Defective packaging rejection device

Abstract

To provide a defective packaging rejection device that can be installed within existing installation space without expanding the installation area. [Solution] Normal bagged products 10, fed onto the turntable 11 by the input conveyor 39, are transported downstream after changing their transport orientation. A discharge hole 12a for discharging defective bagged products 10 is provided in the center of the turntable 12. A gate 20 is provided on the outer circumference of the turntable 12, beyond the discharge hole 12a, which can be displaced between a closed position that prevents the bagged products 10 from moving to the discharge hole 12a and an open position that allows it. The gate 20 is set to the open position by the time the defective bagged products 10 are fed onto the turntable 12, and the defective bagged products 10, pushed forward by compressed air sprayed from the air jet 30, travel in a straight line, pass through the gate 20, reach the discharge hole 12a, fall, and are discharged out of the system.

Description

Technical Field

[0001] The present invention relates to a defective packaging reject device for discharging defective packaging products outside the system.

Background Art

[0002] For example, when a packaged article is detected as a defective product by an inspection device or the like, the defective product is discharged outside the manufacturing line system. As a device for rejecting defective packaging products outside the system, a device that guides defective packaging products outside the conveyor using a sorting arm (for example, Patent Document 1) and a device that blows defective packaging products outside the conveyor using an air jet (for example, Patent Document 2) are known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a manufacturing line that conveys defective packaging products conveyed from upstream, changes the posture to a direction orthogonal to the conveyance posture, and conveys them downstream, it is necessary to install the reject devices of Patent Documents 1 and 2 in addition to the posture conversion device, so it is necessary to secure a separate installation space, and it was difficult to install the reject device within the range of the current installation space.

[0005] An object of the present invention is to provide a defective packaging reject device that can be additionally installed within an existing installation space without expanding the installation space.

Means for Solving the Problems

[0006] To solve the aforementioned problems and achieve the intended objective, the first means is: A defective packaging rejection device that discharges defective packaging products outside the system, A turntable (11) that places the packaged goods (10) sent from the input conveyor (39) onto a rotating disc (12) and changes the transport orientation of the packaged goods (10) by rotating the rotating disc (12), A discharge hole (12a) for defective packaging is provided in the center of the aforementioned rotating disc (12), A gate (20) that can be switched between an open position that allows defective packaged products placed on the turntable (12) from the input conveyor (39) to move in a straight line, and a closed position that restricts the straight line movement of normal packaged products, The system includes an article moving means (30) that feeds defective packaged products into the discharge hole (12a) so that the defective packaged products move straight ahead from the gate (20) which is in the open position, The gate (20) is characterized in that it is opened before defective packages fed by the input conveyor (39) reach the gate (20), and when the dropping of defective packages from the discharge hole (12a) is detected, it is closed before subsequent normal packages reach the gate (20). This configuration incorporates a rejection function into the turntable, allowing for the installation of a defective packaging discharge device without expanding the existing installation space.

[0007] The second means is characterized by providing a chute (33) that guides the defective packaged products that have fallen into the discharge hole (12a) to the side of the turntable (11). With this configuration, defective packaging materials discharged from the chute can be collected in a collection box or similar container and disposed of together.

[0008] The third means is characterized by providing a side belt conveyor (44) that can guide the inner surface (10c) of the normal packaged product (10) toward the downstream direction of rotation of the turntable (11) from the position of the gate (20) when the normal packaged product fed onto the turntable (11) is rotated on the rotating disc (12) and its orientation is changed by 90 degrees. With this configuration, the side belt conveyor can effectively change the orientation of normally packaged products by 90 degrees without imposing any transport load on the products.

[0009] The fourth means is characterized by providing adjustment means (26, 49) that can move and adjust the position of the gate (20) and the side belt conveyor (44) as a distance from the rotation center of the turntable (12) according to the length in the transport direction of the packaged product (10). With this configuration, the positions of the gate and side belt conveyor can be adjusted according to the length of the packaged goods in the conveying direction relative to the turntable, so that the downstream delivery position of the normal packaged goods, which are placed on the turntable and have their orientation changed, can be set to an appropriate position according to the size of the conveyed packaged goods.

[0010] The fifth means is a detection means (41) which is installed downstream of a bagging machine (36) that feeds the packaged items (10a) into a bag and forms a bagged product (10) with an open bag opening (10b), and which detects print defects in the printed content related to the manufacturing date and other product information printed on the bagged product (10), From receiving the bagged products (10) from the input conveyor (39) to the turntable (11), and from the bagged products (10) whose orientation has been changed on the turntable (11) to being transported to the output conveyor (54), a support member (29) supports the lower surface of the bag opening (10b), A bundling device (38) is provided downstream of the conveying turntable (11) and attaches a closure to the opening (10b) of the bagged product (10), The discharge conveyor (54) sends the bagged products (10) with the bag opening facing outwards from the turntable (11) toward the bundling device (38), The system comprises a transport conveyor (55) for the bundling device (38) connected to the discharge conveyor (54), The device is characterized in that bagged products (10) that have been detected as having a printing defect by the detection means (41) and have become defective packaging products are dropped into the discharge hole (12a), while bagged products (10) that have not been detected as having a printing defect and are normal packaging products are rotated 90 degrees by the turntable (11) and transported to the bundling device (38). With this configuration, bagged products detected as defective packaging are discharged from the turntable, while only bagged products detected as normal packaging are obtained as bagged products with their openings secured with a closure.

[0011] The sixth means is characterized in that the article moving means (30) is an air jet (30) that sprays compressed air toward the rear surface in the direction of transport of the defective packaged product in time with the timing when the defective packaged product is placed from the input conveyor (39) onto the turntable (12). This configuration allows for a simpler setup compared to, for example, a device that uses movable members such as a pushing member to move defective packages toward the discharge hole. It enables the defective packages to be pushed forward toward the discharge hole with air without contact with the packages, and does not complicate or increase the size of the device. [Effects of the Invention]

[0012] According to the present invention, by adding a rejection function to a turntable, a defective packaging rejection device can be obtained in the existing installation space without expanding the installation space. For example, when replacing an existing device with a new one, the device length does not change, so it can be installed in the same space as the old device. Furthermore, it does not affect the installation position of conveyors or other processing machines connected downstream. [Brief explanation of the drawing]

[0013] [Figure 1] This is a schematic plan view showing a bagging and packaging line equipped with a defective packaging rejection device. [Figure 2] This is a schematic side view of the main components of a defective packaging rejection device, shown in a longitudinal section. [Figure 3] It is a schematic side view of the main part showing a defective packaging reject device. [Figure 4] It is a schematic plan view of the main part showing a defective packaging reject device.

Embodiments for Carrying out the Invention

[0014] Next, the defective packaging reject device according to the present invention will be described below with reference to the accompanying drawings by giving a preferred example.

Example

[0015] The defective packaging reject device of the example shown in FIG. 1 includes a turntable 11 having a rotating disk 12 that rotates to change the conveyance posture of the packaged goods (articles) 10 fed from the previous process and conveys them downstream, a discharge hole 12a opened at the center of the rotating disk 12 for discharging defective packaged goods, a gate 20 that is located on the outer peripheral side of the rotating disk 12 from the discharge hole 12a and is switched between a closed position that restricts the movement of the packaged goods 10 toward the discharge hole 12a and an open position that allows movement, and article moving means 30 for feeding defective packaged goods toward the discharge hole 12a. Further, the defective packaging reject device controls the operation of the gate 20 to be in the open position in accordance with the timing when defective packaged goods are fed from the loading conveyor 39 to the rotating disk 12, and to be in the closed position when a preceding defective packaged goods dropped from the discharge hole 12a is detected and before subsequent normal packaged goods reach the gate 20. The defective packaging reject device of the example is provided on a bagging packaging line including a bagging machine 36 that feeds bread (the packaged item) 10a into a bag to form a bagged product 10 with the bag mouth portion 10b opened, a sealing device 37 that seals the bag mouth portion 10b extending in the bag width direction from the accommodation end where the bread 10a is accommodated at the bag mouth of the bagged product 10 in which the bread 10a is bagged, and a binding device 38 that binds the bag mouth portion 10b by attaching a closure at a position between the sealing position by the sealing device 37 and the accommodation end of the bread 10a. In the example, the packaged goods 10 are described by taking a bagged product 10 in which bread 10a is bagged and the bag mouth portion 10b extends from the bread 10a, but the form of the packaged goods 10 is not limited to this.

[0016] As shown in FIG. 1, the defective packaging reject device is connected to the turntable 11 by an inlet conveyor 39 that conveys the bagged product 10 bagged by the bagging machine 36 with the bag mouth portion 10b facing upstream. The inlet conveyor 39 is connected to the peripheral edge of the turntable 12 with a height difference to form a conveying surface higher than the mounting surface of the rotating disk 12 of the turntable 11. The bagged product 10 is linearly fed toward the center of rotation of the turntable 12 with the bottom surface 10c facing forward by the inlet conveyor 39. Upstream of the sealing device 37, above the inlet conveyor 39, imaging means 40 capable of photographing the print information of the bagged product 10 conveyed by the inlet conveyor 39 with a camera is provided. Based on the image data obtained by the imaging means 40, the detection means 41 of the defective packaging reject device detects printing defects (such as smudging or incorrect printing) in the print content related to the product information printed by the printer when the product information such as the manufacturing date printed on the bagged product 10 and other quality indications of food are packaged as individual bagged products, and discriminates between defective packaging products to be discharged outside the system and normal packaging products to be retained in the packaging line.

[0017] As shown in Figures 2 to 4, the turntable 11 is provided with a donut-shaped rotating disc 12 supported by the main body 42 so as to be horizontally rotatable, and a cylindrical flange 13 hanging down from the lower surface of the discharge hole 12a opening in the center of the rotating disc 12. An annular spur gear 14 is arranged on the lower surface of the rotating disc 12, surrounding the cylindrical flange 13, and a drive gear 15 that meshes with the spur gear 14 is connected to a drive motor 16 via a transmission mechanism 17. By rotating the rotating disc 12 horizontally in a certain direction with the drive motor 16 (left rotation as shown in Figure 1), the turntable 11 is configured to rotate the bagged products 10 sent from the input conveyor 39, change their transport orientation by a predetermined angle (90 degrees in this embodiment), and transfer them to the output conveyor 54, which will be described later, for transport to the downstream side. Furthermore, an annular rail member 43 is arranged on the main body 42 of the device below the turntable 12 so as to surround the cylindrical flange 13, and a plurality of rollers 18, 19 that roll on the outer surface or upper surface of the rail member 43 are supported by the spur gear 14 at circumferential spacing, so that the turntable 12 is supported so as to maintain its rotational height with the rail member 43 and to have a constant center of rotation, allowing it to rotate stably.

[0018] As shown in Figures 2 and 4, a support frame 21 is provided above the turntable 11, and the gate 20 is suspended from an adjustment member 22 that is supported by the support frame 21 and is movable back and forth in the direction of transport of the bagged products 10 by the input conveyor 39. The gate 20 is supported by a support shaft 23 disposed on the adjustment member 22 so as to be rotatable in the vertical direction, and an operating means 25 such as an air cylinder is connected to the support shaft 23 via a link mechanism 24. The gate 20, which consists of a plate-shaped restrictor, rotates between a closed position (the dashed line position in Figure 2) where the restrictor hangs down from the support shaft 23, and an open position (the solid line position in Figure 2) where the extended end of the restrictor rotates 90 degrees upward around the support shaft 23 to assume a horizontal position, via an operating means 25 disposed on the adjustment member 22. In the closed position, the bagged products 10 fed by the input conveyor 39 abut against the gate, restricting their movement to the discharge hole 12a. In the open position, the bagged products 10 fed by the input conveyor 39 are allowed to move forward towards the discharge hole 12a. In this embodiment, the gate 20 is supported by a sliding gate adjustment means (adjustment means) 26 so as to be movable back and forth from the outer edge of the turntable toward the discharge hole 12a, and the gate 20 is positioned by the gate adjustment means 26 according to the length of the bagged products 10 being fed into the turntable 11 by the input conveyor 39 (length in the transport direction). The gate adjustment means 26 of the embodiment includes an operating handle 27 that can fix and release the position of the adjustment member 22 on the support frame 21, and is also provided with a scale 28 that can identify the movement position of the adjustment member 22.

[0019] As shown in Figure 4, a support member 29, which curves along the arc of the outer circumference of the turntable 12, is positioned to support the lower surface of the bag opening 10b of the bagged product 10, which extends outward from the periphery of the turntable 12, from the feeding position of the bagged product 10 by the input conveyor 39 to the position downstream of the turntable 12 where the orientation of the bagged product 10 is changed by 90 degrees. In this embodiment, the support member 29 is composed of multiple (two in this embodiment) support bars 29a and 29b with different radii and spaced apart radially from the turntable 12. A linear guide section 29c is connected to the outer support bar 29a, extending downstream from the position where the transport orientation of the bagged product 10 is changed by 90 degrees, along the transport direction, and is configured to support the bag opening 10b of the bagged product 10 from below as it is transported by the output conveyor 54, which will be described later.

[0020] As shown in Figures 2 and 4, above the input conveyor 39, an air jet 30 is provided with a plurality of air nozzles 30a as the article moving means, which sprays compressed air from the rear in the direction of input of the bagged products 10 toward the rear surface in the direction of transport of the bagged products 10, in accordance with the transport timing when the bagged products 10 are sent to the turntable 11 (the time when the bagged products 10 are placed on the turntable 11). In this embodiment, a plurality of air nozzles 30a (two in this embodiment) are provided, spaced apart in the width direction intersecting the transport direction and having different spraying heights. A movable body 32a is arranged on a support member 31 erected above the input conveyor 39 so as to be movable in the width direction, and a guide bar 32b is provided on the movable body 32a so as to be movable vertically and supports the air nozzles 30a.

[0021] As shown in Figures 2 and 3, a chute 33 is provided below the discharge hole 12a to discharge defective bagged products 10 that have fallen from the discharge hole 12a toward one side of the turntable 11. The chute 33 is positioned to descend at a predetermined angle from below the discharge hole 12a toward the outside of the turntable 12. Above the discharge hole 12a, a guide member 34 is suspended and supported by the support frame 21. The guide member 34 is formed in an L-shape in plan view, consisting of a lateral guide body 34a that is aligned with the feeding direction of the bagged products 10 upstream of the gate 20 in the rotational direction of the turntable 12, and a forward guide body 34b that is perpendicular to the lateral guide body 34a on the forward side of the feeding direction relative to the gate 20. This configuration allows the bagged products 10 that have passed through the open gate 20 and are moving forward toward the discharge hole 12a to be guided by the guide member 34 without flying out of the discharge hole.

[0022] As shown in Figures 2, 3, and 4, a drop detection sensor (drop detection means) 35 is provided below the turntable 12 to detect defective bagged products 10 that have fallen from the discharge hole 12a. In this embodiment, the drop detection sensor 35 is a photoelectric sensor positioned so that its light-emitting and receiving parts face each other across the discharge hole 12a, corresponding to the gap between the lower surface of the device body 42 on which the rail member 43 is provided and the upper end of the chute 33. Furthermore, multiple drop detection sensors 35 (three in this embodiment) are provided spaced apart in the width direction so that any bagged product 10 that is freely falling through the discharge hole 12a can be detected by any of the drop detection sensors 35. The gate 20 is normally positioned in the closed position and is moved to the open position in accordance with the timing when defective bagged products 10 detected as defective packaging are sent from the input conveyor 39 to the turntable 11. Furthermore, when a defective bagged product 10 is pushed forward by the air jet 30 from the gate 20, which is in the open position, and falls through the discharge hole 12a, the drop detection sensor 35 detects this, and the gate 20 is then controlled to move from the open position to the closed position before the subsequent normal packaged products 10, which are fed from the input conveyor 39, reach the gate 20's placement position.

[0023] As shown in Figures 3 and 4, above the turntable 11, downstream in the rotational direction of the turntable 12 from the feeding position of the bagged products 10 by the input conveyor 39, is a side belt conveyor 44 that guides the bottom side (inner surface) of the normal bagged products 10 when the bottom surface 10c of the bagged products 10 abuts against the gate 20 in the closed position and the normal bagged products 10 change their transport posture as the turntable 12 rotates. The side belt conveyor 44 is mounted on a stay 45 that is suspended and supported below the support frame 21 and extends in the same direction as the support frame 21, via a movable member 46 so as to be movable in the width direction of the output conveyor 54. The side belt conveyor 44 is configured to rotate using a drive motor 48 provided on the movable member 46, with an endless belt 47c wrapped around a plurality of pulleys 47a and belt guides 47b that are horizontally rotatably supported on the movable member 46, guiding the bagged products 10 that come into contact with the side belt conveyor 44 toward the downstream side. The side belt conveyor 44 also consists of a straight section 44a that extends along the transport direction of the discharge conveyor 54 (described later) and a bent section 44b that inclins from the upstream end of the straight section 44a toward the rotation center of the turntable 12. The side belt conveyor 44 maintains a state in which the bag opening 10b, which extends a predetermined length from the bagged products 10, extends outward from the turntable 12, and guides the bagged products 10 at a speed synchronized with the transport speed so that the transport posture of the bagged products 10 is changed by 90 degrees. The side belt conveyor 44 is equipped with a position adjustment means (adjustment means) 49 using an adjustment screw 52 so that it can move closer to and further away from the rotation center of the turntable 12. The position adjustment means 49 adjusts the position of the side belt conveyor 44 in the width direction perpendicular to the transport direction of the discharge conveyor 54 according to the length in the feeding direction of the bagged products 10. The position adjustment means 49 in this embodiment includes a movable member 46 that is guided by guide shafts 50, 50 on the stay 45 and can move in the width direction, a female screw member 51 disposed on the stay 45, an adjustment screw 52 that is screwed into the female screw member 51 and has one end rotatably supported while its axial movement is restricted relative to the movable member 46, and an adjustment handle 53 disposed on the other end of the adjustment screw 52 for forward and reverse rotation operation of the adjustment screw 52.

[0024] As shown in Figures 1, 3, and 4, below the rotating disc 12, an unloading conveyor 54 is positioned for a predetermined length facing downstream to linearly transport the bagged products 10, whose transport orientation has been changed by 90 degrees by the turntable 11, to the downstream side. The unloading conveyor 54 in this embodiment is constructed by arranging a plurality of endless belts in parallel to transport the bagged products 10 with their bag openings facing outwards. The upstream end of the transport conveyor 55 is connected to the downstream end of the unloading conveyor 54, and the binding device 38 is positioned to the side of the transport conveyor 55 to attach a closure to the bag opening 10b that extends far from the end containing the packaged bread 10a contained in the bagged products 10.

[0025] Next, the operation of the defective packaging rejection device according to the example will be described. In the defective packaging rejection device, with the position of the adjustment member 22 relative to the support frame 21 released by the operating handle 27, the adjustment member 22 is moved using the scale 28 as a guide to position the gate 20 on the outer circumference side of the discharge hole 12a and downstream in the feeding direction of the bagged product 10 being fed by the input conveyor 39, at a position suitable for the length of the bagged product 10 in the feeding direction. In the embodiment, the gate 20 is positioned so that, in the closed position, the bottom surface 10c of the bagged product 10 abuts against it, the entire portion of the bread 10a contained in the bagged product 10 is placed on the rotating disc 12, and the opening portion 10b of the bag extends outward from the outer circumference of the rotating disc 12 by a predetermined length.

[0026] The bagged products 10 obtained by the bagging machine 36, in which the loaves of bread 10a are packed into bags, are transported with the bag opening 10b extending toward the upstream side of the transport. During the transport process from the bagging machine 36 toward the downstream side, the camera (imaging means 40) captures product information printed on the bagged products 10, and based on the image data, the detection means 41 determines whether the printed state is correct and the product is a normal packaged product or a defective packaged product with incorrect printed content. After the bag opening 10b of the bagged products 10 is sealed in the width direction by the sealing device 37, the product is fed from the input conveyor 39 to the rotating disc 12 on the turntable 11. When a normally packaged product 10, determined to be a normally packaged product by the detection means 41, is fed onto the turntable 11, the gate 20 is in the closed position, as shown by the solid line in Figure 3. The normally packaged product 10 fed onto the turntable 11 moves straight ahead, its bottom surface 10c hitting the closed gate 20, and as the rotating disc 12 rotates, the bag opening 10b extends outwards from the outer circumference, changing the transport posture. As shown in Figure 4, the normal bagged products 10, which are transported by the rotation of the turntable 12, have their transport orientation changed as the bottom surface 10c facing the rotation center of the turntable 12 is guided by the endless belt 47c running along the bent section 44b of the side belt conveyor 44. The normal bagged products 10, whose transport orientation has been changed by 90 degrees, are then guided by the endless belt 47c running along the straight section 44a of the side belt conveyor 44 and transferred to the discharge conveyor 54 by the rotation of the turntable 12.

[0027] The normally packaged products 10 that have been handed over to the discharge conveyor 54 are handed over to the transport conveyor 55 with the bag opening portion 10b, which extends far from the edge of the bread loaf 10a, facing one side of the discharge conveyor 54. During the process of being transported on the transport conveyor 55, the bag opening portion 10b is tightened by the binding device 38 at a predetermined position on the bag opening portion 10b between the sealed portion sealed on the bag opening portion 10b by the sealing device 37 and the edge of the bread loaf 10a, and a closure is attached to fasten the bag opening portion 10b. The normally packaged products 10 with the bag opening portion 10b fastened by the closure are then transported to the next process by the transport conveyor 55.

[0028] When a defective bagged product 10, determined to be a defective package by the detection means 41, is sent from the input conveyor 39 to the turntable 11, the gate 20 is moved to the open position by the time the defective bagged product 10 is sent to the turntable 12, as shown in Figure 2. When the defective bagged product 10 is sent to the turntable 12, compressed air is sprayed from the rear of the conveying defective bagged product 10 towards the rear surface by the air jet 30, pushing the defective bagged product 10 forward and moving in a straight line until it passes through the gate 20 and falls to the discharge hole 12a. The defective bagged product 10 that falls through the discharge hole 12a is guided to one side of the turntable 11 by the chute 33 and discharged out of the system.

[0029] When a preceding defective bagged product 10 that falls through the discharge hole 12a is detected by the drop detection sensor 35 and determined to be a normal packaged product, the gate 20 is moved to the closed position before the subsequent normal bagged product 10 reaches the gate 20. As described above, the subsequent normal bagged product 10 hits the gate 20 in the closed position, is placed on the turntable 12 and rotated, so that its transport orientation is changed by 90 degrees, and is then transported toward the bundling device 38 by the discharge conveyor 54 and the transport conveyor 55.

[0030] In the defective packaging rejection device according to the embodiment, a discharge hole 12a for discharging defective packaging products out of the system is provided in the center of the rotating disk 12 of the turntable 11, and a gate 20 for opening and closing the passage to the discharge hole 12a is provided above the rotating disk 12 and in front of the discharge hole 12a. By doing so, the turntable 11 also functions as a rejection device, so it fits within the existing installation space for the turntable 11, and defective packaging products can be properly discharged without expanding the existing installation space. Therefore, for example, when replacing the device with a new one, it does not affect the installation position of conveyors and other processing machines connected to the downstream side. In addition, since the defective bagged products 10 that fall from the discharge hole 12a are guided to one side of the turntable 11 by the chute 33, the defective bagged products 10 discharged from the chute 33 can be collected in a collection box or the like and disposed of together. Furthermore, the defective bagged products 10 can be discharged with a simple configuration, and the device can be made compact. Furthermore, by moving the defective bagged products 10 toward the discharge hole 12a using the air jet 30, it is possible to push the defective bagged products 10 toward the discharge hole 12a with air without contact with them, and in a simpler configuration compared to a device configuration that uses a movable member such as a pushing member to move the defective bagged products 10 toward the discharge hole 12a, without the device configuration becoming complicated or large.

[0031] In the defective packaging rejection device according to the embodiment, when a normal bagged product 10 fed onto the turntable 11 is placed on the rotating disc 12 and rotated for transport, its bottom surface 10c is supported and guided by the side belt conveyor 44, so that the transport orientation of the normal bagged product 10 can be changed smoothly. Furthermore, when the bottom surface 10c of the normal bagged product 10 is positioned by the endless belt 47c during rotation, the extension length of the bag opening 10b from the outer circumference of the rotating disc 12 can be set to an appropriate amount, allowing it to be sent towards the binding device 38. In other words, the extension length of the bag opening 10b toward the side of the conveyor of the normal bagged product 10 transported by the discharge conveyor 54 and the transport conveyor 55 is kept constant, and the binding device 38 can properly attach the closure to the bag opening 10b.

[0032] In the defective packaging rejection device according to the embodiment, the positions of the gate 20 and the side belt conveyor 44 can be adjusted by adjustment means 26 and 49 according to the length in the feeding direction of the bagged product 10. This allows for the proper guidance of normal bagged products 10 and a change in their transport orientation in response to changes in the size of the bagged products 10. Furthermore, when the normal bagged products 10 are rotated on the turntable 12, the lower surface of the bag opening portion 10b extending outward from the turntable 12 is supported by the support member 29. This allows the normal bagged products 10 to be sent out towards the binding device 38 in a properly spread state, resulting in bagged products 10 with the bag opening portion 10b properly bound by the closure.

[0033] (Example of change) The present invention is not limited to the configuration of the embodiments, and can be modified as follows, for example. Furthermore, the configurations described in the embodiments are not limited to the following examples, and various embodiments can be adopted within the scope of the spirit of the present invention. (1) The specific configurations of the turntable 11 support mechanism, drive mechanism, gate 20 operating mechanism, etc. can be different from those of the embodiment and employ various (known) mechanisms. (2) In this embodiment, the gate 20 is configured to rotate vertically with respect to the front and back of the transport direction by an upper horizontal rotation axis (pivot shaft 23) between a closed position and an open position. However, other rotational configurations such as a configuration in which the gate rotates around an axis in the vertical direction, or a configuration in which a gate opens like double doors, or a configuration in which one or two divided gates slide vertically and horizontally (widthwise). Various opening and closing configurations may be adopted. (3) The adjustment means 26, 49 for the gate 20 and the side belt conveyor 44 may be provided as needed, and instead of manually adjusting them, they may be positioned and adjusted by a drive means such as a motor. (4) The side belt conveyor 44 may be replaced with a fixed guide. (5) The article moving means 30 may use a means to mechanically push defective packaged products toward the discharge hole 12a instead of an air jet. (6) The input conveyor 39 that feeds the bagged products 10 toward the turntable 11 can be used as a different means of moving goods, for example, by employing an extendable conveyor or an inclined conveyor to create a difference in height with the rotating disc 12 and feed the products to just before the gate 20. (7) In this embodiment, the device was used to detect and discharge defective printed products in a bread bagging machine, but it can also be applied as a defective packaging discharge device to discharge defective packaging products from other packaging machines or other processing machines. [Explanation of symbols]

[0034] 10 Bagged products (articles), 10a Bread (packaged items), 10b Bag opening 10c Bottom surface (inner surface), 11 Turntable, 12 Rotating disc, 12a Discharge hole 20 Gate, 26 Gate adjustment means (adjustment means), 29 Support member 30 Air jet (means of moving goods), 33 chute, 36 bagging machine 38 Binding device, 39 Input conveyor, 41 Detection means, 44 Side belt conveyor 49 Position adjustment means (adjustment means), 54 Discharge conveyor, 55 Conveyor conveyor

Claims

1. A defective packaging rejection device that discharges defective packaging products outside the system, A turntable that changes the transport orientation of packaged goods fed from an input conveyor to a rotating disc by rotating the disc, A hole for discharging defective packaging is provided in the center of the aforementioned rotating disc, The system includes a gate that can be switched between an open position, which allows defective packages fed from the input conveyor to the turntable to move toward the discharge hole, and a closed position, which restricts normal packages fed to the turntable from moving toward the discharge hole. A defective packaging rejection device characterized by the following:

2. The defective packaging rejection device according to claim 1, further characterized by providing a chute for guiding the defective packaging that has fallen into the discharge hole toward the side of the turntable.

3. The defective packaging rejection device according to claim 1, characterized in that a side belt conveyor is provided that can guide the inner surface of the normal packaging product toward the downstream direction of rotation of the turntable from the position of the gate when the normal packaging product fed to the turntable is rotated on the turntable and its orientation is changed by 90 degrees.

4. The defective packaging rejection device according to claim 3, further characterized in that it is equipped with an adjustment means that allows the placement positions of the gate and side belt conveyor to be adjusted as the distance from the rotation center of the turntable according to the length in the conveying direction of the packaged product.

5. A detection means is installed downstream of a bagging machine that feeds the packaged items into bags and forms bagged products with an open bag opening, and detects print defects in the printed content related to product information printed on the bagged products. From receiving the bagged products from the input conveyor to the turntable, and from the time the bagged products have been repositioned on the turntable to their transport to the output conveyor, a support member supports the lower surface of the bag opening, A fastening device is provided downstream of the conveying turntable and attaches a closure to the opening of the bag of the bagged product, The discharge conveyor sends the bagged products from the turntable toward the bundling device with the bag opening facing outwards, The system comprises a transport conveyor for the bundling device connected to the discharge conveyor, The defective packaging rejection device according to claim 1, characterized in that it drops bagged products that have been detected as having a printing defect by the detection means and have become defective packaging products into the discharge hole, and conveys bagged products that are normal packaging products and for which no printing defect has been detected to the bundling device by changing their orientation by 90 degrees using the turntable.

6. The article moving means for sending the defective packaged product to the discharge hole beyond the gate which is in the open position, The defective packaging rejection device according to any one of claims 1 to 5, characterized in that the gate is set to the open position before the defective packaging sent to the rotating disc reaches the gate, the device detects when the defective packaging has fallen out of the discharge hole, and switches to the closed position before the subsequent normal packaging reaches the gate.

7. The defective packaging rejection device according to claim 6, characterized in that the article moving means is an air jet that injects compressed air toward the rear surface in the conveying direction of the defective packaging in accordance with the timing when the defective packaging is fed from the input conveyor to the turntable.

Images