rotatably provided with a fourth guide wheel (44), and the two second fixed seats (4) are jointly provided with a support assembly for supporting the metal wire.

6. A large taper mechanism for facilitating wire replacement according to claim 5, characterized in that: The support assembly comprises two symmetrical elastic telescopic push rods (5), the two elastic telescopic push rods (5) are respectively fixed to the corresponding second fixed seat (4), the telescopic ends of the elastic telescopic push rods (5) are squeezed and matched with the adjacent first sliding frame (41), the first fixed rod (15) and the second fixed rod (16) are both fixed with a second telescopic push rod (51) and a third telescopic push rod (52), the chamber of the elastic telescopic push rod (5), the chamber of the second telescopic push rod (51) and the chamber of the third telescopic push rod (52) on the same second fixed seat (4) are all connected through a pipeline, and the chamber of the elastic telescopic push rod (5), the chamber of the second telescopic push rod (51), the chamber of the third telescopic push rod (52) and the pipelines therebetween are filled with liquid.

7. A large taper mechanism for facilitating wire replacement according to claim 6, characterized in that: The telescopic end of the second telescopic push rod (51) and the telescopic end of the third telescopic push rod (52) are both V-shaped, and the telescopic end of the second telescopic push rod (51) and the telescopic end of the adjacent third telescopic push rod (52) are located on both sides of the adjacent fourth guide wheel (44).

8. A large taper mechanism for facilitating wire changing according to claim 1, characterized in that: The invention also comprises a tension adjustment mechanism for adjusting the tension of the metal wire, the tension adjustment mechanism being arranged on the support plate (13), the tension adjustment mechanism comprising a first support frame (7), the first support frame (7) being fixedly connected to the support plate (13), the first support frame (7) being rotatably provided with evenly distributed rotating wheels, the support plate (13) being fixedly connected to a second support frame (71), the second support frame (71) being slidably provided with a second sliding frame (72), the second sliding frame (72) being rotatably provided with evenly distributed rotating wheels at one end close to the first support frame (7), The rotating wheels on the second sliding frame (72) and the rotating wheels on the first supporting frame (7) are arranged in a staggered manner; the second supporting frame (71) is fixedly connected to a third fixed shell (73); a side of the third fixed shell (73) close to the first supporting frame (7) is fixedly connected to and communicated with an air pump (74); the third fixed shell (73) is provided with an air inlet hole; a sliding push rod (75) is slidably provided on the third fixed shell (73); the sliding push rod (75) is fixedly connected to the second sliding frame (72); and a locking assembly for limiting the movement of the sliding push rod (75) is provided on the second supporting frame (71).

9. A large taper mechanism for facilitating wire changing according to claim 8, characterized in that: The diameter of the air inlet hole on the third fixed shell (73) is smaller than the diameter of the air inlet end on the air pump (74).

10. A large-taper mechanism for facilitating wire replacement according to claim 8, characterized in that: The locking assembly comprises a liquid storage shell (8), the liquid storage shell (8) being fixedly connected to the second support frame (71), the liquid storage shell (8) being slidably provided with a sliding cover, the liquid storage shell (8) containing liquid, a second liquid guide tube (81) being connected to a side of the liquid storage shell (8) away from the sliding cover, the second liquid guide tube (81) being fixedly connected to and connected with the third fixed shell (73), the air pump (74) being connected with a fourth fixed shell (82), a sliding column (83) being slidably provided in the fourth fixed shell (82), a spring being installed between the sliding column (83) and the fourth fixed shell (82), the fourth fixed shell (82) being provided with The fourth fixed shell (82) has a circular hole, the sliding column (83) is used to block the circular hole on the fourth fixed shell (82), the third fixed shell (73) is fixedly connected to a fourth telescopic push rod (84) through a bracket, the cavity of the fourth telescopic push rod (84) is connected to the fourth fixed shell (82) through a pipeline, the telescopic end of the fourth telescopic push rod (84) is fixedly connected to a sliding plate (85), the sliding plate (85) is inserted into the second liquid guide tube (81) and is slidably connected thereto, the sliding plate (85) is used to block the second liquid guide tube (81), and the cavity of the fourth telescopic push rod (84), the liquid storage shell (8) and the pipeline between the two are all filled with liquid.

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