CN206689300U - A high-precision bending forming stamping die - Google Patents

A high-precision bending forming stamping die Download PDF

Info

Publication number
CN206689300U
CN206689300U CN201720433739.0U CN201720433739U CN206689300U CN 206689300 U CN206689300 U CN 206689300U CN 201720433739 U CN201720433739 U CN 201720433739U CN 206689300 U CN206689300 U CN 206689300U
Authority
CN
China
Prior art keywords
die
fixedly connected
plug
base
baffle
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
Application number
CN201720433739.0U
Other languages
Chinese (zh)
Inventor
刘述光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan City Jixin Motion Article Co ltd
Original Assignee
Dongguan City Jixin Motion Article Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dongguan City Jixin Motion Article Co ltd filed Critical Dongguan City Jixin Motion Article Co ltd
Priority to CN201720433739.0U priority Critical patent/CN206689300U/en
Application granted granted Critical
Publication of CN206689300U publication Critical patent/CN206689300U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The utility model relates to a mould equipment technical field just discloses a high accuracy shaping stamping die that bends, including base, last die and lower terrace die, the middle part fixedly connected with loading board of base upper surface, the middle part at loading board upper surface is installed to lower terrace die, and the last fixed surface of loading board is connected with plug-in components, it is located down the terrace die directly over to go up the die, the slot has been seted up to the lower surface of going up the die, and the middle part fixed connection of the upper surface of going up the die and punching press board lower surface, the first baffle of the equal fixedly connected with of both sides face of loading board. This high accuracy shaping stamping die that bends through setting up plug-in components, slot, first baffle and pneumatic cylinder, increases the punching force degree, utilizes first baffle to block last die simultaneously in stamping process, prevents to rock, utilizes the cooperation of slot and plug-in components, will go up the die fixed, prevents to go up the die and rock, has reached the messenger and has bent more accurate effect, and it is more convenient to use.

Description

一种高精度折弯成型冲压模具A high-precision bending forming stamping die

技术领域technical field

本实用新型涉及模具设备技术领域,具体为一种高精度折弯成型冲压模具。The utility model relates to the technical field of mold equipment, in particular to a high-precision bending forming stamping mold.

背景技术Background technique

模具,工业生产上用以注塑、吹塑、挤出、压铸或锻压成型、冶炼、冲压等方法得到所需产品的各种模子和工具。简而言之,模具是用来成型物品的工具,这种工具由各种零件构成,不同的模具由不同的零件构成。它主要通过所成型材料物理状态的改变来实现物品外形的加工。素有“工业之母”的称号。Mold, various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, a mold is a tool used to shape an object. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. Known as the "Mother of Industry".

在外力作用下使坯料成为有特定形状和尺寸的制件的工具。广泛用于冲裁、模锻、冷镦、挤压、粉末冶金件压制和压力铸造,以及工程塑料、橡胶、陶瓷等制品的压塑或注塑的成形加工中。模具具有特定的轮廓或内腔形状,应用具有刃口的轮廓形状可以使坯料按轮廓线形状发生分离(冲裁)。应用内腔形状可使坯料获得相应的立体形状。模具一般包括动模和定模(或凸模和凹模)两个部分,二者可分可合。分开时取出制件,合拢时使坯料注入模具型腔成形。模具是精密工具,形状复杂,承受坯料的胀力,对结构强度、刚度、表面硬度、表面粗糙度和加工精度都有较高要求,模具生产的发展水平是机械制造水平的重要标志之一。然而目前市场上的折弯成型冲压模具在进行冲压时大都存在晃动的现象,影响模具冲压的精度,从而影响产品的质量。Under the action of external force, the blank becomes a tool with a specific shape and size. Widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing and pressure casting, as well as compression molding or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or cavity shape, and the application of a contour shape with a cutting edge can separate the blank according to the contour line shape (punching). Applying the shape of the inner cavity can make the blank obtain the corresponding three-dimensional shape. The mold generally includes two parts, the movable mold and the fixed mold (or punch and die), which can be separated or combined. Take out the parts when they are separated, and inject the blank into the mold cavity to form when they are closed. The mold is a precision tool with a complex shape and bears the bulging force of the billet. It has high requirements for structural strength, stiffness, surface hardness, surface roughness and machining accuracy. The development level of mold production is one of the important symbols of the level of mechanical manufacturing. However, most of the bending forming stamping dies currently on the market have shaking phenomena during stamping, which affects the precision of die stamping, thereby affecting the quality of products.

实用新型内容Utility model content

(一)解决的技术问题(1) Solved technical problems

针对现有技术的不足,本实用新型提供了一种高精度折弯成型冲压模具,解决了成型冲压模具的折弯精度差的问题。Aiming at the deficiencies of the prior art, the utility model provides a high-precision bending forming stamping die, which solves the problem of poor bending precision of the forming stamping die.

(二)技术方案(2) Technical solution

为实现上述目的,本实用新型提供如下技术方案:一种高精度折弯成型冲压模具,包括底座、上凹模和下凸模,所述底座上表面的中部固定连接有承载板,所述下凸模安装在承载板上表面的中部,且承载板的上表面固定连接有插件,所述上凹模位于下凸模的正上方,所述上凹模的下表面开设有插槽,且上凹模的上表面与冲压板下表面的中部固定连接,所述承载板的两侧面均固定连接有第一挡板,且第一挡板的底面与底座的上表面固定连接,所述冲压板下表面的两侧均与伸缩弹簧的一端固定连接,所述伸缩弹簧的底端与底座的上表面固定连接,所述伸缩弹簧的内部插接有固定杆,所述固定杆的底端固定连接在底座的上表面,所述固定杆的顶端贯穿冲压板并与位于冲压板上方的第二挡板的下表面固定连接,所述底座上表面的两侧均固定连接有支撑板,所述支撑板的底部固定连接有安装板,所述安装板下表面的中部安装有液压缸,所述液压缸的输出轴固定连接在冲压板上表面的中部,且位于底座上表面左侧的支撑板的左侧面安装有控制器。In order to achieve the above purpose, the utility model provides the following technical solutions: a high-precision bending forming stamping die, including a base, an upper die and a lower punch, the middle part of the upper surface of the base is fixedly connected with a bearing plate, the lower The punch is installed in the middle of the upper surface of the bearing plate, and the upper surface of the bearing plate is fixedly connected with a plug-in, the upper die is located directly above the lower punch, the lower surface of the upper die is provided with a slot, and the upper The upper surface of the die is fixedly connected to the middle part of the lower surface of the stamping plate, the first baffles are fixedly connected to both sides of the bearing plate, and the bottom surface of the first baffle is fixedly connected to the upper surface of the base, the stamping plate Both sides of the lower surface are fixedly connected with one end of the telescopic spring, the bottom end of the telescopic spring is fixedly connected with the upper surface of the base, and a fixed rod is inserted inside the telescopic spring, and the bottom end of the fixed rod is fixedly connected On the upper surface of the base, the top of the fixed rod penetrates the stamping plate and is fixedly connected with the lower surface of the second baffle above the stamping plate, and both sides of the upper surface of the base are fixedly connected with support plates, and the support The bottom of the plate is fixedly connected with a mounting plate, and a hydraulic cylinder is installed in the middle of the lower surface of the mounting plate. The output shaft of the hydraulic cylinder is fixedly connected to the middle of the upper surface of the stamping plate, and is located The controller is installed on the left side.

优选的,所述上凹模的宽度和承载板宽度的大小相同。Preferably, the width of the upper die is the same as the width of the bearing plate.

优选的,所述底座下表面的四角均固定连接有支撑杆。Preferably, the four corners of the lower surface of the base are fixedly connected with support rods.

优选的,所述插件的顶端固定连接有锥形头,且插件的宽度与插槽的宽度相同。Preferably, a tapered head is fixedly connected to the top of the insert, and the width of the insert is the same as that of the slot.

优选的,所述插件的数量为四个,每两个插件为一组,两组插件分别位于承载板上表面两侧的前侧和后侧。Preferably, the number of the inserts is four, and every two inserts form a group, and the two sets of inserts are respectively located on the front side and the rear side of the two sides of the upper surface of the carrier plate.

(三)有益效果(3) Beneficial effects

与现有技术相比,本实用新型提供了一种高精度折弯成型冲压模具,具备以下有益效果:Compared with the prior art, the utility model provides a high-precision bending forming stamping die, which has the following beneficial effects:

1、该高精度折弯成型冲压模具,通过设置插件、插槽、第一挡板和液压缸,加大冲压力度,同时在冲压过程中利用第一挡板将上凹模挡住,防止晃动,利用插槽和插件的配合,将上凹模固定,防止上凹模晃动,达到了使折弯更加精准的效果,使用更加方便。1. The high-precision bending forming stamping die increases the stamping force by setting inserts, slots, first baffles and hydraulic cylinders, and at the same time uses the first baffle to block the upper die during the stamping process to prevent shaking. Using the cooperation of the slot and the plug-in, the upper die is fixed to prevent the upper die from shaking, which achieves the effect of making the bending more precise and more convenient to use.

2、该高精度折弯成型冲压模具,通过设置对上凹模和承载板宽度的限定,使第一挡板可以起到夹持和阻挡晃动的效果,从而提高折弯的精准度,通过设置锥形头,由于插件与插槽宽度相同,防止冲压过程插件被插槽挡住而无法插接,影响固定效果,通过对插件的限定,在承载板的四角对上凹模进行固定,使固定更加稳固,提高折弯的精准度。2. The high-precision bending forming stamping die, by setting the limitation on the width of the upper die and the bearing plate, enables the first baffle to play the role of clamping and blocking shaking, thereby improving the accuracy of bending. Tapered head, because the width of the plug-in and the slot is the same, it prevents the plug-in from being blocked by the slot during the stamping process and cannot be plugged in, which affects the fixing effect. Stable and improve the accuracy of bending.

附图说明Description of drawings

图1为本实用新型结构正剖图。Fig. 1 is a front sectional view of the structure of the utility model.

图中:1底座、2上凹模、3下凸模、4承载板、5插件、6锥形头、7插槽、8冲压板、9第一挡板、10伸缩弹簧、11固定杆、12第二挡板、13支撑板、14安装板、15液压缸、16控制器、17支撑杆。In the figure: 1 base, 2 upper die, 3 lower punch, 4 bearing plate, 5 insert, 6 conical head, 7 slot, 8 stamping plate, 9 first baffle, 10 telescopic spring, 11 fixing rod, 12 second baffle plate, 13 support plate, 14 installation plate, 15 hydraulic cylinder, 16 controller, 17 support rod.

具体实施方式detailed description

下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

请参阅图1,一种高精度折弯成型冲压模具,包括底座1、上凹模2和下凸模3,底座1下表面的四角均固定连接有支撑杆17,底座1上表面的中部固定连接有承载板4,下凸模3安装在承载板4上表面的中部,上凹模2的宽度和承载板4宽度的大小相同,通过设置对上凹模2和承载板4宽度的限定,使第一挡板9可以起到夹持和阻挡晃动的效果,从而提高折弯的精准度,且承载板4的上表面固定连接有插件5,插件5的顶端固定连接有锥形头6,且插件5的宽度与插槽7的宽度相同,通过设置锥形头6,由于插件5与插槽7宽度相同,防止冲压过程插件5被插槽7挡住而无法插接,影响固定效果,插件5的数量为四个,每两个插件5为一组,两组插件5分别位于承载板4上表面两侧的前侧和后侧,通过对插件5的限定,在承载板4的四角对上凹模2进行固定,使固定更加稳固,提高折弯的精准度,上凹模2位于下凸模3的正上方,上凹模2的下表面开设有插槽7,且上凹模2的上表面与冲压板8下表面的中部固定连接,承载板4的两侧面均固定连接有第一挡板9,且第一挡板9的底面与底座1的上表面固定连接,冲压板8下表面的两侧均与伸缩弹簧10的一端固定连接,伸缩弹簧10的底端与底座1的上表面固定连接,伸缩弹簧10的内部插接有固定杆11,固定杆11的底端固定连接在底座1的上表面,固定杆11的顶端贯穿冲压板8并与位于冲压板8上方的第二挡板12的下表面固定连接,底座1上表面的两侧均固定连接有支撑板13,支撑板13的底部固定连接有安装板14,安装板14下表面的中部安装有液压缸15,液压缸15的输出轴固定连接在冲压板8上表面的中部,且位于底座1上表面左侧的支撑板13的左侧面安装有控制器16。Please refer to Figure 1, a high-precision bending forming stamping die, including a base 1, an upper die 2 and a lower punch 3, the four corners of the lower surface of the base 1 are fixedly connected with support rods 17, and the middle part of the upper surface of the base 1 is fixed Connected with the carrier plate 4, the lower punch 3 is installed in the middle of the upper surface of the carrier plate 4, the width of the upper die 2 is the same as the width of the carrier plate 4, and the width of the upper die 2 and the carrier plate 4 is limited by setting, The first baffle plate 9 can play the effect of clamping and blocking shaking, thereby improving the accuracy of bending, and the upper surface of the bearing plate 4 is fixedly connected with the plug-in 5, and the top of the plug-in 5 is fixedly connected with the conical head 6, And the width of the plug-in 5 is the same as the width of the slot 7. By setting the tapered head 6, since the plug-in 5 has the same width as the slot 7, the plug-in 5 is prevented from being blocked by the slot 7 during the stamping process and cannot be inserted, which affects the fixing effect. The number of 5 is four, every two plug-ins 5 are a group, two groups of plug-ins 5 are respectively located on the front side and the back side of both sides of the upper surface of the carrier plate 4, through the limitation of the plug-ins 5, at the four corners of the carrier plate 4 The upper die 2 is fixed to make the fixation more stable and improve the accuracy of bending. The upper die 2 is located directly above the lower punch 3, and the lower surface of the upper die 2 is provided with a slot 7, and the upper die 2 The upper surface of the upper surface is fixedly connected with the middle part of the lower surface of the stamping plate 8, the two sides of the bearing plate 4 are all fixedly connected with the first baffle plate 9, and the bottom surface of the first baffle plate 9 is fixedly connected with the upper surface of the base 1, the stamping plate 8 Both sides of the lower surface are fixedly connected with one end of the telescopic spring 10, and the bottom end of the telescopic spring 10 is fixedly connected with the upper surface of the base 1, and the inside of the telescopic spring 10 is inserted with a fixed rod 11, and the bottom end of the fixed rod 11 is fixedly connected On the upper surface of the base 1, the top of the fixed rod 11 runs through the stamping plate 8 and is fixedly connected with the lower surface of the second baffle plate 12 above the stamping plate 8, and both sides of the upper surface of the base 1 are fixedly connected with support plates 13, The bottom of the support plate 13 is fixedly connected with a mounting plate 14, and the middle part of the lower surface of the mounting plate 14 is equipped with a hydraulic cylinder 15. The output shaft of the hydraulic cylinder 15 is fixedly connected with the middle part of the upper surface of the stamping plate 8, and is located on the left side of the upper surface of the base 1. Controller 16 is installed on the left side of support plate 13.

该文中出现的电器元件均与外界的主控器及220V市电电连接,并且主控器可为计算机等起到控制的常规已知设备。The electrical components appearing in this article are all connected with the external main controller and 220V mains electricity, and the main controller can be a conventional known device that plays a control such as a computer.

综上所述,该高精度折弯成型冲压模具,通过设置插件5、插槽7、第一挡板9和液压缸15,加大冲压力度,同时在冲压过程中利用第一挡板9将上凹模2挡住,防止晃动,利用插槽7和插件5的配合,将上凹模2固定,防止上凹模2晃动,达到了使折弯更加精准的效果,使用更加方便,解决了成型冲压模具的折弯精度差的问题。In summary, the high-precision bending forming stamping die increases the stamping force by setting the plug-in 5, the slot 7, the first baffle 9 and the hydraulic cylinder 15, and at the same time uses the first baffle 9 to press the The upper die 2 is blocked to prevent shaking. Using the cooperation of the slot 7 and the insert 5, the upper die 2 is fixed to prevent the upper die 2 from shaking, which achieves the effect of making the bending more precise, more convenient to use, and solves the problem of forming The problem of poor bending accuracy of stamping dies.

需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. any such actual relationship or order exists between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

尽管已经示出和描述了本实用新型的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本实用新型的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本实用新型的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of high-precision bending and molding diel, including base (1), upper cavity die (2) and lower punch (3), it is characterised in that: Loading plate (4) is fixedly connected with the middle part of base (1) upper surface, the lower punch (3) is arranged on loading plate (4) upper surface Middle part, and the upper surface of loading plate (4) is fixedly connected with plug-in unit (5), the upper cavity die (2) be located at lower punch (3) just on Side, the lower surface of the upper cavity die (2) offer slot (7), and the upper surface of upper cavity die (2) and pressed sheet (8) lower surface Middle part is fixedly connected, and the two sides of the loading plate (4) have been fixedly connected with first baffle (9), and the bottom surface of first baffle (9) It is fixedly connected with the upper surface of base (1), the one end of the both sides of pressed sheet (8) lower surface with adjustable spring (10) is fixed Connection, the bottom of the adjustable spring (10) are fixedly connected with the upper surface of base (1), and the inside of the adjustable spring (10) is inserted Fix bar (11) is connected to, the bottom of the fix bar (11) is fixedly connected on the upper surface of base (1), the fix bar (11) Top is through pressed sheet (8) and is fixedly connected with the lower surface of the second baffle (12) above pressed sheet (8), the base (1) both sides of upper surface have been fixedly connected with supporting plate (13), and the bottom of the supporting plate (13) is fixedly connected with installing plate (14) hydraulic cylinder (15), is installed, the output shaft of the hydraulic cylinder (15), which is fixed, to be connected in the middle part of installing plate (14) lower surface The middle part of pressed sheet (8) upper surface is connected on, and the left surface of the supporting plate (13) on the left of base (1) upper surface is provided with control Device (16) processed.
A kind of 2. high-precision bending and molding diel according to claim 1, it is characterised in that:The upper cavity die (2) Width it is identical with the size of loading plate (4) width.
A kind of 3. high-precision bending and molding diel according to claim 1, it is characterised in that:Under the base (1) The corner on surface has been fixedly connected with support bar (17).
A kind of 4. high-precision bending and molding diel according to claim 1, it is characterised in that:The plug-in unit (5) Top is fixedly connected with conical head (6), and the width of plug-in unit (5) is identical with the width of slot (7).
A kind of 5. high-precision bending and molding diel according to claim 1, it is characterised in that:The plug-in unit (5) Quantity be four, each two plug-in unit (5) be one group, two groups of plug-in units (5) respectively positioned at loading plate (4) upper surface both sides front side and Rear side.
CN201720433739.0U 2017-04-24 2017-04-24 A high-precision bending forming stamping die Expired - Fee Related CN206689300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720433739.0U CN206689300U (en) 2017-04-24 2017-04-24 A high-precision bending forming stamping die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720433739.0U CN206689300U (en) 2017-04-24 2017-04-24 A high-precision bending forming stamping die

Publications (1)

Publication Number Publication Date
CN206689300U true CN206689300U (en) 2017-12-01

Family

ID=60444910

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720433739.0U Expired - Fee Related CN206689300U (en) 2017-04-24 2017-04-24 A high-precision bending forming stamping die

Country Status (1)

Country Link
CN (1) CN206689300U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113784807A (en) * 2019-05-07 2021-12-10 株式会社天田集团 Plate bending machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113784807A (en) * 2019-05-07 2021-12-10 株式会社天田集团 Plate bending machine
CN113784807B (en) * 2019-05-07 2023-08-15 株式会社天田集团 Bending machine

Similar Documents

Publication Publication Date Title
CN204953630U (en) Ejecting formula blanking die
CN206689300U (en) A high-precision bending forming stamping die
CN104889259B (en) A kind of hole flanging compound die
CN107537935A (en) A kind of high-precision bending and molding diel
CN207982034U (en) An easy-to-use metal stamping die
CN211662451U (en) Mold ejection system
CN204638848U (en) A kind of high accuracy blanking die
CN109622769A (en) A kind of bracket mould
CN205702094U (en) Side pressure change gap press-moulding die
CN210589671U (en) Stamping die for plastic product processing
CN209647378U (en) A kind of multi-process one-pass molding stamping die
CN209439309U (en) A kind of automobile drawing type stamping die for high-tension plates
CN209110005U (en) A roundness shaping mold for metal injection molding parts
CN206997550U (en) One kind cold pressing steel mold
CN209094472U (en) A kind of four hole nut precoated sand molds
CN209381473U (en) A master mold with grooves
CN208162621U (en) A molding blank plastic mold
CN208230649U (en) Draw punch is stretched on a kind of air-conditioning interface die
CN216398744U (en) Cutting device for die manufacturing
CN209189601U (en) A kind of component with inclined plane takes out the structure of tooth
CN206316264U (en) A kind of punching fixture
CN205341670U (en) Earphone stamping forming mould
CN204867058U (en) Hole flanging compound die
CN104841752A (en) Backboard cutting die
CN217862977U (en) Mould embryo convenient to installation is dismantled

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: 20171201

Termination date: 20200424

CF01 Termination of patent right due to non-payment of annual fee