KR102234563B1 - Fruit loading system - Google Patents

Abstract

The present invention is a box transfer conveyor and a main frame in which a first motor that transmits power to the conveyor is installed, an auxiliary frame disposed above the main frame, and installed on the auxiliary frame, An open fruit loading pocket that falls downward when the weight is over, a pocket guide that is disposed under the fruit loading pocket of the auxiliary frame and is movable up and down by a first cylinder, and is disposed behind the fruit loading pocket of the auxiliary frame, and a rotation shaft and a rotating shaft An empty box stopper including a second motor that rotates at least one rotation bar radially extending from the rotational axis at a predetermined angle and a proximity sensor that detects an empty box entering the fruit loading unit through the box transfer conveyor, and the fruit loading pocket downward. A shaft support frame disposed on the main frame and capable of vertical rotation while supporting a rotation shaft and the rotation shaft, a pair of rotation rollers respectively mounted on both ends of the rotation shaft, and a second cylinder for controlling the vertical height of the shaft support frame It provides a fruit loading system including a loading box vibrating unit comprising a.

Description

Fruit loading system

The present invention relates to a fruit loading system, and in particular, in a device for continuously loading and discharging fruit into a box by automatically weighing fruit, while controlling to sequentially enter even empty boxes of different sizes, the fruit loaded in the box is uniformly We propose a new fruit loading system that applies twist vibrations so that it can be placed in a box.

As for agricultural products, it is important to mass-produce high-quality crops at low cost and to distribute them quickly at harvest time of each agricultural product. For example, most fruits such as tangerines, apples, and pears have a fixed harvest time, and once harvesting begins, long-term storage is difficult, so they must be shipped to consumers through a distribution network as soon as possible. If mass distribution is not carried out at the time of shipment, the cost of facilities for long-term storage increases, and the fruit's marketability decreases, which can have a devastating impact on the producing farms.

In order to ship fruit quickly, it is necessary to select a large amount of fruit according to size, shape, sugar content, etc., and place it in a packaging box for rapid distribution. In the past, fruit sorting or packaging was done by hand, or only the sugar content or size was sorted through an automatic line and then manually put in a packaging box. However, for fruits such as citrus fruits that are distributed in large quantities at a specific time, it is very important for distribution efficiency to be selected and packaged quickly. In the case of the existing packaging line, the selected fruit is packaged only in a specific box, e.g. 5kg or 10kg, and the weight or volume is determined. In the case of the automatic packaging line, the fruit is placed outside the box during the process of putting the fruit in the box. This fall and the problem was serious.

Conventionally, a device for automatically loading fruit into a box has been proposed (registered patent 10-1488221). This device is disposed on the main frame and includes a box conveying section including a conveying belt for conveying the packaging box, a loading section installed on the upper part of the box conveying section and loading fruit into the packaging box conveyed through the conveying belt, and the main frame And a vibration unit for applying vibration to a lower surface of the packaging box while the fruit is loaded in the packaging box at the loading unit, and a pair of box transport guides mounted on the main frame outside the transport belt. According to this technology, fruit can be loaded in packaging boxes of various sizes, and the occurrence of fruits can be reduced during the fruit loading process.

However, in the case of this device, the packaging box is moved from the rear of the loading system to the front under the control of the motor drive, and the motor is stopped during transfer, and the fruit is put from the loading section while the loading section is temporarily stopped, and then the motor is driven. Resume and pass through the loading section. Stopping and resuming the motor drive increases the overall fruit packing time and prevents faster packing.

In addition, an empty box stopper is arranged on the main frame behind the loading part. This empty box stopper moves the other empty boxes to the rear of the packing box located in the loading part during continuous movement of the packing box and interferes with each other during the loading process. It prevents and maintains a predetermined distance between each packaging box, but there is a disadvantage that it is difficult to accurately block entry to empty boxes of different sizes. In particular, if the box transfer unit does not stop and continuously operates, it may not be possible to block the entry of the empty box.

On the other hand, the device of the prior art is provided with a means for applying vibration when the fruit box is loaded, but it is only a simple vibration that moves the vibration plate up and down in a cylinder, making it difficult to uniformly arrange the fruits in the box in a short time. As a result, there are inconveniences, such as the need for a subsequent homogenization work by manpower.

Therefore, it is possible to sequentially load fruits by stopping the entry of empty boxes of various sizes even in the continuous operation of the box transfer unit, as well as to apply sufficient and effective vibration to the box in which the fruit is loaded, so that the fruits in the fruit box are quickly and evenly arranged. A fruit loading system is required.

The present invention was invented under the above-described technical background, and an object of the present invention is a device that continuously loads fruit into a box, and even for empty boxes of different sizes, it stops accurately before entering the fruit loading section and sequentially enters the fruit loading section It is to provide a fruit loading system that can be done.

In addition, the present invention is to provide a fruit loading system capable of applying effective vibration so that the fruit loaded in the box can be quickly and uniformly contained in the box.

In addition, another object of the present invention is to provide a new fruit loading system capable of stably discharging fruit without falling around the box when fruit is loaded in a box of various sizes even in a situation where the box transfer unit continuously operates.

In addition, other objects and technical features of the present invention will be presented in more detail in the detailed description below.

In order to achieve the above object, the present invention provides a box transfer conveyor and a main frame in which a first motor for transmitting power to the conveyor is installed, an auxiliary frame disposed above the main frame, and installed on the auxiliary frame, and a fruit conveying unit An open fruit loading pocket that contains the fruit delivered from and falls downward when it reaches a certain weight, a pocket guide disposed under the fruit loading pocket of the auxiliary frame and movable up and down by a first cylinder, and the rear of the fruit loading pocket of the auxiliary frame An empty box stopper comprising a rotation shaft and a second motor that rotates at least one rotation bar radially extending from the rotation axis and the rotation axis at a predetermined angle, and a proximity sensor that detects an empty box entering the fruit loading unit through the box transfer conveyor. , A shaft support frame that is disposed on the main frame below the fruit loading pocket and is capable of vertical rotation while supporting a rotation shaft and the rotation shaft, a pair of rotation rollers respectively mounted on both ends of the rotation shaft, and the top and bottom of the shaft support frame It provides a fruit loading system including a loading box vibration unit including a second cylinder for controlling the height.

In the present invention, the loading box vibration unit supports a fixed rotary shaft that is rotatable with both ends fixed to the inner surface of the main frame, a gear mounted on the fixed rotary shaft to receive power from the box transfer conveyor, and one end supporting the fixed rotary shaft. It may include a frame, a movable rotation shaft supported on the other end of the shaft support frame and on which rotation rollers are mounted at both ends, and a chain for transmitting power between the fixed rotation shaft and the movable rotation shaft.

In the present invention, it is preferable that a pair of rotating rollers mounted on both ends of the rotating shaft of the loading box vibration unit are installed in a staggered form with different arrangement angles of the pair of rollers. In addition, in the present invention, it is preferable that the rotation bar of the empty box stopper rotates opposite to the box conveying direction.

According to the present invention, it is possible to stably stop empty boxes waiting at the rear of the loading box even in a situation in which the box transfer container continuously operates.

In addition, according to the present invention, in a box in which fruits are dropped and loaded, the fruits are quickly and uniformly arranged inside, while the fruit loading process can be quickly and stably proceeded by preventing the fruits from escaping around the box.

In addition, according to the present invention, even if the transport means of the box is not stopped and operates continuously, the process of stopping the empty box, stably loading the fruit in the loading box, and discharging the loaded box is quickly and stably performed by manpower. Rapid fruit distribution is possible without follow-up work.

1 is a perspective view of a fruit loading system of the present invention
Figure 2 is a side view of the fruit loading system of the present invention
3 is a perspective view showing a box stopper and a fruit loading unit
4 is a side view showing a box stopper and a fruit loading unit
5 is a perspective view showing a box stopper
6 is a schematic diagram showing a stop and a loading box of an empty box
7 is a perspective view showing a vibrating unit
Fig. 8 is a schematic diagram showing the rising state of the vibration unit
9 is a schematic diagram showing a descending state of the vibrating unit

The present invention controls the sequential entry of empty boxes in a device that automatically weighs fruits and continuously loads and discharges them into a box, while guiding fruit fall while moving up and down according to the height of the box when the measured fruit falls into the box, We propose a new fruit loading system that applies vibration so that the fruit loaded in the box does not overflow and can be placed in the box evenly.

In general, the automatic system that puts fruit in a packaging box and then disposes it is performed in the following steps. First, the empty box is moved to the fruit loading position through an automatic supply line such as a transfer conveyor. Fruits sorted by grade are put into the loading section through a separate transfer line. When the fruit is loaded as much as the set weight value, the lower part of the loading part is opened and the fruit is put in the packaging box. When fruit is placed in the box, it is vibrated by a separate vibrating means to minimize falling fruits. Boxes that have been loaded with fruit are automatically ejected.

In such an automatic fruit loading system, the present invention has the following main technical features.

First, a new empty box stopper is provided that can stably maintain a standby state before entering the fruit loading section, regardless of the size of the empty box. The conventional stopper method may be a method that interferes with the advance of the empty box by vertical motion of the cylinder rod using, for example, an air cylinder, but in this method, if the exact stop time is not correct, the empty box does not get caught by the stopper or It is easy to cause errors such as the phenomenon that the empty box in standby is pushed up by the stopper. In the present invention, a rotation bar connected to a rotation shaft, specifically a cross-shaped rotation bar, is rotated in the opposite direction to the box transport direction while interfering with the inner surface of the empty box to limit movement. The rotation operation of the rotating bar is controlled by a brake motor, and the entry of the empty box is detected by a proximity sensor, so that an error in which the empty box is undesirably passed to the fruit loading section can be prevented at the source.

The second feature of the present invention is to apply a twist vibration to the bottom of the box on which the fruit is loaded, and it is possible to quickly and uniformly arrange the fruit in the box. Previously, the vibration plate was vibrated by using an air cylinder at the bottom of the box as a power source, but the vibration efficiency was insignificant because it was difficult to substantially equalize the fruit because only vertical vibration was applied while applying a physical shock to the box. In the present invention, the fruit in the box can be stably arranged by twisting the entire box vertically while moving the vibrating unit up and down as necessary with a cylinder. The power for the twist vibration may use the box transfer power in the fruit loading system, or it is possible to have a separate power source. In particular, noise of the vibration unit may be reduced by transmitting a twist operation to the box rather than a shaking operation for vibration.

In addition, the present invention installs a pocket guide that can move up and down at the bottom of the pocket in addition to the open pocket of the fruit loading part, and loads fruit by interlocking the vertical position of the pocket guide according to the height of the loading box, thereby causing falling fruits around the box. Prevent it from doing. For example, when working with a'A type box', the guide is placed on the top, and when working with an'open box', the guide can be lowered to match the height of the box to minimize falling.

Hereinafter, with reference to the drawings, the technical configuration and effects of the present invention will be described in more detail through preferred embodiments.

Figure 1 is a perspective view of the fruit loading system 100 of the present invention, Figure 2 is a side view. A box transfer conveyor 108 is disposed inside the main frame 102 of the fruit loading system, and an auxiliary frame 104 is installed at the top. The box transfer conveyor receives a driving force by the first motor 110 and rotates in one direction to transfer the box seated on the upper surface of the conveyor to the front. The conveyor can be composed of two lines, a belt-type upper surface and a chain-type internal surface.

A fruit loading part and an empty box stopper are arranged in the auxiliary frame disposed on the upper part of the main frame. The fruit loading part is installed inside the auxiliary frame, and there is an open fruit loading pocket 120 that contains the fruit delivered from the fruit conveying part 200 and falls downward when it reaches a certain weight, and is also located under the fruit loading pocket of the auxiliary frame. It is disposed and includes a pocket guide 122 that is movable up and down by the first cylinder 124.

The empty box stopper is disposed at the rear of the fruit loading pocket of the auxiliary frame, and at least one rotation bar 132 extending radially from the rotation axis and the rotation axis, and a second motor 134 rotating the rotation axis at a predetermined angle, and a box transfer conveyor. It includes a proximity sensor (NS) for detecting the empty box (B2) entering the fruit loading portion. In addition, a vibration unit 140 is disposed on the main frame below the fruit loading pocket, and a twist vibration is applied to the lower surface of the loading box when the fruit falls from the fruit loading pocket to the loading box B1.

By arranging the optical sensors (PS1, PS2, PS3) in the appropriate position of the main frame or the auxiliary frame, it is possible to detect whether an empty box is entered, the position of the loading box, and the discharge status of the box that has been loaded with fruit.

3 and 4 are perspective and side views showing a box stopper and a fruit loading unit. The empty box stopper rotates the rotation bar 132 with the driving force of the second motor 134 to place the empty box in a stopped state at the rear of the fruit loading section or transfer the empty box to the fruit loading section. The rotation bar of the empty box stopper is preferably rotated in the opposite direction to the box transport direction (M1 direction) so as not to prevent the temporarily stopped empty box (B2 in Fig. 1) from being sequentially transferred to the fruit loading unit in the next step ( R direction).

Fruit can be put in the fruit loading pocket by the conveyor operation of the fruit conveying unit 200 by driving the third motor 210, and a predetermined reference value by monitoring the weight of the fruit in the pocket by measuring means such as the load cell 121 Upon reaching, the fruit loading is stopped. In this state, the fruit loading pocket lower portion 121 is opened to the left and right to drop the fruit into the loading box. The box transported to the fruit loading section (B1 in Fig. 1) may have a different height depending on the shape, and in the case of an'open box' in which the upper part of the box is opened without a cover, rather than a'A-type box' with a box cover. During the fruit loading process, the possibility of fruit falling around the box increases. In this case, by sensing the height of the box with a separate sensor and driving the first cylinder 124, the pocket guide under the fruit loading pocket can move up and down (in the direction of M2). It acts as a barrier and prevents fruit from falling.

5 is a perspective view showing the box stopper 130. The box stopper includes a fixing part 131 capable of mounting the entire structure on an auxiliary frame, a rotation shaft 133 connected to both ends of the fixing part via a bearing 133a, and a rotation bar radially mounted on the outer circumferential surface of the rotation shaft. 132). The rotation shaft is rotated by the driving force of the second motor 134 that transmits power through the gear unit 135, and the driving and stopping of the motor are intermittently controlled so that the rotation position of the rotation bar is intermittently changed.

At least one rotating bar, preferably two or more, is preferably formed by extending radially to the rotating shaft. The rotation angle of the rotation shaft is determined according to the number of rotation bars. For example, when there is only one rotation bar, the rotation bar is rotated 360° to position the rotation bar vertically downward to stop the empty box entering from the rear of the fruit loading part. In the case of two rotating bars, the rotating shaft rotates in units of 180° and one of the rotating bars is positioned vertically downward. In the case of three rotating bars, the rotating shaft is rotated in units of 120° and one of the rotating bars is positioned vertically downward. , As shown in the embodiment of FIG. 5, in the case of four rotation bars, the rotation shaft rotates in units of 90° to position any one of the rotation bars (see 132a in FIG. 4) vertically downward to stop the empty box at the rear. .

A plurality of empty boxes entering the fruit loading section can be stopped at once by the rotation of the rotating bar, and then the empty boxes can be sequentially transferred to the fruit loading section one by one.

When a sensor for stopping the empty box and a blocking object for stopping movement are installed on the frame of the box transfer conveyor, it may be difficult to accurately stop the empty box due to the continuous movement of the conveyor, or the empty box may leave the conveyor due to a sensing error. However, according to the box stopper of the present invention, even if the box transfer conveyor continues to operate, since the rotation bar is mounted on the inner surface of the empty box to prevent entry, there is an advantage of stably stopping the empty box.

6 schematically shows an empty box B2 temporarily stopped at the rear of the fruit loading section and a loading box B1 located in the fruit loading section. Even if the box transfer conveyor operates continuously without interruption due to the stable empty box stop motion of the empty box stopper, operation errors such as passing empty boxes to the fruit loading section in the front do not occur, enabling continuous and fast fruit loading. The loading box located in the fruit loading part can maintain a stable state when loading fruit by arranging a separate vertical stopper 109 at the bottom of the front.

7 is a perspective view showing the vibration unit 140. It is preferable that the vibrating part is disposed in the center of the main plane below the fruit loading part. The vibration unit may be fixed to the main frame by the fixing frame 142.

The vibration unit of the present invention basically supports a rotation shaft and a shaft support frame capable of vertical rotation while supporting the rotation shaft, a pair of rotation rollers respectively mounted on both ends of the rotation shaft, and a second cylinder that controls the vertical height of the shaft support frame. It may include. A pair of rotating rollers rotating at both ends of the rotating shaft through the rotating shaft by raising or lowering the shaft support frame with the second cylinder rolls the lower surface of the loading box, so that vibration of the box may occur.

The loading box vibration unit may include an independent driving means, for example, an electric motor or a hydraulic cylinder, to generate a vibration force, and unlike this, it is also possible to generate vibration by receiving the power of the fruit loading system.

To this end, the loading box vibrating unit includes a fixed rotary shaft 144 rotatable with both ends fixed to the inner surface of the main frame, a gear 145 mounted on the fixed rotary shaft to receive power from the box transfer conveyor, and one end of the fixed rotary shaft. Supporting shaft support frame 143, a moving rotation shaft 147 supported on the other end of the shaft support frame and on which rotation rollers 148a and 148b are mounted at both ends, and a chain that transmits power between the fixed rotation shaft and the moving rotation shaft (146) may be included. The fixed rotation shaft 144 may be fixed to the inner surface of the main frame via the bearing 144a.

The shaft support frame can be raised or lowered by the operation of the second cylinder 141, and accordingly, a pair of rotary rollers 148a and 148b at both ends of the moving rotary shaft sequentially contact the lower surface of the loading box, Change the height in position. Accordingly, when viewed as a whole, the loading box undergoes a movement similar to the twisting motion, and as a result, the fruits inside the box can be uniformly arranged within a short time.

To this end, it is preferable that a pair of rotating rollers respectively mounted on both ends of the rotating shaft of the loading box vibration unit are installed in a staggered form with different arrangement angles of the pair of rollers as shown in FIG. 7.

It is preferable that the operation of the vibrating unit proceeds only while the fruit is falling into the box after the loading box is placed in the fruit loading section. To this end, the second cylinder is operated when the fruit is loaded after the loading box is transferred to the fruit loading unit. 8 is a schematic diagram showing the rising state of the vibrating unit, the shaft support frame 143 rises upward by the second cylinder operation, and a pair of rotation rollers 148a and 148b are exposed above the box transfer conveyor 108, respectively. , The lower surface of the loading box (not shown) disposed thereon is subjected to vibration forces at different heights by a pair of left and right rotating rollers. For example, when the box rises, the left rises when the right rises, and the left rises when the right descends. As the box is applied with a vertical, left and right twist vibration force, the fruit loaded inside the box is not skewed to one side, and the fruit is placed evenly. I can. As a result, when the fruit falls, the fruit does not escape around the box, and there is no need to arrange the fruit in the box by manpower.

The chain of the vibration unit (145 in FIG. 7) is coupled with the chain unit 108a on the inner surface of the box transfer conveyor to receive power, and thus, when the vibration unit is raised, a vibration force is continuously applied to the bottom of the loading box. On the other hand, when the vibrating part is lowered, even if the power is transmitted to the vibrating part, the vibration force is not applied to the bottom of the box. 9 is a schematic diagram showing a lowering state of the vibrating unit, and when the shaft support frame 143 is lowered by the second cylinder motion, the rotating roller is disposed under the box transfer conveyor. Even if the rotating roller rotates, the lower surface of the loading box and It is separated and the vibration force is not transmitted.

The control of the above-described opening of the fruit loading pocket, the first cylinder operation for vertical movement of the pocket guide, the second cylinder operation of the vibrating unit, and the second motor operation for the rotation of the rotary shaft of the empty box stopper are all controlled by the main controller (not shown). Considering the operation of the system, it may be designed to control appropriately.

In the present invention, the empty box entering from the rear can be properly stopped even when the box conveying kenveyor is in operation, and the fruit in the box can be stably uniformed by applying a twist vibration to the box in which the fruit is loaded. Through this improved function, the inconvenience of stopping the automatic line due to incorrect entry of the box or falling fruit when loading fruit in the fruit loading system or manually re-packing the fruit in the box can be solved, and the overall packaging While improving efficiency, it is possible to pack fruits using various packaging boxes, not limited to specific sized boxes, so it is expected that it will be able to meet the competitiveness of fruit producers as well as the improvement of the work of related distributors.

Although the present invention has been exemplarily described above through preferred embodiments, the present invention is not limited to such specific embodiments, and the technical idea presented in the present invention, specifically, various forms within the scope described in the claims. It may be modified, changed, or improved.

100: fruit loading system 102: main frame
104: auxiliary frame 108: box transfer conveyor
110: first motor 120: fruit loading pocket
122: pocket guide 124: first cylinder
130: box stopper 131: fixed part
132: rotating bar 133: rotating shaft
134: second motor 135: gear
140: vibration unit 141: second cylinder
142: fixed frame 143: shaft support frame
144: fixed rotating shaft 144a: bearing
145: gear 146: chain
147: moving rotating shaft 148a, 148b: rotating roller
200: fruit conveying unit 210: third motor
B1: loading box B2: empty box
NS: proximity sensor PS1, PS2, PS3: optical sensor

Claims (3)

The box transfer conveyor and the main frame with the first motor that transmits power to the conveyor,
An auxiliary frame disposed above the main frame,
An open fruit loading pocket that is installed on the auxiliary frame and drops to the bottom when it reaches a certain weight by holding the fruit delivered from the fruit conveying unit,
A pocket guide disposed under the fruit loading pocket of the auxiliary frame and movable up and down by a first cylinder,
It is disposed at the rear of the fruit loading pocket of the auxiliary frame, and detects an empty box entering the fruit loading section through a box transfer conveyor and a second motor that rotates at least one rotation bar radially extending from the rotation axis and the rotation axis at a predetermined angle. Empty box stopper including a proximity sensor,
A fixed rotation shaft that is disposed on the main frame below the fruit loading pocket and rotatable with both ends fixed to the inner surface of the main frame, a gear mounted on the fixed rotation shaft to receive power from a box transfer conveyor, and one end of the fixed rotation shaft A shaft support frame that supports, a moving rotation shaft including a pair of rotation rollers supported at the other end of the shaft support frame and mounted at both ends, a chain for transmitting power between the fixed rotation shaft and the moving rotation shaft, and the shaft support frame Including a loading box vibration unit including a second cylinder for controlling the vertical height of the
Fruit loading system.
delete The method of claim 1,
A fruit loading system, characterized in that the pair of rotation rollers mounted at both ends of the moving rotation shaft of the loading box vibration unit are installed in a staggered shape with different arrangement angles of the roller pairs.

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