JP2008132563A - Drilling method and its device for elastic foaming body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drilling device for an elastic foaming body capable of performing the drilling work while rotating the elastic foaming body, improving precision in working on an inner peripheral face of an insertion hole formed in the elastic foaming body, and improving efficiency of the drilling work. <P>SOLUTION: The elastic foaming body W is compressed by upper and lower compression pins 15 and is stored in a storage chamber 12a in a storage case 12 of a storage tool 11 in a compression area of the elastic foaming body W, and the storage case 12 and the compression pins 15 are held by a connection/holding device 18. After the compression operation, the storage tool 11 is moved into a drilling area, a lower end part of the storage tool 11 is fitted into a rotary body 63 supported on a supporting member 62, and an upper end part is fitted into a rotary holding member 66 provided on a main shaft 65. The main shaft 65 is rotated, the storage tool 11 is rotated, and a drilling tool T is made to pass through a tool insertion hole 15a formed in the compression pin 15 from below and enter the elastic foaming body W so that an insertion hole Wh is formed in the elastic foaming body W. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elastic foam perforation method and apparatus for perforating an insertion hole in an elastic foam.

  For example, as a paper feeding roller or toner supply roller of a copying machine, an insertion hole Wh of a shaft S is formed in a prismatic roller material made of an elastic foam W such as urethane foam or rubber sponge as shown in FIG. The shaft S is penetrated and bonded to the insertion hole Wh, and the roller material is machined into a cylindrical shape as shown in FIG. As an apparatus for opening the insertion hole Wh in the prismatic elastic foam W shown in FIG. 16, a device disclosed in Patent Document 1 or Patent Document 2 has been proposed.

  In the drilling device disclosed in Patent Document 1, a cylindrical frame is fixed to a support base, and a pressing body supported by the support base in a reciprocating manner via a guide rail is provided inside the frame body. And compresses the prismatic elastic foam (roller material). Thereafter, the cylindrical blade is rotated to enter the compressed elastic foam from the blade insertion hole formed in the frame, and a hole (insertion hole) is formed in the elastic foam.

Further, the punching device for an elastic body disclosed in Patent Document 2 has a rectangular cylindrical pressing member standing and fixed on the upper surface of the work plate, and the elastic body (roller material) is accommodated inside the cylindrical frame. The cylindrical body is fitted to the pressing member from above the pressing member, and the elastic body is compressed by pressing the cylindrical frame downward by a pressing plate connected to the piston rod. Then, the through hole formed in the central portion of the pressing plate and the lid of the cylindrical frame is inserted into the compressed elastic body while rotating the drill, and the insertion hole is drilled in the elastic body. .
JP-A-8-126997 JP 2001-18197 A

  In the compression mechanism of the elastic foam (elastic body) disclosed in Patent Literatures 1 and 2, each member that accommodates the compressed elastic foam is installed in a non-movable position at a predetermined position of the support base or work plate. Therefore, the compressed elastic foam cannot be rotated. For this reason, it is necessary to penetrate the elastic foam while drilling the cylindrical blade (drill), and the chip is pressed against the inner peripheral surface of the insertion hole drilled by centrifugal force by the rotation of the cylindrical blade. Therefore, it becomes difficult to be discharged to the outside from the chip relief groove formed in a spiral shape on the cylindrical blade (drill). Accordingly, the chips are not properly discharged during the drilling operation, and chips are caught between the outer peripheral surface of the drilling tool and the inner peripheral surface of the insertion hole, and the inner peripheral surface is not processed smoothly. Thus, there is a problem that the processing accuracy of the inner peripheral surface of the insertion hole is lowered. When the processing accuracy of the insertion hole of the elastic foam is lowered, when the shaft and the elastic foam are bonded by passing through the insertion hole Wh and heating the shaft whose outer peripheral surface is coated with the hot melt adhesive, Uniform adhesion cannot be obtained. As a result, when the elastic foam is used, for example, as a toner supply roller, the shaft and the elastic foam may be broken and the function as the roller may not be exhibited properly.

  The present invention eliminates the above-mentioned problems in the prior art, and can perform a drilling operation while rotating the elastic foam, improving the processing accuracy of the inner peripheral surface of the insertion hole formed in the elastic foam. It is an object of the present invention to provide an elastic foam perforation method and an apparatus thereof.

  In order to solve the above problems, the invention according to claim 1 includes a step of setting a storage case having a storage hole that constitutes a storage jig for elastic foam that can be handled as a single unit on a pallet in a setup area. Before or after the above step, storing a part or all of the elastic foam in an uncompressed state in the housing hole of the housing case, and after the step, moving the housing case together with the pallet from the setup area to the compression area. A step of compressing and storing the elastic foam in the accommodation hole by pushing a compression pin into the accommodation hole of the accommodation case, and attaching a holder to the accommodation case and the compression pin after the step Holding the compression pin at the compression position of the elastic foam, and after the above-described steps, a single holding jig on the pallet is transported from the compression area to the perforation area, and the holding treatment is performed. And a step of making a drilling tool enter the compressed elastic foam in the receiving jig to form an insertion hole in the elastic foam, and after the above process, releasing the holding jig from the drilling area. A step of removing the holder from the housing case by transporting it onto a pallet in the area, a step of releasing the compression state of the elastic foam by the compression pin in parallel with the step, and the releasing of the compression after the step And a step of taking out the storage case together with the pallet from the area, transporting the storage case to the area, and taking out the elastic foam processed from the storage case.

  The invention according to claim 2 is a pallet for setting a storage case constituting an elastic foam storage jig in the setup area, and a pallet carrying mechanism for carrying the pallet from the setup area into the compression area. A compression mechanism for compressing the elastic foam by inserting a compression pin into the accommodation hole of the accommodation case in the compression area, and attaching a holder to the accommodation case and the compression pin. A holder mounting mechanism for holding the compression pin at the compression position of the elastic foam, and a first jig transfer mechanism for transporting a single storage jig on the pallet from the compression area to the punching area; In the perforation area, the accommodation jig is rotated and the perforation tool is inserted into the compressed elastic foam in the accommodation jig to form an insertion hole in the elastic foam. Punching mechanism, a second jig transfer mechanism for transporting the storage jig from the punching area onto a pallet existing in the compression release area, and a holder removal mechanism for removing the holder from the storage case And a compression release mechanism for releasing the compression state of the elastic foam by the compression pin, and a pallet unloading mechanism for conveying the storage case together with the pallet from the compression release area to the removal area. To do.

  According to a third aspect of the present invention, in the second aspect, the housing case is divided into a first case piece and a second case piece along a plane passing through the axis of the housing hole, and the first and second case pieces. Both end portions of the pallet are configured to be coupled by a coupling tool, the coupling tool is configured as a coupling / holding tool integrally with the holding tool, and the first case piece can be set at a predetermined position of the pallet. On the other hand, the compression mechanism includes a second case piece detaching mechanism for joining or separating the second case piece with respect to the first case piece on the pallet, and both ends of the first and second case pieces. A coupling / holding tool detaching mechanism for detaching the coupling / holding tool to the part, and a compression pin pushing mechanism for compressing the elastic foam by pushing the compression pin into the housing hole of the housing jig, The compression mechanism includes the pressure Functions as a release mechanism is also summarized in that have been granted.

  According to a fourth aspect of the present invention, in the third aspect, the pallet is provided on a top surface of the substrate and supported by the substrate for holding the single first case piece in a predetermined position. An elastic foam projecting outward from the housing groove of the first case piece and a pair of lower foam housing members having a housing groove for housing the lower half of the compression pin, while the second case piece The elevating frame constituting the detaching mechanism is in contact with the upper surface of the lower foam housing member, and has an upper foam having a housing groove for housing the elastic foam protruding from the first case piece and the upper half of the compression pin. When the body housing member is mounted and the connecting / holding member detaching mechanism attaches / detaches the connecting / holding member to both ends of the housing case, the lower and upper foam housing members contact the both ends of the housing case. Evacuate from position And summarized in that it is configured to be switched to location.

  According to a fifth aspect of the present invention, in any one of the second to fourth aspects, the drilling mechanism holds the posture of the storage jig vertically, and the drilling tool is formed into an elastic foam from below the storage jig. The gist is that it is configured to enter.

  A sixth aspect of the present invention is the method according to the fifth aspect, wherein the first and second jig transfer mechanisms include a rotation support cylinder that is reciprocally swiveled around a vertical axis, and a horizontal axis line with respect to the rotation support cylinder. The gist of the invention is that it is composed of a pair of transfer arms reciprocally swung around, and an adsorber that is attached to the distal ends of both arms and adsorbs and holds the upper surface of the housing case.

(Function)
According to the present invention, a pallet in which a storage case and an elastic foam are set in a setup area is carried into the compression area from the setup area by a pallet carry-in mechanism. In the compression area, the compression pin is pushed into the accommodation hole of the accommodation case by the compression mechanism, and the elastic foam is compressed and accommodated in the accommodation hole. A holder is mounted on the housing case and the compression pin by the holder mounting mechanism, and the compression pin is held at the compression position of the elastic foam. In this state, the storage jig including the storage case, the compression pin, and the holder on the pallet can be handled as a single unit, and the storage jig is transferred from the compression area to the drilling mechanism in the drilling area and is stored by the drilling mechanism. As the jig is rotated, the drilling tool is inserted into the compressed elastic foam in the housing jig to form an insertion hole in the elastic foam.

  According to the present invention, an elastic foam that is compressed and accommodated in the accommodation hole of the accommodation case can be handled as a single unit by the accommodation jig, and elastic foaming is performed while rotating the accommodation jig while holding the drilling tool in a non-rotating state. The body can be drilled. For this reason, even if the compressed elastic foam is rotated at high speed, the chips do not receive the rotational centrifugal force, and the chips are discharged smoothly, and the inner peripheral surface of the insertion hole formed in the elastic foam The machining accuracy can be improved. In addition, according to the present invention, since various operations are performed according to each area in the setup area, the compression area, the punching area, the decompression area, and the take-out area, the efficiency of the punching work can be improved.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment embodying a method and an apparatus for punching an elastic foam according to the present invention will be described below with reference to FIGS.
First, an accommodation jig 11 that can accommodate an elastic foam in a compressed state and handle it as a single unit will be described with reference to FIGS. As shown in FIG. 9, the housing case 12 in which the outer peripheral surface of the housing jig 11 forms a square cylinder is configured to be separable by first and second case pieces 13 and 14 that are divided into half-square columns. Yes. In the state where the first and second case pieces 13 and 14 are joined as shown in FIGS. 7 and 8, the two receiving grooves 13 a and 14 a formed on the joining surfaces of the first and second case pieces 13 and 14. Thus, a cylindrical accommodation hole 12 a is formed at the center of the accommodation case 12. Two compression pins 15 and a compressed elastic foam W for compressing a cylindrical elastic foam (an elastic foam W without an insertion hole Wh shown in FIG. 17) are accommodated in the accommodation hole 12a. I am doing so. A tool insertion hole 15a for inserting a drilling tool T (see FIG. 6) for forming an insertion hole Wh in the compressed elastic foam W is formed at the center of both compression pins 15, and a small diameter portion is formed at one end. 15b and a step 15c are formed.

  As shown in FIG. 9, positioning holes 13 b are formed in two places on the joint surface of the first case piece 13. The second case piece 14 is formed with two mounting holes 14b corresponding to the positioning holes 13b. The positioning holes 14b are inserted into the positioning holes 13b as shown in FIG. 16 is attached by a bolt 17. Then, both the positioning pins 16 are engaged with the positioning holes 13b, so that the first and second case pieces 13 and 14 are held in a proper combined state.

  Semi-cylindrical small-diameter half-cylinder portions 13c and 14c are formed at both ends of the first and second case pieces 13 and 14, respectively, and semicircular arc-shaped locking protrusions are formed on the outer peripheral surfaces near the end portions. Strips 13d and 14d are formed. The first and second case pieces 13 and 14 are connected by a connecting / holding tool 18 shown in FIG. The connecting / holding tool 18 has a function of connecting the first and second case pieces 13 and 14 as shown in FIGS. 7 and 8, and the compression pin 15 is provided in the receiving hole 12a. It has a function to prevent it from leaving. The connecting / holding tool 18 is fitted to the both small-diameter half-cylinder portions 13c, 14c so as to sandwich both cylindrical portions, and has a substantially U-shape for connecting the first and second case pieces 13, 14. A connecting protrusion 18a is provided. The connecting / holding tool 18 holds the compression pins 15 in the compressed position in a state where the compression pins 15 accommodated in the accommodation holes 12a of the accommodation case 12 compress the elastic foam W. A substantially U-shaped holding protrusion 18b is provided. Then, the connecting protrusion 18a of the connecting / holding tool 18 is fitted to both the small-diameter half-cylinder portions 13c, 14c and is locked to the locking protrusions 13d, 14d, and the holding protrusion 18b is The step 15c is locked by the holding protrusion 18b by being fitted to the proximal end of the small diameter portion 15b of the compression pin 15. Thus, the compression pin 15 is prevented from coming out of the accommodation hole 12a of the accommodation case 12 by the compression reaction force of the elastic foam W in the compressed state.

  Next, based on FIG. 1 and FIG. 2, a punching device for compressing and storing the elastic foam W in the storage jig 11 and punching the insertion hole Wh in the compressed elastic foam W Will be described.

  As shown in the schematic plane of FIG. 1, this punching device holds the first case piece 13 of the housing jig 11 and holds the elastic foam W and the compression pin 15 in an uncompressed state. A pallet 21 is provided. The first case piece 13 is positioned and held at the center of the upper surface of the substrate 22 of the pallet 21 via a positioning pin (not shown). As shown in FIG. 3, a pair of lower foam accommodating members 24 are supported on the upper surface of the substrate 22 via a guide mechanism 23 so as to be able to reciprocate in the horizontal X-axis (left and right) direction. On the upper surface of the lower foam housing member 24, a semi-cylindrical shape for housing the elastic foam W protruding from the housing groove 13 a and the compression pin 15 so as to correspond to the housing groove 13 a of the first case piece 13. The receiving groove 24a is formed. An L-shaped operating tool 25 is attached to one end surface of the lower foam housing member 24, and when the operated tool 25 is moved in the X-axis direction, both lower foam housing members 24 are first. The operating position that contacts the end face of the case piece 13 is moved to the retracted position.

Next, based on FIG.1 and FIG.2, schematic structure of a perforation apparatus is demonstrated.
As shown in FIG. 1, the punching device includes a setup area A <b> 1 for setting the first case piece 13, the elastic foam W and the compression pin 15 on the pallet 21. Further, a pallet carrying mechanism 31 is provided for carrying the pallet 21 in the setup area A1 into the compression area A3 via the relay area A2. In the compression area A3, the second case piece 14 is joined to the first case piece 13 on the pallet 21, and the elastic foam W and the upper half of the compression pin 15 are accommodated and held. A compression mechanism for compressing and releasing compression and a compression / release mechanism 30 as a compression release mechanism are provided. The compression / release mechanism 30 is a connecting / holding device as a holding device mounting mechanism for attaching / detaching the connecting / holding device 18 to / from both ends of the first and second case pieces 13, 14 and a holding device removing mechanism. A desorption mechanism 43 is provided. The specific configuration of the connecting / holding device attaching / detaching mechanism 43 is omitted. As shown in FIG. 1, a perforation area A4 is provided behind the compression area A3 in the Y-axis (front-rear) direction, and the perforation area A4 accommodates a compressed elastic foam W. A perforation mechanism 61 for perforating the insertion hole Wh in the elastic foam W by causing the perforation tool T to enter the housing jig 11 and rotating while holding 11 in the vertical direction is provided. Between the compression area A3 and the perforation area A4, a jig transfer mechanism 71 is provided for transferring the single accommodation jig 11 alternately between the areas A3 and A4. The compression area A3 is also used as a compression release area A5, and the housing jig 11 containing the perforated elastic foam W is transferred to the pallet 21 in the compression release area A5, and the connecting / holding member detaching mechanism 43 is moved. Thus, the connecting / holding tool 18 is removed, and the compression / release mechanism 30 releases the compressed state of the elastic foam W. A pallet unloading mechanism 32 is provided between the decompression area A5 and the foam removal area A6 on the left side of the relay area A2. It has been.

Next, each mechanism 31, 32, 30, 61, 71 described above will be sequentially described.
(Pallet carrying mechanism 31 and pallet carrying mechanism 32)
The pallet carry-in mechanism 31 and the pallet carry-out mechanism 32 include an X-axis guide rail 26 and a Y-axis guide rail 27, and a plurality of carriages 28 guided and moved by these rails 26 and 27. And the pallet 21 (refer FIG. 3) which supported the 1st case piece 13, the compression pin 15, and the unprocessed elastic foam W with the trolley | bogie 28 of the pallet carrying-in mechanism 31 is compressed via the relay area A2 from the setup area A1. It is made to carry in to area A3. The pallet 21 supporting the processed elastic foam W by the pallet unloading mechanism 32 is unloaded from the compression area A3 via the relay area A2 by the carriage 28 to the area A6. Note that both mechanisms are provided with complicated mechanisms for changing the path of the carriage 28 in the X and Y axis directions, but these are omitted in the figure.
(Compression / release mechanism 30)
As shown in FIG. 2, an elevating cylinder 36 is fixed downward in the Z-axis (vertical) direction at a predetermined position of the frame F above the pallet 21 carried into the compression area A3. The lift plate 38 is attached horizontally. A plurality of holding rods 39 are attached downward to the lower surface of the elevating plate 38, and a suction cup 40 as a suction tool is attached. The suction cup 40 sucks and holds the upper surface of the second case piece 14. Yes. A second case piece detaching mechanism 35 for detaching the second case piece 14 from the first case piece 13 is constituted by the elevating cylinder 36, the elevating plate 38, the holding rod 39, the suction cup 40, and the like.

  A pair of left and right upper foam accommodating members 42 are attached to the elevating plate 38 via a position switching mechanism 41. As shown in FIG. 3, a semi-cylindrical housing groove 42 a for housing the elastic foam W and the upper half of the compression pin 15 is formed on the lower surfaces of the upper foam housing members 42.

  An air cylinder 51 as a compression pin push-in mechanism is horizontally supported at predetermined positions of the left and right frames F of the pallet 21 so that the elastic foam W can be compressed by the piston rod 52. Yes.

In the vicinity of the air cylinder 51, a position switching cylinder 53 is disposed horizontally, and a U-shaped engagement fitting 55 is attached to the piston rod 54 thereof. Then, with the operated tool 25 attached to the lower foam housing member 24 being inserted into the engagement fitting 55, the lower foam housing member 24 is moved from the operating position in contact with the first case piece 13 to the retracted position. So that they can be separated.
(Punching mechanism 61)
As shown in FIG. 6, a support member 62 is mounted on the frame F so as to be lifted and lowered by a lifting mechanism (not shown). A hook-like rotating body 63 into which the lower end portion of the housing jig 11 is fitted is rotatably supported by the support member 62. A spindle device 64 is supported on the frame F above the rotating body 63 so as to be movable up and down by a lifting mechanism (not shown). At the lower end portion of the main shaft 65 of the main shaft device 64, a rotation holding member 66 capable of fitting the upper end portion of the housing jig 11 is rotatably supported.
(Jig transfer mechanism 71)
As shown in FIG. 1, in the frame F, a rotary support cylinder 72 is positioned between the compression area A3 and the perforation area A4 so that a reciprocating turn in the horizontal direction about a vertical axis can be performed by a turning mechanism (not shown). It is supported. A pair of left and right transfer arms 73 are horizontally supported on the outer peripheral surface of the rotation support cylinder 72 and supported so as to be capable of reciprocating around a horizontal axis directed in the X-axis direction by a turning mechanism (not shown). A gripping plate 75 that is moved up and down by a lifting mechanism 74 is attached to the transfer arm 73, and a suction cup 76 that can suck and grip the upper surface of the second case piece 14 is attached to the gripping plate 75.
(Operation of punching device)
Next, the operation of the perforating apparatus configured as described above will be described.

  First, in the setup area A1 shown in FIG. 1, after the first case piece 13 is supported on the upper surface of the substrate 22 as shown in FIG. 4A, the accommodation groove 13a and the accommodation groove of the lower foam accommodation member 24 are provided. The elastic foam W and the compression pin 15 are accommodated in 24a.

  Next, as shown in FIG. 4B, the pallet 21 is carried into the compression area A3 from the setup area A1 via the relay area A2 by the carriage 28 of the pallet carry-in mechanism 31. In this state, the elevating cylinder 36 shown in FIG. 2 is operated to move the second case piece 14 and the upper foam accommodating member 42 downward, and as shown in FIG. 4C, the first case piece. 13, the second case piece 14 is joined to the lower foam housing member 24, and the upper foam housing member 42 is joined to the lower foam housing member 24. In this state, the air cylinder 51 is operated and the piston rod 52 is inserted into a cylindrical housing hole formed by the housing groove 24a of the lower foam housing member 24 and the housing groove 42a of the upper foam housing member 42. 4D, the elastic foam W is compressed into the accommodation hole 12a of the accommodation case 12 by the compression pin 15. As shown in FIG. In this state, the cylinder 53 and the position switching mechanism 41 are operated, and the lower foam housing member 24 and the upper foam housing member 42 are moved from the operating position to the retracted position as shown in FIG. In this state, the coupling / holding tool 18 is attached to both ends of the housing case 12 by the detaching mechanism 43 of the coupling / holding tool 18 shown in FIG. 2, and the piston rod 52 is retracted as shown in FIG. 5 (b). The upper foam housing member 42 and the suction cup 40 are moved to the upper retracted position.

  Next, as shown in FIG. 5B, the suction cup of one transfer arm 73 of the jig transfer mechanism 71 shown in FIG. 2 with respect to the upper surface of the second case piece 14 of the housing jig 11 as a single unit. 76 is adsorbed, and the storage jig 11 is moved from the compression area A3 to the drilling area A4. And the accommodation jig | tool 11 is shown between the rotary body 63 and the rotation holding member 66 of the drilling mechanism 61 by two-way turning operation | movement centering on the vertical axis line and horizontal axis line of the accommodation jig | tool 11 by the jig transfer mechanism 71. As shown in FIG. 5 (c), the vehicle is turned vertically and entered. Thereafter, the rotating body 63 and the rotation holding member 66 are fitted to the upper and lower ends of the receiving jig 11 as shown in FIG. 6, and the gripping plate 75 and the suction cup 76 of the jig transfer mechanism 71 are moved to the retracted position. . In this state, the main shaft 65 is rotated to rotate the receiving jig 11, and the drilling tool T disposed below the support member 62 is inserted upward from the tool insertion hole 15 a of the compression pin 15, and the elastic foam W The insertion hole Wh is formed in the.

  During the moving operation from the compression area A3 to the punching area A4 of the storage jig 11 and the punching operation of the elastic foam W, the empty pallet 21 is returned from the compression area A3 to the setup area A1, and the next setup is performed. After the operation is performed, the second compression operation of the elastic foam W is performed.

  Next, the single accommodation jig 11 that has finished compressing the elastic foam W in the compression area A3, and the accommodation jig 11 that has finished drilling the insertion hole Wh in the drilling area A4 are the jig transfer mechanism 71. The two transfer arms 73 are sucked by the suction cups 76, and the positions of both the holding jigs 11 are switched by the jig transfer mechanism 71. That is, the accommodation jig 11 that accommodates the unprocessed elastic foam W is moved to the perforation area A4, and the accommodation jig 11 that accommodates the processed elastic foam W is moved to the same compression release area A5 as the compression area A3. Is done. The storage jig 11 moved to the compression release area A5 releases the compression of the elastic foam W by an operation opposite to the compression operation described above. Thereafter, the pallet 21 is transported from the compression release area A5 via the relay area A2 to the take-out area A6 by the pallet unloading mechanism 32, and the elastic foam W in which the insertion hole Wh is formed is manually moved to the first case piece 13. Taken from. The next elastic foam W is set on the empty pallet 21 in the take-out area A6 to prepare for the next compression operation. Therefore, the take-out area A6 also functions as the setup area A1.

  As shown in FIG. 17, the shaft S is penetrated into the insertion hole Wh of the elastic foam W after the perforation work is completed, and then the outer peripheral surface of the elastic foam W is cut by a machine to supply toner, for example, to a copying machine. Used as a roller.

According to the punching device of the above embodiment, the following effects can be obtained.
(1) In the said embodiment, the 1st case piece 13 of the accommodation jig | tool 11 is supported on the pallet 21, and the elastic foam W is set to the 1st case piece 13 and the pallet 21 in the setup area A1, and the pallet 21 is set. It is carried into the compression area A3 from the set-up area A1, where the elastic foam W is compressed into the storage jig 11, and the connecting / holding tool 18 is fitted to both ends of the storage case 12, so that the storage jig 11 is united. As possible. For this reason, the compression / release mechanism 30 and the punching mechanism 61 can be arranged separately, and the insertion hole Wh can be punched in the elastic foam W by the non-rotating punching tool T while rotating the receiving jig 11. it can. Accordingly, since the chips do not receive centrifugal force during the drilling operation, the chips are smoothly discharged from the drilled insertion hole Wh, and the processing accuracy of the insertion hole Wh can be improved.

  (2) In the above embodiment, since the housing case 12 is divided into the first and second case pieces 13 and 14, the elastic foam W with the first case piece 13 horizontally supported on the pallet 21. After the lower half of the container is accommodated in the accommodating groove 13a, the second case piece 14 is joined to the upper surface of the first case piece 13 so that the middle of the non-compressed elastic foam W is accommodated in the accommodating hole 12a of the accommodating case 12. The part can be easily accommodated.

  (3) In the above embodiment, the connecting tool that connects the first and second case pieces 13 and 14 and the holding tool that holds the compression pin 15 in the compressed position are constituted by one connecting / holding tool 18. The connecting operation of the first and second case pieces 13 and 14 and the operation of holding the compression pin 15 in the compression position of the elastic foam W can be easily performed. Further, the structure of the connecting tool and the holding tool can be simplified, the number of parts can be reduced, the manufacturing can be easily performed, and the cost can be reduced.

  (4) In the above embodiment, since the tool insertion holes 15a are respectively provided in the compression pins 15, it is not necessary to confirm the orientation of the storage jig 11 when drilling the elastic foam W. Drilling work can be performed quickly and appropriately. Further, after the tool T is inserted from one tool insertion hole 15a and the insertion hole Wh is formed in the elastic foam W, air is injected from the other tool insertion hole 15a and the chips adhering to the insertion hole Wh. Can also be cleaned.

  (5) In the above embodiment, the setup area A1 and the take-out area A6 are provided, and the compression area A3 (compression release area A5) and the perforation area A4 are provided. The release operation), the drilling operation, and the removal operation can be performed individually, and the efficiency of the drilling operation can be improved.

  (6) In the above embodiment, since the elastic foam W protruding from the accommodation hole 12a of the housing case 12 is compressed, the compression ratio of the elastic foam W can be increased, and the housing case 12 The length can be shortened.

  (7) In the above embodiment, the posture of the storage jig 11 is held vertically, and the drilling tool T is configured to enter the elastic foam W from below the storage jig 11. The chips are discharged smoothly, and the processing accuracy of the insertion hole Wh can be further improved.

  (8) In the above embodiment, the jig transfer mechanism 71 is attached to the pair of transfer arms 73 in which the jig transfer mechanism 71 is reciprocally swung, and the distal ends of both arms 73, and the upper surface of the second case piece 14 is suction-gripped. Therefore, the structure of the jig transfer mechanism 71 can be simplified.

  (9) In the above embodiment, the elastic foam W can be simultaneously compressed by the two compression pins 15 from both end surfaces inside the accommodation hole 12a of the accommodation case 12, and the compression operation can be performed quickly. Further, as compared with the method in which the elastic foam W is compressed from only one side, the compressive stress acting on the elastic foam W is uniformed as a whole without being biased. Therefore, it is possible to make the elastic foam W in a solid compressed state in which any porosity where no bubbles are present is almost zero, and further improve the processing accuracy of the inner peripheral surface of the insertion hole Wh by the drilling tool T. Can do.

In addition, you may change the said embodiment as follows.
In the embodiment shown in FIG. 10, a dedicated setup area A1 and take-out area A6, a compression area A3 having a compression mechanism for the elastic foam W and a mounting mechanism for the connecting / holding device 18, and compression of the elastic foam W A compression release area A5 provided with a release mechanism and a mechanism for removing the connection / holding tool 18 is provided. Further, a first jig transfer mechanism 81 is provided between the compression area A3 and the drilling area A4, and a second jig transfer mechanism 82 is provided between the drilling area A4 and the compression release area A5. Further, a mechanism (not shown) for returning the connection / holding tool 18 removed from the housing case 12 by the removal mechanism of the connection / holding tool 18 to the attachment mechanism of the connection / holding tool 18 on the compression area A3 side in the compression release area A5. Is provided.

  In this embodiment, various processes can be continuously performed by one-way conveyance of the elastic foam W from the set-up area A1 to the take-out area A6, and work efficiency can be further improved.

  As shown in FIG. 11, the setup area A1 and the take-out area A6 may be the same area. In this case, the structure of the pallet carry-in mechanism 31 and the pallet carry-out mechanism 32 can be simplified.

  As the housing jig 11, as shown in FIG. 12, one compression pin 15 is used, and one end portions of the first and second case pieces 13, 14 are closed by the bottom portions 13f, 14f, and both the bottom portions 13f, 14f are closed. Alternatively, the housing grooves 13g and 14g may be formed on the joint surface, and the insertion hole 45 of the drilling tool T may be formed by both grooves. In this embodiment, the lower foam housing member 24, the upper foam housing member 42, the air cylinder 51, etc. of the pallet 21 shown in FIG.

  As shown in FIG. 13, as the storage jig 11, a storage case 12 is integrally formed, cylindrical small diameter cylindrical portions 12b are formed at both ends thereof, and an annular engagement is formed on the outer peripheral surface of the small diameter cylindrical portion 12b. You may use what formed the stop protrusion 12c.

  In this embodiment, in the setup area A1 shown in FIG. 1, it sets in the state in which the intermediate part of the elastic foam W was accommodated in the inside of the storage case 12 on the pallet 21. FIG. In this embodiment, since the storage case 12 is not divided, the connecting / holding tool 18 functions as a simple holding tool. Further, in this embodiment, the suction cup 40 provided on the lifting plate 38 of the compression / release mechanism 30 shown in FIG. 2 can be omitted, and the structure can be simplified.

  As the storage jig 11, as shown in FIG. 14, a bottom 12e is integrally formed at one end of the storage case 12 of FIG. 13, one end of the storage hole 12a is closed, and a drilling tool is formed at the center of the bottom 12e. What formed T insertion hole 12f may be used.

In this embodiment, the structure of the compression / release mechanism 30 and the attachment / detachment mechanism 43 of the coupling / holding tool 18 can be simplified.
As shown in FIG. 15, as the receiving jig 11, the first and second case pieces 13, 14 are formed with V-shaped square grooves 13 h, 14 h so that the receiving hole 12 a of the receiving case 12 is formed in a square cylindrical shape. The compression pin 15 may be formed in a quadrangular prism shape. In this case, the housing groove 24a of the lower foam housing member 24 and the housing groove 42a of the upper foam housing member 42 shown in FIG. 3 are changed to V-shaped square grooves, and the compression pin 15 is changed to a quadrangular prism shape.

  In the above embodiment, after the insertion hole Wh is formed in the rectangular columnar elastic foam W, the shaft S is bonded to the insertion hole Wh using a hot melt adhesive as shown in FIG. The elastic foam W is rotated, and the outer peripheral surface of the elastic foam W is machined from a rectangular tube shape to a cylindrical shape.

-The length dimension of the said accommodation jig | tool 11 may be lengthened, and you may make it accommodate the whole elastic foam W in the accommodation hole 12a of the accommodation case 12 in an uncompressed state.
In the embodiment, the accommodation jig 11 is rotated while being held vertically, but may be rotated horizontally to perform a drilling operation.

-You may connect the said 1st and 2nd case pieces 13 and 14 by a hinge mechanism.
The housing case 12 may be changed to a polygonal cylinder or a cylinder instead of a square cylinder.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan view showing an embodiment of a drilling device according to the present invention. FIG. 3 is a schematic front sectional view showing a compression / release mechanism provided in a compression area and a compression release area of the punching device. The fragmentary perspective view of a pallet and a compression / release mechanism. (A)-(d) is sectional drawing explaining the compression operation | movement of an elastic foam, respectively. (A) And (b) is sectional drawing explaining compression operation | movement of an elastic foam, respectively, (c) is sectional drawing explaining perforation operation | movement of an elastic foam. The longitudinal cross-sectional view explaining the drilling operation | work of the elastic foam by a punching mechanism. The longitudinal cross-sectional view of a storage jig. FIG. 8 is an enlarged cross-sectional view taken along line 1-1 of FIG. The exploded perspective view of a storage jig. FIG. 6 is a schematic plan view of a punching device showing another embodiment of the present invention. FIG. 6 is a schematic plan view of a punching device showing another embodiment of the present invention. The center part longitudinal cross-sectional view of the accommodation jig | tool which shows another embodiment of this invention. The center part longitudinal cross-sectional view of the accommodation jig | tool which shows another embodiment of this invention. The center part longitudinal cross-sectional view of the accommodation jig | tool which shows another embodiment of this invention. The cross-sectional view of the accommodation jig which shows another embodiment of this invention. The perspective view of the roller raw material used for a copying machine. The perspective view of the roller used for a copying machine.

Explanation of symbols

  T ... drilling tool, W ... elastic foam, A1 ... setup area, A3 ... compression area, A4 ... drilling area, A5 ... compression release area, Wh, 12f, 45 ... insertion hole, 11 ... storage jig, 12 ... storage Case, 12a ... receiving hole, 13 ... first case piece, 13a, 14a, 24a, 42a ... receiving groove, 14 ... second case piece, 15 ... compression pin, 18 ... connecting and holding tool as connecting tool and holding tool 21 ... Pallet, 22 ... Substrate, 24 ... Lower foam housing member, 31 ... Pallet loading mechanism, 32 ... Pallet unloading mechanism, 35 ... Second case piece detaching mechanism, 42 ... Upper foam housing member, 43 ... Connection / Detachment mechanism 61, punching mechanism, 71 transfer mechanism, 73 transfer arm, 81 transfer arm, 81 first transfer mechanism, 82 second transfer mechanism.

Claims (6)

A step of setting a storage case constituting an elastic foam storage jig that can be handled as a single unit on a pallet in a setup area;
Before or after the above step, storing a part or all of the elastic foam in an uncompressed state in the storage hole of the storage case;
After the above process, the container case together with the pallet is transported from the setup area to the compression area, and a compression pin is pushed into the container hole of the container case to compress the elastic foam and accommodate it in the container hole;
After the above steps, attaching a holder to the housing case and the compression pin and holding the compression pin in the compression position of the elastic foam;
After the above steps, the single holding jig on the pallet is transported from the compression area to the drilling area, the holding jig is rotated, and the drilling tool enters the compressed elastic foam in the holding jig. And forming an insertion hole in the elastic foam,
After the above step, the step of transporting the storage jig from the perforation area onto the pallet in the decompression area and removing the holder from the storage case;
In parallel with the above process, releasing the compressed state of the elastic foam by the compression pin;
A method for perforating an elastic foam, comprising: after the above step, a step of transporting the storage case together with the pallet from the compression release area to the extraction area and taking out the processed elastic foam from the storage case. A pallet for setting a storage case constituting an elastic foam storage jig in the setup area;
A pallet carry-in mechanism for carrying the pallet from the setup area into the compression area;
A compression mechanism for compressing and accommodating the elastic foam in the accommodation hole by pushing a compression pin into the accommodation hole of the accommodation case in the compression area;
A holder mounting mechanism for mounting a holder on the housing case and the compression pin and holding the compression pin in a compression position of the elastic foam;
A first jig transfer mechanism for conveying a single accommodation jig on the pallet from the compression area to the perforation area;
In the perforation area, the perforation mechanism for rotating the accommodation jig and allowing the perforation tool to enter the compressed elastic foam in the accommodation jig to form an insertion hole in the elastic foam;
A second jig transfer mechanism for transporting the storage jig from the perforation area onto a pallet present in the compression release area;
A holder removal mechanism for removing the holder from the storage case;
A compression release mechanism for releasing the compression state of the elastic foam by the compression pin;
An elastic foam punching device comprising: a pallet unloading mechanism for transporting the storage case together with the pallet from the compression release area to the take-out area. In Claim 2, the said storage case is divided | segmented into the 1st case piece and the 2nd case piece along the plane which passes along the axis line of a storage hole, and the both ends of the 1st and 2nd case piece are connected by the connector. The connecting tool is configured as a connecting / holding tool integrally with the holding tool, and the first case piece is configured to be set at a predetermined position of the pallet, while the compression tool is The mechanism includes a second case piece attaching / detaching mechanism that joins or separates the second case piece with respect to the first case piece on the pallet, and the connecting / holding member is attached to both ends of the first and second case pieces. And a connecting / holding mechanism detaching mechanism, and a compression pin pushing mechanism for compressing the elastic foam by pushing a compression pin into the accommodation hole of the accommodation jig. Function as a mechanism Perforating apparatus elastic foam, characterized in that it is given. 4. The pallet according to claim 3, wherein the pallet includes both a substrate for holding the single first case piece in a predetermined position, and an accommodation groove of the first case piece provided on the upper surface of the substrate and supported by the substrate. It is composed of an elastic foam projecting outward and a pair of lower foam housing members having housing grooves for housing the lower half of the compression pin, while the lifting frame constituting the second case piece detaching mechanism includes An upper foam housing member having a housing groove for housing the elastic foam protruding from the first case piece and the upper half of the compression pin is in contact with the upper surface of the lower foam housing member, and the connection・ When connecting / removing the holder to / from both ends of the housing case by the holder detaching mechanism, the lower and upper foam housing members are switched from the operating position contacting the both ends of the housing case to the retracted position. Perforating apparatus elastic foam, characterized in that it is configured. 5. The drilling mechanism according to claim 2, wherein the drilling mechanism holds the posture of the storage jig vertically, and the drilling tool is configured to enter the elastic foam from below the storage jig. An elastic foam punching device characterized by the above. The first and second jig transfer mechanisms according to claim 5, wherein the first and second jig transfer mechanisms include a rotation support cylinder that is reciprocally swiveled around a vertical axis, and a pair of transfer reciprocatingly swiveling around a horizontal axis with respect to the rotation support cylinder. An elastic foam perforating apparatus comprising: a mounting arm; and an adsorbing tool that is attached to the distal ends of both arms and adsorbs and holds the upper surface of the housing case.

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