CN219747320U - Plank polisher - Google Patents

Abstract

The utility model relates to the technical field of wood board processing, in particular to a wood board grinding machine. Including grinding machanism and setting feed mechanism and receiving mechanism in grinding machanism both sides, grinding machanism includes box, transmission band and polishing roller, the box is equipped with the cavity, just the box both ends be equipped with respectively with the box mouth of cavity intercommunication, the transmission band is equipped with two, two the transmission band is located two respectively box mouth department, and two the one end that the transmission band is located outside the cavity, two the opposite one end of transmission band constitutes the region of polishing, the polishing roller is equipped with two, two the polishing roller both ends respectively with the box rotates to be connected, just the polishing roller passes through the motor drive of polishing, and the plank can by the transmission band drive to two between the polishing roller. The material receiving mechanism and the material feeding mechanism have the same structure. The utility model can realize automatic polishing of the wood board, and can polish two sides of the wood board at the same time, thereby improving polishing efficiency.

Description

Plank polisher

Technical Field

The utility model relates to the technical field of wood board processing, in particular to a wood board grinding machine.

Background

Polishing refers to a method for enabling materials and objects which are uneven and uneven in thickness and do not meet technological requirements to be smoother and even in thickness through physical removal of abrasive cloth, grinding wheels, sand paper, scouring pad, non-woven fabric polishing wheels and the like, and enables the materials and objects to reach standards through technology, and is applied to various veneering technology production, standard structural member manufacturing, toy artwork industry, decoration and furniture industry, floor wallboard building material industry and the like. In wood board processing, it is often necessary to polish the surface thereof using a sander or sander to planarize the surface of the wood board for subsequent application of a uniform coating or painting and to promote the smoothness of the surface of the wood board.

However, the existing wood board polishing machine has some defects: when sanding a wood board, two persons are required to work together, one person pushes the wood board into a sander, and the other person pulls the wood board out of the sander; or a person walks back and forth at the two ends of the grinding machine to push and pull the wood board. Each time, the single-sided polishing is performed, after one side of the wood board is polished, a worker is required to turn over the wood board so as to polish the other side. Therefore, the existing polisher is adopted to polish the wood board, the labor intensity is high, when the staff tired or the spirit is not concentrated, the staff is easy to be injured by the wood board, and meanwhile, the polishing efficiency is reduced due to the fact that the wood board needs to be repeatedly moved.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the background art, can realize automatic polishing of the wood board, and can polish two sides of the wood board at the same time, thereby improving polishing efficiency.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a plank polisher, which comprises a polishing mechanism, a feeding mechanism and a receiving mechanism which are arranged on two sides of the polishing mechanism,

the polishing mechanism comprises a box body, two transmission belts and polishing rollers, wherein the box body is provided with a cavity, two ends of the box body are respectively provided with box openings communicated with the cavity, the two transmission belts are respectively arranged at the two box openings, one ends of the two transmission belts, which are opposite, are positioned outside the cavity, one ends of the two transmission belts, which are opposite, form a polishing area, the two polishing rollers are provided with two, the two ends of the polishing rollers are respectively connected with the box body in a rotating way, the polishing rollers are driven by a polishing motor, and a wood board can be driven by the transmission belts to the positions between the two polishing rollers so that the polishing rollers can polish two sides of the wood board;

the feeding mechanism is positioned at the rear side of the advancing direction of the conveying belt and comprises a lifting frame and a material taking frame, wherein the lifting frame is a scissor lifting table, and the uppermost wood board is slightly higher than the conveying belt through lifting;

the material taking frame comprises a rail, a frame body and clamping plates, wherein the rail is positioned at two sides of the lifting frame, two ends of the frame body are erected on the rail through travelling wheels, and the travelling wheels are driven by a travelling motor so that the frame body can move on the rail; the frame body is towards one side of crane slides and is equipped with two grip blocks, the grip block passes through the centre gripping drive part drive, so that two the grip block is close to each other and can the centre gripping the plank on crane top.

The material receiving mechanism is positioned at the front side of the advancing direction of the conveying belt, and the structure of the material receiving mechanism is the same as that of the feeding mechanism.

Further, evenly lay a plurality of swager rolls in the cavity, just the swager roll is located the both sides of roller of polishing, the swager roll both ends rotate there is electric telescopic handle, electric telescopic handle one end with the swager roll rotates to be connected, the other end with box fixed connection, electric telescopic handle extends the back, the swager roll can with plank butt on the conveyer belt.

Further, guide plates are arranged on two sides of the polishing roller in the cavity, two guide plates are arranged on each side of the cavity, one face of each guide plate is fixedly connected with the box through an elastic telescopic rod, a plurality of guide wheels are uniformly distributed on the other face of each guide plate, and the guide wheels are rotationally connected with the guide plates.

Further, a guide plate close to one side of the feeding mechanism is provided with a guide part, one end of the guide part is fixedly connected with the guide plate, the other end of the guide part faces the feeding mechanism, and the guide part is obliquely arranged so that two guide parts face one end of the feeding mechanism to form an open structure.

Further, the lifting frame is driven to lift through a hydraulic telescopic rod; an infrared sensor is arranged on one side of the frame body and is electrically connected with the hydraulic telescopic rod through a controller, so that the wood board on the uppermost layer is slightly higher than the conveying belt.

Further, a first limit switch and a second limit switch are arranged on one side rail at two ends of the box body, the first limit switch and the second limit switch are fixedly arranged on two sides in the rail, and the first limit switch and the second limit switch are electrically connected with the controller.

Further, the frame body is provided with a cavity, and one surface of the frame body facing the lifting frame is provided with a first chute communicated with the cavity;

the clamping driving part is arranged in the cavity and comprises a driving rod and a clamping motor, the two ends of the driving rod are respectively connected with the frame body in a rotating mode, the directions of threads at the two ends of the driving rod are opposite, first connecting pieces are sleeved at the two ends of the driving rod, one ends of the first connecting pieces are connected with the driving rod in a threaded mode, the other ends of the first connecting pieces penetrate out of the cavity through first sliding grooves and are fixedly connected with the clamping plates, and the clamping motor is connected with the driving rod in a transmission mode so that the two clamping plates can move along opposite directions.

Further, two opposite sides of the clamping plates are provided with clamping insections.

The beneficial effects of the utility model are as follows:

1. through stacking the plank on feed mechanism's the crane for the plank at the upper strata in feed mechanism's two grip blocks can the centre gripping crane, and the support body can remove to the top of conveyer belt under the drive of walking motor, in order to make release behind the grip block, the plank can be carried to the cavity by the conveyer belt, thereby has realized the automatic feeding of plank. When the plank moves to the area of polishing, two polishing rollers polish the two sides of the plank simultaneously, and along with the progress of the conveying belt, the plank finishes polishing and is conveyed outside the cavity, so that the double-sided automatic polishing of the plank is realized. Two grip blocks of receiving mechanism can the plank on the centre gripping conveyer belt, make the plank by the crane of receiving mechanism on by the walking motor of receiving mechanism, thereby realize the automatic material that connects after the plank is polished. According to the utility model, the wood board can be automatically polished, and the two sides of the wood board can be polished at the same time, so that the polishing efficiency is improved, a worker does not need to manually push and pull the wood board during polishing, and the wood board is not required to be carried and turned, thereby reducing the labor intensity and effectively improving the polishing efficiency of the wood board.

2. The bin mouth and the regional both sides of polishing all are equipped with the swager roller, under the effect of electric telescopic handle, swager roller and the plank butt on the conveyer belt for the plank can be fixed on the conveyer belt, and plank perk improves the stability that the plank was polished when avoiding the plank to polish, ensures the effect that the plank was polished.

3. Under the transmission effect of conveyer belt, the plank is through two guiding portions, because two guiding portions are open structure for the plank can enter into between two guide boards, under the elasticity effect of elastic telescopic link, the plank is by guide board centre gripping, avoids the condition that the process that the plank polished appears the slope, ensures the effect that the plank polished, simultaneously under the effect of guide wheel, can not influence the removal of plank.

Drawings

Fig. 1 is a schematic view of a wood board grinder according to a preferred embodiment of the present utility model.

Fig. 2 is a schematic view showing a grinding roller structure of a wood board grinding machine according to a preferred embodiment of the present utility model.

Fig. 3 is a schematic view showing a guide plate structure of a wood board grinder according to a preferred embodiment of the present utility model.

Fig. 4 is a schematic view showing a lifter structure of a wood board grinder according to a preferred embodiment of the present utility model.

Fig. 5 is a schematic view showing a frame structure of a wood board grinder according to a preferred embodiment of the present utility model.

Fig. 6 is a schematic view showing a structure of a clamping driving part of a wood board grinder according to a preferred embodiment of the present utility model.

In the figure, 1-polishing mechanism, 101-feeding mechanism, 102-receiving mechanism, 103-polishing area, 11-box, 111-cavity, 112-box mouth, 12-transmission belt, 13-polishing roller, 14-polishing motor, 15-pressing roller, 151-electric telescopic rod, 16-guiding plate, 161-elastic telescopic rod, 162-guiding wheel, 17-guiding part, 2-lifting frame, 201-erection plate, 202-scissor bracket, 21-hydraulic telescopic rod, 3-material taking frame, 31-track, 32-frame, 321-cavity, 322-first chute, 323-second chute, 324-second connector, 33-clamping plate, 331-clamping tooth, 34-walking wheel, 341-walking motor, 4-infrared sensor, 411-first limit switch, 412-second limit switch, 421-first photoelectric sensor, 422-second photoelectric sensor, 5-driving rod, 501-first connector, 51-clamping motor, 511-first conical gear and 512-second conical gear.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, a wood board polishing machine according to a preferred embodiment of the present utility model includes a polishing mechanism 1, and a feeding mechanism 101 and a receiving mechanism 102 disposed on two sides of the polishing mechanism 1.

As shown in fig. 1 and 2, the polishing mechanism 1 includes a box 11, a transmission belt 12 and polishing rollers 13, the box 11 is provided with a cavity 111, two ends of the box 11 are respectively provided with a box opening 112 communicated with the cavity 111, the transmission belt 12 is provided with two, the two transmission belts 12 are respectively located at the two box openings 112, one ends of the two transmission belts 12 opposite to each other are located outside the cavity 111, one ends of the two transmission belts 12 opposite to each other form a polishing area 103, the polishing rollers 13 are provided with two, two ends of the two polishing rollers 13 are respectively connected with the box 11 in a rotating manner, the polishing rollers 13 are driven by a polishing motor 14, and a wood board can be driven between the two polishing rollers 13 by the transmission belts 12, so that the polishing rollers 13 can polish two sides of the wood board. The polishing mechanism 1 of the present embodiment can be supported on the ground by a holder.

The polishing motor 14 of this embodiment is fixedly disposed outside the box 11, a driving shaft of the polishing motor 14 is fixedly provided with a first driving fluted disc, one ends of the two polishing rollers 13 penetrate out of the cavity 111 and are fixedly provided with a second driving fluted disc, and the first driving fluted disc is respectively in transmission connection with the two second driving fluted discs through a first chain so as to realize driving of the polishing rollers 13. The polishing roller 13 of the present embodiment is provided with a polishing brush outside its surface for polishing a wood board.

As shown in fig. 1 and 4, the feeding mechanism 101 is located at the rear side of the advancing direction of the conveyor belt 12, and the feeding mechanism includes a lifting frame 2 and a material taking frame 3, where the lifting frame 2 is a scissor lifting table, and the uppermost wood board is slightly higher than the conveyor belt 12 by lifting. In this embodiment, the scissor lifting platform includes two erection plates 201 and a scissor bracket 202, the two erection plates 201 are oppositely arranged, the scissor bracket 202 is provided with two, and the scissor bracket 202 is located at two sides between the two erection plates 201, the scissor bracket 202 includes two mutually hinged rod bodies, two ends of one rod body are respectively connected with the two erection plates 201 in a rotating manner, and two ends of the other rod body are respectively connected with the two erection plates 201 in a sliding manner. The lifting frame 2 is driven to lift through the hydraulic telescopic rod 21, a cross rod is arranged between the two erection plates 201, the cross rod is fixedly connected with one end of the rod body, which is close to the sliding end, the hydraulic telescopic rod 21 is connected with the cross rod in a transmission manner, and the rod body is pushed to move so as to adjust the angle of the scissor type support 202, so that lifting of the lifting frame 2 is realized.

As shown in fig. 1 and 5, the material taking frame 3 comprises a rail 31, a frame 32 and a clamping plate 33, wherein the rail 31 is positioned at two sides of the lifting frame 2, two ends of the frame 32 are erected on the rail 31 through travelling wheels 34, and the travelling wheels 34 are driven by a travelling motor 341 so that the frame 32 can move on the rail 31; the frame body 32 is provided with two clamping plates 33 in a sliding manner toward one side of the lifting frame 2, and the clamping plates 33 are driven by a clamping driving part so that the two clamping plates 33 are close to each other and can clamp the uppermost wood board of the lifting frame 2. The level of the clamping plate 33 in this embodiment is slightly higher than that of the conveying belt 12, so that when the clamping plate 33 of the feeding mechanism 101 is released, the impact of the wood board on the conveying belt 12 is reduced, and the clamping plate 33 of the receiving mechanism 102 can clamp the wood board.

The axle of a travelling wheel 34 is fixedly provided with a first driving disc, a travelling motor 341 is fixedly arranged on the side surface of the frame 32, a driving shaft of the travelling motor 341 is provided with a second driving disc, and the second driving disc is in transmission connection with the first driving disc through a second chain so as to realize driving of the travelling wheel 34.

In this embodiment, an infrared sensor 4 is disposed on one side of the frame 32, and the infrared sensor 4 is electrically connected to the hydraulic telescopic rod 21 through a controller, so that the uppermost wood board is slightly higher than the conveyor belt 12. The distance between the frame 32 and the wood board on the uppermost layer of the lifting frame 2 can be obtained through the infrared sensor 4, and the controller adjusts the hydraulic telescopic rod 21 according to the data of the infrared sensor 4 so as to control the height of the lifting frame 2, so that the wood board on the uppermost layer of the lifting frame 2 is at a constant height after the material taking frame 3 moves out of the wood board every time, and the clamping plate 33 is ensured to clamp the wood board on the uppermost layer of the lifting frame 2.

As shown in fig. 1, the first limit switch 411 and the second limit switch 412 are disposed on the track 31 at one side of two ends of the box 11, the first limit switch 411 and the second limit switch 412 are fixedly disposed at two sides in the track 31, and the first limit switch 411 and the second limit switch 412 are electrically connected to the controller. The traveling wheel 34 of the present embodiment can trigger the first limit switch 411 and the second limit switch 412.

As shown in fig. 5 and 6, the frame 32 is provided with a cavity 321, and a first chute 322 communicating with the cavity 321 is provided on a surface of the frame 32 facing the lifting frame 2. The clamping driving part is arranged in the cavity 321, the clamping driving part comprises a driving rod 5 and a clamping motor 51, two ends of the driving rod 5 are respectively connected with the frame 32 in a rotating mode, the screw threads at two ends of the driving rod 5 are opposite in direction, a first connecting piece 501 is sleeved at two ends of the driving rod 5, one end of the first connecting piece 501 is connected with the driving rod 5 in a screw mode, the other end of the first connecting piece 501 penetrates out of the cavity 321 through a first sliding groove 322 and is fixedly connected with the clamping plate 33, and the clamping motor 51 is connected with the driving rod 5 in a transmission mode so that the two clamping plates 33 can move in opposite directions.

The two sides of the first chute 322 in this embodiment are further provided with a second chute 323, the second chute 323 is provided with a second connecting member 324, one end of the second connecting member 324 is slidably connected with the second chute 323, the other end is fixedly connected with the clamping plate 33, and the sliding stability of the clamping plate 33 is increased by the second connecting member 324. The middle part of the driving rod 5 is fixedly sleeved with a first conical gear 511, the clamping motor 51 is fixedly arranged in the cavity 321, a driving shaft of the clamping motor 51 is fixedly provided with a second conical gear 512, and the second conical gear 512 is meshed with the first conical gear 511 so as to realize driving rotation of the driving rod 5.

The first limit switch 411 of the present embodiment is located on a side of the track 31 away from the case 11, and the second limit switch 412 is located on a side of the track 31 near the case 11.

The grip motor 51 and the travel motor 341 are electrically connected to the controller, respectively. The two ends of the box body 11, which are close to the box opening 112, are respectively provided with a first photoelectric sensor 421 and a second photoelectric sensor 422, the first photoelectric sensor 421 is close to the feeding mechanism 101, the second photoelectric sensor 422 is close to the receiving mechanism 102, and the first photoelectric sensor 421 and the second photoelectric sensor 422 are respectively electrically connected with the controller.

In the feeding mechanism 101, the holding plate 33 holds the wooden board on the lifting frame 2, and the frame 32 moves toward the box 11, when the travelling wheel 34 presses down the second limit switch 412, the controller controls the travelling motor 341 to stop, and simultaneously controls the holding motor 51 to reverse, so that the holding plate 33 releases the wooden board onto the conveyor belt 12, and when the first photoelectric sensor 421 obtains a signal, the controller controls the infrared sensor 4 to perform distance measurement so that the wooden board leaves the lifting frame 2 to perform height adjustment of the lifting frame 2.

After time delay, to wait that the plank leaves grip block 33, the controller controls the walking motor 341 to reverse, and the frame 32 moves towards the direction away from the box 11, when the walking wheel 34 presses down the first limit switch 411, the controller controls the walking motor 341 to stop, and simultaneously controls the grip motor 51 to forward rotate, so as to grip the plank on the uppermost layer of the lifting frame 2, thereby polishing the plank again.

In the receiving mechanism 102, the grip plate 33 conveys the grip wood board on the belt 12, and the frame 32 is moved in a direction away from the box 11, and when the traveling wheel 34 presses down the first limit switch 411, the controller controls the traveling motor 341 to stop while controlling the grip motor 51 to reverse, so that the grip plate 33 releases the wood board onto the lifter 2.

After time delay, when the wood board leaves the clamping plate 33, the controller controls the traveling motor 341 to rotate forward, the frame 32 moves towards the direction of the box 11, when the traveling wheel 34 presses down the second limit switch 412, the controller controls the traveling motor 341 to stop, when the second photoelectric sensor 422 is triggered twice, the wood board is proved to leave the cavity 111, the controller controls the clamping motor 51 to rotate forward according to the signal of the second photoelectric sensor 422, so that the clamping plate 33 clamps the wood board of the conveying belt 12, and the wood board is taken out again.

Preferably, the opposite sides of the two clamping plates 33 are provided with clamping insections 331. Under the action of the clamping insection 331, the clamping plate 33 can stably clamp and fix the wood board.

In this embodiment, by stacking the boards on the lifting frame 2 of the feeding mechanism, the two clamping plates 33 of the feeding mechanism can clamp the uppermost board in the lifting frame 2, and the frame 32 can move to the upper side of the conveying belt 12 under the driving of the travelling motor 341, so that after the clamping plates 33 are released, the boards can be conveyed into the cavity 111 by the conveying belt 12, and thus, the automatic feeding of the boards is realized. When the wood board moves to the polishing area 103, the two polishing rollers 13 polish and polish the two sides of the wood board simultaneously, and the wood board is polished and conveyed out of the cavity 111 after the transmission belt 12 advances, so that the double-sided automatic polishing of the wood board is realized. The two clamping plates 33 of the material receiving mechanism can clamp the wood board on the conveying belt 12, and the wood board is moved to the lifting frame 2 of the material receiving mechanism through the traveling motor 341 of the material receiving mechanism, so that automatic material receiving after wood board polishing is realized.

According to the embodiment, the wood board can be automatically polished, the two sides of the wood board can be polished simultaneously, the polishing efficiency is improved, a worker does not need to manually push and pull the wood board during polishing, and the wood board does not need to be carried and turned, so that the labor intensity is reduced, and the polishing efficiency of the wood board is effectively improved.

As shown in fig. 1 and 2, a plurality of material pressing rollers 15 are uniformly distributed in the cavity 111, the material pressing rollers 15 are located on two sides of the grinding roller 13, electric telescopic rods 151 are rotated at two ends of the material pressing rollers 15, one ends of the electric telescopic rods 151 are rotationally connected with the material pressing rollers 15, the other ends of the electric telescopic rods 151 are fixedly connected with the box 11, and after the electric telescopic rods 151 stretch, the material pressing rollers 15 can be abutted to a wood board on the conveying belt 12.

The bin mouth 112 and the two sides of the polishing area 103 are respectively provided with a pressing roller 15, and under the action of the electric telescopic rod 151, the pressing rollers 15 are abutted with the wood board on the conveying belt 12, so that the wood board can be fixed on the conveying belt 12, the wood board is prevented from tilting when the wood board is polished, the polishing stability of the wood board is improved, and the polishing effect of the wood board is ensured.

The electric telescopic rod 151 and the transmission belt 12 of the present embodiment are electrically connected with a controller, and the controller can control the telescopic amount of the electric telescopic rod 151 to adapt to boards with different thicknesses. The controller sets the first, second, and third press delays according to the speed of the conveyor belt 12. When the first photoelectric sensor 421 obtains a signal, the controller starts timing, and after the first pressing delay, the controller proves that the wood board is close to the polishing area 103, and the controller controls the electric telescopic rod 151 close to the feeding mechanism 101 to extend so as to press the wood board on the conveyor belt 12.

After the second material pressing delay, the wood board is proved to move to the material pressing roller 15 on one side of the polishing area 103 close to the material receiving mechanism 102, and the controller controls the electric telescopic rod 151 corresponding to the material pressing roller 15 to extend.

After the third pressing delay, the wood board is proved to move to the pressing roller 15 close to one side of the receiving mechanism 102, and the controller controls the electric telescopic rod 151 corresponding to the pressing roller 15 to extend.

When the second photosensor 422 obtains the signal twice, it proves that the wood board leaves the cavity 111, and the controller controls the electric telescopic rod 151 to reset so as to prepare for the next polishing of the wood board.

As shown in fig. 1 and 3, guide plates 16 are respectively arranged on two sides of the grinding roller 13 in the cavity 111, two guide plates 16 are respectively arranged on each side of the cavity 111, one surface of each guide plate 16 is fixedly connected with the box 11 through an elastic telescopic rod 161, a plurality of guide wheels 162 are uniformly distributed on the other surface, and the guide wheels 162 are rotationally connected with the guide plates 16.

The guide plate 16 near one side of the feeding mechanism is provided with a guide part 17, one end of the guide part 17 is fixedly connected with the guide plate 16, the other end of the guide part faces the feeding mechanism, and the guide part 17 is obliquely arranged so that one ends of the two guide parts 17, facing the feeding mechanism 101, form an open structure. The guide portion 17 of the present embodiment is also provided with guide wheels 162 rotatably on the opposite side.

Under the transmission effect of the transmission belt 12, the plank passes through two guide parts 17, and because two guide parts 17 are open structures for the plank can enter into between two guide boards 16, under the elasticity effect of elastic telescopic link 161, the plank is by guide board 16 centre gripping, avoids the condition that the process of plank was polished to appear the slope, ensures the effect that the plank was polished, simultaneously under the effect of guide wheel 162, can not influence the removal of plank.

The operation process of the wood board grinding machine in the embodiment is as follows:

s1, in the feeding mechanism 101, the clamping plate 33 clamps the wood board on the lifting frame 2, the frame 32 moves towards the box 11, when the travelling wheel 34 presses down the second limit switch 412, the controller controls the travelling motor 341 to stop, meanwhile controls the clamping motor 51 to rotate reversely, so that the clamping plate 33 releases the wood board onto the conveying belt 12, when the first photoelectric sensor 421 obtains a signal, the controller controls the infrared sensor 4 to conduct distance measurement, and the controller adjusts the height of the lifting frame 2, so that the wood board at the uppermost layer of the lifting frame 2 is slightly higher than the conveying belt 12.

S2, after time delay, the controller controls the traveling motor 341 to rotate reversely, the frame 32 moves towards the direction away from the box 11, when the traveling wheel 34 presses down the first limit switch 411, the controller controls the traveling motor 341 to stop, and simultaneously controls the clamping motor 51 to rotate forwardly so as to clamp the uppermost wood board of the lifting frame 2, and therefore the wood board is polished again.

S3, the wood board moves on the conveying belt 12, when the first photoelectric sensor 421 obtains a signal, the controller starts timing, after the first material pressing delay, the controller controls the electric telescopic rod 151 close to the feeding mechanism 101 to stretch so as to press the wood board on the conveying belt 12, the wood board passes through the polishing area 103, and the two polishing rollers 13 of the polishing rollers 13 polish the two sides of the wood board.

S4, after the second material pressing delay, the controller controls the electric telescopic rod 151 on one side of the polishing area 103, which is close to the material receiving mechanism 102, to extend; after the third material pressing delay, the controller controls the electric telescopic rod 151 close to one side of the material receiving mechanism 102 to extend; after the board leaves the cavity 111, the second photoelectric sensor 422 obtains signals twice, and the controller controls the electric telescopic rod 151 to reset so as to prepare for the next polishing of the board.

S5, in the receiving mechanism 102, the clamping plate 33 is used for clamping the wood board on the conveyor belt 12, the frame 32 moves towards the direction away from the box 11, when the travelling wheel 34 presses down the first limit switch 411, the controller controls the travelling motor 341 to stop, and simultaneously controls the clamping motor 51 to rotate reversely, so that the clamping plate 33 releases the wood board onto the lifting frame 2.

And S6, after time delay, the controller controls the traveling motor 341 to rotate positively, the frame 32 moves towards the box 11, when the traveling wheel 34 presses down the second limit switch 412, the controller controls the traveling motor 341 to stop, when the second photoelectric sensor 422 is triggered twice, the wood board is proved to leave the cavity 111, and the controller controls the clamping motor 51 to rotate positively according to the signal of the second photoelectric sensor 422, so that the clamping plate 33 clamps the wood board of the conveyor belt 12, and the wood board is taken out again.

Claims (8)

1. The plank polisher is characterized by comprising a polishing mechanism (1), a feeding mechanism (101) and a receiving mechanism (102) which are arranged on two sides of the polishing mechanism (1),

the polishing mechanism (1) comprises a box body (11), two conveying belts (12) and polishing rollers (13), wherein the box body (11) is provided with a cavity (111), two ends of the box body (11) are respectively provided with box openings (112) communicated with the cavity (111), the conveying belts (12) are respectively arranged at the two box openings (112), one ends of the two conveying belts (12) opposite to each other are positioned outside the cavity (111), the opposite ends of the two conveying belts (12) form polishing areas (103), the two polishing rollers (13) are respectively connected with the box body (11) in a rotating mode, the polishing rollers (13) are driven by polishing motors (14), and a wood board can be driven by the conveying belts (12) to be between the two polishing rollers (13), so that the polishing rollers (13) can polish two sides of the wood board;

the feeding mechanism (101) is positioned at the rear side of the advancing direction of the conveying belt (12), the feeding mechanism comprises a lifting frame (2) and a material taking frame (3), the lifting frame (2) is a scissor type lifting table, and the uppermost wood board is slightly higher than the conveying belt (12) through lifting;

the material taking frame (3) comprises a rail (31), a frame body (32) and clamping plates (33), wherein the rail (31) is positioned at two sides of the lifting frame (2), two ends of the frame body (32) are erected on the rail (31) through travelling wheels (34), and the travelling wheels (34) are driven by a travelling motor (341) so that the frame body (32) can move on the rail (31); two clamping plates (33) are slidably arranged on one surface of the frame body (32) facing the lifting frame (2), and the clamping plates (33) are driven by a clamping driving component so that the two clamping plates (33) are close to each other and can clamp the wood board on the uppermost layer of the lifting frame (2);

the receiving mechanism (102) is positioned at the front side of the advancing direction of the conveying belt (12), and the receiving mechanism and the feeding mechanism have the same structure.

2. A board grinding machine as defined in claim 1, wherein: a plurality of material pressing rollers (15) are uniformly arranged in the cavity (111), the material pressing rollers (15) are located on two sides of the polishing roller (13), electric telescopic rods (151) are rotated at two ends of each material pressing roller (15), one end of each electric telescopic rod (151) is rotationally connected with each material pressing roller (15), the other end of each electric telescopic rod is fixedly connected with the box body (11), and after the electric telescopic rods (151) are stretched, the material pressing rollers (15) can be abutted to wood boards on the conveying belt (12).

3. A board grinding machine as defined in claim 1, wherein: guide plates (16) are arranged on two sides of the polishing roller (13) in the cavity (111), two guide plates (16) are arranged on each side of the cavity (111), one face of each guide plate (16) is fixedly connected with the box (11) through an elastic telescopic rod (161), a plurality of guide wheels (162) are uniformly distributed on the other face of each guide plate, and the guide wheels (162) are rotationally connected with the guide plates (16).

4. A board grinding machine as defined in claim 3, wherein: guide plate (16) near feed mechanism one side is provided with guiding portion (17), guiding portion (17) one end with guide plate (16) fixed connection, the other end orientation feed mechanism, guiding portion (17) slope sets up, so that two guiding portion (17) orientation feed mechanism (101) one end constitutes open structure.

5. A board grinding machine as defined in claim 1, wherein: the lifting frame (2) is driven to lift through a hydraulic telescopic rod (21); one side of the frame body (32) is provided with an infrared sensor (4), and the infrared sensor (4) is electrically connected with the hydraulic telescopic rod (21) through a controller, so that the uppermost wood board is slightly higher than the conveying belt (12).

6. A wood board grinding machine as defined in claim 5, wherein: one side track (31) at both ends of box (11) all is equipped with first limit switch (411) and second limit switch (412), first limit switch (411) with second limit switch (412) are fixed to be set up both sides in track (31), just first limit switch (411) with second limit switch (412) with the controller electricity is connected.

7. A board grinding machine as defined in claim 1, wherein: the frame body (32) is provided with a cavity (321), and one surface of the frame body (32) facing the lifting frame (2) is provided with a first chute (322) communicated with the cavity (321);

the clamping driving part is arranged in the cavity (321), the clamping driving part comprises a driving rod (5) and a clamping motor (51), two ends of the driving rod (5) are respectively connected with the frame body (32) in a rotating mode, the directions of threads at two ends of the driving rod (5) are opposite, a first connecting piece (501) is sleeved at two ends of the driving rod (5), one end of the first connecting piece (501) is connected with the driving rod (5) in a threaded mode, the other end of the first connecting piece passes through a first sliding groove (322) to penetrate out of the cavity (321) and is fixedly connected with the clamping plate (33), and the clamping motor (51) is connected with the driving rod (5) in a transmission mode so that two clamping plates (33) can move in opposite directions.

8. A board grinding machine as defined in claim 1, wherein: the opposite surfaces of the two clamping plates (33) are provided with clamping insections (331).