A channelized reject collection device for a packaging bag

Abstract

The utility model discloses a kind of packing bag channel rejection collection devices, the packing bag channel rejection collection device includes transmission mechanism, channel guide mechanism, defective product collection device, genuine product collection device and air blowing guide device, the air blowing guide device includes the air blowing nozzle for being arranged on the top of guide plate and being used to blow air to the surface of guide plate.The utility model can realize the rejection and separation collection of the defective product packing bag and genuine product packing bag in the same row by rejecting once.The utility model is also provided with the air blowing nozzle for blowing air to the surface of guide plate, for the packing bag not moving along the direction of guide plate by inertia, air blowing nozzle can play the role of auxiliary guide, ensure that defective product packing bag and genuine product packing bag are separated and collected along the preset trajectory.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, specifically to a packaging bag sorting and collection device. Background Technology

[0002] During the production process, defective products may appear in the packaging bags, such as those with cutting errors, printing errors, or substandard heat sealing. These defective products must be removed before stacking, sorting, and bundling.

[0003] Existing bag-making machines typically operate on a multi-channel basis, capable of simultaneously cutting two, three, four, five, or even more bags. Taking the simultaneous cutting of three bags as an example, the machine includes three channels, and the corresponding detection and rejection device's conveyor mechanism also has three conveyor channels. If a defective bag appears in any of the three channels, all three bags will be rejected, tripling the scrap rate. Some rejection devices can remove the defective bag from only one of the three channels, leaving the other two channels unrejected. While this reduces the scrap rate, the two unrejected channels will have one more bag at the rear bag collection point than the rejected channel, leading to inconsistencies in the final count and requiring manual recounting.

[0004] Patent CN119303847A discloses a defect rejection system. It includes a first rejection port and a second rejection port in the conveyor channels. When a defective packaging bag reaches the first rejection port, the rejection module removes it to the first collection bin. Packaging bags from other conveyor channels (excluding the one containing the defective bag) reach the second rejection port and are then removed to the second collection bin. This system separates defective and good packaging bags in the same row, ensuring separation of defective and good products without affecting the number of packaging bags in the product collection bins. This maintains consistency in the number of bags in the collection bins across multiple conveyor channels, avoiding the need for manual counting.

[0005] However, the aforementioned patent requires two rounds of rejection to separate and collect defective packaging bags from genuine packaging bags in the same row. The two rejection rounds increase the probability of error in rejection identification and rejection calculation, which needs to be improved. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a packaging bag sorting and collection device that can remove and separate defective packaging bags and genuine packaging bags in the same row in one sorting.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A packaging bag sorting and collection device includes a conveying mechanism, a sorting and guiding mechanism, a defective product collection device, a good product collection device, and an air blowing guide device. The conveying mechanism has several conveying channels along the conveying direction, and a rejection port perpendicular to the conveying direction, penetrating all conveying channels. The sorting and guiding mechanism, the defective product collection device, the good product collection device, and the air blowing guide device are located below the conveying mechanism. The sorting and guiding mechanism includes several guide plates, which are located below the rejection port and correspond one-to-one with the conveying channels. Each guide plate can independently switch between a defective product guiding position and a good product guiding position. In the defective product guiding position, the guide plate guides the packaging bags rejected by the rejection port to the defective product collection device; in the good product guiding position, the guide plate guides the packaging bags rejected by the rejection port to the good product collection device. The air blowing guide device includes an air nozzle located above the guide plate for blowing air onto the surface of the guide plate.

[0008] As a preferred technical solution, several guide strips are arranged below the rejection port along the length of the rejection port; according to the width of the transmission channel, several adjacent guide strips form a guide plate.

[0009] As a preferred technical solution, the air nozzle and the guide strip are configured in a one-to-one correspondence.

[0010] As a preferred technical solution, each guide bar is provided with a swing drive mechanism to drive its swing.

[0011] As a preferred technical solution, the swing drive mechanism is a telescopic mechanism, one end of the guide bar is hinged below the rejection port, and the telescopic end of the telescopic mechanism is hinged to the guide bar.

[0012] As a preferred technical solution, the swing drive mechanism is a cylinder, and the air supply pipe of the air nozzle is connected to the air supply pipe of the cylinder in a one-to-one correspondence.

[0013] As a preferred technical solution, the genuine product collection device includes a genuine product collection box, which is arranged along the length direction of the rejection opening; the defective product collection device includes a defective product collection box, which is arranged along the length direction of the rejection opening; a partition plate extending upward from the box opening is provided between the genuine product collection box and the defective product collection box.

[0014] As a preferred technical solution, the packaging bag sorting and collection device further includes a sorting baffle. The sorting baffle is vertically arranged above the transmission mechanism and parallel to the transmission direction of the transmission mechanism. The sorting baffles are arranged opposite to each other to separate transmission channels.

[0015] As a preferred technical solution, the branch baffle can move perpendicular to the transmission direction of the transmission mechanism.

[0016] As a preferred technical solution, the transmission mechanism includes a primary transmission mechanism and a secondary transmission mechanism. The discharge end of the primary transmission mechanism is connected to the feed end of the secondary transmission mechanism. The discharge end of the primary transmission mechanism can move up and down. When the discharge end of the primary transmission mechanism rises, the transmission surface of the discharge end of the primary transmission mechanism is not lower than the transmission surface of the feed end of the secondary transmission mechanism. When the discharge end of the primary transmission mechanism sinks, the transmission surface of the discharge end of the primary transmission mechanism is lower than the transmission surface of the feed end of the secondary transmission mechanism. A rejection port is formed between the discharge end of the primary transmission mechanism and the feed end of the secondary transmission mechanism.

[0017] As a preferred technical solution, the transmission mechanism further includes a lifting drive mechanism for driving the discharge end of the primary transmission mechanism to move up and down, and the moving end of the lifting drive mechanism is connected to the discharge end of the primary transmission mechanism.

[0018] As a preferred technical solution, the transmission mechanism includes a primary transmission mechanism and a secondary transmission mechanism. The discharge end of the primary transmission mechanism is connected to the inlet end of the secondary transmission mechanism. The gap between the discharge end of the primary transmission mechanism and the inlet end of the secondary transmission mechanism forms a rejection port. A rejection mechanism is also provided above the rejection port, which is used to reject the packaging bag downward from the rejection port.

[0019] As a preferred technical solution, the rejection mechanism is an air-blowing rejection device or a pressure rejection device.

[0020] The beneficial effects of this utility model are as follows: This invention features guide plates below the rejection port, each corresponding to a different transmission channel. The guide plates for each transmission channel can be independently switched. If one or more defective bags appear in a row, all bags in the row are rejected at once through the rejection port. The guide plate corresponding to the transmission channel containing the defective bags then switches to the defective guide position, guiding the rejected bags to the defective collection device. Similarly, the guide plate corresponding to the transmission channel containing the good quality bags switches to the good quality guide position, guiding the rejected bags to the good quality collection device. Therefore, this invention can remove and separate defective and good quality bags in the same row in a single rejection process, avoiding increased scrap rates, manual counting, and the need for two rejection steps as in existing technologies, thus reducing the probability of error.

[0021] Meanwhile, this utility model also includes an air nozzle for blowing air onto the surface of the guide plate. For packaging bags that do not move along the direction of the guide plate due to inertia, the air nozzle can play an auxiliary guiding role, ensuring that defective packaging bags and genuine packaging bags are separated and collected along a preset trajectory. Attached Figure Description

[0022] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration: Figure 1 A schematic diagram of a channel-based rejection and collection device for packaging bags; Figure 2 A schematic diagram of a channel-separated rejection and collection device for packaging bags (with the channel baffles removed, during the rejection action); Figure 3 This is a structural diagram of the channel guide mechanism, the defective product collection device, the good product collection device, and the air blowing guide device; Figure 4 for Figure 3 A structural diagram from another angle. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0024] like Figures 1 to 4 The diagram illustrates a packaging bag sorting and collection device. The device includes a conveying mechanism 1, a sorting and guiding mechanism 2, a defective product collection device 3, a good product collection device 4, and an air blowing guide device. The conveying mechanism 1 has several conveying channels 5 along the conveying direction, and a sorting port 6 perpendicular to the conveying direction, penetrating all conveying channels 5. The sorting and guiding mechanism 2, the defective product collection device 3, the good product collection device 4, and the air blowing guide device are located below the conveying mechanism 1. The guide mechanism 2 includes several guide plates 7, which are disposed below the rejection port 6 and correspond one-to-one with the transmission channel 5. Each guide plate 7 can be independently switched between a defective product guide position and a good product guide position. The guide plate 7 in the defective product guide position guides the packaging bags rejected by the rejection port 6 to the defective product collection device 3, and the guide plate 7 in the good product guide position guides the packaging bags rejected by the rejection port 6 to the good product collection device 4. The air blowing guide device includes an air nozzle 20 disposed above the guide plate 7 for blowing air onto the surface of the guide plate 7.

[0025] When no defective packaging bags appear in the same row of packaging bags on conveyor channel 5, this row of packaging bags is conveyed downstream along conveyor mechanism 1. For example... Figure 2 As shown, if one or more defective packaging bags appear in a row, all packaging bags in the row are removed at once through rejection port 6; Figure 3 and Figure 4As shown, the guide plate 7 corresponding to the transmission channel 5 where the defective packaging bag 8 is located is switched to the defective guiding position, guiding the defective packaging bag 8 rejected by the rejection port 6 to the defective collection device 3; the guide plate 7 corresponding to the transmission channel 5 where the genuine packaging bag 9 is located is switched to the genuine guiding position, guiding the genuine packaging bag 9 rejected by the rejection port 6 to the genuine collection device 4.

[0026] For packaging bags that do not move along the direction of guide plate 7 due to inertia, the air nozzle 20 can play an auxiliary guiding role, ensuring that defective packaging bags 8 and genuine packaging bags 9 are separated and collected along a preset trajectory. For example, in the figure, genuine packaging bag 9 may be affected by the inertia of forward conveying and may not move along the direction of guide plate 7 to the genuine product collection device 4. At this time, the air nozzle 20 above genuine packaging bag 9 blows air onto genuine packaging bag 9, which can ensure that genuine packaging bag 9 is successfully collected into genuine product collection device 4. Of course, the defective product guide position and the genuine product guide position can be interchanged. After the interchange, the air nozzle 20 blows air onto the defective packaging bag 8, which is prone to deviating from the preset trajectory.

[0027] In the actual production of packaging bags, different sizes and specifications of packaging bags are often produced, which requires adjusting the position and width of the conveying channel 5. Therefore, if the guide plate 7 has a fixed position and width, it is impossible to make the guide plate 7 correspond one-to-one with the conveying channel 5. Based on this technical problem, this utility model provides a solution: several guide strips 10 are arranged along the length of the rejection port 6 below the rejection port 6; according to the width of the conveying channel 5, several adjacent guide strips 10 form a guide plate 7. Guide strips 10 with different positions and numbers can form guide plates 7 with different positions and widths, so that the guide plate 7 can flexibly correspond one-to-one with the conveying channel 5. Correspondingly, the air nozzle 20 is set one-to-one with the guide strip 10.

[0028] To enable the guide plate 7 composed of guide bars 10 to independently switch between the defective product guide position and the good product guide position, each guide bar 10 is provided with a swing drive mechanism 11 to drive its swing. In this embodiment, the swing drive mechanism 11 is a telescopic mechanism, with one end of the guide bar 10 hinged below the rejection port, and the telescopic end of the telescopic mechanism hinged to the guide bar 10; based on the linkage mechanism formed by the telescopic mechanism and the guide bar 10, when the telescopic mechanism extends, the guide plate 7 composed of guide bars 10 swings to the defective product guide position; when the telescopic mechanism retracts, the guide plate 7 composed of guide bars 10 swings to the good product guide position (of course, the defective product guide position and the good product guide position can be interchanged).

[0029] The swing drive mechanism 11 can be a conventional telescopic mechanism such as a cylinder, hydraulic cylinder, or electric cylinder. In this embodiment, the swing drive mechanism 11 is a cylinder, and the air supply pipe of the air nozzle 20 is connected to the air supply pipe of the cylinder in a one-to-one correspondence. It can be set so that when the cylinder moves to the defective product guide position or the good product guide position, the air nozzle 20 blows air in conjunction with the cylinder.

[0030] The genuine product collection device 4 includes a genuine product collection box 12, which is arranged along the length of the rejection opening 6; the defective product collection device 3 includes a defective product collection box 14, which is arranged along the length of the rejection opening 6; a partition plate 13 extending upward from the box opening is provided between the genuine product collection box 12 and the defective product collection box 14.

[0031] In order to keep the packaging bags in each transmission channel 5 in a straight line during the transmission process, without deviating or moving, the packaging bag separation and collection device also includes a dividing baffle 15. The dividing baffle 15 is vertically arranged above the transmission mechanism 1 and parallel to the transmission direction of the transmission mechanism 1. The dividing baffles 15 are arranged opposite to each other to separate the transmission channels 5.

[0032] The dividing baffle 15 can move perpendicular to the transmission direction of the transmission mechanism 1. When changing the size of the packaging bag, the dividing baffle 15 is moved to adjust the width of the transmission channel 5.

[0033] As one of the rejection methods, this utility model preferably adopts a rejection method that can quickly reject all a row of packaging bags: the transmission mechanism 1 includes a primary transmission mechanism 16 and a secondary transmission mechanism 17. The discharge end of the primary transmission mechanism 16 is connected to the feed end of the secondary transmission mechanism 17. The discharge end of the primary transmission mechanism 16 can move up and down. When the discharge end of the primary transmission mechanism 16 rises, the transmission surface of the discharge end of the primary transmission mechanism 16 is not lower than the transmission surface of the feed end of the secondary transmission mechanism 17. When the discharge end of the primary transmission mechanism 16 sinks down, the transmission surface of the discharge end of the primary transmission mechanism 16 is lower than the transmission surface of the feed end of the secondary transmission mechanism 17. A rejection port 6 is formed between the discharge end of the primary transmission mechanism 16 and the feed end of the secondary transmission mechanism 17.

[0034] When no defective packaging bags appear in the same row of packaging bags on conveyor channel 5, the discharge end of the primary conveyor mechanism 16 is in an upward state, and the packaging bags are smoothly conveyed from the primary conveyor mechanism 16 to the secondary conveyor mechanism 17; Figure 2 As shown, if one or more defective packaging bags appear in a row of packaging bags, the discharge end of the primary conveying mechanism 16 sinks downward to remove all the packaging bags from the rejection port 6.

[0035] As one of the ways to raise and lower the discharge end of the primary transmission mechanism 16, the transmission mechanism 1 also includes a lifting drive mechanism 18 for driving the discharge end of the primary transmission mechanism 16 to raise and lower. The moving end of the lifting drive mechanism 18 is connected to the discharge end of the primary transmission mechanism 16.

[0036] As a second rejection method, this invention can also choose a method of rejecting individual packaging bags through separate channels: the transmission mechanism 1 includes a primary transmission mechanism 16 and a secondary transmission mechanism 17. The discharge end of the primary transmission mechanism 16 is connected to the inlet end of the secondary transmission mechanism 17. The gap between the discharge end of the primary transmission mechanism 16 and the inlet end of the secondary transmission mechanism 17 forms a rejection port 6. A rejection mechanism is also provided above the rejection port 6, which is used to reject the packaging bag downwards from the rejection port 6. The rejection mechanism can be any existing rejection mechanism such as an air-blowing rejection device 19 (as shown in the figure) or a pressure rejection device.

[0037] When no defective packaging bags appear in the same row of packaging bags on the transmission channel 5, the packaging bags in this row are all transmitted downstream along the transmission mechanism 1; if one or more defective packaging bags appear in a row of packaging bags, all the rejection mechanisms above the transmission channel 5 will operate together and reject all the packaging bags in the row at once from the rejection port 6.

[0038] Of course, as shown in the figure, one of the rejection methods and the second rejection method can be combined to set up a rejection method that can quickly reject all the bags in a row, and a rejection mechanism can be set up to assist in rejection.

[0039] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A packaging bag sorting and collection device, characterized in that: The packaging bag sorting and collection device includes a conveying mechanism, a sorting and guiding mechanism, a defective product collection device, a good product collection device, and an air blowing guiding device; The transmission mechanism has several transmission channels along the transmission direction, and the transmission mechanism has a rejection port that runs through all the transmission channels perpendicular to the transmission direction. The channel guiding mechanism, defective product collection device, good product collection device and air blowing guiding device are arranged below the transmission mechanism. The channel guiding mechanism includes a number of guide plates, which are arranged below the rejection port and correspond one-to-one with the transmission channel. Each guide plate can be independently switched between the defective product guide position and the good product guide position. The guide plate in the defective product guide position guides the packaging bags rejected by the rejection port to the defective product collection device, and the guide plate in the good product guide position guides the packaging bags rejected by the rejection port to the good product collection device. The air blowing guide device includes an air nozzle disposed above the guide plate for blowing air onto the surface of the guide plate.

2. The packaging bag sorting and collection device according to claim 1, characterized in that: Several guide bars are arranged below the rejection port along the length of the rejection port; according to the width of the transmission channel, several adjacent guide bars form a guide plate.

3. The packaging bag sorting and collection device according to claim 2, characterized in that: The air nozzles are set in a one-to-one correspondence with the guide strips.

4. The packaging bag sorting and collection device according to claim 3, characterized in that: Each guide bar is equipped with a swing drive mechanism to drive its swing.

5. The packaging bag sorting and collection device according to claim 4, characterized in that: The swing drive mechanism is a telescopic mechanism, with one end of the guide bar hinged below the rejection port, and the telescopic end of the telescopic mechanism hinged to the guide bar.

6. The packaging bag sorting and collection device according to claim 4, characterized in that: The swing drive mechanism is a cylinder, and the air supply pipe of the air nozzle is connected to the air supply pipe of the cylinder in a one-to-one correspondence.

7. The packaging bag sorting and collection device according to claim 1, characterized in that: The genuine product collection device includes a genuine product collection box, which is arranged along the length of the rejection opening; the defective product collection device includes a defective product collection box, which is arranged along the length of the rejection opening; a partition plate extending upward from the box opening is provided between the genuine product collection box and the defective product collection box.

8. The packaging bag sorting and collection device according to claim 1, characterized in that: The packaging bag sorting and collection device also includes a sorting baffle. The sorting baffle is vertically arranged above the transmission mechanism and parallel to the transmission direction of the transmission mechanism. The sorting baffles are arranged opposite each other to separate the transmission channels.

9. The packaging bag sorting and collection device according to claim 8, characterized in that: The branch baffle can move perpendicular to the transmission direction of the transmission mechanism.

10. The packaging bag sorting and collection device according to any one of claims 1 to 9, characterized in that: The transmission mechanism includes a primary transmission mechanism and a secondary transmission mechanism. The discharge end of the primary transmission mechanism is connected to the feed end of the secondary transmission mechanism. The discharge end of the primary transmission mechanism can move up and down. When the discharge end of the primary transmission mechanism rises, the transmission surface of the discharge end of the primary transmission mechanism is not lower than the transmission surface of the feed end of the secondary transmission mechanism. When the discharge end of the primary transmission mechanism sinks, the transmission surface of the discharge end of the primary transmission mechanism is lower than the transmission surface of the feed end of the secondary transmission mechanism. A rejection port is formed between the discharge end of the primary transmission mechanism and the feed end of the secondary transmission mechanism.

11. The packaging bag sorting and collection device according to claim 10, characterized in that: The transmission mechanism also includes a lifting drive mechanism for driving the discharge end of the primary transmission mechanism to move up and down, and the moving end of the lifting drive mechanism is connected to the discharge end of the primary transmission mechanism.

12. The packaging bag sorting and collection device according to any one of claims 1 to 9, characterized in that: The transmission mechanism includes a primary transmission mechanism and a secondary transmission mechanism. The discharge end of the primary transmission mechanism is connected to the inlet end of the secondary transmission mechanism. The gap between the discharge end of the primary transmission mechanism and the inlet end of the secondary transmission mechanism forms a rejection port. A rejection mechanism is also provided above the rejection port, which is used to reject the packaging bag downward from the rejection port.

13. The packaging bag sorting and collection device according to claim 12, characterized in that: The rejection mechanism is either an air-blowing rejection device or a pressure rejection device.

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