JP4034075B2 - Insulated container manufacturing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a manufacturing apparatus for completing a heat insulating container by assembling a sleeve around the outer periphery of a container main body.
[0002]
[Prior art]
As a paper container suitable for injecting hot water or the like, for example, as described in Japanese Utility Model Laid-Open No. 52-97282 and Japanese Patent Laid-Open No. 4-201840, the outer periphery of the container body is covered with a sleeve to improve heat insulation. Things are known.
[0003]
[Problems to be solved by the invention]
When manufacturing the above-mentioned heat insulation container, processing of the rib which reinforces the Peter line which shows the appropriate amount position of injections, such as hot water, and a container body, or the shape of a curl part of a container body is suitable for adhesion of a film-like lid Various processes such as processing are required, and development of an apparatus capable of efficiently processing such a series of operations is desired.
[0004]
An object of this invention is to provide the apparatus which can manufacture the heat insulation container mentioned above efficiently.
[0005]
[Means for Solving the Problems]
The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.
[0012]
Claim 1 This invention is a manufacturing apparatus for manufacturing a heat-insulating container (1) by combining a sleeve (3) with the outer periphery of a container body (2), and a container holder for holding the container body upside down ( 100), a sleeve supply device (50) for covering the outer periphery of the container main body held by the container holder from above the container main body, and the sleeve applied to the container main body to the container main body A sleeve aligning device (60) that pushes in toward the container, and the sleeve aligning device includes an aligning jig (61) that faces the upper end of the sleeve that is placed on the container body, and the aligning jig is placed in the container. And a jig body (6) having a pushing portion (610b) capable of coming into contact with the upper end portion of the sleeve. 0) and a centering member (612) that engages with the sleeve prior to the pushing of the sleeve by the pushing-in portion and displaces the sleeve in a radial direction so that the core is aligned with the container body. The centering member is provided coaxially with the jig body and movably in the pushing direction of the sleeve. The outer periphery of the end of the centering member facing the sleeve faces the sleeve. The above-described problem is solved by a heat-insulating container manufacturing apparatus characterized in that a centering surface (612a) having a diameter that decreases as it is provided.
[0013]
According to this invention, the sleeve placed on the outer periphery of the container body can be displaced in the radial direction of the container body by the centering surface of the centering member and aligned with the container body, and then pushed into the container body side. it can. Thereby, the possibility that the sleeve is pushed in while the cores of the sleeve and the container body are out of alignment and manufacturing defects occur is reduced. Since the centering member is coaxially provided with respect to the jig body of the centering jig, the centering member can be smoothly guided to the jig body to increase the reliability of the centering action. .
[0016]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a paper cup as a heat insulating container manufactured according to the present invention, and FIG. 2 shows an outline of a manufacturing procedure of the paper cup.
[0017]
As shown in these drawings, the paper cup 1 is configured by combining a cup body 2 as a container body and a sleeve 3 covering the outer periphery thereof. The cup body 2 is formed in a substantially truncated cone shape having a side wall 2a and a bottom portion 2b. A curled portion 2 c is formed at the mouth portion of the cup body 2 toward the outside. After forming the curled portion 2c, ribs 2d and 2e are formed on the side wall 2a so as to swell radially inward or outward of the cup body 2, respectively. The rib 2d is provided as a Peter line indicating an appropriate amount position of an injection (for example, hot water) to the cup body 2. On the other hand, the rib 2e is provided to reinforce the cup body 2. The rib 2e is formed somewhat larger than the rib 2d. The ribs 2d and 2e are determined to protrude so as not to contact the inner surface of the sleeve 3. For example, paper having a basis weight of 150 to 400 g / m @ 2 is used as the material of the cup body 2, and at least the inner surface thereof is covered with a coating layer (for example, a polyethylene layer) for improving heat resistance and water resistance. The rib 2d may be protruded outside the cup body 2, and the rib 2e may be protruded inside the cup body 2.
[0018]
The sleeve 3 is provided to improve the heat insulation of the paper cup 1. As is apparent from FIG. 2, both ends 3c and 3c of the fan-shaped blank 3 'are bonded together to form an inwardly curled portion 3a at the lower end, whereby the sleeve 3 is formed. Then, an adhesive 4 is applied to a predetermined adhesion range (hatched area in FIG. 2) BD set immediately below the curled portion 2 c of the cup body 2 to combine the cup body 2 and the sleeve 3, and the upper end of the sleeve 3. 3b and the side wall 2a of the cup body 2 are bonded to each other to form the paper cup 1. When the rib 2d swells outward in the radial direction of the cup body 2, the adhesion range BD is set so as not to include the rib 2d. For example, the basis weight of the sleeve 3 is 150 to 400 g / m. ² Paper is used. When the sleeve 3 is not likely to come into contact with hot water or water, it is not necessary to provide the sleeve 3 with a coating layer like the cup body 2.
[0019]
As shown in FIG. 3, the cross-sectional shape of the curled portion 2 c is a shape in which a perfect circle is crushed in the axial direction of the cup 2 (vertical direction in FIG. 3), in other words, a direction orthogonal to the axial direction of the cup 2. The ruled line 2f is thinly formed at the outer peripheral end. When the thickness of the cup body 2 is t, there is a relationship of the following formula (1) between the height A in the axial direction of the curled portion 2c and the width B in the direction perpendicular thereto.
[0020]
[Expression 1]
2t <A <B (1)
That is, the height A of the curled portion 2c is larger than twice the thickness t of the cup body 2 and smaller than the width B of the curled portion 2c. If the curled portion 2c is formed in a flat shape in this way, the width C at which the curled portion 2c and the lid material 7 are bonded via the adhesive 4 when the film-like lid material 7 is attached to the curled portion 2c. And the lid member 7 can be reliably bonded with a predetermined strength. In addition, the suitable range of joining strength changes according to the kind of articles | goods accommodated in the inside of the cup main body 2. FIG. As an example, when pouring hot water into the cup body 2 with the lid member 7 partially peeled off like instant noodles and removing the lid member 7 after a lapse of a certain time, the force for peeling the lid member 7 is 400 to The bonding strength may be set so that the width is 900 gf / 15 mm.
[0021]
4 to 6 show an apparatus for forming the ribs 2d and 2e on the cup body 2 and assembling the sleeve 3 on the cup body 2 in the manufacturing process of the paper cup 1 shown in FIG. 4 is a plan view, FIG. 5 is a side view from the V direction in FIG. 4, and FIG. 6 is a side view from the VI direction in FIG.
[0022]
The apparatus 10 includes a frame 11 installed on the floor of a factory, a turntable 12 supported on the frame 11, and a drive mechanism 13 that rotates the turntable 12 horizontally around its center line. ing. For example, the drive mechanism 13 transmits the rotational motion of the prime mover 14 to the turntable 12 while decelerating using a transmission means such as a chain or a gear. Twelve cup holders 100... 100 are attached to the outer periphery of the turntable 12 at equal intervals in the circumferential direction as container holders. The cup holder 100 holds the cup body 2 in an inverted state from the inside to the top. Details will be described later.
[0023]
The driving mechanism 13 intermittently drives the turntable 12 in the direction of arrow F in FIG. As a result, the same number of stations (stop positions of the holder 100) ST ... ST as the cup holder 100 are defined around the turntable 12. In some stations ST, the cup supply device 20, the processing devices 30A and 30B, the gluing device 40, the sleeve supply device 50, the sleeve aligning device 60, the inspection device 70, and the discharge are provided as devices necessary for manufacturing the cup 1. A device 80 is provided. Each apparatus 20-80 performs the work assigned to each apparatus in synchronization with the rotational drive of the turntable 12. The outline of each device is as follows.
[0024]
When the turntable 12 is stopped and the empty cup holder 100 is fed below the cup supply device 20, the cup supply device 20 takes out one cup body 2 from the lower end of the magazine 21 (see FIG. 6) in synchronization with it. Supply to cup holder 100. The cup body 2 attached to the magazine 21 has no ribs 2d and 2e, and the curled portion 2c has a substantially circular cross-sectional shape.
[0025]
When the turntable 12 stops, the processing devices 30A and 30B form ribs 2d or 2e on the cup body 2 on the holder 100 supplied to the front thereof. The processing apparatus 30A also processes the curled portion 2c. The gluing device 40 sprays an adhesive 4 (see FIG. 2) for joining the cup body 2 and the sleeve 3 to a predetermined position on the outer periphery of the cup body 2. The sleeve supply device 50 supplies the sleeve 3 to the outer periphery of the cup body 2 to which glue has been applied. The sleeve aligning device 60 pushes the sleeve 3 placed on the cup body 2 into the open end side of the cup body 2 while aligning the core 3 with the cup body 2. The inspection device 70 inspects whether or not the cup body 2 and the sleeve 3 are correctly combined and whether or not the sleeve 3 is correctly molded. Then, the discharge device 80 removes the paper cup 1 from the cup holder 100 and sends it out of the device.
[0026]
7 and 8 show details of the cup supply device 20. The cup supply device 20 includes the above-described magazine 21 that accumulates the cup body 2, three take-out rollers 22 ... 22 arranged at the lower end of the magazine 21, and a drive mechanism that rotationally drives each roller 22 around its own axis. 23. The magazine 21 is configured by attaching six rods 211... 211 around the through-hole 210a of the base 210, and the cup body 2 is accommodated in a state where the cup body 2 is inverted in the vertical direction (see FIG. 6). The roller 22 is attached to the base 210 with a part protruding from the through hole 210a (see FIG. 8). The curled portion 2c of the cup body 2 housed at the lower end of the magazine 21 rides on the upper surface of the roller 22, and the cup body 2 in the magazine 21 is supported in the vertical direction.
[0027]
The drive mechanism 23 includes a motor 230 as a drive source, a primary pulley 231 attached to the output shaft 230a of the motor 230, a secondary pulley 232 and an idler 233 that are rotatably attached to the base 210. ing. A belt 234 is wound between the pulleys 231 and 232 and the idler 233, and the secondary pulley 232 is coaxially connected to the roller 22 via a connecting shaft 235 rotatably supported by the base 210.
[0028]
When the turntable 12 rotates and the empty cup holder 100 is drawn out below the supply device 20, the output shaft 230a of the motor 230 is rotated by a predetermined amount. In conjunction with this rotation, each roller 22 rotates by a certain amount in the same direction at the same speed. When the rollers 22 rotate, the curled portion 2c of the cup body 2 supported on the rollers 22 engages with the spiral groove 220 formed on the outer periphery of each roller 22, whereby the cup body 2 is pulled out from the magazine 21. Then, it is supplied to the cup holder 100 below the through hole 210a.
[0029]
FIG. 9 shows details of the processing apparatus 30 </ b> A and the cup holder 100. The cup holder 100 is attached to the outer periphery of the turntable 12 and extends in the vertical direction, a rotating cylinder (rotating body) 102 attached to the outer periphery of the supporting shaft 101, and the outer periphery of the rotating cylinder 102. It has a spacer 103 and collars 104 and 105 attached. The rotary cylinder 102 is attached to the support shaft 101 via a bearing (not shown) and can freely rotate around the support shaft 101. The collars 104 and 105 can rotate together with the rotary cylinder 102. A disc-shaped wheel 106 that functions as a curl receiving member is integrally provided at the lower end of the rotating cylinder 102. The curled portion 2c of the cup body 2 comes into contact with the upper surface of the wheel 106, and the cup body 2 is supported in the vertical direction. Flanges 104 a and 105 a are integrally provided on the outer periphery of the collars 104 and 105. The outer periphery of the flanges 104a and 105a substantially contacts the side wall 2a of the cup body 2 at the positions where the ribs 2d and 2e are formed, whereby the cup body 2 is supported in the radial direction. That is, the flanges 104a and 105a each function as a side wall receiving member. Note that the upper end of the support shaft 101 protrudes above the rotating cylinder 102. An air flow path (not shown) that penetrates the support shaft 101 in the axial direction is formed at the center of the support shaft 101.
[0030]
As shown in FIGS. 9 and 10, the processing device 30A includes a rotation drive mechanism 31 for rotating the cup body 2 mounted on the cup holder 100, and the rotating cup body 2 pressed against the flange 105a. The rib processing mechanism 32 for processing the rib 2e, the retaining mechanism 33 for preventing the cup body 2 from being removed during processing, and the curled portion 2c are pressed against the wheel 106 and deformed as shown in FIG. A curl processing mechanism 34 is provided.
[0031]
The rotational drive mechanism 31 includes a motor 310 as a drive source and a drive wheel 311 that is rotationally driven by the motor 310. When the turntable 12 rotates and the cup holder 100 is fed out to the front surface of the processing apparatus 30 </ b> A, the drive wheel 311 comes into contact with the wheel 106 of the cup holder 100 and the rotating cylinder 102 of the cup holder 100 is attached to the support shaft 101. Driven around.
[0032]
The rib processing mechanism 32 includes an air cylinder 320 as a mold driving unit, and a mold pressing roller (mold pressing member) 321 that is driven in the radial direction of the cup holder 100 by the air cylinder 320. The embossing roller 321 is rotatably supported around a vertical axis 323 by a holder 322 attached to the piston rod 320a of the air cylinder 320. As shown in FIG. 11A, a concave groove 321a having a cross-sectional shape complementary to the outer periphery of the flange 105a is provided on the outer periphery of the embossing roller 321.
[0033]
When the rotary cylinder 102 of the cup holder 100 is rotationally driven by the rotary drive mechanism 31, the die pressing roller 321 is driven by the air cylinder 320 and pressed against the side wall 2 a of the cup body 2 in synchronization therewith. Accordingly, as shown in FIG. 11A, a part of the side wall 2a is sandwiched between the flange 105a and the embossing roller 321, and the rib 2e is gradually formed on the side wall 2a. When the embossing roller 321 goes around the side wall 2a at least once, the embossing roller 321 is separated from the cup body 2 and the processing of the rib 2e is completed.
[0034]
The retaining mechanism 33 includes an air cylinder 330 and a retaining plate 331 that is driven vertically by the air cylinder 330. The retaining plate 331 is attached to the piston rod 330a of the air cylinder 330 via a bearing 332, and is rotatable around the center line of the piston rod 330a. When the embossing roller 321 of the rib machining mechanism 32 is driven toward the cup body 2, the retaining plate 331 is driven downward in synchronism with it and comes into contact with the thread tail 2g (see FIG. 1) of the cup body 2. . This prevents the cup body 2 from being lifted with respect to the cup holder 100 during the formation of the rib 2e by the rib processing mechanism 32. When the formation of the rib 2e is completed, the retaining plate 331 is driven upward.
[0035]
The curl processing mechanism 34 includes an air cylinder 340 as a press driving means and a press roller 341 as a press member that is driven in the vertical direction by the air cylinder 340. A roller holder 342 is attached to the piston rod 340 a of the air cylinder 340. By this roller holder 342, the press roller 341 is rotatably supported around an axis extending in the radial direction of the cup body 2 on the holder 100. The contact position between the press roller 341 and the curled portion 2c is shifted by approximately 180 ° in the circumferential direction of the cup body 2 with respect to the contact position between the mold pressing roller 321 and the side wall 2a. In other words, the contact position between the press roller 341 and the curled portion 2c is set on the opposite side in the radial direction of the cup body 2 with respect to the contact position between the mold pressing roller 321 and the side wall 2a.
[0036]
When the die pressing roller 321 of the rib machining mechanism 32 is pressed against the side wall 2a of the cup body 2, the press roller 341 is driven downward by the air cylinder 340 and is pressed against the curled portion 2c in synchronization with the pressing roller 321 as shown in FIG. It is done. As a result, the curled portion 2 c is sandwiched between the press roller 341 and the wheel 106. When the cup body 2 rotates in this state, the curled portion 2c is gradually deformed into the cross-sectional shape shown in FIG. When the press roller 341 makes one or more rounds of the curled portion 2c, the press roller 341 is driven upward by the air cylinder 340, and the processing of the curled portion 2c is completed.
[0037]
A plurality of press rollers 341 may be provided as shown in FIG. The press roller 341 may be rotationally driven by a driving means such as a motor. The press roller 341 may be driven by mold driving means other than the air cylinder 340. However, when the air cylinder 340 is used as a press driving means, it is stored inside the air cylinder 340 when the press roller 341 gets over the step of the curled portion 2c connected to the bonded portion of the side wall 2a of the cup body 2. The air acts as a cushion against the piston rod 340a and the press roller 341 can be displaced by a small amount in the direction away from the curled portion 2c, so that excessive pressing force does not act on the stepped portion of the curled portion 2c, and the curled portion 2c. There is no risk of being crushed more than necessary. Therefore, when the press roller 341 is driven by means other than the air cylinder 340, the displacement when the press roller 341 gets over the step of the curled portion 2c is made by interposing a spring or the like in the driving force transmission path. It is desirable to allow.
[0038]
The processing device 30B is that the embossing roller 321 of the rib processing mechanism 32 is adjusted so as to press the cup body 2 against the flange 104a to form the rib 2d, and the curl processing mechanism 34 is omitted. Except for the processing apparatus 30A. Since the rib 2d swells inside the cup body 2, as shown in FIG. 11B, a protrusion 321b for forming the rib 2d is formed on the outer periphery of the embossing roller 321 of the processing apparatus 30B. A concave groove 104b having a cross-sectional shape complementary to the protrusion 321b is formed on the outer periphery.
[0039]
FIG. 14 shows details of the gluing device 40. The gluing device 40 has a spray gun 41 that sprays the adhesive 4 (see FIG. 2) toward the bonding range BD of the side wall 2a of the cup body 2, and the adhesive 4 is normally sprayed from the nozzle 410 of the spray gun 41. And an inspection device 42 for inspecting whether or not there is. In FIG. 14, the curled portion 2c of the cup body 2 is depicted in a simplified circle shape.
[0040]
The inspection device 42 is a digital camera that shoots a spray pattern in a photographing range 420 set between the nozzle 410 and the side wall 2a of the cup body 2 and an analog signal output from the camera 421 in accordance with a predetermined condition. An AD converter 422 for converting the signal into the signal, an arithmetic circuit 423 for performing a predetermined calculation based on a signal output from the AD converter 422, and a determination circuit for determining whether the spray pattern is good or not based on the calculation result of the arithmetic circuit 423 424 and a monitor 425 for displaying the determination result of the determination circuit 424.
[0041]
Since the adhesive 4 discharged from the spray gun 41 is white, a black background plate (not shown) is installed behind the imaging range 420. In the AD converter 422, the image data of the photographing range 420 output from the camera 421 is binarized with an appropriate threshold value, so that the background plate image is distinguished as black and the adhesive 4 image is distinguished as white. Input to the circuit 423. The arithmetic circuit 423 calculates the ratio of the white portion in the image of the photographing range 420 taken by the camera 421.
[0042]
Here, in order to detect a case where the adhesive 4 is discharged from the nozzle 410 in an inappropriate direction as a failure, the photographing range 420 is a white area when the adhesive 420 is shifted up and down with respect to the correct discharge direction. It is set to be slightly larger than the spray width so that the area is reduced. Accordingly, when a proper amount of the adhesive 4 is discharged from the nozzle 410 in a proper direction, the ratio of the white portion calculated by the arithmetic circuit 423 is within the proper range, and in other cases, the ratio of the white portion is insufficient. Or excessive. Then, the determination circuit 424 determines that the spray pattern is good if the ratio of the white portion is within a predetermined allowable range, and otherwise determines that the spray pattern is bad. When it is determined that the spray pattern is defective, the cup body 2 supplied to the gluing device 40 at that time is removed from the production line of the cup 1 by the rear NG product removal device.
[0043]
In addition, since the detection error occurs when the adhesive 4 or the cup body 2 attached to the nozzle 410 is included in the imaging range 420, it is desirable to set the imaging range 420 apart from both. The gluing device 40 is not provided with a mechanism for rotating the rotating cylinder 102 of the cup holder 100. After the cup holder 100 is conveyed from the processing device 30B to the gluing device 40, the rotating cylinder 102 is rotated by inertia for a while, and the inertia rotation is used to evenly bond to the entire circumference of the bonding range BD. This is because the agent 4 can be sprayed.
[0044]
As shown in FIG. 15, the sleeve supply device 50 includes a conveyor 51 that conveys the sleeve 3 while being inverted up and down, a pair of shutter mechanisms 52 and 52 provided at the end of the conveyor 51, and an extrusion mechanism 53. And have. The shutter mechanism 52 operates a pair of shutters 520 and 520, which are held so as to protrude on the carry-out port 510 at the end of the conveyor 51, in a direction perpendicular to the conveying direction of the conveyor 51 by the air cylinders 521 and 521, thereby discharging the outlet. 510 is opened and closed. The extrusion mechanism 53 includes an air cylinder 530 and a disk-shaped extrusion member 531 attached to the piston rod 530a. 15A is a cross-sectional view, and FIG. 15B is a plan view near the end of the conveyor 51. FIG.
[0045]
When the cup body 2 to which the adhesive 4 is applied by the gluing device 40 is conveyed to the position immediately below the carry-out port 510 by the rotation of the turntable 12, the shutters 520 and 520 are opened by the air cylinders 521 and 521, and the air cylinder 530 is activated and the pushing member 531 is driven downward. As a result, the sleeve 3 conveyed to the end of the conveyor 51 is pushed downward and falls so as to cover the outer periphery of the cup body 2 supported by the cup holder 100. After supplying the sleeve 3, the shutters 520 and 520 are instantaneously closed. The pushing member 531 does not move below the shutter 520. Therefore, there is no possibility that the pushing member 531 and the shutter 520 interfere with each other.
[0046]
FIG. 16 shows details of the sleeve aligning device 60. The sleeve aligning device 60 includes an aligning jig 61 disposed to face the thread tail 2g of the cup body 2 held on the cup holder 100, and an air cylinder 62 that drives the aligning jig 61 in the vertical direction. have. As shown in FIG. 17, the aligning jig 61 includes a cylindrical jig main body 610 having an open lower end, a guide shaft 611 attached to the center of the jig main body 610, and a hollow portion 610a of the jig main body 610. A disc-shaped centering member 612 that is slidable along the guide shaft 611 and a coil spring 613 that is attached to the outer periphery of the guide shaft 611 and presses the centering member 612 against the stopper 611a at the lower end of the guide shaft 611. And have. A flange 610 b is provided at the lower end of the jig body 610. On the outer periphery of the lower end of the centering member 612, a tapered centering surface 612a and a step portion 612b provided so as to surround the proximal end (upper end in the drawing) of the centering surface 612a are provided. An enlarged portion 611b is provided at the upper end of the guide shaft 611, and the enlarged portion 611b and the jig body 610 are fixed to the movable portion 620 (see FIG. 16) of the air cylinder 62.
[0047]
When the cup body 2 and the sleeve 3 are drawn out below the sleeve aligning device 60 by the rotation of the turntable 12, the air cylinder 62 is activated and the aligning jig 61 is driven downward. At this stage, as shown on the right side of the center line CL, the centering member 612 is pressed against the stopper 611a, and the outer circumferential centering surface 612a and the stepped portion 612b protrude below the flange 610b of the jig body 610. . Therefore, as shown by an imaginary line in FIG. 17, even if the sleeve 3 is covered with the center of the cup body 2 being shifted and the curled portion 3a is riding on the thread bottom 2g of the cup body 2, The centering surface 612a of the centering member 612 contacts the curled portion 3a, and the sleeve 3 is centered with the cup body 2.
[0048]
Thereafter, when the aligning jig 61 is further lowered, the stepped portion 612b abuts against the thread tail 2g of the cup body 2, and the centering member 612 is pushed into the jig body 610. Then, the flange 610b of the jig body 610 contacts the curled portion 3a of the sleeve 3, and the sleeve 3 is pushed into the curled portion 2c side of the cup body 2 by an appropriate amount. Thereby, the cup main body 2 and the sleeve 3 are reliably in contact with each other in the adhesion range BD, and both are correctly joined. When the centering jig 61 is lowered to a predetermined position, the centering jig 61 is pulled up to the original position in preparation for the next combination of the cup body 2 and the sleeve 3. Since the curled portion 3a of the sleeve 3 is positioned above the thread tail 2g of the cup body 2 (on the curled portion 2c side), the step is performed when the centering member 612 is pushed into the jig body 612 to the maximum extent. The part 612b recedes upward from the flange 610b.
[0049]
FIG. 18 shows details of the inspection apparatus 70. The inspection device 70 includes a rotation drive mechanism 71, a transmission type photosensor 72 for inspecting whether or not the sleeve 3 is correctly attached to the cup body 2, and whether or not the sleeve 3 is correctly assembled. And a laser distance sensor 73 for inspecting. The rotation drive mechanism 71 is the same as that of the processing apparatus 30A described above, and the drive wheel 711 driven to rotate by the motor 710 is brought into contact with the wheel 106 of the cup holder 100 to rotate the rotating cylinder 102 of the cup holder 100. Let
[0050]
The photo sensor 72 includes a pair of light emitting units 720 and a light receiving unit 721 that are arranged to face each other in the radial direction of the cup body 2. The light emitting unit 720 emits strip-shaped inspection light (hatched portion in the drawing) having a predetermined width toward the thread tail 2g of the cup body 2. The light receiving unit 721 outputs a signal corresponding to the amount of inspection light received to the determination device 74. If the alignment of the sleeve 3 by the above-described aligning device 60 fails, the sleeve 3 protrudes beyond the yarn bottom 2g, and the inspection light from the light emitting unit 720 is blocked more than when normal. Therefore, the determination device 74 monitors the change in the amount of received light of the inspection light based on the signal from the light receiving unit 721. Display the results.
[0051]
Further, the laser distance measuring sensor 73 emits a laser beam narrowed toward the outer periphery of the sleeve 3 and outputs a signal corresponding to a time lag until the reflected light is detected. If the sleeve 3 is not formed in a predetermined taper shape due to failure of bonding of the blank 3 ′ or the like, the outer periphery is distorted. Therefore, the time until the laser beam rebounds increases with the rotation of the sleeve 3. It will fluctuate. Therefore, the determination device 74 monitors a change in time until the reflection of the laser beam is detected. If the change is larger than a predetermined allowable range, the determination device 74 determines that the sleeve 3 is poorly formed and displays the result on the monitor 75. indicate.
[0052]
When the inspection device 70 determines that the assembly or molding of the sleeve 3 is defective, the cup 1 supplied to the inspection device 70 at that time is removed from the production line of the cup 1 by the rear NG product removal device.
[0053]
19 and 20 show details of the discharge device 80. FIG. The discharge device 80 includes a gear box 81 and a magazine 82 that can rotate around an output shaft 810 of the gear box 81. A pot 820 having a tapered hole 820a into which the cup 1 can be fitted is attached to the magazine 82 at intervals of 90 ° in the rotation direction of the magazine 82. A sprocket 812 is attached to the input shaft 811 of the gear box 81. The sprocket 812 is connected to the drive mechanism 13 of the turntable 12 through a transmission mechanism 84 combined with a chain 840 and the like (see FIGS. 5 and 6). When the turntable 12 is rotated 30 °, the turntable 12 is rotated so that the magazine 82 is rotated 90 ° in the direction of arrow R in FIG. 19 and the empty pot 820 is drawn out directly above the cup holder 100. The rotation of the magazine 82 is associated with the rotation.
[0054]
Immediately below the pot 820 is an air supply device (not shown) that is connected to the lower end opening of the air flow path provided on the center line of the support shaft 101 of the cup holder 100 and supplies compressed air to the air flow path. Is provided. The compressed air supplied into the support shaft 101 blows out from the upper end of the support shaft 101 and feeds the cup 1 into the tapered hole 820a of the pot 820 fed upward. As a result, the cup 1 is transferred from the cup holder 100 to the pot 820.
[0055]
The cup 1 held in the pot 820 is sent to the cup accumulating device 85 by the magazine 82 rotating three times by 90 °. The cup accumulating device 85 extracts the cup 1 from the pot 820 and accumulates it in the magazine 853 by operating the claw 850 engaged with the curled portion 2 c of the cup 1 in the horizontal direction by the actuator 851.
[0056]
As shown in FIG. 19, an inner surface inspection device 90 for the cup 1 is provided at a position on the opposite side of the magazine 82 from the cup accumulating device 85 of the magazine 82. The inner surface inspection device 90 shoots the image with the camera 92 while irradiating the inner surface of the cup 1 held in the pot 820 with the ring-shaped illumination lamp 91, and the image data output from the camera 92 is image processing device 93. Then, a predetermined process is performed to inspect the inner surface of the cup 1 for dirt and shape defects.
[0057]
The present invention is not limited to the embodiments described above, and may be implemented in various forms. For example, the rib machining mechanism 32 and the curl machining mechanism 34 may be provided at different stations. The inspection devices 42 and 70 may be omitted.
[0058]
【The invention's effect】
As explained above, according to the manufacturing apparatus of the present invention, The In the case where the leave aligning device is provided, it is possible to improve the yield when manufacturing the heat insulating container by eliminating the combination failure due to the misalignment between the sleeve and the container main body.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a paper cup as an insulated container manufactured according to the present invention.
FIG. 2 is a diagram showing an outline of a manufacturing procedure of the paper cup of FIG.
3 is an enlarged cross-sectional view of a curled portion of a cup body that constitutes the paper cup of FIG. 1. FIG.
4 is a plan view of the paper cup manufacturing apparatus of FIG. 1; FIG.
5 is a side view of the device from the direction of arrow V in FIG. 4;
6 is a side view of the device from the direction of arrow VI in FIG. 5. FIG.
7 is a cross-sectional view of a cup supply device provided in the apparatus of FIG. 4;
8 is a plan view of the cup supply device of FIG. 7;
FIG. 9 is a view showing a main part of a processing apparatus provided in the apparatus of FIG.
10 is a rear view from the direction of arrow X in FIG. 9;
11 is a view showing a state in which a rib is processed on the side wall of the cup body by the apparatus of FIG. 9;
12 is a view showing a state in which the curled portion of the cup body is processed by the processing apparatus of FIG. 9;
FIG. 13 is a diagram showing an example of processing a curled portion of a cup body using a plurality of press rollers.
14 is a view showing a main part of a gluing device provided in the apparatus of FIG. 4;
15 is a view showing a main part of a sleeve supply device provided in the apparatus of FIG. 4;
16 is a diagram showing an entire sleeve aligning device provided in the apparatus of FIG. 4;
17 is a view showing a main part of the apparatus shown in FIG.
18 is a diagram showing a configuration of an inspection apparatus provided in the apparatus of FIG.
19 is a diagram showing a configuration of a discharge device provided in the apparatus of FIG. 4;
20 is a side view of the discharging device from the direction of arrow XX in FIG. 19;
[Explanation of symbols]
1 Paper cup (insulated container)
2 cup body
2a side wall
2c curl
2d, 2e rib
3 Sleeve
4 Adhesive
10 Manufacturing equipment
11 frames
12 Turntable (transport device)
13 Drive mechanism (conveyance device)
20 cup feeder
30A, 30B processing equipment
31 Rotation drive mechanism (rotation drive means)
32 Rib processing mechanism (rib processing device)
33 Retaining mechanism
34 Curling part machining mechanism (curling machine)
40 Gluing device
41 spray gun
42 Inspection equipment
50 Sleeve supply device
60 Sleeve alignment device
61 Alignment jig
62 Air cylinder (jig driving means)
70 Inspection equipment (combination inspection equipment, sleeve inspection equipment)
71 Rotation drive mechanism
72 Photosensor (height information detection means)
73 Laser ranging sensor (distance information detecting means)
74 Determination device (determination means, molding determination means)
75 monitors
80 Discharge device
90 Inner surface inspection equipment
100 cup holder (container holder)
102 Rotating cylinder (Rotating body)
610 Jig body
610b Flange (Pushing part)
612 Centering material
612a Centering surface

Claims (1)

A manufacturing apparatus for manufacturing a heat insulating container by combining a sleeve on the outer periphery of a container body,
  A container holder for holding the container body in an inverted state;
  A sleeve supply device that covers the sleeve from above the container body on the outer periphery of the container body held by the container holder;
  A sleeve aligning device that pushes the sleeve over the container body toward the container body;
  The sleeve aligning device comprises an aligning jig facing the upper end of the sleeve placed on the container body, and a jig driving means for driving the aligning jig toward the container holder,
  The aligning jig is engaged with the sleeve prior to the pushing of the sleeve by the pushing portion, the jig main body having a pushing portion capable of coming into contact with the upper end portion of the sleeve, and the sleeve is connected to the container. A centering member that is displaced in the radial direction so that the body and the core are aligned,
The centering member is provided coaxially with the jig body and movable in the pushing direction of the sleeve, and the outer periphery of the end of the centering member facing the sleeve is closer to the sleeve. An apparatus for manufacturing a heat insulating container, characterized in that a centering surface having a reduced diameter is provided.

Images