JP5020500B2 - Duct component for silent assembly and silent assembly apparatus for duct - Google Patents

Description

  The present invention comprises a plurality of duct plates, and a rectangular tube-shaped duct is formed by fitting one helical fold portion provided on each side edge with the other helical fold portion fitted thereto. The present invention relates to a silent assembly duct component for assembly and a duct silent assembly apparatus.

  For example, a duct used as an air-conditioning air passage is assembled into a rectangular tube shape by fitting a helical fold formed along the side edge of the duct plate. As for the structure of the seam fold, the Pittsburgh goby (or Pittsburgh seam, or Mitsui goze) and the button punch goze (or snap lock seam) are well known. However, these shells have a problem in that they are noisy because the duct plate, which is a sheet metal product, is hit with a hammer at the time of assembly. Noise in the factory can cause deafness.

  On the other hand, according to the duct joint structure and assembly method disclosed in JP-A-5-172281, the upper plate and the left and right side plates are aligned by the left and right rollers while being conveyed continuously, Depending on the roller, the pressure joint is pressed and inserted, so that the efficiency of the assembly work can be improved. However, according to such an apparatus, the assembly of the duct is limited to the work in the factory, and as a result, the assembled duct is transported from the factory to the site, which is costly. It will be enormous.

JP-A-5-172281

In order to solve the above-mentioned problems, the present invention is composed of a plurality of duct plates, and is fitted between one helical fold portion provided on each side edge and the other helical fold portion fitted thereto. For a duct component for assembling a rectangular tubular duct, pressurizing the duct plate using a pressure roll and fitting one helical fold to the other helical fold, the other A receiving support means for receiving and supporting the duct plate having a helical fold is inserted and has a movable receiving groove along the side edge of the duct plate, and the receiving groove has the other helical fold. The inside of the duct plate having the inside is inclined inward so as to approach the pressure roll, and has a configuration in which an acute angle is formed with respect to a direction orthogonal to the duct plate surface. Is.

In order to solve the above-mentioned problems, the present invention is composed of a plurality of duct plates, and is fitted between one helical fold portion provided on each side edge and the other helical fold portion fitted thereto. For a duct component for assembling a rectangular tubular duct, pressurizing the duct plate using a pressure roll and fitting one helical fold to the other helical fold, the other position a movable receiving groove enters receives support means supporting undergo duct plate, away from the other goby folding portion provided on the side edges of the duct plate by a predetermined distance with goby folded portion of In addition, the receiving groove is provided continuously along the longitudinal direction of the duct plate so that the receiving groove enters inward from the outer surface of the duct plate having the other folded portion, and the tip end approaches the pressure roll. At an acute angle with respect to the direction perpendicular to the duct plate surface. And in which it took measures that includes a configuration in which.

  One side fold part and the other side fold part formed on the side edge of the duct plate are different between the Pittsburgh goby and the button punch goze, but the present invention can be easily applied to the button punch goby. can do. When a duct having a rectangular cross-sectional shape is formed with four duct plates, a total of four duct plates with two long sides and two short sides are required. The plurality of duct plates can be divided into two types: one duct plate having only one folded portion on both side edges and the other duct plate having only the other folded portion on both side edges. If it consists of, 2 kinds 2 pieces 4 pieces in total are needed. The invention according to claim 2 relates to the above-mentioned duct component. On the other hand, the structure which has one helical fold part provided in one of two parallel side edges of a duct board, and the other helical fold part provided in the other of two side edges. Then, it becomes possible to assemble a rectangular tube-shaped duct by joining four pieces of one kind. This is the duct component according to claim 3.

  In the present invention, in order to convert the pressure applied by the pressure roll into the fitting force when the duct plate is pressurized and one of the helical folds is fitted to the other helical fold, The duct plate having the folded portion is received and supported by the receiving and supporting means. In the fitting operation of the folding portion by the pressure roll and the receiving support means, the pressure roll and the receiving support means are moved along the side edge direction of the duct plate. The pressure roll and the receiving and supporting means are in a fixed positional relationship, and the one folded portion and the other folded portion are brought into a uniform fitting state with a constant acting force.

  Therefore, the duct component material of the present invention realizes a quiet operation that is almost silent compared to the conventional duct component material that is struck with a hammer, and in addition, the appearance is also uniform in the finished state. , With high quality. In addition, the duct component of the present invention is distinguished from other duct components in appearance by the fact that the receiving groove into which the receiving support means enters is provided in the duct plate, and the strength is improved by the receiving groove. It becomes one characteristic of the duct component of the invention. The duct component of the present invention is configured to receive the force of the pressure roll by the receiving groove, and the receiving groove is inclined so that the front end approaches the pressure roll and is orthogonal to the duct plate surface. It makes an acute angle with respect to the direction, thereby ensuring the pressurization and eliminating the risk of the receiving support means coming off the receiving groove.

The silent assembly apparatus for a duct according to the present invention is a pressurizing mechanism capable of rotating and moving while pressurizing a duct plate having one helical fold in order to fit one helical fold into the other helical fold. In the longitudinal direction of the duct plate, the roll enters the inside from the outer surface of the duct plate having the folded portion, and is spaced apart from the side edge of the duct plate having the other folded portion by a certain distance. A support that can be rotated and moved into a receiving groove that is continuous along the tip and is inclined so that the front end approaches the pressure roll and forms an acute angle with the direction perpendicular to the duct plate surface. It has the roll pair which makes the receiving roll as a means 1 set. In other words, the first folded portion and the other folded portion are fitted so as to be sandwiched from both sides by a pair of rolls each including a pressure roll and a receiving roll. It can be assembled smoothly with a constant acting force by moving along.

  A pair of rolls composed of a pressure roll and a receiving roll has a configuration in which the pressure roll in the pair is driven. However, it is at least necessary that the pressure roll is driven. Furthermore, it is also possible to rotationally drive the pressure roll and the receiving roll, so that the apparatus can perform the fitting operation on the helix fold while the self-propelled roll is used as the moving means. It becomes. When both the pressure roll and the receiving roll are driven, it is desirable that both rolls rotate synchronously.

  The objective is achieved if at least one pair of pressure rolls and receiving rolls is provided, but in order to obtain better results, multiple pairs of pressure rolls and receiving rolls are provided in parallel. Is desired. However, even if the roll logarithm increases too much, the resistance increases and the lightness of the work is lost. For the straight duct, the roll pair takes an array in which the same-diameter roll rows are arranged in a straight line. However, for curved ducts, it is possible to take an array in which different diameter rolls are arranged in a predetermined curved shape. Various other modes are possible and are not limited to the illustrated modes.

  Since the present invention is constructed and operates as described above, it is not necessary to strike the duct plate for fitting the folded portion, so that the noise of the folded portion can be reduced without generating excessive noise. The mating work can be performed, the working environment can be improved, and the receiving groove has an acute angle with respect to the direction perpendicular to the duct plate surface, so that the pressure applied by the receiving roll is reliably applied to the duct plate. Can be added and allows work at or near the construction site to be taken away from the factory, greatly reducing the cost of transporting factory-assembled ducts to the site and reducing labor It has a remarkable effect.

  Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments. FIG. 1 is composed of a plurality of duct plates 11, 11, 12, and 12, and each side edge has one helix portion 13 and 13 and the other hull fold portion 14 and 14 fitted thereto. Example 1 provided is shown. The illustrated duct plates 11, 11, 12, and 12 have only one folded portion 13 and 13 on both side edges, and the other has only the folded portions 14 and 14 on both side edges. It consists of 2 types, 2 units and 4 units in total. One helical fold portion 13 is a male and has a flange portion 16 and is engaged with the helical fold portion 14 of the other female and meshes with the latching portion 17 so that it cannot be pulled out (see FIG. 2).

The duct component according to the present invention has a receiving groove 15 that receives and supports the duct plate 12 having the other helically folded portion 14 and that is movable by receiving receiving support means along the side edge 18 of the duct plate 12. is doing. The illustrated receiving groove 15 enters inward from the outer surface of the duct plate 12 having the other fold-folded portion 14 and is inclined so that the front end approaches the pressure roll 21, and in a direction perpendicular to the duct plate surface. On the other hand, an acute angle is formed so that the fitting action by the receiving and supporting means is guided in the fitting direction with the pressure roll 21. The receiving groove 15 is provided so as to continue with the longitudinal direction of the duct plate 1 2, and the distance from the side edges of the duct plate 1 2 is provided to be constant.

  In contrast to the above, as shown in FIG. 3, one type in which one folded portion 13 is provided on one of two parallel side edges and the other folded portion 14 is provided on the other of the two side edges. It is also possible to take the form of a duct component plate. In Example 2, when four duct plates 11 ′ having a constant interval between the two side edges are used, a rectangular tube-shaped duct having a square cross section can be formed as shown in FIG. If two sets of four duct plates having different side lengths are used, a rectangular tube-shaped duct having a rectangular cross section can be formed.

  Regardless of which of the first and second examples is applied, the duct component plate of the present invention has the other folded plate 14 of the other duct plate 12 and the one folded plate 13 of the one duct plate 11. Is performed on the four folded portions or one folded plate 14 of one duct plate 11 'has the same structure as the other folded plate 14'. By performing the operation of fitting the portion 13, it is formed as a rectangular tube-shaped duct. In the case of Example 1, the duct plate 11 having one helical fold portion 13 and the duct plate 12 having the other helical fold portion 14 are fitted to each other shown in FIG. The rectangular tube shown may be used. The same applies to Example 2. Therefore, although it can be assembled even if it is hit with a hammer, in the present invention, by using the silent assembly apparatus 20 for a duct, the assembly operation can proceed in a state close to silence.

  The silent silence assembly apparatus 20 according to the present invention applies pressure to the duct plate 11 having one helical fold 13 in order to fit one helical fold 13 to the other helical fold 14. A pressure roll 21 and a receiving roll 22 with a flange as a receiving support means which can be rotated by entering the receiving groove 15 provided along the side edge of the duct plate 12 having the other folded portion 14. Has a pair of rolls.

  The pressure roll 21 applies pressure while rotating in contact with the plate surfaces of the duct plates 11, 11 ′ having one helical fold 13, so that one helical fold 13 is folded into the other helical fold 13. In order to perform the action of pushing into the portion 14, it has a cylindrical wheel type outer peripheral surface shape and is coupled to the drive shaft 23. The receiving roll 22 has a disk-shaped outer peripheral surface shape that is provided in the duct plate 12, 11 ′ having the other helical fold portion 14 and rotates and moves into the receiving groove 15. It is attached to a driven shaft 24 that is inclined 45 degrees downward. The driven shaft 24 is synchronized with the drive shaft 23 by gears 26 and 27 and rotates synchronously. The receiving roll 22 moves in the receiving groove 15 while acting to push up the duct plates 12 and 11 'obliquely upward by about 45 degrees. Become.

  The drive shaft 23 is coupled to the motor 25, and the gear portion is housed in the gear box 29. Reference numeral 31 denotes an adjustment lever, which is provided to fix the pressure roll 21. Reference numeral 32 denotes an adjusting bolt for adjusting according to the plate thickness, and 33 denotes an arm serving as a handle, which is used to attach one hand when operating the apparatus 20 according to the present invention. Attach to. The illustrated apparatus 20 has a configuration in which, for example, three pairs of pressure rolls 21 and receiving rolls 22 are arranged in parallel (see FIGS. 6 and 7).

  In the duct assembly device 20 according to the present invention configured as described above, in the case of Example 1, the flange portion of the receiving roll 22 is fitted into the receiving groove 15 of the duct plate 12 having the other fold-folded portion 14, and The pressure roll 21 is applied to the upper surface of the duct plate 11 having the one folded portion 13 (see FIGS. 6 and 7), and the duct plate 11 is gently moved in the direction of the side edge 18 of the duct plate. One helical fold 13 that has not yet been fitted is fitted into the other helical fold 14 as it is pressurized by the pressure roll 21, so that it is in a completely fitted state, and is formed as a rectangular tubular duct 10. Complete.

  Thus, in the present invention, the duct 10 applies the duct assembling device 20 to the fitting portion of the folding parts 13 and 14 and moves in the direction of the arrow in FIG. 4 according to the rotation of the rolls 21 and 22. Can be assembled. For this reason, the noise which strikes the folding parts 13 and 14 does not generate | occur | produce, only the friction noise which the motor 28 and gear sound and the folding parts 13 and 14 fit is generated, and work progresses quietly. .

The transverse cross section before the assembly which shows example 1 of the duct concerning the present invention. The cross-sectional view of the duct similarly assembled. Similarly, the cross-sectional view before assembly showing Example 2. FIG. The cross-sectional view of the duct similarly assembled. The cross-sectional view which similarly shows a duct assembly apparatus and a duct. The side view which shows the assembly state by an apparatus same as the above. Similarly a cross-sectional view.

Explanation of symbols

10. Duct 11, 12, 11 'duct plate according to the present invention
DESCRIPTION OF SYMBOLS 13 One fold folding part 14 The other fold folding part 15 Receiving groove 16 Gutter part 17 Latch part 18 Latching part 18 Side edge 20 Duct assembly apparatus 21 Pressure roll 22 Receiving roll 23 Drive shaft 24 Drive shaft 25 Motor 26, 27 gear

Claims (6)

A duct composed of a plurality of duct plates and for assembling a rectangular tube-shaped duct by fitting one helical fold portion provided on each side edge with the other helical fold portion fitted thereto. A component comprising:
There is a supporting means for receiving and supporting the duct plate having the other folded portion when pressurizing the duct plate using the pressure roll and fitting one folded portion to the other folded portion. There the entering is movable receiving groove, at a position separated by a predetermined distance from the other goby folding portion provided on the side edges of the duct plate, is provided continuously along the longitudinal direction of the duct plate , The above receiving groove
The other side of the duct plate having the fold-folded portion enters inward from the outer surface, the tip end is inclined so as to approach the pressure roll, and has an acute angle with respect to the direction perpendicular to the duct plate surface. Characteristic duct component for silent assembly. A plurality of duct plates, one duct plate provided with one folded portion on both side edges,
The duct component for silent assembly according to claim 1, wherein two sets of both side edges and the other duct plate provided with the other folded portion are provided as one set. 2. The duct plate has one folded portion provided at one of two parallel side edges and the other folded portion provided at the other of the two side edges. Duct component for silent assembly. Square tube-type duct assembly apparatus comprising a plurality of duct plates and assembled by fitting one helical fold provided on each side edge with the other helical fold fitted therein. Because
In order to fit one helical fold part to the other helical fold part, a pressure roll that can be rotated while pressing a duct plate having one helical fold part, and another helical fold part The duct plate enters inward from the outer surface of the duct plate, and is continuous along the longitudinal direction of the duct plate at a certain distance from the side edge of the duct plate having the other folded portion , and the tip end is A pair of receiving rolls that are inclined so as to approach the pressure roll and that are provided at an acute angle with respect to the direction perpendicular to the duct plate surface and that can be rotated and moved into the receiving groove. having a roll pair, silence assembling device of a duct having a configuration which is adapted to drive the pressure roll. The silent assembly apparatus for a duct according to claim 4, wherein the pressure roll and the receiving roll are both driven and configured to rotate synchronously. The duct assembling apparatus according to claim 4, wherein a plurality of sets of pressure rolls and receiving rolls are arranged in parallel.

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