JP4878911B2 - Packaging equipment - Google Patents

Description

The present invention relates to a packaging device for bagging and sealing powder and small object aggregates by a conveyor system.

As a bagging and packaging machine that conveys each packing bag along the conveyor line at equal intervals, and sequentially fills the packing object with respect to each packing bag and seals the opening edge of each packing bag, As shown in Patent Document 1, a large number of clamps are arranged at equal intervals around a circular rotor, and each of the clamps is intermittently rotated integrally with the rotor, and is attached to each wrapping bag sandwiched between the clamps. In addition, there is a device that sequentially fills the objects to be packaged and welds the opening edge of each wrapping bag sequentially with a sealer. However, the apparatus uses various sections in a wide space around the rotor to perform various operations. It is uneconomical as a packaging machine that can complete the work as long as it has a section for removing a bag by a clamp, a section for filling a bag into a bag, and a seal section for a bag opening by a sealer. There is a problem in that.

  On the other hand, the following Patent Document 2 discloses a packaging device that transports a wrapping bag along a straight track and shares the packaging work in three sections of the transport track. 1, refer to FIG. 2), the package bag sandwiched by the first clamp in the bag supply section 2 is transferred to the opening section by the transfer means 3, and the bag 8 is opened and sealed by the opening means 2 of the section. After being sent to the device 5 and filled in the packaging bag from the weighing device 6, the opening of the packaging bag is sealed with the sealing device 5. The problem with this device is that the packaging bag is wide. Since the filling device 6 cannot be installed in the opening section 4 because it is laterally fed in the direction, the weighing of the items to be packaged and the sealing of the bag opening are performed in one section. Improved to increase There is earth.

Japanese Patent Laid-Open No. 9-95311 JP-A-8-258801

The present invention is an apparatus for solving the above-mentioned problems, wherein the bag removing section, the filling section, and the sealing section are set on a linear track, and reciprocated between the bag removing section and the filling section. A first clamp for transporting the bag sandwiched in the bag removal section to the filling section, and receiving and clamping both side edges of the bag from the first clamp in the filling section, and for filling the package A pair of intermediate clamps on both sides of which are opened close to each other, and reciprocates between the filling section and the seal section in synchronization with the reciprocating movement of the first clamp, and is received from the intermediate clamp in the filling section. A pair of second clamps for transporting the wrapping bag to the sealing section, and for filling the wrapping bag into the wrapping bag in the filling section The lift plate is pushed up from the lower side of the wrapping bag, and the wrapping bag is transferred from the lifting plate to the deck plate installed in the sealing section in accordance with the transportation from the filling section of the wrapping bag to the sealing section by the second clamp. A back push bar adapted to be extruded, and means for tensioning the opening edge of the bag by a second clamp between the sealers in the seal section;
The first and second clamps carry the wrapping bag so that the bases are slidably supported by a pair of horizontal guides on both sides of the linear track carrying the wrapping bag, and the two horizontal guides intersect the horizontal guides respectively. A two-stage slide block composed of an upper first plate and a lower second plate, which is displaceable in the direction to be moved, is installed, and a first clamp is fixed to the lower second plate, while the upper first plate A second clamp is secured to the plate and reciprocating of the base along a horizontal guide causes the first clamp between the bag take section and the filling section and the first clamp between the filling section and the sealing section. The two clamps are reciprocally moved.

The apparatus sets a bag take section, a fill section, and a seal section on a linear track while reciprocating between the bag take section and the fill section, and synchronized with the first clamp And a pair of second clamps reciprocating between the filling section and the seal section, and a pair of intermediate clamps on both sides of the filling section. After the bag sandwiched by the first clamp in the bag removing section is transported to the filling section by the first clamp and delivered to the intermediate clamp, the same pair of intermediate clamps are relatively close to each other, Open the enveloping bag to receive the filling of the package from the filling machine and raise the lift plate from the lower area of the enveloping bag to the same height as the deck plate of the lower area of the seal section, and then the intermediate clamp The handbag is transferred to the second clamp, and then the second clamp is used to move the bag to the seal section and to synchronize with the movement of the second clamp to the seal section. The package on the lift plate is moved along the deck plate by moving the back push bar installed on the seal plate. Deployment is to push up.

  In short, the first clamp serves to carry the wrapping bag into the weighing and filling machine, while the second clamp carries out the wrapping bag that has been filled from the weighing and filling machine, respectively. Are synchronously reciprocated in the same direction, and the intermediate clamp is reciprocated in the width direction of the wrapping bag to open the wrapping bag in preparation for filling the wrapping material. Therefore, since the roles are divided between carrying the wrapping bag by both the first and second clamps and the opening of the wrapping bag by the mediating clamp, the work efficiency is improved accordingly, and the back push rods protruding from both sides are filled. It reciprocates between the section and the seal section to assist the movement of the heavy bag.

  The `` motor '' described in the claims is a name for the direct-acting fluid cylinder described in the embodiment, but the one that changes the rotational power of the power device to linear reciprocating motion by, for example, crank or screw rod screw operation, It corresponds to the above-mentioned “motor” and can be used properly according to all conditions.

  In the simplified FIG. 1, the bag removing section 13, the filling section 14, and the seal section 15 are set at equal intervals on a linear track for carrying the bag, and the first clamp 11 is connected to the bag removing section 13. The second clamp 12 reciprocates between the filling section 14 and the seal section 15 in synchronism with the first clamp 22. To do.

More specifically, as shown in FIG. 2 showing a plan view and FIG. 3 showing a side view, there is a fixed frame frame 16 having four pillars at four corners, which are provided on the shelf surfaces on both sides inside the frame frame. A slide block 18 is disposed on each of the pair of horizontal guides 17, and a pair of the first clamps 11 are provided at the ends of the arms 19 protruding from the slide blocks 18, and a pair of the second clamps are provided on the slide block itself. 12 are arranged. Therefore, by applying a swinging motion of the swing lever 20 around the upper end to the slide block 18 and reciprocating the slide block 18 along the horizontal guide 17, both clamps 11 and 12 in FIG. A reciprocating synchronized movement as indicated by arrows 21 and 22 occurs.

In addition, when the apparatus which supplies the packaging bag 10 to the 1st clamp 11 according to the reciprocating motion of the 1st clamp 11 in FIG. 1 is demonstrated, the arm 26 which rotates the suction cup 24 by the arrow track | orbit 25, and a packaging bag are guide | induced. In order to do this, the suction cup 24 adsorbs the opening edge of each wrapping bag that slides as indicated by an arrow along the guide wall 27, and has a corner of the wrapping bag. As a result of intermittently carrying in the direction of the first clamp 11 along the arrow 25, the pair of first clamps 11 sandwich both side edges of the wrapping bag 10.

  As shown specifically in FIG. 4 by changing the shape, when the plate 29 provided with the suction cup 24 is rotated up and down through the arm 30 fixed to the shaft 29 by rotating the shaft 29 forward and backward with the operation lever 28, Since there is a difference in length between the arm 30 and the link 31, the sucker 24 rotates by a 90-degree angle regardless of the rotation angle of the arm 30 to displace the sachet 10 to be adsorbed from a horizontal plane to a vertical plane. To make it happen. Note that the same reference numerals in FIG. 1 as those in FIG. 1 are substantially the same as those in FIG.

FIG. 5 shows only one side of the pair of left and right slide blocks 18, and the first clamp 11 supported on the arm 19 described above is an actuator inside the block 34 by air pressure acting from the connection port 33. , The two open / close members constituting the first clamp 11 are opened up to 180 degrees, while the pair of interlocking gears 36 supported by the first plate 35 are moved by the linear motion of the motor 37. By relative rotation, the two members forming the second clamp 12 open and close. Normally, the distance between the pair of first clamps 11 on both sides separating the weighing and filling machine 50 is set to be constant, but the distance between the second clamps 12 is as follows to tension the opening of the bag. It is a configuration that changes.

  That is, like the slide block on the opposite side shown in FIG. 7, the slide block placed on the horizontal guide 17 includes the lowest base 40, the highest first plate 35 described above, and the second intermediate between them. The first and second plates 35 and 41 are coupled to each other so as to be slidable in the width direction of the bag 10. For this reason, when the first plate 35 is moved by the motor 38 fixed to the second plate 41 in FIGS. 5 and 6, the second clamp 12 supported on the first plate 35 is disposed in the filling section 14. Relative displacement towards the filling nozzle of the machine 50. The double motor 39 that connects the base plate 40 and the second plate 41 displaces the second plate 41 (see also FIG. 7) in two stages. The purpose of this two-stage displacement will be described later.

  Moreover, FIG. 7 shows the clamping location of each of the first clamp 11 and the second clamp 12 and the clamping location by the mediation clamp 51 on one side of the bag 10.

As shown in FIG. 8, the intermediate clamp 51 is supported by a movable frame 53 via a pair of interlocking gears 52, and the frame 53 is slidably supported by a rail 54 fixed to the frame frame 16. The bell crank 56 is reversed by the motor 55 in FIG. 7, and this reverse power is transmitted to the interlocking gear 52 via the link 57, so that the intermediate clamp 51 holds the illustrated position of the bag 10.

  In FIG. 9, when the first clamp 11 carries the wrapping bag 10 from the bag removing section to the filling section as indicated by an arrow 21, the intermediate clamp 51 that waits like an imaginary line receives the wrapping bag 10. Thereafter, the mediating clamp 51 relatively approaches along the arrow 60 to open the wrapping bag 10 and allow the wrapping bag to be filled with an object to be packaged. The first clamp 11 returns to its original position while the work to be packed is continued, and the second clamp 12 that moves in the direction of the arrow 61 in synchronization with the first clamp 11 Is received from the intermediate clamp 51, and then the package is carried out along the track 22. In this case, the first clamp 11 brings the next packaging 10 into the filling section. On the other hand, in the seal section, the second clamp 12 is relatively separated and tensions the opening edge of the wrapping bag 10.

  In short, the first clamp 11 serves to carry the wrapping bag 10 into the weighing and filling machine, while the second clamp 12 carries the wrapping bag 10 out of the weighing and filling machine, so that each reciprocates synchronously in the same direction. In the meantime, in the meantime, the intermediate clamp 51 reciprocates in the width direction of the wrapping bag 10 to open the wrapping bag 10 in order to prepare for filling of the package. Since the role sharing is achieved by carrying the wrapped bag by the first and second clamps 11 and 12 and opening the wrapped bag by the mediating clamp 51, the work efficiency is improved accordingly.

As shown in FIG. 10, a pair of L-shaped pipes 67 each provided with a vacuum cup 68 at each of the lower end opposing portions are pivotally supported via a pin 69 on a frame 66 suspended from a top plate 65, and the both pins A link 72 connects the levers 70 and 71 fixed to each . With the power applied to the lever 70, both the pipes 67 are rotated with the pin 69 as a fulcrum, and the wrapping bag 10 to which both the vacuum cups 68 are adsorbed is opened like a virtual line. The opening of the wrapping bag is an operation in cooperation with the opening operation of the wrapping bag 10 due to the displacement of the pair of intermediate clamps 51 in FIG.

  In FIG. 11, the guide hopper 73 provided in the metering filling machine 50 is movable up and down along the guide 74, and a lever 76 having the pin 75 as an axis is rotated by operating the rod 77, and the lever 76 is moved up and down. The movement of the guide hopper 73 is lowered toward the opened bag 10.

  As shown in FIG. 1, a horizontal lift plate 80 on the upper surface is installed in a lower area of the weighing and filling machine 50 via a motor 79 fixed to a support plate 78. The lift plate 80 rises to support the weight of the article to be packaged in accordance with the filling of the article to be packaged from the weighing and filling machine 50 into the packaging bag 10, and prevents the packaging bag from falling off the clamp due to the increase in weight. In the embodiment, the motor 79 is formed of a fluid cylinder. However, the lift plate 80 can be moved up and down by using the chain or rack moved up and down by a rotary motor.

  In FIG. 1, it is often impossible to transport a heavy object such as a rice grain package from the filling section 14 to the seal section 15 only by the clamping force of the second clamp 12. Therefore, the back push rod 90 protruding from each of the slide blocks 18 on both sides in FIG. 2 reciprocates along the horizontal guide 17 and between the filling section and the seal section to assist the movement of the heavy wrapping bag.

  That is, FIG. 12 shows the base 40 in a pair of slide blocks on both sides, and illustrates the attachment relationship of the back push rod 90 to the base 40. A columnar block 91 is provided at one corner of the base 40. The back push rod 90 is swingable up and down via a pin 95 at the lower end of a bearing plate 94 that is pivotally supported via a longitudinal axis 92 and fixed to a side surface of the columnar block 91 via a connecting member 93. On the other hand, a lower end of a piston rod of a hanging cylinder 97 fixed to the columnar block 91 via a bracket 96 and one end of the back push rod 90 are connected via a universal joint 98.

  In short, when the second clamp 12 in FIG. 1 moves along the arrow 22, the back push bar also moves from the filling section 14 to the seal section 15 and lifts the package 100 on the lift plate 80 raised to the upper limit. It is possible to slide onto the deck plate 101 provided in the seal section 15 and to weld by pressing the opening edge of the package 100 with the pair of seal bars 102 in the section.

In FIG. 12, the back push rod 90 performs all-movements such as scooping the scissors by reversing the columnar block 91 forward and backward with the longitudinal axis 92 as a fulcrum by the fluid cylinder 99 supported by the base 40. In FIG. 2, the spacing between the back push bars 90 on both sides can be narrowed as shown by a solid line or can be changed as shown by a phantom line by the above-mentioned all movement, and the wrapping bag sent forward by the first clamp 11. Contrary to the feed movement, the pair of back push rods 90 whose intervals are changed to be wide can be moved to the rear of the wrapping bag without interfering with the wrapping bag supported by the intermediate clamp 51 . In addition, it is arbitrary to add the all-motion of the back push rod to the push-out action of the package by the back push rod 90 to feed the package.

Corresponding to the size of the width of the package 10 used in FIG. 6, the double motor 39 moves the second plate 41 in two stages, and the distance between the pair of first clamps 11 and the pair of second clamps 12 . The intervals can be adjusted in two stages simultaneously. In this case, in FIG. 7, the movable frame 53 is moved along the rail 54 by the rotation of the lever by the vertical axis member 105 to adjust the distance between the pair of intermediate clamps 51 on both sides.

The three types of motors 37 to 39 shown as examples in FIGS. 5 and 6 are all direct-acting fluid cylinders, but these can be changed to servo-type or rotary motors. By adjusting the angle, it is possible to control each clamp interval in accordance with the width of various sachets.

  In FIG. 13, three types of wrapping bags 10 having different sizes are indicated by phantom lines, and corresponding to the respective longitudinal dimensions of the respective wrapping bags, the above-described lift plate 80 and An apparatus capable of arbitrarily setting the position level of the support plate 78 supporting each deck plate 101 in the height direction is disclosed. In the case of the figure, since the height level of the opening edge of each wrapping bag 10 sandwiched by each clamp is constant, the height level of the deck plate 101 is adjusted according to the vertical length of each wrapping bag 10. .

  In FIG. 14, one end of the carry-out conveyor 111 and the engagement piece 112 protruding from the support plate 78 are coupled via a link 113, so that the support plate 78 corresponds to the size of the sachet to be used. Since the carry-out conveyor 111 rotates up and down around the shaft 114 at the other end, the deck plate 101 to the carry-out conveyor 111 can be moved up and down even if the support plate 78 is displaced up and down. The drop value of is almost constant. Therefore, there is no significant change in the degree of impact when the cylinder 117 is tilted as shown by the arrow 116 with the pin 115 as the axis to drop the package onto the carry-out conveyor 111, and the opening edge of the package immediately after the heat seal However, it is useful for reducing the phenomenon of peeling due to the weight impact of the package.

As shown in FIG. 15, the lower part of the bearing plate 94 is bent so as to incline downward from the filling section toward the bag removing section, and the back push rod 90 is pivotally supported by a pin 95 on the inclined surface 120 . The drooping cylinder 97 in FIG. 12 displaces the open end of the back push rod 90 up and down according to the height of the package, and the back push rod 90 is always at the upper and lower intermediate points according to the size of the package. In FIG. 15, it is necessary to push the open end of the back push rod 90 upward in the small package 100b compared to the large package 100a in FIG. The back push rod 90 rotating with reference to 120 protrudes forward as it moves upward, and automatically approaches the package 100b having a small thickness, and is specially adapted to the size of the package. It is possible to eliminate the need for adjustment.

Simplified side view of the device Plan view of the device Side view of the previous figure Packing bag feeder top view Slide block plan view Front view of the previous figure Front view of slide block including mediation clamp side Mediation clamp front view A perspective view explaining the movement of each clamp Side view of bag opening device Front view of the previous figure A perspective view explaining a back push rod Lift plate and deck plate front view Unloading conveyor side view Action illustration of back push bar

10 ... Package 11 ... 1st clamp 12 ... 2nd clamp 13 ... Bag removal section 14 ... Filling section 15 ... Sealing section 17 ... Horizontal guide 18 ... Slide block 35 ... 1st plate 36 ·········································································································································· 38 Motor 56 Bell bell 78 Support plate 80 Lift plate 90 Back push rod 91 Column block 92 Vertical axis 94 Bearing plate 95 Pin 96 96 Bracket 97 Cylinder 99 ... Fluid cylinder 100 ... Packaging

Claims (4)

The bag taking section, the filling section, and the seal section are set on a linear track, and the bag is reciprocated between the bag taking section and the filling section, and the package bag sandwiched by the bag taking section is conveyed to the filling section. And a pair of both sides for receiving and clamping the both side edges of the wrapping bag from the first clamp in the filling section and opening the wrapping bag by approaching the both side edges for filling the package A pair of second clamps for reciprocating between a filling section and a sealing section in synchronism with the reciprocating movement of the first clamp, and for conveying a sachet received from the intermediate clamp to the sealing section in the filling section; The lift plate is pushed from the lower side of the wrapping bag in accordance with the filling of the wrapping bag in the filling section. Means for raising, a back push bar that pushes the packing bag from the lift plate to the deck plate installed in the sealing section in accordance with the transport from the filling section of the packing bag by the second clamp to the sealing section; Means for tensioning the opening edge of the sachet by a second clamp between the sealers;
The first and second clamps carry the wrapping bag so that the bases are slidably supported by a pair of horizontal guides on both sides of the linear track carrying the wrapping bag, and the two horizontal guides intersect the horizontal guides respectively. A two-stage slide block composed of an upper first plate and a lower second plate, which is displaceable in the direction to be moved, is installed, and a first clamp is fixed to the lower second plate, while the upper first plate A second clamp is secured to the plate and reciprocating of the base along a horizontal guide causes the first clamp between the bag take section and the filling section and the first clamp between the filling section and the sealing section. A packaging device that reciprocates the two clamps. The distance between the first clamps and between the second clamps is adjusted by arranging a dual motor between the base and the lower second plate, and using the power of the dual motor, the upper first plate and the lower clamp. The packaging apparatus according to claim 1, wherein the second plates are moved together to adjust the interval between the first clamps and the interval between the second clamps separated by the linear track in accordance with the width of the packaging bag to be used. . The bag taking section, the filling section, and the seal section are set on a linear track, and the bag is reciprocated between the bag taking section and the filling section, and the package bag sandwiched by the bag taking section is conveyed to the filling section. And a pair of both sides for receiving and clamping the both side edges of the wrapping bag from the first clamp in the filling section and opening the wrapping bag by approaching the both side edges for filling the package A pair of second clamps for reciprocating between a filling section and a sealing section in synchronism with the reciprocating movement of the first clamp, and for conveying a sachet received from the intermediate clamp to the sealing section in the filling section; The lift plate is pushed from the lower side of the wrapping bag in accordance with the filling of the wrapping bag in the filling section. Means for raising, a back push bar that pushes the packing bag from the lift plate to the deck plate installed in the sealing section in accordance with the transport from the filling section of the packing bag by the second clamp to the sealing section; Means for tensioning the opening edge of the sachet by a second clamp between the sealers;
The back push bar is installed by pivotally supporting a columnar block via a vertical axis on each of the bases arranged on both sides of the straight track, and supporting the back push bar on each of the columnar blocks. Contrary to the feeding movement of the package that is fed forward, the interval between the back push rods protruding toward the linear track is changed to be wider by the rotation of the columnar block that is rotated by the power of the fluid cylinder, and forward A wrapping apparatus that moves the wrapping bag supported by the mediation clamp to the back of the wrapping bag without interference, contrary to the feeding movement of the wrapping bag that is sent out. Installation of the back push bar on the columnar block is a bracket provided on the upper end of the columnar block while the middle of the back push bar is pivotally supported up and down via a pin on a bearing plate hanging from the columnar block. And a drooping cylinder interposed between the inner ends of the back push rods, and a reverse movement of the base, a rotational movement of the columnar block by the fluid cylinders, and an up and down movement of the back push rod by the droop cylinders. The packaging device according to claim 3, wherein all motion is generated in the back push rod by rotational motion.