KR20220155702A - Seal Inspection device - Google Patents

Abstract

The present invention relates to a seal inspection device. According to an embodiment of the present invention, the seal inspection device comprises: a plurality of carriers moving from a first position to stop at a second position, and then returning to the first position; a first motor assigning power to move the carriers; a rotating body rotatably arranged on the carriers, and allowing a seal to be mounted thereon; a second motor rotating the rotating body if the carriers reach the second position to stop; a camera assembly collecting data on the appearance of the seal rotated with the rotating body; a microcomputer receiving the data on the appearance of the seal from the camera assembly to determine whether the seal is defective; and a controller controlling the first motor and the second motor to rotate the rotating body and stop the carriers at the second position. The inspection device of a seal becomes compact by separating the carriers transporting the seal and the camera assembly detecting seal defects, transporting the seal through the carriers, and then inspecting the seal.

Description

Seal inspection device {Seal Inspection device}

The present invention relates to a floating seal inspection device, and more particularly, to a floating seal defect detection device.

Civil engineering vehicles such as excavators and bulldozers and military vehicles such as tanks and armored vehicles are tracked vehicles, and an undercarriage consisting of a track that moves the vehicle by rotation is disposed.

The lower running body (carrier roller, track roller, idler) is filled with oil that lubricates the inside to reduce wear by reducing rotational friction, and the oil leaks to the outside or leaks from the outside to the oil. Prevent foreign substances from entering. In addition, the thread is manufactured to secure sufficient rigidity and weight to perform the above-described function.

If a defect occurs on the surface of the seal and sufficient rigidity is not secured, the rotation of the undercarriage cannot be smoothly supported, and the oil injected into the undercarriage is scattered, causing power loss of the crawler vehicle.

However, the conventional yarn inspection device lacks a structure for transporting and rotating the yarn and fails to secure detailed data on the entire surface of the yarn in detecting defects of heavy yarn. There was a problem in that it took a lot of time and the reliability of the test results for the thread could not be secured.

An object to be solved by the present invention is to compact a yarn inspection device.

Another object of the present invention is to secure the reliability of the yarn inspection results.

Another object of the present invention is to provide an inspection device in which a yarn inspection process is systematized.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a seal inspection apparatus according to an embodiment of the present invention includes a carrier that moves from a first position, stops at a second position, and then returns to the first position; a first motor for providing power to move the carrier; a rotating body disposed rotatably on the carrier and in which a seal is seated; a second motor for rotating the rotating body when the carrier stops at the second position; a camera assembly that collects data on the appearance of the seal rotated together with the rotating body; a microcomputer receiving data about the appearance of the seal from the camera assembly and determining whether the seal is defective; and a controller for controlling the first motor and the second motor so that the carrier is stopped at the second position and the rotating body is rotated to inspect the yarn while moving the carrier, thereby ensuring the ease of inspection of the yarn. have.

The seal inspection device may further include a rail extending from the first position toward the second position, on an upper side of which the carrier is seated.

The seal inspection device includes a track device spaced apart from one side of the carrier; And it may further include a bridge connecting the carrier and the track device.

The carrier and the track device may be moved together between the first position and the second position.

The seal inspection device may further include a holder disposed radially inside the seal and having a variable length in the radial direction.

When the carrier is moved from the first position toward the second position, the holder may come into close contact with the seal while spreading outward in a radial direction.

The holder may be retracted radially inward when the carrier returns to the first position from the second position.

The camera assembly may include: a first light emitting light toward the second position; a second light that is spaced apart from the first light and radiates light toward the second position; a first camera that senses light emitted from the first light and reflected from the room; a second camera that senses light emitted from the second light and reflected from the room; and a laser sensor spaced apart from the first camera and the second camera, irradiating a laser toward the second location, and sensing light reflected from the thread.

The first camera may be disposed above the first lighting.

The second camera may be disposed above the second light.

The laser sensor may be disposed below the first light and the second light.

The first camera and the second camera may be moved closer to each other when the carrier is moved from the first position to the second position.

The first camera and the second camera may be moved away from each other when the carrier is moved from the second position to the first position.

The camera assembly may include a first module spaced apart from one side of the rail and a second module spaced apart from the other side of the rail.

The carrier may be moved to the second position and stopped between the first module and the second module.

When the carrier is moved from the first position to the second position, the first module and the second module are brought closer and the holder is opened in a radial direction so that it can come into close contact with the seal.

When the carrier is moved from the second position to the first position, the first module and the second module can be moved apart, and the holder can be retracted radially.

Details of other embodiments are included in the detailed description and drawings.

According to the seal inspection device of the present invention, one or more of the following effects are provided.

First, there is an advantage in that the yarn inspection device is compact by separating the carrier that carries the yarn and the camera assembly that detects yarn defects, transporting the yarn through the carrier, and then inspecting the yarn.

Second, by stopping the carrier on which the yarn is seated at the position where the camera assembly is placed, and then rotating the yarn to perform the inspection, there is also an advantage in securing reliability of the inspection result of the yarn.

Third, the yarn inspection process is systematized by including a carrier that carries the yarn, a rotating body that rotates the yarn, a camera assembly that detects yarn defects, a microcomputer that determines yarn defects, and a controller that controls the system. There is also

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of an undercarriage according to an embodiment of the present invention.
2 is a cross-sectional view of an undercarriage track roller according to an embodiment of the present invention.
3 is a cross-sectional view of an excavator cutter roller according to an embodiment of the present invention.
4 is a perspective view of a seal according to an embodiment of the present invention.
5A is a cutaway view of a yarn according to an embodiment of the present invention.
5B is a cross-sectional view of a seal according to an embodiment of the present invention.
6 is a front view of a seal inspection device according to an embodiment of the present invention.
7 is a front perspective view, a side perspective view, and a top perspective view of a seal inspection device according to an embodiment of the present invention.
8 is a perspective view of a carrier and camera assembly according to an embodiment of the present invention.
9A is an exploded view of a carrier and a rail according to an embodiment of the present invention.
9B is a first operating diagram of a rail according to an embodiment of the present invention.
9C is a second operating diagram of a rail according to an embodiment of the present invention.
9D is an exploded view of a rail according to an embodiment of the present invention.
10 is a perspective view of a carrier according to an embodiment of the present invention.
11 is a perspective view of a holder according to an embodiment of the present invention.
12A is a diagram showing a first operating state of a seal inspection device according to an embodiment of the present invention.
12B is a diagram showing a second operating state of the seal inspection device according to an embodiment of the present invention.
12C is a diagram showing a third operating state of the seal inspection device according to an embodiment of the present invention.
12D is a diagram showing a fourth operating state of the seal inspection device according to an embodiment of the present invention.
13 is a diagram explaining the principle of detecting actual defects of the first module according to an embodiment of the present invention.
14 is a diagram explaining the principle of detecting actual defects of the second module according to an embodiment of the present invention.
15 is a diagram illustrating a method for measuring the actual appearance of a laser sensor according to an embodiment of the present invention.
16 is a diagram showing an example of displaying actual inspection results according to an embodiment of the present invention.
17A is a block diagram illustrating an overall process of a seal inspection apparatus according to an embodiment of the present invention.
17B is a block diagram illustrating a process of moving a carrier according to an embodiment of the present invention.
17C is a block diagram illustrating an operation process of a camera assembly according to an embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Hereinafter, the present invention will be described with reference to drawings for explaining a seal inspection apparatus according to embodiments of the present invention.

First, with reference to FIGS. 1 to 3 , a floating room 10 (hereinafter referred to as a 'room') installed in a crawler vehicle will be described. 1 is a view showing a lower traveling body of a general tracked vehicle, FIG. 2 is a cross-sectional view showing a track roller 3 shown in FIG. 1, and FIG. 3 is a cross-sectional view showing a cutter roller of an excavator.

Referring to FIG. 1, the lower traveling body of the crawler vehicle includes a chain belt 5 serving as a wheel, a travel reducer 1 supporting the chain belt 5 to rotate, a carrier roller 2, and a track roller. (3) and idler (4). The travel reducer 1, the carrier roller 2, the track roller 3, and the idler 4 are disposed inside the chain belt 5 so as to rotatably support the chain belt 5, respectively.

The traveling reducer 1 is a drive that rotatably supports the front part of the chain belt 5 and rotates the chain belt 5 by reducing the rotational force of the engine of the crawler vehicle.

When the chain belt (5) is rotated by the rotational force of the traveling reducer (1), the carrier roller (2) rotatably supports the upper part of the chain belt (5), and the track roller (3) moves the chain belt (5). rotatably supports the lower part of, and the idler 4 rotatably supports the rear part of the chain belt 5.

The travel reducer (1), carrier roller (2), track roller (3), and idler (4) are filled with lubricating oil to reduce wear by reducing rotational friction, respectively. A floating seal 10 is installed to prevent leaking to the outside or inflow of foreign substances from the outside. The track roller 3 will be described as an example.

Referring to FIG. 2, the track roller 3 has two roller bodies 9 attached by welding (W) to each other, a shaft 6 penetrates the roller body 9, and the shaft 6 and the roller A bush 7 is inserted between the bodies 9.

In addition, collars 8 are coupled to both ends of the shaft 6, and a pair of floating seals 10 are mounted in close contact between the collar 8 and the roller body 9, This is to prevent leakage to the outside or inflow of foreign substances from the outside.

Meanwhile, the pair of floating seals 10 are used in various heavy equipment besides the undercarriage of the crawler vehicle. For example, an excavator is a device for excavating a tunnel such as a tunnel in soil or rock, and the floating seal 10 is also mounted on the cutter roller of the excavator. This will be described below with reference to FIG. 3 .

Referring to FIG. 3, the cutter roller 20 of the excavator includes a shaft 21 and a hub 23 rotatably coupled to the outer circumference of the shaft 21 through a pair of bearings 24 and 25. , It includes a cutter ring 26 coupled to the outer circumference of the hub 23 and excavating by cutting soil or bedrock when the hub 23 rotates.

In addition, sealing retainers 22 are coupled to both ends of the shaft 21, and a pair of floating seals 10 are mounted between the hub 23 and the sealing retainer 22 in a state of close contact, so that the oil is removed from the outside. to prevent leakage or inflow of foreign substances from the outside.

As described above, the pair of floating seals 10 are installed one by one on two parts moving relative to each other to seal the gap between the two parts, thereby preventing leakage of the oil or inflow of foreign substances from the outside. are preventing Here, the relative motion may be a motion in which one of the two parts is fixed and the other is rotated around the shaft.

As the two parts move relative to each other, one of the pair of floating seals 10 is rotated around an axis while being in close contact with each other.

Hereinafter, with reference to FIG. 4, the outer shape of the yarn 10 will be described. 4 is a perspective view showing the overall appearance of the seal 10.

The overall shape of the seal 10 may be an annular shape. A cylindrical space 10s may be formed inside the seal 10 .

The seal 10 includes a first sealing part 11 forming one side of the seal 10, a second sealing part 12 forming the other side of the seal 10, and the first sealing part 11 ) and the third sealing part 13 connecting the second sealing part 12.

The first sealing part 11 and the second sealing part 12 may face each other based on the third sealing part 13 . The outer diameter of the first sealing part 11 may be larger than the outer diameter of the second sealing part 12 . The outer diameter of the third sealing part 13 may decrease as the distance from the first sealing part 11 increases.

Hereinafter, a specific structure of the yarn 10 will be described with reference to FIGS. 5A and 5B. FIG. 5A is a cutaway view of a portion of the seal 10, and FIG. 5B is a cross-sectional view of the seal 10.

The first sealing portion 11 includes a band surface 11a forming an outer end of the first sealing portion 11, an inclined surface 11b extending radially inward from the band surface 11a, and a first sealing portion 11b. It may include a circumferential surface (11c) forming the thickness of the portion (11).

The band surface 11a and the inclined surface 11b may each extend in the circumferential direction, and the inclined surface 11b may be inclined more toward the inside of the yarn 10 than the band surface 11a. The width of the band surface 11a in the radial direction is defined as 'band width w'. The diameter of the radially outer end of the band surface 11a is defined as 'outer diameter D1'. The outer diameter D1 may refer to the outer diameter of the thread 10 .

The circumferential surface 11c may extend in the circumferential direction and form the thickness of the first sealing portion 11 . The thickness of the first sealing part 11 is defined as 'chin thickness t'.

The outer diameter of the third sealing portion 13 may decrease as the distance from the first sealing portion 11 increases. A line drawn perpendicular to the seal 10 at a position away from the first seal part 11 by a predetermined distance G is defined as a reference line SL. At this time, the outer diameter of the yarn 10 at a position passing through the reference line SL is defined as 'reference diameter D2'. The interval (G) may be set in a range between 6.5 mm and 7.0 mm, and may be preferably 6.6 mm.

A groove 13a recessed inward in the radial direction may be formed in the third sealing portion 13 . As shown in FIGS. 2 and 3 , an O-ring 19 supporting the seal 10 may be seated in the groove 13a. The outer diameter of the yarn 10 in the groove portion 13a is defined as 'groove diameter D3'. An inclination angle of the third sealing part 13 from the first sealing part 11 to the groove part 13a with respect to the horizontal direction is defined as 'O-ring surface angle θ'.

Hereinafter, the overall structure of the seal inspection device 100 will be described with reference to FIGS. 6 and 7 . 6 shows a part of the seal inspection device 100, and FIG. 7 shows the entire structure of the seal inspection device 100 in a front view, a side view, and a top view, respectively. In FIG. 7, the drawing described as (a) is a front view, the drawing described as (b) is a side view, and the drawing described as (c) is a top view.

The yarn inspection device 100 includes a conveying device 110 in which the yarn 10 is seated and moved forward and backward, a first module 120 that detects defects of the yarn 10 and measures the size, and a first module. A second module 130 spaced apart from the seal 120 and detecting a defect in the seal 10, and a controller 140 controlling the driving of the conveying device 110, the first module 120, and the second module 130. ) and the microcomputer 150 that receives information about the appearance of the yarn 10 from the first module 120 and the second module 130 and determines the defect of the yarn 10, and the microcomputer 150 determines A display 160 displaying information about one yarn 10, a frame 170 forming the outer shape of the yarn inspection device 100, a base plate 180 on which a rail 111 to be described later is seated, A mount 190 supporting the first module 120 and the second module 130 may be included.

The conveying device 110 can support the load of the thread 10 seated on the upper side of the conveying device 110 and can transport the thread 10 forward and backward.

The first module 120 and the second module 130 may be movably disposed on the mount 190 and may be moved closer or farther apart from each other. The first module 120 and the second module 130 may be collectively referred to as a "camera assembly". That is, the camera assembly may be a higher level concept including the first module 120 and the second module 130 .

The controller 140 may control the movement of each of the transport device 110, the first module 120, and the second module 130. The controller 140 may include a plurality of knobs 141a, 141b, 141c, 141d, and 141e, and each of the knobs 141a, 141b, 141c, 141d, and 141e is connected to the transport device 110 and the first module. It is possible to control the driving of at least one of the 120 and the second module 130. A user may manually transport and inspect the seal 10 through the knob 141 .

The microcomputer 150 can exchange data with the first module 120 and the second module 130, respectively, and based on the data transmitted from the first module 120 and the second module 130, the real ( It is possible to determine whether 10) is defective and measure the standard of yarn 10.

The display 160 can display the data processed by the microcomputer 150 in an identifiable manner to the user. The display 160 may display defects and specifications of the yarn 10 .

The frame 170 may define a space of the seal inspection device 100 . The controller 140 may be supported by the frame 170 .

The base plate 180 may support the transport device 110 and the mount 190 . The transport device 110 , the mount 190 , the first module 120 and the second module 130 may be disposed above the base plate 180 .

The mount 190 may be fixed to the base plate 180 . On the mount 190, the first module 120 and the second module 130 can be movably disposed, and the mount 190 prevents movement of the first module 120 and the second module 130. can support

Hereinafter, a detailed structure of the seal inspection device 100 will be described with reference to FIG. 8 . 8 is an enlarged view of the transport device 100, the first module 120, and the second module 130.

The conveying device 110 includes a carrier 115 on which the thread 10 is seated, a rail 111 extending in the forward and backward directions and on which the carrier 115 is seated, and a guider 116 for guiding the movement of the carrier 115. ) may be included.

The carrier 115 may move forward and backward along the extending direction of the rail 111 . The carrier 115 may be guided for movement in the forward and backward directions by the guider 116 .

The carrier 115 includes a rotating body 113 rotatably disposed on the carrier 115 and on which the thread 10 is seated, a second motor 112 rotating the rotating body 113, and the thread 10 It may include a holder 114 disposed radially inside and having a variable length in the radial direction.

The second motor 112 may be seated on the rail 111 and may move forward and backward along the rail 111 . The second motor 112 may apply power so that the rotating body 113 rotates.

The rotating body 113 may be seated on the upper side of the second motor 112 and may be rotated by receiving power from the second motor 112 . The thread 10 may be seated on the upper side of the rotating body 113, and the thread 10 may be rotated together with the rotating body 113.

The holder 114 may be disposed inside the yarn 10 in the radial direction, and may be in close contact with the yarn 10 by adjusting its length. The holder 114 may be fixed to the rotation body 113 and rotated together with the rotation body 113 . The holder 114 may be in close contact with the thread 10 to fix the thread 10 so that the rotating body 113 and the thread 10 rotate integrally.

The rail 111 may be fixed to the base plate 180 and may support the carrier 115 .

The guider 116 may include a track device 116b spaced apart from one side of the carrier 115 and a bridge 116a connecting the carrier 115 and the track device 116b.

The guider 116 may be moved together with the carrier 115 between a first position P1 and a second position P2 to be described later. When the carrier 115 is moved, the bridge 116a connected to the carrier 115 moves together with the carrier 115, and the track device 116b fixed to the bridge 116a also follows the moving direction of the carrier 115. can be moved together.

The mount 190 includes a first pillar 191 extending in the vertical direction, a second pillar 192 extending in the vertical direction and spaced apart from the first pillar 191, and a first pillar 191 and the second pillar 192. A loop 193 connecting pillars 192, a first tunnel 194 disposed above the loop 193, and a second tunnel 194 disposed above the loop 193 and spaced apart from the first tunnel 194. A tunnel 195 may be included.

The first pillar 191, the second pillar 192, and the loop 193 may be integrally formed, and may have a 'c' shape overall.

The first module 120 includes a first block 121 movably disposed on the mount 190, a first module motor 122 for providing power to move the first block 121, and a first The first arm 123 connecting the block 121 and the first camera 124, the first camera 124 detecting the light reflected from the thread 10, and irradiating light toward the thread 10 It may include a first light 125, a leg 126 extending downward from the first block 121, and a laser sensor 127 seated on the leg 126.

The first block 121 may have a rectangular columnar shape and may move in the left and right directions. The first block 121 may be movably installed on the loop 193 .

The first module motor 122 may apply power to the first block 121 and may be disposed inside the first tunnel 194 .

The first camera 124 and the first light 125 may be fixed to the first arm 123 . The first arm 123 may connect the first camera 124 and the first light 125 to the first block 121 .

The first camera 124 may detect light emitted from the first light 125 toward the room 10 and reflected from the room 10 . The first camera 124 may detect light diffusely reflected from the room 10 .

The first light 125 may be disposed lower than the first camera 124 . The first light source 125 may irradiate light toward the room 10 , and the light diffusely reflected from the room 10 may be projected onto the first light source 125 .

The laser sensor 127 may be disposed below the first camera 124 and the first light 125 . A load of the laser sensor 127 may be supported by the leg 126 . The laser sensor 127 may radiate a laser beam toward the thread 10 and detect laser reflected from the thread 10 .

The second module 130 includes a second block 131 movably disposed on the mount 190, a second module motor 132 that applies power to move the second block 131, and The second arm 133 connecting the block 131 and the second camera 134, the second camera 134 detecting the light reflected from the thread 10, and irradiating light toward the thread 10 It may include a second light 135 that does.

The second block 131 may have a rectangular pillar shape and may move in the left and right directions. The second block 131 may be movably installed on the loop 193 .

The second module motor 132 may apply power to the second block 131 and may be disposed inside the second tunnel 195 .

The second camera 134 and the second light 135 may be fixed to the second arm 133 . The second arm 133 may connect the second camera 134 and the second light 135 to the second block 131 .

The second camera 134 may detect light emitted from the second light 135 toward the room 10 and reflected from the room 10 . The second camera 134 may detect light regularly reflected from the thread 10 .

The second light 135 may be disposed lower than the second camera 134 . The second light 135 may radiate light toward the room 10, and the light specularly reflected from the room 10 passes through the projection plate 135a disposed in the second light 135 to obtain a second camera. (134) can be reached.

Hereinafter, the structure of the conveying device 110 will be described with reference to FIGS. 9A, 9B, 9C, and 9D. 9A is a state diagram in which the carrier 115 and the rail 111 are separated, FIG. 9B is a state diagram of the rail 111 when the carrier 115 reaches the second position P2, and FIG. 9C is a diagram showing the carrier 115 ) is a state diagram of the rail 111 when it reaches the first position P1, and FIG. 9d is a diagram showing the internal structure of the rail 111.

The transport device 110 includes a first motor 118 that powers the carrier 115 to move, a motor housing 117 in which the first motor 118 is accommodated, and a rail 111 forward and backward along the rail 111. It may include a slider 119 that is moved and the carrier 115 is seated.

The motor housing 117 may be disposed inside the mount 190 and may be disposed rearward from the second position P2. The first motor 118 may be accommodated inside the motor housing 117 and may be connected to the slider 119 to move the slider 119 forward and backward.

A carrier 115 may be seated on the upper side of the slider 119, and the carrier 115 may be moved forward and backward along the rail 111 together with the slider 119.

When the carrier 115 reaches the second position P2 , the slider 119 may come into close contact with the motor housing 117 .

When the carrier 115 reaches the first position P1, the slider 119 may come into close contact with the end 111a of the rail 111.

The slider 119 is connected to the slider body 119a on which the carrier 115 is seated, the slider shaft 119b into which the slider body 119a is inserted, and the first motor 118, so that the first motor 118 It may include a screw shaft 119c that is moved forward and backward by rotation of , and a connector 119d connecting the first motor 118 and the screw shaft 119c.

When the first motor 118 rotates in one direction, the screw shaft 119c protrudes forward to push the slider body 119a, and the slider body 119a moves forward along the slider shaft 119b. can When the first motor 118 changes the rotation direction, the screw shaft 119c moves backward to pull the slider body 119a, and the slider body 119a moves backward along the slider shaft 119b. It can be.

Hereinafter, a detailed structure of the carrier 115 will be described with reference to FIG. 10 . 10 is a perspective view of the inside of the carrier 115 .

The carrier 115 includes a second motor 112 seated on the rail 111, a rotating body 113 seated on the upper side of the second motor 112, and a holder 114 connected to the rotating body 113. ) may be included.

The second motor 112 may be movably seated on the rail 111 and may provide power for rotating the rotating body 113 . A DD motor may be used as the second motor 112 .

A wire port 112a protruding outward may be formed in the second motor 112, and the second motor 112 may be electrically connected to the wire 112b through the wire port 112a.

The rotating body 113 may be rotatably seated on the upper side of the second motor 112 . The rotating body 113 may be rotated by receiving power from the second motor 112 .

The holder 114 is coupled to the rotation body 113 and can be rotated by rotation of the rotation body 113 .

A holder motor 114a transmitting power to the holder 114 may be fixed to the outside of the second motor 112 . The holder motor 114a may apply power to the holder 114 so that the length of the holder 114 is variable.

Hereinafter, a detailed structure of the holder 114 will be described with reference to FIG. 11 . 11 is an enlarged view of the holder 114 in the carrier 115 .

The holder 114 includes a holder motor 114a generating power, a pulley 114b connected to the holder motor 114a, a pinion gear 114c rotated by the pulley 114b, and a pinion gear 114c. ) and meshing rack gears 114d and 114e, tracks 114f and 114g for guiding the movement paths of the rack gears 114d and 114e, and a clamp 114h moving in the radial direction and in close contact with the seal 10, 114i) may be included.

The holder motor 114a may be fixed to the outer wall of the second motor 112 and not move, and may rotate the pulley 114b.

The pulley 114b may be wound around the rotating shaft of the holder motor 114a and may be rotated by driving the holder motor 114a.

The pinion gear 114c may be disposed at the center of the carrier 115, and a pulley 114b may be wound thereon. The pinion gear 114c may be rotated by rotation of the pulley 114b.

A plurality of rack gears 114d and 114e may be disposed. The rack gears 114d and 114e include a first rack gear 114d disposed on one side of the pinion gear 114c and a second rack gear 114d disposed on the other side of the pinion gear 114c and facing the first rack gear 114d. A rack gear 114e may be included. The rack gears 114d and 114e may be engaged with the pinion gear 114c and moved in the radial direction by rotation of the pinion gear 114c.

A plurality of tracks 114f and 114g may be arranged. The tracks 114f and 114g include a first track 114f for guiding the movement path of the first rack gear 114d and a second track 114g for guiding the movement path of the second rack gear 114e. can do. The first rack gear 114d may move in the radial direction along the first track 114f, and the second rack gear 114e may move in the radial direction along the second track 114g.

A plurality of clamps 114h and 114i may be disposed. The clamps 114h and 114i may include a first clamp 114h fixed to the first rack gear 114d and a second clamp 114i fixed to the second rack gear 114e. The first clamp 114h may move in a radial direction together with the first rack gear 114d, and the second clamp 114i may move in a radial direction together with the second rack gear 114e.

The clamps 114h and 114i can be moved outward in the radial direction to come into close contact with the seal 10 . The clamps 114h and 114i are in close contact with the inner circumferential surface of the seal 10 to apply force to the seal 10 in a radial direction outward. The thread 10 may be fixed to the rotating body 113 by radially outward force applied by the clamps 114h and 114i, and may be rotated together with the rotating body 113. When the inspection of the seal 10 is completed, the clamps 114h and 114i may be moved radially inward together with the rack gears 114d and 114e to be spaced apart from the inner circumferential surface of the seal 10 . The seal 10 may no longer receive force from the clamps 114h and 114i as the clamps 114h and 114i are spaced apart, and may be placed in a separable state from the carrier 115 .

A process for inspecting the yarn 10 will be described below with reference to FIGS. 12A, 12B, 12C, and 12D. The inspection step of the yarn 10 may proceed in the order shown in FIGS. 12A, 12B, 12C, and 12D.

Referring to FIG. 12A, the carrier 115 before inspection is located at the first position P1. The carrier 115 before inspection may be located at the front end of the rail 111 . The user may seat the seal 10 on the upper side of the carrier 115 disposed at the first position P1. At this time, the first module 120 and the second module 130 may be disposed above the second position P2 while being spaced apart from each other. When the inspection starts, the carrier 115 on which the seal 10 is seated moves along the rail 111 from the first position P1 to the second position P2. While the carrier 115 is moving from the first position P1 to the second position P2, the first module 120 and the second module 130 may be moved closer to each other. While the carrier 115 is being moved from the first position P1 to the second position P2, the holder 114 is opened outward in the radial direction to come into close contact with the seal 10 to fix the seal 10. By adopting a method in which the holder 114 spreads outward in the radial direction until it comes into close contact with the thread 10 and adheres to the thread 10 to fix the thread 10, the thread 10 having various inner diameters can be produced. Since it can be fixed with a single holder 114, the adaptability of the holder 114 to the standard of the yarn 10 can be secured.

Referring to FIG. 12B, the carrier 115 moved along the rail 111 from the first position P1 and reached the second position P2 is stopped at the second position P2. The first module 120 and the second module 130 may irradiate light toward the seal 10 seated on the carrier 115 stopped at the second position P2.

Referring to FIG. 12C , when the carrier 115 stops at the second position P2, the second motor 112 may rotate the rotating body 113. At this time, the thread 10 may be fixed to the rotating body 113 by the holder 114 and may be rotated together with the rotating body 113 . The first module 120 and the second module 130 may continuously irradiate light toward the rotating room 10 and detect light reflected from the room 10 . At this time, the first camera 124 and the second camera 134 irradiate light toward the thread 10, and the laser sensor 127 emits laser light toward the thread 10.

Referring to FIG. 12D , when the inspection of the seal 10 is finished, the carrier 115 returns from the second position P2 to the first position P1 along the rail 111 . The seal 10 seated on the carrier 115 may be moved from the second position P2 to the first position P1 and placed in a separable state from the carrier 115 . The carrier 115 moved from the second position P2 and reached the first position P1 may stop at the first position P1. While the carrier 115 returns from the second position P2 to the first position P1, the first module 120 and the second module 130 may be moved away from each other. While the carrier 115 returns from the second position P2 to the first position P1, the length of the holder 114 is reduced to release the close contact with the yarn 10, thereby releasing the fixed state of the yarn 10. can do.

Hereinafter, referring to FIG. 13 , a principle of detecting a defect in the yarn 10 through the first camera 124 will be described. 13 conceptually illustrates a path of light irradiated from the first light source 125 .

The first light 125 is spaced apart from the 1-1 light 125a disposed below the first camera 124 and the 1-1 light 125a disposed below the first camera 124 It may include the 1-2 lights (125b) to be.

The 1-1 lights 125a and the 1-2 lights 125b may be horizontally spaced apart from each other, and light passes between the 1-1 lights 125a and the 1-2 lights 125b. A space 125s may be formed.

The seal 10 may be located below the 1-1 lights 125a and 1-2 lights 125b at the second position P2.

Each of the 1-1st lighting 125a and the 1-2nd lighting 125b may irradiate light toward the thread 10 reaching the second position P2. Each of the 1-1st lighting 125a and the 1-2nd lighting 125b may emit light in a direction perpendicular to the thread 10 .

The light irradiated to the yarn 10 from each of the 1-1st lighting 125a and the 1-2nd lighting 125b may be regularly reflected from the surface of the yarn 10 and travel in the A direction. The light specularly reflected from the room 10 may travel vertically and be blocked by the 1-1st light 125a or the 1-2nd light 125b to block its upward progress.

When a defect F occurs on the surface of the yarn 10, the light irradiated from the 1-1st illumination 125a or the 1-2nd illumination 125b and reaching the defect F is It may be diffusely reflected from the surface and proceed in the B direction. The light diffusely reflected from the room 10 may be projected onto the first camera 124 after passing through the space 125s in a direction B inclined with respect to the vertical direction. The first camera 124 may detect light diffusely reflected from the surface of the thread 10 . The microcomputer 150 may determine a portion of the surface of the yarn 10 where light is diffusely reflected as a portion where the defect F has occurred. The type of defect F determined through the data on the appearance of the thread 10 collected by the first camera 124 may be 'scratch'. The scratch may mean a defect that is long and thin along the surface of the yarn 10 .

Hereinafter, referring to FIG. 14 , a principle of detecting a defect in the thread 10 through the second camera 134 will be described. 14 conceptually illustrates a path of light irradiated from the second light source 135 .

The second light 135 may be disposed below the second camera 134 and vertically radiate light toward the room 10 reaching the second position P2. A light source (not shown) through which light is emitted may be embedded in the second light 135 .

Light irradiated in the C direction from the second light source 135 may be reflected on the surface of the thread 10 . At this time, the light reaching the smooth surface of the yarn 10 is regularly reflected from the surface of the yarn 10, travels in the D direction, passes through the projection plate 135a, and is projected onto the second camera 134. . On the other hand, the light reaching the defect F of the yarn 10 is diffusely reflected from the surface of the yarn 10 and travels in the E direction, and may not be projected onto the second camera 134 . The second camera 134 may detect light that is regularly reflected from the surface of the thread 10 and passes through the projection plate 135a. The microcomputer 150 may determine a portion of the surface of the yarn 10 that looks dark because light is not regularly reflected as a portion where the defect F has occurred. The microcomputer 150 may determine a portion of the surface of the yarn 10 having a low brightness as a portion where the defect F has occurred. The type of defect F determined through the data on the appearance of the yarn 10 collected by the second camera 134 may be 'crack', 'pinhole', or angularity. The crack may refer to a defect in which a long depression has occurred on the surface of the yarn 10 . The pinhole may refer to a defect in which a hollow hole is dug into the surface of the yarn 10 . The chamfering may mean a defect in which the surface of the yarn 10 is irregularly dug.

The light emitted from the second light 135 may be reflected from the band surface 11a of the thread 10 and projected to the second camera 134 . The microcomputer 150 can measure the value of the bandwidth w based on the light reflected from the band surface 11a and projected to the second camera 134 .

Hereinafter, referring to FIG. 15, the principle of measuring the standard of the yarn 10 through the laser sensor 127 will be described. 15 conceptually shows a path of light irradiated from the laser sensor 127.

The laser sensor 127 may irradiate light in a horizontal direction toward the yarn 10 that has reached the second position P2. Light irradiated from the laser sensor 127 may be laser light.

The laser sensor 127 may include a projection unit 127a that emits light and a light collection unit 127b that collects light emitted from the projection unit 127a and reflected from the thread 10 . The projector 127a may also be referred to as a 'laser light source'. A distance (L) between the projection unit 127a and the light collecting unit 127b may be constant. At this time, as the distance X between the projection unit 127a and the surface of the yarn 10 changes, the angle Y at which the light reflected from the surface of the yarn 10 propagates toward the light collector 127b changes. It changes. The microcomputer 150 may measure a value for the surface standard of the yarn 10 based on a change in the angle (Y) of light reflected from the surface of the yarn 10 and projected to the light collector 127b.

Hereinafter, referring to FIG. 16 , an example of displaying information about the room 10 on the display 160 will be described. FIG. 16 shows an example of displaying information about defects and specifications of the seal 10 on the display 160 .

The display 160 may display information about whether or not the thread 10 is defective and the standard of the thread 10 determined by the microcomputer 150 .

The display 160 may display the standard of the yarn 10 in the first sector J1, and an example of information about the yarn 10 displayed in the first sector J1 may be displayed as M. .

The display 160 may display whether or not the yarn 10 is defective in the second sector J2.

The display 160 may display defects and specifications of the yarn 10 in the third sector J3, and an example of information about the yarn 10 displayed in the third sector J3 is displayed as N. It can be.

The display 160 may display a process of processing information about the appearance of the seal 10 in the fourth sector J4 to the user. The user can recognize the data processing process through the information displayed in the fourth sector (J4). When a defect occurs in the yarn 10, the display 160 may display defect information of the yarn 10 and the location of the defect in the fourth sector J4.

The display 160 may display whether or not the yarn 10 is defective in the fifth sector J5. For example, when there is no defect in the seal 10, the display 160 may display 'OK' in the fifth sector J5. For example, when there is a defect in the seal 10, the display 160 may display 'NG' in the fifth sector J5.

Hereinafter, referring to Figs. 17A, 17B, and 17C, the process by which the yarn 10 is inspected will be comprehensively described. 17A is a schematic diagram of the process of inspecting the yarn 10 macroscopically, FIG. 17B is a schematic diagram of the process of inspecting the yarn 10 from the viewpoint of the carrier 115, and FIG. 17C is a diagram of the yarn 10 The inspection process of is schematized from the viewpoint of the camera assembly.

Referring to FIG. 17A , the inspection step of the yarn 10 may be composed of an arrangement position movement step (S100), data collection and defect determination step (S200), and arrangement position return step (S300) in this order.

In the position shifting step (S100), the carrier 115, the first module 120, the second module 130, and the holder 114 may be moved. The carrier 115 is moved from the first position P1 to the second position P2 along the rail 111, and at the same time, the first module 120 and the second module 130 are moved closer to each other. At the same time that the carrier 115 moves from the first position P1 to the second position P2, the holder 114 spreads in the radial direction and adheres to the seal 10. The carrier 115 can be stopped when reaching the second position P2, and when the carrier 115 is stopped, the holder 114, the first module 120, and the second module 130 are also stopped. can

In the data collection and defect determination step (S200), the rotating body 113 is rotated, and the first module 120 and the second module 130 may irradiate light toward the thread 10. Light and laser irradiated from the first module 120 and the second module 130 toward the room 10 may be reflected from the room 10 and projected to the plurality of cameras 124, 127, and 134, respectively. . The plurality of cameras 124 , 127 , and 134 may collect information about the appearance of the thread 10 based on light reflected from the rotating thread 10 . The microcomputer 150 may determine whether or not the thread 10 is defective based on information collected from the plurality of cameras 124, 127, and 134 and measure the standard.

In the arrangement position return step (S300), the carrier 115, the first module 120, the second module 130, and the holder 114 may be moved. The carrier 115 is moved from the second position P2 to the first position P1 along the rail 111, and at the same time the first module 120 and the second module 130 are moved away from each other. At the same time that the carrier 115 is moved from the second position P2 to the first position P1, the holder 114 is retracted in the radial direction to release the fixation of the thread 10. The carrier 115 can be stopped when reaching the first position P1, and when the carrier 115 is stopped, the holder 114, the first module 120, and the second module 130 are also stopped. can

Referring to FIG. 17B, the carrier 115 may sequentially go through a carrier moving step (S110), a carrier stopping step (S120), a rotating body rotating step (S210), and a carrier returning step (S310).

In the carrier moving step (S110), the carrier 115 may be moved from the first position P1 to the second position P2. The carrier moving step (S110) may be included in the arrangement location moving step (S100).

In the carrier stop step (S120), the carrier 115 can be stopped after reaching the second position (P2). The carrier stop step (S120) may be included in the arrangement location moving step (S100).

In the rotating body rotation step ( S210 ), the rotating body 113 is rotated by driving the second motor 112 to rotate the thread 10 . The rotating body rotation step (S210) may be included in the data collection and defect determination step (S200).

In the carrier return step S310, the carrier 115 may be moved from the second position P2 to the first position P1. The carrier return step (S310) may be included in the arrangement position return step (S300).

Referring to FIG. 17C, the camera assemblies 120 and 130 include a module movement step (S130), a light projection step (S220), a reflected light detection step (S230), a data transmission step (S240), and a module return step (S320). ) can be sequentially roughened.

In the module moving step (S130), the first module 120 and the second module 130 may come closer to each other. The module moving step (S130) may be included in the arrangement position moving step (S100).

In the light projecting step (S220), the first module 120 and the second module 130 may project light toward the room 10 stopped at the second position P2. The light projecting step (S220) may be included in the data collection and defect determination step (S200).

In the reflected light sensing step ( S230 ), the first camera 124 , the second camera 134 , and the laser sensor 127 may detect light reflected from the thread 10 . The reflected light detection step (S230) may be included in the data collection and defect determination step (S200).

In the data transmission step (S240), the first camera 124, the second camera 134, and the laser sensor 127 may transmit the collected data to the microcomputer 150. The microcomputer 150 may determine whether or not the yarn 10 is defective based on the transmitted data and measure the standard of the yarn 10 . The data transmission step (S240) may be included in the data collection and defect determination step (S200).

In the module return step (S320), the first module 120 and the second module 130 may be separated from each other. The module return step (S320) may be included in the arrangement position return step (S300).

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications and implementations are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

10: thread 100: thread inspection device
110: transport device 112: second motor
113: rotating body 114: holder
115: carrier 120: first module
124: first camera 125: first light
127: laser sensor 130: second module
134: second camera 135: second lighting
140: controller 150: microcomputer
160: display 170: frame
180: base plate 190: mount

Claims (10)

a carrier that moves from a first position, stops at a second position, and then returns to the first position;
a first motor for providing power to move the carrier;
a rotating body disposed rotatably on the carrier and in which a seal is seated;
a second motor for rotating the rotating body when the carrier stops at the second position;
a camera assembly that collects data on the appearance of the seal rotated together with the rotating body;
a microcomputer receiving data about the appearance of the seal from the camera assembly and determining whether the seal is defective; and
and a controller controlling the first motor and the second motor so that the carrier is stopped at the second position and the rotating body is rotated.
According to claim 1,
The seal inspection device further comprises a rail extending from the first position toward the second position and on an upper side on which the carrier is seated.
According to claim 1,
Orbital device spaced apart from one side of the carrier; and
Further comprising a bridge connecting the carrier and the track device,
The carrier and the track device,
A seal inspection device that moves together between the first position and the second position.
According to claim 1,
The seal inspection device further comprises a holder disposed radially inside the seal and having a variable length in the radial direction.
According to claim 4,
the holder,
When the carrier is moved from the first position toward the second position, it opens in a radial direction and adheres to the yarn;
When the carrier returns from the second position to the first position, the carrier shrinks in a radial direction.
According to claim 1,
The camera assembly,
a first light emitting light toward the second position;
a second light that is spaced apart from the first light and radiates light toward the second position;
a first camera that senses light emitted from the first light and reflected from the room;
a second camera that senses light emitted from the second light and reflected from the room; and
and a laser sensor spaced apart from the first camera and the second camera, irradiating light toward the second position, and detecting light reflected from the yarn.
According to claim 6,
The first camera is disposed above the first light,
The second camera is disposed above the second light,
The laser sensor is disposed below the first light and the second light.
According to claim 6,
The first camera and the second camera,
When the carriers are moved from the first position to the second position, they are moved closer to each other;
When the carrier is moved from the second position to the first position, the carrier is moved away from each other.
According to claim 1,
Further comprising a rail extending from the first position toward the second position and on which the carrier is seated,
The camera assembly,
A first module spaced apart from one side of the rail and a second module spaced apart from the other side of the rail,
the carrier,
The seal inspection device is moved to the second position and stops between the first module and the second module.
According to claim 9,
Further comprising a holder disposed radially inside the seal and having a variable length;
When the carrier is moved from the first position to the second position,
The first module and the second module are brought closer, and the holder is extended in length to adhere to the thread;
When the carrier is moved from the second position to the first position,
The first module and the second module are far apart, and the length of the holder is reduced.

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