JP5602451B2 - Bag making and filling equipment - Google Patents

Description

  The present invention relates to a bag making and filling apparatus that manufactures a package by filling a filling material such as tea leaves while producing a bag by an ultrasonic sealing method or the like, such as a tea bag.

  As a bag making and filling device, for example, there is one described in Patent Document 1. In the bag making and filling apparatus 100, as shown in FIG. 6, a continuous sheet-shaped packaging material 101 is guided and overlapped by the chute member 103 while being sent in the vertical direction, and both end portions 105 of the packaging material 101 are vertically sealed. To be cylindrical. Then, the filling material 109 such as tea leaves weighed by the weighing device 107 falls naturally in the hopper 111 and the chute member 103 and is filled into the packing material filling portion 113, and the cylindrical packaging material 101 is laterally placed before and after that. The bag-shaped packaging body 115 that is sealed and has three sides sealed is sequentially manufactured.

JP 2008-150071 A

  However, in the conventional bag making and filling apparatus 100, since the filling object 109 is naturally dropped, the dropping speed varies depending on the shape of the filling object 109 and the like. Accordingly, the filling material 109 cannot be filled all at once, and the time until the filling material 109 is discharged from the weighing device 107 and completely filled in the packing material filling portion 113 (hereinafter, this time is referred to as filling time). Is inevitably long.

  Although it is possible to make the interval for performing horizontal sealing for forming the packaging material 101 into a bag shape shorter than the filling time described above, as long as the filling time of the filling material 109 is not shortened, the horizontal sealing is performed. There is a problem that the interval cannot be set short and the manufacturing speed of the package 115 cannot be increased.

  The present invention has been made paying attention to the above-mentioned conventional problems, and provides a bag making and filling apparatus that can shorten the filling time of an object to be filled and increase the production speed of a package such as a tea bag. That is the purpose.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and the invention of claim 1 includes a packaging material feeding means for superimposing a continuous sheet-shaped packaging material while feeding it in the vertical direction, and the packaging material feeding means. A vertical seal means for forming a vertical seal portion by performing vertical seal on both ends of the packaging material to be sent, and a horizontal seal on the upper and lower portions sandwiching the filling portion of the packaging material on which the vertical seal portion is formed. Horizontal sealing means for forming a sealing portion and a lower horizontal sealing portion; weighing means provided on the upper side of the filling portion for weighing and discharging a powdery filling material filled in the filling portion; and the weighing A bag making and filling apparatus comprising a chute member for guiding the filling material discharged from the means to the filling portion, and the filling material weighed by the weighing means is naturally placed between the weighing means and the filling portion. Than drop speed Comprising a filling means having a forced-on means to be introduced into the filling portion at a rate had, the forcing means, the outer peripheral surface of the rotary body rotating around a horizontal axis, a with product which has been weighed by said weighing means A storage recess is provided as a storage section that is temporarily stored and put into a lump shape before being charged into the filling section, and the rotating body rotates to fill the filling object stored in the storage recess. To enter the department,
The receiving recess extends in the horizontal direction at the receiving position of the filling material discharged from the weighing means, has a shape in which the rear end side in the rotation direction is a vertical wall and the front end side is opened. The bag-filling device is characterized in that an article to be filled is pushed by the vertical wall and falls at a speed faster than a natural fall speed .

The invention of claim 2 is the bag making and filling apparatus according to claim 1, the rotary body forms a disk shape having a thickness in the rotation axis direction, a plurality of reservoir is provided on the outer peripheral surface of the rotary body At the same time as the storage part storing the filling material moves to the charging position where the filling material is charged into the filling part, and the charging material is charged next to the storage part moving to the charging position. The bag making and filling device is characterized in that the storage section to be moved moves to a receiving position, which is a position for receiving an object to be filled discharged from the weighing means.

According to a third aspect of the present invention, there is provided the bag making and filling apparatus according to the first or second aspect , wherein a plurality of filling means are provided, and the plurality of filling means are connected to the filling portion of the filling object via one chute member. A bag making and filling apparatus that sequentially performs filling.

  According to the bag making and filling apparatus of the present invention, it is possible to shorten the filling time of an object to be filled and increase the production speed of a package such as a tea bag. Therefore, the manufacturing efficiency of the package can be improved.

1 is a front view of a bag making and filling apparatus according to an embodiment of the present invention. FIG. 2 is a side view of a charging unit as a filling means of the bag making and filling apparatus in FIG. 1. It is a perspective view of the principal part of the injection | throwing-in unit of FIG. It is a disassembled perspective view of the principal part of a making unit. It is a figure for demonstrating operation | movement of a making unit. It is a figure for demonstrating the conventional bag making filling apparatus.

A bag making and filling apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 3 denotes a device main body, and a weighing device 5 as a weighing means is provided above the device main body 3. The weighing device 5 has eight weighing units 11 arranged in parallel. Each weighing unit 11 measures a tea hopper 13 and a tea leaf T as a powdery filling material charged in the weighing hopper 13. It consists of fifteen.

Two funnel-shaped transport hoppers 17 and 19 are provided below the weighing device 5. In FIG. 1, the transport hopper 17 is arranged corresponding to the right four weighing units 11 among the eight weighing units 11, and the transport hopper 19 is arranged on the left four weighing units 11 among the eight weighing units 11. Correspondingly arranged.
Under the transport hoppers 17 and 19, charging units 21 and 23 as filling means, which will be described in detail later, are provided, respectively, and these charging units 21 and 23 are filled portions Bj of the packaging material S described later. Is located above.
A feeding chute 25 as a chute member extending in the vertical direction is provided below the transport hoppers 17 and 19.

The input chute 25 includes a hopper portion 25a and a straight portion 25b extending linearly from the lower end of the hopper portion 25a. A notch 26 is formed on the back surface of the hopper portion 25a.
The outer peripheral surface of the input chute 25 is a guide surface for guiding the packaging material S in a cylindrical shape. As the packaging material S, a heat-weldable material such as a nylon nonwoven fabric or a polyethylene fiber nonwoven fabric is applied.

Four opposing rollers 27 are provided in the vicinity of the straight portion 25 b of the charging chute 25, and two opposing rollers 27 are arranged on the back side of the charging chute 25 with two opposing rollers as one set. The two sets of opposed roller pairs 27 constitute a packaging material feeding means.
An ultrasonic sealing device 29 as vertical sealing means is provided between the two pairs of opposed rollers 27 in the vertical direction. The ultrasonic sealing device 29 is constituted by an ultrasonic horn 29a and a receiving roll portion 29b disposed to face the ultrasonic horn 29a.

Below the charging chute 25, an ultrasonic sealing device 31 as a horizontal sealing means is arranged. The ultrasonic sealing device 31 includes an ultrasonic horn 31a and a receiving roll portion 31b disposed to face the ultrasonic horn 31a.
The ultrasonic sealing device 31 is supported by a frame member 33 fixed to the device body 3 so as to be capable of reciprocating in the thickness direction of the paper (a direction orthogonal to the axial direction of the input chute 25).
A discharge chute 35 is provided below the apparatus main body 3.

A detailed configuration of the charging units 21 and 23 as filling means will be described with reference to FIGS.
Since the input units 21 and 23 have the same configuration, the configuration of the input unit 21 will be described, and the description of the configuration of the input unit 23 will be omitted by assigning the same reference numerals to the same components.
The charging unit 21 includes a rotation base 43, a pulley 45, a rotating body 47, a case 49, a cover 51, a motor 77, a pulley 79, a timing belt 81, and a guide chute 73.

As shown in FIG. 2, the rotation base 43 has a fixed portion 53 inserted and fixed through a horizontal shaft 41 fixed to the apparatus main body 3, and a rotation provided between the fixed portion 53 via a bearing structure. Part 55. The rotating portion 55 has a flange portion 57 for fixing the rotating body 47, and a plurality of screw insertion holes 57a are formed in the flange portion 57 (see FIG. 4).
The rotating body 47 has a disk shape having a thickness in the direction of the rotation axis, and the rotating body 47 is formed with a hole that fits into the rotating portion 55. The rotating body 47 is formed with a plurality of screw insertion holes 47a, and the rotating body 47 is integrally fixed to the rotating portion 55 by screws (not shown) through the screw insertion holes 47a and 57a.

Four accommodating recesses 63 as storage portions are formed on the outer peripheral surface of the rotator 47, and these accommodating recesses 63 are arranged at approximately 90 ° intervals. As shown in FIG. 2, each housing recess 63 has a shape extending in the horizontal direction in a state of being positioned at the receiving position Pr for the transport hopper 17. In addition, the vertical wall 65 is provided on the rear end side in the rotation direction, and the front end side has an open shape.
For the four receiving recesses 63, 63a, 63b, 63c, and 63d are attached to the receiving recesses 63 for the sake of convenience from the position at the receiving position Pr in the clockwise direction.
The place where the accommodation recess 63d is located is the loading position Pt.
The charging position Pt is a position at which the accommodating recess 63 storing the tea leaves T loads the tea leaves T into the filling part Bj as will be described later. In addition, the receiving position Pr is a position where the receiving recessed portion 63 into which the tea leaf T is loaded next to the receiving recessed portion 63 that moves to the loading position Pt receives the tea leaf T discharged from the weighing device 5 as will be described later.

A plurality of screw insertion holes 45 a are formed in the pulley 45, and the pulley 45 is screwed into the rotation part 55 by screws through a screw insertion hole 45 a and a screw insertion hole (not shown) formed in the rotation part 55 of the rotation base 43. It is fixed integrally.
The motor 77 is fixed to the apparatus main body 3, and the motor 77 is controlled to operate intermittently by a control means (not shown). A pulley 79 is fixed to the drive shaft of the motor 77, and a timing belt 81 is stretched between the pulley 79 and the pulley 45 described above.
The forcible input means includes a rotation base 43, a pulley 45, a rotating body 47, a motor 77, a pulley 79, a timing belt 81, and a control means (not shown).

The case 49 is fixed to the upper surface of the apparatus body 3, and the case 49 houses the rotating base 43 and the rotating body 47 together with the cover 51. An opening 67 is formed on the upper surface of the case 49, and this opening 67 faces the receiving recess 63a located at the receiving position Pr. The opening 67 is connected to the lower end of the transport hopper 17. An opening 69 is formed at a position rotated approximately 90 ° from the opening 67, and this opening 69 faces the accommodation recess 63d located at the loading position Pt.
A peripheral wall 71 exists between the opening 67 and the opening 69, and the peripheral wall 71 functions as a lid for the housing recess 63 during rotational transfer.
The guide chute 73 is connected to the opening 69 (see FIG. 2). The guide chute 73 extends obliquely downward, and the tip end portion enters the charging chute 25 through the notch 26.

Next, the operation of the bag making and filling apparatus 1 will be described.
The wrapping material S wound up in a roll shape is mounted on a feeding wheel (not shown), fed out at its starting end, guided by a guide roller (not shown), and guided along the outer surface of the charging chute 25.
The continuous sheet-like packaging material S is fed in the vertical direction by the upper facing roller pair 27 in a state of covering the outer surface of the charging chute 25, and is held in a state where the end portions are overlapped to form a cylindrical shape.
Next, the both ends of the packaging material S are vertically sealed by the ultrasonic horn 29a and the receiving roll portion 29b of the ultrasonic sealing device 29 to form a vertical seal portion.

The cylindrical packaging material S is sent by the lower opposed roller pair 27, and when the lower end of the packaging material S comes to a predetermined position below the charging chute 25, the ultrasonic horn 31a and the receiving roll of the ultrasonic sealing device 31 are used. The lower side seal portion is formed by being horizontally sealed by the portion 31b.
As will be described in detail later, the measured tea leaves T are discharged from the measuring unit 11 of the measuring device 5, and the tea leaves T are filled in the filling portion Bj of the packaging material S in a bag shape by the charging units 21 and 23. The

Then, the packaging material S is fed at a pitch corresponding to the height dimension of the tea bag B and is laterally sealed by the ultrasonic sealing device 31 to form the upper lateral seal portion. As a result, a bag-shaped tea bag B with three sides sealed is manufactured. This tea bag B drops through the central opening of the frame member 33 and passes through a discharge chute 35 provided below the apparatus body 3. It is discharged outside the machine.
An upper side seal portion is formed and a lower side seal portion on the lower side of the next bag is formed.
The tea bag B is sequentially manufactured by repeating the above-described operations such as filling of the tea leaves T and horizontal sealing by the ultrasonic sealing device 31.

The detailed operation of the input units 21 and 23 will be described.
An opening / closing door (not shown) of the weighing unit 11 above the transport hopper 17 is opened. The tea leaves T1 weighed by the load cell 15 are discharged from the weighing hopper 13 and dropped onto the transport hopper 17. The tea leaves T1 pass through the opening 67 of the charging unit 21, and are temporarily stored in the receiving recess 63a located at the receiving position Pr as shown in FIG. That is, the accommodation recess 63a located at the charging position Pr receives the tea leaves T1 discharged from the weighing hopper 13.
The motor 77 operates, and the rotational force of the motor 77 is transmitted to the rotating body 47 via the timing belt 81, the rotating base 43, etc., and the rotating body 47 is rotated counterclockwise in FIG. Rotate to.

The tea leaves T1 stored in the housing recess 63a are pushed by the vertical wall 65 by the rotation of the rotating body 47, and are transferred while being prevented from popping out by the peripheral wall 71 and moved to the loading position Pt as shown in FIG. 5B. Then, it is thrown toward the filling part Bj at a speed faster than the natural fall speed by the rotational force of the rotating body 47. That is, the accommodation recess 63a that stores the tea leaves T1 moves to the loading position Pt and throws the tea leaves T1 into the filling part Bj.
The input tea leaves T1 are guided by the guide chute 73 and the input chute 25, pass through the input chute 25 as a lump as shown in FIG. 5 (c), and form the bag-like packaging material S as described above. The filling part Bj is filled.
Thus, since the tea leaves T1 stored in the accommodation recess 63a are filled in the filling portion Bj at once in a lump shape, the tea leaves T can be reliably prevented from being bitten during the horizontal sealing by the ultrasonic sealing device 31.

In addition, the accommodation recess 63a moves to the insertion position Pt by the rotation of the rotating body 47, and at the same time, the accommodation recess 63b into which the tea leaves are introduced next to the accommodation recess 63a moves to the receiving position Pr.
The next tea leaf T2 is discharged from the weighing unit 11 above the transport hopper 17, and this tea leaf T2 is temporarily stored in the receiving recess 63b located at the receiving position Pr in the same manner as the tea leaf T1, and becomes a lump. The tea leaves T2 are transferred by the rotation of the rotating body 47, and when the tea leaves T2 are positioned at the charging position Pt, the tea leaves T2 are charged toward the filling portion Bj at a speed faster than the natural fall speed by the rotational force of the rotating body 47.
The same operation as described above is repeated, and the tea leaves T are successively put into the filling part Bj. That is, the rotating body 47 of the charging unit 21 is intermittently rotated by approximately 90 °, and the tea leaves T are sequentially charged into the filling part Bj.

  The input unit 23 sequentially inputs the tea leaves T into the filling section Bj in the same manner as the input unit 21 described above, but the timing at which the input unit 23 inputs the tea leaves T is the interval of the timing at which the input unit 21 inputs the tea leaves T. Is set in between. Accordingly, the charging unit 21 and the charging unit 23 alternately perform the charging of the tea leaves T into the filling part Bj via the single charging chute 25.

  As described above, the tea leaves T stored in the accommodation recess 63 are transferred by the rotation of the rotating body 47, and at the charging position Pt, the tea leaves T are transferred to the filling unit Bj at a speed faster than the natural fall speed by the rotational force of the rotating body 47. It is thrown toward. Moreover, the tea leaves T are filled in the filling portion Bj at a stretch while remaining in a lump shape. Therefore, the time until the tea leaves T are discharged from the measuring device 5 and completely filled in the filling portion Bj of the packaging material S, that is, the filling time can be shortened compared to the conventional case.

  Since the filling time can be shortened in this way, it is possible to increase the manufacturing speed of the tea bag B by setting the interval for performing the horizontal sealing of the ultrasonic sealing device 31 as short as possible. Therefore, the production efficiency of the tea bag B can be improved.

  As described above, four housing recesses 63 are formed on the outer peripheral surface of the rotating body 47, and these housing recesses 63 are arranged at intervals of approximately 90 °. The accommodation recess 63 is positioned at the loading position Pt by the rotation of the rotating body 47, and at the same time, the accommodation recess 63 where the tea leaf is charged next is positioned at the receiving position Pr. As a result, there is no waiting time from when the rotator 47 puts the tea leaf T into a state where the next tea leaf T can be stored, so the interval at which the tea leaf T is put in can be shortened.

In addition, since the charging unit 21 and the charging unit 23 alternately perform the charging of the tea leaves T into the filling part Bj through one charging chute 25, the tea leaves T are charged into the charging part Bj at very short intervals. be able to.
Note that when the rotating body 47 of the charging units 21 and 23 is rotated in the reverse direction, the tea leaves T stored in the receiving recess 63 are discharged through a discharging chute (not shown) provided below the charging units 21 and 23.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
In the above embodiment, the forcible introduction means is constituted by the rotating base 43, the rotating body 47, the motor 77, etc., and the storage portion is constituted by the housing recess 63. For example, the forcible introduction means is constituted by a piston and the storage portion is a cylinder. You may comprise by. In this case, the tea leaves T are temporarily stored in the cylinder, and the tea leaves T are thrown into the filling part Bj by the piston at a speed faster than the natural fall speed.
In the above embodiment, four accommodating recesses 63 are formed. However, three or less accommodating recesses 63 may be formed.
In the above embodiment, two input units are provided, but one or more input units may be provided.
In the above-described embodiment, the tea bag B is manufactured using the filling material as the tea leaf T. However, for example, the filling bag may be used as the cutting material pack for the bag.

  INDUSTRIAL APPLICABILITY The present invention can be used in the manufacturing industry of bag making and filling devices that manufacture packaging bodies such as tea bags.

DESCRIPTION OF SYMBOLS 1 ... Bag making and filling apparatus 3 ... Apparatus main body 5 ... Weighing apparatus 11 ... Weighing unit 13 ... Weighing hopper 15 ... Load cell 17, 19 ... Conveyance hopper 21, 23 ... Loading unit 25 ... Loading chute 26 ... Notch 27 ... Opposite roller 29 ... Ultrasonic sealing device 31 ... Ultrasonic sealing device 33 ... Frame member 35 ... Discharge chute 41 ... Horizontal shaft 43 ... Rotating base 45 ... Pulley 47 ... Rotating body 49 ... Case 51 ... Cover 53 ... Fixed portion 55 ... Rotating portion 57 ... Flange part 63 (63a-63d) ... accommodating recess 65 ... vertical wall 67, 69 ... opening 71 ... peripheral wall 73 ... guide chute 77 ... motor 79 ... pulley 81 ... timing belt T, T1, T2 ... tea leaf S ... packaging material Pr ... receiving position Pt ... loading position Bj ... filling section B ... tea bag

Claims (3)

Packaging material feeding means for superimposing a continuous sheet-like packaging material while feeding it in the vertical direction; and vertical sealing means for forming a vertical seal portion by performing vertical sealing on both ends of the packaging material fed by the packaging material feeding means; A horizontal sealing means for performing a horizontal seal on the upper and lower portions sandwiching the filling portion of the packaging material in which the vertical seal portion is formed to form an upper horizontal seal portion and a lower horizontal seal portion; and above the filling portion. Bag making and filling comprising weighing means for weighing and discharging a powdery filling material provided in the filling portion and a chute member for guiding the filling material discharged from the weighing means to the filling portion In the apparatus, between the weighing unit and the filling unit, a filling unit having a forcible loading unit that loads the filling material weighed by the weighing unit into the filling unit at a speed faster than the natural fall speed ,
The forced charging means is a storage part that temporarily stores an object to be filled measured by the weighing means on the outer peripheral surface of a rotating body that rotates about a horizontal axis before the filling part is put into the filling part. As an accommodation recess is provided, the rotating body rotates to feed an object to be filled stored in the accommodation recess to the filling unit,
The receiving recess extends in the horizontal direction at the receiving position of the filling material discharged from the weighing means, has a shape in which the rear end side in the rotation direction is a vertical wall and the front end side is opened. A bag making and filling apparatus, wherein an article to be filled is pushed by the vertical wall and falls at a speed faster than a natural fall speed . In the bag making and filling apparatus according to claim 1,
The rotating body has a disk shape having a thickness in the direction of the rotation axis, and a plurality of storing portions are provided on the outer peripheral surface of the rotating body, and the storing portion storing the filling material fills the filling material. Receiving that is a position for receiving the filling material discharged from the measuring means, at the same time as the storage unit that moves to the charging position, which is the position to be charged into the unit, and the storage unit that is moved to the charging position, is next to the storage unit. A bag making and filling device that moves to a position . In the bag making and filling apparatus according to claim 1 or 2,
A bag making and filling apparatus , wherein a plurality of filling means are provided, and the plurality of filling means sequentially fills the filling portion of the filling material through one chute member .

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