JP2528735Y2 - High-speed compression packaging machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention is used in the technical field of packing equipment, and particularly relates to a high-speed compression packing machine.

[0002]

2. Description of the Related Art A high-speed compression packaging machine for handling articles to be packaged such as newspapers has conventionally been provided with a compression device for compressing the articles to be packaged from a stacking height to a packaging height suitable for packaging.

[0003] This compression device is usually composed of a first compression device and a second compression device.
After the object to be packaged is compressed from the stacking height in the free state to the packaging height, it is sent to the second compression device together with the film for packaging.

[0004] On the other hand, in the second compression device, the film to be packaged is lifted during the movement from the first compression device, and the film is welded while being compressed again to the packaging height.

[0005]

However, when the transported distance from the first compression device to the second compression device is long, the package to be sent out from the first compression device is largely lifted before entering the second compression device. . To this end, the package
When entering the second compression device, there is a risk of collapse of the load. Also, when the feeding speed of the second compression device is high, the packaged object that has entered the second compression device collapses during transportation, or is suitable for film packaging in the second compression device. From the stopped position. For this reason, increasing the transport speed of the second compression device has been greatly limited.

[0006] Therefore, not only does the efficiency of the packaging work be hindered, but there is a problem that the film is wasted due to insufficient compression, displacement of the stop position, and the like.

In order to solve such a problem, the object to be packaged compressed by the first compression device is sent to the second compression device while maintaining the packaging height (for example, see Japanese Patent Application Laid-Open Publication No. H11-163873). No. 59-1314).

However, in this prior art, the first compression device is constituted by a plate, and the article to be packed, which is compressed to a packaging height by this plate, is fed together with the plate below the second compression device. Then, the operation of lowering the second compression device from the standby position at the rising end and the operation of retracting the plate body toward the original position in the first compression device are started. There are still unsolved problems to reliably control the rising and stopping position of the package.

The present invention provides a high-speed compression packaging machine capable of increasing the compression effect of an object to be packaged in a short time and saving the film with a simple structure in view of such conventional circumstances. It is intended to be.

[0010]

SUMMARY OF THE INVENTION A high-speed compression packaging machine of the present invention compresses an object to be packaged to a packaging height suitable for film packaging and sends it out. A high-speed compression packaging machine comprising: a second compression device configured to compress and re-package the film while conveying the article to be packaged at a high speed, wherein the second compression device includes a first compression device. When the compression operation of the article to be packaged by the device is completed, it is configured to stand by while maintaining a receiving height obtained by adding the floating height before reaching the second compression device with respect to the packaging height. In addition, the apparatus is characterized in that the article to be packaged is conveyed while being compressed until the article is stopped at the optimal packaging position where the article to be packaged can be packed with the shortest film.

[0011]

When the object to be packaged is carried into the first compression device, the object to be packaged is compressed to the packaging height by the first compression device.

On the basis of the packaging height information at this time, the second compressing device calculates a height obtained by adding the floating height of the article to be packaged during transportation until reaching the second compressing device to the packaging height. And then wait for the lowering operation to be performed.

When the object to be packaged is sent out together with the film from the first compression device, the object to be packaged is conveyed while being compressed by the second compression device, and is reliably stopped at the optimal packaging position. Packaging is made.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. Note that the directions in this description are shown in FIG.
In FIG. 5, the right is called the front and the left is called the back.

In the high-speed compression wrapping machine 1 shown in FIG. 1, articles W to be stacked on which newspapers and the like are stacked are compressed to a wrapping height A (see FIG. 3) suitable for film wrapping and sent forward. The apparatus includes a compression device 2 and a second compression device 3 in which the packaged object W received from the first compression device 2 is compressed again to a packaging height A to form a film package.

The first compression device 2 includes a lower conveyor 4 provided at a fixed position, an upper conveyor 5 provided to be able to move up and down with respect to the lower conveyor 4, and a lifting / lowering unit connected to the upper conveyor 5. It includes a lifting / lowering drive means (not shown) including a mechanism, a servomotor and an encoder. The upper conveyor 5 is connected to an upper feed drive unit 6 composed of a servomotor and an encoder, while the lower conveyor 4 is connected to a lower feed drive unit (not shown) such as a motor. With the upper package W sandwiched between the conveyors 4 and 5, the forward drive of the upper feed drive unit 6 and the lower feed drive unit is synchronized, and the package W is fed forward. It is configured as follows.

The second compression device 3 is provided at a fixed position at the same height as the lower conveyor 4 of the first compression device 2, and is provided so as to be able to move up and down with respect to the lower conveyor 7. An upper conveyor 8 and an elevating mechanism (not shown) composed of an elevating mechanism, a servomotor and an encoder connected to the upper conveyor 8. The upper conveyor 8 is connected to an upper feed drive unit 9 including a servomotor and an encoder, while the lower conveyor 7 is connected to a lower feed drive unit (not shown) such as a motor. The upper packaged object W is transferred to each conveyor 7,
In a state sandwiched by 8, the forward feed drive of the upper feed drive means 9 and the lower feed drive means are performed in synchronization with each other, so that the packaged object W is fed forward.

The first compression device 2 and the second compression device 3
Is linked to a central processing unit (not shown). When the article to be packaged W is compressed to the packaging height A by the first compression device 2, the integrated signal of the encoder is used as a packaging height signal by the central processing unit. And is input to the encoder of the second compression device 3 so that the upper conveyor 8 of the second compression device 3
However, the receiving height C, which is the sum of the packaging height A and the lifting height B during transportation, is maintained, and the packaged object W sent from the first compression device 2 can be on standby.

The second compressing device 3 stores the optimum packaging position at which the article to be packaged W can be wrapped with the shortest film in the central processing unit by the integrated signal of the upper feed drive means 9 of the second compressing device 3. As a result, the article to be packaged W can be suddenly stopped at the optimal packaging position.

An upper film roll 11 is placed above the first compression device 2, while a lower film roll 12 is placed below the first compression device 2.

The upper film roll 11 is formed by winding an upper film 13 around a core tube (not shown).
The upper film 13 can be supplied to the upper side of the article to be packaged W entering the second compression device 3 by the upper pinch roller 16 after passing through a and a plurality of guide rollers 15b.

Similarly, the lower film roll 12
The lower film 17 is wound around a core tube (not shown), and is supported by a pair of receiving rollers 18, and is passed by a lower pinch roller 20 via a feed roller 19 a and a plurality of guide rollers 19 b. The lower film 17 can be supplied to the lower side of the article to be packaged W entering the second compression device 3.

For example, a vertical seal S of the upper film 13 and the lower film 17 is provided between the first compression device 2 and the second compression device 3, and an intermediate portion of the vertical seal S is attached to each of the films 13 and 17. Are arranged at intervals in the vertical direction, and the vertical seals S are arranged at intervals of the vertical direction to cut in the width direction of FIG. 1 (the direction perpendicular to the paper surface in FIG. 1). Each is provided so as to be able to move up and down as formed at the intermediate portion of A.

On both sides of the second compression device 3 in the width direction (perpendicular to the plane of FIG. 1), the upper film 13 is provided.
And the lower film 17 are, for example, horizontally sealed (not shown), and an intermediate portion of each horizontal seal is attached to each of the films 13 and 17.
A heat welding cutting mechanism (not shown) for cutting in the longitudinal direction is arranged, and each of the horizontal seals is moved up and down so as to be formed at an intermediate portion of the packaging height A of the article to be packaged W. It is provided movably.

Reference numeral 22 denotes an entry stopper for stopping the package W entering the first compression device 2 at a position suitable for compression without collapse of the load. Is provided so as to be able to advance and retreat with respect to the position where the front surface of the packaged object W is blocked, and operates by a detection signal of a sensor (not shown) arranged in the vicinity of the entrance stopper 22, and each of the conveyors 4 and 5 stops It has been made to be.

Reference numeral 23 denotes a width adjusting stopper for adjusting the width of the article to be packed W which has entered the first compression device 2 and stopped, and adjusts the packing form. Are provided so as to be able to advance and retreat from both sides thereof so as to come into contact with the side surfaces of the packaged object W, respectively, and can be operated by the detection signal of the sensor.

Reference numeral 24 denotes an upper spare film roll which is reciprocally movable between the outside and the outside in the axial direction (in the direction perpendicular to the plane of FIG. 1) while being mounted on the upper film carriage 25. .

Reference numeral 26 denotes a lower spare film roll, which is mounted on a lower film carriage 27 so as to be reciprocally movable between the outside and the outside in the axial direction.

Reference numeral 28 denotes an upper automatic film splicing device, and 29 denotes a lower automatic film splicing device.

Next, the operation of the high-speed compression packaging machine 1 will be described.

The upper film 13 and the lower film 17 are
Preparation for packaging of the article to be packaged W is made in advance in a state where the articles W are connected by one vertical seal S as shown in FIG. 1 by the heat welding and cutting mechanisms 21A and 21B.

First, as shown in FIG. 2, when the articles W stacked at the free height are loaded onto the lower conveyor 4 of the first compression device 2, the articles W are read by sensors ( In response to the detection signal (not shown), the load is adjusted by the approach stopper 22 and the width stopper 23 (see FIG. 1), and the carriage is stopped.

Next, when the object W to be packed is compressed to the packaging height A shown in FIG. 3 by the lowering drive of the upper conveyor 5 of the first compression device 2, the elevation drive means of the first compression device 2 (not shown). ) Is processed by a central processing unit (not shown) as a packaging height signal, and is input to an encoder of lifting / lowering drive means (not shown) of the second compression device 3. The upper conveyor 8 of the second compression device 3 descends to the receiving height C, which is the sum of the packaging height A and the floating height B being conveyed, and stops.

Each of the conveyors 4 of the first compression device 2
5 and the conveyors 7 and 8 of the second compression device 3 are driven, the packaged object W keeps floating as shown in FIG. 17 (see FIG. 1) and enters the rear end of the second compression device 3.

Thereafter, when the first half of the package W enters the second compression device 3, the upper conveyor 8 is again driven downward as shown in FIG. At the same time, it moves forward while being compressed to the packaging height A. When the encoder (not shown) of the upper feed drive means 9 of the second compression device 3 satisfies the integrated value previously stored in the central processing unit (not shown), a command signal of the central processing unit based on this information is obtained. Then, the articles W to be packaged and the films 13 and 17 together with the conveyors 7 and 8 suddenly stop at the optimal packaging position.

On the other hand, the upper conveyor 5 of the first compression device 2
When the feeding operation of the packaged object W is completed, the packaged product W is raised to the original position, and preparation for carrying in the subsequent packaged object W is performed.

Subsequently, each of the films 13 and 17 has a vertical seal S at the rear end by the heat welding cutting mechanisms 21A and 21B shown in FIG. 1 and a double horizontal seal S by other heat welding cutting mechanisms (both not shown). And the packaging of the article to be packaged W is completed.

Then, each conveyor 7, of the second compression device 3,
By the feed drive of 8, the article to be packaged W is carried out forward.

[0039]

[Effect of the Invention] The high-speed compression packaging machine according to the invention has a receiving height obtained by adding the height to the height of the package when the object to be packaged is compressed to the packaging height by the first compression device. , The second compression device can shorten the operation time after receiving the packaged object, thereby shortening the operation time, thereby facilitating the speed of the packaging operation. be able to.

Further, since the article to be packaged is conveyed while being compressed again to the packaging height by the second compression device, it is reliably stopped at the optimal packaging position despite being conveyed at a high speed. . As a result, since the article to be packaged can be packaged with the shortest film, the amount of film used can be reduced.

Furthermore, since the package received in the second compression device is conveyed while being compressed, there is no danger of collapse of the load even if the package is suddenly stopped at the optimal packaging position. Can be easily realized.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of a high-speed compression packaging machine.

FIG. 2 is an operation explanatory diagram of a first compression device and a second compression device.

FIG. 3 is an operation explanatory diagram of a first compression device and a second compression device.

FIG. 4 is an operation explanatory diagram of a first compression device and a second compression device.

FIG. 5 is an operation explanatory diagram of a first compression device and a second compression device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 High-speed compression packaging machine 2 First compression device 3 Second compression device A Packaging height B Floating height C Receiving height W Packaged material

Claims (1)

(57) [Scope of request for utility model registration] While the first compression device for feeding 1. A compressed into packaging height suitable to be packaged film packaging, the packaged articles fed from the first compression device, is transported at a high speed
A re-compressed to a high speed compressor packaging machine comprising a second compression device configured to film packaging, the second compression device, the compression movement of the packaged articles by the first compression device
When the crop is completed, a second compression device is applied to the packaging height.
Receiving height plus the lifting height before reaching
Is configured to wait while
At the optimal packaging position where the packaged object can be packaged with a short film
Until stopped, transport the packaged goods while compressing
A high-speed compression packaging machine characterized by being constituted .