JP4512774B2 - Packaging machine - Google Patents

Description

  The present invention relates to a rotary packaging machine, and more particularly to a packaging machine that processes two packaging bags at the same time.

  Conventionally, as is well known, a rotary packaging machine processes each bag or every two bags, a bag feeding process of the packaging bag 1, a printing process, a packaging bag opening process, and filling of a filling material. Vibration is applied to the process and the packaging bag to prevent powdering of the top seal, powder detection, air venting, top sealing, cooling of the top seal, discharging of non-defective products, discharging of defective products, etc. Complete.

In the packaging bag supply process, it is necessary to change the sealing position depending on the size of the packaging bag.
Therefore, the packaging machine of the present application can cope with the change of the seal position by adjusting the swing angle (position adjustment) when the packaging bag is transferred from the second adsorbent to the auxiliary clamping claw.

The packaging machine according to claim 1 will be described based on an embodiment. The first swing shaft (6) and the position lever (35) are swung through a lever (32) reciprocated by a cam, and the wobbler is swung. The palpit (35a) is reciprocated. The second swing lever (15a) and the second swing shaft (15) are swung by the reciprocating motion of the swing rod (35a). A first connecting rod (10) is attached to the first swing lever (7) that swings on the first swing shaft (6), and a first connecting rod (10) is attached to the end of the first connecting rod (10). One adsorber (8) is attached.

A second connecting rod (19) is attached to the second swinging body (16) that swings through the second swinging shaft (15), and the end of the second connecting rod (19). Is attached with a second adsorbent (20). The packaging bag (1) placed on the elevating platform that can be raised and lowered is adsorbed by the first adsorbing tool (8) by the oscillation of the first oscillation lever (7), and the second oscillation body (16). ) Is transferred to the second adsorbent (20) by the first adsorber (8), and the adsorbing packaging bag is sub-clamped by the second adsorbent (20). Delivered to the nail (25).

In this packaging machine, in order to adjust the swing angle of the swing rod (35a), (a) to change the stroke of the swing rod (35a), the position lever (35) The fixing position of the formed long hole (35b) can be changed, and (b) adjustment is also possible by the adjustment knob (26) contacting the second swing lever (15a) during operation.

In the packaging machine of the present application, when the packaging bag is transferred from the second adsorber to the auxiliary clamping claw, the swing angle is adjusted (position adjustment) in addition to the adjustment by changing the stroke of the swing rod. It can also be done with the adjustment knob inside.

When the packaging machine of this Embodiment is demonstrated with reference to drawings, FIG. 1 shows the plane containing the partial fracture | rupture of a packaging machine.
This wrapping machine performs processing while rotating every two wrapping bags in order to increase the amount of processing per hour, and sandwiching arms 100 and 100 and sandwiching arms 101 and 101 are arranged. Bag supply process (1) of packaging bag 1, printing process (2), opening process of packaging bag (3), filling process of packaged article (4), prevention of powdering of top seal by applying vibration to packaging bag (5), powder detection (6), top seal (7), cooling and non-defective product discharge (8), defective product discharge mechanism (9).

(1) Adjustment of packaging bag width Various types of packaging bag width are selected depending on the filling amount of the filling material, etc., so it is necessary to cope with different packaging bag widths. Referring to FIG. 2 showing a plane, FIG. 3 showing an upper front cross-section, FIG. 4 showing a lower front cross-section, and FIG. 5 showing arrows A to A in FIG.

Since the packaging bag rotates intermittently while sandwiching every two packaging bags with the sandwiching arms 100, 100 and the sandwiching arms 101, 101, the width of the packaging bag between the sandwiching arms 100, 100 and the sandwiching arms 101, 101 is Adjustments are made together.
The intermittent rotation of each of the clamping arms 100 and 100 and the clamping arms 101 and 101 in each step is transmitted to the rotation main shaft 191 through an index 190 that converts the rotation of the main shaft (not shown) into intermittent rotation. The rotary support 192 is rotated.

Since the structure of the clamping arms 100 and 100 and the clamping arms 101 and 101 is well known, a brief description will be given. The clamping claw 105a and the clamping claw 105b are attached to the distal ends of the clamping arms 100 and 100 and the clamping arms 101 and 101. The clamping claw 105b is always maintained in a clamping state via the elastic body 104, and when the packaging bag held by the clamping claw 105b and the fixed claw 105a is dropped, the operation lever 103 is used to open the opening 102. This is done by pressing in the right direction.
The sandwiching arms 100 and 100 can be rotated by sandwiching shafts 106a and 106b fixed to the rotary support 192 via a right sandwiching lever 109a and a left sandwiching lever 109b. Are connected to each other via a tension spring 107 and are linked by a connecting member 108 so that the rotation directions of the sandwiching arms 100 and 100 are opposite to each other.
On the other hand, since the structure of the clamping arms 101 and 101 is also substantially the same, the same components are denoted by the same reference numerals and description thereof is omitted.

The left clamping lever 109b of the clamping arm 100 and the clamping arm 101 is rotatably connected by a connecting member 120, and the tip of the left clamping lever 109b of the clamping arm 101 is rotatable by a connecting shaft 121b. It is connected to a simple link body 121. The end of the link body 121 is connected to a width adjusting link body 126 that is rotated by a connecting shaft 121a. The width adjusting link body 126 is connected to a width adjusting disk 125 described later in detail. 126a is pivotably connected via 126a.
On the other hand, an opening / closing link body 122 is connected to the connecting shaft 121a of the link body 121, and a rotating opening / closing lever 123 is connected by a rotating shaft 123a. Further, an opening / closing roller 124 is attached to the end of the opening / closing lever 123, and slides and rotates with the opening adjusting disk 127.

The opening adjusting disk 127 adjusts the opening of the holding arms 100 and 100 (101, 101) via the opening / closing roller 124 corresponding to each process. Since the holding angle of 100, 100 (101, 101) is reduced and, conversely, after the filling material is stored in the packaging bag 1, it is in a closed state, so that the unevenness is formed so as to increase the holding angle.
That is, when reaching the convex portion of the opening adjustment disk 127, the opening / closing roller 123 rotates the opening / closing lever 123 in the clockwise direction, and the holding arm is held via the opening / closing link body 122, the link body 121, and the width adjustment link body 126. When the wrapping angle of 100, 100 (101, 101) is increased and the packaging bag is closed, on the contrary, when the recess is reached, the opening / closing lever 123 rotates counterclockwise and the nip angle is decreased. Open the packaging bag.

Next, a basic clamping angle adjustment mechanism of the clamping arms 100 and 100 (101, 101) will be described.
An end 150b of the operation lever 150 that can be horizontally swung by the fixed shaft 150a is rotatably attached to the width adjusting disk 125, and the width adjusting disk 125 is turned by the swinging of the operating lever 150.
The turning of the width adjusting disk 125 opens and closes the left holding lever 109b of the holding arms 100 and 101 via the width adjusting link body 126, the opening and closing link body 122, the opening and closing lever 123, and the link body 121. The basic opening degree (clamping angle) of the clamping arms 100 and 100 and the clamping arms 101 and 101 can be set, and the packaging bag 1 of various sizes can be handled.

Next, the swing mechanism of the operation lever 150 will be described. A connection rod 151 that reciprocates is connected to the operation lever 150 that swings horizontally by the fixed shaft 150a. An elevating lever 152 that can be moved up and down by 152A is connected.
Further, the end of the lift lever 152 is attached to a lift body 156 that is fitted to a slide bar 155 fixed to the main body so as to be liftable. Further, the elevating body 156 is formed with a screw 156a, and a screw 160a that is screwed to the screw 156a is screwed onto the opening / closing adjustment wheel 160.
Accordingly, when the opening / closing adjustment wheel 160 is rotated, the lifting / lowering body 156 is lifted / lowered via the slide rod 155, and the lifting / lowering lever 152 is rotated by the lifting / lowering. And the rotation of the raising / lowering lever 152 horizontally swings the operation lever 150 through the connecting rod 151.

Further, the opening / closing adjustment wheel 160 is coupled to an annular operation ring 161 provided on the outer periphery of the fixed column 42, and the operation ring 161 is provided with a sprocket 162 at the lower portion. In addition, a chain 163, a sprocket 164, an operation rod 165, and a handle 166 installed at a position operable from the machine side can be rotated.
Therefore, by rotating the handle 166, the operation ring body 161, the opening / closing adjustment wheel body 160, the elevating body 156, the elevating lever 152, the connecting rod 151, the operating lever 150, and the width adjusting disk 125 are rotated. Specifically, the holding angle between the holding arms 100 and 100 and the holding arms 101 and 101, that is, the width of the packaging bag 1 can be adjusted.
Since the handle 166 can be operated even when the clamping arms 100, 100 and the clamping arms 101, 101 are rotating, the width of the packaging bag can be maintained without stopping the packaging machine, that is, while continuously operating. Can be adjusted.

As described above, the width adjustment of the holding arms 100 and 100 and the holding arms 101 and 101 can be performed through the rotation of the sprocket 162. For this operation, the handle 166 installed on the machine side, a motor or the like is used. It can be carried out.
In other words, since the conventional operation position is provided on the rotating side of the holding arms 100 and 100 and the holding arms 101 and 101, the power wiring is installed through the inside of the support column when it is performed through a motor or the like. Or had to be done via a rotating brush.
However, according to the present invention, since the operation is performed not on the rotating side but on the stationary side (machine side), it can be easily operated via a motor or the like and can be adjusted even during operation. The filling operation can be automated.
In the above description, the structure of adjusting the width between the holding arms 100 and 100 and the holding arms 101 and 101 has been described. However, the holding arms 100 and 100 may be used alone.

(2) Packaging Bag Supply Mechanism This bag feeding mechanism is a process of adsorbing each stacked packaging bag to a bag feeding device and delivering it to the holding arms 100 and 101 attached to the packaging machine. 6, FIG. 7 which shows the front of FIG. 6 (BB), FIG. 8 which shows CC arrow of FIG. 6, and FIG. 9 which shows DD arrow of FIG.

Reference numeral 2 denotes a bag feeding device, and the packaging bag 1 is stacked on the lifting platform 3. The lifting platform 3 is controlled to be lifted by a lifting device (not shown) through a detector 4 that detects the position of the uppermost portion of the packaging bag 1.
The packaging bag 1 is adsorbed by a first adsorbing tool 8, and the first adsorbing tool 8 is attached to an oscillating body 9 that can be rotated by a fixed shaft 9a. The rocking body 9 is connected to the first rocking lever 7 fixed to the first rocking shaft 6 via a connecting rod 10 fitted with a spring 10a. It is possible to cope with the 1 mounting state (unevenness). The first swing shaft 6 is swung by a cam (not shown) via a lever 33 and an operating rod 33a. Therefore, as the first swinging lever 7 swings, the first suction tool 8 changes the suction state (8a, 8b) for sucking the packaging bag 1 in an inclined manner, as indicated by the broken line, thereby the stacking layer. It is adsorbed while separating the packaging bag 1.

Further, in the packaging bag 1 of the adsorbed first sucker 8 is passed to the second adsorbent 20, the second adsorbent 20, the second rocking to about 180 ° swung by a cam mechanism described later A second oscillating body 16 fixed to the shaft 15 is attached via a second connecting rod 19 .
Therefore, the packaging bag 1 is transferred from the first adsorbing tool 8 to the second adsorbing body 20, and then the second adsorbing body 20 is rotated through the second oscillating body 16 until it becomes almost horizontal, Delivered to the auxiliary clamping claws 25, 25.

Next, the swinging of the auxiliary clamping claws 25, 25 will be described. The inner turning shaft 34b is fitted with an outer turning shaft 34a that can be turned via a drive bush. In this manner, the installation location can be rationalized by fitting the inner rotation shaft 34b and the outer rotation shaft 34a.
A main lever 31 is fixed to the outer rotating shaft 34a, and the outer rotating shaft 34a is rotated by reciprocating a connecting rod 32a connected to the lever 32 by a cam mechanism (not shown). Then, the auxiliary clamping claws 25 and 25 are reciprocated between the solid line position and the broken line position via the main lever 31 (see FIG. 10).
A support rod 39 that can be rotated by the fixing portion 39a is connected to the main lever 31 and supports the tilt.
The lever 32 is connected via a connecting rod 32b to a position lever 35 that is rotated (idled) by the first swing shaft 6 . Meanwhile, the the second swing shaft 15 Yes fixed second pivoting lever 15a, the end portion of the second rocking lever 15a is a spring 24 to swing rod 35a of the connection to the position lever 35 It is inserted and connected, and a long hole 35b is formed in the connecting portion, so that the swing angle of the second swing lever 15a , that is, the height of the auxiliary clamping claws 25, 25 can be adjusted. It has become.

Further, an adjustment knob 26 fitted with a spring 26a for preventing loosening is provided so as to be able to contact the second swing lever 15a , and the swing of the adjustment knob 26 is similar to that of the long hole 35b. The swing angle of the lever 15a is selected, and this angle enables adjustment of the height of the auxiliary clamping claws 25, 25, that is, the position when the packaging bag 1 is received from the second adsorbent 20, so that various packaging The size of the bag 1 can be accommodated.
The adjustment knob 26 can be adjusted even during operation, unlike the adjustment by the long hole 35b. The spring 24 adjusts the position of the reciprocating movement of the rocking rod 35a with respect to the adjusted rocking angle of the second rocking lever 15a .

Next, the clamping mechanism of the auxiliary clamping claws 25, 25 will be described. The lever 30 is fixed to the inner rotation shaft 34b, and the cam is not shown in the figure, and the inner rotation shaft 34b is connected to the inner rotation shaft 34a. The moving shaft 34b rotates. Further, a lever 36 is fixed to the inner rotation shaft 34b, and a rotation support rotation rod 37b is rotated by a support body 37 via a link rod 36a and a lever 37a. The rotating rod 37b is provided with rotating rods (not shown) that can be alternately rotated in reverse via gears 37c, and the auxiliary clamping claws 25, 25 are attached to these rotating rods.
Accordingly, the auxiliary clamping claws 25 and 25 are clamped and released via the operation rod 30a, lever 30, inner rotation shaft 34b, lever 36, link rod 36a, lever 37a, rotation rod 37b, and gear 37c. .

As described above, the packaging bag supply step is performed after the packaging bag of the bag feeder 2 is first separated and adsorbed by the first adsorber 8 and delivered to the second adsorbent 20. Then, it is transferred to the auxiliary clamping nails 25 and 25. At the time of this delivery, the height of the auxiliary clamping claws 25, 25 can be adjusted by the adjustment knob 26, so that various seal positions can be accommodated.
Further, since the inner rotation shaft 34b rotated by the lever 30 is fitted to the outer rotation shaft 34a rotated by the lever 32, the installation location can be rationalized.
The packaging bag supply mechanism is a mechanism for adsorbing the stacked packaging bags 1 one by one on the lifting platform 3. Instead of the lifting platform 3, a conveyor bag feeding device (detachable type or the like) is used. The structure which adsorb | sucks the conveyed packaging bag for every sheet may be sufficient.

(3) Printing Mechanism This printing mechanism will be described with reference to FIG. 11 on the plane, FIG. 12 on the front, and FIG. 13 on the right side.
Reference numerals 60 and 60 denote printing machines corresponding to the two parallel packaging bags 1 and 1, which have a built-in head 61 that reciprocates by a cylinder (not shown). Print at the position.
The printing machine 60 can adjust the position so as to select a location to be printed on the packaging bag 1, and the height of the packaging bag 1 is adjusted by a lifting handle 63 attached to the base 64. .
The elevating handle 63 is connected to an adjusting screw rod 63a. The elevating handle 63 is inserted into the elevating table 65 and screwed into a fixed induction nut 65a at the lower end of the elevating table 65.
On the other hand, the elevating platform 65 is provided with rotating bodies 66a and 66b in a state of sandwiching the base 64, and fixed handles 67 and 67 capable of fixing the elevating platform 65.
For this reason, when the fixed handle 67 is loosened and the lift handle 63 is rotated, the lift base 65 is lifted and lowered via the guide nut 65a, and is fixed by the fixed handle 67 when it reaches a predetermined height.

An end portion of the lifting platform 65 is formed with an I-groove 68a that can be fitted into the connecting body 68 having a cross section I, and a slide groove 69 is formed on the upper surface in a direction parallel to the packaging bag 1. The lock handle 70 is inserted into the slide groove 69 and fixed to the coupling body 68 via a screw 70a. On the other hand, the slide body 72 to which the printing press 60 is attached is fixed to the connecting body 68 fitted in the I groove 68a of the connecting body with a bolt 73.
Accordingly, when the lock handle 70 is loosened, the slide body (printing machine 60) 72 can slide the I-groove 68a, and can be adjusted to the horizontal printing position of the packaging bag 1.
As described above, the printing machine 60 can easily adjust the printing position with respect to the packaging bag 1 of various sizes by the lifting handle 63 in the vertical direction of the packaging bag 1 and the slide body 72 in the horizontal direction. .

On the printing machine 60, a cylinder 76 with a position detector is attached to a support 75 fixed to the base 64, and a rubber 77 is attached to the rod of the cylinder.
The cylinder 76 is used to determine whether or not the packaging bag 1 is firmly held by the holding arm. When the packaging bag 1 comes into contact with the packaging bag 1 and stops at a predetermined position, the cylinder 76 is in a holding state, but further advances. Sometimes not pinched.
Therefore, when the packaging bag 1 is not sandwiched by the sandwiching arms by the detector, it is controlled not to store the stored items thereafter.
Further, a height position detector 78 (78a, 78b) of a photoelectric tube type or the like is provided on the upper side of the packaging bag via a support base 79, and detects the height of the packaging bag 1. Accordingly, when an abnormality is detected by the height position detector 78, control is performed so as not to store the stored items thereafter.

(4) Packaging Bag Opening Process This opening process includes a reciprocating mechanism that is operated from one side of the packaging bag 1 to open the sandwiched packaging bag 1 with the clamping arms 100 and 100 (the clamping arms 101 and 101). The adsorbents 301a and 302a (301b and 302b) that adsorb in a negative pressure state are opened from both sides of the packaging bag, and the adsorbers 301a and 302a are simply reciprocated horizontally at a position where they hit the holding arm 100 (101). Allows for adsorption openings.
That is, depending on the size of the packaging bag, the position where the adsorbents 301a and 302a adsorb may be the position where the rotating holding arm 100 (101) is abutted (see FIG. 14).
Therefore, the reciprocating mechanism in the opening process is configured so that the adsorbers 301a and 302a do not hit the holding arm 100 (101) even when the adsorbers 301a and 302a are located at the lower side of the packaging bag. It is.

Next, the reciprocating mechanism operated from one side of the packaging bag 1 will be described with reference to FIG. 14 showing a front cross-section, FIG. 15 showing a plan view, and FIG. 16 showing the left side of FIG. ) Is reciprocated by a fixed rotation shaft 306, and is connected to a sub-operation lever 306A that can be rotated by a fixed rotation shaft 306. An end 306a of the sub-operation lever 306A is fixed via a coupling body 303A. It is connected to a main operation lever 305A that is rotated by a rotation shaft 305a. The end 305b of the main operation lever 305A is connected to the moving body 308A via a connecting body 307.
The moving body 308A is slid on the guide body 309A and guided by the horizontal reciprocation, and is connected to the piston 310A. The piston 310A is formed so as to be capable of reciprocating in the cylinder 311. On the other hand, the cylinder 311 is supported by a bearing 314A fixed to the base 313 (stop body of the cylinder 311) and a slidable guide body 330. And reciprocates horizontally.
A U-shaped guide body 310a is attached to the tip of the piston 310A, and a boss 321a attached to the end of the operation body 321A (described later) is rotated around the guide body 310a via a pin 320. It is mounted movably. In addition, 310b is rubber | gum and acts as a cushion of the guide body 310a.

A boss 315 fitted to the piston 310A is fixed to the moving body 308A, and an elastic body 318 is inserted between the boss 315 and the cylinder 311. Further, a fixing member 323 is suspended from the cylinder 311, while a link body 324 is fixed to the boss 321 a of the operating body 321 </ b> A. The connecting body 325 is fixed by a fixed shaft 323a, and is connected to the link body 324 so as to be rotatable by a rotating shaft 325a. Therefore, when the piston 310A is protruded from the cylinder 311, the adsorbent 301a (301b) attached to the tip of the operating body 321A is lifted by a hinge mechanism in which the boss 321a is rotated counterclockwise by the rotation shaft 325a.
These adsorbents 301a and 302a are connected to a vacuum device (not shown) via independent suction pipes 327A and 327A ′ provided on the upper and lower sides, and even if one adsorbent cannot be adsorbed. Adsorption is possible without affecting other adsorbents.

On the other hand, the other end 306b of the operation lever 306A is connected to a moving body 308B via a connecting body 303B. The moving body 308B is connected to the sub piston 310B and slides on the guide body 309B. Then, it is guided by horizontal reciprocation.
The sub piston 310B can be reciprocated by a bearing 314B fixed to the base 313. An adsorbent body 301b (302b) is attached to the tip of the sub piston 310B via an attachment body 326B. is there.
These adsorbers 301b and 302b are connected to vacuum devices (not shown) via independent suction pipes 327B and 327B ′ provided on the upper and lower sides corresponding to the adsorbers 301a and 302a, respectively. Even if the adsorbent cannot be adsorbed, it can be adsorbed without affecting other adsorbents.

Next, the operation of the reciprocating mechanism configured as described above will be described with reference to FIGS. 14 and 17. In FIG. 14, the operation lever 304 moves forward and the adsorbent 301 a (301 b) is placed on both sides of the packaging bag 1. The adsorbent body 302a (302b) has a negative pressure through the suction pipes 327A and 327B, and the adsorbing body 301a (301b) adsorbs the packaging bag.
In this state, when the adsorber 301a (301b) is rotated, the adsorbent 301a (301b) hits the holding arm 100 (101).

Therefore, when the operation lever 304 is moved backward (downward in FIG. 14), the sub operation lever 306A is rotated clockwise by the fixed rotation shaft 306, and the main operation lever 305A is counterclockwise by the fixed rotation shaft 305a. Rotate. As a result, the cylinder 311 moves to the right in FIG. 14 via the moving body 308A, the piston 310A, and the elastic body 318, and moves the adsorbent 301a to the right.
Further, when the piston 310A moves, the cylinder 311 stops moving because the flange 311a formed at the rear end hits the contact portion 314a of the bearing 314A, but the piston 310A compresses the elastic body 318 and moves to the right. A movement difference occurs between 311 and the piston 310A.
Therefore, although the rotation shaft 325a of the link body 324 is stopped, the boss 321a connected to the link body 324 is moved (pressed) through the guide body 310a by the movement of the piston 310A, so that the hinge mechanism is configured. The boss 321a (link body 324) rotates counterclockwise around the rotation shaft 325a. As a result, the operating body 321A (the operating body 321A and the adsorbing body 301a) is inclined upward, and the adsorbing body 301a ′ is positioned above the holding arms 100 and 100 (the holding arms 101 and 101) as shown in FIG. Become.
As a result, the adsorbent body 301a moves in the disengagement direction from the adsorbent body 301b, and finally, the sandwiching arms 101 and 101 (clamping) that rotate above the clamping arms 100 and 100 (clamping arms 101 and 101). It is possible to avoid hitting the arms 100, 100).

On the other hand, due to the backward movement of the operation lever 304 (downward in FIG. 14), the secondary operation lever 306A rotates clockwise, and the moving body 308A moves to the left in FIG. The adsorbent 301b (302b) moves to the left via the piston 310B and moves away from the adsorbent 301a (302a).
As described above, in the reciprocating mechanism operated from one side of the packaging bag 1, the suction body 301a (302a) in the suction state moves upward in the direction of disengagement from the packaging bag, and the suction body 301b (302b) in the suction state moves upward. By detaching horizontally, the packaging bag is opened, so that it can be easily constructed and can be avoided without hitting the rotating holding arms 100, 100 (the holding arms 101, 101).
And in order to make the adsorbent 301a (302a) and the adsorbent 301b (302b) adhere to a packaging bag in order to open the packaging bag 1, the operation lever 304 is moved forward (raised in FIG. 14).

(5) Opening / closing plate mechanism This opening / closing plate mechanism is a mechanism that, when opened by a suction tool (not shown) provided on both sides of the packaging bag 1, conveys in a synchronized manner until the filling process while maintaining the opening state. 18 will be described with reference to FIG. 18 showing the front, FIG. 19A showing the partial plane (F-F arrows), and FIG. 19B showing the right side of FIG. The opening / closing plate mechanism processes two parallel packaging bags 1 at the same time.

An annular opening / closing plate shaft 41 built in the operation ring 161 is moved up and down and pivoted via a cam mechanism (not shown), and a column 42 is erected at the center of the opening / closing plate main shaft 41.
A first rolling element 44a is attached to the top of the column 42 via a first support body 43a, and the second rolling element 44b is also positioned via a second support body 43b at a position rotated by 90 °. Is attached.
A first wheel body 45a is rotatably mounted on the opening / closing plate main shaft 41, and the first wheel body 45a is rotatably connected to the first rod 47a via a bolt 46a. In addition, a first inclined derivative 48a having an inclined top is erected so as to be able to contact the first rolling element 44a.
In addition, the protrusion 49a is being fixed to the 1st ring body 45a, and the 1st ring body 45a is urged | biased clockwise via the torsion coil spring 50a, and the looseness of the 1st rod 47a is prevented. Further, a detection rod 51a is attached to the projecting body 49a. A detector (limit switch) 52a that can be detected via the detection bar 51a is fixed to the support bar 53 so as to rotate in synchronization with the opening / closing plate main shaft 41.

Therefore, as will be described in detail later, when the opening / closing plate is not inserted into the packaging bag 1 well, the detection piece 53a of the detector 52a contacts the detection rod 51a to detect.
A second wheel body 45b is attached under the first wheel body 45a, and the mechanism for reciprocating the second rod 47b via the second wheel body 45b is the same. The reference numeral (b) is attached and the description is omitted.

Further, the opening / closing plate main shaft 41 is provided with a rotation support 55 via a bolt 55b on a boss 55a. A support plate 55A is fixed to the rotation support 55, and a plate shaft 56 is provided on the support plate 55A. An opening / closing plate lever 57 and spring levers 58, 58 provided with opening / closing plates 54, 54 are rotatably attached to the plate shaft 56, and the opening / closing plates 54, 54 are always attached to the spring levers 58, 58. A weak spring 59 is attached to the open side.
The opening / closing plate lever 57 is connected to the first rod 47a, and opens and closes the opening / closing plates 54 and 54 by the reciprocating motion of the first rod 47a.
In addition, opening / closing of the opening / closing plates 54, 54 with respect to the other packaging bags 1 is operated through the second rod 47b with the same configuration as the opening / closing plate 54.

Next, the operation of the opening opening / closing plate mechanism will be described.
(A) FIG. 18 shows a state in which the process returns from the filling process to the opening process. When the opening / closing plate main shaft 41 further rotates to the opening process side, the opening / closing plates 54 and 54 rotate with the opening / closing plate main shaft 41. However, since the first inclined derivative 48a comes into contact with the first rolling element 44a and the rotation of the first wheel body 45a (first rod 47a) is stopped, the first rod 47a is pulled toward the opening / closing plate main shaft side. Thus, the open / close plates 54, 54 are closed.
(B) Next, when the opening / closing plate main shaft 41 is lowered, the opening / closing plates 54, 54 in the closed state are inserted while being lowered into the packaging bag 1 that is already open, and the opening / closing plates 54, 54 begin to open.
(C) When the opening / closing plate main shaft 41 is rotated in the reverse direction, the first inclined derivative 48a is detached from the first rolling element 44a, and the first wheel body 45a (first rod 47a) becomes freely rotatable, Although the opening and closing plates 54 and 54 are opened by the spring 59, the opening degree is regulated by the packaging bag 1.

However, when the opening / closing plates 54, 54 are not inserted into the packaging bag, the opening degree of the opening / closing plates 54, 54 is further increased, and the first rod 47 a is pulled away from the opening / closing plate main shaft 41.
Therefore, the first ring body 45a is rotated counterclockwise as compared with the normal state, the detection rod 51a contacts the detection piece 53a, and the opening and closing plates 54 and 54 are connected to the packaging bag via the detector 52a. Detects that it was not inserted properly.
(D) Next, when the opening / closing plate main shaft 41 is raised when the opening / closing plate main shaft 41 is rotated forward (clockwise) and the opening / closing plate main shaft 41 is raised, the closed opening / closing plates 54, 54 are opened by the spring 59. After that, the opening / closing plate main shaft 41 is reversed to return to the above-mentioned (A).

  As described above, when the two packaging bags are simultaneously rotated and conveyed from the opening process to the filling process, the first ring body 45a (first inclined derivative 48a) and the second ring body 45b (second inclined derivative 48b) are used. ) Is inserted into the opening / closing plate main shaft 41 up and down at a different angle, and the packaging bag is opened with a simple structure in which the first rolling element 44a and the second rolling element 44b are attached to the column 42 corresponding to the angle. Can be conveyed while maintaining the open state, and even when any of the opening / closing plates 54, 54 is not inserted into the packaging bag, each can be detected by the detectors 52a, 52b independently. .

(6) Filling mechanism This filling step is a step of filling the opening packaging bag 1 from the hopper 81 with the sandwiching arms 100 and 100 (the sandwiching arms 101 and 101), and refer to FIG. I will explain.
The base 82 is provided with a right support 83 whose height can be adjusted, and a lower part thereof is inclined toward the vertical center of the packaging bag 1. On the other hand, the left support body 84 can be adjusted in height position 86 and is opposed to the right support body 83 via a reciprocating drive device 85, with the lower portion being inclined toward the vertical center of the packaging bag. And the lower part is located in the substantially vertical center. That is, the right support body 83 and the left support body 84 have a reverse C-shaped support form, and can receive a filling material in an eccentric form from the vertical center of the packaging bag 1 to the right support body 83 side. Yes.
The drive device 85 is activated when the packaging bag 1 is filled, and the stop position of the left support 84 is set in advance in consideration of the size of the packaging bag and the type of filling material.
Reference numeral 87 denotes a vibration device, and the receiving tray 88 moves up and down by a cam mechanism (not shown), and comes into contact with and separates from the bottom of the packaging bag 1.

Next, the operation of the mechanism will be described. Immediately before the filling material is filled from the hopper 81, the packing material 1a is inclined with the left support 84 placed in the receiving position via the driving device 85. When the bag is dropped, it is guided to the right support body 83 and the left support body 84. After that, when the left support body 84 is returned to the original state via the driving device 85, the packaging bag 1 is in a vertical state and filled. Things reach the bottom.
Then, when the tray 88 is moved up and down by the vibration device 87, the filling is successfully stored in the vertical packaging bag 1.

As described above, the right support 83 and the left support 84 receive the packaging bag 1a once in the inclined form, so that the filling does not directly reach the bottom of the packaging bag 1 but the bottom portion. Will not be damaged.
For example, when filling dry noodles or the like, if the packaging bag is opened with the sandwiching arms 100 and 100 (the sandwiching arms 101 and 101) and the thin dry noodles are stored in the vertical packaging bag 1 as in the past, packaging is performed. A stab occurs in the bottom of the bag.
However, if the load is applied via the right support 83 and the left support 84, the load is temporarily stopped, so that the packaging bag is not damaged.
The right support 83 may be configured to reciprocate similarly to the left support 84, or a position (height and packaging bag position) between which the left support 84 and the right support 83 sandwich the packaging bag 1. Needless to say, the width is changed according to the filling.

(7) Air venting mechanism This air venting mechanism vents the air in the upper part of the packaging bag by holding the sandwiching rods 220a, 220b and the sandwiching rods 221a, 221b after the filling material is stored in the packaging bag 1 and before top sealing. FIG. 21 (A) showing a plane for processing two packaging bags at the same time, FIG. 21 (B) showing an X-X arrow, and FIG. 22 showing an Y-Y arrow. .

An operating rod 201 that moves up and down by a cam mechanism (not shown) swings an operating lever 202 that can freely rotate (idle) by a main rotating shaft 202A, and a connecting rod 203a is connected to the operating lever 202. On the other hand, a boss 205a is attached to the connecting lever 207a that rotates while being fixed to the sub-rotating shaft 207A, and a spring 206a is provided between the boss 205a and a flange 204a attached to the connecting rod 203a. It is inserted through a nut 218a. A swing lever 210a is attached to the sub-rotating shaft 207A, and a clamping rod 220a is attached to the swing lever 210a via a height adjustment knob 215a.
With the above mechanism, the reciprocating motion of the operating rod 201 rotates the auxiliary rotating shaft 207A and the connecting lever 207a via the operating lever 202 and swings the clamping rod 220a.

Further, a connecting body 211a is rotatably connected to the connecting lever 207a, and a swing lever 209a that freely rotates (idly rotates) by the main rotating shaft 202A is attached to the connecting body 211a. In addition, the other clamping rod 220b is attached to the swing lever 209a via a height adjustment knob 215a.
Therefore, the sandwiching rod 220b swings in the opposite direction to the sandwiching rod 220a by the connecting body 211a with respect to the swing of the connecting lever 207a.

Next, the mechanism of the other sandwiching rods 221a and 221b will be described, but it is configured symmetrically with the mechanism of the sandwiching rods 220a and 220b.
The operating rod 201 swings an operating lever 202 that can freely rotate (idle) by a main rotating shaft 202A, and a connecting rod 203b is connected to the operating lever 202.
On the other hand, a boss 205b is attached to the connecting lever 207b that freely rotates (idly rotates) by the sub-rotating shaft 207A. Is inserted through a nut 218b.

A swing lever 209b is attached to the connecting lever 207b, and a clamping rod 221a is attached to the swing lever 209b via a height adjustment knob 215b.
On the other hand, a connecting member 211b is rotatably connected to the connecting lever 207b, and a swinging lever 210b fixed and rotated by the main rotating shaft 202A is attached to the connecting member 211b. The other clamping rod 221b is attached to the moving lever 210b via a height adjustment knob 215b.

Therefore, the sandwiching rod 221b swings in the opposite direction to the sandwiching rod 221a by the connecting body 211b with respect to the swing of the connecting lever 207b.
With the above mechanism, the revolving movement of the operating rod 201 causes the main rotating shaft 202A and the connecting lever 207b to rotate via the operating lever 202, and the clamping rods 221a and 221b swing.

In the above mechanism, as long as there is no foreign matter in the packaging bag 1, the operation lever 202 that freely rotates on the main rotation shaft 202A by the reciprocating movement of the operation rod 201 is rotated by the connecting rod 203a that is inserted into the spring 206a. The auxiliary rotating shaft 207A is rotated, and the sandwiching rod 220a attached to the connecting lever 207a that rotates together with the auxiliary rotating shaft 207A is swung.
Further, with respect to the swing of the connecting lever 207a, the other side sandwiching rod 220b swings in the opposite direction by the connecting body 211a. That is, the operation of the connecting rod 203a is transmitted to the connecting lever 207a without being compressed by the spring 206a.
Therefore, the sandwiching rods 220a and 220b can sandwich the packaging bag and discharge the air.
Similarly, the packaging bag can be evacuated by the sandwiching bars 221a and 221b.

However, when the foreign matter in the packaging bag is present in the vicinity of the clamping position of either of the sandwiching bars 220a and 220b, the spring 206a is contracted and does not affect the movement of the connecting rod 203a. The rotation of 220b is stopped.
However, although the sub-rotating shaft 207A cannot be rotated, the connecting lever 207b attached to the sub-rotating shaft 207A can be freely rotated, and the swing lever 209b cannot be rotated. However, since the swing lever 209b is attached to the main rotation shaft 202A so as to be freely rotatable (idle), the main rotation shaft 202A can be rotated without being affected. Therefore, the connecting lever 207b and the sandwiching rods 221a and 221b rotated by the main rotating shaft 202A can be sandwiched, and the air of the packaging bag can be removed.

  On the other hand, when an abnormality occurs in any of the sandwiching rods 221a and 221b, the swing lever 209b that freely rotates on the main rotation shaft 202A and the sub rotation shaft 207A can rotate. The sandwiching rods 220a and 220b can sandwich the packaging bag and can release air.

As described above, the sandwiching rods 220a and 220b and the sandwiching rods 221a and 221b are attached to the main rotating shaft 202A and the sub-rotating shaft 207A in the opposite direction, so that even if trouble occurs in either one of them. The springs 206a and 206b can be cut and processed.
Therefore, the air venting mechanism that processes two packaging bags at the same time can independently stop the sandwiching bars 220a and 220b and the sandwiching bars 221a and 221b.

(8) Top seal mechanism The top seal mechanism will be described with reference to FIG. 23 showing a plane including a partially broken surface, FIG. 24 showing the front, and FIG.
Since this top seal mechanism is conveyed every two bags, the distance between the left heater 230 and the right heater 231 is larger than that of a single packaging bag when receiving two packaging bags 1 in consideration of the turning radius. Is necessary for a long time. However, when the separation distance is increased, the moving distance of the left heater 230 and the right heater 231 is increased, and as a result, the processing speed is reduced.
Therefore, in the present invention, a top seal mechanism in which the left heater 230 and the right heater 231 are moved to the vicinity of the packaging bag using a cam mechanism and then heat-sealed with a cylinder is presented to solve the above problem.
In addition, although the same top seal mechanism is paralleled corresponding to each packaging bag, the following demonstrates the top seal mechanism with respect to one packaging bag 1. FIG.

An upper slide body 235 is attached to the gantry 233 via a bearing 235a, and a lower slide body 236 is attached to the base 233 via a bearing 236a so as to be able to reciprocate. A left heater 230 is attached to the left end portion of the upper slide body 235, and a right heater 231 is attached to the left end portion of the lower slide body 236.
A pair of clevis-type cylinders 237 is fixed to the gantry 233, and a mounting plate 238 and a rotation lever 250 described later are fixed to the boss 238a on the rods 237a. The boomerang body 240 is fixed to the rotating lever 250 with a plurality of bolts 240a.
An upper puller 239 for moving the cylinder rod 237a horizontally and moving the upper slide body 235 is fixed to the mounting plate 238, and the upper slide body 235 is also connected via a bolt 239a. It is guided by a guide groove 241 formed in the lower slide body 236 through a protrusion attached to the lower end thereof.

The L-shaped rotation lever 250 is rotatably attached to the fixed shaft 250a, and an operation body 253 having a hole through which the link rod 251 can be inserted is provided above the rotation lever 250. Are connected by attaching a spring 252.
Further, a stop body 254 is fixed to the link rod 251 and abuts on the operation body 253 so that the rotation lever 250 can be rotated. The link bar 251 is connected to an operating rod 256 that reciprocates by a cam mechanism (not shown) via a link body 255 that can be rotated by a rotation shaft 255a.

  Further, the lower slide body 236 is guided through a guide groove 260 formed in the upper slide body 235 so that the lower pulling body 261 can be held in a vertical state. The lower pulling body 261 is connected to the lower end portion of the rotating lever 250 via the connecting body 263, and reciprocates the lower slide body 236.

Next, the operation of the top seal mechanism having the above configuration will be described. FIG. 24 shows a state in which the top seal is performed. From this state, when the operating rod 256 is pulled downward by a cam mechanism (not shown), the link rod 251 is interposed. As a result, the spring 252 contracts and the rotation lever 250 rotates counterclockwise. Therefore, the lower slide body 236 moves to the right via the connecting body 263 and the lower pulling body 261 connected to the rotation lever 250, and the right heater 231 also moves to the right.
On the other hand, the rotation of the rotation lever 250 is the rotation of the boomerang body 240 and moves the rod 237a of the cylinder to the left, and this leftward movement moves the upper slide body 235 through the upper pulling body 239. The left heater 230 is moved in the left direction and the left heater 230 is moved in the left direction.
As described above, when the operating rod 256 is moved downward, the right heater 231 and the left heater 230 are separated.

Next, when the packaging bag arrives at the top seal mechanism, if the operating rod 256 is moved up, the operation reverses to that described above, and the stop body 254 fixed to the connecting rod 256 presses the operating body 253 to rotate it. The moving lever 250 is rotated clockwise. Therefore, the lower slide body 236 moves to the left and the right heater 231 also moves to the left via the connecting body 263 and the lower pulling body 261 connected to the rotation lever 250.
On the other hand, the rotation of the rotation lever 250 is the rotation of the boomerang body 240 and moves the rod 237a of the cylinder to the right. This movement causes the upper slide body 235 to move to the right via the upper pulling body 239. The left heater 230 is moved in the right direction. At this stage, the left heater 230 and the right heater 231 are separated from each other, and the cam mechanism is configured not to heat seal the packaging bag 1. .

When top sealing is performed by a signal from a control device (not shown), the cylinder 237 is driven to slightly move the rod 237a of the cylinder in the right direction. This right movement of the cylinder rod 237a moves the upper slide body 235 to the right via the upper pulling body 239 and moves the left heater 230 to the right.
Further, the rightward movement of the cylinder rod 237a turns the boomerang body 240 and the turning lever 250, but the turning of the turning lever 250 causes the spring 252 to be contracted via the operating body 253, and the link rod 251 is moved. Does not affect movement. That is, it does not affect the operating rod 256 that reciprocates by a cam mechanism (not shown).
Then, the rotation of the rotation lever 250 moves the lower slide body 236 in the left direction via the connecting body 263 and the lower pulling body 261 and also moves the right heater 231 in the left direction.
As described above, by operating the cylinder 237, the right heater 231 and the left heater 230 come into contact with each other to perform heat sealing.

  This top seal mechanism is heat-sealed via the cam mechanism and the cylinder, so that even if the distance between the left heater and the right heater is large, the top seal mechanism can be surely and quickly approached and heat seal can be performed via the cylinder. The operation of whether or not to perform heat sealing is easy, the heat sealing time can be selected, and the processing time required for heat sealing can be quickly and reliably performed.

(9) Non-defective product discharge mechanism This discharge mechanism is a defective package in which a non-defective packaging bag is dropped or no filling bag is filled when the packaging bag does not open in the filling step, and then the top seal is not sealed. A mechanism for selecting whether to send the bag to the next process will be described with reference to FIG.
An operating rod 280 that moves up and down via a cam mechanism (not shown) swings a swinging lever 281 with a rotating shaft 281a, and an operating lever 282 connected to the swinging lever 281 via a connecting rod 289 is connected to the operating lever 281 described later. The main lever 285 swings on a support shaft 288 formed.
On the other hand, the T-shaped main lever 285 is rotatably attached to a rotation shaft 285A, and is pulled counterclockwise via a spring 283 at one end 285a, and the stop body 301 is provided. .

A spring bar 287 is provided upright on the left end portion of the operation lever 282 and a rotation shaft 297 is provided. A locking piece 290 is provided on the rotation shaft 297 and an end of the main lever 285. It is attached to the part so that engagement is possible. The locking piece 290 is always engageable with the main lever 285 by a spring 291 attached to the spring bar 287.
An L-shaped operating body 296 supported by a support roller 295 is attached to the end 285c of the main lever 285, and the operating body 296 is opened to open the holding arms 100 and 100. The body 102 can be pressed.
Further, in order to detach the locking piece 290 from the end 285b of the main lever, a detachable body 299 is rotatably attached to the fixed shaft 298, and the rod of the cylinder 300 is fixed to the detachable body 299. is there. Therefore, by extending the rod of the cylinder 300, the detachable body 299 disengages the locking piece 290 from the end 285b of the main lever.

Next, the operation of the discharging step will be described. As the operating rod 280 reciprocates, the operating lever 282 swings and the main lever 285 swings on the rotating shaft 285A via the locking piece 290. Then, the operating body 296 is reciprocated by the swinging of the end 285c of the main lever 285, and the opening body 102 is pressed to open the sandwiching arms 100, 100. Therefore, the packaging that is sandwiched between the sandwiching arms 100, 100 is performed. The bag 1 falls.
In this way, the packaging bag that has come to the discharging step can be dropped by the reciprocating motion of the operation rod 280.

However, in the case where the packaging bag is not dropped in this discharging process, but sent to the next process and dropped, the rod of the cylinder 300 is moved forward to release the locking piece 290 from the end 285b of the main lever. The main lever 285 is stopped by the stop body 301 via the spring 283.
Therefore, even if the operating rod 280 reciprocates, the main lever 285 does not swing, and the operating body 296 also does not move. As a result, the packaging bag does not fall and can be transported to the next process.

In the above, when the packaging bag is dropped again after performing the operation not to drop the packaging bag via the cylinder 300, the rod 280 of the cylinder 300 is returned to the original state (return). When the forward movement, the locking piece 290 engages with the end portion 285b of the main lever and swings the main lever 285. As described above, the operating body 296 is moved by swinging the end portion 285c of the main lever 285. Can reciprocate, press the opening 102, open the holding arms 100, 100, and drop the packaging bag.
As described above, it is possible to select whether to drop the packaging bag or send it to the next process by operating the cylinder 300.
In addition, although the operation in each of the above steps is mainly premised on the cam mechanism, it is needless to say that it may be configured to be operable via a cylinder or the like. However, it goes without saying that even if it is for processing one packaging bag, it can also be applied to a mechanism for simultaneously processing three or more bags.

It is a top view including a packaging machine partial fracture. It is a top view of a width adjustment mechanism. It is a top sectional view of a width adjustment mechanism. It is a bottom sectional view of a width adjustment mechanism. It is an AA arrow line view of FIG. It is a top view of the supply mechanism of a packaging bag. It is a BB arrow line view of FIG. It is CC arrow line view of FIG. FIG. 8 is a view taken along arrows D to D in FIG. 7. It is an effect | action figure of a sub clamping nail | claw. It is a top view of a printing mechanism. It is a front view of a printing mechanism. It is a right view of a printing mechanism. It is a figure which shows the front cross section of the reciprocation mechanism which opens a packaging bag. It is a figure which shows the plane of the reciprocation mechanism which opens a packaging bag. It is a figure which shows the right side surface of the reciprocation mechanism which opens a packaging bag. It is a figure explaining the effect | action of the reciprocating mechanism which opens a packaging bag. It is a front view of an opening-and-closing plate mechanism. (A) is a F-F arrow view, (B) is a right view of FIG. It is a front view of a filling mechanism. (A) is a top view of an air vent mechanism, (B) is a X-X arrow directional view. It is a YY arrow view of an air vent mechanism. It is a top view of a top seal mechanism. It is a front view of a top seal mechanism. It is a H-H arrow front view. It is a front view of a good quality discharge mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging bag 8 1st adsorption tool 15a Oscillation lever 20 2nd adsorption body 24 Spring 25 Sub clamping nail 26 Adjustment knob 34a Outer rotation shaft 34b Inner rotation shaft 35 Position lever 35a Oscillation rod 35b Long hole 41 Opening / closing plate Main shaft 42 Post 44a 1st rolling element 44b 2nd rolling element 45a 1st ring body 45b 2nd ring body 47a 1st rod 47b 2nd rod 48a 1st inclination derivative 48b 2nd inclination derivative 54 Opening and closing plate 55 Rotating support body 57 Opening / closing plate lever 58 Spring lever 60 Printing machine 63 Lift handle 68a I groove 70 Lock handle 72 Slide body 83 Right support body 84 Left support body 100, 101 Holding arm 109a Right holding lever 109b Left holding lever 120 Connecting member 121 Link body 123 Opening / closing lever 124 Opening and closing roller 125 Width adjusting disk 126 Width adjusting link body 150 Operation lever 151 Connecting rod 152 Lowering lever 156 Lifting body 160 Opening / closing adjustment wheel body 202A Main rotating shafts 203a, 203b Connecting rods 206a, 206b Spring 207A Sub rotating shafts 207a, 207b Connecting levers 209a, 209b, 210a, 210b Oscillating levers 211a, 211b Connecting body 220a , 220b Clamping rod 221a, 221b Clamping rod 230, 231 Heater 237 Cylinder 280 Operation rod 281 Swing lever 282 Operation lever 285 Main lever 290 Release piece 300 Cylinder 301a, 301b, 302a, 302b Adsorber 310A Piston 311 Cylinder 318 Elastic body 314A Bearing (stop body)
321A operation body

Claims (1)

The first oscillating shaft (6) and the position lever (35) are oscillated through the lever (32) reciprocated by the cam, and the oscillating rod (35a) is reciprocated. The second rocking lever (15a) and the second rocking shaft (15) are rocked by the reciprocating motion, and the first connection is made to the first rocking lever (7) rocking by the first rocking shaft (6). A hook (10) is attached, a first suction tool (8) is attached to the end of the first connecting rod (10), and a second rocking body (16) is rocked via the second rocking shaft (15). ), The second connecting rod (19) is attached, the second adsorbent (20) is attached to the end of the second connecting rod (19), and the packaging bag (1) placed on the lifting platform that can be raised and lowered is When the first swinging lever (7) swings, it is sucked by the first suction tool (8), and when the second swinging body (16) swings, the first suction tool (8) sucks it. A packaging machine having a bag feeding mechanism for delivering the packaging bag to the second adsorbent body (20) and delivering the adsorbing packaging bag to the auxiliary sandwiching claw (25) with the second adsorbent body (20). (A) In order to change the stroke of the swing rod (35a), the fixed position of the long hole (35b) formed in the position lever (35) is changed to swing the swing rod (35a). The angle can be adjusted, and (b) the swing angle of the swing rod (35a) can also be adjusted by the adjustment knob (26) contacting the second swing lever (15a) during operation. A packaging machine characterized by being.