CN218656595U - Processing equipment for steel wire aluminum foil pipe - Google Patents

Processing equipment for steel wire aluminum foil pipe Download PDF

Info

Publication number
CN218656595U
CN218656595U CN202222715395.6U CN202222715395U CN218656595U CN 218656595 U CN218656595 U CN 218656595U CN 202222715395 U CN202222715395 U CN 202222715395U CN 218656595 U CN218656595 U CN 218656595U
Authority
CN
China
Prior art keywords
steel wire
swing arm
cutter
aluminum foil
working position
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
Application number
CN202222715395.6U
Other languages
Chinese (zh)
Inventor
周王明
周益智
单光道
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.)
Zhejiang Lisheng Mechanical Equipment Technology Co ltd
Original Assignee
Zhejiang Lisheng Mechanical Equipment Technology 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 Zhejiang Lisheng Mechanical Equipment Technology Co ltd filed Critical Zhejiang Lisheng Mechanical Equipment Technology Co ltd
Priority to CN202222715395.6U priority Critical patent/CN218656595U/en
Application granted granted Critical
Publication of CN218656595U publication Critical patent/CN218656595U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Wire Processing (AREA)

Abstract

The application discloses processing equipment of steel wire aluminium foil pipe, including the frame, rotate install in the forming die section of thick bamboo of frame and be used for cutting the cutter unit spare in steel wire and aluminium foil area, the axial one end output steel wire aluminium foil pipe of forming die section of thick bamboo, cutter unit spare includes: the swing arm is rotatably arranged on the frame; the driving mechanism drives the swing arm to enter a first working position when cutting is carried out, the swing arm has movement allowance relative to the driving mechanism, and can enter a second working position from the first working position through inertia and then reset to the first working position; the cutter, including installing in the steel wire cutter and the aluminium foil cutter of swing arm respectively, the steel wire cutter only acts on steel wire aluminium foil pipe under the second operating position, and the aluminium foil cutter acts on steel wire aluminium foil pipe at least at first operating position. This application steel wire aluminium foil pipe's processing equipment is through installing steel wire cutter and aluminium foil cutter in the swing arm together, and swing arm during operation can once directly cut off steel wire and aluminium foil, compares in prior art, has simplified holistic structure.

Description

Processing equipment for steel wire aluminum foil pipe
Technical Field
The application relates to the field of production and processing of aluminum foil pipes, in particular to a processing device for steel wire aluminum foil pipes.
Background
The aluminum foil corrugated pipe can also be called as a steel wire aluminum foil pipe, is an elastic pipe fitting formed by connecting foldable corrugated sheets along the folding and stretching direction, and can be widely applied to an air inlet system and a ventilation system of cold and hot air.
In order to cut off a continuously formed product when a steel wire aluminum foil pipe is processed, an automatic cutting device is proposed in the market, for example, a document with publication number CN107379589A discloses a corrugated pipe forming device with a cutter, which comprises a base, a forming roller for winding a steel wire into a spiral shape is mounted on the base, and the base is provided with: a movable cutter holder provided with a cutter for cutting the spiral steel wire; the cutter feeding assembly drives the cutter to cut off the steel wire; the sliding table is slidably mounted, a cutting knife for cutting the aluminum foil wound outside the spiral steel wire is arranged, and the steel wire and the aluminum foil of the corrugated pipe are automatically cut off by the cutting knife.
Although the device can automatically cut off the corrugated pipe, two sets of cylinders are needed to realize the respective movement of the cutter and the cutting knife, and the overall structure is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a processing equipment of steel wire aluminium foil pipe has solved the more complicated problem of overall structure when steel wire aluminium foil pipe cuts among the prior art.
Processing equipment of steel wire aluminium foil pipe, including the frame, rotate install in the shaping mould section of thick bamboo of frame and be used for cutting the cutter unit spare in steel wire and aluminium foil area, the axial one end of shaping mould section of thick bamboo output steel wire aluminium foil pipe, cutter unit spare includes:
the swing arm is rotatably arranged on the rack;
the driving mechanism drives the swing arm to enter a first working position when cutting is carried out, the swing arm has a movement allowance relative to the driving mechanism, and can enter a second working position from the first working position through inertia and then reset to the first working position;
the cutter, including install respectively in the steel wire cutter and the aluminium foil cutter of swing arm, the steel wire cutter only acts on steel wire aluminium foil pipe under the second operating position, the aluminium foil cutter acts on steel wire aluminium foil pipe at least at first operating position.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative may be combined individually for the above general solution or between several alternatives without technical or logical contradictions.
Optionally, the driving mechanism is an air cylinder, a piston rod of the air cylinder is provided with a force application part, and the force application part is abutted against and matched with the swing arm to drive the swing arm to enter the first working position.
Optionally, the swing arm further has an initial position, and the cutters avoid the steel wire aluminum foil pipe at the initial position;
the force application component is located at a relatively low position in the initial position, and at a relatively high position in the first working position.
Optionally, a limiting part is fixed on the force application part, and along the movement path of the swing arm, the limiting part and the force application part are respectively located at two sides of the swing arm;
the force application component can keep the swing arm at a first working position, and the limiting component limits the stroke of the swing arm between the first working position and the second working position.
Optionally, the swing arm is returned from the second working position to the first working position by gravity.
Optionally, the swing arm rotates around a first axis, the cutter is mounted to a free end of the swing arm, and an action portion of the force application component and the swing arm is adjacent to the first axis.
Optionally, the forming die cylinder rotates around a second axis, and in the first position, the aluminum foil cutter is closer to the second axis relative to the steel wire cutter.
Optionally, the first axis and the second axis are parallel, and a motion path of the swing arm is perpendicular to the first axis.
Optionally, the forming die cylinder comprises a fixing part fixedly connected with the frame and a winding part which can rotate relative to the fixing part and is used for winding the steel wire aluminum foil pipe, the winding part is adjacent to the inner wall of the steel wire aluminum foil pipe, and the steel wire cutter and the winding part are used for cutting two radial sides of the pipe wall of the steel wire aluminum foil pipe under the second working position.
Optionally, the cutting edge of the steel wire cutter extends parallel to the second axis; the blade of the aluminum foil cutter extends perpendicular to the second axis.
This application steel wire aluminium foil pipe's processing equipment is through installing steel wire cutter and aluminium foil cutter in the swing arm together, and swing arm during operation can once directly cut off steel wire and aluminium foil, compares in prior art, has simplified holistic structure.
Drawings
Fig. 1 is a schematic structural diagram of a processing apparatus for steel wire aluminum foil pipes according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a portion of the cutter assembly of FIG. 1;
FIG. 3 is a schematic view of the cutter assembly in a first position;
FIG. 4 is a schematic view of the cutter assembly in a second position;
FIG. 5 is an enlarged view of A in FIG. 3;
FIG. 6 is an enlarged view of B in FIG. 4;
FIG. 7 is a schematic view of the cutter assembly in an initial position;
FIG. 8 is a schematic structural view of a forming cylinder for processing steel wire aluminum foil pipes.
The reference numerals in the figures are illustrated as follows:
100. a frame;
200. forming a mold cylinder; 210. a fixed part; 220. a winding part; 221. a rolling post; 230. an embossing device;
300. a cutter assembly; 310. swinging arms; 311. a free end; 320. a drive mechanism; 321. a cylinder; 322. a piston rod; 323. a force application member; 324. a limiting component; 330. a cutter; 331. a steel wire cutter; 332. an aluminum foil cutter;
400. steel wire aluminium foil pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The aluminum foil corrugated pipe is a spirally foldable pipe fitting, the longitudinal section of the pipe wall of the aluminum foil corrugated pipe is wavy, the inner layer of the aluminum foil corrugated pipe is supported by spiral steel wires, and the outer layer of the aluminum foil corrugated pipe is formed by winding an aluminum foil belt. The aluminum foil corrugated tube is also called a steel wire aluminum foil tube 400 because it is made of steel wires and aluminum foil.
The conventional steel wire and aluminum foil pipe 400 is generally cut by a worker after reaching a certain length during the process, but the operation efficiency is low and it is difficult to ensure the cutting quality. In order to solve the problem, a device capable of automatically cutting to obtain products with consistent lengths is introduced in the market, but two types of cutters 330 are required to be arranged to respectively cut the steel wire and the aluminum foil during cutting due to different hardness of the steel wire and the aluminum foil, the two types of cutters 330 are respectively driven by two air cylinders, and the overall structure of the type is complex.
In order to solve the above problems, as shown in fig. 1 to 8, an embodiment of the present application provides a processing apparatus for a steel wire and aluminum foil pipe 400, which includes a frame 100, a forming die cylinder 200 rotatably mounted on the frame 100, and a cutter assembly 300 for cutting a steel wire and an aluminum foil tape, wherein one axial end of the forming die cylinder 200 outputs the steel wire and aluminum foil pipe 400, and after the steel wire and aluminum foil pipe 400 reaches a certain length, the cutter assembly 300 cuts the steel wire and aluminum foil pipe to obtain a product with a consistent length.
The cutter assembly 300 includes a swing arm 310, a drive mechanism 320, and a cutter 330. Wherein the swing arm 310 is rotatably mounted to the frame 100, specifically, rotatably connected to the frame 100 directly or indirectly through other components. When cutting is performed, the driving mechanism 320 drives the swing arm 310 to enter the first working position, the swing arm 310 has a movement margin relative to the driving mechanism 320, and can enter the second working position from the first working position through inertia and then reset to the first working position. Wherein, the position X1 in fig. 3 is the first working position, and the position X2 in fig. 4 is the second working position.
The allowance refers to that when the driving mechanism 320 stops moving, the swing arm 310 can still move relative to the driving mechanism 320, and can enter the second working position under the action of inertia, that is, the swing arm 310 can be driven from the first working position to the second working position without additionally configuring the driving mechanism 320, so that the number of parts is reduced, and the overall structure is simplified.
The cutter 330 comprises a steel wire cutter 331 and an aluminum foil cutter 332 respectively mounted on the swing arm 310, the steel wire cutter 331 only acts on the steel wire aluminum foil pipe 400 in the second working position, i.e. the steel wire aluminum foil pipe 400 is avoided in the first working position, and the aluminum foil cutter 332 at least acts on the steel wire aluminum foil pipe 400 in the first working position. Since the steel wire cutter 331 only needs to partially cut off the steel wire, the second working position does not need to be maintained, and in addition, although the aluminum foil cutter 332 can also work at the second working position, the cutting of the whole circumference is difficult to complete, so that the aluminum foil cutter 332 needs to maintain working at the first working position in order to ensure that the steel wire aluminum foil pipe 400 of the whole circumference can be completely cut.
When steel wire aluminium foil pipe 400 needs to be processed, forming die cylinder 200 works first, steel wire aluminium foil pipe 400 is continuously output to one axial end, after steel wire aluminium foil pipe 400 reaches a certain length, actuating mechanism 320 drives swing arm 310 to work, swing arm 310 rotates to a first working position, aluminium foil cutter 332 begins to cut the aluminium foil at this moment, simultaneously under the effect of inertia, swing arm 310 moves relative to actuating mechanism 320 and enters a second working position, steel wire cutter 331 works to cut off the steel wire (aluminium foil cutter 332 continues to work) at this moment, swing arm 310 resets to the first working position from the second working position under the action of gravity later, steel wire cutter 331 keeps away from steel wire aluminium foil pipe 400 at this moment, aluminium foil cutter 332 continues to work.
In an embodiment, the driving mechanism 320 is an air cylinder 321, a piston rod 322 of the air cylinder 321 is mounted with a force application member 323, and the force application member 323 abuts against the swing arm 310 to drive the swing arm 310 to enter the first working position. The swing arm 310 can be separated from the first working position to the second working position by inertia in an abutting manner, and after the swing arm 310 is reset, the force application component 323 and the swing arm 310 are still in an abutting state, that is, the driving mechanism 320 can keep the swing arm 310 at the first working position within a preset time period, so as to complete cutting.
Of course, the swing arm 310 also has an initial position (a position where the steel wire and aluminum foil pipe 400 does not need to be cut, specifically, X3 position in fig. 7), and the lower cutting knife 330 is located away from the steel wire and aluminum foil pipe 400 in the initial position. When the aluminum foil needs to be cut, the aluminum foil cutter 332 cuts into the steel wire aluminum foil pipe 400 and completely cuts off the steel wire aluminum foil pipe 400 after the steel wire aluminum foil pipe 400 rotates for a circle, at this time, the air cylinder 321 resets, and the cutter 330 returns to the initial position.
In the present embodiment, the urging member 323 is positioned at a relatively low position in the initial position, and the urging member 323 is positioned at a relatively high position in the first operating position. Due to the fact that the two parts are in butt fit, the pulling reset parts can be omitted, when the force application part 323 returns to the initial position, the swing arm 310 can follow the force application part by means of gravity, and the structure is simpler.
The force application component 323 is fixed with a limiting component 324 which can limit the motion of the swing arm 310, specifically, along the motion path of the swing arm 310, the limiting component 324 and the force application component 323 are respectively positioned at two sides of the swing arm 310;
the force application member 323 can hold the swing arm 310 at the first operating position, and the stopper member 324 limits the stroke of the swing arm 310 between the first operating position and the second operating position.
The amplitude of the movement allowance is limited by the distance between the limiting component 324 and the force application component 323, namely, the limiting component 324 determines the second working position, the movement of the swing arm 310 is always in a controllable range, and uncertain influences and potential safety hazards on the steel wire aluminum foil pipe 400 are avoided.
The specific length of the swing arm 310 is adjustable, and the swing arm can be adjusted according to the distance between the swing arm and the forming die cylinder 200, so that the cutter assembly 300 can be ensured to be positioned at a proper position for smooth cutting.
As shown in fig. 1, for convenience of understanding, the first axis and the second axis designed in the following embodiments are specifically L1 and L2.
In one embodiment, the swing arm 310 rotates about a first axis, the cutter 330 is mounted to the free end 311 of the swing arm 310, and the force applying member 323 and the action point of the swing arm 310 are adjacent to the first axis. The reasonable location of action allows the cutter assembly 300 at the free end 311 to achieve greater linear speeds, providing sufficient force to cut by inertia.
The forming die cylinder 200 rotates about a second axis, and in the first operating position, the aluminum foil cutter 332 is closer to the second axis than the steel wire cutter 331. The aluminum foil cutter 332 and the steel wire cutter 331 are staggered, that is, the aluminum foil cutter 332 can keep the action of the steel wire aluminum foil pipe 400 to perform cutting at the first working position, and the steel wire cutter 331 is relatively far away from the steel wire aluminum foil pipe 400 to avoid unnecessary interference.
In the present embodiment, the first axis and the second axis are parallel, and the motion path of the swing arm 310 is perpendicular to the first axis.
The forming die cylinder 200 may adopt the prior art, and the aluminum foil tape and the steel wire may be rotationally wound into the steel wire aluminum foil pipe 400 under the driving of the driving mechanism. In this embodiment, the forming cylinder 200 includes a fixing portion 210 fixedly connected to the frame 100 and a winding portion 220 capable of rotating relative to the fixing portion 210 and used for winding the steel wire aluminum foil tube 400, the winding portion 220 is adjacent to the inner wall of the steel wire aluminum foil tube 400, and in the second working position, the steel wire cutter 331 and the winding portion 220 act on two radial sides of the tube wall of the steel wire aluminum foil tube 400 to perform cutting.
The winding part 220 serves as a liner to support the inner wall of the steel wire aluminum foil pipe 400, and the steel wire cutter 331 acts on the outer wall (the part with the steel wire) of the steel wire aluminum foil pipe 400 at the second working position to cut and cut the steel wire, otherwise, the pipe wall of the steel wire aluminum foil pipe 400 may partially collapse to affect the cutting effect.
The cutting edge of the steel wire cutter 331 extends parallel to the second axis, so that the contact surface with the steel wire is increased as much as possible, the steel wire can be cut off smoothly at the second working position, and the cutting edge of the aluminum foil cutter 332 extends perpendicular to the second axis.
As shown in fig. 8, in the present embodiment, the winding portion 220 includes a plurality of rolling pillars 221 arranged circumferentially around the second axis, and each rolling pillar 221 is capable of rotating with respect to the fixing portion 210. In this application, the transmission mode is belt drive, and this coiling portion 220 is close to a pot head of fixed part 210 and is equipped with the belt, can drive coiling portion 220 and rotate together, and cutter 330 during operation, steel wire cutter 331 and rolling post 221 act on the cutting steel wire mutually, and aluminium foil cutter 332 stretches into the space between two rolling posts 221 and carries out the cutting of aluminium foil. Of course, in order to obtain the corrugated steel wire and aluminum foil pipe 400, an embossing device 230 is further provided near the output position of the forming die cylinder 200, and the embossing device 230 has a circular cross section and can press the aluminum foil toward the inner wall to form the valleys when contacting the steel wire and aluminum foil pipe 400.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. Processing equipment of steel wire aluminium foil pipe, including the frame, rotate install in the shaping die cylinder of frame and be used for cutting the cutter unit spare in steel wire and aluminium foil area, the axial one end output steel wire aluminium foil pipe of shaping die cylinder, its characterized in that, the cutter unit spare includes:
the swing arm is rotatably arranged on the rack;
the driving mechanism drives the swing arm to enter a first working position when cutting is carried out, the swing arm has movement allowance relative to the driving mechanism, and can enter a second working position from the first working position through inertia and then reset to the first working position;
the cutter, including install respectively in the steel wire cutter and the aluminium foil cutter of swing arm, the steel wire cutter only acts on steel wire aluminium foil pipe under the second operating position, the aluminium foil cutter acts on steel wire aluminium foil pipe at least at first operating position.
2. The processing equipment of the steel wire aluminum foil pipe as claimed in claim 1, wherein the driving mechanism is a cylinder, a piston rod of the cylinder is provided with a force application component, and the force application component is in butt fit with the swing arm to drive the swing arm to enter the first working position.
3. The processing equipment of the steel wire aluminum foil pipe as claimed in claim 2, wherein the swing arm further has an initial position, and the cutters avoid the steel wire aluminum foil pipe in the initial position;
the force application component is located at a relatively low position in the initial position, and is located at a relatively high position in the first working position.
4. The processing equipment of the steel wire aluminum foil pipe as claimed in claim 3, wherein a limiting component is fixed on the force applying component, and the limiting component and the force applying component are respectively arranged at two sides of the swing arm along the motion path of the swing arm;
the force application component can keep the swing arm at a first working position, and the limiting component limits the stroke of the swing arm between the first working position and the second working position.
5. The apparatus for processing steel wire and aluminum foil pipe as claimed in claim 4, wherein the swing arm is returned from the second working position to the first working position by gravity.
6. The apparatus for processing steel wire and aluminum foil pipe as claimed in claim 5, wherein the swing arm rotates around a first axis, the cutter is mounted to a free end of the swing arm, and the action part of the force application member and the swing arm is adjacent to the first axis.
7. The apparatus as claimed in claim 6, wherein the forming cylinder rotates around a second axis, and the aluminum foil cutter is closer to the second axis than the steel wire cutter in a first position.
8. The processing equipment for steel wire and aluminum foil pipes as claimed in claim 7, wherein the first axis and the second axis are parallel, and the motion path of the swing arm is perpendicular to the first axis.
9. The processing equipment of the steel wire aluminum foil pipe as claimed in claim 1, wherein the forming die cylinder comprises a fixed part fixedly connected with the frame and a winding part capable of rotating relative to the fixed part and used for winding the steel wire aluminum foil pipe, the winding part is adjacent to the inner wall of the steel wire aluminum foil pipe, and in the second working position, the steel wire cutter and the winding part act on two radial sides of the pipe wall of the steel wire aluminum foil pipe to perform cutting.
10. The apparatus for processing steel wire and aluminum foil pipe as claimed in claim 7, wherein the cutting edge of the steel wire cutter extends parallel to the second axis; the blade of the aluminum foil cutter extends perpendicular to the second axis.
CN202222715395.6U 2022-10-14 2022-10-14 Processing equipment for steel wire aluminum foil pipe Active CN218656595U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222715395.6U CN218656595U (en) 2022-10-14 2022-10-14 Processing equipment for steel wire aluminum foil pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222715395.6U CN218656595U (en) 2022-10-14 2022-10-14 Processing equipment for steel wire aluminum foil pipe

Publications (1)

Publication Number Publication Date
CN218656595U true CN218656595U (en) 2023-03-21

Family

ID=85564512

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222715395.6U Active CN218656595U (en) 2022-10-14 2022-10-14 Processing equipment for steel wire aluminum foil pipe

Country Status (1)

Country Link
CN (1) CN218656595U (en)

Similar Documents

Publication Publication Date Title
US4924684A (en) Apparatus for forming and cutting spiral pipe
CN209635505U (en) The wrap-up of PLA polylactic acid degradable foam sheet production line
US4823579A (en) Apparatus for cutting hollow pipes
CN101342562A (en) Screw blade coiling and molding method, and molding equipment thereof
CN112387849A (en) Metal product side cut device
CN207327110U (en) A kind of bellows pipe cutting machine
US5193374A (en) Apparatus for cutting spiral pipe
CN218656595U (en) Processing equipment for steel wire aluminum foil pipe
US5636541A (en) Apparatus for forming and cutting spiral pipe
CN108687161A (en) A kind of splitting Oil cylinder shape tube moulding process and die-changing apparatus
US5020351A (en) Apparatus for flattening irregular circumferential surfaces in spirally formed pipe
US4631998A (en) Mandrel apparatus
CN108972672A (en) A kind of helical bellows tracking fluting perforating device
CN117920901A (en) Processing equipment for steel wire aluminum foil tube
CN217044791U (en) High-precision plate shearing machine capable of preventing plates from shifting
CN210387073U (en) Bending device formed by rolling in wheel rotating mode
CN112406192A (en) Aluminum foil pipeline processing method
US20030230127A1 (en) Perforated spiral pipe
CN112547991A (en) Aluminum foil pipeline cutting mechanism and aluminum foil pipeline processing machine thereof
CN208146750U (en) A kind of angle bead molding machine
CN210452897U (en) Online paper tube production cutting device
CN112547832A (en) Forming coil mechanism and aluminum foil pipeline processing machine thereof
CN211167573U (en) Film winding machine
CN218694383U (en) Full-automatic pipe cutting machine
CN220560296U (en) Blade forming integrated machine of food processing machine

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant