JP4361450B2 - Production management system for moving handrails for passenger conveyors - Google Patents

Description

  The present invention relates to a production management system and a production management method for manufacturing handrails for passenger conveyors in distributed factories, and relates to a passenger conveyor that can easily manage data sharing and data sharing in distributed factories, shorten delivery times, and reduce costs. The present invention relates to a production management system for moving handrails.

  Passenger conveyors such as escalators and moving sidewalks are provided with moving handrails for supporting passengers so as not to fall, and so as to move in synchronization with the moving speed of the conveyor.

  The moving handrail has a substantially C-shaped cross-section that is externally fitted to the handrail guide rail of the conveyor. Generally, a cloth or synthetic fiber slider is provided on the side abutting on the guide rail, and directly or on the outside thereof. A thermosetting rubber is provided via a belt, and a strip-like or linear stretch-proof tensile body made of metal or synthetic fiber is continuously provided along the longitudinal direction of the core material. .

  In recent years, a moving handrail has been used in which a slider layer is provided on the inner side, a thermoplastic elastomer is used as a core, and a surface layer made of a thermoplastic elastomer is provided on the outer side at least (see, for example, Patent Documents). 1).

JP-T-2002-519271

A moving handrail for a passenger conveyor using a thermoplastic elastomer has at least a two-layer structure of a core layer and a surface layer. Conventionally, the core layer and the surface layer were heat-sealed at the same factory, and then shipped as products to customers. However, the surface layer needs to be matched to the customer's order specifications, and in particular, since there are many color specifications and the like, it takes time to manufacture and takes a long time to transport, so there is a problem that the cost is high.
Only moving handrails using thermoplastic elastomers can produce core layers at specific factories and surface layers at dispersed factories. That is, with conventional rubber handrails, even if an intermediate product, for example, a product in the preforming stage, is made, the raw rubber of the material has only a month's shelf life and is difficult to store, so the core layer manufacturing factory and the surface layer manufacturing factory In other words, it was not feasible if the surface layer manufacturing plant was far away, such as overseas. On the other hand, a moving handrail using a thermoplastic elastomer can be manufactured and stocked in large quantities only at a time for the core layer.
The length of the moving handrail varies from a little less than 20 m to a large 4 to 500 m. Making long ones after the customer's specifications are determined is a process that starts with material arrangements, and the delivery time is long. Furthermore, the basic dimensions and performance of handrails are determined by the core layer, so it is desirable to manufacture them in a factory with good quality control. From this point, the core layer must be manufactured at the main factory.
On the other hand, there are an infinite number of types of colors for the surface layer, and it is necessary to obtain a customer's approval by making a color sample each time a color chip is inserted, and surface layer production is more advantageous near the customer.

  The present invention has been made to solve the above-described problems. In a distributed factory system, the core layer of the moving handrail is manufactured intensively in one factory with an emphasis on efficiency, and the surface layer is as much as possible to the customer. A production management system for passenger conveyor moving handrails that can achieve delivery time reduction, cost reduction, etc. by distributing and manufacturing at a factory close to the factory, or an optimum factory in terms of technical capability and production capacity.

In the production management system of the moving handrail for passenger conveyor according to the present invention , the manufacturing method for manufacturing the moving handrail for passenger conveyor using a thermoplastic elastomer having a core layer and a surface layer is provided. It has a main factory having a core layer extrusion molding device and a satellite factory having at least a surface layer extrusion molding device, and includes an order database and means for issuing a surface layer production instruction at the satellite factory based on the order database. is there.

The present invention includes a main factory having at least a core layer extrusion molding device and a satellite factory having at least a surface layer extrusion molding device, and means for issuing a surface layer manufacturing instruction in the satellite factory based on the order database and the order database With this, it is possible to easily build a division of labor system for manufacturing handrails and to shorten delivery times and reduce costs.

Embodiment 1 FIG.
First, a method for manufacturing a handrail for a passenger conveyor using a thermoplastic elastomer will be described.
This moving handrail manufacturing method has a substantially C-shaped cross section in which a thermoplastic elastomer for a core body layer, a metal or synthetic fiber tensile body and a slider are simultaneously extruded from a molding machine, and the tensile body and the slider are conjugated. And forming a surface layer having a substantially C-shaped cross section by extruding from a molding machine a thermoplastic elastomer for a surface layer that is transparent and is colored in a desired color such as a customer-specified color. And at least a process.

  In the above-described configuration, the thermoplastic elastomer of the intermediate layer which is different in hardness from these thermoplastic elastomers or is the same as that of the core layer and the surface layer, or is extruded and formed into a substantially C-shaped cross section is extruded. There are also things. Also, there is a configuration in which the surface layer is extruded after the core layer and the intermediate layer are extruded simultaneously. Furthermore, the core body layer and the surface layer are extruded in the order of the core body layer and the surface layer, and the core body layer, the surface layer and the intermediate layer are extruded in the order of the core body layer, the intermediate layer and the surface layer, respectively. But you can. Further, there is a configuration in which the core layer and the surface layer, or the core layer, the surface layer, and the intermediate layer are simultaneously formed by co-extrusion of a thermoplastic elastomer that forms them.

FIG. 2 is a cross-sectional view showing the left half of the moving handrail for passenger conveyor.
In FIG. 2, 30 is a moving handrail having a substantially C-shaped cross section, 31 is a core layer of the moving handrail 30 that is extruded and formed into a substantially C-shaped cross section by a thermoplastic elastomer, and 34 is along the longitudinal direction of the core body layer 31. It is a tensile body made of metal tape that is continuously wrapped. The tensile body 34 prevents the moving handrail 30 from extending in the longitudinal direction and increases the tensile strength at break. The tensile body 34 can use a plurality of low-stretch materials (not shown) made of metal or synthetic fiber cords instead of the metal tape. As the synthetic fiber, an aramid fiber, a carbon fiber, a glass fiber, a nylon fiber, or the like can be used. In addition, as the thermoplastic elastomer of the core layer 31, any one of polyurethane, polystyrene, polyolefin and the like can be used.

  32 is a surface layer provided on the outer side of the core body layer 31, which is colored in a color specified by the customer or other desired color, and is extruded and molded into a substantially C-shaped cross section with a thermoplastic elastomer. . The surface layer 32 may remain transparent or achromatic (including the material color). As the thermoplastic elastomer of the surface layer 32, any of polyurethane-based, polystyrene-based, polyolefin-based, and the like can be used in the same manner as the thermoplastic elastomer of the core layer 31. The thermoplastic elastomer molded body of the surface layer 32 has the same hardness as that of the thermoplastic elastomer molded body of the core layer 31 and a different hardness.

  Reference numeral 33 denotes a cloth slider provided inside the core body layer 31 as described above, and abuts against a handrail guide rail or a driving roller of a passenger conveyor, although not shown. The slider 33 is formed of a knitted fabric or a woven fabric of natural fibers and / or synthetic fibers. Cotton, hemp, etc. can be used as natural fibers, and fibers, such as polyester, nylon, and aramid, can be used as synthetic fibers. The slider 33 can be made of a synthetic resin sheet material in addition to the cloth. The slider 33 is folded back from the back surface side of both end portions of the core body layer 31 to the surface layer 32 side at opposite end portions of the moving handrail 30 (both sides facing each other at the opening portion of the moving handrail 30 having a substantially C-shaped cross section). The vertical end face 33a formed at substantially the same height as the thickness of the moving handrail 30, and the inclined piece 33b formed by being folded back obliquely inward from the front end side of the end face 33a. The end of the core layer 31 is wrapped by the inclined piece 33b. The outer side of the inclined piece 33b is covered with the surface layer 32.

  The slider 33 is formed to have a substantially C-shaped cross section, and both end portions thereof are bent in advance from the back surface side of the both end portions of the core body layer 31 to the surface layer 32 side to form a vertical end surface 33a. The inclined piece 33b may be formed by bending inside, and the core layer 31 may be heat-sealed later. The thermoplastic elastomer is extruded by an extrusion molding machine to form the core layer 31, and the slider 33 is simultaneously formed. It may be heat-sealed. Furthermore, both end portions of the slider 33 may be bent to form only the end face 33a in the vertical direction, and the core layer 31 may be heat-sealed, and at the same time, the tip end side of the end face 33a may be bent to form the inclined piece 33b. .

  Since the moving handrail 30 is endless (annular) and incorporated in the passenger conveyor, the linear moving handrail is cut into a predetermined length, and both ends thereof are connected to form an endless shape.

3 and 4 are diagrams showing a manufacturing process of the moving handrail for the passenger conveyor, FIG. 3 is a process chart for manufacturing the core layer, and FIG. 4 is a process chart for manufacturing the surface layer.
As described above, there is a method in which the core layer 31 and the surface layer 32 are extruded at the same time. However, if the surface layer 32 is colored in a desired color such as a customer-specified color including transparency, the surface layer 32 is It is preferable to heat-seal to the outside of the core layer 31. Since the color of the surface layer 32 is often not determined by the customer, the long core layer 31 is prepared and stocked in advance, and after the customer designates the color of the surface layer 32, This is because it is advantageous in the manufacturing process to heat-seal the surface layer 32 and cut it to a predetermined length.

In FIG. 3, the canvas 3 constituting the slider 33 is supplied from the canvas supply Tyco 1 and the metal tape 4 constituting the tensile body 34 is supplied from the metal tape supply Tyco 2 to the forming device 5 and formed into a substantially C-shaped cross section. Then, the core layer elastomer extrusion device 6 is fused with the thermoplastic elastomer to produce the handrail core layer 31 of the moving handrail 30.
The extrusion device 6 includes a main body (not shown) provided with a screw or the like that feeds the thermoplastic elastomer for the core layer, and a head (not shown) that extrudes the thermoplastic elastomer sent from the main body onto the core. ing. The handrail core layer 31 manufactured here is not particularly required to have a high processing accuracy and does not require glazing, so that a well-known extrusion device 6 is sufficient.
In this manufacturing process, the pulling force of the pulling device 9 continuously extrudes. The handrail core layer 31 is cooled in the cooling water tank 8 and is wound around the winding drum 10 by the take-up device 9 and stocked as an intermediate product.

FIG. 4 shows a manufacturing process in which the surface layer 32 is heat-sealed on the handrail core layer 31.
In FIG. 4, the handrail core layer 31 delivered from the supply Tyco 11 is a surface layer elastomer extrusion apparatus 15 provided with a heat fusion die (not shown), and a thermoplastic elastomer of a specified color is the core layer 31. After that, the surface of the moving handrail 30 is smoothed by the smoothing device 16, then cooled by the cooling water tank 8, and taken up by the take-up drum 17 by the take-up device 9.

Here, the moving handrail 30 having a cross section as shown in FIG. 2 is endless when incorporated in a passenger conveyor. Therefore, when manufacturing the moving handrail 30, it is necessary to cut the linear moving handrail into a predetermined length and then connect both ends thereof to make it endless.
This endless process may be performed at the installation site of the passenger conveyor, or may be shipped endlessly in a factory in advance. Here, a method for connecting the movable handrail 30 having the cross section of FIG. 2 in a factory will be described.

First, as shown in FIG. 5, the ends of the core body layer 31, the slider 33, and the surface layer 32 are removed from both ends of the handrail cut to a predetermined length to expose the tensile body 34. At this time, since the removed portion becomes a later connection portion, the removal dimensions from the end portions of the core layer 31, the slider 33, and the surface layer 32 are different from each other so that a step is formed instead of a straight line. desirable.
In addition, when making it into an endless form at the installation site, after cutting the moving handrail 30 to a predetermined length, the terminal processing of FIG.
Next, as shown in FIG. 6, both end portions of the exposed tensile body 34 are overlapped with each other via an adhesive 35. Thereafter, as shown in FIG. 7, both ends of the tensile body 34 are set in a mold 36 of an injection molding machine, and a cavity 36a in the mold 36 is filled with a thermoplastic elastomer for a core. By cooling and curing the thermoplastic elastomer for the core body, as shown in FIG. 8, the molding of the core body connection portion 37 is completed, and both ends of the tensile body 34 are covered and connected by the core body connection portion 37. The

Thereafter, a canvas connecting portion 38 is attached to the inside of the exposed core body 31 and the core body connecting portion 37, and as shown in FIG. 9, both ends of the moving handrail are set in the mold 39 of the injection molding machine, Further, the cavity 39a in the mold 39 is filled with the surface thermoplastic elastomer. By cooling and curing the thermoplastic elastomer for surface, as shown in FIG. 10, the surface layer connecting portion 32a is formed, and the connection of both ends of the moving handrail is completed.
According to such a connection method, both ends of the linear moving handrail can be easily and firmly connected.

FIG. 1 is a block diagram showing an example of a production management system for moving handrails for passenger conveyors according to the present invention.
In FIG. 1, 1000, 2000, and 3000 are factories arranged at different places, and may be provided in the country or in some cases, respectively.
A factory 1000 is a main factory of a mobile handrail production management system according to the present invention, and includes a factory system 100, a data center system 50, a core layer manufacturing line 120, a surface layer manufacturing line 130, and an endless manufacturing line 140.
Factories 2000 and 3000 are satellite factories of the mobile handrail production management system according to the present invention, and have factory systems 200 and 300, surface layer production lines 230 and 330, and endless production lines 240 and 340, respectively.
The factory 1000 performs core body layer manufacturing, surface layer manufacturing, and endless manufacturing of moving handrails. The factories 2000 and 3000 perform surface layer manufacturing and endless manufacturing of moving handrails.

The factory system 100 includes personal computers 101 and 102 and a data collection server 110. The data collection server 110 includes a production plan database 103, an order database 104, and a production database 105.
The factory system 200 includes personal computers 201 and 202 and a data collection server 210, and the data collection server 210 includes a production plan database 203, an order database 204, and a production database 205.
Similarly, the factory system 300 includes personal computers 301 and 302 and a data collection server 310, and the data collection server 310 includes a production plan database 303, an order database 304, and a production database 305.

In the factory system 100, personal computers 101 and 102, a production plan database 103, an order database 104, and a production database 105 are connected to a network L1. Further, the network L1 is connected to the data center system 50.
In the factory system 200, personal computers 201 and 202, a production plan database 203, an order database 204, and a production database 205 are connected to a network L2.
The factory system 300 is the same as the factory system 200, and the personal computers 301 and 302, the production plan database 303, the order database 304, and the manufacturing database 305 are connected to the network L3.

  PCs 101, 102, 201, 202, 301, and 302 are connected to networks L1, L2, and L3, respectively, and are provided with a WWW (World Wide Web) browser and an electronic mailer. Operate the plan database.

  The Internet 40 is a public line and is connected to the factory systems 100, 200, and 300. Specifically, the Internet 40 is connected to the networks L1 to L3 via a firewall (not shown). The mobile personal computer 41 is connected to the Internet 40 via a provider (not shown), and has a WWW browser and an electronic mailer.

The data center system 50 is connected to the factory system 100 via the network L1, and further collects data of the factory systems 200 and 300 via the Internet 40 and discloses the data. The data center system 50 includes a data server 51, a WWW server 52, and a mail server 53.
The data server 51 is connected to the Internet 40 via a firewall (not shown), transmits / receives data to / from the data collection servers 110, 210, 310, stores data, and uses the data to factory systems 100, 200, 300. Calculate the production plan. That is, the optimum manufacturing factory is calculated and determined according to a predetermined program for each manufacturing site (core layer, surface layer, endless), and an instruction is given together with the delivery date and specifications.

  The WWW server 52 is connected to the Internet 40 via a firewall, publishes data of the data server 51 to the Internet 40, inputs control data, and stores the data in the data server 51. The mail server 53 connects to the Internet 40 via a firewall, and transmits mail based on the data analysis of the data server 51.

  Orders from the customers 60, 70, 80 are received from the customer's personal computers 61, 71, 81 connected through a firewall (not shown) of the Internet 40, that is, from the personal computer owned by the customer or the personal computer at the sales base in the area close to the customer. Sent to the data center system 50. At this time, an order may be sent using the mobile personal computer 41. A mobile phone, PDA (Personal Digital Assistants) or the like may be used instead of the mobile personal computer 41.

The operation of the production management system for such a handrail for a passenger conveyor will be described below.
The data server 51 of the data center system 50 collects order information from the customers 60, 70, 80, and based on this collected data, the manufacturing factory selection by the color of the surface layer, the optimum number of production lots, the production factory by technology (for example, A production factory capable of handling special specifications, etc.), selection of a production factory by customer, delivery date, etc. are calculated and sent to the data collection servers 110, 210, 310 of the factory systems 100, 200, 300.
Based on the calculation result, the mail server 53 notifies by e-mail. Accordingly, the personal computers 101, 102, 201, 202, 301, 302 and the mobile personal computer 41 receive the electronic mailer. Further, the mail server 53 periodically acquires data from the data server 51 and transmits mail as a report.

  In the factory system 100, data from the data center system 50 is stored in the order database 104, a production plan is calculated along with an order forecast considering past production results, and sent to the production plan database 103. The manufacturing database 105 issues manufacturing instructions to the core layer manufacturing line 120, the surface layer manufacturing line 130, and the endless manufacturing line 140. When the instruction from the manufacturing database 105 is only the core layer, a moving handrail of only the core layer is produced and stocked.

  The stocked handrail of only the core layer is transported to the factories 2000 and 3000 in accordance with an instruction from the data center system 50.

  In the factory systems 200 and 300, production instructions from the data center system 50 are stored in the order databases 204 and 304 of the data collection servers 210 and 310, respectively, and production plans are respectively generated based on customer-specified surface layer colors, delivery times, and quantities. Databases 203 and 303 calculate production plans and send them to manufacturing databases 205 and 305. The manufacturing databases 205 and 305 give instructions to the surface layer manufacturing lines 230 and 330, and when there is an endless need, endless manufacturing lines 240 and 340, respectively, and a finished product of the handrail is manufactured and sent to the customer.

The personal computers 101, 102, 201, 202, 301, 302, and the mobile personal computer 41 make a display (data) request to the WWW server 52 through the networks L1 to L3 and the Internet 40, respectively, by the WWW browser. In response to this display request, the WWW server 52 accesses the data server 51 to acquire a desired display, for example, data for displaying the production schedule and progress, and sends it to the request source as an HTML (Hyper Text Markup Language) file. With this file, the personal computers 101, 102, 201, 202, 301, 302, and the mobile personal computer 41 perform display using a WWW browser. Needless to say, the WWW server 52 is disclosed only to a specific person using a user ID, a password, or the like.
In addition, the personal computers 101, 102, 201, 202, 301, 302, and the mobile personal computer 41 request a spreadsheet file from the WWW server 52 via the networks L1 to L3 and the Internet 40, respectively, using a WWW browser. In response to this request, the WWW server 52 accesses the data server 51 and sends desired data as a spreadsheet file to the request source. Then, the personal computers 101, 102, 201, 202, 301, 302, and the mobile personal computer 41 acquire a spreadsheet file from the WWW server 52 through the networks L1 to L3 and the Internet 40, respectively, by a WWW browser, and display them. Do.

Thus, since the data center system 50 collects data of the factory systems 100, 200, and 300 and publishes the data to the Internet 40, the system can be used for data exchange between the factory systems 100, 200, and 300. There is no need to build. Therefore, data management and data sharing of distributed factories can be easily performed. In particular, even if the manufacturers of the factory systems 100, 200, and 300 are different, data can be easily exchanged, and a division of labor system for manufacturing handrails can be easily constructed.
In addition, since the data server 51 of the data center system 50 analyzes the collected data and publishes the analyzed data to the Internet 40, it is easy to analyze even if the manufacturers of the factory systems 100, 200, and 300 are different. You can get the result.

  Further, the WWW server 52 receives the control data and passes it to the data server 51. The data server 51 passes the control data to the data collection servers 110, 210, and 310, so that remote control can be performed.

  In the present invention, the factories 1000, 2000, and 3000 arranged at different locations are not limited to specific countries, and some factories may be located overseas.

It is the block diagram which showed an example of the production management system of the moving handrail for passenger conveyors in Embodiment 1 of this invention. It is sectional drawing which shows the left half of the moving handrail for passenger conveyors. It is process drawing which shows the process of manufacturing the core layer of the moving handrail for passenger conveyors. It is process drawing which shows the process of manufacturing a moving handrail by heat-sealing a surface layer to the core body layer of the moving handrail for passenger conveyors. It is a figure which shows one process which connects the both ends of the moving handrail for passenger conveyors, and makes it endless. It is a figure which shows one process which connects the both ends of the moving handrail for passenger conveyors, and makes it endless. It is a figure which shows one process which connects the both ends of the moving handrail for passenger conveyors, and makes it endless. It is a figure which shows one process which connects the both ends of the moving handrail for passenger conveyors, and makes it endless. It is a figure which shows one process which connects the both ends of the moving handrail for passenger conveyors, and makes it endless. It is a figure which shows one process which connects the both ends of the moving handrail for passenger conveyors, and makes it endless.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Canvas supply Tyco 2 Metal tape supply Tyco 3 Canvas 4 Metal tape 5 Molding device 6 Core body layer elastomer extrusion device 8 Cooling water tank 9 Take-up device 10 Winding Tyco 11 Supply Tyco
DESCRIPTION OF SYMBOLS 15 Surface layer elastomer extrusion apparatus 16 Smoothing apparatus 17 Winding Tyco 30 Moving handrail 31 Core body layer 32 Surface layer 33 Slider 34 Tensile body 1000, 2000, 3000 Factory 100, 200, 300 Factory system 40 Internet 41 Mobile personal computer 50 Data Center system 51 Data server 52 WWW server 53 Mail server 60, 70, 80 Customer 61, 71, 81, 101, 102, 201, 202, 301, 302 Personal computer 110, 210, 310 Data collection server 103, 203, 303 Production plan Database 104, 204, 304 Order database 105, 205, 305 Manufacturing database 120 Core layer manufacturing line 130, 230, 330 Surface layer manufacturing line 140, 240, 340 Dress production line

Claims (6)

A production management system for manufacturing in a factory that distributes moving handrails for passenger conveyors using a thermoplastic elastomer having a core layer and a surface layer,
A main factory having at least a core layer extrusion molding device,
A satellite factory having at least a surface layer extrusion molding device,
A production management system for passenger handrails, comprising: an order database and means for issuing a surface layer production instruction at a satellite factory based on the order database. A production management system for manufacturing in a factory that distributes moving handrails for passenger conveyors using a thermoplastic elastomer having a core layer and a surface layer,
A main factory having at least a core layer extrusion molding device,
A satellite factory having at least a surface layer extrusion molding device,
Passenger comprising a production plan database, means for issuing a core layer manufacturing instruction at a main factory based on the production plan database, an order database, and means for issuing a surface layer manufacturing instruction at a satellite factory based on the order database Production management system for conveyor handrails. A core layer, a surface layer and a production management system for producing a thermoplastic elastomer plants dispersed the passenger conveyor handrail using with endless portion,
A main factory having at least a core layer extrusion molding device,
A satellite factory having at least a surface layer extrusion molding device and an endless molding device,
A production management system for a handrail for a passenger conveyor, comprising: an order database; and means for issuing a surface layer production instruction and an endless production instruction at a satellite factory based on the order database. A core layer, a surface layer and a production management system for producing a thermoplastic elastomer plants dispersed the passenger conveyor handrail using with endless portion,
A main factory having at least a core layer extrusion molding device,
A satellite factory having at least a surface layer extrusion molding device and an endless molding device,
A production plan database, means for issuing a core layer manufacturing instruction at a main factory based on the production plan database, an order database, and means for issuing a surface layer manufacturing instruction and an endless manufacturing instruction at a satellite factory based on the order database Production management system for moving handrails for passenger conveyors. A production management system for manufacturing in a factory that distributes moving handrails for passenger conveyors using a thermoplastic elastomer having a core layer and a surface layer,
A main factory having at least a core layer extrusion molding device and a surface layer extrusion molding device;
A satellite factory having at least a surface layer extrusion molding device,
An order database composed of delivery date, price, specifications, etc., a production database composed of technical capabilities, production capacity, etc., and means for determining the optimum surface layer extrusion production factory from the factory based on the database A production management system for moving handrails for passenger conveyors. A production management system for manufacturing in the core layer and the surface layer and the thermoplastic elastomer plants dispersed the passenger conveyor handrail using with endless portion,
A main factory having at least a core layer extrusion molding device, a surface layer extrusion molding device, and an endless molding device;
A satellite factory having at least a surface layer extrusion molding device and an endless molding device,
Order database composed of delivery date, price, specifications, etc., production database composed of technical capabilities, production capacity, etc., and means for determining optimum surface layer extrusion and endless production factory from the above factories based on said database A production management system for a moving handrail for a passenger conveyor.

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