CN105398211B - A kind of film double-sided mould pressing method - Google Patents
A kind of film double-sided mould pressing method Download PDFInfo
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- CN105398211B CN105398211B CN201510873886.5A CN201510873886A CN105398211B CN 105398211 B CN105398211 B CN 105398211B CN 201510873886 A CN201510873886 A CN 201510873886A CN 105398211 B CN105398211 B CN 105398211B
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Abstract
The invention discloses a kind of film double-sided mould pressing methods, the mould pressing method utilizes preceding overturning system and rear overturning system, enable the UV moulding systems of front and rear line and the positive coining face of hot moulding system compression moulded film and reversed coining face, and using regulating system, ensure the pattern exactitude position being embossed on the positive coining face and reversed coining face of film.Registration of the present invention, for film without carrying in mold process, production efficiency is high；Deformation of thin membrane is small in production process, flatness is good, and the film produced can reach high quality requirement.
Description
Technical field
The present invention relates to holographic false proofs and holographic laser to pack, more particularly, to a kind of film double-sided mould pressing method.
Background technology
It is the end of last century to introduce China from the U.S. earliest that holographic laser image technique is applied on plastic coating film
's.Its principle is as follows：Holographic laser image is imaged in photoetching glass coating version, then pass through electricity by the method for taking pictures or photoetching process
Casting copies to hologram image thereon in metallic nickel version, is about then 15~80 μm with holographic laser figure thickness
The metallic nickel version of picture is fitted in as molding version in the roller of holographic laser moulding press, and coated film posts molding what is heated
Passing through in the roller of version, side roller pressurizes to coated film to roller, and the hologram image in molding version is impressed on coated film,
So as to be fabricated to coiled holographic laser (anti-fake) packing plastics film.
However, what extrusion press currently used in the market or UV moulding press were all single use.Operating personnel need to print
When the positive coining face of plastic film and reversely coining face, generally require to use extrusion press and UV moulding press respectively.It is printing
In the process, operating personnel need plastic film being transferred to UV moulding press from extrusion press.And plastic film carrying is cumbersome, often
The printing efficiency of film can be influenced, moreover, in the positive coining face of plastic film and reversed coining face printing holographic pattern, to print
Brush is very high in the positioning accuracy request of the figure of plastic film positive and negative, is stamped in the complete of the forward and reverse coining face of coated film respectively
0.01mm need to be less than by ceasing the site error of image, and this mould pressing method that extrusion press and UV moulding press are molded is used alone
It is difficult to meet technological requirement.
For this reason, it is necessary to study it is a kind of can compression moulded film material forward and reverse coining face simultaneously can exactitude position mould pressing method.
Invention content
The purpose of the present invention is to provide a kind of energy compression moulded film material forward direction coining face and reversely coining faces, and energy is accurate
The mould pressing method of contraposition.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of film double-sided mould pressing method, particularly, includes the following steps：
A) metal moulded board of the volume patch with corresponding figure line information in the roller of UV moulding systems and hot moulding system；Add
The roller of hot hot moulding system makes the temperature of its roller maintain in the range of 100~200 DEG C；The roller of UV moulding systems is cooled down,
The temperature of its roller is made to maintain in the range of 30~60 DEG C；
B) film is mounted in unwinding system, and the instant coining face of film is made to be positive coining face；
C) through unwinding system, film enters preceding overturning system, and the instant coining face of film is overturn by positive coining face to anti-
To coining face；
D system) is overturn before menstruation, and film enters UV moulding systems；UV moulding systems carry out UV to the reversed coining face of film
Molding；
E) through UV moulding systems, film overturns system after entering, the instant coining face of film by reversely imprint face overturn to
Positive coining face；
F system) is overturn after, film enters hot moulding system；The positive coining face of film is carried out in hot moulding system
Hot moulding；
G) through hot moulding system, film enters winding system, is wound.
The principle of the present invention is as follows：
By existing mould pressing process, thin-film material is needed by unwinding system, constant tension system, carry-over pinch rolls system and is set
A series of deflector rolls between them, eccentric roller etc. are put in preceding device, UV moulding systems is then entered back into and is molded.Molding
Thin-film material afterwards will be removed, and be transferred to extrusion press, hot moulding be carried out, so as to complete the two-sided molding of thin-film material.And
In this mould pressing method, for film before UV moulding systems are entered, thin-film material will make the coining face of film by preceding overturning system
It is overturn by positive coining face to reversed coining face；And before thin-film material enters hot moulding system, thin-film material will pass through rear overturning
System makes the coining face of film be overturn by reversely imprinting face to positive coining face.The UV moulding systems of front and rear line installation as a result,
The two-sided molding of same film can be completed with hot moulding system, entire mold process can not carry, and save a large amount of time, have
Effect improves production efficiency.
Above-mentioned described instant coining face, i.e., along film direction of travel, the face on film upward.Therefore, in this mould
In pressure method, the coining face of film is variation.Before entry before overturning system, the positive coining face of film is in top
(direction described herein is using film direction of travel as reference), and the reversed coining face of film is at the bottom, thus at this point, film
Coining face be positive coining face；And enter after preceding overturning system, at the bottom, and film is anti-in the positive coining face of film
Top is in coining face, thus at this point, the instant coining face of film is reversely coining face；And after entering after overturning system,
The positive coining face of film is in top, and the reversed coining face of film is at the bottom, thus at this point, the coining face of film is just
To coining face.
Under normal circumstances, have in UV moulding systems and hot moulding system and an only roller.Moreover, in UV moulding systems
In hot moulding system, it is typically provided and the corresponding rubber roller of roller.When film enters UV moulding systems or hot moulding system
When, which is pressed together in corresponding roller, makes roller that can carry out molding processing to film.
In step C, which can be made of the first deflector roll and the second deflector roll, first deflector roll and the second deflector roll
It is set gradually along film direction of travel, and the first deflector roll is between the roller of UV moulding systems and the roller of hot moulding system simultaneously
Positioned at the lower section of the roller of UV moulding systems；Second deflector roll is between the roller of UV moulding systems and the first deflector roll and positioned at UV
The top of the roller of moulding system.Film is after unwinding system derives, and detour the first deflector roll and the second deflector roll successively, you can
The instant coining face of film is made to be overturn by positive coining face to reversed coining face.
In step E, which can be made of third deflector roll and the 4th deflector roll, the third deflector roll and the 4th deflector roll
It is set gradually along film direction of travel；Third deflector roll is in hot moulding roller farthest away from the side of the rubber roller of hot moulding roller；It should
4th deflector roll is between the roller of UV moulding systems and the second deflector roll and positioned at the top of the second deflector roll.Film is molded from UV
It unites after deriving, successively detour third deflector roll, the 4th deflector roll, you can make the instant coining face of film by reversely imprinting face overturning
To positive coining face.
Because this mould pressing method needs the positive coining face of compression moulded film material and reversed coining face, if the forward and reverse pressure of thin-film material
Hologram pattern on print face can not exactitude position, film will be unable to form corresponding optical effect.Thus, in process of production,
Following process can be increased in step A and step D：In step, it also rolls up to be sticked in the roller of UV moulding systems and has several
Along the moulded board of the set feeler of roller circumferentially；In step D, set feeler is extruded in the reversed coining face upper mold of film
Several calibration points.Meanwhile increase following steps between step E and step F：Step E ＇：System is overturn after, film enters
Regulating system；Regulating system imprints the figure line information on face and reversed coining face according to the calibration point on film to film forward direction
Carry out calibration contraposition.
In above-mentioned steps E ＇, which includes positioning regulating roller, driving device, at least one detection light source and extremely
Few one detection light source receiving device corresponding with detection light source；The driving device be equipped with can be with respect to the second moulding system before and after
Mobile movement portion, positioning regulating roller are mounted in the movement portion；The detection light source receiving device includes receiving transducer and calculating
Machine system, the receiving transducer are connect with computer system data；Driving device is connect with computer system data；The detection light source
The light beam sent out is radiated on film, which passes through calibration point and be received probe and receive, and then the receiving transducer is by light beam
The impingement rate for being incident to receiving transducer is transmitted to computer system, and computer system carries out data processing to the impingement rate, generates
One, for controlling the control signal of driving device working status, controls the movement portion of driving device to move.
When thin-film material is by the rollers of UV moulding systems, positioning contact block will extrude several calibrations on thin-film material
Point.Then, thin-film material enters regulating system, and detection light source sends out light beam and is radiated on film, and light beam passes through calibration point and quilt
Receiving transducer receives, and then light beam is incident to the impingement rate of receiving transducer and is transmitted to computer system by the receiving transducer, calculates
Machine system carries out data processing to the impingement rate.If computer system finds light beam reflectivity not up to 100%, computer system with
Control signal is sent out, control driving device action drives positioning regulating roller to be moved forward and backward with respect to the second moulding system, so as to adjust
The degree of drawing of whole thin-film material makes the light beam that detection light source is sent out that can fall in the center of the calibration point of thin-film material, that is, detects
The reflectivity for the light beam that light source is sent out reaches 100%；If computer system finds that the reflectivity of light beam maintains 100%, driving
Device is failure to actuate, and film enters the second moulding system, presses UV material added to the positive of thin-film material through UV material feeding devices
Behind print face, film enters hot moulding system and carries out second of molding, completes the two-sided molding processing of film.
Registration of the present invention, for film without carrying in mold process, production efficiency is high；Deformation of thin membrane in production process
It is small, flatness is good, the film produced can reach high quality requirement.
Description of the drawings
Fig. 1 is the schematic diagram of moulding press in the embodiment of the present invention 1；
Fig. 2 is the schematic diagram of set feeler in the embodiment of the present invention 2；
Fig. 3 is the schematic diagram that light source and receiving transducer are detected in the embodiment of the present invention 2；
Fig. 4 is the schematic diagram of moulding press in the embodiment of the present invention 2.
Reference sign：1- hot moulding systems；The second rollers of 2-；3-UV moulding systems；The first rollers of 4-；5-, which is unreeled, is
System；6- tension systems；The first deflector rolls of 7-；The second deflector rolls of 8-；9-UV charging systems；The first rubber rollers of 10-；11- cure lamps；12- is shelled
From rubber roller；13- third deflector rolls；The 4th deflector rolls of 14-；15- draws dandy roll；16- draws chill roll；The second rubber rollers of 17-；18- times
Grade tension system；19- winding systems；20- positions regulating roller；21- hydraulic cylinders；22- detects light source；23- receiving transducers；24- determines
Position contact.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment 1：
By taking mould pressing double-face coating PET film as an example, in the present embodiment 1, PET film reversely coats insighted print layer on coining face, should
Know print layer to be used to increase the adhesive force between UV coatings and PET film, know print layer does not have imaging function in itself；PET film forward direction imprints
Contour forging layer is coated on face, which is used to carry holographic picture information.Using moulding press as shown in Figure 1,
It is as follows to be molded specific process：
A the holographic metal nickel plate of patch) is rolled up in the second roller 2 of hot moulding system 1 using 3M strong high-temperatures double faced adhesive tape；
B metal optics nickel plate, the metal light) are rolled up in the first roller 4 of UV moulding systems 3 using 3M strong double-faces glue
It learns and is carved with optical microstructures, such as lenticule in nickel plate；
C) according to the optical microstructures size in optics of metals nickel plate, such as focal length chooses the PET film of suitable thickness；
D the second roller 2) is heated, the temperature of its roller is made to maintain in the range of 100~200 DEG C；The first roller 4 is cooled down, is made
The temperature of its roller is maintained in the range of 30~60 DEG C；
E) film is mounted in unwinding system 5, and the instant coining face of film is made to be positive coining face；
F) start unwinding system 5, film enters tension system 6；By tension system 6, film is in the stable shape of tension
State, overturning system before stably entering；
G) in the present embodiment 1, preceding overturning system is made of the first deflector roll 7 and the second deflector roll 8, first deflector roll 7 and second
Deflector roll 8 is set gradually along film direction of travel, and the first deflector roll 7 is between the first roller 4 and the second roller 2 and positioned at first
The lower section of roller 4；Second deflector roll 8 is between the first roller 4 and the first deflector roll 7 and positioned at the top of the first roller 4；Film according to
The first deflector roll 7 of secondary detour and the second deflector roll 8, make it imprint face immediately and are overturn by positive coining face to reversed coining face；
H system) is overturn before menstruation, and film enters UV moulding systems 3；In UV moulding systems 3, UV charging systems 9 give PET film
Reversed coining face leaching last layer UV coatings；In the present embodiment 1, device common currently on the market can be used in UV charging systems 9；
Then, the first rubber roller 10 is laminated with the first roller 4, and the first roller 4 is made to be molded on the reversed coining face of film；Together
When, the cure lamp 11 positioned at 4 lower section of the first roller carries out instant solidifying and setting to the UV coatings after molding；Then, film passes through
Rubber roller 12 is removed, leaves the first roller 4；
I) film after the molding of UV moulding systems 3 overturns system after entering；In the present embodiment 1, it is rear overturn system by
13 and the 4th deflector roll 14 of third deflector roll is formed, which sets gradually along film direction of travel；The
Three deflector rolls 13 are in hot moulding roller farthest away from the side of the rubber roller of hot moulding roller；4th deflector roll 14 is in the first roller 4
Between the second deflector roll 8 and positioned at the top of the second deflector roll 8；Film detour third deflector roll 13, the 4th deflector roll 14 successively, make it i.e.
When coining face overturn by reversely imprinting face to positive coining face；
J system) is overturn after, film enters trailer system；In trailer system, traction dandy roll 15 and traction chill roll
16 are pressed and PET film are sufficiently cooled, and PET film is made to shape, stablize the version of PET film away from；
K) through trailer system, film enters hot moulding system 1；In hot moulding system 1, pass through the second roller 2 and second
Rubber roller 17 carries out hot moulding to the mode of pressure, the second roller 2 to the coating on the positive coining face of PET film, makes the forward direction of PET film
The focus of lenticule figure that coining face is formed just is fallen on the hologram pattern for reversely imprinting face in PET film, so as to make on PET film
Form unique 3D optical effects；
L) through hot moulding system 1, film enters secondary tension system 18；By secondary tension system 18, film, which is in, to be opened
The stable state of power, stably enters winding system 19；
M) through secondary tension system 18, film enters winding system 19, is wound, and entire production process terminates immediately.
Embodiment 2：
The difference lies in as in Figure 2-4, in the present embodiment 2, used in compression moulded film with embodiment 1 for the present embodiment 2
Moulding press further include a regulating system, which includes positioning regulating roller 20,22 and of the detection light source of hydraulic cylinder 21, one
One with detecting 22 corresponding detection light source receiving device of light source；Hydraulic cylinder 21 is used as driving device, and piston rod is adjusted with positioning
Roller 20 is saved to be connected.The detection light source receiving device includes receiving transducer 23 and computer system, the receiving transducer 23 and computer
System data connects；Hydraulic cylinder 21 is connect also through electronic component with computer system data.
In the present embodiment 2, it is as follows to be molded specific process：
A metal optics nickel plate) is rolled up in the first roller 4 using 3M strong double-faces glue, is carved in the optics of metals nickel plate
Optical microstructures；Meanwhile be sticked in the side of optics of metals nickel plate volume and have the template of several set feelers 24, which touches
The quantity of point 24 is 1；
B) metal optics nickel plate is rolled up in the second roller 2 using 3M strong high-temperatures double faced adhesive tape, in the optics of metals nickel plate
Equally it is carved with optical microstructures；
C) according to the optical microstructures size in optics of metals nickel plate, such as focal length chooses the PET film of suitable thickness；
D the second roller 2) is heated, the temperature of its roller is made to maintain in the range of 100~200 DEG C；The first roller 4 is cooled down, is made
The temperature of its roller is maintained in the range of 30~60 DEG C；
E) film is mounted in unwinding system 5, and the instant coining face of film is made to be positive coining face；
F) start unwinding system 5, film enters tension system 6；By tension system 6, film is in the stable shape of tension
State, overturning system before stably entering；
G) in the present embodiment 1, preceding overturning system is made of the first deflector roll 7 and the second deflector roll 8, first deflector roll 7 and second
Deflector roll 8 is set gradually along film direction of travel, and the first deflector roll 7 is between the first roller 4 and the second roller 2 and positioned at first
The lower section of roller 4；Second deflector roll 8 is between the first roller 4 and the first deflector roll 7 and positioned at the top of the first roller 4；Film according to
The first deflector roll 7 of secondary detour and the second deflector roll 8, make it imprint face immediately and are overturn by positive coining face to reversed coining face；
H system) is overturn before menstruation, and film enters UV moulding systems 3；In UV moulding systems 3, UV charging systems 9 give PET film
Reversed coining face leaching last layer UV coatings；In the present embodiment 1, device common currently on the market can be used in UV charging systems 9；
Then, the first rubber roller 10 is laminated with the first roller 4, and the first roller 4 is made to be molded on the reversed coining face of film,
This simultaneously, the set feeler 24 in the first roller 4 also extrudes several calibration points on the reversed coining face of film；Positioned at first
The cure lamp 11 of 4 lower section of roller carries out instant solidifying and setting to the UV coatings after molding；Then, film is by removing rubber roller 12,
Leave the first roller 4；
I) film after the molding of UV moulding systems 3 overturns system after entering；In the present embodiment 2, it is rear overturn system by
13 and the 4th deflector roll 14 of third deflector roll is formed, which sets gradually along film direction of travel；The
Three deflector rolls 13 are in hot moulding roller farthest away from the side of the rubber roller of hot moulding roller；4th deflector roll 14 is in the first roller 4
Between the second deflector roll 8 and positioned at the top of the second deflector roll 8；Film detour third deflector roll 13, the 4th deflector roll 14 successively, make it i.e.
When coining face overturn by reversely imprinting face to positive coining face；
J system) is overturn after, film enters trailer system；In trailer system, traction dandy roll 15 and traction chill roll
16 are pressed and PET film are sufficiently cooled, and PET film is made to shape, stablize the version of PET film away from；
K) through trailer system, film enters regulating system；In regulating system, the light beam that detection light source 22 is sent out is radiated at
On film, which passes through calibration point and is received probe 23 and receive, and then light beam is incident to reception and visited by the receiving transducer 23
First 23 impingement rate is transmitted to computer system, and computer system carries out data processing to the impingement rate；If computer system is sent out
Existing light beam reflectivity is not up to 100%, and computer system sends out control signal immediately, and control hydraulic cylinder 21 acts, and positioning is driven to adjust
Roller 20 is saved to be moved forward and backward with respect to the second moulding system, so as to adjust the degree of drawing of thin-film material, the light for sending out detection light source 22
The reflectivity that Shu Junneng falls the light beam in the center of the calibration point of thin-film material sending out, detection light source 22 reaches 100%；If meter
The reflectivity of calculation machine system discovery light beam maintains 100%, and hydraulic cylinder 21 is then failure to actuate, and film directly passes through regulating system；
L) system, film enter hot moulding system 1 after the adjustment；In hot moulding system 1, pass through the second roller 2 and second
Rubber roller 17 carries out hot moulding to the mode of pressure, the second roller 2 to the coating on the positive coining face of PET film, makes the forward direction of PET film
The focus of lenticule figure that coining face is formed just is fallen on the hologram pattern for reversely imprinting face in PET film, so as to make on PET film
Form unique 3D optical effects；
M) through hot moulding system 1, film enters secondary tension system 18；By secondary tension system 18, film, which is in, to be opened
The stable state of power, stably enters winding system 19；
N) through secondary tension system 18, film enters winding system 19, is wound, and entire production process terminates immediately.
The better embodiment of only this patent that this specification is enumerated, all institutes under the operation principle and thinking of this patent
The equivalent technologies transformation done is accordingly to be regarded as the protection domain of this patent.
Claims (3)
1. a kind of film double-sided mould pressing method, it is characterized in that：Include the following steps：
A. metal moulded board of the volume patch with corresponding figure line information in the roller of UV moulding systems and hot moulding system；Heating heat
The roller of moulding system makes the temperature of its roller maintain in the range of 100~200 DEG C；The roller of UV moulding systems is cooled down, makes it
The temperature of roller is maintained in the range of 30~60 DEG C；It also rolls up to be sticked in the roller of UV moulding systems and has several along roller circumferential direction
The moulded board of the set feeler of arrangement；
B. film is mounted in unwinding system, and the instant coining face of film is made to be positive coining face；
C. through unwinding system, film enters preceding overturning system, and the instant coining face of film is overturn by positive coining face to reversed pressure
Print face；
D. overturning system, film enter UV moulding systems before menstruation；UV moulding systems carry out UV moldings to the reversed coining face of film；
Set feeler extrudes several calibration points in the reversed coining face upper mold of film；
E. through UV moulding systems, film overturns system after entering, and the instant coining face of film is overturn by reversely imprinting face to forward direction
Coining face；
E ＇ overturn system after, and film enters regulating system；Regulating system imprints film forward direction according to the calibration point on film
Figure line information on face and reversed coining face carries out calibration contraposition；The regulating system includes positioning regulating roller, driving device, extremely
A few detection light source and at least one detection light source receiving device corresponding with detection light source；The driving device is equipped with can
With respect to the movement portion that the second moulding system is moved forward and backward, positioning regulating roller is mounted in the movement portion；The detection light source receives
Device includes receiving transducer and computer system, and the receiving transducer is connect with computer system data；Driving device is with calculating
Machine system data connects；The light beam that the detection light source is sent out is radiated on film, and the light beam passes through calibration point and is received
Probe receives, and the impingement rate that light beam is incident to receiving transducer by the receiving transducer is transmitted to computer system, computer system
Data processing is carried out to the impingement rate, one is generated for controlling the control signal of driving device working status, controls driving device
Movement portion movement；
F. system, film enter hot moulding system after the adjustment；Hot-die is carried out to the positive coining face of film in hot moulding system
Pressure；
G. through hot moulding system, film enters winding system, is wound.
2. film double-sided mould pressing method according to claim 1, it is characterized in that：In step C, the preceding overturning system by
First deflector roll and the second deflector roll are formed；First deflector roll and the second deflector roll are set gradually along film direction of travel, and first leads
Roller is in the lower section of the roller between the roller of UV moulding systems and the roller of hot moulding system and positioned at UV moulding systems；It is described
Second deflector roll is in the top of the roller between the roller of UV moulding systems and the first deflector roll and positioned at UV moulding systems.
3. film double-sided mould pressing method according to claim 1, it is characterized in that：In step E, it is described after overturning system by
Third deflector roll and the 4th deflector roll are formed；The third deflector roll and the 4th deflector roll are set gradually along film direction of travel；Third deflector roll
Hot moulding roller is in farthest away from the side of the rubber roller of hot moulding roller；4th deflector roll be in the rollers of UV moulding systems with
Between second deflector roll and positioned at the top of the second deflector roll.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510873886.5A CN105398211B (en) | 2015-12-01 | 2015-12-01 | A kind of film double-sided mould pressing method |
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| CN201510873886.5A CN105398211B (en) | 2015-12-01 | 2015-12-01 | A kind of film double-sided mould pressing method |
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| CN107160894A (en) * | 2017-05-21 | 2017-09-15 | 山东泰宝包装制品有限公司 | Two-sided opal correspondence is servo-actuated variable film and preparation method thereof |
| CN110614840A (en) * | 2019-10-19 | 2019-12-27 | 苏州印象镭射科技有限公司 | Microstructure copying line intaglio printing press and copying line intaglio printing method thereof |
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| US6684778B2 (en) * | 2001-05-25 | 2004-02-03 | Ryobi, Ltd. | Printing press with a sheet-turning-over-mechanism |
| JP2007008098A (en) * | 2005-07-01 | 2007-01-18 | Koopakku International Kk | Flexographic printing device and flexographic printing method |
| CN201097104Y (en) * | 2007-09-30 | 2008-08-06 | 吴小华 | Full information presser |
| KR20110105869A (en) * | 2009-01-19 | 2011-09-27 | 애버리 데니슨 코포레이션 | Durable in-mold decoration laminates using semi-crystalline polymer as top film |
| CN102806660B (en) * | 2012-08-16 | 2014-10-15 | 上海交通大学 | Device and method for processing polymer film surface microstructure based on roll-to-roll hot rolling |
| CN104608370A (en) * | 2015-02-09 | 2015-05-13 | 上海交通大学 | Roll-to-roll based UV cured polymer film surface microstructure processing system and method |
| CN105313510B (en) * | 2015-11-30 | 2018-07-20 | 佛山市南海区三简包装有限公司 | A kind of novel two-sided moulding press |
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Address after: 528000 One of 13 Fenghuang Avenue, Nanhai National Eco-industrial Demonstration Park, Danzao Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan three Jian Packing Co., Ltd. Address before: 528000 No. 6, C District, Yanbu Lu Bian Industrial Zone, Nanhai District, Foshan, Guangdong. Patentee before: Foshan Nanhai District Sanjan Packing Machinery Co., Ltd. |
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