CN113071943A

CN113071943A - Unwinding device of cloth inspecting machine and process thereof

Info

Publication number: CN113071943A
Application number: CN202110301428.XA
Authority: CN
Inventors: 周建飞
Original assignee: Hangzhou Hongda Decorative Fabric Weaving Co ltd
Current assignee: Hangzhou Hongda Decorative Fabric Weaving Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-07-06
Anticipated expiration: 2041-03-22
Also published as: CN113071943B

Abstract

The application relates to the technical field of cloth inspecting equipment, in particular to an unwinding device of a cloth inspecting machine and a process thereof, wherein the unwinding device comprises a material preparing mechanism and a material supporting mechanism; the material preparation mechanism comprises a supporting plate for placing full reels; the material supporting mechanism comprises a fixing frame, the fixing frame is rotatably connected with a rotating frame which rotates on a vertical surface, a plurality of limiting assemblies which are arranged circumferentially are arranged on the rotating frame, each limiting assembly comprises two limiting columns which are inserted into the winding drum, the two limiting columns are connected with a rotating disc through springs, and the rotating disc is rotatably connected to the rotating frame around the axes of the limiting columns; two limit posts are provided with touch rods, and the fixed frame is provided with two arc plates for the corresponding touch rods to move and touch; when the touch rod moves on the arc-shaped plate, the distance between the two limiting columns is increased; when the abutting rod is separated from the arc-shaped plate, the two limiting columns are respectively positioned at two ends of the full winding drum placed on the supporting plate. The inspection efficiency of surface fabric can be improved.

Description

Unwinding device of cloth inspecting machine and process thereof

Technical Field

The application relates to the technical field of cloth inspecting equipment, in particular to an unwinding device of a cloth inspecting machine and a process thereof.

Background

The blended knitted fabric woven by the spandex fiber and the polyester yarn has good tensile property, recovery property and photochromic property. After the blended knitted fabric is manufactured, a cloth inspecting machine is needed to inspect the quality of the fabric.

In the process of detecting the fabric, the winding drum wound with the fabric is placed on the two rotating rollers, the fabric on the winding drum bypasses the main body of the cloth inspecting machine and is wound by the winding roller, in the rotating process of the winding roller, the winding drum rotates to discharge the material, and workers find out the fabric defects and color differences on the main body of the cloth inspecting machine in a visual inspection mode.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: in the inspection process of surface fabric, the workman need constantly take off empty reel from two live-rollers to the full reel that will roll up the surface fabric is placed on two live-rollers, and it is comparatively troublesome to operate, has influenced the perching efficiency of surface fabric, consequently needs to improve.

Disclosure of Invention

In order to improve the inspection efficiency of the fabric, the application provides a cloth inspecting machine unwinding device and a process thereof.

First aspect, the application provides a cloth inspection machine unwinding device adopts following technical scheme: an unwinding device of a cloth inspecting machine comprises a material preparing mechanism and a material supporting mechanism;

the material preparation mechanism comprises a supporting plate for placing full reels;

the material supporting mechanism comprises a fixing frame, the fixing frame is rotatably connected with a rotating frame which rotates on a vertical surface, a plurality of limiting assemblies which are arranged circumferentially are arranged on the rotating frame, each limiting assembly comprises two limiting columns which are inserted into the winding drum, the two limiting columns are connected with a rotating disc through springs, and the rotating disc is rotatably connected to the rotating frame around the axes of the limiting columns;

two limit posts are provided with touch rods, and the fixed frame is provided with two arc plates for the corresponding touch rods to move and touch; when the touch rod moves on the arc-shaped plate, the distance between the two limiting columns is increased; when the abutting rod is separated from the arc-shaped plate, the two limiting columns are respectively positioned at two ends of the full winding drum placed on the supporting plate.

Through adopting above-mentioned technical scheme, in the inspection process of surface fabric, two spacing posts will peg graft in full reel, and the surface fabric on the full reel will be drawn the motion, and full reel, spacing post and carousel will take place to rotate for the surface fabric unreels continuously.

After the fabric is unreeled, rotating the rotating frame to enable all the limiting assemblies to synchronously rotate, wherein two contact rods in one group of limiting assemblies respectively move on the corresponding arc-shaped plates, the two limiting columns are far away from each other, and the spring deforms at the moment; if the two limiting columns are sleeved with the empty winding drums, the empty winding drums can directly fall off.

When the abutting rod is separated from the arc-shaped plate, the two limiting columns are respectively positioned at two ends of the full winding drum placed on the supporting plate, and the spring returns to a natural state and prompts the corresponding limiting columns to be inserted into the full winding drum; the other group of limiting assemblies with full winding drums rotate to the unwinding positions to unwind the fabric. Therefore, the feeding of the full winding drum and the blanking of the empty winding drum can be realized by rotating the rotating frame, the operation is convenient, and the inspection efficiency of the fabric is improved.

Optionally, the limiting assembly further comprises two limiting plates which are respectively abutted against two ends of the full winding drum, and the limiting plates are arranged on the rotating frame; when the limiting columns are inserted into the full winding drum, the full winding drum is located between the two limiting plates.

By adopting the technical scheme, the two limiting plates can limit the full bobbin, so that the full bobbin is not easy to shake in the process of unwinding the fabric; when two spacing posts kept away from each other, if the cover was equipped with empty reel on two spacing posts, then empty reel has probably been driven the motion by spacing post, and the limiting plate will block empty reel to be convenient for empty reel breaks away from spacing post.

Optionally, the device further comprises a control mechanism, the control mechanism comprises a control panel and a motor, the motor is coupled to the control panel and arranged on the fixed frame, and an output shaft of the motor is connected to the rotating frame.

Through adopting above-mentioned technical scheme, control panel can control the rotatory appointed number of turns of output shaft of motor, so through operation control panel, can realize the material loading of full reel and the unloading of empty reel, convenient operation.

Optionally, the control mechanism further includes an infrared sensor coupled to the control panel, and when the infrared sensor detects that the fabric is changed from a detectable fabric to a non-detectable fabric, the infrared sensor sends a start signal to the control panel, and the control panel controls the output shaft of the motor to rotate for a designated number of turns.

By adopting the technical scheme, the infrared sensor can continuously detect the fabric in the unwinding process of the fabric; after the fabric is unreeled and completed, the infrared sensor cannot detect the fabric, the infrared sensor sends a starting signal to the control panel, and the control panel controls the number of turns specified by the rotation of the output shaft of the motor. Therefore, after the surface material unreeled and accomplished, the unloading of the material loading of full reel and empty reel will be accomplished automatically to this application.

Optionally, the two sides of the supporting plate are respectively connected with a material guide plate and a baffle plate, the material guide plate is arranged in an inclined manner, and the material guide plate is connected to the lower end of the supporting plate.

By adopting the technical scheme, a worker can place a plurality of full reels on the material guide plate for material preparation; when the full reel placed on the supporting plate is driven by the limiting assembly to be separated from the supporting plate, the full reel on the guide plate rolls downwards, and the full reel at the lowest part rolls onto the supporting plate and is blocked by the baffle plate, so that the automatic material preparation of the full reel is realized.

Optionally, the full-automatic feeding device further comprises a feeding mechanism, the feeding mechanism comprises a mounting frame, a rotating plate is connected to the mounting frame in a rotating mode through a horizontal shaft, a half-passing ring for full reels to be placed is arranged on the rotating plate, and a notch for the full reels to roll to the high end of the material guide plate is formed in the half-passing ring.

Through adopting above-mentioned technical scheme, when the workman overturns the deflector to the guide plate, the full reel of half intra-annular will pass the breach and roll to the high-end of stock guide on, need not the workman and lifts the full reel and place on the high-end of stock guide to the prepare material of full reel has been made things convenient for.

Optionally, a gear is fixedly sleeved on the horizontal shaft, a rack is meshed on the gear, the rack is connected to the mounting frame in a sliding manner along the vertical direction, and a pedal is arranged on the rack.

Through adopting above-mentioned technical scheme, when the workman trampled the running-board downwards, the rack will downstream and drive gear and horizontal axis rotation, and the horizontal axis will drive the rotor plate and cross the upset of semicircle ring to the stock guide for on the full reel material loading of semicircle ring to the stock guide. After the full winding drum in the excessive semi-ring finishes feeding, the rotating plate and the excessive semi-ring are turned downwards to reset due to self gravity. Therefore, the full winding drum can be fed onto the material guide plate by treading the pedal plate, and the operation is convenient.

In a second aspect, the unwinding process of the unwinding device of the cloth inspecting machine provided by the application adopts the following technical scheme: an unwinding process based on an unwinding device of a cloth inspecting machine comprises the following steps,

s1, in the process of detecting the fabric, the full winding drum and the limiting column rotate, and the infrared sensor detects the fabric;

s2, after the fabric is completely unreeled, the infrared sensor cannot detect the fabric, the infrared sensor sends a starting signal to the control panel, the control panel controls the output shaft of the motor to rotate for a specified number of turns, the rotating frame enables the contact rod to rotate on the arc-shaped plate, the two limiting columns are far away from each other, and the spring deforms;

if the two limiting columns are sleeved with the empty winding drums, the empty winding drums directly fall off;

s3, when the touch rod is separated from the arc plate, the spring will return to the natural state and make the limit column inserted into the full reel, another limit column assembled with the full reel will rotate to the unreeling position, at this time, the output shaft of the motor will stop rotating.

Through adopting above-mentioned technical scheme, in the testing process of surface fabric, two spacing posts will peg graft in full reel, and the surface fabric on the full reel will be drawn the motion, and full reel, spacing post and carousel will take place to rotate for the surface fabric unreels continuously, and infrared sensor will continuously detect the surface fabric.

After the fabric is completely unreeled, the infrared sensor cannot detect the fabric, the infrared sensor sends a starting signal to the control panel, and the control panel controls the output shaft of the motor to rotate for a specified number of turns; the motor drives the rotating frame to rotate, the rotating frame enables the contact rod to move on the arc-shaped plate, the two limiting columns are far away from each other, and the spring deforms; if the two limiting columns are sleeved with the empty winding drums, the empty winding drums can directly fall off.

When the abutting rod is separated from the arc-shaped plate, the two limiting columns are respectively positioned at two ends of the full winding drum placed on the supporting plate, and the spring returns to a natural state and prompts the corresponding limiting columns to be inserted into the full winding drum; the other group of limiting assemblies with full winding drums can rotate to the unwinding position to unwind the fabric, and the output shaft of the motor stops rotating at the moment.

To sum up, this application has realized the automatic feeding of full reel and the automatic unloading of empty reel to the inspection efficiency of surface fabric has been improved.

To sum up, the application comprises the following beneficial technical effects:

1. the material preparation mechanism and the material supporting mechanism are arranged, so that the feeding of a full reel and the blanking of an empty reel can be realized by rotating the rotating frame, the operation is convenient, and the inspection efficiency of the fabric is improved;

2. the control mechanism is arranged, so that when the fabric is unreeled, the feeding of a full reel and the discharging of an empty reel are automatically completed;

3. due to the arrangement of the feeding mechanism, the full winding drum can be conveniently prepared on the guide plate by workers, and the preparation of the full winding drum is realized.

Drawings

FIG. 1 is a schematic diagram of the overall structure in the embodiment of the present application;

FIG. 2 is a schematic structural diagram showing a material preparing mechanism and a material supporting mechanism in an embodiment of the present application;

fig. 3 is a schematic structural view showing a material holding mechanism in the embodiment of the present application.

Reference numerals: 1. a feeding mechanism; 11. a mounting frame; 12. a horizontal axis; 13. a rotating plate; 14. passing through a semi-ring; 141. a notch; 15. a gear; 16. a rack; 17. a first square column; 18. a foot pedal; 2. a material preparation mechanism; 21. a material guide plate; 22. a support plate; 221. an avoidance groove; 23. a baffle plate; 3. a material supporting mechanism; 31. a fixed mount; 32. a rotating frame; 321. a rotating shaft; 322. a disc; 33. a limiting component; 331. a turntable; 332. a second square column; 333. a limiting column; 334. a spring; 335. a connecting rod; 336. a touch bar; 337. a limiting plate; 338. perforating holes; 34. an arc-shaped plate; 341. fixing the rod; 4. a control mechanism; 41. a control panel; 42. a motor; 43. an infrared sensor.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses cloth inspection machine unwinding device. As shown in fig. 1, a cloth inspecting machine unwinding device includes a feeding mechanism 1, a material preparing mechanism 2 and a material supporting mechanism 3, wherein the feeding mechanism 1 is used for feeding a full roll onto the material preparing mechanism 2, and the material supporting mechanism 3 is used for supporting the full roll on the material preparing mechanism 2, so that the full roll can unwind the fabric.

The material preparation mechanism 2 comprises a material guide plate 21 which is obliquely arranged, the cross section of the material guide plate 21 is U-shaped, and two ends of the full winding drum respectively abut against the inner walls of two opposite sides of the material guide plate 21, so that the full winding drum is not easy to shake; the lower end of the material guiding plate 21 is integrally formed with a supporting plate 22, the supporting plate 22 is horizontally arranged, and a baffle 23 is integrally formed on one side of the supporting plate 22 far away from the material guiding plate 21. The full roll at the lowest position of the guide plate 21 will rest on the pallet 22 and be stopped by the stop 23.

The feeding mechanism 1 comprises a mounting frame 11, a rotating plate 13 is rotatably connected to the mounting frame 11 through a horizontal shaft 12, two half passing rings 14 are fixed on the rotating plate 13, and a full scroll is placed in the two half passing rings 14; the outer wall of the half passing ring 14 is provided with a notch 141 communicated with the inner side of the half passing ring 14; a gear 15 is fixedly sleeved on the horizontal shaft 12, a rack 16 is meshed on the gear 15, and the rack 16 is vertically arranged; a first square column 17 penetrates through the rack 16 in a sliding manner, and the first square column 17 is vertically arranged and fixed on the mounting frame 11; a foot pedal 18 is also secured to the rack 16.

When a worker places a full scroll inside the two half-passing rings 14, the worker steps on the pedal 18, and the rack 16 moves downwards and drives the gear 15, the horizontal shaft 12, the rotating plate 13, the half-passing rings 14 and the full scroll to rotate; when the rotating plate 13 rotates to the vertical state, the full bobbin is separated from the notch 141 and rolls to the high end of the material guiding plate 21, which facilitates the preparation of the full bobbin.

As shown in fig. 1 and fig. 2, the material supporting mechanism 3 includes a fixed frame 31 and a rotating frame 32, the rotating frame 32 includes a rotating shaft 321 rotatably connected to the fixed frame 31, the rotating shaft 321 is horizontally disposed, and two discs 322 are fixedly disposed on the rotating shaft 321 in a penetrating manner; the rotating shaft 321 is further provided with a plurality of circumferentially arranged limiting assemblies 33, and in this embodiment, the number of the limiting assemblies 33 is three.

As shown in fig. 2 and 3, the limiting component 33 includes two rotating discs 331 rotatably connected to the corresponding circular discs 322, a second square column 332 extending axially along the rotating shaft 321 is fixed on the rotating discs 331, a limiting column 333 is slidably disposed on the second square column 332, and the rotating discs 331 are rotatably connected to the circular discs 322 around the axis of the limiting column 333; the second square column 332 is wound with a spring 334, and two ends of the spring 334 are respectively and fixedly connected to the limiting column 333 and the rotating disc 331. In the process of checking the fabric, the spring 334 enables the limiting columns 333 to be inserted into the full winding drum, and the two limiting columns 333 limit the full winding drum together; the fabric on the full bobbin is pulled to move, and the full bobbin, the limiting column 333 and the rotary table 331 rotate, so that the fabric is continuously unreeled.

The two limiting posts 333 are rounded at opposite ends, so that the limiting posts 333 can be inserted into the full bobbin conveniently. The two limiting columns 333 are connected with a touch rod 336 through a connecting rod 335; two arc plates 34 are fixed on the fixing frame 31 through fixing rods 341; the support plate 22 is provided with two avoidance grooves 221 through which the corresponding collision rods 336 pass.

As shown in fig. 1 and fig. 2, the control mechanism 4 is disposed at the fixing frame 31, the control mechanism 4 includes a control panel 41, a motor 42 and an infrared sensor 43, and both the motor 42 and the infrared sensor 43 are coupled to the control panel 41 and fixed on the fixing frame 31; the output shaft of the motor 42 is fixedly connected to the rotating shaft 321.

In the unwinding process of the fabric, the infrared sensor 43 continuously detects the fabric; after the fabric is completely unreeled, the infrared sensor 43 cannot detect the fabric, at this time, the infrared sensor 43 sends a starting signal to the control panel 41, and the control panel 41 controls the output shaft of the motor 42 to rotate for a specified number of turns.

As shown in fig. 2 and fig. 3, the motor 42 will drive the rotating shaft 321 and the disc 322 to rotate, the disc 322 will drive all the limiting assemblies 33 to rotate, the interference rod 336 in one of the limiting assemblies 33 will move on the side where the two arc plates 34 depart from each other, so that the two limiting posts 333 are far away from each other, and the spring 334 will deform; if an empty reel is sleeved on the two limiting columns 333, the two limiting columns 333 are separated from the inner side of the empty reel, so that the empty reel directly falls off.

When the contact rod 336 passes through the avoiding groove 221 and is separated from the arc-shaped plate 34, the two limiting posts 333 are respectively positioned at two ends of the full reel placed on the supporting plate 22, and at the moment, the spring 334 returns to a natural state and urges the corresponding limiting post 333 to be inserted into the full reel; the full roll on the support plate 22 is driven by another set of the limiting assemblies 33 to rotate to the unwinding position, so that the fabric can be continuously unwound, and at this time, the output shaft of the motor 42 stops rotating.

As shown in fig. 3, the limiting assembly 33 further includes two limiting plates 337, and the two limiting plates 337 are fixed on the corresponding rotating discs 331 through fixing columns; the two limiting plates 337 are both provided with through holes 338 for the limiting posts 333 to penetrate, and the aperture of the through holes 338 is smaller than the outer diameter of the winding drum and larger than the inner diameter of the winding drum. In the process of unwinding the fabric, the full bobbin is positioned between the two limiting plates 337, and the end part of the full bobbin is arranged in a gap with the limiting plates 337, so that the full bobbin is not easy to shake in the process of unwinding the fabric; when the two limit posts 333 are far away from each other and are separated from the inner side of the empty reel, the empty reel may be driven by the limit posts 333 to move, the end of the empty reel abuts against the limit plate 337, and the limit plate 337 blocks the movement of the empty reel, so that the limit posts 333 are convenient to separate from the inner side of the empty reel.

The implementation principle of the unwinding device of the cloth inspecting machine is as follows: in the process of checking the fabric, the two limiting columns 333 are inserted into the full winding drum, the fabric on the full winding drum is dragged to move, the full winding drum, the limiting columns 333 and the rotary table 331 rotate, the fabric is continuously unreeled, and the infrared sensor 43 continuously detects the fabric.

After the fabric is completely unreeled, the infrared sensor 43 cannot detect the fabric, at this time, the infrared sensor 43 sends a starting signal to the control panel 41, and the control panel 41 controls the output shaft of the motor 42 to rotate for a specified number of turns; the motor 42 will drive the rotating shaft 321 and the disc 322 to rotate, the disc 322 will drive all the limiting assemblies 33 to rotate, the abutting rods 336 in one group of the limiting assemblies 33 will move on the arc-shaped plate 34, so that the two limiting columns 333 are far away from each other, and the spring 334 will deform; if an empty reel is sleeved on the two limiting columns 333, the two limiting columns 333 are separated from the inner side of the empty reel, so that the empty reel directly falls off.

When the abutting rod 336 is separated from the arc-shaped plate 34, the two limiting columns 333 are respectively positioned at the two ends of the full reel placed on the supporting plate 22, and at the moment, the spring 334 returns to the natural state and urges the corresponding limiting column 333 to be inserted into the full reel; the full roll on the support plate 22 is driven by another set of the limiting assemblies 33 to rotate to the unwinding position, so that the fabric can be continuously unwound, and at this time, the output shaft of the motor 42 stops rotating.

The embodiment of the application further discloses an unwinding process of the unwinding device of the cloth inspecting machine. An unwinding process based on an unwinding device of a cloth inspecting machine comprises the following steps,

s1, in the process of detecting the fabric, the fabric on the full bobbin is pulled to move, the full bobbin and the limiting column 333 autorotate, so that the fabric is unreeled, and the infrared sensor 43 continuously detects the fabric;

s2, after the fabric is completely unreeled, the infrared sensor 43 cannot detect the fabric, the infrared sensor 43 sends a starting signal to the control panel 41, and the control panel 41 controls the output shaft of the motor 42 to rotate for a specified number of turns; the motor 42 will drive the rotating frame 32 to rotate, and the rotating frame 32 will make the abutting rods 336 in one of the limiting assemblies 33 rotate on the arc-shaped plate 34, so that the two limiting columns 333 are far away from each other, and the spring 334 will deform;

if an empty reel is sleeved on the two limiting columns 333, the two limiting columns 333 are separated from the inner side of the empty reel, so that the empty reel directly falls off;

s3, when the abutting rod 336 is separated from the arc plate 34, the two limiting posts 333 will be respectively located at the two ends of the full reel placed on the supporting plate 22, and the spring 334 will return to the natural state and urge the limiting posts 333 to be inserted into the full reel; the full roll on the support plate 22 is driven by another set of the limiting assemblies 33 to rotate to the unwinding position, so that the fabric can be continuously unwound, and the output shaft of the motor 42 stops rotating at this time.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a cloth inspection machine unwinding device which characterized in that: comprises a material preparing mechanism (2) and a material supporting mechanism (3);

the material preparing mechanism (2) comprises a supporting plate (22) for placing full reels;

the material supporting mechanism (3) comprises a fixed frame (31), the fixed frame (31) is rotatably connected with a rotating frame (32) which rotates on a vertical surface, a plurality of limiting assemblies (33) which are circumferentially arranged are arranged on the rotating frame (32), each limiting assembly (33) comprises two limiting columns (333) which are inserted into a winding drum, the two limiting columns (333) are connected with a rotating disc (331) through springs (334), and the rotating disc (331) is rotatably connected to the rotating frame (32) around the axis of each limiting column (333);

the two limiting columns (333) are respectively provided with a touch rod (336), and the fixed frame (31) is provided with two arc-shaped plates (34) for the corresponding touch rods (336) to move and touch; when the touch rod (336) moves on the arc-shaped plate (34), the distance between the two limiting columns (333) is increased; when the contact rod (336) is separated from the arc-shaped plate (34), two limit columns (333) are respectively positioned at two ends of the full reel which is placed on the supporting plate (22).

2. The cloth inspecting machine unwinding device of claim 1, characterized in that: the limiting assembly (33) further comprises two limiting plates (337) which are respectively abutted against two ends of the full winding drum, and the limiting plates (337) are arranged on the rotating frame (32); when the limiting column (333) is inserted into the full winding drum, the full winding drum is positioned between the two limiting plates (337).

3. The cloth inspecting machine unwinding device of claim 1 or 2, characterized in that: the automatic control device is characterized by further comprising a control mechanism (4), wherein the control mechanism (4) comprises a control panel (41) and a motor (42), the motor (42) is coupled to the control panel (41) and arranged on the fixed frame (31), and an output shaft of the motor (42) is connected to the rotating frame (32).

4. The cloth inspecting machine unwinding device of claim 3, characterized in that: the control mechanism (4) further comprises an infrared sensor (43) coupled to the control panel (41), when the infrared sensor (43) can detect the fabric, and the fabric is converted into the fabric which cannot be detected, the infrared sensor (43) sends a starting signal to the control panel (41), and the control panel (41) controls the output shaft of the motor (42) to rotate for a specified number of turns.

5. The cloth inspecting machine unwinding device of claim 4, characterized in that: the two sides of the supporting plate (22) are respectively connected with a material guide plate (21) and a baffle plate (23), the material guide plate (21) is obliquely arranged, and the material guide plate (21) is connected to one end of the supporting plate (22) and is a low end.

6. The cloth inspecting machine unwinding device of claim 1 or 5, characterized in that: the full-automatic roll guiding device is characterized by further comprising a feeding mechanism (1), wherein the feeding mechanism (1) comprises a mounting frame (11), a rotating plate (13) is rotatably connected onto the mounting frame (11) through a horizontal shaft (12), a half passing ring (14) for full rolls to be placed is arranged on the rotating plate (13), and a notch (141) for the full rolls to roll to the high end of the material guiding plate (21) is formed in the half passing ring (14).

7. The cloth inspecting machine unwinding device of claim 6, characterized in that: the fixed cover is equipped with gear (15) on horizontal axis (12), and the meshing has rack (16) on gear (15), and rack (16) are connected in mounting bracket (11) along vertical direction sliding, and are equipped with on rack (16) running-board (18).

8. The unwinding process of the unwinding device of the cloth inspecting machine according to claim 4, characterized in that: comprises the following steps of (a) carrying out,

s1, in the process of detecting the fabric, the full winding drum and the limiting column (333) rotate, and the infrared sensor (43) detects the fabric;

s2, after the fabric is completely unreeled, the infrared sensor (43) cannot detect the fabric, the infrared sensor (43) sends a starting signal to the control panel (41), the control panel (41) rotates the output shaft of the control motor (42) for a specified number of turns, the rotating frame (32) enables the contact rod (336) to rotate on the arc-shaped plate (34), the two limiting columns (333) are far away from each other, and the spring (334) deforms;

if the two limiting columns (333) are sleeved with the empty winding drums, the empty winding drums directly fall off;

s3, when the touch bar (336) is separated from the arc plate (34), the spring (334) will return to the natural state and urge the limit post (333) to insert into the full winding drum, another limit post (333) assembled with the full winding drum will rotate to the unwinding position, at this time, the output shaft of the motor (42) will stop rotating.