CN107763475B - Lamp panel and divide board rolling machine of using this lamp panel - Google Patents

Lamp panel and divide board rolling machine of using this lamp panel Download PDF

Info

Publication number
CN107763475B
CN107763475B CN201710959566.0A CN201710959566A CN107763475B CN 107763475 B CN107763475 B CN 107763475B CN 201710959566 A CN201710959566 A CN 201710959566A CN 107763475 B CN107763475 B CN 107763475B
Authority
CN
China
Prior art keywords
roller
lamp panel
flexible lamp
rocker
frame
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
CN201710959566.0A
Other languages
Chinese (zh)
Other versions
CN107763475A (en
Inventor
李政
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.)
Zhongshan Longxin Zhenglong Heavy Industry Machinery Co ltd
Original Assignee
Zhongshan Longxin Zhenglong Heavy Industry Machinery 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 Zhongshan Longxin Zhenglong Heavy Industry Machinery Co ltd filed Critical Zhongshan Longxin Zhenglong Heavy Industry Machinery Co ltd
Priority to CN201710959566.0A priority Critical patent/CN107763475B/en
Publication of CN107763475A publication Critical patent/CN107763475A/en
Application granted granted Critical
Publication of CN107763475B publication Critical patent/CN107763475B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00Lighting devices or systems using a string or strip of light sources
    • F21S4/20Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/22Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape
    • F21S4/24Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports flexible or deformable, e.g. into a curved shape of ribbon or tape form, e.g. LED tapes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/02Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28Traversing devices; Package-shaping arrangements
    • B65H54/2818Traversing devices driven by rod
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/37Tapes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The invention discloses a lamp panel which comprises a coiled flexible lamp panel main body, wherein spiral tool marks are arranged on the flexible lamp panel main body so that the flexible lamp panel main body can be separated into a continuous LED flexible lamp panel, and therefore the separation efficiency of the lamp panel is improved; and a dividing plate winding machine applying the above lamp plate, the dividing plate winding machine comprising: the machine frame is rotatably provided with a roller; the first driver is arranged on the frame and used for driving the roller to rotate; the translation guide mechanism is movably arranged on the frame, is positioned at the rear of the rolling direction of the roller, can reciprocate left and right relative to the roller and is used for guiding the LED flexible lamp panel to move towards the roller; the second driver is arranged on the frame and used for driving the translation guide mechanism to reciprocate left and right; the LED flexible lamp panel can be uniformly wound on the surface of the roller, and the winding efficiency of the automatic equipment is high, and the damage to the electronic element caused by the fact that the lamp panel is easy to bend during manual winding is prevented.

Description

Lamp panel and divide board rolling machine of using this lamp panel
Technical Field
The invention relates to the field of manufacturing of LED lamp strips, in particular to a lamp panel and a split plate winding machine using the lamp panel.
Background
Referring to fig. 4, when an LED flexible light panel is manufactured, a circuit is generally manufactured on a rectangular light panel, and then a plurality of cuts are machined on the rectangular light panel at equal intervals in the width direction to form a plurality of LED flexible light panels 21, in order to realize continuous production, conventionally, the plurality of LED flexible light panels 21 are manually separated one by one, then the plurality of LED flexible light panels 21 are welded into a continuous LED flexible light panel, and then the continuous LED flexible light panel is manually wound on a roller, so that the efficiency of separating the boards is low.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a lamp panel capable of improving the production efficiency of the lamp panel, and a split plate winding machine using the lamp panel, wherein the split plate winding machine can realize split plate and winding functions, and winding is uniform, and damage to electronic components caused by bending of the lamp panel can be prevented.
The invention adopts the technical proposal for solving the technical problems that:
a lamp panel comprises a coiled flexible lamp panel body, wherein spiral tool marks are arranged on the flexible lamp panel body so that the flexible lamp panel body can be separated into a continuous LED flexible lamp panel.
The flexible lamp panel main body is formed by connecting a rectangular lamp panel in a staggered mode end to end, a plurality of LED flexible lamp panels are connected on the rectangular lamp panel side by side through tool marks, and two adjacent LED flexible lamp panels on the flexible lamp panel main body are connected end to form a continuous LED flexible lamp panel.
A divide board rolling machine of using foretell lamp plate includes: the machine frame is rotatably provided with a roller; the first driver is arranged on the frame and used for driving the roller to rotate; the translation guide mechanism is movably arranged on the frame, is positioned at the rear of the rolling direction of the roller, can reciprocate left and right relative to the roller and is used for guiding the LED flexible lamp panel to move towards the roller; and the second driver is arranged on the frame and used for driving the translation guide mechanism to reciprocate left and right.
The split plate winding machine further comprises a machine base, wherein the machine base is hinged to the machine base, and a third driver for driving the machine base to swing up and down is arranged on the machine base.
The translation guiding mechanism comprises a sliding seat which is arranged on the frame in a sliding manner, more than two auxiliary rollers are rotatably arranged on the sliding seat, and grooves which are matched with the width of the LED flexible lamp panel in order to allow the LED flexible lamp panel to pass through are formed in the surfaces of the auxiliary rollers.
The sliding seat is hinged with a double-rocker mechanism, the double-rocker mechanism comprises a first rocker, a second rocker and a connecting rod, the first rocker and the second rocker are hinged to the sliding seat, the connecting rod is used for connecting the first rocker and the second rocker, each auxiliary roller is rotatably arranged on the connecting rod at intervals to form a track line for guiding the LED flexible lamp panel, the sliding seat is provided with an arc-shaped groove, and a bolt penetrates through the arc-shaped groove and is fixedly connected with the first rocker or the second rocker to adjust the movement track of the LED flexible lamp panel.
The machine frame is provided with a first propping column which is propped against one end of a rotating shaft of the roller, the machine frame is movably provided with a second propping column which is propped against the other end of the rotating shaft of the roller, and the second propping column is connected with a propping device which is used for driving the second propping column to prop against the rotating shaft of the roller.
The split plate winding machine also comprises a hot air dehumidifying device which is arranged on the frame, and the hot air exhausting direction of the hot air dehumidifying device faces to the circumferential surface of the roller.
The frame is provided with a static eliminator positioned on one side of the LED flexible lamp panel on the translation guide mechanism.
The beneficial effects of the invention are as follows: the lamp panel comprises a coiled flexible lamp panel main body, wherein spiral tool marks are arranged on the flexible lamp panel main body so that the flexible lamp panel main body can be separated into a continuous LED flexible lamp panel, and therefore the separation efficiency of the lamp panel is improved; and a divide board rolling machine of lamp plate more than using, this divide board rolling machine drive translation guiding mechanism left and right reciprocating motion when driving the cylinder rolling for LED flexible lamp plate can evenly roll in the surface of cylinder, and through the efficient of automation equipment rolling, prevent easy bending lamp plate and cause electronic component's damage when artifical rolling.
Drawings
FIG. 1 is a schematic view of a separator-winder of the present invention;
FIG. 2 is a schematic view of a separator-winder from another view angle;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;
FIG. 4 is a schematic view of a rectangular lamp panel;
fig. 5 is a schematic structural view of a lamp panel according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and the detailed description, but it should be understood that the description of the embodiments below is illustrative and not limiting in any way.
Referring to fig. 5, a lamp panel includes a roll-shaped flexible lamp panel body 20, and a spiral-shaped cutter mark is provided on the flexible lamp panel body 20 so that the flexible lamp panel body 20 can be separated into a continuous LED flexible lamp panel.
As shown in fig. 4, in this embodiment, the flexible light panel main body 20 is formed by connecting a rectangular light panel in a staggered manner end to end, a plurality of LED flexible light panels 21 are connected to the rectangular light panel side by side through tool marks, and two adjacent LED flexible light panels 21 on the flexible light panel main body 20 are connected end to form a continuous LED flexible light panel. In other embodiments, the flexible light panel body 20 may also be formed with spiral cuts directly in the coiled sheet to form a continuous LED flexible light panel.
Referring to fig. 1to 3, a separator-winder to which the above-described lamp panel is applied includes: the device comprises a frame 1, wherein a roller 2 is rotatably arranged on the frame 1; a first driver 3, which is arranged on the frame 1 and is used for driving the roller 2 to rotate; the translation guide mechanism 4 is movably arranged on the frame 1 and positioned at the rear of the rolling direction of the roller 2, can reciprocate left and right relative to the roller 2, and is used for guiding the LED flexible lamp panel to move towards the roller 2; a second driver 5, which is disposed on the frame 1 and is used for driving the translation guiding mechanism 4 to reciprocate left and right. The translation guiding mechanism 4 includes a sliding seat 41 slidably disposed on the frame 1, more than two auxiliary rollers 42 are rotatably disposed on the sliding seat 41, and grooves adapted to the width of the LED flexible light board to allow the LED flexible light board to pass through are disposed on the surface of the auxiliary rollers 42. In the present embodiment, the first driver 3 includes a first motor and a reduction gear set linked with the first motor, the reduction gear set being connected with the rotation shaft of the drum 2; the second driver 5 includes a second motor and a screw rod linked with the second motor, a nut matched with the screw rod is fixedly arranged on the sliding seat 41, and the screw rod is driven to rotate forward or backward by the second motor so as to drive the sliding seat 41 to reciprocate left and right. In other embodiments, the first driver 3 may also be a rotary cylinder, and the second driver 5 may also be a cylinder, and the cylinder directly drives the sliding seat 41 to reciprocate left and right.
When the plate separating and winding machine works, firstly, one free end of the continuous LED flexible lamp plate is separated and wound and fixed on the surface of the roller 2, and the other free end of the continuous LED flexible lamp plate is fixed on the unreeling device, and when the plate separating and winding machine works, plate separating and winding treatment can be simultaneously carried out, so that the production efficiency is improved.
As a preferred embodiment of the present invention, the sliding seat 41 is hinged with a double-rocker mechanism, the double-rocker mechanism includes a first rocker 81 and a second rocker 82 hinged on the sliding seat 41, and a connecting rod 83 for connecting the first rocker 81 and the second rocker 82, each auxiliary roller 42 is rotatably disposed on the connecting rod 83 at intervals to form a track line for guiding the LED flexible light board, in this embodiment, three auxiliary rollers 42 are provided, the LED flexible light board sequentially passes through the grooves of the three auxiliary rollers 42 to form an arc line bending towards the roller 2, which is conducive to smooth transition in the rolling process of the LED flexible light board, an arc slot 411 is formed on the sliding seat 41, and a bolt 43 passes through the arc slot 411 to be connected and fixed with the first rocker 81 or the second rocker 82 to adjust the movement track of the LED flexible light board.
The machine frame 1 is provided with a first jacking column 12 which is abutted against one end of the rotating shaft of the roller 2, the machine frame 1 is movably provided with a second jacking column 13 which is abutted against the other end of the rotating shaft of the roller 2 and can rotate relative to the rotating shaft of the roller 2, and the second jacking column 13 is connected with a jacking device 9 which is used for driving the second jacking column to jack the second jacking column tightly on the rotating shaft of the roller 2. In this embodiment, the tightening device 9 is a screw-nut mechanism, and the screw is rotated to drive the nut to tighten the second tightening post 13, and in other embodiments, the tightening device 9 may be an air cylinder. Further, the split plate winding machine further comprises a machine base 6, the machine frame 1 is hinged to the machine base 6, and a third driver 7 for driving the machine frame 1 to swing up and down is arranged on the machine base 6. The user can adjust the height of cylinder 2 for ground according to the thickness of the flexible lamp plate of LED of rolling as required to make the uninstallation and the installation of cylinder more convenient.
Preferably, the split plate winding machine further comprises a hot air dehumidifying device 10 arranged on the frame 1, wherein the hot air exhausting direction of the hot air dehumidifying device faces to the circumferential surface of the roller 2, so that moisture on the surface of the LED flexible lamp strip can be dried.
The frame 1 is provided with a static eliminator 11 positioned on one side of the LED flexible lamp panel on the translation guide mechanism 4, and the static eliminator 11 can remove static on the lamp panel before winding, so that short circuit of a circuit on the lamp panel caused by accumulation of static is prevented.
The split plate winding machine can be used as a common winding machine, is not limited to winding the lamp panel shown in fig. 4, and can also be used for winding core wires or lamp strip finished products and the like.
The foregoing is merely a preferred embodiment of the present invention, and is not limited to the above specific embodiment, as long as the technical solution for achieving the object of the present invention by substantially the same means falls within the scope of the present invention.

Claims (4)

1. Be applied to minute board rolling machine of lamp plate, the lamp plate includes the flexible lamp plate main part of roll-type, be provided with spiral tool mark in the flexible lamp plate main part so that this flexible lamp plate main part can divide into a continuous LED flexible lamp plate, the lamp plate main part is formed by a rectangle lamp plate dislocation ground head and tail connection, is connected with a plurality of LED flexible lamp plates side by side through the tool mark on this rectangle lamp plate, and adjacent two LED flexible lamp plates head and tail in the flexible lamp plate main part link to each other in order to form continuous LED flexible lamp plate, its characterized in that includes:
The machine frame is rotatably provided with a roller;
the first driver is arranged on the frame and used for driving the roller to rotate;
The translation guide mechanism is movably arranged on the frame, is positioned at the rear of the rolling direction of the roller, can reciprocate left and right relative to the roller and is used for guiding the LED flexible lamp panel to move towards the roller;
The second driver is arranged on the frame and used for driving the translation guide mechanism to reciprocate left and right;
The translation guide mechanism comprises a sliding seat which is arranged on the rack in a sliding manner, more than two auxiliary rollers are rotatably arranged on the sliding seat, and grooves which are matched with the widths of the LED flexible lamp panels in order to allow the LED flexible lamp panels to pass through are formed in the surfaces of the auxiliary rollers; the sliding seat is hinged with a double-rocker mechanism, the double-rocker mechanism comprises a first rocker, a second rocker and a connecting rod, the first rocker and the second rocker are hinged on the sliding seat, the connecting rod is used for connecting the first rocker and the second rocker, each auxiliary roller is rotationally arranged on the connecting rod at intervals to form a track line for guiding the LED flexible lamp panel, the sliding seat is provided with an arc-shaped groove, and a bolt penetrates through the arc-shaped groove and is fixedly connected with the first rocker or the second rocker to adjust the movement track of the LED flexible lamp panel; the machine frame is hinged to the machine frame, and a third driver for driving the machine frame to swing up and down is arranged on the machine frame.
2. A split winder as claimed in claim 1, wherein:
The machine frame is provided with a first propping column which is propped against one end of a rotating shaft of the roller, the machine frame is movably provided with a second propping column which is propped against the other end of the rotating shaft of the roller, and the second propping column is connected with a propping device which is used for driving the second propping column to prop against the rotating shaft of the roller.
3.A split winder as claimed in claim 1 or claim 2, wherein:
Comprises a hot air dehumidifying device which is arranged on the frame, and the hot air exhausting direction is towards the circumferential surface of the roller.
4. A split winder as claimed in claim 1 or claim 2, wherein:
the frame is provided with a static eliminator positioned on one side of the LED flexible lamp panel on the translation guide mechanism.
CN201710959566.0A 2017-10-16 2017-10-16 Lamp panel and divide board rolling machine of using this lamp panel Active CN107763475B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710959566.0A CN107763475B (en) 2017-10-16 2017-10-16 Lamp panel and divide board rolling machine of using this lamp panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710959566.0A CN107763475B (en) 2017-10-16 2017-10-16 Lamp panel and divide board rolling machine of using this lamp panel

Publications (2)

Publication Number Publication Date
CN107763475A CN107763475A (en) 2018-03-06
CN107763475B true CN107763475B (en) 2024-06-07

Family

ID=61268283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710959566.0A Active CN107763475B (en) 2017-10-16 2017-10-16 Lamp panel and divide board rolling machine of using this lamp panel

Country Status (1)

Country Link
CN (1) CN107763475B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108423465B (en) * 2018-06-04 2024-05-03 广东顺德华焯机械科技有限公司 LED lamp area divides strip equipment

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080347A (en) * 1989-06-23 1992-01-14 Komori Corporation Sheet paper feeder
DE10155949C1 (en) * 2001-11-14 2002-11-28 Faurecia Autositze Gmbh & Co Middle seat for a motor vehicle comprises a seat part having an underside designed as a table, and a locking bar lying on a seat locking curve of a rear rocker in the seat position
CN204667778U (en) * 2015-06-03 2015-09-23 江苏工程职业技术学院 A kind of undercarriage jack instructional device
CN105125285A (en) * 2015-07-02 2015-12-09 贺石生 Movable three-dimensional rocker arc-shaped guide spinal puncture assistor and use method of movable three-dimensional rocker arc-shaped guide spinal puncture assistor
CN204894829U (en) * 2015-08-28 2015-12-23 榆林学院 Automatic machine of stamping
CN105692309A (en) * 2016-02-04 2016-06-22 四川汇利实业有限公司 Slitting machine for producing medicinal PVC/PCTFE composite sheets
CN106219298A (en) * 2016-08-30 2016-12-14 杭州康奋威科技股份有限公司 Conductive tape transmitting device
CN205855541U (en) * 2016-07-26 2017-01-04 深圳市易通自动化设备有限公司 A kind of soft light bar tape divider
CN106764563A (en) * 2017-01-20 2017-05-31 深圳市众耀光电有限公司 A kind of flexible LED rope light board separating device and point plate technique
CN207349857U (en) * 2017-10-16 2018-05-11 中山市龙鑫政龙重工机械有限公司 Lamp plate and board separating and winding machine applying same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616791A (en) * 1984-03-31 1986-10-14 Vernon Harvey B W Irrigation or other machine having a rotatable drum carrying a hose or other flexible element wound thereon
US8724216B2 (en) * 2010-12-22 2014-05-13 The United States Of America As Represented By The Secretary Of The Army Dual band infrared continuous zoom lens
CN102590990B (en) * 2012-03-30 2013-10-30 昆明物理研究所 Three-component medium wave infrared 30x continuous zooming optical system
CN102590991B (en) * 2012-04-01 2013-10-30 昆明物理研究所 U-shaped folded medium wave infrared 30-times continuous zooming optical system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5080347A (en) * 1989-06-23 1992-01-14 Komori Corporation Sheet paper feeder
DE10155949C1 (en) * 2001-11-14 2002-11-28 Faurecia Autositze Gmbh & Co Middle seat for a motor vehicle comprises a seat part having an underside designed as a table, and a locking bar lying on a seat locking curve of a rear rocker in the seat position
CN204667778U (en) * 2015-06-03 2015-09-23 江苏工程职业技术学院 A kind of undercarriage jack instructional device
CN105125285A (en) * 2015-07-02 2015-12-09 贺石生 Movable three-dimensional rocker arc-shaped guide spinal puncture assistor and use method of movable three-dimensional rocker arc-shaped guide spinal puncture assistor
CN204894829U (en) * 2015-08-28 2015-12-23 榆林学院 Automatic machine of stamping
CN105692309A (en) * 2016-02-04 2016-06-22 四川汇利实业有限公司 Slitting machine for producing medicinal PVC/PCTFE composite sheets
CN205855541U (en) * 2016-07-26 2017-01-04 深圳市易通自动化设备有限公司 A kind of soft light bar tape divider
CN106219298A (en) * 2016-08-30 2016-12-14 杭州康奋威科技股份有限公司 Conductive tape transmitting device
CN106764563A (en) * 2017-01-20 2017-05-31 深圳市众耀光电有限公司 A kind of flexible LED rope light board separating device and point plate technique
CN207349857U (en) * 2017-10-16 2018-05-11 中山市龙鑫政龙重工机械有限公司 Lamp plate and board separating and winding machine applying same

Also Published As

Publication number Publication date
CN107763475A (en) 2018-03-06

Similar Documents

Publication Publication Date Title
CN104261184B (en) A kind of sticking two-faced adhesive tape carrying device automatically
CN110950024A (en) Material guiding and conveying mechanism of cylindrical plate turnover machine
CN107763475B (en) Lamp panel and divide board rolling machine of using this lamp panel
CN110883148B (en) Bending method for manufacturing and processing electric power electrical cabinet
CN209986149U (en) Automatic straightening device for metal wires
CN103934870A (en) Felt-board machine tail saw device
CN207983587U (en) A kind of timber longitudinal grooved machine
CN113442232B (en) Triangular batten processing device for wood product production
CN207349857U (en) Lamp plate and board separating and winding machine applying same
CN113172775A (en) Building material and processing system and processing method thereof
CN110900718A (en) Plank cutting device
CN215749688U (en) Slitting device is used in slab core production
CN205394763U (en) Log rotary -cut mechanism
CN211362633U (en) Automatic positioning and punching device for wood board
CN220218715U (en) PVC banding strip production cuts equipment
CN216098011U (en) Corner burr remove device of band steel processing
CN218932700U (en) Curtain rope cloth cutting machine for rubber joint
CN215467770U (en) Cable cutting device
CN219916805U (en) Rubber sleeve machine for automobile wire harness production and processing
CN219169669U (en) Drilling device of brake adjusting arm
CN219729994U (en) Paper rolling structure and device
CN215511175U (en) Trimming device for wood plate edge sealing strip
CN213703792U (en) Bamboo removes blue or green device
CN220681007U (en) Hot melt adhesive cutting equipment
CN215037997U (en) Efficient cutting equipment for composite polyurethane board

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant