CN211225718U

CN211225718U - Cloth inspection machine with auxiliary tensioning device

Info

Publication number: CN211225718U
Application number: CN201922047646.6U
Authority: CN
Inventors: 蒋小其; 汪宝君
Original assignee: Hangzhou Xiaoshan Dongda Textile Co ltd
Current assignee: Hangzhou Xiaoshan Dongda Textile Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-08-11
Anticipated expiration: 2029-11-23

Abstract

The utility model discloses a cloth inspecting machine with an auxiliary tensioning device, which comprises a checking platform, a cloth releasing roller, a cloth collecting roller, a first motor for driving the cloth releasing roller to rotate and a second motor for driving the cloth collecting roller to rotate, wherein the cloth releasing roller and the cloth collecting roller are respectively positioned at the feed end and the discharge end, a frame is fixedly arranged on the checking platform, the frame is provided with the auxiliary tensioning device for facilitating the local tensioning of cloth, the auxiliary tensioning device comprises a fixed block, a driving cylinder arranged on the frame and used for driving the fixed block to move up and down and two roller sets arranged on the fixed block and used for tensioning the cloth, a cavity is arranged in the fixed block, a first slide block is connected in the cavity in a sliding way along the length direction of the cavity, one end of the first slide block is fixedly connected with a reset spring, one end of the reset spring, which is far away from the first slide block, one roller, the roller set comprises a fixed rod and compression rollers symmetrically arranged at two ends of the fixed rod.

Description

Cloth inspection machine with auxiliary tensioning device

Technical Field

The utility model relates to a cloth inspection machine, concretely relates to cloth inspection machine with supplementary overspeed device tensioner.

Background

The cloth inspecting machine is a set of necessary special equipment for detecting extra-large-breadth, double-breadth and single-breadth cloth such as cotton, wool, hemp, silk, chemical fiber and the like before production in the clothing industry. The operation method of the cloth inspecting machine comprises the following steps: the hardware environment of cloth inspection is provided, the fabric is continuously and sectionally unfolded, sufficient light sources are provided, an operator observes the fabric by eyesight to find out defects and color differences, and the cloth inspection machine automatically finishes length recording and package finishing work. The cloth inspecting machine with good performance is provided with an electronic defect detecting device, and is used for assisting cloth inspecting operation and printing output through computer statistical analysis.

Chinese patent publication No. CN205399035U discloses a cloth inspecting machine, which comprises a cloth inspecting mechanism and a code counting mechanism, wherein the front end of the cloth inspecting mechanism is provided with a conveying mechanism, the conveying mechanism comprises a mounting groove, a rotating shaft is arranged in the mounting groove, and two ends of the mounting groove are provided with transverse adjusting mechanisms; the cloth inspecting mechanism is provided with an inclined table top, and a mirror surface is arranged on the inclined table top; the code counting mechanism comprises a workbench, a lifting winding drum is arranged on the workbench, a second supporting rod is arranged at the front end of the workbench, and the code counting wheel is tangent to the second supporting rod. The during operation will treat the reel of inspection and install in the pivot, adjust fixedly through horizontal adjustment mechanism, will distribute and walk around second branch etc. and the winding is on the reel at last, starts pivot motor and reel rotating electrical machines, lets equipment normal operating, inspects by the manual work, begins to remember the sign indicating number by the meter sign indicating number wheel. When the defects are found, the motor can be controlled to rotate reversely by the controller or stopped so as to be convenient for repair weaving.

When using above-mentioned equipment to inspect the cloth, if there is the flaw on finding the cloth, need stop respectively to install at pivot and with the motor of reel tip, because the inertia of dead time difference and pivot and reel is great, pivot and reel can continue the transmission, lead to the cloth not hard up, inconvenient cloth to having the flaw improves.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a cloth inspection machine with supplementary overspeed device tensioner through putting the auxiliary tensioner of installation between cloth roller and the receipts cloth roller, reaches the purpose with the local tensioning of the cloth in the data send process, realizes the target of convenient cloth inspection.

In order to achieve the above purpose, the utility model provides a following technical scheme: a cloth inspecting machine with an auxiliary tensioning device comprises a checking platform, a cloth releasing roller, a cloth collecting roller, a first motor and a second motor, wherein the first motor is used for driving the cloth releasing roller to rotate, the second motor is used for driving the cloth collecting roller to rotate, the cloth releasing roller and the cloth collecting roller are respectively positioned at a feeding end and a discharging end, a rack is fixedly installed on the checking platform, the auxiliary tensioning device convenient for local tensioning of cloth is installed on the rack, the auxiliary tensioning device comprises a fixed block, a driving cylinder and two roller sets, the driving cylinder is installed on the rack and used for driving the fixed block to move up and down, the two roller sets are installed on the fixed block and used for tensioning the cloth, a cavity is formed in the fixed block, a first sliding block is connected in the cavity in a sliding mode along the length direction of the cavity, a reset spring is fixedly connected to one end of the first sliding block, and the other roller set is fixed on the first sliding block and comprises a fixed rod and pressing rollers symmetrically arranged at two ends of the fixed rod.

By adopting the technical scheme, one end of the cloth penetrates through the inspection platform and then is fixed on the cloth collecting roller, the first motor and the second motor are sequentially started, the conveying speed is slowly adjusted until the cloth is conveniently inspected, and the cloth is basically in a tight state. And after stains are found on the cloth, immediately closing the first motor and the second motor, starting the driving cylinder, driving the fixing block to move downwards by the piston at the end part, and closing the driving cylinder after the lower end of the press roller is contacted with the surface of the cloth. The two sets of roller sets compress tightly the cloth at intervals, and the purpose of conveniently inspecting the cloth is achieved.

The utility model discloses a further set up to: the frame is including fixing the curb plate in the checkout stand both sides and installing the roof in both sides curb plate upper end, one side wear to be equipped with the lead screw on the curb plate, the lead screw is worn to establish the face parallel of direction and checkout stand butt cloth, drive lead screw pivoted third motor is installed to lead screw one end, the third motor is arranged in on the curb plate, lead screw threaded connection is in the roof, the roof both sides are sliding connection respectively in both sides curb plate, driving cylinder fixed mounting is on the roof.

Through adopting above-mentioned technical scheme, start the third motor, the lead screw rotates and drives the roof and slides along its width direction, and from this, the roof position is adjustable. After the first motor and the second motor are turned off, the cloth still continues to be driven due to inertia, the position of the cloth with the stains moves, and the force application position of the auxiliary tensioning device can be controlled by moving the position of the top plate before the auxiliary tensioning device is started, so that convenience is provided for removing the stains.

The utility model discloses a further set up to: the fixed block is provided with an embedded groove, a U-shaped rod for limiting the first sliding block is rotatably connected in the embedded groove, one end of the opening end of the U-shaped rod is rotatably connected to the fixed block, and the other end of the U-shaped rod is embedded into the embedded groove.

Through adopting above-mentioned technical scheme, after the spot on the cloth was clear away, slide first slider to reset spring and be in compression state, two sets of roller set intervals reduce. At the moment, the U-shaped rod is rotated until the U-shaped rod is embedded into the caulking groove, and when the force application to the first sliding block is stopped, the first sliding block is limited by the U-shaped rod. When new spot needs to be cleared away, the auxiliary tensioning device is moved to a required position, the U-shaped rod is rotated, the first sliding block loses the limiting position, and due to the resilience force of the return spring, the first sliding block tends to move away from one side of the return spring, so that the distance between the two sets of roller sets is increased. When the two sets of roller sets slide relatively, the lower extreme butt cloth of compression roller just slides on the cloth, expandes the tensioning with the cloth, makes things convenient for subsequent inspection.

The utility model discloses a further set up to: the compression roller is rotatably connected to the fixing rod.

Through adopting above-mentioned technical scheme, two sets of roller sets can be the relative slip, and when the roller set that connects in first slider slides on the cloth, each compression roller was at cloth surface friction. The compression roller is rotationally connected to the fixed rod, sliding friction is converted into rolling friction, and therefore abrasion of the compression roller to cloth is reduced in the tensioning process.

The utility model discloses a further set up to: offer the groove of dodging of intercommunication both sides lateral wall along vertical direction on the checkout stand, dodge the inslot and wear to be equipped with the tensioning roller along its length direction, vertical direction sliding connection in both sides curb plate is followed respectively at the tensioning roller both ends.

By adopting the technical scheme, after the first motor and the second motor are closed, the cloth is still continuously driven due to inertia, so that the cloth is in a loose state, and the lower end of the tensioning roller is abutted to the cloth to tension the cloth. Due to the installation of the tensioning roller, the cloth can be tensioned even if the cloth is in a loose state, so that the cloth is prevented from dropping and being polluted, and the economic benefit is improved.

The utility model discloses a further set up to: and a round angle is formed in the notch of the avoiding groove.

Through adopting above-mentioned technical scheme, the tensioning roller slides along vertical direction in dodging the inslot, and the cloth is dodging the gliding in-process in the inslot, with dodge between the groove notch friction. The notch of the avoiding groove is set to be a round angle, so that the friction of the cloth and the avoiding groove is reduced, and the excessive abrasion of the cloth is avoided.

The utility model discloses a further set up to: and the inspection bench is fixedly provided with an illumination layer on one surface thereof abutting against the cloth.

Through adopting above-mentioned technical scheme, in the inspection process, the user has the spot through the cloth of visual observation inspection bench. Install the illumination layer at checkout stand butt cloth one side, can more make things convenient for more obviously see the spot on the cloth, reach the effect of quick inspection.

The utility model discloses a further set up to: put cloth roller and be close to checkout stand one side and receive cloth roller and be close to checkout stand one side and all install crease-resistance roller set, crease-resistance roller set includes the accepting roll of two outer wall mutual butts, each the accepting roll all rotates and connects in the curb plate inner wall.

By adopting the technical scheme, before cloth inspection, cloth needs to pass through the space between the two receiving rollers, and the width direction of the cloth is ensured to be in a flat state. The feed end and the discharge end are respectively provided with a group of crease-resistant roller sets, so that the cloth is transversely tensioned at the feed end and the discharge end, the crease phenomenon is reduced, and subsequent cloth inspection is facilitated.

The utility model has the advantages of it is following:

1. the auxiliary tensioning device is arranged between the cloth releasing roller and the cloth collecting roller, so that the aim of locally tensioning the cloth in the conveying process is fulfilled, and the aim of conveniently inspecting the cloth is fulfilled.

2. The avoiding groove and the tensioning roller are arranged, so that the cloth can be tensioned by the tensioning roller even if the cloth is in a loose state, and the cloth is prevented from falling and being dirtied.

Drawings

FIG. 1 is a first isometric view of the present embodiment;

FIG. 2 is a front view of the present embodiment;

FIG. 3 is a partial schematic view of the structure;

FIG. 4 is an enlarged view of FIG. 1 at A;

FIG. 5 is a partial cross-sectional view of the fixing block according to the present embodiment;

fig. 6 is a partial sectional view of the present embodiment to show the structure near the tension block.

Reference numerals: 10. an inspection bench; 11. a cloth releasing roller; 12. a cloth collecting roller; 13. a first motor; 14. a second motor; 20. an illumination layer; 21. a frame; 211. a side plate; 212. a top plate; 30. a first groove; 31. a screw rod; 32. a third motor; 33. a slide bar; 34. a drive block; 40. an auxiliary tensioning device; 41. a fixed block; 411. caulking grooves; 412. a U-shaped rod; 413. a force application block; 42. a drive cylinder; 43. fixing the rod; 44. a compression roller; 45. a cavity; 46. a first slider; 47. a return spring; 50. an avoidance groove; 51. a second groove; 52. a third groove; 53. a tension roller; 60. a tensioning block; 61. tensioning the spring; 70. and a carrying roller.

Detailed Description

A cloth inspecting machine with an auxiliary tensioning device is shown in figures 1 and 2 and comprises a checking platform 10, a cloth releasing roller 11, a first motor 13 for driving the cloth releasing roller 11 to rotate, a cloth collecting roller 12 and a second motor 14 for driving the cloth collecting roller 12 to rotate. Put cloth roller 11 and receipts cloth roller 12 and be located the feed end and the discharge end of checkout stand 10 both sides respectively, checkout stand 10 is close to receipts cloth roller 12 one side and is equipped with the inclined plane of the perching of being convenient for, and fixed mounting has illumination layer 20 on the inclined plane, and illumination layer 20 directly butts the cloth. The inspection bench 10 is fixedly provided with a machine frame 21, and the machine frame 21 comprises side plates 211 fixed at both sides of the inspection bench 10 and top plates 212 arranged at the upper ends of the side plates 211 at both sides. Two ends of the cloth releasing roller 11 and the cloth collecting roller 12 are respectively and rotatably connected to the side plates 211 at two sides, and an auxiliary tensioning device 40 which is convenient for local tensioning of cloth is installed on the top plate 212.

Put cloth roller 11 and be close to checkout stand 10 one side and receive cloth roller 12 and be close to checkout stand 10 one side and all install the crease-resistance roller set, a set of crease-resistance roller set is cliied the cloth, and the crease-resistance roller set includes the accepting roller 70 of two outer wall mutual butts, and each accepting roller 70 all rotates to be connected in curb plate 211 inner wall.

When inspecting cloth, the cloth releasing roller 11 wound with the cloth to be inspected and the empty cloth collecting roller 12 are installed, the cloth is pulled from the inspection bench 10 to the other group of crease-resistant roller group after passing through the space between the two receiving rollers 70, and finally the crease-resistant roller group is fixed on the cloth collecting roller 12. At this time, the cloth is smoothly attached to the surface of the inclined plane of the inspection station 10. The first motor 13 and the second motor 14 are sequentially started, and the cloth releasing roller 11 and the cloth collecting roller 12 rotate to drive cloth to be transmitted. The user observes on the side of the illumination layer 20 whether the cloth has a problem. When stains or sundries are found on the cloth, the first motor 13 and the second motor 14 are stopped, the cloth is continuously driven due to inertia, and the cloth is loosened. The auxiliary tensioning device 40 tensions the cloth locally, so that stains on the cloth can be conveniently and manually removed. After cleaning, the auxiliary tensioning device 40 is removed, the first motor 13 and the second motor 14 are continuously started, the cloth is continuously transmitted, and the inspection process is continuously carried out.

Specifically, as shown in fig. 1 and 3, the two side plates 211 are both provided with first grooves 30, and the directions of the first grooves 30 are parallel to the surface of the inspection table 10 abutting against the cloth. A screw rod 31 penetrates through the first groove 30, a third motor 32 for driving the screw rod 31 to rotate is installed at one end of the screw rod 31, a rotating shaft at the end part of the third motor 32 is fixedly connected to the screw rod 31, and the third motor 32 is arranged on the side plate 211. A sliding rod 33 penetrates through the other first groove 30 along the length direction thereof, the lower ends of the two sides of the top plate 212 are fixedly connected with a driving block 34, the screw rod 31 is in threaded connection with the driving block 34, the two sides of the top plate 212 are respectively in sliding connection with the upper end surface of the side plate 211, the sliding rod 33 penetrates through the other driving block 34, and the sliding rod 33 is in sliding connection with the driving block 34. The auxiliary tensioner 40 is mounted on the top plate 212.

As shown in fig. 1 and 5, the auxiliary tensioning device 40 includes a fixed block 41, a driving cylinder 42 installed on the frame 21 for driving the fixed block 41 up and down, and two roller sets installed on the fixed block 41 for tensioning the cloth. A cavity 45 is formed in the fixed block 41, a first sliding block 46 is connected in the cavity 45 in a sliding mode along the length direction of the cavity, and one end of the first sliding block 46 is fixedly connected with a return spring 47. One end of the return spring 47, which is far away from the first sliding block 46, is fixed on the inner wall of the cavity 45, one roller set is installed at one end of the fixed block 41, and the other roller set is fixed on the first sliding block 46. The roller group comprises a fixed rod 43 and a press roller 44 which is symmetrically and rotatably connected with two ends of the fixed rod 43, the fixed rod 43 is in a shape of a Chinese character 'ji' which is opened towards the lighting layer 20, and the lower end of the press roller 44 is abutted against the surface of the cloth. The drive cylinder 42 is an air cylinder.

As shown in fig. 4, a T-shaped slot 411 is formed on the upper end surface of the fixing block 41, a U-shaped rod 412 for limiting the first slider 46 is rotatably connected to the slot 411, one end of the open end of the U-shaped rod 412 is rotatably connected to the inner wall of the slot 411, and the other end of the U-shaped rod 412 is inserted into the slot 411. The upper end of the U-shaped rod 412, which is far away from the opening end thereof, is fixedly connected with a force application block 413 which facilitates force application, and the upper end of the force application block 413 penetrates through the upper end of the embedding slot 411. When the return spring 47 is in a compressed state, the inner wall of the open end of the U-shaped rod 412 abuts against the side of the first slider 46 away from the return spring 47.

The driving cylinder 42 is started, the piston at the end of the cylinder drives the fixed block 41 to descend, and when the lower end of the press roller 44 is abutted against the cloth, the cylinder is closed. The force application block 413 is held by a hand, the U-shaped rod 412 is rotated, the first sliding block 46 loses the limiting position, and the resilience force of the return spring 47 drives the first sliding block 46 to slide towards the other end of the cavity 45. At this moment, the interval between two compression rollers 44 of adjacent roller set increases, and when fixed connection supports the cloth tightly in the roller set of first slider 46, this roller set slides to keeping away from another group roller set one side, with the cloth tensioning between two sets of roller sets, the person of facilitating the use handles.

After the stain is treated, the U-shaped bar 412 is rotated to be separated from the caulking groove 411. The roller sets secured to the first slider 46 are forced to one side of the other roller set and the first slider 46 is slid to the other side of the cavity 45 and the spacing between the two roller sets is reduced until abutting. At this time, the U-shaped lever 412 is rotated, and the end of the U-shaped lever 412 is fitted into the fitting groove 411, thereby fixing the position of the first slider 46.

Specifically, as shown in fig. 2 and 6, the inspection platform 10 is provided with an avoiding groove 50 communicating with the side walls on both sides in the vertical direction, and both sides of a notch at the upper end of the avoiding groove 50 are provided with round corners. The two side walls of the two sides close to one side of the inspection platform 10 are provided with second grooves 51 along the vertical direction, the two second grooves 51 are embedded with tensioning blocks 60, and the tensioning blocks 60 are embedded in the second grooves 51 and are connected to the second grooves 51 in a sliding manner along the vertical direction. The side walls of the second groove 51 are both horizontally provided with a third groove 52, and both sides of the tensioning block 60 are embedded in the third groove 52 and slidably connected to the third groove 52. The tensioning roller 53 penetrates between the two tensioning blocks 60, and two ends of the tensioning roller 53 are respectively and rotatably connected to the tensioning blocks 60 on two sides. A tension spring 61 for applying tension to the cloth is installed in the second groove 51, one end of the tension spring 61 is fixedly connected to the inner wall of the second groove 51, and the other end is fixedly connected to the upper end of the tension block 60.

In the cloth inspecting state, the lower end of the tension roller 53 abuts against the cloth to tension the cloth. After the first motor 13 and the second motor 14 are turned off, the cloth still continues to be driven due to inertia, at this time, the cloth is not abutted by the tensioning roller 53 any more and is in a loose state, the tensioning spring 61 is reset, the tensioning block 60 is pressed downwards, the tensioning block 60 slides in the second groove 51, the cloth is pulled towards the avoiding groove 50, and the cloth is prevented from falling onto the ground.

The working principle of the embodiment is as follows: when inspecting cloth, the cloth releasing roller 11 wound with the cloth to be inspected and the empty cloth collecting roller 12 are installed, the cloth is pulled from the inspection bench 10 to the other group of crease-resistant roller group after passing through the space between the two receiving rollers 70, and finally the crease-resistant roller group is fixed on the cloth collecting roller 12. At this time, the cloth is smoothly attached to the surface of the inclined plane of the inspection station 10. The first motor 13 and the second motor 14 are sequentially started, and the cloth releasing roller 11 and the cloth collecting roller 12 rotate to drive cloth to be transmitted. The user observes on the side of the illumination layer 20 whether the cloth has a problem. When stains or sundries are found on the cloth, the first motor 13 and the second motor 14 are stopped, the cloth is continuously driven due to inertia, and the cloth is loosened.

After the stain is treated, the U-shaped bar 412 is rotated to be separated from the caulking groove 411. The roller sets secured to the first slider 46 are forced to one side of the other roller set and the first slider 46 is slid to the other side of the cavity 45 and the spacing between the two roller sets is reduced until abutting. At this time, the U-shaped lever 412 is rotated, and the end of the U-shaped lever 412 is fitted into the fitting groove 411, thereby fixing the position of the first slider 46. After cleaning, the cylinder is started, the piston drives the fixing block 41 to ascend to the initial position, the first motor 13 and the second motor 14 are continuously started, the cloth is continuously transmitted, and the cloth is continuously inspected.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a cloth inspection machine with supplementary overspeed device tensioner, includes checkout stand (10), puts cloth roller (11), receipts cloth roller (12), is used for the drive to put cloth roller (11) pivoted first motor (13) and be used for driving receipts cloth roller (12) pivoted second motor (14), characterized by: put cloth roller (11) and receive cloth roller (12) and be located feed end and discharge end respectively, fixed mounting has frame (21) on checkout stand (10), install supplementary overspeed device tensioner (40) that makes things convenient for the local tensioning of cloth on frame (21), supplementary overspeed device tensioner (40) include fixed block (41), install on frame (21) and be used for driving actuating cylinder (42) about fixed block (41) and install two roller sets that are used for the tensioning cloth on fixed block (41), establish cavity (45) in fixed block (41), along its length direction sliding connection have first slider (46) in cavity (45), first slider (46) one end fixedly connected with reset spring (47), reset spring (47) are kept away from first slider (46) one end and are fixed at cavity (45) inner wall, one the roller set is fixed at fixed block (41) one end, and the other roller set is fixed on a first sliding block (46) and comprises a fixed rod (43) and pressing rollers (44) symmetrically arranged at two ends of the fixed rod (43).

2. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 1, wherein: frame (21) including fixing curb plate (211) in checkout stand (10) both sides and installing roof (212) in both sides curb plate (211) upper end, one side wear to be equipped with lead screw (31) on curb plate (211), lead screw (31) are worn to establish the face parallel of direction and checkout stand (10) butt cloth, drive lead screw (31) pivoted third motor (32) are installed to lead screw (31) one end, third motor (32) are arranged in on curb plate (211), lead screw (31) threaded connection is in roof (212), sliding connection is respectively in both sides curb plate (211) roof (212) both sides, driving cylinder (42) fixed mounting is on roof (212).

3. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 1, wherein: the fixed block (41) is provided with an embedded groove (411), a U-shaped rod (412) used for limiting the first sliding block (46) is rotationally connected in the embedded groove (411), one end of the opening end of the U-shaped rod (412) is rotationally connected to the fixed block (41), and the other end of the U-shaped rod (412) is embedded into the embedded groove (411).

4. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 1, wherein: the pressing roller (44) is rotatably connected to the fixing rod (43).

5. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 2, wherein: offer groove (50) of dodging of intercommunication both sides lateral wall along vertical direction on checkout stand (10), dodge in groove (50) and wear to be equipped with tensioning roller (53) along its length direction, vertical direction sliding connection is followed respectively in both sides curb plate (211) at tensioning roller (53) both ends.

6. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 5, wherein: the notch of the avoiding groove (50) is provided with a round angle.

7. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 1, wherein: and the inspection table (10) is fixedly provided with an illumination layer (20) by abutting against one surface of the cloth.

8. The cloth inspecting machine with the auxiliary tensioning device as claimed in claim 1, wherein: put cloth roller (11) and be close to checkout stand (10) one side and receive cloth roller (12) and be close to checkout stand (10) one side and all install the crease-resistance roller set, the crease-resistance roller set includes two outer wall receiving roller (70) of mutual butt, each receiving roller (70) all rotate and connect in curb plate (211) inner wall.