WO2015068294A1

WO2015068294A1 - Slider inspection device of slider assembly device

Info

Publication number: WO2015068294A1
Application number: PCT/JP2013/080372
Authority: WO
Inventors: 秋山　茂; 剛朝野; 達也中川; 茂和田多; 義裕宮本
Original assignee: Ykk株式会社
Priority date: 2013-11-11
Filing date: 2013-11-11
Publication date: 2015-05-14
Also published as: TW201532541A; CN104582521B; TWI510202B; CN104582521A

Abstract

An objective of the present invention is to provide a slider inspection device of a slider assembly device whereby it is possible to inspect in a short time whether sliders with different tab shapes and tab weights are good or defective. Provided is a slider inspection device, which displaces a tab (2) of a slider (6) which is assembled with a slider assembly device in a non-loaded attitude and a downward loaded attitude, photographs the slider (6) when the tab (2) is in each of the states with a camera (38), image processes images photographed thereby and detects a location of a hook lever (3) of the slider (6), compares the actual detected locations of the hook lever (3) detected thereby with defined locations of the hook lever (3), and determines that the slider is good if the locations match, and defective if the locations do not match.

Description

Slider inspection machine for slider assembly machine

The present invention relates to an apparatus for inspecting a slider that has been assembled by a slider assembly machine that assembles a slider for a slide fastener.

A slider for a slide fastener is disclosed in Patent Document 1.
The slider is assembled by attaching the handle, claw hook, leaf spring, and cover to the body in order, and then processing and tightening the cover.
This slider is a slider that has an automatic stop function. When the pawl stop pawl protrudes from the nail hole of the fuselage into the element guide part, the pawl stops when the pawl pawl bites into the fastener element. It becomes a state.
When the pawl is in a non-stop position where the pawl is moved against the spring force of the leaf spring by operating the pull handle and the pawl is pulled out of the element guide, the pawl pawl is separated from the fastener element, and the slider It becomes a non-stop state.

Since the slider having the automatic stop function described above is assembled by the slider assembly machine, any one of the pull handle, the claw hook, the leaf spring, and the cover is not assembled, or the slider that has been assembled due to incorrect assembly has an automatic stop function. It may become a defective product without.
Therefore, Patent Document 2 discloses a slider inspection apparatus that inspects whether a slider is a good product or a defective product.
This slider inspection device swings the slider's handle up and down, detects the amount of up / down swing of the handle with the detection lever and the detection unit, and determines that the handle's vertical swing is different from the non-defective product. I try to detect it.

JP 2009-95370 A Japanese Patent Laid-Open No. 7-11905

Conventional slider inspection devices are defective because the amount of vertical swing of the slider's handle is different from the non-defective product, so when inspecting sliders with different shape and weight of the handle, the position of the detection bar, etc. Need to be adjusted, and it takes time to adjust.

The present invention has been made to solve the above-described problems, and its purpose is to provide a slider inspection apparatus for a slider assembly machine that can inspect a non-defective product or a defective product for sliders having different handle shapes and handle weights in a short time. It is to be.

The present invention is a slider inspection device of a slider assembly machine for inspecting a slider assembled by a slider assembly machine,
The slider 6 includes a body 1, a handle 2, a claw hook 3, a leaf spring 4 and a cover 5.
The body 1 has an element guide portion 1a through which a fastener element can be inserted, and a claw hole 1e communicating with the element guide portion 1a on the upper surface of the body 1 on which the handle 2 is placed.
The claw hook 3 has a stop posture in which the stop claw 3a of the claw hook 3 protrudes from the claw hole 1e of the body 1 to the element guide portion 1a, and the stop claw 3a of the claw hook 3 has come out of the element guide portion 1a of the body 1. Assemble to the fuselage 1 so that it can be displaced over the non-stop posture,
The leaf spring 4 holds the claw hook 3 in a stopped posture,
The puller 2 is held in a no-load posture where the puller 2 is placed on the upper surface of the body 1 when no external force is applied to the puller 2, and the puller 2 is downward when the puller 2 is loaded with a downward external force. Assemble to the fuselage 1 so as to be displaced to the load posture of
The slider 6 is configured such that when the handle 2 is in the no-load posture, the claw hook 3 is in a stop posture, and when the handle 2 is in the load posture, the claw rod 3 is displaced in a non-stop posture,
An external force loading means for applying a downward external force to the puller 2 and releasing a downward external force;
A camera 38 for photographing the slider 6 when the puller 2 is in an unloaded posture, when the puller 2 is displaced from the unloaded posture to the loaded posture, and when the loaded handle 2 is returned to the unloaded posture;
The image taken by the camera 38 is subjected to image processing to detect the actual position of the fingernail 3, and is defined by the actual position of the fingernail 3, the stop posture of the fingernail 3, and the non-stop posture of the fingernail 3. The slider inspection apparatus of the slider assembling machine is characterized in that a non-defective product and a defective product of the slider 6 are determined based on a result of comparing the positions of the claw hooks 3.

In the slider inspection apparatus of the slider assembling machine of the present invention, the camera 38 images a part 3b of the claw hook 3 from the opening 5c of the cover 5,
The image taken by the camera 38 is subjected to image processing to detect the position of the actual portion 3b of the nail plate 3,
The actual position of the part 3b of the toothpick 3 can be compared with the position of the part 3b of the toothpick 3 defined by the stopping posture of the toothpick 3 and the non-stopping posture of the toothpick 3.

In the slider inspection apparatus of the slider assembling machine according to the present invention, the external force loading means includes a pull-down presser 41 that pushes the pull-down handle 2 placed on the upper surface of the body 1 downward to make the pull-down handle 2 downward. It can be provided with a moving mechanism for moving the handle presser 41.

In the slider inspection apparatus of the slider assembling machine according to the present invention, the moving mechanism includes a movable body 31 that moves up and down between an upper position and a lower position, and a puller foot presser 41 attached to the movable body 31. The presser 41 faces the handle 2 assembled to the slider 6 in the vertical direction,
When the movable body 31 is in the upper position, the gripper presser 41 is disposed above the handle 2, the puller presser 41 is separated from the handle 2, and when the movable body 31 is at an intermediate position between the upper position and the lower position. The handle presser 41 is in contact with the handle 2, and when the movable body 31 is in the lower position, the handle presser 41 pushes down the handle 2.
The camera 38 can photograph the slider 6 when the movable body 31 is at the intermediate position, at the lower position, and when the movable body 31 returns from the lower position to the intermediate position.

In this way, in the slider assembly machine in which the body 1 is set on the turntable 10 that rotates intermittently, and the cover 5 having the handle 2, the hook 3, and the leaf spring 4 is sequentially assembled, the turntable 10 is rotated intermittently. It is possible to prevent the puller 2 from interfering with the puller presser 41.

The slider inspection apparatus of the slider assembly machine according to the present invention includes a slider inspection device that detects the intermediate position and the lower position of the movable body 31 that is moved by the moving mechanism, and detects an intermediate position detection signal and a lower position detection signal. Movable body position detecting means 60 for outputting
The camera 38 can be photographed with the intermediate position detection signal output from the movable body position detection means 60, the lower position detection signal, and the intermediate position detection signal output next to the lower position detection signal.

In this way, when the movable body 31 is at the intermediate position, at the lower position, or when the movable body 31 is returned to the intermediate position, the camera 6 can photograph the slider 6 with high accuracy.

In the slider inspection apparatus of the slider assembly machine of the present invention, the movable body 31 is attached with a camera 38 and a positioning member for positioning the camera 38 in the vertical direction.
When the movable body 31 is in the upper position, the camera 38 is not positioned by the positioning member, and the camera 38 is in the standby position above the slider 6.
When the movable body 31 moves from the upper position to the intermediate position, the camera 38 is positioned by the positioning member, and the camera 38 is positioned at the photographing position facing the slider 6.
When the movable body 31 moves from the intermediate position to the lower position, the camera 38 is held at the photographing position by the positioning member, and the puller presser 41 can move downward together with the movable body 31 to push down the puller 2.

In this way, since the camera 38 can be moved by moving the movable body 31, the structure for moving the movable body 31 and the camera 38 is simple.
Further, it is possible to prevent the slider 6 from interfering with the camera 38 in the slider assembling machine using the turntable 10.

The slider inspection apparatus of the slider assembly machine of the present invention attaches a positioning member and a camera attachment member 36 to the movable body 31 so as to be movable in the vertical direction.
The positioning member and the camera mounting member 36 are moved downward by a spring, and the lower part of the positioning member and the lower part of the camera mounting member 36 protrude downward from the movable body 31,
A camera 38 is attached to the lower part of the camera attachment member 36,
When the movable body 31 moves from the upper position to the lower position, the positioning member and the camera mounting member 36 move downward together with the movable body 31,
When the movable body 31 moves to the intermediate position, the camera 38 is positioned by the positioning member, the camera 38 is positioned at the shooting position,
When the movable body 31 moves from the intermediate position to the lower position, the spring extends so that the positioning member and camera mounting member 36 do not move, and the camera 38 can be held at the photographing position.

In the slider inspection apparatus of the slider assembly machine of the present invention, the slider 6 includes a cover 5 having a leaf spring 4.
The image captured by the camera 38 is subjected to image processing to detect the actual position and thickness of the leaf spring 4 and the actual height of the cover 5, respectively, and the actual position, thickness, and cover 5 of the leaf spring 4. The result of comparing the position and thickness of the leaf spring 4 and the height of the cover 5 with the specified height can be taken into consideration for the determination of the non-defective product and the defective product of the slider 6.

In this way, the non-defective product and the defective product of the slider 6 can be determined with high accuracy.

According to the present invention, a non-defective product or a defective product of the slider 6 is determined by detecting the position of the nail plate 3 from the image obtained by photographing the slider 6 and comparing it with the position of the nail plate 3 defined. In the case of the slider 6 having a different weight of the pull handle 2, it is only necessary to change the position of the specified claw hook 3, so that a non-defective product or a defective product can be inspected in a short time.

It is a disassembled perspective view of the slider assembled with the slider assembly machine of this invention. It is a longitudinal cross-sectional view of the assembled slider. It is a schematic plan view of the slider assembly machine of this invention. It is a side view of the slider assembly machine of this invention. FIG. 5 is an enlarged plan view of a portion where a handle is assembled to the trunk in FIG. 4. FIG. 5 is an enlarged side view of the slider with the handle in FIG. 4 in an unloaded state. FIG. 5 is an enlarged side view of the slider with the handle in the loaded state in FIG. 4. It is an enlarged side view of the slider test | inspection apparatus part of a slider assembly machine. It is a right view front view of FIG. It is a picked-up image by the camera of the slider in which the handle is in an unloaded state. It is a picked-up image by the camera of the slider in which the handle is in a loaded state.

As shown in FIG. 1, the slider assembled by the slider assembly machine of the present invention has a body 1, a handle 2, a hook hook 3, a leaf spring 4, and a cover 5. With the slider assembling machine, the handle 2 and the claw hook 3 are sequentially assembled to the body 1, the cover 5 with the leaf spring 4 is assembled to the body 1 so as to cover the claw 3, and then the cover 5 is crimped to the body 1. As a result, the slider shown in FIG. 2 is assembled.

The fuselage 1 has an element guide portion 1a through which a fastener element can be inserted, and has a front attachment portion 1c, a rear attachment portion 1d, and a claw hole 1e opened in the element guide portion 1a on the upper blade 1b.
The pull handle 2 has a link portion 2a on one side in the front-rear direction and a handle portion 2b on the other side in the front-rear direction. The handle 2 is mounted on the upper wing plate 1b of the fuselage 1 with the pivot 2c of the link part 2a positioned between the front mounting part 1c and the rear mounting part 1d of the fuselage 1.
The claw hook 3 straddles the pivot 2c of the handle 2 between the front mounting part 1c and the rear mounting part 1d of the body 1, and the stop claw 3a of the claw hook 3 projects from the claw hole 1e to the element guide part 1a. Assemble to.
The leaf spring 4 is attached to the cover 5 in advance, and is placed and attached across the front attachment portion 1c and the rear attachment portion 1d.
The cover 5 is attached to the upper wing plate 1b of the fuselage 1 by fitting it to the front mounting portion 1c and the rear mounting portion 1d, and is fixed to the front mounting portion 1c and the rear mounting portion 1d by crimping the left and right side surfaces of the cover 5. And attach.

As shown in FIG. 2, when the slider 6 in which a plurality of parts are assembled is in an unloaded state where no external force is applied to the handle 2, the leaf spring 4 contacts the claw rod 3, and the claw rod 3 stops at the leaf spring 4. The claw 3a is held in a stop posture protruding from the claw hole 1e to the element guide portion 1a, and the stop claw 3a bites into a fastener element (not shown) so that the slider 6 is stopped so as not to move along the fastener element.
The handle 2 in an unloaded state has a no-load posture in which the pivot 2c is in contact with the claw hook 3 and the handle 2 is placed on the upper blade 1b (that is, the upper surface) of the fuselage 1.
By holding the handle portion 2b of the handle 2 and pulling it in the moving direction of the slider 6, the pivot 2c of the handle 2 moves upward, the claw hook 3 deforms the leaf spring 4, and the claw hook 3 moves upward. By swinging, the claw hook 3 assumes a non-stop posture in which the stop claw 3a is pulled out from the element guide portion 1a. Thereby, the slider 6 will be in the non-stop state which can move along a fastener element.
By releasing the hand from the handle portion 2b of the pull handle 2, the claw hook 3 returns to the stop posture shown in FIG. 2 by the spring force of the leaf spring 4, and the slider 6 is stopped.
That is, the slider has an automatic stop function.

As schematically shown in FIG. 3, the slider assembling machine of the present invention has a component supply device, for example, a body supply device 20, a handle, around a turntable 10, which is a rotating disk intermittently rotated in the direction of an arrow at every predetermined angle. A supply device 21, a claw supply device 22, a cover supply device 23, a cover crimping device 24, a slider inspection device 25, and a slider discharge device 26 are attached at intervals in the rotation direction of the turntable 10.
The turntable 10 has a disk shape, and has a plurality of body support portions, for example, storage recesses 10a, which are supported at the periphery of the turntable 10 so as not to move the slider body 1 at regular intervals in the rotation direction.

The above slider assembly machine assembles the slider as follows.
The turntable 10 is intermittently rotated so that one storage recess 10a faces the body supply device 20, and the body 1 is supplied from the body supply device 20 to the storage recess 10a and set.
Thereafter, the storage recess 10a in which the body 1 is set by rotating the turntable 10 is made to face the handle supply device 21, and the handle 2 is supplied and assembled to the body 1 by the handle supply device 21.
In the same manner, the hook 3 is supplied and assembled to the body 1 by the hook supply device 22, and the cover 5 to which the leaf spring 4 is attached is supplied and assembled to the body 1 by the cover supply device 23.
Then, the cover 5 is crimped to the body 1 by the cover crimping device 24 to complete the assembly to obtain a slider.
The slider inspection device 25 detects the assembled slider, and the slider discharge device 26 sorts and discharges the non-illustrated non-illustrated product and unsatisfactory product from the storage recess 10a of the turntable 10.

As shown in FIG. 4, the turntable 10 includes a disc 12 that is rotatably attached to the assembly machine main body 11 around the vertical axis, and a plurality of body sets 13 that are attached around the disc 12 at intervals in the circumferential direction. Each body set body 13 has a housing recess 10a that is fitted and set so as not to move so that the body 1 does not move. The housing recess 10a is open to the upper surface and the outer peripheral side surface. Become.
A handle receiving base 10b is attached to the outer periphery of the storage recess 10a of each body set body 13.
In FIG. 4, two body set bodies 13 are shown for easy understanding, but actually three or more body set bodies 13 are attached as shown in FIG.
The disk 12 and the body set body 13 may be integrated.

As shown in the left side of FIG. 4 and FIG. 5, the body 1 is set by being fitted into the storage recess 10 a.
The handle 2 is placed on the set body 1 on the upper wing plate 1b (upper surface) so that the link portion 2a fits the front mounting portion 1c, and the handle portion 2b is formed by the body 1 and the body set body 13. Assemble also so that it protrudes to the outer peripheral side.
Since the handle 2 is assembled in this way, the handle 2 may fall from the body 1 due to the weight of the handle portion 2b. Therefore, a handle holder 10b is provided, and the handle portion 2b of the handle 2 is in contact with the handle holder 10b. Thus, the handle 2 is prevented from falling from the body 1.

The assembled slider 6 is a slider having a body 1, a handle 2, a claw hook 3, a leaf spring 4, and a cover 5 as shown in FIG. As shown in the right side of FIG. 4 and FIG. 6, when the handle 2 is in an unloaded state in which no external force is applied, the handle 2 is in the unloaded posture placed on the upper surface of the body 1 as described above, The hand portion 2 b is substantially horizontal and protrudes to the outer peripheral side from the body 1 and the cover 5.
When the handle 2 is in a no-load posture placed on the body 1, one surface or a part of the handle 2 is in contact with the upper wing plate 1 b of the body 1, but the stop claw 3 a of the claw hook 3 is connected to the element guide portion 1 a. It projects and the nail fold 3 is in a stop posture.
When a downward external force that pushes the handle 2b of the handle 2 downward is applied and the handle 2 is in a loaded state, the handle 2 has a portion in contact with the upper surface of the body 1 as a fulcrum as shown in FIG. The handle portion 2b moves downward, and the link portion 2a moves upward, resulting in a downward load posture. That is, as in the case where the handle 2 is pulled with the handle 2b, the load 2 is in a downward load posture in which the pivot 2c of the handle 2 is moved upward.
When the handle 2 is in a loaded posture, one side or a part of the handle 2 contacts the upper wing plate 1b of the fuselage 1, but the locking claw 3a of the claw hook 3 comes out of the element guide portion 1a, and the claw hook 3 is not Stop posture.
As shown in FIG. 2, when viewed from the side, the thickness of the handle 2 is the same from the handle portion 2b to the link portion 2a. However, the thickness of the handle 2 is different from the handle portion 2b toward the link portion 2a. It may be a form or a form with unevenness.

The inspection of the non-defective product and the defective product of the slider 6 will be described.
When the handle 2 of the slider 6 is in an unloaded state in which no external force is applied, the claw hook 3 does not contact the leaf spring 4 in the unloaded posture where the handle 2 is placed on the upper surface of the body 1 as shown in FIG. Furthermore, the stop claw 3a of the claw hook 3 protrudes from the claw hole 1e of the body 1 to the element guide portion 1a, and the claw hook 3 is in the stop posture.
When a downward external force is applied to the handle portion 2b of the handle 2 from the state of FIG. 6 and the handle 2 is pushed downward to place the handle 2 in a loaded state, the handle 2 is loaded downward as shown in FIG. Become posture. As a result, the pivot 2c of the handle 2 moves upward, the claw hook 3 comes into contact with the leaf spring 4, deforms the leaf spring 4 and moves upward, and the stop pawl 3a moves to the element guide portion 1a of the body 1. The nail hook 3 is in a non-stop position.
When the load of the downward external force that pushes the handle 2b of the handle 2 is released from the state of FIG. 7, the leaf spring 4 returns to the original state, and the stop claw 3a of the claw hook 3 is the element guide 1a of the body 1. The nail folds 3 are in a stopped posture.
In this way, the slider is assumed to be non-defective if the claw hook 3 is in a stopped posture, a non-stopped posture, or a stopped state when the handle 2 is in a no-load state, a loaded state, or a no-load state.

Suppose that the slider in which the claw hook 3 does not enter the stop position, the non-stop position, and the stop state when the handle 2 is in the no-load state, the load state, and the no-load state as described above is a defective product.

As shown in FIGS. 6 and 7, since the stop claw 3a of the claw hook 3 of the slider 6 is not visible from the outside, it is determined from the outside whether the stop claw 3a protrudes from the element guide portion 1a of the body 1 or has come out. It is impossible to confirm whether the claw hook 3 is in a stop posture or a non-stop posture.
In the present invention, the cover 5 has a downward U-shape as shown in FIG. 1, and has openings 5 c that open to the lower surface on both the left and right sides, and between the cover 5 and the upper wing plate 1 b (upper surface) of the fuselage 1. Since the claw hook 3 in the stopped position and the claw hook 3 in the non-stop position are partly visible from the outside through the above-mentioned opening, At this position, it is judged whether the stop pawl 3a protrudes from the element guide portion 1a of the fuselage 1 or the non-stop position where it comes out, and the slider 6 is inspected for non-defective products and defective products.
That is, the present invention performs a nail position inspection.

If the slider 6 is a non-defective product, the portion 3b that can be seen from the outside of the hook 3 is in a low position when the hook 3 shown in FIG. 6 is in a stopped position, and when the hook 3 shown in FIG. Since it is a high position, the specified position of the part 3b of the above-mentioned claw rod 3 when the claw rod 3 of the slider 6 which is a non-defective product is in the stop posture and the claw rod 3 is in the non-stop posture is defined in advance. When the inspection is performed, the actual position of the part 3b of the claw hook 3 is detected, and if the detected position matches the specified position, the product is determined to be a good product, and if not, the product is determined to be a defective product.

The present invention detects not only the position of the portion 3b of the claw hook 3 of the slider 6, but also the height of the cover 5 of the slider 6, the position and thickness of the leaf spring 4, and matches the specified height, specified position, and specified thickness. If it does not match, the product is regarded as a defective product.
That is, the present invention performs cover height inspection, leaf spring position inspection, and leaf spring thickness inspection.
In the above description, “match” and “mismatch” include defining an allowable range, matching within the allowable range, and mismatching when exceeding the allowable range.

Since it is difficult to visually check the claw position of the slider 6, the cover height inspection, the leaf spring position inspection, and the leaf spring thickness inspection, the present invention takes a picture of the slider 6 with a camera and displays the image on the image. Based on the position and height.

The slider inspection device 25 will be described with reference to FIGS.
The assembly machine body 11 includes a non-rotating plate 14 positioned above the disk 12.
The attachment member 30 attached to the plate 14 includes a guide 30a, and a movable body 31 is provided along the guide 30a so as to be movable in a vertical direction that is a direction approaching and separating from the slider 6.
A cylinder 32 is attached to the attachment member 30, and a movable rod (piston rod) 32 a of the cylinder 32 is connected to the movable body 31.
The movable body 31 moves up and down by extending and retracting the movable rod 32a of the cylinder 32. The movable body 31 is a moving mechanism that moves a handle presser 41 to be described later.

A pair of left and right housings 33, which are positioning members, are attached to the movable body 31 so as to be movable in the vertical direction. The pair of left and right housings 33 are fixed to a plate 34 that is spaced apart on both sides in the left and right direction, which is the rotation direction of the turntable 10, and protrudes above the upper surface of the movable body 31.
A camera mounting member 35 and an illumination mounting member 36 are mounted on the left and right sides of the plate 34 facing downward.
By attaching a tension spring 37 across the plate 34 and the movable body 31, the plate 34 is in contact with the upper surface of the movable body 31, and the pair of housing 33, camera mounting member 35, and illumination mounting member 36 are connected from the lower surface of the movable body 31. Also protrudes downwards.

A camera 38 is attached to the lower part of the camera attachment member 35 so as to protrude to the left and right sides of the body set body 13 and to face one side surface of the slider 6 in the left-right direction.
An illumination 39 is attached to the lower part of the illumination attachment member 36 so as to protrude from the body set 13 to the other side of the body set 13 and toward the other side surface of the slider 6 in the left-right direction.

The pair of left and right housings 33 project downward from the lower surface of the movable body 31 and face both sides of the slider 6 on the upper surface of the body set body 13 in the left-right direction. A stopper 40 such as a screw is attached to the bottom of each housing 33 so that the height can be adjusted. When the stopper 40 comes into contact with the upper surface of the body set body 13, the camera 38 and the illumination 39 are positioned in the vertical direction so as to face the slider 6 in the left-right direction.
That is, the housing 33 having the stopper 40 is a positioning member that positions the camera 38 and the illumination 39 so as to coincide with the slider 6 in the left-right direction.

The movable body 31 is provided with a handle presser 41 facing the handle portion 2b of the handle 2 of the slider 6 in the vertical direction.
The handle presser 41 moves up and down integrally with the movable body 31. As a result, the puller presser 41 serves as an external force loading means for pressing and releasing the puller 2 downward, applying a downward external force to the puller 2 and releasing a load of the downward external force.

Next, the inspection operation of the slider 6 will be described.
When the inspection operation is not performed, the movable rod 32a of the cylinder 32 is contracted to move the movable body 31 to the upper position shown in FIGS.
When the movable body 31 is in the upper position, the plate 34 is in contact with the upper surface of the movable body 31, and the turntable 10 rotates intermittently at the standby position where the camera 38, the illumination 39 and the stopper 40 are above the upper surface of the body set body 13. At this time, it does not interfere with the slider 6.
The handle presser 41 is located above the camera 38, the illumination 39, and the stopper 40.

At the start of inspection, the illumination 39 is turned on and the movable rod 32a of the cylinder 32 is extended to move the movable body 31 downward from the upper position. The pair of housings 33, the camera 38, and the illumination 39 are moved downward together with the movable body 31. Move to.
When the movable body 31 descends from the upper position and moves to a predetermined intermediate position, the stoppers 40 attached to the pair of housings 33 come into contact with the upper surface of the body set 13. As a result, the camera 38 is positioned at the photographing position facing one side of the cover 5 portion of the slider 6 and the illumination 39 is positioned at the position facing the cover 5 portion on the other side of the slider 6 in the left-right direction. In the left-right direction of the slider 6, a camera 38 is disposed on one side and an illumination 39 is disposed on the other side.
At this time, as shown by the phantom line in FIG. 6, the puller foot press 41 contacts the handle part 2 b of the puller 2, but does not push the handle part 2 b downward.
That is, when the movable body 31 is in the intermediate position, the handle 2 of the slider 6 is in an unloaded state, and the handle 2 is in an unloaded posture placed on the upper surface of the body 1.
In the above description, the intermediate position may be any of a position closer to the upper position between the upper position and the lower position, a position closer to the lower position, and a central position between the upper position and the lower position. That is, the intermediate position is a position between the upper position and the lower position.

When the movable body 31 is lowered from the upper position and the camera 38 and the illumination 39 are arranged in the left and right direction of the slider 6 at a predetermined intermediate position, the slider 6 is photographed by the camera 38.
As shown in FIG. 10, the image of the cover 5 of the slider 6 is brighter in the outer portion than the outer surface 5 a and the inner portion 5 b than the outer surface 5 a of the cover 5. The leaf spring 4 becomes dark. That is, the other side surface of the slider 6 is irradiated with light, and the image is captured by the camera 38 from one side surface of the slider 6, so that the above-described image is obtained.
Further, since the handle 2 is substantially horizontal, the portion 3b of the claw hook 3, the leaf spring 4 and the cover 5 can be photographed satisfactorily without the link portion 2a of the handle 2 being in the way.

The position of the inspection portion 3A of the nail cage 3 is detected by performing image processing on the above-described image with an image processing apparatus (not shown). For example, a reference position 6A is set on the body 1, and the position of the inspection portion 3A of the nail cage 3 is detected by a distance H1 from the reference position 6A to the inspection portion 3A.
The detected position of the inspection part 3A of the nail body 3 (actual position of the nail hook 3) is compared with the position of the inspection part 3A of the nail body 3 set in advance (the position of the specified nail hook 3).

If the actual position of the hook 3 does not match the position of the specified hook 3, the stop hook 3a of the hook 3 has not protruded from the element guide 1a, so it is determined that the hook 3 is not in the stop posture.
If the actual position of the hook 3 coincides with the position of the specified hook 3, the stop hook 3a of the hook 3 protrudes from the element guide 1a, so that it is determined that the hook 3 is in the stop posture.
Thereby, when the handle 2 is in a no-load state, it can be inspected whether the claw hook 3 has a stop posture.

The height of the cover 5 is detected by performing image processing on the image shown in FIG. For example, the height of the cover 5 is determined by detecting the positions of the

inspection portions

5A and 5A on both sides in the front-rear direction on the outer surface 5a of the cover 5 as the distance from the reference position 6A.
Determination is made by comparing the detected positions of the

inspection portions

5A and 5A of the cover 5 (actual height of the cover 5) with the preset positions of the

inspection portions

5A and 5A of the cover 5 (the height of the specified cover 5). To do.

If the actual height of the cover 5 matches the height of the specified cover, it is determined that the cover 5 is correctly assembled to the body 1, and if it does not match, it is determined that the cover 5 is not correctly assembled.
For example, when a foreign object is interposed between the body 1 and the cover 5, the actual height of the cover 5 is higher than the height of the cover 5 that is defined.
If the height of the cover 5 in the front-rear direction is the same, it is determined that the cover 5 is attached in a horizontal posture, and if it is different, it is determined that the cover 5 is attached in a posture inclined in the front-rear direction.

The position of the leaf spring 4 is detected by image processing the image shown in FIG. For example, the positions of the

inspection portions

4A and 4A on both sides in the front-rear direction of the leaf spring 4 are detected as the distance from the reference position 6A.
The detected positions of the

inspection portions

4A, 4A of the leaf spring 4 (actual leaf spring position) are compared with the positions of the

inspection portions

4A, 4A of the previously defined leaf spring 4 (position of the prescribed leaf spring 4). judge.

If the actual position of the leaf spring 4 coincides with the position of the specified leaf spring 4, it is determined that the leaf spring 4 is correctly assembled, and if not, it is determined that the leaf spring 4 is not correctly assembled.
For example, if the leaf spring 4 is not placed on one or both of the front and

rear attachment portions

1c and 1d of the body 1, the position of the leaf spring 4 is shifted downward with respect to a specified position, and the front and rear attachment portions If foreign matter is present between 1c, 1d and the leaf spring 4, the position of the leaf spring 4 becomes higher than the defined position.

The thickness of the leaf spring 4 is detected by processing the image of FIG. For example, the thickness of the inspection portion 4B in the middle in the front-rear direction of the leaf spring 4 is detected.
The detected thickness of the inspection portion 4B of the leaf spring 4 (actual thickness of the leaf spring 4) is compared with the thickness of the inspection portion 4B of the previously defined leaf spring 4 (the thickness of the prescribed leaf spring 4). Judgment.

If the actual thickness of the leaf spring 4 matches the prescribed thickness of the leaf spring 4, it is determined that the leaf spring 4 is horizontal in the width direction of the leaf spring 4, and if not, the leaf spring 4 is It determines with it being diagonal in the width direction.

When the movable rod 32a of the cylinder 32 is further extended from the state in which the stopper 40 is in contact with the upper surface of the body set body 13, the movable body 31 is lowered from the upper position while the tension spring 37 is extended, and the slider 6 is moved in the left-right direction. It moves further downward from a predetermined intermediate position where 38 and the illumination 39 are arranged. As a result, the gripper presser 41 pushes the handle 2b of the puller 2 downward, but the stopper 40 is in contact with the upper surface of the body set 13, and the pair of housings 33 do not move downward. Held in position.
Then, when the movable body 31 moves to the specified lower position, the handle 2 is pushed downward by the puller presser 41, the puller 2 is loaded with a downward external force, and the puller 2 has a downward load posture shown in FIG. Become.

At this time, since the handle holder 10b is in the way, the handle holder 10b is moved downward as shown in FIG.
For example, as shown in FIGS. 8 and 9, the operating rod 50 is connected to the handle holder 10 b, and the hook-shaped piece 52 is moved downward by the cylinder 51 provided in the assembly machine body 11 to lock the operating rod 50. The handle 50b is moved downward by engaging with the piece 50a.

The slider 6 is photographed by the camera 38 when the movable body 31 is at the lower position.
The image is as shown in FIG.
Since the puller 2 has a downward load posture, the link part 2a of the puller 2 does not get in the way and can photograph well.

By performing image processing on the image shown in FIG. 11, the position of the inspection portion 3A of the nail fold 3 is detected as the distance H2 from the reference position 6A as described above.
Determination is made by comparing the position of the actual nail claw 3 that is the position of the inspection portion 3A of the detected nail cage 3 with the position of the defined nail cage 3 that is the position of the inspection portion 3A of the nail claw 3 that is defined in advance.

If the actual position of the hook 3 matches the position of the specified hook 3, it is determined that the stop hook 3a of the hook 3 has come out of the element guide portion 1a and that the hook 3 is in a non-stop position, and there is a mismatch. For example, it is determined that the pawl 3 is not in a non-stop position without the stop pawl 3a of the pawl 3 coming out of the element guide portion 1a.
Thereby, when the handle 2 is in a loaded state, it can be inspected whether the nail hook 3 is in a non-stopping posture.

By performing image processing on the image shown in FIG. 11, the actual height of the cover 5 is detected in the same manner as described above.
Determination is made by comparing the detected actual height of the cover 5 with the specified height of the specified cover 5.

If the actual height of the cover 5 matches the height of the specified cover 5, it is determined that the cover 5 is firmly crimped to the body 1 and does not move. It is determined that the tightening is uncertain or has been moved upward by the handle 2 without being crimped.

After the movable body 31 reaches the defined lower position, when the movable body 31 is moved upward by reducing the movable rod 32a of the cylinder 32, the puller foot presser 41 is moved upward together with the movable body 31, so that the pusher foot presser is moved. 41 is separated from the handle portion 2b of the handle 2.
Then, by further reducing the movable rod 32a of the cylinder 32, the tension spring 37 is contracted, and the pair of rods 33, the camera 38, and the illumination 39 are moved upward together with the movable member 31 to the above-described upper position.

In this way, the movable body 31 is moved upward from the defined lower position, and the body 1 is imaged again by the camera 38 when the movable body 31 reaches the defined intermediate position.
This image is the same as the image shown in FIG. 10, and this image is processed to detect the position of the inspection portion 3A of the nail cage 3, the position of the inspection portion 4A of the leaf spring 4, and the thickness of the inspection portion 4B. Judge by comparing with the specified position and width.
Thereby, when the handle 2 is changed from the loaded state to the unloaded state, it can be inspected whether the claw hook 3 is in the stop posture.

If the actual position of the hook 3 coincides with the position of the specified hook 3, the hook 3 is restored to its original state by the leaf spring 4, the stop hook 3 a protrudes to the element guide portion 1 a, and the hook 3 stops. If it is determined that the posture is inconsistent and the leaf spring 4 is not elastic enough, or the leaf spring 4 is not assembled, the pawl 3a of the claw body 3 does not protrude into the element guide portion 1a, and the nail plate 3 is determined not to be a stop posture.
The actual position and thickness of the leaf spring 4 are determined as described above based on the position and thickness matching and mismatching of the leaf spring 4 defined.

As described above, the puller 2 is in an unloaded state, the puller 2 is in a loaded state, and the puller 2 is in an unloaded state from the loaded state. The determined slider 6 is a non-defective product, and the slider 6 that is determined not to be correctly assembled even once is a defective product.

As described above, in order to photograph the slider 6 with the camera 38 in synchronization with the timing of the intermediate position specified by the movable body 31 and the time of the specified lower position, as shown in FIGS. The movable body position detecting means 60 for detecting the intermediate position and the lower position of the movable body 31 is provided, and the camera 38 is photographed by the detection signal, for example, the shutter is operated, so that The slider 6 can be photographed with the camera 38 at the same timing.

As shown in FIGS. 8 and 9, the movable body position detecting means 60 is provided on the detector 61 attached to the movable body 31 and the bracket 62 attached to the attachment member 30 so as to be spaced apart in the vertical direction. A first sensor 63 and a second sensor 64 that output a detection signal by detecting 61 are provided.
When the movable body 31 is at the intermediate position, the first sensor 63 detects the detector 61 and outputs an intermediate position detection signal. When the movable body 31 is at the lower position, the second sensor 63 detects the detector 61 and outputs a lower position detection signal.

The intermediate position detection signal of the first sensor 63 and the lower position detection signal of the second sensor 64 are input to a controller (not shown). The controller outputs a photographing signal of the camera 38 when the detection signal of the first sensor 63 and the detection signal of the second sensor 64 are input, and the camera 38 photographs the slider 6.

By doing in this way, the slider 6 can be accurately photographed by the camera 38 when the movable body 31 is in the intermediate position, and the slider 6 can be photographed with high precision by the camera 38 when the movable body 31 is in the lower position.

In this embodiment, a CCD camera is used as the camera 38 and an LED lamp is used as the illumination 39. However, the present invention is not limited to this, and various cameras and illuminations can be used.

In this embodiment, the camera 38 and the illumination 39 are provided opposite to each other in the left and right direction of the slider 6. However, the camera 38 and the illumination 39 may be provided on the same side in the left and right direction of the slider 6. Is not required.
Further, although the camera 38 is moved up and down over an upper position above the slider 6 and a shooting position facing the slider 6 in the left-right direction, the camera 38 may be fixed at the shooting position. The camera 38 may be moved in the left-right direction or the front-back direction over the standby position and the shooting position.
Further, the position and thickness of the leaf spring 4 and / or the height of the cover 5 may not be detected.

DESCRIPTION OF SYMBOLS 1 ... Torso, 1a ... Element guide part, 2 ... Pull handle, 2a ... Link part, 2b ... Handle part, 2c ... Axis, 3 ... Claw hook, 3a ... Stop claw, 4 ... Leaf spring, 5 ... Cover, 6 ... Slider, 10 ... Turntable, 31 ... Movable body, 32 ... Cylinder (movement source), 36 ... Camera mounting member, 38 ... Camera, 41 ... Hand hold.

Claims

A slider inspection device for a slider assembly machine that inspects a slider assembled by a slider assembly machine,
The slider (6) includes a body (1), a handle (2), a claw hook (3), a leaf spring (4), and a cover (5).
The body (1) includes an element guide portion (1a) through which a fastener element can be inserted, and a claw hole (1e) communicated with the element guide portion (1a) on the upper surface of the body (1) on which the handle (2) is placed. )
The pawl (3) has a stop posture in which the pawl (3a) of the pawl (3) protrudes from the pawl hole (1e) of the body (1) into the element guide (1a), and the pawl (3) The stop claw (3a) is assembled to the body (1) so as to be displaceable over the non-stop posture that has come out of the element guide (1a) of the body (1).
The leaf spring (4) holds the claw hook (3) in a stop posture,
The puller (2) is held in an unloaded posture in which the puller (2) is placed on the upper surface of the body (1) in an unloaded state where no external force is applied to the puller (2), and the puller (2) has a downward external force. Assemble to the fuselage (1) so that the handle (2) is displaced to the downward load posture in the loaded state
When the handle (2) is in the no-load position, the slider (6) is in the stop position, and when the handle (2) is in the load position, the claw (3) is not stopped. To be displaced to posture,
An external force loading means for applying a downward external force to the handle (2) and releasing the downward external force;
The slider (6) when the handle (2) is in an unloaded position, when the handle (2) is displaced from the unloaded position to the loaded position, and when the loaded position (2) is returned to the unloaded position. A camera (38) for shooting
The image captured by the camera (38) is subjected to image processing to detect the actual position of the nail fold (3), the actual position of the nail fold (3), the stop posture of the nail fold 3 and the nail fold 3 A slider inspection apparatus for a slider assembling machine, wherein a non-defective product and a defective product of the slider (6) are determined based on a result of comparing the positions of the nail plate (3) defined by the non-stop posture.
The camera (38) photographs a part (3b) of the nail fold (3) from the opening (5c) of the cover (5),
The image captured by the camera (38) is subjected to image processing to detect the position of the actual part of the nail plate (3) (3b),
The position of the part (3b) of the toothpick (3) defined by the position of the part (3b) of the actual toothpick (3) and the non-stopping posture of the toothpick (3) The slider inspection apparatus for a slider assembly machine according to claim 1, wherein:
The external force loading means includes a puller presser (41) which pushes the puller (2) in an unloaded posture placed on the upper surface of the body (1) downward to place the puller (2) in a downward load posture, and this puller presser ( 41. The slider inspection device for a slider assembly machine according to claim 1, further comprising a moving mechanism for moving 41).
The moving mechanism includes a movable body (31) that moves up and down between an upper position and a lower position, and a pull-down presser (41) attached to the movable body (31). The pull-down presser (41) is a slider. Opposite the handle (2) assembled in (6) in the vertical direction,
When the movable body (31) is in the upper position, the handle presser (41) is disposed above the handle (2), the handle presser (41) is separated from the handle (2), and the movable body (31) is in the upper position. When the movable body (31) is in the lower position, the puller presser (41) pushes down the puller (2).
The camera (38) photographs the slider (6) when the movable body (31) is at the intermediate position, at the lower position, and when the movable body (31) returns from the lower position to the intermediate position. Item 4. A slider inspection apparatus for a slider assembly machine according to Item 3.
In the slider inspection apparatus, a movable body position detecting means (detecting the intermediate position and the lower position of the movable body (31) moved by the moving mechanism and outputting an intermediate position detection signal and a lower position detection signal) 60)
The camera (38) is photographed by the intermediate position detection signal output from the movable body position detection means (60), the lower position detection signal, and the intermediate position detection signal output next to the lower position detection signal. Item 5. A slider inspection apparatus for a slider assembly machine according to Item 4.
A camera (38) and a positioning member for positioning the camera (38) in the vertical direction are attached to the movable body (31),
When the movable body (31) is in the upper position, the camera (38) is not positioned by the positioning member, and the camera (38) is in the standby position above the slider (6).
When the movable body (31) moves from the upper position to the intermediate position, the camera (38) is positioned by the positioning member, and the camera (38) is positioned at the photographing position facing the slider (6).
When the movable body (31) is moved from the intermediate position to the lower position, the camera (38) is held at the photographing position by the positioning member, and the pulling foot presser (41) is moved downward together with the movable body (31) to move the pulling hand ( 6. The slider inspection apparatus for a slider assembly machine according to claim 5, wherein 2) is pushed down.
A positioning member and a camera attachment member (36) are attached to the movable body (31) so as to be movable in the vertical direction.
The positioning member and the camera mounting member (36) are moved downward by a spring, and the lower part of the positioning member and the lower part of the camera mounting member (36) protrude downward from the movable body (31).
Attach the camera (38) to the lower part of the camera mounting member (36),
When the movable body (31) moves from the upper position to the lower position, the positioning member and the camera mounting member (36) move downward together with the movable body (31),
When the movable body (31) moves to the intermediate position, the camera (38) is positioned by the positioning member, and the camera (38) is positioned at the shooting position,
When the movable body (31) moves from the intermediate position to the lower position, the spring extends so that the positioning member and camera mounting member (36) do not move, and the camera (38) is held at the photographing position. The slider inspection apparatus for a slider assembly machine according to claim 6.
The slider (6) comprises a cover (5) having a leaf spring (4),
The captured image of the camera (38) is processed to detect the actual position and thickness of the leaf spring (4) and the actual height of the cover (5), and the actual leaf spring (4). The result of comparing the position, thickness, and cover (5) height and the specified leaf spring (4) position, thickness, and cover (5) height is used to determine whether the slider (6) is good or defective. The slider inspection device for a slider assembly machine according to any one of claims 1 to 7, wherein the slider inspection device is added.