A composite board production surface grinding device and surface grinding method thereof

Abstract

The present invention relates to the field of composite board processing equipment, and in particular to a composite board production surface grinding device and a surface grinding method thereof, comprising a ring shell with an opening at the bottom, a shaft cylinder rotatably penetrates the center position of the top surface of the ring shell, a shaft rod rotatably penetrates the shaft cylinder, the shaft cylinder and the shaft rod are connected to a driving device at the top of the shaft cylinder, a rotating frame rotatably disposed inside the ring shell, the shaft rod and the rotating frame are concentrically fixed, a plurality of grinding discs are rotated at the edge of the rotating frame, the grinding discs are connected to the shaft cylinder through a belt transmission, and the bottom of the grinding disc protrudes from the bottom of the ring shell. The present invention adopts multiple groups of evenly distributed grinding discs to rotate synchronously to grind the composite board, and at the same time drives the multiple groups of grinding discs to rotate and transpose through the rotating frame to realize self-rotation and revolution coordinated grinding, further promotes the complexity of the grinding path, expands the grinding range, and is conducive to peeling off the concave and convex parts near the splicing line of the composite board, thereby improving the grinding efficiency.

Description

Technical Field

[0001] The present invention relates to the field of composite plate processing equipment, and in particular to a composite plate production surface grinding device and a surface grinding method thereof. Background Art

[0002] Composite wood boards, also known as artificial boards, are made by aggregating and splicing scattered wood. Compared with integrated wood boards, they have higher economic value and make full use of wood.

[0003] Surface grinding is an important process in the processing of composite wood boards. Since the surface of composite wood boards has many splicing lines, more delicate grinding operations are required. Existing composite wood board surface grinding is generally completed using a grinding belt or a grinding sheet. The grinding belt or the grinding sheet is moved relative to the surface of the composite board to make the surface of the composite board be ground into a relatively flat surface.

[0004] Since the surface of the composite board has many splicing lines and no complete texture, it is not suitable for unidirectional grinding. The grinding effect of the rotating grinding wheel is better than that of the grinding belt. However, the existing grinding wheel relies on circular rotation to grind the composite board. The friction path within the processing range is still relatively regular, and the peeling strength of the concave and convex parts around the splicing lines needs to be improved. Summary of the Invention

[0005] The purpose of the present invention is to solve the following problems existing in the prior art: the existing grinding disc relies on circular rotation to grind the composite plate, the friction path within the processing range is still relatively regular, and the peeling strength of the concave and convex parts around the splicing line needs to be improved.

[0006] In order to solve the problems existing in the prior art, the present invention provides a surface grinding device for composite board production, comprising a ring shell with an open bottom, a shaft cylinder rotating and passing through the center position of the top surface of the ring shell, a shaft rod rotating and passing through the shaft cylinder, the shaft cylinder and the top of the shaft rod are connected to the driving device for transmission, a rotating rack rotating inside the ring shell, the shaft rod and the rotating rack are fixed concentrically, multiple grinding discs rotate on the edge of the rotating rack, the grinding discs are connected to the shaft cylinder through a belt transmission, and the bottom of the grinding disc protrudes from the bottom of the ring shell.

[0007] Preferably, the driving device includes a motor, which is connected to the shaft cylinder through a gear set. The shaft cylinder is fixed with a first gear, the first gear is meshingly connected with the second gear, the second gear is coaxially fixed with a third gear, and the shaft rod is fixed with a fourth gear, which is meshingly connected with the third gear.

[0008] Preferably, the transmission ratio between the first gear and the fourth gear is -:.

[0009] Preferably, there are at least two grinding discs, which are distributed at equal angles around the edge of the rotating frame.

[0010] Preferably, a ring rail is fixed on the inner wall of the ring housing, and a roller is rotated on the edge of the rotating frame. The cross section of the ring rail is triangular, and the middle of the roller has a recessed portion adapted to the ring rail.

[0011] Preferably, the grinding disc includes a turntable, the bottom surface of which is evenly fixed with grinding discs, the top of which is fixed with a rotating shaft, the rotating shaft is rotatably connected to the rotating frame, and the shaft cylinder is connected to the rotating shaft through a belt transmission.

[0012] Preferably, the upper part of the turntable is covered with a cover shell, which is fixedly connected to the turntable. An adsorption space is formed between the upper part of the turntable and the cover shell, and a fan blade fixedly connected to the rotating shaft is provided in the adsorption space. The surface of the turntable is provided with an oblique opening between the grinding plates, and the oblique opening is inclined from top to bottom and points to the direction of rotation of the turntable. A guide cylinder is connected to the top of the cover shell, and a storage assembly is provided at the edge of the ring shell, and the top end of the guide cylinder points to the storage assembly.

[0013] Preferably, the storage assembly includes a sleeve shell, the inner wall of the sleeve shell is provided with a through opening, the sleeve shell is threadedly connected to the outer wall of the sleeve shell, the inner side of the sleeve shell passes through the through opening, and the outer wall of the sleeve shell is encapsulated with a filter screen.

[0014] A method for polishing the surface of a composite plate based on the polishing device according to any one of claims 1 to 5, comprising the following specific steps:

[0015] A. The motor cooperates with the first gear, the second gear, the third gear, and the fourth gear to transmit the variable ratio, so that the shaft tube and the shaft rod rotate at a differential speed;

[0016] B. The shaft drives the grinding disc to rotate synchronously through the belt. The bottom surface of the rotating grinding disc contacts the surface of the composite board and rotates and grinds the surface of the composite board;

[0017] C. The shaft drives the rotating frame to rotate, so that multiple sets of grinding discs rotate around the shaft while rotating on their own to change the grinding range.

[0018] Compared with related technologies, the composite board production surface grinding device and surface grinding method provided by the present invention have the following beneficial effects:

[0019] 1. The present invention uses multiple groups of evenly distributed grinding discs to rotate synchronously to grind the composite board. At the same time, the rotating frame drives the multiple groups of grinding discs to rotate and transpose, realizing the coordinated grinding of rotation and revolution, further promoting the complexity of the grinding path, expanding the grinding range, and facilitating the stripping of the concave and convex parts near the splicing line of the composite board, thereby improving the grinding efficiency.

[0020] 2. The present invention adopts fan blades to rotate with the turntable, forming wind drive during the grinding process, which is used to conduct and collect wood chips generated during grinding, effectively avoiding the influence of wood chip accumulation on grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is one of the overall structural diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the housing installation structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the rotating mounting structure of the rotary rack of the present invention;

[0026] Figure 6 This is one of the schematic diagrams of the grinding disc structure of the present invention;

[0027] Figure 7 This is the second schematic diagram of the grinding disc structure of the present invention.

[0028] Numbers in the figure: 1. Ring housing; 2. Motor; 21. First gear; 22. Second gear; 23. Third gear; 24. Fourth gear; 25. Protective shell; 3. Sleeve shell; 31. Filter screen; 32. Through port; 4. Grinding disc; 41. Turntable; 42. Grinding disc; 43. Bevel; 44. Rotating shaft; 45. Cover; 46. Fan blade; 5. Rotating frame; 51. Roller; 6. Ring rail; 7. Shaft cylinder; 8. Shaft rod; 9. Guide cylinder; 10. Handle frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0031] Example 1

[0032] like Figure 1-5 As shown, a surface grinding device for composite board production uses a ring shell 1 as the main body. The ring shell 1 is a circular shell with an open bottom. A ring rail 6 is fixed to the inner wall of the ring shell 1. The cross section of the ring rail 6 is triangular. The rotating frame 5 is cross-shaped. The four ends of the rotating frame 5 are rotatably mounted with rollers 51. The middle part of the roller 51 has a recessed portion, so that the roller 51 and the ring rail 6 are rollingly engaged, realizing unobstructed rotation of the rotating frame 5 in the ring shell 1. Two handles 10 are symmetrically fixed to the outer wall of the ring shell 1.

[0033] The combination of the roller 51 and the ring rail 6 limits the height of the rotating frame 5, but allows it to rotate around the inner wall of the ring shell 1 without any obstacles.

[0034] like Figure 3-5 As shown, the shaft 8 is fixedly connected to the center position of the rotating frame 5 and extends vertically upward. The shaft cylinder 7 rotates and passes through the center position of the top surface of the ring shell 1. The shaft 8 rotates and passes through the shaft cylinder 7 through the bearing. A protective shell 25 is fixedly installed on the top surface of the ring shell 1. The shaft cylinder 7 and the shaft 8 penetrate the protective shell 25, and the shaft 8 protrudes from the top of the shaft cylinder 7. The motor 2 is fixedly connected to the protective shell 25. The shaft end of the motor 2 is connected to the shaft cylinder 7 through a bevel gear set. A first gear 21 is fixed on the surface of the shaft cylinder 7. A second gear 22 and a third gear 23 are coaxially fixed in the protective shell 25. The second gear 22 is meshed with the first gear 21. A fourth gear 24 is fixed to the top of the shaft rod 8. The fourth gear 24 is meshed with the third gear 23. The transmission ratio of the first gear 21 to the fourth gear 24 is 10-15:1.

[0035] The motor 2 is turned on to drive the shaft cylinder 7 to rotate, so that the shaft cylinder 7 keeps rotating at a high speed. Under the linkage of the first gear 21, the second gear 22, the third gear 23, and the fourth gear 24, the shaft rod 8 rotates. The speed of the shaft rod 8 is much lower than the speed of the shaft cylinder 7.

[0036] like Figure 6 As shown, four grinding discs 4 are mounted on the four ends of the rotating frame 5. The grinding discs 4 include a rotating disc 41. Abrasive discs 42 are evenly fixed on the bottom surface of the rotating disc 41. The rotating disc 41 protrudes from the bottom of the ring shell 1. A rotating shaft 44 is fixed on the top of the rotating disc 41. The rotating shaft 44 is rotatably connected to the rotating frame 5. The shaft cylinder 7 is synchronously driven by four sets of belts to connect the four rotating shafts 44.

[0037] The rotating shaft cylinder 7 rotates synchronously through the belt-driven shaft 44, so that the grinding disc 42 at the bottom of the turntable 41 rotates to grind the surface of the composite board. At the same time, the shaft 8 drives the turntable 5 to drive the four sets of grinding discs 4 to rotate in rotation, so that the turntable 41 rotates to grind the surface of the composite board while rotating around the shaft 8 to rotate the grinding range, further promoting the complexity of the grinding path, expanding the grinding range, and being conducive to peeling off the concave and convex parts near the splicing line of the composite board, thereby improving the grinding efficiency.

[0038] Example 2

[0039] like Figure 4 、 6 As shown in Figures 7 and 8, the storage assembly includes a casing 3, which is provided with a through opening 32 around the ring shell 1. A plurality of cylinders are provided between the through openings 32 to connect the upper and lower parts of the ring shell 1. The through opening 32 forms an annular discharge space. An external thread is provided from top to bottom on the outside of the ring shell 1. The casing 3 is an annular shell. An internal thread is provided on the inner wall of the casing 3. The casing 3 is threadedly sleeved on the outside of the ring shell 1, and the inner ring of the casing 3 has an opening connected to the through opening 32. The outer ring surface of the casing 3 is evenly provided with a filter screen 31.

[0040] A conical cover 45 is provided on the upper portion of the turntable 41. An adsorption space is formed between the turntable 41 and the cover 45. The cover 45 is fixedly connected to the rotating frame 5. Fan blades 46 are provided in the adsorption space. The fan blades 46 are fixedly connected to the rotating shaft 44. An oblique opening 43 is provided on the surface of the turntable 41 between the grinding discs 42, penetrating the adsorption space. The oblique opening 43 is inclined downward from top to bottom and points in the direction of rotation of the turntable 41. The top of the cover 45 is connected to a guide tube 9, which is bent and points to the through opening 32.

[0041] When the turntable 41 drives the grinding disc 42 to rotate and grind the composite board, the rotating shaft 44 drives the fan blade 46 to rotate at a high speed, so that an upward-driven airflow is formed in the adsorption space, and the wood chips generated by grinding are introduced into the adsorption space from the oblique mouth 43 through the airflow. Driven by the airflow, the wood chips are introduced into the shell 3 from the opening 32 through the guide cylinder 9, and the airflow is discharged from the filter 31. The wood chips are retained in the shell 3 to prevent the wood chips generated during processing from affecting the continuous grinding. The shell 3 will be disassembled later and the wood chips will be taken out in a centralized manner.

[0042] Example 3

[0043] A method for polishing the surface of a composite plate based on the polishing device according to any one of claims 1 to 8, comprising the following specific steps:

[0044] A. The motor 2 cooperates with the first gear 21, the second gear 22, the third gear 23, and the fourth gear 24 to transmit variable ratio transmission, so that the shaft cylinder 7 and the shaft rod 8 rotate at a differential speed;

[0045] B. The shaft cylinder 7 drives the grinding disc 4 to rotate synchronously through the belt. The bottom surface of the rotating grinding disc 4 contacts the surface of the composite board and rotates and grinds the surface of the composite board;

[0046] C. The shaft 8 drives the rotating frame 5 to rotate, so that the multiple groups of grinding discs 4 rotate around the shaft 8 while rotating to change the grinding range.

Claims

1. A surface grinding device for composite board production, comprising a ring shell (1) with an opening at the bottom, characterized in that: A shaft cylinder (7) is rotatably penetrated at the center of the top surface of the ring shell (1), a shaft rod (8) is rotatably penetrated inside the shaft cylinder (7), the shaft cylinder (7) and the shaft rod (8) are connected to the driving device at the top, a rotating frame (5) is rotatably disposed inside the ring shell (1), the shaft rod (8) is fixed concentrically with the rotating frame (5), a plurality of grinding discs (4) are rotatably disposed at the edge of the rotating frame (5), the grinding discs (4) are connected to the shaft cylinder (7) through a belt, and the bottom of the grinding discs (4) protrudes from the bottom of the ring shell (1); The grinding discs (4) have at least two grinding discs (4), and the grinding discs (4) are distributed at equal angles around the edge of the rotating frame (5); The grinding disc (4) comprises a rotating disc (41), grinding discs (42) are evenly fixed on the bottom surface of the rotating disc (41), a rotating shaft (44) is fixed on the top of the rotating disc (41), the rotating shaft (44) is rotatably connected to the rotating frame (5), and the shaft cylinder (7) is transmission-connected to the rotating shaft (44) via a belt; The upper part of the rotating disk (41) is covered with a cover shell (45), the cover shell (45) is fixedly connected to the rotating frame (5), an adsorption space is formed between the upper part of the rotating disk (41) and the cover shell (45), a fan blade (46) fixedly connected to the rotating shaft (44) is provided in the adsorption space, the surface of the rotating disk (41) is provided with an oblique opening (43) between the grinding plates (42), the oblique opening (43) is inclined from top to bottom and points to the rotation direction of the rotating disk (41), the top of the cover shell (45) is connected to a guide cylinder (9), the edge of the ring shell (1) has a storage assembly, and the top end of the guide cylinder (9) points to the storage assembly; The storage assembly comprises a sleeve (3), the inner wall of the ring shell (1) is provided with a through hole (32), the sleeve (3) is threadedly connected to the outer wall of the ring shell (1), the inner side of the sleeve (3) is penetrated by the through hole (32), and the outer wall of the sleeve (3) is encapsulated with a filter screen (31).

2. The composite board production surface grinding device according to claim 1, characterized in that: The driving device comprises a motor (2), the motor (2) being transmission-connected to a shaft cylinder (7) via a gear set, a first gear (21) being fixed to the shaft cylinder (7), the first gear (21) being meshingly connected to a second gear (22), a third gear (23) being coaxially fixed to the second gear (22), a fourth gear (24) being fixed to the shaft rod (8), the fourth gear (24) being meshingly connected to the third gear (23).

3. The composite board production surface grinding device according to claim 2, characterized in that: The transmission ratio between the first gear (21) and the fourth gear (24) is 10-15:

1.

4. The composite board production surface grinding device according to claim 1, characterized in that: A circular rail (6) is fixed to the inner wall of the ring housing (1), and a roller (51) is rotatably mounted on the edge of the rotating frame (5). The cross section of the circular rail (6) is triangular, and the middle of the roller (51) has a recessed portion adapted to the circular rail (6).

5. A composite plate surface grinding method based on the grinding device according to any one of claims 1 to 4, characterized in that: The specific steps are as follows: A. The motor (2) cooperates with the first gear (21), the second gear (22), the third gear (23), and the fourth gear (24) to perform variable ratio transmission, so that the shaft cylinder (7) and the shaft rod (8) rotate at a differential speed; B. The shaft cylinder (7) drives the grinding disc (4) to rotate synchronously via a belt, and the bottom surface of the rotating grinding disc (4) contacts the surface of the composite plate to rotate and grind the surface of the composite plate; C. The shaft (8) drives the rotating frame (5) to rotate, so that the multiple groups of grinding discs (4) rotate around the shaft (8) while rotating to change the grinding range.

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