CN211664425U - Coiling mechanism of copper bar continuous extrusion machine - Google Patents
Coiling mechanism of copper bar continuous extrusion machine Download PDFInfo
- Publication number
- CN211664425U CN211664425U CN202020005155.5U CN202020005155U CN211664425U CN 211664425 U CN211664425 U CN 211664425U CN 202020005155 U CN202020005155 U CN 202020005155U CN 211664425 U CN211664425 U CN 211664425U
- Authority
- CN
- China
- Prior art keywords
- winding
- copper bar
- extrusion
- wheel
- sliding seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 65
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 62
- 239000010949 copper Substances 0.000 title claims abstract description 62
- 238000004804 winding Methods 0.000 claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000005056 compaction Methods 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000013508 migration Methods 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Abstract
The utility model discloses a coiling mechanism of copper bar continuous extrusion machine relates to the production and processing technology field of copper bar, including extrusion portion and the rolling portion that is located on same processing line, be provided with the auxiliary part that is used for pulling the reciprocal horizontal migration of copper bar between extrusion portion and the rolling portion. The extrusion forming part comprises a machine base, an extrusion wheel and a compaction wheel are arranged in the machine base in a rotating mode, an extrusion cavity is formed in one side of the extrusion wheel, and an extrusion die is arranged in the extrusion cavity. The winding part comprises a winding vertical frame, a winding wheel is rotatably arranged on the winding vertical frame, and the winding wheel is connected with a winding motor in a transmission manner. The auxiliary part comprises an auxiliary frame, the upper end face of the auxiliary frame slides and is provided with a sliding seat, the sliding seat is in transmission connection with a horizontal driving mechanism, and a pair of traction rollers is arranged on the sliding seat in a rotating mode. The utility model discloses a carry over pinch rolls drives copper bar and convolutes horizontal migration on one side, has realized that the copper bar is even to be rolled up into to coil. Meanwhile, the device can be rolled and unreeled at the same time, and the practicability of the device is improved.
Description
Technical Field
The utility model relates to a production and processing technical field of copper bar especially relates to a coiling mechanism of copper bar continuous extrusion machine.
Background
The copper bar is suitable for electrical engineering of high and low voltage electrical appliances, switch contacts, power distribution equipment, bus ducts and the like, and is also widely used for super-large current electrolytic smelting engineering of metal smelting, electrochemical plating, chemical caustic soda and the like. In the production and processing process of the copper bar, the continuous extrusion technology is applied more, the copper bar is output after being extruded and formed by a continuous extruder, and the copper bar is rolled and transferred on a rolling device.
For example, Chinese patent with patent publication No. CN208810828U proposes a high-efficiency copper bar continuous extruder, which comprises a machine base, wherein the machine base also comprises an extrusion box, a cooling box and a roller; the machine base is provided with a pay-off reel and a deviation correction roller, the pay-off reel is provided with a rotating rod and a first connecting table, the deviation correction roller is provided with a connecting rod, the extrusion box is provided with a controller, a wire inlet pipe, a wire outlet pipe and a first motor, and the controller is provided with a fixing rod; be equipped with infrared emitter, infrared receiver and backup pad on the cooler bin, be equipped with first connecting block on the infrared emitter, the last second connecting block that is equipped with of infrared receiver, be equipped with roller, bracing piece and second motor on the roller, be equipped with the second on the bracing piece and connect the platform, be equipped with the belt on the second motor.
The utility model discloses a through the cooler bin that adds, can prevent the copper bar line oxidation that extrudes, the roller of adding, the copper bar rolling can be realized to cooperation second motor, improves the efficiency of processing production. But the utility model discloses a following problem exists, because the direct winding rolling of copper bar after the extrusion is on the roller, this can lead to the copper bar winding inhomogeneous, and the copper bar twines on the roller in disorder, and the copper bar is easily piled up and is made the copper bar roll up thickness and differ in a department, is unfavorable for the transfer and the transportation in later stage to the utilization ratio of roller is lower, and winding copper bar is less, has leaded to productivity ratio lower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a coiling mechanism of copper bar continuous extrusion machine has realized that the copper bar coils into the dish automatically evenly, has improved the utilization ratio of rolling wheel, and the transfer in the later stage of being convenient for and unreel. Meanwhile, the winding and unwinding can be realized, the practicability of the equipment is improved, and the production efficiency is improved.
The utility model discloses a can realize through following technical scheme:
the utility model provides a coiling mechanism of copper bar continuous extrusion machine, is including extrusion portion and the portion of rolling up that is located same processing line, extrusion portion with it is used for pulling the reciprocal horizontal migration's of copper bar auxiliary portion to be provided with between the portion of rolling up. The extrusion forming part comprises a machine base, an extrusion wheel and a compaction wheel are rotationally arranged in the machine base, an extrusion cavity is formed in one side of the extrusion wheel, and an extrusion die is arranged in the extrusion cavity; the winding part comprises a winding vertical frame, a winding wheel is rotatably arranged on the winding vertical frame, and the winding wheel is connected with a winding motor in a transmission manner; the auxiliary part comprises an auxiliary frame, the upper end face of the auxiliary frame slides and is provided with a slide seat, the slide seat is connected with a horizontal driving mechanism in a transmission mode, and a pair of traction rollers used for clamping and feeding are arranged on the slide seat in a rotating mode.
By adopting the technical scheme, the blank enters the extrusion cavity and is extruded and formed into the copper bar by the extrusion die, the copper bar is wound on the winding wheel after passing through a traction space formed between the two traction rollers, and the winding speed of the winding wheel is controlled by the winding motor so as to adapt to the extrusion and forming speed of the continuous extrusion machine. The horizontal driving mechanism controls the traction roller to do horizontal reciprocating motion, so that the copper bar moves back and forth while being wound on the winding wheel, and the copper bar is uniformly wound on the winding wheel into a disc, thereby being convenient for subsequent transfer or unwinding. Meanwhile, the utilization rate of the winding wheel is improved, and the production efficiency is improved.
Further setting the following steps: the horizontal driving mechanism comprises a servo motor fixedly arranged on the auxiliary rack, a screw rod penetrates through the slide seat thread, and the output end of the servo motor is in transmission connection with the screw rod.
Through adopting above-mentioned technical scheme, servo motor drive lead screw rotates and is horizontal reciprocating motion in order to drive the carry over pinch rolls for copper bar is on the rolling wheel coiling while round trip movement, and the copper bar can twine on the rolling wheel uniformly.
Further setting the following steps: the slide has been seted up to the up end of board, the bottom of slide be provided with a plurality ofly with slide roll fit's gyro wheel.
Through adopting above-mentioned technical scheme, the setting up of gyro wheel makes the sliding friction between slide and the board become rolling friction, the frictional force that has significantly reduced to reduce wearing and tearing, improved life.
Further setting the following steps: the sliding seat is characterized in that a sliding groove is formed in the upper end face of the sliding seat, two bearing seats in one-to-one correspondence with the traction roller are arranged in the sliding groove in a sliding mode, a double-threaded screw rod penetrates through the bearing seats in a threaded mode, and an adjusting hand wheel is fixedly arranged at one end of the double-threaded screw rod.
Through adopting above-mentioned technical scheme, adjusting hand wheel is convenient for operating personnel to control the rotation of double-end screw, and then the distance between the two bearing frames of control to the distance adjustment of carry over pinch rolls has been realized, in order to adapt to not unidimensional copper bar.
Further setting the following steps: the upper end face of the sliding seat is fixedly provided with two support plates oppositely, an error correction roller is rotatably arranged between the two support plates, and the axis direction of the error correction roller is orthogonal to the axis direction of the traction roller.
Through adopting above-mentioned technical scheme, because at the removal in-process, the off tracking that skids of copper bar probably under the effect of tensioning force, the roller of rectifying has restricted the skidding of copper bar vertical direction effectively, has improved the stability of rolling.
Further setting the following steps: arc-shaped clamping openings are formed in the peripheral sides of the traction rollers, and the axis directions of the two traction rollers are orthogonal to the axis direction of the winding wheel.
Through adopting above-mentioned technical scheme, the arc centre gripping mouth has restricted the level of copper bar effectively and has rocked, has improved the stability and the homogeneity of copper bar winding rolling.
Further setting the following steps: an annular groove is formed in the middle of the winding wheel, and a separation arm is embedded in the annular groove.
Through adopting above-mentioned technical scheme, separate the winding district that the arm formed centre gripping arm and wind-up roll and be divided into two, when one of them winding district was rolled on one side, another winding district can unreel on one side, has improved coiling mechanism's practicality.
Further setting the following steps: and the partition arm is provided with a fastening bolt.
Through adopting above-mentioned technical scheme, fastening bolt has improved the steadiness of separating the arm, prevents to separate the arm pine and take off at the in-process of rolling and unreeling.
To sum up, the utility model discloses a beneficial technological effect does:
(1) the carry over pinch rolls drives the copper bar and is horizontal reciprocating motion for the copper bar is convoluteed on one side and is moved back and forth on the rolling wheel, and the copper bar can be evenly twined on the rolling wheel, and the transfer in the later stage of being convenient for with unreel. Meanwhile, the utilization rate of the winding wheel is improved, and the production efficiency is improved.
(2) The partition arm divides the winding area formed by the clamping arm and the winding roller into two parts, so that one winding area can be wound while the other winding area can be unwound, and the practicability of the winding device is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partial schematic structural view (auxiliary unit) of the present invention;
fig. 3 is a partial schematic structural view of the present invention and a partial sectional view (extrusion molding portion) thereof.
Reference numerals: 100. an extrusion molding part; 101. a machine base; 102. an extrusion wheel; 103. compacting wheels; 104. extruding the cavity; 105. extruding the die; 106. molding the motor; 200. a winding part; 201. winding a vertical frame; 202. a winding wheel; 203. a winding motor; 204. a clamp arm; 205. an annular groove; 206. a partition arm; 207. fastening a bolt; 300. an auxiliary part; 301. an auxiliary frame; 302. a slide base; 303. a traction roller; 304. a servo motor; 305. a screw rod; 306. a slideway; 307. a roller; 308. a deviation rectifying roller; 309. a chute; 310. a bearing seat; 311. a double-ended screw; 312. adjusting a hand wheel; 313. and (4) a support plate.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 and 3, for the utility model discloses a coiling mechanism of copper bar continuous extrusion machine, including extrusion portion 100 and the portion of rolling up 200 that is located same processing line, be provided with between extrusion portion 100 and the portion of rolling up 200 and be used for pulling the reciprocal horizontal migration's of copper bar auxiliary portion 300. The extrusion forming part 100 comprises a base 101, an extrusion wheel 102 and a compaction wheel 103 which are in mutual compression fit are rotationally arranged in the base 101, the extrusion wheel 102 is connected with a forming motor 106 through a coupler in a transmission mode, an extrusion cavity 104 is formed in one side of the extrusion wheel 102, and an extrusion die 105 is arranged in the extrusion cavity 104. The forming motor 106 drives the extrusion wheel 102 to rotate, the blank is sent into the extrusion cavity 104 by using friction force, and the blank is extruded and formed by the extrusion die 105 and then output into a copper bar.
Referring to fig. 1 and 2, the auxiliary portion 300 includes an auxiliary frame 301, the auxiliary frame 301 is n-shaped, a slide 306 is disposed on an upper end surface of the auxiliary frame 301 along a length direction thereof, a slide base 302 is slidably disposed in the slide 306, and a plurality of rollers 307 in rolling fit with the slide 306 are disposed at a bottom of the slide base 302. A screw rod 305 is threaded through the sliding base 302 along the horizontal direction, one end of the screw rod 305 is connected with a servo motor 304 through a coupling in a transmission manner, and the servo motor 304 is fixed on one side of the auxiliary frame 301. The spout 309 has been seted up along its length direction to the up end of slide 302, and the internal slip of spout 309 is provided with two bearing frames 310, rotates on the bearing frame 310 and is provided with carry over pinch rolls 303, and the level of arc centre gripping mouth in order to restrict the copper bar effectively is seted up to the week side of carry over pinch rolls 303 and is rocked, has improved the stability and the homogeneity of copper bar winding rolling. Two threaded screws 311 are threaded through the two bearing blocks 310 at the same time, and an adjusting handwheel 312 is fixedly arranged at one end of each threaded screw 311. Two supporting plates 313 are oppositely arranged on one side of the sliding groove 309 on the upper end face of the sliding base 302, two deviation rectifying rollers 308 are rotatably arranged between the two supporting plates 313 along the vertical direction, the axial direction of the deviation rectifying rollers 308 is orthogonal to the axial direction of the traction roller 303, and a deviation rectifying space formed between the two deviation rectifying rollers 308 well limits the sliding of the copper bar in the vertical direction, so that the rolling stability is improved.
Referring to fig. 1, the winding unit 200 includes a winding stand 201, and the winding stand 201 is disposed in parallel with the sub-frame 301. The winding stand 201 is provided with a winding wheel 202 through bearing rotation, the winding wheel 202 is connected with a winding motor 203 through a coupler in a transmission manner, and the winding motor 203 and the forming motor 106 are speed reducing motors. The two ends of the winding wheel 202 are integrally and fixedly provided with clamping arms 204, the middle part of the winding wheel 202 is provided with an annular groove 205 along the radial direction, a separation arm 206 is embedded on the annular groove 205, and the peripheral side of the separation arm 206 is provided with a fastening bolt 207 along the radial direction. The partition arm 206 divides the winding area formed by the clamping arm 204 and the winding roller into two parts, one winding area is wound, the other winding area can be simultaneously unwound, so that the next process (such as hydraulic drawing, sizing shearing and other processes) is connected, the time for transferring and transporting is saved, and the production efficiency is improved.
The utility model discloses a theory of operation and beneficial effect do:
the blank enters the extrusion cavity 104 and is extruded and formed into a copper bar by the extrusion die 105, the copper bar is wound on the winding wheel 202 after passing through a traction space formed between the two traction rollers 303, the winding motor 203 controls the winding wheel 202 to rotate to actively wind the copper bar, and the winding speed is controlled to adapt to the extrusion and forming speed of the continuous extruder. The servo motor 304 controls the traction roller 303 to do horizontal reciprocating motion by controlling the forward and reverse rotation of the screw rod 305, so that the copper bar moves back and forth while being wound on the winding wheel 202, and the copper bar is uniformly wound on the winding wheel 202 to form a coil.
The utility model discloses an automatic dish of rolling into of copper bar uniformly has improved the utilization ratio of rolling wheel 202, the transfer in the later stage of being convenient for and unreel. Meanwhile, the winding areas are divided into two by the separating arm 206, one winding area can be wound and the other winding area can be unwound, so that the practicability of the winding device is improved, and the production efficiency is improved.
The above, only do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a coiling mechanism of copper bar continuous extrusion machine which characterized in that: the copper bar winding machine comprises an extrusion forming part (100) and a winding part (200) which are positioned on the same processing line, wherein an auxiliary part (300) for drawing a copper bar to reciprocate horizontally is arranged between the extrusion forming part (100) and the winding part (200);
the extrusion forming part (100) comprises a base (101), an extrusion wheel (102) and a compaction wheel (103) are rotationally arranged in the base (101), an extrusion cavity (104) is formed in one side of the extrusion wheel (102), and an extrusion die (105) is arranged in the extrusion cavity (104);
the winding part (200) comprises a winding vertical frame (201), a winding wheel (202) is rotatably arranged on the winding vertical frame (201), and the winding wheel (202) is in transmission connection with a winding motor (203);
the auxiliary part (300) comprises an auxiliary frame (301), a sliding seat (302) is arranged on the upper end face of the auxiliary frame (301) in a sliding mode, a horizontal driving mechanism is connected to the sliding seat (302) in a transmission mode, and a pair of traction rollers (303) used for clamping and feeding are arranged on the sliding seat (302) in a rotating mode.
2. The winding device of the copper bar continuous extrusion machine as claimed in claim 1, wherein: the horizontal driving mechanism comprises a servo motor (304) fixedly arranged on the auxiliary rack (301), a screw rod (305) is arranged in the sliding seat (302) in a threaded penetrating mode, and the output end of the servo motor (304) is in transmission connection with the screw rod (305).
3. The winding device of the copper bar continuous extrusion machine as claimed in claim 2, wherein: slide (306) have been seted up to the up end of auxiliary frame (301), the bottom of slide (302) is provided with a plurality ofly with slide (306) roll complex gyro wheel (307).
4. The winding device of the copper bar continuous extrusion machine as claimed in claim 3, wherein: two support plates (313) are fixedly arranged on the upper end face of the sliding seat (302) in an opposite mode, a deviation rectifying roller (308) is rotatably arranged between the two support plates (313), and the axial direction of the deviation rectifying roller (308) is orthogonal to the axial direction of the traction roller (303).
5. The winding device of the copper bar continuous extrusion machine as claimed in claim 4, wherein: the upper end face of the sliding seat (302) is provided with a sliding groove (309), the sliding groove (309) is internally provided with two bearing seats (310) in sliding correspondence with the traction roller (303) one by one, two double-threaded screws (311) penetrate through the bearing seats (310) simultaneously in a threaded manner, and one end of each double-threaded screw (311) is fixedly provided with an adjusting hand wheel (312).
6. The winding device of the copper bar continuous extrusion machine as claimed in claim 1, wherein: arc-shaped clamping openings are formed in the peripheral sides of the traction rollers (303), and the axial directions of the two traction rollers (303) are orthogonal to the axial direction of the winding wheel (202).
7. The winding device of the copper bar continuous extrusion machine as claimed in claim 1, wherein: an annular groove (205) is formed in the middle of the winding wheel (202), and a separation arm (206) is embedded in the annular groove (205).
8. The winding device of the copper bar continuous extrusion machine as claimed in claim 7, wherein: the partition arm (206) is provided with a fastening bolt (207).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020005155.5U CN211664425U (en) | 2020-01-02 | 2020-01-02 | Coiling mechanism of copper bar continuous extrusion machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020005155.5U CN211664425U (en) | 2020-01-02 | 2020-01-02 | Coiling mechanism of copper bar continuous extrusion machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211664425U true CN211664425U (en) | 2020-10-13 |
Family
ID=72737841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020005155.5U Expired - Fee Related CN211664425U (en) | 2020-01-02 | 2020-01-02 | Coiling mechanism of copper bar continuous extrusion machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211664425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722917A (en) * | 2020-12-25 | 2021-04-30 | 上海亚爵电工成套设备制造有限公司 | Automatic tracking unwinding device |
-
2020
- 2020-01-02 CN CN202020005155.5U patent/CN211664425U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112722917A (en) * | 2020-12-25 | 2021-04-30 | 上海亚爵电工成套设备制造有限公司 | Automatic tracking unwinding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211664425U (en) | Coiling mechanism of copper bar continuous extrusion machine | |
| CN212608719U (en) | Full-automatic slitter edge coiling mechanism | |
| CN212018971U (en) | Straightening device of continuous extruder | |
| CN112872805A (en) | High-efficient automatic all-in-one of cutting off of drawing | |
| CN208231269U (en) | Large-caliber thin-walled aluminum sleeve rotary press modelling process equipment | |
| CN110391144A (en) | A kind of lead frame production line | |
| CN216403451U (en) | Deviation correcting device for winding and unwinding machine | |
| CN216105335U (en) | Full-automatic intelligent winding machine that work efficiency is high | |
| CN211034551U (en) | Saw blade back-rolling device | |
| CN114014093A (en) | Double-clamping-arm winding machine | |
| CN219132564U (en) | Cutting machine | |
| CN210848541U (en) | Flat cutting device that opens of production fire door and window | |
| CN211161267U (en) | Pickling line slitter edge coiling apparatus | |
| CN216474155U (en) | Cloth guillootine convenient to pay-off | |
| CN218778457U (en) | Finished product rolling equipment is used in cloth production and processing | |
| CN213856836U (en) | Steel wool fiber forming, winding and unwinding processing device | |
| CN213079581U (en) | Metal 3D prints silk material take-up device | |
| CN218491191U (en) | Cable winding and unwinding equipment for flat cable | |
| CN212171118U (en) | Vertical injection molding machine feeding device for power supply wire harness | |
| CN217229726U (en) | Unreeling machine for hose making machine | |
| CN216711208U (en) | Double-clamping-arm winding machine | |
| CN220787689U (en) | Photovoltaic cable processing automatic winding device | |
| CN220115899U (en) | Automatic wire feeding machine | |
| CN216711180U (en) | Synchronous unwinding device of spring production line steel wire | |
| CN210438187U (en) | Novel automatic numerical control winding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201013 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |