JP3718193B2 - Powder packing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a horizontal rotary type powder filling and packaging machine that forms a bag from a long resin film by heat sealing, fills the powder, and wraps the powder, and particularly relates to a powder filling and packaging machine capable of adjusting the bag pitch. .
[0002]
[Prior art]
The continuous automatic powder filling and packaging machine forms a large number of bag parts continuously on a long thermoplastic resin film, fills each bag part with a predetermined amount of powder, and seals each bag part by heat sealing. The bags manufactured thereby are separated by the cutting machine by cutting the width seal portions one by one. Alternatively, every two or three bags are cut with a cutting machine, and a perforation is inserted in the width seal portion between the bags, and when used, the bag portion can be separated from the perforation.
[0003]
As shown in FIGS. 7 and 8, the conventional rotary type powder filling and packaging machine rewinds the coiled long film 90 by the rewinding device 8 and continuously transfers it to the powder filling device. While the film 90 is transported horizontally, it is first bent into a U-shaped bowl shape through the film guide 84 and then transferred to the sealing and filling mechanism so that the lower ends of the chutes 3 are sequentially placed between the two folded films 91. Then, sealing bars 20 (20a, 20b) arranged in the same manner sequentially sandwich the folded film from both sides, and at the same time narrow the width of the film in the width direction on the heating surface of the fixed heating bar 20a. Thus, the width seal portions are formed at regular intervals.
[0004]
The inside of the double film delimited by a large number of width seal portions 92 becomes a bag portion 93, and a large number of bag portions 93 are continuously formed in the longitudinal direction. Since the upper edge portion of the bag portion 93 is opened and the lower end portion of the chute is inserted, the powder agent is quantitatively cut out from the dust supply means 6 immediately above the sealing filling mechanism through the jar opening, and the dust is taken into the chute 3. Each bag portion 93 guided by the above is filled.
[0005]
While the film 91 in which the powder is loaded in each bag portion 93 is continuously transferred, the upper edge sealing portion 87 continuously heat-seals the upper edge portion 95 of the bag portion, and the upper edge seal portion. Is formed, and the inside of the bag portion is sealed. Further, while the film is being transferred, the width seal portion 92 is perforated or cut by the cutting device 89, and each bag portion 93 is cut off as needed to become the product 9.
[0006]
As an example of a horizontal rotary type powder filling and packaging machine, as shown in Japanese Patent Application Laid-Open No. 2001-122208, as shown in FIG. 7, a rotating cylinder 13 can be rotated around a fixed base 11 by a bearing mechanism 131. One turn ring that is supported and fixed to the outer periphery of the rotary cylinder 13 is a gear 18b, and is engaged with the gear 18a of the drive shaft 19 to be rotated.
[0007]
A cam groove 121 for vertically guiding the chute shaft by engaging the cam cam follower 35 provided at the lower portion of the chute shaft is formed on the peripheral surface of the cylindrical body 12 below the fixed cylinder 12. The cam groove 121 for raising and lowering the chute shaft guides the chute 3 up and down through the cam follower 35 by moving the cam groove up and down.
[0008]
According to the rotation of the rotating cylinder 13, the sealing bar 20 sandwiches the film 91 folded in half by its opening / closing operation, and the sealing bar 20 is heated and guided around the turntable while the sealing bar 20 is heated, so that the width seal portion is equally spaced on the film. 92 are sequentially formed into a large number of connected bag portions 93. At the same time, the lower and upper portions 32 of the chutes 3 are sequentially inserted into the respective bags 93 by filling and lowering the chutes 3 and filled with powder, and then the chutes are pulled out from the bags. The film 91 is released from the sealing bar 20 and transferred to the upper edge sealing device 87 as described above.
[0009]
[Problems to be solved by the invention]
Since this conventional horizontal rotary type powder filling and packaging machine is provided with the fixed cylinder 12 engraved with the cam groove 121 below the rotary cylinder 13, as a whole, the mechanism becomes bulky and large. The chute shaft 34 that drives the chute up and down is lengthened, and this makes the machine relatively expensive.
[0010]
In the conventional horizontal rotary type powder filling and packaging machine, the sealing bar 20 and the chute 3 corresponding thereto are fixed at a predetermined position on the upper edge portion of the rotating cylinder 13 of the above-described sealing filling mechanism. The spacing between the bars 20 fixes the spacing between adjacent bags, i.e., the bag pitch, and therefore it is substantially difficult and difficult to change the bag spacing, i.e., the bag pitch. Then, it is necessary to replace all the rotating parts including the rotating cylinder 13, and there is a problem that the cost for remodeling is high, which is equivalent to substantially remodeling the powder filling and packaging machine. However, it has been desired that the size of the bag can be changed and adjusted from the viewpoint of the type and amount of the powder product to be filled therein, its properties, and in particular, the design of the bag.
[0011]
In view of the above problems, the present invention intends to provide a compact powder filling and packaging machine by reducing the bulk of the sealing and filling mechanism.
Another object of the present invention is to provide a powder filling and packaging machine having a structure capable of quickly and easily changing a bag pitch and capable of filling and packaging into bags having different bag pitches with a single packaging machine. Is.
[0012]
[Means for Solving the Problems]
In the horizontal rotary type powder filling and packaging machine of the present invention, in the sealing and filling mechanism, a rotating cylinder body that is rotationally driven by a driving mechanism is provided on a fixed cylindrical base, and one chute and one sealing bar are provided. Are integrated into a single sealing unit, and a required number of sealing units are selected and detachably mounted on the outer peripheral surface of the rotating cylinder at equal intervals. The chute of each sealing unit includes a chute shaft disposed on the sealing unit so as to be movable up and down, and a cam follower fixed to the lower portion of the chute shaft. The upper portion of the cylindrical base is formed on the outer surface. The fixed guide cylinder having a cam groove for raising and lowering the chute that is engaged and guided by the cam follower of the chute shaft is fixed.
[0013]
The fixed guide cylinder with the lift cam groove can be placed at the same height level as the sealing bar of the sealing unit due to its mechanism. Therefore, the lift cam groove is formed below the rotary cylinder as in the past. Therefore, it is possible to reduce the height of the sealing and filling mechanism, and particularly to the sealing unit, the chute shaft can be shortened. The entire filling and packaging machine can be made compact.
[0014]
As described above, the dust-filled sealing mechanism of the present invention allows the number of sealing units to be exchanged, thereby allowing the sealing unit to be attached to the circumference of the sealing bar that rotates on the outer circumference of the rotating cylinder. The number can be changed as appropriate. Therefore, the bag pitch can be easily set by changing the interval between adjacent sealing bars and the arrangement of the corresponding chutes.
[0015]
In this sealing and filling mechanism, the sealing unit can be attached to or detached from the rotating cylinder one by one, so that the powder filling and packaging machine can perform powder filling work without any special disassembly and assembly. There is an advantage that the bag pitch can be easily changed in a short time by adjusting the sealing unit at any time during stoppage.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the powder filling and packaging machine includes a sealing filling mechanism and a powder metering device, and the sealing filling mechanism is supported by a fixed cylindrical base and rotated around a vertical axis by a drive mechanism. A rotating cylinder and a sealing unit that is detachably arranged at an equal interval and in a desired number on the outer periphery of the rotating cylinder. Each sealing unit includes one sealing bar and one chute corresponding thereto. Are integrated.
[0017]
In this embodiment, preferably, the sealing unit is provided on a fixed portion for removably fixing the outer surface of the rotating cylinder, a chute shaft holding portion for penetrating and holding the chute shaft in a vertically movable manner, and an upper portion of the fixed portion. A unit main body having a protrusion or a shoulder for fixing the sealing bar is included.
[0018]
First, the fixing part is detachably fixed to the outer peripheral surface of the rotating cylinder to support the sealing unit. One form is a piece in which the fixing part is opened with bolt insertion holes up and down. None, the rotating cylinder has a fixed surface in contact with the outer peripheral surface.
The fixing surface is fixed by inserting a bolt through a bolt hole in accordance with the outer peripheral surface of the rotating cylinder and screwing it into a screw hole provided at a predetermined position on the outer periphery of the rotating cylinder.
[0019]
The protrusion or shoulder of the sealing unit is fixed at a position above the fixing part so as to protrude or project outward, and is used as a base for fixing the sealing bar. The fixed heating bar is provided upright and a tilting seal bar that is pivotally supported by the base of the fixed heating bar and tiltable. The sealing bar is configured such that the fixed heating bar and the tilting seal bar sandwich and close the film, thereby holding the film at equal intervals to form a width seal portion.
[0020]
The chute shaft holding portion in the sealing unit preferably extends upward above the fixed portion and holds the chute shaft slidably up and down. A chute is fixed from the upper end portion of the chute shaft held by the chute shaft holding portion via a substantially horizontal arm, and a cam follower for raising and lowering is connected to the lower side of the chute shaft holding portion of the chute shaft.
[0021]
In the present invention, in order to raise and lower the chute shaft of each sealing unit, the upper and lower portions of the fixed cylindrical base are formed on the outer surface and engaged and guided by the cam follower of the chute shaft. A fixed guide cylinder having a cam groove is fixed. The fixed guide cylinder for the cam groove can be disposed at the upper part of the cylindrical base, and therefore higher than the rotary cylinder. In this case, the height of the fixed cylindrical base can be shortened so that the rotating cylinder is close to the substrate, and the position of the chute of the sealing unit can be reduced, which is useful for making the entire machine compact.
[0022]
Further, a rotor is provided at the lower end of the chute shaft via a crankshaft, and a chute turning guide provided with a chute turning guide groove for guiding the rotor of the chute shaft is provided on the cylindrical base. It is preferable to be fixed around the rotation axis of the rotating cylinder. As a result, the sealing filling mechanism can arrange the turning guide groove at a position higher than the cylindrical base substantially the same as the fixed guide cylinder of the raising and lowering cam groove, and shorten the height of the fixed cylindrical base. The position of the chute of the sealing unit can be reduced, which helps to make the entire machine compact.
[0023]
In particular, the fixed guide cylinder includes a ring main body including a lower surface portion of the cam groove for raising and lowering the chute, and a ring mounting member that is detachably disposed on an upper portion of the ring main body and has an upper surface portion of the cam groove. It is preferable that the cam follower can be easily detached and inserted from the cam groove for lifting by removing the ring attachment member when the sealing unit is mounted and removed.
[0024]
The rotating cylinder is provided with a driven gear for rotational driving on its outer periphery, and the drive shaft for driving this is arranged outside the sealing filling mechanism, and a gear provided on the upper portion of the drive shaft is provided. Accordingly, the driven gear can be rotated to rotate the rotating cylinder, and thus the sealing unit.
[0025]
Furthermore, it is preferable that a drive motor is connected to the drive shaft so that the rotation speed of the drive shaft can be changed, and the rotation speed of the rotating cylinder is changed each time the number of sealing units is changed. The timing of charging the powder from the powder metering device to the chute is measured. Such a rotation speed change can be performed by using a servo motor as a drive motor. In another method, a speed change mechanism can be arranged between the drive motor and the drive shaft, and the rotation speed can be changed by exchanging gears.
[0026]
The other powder metering / cutting device can be arranged such that a rotating shaft for rotating the rotating container directly or indirectly passes through the inside of the cylindrical base of the sealing filling mechanism, or on the outside of the sealing filling mechanism. The rotating container can be rotated directly or indirectly.
[0027]
【Example】
The powder filling and packaging machine according to the embodiment of the present invention is shown in FIG. 1 with a sealing filling mechanism combined with a support mechanism for a rotating container of a conventional powder measuring and cutting device (however, a hopper and a grinding plate are shown in the figure). FIG. 4 shows a sealing filling mechanism in which the support mechanism of the powder metering and cutting device is arranged on the outside of the sealing and filling mechanism using a separate support, and the powder metering and cutting device can be turned around the support. An example is shown. FIG. 6 shows a sealing filling mechanism together with a powder cutting device that rotates a rotating container supported by the rotating shaft by arranging a rotating shaft outside the sealing filling mechanism (however, a hopper is shown in the figure). Omitted).
[0028]
In the following description of the embodiments, a common sealing and filling mechanism will be described regardless of differences in the form of the powder metering and cutting device 6. 1, 4, and 6, a cylindrical base 11 fixed on the base 101, a rotating cylinder 13 that is rotatable on the outer periphery of the cylindrical surface of the base 11, and a desired outer peripheral side of the rotating cylinder 13 Several sealing units 2 are arranged around the rotating cylinder 13 at equal intervals and adjacent to each other, and the sealing unit 2 can rotate according to the rotation of the rotating cylinder 13. Each sealing unit 2 integrates one sealing bar 20 and one chute 3 corresponding to the sealing bar 20 to facilitate mounting on the rotating cylinder.
[0029]
Specifically, as shown in FIGS. 1, 4, and 6, the cylindrical base 11 is provided with a rotating cylinder 13 that is rotatable about a vertical axis via a bearing 131, and on the outer periphery of the rotating cylinder 13. Are formed with mounting holes for mounting a sealing unit 2 to be described later.
[0030]
A ring 181 formed with a driven gear 18b is fixed around the lower portion of the rotary cylinder 13, and is engaged with a gear of a drive shaft connected to a motor (not shown).
[0031]
In the sealing mechanism main body, an upper support cylinder 14 is erected and fixed to the upper end of the cylindrical base 11 via a horizontal plate 111. The upper support cylinder 14 has a cam groove for raising and lowering the chute shaft on its outer periphery. A fixed guide cylinder body 171 is engraved on the outer surface, that is, a cam ring 17 is supported. The chute raising / lowering cam groove 171 opens toward the outer side in the radial direction of the cylinder. As will be described later, the cam follower 35 of the chute shaft 34 is fitted into the cam ring to move the chute shaft 34 up and down. It is formed to circulate around 17 and move up and down.
[0032]
A ring-shaped chute guide 37 having a chute turning guide groove 371 is fixed to the lower part of the outer peripheral side of the cam ring 17 and above the cylindrical base 11. The chute turning guide groove 371 receives and guides the rotor 38 at the lower end of the chute shaft.
[0033]
2 and 3, the details of the sealing unit 2 include a unit main body 4. The unit main body 4 includes a fixing portion 41 for removably fixing to the outer surface of the rotating cylinder and a chute shaft 34 on the top. Is provided with a chute shaft holding portion 44 for penetrating and holding the upper and lower portions, and a protrusion or shoulder portion 42 for fixing the sealing bar.
[0034]
In this example, the fixing portion 41 is a vertically long member, and is provided with a curved or flat fixing surface 40 that comes into contact with the outer surface of the rotating cylindrical body. It is placed in place.
[0035]
Corresponding bolt fastening holes 134 are formed on the outer periphery of the other rotating cylinder 13 at a desired interval, and the sealing unit 2 is a fixed surface configured as the fixing portion 40 on the outer surface of the rotating cylinder 13. Facing each other and tightened with a bolt 412. The other rotating cylinder 13 has bolt holes 134 required for each set on the outer peripheral surface at equal intervals on the outer peripheral surface in advance, corresponding to the number of mounting units of several sets. It is provided. If any one of the groups of bolt fastening holes 134 is selected and the sealing unit 2 is attached, a required number of sealing units can be fixed at a required equal interval.
[0036]
The chute shaft holding portion 44 is provided with a guide hole 45 that vertically penetrates the inside of the chute shaft holding portion 44. The chute shaft 34 of the chute 3 is fitted into the chute shaft so as to be movable up and down through the guide hole. Yes. The chute 3 is fixed via a horizontal arm 33 fixed to the upper end portion of the chute shaft 34, and the chute 3 has a funnel-shaped upper portion 31 that extends upward and an elliptical cylindrical lower portion that is directly below the funnel-shaped upper portion 31. It consists of 32.
[0037]
A cam follower 35 is attached to the lower end of the chute shaft so as to protrude laterally with respect to the chute shaft 34 via a cam follower mounting member 351. The mounting member 351 transmits the vertical movement of the cam follower to the chute shaft, but the chute shaft can rotate around the shaft. In this example, a cam follower mounting member 351 or a cam follower guide 39 that penetrates the cam follower 35 in the lateral direction is connected to the unit main body 4 to prevent the cam follower 35 from rotating around the chute axis.
[0038]
A cam follower 35 provided at the lower end portion of the chute shaft 34 is fitted in the cam groove for raising and lowering the chute to guide the chute shaft 34 up and down. The cam circumferential groove is set so as to circulate in the outer peripheral surface of the fixed guide cylinder at a low position at the chute descending position and at a high position at the chute raised position. As the rotating cylinder 13 rotates, the cam follower 35 provided at the lower end portion of each chute shaft 34 moves up and down according to the vertical displacement of the cam groove 171 while circling, and each chute 3 at a predetermined position. Raise and lower. Therefore, the cam circumferential groove 171 is relatively high when the sealing unit 2 is in the powder filling position, and conversely, when the sealing unit 2 pulls up the chute 3 and avoids the film 91. It is set to be a position.
[0039]
Further, the chute shaft 34 penetrates the cam follower mounting member 351, and a rotor 38 is connected to the lower portion via a small crankshaft 381. The rotor 38 at the lower end of the chute shaft 34 is fitted into a chute turning guide groove 371, and the wall surface of the guide groove 371 is formed to be eccentric with respect to the central axis 100. The chute 3 is swung around the chute shaft 34 by the rotation of the unit 2 around the rotating cylinder.
[0040]
On the other hand, the sealing bar 20 that constitutes the sealing unit 2 includes a fixed heating bar 20a that is erected with the base 24 fixed to the upper surface of the protrusion 42 at the top of the unit body 4 in FIGS. The tilting seal bar 20b is pivotally supported by a horizontal shaft 25 provided on the base 24 of the fixed heating bar 20a. Inside the fixed heating bar 20a, a heating element 22 is embedded in the longitudinal direction of the bar, and the heating element 22 heats the fixed heating bar 20a to a temperature at which the film 91 can be thermocompression bonded.
[0041]
The tilting seal bar 20b can change from a horizontal state to a vertical state close to the fixed heating bar 20a with a horizontal axis provided at the lower portion of the fixed heating bar 20a as a fulcrum. For this operation, the tilting seal bar 20b is provided with a tilting lever 21 on the opposite side of the horizontal axis and a rotor 211 protruding from the tip.
[0042]
As shown in FIG. 1, the guide rail 26 is arranged so as to circulate around the sealing and filling mechanism, and a guide groove 261 in which the rotor 211 of the tilting lever 21 is rotatably fitted is provided. The guide groove 261 for turning the sealing bar is arranged along the guide rail 26 so that it swells up and down, and the rotation of the rotary cylinder 13 causes the sealing unit 2 to circulate around it. As a result, the tilting seal bar 20b can be changed from a closed state to an open state with respect to the fixed heating bar 20a.
[0043]
When the sealing bar 20 of each sealing unit 2 fixed to the rotating cylinder 13 is rotated, if the tilting seal bar 20b tilts downward and faces in the lateral direction, the film 91 is fixedly heated. When the tilting seal bar 20b is closed, the film can be sandwiched between the fixed heating bar 20a and the tilting seal bar 20b and transported around the rotating cylinder, A width seal portion is formed by a fixed heating bar. Furthermore, when the tilting seal bar 20b is opened, the film can be separated from the fixed heating bar.
[0044]
Mounting the rotating cylinder to the sealing unit is very simple. Prepare the required number of sealing units, and fix the fixing surface 40 of the fixing part of each sealing unit to the outer periphery of the rotating cylinder with the corresponding bolt fastening holes. At this time, the rotor 38 at the lower end of the chute shaft 34 is fitted into the guide groove 371 and the cam follower 35 of the chute shaft 34 is inserted into the lift cam groove 171 and fixed.
[0045]
The use of this sealing unit is possible even in a powder filling and packaging machine of the type in which the rotary container 61 of the powder quantitative cutting device is fixed in position directly above the sealing filling mechanism as shown in FIG. The sealing unit can be freely replaced without separation from the rotating shaft. Furthermore, even when changing the number of sealing units to be arranged, and therefore changing the bag pitch, the entire sealing unit can be replaced very easily. There are advantages that can be done.
[0046]
FIG. 5 shows, as a preferred example, a structure in which a fixed guide cylinder having a cam groove 171 formed therein, that is, a cam ring 17 can be divided into two in the upper and lower directions. 11 is fixed to the upper end of the support cylinder 14 via the horizontal plate 111 and fixed to the upper side, and the cam ring 17 includes a ring main body 176 having an upper end surface 175 and the ring main body. And a separate ring mounting member 172 provided with a lower end surface 173 spaced apart by the width of the cam groove 171. The ring mounting member 172 is mated with the upper end surface 175 of the ring body 176 and the lower end surface 173. In this manner, the support cylinder 14 is detachably screwed and fixed. Accordingly, the lower end surface 173 becomes the upper surface of the cam groove 171 and the upper end surface 175 becomes the lower surface of the cam groove 171, and the cam groove 171 is formed between the both end surfaces 173 and 175.
[0047]
When attaching / detaching the sealing unit 2 to / from the mechanism main body 10, the ring mounting member 172 is removed, and when mounting, the cam follower 35 provided at the lower end of the chute shaft 34 is attached to the ring main body 175. When all the sealing units are fixed on the end surface 176, the cam follower 35 can be fitted into the cam groove 171 for ascending / descending guide by fixing the ring mounting member 172 on the ring body. The cam follower 35 moves in the vertical direction along the cam groove 171 as the rotary unit rotates.
[0048]
In the usage mode of the powder filling and packaging machine of the present invention, each chute 3 descends between the films folded in half while the rotating cylinder 13 circulates, and the lower portions thereof are sequentially placed, and further adjacent to each other. When the sealing bar 20 is closed, the folded film is fixed by sandwiching it from below, whereby the film 91 is transported according to the turning trajectory of the sealing bar 20 and simultaneously heated. The film is heat-sealed in the width direction by the heating bar 20a, and the lower portion 32 of the chute 3 is already inserted into the bag portion 93 formed by the width seal portion 92 in this way.
[0049]
Further, during rotation of the rotating cylinder 13, the powder is filled into each bag 93 of the film 91 through the chute 3, and then each chute 3 is sequentially lifted to pull out the chute tip 32 from the bag, Next, the tilting seal bar 20 b of the sealing bar 20 is opened horizontally, the film is released from the sealing bar 20, and the packed film is transferred to the upper edge seal portion 87.
[0050]
The powder quantity dispensing device used in this example is a fixed container that penetrates downward to the periphery of the bottom plate 62, a hopper 7 at the top, a rotating container 61 having a flat bottom plate 62 for receiving the powder by opening the lower end of the hopper. A plurality of cylindrical tubs 64 having a volume, a shutter 65 that opens and closes the lower end opening surface of each ridge 64, and fixed on the bottom plate 62, close to the upper end opening surface of the tub 64, and powdered into the hole. And a ground plate 63 (see FIGS. 4 and 7).
[0051]
A powder quantity constant quantity cutting device 6 shown in FIG. 1 (the hopper 7 and the grinding plate 63 are omitted in this figure) is a rotating shaft that penetrates the center of the bottom plate 62 of the rotating container 61 inside the cylindrical base 11. In this figure, a column tube 18 is erected on a horizontal plate 111 horizontally provided on the rotary base 11, and the rotary shaft 79 is inserted and rotated. At the upper end, the bottom central part of the bottom plate is fastened and fixed with a nut, and the trajectory of the lower end opening of each flange 64 of the rotating container 61 coincides with the upper opening 31 of each chute 3 in the vertical direction. A rotating container 61 is positioned.
[0052]
4 uses a column 71 standing on the base 101 and arms 74a and 74b extending laterally from the column 71, and a rotating container on the front side of the arms 74a and 74b. A frame body 60 that rotatably supports 61 is fixed. The rotating container 61 is provided with a gear 69 around it. A rotating shaft 79 driven by a motor is fitted into the support 71, and the gear 72 at the upper end of the rotating shaft 79 and the gear 69 of the rotating container 61 are connected. Are connected so as to be able to be transmitted by a plurality of relay gears, and the rotation of the rotary shaft 79 causes the rotary container 61 to rotate about the vertical axis.
[0053]
Thereby, the rotating container 61 is moved by the rotation of the rotating cylinder 13 and the lower end opening of the corresponding basket 64 is positioned exactly above each chute 3 that has come to the filling position, and the shutter 65 is opened. The powder powder weighed and ground in the basket 64 is accurately put into the chute 3 and synchronized so as to be inserted into the bag. In such timing adjustment, a servo motor controlled by a servo mechanism can be used as a motor for driving the rotating shaft 79 for the rotating container.
[0054]
In the embodiment of FIG. 6, the rotary container 61 of the powder quantitative cutout device 6 is directly supported and rotated by the rotary shaft 79. In this example, the rotary shaft 79 is sealed on a separate support plate 103. Since the rotating container is supported outside the rotating container 61, the rotating locus of the cage 64 of the rotating container 61 is arranged so as to circumscribe the rotating locus of the chute 3 of the sealing filling mechanism. Also in this case, the association between the rod 64 and the chute 3 is synchronized by the synchronization of the drive shaft motor and the rotary shaft motor. The structure of the powder quantitative cutout device 6 is the simplest compared to the above two embodiments, and is particularly suitable for a low and medium speed powder filling and packaging machine.
[0055]
【The invention's effect】
In the powder filling and packaging machine of the present invention, one sealing bar and one corresponding chute are integrated to form a sealing unit, and a desired number of sealing units are attached to and detached from the outer peripheral surface of the rotating cylinder at equal intervals. Since it is fixed as possible, batch replacement of the chute and the sealing bar is easy in a short time, so that the number of sealing units can be changed, and the bag pitch can be easily changed by the same machine for bagging. Can do.
[0056]
Further, the powder filling and packaging machine of the present invention has an outer periphery of a cam groove for raising and lowering the chute shaft formed on the outer surface and engaged with the cam follower of the chute shaft above and below the fixed cylindrical cylinder. Since the fixed guide cylinder provided on the surface is fixed, the rotary cylinder can be arranged close to the base, thereby reducing the overall height of the sealing mechanism and further shortening the chute shaft. It is possible to downsize the powder filling and packaging machine.
[0057]
If the chute turning guide provided with the chute turning guide groove for guiding the rotor of the chute shaft is arranged at the upper part of the cylindrical base, the chute shaft can be shortened and the entire powder filling and packaging machine It is possible to further reduce the size.
[0058]
The sealing unit has a fixing portion for removably fixing to the outer surface of the rotating cylinder, a chute shaft holding portion for penetrating and holding the chute shaft in a vertically movable manner on the upper portion, and a protrusion for fixing the sealing bar If the unit main body is included, the attachment to the rotating cylinder and the integration of the chute and the sealing bar can be easily achieved.
[0059]
The fixed guide cylinder is divided into a ring main body including a lower surface portion of the cam groove for raising and lowering, and a ring mounting member that is detachably disposed on the upper portion of the ring main body and has the upper surface portion of the cam groove. In this case, when the sealing unit is attached to and detached from the rotating cylinder, the cam follower can be easily attached to and detached from the cam groove.
[0060]
The rotating container of the powder cutting device is supported by a support column provided on the outside of the cylindrical base so as to be able to turn through a horizontal arm that can be turned. If the gear is installed in a rotatable manner via a conductive member, the area directly above the sealing filling mechanism becomes spatially wide, making it easier to perform inspections and repairs of the sealing filling mechanism, especially avoiding rotating containers. As a result, a space is provided, and the replacement operation of the sealing unit can be facilitated.
[Brief description of the drawings]
FIG. 1 shows a partial longitudinal sectional view of a powder filling and packaging machine provided with a sealing filling mechanism according to an embodiment of the present invention.
FIG. 2 shows a perspective view (A) and a cross-sectional view (B) of a sealing unit used in a sealing filling mechanism according to an embodiment of the present invention.
FIG. 3 is a perspective view in which a sealing unit used in a sealing filling mechanism according to an embodiment of the present invention is fixedly disposed on a rotating cylinder.
FIG. 4 is a partial longitudinal sectional view of another powder filling and packaging machine provided with a sealing filling mechanism according to an embodiment of the present invention.
FIG. 5 is an exploded sectional view showing a separated state of the sealing unit of the sealing filling mechanism according to the embodiment of the present invention.
FIG. 6 shows a partial longitudinal sectional view of another powder filling and packaging machine equipped with a sealing filling mechanism according to another embodiment of the present invention.
FIG. 7 is a partial longitudinal sectional view of a conventional powder filling and packaging machine.
FIG. 8 is a schematic front view (A) of a conventional powder filling and packaging machine, and a diagram (B) showing a flow of a film.
[Explanation of symbols]
1 Sealing filling mechanism
10 Filling mechanism body
11 Cylindrical base
13 Rotating cylinder
14 Support cylinder
17 Cam Ring
171 Cam groove
2 Sealing unit
20 Ceiling bar
20a fixed heating bar
20b Tilt seal bar
3 Shoot
33 arm
34 Shoot axis
4 Unit body
41 Fixed part
42 Protrusion
44 Chute shaft holder
45 Sliding hole
6 Powder fixed quantity cutting device
61 Rotating container
64 枡
7 Hopper
71 prop
79 Rotating shaft

Claims (8)

A fixed cylindrical base, a rotating cylinder that is rotatably arranged on the outer periphery of the cylindrical base via a bearing, and a large number of fixed fixed to the outer surface of the rotating cylinder at regular intervals In a powder filling and packaging machine comprising a sealing bar and the same number of chutes for powder filling arranged to be movable up and down on the upper part of the rotating cylinder,
One sealing bar and one corresponding chute are integrated to form a sealing unit, and a desired number of sealing units are detachably fixed to the outer peripheral surface of the rotating cylinder at equal intervals. Includes a chute shaft disposed on the upper portion of the ceiling bar unit so as to be vertically movable, and a cam follower fixed to the lower portion of the chute shaft,
A fixed guide cylinder having a cam groove for raising and lowering the chute shaft formed on the outer surface and guided vertically by engaging the cam follower of the chute shaft is fixed to the upper side of the fixed cylinder. A powder filling and packaging machine. A rotator is provided at the lower end of the chute shaft via a crankshaft, and a chute turning guide provided with a chute turning guide groove for guiding the rotor of the chute shaft is provided at the upper portion of the cylindrical base. The powder filling and packaging machine according to claim 1, wherein the powder filling and packaging machine is fixed around a rotating shaft of the rotating cylinder. The sealing unit has a fixing portion for detachably fixing to the outer surface of the rotating cylinder, a chute shaft holding portion for penetrating and holding the chute shaft in a vertically movable manner on the upper portion, and a protrusion for fixing the sealing bar The powder filling and packaging machine according to claim 1 or 2, comprising a unit main body. The fixed guide cylinder includes a ring main body including a lower surface portion of the cam groove, and a ring mounting member that is detachably disposed on an upper portion of the ring main body and has an upper surface portion of the cam groove. The powder filling and packaging machine according to any one of 1 to 3. The sealing unit is movable up and down by inserting a cam follower mounting member shaft that covers the cam circumferential groove of the fixed guide cylinder fixed to the upper part of the cylindrical base and supports the cam follower at the lower end of the chute shaft. The powder filling and packaging machine according to any one of claims 1 to 4, further comprising a guide plate having a vertically long slot for guiding the cam follower. 6. A rotating shaft for rotationally driving a rotating container of the dust cutting device is disposed through the hollow portion of the cylindrical base and connected to the bottom of the rotating container to support the rotating container. The powder filling and packaging machine according to any one of the above. The powder filling and packaging machine according to any one of claims 1 to 5, wherein a rotary shaft that rotationally drives a rotary container of the powder cutting device is disposed outside the rotary cylinder. The rotating container of the powder cutting device is supported by a support column standing outside the cylindrical base through a rotatable horizontal arm so that it can be rotated. The powder filling and packaging machine according to any one of claims 1 to 5, wherein the powder filling and packaging machine is rotatably connected to a gear provided on the conductive member via a conductive member.

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