JP5363271B2 - Sleeve removal device from seaming spindle - Google Patents

Description

  The present invention relates to an apparatus for removing a sleeve having a sliding surface of an oil seal from a seaming spindle of a can lid winding machine (seamer).

The can lid winding machine is a device that fixes the lid to the main body by putting beer or juice into the main body (body) of the can and then winding and tightening the peripheral edge of the lid on the upper edge of the main body, For example, what is shown in FIG. 5 is mentioned (refer the following patent document 1).
The can lid winding machine in FIG. 5 includes a seaming head 101, a seaming spindle 102, a knockout rod 103, a seaming roll 104, and a lifter 105. The seaming head 101 is configured to revolve around a left axis (not shown). A plurality of seaming spindles 102 are arranged at equal intervals in the circumferential direction of the revolution track of the seaming head 101, and each seaming spindle 102 can be rotated (rotated) by a rolling bearing 106 with respect to the seaming head 101. It is supported.

A space 101a serving as an oil tank for lubricating oil is provided above the rolling bearing 106 of the seaming head 101, and the lubricating oil is supplied to the rolling bearing 106 from this space (oil tank) 101a. An oil seal 108 is attached to the lower end of the rolling bearing 106 by a clamp ring 107.
The seaming spindle 102 has a flange 102a that holds the lower end surface of the inner ring of the rolling bearing 106 arranged on the lowermost side, and the outer diameter on the distal end side of the flange 102a is smaller than that on the proximal end side. A sleeve 109 and a collar 110 are fitted on the small diameter portion 102b. The sleeve 109 and the collar 110 are firmly fitted onto the small diameter portion 102b of the seaming spindle 102 by providing a groove on the inner surface and attaching an O-ring 111 to the groove.

  The outer peripheral surface of the sleeve 109 on the flange 102a side is a sliding contact surface with which the lip portion of the oil seal 108 contacts. The collar 110 is arranged as a spacer for adjusting the position of the sleeve 109 (filling between the seaming chuck 112 and the sleeve 109). A seaming chuck 112 is screwed onto the outer peripheral surface of the most distal end of the seaming spindle 102 (portion having a smaller outer diameter than the small diameter portion 102b).

A knockout rod 103 is inserted into the seaming spindle 102 via a guide ring 113, and a pad 103 a for holding the can lid 121 is provided at the tip of the knockout rod 103.
The seaming roll 104 is approached toward the can body 122 placed on the lifter 105 by a seaming lever 114 supported by a lower end of a seaming shank shaft (not shown), and can be revolved and rotated. It is supported.

This can lid winding machine is driven as follows.
In the foreground process, a liquid such as beer or juice enters the can body 122, and a lid 121 is placed on the top of the lifter 105. First, the lifter 105 is disposed below the seaming spindle 102 and ascends, and the seaming chuck 112 presses the outer edge of the lid 121 and the upper edge of the barrel 122.

Next, the pad 103 a at the tip of the knockout rod 103 is pressed against the lid 121. Next, the seaming roll 104 is moved closer to the chuck 112 to rotate the seaming spindle 102 and the seaming roll 104 is rotated so that the peripheral edge of the lid 121 is fastened to the upper edge of the barrel 122. To do.
In such a can lid winding machine, the lubricating oil is supplied to the rolling bearing 106 from the upper oil tank 101a, and if the lubricating oil leaks, there is a risk of adhering to the lower can. It is necessary to reliably prevent this. For this purpose, an oil seal 108 is attached and a labyrinth reel 107a is provided on the clamp ring 107. However, if leakage occurs, it is necessary to stop driving the can lid winding machine and replace the oil seal 108. .

When the oil seal 108 is replaced, it is necessary to install a new oil seal 108 in a state where the sleeve 109 and the collar 110 are not present. Therefore, it is necessary to remove the seaming chuck 112, the sleeve 109, and the collar 110 from the seaming spindle 102.
Since the seaming chuck 112 is screwed to the tip of the seaming spindle 102, the removal thereof can be performed without any particular problem. However, since the sleeve 109 and the collar 110 are firmly attached to the seaming spindle 102 with an O-ring 111 inserted into the groove on the inner surface, they cannot be easily pulled out.

For this reason, it may take time to remove the sleeve 109 and the collar 110, or the outer peripheral surface may be damaged if the sleeve 109 and the collar 110 are forcibly pulled out with a tool such as a pulley remover. In particular, if the surface of the sleeve 109 where the oil seal 108 comes into sliding contact is damaged, the sleeve 109 cannot be used.
Patent Document 2 below proposes an inner race removing device for a bearing that removes an inner race of a bearing in which a snap ring is inserted into an annular groove on the outer periphery of the inner race that is press-fitted into the rotating shaft from the rotating shaft. . The apparatus includes a plurality of divided clamping members that sandwich the outer periphery of the inner race in the radial direction, an engaging portion that is provided on one side of the clamping member and engages with the snap ring, and a plurality of connecting members. And a support member connected to the clamping member and having a screw hole penetrating in the center thereof, and an extraction bolt.

  The extraction bolt is screwed into a screw hole of the support member, and a tip end portion thereof is brought into contact with a shaft end surface of the rotation shaft, and the tip portion is brought into contact with a shaft end surface of the rotation shaft. The inner race is extracted from the rotating shaft through the clamping member and the snap ring.

JP 2003-172457 A JP 2007-44822 A

  An object of the present invention is as a device for removing a sleeve having a sliding surface of an oil seal from a seaming spindle of a can lid winding machine, and the sleeve can be easily removed without damaging the oil seal sliding contact surface. Is to provide a device.

  In order to solve the above problems, the present invention includes a seaming head and a seaming spindle that is rotatably supported by the seaming head via a rolling bearing, and the seaming spindle includes the rolling head. A flange that holds a lower end surface on which an oil seal of an inner ring that constitutes the bearing is disposed. The flange has a plurality of radially extending recesses, and the oil seal slides below the flange. A sleeve detaching device for removing a sleeve from a seaming spindle of a can lid winding machine having a sleeve having a surface fitted thereon, comprising the following configurations (1) to (9): It is characterized by having.

(1) A plurality of divided bodies in which an outer packet member having a center hole in which the sleeve is disposed through a predetermined gap is divided in the circumferential direction of the sleeve.
(2) Protrusions formed on each of the divided bodies and projecting from the center hole toward the sleeve and fitting into the plurality of recesses.
(3) A coupling member that couples the plurality of divided bodies.
(4) A rod-shaped member extending in the axial direction of the sleeve from each of the divided bodies.
(5) A plate-like member having an internal thread formed through the plate surface at the center and an engaging portion for engaging the tip of the rod-like member at the periphery.
(6) A fixing member that fixes the tip of the rod-like member to the engaging portion of the plate-like member.
(7) A screw rod member screwed into the female screw of the plate-like member.
(8) having an end surface that is brought into contact with the front end surface of the seaming spindle, and a protrusion that is inserted into the front end portion of the seaming spindle, and protruding from the plate member of the screw rod member toward the outer packet member. A centering member attached to the tip of the side so as to allow rotation of the screw rod member.
(9) An operation portion provided at an end of the screw rod member opposite to the tip to which the centering member is attached.

The sleeve removing apparatus according to the present invention is used in the following method for the one in which the seaming spindle is removed from the can lid winding machine with the rolling bearing and the sleeve attached.
First, with the one removed as described above placed with the tip side of the seaming spindle facing upward and supported so that the lower part does not move, the plurality of divided bodies are directed with the tips of the rod-shaped members facing upward. In this state, it is arranged on the radially outer side of the sleeve that is externally fitted to the seaming spindle, and the convex portion of each divided body is fitted into the concave portion of the flange of the seaming spindle. In this state, each divided body is coupled by a coupling member. As a result, the sleeve is arranged in the center hole of the outer packet member (with the divided body coupled) via a predetermined gap, and the end surface on the flange side of the sleeve is arranged on the convex portion.

  Next, the plate member to which the screw rod member is screwed is disposed above the seaming spindle with the tip end (centering member side) of the screw rod member facing downward, and the engagement of the plate member. The tip of the rod-shaped member extending upward from each divided body is engaged with the joint. By operating the operation portion in this state and rotating the screw rod member screwed to the plate-like member downward, the protrusion of the centering portion is inserted into the tip end portion of the seaming spindle, Touch the end surface of the centering part to the tip surface of the seaming spindle. The length of the rod-shaped member is a length that can realize this state. Thereby, the centering of the seaming spindle and the screw rod member is performed. Next, the tip of the rod-shaped member is fixed to the engaging portion of the plate-shaped member.

  In this state, by continuing to rotate the screw rod member in the same direction, the end surface of the centering portion is strongly pressed against the end surface of the seaming spindle, and when the screw rod member cannot be lowered, the screw rod member is screwed. The plate-like member having the mating female screw is raised. Along with this, the outer packet member rises together with the rod-shaped member fixed to the plate-shaped member. Since the flange-side end surface of the sleeve is disposed on the convex portion of the outer packet member, the convex portion moves the sleeve upward as the outer packet member rises.

  Here, the length of the threaded rod member is determined such that the sleeve can be removed from the outer fitting position of the seaming spindle by the movement according to the axial dimension of the sleeve to be removed and the outer fitting position with respect to the seaming spindle. Thus, the sleeve is removed from the seaming spindle by the movement. Further, since the sleeve is disposed in the center hole of the outer packet member via a predetermined gap, the inner peripheral surface of the sleeve does not contact the inner peripheral surface of the outer packet member. No scratches on the outer peripheral surface of the.

  According to the sleeve removing device of the present invention, the sleeve can be easily removed from the seaming spindle without scratching the oil seal sliding contact surface.

It is the perspective view which looked at the sleeve removal apparatus equivalent to one Embodiment of this invention from the upper side in the assembled state. It is the perspective view which looked at the sleeve removal apparatus equivalent to one Embodiment of this invention from the lower side in the assembled state. It is a perspective view which shows the state in the middle of attaching the sleeve removal apparatus of embodiment to the seaming spindle. It is sectional drawing which shows the relationship between the sleeve removal apparatus of embodiment, a sleeve, and a seaming spindle, Comprising: (a) shows the state (centering state) in which attachment of the sleeve removal apparatus was completed, (b) The last stage of the sleeve removal operation | work by a sleeve removal apparatus is shown. It is sectional drawing explaining the part of the seaming spindle of a can lid winding machine.

Embodiments of the present invention will be described below.
1 and 2 are views showing a sleeve removing device of this embodiment. FIG. 1 is a perspective view seen from above in an assembled state, and FIG. 2 is a perspective view seen from below in an assembled state.
The sleeve removing device of this embodiment includes an annular member (outer member) 1 consisting of a pair of semi-annular members (a plurality of divided bodies) 11, 12, four rod-like members 2, a plate-like member 3, A screw rod member 4, a female screw member 5, and a centering component (centering member) 6 are provided.

  On each end surface of the semi-annular member 11 facing the semi-annular member 12, a protrusion 11a is formed. A recess 12a into which the protrusion 11a is fitted is formed in the semi-annular member 12. A through hole 12b is formed near the recess 12a of the semi-annular member 12 so as to penetrate from the outer peripheral surface to the end surface facing the semi-annular member 11. This through-hole 12b is comprised by the large diameter part and the small diameter part, the end surface side is a small diameter part, and the outer peripheral surface side is a large diameter part. The head portion of the bolt 13 is disposed in the large diameter portion on the outer peripheral surface side, and the shaft portion of the bolt 13 is disposed in the small diameter portion.

The semi-annular member 11 is also formed with a through-hole 11b penetrating from the outer peripheral surface to the end surface facing the semi-annular member 12. This through hole 11b is also composed of a large diameter portion and a small diameter portion, with the end surface side being a small diameter portion and the outer peripheral surface side being a large diameter portion. A thread groove into which the tip of the bolt 13 is screwed is formed in the small diameter portion on the end face side.
The semi-annular member 11 and the semi-annular member 12 are bolts (coupling members) inserted from the through holes 12b of the semi-annular member 12 by fitting the protrusions 11a of the semi-annular member 11 into the recesses 12a of the semi-annular member 12. The tip end of 13 is coupled by screwing into the thread groove of the semi-annular member 11 to become an annular member (outer member) 1. The diameter of the center hole 10 of the annular member 1 is designed to be slightly larger (for example, 4 mm or more) than the outer diameter of the sleeve to be removed. Thereby, the sleeve to be removed is disposed in the center hole 10 of the annular member 1 through a predetermined gap (so that the interval between the outer peripheral surface of the sleeve and the inner peripheral surface of the annular member 1 is 2 mm or more, for example). Is done.

Grooves 11c and 12c extending in the radial direction are formed at the circumferential center of the lower surfaces of the semi-annular member 11 and the semi-annular member 12 (opposite surfaces on the side where the rod-shaped member 2 extends). By fitting the base end of the protruding member 14 into the grooves 11c and 12c and fixing with the set screw 15, the distal end (convex portion) 14a protrudes into the center hole 10 (to the sleeve side of the center hole 10). ing.
The four rod-shaped members 2 are formed with male screws at both ends in the length direction, and the male screws at one end have two circumferential positions of the semi-annular members 11 and 12 (the distance from the center in the circumferential direction is the same). Screwed into a female screw provided in the position). Thereby, each of the two rod-shaped members 2 extends vertically (in the axial direction of the sleeve) from the upper surfaces of the semi-annular members 11 and 12. The upper end (other end) portion of each rod-like member 2 is a small diameter portion, and a male screw 21 is formed in the small diameter portion.

  The planar shape of the plate-like member 3 is rectangular, and through-holes (engaging portions) 31 that penetrate the small-diameter portion (upper end portion) of the rod-like member 2 are formed at four locations that are the same distance from the center point. ing. The diameter of the through hole 31 is larger than the small diameter portion of the rod-shaped member 2 (dimension that allows the small diameter portion to be loosely fitted), and smaller than the main portion (portion other than the small diameter portion) of the rod-shaped member 2. Further, the axial dimension of the small diameter portion of the rod-shaped member 2 is made larger than the dimension of the plate-shaped member 3 in the plate thickness direction.

  Thus, when the upper end portion of the rod-like member 2 is inserted into the through hole 31 of the plate-like member 3, there is a gap between them, and the flange surface 21a (see FIG. 3) at the lower end of the small-diameter portion of the rod-like member 2 The lower surface of the member 3 is supported, and the male screw 21 of the rod member 2 protrudes above the plate member 3. The upper end of the rod-like member 2 is fixed to the plate-like member 3 by screwing the wing nut 22 into the protruding portion of the male screw 21.

The plate-like member 3 is also formed with a through-hole 32 centered on the rectangular center point at the center in the plane, and a pair of female screw holes 33 are formed at positions along the radial direction across the hole. ing. Using these holes, a female screw member 5 for screwing the screw rod member 4 is attached to the plate-like member 3 with fixing bolts 53. Thereby, the female thread which penetrates the center in the plate-shaped member 3 is formed.
The female screw member 5 includes a body portion 51 disposed in the through hole 32 and a flange portion 52 disposed on the lower surface of the plate-like member 3, and a female screw 51 a for screwing the screw rod member 4 to the body portion 51 is formed. Has been. The flange portion 52 is formed with a through hole 52 a that is in communication with the female screw hole 33 of the plate-like member 3 and in which the head of the fixing bolt 53 is disposed.

The screw rod member 4 includes a male screw portion 41 in which a male screw to be engaged with the female screw member 5 is formed, and a hexagonal rod portion (operation portion) 42 formed above (base end). A centering component 6 is attached via a bearing component 43 below (front end) of the male thread portion 41 of the screw rod member 4. The bearing part 43 includes a shaft portion 43a to which the tip of the male screw portion 41 is fixed, an inner ring 43b, and an outer ring 43c. The shaft portion 43a and the inner ring 43b are integrally formed.
The semi-annular members 11, 12, the rod-like member 2, the plate-like member 3, and the screw rod member 4 are made of SUS304, and the female screw member 5 is made of gunmetal (bronze containing 8 to 12% tin).

  The centering component 6 includes a large-diameter portion 61 and a small-diameter portion 62, and the small-diameter portion 62 at the tip is a protrusion that is inserted into the tip of the seaming spindle. The end surface 61a on the small diameter portion 62 side of the large diameter portion 61 is a portion that presses against the tip surface of the seaming spindle. A concave portion for accommodating the outer ring 43 c of the bearing component 43 is formed in the large diameter portion 61. The centering component 6 is made of nylon, and is fixed to the outer ring 43c by elastically deforming the concave portion of the large-diameter portion 61 and fitting it to the outer ring 43c.

Thereby, when the screw rod member 4 rotates, the shaft part 43a and the inner ring 43b of the bearing part 43 rotate, but the outer ring 43c and the centering part 6 of the bearing part 43 do not rotate. That is, the centering component 6 is attached to the tip of the screw rod member 4 by the bearing component 43 so as to allow the screw rod member 4 to rotate.
As described above, the sleeve detaching device of this embodiment has a plate-like support component including a pair of semi-annular members 11 and 12 to which two rod-like members 2 are fixed before use. The member 3 is divided into a moving part in which a screw rod member 4 having a centering part 6 attached to the tip thereof is screwed via a female screw member 5, a bolt 13, and a thumbscrew 22.

The sleeve removing apparatus of this embodiment is used as follows.
First, after removing the seaming chuck 112 from the seaming spindle 102 of the can lid winding machine shown in FIG. 5, the clamp ring 107 is removed and the oil seal 108 is removed. When the seaming spindle 102 is pulled out in this state, the seaming spindle 102 comes off with the rolling bearing 106, the sleeve 109 and the collar 110 attached thereto. This is placed with the tip side of the seaming spindle 102 facing upward and fixed so that the lower part does not move.

Next, support parts are attached to the sleeve 109 and the seaming spindle 102 in this state by the following method.
That is, as shown in FIG. 3, the semi-annular members 11 and 12 are placed on the radially outer side of the sleeve 109 that is externally fitted to the seaming spindle 102 with the male screw 21 of the rod-like member 2 facing upward. The protrusions 14a of the semi-annular members 11 and 12 (tip portions of the protrusion members 14) are fitted into the recesses 102b of the flange 102a of the seaming spindle 102. Next, the protrusion 11 a of the semi-annular member 11 is fitted into the recess 12 a of the semi-annular member 12, and the tip of the bolt 13 inserted from the through-hole 12 b of the semi-annular member 12 is inserted into the through-hole 11 b of the semi-annular member 11. Thread into the screw groove.
As a result, as shown in FIG. 4A, the sleeve 109 is disposed in the center hole 10 of the annular member 1 through a predetermined gap, and the end surface of the sleeve 109 on the flange 102a side is the protrusion 14a. Placed on top.

Next, the moving component is attached to the support component and the seaming spindle 102 in this state by the following method.
That is, first, the protruding amount of the male thread portion 41 of the screw rod member 4 from the plate-like member 3 is reduced on the side where the centering component 6 is fixed. Next, the plate member 3 is arranged above the seaming spindle 102 with the centering component 6 side of the screw rod member 4 facing downward, and the upper end portion where the male screws 21 of the four rod members 2 are formed. Is put into each through hole 31 of the plate-like member 3. In this state, a gap exists between the upper end portion (small diameter portion) of the rod-like member 2 and the through hole 31 of the plate-like member 3, the male screw 21 protrudes above the plate-like member 3, and the small-diameter portion of the rod-like member 2. The lower surface of the plate-like member 3 is supported by the lower flange surface 21a.

  In this state, by rotating the hexagonal bar portion 42 and rotating the screw rod member 4 downward, the small diameter portion (projection) 62 of the centering component 6 is inserted into the tip end portion of the seaming spindle 102, and the centering component 6 The end surface 61a of the seam is brought into contact with the tip surface 102c of the seaming spindle 102. Thereby, the centering of the seaming spindle 102 and the screw rod member 4 is performed. Next, the upper end of the bar-shaped member 2 is fixed to the plate-shaped member 3 by screwing the wing nut 22 into the male screw 21 of each bar-shaped member 2. FIG. 4A shows this state.

From this state, the hexagonal bar portion 42 is continuously rotated in the same direction, and the screw rod member 4 is continuously rotated downward. Accordingly, when the end surface 61a of the centering component 6 is strongly pressed against the end surface 102c of the seaming spindle 102 and the screw rod member 4 cannot be lowered, the screw rod member 4 is screwed through the female screw member 5. The plate-like member 3 is raised.
Along with this, the annular member 1 rises together with the rod-like member 2 fixed to the plate-like member 3. As the annular member 1 is raised, the convex portion 14a moves upward in the sleeve 109, whereby the sleeve 109 and the collar 110 thereabove are removed from the seaming spindle 102. FIG. 4B shows this state.

  At the time of removal, the sleeve 109 is disposed in the center hole 10 of the annular member 1 with a predetermined gap, so that the outer peripheral surface of the sleeve 109 is not damaged. Further, by fixing the gun screw female screw member 5 to the plate member 3, the female screw 51a is formed at the center of the plate member 3, so that the screw rod member 4 screwed into the female screw 51a is smoothly rotated. it can. Furthermore, since the centering component 6 is attached to the tip of the screw rod member 4 via the bearing component 43, the screw rod member 4 can be smoothly rotated while maintaining the centering state by the centering component 6.

1 Toroidal member (outer packaging member)
10 Center hole 11 Semi-annular member (divided body)
12 Semi-annular member (divided body)
11a Protrusion 11b Through-hole 12a Concave 12b Through-hole 13 Bolt 14 Protruding member 14a Convex 2 Bar-shaped member 21 Male screw 21a Flange surface 22 Wing nut 3 Plate-shaped member 31 Through-hole (engaging portion)
32 Through-hole 33 Female threaded hole 4 Screw rod member 41 Male thread portion 42 Hexagonal rod portion (operation portion)
43 Bearing Parts 43a Shaft 43b Inner Ring 43c Outer Ring 5 Female Thread Member 51 Female Thread Member Body 51a Female Thread 52 Female Thread Member Flange 52a Through Hole 53 Fixing Bolt 6 Centering Parts 61 Large Diameter 61a Large Diameter End Face The part that presses against the tip of the ming spindle)
62 Small diameter part (projection inserted into the tip of the seaming spindle)
DESCRIPTION OF SYMBOLS 101 Seaming head 101a Space used as oil tank of lubricating oil 102 Seaming spindle 103 Knockout rod 104 Seaming roll 105 Lifter 106 Rolling bearing 107 Clamp ring 108 Oil seal 109 Sleeve 110 Collar 111 O-ring 112 Seaming chuck 114 Seaming lever 121 Can lid 122 Can body (main body)

Claims (1)

A seaming head, and a seaming spindle rotatably supported by the seaming head via a rolling bearing, wherein the seaming spindle is provided with an oil seal of an inner ring constituting the rolling bearing. A can lid having a flange for holding a lower end surface, the flange having a plurality of recesses extending in a radial direction, and a sleeve having a sliding surface of the oil seal is fitted on the lower side of the flange A device for removing the sleeve from the seaming spindle of a winding machine,
A plurality of divided bodies in which an outer packet member having a central hole in which the sleeve is arranged via a predetermined gap is divided in the circumferential direction of the sleeve;
Protrusions formed on each of the divided bodies, projecting from the center hole toward the sleeve and fitting into the plurality of recesses,
A coupling member for coupling the plurality of divided bodies;
A rod-shaped member extending in the axial direction of the sleeve from each of the divided bodies;
A female member that penetrates the plate surface at the center, and a plate-like member that has an engaging portion that engages the tip of the rod-like member at the periphery;
A fixing member that fixes the tip of the rod-like member to the engaging portion of the plate-like member;
A screw rod member screwed into the female screw of the plate-like member;
A tip end on the side of the screw rod member that protrudes from the plate-like member toward the outer packet member side, having an end surface that is brought into contact with the tip end surface of the seaming spindle; And a centering member attached to allow rotation of the screw rod member;
An operation portion provided at an end opposite to a tip to which the centering member of the screw rod member is attached;
A device for removing a sleeve from a seaming spindle.

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