JP5332473B2 - Heater production system - Google Patents

Description

  The present invention relates to a heater production system for producing a sheath type heater by sequentially performing a plurality of processes on a work sheath.

  With the recent increase in size of PDPs and liquid crystals, sheath type heaters used in the manufacturing apparatuses are also in the trend of increasing size. Conventionally, long sheath type heaters provided in various pipes have been used. These sheath type heaters are formed by bending a long sheath tube at a plurality of locations into a zigzag shape, and have a structure in which heating lines are firmly embedded in a metal sheath via high-purity magnesia powder ( For example, refer to Patent Documents 1 and 2), and the production process includes processing operations such as cutting / peeling, welding, and pressing, and dedicated processing apparatuses are used for each. However, since the workpiece sheath to be processed is becoming larger, it is necessary to firmly support a large bent workpiece sheath in a stable posture during each processing. It is difficult for workers to perform alone, and two or more pairs are forced to work.

  For example, in the work sheath welding operation, all-around welding is conventionally performed on a table. However, since it is necessary to invert and weld the sheath coil every half circumference, the pair operation must be performed well at the time of inversion. Misalignment and tearing occur, causing poor welding. In addition, it is necessary to check the workmanship after welding while rotating the work sheath by two or more people, so workability is poor and quality may be deteriorated. Further, in the press work, if the pair work with the supporting person is not performed well, the quality is deteriorated. Furthermore, in the inspection process of the finished product, one person supports the product, measures the bending direction, dimensions, etc. on the table with a measure, and confirms the bent part in the drawing, but there is a slight difference in dimensions, It is difficult to detect angle differences. During these processing operations or when transporting to the next process, work and transport with a work sheath placed on the table or floor will inevitably increase, making it difficult to ensure quality and take up space in the factory. There is also a problem.

JP 2007-220325 A JP 2008-153151 A

  Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem that only one worker can easily and efficiently perform processing / inspection, and the workability is good, and improvement in production quality can be expected. Furthermore, the present invention is to provide a production system for a sheath type heater that can further improve the efficiency of space.

  The present invention is a heater production system for producing a sheath type heater by performing a plurality of processes to solve the above-mentioned problems, and provides a transfer rail and processes a plurality of work areas along the transfer rail. A heater production system is provided in which a plurality of hangers are provided which are arranged in order, provided with work rails in each work area, and traveling on the transfer rails or work rails while suspending a work sheath.

  Here, the transfer rail and each work rail are provided so as to be discontinuous with each other, and as the plurality of hangers, at least two kinds of a transfer hanger that travels on the transfer rail and a work hanger that travels on each work rail What provided the hanger of this is preferable. Moreover, it is preferable that the hanger includes a long connecting member such as a rubber string suspended downward, and a work hook that is provided at a lower end portion of the hanger and on which a work sheath is hooked.

  Furthermore, it is preferable to provide a delivery short rail that is separated from the transfer rail and moved in a direction approaching the work rail at a portion corresponding to each work area of the transfer rail. In particular, on the side of the delivery short rail opposite to the work rail, a passing short rail having the same length as the delivery short rail is arranged in parallel with a gap, and these rails are integrated in the lateral direction with the work rail. Driving means for switching and connecting the rails to the transfer rails so that the passing short rails are connected to the transfer rails by moving the rails and the delivery short rails are connected to the transfer rails by moving in the opposite direction. What is provided is a preferred example. Moreover, what provided the raising / lowering means to raise / lower the said work rail to an up-down direction is also preferable.

  According to the heater production system according to the present invention as described above, since the work apparatus can be processed while the work sheath is suspended from the hanger of the work rail provided in each work area, Even if there is no auxiliary worker to support the work sheath, the work sheath can be hung and held in an appropriate posture by a hanger, the posture can be easily changed, and workability is improved and work accuracy and before and after machining are improved. The accuracy of quality confirmation inspection can also be improved to improve production efficiency, reduce costs, and improve production quality. In addition, transfer between work areas can be easily performed by one person by running a hanger along the transfer rail, so there is no need to place work hangers on the floor or table, and the efficiency of the space in the factory is also improved. be able to.

  For example, in the cutting / peeling work process, the work sheath can be stabilized by one worker by suspending the opposite side to the machined side on a hanger, and the work can be efficiently cut and then peeled off. It is also possible to add continuous processing to the product, and the quality can be stabilized. Also, in the welding process, if the opposite side is hung on a hanger, it is possible to finish the entire circumference at once just by sandwiching the processing side with a vise, improving workability and processing accuracy. . Even in the pressing process, the work sheath can be stably held by the hanger, so the accuracy is improved and the workability is improved. Furthermore, even in the inspection process before and after processing, it is possible to easily and reliably inspect the dimensions, etc., by superimposing and bending three-dimensional samples while hanging on the hanger, and with insulation, pressure resistance, and inspection in the suspended state As a result, the workability is improved and no load is applied to the connection part due to handling.

  In addition, the work sheath can be freely used in the work area if the hanger is provided with a long connecting member such as a rubber string that is hung downward and a work hook provided at the lower end of the hanger. Can be stabilized.

  In addition, in a case where a delivery short rail that is separated from the transfer rail and moved in a direction approaching the work rail is provided at a portion corresponding to each work area of the transfer rail, an operator removes the work sheath to the transfer rail. Therefore, the workability is improved and the empty transport hanger can be kept on standby.

  In addition, on the opposite side of the delivery short rail to the work rail, a passing short rail having the same length as the delivery short rail is arranged in parallel with a gap, and these rails are integrated in the lateral direction with the work rail. Driving means for switching and connecting the rails to the transfer rails so that the passing short rails are connected to the transfer rails by moving the rails and the delivery short rails are connected to the transfer rails by moving in the opposite direction. In the provided one, other work sheaths that do not require the work can be passed, and a plurality of types of products can be produced simultaneously. Further, if an elevating means for elevating and lowering the work rail is provided, it is possible to perform work efficiently by adjusting the vertical position of the work sheath together with the hanger.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  1 and 2 are explanatory views showing the overall configuration of the heater production system S of the present invention. FIGS. 1 to 5 show the first embodiment, FIGS. 6 to 9 show the second embodiment, and reference numeral 1 in the figure. Is a transfer rail, 2 is a work rail, 3 is a transfer hanger, 4 is a work hanger, and W is a work sheath to be processed.

  The heater production system S of the present invention is a system for producing a sheath type heater such as a sheathed heater or a micro heater. As shown in FIG. 1, a plurality of work areas R1, R2, R3, R4 along the transfer rail 1 are provided. ,... Are arranged in the order of the processes, a work rail 2 is provided for each work area, and a plurality of hangers 3,..., 4,. It is possible to suspend the work sheath W on the hanger 3 and sequentially transfer it to each work area, and to perform processing with good workability with a processing device (not shown) in each work area while also hanging on the hanger 4. This is a hanger type production system.

  The work regions R1, R2, R3, R4,... Are processing parts in which various processing devices for performing necessary processing on the work sheath W are installed. For example, the work regions R1, R2, R3, R4,. The cutting / peeling device, the welding work area is equipped with a welding device, the press work area is equipped with a press, and the insulation / pressure-resistant inspection work area is equipped with the inspection device. Further, in this example, as shown in FIG. 1, a work area R0 for receiving and inspecting a work sheath W before processing is also provided. Here, a bent portion is formed by an actual product sample while being suspended on the work hanger 4. By inspecting the dimensions and cutting dimensions, the accuracy of the received quality can be improved. Further, although not shown, it is also preferable to provide a similar work area for inspecting the processed product in the same manner, and it is bent / finished with the final finished product sample (product sample inspection jig) while being suspended on the work hanger. By matching the dimensions and the like, accurate and reliable inspection can be easily performed.

  First, based on FIGS. 1-5, 1st Embodiment is described.

  In the present embodiment, as shown in FIG. 1, the work rails 2 extend at right angles from the positions corresponding to the work areas of the transfer rail 1 toward the work areas at predetermined intervals. The work rails 2 are discontinuous with the predetermined interval. The transfer rail 1 and the work rail 2 are both installed on the ceiling side at substantially the same height, and a plurality of transfer hangers 3,... A dedicated work hanger 4 is also mounted so that it can run. Then, by moving the transfer hanger 3 with the work sheath W suspended along the transfer rail 1, the transfer hanger 3 is sequentially transferred to each work area R 1, R 2, R 3, R 4,. As shown in FIG. 2, the work sheath W is replaced with the work hanger 4 and processed by the processing apparatus while being suspended, and then returned to the waiting transfer hanger 3 and transferred to the next work area.

  As shown in FIG. 3, each of the transfer hanger 3 and the work hanger 4 includes an L-shaped cross-beam 50 having a wheel 52 that travels inside the transfer rail 1 or the work rail 2, and both ends thereof. It has a gate-shaped basic structure consisting of a pair of transfer hooks 51, 51 extending downwardly in a J-shape, and the work hanger 4 has a rubber hung downward from the center position of the horizontal bar 50 Suspension means 6 comprising a long coupling member 60 such as a string, a fiber string, a metal wire, a coupling rod, a coil spring and the like and a work hook 61 provided at the lower end thereof is provided, and the work sheath W is suspended. The work is suspended by the work hook 61 of the means 6 and the machining work is performed using the machining apparatus P in that state. The hanger has two transfer hooks, but is not limited to such a structure. One or three or more hooks may be provided, and various shapes can be adopted. Moreover, what is equipped with the raising / lowering mechanism in which the whole hanger can fall below is also preferable.

  A delivery short rail 10 that is separated from the transfer rail 1 and moved in a direction approaching the work rail 2 is provided at a portion of the transfer rail 1 corresponding to the work area R1, R2,. This eliminates the need for the worker to take the work sheath down to the bottom of the transfer rail 1 and improves work efficiency. Specifically, as shown in FIG. 4, on the opposite side of the delivery short rail 10 from the work rail 2, a passing short rail 11 having the same length as the delivery short rail 10 is connected in parallel at an interval. The passing short rail 11 is connected to the transfer rail 1 by moving these rails 10 and 11 integrally in the lateral direction in which the work rail 2 is located, and the delivery short rail 10 is moved by moving in the reverse direction. Is configured to be connected to the transfer rail 1. This interval is slightly shorter than the interval between the transfer rail 1 and the work rail 2 described above, and the other delivery short rail 10 is close to the work rail 2 with the passing short rail 11 connected to the transfer rail 1. It is set to be.

  The passing short rail 11 is for passing other work sheaths that do not need to be processed by the processing apparatus while the transfer hanger 3 is waiting on the delivery short rail 10. It is possible to share the same processing in the work area, and it is also possible to produce in a state where different types of work sheaths that do not require the processing are mixed. In a system that does not require other work sheaths to pass through, that is, a system that waits for other work sheaths in turn, the passing short rail can be omitted.

  The delivery short rail 10 and the passing short rail 11 are integrated by the connecting member 12 and, as described above, the drive cylinder 13 is provided as a drive means for switching and connecting the rails 10 and 11 to the transfer rail 1. Yes. When the work is not performed, the delivery short rail 10 is connected to the transfer rail 1, and when the transfer hanger 3 with the work sheath W to be processed suspended on the delivery short rail comes to FIG. The drive cylinder 13 is driven to move the delivery short rail 10 in the lateral direction toward the end of the work rail 2 while the transfer hanger 3 is placed. At the time of this movement, if both ends of the delivery short rail 10 and the end of the transfer rail 1 are open, there is a risk that the hanger will fall. Therefore, preferably when the opening is automatically closed and the rails are connected. Is provided with an automatic shutter for preventing falling that is automatically opened.

  The movement by the drive cylinder 13 stops at a position where the passing short rail 11 is connected to the transfer rail 1 as shown in FIG. In this state, the delivery short rail 10 has moved to the position close to the end of the work rail 2, and the worker moves from the transfer hanger 3 of the delivery short rail 10 to the work hanger 4 of the work rail 2 as indicated by the arrow in the figure. The work sheath W is replaced. The work sheath W is hung on the transfer hook 51 of the transfer hanger 3, but when the work sheath W is replaced with the work hanger 4, it is hung on the work hook 61 and the transfer hook 51 is not used. The work hanger 4 uses parts common to the transfer hanger 3 to reduce costs and improve the efficiency of parts management. However, since the work hanger 4 is a dedicated hanger, a transfer hook 51 that is not used. Of course, 51 can be omitted.

  After this replacement, the delivery short rail 10 is not moved until the processing is completed, and is waiting with the empty transfer hanger 3 placed thereon as shown in FIG. The work sheath W can be passed through the passing short rail 11 to the next work area by another worker or the like. Since the work hanger 4 to which the work sheath W is attached can be freely moved along the work rail 2 installed above the processing apparatus, the long work sheath W can be operated by the work hanger 4. Even if there is no auxiliary worker supporting the work sheath W in a state of being suspended from the hook 61, it is possible to efficiently perform processing using the processing device.

  When processing by the processing device in the work area is finished, the work sheath W is replaced with the transfer hook 51 of the transfer hanger 3 waiting on the delivery short rail 10 from the work hanger 4 (see FIG. 4B). In the opposite direction of the arrow), the delivery cylinder 10 is moved laterally to the position where it is connected to the transfer rail 1 by the drive cylinder 13 and returned to the state shown in FIG. 4A, and the work sheath W is transferred to the transfer rail 1 by the transfer hanger 3. And transferred to the next work area. The drive cylinder 13 is provided in the work area with a remote control device capable of operating its operation, and is remotely operated by an operator when the work sheath W is delivered. For example, the transfer hanger 3 is positioned on the delivery short rail 10. A sensor for detecting this is provided, and the drive cylinder 13 is automatically driven to move the delivery short rail 10 laterally toward the end of the work rail 2 with the transfer hanger 3 mounted thereon, A sensor for detecting that the work rail 4 is located at the end close to the transfer rail is provided. When the work sheath W is replaced with the work hanger 4 and the hanger 4 is moved, the delivery end rail 10 is moved to the transfer rail 1 side. When the work hanger 4 is positioned at the end of the work rail again after finishing the processing automatically, it is detected and the delivery end rail 10 is picked up. It is also preferred examples for automatically controlling the drive cylinder 13 to so that.

  The delivery short rail 10 may be omitted, and the work rail 2 may be configured to extend from the vicinity of the transfer rail 1. In this case, the empty transfer hanger cannot be made to stand by in order to pass another work sheath, but if the empty transfer hanger is always present on the transfer rail, the processed work sheath is processed. Can be transferred to the next work area by replacing it with an empty transfer hanger different from the first hanger. It is also preferable to provide a stopper that detachably locks the transfer hanger on the transfer rail so that other work sheaths do not pass through. In this example, only one work hanger 4 is provided, but a plurality of work hangers 4 may be provided on the work rail 2. Thereby, it is possible to place a plurality of transfer hangers on the delivery short rail 10, suspend the plurality of work sheaths on the plurality of work hangers, respectively, and process the plurality of work sheaths together. Further, as shown in FIG. 5, if the lifting / lowering means 7 for lifting the work rail 2 in the vertical direction is provided, the work sheath W can be adjusted in the vertical direction together with the work hanger 4 during the work. Work can be done. In particular, it is possible to adjust the position of the work sheath W downward by configuring the suspension means 6 of the work hanger 4 to be vertically extendable or by providing a mechanism for lowering the work hanger 4 itself. If the work rail 2 can be moved up and down as in this example, the work sheath W can be moved further upward, which is particularly convenient when processing a large work sheath W, and the workability is improved. improves. In this example, the lifting / lowering means 7 has a drive shaft 73 having wires 70 and 70 for suspending and supporting the work rail 2 in a horizontal state and wire take-up portions 72 and 72 for winding the work rail 2 via pulleys 71 and 71. And a drive motor (not shown) that rotates the drive shaft 73, but other lift means may of course be used.

  Next, a second embodiment of the present invention will be described based on FIGS.

  In the present embodiment, the work rail 2 is not provided with a dedicated work hanger 4, but the transfer hanger 3 traveling on the transfer rail 1 is directly connected to the work rail 2 via the delivery short rail 10 as shown in FIG. 6. The work sheath W that is pulled in and suspended on the transfer hanger 3 is processed, and the work sheath W is not replaced with the work hanger 4, so that the work efficiency can be greatly improved. is there.

  Specifically, a gently bent portion 20 (curved portion) connected to one end of the delivery short rail 10 is provided at the end of the work rail 2, and the workpiece sheath W to be processed is placed on the delivery short rail. When the suspended transfer hanger 3 comes, the drive cylinder 13 is driven as shown in FIG. 6A, and the delivery short rail 10 is directed toward the bent portion 20 of the work rail 2 with the transfer hanger 3 placed thereon. 6b and stops at a position where the delivery short rail 10 is connected to the bent portion 20 as shown in FIG. Then, the transfer hanger 3 in which the work sheath W is suspended is pulled by the worker from the delivery short rail 10 through the bent portion 20 to the work rail 2 as it is.

  Thus, in this example, since the transfer hanger 3 is drawn into the work rail 2 and used as it is as a work hanger, a dedicated work hanger is not required, and all the hangers can have a common structure. That is, the transfer hanger 3 is provided with a long connecting member 60 and a work hook 61 as suspension means 6 for suspending the work sheath during work. As shown in FIG. The work sheath W is transferred from the work hanger 61 to the work hook 61. However, as compared with the change from the transfer hanger 3 to the work hanger 4 as in the first embodiment, the replacement work can be easily performed. Of course, it is possible to omit the suspension means 6 and perform the processing while being suspended from the transfer hook 51. In this case, it is preferable to provide an elevating mechanism that can lower the transfer hook 51 or the entire hanger downward.

  Until the processing is completed, the delivery short rail 10 is not moved, and other work sheaths W can be passed to the next work area via the passing short rail 11 by other workers or the like. . When the processing is finished, the work sheath W is moved to the transfer hook 51 and then the transfer hanger 3 is moved to the position of the delivery short rail 10 and the drive cylinder 13 is moved to the position where the delivery rail 10 is connected to the transfer rail 1. The workpiece sheath W is moved to the next work area along the transfer rail 1 by the transfer hanger 3 by returning to the state shown in FIG. Here, as in the first embodiment, it is also possible to draw a plurality of transfer hangers 3 at a time and process a plurality of work sheaths together. It is also preferable to provide a hanger detection sensor on the delivery short rail 10 to automatically control movement of the delivery short rail.

  The example shown in FIG. 7 is a modification of the heater production system in which the transfer hanger 3 itself is similarly drawn into the work rail 2 and functions as the work hanger as it is. The delivery short rail 10 is used instead of the bent portion 20 described above. A bent portion is formed and connected to the straight work rail 2. Then, in a normal state, as shown in FIG. 7A, the straight passing short rail 11 is connected to the transfer rail 1, and when the transfer hanger that suspends the workpiece sheath to be processed approaches, As shown in b), the curved delivery short rail 10 is connected to the transfer rail to receive the transfer hanger, and in this state, the delivery short rail 10 is moved to the work rail 2 side as shown in FIG. The transfer hanger 3 is moved to the work rail 2 side as it is, and the work can be performed while the work sheath W is suspended from the moved transfer hanger 3. In this state, the passing short rail 11 is connected to the transfer rail 1, and a work sheath that is not a processing target can be passed.

  FIG. 8 is another modification of the heater production system in which the transfer hanger 3 itself is similarly drawn into the work rail 2 and functions as it is as a work hanger. Instead of providing two of the delivery short rail 10 and the passing short rail 11, FIG. In addition, one delivery rail 10A is provided so as to be horizontally rotatable, and is connected to the work rail 2 as shown in (b) in the figure and the angular position connected to the transfer rail 1 as shown in (a) in the figure. It is configured to rotate in the horizontal direction so that it can be switched between two angular positions.

  FIG. 9 shows still another modification of the heater production system in which the transfer hanger 3 itself is also drawn into the work rail 2 and functions as it is as a work hanger. The work rail 2 includes the bent portion 20 and the straight portion. Instead of the configuration, the substantially C-shaped end portions 21 and 21 are respectively connected to the both end portions 10a and 10a of the delivery short rail 10, and are configured in an endless annular shape with the delivery short rail 10 connected thereto. It is what is done. According to this, for example, when pulling and processing a plurality of transfer hangers at a time, the hangers received from one end side of the delivery short rail 10 can be returned to the other end side sequentially from the finished processing. Will also improve.

  The embodiment of the present invention has been described above, but the present invention is not limited to such an example. For example, a drive means for driving and driving a transfer hanger or a work hanger, Needless to say, the present invention can be implemented in various forms without departing from the gist of the present invention, such as one that automatically moves.

The top view which shows the heater production system which concerns on 1st Embodiment of this invention. The perspective view which similarly shows a heater production system. Explanatory drawing which similarly shows the state of the work sheath in the work area | region of a heater production system. Explanatory drawing which shows the mode of replacement | exchange of the work sheath from a transfer hanger to a work hanger similarly. Explanatory drawing which shows the modification provided with the raising / lowering means which raises / lowers a work rail. Explanatory drawing which shows the principal part of the heater production system which concerns on 2nd Embodiment of this invention. Explanatory drawing which similarly shows the modification of a heater production system. Explanatory drawing which similarly shows the other modification of a heater production system. Explanatory drawing which shows the further another modification of a heater production system similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS S Heater production system W Work sheath R1-R4 Work area P Processing apparatus 1 Transfer rail 2 Work rail 3 Transfer hanger 4 Work hanger 6 Suspension means 7 Lifting means 10, 10A Delivery short rail 10a End part 11 Passing short rail 12 Connecting member 13 Driving cylinder 20 Bending portion 21 End portion 50 Recumbent 51 Transfer hook 52 Wheel 60 Connecting material 61 Work hook 70 Wire 71 Pulley 72 Wire winding portion 73 Drive shaft

Claims (3)

A heater production system for producing a sheath type heater by performing a plurality of processes,
While providing a transfer rail,
A plurality of work areas are arranged in the order of processes along the transfer rail,
Work rails are provided in each work area,
The transfer rail and each work rail are provided so as to be discontinuous with each other,
Elevating means for elevating the work rail in the vertical direction is provided,
Provide a plurality of hangers that run on the transfer rail or work rail while hanging the work sheath ,
As the plurality of hangers, there are provided at least two types of hangers , a transfer hanger that travels on a transfer rail, and a work hanger that travels on each work rail ,
The work hanger comprises a long connecting material that is a rubber string or a coil spring suspended downward, and a work hook that is provided at the lower end of the work hanger and is hooked by a work sheath .
A heater production system characterized in that processing can be performed in a work area while a work sheath is suspended from the work hook of a work hanger traveling on the work rail. Wherein the portion corresponding to the working area of the transfer rail, said transfer heater production system of claim 1, wherein separating from the rail formed by providing a transfer short rail is moved toward the working rail. On the opposite side of the delivery short rail to the work rail, a passing short rail having the same length as the delivery short rail is arranged in parallel with a gap, and these rails are integrated in the lateral direction where the work rail is located. Drive means for switching and connecting each rail to the transfer rail so that the passing short rail is connected to the transfer rail by moving and the delivery short rail is connected to the transfer rail by moving in the opposite direction The heater production system according to claim 2 .

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