JP4261972B2 - Sealing device for vertical multi-row automatic filling and packaging machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical multi-row automatic filling and packaging machine capable of continuously sealing and molding a large number of packages, and particularly a vertical type capable of continuously sealing and molding a large number of sachets. The present invention relates to a sealing device for a multi-row automatic filling and packaging machine.
[0002]
[Prior art]
A conventional vertical multi-row automatic filling and packaging machine, for example, as shown in Patent Document 1, heat-seals a cylindrical packaging material sent in a multi-row state with a vertical sealer and a horizontal sealer each incorporating a heater. A large number of packages are continuously sealed. However, when these vertical and horizontal sealers are used for packaging machines, the area of the vertical and horizontal seals is increased, resulting in a larger overall package. Therefore, it is not suitable for forming a small bag for containing an oxygen scavenger or the like.
[0003]
Therefore, for example, the sachet is sealed by using an ultrasonic sealing device including a horn that generates ultrasonic vibration as seen in Patent Documents 2 and 3, and an anvil (base) that receives the ultrasonic vibration of the horn. It was thought to do.
[0004]
[Patent Document 1]
JP-A-9-272511 [Patent Document 2]
Japanese Patent Laid-Open No. 62-121040 [Patent Document 3]
Japanese Patent Laid-Open No. 6-297608
This type of ultrasonic sealing device converts ultrasonic energy with a frequency of 20 KHz or more into mechanical vibration energy, transmits ultrasonic vibration from a resonator called a horn to the seal, and concentrates the boundary surface and stress. A strong frictional heat is generated and melted by heat, and then sealed by pressurization.
[0006]
The amplitude of the vibration is about 50 to 100 μm, and the vibration generates heat in a very short time at 2 to 30,000 times per second. Since heat is generated inside the seal portion, uniform heating can be achieved, and seals of different materials can be made. Since the welding surface vibrates ultrasonically, it can be welded while dissipating dust and contents (liquid, powder, etc.) present at the welding interface.
[0007]
And the area of a seal part can be made small (a seal part can be made linear), and the part can also be cut. Therefore, since the packaging material can be saved and the cutting machine can be omitted, there is the greatest advantage that it is suitable for seal molding of a small bag.
[0008]
[Problems to be solved by the invention]
However, since the ultrasonic sealing device is welded by sandwiching the packaging material between the horn and the anvil, it is formed into a cylindrical shape even though it can be used for the horizontal seal and the cutting of the packaging material on the front and back of the package. It cannot be used as a vertical sealer that vertically seals the packaging material in an envelope shape (tubular shape). Therefore, it is necessary to seal the vertical seal with a vertical heat sealer with a large seal area. There was a limit.
[0009]
Further, in the vertical multi-row automatic filling and packaging machine described in Patent Document 1, after the horizontal seal is finished with the horizontal sealer, the horizontal sealer is lowered by the length of the bag while being horizontally sealed, and each cylindrical shape. Although the packaging material is pulled out substantially vertically downward, there is a problem that each tubular packaging material cannot be reliably pulled out only by the horn and the anvil constituting the ultrasonic sealing device. Furthermore, if the horizontal sealer is unwound after it has been pulled out substantially vertically downward, the packaging material itself will expand and contract (backlash), resulting in an error in the cutting line due to the cutter, and variations in the bag length. There were also problems that occurred.
[0010]
Therefore, the technical problem of the present invention is to enable seal molding of a sachet in which the area of the vertical seal and the horizontal seal is reduced, and to minimize the backlash of the packaging material itself, thereby enabling variation in the bag length. It is to provide a sealing device for a vertical multi-row automatic filling and packaging machine devised so that it can be reduced in number.
[0011]
[Means for Solving the Problems]
(1) In order to solve the above technical problem, in the sealing device for a vertical multi-row automatic filling and packaging machine according to the present invention, as described in the first aspect, a wide sheet shape fed out from a take-up roll is used. Slitting the wrapping film into a plurality of wrapping films, forming the slit wrapping film into a tubular wrapping material, and forming the formed tubular wrapping material with the vertical sealer and the horizontal A step of sealing and molding each cylindrical bag by a sealer, a step of filling a material to be packaged using a filling device inside each of these cylindrical bags, and a lateral seal of the opening of each cylindrical bag In the vertical multi-row automatic filling and packaging machine configured to continuously and repeatedly perform the step of cutting and the step of cutting the central portion of the horizontal seal of each cylindrical bag body and separating the package body, Impulse energization of the vertical seal It is performed by an impulse sealer using a conductive heating wire that generates heat, and is configured to perform the above horizontal sealing and cutting using an ultrasonic sealing device including an ultrasonically vibrating horn and anvil ,
The upper and lower lengths of the impulse sealer are configured to a length corresponding to a plurality of packages to be seal-molded, and an ultrasonic seal device composed of a horn and an anvil is formed on the lower side of the impulse sealer, An operation frame provided with a clamp that holds a plurality of cylindrical bag bodies and pulls out substantially vertically downward is provided, and each time the vertical seal is performed by the impulse sealer, the clamp removes each cylindrical bag body once for the vertical seal. A plurality of packaging bodies by performing a step of pulling out substantially vertically downward by the length of the length and lateral sealing and cutting by the ultrasonic sealing device with respect to each of the drawn cylindrical bag bodies a plurality of times while moving the ultrasonic sealing device. In such a state, the vertical sealer is turned off while the ultrasonic sealing device performs the horizontal sealing and cutting while the control operation is performed so as to perform the sealing molding process. It is characterized in that allowed to control operation to continue pressing the respective tubular packaging material in.
[0012]
( 2 ) Further, in the sealing device for a vertical multi-row automatic filling and packaging machine according to claim 2 of the present invention , the vertical length of the impulse sealer is a length corresponding to a plurality of seal-molded packages. In the lower part of this impulse sealer, there is an operating frame equipped with an ultrasonic sealing device consisting of a horn and an anvil, and a clamp that holds a plurality of cylindrical bags and pulls them down substantially vertically. Each time the vertical seal is performed by the impulse sealer, the clamp pulls each cylindrical bag body substantially vertically downward, and the ultrasonic sealing device The horizontal sealing and cutting process is repeated a plurality of times for the length of the vertical seal, and a plurality of packages are controlled to be molded, and the ultrasonic seal is used. apparatus While performing lateral sealing and cutting, and wherein said vertical sealer to control operation to continue pressing the respective tubular packaging material in a state of OFF the energization of sealing.
[0013]
According to each means described in the above (1) and (2) , since the vertical seal and the horizontal seal are both performed using an impulse sealer and an ultrasonic seal device having a small area of the seal portion, Allows automatic packaging.
[0014]
Furthermore, according to each means described in the above (1) and (2), a lateral seal and cutting (melting) are performed on each cylindrical bag body using an ultrasonic sealing device comprising a horn and an anvil. In the meantime, since the vertical sealer that has been de-energized continues to hold down the cylindrical bag body, it is possible to prevent backlash of the packaging material itself and to suppress variations in bag length.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a sealing device for a vertical multi-row automatic filling and packaging machine according to the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a multi-row automatic filling and packaging machine embodying the present invention, and FIG. 2 is a front view of the same. The multi-row automatic filling and packaging machine 1 includes a main body frame 1F. A hopper 2 that accommodates the material to be packaged is provided on the upper portion of the main body frame 1F. At the lower part of the hopper 2, there is provided a quantitative supply device 2 </ b> A that distributes and supplies the material to be packaged supplied from the hopper 2 to, for example, 10 supply pipes 3 arranged in parallel in a downward direction. .
[0016]
At the lower end portion of the supply pipe 3, a former 5 is provided as a forming means for forming a packaging film that is slit into a plurality of strips by slit means described later. Each former 5 is attached to the holder 6 side by side. Below the former 5, an impulse sealer 7 as a vertical sealer is provided. Under the impulse sealer 7, an ultrasonic sealing device 8 as a horizontal sealer and an operation frame 101 on which a clamp 301 is mounted are provided. Below the operation frame 101, a guide 9 and a discharge device 10 are provided for discharging the package 13 (see FIGS. 9 and 10) cut (fused) simultaneously with the horizontal seal by the ultrasonic sealing device 8. Yes.
[0017]
As shown in FIGS. 4 and 5, the impulse sealer 7 as a vertical sealer includes a vertical sealer base 701 formed in a vertically long shape and conductive heat generation that generates heat by impulse energization extending in the vertical direction on the surface of the vertical sealer base 701. It is comprised by the path | route of each line | wire 710 and each cylindrical packaging material FA, specifically, the pressing plate 702 as a pressing member provided in the other side across the lower end part 4 of each said supply pipe 3. As shown in FIG.
[0018]
The vertical sealer base 701 and the presser plate 702 are relatively contacted and separated by the driving means including the air cylinder 7H shown in FIG. 1, and are formed into a cylindrical shape by the heat of the conductive heating wire 10. The side edges where F ′ overlap are vertically sealed. The length of the vertical seal by the impulse sealer 7 is a length corresponding to several of the packaging bodies 13.
[0019]
An operation panel box 11 is provided on the front left side of the main body frame 1F. The operation panel box 11 incorporates a CPU for electrically controlling the drive system of the multi-row automatic packaging machine 1. In addition, a patrol light 12 that is turned on when the operation is abnormal is provided at the upper part of the operation panel box 11, and a monitor screen 70 is attached to the front surface of the operation panel box 11.
[0020]
In FIG. 3, reference numeral FH denotes a take-up roll around which a wide sheet-like packaging material film is taken up, and is pivotally supported on the side of the main body frame 1F so as to be detachable. The packaging material film F fed out from the take-up roll FH is stretched over a guide roll and a tension roll and guided to a slitter FX. The slitter FX slits the packaging material film F into a plurality of packaging films F ′ along the feeding direction.
[0021]
The slitter FX is comprised from the upper roller 52 provided with the some cutter blade 51 ..., and the lower roller 53 which rolls with this upper roller. Each packaging film F ′ slit by the slitter FX is passed over two guide rolls 54 and 55 and then guided to the former 5. Each packaging film F ′ is pulled out by reciprocating up and down movement of the operation frame 101. This reciprocating vertical movement will be described later.
[0022]
The packaging film F ′ slit by the slitter FX is made into a cylindrical packaging material FA by the former 5, and is made into a cylindrical bag body by an impulse sealer 7 as a vertical sealer and an ultrasonic sealing device 8 as a horizontal sealer. . And the to-be-packaged material is filled through the supply pipe 3 and the front-end | tip part 4 in the cylindrical bag body which consists of each packaging film F '. After the material to be packaged is filled, the opening on the bag is laterally sealed by the ultrasonic sealing device 8 and cut (fused) to be separated into a plurality of packaging bodies 13... And discharged by the discharge device 10. The
[0023]
As shown in FIG. 6, the ultrasonic sealing device 8 is built in the frame 101 as a whole. In the upper half of the frame 101 as viewed from the side, a horn 203 that is a resonance body that converts electrical energy generated from an ultrasonic oscillator into mechanical vibration energy, and the ultrasonic vibration is applied to a position facing the horn 203. A receiving anvil 202 is attached with a certain interval. The portions where the horn 203 and the anvil 202 are opposed to each other are linear.
[0024]
The horn 203 and the anvil 202 can be separated from each other along a substantially horizontal plane by air cylinders 205 and 204. The air cylinders 205 and 204 are both attached to the operation frame 101 as the first drive means.
[0025]
A clamp 301 for pulling out a plurality of tubular packaging materials FA sandwiched between the horn 203 and the anvil 202 substantially vertically downward is provided on the lower half of the operation frame 101 in a side view as shown in FIG. 6 or FIG. 203 and the anvil 202 are attached to the operation frame 101 so as to be positioned below.
[0026]
As shown in FIG. 8, the clamp 301 includes a pair of clamp pieces 302 and 303. The opposing portions of the clamp pieces 302 and 303 have a linear shape with a length capable of sandwiching all (for example, 10) of the plurality of cylindrical packaging materials F ′. The pair of clamp pieces 302 and 303 may be attached to the operation frame 101 so as to be positioned above the horn 203 and the anvil 202 as shown in FIG. 5, for example, and the selection thereof is arbitrary.
[0027]
An air cylinder 304 is attached to the operation frame 101 as second drive means for the clamp pieces 302 and 303 to come in contact with each other along a substantially horizontal plane. The operation frame 101 is operated at a constant speed by the motor 8X shown in FIG. 1 and the third driving means for vertical driving composed of a driving belt, a driving chain, a driving rack, or a cylinder, not shown, with respect to the main body frame 1F. It moves up and down at intervals.
[0028]
Further, in the present invention described in claim 1 , the operation frame 101 repeats a series of vertical movements as shown in FIG. That is,
(1) Impulse sealer 7 performs vertical sealing by energization while horn 203 and anvil 202 are in an open state, clamp pieces 302 and 303 are in a stopped state, and vertical sealer base 701 and presser plate 702 are closed. First, from the state (origin)
(2) The clamp pieces 302 and 303 are closed and the tubular packaging material FA filled with the packaging material is sandwiched. Subsequently, the vertical sealer base 701 and the presser plate 702 are opened, and then
(3) Maintaining this state, the operation frame 101 is lowered by the length of the vertical seal by the impulse sealer 7 (for several packages), and the tubular packaging material FA is pulled out substantially vertically downward. And at the position where the descent stops,
(4) The clamp 301 releases the tubular packaging material FA. The position where this clamping is released, that is, the place where the horizontal sealing and cutting are planned, becomes the first sealing position by the horn 203 and the anvil 202.
(5) The horn 203 and the anvil 202 descend to the sealing position. And
(6) The horn 203 and the anvil 202 sandwich the above-mentioned horizontal seal and cut first scheduled portion of the cylindrical packaging material FA, and perform ultrasonic sealing and cutting.
(7) After ultrasonic sealing, the horn 203 and the anvil 202 are further lowered by about 2 to 5 mm in order to completely cut the package 13. Thereby, the package 13 is separated (cut). This step (7) is an effective means when the material of the cylindrical packaging material FA has variations, but can be omitted.
(8) The sandwiched state between the horn 203 and the anvil 202 is released at the position where the package 13 is separated, and the first sealing operation is completed. Next, the operation frame 101 is raised to the second sealing work position, the steps (3) to (8) are performed, the second sealing work is performed, and the length of the cylindrical packaging material FA from which these works are drawn out. However, the above-described sealing operations after the second time are performed at a position where the bag is sequentially raised by one bag each time the operation is repeated. During this time, the vertical sealer base 701 and the presser plate 702 or the presser plate 702 that are deenergized to the conductive heating wire 710 press the cylindrical packaging material FA to prevent backlash of the packaging material.
(9) Then, the frame 101 returns to the origin of (1). Thereafter, the same up and down movement is repeated at regular intervals according to a program stored in the CPU.
[0029]
On the other hand, in the present invention described in claim 2 , the operation frame 101 repeats a series of vertical movements as shown in FIG. That is,
(1) When the horn 203 and the anvil 202 are in the open state, the clamp pieces 302 and 303 are in the stopped state, and the vertical sealer base 701 and the presser plate 702 are closed, the impulse vertical sealer 7 performs vertical sealing by energization. From the state (origin)
(2) The clamp pieces 302 and 303 are closed, and the tubular packaging material FA filled with the material to be packaged is in a closed state in which the horizontal seal and the planned cutting portion are sandwiched. Subsequently, the vertical sealer base 701 and the presser plate 702 are opened, and then
(3) Maintaining this state, the operating frame 101 is lowered by the vertical dimension (one pitch) of one package. And at the position where the descent stops,
(4) The clamp 301 releases the tubular packaging material FA. The position where this clamping is released, that is, the place where the horizontal sealing and cutting are planned becomes the sealing position by the horn 203 and the anvil 202.
(5) The horn 203 and the anvil 202 descend to the sealing position. And
(6) The horn 203 and the anvil 202 sandwich the above-mentioned horizontal seal and the planned cutting site of the tubular packaging material FA, and perform ultrasonic sealing and cutting.
(7) After ultrasonic sealing, the horn 203 and the anvil 202 are further lowered by about 2 to 5 mm in order to completely cut the package 13. Thereby, the package 13 is separated (cut). As described above, this step (7) is an effective means when there are variations in the material of the cylindrical packaging material FA and can be omitted.
(8) The sandwiched state between the horn 203 and the anvil 202 is released at the position where the package 13 is separated, and the first sealing operation is completed. Next, the actuating frame 101 is raised to the position of the second sealing operation, the steps (1) to (8) are performed, the second sealing operation is performed, and these operations are cylindrical with the impulse vertical sealing completed. This is repeated for the length of the packaging material FA. However, energization to the impulse sealer 7 is turned off during the process (1). In addition, while the clamp pieces 302 and 303 are opened and released from the cylindrical packaging material FA, pressing by the vertical sealer base 701 and the pressing plate 702 or pressing by the pressing plate 702 is continued. Backlash is prevented.
(9) Then, the operation frame 101 returns to the origin of (1). Thereafter, the same up and down movement is repeated at regular intervals according to a program stored in the CPU.
[0030]
【The invention's effect】
As described above, according to the sealing device for the vertical multi-row automatic filling and packaging machine according to the present invention, the area of the vertical seal and the horizontal seal is reduced, and a very small sachet suitable for seal packaging such as an oxygen scavenger. In order to form a plurality of packages in a continuous manner, after performing a longitudinal seal with a long dimension with an impulse sealer, and repeatedly performing a transverse seal and cutting with an ultrasonic seal device, Combined with the fact that it can demonstrate the functionality and economy of high-capacity seal molding of a large number of sachets, preventing backlash of the packaging material and minimizing dimensional variations as much as possible. In particular, it is suitable for bags for use in a multi-row automatic filling and packaging machine for small bags.
[Brief description of the drawings]
FIG. 1 is a side view of a vertical multi-row automatic filling and packaging machine in which a sealing device according to the present invention is implemented.
FIG. 2 is a front view of the same.
FIG. 3 is a perspective view showing a slitter portion of a vertical multi-row automatic filling machine.
FIG. 4 is a configuration diagram showing an example of arrangement of sealers and clamps in a sealing device for a vertical multi-row automatic filling and packaging machine according to the present invention.
FIG. 5 is a configuration diagram showing another example of the arrangement of each sealer and clamp.
FIG. 6 is a side view of a sealing device for a vertical multi-row automatic filling and packaging machine according to the present invention.
FIG. 7 is a plan view of a sealing device for a vertical multi-row automatic filling and packaging machine according to the present invention.
FIG. 8 is a plan view of a clamp of a sealing device for a vertical multi-row automatic filling and packaging machine according to the present invention.
FIG. 9 is an explanatory view showing an operating state of the sealing device according to the present invention.
FIG. 10 is an explanatory view showing another example of the operating state of the sealing device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vertical multi-row automatic filling and packaging machine 8 Ultrasonic sealing device 13 Packaging body 101 Operation frame 202 Anvil 203 Horn 204, 205 Air cylinder (first drive means)
301 Clamps 302 and 303 A pair of clamp pieces 304 Second drive means 7 Impulse sealer 701 Vertical sealer base 702 Presser plate 710 Conductive heating wire 8X Motor F ′ packaging film FA cylindrical packaging material as drive source of third drive means

Claims (2)

Forming a wide sheet-shaped packaging material film fed from a take-up roll into a plurality of packaging films, forming a plurality of slit packaging films into a cylindrical packaging material, and forming them. A step of sealing the formed cylindrical packaging material into a cylindrical packaging material by a vertical sealer and a horizontal sealer, a step of filling a material to be packaged using a filling device inside each of these cylindrical bag bodies, and A vertical multi-portion configured such that the step of horizontally sealing the open mouth of the cylindrical bag body and the step of cutting the central portion of the horizontal seal of each cylindrical bag body and separating the package body are repeated repeatedly. In row automatic filling and packaging machine,
Performed by an impulse sealer using the conductive heating line to heat by the impulse energizing the vertical seal described above, configured to perform using the horn and consists anvil ultrasonic sealing device ultrasonically vibrating cutting and transverse sealing of the With
The upper and lower lengths of the impulse sealer are configured to a length corresponding to a plurality of packages to be seal-molded, and an ultrasonic seal device composed of a horn and an anvil is formed on the lower side of the impulse sealer, An operation frame provided with a clamp that holds a plurality of cylindrical bag bodies and pulls out substantially vertically downward is provided, and each time the vertical seal is performed by the impulse sealer, the clamp removes each cylindrical bag body once for the vertical seal. A plurality of packaging bodies by performing a step of pulling out substantially vertically downward by the length of the length and lateral sealing and cutting by the ultrasonic sealing device with respect to each of the drawn cylindrical bag bodies a plurality of times while moving the ultrasonic sealing device. In such a state, the vertical sealer is turned off while the ultrasonic sealing device performs the horizontal sealing and cutting while the control operation is performed so as to perform the sealing molding process. In a vertical multi-row self-filling packaging machine sealing apparatus characterized by allowed to control operation to continue pressing the respective tubular packaging material. Forming a wide sheet-shaped packaging material film fed from a take-up roll into a plurality of packaging films, forming a plurality of slit packaging films into a cylindrical packaging material, and forming them. A step of sealing the formed cylindrical packaging material into a cylindrical packaging material by a vertical sealer and a horizontal sealer, a step of filling a material to be packaged using a filling device inside each of these cylindrical bag bodies, and A vertical multi-portion configured such that the step of horizontally sealing the open mouth of the cylindrical bag body and the step of cutting the central portion of the horizontal seal of each cylindrical bag body and separating the package body are repeated repeatedly. In row automatic filling and packaging machine,
The above vertical sealing is performed by an impulse sealer using a conductive heating wire that generates heat by impulse energization, and the above horizontal sealing and cutting are performed using an ultrasonic sealing device composed of an ultrasonically vibrating horn and anvil. With
The upper and lower lengths of the impulse sealer are configured to a length corresponding to a plurality of packages to be seal-molded, and an ultrasonic seal device composed of a horn and an anvil is formed on the lower side of the impulse sealer, An operation frame provided with a clamp that holds a plurality of cylindrical bag bodies and pulls out substantially vertically downwards is provided, and each time the vertical seal is performed by the impulsive sealer, the clamp removes each cylindrical bag body by one bag. The process of drawing out substantially vertically downward and the sealing process in which the ultrasonic sealing device performs horizontal sealing and cutting on each cylindrical bag body pulled out are repeated a plurality of times for the length of one vertical seal. In such a state, the vertical sealer turns off the energization for sealing while the ultrasonic sealing device is performing horizontal sealing and cutting while performing the control operation so that a plurality of packages are sealed. In a vertical multi-row automatic filling and packaging machine seal device and controls operation to continue pressing the respective tubular packaging material.

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