CN216582387U - High-speed heavy-load chain scraper conveyor - Google Patents
High-speed heavy-load chain scraper conveyor Download PDFInfo
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- CN216582387U CN216582387U CN202122852002.1U CN202122852002U CN216582387U CN 216582387 U CN216582387 U CN 216582387U CN 202122852002 U CN202122852002 U CN 202122852002U CN 216582387 U CN216582387 U CN 216582387U
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Abstract
A high-speed heavy-load chain scraper conveyor comprises a headstock portion, a middle frame portion, a V-shaped conveying chain, a tailstock portion and a transition device. The head frame part comprises a head frame, an arc guide rail block, a head upper guide rail, a driving part, a head cover plate and a head lower arc guide rail; the middle frame part comprises an integrally bent main frame, a connecting plate, a rectangular pipe, an upper guide rail and a lower guide rail; the V-shaped conveying chain comprises a supporting wheel, an outer chain plate, an inner chain plate, a V-shaped panel, a sleeve, a pin shaft and the like; the tail frame part comprises a tail frame, a tensioning device, an arc guide rail block, a tail upper guide rail, a tail cover plate and a tail lower arc guide rail; the transition device comprises a mounting base, a paper passing plate, a mandrel, a sliding bearing and a rubber coating roller. The utility model has simple structure, strong bending resistance and low production cost, and is a high-speed heavy-load chain plate conveyor suitable for batch production.
Description
Technical Field
The utility model belongs to the technical field of paper-making conveying and packaging equipment, and relates to a high-speed heavy-load chain plate conveyor.
Background
In the technical field of paper-making conveying and packaging equipment, a chain plate conveyor is used for connecting each station in a conveying and packaging system of a paper-making workshop completion workshop section, a finished paper roll warehouse, an intermediate paper roll warehouse and a paper product processing factory and is used as a main conveying device in a large quantity. The chain plate conveyor mainly comprises a head frame part, a middle frame part, a tail frame part, a V-shaped conveying chain and the like. At present, most frames of chain conveyors at home and abroad adopt a tailor-welding structure of sectional materials, steel plate bending pieces and steel plates, the quantity and the variety of parts are various, the workload of blanking and welding processing is large, the manufacturing cost of equipment is overhigh, and the requirement of the market on the chain conveyor with high cost performance cannot be met.
With the rapid development of the paper making industry, paper mills often put higher demands on the transportation and packaging of paper products, such as heavier and heavier paper rolls, larger and larger paper roll diameters, higher and higher transportation speeds, and the like, in order to reduce the production cost, improve the working efficiency and seize the market share. Therefore, the problem to be solved in the field is to design a conveying device which has the advantages of large bearing capacity, strong bending resistance, high cost performance, simple process and suitability for mass production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide the high-speed heavy-load chain plate conveyor which has the advantages of simple structure, strong bending resistance, simple process and lower production cost and is more suitable for batch production.
The technical scheme of the utility model is as follows:
a high-speed heavy-load chain scraper conveyor comprises a headstock portion, a middle frame portion, a V-shaped conveying chain, a tailstock portion and a transition device. The headstock part comprises a head rack, an arc guide rail block, an upper head guide rail, a driving part, a head cover plate and a lower head arc guide rail, wherein the arc guide rail block is arranged at the left upper part of the inner side of the head rack, the end part of the arc guide rail block is attached to the upper head guide rail, the upper surface of the arc guide rail block is flush with the upper surface of the upper head guide rail, the two ends of the driving part are arranged in bearing seat holes in the head rack, the head cover plate is arranged on the upper surfaces of the left side plate and the right side plate of the head rack, and the lower head arc guide rail is arranged at the working section of a return chain and is positioned at the right lower part of the inner side of the head rack; the head frame comprises a left head side plate, a right head side plate, angle steel, a rectangular steel pipe and a bearing seat plate, wherein the angle steel is arranged at the bottoms of the left side plate and the right side plate, the rectangular pipe is arranged between the left side plate and the right side plate, and the bearing seat plate is positioned in the middle of the outer side surfaces of the two side plates; the left head side plate and the right head side plate are completely the same in shape, a rectangular steel plate can be cut along a curve during blanking, and a bearing seat fixing hole and an arc guide rail fixing hole are integrally machined after the two parts are combined; the working section of the arc guide rail block consists of two sections of eccentric arcs, the radius of the upper arc is smaller than that of the lower arc, and a side baffle plate for preventing the V-shaped conveying chain from deviating is arranged on one side of the arc guide rail block; the driving part comprises a bearing with a seat, a spacer bush, a chain wheel, a driving shaft and a speed reducer, and is sequentially arranged on the driving shaft, and the tooth-shaped part meshed with the chain wheel is a involute curve convenient for meshing; the head lower arc guide rail is eccentrically installed, the minimum distance between the head lower arc guide rail and the addendum circle of the chain wheel in the driving part is convenient for installing the V-shaped conveying chain, and the numerical value of the V-shaped conveying chain is 10-20 mm larger than the outer diameter of the supporting wheel in the V-shaped conveying chain. All the components forming the head frame are fixedly connected through welding.
The middle frame part comprises a bending main frame, a connecting plate, rectangular pipes, an upper guide rail and a lower guide rail, wherein the bending main frame is of an integral bending structure, the connecting plate is welded at the end part of the bending main frame, the rectangular pipes are uniformly distributed along the bending main frame, the upper guide rail is arranged on the upper surface of the rectangular pipes in the bending main frame, and the lower guide rail is arranged on the left side and the right side of the bottom of the bending main frame.
The V-shaped conveying chain comprises supporting wheels, an outer chain plate, an inner chain plate, a V-shaped panel, a sleeve, a pin shaft and the like, wherein the V-shaped panel is arranged at the top of the outer chain plate and the top of the inner chain plate, the inner chain plate and the outer chain plate are connected in series through the pin shaft, the sleeve and the like, and the supporting wheels are arranged on the outer side of the outer chain plate.
The tail frame part comprises a tail frame, a tensioning device, an arc guide rail block, a tail upper guide rail, a tail cover plate and a tail lower arc guide rail, wherein the arc guide rail block is arranged at the right upper part of the inner side of the tail frame, the working surface of the arc guide rail block is tangent to the tail upper guide rail, two ends of the tensioning device are respectively arranged at the outer side of the tail frame, the tail cover plate is arranged on the upper surfaces of the left side plate and the right side plate of the tail frame, and the tail lower arc guide rail is arranged at the working section of the return chain and is positioned at the left lower part of the inner side of the tail frame; the tail machine frame comprises a left tail side plate, a right tail side plate, angle steel, a rectangular steel pipe and a tensioning slide mounting plate, wherein the angle steel is arranged at the bottoms of the left tail side plate and the right tail side plate; the shapes of the left tail side plate and the right tail side plate are completely the same as those of the left head side plate and the right head side plate.
The transition device comprises a mounting base, a paper passing plate, a mandrel, a sliding bearing and a rubber coating roller; the rubber coating roller comprises two rollers or a single roller; the middle part of the rubber-coating roller is V-shaped, the angle is 170-175 degrees, the surface of the roller is coated with wear-resistant soft rubber, and two ends of the roller are provided with self-lubricating sliding bearings; the outer side of the rubber coating roller is also provided with a paper passing plate.
The cross sections of the head upper guide rail and the tail upper guide rail are completely the same and can be formed by integral cold drawing, and in addition, avoidance grooves are arranged near the joint of the head upper guide rail and the tail upper guide rail and the arc guide rail block.
The cross section shapes of the lower arc guide rail at the head part and the lower arc guide rail at the tail part are completely the same, the radiuses of the two lower arc guide rails are the same, and a side baffle plate for preventing the V-shaped conveying chain from deviating is arranged on one side of each lower arc guide rail.
Compared with the prior art, the utility model has the following progressive effects: the processing performance and the service performance of the equipment are greatly improved, particularly, the processing technology is simpler, the manufacturing period is greatly shortened, the production cost can be saved by about 20 percent, and the equipment is suitable for batch production; secondly, through optimizing equipment structure, especially the innovative design of core spare part, make equipment operation process more steady, conveying capacity improves greatly, in addition, because the use of novel transition device, the broken paper that causes the scroll in the greatly reduced conveying process reduces the unnecessary waste of paper.
Drawings
Fig. 1 is a schematic structural view of a high-speed heavy-load chain scraper conveyor.
In the figure: 1-a headstock part, 2-a middle frame part, a 3-V type conveying chain, 4-a tailstock part and 5-a transition device.
Fig. 2 is a schematic view of the structure of the 1-headgear portion.
In the figure: 201-head frame, 202-arc guide block, 203-head upper guide rail, 204-driving component, 205-head cover plate, 206-head lower arc guide rail.
Fig. 3 is a schematic view of a 201-head frame.
In the figure: 301-left head side plate, 302-right head side plate, 303-angle steel, 304-rectangular pipe, 305-bearing seat plate.
FIG. 4 is a side panel cut-out view.
FIG. 5 is a schematic diagram of a 202-arc guide rail block structure.
Fig. 6 is a schematic view of the 204-drive components.
In the figure: 401-bearing with seat, 402-spacer, 403-chain wheel, 404-driving shaft 405-speed reducer.
Fig. 7 is a schematic view of the mounting positions of the 403-sprocket and 206-head circular arc guide rails.
Fig. 8 is a schematic view of the structure of the 2-middle shelf portion.
In the figure: 501-integral bending main frame, 502-connecting plate, 503-rectangular tube, 504-upper guide rail, 505-lower guide rail.
FIG. 9 is a schematic view of a 3-V shaped conveyor chain structure.
In the figure: 601-supporting wheel, 602-outer chain plate, 603-inner chain plate, 604-V-shaped panel, 605-sleeve and 606-pin shaft.
FIG. 10 is a schematic view of the structure of the 4-tailstock part.
In the figure: 701-tail frame, 702-tensioning device, 202-arc guide rail block, 703-tail upper guide rail, 704-tail cover plate and 705-tail lower arc guide rail.
Fig. 11 is a 701-tail gantry schematic.
In the figure: 801-left tail side plate, 802-right tail side plate, 803-angle steel, 804-rectangular steel pipe and 805-tensioning sliding seat mounting plate.
Fig. 12 is a schematic view of a 5-transition apparatus.
In the figure: 901-mounting base, 902-cardboard, 903-mandrel, 904-slide bearing, 905-roller.
Fig. 13 is a cross-sectional view of 203-head top rail and 504-tail top rail.
Figure 14 is a cross-sectional schematic view of 206-head lower arc guide and 506-tail lower arc guide.
Detailed Description
The following provides a further description of the present invention with reference to the drawings and examples.
As shown in figure 1, the high-speed heavy-duty chain scraper conveyor comprises a 1-head frame part, a 2-middle frame part, a 3-V-shaped conveying chain, a 4-tail frame part, a 5-transition device and the like.
As shown in fig. 2, the 1-head frame part comprises 201-head frame, 202-arc guide block, 203-head upper guide rail, 204-driving component, 205-head cover plate and 206-head lower arc guide rail. The 202-arc guide rail block is arranged at the left upper part of the inner side of the 201-head rack, the end part of the 202-arc guide rail block is attached to the 203-head upper guide rail, the upper surface of the 202-arc guide rail block is flush with the upper surface of the 203-head upper guide rail, the two ends of the 204-driving part are arranged in bearing seat holes in the 201-head rack, the 205-head cover plate is arranged on the upper surfaces of the left side plate and the right side plate of the 201-head rack, and the 206-head lower arc guide rail block is arranged at the working section of the return chain and is positioned at the right lower part of the inner side of the 201-head rack.
As shown in figure 3, the 201-head frame comprises a 301-left head side plate, a 302-right head side plate, 303-angle steel, a 304-rectangular pipe, a 305-bearing seat plate and the like, wherein the 303-angle steel is arranged at the bottom of the 301-left head side plate and the 302-right head side plate, the 304-rectangular pipe is arranged between the 301-left head side plate and the 302-right head side plate, the 305-bearing seat plate is positioned at the middle position of the outer side surfaces of the 301-left head side plate and the 302-right head side plate, and all the components are connected through welding.
As shown in FIG. 4, the shapes of the 301-left head side plate and the 302-right head side plate are completely the same, a rectangular steel plate can be cut along a curve during blanking, and after the two parts are combined, a bearing seat plate fixing hole and a 206-head arc guide rail fixing hole are integrally machined 305.
As shown in fig. 5, the main working section of the 202-arc guide rail block is composed of two eccentric arcs, and the radius of the upper arc is smaller than that of the lower arc, so that the structure can avoid the paper breakage phenomenon of the end face of the paper roll caused by the polygonal effect of the chain; secondly, a side baffle plate for preventing the V-shaped conveying chain plate from deviating is arranged on one side of the guide rail block, and the baffle plate can effectively prevent the 3-V-shaped conveying chain from deviating in the running process; in addition, the hardness of the working surface of the guide rail block reaches 45 HRC-50 HRC, and the hardness requirement can effectively reduce the abrasion of the guide rail block.
As shown in figure 6, the 204-driving part comprises a 401-block bearing, a 402-spacer bush, a 403-chain wheel, a 404-driving shaft, a 405-speed reducer and the like, all parts are sequentially arranged on the 404-driving shaft, the tooth-shaped part of the 403-chain wheel meshed with the 3-V-shaped conveying chain is provided with an involute curve for facilitating meshing, and the design can ensure the smoothness of the meshing process and meet the economical efficiency of the processing of the chain wheel.
As shown in figure 7, 206-head lower arc guide rail is eccentrically installed, after 204-driving part is installed, the minimum distance between the 403-sprocket addendum circle on the 204-driving part and the 206-head lower arc guide rail is about 15mm larger than the outer diameter of 601-supporting wheel in the 3-V-shaped conveying chain plate, the arrangement is convenient for the installation of the 3-V-shaped conveying chain plate on the basis of not dismounting a speed reducer, and the construction period of a project site is greatly shortened.
As shown in FIG. 8, the 2-middle frame part comprises 501-integrally bent main frames, 502-connecting plates, 503-rectangular tubes, 504-upper guide rails, 505-lower guide rails and the like which are welded, wherein the 501-integrally bent main frames are of an integrally bent structure, the ends of the 501-integrally bent main frames are welded with the 502-connecting plates, the 503-rectangular tubes are uniformly distributed along the 501-integrally bent main frames, the 504-upper guide rails are arranged on the upper surfaces of the 503-rectangular tubes in the 501-integrally bent main frames, and the 505-lower guide rails are arranged on the left side and the right side of the bottoms of the 501-integrally bent main frames.
As shown in FIG. 9, the 3-V type conveying chain comprises 601-supporting wheels, 602-outer chain plates, 603-inner chain plates, 604-V-shaped panels, 605-sleeves, 606-pins and the like, wherein the 604-V-shaped panels are arranged at the tops of the 602-outer chain plates and the 603-inner chain plates, the 603-inner chain plates and the 602-outer chain plates are connected in series through the 606-pins, 605-sleeves and the like, and 601-supporting wheels are arranged at the outer sides of the 602-outer chain plates.
As shown in fig. 10, the 4-tail frame part comprises a 701-tail frame, 702-tensioning devices, 202-arc guide rail blocks, 703-tail upper guide rails, 704-tail cover plates, 705-tail lower arc guide rails and the like, wherein the 202-arc guide rail blocks are arranged at the right upper part of the inner side of the 701-tail frame, the working surface of the 202-arc guide rail blocks is tangent to the 703-tail upper guide rails, two ends of the 702-tensioning devices are respectively arranged at the outer sides of the 701-tail frame, 704-tail cover plates are arranged on the upper surfaces of the left side plate and the right side plate of the 701-tail frame, and the 705-tail lower arc guide rails are arranged at the working section of the return chain and are positioned at the left lower part of the inner side of the 701-tail frame.
As shown in fig. 11, the 701-tail frame comprises a 801-left tail side plate, an 802-right tail side plate, 803-angle steel, 804-rectangular pipes, 805-tensioning slide mounting plates and the like, wherein the 803-angle steel is arranged at the bottom of the 801-left tail side plate and the 802-right tail side plate, the 804-rectangular pipes are arranged between the 801-left tail side plate and the 802-right tail side plate, the 805-tensioning slide mounting plates are positioned at the outer sides of the 801-left tail side plate and the 802-right tail side plate, and all the components are connected by welding. The shapes of the 801-left tail side plate and the 802-right tail side plate are completely the same as those of the 301-left head side plate and the 302-right head side plate. This structural design has not only avoided a large amount of weldment work volume from the source, greatly reduced need bend and the type and the quantity of the spare part of cutting, the mechanical properties of whole frame has all obtained promotion by a relatively large margin moreover.
As shown in fig. 12, the 5-transition device comprises 901-mounting base, 902-cardboard, 903-mandrel, 904-slide bearing and 905-encapsulated roll; the 905-rubber coating roller comprises two types of rollers or a single roller so as to meet the use conditions under different scenes, the middle part of the 905-roller in the device is V-shaped, the angle is 170-175 degrees, and the surface of the roller is coated with wear-resistant soft rubber so as to ensure that paper rolls can be stably transported on a conveyor and reduce the damage of the paper rolls in a scale shape on the circumference caused by a transition device to the maximum extent. And in addition, the outer side of the 905-roller is also provided with a 902-paper passing plate to compensate the opening phenomenon of the 5-V-shaped conveying chain caused by the multilateral effect, reduce the rubbing damage of the end face of the paper roll in the conveying process by tens of layers and greatly improve the conveying quality.
As shown in figure 13, the 203-head upper guide rail and the 703-tail upper guide rail are completely the same in shape in a section perpendicular to the conveying direction, can be integrally cold-drawn and formed, and have working face hardness of HB 180-250, the structural design ensures good consistency of the guide rails, and can effectively avoid the deviation of the 3-V-shaped conveying chain caused by the difference of the overall dimension and the processing precision of the guide rails, and secondly, avoidance grooves are arranged near the butt joints of the head upper guide rail and the tail upper guide rail and the arc guide rail block, and can avoid the interference of the 3-V-shaped conveying chain caused by the polygon effect when the tail part of the conveyor head turns.
As shown in fig. 14, the 206-head lower arc guide and the 705-tail lower arc guide are identical in cross section perpendicular to the conveying direction, and the two arc guides have the same diameter. One side of each of the 206-head arc guide rail and the 705-tail lower arc guide rail is provided with a side baffle plate for preventing the 3-V-shaped conveying chain from deviating; in addition, the hardness of the working surface reaches HB 180-220. The design can effectively reduce the deviation of the 3-V-shaped conveying chain caused by the deviation of the guide rail and delay the abrasion of the guide rail.
Claims (7)
1. High-speed heavy load drag chain conveyor, including headstock part, middle frame part, V-arrangement conveying chain, tailstock part and transition device, its characterized in that: the headstock part comprises a head rack, an arc guide rail block, an upper head guide rail, a driving part, a head cover plate and a lower head arc guide rail, wherein the arc guide rail block is arranged at the left upper part of the inner side of the head rack, the end part of the arc guide rail block is attached to the upper head guide rail, the upper surface of the arc guide rail block is flush with the upper surface of the upper head guide rail, the two ends of the driving part are arranged in bearing seat holes in the head rack, the head cover plate is arranged on the upper surfaces of the left side plate and the right side plate of the head rack, and the lower head arc guide rail is arranged at the working section of a return chain and is positioned at the right lower part of the inner side of the head rack; the head frame comprises a left head side plate, a right head side plate, angle steel, a rectangular steel pipe and a bearing seat plate, wherein the angle steel is arranged at the bottoms of the left side plate and the right side plate, the rectangular pipe is arranged between the left side plate and the right side plate, and the bearing seat plate is positioned in the middle of the outer side surfaces of the two side plates; the left head side plate and the right head side plate are completely the same in shape, a rectangular steel plate can be cut along a curve during blanking, and a bearing seat fixing hole and an arc guide rail fixing hole are integrally machined after the two parts are combined; the working section of the arc guide rail block consists of two sections of eccentric arcs, the radius of the upper arc is smaller than that of the lower arc, and a side baffle for preventing the V-shaped conveying chain from deviating is arranged on one side of the arc guide rail block; the driving part comprises a bearing with a seat, a spacer bush, a chain wheel, a driving shaft and a speed reducer, and is sequentially arranged on the driving shaft, and the tooth-shaped part meshed with the chain wheel is a involute curve convenient for meshing; the lower arc guide rail of the head is eccentrically arranged, the minimum distance between the lower arc guide rail of the head and the addendum circle of the chain wheel in the driving part is convenient for the installation of the V-shaped conveying chain, and the numerical value of the V-shaped conveying chain is 10-20 mm larger than the outer diameter of a supporting wheel in the V-shaped conveying chain; all the components forming the head frame are fixedly connected through welding.
2. The high speed, heavy duty drag conveyor of claim 1, wherein: the middle frame part comprises a bending main frame, a connecting plate, rectangular pipes, an upper guide rail and a lower guide rail, wherein the bending main frame is of an integral bending structure, the connecting plate is welded at the end part of the bending main frame, the rectangular pipes are uniformly distributed along the bending main frame, the upper guide rail is arranged on the upper surface of the rectangular pipes in the bending main frame, and the lower guide rail is arranged on the left side and the right side of the bottom of the bending main frame.
3. The high speed, heavy duty drag conveyor of claim 1, wherein: the V-shaped conveying chain comprises supporting wheels, an outer chain plate, an inner chain plate, a V-shaped panel, a sleeve, a pin shaft and the like, wherein the V-shaped panel is arranged at the top of the outer chain plate and the top of the inner chain plate, the inner chain plate and the outer chain plate are connected in series through the pin shaft, the sleeve and the like, and the supporting wheels are arranged on the outer side of the outer chain plate.
4. The high speed, heavy duty drag conveyor of claim 1, wherein: the tail frame part comprises a tail frame, a tensioning device, an arc guide rail block, a tail upper guide rail, a tail cover plate and a tail lower arc guide rail, wherein the arc guide rail block is arranged at the right upper part of the inner side of the tail frame, the working surface of the arc guide rail block is tangent to the tail upper guide rail, two ends of the tensioning device are respectively arranged at the outer side of the tail frame, the tail cover plate is arranged on the upper surfaces of the left side plate and the right side plate of the tail frame, and the tail lower arc guide rail is arranged at the working section of the return chain and is positioned at the left lower part of the inner side of the tail frame; the tail machine frame comprises a left tail side plate, a right tail side plate, angle steel, a rectangular steel pipe and a tensioning slide mounting plate, wherein the angle steel is arranged at the bottoms of the left tail side plate and the right tail side plate; the shapes of the left tail side plate and the right tail side plate are completely the same as those of the left head side plate and the right head side plate.
5. The high speed, heavy duty drag conveyor of claim 1, wherein: the transition device comprises a mounting base, a paper passing plate, a mandrel, a sliding bearing and a rubber coating roller; the rubber coating roller comprises two rollers or a single roller; the middle part of the rubber-coating roller is V-shaped, the angle is 170-175 degrees, the surface of the roller is coated with wear-resistant soft rubber, and two ends of the roller are provided with self-lubricating sliding bearings; the outer side of the rubber coating roller is also provided with a paper passing plate.
6. The high speed, heavy duty scraper chain conveyor of claim 1 and claim 4 wherein: the cross sections of the head upper guide rail and the tail upper guide rail are completely the same in shape and can be formed by integral cold drawing; avoidance grooves are arranged near the joint of the head upper guide rail and the tail upper guide rail with the arc guide rail block.
7. The high speed, heavy duty slat conveyor of claim 1 and claim 4, wherein: the cross section shapes of the lower arc guide rail at the head part and the lower arc guide rail at the tail part are completely the same, the radiuses of the two lower arc guide rails are the same, and a side baffle plate for preventing the V-shaped conveying chain from deviating is arranged on one side of each lower arc guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122852002.1U CN216582387U (en) | 2021-11-20 | 2021-11-20 | High-speed heavy-load chain scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122852002.1U CN216582387U (en) | 2021-11-20 | 2021-11-20 | High-speed heavy-load chain scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216582387U true CN216582387U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122852002.1U Active CN216582387U (en) | 2021-11-20 | 2021-11-20 | High-speed heavy-load chain scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216582387U (en) |
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2021
- 2021-11-20 CN CN202122852002.1U patent/CN216582387U/en active Active
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Address after: 410117 268 Xinxing Road, Yuhua Economic Development Zone, Changsha, Hunan Patentee after: China Light Changtai (Changsha) Intelligent Technology Co.,Ltd. Address before: 410117 268 Xinxing Road, Yuhua Economic Development Zone, Changsha, Hunan Patentee before: CHANGSHA CHAINT MACHINERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |