JP7033893B2 - Can manufacturing equipment - Google Patents

Description

The present invention relates to a can manufacturing apparatus for manufacturing a bottle can, an aerosol can, or the like by processing a tubular body (work).

Conventionally, as a can manufacturing apparatus for manufacturing a bottle can or an aerosol can made of an aluminum alloy material or the like, for example, the one described in Patent Document 1 below is known.

The can manufacturing device is supported by the device body, a holding table that is supported by the device body and holds a tubular body (work), and a shaft portion that penetrates the holding table in the table axial direction, and is also supported by the device body. The holding table is provided with a processing table which is arranged so as to face each other from the direction of the table axis and is provided with a processing tool for processing a cylindrical body.
The holding table is generally called a turntable or an index table, and the machining table is generally called a die table. These tables have a disk shape or a circular ring shape, and their central axes (table axes) extend in the horizontal direction, and the central axes of each table are arranged coaxially with each other.

A plurality of tubular bodies such as DI cans, which are workpieces, are held on the holding table along the circumferential direction of the table around the table axis. Specifically, the holding table is provided with a plurality of chucks (cylindrical body holders) capable of holding the tubular body arranged in the circumferential direction of the table, and the tubular body has an open end portion of the processing table. It is held by the chuck in a posture toward.
A plurality of processing tools for processing a cylindrical body are arranged on the processing table along the circumferential direction of the table. Specifically, the machining table is formed with a plurality of mounting holes penetrating in the table axial direction arranged in the circumferential direction of the table, and the plurality of machining tools are mounted in these mounting holes in the order of machining into a cylindrical body. Be done.

The plurality of machining tools include a die machining tool and a rotary machining tool.
The die processing tool moves in the direction of the central axis (direction parallel to the table axis) of the cylindrical body, and is used for drawing to reduce the diameter of the peripheral wall of the cylindrical body and expanding the diameter of the peripheral wall. Apply die processing. The rotation processing tool moves around the central axis of the tubular body, and the peripheral wall of the tubular body is trimmed, threaded, curled, and throttled (curled) by the rotational movement around the central axis. Etc. are subjected to rotation processing.

Further, the main body of the can manufacturing apparatus is provided with a crank mechanism, a table index mechanism and a wheel index mechanism.
The holding table and the machining table are repeatedly moved toward and separated from each other in the table axial direction by the crank mechanism, and are intermittently rotated relative to each other in the table circumferential direction by the table index mechanism. Specifically, the machining table moves closer to and further away from the holding table in the direction of the table axis, and during one stroke (reciprocating movement) of the approaching separation, the holding table moves closer to the machining table around the table. It reciprocates by a predetermined amount in the direction.

Then, the cylindrical body (work) is processed for each stroke when the tables are brought close to each other, and the tubular body is moved to the processing position by the next processing tool.
By repeating this operation, the tubular body held by the holding table is sequentially machined by a plurality of machining tools provided on the machining table, and when a series of machining is completed, it is expected. Cans (bottle cans, aerosol cans, etc.) having such a shape are being manufactured.

In addition, the can manufacturing device includes a supply wheel (in-feed wheel) that supplies a tubular body to the holding table, and a discharge wheel (discharge wheel) that discharges the processed tubular body (can) from the holding table. ing.
The supply wheel and the discharge wheel are supported by the main body of the apparatus by arranging each central axis (wheel axis) in parallel with the table axis. On the outer periphery of each of the supply wheel and the discharge wheel, a plurality of concave pockets capable of holding the peripheral wall of the cylindrical body are formed at intervals in the circumferential direction. The supply wheel and discharge wheel are intermittently rotated around each wheel axis by the wheel index mechanism in a direction that synchronizes with the intermittent rotation around the table axis of the holding table and that rotates in the direction opposite to the rotation direction of the holding table. It can be rotated.

Then, when the supply wheel rotates intermittently and the tubular body held in the pocket of the supply wheel is arranged at the position corresponding to the chuck of the holding table (immediately above the chuck), the push-in provided in the processing table is performed. The portion pushes the tubular body toward the holding table side, and the tubular body is transferred from the pocket to the chuck and held by the chuck.
Further, when the tubular body held by the chuck of the holding table is placed at the position corresponding to the pocket of the discharge wheel (immediately below the pocket) after all the processing is completed, the piston portion provided on the holding table is formed. The tubular body is pushed toward the discharge wheel side, and the tubular body is handed over from the chuck to the pocket and held in the pocket.

Japanese Unexamined Patent Publication No. 2005-329424

However, the conventional can manufacturing apparatus has the following problems.
The can manufacturing device is equipped with a shooter that supplies a tubular body to the supply wheel. When the tubular body is delivered from this shooter to the supply wheel, the tubular body may be damaged by rubbing the tubular body on a part other than the pocket on the outer circumference of the supply wheel, or the tubular body may be held in the pocket. It may fall without being used, or it may get caught between the outer circumference of the wheel and the guide member on the radial outer side thereof.

The present invention has been made in view of such circumstances, and a tubular body (work) can be delivered to the supply wheel at an appropriate timing, whereby the tubular body is damaged, dropped, or bitten. It is an object of the present invention to provide a can manufacturing apparatus capable of stably manufacturing high-quality cans by preventing such problems.

The can manufacturing apparatus according to one aspect of the present invention is provided with a holding table that holds a tubular body and intermittently rotates around a table axis, and a processing tool for processing the tubular body. A processing table arranged opposite to the table axis direction, a crank mechanism for reciprocating the processing table in the table axis direction with respect to the holding table, and a pocket capable of holding a tubular body are provided on the outer periphery to hold the processing table. A supply wheel that intermittently rotates around the wheel axis in synchronization with the intermittent rotation around the table axis to supply the tubular body to the holding table, and supply and stop of the tubular body to the supply wheel. The control unit includes a stopper for performing the operation, a detecting means capable of detecting a crank angle around a drive shaft of the crank mechanism, and a control unit for operating the stopper based on the crank angle detected by the detecting means. Is in the range of the allocation angle including the top dead point, which is the position where the processing table is most separated from the holding table in the table axis direction, when the crank angle detected by the detection means is within the range of the allocation angle including the top dead point. The stopper stops the supply of the tubular body to the supply wheel, and the crank angle detected by the detection means is the position where the processing table is closest to the holding table in the table axial direction. When it is in the range of the stopping angle including the bottom dead point, it is characterized in that the supply stop state of the tubular body to the supply wheel by the stopper is released .

In the can manufacturing apparatus of the present invention, the holding table and the supply wheel rotate intermittently in synchronization with each stroke in which the crank mechanism reciprocates the processing table in the table axis direction. That is, the stroke of the crank mechanism, the intermittent rotation around the table axis of the holding table, and the intermittent rotation around the wheel axis of the supply wheel are synchronized (synchronized) with each other. Specifically, the holding table and the supply wheel are intermittently rotated according to the crank angle of the crank mechanism.

The crank angle represents an angular position around the central axis while the crank axis of the crank mechanism makes one rotation (360 ° rotation) about the central axis of the drive shaft. For example, the above-mentioned Patent Document 1 (Japanese Patent Laid-Open No. It corresponds to the input rotation angle shown in FIG. 5 of Japanese Patent Application Laid-Open No. 2005-329424).
The crank angle includes the "stationary angle", which is an angle range in which the holding table is not rotated around the table axis with respect to the machining table, and the angle at which the holding table is rotated around the table axis with respect to the machining table. The range "allocation angle" and is included.

The stop angle includes the position where the machining table is closest to the holding table (bottom dead center; crank angle = 180 °), and within this stop angle, the machining table is the table axis with respect to the holding table. While being moved closer to each other in the direction, various processing is performed on the tubular body (work) by a processing tool.
The allocation angle includes the position where the machining table is most distant from the holding table (top dead center. Crank angle = 0 °), and within this allocation angle, the holding table is the table axis with respect to the machining table. Along with being rotated and moved around, a processing tool for performing the next processing on the tubular body is arranged facing each other.
Then, when the crank angle is the stationary angle, the rotational movement of the supply wheel is also stopped in synchronization with the holding table. Further, when the crank angle is the allocation angle, the supply wheel also rotates and moves in synchronization with the holding table.

In the present invention, a stopper for supplying and stopping the supply of the tubular body to the supply wheel is provided, and the control unit operates this stopper based on the crank angle detected by the detecting means. This produces the following excellent effects.
That is, when the detected crank angle is within the range of the allocation angle (that is, while the supply wheel is rotating), the stopper can stop the supply of the tubular body to the supply wheel. Also, if the detected crank angle is within the range of the stopping angle (that is, while the rotation of the supply wheel is stopped), the supply stop state of the tubular body by the stopper is released and the pocket of the supply wheel is released. The tubular body can be reliably delivered.

Specifically, in the conventional example different from the present invention, since the tubular body is supplied to the supply wheel while the supply wheel is rotating, the tubular body rubs against a portion other than the pocket on the outer periphery of the supply wheel. In some cases, the tubular body may be damaged, the tubular body may fall without being held in the pocket, or the wheel may be caught between the outer circumference of the wheel and the guide member on the radial outer side thereof.
On the other hand, according to the present invention, since the tubular body can be supplied to the supply wheel while the rotation of the supply wheel is stopped, the tubular body can be reliably held in the pocket of the supply wheel. Therefore, problems such as damaging, dropping, or biting the tubular body are stably prevented.

From the above, according to the present invention, a tubular body (work) can be delivered to the supply wheel at an appropriate timing, thereby preventing damage, dropping, biting, etc. of the tubular body, and a high-quality can. Can be stably manufactured.

Further, in the can manufacturing apparatus, the crank mechanism includes a drive shaft, a crank shaft connected to the drive shaft and rotated around the central axis of the drive shaft with the rotation of the drive shaft, and the crank shaft. It is preferable that the detection means can detect the crank angle, which is the circumferential position of the crank shaft along the central axis of the drive shaft. ..

Further, in the can manufacturing apparatus, the control unit supplies the tubular body to the supply wheel by the stopper when the crank angle is within a predetermined range including the bottom dead center within the range of the stopping angle. It is preferable to release the stopped state.

In this case, the supply stop state of the tubular body to the supply wheel by the stopper is released (cylindrical to the supply wheel) within a predetermined range including the bottom dead center (crank angle = 180 °) of the stop angle. The body is supplied). That is, since the cylindrical body is supplied to the supply wheel at the median value of the angle range of the stopping angle, the effect that the tubular body can be reliably delivered to the pocket of the supply wheel described above is more stable. It becomes a thing.

Further, in the can manufacturing apparatus, when the control unit receives an abnormal signal of at least one of the can manufacturing apparatus, the equipment of the pre-process and the equipment of the post-process of the can manufacturing apparatus, the stopper causes the said. It is preferable to stop the supply of the tubular body to the supply wheel.

In this case, when an abnormality occurs in the can manufacturing equipment, the equipment in the front-end process and the equipment in the back-end process of the can manufacturing equipment, the stopper stops the supply of the tubular body to the supply wheel. This prevents a large amount of defective tubular bodies from being formed and a large load on the device. Specifically, the control unit is abnormal due to the occurrence of an abnormality even when the supply stop state of the tubular body to the supply wheel by the stopper is released (that is, even when the tubular body is being supplied to the supply wheel). When a signal is received, the stopper stops the supply of the tubular body to the supply wheel.
The above-mentioned "abnormality" includes, for example, a jam (clogging due to a molding defect of a tubular body, etc.) in the can manufacturing apparatus, or a failure of equipment in a post-process (downstream side of the manufacturing process) of the can manufacturing apparatus. This includes the case where the stock of the tubular body (work) is exhausted in the pre-process (upstream side of the manufacturing process) of the can manufacturing apparatus, the case where the line stop control is activated in the pre-process and the post-process, and the like.

Further, in the can manufacturing apparatus, it is preferable that the detection means is an angle position detection sensor.

In this case, since the detection means is, for example, an angle position detection sensor (rotation angle sensor) such as a rotary encoder or a resolver, the detection means can be configured with high accuracy and compactness, easily incorporated into the device, and easily available and easy to handle. Is good.
Then, in order to make the control unit function by such an angle position detection sensor, for example, it is preferable to use an electronic cam switch or the like.

According to the can manufacturing apparatus of the present invention, a tubular body (work) can be delivered to the supply wheel at an appropriate timing, thereby preventing damage, dropping, biting, etc. of the tubular body and achieving high quality. It is possible to stably manufacture simple cans.

It is a side view which shows the schematic structure of the can manufacturing apparatus which concerns on one Embodiment of this invention. It is a figure which shows the II-II cross section of FIG. It is a figure explaining the crank angle (stop angle, allocation angle) of a processing table. It is a graph which shows the relationship between the crank angle (stop angle, allocation angle) and the displacement amount of a processing table. It is a figure which simplifies the crank mechanism, the table index mechanism, the wheel index mechanism, the detection means, the stopper, the control part and the like of the can manufacturing apparatus which concerns on one Embodiment of this invention.

Hereinafter, the can manufacturing apparatus 1 according to the embodiment of the present invention will be described with reference to the drawings.
In FIGS. 1 and 2, the can manufacturing apparatus 1 of the present embodiment has various bottle nets including die processing and rotation processing for a bottomed tubular tubular body (can of an intermediate molded body) W which is a work. It is a so-called bottle necker (bottle can manufacturing device) that manufactures a bottle can (product can) P having a desired shape by subjecting it to a king process.

The tubular body W supplied as a work 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 made by subjecting a disk-shaped blank punched from a plate material such as an aluminum alloy material to a cupping process (squeezing process), a DI process (squeezing ironing process), a trimming process, a printing process, a painting process, etc. It is formed in the shape of a bottom cylinder.

The tubular body W includes a peripheral wall (can body) having a cylindrical shape and a bottom wall (can bottom) having a substantially disk shape. The central axis of the peripheral wall of the tubular body W and the central axis of the bottom wall are arranged coaxially with each other, and in the present embodiment, these common axes are referred to as the central axis (can axis) of the tubular body W. By applying the bottle necking process to the tubular body W, the central axis of the tubular body W is located between the body portion (maximum diameter portion) and the mouth portion (open end portion, minimum diameter portion) on the peripheral wall. A tapered neck is formed that gradually shrinks in diameter from the body to the mouth along the direction.
The bottle can P manufactured by processing the tubular body W by the can manufacturing apparatus 1 is filled with contents such as beverages in a subsequent process, and a cap is screwed.

As shown in FIGS. 1 and 2, the can manufacturing apparatus 1 is supported by the apparatus main body 4 and the apparatus main body 4, and is provided with a chuck (cylindrical body holder) 7 for holding the tubular body W. The table 3 and the holding table 3 are supported by the apparatus main body 4 via a shaft portion 5 penetrating the table axis TA direction, and are arranged on the holding table 3 facing the table axis TA direction with respect to the cylindrical body W. It is provided with a processing table 2 provided with a processing tool 6 for processing. In the processing table 2 and the holding table 3, their respective central axes (table axes TA) extend in the horizontal direction, and these central axes are arranged coaxially with each other.

Further, as shown in FIGS. 1 to 3 and 5, the can manufacturing apparatus 1 drives a crank mechanism 8 for reciprocating the processing table 2 in the table axis TA direction with respect to the holding table 3 and a crank mechanism 8. It is provided with a table index mechanism 9 for intermittently rotating and moving the holding table 3 around the table shaft TA with respect to the machining table 2 according to the crank angle around the shaft 16, and a drive motor (drive source) 11. .. 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. Further, the holding table 3 intermittently rotates around the table axis TA. The holding table 3 intermittently rotates and moves around the table axis TA with respect to the processing table 2 and the apparatus main body 4. The drive motor 11 is, for example, an inverter motor.

Further, the can manufacturing apparatus 1 includes a supply wheel 10 for supplying the tubular body W to the holding table 3, a discharge wheel 14 for discharging the processed tubular body W (bottle can P) from the holding table 3, and a holding table 3. The supply wheel 10 and the discharge wheel 14 are discharged from the holding table 3 by the wheel index mechanism 15 that intermittently rotates around each wheel shaft SA and DA, and the discharge wheel 14 in synchronization with the intermittent rotation around the table shaft TA. It is provided with a transport means 12 for transporting the bottle can P. That is, the supply wheel 10 intermittently rotates around the wheel shaft SA in synchronization with the intermittent rotation around the table shaft TA of the holding table 3. The discharge wheel 14 intermittently rotates around the wheel shaft DA in synchronization with the intermittent rotation around the table shaft TA of the holding table 3.

In FIG. 5, the drive motor 11, the crank mechanism 8, the table index mechanism 9, and the wheel index mechanism 15 are mechanically connected to each other by a gear, a belt, a joint, or the like so as to be synchronized with each other. That is, the crank mechanism 8, the table index mechanism 9, and the wheel index mechanism 15 are driven in synchronization with each other by the rotational driving force of the drive motor 11.

The definition of the direction (direction) used in this embodiment is as follows.
The direction along the table axis TA (the direction in which the table axis TA extends) is called the table axis TA direction.
Further, the direction orthogonal to the table axis TA is called the table radial direction. Of the table radial directions, the direction away from the table axis TA is referred to as the outside of the table radial direction, and the direction approaching the table axis TA is referred to as the inside of the table radial direction.
Further, the direction of orbiting around the table axis TA is called the table circumferential direction. Of the table circumferential directions, the direction in which the holding table 3 is intermittently rotated with respect to the machining table 2 is referred to as the holding table rotation direction R1, and the rotation direction opposite to this is referred to as the side opposite to the holding table rotation direction R1. ..

The holding table rotation direction R1 is the same as the direction in which the plurality of machining tools 6 described later in the machining table 2 are arranged in the circumferential direction of the table in the order of machining into the tubular body W. Therefore, the holding table rotation direction R1 can be said to be the downstream side (machining order direction) of the machining order to the tubular body W, and the side opposite to the holding table rotation direction R1 is the machining order to the tubular body W. It can be said that it is on the upstream side of.

In FIGS. 1 to 3 and 5, the holding table 3 and the machining table 2 repeatedly move toward and away from each other in the table axis TA direction by the crank mechanism 8, and move in the table circumferential direction by the table index mechanism 9. It is intermittently rotated relative to each other. Specifically, the machining table 2 moves closer to and further away from the holding table 3 in the direction of the table axis TA, and during one stroke (reciprocating movement) of the approaching separation, the machining table 2 moves closer to and further from the machining table 2. 3 rotates and moves (intermittently rotates) by a predetermined amount in the circumferential direction of the table.

Then, the tubular body W held by the chuck 7 of the holding table 3 is machined by the machining tool 6 provided on the machining table 2 for each stroke in which the machining table 2 and the holding table 3 are brought close to each other and separated from each other. Then, the holding table 3 moves the tubular body W to the next (other) machining position by the machining tool 6 toward the downstream side of the machining order (holding table rotation direction R1).
By repeating this operation, the tubular body W held by the holding table 3 is sequentially machined by a plurality of machining tools 6 provided on the machining table 2, and when a series of machining is completed. Therefore, a 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. A tubular body W is held in each of these chucks 7, and the open end portion of the held tubular body W opens toward the processing table 2. That is, the holding table 3 holds a plurality of tubular bodies 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 cylindrical body W held by the holding table 3 are arranged on the processing table 2 along the circumferential direction of the table. These machining tools 6 are arranged along the circumferential direction of the table on the outer peripheral portion of the surface of the machining table 2 facing the holding table 3, and the tables are arranged with respect to the plurality of cylindrical bodies W held by the holding table 3. They are arranged so as to face each other from the axis TA direction.
Further, the machining tool axis (central axis) of the machining tool 6 of the machining table 2 and the central axis of the cylindrical body W facing the machining tool 6 in the holding table 3 (that is, the central axis of the chuck 7) are coaxial with each other. Is placed in. Then, in a state where the central axis of the cylindrical body W and the processing tool axis are aligned with each other, the cylindrical body W is processed by the processing tool 6.

The processing table 2 is formed with a plurality of mounting holes penetrating in the TA direction of the table axis arranged in the circumferential direction of the table. The plurality of processing tools 6 are attached to these mounting holes in the order of processing into the cylindrical body W.

The plurality of machining tools 6 include a die machining tool and a rotary machining tool. In the present embodiment, a plurality of die processing tools and a plurality of rotation processing tools are detachably arranged in the plurality of mounting holes of the processing table 2 in the order of processing into the tubular body W. It should be noted that some of the plurality of mounting holes may be empty spaces in which the machining tool 6 cannot be mounted. In addition, oiling tools are arranged in some of the plurality of mounting holes.

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

The rotation processing tool moves around the central axis of the cylindrical body W, and the peripheral wall (can body) of the tubular body W is trimmed, threaded, curled, and rotated by the rotational operation around the central axis. Rotational processing such as throttle (curl crushing) processing is performed. One type of rotation processing is performed on the cylindrical body W by one rotation processing tool.

The shaft portion 5 is integrally provided on the machining table 2 and extends on the table shaft TA, penetrates the holding table 3 in the table shaft TA direction, and can move in the table shaft TA direction with respect to the holding table 3. Is. The shaft portion 5 is slidably supported by the apparatus main body 4 in the TA direction of the table shaft, and the end portion on the side opposite to the processing table 2 along the TA direction of the table shaft is the connecting rod 18 described later of the crank mechanism 8. Is linked to.

In FIGS. 3 and 5, the crank mechanism 8 is connected to the drive shaft 16 to which the rotational drive force from the drive motor 11 is input, and is connected to the drive shaft 16, and is the center of the drive shaft 16 as the drive shaft 16 rotates. It has a crank shaft 17 that is rotated around a shaft O, and a connecting rod 18 that connects the crank shaft 17 and the shaft portion 5. That is, the connecting rod 18 connects the machining table 2 and the crank shaft 17 via the shaft portion 5. The crank shaft 17 rotates around the central axis O of the drive shaft 16 at a constant angular velocity.
The crank mechanism 8 converts the rotary motion around the central axis O of the drive shaft 16 input from the drive motor 11 to the drive shaft 16 into a linear motion in the TA direction of the table shaft and outputs it to the shaft portion 5.

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

In FIG. 2, the supply wheel 10 is called an in-feed wheel and has a substantially cylindrical shape. The supply wheel 10 receives the tubular body W supplied to the shooter 13 described later from the outside (previous process) of the can manufacturing apparatus 1, and delivers the tubular body W to the holding table 3.
The discharge wheel 14 is called a discharge wheel and has a substantially cylindrical shape. The discharge wheel 14 receives the cylindrical body W (bottle can P) processed by the can manufacturing apparatus 1 from the holding table 3 and delivers (discharges) it to the transport means 12. The transport means 12 transports the bottle can P toward the outside (post-process) of the can manufacturing apparatus 1.

The supply wheel 10 is supported by the apparatus main body 4 by arranging its central axis (wheel axis) SA in parallel with the table axis TA. The supply wheel 10 is rotated in the wheel rotation direction R2 around the wheel axis SA.
The discharge wheel 14 is supported by the apparatus main body 4 by arranging its central axis (wheel axis) DA in parallel with the table axis TA. The discharge wheel 14 is rotated in the wheel rotation direction R3 around the wheel axis DA.

A plurality of concave pockets 23 capable of holding the peripheral wall of the tubular body W are provided on the outer periphery of the supply wheel 10 at equal intervals in the circumferential direction. Further, on the outer periphery of the discharge wheel 14, a plurality of concave pockets 24 capable of holding the peripheral wall of the tubular body W (bottle can P) are provided at equal intervals in the circumferential direction. In FIG. 2, some of the pockets 23 and 24 are not shown.

These pockets 23 and 24 are formed in a concave curved surface shape in which the cross section perpendicular to the wheel shafts SA and DA has a concave arc shape, corresponding to the peripheral wall of the tubular body W having a cylindrical shape. .. Further, a suction hole communicating with an air suction source (not shown) is opened on the inner surface of the pockets 23 and 24. The pockets 23 and 24 can hold the tubular body W by the air suction force of the air suction source acting on the peripheral wall of the tubular body W through the suction holes.

Further, the can manufacturing apparatus 1 is provided in the shooter 13 for supplying the tubular body W transferred from the outside of the can manufacturing apparatus 1 (equipment in the previous process) to the supply wheel 10 and the shooter 13, and is provided on the shooter 13 to the supply wheel 10. It is provided with a stopper 25 for supplying and stopping the supply of the tubular body W.
The shooter 13 has a cylindrical shape that opens toward the outer periphery of the supply wheel 10. In the shooter 13, the opening facing the supply wheel 10 side is arranged close to the outer periphery of the supply wheel 10, and the pocket is in a state where the rotation of the supply wheel 10 is stopped (at the timing of the stop angle DP described later). It is arranged to face the 23. A plurality of tubular bodies W transferred from the previous process to the can manufacturing apparatus 1 are housed in the shooter 13, and these tubular bodies W are moved toward the outer periphery of the supply wheel 10 by their own weight.

In FIGS. 2 and 5, the stopper 25 includes a stopper pin 26 that is brought into contact with the tubular body W, and a pin drive unit 27 that supports the stopper pin 26 so as to be able to advance and retreat toward the tubular body W. ing. The stopper 25 is arranged adjacent to the front end portion (that is, the opening of the shooter 13) of the tubular body W in the shooter 13 in the transport direction (arrangement direction). The stopper pin 26 has a tubular shape with respect to the bottom wall (can bottom) of the tubular body W located at the front end (downstream end) in the transport direction among the plurality of tubular bodies W accommodated in the shooter 13. It is moved back and forth in the central axis direction (can axis direction) of the body W, and can come into contact with the bottom wall of the cylindrical body W at its forward position. Further, the pin drive unit 27 is made of, for example, an air cylinder or the like.

Specifically, when the stopper pin 26 is moved forward by the pin drive unit 27, the tip end portion of the stopper pin 26 moves in the direction of the central axis (can axis) of the tubular body W in the bottom wall of the tubular body W. It enters the protruding annular convex portion (rim) and is brought into contact with the inner peripheral wall of the annular convex portion (for the annular convex portion and its inner peripheral wall, refer to, for example, Japanese Patent Application Laid-Open No. 2000-197938). In this way, the tip of the stopper pin 26 is abutted (hooked or locked) on the bottom wall of the tubular body W, so that the tubular body W can be moved toward the supply wheel 10 side. Suspended (regulated). Along with this, other tubular bodies W located behind (upstream side) in the transport direction from the tubular body W locked to the stopper pin 26 in the shooter 13 are also directed toward the supply wheel 10. The movement is stopped.

Further, when the tubular body W is delivered to the supply wheel 10, the stopper pin 26 is separated from the bottom wall of the tubular body W by the pin drive unit 27 and is retracted from the inside of the shooter 13. As a result, the supply stop state of the tubular body W to the supply wheel 10 by the stopper 25 is released, and the tubular body W moves toward the pocket 23 of the supply wheel 10 by its own weight.

Further, although not particularly shown, a guide member for holding the peripheral wall of the tubular body W between the supply wheel 10 and the pocket 23 is provided on the outer side in the radial direction of the supply wheel 10. Further, on the radial outer side of the discharge wheel 14, a guide member for holding the peripheral wall of the tubular body W (bottle can P) is provided between the discharge wheel 14 and the pocket 24. In these guide members, the inner peripheral surface facing inward in the radial direction has a concave arc shape centered on the wheel shafts SA and DA in a cross-sectional view perpendicular to the wheel shafts SA and DA.

In FIG. 5, the wheel index mechanism 15 has a cam structure. Due to the cam structure, the wheel index mechanism 15 rotates and stops the supply wheel 10 around the wheel shaft SA (intermittent rotation) and rotates the discharge wheel 14 around the wheel shaft 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 14 have a wheel rotation direction R2 that is synchronized with the intermittent rotation around the table axis TA of the holding table 3 and is rotated in the opposite direction to the rotation direction R1 of the holding table 3 by the wheel index mechanism 15. , R3, respectively, are intermittently rotated.
The supply wheel 10 and the discharge wheel 14 are mechanically connected by a gear or the like, and intermittently rotate around each wheel shaft SA and DA in synchronization with each other.

Specifically, in FIG. 2, the supply wheel 10 rotates intermittently, and the tubular body W held in the pocket 23 of the supply wheel 10 is arranged at a position corresponding to the chuck 7 of the holding table 3 (immediately above the chuck 7). When this is done, the pushing portion provided in the processing table 2 pushes the tubular body W toward the holding table 3, and the tubular body W is handed over from the pocket 23 to the chuck 7 to chuck. It is held at 7.
Further, the tubular body W held by the chuck 7 of the holding table 3 is transferred to the holding table rotation direction R1 for each stroke of the machining table 2, and after all machining is completed, it corresponds to the pocket 24 of the discharge wheel 14. When placed at the position (directly below the pocket 24), the piston portion provided on the holding table 3 discharges this tubular body W (bottle can P of all processed products) on the discharge wheel 14 side. While pushing toward, the tubular body W (P) is handed over from the chuck 7 to the pocket 24 and held in the pocket 24.
The bottle can P held in the pocket 24 is transferred around the wheel shaft DA with the intermittent rotation of the discharge wheel 14, is released from the pocket 24, and then is transported by the transport means 12, and the can manufacturing apparatus 1 It is transferred to the outside (equipment of the post-process).

The transport means 12 includes a transport guide and a conveyor for transporting the bottle can P, and the conveyor is driven by the conveyor drive unit to transport the bottle can P toward the downstream side in the transport direction. The conveyor is continuously provided regardless of whether the can manufacturing apparatus 1 is in an operating state (during can manufacturing in which the processing table 2 and the holding table 3 are relatively reciprocating and intermittently rotating) or in an operation stopped state. It works.

The transport means 12 is connected to an upstream transport path for transporting the bottle can P discharged from the holding table 3 by the discharge wheel 14 and a front end portion (downstream end portion in the transport direction) of the upstream transport path in the transport direction. It is provided with a downstream transport path for transporting the bottle can P transported from the upstream transport path. Although not particularly shown, the downstream transport path includes a transport path for the next process, which transports a non-defective can P to the next process (post-process) among a plurality of bottle cans P transported from the upstream transport path, and a defective product. A disposal transport path for transporting the can P to the disposal container, and the like. Further, a switching portion for switching between these transport paths is provided at the branch portion between the transport path for the next process and the transport path for disposal.

In the example shown in FIG. 2, the upstream transport path of the transport means 12 extends diagonally downward from the upper end (opening) that opens toward the pocket 24 on the outer periphery of the discharge wheel 14 that has been stopped rotating. The first upstream transport path 12a, the second upstream transport path 12b connected to the downstream end of the first upstream transport path 12a in the transport direction and extending horizontally, and the second upstream transport path 12b. A third upstream transport path 12c connected to the downstream end in the transport direction and extending upward in the vertical direction, and a fourth upstream connected to the upper end of the third upstream transport path 12c and extending horizontally. It is provided with a side transport path 12d.

In the first to third upstream transport paths 12a to 12c, the can axis of the bottle can P extends in the horizontal direction (that is, the bottle can P is in a laid state), and the bottle can P is around the can axis. It moves in a state where it can rotate freely. Further, at the connecting portion between the third upstream side transport path 12c and the fourth upstream side transport path 12d, the laid bottle can P is placed in an upright posture (that is, the bottom wall (can bottom) of the bottle can P is downward. A raising mechanism 28 is provided for raising the bottle can P so that the open end of the bottle can P is turned upward and the can shaft extends in the vertical direction).

Then, as shown in FIG. 5, the apparatus main body 4 of the can manufacturing apparatus 1 has a detecting means 19 capable of detecting the crank angle and a control for operating the stopper 25 based on the crank angle detected by the detecting means 19. A section 20 is provided.
Further, what is indicated by reference numeral 21 in FIG. 5 is a clutch and brake in which the rotational driving force of the drive motor 11 is transmitted via the belt, and what is indicated by reference numeral 22 is the rotational speed from the clutch and brake 21. Is a reduction gear pair that decelerates and increases the rotational force (torque) to be transmitted to the drive shaft 16 of the clutch mechanism 8.

The detecting means 19 can detect the crank angle which is the circumferential position of the crank shaft 17 along the central axis O of the drive shaft 16. The crank angle represents an angular position around the central axis O while the crank shaft 17 makes one rotation (360 ° rotation) about the central axis O of the drive shaft 16. In the example of this embodiment, the detection means 19 is an angle position detection sensor (rotation angle sensor) such as a rotary encoder or a resolver.

The crank angle will be described in detail.
As shown in FIGS. 3 (a), 3 (b) and 4, the range of the dwell angle DP (dwell period) is included in the entire crank angle (0 to 360 °) around the central axis O of the drive shaft 16. And the range of the allocation angle IP (index period).

The stop angle DP is an angle range in which the holding table 3 is not rotated around the table axis TA with respect to the machining table 2 by the table index mechanism 9 (the angle range of the crank angle at which the rotation of the holding table 3 is stopped). ). The stop angle DP includes a position (bottom dead center; crank angle = 180 °) at which the machining table 2 is closest to the holding table 3 in the table axis TA direction. Within the range of the retention angle DP, the machining table 2 is moved closer to the holding table 3 in the table axis TA direction, and the tubular body (work) W is subjected to various machining by the machining tool 6. ..

The allocation angle (index angle) IP is an angle range in which the holding table 3 is rotationally moved around the table axis TA with respect to the machining table 2 by the table index mechanism 9. The allocation angle IP includes a position (top dead center; crank angle = 0 °) at which the processing table 2 is most distant from the holding table 3 in the table axis TA direction. Within the range of the allocation angle IP, the machining table 2 is sufficiently separated from the holding table 3 in the table axis TA direction, and the machining tool 6 is not in contact with the cylindrical body W. Then, within the range of the allocation angle IP, the holding table 3 is rotationally moved around the table axis TA with respect to the machining table 2, and the tubular body W is held to a position facing the machining tool 6 to be subjected to the next machining. It is transferred in the table rotation direction R1.

The range of the stop angle DP is larger than the range of the allocation angle IP, and the sum of the size of the central angle in the range of the stop angle DP and the size of the central angle in the range of the allocation angle IP is 360 °. In other words, the size of the angle range of the allocation angle IP = 360 °-(the size of the angle range of the retention angle DP).
In the example of the present embodiment, in FIG. 4, the range of the stopping angle DP is a crank angle of 75 to 285 ° with the bottom dead center (crank angle 180 °) as the median, and the large angle range of the stopping angle DP. The is 210 °. The range of the allocation angle IP is a crank angle of 285 to 75 ° (0 to 75 ° and 285 to 360 °) with the top dead center (crank angle 0 ° (360 °)) as the median, and this allocation angle. The size of the angle range of IP is 150 °.

Further, the total length of the reciprocating stroke of the processing table 2 in the table axis TA direction is obtained by the difference in the distance between the top dead center and the bottom dead center along the table axis TA direction. In FIGS. 3A and 3B, what is indicated by the symbol r is the crank radius (the amount of eccentricity of the crank shaft 17 with respect to the drive shaft 16, that is, the distance between the shafts 16 and 17), and the crank radius is the crank radius. , Half of the total stroke length (1/2). In the example shown in FIG. 4, the total stroke of the machining table 2 shown on the vertical axis of the graph (maximum value of the displacement of the machining table) is 220 mm, and the crank radius is 110 mm.

The amount of displacement of the machining table shown in FIG. 4 is defined as the displacement of the machining table 2 from the holding table 3 in the TA direction with respect to the position (bottom dead point) closest to the holding table 3 as a reference (zero). It represents the amount of displacement (distance).
Further, what is indicated by reference numeral S in FIGS. 3 (a) and 3 (b) and FIG. 4 is an effective stroke. The effective stroke S means that the cylindrical body W can be machined during one stroke in which the machining table 2 approaches and separates from the holding table 3 in the table axis TA direction (out of the total stroke length). It is the length in the table axis TA direction (the central axis direction of the tubular body W).

Specifically, as shown in FIG. 3A, the effective stroke S is when the crank shaft 17 is arranged at the boundary between the allocation angle IP and the stop angle DP (the starting point in the range of the stop angle DP). The table axis TA of the processing table 2 at the position along the table axis TA direction of the processing table 2 and when the crank axis 17 is arranged at the bottom dead center (crank angle 180 °) as shown in FIG. 3 (b). It is obtained by the difference between the position along the direction and the distance. Therefore, the effective stroke S is smaller than the total stroke of the machining table 2. In the example shown in FIG. 4, the effective stroke S is about 130 mm.

Further, when the crank angle is within the range of the stop angle DP, the rotational movement of the supply wheel 10 and the discharge wheel 14 is also stopped in synchronization with the holding table 3. Further, when the crank angle is within the range of the allocation angle IP, the supply wheel 10 and the discharge wheel 14 also rotate and move in synchronization with the holding table 3.

Then, when the crank angle detected by the detection means 19 is within the range of the allocation angle IP, the control unit 20 stops the supply of the tubular body W to the supply wheel 10 by the stopper 25, and the detection means 19 stops the supply. When the detected crank angle is within the range of the stopping angle DP, the supply stop state of the tubular body W to the supply wheel 10 by the stopper 25 is released (that is, the tubular body W is supplied to the supply wheel 10). ..

As shown in FIG. 4, specifically, in the present embodiment, when the crank angle is within the predetermined range H including the bottom dead center (crank angle 180 °) of the stopping angle DP, the stopper 25 Releases the supply stop state of the tubular body W to the supply wheel 10 (supplies the tubular body W to the supply wheel 10). The size of the predetermined range H of the crank angle is, for example, about 10 to 20 °. In the example shown in FIG. 4, the predetermined range H of the crank angle is the crank angle 175 to 185 ° with the bottom dead center as the median. Is.

Further, when the control unit 20 receives an abnormal signal of at least one of the can manufacturing apparatus 1, the equipment in the front-end process and the equipment in the back-end process of the can manufacturing apparatus 1, the stopper 25 has a tubular shape to the supply wheel 10. Stop the supply of body W.

In the can manufacturing apparatus 1 of the present embodiment described above, the crank mechanism 8 for reciprocating the processing table 2 in the table axis TA direction, the table index mechanism 9 for intermittently rotating the holding table 3 around the table axis TA, and the supply wheel The wheel index mechanism 15 that intermittently rotates the 10 and the discharge wheel 14 around each wheel shaft SA and DA are synchronized with each other (these mechanisms 8, 9, and 15 are synchronized with each other). Specifically, the table index mechanism 9 intermittently rotates the holding table 3 and the wheel index mechanism 15 intermittently rotates the supply wheel 10 and the discharge wheel 14 according to the crank angle of the crank mechanism 8.

In the present embodiment, a stopper 25 for supplying and stopping the supply of the tubular body W to the supply wheel 10 is provided, and the control unit 20 uses the stopper 25 based on the crank angle detected by the detecting means 19. Activate. This produces the following excellent effects.
That is, when the detected crank angle is within the range of the allocation angle IP (that is, while the supply wheel 10 is rotating), the stopper 25 stops the supply of the cylindrical body W to the supply wheel 10. Can be done. Further, when the detected crank angle is within the range of the stopping angle DP (that is, while the rotation of the supply wheel 10 is stopped), the supply stop state of the tubular body W by the stopper 25 is released. The tubular body W can be reliably delivered to the pocket 23 of the supply wheel 10.

Specifically, in the conventional example different from the present embodiment, since the tubular body W is supplied to the supply wheel 10 while the supply wheel 10 is rotating, a portion other than the pocket 23 on the outer periphery of the supply wheel 10 is provided. The tubular body W may be damaged due to rubbing of the tubular body W, the tubular body W may fall without being held by the pocket 23, or the wheel may be caught between the outer circumference of the wheel and the guide member on the radial outer side thereof. It was sometimes crowded.
On the other hand, according to the present embodiment, the tubular body W can be supplied to the supply wheel 10 while the rotation of the supply wheel 10 is stopped, so that the tubular body W is surely stored in the pocket 23 of the supply wheel 10. Can be held in. Therefore, problems such as damaging, dropping, or biting the tubular body W are stably prevented.

From the above, according to the present embodiment, the tubular body (work) W can be delivered to the supply wheel 10 at an appropriate timing, thereby preventing damage, dropping, biting, etc. of the tubular body W. High-quality bottle cans (cans) P can be stably manufactured.

Further, in the present embodiment, when the crank angle is within the predetermined range H including the bottom dead center of the stopping angle DP, the control unit 20 cancels the supply stop state of the tubular body W to the supply wheel 10 by the stopper 25. Therefore, it has the following effects.
That is, in this case, in the predetermined range H in which the crank angle includes the bottom dead center (crank angle = 180 °) of the stopping angle DP, the supply stop state of the tubular body W to the supply wheel 10 by the stopper 25 is released. (Cylindrical body W is supplied to the supply wheel 10). That is, since the tubular body W is supplied to the supply wheel 10 at the median value of the angle range of the stopping angle DP, the tubular body W can be reliably delivered to the pocket 23 of the supply wheel 10 described above. The effect becomes more stable.

Further, in the present embodiment, since the detection means 19 is, for example, an angle position detection sensor (rotation angle sensor) such as a rotary encoder or a resolver, the detection means 19 can be easily and compactly configured to be incorporated into an apparatus with high accuracy and can be obtained. Easy and easy to handle.
Then, in order to make the control unit 20 function by such an angle position detection sensor, for example, an electronic cam switch or the like may be used.

Further, in the present embodiment, when the control unit 20 receives an abnormal signal of at least one of the can manufacturing apparatus 1, the equipment in the front-end process and the equipment in the back-end process of the can manufacturing apparatus 1, the supply wheel 10 is provided by the stopper 25. Since the supply of the tubular body W to the cylinder W is stopped, the following effects are obtained.
That is, in this case, when an abnormality occurs in the can manufacturing apparatus 1, the equipment in the front-end process and the equipment in the back-end process of the can manufacturing apparatus 1, the stopper 25 stops the supply of the tubular body W to the supply wheel 10. Therefore, it is possible to prevent the can manufacturing apparatus 1 from forming a large amount of defective tubular bodies W or applying a large load to the apparatus 1. Specifically, the control unit 20 is releasing the supply stop state of the tubular body W to the supply wheel 10 by the stopper 25 (that is, even when the tubular body W is being supplied to the supply wheel 10). When an abnormal signal is received due to the occurrence of an abnormality, the stopper 25 stops the supply of the tubular body W to the supply wheel 10.
The above-mentioned "abnormality" includes, for example, when a jam (clogging due to a molding defect of the tubular body W, etc.) occurs in the can manufacturing apparatus 1, or equipment in a post-process (downstream side of the manufacturing process) of the can manufacturing apparatus 1. When the stock of the tubular body (work) W runs out in the pre-process (upstream side of the manufacturing process) of the can manufacturing device 1, or when the line stop control works in the pre-process or post-process, etc. Is included.

Further, in the present embodiment, when it is desired to temporarily stop the operation of the can manufacturing apparatus 1, for example, when it is desired to change the type of the can P to be manufactured, the operator (operator) manually operates the stopper 25 by the control unit 20. The supply of the tubular body (work) W to the supply wheel 10 may be stopped. As a result, the supply of the tubular body W from the supply wheel 10 to the holding table 3 is also stopped, so that all the tubular bodies W held by the holding table 3 can be paid out (all the tubular bodies W can be dispensed). It can be discharged by the discharge wheel 14). Then, if the operation of the can manufacturing apparatus 1 is stopped after all the tubular bodies W are discharged from the holding table 3, no defective can P is produced when the apparatus 1 is restarted. There is no waste.

Further, for example, when a large amount of cans P are stocked and crowded in the subsequent process of the can manufacturing apparatus 1, the stopper 25 stops the supply of the tubular body W to the supply wheel 10 to cause the apparatus 1 to be supplied. Can manufacturing can be temporarily stopped without stopping the operation.

Specifically, in the can manufacturing apparatus 1, once the operation of the apparatus 1 is stopped, the holding table 3 is used to prevent an excessive load from being applied to the apparatus 1 when the operation is restarted from this stopped state. The speed of the reciprocating movement of the processing table 2 in the TA direction of the table axis is gradually increased by an inverter or the like to reach a predetermined reciprocating movement speed (constant reciprocating movement speed during continuous operation, hereinafter referred to as "predetermined speed"). I have reached it. The table axis between the machining table 2 and the holding table 3 corresponds to the gradual increase in the inertial force of the machining table 2 until the operation is restarted and the machining table 2 reaches a predetermined speed. Since the distance in the TA direction also changes little by little, it is not possible to secure the accuracy of the molding process of the tubular body W, so that a certain level or more of the processing standby time must be provided. In the present embodiment, by providing the stopper 25, it is possible to reduce such a processing standby time.

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

In the above-described embodiment, the stopper 25 has a stopper pin 26 that is brought into contact with the bottom wall of the tubular body W, and a pin drive unit 27 that advances and retracts the stopper pin 26 with respect to the bottom wall of the tubular body W. , But is not limited to this. That is, the stopper 25 may have a configuration capable of supplying (switching) the supply and stopping (switching) of the tubular body W to the supply wheel 10, and uses, for example, a plate-shaped member, an elastic member, or the like. It may be.

Further, in the above-described embodiment, the detection means 19 is, for example, an angle position detection sensor (rotation angle sensor) such as a rotary encoder or a resolver, but the detection means 19 is not limited thereto. That is, the detection means 19 may be a position detection sensor or the like other than the angle position detection sensor.

Further, in the above-described embodiment, as the can manufacturing apparatus 1, a bottle can manufacturing apparatus that manufactures a bottle can P by subjecting a bottomed tubular tubular body W to various processes is given as an example. Not limited to. That is, the can manufacturing apparatus 1 may be, for example, an aerosol can manufacturing apparatus that manufactures an aerosol can by subjecting the tubular body W to various processes, or manufactures a can other than a bottle can and an aerosol can. It may be a can manufacturing apparatus. Further, the cylindrical body W is not limited to a bottomed cylinder, and may be a simple cylinder or the like having no bottom wall.

In addition, as long as it does not deviate from the gist of the present invention, each configuration (component) described in the above-described embodiments, modifications, and notes may be combined, and additions, omissions, substitutions, and the like of the configurations may be combined. It can be changed. Further, the present invention is not limited by the above-described embodiments, but is limited only by the scope of claims.

According to the can manufacturing apparatus of the present invention, a tubular body (work) can be delivered to the supply wheel at an appropriate timing, thereby preventing damage, dropping, biting, etc. of the tubular body and achieving high quality. It is possible to stably manufacture simple cans. Therefore, it has industrial applicability.

1 Can manufacturing equipment 2 Processing table 3 Holding table 4 Equipment body 5 Shaft 6 Processing tool 8 Crank mechanism 9 Table index mechanism 10 Supply wheel 15 Wheel index mechanism 16 Drive shaft 17 Crank shaft 18 Connecting rod 19 Detection means 20 Control unit 23 Pocket 25 Stopper DP Stop angle H Predetermined range IP allocation angle (index angle)
O Central shaft of drive shaft SA Wheel shaft of supply wheel TA Table shaft W Cylindrical body (work)

Claims (5)

A holding table that holds a cylindrical body and intermittently rotates around the table axis,
A processing tool for processing a cylindrical body is provided, and a processing table is arranged on the holding table so as to face each other from the table axis direction.
A crank mechanism that reciprocates the processing table with respect to the holding table in the table axis direction,
A supply wheel that has a pocket on the outer circumference that can hold the tubular body, rotates intermittently around the wheel axis in synchronization with the intermittent rotation around the table axis of the holding table, and supplies the tubular body to the holding table. When,
A stopper for supplying and stopping the supply of the tubular body to the supply wheel,
A detection means capable of detecting the crank angle around the drive shaft of the crank mechanism, and
A control unit that operates the stopper based on the crank angle detected by the detection means is provided .
The control unit
When the crank angle detected by the detection means is within the range of the allocation angle including the top dead center, which is the position where the processing table is most distant from the holding table in the table axial direction, the stopper Stops the supply of the tubular body to the supply wheel.
When the crank angle detected by the detection means is within the range of the stop angle including the bottom dead center, which is the position where the processing table is closest to the holding table in the table axial direction, the stopper A can manufacturing apparatus, characterized in that the supply stop state of the tubular body to the supply wheel is released . The can manufacturing apparatus according to claim 1.
The crank mechanism is
Drive shaft and
A crank shaft that is connected to the drive shaft and is rotated around the central axis of the drive shaft as the drive shaft rotates.
It has a connecting rod that connects the crank shaft and the processing table.
The can manufacturing apparatus is characterized in that the detecting means can detect the crank angle, which is a circumferential position of the crank shaft along the central axis of the drive shaft. The can manufacturing apparatus according to claim 1 or 2 .
The control unit is characterized in that when the crank angle is within a predetermined range including the bottom dead center within the range of the stopping angle, the supply stop state of the tubular body to the supply wheel by the stopper is released. Can manufacturing equipment. The can manufacturing apparatus according to any one of claims 1 to 3 .
When the control unit receives an abnormal signal of at least one of the can manufacturing apparatus, the equipment in the front-end process and the equipment in the back-end process of the can manufacturing apparatus, the stopper causes the tubular body to the supply wheel. A can manufacturing device characterized by stopping the supply. The can manufacturing apparatus according to any one of claims 1 to 4 .
The detection means is a can manufacturing apparatus characterized by being an angle position detection sensor.

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