JP2003131345A - Method of manufacturing barrel plate of cartridge and apparatus for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of manufacturing the barrel plate of a cartridge which is capable of downsizing facilities and an apparatus for the same. SOLUTION: This apparatus 10 for manufacturing the barrel plate of the cartridge comprises a sheet feeding station 18, a corner cutting station 22, a small diameter bending and folding station 22, and both end bending station 24 in the working section 11 of the preceding stage for forming a metal sheet 30 to a cymbiform. Namely, the apparatus 10 for manufacturing comprises integrating the small diameter bending station and the folding station which are heretofore separately installed to constitute the small diameter bending and folding station 22, thereby downsizing the facilities.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for manufacturing a patrone body plate for storing a photographic roll film.

[0002]

2. Description of the Related Art A cartridge containing a photographic roll film comprises a tubular body plate, a spool housed in the body plate, a photographic roll film, and caps for closing openings at both ends of the body plate. Composed. In addition, a velvet ribbon for light shielding called a teremp is attached to the inner surface of the film outlet of the body plate.

In order to manufacture a Patrone body plate, first, a thin metal plate that is cut so that the vertical and horizontal dimensions are the same as the developed vertical and horizontal dimensions of the Patrone body plate is processed into a substantially boat-shaped cross section, and then,
A velvet ribbon is attached to both left and right ends of a thin boat-shaped metal plate. In this case, while transporting a plurality of thin metal plates in a state where the front end and the rear end are substantially in contact with each other and continuously carrying them, two long velvet ribbons coated with an adhesive are continuously connected to the left and right ends of the thin metal plate, respectively. Stick it on. Then, the velvet ribbon between the adjacent thin metal plates is cut with a cutter. As a result, the Patrone body plate is manufactured.

Then, the shell plate of the cartridge is bent into a substantially cylindrical shape so that the velvet ribbons overlap each other, and a cap is caulked at one of the opening ends to form a cartridge with one opening. Next, the winding body in which the fixed-size film is wound on the spool is inserted, and finally, the cap is caulked on the other opening of the one-sided cartridge. As a result, the patrone containing the photographic roll film is completed.

As shown in FIG. 22, the Patrone body plate manufacturing apparatus disclosed in Japanese Examined Patent Publication No. 53257/1993 has a sheet feeding station 1, a corner cutting station 2, a small diameter bending station 3, a goby bending station 4, The both-end bending station 5, the thin plate transport rails 6 and 6 arranged below the respective stations 1 to 5 and connecting the stations 1 to 5, and between these rails 6 and 6, an arrow A shown in FIG. The feed lever 7 is configured to intermittently reciprocate in the direction.

FIG. 23 shows the thin plate supply station 1.
A large number of metal thin plates 8 having the same vertical and horizontal dimensions as shown in (a) are the same as the developed vertical and horizontal dimensions of the cartridge shell. The thin metal plates 8 are conveyed one by one from the thin plate supply station 1 to the corner cutting station 2 by the intermittent movement of the feed lever 7 in FIG. Metal sheet 8 at corner cutting station 2
The four corners are cut into a predetermined shape as shown in FIG. Next, the metal sheet 8 is attached to the corner cutting station 2
From the small diameter bending station 3, the small diameter bending stations 3 press-form small-diameter bent portions R and R at two corners of one end of the thin metal plate 8 as shown in FIG. The bent portion R is for bending the thin metal plate 8 into a cylindrical shape to facilitate the fitting when the cap of the cartridge is fitted.

Next, the metal thin plate 8 is conveyed to the goby bending station 4, where the goby bent portion 8a is press-formed at the other end of the metal thin plate 7 as shown in FIG. 23 (d).
After that, the thin metal plate 8 is conveyed to the both-end bending station 5, where the both ends of the thin metal plate 7 are bent and formed to have a predetermined curvature as shown in FIG.
The Patrone body plate is manufactured by the above procedure.

[0008]

However, in the conventional apparatus for manufacturing a patrone shell plate, the sheet feeding station 1, the corner cutting station 2, the small diameter bending station 3, the goby bending station 4, and the both end bending station 5 are used.
Are separately arranged in parallel along the transport direction of the thin metal plates, there is a drawback that the transport line becomes long and the equipment becomes large.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method and an apparatus for manufacturing a Patrone body plate in which the equipment is downsized.

[0010]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a means for conveying a thin metal plate cut from a thin plate supply station so that the vertical and horizontal dimensions are the same as the developed vertical and horizontal dimensions of the cartridge plate. Are sequentially conveyed by the conveying means, and at the corner cutting station arranged on the conveying path by the conveying means, the four corners of the thin metal plate are cut into predetermined shapes,
A small-diameter bending station and a goby bending station installed on the downstream side of the conveying path of the corner cutting station position and fix the metal thin plate, and then the small-diameter bent portion and the metal thin plate are formed at two corners of one end of the metal thin plate. Bending the goby bending part at the other end at the same time, and bending the thin metal plate into a predetermined shape with a substantially boat-shaped cross section at a double-end bending station installed on the downstream side of the conveying path of the small diameter bending station and the goby bending station. Is characterized by.

In order to achieve the above-mentioned object, a thin plate supply station in which a metal thin plate having the same vertical and horizontal dimensions as the developed vertical and horizontal dimensions of the Patrone body plate is stored, and the metal thin plates are sequentially taken out from the thin plate supply station and conveyed. And a corner cutting station, which is arranged in the transportation path by the transportation means and has cutting portions for cutting four corners of the thin metal plate into a predetermined shape, and a downstream of the corner cutting station in the transportation path. And a pressing portion for positioning and fixing the thin metal plate, and a small-diameter bend forming portion for bending a small-diameter bending portion at two corners of one end of the thin metal plate positioned and fixed by the holding portion, A small-diameter bending station that also has a goby bending forming part that bends the goby bending part at the other end of the thin metal plate at the same time as bending by the small-diameter bending forming part And a double-end bending station which is installed on the downstream side of the conveying path of the small-diameter bending station and the goby bending station, and which has a processing part for bending the thin metal plate into a predetermined shape having a substantially boat-shaped cross section. Characterize.

The present invention has realized the miniaturization of equipment by paying attention to the fact that it is possible to integrate a small-diameter bending station and a goby bending station, which were conventionally installed independently. That is, the small-diameter bending station is a station that processes one end of the thin metal plate with the thin metal plate positioned, and the goby bending station also processes the other end of the thin metal plate with the thin metal plate also positioned. It is a station. In short, even if the small-diameter bending station and the goby bending station are integrated, since each station processes different parts of the thin metal plate, the devices of each station do not interfere with each other and there is no hindrance to integration. . Further, since the small-diameter bending and the goby bending are simultaneously performed in one positioning, the processing accuracy is also improved.

On the other hand, the corner cutting station is
Since it is a station that cuts the four corners of a thin metal plate into a predetermined shape, it is difficult to integrate it with the small-diameter bending station of the next station because of the interference between the devices. Further, since the both-end bending station is a station for bending both ends of the thin metal plate, it is difficult to integrate the both-end bending station and the goby bending station due to the interference between the devices.

Therefore, according to the present invention in which the small-diameter bending station and the goby bending station are integrated, not only the equipment is downsized, but also the small-diameter bending and the goby bending are performed at the same time by one positioning, so that the processing accuracy is improved. Is improved and production efficiency is also improved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a method and apparatus for manufacturing a patrone body plate according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic plan view of a manufacturing apparatus 10 for a cartridge plate, FIG. 2 is a schematic front view of the manufacturing apparatus 10 shown in FIG. 1, and FIG. 3 is a schematic right side of the manufacturing apparatus 10 shown in FIG. The side view is shown. The manufacturing apparatus 10 includes a pre-stage processing unit 11 for cutting and bending a thin metal plate, a velvet ribbon sticking / cutting apparatus 14 and an OK / NG sorting / collecting apparatus 1.
6 and a post-stage processing section 12 having

The pre-stage processing section 11 is composed of a thin plate supply station 18, a corner cutting station 20, a small diameter bending station and a goby bending station 22, and a double-end bending station 24. In addition, each station 18-
Below the 24, a pair of thin plate transport rails 2 shown in FIG.
6 and 26 are provided, and between these rails 26, there is provided a feed bar 28 that intermittently reciprocates in the direction of arrow A in FIG. The thin metal plate 30 serving as a cartridge plate is intermittently conveyed by the feed bar 28 at a constant feed pitch and sequentially supplied to each of the stations 18 to 24.

In the embodiment, the feed pitch of the feed bar 28 is 90 mm, and the distance between the sheet feeding station 18 and the corner cutting station 20 is set to 270 mm including the two intermediate stations. Also,
The space between the corner cutting station 20 and the small diameter bending station / goby bending station 22 is set to 180 mm including one intermediate station. Furthermore, small diameter bending station and goby bending station 22
The space between the double-sided bending station 24 and the both-end bending station 24 is set to 180 mm including one intermediate station.
Note that the distance between these stations is not limited to the above size. The feed pitch amount and the number of intermediate stations depend on the degree of freedom of arrangement of each station 18-24,
And the speed at which the metal thin plate 30 can be stably fed.

The feed bar 28 has a claw 32 shown in FIGS.
The pawl 32 is biased by a spring 34 and protrudes upward by a predetermined amount from the upper surface 28a of the feed bar 28. A plurality of claws 32 are provided at the same pitch as the feed pitch. Specifically, the claws 32 are provided in the same number as all the stations 18 to 24 including the intermediate stations.

A rack 36 shown in FIG. 2 is installed in the thin plate supply station 18, and a large number of metal thin plates 30, 30 ... Are vertically stacked and stored in the rack 36. These metal thin plates 30, 30, ... Are adsorbed by the air suction cup 38 shown by the chain double-dashed line in FIG. 6 and supplied onto the feed bar 28 one by one. When the thin metal plate 30 is supplied in this manner, the feed bar 28 is stopped at the leftmost position in FIG. 6, and the thin metal plate 30 is supplied to the front side (right side in FIG. 5) of the claw 32 located on the leftmost side. It Thus the feed bar 2
The metal thin plate 30 supplied on 8 is formed in a rectangular shape,
The vertical and horizontal dimensions are made equal to the developed vertical and horizontal dimensions of the Patrone body plate. 6 and 7 show the drive mechanism 13 of the pre-stage processing section 11, which will be described later.

Feeding bar 2 from thin plate feeding station 18
When the thin metal plate 30 is supplied to 8, the feed bar 28 is moved forward by the attachment pitch of the claw 32. As a result, the metal thin plate 30 supplied to the front side of the leftmost claw 32 is pushed by the claws 32 on the rails 26, 26 to move forward, and stops at a predetermined position of the intermediate station. By repeating this, the thin metal plate 30 stops at a predetermined position in the corner cutting station 20 via the plurality of intermediate stations.

When this operation is continuously carried out, the metal sheet 30 supplied from the sheet supply station 18 is conveyed to the corner cutting station 20, and the metal sheet 30 in the corner cutting station 20 has a small diameter. It is conveyed to the bending station and the goby bending station 22, and then the small diameter bending station and the goby bending station 22.
The thin metal plate 30 inside is guided to the rails 26, 26 and conveyed to the both-end bending station 24. Then, the metal thin plate 30 that was inside the both-end bending station 24
Is supplied to the bucket conveyor 42 of the velvet ribbon sticking / cutting device 14 shown in FIG.

As shown in FIG. 5, the upper surface 32A of each claw 32 biased by the spring 34 of the feed bar 28 is an inclined surface. Therefore, the feed bar 28 is attached to the thin metal plate 3.
When returning to the original position after sending 0 to the next station, that is, when returning to the left side in FIG. 5, each claw 32 passes through each station 18 to 24, and the metal thin plate at that station 18 to 24 is passed. It hits the lower surface of 30 and sinks downward. Therefore, the thin metal plates 30 set in the stations 18 to 24 are not returned by the returning operation of the feed bar 28.

The corner cutting station 20 is a press device (corresponding to a cutting part) consisting of an upper die and a lower die, and FIG.
By cutting the four corners of the rectangular metal thin plate 30 shown in (a), the metal thin plate 30 is processed into a shape in which the four corners 30A are cut out as shown in FIG. 9 (b). When the corner cutting station 20 operates, the small-diameter bending station / goby bending station 22 and the both-end bending station 24 also operate at the same time.

The small-diameter bending station / goby bending station 22 is composed of a plurality of press devices. First, the small-diameter bending press (corresponding to the small-diameter bending forming portion) is shown in FIG.
As shown in (c), small-diameter bent portions R are formed at two corners on the one end portion 30B side of the cutout portion of the metal thin plate 30. The bent portion R is the final step of manufacturing the cartridge plate, and when the metal thin plate 30 is bent into a cylindrical shape as shown in FIG.
This is for facilitating fitting to 0. On the other hand, the goby bending press (corresponding to the goby bending forming portion) is as shown in FIG.
The other end 30C of the thin metal plate 30 is subjected to goby bending.

After that, the thin metal plate 30 is transferred to the pressing device (corresponding to a working part) of the both-end bending station 24 as shown in FIG.
As shown in (d), both ends 30C and 30B are bent to have a predetermined curvature. In FIG. 4, a lower mold 38 and an upper mold 40 that move up and down are installed at the double-end bending station 24. Then, finally, the thin metal plate 30 in the both-end bending station 24 is sent to the bucket conveyor 42 shown in FIG. The above is the structure of the pre-processing section 11.

The velvet ribbon attaching / cutting device 14 of the post-stage processing section 12 will be described below.

FIG. 8 shows a connecting portion between the feed bar 28 and the bucket conveyor 42. The bucket conveyor 42 includes a pair of sprockets 44, 4 as shown in FIG.
4, the sprocket 44, 44 is rotated in the clockwise direction in FIG.

A recess 47 is formed on the mounting surface of each bucket 46 of the bucket conveyor 42 shown in FIG. The thin metal plate 30 moves from the feed bar 28 to the recess 4 of the bucket 46.
7 is transferred to the image recognition device from below or diagonally below the bucket conveyor 42.
The contents printed on the lower surface of the thin metal plate 30 are read by a D camera or a bar code reader, and it is inspected whether the printing is suitable for a preset type. In the case of printing different from the set product type, an alarm is issued to the operator and the product is discharged as a defective product on the downstream side. Further, the shape of the passing metal thin plate 30 is inspected by an optical non-contact sensor, and it is confirmed whether or not the metal thin plate 30 is normally molded. In the case of abnormality, it is similarly discharged as a defective product on the downstream side.

In the case of abnormality, a warning is given to the operator and the NG metal thin plate 30 is discharged to the NG chute 48 shown in FIG. Further, as another means, when the NG is continuously generated a certain number of times or more, the manufacturing apparatus 10 is stopped and the operator's treatment is waited. This is to satisfy both the requirements of not lowering the operating rate of the equipment and of not continuously producing a large number of defective products. In FIG. 3, reference numeral 50 is an OK chute for accumulating non-defective products.

As shown in FIG. 8, bucket claws 52 project from the left and right ends of the thin plate mounting surface of each bucket 46. The feed bar 28 transfers the thin metal plate 30 formed in the substantially boat shape shown in FIG. 9D to a position where it does not hit the bucket claw 52 of the bucket 46 and returns to the original position.
This thin metal plate 30 is a bucket claw 52 of the next bucket 46.
It is pushed forward by and is consequently pushed against the bucket claws 52 of the bucket 46 on which it is placed. In this manner, the metal thin plates 30, 30 ... Are placed on the bucket conveyor 42 with no gap or with a small gap, and these metal thin plates 30, 30 ... Are continuously conveyed.

On the other hand, the two long velvet ribbons 54, 54 shown in FIG. 2 are coated with an adhesive on their back surfaces in advance and cut into a predetermined width in a separate step, and then the reels 56, 56. And is attached to the main body of the manufacturing apparatus 10. Velvet ribbon 5 wound on reels 56, 56
The tension rollers 58, 58 keep the tensions of the rollers 4, 54 constant, and the feeding rollers 60, 6
Pulled out by 0. Immediately in front of the velvet ribbon attaching / cutting device 14, the pulled-out velvet ribbons 54, 54 are regulated in position in a direction orthogonal to the traveling direction by a collar roller (not shown) and a collar guide (not shown). To be done. In the velvet ribbon attaching / cutting device 14, the tip portion of the velvet ribbon 54 is shown in FIG.
While being pulled out in the direction of the up arrow D, the metal thin plate 30 is pressure-bonded to one end 30B and the other end 30C.

The velvet ribbons 54, 54 are contactless by optical means immediately before being supplied to the velvet ribbon sticking / cutting device 14 without contact.
Is the velvet ribbon 54, 54 turned upside down?
The velvet ribbons 54, 54 are inspected for any double-bonded portion on the velvet ribbons 54, 54.

On the other hand, the metal thin plate 30 is continuously conveyed by the bucket conveyor 42 in a state where one end 30B and the other end 30C thereof are aligned with each other, and is installed upstream of the bucket conveyor 42 in FIG. By passing through the high-frequency heating device 62 shown in FIG.
And are heated and sent to the pressurizing unit 64. Pressure unit 64
11, the adhesive coating surface of each velvet ribbon 54, 54 faces downward, and the pair of rollers 66, 66 shown in FIG.
B, the other end 30C of the velvet ribbon 54 and the thin metal plate 30
And are pinched. As a result, the velvet ribbons 54, 54 are attached to the one end 30B and the other end 30C of the heated metal thin plate 30, respectively.

Before and after the pressing portion 64, the temperature of the metal thin plate 30 and the amount of the velvet ribbon 54 protruding from the metal thin plate 30 are detected by non-contact measuring means. A radiation thermometer and a laser displacement meter are used as the measuring means here. If data that exceeds the preset upper and lower limits is obtained, the metal thin plate 30 is determined to be a defective product and is discharged to the NG chute 48 shown in FIG.

In FIG. 11, the long velvet ribbons 54, 54 attached to the metal thin plate 30 move together with the metal thin plate 30 conveyed by the bucket conveyor 42. Therefore, the thin metal plates 30, 30 ...
The velvet ribbons 54, 54 are connected to each other and fed to the cooling unit 68 (see FIG. 1).

An air pipe is arranged in the cooling section 68 in the direction of transporting the thin metal plate 30, and a large number of small holes are opened in the air pipe. Compressed air is blown from the small holes to the thin metal plate 30 and the velvet ribbon 54 to cool the entire thin metal plate 30. Then, the metal sheet 30 is cooled to a temperature at which the ribbon cutting unit 70 can cut the ribbon in the downstream process, and the thin metal plate 30 is sent to the ribbon cutting unit 70.

As shown in FIG. 1, the ribbon cutting unit 70 comprises a ribbon cutting mechanism 72 arranged on the one end 30B side of the metal thin plate 30 and a ribbon cutting mechanism 74 arranged on the other end 30C side. Both the mechanisms 72 and 74 are provided at symmetrical positions with respect to the transport path of the bucket conveyor 42 and have the same structure. Therefore, one ribbon cutting mechanism 7 will be described below.
Taking 2 as an example, the cutting of the velvet ribbon 54 will be described.

The ribbon cutting mechanism 72 has, for example, four cutters (not shown). At the lateral position of the metal thin plate 30, each cutter moves at the same speed in the same direction as the metal thin plate 30. The ribbon cutting mechanism 72 uses the thin metal plate 30.
In the lateral direction, the workpiece holding member moves in synchronization with the thin metal plate 30, and the work holding member holds down the velvet ribbon 54 from above during this movement. After this, four cutters enter the gap between the metal thin plate 30 and the adjacent metal thin plate 30, and cut the velvet ribbon 54. As a result, the velvet ribbon 54
The metal thin plates 30, 30 ... Connected with each other are separated for each metal thin plate 30. Then, the metal thin plate 3 having the short velvet ribbons 54, 54 attached to both ends 30B, 30C thereof
0 is conveyed one by one from the bucket conveyor 42 to the OK / NG sorting and accumulating device 16.

The OK / NG sorting / collecting device 16 is mainly composed of
It consists of a magnet conveyor 76. The magnet conveyor 76 is composed of a conveyor main body 77 and a plurality of electromagnets and permanent magnets 78, 78 ... Arranged along the circulating movement direction of the conveyor main body 77. The metal thin plate 30 conveyed by the bucket conveyor 42 is the main body 7 of the conveyor.
It is picked up from the bucket conveyor 42 by being attracted by the permanent magnets 78, 78 via 7. Then, the metal thin plate 30 has a permanent magnet and electromagnets 78, 78.
The sheets are conveyed one by one downstream while being adsorbed by.

During this conveyance, a plurality of electromagnets 78, 78 ... Are driven by a control signal from a control device (not shown) that has tracked the signal based on the quality information generated as a result of the inspection so far. Good / defective products are sorted by ON / OFF control. That is, the electromagnet 78 provided at the position of the NG chute 48 is de-energized by the control device when a defective product arrives at that position. As a result, the defective product is dropped onto the NG chute 48.

The reason why the inspections so far are determined to be NG is that when the temperature of the thin metal plate 30 immediately before entering the pressurizing portion 64 is outside the temperature range in which good adhesion can be obtained.
If the amount of protrusion of the attached velvet ribbon 54 from the metal thin plate 30 due to misalignment with the metal thin plate 30 is outside the range where good light-shielding performance is obtained, the velvet ribbon 54 is turned upside down. That the velvet ribbon 54 adheres itself to form a doubled portion, or if it is detected that there is no adhesive that should have been applied to the velvet ribbon 54, When it is detected that the thin plate 30 deviates from the correct shape, the printing of the metal thin plate 30 may be different from the set printing.

On the other hand, when the non-defective product is conveyed to a position where the electromagnet 78 is not provided downstream, the attractive force of the magnet conveyor 76 is lost, so that the OK chute 50 shown in FIG.
Then, it is dropped with the goby side (the end portion 30C side) facing downward. O
The K chute 50 is inclined at a predetermined angle, and its width is made substantially the same as the width of the thin metal plate 30. Thin metal plate 30
Slides down the OK chute 50 with the goby side down, but the lower end 51 of the OK chute 50 is shown in FIG.
Since it is formed horizontally as shown in (b), when the goby portion of the thin metal plate 30 that has slid down as shown in FIG. The thin metal plate 30 in a posture is erected by a mechanical action, and as a result, it is accumulated in the horizontal portion 51 in a erected posture with the goby portion downward. The inclination angle of the OK chute 50 which brings about such an action is in the range of 20 ° to 45 °, and preferably 30 °.
It is set in the range of ° to 35 ° according to the production speed.

Metal thin plate 3 integrated on OK chute 50
In the next step, 0 is bent into a cylindrical shape and manufactured into a patrone body plate.

In the manufacturing apparatus 10 of the embodiment, the power mechanism 88 shown in FIGS. 13 and 14 is installed below the rear stage processing section 12 shown in FIGS. 1 and 2, and the control is provided behind the rear stage processing section 12. A board 80 (see FIG. 1) is installed. Further, an operation panel 82 (see FIG. 1) is installed on the front surface of the post-stage processing section 12 to perform operation stop operation and various manufacturing condition settings. Further, the content of the abnormality detection is displayed here.

The power mechanism 88 shown in FIGS. 13 and 14 includes a bucket conveyor 42 and ribbon cutting mechanisms 72 and 74 (see FIG. 1).
And each station 18-2 of the pre-stage processing section 11
4 (see FIG. 1).

13 and 14, the power mechanism 88
Has an AC servo motor 90, and the AC servo motor 9
The rotational force is transmitted from 0 to the main shaft 96 by the timing belt 94 via the clutch brake 92. On the right side of the main shaft 96, the torque limiter 9
8, speed reducer 100, and timing belt 10 in FIG.
2 is connected to the sprocket 44 of the bucket conveyor 42 via 2 so that power can be transmitted. As a result, the bucket conveyor 42 is driven by the power from the AC servomotor 90.

The main shaft 96 has a timing belt 104 and a gear box 10 as shown in FIG.
6, the timing belt 108 and the speed reducer 110 are coupled to the index unit 112 and the cam mechanism 114 so that power can be transmitted. The index unit 112 and the cam mechanism 114 are the ribbon cutting mechanisms 72, 7
4, and therefore the index unit 112 and the cam mechanism 114 are driven by the AC servomotor 90.

On the other hand, on the left side of the main shaft 96, power can be transmitted to the drive mechanism 13 of the pre-stage processing section 11 shown in FIGS. 6 and 7 through the gear box 116, the torque limiter 118, and the timing belt 120. Are linked to. It should be noted that the torque limiters 98 and 118 shown in FIG.
It was installed to protect the.

The drive mechanism 13 of the pre-stage processing section 11 shown in FIGS. 6 and 7 uses the power of the AC servomotor 90 for the thin plate supply station 18, the corner cutting station 20, the small diameter bending station / the goby bending station 22, and the both-end bending station. 24 and the feed bar 28,
Each is operated at a predetermined timing. Also. The drive mechanism 13 of the embodiment has a simple structure of the eccentric cams (eccentric cams) 122, 1 in order to set the operation timing.
24, 126, 128, 130, 132, 134 are used.

The drive mechanism 13 has a shaft 136 rotated by the timing belt 120 as shown in FIG.
A timing belt 142 is stretched between a pulley 138 provided on the shaft 136 and a feed bar driving pulley 140 shown in FIG.

As shown in FIG. 6, an end portion 144A of a link 144 is rotatably supported by the drive pulley 140 of the feed bar 28 at a position eccentric with respect to the rotation shaft 141 of the pulley 140, and the link is also rotatably supported. The other end 14 of 144
4B is rotatably supported on the side of the feed bar 28. With this configuration, the driving force of the timing belt 120 is transmitted to the link 144 via the shaft 136, the timing belt 142, and the feed bar driving pulley 140, and the link 144 reciprocates in the left-right direction in FIG. As a result, the feed bar 28 reciprocates at the above-mentioned feed pitch.

On the other hand, the shaft 136 shown in FIG. 7 is connected to the main shaft 148 of the pre-stage processing section 11 via a drive branch gearbox 146 containing a bevel gear. The main shaft 148 is provided with exen cams 122 to 128 for moving the air suction cup 38 and the upper molds 21, 23, 40 at the four stations 18, 20, 22, 24.

A pulley 150 is connected to the right end of the main shaft 148 in FIG.
Is connected to a pulley 156 connected to a goby bending shaft 154 via a timing belt 152. As shown in FIG. 6, this shaft 154 is provided with exen cams 130, 132, and 134 for a goby bending operation.

A rod 162 is connected to the eccentric cam 122 shown in FIG. 6 via a bearing 160.
The rod 162 is movably supported by a guide member (not shown), and an air suction cup 38 shown by a chain double-dashed line is attached to the upper end of the rod 162. Therefore, when the main shaft 148 rotates, the rod 162 moves up and down by the eccentric rotation action of the exen cam 122. By the upward movement of the rod 162 at this time, the lowest metal thin plates 30 accumulated on the rack 36 are adsorbed one by one by the air suction cup 38, and by the downward movement of the rod 162, the metal thin plates 30 are moved by the feed bar 28. Passed on. A groove or opening for allowing the air suction cup 38 to pass is formed at the left end of the feed bar 28 in FIG.

In FIG. 6 and FIG. 7, a rod 166 is connected to the eccentric cam 124 via a bearing 164. The rod 166 is supported by a guide member (not shown) so as to be able to move up and down, and at its upper end portion, an upper die 21 that constitutes a pressing device of the corner cutting station 20.
Is provided. Therefore, the main shaft 148
When is rotated, the rod 166 is moved up and down by the eccentric rotation action of the eccentric cam 124. Rod 16 at this time
At the timing of the ascending movement of 6, the thin metal plate 3 on the upstream side
0 is conveyed to the corner cutting station 20 by moving the feed pitch of the feed bar 28. Then, as the rod 166 moves downward, the corner portion 30A of the metal thin plate 30 is cut by the upper mold 21 (see FIG. 9B).

The eccentric cam 126 has a bearing 12
7 (see FIG. 7) is connected to the rod 168. The rod 168 is supported by a guide arm 169 shown in FIGS. 15 and 16 so as to be able to move up and down, and an upper die 23 that constitutes a small-diameter bending press device of the small-diameter bending station and the goby bending station 22 is provided at the upper end portion thereof. It is provided. Therefore, when the main shaft 148 rotates, the rod 168 moves up and down by the eccentric rotation action of the eccentric cam 126. Rod 168 at this time
At the timing of the upward movement of the metal thin plate 30 on the upstream side
Is conveyed to the lower die 23A of the small-diameter bending station / goby bending station 22 by the feed pitch movement of the feed bar 28. Then, when the rod 168 moves downward, the upper die 23 descends toward the thin metal plate 30, and the bent portion R is formed in the thin metal plate 30 (see FIG. 9C).

A rod 170 and a rod 172 are connected to the eccentric cam 128 shown in FIG. 7 via a bearing 129. The rod 172 is supported by a guide member (not shown) so as to be able to move up and down, and an upper die 40 that constitutes a press device of the both-end bending station 24 is provided at the upper end portion thereof. Therefore, when the main shaft 148 rotates, the rod 172 moves up and down by the eccentric rotation action of the exen cam 128. At the timing of the ascending movement of the rod 172 at this time, the metal sheet 30 on the upstream side is conveyed to the both-end bending station 24 by the feed pitch movement of the feed bar 28. And rod 1
By the downward movement of 72, both ends 30B of the thin metal plate 30,
30C is bent and formed to have a predetermined curvature (see FIG. 9D).

Next, the goby bending exen cams 130, 13 attached to the goby bending shaft 154 of FIG.
2, 134 will be described.

The bearing 17 is attached to the exen cam 130.
The rod 176 shown in FIG. The upper end of the rod 176 is the lower mold 2 shown in FIG.
It is rotatably supported via a pin 182 on the left end of a work pressing arm 180 which is swingably supported by a pin 178 near 3A. A pressing portion 181 is formed at the right end of the work pressing arm 180, and the pressing portion 181 is
The metal thin plate 30 placed on the lower mold 23A is pressed and positioned on the lower mold 23A.

Therefore, when the shaft 154 rotates, the rod 176 moves up and down by the eccentric rotation action of the eccentric cam 130. By the downward movement of the rod 176 at this time, the work holding arm 180 swings counterclockwise in FIG. 15 about the pin 178, and the work holding portion 181 is pressed.
Is retracted above the lower mold 23A, and the thin metal plate 30 on the upstream side is conveyed to the small-diameter bending station / goby bending station 22 by the feed pitch movement of the feed bar 28. Then, as the rod 176 moves upward, the work holding arm 180 swings clockwise around the pin 178 in FIG. 15, and the holding portion 181 holds the thin metal plate 30 against the lower die 23A. As a result, the metal thin plate 30 is positioned on the lower mold 23A.

A rod 186 shown in FIG. 18 is connected to the eccentric cam 132 shown in FIG. 7 via a bearing 184. The upper end of the rod 186 is rotatably supported via a pin 192 on the left end of a 90-degree folding arm 190 pivotally supported by a pin 188 near the lower mold 23A shown in FIG. 90 degree folding arm 1
A folding portion 191 is formed at the right end portion of 90, and the folding portion 191 bends the other end portion 30C of the metal thin plate 30 placed on the lower die 23A by 90 degrees.

Therefore, when the shaft 154 rotates, the rod 186 moves up and down by the eccentric rotation action of the eccentric cam 132. By the downward movement of the rod 186 at this time, the 90-degree folding arm 190 swings counterclockwise in FIG.
15 retreats above the lower mold 23A as indicated by the chain double-dashed line in FIG. 15, so that the thin metal plate 30 on the upstream side is conveyed to the small diameter bending station / goby bending station 22 by the feed pitch movement of the feed bar 28. Then, as the rod 186 moves upward, the 90-degree folding arm 190 moves to the pin 18
8, swinging clockwise in FIG.
1 is made to collide with the other end 30C of the thin metal plate 30 and the other end 3
Bend 0C 90 degrees. The 90-degree folding arm 1
The 90 is formed in a frame shape as shown in FIG. In the frame of the 90-degree folding arm 190, an angling arm 200 described later is arranged without interference.
In the figure, the work holding arm 180 (see FIG.
(See) is omitted.

A rod 196 shown in FIG. 19 is connected to the eccentric cam 134 shown in FIG. 7 via a bearing 194. The upper end of the rod 196 is attached to the left end of the V-shaped angling arm 200 pivotally supported by the pin 198 near the lower mold 23A shown in FIG.
It is rotatably supported via 2. A sharpened portion 201 is formed at the right end of the angling arm 200, and the sharpened portion 201 bends the other end 30C of the thin metal plate 30 placed on the lower die 23A.

Therefore, when the shaft 154 rotates, the rod 196 moves up and down by the eccentric rotation action of the exen cam 134. By the downward movement of the rod 196 at this time, the angling arm 200 swings counterclockwise in FIG. 15 about the pin 198, and the pointed portion 201 moves above the lower mold 23A as shown by the chain double-dashed line in FIG. The metal thin plate 30 on the upstream side is conveyed to the small-diameter bending station / goby bending station 22 by the feed pitch movement of the feed bar 28. Then, as the rod 196 moves upward, the angling arm 200 swings clockwise around the pin 198 in FIG. 15, and the sharp portion 201 collides with the other end portion 30C of the thin metal plate 30 and the other end portion. 30C is goby bent.

The drive branch gearbox 146 shown in FIG. 7 is provided with a manual handle 147 for moving the device at a very low speed to check the adjustment.

Next, the operation of the small-diameter bending station / goby bending station 22 configured as described above will be described.

First, as shown in FIG. 21, the upper die 23 for small-diameter bending is arranged on the right side in the drawing, and the work holding arm 180, the 90-degree folding arm 190, and the angling arm 200 for the goby bending are arranged. It is arranged on the left side in the figure of the upper mold 23. That is, the small-diameter bending upper die 23 and the goby-bending arms 180, 190, and 200 are arranged at positions where they do not interfere with each other.

In the small-diameter bending station / goby bending station 22 having such an arrangement positional relationship, the metal thin plate 30 is conveyed from the upstream side to the lower die 23A. The thin plate conveying rails in this portion are separated to form a lower mold 23A and a vertically movable lifter 22A embedded therein. First, the work pressing arm 180 retracted above the lower mold 23A moves downward (swings clockwise in FIG. 15), and the metal thin plate 30 is moved downward by the pressing part 181 as shown in FIG. 23A and press the metal thin plate 30 into the lower mold 2
Position to 3A.

Next, as shown in FIG. 21 (b), the upper die 23 moves downward to push down the lifter 22A through the metal thin plate 30, and the lower die 23A and the upper die 23 bend the end portion 30B of the metal thin plate 30. The portion R is formed, and at the same time, the 90-degree folding arm 190 moves downward to move the 90-degree folding arm 190.
The other end portion 30C of the metal thin plate 30 is bent 90 degrees at the folding portion 191 of FIG.

Next, as shown in FIG. 21C, the angling arm 200 advances toward the thin metal plate 30, and the sharpened portion 20
At 1, the other end portion 30C of the thin metal plate 30 is bent by goby.

As described above, the curved portion R and the goby curved portion can be formed in the same station 22.

As described above, the manufacturing apparatus 10 of the embodiment is
Conventionally, the small-diameter bending station 3 (see FIG. 22) and the goby bending station 4, which have been separately installed, are integrated. This was done by focusing on the following points. That is, the small-diameter bending station is a station that processes the bent portion R on the one end portion 30B of the metal thin plate 30 with the metal thin plate 30 positioned, and the goby bending station has the metal thin plate 30 positioned with the metal thin plate 30 positioned. This is a station for processing a goby bent portion on the other end 30C of the thin plate 30. In short, even if the small-diameter bending station and the goby bending station are integrated, since each station processes different parts of the thin metal plate 30, the devices of each station do not interfere with each other, and there is no obstacle to integration. Absent.

Therefore, the manufacturing apparatus 10 of the embodiment in which the small-diameter bending station and the goby bending station are integrated.
Since the transport line for the thin metal plate 30 is shortened, the size is smaller than that of the conventional device, and the small-diameter bending and the goby bending are performed at the same time by the work holding arm 180 once. Accuracy is also improved.

[0075]

As described above, according to the method and apparatus for manufacturing a patrone body plate of the present invention, the small-diameter bending station and the goby bending station, which are conventionally provided separately, are integrated. Since the manufacturing process is shortened, the manufacturing apparatus can be downsized, the processing accuracy is improved, and the production efficiency is also improved.

[Brief description of drawings]

FIG. 1 is a plan view of a patrone body plate manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of the patrone body plate manufacturing apparatus shown in FIG.

FIG. 3 is a right side view of the patrone body plate manufacturing apparatus shown in FIG.

FIG. 4 is a sectional view of a double-end bending station.

FIG. 5 is a sectional view of a main part of a feed bar.

FIG. 6 is a structural diagram showing a power mechanism of the molding apparatus.

FIG. 7 is a structural diagram showing a power mechanism of the molding apparatus.

FIG. 8 is a structural diagram of a connecting portion between a feed bar and a bucket conveyor.

FIG. 9 is an explanatory view showing a process of processing a thin metal plate.

FIG. 10 is a perspective view of a cartridge.

FIG. 11 is an enlarged perspective view of an essential part showing an adhesive part of a velvet ribbon.

FIG. 12 is an explanatory view showing the structure of an OK shoot.

FIG. 13 is a structural diagram of a power mechanism including an AC servo motor.

FIG. 14 is a structural diagram of a power mechanism including an AC servo motor.

FIG. 15: Structural drawing of small diameter bending station and goby bending station

FIG. 16: Structural drawing of small diameter bending station

FIG. 17 is a structural diagram of a work clamp arm.

FIG. 18 is a structural diagram of a 90-degree folding arm.

FIG. 19 is a structural diagram of an angling arm.

FIG. 20 is a perspective view of essential parts showing the positional relationship between the 90-degree folding arm and the angling arm.

FIG. 21 is an operation explanatory view of the small-diameter bending station and the goby bending station.

FIG. 22 is a plan view showing a conventional Patrone body plate manufacturing apparatus.

FIG. 23 is a diagram illustrating a procedure for manufacturing a patrone body plate using a conventional patrone body plate manufacturing apparatus.

[Explanation of symbols]

10 ... Patrone body plate manufacturing device, 11 ... Front stage processing unit,
12 ... Post-stage processing unit, 14 ... Velvet ribbon sticking / cutting device, 16 ... OK / NG sorting / collecting device, 18 ... Sheet supply station, 20 ... Corner cutting station, 22 ... Small diameter bending station and goby bending station, 24 … Bending stations on both ends, 28… feed bar, 30… metal sheet,
32 ... claws, 42 ... bucket conveyors, 46 ... buckets,
48 ... NG chute, 50 ... OK chute, 54 ... Velvet ribbon, 70 ... Ribbon cutting part, 72, 74 ... Ribbon cutting mechanism, 76 ... Magnet conveyor, 78 ... Electromagnet and permanent magnet, 90 ... AC servo motor, 122, 12
4, 126, 128, 130, 132, 134 ... Exencam, 180 ... Work holding arm, 190 ... 90 degree folding arm, 200 ... Angling arm

Claims (2)

[Claims] 1. A thin metal plate cut so that the vertical and horizontal dimensions thereof are the same as the developed vertical and horizontal dimensions of the cartridge body plate is sequentially transported from the thin plate supply station by the transport means, and the corners are arranged in the transport path by the transport means. In the part cutting station, the four corners of the metal thin plate are cut into a predetermined shape, and at the small diameter bending station and the goby bending station installed on the downstream side of the conveyance path of the corner cutting station, after positioning and fixing the metal thin plate, A small-diameter bent portion is bent at the two corners of one end of the metal thin plate, and a goby bent portion is bent at the other end of the metal thin plate at the same time. The small-diameter bending station and the goby bending station are installed on the downstream side of the conveying path. A method for manufacturing a patrone body plate, which comprises bending a thin metal plate into a predetermined shape having a substantially boat-shaped cross section at a double-end bending station. 2. A thin plate supply station in which a thin metal plate having the same vertical and horizontal dimensions as the developed vertical and horizontal dimensions of the Patrone body plate is housed, a transport means for sequentially taking out and transporting the metal thin plates from the thin plate supply station, and said transport means. And a corner cutting station having a cutting part for cutting the four corners of the metal thin plate into a predetermined shape, and the metal thin plate is installed on the downstream side of the corner cutting station. A pressing portion for positioning and fixing, a small-diameter bending forming portion for bending a small-diameter bending portion at two corners of one end of the thin metal plate positioned and fixed by the pressing portion, and bending processing by the small-diameter bending forming portion. At the same time, a small diameter bending station and a goby bending station having a goby bending forming portion for bending the goby bending portion at the other end of the thin metal plate, and the small diameter bending station. Station and a gore bending station, the patrone body plate is provided on the downstream side of the conveyance path and has a both-end bending station having a processing part for bending the thin metal plate into a predetermined shape having a substantially boat-shaped cross section. Manufacturing equipment.