A composite board center positioning and edge cutting device

Abstract

The application relates to the technical field of composite board production, in particular to a composite board center positioning and edge cutting equipment, which comprises edge cutting devices arranged on the two sides of a composite board, a center detector is arranged at the middle position of the edge cutting devices on the two sides of the composite board, and the center detector is used for detecting the position of a center line on the lower surface of the composite board. The application has the effect that the two sides of the copper-aluminum composite board can be cut in a relatively uniform manner.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of composite board production, in particular to a composite board center positioning and edge cutting device. BACKGROUND

[0002] The composite board is formed by stacking and bonding multiple structural layers, and the commonly used copper-aluminum composite board is formed by compounding at least one copper plate and at least one aluminum plate. Since copper in the copper-aluminum composite board has good electrical conductivity, and aluminum has the advantages of low price and light weight, the copper-aluminum composite board is preliminarily applied more widely in the development process of new energy electric vehicles. Through the copper-aluminum composite board, the current requirement can be met, and the total weight of the new energy vehicle can be reduced, and the production cost can be reduced. In the production process of the copper-aluminum composite board, copper is first processed into a roll shape, and then the copper is unfolded and compounded with the aluminum plate. In the compounding process, the aluminum is heated to a molten state, so that the aluminum plate is easily extruded and has good adhesion with the copper plate. At the same time, the heat of the aluminum plate is also conducted to the copper plate, so that the ductility of the copper plate is also increased. At the same time, in order to make the utilization rate of the copper plate higher, the aluminum plate will exceed the edge of the copper plate on both sides during the compounding and rolling process, so that the aluminum edges on both sides of the copper plate are formed. At the same time, since the copper plate is also subjected to pressure during rolling, edge deformation will occur, so that the edge of the copper-aluminum composite board needs to be sheared by an edge cutting device to achieve a relatively neat edge.

[0003] In the related art, an aluminum plate width trimming device in an aluminum cast rolling mill is disclosed, which comprises a cover, the cover is provided with an aluminum plate inlet and an aluminum plate outlet, the left end face of the cover is provided with a heat dissipation port, a cutting disc is arranged in the cover, the cutting disc is used for sawing the side edge of the aluminum plate and is perpendicular to the aluminum plate, the cutting disc is connected with a driving motor, and a reciprocating moving mechanism is fixedly arranged on one side of the cover, the reciprocating moving mechanism drives the cover to move horizontally, and the reciprocating moving mechanism on the outside of the cover can move the entire aluminum plate width trimming device, so as to meet different aluminum plate edge cutting width requirements.

[0004] However, in the above structure, the copper material cut on one side is more than that on the other side due to the deviation of the copper-aluminum composite board to one side during the processing process, and the other side still cannot achieve the effect of being flush. SUMMARY

[0005] In order to make the two sides of the copper-aluminum composite board cut more evenly and improve the utilization rate of copper, the application provides a composite board center positioning and edge cutting device.

[0006] The application provides a composite board center positioning and edge cutting device, which adopts the following technical scheme:

[0007] The application discloses a composite plate center positioning and edge cutting device.

[0008] By adopting the technical scheme, when the composite plate is used, since the composite plate is used for composite copper plate and aluminum plate, the lower surface of the composite plate is the surface on which the copper plate is arranged, the alignment mark is drawn on the lower surface of the composite plate in advance, the alignment mark is located at the center position of the copper plate, and thus the center detector can identify the center of the composite plate by detecting the position of the alignment mark; since the copper plates on the two sides of the position of the alignment mark are relatively uniform during the composite process of the copper plate and the aluminum plate, the edge cutting devices are arranged at equal distances on the two sides of the center detector, the edge cutting devices can cut the positions of irregular deformation formed on the two sides of the composite plate due to rolling, and since the composite plate center is used for positioning, the cutting of the composite plate on the two sides of the composite copper-aluminum plate is relatively uniform, and more copper plates can be reserved.

[0009] Preferably, a centering device is arranged downstream of the edge cutting devices along the conveying direction of the composite plate, the centering device is used for positioning the two side edges of the composite plate after edge cutting, the center of the centering device is located directly below the center of the composite plate after edge cutting, and the center detector is arranged at a position corresponding to the center line of the centering device.

[0010] By adopting the technical scheme, the centering device is arranged downstream of the edge cutting devices, the position of the centering device corresponds to the composite plate after edge cutting, the centering device is used for positioning the two side edges of the composite plate after edge cutting, the center of the centering device is located directly below the center of the composite plate after edge cutting, and the center detector is arranged at a position corresponding to the center line of the centering device, so that when the composite plate cut by the two edge cutting devices is inclined, the center detector is also deviated from the position of the alignment mark, and thus the center detector can timely find the cutting deviation.

[0011] Preferably, a center positioning device is arranged on the centering device, the center positioning device comprises an intermediate gear and two racks, the two racks are arranged in a spaced-apart manner and are engaged with the intermediate gear, the two racks are connected to the edge cutting devices on the two sides of the composite plate respectively, and the intermediate gear is rotatably arranged on the centering device and the center line of the intermediate gear is arranged along the center of the centering device.

[0012] By adopting the technical scheme, the center positioning device is arranged on the centering device, and the two racks of the center positioning device are connected to the edge cutting devices on the two sides, so that the centering device can control the positions of the edge cutting devices, and thus the positions of the edge cutting devices can be more stably controlled during the edge cutting of the composite plate; meanwhile, the engagement of the intermediate gear and the two racks can make the center detector accurately located at the positions of the edge cutting devices on the two sides of the composite plate.

[0013] Preferably, the trimming device is provided with a moving device for adjusting the position of the trimming device along the width direction of the composite board; the centering device is provided with a locking device for fixing the intermediate gear with the centering device.

[0014] By adopting the above technical scheme, when the locking device on the centering device fixes the intermediate gear with the centering device, the trimming devices on both sides of the composite board can be synchronously moved in the same direction by the moving device, and when the locking device is released, the intermediate gear rotates to move the trimming devices on both sides of the composite board by the same distance in opposite directions or in the same direction.

[0015] Preferably, the centering device comprises an intermediate frame, support arms and rollers, the rollers are used to abut on the trimmed side edges of the composite board, the rollers are provided in plurality and are respectively located on both sides of the intermediate frame, one end of the support arm is mounted on the intermediate frame, and the other end is used to rotatably connect the roller; the intermediate frame is provided with an adjusting device for adjusting the distance between the roller and the intermediate frame.

[0016] By adopting the above technical scheme, the rollers are provided in plurality and are respectively located on both sides of the intermediate frame, when the rollers on both sides of the intermediate frame abut on the trimmed side edges of the composite board, the position of the intermediate frame relative to the middle of the composite board can be positioned, so that the trimming device can be stably trimmed under the action of the centering device, and the adjusting device can adapt to the composite boards with different widths.

[0017] Preferably, the adjusting device comprises a sliding block, a connecting rod and a driving assembly for driving sliding movement, the sliding block is slidably connected to the intermediate frame along the center line of the intermediate frame, one end of the support arm away from the roller is rotatably connected to the intermediate frame, one end of the connecting rod is rotatably connected to the middle of the support arm, and the other end is rotatably connected to the sliding block, and two connecting rods are connected to the same sliding block and correspond to the support arms on both sides of the intermediate frame.

[0018] By adopting the above technical scheme, when the sliding block is driven relative to the intermediate frame by the driving assembly, the sliding block can simultaneously drive the connecting rods located on both sides of the intermediate frame, the connecting rods simultaneously rotate the support arms, so that the rollers on the support arms are adjusted by the same distance relative to the intermediate frame, thereby ensuring the central position of the intermediate frame.

[0019] Preferably, the driving assembly comprises a double-end screw and a driving motor, the driving motor is fixed to the intermediate frame, the double-end screw is rotatably connected to the intermediate frame, the output shaft of the driving motor is coaxially fixedly connected with the double-end screw, and the double-end screw is threadedly connected with the two sliding blocks.

[0020] By adopting the technical scheme, when the driving motor works, the driving motor can drive the double-head screw rod to rotate, the two sliding blocks on the double-head screw rod can move simultaneously and by the same distance under the action of the double-head screw rod, and then at least four rollers can move simultaneously by the same distance, so that the position of the rollers can be adjusted conveniently.

[0021] Preferably, the locking device comprises a friction plate, a clamping piece and a driving member, the friction plate is provided with two friction plates coaxially fixed on the intermediate gear, the other friction plate is fixed on the centering device, the driving member is fixed on the centering device, the clamping piece is provided with two clamping pieces, and the two friction plates are located between the two clamping pieces, and the driving member is used to drive the two clamping pieces to move close to each other.

[0022] By adopting the technical scheme, one friction plate is coaxially fixed on the intermediate gear, the other friction plate is fixed on the centering device, and the driving member moves the two clamping pieces close to each other, so that the two friction plates abut against each other, and then the intermediate gear and the centering device are locked, the rotation of the intermediate gear is prevented, and the same direction movement of the two edge cutting devices is ensured.

[0023] Preferably, the centering detector is a camera or a light sensor.

[0024] By adopting the technical scheme, the camera can identify the position of the mark line according to the photographed photo, and the light sensor can also judge whether the mark line is aligned by identifying the mark line, and both can automatically detect whether the position of the edge cutting deviates.

[0025] Preferably, the edge cutting device comprises a mounting frame, a motor and a cutting disc, the cutting disc is rotatably arranged on the mounting frame, the center line of the cutting disc is parallel to the width direction of the composite board, the motor is fixed on the mounting frame, and the output shaft of the motor is coaxially fixedly connected with the cutting disc.

[0026] By adopting the technical scheme, the cutting disc is rotatably arranged on the mounting frame, and when the cutting disc is driven by the motor, the cutting disc can cut the composite board along the length direction of the composite board.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By drawing the mark line on the lower surface of the composite board in advance, the centering detector can detect the position of the mark line to identify the center of the composite board, the copper plates on both sides of the position of the mark line are relatively uniform, so that the edge cutting devices are arranged at equal distances on both sides of the centering detector, and the composite board is positioned by the center of the composite board, so that the composite board composed of copper and aluminum is cut on both sides relatively uniformly.

[0029] 2. The centering detector is installed on the centering device, so that when the composite plate cut by the two edge cutting devices is skewed, the centering detector will also be misaligned with the position of the centering line, so that the cutting deviation can be discovered in time by the centering detector;

[0030] 3. When the rollers on both sides of the intermediate frame abut on the cut edges of the composite plate, the position of the intermediate frame relative to the middle of the composite plate can be positioned, so that the edge cutting device can stably cut under the action of the centering device. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic diagram of the embodiment of the application;

[0032] Figure 2 is the position schematic diagram of the centering device in the embodiment of the application;

[0033] Figure 3 is the connection structure schematic diagram of the center positioning device and the centering device in the embodiment of the application;

[0034] Figure 4 is the installation position schematic diagram of the adjusting device in the embodiment of the application.

[0035] BRIEF DESCRIPTION OF DRAWINGS: 1, rolling roller; 11, rack; 2, composite plate; 21, copper plate; 22, aluminum plate; 23, centering line; 3, edge cutting device; 31, mounting frame; 32, motor; 33, cutting disc; 4, centering detector; 5, moving device; 6, center positioning device; 61, intermediate gear; 62, rack; 63, baffle; 7, centering device; 71, intermediate frame; 72, support arm; 73, roller; 74, center rod; 8, locking device; 81, friction plate; 82, clamping piece; 83, driving piece; 84, sleeve; 9, adjusting device; 91, sliding block; 92, connecting rod; 93, driving assembly; 931, double-headed screw; 932, driving motor; 94, supporting wheel. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings Figures 1-4 The application will be further described in detail.

[0037] The embodiment of the application discloses a composite plate center positioning and edge cutting equipment, which refers to Figure 1, including two rolling rollers 1, the two rolling rollers 1 are arranged above and below and the two ends of the rolling rollers 1 are rotatably installed on the frame 11, and the two rolling rollers 1 are used for rolling the composite plate 2, the composite plate 2 is composed of a copper plate 21 and an aluminum plate 22, and the copper plate 21 is located below and the aluminum plate 22 is located above, in the process of rolling, the copper plate 21 can be in a strip shape formed after being unwound from a roll, one end of the copper plate 21 is placed between the two rolling rollers 1, then the aluminum plate 22 is placed on the upper surface of the copper plate 21, and the temperature of the aluminum plate 22 is controlled at 400-500 DEG C, so that the aluminum plate 22 is softened, facilitating the extrusion of the aluminum plate 22, and the aluminum plate 22 is in contact with the surface of the copper plate 21. When the aluminum plate 22 and the copper plate 21 pass through the position between the two rolling rollers 1 at the same time, part of the heat of the aluminum plate 22 is transferred to the copper plate 21, so that the copper plate 21 and the aluminum plate 22 are deformed in the process of rolling, the aluminum plate 22 is deformed more irregularly on the two sides of the copper plate 21 due to the high temperature and in order to make the copper plate 21 be fully used.

[0038] Reference Figure 2 Two edge cutting devices 3 are arranged downstream of the direction in which the two rolling rollers 1 convey the composite plate 2, the two edge cutting devices 3 are respectively located on the two sides of the composite plate 2 for cutting the two side edges of the composite plate 2, so that the two side edges of the copper plate 21 of the obtained composite plate 2 are in line with the edges of the aluminum plate. An alignment detector 4 is arranged below the composite plate 2, the alignment detector 4 can adopt a camera or a light sensor. In order to cooperate with the use of the alignment detector 4, a mark line 23 is drawn in advance on the center position of the lower surface of the copper plate 21. If the camera is adopted, the picture taken by the camera can be used for identification, so that the center of the camera is aligned with the mark line 23 or the misalignment distance between the camera and the mark line 23 is judged, and if the light sensor is adopted, the light sensor can be used for identifying whether the alignment detector 4 is aligned with the mark line 23. The mark line 23 is marked on the copper plate 21 after processing and before rolling, the mark line 23 can be black to distinguish from the color of the copper plate 21, and the mark line 23 is located at the center position of the copper plate 21, the position of the mark line 23 can be kept at the center of the copper plate 21 in the process of rolling, so that the middle position of the copper plate 21 can be accurately judged by the alignment detector 4, and then the two side edges of the copper plate 21 are cut by the edge cutting device 3 at equal intervals.

[0039] Reference Figure 1 and Figure 2The two edge cutting devices 3 are respectively connected with a moving device 5, which can be a pneumatic cylinder or a hydraulic cylinder. The edge cutting device 3 comprises a mounting frame 31, a motor 32 and a cutting disc 33. The cutting disc 33 is arranged on the mounting frame 31 and parallel to the length direction of the composite board 2. The motor 32 is fixed on the mounting frame 31 and the output shaft of the motor 32 is coaxially fixedly connected with the cutting disc 33, so that the motor 32 drives the cutting disc 33 to rotate and cut the side edge of the composite board 2. The moving device 5 is fixed on the frame 11 and the output end of the moving device 5 is fixed on the mounting frame 31. The working direction of the moving device 5 is perpendicular to the length direction of the composite board 2, so that the moving device 5 can be adjusted along the width direction of the composite board 2. When the composite board 2 with different widths needs to be cut, the two moving devices 5 move the two edge cutting devices 3 closer to or farther away from each other. When the middle positions of the two edge cutting devices 3 need to correspond to the middle positions of the composite board 2, the two moving devices 5 move the two edge cutting devices 3 in the same direction, so that the middle positions of the two edge cutting devices 3 correspond to the middle positions of the composite board 2. The centering detector 4 is arranged at the middle position between the two edge cutting devices 3. When in use, the two edge cutting devices 3 are aligned with the two side edges of the composite board 2 at the end position of the composite board 2 by the centering detector 4, or the centering detector 4 is aligned with the alignment line 23 on the copper plate 21 in an automatic control manner, and then the two edge cutting devices 3 are moved to the position with the same distance from the centering detector 4.

[0040] Reference Figure 3 The center positioning device 6 is arranged between the two edge cutting devices 3 and used for mounting the centering detector 4, so that the centering detector 4 is kept at the middle position between the two edge cutting devices 3 by the center positioning device 6. The centering device 7 is arranged downstream of the composite board 2 along the conveying direction and abuts against the two side edges of the composite board 2, so that the center of the centering device 7 is located at the position directly below the center of the composite board 2.

[0041] Reference Figure 3The centering device 7 comprises an intermediate frame 71, a support arm 72 and four rollers 73, two rollers 73 are arranged on each side of the composite board 2, the rollers 73 can be V-shaped wheels, the axis of the rollers 73 is vertically arranged, the support arm 72 is horizontally arranged, one end of the support arm 72 is installed on the intermediate frame 71, and the other end is used for installing the rollers 73. The two rollers 73 on the same side of the intermediate frame 71 are arranged at intervals along the length direction of the composite board 2. When the four rollers 73 abut on both sides of the composite board 2, the center of the intermediate frame 71 is aligned with the center of the composite board 2, that is, the center of the intermediate frame 71 is located directly below the alignment line 23. A center rod 74 is arranged on one end of the intermediate frame 71 close to the center positioning device 6, the center rod 74 is arranged along the center of the intermediate frame 71, so that the center rod 74 is also located directly below the alignment line 23 when the intermediate frame 71 is positioned at the center, and the centering detector 4 is fixed on the other end of the center rod 74 away from the intermediate frame 71, so that the centering detector 4 can be aligned with the position of the alignment line 23. When the composite board 2 is being cut, if the composite board 2 is skewed during rolling, since the middle position of the cut composite board 2 will be misaligned with the center of the intermediate frame 71, and then the center of the center rod 74 will be misaligned below the alignment line 23, and then the centering detector 4 detects that the alignment line 23 is misaligned, so that the incorrect cutting of the composite board 2 can be found in time through the centering detector 4, and the position of the edge cutting device 3 can be adjusted in time.

[0042] Reference Figure 3 The center positioning device 6 comprises an intermediate gear 61 and two racks 62, the intermediate gear 61 is rotatably installed on the center rod 74, the two racks 62 are arranged above and below, so that the intermediate gear 61 is located between the two racks 62 and meshes with the two racks 62, the intermediate gear 61 can be a helical gear, and the rack 62 has more meshing teeth when meshing with the intermediate gear 61, so as to reduce the meshing gap. The two racks 62 correspond to the mounting frames 31 of the two edge cutting devices 3 one by one, and one end of the rack 62 is fixed on the corresponding mounting frame 31. The locking device 8 is installed on the rack 62, and the locking device 8 is used to fixedly connect the intermediate gear 61 and the centering device 7, so that the intermediate gear 61 stops rotating. In use, when the two edge cutting devices 3 need to move to the same side, the centering detector 4 is aligned with the alignment line 23, the intermediate gear 61 stops rotating through the locking device 8, so that the two centering devices 7 can accurately move the same distance; when the distance between the two edge cutting devices 3 needs to be adjusted, the centering device 7 can be fixed first, and the locking device 8 is loosened at the same time, so that the center position of the intermediate gear 61 remains unchanged, the two edge cutting devices 3 move the same distance through the two racks 62, so as to ensure that the centering detector 4 is aligned with the position of the center of the two edge cutting devices 3. The intermediate gear 61 is provided with a baffle 63 at both ends, the baffle 63 is used to abut on the side of the rack 62, so that the intermediate gear 61 cannot slide relative to the rack 62 along the axis direction of the intermediate gear 61.

[0043] With reference to Figure 4 The locking device 8 comprises friction plates 81, clamping plates 82 and driving members 83, the driving members 83 can be air cylinders or hydraulic cylinders, the friction plates 81 are two, one of the friction plates 81 is fixed on the intermediate frame 71, and the other friction plate 81 is coaxially fixed with a sleeve 84, the sleeve 84 is coaxially fixed with the intermediate gear 61, the clamping plates 82 are two and oppositely spaced, the two friction plates 81 are located between the two clamping plates 82, the driving members 83 are fixed on the intermediate frame 71, and the output ends of the driving members 83 are fixedly connected with one of the clamping plates 82, and the other clamping plate 82 can be fixed on the intermediate frame 71, so that the driving members 83 can drive the two clamping plates 82 to approach each other and clamp the two friction plates 81, thereby achieving the locking effect of the intermediate gear 61 and the intermediate frame 71, and preventing the intermediate gear 61 from rotating.

[0044] With reference to Figure 4 The adjusting device 9 is installed on the intermediate frame 71 and is used to adjust the distance between the four rollers 73 and the center of the intermediate frame 71. The adjusting device 9 comprises sliding blocks 91, connecting rods 92 and a driving assembly 93 for driving the sliding blocks 91 to move. The sliding blocks 91 are slidably connected to the intermediate frame 71 along the center line direction of the intermediate frame 71. The ends of the support arms 72 away from the rollers 73 are rotatably connected to the intermediate frame 71. The connecting rods 92 are rotatably connected to the middle portions of the support arms 72 and the other ends of the connecting rods 92 are rotatably connected to the sliding blocks 91. Two connecting rods 92 are arranged on one sliding block 91. The two connecting rods 92 connected to the same sliding block 91 are located on the two sides of the intermediate frame 71. When the sliding blocks 91 move, the two connecting rods 92 can simultaneously rotate the two support arms 72, so that the two rollers 73 can simultaneously approach or move away from the center of the intermediate frame 71. The driving assembly 93 comprises a double-headed screw 931 and a driving motor 932. The driving motor 932 is fixed on the intermediate frame 71. The double-headed screw 931 is parallel to the sliding direction of the sliding blocks 91 and is rotatably installed on the intermediate frame 71. The output shaft of the driving motor 932 is coaxially fixedly connected with the double-headed screw 931. Two sliding blocks 91 are threadedly connected with the two ends of the double-headed screw 931 on the intermediate frame 71. The thread directions of the two ends of the double-headed screw 931 are opposite. When the double-headed screw 931 is driven to rotate by the driving motor 932, the four support arms 72 are simultaneously rotated under the action of the two sliding blocks 91, and the moving distances of the rollers 73 are equal. The support wheels 94 are fixedly installed on the ends of the support arms 72 close to the rollers 73, so that the centering device 7 can be horizontally placed on the rack 11 or the ground by the support wheels 94.

[0045] The working process of the embodiment is as follows: firstly, draw the alignment line 23 on the lower surface of the copper plate 21, then simultaneously put the copper plate 21 and the aluminum plate 22 between the rolling rollers 1 to perform rolling, so as to compound and extrude the copper plate 21 and the aluminum plate 22, when the end of the composite plate 2 flows out from between the rolling rollers 1, detect the position of the alignment line 23 through the centering detector 4, then synchronously move the two edge cutting devices 3 along the width direction of the composite plate 2, so that the centering detector 4 can be aligned with the alignment line 23, with the cutting of the composite plate 2, the two side edges of the cut composite plate 2 reach the position of the centering device 7, the four rollers 73 abut against the side edges of the composite plate 2, the center of the intermediate frame 71 is aligned with the center of the composite plate 2, at this time, the driving device for adjusting the position of the edge cutting device 3 is in a state of no driving force, the position of the two edge cutting devices 3 is controlled by the centering device 7, when the angle between the composite plate 2 and the two edge cutting devices 3 is inclined, the distance between the two side edges of the composite plate 2 formed by the edge carrying device and the alignment line 23 is not equal, so that the intermediate frame 71 of the centering device 7 deviates from the alignment line 23, and then the centering detector 4 installed on the center rod 74 is misaligned with the alignment line 23 and the inclination is detected, so that the staff can timely correct.

[0046] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A composite board center positioning and edge cutting apparatus, characterized by: The application relates to a cutting device for composite board (2), which comprises cutting devices (3) arranged on both sides of the composite board (2), a centering detector (4) arranged at the middle of the cutting devices (3) on both sides of the composite board (2), which is used for detecting the position of a centering line (23) on the lower surface of the composite board (2); A centering device (7) is arranged downstream of the cutting device (3) along the conveying direction of the composite board (2), which is used for positioning the two side edges of the composite board (2) after cutting, and the center of the centering device (7) is arranged directly below the center of the composite board (2) after cutting, and the centering detector (4) is arranged at the center line of the centering device (7); A center positioning device (6) is arranged on the centering device (7), which comprises a middle gear (61) and two racks (62), the two racks (62) are arranged in a spaced-apart manner and are engaged with the middle gear (61), the two racks (62) are respectively connected to the cutting devices (3) on both sides of the composite board (2), the middle gear (61) is rotatably arranged on the centering device (7), and the center line of the middle gear (61) is arranged along the center of the centering device (7); A moving device (5) is arranged on the cutting device (3), which is used for adjusting the position of the cutting device (3) along the width direction of the composite board (2); a locking device (8) is arranged on the centering device (7), which is used for fixing the middle gear (61) and the centering device (7); The centering device (7) comprises a middle frame (71), a supporting arm (72) and a roller (73), the roller (73) is used for abutting against the side edge of the composite board (2) after cutting, a plurality of rollers (73) are arranged on both sides of the middle frame (71), one end of the supporting arm (72) is arranged on the middle frame (71), and the other end is used for rotatably connecting the roller (73); an adjusting device (9) is arranged on the middle frame (71) and is used for adjusting the distance between the roller (73) and the middle frame (71); The locking device (8) comprises a friction plate (81), a clamping piece (82) and a driving member (83), two friction plates (81) are arranged in a spaced-apart manner, one friction plate (81) is coaxially fixed on the middle gear (61), the other friction plate (81) is fixed on the centering device (7), the driving member (83) is fixed on the centering device (7), two clamping pieces (82) are arranged, and the two friction plates (81) are arranged between the two clamping pieces (82), and the driving member (83) is used for driving the two clamping pieces (82) to move close to each other.

2. The apparatus according to claim 1, wherein: The adjusting device (9) comprises a sliding block (91), a connecting rod (92) and a driving assembly (93) for driving sliding movement, the sliding block (91) is slidingly connected to the middle frame (71) along the center line of the middle frame (71), one end of the supporting arm (72) away from the roller (73) is rotatably connected to the middle frame (71), one end of the connecting rod (92) is rotatably connected to the middle part of the supporting arm (72), the other end of the connecting rod (92) is rotatably connected to the sliding block (91), and two connecting rods (92) are connected to the same sliding block (91) and correspond to the supporting arms (72) on both sides of the middle frame (71) respectively.

3. The apparatus of claim 2, wherein: The driving assembly (93) comprises a double-head screw rod (931) and a driving motor (932), the driving motor (932) is fixed on the middle frame (71), the double-head screw rod (931) is rotatably connected to the middle frame (71), the output shaft of the driving motor (932) is coaxially fixedly connected with the double-head screw rod (931), and the double-head screw rod (931) is threadedly connected with the two sliding blocks (91).

4. The apparatus of claim 1 wherein: The centering detector (4) is a camera or a light sensor.

5. The apparatus of claim 1 wherein: The edge cutting device (3) comprises a mounting frame (31), a motor (32) and a cutting disc (33), the cutting disc (33) is rotatably arranged on the mounting frame (31), the center line of the cutting disc (33) is parallel to the width direction of the composite board (2), the motor (32) is fixed on the mounting frame (31), and the output shaft of the motor (32) is coaxially fixedly connected with the cutting disc (33).

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