Multi-shape bamboo board plane finishing device capable of changing planes

Abstract

The invention relates to the field of bamboo board finishing, in particular to a multi-shape bamboo board plane finishing device capable of changing planes. According to the multi-shape bamboo board plane trimming device capable of changing the planes, when the planes of bamboo boards are trimmed, the bamboo boards can be conveniently fixed and subjected to plane changing adjustment, and the plane trimming convenience of the bamboo boards is improved. A multi-shape bamboo board plane finishing device capable of changing planes comprises a base, limiting levers and the like, a leakage groove is formed in the base, chippings generated during finishing can be conveniently guided out, and the limiting levers are connected to the upper sides of the front portion and the rear portion of the base. According to the bamboo board plane trimming device, the bent clamping plates and the rear extending columns are matched with bamboo boards of different shapes, inclined planes or grooves of the bamboo boards of different shapes are fixed, and the rotatable inner ring is matched, so that the effects that when the planes of the bamboo boards are trimmed, the bamboo boards are conveniently fixed, the planes are conveniently replaced and adjusted, and the plane trimming convenience of the bamboo boards is improved can be achieved.

Description

Technical Field

[0001] The invention relates to the field of bamboo board trimming, and in particular to a multi-shaped bamboo board plane trimming device capable of changing the surface. Background Art

[0002] The production of bamboo boards mostly uses bamboo fiber extracted from bamboo materials and pressed into boards. Bamboo fiber is the fifth largest natural fiber after cotton, linen, wool and silk. It has good air permeability, instant water absorption, strong wear resistance and good dyeability. It has natural antibacterial, antibacterial, mite removal, deodorization and UV resistance functions, and is widely used in home decoration.

[0003] When the bamboo boards are assembled and installed, the external dimensions of the bamboo boards need to be adjusted according to the layout of the indoor construction area. The existing method of surface trimming of the bamboo boards in the construction area is usually for workers to hold trimming and grinding equipment, lay the bamboo boards flat, and grind and trim the surfaces that need to be trimmed. When the bamboo boards meet the construction and installation requirements, however, when trimming the surfaces of the bamboo boards, they are mostly fixed by the workers' limbs, which are unstable and inconvenient to perform trimming operations.

[0004] Therefore, a multi-shape bamboo board plane trimming device that can change the surface is developed, which can facilitate the fixing and changing of the bamboo board when trimming the bamboo board plane, thereby improving the convenience of trimming the bamboo board plane. Summary of the invention

[0005] In order to overcome the shortcomings of the existing bamboo board surface trimming, which is mostly fixed by workers' limbs and is inconvenient during trimming operations due to poor stability, the present invention provides a multi-shape bamboo board surface trimming device that can conveniently fix and change the surface of the bamboo board when trimming the bamboo board surface, thereby improving the convenience of trimming the bamboo board surface.

[0006] The technical solution of the present invention is: a multi-shape bamboo board plane trimming device capable of changing the surface, including a base, a limiting bar, a front seat, a middle knife holder, a rear seat and an angle adjustment mechanism. A leakage groove is opened on the base to facilitate the discharge of debris during trimming. The upper sides of the front and rear parts of the base are connected to limiting bars, the upper side of the right part of the base is connected to the front seat, the upper side of the left part of the base is connected to the middle knife holder, and the left side of the base is connected to the rear seat. The upper right part of the base is provided with an angle adjustment mechanism for clamping and adjusting the angles of bamboo boards of different shapes, and the front seat is provided with a centering mechanism for centering bamboo boards of different shapes.

[0007] Further explanation, the angle adjustment mechanism includes a side round seat, an inner ring, a transverse tightening slide, an extension column, a bent splint and a fixed angle column. A plurality of side round seats are connected to the upper right side of the base. The inner ring is rotatably connected between the side round seats, and transverse tightening slides are connected to the front and rear sides of the inner ring. The left and right parts of the transverse tightening slide are slidably connected to the extension column. The bent splints are connected on the side where the transverse tightening slides are close to each other, and the fixed angle column is slidably connected between the tops of the side round seats. The fixed angle column is clamped with the inner ring, and bamboo boards of different shapes are inserted into the inner ring from the right side of the base to the left. The bent splint and the extension column are driven to move by rotating the inner ring. The moving bent splint and the extension column are adapted to bamboo boards of different shapes, and the inclined surfaces or grooves of bamboo boards of different shapes are fixed. The inclined surfaces are clamped and fixed by the bent splints, and the grooves are fixed by sliding the extension columns close to each other and inserted into the bamboo board grooves. After the bamboo board is fixed, the inner ring is rotated, which can conveniently adjust the surface of the bamboo board that needs to be trimmed.

[0008] Further explanation: the centering mechanism includes an upper sliding pad, a side shaft, a telescopic arm, a bidirectional screw and a right-angle clamp. The upper sliding pad is connected to the top of the front seat, and the side shafts are connected to the front and rear sides of the front seat. The telescopic arm is rotatably connected between the side shafts, and the upper part of the telescopic arm is rotatably connected to the bidirectional screw. The front and rear parts of the bidirectional screw are both threadedly connected to the right-angle clamp, and the right-angle clamp is slidably connected to the telescopic arm. The rotation of the bidirectional screw controls the right-angle clamps to approach each other, thereby pushing bamboo boards of different shapes for centering.

[0009] Further description, it also includes a trimming mechanism for trimming the surface of the bamboo board, the trimming mechanism includes a long section arm, an L-shaped guard arm, a reset spring, a compression spring, a scraper and a pressing cylinder, the long section arm is rotatably connected between the side shafts, the left part of the long section arm is slidably connected to the L-shaped guard arm, a reset spring is connected between the lower left side of the long section arm and the base, the upper part of the L-shaped guard arm is slidably connected to the scraper, a compression spring is connected between the scraper and the L-shaped guard arm, the lower part of the L-shaped guard arm is rotatably connected to the pressing cylinder, the L-shaped guard arm drives the scraper to move left and right, and cooperates with the pressing cylinder and the compression spring to trim the surfaces of bamboo boards of different shapes, the left side of the long section arm is pressed to rotate the long section arm to control the angle of the L-shaped guard arm, and the inclined surface of the bamboo board is trimmed.

[0010] Further description, it also includes a chamfering mechanism for chamfering bamboo boards, the chamfering mechanism includes an opposing screw rod, a sleeve seat, a knife seat, a trimming knife and a transmission assembly, the upper part of the middle knife holder is rotatably connected to the opposing screw rod, the front and rear parts of the opposing screw rod are connected to the bidirectional screw rod with a transmission assembly, the transmission assembly includes a pulley and a transmission belt, the bidirectional screw rod and the front and rear parts of the opposing screw rod are connected to pulleys, a transmission belt is wound between the front and rear pulleys, the front and rear parts of the opposing screw rod are threadedly connected to the sleeve seat, and the sleeve seat is slidably connected to the middle knife holder Dynamic connection, the top of the sleeve is connected to a knife holder, and the knife holder is rotatably connected to a trimming knife. The opposite screw rods rotate through the sleeve to drive the knife holders to move closer or farther away from each other, and the movement of the knife holder drives the trimming knife to move. The trimming knife moves to adjust the trimming position, and the bamboo board is chamfered and trimmed. When the two-way screw rod controls the right-angle splint to center the main board, the opposite screw rod is driven to rotate through the transmission assembly. The opposite screw rod and the two-way screw rod rotate synchronously, and the main board is centered while the position of the trimming knife is adjusted, thereby improving the convenience of tool control.

[0011] Further explanation, it also includes a painting mechanism for painting bamboo boards, the painting mechanism includes a cantilever, a paint frame and a soft brush, the front and rear sides of the upper part of the rear stage seat are rotatably connected to the cantilever, the paint frame is rotatably connected between the upper parts of the cantilever, and the bottom of the paint frame is connected to a soft brush. The rotation of the cantilever and the paint frame adapts to the shape of the paint surface of bamboo boards of different shapes, and the paint is brushed on the surface of the bamboo board with the soft brush.

[0012] Further explanation is provided, which also includes a shaping mechanism for trimming and adjusting the shape of the bamboo board. The shaping mechanism includes a long rod, a tail table, a homogenizing cylinder and a heating nozzle. A plurality of long rods are connected to the left side of the rear seat, the tail table is connected between the left parts of the long rods, the upper part of the tail table is rotatably connected to the homogenizing cylinder, and the heating nozzle is connected between the right parts of the long rods. The bamboo board is heated by the heating nozzle, and the shape of the bamboo board is trimmed and adjusted in cooperation with the tail table and the homogenizing cylinder.

[0013] Further description: the paint frame is a paint box made of metal.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention adapts to bamboo boards of different shapes through the bent splints and the rear extension columns, fixes the inclined surfaces or grooves of bamboo boards of different shapes, and cooperates with the rotatable inner ring to facilitate the fixing and surface change adjustment of the bamboo boards when the plane of the bamboo boards is trimmed, thereby improving the convenience of trimming the plane of the bamboo boards.

[0015] 2. The present invention drives the scraper to move left and right through the L-shaped guard arm, and cooperates with the pressing cylinder and the compression spring to perform the operation of trimming the surfaces of bamboo boards of different shapes, which can facilitate the trimming work of removing burrs or thinning the surfaces of bamboo boards, thereby improving the convenience of the bamboo board surface trimming operation.

[0016] 3. The present invention drives the opposing screws to rotate through the transmission assembly. The opposing screws and the bidirectional screws rotate synchronously, and the main board is centered while adjusting the position of the trimming knife. This can achieve the chamfering operation on the bamboo board, facilitate the adjustment of the trimming knife, and improve the convenience of tool control.

[0017] 4. The present invention adapts to the shapes of the paint surfaces of bamboo boards of different shapes by rotating the cantilever and the paint frame, and paint is applied to the surface of the bamboo board by a soft brush, which can achieve the effect of facilitating the painting operation of the bamboo board.

[0018] 5. The present invention heats the bamboo board through the heating nozzle, and cooperates with the tail stage and the homogenizing cylinder to extrude the bamboo board, so as to achieve the effect of trimming the shape of the bamboo board and improving the convenience of trimming the shape of the bamboo board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the present invention.

[0021] Figure 3 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the angle adjustment mechanism of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the centering mechanism of the present invention.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the trimming mechanism of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the chamfering mechanism of the present invention.

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the painting mechanism and the shaping mechanism of the present invention.

[0027] Markings in the attached drawings: 1: base, 2: limit bar, 3: front seat, 4: middle tool holder, 5: back seat, 6: angle adjustment mechanism, 61: side round seat, 62: inner ring, 63: horizontal tightening slide, 64: rear extension column, 65: bending splint, 66: fixed angle column, 7: centering mechanism, 71: upper slide pad, 72: side shaft, 73: telescopic arm, 74: two-way screw rod, 75: right-angle splint, 8: trimming mechanism, 81: long section arm, 82 : L-shaped guard arm, 83: return spring, 84: compression spring, 85: scraper, 86: pressing cylinder, 9: chamfering mechanism, 91: opposing screw rod, 92: sleeve, 93: knife seat, 94: trimming knife, 95: transmission assembly, 10: painting mechanism, 101: cantilever, 102: paint frame, 103: soft brush, 11: shaping mechanism, 111: long rod, 112: tail platform, 113: homogenizing cylinder, 114: heating nozzle. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0029] A multi-shaped bamboo board plane trimming device capable of changing the surface, such as Figure 1-Figure 3 As shown, it includes a base 1, a limiting bar 2, a front seat 3, a middle tool holder 4, a rear seat 5 and an angle adjustment mechanism 6. A leakage groove is opened on the base 1 to facilitate the discharge of debris during trimming. The upper sides of the front and rear parts of the base 1 are connected to the limiting bars 2, the upper side of the right part of the base 1 is connected to the front seat 3, the upper side of the left part of the base 1 is connected to the middle tool holder 4, the left side of the base 1 is connected to the rear seat 5, the upper right part of the base 1 is provided with an angle adjustment mechanism 6, and the front seat 3 is provided with a centering mechanism 7.

[0030] like Figure 1 , Figure 2 and Figure 4 As shown, the angle adjustment mechanism 6 includes a side round seat 61, an inner ring 62, a transverse tightening slide 63, a rear extension column 64, a bent clamp 65 and a fixed angle column 66. A plurality of side round seats 61 are connected to the upper right side of the base 1, and the inner ring 62 is rotatably connected between the side round seats 61. The front and rear sides of the inner ring 62 are both connected to the transverse tightening slide 63, and the left and right parts of the transverse tightening slide 63 are both slidably connected to the rear extension column 64. The side of the transverse tightening slide 63 that is close to each other is connected to the bent clamp 65. The fixed angle column 66 is slidably connected between the tops of the side round seats 61, and the fixed angle column 66 is clamped with the inner ring 62.

[0031] like Figure 1 , Figure 2 and Figure 5As shown, the centering mechanism 7 includes an upper sliding pad 71, a side shaft 72, a telescopic arm 73, a bidirectional screw rod 74 and a right-angle clamp 75. The upper sliding pad 71 is connected to the top of the front seat 3, and the side shafts 72 are connected to the front and rear sides of the front seat 3. The telescopic arm 73 is rotatably connected between the side shafts 72, and the upper part of the telescopic arm 73 is rotatably connected to the bidirectional screw rod 74, and the front and rear parts of the bidirectional screw rod 74 are both threadedly connected to the right-angle clamp plate 75, and the right-angle clamp plate 75 is slidably connected to the telescopic arm 73.

[0032] When the present invention is in use, the base 1 is first placed in the bamboo board construction and use area, and the bamboo boards of different shapes that need to be trimmed are inserted from the right side of the base 1 to the left into the inner ring 62, and the inner ring 62 is rotated by the horizontal tightening slide 63 to drive the bending clamp 65 and the rear extension column 64 to move, and the moving bending clamp 65 and the rear extension column 64 are adapted to the bamboo boards of different shapes, and the inclined surfaces or grooves of the bamboo boards of different shapes are fixed. The inclined surfaces are clamped and fixed by the bending clamp 65, and the grooves are fixed by sliding the rear extension column 64 close to each other and inserted into the bamboo board grooves. After the bamboo boards are fixed, the inner ring 62 is rotated to facilitate the adjustment of the surface of the bamboo boards that need to be trimmed. After the board is adjusted, After completion, rotate the bidirectional screw rod 74, and the bidirectional screw rod 74 rotates to control the right-angle clamps 75 to move closer to each other, pushing bamboo boards of different shapes to be centered, and fixing the bamboo boards while correcting the placement of the bamboo boards. Then, you can use the grinding equipment to grind the surface of the bamboo boards and trim the plane of the bamboo boards to facilitate construction and installation. The above-mentioned bent clamps 65 and the rear extension columns 64 are adapted to bamboo boards of different shapes, and the inclined surfaces or grooves of bamboo boards of different shapes are fixed. In conjunction with the rotatable inner ring 62, it is possible to achieve the effect of facilitating the fixing and changing of the bamboo boards when trimming the plane of the bamboo boards, thereby improving the convenience of trimming the plane of the bamboo boards.

[0033] like Figure 1 , Figure 2 and Figure 6 As shown, it also includes a trimming mechanism 8, which includes a long arm 81, an L-shaped guard arm 82, a return spring 83, a compression spring 84, a scraper 85 and a pressing cylinder 86. The long arm 81 is rotatably connected between the side shafts 72, the left part of the long arm 81 is slidably connected to the L-shaped guard arm 82, the return spring 83 is connected between the lower left side of the long arm 81 and the base 1, the scraper 85 is slidably connected to the upper part of the L-shaped guard arm 82, a compression spring 84 is connected between the scraper 85 and the L-shaped guard arm 82, and the lower part of the L-shaped guard arm 82 is rotatably connected to the pressing cylinder 86.

[0034] The trimming mechanism 8 of the present invention can be used to conveniently trim the surface of the bamboo board. After the bamboo board is fixed, the scraper 85 is driven to move left and right by the L-shaped guard arm 82, and the surfaces of bamboo boards of different shapes are trimmed in cooperation with the pressing cylinder 86 and the compression spring 84. The left side of the long section arm 81 is pressed to rotate the long section arm 81 to control the angle of the L-shaped guard arm 82 to trim the inclined surface of the bamboo board. The scraper 85 moves to contact the surface of the bamboo board, and can thin the surface of the bamboo board or clean the barbs on the surface of the bamboo board. The operations of removing barbs and thinning the bamboo board can be switched according to the force of pressing the scraper 85. The scraper 85 is driven to move left and right by the above-mentioned L-shaped guard arm 82, and the surfaces of bamboo boards of different shapes are trimmed in cooperation with the pressing cylinder 86 and the compression spring 84, which can achieve the purpose of facilitating the trimming work of removing burrs or thinning the surface of the bamboo board, thereby improving the convenience of the trimming operation of the bamboo board surface.

[0035] like Figure 1 , Figure 2 and Figure 7 As shown, it also includes a chamfering mechanism 9, which includes an opposing screw rod 91, a sleeve 92, a knife seat 93, a trimming knife 94 and a transmission assembly 95. The upper part of the middle knife holder 4 is rotatably connected to the opposing screw rod 91, and the front and rear parts of the opposing screw rod 91 are connected to the bidirectional screw rod 74 with a transmission assembly 95. The transmission assembly 95 includes a pulley and a transmission belt. The front and rear parts of the bidirectional screw rod 74 and the opposing screw rod 91 are both connected with pulleys, and a transmission belt is wound between the front and rear pulleys. The front and rear parts of the opposing screw rod 91 are both threadedly connected to the sleeve seat 92, and the sleeve seat 92 is slidably connected to the middle knife holder 4. The top of the sleeve seat 92 is connected to the knife seat 93, and the knife seat 93 is rotatably connected to the trimming knife 94.

[0036] The chamfering mechanism 9 of the present invention can be used to conveniently perform chamfering operations on bamboo boards. When the bamboo boards need to be chamfered, the opposing screw rods 91 are rotated, and the opposing screw rods 91 are rotated through the sleeve 92 to drive the knife seats 93 to move closer or farther from each other. The knife seats 93 move to drive the trimming knife 94 to move, and the trimming knife 94 moves to adjust the trimming position, and then the bamboo board is pushed to squeeze the trimming knife 94, and the trimming knife 94 cuts the bamboo board, and the bamboo board is chamfered and trimmed. When the bidirectional screw rod 74 controls the right-angle clamp 75 to be centered on the main board, the opposing screw rod 91 is driven by the transmission component 95. The opposing screw rod 91 and the bidirectional screw rod 74 rotate synchronously, the main plate is centered and the position of the trimming knife 94 is adjusted at the same time, thereby improving the convenience of tool control. When chamfering operation is not needed, the trimming knife 94 can be rotated. The opposing screw rod 91 is driven to rotate by the above-mentioned transmission assembly 95, and the opposing screw rod 91 and the bidirectional screw rod 74 rotate synchronously. The main plate is centered and the position of the trimming knife 94 is adjusted at the same time, thereby achieving the chamfering operation on the bamboo board, facilitating the adjustment of the trimming knife 94, and improving the convenience of tool control.

[0037] like Figure 1 , Figure 2 and Figure 8 As shown, it also includes a painting mechanism 10, which includes a cantilever 101, a paint frame 102 and a soft brush 103. The cantilever 101 is rotatably connected to the front and rear sides of the upper part of the rear base 5, and the paint frame 102 is rotatably connected between the upper parts of the cantilever 101. The paint frame 102 is a paint box made of metal, and a soft brush 103 is connected to the bottom of the paint frame 102.

[0038] By using the painting mechanism 10 of the present invention, it is possible to perform painting operations on bamboo boards. When it is necessary to paint the bamboo boards, the cantilever 101 and the paint frame 102 are adjusted according to the shape of the bamboo boards. The rotation of the cantilever 101 and the paint frame 102 adapts to the shape of the paint surface of the bamboo boards with different shapes. Then, the bamboo board is pushed to the left, and the paint is applied to the surface of the bamboo board by the soft brush 103. By rotating the cantilever 101 and the paint frame 102 to adapt to the shape of the paint surface of the bamboo boards with different shapes, the paint is applied to the surface of the bamboo board by the soft brush 103, which can facilitate the painting operation on the bamboo boards.

[0039] like Figure 1 , Figure 2 and Figure 8 As shown, it also includes a shaping mechanism 11, which includes a long rod 111, a tail table 112, a homogenizing cylinder 113 and a heating nozzle 114. A plurality of long rods 111 are connected to the left side of the rear base 5, the tail table 112 is connected between the left parts of the long rods 111, the homogenizing cylinder 113 is rotatably connected to the upper part of the tail table 112, and the heating nozzle 114 is connected between the right parts of the long rods 111.

[0040] By using the shaping mechanism 11 of the present invention, the shape of the bamboo board can be trimmed and adjusted. When the shape of the bamboo board needs to be trimmed, the bamboo board is heated by the heating nozzle 114, and the tail stage 112 and the homogenizing cylinder 113 are used to extrude the bamboo board to trim and adjust the shape of the bamboo board. By heating the bamboo board by the heating nozzle 114, and the tail stage 112 and the homogenizing cylinder 113 are used to extrude the bamboo board, the shape of the bamboo board can be trimmed, thereby improving the convenience of trimming the shape of the bamboo board.

[0041] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A multi-shaped bamboo board surface trimming device capable of changing the surface, characterized in that: The utility model comprises a base (1), a limiting bar (2), a front seat (3), a middle knife holder (4), a rear seat (5) and an angle adjustment mechanism (6). The base (1) is provided with a drain groove for conveniently discharging debris during trimming. The upper sides of the front and rear parts of the base (1) are both connected with limiting bars (2). The upper side of the right part of the base (1) is connected with the front seat (3). The upper side of the left part of the base (1) is connected with the middle knife holder (4). The left side of the base (1) is connected with the rear seat (5). The upper right part of the base (1) is provided with an angle adjustment mechanism (6) for clamping and adjusting the angle of bamboo boards of different shapes. The front seat (3) is provided with a centering mechanism (7) for centering bamboo boards of different shapes.

2. The multi-shaped bamboo board plane trimming device capable of changing the surface according to claim 1 is characterized in that: The angle adjustment mechanism (6) comprises a side round seat (61), an inner ring (62), a transverse tightening slide (63), a rear extension column (64), a bent clamp (65) and a fixed angle column (66). A plurality of side round seats (61) are connected to the upper right side of the base (1). The side round seats (61) are rotatably connected to the inner ring (62). The front and rear sides of the inner ring (62) are both connected to the transverse tightening slide (63). The left and right sides of the transverse tightening slide (63) are both slidably connected to the rear extension column (64). The sides of the transverse tightening slide (63) close to each other are both connected to the bent clamp (65). The tops of the side round seats (61) are slidably connected to the fixed angle column (66). The column (66) is clamped with the inner ring (62), and bamboo boards of different shapes are inserted into the inner ring (62) from the right side of the base (1) to the left side. The inner ring (62) is rotated to drive the bending clamp (65) and the rear extension column (64) to move by the horizontal tightening slide (63). The bending clamp (65) and the rear extension column (64) are moved to adapt to bamboo boards of different shapes, and the inclined surfaces or grooves of bamboo boards of different shapes are fixed. The inclined surfaces are clamped and fixed by the bending clamp (65), and the grooves are fixed by sliding the rear extension column (64) to approach each other and penetrate into the bamboo board groove. After the bamboo board is fixed, the inner ring (62) is rotated to facilitate the adjustment of the surface of the bamboo board that needs to be trimmed.

3. The multi-shaped bamboo board plane trimming device capable of changing the surface according to claim 2 is characterized in that: The centering mechanism (7) comprises an upper sliding pad (71), a side shaft (72), a telescopic arm (73), a bidirectional screw rod (74) and a right-angle clamp (75). The top of the front seat (3) is connected to the upper sliding pad (71). The front and rear sides of the front seat (3) are both connected to the side shafts (72). The telescopic arm (73) is rotatably connected between the side shafts (72). The upper part of the telescopic arm (73) is rotatably connected to the bidirectional screw rod (74). The front and rear parts of the bidirectional screw rod (74) are both threadedly connected to the right-angle clamp (75). The right-angle clamp (75) is slidably connected to the telescopic arm (73). The bidirectional screw rod (74) rotates to control the right-angle clamp (75) to approach each other, so as to push the bamboo boards of different shapes to be centered.

4. The multi-shaped bamboo board plane trimming device capable of changing the surface according to claim 3 is characterized by: The invention also comprises a trimming mechanism (8) for trimming the surface of the bamboo board, wherein the trimming mechanism (8) comprises a long section arm (81), an L-shaped guard arm (82), a return spring (83), a compression spring (84), a scraper (85) and a pressing cylinder (86), wherein the long section arm (81) is rotatably connected between the side shafts (72), the left part of the long section arm (81) is slidably connected to the L-shaped guard arm (82), the lower side of the left part of the long section arm (81) and the base (1) is connected to the return spring (83), and the upper part of the L-shaped guard arm (82) is connected to the base (1). A scraper (85) is slidably connected to the upper part, a compression spring (84) is connected between the scraper (85) and the L-shaped guard arm (82), a pressing cylinder (86) is rotatably connected to the lower part of the L-shaped guard arm (82), the L-shaped guard arm (82) drives the scraper (85) to move left and right, cooperates with the pressing cylinder (86) and the compression spring (84) to trim the surface of bamboo boards of different shapes, presses the left side of the long section arm (81), and makes the long section arm (81) rotate to control the angle of the L-shaped guard arm (82), so as to trim the inclined surface of the bamboo board.

5. The multi-shaped bamboo board plane trimming device capable of changing the surface according to claim 4 is characterized in that: The invention also comprises a chamfering mechanism (9) for chamfering a bamboo board. The chamfering mechanism (9) comprises a counter screw (91), a sleeve seat (92), a knife seat (93), a trimming knife (94) and a transmission assembly (95). The upper part of the middle knife holder (4) is rotatably connected to the counter screw (91). The front and rear parts of the counter screw (91) are connected to the bidirectional screw (74) with a transmission assembly (95). The transmission assembly (95) comprises a pulley and a transmission belt. The front and rear parts of the bidirectional screw (74) and the counter screw (91) are connected to pulleys. A transmission belt is wound between the front and rear pulleys. The front and rear parts of the counter screw (91) are threadedly connected to the sleeve seat (92). The sleeve seat (92) is slidably connected to the middle knife holder (4). The top of the sleeve (92) is connected with a knife seat (93), and the knife seat (93) is rotatably connected with a corner trimming knife (94). The opposite screw rod (91) rotates through the sleeve (92) to drive the knife seat (93) to move closer to or farther away from each other. The knife seat (93) moves to drive the corner trimming knife (94). The corner trimming knife (94) moves to adjust the corner trimming position, and the bamboo board is chamfered and trimmed. When the bidirectional screw rod (74) controls the right-angle clamping plate (75) to center the main board, the transmission component (95) drives the opposite screw rod (91) to rotate, and the opposite screw rod (91) and the bidirectional screw rod (74) rotate synchronously. The main board is centered and the position of the corner trimming knife (94) is adjusted, thereby improving the convenience of tool control.

6. The multi-shaped bamboo board surface trimming device capable of changing the surface according to claim 5 is characterized in that: The invention also comprises a painting mechanism (10) for painting the bamboo board. The painting mechanism (10) comprises a cantilever (101), a paint frame (102) and a soft brush (103). The cantilever (101) is rotatably connected to both the front and rear sides of the upper part of the rear base (5). The paint frame (102) is rotatably connected between the upper parts of the cantilever (101). The bottom of the paint frame (102) is connected to the soft brush (103). The cantilever (101) and the paint frame (102) rotate to adapt to the shapes of the paint surfaces of the bamboo boards with different shapes. The paint is applied to the surface of the bamboo boards by the soft brush (103).

7. The multi-shaped bamboo board plane trimming device capable of changing the surface according to claim 6 is characterized by: The invention also comprises a shaping mechanism (11) for trimming and adjusting the shape of the bamboo board. The shaping mechanism (11) comprises a long rod (111), a tail table (112), a homogenizing cylinder (113) and a heating nozzle (114). The left side of the rear base (5) is connected to a plurality of long rods (111). The tail table (112) is connected between the left parts of the long rods (111). The upper part of the tail table (112) is rotatably connected to the homogenizing cylinder (113). The right parts of the long rods (111) are connected to the heating nozzle (114). The bamboo board is heated by the heating nozzle (114), and the shape of the bamboo board is trimmed and adjusted in cooperation with the tail table (112) and the homogenizing cylinder (113).

8. The multi-shaped bamboo board surface trimming device capable of changing the surface according to claim 6 is characterized by: The paint frame (102) is a paint box made of metal.

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