JPH059177B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a can lid tightening device for tightening a can lid onto a can container.

(Prior Art) Conventionally, when a can lid is tightened while transporting the can container after filling the can container with contents, for example,
The filled can container is conveyed by a belt conveyor and then stopped by a disc-shaped supply turret, and a can lid is placed over the can container while it is being rotationally guided by the turret. The can container is delivered to a seaming turret, and while being rotated by the turret, it is pressed against a seaming means such as an arc-shaped seaming rail provided along the outer periphery of the turret, and the can container is sealed. Can lids were being tightened.

According to such a device, as each turret rotates, the direction of conveyance of the cans conveyed by the turrets constantly changes in an arc shape, and centrifugal force acts on the contents inside the cans, causing the contents to It becomes easy to overflow. Therefore,
The faster the can container is conveyed, the less it becomes possible to prevent the contents from overflowing, and the tightening speed of can lids that can prevent the contents from overflowing is 200 times per minute.
The limit was between 250 and 250 pieces.

For this purpose, the present applicant first applied for patent application No. 63-141482.
No. 1, we proposed a seaming device that can prevent the contents from overflowing when seaming the can lid onto the can body and can tighten the can lid at high speed.

As shown in Figure 18, the seaming device B is for seaming the can lid Y supplied from the can lid supplying device C to the can container X filled with contents by the filling device A. The can lid Y is first seamed to the can container X in the device B, and then the second seam is applied in the second seam device D to complete the double seaming.

In the seaming device B, the can container X is transported by a first can container transport means 1 comprising an endless chain 101 that locks the rear side of the can container X with a claw piece 100 and transports the can container X.
03 in a straight line.

The can container X is endless and rotated in a substantially elliptical shape, and one side of the can container X moves linearly in parallel with the first can container transport device 103.
Delivered to 04.

As shown in FIGS. 19 and 20, the second can/container conveying means 104 includes a rotatable support table 10.
5. Can lid holding means 1 is provided with a seaming chuck 106 facing and above the second can container conveying means 104 for adsorbing and holding the can lid Y.
07 is integrally provided with a can lid conveying means 108 which is rotatable and movable up and down.

Second can container conveying means 104 and can lid conveying means 10
8 is composed of a plurality of transport blocks 109 integrally provided with a seaming chuck 106 at the upper part and a support table 105 at the lower part, connected by an endless chain 110, and by rotating the endless chain 110, the can The container X and the can lid Y are conveyed at the same time. The can container X transferred from the first can container transport means 103 to the support table 105 of the second can container transport means 104 is transported by the second can container transport means 104 while being transported by the can lid transport means 108. The can lid holding means 107 is lowered by a lifting means (not shown) to cover the opening of the can container X with the can lid Y, which has already been supplied from the can lid supply device C and held by suction to the can lid holding means 107. Ru.

Then, the can container X and the can lid Y, which are held between the can lid holding means 107 and the second can container conveying means 104, are rotated together by the rotation driving means and rolled along the linear seaming means 112. let The rotation driving means includes a pinion gear 113 on the outer periphery of the can lid holding means 107, and a rack 114 that meshes with the pinion gear 113 is provided in the transport direction along a seaming rail 115, which is the seaming means 112. There is. The second can/container conveying means 104, which holds the can lid Y in pressure contact with the can container X on the support table 105 by the can lid holding means 107, moves linearly with the pinion gear 113 and the rack 114. The can container X is conveyed in a straight line while being rotated through the can lid holding means 107 by the engagement of the can container X with the can lid holding means 107. In the process, the seaming portions of the can container X and the can lid Y are pressed against the seaming rail 115, which is the seaming means 112, and the can lid Y is seamed to the can container X.

According to the seaming device, seaming is performed while being conveyed linearly at a constant speed, and the conveying direction of the can container X does not change, so even if the seaming speed of the can lid Y is increased, the contents do not overflow. It can be suppressed and the productivity of canning can be improved.

In this seaming device, in order to further increase production efficiency, when the conveying speed is increased, the second can container conveying means 104 and the can lid conveying means 108, which are endlessly rotated in a substantially elliptical shape, are rotated in an arc shape. When the pinion gear 113 starts to engage with the rack 114, the pinion gear 113 and the rack 114 are engaged with each other.
and suddenly begin to mesh. At this time, the teeth of the pinion gear 113 and the teeth of the rack 114 may be damaged, and if these teeth are damaged,
Since there is a problem in the rotational drive of the can lid Y and the can container X during seaming, there is an inconvenience that reliable seaming cannot be performed.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned inconveniences by smoothing the rolling start and rotational drive of the can lid and the can container, so that the can lid and the can container can be easily tightened when the can lid is tightened. An object of the present invention is to provide a can lid seaming device that can increase the conveyance speed of can lids.

(Means for Solving the Problem) In order to achieve the above object, a first aspect of the present invention is to deliver a can container to a can container conveying means that rotates on an endless orbit having a linear orbit portion. The can container is rotatably supported and transported by the transport means, and is rotatably and vertically mounted on the can lid transport means which moves in synchronization with the can container transport means, facing above the can container transport means. The can lid is removably held by the can lid holding means, and the can lid is conveyed, and the can lid holding means is lowered to cover and hold the can lid held by the can lid holding means over the can container. , a can in which the can lid is tightened to the can container by rotating both together by a rotary drive means on the linear track portion and rolling along the linear tightening means and pressurized against the tightening means. In the lid seaming device, the rotation driving means includes a pinion gear coaxially and rotatably provided integrally with the can lid holding means, and a rack provided parallel to the seaming means with which the pinion gear meshes. a rail extending upstream from the tip of the rack in the conveying direction; and a rail for positioning the pinion gear at a position where it meshes with the rack when sliding in contact with the rail. It is characterized by having a sliding plane that is coaxial and rotatable integrally with the pinion gear.

Further, in the seaming device, the can/container conveying means may also be provided with a rotational drive means similar to the rotational drive means of the first aspect.

In a second aspect of the present invention, the rotational drive means includes a pinion gear coaxially and rotatably provided integrally with the can lid holding means, and a pinion gear provided in parallel with the seaming means with which the pinion gear meshes. a protruding part rotatably provided integrally with the pinion gear; and when the protruding part is engaged, the pinion gear is rotated to a position where it meshes with the rack. It is characterized in that an engaging portion provided on the upstream side in the direction is additionally provided.

Further, in the seaming device, the can/container conveying means may also be provided with a rotational drive means similar to the rotational drive means of the second aspect.

Further, a third aspect of the present invention of the rotational drive means includes a pinion gear coaxially and rotatably provided integrally with the can lid holding means, and a pinion gear provided in parallel with the seaming means. It is characterized by consisting of a rack in which the part that starts to engage can swing elastically in the horizontal direction.

Further, in the seaming device, the can/container conveying means may also be provided with a rotational drive means similar to the rotational drive means of the third aspect.

Further, a fourth aspect of the present invention of the rotational drive means includes a roll portion having a high friction coefficient that is rotatably coaxially provided integrally with the can lid holding means, and the seaming means that frictionally engages with the roll portion. It is characterized by consisting of a rail with a high coefficient of friction provided parallel to the rail.

Further, in the seaming device, the can/container conveying means may also be provided with a rotational drive means similar to the rotational drive means of the fourth aspect.

(Function) In the first aspect of the present invention, a sliding plane coaxially and rotatably provided integrally with the pinion gear provided on the can lid holding means is provided parallel to the seaming means. The pinion gear is positioned at a position where it comes into contact with a rail extending upstream from the tip of the rack in the conveyance direction and meshes with the rack. In this state, the sliding plane slides along the rail, and when the pinion gear is brought into contact with the rack, the pinion gear and the rack mesh accurately.

Furthermore, in the second aspect of the present invention, the protrusion that is coaxially rotatably provided integrally with the pinion gear engages with the engagement portion that is provided upstream of the tip of the rack in the conveyance direction. The pinion gear is then rotated to a position where the teeth of the pinion gear mesh with the rack, and when the pinion gear is brought into contact with the rack, the pinion gear and the rack mesh accurately.

Further, in the third aspect of the present invention, the rack provided in the can lid holding means and with which the pinion gear engages is capable of elastically swinging in the horizontal direction at a portion where the rack begins to engage with the pinion gear. By doing so, when the pinion gear meshes with the rack,
If the meshing start positions do not match, the rack elastically swings while in contact with the pinion gear and escapes backwards, and when the teeth of the pinion gear reach the position where they mesh with the teeth of the rack, the rack The pinion gear and the rack are meshed together by restoring their swinging motion, and the pinion gear and the rack are meshed accurately.

Further, in the fourth aspect of the present invention, the roll part provided integrally with the can lid holding means abuts on a rail provided parallel to the seaming means that frictionally engages with the roll part. When they come into contact, they are engaged by friction and roll to smoothly rotate the can lid holding means.

(Example) Next, an example of implementation of the present invention will be explained in detail with reference to FIGS. 1 to 15.

FIG. 1 is a schematic diagram showing the entire canned food production apparatus including the present apparatus, FIGS. 2 and 3 are explanatory enlarged plan views of a part of the present apparatus, and FIG. 4 is the same as that shown in FIG. 2. 5 is a sectional view taken along the - line in FIG. 3, FIG. 6 is an explanatory rear view of FIG. 3, FIG. 7 is an explanatory plan view of FIG. 3, and FIG. 8 is an explanatory plan view of FIG. 3. FIGS. 9 and 10 are cross-sectional views taken along the - line in FIG. 8. FIGS. 11 and 12 are explanatory views of the operation.
3 to 15 are explanatory sectional views, FIG. 16 is an explanatory diagram of the operation of another embodiment, and FIG. 17 is an explanatory diagram of the operation of another embodiment.

This implementation device B double-seals a can lid Y to a can container X that is continuously supplied from a filling device A that fills can containers X with contents as shown in the first diagram.

Reference numeral 1 denotes a first can container conveying means that linearly and horizontally conveys the can container X filled with the contents supplied from the filling device A at a predetermined speed; a second can container conveyance means for conveying X;
3 is a can lid conveying means for conveying the can lid Y provided above the second can container conveying means 2;
5 is a can lid holding means for holding the can lid Y on the can lid transport means 3; and 5 is a first can lid holding means provided parallel to the transport direction of the outgoing path in which the second can container transport means 2 linearly transports the can container X. Sealing means 6 indicates a second seaming means provided parallel to the conveyance direction of the return path in which the second can and container conveying means 2 linearly conveys the can and container X.

More specifically, as shown in the first diagram, the first can/container conveying means 1 is provided so as to extend linearly from the discharge position of the filling device A and run parallel to the second can/container conveying means 2. The first can container conveying means 1
As shown in the figure and the third figure, it is equipped with a rotatable endless chain 7 and claw pieces 8 arranged at equal intervals on the endless chain 7 and holding the body of the can container X from the front and back in the conveyance direction. . The claw pieces 8 are provided so as to be slidable in the vertical direction, and can release the can container X from being held.

The endless chain 7 is slidably guided by a chain guide rail 9 as shown in the fourth figure. As will be described later, when tightening the can lid Y around the can container X, the claw piece 8 moves upward while touching the rail 10 and engages with the can container X, as shown by the solid line in FIG. Release.

The first can/container conveying means 1 includes the endless chain 7
A support plate 11 is provided to horizontally support the can container X along the extending direction of the can container X. The endless chain 7 is driven by a drive device (not shown), and the claw piece 8 fixed to the endless chain 7 supports the can container X. It is conveyed by sliding on the support plate 11 in a pinched state.
The support plate 11 is cut away at a portion 12 parallel to the first seaming means 5, and as will be described later, the cans X are supported and conveyed by the second can and container conveying means 2 in this region.

As shown in the fourth diagram, the can lid conveying means 3 carries a can lid Y.
A rotatable and vertically movable can lid holding means 4 is provided with a seaming chuck 13 for holding the can lid Y, and a rotation driving means 14 to be described later for rotationally driving the can lid Y is provided on the outer periphery of the can lid holding means 4.

The second can container conveying means 2, as shown in the fourth diagram,
A support table 15 is provided as a support section on which the can container X is placed and rotatably supported, and the support table 1
A rotary drive means 1 having the same configuration as the rotary drive means 14 provided in the can lid holding means 4 is provided on the outer periphery of the can lid holding means 5.
6.

The can lid conveying means 3 has a conveying block 1, which will be described later, on the upper part facing the second can container conveying means 2.
7, it is provided integrally with the second can/container conveying means 2.

The transport block 17 is connected to a large number of transport blocks 1 in an endless chain 18 that rotates endlessly in a substantially elliptical shape.
7 are connected to each other at intervals and are rotatably provided. The conveying block 17 is rotated at a position parallel to the first can and container conveying means 1 in the same direction and at the same speed. As shown in the figure, on the side parallel to the first can/container conveying means 1, the conveying block 17 approaches in an arc shape and moves in parallel with the conveying direction of the first can/container conveying means 1 as a tangential line. Furthermore, it is disposed so as to move away from the first can/container conveying means 1 in an arc shape, and runs parallel to the first can/container conveying means 1 at the cutout portion 12 of the support plate 11 described above.

1 and 2, 19 is a can lid supply turret that supplies can lids Y to the can lid conveying means 3, and 20 is a device that supplies can lids Y to the can lid supply turret 19.

The conveyance block 17 includes a support part 23 formed by integrally forming an upper horizontal part 21 and a lower horizontal part 22 into a U-shape when viewed from the side, as shown in the fourth figure, and the support part 23 is fixed to the endless chain 18. supported plate 23
a, and is detachably connected to bolts 23b and 23c.

Further, the upper horizontal portion 21 of the support portion 23 is provided with a can lid holding means 4. The can lid holding means 4 is rotatably provided at the lower end of a support shaft 24 hanging down from the upper horizontal portion 21 via bearings 25, 26, 27, and a cam roller 28 provided on the upper side of the support shaft 24 is provided. The can lid holding means 4 supported by the upper horizontal portion 21 is raised and lowered while being guided by a cam rail 29, which will be described later. The can lid holding means 4 is provided with a seaming chuck 13, and the seaming chuck 13 is provided with suction means for the can lid Y on its lower surface. The suction means transmits the suction force of a suction device (not shown) to the can lid holding means 4 via a suction duct 30, which will be described later, provided on the upper part of the can lid conveying means 3, and A ventilation socket 33, which communicates with an opening 31 in the center of the means 4 through a passage 32 inside the support shaft 24, is in sliding contact with the suction duct 30.

The ventilation socket 33 is fastened to a support rod 34 provided at the top of the support shaft 24 so as to be able to move up and down, and is pressed against the suction duct 30 by a spring 35 inserted in the support rod 34. .

A support table 15 for the can container X, which functions as the second can container conveying means 2 described above, is provided in the lower horizontal portion 22 of the support section 23 . The table 15 is rotatably provided via a bearing 37 on a support shaft 36 coaxial with the support shaft 24 of the can lid holding means 4 provided in the upper horizontal portion 21 .

The conveyance block 17 has guide rollers 38, 39, 40, and 41 provided substantially at the center of the back side of the support portion 23, facing each other vertically, and a rail plate 42, which will be described later.
A pair of guide rollers 43 and 44 with different heights of support shafts provided on the upper back side of the upper horizontal portion 21 are supported by a rail 45 having a guide groove, and a guide provided on the lower horizontal portion 22 roller 4
6 and is supported by a rail 47 having a guide groove.

Each of the conveying blocks 17 includes an endless chain 18 in which the lower back surfaces of the supporting parts 23 are connected to each other as shown in FIGS. 4 and 6, and the endless chain 18 is connected to the sprocket 48 shown in FIGS. 2 and 3. ，
It is driven by a drive device (not shown) at 49.

As shown in FIGS. 2 to 6, each conveyor block 17 is guided along a rail plate 42 connected to each other and formed in an endless shape, and also along endless rails 45 and 47. The rail plate 42 guides each transport block 17 on its outgoing path, as described above, in the first direction.
The can container conveying means 1 is brought close to each other in an arc shape so that the conveying direction thereof is tangential, and further parallel to the first can conveying means 1 which moves linearly at the cutout part 12 of the support plate 11, and then the first can conveying means 1 Container conveyance means 1
It is guided in an arc shape away from the center, further guided in a straight line on the return trip, and guided in an arc shape on the outbound trip.

Also, the rail 45 is connected to the rollers 43 and 44.
When the rollers 43 and 44 are on the linear trajectory 45a and the arcuate trajectory 45b, which coincide with the rotating trajectory of the endless chain 18, the rollers 43 and 44 are constrained and guided in the width direction on the same trajectory. As shown in FIGS. 8 and 9, the conveyor block 17 moves along an arcuate track 45.
In the portion _l1 where the guide groove moves from b to the linear track 45a, the guide groove of the rail 45 has a linear track 45c in the upper half on the groove bottom side, and a linear track 45c in the lower half on the groove opening side. Orbit 45d that expands further outward
is formed. When the rollers 43 and 44 pass here, as shown in FIGS. 8 and 9, the preceding roller 43 passes along the lower half track 45d,
The roller 44 that follows the roller 43 follows the track 4 in the upper half, as shown by the imaginary line in FIG. 8 and in FIG. 10.
Move 5c.

Further, as shown in FIGS. 8 and 10, the conveying block 17 moves from a linear track 45a to an arcuate track 45b that coincides with the rotating track of the endless chain 18.
In the portion l ₂ where the rail 45 moves to , the guide groove of the rail 45 is formed with a track 45e that bulges outward from the arc-shaped track 45b. When the rollers 43 and 44 pass here, as shown in the hypothetical diagram in FIG. It passes through a trajectory 45e that expands.

As a result, each transport block 17 can move smoothly while being restrained by the rails 45 in the portion where it moves from the linear track 45a to the arcuate track 45b and from the arcuate track 45b to the linear track 45a.

The cam rail 29 is a position where the cam roller 28 of the conveying block 17 moves as shown in FIGS.
They are provided integrally and parallel to each other on the seaming means 6. The cam rail 29 guides the cam roller 28 in the transport direction of the transport block 17, and also guides the seaming chuck 13 to move up and down via a support shaft 24 on which the cam roller 28 is provided. As shown in FIGS. 2 and 3, the cam rail 29 is supported by a beam member 50 that spans both cam rails 29, and is raised and lowered together by a handle via a threaded rod 51 that is threaded onto the beam member 50. .

The suction duct 30 is provided above the ventilation socket 33 of each transport block 17 along the movement position as shown in the second figure, and a number of suction ducts are provided at intervals on the lower surface thereof as shown in the tenth figure. Circular hole 52
is provided so as to be connectable to each ventilation socket 33.

As shown in the second figure, the first seaming means 5 is provided in a straight line corresponding to the position where the transport block 17 runs parallel to the cutout portion 12 of the support plate 11 along the rail plate 42. . The first seaming means 5 attaches a can lid Y to a flange portion of the can container X on the outward path side where the can container X is linearly conveyed by the second can container conveying means 2, as shown in FIGS. A first seaming group 53 and a second seaming group 54 are connected in a straight line and are connected to each other in a straight line.

As shown in FIG. 5, the second seaming means 6 includes a third tightening group 55 linearly provided on the return path side where the cans X are linearly conveyed by the second can and container conveying means 2. .

Seaming chuck 13 of the can lid holding means 4
and the support table 15 of the second can container conveying means 2, as shown in the fourth figure, when the can container X and the can lid Y are sandwiched between them, they are rotated and their flange portions and Rotary drive means 14 and 16 are provided for rolling the end hook portion while being in pressure contact with the first seaming means 5 and the second seaming means 6.

As shown in FIG. 4, the rotation drive means 14 includes a pinion gear 56 provided around the entire upper part of the outer circumference of the seaming chuck 13, and a first winding means 5 and a second winding means 56 so as to be able to mesh with the pinion gear 56. A linear first rack 57 is provided along the fastening means 6.

The rotation drive means 16 includes a second pinion gear 58 provided coaxially with the support shaft 36 of the support table 15.
and a linear second rack 59 provided along the first seaming means 5 and the second seaming means 6 so as to be able to mesh with the second pinion gear 58.

Therefore, as shown in FIGS. 4 and 5, when each of the conveying blocks 17 moves along the first seaming means 5 and the second seaming means 6, the first pinion gear 56 and the second pinion gear 58 rotate while meshing with the first rack 57 and the second rack 59, respectively, and the seaming chuck 13 and the support table 15 are rotationally driven. When the seaming chuck 13 and the support table 15 rotate, the can lid Y and the can container X held therebetween are rotated.

The rotational drive means 14 has a structure shown in FIGS.
2, a plurality of first protrusions 60 are provided at equal intervals in the circumferential direction on a cylindrical portion that rotates coaxially with the first pinion gear 56;
A first sliding plane 61 consisting of a plurality of horizontal surfaces that rotates together with the first protrusion 60 is provided on the upper part of the protrusion 60 .

The first sliding plane 61 passes through the first sliding plane 61.
A first rail 63 extending upstream from the tip of the rack 57 in the conveying direction is provided horizontally. The first sliding plane 61 is in contact with the first rail 63 and the first sliding plane 61 is in contact with the first rail 63.
The sliding plane 61 rotates to a position along the first rail 63. By this rotation of the first sliding plane 61, the first pinion gear 56 is positioned at a position where it can smoothly engage with the first rack 57 that will subsequently engage.

The first protrusions 60 are provided below the central position of each first sliding plane 61, and each first protrusion 60 is formed integrally with the teeth of the first pinion gear 56.

A first engaging member 62 that engages with the first protrusion 60 is provided at a passing position of the first protrusion 60 and between the first rack 57 and the first rail 63 .

As described above, after the first pinion gear 56 is rotated with the first sliding plane 61 in contact with the first rail 63 and positioned so that it can mesh with the first rack 57, the first protrusion 60 engages with the first engagement member 62, as the first protrusion 60 moves in the conveying direction, the engagement between the first engagement member 62 and the first protrusion 60 causes the first The pinion gear 56 is rotated and begins to mesh while rolling on the first rack 57.

Such a configuration is shown in FIGS. 4, 5, and 11.
As shown in the figure, the rotation drive means 16 also has the same configuration, and a plurality of rotary drive means 16 are provided at equal intervals in the circumferential direction on a cylindrical portion that rotates coaxially with the second pinion gear 58. The second protrusion 6 of
4, and the second protrusion 6 on the upper part of each second protrusion 64.
A second sliding plane 65 consisting of a plurality of horizontal planes that rotates together with the second sliding plane 65 is provided, and correspondingly,
A second rack 59, a second engagement member 66, and a second rail 67 are provided.

Further, the first pinion gear 56, the second pinion gear 58, the first rack 57, and the second rack 5
The first rail 63 guides the meshing of the first rail 63 and the first rail 63.
and the first engaging member 62, the second rail 67, and the second
As shown in FIGS. 3 and 5, a structure similar to the engaging member 66 is provided on the upstream side in the conveying direction from the tip of the second rack 59 provided in the second seaming means 6, and 68 is the third surface in contact with the first sliding plane 61.
A rail, 69 is a third engagement member with which the first protrusion 60 engages, and 70 is a fourth engagement member with which the second sliding plane 65 abuts.
The rail 71 is a fourth engagement member with which the second protrusion 64 engages.

The operation of the present embodiment device B having the above configuration will be explained next.

After the can container X is filled with the contents in the filling device A, it is held by the claws 8 of the first can container conveying means 1 from the front and rear sides in the conveying direction and is moved straight on the support plate 11, as shown in the first diagram. It is slid and conveyed in a shape.

On the other hand, the can lids Y are supplied from the can lid supply device 20, and are supplied to the can lid transport means 3 of each transport block 17 by the can lid supply turret 19. At the delivery position of the supplied can lid Y, the opening 31 of the can lid holding means 4 is connected to the suction duct 30 via the passage 32 and the suction socket 33, as shown in the fourth figure, so that the suction of the opening 31 is As a result, the can lid Y is held by suction on the can lid holding means 4.

The conveyance block 17 holding the can lid Y on the can lid holding means 4 is then rotated by an endless chain 18 that rotates in a substantially elliptical shape, and is rotated along a linear track 45a.
From there, it enters the arcuate trajectory 45b. At this time, as shown in FIG. 8, the guide roller 43 moves along the guide groove of the rail 45 on the inner linear track 45f at the entrance of the arcuate track 45b. Subsequently, the guide roller 44 follows the guide roller 43 and enters a track 45e that bulges outward from the linear track 45a of the rail 45. After that, the guide roller 4 of the transport block 17
3 and rollers 44 rotate along an arcuate track 45b, and eventually enter a linear track 45a in which the transport direction of the second can/container transport means 2 is the outward path. At the entrance of the linear track 45a, the rail 45 has a track 45d bulging outward in its lower half and an endless chain 1 outside its upper half, as shown in FIGS.
Since the same linear track 45c as the track 8 is formed, first, the guide roller 43 bulges outward and moves along the track 45d of the lower half of the rail 45. Then, at the same time as the outer guide roller 43 moves linearly, the guide roller 44 moves linearly along the track 45c of the upper half of the rail 45. Thereby, the conveyor block 17 is moved along the linear track 45a.
When moving from the arcuate track 45b to the linear track 45b, or when the transport block 17 moves from the arcuate track 45b to the linear track 45a, it rotates while being restrained by the rails 45.

In addition, as shown in FIGS. 2, 4, and 6,
The conveyance block 17 has a rail plate 42 and a rail 4.
5, 47, respectively, each guide roller 38, 3
9, 40, 41, 43, and 44, the endless chain 18 gradually approaches the first can/container conveying means 1 and moves it to a position parallel thereto. At this time, the cans X transported by the first can and container transport means 1 are held by the pair of claws 8 from the front and back in the transport direction, and are brought to the second can and container transport means at the position of the cutout portion 12 of the support plate 11. It is transferred to the support table 15 of No. 2. Then, the can container X is placed on the support table 15 while being retained by the claw pieces 8. The can container X is held in the first position by the claw pieces 8.
Even if there is a speed difference between the can and container conveying means 1 and the second can and container conveying means 2, the cans and containers are accurately placed at the center of the support table 15. When the cans and containers X are reliably delivered to the second can and container conveying means 2, the claws 9 abut against the rails 10 and move upward, as shown in the fourth diagram, thereby releasing the locking of the cans and containers X. .

When the can container X is thus transferred to the second can container conveying means 2, on the other hand, the can lid holding means 4 of the can lid conveying means 3 has a first sliding plane 61 as shown in FIGS. 11 and 12. The first sliding plane 61 comes into contact with the first rail 63 and rotates to a position along the first rail 63, so that the first pinion gear 56 and the first rack 57 are positioned so that they can mesh with each other. Thereafter, the first protrusion 60 engages with the engagement member 62, and the first protrusion 60 rotates so that the engagement between the two is released, thereby causing the first pinion gear 56 to rotate. while engaging the first rack 57, and the first pinion gear 5
6 meshes smoothly with the first rack 57. At this time, the second sliding plane 65 of the support table 15 supporting the can container X is brought into contact with the second rail 67 to position the second pinion gear 58 and the second rack 59 so that they can mesh with each other. Furthermore, the second protrusion 64
engages with the second engaging member 66, and the second protruding portion 64 rotates so as to release the engagement between the two, and the second rack 59 rotates while rotating the second pinion gear 58.
The second pinion gear 58 meshes with the second rack 59 smoothly.

In this process, the can lid holding means 4 of the can lid conveying means 3 is moved to the cam rail 2 via the cam roller 28.
It is lowered by 9. At this time, the first pinion gear 56 and the first rack 57 are lowered while being engaged with each other. The can lid Y held by the can lid holding means 4 is placed over the can container X on the support table 15.

Furthermore, when the transport block 17 transports the can lid Y and the can container X and rotates, the seaming chuck 13 of the can lid holding means 4 and the support table 15 of the second can container transport means 2 are synchronized with the transport speed. Rotate the can lid Y
and rotate the can container Y. Then, on the outward path of the second can/container conveying means 2, the can lid Y and the can container X are conveyed in a straight line while being rotated, and at the same time, as shown in FIG.
is rolled while being pressed against the seaming groove 53 of the winding groove 53, thereby being seamed. Next, the first seaming means 5
The portions that have been seamed by the first seaming grooves 54 connected to each other are similarly pressed and seamed as shown in FIG. 14.

Thereafter, when the transport block 17 leaves the transport direction of the first can/container transport means 1, the cans X whose can lids Y have already been tightened are transported by the second can/container transport means 2 of the transport block 17. be done. Then, while being held between the can lid holding means 4 and the support table 15, the can container X and the can lid Y are linearly conveyed by the conveying block 17 and simultaneously rotated in the same manner as described above. The third part of the seaming means 6
Rolling while being pressed against the seaming groove 55, the first
5, the can container X and the can lid Y are double-sealed. After that, the can container X whose can lid Y has been completely tightened is carried out from the carry-out path 73 by the carry-out turret 72.

Next, another embodiment of the rotation driving means will be described.

FIG. 16 shows a rotary drive means 74 of another embodiment,
FIG. 75 is an explanatory diagram showing the operating state of 75. The rotation driving means 74 includes a first pinion gear 76 provided around the entire upper part of the outer circumference of the seaming chuck 13 and a first seaming means 5 that can mesh with the first pinion gear 76.
and a linear first rack 77 provided along the second seaming means 6. The first rack 77
is provided with a swinging portion 77a made of an elastic material such as a soft synthetic resin that swings elastically in the horizontal direction at a portion where the first pinion gear 76 begins to mesh. The upstream end of the swinging portion 77a in the conveyance direction is a free end.

Similarly, the support table 15 also has a second pinion gear 78 provided around the entire lower part of the outer periphery of the support table 15, and a first winding means 5 and a second winding means 5, which are meshed with the second pinion gear 78. A rotary drive means 75 is provided, which comprises a linear second rack 79 provided along the fastening means 6. The second rack 79
Similar to the first rack 77, a swinging portion 79a made of an elastic material such as a soft synthetic resin that swings elastically in the horizontal direction is provided at a portion where the first pinion gear 78 starts to mesh. The upstream end of the swinging portion 79a in the conveying direction is a free end.

As shown in FIG.
By providing a, each pinion gear 76, 7
8 starts to engage with the respective racks 77 and 79, if the engagement start positions do not match, the swinging portions 7
7a and 79a elastically swing in the horizontal direction and escape backwards, and the teeth of pinion gears 76 and 78 easily
When the swinging portions 77a and 79a come to the position where they mesh with the teeth 7 and 79, the swinging portions 77a and 79a are restored and mesh with the pinion gears 76 and 78, respectively.

Further, as another embodiment of the rotational drive means,
As shown in FIG. 17, rotation drive means 80 and 81 that are rotationally driven by friction may be provided on the can lid holding means 4 and the second can container conveying means 2. The rotation driving means 80 is connected to the seaming chuck 13.
A first roll part 82 having a high friction coefficient is coaxially rotatable integrally with the first roll part 82, and a friction member provided along the first seaming means 5 and the second seaming means 6 that frictionally engage with the first roll part 82. The first rail 83 has a high coefficient. The first roll portion 82 having a high coefficient of friction and the first rail 83 having a high coefficient of friction are both provided with polyurethane resin at their engagement positions, and are engaged by the friction of the resin. The frictional engagement between the two is made such that the pressure gradually becomes stronger from the upstream side. Further, the support table 15 is also
A second roll part 84 having a high friction coefficient is provided coaxially and rotatably integrally with the second roll part 84, and a second roll part 84 is provided along the first winding means 5 and the second winding means 6 which frictionally engage with the second roll part 84. A rotary drive means 81 consisting of a second rail 85 having a high coefficient of friction is provided with a configuration similar to that of the rotary drive means 80 described above.

As shown in FIG.
The rails 83 and 85 are in frictional engagement with the rails 83 and 84, and the rails 83 and 85 are engaged by friction and roll. Therefore, by eliminating rolling due to the meshing of teeth between a pinion gear and a rack, it is possible to eliminate timing deviations and misalignment caused by such meshing.

(Effects of the Invention) As is clear from the above, according to the present invention, the sliding plane coaxially and rotatably provided integrally with the pinion gear provided on the can lid holding means is engaged with the pinion gear. The pinion gear is positioned at a position where it meshes with the rack by coming into contact with a rail extending upstream from the tip of the rack in the conveying direction, thereby enabling reliable meshing with the rack. Therefore, it is possible to provide a can lid seaming device that can increase the transport speed of can lids and can containers when seaming can lids.

Further, the pinion gear is connected to the rack by the protruding portion rotatably provided coaxially with the pinion gear engaging with the engaging portion provided upstream of the tip of the rack in the conveying direction. The winding of the can lid can speed up the transport speed of the can lid and can container when the can lid is tightened, since the rack is rotated at the meshing position and then meshes with the rack, and the meshing of the two starts. A tightening device can be provided.

Furthermore, the rack, which is integrally provided with the can lid holding means and which the pinion gear meshes with, swings elastically in the horizontal direction at the point where it starts to mesh with the pinion gear, so that when the pinion gear meshes with the rack, When the meshing start position does not match, the rack is
While in contact with the pinion gear, it swings elastically and escapes backwards, and when the teeth of the pinion gear reach a position where they mesh with the teeth of the rack, the rack returns to swing and meshes with the pinion gear. Therefore, it is possible to provide a can lid seaming device in which the pinion gear and the rack are smoothly engaged, and the can lid and can container can be transported at a high speed when the can lid is seamed.

Further, the roll part provided integrally with the can lid holding means and the rail that frictionally engages with the roll part come into contact with each other and are engaged by friction to drive rotation, so that the roll part is rotated. , no matter which part of its outer periphery comes into contact with the rail, it engages with the rail and provides smooth rotational drive to the can lid holding means, so that the conveyance speed of the can lid and can container when the can lid is tightened is reduced. It is possible to provide a can lid seaming device that can speed up the process.

[Brief explanation of the drawing]

1 to 15 show an example of the implementation of the present invention, FIG. 1 is a schematic diagram showing the entire can manufacturing apparatus including the apparatus of the present invention, and FIGS. 2 and 3 are examples of the present invention. An explanatory enlarged plan view of a part of the device, FIG. 4 is a sectional view taken along the line - - in FIG. 2, and FIG. 5 is a - line sectional view in FIG. 3.
6 is an explanatory rear view of FIG. 3, FIG. 7 is an explanatory plan view of FIG. 3, FIG. 8 is an explanatory sectional view of FIG. 3, and FIGS. 9 and 10. 8 is a cross-sectional view taken along the - line in FIG. 8, FIGS. 11 and 12 are explanatory diagrams of operation, FIGS.
6 is an explanatory diagram of the operation of another embodiment, FIG. 17 is an explanatory diagram of the operation of another embodiment, FIG. 18 is a schematic diagram showing the entire conventional can manufacturing apparatus, and FIG. 19 is the same as that of FIG. 18. A partially explanatory enlarged plan view, FIG. 20, is a sectional view taken along the line XX-XX of FIG. 19. X... Can container, Y... Can lid, 2... Can container conveying means, 3... Can lid conveying means, 4... Can lid holding means, 14, 16, 74, 75, 80, 81... Rotation Drive means, 5... First seaming means, 6... Second seaming means, 56, 76... First pinion gear, 5
7,77...First rack, 63,83...First rail, 61...First sliding plane, 58,78...Second pinion gear, 59,79...Second rack, 6
7, 85...second rail, 65...second sliding plane, 60...first protrusion, 62...first engagement part,
64...Second protruding part, 66...Second engaging part, 77
a, 79a... Swinging part, 78... First roll part,
78...Second roll section.

Claims (1)

[Scope of Claims] 1. A can container is delivered to a can container transport means rotating on an endless track having a linear track portion, and the can container is rotatably supported and transported by the can container transport means, and the can container is The can lid is held by detachably holding the can lid by a can lid holding means rotatably and movably provided on the can lid transporting means which faces above the container transporting means and moves in synchronization with the can container transporting means. the can lid holding means is lowered to cover and hold the can lid held by the can lid holding means over the can container, and both are rotated together by the rotation driving means on the linear track portion. In the can lid seaming device, the can lid tightening device rolls the can lid onto the can container by pressing the can lid against the seaming means while rolling the can lid along the linear seaming means. and a rack provided parallel to the seaming means with which the pinion gear engages, extending upstream in the conveying direction from the tip of the rack. and a coaxially rotatable sliding plane coaxial with the pinion gear, which positions the pinion gear at a position where the pinion gear meshes with the rack when sliding in contact with the rail. A can lid seaming device featuring: 2. A second pinion gear coaxially and rotatably provided integrally with a can container support section rotatably provided on the can container conveying means, and parallel to the seaming means with which the second pinion gear meshes. A second rack is provided, a second rail is provided extending upstream from the tip of the second rack in the conveying direction, and when the second rack slides in contact with the second rail, the second pinion gear is
Sealing the can lid according to claim 1, further comprising a coaxial and rotatable sliding plane integrally attached to the second pinion gear for positioning the second pinion gear at a position where the second pinion gear engages with the rack. Device. 3. The can container is delivered to the can container transport means which rotates on an endless track having a linear track portion, the can container is rotatably supported and transported by the can container transport means, and the can container is transported above the can container transport means. The can lid is conveyed by detachably holding the can lid by a can lid holding means which is rotatably and movably provided on a can lid conveying means that faces and moves in synchronization with the can container conveying means. The holding means is lowered and the can lid held by the can lid holding means is held so as to cover the can container, and both are rotated together by the rotary drive means on the linear track portion to form a straight line. In the can lid tightening device for tightening a can lid onto a can container by rolling along the tightening means and pressing against the tightening means, the rotation driving means is integrally coaxial with the can lid holding means. It consists of a rotatably provided pinion gear, a rack provided parallel to the seaming means with which the pinion gear engages, a protrusion provided rotatably integrally with the pinion gear, and A can lid seaming device characterized in that an engaging portion provided upstream of the tip of the rack in the conveying direction rotates the pinion gear to a position where it meshes with the rack when engaged. . 4. A second pinion gear that is coaxially and rotatably provided integrally with a can container support section that is rotatably provided on the can container conveying means, and parallel to the seaming means that the second pinion gear meshes with. When the provided second rack engages with the second protrusion that is rotatably provided integrally with the second pinion gear, the second pinion gear is engaged with the second rack. 4. The can lid seaming device according to claim 3, further comprising a second engaging portion provided upstream in the conveying direction from the tip of the second rack for rotating the can lid to a position where the can lid is tightened. 5. The can container is delivered to the can container conveying means which rotates on an endless track having a linear orbit portion, and the can container is rotatably supported and conveyed by the can container conveying means, and the can container is conveyed above the can container conveying means. The can lid is conveyed by detachably holding the can lid by a can lid holding means which is rotatably and movably provided on a can lid conveying means that faces and moves in synchronization with the can container conveying means. The holding means is lowered and the can lid held by the can lid holding means is held so as to cover the can container, and both are rotated together by the rotation drive means at the linear portion to tighten the can lid in a straight line. In the tube lid tightening device for tightening a can lid onto a can container by rolling the can lid along the tightening means while rolling the can lid onto the can container, the rotary drive means is coaxially rotatable integrally with the tube lid holding means. A can comprising a pinion gear provided in the can, and a rack provided in parallel with the seaming means and in which a portion where the pinion gear begins to engage can swing elastically in the horizontal direction. Lid tightening device. 6. A second pinion gear coaxially and rotatably provided integrally with the support portion of the can container, which is rotatably provided on the can container conveying means; and a second pinion gear provided in parallel with the seaming means. Claim 5 characterized in that a second rack is attached, the part where the first rack starts to engage being able to swing elastically in the horizontal direction.
The described can lid seaming device. 7. The can container is delivered to the can container transporting means which rotates on an endless track having a linear track portion, the can container is rotatably supported and transported by the can container transporting means, and the can container is transported above the can container transporting means. The can lid is conveyed by detachably holding the can lid by a can lid holding means which is rotatably and movably provided on a can lid conveying means that faces and moves in synchronization with the can container conveying means. The holding means is lowered and the can lid held by the can lid holding means is held so as to cover the can container, and both are rotated together by the rotary drive means on the linear track portion to form a linear winding. In a can lid seaming device that rolls a can lid onto a can container by rolling it along a tightening means and rolling the can lid onto a can container, the rotation driving means rotates coaxially with the can lid holding means. 1. A can lid seaming device comprising a roll part with a high friction coefficient freely provided and a rail with a high friction coefficient provided parallel to the seaming means frictionally engaged with the roll part. 8. A second roll portion having a high friction coefficient and coaxially rotatably provided integrally with the can/container conveying means;
8. The can lid seaming device according to claim 7, further comprising a second rail having a high friction coefficient and provided in parallel with the seaming means that frictionally engages with the roll portion.