JP4963449B2 - Accumulator - Google Patents

Description

  The present invention provides a belt-like film that is installed between an upstream device that feeds a belt-like film and a downstream device that receives the belt-like film fed from the upstream device, and extends between the upstream device and the downstream device. The present invention relates to an accumulator that accumulates as necessary.

  For example, a container such as a bottle containing drinking water is covered with a cylindrical label made of a synthetic resin film such as a shrink label or a stretch label so as to cover the outer peripheral surface, and the contents are printed by printing on the label. Display of the component of a thing, the date of manufacture, etc. is performed.

  In the process of attaching such a cylindrical label to a container such as a bottle, a belt-like film is prepared in advance, which is folded into a sheet with the cylindrical label continuously connected, and the belt-like film is rolled. The belt-like film is fed out from the substrate roll wound in a shape, and the belt-like film is sequentially cut to form a cylindrical label, and the cylindrical label is attached to a container such as a bottle.

In such a process, it is necessary to periodically replace the base roll, and in order to continue the mounting of the cylindrical label without interruption even during the replacement work, as shown in FIG. Between the film delivery device (91) for feeding the belt-like film and the labeling device (92) for cutting the belt-like film sequentially to form a cylindrical label and mounting the cylindrical label on a container such as a bottle. Is installed.
When exchanging the base roll, a certain amount of belt-like film is accumulated in the accumulator (9) by the operation of the film delivery device (91), and then the belt-like film accumulated in the accumulator (9) is labeled with the labeling device (92 The base roll is exchanged in the film delivery device (91) within the period of time being supplied to).

  A specific configuration of the film delivery device (91) is proposed in Patent Literature 1 and Patent Literature 2, and a specific configuration of the labeling device (92) is proposed in Patent Literature 3.

  As shown in FIG. 11, the conventional general accumulator (9) has an accumulator box (93) for accumulating a belt-like film. During accumulating operation, the accumulator box (93) passes through an inlet roller (94). The belt-shaped film is fed into the accumulator box (93) and discharged to the outside of the accumulator box (93) through the exit roller (95) installed above the accumulator box (93). . On the other hand, during the through operation, the belt-like film is moved directly from the inlet roller (94) to the outlet roller (95) and is not accumulated in the accumulator box (93).

  However, in the accumulator device (9) shown in FIG. 11, the belt-like film is merely put into the accumulator box (93) at random, and the belt-like film is pulled out from the bottom of the accumulator box (93). Therefore, the belt-like film is in a messy state in the accumulator box (93) and may be entangled with each other during the drawing process to cause twisting or bending.

Therefore, a plurality of fixed rollers are arranged in the horizontal direction at the top of the accumulator box, and a plurality of movable rollers are arranged in the horizontal direction at the bottom of the accumulator box, and belt films are alternately hung between the fixed rollers and the movable rollers. An accumulator apparatus has been proposed in which a movable roller is lowered when a belt-like film is accumulated to secure a necessary accumulation amount, and when the belt-like film is discharged, the movable roller is raised and the belt-like film is fed out. (See Patent Document 4).
According to the accumulator, since the movement of the belt-shaped film is always guided by the plurality of fixed rollers and the movable roller, there is no possibility that the belt-shaped film is twisted or bent.

Japanese Patent Laid-Open No. 2004-10211 JP 2007-62920 A Japanese Patent No. 3670477 JP 2007-62884 A

  However, in the accumulator described above, the belt-like film moves in a state of being alternately wound between a plurality of fixed rollers and movable rollers not only during the accumulating operation but also during the through operation. However, there is a drawback that power loss occurs in the process of passing through the accumulator.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an accumulator that is free from the risk of twisting or bending of the belt-shaped film during accumulating operation, and that causes little loss of power during through operation.

The accumulator according to the present invention is installed between an upstream device that sends out the belt-like film and a downstream device that receives the belt-like film sent from the upstream device, and between the upstream device and the downstream device. The stretched belt-like film is accumulated in the film housing portion as necessary, and a film feeding mechanism (3) for feeding the belt-like film fed from the upstream device to the film housing portion side, and the film feeding mechanism ( 3) A swinging arm mechanism having an entrance and an exit for the belt-shaped film fed out from 3) and having a strip-shaped film passage extending from the entrance to the exit, and swinging the exit side on the film accommodating portion around the entrance side ( 4) and the movement path of the belt-like film is regulated so that the belt-like film is pulled out rearward from the film housing portion, A film discharge mechanism (7) for discharging toward the downstream device, the swing arm mechanism (4) position by turning the, on a straight line path connecting the inlet of said downstream device and the outlet of the upstream device And a posture changing mechanism (8) for holding the passage .

In the accumulator of the present invention, the film feeding mechanism (3) starts to operate as the through operation is switched to the accumulating operation, and the belt-like film is fed toward the film accommodating portion and the swing arm mechanism ( 4) Starts swinging, pendulum motions the exit of the strip film, and discharges the strip film from the exit.
When the belt-like film is discharged from the exit of the swing arm mechanism (4), the outlet reciprocates on the film housing portion by the pendulum movement, so that the belt-like film discharged from the outlet is placed on the film housing portion. It is folded and accumulated in a stacked state.

  And the strip | belt-shaped film accumulate | stored on the film accommodating part is discharged toward a downstream apparatus from a film accommodating part with the driving | operation of a downstream apparatus. At this time, since the belt-shaped film is pulled out through the film discharge mechanism (7), the pulling-out direction is defined as the direction of pulling the belt-shaped film backward from the lower layer portion. As a result, the belt-like film in the film accommodating portion is sequentially drawn out from the lowermost layer, and the laminated state is not greatly broken.

Thereafter, during the through operation, the forcible feeding of the strip film by the film feeding mechanism (3) is stopped and the swinging of the swing arm mechanism (4) is stopped. As a result, the belt-like film fed from the upstream device passes through the film feed mechanism (3), the swing arm mechanism (4), and the film discharge mechanism (7) with almost no resistance, and the downstream device. To.
More specifically, the posture changing mechanism (8) is operated in accordance with the switching from the accumulating operation to the through operation, and the belt-shaped film passage from the entrance to the exit of the swing arm mechanism (4) is connected to the upstream side device. It is held on a straight path connecting the outlet of the apparatus and the inlet of the downstream apparatus. As a result, the belt-like film fed from the upstream device can move on a straight line to the downstream device through the path of the swing arm mechanism (4). Therefore, the resistance that the belt-shaped film receives from the swing arm mechanism (4) becomes zero.

In a specific configuration, the film feeding mechanism (3) includes a pair of feeding rollers (32) and (33) capable of sandwiching the belt-shaped film fed from the upstream device, and the pair of feeding rollers (32). And a drive mechanism for rotating (33) in opposite directions.
According to the specific configuration, during the accumulating operation, the belt-like film fed from the upstream device is driven by the pair of feeding rollers (32) and (33) and fed to the inlet of the swing arm mechanism (4).

In another specific configuration, the film feeding mechanism (3) further includes a reciprocation for causing at least one of the pair of feeding rollers (32) and (33) to approach and separate from the other feeding roller. Has equipment.
According to the specific configuration, when the accumulating operation is switched to the through operation, at least one of the feeding rollers is separated from the other feeding roller, and the belt-like film formed by the pair of feeding rollers (32) and (33). The pinching pressure is released. As a result, during the through operation, the belt-like film passes between the feeding rollers (32) and (33) with almost no resistance.

In another specific configuration, the swing arm mechanism (4) includes an endless footwear stretched along the passage, and the endless footwear is driven to go around, whereby the belt-like film of the endless footwear is provided. Is moved in the traveling direction of the belt-like film.
According to the specific configuration, during the accumulating operation, the belt-like film receives a propulsive force from the endless footwear in the process in which the belt-like film travels through the path of the swing arm mechanism (4). As a result, the belt-like film Will move smoothly along the passageway.

In a more specific configuration, the moving speed of the endless footwear of the swing arm mechanism (4) is set to be higher than the feeding speed of the belt-like film by the film feeding mechanism (3).
In the specific configuration, slip friction is generated between the belt-like film and the endless footwear, and this causes a sufficiently large driving force to act on the belt-like film, so that the belt-like film may be clogged in the middle of the passage. Absent.

  In another specific configuration, the swing arm mechanism (4) includes a pair of swing arms (41) and (42) juxtaposed at a distance from each other, and the swing arms (41) and (42). 1 which is stretched between the guide rollers (45) and (46) rotatably installed at the upper and lower ends of each of the guide rollers and the guide rollers (45) and (46) of the swing arms (41) and (42). Alternatively, it includes a plurality of wires (43) and a drive mechanism that rotationally drives one of the guide rollers, and the passage is formed between the pair of swing arms (41) and (42), The endless footwear is constituted by a plurality of wires (43).

In the specific configuration, during the accumulating operation, the wires (43) and (43) of both the swinging arms (41) and (42) move around, the portion facing the belt-like film moves in the traveling direction of the belt-like film, Propulsion is given to the strip film. Here, a gap larger than the thickness of the belt-like film is provided between the two wires (43) and (43) that sandwich the belt-like film from both sides, but the belt-like film is attached to one of the wires (43). Contact and receive propulsive force from the wire (43).
During the through operation, the driving of the wires (43) and (43) of both swing arms (41) and (42) is stopped, and the strip-like film is sandwiched between the plurality of wires (43) and (43) sandwiching the strip-like film from both sides. Passes almost without resistance.

  In another specific configuration, the film discharge mechanism (7) is composed of one or a plurality of outlet rollers disposed at a rear position of the film accommodating portion, and the film discharge mechanism (7) includes the above-described film discharge mechanism (7). A drive mechanism for reciprocally moving one or a plurality of outlet rollers between a rear position of the film accommodating portion and a position along a straight path connecting the outlet of the upstream device and the inlet of the downstream device is connected. ing.

According to this specific configuration, at the time of the accumulating operation, one or a plurality of outlet rollers of the film discharge mechanism (7) are held at the rear position of the film accommodating portion. As a result, it becomes possible to pull out the belt-like film of the film housing portion backward. In the through operation, one or more outlet rollers of the film discharge mechanism (7) are held at positions along a straight path connecting the outlet of the upstream device and the inlet of the downstream device. As a result, the belt-like film that has passed through the swing arm mechanism (4) is discharged to the downstream device through the film discharge mechanism (7) with almost no contact with one or more outlet rollers of the film discharge mechanism (7). Will be.
Therefore, the resistance that the belt-shaped film receives from the film discharge mechanism (7) becomes substantially zero.

According to the accumulator according to the present invention, the belt-like film is folded and accumulated on the film housing portion during the accumulating operation, and the belt-like film is sequentially drawn out from the lowermost layer, so that the belt-like film in the film housing portion is folded. There is no risk of twisting or bending of the belt-like film that is pulled out. However , during the through operation, the posture changing mechanism (8) operates, and the belt-like film is almost on the straight path connecting the film feeding mechanism (3), the swing arm mechanism (4) and the film discharging mechanism (7). Since it passes without receiving resistance, there is no great power loss.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments in which the present invention is implemented in an accumulator that is to be disposed between a film delivery apparatus and a labeling apparatus will be specifically described below with reference to the drawings. In the following description, the film delivery apparatus side that is the upstream apparatus is referred to as the front, and the labeling apparatus side that is the downstream apparatus is referred to as the rear. The right side from the front to the rear is simply called the right side, and the left side from the front to the rear is simply called the left side.

[overall structure]
As shown in FIG. 1, in the accumulator device (1) according to the present invention, a rectangular parallelepiped accumulator box (2) is installed at the bottom of a frame-shaped base frame (11), and the accumulator box (2) is located above the accumulator box (2). At the position, a film feeding mechanism (3) and a swing arm mechanism (4) are provided. A film discharge mechanism (7) is provided behind the accumulator box (2).
The accumulator box (2) has an opening (21) in the upper part and an outlet (23) in the lower part of the rear vertical wall. The belt-like film is introduced from the opening (21), and the belt-like film is introduced from the outlet (23). Pulled out.

10A and 10B show the basic configuration and operation of the accumulator device 1 according to the present invention. FIG. 10A shows the state of the accumulator device 1 during the accumulating operation. FIG. 10 (b) shows a state during the through operation of the accumulator (1).
A plurality of support bars (22) are installed horizontally on the bottom of the accumulator box (2), and a strip film is folded and accumulated on these support bars (22). These support bars (22) are juxtaposed at intervals in the front-rear direction along an arc line that swells upward, whereby two folded portions when the belt-like film is folded into a plurality of layers. Is balanced with the height at the center between the folded portions.

  The film feeding mechanism (3) includes a pair of feeding rollers (32) and (33) that rotate in reverse to each other, and sandwiches the belt-like film F between the feeding rollers (32) and (33) to provide a film feeding device (shown in the figure). The belt-like film F fed out from (omitted) is fed out toward the swing arm mechanism (4).

The swing arm mechanism (4) includes a pair of swing arms (41) and (42) disposed so as to be swingable in a vertical plane below the film feeding mechanism (3). ) (42), a belt-like film passage fed out from the film feeding mechanism (3) is formed, and the movement of the belt-like film is guided from the entrance to the outlet of the passage.
The swing arm mechanism (4) has a swing center on the upper end side of both swing arms (41) and (42), and swings within a predetermined angle range in the vertical plane during the accumulating operation. Pendulum movement of film exit. As a result, the strip film F discharged from the exit of the strip film is folded on the plurality of support bars (22) with the pendulum movement of the exit, and is accumulated in an orderly laminated state as shown by a chain line. become.

The belt-like film F accumulated in the accumulator box (2) is discharged backward through the film discharge mechanism (7) in accordance with the operation of a labeling device (not shown) which is a downstream device.
The film discharge mechanism (7) is composed of a first outlet roller (71) and a second outlet roller (72) arranged at a rear position of the laminated film film in the accumulation box (2). Is drawn out through the film discharge mechanism (7), the drawing direction is defined so as to draw the belt-like film backward from the lowermost layer. As a result, the belt-like film in the accumulator box (2) is pulled out sequentially from the lowermost layer, and the laminated state does not collapse greatly.

Thereafter, during the through operation, the forcible feeding of the strip film by the film feeding mechanism (3) is stopped and the swinging of the swing arm mechanism (4) is stopped. Further, the pair of feeding rollers (32) and (33) constituting the film feeding mechanism (3) are separated from each other, and the postures of the film feeding mechanism (3) and the swing arm mechanism (4) are as shown in FIG. The pair of feeding rollers (32) and (33) of the film feeding mechanism (3) and the pair of swinging arm mechanisms (4) are arranged on both sides across a straight path from the film feeding device to the labeling device. The swing arms (41) and (42) are arranged.
Further, the first outlet roller 71 and the second outlet roller 72 constituting the film discharge mechanism 7 are lifted, and the first outlet rollers are provided on both sides across a straight path from the film delivery device to the labeling device. (71) and the second outlet roller (72) are arranged.

  Accordingly, the belt-like film F fed from the film feeding apparatus passes through the film feeding mechanism (3), the swing arm mechanism (4) and the film discharging mechanism (7) with almost no contact with the constituent members of those mechanisms. Thus, the labeling device is reached, and the resistance received by the strip film in this process is extremely small.

[Film feed mechanism (3)]
As shown in FIG. 1, the film feeding mechanism (3) rotates the pair of feeding rollers (32) and (33) by using the electric motor (10) installed on the base frame (11) as a drive source. is there.
As shown in FIG. 3, a main shaft (30) extending in the horizontal direction is installed on the base frame (11). Both ends of the main shaft (30) are respectively supported by bearings (34) and (34). ) Is supported on.

As shown in FIG. 1, a movable frame (31) having a pair of left and right side plates (31a) (31b) and a back plate (31c) is pivotally supported on the main shaft (30).
Further, a support frame (35) is provided inside the both side plates (31a) and (31b) of the movable frame (31), and an air cylinder device (36) attached to the back plate (31c) of the movable frame (31). ) Rod (36a) is connected to the support frame (35).

  A first feeding roller (32) is attached to the inner side of both side plates (31a) and (31b) of the movable frame (31) so as not to rotate relative to the main shaft (30). A second feed roller (33) having a rotation axis parallel to the rotation axis of the first feed roller (32) is pivotally supported on the inner side, and the second feed roller (36) is driven by the air cylinder device (36). By reciprocating 33), the second feeding roller (33) approaches and separates from the first feeding roller (32).

As shown in FIG. 5, a driving pulley (12) is attached to the output shaft of the electric motor (10), and a driven pulley (13) is attached to the left end of the main shaft (30). ) And a driven pulley (13), a timing belt (14) is stretched.
Therefore, when the electric motor (10) is started, the rotation of the electric motor (10) is transmitted to the main shaft (30), and the first feeding roller (32) rotates with the rotation of the main shaft (30). At this time, if the second feeding roller (33) is pressed against the first feeding roller (32) by the operation of the air cylinder device (36), the second feeding roller is rotated along with the rotation of the first feeding roller (32). (33) will also rotate.

  As shown in FIG. 2, the belt-like film F fed from the upstream film feeding device (not shown) extends horizontally toward the film feeding mechanism (3), and the first feeding roller (32) and the second feeding roller. Enter between (33). Then, the belt-like film F is squeezed by the swinging arm mechanism (4) by the rotational drive of the first feeding roller (32) by the electric motor (10) in a state of being pressed between the feeding rollers (32) and (33). It is drawn out at a constant speed toward.

[Oscillating arm mechanism (4)]
As shown in FIG. 6, a swing block (51) having a pair of left and right side plates (51a) and (51b) is pivotally supported by both side plates (51a) and (51b) at the center of the main shaft (30). The above-mentioned pair of swing arms (41) and (42) are integrally projected on the swing block (51).
Therefore, when the swing block (51) swings about the main shaft (30), the lower end portions of both swing arms (41) and (42) perform pendulum movement in the vertical plane.

Each of the first swing arm (41) and the second swing arm (42) has a rectangular frame shape as a whole, and both the swing arms (41) (42) are predetermined in the front-rear direction. Opposite each other with a gap, a passage through which the belt-like film passes is formed between the swing arms (41) and (42).
Guide rollers that are rotatably mounted between the side plates (51a) and (51b) of the swing block (51) at the upper ends of the first swing arm (41) and the second swing arm (42), respectively. (45) is deployed horizontally. On the other hand, a guide roller (46) is disposed horizontally at the lower ends of the first swing arm (41) and the second swing arm (42).
Four wires (43) are stretched in parallel between the upper and lower guide rollers (45) and (46) of the first swing arm (41), and the second swing arm (42) Four wires (43) are stretched in parallel between the upper and lower guide rollers (45) and (46).

A driving roller (54) is attached to the outer side of the left side plate (51a) of the swing block (51) so as not to rotate relative to the main shaft (30), and the guide of the first swing arm (41). A driven roller (55) is attached to the roller (45) so as not to be relatively rotatable, and a timing belt (56) is stretched between the driving roller (54) and the driven roller (55).
Further, on the outside of the right side plate portion (51b) of the swing block (51), there are a guide roller (45) of the first swing arm (41) and a guide roller (45) of the second swing arm (42). On the other hand, gears (52) and (53) are attached so as not to rotate relative to each other, and both gears (52) and (53) mesh with each other.
Accordingly, when the rotation of the main shaft (30) is transmitted to the guide roller (45) of the first swing arm (41), the rotation of the guide roller (45) passes through the gears (52) and (53) to the second swing. This is transmitted to the guide roller (45) of the arm (42), and both guide rollers (45) and (45) rotate in opposite directions.

As a result, the wire (43) stretched between the guide rollers (45) and (46) of the swing arms (41) and (42) makes a circular movement.
Here, the four wires (43) of the first oscillating arm (41) and the four wires (43) of the second oscillating arm (42) are both oscillated as shown by a chain line in FIG. The wire (43) and (43) facing each other across the belt-like film passage between the moving arms (41) and (42) extend in the same direction as the traveling direction (downward) of the belt-like film. Will move.
The moving speed of the wire (43) is slightly higher than the feeding speed of the belt-like film by the film feeding mechanism (3), and is set within a range of, for example, 1.01 to 1.5 times. Further, a gap larger than the thickness of the belt-like film is provided between the wires (43) and (43) facing each other.

  As shown in FIG. 1, a driving roller (64) is attached to the outer side of the right side plate (31b) of the movable frame (31) so as not to rotate relative to the main shaft (30), and the driving roller (64). The driven roller (65) is pivotally supported at a lower position of the roller, and a timing belt (66) is stretched between the driving roller (64) and the driven roller (65).

As shown in FIG. 6, the driven roller (65) is provided with a shaft (63) projecting from the left side so as not to rotate relative to the left side, and a crank arm (61) is fixed to the tip of the shaft (63). ing. One end of the crank arm (61) is pivotally supported by a base end of a rod (62), and the tip of the rod (62) is connected to a swing block (51). The crank mechanism (6) is constituted by 61) and the rod (62).
Therefore, the rotation of the main shaft (30) is transmitted to the shaft (63), and when the shaft (63) rotates, the rotation of the shaft (63) is converted into the reciprocating motion of the rod (62), and the swing block (51 ) Is driven to swing.
As the swing block (51) swings, the first swing arm (41) and the second swing arm (42) swing within a predetermined angle range as shown in FIG.

[Posture change mechanism (8)]
As shown in FIGS. 1 and 2, an air cylinder device (80) is attached to the base frame (11), and the tip of the rod (80a) of the air cylinder device (80) is a movable frame as shown in FIG. It is connected to the left side plate (31a) of (31).
During the accumulating operation, as shown in FIG. 2, the rod (80a) of the air cylinder device (80) is held in the retracted position, and supports the movable frame (31) at a fixed position.
During the through operation, the rotation drive of the film feed mechanism (3) and the swing drive of the swing arm mechanism (4) are stopped, and then the rod (80a) of the air cylinder device (80) moves forward as shown in FIG. Then, the movable frame (31) is rotationally driven counterclockwise to change the posture of the film feeding mechanism (3) and the swing arm mechanism (4).

  As shown in FIG. 8, the attitude of the film feeding mechanism (3) and the swing arm mechanism (4) is changed by the attitude changing mechanism (8), and the second feeding roller (33) of the film feeding mechanism (3) is the first. In a state of being separated from the feed roller (32), the second feed roller (33) is separated from the linear path from the film delivery device to the labeling device, and the first swing arm (41) and the second swing arm (42). ) Is held in a horizontal posture along the straight path.

[Film Ejection Mechanism (7)]
As shown in FIGS. 2 and 4, the base frame (11) is provided with two guide shafts (74) and (74) extending vertically at the rear position of the accumulator box (2). As shown in FIG. 2, a slider (75) is slidably engaged with each guide shaft (74), and an elevating member (76) is connected to the slider (75). The first outlet roller (71) and the second outlet roller (72) are horizontally installed between the lifting members (76) and (76) on both sides as shown in FIG.

As shown in FIG. 2, shafts 73a and 73b are installed horizontally on the upper and lower ends of the rear vertical frame portion 11a of the base frame 11 and are attached to the upper shaft 73a. A pair of driving pulleys (77) and (77) are attached so as not to rotate relative to each other, and a pair of driven pulleys (78) and (78) are attached to the lower shaft (73b) so as not to rotate relative to each other. 77) and a timing belt (79) are stretched between each driven pulley (78). Each slider (75) is connected to each timing belt (79).
Further, as shown in FIG. 9, an electric motor (70) is attached to the rear vertical frame portion (11a) of the base frame (11), and the output shaft of the electric motor (70) is located on the upper side shown in FIG. The shaft (73a) is rotationally driven in connection with the shaft (73a).

  The rotation of the shaft (73a) is transmitted from the driving pulley (77) to the driven pulley (78) via the timing belt (79), and the timing belt (79) moves around. Along with this, the slider (75) moves up and down together with the lifting member (76), and as the lifting member (76) moves up and down, the first outlet roller (71) and the second outlet roller (72) move up and down.

  Incidentally, when the first outlet roller (71) and the second outlet roller (72) are raised to the rising end as shown in FIG. 2, the film discharge mechanism (7) has a first outlet roller (71) as shown by a chain line. ) Is rotated 180 degrees counterclockwise, and a reversing mechanism (not shown) is connected to reverse the vertical positional relationship between the first outlet roller (71) and the second outlet roller (72).

During the accumulating operation, as shown by the solid line in FIG. 2, the first outlet roller (71) and the second outlet roller (72) are held at the rear position of the laminated film film accumulated in the accumulator box (2). The belt-like film drawn from the outlet opened at the bottom of the accumulator box (2) is first wound clockwise around the first outlet roller (71) and then counterclockwise around the second outlet roller (72). After being wound in the direction, it is discharged toward the downstream labeling device.
At the time of through operation, as shown in FIG. 8, the first outlet roller (71) and the second outlet roller (72) rise to the rising end, and the first outlet roller (71) and the second outlet roller (72) are lowered downward across the straight path from the film delivery device to the labeling device. One exit roller (71) is disposed, and a second exit roller (72) is disposed above, and the belt-like film F passes between the exit rollers (71) and (72) and then travels toward the downstream labeling device. Will move.

[Operation]
In the accumulator (1), during the accumulating operation, the belt-like film F is swung between the first feeding roller (32) and the second feeding roller (33) of the film feeding mechanism (3). It is paid out toward the mechanism (4).
As a result, the belt-like film F travels from the entrance to the exit of the passage formed between the first swing arm (41) and the second swing arm (42), and is discharged downward from the exit. In this process, the wire portion on the belt-like film side of the wires (43) and (43) stretched on both swing arms (41) and (42) is slightly in the traveling direction of the belt-like film in the traveling direction. Since it is moving at a high speed, the belt-like film traveling in the path between the two swing arms (41) and (42) receives the driving force accompanying the slip friction from the wire (43) and is always stretched in the path. Will not clog in the passage.

  In addition, although the space | interval larger than the thickness of a strip | belt-shaped film is provided between the two wires (43) (43) which pinch | interpose a strip | belt-shaped film from both sides, a strip | belt-shaped film has either wire (43). The contact force is received from the wire (43).

The belt-like film released from the swing arm mechanism (4) is folded as shown in FIG. 10 (a) along with the swing of both swing arms (41) and (42), and is stored in the accumulator box (2). Accumulated in.
The belt-like film accumulated in the accumulation box (2) is discharged to the downstream labeling device through the first outlet roller (71) and the second outlet roller (72) as shown in FIG. Here, since the first outlet roller (71) is arranged behind the laminated film film in the accumulator box (2), the belt film in the accumulator box (2) is drawn out rearward. become.
Therefore, the laminated state of the band-shaped film in the accumulator box (2) is not greatly collapsed, and therefore there is no possibility that the band-shaped film is twisted or bent during the process of drawing the band-shaped film.

When the exchange of the base material roll in the upstream film delivery device is completed during the accumulating operation, the accumulating device (1) is switched to the through operation.
Along with this, the electric motor (10) stops, and the rotation of the first feeding roller (32), the swing of both swing arms (41) and (42), and the circular movement of the wire (43) stop. Further, the second feeding roller (33) is separated from the first feeding roller (32).
Then, the air cylinder device (80) of the posture changing mechanism (8) operates to change the postures of the film feeding mechanism (3) and the swing arm mechanism (4) as shown in FIG. Further, the first outlet roller (71) and the second outlet roller (72) of the film discharge mechanism (7) rise to the rising end, and the upper and lower sides of the first outlet roller (71) and the second outlet roller (72) are raised and lowered. The positional relationship is reversed.

As a result, as shown in FIG. 8, the belt-like film F fed from the upstream film feeding device is merely in sliding contact with the first feeding roller (32) of the film feeding mechanism (3), and is almost in contact with other members. Without passing, it passes through the swing arm mechanism (4) and the film discharge mechanism (7) and moves to the downstream labeling device.
Accordingly, during the through operation, the belt-like film F moves from the film feeding device to the labeling device with almost no resistance, and the power loss in the process becomes almost zero.

It is a perspective view showing the whole accumulator device concerning the present invention. It is a side view of the accumulator. It is a longitudinal cross-sectional view of this accumulator. It is a top view of the accumulation box on a base frame. It is a perspective view which shows a film delivery mechanism and a posture change mechanism. It is a perspective view which shows a rocking | fluctuation arm mechanism. It is a side view which shows operation | movement of a rocking | swiveling arm mechanism. It is a side view which shows operation | movement of a posture change mechanism. It is a longitudinal cross-sectional view which shows a film discharge mechanism. It is explanatory drawing which shows the fundamental structure and operation | movement of the accumulator which concerns on this invention. It is a side view which shows the structure of the conventional accumulator. It is a block diagram explaining arrangement | positioning of an accumulator.

Explanation of symbols

(1) Accumulator
(11) Base frame
(10) Electric motor
(2) Accum box
(3) Film feeding mechanism
(31) Movable frame
(32) First feed roller
(33) Second feed roller
(4) Swing arm mechanism
(41) First swing arm
(42) Second swing arm
(43) Wire
(51) Swing block
(6) Crank mechanism
(7) Film discharge mechanism
(71) First exit roller
(72) Second exit roller
(8) Posture change mechanism
(80) Air cylinder device

Claims (8)

A belt-like film that is installed between the upstream device that feeds the belt-like film and the downstream device that receives the belt-like film fed from the upstream device and extends between the upstream device and the downstream device as needed. In the accumulator that accumulates in the film container,
A film feeding mechanism for feeding the belt-like film fed from the upstream device to the film accommodating portion side;
A swing arm having an entrance and an exit for the strip-shaped film fed out from the film feed mechanism and a passage for the strip-shaped film extending from the entrance to the exit, and swinging the exit side on the film accommodating portion around the entrance side Mechanism,
A film discharge mechanism that regulates the movement path of the belt-like film so that the belt-like film is drawn backward from the film accommodating portion, and discharges the belt-like film toward the downstream device ;
A posture changing mechanism for changing the posture of the swing arm mechanism and holding the passage on a linear path connecting the outlet of the upstream device and the inlet of the downstream device. A characteristic accumulator.   The film feeding mechanism includes a pair of feeding rollers capable of sandwiching a belt-shaped film fed from the upstream device, and a drive mechanism for rotating the pair of feeding rollers in opposite directions. Item 2. The accumulator according to Item 1.   3. The accumulator according to claim 2, wherein the film feeding mechanism further includes a reciprocating device that moves at least one of the pair of feeding rollers toward and away from the other feeding roller.   The swing arm mechanism includes an endless footwear stretched along the passage, and the endless footwear is driven to go around so that a portion of the endless footwear facing the belt-like film moves in the traveling direction of the belt-like film. The accumulator according to claim 1, which is moved to the position.   The accumulator according to claim 4, wherein the moving speed of the endless footwear of the swing arm mechanism is set to be equal to or higher than the feeding speed of the belt-like film by the film feeding mechanism.   The swing arm mechanism includes a pair of swing arms juxtaposed at a distance from each other, guide rollers rotatably installed at the upper end and lower end of each swing arm, and both guides of each swing arm. One or a plurality of wires stretched between the rollers, and a drive mechanism for rotationally driving any one of the guide rollers, and the passage is formed between the pair of swing arms, and the one or a plurality of the wires are formed. The accumulator according to claim 4 or 5, wherein the endless shoe is constituted by a wire. The accumulator according to any one of claims 1 to 6 , wherein the film discharge mechanism includes one or a plurality of outlet rollers disposed at a rear position of the film accommodating portion. The film discharge mechanism is connected to a drive mechanism that reciprocates the one or more exit rollers, and the one or more exit rollers are connected to a rear position of the film accommodating portion, an outlet of the upstream device, and the The accumulator according to claim 7 , wherein the accumulator can reciprocate between a position along a straight path connecting the inlets of the downstream devices.

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