Self-discharging packaging bag device and packaging machine equipped therewith

Abstract

The present invention provides a self-supporting packaging bag discharge device that allows packaging bags containing packaged goods to be discharged from the machine in an upright position, and a packaging machine equipped with the same. [Solution] The present invention provides a self-supporting packaging bag discharge device 20 which is provided at a product discharge station 10 to discharge packaging bags a that have been packaged by a packaging machine P to the outside of the machine. The device includes a packaging bag placement section 21 provided below the packaging bag a that has been packaged and for placing the packaging bag a in a self-supporting state, a packaging bag rotation section 22 for rotating the packaging bag a placed on the packaging bag placement section 21 to a desired angle in a self-supporting state, and a conveyor belt 23 for transporting the packaging bag a that has been rotated to a desired angle by the packaging bag rotation section 22 to the outside of the machine in a self-supporting state.

Description

Technical Field

[0001] The present invention relates to a packaging bag self-standing discharge device for discharging a packaging bag in which an object to be packaged is packaged in a self-standing state outside the machine, and a packaging machine equipped with the same.

Background Art

[0002] Conventionally, a packaging bag a in which an object to be packaged is packaged by a packaging machine, as shown in FIG. 10 for example, falls downward when released from the grippers 51 and 52 of the gripper pair g at the product discharge station of the packaging machine, and good products are sent to the discharge conveyor 55 in a lying-down state through the chute 53 and the sorting chute 54 and discharged outside the machine. It was not possible to discharge the packaging bag a in which the object to be packaged was packaged in a self-standing state as shown in FIG. 7.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, an object of the present invention is to provide a packaging bag self-standing discharge device capable of discharging a packaging bag in which an object to be packaged is packaged by a packaging machine in a self-standing state outside the machine, and a packaging machine equipped with the same.

Means for Solving the Problems

[0005] To achieve the above objectives, a self-supporting packaging bag discharge device is provided at a product discharge station for discharging packaging bags containing packaged goods from a packaging machine, and is characterized by having a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position, a packaging bag rotation section for rotating the packaging bag placed on the packaging bag placement section by a desired angle in an upright position, and a conveyor for transporting the packaging bag, which has been rotated by the desired angle by the packaging bag rotation section, out of the machine in an upright position (Claim 1).

[0006] It is preferable that the packaging bag placement section, the packaging bag rotation section, and the conveying conveyor are configured to be able to move up and down according to the height of the packaging machine or the packaging bags to be packaged by the packaging machine (Claim 2). It is preferable that the packaging bag placement section of the self-supporting packaging bag discharge device has a reciprocating section for pushing the packaging bags placed on the packaging bag placement section toward the packaging bag rotation section (Claim 3). It is preferable that the packaging bag rotation section has a packaging bag pressing section for rotating the packaging bags and sending them to the conveying conveyor (Claim 4). It is preferable that the packaging bag rotation section has a rotation axis, and that a plurality of packaging bag pressing sections are provided at equal angles apart from the rotation axis (Claim 5). It is preferable that the packaging machine is a packaging machine that moves a movable body equipped with a grip pair to a plurality of packaging stations and fills the packaged items into the packaging bags supported in a vertical position by the grip pair (Claim 6).

[0007] Furthermore, a self-supporting packaging bag discharge device that achieves the above objectives is provided for a product discharge station to discharge packaging bags containing packaged goods from a packaging machine, comprising: a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position; and a conveyor for transporting the packaging bag placed on the packaging bag placement section to the outside of the packaging machine in an upright position, wherein the packaging bag placement section and the conveyor are configured to be able to move up and down according to the height of the packaging machine or the packaging bag being packaged by the packaging machine (Claim 7).

[0008] The packaging bag self-discharging device preferably has a reciprocating part for pushing the packaging bag placed on the packaging bag placement section toward the conveyor belt (Claim 8). The packaging machine preferably moves a mobile body equipped with a pair of grips to a plurality of packaging stations and fills the packaged items into the packaging bags supported in a vertical position by the pair of grips (Claim 9).

[0009] Furthermore, a packaging machine that solves the above problems is characterized by having a packaging bag self-supporting discharge device at a product discharge station for discharging packaging bags containing packaged goods outside the machine, the product discharge station having a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position, a packaging bag rotation section for rotating the packaging bag containing the packaged goods by a desired angle in an upright position, and a discharge conveyor for discharging the packaging bag rotated by the packaging bag rotation section outside the machine (Claim 10). Preferably, the packaging bag placement section, the packaging bag rotation section, and the conveyor are configured to be able to move up and down according to the height of the packaging machine or the packaging bag being packaged by the packaging machine (Claim 11). Preferably, the packaging bag placement section of the self-supporting packaging bag discharge device has a reciprocating section for pushing the packaging bag placed on the packaging bag placement section toward the packaging bag rotation section (Claim 12).

[0010] Furthermore, a packaging machine that solves the above problems may be one that has a packaging bag self-supporting discharge device, wherein the product discharge station for discharging packaging bags containing the packaged goods outside the machine has a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position, and a conveyor for transporting the packaging bag placed on the packaging bag placement section outside the machine in an upright position, and the packaging bag placement section and the conveyor are configured to be able to move up and down (Claim 13). Preferably, the packaging bag placement section of the self-supporting discharge device has a reciprocating section for pushing the packaging bag placed on the packaging bag placement section toward the conveyor (Claim 14). [Effects of the Invention]

[0011] According to the self-supporting packaging bag discharge device described in claim 1, packaging bags in which the packaged items have been wrapped can be discharged from the machine in a self-supporting state, and the opening of the packaging bag can be adjusted to a desired angle for discharge in accordance with sewing the opening of the bag or boxing operations. According to the self-supporting packaging bag discharge device described in claim 2, the height of the packaging bag placement section can be adjusted to suppress the impact when a packaging bag containing an item falls onto the packaging bag placement section. According to the packaging bag self-discharging device described in claim 3, a packaging bag placed on the packaging bag placement section can be moved to the packaging bag rotating section with a simple structure. According to the packaging bag self-discharging device described in claim 4, the packaging bag that has moved to the packaging bag rotating section can be rotated with a simple structure, and the bag can be moved to the conveyor belt with the opening of the bag adjusted to a desired angle. According to the packaging bag self-discharging device described in claim 5, multiple packaging bags can be sequentially and efficiently moved to a conveyor belt. According to the self-supporting packaging bag discharge device described in claim 6, the packaging bag can be easily placed on the packaging bag placement section by opening the grip pair. According to the self-supporting packaging bag discharge device described in claim 7, the packaging bag containing the packaged goods can be discharged from the machine in a self-supporting state, and the height of the packaging bag placement section can be adjusted to suppress the impact when the packaging bag containing the packaged goods falls onto the packaging bag placement section. According to the packaging bag self-discharging device described in claim 8, packaging bags placed on the packaging bag placement section can be moved to a conveyor belt with a simple structure. According to the self-supporting packaging bag discharge device described in claim 9, the packaging bag can be easily placed on the packaging bag placement section by opening the grip pair. According to the packaging machine equipped with the self-supporting packaging bag discharge device described in claim 10, the packaging bag containing the packaged item can be discharged from the machine in a self-supporting state, and the opening of the packaging bag can be adjusted to a desired angle for discharge in accordance with sewing the opening of the bag or boxing operations. According to the packaging machine equipped with the self-supporting packaging bag discharge device described in claim 11, the height of the packaging bag placement section can be adjusted to suppress the impact when a packaging bag containing the packaged item falls onto the packaging bag placement section. According to the packaging machine equipped with the packaging bag self-discharging device described in claim 12, the packaging bags placed on the packaging bag placement section can be moved to the packaging bag rotating section with a simple structure. According to the packaging machine equipped with the self-supporting packaging bag discharge device described in claim 13, the packaging bag containing the packaged item can be discharged from the machine in a self-supporting state, and the height of the packaging bag placement section can be adjusted to suppress the impact when the packaging bag containing the packaged item falls onto the packaging bag placement section. According to the packaging machine equipped with the packaging bag self-discharging device described in claim 14, packaging bags placed on the packaging bag placement section can be moved to a conveyor with a simple structure. [Brief explanation of the drawing]

[0012] [Figure 1] This is a plan view of one embodiment of the self-discharging packaging bag device of the present invention. [Figure 2] Figure 1 is a plan view illustrating the operation of the self-discharging packaging bag device. [Figure 3] Figure 1 is a plan view illustrating the operation of the self-discharging packaging bag device. [Figure 4] Figure 1 is a left side view of the self-supporting packaging bag dispensing device. [Figure 5] Figure 1 is a right-side view of the self-supporting packaging bag dispensing device. [Figure 6] Figure 1 is a left side view illustrating the operation of the self-supporting packaging bag dispensing device. [Figure 7] Figure 1 is a perspective view illustrating the operation of the self-supporting packaging bag dispensing device. [Figure 8] This is a plan view of one embodiment of a packaging machine equipped with a self-supporting packaging bag discharge device of the present invention. [Figure 9] This is a plan view of another embodiment of a packaging machine equipped with a self-supporting packaging bag discharge device of the present invention. [Figure 10]It is a perspective view for explaining the structure and operation of the product discharge station of a conventional packaging machine.

Embodiment for Carrying out the Invention

[0013] In the present invention, as shown in FIG. 8, there is provided a packaging bag self-standing discharge device 20 arranged at a product discharge station 10 for discharging a packaging bag a in which an object to be packaged is packaged by a packaging machine P to the outside of the machine. The packaging bag self-standing discharge device 20 includes a packaging bag placement portion 21 provided below the packaging bag a in which the object to be packaged is packaged for placing the packaging bag a in a self-standing state, a packaging bag rotation portion 22 for rotating the packaging bag a placed on the packaging bag placement portion 21 at a desired angle in a self-standing state, and a conveyor 23 for conveying the packaging bag a rotated at a desired angle by the packaging bag rotation portion 22 to the outside of the machine in a self-standing state. Thus, the packaging bag a in which the object to be packaged is packaged by the packaging machine P can be discharged to the outside of the machine in a self-standing state, and the packaging bag self-standing discharge device 20 capable of adjusting the bag mouth b of the packaging bag to a desired angle according to the sewing work of the bag mouth b or the boxing work and discharging it, and a packaging machine P equipped with the same are realized.

[0014] Also, in the present invention, as shown in FIG. 9, there is provided a packaging bag self-standing discharge device 60 arranged at a product discharge station 10 for discharging a packaging bag a in which an object to be packaged is packaged by a packaging machine P2 to the outside of the machine. The packaging bag self-standing discharge device 60 includes a packaging bag placement portion 61 provided below the packaging bag a in which the object to be packaged is packaged for placing the packaging bag a in a self-standing state, and a conveyor 62 for conveying the packaging bag a placed on the packaging bag placement portion 61 to the outside of the machine of the packaging machine P2 in a self-standing state. The packaging bag placement portion 61 and the conveyor 62 are configured to be able to move up and down according to the height of the packaging machine P2 or the packaging bag a packaged by the packaging machine P2. Thus, the packaging bag a in which the object to be packaged is packaged by the packaging machine P2 can be discharged to the outside of the machine in a self-standing state, and the packaging bag self-standing discharge device 60 capable of adjusting the height of the packaging bag placement portion 61 to suppress the impact when the packaging bag a in which the object to be packaged is packaged falls onto the packaging bag placement portion 61, and a packaging machine P2 equipped with the same are realized.

Example

[0015] A packaging machine equipped with the self-discharging packaging bag device of the present invention will be described using an embodiment shown in Figures 1 to 8. The packaging machine P equipped with the self-supporting packaging bag discharge device 20 of this embodiment includes a packaging bag placement section 21 provided below the packaging bag a containing the packaged goods for supporting the packaging bag a in an upright position, a packaging bag rotation section 22 for rotating the packaging bag a containing the packaged goods by a desired angle in an upright position, and a discharge conveyor 23 for discharging the packaging bag a rotated by the packaging bag rotation section 23 to the outside of the machine. Each of these components will be described in detail below.

[0016] As shown in Figure 8, the packaging machine P of this embodiment moves a mobile body 10 equipped with grip pairs g to a plurality of stations (1 to 10) with intermittent stops, and fills the contents to be packaged into a packaging bag a supported in a vertical position by the grip pairs g. The packaging machine P is equipped with a self-supporting packaging bag discharge device 20 at the product discharge station 10 for the product discharge process. In this embodiment, the opening b of the packaging bag a is sealed by a sewing device on the conveyor belt 23 or outside the machine, so the opening b is discharged in an open state. However, it may also be a packaging machine that seals the opening b before discharging the contents to be packaged.

[0017] Specifically, the packaging machine P in this embodiment is a packaging machine that performs a total of 10 processes at each station: a bag feeding process (bag feeding station 1) for supplying packaging bags a into the packaging machine, a printing process (printing station 2) for printing the expiration date, etc., a printing inspection process (printing inspection station 3) for performing printing inspection, a bag opening process (bag opening / bottom opening station 4) for opening the bag opening b and the inside of the bottom of packaging bag a, a filling process (filling station 5) for filling the packaging bag a with the items to be packaged, a pushing process (pushing station 6) for pushing the items to be packaged into the packaging bag a, a bottom vibration process (bottom vibration station 7) for vibrating the bottom of packaging bag a, a blowing process (blowing station 8) for blowing away any items attached to the area around the bag opening b of packaging bag a, an air removal process (air removal station 9) for removing air from inside packaging bag a, and a product discharge process (product discharge station 10) for discharging the packaging bag a containing the items to be packaged outside the machine.

[0018] In this embodiment, the packaging machine P is a rotary-type packaging machine, but the packaging machine of the present invention may be a known linear-movement type packaging machine or a truck-type packaging machine.

[0019] In the packaging machine P, as shown in Figure 8, a stand (not shown) that freely supports a vertically extending intermittent rotating shaft 12 is provided on the machine base 13. A movable body (disc-shaped rotating body) 11 attached to the upper part of the intermittent rotating shaft 12 is provided with 10 pairs of grips g for gripping or releasing packaging bags a, which protrude radially at equal angular intervals around the intermittent rotating shaft 12. With this type of packaging machine, packaging bags a can be easily placed on the packaging bag placement section 21 by releasing the pairs of grips g.

[0020] Furthermore, in this embodiment, the packaging machine P is equipped with a self-supporting packaging bag discharge device 20 at the product discharge station 10 that discharges the packaging bag a containing the packaged goods to the outside of the machine.

[0021] The self-standing packaging bag discharge device 20 in this embodiment, as shown in Figure 1 or Figure 2, is a self-standing packaging bag discharge device 20 arranged at the product discharge station 10 to discharge packaging bags a that have been packaged by the packaging machine P to the outside of the machine. It has a packaging bag placement section 21 provided below the packaging bag a that has been packaged and for placing the packaging bag a in an upright position, a packaging bag rotation section 22 for rotating the packaging bag a placed on the packaging bag placement section 21 to a desired angle in an upright position, and a conveyor belt 23 for transporting the packaging bag a that has been rotated to the desired angle by the packaging bag rotation section 22 to the outside of the machine in an upright position. As a result, the self-standing packaging bag discharge device 20 can discharge packaging bags a that have been packaged by the packaging machine P to the outside of the machine in an upright position, and can also adjust the opening b of the packaging bag to a desired angle according to sewing the opening b of the bag or boxing work before discharge.

[0022] The packaging bag placement section 21 is located below the packaging bag a containing the packaged items and is intended to support the packaging bag a in an upright position. In this embodiment, as shown in Figure 1, it is located on the upper surface near the base end of the horizontal plate section 24, which extends from the product discharge station 10 in the direction of the packaging bag rotation section 22.

[0023] The packaging bag placement section 21 has a reciprocating section 25 for pushing the packaging bag a placed on the packaging bag placement section 21 toward the packaging bag rotation section 22. This allows the packaging bag a placed on the packaging bag placement section 21 to be moved toward the packaging bag rotation section 22 with a simple structure.

[0024] As shown in Figure 1, the reciprocating unit 25 of this embodiment has a pressing plate 25a provided at the rear of the packaging bag placement unit 21 (closer to the base end of the horizontal plate section 24) and a driving means (not shown, but for example, a cylinder) for reciprocating the pressing plate 25a. Then, as shown in Figure 2, the pressing plate 25a pushes out the packaging bag a containing the items to be packaged, which is placed on the packaging bag placement unit 21, and moves it sequentially to the packaging bag rotating unit 22, as shown in Figure 3.

[0025] The packaging bag rotating section 22 is for rotating the packaging bag a, which is placed on the packaging bag mounting section 21, to a desired angle while remaining self-supporting. In this embodiment, the packaging bag a is moved from the packaging bag mounting section 21 to the packaging bag rotating section 22 and then rotated to the desired angle. In this embodiment, the self-supporting packaging bag discharge device 20 has the packaging bag mounting section 21 and the packaging bag rotating section 22 separated from each other, and is configured to move the packaging bag a from the packaging bag mounting section 21 to the packaging bag rotating section 22. However, the invention is not limited to this configuration, and the present invention also includes structures in which the packaging bag rotating section also serves as the packaging bag mounting section, and the packaging bag a is rotated to a desired angle without moving from the packaging bag mounting section to the packaging bag rotating section.

[0026] The packaging bag rotating unit 22 rotates the packaging bag a to a desired angle while it is standing upright, for example, to sew the opening b of the packaging bag a or to change the opening b of the packaging bag a to a desired angle according to the boxing work. In this embodiment, the packaging bag a is rotated by 72° to sew the opening b of the packaging bag a, so that the opening b of the packaging bag a is parallel to the direction of travel of the conveyor belt 23 as shown in Figure 3 or Figure 7, and in this state the opening b of the packaging bag a is sequentially sealed by a sewing machine device (not shown).

[0027] However, the angle at which the packaging bag a is rotated is not limited to 72°, and can be appropriately modified depending on the number of packaging stations in the packaging machine, the number of processes, or the desired angle of the bag opening b. Furthermore, as shown in Figure 8, the packaging bag rotating part 22 in this embodiment is configured to rotate in the same direction (clockwise in Figure 8) as the rotating direction of the moving body (disc-shaped rotating body) 11 of the packaging machine P, but the present invention also includes configurations in which the rotating part rotates in the opposite direction to the rotating direction of the moving body (disc-shaped rotating body) 11 of the packaging machine P. Moreover, as shown in this embodiment, the packaging bag rotating part 22 and the moving body (disc-shaped rotating body) 11 of the packaging machine P are configured to rotate intermittently, but the invention is not limited to this, and configurations in which they rotate continuously are also included in the present invention.

[0028] Specifically, as shown in Figure 3, the packaging bag rotating unit 22 in this embodiment has a packaging bag pressing unit 26 for rotating the packaging bag a and sending it to the conveyor belt 23. This allows the packaging bag that has moved to the packaging bag rotating unit to be rotated with a simple structure and moved to the conveyor belt 23 with the bag opening b adjusted to a desired angle.

[0029] The packaging bag rotating section 22 has a rotating shaft 22a, and multiple packaging bag pressing sections 26 are provided at equal angular distances from the rotating shaft 22a. This allows multiple packaging bags a to be sequentially and efficiently moved to the conveyor belt 23.

[0030] Specifically, the packaging bag rotating unit 22 in this embodiment has five packaging bag pressing units (plate-shaped pressing bodies) 26 provided around the rotating disc 22b at equal angles (72° in this embodiment) apart, and these are configured to rotate and sequentially move the packaging bag a to the conveyor belt 23 with their respective plate-shaped surfaces 26a.

[0031] The conveyor belt 23 is for transporting the packaging bags a, which have been rotated to a desired angle by the packaging bag rotating section 22, to the outside of the machine in an upright position. It is located downstream of the packaging bag rotating section 22, and the opening of the bags is sealed by sewing using a sewing machine device sequentially, while boxing and other operations are performed at the front end.

[0032] In this embodiment, the self-supporting packaging bag discharge device 20 is configured such that the packaging bag placement section 21, the packaging bag rotation section 22, and the conveying conveyor 23 can be raised and lowered according to the type of packaging machine or the height of the packaging bags being packaged by the machine. This allows the height of the packaging bag placement section 21 to be adjusted, thereby suppressing the impact when the packaging bag a containing the packaged items falls onto the packaging bag placement section 21.

[0033] Specifically, as shown in Figure 4 or 5, the self-supporting packaging bag discharge device 20 of this embodiment has two lifting mechanisms (winding transmission mechanisms) 27 on the right and left sides, respectively, for raising and lowering the base portion 33 that supports the packaging bag placement section 21, the packaging bag rotation section 22, and the conveyor belt 23. The lifting mechanism (winding transmission mechanism) 27 has a drive shaft side sprocket 28, a driven shaft side sprocket 29, a winding mediating link (chain) 30, a lifting section 31 fixed to the winding mediating link (chain), and a lifting pole 32. When the winding mediating link (chain) 30 is rotated in one direction by the drive shaft side sprocket 28, as shown in Figure 6, the lifting section 31 rises, and consequently the base portion 33, which is engaged with the lifting section 31 (supported from the bottom), rises, and the packaging bag placement section 21, the packaging bag rotation section 22, and the conveyor belt 23 are configured to rise along the lifting poles 32 arranged on all four sides. Conversely, when the winding mediating link (chain) 30 is rotated in the other direction by the drive shaft side sprocket 28, as shown in Figure 4 or Figure 5, the lifting section 31 descends, and consequently the base section 33, which is engaged with the lifting section 31 (supported from the lower side), also descends, causing the packaging bag placement section 21, the packaging bag rotation section 22, and the conveying belt 23 to descend along the lifting pole 32. This configuration allows the height of the packaging bag placement section 21 to be adjusted according to the type of packaging machine or the height of the packaging bags (e.g., a, a1) being packaged by the machine, thereby suppressing the impact when the packaging bag a containing the packaged items falls onto the packaging bag placement section 21.

[0034] Next, the operation of the packaging machine P equipped with the packaging bag self-discharging device 20 of this embodiment will be described. In the bag-feeding process (first process), a bag-feeding device (not shown) located at the bag-feeding station 1 holds the packaging bag a in a vertical position and sequentially passes the packaging bag a to a pair of grips g that are waiting by intermittent movement.

[0035] In the printing process for expiration dates, etc. (second process), the expiration date, etc., is printed on the packaging bag a by a printing device (not shown) located at printing station 2.

[0036] In the print inspection process (third process), an inspection is performed to check whether the printing of expiration dates and other information in the second process is done correctly. Specifically, this process is carried out using a camera (not shown) located at print inspection station 3.

[0037] In the bag opening process (fourth step) for opening the mouth b and the inside of the bottom of the packaging bag a, the mouth b of the packaging bag a is opened by being sucked outwards from both sides by suction cups (not shown) placed at the mouth / bottom opening station 4, and the bottom is also opened by being sucked outwards from both sides.

[0038] In the filling process (5th step) in which the packaged material is filled into the packaging bag a, the discharge port of the funnel for filling the packaged material, located at the filling station 5, is inserted through the bag opening b, and a set amount of the packaged material (e.g., pet food) is filled into the packaging bag a.

[0039] In the pressing process (6th step), in which the packaged items are pressed in, the packaged items are pressed in by a pressing tool (not shown) located at the pressing station 6.

[0040] In the bottom vibration process (7th step), in which the bottom of the packaging bag a is vibrated, the bottom of the packaging bag a is vibrated up and down by the bottom support body of the bottom support device (not shown) located in the bottom vibration station 7.

[0041] In the blowing process (8th step), which involves blowing away any packaged material adhering to the opening b of the packaging bag a, the blowing nozzle of an air blowing device (not shown) located at the blowing station 8 is inserted near the opening b of the packaging bag a, and the packaged material adhering to the opening b of the packaging bag a is removed by the air blown out from the blowing nozzle.

[0042] In the air removal process (9th step), which involves removing air from the packaging bag a, a degassing nozzle (not shown) located at the air removal station 9 is inserted into the packaging bag a to remove any remaining air inside the packaging bag a.

[0043] In the product discharge process (10th process), in which the packaging bag a containing the packaged goods is discharged outside the machine, the packaging bag a containing the packaged goods is discharged outside the machine in an upright position by the packaging bag self-discharging device 20 located at the product discharge station 10.

[0044] Specifically, before operating the packaging machine P, the height of the packaging bag holder 21 is adjusted according to the type of packaging machine or the height of the packaging bags to be packaged by the machine, so as to suppress the impact when the packaging bag a containing the packaged items falls onto the packaging bag holder 21.

[0045] More specifically, when the lifting mechanism (winding transmission mechanism) 27 rotates the winding mediating link (chain) 30 in one direction by the drive shaft side sprocket 28, the packaging bag mounting section 21 rises as shown in Figure 6, and when the winding mediating link (chain) 30 rotates in the other direction by the drive shaft side sprocket 28, the packaging bag mounting section 21 lowers as shown in Figure 4 or Figure 5. This allows the height of the packaging bag mounting section 21 to be adjusted according to the type of packaging machine or the height of the packaging bag being packaged by the machine, thereby suppressing the impact when the packaging bag a containing the packaged item falls onto the packaging bag mounting section 21.

[0046] After the packaging machine P is in operation, the packaging bags a that reach the product discharge station 10 are released from the grip pair g and placed on the packaging bag placement section 21 of the packaging bag self-discharging device 20 so as not to be subjected to impact. As shown in Figure 3, the packaging bags a placed on the packaging bag placement section 21 are pushed out by the pressing plate 25a and moved sequentially to the packaging bag rotating section 22. The packaging bags a that have moved to the packaging bag rotating section 22 are pressed against the plate-shaped surface 26a of the packaging bag pressing section (plate-shaped pressing body) 26 and rotated and moved sequentially to the transport conveyor 23. The packaging bags a that have moved to the transport conveyor 23 are sequentially sewn by the sewing machine device to seal the bag opening, and the boxing work is performed at the leading end.

[0047] As described above, the packaging machine 1 in this embodiment is configured to sequentially mass-produce products by performing the above-mentioned packaging processes at each packaging station 1 to 10 on intermittently moving packaging containers (packaging bags) a, and then discharge the products outside the machine. [Examples]

[0048] Next, we will describe the packaging machine P2 equipped with the self-supporting packaging bag discharge device 60 of the present invention shown in Figure 9. The packaging machine P2 equipped with the self-supporting packaging bag discharge device 60 in this embodiment has a packaging bag placement section 61 provided below the packaging bag a containing the packaged goods for placing the packaging bag a in an upright position, and a conveyor belt 62 for transporting the packaging bag a placed on the packaging bag placement section 61 to the outside of the machine in an upright position. The packaging machine P2 is equipped with the self-supporting packaging bag discharge device 60, which is configured to be able to move up and down between the packaging bag placement section 61 and the conveyor belt 62.

[0049] The fundamental difference between the packaging machine P2 equipped with the self-supporting packaging bag discharge device 60 in this embodiment and the packaging machine P equipped with the self-supporting packaging bag discharge device 20 described above is that the packaging machine P2 equipped with the self-supporting packaging bag discharge device 60 does not have a packaging bag rotating part; otherwise, they are the same.

[0050] In other words, since the packaging machine P2 equipped with the self-supporting packaging bag discharge device 60 of this embodiment does not have a packaging bag rotating part, the self-supporting packaging bag discharge device 60 located at the product discharge station 10 of the packaging machine P2 allows the packaging bag a, released from the grip pair g, to be placed on the packaging bag placement section 61, then pushed out by the pressing plate 64a, and sequentially transported by the conveyor belt 62 and discharged outside the machine. Thus, the self-supporting packaging bag discharge device and the packaging machine equipped with the self-supporting packaging bag discharge device of the present invention also broadly include those in which the packaging bag a is transported by the conveyor belt 62 while remaining in an upright state on the packaging bag placement section 61 (with the bag opening b extending in a direction perpendicular to the direction of travel of the conveyor belt 62) without being rotated by a desired angle.

[0051] Furthermore, in this embodiment, the packaging machine P2 equipped with the self-supporting packaging bag discharge device 60 is configured such that the packaging bag placement section 61 and the conveying conveyor 62 can be raised and lowered. This allows the placement and lowering to be adjusted according to the type of packaging machine or the height of the packaging bags being packaged by the machine, and the height of the packaging bag placement section 61 can be adjusted to suppress the impact when the packaging bag a containing the packaged items falls onto the packaging bag placement section 61.

[0052] Specifically, the self-supporting packaging bag discharge device 60 has a lifting mechanism (winding transmission mechanism) 63 similar to that of the self-supporting packaging bag discharge device 20, on the left and right sides in Figure 9, respectively. The height of the packaging bag placement section 61 and the conveyor belt 62 are adjusted according to the type of packaging machine or the height of the packaging bags to be packaged by the machine, so that the impact when the packaging bag a containing the packaged items falls onto the packaging bag placement section 61 can be suppressed. Therefore, before operating the packaging machine P2 equipped with the self-supporting packaging bag discharge device 60, the height of the packaging bag placement section 61 is adjusted as described above. Components similar to those of the packaging machine P are denoted by the same reference numerals and their explanation is omitted.

[0053] After the packaging machine P2 has started operating, the packaging bags a that have reached the product discharge station 10 are released from the grip pair g and placed on the packaging bag placement section 61 of the packaging bag self-discharging device 60 so as not to be subjected to impact. The packaging bags a placed on the packaging bag placement section 61 are moved on the horizontal plate section 65 by the pressing plate 64a of the reciprocating section 64 and are sequentially sent to the conveyor belt 62. The packaging bags a that have moved to the conveyor belt 62 are sequentially sewn by the sewing machine device to seal the bag opening, just as with the packaging machine P, and boxing is performed at the leading end. [Explanation of symbols]

[0054] P packaging machine 1. Bag dispensing station 2 Printing Station 3 Print Inspection Station 4. Bag opening / bottom opening station 5 Filling Station 6 Push-in Station 7. Bottom vibration station 8. Blowing Station 9. Air bleeding station 10 Product Disposal Stations 11 Mobile Unit 12 Intermittent rotation shaft 13 machines 20 Packaging bag independent discharge device 21 Packaging bag placement section 22. Rotating part of the packaging bag 22a Rotation axis 22b Rotating disc 23 Conveyor 24 Horizontal plate section 25 Reciprocating part 25a Pressing plate 26 Packaging bag pressing section 26a Plate-like surface 27. Lifting mechanism (winding transmission mechanism) 28 Drive shaft side sprocket 29 Driven shaft side sprocket 30 Wrapped connecting links (chains) 31 Lifting section 32 Lifting poles 33 Base a packaging bag b Bag opening g grip

Claims

1. A self-supporting packaging bag discharge device, which is installed at a product discharge station for discharging packaging bags containing packaged goods from a packaging machine, is characterized by comprising: a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position; a packaging bag rotation section for rotating the packaging bag placed on the packaging bag placement section by a desired angle in an upright position; and a conveyor for transporting the packaging bag, which has been rotated by the desired angle by the packaging bag rotation section, out of the machine in an upright position.

2. The packaging bag self-supporting discharge device according to claim 1, wherein the packaging bag placement section, the packaging bag rotation section, and the conveying conveyor are configured to be able to move up and down according to the height of the packaging machine or the packaging bags to be packaged by the packaging machine.

3. The packaging bag self-supporting dispensing device according to claim 1 or 2, wherein the packaging bag placement section of the packaging bag self-supporting dispensing device has a reciprocating section for pushing the packaging bag placed on the packaging bag placement section toward the packaging bag rotating section.

4. The packaging bag self-discharging device according to claim 1 or 2, wherein the packaging bag rotating part has a packaging bag pressing part for rotating the packaging bag and sending it to the conveyor.

5. The packaging bag self-discharging device according to claim 4, wherein the packaging bag rotating part has a rotating shaft, and a plurality of packaging bag pressing parts are provided at equal angular distances from the rotating shaft.

6. The packaging machine is a packaging machine that moves a mobile body equipped with a pair of grips to a plurality of packaging stations and fills the packaging bag, which is supported in a vertical position by the pair of grips, with the packaging bag self-discharging device according to claim 1 or 2.

7. A self-supporting packaging bag discharge device, which is installed at a product discharge station for discharging packaging bags containing packaged goods from a packaging machine, comprising: a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position; and a conveyor for transporting the packaging bag placed on the packaging bag placement section to the outside of the packaging machine in an upright position, wherein the packaging bag placement section and the conveyor are configured to be able to move up and down according to the height of the packaging machine or the packaging bag being packaged by the packaging machine.

8. The packaging bag self-discharging device according to claim 7, further comprising a reciprocating unit for pushing the packaging bag placed on the packaging bag placement unit toward the conveyor belt.

9. The packaging machine is a packaging machine that moves a mobile body equipped with a pair of grips to a plurality of packaging stations and fills the packaging bag, which is supported in a vertical position by the pair of grips, with the packaging bag self-discharging device according to claim 7 or 8.

10. A packaging machine characterized by having a packaging bag self-supporting discharge device at a product discharge station for discharging packaging bags containing packaged goods outside the machine, the device comprising: a packaging bag placement section provided below the packaging bag containing the packaged goods for placing the packaging bag in an upright position; a packaging bag rotation section for rotating the packaging bag containing the packaged goods by a desired angle in an upright position; and a discharge conveyor for discharging the packaging bag rotated by the packaging bag rotation section outside the machine.

11. The packaging machine according to claim 10, wherein the packaging bag placement section, the packaging bag rotation section, and the conveying conveyor are configured to be able to move up and down according to the height of the packaging machine or the packaging bags to be packaged by the packaging machine.

12. The packaging machine according to claim 10 or 11, wherein the packaging bag placement section of the self-supporting packaging bag discharge device has a reciprocating section for pushing the packaging bag placed on the packaging bag placement section toward the packaging bag rotation section.

13. A packaging machine characterized in that, at a product discharge station for discharging packaging bags containing packaged goods outside the machine, there is a packaging bag placement section provided below the packaging bags containing the packaged goods for placing the packaging bags in an upright position, and a conveyor for transporting the packaging bags placed on the packaging bag placement section outside the machine in an upright position, wherein the packaging bag placement section and the conveyor are configured to be vertically movable and equipped with a packaging bag upright discharge device.

14. The packaging machine according to claim 13, wherein the packaging bag placement section of the self-supporting packaging bag discharge device has a reciprocating section for pushing the packaging bags placed on the packaging bag placement section toward the conveyor belt.

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