JP5988497B2 - Can Cima - Google Patents

Description

  The present invention relates to a rotary can seamer that seams a can lid to a can mouth by a seaming mechanism that is placed in a circumferentially equal manner by covering the mouth portion of the can lid.

Conventionally, in a rotary can seamer that covers a can lid filled with a beverage or the like and seams the can lid to the can mouth by a seaming mechanism arranged on the circumference equally, the outer periphery of the can seamer By rotating a star wheel having pockets on the circumference equally, the can body is engaged with the pockets to carry the can, and when handling cans with different can body diameters, it is the target. The star wheel had a pocket corresponding to the can body diameter. Since much time has been spent on the replacement of the star wheel, a device has been devised to facilitate the replacement (see, for example, Patent Document 1).
The pocket portion is disposed in the vicinity of the star wheel, and has a circumferentially equal pocket portion corresponding to the seaming mechanism, and the pocket portion is formed when the can mouth to be seamed has no can lid. Also in the bell split that prevents abnormal behavior of the can by holding down, when replacing the worn parts of the seaming mechanism, the bell split is attached and removed in the same manner as the replacement of the star wheel, and accordingly the seaming mechanism Installation and removal have also been performed, and a great deal of time has been spent replacing the worn parts of the seaming mechanism.
In recent years, in can seams, from the viewpoint of productivity improvement, there has been a tendency to increase speed and production operation, and the frequency of replacement due to wear of the seaming mechanism has increased. There is a demand for a device that makes it easy to replace worn parts of the seaming mechanism by efficiently attaching and detaching the bell split and the seaming mechanism at the time of replacement.

Japanese Utility Model Laid-Open No. 1-103624 (FIG. 1)

An example of a conventional can seamer will be described with reference to FIGS.
FIG. 1 is a plan view of a can seamer and its front and rear devices.
FIG. 2 is a partial front view of the can seamer, which is a partial cross-sectional view.
FIG. 3 is an enlarged view of a portion III in FIG. 2 and is a cross-sectional view.
FIG. 4 is a partially enlarged view corresponding to FIG. 3 and is a view for explaining the operation.
FIG. 5 is a partially enlarged view corresponding to FIG. 3 and FIG. 4 and is a diagram for explaining the function of the bell split.
FIG. 6 is a plan view of the bell split as seen from the VI view of FIG.
7 is a cross-sectional view taken along the line VII-VII in FIG.

  In FIG. 1, a can C filled with a liquid by a filling device (not shown) has a conventional can seamer 11 (FIG. 1 is a diagram of an embodiment of the present invention) at a predetermined conveying pitch by a supply conveyor 32 from the direction of an arrow 32F. The sign 11 of the conventional can seamer is diverted and is supplied to (), and is transferred to a can base (to be described later) of the seaming turret 7 shown by a one-dot chain line through a can transfer means (not shown). The can lid L supplied from the direction of the arrow 31F is taken in by the can lid supply device 31, and is transported in the direction of the arrow 8r by the gas turret 8 illustrated by the alternate long and short dash line in the direction of the arrow 8r. After being put on the mouth, the can lid L is seamed to the can mouth by a seaming roll (to be described later) while being transported in the direction of the arrow 7p on the transport track 7a of the seaming turret 7. The can CL seamed with the can lid L is transported on the transport track 9b in the direction of the arrow 9q by the discharge wheel 9 shown by a one-dot chain line, and then discharged on the discharge conveyor 33 in the direction of the arrow 33F. ing.

  The gas turret 8 is formed by a gas injection means (not shown) provided with a gas such as carbon dioxide supplied from a gas supply device (not shown) corresponding to the can lid L which is conveyed on the conveyance track 8c. Immediately before the can lid L is put on the C can mouth, it is sprayed into the space between the can mouth of the can C and the can lid L, but detailed illustration and description are omitted.

  The can base of the seaming turret 7, the transporting means, the seaming rolls, etc. are provided corresponding to each other in the circumference, and the transporting means, the gas injection means and the discharge wheel of the can lid L of the gas turret 8 are provided. The conveying means (not shown) 9 is also provided at equal circumferences, and all rotate in synchronization with the can of the seaming turret 7 or the like.

  As shown in FIG. 2, the can seamer 11 is a satellite that rotates with respect to the rotating body 12 via a bearing B2 and a bearing B3 in a rotating body 12 that rotates around a main shaft 19 via a bearing B1. A plurality of rotating bodies 13 are provided on the circumference corresponding to the cans 23, and further, a shaft 14 is provided which is moved up and down by a driving means (not shown) in the direction of arrow 14F in the center of the satellite rotating body 13. A knockout pad 18 is attached to the lower end of the shaft 14 in the figure, and a can lid L (shown by a thick line in FIGS. 2 and 3) is placed on the mouth of the can C placed on the can base 23. Is pushed by the knockout pad 18 so as to move up and down. When the can C is raised, the can lid L is connected to the seaming chuck 17 attached to the lower part of the satellite rotating body 13 and the two-dot chain line shown in the figure. Seaming roll 24 Accordingly, the outer periphery of the can lid L is pushed in while being sandwiched via a mechanism (not shown), and the seaming roll 24, the seaming chuck 17, the can C, the can lid L, and the like rotate, so that the mouth of the can C It is comprised so that it may be seamed to a part.

Here, a seaming mechanism of the can lid L to the mouth of the can C will be described with reference to FIGS.
In the seaming turret 7, a bell split 20 having a pocket portion, which will be described later, is equally attached to the rotating body 12 in correspondence with the can base 23 provided on the circumference equally. A star wheel 22 having pockets 22P equally divided into a circumference corresponding to 23 is attached to the bell split 20 via a spacer 21, and a can C placed on the rotating can base 23 has a body portion. 1 is rotated and conveyed in the direction of arrow 7p in FIG. 1 while being engaged (guided) with the pocket 22P of the star wheel 22, and the can 23 is lifted and lowered in the direction of arrow 23F by a lifting mechanism (not shown). The can C is configured such that its body part moves up and down relatively with respect to the pocket 22P.

  The can lid L placed on the can C in the vicinity of the position Q shown in FIG. 1 described with reference to FIG. 1 is pressed by the knockout pad 18 as shown by the solid line in FIG. When the knockout pad 18 rises from the solid line state shown in FIG. 4 to the two-dot chain line state with the rise in the direction of the arrow 23F from the position 23L to the position 23H, the seaming attached to the satellite rotator 13 is performed. The edge 17P at the lower end of the outer periphery of the chuck 17 is engaged with the groove LR in the outer periphery of the can lid L, and the can C and the can lid L which are rotating by the rotation of the can base 23 are connected to the seam. The can lid L is configured to be seamed to the mouth of the can C by the rotational engagement between the chuck 17 and the seaming roll 24.

  As shown in FIG. 2, the satellite rotating body 13 is supported by a bearing B2 at the upper part and supported by a bearing B3 at the lower part, and is rotated at high speed by a driving means (not shown). The bearing B3 will be further described. Then, the upper bearing B3 shown in FIG. 3 has its upper end positioned at the stepped portion 12A of the rotating body 12 and the stepped portion 13A of the satellite rotating body 13, the lower end positioned by the spacer 12P and the spacer 13P, and the lower bearing B3 has the upper end positioned at the upper end. The lower end of the spacer 12P and the spacer 13P are positioned by a stepped portion 16A of the presser 16 attached to the lower surface of the rotating body 12 and a stepped portion 15A of the collar 15, and the bearing B3 is rotated by a lubricating oil circulation supply device (not shown). The lubricating oil is circulated and supplied from the lubricating oil hole H1 provided to the lubricating oil hole H2.

  An O-ring 13S is provided between the outer peripheral surface of the satellite rotating body 13 and the inner peripheral surface of the collar 15 so that the lubricating oil does not leak outside the rotating body 12. An oil seal 15 </ b> S is provided between the inner peripheral surfaces of the two and an O-ring 12 </ b> S is provided between the outer peripheral surface of the presser 16 and the inner peripheral surface of the rotating body 12.

FIG. 6 shows a conventional bell split 20 (in FIGS. 2, 3 and 5, the figure of the embodiment of the present invention is used and the symbol 20 of the conventional bell split is indicated by ()). As shown in FIG. 6, the split bell split 20a and the split bell split 20b are divided into two parts by two cuts 20s, but the two splits are integrated as shown in FIGS. 6 and 7 in a predetermined positional relationship. In this state, a plurality of pocket portions 20P are provided on the outer peripheral portion, and the seat 20F is fastened to the rotating body 12 with fastening parts (not shown), and the star 20 is attached to the seat 20G via a spacer 21. The wheel 22 is fastened with fastening parts (not shown).

Next, the operation of the conventional bell split 20 will be described.
First, the function of the bell split 20 will be described with reference to FIG.
When the can C filled with the contents placed on the can base 23 rises together with the can base 23, there is usually a can lid L pressed against the knockout pad 18, but if the can lid L is If it does not exist, the can C becomes free because there is no object to be pressed from above, and the centrifugal force caused by the rotation of the can base 23 and the centrifugal force caused by the rotation of the star wheel 22 5 is swung away in the E direction (outward direction), the filling contents in the can C are scattered, the can C interferes with the components of the can seamer 11, and the components are damaged. Trouble may occur, and it may take a long time to solve the trouble.
That is, the bell split 20 has a function of receiving and pressing the mouth portion of the raised can C when the seat lid 20P (see FIG. 7) of the pocket portion 20P is present when the can lid L is not present.

In the seaming mechanism of the can seamer 11, when the O-ring 13S, the oil seal 15S, the collar 15, the O-ring 12S, etc. in rotational contact with the oil seal 15S are worn and need to be replaced, or the bearing B3 When it is necessary to replace these parts, it is necessary to remove the presser foot 16 or the knockout pad 18, the seaming chuck 17, and the collar 15 for the replacement of these parts. It is necessary to keep.
The O-ring 13S or the like is replaced when the lubricating oil leaks to the outside of the rotating body 12 or when leakage is expected. Conventionally, when replacing one O-ring 13S or the like, It is necessary to remove either the half bell split 20a or the half bell split 20b of the half split bell split 20, and for this purpose, the presser 16 above the half bell split 20a or half bell split 20b, or All parts of the seaming mechanism such as the knockout pad 18, the seaming chuck 17, and the collar 15 must be removed, and the replacement work including reattachment of the removed parts requires a great deal of time (3 hours as an example). There is a fear that it will take.

According to Patent Document 1, when a star wheel is changed or maintenance is performed by changing the can body diameter, the star wheel divided into two discs is removed and attached to the star hub, and then replaced. To make it easier.
However, as described above, the bell split of the two-part structure to which the technology of Patent Document 1 is applied is used when the wear parts of the seaming mechanism are replaced, and the related parts of the seaming mechanism and the bell split are attached. There is a possibility that it takes a lot of time for removal and a lot of time for the replacement work. Moreover, the technique of the said patent document 1 is limited to the technique regarding replacement | exchange of the star wheel for can conveyance, and the technique about the easy attachment / detachment of a seaming mechanism and a bell split is not disclosed.

  In view of the circumstances described above, the present invention provides a rotary can seamer that seams the can lid to the can mouth by a seaming mechanism that is placed on the can mouth with the can lid covered on the circumference of the can. It is an object of the present invention to provide a can seamer having a bell split that facilitates replacement work and maintenance of an oil seal, a component that makes rotational contact with the oil seal, a bearing, and the like.

The present invention solves the above problems by the following means.
(1) The can seamer of the first means is a rotary type can seamer in which the can lid is seamed to the can mouth by a seaming mechanism that is arranged on the circumference of the can by covering the can lid with the can lid. Corresponding to the mechanism, the bell split which has the pocket part in the circumference equally on the outer peripheral part, the pocket body having the pocket part is divided in the circumferential direction, and the divided pocket body can be attached to and removed from the bell split body. It is characterized by comprising as follows.

  (2) In the can seamer of the second means, the pocket body having the pocket portion in the can seamer of the first means is a pocket body that is individually divided in the circumferential direction for each pocket portion. It is characterized by.

  (3) The can seamer of the third means is the pocket seam of the first means, wherein the pocket body having the pocket portion is divided into small units having two or several pocket portions. It is characterized by that.

  (4) The can seam of the fourth means is the can seamer according to any one of the first to third means, wherein the divided pocket body is divided into the bell split main body for each division unit. It is characterized in that it can be positioned and attached and removed.

  The present invention according to claim 1 corresponds to the seaming mechanism in a rotary type can seamer in which the can lid is seamed to the can mouth by a seaming mechanism arranged on the circumference of the can by covering the can lid with the can mouth. Then, the bell split having the pocket portion on the outer circumference equally divided, the pocket body having the pocket portion is divided in the circumferential direction, and the divided pocket body is configured to be attachable to and removable from the bell split main body. Thus, when replacing the worn parts of the seaming mechanism, it is possible to cope with the seaming mechanism by removing the target seaming mechanism without removing the non-replaceable seaming mechanism. This has the effect of making it easy to replace worn parts.

  The present invention according to claims 2 and 3 is the can seamer according to claim 1, wherein the pocket body having the pocket portion is divided into a pocket body or a pocket portion individually divided in the circumferential direction for each pocket portion. Since the pocket body is divided into small units having two or several places, there is an effect that the structure can be selected flexibly according to workability in replacement of worn parts of the seaming mechanism.

  According to a fourth aspect of the present invention, in the can seamer according to the first to third aspects, the divided pocket body can be positioned and attached to the bell split main body for each division unit. As a result, the reproducibility of attaching / detaching the bell split is remarkably improved, and the time for exchanging worn parts of the seaming mechanism can be greatly shortened.

It is a top view of a can seamer and its front and back devices. It is a partial front view of a can seamer, and is a partial cross-sectional view. FIG. 3 is an enlarged view of a part III in FIG. 2 and is a cross-sectional view. FIG. 4 is a partially enlarged view corresponding to FIG. 3, illustrating the operation. It is the elements on larger scale equivalent to Drawing 3 and Drawing 4, and is a figure explaining the function of bell split. FIG. 4 is a plan view of the bell split in the VI view of FIG. 3. It is VII-VII sectional drawing of FIG. It is a top view of the bell split of the can seamer concerning the 1st Embodiment of this invention, and is a figure equivalent to FIG. It is the cross section IX-IX figure of FIG. It is a top view of the bell split of the can seamer concerning the 2nd Embodiment of this invention, and is a figure equivalent to FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

(First embodiment of the present invention)
A first embodiment of the present invention will be described with reference to FIGS. 1, 8, and 9. FIG.
FIG. 1 is a plan view of a can seamer and its front and rear devices according to a first embodiment of the present invention.
FIG. 8 is a plan view of the bell split of the can seamer according to the first embodiment of the present invention, and corresponds to FIG.
9 is a cross-sectional view taken along the line IX-IX in FIG.
FIG. 1 is a diverted plan view of a conventional can seamer 11 and its front and rear devices, and the symbol of the can seamer according to the first embodiment of the present invention is indicated as “1”.
In the description based on FIGS. 8 and 9, a part of the drawings having the same structure as those in FIGS. 2 to 5 described with respect to the conventional bell split is used, and the same symbols are quoted. Omitted.
In the bell split 5 of the can seamer 1 according to the first embodiment of the present invention, the bell split main body 51 and the bell split main body 52 divided into two by the slit 5S are divided into two parts in a predetermined positional relationship as shown in FIGS. 9, a plurality of pocket bodies 6 having pocket portions 6 </ b> P are equally provided on the outer circumferential portion in an integrated state as shown in FIG. In addition, the star wheel 22 is fastened to the seat 51G and the seat 52G via the spacer 21 with fastening parts (not shown).

  The pocket body 6 is positioned on the bell split main body 51 or the bell split main body 52 by two positioning pins 6K and fastened by a fastening part 6T.

Next, the operation of the bell split 5 of the can seamer 1 according to the first embodiment of the present invention will be described.
When the O-ring 13S, the oil seal 15S, the collar 15, the O-ring 12S, etc. in rotational contact with the oil seal 15S need to be replaced due to wear, or the bearing B3 is replaced. When necessary, the presser 16 of the replacement target portion or only the pocket body 6 at the portion corresponding to the replacement target part of the knockout pad 18, the seaming chuck 17, the collar 15 and the bell split 5 is removed. As a result, the parts to be replaced can be easily replaced, and the positioning pin 6K improves the reproducibility of the attachment of the pocket body 6 to the bell split main body 51 or the bell split main body 52, thereby greatly shortening the replacement operation time. (For example, the replacement work time is reduced from the conventional 3 hours to about 15 minutes.)

(Second embodiment of the present invention)
Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a plan view of a conventional can seamer 11 and its front and rear devices, and the symbol of the can seamer according to the second embodiment of the present invention is indicated as 2 ().
FIG. 10 is a plan view of a bell split of a can seamer according to the second embodiment of the present invention, and corresponds to FIG.
In the description based on FIG. 10, some of the drawings having the same structure as those in FIGS. 2 to 5 described with respect to the conventional bell split are used, and the same reference numerals are quoted, and redundant description is omitted. 8 and FIG. 9 describing the first embodiment of the present invention are given the same reference numerals, and some of the drawings are used, and redundant descriptions are omitted.
The bell split 5W of the can seamer 2 according to the second embodiment of the present invention has a bell split main body 51W and a bell split main body 52W which are divided into two by a cut 5WS, and the two splits are shown in FIG. In such an integrated state, a plurality of pocket bodies 6 </ b> W having two pocket portions 6 </ b> P arranged on the outer circumference at equal circumferential intervals are provided.

  The pocket body 6W is positioned on the bell split main body 51W or the bell split main body 52W by two positioning pins 6K and fastened by two fastening parts 6T.

Next, the operation of the bell split 5W of the can seamer 2 according to the second embodiment of the present invention will be described.
When the O-ring 13S, the oil seal 15S, the collar 15, the O-ring 12S, etc. in rotational contact with the oil seal 15S need to be replaced due to wear, or the bearing B3 is replaced. When necessary, the presser 16 of the replacement target portion or only the pocket body 6W corresponding to the replacement target part of the knockout pad 18, the seaming chuck 17, the collar 15 and the bell split 5W is removed. As a result, the parts to be replaced can be easily replaced, and the reproducibility of the attachment of the pocket body 6W to the bell split main body 51W or the bell split main body 52W is improved by the positioning pins 6K, so that the replacement operation time is greatly shortened. The

  In the above description, the case where the pocket body is divided so as to correspond to the two seaming mechanisms has been described. However, the pocket body is not limited to two places, and may be a small pocket body such as three places. Of course, it may be appropriately selected according to the object of the present invention for facilitating work such as replacement of wear parts, and detailed description thereof will be omitted.

  In the above description, the positioning of each pocket body 6 to the bell split main body 51 and the bell split main body 52 and the positioning of each pocket body 6W to the bell split main body 51W and the bell split main body 52W are performed via the positioning pins 6K. Although the case where it is performed has been described, the present invention is not limited to this, and although not illustrated, the pockets are formed in the bell split main body 51 and the bell split main body 52, and the step portions provided in the bell split main body 51W and the bell split main body 52W. It is good also as positioning by hitting the level | step-difference part of the body 6 and the pocket body 6W, and detailed description is abbreviate | omitted.

1, 2 Can Cima 5, 5W Bell split 51, 52, 51W, 52W Bell split body 6, 6W Pocket body 6P (Bell split) pocket portion 6K Positioning pin C Can L Can lid

Claims (4)

  In a rotary type can seamer that covers the can lid over the mouth of the can and seams the can lid to the can by a seaming mechanism that is arranged on the circumference equally, the circumference is equally divided on the outer periphery corresponding to the seaming mechanism A bell split having a pocket portion, wherein the pocket body having the pocket portion is divided in the circumferential direction, and the divided pocket body is configured to be attachable to and removable from the main body of the bell split. .   2. The can seamer according to claim 1, wherein the pocket body having the pocket portion is a pocket body that is individually divided in the circumferential direction for each pocket portion.   2. The can seamer according to claim 1, wherein the pocket body having the pocket portion is a pocket body divided into small units having two or several pocket portions.   The can seamer according to any one of claims 1 to 3, wherein the divided pocket body is configured to be positioned and attached to the bell split main body for each division unit. Can Cima.

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