CN207645659U - It spreads cloth and assists laying device - Google Patents

Abstract

The utility model provides a kind of paving cloth auxiliary laying device, and paving cloth auxiliary laying device includes：Elevating mechanism；The leftover of bolt of cloth is spread, the paving leftover of bolt of cloth is suspended under elevating mechanism；Tilt adjustment portion, tilt adjustment portion connects the side of elevating mechanism with the side of the paving leftover of bolt of cloth, and the paving leftover of bolt of cloth can be driven to swing.The paving cloth auxiliary laying device of embodiment according to the present utility model can be suspended on shop traveller without being laid with ground rail, reducing occupied space and can reducing manual operation, improve operating efficiency.The paving cloth auxiliary laying device of embodiment according to the present utility model can make paving cloth substantially parallel with the type face of blade mold, prevent paving cloth fold.Embodiment according to the present utility model, it is ensured that put the steady of torque and rotating speed during cloth.

Description

Spreading auxiliary layer device

technical field

The utility model relates to the field of wind power generators, in particular to an auxiliary laying device for spreading cloth.

Background technique

When manufacturing blades for wind power generators, glass fiber cloth needs to be laid on the surface of the cavity of the blade mold.

If the manual laying method is adopted, it needs to consume a large labor cost, the operation efficiency is low, the laying effect is poor, wrinkles are easy to occur, and it is difficult to guarantee the laying quality.

If fully automatic laying equipment is used, the workshop needs to be remodeled and occupies a large area. It is not suitable for promotion for enterprises with high land costs. It requires a professional team, and the equipment cost and maintenance cost are relatively high.

If the semi-automatic gantry artificial auxiliary device is used, it is necessary to lay tracks on the ground, so the workshop must be remodeled, which takes up a large area and requires manual operations on the gantry. The work efficiency is low, and due to the existing large molds The height is high, and the gantry method requires a high gantry frame, so the requirements for the workshop space are relatively high, and the operation is very inconvenient.

Utility model content

One of the purposes of the present utility model is to provide an auxiliary cloth laying device, which can make the cloth substantially parallel to the mold surface so as to prevent the cloth from being wrinkled.

The utility model provides an auxiliary layer-laying device for spreading cloth. The auxiliary layer-laying device for spreading cloth comprises: a lifting mechanism; a spreading head, the spreading head is suspended under the lifting mechanism; It is connected with the side of the spreading head and can drive the spreading head to swing. Thus, the spread can be made substantially parallel to the mold surface, preventing wrinkles of the spread.

According to an embodiment of the present invention, the inclination adjusting part may include a rotary shaft or an inclination screw, which may be driven by an inclination servo motor, and the rotary shaft or the inclination screw may be connected to the side of the lifting mechanism, and the inclination servo The motor can be attached to the side of the spreading head.

According to an embodiment of the present invention, the lifting mechanism can suspend the spreading head through at least two hooks, and the inclination screw or the rotary shaft can make the spreading head swing around the hanging position of the hooks under the drive of the inclination servo motor.

According to an embodiment of the utility model, the lifting mechanism can be suspended on the traveling vehicle.

According to an embodiment of the present utility model, the lifting mechanism may include: a lifting platform, the lifting platform is suspended with a spreading head; a steel wire rope, one end of the steel rope is connected to the lifting platform; a lifting servo motor, the lifting servo motor is connected to the other end of the steel rope; a rail car, The rail car is suspended on the driving train, and the lifting servo motor is installed on the rail car; at least two lifting joints connect the rail car with the lifting platform. As a result, the spreading head can be suspended without laying out ground rails, reducing the occupied space.

According to an embodiment of the invention, the at least two jacking joints may comprise a fixed jacking joint fixed to the railcar and a connecting jacking joint nested within each other. The design of nested lifting joints can reduce the occupied space of the whole laying device.

According to an embodiment of the present invention, the spreading head may also include two buffer bars, on which two roller shafts for spreading the cloth to pass are installed horizontally. The spreading cloth is laid after passing through the buffer bar, which can buffer the pulling force of the spreading cloth and prevent the spreading cloth from being damaged.

According to an embodiment of the present invention, the two rollers may include an upper roller and a lower roller. The shaft and the lower roller are tensioned by the first elastic member. In addition to the buffering function of the buffer bar in the horizontal direction, the upper roller shaft can also buffer the tension of the spread in the vertical direction to prevent the spread from being damaged.

According to an embodiment of the present invention, the spreading head can also include a tension sensor, one end of the tension sensor can be connected to the buffer rod through a second elastic member sleeved on the telescopic rod, and the other end of the tension sensor can be fixed to the floor of the spreading head. Roller rack. The laying speed can be indirectly measured by measuring the pulling force of the tension sensor, and constant moment laying can be realized to further prevent the generation of folds in the spread.

According to an embodiment of the present invention, the spreading head may further include an ultrasonic distance sensor and a control unit, the ultrasonic distance sensors are arranged on both sides of the spreading head, and the control unit controls the inclination adjustment part according to the sensing result of the ultrasonic distance sensor to make the spreading head swing .

The cloth-spreading auxiliary layer-laying device according to the embodiment of the utility model can reduce manual operations and improve work efficiency.

Description of drawings

Through the following detailed description in conjunction with the accompanying drawings, the purpose and characteristics of the utility model will become clearer, wherein:

Fig. 1 is a schematic diagram of an auxiliary laying device for laying cloth according to an embodiment of the present invention;

2 is a schematic diagram of a spreading head according to an embodiment of the present invention;

Fig. 3 is a schematic side view of a spreading head according to an embodiment of the present invention;

Fig. 4 is a schematic diagram showing the installation state of the upper roller shaft and the lower roller shaft on the buffer bar;

Fig. 5 is a schematic diagram showing the connection relationship between the buffer rod and the tension sensor;

Fig. 6 is a schematic diagram of a lifting mechanism according to an embodiment of the present invention.

Label description:

1: Lifting mechanism; 2: Spreading head; 4: Angle adjustment part; 10: Hook; 20: Angle screw; 30: Second universal joint; 40: Inclination servo motor; 50: Spreading head frame; 60: Buffer Rod; 61: buffer tank; 62: second elastic member; 63: signal line; 65: telescopic rod; 66: ground roller frame; 71: upper roller shaft; 72: lower roller shaft; 73: first elastic member; 80 : cloth roll servo motor; 90: control box; 100: touch screen; 110: ultrasonic distance sensor; 111: ground roller; 120: correction wheel; 130: tension sensor; 140: cloth roll; 150: reel; 160: running light; 170: lifting platform; 180: first universal joint; 200: installation boss; 210: first connecting lifting joint; 220: second connecting lifting joint; 221: wire rope; 230: fixed lifting joint; 240: rail car; 250: lifting servo motor.

Detailed ways

Hereinafter, preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that in the description of the following embodiments and the drawings, the same reference numerals denote the same components throughout, and repeated descriptions are omitted.

Fig. 1 is a schematic view showing a laying auxiliary laying device according to an embodiment of the present invention.

As shown in FIG. 1 , the auxiliary laying device for laying according to an embodiment of the present invention may include a lifting mechanism 1 and a laying head 2 . The lifting mechanism 1 can be movably connected to the spreading head 2 to change the height of the spreading head 2. The spreading head 2 can be used to lay glass fiber cloth or carbon fiber cloth, and of course other cloths that need to be laid can also be laid. The glass fiber cloth will be used below Laying on blade moulds, for example.

The lifting mechanism 1 may be a hydraulic structure, or a lifting structure including nested lifting joints. The lifting mechanism 1 can be suspended on the crane (for example, the double girder of the crane), and the lifting mechanism 1 can suspend the spreading head 2 and then lay the glass fiber cloth.

Compared with the existing laying method using gantry artificial auxiliary device, the auxiliary laying device for laying cloth of the utility model does not need to lay tracks on the ground, does not need to renovate the workshop, and can save the floor space of the workshop.

The spreading head 2 may include components such as a spreading head frame, a cloth roll servo motor, and a reel, which will be described in detail below.

As shown in Figure 1, the laying auxiliary laying device can also include an inclination adjustment part 4, and the inclination adjustment part 4 can connect the side part of the lifting mechanism 1 and the side part of the spreading head 2 to change the angle of the spreading head 2 relative to the horizontal plane .

For example, the inclination adjustment part 4 can drive the laying head 2 to swing (for example, to rotate in the vertical direction), and at the same time, the glass fiber cloth also rotates in the vertical direction, thereby making the glass fiber cloth substantially parallel to the profile of the blade mold.

The inclination adjustment part 4 can include an actuator (for example, a rotary shaft or an inclination leading screw 20), the actuator can be controlled by an inclination servo motor 40, the actuator can be connected to the side of the lifting mechanism 1, and can be controlled by the servo motor 40. The distance between the side of the lifting mechanism 1 and the side of the spreading head 2 is shortened, that is, the inclination angle of the spreading head 2 (the angle formed by the spreading head 2 and the horizontal plane) can be changed under the action of the inclination servo motor 40 .

As shown in FIG. 1 , the inclination adjustment part 4 may include an inclination screw 20 and an inclination servo motor 40 , the inclination screw 20 may be connected to the side of the lifting mechanism 1 , and the inclination servo motor 40 may be connected to the side of the spreading head 2 .

The inclination screw 20 can be movably connected to the side of the lifting mechanism 1 through the first universal joint 180, and the inclination servo motor 40 can be movably connected to the side of the spreading head 2 through the second universal joint 30, and the universal joint connection can ensure Spreading head 2 is normally inclined and realizes quick disassembly.

When laying glass fiber cloth on the inclined surface of the blade mold, the glass fiber cloth can be basically parallel to the mold surface through the inclination angle adjustment part 4, so that the glass fiber cloth and the mold surface can be closely attached to ensure the laying accuracy. The fiberglass cloth lays flat to prevent wrinkles.

The spreading head according to the embodiment of the present utility model will be described in detail below with reference to FIG. 2 and FIG. 3 .

Fig. 2 is a schematic diagram showing a spreading head according to an embodiment of the present invention; Fig. 3 is a schematic diagram showing a side of the spreading head according to an embodiment of the present utility model.

As shown in Fig. 2, the spreading head 2 may have a regular shape, for example may be substantially square. Servo motors can be installed on both sides of the spreading head 2, the top of the spreading head 2 can be connected with the lifting mechanism 1, and the glass fiber cloth can be laid on the blade mold from the bottom of the spreading head 2.

As shown in FIG. 3 , the spreading head 2 may include a spreading head frame 50 , a cloth roll servo motor 80 installed on the spreading head frame 50 , and a reel 150 for installing the cloth roll.

Spreading headframe 50 can be the main load-bearing structure, and can include components such as cable routing frame, sensor mounting frame, cloth roll servo motor mounting frame, control box mounting frame, and ground wheel frame.

The cloth roll servo motor 80 can be installed on the side of the cloth spreading head 2, and the reel 150 can be installed horizontally on the cloth spreading head frame 50. It can also be connected with the cloth roll servo motor 80 through the engagement between the gears, that is, parts such as belts can be omitted, and the middle part of the reel 150 is used for winding glass fiber cloth to form the cloth roll 140 .

The cloth roll servo motor 80 can control the laying speed of the cloth roll 140 or the reel 150 under the control of the control unit, so as to ensure the constant torque of the glass fiber cloth laying process and avoid tensile damage to the glass fiber cloth.

Spreading head 2 can also comprise control box 90, and control box 90 can be installed in the rear portion of spreading head 2, can be equipped with electrical components such as circuit breaker, switching power supply and control unit (for example, programmable logic controller (PLC) in control box 90 PLC)), communication modules, wireless remote control receivers and other devices.

PLC can be the core control device, which collects the signals of all sensors and can control the operation of servo motors and frequency converters through high-speed pulses or analog quantities, so as to realize high-precision regulation of each component. The wireless remote control receiver can receive the control commands sent by the wireless remote sensing industrial remote control.

For example, when it is necessary to lay glass fiber cloth on the blade mold, the spreading head 2 can be hoisted, and then the rotation speed of the cloth roll servo motor 80 can be controlled by the control unit, thereby controlling the speed at which the reel 150 releases the cloth roll 140 . During the laying process, the real-time laying control can be carried out through the wireless remote sensing industrial remote control, and the relevant parameters can also be preset for automatic laying.

As shown in FIG. 3 , the spreading head 2 may further include an ultrasonic distance sensor 110 , and the ultrasonic distance sensor 110 may be installed at the bottom of the spreading head frame 50 . Specifically, the ultrasonic distance sensors 110 may be symmetrically installed on both sides of the spreading head frame 50 to detect the height of the spreading head 2 (eg, spreading head frame 50 ) from the blade mold (eg, profile).

However, the present invention is not limited thereto, and an infrared or laser sensor can also be used instead of the ultrasonic distance sensor 110 as long as the distance between the two sides of the spreading head 2 and the mold surface can be measured.

When the heights of the distance profile measured by the two ultrasonic distance sensors 110 symmetrically arranged on both sides of the spreading head frame 50 are unequal (for example, the difference is large), the inclination servo motor can be controlled by the control unit in the control box 90 40 drives the inclination lead screw 20 to rotate, so that the heights of both sides of the spreading head frame 50 from the profile are substantially the same.

The control box 90 may further include a touch screen 100, which may be used to display operating data of the control system and set operating parameters. For example, the rotation speed of the cloth roll servo motor 80 or the cloth releasing speed of the reel 150 can be set through the touch screen 100 . In addition, the spreading head frame 50 can also be equipped with a running light 160, which can be used as a running warning light and a fault light of the auxiliary laying device for spreading cloth.

According to an embodiment of the present utility model, the laying auxiliary device for laying may further include a buffer bar 60 on which two roller shafts for the glass fiber cloth to pass may be installed horizontally. The glass fiber cloth is laid after being buffered by the buffer bar 60, which can effectively reduce the tension of the glass fiber cloth and prevent the glass fiber cloth from being damaged.

The buffer rods 60 can be installed in the spreading head 2 generally along the vertical direction, specifically as shown in FIG. 2 and FIG. 3 , two buffer rods 60 can be installed on both sides of the spreading head 2 . The buffer bar 60 may be connected to the spreading head frame 50 perpendicular to the reel 150 . The buffer rod 60 can be made of non-rigid material, and can be deflected under the pull of the glass fiber cloth. The installation manner of the two rollers on the buffer bar 60 will be described in detail below with reference to FIG. 4 and FIG. 5 .

Fig. 4 is a schematic diagram showing the installation state of the upper roller shaft and the lower roller shaft on the buffer rod; Fig. 5 is a schematic diagram showing the connection relationship between the buffer rod and the tension sensor.

As shown in Figure 4, two roller shafts (for example, an upper roller shaft 71 and a lower roller shaft 72) can be installed horizontally on the buffer rod 60, and the two ends of the lower roller shaft 72 can be fixedly installed on the buffer rod 60 to ensure buffering Bar 60 can not deflect left and right, the two ends of upper roller shaft 71 can be movably installed on buffer rod 60, and the glass fiber cloth can pass through the gap between upper roller shaft 71 and lower roller shaft 72.

The upper roller shaft 71 and the lower roller shaft 72 can be tensioned by the first elastic member 73 (for example, a spring), and the distance between the upper roller shaft 71 and the lower roller shaft 72 can be changed under the effect of glass fiber cloth. The upper roller shaft 71 can move away from or approach the lower roller shaft 72 under the action of the first elastic member 73 .

As shown in FIGS. 3 and 4 , a buffer groove 61 can be formed on the buffer rod 60 , and the upper roller 71 can move in the buffer groove 61 .

For example, when the cloth releasing speed of the reel 150 is slow, the cloth roll 140 will be subjected to the pulling force of the released glass fiber cloth. Move upward in the buffer groove 61, thereby releasing the pulling force of the glass fiber cloth. Thereby, it is possible to prevent the shock absorber 60 from rattling.

In addition, when the upper roller shaft 71 moved to the uppermost part of the buffer tank 61, the buffer rod 60 could move under the action of the glass fiber cloth (for example, in the state shown in Figure 3, the buffer rod 60 moved under the glass fiber cloth. movement to the right under action).

As shown in Figure 5, according to an embodiment of the present utility model, the spreading head 2 can also include a tension sensor 130, and the tension sensor 130 can sense the horizontal force of the buffer rod 60 (for example, can sense the compression moment of the elastic member) , to indirectly sense the feeding speed.

One end of the tension sensor 130 can be connected to the buffer rod 60 through the second elastic member 62 sleeved on the telescopic rod 65 . The second elastic member 62 can be a positioning elastic member fixed on the buffer bar 60, and the other end of the tension sensor 130 can be fixed to the spreading head frame 50 or the ground roller frame 66, and the ground roller frame 66 is installed on the bottom of the spreading head frame 50, And be used for installing ground roller 111. In addition, the sensing data of the tension sensor 130 may be transmitted to the control unit through the signal line 63 .

When the cloth laying speed is slow and the force on the cloth roll 140 is too large, the buffer rod 60 moves in the same direction as the laying direction, and the second elastic member 62 is compressed. Here, the pressing moment of the second elastic member 62 can be set in advance, and the pressing moment can be basically kept constant by controlling the feeding speed of the glass fiber cloth. In this way, constant moment laying is realized, and constant moment laying can reduce wrinkles.

As shown in Figure 3, the spreader head 2 can also include a correction wheel 120, which can include two rollers, and can be used to control the laying direction of the glass fiber cloth, and ensure that the spreader head 2 is at a certain inclination angle when the glass fiber The cloth remains flat.

After the glass fiber cloth wound on the reel 150 passes through the two rollers of the buffer rod 60 , it continues to pass through the two rollers of the correction wheel 120 and then is laid on the mold surface of the blade.

According to an embodiment of the present utility model, the control unit in the control box 90 can control the rotation speed of the cloth roll servo motor 80 according to the sensing result of the tension sensor 130, so as to control the cloth releasing speed and/or the movement of the spreading head 2 in the laying direction speed. The movement of the spreading head 2 in the height direction, the span direction (ie, the laying direction of the glass fiber cloth or the length direction of the blade mold) and the chord direction (ie, the width direction of the blade mold) will be described in detail below with reference to FIG. 6 .

Fig. 6 is a schematic diagram of a lifting mechanism according to an embodiment of the present invention.

The lifting mechanism 1 can suspend the spreading head 2 through a quick detachable hook 10 . For example, the lifting mechanism 1 can suspend the spreading head 2 through at least two hooks 10 arranged in a straight line along the laying direction of the glass fiber cloth, so as to keep the spreading head 2 in a horizontal state.

The lifting mechanism 1 may be a lifting structure comprising nested lifting joints. Specifically, the lifting mechanism 1 may include a lifting servo motor 250, a rail car 240, a lifting platform 170, a wire rope 221 and at least two lifting joints.

The lifting table 170 can be movably connected to the spreading head 2 . Specifically, the side of the lifting platform 170 can be connected to the inclination servo motor 40 through the first universal joint 180, and the bottom of the lifting platform 170 can suspend the spreading head 2 through the hook 10 (see FIG. 1 ). In addition, the lifting platform 170 Spreading head 2 can be hung.

One end of the wire rope 221 can be connected to the lifting platform 170 , for example, can be tied to the installation boss 200 of the lifting platform 170 , and the other end of the wire rope 221 can be connected to the lifting servo motor 250 .

The at least two lift joints may include a fixed lift joint 230 and a connecting lift joint (e.g., a first connecting lift joint 210 and a second connecting lift joint 220), the fixed lifting joint 230 may be fixed to a rail car 240, the fixed lifting joint 230 and the connecting lift joint A guide rail and a limiting module can be installed inside the lifting section, the fixed lifting section 230 and the connecting lifting section can be nested with each other through the guide rail, and the limiting module can prevent the lifting section from deflecting during lifting.

Specifically, when the spreading head 2 is lifted by the lifting mechanism 1 (for example, the spreading head 2 is moved in the height direction), the connecting lifting joint can be nested in the fixed lifting joint 230 . When the equipment is not in use, the lifting platform 170 and the connecting lifting joint can all be accommodated in the fixed lifting joint 230, thereby avoiding affecting the driving operation.

The auxiliary laying device for spreading cloth of the present utility model can be suspended on the traveling vehicle, specifically, the rail car 240 can be anchored on the traveling carriage, and the auxiliary laying device for spreading cloth can be realized along the width direction of the blade mould (i.e. , the movement in the chord direction), the entire laying auxiliary laying device and the double-beam crane can move along the driving track, thereby realizing the laying auxiliary laying device along the length direction of the blade mold (that is, the span direction or the laying direction) sports. The above installation and driving methods can make full use of factory resources.

When it is necessary to lay glass fiber cloth, the lifting mechanism 1 lifts the spreading head 2, and the control unit controls the driving and rail car 240 to move the spreading head 2 to the starting position, and then controls the inclination servo motor 40 according to the sensing data of the ultrasonic distance sensor 110 , tilt the spreading head 2 to an appropriate angle, and then control the driving to make the laying auxiliary laying device lay glass fiber cloth along the length direction of the blade mould. The distance between the cloth head 2 and the profile of the blade mold is kept constant, and the spreading moment can be kept constant according to the tension sensor 130 until the cloth head 2 moves to the end, thereby completing the laying of a layer of glass fiber cloth, repeating the above process , can lay multi-layer fiber cloth.

The cloth-spreading auxiliary layer-laying device according to the embodiment of the utility model can reduce manual operations and improve work efficiency.

The cloth laying auxiliary laying device according to the embodiment of the present invention can keep the glass fiber cloth parallel to the mold surface, and prevent the glass fiber cloth from being wrinkled.

According to the embodiment of the utility model, it can ensure the stability of torque and rotation speed during the cloth releasing process.

The above is only a preferred embodiment of the present utility model, but the scope of protection of the present utility model is not limited thereto, any change or replacement that is easily conceivable by those skilled in the art within the technical scope disclosed in the present utility model, All should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. a kind of paving cloth assists laying device, which is characterized in that the paving cloth assists the laying device to include：

Elevating mechanism (1)；

The leftover of bolt of cloth (2) is spread, the paving leftover of bolt of cloth (2) is suspended under the elevating mechanism (1)；

Tilt adjustment portion (4), the tilt adjustment portion (4) by the side of the elevating mechanism (1) and it is described paving the leftover of bolt of cloth (2) side Portion connects, and the paving leftover of bolt of cloth (2) can be driven to swing.

2. paving cloth according to claim 1 assists laying device, which is characterized in that the tilt adjustment portion (4) includes back Shaft or inclination angle leading screw (20), the rotating shaft or inclination angle leading screw (20) are controlled by inclination angle servo motor (40), the rotating shaft Or the inclination angle leading screw (20) is connected to the side of the elevating mechanism (1), the inclination angle servo motor (40) is connected to described Spread the side of the leftover of bolt of cloth (2).

3. paving cloth according to claim 2 assists laying device, which is characterized in that the elevating mechanism (1) is by least Two suspension hooks (10) suspend the paving leftover of bolt of cloth (2) in midair, and the inclination angle leading screw (20) or the rotating shaft are in the inclination angle servo motor (40) the paving leftover of bolt of cloth (2) is made to be swung around the suspension point of the suspension hook (10) under driving.

4. paving cloth according to claim 1 assists laying device, which is characterized in that elevating mechanism (1) suspension is expert at Che Shang.

5. paving cloth according to claim 4 assists laying device, which is characterized in that the elevating mechanism (1) includes：

Lifting platform (170), the lifting platform (170) are hung with the paving leftover of bolt of cloth (2)；

One end of steel wire rope (221), the steel wire rope (221) is connected to the lifting platform (170)；

Lift servo motor (250), the lift servo motor (250) are connected to the other end of the steel wire rope (221)；

Railcar (240), the railcar (240) are suspended in the driving, and the lift servo motor (250) is mounted on institute It states in railcar (240)；

The railcar (240) is connect by least two lifting sections, at least two lifting sections with the lifting platform (170).

6. paving cloth according to claim 5 assists laying device, which is characterized in that at least two lifting sections include solid Surely the connection lifting section for arriving the fixed lifting section (230) of the railcar (240) and being nested with one another.

7. paving cloth according to claim 1 assists laying device, which is characterized in that the paving leftover of bolt of cloth (2) further includes two Buffer bar (60) is horizontally installed with two roll shafts passed through for the paving cloth on two buffer bars (60).

8. paving cloth according to claim 7 assists laying device, which is characterized in that described two roll shafts include upper roll shaft (71) and lower roller shaft (72), the both ends of the lower roller shaft (72) are fixedly installed to the buffer bar (60), the upper roll shaft (71) Both ends activity be installed to the buffer bar (60), the upper roll shaft (71) and lower roller shaft (72) pass through the first elastic component (73) draw Tightly.

9. paving cloth according to claim 8 assists laying device, which is characterized in that the paving leftover of bolt of cloth (2) further includes pulling force One end of sensor (130), the pulling force sensor (130) is connected by the second elastic component (62) being sleeved on telescopic rod (65) It is connected to the buffer bar (60), the other end of the pulling force sensor (130) is fixed to the ground roll wheel carrier of the paving leftover of bolt of cloth (2) (66)。

10. the paving cloth according to any one of claim 1-9 assists laying device, which is characterized in that the paving leftover of bolt of cloth (2) Further include ultrasonic distance sensor (110) and control unit, the ultrasonic distance sensor (110) is arranged in the paving leftover of bolt of cloth (2) both sides, described control unit control the tilt adjustment portion according to the sensing result of the ultrasonic distance sensor (110) (4) so that the paving leftover of bolt of cloth (2) swings.