JP3012232B1 - Packaging paper welding equipment - Google Patents

Abstract

An object of the present invention is to provide a packaging paper welding apparatus that consumes less power, is economical, and has high safety. SOLUTION: An ultrasonic welding mechanism 11 of a packaging paper welding device 6 for welding the packaging paper 3 is provided between a horn 15 movable along the surface of the packaging paper 3 and the horn 15. A receiving jig 16 for holding the packaging paper 3 is provided, and the welding portion forming member 40 and the perforation forming portion 41 of the receiving member 16 are adjusted in position in a direction approaching and separating from the horn 15. Adjustment screws 53 are provided. Further, the base end 53a of the adjusting screw 53 is
To project outward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging paper welding apparatus for welding a band of packaging paper at regular intervals to form a plurality of packets for enclosing tablets and powdered medicine.

[0002]

2. Description of the Related Art As is well known, in pharmacies, clinics, and the like, tablets and powdered medicines are often provided in a predetermined amount enclosed in a paper package. Such a package is
A plurality of band-shaped packaging papers are formed by welding and dividing, and a packaging paper welding apparatus is used for this.

Conventionally, this type of packaging paper welding apparatus includes:
A method using a roll heater and a stamp method using a surface heater are known.

In the roll heater system, a band-shaped wrapping paper is sandwiched between a pair of metal roll heaters, and both roll heaters are rotated to form a welded portion at a relatively high pressure and temperature. It is used to seal tablets and powder. In this method, band-shaped wrapping paper is welded at regular intervals in order to separate between the preceding and following packaging bodies to form a welded portion extending perpendicular to the direction in which the wrapping paper is continuous. It has become. Further, there is a type in which a sewing blade is formed integrally with the roll-shaped heater, and perforations for separating the packaging paper for each packaging body are formed at regular intervals. According to this method, a predetermined welded portion and perforations are formed each time the roll-shaped heater makes one rotation, so that the width of one package is determined, and this cannot be changed. Was.

[0005] On the other hand, in the stamp method, a band-shaped wrapping paper is sandwiched between a metal surface heater and a receiving surface made of an elastic material such as silicon rubber, and a predetermined pressure and temperature are applied at a predetermined temperature. This is for welding the welded portion. In this method, perforations having a function of forming perforations are formed by perforation blades provided on the surface heater side. According to the stamp-type packaging paper welding apparatus, by appropriately adjusting the feeding width of the band-shaped packaging paper,
A welded portion (and a perforation) can be formed at an arbitrary position within the range of the length of the surface heater.

[0006]

However, the conventional packaging paper welding apparatus as described above has the following problems.

When used in pharmacies, clinics, etc., the consultation time (for example, from 8:00 am to 6:00 pm)
In the meantime, the packaging paper welding apparatus is always operated and does not continue to manufacture the packaging body. That is, originally, it is sufficient to operate only when it is necessary to provide a medicine to a patient based on a prescription of a doctor or the like. About two hours. In the conventional stamping method, thermocompression bonding is performed using a surface heater (including a cartridge heater), and in the roll heater method, thermocompression bonding is performed using a cartridge heater. was there. Therefore,
Even when the package is not manufactured, the power of the packaging paper welding apparatus must be turned on, which causes a problem of high power consumption.

Further, the surface heater used in the conventional stamping method does not immediately return to a normal temperature from a high temperature of 150 ° C. even if the power is turned off, but requires a predetermined time until the heat is cooled. Similarly, in the case of the cartridge heater, even when the power is turned off, the temperature does not immediately return to the normal temperature. Therefore, for example, when the packaging paper is used up and replaced with a new one during operation, it has been necessary to be careful not to accidentally touch the heater where heat remains.

The present invention has been made in consideration of the above points, and has as its object to provide a packaging paper welding apparatus which consumes less power, is economical, and has high safety.

[0010]

The invention according to claim 1 is
What is claimed is: 1. A packaging paper welding apparatus for welding a band-shaped packaging paper to form a plurality of medicine-encapsulated packaging bodies, wherein said packaging paper is orthogonal to a direction in which said packaging paper is continuous and along a surface of said packaging paper. Ultrasonic welding means having an ultrasonic vibration transmitting member which is movable in the same direction and transmits ultrasonic vibration, and a receiving jig which holds the packaging paper between the ultrasonic vibration transmitting member and the ultrasonic vibration transmitting member. The receiving jig is provided with a welding forming section for welding the packaging paper, a casing for holding the welding forming section, and a bias for urging the welding forming section toward the ultrasonic transmission member. It is characterized by comprising a member and an adjusting member that adjusts the position of the weld forming portion in a direction approaching or moving away from the ultrasonic transmission member.

Thus, for example, when a band-shaped wrapping paper is folded and used, the ultrasonic vibration transmission is performed at the joint opposite to the fold of the wrapping paper conveyed in the extending direction of the fold. Place the part. Also, for example, when two strip-shaped sheets of paper are overlapped with each other, the sheet of paper is transported in a direction in which the sheets of paper are continuous, and the sheets of paper on both sides are aligned with respect to the transport direction. The ultrasonic vibration transmission unit is placed on the eye. If the packaging paper is transported with the ultrasonic vibration transmitting section arranged at the seam of the packaging paper in this way, the seam of the packaging paper is ultrasonically welded along the direction in which it is continuous. Can be. Also, by moving the ultrasonic vibration transmission unit in a direction perpendicular to the direction in which the packaging paper is transported, the packaging paper between the receiving jig and the welding forming unit can be ultrasonically welded. Since the adjusting member is provided for adjusting the position of the welding portion in the direction of approaching / separating from the ultrasonic transmission member, the distance between the ultrasonic transmission member and the welding portion, the superposition of the welding portion by the urging member, It is possible to adjust the pressing force and the like on the sound wave transmitting member side.

[0012] The invention according to claim 2 is the packaging paper welding apparatus according to claim 1, wherein the receiving jig is provided with a pair of the welding forming portions and between the welding forming portions. Is provided with a perforation forming portion for forming a perforation in the packaging paper, and the pair of two welding forming portions and the perforation forming portion are provided independently, and It is characterized in that a biasing member and an adjusting member are provided.

[0013] Thus, when the wrapping paper is welded by the welding forming section, perforations can be formed between adjacent wrappers. The two pairs of welding forming portions and perforation forming portions are independently provided, and each of them is provided with an urging member and an adjusting member. Pressure and the like can be changed.

The invention according to claim 3 is the invention according to claim 1 or 2
The packaging paper welding apparatus according to claim 1, wherein the ultrasonic welding means is housed in a cover provided with an entrance / exit for the packaging paper, and an end of the adjustment member is exposed on an outer peripheral surface of the cover. It is characterized by being provided.

Thus, the adjusting member can be adjusted from outside the cover.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a packaging paper welding apparatus according to an embodiment of the present invention; FIG. FIG. 1 shows an automatic medicine dividing and packaging machine. In this figure, reference numeral 1 denotes a medicine inlet provided at the upper part of the packing machine and having a medicine dividing function, 2 denotes a hopper provided below the medicine inlet 1 of the packing machine, and 3 denotes a hopper provided around the core. A folded strip-shaped wrapping paper, 4 is a wrapping paper roll around which the wrapping paper 3 is wound in a roll, and 5 is a wrapping paper roll 4.
And a roll holding unit 6 for feeding the band-shaped wrapping paper 3 therefrom, and a wrapper 6 arranged near the tip of the hopper 2 for welding the band-shaped wrapping paper 3 fed from the roll holding unit 5. 1 shows a welding device.

As shown in FIG. 2, the separating paper welding device 6 comprises:
In the state of being folded in two, the welding portion (seam; not shown) of the band-shaped packaging paper 3 conveyed in a continuous direction (the direction in which the fold extends) is welded to enclose tablets and powder. A plurality of packages are formed, and a perforation is formed in the welded portion to separate each package. The transport means 10 for transporting the package 3 and the superposition of the package 3 An ultrasonic welding mechanism (ultrasonic welding means) 11 for performing ultrasonic welding.

The transport means 10 includes a motor 12 (see FIG. 1).
The driven roller 13 is rotated by the rotation of the driven roller 13 and a driven roller 14, and the separating paper 3 is sandwiched between the driven roller 13 and the driven roller 14. The driven roller 14 is connected to the driving roller 13 via a gear or the like.
The drive roller 1 is connected to a rotary shaft (not shown) of
With the rotation of No. 3, it is driven to rotate.
Further, the driven roller 14 sandwiches the packaging paper 3 between the driven roller 13 and the driven roller 13 in a state where the driven roller 14 is urged toward the driving roller 13 by an urging means (not shown) such as a spring.

As shown in FIGS. 2 and 3, the ultrasonic welding mechanism 11 includes an ultrasonic oscillator (not shown) and an ultrasonic vibrator (not shown), and a horn (not shown) for transmitting the ultrasonic vibration generated by these elements. An ultrasonic vibration transmitting member) 15 and a receiving jig 16 for holding the packaging paper 3 between the horn 15 and the horn 15 and the receiving jig 16.
Are housed in the cover 17.

The cover 17 has a base 17a fixed to the base plate 7 on the side of the packaging machine, and a lid 17b rotatably connected via an axis at one end of the base 17a.
The lid portion 17b is provided with a lock member 17c.
Thereby, it can be fixed to and released from the base portion 17a.

The horn 15 is provided on the side of the base portion 17a, is equivalent to an ultrasonic plastic welder, and has a frequency (for example, 30 kHz) necessary for welding the wrapping paper 3.
z) and an amplitude (for example, 20 μmp to p).

The horn 15 extends along the surface of the packaging paper 3 and perpendicular to the direction in which the packaging paper 3 is continuous (in FIG. 2, perpendicular to the drawing, and in FIG. 3, in the vertical direction). It is configured to be moved to. That is, as shown in FIG. 4, a horn drive mechanism 21 for driving the horn 15 includes a rotary shaft 22 connected to a drive shaft of a drive motor.
And a cam 24 connected to the rotating shaft 22 via a gear and a bevel gear 23, and a slider 25 holding the horn 15.
And a link rod 26 disposed between the cam 24 and the slider 25. Slider 25
Are movably provided along a guide rail 27 provided in parallel with the moving direction of the horn 15. And
One end of a link rod 26 is rotatably connected to the slider 25 via a shaft 26a. This link rod 2
Reference numeral 6 denotes a sliding member 26c, the other end of which is rotatably connected to the base plate 7 via a shaft 26b.
Are in contact with the outer peripheral surface of the cam 24.

In such a horn drive mechanism 21, when the rotary shaft 22 is driven to rotate by the drive motor, the cam 24 rotates. Then, the sliding member 26c is
4 slides following the shape of the outer peripheral surface of the
Rotates about the shaft 26b side, and as a result, the shaft 26a
Side slider 25 moves along the guide rail 27,
As a result, the horn 15 reciprocates in a direction orthogonal to the direction in which the wrapping paper 3 continues. And
To allow the horn 15 to reciprocate, the base plate 7
Is formed with a through hole 30.

Further, as shown in FIG.
On the side, there is provided a packaging paper holding mechanism 31 that receives and separates the packaging paper 3 from the jig 16 side. The wrapping paper pressing mechanism 31 includes a pressing member 32 and a pressing driving mechanism 33 that receives the pressing member 32 and drives it toward and away from the jig 16.

The holding member 32 has a U-shape when viewed from the side, and is provided with a holding wall 32a opposed to the receiving jig 16.
And a side wall 32b extending from both ends of the holding wall 32a to the base plate 7 side. Holding wall 3
To make the horn 15 movable in 2a, the horn 15
The hole 34 is formed in a rectangular shape in a plan view along the moving direction. As shown in FIGS. 3 and 5, the pressing member 32
The cover 17 is movably connected to a holding portion 35 projecting from the base portion 17a toward the internal space so as to move toward and away from the receiving jig 16 (see FIG. 3). That is, as shown in FIG. 5, the holding portion 35 has a dovetail groove 35a extending in the above-described direction and gradually increasing in diameter from the opening.
Are formed, and the side wall portion 32b has an ant-hozo shape that fits into the dovetail groove 35a. Thereby, the pressing member 32
Is held movably in a direction approaching / separating from the receiving jig 16.

As shown in FIG.
A cam 37 provided integrally with the rotating shaft 22, a tilting plate 38 having one end rotatably supported around the axis of the shaft 38 a and the other end abutting against the side wall 32 b of the pressing member 32,
A spring 39 is provided between an intermediate portion of the tilt plate 38 and the base plate 7 and biases the tilt plate 38 toward the base plate 7. The cam 37 has a rotating shaft 22.
Sliding surface 37a having a large radius with respect to
A sliding surface 37b having a radius smaller than 7a is formed.

In such a pressing drive mechanism 33, the rotating shaft 22 rotates in synchronization with the driving of the horn driving mechanism 21,
As a result, when the sliding surface 37b of the cam 37 comes into contact with the tilt plate 38, the tip of the tilt plate 38 moves toward the receiving jig 16 by the urging force of the spring 39, and the pressing member 3
The second holding wall portion 32a is pressed to come into contact with the separating paper 3. When the sliding surface 37a of the cam 37 comes into contact with the tilt plate 38, the tip of the tilt plate 38 moves in a direction away from the receiving jig 16 side, and the pressing member 32
Is released from contact with the wrapping paper 3.

As shown in FIG. 6, the receiving jig 16 comprises a pair of welding portion forming members (welding forming portion) 40 for welding the packaging paper 3 and a space between these two welding portion forming members 40. , A perforation forming member (perforation forming portion) 41 for forming perforations in the packaging paper 3, and a casing 42 holding the welding portion forming member 40 and the perforation forming member 41. Have been.

The casing 42 has a bottom 42a fixed to the cover 17b of the cover 17 by bolts or the like (not shown). The casing 42 is formed with a concave portion 43 having a rectangular cross section on the side facing the horn 15, and the pair of two welding portion forming members 40 and the perforation forming member 41 are housed in the concave portion 43. Have been.

As shown in FIG. 7, each welding portion forming member 40
Extends in a direction orthogonal to the continuous direction of the packaging paper 3, and a top 40 a serving as a contact portion with the packaging paper 3 has a convex curved cross-sectional profile. As shown in FIG. 8, corrugated irregularities 44 in which a concave shape and a convex shape are alternately continuous are formed on the top portion 40a.

As shown in FIG. 7, the perforation forming member 4
1 has a chevron shape which is continuous in a direction parallel to the welding portion forming member 40 and has an inverted V-shaped cross section,
a contacts the packaging paper 3. As shown in FIGS. 7 and 9, the ridge 41 a is formed with a plurality of notches 45 formed by removing the ridge 41 a at predetermined intervals along a direction in which the ridge 41 a is continuous. The cutout 45 is formed only at the end of the wrapping paper 3 on the fold side, and is not formed at the other end of both ends of the ridge 41a.

As shown in FIGS. 7 to 9, the pair of welding portion forming members 40 and the perforation forming members 4 are formed.
At both ends of the lower surface of 1, the lower portion is cut off to form a step 46,
The stepped portions 46 and 47 are formed of adjacent members (the stepped portion 46 formed on the welding portion forming member 40 is formed on the perforated forming member 41 and the perforated forming member 41 adjacent thereto. The stepped portion 47 prevents interference with a bottom bush (described later) of the welding portion forming members 40) on both sides adjacent thereto.

As shown in FIGS. 10 to 13, a hole 50 penetrating through the recess 43 is formed in the bottom 42 a of the casing 42.
Two portions are formed at positions corresponding to the welding portion forming member 40 and the perforation forming member 41, respectively. FIG.
13, a bottom bush 51, a spring (biasing member) 52, and an adjustment screw (adjustment member) 53 are housed in each hole 50.

The bottom bush 51 is formed of a material having a low coefficient of friction, such as Teflon, for example.
It comes into contact with the bottom surface of the perforation forming member 41. At this time, each bottom bush 51 is prevented from contacting the adjacent welding portion forming member 40 or the perforation forming member 41 by the step portions 46 and 47 described above. Further, the spring 52 is mounted in a compressed state, and the welding portion forming member 4 is
0, the perforation forming member 41 is urged toward the horn 15 (see FIG. 6).

The adjusting screw 53 is engaged with a screw portion formed on the inner peripheral surface of the hole 50, and the base end portion 53 a of the adjusting screw 53 extends outward from the cover 17 through a hole formed in the cover 17 a of the cover 17. It protrudes, and the lock nut 5
4 are attached as needed. An engagement groove 55 for engaging a tool such as a driver is formed on the base end 53 a of the adjustment screw 53. When the adjusting screw 53 is rotated by engaging a tool in the engaging groove 55, the adjusting screw 53 advances and retreats in the hole 50, thereby causing the welding portion forming member 40 and the perforation forming member 41 to move from the casing 42. The protrusion size or the urging force (the pressing force to the horn 15 side) of the welding portion forming member 40 and the perforation forming member 41 can be adjusted. In addition, the adjustment can be performed from outside the cover 17 because the base end 53a of the adjustment screw 53 projects outside the cover 17.

Further, as shown in FIGS. 6 and 10, two long sides of the casing 42
For example, three holes 56 penetrating through 3 are provided, and a rod-shaped side bush 57 made of a material having a low coefficient of friction such as Teflon is inserted into each hole 56. Further, a side plate 58 for holding down the side bush 57 is fixed to each side surface of the casing 42 with bolts or the like. In this state, each side bush 57
The tip portion projects into the internal space of the concave portion 43 and abuts against the side surface in the long side direction of the welding portion forming member 40, so that the side surface of the welding portion forming member 40 does not contact the casing 42. .

As shown in FIGS. 10 and 11, holes 59 are formed on the side surface of the casing 42 in the short side direction at positions corresponding to the respective welded portion forming members 40. Inside, a spherical end bush 60 made of a material having a low coefficient of friction such as Teflon is used.
Is inserted. A U-shaped end plate 61 is fixed to the side surface of the casing 42 with bolts or the like. In this state, each end bush 60 has its end protruding into the internal space of the concave portion 43, and
Of the welding portion forming member 40 so as not to contact the casing 42.

Also, a pair of welding portion forming members 40, 4
A disc-shaped spacer 62 is provided between the first perforation 0 and the perforation forming member 41. Each spacer 6
2 is made of a material having a low coefficient of friction such as Teflon, for example, and has a hole (not shown) formed in the center thereof. A pin or a projection (not shown) having a smaller diameter than the hole is provided on each of the side surfaces of the welding portion forming member 40 and the perforation forming member 41 at a position corresponding to the hole of the spacer 62. Prevents shedding.

In the receiving jig 16 having such a configuration, the welding portion forming member 40 and the perforation forming member 41 are respectively held by the casing 42 via the spring 52, and each of them independently approaches the horn 15. It is movable in the direction of separation. In addition, only the bottom bush 51, the side bush 57, the end bush 60, and the spacer 62 formed of a material having a low coefficient of friction come into contact with each of the welding portion forming member 40 and the perforation forming member 41, and the casing 42 and the The other metal members do not come into direct contact with each other, so that the movement of the welding portion forming member 40 and the perforation forming member 41 becomes smooth.

Next, the operation of the automatic medicine dividing and packaging machine having the above configuration will be described below.

As shown in FIG. 1, in such an automatic medicine dividing and packaging machine, the packaging paper 3 is fed out from the packaging paper roll 4 held by the roll holding section 5, and this is fed back by a folding roller (not shown). And the like, and guided to the packaging paper welding device 6.

As shown in FIG. 2, in the wrapping paper welding device 6, the wrapping paper 3 is placed between the driving roller 13 and the driven roller 14 and the horn 15 with the fold thereof being on the lower side.
And between the receiving jig 16. At this time, the wrapping paper 3 is attached to the horn 15 and the welding portion forming member 40 of the receiving jig 16.
Between the spring 52 and a predetermined biasing force (pressing force).
Is given. The protrusion dimensions of the welding portion forming member 40 and the perforation forming member 41 from the casing 42 (the distance from the horn 15) and the urging force of the welding portion forming member 40 and the perforation forming member 41 (the pressing force toward the horn 15 side). The pressure is appropriately adjusted in advance according to various conditions such as the thickness and the material of the packaging paper 3.

In this state, the wrapping paper 3 is
Starts transporting. That is, by operating the paper feed motor,
The driving roller 13 and the driven roller 14 are rotated, and the wrapping paper 3 sandwiched therebetween is conveyed. At this time, since the driven roller 14 is urged toward the drive roller 13 by the urging means, the packing paper 3 is conveyed without trouble without relatively slipping.

As shown in FIG. 7, the horn 1 of the ultrasonic welding mechanism 11 is
5 is located on the open end side (the opposite side of the fold, upper side in FIG. 7) of the packaging paper 3, and ultrasonic vibration is oscillated by the ultrasonic oscillator and the ultrasonic vibrator. Then, the ultrasonic vibration is transmitted from the horn 15 to the packing paper 3 sandwiched between the horn 15 and the welding portion forming member 40, and locally heats this portion, so that the folded paper 3 is folded. Melts and welds.
Thereby, the open end side of the packaging paper 3 is continuously welded and closed, and the continuous welding portion 64 is formed, thereby forming a tubular shape. At this time, the horn 15 is
Is located on the side of the ridge portion 41a where the missing portion 45 is not formed, so that no perforations are formed in the packaging paper 3.

Next, when the wrapping paper 3 is transported by a predetermined dimension, that is, by the length of one wrapper, the operation of the paper feed motor is stopped and the transport of the wrapping paper 3 is also performed. Stopped. Here, the horn drive mechanism 21 and the wrapping paper holding mechanism 31 are operated.

First, in the horn drive mechanism 21 shown in FIG. 4, the rotation shaft 22 starts rotating by the operation of the drive motor. Then, the cam 24 rotates integrally with the rotating shaft 22, and the link rod 26
It rotates around the b side. As a result, the slider 25 moves along the guide rail 27, and the horn 15 moves along the through hole 30 in the direction perpendicular to the direction in which the packaging paper 3 continues, toward the fold side of the packaging paper 3. I do.

By the movement of the horn 15, as shown in FIG. 7, the wrapping paper 3 is moved between the horn 15 and the welding portion forming members 40 of the receiving jig 16. The welding is performed in a direction orthogonal to the direction in which the welding is performed, and a welded portion 65 is formed. At this time, since the top portion 40a of the welded portion forming member 40 has a convex curved cross-sectional profile, welding is performed in a stable state without meandering. Also, horn 1
5, when the package paper 3 bulges due to the surface irregularities of the package paper 3 being converged during the movement while being in contact with the package paper 3, the top 4
Since the unevenness 44 is formed on the outer surface 0a, the expanded wrapping paper 3 enters into the concave shape, preventing the welding width from becoming uneven at the top 40a, and concentrating vibration energy on the convex surface. Strong welding can be made possible. Then, even in the concave shape, the welding is performed by contacting the welding portion forming member 40, so that the occurrence of welding failure in this portion is also prevented.

Further, by the movement of the horn 15, the perforations 66 are formed by the perforation forming member 41 in the intervening portion of the packaging paper 3 together with the welding by the welding portion forming members 40, 40. That is, since the perforation forming member 41 has an inverted V-shaped cross-sectional profile, the ultrasonic vibration energy transmitted from the horn 15 is concentrated at the ridgeline portion 41a, and the packing paper 3 in this portion is cut. Since the ultrasonic vibration is not transmitted to the cutout portions 45 formed at predetermined intervals in the ridgeline portion 41a, the separated state of the packing paper 3 is maintained without being welded or divided. Is done. As a result, in the packaging paper 3, the divided part and the connected part are formed intermittently along the moving direction of the horn 15, so-called perforations 66 are formed.

As shown in FIG. 3, the horn 1 at this time is
At the time of the movement of 5, the through hole 30 is formed in the base portion 7a and the base portion 17a of the cover 17, and the hole 34 is formed in the pressing wall portion 32a of the pressing member 32.

When the rotation of the cam 24 shown in FIG. 4 proceeds, the horn 15 reaches the vicinity of the fold of the packaging paper 3,
Subsequently, the movement of the packing paper 3 from the fold side to the open end side is started, and the welding and the perforation of the packing paper 3 are performed again to form a striped welded portion 65 and a perforation 66. Is done.

In parallel with the reciprocating operation of the horn 15 by the horn driving mechanism 21, the holding operation by the pressing member 32 is performed in the packing paper pressing mechanism 31.
That is, when the drive shaft of the horn drive mechanism 21 is operated to start the rotation of the rotary shaft 22, the cam 37 rotates in the separating paper pressing mechanism 31 shown in FIG. When the sliding surface 37b of the cam 37 comes into contact with the tilt plate 38, the tip of the tilt plate 38 moves toward the receiving jig 16 by the urging force of the spring 39, and the pressing wall portion 32a of the pressing member 32 moves. , Abut on the packaging paper 3 at a portion around the hole 34, and press the packaging paper 3 against the receiving jig 16 side. As a result, even if the horn 15 moves perpendicular to the direction in which the packaging paper 3 extends, welding and perforation are performed at predetermined positions without shifting the packaging paper 3.

When the horn 15 reaches the open end of the wrapper 3, the contact of the cam 37 with the tilt plate 38 shifts from the sliding surface 37b to the sliding surface 37a, and the pressing member The pressing wall portion 32a of 32 abuts against the wrapping paper 3, that is, releases the pressing.

Thereafter, the operation of the drive motor of the horn drive mechanism 21 is stopped, and the movement of the horn 15 is stopped. As a result, a continuous welded portion 64 having a length equal to one packaged body, a welded portion 65 formed, and a perforation 66 are formed on the packaging paper 3.

Thereafter, the paper feed motor of the transport means 10 is restarted to restart the transport of the wrapping paper 3 and the horn 15
Is positioned on the open end side of the packaging paper 3 and the continuous welding portion 6
4 and the step of forming the welded portion 65 and the perforation 66 by alternately continuing the process of forming the welded portion 65 and the perforation 66 by stopping the process each time the packaged paper 3 is transported by a predetermined size.
, A plurality of divided packages whose four sides are closed are formed continuously.

Then, while forming the package in the packaging paper welding apparatus 6 as described above, the medicine inlet 1 shown in FIG.
The tablets and powders divided into predetermined amounts by the dividing function are supplied from the hopper 2 provided at the front side of the packaging paper welding device 6 into the packaging paper 3 from the open end side thereof. By doing so, a predetermined amount of tablets and powders can be enclosed in each packet.

In the wrapping paper welding apparatus 6 as described above, when the horn 15 moves from the open end side of the wrapping paper 3 to the fold side, the horn 15 is cut off together with the welding portion 65 forming the wrapping body. Perforations 66 can be formed simultaneously. Also, since the perforation 66 is not mechanically formed by using a perforation blade or the like, the sharpness is not deteriorated and the resin scum of the packaging paper 3 is not generated. 66 is obtained. In addition, since ultrasonic welding is used for welding the packaging paper 3, it is sufficient to apply a voltage and excite only when used, so that preheating is unnecessary and power consumption can be reduced. Further, when the application of the voltage is stopped, the ultrasonic vibration stops and the local heat generation stops immediately, so that no heat remains. Therefore, even when the packaging paper 3 is exchanged, the operation can be performed safely because there is no high heat portion such as the conventionally used heater.

The welding portion forming member 40 and the perforation forming portion 41 of the receiving member 16 are provided with adjusting screws 53 for adjusting the positions of the welding portion forming member 40 and the perforation forming portion 41 in a direction approaching or separating from the horn 15. The projecting dimension of the part forming member 40 and the perforation forming member 41 from the casing 42 (the distance from the horn 15), or these welding part forming members 40,
The urging force (the pressing force on the horn 15 side) of the perforation forming member 41 can be adjusted. Therefore, the ultrasonic welding conditions can be optimally adjusted according to various conditions such as the thickness and the material of the packaging paper 3, and the welding portion 65 of the packaging paper 3 can be adjusted.
In addition, the perforations 66 can always be formed in a favorable state.

In addition, since the base end portion 53a of the adjusting screw 53 projects outside the cover 17, the position of the welding portion forming member 40 and the perforation forming portion 41 can be easily adjusted from outside the cover 17. be able to.

Further, the welding portion forming member 40 and the perforation forming portion 41 can be independently moved, and each is provided with the adjusting screw 53. Therefore, the welding portion forming member 40 and the sewing machine It is also possible to change the conditions with the eye forming unit 41, respectively. Further, since the welding portion forming member 40 and the perforation forming portion 41 move independently of each other, even when the packaging paper 3 is conveyed in a state where the surface of the packaging paper 3 is not uniform and flat, etc., the packaging paper 3 is more preferably satisfactorily transported. Welding and perforation are formed.

In the above embodiment, the horn 1
The frequency, amplitude, and the like of 5 may be set so as to obtain optimal ultrasonic welding conditions according to the material of the packaging paper 3 and the like, and there is no intention to limit specific numerical values. Also, the urging force (pressing force) of the welding portion forming member 40 and the perforation forming portion 41 of the receiving jig 17 is appropriately set in accordance with the minimum welding condition, the condition that the packaging paper 3 is not caught, and the like. It is only necessary to do so, and there is no intention to similarly limit specific numerical values.

Further, the shape of the perforation 66 formed by the perforation forming member 41 is not limited to the dotted line shape as described above, and other appropriate shapes such as forming a notch for opening, for example, may be employed. It is possible. Further, although the configuration is such that the irregularities 44 are formed on the welded portion forming member 40, other shapes can also be adopted as appropriate, and if not necessary, the irregularities 44 may be omitted.

In addition, as for the structure of the horn drive mechanism 21 and the like, other structures can be adopted as long as the horn 15 can be reciprocated. For example, as shown in FIG.
Is provided, and the guide member 72 is movable along the guide member 72. Then, a feed screw 74 that is rotated and driven by a drive shaft of a drive motor 73 such as a stepping motor is provided on the frame 70, and a feed screw nut 75 that meshes with the feed screw 74 is fixed to the guide member 72. by this,
Since the guide member 72 is configured to move along the guide shafts 71 by the rotation of the feed screw 74, the horn 15 is provided on the guide member 72.

In addition to the above, it goes without saying that other configurations than the adjustment mechanism of the receiving jig 16 of the present invention may be adopted.

For example, the packing paper holding mechanism 31 is
It is also possible to adopt a configuration as shown in FIG. That is,
The wrapping paper holding mechanism 80 shown in FIG.
And a pressing drive mechanism 82 for receiving and driving this toward and away from the jig 16. The pressing member 81 has a flat plate shape, and an opening 81o is formed in a central portion thereof at a position corresponding to the moving range of the horn 15.
The pressing member 81 is rotatably supported by a shaft 84 provided on the base 17a of the cover 17 via a bracket 83 in the vicinity of one end 81a corresponding to the fold side of the packaging paper 3. Accordingly, the pressing member 81 is configured to be swingable such that the other end portion 81b approaches or separates from the receiving jig 16 side. The opening amount X of the pressing member 81 at this time is such that when the powdered medicine or the tablet is packaged and the packaging paper 3 passes in the “expanded state”, the packaging paper 3 is caught by the pressing member 81 and is torn. It is set to a dimension that does not exist. The pressing drive mechanism 82 for driving the pressing member 81 includes:
The cover 17 includes a pusher cylinder 85 provided on the lid 17b side of the cover 17 and a return spring 86 provided on the base 17a side. Pusher cylinder 8
Reference numeral 5 denotes a pusher 85a which is driven to expand and contract by a drive source such as air.
1 is caused to swing in a direction in which the other end portion 81 b approaches the receiving jig 16. On the other hand, the return spring 86 has one end fixed to the pressing member 81 at the other end portion 81 b side of the shaft 84, whereby the pressing member 81 is attached in a direction in which the other end portion 81 b is separated from the receiving jig 16. It is a force. Such a wrapping paper holding mechanism 8
At 0, the pressing member 81 is moved toward the receiving jig 16 by operating the pusher cylinder 85 in synchronization with the ultrasonic welding operation of the wrapping paper 3 by the horn 15,
The packaging paper 3 is received and pressed against the jig 16. Then, after the ultrasonic welding operation by the horn 15 is completed, the pusher cylinder 85 is contracted. Then, the pressing member 81 is separated from the receiving jig 16 by the urging force of the return spring 86, and the separating paper 3 is released. According to the packaging paper holding mechanism 80 having such a configuration, the holding member 81
As a result, the packaging paper 3 is pressed from the fold side, so that wrinkling of the packaging paper 3 can be prevented. Further, the driving mechanism of the pressing member 81 can be reduced in size.

Further, in the above-described embodiment, the configuration is such that the folded paper 3 is used, but any band-shaped packaging paper may be used. For example, it is also possible to adopt a configuration in which two band-shaped packaging papers are superimposed, and this is ultrasonically welded by the packaging paper welding device 6 to form a plurality of packaging bodies. In this case, band-shaped wrapping papers are respectively fed from the two wrapping paper rolls, and are overlapped with each other before the wrapping paper welding device 6. Then, the horns 15 are arranged at both ends (joints) of the wrapping paper located on both sides with respect to the feeding direction (conveying direction) of the wrapping paper. By transporting, both ends of the packaging paper are continuously ultrasonically welded. In this case, two sets of horns 15 may be provided as needed. As a result, the packaging paper is formed in a tubular shape, and other perforations and the like may be formed in the same manner as in the above embodiment.

Although the overall structure of the automatic medicine dividing and packaging machine has been described, the structure of the parts other than the packaging paper welding device 6 is not intended to be limited at all, and the present invention is applicable to any structure of the automatic medicine dividing and packaging machine. The packaging paper welding apparatus according to the invention can be applied.

Other than this, any configuration may be adopted as long as it does not deviate from the gist of the present invention, and it is needless to say that the above-described configurations may be appropriately selectively combined. No.

[0068]

As described above, according to the packaging paper welding apparatus according to the first aspect, by transporting the packaging paper and moving the ultrasonic vibration transmission section, the ultrasonic vibration transmission section is moved. A plurality of medicine-encapsulated packages can be formed on the packaging paper by ultrasonically welding the packaging paper between the package and the welding forming portion of the receiving jig. By using ultrasonic welding in this way, preheating is unnecessary and power consumption can be reduced. In addition, since a heater is not used, a high-temperature portion is eliminated, and work such as replacement of the packaging paper can be performed safely. Becomes possible. Since the adjusting member is provided for adjusting the position of the welding portion in the direction of approaching / separating from the ultrasonic transmission member, the distance between the ultrasonic transmission member and the welding portion, the superposition of the welding portion by the urging member, The pressing force to the sound wave transmitting member can be adjusted. This makes it possible to optimally adjust the ultrasonic welding conditions,
It is possible to always perform the formation of the welding of the packaging paper in a good state.

According to the packaging paper welding apparatus of the second aspect,
Two pairs of welding forming portions and perforation forming portions are provided independently, and each has a configuration in which a biasing member and an adjusting member are provided. This makes it possible to change the ultrasonic welding conditions for the weld forming part and the perforation forming part, respectively. Furthermore, since each moves independently,
Even when the packaging paper is transported in a state where the surface of the packaging paper is not even and flat, the welding of the packaging paper and the formation of perforations are performed better.

According to the packaging paper welding apparatus of the third aspect,
Since the end of the adjusting member is provided so as to be exposed on the outer peripheral surface of the cover housing the ultrasonic welding means, the condition can be easily changed from the outside of the cover without opening and closing the cover when changing welding conditions. Changes can be made.

[Brief description of the drawings]

FIG. 1 is an external view showing an example of an automatic medicine dividing and packaging machine equipped with a packaging paper welding device according to the present invention.

FIG. 2 is a cross-sectional view of the packaging paper welding device, taken along a direction perpendicular to the packaging paper surface and in a direction in which the packaging paper is continuous.

FIG. 3 is a side sectional view of FIG. 2;

FIG. 4 is a view showing a horn drive mechanism provided on the back side of the packaging paper welding apparatus.

FIG. 5 is a diagram showing a front side of FIG. 4;

FIG. 6 is a sectional view showing an essential part of FIG. 2 and showing an ultrasonic welding mechanism of the packaging paper welding apparatus.

FIG. 7 is a perspective view showing a state in which the packaging paper is welded by the ultrasonic welding mechanism.

FIG. 8 is a view showing a welding portion forming member provided in the ultrasonic welding mechanism.

FIG. 9 is a diagram showing a perforation forming member provided in the ultrasonic welding mechanism.

FIG. 10 is a plan view showing a receiving jig constituting the ultrasonic welding mechanism.

FIG. 11 is a side sectional view of FIG. 10;

12 is a view as viewed from the direction of the arrow E in FIG. 10;

FIG. 13 is a view as seen from a roll arrow in FIG. 10;

FIG. 14 is a view showing another example of the horn drive mechanism.

FIG. 15 is a view showing another example of the packaging paper welding apparatus.

[Explanation of symbols]

 3 wrapping paper 6 wrapping paper welding device 11 ultrasonic welding mechanism (ultrasonic welding means) 15 horn (ultrasonic vibration transmission member) 16 receiving jig 17 cover 40 welding part forming member (welding forming part) 41 perforation forming Member (perforation forming portion) 42 Casing 52 Spring (biasing member) 53 Adjusting screw (adjusting member)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-9-323708 (JP, A) JP-A-2-8705 (JP, U) JP-A-61-77303 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B65B 9/06-9/08 B65B 1/30 B65B 51/10 A61J 3/00

Claims (3)

(57) [Claims] 1. A packaging paper welding apparatus for forming a plurality of medicine-encapsulated packaging bodies by welding a band-shaped packaging paper, wherein the packaging paper is orthogonal to a direction in which the band-shaped packaging paper is continuous and the packaging is performed. An ultrasonic vibration transmitting member that is movable in a direction along the surface of the paper and transmits ultrasonic vibration, and a receiving jig that sandwiches the packaging paper between the ultrasonic vibration transmitting member and the ultrasonic vibration transmitting member. Ultrasonic welding means is provided, the receiving jig, a welding forming part for welding the packaging paper,
A casing for holding the weld forming portion, and a biasing member for biasing the weld forming portion toward the ultrasonic transmission member,
An adjusting member for adjusting the position of the welding forming portion in a direction approaching / separating from the ultrasonic transmission member. 2. The packaging paper welding apparatus according to claim 1, wherein the receiving jig is provided with a pair of the welding forming portions, and the packaging paper is provided between the welding forming portions. A perforation forming part for forming a perforation is provided, and the two pairs of welding forming part and the perforation forming part are provided independently, and the urging member and the adjusting member are respectively provided. And a separating paper welding apparatus. 3. The packaging paper welding apparatus according to claim 1, wherein said ultrasonic welding means is housed in a cover provided with an entrance and exit for said packaging paper, and said adjusting member has An envelope welding device, wherein an end portion is provided so as to be exposed on an outer peripheral surface of the cover.