CN219523040U - Texture forming device for wood-plastic floor production - Google Patents

Texture forming device for wood-plastic floor production Download PDF

Info

Publication number
CN219523040U
CN219523040U CN202321060916.7U CN202321060916U CN219523040U CN 219523040 U CN219523040 U CN 219523040U CN 202321060916 U CN202321060916 U CN 202321060916U CN 219523040 U CN219523040 U CN 219523040U
Authority
CN
China
Prior art keywords
wood
screw rod
bidirectional screw
plastic floor
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
CN202321060916.7U
Other languages
Chinese (zh)
Inventor
冯岩
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.)
Deyang Hongsen New Material Technology Co ltd
Original Assignee
Deyang Hongsen New Material Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deyang Hongsen New Material Technology Co ltd filed Critical Deyang Hongsen New Material Technology Co ltd
Priority to CN202321060916.7U priority Critical patent/CN219523040U/en
Application granted granted Critical
Publication of CN219523040U publication Critical patent/CN219523040U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model discloses a texture forming device for producing wood-plastic floors, which comprises a frame, wherein a plurality of conveying rollers are rotatably arranged on the frame, supporting frames are arranged on two sides of the frame, a supporting plate is arranged between the tops of the two supporting frames, a lifting assembly is arranged on the supporting plate, an embossing roller is rotatably arranged at the bottom of the lifting assembly and is positioned above the conveying rollers, fixing plates are arranged on two sides of the frame on one side of the supporting frame, a rotatable first bidirectional screw rod is arranged between the two fixing plates, and limiting assemblies for limiting the wood-plastic floors are movably sleeved at two ends of the bidirectional screw rod respectively. According to the utility model, through the adjustment of the first bidirectional screw rod, the limiting component can limit the wood-plastic plates with different widths, so that the moving direction of the wood-plastic plates can be fixed, the stability of the wood-plastic plates in the moving process is improved, the embossing quality of the embossing machine is effectively improved, and the workload of workers is reduced.

Description

Texture forming device for wood-plastic floor production
Technical Field
The utility model relates to the technical field of wood-plastic floor processing, in particular to a texture forming device for wood-plastic floor production.
Background
The wood-plastic floor is a novel environment-friendly wood-plastic composite material product, wherein the wood phenol generated in the production process of the medium-density fiberboard and the high-density fiberboard is added with the recycled plastic to be made into the wood-plastic composite material through granulation equipment, and then the wood-plastic composite material is extruded to be produced into the wood-plastic floor. The wood-plastic composite material is a new composite material which is vigorously developed in recent years at home and abroad, and is a plate or a section material which is produced by using polyethylene, polypropylene, polyvinyl chloride and the like to replace common resin adhesive, mixing the resin adhesive with more than 50% of waste plant fibers such as wood flour, rice hulls, straw and the like to form a new wood material, and then carrying out plastic processing technologies such as extrusion, mould pressing, injection molding and the like. The method is mainly used in industries such as building materials, furniture, logistics packaging and the like.
In the process of wood-plastic floor production, generally need carry out the embossing treatment of surface texture, in the embossing process, the staff can place the plank on the embosser, then the direction of movement of manual control plank, the plank slowly removes under the rotation of embossing roller until the embossing is accomplished, the staff stacks the plank together again, because the line of embossing roller is different, the skew appears easily in the embossing process, the removal process is not smooth, lead to the quality reduction of embossing, the staff needs to control plank direction always, it is inconvenient to use.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide a texture forming device for producing wood-plastic floors.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a texture forming device is used in wood-plastic floor production, includes the frame, rotate in the frame and install a plurality of transfer rollers, the support frame is installed to both sides in the frame, two install the backup pad between the support frame top, install lifting unit in the backup pad, the embossing roller is installed in the rotation of lifting unit bottom, the embossing roller is located the top of transfer roller, is located both sides are installed the fixed plate in the frame of support frame one side, two be equipped with rotationally first two-way lead screw between the fixed plate, both ends have movably been cup jointed respectively and have been used for spacing wood-plastic floor's spacing subassembly on the first two-way lead screw.
Further, the limiting component comprises a movable plate movably sleeved on a first bidirectional screw rod, a first transverse plate is respectively arranged on one opposite side of the two movable plates, a screw rod is longitudinally arranged on the first transverse plate, the screw rod penetrates through the first transverse plate, a knob is arranged at the top of the screw rod, and a second transverse plate is rotatably arranged at the bottom of the screw rod.
Further, the lifting assembly comprises vertical plates symmetrically arranged on two sides of the supporting plate, the vertical plates are arranged in parallel with the fixing plates, a second bidirectional screw rod capable of rotating is arranged between the vertical plates, sliding blocks are movably sleeved at two ends of the second bidirectional screw rod respectively, a first supporting seat is arranged at the bottom end of each sliding block, the first supporting seat is hinged to one end of each connecting rod, the other end of each connecting rod penetrates through a through hole formed in the supporting plate to be hinged to a second supporting seat respectively, the second supporting seat is arranged at the top of the mounting plate, and embossing rollers are rotatably arranged at the bottom of the mounting plate.
Further, a plurality of first guide rods are further arranged between the two fixed plates, the first guide rods are arranged in parallel with the first bidirectional screw rod and symmetrically located on two sides of the first bidirectional screw rod, and the first guide rods penetrate through the movable plate and are in sliding connection with the movable plate.
Further, a second guide rod is further arranged between the two vertical plates, penetrates through the sliding block and is in sliding connection with the sliding block.
Further, the second transverse plate is located below the first bidirectional screw rod and the first guide rod, and a plurality of guide wheels are rotatably arranged at the bottom of the second transverse plate.
Further, a guide roller is rotatably arranged at one side, far away from the first bidirectional screw rod, of the bottom of the mounting plate.
Further, support legs are arranged at the bottom of the frame.
Compared with the prior art, the utility model provides the texture forming device for producing the wood-plastic floor, which has the following beneficial effects:
1. according to the utility model, the wood-plastic floor is limited by the limiting assembly, and the limiting assembly can limit the wood-plastic floors with different widths by adjusting the first bidirectional screw rod, so that the moving direction of the wood-plastic floor is favorably fixed, the stability of the wood-plastic floor in the moving process is improved, the embossing quality of the embossing machine is effectively improved, and the workload of workers is reduced; through the setting of lifting unit, make embossing roller down or upwards longitudinal movement, adjust the distance between embossing roller and the transfer roller, can emboss the wood plastic floor that the thickness is different, the practicality is strong, improves embossing quality.
2. According to the utility model, the guide wheels are arranged, so that the wood-plastic floor can be guided, the movement of the wood-plastic floor is not influenced in the limiting process, and the smoothness of the conveyed wood-plastic floor can be improved.
Drawings
FIG. 1 is a schematic top view of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
FIG. 3 is a schematic view of a spacing assembly of the present utility model;
fig. 4 is a schematic view of the structure of the lifting assembly of the present utility model.
The mark in the figure is 1, a frame; 2. a conveying roller; 3. a support frame; 4. a support plate; 5. a lifting assembly; 51. a riser; 52. a second bidirectional screw rod; 53. a slide block; 54. a motor; 55. a first support base; 56. a connecting rod; 57. a second support base; 58. a mounting plate; 6. embossing rollers; 7. a fixing plate; 8. a limit component; 81. a movable plate; 82. a first cross plate; 83. a second cross plate; 84. a screw; 85. a knob; 86. a guide wheel; 9. a first bidirectional screw rod; 10. a rotating wheel; 11. a first guide bar; 12. a second guide bar; 13. a guide roller; 14. support legs; 15. and a through hole.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
in the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "longitudinal", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.
It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The embodiment of the utility model provides a texture forming device for wood-plastic floor production, which comprises a frame 1, wherein a plurality of conveying rollers 2 are rotatably arranged on the frame 1 to convey the wood-plastic floor, supporting frames 3 are arranged on two sides of the frame 1, the supporting frames 3 are parallel to the conveying direction of the conveying rollers 2, a supporting plate 4 is arranged between the tops of the two supporting frames 3, a lifting assembly 5 is arranged on the supporting plate 4, an embossing roller 6 is rotatably arranged at the bottom of the lifting assembly 5, and the embossing roller 6 is positioned above the conveying rollers 2;
through the setting of lifting unit 5, make embossing roller 6 down or upwards remove, adjust the distance between embossing roller 6 and the transfer roller 2, can emboss the different wood-plastic floor of thickness, the practicality is strong, improves embossing quality.
The two sides of the frame 1 positioned on one side of the supporting frame 3 are provided with fixing plates 7, a first rotatable bidirectional screw rod 9 is arranged between the two fixing plates 7, two ends of the first bidirectional screw rod 9 are rotatably connected with the fixing plates 7 through bearings, and two ends of the first bidirectional screw rod 9 are respectively movably sleeved with a limiting assembly 8 for limiting the wood-plastic floor.
With reference to fig. 1, one end of the first bidirectional screw rod 9 is further provided with a rotating wheel 10, and by rotating the rotating wheel 10, the two limiting assemblies 8 on the first bidirectional screw rod 9 can be relatively close to/far away from each other.
Referring to fig. 1 and 3, in this embodiment, the limiting component 8 includes a movable plate 81 movably sleeved on the first bidirectional screw rod 9, a threaded connection is formed between the first bidirectional screw rod 9 and the movable plate 81, the bottom of the movable plate 81 is slightly higher than or flush with the top of the conveying roller 2, interference between the movable plate 81 and the conveying roller 2 is avoided, a first transverse plate 82 is respectively installed on opposite sides of two movable plates 81, a screw rod 84 is longitudinally arranged on the first transverse plate 82, the screw rod 84 is in threaded connection with the first transverse plate 82, the screw rod 84 penetrates through the first transverse plate 82, a knob 85 is installed at the top of the screw rod 84, a second transverse plate 83 is rotatably installed at the bottom of the screw rod 84, and the second transverse plate 83 is located above the conveying roller 2.
In this embodiment, the second transverse plate 83 is located below the first bidirectional screw rod 9 and the first guide rod 11, so that interference between the second transverse plate 83 and the first bidirectional screw rod 9 and the first guide rod 11 in the downward moving process is avoided, a plurality of guide wheels 86 are rotatably arranged at the bottom of the second transverse plate 83, the guiding effect on the wood-plastic floor can be achieved, the movement of the wood-plastic floor is not affected in the limiting process, and meanwhile the smoothness of the wood-plastic floor being conveyed can be improved.
The lengths of the movable plate 81, the first cross plate 82, and the second cross plate 83 do not extend to the right under the embossing roller 6, and do not contact the embossing roller 6, avoiding interference.
According to the width on wood-plastic floor with fly leaf 81 adjustment suitable position, the fly leaf 81 and the both sides on wood-plastic floor do not contact, avoid fly leaf 81 to press from both sides tight with wood-plastic floor, lead to wood-plastic floor unable removal, through rotating knob 85, drive screw 84 downward longitudinal movement, thereby drive second diaphragm 83 downward longitudinal movement, make leading wheel 86 and the top surface contact on wood-plastic floor, the motion on wood-plastic floor is not influenced at spacing in-process, can improve the smooth nature of wood-plastic floor by the conveying simultaneously, effectively improve the embossing quality of embosser, reduce staff's work load.
Referring to fig. 1, in this embodiment, a plurality of first guide rods 11 are further disposed between the two fixing plates 7, the first guide rods 11 are disposed parallel to the first bidirectional screw rod 9 and symmetrically located on two sides of the first bidirectional screw rod 9, and the plurality of first guide rods 11 penetrate through the movable plate 81 and are slidably connected with the movable plate 81.
Preferably, the number of the first guide rods 11 is 2 (which can be increased or decreased according to practical situations), and the two guide rods are symmetrically arranged at two sides of the first bidirectional screw rod 9, so that the practicability is improved, and the moving stability of the movable plate 81 is improved.
Referring to fig. 2 and 4, in this embodiment, the lifting assembly 5 includes risers 51 symmetrically disposed on two sides of the support plate 4, where the risers 51 are disposed parallel to the fixing plate 7, a second rotatable bidirectional screw 52 is disposed between the two risers 51, two ends of the second bidirectional screw 52 are rotatably connected with the risers 51 through bearings, two ends of the second bidirectional screw 52 are movably sleeved with a slider 53 respectively, the second bidirectional screw 52 is in threaded connection with the slider 53, a first support seat 55 is disposed at a bottom end of the slider 53, the first support seat 55 is hinged with one end of a connecting rod 56, the other end of the connecting rod 56 is hinged with a second support seat 57 through a through hole 15 formed in the support plate 4, the second support seat 57 is installed at a top of the mounting plate 58, and an embossing roller 6 is rotatably installed at a bottom of the mounting plate 58.
Referring to fig. 1 and 4, one end of the second bidirectional screw rod 52 is further provided with a motor 54, the motor 54 is mounted on a side plate, one side of the side plate is mounted on the vertical plate 51, the motor 54 is started, the motor 54 drives the second bidirectional screw rod 52 to rotate, so that the second bidirectional screw rod 52 drives the sliding block 53 to relatively approach/separate, the sliding block 53 drives the top end of the connecting rod 56 to relatively approach/separate, and then the mounting plate 58 moves downwards or upwards longitudinally under the action of the resultant force of the 2 connecting rods 56, so that the embossing roller 6 moves downwards or upwards, the distance between the embossing roller 6 and the conveying roller 2 is adjusted, and wood-plastic floors with different thicknesses can be embossed.
Referring to fig. 4, in this embodiment, a second guide rod 12 is further disposed between the two risers 51, and the second guide rod 12 penetrates the slider 53 and is slidably connected to the slider 53.
Preferably, the number of the second guide rods 12 is 1 (which can be increased or decreased according to practical situations), and the second guide rods are arranged in parallel with the second bidirectional screw rod 52, so that the moving stability of the sliding block 53 is improved.
Referring to fig. 2, in this embodiment, the bottom of the frame 1 is provided with supporting legs 14 for supporting the frame 1, and the supporting legs 14 are preferably distributed at four corners of the bottom of the frame 1.
Referring to fig. 2, in another embodiment, a guiding roller 13 is rotatably mounted at a side of the bottom of the mounting plate 58 away from the first bidirectional screw rod 9 to guide and stabilize the wood-plastic floor, so as to prevent one end of the wood-plastic floor from being separated from the limiting component 8 and from tilting, shaking or moving when the wood-plastic floor is processed by the embossing roller 6, so as to improve the embossing quality of the wood-plastic floor, and preferably, the bottom of the guiding roller 13 and the bottom of the embossing roller 6 are in the same horizontal plane.
Working principle: when the embossing machine is used, the wood-plastic floor is placed on the conveying roller 2, the rotating wheel 10 is rotated to drive the movable plates 81 on the first bidirectional screw rod 9 to be close to each other, the wood-plastic floor with different widths is adjusted, the knob 85 is rotated to drive the screw rod 84 to move downwards longitudinally, so that the second transverse plate 83 is driven to move downwards longitudinally, the guide wheel 86 is in contact with the top surface of the wood-plastic floor, the movement of the wood-plastic floor is not influenced in the limiting process, meanwhile, the smoothness of the wood-plastic floor being conveyed can be improved, meanwhile, the motor 54 is started to drive the second bidirectional screw rod 52 to rotate, the second bidirectional screw rod 52 drives the sliding block 53 to be relatively close to each other, the sliding block 53 drives the top ends of the connecting rods 56 to be relatively close to each other, the mounting plate 58 is driven to move downwards longitudinally by the resultant force of the 2 connecting rods 56, the embossing roller 6 is driven to move downwards, the wood-plastic floor with different thicknesses is embossed, the practicability is high, the embossing quality of the embossing machine is effectively improved, and the workload of workers is reduced.
What is not described in detail in this specification is prior art known to those skilled in the art.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. Based on these embodiments, all other embodiments that may be obtained by one of ordinary skill in the art without inventive effort are within the scope of the utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art may still combine, add or delete features of the embodiments of the present utility model or make other adjustments according to circumstances without any conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present utility model, which also falls within the scope of the present utility model.

Claims (8)

1. The utility model provides a texture forming device is used in wood-plastic floor production, includes frame (1), its characterized in that, rotate on frame (1) and install a plurality of transfer rollers (2), support frame (3) are installed to both sides on frame (1), two install backup pad (4) between support frame (3) top, install lifting unit (5) on backup pad (4), embossing roller (6) are installed in rotation of lifting unit (5) bottom, embossing roller (6) are located the top of transfer roller (2);
the two sides of the frame (1) positioned on one side of the supporting frame (3) are provided with fixing plates (7), a first bidirectional screw rod (9) capable of rotating is arranged between the two fixing plates (7), and limiting assemblies (8) used for limiting the wood-plastic floor are movably sleeved at the two ends of the first bidirectional screw rod (9) respectively.
2. The grain forming device for wood-plastic floor production according to claim 1, wherein the limiting component (8) comprises a movable plate (81) movably sleeved on a first bidirectional screw rod (9), first transverse plates (82) are respectively arranged on opposite sides of the two movable plates (81), a screw rod (84) is longitudinally arranged on each first transverse plate (82), the screw rod (84) penetrates through each first transverse plate (82), a knob (85) is arranged at the top of each screw rod (84), and a second transverse plate (83) is rotatably arranged at the bottom of each screw rod (84).
3. The grain forming device for wood-plastic floor production according to claim 1, wherein the lifting assembly (5) comprises vertical plates (51) symmetrically arranged on two sides of the supporting plate (4), the vertical plates (51) are arranged in parallel with the fixing plates (7), a second bidirectional screw rod (52) capable of rotating is arranged between the two vertical plates (51), sliding blocks (53) are movably sleeved at two ends of the second bidirectional screw rod (52) respectively, a first supporting seat (55) is arranged at the bottom end of each sliding block (53), the first supporting seat (55) is hinged with one end of a connecting rod (56), through holes (15) formed in the other end of each connecting rod (56) penetrating through the supporting plate (4) are hinged with the corresponding second supporting seat (57), the second supporting seats (57) are arranged at the top of the mounting plate (58), and embossing rollers (6) are rotatably arranged at the bottom of the mounting plate (58).
4. The texture forming device for wood-plastic floor production according to claim 2, wherein a plurality of first guide rods (11) are further arranged between the two fixed plates (7), the first guide rods (11) are arranged in parallel with the first bidirectional screw rods (9) and symmetrically located on two sides of the first bidirectional screw rods (9), and the first guide rods (11) penetrate through the movable plates (81) and are in sliding connection with the movable plates (81).
5. A grain forming device for wood-plastic floor production according to claim 3, characterized in that a second guide rod (12) is further arranged between the two vertical plates (51), and the second guide rod (12) penetrates through the sliding block (53) and is in sliding connection with the sliding block (53).
6. The texture forming device for wood-plastic floor production according to claim 4, wherein the second transverse plate (83) is located below the first bidirectional screw rod (9) and the first guide rod (11), and a plurality of guide wheels (86) are rotatably arranged at the bottom of the second transverse plate (83).
7. The grain forming device for wood-plastic floor production according to claim 5, wherein a guide roller (13) is rotatably installed at one side of the bottom of the mounting plate (58) away from the first bidirectional screw rod (9).
8. Texture forming device for wood-plastic flooring production according to claim 1, wherein the bottom of the frame (1) is provided with support legs (14).
CN202321060916.7U 2023-05-06 2023-05-06 Texture forming device for wood-plastic floor production Active CN219523040U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321060916.7U CN219523040U (en) 2023-05-06 2023-05-06 Texture forming device for wood-plastic floor production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321060916.7U CN219523040U (en) 2023-05-06 2023-05-06 Texture forming device for wood-plastic floor production

Publications (1)

Publication Number Publication Date
CN219523040U true CN219523040U (en) 2023-08-15

Family

ID=87635284

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321060916.7U Active CN219523040U (en) 2023-05-06 2023-05-06 Texture forming device for wood-plastic floor production

Country Status (1)

Country Link
CN (1) CN219523040U (en)

Similar Documents

Publication Publication Date Title
WO2021184979A1 (en) Automatic soft-formation edge banding machine
CN104210139B (en) Line pressing machine, corrugated board production line and line pressing method
CN112894984B (en) Cold punching paperboard cutting interval stacking device
CN210026465U (en) Indentation mechanism with rolling indentation function for carton production and processing
CN219523040U (en) Texture forming device for wood-plastic floor production
CN210148330U (en) Trimming device for plate production
CN105235019B (en) The double drive roll feed mechanisms of cylinder floating formula
CN115157337B (en) Tectorial membrane device is used in PVC wood plastic panel production
CN115157604B (en) Solid wood-plastic board production line and production method
CN115091740B (en) Wood board surface coating forming processing technology and equipment
CN114055600B (en) Processing method of micro-foaming SPC wallboard
CN210758220U (en) Plate drilling machine
CN115256887A (en) Board thermal extrusion back shaping device is moulded to PVC wood
CN212446441U (en) Double-roller plate press for plates with different thicknesses
CN206501199U (en) A kind of plank end face processing machine
CN220684246U (en) Plastic film hot pressing and cutting integrated machine
CN220374167U (en) Marking device for laminated plate
CN206374201U (en) Composite embossed machine
CN220995431U (en) Die carrier regulating mechanism of film blowing machine
CN216760764U (en) Foam extruder is used in cystosepiment production
CN213830327U (en) Pattern cutting machine for processing rubber and plastic elastic materials
CN219311488U (en) Feeding transmission device of thicknesser
CN220661990U (en) Planer-type corrugated container printing device
CN115091559A (en) Groove milling device
CN218928692U (en) Washing piece pelleter

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant