JP4849255B2 - Work equipment - Google Patents

Description

  The present invention relates to a work facility such as a painting line in which works are sequentially transferred to a plurality of different work booths to perform predetermined work in order.

In the painting line, a workpiece loading / unloading booth that loads and unloads workpieces (workpieces) on a work transfer platform, a pretreatment booth that performs degreasing, a water washing booth, a draining drying booth, a painting booth, a baking drying booth, etc. As described above, the work is transferred to each work booth one after another to perform a predetermined work. As described in Patent Document 1, the work equipment in such a painting line is provided with a plurality of work booths along the work transfer path, along with the work transfer path, and traveling along the work transfer path. The traveling body is provided with a workpiece transfer means for transferring workpieces to and from each work booth. In this type of conventional work facility described in Patent Document 1, each work booth is provided. The work position for the work at the work transfer path is set so that the distance from the work transfer path is constant, the work loading / unloading position for each work booth of the work transfer means of the transport traveling body, and the work position for the work at each work booth Are configured to be the same.
JP-A-11-10056

  In the conventional work equipment as described above, when a transport traveling body having a work transfer means composed of a general running fork or the like is used, the workpiece unloading position of the work transfer means of the transport traveling body and The work position for the work in each work booth at the same position is relatively close to the work transfer route, and the work space on the work transfer route side of the work space around the work transferred to the work position of the work booth In particular, in the case of, for example, a work performed by an operator moving around the workpiece, for example, a manual painting operation or a workpiece loading / unloading operation on a workpiece transfer platform, it is difficult to perform the operation on the workpiece. In addition, if special work transfer means is adopted so that the work unloading position of the work transfer means of the transport traveling body is sufficiently separated from the work transfer path, the above problems can be solved, but the work Work booths that do not require a large work space around them, such as pretreatment booths and water washing booths that only inject pretreatment liquid and washing water onto the workpiece, have a large occupied area as well as painting booths and workpiece loading booths. As a result, the occupied floor area of the entire work facility increases.

An object of the present invention is to provide a work facility capable of solving the conventional problems as described above. In the invention described in claim 1, reference numerals of embodiments to be described later are given. As shown, the length in the depth direction orthogonal to the workpiece conveyance path 2 is not constant beside the workpiece conveyance path 2, the workpiece loading / unloading booths 19 and 20, and a plurality of processing booths 22 that perform various processes before and after painting. To 25 and the coating booth 21 are arranged in parallel along the workpiece transfer path 2, and each of the booths 19 to 25 has a work position Y1 to Y4 located at the center in the depth direction and the work positions Y1 to Y4. The workpiece unloading position XL is set at a position closer to the workpiece conveyance path 2 and at the same distance from the workpiece conveyance path 2, and the work positions Y1 to Y4 and the workpiece unloading position are set. Work support means 28, 34, 37, 46 for reciprocating the work W with respect to XL are arranged, and the transport traveling body 1 traveling along the work transport path 2 is provided in the booths 19 to 25. In the workpiece unloading position XL, a workpiece transfer means 10 for transferring the workpiece W to and from the workpiece support means 28, 34, 37, 46 is provided.

For carrying out the present invention configured as described above, in particular as claimed in claim 2, Wah click W is supported by the workpiece conveying platform 15, the workpiece conveying platform 15, the booths 19 A pair of left and right first supported portions 17a and 17b supported by 25 workpiece support means 28, 34, 37 and 46, and a pair of left and right second supported objects supported by the workpiece transfer means 10 of the transport traveling body 1. Support portions 18a and 18b are provided, and the work support means 28, 34, and 37 can be constituted by a pair of left and right conveyors (chain conveyors 29a and 29b) that individually support the first supported portions 17a and 17b . Further, in this case, as described in claim 3 , the workpiece W is suspended from the workpiece carrier 15, and the pair of left and right conveyors (chain conveyors 29 a and 29 b) are positioned higher than the workpiece W. Can be provided.

According to a fourth aspect of the present invention, the work booths 19 to 25 are arranged side by side on one side of the work transfer path 2, and a work storage shelf is provided along the work transfer path 2 on the opposite side of the work transfer path 2. 26, and the workpiece transfer means 10 of the transport traveling body 1 is configured so that the workpiece W can be transferred between the workpiece storage rack 26 and the workpiece storage space 26a. The 25 workpiece unloading position XL can be configured such that the distance from the workpiece transfer path 2 is equal to the workpiece unloading position XR in the workpiece storage space 26a of the workpiece storage shelf 26.

According to the work facility according to the present invention as set forth in claim 1, a work loading / unloading booth, a plurality of processing booths that perform various treatments before and after painting, and each booth of the painting booth (hereinafter collectively referred to as these booths) In the booth), the length in the depth direction perpendicular to the workpiece transfer path is not constant, and the work position set in the center of the depth direction of these work booths, that is, the workpiece is transferred from the workpiece transfer means of the transfer traveling body The work position where the work is performed on the workpiece can be freely set apart from the work transfer route according to the work content for the work at each work booth and the work equipment used together. The work space around the work in the work booth can be set to a size that is neither narrow nor too wide, suitable for work in the work booth. In other words, the floor occupied by the entire work facility including multiple work booths, such as when all work booths are constructed in accordance with the maximum work space among the work spaces required around the work in each work booth. The area does not become too large, and conversely, as in the case where all work booths are constructed to fit the smallest work space among the work spaces required around the work in each work booth, It is possible to construct a rational work facility that does not cause the inconvenience that it is difficult to work at a certain work booth.

Moreover , according to the configuration of the present invention , the workpiece transfer means of the transfer traveling body is configured to transfer the workpiece to and from the workpiece unloading position set at a fixed distance from the workpiece transfer path to each work booth. In addition, it is possible to adopt a workpiece transfer means having a conventionally well-known general configuration and to shorten the workpiece transfer stroke by the workpiece transfer means. However, it is possible to reduce the size of the workpiece transfer means of the transport traveling body and to carry out it easily and inexpensively. In this case, according to the configuration of the second aspect , the conveyor required for the work support means of each work booth can be easily constituted by a pair of left and right conveyors, for example, a chain conveyor, and the workpiece unloading position. The workpiece can be transported stably between the work position and the work position. Furthermore, according to the structure of Claim 3 , since a workpiece | work is suspended from the workpiece conveyance stand | base, and the said left-right paired conveyor is located in a high place rather than the said workpiece | work, work around a workpiece | work Work on the workpiece can be easily performed from space.

Moreover, according to the structure of Claim 4 , with respect to the workpiece | work storage shelf which can be utilized for the temporary storage etc. of the workpiece | work transferred between work booths, the conveyance traveling body which conveys a workpiece | work between each work booth, Each work booth can efficiently carry out a series of work including the temporary storage process of the work by the work storage shelf by the work transfer means provided in the transporting body. Since the workpiece unloading position is configured such that the distance from the workpiece transfer path is equal to the workpiece unloading position in the workpiece storage space of the workpiece storage shelf, the workpiece transfer means having a conventionally known general configuration is provided. In addition, the transporting traveling body can be used as it is.

  A specific embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a stacker crane type transport traveling body that can reciprocate along a horizontal linear work transport path 2. As shown in FIGS. 2 and 4, it engages with the lower carriage 4 supported by the supporting guide rail 3 laid on the floor and the steady guide rail 5 laid on the ceiling side. The upper frame 7 provided with the roller unit 6 is connected and integrated with a pair of front and rear support members 8, and a workpiece transfer means 10 is provided on an elevating carriage 9 that moves up and down between the pair of front and rear support members 8.

  The workpiece transfer means 10 is composed of a pair of left and right running forks 11 that can move in and out in both left and right directions in synchronization with each other. The running forks 11 include a fixed rail portion 12 fixed to the lower side of the elevating carriage 9, an intermediate fork portion 13 that is movable with respect to the fixed rail portion 12, and an intermediate fork portion 13 that protrudes from the intermediate fork portion 13. When the intermediate fork portion 13 is moved back and forth with respect to the fixed rail portion 12 by a conventionally known exit / retreat driving means, the final fork portion 14 becomes the intermediate fork portion 13. The final fork 14 is moved in the same direction with respect to the home position positioned at the lower center position of the lifting / lowering carriage 9 and the advancing limit positioned away from the lateral side of the lifting / lowering carriage 9. You can move to and from the position. Although the running fork 11 having one intermediate fork portion 13 is shown in the drawing, a plurality of intermediate fork portions 13 are formed in order to increase the lateral advance distance of the final stage fork portion 14 with respect to the lifting carriage 9. It is also possible to employ a running fork 11 having

  As shown in FIGS. 2 to 4, the workpiece W handled by the workpiece transfer means 10 is suspended from the platform 15 for workpiece conveyance via an appropriate suspending tool 16. The work transfer platform 15 includes a pair of left and right first supported portions 17a and 17b provided so as to project outward on the left and right sides above both left and right ends, and left and right provided on the inner sides of the supported portions 17a and 17b. The second supported portions 18a and 18b are provided with a pair of second supported portions 18a and 18b, and the second fork portions 14 of the pair of left and right running forks 11 in the workpiece transfer means 10 can be freely inserted and removed. It is comprised so that it may match.

  As shown in FIG. 1, on one side of a work transport path 2 on which the transport traveling body 1 travels, a first work unloading booth 19, a second work unloading booth 20, a painting booth 21, a pretreatment booth 22, a water wash The booth 23, the first heat treatment device 24, and the second heat treatment device 25 are arranged in this order, and a work temporary storage shelf 26 is erected over the entire area of the work transfer path 2 on the other side of the work transfer path 2. ing. The work temporary storage shelf 26 includes a large number of work storage spaces 26a that are partitioned in both the horizontal direction and the vertical direction along the work transfer path 2, and is provided above each work storage space 26a. A pair of left and right support rail members 27a and 27b on which the first supported portions 17a and 17b of the work transfer platform 15 can be placed are installed.

  The first work loading / unloading booth 19 and the second work loading / unloading booth 20 have the same structure. As shown in FIGS. 5 to 7, the supported work transfer platform 15 is orthogonal to the work transfer path 2 in these booths. A workpiece support means 28 that can be moved in the horizontal direction is provided. These work support means 28 are composed of a pair of left and right chain conveyors 29a and 29b on which the pair of left and right first supported parts 17a and 17b of the work transfer platform 15 can be placed. These chain conveyors 29a and 29b are supported by left and right side frames 30 standing in the booths 19 and 20, and are synchronously driven by motors 31a and 31b.

  As shown in FIGS. 8 and 9, the coating booth 21 is closed, which can open and close the side facing the workpiece transfer path 2 by an opening / closing shutter 32 and has an operator door 33 provided with an opening / closing door 33a. A work support means 34 having the same structure as the work support means 28 installed in the first work unloading booth 19 and the second work unloading booth 20 is provided.

  The pretreatment booth 22 and the flush booth 23 have the same structure, and as shown in FIGS. 10 and 11, the side facing the workpiece transfer path 2 can be opened and closed by an opening / closing shutter 35 and provided with an opening / closing door 36a. A work space having the same structure as the work support means 28 installed in the first work loading / unloading booth 19 and the second work loading / unloading booth 20 is formed in a closed space having an entrance 36 for the worker. A means 37 is provided, and a pipe 38 with a nozzle for injecting a pretreatment liquid and washing water to the workpiece W is provided.

  The first heat treatment device 24 and the second heat treatment device 25 have the same structure, and as shown in FIGS. 12 to 15, a two-story structure comprising a lower work relay booth 39 and a heat treatment furnace 40 provided thereon. It is. The work relay booth 39 is supported by a guide rail 41 laid on the floor surface via wheels 42 and can be reciprocated in a direction orthogonal to the path direction of the work transfer path 2 by an appropriate travel driving means. A movable table 43 and a workpiece support table 45 supported on the movable table 43 via an elevating drive means 44 are provided. On the upper side of the workpiece support 45, a workpiece support means 46 for supporting the pair of left and right first supported portions 17a and 17b of the workpiece carrier 15 is provided.

  The heat treatment furnace 40 has a lower open structure having an opening 48 in the floor 47, and is equipped with appropriate heating means for heating the inside of the heat treatment furnace 40. When the workpiece support 45 is lifted by the elevating drive means 44, the movable table 43 is inserted into the opening 48 of the heat treatment hearth 47 as shown in FIG. As shown in FIG. 12, the work transfer means 10 of the transport traveling body 1 loads and unloads the work transport platform 15 with respect to the work support means 46 on the work support base 45 as shown in FIG. 12. 12 is configured to be able to reciprocate on the guide rail 41 with respect to the second position P2, and the lifting / lowering drive means 44 of the workpiece support base 45 is configured such that the workpiece support base 45 is heat treated hearth as shown in FIG. The work transfer means 10 of the transport traveling body 1 is lowered from the opening 48 of the section 47 into the work relay booth 39 and moved to the work support means 46 on the work support base 45. The lower limit position for transferring the workpiece that can be loaded and unloaded, and the workpiece support base 45 enters the opening 48 of the heat treatment furnace floor portion 47, and the workpiece support platform 46 on the workpiece support platform 45 supports the workpiece transfer platform. The workpiece support 45 is moved up and down with respect to the movable platform 43 between the upper limit position where the workpiece W supported via 15 enters the heat treatment furnace 40.

  As shown in FIGS. 1 and 12, a plurality of specific work storage spaces 26a located directly opposite the first heat treatment apparatus 24 and the second heat treatment apparatus 25 in the work storage space 26a of the work temporary storage shelf 26 are cooled. The work storage space 26a is used as a work cooling booth 50 by disposing the air injection nozzle pipe 49 at a position that does not interfere with the work W to be stored and stored and the work suspension base 15 for hanging the work W. . A blower 51 supplies cooling air to the cooling air injection nozzle pipe 60. Any means for supplying cooling air into the work cooling booth 61 may be used. For example, an appropriate position around the work storage space 26a used as the work cooling booth 61, for example, a position that does not interfere with the work W and the work suspension base 15 that suspends the work W in the middle of the two work storage spaces 26a adjacent to each other vertically. In addition, the work cooling booth 61 can be configured with a simple configuration in which a fan that discharges air toward the upper (or lower) work storage space 26a is provided. Of course, the number and arrangement of the work storage spaces 26a used as the work cooling booth 61 are not limited to the illustrated example. For example, when the work cooling booth 61 is configured by disposing a fan that discharges air upward at the bottom of the work storage space 26a, the first heat treatment apparatus 24 and the second heat treatment apparatus 25 are directly opposite in plan view (FIG. 1). And the second work storage space 26a that is in the second step from the bottom in the side view (FIG. 12) and that is parallel to the traveling direction of the transport traveling body 1 is used as the work cooling booth 61. Can do.

  The use method of the coating line configured as described above will be described. When the work transporting platform 15 is unloaded from the work storage space 26a to be transported to and from the work storage space 26a in the temporary work storage shelf 26, Then, the transport traveling body 1 is stopped at a position facing the work storage space 26a to be unloaded, and the lifting carriage 9 is moved up and down to move the workpiece transfer means 10 (running fork 11) to the work storage space 26a to be unloaded. Stop at the issue level for. In this state, by moving the running fork 11 to the advance limit position, the second-stage fork part 14 is suspended from the support rail members 27a and 27b in the work storage space 26a. After inserting into the supported parts 18a, 18b, the workpiece carriage 15 supported by the final stage fork part 14 is moved up by a predetermined height of the elevating carriage 9 and the running movement of the running fork 11 to the home position. The lift rail 9 may be retracted from the work storage space 26a while being slightly lifted from the support rail members 27a and 27b in the work storage space 26a. On the other hand, when the work transport platform 15 is moved into the work storage space 26a from the transport traveling body 1 side, the transport traveling body 1 is stopped at a position facing the work storage space 26a to be stored, The lifting / lowering carriage 9 is moved up and down to stop the workpiece transfer means 10 (running fork 11) at the storage level with respect to the workpiece storage space 26a to be stored. In this state, the running fork 11 that suspends the work transfer platform 15 by the final stage fork portion 14 inserted into the second supported portions 18a and 18b of the work transfer platform 15 is moved from the home position to the advance limit position (workpiece). The first supported portions 17a and 17b of the work transporting platform 15 are moved by advancing to a loading / unloading position XR), and then, by lowering the lifting carriage 9 by a predetermined height and pulling the running fork 11 to the home position. What is necessary is just to mount in the support rail members 27a and 27b in the workpiece | work storage space 26a.

  In addition, the work transfer between the first traveling and unloading booths 19 and 20, the painting booth 21, the pretreatment booth 22, the water washing booth 23, the first heat treatment device 24, and the second heat treatment device 25 and the transport traveling body 1. For the transfer of the gantry 15 as well, the above-described entry / exit operation target is merely required when the advancement direction of the running fork 11 with respect to the lifting / lowering carriage 9 on the transport traveling body 1 side is opposite to the side where the work temporary storage shelf 26 is located. This is carried out in the same manner as the transfer of the workpiece carrier 15 between the workpiece storage space 26a and the carrier 1 for conveyance. As shown in FIG. 4, the advance limit position when the running fork 11 advances and moves in the left and right directions, that is, the workpiece unloading positions XR and XL as viewed from the conveyance traveling body 1 are also moved to the left and right sides. The workpiece loading / unloading position XR on the workpiece temporary storage shelf 26 side is the same distance from the center of the conveyance traveling body 1 (the center position in the width direction of the workpiece conveyance path 2). It is approximately the center position in the depth direction.

  Hereinafter, a method for using the coating equipment having the above-described configuration will be described in detail. In order to perform the work of suspending the workpiece W on the workpiece transfer platform 15, the first workpiece unloading booth in which the empty workpiece transfer platform 15 is empty is used. 19 or the second work loading / unloading booth 20 is prepared. That is, when the empty work transfer platform 15 is stored and stored using a specific work storage space 26a of the work temporary storage shelf 26, the empty work transfer stand 1 is used using the transfer traveling body 1. When 15 is delivered to the first work unloading booth 19 or the second work unloading booth 20, and there is a work transfer platform 15 left in the first work unloading booth 19 or the second work unloading booth 20 in an empty state. The empty work transfer platform 15 can be used.

  For example, an empty work transfer platform 15 that is delivered into the first work unloading booth 19 by the transfer traveling body 1 is, as shown in FIG. 5, at the work unloading position XL viewed from the transfer traveling body 1. Since the supported portions 17a and 17b are lowered to be placed on the chain conveyors 29a and 29b of the workpiece support means 28, the empty conveyors 29a and 29b are operated and the workpiece loading position XL is empty. 15 is transported in a direction away from the work transport path 2 to the work position Y1 which is substantially the center in the depth direction of the first work unloading booth 19. As a result, the work W can be easily suspended from the empty work transfer platform 15 by using the wide space around the entire empty work transfer platform 15. The work transport platform 15 from which the work W is suspended is transported to the work unloading position XL of the original transport traveling body 1 by operating the chain conveyors 29a and 29b in the opposite direction again.

  For example, if a workpiece W (hereinafter simply referred to as a workpiece W) suspended from the workpiece carrier 15 is prepared at the workpiece loading position XL of the first workpiece loading booth 19 as described above, this is used for the conveyance run. It is conveyed by the body 1 to the pretreatment booth 22. If the work W does not require degreasing and cleaning with the degreasing chemical solution in the pretreatment booth 22 and only requires water washing, the work W is conveyed to the water washing booth 23. When the work W is carried into the pretreatment booth 22 or the washing booth 23, the opening / closing shutter 35 shown in FIGS. 10 and 11 is opened, and the chain conveyor 29a of the work support means 37 provided in the pretreatment booth 22 or the washing booth 23 is provided. The workpiece W is lowered at the workpiece unloading position XL as viewed from the conveyance traveling body 1 in a state where the first supported portions 17a and 17b of the workpiece conveyance platform 15 are placed on 29b. After this (after the running fork 11 is pulled into the home position), the open / close shutter 35 is closed and the chain conveyors 29a and 29b are operated so that the workpiece transfer platform 15 at the workpiece unloading position XL is moved to the pretreatment booth 22 or The washing booth 23 is conveyed in a direction away from the workpiece conveyance path 2 to the work position Y2 which is substantially in the center in the depth direction. Thereby, since the workpiece | work W suspended by the workpiece | work conveyance mount frame 15 respond | corresponds suitably to these piping 38 with a nozzle with which the pretreatment booth 22 or the water washing booth 23 is equipped, it pre-processes to piping 38 with a nozzle. A liquid (degreasing chemical solution) or washing water can be supplied, and the desired pretreatment or washing with respect to the workpiece W can be suitably performed.

  The workpiece W that has been pre-treated in the pre-treatment booth 22 or rinsed in the water washing booth 23 is operated again in the reverse direction by moving the chain conveyors 29a and 29b in the reverse direction, and is viewed from the original transporting traveling body 1 from the work position Y2. Then, the workpiece is transferred to the workpiece unloading position XL, and the opening / closing shutter 35 is opened. Then, the workpiece is taken out by the conveyor 1 and conveyed to the next booth. That is, the work W that has been pretreated in the pretreatment booth 22 is transported to the washing booth 23 and washed with water, and the work W that has been washed in the washing booth 23 is divided into the first heat treatment device 24 and the second heat treatment device. 25, it can be carried into, for example, the first heat treatment device 24 in an empty state and drained and dried.

  The first heat treatment apparatus 24 will be described as an example. In the first heat treatment apparatus 24 into which the workpiece W is loaded, the movable platform 43 of the workpiece relay booth 39 is moved by a lifting / lowering drive means 44 as shown in FIG. Is moved to the second position P2 where the work transfer platform 15 can be loaded and unloaded, and is kept waiting.

  Thus, the work W taken out from the washing booth 23 by the transport traveling body 1 is waiting at the second position P2 in the work relay booth 39 of the first heat treatment apparatus 24 by the transport traveling body 1. The first supported portions 17a and 17b of the work transfer platform 15 that suspends the work W are supported on the work support means 46 on the work support base 45 that is on the movable base 43 and in the lower limit position. In the state of being placed on the support rail member 48b of the means 46, as shown in FIG. 12, it can be transferred at the workpiece unloading position XL as seen from the traveling body 1 for conveyance. Next, as shown in FIG. 14, the movable table 43 is moved from the second position P2 to the first position P1, and then the lifting / lowering drive means 44 on the movable table 43 is operated to move the work support table 45 to the upper limit position. Raise to. As a result, the workpiece support base 45 enters the opening 48 of the heat treatment furnace floor portion 47, the workpiece support base 45 is closed at the opening 48, and the workpiece support means 46 on the workpiece support base 45 is moved to the workpiece support means 46. The workpiece W in a state of being suspended through the transfer platform 15 is loaded into the heat treatment furnace 40. The work W charged in the heat treatment furnace 40 in this way has moved in a direction away from the work transfer path 2 by a required distance from the work unloading position XL viewed from the transfer traveling body 1 in a plan view (work position Y4 ( 1 and 13), the heat treatment furnace 40 is located at a substantially central position.

  When the workpiece W is inserted into the heat treatment furnace 40, the heating means provided in the heat treatment furnace 40 is operated to drain and dry the work W suspended in the air in the heat treatment furnace 40. Can be done. When draining and drying for a predetermined time is completed, the work support base 45 is lowered to the lower limit position, and the work W is escaped from the heat treatment furnace 40 to the lower work relay booth 39 through the opening 48 and the movable base 43 is moved to the first position. The workpiece W (work transfer platform 15) supported by the workpiece support means 46 on the workpiece support 45 is moved from the first position P1 to the second position P2 to the workpiece unloading position XL as viewed from the transfer traveling body 1. By returning it, the drained and dried workpiece W can be received by the transport traveling body 1 and transported to the coating booth 21 for coating in the next step.

  Also in the painting booth 21, as shown in FIGS. 8 and 9, the workpiece W is placed on the chain conveyors 29 a and 29 b of the workpiece support means 34 on the first conveyor 15 of the workpiece transfer platform 15 with the opening / closing shutter 32 opened. By placing the support portions 17a and 17b, the workpiece is lowered to the workpiece unloading position XL as viewed from the transport traveling body 1. After this (after the running fork 11 is pulled into the home position), the open / close shutter 32 is closed, and the chain conveyors 29a and 29b are operated so that the workpiece transfer platform 15 at the workpiece unloading position XL is moved to the depth of the coating booth 21. The workpiece is transported in a direction away from the workpiece transport path 2 to the work position Y3 that is substantially in the center of the direction. As a result, since the workpiece W is suspended at a substantially central position of the painting booth 21, a sufficient work space is secured around the workpiece W. For example, even in a manual painting operation using a spray gun, The painting operation can be performed easily and satisfactorily.

  The finished work W is again transported from the work position Y3 to the work unloading position XL as seen from the original transporting body 1 by opening the chain conveyors 29a and 29b in the reverse direction, and the opening / closing shutter 32 is opened. After that, it can be taken out by the transporting traveling body 1 and transported to the booth of the next stage process. In other words, the workpiece W that has been painted can be carried into, for example, the first heat treatment device 24 in an empty state of the first heat treatment device 24 and the second heat treatment device 25 and subjected to baking and drying processing. For the heat treatment, the work W is transported by the transporting traveling body 1 and charged into the heat treatment furnace 40 of the first heat treatment apparatus 24 or the second heat treatment apparatus 25 and the heat-treated work W is transported by the transporting traveling body 1. The procedure of receiving is the same as the procedure at the time of carrying out the draining and drying process described above, and thus the description thereof is omitted.

  Whether the work W that has been coated and does not require a baking and drying process is loaded into the heat treatment furnace 40 of the first heat treatment apparatus 24 or the second heat treatment apparatus 25 to forcibly perform the coating film drying process. Or it can move to the empty work storage space 26a of the temporary work storage shelf 26 and leave it for a required time to dry naturally. The work W that has been subjected to the forced coating film drying process or the baking and drying process W in the first heat treatment apparatus 24 or the second heat treatment apparatus 25 is moved into the empty work storage space 26a of the work temporary storage shelf 26 and left for a required time. However, when forced cooling is required, the work W is stored in the work storage space 26a as the work cooling booth 50 located opposite the first heat treatment apparatus 24 or the second heat treatment apparatus 25. The work W stored in the work cooling booth 50 can be forcibly cooled by operating the blower 51 connected to the work cooling booth 50 and injecting cooling air from the cooling air injection nozzle pipe 49. it can.

  The workpiece W stored and stored in the workpiece temporary storage shelf 26 after the cooling time has passed is delivered to the first workpiece loading / unloading booth 19 or the second workpiece loading / unloading booth 20 by the transporting traveling body 1, and these workpiece loading / unloading booth 19. , 20, the workpiece W can be removed from the workpiece carrier 15 moved to the work position Y1 and carried out.

It is a schematic plan view of the whole coating line which shows one Embodiment of this invention. It is a side view of the traveling body for conveyance which conveys a workpiece | work. It is a front view which shows the storage storage state of the workpiece | work in a workpiece | work temporary storage shelf. It is a vertical front view explaining the workpiece transfer means of the traveling body for conveyance. It is a top view which shows a work loading / unloading booth. It is a rear view which shows the work loading / unloading booth. It is a vertical side view which shows the work loading / unloading booth and the traveling body for conveyance. It is a vertical side view which shows a coating booth and a traveling body for conveyance. It is a cross-sectional top view which shows the painting booth. It is a vertical side view which shows a pre-processing booth or a water washing booth, and a traveling body for conveyance. It is a cross-sectional top view which shows a pretreatment booth and a flush booth. It is a vertical side view which shows a heat processing apparatus, the traveling body for conveyance, and a workpiece | work cooling booth. Ru longitudinal side view showing a heat treatment apparatus in a state in which the workpiece is loaded.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Transfer traveling body 2 Work conveyance path | route 9 Lifting carriage 10 Work transfer means 11 Running fork 15 Work conveyance mounts 17a, 17b First supported parts 18a, 18b Second supported parts 19 First work loading / unloading booth 20 Second Work loading / unloading booth 21 Painting booth 22 Pretreatment booth 23 Flushing booth 24 First heat treatment device 25 Second heat treatment device 26 Work temporary storage shelves 28, 34, 37, 46 Work support means 29a, 29b Chain conveyor 32, 35 Open / close shutter 39 Work Relay booth 40 Heat treatment furnace 43 Movable table 44 Elevating drive means 45 Work support table 48 Opening 49 Cooling air injection nozzle tube 50 Work cooling booth 51 Blower W Workpiece (workpiece)
XR, XL Work loading / unloading position Y1-Y3 Working position

Claims (4)

Beside the workpiece transfer path, the length in the depth direction perpendicular to the workpiece transfer path is not constant, the workpiece loading / unloading booth, multiple processing booths that perform various processes before and after painting, and the coating booth Each booth is arranged side by side along the path, and each booth has a work position located in the center in the depth direction, and a work that is closer to the work transfer path than the work position and separated from the work transfer path by the same distance. In addition to setting a loading / unloading position, a work support means for reciprocating the work between the work position and the work loading / unloading position is provided. Work equipment provided with workpiece transfer means for transferring a workpiece to and from the workpiece support means at the workpiece unloading position . The workpiece is supported by a workpiece transfer platform, and the workpiece transfer platform includes a pair of left and right first supported parts supported by the workpiece support unit in each booth, and the workpiece transfer unit of the transfer traveling body. 2. The work according to claim 1, further comprising a pair of left and right second supported parts supported by the work, wherein the work support means includes a pair of left and right conveyors that individually support the first supported part. Facility. The work equipment according to claim 2 , wherein the work is suspended from the work transfer platform, and the pair of left and right conveyors are provided at a higher position than the work. The booths are arranged in parallel on one side of the workpiece conveyance path, a workpiece storage shelf is erected along the workpiece conveyance path on the opposite side of the workpiece conveyance path, and the workpiece transfer means of the conveyance traveling body includes: It is configured so that workpieces can be transferred to and from the workpiece storage space of this workpiece storage shelf, and the work loading / unloading position of each booth is set so that the distance from the workpiece transport path is the workpiece loading / unloading within the workpiece storage space of the workpiece storage shelf. The work equipment according to claim 1, wherein the work equipment is configured to be equal to a position .

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