JPS6294518A - Packer for slender plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a packaging device suitable for packaging green onions, chives, and other slender plants. This invention relates to a packaging device that supplies an elongated plant between finger claws running in the same direction at a predetermined interval, and then inserts the elongated plant into an open film to package it.

(Prior art) Conventionally, a platform for packaging long green onions, etc. using a horizontal pillow packaging machine is equipped with a pair of green onions, which are bundled together and whose roots are positioned backward in the direction of travel, and whose central parts are slightly separated. The rear end of the root of the long leek is fed onto the cross-section shaped conveyance guide plate, connected to a pair of endless chains disposed on both sides of this guide plate, and is connected to the rear end of the root of the long leek by a finger claw that projects upward from the center of both guide plates. The green onions were pushed forward and inserted into a bag making machine from the front end of the green onion leaves to be packaged.

The reason why the roots were positioned backward in the direction of travel is that the finger claws push the roots from behind to set the feeding positions for each package of green onions at predetermined intervals. If the latch is placed at the rear, the tip will be soft and may bend when being pushed from behind by the finger claw, damaging the packaged item.Also, the eastern tip may be open and a portion of it may be bent behind the finger claw. If it protrudes, it will get caught in the sealing part during the subsequent horizontal sealing in packaging, making it impossible to package correctly and causing defective packaging. Therefore, it was necessary to press the root part at the rear in the direction of travel, but in this case, when inserting the green onion into the bag-making machine, the eastern part was open, so it hit the entrance end of the bag-making machine and fell into the bag-making machine. There were cases where the product was not inserted correctly, resulting in defective packaging.

(Problems to be solved by the invention) In order to solve the above-mentioned problems, the applicant has
Patent Application No. 60-134380 was previously filed, and in this invention, one of the conveying means is ! ! 2 Provide acceleration means only parallel to the feeder
3. There was no problem when the slender plants were supplied bundled with strings or rubber bands, or when all of the slender plants were substantially straight. However, if the elongated plant is, for example, a green onion, and some of its stems are irregularly curved, there is a problem, and this is noticeable at both ends of the conveying surface. In other words, since the long leek curved at both ends of the conveying surface comes into contact with the side wall surface of the guide frame, it is decelerated by the frictional resistance between the long leek and the side wall surface, and not only the long leek but also all other ring leek parts are slowed down. This is particularly problematic when the long onion is curved in the vertical direction, as the area of contact with the acceleration means is reduced.

Therefore, the present invention has been made to solve the above-mentioned problems, and its purpose is to reliably accelerate slender plants such as curved long onions, maintain the correct distance from the roots, and open the plants. An object of the present invention is to provide a packaging device that can be inserted into a film that has been removed, thereby eliminating packaging defects and acceleration defects.

(Means for Solving the Problems) In order to achieve the above object, the packaging device for slender plants according to the present invention includes a transport means for transporting a III-long plant as a packaged object, and a transport means for transporting a III-long plant as an object to be packaged. A plurality of finger claws that run at predetermined intervals, a bag-shaped opening forming means for the packaging film disposed on the front end side in the traveling direction of the conveying means, and a bag-shaped opening forming means in the forward direction of the traveling direction of the bag-shaped opening forming means. The device consists of means for vertically and horizontally sealing the rolled packaging film, and a cutter means for cutting the horizontally sealed portion of the packaging film, and the conveyance speed of the elongated plant in the conveyance means is lower than the moving speed of the fingers. An accelerating means is provided parallel to the conveying surface of the conveying means so as to relatively accelerate the conveying means, and on both sides of the accelerating means, bells 1 to 1 are arranged upright with respect to the conveying surface. A pair of endless bells 1 that move in the same direction as the traveling direction and slightly faster than the conveyance speed.
An accelerating auxiliary means consisting of ~ is provided, and the accelerating means increases the speed so that the front end of the elongated plant is pressed against the fingers in front of it, and also comes into contact with the pair of endless belts at both ends of the conveying surface. The speed of the elongated plant is increased by the acceleration assisting means, and the elongated plant is pressed against the finger in front of the plant.

(Embodiments) Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

The apparatus of the present invention is an improvement on the known packaging apparatus, and the main part thereof is an improvement in the part where the articles to be packaged are inserted into the bag making machine while maintaining a predetermined interval.

Fig. 1 shows the above-mentioned main parts of the present invention, and 1 indicates an endless chain, and this chain 1 is provided in pairs on the left and right, and each chain is engaged with the front and rear sprockets h2-2 in the direction of the arrow. It is designed to run. As shown in FIG. 2, rotatable rollers 3 are provided across the pair of left and right chains 1-1 to form a conveying surface. The rotatable roller 3 consists of a shaft part 3a and a roller part 3b, and its structure is such that the shaft part 3a and the roller part 3b are integrally formed, and the shaft part 3a rotates with the chain 1. They may be connected freely, or the shaft portion 3a may be fixed to the chain 1 and the roller portion 3b may be connected to this shaft portion 3a.
It may also be possible to rotate it with respect to. The rotatable rollers 3 are arranged in groups at predetermined intervals, and finger claws 4 project upward between the groups of rotatable rollers 3 and are attached to the chain 1. The intervals between these finger claws 4-4 are relatively large, and a long slender plant 5 such as a green onion to be packaged is placed between these finger claws 4-4, placed on the rotatable roller 3, and conveyed. It has become. In order to facilitate the work of inserting the elongated plant 5 between the finger claws 4-4, the interval between the finger claws 4-4 is sufficiently longer than the length of the elongated plant 5. In order to prevent the elongated plant 5 that is the object to be packaged from spreading in one direction left and right on the rotatable roller 3, a guide frame 6-6 in a horizontal shape is separated upward from the rotatable roller 3. are provided on the left and right sides of the roller 3.

In the above-mentioned apparatus of the present invention, first, an accelerating means A is provided parallel to the conveying surface formed by the rotatable roller 3. Of course, this acceleration means is provided with a pair of left and right guide rails 7 at the lower part in front of the chain 1-1 in the running direction, and is attached to the guide rails 7 as the chain 1-1 runs.
The lower surface of the upper rotatable roller 3 is configured to come into pressure contact with the upper surface of the guide rail 7-7. In this way, the lower surface of the rotatable roller 3 is connected to the guide rail 7-7.
When the roller 3 contacts the guide rail 7-7, the frictional resistance therebetween causes the rotatable roller 3 in contact with the guide rail 7-7 to rotate in the same direction as the running direction of the chain 1-1, as shown in FIG.

Further, in the present invention, acceleration assisting means Btfi are provided on both sides of the acceleration means A, as shown in FIG.

That is, in this acceleration assisting means B, the drive roller 8-8, which has a rotating shaft extending in a direction perpendicular to the conveying surface,
A first endless belt 9- is provided on both sides of the conveyance path with a guide rail 7-7 sandwiched therebetween in the longitudinal direction, and a pair of driving rollers 8-8 on the left and right sides thereof
9 are arranged. The first endless bell 1-0-9 is disposed above the rotatable roller 3, facing each other and parallel to the conveying direction, so that its belt surface stands up against the conveying surface. . Further, the inner belt surface 9a-9a of the first endless belt 9-9 is positioned substantially on the same plane as the inner wall surface 6a-6a of the guide frame 6-6 behind it. Therefore, by rotating the drive roller 8-8 in the direction shown by the arrow, the inner belt surface 9a- of the first endless belt 9-9 is rotated.
9a moves in the same direction as the conveyance direction of the elongated plant 5, slightly faster than the conveyance speed.

On the other hand, at the front end of the chain 1-1, there is a bag making machine 1 adjacent to the front end of the chain 1-1.
o is installed. This bag-making machine 10 is generally used in a known horizontal pillow packaging machine, and is shaped like a bag by folding a packaging film 11 fed from below and having both ends meet upward. That is. A second endless belt 12 is provided at the entrance of the bag making machine 10, and as will be described later, the eastern part of the elongated plant 5, which is the object to be packaged, extends smoothly into the bag making machine 1o. This is to guide the presser foot so that it can be pressed. A vertical sealing device 13 for vertically sealing the upper end of the packaging film 11 that is joined together in the shape of palms together is provided at the bottom of the bag making device 1o.
Although not shown, a known horizontal seal cutting device for horizontal pillow packaging machines is provided in front of the packaging machine.

As described above, in the above embodiment of the present invention, the rotatable roller 3 and the guide rail 7 are used as means for pressing the elongated plant 5 against the finger claw 4 in front of it, but various other methods may be adopted. I can do it. As an example, an endless belt is provided in place of the guide rail 7 in the above embodiment, the upper surface of this endless belt is brought into contact with the lower surface of the rotatable roller 3, and this endless belt is moved in the opposite direction to the running of the chain 1-1. It may be driven to Alternatively, an endless belt is installed at the upper end of the rotatable roller 3, the lower surface of this belt is brought into contact with the upper end surface of the rotatable roller 3, and this belt is driven in the same direction as the chain runs. It's okay. Alternatively, the guide rail may be abolished, and an endless belt may be provided above the rotatable roller 3, so that the lower surface of the endless belt comes into contact with the upper surface of the elongated plant 5 that has been transported.
While pressing this slender plant against the rotatable roller 3, the rotatable roller 3 may be rotated by its frictional force, thereby pressing the slender plant against the finger claw 4 in front of it. Furthermore, the rotatable roller 3 and the guide rail 7 are eliminated, and a belt conveyor that moves slightly faster than the pair of endless chains 1-1 is provided between the pair of endless chains 1-1, so that the slender plants placed on the belt conveyor are transferred between the endless chains. It may also be pressed by the finger claws 4 provided across. In the illustrated embodiment, a rotatable roller 3 is provided between the finger claws 4-4, but it is not necessary to provide such a large number of rotatable rollers 3. Some of them may be replaced with flat plates, or the number may be reduced. In short, the rotatable roller 3 is the guide rail 7
When rotated by -7, it is sufficient if the elongated plant placed thereon is moved forward so as to come into contact with the front finger claw.

(Function) Now, in order to package slender plants using the packaging device for slender plants configured as described above, first, when putting the slender plants 5 to be packaged between the finger claws 4-4 of the conveying chain 1, The root portion 5a is positioned at the front in the direction of travel.

As a result, the elongated patterned object 5 is placed on the rotatable roller 3 disposed between the chains 1-1, and is conveyed forward at an intermediate position away from the front and rear finger claws 4-4. When the chain 1-1 travels forward in this manner and comes to the position of the guide rail 7-7, the rotatable roller 3 carrying the elongated plant 5 rides on the guide rail 7-7. At this time, due to the frictional resistance between the rotatable roller 3 and the guide rail as the chain 1-1 runs,
It rotates forward in the direction of travel as shown by the arrow in FIG.

As a result, the elongated plant 5 on the roller moves forward with respect to the running chain 1-1, and its root tip comes into contact with the finger claw 4 in front. At this time, the elongated plant 5 that comes into contact with the first endless belt 8-8 at both ends of the rotatable roller 3 is further accelerated by the first endless belt 8-8, which is an acceleration assisting means, and moves forward. It becomes easier to grow and ensures long and slender plants 5
The tip of the root comes into contact with the front finger claw 4. In particular, even if the elongated plant 5 is curved and the contact area with the rotatable roller 3 is small and sufficient acceleration force cannot be obtained from the rotatable roller 3, it will not contact the first endless belt 8-8. If so, this Endless Bell 1-〇-
Since the speed is increased by 8, it moves forward reliably. In this way, the elongated plants 5 that are sequentially fed into the bag making machine 10 by the transport chain 1-1 are maintained in the correct position with their root tips in contact with the finger claws 4 in front, maintaining a predetermined distance. has been done. Then, the elongated plant 5 enters the bag making machine 10 from the root part ().
Since the second endless belt 12 is provided above, if the eastern part thereof protrudes upward, it is pushed down to make it easier to enter the bag making machine.

The slender plants 5 that have entered the bag making machine 10 in this manner are then moved forward together with the packaging film 11 while maintaining the correct position at the above-mentioned predetermined intervals, and are sealed at the upper end by a vertical sealing device in a known manner. The edges are vertically sealed and then
The package is laterally sealed and cut to obtain an elongated plant package entirely covered with the film 11.

(Effects) As described above, in the packaging device for slender plants according to the present invention, a means for simply accelerating the transport speed of the slender plants relative to the moving speed of the finger claws is provided, so that the packaging device of the bag making machine, etc. Since the front end of the elongated plant can be pressed against the front finger claw at the rear of the shaped opening forming means in the traveling direction, the structure can be simplified and the operation can be ensured.

Furthermore, on both sides of the acceleration means, acceleration auxiliary means consisting of a pair of endless belts whose belt surfaces are arranged upright with respect to the conveying surface and which move slightly faster than the conveying speed in the same direction as the traveling direction of the conveying means are provided. Even if the elongated plant curved in the vertical direction is located at both ends of the conveying surface and the contact surface with the accelerating means is small, it is not possible to obtain sufficient acceleration force from the accelerating means. The speed is increased by the accelerating auxiliary means consisting of the endless belt that comes into contact with it, and it can move forward reliably and come into contact with the front finger pawl 4, making the operation more reliable. can be played.

[Brief explanation of drawings]

FIG. 1 is a side view showing the main parts of a device according to a preferred embodiment of the present invention, FIG. 2 is a partial sectional view of the main parts of the device, and FIG. 3 is an enlarged side view of the chain conveying means shown in FIG. 1. 4 are perspective views showing the main parts of the above device. 1... Endless chain 3... Rotatable roller 4... Finger claw 5... Elongated plant 7.
・Guide rail

Claims (1)

[Claims] (1) A means of transporting a slender plant as an object to be packaged;
a plurality of finger claws running at predetermined intervals in the same direction as the conveying means; a bag-shaped opening forming means for a packaging film disposed on the front end side in the traveling direction of the conveying means; and the bag-shaped opening forming means. In a packaging device comprising vertical sealing and horizontal sealing means for the packaging film provided at the front in the traveling direction of the packaging film, and a cutter means for cutting the horizontal seal portion of the packaging film, the conveyance speed of the elongated plant in the conveyance means Accelerating means is provided parallel to the conveying surface of the conveying means so as to accelerate relative to the moving speed of the fingers, and belt surfaces are arranged to stand up with respect to the conveying surface on both sides of the accelerating means. At the same time, an acceleration auxiliary means consisting of a pair of endless belts moving in the same direction as the traveling direction of the conveying means and slightly faster than the conveying speed is provided, and the speed is increased by the accelerating means, and the front end of the elongated plant is moved to the finger in front of it. At the same time, the elongated plant that is in contact with the pair of endless belts at both ends of the conveying surface is accelerated by the acceleration assisting means and is pressed against the fingers in front of it. A packaging device for long and slender plants.