JP2007218444A - Drying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drying device adapted to conditions of a dried object and drying conditions without increasing the size of the device. <P>SOLUTION: This drying device 1 comprises at least a pair of ducts 3, 5 disposed inside of a spiral dried object conveying pathway, and a winding plate detachably supported on the ducts and having a curved face 31 for winding the dried object 17. The ducts are respectively provided with fluid inflow ports 23 and fluid outflow ports 27, and a nozzle 33 is formed on the winding plate. A diffusion plate 29 for diffusing the fluid is disposed in the nozzle of the winding plate at the outer side of the fluid outflow ports of the ducts, and a partitioning plate 37 for spirally partitioning the dried object conveying pathway is disposed outside the ducts in a projecting state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drying apparatus.

  Japanese Patent Laid-Open No. 2002-128342 discloses a web drying apparatus. In this drying apparatus, a plurality of drying pipes are provided, and a web, which is a long object to be dried, is spirally wound from one end to one pipe, and the web reaching the other end is Furthermore, it is bridge | crosslinked by another one pipe, it is wound around the pipe, and a web is wound continuously in the same way, bridging a plurality of pipes.

Moreover, many holes are provided in the outer peripheral surface of each pipe, and the dry air supplied from the inside of a pipe is jetted out of a pipe from each hole. As a result, the web advances in a spiral manner in a state of floating from the outer peripheral surface of each pipe.
JP 2002-128342 A

  By the way, various aspects can exist as a long to-be-dried thing which dries continuously. In the to-be-dried object having a wide width direction orthogonal to the longitudinal direction, the pipe length required to wind the to-be-dried object once is also increased. In this regard, in the above-described conventional drying apparatus, it is possible to cope with a new production of an expanded pipe or an extended pipe or an increase in the number of pipes. The problem of increasing the size and the installation space. In particular, when a lamination sheet that is a component of a laminated electronic component is an object to be dried, it is desirable to be able to cope with a wide variety of conditions depending on the characteristics of the laminated electronic component, customer requirements, sheet configuration, and the like. .

  The present invention has been made in view of such a problem, and provides a drying apparatus that can be adapted to conditions of an object to be dried and drying conditions while avoiding an increase in size of the apparatus. Objective.

  In order to solve the above-described problems, a drying apparatus according to the present invention is supported by at least a pair of ducts arranged to face the inside of a spiral object transport path and detachably supported by the ducts. Each of the ducts has at least one fluid inlet and a fluid outlet, and the winding plate includes the curved plate around which the material to be dried is wound. A jet outlet is provided to cover the fluid outlet of the duct and jets the fluid supplied from the fluid outlet.

  Preferably, a diffusion plate for diffusing the fluid is provided outside the fluid outlet of the duct and inside the outlet of the winding plate.

  In addition, it is preferable that a partition plate for spirally partitioning the drying object transport path is provided outside the duct so as to protrude from the winding plate.

A fluid supply source that supplies fluid to the fluid inlet of the duct and a control unit that relatively adjusts a fluid supply amount to the at least one pair of ducts may be further provided. A plurality of fluid inlets may be formed in the duct.

  According to the above-described present invention, it is possible to simply cope with the condition of the object to be dried and the drying condition simply by changing the curvature, position, posture, opening ratio, etc. of the winding plate, and the expanded diameter duct or extension. Therefore, it is not necessary to use a duct that has been made, and an increase in the size of the apparatus can be avoided, and space saving can be ensured. In particular, the distance between the winding plates and the interval between the winding plate and the duct can be easily changed, thereby minimizing the length in the axial direction of the duct required for winding the object to be dried with a wide width dimension around the circumference. it can. This is very effective in a winding mode in which the ends of adjacent objects to be dried are along.

  Further, when a diffusion plate for diffusing the fluid is provided outside the duct fluid outlet and inside the winding plate outlet, the fluid is preferably diffused, and then a large number of When ejected from the ejection port, it is ejected uniformly from the curved surface portion, and as a result, the flying height of the object to be dried can be made more uniform.

  In the case where the partition plate that spirally divides the material transport path to be dried is provided on the outside of the duct in a manner that protrudes from the winding plate, the material to be dried has a spiral traveling path. However, the sheet feeding is stable without meandering.

  In addition, when a fluid supply source that supplies fluid to the fluid inlet of the duct and a control unit that relatively adjusts the amount of fluid supply to at least the pair of ducts are further provided, the injection from the duct is intentionally performed. It is also possible to adjust the floating amount of the whole object to be uniform.

  When a plurality of fluid inlets are formed in at least one duct, the difference in the ejection state at the fluid outlet according to the distance from the fluid inlet is alleviated, and the fluid outlets are uniform among the plurality of fluid outlets. As a result, it is possible to obtain a uniform jet of fluid, and as a result, the flying height of the object to be dried can be made more uniform.

  The other features of the present invention and the operational effects thereof will be described in more detail with reference to the accompanying drawings.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  FIG. 1 shows a side view of the drying apparatus according to the present embodiment, and FIG. The drying apparatus 1 includes a pair of upper and lower ducts 3 and 5, a winding plate 7, a fluid supply source 9, and a control unit 13.

  The pair of upper and lower ducts 3 and 5 are accommodated in the drying furnace 15. In the present embodiment, the pair of upper and lower ducts 3 and 5 are arranged so that their axial centers are parallel and located on the same vertical plane. And the to-be-dried material 17 is wound helically so that it may straddle these paired ducts 3 and 5, ie, a pair of ducts 3 and 5 may be a single core. Therefore, in other words, the pair of upper and lower ducts 3 and 5 are disposed so as to face the inner side of the spiral object to be dried conveyance path.

  In the drying furnace 15, an inlet 19 and an outlet 21 for an object to be dried 17 are formed. The material to be dried 17 is supplied from the inlet 19 into the drying furnace 15, wound spirally around the pair of upper and lower ducts 3, 5, and then carried out of the drying furnace 15 from the outlet 21.

  A fluid inlet 23 is formed in each of the ducts 3 and 5. The fluid inflow port 23 is formed at one end of the ducts 3 and 5, passes through the constituent wall of the drying furnace 15, and is located outside the drying furnace 15. On the other hand, the other ends of the ducts 3 and 5 are closed and terminate in the drying furnace 15.

  One end of a corresponding connecting pipe 25 is connected to each of the fluid inlets 23 of the ducts 3 and 5. Further, the other end of the communication pipe 25 is connected to the fluid supply source 9. The fluid supply source 9 is not particularly limited as long as it has a function of supplying a predetermined fluid to the corresponding ducts 3 and 5, but in the present embodiment, a pair of blowers 11a and 11b. It is made up of.

  Further, the pair of blowers 11 a and 11 b that are the fluid supply source 9 are respectively connected to the control means 13. The control means 13 has a function of adjusting the amount of fluid supplied from the fluid supply source 9 to the ducts 3 and 5 as a relative relationship between the ducts. Although it will not specifically limit if it has such a function, the control means 13 can be comprised from the computer which can control the operating state of air blower 11a, 11b separately, for example.

  Next, the configuration in the vicinity of the duct will be described in detail with reference to FIGS. 3 is a partially enlarged plan view showing the vicinity of the duct, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. Since the upper and lower pair of ducts 3 and 5 and the structure in the vicinity thereof are provided symmetrically in the vertical direction, FIG. 4 shows the vicinity of the upper duct 3 and the illustration of the lower duct 5 is omitted.

  As shown in FIG. 4, the pair of ducts 3 and 5 are tubular members having a rectangular cross section, and are long members extending in the axial direction. A fluid outlet 27 is provided on the upper surface of the upper duct 3 (lower surface of the lower duct 5). A plurality of fluid outlets 27 are formed in each of the pair of ducts 3 and 5 so as to be aligned in the axial direction and spaced apart from each other at equal intervals. Further, as best shown in FIG. 3, the fluid outlet 27 is a long hole extending in the axial direction of the ducts 3 and 5, and both end edges in the axial direction are arcuate in plan view. Is formed.

  A winding plate 7 is provided above the duct 3 (below the duct 5). The winding plate 7 is detachably supported by the corresponding ducts 3 and 5. In the present embodiment, more precisely, a diffusion plate 29 is interposed between the pair of ducts 3, 5 and the winding plate 7, and the winding plate 7 can be attached to and detached from the diffusion plate 29. In the present invention, not only the direct support mode attached to the duct itself but also the indirect support mode detachably attached to a member integral with the duct is “supported so as to be detachable from the duct”. A mode.

  The winding plate 7 is a bowl-shaped member opened in one direction. In the present embodiment, as shown in FIG. 4 as an example, the winding plate 7 has a U-shaped longitudinal section perpendicular to the axial direction of the ducts 3 and 5. It becomes the curved surface part 31 around which the to-be-dried object 17 is wound.

  Further, the winding plate 7 is disposed so as to cover the fluid outlet 27 with the opening side facing the corresponding ducts 3 and 5. Further, the winding plate 7 is formed by bending / bending a thin plate member, and the fluid ejected from the fluid outlet 27 of the ducts 3 and 5 is further supplied to the curved surface portion 31. A number of jet outlets 33 are formed for jetting outward. As an example, in the present embodiment, the curved surface portion 31 is made of a punching metal.

  The diffusion plate 29 is arranged outside the fluid outlet 27 of the pair of ducts 3 and 5 and inside the jet port 33 of the winding plate 7. In the present invention, the direction in which each duct is separated from the corresponding duct in a radial manner is “outside”, and the approaching direction is “inside”. In the present embodiment, the diffusing plate 29 is constituted by a flat plate member as an example, and a plurality of diffusing holes 35 are formed. In the present embodiment, the diffusion holes 35 are distributed and arranged so as to overlap with the opening region of the fluid outlet 27 of the ducts 3 and 5 as shown in FIG. 3 as an example. .

  Further, in the present embodiment, the diffusion hole 35 is set to have a smaller diameter than the fluid outlet 27 and the ejection port 33 is set to have a smaller diameter than the diffusion hole 35, so that the diffusion of the fluid described later is smoothly and efficiently stepwise. It has come to occur.

  On the outside of the pair of ducts 3, 5, a partition plate 37 that spirally divides the material transport path to be dried is provided so as to protrude from the winding plate 7. A plurality of partition plates 37 are provided in such a manner that they are arranged between each pair of adjacent fluid outlets 27. Moreover, the partition plate 37 is comprised from the plate-shaped member, and is inclined and arrange | positioned with respect to the axial direction of a pair of ducts 3 and 5 in order to partition a to-be-dried material conveyance path | route.

  Next, the operation of the drying apparatus according to the present embodiment having the above-described configuration will be described. The sheet-like material to be dried 17 supplied from the inlet 19 into the drying furnace 15 is wound so as to straddle the pair of upper and lower ducts 3, 5, and is conveyed to the outside of the drying furnace 15 from the outlet 21. In more detail, it progresses spirally along the spiral to-be-dried material conveyance path defined by the partition plate 37, in other words, it progresses downward along the curved surface portion 31 of the upper winding plate 7. The upper and lower winding plates 7 are alternately turned up and down along the curved surface portion 31 of the lower winding plate 7 and then moved upward along the curved surface portion 31 of the upper winding plate 7 and moved downward. It is wound around the curved surface portion 31.

  On the other hand, the fluid is supplied from the fluid supply source 9 to the inside of the pair of upper and lower ducts 3 and 5 through the connecting pipe 25. The fluid supplied into the ducts 3 and 5 is ejected from the fluid outlet 27 to the inner region of the winding plate 7. Further, the fluid is ejected radially through the numerous ejection ports 33 of the winding plate 7. Due to such fluid injection pressure, the material to be dried 17 advances in a state of slightly floating from the curved surface portion 31 of the winding plate 7.

  At this time, the fluid supplied to the inside of the curved surface portion 31 of the winding plate 7 is ejected from the fluid outlet 27 of the ducts 3 and 5 through the diffusion hole 35 of the diffusion plate 29. Therefore, the fluid is preferably diffused, and thereafter, when ejected from the large number of ejection ports 33, the fluid is uniformly ejected from the curved surface portion 31, and as a result, the flying height of the object to be dried 17 can be made more uniform. Moreover, since the partition plate 37 which partitions off in the aspect which protrudes rather than the curved surface part 31 is provided in the outer side of the curved surface part 31 of the to-be-dried material 17, the to-be-dried material 17 has a spiral traveling path. However, the sheet feeding is stable without meandering.

  Further, the fluid supply source 9 can adjust the supply amount of the fluid supplied to the ducts 3 and 5 through the control means 13 as a relative relationship between the ducts. If the ducts 3 and 5 are aligned in the vertical direction, for example, the jets from the upper and lower ducts are unbalanced in consideration of the effect of gravity acting on the object to be dried 17, and the entire object to be dried 17 is lifted. The amount can also be adjusted to be uniform.

  According to the drying apparatus 1 as described above, the winding plate 7 which is a direct object around which the object to be dried 17 is wound and which is also the most terminal means for imparting a floating force to the object to be dried 17 is provided with the ducts 3 and 5. Because it can be attached to and detached from the product, simply changing the curvature, position, orientation, and aperture ratio of the winding plate can easily handle the conditions and drying conditions of the material to be dried. Therefore, it is not necessary to use a duct that has been extended or extended, and an increase in the size of the apparatus can be avoided, and space saving can be ensured. Of course, since there is no need for new production / replacement of a large-sized duct or a drying furnace for storing it, it has the advantage of being able to cope with the conditions and drying conditions of the object to be dried without enormous costs. Yes. In particular, the distance between the winding plates and the interval between the winding plate and the duct can be easily changed, thereby minimizing the length in the axial direction of the duct required for winding the object to be dried having a wide width direction around the circumference. be able to. This is very effective in a winding mode in which the ends of adjacent objects to be dried are along.

  Further, such excellent operational effects in the drying apparatus according to the present invention are particularly beneficial when the laminated sheet that is a component of the laminated electronic component is an object to be dried. It is possible to easily cope with a wide variety of conditions according to the demands of the user and the configuration of the sheet. For example, when the sheet width of the material to be dried is widened, the conveyance path required for winding once is extended, but in the present invention, it can be dealt with only by changing the curvature or aperture ratio of the winding plate. . In addition, in a laminated sheet for laminated electronic components, a film to be pretreated is formed on a support film by a film forming means such as sputtering, and then a paste is printed to form a predetermined laminated film pattern. As a result of the study by the present inventors, in the laminating sheet having such a pretreatment film, the warping of the sheet may appear strongly, and it is preferable to take a long conveying distance and dry it slowly. is there. In this regard, if the drying apparatus according to the present invention is used, the entire apparatus can be accommodated by using only a winding plate having an appropriate shape and curvature such as size.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  First, the installation mode of the fluid inlet is not limited to one place for one duct. Thus, for example, fluid inlets can be provided at both ends of the duct in the axial direction or in addition to the center. According to this, the disparity in the ejection state at the fluid outlet according to the distance from the fluid inlet is alleviated, and a uniform fluid ejection is obtained among the plurality of fluid outlets. The amount can be made more uniform.

  In addition, the duct may be in an embodiment in which three or more ducts are provided inside the spiral object to be dried, or the pair of illustrated ducts, or three or more such ducts as one group are dried. It is also possible to configure so that multiple groups of ducts are installed in the furnace.

  As for the relationship between the winding plate and the partition plate, a plurality of partition plates may be installed in a manner of contacting or slightly floating on the outer peripheral surface of a continuous long winding plate, or a plurality of partition plates And a plurality of winding plates may be prepared, and a winding plate may be inserted and interposed in the gap for each pair of partition plates that are spaced apart from each other.

  The control means is not particularly limited, and may be a valve device, for example, as an example other than those described above. The adjustment of the fluid supply amount only needs to be able to adjust the relative relationship to the last. Therefore, for example, in the above embodiment, only the operation of one of the blowers may be controlled. In addition, for example, the valve device itself or a computer that controls the valve device may be used.

  The fluid supply need not be a separate device assigned to each duct. Therefore, for example, it is possible to employ a mode in which a single blower is used and the fluid supplied therefrom can be distributed to each duct at a desired ratio by a three-way valve or the like.

  In addition, the fluid ejected from the duct may be actively intended to function as a fluid for drying, or may be first intended to function as a mere levitation transport fluid and then separately dried. It is also possible to provide a heater means for installation.

It is a side view of the drying device concerning an embodiment of the invention. It is a top view of FIG. It is a top view which expands and shows the duct vicinity partially regarding the drying apparatus which concerns on this Embodiment. It is sectional drawing which follows the IV-IV line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drying device 3, 5 A pair of duct 7 Winding board 9 Fluid supply source 13 Control means 17 To-be-dried object 23 Fluid inflow port 27 Fluid outflow port 29 Diffusion plate 31 Curved part 33 Spout port 37 Partition plate

Claims (5)

At least a pair of ducts arranged to face the inner side of the spiral object to be dried;
A winding plate that is removably supported by the duct and has a curved surface around which an object to be dried is wound;
Each of the ducts has at least one fluid inlet and one fluid outlet,
The winding plate is provided so as to cover the fluid outlet of the duct, and has a jet outlet for jetting the fluid supplied from the fluid outlet.
Drying equipment. A diffusion plate for diffusing the fluid is provided outside the fluid outlet of the duct and inside the jet outlet of the winding plate.
The drying apparatus according to claim 1. On the outside of the duct, a partition plate that spirally divides the drying object conveyance path is provided in a manner that protrudes more than the winding plate.
The drying apparatus according to claim 1 or 2. A fluid supply for supplying fluid to the fluid inlet of the duct;
Control means for relatively adjusting the amount of fluid supply to the at least one pair of ducts;
The drying apparatus according to any one of claims 1 to 3. A plurality of fluid inlets are formed in at least one of the ducts;
The drying apparatus according to any one of claims 1 to 4.

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