JPH04115106U - Packaging machine unloading device - Google Patents

Abstract

(57) [Summary] [Purpose] The object of the present invention is to provide a delivery device for a packaging machine that is equipped with a transfer conveyor that intersects with a delivery belt and is capable of preventing film end pieces from becoming entangled. [Structure] A carry-out belt 15 that sends out the package 3a with the film 7 folded therein by the film folding device E to the carry-out side;
A transfer conveyor 16 is provided at a location lower than the carry-out belt 15 so as to transfer the carry-out belt in a direction crossing the carry-out belt 15 on the carry-out side of the carry-out belt 15; Export belt installed at approximately the same height
By providing the delivery roller 20 which rotates in the same direction as the delivery direction of the film 15 and at the same speed as the rotational speed of the delivery belt 15, the end pieces of the film of the package 3a are prevented from being entangled.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is suitable for packaged items, especially foodstuffs and other products placed in trays or other containers. The product is covered with a stretchable plastic film, such as polyvinylidene chloride, so-called "stretch". This invention relates to an unloading device for a packaging machine that wraps with film.

0002

[Conventional technology]

Generally, as a packaging machine using stretch film, it is supplied to the packaging department and stretched. By pushing up the packaged item supplied to the cradle towards the film that has been Press the package against the film and hold the film under tension while folding the film. The product is wrapped by folding the film under the packaged product, and then the packaged product is transported out. The following is proposed.

0003

[Problem that the idea aims to solve]

By the way, in such a packaging machine, there is a is equipped with an unloading device with transfer rollers on the unloading side of the unloading belt, which covers the film. The package folded under the package is transferred onto the above-mentioned delivery belt, and then transferred to the transfer belt. It is designed to be sent out to the unloading side by B, but the rear end of the package is The edge of the film that has been folded to the side may protrude, causing the package to be placed on the unloading belt. When the film is transferred from the roller to the transfer roller, the end piece of the film gets caught up in the end of the carry-out belt and is carried out. It has aspects that tend to hinder operation.

0004 To solve this problem, the package can be tilted at the exit end of the delivery belt. It may be possible to transfer the device while moving it, but in order to make the device more compact, an unloading bell may be A transfer conveyor is installed on the delivery side of the belt to transport the packages in a direction that intersects with the delivery belt. If the transfer direction of the delivery belt and the transfer conveyor intersect, the package may be tilted. It is difficult to transfer the film while moving it, and it is difficult to solve the problem of the film end pieces becoming entangled. There was a problem.

[0005]

[Means to solve the problem]

The purpose of this invention is to solve these inconveniences. A film feeding device that feeds out the retch film and transfers it to the packaging section position, and an object to be packaged. a packaged object supply device that transfers the packaged material onto the pedestal, and the pedestal is raised at a position below the packaging section. A pedestal elevating device that can be moved downward and the above stretch film folded underneath the packaged item. In a packaging machine equipped with a film folding device for inserting a film into the package and a package delivery device, The above-mentioned unloading device is used to carry out packages in which the film is folded by the above-mentioned film folding device. A carry-out belt that sends out the material to the carry-out side, and a A transfer conveyor installed at a location lower than the output belt so as to transfer in a cross direction. and an unloading belt installed at approximately the same height as the unloading belt at the unloading end position of the unloading belt. Rotates in the same direction as the conveyor belt and at the same speed as the conveyor belt. This is a delivery device for a packaging machine equipped with a delivery roller.

[0006]

[Effect]

The packaging is moved towards the transfer conveyor that intersects with the output belt by actuation of the output belt. When the object is transferred, the unloading belt and the unloading belt installed at the unloading end position of the unloading belt The difference in level between the rollers and the above-mentioned transfer conveyor causes the package to tilt and the rear side to lift up. At the same time, the package is transported in an inclined state by the rotation of the delivery roller. The film is sent out onto the transfer conveyor, and the rear side of the package lifts up, causing the film to This prevents the end pieces from getting caught, and also prevents the transfer conveyor from crossing the output belt. Packages wrapped in stretch film can be transported smoothly in the direction of .

[0007]

【Example】

Figures 1 and 2 show an overview of the overall configuration of a stretch film wrapping machine. On the front side of the frame 1, there is a A packaged article supply device A equipped with a conveyor 4 for transporting the packaged articles 3 to the I'm being kicked.

[0008] The article to be packaged 3 is loaded onto the supply end of the conveyor 4 by the conveyor 4. A pedestal 5 is provided, and this pedestal 5 is a lift that is moved up and down by a drive unit as appropriate. 6 and which stretches and holds the stretch film when the pedestal 5 rises. A platform lifting device B is formed.

[0009] On the rear side of the main body frame 1 is a roll on which a stretch film 7 is wound. A roll body 8 is rotatably held, and the strain pulled out from the roll body 8 is Both ends of the film 7 are sandwiched between a pair of upper and lower endless belts 9 to form the packaging section. The film feeding device C that transfers the film to the second position is located on both sides of the upper part of the main body frame 1 in the front and back direction. It is located in At the end of the endless belt 9 on the insertion side of the stretch film 7 shows a cutter 10 that makes perforations in the width direction of the stretch film 7, and a cutter 10 that makes perforations in the width direction of the stretch film 7. A film cutting device D consisting of a film presser 11 provided on both sides of the film holder 10 is provided. It is.

0010 After reciprocating along the length direction of the film 7, the film 7 is placed on the side of the packaging section 2 of the main body frame 1. A partial folding body 12 and left and right folding bodies 13 which can be opened and closed with each other along the width direction of the film 7 are provided. cut from the perforation position of the film 7 as each folded body 12, 13 moves, Fold the film onto the bottom surface of the packaged item 3 pushed up by the pedestal lifting device B. A film folding device E is provided.

[0011] On the upper side of the main body frame 1, there is an endless frame that moves forward in contact with the upper surface of the package 3a. The film 7 is welded to the unloading belt 14 having a shape of A carry-out device F is provided which includes a carry-out belt 15 and a transfer conveyor 16.

0012 The packaged items 3, such as trays containing products, are delivered to the packaged item supply device A as shown in FIGS. 5 to 8. From the front side of the main body frame 1 to the lower part of the packaging section 2 approximately in the middle, the conveyor 4 It is then transferred to and placed on the pedestal 5. At the same time as this packaged object 3 is transferred, the film The stretch film 7 pulled out from the roll body 8 by the supply device C is attached to the main body frame. It is inserted into a pair of upper and lower endless belts 9 from the rear side of the arm 1 toward the packaging section 2 position. During the transfer, the cutter 10 of the film cutting device D cuts the film into the sewing machine. In this way, perforations 17 are formed as shown in Figures 5 to 6. The series of stretch films 7 are further transported to the packaging section 2 position. .

[0013] In this way, the object to be packaged 3 is fed onto the pedestal 5 as shown in FIG. In the state in which the series of stretch films 7 are supplied to the packaging section 2, As shown in FIGS. 7 to 8, the pedestal 5 is raised by the lift 6 of the pedestal lifting device B, and the packaging section The film 7 supplied to the 2nd position is pushed up from below and stretched, and then inserted into the rear folding body 12. The left and right folding bodies 13 slide along the bottom surface of the pushed-up object 3 to form perforations 17. At the same time, fold in the edges of the film 7 from three sides and attach it to 14 onto the delivery belt 15 heated by the heater 18. The front edge of the film 7 is folded under the tray 19, and then transported by the unloading belt 15. It is carried out while being welded, and is transferred by the transfer conveyor 16. In addition, the unloading bell Figure 15 shows one formed so as to surround a heating plate with a built-in heater 18. , a sheathed heater may be built into the delivery belt 15 itself, or a stretch film may be used. Using the adhesive properties of the film, it can be simply moved using the delivery belt 15 without incorporating a heater. It may also be sent out to the feed conveyor 16 side.

[0014] In the present invention, in the carrying out device F, as shown in FIGS. 1 to 4, the carrying out belt 15 is The conveyor belt 15 is lower than the conveyor belt 15 so as to be transferred in a direction that intersects with the conveyor belt 15 on the side. A transfer conveyor 16 is provided at a location, and a step 21 is provided between the delivery belt 15 and the transfer conveyor 16. It rotates at the unloading end position of the unloading belt 15 and is approximately at the same height as the unloading belt 15. A carry-out roller 20 is provided in the width direction of the carry-out belt 15. 22 is the drive of the unloading roller 20 It is a motor, and its rotation is transmitted via the belt 23, and its rotation speed is the same as that of the unloading belt. The same speed as step 15 or slightly higher speed is preferable.

[0015] The transfer conveyor 16 conveys the packages 3a and rollers 24 that send the packages 3a in the same direction as the delivery belt 15. A is provided with a transfer claw 25 that transfers a in a direction intersecting the carry-out belt 15, but the belt It may be a conveyor, etc., and it may be inclined so that the package 3a can be easily moved by the rollers 24. stomach. 26 in the figure is a roller.

[0016] Therefore, the package 3a wrapped by the film 7 is moved by the unloading belt 15. When the package 3a is transferred by the The rear side of the package 3a lifts up and separates from the belt surface of the delivery belt 15. The transfer conveyor 16 is rotated by the rotational force of the carry-out roller 20 and the rollers 24 in an inclined state. It is sent upward, and then sent in a direction crossing the delivery belt 15 by the transfer claw 25. the spot It is also possible to send only the delivery rollers 20 without providing the matching rollers 24.

[0017] As mentioned above, the package 3a is tilted due to the step 21, and is transported in that state. The end piece of the film 7 that protrudes to the rear side of the package 3a because it is sent by the output roller 20 27 is controlled to be caught in the belt 15. The diagram also shows the overall configuration of the packaging machine. An example is shown in Fig. 1 and Fig. 2. Film feeding device that clamps and feeds film or Utility Model Application No. 55-47992 , the film folding device disclosed in Japanese Patent Publication No. 56-34484 may be used. Other configurations of the location may be selected as appropriate.

[0018]

[Effect of the idea]

As described in detail above, the unloading device of the present invention uses a film folding device to There is a carry-out belt that sends out the package with the folded wrapper folded to the carry-out side, and a On the exit side, transport in a direction that intersects with the delivery belt, so that it is lower than the delivery belt. The transfer conveyor installed in Provided at the same height and in the same direction as the delivery direction of the delivery belt, and rotation of the delivery belt Equipped with an unloading roller that rotates at the same speed as the unloading belt. and the connection between the carry-out roller provided at the carry-out end position of the carry-out belt and the above-mentioned transfer conveyor. The conveyor is tilted due to the difference in level, and the transfer conveyor is rotated by the rotation of the unloading roller while maintaining the tilted state. Since the film is fed to the side, the edge of the film protruding from the package is wrapped around the end of the delivery belt. Packages wrapped in stretch film that can prevent them from being tampered with can be transported efficiently by a transfer conveyor.

[Brief explanation of drawings]

FIG. 1 is an overall vertical sectional view of a packaging machine showing an embodiment of the present invention.

FIG. 2 is an overall plan view of a packaging machine showing an embodiment of the present invention.

FIG. 3 is a sectional view showing an embodiment of the present invention in an operating state.

FIG. 4 is a sectional view showing an embodiment of the present invention in an operating state.

FIG. 5 is a working state diagram showing a packaging state of an embodiment of the present invention.

FIG. 6 is an operational state diagram showing the packaging state of an embodiment of the present invention.

FIG. 7 is a working state diagram showing the packaging state of an embodiment of the present invention.

FIG. 8 is a working state diagram showing a packaging state of an embodiment of the present invention.

[Explanation of symbols]

2 Packaging Department 3 Items to be packaged 3a Packaging 12 Folded body 13 Folded body 15 Unloading belt 16 Transfer conveyor 20 Unloading roller 21 steps A Packaged material supply device B Pedestal lifting device C Film feeding device D Film cutting device E Film folding device F Unloading device

Claims (1)

[Scope of utility model registration request] 1. A film supply device that feeds out a roll of stretch film and transfers it to a packaging section position; a packaged object supply device that transfers a packaged item onto a pedestal; In the packaging machine, the packaging machine is equipped with a pedestal elevating device that can move up and down with a cradle, a film folding device that folds the stretch film onto the underside of the packaged object, and a package delivery device. a carry-out belt for sending the packaged film folded by the device to the carry-out side; a transfer conveyor installed at a location lower than the carry-out belt so as to transport the package in a direction intersecting the carry-out belt on the carry-out side of the carry-out belt; A carry-out roller is provided at the carry-out end position of the carry-out belt at approximately the same height as the carry-out belt, and rotates in the same direction as the feed-out direction of the carry-out belt and at the same speed as the rotation speed of the carry-out belt. Packaging machine unloading device.