JP2007229730A - Can seaming machinery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a can seaming machinery which dispenses with replacement of a copying cam and skillful technique, allows the number of renewal parts to be reduced and replacement work to be simplified and which is adaptive to various can shapes, also can achieve laborsaving and remarkable improvement in the productivity. <P>SOLUTION: The can seaming machinery is composed of at least a chuck 1 for fixing the can main body W1, a curling roller 2, a tightening roller 3, a holding ring 4 and a guide ring 6 which is movable in the direction of the X-axis or the Y-axis; the curling roller 2 and the tightening roller 3 are rotatably attached oppositely in the inside of the holding ring 4 and the holding ring 4 is rotatably attached to the guide ring 6. The holding ring 4 is attached horizontally movably to a rotary driving ring 10 which is arranged above the holding ring 4 and an X-axis table 7 and a Y-axis table 8 are preferably attached to the guide ring 6 and also are driven with servomotors 14, 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a can body winding apparatus that can process a rectangular can body and can bodies having different sizes or shapes without using a copying cam.

  Conventionally, when manufacturing a can body by winding a lid around the end of the can body using a curl roller and a tightening roller with a rectangular can body or a can body of different size or shape, the cross-sectional shape of the can body The can body was manufactured by moving the curling roller and the tightening roller to the transverse cross section of the can body, and performing the can body winding operation. At this time, each time the cross-sectional shape of the can main body changes, a copying cam must be prepared, and a lot of time is required for replacing the copying cam, which is troublesome. Therefore, when the copying cam is replaced, the automatic production line is stopped, which results in a very large loss, and the increase in the number of replacement parts and the management thereof becomes complicated. It was difficult to reduce costs because adjustment by skilled technology was necessary.

  For this reason, in recent years, when a can body having a different size or shape is wrapped around the end of the can body using a curling roller and a tightening roller, the copying cam is not used. As an apparatus, for example, there is a can manufacturing apparatus proposed in JP-A-2001-259766. This machine can perform uniform winding without distortion such as when the can body having a cross-sectional shape other than a perfect circle, such as an ellipse, is processed at a constant speed according to the curl seam processing line. It is. This structure is a manufacturing apparatus for manufacturing a can body by winding a lid on each side of the can body and both sides of the can body on a rotating mold provided on a pedestal and a holding seat facing the pedestal so as to freely advance and retract, The holding seat, each rotating mold, the curl roller, and the tightening roller are linked to the servo motor, respectively, and the numerical control device includes the cross-sectional shape and height of the can body, the number of cut stages of the curl roller and the tightening roller, and the number of stages. Each cutting amount and the rotational speed of the rotating mold are written, and each servo motor is operated sequentially based on the information written in the numerical controller.

However, Japanese Patent Laid-Open No. 2001-259766 is a manufacturing apparatus for processing a can body having a cross-sectional shape other than a perfect circle, such as an ellipse, mainly used as an outer shell of an automobile silencer. There is no description and no idea of a can body winding device that can process can bodies that are different in size or shape without using a scanning cam.
JP 2001-259766 A

  The present invention eliminates the need for replacement of the copying cam and skill, reduces the number of replacement parts, simplifies the replacement work, supports various can shapes, significantly reduces the required time, and saves labor. An object of the present invention is to provide a can body winding apparatus that can greatly improve productivity.

  The present invention has been made to eliminate the above-mentioned drawbacks, that is, at least a chuck for fixing the can body, a curl roller, a tightening roller, a holding ring, and movable in the X-axis and Y-axis directions. The curling roller and the tightening roller are rotatably attached to the inner side of the holding ring, and the holding ring is rotatably attached to the guide ring. The holding ring may be attached to the rotational drive ring disposed above the holding ring so as to be horizontally movable. An X-axis table and a Y-axis table are attached to the guide ring, and the X-axis table and the Y-axis table are servo motors. It is preferable to be driven by.

  In a can body winding apparatus for manufacturing a can body by winding a lid (W2) around an end of a can body (W1) using a curling roller (2) and a tightening roller (3) as in claim 1. At least the chuck (1) for fixing the can body (W1), the curling roller (2), the tightening roller (3), the holding ring (4), and a guide ring movable in the X-axis and Y-axis directions ( 6) and the curling roller (2) and the clamping roller (3) are rotatably mounted facing the inner side of the holding ring (4) so that the holding ring (4) can be rotated on the guide ring (6). By attaching, the copying cam becomes unnecessary, so that replacement and skill are not required, the number of replacement parts can be reduced, the replacement work can be simplified, and various can shapes can be supported and the required time is reduced. Greatly shortened and labor saving Possible to significant productivity gains that than is possible. In particular, the downtime of the automatic production line can be extremely short, so that the cost can be reduced.

  By attaching the holding ring (4) to the rotary drive ring (10) arranged above the holding ring (4) as in claim 2, the periphery of the fixed can body can be easily tightened. Can be done.

  As shown in claim 3, the X-axis table (7) and the Y-axis table (8) are attached to the guide ring (6), and the X-axis table (7) and the Y-axis table (8) are attached to the servo motor (14), By driving at (16), the guide ring (6) can be accurately moved in the X-axis direction and the Y-axis direction, and can be moved arbitrarily according to the cross-sectional shape of the can body (W1). The winding process of the can of the shape and size is realized.

  FIG. 1 is a diagram showing an embodiment of the present invention, which will be described based on this. (1) is a chuck for fixing the can body (W1), and a removable stopper (1a) operated by an air cylinder (1b) is provided at the center of the chuck (1). (2) is a curling roller, and (3) is a clamping roller. (4) is an elliptical ring-shaped retaining ring that is rotatably mounted on the inside with the curling roller (2) and the tightening roller (3) facing each other (see FIG. 2). (5) is a pressure roller arranged in a pair for each of the curling roller (2) and the clamping roller (3), and the pressure roller (5) is attached to the lower part of the holding ring (4). It is supported rotatably. (6) is an annular and circular guide ring having concentric circular grooves into which two pairs of pressure rollers (5) are inserted (see FIG. 3), and the guide ring (6) is an X-axis. -It is provided so as to be movable in the Y-axis direction. The shape of the guide ring (6) is not limited to an annular shape, and may be, for example, an elliptical shape or a square shape. (7) is an X-axis table in which the guide ring (6) is fixed to the upper surface, and a hole is formed in the center thereof. (8) is a Y-axis table that is movable at right angles to the X-axis table (7), and a hole (8a) as shown in FIG. 4 is formed in the center of the Y-axis table (8). Further, between the X-axis table (7) and the Y-axis table (8), as shown in FIG. 3, two sets of track members (9) such as a linear ball rail that can move horizontally are provided in the left-right direction. Between the Y-axis table (8) and the plane portion of the airframe (18), two sets of track members (9) are provided in the front-rear direction as shown in FIG. (10) is a rotary drive ring disposed above the holding ring (4), and a raceway member such as a linear ball rail that can move horizontally between the rotary drive ring (10) and the holding ring (4). Two sets of (9) are provided. The rotary drive ring (10) applies a rotational force to the holding ring (4), while the holding ring (4) is horizontally movable with respect to the rotary drive ring (10).

  (11) is a rotation drive transmission means for transmitting the power of the rotation drive servomotor (12) to the rotation drive ring (10). The rotation drive transmission means (11) includes a rotation drive ring ( 10) the timing pulley (11a) fixed to the rotation drive servo motor (12), the driving pulley (11b) attached to the tip, and the belt (11c) connecting the driving pulley (11b) and the timing pulley (11a) ) (13) is an X-axis movement transmission means for transmitting the power of the X-axis movement servomotor (14) to the X-axis table (7). The X-axis movement transmission means (13) includes a guide. The X-axis table (7) with the ring (6) fixed on the upper surface is provided with a track member (9) for smoothly moving in the left-right direction in FIG. ) Is provided with a horizontal moving member (13a) that can be moved to the left and right by the rotation of the ball screw (131a). An X-axis pulley (13b) is attached to the end of the ball screw (131a), and an X-axis moving servo motor (14 The X-axis drive pulley (13c) is attached to the tip of the X-axis, and the X-axis drive pulley (13c) and the X-axis pulley (13b) are connected by the X-axis belt (13d) (see FIG. 3). . (15) is Y-axis movement transmission means for transmitting the power of the Y-axis movement servomotor (16) to the Y-axis table (8). The Y-axis movement transmission means (15) includes Y A track member (9) for allowing the shaft table (8) to move smoothly in the front-rear direction in FIG. 4 is disposed, and the Y-axis table (8) can be moved back and forth by rotating a ball screw (151a). A horizontal movement member (15a) is provided. A Y-axis pulley (15b) is attached to the end of the ball screw (151a), and a Y-axis drive pulley (15c) is attached to the tip of the Y-axis movement servo motor (16). The Y-axis drive pulley (15c) and the Y-axis pulley (15b) are connected by a Y-axis belt (15d) (see FIG. 4). (17) is a can lifting table that lifts and lowers the can body (W1) transported by the transport conveyor, and (18) is the machine body.

  Next, the operation of the present invention will be described. First, a mechanism in which the holding ring (4) of the present embodiment is rotated by the rotation drive ring (10) and moves in the horizontal direction will be described with reference to FIGS. First, when the rotation drive servomotor (12) is operated, the rotation drive ring (10) is rotated by the rotation drive transmission means (11). Furthermore, the holding ring (4) is rotated by interposing a raceway member (9) provided between the rotation driving ring (10) and the holding ring (4). The rotation drive transmission means (11) at this time will be described in detail. First, when the rotation drive servo motor (12) is operated, the drive pulley (11b) attached to the tip of the rotation drive servo motor (12) is also rotated. Since the timing pulley (11a) is connected to the drive pulley (11b) by the belt (11c), the timing pulley (11a) also rotates and the rotation drive ring (10) in which the timing pulley (11a) is integrated. Will also rotate. In this way, the holding ring (4) rotates through the two sets of raceway members (9), and the holding ring (4) can be moved horizontally by the raceway member (9) with respect to the rotary drive ring (10). It becomes. The horizontal movement at this time is defined as the Y-axis (front-rear) direction in the present invention.

  Next, a mechanism in which the guide ring (6) of this embodiment moves so as to be movable in the X-axis and Y-axis directions will be described with reference to FIGS. The guide ring (6) is fixed to the upper surface of the X-axis table (7). When the X-axis moving servo motor (14) is operated, the X-axis drive pulley (13c) attached to the tip of the guide ring (6) rotates. The X-axis pulley (13b) is rotated via the X-axis belt (13d). Then, the ball screw (131a) is rotated by the X-axis pulley (13b), and the rotation of the ball screw (131a) is rotated by the horizontal moving member (13a), and the X-axis table (7) is rotated by the rotation of the ball screw (131a). It is possible to move in the X axis (left and right) direction. Thus, the guide ring (6) can be moved horizontally by the horizontal moving member (13a) and the two sets of track members (9) arranged in the left-right direction. Further, since the guide ring (6) fixed to the upper surface of the X-axis table (7) is connected to the Y-axis table (8) through the X-axis table (7), the guide ring (6) It is also movable in the Y-axis (front-rear) direction. A mechanism in which the guide ring (6) moves in the Y-axis (front-rear) direction will be described. First, when the Y-axis moving servo motor (16) is actuated, the Y-axis drive pulley (15c) attached to the tip of the Y-axis moving pulley rotates, and the Y-axis pulley (15b) is interposed via the Y-axis belt (15d). It is rotated. Then, the ball screw (151a) is rotated by the Y-axis pulley (15b), and the Y-axis table (8) can be moved in the Y-axis (front-rear) direction as indicated by the arrow in FIG. 4 by the rotation of the ball screw (151a). Become. Thus, the guide ring (6) can be moved in the Y-axis by the two sets of track members (9) arranged on the horizontal moving member (15a) and the Y-axis table (8).

  Further, a structure in which the holding ring (4) is pressed by the pressure roller (5) inserted in the groove of the guide ring (6) will be described with reference to FIGS. Since the pressure roller (5) is rotatably attached to the lower part of the holding ring (4) and is inserted into the groove of the guide ring (6), the movement in the pre-programmed X and Y axis directions Depending on the amount, the X-axis table (7) and the Y-axis table (8) are moved, so that the pressure roller (5) is applied to the holding ring (4) while being inserted into the groove of the guide ring (6). Pressure acts. At this time, the rotational force is also applied to the holding ring (4) by the rotational drive ring (10) as described above.

  Next, an operation in which the can body winding operation is performed using the can body winding apparatus of the present invention without using the copying cam will be described with reference to FIG. First, when the power supply (not shown) is turned on, the servo motor for rotation drive (12), the servo motor for X-axis movement (14) and the servo motor for Y-axis movement (16) are activated and automatically set according to a preset program. Work begins. At this time, the rectangular can body (W1) transported by the transport belt is placed on the can lifting table (17) shown in FIG. 1, and the can lifting table (17) is raised and a lid is placed on the top of the can body (W1). (W2) is placed, and the can body (W1) and the lid (W2) are positioned by the stopper (1a) and fixed by the chuck (1) by operating the air cylinder (1b). Then, the curling roller (2) supported on one end of the holding ring (4) is brought into contact with the outer periphery of the lid (W2) and pressed to start curling the outer periphery of the lid (W2) on the upper part of the can body (W1). It is. At this time, the Y-axis table (8) moves backward, the holding ring (4) moves as indicated by the arrow shown in FIG. 5 (a), and the curling roller (2) is moved by the rotation drive ring (10). By rotating while being pressed, the lid (W2) begins to curl. The curling roller (2) includes a holding ring (4), a pressure roller (5), and a guide ring (6), and is pressed by the movement of the X-axis table (7) and the movement of the Y-axis table (8). Move to the right. At this time, since the distance (r) from the center of the can body (W1) to the center of the curl roller (2) is gradually increased, the holding ring (4) is gradually outside the rotational drive ring (10). It moves automatically to.

  Thereafter, when the curling roller (2) reaches the corner of the can body (W1) and passes through the corner, the distance (r) gradually increases to the tip of the corner, but then gradually decreases. Therefore, after the curling roller (2) passes through the position shown in FIG. 5 (b), the holding ring (4) is automatically moved gradually inward with respect to the rotational drive ring (10). Then, after the curling roller (2) passes through the position shown in FIG. 5 (c), the holding ring (4) is gradually moved outward with respect to the rotational drive ring (10). In this way, the curling roller (2) moves along the cross-sectional shape of the can body (W1) and comes to the original position in FIG. 5 (a). At this time, the pressure roller (5) goes around the guide ring (6) once. The position where the curl is started is not limited to the above position, and may be started from the corner of the can body (W1), for example. After that, the Y-axis table (8) is moved in the direction opposite to the arrow shown in FIG. 5 (a), the clamping roller (3) is brought into contact with the curled lid (W2), and the can (W1) is pressed. The lid (W2), which is curled by winding the upper part, is crushed. The movement of the tightening roller (3) at this time is substantially the same as that of the curling roller (2). Since the movements of the curling roller (2) and the clamping roller (3) are the same as those of the conventional movement and the carrying in / out of the can is substantially the same, further detailed description is omitted.

  In the embodiment of the present invention, the curling roller (2) and the clamping roller (3) are used separately, and the curling roller (2) and the clamping roller (3) have a cross-sectional shape of the can body (W1). The movement when moving along the axis uses the rotary drive servo motor (12), the X-axis movement servo motor (14), and the Y-axis movement servo motor (16). It is automatically operated. As a basic control method of the present invention, the distance (r) from the center of the can shape and the rotation angle can be set by numerical control by the servo motors (12), (14), (16). For example, it can handle various can shapes and sizes, and tracing eliminates the need for a large number of copying cams and eliminates the need for conventional mechanic parts required for each can. It is not necessary to replace the head, the required time is greatly shortened, and it becomes possible to save labor and greatly improve productivity.

It is explanatory drawing which shows the principal part cross section of embodiment of this invention. It is explanatory drawing which shows the relationship between the holding ring and rotation drive ring of this embodiment. It is explanatory drawing which shows the principal part plane of the mechanism in which the guide ring of this embodiment moves to a X-axis direction. It is explanatory drawing which shows the principal part plane of the mechanism in which the guide ring of this embodiment moves to a Y-axis direction with a Y-axis table. It is explanatory drawing which shows the state which the holding ring of this embodiment moves along the cross-sectional shape of a can main body.

Explanation of symbols

W1 can body
W2 Lid 1 Chuck 2 Curl roller 3 Tightening roller 4 Holding ring 6 Guide ring 7 X-axis table 8 Y-axis table
10 Rotating drive ring
14,16 Servo motor

Claims (3)

  In a can body clamping device for producing a can body by winding a lid (W2) around an end of a can body (W1) using a curling roller (2) and a tightening roller (3), at least the can body ( W1) is composed of a chuck (1), a curling roller (2), a tightening roller (3), a holding ring (4), and a guide ring (6) movable in the X-axis and Y-axis directions. Further, the curling roller (2) and the clamping roller (3) are rotatably attached to face the inside of the holding ring (4), and the holding ring (4) is rotatably attached to the guide ring (6). A can body winding device characterized by that.   The can body clamping device according to claim 1, wherein the holding ring (4) is attached to a rotary drive ring (10) disposed above the holding ring (4) so as to be horizontally movable. The X-axis table (7) and the Y-axis table (8) are attached to the guide ring (6), and the X-axis table (7) and the Y-axis table (8) are servomotors (14), (16). The can body clamping device according to claim 1, which is driven.