JP5410913B2 - Bag making and filling equipment - Google Patents

Description

  The present invention relates to a bag making and filling apparatus used for manufacturing a package such as an extraction bag filled with tea leaves and the like.

In the bag making and filling apparatus, as shown in Patent Document 1, a continuous sheet-shaped packaging material is conveyed in a state where both side edges are overlapped, and during that time, both side edges are sealed and formed into a cylindrical shape. Then, the packaging body in which the three sides are sealed is sequentially manufactured by sealing in the direction intersecting with the sealing direction before and after the filling process of tea leaves and the like.
In this type of bag making and filling apparatus, the conveying means is usually composed of two sets of roller pairs arranged on the front and rear in the conveying direction with a seal portion for making a cylindrical shape interposed between both ends of the package. The edge side is sandwiched between a pair of rollers.

JP 2004-123150 A

By the way, the roller pair described above is rotated by receiving a rotational driving force from the motor. However, in the bag making and filling apparatus, the power is turned off and the operation is completely stopped when the cover for closing the inside of the apparatus is opened in consideration of safety. It is like that.
Thus, before the bag making and filling operation is started, the packaging material must be sandwiched between the pair of rollers, and this sandwiching operation is performed by opening the cover.
Therefore, conventionally, a motor is provided separately from the normal bag filling and filling operation, and the other motor is operated intermittently by operating with one hand to rotate the roller pair appropriately, and with the other hand. The packaging material was sandwiched between a pair of rollers. However, in such an operation, the roller pair is automatically rotated even at a low speed, so that it is difficult for unskilled and unskilled workers to pinch the packaging material well, It was easy to get caught between the roller pairs, and it was dangerous.

  The present invention has been made paying attention to the above-described conventional problems, and an object thereof is to provide a bag making and filling apparatus that can completely and safely sandwich a packaging material between a pair of rollers. And

The present invention has been made in order to achieve the above object , and the invention of claim 1 includes a conveying means for conveying a continuous sheet-shaped packaging material in a state of sandwiching both side ends thereof, and the conveying means. In the bag making and filling apparatus provided with a driving means for driving and a sealing means for sealing both side ends of the packaging material into a cylindrical shape, the conveying means is disposed on both sides in the conveying direction across the sealing means. Each pair of rollers is composed of a drive feed roller and a driven feed roller that are arranged in opposite directions, and the drive means rotates with a rotational drive force from the motor side integrally with one roller of each of the roller pairs. an electric drive means for transmitting to the support shaft, a manual drive means for transmitting rotational driving force from the manual operation unit side to the support shaft, drive for rotating by the rotational driving force from the motor side and the manual operation unit side And a power transmission means for transmitting power from the drive shaft to one support shaft of each pair of rollers, wherein the manual operation unit includes a bevel gear provided on the drive shaft, and a bevel gear meshed with the bevel gear The bag making and filling device is characterized in that a reverse rotation preventing means is interposed between the drive shaft side bevel gear and the drive shaft .

  According to the bag making and filling apparatus of the present invention, a packaging material can be sandwiched between a pair of rollers completely and manually.

It is a schematic front view of the bag making and filling apparatus according to the embodiment of the present invention. It is the perspective view which looked at the support base of the bag making filling apparatus of FIG. 1 from the front side. It is the perspective view which looked at the support base of the bag making filling apparatus of FIG. 1 from the back side. It is sectional drawing of the drive shaft part of the conveyance means of FIG.

A bag making and filling apparatus 1 according to an embodiment of the present invention will be described with reference to the drawings.
The bag making and filling apparatus 1 is an apparatus for producing an extraction bag B filled with tea leaves such as black tea as an example of a package, and is a vertical type. Therefore, the conveyance direction of the packaging material S is also the vertical direction.
First, the overall configuration of the bag making and filling apparatus 1 will be schematically described with reference to FIG.
Reference numeral 3 denotes an apparatus main body, and the front side of the apparatus main body 3 is opened and closed by a safety cover (not shown). A measuring unit 5 is provided on the upper part of the apparatus body 3. A hopper 7 is provided on the upper part of the apparatus main body 3, and tea leaves measured by the measuring unit 5 are put into the hopper 7.

In the apparatus main body 3, a cylindrical supply chute 9 having an upper end connected to the hopper 7 extends in the vertical direction. The outer peripheral surface of the supply chute 9 is a guide surface of a continuous sheet-shaped packaging material S. On the back side of the supply chute 9, two pairs of rollers 11 are arranged at a predetermined interval in the vertical direction.
A vertical sealing means 13 for sealing and cutting using ultrasonic waves is provided between the two pairs of rollers 11 in the vertical direction. The vertical sealing means 13 is constituted by an ultrasonic horn 15 and a receiving roll 17.
A separator plate 61 of the separating means 59 is disposed between the two pairs of rollers 11 below the vertical sealing means.
Below the supply chute 9, a horizontal sealing means 21 for sealing and cutting using ultrasonic waves is provided. The horizontal sealing means 21 is also composed of an ultrasonic horn and a receiving roll, like the vertical sealing means 13. Reference numeral 23 denotes a discharge chute, through which the extraction bag B manufactured in the apparatus main body 3 is discharged outside the apparatus.

Next, the structure of the roller pair 11 as a conveying means will be described with reference to FIG.
The roller pair 11 includes a driving feed roller 25 and a driven feed roller 27 that are arranged side by side in the horizontal direction, and the outer peripheral surfaces of the two feed rollers 25 and 27 face each other in close proximity to each other.
Since two pairs of roller pairs 11 are provided at predetermined intervals in the vertical direction, hereinafter, when it is necessary to distinguish between them, they are referred to as an upper roller pair 11A and a lower roller pair 11B.
Each roller pair 11 rotates in the opposite direction so as to convey the packaging material S from the upper side to the lower side in the vertical direction. Note that the packaging material S is pulled with a predetermined tension between the upper roller pair 11A and the lower roller pair 11B.

Next, the structure of the drive means for driving the upper roller pair 11A and the lower roller pair 11B will be described with reference to FIGS.
Reference numeral 29 denotes a plate-like support base. The support base 29 is mounted in the apparatus main body 3 and the plate surface faces the front and the back. The support base 29 is provided with four bearings 31. The two bearings 31 arranged in the horizontal direction constitute one set, and the two sets of bearings 31 are provided at predetermined intervals in the vertical direction.
Reference numeral 33 denotes a support shaft, and each support shaft 33 is inserted into each bearing 31 and is rotatably supported. Corresponding to the bearings 31, the support shafts 33 are also arranged in a horizontal direction to form a set, and the two sets of support shafts 33 are provided in the vertical direction at a predetermined interval. Both end portions of each support shaft 33 protrude from the front side and the back side of the support base 29, respectively.

As shown in FIG. 2, the upper roller pair 11 </ b> A is fitted and fixed to a portion protruding to the front side of the upper support shafts 33 and 33. One drive feed roller 25 of the upper roller pair 11A is fitted and fixed to the left support shaft 33, and the other driven feed roller 27 of the upper roller pair 11A is fitted and fixed to the right support shaft 33. Has been. Similarly, the driving feed roller 25 and the driven feed roller 27 of the lower roller pair 11B are fitted and fixed to the lower support shafts 33 and 33, respectively. Thus supported, the two feed rollers 25 and 27 of each roller pair 11 are close to each other while facing each other.
An ultrasonic horn 15 and a receiving roll 17 of the vertical sealing means 13 are disposed between the upper roller pair 11A and the lower roller pair 11B, but the illustration is omitted for the convenience of visual recognition.

Next, driving means for the roller pair 11 will be described.
As shown in FIG. 3, the drive gear 35 and the driven gear 37 are fitted and fixed to the rear portions of the upper support shafts 33 and 33, respectively. The drive gear 35 and the driven gear 37 are meshed with each other. doing. A drive gear 35 is opposed to the drive feed roller 25 side, and a driven gear 37 is opposed to the driven feed roller 27 side. A driven pulley 39 is fitted and fixed to the support shaft 33 to which the drive gear 35 is fitted and fixed.
Similarly, the drive gear 35, the driven gear 37, and the driven pulley 39 are fitted and fixed to the lower support shafts 33 and 33.

Reference numeral 41 denotes a drive shaft that receives a rotational drive force from a motor (not shown) and rotationally drives the drive shaft 41. The drive shaft 41 is also rotatably supported by a bearing provided on the support base 29. The drive shaft 41 is disposed on the driven gears 37 and 37 side.
A drive pulley 43 is fitted and fixed to the drive shaft 41. Reference numeral 45 denotes a timing belt. The timing belt 45 is wound around the drive pulley 43 and the two driven pulleys 39 in a substantially triangular shape.

Reference numeral 47 denotes a drive shaft side bevel gear, and this drive shaft side bevel gear 47 is attached to the drive shaft 41 side. As shown in FIG. 4, the drive shaft side bevel gear 47 is attached to the drive shaft 41 via a one-way clutch 49 as a reverse rotation preventing means.
A plate-like auxiliary base 51 is connected to a side edge closer to the drive shaft 41 among both side edges of the support base 29. When viewed from the back side, the angle between the auxiliary base 51 and the support base 29 is as follows. It is slightly larger than 90 °.
Reference numeral 53 denotes an operation shaft. The operation shaft 53 is rotatably inserted into the auxiliary base 51, and both end portions thereof protrude from the front side and the back side, respectively.
As shown in FIG. 2, an operation handle 55 is attached to the end portion protruding to the front side. Further, as shown in FIG. 3, an operation shaft side bevel gear 57 is fitted and fixed to the end side protruding to the back side. The operation shaft side bevel gear 57 and the drive shaft side bevel gear 47 are meshed with each other.

In addition, the separating means indicated by reference numeral 59 is provided between the conveying means having the above-described configuration, and the separator plate 61 is disposed below the vertical sealing means 13 and is packaged by the vertical sealing means 13. After S is sealed and cut, the cylindrical package and the two side edges, that is, the ears, are separated on both sides of the separator plate 61. The separator plate 61 is rotatably supported by the mounting fin 69 so that it can be turned with a finger when the power of the bag making and filling apparatus 1 is turned off.
Reference numeral 89 denotes a suction pipe of the suction means, and the suction pipe 89 extends below the support base 29.

Next, the driving operation of the roller pair 11 will be described.
When the power of the bag making and filling device is turned off, the motor side is in a passive state.
In this state, when the operation handle 55 is turned in the direction of the arrow, the drive shaft 41 rotates via the operation shaft side bevel gear 57, the drive shaft side bevel gear 47 and the one-way clutch 49. The rotational force of the drive shaft 41 is transmitted from the drive pulley 43 to the support shaft 33 via the timing belt 45 and the driven pulley 39 on the support shaft 33 side, and rotates. The remaining opposing support shafts 33 are also transmitted with rotational force through gear meshing and rotate in opposite directions as indicated by arrows. Accordingly, the upper roller pair 11A and the lower roller pair 11B rotate in opposite directions as indicated by the arrows so as to send the packaging material S sandwiched therebetween downward.

  In addition, when the drive shaft 41 is rotated by receiving a rotational driving force from the motor side, the upper roller pair 11A and the lower roller pair 11B lower the packaging material S sandwiched therebetween in the same manner as described above. Rotate to send out. An operation shaft 53 is connected to the drive shaft 41 via bevel gears 47 and 57, but since a one-way clutch 49 is interposed, the rotational drive force from the motor side is smoothly transmitted to the drive shaft 41. The

Next, the sandwiching operation of the packaging material S performed before the bag making filling operation will be described.
First, the separator plate 61 is pushed with a finger so that the separator plate 61 is retracted to a position outside the transport path of the packaging material S so as not to interfere with the sandwiching operation.
Next, grasp the overlapped portion of both side ends of the packaging material S with the left hand, rotate the operation handle 55 with the right hand and rotate the roller pair 11A, 11B as appropriate, and sandwiched between the rollers of the roller pair 11A from above, Further, it extends downward and is sandwiched between the rollers of the roller pair 11B.

After the sandwiching operation, the bag making and filling apparatus 1 is turned on to automatically perform the bag making and filling operation.
When the power of the bag making and filling apparatus 1 is turned on, the separator plate 61 automatically returns to a predetermined work position.
The packaging material S is vertically fed in a state in which both side ends are sandwiched by the conveying means, and is formed into a cylindrical shape by the vertical sealing means 13, and both side ends, ie, ears, as the cylindrical portion and chips are separators. Separated on both sides of the plate 61. Next, after the bottom is formed by the horizontal sealing means 21 and filled with tea leaves, it is further fed longitudinally and sealed by the horizontal sealing means 21, and the packaging body in which the three sides are sealed is sequentially manufactured. It is discharged out of the plane. The side edges separated by the separator plate 61 are sucked into the suction pipe 89 and collected separately.

  As described above, in the sandwiching operation of the packaging material S, manual drive means using the operation handle 55 as a drive source is used when the bag making and filling apparatus 1 is turned off, and in the bag making and filling operation, the motor is used as the drive source. Use drive means.

  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.

  The bag making and filling apparatus of the present invention can safely perform the manufacturing operation of an extraction bag or the like.

DESCRIPTION OF SYMBOLS 1 ... Bag making and filling apparatus 3 ... Apparatus main body 5 ... Measuring part 7 ... Hopper 9 ... Supply chute 11A, B ... Roller pair 13 ... Vertical seal means 21 ... Horizontal seal means 23 ... Discharge chute 25 ... Drive feed roller 27 ... Driven feed Roller 29 ... Support base 31 ... Bearing 33 ... Support shaft 35 ... Drive gear 37 ... Drive gear 39 ... Drive pulley 41 ... Drive shaft 43 ... Drive pulley 45 ... Timing belt 47 ... Drive shaft side bevel gear 49 ... One-way clutch 51 ... Auxiliary Base 53 ... Operation shaft 55 ... Operation handle 57 ... Operation shaft side bevel gear 61 ... Separator plate 89 ... Suction pipe S ... Packaging material B ... Extraction bag

Claims (1)

Conveying means for conveying a continuous sheet-shaped packaging material in a state where both side ends are sandwiched, a driving means for driving the conveying means, and a seal for sealing the both side ends of the packaging material to form a cylinder In a bag making and filling apparatus provided with means,
The transport means is a roller pair composed of a driving feed roller and a driven feed roller that are arranged on both sides in the transport direction with the seal means interposed therebetween, and that rotate in opposite directions.
The driving means transmits the rotational driving force from the motor side to a support shaft that rotates integrally with one roller of each roller pair, and transmits the rotational driving force from the manual operation unit side to the support shaft. Manual drive means , a drive shaft that is rotationally driven by rotational drive force from the motor side and the manual operation unit side, and a power transmission means that transmits power from the drive shaft to one support shaft of each roller pair,
The manual operation unit includes a bevel gear provided on the drive shaft and an operation shaft including a bevel gear meshed with the bevel gear, and the bevel gear on the drive shaft side is between the drive shaft and the drive shaft. A bag making and filling device, characterized in that reverse rotation preventing means is interposed .

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