CN212449362U

CN212449362U - Take plank concatenation conveyer of self-adaptation adjustment

Info

Publication number: CN212449362U
Application number: CN202020423956.3U
Authority: CN
Inventors: 贺亚辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-02-02
Anticipated expiration: 2030-03-26

Abstract

The utility model discloses a take plank concatenation conveyer of self-adaptation adjustment, a concatenation equipment field for the concatenation of veneer tooth form structure interface, during the conveying plank, the centre gripping plank on setting for the position of conveying seat, then, drive assembly drive conveying seat removes and loosens the plank to the conveying seat when loosening on setting for the position, between them, the conveying seat is when removing along the guide rail, the conveying seat can be according to the cooperation face self-adaptation adjustment position of guide rail and remove with the cooperation guide rail, the inertia force that the while can also self-adaptation slow down or the dispersion conveying seat has when starting and stopping. Above-mentioned technical scheme conveying plank stable performance, transfer efficiency is high, and the conveying is direct, and is rational in infrastructure, and the practicality is strong.

Description

Take plank concatenation conveyer of self-adaptation adjustment

Technical Field

The utility model is used for the concatenation equipment field of veneer profile of tooth structure interface concatenation particularly, relates to a take plank concatenation conveyer of self-adaptation adjustment.

Background

The plywood is widely applied to main materials in furniture manufacturing, decoration and decoration, and along with the development of the society, the requirements of people on the quality of substances are improved, so that the plywood manufacturing industry is promoted to develop to the social needs.

Veneers are thin wood materials of uniform thickness produced by rotary cutting or slicing or sawing of wood, typically between 1mm and 6mm thick and typically between 500mm and 1500mm in area, and are used mainly for the production of plywood and other plywood laminates. At present, the wood raw materials meeting the production requirements of the breadth of the finished plywood are few, and in order to meet the production requirements, the edges of two or more veneers are spliced in the same direction respectively according to the forward direction and the transverse direction of the growing fiber grains of the wood. The production process comprises the steps of cutting a toothed interface from the forward edges of the fiber grains grown on two or more single plates, gluing the toothed interface, and splicing the toothed interface, wherein the interface has the advantages of good stress performance and smooth interface. At present, a plurality of splicing technical schemes are published in recent years in China, such as Chinese patent CN207465420U, Chinese patent CN209868864U, Chinese patent CN110480768A and patents which are previously applied by the applicant about the aspect, the splicing of single plates can be completed only by moving and matching two or more groups of devices, and the adopted linear conveying device has the advantages of being convenient for the necessary operation vacancy of gluing in a conveying path and direct conveying. The meshing of a gear and a rack which are matched with each other in a transmission manner is fixed, the gear and the rack can not be automatically adjusted during meshing transmission, the linear transmission device has the characteristic of inertia force during starting and stopping, the gear and the rack are fixedly meshed, the interaction force of the gear and the rack in the meshing transmission can not be slowed down or dispersed, and the gear and the rack in the existing transmission are loosened and damaged.

Therefore, the wood board splicing and conveying device with the self-adaptive adjustment function is reasonable in structural design and reliable in performance, can effectively deal with guide rail deformation, and can slow down or disperse the inertia force of the device, so that the device is a new subject which needs to be developed urgently by scientific researchers in the technical field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a plank concatenation conveyer of self-adaptation adjustment in area of adaptable long distance removal and adaptation fast travel.

The utility model provides a technical scheme that its technical problem adopted is: a board splicing and conveying device with self-adaptive adjustment function comprises

A guide rail capable of guiding the conveying seat to move;

the driving assembly comprises a motor, a driving output gear and a rack and can drive the conveying seat;

the self-adaptive adjusting assembly is arranged on the transmission seat and can enable the output gear of the driving assembly to keep elastic meshing with the rack;

and the conveying seat can move along the guide of the meshing surface of the rack and the matching surface of the guide rail to convey the wood board.

Preferably, the frame of the conveying seat is internally provided with an upper clamping block, a lower clamping block and an oil cylinder, the oil cylinder is connected with the upper clamping block and the frame and can drive the upper clamping block and the lower clamping block to be close to or separated from each other, when the wood board enters a clamping set position, the conveying seat drives the upper clamping block to be close to the lower clamping block to clamp the wood board, then the conveying seat moves to the position along the meshing surface of the rack and the matching surface of the guide rail in a guiding mode, when the wood board is loosened from the set position, the upper clamping block and the lower clamping block are separated in an oil cylinder driving mode, the clamped wood board is loosened, in order to guarantee the positioning performance of the upper clamping block and the lower clamping block, sliding seats are arranged at two ends of the upper clamping block, and sliding strips capable of being matched with the sliding seats to slide are arranged on.

Preferably, the guide rail is two drum-type guide rails having a plurality of mating surfaces.

Preferably, the bottoms of the two ends of the conveying seat are provided with a plurality of rollers which can be respectively in rolling fit with the upper planes of the two I-shaped guide rails, and each roller comprises a bearing and a bearing outer sleeve which are connected with the conveying seat through a pin shaft; the inner sides of the lower parts of the two ends of the conveying seat are respectively provided with an L-shaped fixed seat, and the L-shaped fixed seats are provided with a plurality of rolling pins which can be respectively in rolling fit with the inner lower planes of the two I-shaped guide rails.

Preferably, the driving assembly comprises two racks, two driving output gears and two motors, the two racks are respectively arranged along the groove surfaces of the left side and the right side of the two guide rails, the two motors are respectively arranged on the self-adaptive adjusting assembly, and the shaft heads of the two motors are respectively provided with the driving output gears which can be respectively in synchronous meshing transmission with the two racks.

Preferably, respectively be equipped with a set of self-adaptation adjusting part on the both ends terminal surface of transfer seat, self-adaptation adjusting part includes adjustment seat and adjusting screw subassembly, be equipped with the motor on the adjustment seat, the stiff end of adjustment seat is through round pin hub connection on corresponding transfer seat terminal surface, the regulation end of adjustment seat with the adjusting screw subassembly is connected, the adjusting screw subassembly includes screw rod, spring, nut and gasket, the stiff end of screw rod is connected on corresponding transfer seat terminal surface, and the regulation end, gasket, spring, gasket and the nut of adjustment seat are connected to the regulation end of screw rod, can adjust the position of serving through adjusting nut at the screw rod, make the spring produce the elastic force that the strength size is suitable to the regulation end of adjustment seat, so that drive output gear has to rack toothing's elastic force.

Preferably, two ends of the transmission seat are respectively provided with a group of self-adaptive adjusting components with the same action, the self-adaptive adjusting components can enable the driving output gears of the corresponding driving components to keep stable elastic force and respectively engage with the corresponding racks, the two motors synchronously rotate to enable the driving output gears to synchronously engage with different positions on the corresponding racks, the transmission seat moves forwards or backwards in parallel, when the relative position between the meshing surfaces of the racks on the left and right outer side surfaces of the two guide rails is reduced, the springs extend the two driving output gears to be continuously engaged with the racks, when the relative position between the meshing surfaces of the racks on the left and right outer side surfaces of the two guide rails is increased, the springs are compressed to enable the two driving output gears to outwards displace and engage with the racks, the transmission seat has inertial acting force when being started or stopped so that the driving output gears and the racks have concentrated mutual acting force, the springs are compressed to deform to drive the output gears to outwards and forwards or backwards overturn, when the inertia force disappears, the spring returns to enable the driving output gear to return to the normal meshing position.

Preferably, a shrinkage groove is cut on the hole wall of the driving output gear, and the gap of an inner hole of the driving output gear is adjusted through a screw arranged on the hole wall so as to be matched with the outer diameter of the shaft head of the motor.

Compared with the prior art, the technical scheme has the advantages or beneficial effects that:

compared with the existing wood board splicing conveying device, the wood board splicing conveying device with the self-adaptive adjustment function has the advantages that firstly, the conveying distance is long without being influenced by the guide part when the conveying seat moves, the conveying is direct, and the relay conveying device is omitted, so that the wood board splicing equipment can obtain the long-distance conveying device with good performance, the wood board splicing equipment is adaptive to long-distance conveying of wood boards, the production efficiency is effectively improved, and the production cost is reduced. And secondly, the meshing of the gear and the rack of the conveying seat is elastic, and the interaction force of the gear and the rack can be slowed down or dispersed, so that the wood board splicing equipment obtains the conveying device with stable performance and rapid movement, and the wood board splicing equipment is suitable for rapidly splicing wood boards, the production efficiency is effectively improved, and the production cost is reduced.

Among this take plank concatenation conveyer of self-adaptation adjustment, servo drive motor controllability is strong, and the shift position is accurate to it is accurate to make two sets of or multiunit conveyer of plank concatenation equipment mutually support the shift position, can splice the plank of different length, and the plank interface of concatenation is of high quality. In addition, the servo driving motor has strong controllability and accurate moving position, thereby improving the application rate of mutually transferring the wood boards of the plywood production equipment and further automating the plywood production equipment.

Above-mentioned technical scheme is accurate in the plank position of two or a plurality of device cooperation conveying, stable performance, and rational in infrastructure, the practicality is strong, effectively improves production efficiency, reduction in production cost.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a front view of the structure of one embodiment of the present invention;

FIG. 2 is a side view of the embodiment of FIG. 1 with the same structure on both sides;

fig. 3 is a view of one of the gear structures shown in fig. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there are descriptions of directions (up, down, left, right, front, back) and positions (both ends, both sides, bottom, inside, outside), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, "a plurality" means one or more, "a plurality" means two or more, "more than", "less than", "more than", and the like, which means that the number is not included; the terms "above", "below", "within" and the like are to be understood as including the number.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1, an embodiment of the utility model provides a take plank concatenation conveyer of self-adaptation adjustment, include

A guide rail 2 which is composed of two guide rails 2 arranged in parallel on the frame 26, can guide the horizontal movement of the conveying seat 1, and can support the conveying seat 1;

the driving assembly 3 comprises a motor 13, two driving output gears 11 and two racks 14, wherein the motor 13 is arranged on the conveying seat 1 or the self-adaptive adjusting assembly 4 and can drive the two driving output gears 11 to rotate, the two driving output gears 11 are respectively arranged on the two self-adaptive adjusting assemblies 4, the tooth surfaces of the two racks 14 are arranged along the side surfaces of the two guide rails 2, and the conveying seat 1 is driven by the motor 13 to move according to the meshing transmission of the driving output gears 11 and the racks 14;

the self-adaptive adjusting components 4 are respectively arranged on the end surfaces of the two ends of the transmission seat 1, the two groups of self-adaptive adjusting components 4 are respectively provided with a driving output gear 11 of the driving component 3, the driving output gears 11 of the two groups of driving components 3 correspondingly lean against the meshing surfaces of racks 14 arranged on the left outer side surface and the right outer side surface of the two guide rails 2 under the elastic adjusting action of the corresponding self-adaptive adjusting components 4, when the relative position between the engaging surfaces of the racks 14 on the left and right outer side surfaces of the two guide rails 2 becomes small, the spring 17 of the adaptive adjustment assembly 4 extends the two drive output gears 11 to continue inwardly against the meshing rack 14, when the relative position between the engaging surfaces of the racks 14 on the left and right outer side surfaces of the two guide rails 2 becomes large, the spring 17 of the adaptive adjustment assembly 4 is compressed to drive the output gears 11 to displace the meshing rack 14 outwards;

when the wood board is released from the set position, the oil cylinder 5 drives the upper clamping block 7 to be separated from the lower clamping block 8, and the clamped wood board is released by the oil cylinder 5.

The spring 17 arranged on the adaptive adjusting assembly 4 can slow down or disperse the interaction force generated by the inertia on the gear 11 and the rack 14 when the transmission base 1 is started or stopped by deformation.

The multiple assemblies of the plank splicing conveying device with the self-adaptive adjustment can be arranged on one or more racks, when a plank is conveyed and enters a clamping set position from a vacancy between an upper clamping block 7 and a lower clamping block 8, an oil cylinder 5 drives the upper clamping block 7 and/or the lower clamping block 8 to approach to a clamping veneer, then two driving output gears 11 driven by a motor 13 are respectively under the adjustment of the self-adaptive adjustment assembly 4, the self-adaptive meshing rack 14 is used for transmission, the conveying seat 1 moves in parallel, when the plank is conveyed to a loosening set position, the oil cylinder 5 drives the upper clamping block 7 and/or the lower clamping block 8 to separate from each other to loosen the plank, and meanwhile, a plurality of components arranged on the bottoms and the inner sides of two ends of the conveying seat 1 respectively roll horizontally along the guiding directions of the upper plane and the inner side lower plane of two guide rails 2; the driving output gears 11 respectively arranged on the end surfaces of the two ends of the conveying seat 1 are guided to synchronously mesh and transmit along the meshing surfaces of the two racks 14 under the elastic adjustment of the corresponding self-adaptive adjusting assemblies 4, and when the conveying seat 1 starts conveying or stops conveying, the springs 17 of the self-adaptive adjusting assemblies 4 deform, so that the interaction force generated by the driving output gears 11 and the racks 14 due to inertia can be relieved or dispersed. Above-mentioned technical scheme is accurate in the plank position of two or a plurality of device cooperation conveying, and transfer performance is stable, and conveying efficiency is high, and is rational in infrastructure, and the practicality is strong.

In some embodiments, the conveying base 1 can be, but is not limited to, fixed by using a suction cup for conveying wood boards, preferably, referring to fig. 1, the conveying base 1 is provided with a frame 6 which comprises an upper clamping block 7, a lower clamping block 8 and an oil cylinder 5, the oil cylinder 5 connects the upper clamping block 7 with the frame 6 and can drive the upper clamping block 7 to move towards or away from the lower clamping block 8, when a wood board enters a clamping set position, the oil cylinder 5 arranged on the conveying base 1 drives the upper clamping block 7 to clamp the wood board close to the lower clamping block 8, then, the conveying base 1 moves to the matching surface of the guide rail 2 along the guide of the meshing surface of the rack 14, when the wood board is released from the clamping set position, the oil cylinder 5 drives the upper clamping block 7 to move away from the lower clamping block 8 to release the clamped wood board, in order to ensure that the upper clamping block 7 and the lower clamping block 8 have stable positioning performance, two ends of the upper clamping block 7 are respectively, the left and right end surfaces in the frame 6 are respectively provided with a slide bar 24 which can be matched with the slide seat 25 for sliding.

In some embodiments, the guide rail 2 can be, but is not limited to, a guide rail 2 with other shapes, and the guide rail 2 can be, but is not limited to, one or more guide rails 2, see fig. 1 and 2, wherein the guide rail 2 is fixed on the frame 26 in parallel by two section rails 2 with multiple faces;

wherein, the upper planes of the two I-shaped guide rails 2 can guide the conveying seat 1 to move horizontally along the upper planes, and the groove surfaces of the I-shaped guide rails 2 are convenient for arranging the racks 14.

In some embodiments, the matching position of the guide rail 2 and the transmission base 1 can be, but is not limited to be, matched in other directions, and in consideration of the small inner groove position of the guide rail 2, a roller 22 is used, but is not limited to be, a roller, preferably, referring to fig. 1, the bottom of the two ends of the transmission base 1 is provided with a plurality of rollers 10 capable of respectively matching with the upper planes of the two drum-type guide rails 2 in a rolling manner, the rollers 10 comprise bearings and bearing sleeves connected with the transmission base 1 through pin shafts 91, the inner sides below the two ends of the transmission base 1 are respectively provided with L-shaped fixing seats 23, and the L-shaped fixing seats are provided with a plurality of roller 22 capable of respectively matching with the inner. Wherein, the contact surfaces of the upper planes of the two I-shaped guide rails 2 and the rollers 10 arranged at the two ends of the conveying seat 1 are the upper and lower positions or horizontal matching surfaces of the conveying seat 1 and the guide rails 2, and in order to prevent the conveying seat 1 from inclining when moving, the inner sides of the two ends of the conveying seat 1 are provided with a plurality of roller pins 22 which can be in rolling fit with the inner lower planes of the two I-shaped guide rails 2, and can also be in elastic fit.

In some embodiments, the motor 13 of the driving assembly 3 may be, but is not limited to, one motor 13 disposed at other positions on the conveying base 1, the rack 14 of the driving assembly 3 may be, but is not limited to, disposed on the frame 26, the driving assembly 3 may be, but is not limited to, a transmission assembly that employs a motor 13 and a synchronous belt or a transmission assembly that employs a motor 13 and a chain, preferably, referring to fig. 1, the driving assembly includes two racks 14, two gears 11 and two motors 13, tooth surfaces of the two racks 14 are disposed along left and right outer groove surfaces of the two guide rails 2, two motors 13 are disposed on the adaptive adjustment assembly 4, and the driving output gears 11 disposed on output shaft heads of the two motors 13 are capable of meshing with the two racks 14 for transmission. Wherein, two motors 13 can adopt servo motor or step motor or ordinary motor or linear electric motor, can but not the restriction adopt a motor 13 drive synchronizing shaft to realize conveying seat 1 parallel translation, and motor 13 can pass through numerical control program control, and the advantage lies in: the method has the advantages of simple operation, good stability, high precision and strong controllability, and the transmission speed and distance can be changed only by changing the input of the program code, so that the efficiency and the quality of single-board transmission are improved, and transmission faults are reduced.

In some embodiments, the adaptive adjusting assembly 4 may be adjusted by, but is not limited to, using an air cylinder, preferably, referring to fig. 1 and fig. 2, a set of adaptive adjusting assemblies 4 is respectively disposed on end surfaces of two ends of the conveying base 1, the adaptive adjusting assembly 4 includes an adjusting base 19 and an adjusting screw assembly 20, the adjusting base 19 is provided with a motor 13, a fixed end of the adjusting base 19 is connected to an end surface of the corresponding conveying base 1 through a pin 92, an adjusting end of the adjusting base 19 is connected to the adjusting screw assembly 20, the adjusting screw assembly 20 includes a screw 15, a spring 17, a nut 16 and a washer 18, the fixed end of the screw 15 is connected to an end surface of the corresponding conveying base 1 through a pin 93, the adjusting end of the screw 15 is connected to an adjusting end of the adjusting base 19, the washer 18, the spring 17, the washer 18 and the nut 16, a position of the nut 16 on the adjusting end of the, the spring 17 generates an elastic force with a proper force on the adjusting end of the adjusting seat 19, so that the gear 11 is in meshing transmission against the rack 14.

In some embodiments, the matching of the transmission base 1 and the guide rail 2 can be, but is not limited to, a guide rail 2 and one end of the transmission base 1, for example, one end of the transmission base 1 can be matched with the guide rail 2 with a V-shaped surface or other fixable guide rails, the matching of the transmission base 1 and the guide rail 2 can be, but is not limited to, the guide rail 2 can be adjusted in position to match the transmission base 1, preferably, referring to fig. 1, two ends of the transmission base 1 are respectively provided with a set of adaptive adjusting components 4 with the same function, which can enable the driving output gear 11 of the corresponding driving component 3 to keep stable elastic force and respectively engage with the corresponding rack 14, two motors 13 rotate synchronously, which can enable the driving output gear 11 to synchronously engage with different positions on the corresponding rack 14, the transmission base 1 moves forwards or backwards in parallel, when the relative position between the engaging surfaces of the racks 14 on the left and right outer sides of the two guide rails 2, the spring 17 extends the two driving output gears 11 to continuously engage against the rack 14, when the relative position between the engaging surfaces of the rack 14 on the left and right outer side surfaces of the two guide rails 2 becomes larger, the spring 17 is compressed to compress the two driving output gears to outwardly displace and engage with the rack 14, the conveying seat 1 has inertia acting force when starting or stopping so that the driving output gears 11 and the rack 14 have concentrated interaction force, the spring 17 is compressed to deform the teeth to outwardly and forwardly or backwardly overturn, and when the inertia force disappears, the spring 17 returns to enable the driving output gears 11 to return to the normal engaging position.

In some embodiments, the outer diameter of the shaft head 12 of the motor 13 is matched with the inner hole and pin position of the driving output gear 11, which may be, but not limited to, a taper fit plus a nut or screw fastening, and preferably, referring to fig. 3, a shrink groove 142 is cut on the hole wall 141 of the gear 11, and the gap of the inner hole of the driving output gear 11 is adjusted by a screw 143 arranged on the hole wall 141 to tightly match the outer diameter of the shaft head 12 of the motor 13.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. Take plank concatenation conveyer of self-adaptation adjustment, its characterized in that: comprises that

A guide rail capable of guiding the conveying seat to move;

2. The adaptively adjusted plank splicing conveyor device of claim 1, wherein: the wood board conveying device is characterized in that the frame of the conveying seat comprises an upper clamping block, a lower clamping block and an oil cylinder, the oil cylinder is connected with the upper clamping block and the frame and can drive the upper clamping block and the lower clamping block to be close to or separated from each other, when a wood board enters a clamping set position, the conveying seat drives the upper clamping block and the lower clamping block to be close to and clamp the wood board, then the conveying seat moves to the position along the meshing surface of the rack and the matching surface of the guide rail in a guiding mode, when the wood board is loosened from the set position, the upper clamping block and the lower clamping block are driven by the oil cylinder to be separated, the clamped wood board is loosened, the positioning performance of the upper clamping block and the lower clamping block is guaranteed, sliding seats are arranged at two ends of the upper clamping block, and sliding strips capable of being matched with the.

3. The adaptively adjusted plank splicing conveyor device of claim 1, wherein: the guide rail is two I-shaped guide rails with a plurality of matching surfaces.

4. The adaptively adjusted plank splicing conveyor device of claim 1, wherein: the bottom parts of the two ends of the conveying seat are provided with a plurality of rollers which can be respectively matched with the upper planes of the two I-shaped guide rails in a rolling way, and each roller comprises a bearing and a bearing outer sleeve which are connected with the conveying seat through a pin shaft; the inner sides of the lower parts of the two ends of the conveying seat are respectively provided with an L-shaped fixed seat, and the L-shaped fixed seats are provided with a plurality of rolling pins which can be respectively in rolling fit with the inner lower planes of the two I-shaped guide rails.

5. The adaptively adjusted plank splicing conveyor device of claim 1, wherein: the driving assembly comprises two racks, two driving output gears and two motors, the two racks are arranged along the groove surfaces of the left side and the right side of the two guide rails respectively, the two motors are arranged on the self-adaptive adjusting assembly respectively, and the driving output gears are arranged on shaft heads of the two motors and can be meshed with the two racks for transmission respectively.

6. The adaptively adjusted plank splicing conveyor device of claim 1, wherein: respectively be equipped with a set of self-adaptation adjusting part on the both ends terminal surface of transfer seat, self-adaptation adjusting part includes adjustment seat and adjusting screw subassembly, be equipped with the motor on the adjustment seat, the stiff end of adjustment seat is through round pin hub connection on corresponding transfer seat terminal surface, the regulation end of adjustment seat with the adjusting screw subassembly is connected, the adjusting screw subassembly includes screw rod, spring, nut and gasket, the stiff end of screw rod is connected on corresponding transfer seat terminal surface, and the regulation end, gasket, spring, gasket and the nut of adjustment seat are connected to the regulation end of screw rod, can hold the position on the screw rod regulation through adjusting nut, make the spring produce the elastic force that strength size is suitable to the regulation end of adjustment seat, so that drive output gear have to rack toothing's elastic force.

7. The adaptively adjusted plank splicing conveyor device of claim 1, wherein: the two ends of the transmission seat are respectively provided with a group of self-adaptive adjusting components with the same action, the self-adaptive adjusting components can enable the driving output gears of the corresponding driving components to keep stable elastic force and respectively engage with the corresponding racks, the two motors synchronously rotate to enable the driving output gears to synchronously engage with different positions on the corresponding racks, the transmission seat moves forwards or backwards in parallel, when the relative position between the meshing surfaces of the racks on the left and right outer side surfaces of the two guide rails is reduced, the two driving output gears are extended by the spring to continue to be engaged with the racks, when the relative position between the meshing surfaces of the racks on the left and right outer side surfaces of the two guide rails is increased, the spring is compressed to enable the two driving output gears to move outwards to engage with the racks, the transmission seat has inertia acting force when being started or stopped, so that the driving output gears and the racks have concentrated mutual acting force, the spring is compressed to deform to drive the output gears to outwards and, when the inertia force disappears, the spring returns to enable the driving output gear to return to the normal meshing position.

8. The adaptively adjusted plank splicing conveyor device of claim 5, wherein: a shrinkage groove is cut on the hole wall of the driving output gear, and the gap of an inner hole of the driving output gear is adjusted through a screw arranged on the hole wall so as to be matched with the outer diameter of a shaft head of a motor.