JP4945173B2 - Lifting dryer - Google Patents

Description

  The present invention relates to an elevating dryer that dries an article to which an adhesive, a drug, a solvent, or the like is attached.

Techniques relating to drying of articles are disclosed in Patent Documents 1 and 2. The drying furnace of Patent Document 1 has openings formed on both sides thereof, and the article is dried in the process of placing the article on a conveyor, carrying it into one opening of the drying furnace, and carrying it out from the other opening. In the drying apparatus of Patent Document 2, a plurality of baskets for receiving articles are arranged radially around a rotation axis in a hot-air circulating furnace, and in the process in which the articles swirl around the rotation axis together with these baskets. The article is dried.
JP-A-5-115826 Japanese Patent Laid-Open No. 9-42834

  The inside of the drying furnace is set to a size that allows an article to be carried in a horizontal posture to stand once and then return to the horizontal posture again. For this reason, the distance from one opening to the other opening corresponds to at least 3 to 4 times the length of the article, and it is difficult to reduce the size of the drying furnace so as to have a size smaller than this. When the drying furnace is applied to an existing production line, a large space for installing the drying furnace must be secured in the middle of the production line, and a significant change of the existing production line is inevitable. Moreover, since the hot-air circulating furnace of the above-described drying apparatus is set to a size that allows a plurality of baskets to swivel, it is difficult to downsize the drying apparatus.

  Therefore, an object of the present invention is to provide an elevating drying apparatus that can be easily installed even in a narrow space in a factory and can be installed without greatly modifying an existing production line.

An elevating drying apparatus according to the present invention includes a drying furnace in which one opening that allows an article to be taken in and out is formed, and a plurality of storage units that are supported in the drying furnace so as to be movable up and down and overlap each other in the vertical direction. A shelf body, lifting and lowering means for raising and lowering the shelf body, hot air supply means for supplying hot air to the inside of the drying furnace, and transporting the article outside the drying furnace. A conveying means that can be positioned so as to face the opening of the drying furnace; and a support body that receives an article positioned so as to face the opening of the drying furnace, and the support body enters the inside of the drying furnace from the opening. The transfer means for carrying the article from the shelf by carrying it forward so that the article is carried into the shelf, and the support is moved backward so as to exit from the opening to the outside of the drying furnace. And be prepared And wherein the Rukoto.

The present invention provides a drying furnace in which an opening through which an article can be taken in and out is formed, a shelf body that is supported so as to be movable up and down inside the drying furnace, and that has a plurality of storage portions that overlap each other in the vertical direction, and the shelf body Elevating means for elevating and lowering, hot air supply means for supplying hot air to the inside of the drying furnace, and transporting the article outside the drying furnace, so that the article is opposed to the opening of the drying furnace in this transport process Conveying means capable of positioning; and transfer means for carrying the article positioned by the conveying means into the shelf or carrying the article carried into the shelf from the shelf to the conveying means. An elevating drying apparatus comprising: the transfer means installed from the outside of the drying furnace so as to face the opening; and a support body that receives the article; and the support body enters the opening of the drying furnace. Posture to do, or said An advancing / retreating drive means for operating in a posture retreating from the mouth, and when the support body enters the opening, the article is carried into the shelf body, and when the support body retreats from the opening, The article is carried out from the shelf.

  Further, the transport means has a pair of transport heads separated from each other in the transport direction for transporting the article, transport drive means for causing the movable member to run or stop in the transport direction, and the transport head And suction means for supplying the suction force for sucking the article or releasing the article from the transport head by interrupting the suction force.

  Furthermore, the elevating drying apparatus according to the present invention includes two load receiving portions spaced in the transport direction, and the two load receiving portions are separated from the support by a distance at which the pair of transport heads are separated from each other. It is characterized by being arranged at the same interval.

  Furthermore, in the elevating drying apparatus according to the present invention, the hot air supply means is disposed close to one of the interiors of the drying furnace, and one standing pipe having an air hole opened in the interior of the drying furnace, and the drying The other standing pipe arranged close to the other inside of the furnace and having a vent hole opened inside the drying furnace and the air inside the drying furnace are sucked and heated through the vent hole of the one standing pipe. And a blower heating means for generating hot air and introducing the hot air into the inside of the drying furnace through the vent holes of the other upright pipes.

  The elevating drying apparatus according to the present invention positions the article so as to face the opening of the drying furnace in a process in which the conveying means conveys the article outside the drying furnace, and the article is moved to a plurality of stages of the shelf by the transfer means. Can be carried into one of the storage units. In this way, each time the transfer means carries an article, the elevating means raises or lowers the shelf body by a height corresponding to the height dimension per one stage of the storage unit, so that each shelf body can be individually moved. The articles can be sequentially loaded into the storage units, and finally the articles can be stored one by one in all the storage units of the shelf. Further, while the transfer means repeatedly carries the articles into the shelf, all the articles carried into the shelf are dried by the hot air supplied from the hot air supply means to the inside of the drying furnace.

  Subsequently, among all the articles carried into the shelf body, the transfer means first carries out the article carried into the shelf body from the shelf body to the outside of the drying furnace. Thereafter, the article is conveyed to another place by the conveying means. On the other hand, each time the transfer means carries out the article, the elevating means raises or lowers the shelf body by a height corresponding to the height dimension per one stage of the storage unit. Articles stored in individual storage units can be sequentially carried out. Thereby, since each article | item can be carried out from a shelf body according to the order in which each was carried in to the shelf body, the time when several articles | goods are dried inside a drying furnace can be equalized uniformly.

  Therefore, according to the elevating dryer according to the present invention, it is possible to uniformly dry a plurality of articles. In addition, since all articles stored in the shelf can be stacked in the vertical direction, it is not necessary to secure a particularly large place for installing the apparatus. In addition, the conveying means conveys the article in one direction, and the transfer means reciprocates the article between the conveying means and the shelf so that the article can be carried in and out as described above. For this reason, when installing the said apparatus in the middle of the existing manufacturing line, for example, it is almost unnecessary to change the direction which this manufacturing line conveys articles | goods. Therefore, it is possible to reduce the cost, time and labor required for installation of the apparatus.

  Further, according to the hot air supply means of the elevating drying apparatus according to the present invention, the air inside the drying furnace is sucked and heated by the heating air blowing means through the vent hole of one standing pipe. The hot air generated thereby is introduced into the inside of the drying furnace through the vent holes of other upright pipes. Moreover, since the hot air supply means can form a flow from one upright pipe to another upright pipe inside the drying furnace, the hot air is prevented from collecting near the top of the drying furnace, The articles stored in all the storage units can be dried at a uniform temperature.

  Further, in the transporting means of the elevating drying apparatus according to the present invention, the suction means supplies the suction force to the transport head of the movable member, and the suction force causes the article to be attracted to the transport head, and the transport driving means travels the movable member. By doing so, the article can be conveyed in accordance with the traveling of the movable member. In this transport process, the transport drive means stops the movable member when the article adsorbed on the transport head overlaps above the support installed so as to face the opening from the outside of the drying furnace. In this state, when the suction means cuts off the suction force, the article is released from the transport head and received by the support. Thereby, the article can be positioned so as to face the opening from the outside of the drying furnace.

  Further, the movable member has a pair of transport heads that are separated from each other in the transport direction, and the distance between the pair of transport heads that are separated from each other by the two load receiving portions disposed at the front and the rear in the transport direction. The same interval may be opened. In this case, two articles can be conveyed at a time using a pair of conveying heads as follows.

  That is, in the state that the article is received by the support and the receiving part at the rear in the conveying direction, these two articles are respectively adsorbed by the pair of conveying heads, and the conveying driving means is the movable member as described above. When traveling, the article adsorbed by one of the pair of transport heads moves from the top of the support to a position where it overlaps above the load receiving portion in front of the support in the transport direction. . At the same time, the article adsorbed by the other transport head of the pair of transport heads moves from the top of the load receiving portion located behind the support in the transport direction to a position overlapping the support. At this point, when the conveyance driving means stops the movable member and cuts off the suction force, the article released from one of the conveyance heads is received by the load receiving portion in the conveyance direction with respect to the support body, The article released from the other transport head is received by the support.

  Therefore, according to the elevating dryer according to the present invention, the distance traveled by the pair of transport heads for transporting two articles can be set to a minimum, and the number of operations of the transport driving means can be reduced. it can. For this reason, in addition to the advantage that it is not necessary to secure a particularly large place for installing the apparatus, the control of the transport driving means can be simplified.

  Since a well-known technique can be applied to the drive source, guide means, or feed means described below, illustration or description of each is omitted. For example, a rotating machine such as a servo motor or an electric cylinder, an air cylinder, or a hydraulic cylinder that extends and contracts an operating rod according to the operation of the rotating machine is applied as a drive source. As the guide means, a sliding treatment is applied in which a slider is slidably engaged with a guide rail. As the feeding means, a turning treatment in which a ball nut is screwed into a feeding screw is applied.

  1 and 2, the elevating drying apparatus 1 is supported in a drying furnace 2 in which one opening 22 through which an article can be passed is formed in a wall member 21 facing the front, and is supported in the drying furnace 2 so as to be movable up and down. Shelf 3, lifting / lowering means 4 for raising / lowering shelf 3, hot air supply means 5 for supplying hot air into drying furnace 2, transport means 6 for transporting articles outside drying furnace 2, and drying furnace 2 is provided with a transfer means 7 for carrying articles to the shelf 3 from the outside, or carrying articles from the shelf 3 to the outside of the drying furnace 2.

  The interior of the drying furnace 2 is a rectangular space defined by a top surface of the upper member 23 that closes the upper side, a bottom surface of the lower member 24 that closes the lower side, and wall members 21 and 25 that close the four side surfaces. Two struts 26 are provided on both sides in the x-axis direction inside the drying furnace 2 so as to stand along the z-axis. The x and y axes in the figure indicate the horizontal direction, and the z axis indicates the vertical direction. For convenience of explanation, the x, y, and z axes indicate consistent directions in all drawings, but these axial directions limit the posture in which the elevating dryer 1 is installed or the direction in which it operates. There is no.

  The shelf 3 has a frame 32 having a plurality of storage portions 31 that overlap each other in the vertical direction, a plurality of trays 33 that can receive articles on the upper surface, and an inward pair on each side of the frame 32 for each storage portion 31. And a plurality of claws 34. Each tray 33 is stored in a horizontal posture one by one in the storage portion 31 of the frame 32 with both sides of the lower surface thereof being hooked by the pair of claws 34. The frame 32 is guided so as to be movable up and down in the z-axis direction by guide means 35 engaged with the pillars 26 on both sides thereof.

  Further, one end of each of two checkers 41 made of a wire rope or the like is connected to both sides of the upper end of the frame 32. Each checker 41 extends through the upper member 23 of the drying furnace 2 to the outside of the drying furnace 2 and is wound around two pulleys 42 arranged in the y-axis direction. These pulleys 42 guide the other end of the check body 41 so as to hang down behind the drying furnace 2. The other ends of the two checkers 41 are connected to one counterweight 43, respectively. The elevating means 4 includes two checkers 41, four pulleys 42, a counterweight 43, a guide means 44 for guiding the counterweight 43 so as to be movable up and down in the z-axis direction, and the counterweight 43 in the z-axis direction. It comprises a feeding means 45 that moves up and down.

  As the feed means 45, for example, a ball nut attached to the counterweight 43 and this ball nut screwed to a feed screw extending in the z-axis direction can be applied. When the feed screw of the feed means 45 is rotated by a rotating machine and the counterweight 43 is raised together with the ball nut, the shelf 3 is lowered inside the drying furnace 2. On the other hand, when the ball nut is lowered according to the rotation of the feed screw, the shelf 3 is raised inside the drying furnace 2. Further, when the ball nut is at an upper limit, a lower limit, or a height in the middle of the ball nut, when the rotating machine stops, the shelf 3 is immediately stopped and held at that position.

  As shown in FIG. 2, the hot air supply means 5 is provided with one upright pipe 51 provided close to one of the both side surfaces of the drying furnace 2 and two hot air supply means 5 provided near the other of the both side surfaces of the drying furnace 2. The other standing pipe 52 and the blast heating means 53 are provided. One standing pipe 51 has a plurality of vent holes 54 opened inside the drying furnace 2. Similarly, the other standing pipes 52 have a plurality of vent holes 54. The illustrated vent holes 54 are all facing the front, but if one upright pipe 51 and the other upright pipe 52 are attached so as to be rotatable with respect to the drying furnace 2, the orientation of the vent holes 54 is It can be changed as desired. Further, an exhaust pipe 55 may be disposed in the vicinity of the bottom surface of the drying furnace 2 in order to extract a gas having a specific gravity higher than that of air from the inside of the drying furnace 2. In this case, the exhaust pipe 55 is disposed near the top surface.

  The blower heating means 53 includes a blower 56 having a suction port connected to the upper end of one standing pipe 51, and a heater 57 composed of an electric heater provided between the exhaust port of the blower 56 and the upper end of another standing pipe 52. Is provided. The air inside the drying furnace 2 is sucked into the blower 56 through the vent hole 54 of the one standing pipe 51 and is heated while passing through the heater 57 immediately after being exhausted from the blower 56. The hot air generated thereby flows into the drying furnace 2 through the vent holes 54 of the other upright pipes 52. Further, since the hot air flows from the other standing pipe 52 toward the one standing pipe 51, the hot air flows through the inside of the drying furnace 2 evenly.

  In addition, an outside air introduction path through which air outside the drying furnace 2 can be introduced using a negative pressure generated on the suction port side of the blower 56 is provided in the middle of the suction path from the one standing pipe 51 to the blower 56. A damper or the like that allows or restricts the air outside the drying furnace 2 from flowing into the introduction path may be provided. Further, a thermocouple may be attached to the upper member 23 of the drying furnace 2, and the heating temperature of the air by the heater 57 may be controlled based on the temperature inside the drying furnace 2 detected by the thermocouple.

  FIG. 3 shows the conveyance means 6 and the transfer means 7 in FIG. 1 in detail. FIG. 4 shows a form in which the transport unit 6 and the transfer unit 7 of FIG. 3 are viewed from the arrow Y direction. FIG. 5 is a plan view of the transfer means 7, and the transport means 6 overlapping above is omitted.

  As shown in FIGS. 3 and 4, the transport unit 6 includes a movable member 62 having a pair of transport heads 60 and 61 that are separated from each other in the x-axis direction, and a transport drive that causes the movable member 62 to run or stop in the x-axis direction. Means 63 and adsorption means described later are provided. The transport drive means 63 attaches the base plate 13 to the upper surface of the gantry 11 via the stay 12, attaches to the upper surface of the base plate 13 a drive source 65 that moves or stops the slider 64 in the x-axis direction, and further slides. A movable member 62 is attached to the top of the child 64. Reference numeral 66 in FIG. 3 indicates guide means for guiding the movable member 62 to be slidable in the x-axis direction.

  Drive sources 67 are provided on both sides of the movable member 62 in the x-axis direction. Each drive source 67 has its cylinder main body fixed to the upper surface of the movable member 62, and extends and contracts in the z-axis direction the operating rod 68 protruding downward from the movable member 62. Each conveying head 61 includes a downward groove-shaped hanger 681 attached to the lower end of the operating rod 68, a rod body 682 hung inside the hanger 681, a plurality of holders 683 fixed to the rod body 682, A suction pad 69 suspended from each of a plurality of holders 683 is provided.

  For example, the suction means connects a vacuum line piped to a vacuum pump or a factory to the suction pad 69 via a flexible hose, etc., and sucks articles to the suction pad 69 using these negative pressures. The suction force is generated. In addition, if a solenoid type on-off valve is provided in the middle of the flexible hose, the above suction force can be cut off by closing the on-off valve in a timely manner. Each holder 683 is fastened to the rod body 682 with a bolt not shown in the drawing, and when the bolt is loosened, the holder 683 can move along the rod body 682 with the suction pad 69. Further, the shaft portion of each suction pad 69 is fastened to the holder 683 with a nut not shown in the drawing, and when this nut is loosened, it can move in the y-axis direction with respect to the holder 683. Reference numeral 684 indicates one of a plurality of guide means for guiding the transport head 61 so as to be movable up and down in the z-axis direction.

  When the drive source 67 shown in FIG. 4 extends the operating rod 68 downward, the transport head 61 descends from the position shown in the drawing, and brings the suction pad 69 into contact with any article placed directly below the position. Subsequently, when the suction means supplies the suction force to the transport head 61 and the drive source 67 shortens the operating rod 68, the transport head 61 rises to the height shown in the drawing, so that the article can be pulled up. it can. Hereinafter, this operation is simply referred to as “hold”.

  When the drive source 63 moves the slider 64 in the x-axis direction while the article is held by the transport head 61, the article can be transported in the same direction. Further, when the driving source 67 extends the operating rod 68 downward to lower the transport head 61 and cut off the suction force supplied to the suction pad 69, the article can be released from the transport head 61. This operation is simply referred to as “release” below.

  As shown in FIGS. 4 and 5, the transfer means 7 includes a support body 71 provided at a position facing the opening 22 from the outside of the drying furnace 2, and the support body 71 can freely move in and out of the opening 22 of the drying furnace 2. And advancing / retreating drive means 73 for advancing / retreating. The support body 71 is a plate material in which a pair of fork portions 72 are formed. The advancing / retreating drive means 73 is provided with a pair of guide means 74 for slidably guiding the support body 71 in the direction of the arrow y, and is attached to the upper surface of the gantry 11, and between these guide means 74, the slider 75 is placed in the y-axis direction. A drive source 76 for moving or stopping is attached, and a support 71 is connected to the upper part of the slider 75.

  When the advance / retreat driving means 73 moves the slider 75 in the y-axis direction, the tray 33 moves together with the support 71 in the same direction. Hereinafter, the movement of the support 71 in the direction away from the drying furnace 2 is referred to as “retreat”. FIG. 1 shows a state in which the support body 71 has reached the limit at which it can move backward. In addition, the movement of the support 71 toward the drying furnace 2 is hereinafter referred to as “advance”. Reference numeral 27 in FIG. 1 indicates a shutter that opens the opening 22 when the support 71 advances. FIG. 5 shows a state in which the support 71 has reached its limit for advancement.

  On the upper surface of the support 71, a pair of drive sources 78 that extend and contract the operating rod 77 toward the respective tips of the pair of fork portions 72 are provided. Here, the tip is a portion directed to the opening 22 of the drying furnace 2 shown in FIG. Since the tips of the individual fork portions 72 are bent upward, when the tray 33 is supported by the pair of fork portions 72, when the pair of drive sources 78 extend the operating rod 77, the tips of the fork portions 72 are moved. The tray 33 to be extruded hits the tip of the fork part 72. As a result, the tray 33 can be positioned with respect to the support 71.

  As an example of the article, a rectangular glass panel in which an adhesive is applied to the edge of the upper surface thereof is cited, and a process of drying such an article by the elevating dryer 1 will be described. The operation of the elevating drying apparatus 1 described below is realized by the operation of each drive source described above, and the electric signal from the sensors or the memory that can be accessed by the computer that controls each drive source described above. It shall follow the program written on the medium. The following English letters at the beginning of the sentence are indicators for dividing the process.

  A: The transfer means 7 moves the support 71 back to the position shown in FIG. The computer recognizes one of the plurality of storage units, and operates the elevating means 4 so that the height of the one storage unit is substantially the same as the opening 22. That is, although this process is repeatedly performed later, first, the computer recognizes the first stage (lowermost stage) of the plurality of storage units 31 as an entry / exit target. And as shown in FIG. 1, the raising / lowering means 4 raises the shelf 3 until the height of the storage part 31 of an in / out target reaches substantially the same height as the opening 22.

  B: When the transfer means 7 moves the support 71 forward, the support 71 enters the inside of the drying furnace 2 through the opening 22 and reaches the position indicated by the phantom line in FIG. At this time, as shown in FIG. 8A, the tray 33 stored in the storage unit 31 of the access target is positioned slightly above the fork portion 72 of the support 71.

  C: The raising / lowering means 4 lowers the shelf 3. As a result, as shown in FIG. 8B, the fork portion 72 of the support body 71 is relatively higher than the claw 34 of the storage unit 31 of the access target, so that the tray 33 is lifted from the claw 34 and supported. Supported by the body 71. The height at which the shelf 3 is lowered in this step corresponds to 1/3 to 1/2 of the height dimension h of the storage unit 31 per stage.

  D: When the transfer means 7 moves the support 71 backward, the support 71 moves out of the drying furnace 2 from the opening 22 and reaches the position indicated by the solid line in FIG. At the same time, the tray 33 supported by the support 71 is also unloaded from the shelf 3 and moved from the outside of the drying furnace 2 to a position facing the opening 22.

  FIG. 9 shows the position where the movable member 62 of the conveying means 6 stands by in a solid line. The article P is prepared in the receiving part 14 after being subjected to some pre-processing. Since the distance d between the tray 33 facing the opening 22 from the outside of the drying furnace 2 and the center of the cargo receiver 14 is the same as the distance between the pair of transport heads 60 and 61, the distance d is above the tray 33. When one transport head 60 overlaps, the other transport head 61 overlaps above the cargo receiving portion 14.

  E: The conveyance means 6 holds the article P with the other conveyance head 61, moves the movable member 62 to the position indicated by the phantom line in the drawing, and the article P held by the other conveyance head 61 moves to the tray 33. When overlapped upward, the conveying means 6 stops the movable member 62. Subsequently, the conveyance means 6 releases the article P from the other conveyance head 61, thereby causing the tray 33 to receive the article P. When this process is completed, the transport means 6 makes the movable member 62 stand by again as described above. In addition, a new article P is prepared in the cargo receiving unit 14.

  F: In the step D, the storage unit 31 for entering and exiting is empty because the tray 33 is carried out. In this state, the transfer means 7 advances the support 71 to the position indicated by the phantom line in FIG. At this time, as shown in FIG. 8B, the claw 34 of the storage unit 31 of the access target is positioned slightly below the tray 33 supported by the fork portion 72 of the support 71.

  G: The elevating means 4 raises the shelf 3. As a result, as shown in FIG. 8A, the fork portion 72 of the support 71 is relatively lower than the claw 34 of the storage portion 31 of the access target, and is separated from the tray 33, so that the tray 33 Are hooked on a pair of claws 34. The article P stored in the storage unit 31 of the access target in this way appears in FIG.

  H: The storage unit 31 that is one level higher than the storage unit 31 of the entry / exit target first recognized by the computer in the step A is recognized as the storage unit of the entry / exit by the computer, and the elevating drying apparatus 1 Repeat steps A through G. That is, after the elevating means 4 lowers the shelf 3 until the height of the second-stage storage unit 31 becomes substantially the same as the opening 22, the steps B to G are performed. Subsequently, after the elevating / lowering means 4 lowers the shelf 3 until the height of the third-stage storage unit 31 becomes substantially the same as the opening 22, the steps B to G are performed. In the same manner, the trays 33 are sequentially stored together with the articles P in the storage units 31 from the fourth stage to the tenth stage (uppermost stage).

  When the above step H is completed, in other words, when the tray 33 is loaded up to the tenth-stage storage unit 31, the shelf 3 has substantially the same height as the opening 22 in the tenth-stage storage unit 31. It is lowered to a position where it reaches a height. Furthermore, when the elevating drying apparatus 1 repeats the process A, the height of the first stage storage portion 31 of the shelf 3 returns to substantially the same height as the opening 22. Thereafter, the elevating dryer 1 repeats the steps B to H again.

  The steps A to H described above are one cycle of the operation of the elevating dryer 1. In the second and subsequent cycles, the elevating drying apparatus 1 performs the same operation as the above-described steps B to D again, whereby the tray 33 stored together with the articles P on the shelf 3 shown in FIG. It can be carried out from the shelf 3 as shown. In the above description, the tray 33 is initially empty (first cycle). However, when the elevating drying apparatus 1 repeats the steps B to D (after the second cycle), all trays 33 have already been used. The article P is received.

  Further, the drying time (T) of each article P by the elevating dryer 1 can be expressed as T = sn, where s is the cycle time per cycle and n is the number of stages of the shelf 3. In the present embodiment, the shelf 3 has 10 stages, but the number of stages of the shelf 3 may be increased or decreased as necessary, thereby extending or shortening the drying time (T).

  Moreover, although the example which conveys the one article | item P about the said E process was described, if the pair of conveyance heads 60 and 61 are used, the two articles | goods P shown in FIG. 11 can be conveyed at once. . That is, the transport means 6 holds the article P carried out from the shelf 3 together with the tray 33 by one transport head 60, and simultaneously holds the new article P prepared in the cargo receiver 14 by the other transport head 61. To do. The transport means 6 causes the movable member 62 to travel to the position indicated by the imaginary line in the drawing. As a result, the article P held by one of the transport heads 60 is transported to another place, and the tray 33 becomes empty. At the same time, the article P held by the other transport head 60 overlaps above the empty tray 33.

  In the above-mentioned other place, you may provide the cargo receiving part 15 which detains the goods P temporarily just before performing some post-processing to the goods P. FIG. Further, as shown in FIG. 11, the distance d from the cargo receiving portion 14 to the tray 33 and the distance d from the tray 33 to the cargo receiving portion 15 may be set to the same distance as the distance between the pair of transport heads 60 and 61. For example, the article P held by one transport head 60 overlaps the upper part of the cargo receiving unit 15, and at the same time, the new article P held by the other transport head 61 overlaps above the empty tray 33. . Subsequently, the transfer means releases the article P from the one transport head 60 to cause the article receiver P to receive the article P, and at the same time releases the article P from the other transport head 61, thereby the article P. Can be received by the empty tray 33.

  Therefore, according to the elevating dryer 1, the distance traveled by the transport head 61 for transporting the two articles P can be set to a minimum, and the number of operations of the transport drive means 63 can be reduced. Can do. For this reason, in addition to the advantage that it is not necessary to secure a particularly large space for installing the elevating dryer 1, the control of the transport driving means 63 can be simplified.

  Furthermore, according to the elevating dryer 1, all the articles P carried into the shelf 3 are dried by the hot air supplied from the hot air supply means 5 to the inside of the drying furnace 2. Moreover, the articles | goods P can be carried in into the drying furnace 2 one by one by the operation | movement of the raising / lowering drying apparatus 1, and the articles | goods P can be carried out one by one from the drying furnace 2 in this order. Therefore, all the articles P can be dried uniformly. In addition, since all the articles P stored in the shelf 3 can be stacked in the vertical direction inside the drying furnace 2, it is not necessary to secure a particularly wide space for installing the elevating drying apparatus 1. There is.

  Furthermore, the reason why the tray 33 is applied to the elevating dryer 1 is the following two points. First, in order to carry in and carry out the article P while the upper surface of the article P is sucked using, for example, the suction pad, the opening pad 22 is arranged so that the suction pad can pass through the opening 22 together with the article P. The dimension must be set larger than at least the thickness of the article P plus the height of the suction pad. On the other hand, when the article P is received by the tray 33 and this tray 33 is supported by the support body 71 as in the present embodiment, the size of the opening 22 is equal to the thickness of the tray 33. It is enough if it is wider than the added dimensions. Therefore, since the size of the opening 22 can be minimized, the hot air inside the drying furnace 2 is prevented from escaping from the opening 22 to the outside, and all the articles P carried into the shelf 3 are efficiently dried. Can do.

  Second, the interval between the storage units 31 of the shelf 3, that is, the claw 34 of one storage unit 31 among the plurality of storage units 31, and the claw 34 of the storage unit 31 that is one step above, or one step below. Since the height of the suction pad does not need to be taken into consideration with respect to the distance between the storage portion 31 and the claw 34, the distance between the storage portions 31 is obtained by adding the thickness of the support 71 to the thickness of the tray 33. It is sufficient if it is wider than the dimensions. Therefore, the height dimension of the shelf 3 can be minimized, and further the overall height of the elevating dryer 1 can be suppressed.

  Moreover, according to the elevating drying apparatus 1, the conveying means 6 conveys the article P in one direction, and the transfer means 7 transfers the article P between the conveying means 6 and the opening 22 of the drying furnace 2. By reciprocating, carrying in and carrying out the article P can be realized. For this reason, for example, when the elevating dryer 1 is installed in the middle of an existing production line, there is almost no need to change the direction in which the production line conveys the article P. Therefore, it is possible to reduce the cost, time and labor required for installing the elevating dryer 1.

  It should be noted that the present invention can be implemented in variously modified, modified, or modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention. For example, the tray 33 may be omitted, and the article P may be directly hooked by the claw 34, or the article P may be directly supported by the support 71.

  The present invention is a technique useful for continuously drying a large amount of machine parts, medical instruments, fertilizers, medicines, foods, films, and the like. In addition, the article is not limited to a planar shape, and may be a box shape, a rod shape, or a powder particle put into a container.

The side view which fractured | ruptured the principal part of the raising / lowering type drying apparatus which concerns on this invention. The front view which fractured | ruptured the principal part of the raising / lowering type drying apparatus which concerns on this invention. The side view of each of the conveyance means applied to the raising / lowering drying apparatus which concerns on this invention, and a transfer means. The front view of each of the conveyance means applied to the raising / lowering drying apparatus which concerns on this invention, and a transfer means. The top view of the transfer means applied to the raising / lowering drying apparatus which concerns on this invention. Schematic explaining the backward movement operation | movement of the transfer means applied to the raising / lowering type drying apparatus which concerns on this invention. Schematic explaining the carrying-out operation | movement by the transfer means applied to the raising / lowering drying apparatus which concerns on this invention. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explaining the raising / lowering means applied to the raising / lowering drying apparatus which concerns on this invention, and the transfer operation | movement of a transfer means divided into (a) and (b). Schematic explaining an example of the conveyance operation of the conveyance means applied to the elevating dryer according to the present invention. Schematic explaining the carrying-in operation | movement of the transfer means applied to the raising / lowering drying apparatus which concerns on this invention. Schematic explaining the other example of the conveyance operation of the conveyance means applied to the raising / lowering drying apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1: Elevating type drying apparatus 2: Drying furnace 3: Shelf body 4: Elevating means 5: Hot air supply means 6: Conveying means 7: Transfer means 22: Opening 31: Storage part 51,52: Standing pipe 53: Air blowing heating means 54: Ventilation holes 60, 61: Transport head 62: Movable member 63: Transport drive means 69: Suction pad 71: Support

Claims (5)

A drying oven having one opening through which articles can be taken in and out;
A shelf having a plurality of storage portions that are supported in the drying furnace so as to be movable up and down and overlap each other in the vertical direction,
Elevating means for elevating and lowering the shelf;
Hot air supply means for supplying hot air into the drying furnace;
Conveying means for conveying the article outside the drying furnace, and positioning the article so as to face the opening of the drying furnace in this conveying process;
A support for receiving an article positioned to face the opening of the drying oven, and advancing the support so as to enter the interior of the drying oven from the opening; An elevating drying apparatus comprising transfer means for carrying out articles from the shelf by carrying in and retreating the support so as to retreat from the opening to the outside of the drying furnace . A drying oven with an opening through which articles can be taken in and out;
A shelf having a plurality of storage portions that are supported in the drying furnace so as to be movable up and down and overlap each other in the vertical direction,
Elevating means for elevating and lowering the shelf;
Hot air supply means for supplying hot air into the drying furnace;
Conveying means for conveying the article outside the drying furnace, and positioning the article so as to face the opening of the drying furnace in this conveying process;
A lifting and lowering drying apparatus comprising: transfer means for carrying the article positioned by the conveying means into the shelf or carrying the article carried into the shelf from the shelf to the conveying means; There,
The transfer means is installed so as to face the opening from the outside of the drying furnace, and a support for receiving the article;
Advancing / retreating drive means for operating the support to enter a posture of entering the opening of the drying furnace or a posture of retreating from the opening;
Lifting and drying, wherein the article is carried into the shelf when the support enters the opening, and the article is carried out from the shelf when the support is retracted from the opening. apparatus. A movable member having a pair of transport heads separated from each other in a transport direction in which the transport means transports the article;
Transport driving means for causing the movable member to travel or stop in the transport direction;
Suction means for supplying the suction force for sucking the article to the transport head or releasing the article from the transport head by blocking the suction force;
The elevating dryer according to claim 1 or 2, wherein the elevating dryer is provided. Two load receiving portions spaced apart in the transport direction are provided, and the two load receiving portions are respectively arranged with respect to the support at the same distance as the distance between the pair of transport heads. The elevating dryer according to claim 2 . The hot air supply means is arranged close to one of the inside of the drying furnace, and one upright pipe having an air hole opened in the inside of the drying furnace;
Other upright pipes arranged close to the other inside of the drying oven and having vent holes opened inside the drying oven,
Air that sucks and heats the air inside the drying furnace through the vent hole of the one standing pipe to generate hot air and introduces the hot air into the drying furnace through the vent hole of the other standing pipe. Heating means;
The elevating dryer according to any one of claims 1 to 4, further comprising:

Images