CN106863522B - Automatic log barking machine - Google Patents

Abstract

The invention discloses an automatic log barking machine, which comprises a rack and a control system and is characterized in that a front material pressing device, a barking device and a rear material pressing device are arranged on the rack, the front material pressing device, the barking device and the rear material pressing device are sequentially arranged on the rack from front to back, the front material pressing device and the rear material pressing device respectively comprise a conveying device and a material pressing device, and the material pressing devices are positioned above the conveying device.

Description

Automatic log peeling machine

technical field

The invention relates to the technical field of woodworking machinery, in particular to an automatic log peeling machine.

Background technique

In the production of wood-based panels or pulp, the raw material is logs, and the final product is fiberboard or pulp. The bark of the logs is considered to affect the quality of the products, and the logs need to be peeled.

After searching, CN201505971 discloses a tree peeling machine, and CN201693626 discloses a double-drum log automatic peeling machine, which all place the log in the peeling drum, and use the peeling knife on the inner surface of the peeling drum to peel the log.

CN201537960 discloses a chain-driven log automatic peeling machine, which places the log in a peeling drum, and uses the peeling teeth on the inner surface of the peeling drum to peel the log.

CN201353812 discloses a wood peeling machine, the peeling roller is a round roller, and the surface of the round roller is provided with several groups of identical peeling teeth.

CN201261207 discloses a roller type wood peeling machine, which also utilizes a mountain-shaped scraper arranged on a peeling roller for peeling.

The advantage of the above-mentioned technical scheme is that it is suitable for processing logs that are straight, round in diameter, and have a smooth surface without nodules. There are many curved, irregular cross-sections, and nodules on the surface. In the peeling process, in order to ensure complete peeling, a part of the slab is usually peeled off, resulting in unnecessary waste of the slab; and because the log Large and heavy tonnage, lifting equipment is usually required to move the log to the rotary cutter, and the log is passively rotated axially for peeling. After the peeling is completed, the peeled log is lifted out by manual lifting equipment, and then a section of log is hoisted Carry out peeling, cause operation program complexity, work efficiency is low.

In order to solve the above technical problems, CN85103381 discloses a method for peeling along the log surface and an invention patent of a peeling machine. When cutting and peeling the bark, the log is only fed longitudinally, with a rotary knife for cutting and peeling. The disc is rotated by the motor through the V-belt to cut and peel the bark of the log. The rotating cutter disc equipped with a cutting and stripping knife moves along the vertical and horizontal slideways to any position in the vertical and horizontal directions. The center of the cutter disc tracks the center of the stripped surface. This structure The substantive deficiency is that: due to the different types of logs, the hardness of the skin is different. Therefore, when peeling, the operator can only manually adjust the booster bolt and the booster nut according to experience, so as to transmit the pressure of the single-knife buffer spring to the balance ring. The pressure is transmitted to the rotating body of the cutter head, and then the circular peeling can be performed, resulting in inconvenient operation, time-consuming and labor-intensive work, and low work efficiency.

Contents of the invention

The purpose of the present invention is to solve the deficiencies of the prior art and provide an automatic log peeling machine with novel structure, thorough peeling, energy saving, convenient operation, high work efficiency, high board yield, precise processing and stable operation.

The technical solution adopted by the present invention to solve its technical problems is:

An automatic log peeling machine, including a frame and a control system, is characterized in that the frame is provided with a front pressing device, a peeling device and a rear pressing device, and the front pressing device, the peeling device and the rear pressing device are in the The frame is arranged in turn from front to back, the front pressing device and the rear pressing device respectively include a conveying device and a pressing device, and the pressing device is located above the conveying device, wherein,

The conveying device includes a sprocket I, a sprocket II, a conveying chain, a conveying shaft I, a conveying shaft II and a conveying servo motor. The front part of the lower beam of the frame is provided with a conveying shaft I, and the rear part is provided with a conveying shaft II. The two ends of the conveying shaft I are fixedly connected to the front end of the lower crossbeam through bearings and bearing seats respectively, and are driven by a conveying servo motor. The two ends of the conveying shaft II are fixedly connected to the rear end of the lower crossbeam through bearings and bearing seats respectively. Sprocket I is symmetrically arranged on the conveying shaft I, respectively, and sprocket II is symmetrically arranged on the conveying shaft II, and sprocket I is connected with sprocket II through a conveying chain, and V-shaped chain Plate, so that the conveying servo motor drives the conveying shaft I to rotate, and the sprocket I drives the conveying chain to rotate, thereby achieving the function of conveying logs;

The pressing device includes a pressure roller connection frame, a pressure roller cylinder, a lifting slide rail, a pressure roller connection frame, a sliding sleeve, a pressure roller I, and a pressure roller II. The pressure roller cylinder is controlled by a control system, and the pressure roller The roller cylinder is fixed on the upper beam of the frame, and the lower end of the telescopic rod of the pressure roller cylinder is fixedly connected with the pressure roller connecting frame. Ⅱ. There are sliding sleeves on the left and right sides of the pressure roller connecting frame, and the sliding sleeves are slidingly connected with the lifting slide rail. The upper end of the lifting slide rail is fixedly connected with the upper beam of the frame, and the lower end is connected with the lower beam of the frame. Fixed connection, so that the pressure roller hydraulic cylinder drives the pressure roller Ⅰ and pressure roller Ⅱ on the pressure roller connection frame to press the log on the conveying device, and moves through the conveying chain in the conveying device, so as to facilitate the processing of different diameters or irregular logs. Make the pressure roller hydraulic cylinder automatically drive the pressure roller Ⅰ and pressure roller Ⅱ to move up and down, so as to achieve the function of clamping and automatically conveying logs;

The peeling device includes a rotary cutterhead frame, a cutterhead frame lifting cylinder, a rotary cutterhead, a cutterhead rotary motor, a rotary shaft, a rotary bearing, a rotary gear, a front baffle, a rear baffle and a stripping knife device. The two sides of the cutter frame are respectively equipped with a lifting cylinder and a lifting sliding sleeve, and are slidably connected with the slide rail provided on the inside of the frame through the lifting sliding sleeve. There is a rotary shaft in the center, a front baffle at the front end, and a rear baffle at the rear end;

There is a rotary cavity in the rotary cutter frame, and a log perforation is arranged in the center of the rotary shaft. The rotary shaft in the rotary cavity is sequentially covered with a rotary cutter head, a rotary gear, a rotary bearing and The rear baffle, the front end of the outer ring of the slewing bearing is fixedly connected to the sealing cover, the rear end is fixedly connected to the back baffle through the bearing seat, the inner ring of the slewing bearing is fixedly connected to the rotary shaft, and the inner ring of the rotary cutterhead is connected to the rotary shaft. The rotating shaft is fixedly connected, the front end of the outer ring is slidingly connected to the front baffle through the sealing ring, the rear end of the outer ring is fixedly connected to the rotary gear, and the rotary gear is connected to the driving wheel of the rotary motor of the cutter head through the transmission belt, so as to facilitate the rotation of the cutter head The motor drives the rotary gear to rotate through the transmission belt, and the rotary gear drives the rotary cutterhead and the rotary shaft to rotate. The rotary cutterhead is provided with a stripping device in a circular array with the center of the rotary cutterhead as the center;

The knife stripping device includes a knife head cylinder, a knife bar support shaft, a cylinder connecting rod, a knife head connecting rod, a peeling knife head, a support shaft bearing and a support shaft bearing sleeve, and the knife bar support shaft passes through the rotary cutter head and passes through The fulcrum bearing and the fulcrum bearing sleeve are fixed on the rotary cutter head. One end of the fulcrum fulcrum is fixedly connected to the connecting rod of the cylinder, and the other end is connected to the connecting rod of the cutter head. The other end of the connecting rod of the cylinder is fixed to the rotary The cutter head cylinder on the cutter head is connected, and the other end of the cutter head connecting rod is fixedly connected with the peeling cutter head. The cutter head cylinder is controlled by the control system, so as to control the peeling cutter head and the log through the control system according to the on-site peeling situation. The pressure, and by adjusting the ratio of the rotating speed of the rotary cutter head to the conveying speed and the pressure of the peeling head, the peeling head on the rotary cutter head will generate centrifugal force under the action of the rotation of the rotary cutter head, and jointly control the irregularities conveyed in the axial direction. Logs are automatically rotated and peeled to avoid unnecessary waste of the board. The lower end of the cutter frame lifting cylinder is fixedly connected to the frame, and the upper end is fixedly connected to the rotary cutter frame through a telescopic rod. The cutter frame lifting cylinder Controlled by the control system, it is beneficial to control the lifting cylinder of the cutter head frame through the control system to drive the rotary cutter head frame to rise or fall, so as to automatically adjust the center position of the rotary cutter head in the rotary cutter head frame according to logs of different diameters, ensuring that the log Input with the best axis.

In the present invention, at least three short wood squeeze roller devices can be arranged on the rear baffle plate of the rotary cutter frame with the axis of the rotary shaft as the center circle, and the short wood squeeze roller devices include squeeze rollers, squeeze roller cylinders, Squeeze roller connecting plate, linkage rod, hinge shaft and squeeze roller bushing, the hinge shaft is fixed on the rear baffle, the squeeze roller connecting plate is hinged on the hinge shaft, and the adjacent squeezing roller connecting plates are connected through the linkage rod , one of the squeeze roller connecting plates is connected with the telescopic rod of the squeeze roller cylinder fixed on the tailgate, and the inner end of the squeeze roller connecting plate is provided with a squeeze roller bushing, and the squeeze roller is connected with the squeeze roller bushing through a bearing , so that the extrusion rollers form a circular array with the center of the rotary shaft as the center of the circle, and assist in clamping the logs. The surface of the extrusion rollers is provided with nail teeth to facilitate the increase of the gripping force on the wood. The extrusion roller cylinder is controlled by the control system. When When clamping a short log, the cylinder of the squeezing roller moves to drive the connecting plate of the squeezing roller to rotate around the hinge shaft, and drives at least three squeezing rollers around the rotary shaft to clamp and transport the log at three points on the circumference of the log to avoid short logs. The log cannot be peeled when the front and rear pressure rollers are squeezed at the same time, which will cause the log to move and damage the machine tool.

In the present invention, a front counting device can be provided on the frame on one side of the front pressing device, and a rear counting device can be arranged on the frame on one side of the rear pressing device. The front counting device and the rear counting device are respectively It is connected with the control system, so as to count the lifting distance of the front pressing device through the front counting device and upload it to the control system. The rear counting device counts the lifting distance of the rear pressing device and uploads it to the control system. The control system according to The information then instructs the action of the pressure roller hydraulic cylinder in the front pressing device to adjust the positions of pressure roller I and pressure roller II in real time, so that pressure roller I and pressure roller II can compress the logs according to the size of the logs in real time, ensuring the stable transportation of logs .

In the present invention, a cutter head counting device can also be provided on the frame on one side of the peeling device, and the cutter head counting device is connected with the control system, so as to facilitate counting the lifting distance of the peeling device by the cutter head counting device and Uploaded to the control system, the control system then instructs the lift cylinders on both sides of the peeling device to move, driving the rotary cutter frame to move to the best center position of the log, so that the peeling head on the rotary cutter frame is always aligned with the direction of the log. Rotary peeling is performed on the outer periphery to achieve precise processing, thorough peeling, avoiding waste of boards, and low board yield.

In the present invention, guide baffles can be provided on the lower beams on both sides of the conveying device, and the upper surface of the guide baffle is provided with an arc-shaped inclined surface, and the arc-shaped inclined surface is gradually inclined upward from the end of the conveying chain to achieve The role of guiding logs.

The pressure roller I and the pressure roller II of the present invention are composed of a roller shaft and a unit pressure ring respectively, and the unit pressure rings are arranged at intervals on the roller shaft, and the diameter of the unit pressure ring on the roller shaft gradually increases from the center to both ends. Large, in order to facilitate the clamping of the logs while keeping the logs always conveyed in a straight line in the center.

Due to the adoption of the above-mentioned structure, the present invention has the advantages of novel structure, thorough peeling, energy saving, convenient operation, high board yield, precise processing, stable operation and the like.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention.

Fig. 2 is a front view of Fig. 1 .

Fig. 3 is a left side view of Fig. 1 .

Fig. 4 is a right side view of Fig. 1 .

FIG. 5 is a top view of FIG. 2 .

Fig. 6 is a structural schematic diagram of the peeling device 3 in the present invention.

Fig. 7 is a rear view of Fig. 6, which is also a schematic structural view of the short log extruding roller device in the present invention.

Fig. 8 is a sectional view of A-A in Fig. 6 .

FIG. 9 is a left side view of FIG. 6 .

Reference signs: frame 1, front pressing device 2, peeling device 3, rear pressing device 4, sprocket I5, sprocket II6, conveying chain 7, conveying shaft I8, conveying shaft II9, conveying servo motor 10, lower Beam 11, V-shaped chain plate 12, pressure roller connecting frame 14, pressure roller hydraulic cylinder 15, lifting slide rail 16, sliding sleeve 18, pressure roller Ⅰ19, pressure roller Ⅱ20, upper beam 21, rotary cutter frame 22, cutter head Frame lift cylinder 23, rotary cutterhead 24, cutterhead rotary motor 25, rotary shaft 26, rotary bearing 27, rotary gear 28, front baffle 29, rear baffle 30, bearing seat 31, cutter head cylinder 32, cutter bar Support shaft 33, cylinder connecting rod 34, cutter head connecting rod 35, peeling cutter head 36, supporting shaft bearing 37, supporting shaft bearing sleeve 38, lifting sliding sleeve 39, slide rail 40, squeeze roller 41, squeeze roller cylinder 42, squeeze Roller connecting plate 43, linkage rod 44, hinge shaft 45, extrusion roller sleeve 46, chain 47, counter 48, counting servo motor 49, upper sprocket 50, lower sprocket 51, connecting block 52, guide baffle 55, front Counting device 53-1, cutter head counting device 53-2, rear counting device 53-3, control system 54.

Detailed ways

The present invention will be described below in conjunction with the accompanying drawings.

As shown in the accompanying drawings, a log automatic peeling machine includes a frame 1 and a control system 54, and is characterized in that the frame 1 is provided with a front pressing device 2, a peeling device 3 and a rear pressing device 4, the front The pressing device 2, the peeling device 3 and the rear pressing device 4 are arranged in sequence from front to back on the frame 1, and the front pressing device 2 and the rear pressing device 4 include a conveying device and a pressing device respectively, and the The pressing device is located above the conveying device, wherein,

The conveying device includes a sprocket I5, a sprocket II6, a conveying chain 7, a conveying shaft I8, a conveying shaft II9 and a conveying servo motor 10, and the lower crossbeam 11 of the frame 1 is provided with a conveying shaft I8 at the front and at the rear. There is a conveying shaft II9, the two ends of the conveying shaft I8 are fixedly connected to the front end of the lower beam 11 through bearings and bearing seats respectively, and driven by the conveying servo motor 10, and the two ends of the conveying shaft II9 are respectively passed through bearings, bearing seats and the lower beam 11. The rear end is fixedly connected. The conveying shaft I8 is respectively symmetrically provided with sprocket I5, and the conveying shaft II9 is respectively symmetrically provided with sprocket II6. The sprocket I5 is connected with the sprocket II6 through the conveying chain 7. The conveyor chain 7 is provided with a V-shaped chain plate 12, so that the conveyor servo motor 10 drives the conveyor shaft I8 to rotate, and the chain wheel I5 drives the conveyor chain 7 to rotate, thereby achieving the function of conveying logs;

The pressing device includes a pressing roller connecting frame 14, a pressing roller hydraulic cylinder 15, a lifting slide rail 16, a sliding sleeve 18, a pressing roller I 19, and a pressing roller II 20. The pressing roller hydraulic cylinder 15 is controlled by a control system, and the pressing roller The roller cylinder 15 is fixed on the upper beam 21 of the frame 1, the lower end of the telescopic rod of the pressure roller cylinder 15 is fixedly connected with the pressure roller connection frame 14, and the pressure roller connection frame 14 is provided with a pressure roller I19 at the front, The rear part is provided with pressure roller II 20, and the left and right sides of the pressure roller connecting frame 14 are respectively provided with sliding sleeves 18, and the sliding sleeves 18 are slidingly connected with the lifting slide rail 16, and the upper end of the lifting slide rail 16 is connected with the frame 1. The upper beam 21 is fixedly connected, and the lower end is fixedly connected with the lower beam 11 of the frame 1, so that the pressure roller hydraulic cylinder 15 drives the pressure roller I19 and the pressure roller II20 on the pressure roller connection frame 14 to press the log on the conveying device, and through The conveying chain 7 in the conveying device moves to facilitate the pressure roller hydraulic cylinder 15 to automatically drive the pressure roller Ⅰ19 and the pressure roller Ⅱ20 to move up and down according to different diameters or irregular logs, so as to achieve the function of clamping and automatically conveying the logs during the process of conveying logs ;

Described peeling device 3 comprises rotary cutterhead frame 22, cutterhead frame lift cylinder 23, rotary cutterhead 24, cutterhead rotary motor 25, rotary shaft 26, rotary bearing 27, rotary gear 28, front baffle plate 29, backstop Plate 30 and knife stripping device, the two sides of the rotary cutter frame 22 are respectively provided with a cutter frame lifting cylinder 23 and a lifting sliding sleeve 39, and slide through the lifting sliding sleeve 39 and the slide rail 40 provided on the inside of the frame 1 Connected, the upper end of the rotary cutter head frame 22 is provided with a cutter head rotary motor 25, the center is provided with a rotary shaft 26, the front end is provided with a front baffle 29, and the rear end is provided with a rear baffle 30,

The rotary cutter frame 22 is provided with a rotary cavity, and the center of the rotary shaft 26 is provided with a log perforation. The rotary shaft 26 in the rotary cavity is sequentially covered with a rotary cutter 24 and a rotary gear from front to back. 28. The slewing bearing 27 and the rear baffle 30, the front end of the outer ring of the slewing bearing 27 is fixedly connected with the sealing cover, the rear end is fixedly connected with the back baffle 30 through the bearing seat 31, the inner ring of the slewing bearing 27 is connected with the rotary shaft 26 Fixed connection, the inner ring of the rotary cutter head 24 is fixedly connected with the rotary shaft 26, the front end of the outer ring is slidably connected with the front baffle plate 29 through the sealing ring, and the rear end of the outer ring is fixedly connected with the rotary gear 28, and the rotary gear 28 is connected through the transmission belt Connect with the driving wheel of the cutterhead rotary motor 25, so as to facilitate the rotation of the rotary gear 28 driven by the cutterhead rotary motor 25 through the transmission belt, and the rotary gear 28 drives the rotary cutterhead 24 and the rotary shaft 26 to rotate. On the rotary cutterhead 24, the The center of the rotary cutter head 24 is provided with a stripping knife device in a circle center circle array,

Described knife stripping device comprises cutter head cylinder 32, cutter bar pivot 33, cylinder connecting rod 34, cutter head connecting rod 35, peeling cutter head 36, fulcrum bearing 37 and fulcrum bearing sleeve 38, and described cutter bar pivot 33 passes through the rotary cutterhead 24 and is fixed on the rotary cutterhead 24 through the fulcrum bearing 37 and the fulcrum bearing sleeve 38. One end of the cutter bar fulcrum 33 is fixedly connected with the cylinder connecting rod 34, and the other end is connected with the cutter head connecting rod 35, the other end of the cylinder connecting rod 34 is connected with the cutter head cylinder 32 fixed on the rotary cutter head 24, the other end of the cutter head connecting rod 35 is fixedly connected with the peeling cutter head 36, and the cutter head cylinder 32 is controlled by the control system, so as to control the pressure of the peeling cutter head 36 and the log through the control system according to the on-site peeling situation, and by adjusting the ratio of the rotating speed of the rotary cutter head 24 to the conveying speed and the pressure of the peeling cutter head 36, the rotary cutter head The peeling cutter head 36 on the 24 generates centrifugal force under the rotation of the rotary cutter head 24, and automatically rotates and peels the irregular logs conveyed in the axial direction together to avoid unnecessary waste of the board. The lower end of 23 is fixedly connected with the frame 1, and the upper end is fixedly connected with the rotary cutter frame 22 through the telescopic rod. The lifting cylinder 23 of the cutter frame is controlled by the control system, so as to facilitate the control system to control the lifting cylinder 23 of the cutter frame to drive The rotary cutterhead frame 22 rises or falls, and then reaches the center position of the rotary cutterhead 24 in the rotary cutterhead frame 22 automatically adjusted according to logs of different diameters, to ensure that logs are input with the best axis.

In the present invention, at least three short wood extrusion roller devices can be arranged on the rear baffle plate 30 of the rotary cutter head frame 22 with the axis center of the rotary shaft 26 as the center circle array, and the short wood extrusion roller devices include extrusion rollers 41, Squeeze roller cylinder 42, squeeze roller connecting plate 43, linkage rod 44, hinge shaft 45 and squeeze roller bushing 46, described hinge shaft 45 is fixed on the rear baffle plate 30, described squeeze roller connecting plate 43 is hinged on hinge shaft 45 On the top, adjacent squeeze roller connecting plates 43 are connected through linkage rods 44, one of which squeeze roller connecting plates 43 is connected with the telescopic rod of the squeezing roller cylinder 42 fixed on the rear baffle 30, and the inner end of the squeezing roller connecting plates 43 is set There is a squeeze roller sleeve 46, and the squeeze roller 41 is connected with the squeeze roller sleeve 46 through a bearing, so that the squeeze roller 41 forms a circular array with the center of the rotary shaft 26 as the center of a circle, and assists in clamping logs. The surface of the squeeze roller 41 is arranged There are nail teeth, in order to increase the gripping force on the wood, the squeeze roller cylinder 42 is controlled by the control system, when the short log is to be clamped, the squeeze roller cylinder 42 moves to drive the squeeze roller connecting plate 43 with the hinge shaft 45 as the The center rotates to drive at least three squeeze rollers 41 around the rotary shaft 26 to carry out three-point clamping and conveying on the circumference of the log, so as to prevent short logs from being peeled when the front and rear pressure rollers are squeezed at the same time, causing damage to the machine tool due to log movement .

In the present invention, a front counting device 53-1 may be provided on the frame 1 on one side of the front pressing device 2, and a rear counting device 53-3 may be provided on the frame 1 on one side of the rear pressing device 4, The front counting device 53-1 and the rear counting device 53-3 are respectively connected with the control system, so that the lifting distance of the front pressing device 2 is counted by the front counting device 53-1 and uploaded to the control system. The device 53-3 counts the lifting distance of the rear pressing device 4 and uploads it to the control system, and the control system instructs the pressure roller cylinder 15 in the front pressing device 2 to operate according to the information, and adjusts the pressure roller I19 and pressure roller II20 in real time The position of the pressure roller Ⅰ19 and pressure roller Ⅱ20 can compress the log according to the size of the log in real time, ensuring the stable transportation of the log.

The present invention also can be provided with cutterhead counting device 53-2 on the frame 1 of described peeling device 3 side, and described cutterhead counting device 53-2 is connected with control system, in order to facilitate through cutterhead counting device 53 -2 Count the lifting distance of the peeling device 3 and upload it to the control system, and the control system then instructs the lifting cylinders 23 on both sides of the peeling device 3 to move, driving the rotary cutter frame 22 to move to the optimal center position of the log , so that the peeling cutter head 36 on the rotary cutter head frame 22 rotates and peels the outer circumference of the log all the time, so as to achieve precise processing, complete peeling, avoid waste of boards, and low board output rate.

The front counting device 53-1 and the rear counting device 53-3 of the present invention include respectively a chain 47, a counter 48, a counting servo motor 49, an upper sprocket 50 and a lower sprocket 51. The embodiment adopts the front counting device 53-1), the pressure roller connecting frame 14 side of the pressing device is respectively provided with connecting blocks 52, and the connecting blocks 52 are fixedly connected with the chain 47, and one end of the chain 47 It is connected with the upper sprocket 50, and the other end is connected with the lower sprocket 51. The upper sprocket 50 and the lower sprocket 51 are arranged up and down, and the lower sprocket 51 is fixed on the frame 1 through the bearing. The upper sprocket 50 is connected with the upper small shaft fixed on the frame 1 through the bearing, and the upper small shaft is driven by the counting servo motor 49 and connected with the counter 48. The counter 48 and The counting servo motor 49 is respectively connected with the control system, so that when the front pressing device 2 and the rear pressing device 4 are raised and lowered under the drive of the pressure roller cylinder 15, the chain 47 is driven to rotate through the connecting block 52, and then the counting servo motor is driven. 49 rotation, counted by the counter 48, and uploaded to the control system, the control system instructs the pressure roller hydraulic cylinder 15 in the front pressing device 2 to act according to the information, and adjusts the position of the pressure roller I19 and pressure roller II20 in real time, so that the pressure roller Roller Ⅰ19 and pressure roller Ⅱ20 compress the log according to the size of the log in real time, ensuring the stable transportation of the log.

The cutterhead counting device 53-2 of the present invention includes a chain, a counter, a counting servo motor, an upper sprocket and a lower sprocket, and the lifting sliding sleeve 39 on one side of the rotary cutterhead frame 22 is fixed to the chain through a sliding sleeve connecting block. One end of the chain is connected with the upper sprocket, and the other end is connected with the lower sprocket. The upper sprocket and the lower sprocket are arranged up and down, and the lower sprocket is connected with the lower sprocket fixed on the frame 1 through the bearing. The small shaft is connected, the upper sprocket is connected with the upper small shaft fixed on the frame 1 through the bearing, the upper small shaft is driven by the counting servo motor, and connected with the counter, so that the counter can record the rise or fall in real time. The falling data, and the data information is uploaded to the control system, and the control system instructs the cutter head lifting cylinder 23 to move, so that the rotary cutter head 22 moves to the relative center position of the log according to the calculated diameter and starts peeling. The center of the rotary cutterhead 24 is also always at the theoretical axis position of the log, and the peeling cutter head 36 on the rotary cutterhead frame 22 is rotated and peeled under the action of centrifugal force and pressure, which ensures that the peeling knife rotates against the log in progress. Perform precise peeling processing.

In the present invention, guide baffles 55 can be provided on the lower crossbeams 11 on both sides of the conveying device, and the upper end surface of the guide baffles 55 is provided with an arc-shaped slope, and the arc-shaped slope is gradually upward from the conveying chain 7 ends outward. Inclined to guide the logs.

The pressure roller I19 and the pressure roller II20 of the present invention are composed of a roller shaft and a unit pressure ring respectively, and the unit pressure rings are arranged at intervals on the roller shaft, and the diameter of the unit pressure ring on the roller shaft gradually increases from the center to both ends. Large, in order to facilitate the clamping of the logs while keeping the logs always conveyed in a straight line in the center.

When the present invention is working, start the control system, at first according to the peeling situation of the log on the spot, input the ratio of the cutter head speed and the conveying speed and the pressure value of the peeling cutter head 36 on the control system, when the signal of the log arrives at the conveying device is uploaded to Control system, the control system is to command the action of the conveying servo motor 10 to drive one end of the log to move axially to the peeling device 3. At the same time, the pressure roller cylinder 15 in the front pressing device 2 and the rear pressing device 4 moves to drive the pressing roller to connect The pressure roller I19 and pressure roller II20 on the frame 14 press the log on the conveying device, and continue to move through the conveying chain 7 in the conveying device. The connecting block 52 drives the chain 47 to rotate, and the chain 47 drives the counting servo motor 49 to rotate, and the information is uploaded to the control system in real time through the counter 48, and then the actual diameter of the log is calculated by the control system, and the cutter head is commanded according to the calculated log diameter value The frame lifting cylinder 23 acts, and during the downward movement of the rotary cutter frame 22, the downward movement distance of the rotary cutter frame 22 is counted by the counter on the side of the rotary cutter frame 22, so that the center of the rotary cutter frame 22 Always consistent with the axis of the log, and through the action of the cutterhead rotary motor 25 and the cutterhead cylinder 32, the cutterhead rotary motor 25 drives the rotary cutterhead 24 to rotate, and the air source passes the gas to the cutterhead cylinder 32, and the peeling knife The head 36 generates centrifugal force under the rotation of the rotary cutter head 24, and under the action of the centrifugal force, the cutter head pushes against the log surface, and under the rotation of the rotary cutter head 24 and the effect of the cutter head cylinder 32, the log epidermis in progress is carried out. Rotary peeling, in the process of rotary peeling, because the diameter of the irregular log or the large or small head of the log changes from time to time, the control system automatically commands the lifting cylinder 23 of the cutter head frame to move up and down to drive the rotary knife The disk frame 22 moves up and down, so that the rotary cutter head frame 22 always moves the rotary cutter head 24 to the correct position, and the pressure roller hydraulic cylinder 15 will also drive the pressure roller I19, pressure roller Ⅱ20 floats freely up and down with the change of the log diameter, ensuring that the log is not stuck during the conveying process, and achieves the effect of thorough, fine and precise processing; when the short log cannot be simultaneously pressed by the front pressing device 2 and the rear pressing device When the device 4 is squeezed, the control system instructs the squeeze roller cylinder 42 to act, and drives the squeeze roller connecting plate 43 to rotate around the hinge shaft 45, driving at least three squeeze rollers 41 around the rotary shaft 26 to move around the outer circumference of the log in the peeling process. Three-point rolling clamping is carried out to prevent short logs from being peeled when the front and rear pressure rollers are squeezed at the same time, which will cause damage to the machine tool due to log movement.

Due to the adoption of the above-mentioned structure, the present invention has the advantages of novel structure, thorough peeling, energy saving, convenient operation, high board yield, precise processing, stable operation and the like.

Claims (3)

1. A log automatic peeling machine, comprising a frame and a control system, is characterized in that the frame is provided with a front pressing device, a peeling device and a rear pressing device, and the front pressing device, a peeling device and a rear pressing device are The device is arranged on the frame from front to back, the front pressing device and the rear pressing device respectively include a conveying device and a pressing device, and the pressing device is located above the conveying device, wherein, The conveying device includes a sprocket I, a sprocket II, a conveying chain, a conveying shaft I, a conveying shaft II and a conveying servo motor. The front part of the lower beam of the frame is provided with a conveying shaft I, and the rear part is provided with a conveying shaft II. The two ends of the conveying shaft I are fixedly connected to the front end of the lower crossbeam through bearings and bearing seats respectively, and are driven by a conveying servo motor. The two ends of the conveying shaft II are fixedly connected to the rear end of the lower crossbeam through bearings and bearing seats respectively. Sprocket I is symmetrically arranged on the conveying shaft I, respectively, and sprocket II is symmetrically arranged on the conveying shaft II, and sprocket I is connected with sprocket II through a conveying chain, and V-shaped chain Plate, so that the conveying servo motor drives the conveying shaft I to rotate, and the sprocket I drives the conveying chain to rotate, thereby achieving the function of conveying logs; The pressing device includes a pressure roller connection frame, a pressure roller cylinder, a lifting slide rail, a pressure roller connection frame, a sliding sleeve, a pressure roller I, and a pressure roller II. The pressure roller cylinder is controlled by a control system, and the pressure roller The roller cylinder is fixed on the upper beam of the frame, and the lower end of the telescopic rod of the pressure roller cylinder is fixedly connected with the pressure roller connecting frame. II, the left and right sides of the pressure roller connecting frame are respectively provided with sliding sleeves, the sliding sleeves are slidingly connected with the lifting slide rail, the upper end of the lifting slide rail is fixedly connected with the upper beam of the frame, and the lower end is connected with the lower beam of the frame Fixed connection, so that the pressure roller hydraulic cylinder drives the pressure roller Ⅰ and pressure roller Ⅱ on the pressure roller connection frame to press the log on the conveying device, and moves through the conveying chain in the conveying device; The peeling device includes a rotary cutterhead frame, a cutterhead frame lifting cylinder, a rotary cutterhead, a cutterhead rotary motor, a rotary shaft, a rotary bearing, a rotary gear, a front baffle, a rear baffle and a stripping knife device. The two sides of the cutter frame are respectively equipped with a lifting cylinder and a lifting sliding sleeve, and are slidably connected with the slide rail provided on the inside of the frame through the lifting sliding sleeve. There is a rotary shaft in the center, a front baffle at the front end, and a rear baffle at the rear end; There is a rotary cavity in the rotary cutter frame, and a log perforation is arranged in the center of the rotary shaft. The rotary shaft in the rotary cavity is sequentially covered with a rotary cutter head, a rotary gear, a rotary bearing and The rear baffle, the front end of the outer ring of the slewing bearing is fixedly connected to the sealing cover, the rear end is fixedly connected to the back baffle through the bearing seat, the inner ring of the slewing bearing is fixedly connected to the rotary shaft, and the inner ring of the rotary cutterhead is connected to the rotary shaft. The rotating shaft is fixedly connected, the front end of the outer ring is slidingly connected to the front baffle through the sealing ring, and the rear end of the outer ring is fixedly connected to the rotary gear, and the rotary gear is connected to the driving wheel of the rotary motor of the cutterhead through a transmission belt; The knife stripping device includes a knife head cylinder, a knife bar support shaft, a cylinder connecting rod, a knife head connecting rod, a peeling knife head, a support shaft bearing and a support shaft bearing sleeve, and the knife bar support shaft passes through the rotary cutter head and passes through The fulcrum bearing and the fulcrum bearing sleeve are fixed on the rotary cutter head. One end of the fulcrum fulcrum is fixedly connected to the connecting rod of the cylinder, and the other end is connected to the connecting rod of the cutter head. The other end of the connecting rod of the cylinder is fixed to the rotary The cutterhead cylinders on the cutter head are connected, the other end of the cutter head connecting rod is fixedly connected with the peeling cutter head, the cutter head cylinder is controlled by the control system, and the lower end of the cutter head lifting cylinder is fixedly connected with the frame. The upper end is fixedly connected to the rotary cutter frame through the telescopic rod, and the lifting cylinder of the cutter frame is controlled by the control system; on the rear baffle of the rotary cutter frame, there are at least three circular arrays centered on the axis of the rotary shaft A short wood squeeze roller device, the short wood squeeze roller device includes a squeeze roller, a squeeze roller cylinder, a squeeze roller connecting plate, a linkage rod, a hinge shaft and a squeeze roller bushing, the hinge shaft is fixed on the tailgate, and the The connecting plates of squeeze rollers are hinged on the hinge shaft, and the connecting plates of adjacent squeezing rollers are connected through linkage rods. There is a squeeze roller sleeve at the end, the squeeze roller is connected with the squeeze roller sleeve through a bearing, the surface of the squeeze roller is provided with nail teeth, and the squeeze roller cylinder is controlled by the control system; A front counting device is provided on the frame of the rear pressing device, and a rear counting device is provided on the frame on one side of the rear pressing device, and the front counting device and the rear counting device are respectively connected with the control system; one side of the peeling device A cutterhead counting device is provided on the frame, and the cutterhead counting device is connected with the control system; when the shorter log cannot be squeezed by the front pressing device and the rear pressing device at the same time during the conveying process, the control system will immediately Command the squeeze roller device to operate, drive the squeeze roller connecting plate to rotate around the hinge shaft, and drive at least three squeeze rollers around the rotary shaft to perform three-point rolling clamping on the outer periphery of the log in the process of peeling. 2. A kind of log automatic peeling machine according to claim 1, it is characterized in that guide baffles are provided on the lower beams on both sides of the conveying device, the upper end of the guide baffles is provided with an arc-shaped slope, the The arc-shaped slope gradually slopes upward from the end of the conveyor chain to the outside. 3. A log automatic peeling machine according to claim 1 or 2, characterized in that said pressure roller I and pressure roller II are respectively composed of a roller shaft and a unit pressure ring, and said roller shafts are provided with unit pressure ring, and the diameter of the unit pressure ring on the roller gradually increases from the center to both ends.

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