JP2011084328A - Packaging bags stacking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the productivity of a packaging bags stacking device wherein packaging bags supplied continuously at a given transport cycle on a plurality of transport lines are stacked up to prescribed numbers for respective transport lines. <P>SOLUTION: The packaging bags stacking device comprises: a primary accumulation part wherein the packaging bags supplied from a transport line are stacked up to a primary accumulation number of sheets N1; a secondary accumulation part wherein packaging bags are received from the primary accumulation part while packaging bags supplied from a transport line are further stacked up to a prescribed number of sheets N2; and a packaging bag groups carry-out device which receives the packaging bag groups accumulated at the secondary accumulation part, and while moving them at a given cycle to carry-out positions, carry-out the packaging bag groups to a subsequent process. After stacking of up to a prescribed number of sheets N2 has been made at the secondary accumulation part, packaging bags then supplied from a transport line are accumulated at a primary accumulation part, and while packaging bags are kept accumulated at the primary accumulation part to reach up to the primary accumulation number of sheets N1, packaging bag groups are shifted from the secondary accumulation part to the packaging bag groups carry-out device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention integrates packaging bags that are continuously supplied by a plurality of conveying lines in a certain conveying cycle, and accumulates a specified number of packaging bags for each conveying line, and collects the accumulated packaging bag set to a subsequent process. Relates to the device.

  2. Description of the Related Art Conventionally, in a packaging line for manufacturing a packaging bag filled with contents (see, for example, Patent Document 1), a packaging device that measures the contents to a predetermined amount, fills the packaging bag, and seals the packaging bag The continuous packaging bags are cut into a unit number, for example, one single bag, two single bags, three single bags, etc., and conveyed, and each packaging bag (each sheet) is conveyed on the conveyance line. An inspection device that discharges defective packaging bags from the conveyance line by performing weighing inspection, appearance inspection, etc., an accumulation device that accumulates a specified number of packaging bags supplied from the conveyance line to form a packaging bag set, and a packaging bag For example, a banding apparatus that performs banding is provided as a post-process for the set.

  In such a packaging line, in order to improve productivity, a plurality of conveying lines are provided, and in particular, the processing capacity of the packaging bag in the inspection device and the stacking device is enhanced.

Japanese Patent Laid-Open No. 50-19595

  In such a conventional packaging line, for each packaging bag that is continuously and sequentially conveyed, a weighing inspection and an appearance inspection are performed by an inspection device for each conveyance line, and defective packaging bags are removed from the conveying line. It will be discharged (removed). Therefore, in the stacking device, the timing at which the stacked packaging bags reach the specified number varies depending on the presence or absence of defective packaging bags on the transport line. For example, when a defective packaging bag is discharged in one transport line, when the number of stacked packaging bags supplied from another transport line in which there was no defective packaging bag has already reached the specified number, This means that the number of stacked packaging bags supplied from one transport line has not yet reached the specified number.

  The conventional packaging line employs an apparatus configuration in which a set of packaging bags collected up to a specified number for each conveying line by the accumulator is collectively transported to a subsequent process by a common moving device. Therefore, the packaging bags from one transport line that has not yet reached the specified number are removed from the stacking apparatus, and only the set of packaging bags that has reached the specified number are carried out to the subsequent process by a common moving device. Therefore, with respect to the conveyance line from which the defective packaging bag is discharged, there is a problem that the accumulation operation in the accumulation device is wasted and the productivity in the packaging line is lowered. Further, such a packaging line or stacking device is required to have a simpler device configuration.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and the packaging bags that are continuously supplied by a plurality of conveying lines in a certain conveying cycle are accumulated in a predetermined number for each conveying line, In packaging bag collection to carry out the packaging bag assembly to the subsequent process, even if defective packaging bags etc. are discharged on the transport line, the packaging bag is efficiently collected and transferred to the subsequent process. An object of the present invention is to provide a packaging bag stacking apparatus capable of improving productivity by efficiently carrying out the packaging bag group.

  In order to achieve the above object, the present invention is configured as follows.

  According to the first aspect of the present invention, the packaging bags continuously supplied by a plurality of conveyance lines in a constant conveyance cycle are accumulated in a specified number for each conveyance line, and the accumulated packaging bag set is processed as a post process. In the packaging bag stacking device to be carried out, a packaging bag supply unit for sequentially supplying the packaging bags transported to the terminal position of the transport line individually to the stacking unit located below the terminal position, and below the packaging bag supply unit A primary stacking unit that stacks the packaging bags supplied from the packaging bag supply unit to a primary stacking number N1 that is less than the specified number N2, and a primary stacking unit that is positioned below the primary stacking unit. Receiving the packaging bag that has reached the number N1, and further collecting the packaging bags supplied from the packaging bag supply unit and collecting up to the specified number N2, and the packaging accumulated in the secondary accumulation unit Receive bag assembly at supply position An operation for moving the packaging bag assembly from the supply position to the unloading position in a certain cycle, and a packaging bag assembly carrying device for carrying out the packaging bag assembly to a subsequent process, and a packaging bag assembly accumulated in the secondary accumulation unit And a packaging bag assembly moving device for supplying to the supply position of the packaging bag assembly carrying-out device individually corresponding to each of a plurality of transport lines, and after being accumulated up to a prescribed number N2 in the secondary accumulation unit, The packaging bags to be supplied next from the supply unit are accumulated in the primary accumulation unit, and while the packaging bags are accumulated until the primary accumulation number N1 is reached in the primary accumulation unit, the secondary accumulation by the packaging bag assembly moving device is performed. Provided is a packaging bag stacking device characterized in that the movement of the packaging bag group from the section to the packaging bag group unloading device is completed so that the secondary packaging section can stack the next packaging bag. .

  According to the second aspect of the present invention, based on the supply number detection means for detecting the supply number of the packaging bags supplied from the packaging bag supply section, and the detection signal of the supply number of the packaging bags input from the supply number detection means. The primary stacking unit recognizes that the number of stacked packaging bags has reached the primary stacking number N1, and the secondary stacking unit recognizes that the number of stacked packing bags has reached the specified number N2, and from the primary stacking unit. A control device for controlling the timing of the operation of transferring the packaging bag to the secondary stacking unit and the timing of the movement operation of the packaging bag set from the secondary stacking unit to the packaging bag set-out device by the packing bag set moving device. A packaging bag accumulation apparatus according to one aspect is provided.

  According to the third aspect of the present invention, the packaging bag supply unit is provided at the terminal position of the conveyance line, supports the packaging bag conveyed in the closed state, and releases the support of the packaging bag by its opening operation. The first shutter that can be opened and closed to supply the packaging bag to the primary stacking unit located below, and the primary stacking unit supports and stacks the packaging bag supplied from the first shutter in a closed state. At the same time, it is a second shutter that can be opened and closed by releasing the support of the packaging bag by its opening operation and delivering the packaging bag accumulated in the secondary accumulation portion located below, and the second shutter is in the opened state When the packaging bag supplied from the first shutter is directly supplied to the secondary stacking unit, the packaging bag stacking apparatus according to the first mode or the second mode is provided.

  According to the fourth aspect of the present invention, the secondary stacking unit is a packaging bag receiving height position that is a position close to the primary stacking unit, and a position below the packaging bag receiving height position, and the packaging bag The packaging bag stacking device according to any one of the first to third modes, which is a lift device that can be moved up and down with respect to a moving height position at which the movement operation of the packaging bag set to the group carrying-out device is performed. provide.

  According to the present invention, in the packaging bag stacking apparatus that stacks the packaging bags continuously supplied from a plurality of transport lines for each transport line, after being stacked up to the specified number N2 in the secondary stacking unit, A configuration in which the integrated packaging bag assembly is supplied to the packaging bag assembly carrying-out device by the packaging bag assembly moving device, and the supplied packaging bag assembly is carried out to a subsequent process in a certain cycle in the packaging bag assembly carrying-out device. Is adopted. That is, in the secondary stacking unit, the stacking operation is performed until the number of packaging bags reaches the specified number (that is, the standby method is adopted), so that there is no shortage in the number of packaging bags stacked for each conveyance line. The packaging bag assembly accumulated in the prescribed number is carried out to the subsequent process via the packaging bag assembly carrying-out device. In addition, in the packaging bag assembling / unloading apparatus, the packaging bag assembling is carried out in a certain cycle regardless of whether or not the packaging bag assembling is arranged at the supply position. Is not affected by the unloading timing. Further, since the primary stacking unit is provided, the packaging bag assembly is carried out from the secondary stacking unit by the packaging bag assembly moving device while the packaging bags are being stacked until the primary stacking number N1 is reached in the primary stacking unit. The operation of moving the packaging bag set to the apparatus or other operations necessary for continuing the continuous accumulation operation can be performed. By continuously using the next stacking unit, a continuous stacking operation can be performed.

  Therefore, packaging bags that are continuously supplied in a certain conveyance cycle in a plurality of conveyance lines are accumulated in a specified number for each conveyance line, and in the packaging bag accumulation in which the accumulated packaging bag set is carried out to a subsequent process, Even when defective packaging bags etc. are discharged on the transport line, the packaging bags can be efficiently collected and the packaging bag set can be efficiently carried out to the subsequent process. It is possible to provide a packaging bag stacking apparatus that can improve productivity.

The schematic plan view which shows schematic structure of the packaging bag integration | stacking apparatus concerning one Embodiment of this invention. AA line sectional view in the integrated device of FIG. BB sectional view in the integrated device of FIG. CC sectional view in the integrated device of FIG. DD sectional view in the integrated device of FIG. The block diagram which shows the notional structure of the integrated device of this embodiment. Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment Schematic explanatory diagram explaining the integration operation in the integration device of the present embodiment

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is a schematic plan view showing a schematic configuration of a packaging bag accumulating device 1 (hereinafter referred to as “accumulating device 1”) according to an embodiment of the present invention. 2 is a sectional view taken along the line AA in the integrated device 1 of FIG. 1, a sectional view taken along the line BB is shown in FIG. 3, a sectional view taken along the line C-C is shown in FIG. The figure is shown in FIG.

  The stacking apparatus 1 according to the present embodiment defines, for each transport line, a packaging bag 2 that is sequentially and sequentially supplied from two rows of transport lines (first transport line L1 and second transport line L2) as a plurality of transport lines. Accumulated over the number N2, and the accumulated packaging bag set (packaging bags accumulated in the specified number N2) is transported to a subsequent process device (for example, a banding device, a car toner device, a horizontal pillow packaging device, etc.) It is a device to do. In addition, since each structural part with which the stacking apparatus 1 is provided for every system | strain of 2 rows of conveyance lines is the same, in the following description, the structure of one system | strain is demonstrated as a general rule.

  The packaging bag 2 handled by the stacking apparatus 1 is a packaging bag filled with contents, and is a packaging bag of various forms such as a single package sheet, a double package sheet, and a triple package sheet. Further, in the description of the present embodiment, in order to facilitate understanding of the description, the case where the stacking apparatus 1 is provided with two rows of conveyance lines will be described as an example. It may be the case where the number of rows of three or more conveyance lines is provided. In addition, as the contents filled in the packaging bag, various things such as pharmaceuticals, foods, solids, powders, and liquids can be applied.

  Prior to describing the detailed configuration of the integrated apparatus 1 of the present embodiment, the conceptual configuration will be described with reference to the block diagram shown in FIG.

  As shown in FIG. 6, the stacking apparatus 1 has a two-row system of a first transport line L1 and a second transport line L2. The stacking apparatus 1 includes a packaging bag supply unit 10, a primary stacking unit 20, a secondary stacking unit 30, and a packaging bag assembling / unloading device 40 as a system of the first transport line L1, and a system of the second transport line L2. As a packaging bag supply unit 50, a primary stacking unit 60, a secondary stacking unit 70, and a packaging bag assembling / unloading device 80. Hereinafter, the configuration of the system of the first transport line L1 will be described.

  The packaging bag supply part 10 is arrange | positioned in the terminal position of the 1st conveyance line L1, and packs the packaging bag 2 conveyed by the terminal position into the stacking part (the primary stacking part 20 and the secondary stacking) located under the terminal position. The stacking unit 30) is supplied individually and sequentially.

  The primary stacking unit 20 is located below the packaging bag supply unit 10, and the primary stacking number N1 (N1 and N2 are positive integers) less than the specified number N2 of packaging bags supplied from the packaging bag supply unit. Yes, N1 <N2.)

  The secondary stacking unit 30 is positioned below the primary stacking unit 20, receives the packaging bag 2 that has reached the primary stacking number N <b> 1 in the primary stacking unit 20, and is supplied from the packaging bag supply unit 10. Are directly accumulated and the packaging bags 2 are accumulated until the prescribed number N2 is reached.

  The packaging bag assembling / unloading device 40 is disposed, for example, adjacent to the secondary stacking unit 30 and receives the packaging bag set accumulated in the secondary stacking unit 30 at the supply position, and is transported at a constant cycle. The packaging bag assembly is brought into a state where it can be carried out to the post-process 100. A part of the packaging bag assembling / unloading device 40 is a common unloading portion 90 in the first and second transfer lines L1 and L2, and the common unloading portion 90 corresponds to each of the packaging bag assembling / unloading devices. This is a device for collectively unpacking the packaging bag set moved to the unloading position at 40 and 80 to the post-process 100 in a constant operation cycle.

  The packaging bag assembly moving device 31 (71) further supplies the packaging bag assembly accumulated in the secondary accumulation unit 30 (70) by moving it to the supply position of the packaging bag assembly carrying-out device 40 (80). It has been. Further, a supply sheet number detecting means 11 (51) for detecting the number of the package bags 2 supplied from the packaging bag supply unit 10 (50) is further provided.

  Further, the integrated device 1 is provided with a control device 9 that controls the operations of the respective components while associating them with each other. Based on the detection signal of the supplied number of packaging bags 2 input from the supplied sheet number detecting means 11, the control device 9 determines that the number of accumulated sheets of the packaging bags 2 has reached the primary accumulated number N1 in the primary accumulation unit 20, and Recognizing that the number of stacked packaging bags 2 has reached the specified number N2 in the secondary stacking unit 30, the delivery operation of the packaging bag 2 from the primary stacking unit 20 to the secondary stacking unit 30, and the movement of the packaging bag set The timing of the movement operation of the packaging bag assembly from the secondary stacking unit 30 to the supply position of the packaging bag assembly carrying-out device 40 by the device 31 is controlled. Further, the control device 9 is configured so that the packaging bag 2 to be supplied next from the packaging bag supply unit 10 is accumulated in the primary accumulation unit 20 after being accumulated up to the specified number N2 in the secondary accumulation unit 30. Control each stacking unit. In addition, the control device 9 allows the packaging bag assembly carry-out device 40 from the secondary accumulation unit 30 by the packaging bag assembly moving device 40 while the packaging bags 2 are accumulated until the primary accumulation number N1 is reached in the primary accumulation unit 20. The packaging bag assembly is moved to the supply position, and then the packaging bag assembly is moved in the secondary stacking unit 30 so that the next packaging bag 2 can be stacked, and the primary stacking unit. 20 to control the timing of the integration operation.

  A specific configuration example of the integrated device 1 having such a conceptual configuration will be described with reference to FIGS.

  As shown in FIG. 1 and FIG. 2, a pair of first shutters 10 that can be opened and closed as an example of the packaging bag supply unit 10 are provided at the terminal position P0 of the first transport line L1 of the stacking device 1. . The first shutter 10 is disposed at the same height as the transport height of the packaging bag 2 in the first transport line L1, and the lower surface of the packaging bag 2 transported to the end position P0 in the first transport line L1 While being supported in the closed state and being in the open state, the supported packaging bag 2 is dropped and supplied to the primary stacking unit 20. In FIG. 4, a first shutter 50 which is an example of the packaging bag supply unit 50 is shown. Further, the timing of the opening / closing operation of the first shutter 10 is controlled by the control device 9 so that the timing of the opening / closing operation of the first shutter 10 is synchronized with a certain conveyance cycle of the packaging bag 2 in the first conveyance line L1. . The first shutter 10 is opened and closed each time one packaging bag 2 is supplied.

  The primary stacking unit 20 employs a pair of second shutters 20 that can be opened and closed. Specifically, FIG. 2 and FIG. 4 (however, FIG. 4 shows a second shutter 60 which is an example of the primary stacking unit 60. The first shutter 20 and the second shutter 60 have the same configuration. 2), the second shutter 20 (60) is arranged below the first shutter 10 (50), and a pair of L-shaped members is formed by the shutter drive unit 21 (61). It has a structure that can be opened and closed. For the shutter drive unit 21 (61), for example, a drive mechanism using a cylinder and a rod is used.

  At the top of the second shutter 20, the lower surface of the packaging bag 2 supplied (supplied by dropping) from the first shutter 10 can be supported in its closed state until the primary accumulated number N1 is reached. The packaging bags 2 supplied from the first shutter 10 are stacked and accumulated. When the accumulated number of the packaging bags 2 in the second shutter 20 reaches the primary accumulated number N1, the shutter driving unit 21 drives the second shutter 20 from the closed state to the opened state, and the stacked packaging bags 2 are paired. Then, the operation of supplying the packaging bag 2 to the secondary stacking unit 30 is performed. Note that the supplied sheet number detecting means 11 can detect that the number of sheets accumulated by the second shutter 20 has reached the primary number N1. The supply number detecting means 11 may be any sensor that can count the number of the packaging bags 2, and for example, an optical detection sensor can be applied.

  The secondary stacking unit 30 (70) is disposed below the second shutter 20 (60), and moves up and down to support the stacked packaging bag 2 supplied (supplied by dropping) from the second shutter 20 (60). A possible lift device 30 (70) is employed. The lift device 30 (70) is a height near the support table 32 (72) that supports the packaging bag 2 and the second shutter 20, and receives the packaging bag 2 from the second shutter 20 (60). Lifting / lowering drive unit 33 (73) for raising and lowering the support table 32 (72) between the height position H1 and the moving height position H2 for moving the packaging bag assembly to the supply position of the packaging bag assembly carry-out device 40 (80). And. As such an elevation drive unit 33, a mechanism capable of smoothly raising and lowering and positioning the support table 32 at two height positions H1 and H2 can be applied, and a cylinder mechanism, a ball screw mechanism, or the like is applied. be able to.

  The lift device 30 receives the support table 32 by the lift drive unit 33 and is positioned at the height position H1, and the packaging bag in a state of being accumulated at the primary accumulation number N1 from the second shutter 20 that has been opened. Receive 2 and support. Furthermore, the lift device 30 allows the packaging bag 2 supplied (supplied by dropping) from the first shutter 10 to pass through the second shutter 20 in the open state, and supports the state in which the packaging bag 2 is positioned at the receiving height position H1. Receive and accumulate at table 32. When the number of stacked packaging bags 2 supported by the support table 32 reaches the specified number N2, the support table 32 is lowered by the elevating drive unit 33 and is positioned at the moving height position H2. It should be noted that the supplied sheet number detecting means 11 can detect that the number of stacked sheets has reached the specified number N2 on the support table 32. When it is detected that the number of sheets accumulated on the support table 32 has reached the specified number N2, the second shutter 20 in the open state is closed, and the packaging bag 2 is moved from the first shutter 10 to the second shutter 20. Will be supplied.

  As shown in FIG. 2, for example, a moving pusher device 31 that pushes and moves the packaging bag set in the horizontal direction is employed in the packaging bag set moving device 31. The moving pusher device 31 pushes the pusher 34 and the pusher 34 that pushes and moves the packaging bag set 3 accumulated on the support table 32 in the lift device 30 at the moving height position H2 from the horizontal direction. An extrusion driving unit 35 that moves in the horizontal direction is provided. For example, a cylinder mechanism or a ball screw mechanism can be applied as the push driving unit 35.

Further, in the moving pusher device 31, the packaging bag set 3 accumulated on the support table 32 of the lift device 30 is pushed out in the horizontal direction, and the packaging bag set 3 is moved to the supply position P 1 of the packaging bag set-out device 40. The operating range of the pusher 34 is determined as possible. Further, the movement operation of the packaging bag set 3 by the movement pusher device 31 is performed after it is detected that the support table 32 of the lift device 30 is located at the movement height position H2.

  As shown in FIG. 1 and FIG. 4, an unloading pusher device 40 that pushes and moves the unpacking bag assembly 3 in the horizontal direction is employed in the unpacking device 40. The carry-out pusher device 40 pushes the packaging bag set 3 positioned at the supply position P1 of the packaging bag set 3 from the moving pusher device 31 from the horizontal direction and moves it to the carry-out position P2, and a pusher 41. A push driving unit 42 for moving the bag horizontally, a support table 43 for supporting the packaging bag set 3 slidably moved from the supply position P1 to the carry-out position P2, and a position protruding from the upper surface of the support table 43, There is provided a pusher lifting / lowering portion 44 for raising and lowering the pusher 41 between a protruding height position H3 for pushing and moving the packaging bag set 3 and a storage height position H4 for storing the pusher 41 below the support table 43. Yes. When the packaging bag set 3 supported on the support table 43 is moved by the pusher 41, the pusher 41 is positioned at the protruding height position H3 by the pusher lifting / lowering portion 44, and the packaging bag set 3 is moved to the unloading position P2. Then, when the pusher 41 is returned to the supply position, the pusher 41 is positioned at the storage height position H4 to prevent interference with the packaging bag set 3 supplied next to the supply position P1. Note that a cylinder mechanism, a ball screw mechanism, or the like can be applied to the push driving unit 42 and the pusher lifting / lowering unit 44. FIG. 5 shows an unloading pusher device 80 which is an example of the packaging bag assembly unloading device 80 of the system of the second transport line L2. The carry-out pusher device 80 includes a pusher 81, an extrusion drive unit 82, a support table 83, and a pusher lifting / lowering unit 84.

  Further, in the carry-out pusher device 40, the control device 9 controls the drive operation of the pusher 41 by the push driving unit 42 so as to be performed in a constant cycle. That is, it is controlled so that the push-out operation by the pusher 41 is performed in a constant operation cycle regardless of whether or not the packaging bag set 3 is arranged at the supply position P1.

  As shown in FIG. 1, the unpacking pusher device 40 of the first transport line L1 system and the unloading pusher device 80 of the second transport line L2 system are used to wrap the packaging bag set 3 in a state positioned at each unloading position P2. A common carry-out section 90 is provided that horizontally moves all at once and carries out each packaging bag set 3 in the post-process 100.

  As shown in FIG. 3, the common carry-out portion 90 includes a pusher 91 having a U-shaped cross section that pushes the packaging bag set 3 in a state positioned at the two carry-out positions P <b> 2 and moves it horizontally, and a pusher 91. And a support table 93 that supports each packaging bag set 3 slidably moved from the unloading position P2 to a position on the supply line to the post-process 100, and an upper surface of the support table 93. The pusher 91 is moved up and down between a protruding height position H5 where the packaging bag assembly 3 is pushed out and moved and a storage height position H6 where the pusher 91 is stored below the support table 93. And a pusher lifting / lowering portion 94 to be moved.

  Moreover, in this common carrying-out part 90, the control apparatus 9 is controlled so that the drive operation of the pusher 91 by the extrusion drive part 92 is performed in a fixed operation cycle. That is, it is controlled so that the push-out operation by the pusher 91 is performed in a constant operation cycle regardless of whether or not the packaging bag set 3 is arranged at each carry-out position P2.

  In addition, as shown in FIG. 1, the moving direction of the packaging bag set 3 by the common carrying-out part 90 and the moving direction of the packaging bag set 3 by the moving pusher devices 31 and 71 are the first and second transport lines L1, It is the same direction as the conveyance direction of the packaging bag 2 in L2, and the moving direction of the packaging bag assembly 3 by the carry-out pusher devices 40, 80 is orthogonal to the conveyance direction of the packaging bag 2 in the first and second conveyance lines L1, L2. It has become a direction.

  Next, in the stacking apparatus 1 configured as described above, a series of stacking operations for stacking the packaging bags 2 sequentially and sequentially supplied from the transport line into the specified number N2, and transporting them to the subsequent process as the packaging bag set 3. Will be described with reference to schematic explanatory diagrams shown in FIGS. Note that the schematic explanatory diagrams of FIGS. 7 to 24 schematically show only the main configuration of the integrated device 1. As an accumulation operation in the accumulation device 1, an operation for accumulating the packaging bags 2 supplied from the first transport line L1 will be described as a representative. In the following stacking operation, a case where the primary stacking number N1 = 4 and the prescribed number N2 = 5 will be described as an example. Moreover, it is performed by the control device 9 controlling the operations of the respective components in association with each other.

  First, as shown in FIG. 7, in the stacking apparatus 1, the packaging bag 2 conveyed to the terminal position P <b> 0 on the first conveyance line L <b> 1 is supported by the closed first shutter 10. After that, as shown in FIG. 8, the first shutter 10 is opened, and the packaging bag 2 is dropped and supported by the second shutter 20 in the closed state. After supplying the packaging bag 2 to the second shutter 20, the first shutter 10 is immediately closed, and the packaging bag 2 to be supplied next in the first transport line L 1 is terminated as shown in FIG. Support at position P0. Thereafter, as shown in FIGS. 10 to 12, by repeating these operations, the four packaging bags 2 are accumulated on the second shutter 20 in the closed state. As shown in FIG. 12, when the four packaging bags 2 are stacked on the second shutter 20, the support table 32 is moved from the moving height position H2 to the receiving height position H1 in the lift device 30. It is assumed that

  When the supplied sheet number detecting means 11 detects that four packaging bags 2 (that is, the primary accumulated number N1) have been accumulated on the second shutter 20, the second shutter 20 is opened as shown in FIG. In this state, the four packaging bags 2 that have been collected are transferred from the second shutter 20 to the support table 32 that is positioned at the receiving height position H1. The support table 32 stands by at the receiving height position H1, and further receives and accumulates the fifth packaging bag 2 supplied from the first shutter 10, as shown in FIG. At this time, since the second shutter 20 is in an opened state, the fifth packaging bag 2 dropped from the first shutter 10 and the second shutter 20 are prevented from interfering with each other.

  When the supply number detecting means 11 detects that the five packaging bags 2 are accumulated on the support table 32 of the lift device 30, as shown in FIG. 15, the support table 32 receives the reception height position H1. And is moved to the moving height position H2. At the same time, the second shutter 20 is closed. As shown in FIG. 16, the packaging bag 2 supplied next from the first shutter 10 is supported by the second shutter 20. Even when the defective packaging bag 2 is discharged on the first conveyance line L1 and the packaging bag 2 is not continuously supplied temporarily, the supplied number detection means 11 always After it is detected that the prescribed number N2 (five) of packaging bags 2 are accumulated, the next operation such as the lowering operation of the support table 32 is performed.

  When it is confirmed in the lift device 30 that the support table 32 is positioned at the movement height position H2 and the packaging bag set 3 is not positioned at the supply position P1 of the carry-out pusher device 40, FIG. As shown, the pusher 34 of the moving pusher device 31 is driven to push out the packaging bag set 3 and move it horizontally, and the packaging bag set 3 is moved to the supply position P1 of the transfer pusher device 40. While the packaging bag set 3 is horizontally moved by the moving pusher device 31, the packaging bags 2 that are successively supplied from the first shutter 10 are collected on the second shutter 20. When the packaging bag set 3 that has been moved to the supply position P1 of the carry-out pusher device 40 is positioned, the next packaging bag is taken out after the packaging bag set 3 is carried out from the supply position P1. The timing of the movement operation of the packaging bag set 3 by the moving pusher device 31 is slightly shifted so that the set 3 is moved to the supply position P1.

  When the movement operation of the packaging bag set 3 to the supply position P1 is completed, the pusher 34 of the moving pusher device 31 is moved to the original position (position for pushing out the next packaging bag set 3) as shown in FIG. Returned. While the operation of moving the pusher 34 to the original position is being performed, the second shutter 20 sequentially performs the stacking operation of the packaging bags 2. After that, as shown in FIG. 19, the support table 32 of the lift device 30 is lifted from the moving height position H2 and positioned at the receiving height position H1. Since the pusher 34 of the moving pusher device 31 and the support table 32 of the lift device 30 are designed so as not to interfere with each other, the return operation and movement of the pusher 34 from the supply position P1 to the original position are performed. The raising operation of the support table 32 from the height position H2 to the reception height position H1 can be performed in an overlapping manner. Therefore, for example, when the timing of the movement operation of the packaging bag set 3 by the movement pusher device 31 is slightly shifted, the return operation of the pusher 34 from the supply position P1 to the original position, and the movement height The raising operation of the support table 32 from the vertical position H2 to the receiving height position H1 may be performed at the same timing. The setting of the primary accumulated number N1 in the second shutter 20 is preferably determined in consideration of the case where such an operation is performed. Specifically, the primary accumulation number N1 in the second shutter 20 is set by the time required for the support table 32 to move from the reception height position H1 to the movement height position H2, and the packaging on the support table 32 by the pusher 34. It can be determined in consideration of the time required for the bag set 3 to move to the supply position P1 and the time required for the support table 32 to move from the moving height position H2 to the receiving height position H1.

  Thereafter, when it is detected by the second shutter 20 that the fourth packaging bag 2 has been accumulated, the second shutter 20 is opened as shown in FIG. The packaging bag 2 is transferred from the second shutter 20 to the support table 32 in a state of being positioned at the receiving height position H1.

  On the other hand, in the push-out pusher device 40, the pusher 41 is raised from the storage height position H4 to the protruding height position H3 at the supply position P1, as shown in FIG. Thereafter, the pusher 41 is pushed out in the horizontal direction, whereby the packaging bag set 3 is slid on the support table 43 from the supply position P1 and moved to the carry-out position P2 (FIG. 19). After the packaging bag set 3 is moved to the carry-out position P2, as shown in FIG. 20, the pusher 41 is lowered from the protruding height position H3 to the storage height position H4, and then stored in the support table 43. In this state, the pusher 41 is moved horizontally to the supply position P1. A series of operations of the pusher 41 in the carry-out pusher device 40, that is, an extrusion operation of the packaging bag set 3 by the pusher 41 and a return operation after completion of the extrusion operation are performed in a predetermined constant cycle. By the operation of this constant cycle, the movement (unloading) operation of the packaging bag set 3 in the state positioned at the supply position P1 to the unloading position P2 is performed.

  Further, the packaging bag set 3 is pushed out by the pusher 91 of the common carry-out section 90 in the state where it is located at the carry-out position P2 by the carry-out pusher device 40, and is carried out to the post-process 100 (FIG. 21). The operation of the pusher 91 in the common carry-out unit 90 is also performed in a preset fixed cycle. Further, when the packaging bag set 3 is positioned at the carry-out position P2 in the system of the second transport line L2, the two sets of packaging bag sets 3 are horizontally moved collectively by the push drive of the pusher 91. Then, it is carried out to the post-process 100. In addition, it is preferable that the fixed operation cycle in the unloading pusher device 40 and the fixed operation cycle in the common unloading unit 90 are set in advance in association with each other so as to perform an efficient unloading operation. For example, it is efficient by setting so that the carrying out operation of the packaging bag set 3 by the common transport unit 90 is performed immediately after the packaging bag set 3 is positioned at the carry-out position P2 by the carry-out pusher devices 40 and 80. Can be carried out. In this case, it is preferable that the constant operation cycle in the carry-out pusher devices 40 and 80 and the constant operation cycle in the common carry-out unit 90 be the same cycle (time interval).

  On the other hand, as shown in FIG. 20, the support table 32 that has received four packaging bags 2 from the second shutter 20 further receives a fifth packaging bag 2 from the first shutter 10 (FIG. 21). When it is confirmed that the five packaging bags 2 are accumulated, the support table 32 is lowered from the receiving height position H1 to the moving height position H2, and the second shutter 20 is closed. Next, the supplied packaging bags 2 are collected by the second shutter 20 (FIG. 22).

  Thereafter, as shown in FIG. 23, the packaging bag set 3 is horizontally moved to the supply position P <b> 1 of the carry-out pusher device 40 by the push drive of the pusher 34. While this horizontal movement operation is being performed, the packaging bags 2 that are successively and sequentially supplied from the first shutter 10 are collected by the second shutter 20. The packaging bag set 3 that has been moved to the supply position P1 is moved to the carry-out position P2 by a push-out horizontal operation in a fixed operation cycle in the carry-out pusher device 40.

  Thereafter, the above-described operations are repeated in the same manner, and the packaging bags 2 that are successively supplied from the transportation line in a constant transportation cycle are accumulated, and the packaging bag group 3 is sequentially carried out to the subsequent process. .

  According to the present embodiment, in the stacking device that stacks the packaging bags 2 that are successively supplied from the first and second transport lines L1 and L2 in a constant transport cycle in each transport line, the lift device 30 Then, after being accumulated up to the prescribed number N2, the accumulated packaging bag set 3 is supplied to the unloading pusher device 40 by the moving pusher device 31, and the unloaded pusher device 40 supplies the packaging bag set 3 thus supplied. A configuration is adopted in which is transferred to the post-process 100 at a constant operation cycle. That is, in the lift device 30, the stacking operation is performed until the number of packaging bags 2 reaches the specified number N2 (that is, the standby method is adopted), so that a shortage occurs in the packaging bags 2 stacked for each conveyance line. The packaging bag set 3 always collected in the prescribed number N2 is unloaded to the post-process 100 via the unloading pusher device 40. Therefore, it is possible to carry out the packaging bag set 3 that is always accumulated in the specified number N2 to the post-process 100 without causing excess or deficiency in the packaging bags 2 that are accumulated for each of the plurality of transport lines. Therefore, even if there is a case where defective packaging bags are discharged from the transportation line and the packaging bags 2 are not temporarily supplied continuously as a result of the weighing inspection, appearance inspection, etc. in the transportation line, the specified number of sheets Waiting for the accumulation up to N2, the packaging bag set 3 can be carried out to the subsequent process.

  In addition, since the second shutter 20 is provided between the first shutter 10 and the lift device 30, the packaging bag 2 is being accumulated until the primary accumulation number N1 is reached by the second shutter 20. Furthermore, the movement operation of the packaging bag set 3 from the lift device 30 to the supply position P1 of the unloading pusher device 40 can be performed by the moving pusher device 31. Therefore, by continuously sharing the packaging bag 2 that is continuously supplied from the transfer line in a constant transfer cycle with the second shutter 20 and the lift device 30, the continuous stacking operation is performed. Can be done efficiently.

  Further, in the push-out pusher device 40, an operation for carrying out the packaging bag set 3 is performed in a predetermined preset operation cycle regardless of whether or not the packaging bag set 3 is arranged at the supply position P1. And, it is not affected by the carry-out timing of the packaging bag set 3 in the other transfer lines. In addition, a simple configuration can be achieved without complicating the device configuration.

  Therefore, the packaging bags 2 that are continuously supplied in a certain transportation cycle in a plurality of transportation lines are accumulated in a prescribed number N2 for each transportation line, and the accumulated packaging bag set 3 is transported to the subsequent process 100. Even in the case where defective packaging bags or the like are discharged on the transport line in the bag accumulation, the packaging bags 2 can be efficiently accumulated and the packaging bag set 3 is carried out to the post-process 100. Can be performed efficiently. Therefore, the integrated device 1 with improved productivity can be provided.

  In the above description of the embodiment, the case where the primary accumulation number N1 = 4 and the specified number N2 = 5 is described as an example in the packaging bag 2. However, N1 and N2 are the specifications of the required equipment and each It can be set in consideration of the operation time in the component device.

  Further, the number of rows of the plurality of transport lines is not limited to the case of two rows, and can be set to the number of rows of three or more.

  Moreover, although the case where the conveyance direction of the push-out pusher devices 40 and 80 in the stacking apparatus 1 is orthogonal to the conveyance direction in the conveyance line has been described as an example, such a conveyance direction is required equipment specifications and installation space, etc. Can be set freely in consideration of

  It is to be noted that, by appropriately combining arbitrary embodiments of the various embodiments described above, the effects possessed by them can be produced.

DESCRIPTION OF SYMBOLS 1 Stacking device 2 Packaging bag 3 Packaging bag group 9 Control device 10 1st shutter (packaging bag supply part)
11 Supply sheet number detection means 20 Second shutter (primary stacking unit)
21 Shutter drive unit 30 Lift device (secondary integration unit)
31 Pusher device for movement (packaging bag assembly moving device)
32 Support table 33 Elevating drive unit 34 Pusher 35 Extrusion drive unit 40 Unloading pusher device (packaging bag unloading device)
41 Pusher 42 Extrusion Drive Unit 43 Support Table 44 Pusher Lifting Unit 90 Common Unloading Unit 91 Pusher 92 Pushing Drive Unit 93 Support Table 94 Pusher Lifting Unit 100 Subsequent Process L1 First Transport Line L2 Second Transport Line P0 End Position P1 Supply Position P2 Unloading position H1 Receiving height position H2 Moving height position H3, H5 Protruding height position H4, H6 Storage height position N1 Primary accumulation number N2 Specified number

Claims (4)

In a packaging bag accumulation device that accumulates packaging bags that are continuously supplied in a certain conveyance cycle in a plurality of conveyance lines in a specified number for each conveyance line, and carries out the accumulated packaging bag set to a subsequent process.
A packaging bag supply unit for sequentially supplying the packaging bags conveyed to the terminal position of the conveying line individually to the stacking unit located below the terminal position;
A primary stacking unit that is positioned below the packaging bag supply unit and stacks the packaging bags supplied from the packaging bag supply unit up to a primary stacking number N1 that is less than the specified number N2.
The packaging bag positioned below the primary stacking unit and having received the primary stacking number N1 in the primary stacking unit is received, and the packaging bags supplied from the packaging bag supply unit are further stacked and stacked up to the specified number N2. A secondary accumulation section;
Packaging that receives the packaging bag set accumulated in the secondary stacking unit at the supply position, moves the packaging bag set from the supply position to the unloading position in a certain cycle, and carries the packaging bag set to the subsequent process. A bag assembly carrying device;
A packaging bag assembly moving device that supplies the packaging bag assembly accumulated in the secondary accumulation unit to the supply position of the packaging bag assembly carry-out device is individually provided for each of the plurality of transport lines,
After collecting up to the specified number N2 in the secondary stacking unit, the packaging bags to be supplied next from the packaging bag supply unit are stacked in the primary stacking unit,
While the packaging bag is being accumulated until the primary accumulation number N1 is reached in the primary accumulation unit, the movement of the packaging bag assembly from the secondary accumulation unit to the packaging bag assembly carry-out device by the packaging bag assembly moving device is completed. A packaging bag stacking apparatus, characterized in that the secondary packing unit allows the next packaging bag to be stacked. Supply number detection means for detecting the supply number of the packaging bags supplied from the packaging bag supply unit;
Based on the detection signal of the supplied number of packaging bags input from the supplied number detecting means, the number of the accumulated packaging bags reaches the primary accumulated number N1 in the primary stacking unit, and the packaging bag is detected in the secondary stacking unit. Recognizing that the number of stacked sheets has reached the specified number N2, delivering the packaging bag from the primary stacking section to the secondary stacking section, and packaging from the secondary stacking section to the packaging bag unloading apparatus by the packing bag assembly moving device The packaging bag accumulation device according to claim 1 further provided with a control device which controls timing of movement operation of a bag set. The packaging bag supply unit is provided at the end position of the transport line, supports the packaging bag transported in the closed state, releases the support of the packaging bag by its opening operation, and the primary stacking unit located below A first shutter that can be opened and closed to supply a packaging bag;
The primary stacking unit supports and stacks the packaging bags supplied from the first shutter in a closed state, and releases the support of the packaging bags by the opening operation, and the secondary stacking unit located below A second shutter that can be opened and closed to deliver the packaging bags collected in
The packaging bag stacking device according to claim 1 or 2, wherein when the second shutter is in an open state, the packaging bag supplied from the first shutter is directly supplied to the secondary stacking unit.   The secondary stacking unit has a packaging bag receiving height position, which is a position close to the primary stacking unit, and a position below the packaging bag receiving height position, and the packaging bag group is moved to the packaging bag group unloading device. The packaging bag accumulation | storage device as described in any one of Claim 1 to 3 which is a lift apparatus which can be raised / lowered between the movement height positions in which operation | movement is performed.

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