JP2018075635A - Can manufacturing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a can manufacturing apparatus which can unfailingly discard defects of cans held by a holding table and tranport non-defective cans to a next step without discarding the cans wastefully to improve product yield and increase the number of produced cans when resuming operation from the stop state of the apparatus.SOLUTION: A can manufacturing apparatus includes: a supply wheel 10 which supplies cans W to a holding table 3; a discharge wheel 11 which discharges the cans W (p) from the holding table 3; first detection means 21 which detects the cans W held by the supply wheel 10; second detection means 22 which detects the cans P held by the discharge wheel 11; transport means 13 having a next step transport passage in which non-defective cans of the cans P discharged by the discharge wheel 11 are transported, a discard transport passage in which the defective cans are transported, and a switch part provided at a branch portion between the next step transport passage and the discard transport passage; and a control part 14 which causes the switch part to operate on the basis of a detection result of the first detection means 21 and the second detection means 22.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a can manufacturing apparatus that processes a can (work) to manufacture a bottle can, an aerosol can, and the like.

  2. Description of the Related Art Conventionally, a can manufacturing apparatus that manufactures a bottle can, an aerosol can, or the like by processing a work can (intermediate molded body can) made of an aluminum alloy material or the like is known (see, for example, Patent Document 1 below). .

  The can manufacturing apparatus is supported by the apparatus main body, the holding table that is supported by the apparatus main body and holds a plurality of cans, and the shaft that penetrates the holding table in the table axis direction. With respect to the processing table, which is opposed to the table axis direction and is provided with a plurality of processing tools for processing the can, a crank mechanism for reciprocating the processing table in the table axis direction with respect to the holding table, and the processing table For the table index mechanism that rotates the holding table intermittently around the table axis, the supply wheel that supplies the can to the holding table, the discharge wheel that discharges the can from the holding table, and the intermittent rotation of the holding table around the table axis Synchronously, a wheel index that rotates the supply wheel and the discharge wheel intermittently around each wheel axis. And a scan mechanism and, the.

A plurality of cylindrical cans such as DI cans, which are workpieces, are held on the holding table along the table circumferential direction around the table axis. Specifically, the holding table is provided with a plurality of chucks (can holders) that can hold cans arranged in the circumferential direction of the table, and the cans are chucked with their open ends directed toward the processing table. Retained.
In the processing table, a plurality of processing tools for processing the can are disposed along the circumferential direction of the table. Specifically, a plurality of attachment holes penetrating in the table axis direction are formed in the processing table in the table circumferential direction, and the plurality of processing tools are attached to these attachment holes in the order of processing to the can.

The plurality of processing tools include a die processing tool and a rotational processing tool.
The die processing tool moves with respect to the can in the central axis direction (direction parallel to the table axis) and performs die processing such as drawing processing for reducing the diameter of the peripheral wall of the can and diameter expansion processing for expanding the diameter of the peripheral wall. . The rotary processing tool moves around its central axis with respect to the can, and by rotating around the central axis, the peripheral wall of the can is rotated such as trimming, screw forming, curling, and throttle (curl crushing). Apply.

  The holding table and the processing table are repeatedly moved toward and away from each other in the table axis direction by the crank mechanism, and are relatively rotated relative to each other in the table circumferential direction by the table index mechanism. Specifically, the processing table moves toward and away from the holding table in the table axis direction, and the holding table moves around the table around the one stroke (reciprocating movement). Rotate in the direction by a predetermined amount.

Then, for each stroke in which the tables approach and separate from each other, the can (work) is processed, and the can is moved to the processing position by the next processing tool.
By repeating this operation, the can held by the holding table is sequentially processed by a plurality of processing tools provided on the processing table, and when a series of processing ends, the expected shape Cans of products having bottles (bottle cans, aerosol cans, etc.) are manufactured.

  The supply wheel and the discharge wheel are supported by the apparatus main body with the wheel shafts arranged parallel to the table shaft. On each outer peripheral surface of the supply wheel and the discharge wheel, a plurality of recesses (pockets) capable of holding the peripheral wall of the can are formed at intervals in the wheel circumferential direction around the wheel axis. The supply wheel and the discharge wheel are intermittently rotated around each wheel axis by a wheel index mechanism in synchronization with intermittent rotation around the table axis of the holding table and in a direction opposite to the rotation direction of the holding table. Rotated.

Then, when the supply wheel rotates intermittently and the can held in the recess of the supply wheel is disposed at a position corresponding to the chuck of the holding table (directly above the chuck), the pushing portion provided on the processing table is The can is pushed toward the holding table, and the can is transferred from the recess to the chuck and held by the chuck.
Further, when the can held by the chuck of the holding table is disposed at a position corresponding to the concave portion of the discharge wheel (directly below the concave portion) after all processing, the piston portion provided on the holding table is The can is pushed out toward the discharge wheel, and the can is transferred from the chuck to the recess and held in the recess.
The can discharged from the holding table by the discharge wheel is transferred to the next process by a transfer means such as a conveyor.

JP 2006-150425 A

However, the conventional can manufacturing apparatus has the following problems.
In this type of can manufacturing apparatus, when the operation is resumed from the stop state of the apparatus, the speed of the reciprocating movement in the table axis direction of the processing table relative to the holding table is set to prevent an excessive load from acting on the apparatus. It is gradually increased by an inverter or the like to reach a predetermined reciprocating speed (steady reciprocating speed during continuous operation; hereinafter referred to as “predetermined speed”). In this case, until the operation is resumed and machining is performed at a predetermined speed, the inertial force of the machining table gradually increases, so that the table axis direction between the machining table and the holding table is increased. The distance also changes little by little. Then, when the reciprocating speed of the processing table reaches a predetermined speed, the can is set in advance so as to be processed with the desired dimensional accuracy.

  For this reason, conventionally, once the apparatus is stopped when an abnormality occurs in the apparatus, all the cans held on the holding table are discarded as defective products when the operation is resumed. However, in reality, not all cans held on the holding table are defective, and good cans are included.

  Specifically, it is difficult to ensure processing accuracy unless processing is performed at a predetermined speed, such as screw forming processing or final trimming processing, and predetermined processing such as die processing of the first half of a plurality of die processing, for example. Even if processing is performed at a speed slower than the speed, there is a process that has little influence on the processing accuracy, and the processing accuracy is sufficiently ensured by subsequent processing or the like. And when the process which is difficult to ensure the processing accuracy is performed at a speed slower than a predetermined speed, the can becomes a defective product.

  The present invention was made in view of such circumstances, and when resuming operation from the stopped state of the apparatus, out of the cans held in the holding table, it can be reliably discarded for defective products, It is an object of the present invention to provide a can manufacturing apparatus that can transfer non-defective products to the next process without being wasted, improve the product yield, and increase the number of production cans.

  The can manufacturing apparatus according to an aspect of the present invention includes a holding table that holds a plurality of cans and that rotates intermittently around a table axis, and a plurality of processing tools that process the cans. The table is opposed to the table axis direction and reciprocates in the table axis direction, and the holding table rotates intermittently around the wheel axis in synchronization with the intermittent rotation around the table axis. A supply wheel to supply, a discharge wheel that rotates intermittently around the wheel axis in synchronization with intermittent rotation around the table axis of the holding table, and discharges the can from the holding table; and a can held by the supply wheel The first detection means for detecting, the second detection means for detecting the can held by the discharge wheel, and the non-defective product among the cans discharged by the discharge wheel are conveyed. A transport path for the next process, a transport path for discarding defective products, and a switching unit that is provided at a branch portion between the transport path for the next process and the transport path for disposal, and switches the transport path. And a controller that operates the switching unit based on detection results of the first detector and the second detector.

  According to the can manufacturing apparatus of the present invention, since the first detection means for detecting the can held by the supply wheel is provided, the number of cans delivered from the supply wheel to the holding table can be counted. Moreover, since the 2nd detection means which detects the can hold | maintained by the discharge wheel is provided, the quantity of cans delivered to this discharge wheel from a holding table can be counted. That is, by counting the number of cans supplied to the holding table and the number of cans discharged from the holding table, it is possible to recognize the situation of the cans that are processed in the holding table.

Specifically, when an abnormality or the like occurs in the apparatus and the apparatus is stopped, the control unit determines the total number of cans held in the holding table based on the detection results of the first detection means and the second detection means. The processing position of each can can be recognized.
Thereby, when the operation of the apparatus is resumed, the position of the can which has become defective because the processing at the predetermined speed (steady stroke speed during continuous operation) was not performed in the holding table, It becomes possible to recognize the number of defective cans and the like. In other words, non-defective cans that have been processed at a predetermined speed on the holding table, and those that have been processed at a speed slower than the predetermined speed have little effect on the processing accuracy, and the processing accuracy is improved by subsequent processing, etc. It is possible to specify the position of a good product can sufficiently secured, and to recognize the number of good product cans.
It is also possible to recognize when defective cans and non-defective cans are discharged from the holding table by the discharge wheel and delivered to the conveying means.

  Note that, when the operation of the apparatus is resumed, whether or not the reciprocating speed of the machining table has reached a predetermined speed is described in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 2006-150425). As shown in the figure, it may be performed based on the detection result of the encoder that detects the rotation speed of the drive motor, or, for example, empirically, when a predetermined number of strokes are reached or a predetermined time elapses after restarting operation. It may be determined that the predetermined speed has been reached.

In the present invention, among the cans discharged from the holding table by the discharge wheel, when the non-defective cans are being transported by the transport means, the control unit operates the switching unit to place the non-defective cans in the next process. Transport to the transport path. In addition, when the defective product can is conveyed by the conveying means, the control unit operates the switching unit to convey the defective product can to the disposal conveyance path.
In other words, when the stopped device is operated again, instead of discarding all of the multiple cans held on the holding table, only the defective cans are discarded among these cans. Can be transported to the next process without being discarded.

  As described above, according to the present invention, when the operation is resumed from the stop state of the apparatus, among the cans held in the holding table, defective products can be reliably discarded, and non-defective products can be discarded without waste. It can be transported to the process, the product yield can be improved, and the number of production cans can be increased.

  The can manufacturing apparatus preferably includes a shooter that supplies the can to the supply wheel, and an entry-side can stopper that is provided on the shooter and stops supply of the can to the supply wheel.

  In the above configuration, the shooter that supplies the can to the supply wheel is provided with an entry side can stopper, so if you want to stop the device temporarily, for example, if you want to change the type of can that you want to make, The can stopper can be actuated to stop the supply of the can to the supply wheel. Thereby, since the supply of cans from the supply wheel to the holding table is also stopped, all the cans held by the holding table can be dispensed (all cans can be discharged by the discharge wheel). If all the cans are paid out from the holding table and the apparatus is stopped, no defective cans are produced when the apparatus is restarted, and no waste occurs.

  At this time, since the first detection means and the second detection means are provided in the can manufacturing apparatus, the control unit can recognize that all the cans have been paid out from the holding table. Therefore, the control unit can stop the apparatus immediately after all the cans are paid out from the holding table, for example, and no loss occurs from the point of operation of the equipment.

  Also, for example, when a large amount of cans are stocked and crowded in the subsequent process of the can manufacturing device, the can can be manufactured without stopping the device by stopping the supply of cans to the supply wheel by the inlet can stopper. The can can be temporarily stopped.

  Moreover, the said can manufacturing apparatus WHEREIN: It is preferable that the said conveyance means was provided in the upstream of the conveyance direction of a can rather than the said switching part, and was equipped with the outlet side can stopper which stops conveyance of a can.

  In this case, while the switching unit is operated by the control unit, the conveyance of the can can be stopped by the outlet side can stopper upstream of the switching unit. Therefore, during operation of the switching unit, the can passes through the switching unit and is sent to an unintended conveyance path, or the can is caught by the switching unit during operation of the switching unit. This can prevent the switching operation from being affected.

  As a result, only non-defective cans can be reliably transported to the transport path for the next process, and defective cans can be transported to the transport path for disposal. Therefore, the quality of the can of the product sent to the next process (post process) is stabilized, and it is prevented that the good can is discarded wastefully.

  According to the can manufacturing apparatus of the present invention, when the operation is resumed from the stop state of the apparatus, among the cans held on the holding table, defective products can be reliably discarded, and non-defective products are discarded wastefully. It can be transported to the next process, and the product yield can be improved and the number of production cans can be increased.

It is a top view which shows schematic structure of the can manufacturing apparatus which concerns on one Embodiment of this invention. It is a front view which shows the II-II cross section of the can manufacturing apparatus of FIG. It is a figure which expands and shows the principal part of the conveyance means of the can manufacturing apparatus of FIG. It is a side view which shows the switching part of a conveyance means. It is a flowchart explaining the switching operation of the switching part of a conveyance means. It is a flowchart explaining the switching operation of the switching part of a conveyance means. It is a figure which simplifies and shows the drive motor of a can manufacturing apparatus, a crank mechanism (reciprocating mechanism), a table index mechanism, a wheel index mechanism, etc.

Hereinafter, can manufacturing device 1 concerning one embodiment of the present invention is explained with reference to drawings.
1 and 2, the can manufacturing apparatus 1 according to the present embodiment performs various types of bottle necking including die processing and rotational processing on a bottomed cylindrical can (intermediate molded body can) W that is a workpiece. Is a so-called bottle necker that produces a bottle can (product can) P having a desired shape.

  The can W supplied as a workpiece to the can manufacturing apparatus 1 is a DI can that has been subjected to DI (Drawing & Ironing) processing, printing, and painting in the previous process. DI cans are obtained by applying a cupping process (drawing process), DI process (drawing and squeezing process), trimming process, printing process, painting process, etc. to a disc-shaped blank punched out of a plate material such as an aluminum alloy material. It is formed in a bottom cylinder shape.

The can W includes a cylindrical peripheral wall (can body) and a generally disc-shaped bottom wall (can bottom). The central axis of the peripheral wall of the can W and the central axis of the bottom wall are arranged coaxially with each other. In the present embodiment, these common axes are referred to as the central axis (can axis) of the can W. By subjecting the can W to bottle necking, along the central axis direction of the can W between the body portion (maximum diameter portion) and the mouth portion (open end portion, minimum diameter portion) of the peripheral wall. A tapered neck portion that gradually decreases in diameter from the trunk portion toward the mouth portion is formed.
The bottle can P manufactured by processing the can W with the can manufacturing apparatus 1 is filled with contents such as a beverage in a subsequent process, and a cap is screwed thereon.

  As shown in FIGS. 1 and 2, the can manufacturing apparatus 1 includes an apparatus main body 4, a holding table 3 supported by the apparatus main body 4, and provided with a plurality of chucks (can holders) 7 that hold the can W. A processing tool that is supported by the apparatus body 4 via a shaft portion 5 that passes through the holding table 3 in the direction of the table axis TA, and that is opposed to the holding table 3 from the direction of the table axis TA and that processes the can W And a machining table 2 provided with a plurality of 6. The processing table 2 and the holding table 3 each have a central axis (table axis TA) extending in the horizontal direction, and these central axes are arranged coaxially with each other.

  As shown in FIGS. 1, 2, and 6, the can manufacturing apparatus 1 includes a crank mechanism (reciprocating mechanism) 8 that reciprocates the processing table 2 in the direction of the table axis TA with respect to the holding table 3, and the processing table. And a table index mechanism 9 that intermittently rotates the holding table 3 around the table axis TA. That is, the machining table 2 reciprocates in the table axis TA direction. The processing table 2 reciprocates in the table axis TA direction with respect to the holding table 3 and the apparatus main body 4. The holding table 3 is intermittently rotated around the table axis TA. The holding table 3 is intermittently rotated around the table axis TA with respect to the processing table 2 and the apparatus body 4.

  Further, the can manufacturing apparatus 1 includes a supply wheel 10 that supplies the can W to the holding table 3, a discharge wheel 11 that discharges a processed can (made bottle can) P from the holding table 3, and a table of the holding table 3. A wheel index mechanism 12 that rotates the supply wheel 10 and the discharge wheel 11 intermittently around the wheel axes SA and DA in synchronization with the intermittent rotation around the axis TA is provided. That is, the supply wheel 10 rotates intermittently around the wheel axis SA in synchronization with intermittent rotation around the table axis TA of the holding table 3. The discharge wheel 11 rotates intermittently around the wheel axis DA in synchronization with the intermittent rotation around the table axis TA of the holding table 3.

  The can manufacturing apparatus 1 includes a drive motor (drive source) 34 that drives the crank mechanism 8, the table index mechanism 9, and the wheel index mechanism 12, and a transport unit that transports the can P discharged from the holding table 3 by the discharge wheel 11. 13 and a control unit 14. The drive motor 34 is, for example, an inverter motor.

The definition of the direction (direction) used in the present embodiment is as follows.
A direction along the table axis TA (a direction in which the table axis TA extends) is referred to as a table axis TA direction.
The direction orthogonal to the table axis TA is referred to as the table radial direction. Of the table radial direction, the direction away from the table axis TA is referred to as the outer side of the table radial direction, and the direction approaching the table axis TA is referred to as the inner side of the table radial direction.
In addition, a direction that circulates around the table axis TA is referred to as a table circumferential direction. Of the table circumferential directions, the direction in which the holding table 3 is intermittently rotated with respect to the processing table 2 is referred to as a holding table rotation direction R1, and the opposite rotation direction is referred to as the opposite side to the holding table rotation direction R1. .

  The holding table rotation direction R1 is the same as the direction in which a plurality of processing tools 6 to be described later on the processing table 2 are arranged in the table circumferential direction in the order of processing to the can W. Therefore, the holding table rotation direction R1 can be referred to as the downstream side in the processing order to the can W (processing forward direction), and the side opposite to the holding table rotation direction R1 is referred to as the upstream side in the processing order to the can W. be able to.

  1, 2, and 6, the holding table 3 and the machining table 2 are repeatedly moved toward and away from each other in the table axis TA direction by the crank mechanism 8, and are moved in the table circumferential direction by the table index mechanism 9. Relative rotation is intermittent. Specifically, the machining table 2 moves toward and away from the holding table 3 in the direction of the table axis TA, and the holding table is moved relative to the machining table 2 during one approaching and separating stroke (reciprocating movement). 3 rotates (intermittently rotates) by a predetermined amount in the table circumferential direction.

Then, for each stroke in which the processing table 2 and the holding table 3 approach and separate, the can W held by the chuck 7 of the holding table 3 is processed by the processing tool 6 provided on the processing table 2, The holding table 3 moves the can W to the downstream side (holding table rotation direction R1) in the processing order to the processing position by the next (another) processing tool 6.
By repeating this operation, the can W held by the holding table 3 is sequentially processed by the plurality of processing tools 6 provided on the processing table 2, and when a series of processing is completed, A can (bottle can) P having a desired shape is manufactured.

  The holding table 3 is generally called a turntable or an index table. The holding table 3 has a disk shape or a circular ring shape. A plurality of chucks 7 are arranged along the circumferential direction of the table on the outer peripheral portion of the surface of the holding table 3 facing the processing table 2 side. These chucks 7 each hold a can W, and the open end of the held can W opens toward the processing table 2. That is, the holding table 3 holds a plurality of cans W.

The processing table 2 is generally called a die table. The processing table 2 has a disk shape or a circular ring shape. A plurality of processing tools 6 for processing the can W held by the holding table 3 are arranged on the processing table 2 along the circumferential direction of the table. These processing tools 6 are arranged along the table circumferential direction on the outer peripheral portion of the surface facing the holding table 3 side in the processing table 2, and the table axis TA with respect to the plurality of cans W held by the holding table 3. They are opposed to each other from the direction.
Further, the processing tool axis (center axis) of the processing tool 6 of the processing table 2 and the center axis of the can W (that is, the center axis of the chuck 7) facing the processing tool 6 in the holding table 3 are arranged coaxially with each other. Is done. Then, the can W is processed by the processing tool 6 in a state where the center axis of the can W and the processing tool axis coincide with each other.

  A plurality of mounting holes are formed in the processing table 2 so as to penetrate in the table axis TA direction. The plurality of processing tools 6 are attached to these mounting holes in the order of processing into the can W.

  The plurality of processing tools 6 include a die processing tool and a rotation processing tool. In the present embodiment, a plurality of die processing tools and a plurality of rotation processing tools are detachably disposed in the plurality of mounting holes of the processing table 2 in the order of processing to the can W. In addition, some of the plurality of mounting holes may be empty spaces in which the processing tool 6 cannot be mounted. An oiling tool is disposed in some of the plurality of mounting holes.

  The die processing tool moves in the direction of the central axis (direction parallel to the table axis TA) with respect to the can W to reduce the diameter of the peripheral wall (can body) of the can W, and to expand the diameter of the peripheral wall. Die processing such as processing is performed. One type of die processing is performed on the can W by one die processing tool.

  The rotary processing tool moves about its central axis with respect to the can W, and the peripheral wall (can body) of the can W is trimmed, screw-molded, curled, and throttled (curl crushed) by rotating around the central axis. ) Rotary processing such as processing is performed. One rotation processing is performed on the can W by one rotation processing tool.

  The shaft portion 5 is provided integrally with the processing table 2 and extends on the table shaft TA. The shaft portion 5 penetrates the holding table 3 in the direction of the table axis TA and is movable in the direction of the table axis TA with respect to the holding table 3. It is. The shaft portion 5 is supported by the apparatus main body 4 so as to be slidable in the direction of the table axis TA, and the end opposite to the processing table 2 along the table axis TA direction is connected to a connecting rod (not shown) of the crank mechanism 8. It is connected.

As shown in FIG. 6, the crank mechanism 8 is connected to the drive shaft 35 to which the rotational drive force from the drive motor 34 is input, and the drive shaft 35, and the drive shaft 35 rotates as the drive shaft 35 rotates. A crankshaft 36 rotated around the central axis O, and a connecting rod (not shown) for connecting the crankshaft 36 and the shaft portion 5 are provided. The crankshaft 36 rotates around the central axis O of the drive shaft 35 at a constant angular velocity.
The crank mechanism 8 converts the rotational motion around the central axis O of the drive shaft 35 input from the drive motor 34 to the drive shaft 35 into linear motion in the direction of the table axis TA and outputs the linear motion to the shaft portion 5.

  The table index mechanism 9 has a cam structure. The table index mechanism 9 rotates and stops the rotation of the holding table 3 around the table axis TA (intermittently rotates) for each stroke of the reciprocating movement of the machining table 2 due to the cam structure.

The supply wheel 10 is called an infeed wheel and has a substantially cylindrical shape. As shown in FIG. 2, the supply wheel 10 receives the can W supplied to the shooter 15 from the outside (pre-process) of the can manufacturing apparatus 1 and transfers the can W to the holding table 3.
The discharge wheel 11 is called a discharge wheel and has a substantially cylindrical shape. The discharge wheel 11 receives the can W (bottle can P) processed by the can manufacturing apparatus 1 from the holding table 3 and transfers (discharges) it to the conveying means 13. The conveyance means 13 conveys the can P toward the exterior (post process) of the can manufacturing apparatus 1.

The supply wheel 10 is supported by the apparatus main body 4 with its central axis (wheel axis) SA arranged parallel to the table axis TA. The supply wheel 10 is rotated in the wheel rotation direction R2 around the wheel axis SA.
The discharge wheel 11 is supported by the apparatus main body 4 with its central axis (wheel axis) DA arranged parallel to the table axis TA. The discharge wheel 11 is rotated in the wheel rotation direction R3 around the wheel axis DA.
Although not shown in particular in the outer peripheral surfaces of the supply wheel 10 and the discharge wheel 11, a plurality of recesses (pockets) capable of holding the peripheral wall of the can W are formed at intervals in the circumferential direction.

  As shown in FIG. 6, the wheel index mechanism 12 has a cam structure. The wheel index mechanism 12 uses a cam structure to rotate and stop the supply wheel 10 around the wheel axis SA (intermittent rotation) and to rotate the discharge wheel 11 around the wheel axis DA for each stroke of the reciprocating movement of the machining table 2. Rotate and stop rotation (intermittent rotation).

The supply wheel 10 and the discharge wheel 11 are synchronized with the intermittent rotation around the table axis TA of the holding table 3 by the wheel index mechanism 12 and the wheel rotation direction R2 is reverse to the rotation direction R1 of the holding table 3. , R3 are rotated intermittently.
The supply wheel 10 and the discharge wheel 11 are mechanically connected by a gear or the like, and intermittently rotate around the wheel shafts SA and DA in synchronization with each other.

Specifically, in FIG. 2, when the supply wheel 10 rotates intermittently and the can W held in the recess of the supply wheel 10 is arranged at a position corresponding to the chuck 7 of the holding table 3 (directly above the chuck 7). In addition, the pushing portion provided on the processing table 2 pushes the can W toward the holding table 3, and the can W is transferred from the concave portion to the chuck 7 and is held by the chuck 7.
Further, the can W held by the chuck 7 of the holding table 3 is transferred in the holding table rotation direction R1 for each stroke of the processing table 2, and after finishing all the processing, the position corresponding to the concave portion of the discharge wheel 11 ( When the piston portion provided on the holding table 3 pushes the can W (the bottle can P of the product subjected to all the processing) toward the discharge wheel 11 side, The can W (P) is transferred from the chuck 7 to the recess and held in the recess.
The can (bottle can) P held in the recess is transferred around the wheel axis DA along with the intermittent rotation of the discharge wheel 11, and after being released from the recess, it is transported by the transport means 13, and can manufacturing apparatus 1 is transferred to the outside.

As shown in FIG. 2, the can manufacturing apparatus 1 includes a first detection unit 21 that detects the can W held by the supply wheel 10, and a second detection unit 22 that detects the can P held by the discharge wheel 11. It is equipped with.
The first detection means 21 is supported by the apparatus main body 4 so as to face the concave portion of the outer peripheral surface of the supply wheel 10. The second detection means 22 is supported by the apparatus main body 4 so as to face the concave portion of the outer peripheral surface of the discharge wheel 11. The first detection means 21 and the second detection means 22 are, for example, eddy current sensors or reflection sensors that can detect cans W and P made of an aluminum alloy material or the like.

Further, the can manufacturing apparatus 1 includes a shooter 15 that supplies the can W to the supply wheel 10, and an entry-side can stopper 16 that is provided on the shooter 15 and stops the supply of the can W to the supply wheel 10. .
The shooter 15 has a cylindrical shape that opens toward the recess on the outer peripheral surface of the supply wheel 10. A plurality of cans W transferred from the previous process to the can manufacturing apparatus 1 are accommodated in the shooter 15, and these cans W move toward the outer peripheral surface of the supply wheel 10 by their own weight.

  The entry-side can stopper 16 includes a stopper pin that is brought into contact with the can W, and a pin driving unit that supports the stopper pin so as to advance and retract toward the can W. The entry side can stopper 16 is disposed adjacent to the front end portion (that is, the opening portion of the shooter 15) of the shooter 15 in the conveyance direction (arrangement direction) of the cans W. The stopper pin is in the central axis direction (can axis direction) of the can W with respect to the bottom wall (can bottom) of the can W located at the front end in the transport direction among the plurality of cans W accommodated in the shooter 15. And can contact the bottom wall of the can W at the advanced position. Further, the pin drive unit is composed of, for example, an air cylinder.

Specifically, when the stopper pin is moved forward by the pin driving unit, the tip of the stopper pin presses the outer surface of the bottom wall of the can W toward the opening end along the can axis direction of the can W. To do. As a result, the open end of the can W is brought into contact with the inner wall of the shooter 15, and the can W is held between the stopper pin and the inner wall of the shooter 15.
As a result, the movement toward the supply wheel 10 is also stopped for the other cans W located behind the cans W pressed by the stopper pins in the shooter 15 in the transport direction.
Normally, while the can W is being continuously processed (made), the stopper pin is moved away from the shooter 15 by being separated from the bottom wall of the can W by the pin driving unit.

  The transport means 13 includes a transport guide and a transport conveyor for transporting the can P, and the transport conveyor is driven by a conveyor driving unit (not shown) to transport the can P toward the downstream side in the transport direction. . The conveyor is continuously operated regardless of whether the can manufacturing apparatus 1 is in an operating state (during a can making in which the processing table 2 and the holding table 3 are relatively reciprocally moved and intermittently rotated) or stopped. To do.

  The conveyance means 13 includes an upstream conveyance path 17 that conveys cans (bottle cans) P discharged from the holding table 3 by the discharge wheel 11 and a front end portion in the conveyance direction of the upstream conveyance path 17 (on the downstream side in the conveyance direction). And a downstream conveyance path 18 that conveys the can P conveyed from the upstream conveyance path 17. Also, the downstream transport path 18 is a next process transport path (post process transport) for transporting a non-defective can P among the plurality of cans P transported from the upstream transport path 17 to the next process (post process). Path) 19 and a disposal conveyance path 20 for conveying the defective can P to the disposal container. That is, the non-defective product among the cans P discharged by the discharge wheel 11 is transported to the next process transport path 19. Of the cans P discharged by the discharge wheel 11, defective products are conveyed to the disposal conveyance path 20.

  Further, the conveyance means 13 is located at a connection portion between the upstream conveyance path 17 and the downstream conveyance path 18 and is provided at a branch portion between the next process conveyance path 19 and the disposal conveyance path 20 to switch the conveyance path. A switching unit 23 and an outlet side can stopper 24 that stops the conveyance of the can P are arranged upstream of the switching unit 23 in the conveyance direction of the can P (rear in the conveyance direction).

  The upstream conveyance path 17 includes a first upstream conveyance path 17a that extends obliquely downward from an upper end (opening) that opens toward the concave portion of the outer peripheral surface of the discharge wheel 11, and a first upstream conveyance path 17a. Connected to the downstream end in the transport direction and connected to the downstream end of the second upstream transport path 17b extending in the horizontal direction and connected to the downstream end in the transport direction of the second upstream transport path 17b. A third upstream conveyance path 17c extending toward the top, and a fourth upstream conveyance path 17d extending in the horizontal direction connected to the upper end of the third upstream conveyance path 17c.

  In the first to third upstream conveyance paths 17a to 17c, the can P has a can axis extending in the horizontal direction (that is, the can P is in a laid state), and the can P can freely rotate around the can axis. It moves in the state that was said. Further, the laying can P is placed in an upright posture (that is, the bottom wall (can bottom) of the can P is directed downward) at the connecting portion between the third upstream conveyance path 17c and the fourth upstream conveyance path 17d. A raising mechanism 25 is provided for raising the opening end of the can P so that the opening end of the can P is directed upward and the can shaft extends in the vertical direction.

  As shown in FIGS. 1 and 3A, a can on the transport path 17d is disposed at the front end portion (downstream end portion in the transport direction) of the fourth upstream transport path 17d of the upstream transport path 17 in the transport direction. Third detection means 33 for detecting P is provided. The third detection means 33 is, for example, an eddy current sensor or a reflection sensor that can detect the can P made of an aluminum alloy material or the like.

  As illustrated in FIG. 3A, the switching unit 23 is located in front of the third detection unit 33 in the transport direction (downstream in the transport direction). Specifically, the switching unit 23 includes a fourth upstream conveyance path 17 d in the upstream conveyance path 17, a connection portion (branch portion) between the conveyance path 19 for the next process and the disposal conveyance path 20 in the downstream conveyance path 18. Are provided at the connection site (that is, the three-way crossing). In the illustrated example, the switching unit 23 is a switching butterfly that guides the can P that has been transported on the fourth upstream transport path 17d to the transport path 19 for the next process or the transport path 20 for disposal.

Specifically, as shown in FIGS. 3A and 3B, the switching unit 23 extends so as to be erected vertically with respect to the upper surfaces of the transport paths 17 d, 19, 20 (extends in the vertical direction), and rotates around the axis. A rotatable rotation shaft 26, a plate-like partition portion 27 that is provided on the outer peripheral surface of the rotation shaft 26 and extends in the radial direction perpendicular to the axis, and a motor that rotates the rotation shaft 26 about the axis. And a switching drive unit 30.
Then, the partition drive unit 27 and the rotation shaft 26 are rotated about the axis of the rotation shaft 26 by the switching drive unit 30, so that the fourth upstream conveyance path 17 d of the upstream conveyance path 17 and the next process are used. Any one of the conveyance path 19 and the disposal conveyance path 20 is communicated with each other. That is, by operating the switching unit 23, the can P transported from the upstream transport path 17 is transported to the next process transport path 19 in the downstream transport path 18 or is transported to the disposal transport path 20. Or can be selected.

  As shown in FIG. 3A, the outlet can stopper 24 includes a gate stopper 28 that is brought into contact with the can P, and a stopper driving unit 29 that supports the gate stopper 28 so as to advance and retreat toward the conveyance path 17d. It has. The outlet can stopper 24 is disposed adjacent to the downstream end portion (front end portion in the transport direction) in the transport direction of the upstream transport path 17 (specifically, the fourth upstream transport path 17d). Further, the outlet-side can stopper 24 is located between the third detection means 33 and the switching unit 23 along the conveyance direction of the can P. Moreover, the stopper drive part 29 consists of an air cylinder etc., for example.

Specifically, when the gate stopper 28 is moved forward by the stopper driving unit 29, the tip of the gate stopper 28 presses the outer surface of the peripheral wall of the can P against the inner wall of the conveyance guide, or advances on the conveyance path 17d. Due to the moved gate stopper 28, the path toward the downstream side in the conveyance direction of the can P is blocked. Thereby, the movement of the can P conveyed on the conveyance path 17d is stopped.
Accordingly, other cans P positioned on the upstream side in the transport direction (rear in the transport direction) of the can P stopped on the gate stopper 28 on the transport path 17d are also directed toward the downstream side in the transport direction. The transport is stopped.
Normally, while the can P is continuously manufactured (can manufacturing), the gate stopper 28 is moved away from the peripheral wall of the can P by the stopper driving unit 29 and retracted from the conveyance path 17d. Yes.

For example, when an abnormality or the like occurs in the can manufacturing apparatus 1 and the apparatus is stopped and the operation of the apparatus is resumed, the control unit 14 is based on the detection results of the first detection means 21 and the second detection means 22. Then, the switching unit 23 is operated.
In the present embodiment, the control unit 14 includes a storage unit, a determination unit, and a control unit. The storage means stores, for example, the number of cans in the apparatus. The discriminating unit performs discrimination based on the detection results of the first detecting unit 21, the second detecting unit 22, and the third detecting unit 33, for example. The control means controls, for example, the operation of the entry side can stopper 16, the exit side can stopper 24, the switching unit 23, and the like.

  A method of controlling the apparatus when the can manufacturing apparatus 1 is restarted will be described in detail with reference to the flowcharts of FIGS. 4 and 5.

[Steps S01A-S02]
In FIG. 4, when abnormality etc. generate | occur | produce in the can manufacturing apparatus 1 (S01A), the control part 14 closes the entrance side can stopper 16 (S01B). That is, the stopper pin of the entry side can stopper 16 is advanced into the shooter 15 and the supply of the can W to the supply wheel 10 is stopped. The control unit 14 stops the drive motor 34 and stops the apparatus, and stores the quantities of cans W and P in the apparatus based on the detection result of the first detection means 21 and the detection result of the second detection means 22. (S02).

  The “abnormality or the like” is not particularly limited. For example, the fact that buckling or the like has occurred in the can W by a can detection sensor (not shown) provided in the vicinity of the chuck 7 of the holding table 3. The case where it detects, the case where the abnormal pressure of the various air used for the process of the can W, etc. are detected is mentioned. Further, the “quantity of cans W and P in the apparatus” means, for example, a plurality of concave portions provided on the outer peripheral surface of the supply wheel 10, which is downstream of the first detection means 21 in the transfer direction of the can W. The number of cans W held in the recess located on the side (wheel rotation direction R2), the number of cans W held on the chuck 7 of the holding table 3, and a plurality of recesses provided on the outer peripheral surface of the discharge wheel 11 Of these, the sum is obtained by the sum of the number of cans P held in the recesses located upstream of the second detection means 22 in the transfer direction of the cans P (the opposite side to the wheel rotation direction R3).

Specifically, the control unit 14 records the history of the presence or absence of cans W and P in the first detection unit 21 and the second detection unit 22 for each stroke of the reciprocating movement of the machining table 2. Then, when an abnormality or the like occurs, the number of cans existing between the first detection means 21 and the second detection means 22 (that is, the device) is traced back through a history of a predetermined stroke (for example, a predetermined value between 50 and 60 strokes). The quantity of cans W and P inside is recognized and stored.
More specifically, the control unit 14 is provided with containers for all stations between the first detection unit 21 and the second detection unit 22 (recording units for the total number of cans). The presence or absence of P is recognized. For each predetermined crank angle in the crank mechanism 8, the controller 14 records the recorded information on the cans W and P from the first station unit to the last station unit (that is, toward the downstream side of the time axis). )shift. In other words, when the information on the can W detected by the first detection means 21 is put in the first of the devices for all stations, the recorded information is sequentially shifted toward the downstream side of the time axis for each stroke thereafter. I will let you.
In this way, the control unit 14 can store the number of cans in the apparatus when an abnormality or the like occurs.

[Steps S03A-S04]
After the abnormality of the can manufacturing device 1 is resolved, the control unit 14 operates (restarts) the device again (S03A). Moreover, the control part 14 opens the entrance side can stopper 16 (S03B). That is, the stopper pin of the entry side can stopper 16 is retracted from the shooter 15 and the supply of the can W to the supply wheel 10 is resumed. At this time, in step S04, if the stop time of the apparatus is within a predetermined time (T1 sec), the process proceeds to step S05, and if longer than the predetermined time (T1 sec), the process proceeds to step S06.
The “predetermined time (T1 sec)” is set for the purpose of determining whether or not the operator has intervened in the apparatus, and is specifically about 10 to 20 minutes, for example. If the operator has intervened in the device, it is determined that all cans W and P in the device have been removed.

[Steps S05, S06]
In steps S <b> 05 and S <b> 06, the control unit 14 determines whether or not the can P exists on the transport conveyor of the transport unit 13 based on the detection result of the third detection unit 33. Specifically, when the detection (input) of the can P by the third detection unit 33 is not recognized for a predetermined time (T2 sec), the can is transported on the upstream transport path 17 of the transport unit 13 before the apparatus stops. It is determined that all the non-defective cans P have been transported to the transport path 19 for the next process of the downstream transport path 18.
The “predetermined time (T2 sec)” is, for example, about 30 seconds.

  In step S05, if there is no input for a predetermined time (T2sec) to the third detection means 33, the process proceeds to step S07. In step S06, if there is no input for a predetermined time (T2 sec) to the third detection means 33, the end is shown in FIG.

[Steps S07 to S08]
4 and 5, the control unit 14 is the most downstream side in the transfer direction (front end in the transfer direction) among the cans (hereinafter referred to as “memory cans”) W and P stored in the apparatus when the apparatus is stopped. When the first can P located in the position passes through the third detection means 33 (S07), the outlet can stopper 24 is closed (S08). That is, the gate stopper 28 of the outlet side can stopper 24 is advanced on the upstream side conveyance path 17 (fourth upstream side conveyance path 17d), and the conveyance of the can P toward the downstream side conveyance path 18 is stopped.

[Steps S09 to S10]
The control unit 14 operates the switching drive unit 30 of the switching unit 23 to rotate the partition unit 27 around the axis of the rotation shaft 26, and the upstream conveyance path 17 (fourth upstream conveyance path 17 d), The disposal conveyance path 20 is communicated with the downstream conveyance path 18 (S09). This also blocks communication between the upstream-side transport path 17 and the downstream-side transport path 18 with the next-process transport path 19.
Further, the control unit 14 opens the outlet can stopper 24 (S10). That is, the gate stopper 28 of the outlet side can stopper 24 is retracted from the upstream side conveyance path 17 (fourth upstream side conveyance path 17d), and conveyance of the can P toward the downstream side conveyance path 18 is resumed.

[Steps S11 to S13]
Based on the detection result of the third detection means 33, the control unit 14 counts the number of cans that have passed through the third detection means 33 (S11). The number of cans is counted until all of the defective cans W have passed through the memory cans W and P. When all of the defective cans W have passed (S12), the control unit 14 moves the outlet can stopper 24 down. Close (S13). That is, the gate stopper 28 of the outlet side can stopper 24 is advanced on the upstream side conveyance path 17 (fourth upstream side conveyance path 17d), and the conveyance of the can P toward the downstream side conveyance path 18 is stopped.

Of the memory cans W and P, the defective can W can be preset in the following manner, for example.
When resuming the operation of the can manufacturing apparatus 1 from the apparatus stop state, in order to prevent an excessive load from acting on the apparatus, the reciprocating speed of the processing table 2 relative to the holding table 3 in the direction of the table axis TA is set. The speed is gradually increased by the inverter motor (drive motor 34) to reach a predetermined reciprocating speed (steady reciprocating speed during continuous operation; hereinafter referred to as "predetermined speed"). Further, among the types of processing (processing) performed on the can W by the processing tool 6, it is difficult to ensure processing accuracy unless processing is performed at a predetermined speed, such as screw forming processing and final trimming processing. For example, even if processing is performed at a speed slower than a predetermined speed, such as die processing in the first half of a plurality of die processing, the processing accuracy is sufficiently affected by subsequent processing, etc. And are included. And when the process which is difficult to ensure the processing accuracy is performed at a speed slower than a predetermined speed, the can W becomes a defective product.

  Accordingly, in the memory cans W and P, among the plurality of cans W which are assumed to be formed into defective products by restarting the apparatus, the upstream side in the transfer direction (in other words, the upstream side in the processing order and held) When a predetermined can W located on the opposite side of the table rotation direction R1 is discharged by the discharge wheel 11 and transported on the transport means 13 and passes through the third detection means 33, the defective can W is All can be considered passed. Further, whether or not the predetermined can W has passed through the third detection means 33 can be determined by the control unit 14 based on the detection results of the first to third detection means 21, 22, and 33.

[Steps S14 to S15]
Next, the control unit 14 operates the switching drive unit 30 of the switching unit 23 to rotate the partition unit 27 around the axis of the rotation shaft 26, and thereby the upstream conveyance path 17 (fourth upstream conveyance path 17 d). And the conveyance path 19 for next processes among the downstream conveyance paths 18 is connected (S14). Thereby, the communication between the upstream conveyance path 17 and the disposal conveyance path 20 in the downstream conveyance path 18 is blocked.
Moreover, the control part 14 opens the exit side can stopper 24 (S15). That is, the gate stopper 28 of the outlet side can stopper 24 is retracted from the upstream side conveyance path 17 (fourth upstream side conveyance path 17d), and conveyance of the can P toward the downstream side conveyance path 18 is resumed.

  According to the can manufacturing apparatus 1 of the present embodiment described above, since the first detection means 21 that detects the can W held by the supply wheel 10 is provided, the can is transferred from the supply wheel 10 to the holding table 3. The quantity of cans W can be counted. Moreover, since the 2nd detection means 22 which detects the can P which the discharge wheel 11 hold | maintains is provided, the quantity of can P delivered to the discharge wheel 11 from the holding table 3 can be counted. That is, by counting the number of cans W supplied to the holding table 3 and the number of cans P discharged from the holding table 3, the situation of the cans W processed in the holding table 3 can be recognized. It is.

Specifically, when an abnormality or the like occurs in the can manufacturing apparatus 1 and the apparatus is stopped, the control unit 14 holds the holding table 3 based on the detection results of the first detection means 21 and the second detection means 22. It is possible to recognize the total number of cans W being processed, the processing position of each can W, and the like.
As a result, when the operation of the apparatus is resumed, the position of the can W that has become defective because the holding table 3 has not been processed at a predetermined speed (steady stroke speed during continuous operation) is specified. Or the quantity of defective cans W can be recognized. In other words, the non-defective can W that has been processed at a predetermined speed in the holding table 3 and the one that has been processed at a speed slower than the predetermined speed have little influence on the processing accuracy, and the subsequent processing, etc. It is possible to specify the position of a good can W with sufficient processing accuracy, and to recognize the number of good cans W and the like.
In addition, it can be recognized at which timing the defective can W and the non-defective can W are discharged from the holding table 3 by the discharge wheel 11 and delivered to the conveying means 13.

  In addition, when the operation of the apparatus is resumed, the determination as to whether or not the reciprocating speed of the machining table 2 has reached a predetermined speed is described in, for example, Japanese Patent Application Laid-Open No. 2006-150425. As described above, it may be performed based on the detection result of the encoder that detects the number of rotations of the drive motor 34, or, for example, empirically, when a predetermined number of strokes is reached after restarting operation or for a predetermined time When elapses, it may be determined that a predetermined speed has been reached.

In the present embodiment, among the cans P discharged from the holding table 3 by the discharge wheel 11, when the good can P is transported by the transport means 13, the control unit 14 operates the switching unit 23. The non-defective can P is transported to the transport path 19 for the next process. When the defective can P is conveyed by the conveying means 13, the control unit 14 operates the switching unit 23 to convey the defective can P to the disposal conveyance path 20.
That is, when the apparatus in the stopped state is operated again, the plurality of cans W (P) held on the holding table 3 are not all discarded, but out of these cans W (P), defective cans Only P is discarded, and the non-defective can P can be transported to the next process without being discarded.

  As described above, according to the present embodiment, when the operation is resumed from the stop state of the apparatus, among the cans W held on the holding table 3, defective products can be reliably discarded, and non-defective products are discarded wastefully. It can be transferred to the next process without increasing the product yield and the number of production cans can be increased.

In the present embodiment, the shooter 15 that supplies the can W to the supply wheel 10 is provided with an entry side can stopper 16 that stops the supply of the can W to the supply wheel 10.
For this reason, for example, when it is desired to stop the apparatus, such as when changing the type of can W (P) to be made, the entry side can stopper 16 is activated in advance to stop the supply of the can W to the supply wheel 10. Can be made. Thereby, since supply of can W from supply wheel 10 to holding table 3 is also stopped, all cans W which holding table 3 holds can be paid out (all cans W can be discharged by discharge wheel 11). . If all the cans W are paid out from the holding table 3 and then the apparatus is stopped, when the apparatus is restarted, no defective cans W (P) are produced, and no waste occurs.

  At this time, since the first detection means 21 and the second detection means 22 are provided in the can manufacturing apparatus 1, the control unit 14 can recognize that all the cans W have been paid out from the holding table 3. . Therefore, the control unit 14 can stop the apparatus immediately after all the cans W are paid out from the holding table 3, for example, and no loss occurs from the point of operation of the equipment.

  Further, for example, when a large amount of can P is stocked and crowded in the post-process of can manufacturing apparatus 1, the supply of can W to supply wheel 10 is stopped by entry-side can stopper 16, so that the apparatus is The can can be temporarily stopped without stopping.

Moreover, in this embodiment, since the conveyance means 13 is provided with the exit side can stopper 24 which is arrange | positioned in the upstream of the conveyance direction of the can P rather than the switching part 23 and stops conveyance of the can P, the following effect is obtained. Play.
That is, in this case, while the switching unit 23 is operated by the control unit 14, the conveyance of the can P can be stopped by the outlet side can stopper 24 upstream of the switching unit 23. Accordingly, the can P passes through the switching unit 23 and is sent to the unintended transport path 19 or 20 during the operation of the switching unit 23, or the can P moves to the switching unit 23 during the operation of the switching unit 23. It is possible to prevent the switching operation of the transport paths 19 and 20 from being affected by being caught between the partition portion 27 and the inner wall of the transport guide.

  Thereby, only the non-defective can P can be reliably transported to the transport path 19 for the next process, and the defective can P can be transported to the transport path 20 for disposal. Therefore, the quality of the can P of the product to be sent to the next process (post-process) is stabilized, and it is prevented that the good can P is wasted.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, an example in which the can manufacturing apparatus 1 is provided with the entry-side can stopper 16 and the exit-side can stopper 24 has been described. However, the present invention is not limited to this, and the entry-side can stopper 16 is provided. And either or both of the outlet side can stoppers 24 may not be provided.

  Further, in the above-described embodiment, the configuration in which the machining table 2 is reciprocated in the direction of the table axis TA with respect to the holding table 3 by the crank mechanism 8 has been described, but other than the crank mechanism 8, for example, a linear motor mechanism or the like The reciprocating mechanism may be used.

  In the above-described embodiment, during the description of the apparatus control method when the can manufacturing apparatus 1 is restarted, in steps S07 to S08 in the flowcharts of FIGS. 4 and 5, “When the control unit 14 stops the apparatus. Out of the cans (memory cans) W, P in the apparatus stored in FIG. 2, when the first can P located on the most downstream side in the transfer direction passes through the third detection means 33 (S07), the exit side The can stopper 24 is closed (S08), that is, the gate stopper 28 of the outlet can stopper 24 is advanced onto the upstream conveyance path 17 and the conveyance of the can P toward the downstream conveyance path 18 is stopped. Although an example was given, it is not limited to this.

  Specifically, for example, when a non-defective can P is delivered from the holding table 3 to the discharge wheel 11 and the apparatus is stopped due to an abnormality of the apparatus, the non-defective can P is placed on the discharge wheel 11. One or more will be held. That is, among the plurality of recesses provided on the outer peripheral surface of the discharge wheel 11, the recesses are located on the upstream side in the transfer direction of the can P relative to the second detection means 22 (on the opposite side to the wheel rotation direction R3). The can P is a good product. Of the cans W held by the chuck 7 of the holding table 3, the cans W that have been completely processed and disposed at a position immediately before being delivered to the discharge wheel 11 are similarly good. In consideration of the number (N) of these non-defective cans W and P, the following control may be performed.

  That is, in the above-described steps S07 to S08, “the control unit 14 is upstream from the can P located on the most downstream side in the transfer direction among the cans (memory cans) W and P in the device stored when the device is stopped. When the (N + 1) can P (that is, the defective first can P) passes through the third detection means 33 (S07), the exit can stopper 24 is closed (S08). That is, the gate stopper 28 of the outlet side can stopper 24 is advanced on the upstream side conveyance path 17 to stop conveyance of the can P toward the downstream side conveyance path 18. In this case, the effect that the non-defective can P can be transported to the next process without being wasted is further enhanced.

  Further, in FIG. 2 used in the above-described embodiment, the first detection unit 21 is disposed below the supply wheel 10 and the second detection unit 22 is disposed obliquely below the discharge wheel 11. The arrangement positions of the first and second detection means 21 and 22 are not limited to the example shown in FIG.

Specifically, in the example of FIG. 2, among the plurality of recesses on the outer peripheral surface of the supply wheel 10, the recess disposed opposite to the opening of the shooter 15 along the wheel rotation direction R <b> 2 and the delivery of the holding table 3 to the chuck 7. The first detection means 21 is disposed opposite to a recess located in the middle portion (a recess located at the lowest end of the supply wheel 10 in FIG. 2) between the recess located in the portion (directly above the chuck 7). ing. Instead of this, for example, among the plurality of recesses on the outer peripheral surface of the supply wheel 10, a recess disposed opposite to the opening of the shooter 15, a recess positioned at a delivery portion to the chuck 7 of the holding table 3, or The 1st detection means 21 may be opposingly arranged with respect to the recessed part located in the intermediate part other than the above.
Moreover, the 1st detection means 21 does not need to be arrange | positioned facing the recessed part of the outer peripheral surface of the supply wheel 10, since it should just be possible to detect the can W which the supply wheel 10 hold | maintains.

In the example of FIG. 2, among the plurality of recesses on the outer peripheral surface of the discharge wheel 11, a recess positioned on the receiving portion from the chuck 7 of the holding table 3 along the wheel rotation direction R <b> 3 (directly above the chuck 7), and the conveyance A recess located at an intermediate portion between the opening of the means 13 (the upper end of the first upstream conveyance path 17a in FIG. 2) and the recess located in the middle (in FIG. 2, the lowermost recess of the discharge wheel 11) On the other hand, the second detection means 22 is disposed opposite to the concave portion adjacent to the wheel rotation direction R3 on the opposite side. Instead of this, for example, among the plurality of recesses on the outer peripheral surface of the discharge wheel 11, a recess located in the receiving portion from the chuck 7 of the holding table 3, a recess disposed opposite to the opening of the conveying means 13, or The second detection means 22 may be disposed so as to face the concave portion located in the intermediate portion other than the above.
Moreover, the 2nd detection means 22 should just be able to detect the can P which the discharge wheel 11 hold | maintains, Therefore The 2nd detection means 22 does not need to be opposed to the recessed part of the outer peripheral surface of the discharge wheel 11. FIG.

  In the above-described embodiment, the can manufacturing apparatus 1 is exemplified by the bottle can manufacturing apparatus that manufactures the bottle can P by performing various processes on the bottomed cylindrical can W. However, the present invention is not limited thereto. Is not to be done. That is, the can manufacturing apparatus 1 may be an aerosol can manufacturing apparatus that manufactures an aerosol can P by performing various processes on the can W, or manufactures a can P other than a bottle can and an aerosol can. The can manufacturing apparatus 1 may be used. Further, the can W is not limited to a bottomed cylindrical shape, but may be a simple cylindrical shape having no bottom wall.

  In the above-described embodiment, the example in which the storage unit, the determination unit, and the control unit are integrally provided in the control unit 14 is described. However, the present invention is not limited to this. At least one of the storage unit, the determination unit, and the control unit may be provided separately from the control unit 14.

  In addition, in the range which does not deviate from the meaning of this invention, you may combine each structure (component) demonstrated by the above-mentioned embodiment, a modification, and a remark etc., addition of a structure, omission, substitution, others It can be changed. Further, the present invention is not limited by the above-described embodiments, and is limited only by the scope of the claims.

  According to the can manufacturing apparatus of the present invention, when the operation is resumed from the stop state of the apparatus, among the cans held on the holding table, defective products can be reliably discarded, and non-defective products are discarded wastefully. It can be transported to the next process, and the product yield can be improved and the number of production cans can be increased. Therefore, it has industrial applicability.

DESCRIPTION OF SYMBOLS 1 Can manufacturing apparatus 2 Processing table 3 Holding table 4 Apparatus main body 5 Shaft part 6 Processing tool 8 Crank mechanism (reciprocating mechanism)
DESCRIPTION OF SYMBOLS 9 Table index mechanism 10 Supply wheel 11 Discharge wheel 12 Wheel index mechanism 13 Conveyance means 14 Control part 15 Shooter 16 Entrance side can stopper 19 Conveyance path for next process (conveyance path for subsequent processes)
20 Disposal path 21 First detection means 22 Second detection means 23 Switching portion 24 Outlet can stopper DA Wheel shaft of the discharge wheel P Bottle can (product can)
SA Wheel axis of the supply wheel TA Table axis W Can (intermediate molded body can. Workpiece)

Claims (3)

A holding table that holds a plurality of cans and rotates intermittently around a table axis;
A plurality of processing tools that perform processing on the can, provided opposite to the holding table from the table axis direction, and a processing table that reciprocates in the table axis direction,
A supply wheel that rotates intermittently around a wheel axis in synchronization with intermittent rotation around the table axis of the holding table, and supplies a can to the holding table;
A discharge wheel that rotates intermittently around the wheel axis in synchronization with intermittent rotation around the table axis of the holding table, and discharges the can from the holding table;
First detection means for detecting a can held by the supply wheel;
Second detection means for detecting the can held by the discharge wheel;
Of the cans discharged by the discharge wheel, a transport path for the next process in which non-defective products are transported, a transport path for disposal in which defective products are transported, and a branch portion between the transport path for the next process and the transport path for disposal A transfer unit provided with a switching unit for switching the transfer path,
A can manufacturing apparatus comprising: a control unit that operates the switching unit based on detection results of the first detection unit and the second detection unit. The can manufacturing apparatus according to claim 1,
A shooter for supplying a can to the supply wheel;
A can manufacturing apparatus comprising: an entrance side can stopper provided on the shooter and configured to stop the supply of the can to the supply wheel. The can manufacturing apparatus according to claim 1 or 2,
The said manufacturing means is equipped with the output side can stopper which is arrange | positioned in the upstream of the conveyance direction of a can rather than the said switch part, and stops conveyance of a can, The can manufacturing apparatus characterized by the above-mentioned.

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