JP2005329424A - Apparatus for manufacturing bottle can - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve production efficiency while keeping the working accuracy of a bottle can excellent in a bottle can manufacturing apparatus. <P>SOLUTION: This apparatus is provided with a work supporting disk 3 for supporting a work, a tool supporting disk 4 for supporting a plurality of working tools 6 for working the work and a driving system 10 by which these respective disks 3, 4 are approached and separated and has a drawing tool for performing working by approaching action to the work and a rotary tool for performing the working by rotational action to the work when the respective disks 3, 4 are in the state wherein they approach within the prescribed range and the time when the respective disks 3, 4 are in the state wherein they approach within the prescribed range is extended and also the time when the respective disks 3, 4 are in the state wherein they are separated outside the prescribed range is shortened by building a deformed gear pair 15 in the driving system 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bottle can manufacturing apparatus for manufacturing a metal bottle can for beverages.

Conventionally, as a bottle can manufacturing apparatus for manufacturing a metal bottle can (hereinafter simply referred to as a bottle can), for example, those described in Patent Documents 1 and 2 are known. This is because the work support base that supports the bottomed cylindrical work and the tool support base that supports multiple processing tools for work processing are placed opposite to each other, and these can be moved close to and away from each other by a drive unit using a crank mechanism. And each workpiece is moved close to and away from each other and processed into a workpiece placed between them. The plurality of machining tools are arranged in the order of machining on the workpiece, and the workpiece can be moved to a machining position by the next machining tool for each stroke in which each table approaches and separates. Then, the workpiece is sequentially processed by repeating the stroke of each table and the movement of the workpiece, and a bottle can having a predetermined shape is completed when a series of processing is completed.
JP 2003-290855 A JP 2003-251424 A

By the way, in the machining tool, in addition to the drawing tool for reducing the diameter of the upper part of the work by the approaching operation in the axial direction to the work and the drawing tool for performing the ironing process, the respective tables are within a predetermined range. A rotating tool is provided that performs trimming of the tip of the workpiece, screw forming processing, and the like by a rotating operation centered on the axis of the workpiece when in the close state. This rotary tool has a narrow stroke range (predetermined range) that can be processed on the workpiece as compared with the drawing tool. Therefore, in order to keep the processing accuracy good, the time per stroke of each unit (the drive device) The angular speed of the crankshaft) is set to be long in order to secure the minimum machining time by the rotary tool. However, in order to further improve the production efficiency of bottle cans, improvement of this point is being demanded.
The present invention has been made in view of the above circumstances, and an object of the present invention is to improve production efficiency while maintaining good processing accuracy of a bottle can in a bottle can manufacturing apparatus.

  As a means for solving the above-mentioned problems, the invention described in claim 1 includes a workpiece support table that supports a bottomed cylindrical workpiece, a plurality of machining tools for machining the workpiece, and the workpiece support table and an axis of the workpiece. A tool support table arranged opposite to each other in a direction and a drive device that moves these tables closer to and away from each other in the axial direction of the workpiece, and processes the workpieces placed between them by moving the tables closer and separated from each other. In the bottle can manufacturing apparatus, as the processing tool, a drawing tool for processing the workpiece by an approaching operation in the axial direction to the workpiece, and the workpiece when the stands are close to each other within a predetermined range. A rotating tool that performs processing on the workpiece by rotating around the axis of the workpiece, and during the stroke in which the platforms approach and move away from each other, the platforms are in close proximity to the predetermined range. With prolong, each platform is characterized in that to shorten the time in a state of being separated until outside the predetermined range.

  According to this configuration, when processing each workpiece with a squeezing tool and a rotating tool with each table close to and away from each other, only the processing time for the workpiece with the rotating tool is reduced without extending the time per stroke of each table. It can be extended. In other words, it is possible to reduce the time per stroke of each unit while making the machining time of the workpiece by the rotary tool equivalent to the conventional one.

  As a specific example for realizing the above configuration, the invention described in claim 2 is that the drive device includes a rotation drive unit as a drive source thereof, and a crank that converts a rotation motion by the rotation drive unit into a reciprocating linear motion. And a deformed gear pair for changing the angular velocity of the crankshaft of the crank mechanism is provided in a power transmission system between the rotation driving means and the crank mechanism.

  According to this configuration, the crank mechanism is driven using a rotational driving means such as a motor to bring the tables close to and away from each other. At this time, the rotational movement from the rotational driving means is caused to pass through the deformed gear pair. Since it is transmitted to the crankshaft as a non-constant speed rotational motion having the maximum and minimum speeds, the displacement curve showing the change in the relative displacement amount of each unit with respect to the input rotation angle to the deformed gear pair is simple. It is not a sine curve but an original correction curve (modify sine curve) in which only a change in a portion corresponding to the predetermined range is moderated. That is, as described above, it is possible to extend only the processing time for the workpiece by the rotary tool without extending the time per stroke of each unit.

  According to a third aspect of the present invention, the drive device includes a rotation drive unit as a drive source thereof, and a cam mechanism that converts a rotary motion by the rotation drive unit into a reciprocating linear motion. .

  According to this configuration, the rotational motion from the rotational drive means can be converted into a reciprocating linear motion along a desired cam pattern. As a result, as described above, without extending the time per stroke of each vehicle. It becomes possible to extend only the processing time for the workpiece by the rotary tool.

  Here, as in the invention described in claim 4, the rotational drive means as the drive source of the drive device may be capable of changing the angular velocity of the drive shaft. As with the second and third aspects, only the machining time for the workpiece by the rotary tool can be extended with a simple configuration.

  According to the first to fourth aspects of the present invention, a simple configuration in which only the power transmission system or the drive source is changed is made, and the machining time for the workpiece by the rotary tool is made equivalent to that of the conventional one. The time per stroke can be shortened, and the production efficiency can be improved while maintaining the processing accuracy of the bottle can.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as the directions in the installed state of the apparatus unless otherwise specified.

  As shown in FIGS. 1 and 2, the bottle can manufacturing apparatus 1 includes a work support disk (work support table) 3 provided on one side of a frame 2 so as to be rotatable about a substantially horizontal rotation axis C, and the work A tool support disk (tool support base) 4 disposed opposite to the work support disk 3 is provided at a portion of the support disk 3 opposite to the frame 2.

  A number of holders 5 that can hold the bottom side of the bottomed cylindrical workpiece W are arranged on the outer periphery of the workpiece support disc 3 on the tool support disc 4 side. The workpieces W held by these holders 5 are arranged so that the axis thereof is parallel to the axis of each of the disks 3 and 4 (the rotation axis C). The work support disk 3 can be rotated intermittently counterclockwise in FIG. 1 (indicated by an arrow F in FIG. 1) together with the holder 5 and the work W held by the holder 5 by a rotation driving device (not shown). is there.

  On the other hand, on the outer periphery of the tool support disk 4 on the work support disk 3 side, a large number of processing tools 6 provided to be paired with the respective holders 5 are arranged. The tool support disk 4 is configured to be able to approach and separate from the work support disk 3 in the axial direction (the axial direction of the work W held by the work support disk 3) by a driving device 10 which will be described later. When 4 moves close to and away from the workpiece, the workpiece W arranged between them is processed.

  The respective processing tools 6 are arranged in the order of processing to the workpiece W, and the workpiece holder 5 is rotated by a predetermined amount each time each of the disks 3 and 4 approaches and separates, whereby each workpiece W is moved by the next processing tool 6. Move to machining position. Then, by repeating the stroke of each of the disks 3 and 4 and the movement of the workpiece W, the workpiece W is sequentially processed, and when a series of processing is completed, a bottle can having a predetermined shape is completed. The can is discharged from the discharge device 8 shown in FIG. 1 and supplied to the subsequent process. Reference numeral 7 denotes a supply device for supplying the workpiece W to the workpiece support disk 3.

  Here, the bottle can will be described with reference to FIG. 8. The bottle can is used to enclose a beverage, and is made of a metal plate such as an aluminum alloy. In forming this bottle can, first, a metal plate is formed into a bottomed cylindrical shape to form a work W shown in FIG. 8A, and this work W is supplied to the bottle can manufacturing apparatus 1 as described above. Processing to the workpiece W is performed sequentially.

  Specifically, as the opening side of the workpiece W is gradually drawn and ironed, a base part W2 having a reduced diameter with respect to the can body part W1 is formed as shown in FIG. 8B. At this point, trimming processing is performed to align the height (length) of the base part W2. Next, the base portion W2 is once expanded in diameter to become an expanded diameter portion W3, and a screw portion W4 is formed around the expanded diameter portion W3 as shown in FIG. 8 (d).

Further, as shown in FIG. 8 (e), after the tip end of the base part W2 is folded outward to form the curled part W5, as shown in FIG. 8 (f), the curled caulking is formed by crushing the curled part W5. Part W6 is formed.
The bottle can thus completed is filled with contents such as beverages, and a cap (not shown) is screwed onto the screw portion W4 to seal the opening of the cap portion W2, thereby completing the commercialization.

  As shown in FIG. 1, the processing tools 6 that perform the above-described processing are sequentially arranged from the upstream side to the downstream side in the rotation direction of the work support disk 3 in the tool support disk 4. That is, the drawing tools 6A as a plurality of diameter reducing machines that perform drawing and ironing are sequentially arranged on the work W, and the trimmer machine that performs trimming and the base W2 are expanded in diameter on the downstream side thereof. A rotary tool 6B such as a diameter expanding machine, a screw forming machine for forming the screw part W4, a curling machine for forming the curled part W5, and a slot machine for forming the curled caulking part W6 are sequentially arranged.

  The aperture tool 6A performs processing on the workpiece W by an approaching operation in the axial direction to the workpiece W. Further, the rotary tool 6B performs processing on the workpiece W by rotating operation around the axis of the workpiece W when the disks 3 and 4 are close to each other within a predetermined range. Here, the stroke range (the predetermined range) in which the rotary tool 6B can process the workpiece W is narrower than the stroke range in which the aperture tool 6A can process the workpiece W.

  As shown in FIG. 3, a drive device 10 that moves the tool support disk 4 close to and away from the work support disk 3 includes a motor (rotation drive means) 11 as a drive source, and the drive force from the motor 11 is a belt. The clutch-and-brake 13 input via the clutch 12, the reduction gear pair 14 that decelerates the driving force output from the clutch-and-brake 13 with a constant torque, and the rotational movement on the output side of the reduction gear pair 14 are maximized. A deformed gear pair (deformed gear pair) 15 for converting to a non-constant speed rotational motion having the minimum speeds, a crankshaft 16 connected to the output side of the deformed gear pair 15, the crankshaft 16 and the connecting rod 17 And a connecting shaft 18 connected via the.

The connecting shaft 18 is disposed on the axis of each of the disks 3 and 4, and one side of the connecting shaft 18 penetrates the frame 2 and the work support disk 3 and is supported so as to be movable in the axial direction. Further, the end portion of the connecting shaft 18 protruding from the frame 2 and the workpiece support disk 3 is integrally coupled to the center portion of the tool support disk 4.
The crank mechanism 20 including the crankshaft 16, the connecting rod 17, and the connecting shaft 18 converts the rotational motion by the motor 11 into the reciprocating linear motion of the connecting shaft 18, and the tool support disk 4 becomes the work support disk 3. On the other hand, they come close to and away from each other.

  As shown in FIG. 4, the input side gear 15 </ b> A and the output side gear 15 </ b> B constituting the deformed gear pair 15 are each non-circular when viewed from the front, and each rotational axis is also eccentric. In such a deformed gear pair 15, when the input side gear 15A makes one revolution at a constant angular velocity, the output side gear 15B makes one revolution while generating the maximum and minimum angular velocities.

FIG. 5 is a graph showing changes in the amount of displacement of the tool support disk 4 with respect to the input rotation angle to the deformation gear pair 15. The vertical axis indicates the displacement of the tool support disk 4 from the position where the respective disks 3 and 4 are farthest apart, and the horizontal axis indicates the input rotation angle from the motor 11.
A curve S indicated by a broken line in FIG. 5 represents the displacement of the work support disk 3 when the crankshaft 16 is rotated at a constant speed (rotation at a constant angular velocity) without the deformed gear pair 15 being interposed. This displacement curve is a so-called sine curve, and the displacement acceleration acting on the tool support disk 4 around the position where each of the disks 3, 4 is farthest away and the tool support disk 4 around the position where each of the disks 3, 4 is closest. The acting displacement acceleration is the same.

  On the other hand, a curve S ′ indicated by a solid line in FIG. 5 represents the displacement of the work support disk 3 when the crankshaft 16 is rotated at a non-constant speed via the deformed gear pair 15. This curve has a large displacement acceleration acting on the tool support disk 4 around the position where each of the disks 3 and 4 is farthest from the sine curve, and the tool support disk around the position where each of the disks 3 and 4 is closest. 4 is a correction curve (modify sine curve) set so that the displacement acceleration acting on 4 becomes small.

In the bottle can manufacturing apparatus 1, the processing of the workpiece W by each of the squeezing tools 6A is performed when the displacement amount of the tool support disk 4 becomes, for example, 110 mm or more.
On the other hand, the processing of the workpiece W by the rotary tool 6B is performed when the displacement amount of the tool support disk 4 becomes, for example, 200 mm or more.

  Here, as shown in FIG. 5, if the displacement of the workpiece support disk 3 is along the sine curve, the range of the input rotation angle where the displacement amount of the tool support disk 4 is 200 mm or more is less than 150 ° to 210 °. If the displacement of the workpiece support disk 3 is along the correction curve, the input rotation angle range where the displacement of the tool support disk 4 is 200 mm or more is from slightly over 130 ° to 230 °. It is expanded to the range H ′ up to °. In addition, the range of the input rotation angle in which the displacement amount of the work support disk 3 is 110 mm or more that can be processed by the respective drawing tools 6A is also enlarged.

On the contrary, the range of the input rotation angle in which the displacement amount of the tool support disk 4 is less than 200 mm that is not processed by the rotary tool 6B is reduced. In addition, the range of the input rotation angle in which the displacement amount of the tool support disk 4 is less than 110 mm where the processing by the respective drawing tools 6A is not performed is similarly reduced.
When the rotational motion input to the deformed gear pair 15 has a constant angular velocity, if the range of the input rotational angle is expanded, the time during which each of the disks 3 and 4 is in that state is extended. If the range of the rotation angle is reduced, the time during which each of the disks 3 and 4 is in that state is shortened.

  The bottle can manufacturing apparatus 1 in the first embodiment supports a work support disk 3 that supports a bottomed cylindrical work W and a plurality of processing tools 6 for processing the work W, and the work support disk 3 and the work A tool support disk 4 opposed to each other in the axial direction of W, and a driving device 10 for moving these disks 3 and 4 close to and away from each other in the axial direction of the workpiece W. The workpiece W disposed between the two is processed.

  Further, the bottle can manufacturing apparatus 1 includes, as the processing tool 6, a drawing tool 6A for processing the workpiece W by an approaching operation in the axial direction to the workpiece W, and the disks 3 and 4 within a predetermined range. A rotating tool 6B for processing the workpiece W by rotating around the axis of the workpiece W when in the close state, and during each stroke in which the disks 3 and 4 are moved closer to and away from each other. The discs 3 and 4 are configured to extend the time in which they are close to the predetermined range, and to shorten the time in which the discs 3 and 4 are apart from the predetermined range.

  And in order to implement | achieve the said structure, in the bottle can manufacturing apparatus 1, the said drive device 10 has the motor 11 as the drive source, and the crank mechanism 20 which converts the rotational motion by this motor 11 into a reciprocating linear motion, The power transmission system between the motor 11 and the crank mechanism 20 is provided with a deformed gear pair 15 that changes the angular speed of the crankshaft 16 of the crank mechanism 20.

  According to this configuration, when the disks 3 and 4 are moved close to and away from each other and the workpiece W is processed by the drawing tool 6A and the rotary tool 6B, the crank mechanism 20 is driven using the motor 11 to drive the disks 3 and 3. 4, the rotational motion from the motor 11 is transmitted to the crankshaft 16 as a non-constant rotational motion having maximum and minimum speeds via the deformed gear pair 15. As a result, the displacement curve indicating the change in the relative displacement amount of each of the disks 3 and 4 with respect to the input rotation angle to the deformed gear pair 15 is not a simple sine curve, but only a change in a portion corresponding to the predetermined range. The original modified curve (modify sine curve) is relaxed.

  That is, it is possible to extend only the processing time for the workpiece W by the rotary tool 6B without extending the time per stroke of each of the disks 3 and 4. In other words, it is possible to shorten the time per stroke of each of the disks 3 and 4 while making the machining time for the workpiece W by the rotary tool 6B equal to the conventional one.

  For this reason, it is possible to improve the production efficiency while maintaining good processing accuracy of the bottle can. In particular, this can be realized with a simple configuration in which the power transmission system between the motor 11 and the crank mechanism 20 is simply provided with the deformed gear pair 15 as a mechanical element.

Next, a second embodiment of the present invention will be described.
The bottle can manufacturing apparatus 101 in the second embodiment performs the approach and separation of the tool support disk 4 with respect to the bottle can manufacturing apparatus 1 in the first embodiment by using a driving device 110 using a cam mechanism 120 described later. The only difference is in the points, and the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in FIG. 6, the drive device 110 in the bottle can manufacturing apparatus 101 includes a motor (rotation drive means) 111 as a drive source thereof, a cam drum 112 connected to a drive shaft of the motor 111 and driven to rotate, A connecting shaft 118 extending from the vicinity of the cam drum 112 through the frame 102 and the work support disk 3 and coupled to the center of the tool support disk 4 is provided. The connecting shaft 18 is disposed on the axis of each of the disks 3 and 4 and is supported so as to be movable in the axial direction.

On the outer periphery of the cam drum 112, a flange-shaped cam 113 that forms a predetermined cam pattern is continuously provided over the entire periphery. On the other hand, a pair of cam followers 114 arranged so as to sandwich the cam 113 in the axial direction of the connecting shaft 18 is provided in a portion of the connecting shaft 18 adjacent to the cam drum 112.
By the cam mechanism 120 constituted by the cam drum 112 and the connecting shaft 18, the rotational motion by the motor 11 is converted into the reciprocating linear motion of the connecting shaft 18 so that the tool support disk 4 moves closer to and away from the work support disk 3. It has become.

In the bottle can manufacturing apparatus 101 in the second embodiment, the driving device 110 includes a motor 111 as a driving source thereof and a cam mechanism 120 that converts a rotational motion by the motor 111 into a reciprocating linear motion.
According to this configuration, the rotational motion from the motor 111 can be converted into a reciprocating linear motion along a desired cam pattern. As a result, as described above, the time per stroke of each of the disks 3 and 4 is extended. Therefore, it is possible to extend only the processing time for the workpiece W by the rotary tool 6B. In other words, it is possible to shorten the time per stroke of each of the disks 3 and 4 while making the machining time for the workpiece W by the rotary tool 6B equal to the conventional one.
For this reason, like the first embodiment, it is possible to improve the production efficiency while maintaining good processing accuracy of the bottle can with a simple configuration.

Next, a third embodiment of the present invention will be described.
The bottle can manufacturing apparatus 201 in the third embodiment is a driving apparatus 210 using a servo motor 211 and a crank mechanism 220 which will be described later on the approach and separation of the tool support disk 4 with respect to the bottle can manufacturing apparatus 1 in the first embodiment. The difference is only in the point that is used, and the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

  As shown in FIG. 7, the driving device 210 in the bottle can manufacturing apparatus 201 has a servo motor (rotation driving means) 211 as a driving source and a driving force from the servo motor 211 input via a belt 212. A clutch-and-brake 213, a reduction gear pair 214 for reducing the driving force output from the clutch-and-brake 213 with a constant torque, a crankshaft 216 connected to the output side of the reduction gear pair 214, and the crankshaft 216 and a connecting shaft 218 connected via a connecting rod 217.

The connecting shaft 218 is disposed on the axis of each of the disks 3 and 4, and one side thereof penetrates the frame 202 and the work support disk 3 and is supported so as to be movable in the axial direction. The protruding end portion of the connecting shaft 218 is integrally coupled to the center portion of the tool support disk 4.
Then, the crank mechanism 220 composed of the crankshaft 216, the connecting rod 217, and the connecting shaft 218 converts the rotational motion by the servo motor 211 into the reciprocating linear motion of the connecting shaft 218, so that the tool support disk 4 becomes the work support disk. 3 and away.

  The servo motor 211 is driven and controlled by the control circuit 221. The control circuit 221 receives a detection signal from a sensor 222 that monitors the amount of displacement of the connecting shaft 18, that is, the amount of displacement of the tool support disk 4. The control circuit 221 drives and controls the servo motor 211 in order to change the angular velocity of the drive shaft.

  That is, when each of the disks 3 and 4 is in a state close to a predetermined range in which machining by the rotary tool 6B can be performed, the angular velocity of the drive shaft of the servo motor 211 is decreased to extend the time, and each disk When 3 and 4 are separated from the predetermined range, the angular velocity of the drive shaft of the servo motor 211 can be increased in order to shorten the time.

In the bottle can manufacturing apparatus 1 in the third embodiment, a servo motor 211 as a drive source of the drive apparatus 10 can change the angular velocity of the drive shaft.
According to this configuration, as in the first and second embodiments, it is possible to extend only the processing time for the workpiece W by the rotary tool 6B without extending the time per stroke of each of the disks 3 and 4. It becomes possible. In other words, it is possible to shorten the time per stroke of each of the disks 3 and 4 while making the machining time for the workpiece W by the rotary tool 6B equal to the conventional one.
For this reason, like the first and second embodiments, it is possible to improve the production efficiency while maintaining good processing accuracy of the bottle can with a simple configuration.

In addition, this invention is not restricted to the said Example, For example, it is good also as a structure which at least one of the workpiece | work support disk 3 and the tool support disk 4 can approach / separate with respect to the other. Similarly, at least one of the workpiece support disk 3 and the tool support disk 4 may be configured to be rotatable about the rotation axis C.
Further, the motors 11 and 111 in the first and second embodiments may be configured like the servo motor 211 in the third embodiment.
The configurations in the above embodiments are merely examples, and it goes without saying that various modifications can be made without departing from the scope of the invention.

It is a front view of the bottle can manufacturing apparatus in the Example of this invention. It is a side view of the said bottle can manufacturing apparatus. It is upper surface explanatory drawing which shows the structure of the drive device of the said bottle can manufacturing apparatus. It is a front view of the deformation | transformation gear pair of the said drive device. It is a graph which shows the displacement amount of the tool support disk with respect to the input rotation angle to a deformation | transformation gear pair. It is upper surface explanatory drawing which shows the structure of the drive device of the bottle can manufacturing apparatus in 2nd Example of this invention. It is upper surface explanatory drawing which shows the structure of the drive device of the bottle can manufacturing apparatus in 3rd Example of this invention. It is explanatory drawing which shows the manufacturing process of a bottle can.

Explanation of symbols

1,101,102 Bottle can manufacturing equipment 3 Work support disk (work support stand)
4 Tool support disk (tool support stand)
6 Processing Tool 6A Aperture Tool 6B Rotation Tool 10 Drive Device 11, 111 Motor (Rotation Drive Means)
15 Deformation gear pair (deformation gear pair)
20 Crank mechanism 211 Servo motor (rotation drive means)
220 Cam mechanism W Workpiece

Claims (4)

A workpiece support table that supports a bottomed cylindrical workpiece, a tool support table that supports a plurality of machining tools for machining the workpiece, and is arranged opposite to the workpiece support table in the axial direction of the workpiece, In a bottle can manufacturing apparatus that includes a drive device that moves closer to and away from each other in the axial direction, and processes the workpieces that are placed between them by moving them closer to and away from each other.
As the processing tool, a drawing tool that performs processing on the workpiece by an approach operation in the axial direction to the workpiece, and the axis to the workpiece when the respective stands are close to a predetermined range. A rotating tool for processing the workpiece by rotating operation,
During one stroke in which each of the bases are close to and away from each other, the time for each base to be close to the predetermined range is extended, and the time for each base to be apart from the predetermined range is shortened. Bottle can manufacturing equipment.   The drive device includes a rotation drive means as a drive source thereof, and a crank mechanism that converts a rotational motion by the rotation drive means into a reciprocating linear motion, and a power transmission system between the rotation drive means and the crank mechanism. The bottle can manufacturing apparatus according to claim 1, further comprising a deformed gear pair that changes an angular velocity of a crankshaft of the crank mechanism.   2. The bottle can manufacturing apparatus according to claim 1, wherein the drive device includes a rotation drive unit as a drive source thereof, and a cam mechanism that converts a rotation motion by the rotation drive unit into a reciprocating linear motion. The bottle can manufacturing apparatus according to any one of claims 1 to 3, wherein the rotational drive means as a drive source of the drive device can change the angular velocity of the drive shaft.

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