JPH07137831A - Foaming body feeder for inspection - Google Patents

Abstract

PURPOSE:To fed foaming bodies to be inspected to a prescribed place at a high speed and with high accuracy by dispensing with a set-up change. CONSTITUTION:This device is provided with a transparent plate 1 of a rectangular shape, multiple feed bars 3 whose both ends are protruded on the transparent plate 1 and which are linked to a transmission chain 23 respectively and are disposed orthogonally to its advancing direction at regular intervals, a stopper 5 which is located on one side edge of the transparent plate 1 and forms, together with the feed bar 3, multiple accommodating frames S of U-shape, and an air nozzles 62 which is mounted on the opening side of the accommodating frames S and blows air toward the stopper 5. A foaming body (a) which is fed into the accommodating frame S is brought into contact with the feed bar 3 as it moves forward, and is brought into contact with the stopper 5 by air from an air nozzles 62. As a result, the foaming body (a) is accommodated in a fixed place in the corner S1 of the accommodating frame to set a camera 81 at an upper front position and fit a projecting position from an illuminator 82 below the transparent plate 1 to a position as mentioned above in the corner S1 of the accommodating frame, thus the camera 81 catching the transmitted light passing the foaming body (a).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supply device for inspecting a foam used for inspecting the cell size of a foam such as urethane foam.

[0002]

2. Description of the Related Art In a foamed material such as urethane foam, cells may not maintain uniformity during the manufacturing process, and defective portions may partially exist. Therefore, a quality check has been performed in which the illuminator 82 illuminates the foam a and the camera 81 inspects the cell size. By the way, in the conventional inspection,
The foam a placed on the transparent glass plate 93 is supplied to a fixed position under the camera by an air cylinder 92 or the like attached to the base end of the jig 91 (FIG. 7).

[0003]

However, according to the above-mentioned supply method, the foam a is transferred one by one, so that the efficiency is poor. Further, the supply capacity of the air cylinder 92 is limited, and it is not possible to keep up with the inspection speed (0.5 to 0.6 sec) of the camera, and the excellent processing capacity of the camera cannot be fully utilized. Further, the foam a has various shapes as shown in FIGS. 4 to 6, and the stroke and the like of the air cylinder 92 must be adjusted every time the shape is changed, which requires labor and time for setup change.

The present invention solves the above-mentioned problems. When inspecting a light-weight foam such as urethane foam, it is possible to supply the foam to be inspected to a predetermined position at high speed and with high accuracy without requiring a setup change. An object of the present invention is to provide a supply device for inspecting a foam that can be used.

[0005]

SUMMARY OF THE INVENTION A foam inspection device according to the present invention comprises a rectangular transparent plate, both ends of which are projected on the transparent plate and connected to a transmission chain (or a transmission belt). A stopper that forms a plurality of U-shaped housing frames by a plurality of feed bars that are orthogonal to the traveling direction and are arranged at regular intervals, and the feed bars that are arranged on one side edge of the transparent plate and that are adjacent to each other. And an air nozzle that is provided on the opening side of the accommodation frame and blows air toward a stopper, and the foam sent into each of the accommodation frames comes into contact with the feed bar as the feed bar advances and The camera is set at the front upper position where the feed bar advances by contacting the stopper with the air blown from the air nozzle and being housed in a fixed position on the corner of the housing frame, and the transparent plate is illuminated from the illuminator under the transparent plate. To the fixed position of the corner of the housing frame The light transmitted through the foam Te Align is characterized in that as the camera captures.

[0006]

According to the foam inspection device of the present invention, when the feed bar is moved forward by the operation of the transmission chain (or the transmission belt), the foam fed into the individual housing frames is
It is pushed by the feed bar and then the wall abuts the feed bar. When air is blown toward the foam by the air nozzle during the forward movement of the feed bar, the foam receives a lateral wind and its side wall abuts the stopper. In this way, regardless of the shape of the foam, the foam will eventually fit in the fixed position of the corner of the housing frame, and by setting the camera at this fixed position, the foam can be inspected quickly and reliably. .

[0007]

EXAMPLES The present invention will be described in detail below based on examples. (1) Configuration of Foam Inspection Supply Device FIGS. 1 to 4 show an embodiment of a foam inspection supply device according to the present invention. FIG. 1 is an overall perspective view of the inspection supply device,
2 is an enlarged perspective view around the feed bar and the stopper in FIG. 1, and FIG. 3 is a cross-sectional view showing the positional relationship among the feed bar around the discharge port, the foam, and the camera.

Reference numeral 1 indicates a rectangular transparent plate made of acrylic resin. The transparent plate 1 is fixed to a main body frame (not shown) of the feeder with its smooth upper surface 11 being horizontal.
Reference numeral 2 indicates a chain transmission which is arranged on both side edges with the transparent plate 1 interposed therebetween (FIG. 1). Chain transmission 2
Is a chain wheel 21, 22 pivotally supported by the body frame near both ends of the transparent plate 1 and a chain wheel 21, 22 connected in an annular shape.
2 and a transmission chain 23 attached thereto. The position of the upper transmission chain 23 is slightly lower than the level of the smooth upper surface 11 of the transparent plate 1. Storage frame S and supply port 4 described later
This is because the foam a can slide smoothly between the first and second outlets 42.

Reference numeral 3 indicates a strip-shaped transparent acrylic resin feed bar. On the smooth upper surface 11 of the transparent plate 1, orthogonal to the traveling direction of the transmission chain 23 and equally spaced (127 mm pitch)
A plurality of them are arranged (FIG. 2). Then, both ends of each feed bar 3 are projected from the transparent plate 1 and connected to the transmission chain 23.
Specifically, the end surface 31 of the feed bar 3 is fixed to the overhang stop 231 of the transmission chain 23. The feed bars 3, 3, ...
Surrounding the transmission chains 23, 23 is endless. Here, in FIG. 1, the transmission chain 23 rotates counterclockwise, and the feed bar 3 on the transparent plate 1 is located at the lower right of the foam supply port 4.
From the 1st side, it advances to the upper left discharge port 42 side. Each feed bar 3
A ridge 32 that engages with the next stopper 5 is provided at one end of the.

The stopper 5 is made of a transparent acrylic resin and is an elongated strip plate. As shown in FIG. 1, it is laid from approximately right above the chain wheel 21 on the supply port side to about 130 mm before the chain wheel 22 on the discharge port side. The area 130 mm before the chain wheel 22 is for forming the opening 421 of the discharge port 41. The stopper 5 is arranged on one side edge of the transparent plate 1, and more specifically, is fixed to the main body frame so as to engage with the raised portion 32 near one end of each feed bar 3, 3 ,. ). Thus, the feed bar 3 and the stopper 5 are provided on the transparent plate 1.
A large number of U-shaped storage frames S are formed, and each storage frame S forms an index unit chamber in which the foam a to be inspected is stored.

As described above, the supply port 41 of the foam a is
It is provided near the chain wheel 21 on the opening side of the housing frame S. An air nozzle 61 is provided at the supply port 41, and when the foam a is placed on the supply port 41, the foam a slides by the air blown from the air nozzle 61 and is blown onto the transparent plate 1 in the housing frame S. ing. Reference numeral 62 is an air nozzle that sends a side wind. The air nozzles 62, 62, ... Are provided along the transparent plate 1 on the opening side of the housing frame S, and blow air toward the stopper 5. A lateral wind is applied to the foam a transferred by the feed bar 3 to bring the foam into contact with the stopper 5. Similarly, reference numeral 63 also indicates an air nozzle. As shown in FIG. 3, the foam a that has been ejected by inertia as the feed bar 3 advances is brought into contact with the feed bar 3. The air nozzle 64 is for discharging the foam a that has been inspected.

Reference numeral 7 indicates a transparent guide plate which is arranged above the transparent plate 1 and at a position higher than the thickness of the foam a which is an object to be inspected. The air blown from the air nozzles 61, 62, 63 causes the foam a
Is for preventing the carriage from getting over the feed bar 3 and the stopper 5. The transparent guide plate 7 is omitted in FIG.

Reference numeral 8 is an inspection device to which the supply device of the present invention is attached. The inspection device 8 includes a camera 81 and a light source illuminator 82. The camera 81 has an outlet 42.
The foam a1 that fits in the corner S1 of the storage frame, which is one more front, is set at the upper position so that the foam a1 can be inspected (FIG. 1). On the other hand, the illuminator 82 is arranged below the transparent plate 1 to irradiate the foam a1. The camera 81
A CCD (charge-coupled device) built-in type that is a solid-state image sensor, and when light that has passed through the foam a1 from the illuminator 82 enters the pixels of the CCD, the principle of reading image information proportional to the amount of light is used to generate foam. It is designed to check the quality of body cells.

(2) Operation of Foam Inspection Supply Device and Its Operation Next, the operation and operation of the foam inspection supply device will be described. First, the power switch of the camera 81 is turned on, and the chain transmission 2 is driven. Here, the chain transmission 2 is intermittently operated such that the stop time and the operating time are 0.5 sec and 0.25 sec. Then, the width of the housing frame S (127 mm) during the operation time of 0.25 sec.
Set to move forward one by one. Next, the air nozzle 6
The valves 1, 62, 63, 64 (not shown) are opened to blow air. After that, the foam a is supplied to the supply port 41 every 0.75 sec.
Leave.

Then, the foams a, a, ...
Are slid by the wind of the air nozzle 61 and enter the respective accommodation frames S one by one. Then, the feed bar 3 advances forward by the intermittent operation of the chain transmission 2, but the feed bar 3 moves while pushing the foam a, so that the foam a
The rear wall comes into contact with the feed bar 3. On the other hand, in response to the side wind of the air nozzle 62, the foam a is pushed by the feed bar 3 and advances toward the front, gradually approaching the stopper 5 side. Then, by the time it reaches the position of the camera 81, the foam a
The side wall of the abuts on the stopper 5. Thus, the foam a sent to an arbitrary place in the storage frame S is also stored in the fixed position of the storage frame corner S1 at the camera 81 position point. Therefore, the foams a1 are successively fed under the camera 81, so that the quality inspection of the foam cells can be quickly performed at the inspection speed of the camera 81 (about 0.5 sec / cell).

The foam a which has been inspected is finally discharged to the discharge port 42 by the air nozzle 64, and defective products are removed. In addition to the shape shown in FIG. 4, the foam a as the inspection object has a length of 80 mm or less, a width of 80 mm or less, and a thickness of 25.
Attempts have been made in various configurations for dimensions less than mm.

(5) Effect of Embodiment According to the foam inspection device of the above aspect,
Since the foam a, which is the object to be inspected, can be sequentially fed to the position of the camera 81 at high speed and with high accuracy in accordance with the processing speed of the camera 81, the inspection processing capacity is remarkably increased. Then, the work is just to put the foam a on the supply port 41, and the labor saving has been advanced. Further, since the foam a is surely sent to the position of the camera 81 without depending on the shape of the foam, labor and time for changing the setup are not required.

The present invention is not limited to those shown in the above-mentioned embodiment, but can be variously modified within the scope of the present invention depending on the purpose and application. The shapes and sizes of the transparent plate 1, the feed bar 3, and the stopper 5 and the positions of the supply port 41 and the discharge port 42 are not limited to those in this embodiment. Feed bar 3, stopper 5
Need not be a translucent material. The stop time and the operating time of the chain transmission 2 can be appropriately selected. Further, continuous operation can be performed instead of intermittent operation. A transmission belt may be used instead of the transmission chain 23.

[0019]

As described above, the foam inspection device according to the present invention can set the foam to be inspected at the inspection position at high speed and with high accuracy without being influenced by the shape of the foam. , It has an excellent effect on improving the processing capacity of foam inspection.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an inspection supply device.

FIG. 2 is an enlarged perspective view around a feed bar and a stopper in FIG.

FIG. 3 is a cross-sectional view showing a positional relationship between a feed bar around a discharge port, a foam, and a camera.

FIG. 4 is a perspective view of a foam.

FIG. 5 is a perspective view of a foam.

FIG. 6 is a perspective view of a foam.

FIG. 7 is an explanatory sectional view of a conventional technique.

[Explanation of symbols]

 1 Transparent Plate 23 Transmission Chain 3 Feeding Bar 5 Stopper 62 Air Nozzle 81 Camera 82 Illuminator S Storage Frame S1 Storage Frame Corner a Foam

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B29K 105: 04

Claims (1)

[Claims] 1. A rectangular transparent plate (1), both ends of which are projected on the transparent plate, are connected to a transmission chain (or a transmission belt), respectively, and are arranged at regular intervals perpendicular to the traveling direction thereof. A plurality of feed bars (3) and a stopper (5) arranged on one side edge of the transparent plate to form a plurality of U-shaped storage frames with the adjacent feed bars, and an opening of the storage frame. An air nozzle (62) provided on the side and blowing air toward the stopper,
The foam fed into each of the housing frames is held in a fixed position in a corner portion of the housing frame by coming into contact with the feed bar as the feed bar advances and by coming into contact with the stopper by the air blow of the air nozzle. Then, the camera is set at the front upper position where the feed bar advances, and the transmitted light of the foam is adjusted by adjusting the position where the transparent plate is irradiated from the illuminator under the transparent plate to the fixed position of the corner portion of the housing frame. Foam inspection supply device that the camera can capture.