JP3027575U - Packaging equipment - Google Patents

Abstract

(57) [Summary] [Structure] The power of the first motor 10 is held by the chain 15, and the film feeding roll 13 and the chain 21 are used to convey the belt conveyor 22 and the pair of center seal rolls 28.
, And the strip-shaped film wound around the roll body 16 is fed out by the delivery roll 13, the film is deformed into a groove shape by the pair of side plates 30, and then both side edges of the groove-shaped film are formed by a pair of center seal rolls. At 28, they are welded in a palm shape. When the registration marks printed on the film 17 at equal intervals are detected by the reading sensor 45 and input to the controller 47, the controller 47 stops the first motor 10 and simultaneously drives the second motor 42 to drive the pair of seal bars. Three
Cross seal the tube film with 6,37. [Effect] Since the motor start / stop control is performed at the pitch of the registration mark printed on the film according to the size of the packaged object, the start / stop timing of the motor is adjusted every time the size of the packaged object is changed. You don't have to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention intermittently transfers a strip-shaped film on the upper surface of which a large number of articles to be packaged are placed at equal intervals in a column, and after rolling the strip-shaped film into a tubular shape around each article to be packaged, the tubular film is removed. The present invention relates to a wrapping device that clamps and seals between objects to be wrapped.

[0002]

[Prior art]

 The seal bar is operated by the second motor to overheat-seal the film only while the first motor for transferring the strip-shaped film on which the object to be packaged is intermittently stopped is operated. In the conventional wrapping device that rotates alternately, the blade cutting plate 4 is attached to the shaft 3 of the first motor 1 that drives the film transfer roll 2 as shown in FIG. The rotation angle is input to the controller 6, and the first motor 1 for transferring the film and the second motor 7 for operating the seal bar are alternately moved by a command signal from the controller 6.

[0003]

[Issues to be solved by the device]

 In the above device, when the length of the packaged object is changed, it is necessary to give information to the controller 6 from the input device 8 to change the intermittent operation timing of the first motor 1, which is troublesome, I will forget again and win. Therefore, the present invention simplifies this point.

[0004]

[Means for Solving the Problems]

 For the above-mentioned purpose, the present invention provides a film feeding roll 13, a belt conveyor 22 on which a belt-shaped film 17 fed out through the roll is placed and rotated, and both sides of the belt-shaped film 17 above the belt conveyor. A first motor 10 that integrally drives a pair of center seal rolls 27 whose edges are welded together in a palm shape, and a pair of seal bars 35 behind the center seal rolls 27 in the transfer direction of the belt conveyor 22. , And a second motor 42 for operating 36, and connects a mark reading sensor 45 provided on the transfer path of the belt-shaped film 17 and a controller 47, and the mark reading sensor 45 is printed on the belt-shaped film 17. The controller 47 stops the first motor 10 and stops the second motor 4 at the same time with the signal that detects the mark. Drives, after time measured by the timer from the time of driving of the second motor 42, while stopping the second motor 42, configured to re-drive the first motor 10.

[0005]

[Action]

 When the mark reading sensor detects registration marks printed at equal intervals on the strip-shaped film, the mark reading sensor sends a signal to the controller, which stops the first motor for transferring the film and at the same time the sealer. Since the second motor for driving is moved, the film is cross-sealed while the film is stopped.

When the timer notifies the end of the cross-seal time for the film, the second motor is stopped and the first motor is driven symmetrically to transfer the film until the sensor detects the registration mark again.

[0007]

【Example】

 The chain wheel 11 provided on the shaft of the first motor 10 shown in FIG. 1 and the chain wheel 14 provided on the shaft of the film feeding roll 13 supported on the frame 12 are connected by the endless chain 15, so that the first motor The film feeding roll 13 is rotated by the movement of 10, and the film wound around the roll body 16 is fed in the form of a band 17 via the peripheral surface of the film feeding roll 13.

Both ends of the mandrel 18 of the roll body 16 are supported by the slits 19 of the frame 12, and as the film of the roll body 16 is consumed, the roll body 16 descends through the slits 19 to constantly feed the film. Therefore, it is not necessary to control the speed of the roll body corresponding to the change in the peripheral speed of the roll body 16 due to consumption.

Another chain 21 that engages with another chain wheel 20 provided in two stages on the shaft of the first motor 10 includes a front and rear first belt conveyor 22 and a second belt conveyor 23, and the first chain conveyor 22. It engages with a chain wheel 25 provided on a shaft 24 above the belt conveyor, and the shaft 24 is connected via a bevel gear 26 to a pair of center seal rolls 27 and 28 in FIG.

Although each of the first and second belt conveyors 22 and 23 is represented by a flat belt in the drawings, it is also possible to form a plurality of endless cord belts by combining them in parallel.

Further, a pair of side plates 30 are arranged along the upper surface of the first belt conveyor 22 so as to be supported by leg members 31, and the belt-shaped film 17 is guided between these side plates 30 so that the film 17 Is bent in a groove shape, and both side edges 32 of the belt-shaped film 17 are sandwiched between a pair of center sealer rolls 27 and 28 in a palm-shape.

Therefore, the power of the first motor 10 rotates both belt conveyors 22 and 23 and the center seal rolls 27 and 28 to move the film 17. Therefore, when the packaged objects 33 are mounted on the grooved film between the both side plates 30 at the same intervals as the registration marks printed on the film, each packaged object is automatically covered with the tube film. Be seen.

A pair of upper and lower seal bars 35, 36 between the first and second belt conveyors 22, 23 are connected to both ends of a bell crank 38 rotatable about a shaft 37 via links 39, 40. are doing. One end of the bell crank is connected to a crank 43 fixed to the shaft of the second motor 42 via a connecting rod 41. When the crank 43 is rotated by the second motor 42 and the bell crank 38 is swung, the pair of seal bars 35, 36 cross-seal the tube film.

When the phototube 45 and the phototube 46 detect the registration mark printed on the film, the phototube 45 and the phototube 46 send a signal to the controller 47, and the controller 47 stops the first motor 10 at the same time as the second motor by the signal. 42 is driven. The timer 48 connected to the shaft of the second motor measures the elapsed time of the sealing action of the seal bar 35, and when it reaches the set time, it sends an instruction to the controller 47, so that the first motor 10 moves and the second motor moves. 42 stops.

[0015]

【effect】

 In the present invention, the interval between the registration marks on the film naturally changes according to the size of the packaged product, so by detecting the interval between the registration marks with a sensor and controlling the start / stop of the motor, the conventional method is used. There is no need to adjust the start / stop of the motor each time the size of the packaged item is changed.

[Brief description of drawings]

[Figure 1] Side view

FIG. 2 is a partial plan view of the previous figure.

FIG. 3 is an explanatory diagram of a conventional example.

[Explanation of symbols]

10 ... First motor 13 ... Film feeding roll 16 ... Roll body 17 ... Band-shaped film 22 ...
First belt conveyor 35, 36 ... Seal bar 42
… Second motor 46… Mark reading sensor 4
7 ... Controller 48 ... Timer

Claims (2)

[Scope of utility model registration request] 1. A film feeding roll 13, a belt conveyor 22 on which a belt-shaped film 17 fed out via the roll is placed and rotated, and both side edges of the belt-shaped film 17 above the belt conveyor are formed into a palm shape. First motor 10 that integrally drives a pair of center seal rolls 27 welded to each other, and a pair of seal bars 35, 3 behind the center seal roll 27 in the transfer direction of the belt conveyor 22.
And a second motor 42 for operating 6 and connecting a mark reading sensor 45 provided on the transfer path of the belt-shaped film 17 and a controller 47, and the mark reading sensor 45 is a registration mark printed on the belt-shaped film 17. The controller 47 stops the first motor 10 and drives the second motor 42 at the same time with the signal that has detected, and stops the second motor 42 after the time measured by the timer from the time of driving the second motor 42. On the other hand, the first motor 10
A packaging device configured to re-drive the. 2. The roll body 16 formed by winding the strip-shaped film 17 is loaded on the upper surface of the film feeding roll 13 such that both roll axes are parallel to each other.
The packaging device described in.