CN213415744U - Strip tension control device for aluminum fin strip rolling machine - Google Patents
Strip tension control device for aluminum fin strip rolling machine Download PDFInfo
- Publication number
- CN213415744U CN213415744U CN202022026848.5U CN202022026848U CN213415744U CN 213415744 U CN213415744 U CN 213415744U CN 202022026848 U CN202022026848 U CN 202022026848U CN 213415744 U CN213415744 U CN 213415744U
- Authority
- CN
- China
- Prior art keywords
- fixed
- roll
- supporting plate
- control device
- upper bracket
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a belting tension control device who uses on aluminum fin rolls tape unit, including upper bracket, lower carriage, rotate first feed roll, second feed roll, third feed roll and the fourth feed roll that is parallel to each other according to the direction of transmission in proper order on the antetheca of upper bracket, the fourth feed roll is kept away from fixed belting tension detection subassembly on the upper bracket of third feed roll one side, install on the upper bracket between first feed roll and the second feed roll and press the area subassembly. The utility model discloses a press setting of area subassembly, when changing the area material and rolling up, compress tightly two tape heads through the collet, then link together two tape head adhesions through the sticky tape, whole process need not artifical handheld tape head, only need handheld sticky tape can, realize fast reloading to the layer board can reciprocate under the effect of screw rod, avoids layer board and tape material contact to produce the friction and make the influence tape material quality.
Description
Technical Field
The utility model relates to a fin processing equipment technical field, concretely relates to area material tension control device who uses on aluminium fin rolls tape unit.
Background
The aluminum fin belt rolling machine is applied to the industries of automobile radiators, automobile air conditioners, automobile fan heaters, automobile intercoolers, automobile oil coolers, household air conditioners, thermal power plants, nuclear power plants and the like, is special equipment for processing and producing radiating fins, and is used for rolling flat belts into fin belts by using aluminum flat belt roll-shaped materials. In order to ensure stable, high-quality and high-efficiency work of a high-speed (belt conveying speed of 300m/min) aluminum fin belt rolling machine, the belt material must be ensured to be smooth, proper in tension and stable in feeding, otherwise, the problems of jamming, stacking and the like can be caused, and therefore the belt material tension control device is designed in the belt rolling machine equipment, the belt heads of the belt material are manually held when a belt material roll is replaced by the conventional tension control device, and then the other worker adopts an adhesive tape to adhere the two belt heads into a whole, so that the belt rolling machine is very inconvenient to use.
SUMMERY OF THE UTILITY MODEL
For solving the problem that prior art exists, the utility model provides a take material tension control device who uses on aluminium fin rolls the tape unit.
In order to achieve the above object, the utility model adopts the following technical scheme:
a belt tension control device for an aluminum fin belt rolling machine comprises an upper support and a lower support, wherein two ends of the upper support and two ends of the lower support are fixed through support columns, a first feed roller, a second feed roller, a third feed roller and a fourth feed roller which are parallel to each other are sequentially connected to the front wall of the upper support in a rotating mode according to a transmission direction, the lower support is connected with a fifth feed roller in a rotating mode, two guide rods are fixed between the upper support and the lower support, adjusting rollers are connected to the guide rods in a sliding mode, a belt tension detection assembly is fixed to the upper support on one side, away from the third feed roller, of the fourth feed roller, a belt pressing assembly is installed on the upper support between the first feed roller and the second feed roller and comprises pressing devices, a supporting plate and supporting blocks, the two pressing devices are fixed to the top of the upper support, and the supporting blocks are fixed to the front wall of the upper support, the supporting plate is located above the supporting block, the two ends of the bottom of the supporting plate are connected with anti-rotation assemblies, the central portion of the bottom of the supporting plate rotates to be connected with a screw, the screw penetrates through the supporting block and is in threaded connection with the supporting block, a chuck is fixed on the screw below the supporting block, when the chuck abuts against the bottom of the supporting block, the top surface of the supporting plate is flush with the top surface of the first feeding roller, a cutting opening is formed in the supporting plate, and the front end of the cutting opening is of an opening structure.
In any of the above schemes, preferably, each guide rod is slidably connected with a linear bearing seat, the linear bearing seats on the two guide rods are fixed to a fixing plate, the fixing plate is rotatably connected with two adjusting rollers, one of the adjusting rollers is located between the second feeding roller and the third feeding roller, and the other adjusting roller is located between the third feeding roller and the fourth feeding roller.
In any of the above aspects, it is preferable that the guide rod has upper and lower ends to which rubber rings are fixed, respectively.
In any of the above schemes, preferably, the presser is a manual clamp, and a pressure head on the manual clamp presses the strip material onto the supporting plate.
In any of the above schemes, preferably, the rotation preventing assembly includes a rotation preventing rod and a sleeve, the rotation preventing rod is fixed at two ends of the bottom of the supporting plate, the sleeve is fixed at a position on the supporting block corresponding to the rotation preventing rod, and the rotation preventing rod is inserted into the sleeve.
In any of the above schemes, preferably, the belt tension detection assembly includes a rubber roll, a compression roll, a tension roll and a sixth feed roll, the compression roll is located right above the rubber roll, the compression roll is connected with the lifting assembly, the sixth feed roll is located on one side of the rubber roll, the rubber roll and the sixth feed roll are both rotatably connected with the upper bracket, the tension roll is located between the sixth feed roll and the rubber roll, a tension detector is arranged below the tension roll, the tension detector is fixed on the upper bracket, the tension detector is connected with the support, and the tension roll is rotatably connected with the support.
In any of the above schemes, preferably, the lifting assembly comprises an air cylinder and a support plate, the support plate is fixed to the top of the upper support, a movable plate is arranged below the support plate, the press roller is located below the movable plate and is rotatably connected with the movable plate, the air cylinder is fixed to the top of the movable plate, and a telescopic rod on the air cylinder is fixed to the support plate.
In any of the above schemes, preferably, a tool box is fixed on the top of the upper support, at least two drawers arranged up and down are arranged in the tool box, and the outer edges of the drawers are clamped outside the tool box.
Preferably in any one of the above schemes, the outer edge plate of the drawer is provided with a through groove, the top of the toolbox is close to the fixed limiting block of the drawer, the limiting block is provided with a circular groove, the bottom wall of the circular groove is provided with a through hole, the through hole is internally provided with a stop lever in a penetrating manner, the bottom end of the stop lever is inserted into the groove on the drawer at the bottom, the top end of the stop lever is fixed with a first magnet, the circular groove is fixed with an annular magnet, and the first magnet and the annular magnet are mutually adsorbed in the circular groove.
Compared with the prior art, the utility model provides a strip tension control device who uses on the aluminium fin rolls the tape unit has following beneficial effect:
1. through the arrangement of the belt pressing assembly, when a belt material roll is replaced, the two belt heads are pressed through the pressing device, and then the two belt heads are adhered and connected together through the adhesive tape, the whole process is realized by only holding the adhesive tape without manually holding the belt heads, the quick material replacement is realized, the use is convenient and quick, and the supporting plate can move up and down under the action of the screw rod, so that the supporting plate moves down after the replacement of the belt material roll is completed, and the phenomenon that the quality of the belt material is influenced due to the friction generated by the contact between the supporting plate and the belt material is avoided;
2. the tension detector can detect the tension of the strip in the conveying process, so that the conveying speed of the strip is controlled by controlling the rotating speed of the servo motor, the tension of the strip is kept in a set range, and the problems of blocking, stacking and the like are avoided;
3. the tool box is arranged on the upper bracket, so that when the band material is cut and the band material roll is replaced, the cutting knife and the adhesive tape can be directly taken out from the drawer, the band material is operated, the use is convenient, and the inconvenience or the loss of taking the band material due to the messy placement of tools is avoided.
Drawings
Fig. 1 is a schematic overall structure diagram of a belt tension control device for an aluminum fin belt rolling machine according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of the tool box of FIG. 1;
FIG. 3 is a right side view of FIG. 2;
fig. 4 is a partial enlarged view of a-a in fig. 3.
The figures are labeled as follows: 1. an upper bracket; 2. a lower bracket; 3. a support pillar; 4. a fixing plate; 5. a fifth feed roller; 6. a leveling roller; 7. a lower proximity switch; 8. an upper proximity switch; 9. a rubber ring; 10. a rubber roller; 11. a sixth feed roller; 12. a first feed roller; 13. a second feed roller; 14. a third feed roller; 15. a fourth feed roller; 16. a compression roller; 17. a guide post; 18. A tension roller; 19. a support; 20. a tension detector; 21. a compactor; 22. a support plate; 23. a screw; 24. a support block; 25. a tool box; 26. a cylinder; 27. a drawer; 28. a groove; 29. a stop lever; 30. a limiting block; 31. a first magnet; 32. and cutting the opening.
Detailed Description
In order to further understand the inventive content of the present invention, the present invention will be explained in detail with reference to the specific embodiments.
As shown in fig. 1-4, according to the utility model provides an embodiment of a strip tension control device who uses on aluminum fin rolls tape unit, including upper bracket 1, lower carriage 2, the both ends of upper bracket 1 and lower carriage 2 are fixed through support column 3, rotate according to the direction of transmission on the antetheca of upper bracket 1 in proper order and be connected with first feed roller 12, second feed roller 13, third feed roller 14 and fourth feed roller 15 that are parallel to each other, rotate on the lower carriage 2 and connect fifth feed roller 5, two guide bars are fixed between upper bracket 1 and the lower carriage 2, sliding connection adjusting roller 6 on the guide bar, fourth feed roller 15 keeps away from fixed strip tension detection component on the upper bracket 1 of third feed roller 14 one side, install on the upper bracket 1 between first feed roller 12 and the second feed roller 13 and press the strip assembly, the strip assembly includes compactor 21, press, The supporting plate and the supporting block 24 are provided, the two compactors 21 are fixed at the top of the upper bracket 1, the supporting block 24 is fixed on the front wall of the upper bracket 1, the supporting plate 22 is located above the supporting block 24, the two ends of the bottom of the supporting plate 22 are connected with anti-rotation components, the central part of the bottom of the supporting plate 22 is rotatably connected with the screw 23, the screw 23 penetrates through the supporting block 24 and is in threaded connection with the supporting block 24, the chuck is fixed on the screw 23 below the supporting block 24, when the chuck abuts against the bottom of the supporting block 24, the top surface of the supporting plate 22 is flush with the top end surface of the first feeding roller 12, the supporting plate 22 is provided with a cutting opening 32, and the front end of the. The two pressers 21 are arranged in parallel. The first feeding roller 12 and the fifth feeding roller 5 are respectively detachably fixed with two feeding check rings, and a material passing gap is reserved between the two feeding check rings.
When changing the area material and rolling up, at first the collet 21 who keeps away from first feed roller 12 pushes down, the area material that will use up compresses tightly on layer board 22, then the cutting means of taking, cut out the area material from the position of cutting opening 32, then the tape head that the area material that will change was rolled up compresses tightly on layer board 22 with another collet 21, adopt the sticky tape with two tape heads adhesion together, realize connecting, when changing the area material and rolling up, can compress tightly the tape head fast through collet 21, it is convenient to connect two tape heads with the sticky tape, realize quick reloading, high durability and convenient use.
The position of the supporting plate 22 can move up and down through the rotation of the screw 23, so that the supporting plate 22 moves down after the replacement of the strip coil is completed, and the influence on the strip quality caused by the friction generated by the contact between the supporting plate 22 and the strip is avoided.
Each guide rod is connected with a linear bearing seat in a sliding mode, the linear bearing seats on the two guide rods are fixed with the fixing plate 4, the fixing plate 4 is connected with two adjusting rollers 6 in a rotating mode, one adjusting roller 6 is located between the second feeding roller 13 and the third feeding roller 14, and the other adjusting roller 6 is located between the third feeding roller 14 and the fourth feeding roller 15.
Rubber rings 9 are respectively fixed at the upper end and the lower end of the guide rod, and play a role in buffering when colliding with the linear bearing seat, so that noise is reduced, and the linear bearing seat is damaged.
The presser 21 is a manual clamp, and a pressure head on the manual clamp presses the belt material on the supporting plate 22.
The anti-rotation component comprises an anti-rotation rod and a sleeve, the anti-rotation rod is respectively fixed at two ends of the bottom of the supporting plate 22, the sleeve is fixed on the supporting block 24 and corresponds to the anti-rotation rod, the anti-rotation rod is inserted into the sleeve, and the anti-rotation rod can move up and down relative to the sleeve.
The belt material tension detection assembly comprises a rubber roll 10, a compression roller 16, a tension roller 18 and a sixth feeding roller 11, wherein the compression roller 16 is located right above the rubber roll 10, the compression roller 16 is connected with a lifting assembly, the sixth feeding roller 11 is located on one side of the rubber roll 10, the rubber roll 10 and the sixth feeding roller 11 are both rotatably connected with the upper bracket 1, the tension roller 18 is located between the sixth feeding roller 11 and the rubber roll 10, a tension detector 20 is arranged below the tension roller 18, the tension detector 20 is fixed on the upper bracket 1, a support 19 is connected to the tension detector 20, and the tension roller 18 is rotatably connected with the support 19.
The belt material firstly winds the compression roller 16 and bypasses from the bottom of the rubber roller 10, then sequentially bypasses from the top end of the tension roller 18 and the bottom of the sixth feeding roller 11, the belt material generates pressure on the tension roller 18, a tension detector 20 detects a pressure signal generated by the belt material on the tension roller 18 and transmits the pressure signal to the PLC, and the PLC controls the rotating speed of a servo motor for driving the belt material to be conveyed according to the detected pressure so that the tension of the belt material is within a set range, and subsequent conveying and belt material forming are facilitated.
The lifting assembly comprises an air cylinder 26 and a supporting plate, the supporting plate is fixed to the top of the upper support 1, a moving plate is arranged below the supporting plate, the pressing roller 16 is located below the moving plate and is rotatably connected with the moving plate, the air cylinder 26 is fixed to the top of the moving plate, and a telescopic rod on the air cylinder 26 is fixed to the supporting plate.
The top of the moving plate is fixed with two guide posts 17, the part of the support plate corresponding to the guide posts 17 is fixed with a guide sleeve, the guide posts 17 penetrate through the guide sleeve, and the guide posts 17 between the support plate and the moving plate are sleeved with springs.
The top of upper bracket 1 is fixed with toolbox 25, be equipped with two at least drawers 27 that are range from top to bottom in the toolbox 25, the outer board of following of drawer 27 is in the outside of toolbox 25, be equipped with the recess 28 that link up on the outer board of following of drawer 27, the fixed stopper 30 in position that toolbox 25 top is close to drawer 27, be equipped with the circular recess on the stopper 30, the through-hole has been seted up on the diapire in the circular recess, it has pin 29 to run through in the through-hole, the bottom of pin 29 injects in the recess 28 on the drawer 27 of below, the fixed first magnet 31 in top of pin 29, the circular recess is fixed with annular magnet, first magnet 31 with be located the circular recess and annular magnet adsorbs each other, the fixed pull ring in top of first magnet 31, pin 29 passes from annular magnet's inboard.
In this embodiment, proximity switch 8 is fixed to the support column 3 upper end of fixed plate 4 one side, and proximity switch 7 under the fixed of support column 3 lower extreme, be fixed with the response piece on fixed plate 4 to make last proximity switch 8 and lower proximity switch 7 detect the positional information of adjusting roller 6 through the response piece.
The belt material tension control device further comprises a control box, a PLC is installed in the control box, the type of the PLC can be S7-300, but the device is not limited to the type, and the upper proximity switch 8, the lower proximity switch 7 and the cylinder 26 tension detector 20 are connected with the PLC.
In this embodiment, fixed gear area on the back wall of fixed plate, the bottom of upper bracket is rotated and is connected the gear, and the gear is walked around to the gear area, and the balancing weight is fixed to the other end in gear area, because this structure is prior art, consequently, no longer gives detailed description here.
The working principle of the embodiment is as follows: when the belt material is wound, the belt material firstly bypasses from the bottom of the fifth feeding roller 5, then sequentially passes through the first feeding roller 12, the second feeding roller 13, the adjusting roller 6, the third feeding roller 14, the adjusting roller 6 and the fourth feeding roller 15, then bypasses from the top of the compression roller 16 and passes through between the compression roller 16 and the rubber roller 10, and bypasses from the top of the tension roller 18 and bypasses from the bottom of the sixth feeding roller 11 to finish winding, the air cylinder 26 can drive the compression roller 16 to move up and down relative to the rubber roller 10, so that the size of a gap between the compression roller 16 and the rubber roller 10 can be adjusted, and the belt materials with different thicknesses can pass through.
It will be understood by those skilled in the art that any combination of the elements of the present invention, including the summary and detailed description of the invention provided in the foregoing description and illustrated in the accompanying drawings, is not to be considered limiting in scope and in order to make the description more concise, and not to describe every element of the combination. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a take material tension control device that aluminium fin rolls tape unit and goes up usefulness, includes upper bracket, lower carriage, the support column is fixed through at the both ends of upper bracket and lower carriage, its characterized in that: the front wall of the upper bracket is sequentially and rotatably connected with a first feed roller, a second feed roller, a third feed roller and a fourth feed roller which are parallel to each other according to a transmission direction, the lower bracket is rotatably connected with a fifth feed roller, two guide rods are fixed between the upper bracket and the lower bracket, adjusting rollers are slidably connected on the guide rods, a belt tension detection assembly is fixed on the upper bracket at one side of the fourth feed roller, which is far away from the third feed roller, a belt pressing assembly is installed on the upper bracket between the first feed roller and the second feed roller, the belt pressing assembly comprises two pressing devices, a supporting plate and a supporting block, the two pressing devices are respectively fixed on the top of the upper bracket, the supporting block is fixed on the front wall of the upper bracket, the supporting plate is positioned above the supporting block, two ends of the bottom of the supporting plate are connected with anti-rotation assemblies, and the central part of the bottom of the supporting plate is rotatably connected with a screw, the screw rod penetrates through the supporting block and is in threaded connection with the supporting block, a chuck is fixed on the screw rod below the supporting block, when the chuck abuts against the bottom of the supporting block, the top surface of the supporting plate is flush with the top surface of the first feeding roller, a cutting opening is formed in the supporting plate, and the front end of the cutting opening is of an opening structure.
2. The strip tension control device for the aluminum fin strip rolling machine according to claim 1, characterized in that: every sliding connection sharp bearing frame on the guide bar, the sharp bearing frame on two guide bars is all fixed with the fixed plate, rotating connection two adjusting rollers on the fixed plate, one of them adjusting roller is located between second feed roll and the third feed roll, and another adjusting roller is located between third feed roll and the fourth feed roll.
3. The strip tension control device for the aluminum fin strip rolling machine according to claim 2, characterized in that: and rubber rings are respectively fixed at the upper end and the lower end of the guide rod.
4. The strip tension control device for the aluminum fin strip rolling machine according to claim 1, characterized in that: the pressing device is a manual clamp, and a pressing head on the manual clamp presses the belt material on the supporting plate.
5. The strip tension control device for the aluminum fin strip rolling machine according to claim 1, characterized in that: the anti-rotation component comprises an anti-rotation rod and a sleeve, the anti-rotation rod is respectively fixed at two ends of the bottom of the supporting plate, the sleeve is fixed on the supporting block and corresponds to the anti-rotation rod, the anti-rotation rod is inserted into the sleeve, and the anti-rotation rod can move up and down relative to the sleeve.
6. The strip tension control device for the aluminum fin strip rolling machine according to claim 1, characterized in that: the belt material tension detection assembly comprises a rubber roll, a compression roll, a tension roll and a sixth feeding roll, the compression roll is located right above the rubber roll, the compression roll is connected with the lifting assembly, the sixth feeding roll is located on one side of the rubber roll, the rubber roll and the sixth feeding roll are both rotatably connected with the upper support, the tension roll is located between the sixth feeding roll and the rubber roll, a tension detector is arranged below the tension roll and fixed on the upper support, a support is connected to the tension detector, and the tension roll is rotatably connected with the support.
7. The strip tension control device for the aluminum fin strip rolling machine according to claim 6, characterized in that: the lifting assembly comprises an air cylinder and a supporting plate, the supporting plate is fixed to the top of the upper support, a movable plate is arranged below the supporting plate, the compression roller is located below the movable plate and is connected with the movable plate in a rotating mode, the air cylinder is fixed to the top of the movable plate, and a telescopic rod on the air cylinder is fixed to the supporting plate.
8. The strip tension control device for the aluminum fin strip rolling machine according to claim 1, characterized in that: the tool box is fixed to the top of the upper support, at least two drawers which are arranged up and down are arranged in the tool box, and the outer edges of the drawers are clamped outside the tool box.
9. The strip tension control device for the aluminum fin strip rolling machine according to claim 8, characterized in that: the outer board of following of drawer is equipped with the recess that link up, the fixed stopper in the position that the toolbox top is close to the drawer, be equipped with the circular recess on the stopper, the through-hole has been seted up on the diapire in the circular recess, the pin has been run through in the through-hole, the bottom of pin injects in the recess on the drawer of below, the fixed first magnet in top of pin, the circular recess is fixed with annular magnet, first magnet with be located the circular recess and adsorb each other with annular magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022026848.5U CN213415744U (en) | 2020-09-16 | 2020-09-16 | Strip tension control device for aluminum fin strip rolling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022026848.5U CN213415744U (en) | 2020-09-16 | 2020-09-16 | Strip tension control device for aluminum fin strip rolling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213415744U true CN213415744U (en) | 2021-06-11 |
Family
ID=76262371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022026848.5U Active CN213415744U (en) | 2020-09-16 | 2020-09-16 | Strip tension control device for aluminum fin strip rolling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213415744U (en) |
-
2020
- 2020-09-16 CN CN202022026848.5U patent/CN213415744U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108657860B (en) | Cutting, stacking, conveying and rolling integrated household film production device | |
| US4708761A (en) | Laminating apparatus for prepreg materials | |
| CN107512614B (en) | Material strip automatic cutter | |
| CN208930446U (en) | Facial mask cutter device and producing line | |
| CN209536702U (en) | A kind of material rolling device of coiled strip equipment | |
| CN112278981A (en) | Double faced adhesive tape cutting laminating machine | |
| CN110127119B (en) | Film packaging device | |
| CN213415744U (en) | Strip tension control device for aluminum fin strip rolling machine | |
| CN109250553A (en) | Automatic coiling equipment | |
| CN107500015B (en) | Sponge sheet and double-sided tape laminating equipment | |
| CN209536554U (en) | A kind of automatic coiling equipment | |
| CN211682388U (en) | Polymer cutting and sheet making machine | |
| CN109551861B (en) | Nanocrystalline tectorial membrane equipment | |
| CN109594219B (en) | Automatic sewing equipment for synthetic leather cloth | |
| CN217780278U (en) | Spliced cord fabric winding device based on automatic lining cloth deviation correction | |
| CN116330366A (en) | Cutting equipment for film production | |
| CN109151703B (en) | Tape taping machine for voice coil paper tube | |
| CN214059349U (en) | Aluminum plate area coiling mechanism | |
| CN112174067B (en) | Full-automatic spiral cover machine | |
| CN214059350U (en) | Aluminum plate belt film-covering winding device | |
| CN113752670A (en) | Film laminating device and method for polystyrene decorative strip | |
| CN210237976U (en) | Glove production equipment | |
| CN209755288U (en) | Compound all-in-one that cuts of coil of strip multilayer wrapping paper | |
| CN114229558B (en) | Full-automatic packing belt winding machine and control method thereof | |
| CN219467000U (en) | Composite film laminating device with adjustable roller spacing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Building 1-101, No. 37, Hengze Industrial Park, Shuanggang Town Industrial Park, Jinnan District, Tianjin, 300000 Patentee after: TIANJIN YUANHAI SHENLONG TECHNOLOGY Co.,Ltd. Address before: No.5 Guda Road, Jingbin Industrial Park, Wuqing District, Tianjin Patentee before: TIANJIN YUANHAI SHENLONG TECHNOLOGY Co.,Ltd. |