KR101982967B1 - A can seammer - Google Patents

Abstract

The present invention relates to a can seamer capable of performing precise control and precise machining and easily replacing a seaming roller unit. According to the present invention, the can seamer for bonding and sealing a can body and a can lid transmits the rotation speed of a stepping motor without reducing the rotation speed to a seaming chuck and transmits, to a cam for controlling motion of a seaming roll unit, the rotation speed of the stepping motor after reducing the rotation speed of the stepping motor through two-step deceleration of a deceleration pulley and a deceleration gear set. According to the present invention, the can seamer capable of the precise machining through the precise control can be realized. Accordingly, a defective rate can be remarkably reduced and food hygiene and safety can be improved. Further, according to the present invention, a seaming roller can be easily replaced, thereby improving workability remarkably.

Description

{CAN CAN SEAMMER}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a canister. More particularly, the present invention relates to a canister capable of precise control and precise machining.

Recently, a large number of cans are used for packaging drinks and foods. The can body and the can lid are prepared in advance, and then the can body and the lid are sealed and sealed using a can sealer. In this way, the double seam method is widely used. In the double-chamber method, a curl of the can lid is wound around the end of the flange of the can body, and the body is pressed by pressing the can body to the lid. In this case, the sealing compound compound) to maintain the sealability of the tube vessel. The same applies to the lid and bottom seal of the canister. The dual winding machine is a two-step process in which the first winding roll operates to form a double winding body and then the second winding roll is pressed and sealed. The quality of the double-sided body is determined by the shape of the hook and the suitability of the squeezing of the can material.

Further, when the life of the seaming roller is short or the seaming is performed under different conditions, it is necessary to replace the seaming roller. In this case, it is necessary to remove the seaming roller by pulling it upward. In this case, the upper space is narrow and the bolt is loosened.

The present inventors have completed the present invention after repeatedly carrying out studies to solve the above problems.

1. Registration Patent Publication No. 10-056881 (Mar. 4, 2006) 2. Registration Patent Publication No. 10-0606227 (Jul. 21, 2006)

The present invention seeks to provide a can seamer capable of precise control and precision machining and easy replacement of a seaming roller.

According to an aspect of the present invention, there is provided a can seamer for sealing and sealing a can body and a can lid, the can system comprising: a stepping motor driven by receiving power; A reduction gear set having a diameter larger than that of the drive pulley and connected to the shaft of the reduction pulley and connected to the drive pulley by a belt to receive the drive force and reducing the rotation speed by a combination of gears, A cam roller which is connected to the reduction gear set and rotates in accordance with the rotation of the reduction gear set, the cam having an eccentric curved surface as an outer circumferential surface whose distance from the center to the outer circumferential surface is different, a cam roller which rolls along the outer circumferential surface of the cam, And is moved inward or outward according to the movement of the cam roller to press the rim of the rotating lid A seaming roll unit for wrapping a rim portion of the lid around the outer periphery of the can body and sealing the seaming chuck pulley, a shim pulley for receiving a driving force from a reduction pulley, And a lifter for lifting the assembly after covering the can lid to the can body and then lifting up the can lid and then lifting the can lid against the seaming chuck and rotating according to the rotation of the lid of the can, The rotation speed of the stepping motor is transmitted as it is and the cam for controlling the motion of the seaming roll unit is reduced to the rotation speed of the stepping motor through the two-stage deceleration of the deceleration pulley and the reduction gear set, .

The reduction gear set includes a sun gear that rotates in accordance with rotation of a reduction pulley connected to an axis of a reduction pulley, an outer ring gear, and a plurality of planetary gears disposed between the sun gear and the ring gear, And the rotation speed of the reduction pulley may decrease through the sun gear, the planetary gear and the ring gear.

The cam may have a double cam structure with different upper and lower eccentric curved surfaces.

The driving pulley, the deceleration pulley, and the seaming chuck pulley include a timing pulley having pitches formed at regular intervals on the outer circumferential surface, and the driving pulley, the deceleration pulley, and the seaming chuck pulley may be sequentially connected by a timing belt having grooves formed therein at regular intervals.

The seaming roll unit includes a first seaming roll unit and a second seaming roll unit, and the edge portion of the can body and the lid of the can is primarily bent by the first seaming roll unit, And the bent portion is pressed by the second seaming roll unit to seal the can body and the can lid.

The seaming roll unit is cylindrical and has a fastening protrusion formed on the upper end of the outer circumference. On the inner surface of the seaming roll unit is formed a through-hole through which the fastening means can slide, A seaming roll support having grooved engagement holes, and a seaming roll rotatably coupled to the engaging means.

According to the present invention, a can seamer capable of precise machining through precise control can be realized. Through this, it is possible to remarkably reduce the defective rate and improve the food hygiene and safety.

Further, according to the present invention, the seaming roller can be easily replaced, and the workability can be remarkably improved.

1 is a perspective view of a can sheer according to an aspect of the present invention.
Fig. 2 is a schematic diagram of the top cover removed in Fig. 1. Fig.
3 is an exploded perspective view of a reduction gear, a reduction gear set and a cam of a canister in accordance with an aspect of the present invention.
4 is a bottom perspective view of a cam of a canister according to an aspect of the present invention.
5 is a perspective view of the can sheer of FIG. 2 viewed from above.
6 is a perspective view of the seam roll unit of the can sheer according to one aspect of the present invention.
7 is an exploded perspective view of Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings may be exaggerated for clarity of description, and the elements denoted by the same reference numerals in the drawings are the same elements. In the present invention, the expression " first " or " second " does not mean order and importance, but merely for distinguishing components.

The present invention relates to a can seamer capable of precise control and precision machining and easy replacement of a seaming roller unit.

1 is a perspective view of a can sheer according to an aspect of the present invention. Fig. 2 is a schematic diagram of the top cover removed in Fig. 1. Fig. 3 is an exploded perspective view of a reduction gear, a reduction gear set and a cam of a canister in accordance with an aspect of the present invention. 4 is a bottom perspective view of a cam of a canister according to an aspect of the present invention. 5 is a perspective view of the can sheer of FIG. 2 viewed from above. 6 is a perspective view of the seam roll unit of the can sheer according to one aspect of the present invention. 7 is an exploded perspective view of Fig.

1 to 7, one aspect of the present invention is a can seamer for sealing and sealing a can lid and a can lid, wherein the seaming chuck 60 is provided with a stepping motor And the cam 22 for controlling the motion of the seaming roll unit 40 is subjected to two-stage deceleration of the deceleration pulley 20 and the reduction gear set 24 to rotate the rotation speed of the stepping motor Is reduced and transmitted.

The present invention employs a stepping motor capable of precise control and reduces the rotational speed of the cam 22 for controlling the motion of the seaming roll unit 40 through two-step deceleration, It is possible to more precisely control the sealing of the lid of the can, which can significantly reduce defects due to over-sealing or insufficient sealing.

The can sheer according to one aspect of the present invention can use a stepping motor (not shown) as a drive motor. The stepping motor is driven by electric power, and precise control is possible. The driving pulley 10 is connected to the rotating shaft of the stepping motor. When the stepping motor is driven, the driving pulley 10 can be rotated as it is.

The driving force of the stepping motor is transmitted to the seaming chuck 60 at the rotational speed as it is, and the rotation speed is transmitted to the cam 22 for controlling the movement of the seaming roll unit 40 at a reduced speed. Deceleration can be done in two steps.

The first stage can be decelerated by using a reduction pulley 20 having a diameter larger than that of the drive pulley 10. The drive pulley 10 and the reduction pulley 20 may be connected by a belt 100 to transmit a driving force. The rotation speed may be reduced by adjusting the diameter ratio. For example, in the first step, the rotation speed can be reduced at a ratio of 3: 1.

In the second step, the reduction gear set 24 can be used to reduce the rotation speed. The reduction gear set 24 is connected to the shaft 21 of the reduction pulley 20 to transmit the rotation of the reduction pulley 20 and the rotation speed can be reduced by the combination of the gears.

The reduction gear set 24 may include a sun gear 25, a ring gear 27, and a planetary gear 26. The sun gear 25 is connected to the shaft 21 of the reduction pulley and the driving force due to the rotation of the reduction pulley 20 can be transmitted to the sun gear 25. A planetary gear 26 may be disposed around the sun gear 25 as a center. The number of the planetary gears 26 may be three. A ring gear 27 surrounding the planetary gear 26 may be disposed. The planetary gear 26 is arranged between the outer ring gear 27 and the sun gear 25 and the ring gear 27 and meshed with the sun gear 25 and the ring gear 27 Lt; / RTI > The sun gear 25, the planetary gear 26 and the ring gear 27 mesh with each other and the driving force of the reduction pulley 20 is transmitted to the sun gear 25, the planetary gear 26 and the ring gear 27 ). ≪ / RTI > The rotational speed of the reduction pulley 20 can be further reduced through the reduction gear set 24.

For example, in the second stage, the rotation speed can be reduced at a ratio of 7: 1. The overall speed of the first and second steps can be reduced to 21: 1. That is, when the stepping motor 21 turns, the cam 22 rotates once and the seaming chuck 60 rotates 21 times. This reduction ratio can be designed differently depending on how the shape of the outer peripheral surface of the cam 22 is designed.

The cam 22 may be connected to the reduction gear set 24. Concretely, the cam 22 can be connected to the ring gear 27, which is the final stage of the reduction gear set 24, to be coupled. The cam 22 can be engaged with the ring gear 27 through a bolt or the like. As a result, the rotation of the ring gear 27 continues to the rotation of the cam 22, and the cam 22 can be rotated according to the reduced rotation speed through the two-step deceleration process.

The outer circumferential surface of the cam 22 may have an eccentric surface having a different distance from the center to the outer circumferential surface (see Fig. 4). The cam 22 may have a double cam structure in which upper and lower eccentric curved surfaces are different. For example, the first seaming roll unit 140 can be moved in correspondence with the eccentric curved surface formed on the upper part through the first cam roller 231, and the eccentric curved surface formed at the lower part can be moved through the second cam roller 231 The two seaming roll units 240 can move correspondingly. 4, the upper curved surface 22-1 and the lower curved surface 22-1 are different in trajectory, so that the motion of the first and second seaming roll units 140 and 240 Can be different. After the first seaming roll unit 140 is moved first to bend the rim of the can body 70 and the can lid to form the bend by using the difference in locus, the second seaming roll unit 240 moves to move the bend So that it can be completely sealed by pressing. In this case, the first seaming roll 45 of the first seaming roll unit 140 should have a sectional structure capable of forming a bent portion, and the second seaming roll 45 of the second seaming roll unit 240 should have a cross- It must have a cross-sectional structure that can be pressed.

The cam rollers 131 and 231 come into contact with the outer circumferential surface of the cam 22 and can follow the outer peripheral surface of the cam 22 when the cam 22 rotates. When the cam 22 rotates, the cam rollers 131 and 231 can move up and down (linear motion) corresponding to the locus of the eccentric surface formed on the outer circumferential surface of the cam 22.

The seaming roll unit 40 is connected to the cam rollers 131 and 231 and moves inward or outward according to the movement of the cam rollers 131 and 231 so as to press the rim of the rotating can lid, Can be wound around the outer periphery of the can body 70 and sealed.

The seaming roll unit 40 may be composed of a first seaming roll unit 140 and a second seaming roll unit 240. For example, the first seaming roll unit 140 can primarily bend the can main body 70 and the can lid so that the rim of the can main body 70 overlaps the rim of the can main body 70 by applying a force to the rim of the can main body 70 Thereafter, the second seaming roll unit 240 acts secondarily to press the bent portion to seal the can body 70 and the can lid.

The seaming roll unit (40) according to the present invention can be easily replaced and can be easily replaced when the seaming roll is damaged or its life is shortened, so that the production efficiency can be improved.

5 and 6, the seaming roll unit 40 includes a seaming roll 45, a seaming roll support 41 to which the seaming roll 40 is coupled, fastening means for fastening the seaming roll to the support 41 42).

The fastening means 42 may have a cylindrical shape and a fastening protrusion 51 may be formed on the upper end of the outer circumferential surface.

The seaming roll support portion 41 may have a coupling hole 50 into which the fastening means 42 can be inserted. A through hole 48 through which the fastening means 42 can slide and penetrates and through which the fastening protrusion 51 of the fastening means 42 can pass can be formed on the inner surface of the coupling hole 50. A coupling groove 49 may be formed in the coupling hole 50. The fastening means 42 can be inserted into the fastening groove 49 by turning the fastening means 42 through the fastening hole 50 by a predetermined angle. Thus, the fastening means 42 can be completely coupled to the fastening hole 49.

The engaging means 42 is separated from the engaging groove 49 and then is turned in the opposite direction to place the engaging projection 51 in the through groove 48 and then the engaging means 42 is inserted into the engaging hole 50 to separate them. It is easy to combine and disassociate, and workability can be remarkably improved.

The seaming roll 45 can be coupled to the fastening means 42 so as to be rotatable. For example, a bearing 44 may be disposed between the seaming roll 45 and the seaming roll support 41 and tightened with bolts 47. [ By the bearing 44, the seaming roll 45 is freely rotatable.

The seaming chuck 60 can be brought into close contact with the lid of the can to rotate the lid of the can. The seaming chuck 60 is connected to the seaming chuck pulley 61, and when the seaming chuck pulley 61 rotates, the seaming chuck 60 can rotate accordingly. The seaming chuck pulley 61 is connected to the reduction pulley 20 and the drive pulley 10 by the belt 100 so that the driving force can be transmitted from the drive pulley 10 or the reduction pulley 20. In the case of the decelerating pulley 20, the rotation speed is reduced by varying the diameter of the pulley, but the seaming chuck 60 can rotate at a ratio of 1: 1 with the stepping motor without decreasing the rotation speed. The sizes of the driving pulley 10 and the seaming chuck pulley 61 can be the same.

The lifter 80 may be disposed so that the seaming chuck 60 corresponds to the position. The lifter 80 can load an assembly of can lids on the can body 70. Thereafter, the lifter 80 rises and the can lid can be brought into close contact with the seaming chuck 60. The can lid can be rotated by rotation of the seaming chuck 60, so that the lifter 80 can also rotate. A bearing (not shown) is mounted on the lower end of the lifter 80, and can rotate in response to the rotation of the seaming chuck 60.

The drive pulley 10, the deceleration pulley 20, and the seaming chuck pulley 60 may be timing pulleys having pitches at regular intervals on the outer circumferential surface. The driving pulley 10, the reduction pulley 20 and the seaming chuck pulley 60 may be sequentially connected to each other by a timing belt 100 having grooves formed therein at regular intervals. By adopting the timing pulley and the timing belt, it is possible to prevent the belt from slipping beforehand, and precise control is possible.

The cam roller supporting portions 132 and 232 supporting the cam rollers 131 and 231 can be connected via the supporting portion connecting shafts 133 and 233 to the shimming roll unit supporting portion 41 supporting the shimming roll unit 40 . It is possible to pivot about the supporting part connecting shafts 133 and 233. When the cam roller supporting portions 132 and 232 are moved in either direction, the seaming roll unit supporting portion 41 can move in the opposite direction about the supporting portion connecting shafts 133 and 233. When the cam rollers 131 and 231 are moved away from the center of the cam 22 due to such a principle, the cam roller supports 132 and 232 are opened to each other while the cam roll unit support portion 41, on the other hand, It can be moved to narrow inward. Therefore, the seaming roll 45 can press the rim of the can main body 70 and the lid of the can to form the bent portion, or to press and seal the rim.

The cam rollers 131 and 231 may include elastic members 134 and 234 so that the cam rollers 131 and 231 can continuously contact the outer circumferential surface of the cam 22 even when the cam 22 rotates. For example, the elastomer may be a tension spring. However, the present invention is not limited to this, and any material can be used as long as it can be brought into contact with the outer peripheral surface of the cam roller cam.

The terms used in the present invention are intended to illustrate specific embodiments and are not intended to limit the invention. The singular presentation should be understood to include plural meanings, unless the context clearly indicates otherwise. The word " comprises " or " having " means that there is a feature, a number, a step, an operation, an element, or a combination thereof described in the specification. The present invention is not limited to the above-described embodiments and the accompanying drawings, but is intended to be limited only by the appended claims. It will be apparent to those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. something to do.

10: drive pulley 11: drive shaft
20: Deceleration pulley 21: Deceleration pulley shaft
22: cam 22-1: upper cam
22-2: lower cam 24: reduction gear set
25: sun gear 26: planetary gear
27: ring gear
40: Seaming roll unit 41: Seaming roll unit support
42: fastening means 43: supporting portion connecting shaft insertion portion
44: Bearing 45: Seaming roll
46: lower plate 47: bolt
48: through groove 49: fastening groove
50: engaging hole 51: engaging projection
60: Seaming Chuck 61: Seaming Chuck Pulley
62: seaming chuck rotation shaft 70: can body
80: lifter 90: upper cover
100: Belt
131, 231: first and second cam rollers
132, 232: first and second cam roller supporting portions
133, and 233: first and second support portions
134, and 234: first and second elastic members
135, and 235: first and second elastic body supporting portions
140, 240: first and second seaming roll units

Claims (7)

A can sealer for sealing and sealing a can body and a can lid,
A stepping motor driven by power supply;
A driving pulley coupled to a shaft of the stepping motor and rotated when the stepping motor rotates;
A reduction pulley having a diameter larger than that of the drive pulley and connected to the drive pulley by a belt to receive a drive force;
A reduction gear set connected to an axis of the reduction pulley and reducing the rotation speed by a combination of gears;
A cam connected to the reduction gear set and rotating according to the rotation of the reduction gear set, the cam having an eccentric surface having an outer circumferential surface with a different distance from the center to the outer circumferential surface;
A cam roller that contacts the outer circumferential surface of the cam and rolls along the outer circumferential surface of the cam when the cam rotates;
A seaming roll unit connected to the cam roller and moving inward or outward according to the movement of the cam roller to press the rim of the can lid while rotating to wrap the rim of the can lid along the outer circumferential direction of the can body;
A seaming chuck pulley receiving a driving force from the deceleration pulley and having the same rotational speed as the driving pulley;
A seaming chuck connected to the seaming chuck pulley for rotating the can lid in accordance with the rotation of the seaming chuck pulley; And
A lifter for lifting up the assembly with the can lid mounted on the can body and then lifting the can lid and bringing the can lid into close contact with the seaming chuck and rotating according to rotation of the can lid;
≪ / RTI >
The cam for controlling the motion of the seaming roll unit transmits the rotation speed of the stepping motor as it is without reducing the rotation speed to the seaming chuck, and the stepping motor The rotation speed of the canister is reduced.
The method according to claim 1,
The reduction gear set includes:
A sun gear rotating in accordance with rotation of a reduction pulley connected to an axis of the reduction pulley;
An outer ring gear; And
And a plurality of planetary gears disposed between the sun gear and the ring gear and meshed with the sun gear and the ring gear,
Wherein the rotation speed of the reduction pulley is reduced as it passes through the sun gear, the planetary gear and the ring gear.
The method according to claim 1,
Wherein the cam has a double cam structure having upper and lower eccentric curved surfaces different from each other.
The method according to claim 1,
Wherein the driving pulley, the reduction pulley, and the seaming chuck pulley include timing pulleys having pitches formed at regular intervals on the outer circumferential surface thereof, wherein the driving pulleys, the reduction pulleys, and the seaming chuck pulleys are driven by a timing belt Sequentially connected.
The method according to claim 1,
Wherein the seaming roll unit includes a first seaming roll unit and a second seaming roll unit, and the edge portion of the can body and the lid of the can is primarily bent by the first seaming roll unit so that the rim of the can body And the can body and the lid of the can are sealed by secondarily bending the bent portion by the second seaming roll unit.
The method according to claim 1,
The seaming roll unit includes:
A fastening means having a fastening protrusion formed on the upper end of the outer peripheral surface as a cylindrical shape;
And a coupling hole formed in the inner surface of the coupling hole to allow the coupling means to pass therethrough and to allow the coupling means to be rotated by a predetermined angle after passing through the coupling means. And
A seaming roll rotatably coupled to the fastening means;
/ RTI >
The method according to claim 1,
Wherein the cam roller support portion for supporting the cam roller is connected via a supporting portion connecting shaft to a seaming roll unit supporting portion for supporting the seaming roll unit, and when the cam roller supporting portion moves, Wherein the unit support portion also moves and includes an elastic body such that the cam roller can continuously contact the outer circumferential surface of the cam even when the cam rotates.

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