KR20010025632A - A device of unfolding vinyl bag in a fruit packaging apparatus - Google Patents

Abstract

PURPOSE: A plastic bag opening device of a fruit packing machine is provided to pack fruit into tube type plastic bags having stuck both insides continuously. CONSTITUTION: A tube type plastic bag(2) is unwound from a bobbin(21). Then, a front end portion of the plastic bag is opened. A wedge-shaped opening tool(60) is inserted into the opened plastic bag. The plastic bag of the inserted portion and the opening tool are lifted up together with a starting hopper(42) mounted on a rotary table(40). The front end portion of the plastic bag is fixed, and the opening tool is dropped from the plastic bag. Thereby, the plastic bag having both stuck insides is opened. Finally, fruit is put into the tube type plastic bag and packed by a full automatic method.

Description

A device of unfolding vinyl bag in a fruit packaging apparatus}

The present invention relates to a plastic bag spreading device of a fruit packaging machine for packaging a relatively small quantity of fruit, such as sweet persimmons, apples, pears, tangerines, etc. in a tube-shaped plastic bag, more specifically in bobbins After unwinding the wrapped tube-shaped plastic bag from the bobbin, open the front end of the plastic bag and insert the wedge-shaped opening into the inside of the opened plastic bag, followed by the plastic bag and opening of the opening where the opening is inserted. To the front end of the plastic bag by fixing them together with the fruit feeding movable hopper installed on the rotating table, and then dropping the opening opening while releasing the holding opening of the opening inside the plastic bag. It relates to a plastic bag spreading device of the fruit packaging machine that can be opened.

In general, the plastic bag for wrapping the fruit is wound in the form of a tape on the bobbin in a long form in the form of a tube, the plastic bag is in a state in which the entire inner surface of the plastic bag is in close contact.

If you want to put the fruit in the plastic bag to wrap the plastic bag in the bobbin while cutting the fruit to the length enough to put the fruit and then seal the lower end with a heating wire, or tie the bottom portion closed in the state Opening the upper end of the plastic bag to put the fruit into the open, and after the completion of the fruit is completed, the sealing of the top of the plastic bag with a heating wire, or tied to complete the packaging work.

However, the plastic bag is in a state in which the entire inner surface of the plastic bag is in close contact with each other because of the smooth surface of the material. Therefore, it is very difficult to open the plastic bag in which both sides of the inner bag are in close contact. This was impossible, and since the operation of opening the plastic bag was dependent on manual labor, the productivity was lowered, and the labor cost was excessively expensive.

The present invention is to solve the above problems, by inserting the wedge-shaped opening into the inside of the plastic bag opened by opening the front end of the plastic bag in the process of releasing the tube-shaped plastic bag wound on the bobbin, It is formed in a tube shape, and the wedge-shaped openings inserted into the plastic bags in which both inner surfaces are in close contact with each other are moved so that the plastic bags in which the two sides are in close contact with each other can be opened. It is a technical task to put and pack.

The present invention for achieving the above object can be introduced into the plastic bag of fruit supplied from the fruit supply device by opening the plastic bag is in close contact with the inner surface of both sides while unwinding the tubular plastic bag wound on the bobbin. In the plastic bag spreading device of the fruit packaging machine, a rotary table that is clickably rotated by a drive motor is installed at the center of the fruit packaging machine, and the periphery of the rotary table is formed so that the through hole penetrates up and down. A pair of fruit-operated movable hoppers, which are enclosed and opened by a cylinder, are installed, and a frame on one side of the rotary table is provided with a bobbin wrapped with a tubular plastic bag and a guide roller for guiding the plastic bag released from the bobbin. On one side of the rotating shaft tube is installed the rotary table "ㄷ" type horizontal frame after A support heater is installed on the inner surface of the "c" frame on the side of the rotating shaft, and on the opposite "c" frame, a sealing tool and a cutting knife for sealing the plastic bag and cutting the plastic bag forward and backward are installed. The side frame is vertically installed with a vertical guide pipe having one side open in the vertical direction and a vertical guide rod installed in the vertical direction on the outside, and upper and lower pulleys with a timing belt wound on the inner upper and lower portions of the vertical guide pipe, A motor is installed, and a slider having a connecting rod having one end fixed to the timing belt is installed on the vertical guide rod. A horizontal bracket is horizontally installed on the other side of the slider to face the space between the support heater and the sealing hole. On one side of the bracket, a pair of plastic bag spreading plates with inclined bottom end inwards have short stroke It is installed to face each other with the lining interposed therebetween, and the guide plate is installed on the inner surface of the plastic bag opening plate on both sides, and the plastic bag is opened on the inside of the plastic bag with the plastic bag inserted between the two plastic bag opening plates. The inclined portion of the lower portion is inclined downward in the same shape as the space between the plates to form guide grooves guided to the guide plate on both sides, and the opening is formed in the handle groove is detachably inserted seated on the upper surface.

1 is a plan view of a fruit packaging machine installed with a plastic bag opener according to the present invention.

Figure 2 is a front sectional view of a fruit packaging machine equipped with a plastic bag opener according to the present invention.

Figure 3 is a front view showing an extract of the plastic bag opening device according to the present invention.

Figure 4 is a side structural view of the present invention shown in FIG.

FIG. 5 is an enlarged cross-sectional view of part “A” of FIG. 1. FIG.

FIG. 6 is an enlarged cross-sectional view of part “B” of FIG. 1. FIG.

7 is a perspective view of the opening of the main component of the present invention.

<Explanation of symbols for main parts of drawing>

1: fruit 2: plastic bag 3: frame

10: fruit supply unit 11: fruit feed hopper 12: fruit feed conveyor

20: plastic bag supply and cutting unit 21: bobbin

22: guide roller 23: "c" type frame 24: support heater

25 sealing hole mounting base 26 cylinder 27 sealing hole

28: cutting knife 29: vertical guide pipe 30: vertical guide rod

31: timing belt 32: upper pulley 33: lower pulley

34: slider 35: connecting rod 36: horizontal bracket

37: plastic bag spreading plate 38: cylinder 39: guide plate

40: rotary table 41: through-hole 42: fruit injection movable hopper

43: drive motor 44: rotary shaft tube 50: fruit packaging unit

60: opening 61: inclined portion 62: guide groove

63: handle groove 100: fruit packaging machine

Hereinafter, a plastic bag opener of a fruit packaging machine according to the present invention will be described with reference to the accompanying drawings, FIGS. 1 to 7.

Fruit packaging machine is provided with a plastic bag opener of the present invention, as shown in Figure 1, the fruit supply device for aligning the fruit 1 contained in the fruit injection hopper (11) in a row through the fruit injection conveyor (12) The plastic bag supply and cutting device unit 20 for unwinding the part 10 and the tube-shaped plastic bag 2 wound around the bobbin 21 and opening the inlet, cutting it to a predetermined length and sealing the lower end part thereof. The fruit 1 supplied from the fruit supply device 10 after the rotation of the plastic bag supply and the cutting device unit 20 while the tip end of the plastic bag 2 opened in the holding state is maintained while being clicked to rotate. After the fruit (1) is put into the plastic bag (2), and after the fruit (1) is put into the plastic bag (2), the rotary table 40 and the fruit (1) is rotated by clicking again to rotate in the next process Sealing and cutting the upper part of the plastic bag 2 It consists of a fruit packaging device 50 for discharging the fruit is completed to the outside.

In the center of the fruit packaging machine 100 is a rotary table 40 that is rotated in a click manner by the drive motor 43, the through-hole 41 is formed to penetrate up and down on the outer peripheral side of the rotary table 40 The through hole 41 is provided with a pair of fruit feeding movable hoppers 42 which are opened and closed by a cylinder.

Then, the guide roller 22 for guiding the plastic bag 2 released from the bobbin 21 and the bobbin 21 in which the tubular plastic bag 2 is wound on the frame 3 on one side of the rotary table 40. Is installed.

In addition, one side of the rotary shaft tube 44 in which the rotary table 40 is installed horizontally after the "c" shaped frame 23 is installed on the inner surface of the "c" shaped frame 23 of the rotary shaft tube 44 side. The support heater 24 is installed, and the opposite side "c" type frame 23 is provided with a sealing tool mounting bracket 25, and the sealing tool mounting bracket 25 is moved back and forth by the cylinder 26 and the plastic bag 2 The sealing tool 27 and the cutting knife 28 which seal and cut | disconnect are provided respectively.

In the frame 3 on the side of the "c" shaped frame 23, a vertical guide tube 29 having one side open in the longitudinal direction and a vertical guide rod 30 installed in the vertical direction on the outside is vertically installed. Upper and lower pulleys 32 and 33 in which the timing belt 31 is wound are installed on the inner upper and lower portions of the pipe 29, and the motor M is installed on the lower pulley 33, and the vertical guide rod 30 has one end. A slider 34 provided with a connecting rod 35 fixed to the timing belt 31 is installed to move up and down, and a plastic bag holder 37a is supported by a horizontal bracket 36 on the other side of the slider 34. It is installed horizontally so as to face toward the space between the heater 24 and the sealing opening 27.

The plastic bag holder 37a has a horizontal bracket facing each other so that a pair of plastic bag spreading plates 37 inclined at the lower end thereof are opened and closed while interposing a cylinder 38 having a short stroke in both sides. 36), and the guide plate 39 is provided on the inner surface of the two plastic bag opening plates 37.

In addition, the lower portion of the lower portion has the same shape as the space between the two plastic bag opening plates 37 inside the plastic bag 2 with the plastic bag 2 inserted therebetween between the two plastic bag opening plates 37. The inclined portion 61 is formed to be inclined to form a guide groove 62 guided to the guide plate 39 on both sides, and the opening hole 60 having the handle groove 63 formed thereon is detachably inserted. .

Reference numeral 4 in the drawings denotes a guide rail, and reference numeral 5 denotes a guide roller guided to the guide rail 4.

Referring to Figures 1 to 7 the operational relationship of the present invention configured as described above are as follows.

When packaging the fruit (1) contained in the fruit hopper (11), first of all, the tube-shaped plastic bag (2) is released from the bobbin (21), the plastic bag (2) is in close contact with each other inner surface It is a state wound around the bobbin 21 in tape form.

As described above, the plastic bag 2 released from the bobbin 21 is inserted upward through the guide roller 22 and inserted upwardly into the space between the two plastic bag spreading plates 37. To be exposed upwards.

Thereafter, the tip inlet of the plastic bag 2 exposed above the space portion between the two plastic bag opening plates 37 is opened by a worker's hand, and the inclined portion 61 is opened as shown in FIGS. 2 and 7. Insert the opening opening 60 so that it faces downward.

At this time, the both sides of the plastic bag opening plate 37 is opened so that the space between the two sides of the plastic bag opening plate 37 is slightly smaller than the thickness of the opening opening 60 to be inserted into the space between the plastic bag opening plate 37 ( 1 to 3mm) wide and can be loosely inserted into the space between the plastic bag opening plates 37 on both sides, and the lower sides of the plastic bag opening plates 37 are formed to be bent inwardly to each other so that both plastic bags Even if the opening opening 60 is inserted into the opening plate 37 in the open state, the opening opening 60 is caught on the inclined portion without falling down.

And the guide plate 39 is fixed to the inner surface of the both sides of the plastic bag opening plate 37 and the guide groove 62 guided to the guide plate 39 on both sides of the opening opening 60 is formed in the vertical direction. As a result, the opening 60 is prevented from flowing left and right in the space between the two plastic bag opening plates 37.

In this state, when the cylinders 38 provided on both sides of the space between the plastic bag opening plates 37 are operated so that both plastic bag opening plates 37 are retracted, the openings are formed between the plastic bag opening plates 37 on both sides. (60) fits tightly into a holding state.

At this time, since the opening hole 60 is inserted into the tubular plastic bag 2, the plastic bag 2 is disposed between the inner surface of both sides of the plastic bag opening plate 37 and the outer surface of both sides of the opening hole 60. It becomes stuck and becomes fixed state.

Thereafter, as shown in FIGS. 3 to 5, when the motor M operates and the lower pulley 33 connected to the motor shaft rotates, the timing belt 31 wound between the upper and lower pulleys 32 and 33. ) Will rotate.

At this time, one end of the timing belt 31 is fixedly coupled to the timing belt 31 and the other end of the timing belt 31 is coupled to the slider 34 so that the connecting rod 35 and the slider 34 are moved as the timing belt 31 moves. ) Moves from bottom to top.

The slider 34 is moved up and down in the vertical direction to the vertical guide rod 30 installed vertically in front of the vertical guide pipe 29, the motor (M) is the slider 34 and the connecting table 35 is the upper and lower parts Forward and reverse rotation is possible so as to move up and down only in the section between the pulleys (32, 33).

As described above, as the connecting belt 35 and the slider 34 are raised within the section between the upper and lower pulleys 32 and 33 by the rotation of the timing belt 31, the plastic bag holder 37a is horizontal to the slider 34. Since it is connected as the bracket 36, the plastic bag holder 37a is raised.

At this time, since the inlet of the plastic bag 2 is held in the open state of the plastic bag holder 37a as described above, the opening of the upper portion of the open plastic bag 2 rises to the upper side and the through hole of the rotary table 40 ( When reaching 41), the motor is stopped and the rise of the plastic bag 2 is also stopped.

The upper side inlet of the plastic bag 2 stopped and thus rises is wrapped around the outside of the pair of fruit feeding movable hoppers 42 which are installed in the through hole 41 of the rotary table 40. Then, the pair of fruit filling movable hoppers 42 are opened by the operation of the cylinder to hold the open inlet of the plastic bag 2 as shown in FIG. 2.

After holding the inlet of the plastic bag 2 open as a pair of fruit feeding movable hoppers 42 as described above, the cylinders 38 provided on both sides between the plastic bag opening plates 37 on both sides of the plastic bag holder 37a. By operating the space between the two sides of the plastic bag opening plate 37 to be opened, if both sides of the plastic bag opening plate 37 is opened so that both outer surface of the opening opening (60) and both sides of the plastic bag opening plate 37 The inner surface of the gap is opened to release the holding state of the plastic bag (2).

At this time, since both sides of the plastic bag opening plate 37 are bent inwardly inwardly, the openings 60 are inserted between the two sides of the plastic bag opening plate 37 even when both sides of the plastic bag opening plate 37 are opened. ) Is not separated from the plastic bag holder 37a.

In this state, when the motor M rotates in reverse to allow the connecting rod 35 coupled to the timing belt 31 to descend, the slider 34 connected to the connecting rod 35 and the slider 34 and the horizontal bracket 36 are used. Combined plastic bag holder 37a is simultaneously lowered.

At this time, the plastic bag 2 is a plastic bag inserted between the plastic bag opening plate 37 on both sides of the plastic bag holder 37a while the upper inlet is held in the fruit feeding movable hopper 42 of the rotary table 40. Since 2 is a baggy state, the opening 60 inserted into the plastic bag 2 is lowered.

The inner side of both sides of the plastic bag 2 below the opening opening 60 is in close contact with each other. As described above, the inlet of the plastic bag 2 is connected to the fruit feeding movable hopper 42 of the rotary table 40. Opening openings 60 held by the openings and inserted into the inner sides of the openings 60 descend from the inside of the plastic bags 2 so that the inner surfaces of the plastic bags 2 that are in close contact with each other are opened.

At this time, the opening opening 60 is formed in the inclined portion 61 in the shape of an arrow so that the lower portion is inclined so that the opening of the plastic bag 2 when the opening opening 60 descends by its own weight inside the plastic bag 2. Without damaging the inner surface of the plastic bag (2) in close contact with each other will be able to open naturally.

As shown in FIG. 2, the plastic bag 2 is opened and lowered as described above. After opening and lowering the plastic bag 2, the cylinder 26 installed in the “c” -type frame 23 operates while the sealing hole ( When the plastic bag 2 comes into contact with the support heater 24 by the sealing opening 27 by pushing the cutting knife 28 and the cutting knife 28 toward the support heater 24, the support heater 24 is supported by heat. The part contacted with the heater 24 is sealed, and the cutting knife 28 installed at the lower end of the sealing opening 27 moves forward with a slight time difference to cut the lower end of the sealing part of the sealed plastic bag 2. To prepare a sealed plastic bag.

The plastic bag 2 is sealed at the bottom and cut to a predetermined length as described above is held in the fruit feeding movable hopper 42 of the rotary table 40 to be suspended with the inlet open, followed by a sealing opening 27. And the cutting knife 28 is retracted and the drive motor 43 for rotating the rotary table 40 in a clickable manner stops after the rotary table 40 is rotated 90 degrees.

As described above, the rotation table 40 is rotated by 90 degrees and stops at the position of the feeding part of the fruit feeding conveyor 12. The fruit feeding conveyor 12 operates the fruit feeding conveyor 12 in this state. Fruit 1 is loaded into the plastic bag 2 suspended in the fruit filling movable hopper 42 through the fruit filling movable hopper 42 of the rotary table 40. At this time, the quantity of fruit input is controlled by the sensor so that the fruit of the set quantity is put into the plastic bag (2).

After the fruit is inserted into the plastic bag 2 as described above, when the driving motor 43 is rotated by 90 degrees again and stopped, the support heater 24 installed in the "c" type frame 23 at the position and When the support heater, the sealing tool, and the cutting knife having the same structure as the sealing tool 27 and the cutting knife 28 are respectively installed and the upper part of the plastic bag 2 containing the fruit is sealed and cut, the upper part is cut as described above. As it falls down by the weight of the fruit is discharged to the outside through the outlet.

As the series of operations described above are continuously performed, the fruit may be continuously packed in a tube-shaped plastic bag 2 in which the inner surface is in close contact.

The plastic bag spreading device of the fruit packaging machine of the present invention as described above, in the process of releasing the tube-shaped plastic bag wound on the bobbin in the bobbin open the wedge-shaped open to the inside of the plastic bag opened by opening the end of the plastic bag By inserting the sphere, it is formed in a tubular shape and both sides of the inner surface of the plastic bag is inserted into the inside of the plastic bag, the wedge-shaped opening is moved so that the plastic bags in close contact with each other can be opened to complete the tube-shaped plastic bag It is a very useful effect that can be packed by putting fruit in an automatic way.

Claims (1)

While unwinding the tubular plastic bag 2 wound around the bobbin 21 from the bobbin 21, open the plastic bag 2 having close contact with both inner surfaces to open the fruit 1 supplied from the fruit supply device 10. In the plastic bag spreader of the fruit packaging machine to be introduced into the plastic bag (2), In the center of the fruit packaging machine 100 is a rotary table 40 that is rotated in a click manner by the drive motor 43, the through-hole 41 is formed to penetrate up and down on the outer peripheral side of the rotary table 40 The through-hole 41 is provided with a pair of fruit filling movable hoppers 42 which are enclosed and opened by a cylinder. The frame 3 on one side of the rotary table 40 is provided with a bobbin 21 on which a tubular plastic bag 2 is wound and a guide roller 22 for guiding the plastic bag 2 released from the bobbin 21. , On one side of the rotary shaft tube 44, the rotary table 40 is installed horizontally, the "c" shaped frame 23, and then the support heater on the inner surface of the "c" shaped frame 23 of the rotary shaft tube 44 side (24) is installed, the other side "c" type frame 23 is provided with a sealing tool mounting bracket 25, the sealing tool mounting bracket 25 is moved back and forth to the cylinder 26 to seal the plastic bag (2) The sealing opening 27 and the cutting knife 28 which cut | disconnect are provided, respectively, In the frame 3 on the side of the "c" shaped frame 23, a vertical guide tube 29 having one side opened in the longitudinal direction and having a vertical guide rod 30 installed in the vertical direction on the outside thereof is vertically installed. The upper and lower pulleys 32 and 33 on which the timing belt 31 is wound are installed on the inner upper and lower portions of the 29, and the motor M is installed on the lower pulley 33, and one end of the vertical guide rod 30 is provided. A slider 34 having a connecting rod 35 fixed to the timing belt 31 is installed. On the other side of the slider 34, the horizontal bracket 36 is horizontally installed so as to face the space between the support heater 24 and the sealing opening 27, and one side of the horizontal bracket 36 is inclined inwardly. A pair of plastic bag spreading plates 37 are installed to face each other with a cylinder 38 having a short stroke length interposed therebetween, and a guide plate 39 is installed on the inner surface of the plastic bag spreading plates 37 on both sides. Become, The lower side is inclined downward in the same shape as the space between the two plastic bag opening plates 37 in the plastic bag 2 with the plastic bags 2 inserted therebetween between the two plastic bag opening plates 37. Forming the inclined portion (61), guide grooves (62) guided to the guide plate (39) on both sides, and the opening (60) formed with the handle groove (63) on the upper surface is characterized in that the seat is detachably inserted Plastic bag spreader of fruit packaging machine.