KR102325711B1 - Method of manufacturing bellows - Google Patents

Abstract

(Project) To provide a method for manufacturing a bellows capable of producing a bellows-like cover with strong resistance to drugs.
(Solution) A forming die having fold lines for forming a bellows shape and a plate-shaped base material are superposed to form a laminated sheet body, and the laminated sheet body is bent into a bellows shape, compressed and heated. After heating, the molding die is removed from the laminated sheet body. The base material is formed of, for example, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), polyurethane (PU) or the like, and a bellows phase is formed without using a rubber-based material.

Description

Method of manufacturing bellows {METHOD OF MANUFACTURING BELLOWS}

The present invention relates to a method for manufacturing a bellows.

In order to protect the elastic displacement part or the bending displacement part of a machine etc. from disturbance factors, such as liquid, dust, light rays, moisture, a bellows-shaped cover is widely used as a telescopic-type cover which shields them. For example, in a processing device using a liquid such as a cutting device, a bellows-shaped cover protects each shaft portion from scattering of the liquid (refer to Patent Document 1).

For a bellows-like cover that prevents liquid leakage and is required to be durable, a rubber-based material (such as chlorosulfonated polyethylene, chloroprene rubber, nitrile butazen rubber, or urethane rubber) is used. For example, on a sheet coated with rubber on both sides of a nylon core, put a film sheet with fold lines (dotted lines) or cut-out holes in it so that there are no air bubbles in between them. ) to form a laminate to be a bellows by bonding the entire surface with an adhesive (see Patent Document 2).

Japanese Patent Laid-Open No. 2001-135593 Japanese Patent Publication No. 4-55855

By the way, the chemical|medical agent used in a processing apparatus, for example, oxirane, changes the quality of rubber-type (chlorosulfonated polyethylene rubber, chloroprene rubber, nitrile-butazen rubber, etc.). When a liquid containing oxirane is attached to a bellows-like cover made of a rubber-based material over a long period of time, the rubber deteriorates and absorbs the liquid. There was a task to do.

Then, this invention has been made in view of the above, and an object of this invention is to provide the manufacturing method of the bellows which can manufacture the bellows-shaped cover with strong resistance to a chemical|medical agent.

In order to solve the above-mentioned problems and achieve the object, the method for manufacturing a bellows according to the present invention is to form a laminated sheet body by superposing a base material made of a synthetic resin sheet and a sheet-like mold with fold lines formed thereon. After carrying out the preparation step, the temporary fixing step of temporarily fixing the base material of the laminated sheet body and the molding die to each other and fixing the temporary fixing step, the laminated sheet body is bent along the fold line, A bending step of bending into a bellows shape having a ridge and a trough, a heating step of heating the laminated sheet body in a compressed state until the ridge and the trough are brought into close contact with each other, and the heating step; After carrying out, a molding die removal step of removing the molding die from the laminated sheet body is provided, and the bellows-like shape is maintained by the base material alone.

Moreover, in the manufacturing method of the said bellows, it is preferable that the base material is any of polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), and polyurethane (PU).

Further, in the method for manufacturing the bellows, in the bending step, it is preferable to bend into a U-shaped bellows comprising a horizontal sheet portion and a pair of vertical portions bent substantially vertically downward from both ends of the horizontal sheet portion.

In the method for manufacturing a bellows of the present invention, a bellows shape is formed on a base material made of a synthetic resin sheet using a sheet-like molding die having fold lines, and the bellows shape is maintained by a single base material. Thereby, since a bellows shape can be formed without using a rubber-type material, the bellows-shaped cover with strong resistance to a chemical|medical agent can be manufactured.

BRIEF DESCRIPTION OF THE DRAWINGS It is an exploded perspective view which shows the structural example of a processing apparatus.
2 is a flowchart showing a method for manufacturing a bellows.
It is a top view which shows the structural example of a base material.
4 is a top view showing a configuration example of a sheet-like molding die.
Fig. 5 is a top view showing an example of temporary fixing of a sheet-like molding die and a base material (Part 1).
Fig. 6 is a top view showing an example of temporary fixing of a sheet-like molding die and a base material (Part 2).
Fig. 7 is a perspective view showing a sheet-like molding die and a first bending example of a base material;
Fig. 8 is a perspective view showing a sheet-like molding die and a second bending example of a base material;
Fig. 9 is a perspective view showing an example of heating a sheet-like molding die and a base material;
It is a perspective view which shows the structural example of the sheet-like shaping|molding die and base material after heating.
11 is a perspective view showing a base material after separation.
Fig. 12 is a perspective view showing a sheet-like mold after separation;

EMBODIMENT OF THE INVENTION The form (embodiment) for implementing this invention is demonstrated in detail, referring drawings. This invention is not limited by the content described in the following embodiment. In addition, the components described below include those that can be easily assumed by those skilled in the art, and those that are substantially the same. In addition, the structures described below can be combined suitably. Moreover, various abbreviation|omission, substitution, or change of a structure can be implemented in the range which does not deviate from the summary of this invention.

[Embodiment]

The processing apparatus which concerns on embodiment is demonstrated. BRIEF DESCRIPTION OF THE DRAWINGS It is an exploded perspective view which shows the structural example of a processing apparatus. The processing apparatus 1 cuts a wafer (not shown). The machining apparatus 1 includes a chuck table 10 , a machining means 20 , a calculation feed means 30 , a cut feed means 40 , a machining feed means 50 , and a control means not shown. is provided.

A wafer is a semiconductor wafer or an optical device wafer in which a semiconductor device is formed on a substrate such as silicon or gallium arsenide, or an optical device is formed on a substrate such as sapphire or SiC, an inorganic material substrate, a flexible resin material substrate, a ceramic substrate or a glass plate, various processing materials.

Here, the X-axis direction is a direction in which the wafer held by the chuck table 10 is processed and transferred. The Y-axis direction is orthogonal to the X-axis direction on the same horizontal plane and is a direction in which the processing means 20 is calculated and transferred with respect to the wafer held by the chuck table 10 . The Z-axis direction is a direction orthogonal to the X-axis direction and the Y-axis direction, and is a vertical direction in the present embodiment.

The chuck table 10 is disposed on the upper surface of the apparatus main body 2 so as to be movable in the X-axis direction. The chuck table 10 is formed in a disk shape and has a holding surface 11 . The chuck table 10 is rotated on a rotational axis orthogonal to the center of the holding surface 11 by a rotation means (not shown). The holding surface 11 is an upper end surface of the chuck table 10 in the vertical direction, and is formed to be flat with respect to a horizontal surface. The holding surface 11 is made of, for example, a porous ceramic or the like, and holds the wafer by a negative pressure of a vacuum suction source (not shown).

The processing means 20 processes the wafer held by the chuck table 10 . The processing means 20 is arrange|positioned by the apparatus main body 2 via the calculation transfer means 30 and the cut transfer means 40, and is formed. The processing means 20 includes a cutting blade 21 , a spindle 22 , a housing 23 , and a pair of processing water supply nozzles 24 . The cutting blade 21 is a cutting grindstone formed in an ultra-thin disk shape and annular shape. The spindle 22 removably attaches the cutting blade 21 to the front-end|tip. The housing 23 has a drive source, such as a motor (not shown), and supports the spindle 22 so that it can freely rotate around a rotation axis in the Y-axis direction. The machining water supply nozzle 24 is disposed so that the cutting blade 21 is interposed therebetween, and supplies the machining water to the cutting blade 21 . The machining means 20 rotates the spindle 22 at high speed to cut the wafer with the cutting blade 21 , and supplies machining water to the cutting blade 21 through the machining water supply nozzle 24 . .

The calculation transfer means 30 relatively moves the chuck table 10 and the machining means 20 in the Y-axis direction. For example, the calculation transfer means 30 has a drive source, such as a ball screw 31 and a pulse motor 32 extending in the Y-axis direction, and supports the cutting transfer means 40 Y-axis movement base ( 33) is moved in the Y-axis direction.

The cutting feed means 40 moves the machining means 20 in the Z-axis direction orthogonal to the holding surface 11 of the chuck table 10 . For example, the cutting feed means 40 has a drive source, such as a ball screw and a pulse motor 41 (not shown) extending in the Z-axis direction, and the Z-axis moving member 42 which supports the processing means 20 . ) is moved in the Z-axis direction.

The machining feed means 50 relatively moves the chuck table 10 and the machining means 20 in the X-axis direction. For example, the processing transfer means 50 includes a pair of guide rails 51 extending in the X-axis direction, a ball screw 52 arranged parallel to the guide rail 51 , and a ball screw 52 . It is fixed to a nut (not shown) screwed to the guide rail (51) and is provided with an X-axis movement base (53) arranged and formed so as to slide freely on the guide rail (51), and a pulse motor (54) for rotating the ball screw (52), have. The processing transfer means 50 moves the X-axis movement base 53 supporting the chuck table 10 in the X-axis direction by rotating the ball screw 52 by the pulse motor 54 .

Here, in order to prevent the machining water supplied when processing the wafer by the cutting blade 21 from adhering to the ball screw 52 of the machining feed means 50, the machining feed means 50 has a cover member ( 60) and the bellows mechanism 70 are arranged.

The cover member 60 is a plate-shaped member and is formed in a substantially square shape when viewed from the Z-axis direction. The cover member 60 is formed in a U-shape when viewed in the X-axis direction, and the upper surface portion 61 and both ends in the Y-axis direction are bent downward in the Z-axis direction to form a cut-out portion 62 . ) is provided. The cover member 60 is disposed between the X-axis movement base 53 supporting the chuck table 10 and the chuck table 10 . The cover member 60 is formed so that the length of the width direction (Y-axis direction) is slightly longer than the length of the width direction (Y-axis direction) of the processing transfer means 50 .

The bellows mechanism 70 is arranged so as to extend in the X-axis direction via the cover member 60 . The bellows mechanism 70 is composed of a first bellows portion 71A and a second bellows portion 71B, a first bellows portion 71A is disposed on one side of the cover member 60, and a cover member ( 60), a second bellows portion 71B is disposed on the other side.

The 1st bellows part 71A is comprised by the two bellows members 710A, 710B. The bellows members 710A, 710B are made of a synthetic resin, for example, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), polyurethane (PU), or the like. Bellows members 710A, 710B are formed in a U-shape when viewed from the X-axis direction, and include a horizontal sheet portion 710a and a pair of vertical portions 710b. In the horizontal sheet part 710a, along a horizontal plane, the peak part 710c and the valley part 710d are formed alternately in the expansion-contraction direction (X-axis direction). The length in the width direction (Y-axis direction) of the horizontal sheet part 710a is substantially the same as the length in the width direction (Y-axis direction) of the cover member 60 . That is, the length of the horizontal sheet part 710a in the width direction (Y-axis direction) is formed slightly longer than the length of the width direction (Y-axis direction) of the process transfer means 50 . The vertical portion 710b of the bellows members 710A and 710B is formed by bending downward substantially vertically from both ends in the width direction (Y-axis direction) of the horizontal sheet portion 710a. The pair of vertical portions 710b is formed in a bellows shape, and the ridge portions 710e and trough portions 710f are alternately formed in the expansion/contraction direction. The bellows member 710A and the bellows member 710B are connected via a guide frame 711 . The guide frame 711 is formed in the same U-shape as the bellows members 710A and 710B when viewed in the X-axis direction, and at each lower end of the guide frame 711, a roller 711a for good sliding ) is installed. A frame (not shown) is attached to a cross section in the X-axis direction of the bellows member 710B connected to the cover member 60, and the cross section of the frame and the cover member 60 is fixed by a screw (not shown). .

The 2nd bellows part 71B is comprised similarly to the 1st bellows part 71A. That is, the 2nd bellows part 71B is comprised by the two bellows members 710C, 710D. The bellows members 710C and 710D include a horizontal seat portion 710a and a pair of vertical portions 710b. In the horizontal sheet part 710a, along a horizontal plane, the peak part 710c and the valley part 710d are formed alternately in the expansion-contraction direction (X-axis direction). The length in the width direction (Y-axis direction) of the horizontal sheet part 710a is substantially the same as the length in the width direction (Y-axis direction) of the cover member 60 . The vertical portion 710b of the bellows members 710C and 710D is formed by bending downward substantially vertically from both ends in the width direction (Y-axis direction) of the horizontal sheet portion 710a. The pair of vertical portions 710b is formed in a bellows shape, and the ridge portions 710e and trough portions 710f are alternately formed in the expansion/contraction direction. The bellows member 710C and the bellows member 710D are connected via a guide frame 711 . Each of the lower ends of the guide frame 711 is equipped with a roller 711a for good sliding. A frame 713 is attached to a cross section in the X-axis direction of the bellows member 710C connected to the cover member 60, and the cross sections of the frame 713 and the cover member 60 are attached to a screw (not shown). is fixed by

Thus, the 1st bellows part 71A and the 2nd bellows part 71B connected to the cover member 60 have covered the upper part of the process feed means 50 in the X-axis direction. When the cover member 60 moves in the X-axis direction with the movement of the chuck table 10, the first bellows portion 71A is extended and the second bellows portion 71B is contracted, or the first The bellows portion 71A is contracted to extend the second bellows portion 71B. In addition, in the moving range of the cover member 60, the first bellows part 71A or the second bellows part 71B does not fully extend, and the first bellows part 71A or the second bellows part 71B does not extend completely. There is also no case where the bellows portion 71B is completely contracted to prevent movement of the cover member 60 .

On the lower side of the bellows mechanism 70, a drainage means 80 for receiving and discharging the processing water flowing down together with the processing waste from the bellows mechanism 70 is arranged. The drainage means 80 includes a drainage passage 81 and a drain pipe 82 . The drain 81 is formed in a substantially rectangular frame shape to surround the first bellows part 71A and the second bellows part 71B connected to the cover member 60, and the part through which the processing water flows is formed in a groove shape, have.

The drainage passage 81 is provided with a bottom plate 810 in which the vertical portion 710b of the bellows members 710 (710A to 710D) of the bellows mechanism 70 is positioned, and the bottom plate 810 standing upright on the inner peripheral side. An inner peripheral wall 811 and an outer peripheral wall 812 erected on the outer peripheral side of the bottom plate 810 are provided. The inner peripheral wall 811 is located inside the vertical portion 710b of the bellows member 710 , and the outer peripheral wall 812 is located outside the vertical portion 710b of the bellows member 710 . Thereby, the processing water flowing down from the vertical portion 710b of the bellows member 710 is received by the bottom plate 810, and the processing water received by the bottom plate 810 can be flowed toward the drain pipe 82. have.

Fixing brackets 813 are attached to both ends of the inner peripheral wall 811 of the drainage channel 81 in the X-axis direction. A frame 712 attached to the end face of the bellows member 710A of the first bellows part 71A is fixed to one fixing bracket 813, and to the other fixing bracket 813, the second bellows part A frame 714 mounted to the end face of the bellows member 710D of 71B is fixed. Thereby, the both ends in the X-axis direction of the bellows mechanism 70 are fixed.

The drain pipe 82 is coupled to an opening (not shown) in which the bottom plate 810 of the drainage passage 81 is partially opened, and discharges the processed water stored in the drainage passage 81 to the outside. For example, the drainage channel 81 is slightly inclined, and is arrange|positioned, and the drain pipe 82 is arrange|positioned at the lowest position. Thereby, the working water of the drainage channel 81 flows toward the drain pipe 82 of the lowest position, and is discharged|emitted from the drain pipe 82 to the outside.

The drainage means 80 controls each component of the processing apparatus 1 . For example, the drain means 80 is connected to a drive circuit (not shown) that drives the pulse motors of the calculation feed means 30 , the cut feed means 40 , and the machining feed means 50 , and controls the drive circuit Thus, the position of the chuck table 10 in the X-axis direction and the position of the machining means 20 in the Y-axis direction and the Z-axis direction are determined.

Next, the manufacturing method of the bellows which concerns on embodiment is demonstrated. 2 is a flowchart showing a method for manufacturing a bellows. 3 : is a top view which shows the structural example of a base material. It is a top view which shows the structural example of a sheet-like shaping|molding die. Fig. 5 is a top view showing a sheet-like molding die and an example of temporary fixing of the base material (Part 1), in which the molding die is disposed on the upper surface side. Fig. 6 is a top view showing a sheet-like molding die and an example (2) of temporary fixing of the base material, in which the base material is arranged on the upper surface side. 7 : is a perspective view which shows the 1st bending example of a sheet-like shaping|molding die and a base material. Fig. 8 is a perspective view showing a sheet-like molding die and a second bending example of the base material. Fig. 9 is a perspective view showing an example of heating a sheet-like molding die and a base material; It is a perspective view which shows the structural example of the sheet-like shaping|molding die and base material after heating. 11 is a perspective view showing the base material after separation. Fig. 12 is a perspective view showing a sheet-like molding die after separation.

First, an operator overlaps the base material 90 and the sheet-like shaping|molding die 100 in which the fold line was formed, and forms the lamination|stacking sheet body 110 (step S1 shown in FIG. 2; preparation step). Here, the base material 90 and the molding die 100 are synthetic resin sheets formed of polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), polyurethane (PU), or the like. The thickness of the base material 90 is about 20 micrometers - 300 micrometers, and the hardness (Rockwell) of the base material 90 is about R60-120.

The base material 90 and the shaping|molding die 100 are substantially the same size, as shown in FIG.3 and FIG.4, and are formed in the square shape. In the shaping|molding die 100, the some substantially linear fold line 101 extended in the width direction, and the triangular hole 102 are formed. The fold line 101 is for forming the peak 710c and the valley 710d of the bellows member 710A. For example, as for the fold line 101, the fold line 101a for ridges and the fold line 101b for troughs are alternately formed at regular intervals in the expansion/contraction direction of the shaping|molding die 100. The fold line 101a for ridges and the fold line 101b for troughs are formed so that a hole such as a dotted line is formed in a substantially straight line so as to be bendable. In addition, it is not limited to a dotted line, You may form so that bending is possible by forming a linear recessed part in the surface or back surface of the shaping|molding die 100.

The triangular hole 102 is for forming the vertical part 710b, and the shaping|molding die 100 is opened and it is formed. The triangular hole 102 is formed in an isosceles triangle, and the bottom edge 102a is formed on a line that substantially perpendicularly bends both ends of the base material 90 in the width direction, and adjacent mountains in the expansion and contraction direction. It is formed with the same length as the interval of the fold line 101a of the bouillon. Moreover, the apex 102b of the triangular hole 102 is formed on the fold line 101b for troughs in the vertical part 710b side.

The forming die 100 configured in this way is superimposed on the base material 90 to form the laminated sheet body 110 . At this time, the forming die 100 and the base material 90 are overlapped so that the base material 90 does not leak out of the forming die 100 . Next, an operator temporarily fixes and fixes the base material 90 of the laminated sheet body 110, and the shaping|molding die 100 mutually (step S2; temporary fixing step). For example, as shown in FIG. 5, first, in a state in which the laminated sheet body 110 is placed so that the molding die 100 is on the upper surface side, along the arrangement direction of the triangular holes 102, A heat-resistant tape 111 is attached so as to cover the triangular hole 102 . Thereby, the base material 90 exposed from the triangular hole 102 and the shaping|molding die 100 can be bonded partially with the heat-resistant tape 111. As shown in FIG. Next, as shown in FIG. 6, the heat-resistant tape 111 is pasted to four sides of the outer peripheral part 112 of the laminated sheet body 110, and the outer peripheral part of the base material 90 and the outer peripheral part of the shaping|molding die 100 are bonded together. . In addition, FIG. 6 has shown the laminated sheet body 110 in which the base material 90 is arrange|positioned at the upper surface side.

Next, the operator bends the laminated sheet body 110 into a bellows shape (step S3; bending step). For example, as shown in FIG. 7, an operator folds the laminated sheet body 110 along the fold line 101a for the ridge part of the shaping|molding die 100, and folds the fold line 101b for rib part. Accordingly, the laminated sheet body 110 is valley-folded to bend the laminated sheet body 110 into a bellows shape having the peaks 91 and the valleys 92 .

Further, as shown in FIG. 8 , the operator folds the triangular ball 102 along the perpendicular bisector 102d of the triangular ball 102 and folds the two equilateral sides 102c into mountains. Thereby, the end 113 of the laminated sheet body 110 is bent into a bellows shape substantially vertically, and a pair of vertical portions 710b are formed at both ends of the horizontal sheet portion 710a.

Next, an operator heats the laminated sheet body 110 in which the pair of vertical part 710b and the horizontal sheet|seat part 710a were formed with the heating apparatus not shown (step S4; heating step). For example, as shown in FIG. 9 , the operator folds and contracts the laminated sheet body 110 in the expansion/contraction direction, and when the peaks 91 and the valleys 92 of the laminated sheet body 110 are in close contact with each other, to fix each of the vertical portions 710b and the horizontal seat portion 710a by the fasteners 114. And the operator heats the laminated sheet body 110 with a heating device in the state in which the laminated sheet body 110 was compressed. The heating device heats the laminated sheet body 110 with boiling water, hot air, steam, or the like, for example. The temperature at which the laminated sheet body 110 is heated is about 50° to 300°, and the heating time is about 1 to 10 minutes. Preferably, the heating temperature is about 80° to 200°, and the heating time is about 2 minutes to 5 minutes. For example, the heating temperature is set to about 130°, and the heating time is set to about 3 minutes.

Next, an operator removes the shaping|molding die 100 from the laminated sheet body 110 (step S5; shaping|molding die removal step). For example, the operator dissipates the heat of the laminated sheet body 110 by natural cooling or the like. And an operator removes the fastener 114 from the cooled laminated sheet body 110, and, as shown in FIG. 10, the compressed laminated sheet body 110 is extended. An operator peels the heat-resistant tape 111 from the laminated sheet body 110, and removes the shaping|molding die 100 from the base material 90, as shown in FIG.11 and FIG.12. Since the base material 90 from which the shaping|molding die 100 was removed is heat-processed in a compressed state, the bellows-like shape is maintained by the base material 90 single-piece|unit, and the bellows member 710 is formed.

After use, the shaping|molding die 100 may be returned to a planar shape, and may be reused. For example, it heat-processes while pressurizing the shaping|molding die 100 after use from both sides with a flat plate (not shown), and returns to a planar shape. Moreover, you may bend the shaping|molding die 100 formed in the bellows shape in the opposite direction and return it to a planar shape.

As described above, according to the method for manufacturing a bellows according to the embodiment, the base material 90 is formed into a bellows shape using the molding die 100 in which the fold line 101 and the triangular hole 102 are formed, and the base material ( 90) to maintain the Bellows Award by the group. The base material 90 is formed of, for example, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), polyurethane (PU), etc., and is bellows-like without using a rubber-based material. can be easily formed. Thereby, the bellows member 710 with strong resistance to a chemical|medical agent can be manufactured without being altered by the chemical|medical agent used in the processing apparatus 1, for example, oxirane. Moreover, since a rubber-based material is not used, weight reduction can be realized, and the burden on the bent portion of the bellows member 710 can be reduced. In addition, as in the prior art, a high-level function of applying an adhesive to the entire surface of the sheet in the bonding step or preventing the mixing of air bubbles at the time of bonding and bonding is not required, and the operation time-consuming process is reduced. , the process can be simplified and work efficiency can be improved.

Further, the bellows member 710 formed of the base material 90 includes a horizontal sheet portion 710a and a pair of vertical portions 710b bent substantially vertically downward from both ends of the horizontal sheet portion 710a. It is bent with a KO cut bellows. Even such a complicated bellows shape can be easily formed using the shaping|molding die 100.

[Variation]

Next, a modified example of the embodiment will be described. The surface of the bellows member 710 may be coated with a resin-based buffer cloth. For example, after the operator removes the molding die 100 from the base material 90 (after step S5), an acrylic resin adhesive is applied to the surface of the bellows-like base material 90, and the bellows-like base material 90 A resin-based buffer fabric is bonded and laminated to the surface of the Thereby, the damage to which the bellows member 710 receives by the edge material which scatters when it processes by the processing means 20 can be reduced.

In addition, a bellows-shaped water return film (not shown) for preventing the spray of processing water from scattering upward from the drainage passage 81 may be formed in the vertical portion 710b of the bellows member 710 . For example, after the operator removes the molding die 100 from the base material 90 (after step S5), from one end side to the other end side in the expansion and contraction direction of the bellows member 710, The bellows-shaped water return film protruding from the inside of the vertical part 710b so as to cover the upper part is adhered and fixed.

Moreover, although the compressed laminated sheet body 110 was fixed with the fastener 114, it is not limited to this. For example, you may heat the compressed laminated sheet body 110 by clamping it with a pair of plate-shaped members and fixing it.

Moreover, although the example which removes the fastener 114 from the lamination|stacking sheet body 110 after cooling was demonstrated, as long as the bellows shape can be fitted to the base material 90, the timing of removing the fastener 114 is not limited after cooling.

Moreover, although an operator manufactured the bellows member 710 from the base material 90 using the shaping|molding die 100, you may manufacture automatically using the bellows manufacturing apparatus not shown. For example, the bellows manufacturing apparatus includes an overlapping means for forming a laminated sheet body 110 by overlapping a base material 90 and a molding die 100, and a base material 90 of the laminated sheet body 110 and a molding die ( Temporary fixing means for temporarily fixing 100) to each other by means of a heat-resistant tape 111, a bending means for bending the laminated sheet body 110 into a bellows shape, and hot water, hot water, steam or the like to temporarily fix the laminated sheet body 110. A heating means for heating the , and a removal means for removing the molding die (100) from the laminated sheet body (110) are provided.

In addition, the bellows member 710 manufactured by the above-mentioned method for manufacturing the bellows described an example in which the machining transfer means 50 is protected from machining water and machining chips generated when cutting the wafer, but limited to this. doesn't happen For example, the bellows member 710 may be used as a thing to protect the movable part and shaft part of processing apparatuses, such as a lathe and a price board, from cutting fluid containing oil, and cutting chips.

1: processing device
50: processing feed means
60: cover member
70: bellows mechanism
71A: first bellows part
71B: second bellows part
710 (710A ~ 710D): Bellows member
710a: horizontal seat portion
710b: vertical
80: drainage means
81: drain
90: base material
100: molded
101: fold line
101a: fold line for obstetrics and women
101b: fold line for bone
102: triangle ball
110: laminated sheet body
111: heat-resistant tape
114: fixture

Claims (3)

A preparatory step of superposing a base material made of a synthetic resin sheet and a sheet-like mold with fold lines formed thereon to form a laminated sheet body;
a temporary fixing step of temporarily fixing and fixing the base material and the molding die of the laminated sheet body to each other;
After carrying out the temporary fixing step, the laminated sheet body is bent along the fold line, and a bending step of bending the laminated sheet body into a bellows shape having a peak and a valley;
A heating step of heating the laminated sheet body in a compressed state until the peaks and the valleys come into close contact with each other;
After performing the heating step, a molding die removal step of removing the molding die from the laminated sheet body is provided;
A method for manufacturing a bellows in which the shape of the bellows shape is maintained by the base material alone,
The fold line of the molding die is formed by a straight hole or a linear recess,
In the preparation step, a method for manufacturing a bellows characterized in that one sheet of the molding die is stacked on the base material. The method of claim 1,
The base material is polyethylene terephthalate (PET), polyvinyl chloride (PVC), polypropylene (PP), and a method for producing a bellows, characterized in that any one of polyurethane (PU). 3. The method according to claim 1 or 2,
In the bending step, the bellows manufacturing method is characterized in that bending is performed into a U-shaped bellows comprising a horizontal sheet portion and a pair of vertical portions bent vertically downward from both ends of the horizontal sheet portion.

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