CN110578274A - Wet blank transfer method and device for plant fiber molding - Google Patents
Wet blank transfer method and device for plant fiber molding Download PDFInfo
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- CN110578274A CN110578274A CN201910940140.XA CN201910940140A CN110578274A CN 110578274 A CN110578274 A CN 110578274A CN 201910940140 A CN201910940140 A CN 201910940140A CN 110578274 A CN110578274 A CN 110578274A
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- transfer
- wet blank
- die
- fixed
- sliding column
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- 239000000835 fiber Substances 0.000 title claims abstract description 46
- 238000000465 moulding Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims abstract description 31
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims description 18
- 238000000967 suction filtration Methods 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 2
- 238000007731 hot pressing Methods 0.000 description 34
- 239000003921 oil Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J5/00—Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch-moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention relates to a method and a device for manufacturing a plant fiber product comprising paper pulp by adopting a molding mode. The technical scheme is as follows: a wet-green transfer method for plant fiber molding, comprising: 1) the suction filter forming die is used for preparing the slurry into a wet blank of a product, and the wet blank transfer die is used for sucking the wet blank from the suction filter forming die and moving the wet blank out of the suction filter forming die; 2) a sliding column is arranged above the suction filter forming die, and the wet blank transfer die is fixed at one end of the sliding column, or the wet blank transfer die is fixed at one end of the sliding column through a wet blank transfer die mounting plate and is driven by the sliding column to perform vertical linear motion; 3) 2 or more than 2 transfer mould linear guide rails are fixed on the sliding column, the transfer sliding block is fixed on the upper rack, and the sliding column can vertically slide on the transfer sliding block through the transfer mould linear guide rails. The method and the device can ensure high moving precision when the wet blank transfer die moves up and down in a long distance, and the wet blank transfer die is accurately positioned in the height direction.
Description
Technical Field
The invention relates to a method and a device for manufacturing a plant fiber (plant fiber for short) product comprising paper pulp by adopting a molding forming mode; is suitable for manufacturing disposable planar or non-planar plant fiber molding products, in particular disposable non-planar paper products; such as plant fiber tableware, plant fiber trays, plant fiber industrial shockproof pads and packaging holders or packaging boxes, disposable non-planar plant fiber decorative three-dimensional wallboards (or called plant fiber three-dimensional wallpaper or pulp molding three-dimensional wallpaper), delicate small-angle plant fiber industrial packaging holders and packaging box products, planar and three-dimensional products made by molding a mixture of starch and plant fiber or foamed planar and three-dimensional products made by molding a mixture of starch and plant fiber, and all disposable plant fiber molded products, which are collectively called plant fiber molded products hereinafter.
background
In the existing plant fiber molding machine, slurry is sucked, filtered and molded in a suction filter molding die in a suction filter molding device to prepare a wet blank, a wet blank transferring device is arranged above the suction filter molding device, a wet blank transferring die in the wet blank transferring device can move up and down, the wet blank is moved out of the suction filter molding die and transferred to the next procedure for drying, and the wet blank transferring die is dragged by an oil cylinder.
The prior wet blank transfer device for molding plant fibers has the following problems:
The wet blank transfer die is driven by an oil cylinder in a vertical moving mode, and the problem that when an oil cylinder piston sealing ring is abraded, the oil cylinder leaks internally to cause the wet blank transfer die to slide down out of control, and the abrasion of the piston sealing ring in the working process is inevitable, so that great trouble is brought to production and the problem cannot be solved in the industry until now.
2, the wet blank transfer die cannot be accurately matched with the suction filter forming die, the error of matched die is large each time, the wet blank is often torn, or the wet blank cannot be normally transferred to the wet blank transfer die to realize normal transfer.
3, when the wet blank transfer die and the suction filter forming die are closed, the impact is too large, and the positioning of the wet blank transfer die in the vertical direction is difficult to realize.
4, when the wet blank is transferred to the hot-pressing die by the wet blank transfer die, the relative distance between the wet blank transfer die and the hot-pressing die cannot be controlled due to stroke overshoot, fibers around the wet blank splash outside a cavity of the hot-pressing die when the wet blank is transferred, a large amount of burrs are generated, and the fibers splashed onto the hot-pressing die become coke and pollute the hot-pressing die due to the fact that the fibers cannot be removed in time.
And 5, the oil cylinder pushes the wet blank transfer mold to frequently generate a creeping phenomenon when moving up and down, the movement often generates shake and is not stable, and after the sealing of the piston rod of the oil cylinder is damaged, hydraulic oil in the oil cylinder leaks and often pollutes slurry.
6, the up-and-down moving speed of the wet blank transfer die is very slow, and the up-and-down moving distance of the wet blank transfer die is very long, so that the yield is greatly influenced.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provide a wet blank transfer method and a device of a plant fiber molded product, which ensure that a wet blank transfer die does not slide down out of control due to the abrasion of a piston seal ring.
The technical scheme provided by the invention is as follows:
A wet-green transfer method for plant fiber molding, comprising:
1) The suction filter forming die is used for preparing the slurry into a wet blank of a product, and the wet blank transfer die is used for sucking the wet blank from the suction filter forming die and moving the wet blank out of the suction filter forming die;
2) A slide column capable of vertically sliding up and down is arranged above the suction filter forming die, a wet blank transfer die is fixed at one end of the slide column, or the wet blank transfer die is fixed at one end of the slide column through a wet blank transfer die mounting plate, and the wet blank transfer die is driven to vertically move linearly by the slide column which is positioned on the upper frame and can vertically slide up and down relative to the upper frame;
3) 2 or more than 2 transfer die linear guide rails are fixed on the sliding column, the transfer sliding block is fixed on the upper rack, and the sliding column can vertically slide on the transfer sliding block through the transfer die linear guide rails; or the sliding column is fixed with the transfer sliding block, the transfer mould linear guide rail is vertically fixed on the upper rack, and the sliding column can vertically slide up and down on the transfer mould linear guide rail through the transfer sliding block, so that the wet blank transfer mould fixed at one end of the sliding column can be directly and accurately matched with the suction filtration forming mould and opened.
balancing the gravity of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column by using a balancing cylinder; the balance cylinder is fixed on the upper frame, a piston rod of the balance cylinder is connected with the sliding column, and the pulling force of the balance cylinder is matched with the weights of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column.
The transfer sliding blocks are divided into two or more groups which are fixed on the upper frame from top to bottom, the adjacent two groups of transfer sliding blocks are separated by a certain distance, and the transfer mould linear guide rails fixed on the sliding columns slide up and down on the two or more groups of transfer sliding blocks; or, two or more groups of upper and lower transfer sliding blocks which are fixed on the sliding column and have certain distance are vertically slid on the transfer mould linear guide rail which is vertically fixed on the upper machine frame.
A rack is fixed on the sliding column, a gear meshed with the rack is positioned on the upper rack, and a servo motor fixed on the upper rack drives the sliding column to vertically and linearly move through a driving gear; or a screw rod and a servo motor are fixed on the sliding column, a nut meshed with the screw rod is fixed on the upper rack, and the servo motor drives the sliding column to vertically and linearly move through driving the screw rod; or a synchronous belt is fixed on the sliding column, a synchronous belt wheel and a servo motor are positioned on the upper rack, and the servo motor drives the sliding column to vertically and linearly move by driving the synchronous belt wheel.
A plant fiber molding wet blank transfer device is characterized in that: the wet blank transfer device comprises a wet blank transfer die, a sliding column which is positioned on the upper frame and can vertically slide up and down relative to the upper frame, and a servo motor driving device which drives the wet blank transfer die and the sliding column to move up and down together; the wet blank transfer die is fixed at one end of the sliding column, or the wet blank transfer die is fixed at one end of the sliding column through a wet blank transfer die mounting plate;
a transfer die linear guide rail is also fixed on the sliding column, a transfer sliding block is fixed on the upper rack, and the sliding column can vertically slide on the transfer sliding block through the transfer die linear guide rail; or the sliding column is fixed with the transfer sliding block, the transfer mould linear guide rail is vertically fixed on the upper rack, and the sliding column can vertically slide up and down on the transfer mould linear guide rail through the transfer sliding block so as to realize accurate up-and-down linear motion of the sliding column in the vertical direction, thereby realizing accurate mould closing and opening of the wet blank transfer mould fixed at one end of the sliding column and the suction filter forming mould directly.
The upper frame is fixed with a balance cylinder, a piston rod of the balance cylinder is connected with the sliding column, the axes of the piston rod and the sliding column are parallel to each other, and the pulling force of the balance cylinder is matched with the weights of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column so as to balance the weights of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column through the balance cylinder.
the servo motor driving device comprises a rack vertically fixed on the sliding column, a gear fixed on the rack and meshed with the rack, and a servo motor fixed on the rack and driving the gear, wherein the servo motor drives the rack and the sliding column to move up and down together through the driving gear; or the servo motor driving device comprises a screw nut pair mechanism arranged between the rack and the sliding column and a servo motor driving the screw nut pair mechanism, and the servo motor drives the screw nut pair to drive the sliding column to move up and down.
The transfer sliding blocks are divided into two or more groups which are fixed on the upper frame from top to bottom, the adjacent two or more groups of transfer sliding blocks are separated by a certain distance, and the transfer mould linear guide rail fixed on the sliding column can slide up and down on the two or more groups of transfer sliding blocks; or, two or more groups of upper and lower transfer sliding blocks which are fixed on the sliding column and are separated by a certain distance slide up and down on a transfer mould linear guide rail which is vertically fixed on the upper frame.
The number of the transfer mould linear guide rails fixed on the sliding column is 2 or more than 2.
The working principle of the invention is as follows: the wet blank transfer die is fixed on the sliding column, and the sliding column fixed with the linear guide rail of the transfer die slides on the transfer sliding block fixed on the upper rack, so that the wet blank transfer die can accurately and stably move up and down; or the wet blank transfer mold moves up and down linearly by the sliding column fixed with the transfer sliding block and moving up and down along the linear track vertically fixed on the upper frame; the weight of the wet blank transfer die and its accessories is also overcome by the balancing cylinder. The guiding precision of the wet blank transfer die during up-and-down movement is ensured, the wet blank transfer die is free to move up and down, the up-and-down rapid movement is realized, and an oil cylinder is not used for driving the wet blank transfer die; therefore, the risk of the wet blank transfer mold out of control and sliding down caused by abrasion of a piston sealing ring of the oil cylinder is avoided, the wet blank transfer period is shortened, the yield and the quality of products can be greatly improved, and the hidden danger that the wet blank is polluted by hydraulic oil is also solved.
The invention has the beneficial effects that: the wet blank transfer mold driven by the sliding column moves up and down, and the weight of the wet blank transfer mold and accessories thereof is overcome by the balance cylinder or the weight balance block of the transfer mold with certain weight. In addition, the following beneficial effects are also achieved: the wet blank transfer die comprises a wet blank transfer die mounting plate, a wet blank transfer die, a transfer die linear guide rail, a sliding column, a transfer die linear guide rail, a positioning block and a positioning block, wherein the wet blank transfer die mounting plate and the wet blank transfer die are directly driven by the sliding column provided with the transfer die linear guide rail to vertically move up and down; therefore, the parallelism between the wet blank transfer mold and the suction filter forming mold can be ensured in the whole up-and-down moving process, and the quality and the qualification rate of products can be greatly improved; 2, the driving slide column of the servo motor moves stably, the positioning is accurate, the running speed is high, the whole forming period can be greatly shortened, and the yield is increased; 3, the problem that the wet blank is polluted by oil is solved.
Drawings
Fig. 1 is a schematic view of a plant fiber molding machine including a wet mat transfer device 2 according to the present invention.
Fig. 1.1 is a schematic view of a plant fiber molding machine including a wet body transfer device 2 according to the present invention, in which a balance cylinder is used to balance the weight of a wet body transfer die, a wet body transfer die mounting plate, and a slide.
Fig. 2 is a schematic structural view of a fully automatic double hot-pressing plant fiber molding machine including the wet blank transfer device 2 according to the present invention.
Fig. 2.1 is a schematic structural view of a fully automatic single hot-press plant fiber molding machine comprising a wet blank transfer device 2 according to the present invention.
Fig. 3 is an enlarged view of a schematic view of the structure of the wet green transfer apparatus of the present invention.
Fig. 3.1 is an enlarged view of the schematic structure of the slide of the green compact transfer device according to the invention.
Fig. 3.2 is a schematic sectional structure view along the direction a-a of fig. 3.1.
Fig. 3.3 is an enlarged view of the schematic structural view of the green compact transfer apparatus of the present invention, and this view shows that the transfer slide 2.5 is fixed to the slide 2.3, the transfer mold linear guide 2.4 is vertically fixed to the upper frame 3, and the slide 2.3 moves linearly up and down.
The reference numbers in the figures illustrate:
1-suction filtration forming device; 1.1-suction filtration forming die; 1.2-slurry tank; 2-a wet blank transfer device; 2.1-wet blank transfer mold; 2.2-mounting plate of wet blank transfer mould; 2.3-sliding column; 2.4-transfer mould linear guide; 2.5-transfer the slide; 2.6-transferring the weight balance of the mold; 2.7-balanced linear guide; 2.8-balance slide block; 2.9-weight balancing connecting wires (or chains); 2.10-fixed pulley (or sprocket); 2.11-1-rack; 2.11-2-gear; 2.12-servo motor; 2.13-balance cylinder; 3, mounting a frame; 4-lower the frame; 5-a pull rod; 6.1-left hot pressing and shaping device; 6.1 a-left hot pressing lower die; 6.1 b-left hot-pressing upper die; 6.2-right hot pressing and shaping device; 6.2 a-right hot pressing lower die; 6.2 b-right hot pressing upper die;
Detailed Description
The idea of the invention is as follows: the sliding column 2.3 fixed with the linear guide rail 2.4 of the transfer mold is adopted to drive the wet blank transfer mold 2.1 to vertically move up and down, and the sliding column 2.3 is fixed at the central position of the wet blank transfer mold 2.1, so that the up-and-down movement precision of the wet blank transfer mold can be ensured, the friction resistance of the up-and-down movement of the wet blank transfer mold 2.1 is reduced, the possibility of quick up-and-down movement is provided, meanwhile, the gravity center of the wet blank transfer mold is ensured not to deviate from the central line of the sliding column 2.3, the parallelism of the wet blank transfer mold and the suction filter mold is ensured, and the up-and-down movement stability and the positioning precision of the wet blank transfer mold 2.1 are improved. The linear guide rail 2.4 of the transfer mould fixed on the sliding column 2.3 is guided by 2 (or more) groups of transfer sliding blocks 2.5 which are vertically separated by a certain distance, so that the vertical movement precision and the operation stability of the sliding column 2.3 can be completely ensured, and the accuracy and the vertical movement stability of the mould closing of the wet blank transfer mould 2.1 and a hot-pressing mould are ensured. The servo motor drives the sliding column 2.3 and the wet blank transfer die 2.1 to move up and down through the transmission of a gear rack or the transmission of a screw pair of a lead screw, so that the up-and-down movement stability and the up-and-down positioning accuracy of the wet blank transfer die 2.1 are greatly improved; the drive of the servo motor can make the wet blank transfer mould 2.1 move accurately and quickly, shorten the period of wet blank transfer and greatly improve the product yield. And the quality of the product can be greatly improved; and the problem that the wet blank is polluted by hydraulic oil is also solved.
Because the wet blank transfer mould and its accessories have a certain weight to produce pull-down gravity, it can produce large downward pulling force, it is the power factor of the wet blank transfer mould which is out of control and can slide down, and it becomes the strong resistance of servo motor driving wet blank transfer mould to move upwards. Therefore, the power factor that the wet blank transfer die is out of control and slides down due to the weight of the wet blank transfer die and accessories thereof is completely eliminated; the wet blank transfer die driven by the servo motor with the brake driving slide column 2.3 can completely ensure that the wet blank transfer die does not lose control and slide down.
the following further description is made with reference to the embodiments shown in the drawings.
Examples
As shown in figure 1, the plant fiber molding machine comprises a suction filtration molding device 1, a wet blank transfer device 2 and a frame (an upper frame 3, a lower frame 4 and a pull rod 5). The suction filtration forming device 1 comprises a suction filtration forming die 1.1 and a slurry tank 1.2, wherein the suction filtration forming die 1.1 sucks slurry in the slurry tank 1.2 in vacuum to prepare the slurry into a wet blank; the frame consists of a pull rod 5, a lower frame 4 and an upper frame 3, wherein the upper frame 3 is fixed on the lower frame 4 by the pull rod 5, so that the upper frame 3 and the lower frame 4 keep a certain distance; the suction filter forming device 1 is arranged in the lower frame 4, the wet blank transfer device 2 is positioned above the suction filter forming device 1, and the wet blank transfer die 2.1 of the wet blank transfer device 2 can vertically move up and down so as to move out the wet blank in the suction filter forming die 1.1 from the suction filter forming die 1.1. After the wet blank is manufactured in the suction filter forming die 1.1, the wet blank transfer die 2.1 vertically moves downwards to be accurately matched with the suction filter forming die 1.1, during die matching, the wet blank transfer die 2.1 is communicated with vacuum to generate negative pressure, the wet blank in the suction filter forming die 1.1 is sucked up, then the wet blank transfer die 2.1 drives the wet blank to vertically move upwards, the wet blank is moved out from the suction filter forming die 1.1 and is sent to the next procedure for drying or other treatment. Because the wet blank is not solidified and shaped, in the process of transferring the wet blank, if the mold closing precision of the wet blank transfer mold 2.1 and the suction filter forming mold 1.1 is not high or the wet blank transfer mold 2.1 is unstable in moving up and down, the wet blank is easy to damage and generate cracks. Therefore, the wet blank transfer die 2.1 moves up and down to accurately close the die 1.1 of the suction filter forming die 1 by moving the wet blank transfer die 2.1 vertically downwards; 2, the wet blank transfer die 2.1 vertically moves up and down stably, the displacement is accurate, and the speed switching is stable; 3, the sliding column 2.3 is fixed at the central position of the wet blank transfer mould 2.1, so as to avoid the phenomenon that the wet blank transfer mould is not parallel to the suction filter mould due to the unbalance of the wet blank transfer mould caused by the gravity center of the wet blank transfer mould deviating from the central line of the sliding column 2.3, and 4, the wet blank transfer mould 2.1 can stably and accurately stay at a certain specified position in the vertical direction. The performance of the green compact transfer apparatus 2 is in accordance with the above requirements.
As shown in fig. 3 and 3.1, the wet blank transfer device 2 includes a wet blank transfer die 2.1, a wet blank transfer die mounting plate 2.2, a slide column 2.3, and a servo motor driving device 2.11 for driving the wet blank transfer die 2.1 and the slide column 2.3 to move up and down.
As shown in fig. 1, 2 and 2.1, a slide column 2.3 is positioned on the upper frame 3 and right above the suction filter forming device 1, the slide column 2.3 can vertically slide up and down relative to the upper frame 3, a wet blank transfer mold 2.1 is fixed on a wet blank transfer mold mounting plate 2.2, a wet blank transfer mold mounting plate 2.2 for fixing the wet blank transfer mold 2.1 is fixed at one end of the slide column 2.3, and the wet blank transfer mold 2.1 can also be directly fixed at one end of the slide column 2.3 without the wet blank transfer mold mounting plate 2.2, but the gravity center of the wet blank transfer mold is coincident with the center line of the slide column 2.3.
As shown in fig. 1, 3 and 3.1, a transfer mold linear guide 2.4 capable of sliding up and down on a transfer slide block 2.5 is arranged on a slide column 2.3, and the transfer slide block 2.5 is fixed on an upper frame 3. The transfer die linear guide 2.4 is a linear guide, and the transfer slide block 2.5 and the transfer die linear guide 2.4 perform relative linear sliding. The sliding column 2.3 can move linearly up and down on a transfer slide block 2.5 fixed on the upper frame by a transfer mould linear guide rail 2.4. The sliding column 2.3 with good guidance quality ensures the movement precision of the wet blank transfer mould 2.1 when moving up and down, and the wet blank transfer mould 2.1 can stably vertically move up and down in a straight line under the guidance and the drive of the sliding column 2.3; the up-and-down linear sliding between the transfer mould linear guide rail 2.4 and the transfer slide block 2.5 reduces the friction resistance of the up-and-down motion of the wet blank transfer mould 2.1, and provides possibility for rapid and stable up-and-down motion.
as shown in fig. 3.3, the linear movement between the transfer slide 2.5 and the transfer mould linear guide 2.4 is relative. Conversely, the transfer die linear guide 2.4 is fixed on the upper frame 3, and the transfer slide block 2.5 is arranged on the slide column 2.3, so that the slide column 2.3 can move linearly up and down along the transfer die linear guide 2.4 through the transfer slide block 2.5.
in order to increase the guiding effect and stability of the sliding column 2.3, as shown in fig. 3, 3.1 and 3.3, the transfer sliders 2.5 are divided into two or more groups, the two or more groups of adjacent transfer sliders 2.5 are separated by a certain distance, and the transfer mold linear guide rails 2.4 fixed on the sliding column 2.3 slide up and down on the two or more groups of upper and lower transfer sliders 2.5 fixed on the frame; or, two or more groups of upper and lower transfer sliders 2.5 fixed on the sliding column 2.3 at a certain distance slide up and down on a transfer mold linear guide rail 2.4 fixed on the frame; therefore, the guidance of the sliding column 2.3 is greatly improved, and the stability of the up-and-down movement and the accuracy of up-and-down positioning of the wet blank transfer die 2.1 are realized.
The wet blank transfer mold 2.1 (or the wet blank transfer mold mounting plate 2.2 is added) has certain weight, the wet blank transfer mold 2.1 is driven to vertically move up and down by the sliding column 2.3 which is fixed with the transfer mold linear guide rail 2.4, the sliding column 2.3 is fixed at the central position of the wet blank transfer mold 2.1, the gravity center of the wet blank transfer mold does not deviate from the central line of the sliding column 2.3, the phenomenon that the wet blank transfer mold is not parallel to the suction filter mold due to the fact that the wet blank transfer mold loses balance because the gravity center deviates from the central line of the sliding column 2.3 is avoided, and therefore the parallelism of the wet blank transfer mold and the suction filter mold is fully ensured structurally. Therefore, the slide column 2.3 should be arranged directly above the suction mould.
the wet blank transfer die 2.1 (or the wet blank transfer die mounting plate 2.2 added) and the slide 2.3 have a certain weight, and the weight force generated by the weight is applied to the slide 2.3 and the wet blank transfer die 2.1 and becomes a resistance to the vertical upward movement of the wet blank transfer die 2.1. In order to overcome the gravity, a balance cylinder is specially arranged to balance the gravity of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column, as shown in fig. 1.1, a balance cylinder 2.13 is fixed on the upper frame 3, a piston rod of the balance cylinder 2.13 is connected with the sliding column 2.3, the axes of the piston rod and the sliding column are parallel, and the pulling force of the balance cylinder 2.13 is matched with the weight of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column. So as to realize the tension of the balance cylinder 2.13 to balance the gravity of the wet blank transfer die 2.1, the sliding column 2.3 and the wet blank transfer die mounting plate 2.2.
A transfer die weight counterbalance 2.6 may also be employed to balance the weight of the wet blank transfer die, wet blank transfer die mounting plate and slide post. As shown in fig. 1, 2 and 3, a set of fixed pulley (or sprocket) 2.10 is disposed above the strut 2.3, the fixed pulley (or sprocket) 2.10 is rotatably positioned on the upper frame, the strut 2.3 is positioned at one side of the fixed pulley (or sprocket) 2.10, a weight-transferring mold weight balance 2.6 is positioned at the other side of the fixed pulley (or sprocket) 2.10, as shown in fig. 3, a weight balance connecting line (or chain) 2.9 crosses the fixed pulley (or sprocket) 2.10 to connect the weight-transferring mold weight balance 2.6 and the strut 2.3 together, and the weight balance connecting line 2.9 is a flexible cable which can be a rope, a wire rope, a chain, etc. In this way, the weight balance connecting line (or chain) 2.9 respectively hangs the weight balance weight 2.6 of the transfer die and the sliding column 2.3 on two sides of the fixed pulley (or chain wheel) 2.10, the weight balance weight 2.6 of the transfer die pulls the sliding column 2.3 through the weight balance connecting line (or chain) 2.9 crossing the fixed pulley (or chain wheel) 2.10, so as to realize that the gravity of the weight balance weight 2.6 of the transfer die balances the gravity of the wet blank transfer die 2.1, the sliding column 2.3 and the mounting plate 2.2 of the wet blank transfer die, thus the weight balance weight of the wet blank transfer die 2.3 and the wet blank transfer die 2.1 can freely move up and down, the stability of the up and down movement of the sliding column 2.3 and the wet blank transfer die 2.1 is effectively increased, the weight balance weight of the wet blank transfer die 2.1 and the sliding column 2.3 can effectively balance the weight of the wet blank transfer die 2.1, the risk of the wet blank transfer die not only is eliminated, but also the load of the wet blank transfer die 2.1 when the wet blank transfer die. The weight balance connecting line (or chain) 2.9 and the fixed pulley (or chain wheel) 2.10 can adopt a chain and a chain wheel respectively, and can also be a rope or a steel cable with certain strength and a matched fixed pulley. The weight balance block 2.6 of the transfer mould, the balance linear guide rail 2.7, the balance slide block 2.8, the weight balance connecting line (or chain) 2.9 and the fixed pulley (or chain wheel) 2.10 can be a group or a plurality of groups.
When the wet blank transfer die 2.1 descends, the weight balance block 2.6 of the transfer die ascends under the pulling of the weight balance connecting line (or chain) 2.9; when the wet blank transfer mould 2.1 goes upwards, the weight balance block 2.6 of the transfer mould goes downwards by the self gravity.
As shown in fig. 1, 3, 3.1, 3.2, the up-and-down movement of the spool 2.3, which has achieved up-and-down sliding and is almost in a gravity equilibrium state, is achieved by a servo motor drive 2.11, said servo motor drive 2.11 comprising a rack 2.11-1, a gear 2.11-2, a servo motor 2.12. A rack 2.11-1 is fixed on the sliding column 2.3, a gear 2.11-2 is meshed with the rack 2.11-1, and the gear 2.11-2 is driven by a servo motor. The rotation of the servo motor drives the gear 2.11-2 to rotate so as to drive the rack 2.11-1 and the sliding column 2.3 to move up and down together; or the servo motor can realize the up-and-down movement of the sliding column 2.3 and the wet blank transfer die 2.1 through the transmission of a screw-nut pair; the servo motor can also realize the up-and-down movement of the slide column 2.3 and the wet blank transfer die 2.1 through the transmission of a synchronous belt.
Driven by a servo motor 2.12 and under the guiding action of a transfer die linear guide rail 2.4, the wet blank transfer die 2.1 can stably and accurately perform vertical up-and-down linear motion or stably and accurately stay at a certain specified position in the vertical direction.
As shown in fig. 3, in order to prevent the transfer mold weight balance 2.6 from swinging during the up-and-down movement, the transfer mold weight balance 2.6 is positioned on the balance linear guide 2.7 in a manner of moving up and down, and the up-and-down movement of the weight balance 2.6 is performed along the balance linear guide 2.7, so that the up-and-down linear movement of the weight balance 2.6 is ensured without swinging, and the stability of the weight balance 2.6 during the up-and-down movement is increased. Let transfer mould weight balancing piece 2.6 slide from top to bottom along balanced linear guide 2.7, be fixed with balanced slider 2.8 on transferring mould weight balancing piece 2.6, weight balancing piece 2.6 passes through balanced slider 2.8 and can fix a position on balanced linear guide 2.7 with reciprocating to guaranteed the up-and-down rectilinear movement of weight balancing piece 2.6, balanced linear guide 2.7 is also linear guide. The balance slide block 2.8 sliding relatively to the balance linear guide rail 2.7 is a linear slide block. Or the weight balance block 2.6 of the transfer die is sleeved on the linear track to slide up and down.
With the weight balance block 2.6 of the transfer die, the wet blank transfer die 2.1 can vertically move up and down under the driving of the servo motor 2.12 and the guiding action of the linear guide rail 2.4 of the transfer die, so that the requirements of rapidness, stability, accurate positioning and the like can be met.
After the slurry is made into a wet blank of a product by the suction filter forming device, a sliding column 2.3 in the wet blank transfer device 2 drives a wet blank transfer die 2.1 to vertically move downwards, the wet blank is sucked up from the suction filter forming die 1.1, and then the wet blank transfer die 2.1 drives the wet blank to ascend, so that the wet blank is moved out of the suction filter forming die 1.1.
Several forms of plant fibre moulding machines comprising a wet-mass transfer device 2 are illustrated below:
Fig. 2 shows a full-automatic dual-hot-pressing plant fiber molding machine including the wet blank transfer device 2, after the wet blank molding is completed by the suction filter molding device 1, the slide column 2.3 drives the wet blank transfer mold 2.1 to move vertically downward to the suction filter molding mold 1.1 to suck up the wet blank, the wet blank is lifted upward to a position along with the wet blank transfer mold, then the left hot-pressing lower mold 6.1a and the right hot-pressing lower mold 6.2a alternately move horizontally to a position right below the wet blank transfer mold 2.1, the wet blank transfer mold moves downward to transfer the wet blank to the left hot-pressing lower mold 6.1a (or the right hot-pressing lower mold 6.2a), and the wet blank transfer mold rises after the wet blank transfer is completed; the left hot pressing lower die (or the right hot pressing lower die) horizontally returns to the position right below the left hot pressing upper die 6.1b (or the position right below the right hot pressing upper die 6.2 b), the left hot pressing upper die 6.1b descends to be matched with the left hot pressing lower die (or the right hot pressing upper die descends to be matched with the right hot pressing lower die), the wet blank is subjected to hot pressing, drying and shaping, and the dried product is sent out or enters the next procedure after being manufactured.
Fig. 2.1 shows a fully automatic single-hot-pressing plant fiber molding machine comprising the wet blank transfer device 2, compared with the above fully automatic double-hot-pressing plant fiber molding machine, the fully automatic single-hot-pressing plant fiber molding machine only comprises one hot-pressing setting device, and after the wet blank molding is completed, one hot-pressing setting device is used for drying and setting the wet blank.
fig. 1 shows a plant fiber molding, suction and filtration molding machine without a hot pressing device, which includes the wet green transfer device 2, and the plant fiber molding, suction and filtration molding machine does not include a hot pressing device, when the wet green molding is completed, the slide column 2.3 drives the wet green transfer mold 2.1 to move vertically downward, after the wet green is sucked up from the suction and filtration molding mold 1.1, the suction and filtration molding mold 1.1 lifts the wet green, the wet green is moved out of the suction and filtration molding mold 1.1, and the wet green is transferred to the next process for treatment or is sent to a drying tunnel for heating and drying or is sent to other devices for heating and drying in other ways.
Claims (9)
1. A wet-green transfer method for plant fiber molding, comprising:
1) The suction filter forming die (1.1) makes the slurry into a wet blank of a product, and the wet blank transfer die (2.1) sucks the wet blank from the suction filter forming die and moves the wet blank out of the suction filter forming die;
2) A sliding column (2.3) capable of vertically sliding up and down is arranged above the suction filter forming die (1.1), a wet blank transfer die (2.1) is fixed at one end of the sliding column (2.3), or the wet blank transfer die (2.1) is fixed at one end of the sliding column (2.3) through a wet blank transfer die mounting plate (2.2), and the wet blank transfer die (2.1) is driven to vertically move linearly by the sliding column (2.3) which is positioned on the upper frame (3) and can vertically slide up and down relative to the upper frame (3);
3) 2 or more than 2 transfer die linear guide rails (2.4) are fixed on the sliding column (2.3), a transfer sliding block (2.5) is fixed on the upper rack (3), and the sliding column (2.3) can vertically slide on the transfer sliding block (2.5) through the transfer die linear guide rails (2.4); or the transfer slide block (2.5) is fixed on the slide column (2.3), the transfer mould linear guide rail (2.4) is vertically fixed on the upper rack (3), and the slide column (2.3) can vertically slide on the transfer mould linear guide rail (2.4) through the transfer slide block (2.5), so that the wet blank transfer mould (2.1) fixed at one end of the slide column can be directly and accurately matched with the suction filtration forming mould (1.1) and opened.
2. The wet green transfer method for molding plant fiber according to claim 1, wherein: balancing the gravity of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column by using a balancing cylinder; the balance cylinder (2.13) is fixed on the upper frame (3), a piston rod of the balance cylinder (2.13) is connected with the sliding column (2.3) together, the axes of the piston rod and the sliding column are parallel to each other, and the pulling force of the balance cylinder (2.13) is matched with the weights of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column; or the sliding column (2.3) is connected with the weight balance block (2.6) of the transfer die through a weight balance connecting line or a chain (2.9) crossing over a fixed pulley or a chain wheel (2.10) so as to effectively balance the weight of the wet blank transfer die (2.1) and the sliding column (2.3) through the weight balance block of the transfer die, reduce the gravity load when the servo motor drives the wet blank transfer die (2.1) to move up and down, realize the accurate, stable and rapid up and down movement of the wet blank transfer die and eliminate the risk of the uncontrolled sliding down of the wet blank transfer die.
3. the wet green transfer method for plant fiber molding according to claim 2, characterized in that: the transfer sliding blocks (2.5) are divided into two or more groups which are fixed on the upper rack from top to bottom, the adjacent upper and lower groups of transfer sliding blocks (2.5) are separated by a certain distance, and the transfer mould linear guide rails (2.4) fixed on the sliding columns (2.3) slide up and down on the upper and lower groups of transfer sliding blocks (2.5); or, two or more groups of upper and lower transfer sliding blocks (2.5) which are fixed on the sliding column (2.3) and have certain distance are vertically slid on a transfer mould linear guide rail (2.4) which is vertically fixed on the upper frame.
4. The wet green transfer method for plant fiber molding according to claim 3, characterized in that: a rack is fixed on the sliding column (2.3), a gear meshed with the rack is positioned on the upper rack (3), and a servo motor fixed on the upper rack drives the sliding column (2.3) to vertically and linearly move through a driving gear; or a screw rod and a servo motor are fixed on the sliding column (2.3), a nut meshed with the screw rod is fixed on the upper rack, and the servo motor drives the sliding column (2.3) to vertically and linearly move through driving the screw rod; or a synchronous belt is fixed on the sliding column (2.3), a synchronous belt wheel and a servo motor are positioned on the upper rack, and the servo motor drives the sliding column (2.3) to vertically and linearly move through driving the synchronous belt wheel.
5. A plant fiber molding wet blank transfer device is characterized in that: the wet blank transfer device (2) comprises a wet blank transfer die (2.1), a sliding column (2.3) which is positioned on the upper frame (3) and can vertically slide up and down relative to the upper frame (3), and a servo motor driving device (2.11) which drives the wet blank transfer die (2.1) and the sliding column (2.3) to move up and down together; the wet blank transfer die (2.1) is fixed at one end of the sliding column (2.3), or the wet blank transfer die (2.1) is fixed at one end of the sliding column (2.3) through a wet blank transfer die mounting plate (2.2);
A transfer die linear guide rail (2.4) is further fixed on the sliding column (2.3), a transfer sliding block (2.5) is fixed on the upper rack (3), and the sliding column (2.3) can vertically slide on the transfer sliding block (2.5) through the transfer die linear guide rail (2.4); or the transfer slide block (2.5) is fixed on the slide column (2.3), the transfer mould linear guide rail (2.4) is vertically fixed on the upper rack (3), and the slide column (2.3) can vertically slide on the transfer mould linear guide rail (2.4) through the transfer slide block (2.5) so as to realize the vertical accurate linear motion of the slide column (2.3) in the vertical direction, thereby realizing the accurate mould closing and opening of the wet blank transfer mould (2.1) fixed at one end of the slide column and the suction filtration forming mould (1.1) directly.
6. The plant fiber molded wet mat transfer device according to claim 5, wherein: the sliding column (2.3) is connected with a weight balance block (2.6) of the transfer die through a weight balance connecting line or a chain (2.9) crossing over a fixed pulley or a chain wheel (2.10) so as to effectively balance the weight of the wet blank transfer die (2.1) and the sliding column (2.3) through the weight balance block of the transfer die, reduce the gravity load when the servo motor drives the wet blank transfer die (2.1) to move up and down, realize the accurate, stable and rapid up and down movement of the wet blank transfer die and eliminate the risk of the wet blank transfer die losing control and sliding down; or a balance cylinder (2.13) is fixed on the upper frame (3), a piston rod of the balance cylinder (2.13) is connected with the sliding column 2.3, and the pulling force of the balance cylinder (2.13) is matched with the weights of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column so as to balance the gravity of the wet blank transfer die, the wet blank transfer die mounting plate and the sliding column through the balance cylinder.
7. The plant fiber molded wet mat transfer device according to claim 6, wherein: the servo motor driving device (2.11) comprises a rack (2.11-1) vertically fixed on the sliding column (2.3), a gear (2.11-2) fixed on the rack and meshed with the rack (2.11-1), and a servo motor fixed on the rack and driving the gear (2.11-2); the servo motor drives the rack (2.11-1) and the sliding column (2.3) to move up and down together by driving the gear (2.11-2); or the servo motor driving device (2.11) comprises a screw-nut pair mechanism arranged between the rack and the sliding column and a servo motor driving the screw-nut pair mechanism, and the servo motor drives the screw-nut pair to drive the sliding column (2.3) to move up and down.
8. The plant fiber molded wet mat transfer device according to claim 7, wherein: the transfer sliding blocks (2.5) are divided into two or more groups which are fixed on the upper rack from top to bottom, the adjacent upper and lower groups of transfer sliding blocks (2.5) are separated by a certain distance, and a transfer mould linear guide rail (2.4) fixed on the sliding column (2.3) can slide up and down on the upper and lower groups of transfer sliding blocks (2.5); or, two or more groups of upper and lower transfer sliding blocks (2.5) which are fixed on the sliding column (2.3) and are separated by a certain distance slide up and down on a transfer mould linear guide rail (2.4) which is vertically fixed on the upper frame.
9. The plant fiber molded wet mat transfer device according to claim 8, wherein: the number of the transfer mould linear guide rails (2.4) fixed on the sliding columns (2.3) is 2 or more than 2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910940140.XA CN110578274A (en) | 2019-09-30 | 2019-09-30 | Wet blank transfer method and device for plant fiber molding |
| PCT/CN2020/118896 WO2021063361A1 (en) | 2019-09-30 | 2020-09-29 | Wet blank transfer method and wet blank transfer device for use in plant fiber molding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910940140.XA CN110578274A (en) | 2019-09-30 | 2019-09-30 | Wet blank transfer method and device for plant fiber molding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110578273A (en) * | 2019-09-30 | 2019-12-17 | 浙江欧亚轻工装备制造有限公司 | Plant fiber molding vertical balance wet blank transfer method and wet blank transfer device |
| WO2021063361A1 (en) * | 2019-09-30 | 2021-04-08 | 浙江欧亚轻工装备制造有限公司 | Wet blank transfer method and wet blank transfer device for use in plant fiber molding |
| CN114032709A (en) * | 2021-12-10 | 2022-02-11 | 浙江欧亚联合装备集团有限公司 | Wet blank turnover type paper pulp molding product manufacturing method and paper pulp molding forming machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113373739B (en) * | 2021-07-26 | 2024-07-02 | 浙江庞度环保科技有限公司 | Efficient full-automatic production line and production method for pulp molded disposable tableware |
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