CN110265276B - Automatic filament winding equipment for CT bulb tube filament - Google Patents
Automatic filament winding equipment for CT bulb tube filament Download PDFInfo
- Publication number
- CN110265276B CN110265276B CN201910545338.8A CN201910545338A CN110265276B CN 110265276 B CN110265276 B CN 110265276B CN 201910545338 A CN201910545338 A CN 201910545338A CN 110265276 B CN110265276 B CN 110265276B
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- needle
- metal wire
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- 238000009730 filament winding Methods 0.000 title claims abstract description 46
- 238000004804 winding Methods 0.000 claims abstract description 82
- 229910052751 metal Inorganic materials 0.000 claims abstract description 75
- 239000002184 metal Substances 0.000 claims abstract description 75
- 238000003825 pressing Methods 0.000 claims abstract description 73
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005452 bending Methods 0.000 abstract description 4
- 238000002788 crimping Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 description 2
- 241000533950 Leucojum Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/06—Cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
- H01J9/06—Machines therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2209/00—Apparatus and processes for manufacture of discharge tubes
- H01J2209/02—Manufacture of cathodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2235/00—X-ray tubes
- H01J2235/06—Cathode assembly
Abstract
An automatic filament winding device for a CT bulb tube filament comprises a metal wire unreeling mechanism, a metal wire guiding mechanism, a wire cutting device, a filament winding device and a metal wire clamp tension control mechanism; the wire guide mechanism comprises an annular guide mechanism and a plurality of wire guide sleeves; the wire clamp tension control mechanism comprises a driving clamping and conveying wheel, a driven clamping and conveying wheel, a clamping and conveying lifting mechanism, a supporting plate, a wire pressing rotating shaft, a semicircular wire pressing block, a torsion spring and a swing arm, wherein the lower end of the semicircular wire pressing block is provided with a wire pressing end protruding downwards. The annular guide mechanism expands the metal wire as much as possible and avoids bending, so that the metal wire is ensured to have higher flatness; the tension control mechanism is sent to the metal fastener, makes the metal wire be in the tensioning state always to make the winding of bulb filament more even, improve the homogeneity that bulb filament launched, and make the bulb filament in the epaxial resistance subsection even, generate heat evenly, avoid local overheated and fuse, extension bulb filament's life.
Description
Technical Field
The invention relates to CT bulb tube processing equipment, in particular to automatic filament winding equipment for CT bulb tube filaments.
Background
CT machines are widely used in the medical field with high resolution and visual and accurate diagnosis. The CT bulb tube, also called X-ray tube, is a core component in CT machine for generating X-ray, and the technological perfection of CT bulb tube directly affects the working effect of CT machine. The X-ray tube mainly comprises an anode, a cathode and a glass shell, wherein the anode consists of an anode head, an anode cap, a glass ring and an anode handle, and the cathode mainly consists of a filament, a focusing cover (or called as a cathode head), a cathode sleeve, a glass stem and the like. The working principle is as follows: heating the filament to generate electron cloud as an electron source; a strong electric field is formed by applying enough voltage (kilovolt level) between the anode and the cathode, so that electrons are accelerated to move towards the anode and high-speed electron flow is formed; the anode is used for attracting electrons and accelerating electrons, and enabling the electrons moving at high speed to bombard the target surface of the anode head, and the target surface is subjected to electron bombardment so as to sharply block the electrons to generate X rays.
From the above, the filament is a key element of the CT bulb, and the emission uniformity of the filament in a high-temperature environment directly influences the uniformity of the output X-rays, for example, the imaged snowflake points are increased; in addition, the filament is generally made of tungsten wire with melting point as high as 3000 ℃, but in a CT bulb tube, the filament is easy to fuse, so that imaging cannot be performed.
The main reasons of the uneven emission and easy fusing of the filament are that the winding of the filament is uneven, the winding density is different along the axial direction of the filament, the two ends are generally relatively sparse, and the middle is relatively dense, which is caused by the flattening control and the tension control of the existing filament winding equipment which lack metal wires (tungsten wires and rhenium tungsten wires). The flattening control and tension control of the metal wire (tungsten wire and rhenium tungsten wire) are far more difficult than those of yarns or films, and the tension cannot be controlled by the speed difference of clamping and conveying/traction during high-speed winding, and the aim of completely flattening the metal wire cannot be achieved by simple traction, so that the flattening control and tension control are not well solved on automatic filament winding equipment, and the problems of uneven filament emission and easy fusing still exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic filament winding device for a CT bulb tube filament, which can enable the winding of the bulb tube filament to be more uniform, improve the emission uniformity of the bulb tube filament and prolong the service life of the bulb tube filament. The technical scheme adopted is as follows:
an automatic filament winding device for a CT bulb tube filament comprises a metal wire unreeling mechanism, a metal wire guiding mechanism, a wire cutting device and a filament winding device which are sequentially arranged on a frame from back to front, and is characterized in that: the wire clamp tension control mechanism is also included; the metal wire guiding mechanism comprises an annular guiding mechanism and a plurality of metal wire guiding sleeves, the annular guiding mechanism and each metal wire guiding sleeve are sequentially arranged between the metal wire unreeling mechanism and the wire cutting device from back to front, and the metal wire guiding sleeve at the forefront corresponds to the filament winding device in position; the wire clamp tension-feeding control mechanism is arranged between the annular guide mechanism and the forefront wire guide sleeve, and comprises a driving clamping and feeding wheel, a driven clamping and feeding wheel, a clamping and feeding lifting mechanism, a supporting plate, a wire pressing rotating shaft, a semicircular wire pressing block, a torsion spring and a swing arm, wherein the lower end of the semicircular wire pressing block is provided with a wire pressing end protruding downwards; the driving pinch wheel and the pinch lifting mechanism are both arranged on the frame, the driven pinch wheel is rotatably arranged on the power output end of the pinch lifting mechanism, and the driven pinch wheel is positioned right above the driving pinch wheel; the support plate is arranged on the frame and in front of the driving pinch wheel, the line pressing rotating shaft is rotatably arranged on the frame, the semicircular line pressing block is arranged on the line pressing rotating shaft and above the support plate, the torsion spring is sleeved on the line pressing rotating shaft, one end of the torsion spring is connected with the frame, and the other end of the torsion spring is connected with the line pressing rotating shaft; the swing arm is connected between the power output end of the clamping and conveying lifting mechanism and the pressing line rotating shaft.
The definitions of the front and the rear are as follows: the wire reaches first and then reaches slowly and then reaches first along the conveying direction of the wire.
As a preferable scheme of the invention, the clamping lifting mechanism is a clamping cylinder; the swing arm comprises a swing arm shaft, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; the swing arm shaft is rotatably arranged on the frame; the fixed end of the first connecting rod is fixedly connected with a piston rod of the air clamping cylinder, the fixed end of the second connecting rod is fixedly connected with the swing arm shaft, the movable end of the first connecting rod is hinged with the movable end of the second connecting rod, the fixed end of the third connecting rod is fixedly connected with the swing arm shaft, the fixed end of the fourth connecting rod is fixedly connected with the wire pressing rotating shaft, and the movable end of the third connecting rod is hinged with the movable end of the fourth connecting rod.
As a preferable scheme of the invention, the annular guide mechanism comprises a longitudinal support plate, a plurality of wire guide wheels and a plurality of limiting sheets, wherein each limiting sheet is provided with a strip-shaped groove and a notch communicated with the strip-shaped groove, each wire guide wheel is rotatably arranged on the surface of the longitudinal support plate, each wire guide wheel is sequentially arranged to form a circle, and each limiting sheet is respectively arranged at the rear end of the corresponding wire guide wheel.
As a further preferable scheme of the invention, the filament winding device comprises a workbench, a support, a winding needle, a needle seat, a winding lifting mechanism, a winding rotating mechanism, a clamping jaw and a winding needle positioning barrel; the workbench is arranged on the frame, an operation hole is formed in the middle of the workbench, the winding needle positioning cylinder is arranged on the frame below the workbench, and the upper end of the winding needle positioning cylinder is exposed out of the operation hole on the workbench; the support is arranged on the stand and above the workbench, a sliding channel along the up-down direction is formed in the support, the needle seat is arranged in the sliding channel and can move up and down along the sliding channel, a needle hole along the up-down direction is formed in the needle seat, and the winding needle is arranged in the needle hole through a first bearing and corresponds to the upper end of the winding needle positioning barrel; the winding rotary mechanism is arranged on the needle seat, and the power output end of the winding rotary mechanism is in transmission connection with the upper end of the winding needle; the clamping jaw is arranged at the lower end of the needle seat, and the clamping jaw and the winding needle form a clamp; the winding lifting mechanism is arranged on the support, and the power output end of the winding lifting mechanism is connected with the needle seat.
As a further preferable scheme of the invention, the winding lifting mechanism comprises a winding lifting motor, a screw rod, a nut and a connecting block; the screw rod is arranged on the support through a second bearing, and the screw rod is arranged in parallel with the winding needle; the winding lifting motor is arranged on the support and is in transmission connection with the screw rod; the nut is sleeved on the screw rod, a strip-shaped hole is formed in the side wall of the sliding channel, one end of the connecting block is connected with the nut, and the other end of the connecting block penetrates through the strip-shaped hole to be connected with the needle seat.
As a further preferable mode of the invention, the filament winding device further comprises a supporting fork and a supporting fork lifting mechanism, wherein the supporting fork lifting mechanism is arranged on the frame and below the workbench, and the supporting fork is arranged on the power output end of the supporting fork lifting mechanism.
As a further preferable scheme of the invention, the filament winding device further comprises a first pin positioning mechanism and a second pin positioning mechanism, wherein the first pin positioning mechanism and the second pin positioning mechanism are arranged on the workbench side by side and are respectively positioned at two sides of the winding needle.
As a still further preferable scheme of the invention, the first pin positioning mechanism and the second pin positioning mechanism both comprise a fork knife with V-shaped notches and a fork knife translation mechanism, the fork knife translation mechanism is arranged on the workbench, the fork knife is arranged on the power output end of the fork knife translation mechanism, and the fork knife of the first pin positioning mechanism and the fork knife of the second pin positioning mechanism are arranged in parallel.
As a further preferable scheme of the invention, the filament winding device further comprises a wire pressing mechanism, wherein the wire pressing mechanism comprises a wire pressing cutter and a wire pressing cutter translation mechanism, the wire pressing cutter translation mechanism is arranged on the workbench, and the wire pressing cutter is arranged on the power output end of the wire pressing cutter translation mechanism.
Compared with the prior art, the invention has the following advantages:
the automatic filament winding device for the CT bulb tube filament is characterized in that on the basis of an original basic structure, a metal wire guide mechanism is arranged to comprise an annular guide mechanism and a plurality of metal wire guide sleeves, the annular guide mechanism expands a metal wire as much as possible and avoids bending, and when a filament winding device performs high-speed winding traction, the metal wire is ensured to have higher flatness; on this basis, add the metal fastener and send tension control mechanism for the metal wire is pressing from both sides after sending in place, can withdraw the clamp and send the effect and start tension control simultaneously, make filament winding device when coiling heliciform bulb filament, the metal wire is in tensioning state always, thereby make the winding of bulb filament more even, improve the homogeneity that bulb filament launched, and make bulb filament in the epaxial resistance subsection even, generate heat evenly, avoid local overheated and fuse, extension bulb filament's life.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a spacing block;
fig. 3 is a schematic perspective view of a filament winding device.
Detailed Description
The preferred embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the automatic filament winding device for the CT bulb filament comprises a metal wire unreeling mechanism 1, a metal wire guiding mechanism 2, a wire cutting device 3, a filament winding device 4 and a metal wire feeding tension control mechanism 5 which are sequentially arranged on a rack 100 from back to front; the metal wire guiding mechanism 2 comprises an annular guiding mechanism 201 and a plurality of metal wire guiding sleeves 202, the annular guiding mechanism 201 and each metal wire guiding sleeve 202 are sequentially arranged between the metal wire unreeling mechanism 1 and the wire cutting device 3 from back to front, and the metal wire guiding sleeve 202 at the forefront corresponds to the filament winding device 4 in position; the annular guiding mechanism 201 comprises a longitudinal supporting plate 2011, a plurality of wire guide wheels 2012 and a plurality of limiting pieces 2013, as shown in fig. 2, each limiting piece 2013 is provided with a strip-shaped groove 20131 and a notch 20132 communicated with the strip-shaped groove 20131, each wire guide wheel 2012 is rotatably mounted on the plate surface of the longitudinal supporting plate 2011, each wire guide wheel 2012 is sequentially arranged to form a circle, and each limiting piece 2013 is respectively arranged at the rear end of the corresponding wire guide wheel 2012; the metal wire clamp tension control mechanism 5 is arranged between the annular guide mechanism 201 and the forefront metal wire guide sleeve 202, specifically, the metal wire clamp tension control mechanism 5 is arranged between two adjacent metal wire guide sleeves 202 in front of the annular guide mechanism 201, the metal wire clamp tension control mechanism 5 comprises a driving clamping wheel 501, a driven clamping wheel 502, a clamping lifting mechanism 503, a supporting plate 504, a wire pressing rotating shaft 505, a semicircular wire pressing block 506, a torsion spring 507 and a swing arm 508, and the lower end of the semicircular wire pressing block 506 is provided with a wire pressing end 509 protruding downwards; the driving pinch wheel 501 and the pinch lifting mechanism 503 are both arranged on the frame 100, the driven pinch wheel 502 is rotatably arranged on the power output end of the pinch lifting mechanism 503, and the driven pinch wheel 502 is positioned right above the driving pinch wheel 501; the supporting plate 504 is arranged on the frame 100 and is positioned in front of the driving pinch wheel 501, the line pressing rotating shaft 505 is rotatably arranged on the frame 100, the semicircular line pressing block 506 is arranged on the line pressing rotating shaft 505 and is positioned above the supporting plate 504, the torsion spring 507 is sleeved on the line pressing rotating shaft 505, one end of the torsion spring 507 is connected with the frame 100, and the other end of the torsion spring 507 is connected with the line pressing rotating shaft 505; the swing arm 508 is connected between the power output end of the pinch lifting mechanism 503 and the wire pressing rotating shaft 505.
The definitions of the front and the rear are as follows: the first arrival is followed by the slow arrival along the conveying direction of the wire 200.
The wire unreeling mechanism 1 can adopt a common wire unreeling mechanism, generally adopts a passive unreeling mode, and generally adopts an unreeling rotating shaft.
The above-mentioned thread cutting device 3 generally includes a cutter, a cutter driving device for driving the cutter to extend or retract, and the cutter driving device may employ an air cylinder, and more preferably, the cutter driving device is a transmission mechanism, and the transmission mechanism is linked with the active pinch wheel.
The active pinch wheel 501 is generally driven by a pinch motor.
The working principle and the beneficial effects of the invention are further described in detail below with reference to fig. 1:
after the metal wire 200 is paid out by the metal wire unreeling mechanism 1, the metal wire 200 is led in from the wire wheel 2012 at the lowest part at the front side, and is sent out from the wire wheel 2012 at the lowest part at the rear side after passing through each wire wheel 2012 in circular arrangement, so that the metal wire 200 is flattened through a plurality of wire wheels 2012 in circular arrangement, dead angles of bending are avoided, the metal wire 200 is ensured to be unfolded more smoothly, and the metal wire is prevented from being pulled at a high speed by the filament winding device 4 to be broken; after the metal wire 200 is sent out from the lowest wire guide wheel 2012 at the rear side, the metal wire 200 passes through the active clamping and sending wheel 501, the semicircular wire pressing block 506 and each metal wire guide sleeve 202, and finally extends out from the foremost metal wire guide sleeve 202 to the filament winding device 4; during operation, the pinch lifting mechanism 503 drives the driven pinch wheel 502 to press the metal wire 200 on the driving pinch wheel 501, at this time, the linked swing arm 508 pushes the semicircular wire pressing block 506 to rotate a certain angle, so that the wire pressing end 509 at the lower end of the semicircular wire pressing block 506 leaves the supporting plate 504, the driven pinch wheel 502 and the driving pinch wheel 501 cooperate to clamp the metal wire 200 to convey forward, so that the forefront end of the metal wire 200 reaches the filament winding device 4, then the pinch lifting mechanism 503 drives the driven pinch wheel 502 to leave the driving pinch wheel 501 upwards, the pinch action is removed, meanwhile, the semicircular wire pressing block 506 is driven to rotate by the linked swing arm 508, the wire pressing end 509 at the lower end of the semicircular wire pressing block 506 lightly presses the metal wire 200 on the supporting plate 504 under the action of the torsion spring 507, then the filament winding device 4 clamps the forefront end of the metal wire 200 to wind the spiral bulb filament, the filament winding device 4 pulls the metal wire 200, the end of the semicircular wire pressing block 506 lightly presses the metal wire 509 on the supporting plate 504, thus ensuring that the metal wire 200 is cut off smoothly, and the tension between the semicircular wire pressing block 200 and the spiral filament winding device 3 is completed, and the spiral filament winding device is completed. The automatic filament winding device for the CT bulb tube filament is characterized in that on the basis of an original basic structure, a metal wire guide mechanism 2 is arranged to comprise an annular guide mechanism 201 and a plurality of metal wire guide sleeves 202, the annular guide mechanism 201 expands a metal wire 200 as much as possible and avoids bending, and when a filament winding device 4 performs high-speed winding traction, the metal wire 200 is ensured to have higher flatness; on this basis, add the metal fastener and send tension control mechanism 5 for after the metal wire 200 is pressing from both sides and sending in place, can withdraw the clamp and send the effect and start tension control simultaneously, make filament winding device 4 when coiling heliciform bulb filament, metal wire 200 is in the tensioning state always, thereby make the winding of heliciform bulb filament more even, improve the homogeneity that heliciform bulb filament launched, and make heliciform bulb filament in the resistance subsection in axial even, generate heat evenly, avoid local overheat and fuse, the life of extension bulb filament.
The pinch lifting mechanism 503 is a pinch cylinder; the swing arm 508 includes a swing arm shaft 5081, a first link 5082, a second link 5083, a third link 5084, and a fourth link 5085; the swing arm shaft 5081 is rotatably installed on the frame 100; the fixed end of the first connecting rod 5082 is fixedly connected with a piston rod of a clamping air supply cylinder (clamping air supply lifting mechanism 503), the fixed end of the second connecting rod 5083 is fixedly connected with a swing arm shaft 5081, the movable end of the first connecting rod 5082 is hinged with the movable end of the second connecting rod 5083, the fixed end of the third connecting rod 5084 is fixedly connected with the swing arm shaft 5081, the fixed end of the fourth connecting rod 5085 is fixedly connected with the pressing line rotating shaft 505, and the movable end of the third connecting rod 5084 is hinged with the movable end of the fourth connecting rod 5085. When the piston rod of the pinch cylinder (pinch lifting mechanism 503) extends downwards, the first connecting rod 5082 drives the second connecting rod 5083 to swing downwards, so as to drive the swing arm shaft 5081 to rotate anticlockwise, and the anticlockwise rotation of the swing arm shaft 5081 drives the third connecting rod 5084 and the fourth connecting rod 5085 to swing upwards, so as to drive the wire pressing rotating shaft 505 to rotate clockwise, and the semicircular wire pressing block 506 rotates clockwise by a certain angle, so that the wire pressing end 509 of the semicircular wire pressing block 506 is separated from the supporting plate 504; similarly, when the piston rod of the pinch cylinder (pinch lifting mechanism 503) is retracted upward, the semicircular pressing block 506 rotates counterclockwise and the pressing end 509 of the semicircular pressing block 506 presses the wire 200 against the pallet 504 under the action of the torsion spring 507.
As shown in fig. 1 and 3, the filament winding device 4 includes a workbench 401, a support 402, a winding needle 403, a needle holder 404, a winding lifting mechanism 405, a winding rotating mechanism 406, a clamping jaw 407, a winding needle positioning cylinder 408, a supporting fork 409, a supporting fork lifting mechanism 410, a first pin positioning mechanism 411, a second pin positioning mechanism 412, and a wire pressing mechanism 413; the workbench 401 is arranged on the machine frame 100, an operation hole 414 is formed in the middle of the workbench 401, the winding needle positioning cylinder 408 is arranged on the machine frame 100 below the workbench 401, and the upper end of the winding needle positioning cylinder 408 is exposed out of the operation hole 414 on the workbench 401; a fork lifting mechanism 410 is mounted on the frame 100 below the workbench 401, and a fork 409 is mounted on the power output end of the fork lifting mechanism 410 and in front of the needle positioning cylinder 408; the support 402 is mounted on the stand 100 and above the workbench 401, a sliding channel 415 along the up-down direction is formed on the support 402, the needle seat 404 is positioned in the sliding channel 415 and can move up and down along the sliding channel 415, a needle hole 416 along the up-down direction is formed on the needle seat 404, and the winding needle 403 is mounted in the needle hole 416 through a first bearing 417 and corresponds to the upper end of the winding needle positioning barrel 408; the winding rotary mechanism 406 is arranged on the needle seat 404, and the power output end of the winding rotary mechanism 406 is in transmission connection with the upper end of the winding needle 403; the clamping jaw 407 is arranged at the lower end of the needle seat 404, and the clamping jaw 407 and the winding needle 403 form a clamp; the winding lifting mechanism 405 comprises a winding lifting motor 4051, a screw 4052, a nut 4053 and a connecting block 4054; the screw 4052 is arranged on the support 402 through a second bearing 4055, and the screw 4052 is arranged in parallel with the winding needle 403; the winding lifting motor 4051 is arranged on the support 402, and the winding lifting motor 4051 is in transmission connection with the screw rod 4052; the nut 4053 is sleeved on the screw rod 4052, a strip-shaped hole is formed in the side wall of the sliding channel 415, one end of the connecting block 4054 is connected with the nut 4053, and the other end of the connecting block 4054 passes through the strip-shaped hole to be connected with the needle seat 404; the first pin positioning mechanism 411 and the second pin positioning mechanism 412 are arranged on the workbench 401 side by side and are respectively positioned at two sides of the winding needle 403; the crimping mechanism 413 includes a crimping blade 4131 and a crimping blade translating mechanism 4132, the crimping blade translating mechanism 4132 is mounted on the table 401, and the crimping blade 4131 is mounted on the power output end of the crimping blade translating mechanism 4132 and above the winding needle positioning barrel 408.
As shown in fig. 3, the first pin positioning mechanism 411 and the second pin positioning mechanism 412 each include a fork blade 4111 with a V-shaped notch and a fork blade translation mechanism 4112, the fork blade translation mechanism 4112 is mounted on the table 401, the fork blade 4111 is mounted on a power output end of the fork blade translation mechanism 4112, and the fork blade 4111 of the first pin positioning mechanism 411 and the fork blade 4111 of the second pin positioning mechanism 412 are disposed in parallel.
The wire-wound rotation mechanism 406 typically employs a wire-wound micro-motor.
The clamping jaw 407 generally comprises a clamping piece and an opening and closing driving mechanism for driving the clamping piece to open and close with the winding needle, wherein the opening and closing driving mechanism can adopt an air cylinder or a structure of matching a motor and a connecting rod mechanism.
The fork lift mechanism 410 generally employs a lift cylinder.
As shown in fig. 3, the above-mentioned fork-knife translation mechanism 4112 may employ an air cylinder; more preferably, the fork-knife translating mechanism 4112 includes a knife holder 41121, a slider 41122, a cam 41123, a cam drive motor (not shown in fig. 3) and a tension spring 41124, the knife holder 41121 is mounted on the table 401, the cam 41123 and the cam drive motor are both mounted on the knife holder 41121, the knife holder 41121 is provided with a sliding slot 41125, the slider 41122 is positioned in the sliding slot 41125, the fork 4111 is mounted on the inner end of the slider 41122, the cam 41123 is positioned at the outer end of the sliding slot 41125, the cam drive motor is in driving connection with the cam 41123, the outer end of the slider 41122 is exposed from the outer end of the sliding slot 41125 and is in contact engagement with the cam 41123, the inner end of the tension spring 41124 is connected with the slider 41122, the outer end of the tension spring 41124 is connected with the knife holder 41121, the connection position of the tension spring 41124 and the knife holder 41121 is positioned at the outer side of the cam 41123, the boss of the cam 41123 pushes the slider 41122 and the fork knife 4111 thereon to move inward to position the first/second end of the wire 200, after the cam 41123 leaves the slider 35 41122, the spring 41124 and the tension spring returns the fork-knife 1 to the outer reset position.
The wire pressing blade translation mechanism 4132 may be the same or similar to the fork blade translation mechanism 4112.
When the front part of the metal wire 200 is clamped to the winding needle 403 during winding the spiral bulb filament, the supporting fork lifting mechanism 410 drives the supporting fork 409 to lift to be exposed on the workbench 401 and hold the forefront end of the metal wire 200, so that the clamping jaw 407 can accurately clamp the front end part of the metal wire 200 on the winding needle 403; the winding lifting motor 4051 drives the screw rod 4052 to rotate, and under the limit of the strip-shaped hole, the nut 4053 drives the needle seat 404 and the winding needle 403 to descend, so that the winding needle 403 is inserted into the winding needle positioning barrel 408; then, the holding jaw 407 clamps the leading end portion of the wire 200 to the winding needle 403; the fork blade 4111 of the first pin positioning mechanism 411 extends to push the front end part of the metal wire 200 to one side, so as to form a first pin of the spiral rotary bulb filament; then, the wire pressing cutter translation mechanism 4132 drives the wire pressing cutter 4131 to extend, so that the metal wire 200 to be wound is pressed on the winding needle 403, the wound spiral bulb tube filament is more compact, and the emission of the spiral bulb tube filament is more uniform; then, the winding lifting motor 4051 drives the needle holder 404 and the winding needle 403 to gradually rise through the screw rod 4052 and the nut 4053, and simultaneously, the winding rotating mechanism 406 drives the winding needle 403 to rotate, so that the clamping jaw 407 clamps the front end part of the metal wire 200 on the winding needle 403 and rotates while rising, and a spiral bulb filament is wound on the winding needle 403; cutting is then carried out; finally, the fork blade 4111 of the second pin positioning mechanism 412 extends to push the rear end of the wire 200 to one side, forming the second pin of the spiral bulb filament. The first pin positioning mechanism 411 and the second pin positioning mechanism 412 perform angular positioning on the first pin and the second pin of the spiral bulb filament, respectively.
In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present invention are included in the protection scope of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (7)
1. An automatic filament winding device for a CT bulb tube filament comprises a metal wire unreeling mechanism, a metal wire guiding mechanism, a wire cutting device and a filament winding device which are sequentially arranged on a frame from back to front, and is characterized in that: the wire clamp tension control mechanism is also included; the metal wire guiding mechanism comprises an annular guiding mechanism and a plurality of metal wire guiding sleeves, the annular guiding mechanism and each metal wire guiding sleeve are sequentially arranged between the metal wire unreeling mechanism and the wire cutting device from back to front, and the metal wire guiding sleeve at the forefront corresponds to the filament winding device in position; the wire clamp tension-feeding control mechanism is arranged between the annular guide mechanism and the forefront wire guide sleeve, and comprises a driving clamping and feeding wheel, a driven clamping and feeding wheel, a clamping and feeding lifting mechanism, a supporting plate, a wire pressing rotating shaft, a semicircular wire pressing block, a torsion spring and a swing arm, wherein the lower end of the semicircular wire pressing block is provided with a wire pressing end protruding downwards; the annular guide mechanism comprises a longitudinal support plate, a plurality of wire guide wheels and a plurality of limiting sheets, each limiting sheet is provided with a strip-shaped groove and a notch communicated with the strip-shaped groove, each wire guide wheel is rotatably arranged on the surface of the longitudinal support plate, each wire guide wheel is sequentially arranged to form a circle, and each limiting sheet is respectively arranged at the rear end of the corresponding wire guide wheel; the driving pinch wheel and the pinch lifting mechanism are both arranged on the frame, the driven pinch wheel is rotatably arranged on the power output end of the pinch lifting mechanism, and the driven pinch wheel is positioned right above the driving pinch wheel; the support plate is arranged on the frame and in front of the driving pinch wheel, the line pressing rotating shaft is rotatably arranged on the frame, the semicircular line pressing block is arranged on the line pressing rotating shaft and above the support plate, the torsion spring is sleeved on the line pressing rotating shaft, one end of the torsion spring is connected with the frame, and the other end of the torsion spring is connected with the line pressing rotating shaft; the swing arm is connected between the power output end of the clamping lifting mechanism and the wire pressing rotating shaft; the clamping lifting mechanism is a clamping cylinder; the swing arm comprises a swing arm shaft, a first connecting rod, a second connecting rod, a third connecting rod and a fourth connecting rod; the swing arm shaft is rotatably arranged on the frame; the fixed end of the first connecting rod is fixedly connected with a piston rod of the air clamping cylinder, the fixed end of the second connecting rod is fixedly connected with the swing arm shaft, the movable end of the first connecting rod is hinged with the movable end of the second connecting rod, the fixed end of the third connecting rod is fixedly connected with the swing arm shaft, the fixed end of the fourth connecting rod is fixedly connected with the wire pressing rotating shaft, and the movable end of the third connecting rod is hinged with the movable end of the fourth connecting rod.
2. The automatic filament winding apparatus of claim 1, wherein: the filament winding device comprises a workbench, a support, a winding needle, a needle seat, a winding lifting mechanism, a winding rotating mechanism, a clamping jaw and a winding needle positioning barrel; the workbench is arranged on the frame, an operation hole is formed in the middle of the workbench, the winding needle positioning cylinder is arranged on the frame below the workbench, and the upper end of the winding needle positioning cylinder is exposed out of the operation hole on the workbench; the support is arranged on the stand and above the workbench, a sliding channel along the up-down direction is formed in the support, the needle seat is arranged in the sliding channel and can move up and down along the sliding channel, a needle hole along the up-down direction is formed in the needle seat, and the winding needle is arranged in the needle hole through a first bearing and corresponds to the upper end of the winding needle positioning barrel; the winding rotary mechanism is arranged on the needle seat, and the power output end of the winding rotary mechanism is in transmission connection with the upper end of the winding needle; the clamping jaw is arranged at the lower end of the needle seat, and the clamping jaw and the winding needle form a clamp; the winding lifting mechanism is arranged on the support, and the power output end of the winding lifting mechanism is connected with the needle seat.
3. The automatic filament winding apparatus of claim 2, wherein: the winding lifting mechanism comprises a winding lifting motor, a screw rod, a nut and a connecting block; the screw rod is arranged on the support through a second bearing, and the screw rod is arranged in parallel with the winding needle; the winding lifting motor is arranged on the support and is in transmission connection with the screw rod; the nut is sleeved on the screw rod, a strip-shaped hole is formed in the side wall of the sliding channel, one end of the connecting block is connected with the nut, and the other end of the connecting block penetrates through the strip-shaped hole to be connected with the needle seat.
4. The automatic filament winding apparatus of claim 2, wherein: the filament winding device further comprises a supporting fork and a supporting fork lifting mechanism, wherein the supporting fork lifting mechanism is arranged on the frame and is arranged below the workbench, and the supporting fork is arranged on a power output end of the supporting fork lifting mechanism.
5. The automatic filament winding apparatus of claim 2, wherein: the filament winding device further comprises a first pin positioning mechanism and a second pin positioning mechanism, wherein the first pin positioning mechanism and the second pin positioning mechanism are arranged on the workbench side by side and are respectively positioned on two sides of the winding needle.
6. The automatic filament winding apparatus of claim 5, wherein: the first pin positioning mechanism and the second pin positioning mechanism comprise a fork knife with a V-shaped notch and a fork knife translation mechanism, the fork knife translation mechanism is arranged on the workbench, the fork knife is arranged on the power output end of the fork knife translation mechanism, and the fork knife of the first pin positioning mechanism and the fork knife of the second pin positioning mechanism are arranged in parallel.
7. The automatic filament winding apparatus of claim 2, wherein: the filament winding device further comprises a wire pressing mechanism, the wire pressing mechanism comprises a wire pressing cutter and a wire pressing cutter translation mechanism, the wire pressing cutter translation mechanism is installed on the workbench, and the wire pressing cutter is installed on the power output end of the wire pressing cutter translation mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910545338.8A CN110265276B (en) | 2019-06-22 | 2019-06-22 | Automatic filament winding equipment for CT bulb tube filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910545338.8A CN110265276B (en) | 2019-06-22 | 2019-06-22 | Automatic filament winding equipment for CT bulb tube filament |
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| Publication Number | Publication Date |
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| CN110265276A CN110265276A (en) | 2019-09-20 |
| CN110265276B true CN110265276B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910545338.8A Active CN110265276B (en) | 2019-06-22 | 2019-06-22 | Automatic filament winding equipment for CT bulb tube filament |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114388344B (en) * | 2022-02-16 | 2023-07-04 | 常州超迪电器科技有限公司 | Filament shaping and assembling integrated machine for heating lamp tube |
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| US2297950A (en) * | 1940-07-24 | 1942-10-06 | Gen Electric | Filament mounting machine |
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| KR20090127596A (en) * | 2008-06-09 | 2009-12-14 | 주식회사 새한텅스텐 | Equipment manufacturing filament for electrode comprising beading part |
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| CN202765963U (en) * | 2012-06-19 | 2013-03-06 | 安徽霍山县华光节能科技有限公司 | Wire guiding mechanism for lamp filament cutting machine |
| CN103887128A (en) * | 2014-03-19 | 2014-06-25 | 李家凌 | Clamping and sealing machine for producing lamp bulbs |
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| US2297950A (en) * | 1940-07-24 | 1942-10-06 | Gen Electric | Filament mounting machine |
| US2439893A (en) * | 1945-08-01 | 1948-04-20 | Gen Electric | Filament coiling apparatus |
| KR20090127596A (en) * | 2008-06-09 | 2009-12-14 | 주식회사 새한텅스텐 | Equipment manufacturing filament for electrode comprising beading part |
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| Publication number | Publication date |
|---|---|
| CN110265276A (en) | 2019-09-20 |
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