CN112157741A - Thin wood board processing platform with clamping mechanism - Google Patents
Thin wood board processing platform with clamping mechanism Download PDFInfo
- Publication number
- CN112157741A CN112157741A CN202011133305.1A CN202011133305A CN112157741A CN 112157741 A CN112157741 A CN 112157741A CN 202011133305 A CN202011133305 A CN 202011133305A CN 112157741 A CN112157741 A CN 112157741A
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- Prior art keywords
- clamping
- block
- seat
- vertical
- processing platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
- B27C5/02—Machines with table
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
- B27C5/02—Machines with table
- B27C5/06—Arrangements for clamping or feeding work
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a thin wood board processing platform with a clamping mechanism, which comprises a moving seat and a processing platform, wherein a moving plate is connected in the moving seat in a sliding manner, a displacement assembly is arranged in the moving seat, the processing platform is arranged on the upper side of the moving plate, a vertical seat is arranged at the upper end of the processing platform, two clamping seats are symmetrically arranged between the vertical seats, a driving assembly is arranged on the vertical seat, a clamping assembly is arranged in each clamping seat, a side clamping assembly is arranged in each clamping seat, and a control panel is arranged on the side surface of the moving seat. The first motor drives the first lead screw to rotate so that the vertical block in threaded connection with the first lead screw moves up and down, the moving plate fixedly connected with the vertical block moves up and down, and the processing platform on the upper side of the moving plate is subjected to up-and-down displacement adjustment; the control panel controls different first hydraulic components to work so that the vertical rods can move up and down, then the fixed blocks connected through the rotation of the vertical rods drive the machining platform to rotate, the angle of the machining platform is adjusted, and then the machining platform can adapt to different machining requirements, so that the machining platform is higher in universality.
Description
Technical Field
The invention relates to the technical field of wood processing, in particular to a thin wood board processing platform with a clamping mechanism.
Background
Wood processing, which is processing mainly by mechanical or chemical methods using wood as a raw material, still maintains the basic characteristics of wood. The wood processing technology comprises basic processing technologies such as wood cutting, wood drying, wood gluing and wood surface decoration, and functional processing technologies such as wood protection and wood modification. Traditional timber is adding man-hour, fixes timber on processing platform, and traditional processing platform angle is fixed, can't satisfy different ligneous processing angles.
Disclosure of Invention
The invention aims to provide a thin wood board processing platform with a clamping mechanism to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a thin plank processing platform with clamping mechanism, is including removing seat and processing platform, sliding connection has the movable plate in removing the seat, be equipped with the displacement subassembly that the drive movable plate reciprocated in removing the seat, the movable plate upside is equipped with processing platform, processing platform upper end both sides fixedly connected with erects the seat, it is equipped with two holders to erect the symmetry between the seat, be equipped with the drive assembly that the drive holder reciprocated on erecting the seat, be equipped with the centre gripping subassembly of treating processing plank centre gripping in the holder, be equipped with the side clamp subassembly of carrying out the centre gripping on treating processing plank about the side in the holder, it is equipped with control panel to remove a side.
As a further scheme of the invention: the lower end of the movable seat is provided with a plurality of rollers with brake blocks.
As a further scheme of the invention: the side block is fixedly connected with the periphery of the moving plate, the side block is connected with the moving seat in a sliding mode, and a connecting groove for the side block to move is formed in the moving seat.
As a further scheme of the invention: the displacement assembly comprises a first motor, a first lead screw and a vertical block, the first motor is fixedly connected with the moving seat, the output end of the first motor is fixedly connected with the first lead screw, the vertical block is connected to the first lead screw in a threaded manner, and the vertical block is fixedly connected with the moving plate.
As a further scheme of the invention: the drive assembly comprises a second lead screw, a case, a second motor, a sliding block and a connecting block, the second lead screw is rotatably connected in the vertical seat, the second lead screw penetrates through the vertical seat and is rotatably connected with the vertical seat, a through hole for rotating the second lead screw is formed in the vertical seat, the case is fixedly connected with the vertical seat, the second motor is arranged in the case, the output end of the second motor is fixedly connected with the second lead screw, the sliding block is connected with the second lead screw in a threaded manner, the sliding block is fixedly connected with the connecting block, the connecting block is slidably connected with the vertical seat, and the connecting block is fixedly connected with the clamping seat.
As a further scheme of the invention: and the vertical seat is provided with a side groove for the connecting block to slide.
As a further scheme of the invention: the clamping assembly comprises a second hydraulic element, a transverse block, a second spring and a clamping block, the second hydraulic element is fixedly connected with the clamping seat, the second hydraulic element is fixedly connected with the transverse block, the transverse block is fixedly connected with the clamping block, and the transverse block is provided with the second spring.
As a further scheme of the invention: the surface of the clamping block is provided with a plurality of convex blocks.
As a further scheme of the invention: the side clamp assembly comprises a short column, a semicircular rod and a side clamp block, wherein the short column is fixedly connected with the transverse block respectively, the short column penetrates through the clamping seat and is in sliding connection with the clamping seat, a through groove for the short column to move is formed in the clamping seat, the short column is connected with one end of the semicircular rod in a rotating mode, the other end of the semicircular rod is connected with the side clamp block in a rotating mode, the side clamp block is connected with the clamping seat in a rotating mode, and the cross section of the side clamp block is in a semicircular ring shape.
As a further scheme of the invention: the movable plate is characterized in that a plurality of first hydraulic elements are arranged at the upper end of the movable plate, the output ends of the first hydraulic elements are fixedly connected with one ends of vertical rods, the other ends of the vertical rods are rotatably connected with the fixed block, the fixed block is fixedly connected with the processing platform, first springs are arranged on the vertical rods, and displacement detectors for detecting the working displacement of the first hydraulic elements are arranged on the movable plate.
Compared with the prior art, the invention has the beneficial effects that:
the first motor drives the first lead screw to rotate so that the vertical block in threaded connection with the first lead screw moves up and down, the moving plate fixedly connected with the vertical block moves up and down, and the processing platform on the upper side of the moving plate is subjected to up-and-down displacement adjustment; the control panel controls different first hydraulic elements to work so that the vertical rods move up and down, the fixed blocks connected through the vertical rods in a rotating mode drive the machining platform to rotate, the angle of the machining platform is adjusted, the machining platform is made to adapt to different machining requirements, and the machining platform is made to be higher in universality; the second motor in the machine box drives the second lead screw to rotate so as to enable the sliding block to move up and down, and further enable the connecting block to drive the clamping seat to move up and down so as to enable wood in the middle of the clamping seat to move up and down and adapt to different processing requirements; second hydraulic component work makes the horizontal bar drive the grip block and carries out the centre gripping to timber, and the horizontal bar removes and makes fixed connection's short column remove with it, makes the side clamp splice carry out the side direction centre gripping to timber through the joint action of semicircle pole, makes timber can stabilize the centre gripping through the centre gripping work of two directions, and realizes the centre gripping work of two directions through a drive element, simple structure and effective centre gripping, and the energy consumption is lower.
Drawings
Fig. 1 is a schematic structural diagram of a thin wood board processing platform with a clamping mechanism.
Fig. 2 is a partial structural schematic view of a thin wood board processing platform with a clamping mechanism.
Fig. 3 is a schematic three-dimensional structure diagram of a vertical seat of a thin wood board processing platform with a clamping mechanism.
Fig. 4 is a schematic three-dimensional structure diagram of a movable seat of a thin wood board processing platform with a clamping mechanism.
Fig. 5 is a schematic three-dimensional structure diagram of a clamping seat of a thin wood board processing platform with a clamping mechanism.
In the figure: 1-moving seat, 2-roller, 3-processing platform, 4-moving plate, 5-side block, 6-connecting groove, 7-first motor, 8-first lead screw, 9-vertical block, 10-through hole, 11-first hydraulic element, 12-vertical rod, 13-first spring, 14-fixing block, 15-displacement detector, 16-vertical seat, 17-second lead screw, 18-case, 19-second motor, 20-sliding block, 21-connecting block, 22-side groove, 23-clamping seat, 24-second hydraulic element, 25-transverse block, 26-second spring, 27-clamping block, 28-convex block, 29-short column, 30-through groove, 31-semi-circular rod, 32-side clamping block, 33-control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
Referring to fig. 1-5, a thin wood board processing platform with a clamping mechanism comprises a moving seat 1 and a processing platform 3, wherein the moving seat 1 is connected with a moving plate 4 in a sliding manner, a displacement assembly for driving the moving plate 4 to move up and down is arranged in the moving seat 1, the processing platform 3 is arranged on the upper side of the moving plate 4, vertical seats 16 are fixedly connected to two sides of the upper end of the processing platform 3, two clamping seats 23 are symmetrically arranged between the vertical seats 16, a driving assembly for driving the clamping seats 23 to move up and down is arranged on each vertical seat 16, a clamping assembly for clamping a wood board to be processed is arranged in each clamping seat 23, side clamping assemblies for clamping the upper side and the lower side of the wood board to be processed are arranged in each clamping.
Furthermore, four rollers 2 with brake blocks are arranged at the lower end of the movable seat 1, so that the whole device can be conveniently moved to different positions to work;
the side block 5 is fixedly connected on the periphery of the moving plate 4, the side block 5 is connected with the moving seat 1 in a sliding manner, the moving seat 1 is provided with a connecting groove 6 for the side block 5 to move, the moving plate 4 moves up and down in the moving seat 1, and the side block 5 on the periphery of the moving plate 4 moves up and down in the connecting groove 6;
the displacement assembly comprises a first motor 7, a first lead screw 8 and a vertical block 9, the first motor 7 is fixedly connected with the movable base 1, the first motor 7 is a servo motor EDSMT-2T110-020A, the output end of the first motor 7 is fixedly connected with the first lead screw 8, the vertical block 9 is in threaded connection with the first lead screw 8, the vertical block 9 is fixedly connected with the movable plate 4, the first motor 7 rotates to enable the first lead screw 8 fixedly connected with the first motor to rotate, and the first lead screw 8 rotates to enable the vertical block 9 in threaded connection with the first lead screw to move downwards along the surface of the vertical block, so that the movable plate 4 moves upwards and downwards in the movable base 1;
the driving component comprises a second lead screw 17, a case 18, a second motor 19, a sliding block 20 and a connecting block 21, the second lead screw 17 is rotatably connected in the vertical seat 16, the second lead screw 17 penetrates through the vertical seat 16 and is rotatably connected with the vertical seat 16, the vertical seat 16 is provided with a through hole 10 for the second lead screw 17 to rotate, the case 18 is fixedly connected with the vertical seat 16, the case 18 is internally provided with the second motor 19, the second motor 19 is a servo motor EDSMT-2T110-020A, the output end of the second motor 19 is fixedly connected with the second lead screw 17, the sliding block 20 is in threaded connection with the connecting block 21, the connecting block 21 is in sliding connection with the vertical seat 16, the connecting block 21 is fixedly connected with a clamping seat 23, the second motor 19 is started, the output end of the second motor 19 rotates to enable the second lead screw 17 fixedly connected with the second motor to rotate, the second lead screw 17 rotates to enable the sliding block 20 in threaded connection with the second lead screw, thereby enabling the connecting block 21 fixedly connected with the sliding block 20 to move in the side groove 22 on the side seat 16, and enabling the clamping seat 23 fixedly connected with the connecting block 21 to move up and down;
further, the vertical seat 16 is provided with a side groove 22 for the connecting block 21 to slide;
the clamping assembly comprises a second hydraulic component 24, a transverse block 25, a second spring 26 and a clamping block 27, the second hydraulic component 24 is fixedly connected with the clamping seat 23, the second hydraulic component 24 is fixedly connected with the transverse block 25, the transverse block 25 is fixedly connected with the clamping block 27, the transverse block 25 is provided with the second spring 26, the control panel 33 controls the second hydraulic component 24 in the clamping seat 23 to work, the output end of the second hydraulic component 24 drives the transverse block 25 to move, so that the clamping block 27 fixedly connected with the transverse block 25 transversely clamps the wood board, and the elastic force of the second spring 26 arranged on the transverse block 25 buffers and damps the clamped wood;
furthermore, a plurality of projections 28 are arranged on the surface of the clamping block 27, and the projections 28 arranged on the clamping plate 27 increase the friction force of clamping;
the side clamp assembly comprises a short column 29, a semi-circular rod 31 and side clamp blocks 32, the two short columns 29 are respectively fixedly connected with the transverse block 25, the short columns 29 penetrate through the clamping seat 23 and are in sliding connection with the clamping seat 23, through grooves 30 for the short columns 29 to move are formed in the clamping seat 23, the short columns 29 are rotationally connected with one ends of the semi-circular rods 31, the other ends of the semi-circular rods 31 are rotationally connected with the side clamp blocks 32, the side clamp blocks 32 are rotationally connected with the clamping seat 23, the cross sections of the side clamp blocks 32 are semicircular, the transverse blocks 25 move in the through grooves 30 on the clamping seat 23, the short columns 29 are driven to move in the through grooves 30, the semi-circular rods 31 rotate, and then the clamp blocks 32 on the upper side and the lower.
Further, the specific structure and model of the first hydraulic component 11 and the second hydraulic component 24 are the prior art, and are not described herein again.
The working principle of the embodiment 1 of the invention is as follows:
a wood board to be clamped is placed between the side clamping blocks 32, the control panel 33 controls the second hydraulic component 24 in the clamping seat 23 to work, the output end of the second hydraulic component 24 drives the transverse block 25 to move, so that the clamping block 27 fixedly connected to the transverse block 25 transversely clamps the wood board, the lug 28 arranged on the clamping block 27 increases the clamping friction force, and the elastic action of the second spring 26 arranged on the transverse block 25 buffers and damps the clamped wood;
when the cross block 25 moves, the short column 29 is driven to move in the through groove 30 on the clamping seat 23, the short column 29 moves to enable the semi-circular rod 31 to rotate, and further the clamping blocks 32 on the upper side and the lower side of the wood are enabled to be close to each other to laterally clamp the wood;
the control panel 33 controls the second motor 19 in the case 18 to start, the output end of the second motor 19 rotates to make the second lead screw 17 fixedly connected with the second motor rotate, the second lead screw 17 rotates to make the sliding block 20 in threaded connection with the second lead screw move up and down along the surface of the second lead screw, so that the connecting block 21 fixedly connected with the sliding block 20 moves in the side groove 22 on the side seat 16, the connecting block 21 moves to make the clamping seat 23 fixedly connected with the connecting block move up and down, and further make the clamped wood in the clamping seat 23 move up and down;
the control panel 33 controls the first motor 7 to rotate so that the first lead screw 8 fixedly connected with the first motor rotates, the first lead screw 8 rotates so that the vertical block 9 in threaded connection with the first lead screw moves downwards along the surface of the first lead screw, the moving plate 4 further moves upwards and downwards in the moving seat 1, and the side blocks 5 on the peripheral side of the moving plate 4 move upwards and downwards in the connecting grooves 6, so that the position of the processing platform 3 on the moving plate 4 is adjusted in a displacement mode.
Example 2
Further improvement is made on the basis of the embodiment 1, and the improvement points are as follows: 4 upper ends of movable plate are equipped with a plurality of first hydraulic component 11, the one end fixed connection of 11 output of first hydraulic component and montant 12, the montant 12 other end rotates with fixed block 14 to be connected, fixed block 14 and 3 fixed connection of processing platform, be equipped with first spring 13 on montant 12, be equipped with the displacement detector 15 that detects 11 working displacement of first hydraulic component on the movable plate 4, according to different processing demands, make the different first hydraulic component 11 work of control panel 33 control, first hydraulic component 11 drives and drives montant 12 and reciprocate, montant 12 rotates on fixed block 14, and then realize adjusting the angle of processing platform 3, and the elastic damping is carried out to processing platform 3 to the spring action of the first spring 13 of setting on montant 12.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A thin wood board processing platform with a clamping mechanism, which comprises a movable seat (1) and a processing platform (3), it is characterized in that a moving plate (4) is connected in the moving seat (1) in a sliding way, a displacement component for driving the moving plate (4) to move up and down is arranged in the moving seat (1), a processing platform (3) is arranged on the upper side of the moving plate (4), vertical seats (16) are fixedly connected with two sides of the upper end of the processing platform (3), two clamping seats (23) are symmetrically arranged between the vertical seats (16), a driving component for driving the clamping seats (23) to move up and down is arranged on the vertical seats (16), be equipped with the centre gripping subassembly of treating the processing plank centre gripping in grip slipper (23), be equipped with the side clamp subassembly that carries out the centre gripping of treating processing plank downside on grip slipper (23), it is equipped with control panel (33) to remove seat (1) side.
2. The thin wood board processing platform with the clamping mechanism as claimed in claim 1, wherein the lower end of the movable base (1) is provided with a plurality of rollers (2) with brake blocks.
3. The thin wood board processing platform with the clamping mechanism as claimed in claim 1, wherein the moving plate (4) is fixedly connected with a side block (5) on the periphery, the side block (5) is connected with the moving seat (1) in a sliding manner, and the moving seat (1) is provided with a connecting groove (6) for moving the side block (5).
4. The fine wood board processing platform with the clamping mechanism is characterized in that the displacement assembly comprises a first motor (7), a first lead screw (8) and a vertical block (9), the first motor (7) is fixedly connected with the moving seat (1), the output end of the first motor (7) is fixedly connected with the first lead screw (8), the vertical block (9) is connected to the first lead screw (8) in a threaded mode, and the vertical block (9) is fixedly connected with the moving plate (4).
5. The thin wood board processing platform with the clamping mechanism according to claim 1, wherein the driving assembly comprises a second lead screw (17), a case (18), a second motor (19), a sliding block (20) and a connecting block (21), the second lead screw (17) is rotatably connected in the vertical base (16), the second lead screw (17) penetrates through the vertical base (16) and is rotatably connected with the vertical base, a through hole (10) for the second lead screw (17) to rotate is formed in the vertical base (16), the case (18) is fixedly connected with the vertical base (16), the second motor (19) is arranged in the case (18), the output end of the second motor (19) is fixedly connected with the second lead screw (17), the sliding block (20) is connected to the second lead screw (17) in a threaded manner, the sliding block (20) is fixedly connected with the connecting block (21), and the connecting block (21) is slidably connected with the vertical base (16), the connecting block (21) is fixedly connected with the clamping seat (23).
6. A thin wood board processing platform with a clamping mechanism according to claim 5, characterized in that the vertical seat (16) is provided with a side groove (22) for the connecting block (21) to slide.
7. The thin wood board processing platform with the clamping mechanism is characterized in that the clamping assembly comprises a second hydraulic element (24), a cross block (25), a second spring (26) and a clamping block (27), the second hydraulic element (24) is fixedly connected with the clamping seat (23), the second hydraulic element (24) is fixedly connected with the cross block (25), the cross block (25) is fixedly connected with the clamping block (27), and the second spring (26) is arranged on the cross block (25).
8. A joinery platform with clamping mechanisms according to claim 7 wherein said clamping blocks (27) have lugs (28) on their surfaces.
9. The thin wood board processing platform with the clamping mechanism is characterized in that the side clamping assembly comprises short columns (29), a semicircular rod (31) and side clamping blocks (32), the two short columns (29) are respectively and fixedly connected with the transverse block (25), the short columns (29) penetrate through the clamping seat (23) and are in sliding connection with the clamping seat (23), through grooves (30) for the short columns (29) to move are formed in the clamping seat (23), the short columns (29) are rotatably connected with one ends of the semicircular rods (31), the other ends of the semicircular rods (31) are rotatably connected with the side clamping blocks (32), the side clamping blocks (32) are rotatably connected with the clamping seat (23), and the cross sections of the side clamping blocks (32) are semicircular.
10. The fine wood board processing platform with the clamping mechanism according to any one of claims 1 to 9, wherein a plurality of first hydraulic components (11) are arranged at the upper end of the moving plate (4), the output end of each first hydraulic component (11) is fixedly connected with one end of a vertical rod (12), the other end of each vertical rod (12) is rotatably connected with a fixed block (14), the fixed block (14) is fixedly connected with the processing platform (3), a first spring (13) is arranged on each vertical rod (12), and a displacement detector (15) for detecting the working displacement of the first hydraulic component (11) is arranged on the moving plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133305.1A CN112157741A (en) | 2020-10-21 | 2020-10-21 | Thin wood board processing platform with clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011133305.1A CN112157741A (en) | 2020-10-21 | 2020-10-21 | Thin wood board processing platform with clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112157741A true CN112157741A (en) | 2021-01-01 |
Family
ID=73867788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011133305.1A Withdrawn CN112157741A (en) | 2020-10-21 | 2020-10-21 | Thin wood board processing platform with clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112157741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857878A (en) * | 2022-03-23 | 2022-08-05 | 湖南宏森新材料科技有限责任公司 | Plywood processing sunning frame |
-
2020
- 2020-10-21 CN CN202011133305.1A patent/CN112157741A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857878A (en) * | 2022-03-23 | 2022-08-05 | 湖南宏森新材料科技有限责任公司 | Plywood processing sunning frame |
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Application publication date: 20210101 |