CN217098169U

CN217098169U - Raw wood surface extruding and conveying device

Info

Publication number: CN217098169U
Application number: CN202123421913.5U
Authority: CN
Inventors: 王成瑞; 王术进; 徐伟; 祁世飞; 邓斌; 邹霞; 孙培通; 许洪畅; 张莉英
Original assignee: SHANDONG BAISHENGYUAN GROUP CO Ltd
Current assignee: SHANDONG BAISHENGYUAN GROUP CO Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-02
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a log epidermis extrusion conveyor, including the carriage, its characterized in that the carriage front end is equipped with log epidermis extrusion conveyor, it includes braced frame, goes up extrusion device, lower knock-out roller device, level to crowded device and controlling means, braced frame lower extreme and stand fixed connection, through lower link fixed connection between the adjacent stand, be equipped with on the entablature on braced frame upper portion can extrude log upper arc surface last extrusion device, the symmetry is equipped with the level that can extrude log both sides arc surface on the stand of both sides and crowds the device, go up extrusion device below and correspond and be equipped with the lower knock-out roller device that can extrude log lower arc surface, lower knock-out roller device installs in the carriage front end, carries out the roll extrusion conveying to the circumference epidermis of log jointly, crowd the bits epidermis to pieces, further assist automatic log barker to skin the very high log epidermis completely, so as to achieve the function of peeling the skins of various logs.

Description

Raw wood surface extruding and conveying device

Technical Field

The utility model belongs to the technical field of forestry machinery technique and specifically relates to a log epidermis extrusion conveyor.

Background

As is well known, because the log has a lot of curves and irregular cross sections in the growing process and has nodules on the surface, in the peeling process, in order to ensure the peeling is thorough, a part of the veneer is usually peeled to reach, which results in unnecessary waste of the veneer; and because the log is thick and has heavy tonnage, the log is usually moved to a rotary cutter by a lifting device, the log is passively and axially rotated to be peeled, after peeling is finished, the peeled log is lifted out by manually operating the lifting device, and then the next section of log is lifted to be peeled, so that the operation procedure is complex and the working efficiency is low.

In order to solve the technical problem, CN206520070U discloses an automatic log barker's utility model patent, which comprises a frame and a control system, be equipped with preceding press device, device of skinning and back press device in the frame, preceding press device, device of skinning and back press device set gradually by preceding to back in the frame, preceding press device and back press device include conveyor and press device respectively, just press device is located the conveyor top, this novel structure, skin thoroughly, energy saving, convenient operation, go out the advantage such as board rate height, processing accuracy, operate steadily. However, the peeling degree of the log skin with great hardness is not very thorough.

Disclosure of Invention

The utility model discloses a solve above-mentioned prior art's substantive not enough, provide one kind and can extrude the log epidermis in advance, make it not hard up in transportation process, cooperate the automatic peeler of log again to use, can peel off thorough log epidermis extrusion conveyor with the log epidermis.

The utility model provides a technical means that above-mentioned technical problem adopted is:

the utility model provides a log epidermis extrusion conveyor, includes carriage 5, its characterized in that the carriage front end is equipped with log epidermis extrusion conveyor, and it includes braced frame 1, goes up extrusion device 2, lower top roller device 3, level to crowded device 4, braced frame 1 comprises entablature 1-1, lower link and the stand 1-2 of both sides, braced frame lower extreme and stand fixed connection, through lower link fixed connection between the adjacent stand, be equipped with on the entablature 1-1 on braced frame 1 upper portion and can extrude the last extrusion device 2 of log upper arc surface, the symmetry is equipped with the level that can extrude log both sides arc surface on the stand 1-2 of both sides and pushes device 4 mutually, it is equipped with the lower top roller device 3 that can extrude the arc surface under the log correspondingly to go up extrusion device 2 below, lower top roller device 3 is installed at 5 front ends of carriage, go up extrusion device 2, lower top roller device 3, level and to crowded device 4 through controlling means control respectively to make extrusion device 2, lower top roller device 3, level roll extrusion conveying to the circumference epidermis of log jointly to crowded device 4, crowd the bits of broken glass with the log epidermis, further supplementary automatic log barker peels the very high log epidermis completely, reaches the effect that is fit for peeling various log epidermis.

The horizontal counter-extrusion device 4 of the utility model comprises a side press roll 4-1, a horizontal extrusion oil cylinder 4-2, a rotating frame 4-3, a bracket 4-4, a rotating shaft 4-5 and a side roll shaft 4-6, wherein one side of the bracket 4-4 is fixedly connected with the upright post 1-2, the other side is fixed with the rotating shaft 4-5, one side of the rotating frame 4-3 is fixedly connected with the rotating shaft 4-5 through a bearing, the other side is fixedly connected with the side roll shaft 4-6, the side press roll 4-1 is fixed on the side roll shaft 4-6 through a bearing, one end of the horizontal extrusion oil cylinder 4-2 is articulated with the bracket 4-4, the other end is articulated with the rotating frame 4-3, the horizontal extrusion oil cylinder 4-2 is controlled by a control device so as to be beneficial to control the action of the horizontal extrusion oil cylinders 4-2 at both sides of the log through the control device, the rotating frame 4-3 and the side compression rollers 4-1 on the rotating frame 4-3 are pushed to simultaneously extrude the arc surfaces on the two sides of the log, so that the skins on the two sides of the log are loosened, and the automatic stripping in the next step is facilitated.

The upper extrusion device 2 of the utility model comprises a lifting slide seat 2-1, a lifting oil cylinder 2-2, an upper compression roller 2-3, an upper compression roller shaft 2-4 and a connecting plate 2-5, wherein two sides of the lifting slide seat 2-1 are respectively connected with an upright post 1-2 in a sliding way, the upper end of the lifting slide seat 2-1 is fixedly connected with the end part of a telescopic rod of the lifting oil cylinder 2-2 fixed on the upper cross beam 1-1, two sides of the lower end are respectively and symmetrically fixed with the connecting plate 2-5, two ends of the upper compression roller shaft 2-4 are respectively and fixedly connected with the connecting plate 2-5, the upper compression roller 2-3 is fixedly sleeved with the upper compression roller shaft 2-4 through a bearing, the lifting oil cylinder 2-2 is controlled by a control device so as to be beneficial to controlling the lifting oil cylinder 2-2 to lift through the control device, the lifting slide base 2-1 is driven to slide up and down along the upright post 1-2, and then the upper compression roller 2-3 at the lower end of the lifting slide base 2-1 is driven to extrude the upper side surface of the log.

The utility model discloses can go up extrusion device 2 and level and to being equipped with synchronous aggregate unit 6 to 4 intervals to do benefit to and make through synchronous aggregate unit 6 and go up extrusion device 2, level and paste all the time in log peripheral surface to extrusion device 4 and lower top roller device 3, realize synchronous extrusion to the log exocuticle.

The synchronous linkage device 6 of the utility model comprises an upper fixed chain wheel I6-1, an upper fixed wheel shaft I6-2, a lower fixed chain wheel I6-3, a lower fixed wheel shaft I6-4, a lower movable chain wheel I6-5, a lower movable wheel shaft I6-6, a chain I6-7, a lower fixed chain wheel II 6-8, a lower fixed wheel shaft II 6-9, an upper fixed chain wheel II 6-10, an upper fixed wheel shaft II 6-11, an upper movable chain wheel II 6-12, an upper movable wheel shaft II 6-13, a chain II 6-14, an upper connecting frame 6-15 and a lower connecting frame 6-16,

the two sides of the support 4-4 are respectively connected with the upright posts 1-2 in a sliding manner, the upper ends of the two sides of the support 4-4 are respectively fixedly connected with the upper connecting frames 6-15, the lower ends of the two sides of the support 4-4 are respectively fixedly connected with the lower connecting frames 6-16, the upper connecting frames 6-15 are fixed with upper movable wheel shafts II 6-13, the upper movable chain wheels II 6-12 are fixed on the upper movable wheel shafts II 6-13 through bearings,

a lower movable wheel shaft I6-6 is fixed on the lower connecting frame 6-16, a lower movable chain wheel I6-5 is fixed on the lower movable wheel shaft I6-6 through a bearing,

the upper fixed wheel shaft I6-2 is positioned above the lifting slide seat, two ends of the upper fixed wheel shaft I6-2 are respectively and fixedly connected with the upright post 1-2, the two upper fixed wheel wheels I6-1 are respectively fixed on the upper fixed wheel shaft I6-2 through bearings,

the lower fixed wheel shaft I6-4 and the lower fixed wheel shaft II 6-9 are respectively positioned below the bracket 4-4, two ends of the lower fixed wheel shaft I6-4 are respectively and fixedly connected with the upright post 1-2, the two lower fixed chain wheels I6-3 are fixed on the lower fixed wheel shaft I6-4 through bearings,

the upper fixed wheel shaft II 6-11 is positioned in front of the upper fixed wheel shaft I6-2, two ends of the upper fixed wheel shaft II 6-11 are respectively and fixedly connected with the upright post 1-2 through bearings, two upper fixed chain wheels II 6-10 are respectively and fixedly arranged on the upper fixed wheel shaft II 6-11 through bearings,

two sides of a lifting oil cylinder 2-2 at the upper end of the lifting slide seat 2-1 are respectively symmetrically provided with a chain I6-7, two sides of an upper press roll 2-3 at the lower end are respectively symmetrically provided with a chain II 6-14, one end of the chain I6-7 is fixedly connected with the upper end of the lifting slide seat, then extends upwards to bypass the upper part of an upper fixed chain wheel I6-1, extends downwards to bypass the lower part of a lower fixed chain wheel I6-3, then extends upwards to bypass the upper part of a lower movable chain wheel I6-5 and extends downwards, and finally the other end is fixedly connected with an upright post 1-2 through a pull rod I and a nut I,

one end of the chain II 6-14 is fixedly connected with the lower end of the lifting slide seat, then extends downwards to bypass the lower part of the lower fixed chain wheel II 6-8, extends upwards to bypass the upper part of the upper fixed chain wheel II 6-10, extends downwards to bypass the lower part of the upper movable chain wheel II 6-12 and extends upwards, and finally the other end is fixed on the upright post 1-2 through the pull rod II and the nut II, when the lifting oil cylinder drives the upper press roller at the lower end of the lifting slide carriage to move downwards for a certain distance, the support in the horizontal counter-extrusion device is driven to move downwards through the chain I6-7 and the chain II 6-14, the downward moving distance is half of the downward moving distance of the lifting slide seat, so that the upper compression roller 2-3 in the upper extrusion device, the side compression roller 4-6 in the horizontal pair extrusion device and the lower top roller 3-1 in the lower top roller device are guaranteed to be always aligned with the surface of the log for extrusion.

The lower top roller device 3 of the utility model comprises a lower top roller 3-1, a lower roller shaft 3-2, a lower rotating frame 3-3, a top spring 3-4, a linkage wheel 3-5, a driven wheel 3-6 and a synchronous belt 3-7, wherein the front end of the conveying frame is provided with the lower rotating frame 3-3, the rear end of the lower rotating frame 3-3 is fixedly connected with the linkage shaft 5-1 on the conveying frame 5 through a bearing and a bearing seat, the front end is fixedly provided with the lower roller shaft 3-2, the lower end of the front part of the lower rotating frame 3-3 is provided with the top spring 3-4, a driving motor 5-2 on the conveying frame 5 drives the linkage shaft 5-1, the other end of the linkage shaft is fixedly provided with the linkage wheel 3-5, the linkage wheel 3-5 is connected with the driven wheel 3-6 fixed at one end of the lower roller shaft 3-2 through the synchronous belt 3-7, the lower end of the top spring 3-4 is fixedly connected with a cross frame 5-3 at the lower end of the conveying frame 5, the upper end of the top spring is fixedly connected with a lower rotating frame 3-3, the lower top roller 3-1 is fixedly sleeved on a lower roller shaft 3-2 so as to be beneficial to controlling the action of a driving motor through a control device to drive a linkage shaft 5-1 to rotate, the linkage shaft 5-1 drives the logs on the conveying frame 5 to move forwards to the lower top roller 3-1, the lower roller 3-1 is fixed on the lower roller shaft 3-2, the lower roller shaft 3-2 is connected with a linkage wheel 3-5 on the linkage shaft 3-5 through a synchronous belt 3-7 so as to drive the lower top roller 3-1 to rotate and drive the logs to move forwards continuously, and in the process of moving forwards, the lower top roller 3-1 rotates and simultaneously has upward top force of the top spring 3-4, The downward pressure of the upper compression roller 2-3 and the gravity of the log extrude the skin on the lower side of the log upwards under the combined action, so that the skin on the lower side of the log is extruded to be loosened in the conveying process, and the automatic peeling device is further assisted to achieve the effect of peeling thoroughly.

The lower top roller 3-1 of the utility model consists of conical teeth 3-1-1 and unit roller discs 3-1-2, the unit roller discs 3-1-2 are axially arranged along the lower roller shaft 3-2 at intervals, and the diameters of the unit roller discs 3-1-2 arranged at intervals are sequentially increased from the middle part to the two ends of the lower roller shaft 3-2 so as to ensure that the outer sides of the unit roller discs 3-1-2 with different diameters form an arc shape abutting against the surface of a log, the conical teeth 3-1-1 are fixed on the unit roller discs 3-1-2 at intervals on the circumference, thus being beneficial to pricking the surface of the log by the conical teeth 3-1-1 on the unit roller discs 3-1-2 with different diameters when the surface of the log is extruded by the unit roller discs 3-1-2 with different diameters, so that the hard epidermis is pricked into the dense hemp holes to be convenient for peeling.

Go up compression roller 2-3, side compression roller 4-1 and constitute by roller, unit roller dish, tapered tooth respectively, unit roller dish sets up along roller axial interval, and the diameter of the unit roller dish that the interval set up increases from the roller middle to both ends in proper order to make the unit roller dish outside of different diameters form the arc that leans on with log surface counterbalance, unit roller dish circumference interval is fixed with tapered tooth 2-3-3, so as to do benefit to when extruding the log epidermis through the unit roller dish of different diameters, the rethread is pricked the epidermis through tapered tooth 2-3-3 on the unit roller dish for hard epidermis is pricked into the hole of dense numb and is convenient for peel off.

The utility model discloses owing to adopt above-mentioned structure, have novel structure, processing convenience, thoroughly, advantage such as work efficiency height of skinning.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic view of direction a in fig. 1.

Reference numerals: the device comprises a supporting frame 1, an upper crossbeam 1-1 and a vertical column 1-2; the device comprises an upper extrusion device 2, a lifting slide seat 2-1, a lifting oil cylinder 2-2, an upper compression roller 2-3, an upper compression roller shaft 2-4 and a connecting plate 2-5;

the device comprises a lower top roller device 3, a lower top roller 3-1, conical teeth 3-1-1, unit roller discs 3-1-2, a lower roller shaft 3-2, a lower support 3-3, a top spring 3-4, a linkage wheel 3-5, a driven wheel 3-6 and a synchronous belt 3-7;

the device comprises a horizontal counter-extrusion device 4, a side compression roller 4-1, a horizontal extrusion oil cylinder 4-2, a rotating frame 4-3, a bracket 4-4, a rotating shaft 4-5 and a side roller shaft 4-6;

a conveying frame 5, a linkage shaft 5-1, a driving motor 5-2 and a cross frame 5-3

The synchronous linkage device comprises a synchronous linkage device 6, an upper fixed chain wheel I6-1, an upper fixed wheel shaft I6-2, a lower fixed chain wheel I6-3, a lower fixed wheel shaft I6-4, a lower movable chain wheel I6-5, a lower movable wheel shaft I6-6, a chain I6-7, a lower fixed chain wheel II 6-8, a lower fixed wheel shaft II 6-9, an upper fixed chain wheel II 6-10, an upper fixed wheel shaft II 6-11, an upper movable chain wheel II 6-12, an upper movable wheel shaft II 6-13, a chain II 6-14, an upper connecting frame 6-15 and a lower connecting frame 6-16.

Detailed Description

The present invention will be described with reference to the accompanying drawings and examples.

As shown in the attached drawings, a log skin extrusion conveying device comprises a conveying frame 5 and is characterized in that the front end of the conveying frame is provided with a log skin extrusion conveying device which comprises a supporting frame 1, an upper extrusion device 2, a lower top roller device 3, a horizontal extrusion device 4 and a control device, wherein the supporting frame 1 consists of an upper cross beam 1-1, a lower connecting frame and stand columns 1-2 at two sides, the lower end of the supporting frame is fixedly connected with the stand columns, the adjacent stand columns are fixedly connected through the lower connecting frame, the upper cross beam 1-1 at the upper part of the supporting frame 1 is provided with the upper extrusion device 2 capable of extruding the upper arc-shaped surface of a log, the stand columns 1-2 at two sides are symmetrically provided with the horizontal extrusion device 4 capable of extruding the arc-shaped surfaces at two sides of the log, the lower top roller device 3 capable of extruding the lower arc-shaped surface of the log is correspondingly arranged below the upper extrusion device 2, lower top roller device 3 is installed at 5 front ends of carriage, go up extrusion device 2, lower top roller device 3, level and to crowded device 4 through controlling means control respectively to make extrusion device 2, lower top roller device 3, level roll extrusion conveying to the circumference epidermis of log jointly to crowded device 4, crowd the bits of broken glass with the log epidermis, further supplementary automatic log barker peels the very high log epidermis completely, reaches the effect that is fit for peeling various log epidermis.

one end of the chain II 6-14 is fixedly connected with the lower end of the lifting slide seat, then extends downwards to bypass the lower part of the lower fixed chain wheel II 6-8, extends upwards to bypass the upper part of the upper fixed chain wheel II 6-10, extends downwards to bypass the lower part of the upper movable chain wheel II 6-12 and extends upwards, and finally the other end of the chain II is fixed on the upright post 1-2 through the pull rod II and the nut II, when the lifting oil cylinder drives the upper press roll at the lower end of the lifting slide seat to move downwards for a certain distance, the chain I6-7 and the chain II 6-14 drive the support in the horizontal counter-extrusion device to move downwards for a distance which is half of the downward movement distance of the lifting slide seat, so that the upper press roll 2-3 in the upper extrusion device, the side press roll 4-6 in the horizontal counter-extrusion device and the lower top roll 3-1 in the lower top roll device are always aligned with the surface of the log to be extruded.

The utility model discloses preferred embodiment: when in use, the utility model is butted with the feeding end of the log automatic peeling machine, when in use, the control device drives the driving motor 5-2 to act, the driving motor 5-2 drives the driving shaft 5-1 to rotate, the driving shaft 5-1 drives the log on the conveying frame 5 to move forwards, simultaneously, the driving shaft 5-1 drives the synchronous belt 3-7 and the driven wheel 3-6 at the other side of the synchronous belt 3-7 to rotate through the linkage wheel 3-5, the driven wheel 3-6 drives the lower roll shaft 3-2 to rotate, so that the lower roll shaft 3-2 drives the lower top roll 3-1 to synchronously rotate, the log is driven to continuously and synchronously move forwards, and in the moving forwards process, the lower top roll 3-1 also upwards extrudes the lower side surface of the log under the combined action of the upward jacking force of the jacking spring 3-4, the downward force of the upper press roll 2-3 and the gravity of the log, the photoelectric sensor at the end part of the conveying frame 5 detects the diameter information of the logs and uploads the diameter information to the control device, the control device instructs the lifting oil cylinder 2-2 and the horizontal extrusion oil cylinder 4-2 to act, when the lifting oil cylinder 2-2 drives the lifting slide seat 2-1 to descend, the distance between the end part of a chain I6-7 at the upper end of the lifting slide seat 2-1 and an upper fixed chain wheel I6-1 is lengthened, the chain I6-7 is driven by an upper fixed chain wheel I6-1 and a lower fixed chain wheel I6-3 to pull a lower movable chain wheel I6-5 to move downwards, namely, the horizontal counter-extrusion device is synchronously pulled to move downwards along the upright post 1-2, meanwhile, the distance between the end part of a chain II 6-14 at the lower end of the lifting slide seat 2-1 and a lower fixed chain wheel II 6-8 is shortened, the chain II 6-14 is driven by a lower fixed chain wheel II 6-8 and an upper fixed chain wheel II 6-11 to move upwards to move the movable chain wheel II 6-12, at the moment, the upper movable chain wheel II 6-12 loses the lifting force and moves downwards under the action of the gravity of the horizontal counter-extrusion device and the pulling force of the lower movable chain wheel I6-5, the downward moving distance of the upper movable chain wheel II 6-12 is the same as the downward moving distance of the lower movable chain wheel I6-5, the horizontal counter-extrusion device is ensured to move without obstacles, the moving distances of the horizontal counter-extrusion device are half of the downward moving distance of the lifting slide seat, the synchronous movement of the upper extrusion device 2 and the horizontal counter-extrusion devices 4 at two sides is ensured to be always contacted with the outer skin of the log, the circumferential skin of the log is jointly rolled, extruded and conveyed, and in the extrusion process, the unit roller discs 3-1-2 with different diameters on the upper compression roller and the side compression roller prick the upper surface and the two side surfaces of the log through the conical teeth 3-1-1 on the unit roller discs 3-1-2, the unit roller discs with different diameters on the lower top roller 3-1 prick the lower surface skin of the log through the conical teeth 2-3-3 on the unit roller discs, so that the hard surface skin on the circumference of the log is pricked into dense hemp holes and then enters an automatic log barking machine for stripping.

Claims

1. Log epidermis extrusion conveyor, including the carriage, its characterized in that the carriage front end is equipped with log epidermis extrusion conveyor, and it includes braced frame, goes up extrusion device, lower roller device, level to crowded device, braced frame comprises the stand of entablature, lower link and both sides, braced frame lower extreme and stand fixed connection, through link fixed connection down between adjacent stand, be equipped with on the entablature on braced frame upper portion and carry out extruded last extrusion device to log upper arc surface, the symmetry is equipped with on the stand of both sides and can be to the extruded level of log both sides arcwall face crowded device, it is equipped with down roller device down that can carry out the extrusion to log lower arc surface to go up extrusion device below correspondence, lower roller device installs at the carriage front end.

2. The device as claimed in claim 1, wherein the horizontal counter-extrusion device comprises a lateral compression roller, a horizontal extrusion cylinder, a rotating frame, a support, a rotating shaft, and a lateral roller, one side of the support is fixedly connected to the vertical column, the other side of the support is fixedly connected to the rotating shaft, one side of the rotating frame is fixedly connected to the rotating shaft through a bearing, the other side of the rotating frame is fixedly connected to the lateral roller, the lateral compression roller is fixed to the lateral roller through a bearing, one end of the horizontal extrusion cylinder is hinged to the support, and the other end of the horizontal extrusion cylinder is hinged to the rotating frame.

3. The device as claimed in claim 2, wherein the upper pressing device comprises a lifting slide, a lifting cylinder, an upper pressing roller shaft and a connecting plate, the two sides of the lifting slide are respectively connected with the vertical column in a sliding manner, the upper end of the lifting slide is fixedly connected with the end part of the telescopic rod of the lifting cylinder fixed on the upper cross beam, the two sides of the lower end of the lifting slide are respectively and symmetrically fixed with the connecting plate, the two ends of the upper pressing roller shaft are respectively and fixedly connected with the connecting plate, and the upper pressing roller is fixedly sleeved with the upper pressing roller shaft through a bearing.

4. The log skin extrusion transportation device of claim 3, wherein a synchronous linkage is provided between the upper extrusion device and the horizontal counter extrusion device.

5. The device for extruding and conveying the surface of the log as claimed in claim 4, wherein the synchronous linkage device comprises an upper fixed chain wheel I, an upper fixed wheel shaft I, a lower fixed chain wheel I, a lower fixed wheel shaft I, a lower movable chain wheel I, a lower movable wheel shaft I, a chain I, a lower fixed chain wheel II, a lower fixed wheel shaft II, an upper fixed chain wheel II, an upper fixed wheel shaft II, an upper movable chain wheel II, an upper movable wheel shaft II, a chain II, an upper connecting frame and a lower connecting frame,

the two sides of the bracket are respectively connected with the upright posts in a sliding way, the upper ends of the two sides of the bracket are respectively fixedly connected with the upper connecting frame, the lower ends of the two sides of the bracket are respectively fixedly connected with the lower connecting frame, an upper movable wheel shaft II is fixed on the upper connecting frame, an upper movable chain wheel II is fixed on the upper movable wheel shaft II through a bearing,

a lower movable wheel shaft I is fixed on the lower connecting frame, a lower movable chain wheel I is fixed on the lower movable wheel shaft I through a bearing,

the upper fixed wheel shaft I is positioned above the lifting slide seat, two ends of the upper fixed wheel shaft I are respectively fixedly connected with the upright post, two upper fixed chain wheels I are respectively fixed on the upper fixed wheel shaft I through bearings,

the lower fixed wheel shaft I and the lower fixed wheel shaft II are respectively positioned below the bracket, two ends of the lower fixed wheel shaft I are respectively fixedly connected with the upright post, the two lower fixed wheel shafts I are fixed on the lower fixed wheel shafts I through bearings,

the upper fixed wheel shaft II is positioned at the front part of the upper fixed wheel shaft I, two ends of the upper fixed wheel shaft II are respectively and fixedly connected with the upright post through bearings, two upper fixed chain wheels II are respectively and fixedly arranged on the upper fixed wheel shaft II through bearings,

two sides of a lifting oil cylinder at the upper end of the lifting slide seat are symmetrically provided with a chain I respectively, two sides of an upper compression roller at the lower end are symmetrically provided with a chain II respectively, one end of the chain I is fixedly connected with the upper end of the lifting slide seat, then extends upwards to wind the upper part of an upper fixed chain wheel I, extends downwards to wind the lower part of a lower fixed chain wheel I, extends downwards to wind the upper part of a lower movable chain wheel I, and finally the other end is fixedly connected with a stand column through a pull rod I and a nut I,

one end of the chain II is fixedly connected with the lower end of the lifting sliding seat, extends downwards to wind the lower part of the lower fixed chain wheel II and extends upwards to wind the upper part of the upper fixed chain wheel II, extends downwards to wind the lower part of the upper movable chain wheel II and extends upwards, and finally the other end of the chain II is fixed on the stand column through the pull rod II and the nut II.

6. The device as claimed in claim 1 or 2 or 3 or 4 or 5, wherein the lower top roller device comprises a lower top roller, a lower roller shaft, a lower rotating frame, a top spring, a linkage wheel, a driven wheel and a synchronous belt, the front end of the conveying frame is provided with the lower rotating frame, the rear end of the lower rotating frame is fixedly connected with the linkage shaft on the conveying frame through a bearing and a bearing seat, the front end of the lower rotating frame is fixed with the lower roller shaft, the lower end of the front part of the lower rotating frame is provided with the top spring, the linkage shaft is driven by a driving motor on the conveying frame, the other end of the linkage shaft is fixed with the linkage wheel, the linkage wheel is connected with the driven wheel fixed at one end of the lower roller shaft through the synchronous belt, the lower end of the top spring is fixedly connected with the cross frame at the lower end of the conveying frame, the upper end of the top spring is fixedly connected with the lower rotating frame, and the lower top roller is fixedly sleeved on the lower roller shaft.

7. The log skin extrusion transportation device of claim 6, wherein the lower top rollers are composed of tapered teeth, unit roller disks, the unit roller disks are arranged at intervals along the axial direction of the lower roller shaft, the diameters of the unit roller disks arranged at intervals are increased from the middle of the lower roller shaft to both ends in sequence, so that the outer sides of the unit roller disks with different diameters form an arc shape abutting against the surface of the log, and the tapered teeth are fixed on the circumferences of the unit roller disks at intervals.

8. A raw wood surface extruding and conveying device as claimed in claim 3, 4 or 5, wherein the upper and side rollers are respectively composed of a roller, unit roller discs and tapered teeth, the unit roller discs are arranged at intervals along the axial direction of the roller, and the diameters of the unit roller discs arranged at intervals are increased from the middle of the roller to the two ends.