JPH0642601U - Box holding device in a box-sealing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to an improvement of a box-sealing machine for shipping fruits and the like in a corrugated cardboard box, and tries to press the upper surface of a high corrugated cardboard box without difficulty. . [Structure] Holders 35, each of which supports a pressing roller 36 and is urged downward by a spring 38, in front of and behind the upper surface of a transfer conveyor 26 for carrying cardboard boxes 28 of different heights.
Each holder 35 is provided with a projection 39 that interferes with the holder on the rear side of the transfer and interlocks the upward movement, and is raised to an appropriate height before pressing the upper surface of the cardboard box and lifted by the entry of the cardboard box. Keep the roller height within the specified range to prevent damage.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a box holding device for a box sealing machine.

[0002]

[Problems to be solved by conventional techniques and devices]

 Conventionally, a holder that supports a pressing roller is provided to press the lid of a cardboard box containing persimmons, citrus fruits, etc., and the lid is pressed and molded to ensure adhesiveness. However, in recent years, cardboard boxes with different storage capacities have been prepared in the same sorting field to meet the market demand.

Therefore, also in the box-sealing machine, assuming that cardboard boxes of different heights are used, the holder is biased downward by a spring so as to cope with a change in box height. However, if the heights are extremely different, the rollers may collide with the front end faces of the plurality of holders and the corrugated box that are on the transfer-traveling side, which may cause deformation of the end faces and eventually damage to the box.

[0004]

[Means for Solving the Problems]

 The present invention is intended to solve the above-mentioned drawbacks, and the pressing roller 36 is supported on the front and rear of the upper surface of the transfer conveyor 26 on which the corrugated cardboard boxes 28 having different heights are placed and transferred, and the springs 38 support the pressing rollers 36 downward. A box pressing device for a box-sealing machine is provided, in which biased holders 35, 35 are provided, and each holder 35 is provided with a protrusion 39 that interferes with the holder on the rear side of the transfer and interlocks the upward movement. .

[0005]

[Function and effect of the device]

 Therefore, according to the present invention, the problems of the prior art described at the beginning can be solved.

[0006]

Embodiment An embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows the persimmons to be sorted on the sorting conveyor 4 consisting of the grade sorting section 1, the class sorting section 2 and the classifying section 3 in 6 series and 1 series, and the classifying section 3 classifies them into excellent, excellent and good grades. The outline of the sorting facility which can be taken out while classifying according to the outer shape is shown. The sorting facility is constituted by the outside of the sorting conveyor 4, the load receiving section 5, the diffusion supply section 6 and the like. One of the front and rear sides of the sorting conveyor 4 is set as the excellent product extracting section 7, and the other side is set as the excellent product extracting section 8.

The class selection unit 2 has a CCD camera for each line and detects the outer shape of the fruit during transfer. The control unit 21 inputs the detected data, compares it with a preset class, and outputs a classification signal to the classifying unit 3. The classifying unit 3 classifies and discharges the selected fruits to the withdrawing conveyors 22, 22 provided below the selecting conveyor 4 in a straight line with the selecting conveyor 4, and these slat receiving plates of the selecting conveyer 4 made of a set of slat receiving plates are turned over. A discharge actuating device (not shown) is configured to operate in order to do so. An automatic boxing unit 24 is connected to the end of the drawing conveyor 22.

A product unloading conveyor 26 is arranged at the end of the automatic boxing unit 24. The product unloading conveyor 26 is in the form of a roller conveyor, and a box sealing machine 27 is provided in the middle thereof. The box-sealing machine 27 includes a fixed guide 29 that folds the front side of the front and rear lids of the corrugated cardboard box 28, a rotary body 30 that folds the rear side while interlocking with rotation, and an upper side of the front and rear lids. An application nozzle 31 for applying an adhesive to the fixed guides, fixed guides 32, 32 for simultaneously folding the left and right side lids inward, and a plurality of rollers provided below the fixed guides 32, 32 to support a plurality of rollers downwardly and quickly move up and down. A pressing roller body 33 for temporarily adhering while moving, and a box pressing device 34 provided for ensuring the adhering are provided.

In the box pressing device 34, a plurality of holders 35, 35 ... Arranged in the transfer direction are rotatably provided with rollers 36, and the holders 35, 35. Instead, it is swingably provided, and is normally urged by the springs 38, 38 ... When the holder 35 swings upward against the spring 38, the extension projections 39 extending forward at the lower end sides of the holder 35 come into contact with the subsequent holders and lift them. . That is, the roller position of the holder is not higher than the height h of the roller position of the holder provided in the subsequent holder.

A cardboard box supply control unit 40 is provided on the entrance side of the packaging machine 27 of the product unloading conveyor 26 and is configured to be vertically positionable, and suppresses excessive supply of the cardboard box 28 to the packaging machine 27. The proper supply of can be maintained. Reference numeral 41 denotes a feeding device which is disposed in the box-sealing machine 27 and which has an engaging mechanism that engages from the side surface side of the cardboard box 28 that reaches the box-sealing machine 27 and sends it out to the front side.

The operation of the above example will be described. The persimmons to be sorted are stored in a container and placed on a receiving conveyor to be transported. When the persimmon is taken out from the container, the grade worker observes the appearance quality and the like and sorts the persimmon into excellent, excellent, and good, and is transferred to the excellent product transfer section 4a or 4b of the sorting conveyor 4. Out of the above, the excellent product and the excellent product are detected by the camera when they reach the class selection unit 2, the detection result is sent to the control unit, and if it is judged which class they belong to, it is classified into a predetermined equal class. Is.

When the cardboard box that has been completely packed is placed on the product unloading conveyor 26, it is conveyed by driving rollers. The boxing machine 27 waits in the middle of the process, and first folds the front, rear, left and right lids of the cardboard box 28. At this time, the application nozzle 31 for supplying the adhesive that bonds the front and rear lids and the left and right lids in a superposed state is activated to apply the adhesive to the upper surfaces of the front and rear lids. Next, it temporarily passes under the pressing roller body 33 for pressing the box, and then passes through the box pressing device 34, but with the movement of the cardboard box 28, the rollers 36 on the transfer side are sequentially moved to the upper surface of the box. The roller presses the upper surface of the boarded cardboard box 28 while rolling. At this time, as the height of the cardboard box 28 increases, the pressing force of the roller 36 increases against the biasing force of the spring 38.

By the way, when the cardboard box 28 is high and the holder 35 swings largely upward around the pivot portion 37, the extension protrusion 39 interferes with the following holder and pushes up the holders 35, 35 a little. The difference in roller height between them is maintained at h, and when the cardboard box 28 enters the lower surface of the trailing roller 36, the roller 36 swings further upward and can press the upper surface of the corrugated ball box 28.

On the other hand, when the height of the cardboard box is low, the front roller 36 presses the upper surface of the cardboard box 28, but the following roller 36 is not at an extremely lower position than that, so that the extension protrusion 39 interferes with the front holder 35. Instead, the holder 35 swings by directly entering the cardboard box 28. In this way, the roller is pressed by the spring 38 force in order to correspond to a single device specification as a cardboard box pressing device with different heights, but when a high cardboard box enters, the roller and the upper end surface of the cardboard box are Are easily damaged by collision, but since the holder on the front side is subjected to the swing displacement in advance and the subsequent holder can push up and swing to correspond to it, the holder can swing in two steps and The above damage due to contact can be reduced.

[Brief description of drawings]

FIG. 1 is an overall plan view.

FIG. 2 is a side view of a part thereof.

FIG. 3 is a side view of a main part.

[Explanation of Codes] 4 Sorting Conveyor 5 Cargo Receiving Section 6 Diffusion Supplying Section 24 Automatic Boxing Section 26 Product Unloading Conveyor 27 Sealing Machine 28 Cardboard Box 30 Rotating Body 31 Coating Nozzle 32, 32 Fixed Guide 33 Holding Roller 34 Box Holding Device 35, 35 Holder 36 Roller 37 Pivoting part 38, 38 Spring 39 Extension projection part 40 Cardboard box supply control part 41 Feeding device

Claims (1)

[Scope of utility model registration request] 1. Holders 35, 35 that support a pressing roller 36 and are urged downward by springs 38 are provided in front of and behind the upper surface of a transfer conveyor 26 for carrying cardboard boxes 28 having different heights. A box retainer for a box-sealing machine, in which each holder 35 is provided with a projection 39 that interferes with the holder on the rear side of the transfer and interlocks the upward movement.