阅读说明：本技术 输送线伸缩改向方法 (Telescopic redirection method for conveying line ) 是由 龙进军 于付龙 李帅 邱吉知 田伟 于 2021-08-11 设计创作，主要内容包括：本发明所述输送线伸缩改向方法,在输送线一侧独立设置伸缩型改向曲柄滑杆装置,通过端部轴承持续地抵触与顶压而将料箱水平翻转,最终完成输送过程中的90°改向。即将输送线伸缩改向装置设置于输送装置侧部,通过视觉识别装置检测并判断料箱沿其短边、或是长边方向进入输送装置,以确定是否将料箱进行在线90°改向操作；在伺服电机减速机的驱动下,转动曲柄以与伺服电机减速机输出轴的轴设连接点为圆心进行圆周转动,通过轴承连接组件沿纵向往复推拉所述的杆端轴承；伸出的杆端轴承持续地抵触顶压料箱,料箱在输送过程中被水平翻转而完成90°改向。(According to the telescopic direction changing method for the conveying line, the telescopic direction changing crank sliding rod device is independently arranged on one side of the conveying line, the material box is horizontally turned over through continuous abutting and jacking of the end bearing, and finally 90-degree direction changing in the conveying process is completed. The method comprises the following steps that a conveying line telescopic direction changing device is arranged on the side part of a conveying device, and a visual recognition device is used for detecting and judging whether a material box enters the conveying device along the short edge direction or the long edge direction of the material box so as to determine whether to change the direction of the material box by 90 degrees on line; under the drive of the servo motor reducer, the rotating crank rotates circumferentially by taking a shaft connecting point with an output shaft of the servo motor reducer as a circle center, and the rod end bearing is pushed and pulled longitudinally in a reciprocating manner through the bearing connecting assembly; the protruding rod end bearing continuously butts against the pressing bin, and the bin is horizontally turned over during conveying to complete 90-degree redirection.)

1. A telescopic redirection method for a conveying line is characterized by comprising the following steps: arranging a telescopic direction-changing device of the conveying line on the side part of the conveying device, detecting and judging whether the material box enters the conveying device along the short edge direction or the long edge direction of the material box through a visual identification device so as to determine whether to perform online 90-degree direction-changing operation on the material box;

under the drive of the servo motor reducer, the rotating crank rotates circumferentially by taking a shaft connecting point with an output shaft of the servo motor reducer as a circle center, and the rod end bearing is pushed and pulled longitudinally in a reciprocating manner through the bearing connecting assembly;

the extended rod end bearing continuously props against and presses the material box, and the material box is horizontally turned over in the conveying process to finish 90-degree redirection;

the method comprises the following implementation steps of,

1) extend out

Detecting and judging that the discharging box enters the conveying device along the short edge direction of the discharging box through the visual recognition device;

the PLC of the conveying device sends a signal to the servo motor reducer, the rotating crank rotates around a shaft connecting point with an output shaft of the servo motor reducer to make circumferential rotation, and the connecting rod is pushed out through the bearing connecting assembly;

when the crank is rotated to the outermost end, the rod end bearing reaches a set extending position;

when the feed box contacts the rod end bearing, the feed box is horizontally turned over integrally by taking a contact part of the feed box and the rod end bearing as a fulcrum to change the direction of the feed box by 90 degrees;

the material box is separated from the contact with the rod end bearing and is conveyed forwards along the long edge direction of the material box;

2) retraction

The visual identification device detects and judges that the discharging box enters the conveying device along the long edge direction,

the PLC of the conveying device sends a signal to the servo motor reducer, the rotating crank rotates around a shaft connecting point with an output shaft of the servo motor reducer to make circumferential rotation, and the connecting rod is pulled back through the bearing connecting assembly;

when the crank is rotated to the farthest end towards the inner side, the rod end bearing reaches a set retraction position;

the magazine is transported further forward in the direction of its long side without contact with the rod end bearing.

2. The conveying line telescopic redirection method as claimed in claim 1, wherein: the axial end of the output shaft of the servo motor reducer is limited radially through a flat key, and the axial end of the output shaft of the servo motor reducer is axially connected with a motor fixing end cover and a motor fixing countersunk head screw to be locked axially;

a rotating crank is sleeved on an output shaft of the servo motor speed reducer in a penetrating mode, and the rotating crank rotates in a whole circle by taking a shaft connecting point of the rotating crank and the output shaft of the servo motor speed reducer as a circle center.

3. The conveying line telescopic redirection method as claimed in claim 1, wherein: the connecting rod comprises two groups of connecting rods which are arranged in parallel, an end fixing rod is connected between the two groups of connecting rods of the connecting rod, and rod fixing screws are respectively adopted for axial locking at the rod ends at the two sides of the connecting rod;

the rod end bearing is sleeved on the end fixing rod in a penetrating way, and two ends of the rod end bearing are respectively locked in the axial direction by adopting shaft end check rings;

the rod end bearing comprises a plurality of deep groove ball bearings which are stacked in series, and when the connecting rod extends out and abuts against the top pressing bin, the bin continuously rotates around the end fixing rod by taking the outer ring of the deep groove ball bearing as a fulcrum.

4. The conveying line telescopic redirection method as claimed in claim 1, 2 or 3, wherein: the bearing connecting assembly comprises a rod part and joint bearings arranged at two ends of the rod part respectively;

on one side of the rotating crank, a crank shaft of the rotating crank is inserted into a bearing inner hole of the joint bearing, and a locking end cover and a countersunk head bolt are adopted for axial locking; connecting the joint bearing with the rod end fixing block through a bolt and nut assembly at one side of the rod end fixing block;

the connecting rod slides in a reciprocating manner along the axial direction of the linear bearing seat under the drive of the circumferential rotation of the rotating crank.

5. The conveying line telescopic redirection method as claimed in claim 4, wherein: the telescopic machine base is connected with a long hole on the adjusting plate through a bolt, and the mounting position of the adjusting bolt in the long hole changes the most far end extending position of the rod end bearing relative to the conveying device.

Technical Field

The invention relates to a telescopic direction change control method for realizing 90-degree turning of box type goods in a conveying process, and belongs to the field of logistics sorting.

Background

With the rapid development of the e-commerce, express delivery and warehousing industries, various automatic sorting and conveying devices have been widely adopted in the goods sorting job site to replace manual operation, thereby significantly improving the speed and efficiency of the sorting job.

On the existing conveying line for box-type goods, the goods are usually required to be conveyed according to a set direction, if the long edge of a bin is required to be parallel to the conveying line (namely the short edge of the bin is required to be perpendicular to the conveying line), scanning and information identification can be conveniently carried out on the bar codes of the outer package of the bin, and the method is suitable for the use requirements of specific equipment (such as shuttle vehicle-mounted box warehousing and the like). When the conveying direction of the material box conflicts with the requirement of equipment, the prior art generally adopts the addition of a transfer branch line to be capable of steering the material box, or adopts a jacking transfer machine or a Foley wheel conveyor and the like. The equipment scale of the box-type conveying line is correspondingly increased, the control requirement on the sorting and warehouse-entering operation loop line is correspondingly improved, and the control and the equipment operation space saving and the use cost saving are not facilitated.

The patent of the prior application of the applicant, application number CN202110429226.3, is named as a width dynamic adjustable conveying device, and comprises a frame and a visual identification device arranged vertically above the frame; the adjusting baffle plate is movably arranged on the baffle plate at least on one side of the frame and is driven and connected by the angle adjusting device; arranging a visual recognition device at the front end of the adjusting baffle along the conveying direction of the packages; the angle adjusting device is provided with a supporting rod assembly and a push rod assembly, the push rod assembly comprises an electric cylinder arranged on the baffle, an output shaft of the electric cylinder is connected to one end of a connecting rod through a connecting fork and a joint bearing, and the other end of the connecting rod is connected to the adjusting baffle through the joint bearing; a support rod assembly is connected between the frame and the adjusting baffle. The width dynamically adjustable conveying device obtains the specific external dimension and position of the current packages based on the visual identification technology, and randomly adjusts the opening and closing angle of the side baffle plate of the conveying device, so that the conveying width can be dynamically adjusted at any time, and the width dynamically adjustable conveying device is suitable for full-automatic directional conveying and tallying of packages of various specifications.

The prior art has the following disadvantages: firstly, a quick and accurate online redirection solution is lacked, the conveying and redirection of the material box are executed step by step, and extra execution equipment is excessively added, so that the field space is occupied greatly, and the use cost is high; secondly, the prior art is difficult to adapt to the application scenes of all box-type conveying lines, has poor universality and needs to configure special reversing or redirecting equipment for a specific conveying operation place; thirdly, the work efficiency of sorting and conveying of the material box is low, the reversing and direction changing accuracy is low, the improvement of the work efficiency of information identification and warehouse entry and exit is not facilitated, and the control device and the process are complex and easily cause the failure of sorting tasks.

In view of this, the present patent application is specifically proposed.

Disclosure of Invention

The invention relates to a telescopic direction changing method for a conveying line, which aims to solve the problems in the prior art, wherein a telescopic direction changing crank sliding rod device is independently arranged on one side of the conveying line, a material box is horizontally turned over by continuously abutting and jacking a bearing at the end part, and finally 90-degree direction changing in the conveying process is completed, so that an automatic adjusting method for online box turning is realized.

In order to achieve the design purpose, the telescopic direction changing device of the conveying line is arranged at the side part of the conveying device, and the visual identification device detects and judges whether the material box enters the conveying device along the short edge direction or the long edge direction of the material box so as to determine whether the material box is subjected to online 90-degree direction changing operation; under the drive of the servo motor reducer, the rotating crank rotates circumferentially by taking a shaft connecting point with an output shaft of the servo motor reducer as a circle center, and the rod end bearing is pushed and pulled longitudinally in a reciprocating manner through the bearing connecting assembly; the extended rod end bearing continuously props against and presses the material box, and the material box is horizontally turned over in the conveying process to finish 90-degree redirection;

the method comprises the following implementation steps of,

1) extend out

Detecting and judging that the discharging box enters the conveying device along the short edge direction of the discharging box through the visual recognition device;

the PLC of the conveying device sends a signal to the servo motor reducer, the rotating crank rotates around a shaft connecting point with an output shaft of the servo motor reducer to make circumferential rotation, and the connecting rod is pushed out through the bearing connecting assembly;

when the crank is rotated to the outermost end, the rod end bearing reaches a set extending position;

when the feed box contacts the rod end bearing, the feed box is horizontally turned over integrally by taking a contact part of the feed box and the rod end bearing as a fulcrum to change the direction of the feed box by 90 degrees;

the material box is separated from the contact with the rod end bearing and is conveyed forwards along the long edge direction of the material box;

2) retraction

The visual identification device detects and judges that the discharging box enters the conveying device along the long edge direction,

the PLC of the conveying device sends a signal to the servo motor reducer, the rotating crank rotates around a shaft connecting point with an output shaft of the servo motor reducer to make circumferential rotation, and the connecting rod is pulled back through the bearing connecting assembly;

when the crank is rotated to the farthest end towards the inner side, the rod end bearing reaches a set retraction position;

the magazine is transported further forward in the direction of its long side without contact with the rod end bearing.

Furthermore, the axial end of the output shaft of the servo motor reducer is limited radially through a flat key, and the axial end of the output shaft of the servo motor reducer is axially connected with a motor fixing end cover and a motor fixing countersunk head screw to be axially locked; a rotating crank is sleeved on an output shaft of the servo motor speed reducer in a penetrating mode, and the rotating crank rotates in a whole circle by taking a shaft connecting point of the rotating crank and the output shaft of the servo motor speed reducer as a circle center.

Furthermore, the connecting rod comprises two groups of connecting rods which are arranged in parallel, an end fixing rod is connected between the two groups of connecting rods of the connecting rod, and rod fixing screws are respectively adopted at the two side rod ends of the connecting rod for axial locking; the rod end bearing is sleeved on the end fixing rod in a penetrating way, and two ends of the rod end bearing are respectively locked in the axial direction by adopting shaft end check rings; the rod end bearing comprises a plurality of deep groove ball bearings which are stacked in series, and when the connecting rod extends out and abuts against the top pressing bin, the bin continuously rotates around the end fixing rod by taking the outer ring of the deep groove ball bearing as a fulcrum.

Furthermore, the bearing connecting assembly comprises a rod part and joint bearings arranged at two ends of the rod part respectively; on one side of the rotating crank, a crank shaft of the rotating crank is inserted into a bearing inner hole of the joint bearing, and a locking end cover and a countersunk head bolt are adopted for axial locking; connecting the joint bearing with the rod end fixing block through a bolt and nut assembly at one side of the rod end fixing block; the connecting rod slides in a reciprocating manner along the axial direction of the linear bearing seat under the drive of the circumferential rotation of the rotating crank.

Furthermore, the telescopic machine base is connected to a long hole in the machine body connecting adjusting plate through a bolt, and the installation position of the adjusting bolt in the long hole changes the most far end extending position of the rod end bearing relative to the conveying device.

In summary, the telescopic direction changing device and method for the transmission line have the following advantages:

1. the sorting and flow-adjusting operation site is suitable for sorting and flow-adjusting operation sites of box-type goods, can realize that the material box is timely and accurately adjusted in direction change while being conveyed, and can meet the operation requirements of full automation and high efficiency.

2. The application provides a concertina type changes to crank slide bar device, and end bearing continuously steadily contradicts and the roof pressure workbin, can accurately accomplish 90 and change to, can adapt to all box transfer chain, does not have the improvement requirement to the transfer chain structure.

3. The application provides flexible device that changes to, the structure is comparatively simple, use cost is lower, occupation space is less, the commonality is strong, is favorable to improving letter sorting operating efficiency and arrival rate.

4. The flexible device that changes to that this application provided sets up with the transfer chain relatively independently, dismantles to overhaul convenient, be favorable to improving transport and letter sorting efficiency.

5. The method and the device realize a flexible, quick and accurate online direction change solution, are favorable for improving the information identification and warehouse entry and exit operation efficiency, and are simple in control device and process.

Drawings

The invention will now be further described with reference to the following figures.

FIGS. 1-1 and 1-2 are schematic structural views of the telescopic direction-changing device for a conveying line according to the application from different perspectives;

FIG. 2 is a schematic structural view of a motor driven crank assembly;

fig. 3 is a schematic structural view of a telescopic pulley assembly;

FIGS. 4 and 5 are schematic diagrams comparing the extended and retracted states, respectively;

FIG. 6 is a schematic view of the operation principle of the telescopic direction changing device applied to the roller conveyor line;

figures 7 and 8 are schematic diagrams comparing the magazine transport process in extended and retracted states.

Detailed Description

Example 1, as shown in fig. 1 to 8, the telescopic conveyor line direction changing device 100 for implementing the telescopic conveyor line direction changing method according to the present invention is applied to implement horizontal turning of a bin 400 during conveying to implement an online 90 ° direction changing operation.

The conveying line telescopic direction changing device 100 is integrally installed and connected to a side portion of a conveying device, in this embodiment, the conveying device is an inclined roller edge leaning machine 200, and may be other conveying devices such as a belt conveyor.

As shown in fig. 1, the telescopic redirecting device 100 for the conveyor line comprises a machine body connecting and adjusting plate 4 which is installed and connected to the side of the inclined roller edge trimmer 200, and a driving traction assembly 1 and a telescopic sliding assembly 2 which are respectively connected to the machine body connecting and adjusting plate 4, wherein a bearing connecting assembly 3 is connected between the driving traction assembly 1 and the telescopic sliding assembly 2.

As shown in fig. 1 and fig. 2, the driving traction assembly 1 includes a servo motor reducer 11 and a telescopic machine base 12, an output shaft of the servo motor reducer 11 penetrates through the telescopic machine base 12 and is connected with one end of a rotating crank 13 at a shaft end, and the other end of the rotating crank 13 is connected with the bearing connecting assembly 3;

the further detailed design is that a servo motor reducer 11 is fixed on one side of a telescopic machine base 12 through a motor fixing bolt 17, and an output shaft of the servo motor reducer 11 is respectively sleeved with a motor shaft spacer bush 14 and a rotating crank 13 in a penetrating manner; after an output shaft of the servo motor reducer 11 passes through a hole of the telescopic machine base 12, the rotating crank 13 is positioned at the other side of the telescopic machine base 12;

the output shaft of the servo motor reducer 11 is limited at the shaft end in the radial direction through a flat key 16 to limit the radial play, and the shaft end is axially connected with a motor fixing end cover 15 and a motor fixing countersunk head screw 18 to perform axial locking.

Under the drive of the servo motor reducer 11, the rotating crank 13 can rotate in a whole circle by taking a shaft connecting point with an output shaft of the servo motor reducer 11 as a circle center.

As shown in fig. 1 and 3, the telescopic sliding assembly 2 includes a rod end fixing block 21 and a rod end bearing 24, the rod end fixing block 21 is connected to the bearing connection assembly 3, that is, two ends of the bearing connection assembly 3 are respectively connected to the rod end fixing block 21 and the rotating crank 13, and a connection rod 23 is connected between the rod end fixing block 21 and the rod end bearing 24;

the further detailed design is that the connecting rods 23 are two groups of connecting rods which are arranged in parallel, and the connecting rods 23 are penetratingly arranged on the base 12 of the telescopic machine through linear bearing seats 22 and bearing seat fixing screws 28; an end fixing rod 25 is connected between the two groups of connecting rods of the connecting rod 23, and rod end fixing screws 27 are respectively adopted at the rod ends at the two sides of the connecting rod 23 to axially lock the rod end fixing block 21 and the end fixing rod 25; the rod end bearing 24 is sleeved on the end fixing rod 25, and two ends of the rod end bearing 24 are respectively axially locked by shaft end retaining rings 26;

the rod end bearing 24 can be a plurality of deep groove ball bearings stacked in series, when the connecting rod 23 extends out and abuts against and presses the material box 400, the material box 400 continuously rotates around the end fixing rod 25 by taking the outer ring of the deep groove ball bearing as a fulcrum, so that the material box 400 is horizontally overturned in the conveying process, and the 90-degree redirection is finally completed.

As shown in fig. 1 to 5, the bearing connecting assembly 3 includes a rod portion and joint bearings 31 respectively disposed at two ends of the rod portion; on one side of the rotating crank 13, a crank shaft of the rotating crank 13 is inserted into a bearing inner hole of the joint bearing 31, and the locking end cover 5 and the countersunk head bolt 6 are adopted for axial locking; on one side of the rod end fixing block 21, the joint bearing 31 is connected with the rod end fixing block 21 through a bolt and nut assembly 7; since the inner wall of the knuckle bearing 31 and the outer sleeve can slide relatively, the rod part of the bearing connecting assembly 3 can rotate radially around the crank shaft of the rotating crank 13 and is fixed and limited in the axial direction; likewise, the spherical plain bearing 31 is axially fixed and at the same time can rotate radially about the bolt-nut assembly 7.

Under the drive of the circumferential rotation of the rotating crank 13, the bearing connecting assembly 3 transmits longitudinal traction push-pull force to the connecting rod 23 and the rod end bearing 24, and the connecting rod 23 slides in a reciprocating manner along the axial direction of the linear bearing seat 22, so that the telescopic control of the whole device is finally realized.

According to the technical scheme, the conveying line telescopic direction changing device 100 is based on the transmission principle that a crank pulls a push-pull sliding rod, a motor drives the crank to rotate so as to enable the sliding rod to reciprocate, a ball bearing is arranged at the end part of the sliding rod, when a material box is touched, the material box can be turned over along the bearing surface, and finally the material box is horizontally rotated for 90 degrees to realize direction changing.

The telescopic direction-changing device 100 for the conveying line comprises two working states of extension and retraction according to the conveying state and the direction-changing adjustment requirement of the material box 400.

Further, the telescopic machine base 12 is connected to the elongated hole 41 of the machine body connecting and adjusting plate 4 through a bolt, and the installation position of the telescopic machine base 12 can be adjusted relative to the machine body connecting and adjusting plate 4 through adjusting the position of the bolt in the elongated hole 41, so that the telescopic sliding assembly 2 can be adjusted relative to the inclined roller edge machine 200, and finally the non-working original point position (i.e., the initial position before extending) of the rod end bearing 24 relative to the conveying line is changed.

Further, a shield 8 is packaged outside the extension machine base 12 through a screw assembly 9, and the shield 8 plays a role in protecting the internal driving traction assembly 1, the extension sliding assembly 2 and the bearing connecting assembly 3.

By applying the telescopic direction changing device 100 for the conveying line, the following telescopic direction changing method for the conveying line is realized:

as shown in fig. 6, the conveyor line telescopic direction changing device 100 is arranged at the side part of the inclined roller edge leaning machine 200,

detecting and judging whether the material box 400 enters the inclined roller edge-approaching machine 200 along the short edge or the long edge direction of the material box through a visual identification device so as to determine whether to perform online 90-degree redirection operation on the material box;

under the drive of the servo motor reducer 11, the rotating crank 13 rotates circumferentially by taking a shaft connecting point with an output shaft of the servo motor reducer 11 as a circle center, and the push-pull rod end bearing 24 reciprocates longitudinally through the bearing connecting assembly 3;

the protruding rod end bearing 24 continuously abuts against the press bin 400, and the bin 400 is horizontally turned during the conveying process to complete 90 ° redirection;

the method comprises the following implementation steps:

1) extend out

As shown in fig. 7, the bin 400 is progressively fed on the diagonal roller edger 200, sliding forward, approaching and eventually following the sides of the forfei wheel rib 300;

detecting and judging that the discharging box 400 enters the inclined roller edge-approaching machine 200 along the short edge direction thereof through a visual recognition device, and redirecting the discharging box 400 for 90 degrees;

the PLC of the inclined roller side abutting machine 200 sends a signal to the servo motor reducer 11 of the conveying line telescopic redirection device 100;

under the drive of the servo motor reducer 11, the rotating crank 13 rotates around a connecting point arranged on a shaft of an output shaft of the servo motor reducer 11 for circumference, and the connecting rod 23 is pulled and pushed out through the bearing connecting assembly 3;

when the crank 13 is rotated to the farthest end, the rod end bearing 24 reaches the set extending position;

when the work bin 400 contacts the rod end bearing 24, the rod end bearing 24 blocks the movement of the part in contact with the work bin 400, the other part of the work bin 400 is driven by the roller to be conveyed forwards continuously, and the work bin 400 is horizontally overturned integrally by taking the contact part with the rod end bearing 24 as a fulcrum until the work bin 400 is separated from the contact with the rod end bearing 24;

the disengaged bin 400 is acted by the diagonal rollers to gradually approach and finally slide forward along the sides of the forfei wheel ribs 300, and the bin 400 is turned horizontally and redirected by 90 degrees;

the bin 400 is conveyed forward along its long side direction;

2) retraction

As shown in fig. 8, the bin 400 is progressively fed on the diagonal roller edger 200, sliding forward, approaching and eventually following the sides of the forfei wheel rib 300;

the vision recognition device detects and judges that the discharge box 400 enters the inclined roller edge-approaching machine 200 along the long edge direction, so that the direction change of the discharge box 400 is not required to be carried out for 90 degrees;

the PLC of the inclined roller side abutting machine 200 sends a signal to the servo motor reducer 11 of the conveying line telescopic redirection device 100;

under the drive of the servo motor reducer 11, the rotating crank 13 rotates around a connecting point arranged on a shaft of an output shaft of the servo motor reducer 11 for circumference, and the pull-back connecting rod 23 is pulled by the bearing connecting assembly 3;

when the rotating crank 13 rotates inwards to the farthest end, the rod end bearing 24 reaches the set retraction position;

the magazine 400 slides along the side of the feed wheel rim 300, and the magazine 400 continues to be transported forward in the longitudinal direction thereof without coming into contact with the rod end bearing 24.

Furthermore, the axial end of the output shaft of the servo motor reducer 11 is limited radially through a flat key 16, and the axial end of the output shaft of the servo motor reducer 11 is axially connected with a motor fixing end cover 15 and a motor fixing countersunk head screw 18 for axial locking;

the output shaft of the servo motor reducer 11 is sleeved with a rotating crank 13, and the rotating crank 13 rotates in a whole circle by taking a shaft connecting point with the output shaft of the servo motor reducer 11 as a circle center.

Further, the connecting rod 23 comprises two groups of connecting rods arranged in parallel, an end fixing rod 25 is connected between the two groups of connecting rods of the connecting rod 23, and rod fixing screws 27 are respectively adopted at the rod ends at the two sides of the connecting rod 23 to axially lock the rod end fixing block 21 and the end fixing rod 25; the rod end bearing 24 is sleeved on the end fixing rod 25, and two ends of the rod end bearing 24 are respectively axially locked by shaft end retaining rings 26;

the rod end bearing 24 comprises a plurality of deep groove ball bearings stacked in series, and when the connecting rod 23 extends out and abuts against and presses the material box 400, the material box 400 continuously rotates around the end fixing rod 25 by taking the outer ring of the deep groove ball bearing as a fulcrum.

Further, the bearing connecting assembly 3 includes a rod portion and joint bearings 31 respectively disposed at two ends of the rod portion; on one side of the rotating crank 13, a crank shaft of the rotating crank 13 is inserted into a bearing inner hole of the joint bearing 31, and the locking end cover 5 and the countersunk head bolt 6 are adopted for axial locking; connecting the joint bearing 31 and the rod end fixing block 21 through a bolt and nut assembly 7 at one side of the rod end fixing block 21;

the connecting rod 23 slides back and forth along the axial direction of the linear bearing seat 22 by the circumferential rotation of the rotary crank 13.

Further, the telescopic machine base 12 is bolted to the elongated hole 41 of the machine body connecting adjustment plate 4, and the installation position of the adjustment bolt in the elongated hole 41 can finally adjust the extending position of the rod end bearing 24 relative to the farthest end of the tilting roller edger 200.

In summary, the embodiments presented in connection with the figures are only preferred. Those skilled in the art can derive other alternative structures according to the design concept of the present invention, and the alternative structures should also fall within the scope of the solution of the present invention.