JP4333837B2 - Abnormality detection method and apparatus in continuous hose production line - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an abnormality detection method in a hose continuous production line and an identification detection device of the abnormality detection unit. More specifically, when an abnormal part is detected in a hose continuous production line, the cover rubber of the hose after the cover rubber extrusion process is detected. A continuous hose production line that gives identification marks to abnormal parts on the surface, continues production without stopping the hose continuous production line, detects abnormal parts in the vicinity of inspection and finishing processes, and removes abnormal parts. The present invention relates to an abnormality detection method and an identification detection device for the abnormality detection unit.
[0002]
[Prior art]
Conventionally, as a hose continuous production line, for example, as shown in FIG. 4, a process of extruding an inner resin tube on a mandrel (core material) (A), a process of applying an adhesive to the inner resin tube (B), a tube Extruding process (C) of inner surface rubber tube equipped with outer diameter measuring device (C1) and tube unevenness detecting device (C2), braiding reinforcing layer on inner surface rubber tube equipped with abnormality detecting device (d) of reinforcing layer Step (D), cover rubber extrusion step (E) equipped with an outer diameter measuring device (e), step (F) for covering the cover rubber with a sheath, heating, vulcanization step (G), sheath removal step ( H), mandrel removal process (I), inspection with appearance unevenness inspection apparatus (j), finishing process (J), cutting, shipping process (K), etc. are continuously arranged (for example, patent document) 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 5-138862 (2nd to 5th pages, FIG. 1)
[0004]
[Problems to be solved by the invention]
By the way, in the continuous hose production line for hoses, since the purpose is to save labor as a general rule, there are no workers in each process or work is performed by a very small number of people. For this reason, with regard to manufacturing abnormality in each manufacturing process, the abnormality is detected by a detection device installed individually in each manufacturing process, and the abnormality is recognized by the worker by some abnormality display (for example, a display light or a buzzer). It was.
[0005]
If a manufacturing abnormality occurs, the worker applies an identification mark, such as paper tape or aluminum tape, or applies paint to the hose part in the middle of the manufacturing process on the hose continuous production line. In the inspection process, a method of cutting and removing the hose at the abnormal part has been performed.
[0006]
However, the process of applying the identification mark as described above is all performed in the process before the cover rubber extrusion process, and if the production line is moving at a constant speed and no workers are attached, It is difficult to identify and there is a high possibility of missing an abnormal part detected at a corner.
[0007]
In addition, even if paper hose or aluminum tape is affixed to an abnormal part of the hose during manufacturing, for example, an abnormal part on the reinforcing layer, it can be removed or disappeared in the subsequent cover rubber extrusion process, sheath coating process, vulcanization process, etc. In addition, there is a problem that it is hidden by cover rubber, etc., and abnormal parts cannot be reliably detected by visual inspection or tactile inspection by visual inspection, etc., and it is shipped with abnormal parts included. It was.
[0008]
In addition, an apparatus for automatically attaching a tape or the like has been considered, but the apparatus itself becomes large, requiring a large amount of cost and a large space, and its feasibility is poor.
[0009]
This invention pays attention to such a conventional problem, and when an abnormal part is detected in the continuous hose production line, the abnormal part on the surface of the cover rubber is automatically applied immediately after the cover rubber extrusion process without stopping the continuous hose production line. A hose that can continuously produce stable products that do not contain abnormal parts by applying identification marks and detecting and removing abnormal parts in the inspection and finishing process by continuing the hose continuous production line without stopping. It is an object of the present invention to provide an abnormality detection method for a continuous production line and an identification detection device for the abnormality detection unit.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, an abnormality detection method in a hose continuous production line according to the present invention includes a step of sequentially laminating at least an inner rubber tube and a reinforcing layer in order on the outside of a mandrel, and extruding a cover rubber on the reinforcing layer. An abnormality detection method in a hose continuous production line consisting of a plurality of manufacturing processes including a process, wherein a manufacturing abnormality of the hose is detected by a first abnormality detection means installed in the manufacturing process before the cover rubber extrusion process, Based on the pulse count number of the abnormality detection signal from the first abnormality detection means and the line speed of the continuous hose production line, the operation of the identification mark providing means installed in the manufacturing process after the cover rubber extrusion process is performed. The identification mark is applied to the surface of the cover rubber corresponding to the portion of the production abnormality detected by the first abnormality detection means. In the manufacturing process after applying the second abnormality detecting means detects an identification label, it is an gist to cut off the part of the manufacturing abnormality in the manufacturing process after the detection of the identification label.
[0012]
Further, the identification label applying means, affixed Keru supply application device identification tape, damage to impart ink jet device or uneven spraying paint, a marking device and the first and second abnormality detection means noncontact what outer diameter gauge der, the identification mark that has been granted by the identification label applying means, in which continuously detected as outside径異normal hose after the cover extrusion.
[0013]
In this way, when an abnormal part is detected in the continuous hose production line, the abnormal part on the cover rubber surface is automatically marked immediately after the cover rubber extrusion process without stopping the continuous hose production line, and the production continues. By detecting an abnormal part in the vicinity of the inspection and finishing processes and removing the abnormal part in the shipping process, it is possible to continuously produce a stable product that does not include a product abnormality.
[0014]
Further, the abnormality detecting device in the continuous hose production line of the present invention includes a plurality of steps including sequentially laminating at least an inner rubber tube and a reinforcing layer on the outer side of the mandrel, and extruding a cover rubber on the reinforcing layer. An abnormality detection device in a continuous hose production line comprising the manufacturing process of the first, a first abnormality detection means installed in the manufacturing process before the extrusion process of the cover rubber, and a manufacturing process after the extrusion process of the cover rubber A pulse of an abnormality detection signal from the first abnormality detecting means, comprising: an identification mark providing means installed; and a second abnormality detecting means installed in a manufacturing process subsequent to the manufacturing process in which the identification mark providing means is installed. From the count number and the line speed of the hose continuous production line, the operation of the identification mark applying means is started, and the manufacturing detected by the first abnormality detecting means In subjecting the identification label cover rubber surface of the portion corresponding to the normal part, cut to remove the portion of the first detected by the abnormality detecting means producing abnormality after detecting by said second abnormality detection means the identification label This is the gist.
[0015]
The identification label applying means, supplying joining apparatus pasted the identification tape, wounding imparting Lee inkjet device or concave convex blowing Paint is engraved equipment.
[0016]
The damage, marking apparatus, a rotatable guide roll, and composed of a stamped roll having an uneven surface, the hose is held on the guide roll in the cover rubber surface by sandwiching with the engraved roll in which was to perform an uneven engraved.
[0017]
In this way, the identification mark providing means that operates based on the signal from the detection means in each manufacturing process has a simple structure and a compact configuration that does not take up space, and can reliably apply an identification mark to an abnormal portion of the hose. It is possible.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
[0019]
In the following description, the same components as those in the conventional example are denoted by the same reference numerals, and the description thereof is omitted.
[0020]
FIG. 1 shows a flowchart in the process of a continuous hose production line according to the present invention. In this continuous hose production line, the process of extruding an inner resin tube on a mandrel (core material) (A), and the surface of the inner resin tube Step (B) for applying an adhesive to the inner surface, step (C) for extruding the inner rubber tube, step (D) for braiding the reinforcing layer on the inner rubber tube, step (E) for extruding the cover rubber, and a step for manufacturing the hose. A step of applying an identification mark to the abnormal portion in (F), a step of covering a cover rubber with a sheath such as a resin material (G), a step of heating and vulcanizing the hose covering the sheath (H), and a step of removing the sheath ( I), a mandrel removing step (J), an inspection and finishing step (K), an identification mark detection step (L) provided with a second abnormality detecting means for detecting an identification mark of an abnormal portion of the hose, a hose Cutting anomalous partial, shipping step (M) is are continuously arranged.
[0021]
In the step (C) of extruding the inner surface rubber tube, a tube outer diameter measuring device (c1) and a tube unevenness detecting device (c2) constituting the first abnormality detecting means are installed, and the inner surface rubber is disposed on the inner surface resin tube. After the tube is extruded, the outer diameter of the tube is measured with a non-contact type outer diameter measuring device, and the irregularities on the surface of the tube are automatically detected using a non-contact type irregularity detector.
[0022]
In the step (D) of braiding the reinforcing layer on the inner rubber tube, a first abnormality in which an abnormal state of the reinforcing layer, for example, a disturbance of the braided reinforcement cord or a disturbance of the spiral reinforcement cord is detected by a television camera or the like. An abnormal state detecting device (d) for the reinforcing layer constituting the detecting means is installed. Furthermore, in the cover rubber extrusion process (E), a non-contact type outer diameter measuring device (e) such as a laser outer diameter measuring device constituting the first abnormality detecting means is installed, and an inspection and finishing process is performed. In (K), an appearance unevenness inspection apparatus (k) constituting the first abnormality detection means is installed.
[0023]
In the step (F) of applying an identification mark to the abnormal part in the hose manufacturing process, an identification mark applying means 10 as shown in FIGS. 2 (a) and (b) or FIGS. 3 (a) and (b) is installed. For example, as shown in FIG. 2A, an identification tape 12 (aluminum tape or the like) as an identification mark is attached to the abnormal portion X of the cover rubber surface 11a of the hose 11 as the identification mark applying means 10. As shown in FIG. 2B, the supply pasting device 13 for pasting, the ink jet device 15 for spraying paint (paint such as ink) through the nozzle 14 to the abnormal portion X of the cover rubber surface 11a, and FIG. As shown in a) and (b), a scratching and engraving device 17 or the like that gives unevenness to the abnormal portion X of the cover rubber surface 11a of the hose 11 is used.
[0024]
The supply and sticking device 13 is for sticking the identification tape 12 supplied from a tape supply device (not shown) to the abnormal portion X of the cover rubber surface 11a by a turnable sticking roller 18.
[0025]
In addition, the inkjet device 15 sprays a predetermined amount of paint that can be easily identified on the abnormal portion X of the cover rubber surface 11 a through the nozzle 14.
[0026]
Further, as shown in FIGS. 3 (a) and 3 (b), the scratching and marking device 17 is composed of a rotatable pulley-shaped guide roll 19 and a marking roll 20 provided with irregularities 20a on the surface, As shown in FIG. 3A, at least one of the guide roll 19 and the marking roll 20 is operated to sandwich the opposed outer peripheral surfaces of the hose 11, and the abnormal portion of the cover rubber surface 11a is moved with the movement of the hose 11. It is configured so as to give an uneven marking 16 to X.
[0027]
In this embodiment, a rotatable guide roll 19 whose position is fixed is used, and the marking roll 20 is lifted and lowered on the center line of the guide roll 19 via a cylinder 21 and is rotatably supported. Is used.
[0028]
The form of the stamp 16 is not particularly limited, but the structure of the stamp roll 20 is not particularly limited as long as it has irregularities and scratches that do not affect the quality of the hose having no abnormal parts in the subsequent process by scratching the reinforcing layer. It is not limited.
[0029]
As the second abnormality detection means in the identification mark detection step (L), for example, an engineering detection means such as a television camera that detects disturbance of the braided reinforcement cord, disturbance of the spiral reinforcement cord, or the like is used. is there.
[0030]
Next, an abnormality detection method in the hose continuous production line will be described.
[0031]
In a continuous hose production line that manufactures hoses continuously through a plurality of manufacturing processes as described above, the process of extruding the inner resin tube to the mandrel (core material) (A), and applying the adhesive to the surface of the inner resin tube In each of the process (B), the process of extruding the inner rubber tube (C), the process of braiding the reinforcing layer on the inner rubber tube (D), and the process of extruding the cover rubber (E) After that, the tube outer diameter measuring device (c1) and the tube unevenness detecting device (c2) are extruded in the process (C) of pushing the inner rubber tube, and the reinforcement layer is abnormal in the process (D) of braiding the reinforcement layer on the inner rubber tube. The state detector (d) is provided with an outer diameter measuring device (e) in the cover rubber extrusion step (E), and the first abnormality detecting means checks whether or not there is a manufacturing abnormality.
[0032]
When a manufacturing abnormality of the hose 11 is detected by the first abnormality detection means in the manufacturing process before the cover rubber extrusion process (E), an abnormality detection signal is detected from the detected detection process. ) It outputs to the control means (not shown) of the identification mark provision means 10 installed behind.
[0033]
With this control means, the operation start time by the identification mark applying means 10 is calculated from the pulse count number of the abnormality detection signal and the line speed (conveyance speed) of the hose 11, and the control means controls the identification mark applying means 10. Output to signal.
[0034]
That is, the distance between the abnormal state detection device (d) and the identification mark applying means 10 is obtained from the pulse count, and the arrival time of the abnormal portion is obtained from the distance and the line speed (conveying speed) of the hose 11 to identify the identification mark. This is the operation start time by the applying means 10.
[0035]
And the identification mark provision means 10 gives an identification mark to the cover rubber | gum surface 11a of the location corresponding to the hose abnormal part X based on a control signal, without stopping a hose continuous production line.
[0036]
As described above, as the identification mark imparting means 10, as described above, the supply sticking device 13 for sticking the identification tape 12 (aluminum tape or the like) as the identification mark to the abnormal portion X of the cover rubber surface 11 a of the hose 11, or the cover rubber surface 11 a Selected from the inkjet device 15 that sprays paint (paint such as ink) through the nozzle 14 to the abnormal portion X of the ink, and the scratching and marking device 17 that gives the stamp 16 to the abnormal portion X of the cover rubber surface 11a of the hose 11 And use it.
[0037]
The hose 11 with the identification mark applied to the abnormal portion X of the hose 11 by the identification mark applying means 10 is a process of covering the sheath on the cover rubber (G), heating of the hose, vulcanization process (H), sheath After the removal process (I) and the mandrel removal process (J), the identification mark of the abnormal part X is detected when passing through the appearance irregularity inspection device (k) such as a laser outer diameter measuring instrument provided in the inspection and finishing process (K). The abnormal portion X of the hose 11 is detected by the second abnormality detecting means in the identification mark detecting step (L). And the abnormal part X of this hose 11 is a process (M) which cut | disconnects and ships a product, cuts the abnormal part X of a hose, and ships a product.
[0038]
Thus, when an abnormal point is detected in the continuous hose production line, the hose continuous production line is automatically stopped without stopping the hose continuous production line immediately after the cover rubber extrusion step (E). The abnormal part X is provided with an identification mark on the abnormal part X of the cover rubber surface 11a, the production is continued, the inspection and finishing process (K), and the identification sign detection process (L) for detecting the identification mark of the abnormal part X of the hose 11 In the process (M) of detecting X, cutting and shipping the product, the abnormal part X of the hose is cut and then the product is shipped, so that stable products can be produced continuously. is there.
[0039]
【The invention's effect】
In the hose continuous production line that continuously manufactures the hose through a plurality of manufacturing processes as described above, the first of the plurality of manufacturing processes is a manufacturing process prior to the hose cover rubber extruding process. When abnormality is detected by the abnormality detection means, an abnormality detection signal is output to the control means of the identification mark applying means installed at the rear of the cover rubber extrusion process, and the abnormality detection is performed by this control means. The operation start time by the identification mark applying means is calculated from the pulse count number of the signal and the conveying speed of the hose, and based on the control signal from the control means, the cover rubber at the location corresponding to the abnormal portion of the hose by the identification mark applying means An identification mark is applied to the surface, the identification mark of the abnormal part is detected by the second abnormality detection means in the vicinity of the hose inspection and finishing process, and shipped. Because the abnormal part was cut and removed in the process, when the abnormal part was detected in the continuous hose production line, the cover rubber surface abnormality automatically occurred without stopping the continuous hose production line immediately after the cover rubber extrusion process. Produces stable products that do not contain abnormal parts by applying identification marks to the parts, detecting abnormal parts in inspection and finishing processes while continuing production, and removing abnormal parts in the shipping process. There is an effect that can be.
[0040]
In addition, the identification detection device in the continuous hose production line of the present invention has an abnormal part on the surface of the hose cover rubber on the basis of the abnormality detection signal from the first abnormality detection means in each manufacturing process behind the hose cover rubber extrusion process. Since the identification mark applying means for applying the identification mark is installed, and the second abnormality detection means for continuously detecting the identification mark of the abnormal portion is installed in the vicinity of the hose inspection and finishing process, The identification mark providing means that operates based on the signal from the detection means has a simple structure and a compact configuration that does not take up space, and has an effect of reliably applying an identification mark to an abnormal portion of the hose.
[Brief description of the drawings]
FIG. 1 is a flowchart in the process of a continuous hose production line according to the present invention.
FIG. 2A is a perspective view of a supply sticking device for sticking an identification tape as an identification mark providing means, and FIG. 2B is a schematic explanatory view of an ink jet apparatus as an identification mark providing means.
FIG. 3A is a side view of a marking device as an identification mark providing unit, and FIG. 3B is an enlarged front view of a guide roll and a marking roll of FIG.
FIG. 4 is a flowchart in a process of a conventional hose continuous production line.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Identification label provision means 11 Hose 11a Cover rubber surface 12 Identification tape 13 Supply sticking apparatus 14 Nozzle 15 Inkjet apparatus 16 Marking 17 Scratching and marking apparatus 18 Sticking roller 19 Guide roll 20 Stamping roll 20a Concavity and convexity 21 Cylinder X Abnormal part

Claims (6)

An abnormality detection method in a continuous hose production line comprising a plurality of manufacturing steps including a step of laminating at least an inner rubber tube and a reinforcing layer in order on the outside of a mandrel and a step of extruding a cover rubber on the reinforcing layer. And
The first abnormality detecting means installed in the manufacturing process prior to the extrusion process of the cover rubber detects hose manufacturing abnormality, the pulse count number of the abnormality detection signal from the first abnormality detecting means, and the continuous production of the hose The location corresponding to the part of the manufacturing abnormality detected by the first abnormality detecting means by starting the operation of the identification mark applying means installed in the manufacturing process after the extrusion process of the cover rubber from the line speed of the line An identification mark is applied to the surface of the cover rubber, the identification mark is detected by the second abnormality detecting means in the manufacturing process after the identification mark is applied, and the manufacturing abnormality is detected in the manufacturing process after the identification mark is detected. Abnormality detection method in a hose continuous production line that cuts and removes parts . The abnormality detection method in the hose continuous production line according to claim 1, wherein the identification mark applying unit is a supply application device for applying an identification tape , an ink jet device for spraying paint , or a scratching or marking device for applying unevenness. The abnormality detection method in the hose continuous production line according to claim 1 or 2 , wherein the first and second abnormality detection means are non- contact type outer diameter measuring devices. An abnormality detection device in a continuous hose production line comprising a plurality of manufacturing steps including a step of laminating at least an inner rubber tube and a reinforcing layer in order on the outside of a mandrel, and a step of extruding a cover rubber on the reinforcing layer. And
1st abnormality detection means installed in the manufacturing process before the extrusion process of the cover rubber, identification mark applying means installed in the manufacturing process after the extrusion process of the cover rubber, and manufacturing in which the identification mark applying means is installed A second abnormality detection means installed in the manufacturing process after the process,
Based on the pulse count number of the abnormality detection signal from the first abnormality detection means and the line speed of the hose continuous production line, the operation of the identification mark applying means is started and detected by the first abnormality detection means. An identification mark is applied to the surface of the cover rubber corresponding to the manufactured abnormality portion, and the manufacturing abnormality portion detected by the first abnormality detection means is cut after the identification mark is detected by the second abnormality detection means. abnormal detection device in the hose continuous production line to be removed. The identification label applying means, supplying joining apparatus pasted the identification tape, wounding imparting Lee inkjet device or concave convex blowing Paint, different in hose continuous production line according to claim 4, wherein the marking equipment atmospheric detection apparatus. The damage, the stamping device, a rotatable guide roll, and composed of a stamped roll having an uneven surface, the hose is held on the guide roll in the cover rubber surface by sandwiching with the engraved roll abnormal detection device in the hose continuous production line according to claim 5 which is adapted subjected to uneven engraved.

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