JPH059179B2 - - 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 the can lid is tightened while the can container is being transported 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, the can container is pressed against seaming means such as an arcuate seaming rail provided along the outer periphery of the turret. 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 in the cans, causing the contents to tends to overflow. Therefore, the faster the transport speed of the can container is, the less it becomes possible to prevent the contents from overflowing, and the tightening speed of the can lid that can prevent the contents from overflowing is approximately
The limit was 200 to 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 16, 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. 17 and 18, 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 that 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 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 transferred to the can lid transport means 108 while being transported by the second can container transport means 104. 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 supplying 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, when the heights of the can containers X whose can lids Y are seamed are different, the can lid holding means 107
It is necessary to change the spacing between the supporting table 105 and the supporting table 105. At the same time, if the height of the can container Y changes, the seaming position of the can lid Y also changes, so the height position of the seaming means and the can lid holding means 1 are adjusted accordingly.
It is necessary to change the lifting position of 07.

Therefore, it has been desired to be able to easily make these changes in the seaming device.

(Problems to be Solved by the Invention) An object of the present invention is to provide a seaming device that can eliminate such inconveniences and can quickly respond to changes in the height of can containers.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a device for sealing a can lid to a cylindrical can container, which has an upper part that can be raised and lowered and can be rotated horizontally. A plurality of conveying blocks integrally equipped with a pivotably supported can lid holding means and a can container supporting means that faces the can lid holding means and is rotatably supported in the horizontal direction are connected in an endless manner in a straight line. provided rotatably along an endless track having a track portion, and providing a driving means for rotating the connected body of the conveying block along the track;
The can lid holding means is provided with a cam follower for raising and lowering the means, and a cam rail that engages with the cam follower and guides the cam follower up and down is provided along the track, and the linear track portion is connected to the can lid. A can lid seaming device including a linear seaming means provided outside the track for seaming the end hook portion of the can lid held between the holding means and the can container supporting means and the flange portion of the can container, The conveyance block is detachably attached to an endless chain, the cam rail is provided integrally with the seaming means so as to be freely raised and lowered, and an elevating means is provided for raising and lowering the cam rail and the seaming means.

(Function) With the above means, the can lid conveying means and the second can/container conveying means can be replaced by removing the conveying block that supports the can lid holding means and the support table from the endless chain. By providing a transport block supported by the can lid holding means and the support table in accordance with the heights of various can containers, it is possible to wrap can lids around can containers of different heights.

Further, the cam rail that guides the cam follower that guides the can lid holding means up and down is raised and lowered together with the seaming means by the lifting means, thereby adjusting the seaming position of the can lid.

(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 cross-sectional views.

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 the can container 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 to be swingable 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 an outer horizontal part 22 into a U-shape in side view, as shown in the fourth figure, and the support part 23 is connected to the endless chain 18. Fixed support 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 an upper horizontal portion 21 via bearings 25, 26, 27, and a cam follower 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. 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 attached to a support rod 34 provided at the top of the support shaft 24 so as to be movable up and down, and is urged into pressure contact with 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 FIG. 8, the preceding roller 4
3 moves along a track 45f that is an extension of the linear track 45a, and the roller 44 that follows the roller 43 passes along a track 45e that bulges to the outer periphery.

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 connected to the cam follower 2 of the conveyance block 17 as shown in FIGS.
8 is moved, and is integrally provided on the first seaming means 5 and the second seaming means 6 in parallel with each other. The cam rail 29 is connected to the cam follower 2
8 in the conveying direction of the conveying block 17, and a support shaft 24 on which the cam follower 28 is provided.
The lifting and lowering of the seaming chuck 13 is guided through the seaming chuck 13. As shown in FIGS. 2 and 3, the cam rail 29 has a beam member 5 extending across both cam rails 29.
0, and is raised and lowered together by a handle via a screw rod 51 screwed into 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 groove 53 and a second seaming groove 54 for seaming the end hook portion of the seam are connected in a straight line.

As shown in FIG. 5, the second seaming means 6 is provided with a third seaming groove 55 linearly on the return path side where the can container X is linearly conveyed by the second can 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, the flange portions of both are rotated. 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 periphery of the seaming chuck 13, and a first seaming means 5 and a second seaming means so as to be able to mesh with the pinion gear 56. 6 and a linear first rack 57 provided along the line 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 engagement member 62 is provided at the first protrusion 60 at a passing position between the first rack 57 and the first rail 63 and engages with the first protrusion 60 .

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.
The same structure as the first engaging member 62, the second rail 67, and the second engaging member 66 is used for the second rack 59 provided on the second seaming means 6, as shown in FIGS. 3 and 5. It is provided on the upstream side in the conveying direction from the tip, and 68 is the third rail that the first sliding plane 61 comes into contact with, 69 is the third engagement member that the first protrusion 60 engages with, and 70 is the second sliding surface. The fourth rail 71 that the dynamic plane 65 abuts is a fourth engagement member that the second protrusion 64 engages with.

The operation of the present embodiment apparatus B having the above-mentioned configuration will be explained next.

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

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 transport block 17 holding the can lid Y on the can lid holding means 4 is then rotated by the wireless chain 18 which rotates in a substantially elliptical shape, and is rotated along the linear trajectory 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 45 that bulges outward from the linear track 45a of the rail 45. After that, the guide roller 43 of the transport block 17
The roller 44 rotates along an arcuate track 45b, and eventually enters 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 that bulges outward in its lower half, and an endless chain 18 on the outside of its upper half, as shown in FIGS.
Since the guide roller 43 forms the same linear track 45c as the track of the rail 45, first, the guide roller 43 expands and moves along the track 45d of the lower half of the rail 45. Then, at the same time as the guide roller 43 moves linearly, the guide roller 44 moves linearly along the track 45c of the upper half of the rail 45. Thereby, when the transport block 17 moves from the linear track 45a to the circular arc track 45b, or when the transport block 17 moves from the circular track 45b to the linear track 45
When moving to position a, it rotates while being restrained by the rail 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 wireless 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 stopped 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 container transport means 1 and the second can container transport means 2, the can containers are accurately placed at the center of the support table 15. When the cans and containers X are reliably transferred to the second can and container transport means 2, the claws 9 come into contact with the rails 10 and move upward to release the cans and containers X, as shown in the fourth diagram. .

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 where it slides along the first rail 63, and 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. However, the first pinion gear 56 meshes with the first rack 57 smoothly. At this time, the second plane 65 of the support table 15 that supported 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, and further, The second protrusion 64 engages with the second engagement member 66 and rotates so that the engagement between the two is released. 59, and the second pinion gear 58 engages with the second rack 59.
meshes smoothly.

In this process, the can lid holding means 4 of the can lid conveying means 3 is lowered by the cam rail 29 via the cam follower 28. 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 X. 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.

In the above implementation device, when the height of the can container X to which the can lid Y is tightened is changed depending on the type of can, the conveying block 17 is removed from the endless chain 18 and the can lid is held in accordance with the height of the can container X. This is done by replacing the transport block with another one in which the distance between the means 4 and the support table 15 is changed. At the same time, the cam rail 29 that guides the cam follower 28 that guides the can lid holding means up and down, and the seaming means 5 and 6 are aligned with the seaming position of the can container, and the screw rod 51 is rotated by the handle to move the beam rod 50 up and down.

(Effects of the Invention) As is clear from the above description, the present invention provides an endless chain that rotates the conveyance block by supporting the can lid holding means and the support table of the second can container conveyance means on the conveyance block. Since the can lid conveying means and the second can container conveying means are configured by attaching and detaching the conveying block to the can lid and the second can container conveying means, by configuring the conveying block to match the height of various can containers, it is possible to simply replace the conveying block. It is possible to wrap can lids on various can containers.

Further, since the cam rail and the seaming means that guide the cam follower that guides the can lid holding means up and down are configured to be able to move up and down, the cam rail and the seaming means can be adjusted to suit the height of various can containers. The height position can be easily changed.

Therefore, it is possible to provide an apparatus that can quickly adapt to changes in the height of the can container and efficiently tighten the can lid.

[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 canned food production apparatus including the apparatus of the present invention, and FIGS. 2 and 3 are the apparatus of the present invention. FIG. 4 is a cross-sectional view taken along the - line in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line - in FIG.
Line sectional view, Figure 6 is an explanatory rear view of Figure 3, Figure 7 is an explanatory rear view of Figure 3;
The figure is an explanatory plan view of FIG. 3, FIG. 8 is an explanatory sectional view of FIG. 3, and FIGS. 9 and 10 are - of FIG. 8.
Line sectional views, Figures 11 and 12 are operation explanatory views, Figures 13 to 15 are explanatory sectional views,
FIG. 6 is a schematic diagram showing the entire can manufacturing apparatus including a conventional device, FIG. 17 is a partially enlarged plan view of FIG. 16, and FIG. 18 is a sectional view taken along the line -- in FIG. 17. X... Can container, Y... Can lid, 1... First can container transport means, 2... Second can container transport means, 3... Can lid transport means, 4... Can lid holding means, 5, 6... Sealing means, 14, 16... Rotation drive means, 17... Transport block, 28... Cam follower, 29...
Cam rail, 50, 51...Elevating means.

Claims (1)

[Claims] 1 A device for tightening a can lid onto a cylindrical can container, which includes a can lid holding means that can be raised and lowered at the upper part and is rotatably supported in a horizontal direction, and a can lid holding means that faces the can lid holding means and is horizontally supported at the lower part. A plurality of transport blocks each including a can container support means rotatably supported in a direction are connected in an endless manner and are rotatably provided along an endless track having a linear track portion, and the transport block is Driving means for rotating the connecting body along the track is provided, a cam follower for raising and lowering the means is provided on the can lid holding means, and a cam rail is provided on the track for engaging with the cam follower and guiding the cam follower up and down. a linear tightening means provided along the linear track portion and tightening the end hook portion of the can lid and the flange portion of the can container, which are held between the can lid holding means and the can container supporting means, in a manner corresponding to the linear track portion; In the can lid seaming device provided outside the track, the conveying block is detachably attached to an endless chain, the cam rail is provided so as to be movable up and down integrally with the seaming means, and the cam rail and the seaming means are connected together. A can lid seaming device characterized by being provided with a lifting means for lifting and lowering the can lid.