KR20210017453A - Can seaming apparatus - Google Patents

Abstract

The present invention provides a can seaming apparatus comprising: a support plate; a support beam connected to the support plate to be connected to a fixing plate; a seaming unit connected to a lifting upper plate to seal a can lid on a can body; a lifting unit to vertically move the seaming unit back and forth; a can storage unit connected to the support plate and allowing a can body to be mounted thereon; and a control unit to control to stop a descent of the lifting unit and operate the seaming unit if a detection signal is received from a stop detection sensor positioned underneath the can storage unit. According to the present invention, a can placed on the can storage unit can be sealed regardless of the height of the can, and the height of the can storage unit does not have to be adjusted when changing cans in accordance with an amount required by a consumer. Therefore, the efficiency of can seaming work can be increased.

Description

Can seaming device {CAN SEAMING APPARATUS}

The present invention relates to a can seaming apparatus, and more particularly, to a can seaming apparatus for sealing the can lid to the can body in a state where the can lid is placed on the can body.

In the process of manufacturing cans used as packaging containers for various beverages, a technology of sealing the can to block the movement of air inside and outside the can after filling the body of the can is the most important.

For the manufacture of cans, first, a plate that is easily deformable is cut into a square of a predetermined size, and then a side seam is welded by rolling it into a circular shape to form a cylindrical body (that is, a can with open top and bottom). . Thereafter, the opening of the body is covered with a can lid, and the can is sealed by winding and compressing the opening rim of the body and the rim of the can lid. In this way, the operation of compressing the can lid by winding it around the edge of the can body is referred to as can seaming.

In the can seaming device, when the can on which the lid is placed is raised by the lift means, a seaming chuck abuts the upper surface of the can lid, and the can is fixed between the lift means and the seaming chuck. Thereafter, while the seaming chuck rotates rapidly to rotate the fixed can, a seaming roll approaches the seaming chuck in a horizontal motion, and applies pressure while pushing the edge of the can to seal the can.

This can seaming device is configured to provide the rotational force generated by the motor to the seaming chuck through a belt, and the volume and weight of the configuration are significant and are mainly used in factories. However, as the supply and demand of craft beer has increased and the sales of nitrogen coffee and Dutch coffee have increased as the supply and demand of craft beer has increased due to the recent relaxation of the liquor law, a small can seaming device for sealing cans directly at home or in private workplaces. The development of is required.

As a prior art related to the present invention, the automatic setting seaming machine of Korean Laid-Open Patent Publication No. 10-2019-0087902 is disclosed. In the prior art, a plurality of through holes are formed on one side of the height adjustment unit according to the height of the can to be seamed to adjust the height, and then a fixing pin is inserted into the through hole to be fixed. That is, in the prior art, the seaming head is inconvenient to be adjusted each time according to the height of the can while the seaming head is fixed.

Therefore, in seaming cans having various can heights according to various capacities, it is necessary to develop a new can seaming device that does not require adjusting the height of the can base according to the can height each time.

1. Korean Patent Publication No. 10-2019-0087902 (2019.07.25)

The present invention was conceived to solve the above-described problems, and an object of the present invention is to provide a can seaming device capable of sealing a lid while the cans are seated in the can storage unit regardless of the height of various cans. .

In order to solve the above problem, the can seaming device according to an embodiment of the present invention includes a support plate, a support beam connected to the support plate and connected to a fixed plate, a seaming part connected to the lifting top plate and sealing the can lid to the can body, the seaming. When a detection signal is received from the can storage unit for reciprocating the unit up and down, the can storage unit connected to the base plate and the can body is seated, and the stop sensor located under the can storage unit, the lowering of the elevator unit is stopped and the seaming unit operates. It may include a control unit to control.

According to an aspect of an embodiment of the present invention, it further comprises a limit switch connected to the support beam through the support bracket, the control unit, when receiving a detection signal from the limit switch, determines that the lifting and lowering plate is out of the allowed range, and , Characterized in that the control to stop the operation of the lifting motor.

According to one aspect of an embodiment of the present invention, the can receiving unit includes a housing, a support body for inserting and supporting a can support on which the can body is placed, and a roller bearing positioned between the support body and the outer housing of the can, and the can support The sensor shaft is inserted into an insertion groove and a coil insertion groove into which the coil spring is inserted, and one end of the sensor shaft passes through the coil spring inserted into the coil insertion groove and is inserted into the insertion groove to be connected to the can base. It features.

According to the present invention as described above, it is possible to seal the can placed in the can storage unit regardless of the height of the can, so when changing the can according to the amount requested by the consumer, it is not necessary to adjust the height of the can storage unit. It can increase the efficiency of work.

That is, irrespective of the cans having various heights according to the capacity, the cans can be seamed immediately after placing the cans in the storage unit, so the operator does not need to change the height of the can storage unit according to the can height. You can do it efficiently.

1A to 1C are perspective and side views of a can seaming apparatus according to an embodiment of the present invention.
2 is a view showing a seaming unit of the can seaming apparatus according to an embodiment of the present invention.
3A and 3B are views illustrating a can receiving unit according to an embodiment of the present invention.
4 is a block diagram for explaining the operation of the can seaming apparatus according to an embodiment of the present invention.

The detailed description below is merely an example and is merely illustrating an embodiment of the present invention. Further, the principles and concepts of the present invention are provided for the purpose of being most useful and easy to explain.

Accordingly, it is not intended to provide a detailed structure more than necessary for a basic understanding of the present invention, as well as various forms that can be implemented in the substance of the present invention by a person of ordinary skill in the art through the drawings.

Hereinafter, the configuration and operation of a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1A to 1C are perspective and side views of a can seaming apparatus according to an embodiment of the present invention.

1A to 1C, the can seaming device 1000 includes a support plate 1, a support beam 5 connected to the support plate and connected to the fixing plate 102, and a can body. A seaming part 200 for sealing the lid of the can, an elevating part 100 for reciprocating the seaming part 200 up and down, and a can storage part 300 connected to the base plate 1 and on which the can body is seated. ) And when a detection signal is received from the stop detection sensor 400 located under the can receiving unit 300, the control unit 500 stops descending of the elevating unit and controls the seaming unit to operate. The stop detection sensor 400 may be an optical sensor that includes a light-receiving unit and a light-emitting unit, and outputs a detection signal to a control unit when an optical path between the light-receiving unit and the light-emitting unit is blocked. Here, the stop detection sensor 400 has been described as an optical sensor, but is not limited thereto, and includes a proximity sensor, a distance sensor, a push sensor, a limit switch, etc. that can detect the falling of the sensor shaft in the can receiving part or the falling of the can pedestal. It can be made of various sensors.

The elevating upper plate 103 may be connected to a seaming unit 200 for sealing a lid placed on the can body seated in the can receiving unit 300, and the seaming unit 200 will be described in detail in FIG. 2. The sealing motor 210 is connected to the lower part of the lifting upper plate 103, and the fixed plate 102 and the lifting lower plate 101 have an opening for accommodating the sealing motor 210, so that the space in which the sealing motor 210 moves is formed. Can be formed.

The support plate 1 is connected to the four support beams 5, and the support beam 5 is connected to the fixing plate 102 through a connection block 6, so that the fixing plate 102 can be fixed to the support beam 5. have. The elevating side plate 104 connects the elevating upper plate 103 and the elevating lower plate 101, so that when the elevating lower plate 101 is moved downward by the elevating motor, the seaming part 200 connected to the elevating upper plate 103 is The can lid may be sealed to the can body by moving to the upper part of the can placed in the can receiving part 300.

The elevating part 100 includes an elevating motor 120 connected to the base plate 1 through an elevating motor bracket 125, a first elevating gear 121 connected to the elevating motor shaft, and the first elevating gear 131 The second elevating gear 131 connected to, the screw nut 130 connected to the elevating lower plate 101 and the screw nut 130 are inserted and connected, and one end is connected to the second elevating gear and the base plate 1, and the other end It may include a screw 135 connected to the fixing plate 102. The elevating unit 100 may move the elevating lower plate 101 and the elevating upper plate 103 connected through the elevating side plate 104 by rotating the screw 135 according to the rotation of the elevating motor 120. Therefore, the controller 500 can control the lifting motor 120 to move the seaming part 200 located on the lifting top plate 103 downward so that the can lid located in the can receiving part 300 is inserted into the central head have. The lifting part 100 passes through the linear bushing 115 connected to the lifting lower plate 101 and the linear bushing 115, and one end is connected to the base plate 1 and the other end is connected to the fixed plate 102. Including 110, the guide bar 110 can guide when the elevating lower plate 101 and the elevating upper plate 103 move up and down according to the rotation of the screw 135.

Referring to FIG. 1C, limit switches 410 and 420 may be connected to the support beam 5 through a support bracket 7. The limit switches 410 and 420 may transmit a sensing signal generated by contacting the contact member 8 connected to the lower plate 101 and the upper and lower plates 101 to the control unit 500. The limit switches 410 and 420 may include a first limit switch 410 positioned at a maximum height that can be allowed when the lifting and lowering plate 101 moves, and a second limit switch 420 positioned at a minimum height. When the detection signal is received from the first and second limit switches 410 and 420, the controller 500 determines that the lift and lower plate 101 is out of the permitted range, and stops the operation of the lift motor 120 to prevent malfunction. can do.

2 is a view showing a seaming unit of the can seaming apparatus according to an embodiment of the present invention.

As shown in FIG. 2, the lifting upper plate 103 includes a first sealing gear 211 connected to the sealing motor 210, a second sealing gear 212 connected to the first sealing gear 211, and 2 A third sealing gear 213 connected to the sealing gear may be supported on the elevating upper plate 103. The seaming part 200 is connected to the axis of the second sealing gear 212 and rotates by connecting the cam 240 and the axis of the third sealing gear 213 to rotate, and the center supporting the can lid placed on the can body It includes a side head 230 that is supported by the head 220 and the central head 220 and is in close contact with the edge of the rotating can lid by the rotation of the cam 240 and applies pressure to seal the can lid to the can body. I can.

The side head 230 is connected to one end of the link 231 connected through the connection body 10 and the central axis 233 connected to the lifting top plate 103, and the other end of the link through a connection pin 234 It may be connected to the ball bearing 235 rotating in contact with the outer surface of the cam 240. Therefore, as the cam 240 rotates according to the rotation of the second sealing gear 212, the ball bearing 235 contacts the side surface of the cam 240 to center the side head 230 connected to the end of the link 231 By moving toward the head 220, pressure may be applied to seal the can lid on the can body. Although the side head 230 is not shown, a spring may be connected to return to the initial state after sealing the can lid by applying pressure to the can body. For example, one end of the spring may be connected to the side ed and the other end of the spring may be connected to a fixed support beam.

3A and 3B are diagrams illustrating a can receiving unit according to an exemplary embodiment of the present invention, and FIG. 4 is a block diagram illustrating an operation of a can seaming apparatus according to an exemplary embodiment of the present invention.

3A and 3B, the can receiving unit 300 includes a housing 340, a support body 320 for supporting the can holder 310 on which the can body is placed, and the support body 320 and the can. It may include roller bearings 330 and 331 positioned between the outer housing 340. The can located between the can holder 310 and the central head 220 of the can storage unit 300 may be rotated simultaneously according to the rotation of the central head 220 in the housing 340 by roller bearings 330 and 331 . The can pedestal 310 may have an insertion groove 311 into which the sensor shaft 350 is inserted and a coil insertion groove 312 into which a coil spring is inserted. One end of the sensor shaft 350 may pass through the coil spring inserted into the coil insertion groove 312 and be inserted into the insertion groove 311 to be connected to the can pedestal 310. Here, the coil spring must have an elastic force such that the can lid is completely in close contact with the can body by applying pressure to the can located between the can base and the center head according to the lowering of the central head. For example, if the elastic force is weaker than the standard, sealing is performed according to rotation while the can lid is not completely in close contact with the can body, so sealing failure may occur, and liquid inside the can may leak out. In addition, when the elastic force is stronger than the reference, the can holder may not descend due to the lowering of the sensor shaft to the central head before reaching the optical sensor path, causing the can to burst.

Referring to FIG. 4, when the operator places the can to be sealed on the can holder 310 and then operates the operation switch 501, the controller 500 operates the lifting motor 120 to operate the central head 220 of the seaming unit. ) Can be controlled to descend to the top of the can. The can lid on the upper can of the can placed on the can pedestal 310 may be pressed down while being inserted into the lower central head according to the operation of the lifting unit. At this time, the can body and the can lid are in close contact with each other by the elastic force of the coil spring 315 inserted into the can holder. When the central head continuously presses the can down according to the operation of the lifting unit in close contact, the other end of the sensor shaft 350 in the can pedestal 310 blocks the optical path of the optical sensor 400 The sensor 400 outputs a detection signal to the control unit.

The control unit 500 receiving a detection signal from the optical sensor 400 by the sensor shaft 350 controls the operation of the lifting motor 120 to stop, so that the central head 220 of the seaming unit 200 is further lowered. Don't do it. Subsequently, the control unit 500 continuously operates the sealing motor 210 to rotate the upper part of the can and the inserted central head 220 and at the same time control the sealing head next to the central head to seal the can lid to the can body. can do.

The CAN seaming device 1000 may display status information according to the current operating state through the display unit 502, and the control unit 500 is formed of a microcontroller (MCU), and according to a program stored in the memory 503 The overall operation of the can seaming device 1000 may be controlled.

In the above, the present invention has been described in detail through exemplary embodiments, but those of ordinary skill in the art to which the present invention pertains have found that various modifications can be made to the above-described embodiments without departing from the scope of the present invention. I will understand.

Therefore, the scope of the present invention is limited to the described embodiments and should not be determined, and should not be determined by the claims to be described later, but also by those equivalents to the claims.

1: base plate 5: support beam
6: connection block 7: support bracket
10: connecting body 100: elevating part
101: elevating lower plate 102: fixed plate
103: elevating top plate 104: elevating side plate
110: guide bar 115: linear bushing
120: elevating motor 125: elevating motor bracket
135: screw 200: seaming portion
210: sealing motor 220: center head
230: side head 231: link
233: central axis 234: connection pin
235: ball bearing 240: cam
300: can storage unit 310: can stand
311: insertion groove 312: coil insertion groove
315: coil spring 320: support body
330, 331: roller bearing 340: housing
350: shaft 400: stop detection sensor, light sensor
410, 420: limit switch 500: control unit
501: operation switch 502: display unit
503: memory 1000: can seaming device

Claims (3)

Base plate (1),
A support beam 5 connected to the base plate and connected to the fixing plate 102,
A seaming part 200 connected to the lifting upper plate 103 and for sealing the can lid on the can body,
An elevating part 100 for reciprocating the seaming part 200 up and down,
The can storage unit 300 connected to the base plate 1 and on which the can body is seated, and
A can seaming apparatus comprising a control unit 500 that stops descending of the elevating unit and controls the seaming unit to operate when a detection signal is received from the stop sensor located under the can receiving unit 300.
The method of claim 1,
It further comprises limit switches (410,420) connected to the support beam (5) through the support bracket (7),
The control unit, when receiving a detection signal from the limit switches (410, 420), determines that the lower plate 101 is out of the allowed range, and controls to stop the operation of the lifting motor 120 can seaming device.
The method of claim 2,
The can storage unit 300
Housing 340,
It includes a support body 320 for inserting and supporting the can base 310 on which the can body is placed, and roller bearings 330 and 331 positioned between the support body 320 and the outer housing 340 of the can,
The can pedestal 310 has an insertion groove 311 into which the sensor shaft 350 is inserted and a coil insertion groove 312 into which a coil spring is inserted, and one end of the sensor shaft 350 is a coil insertion groove ( A can seaming device, characterized in that it is inserted into the insertion groove 311 through the coil spring inserted in 312) and connected to the can pedestal 310.

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