Arranging and conveying system for carton bags

Abstract

The utility model discloses a sorting and conveying system for carton bags, and belongs to the technical field of medical equipment. Which comprises a butt-joint sliding groove (2), a weighing station (3), a removing station (4) and a collecting station (5) which are sequentially arranged, and is characterized in that an arranging station (7) is arranged at the output end of the collecting station (5), a conveying line (8) is arranged in the arranging station (7), a plurality of material boxes (6) used for being in butt joint with the collecting station (5) are arranged on the conveying line (8), and the collecting station (5) is arranged on the conveying line (8). A material shortage pushing station and a material supplementing station are arranged on the running path of the conveying line (8), and the material shortage pushing station and the material supplementing station are connected through a buffering conveying belt (10). In the sorting and conveying system for the strip-shaped packaging bags, storage of the strip-shaped packaging bags and material supplementing of the material-lacking material boxes are achieved through the material-lacking pushing station and the material supplementing station which are arranged on the conveying line, and compared with the material supplementing technical scheme in the prior art, the structure is simpler, and the occupied area is smaller.

Description

Technical Field

[0001] The invention discloses a strip bag arranging and conveying system, belonging to the technical field of medical equipment. Background Art

[0002] At present, strip bag packaging products are widely used in food, medicine and other fields. After the strip bag is filled in the filling machine, it needs to be sent to the subsequent packaging machine through the conveying system for packaging. In order to improve work efficiency, multiple strip bags need to be collected in groups in the conveying system, and then the whole group of products is sent to the subsequent process. In the conveying system, before the multiple scattered strip bag products on multiple transmission channels are collected in groups, weighing stations, rejection stations and folding stations are generally provided (see the technical solution disclosed in the Chinese invention patent with application number 202311399216.5, application date October 26, 2023, and patent name "A strip bag whole row weighing mechanism") to ensure that all products are qualified products when they are collected in groups. However, the existing conveying systems generally have the following problems:

[0003] 1. Because defective products on a certain transmission channel are removed before being collected as a whole group in the conveying system, there is often a shortage of materials when collecting the whole group. Since the location of the defective products is uncertain, the location of the shortage is random. In order to ensure that the whole group can be output when entering the packaging station later, the technical solution adopted in the existing technology is as follows:

[0004] (1) In the technical solution described in the Chinese utility model patent with application number 202322452077.X and application date September 11, 2023, entitled “An Intelligent Sorting Mechanism for Strip Bags”, two rotary conveyor belts are provided, and a following device is provided between the two conveyor belts. First, a certain number of strips are sent to the first conveyor belt. After the number of strips on the first conveyor belt reaches a certain number, all the strips on the first conveyor belt are pushed to the following device. The following device then promptly sends the strip bags to the second conveyor belt. The second conveyor belt then sends the strip bags to the counting device and further pushes them to the slide. In this technical solution, multiple conveyor belt devices and multiple sets of bag pushing devices are required to achieve sorting and counting of the number of strip bags through multiple conveyor belts and bag pushing devices. The device has a complex structure, occupies a large area, and requires large equipment changes when adjusting specifications.

[0005] (2) The technical solution described in the Chinese utility model patent application number 202223094504.3, filed on November 16, 2022, and entitled “A production line for producing and packaging stick packs”, adopts a feeding method. In this technical solution, a stick pack replenishing mechanism is provided, in which a certain number of stick packs are pre-placed. However, this method makes it difficult to detect when the stick packs in the stick pack replenishing mechanism are exhausted.

[0006] 2. Because the number of conveying channels within the conveyor system is consistent, under normal circumstances (no defective products), a corresponding number of stick bags are collected in groups. However, during subsequent packaging, different customers and different products require different numbers of stick bags per box. Even the same manufacturer may produce different packaging specifications for the same product. As a result, the number of stick bags collected by the conveyor system each time often does not match the number of stick bags required for each package, making coordination difficult during subsequent packaging. To avoid this problem of quantity coordination during subsequent packaging, conveyor systems are often designed with different conveyor channels based on customer needs before shipment. However, this approach significantly increases the design and production costs of the conveyor system, making the conveyor system more expensive. Utility Model Content

[0007] The technical problem to be solved by the utility model is: to overcome the shortcomings of the existing technology and provide a strip bag sorting and conveying system that is simpler in structure and occupies a smaller area than the technical scheme of replenishing materials in the existing technology by arranging a short-material pushing station and a replenishing station on the conveyor line.

[0008] The technical solution adopted by the utility model to solve its technical problems is: the sorting and conveying system of the bag includes a docking chute, a weighing station, a rejecting station and a folding station arranged in sequence, and is characterized in that: a sorting station is arranged at the output end of the folding station, a conveying line is arranged in the sorting station, a plurality of material boxes for docking with the folding station are arranged on the conveying line, a short-material pushing station and a replenishing station are arranged on the running path of the conveying line, and the short-material pushing station and the replenishing station are connected by a buffer conveyor belt.

[0009] Preferably, an output pushing station is provided on the running path of the conveyor line, and a discharge conveyor belt docked with the output pushing station and having a controllable running step length is provided on the outside of the conveyor line.

[0010] Preferably, a short-material pushing mechanism and a replenishing material pushing mechanism are respectively provided at the short-material pushing station and the replenishing material pushing station, and the short-material pushing mechanism and the replenishing material pushing mechanism are respectively located at the two ends of the buffer conveyor belt, and the short-material pushing mechanism and the replenishing material pushing mechanism are respectively located on the inside and outside of the conveyor line.

[0011] Preferably, the short-material pushing mechanism and the replenishing material pushing mechanism both include a bottom plate, and a plurality of pushing cylinders for pushing the strip bags are arranged side by side on the surface of the bottom plate.

[0012] Preferably, a plurality of partitions are arranged at equal intervals on the surface of the buffer conveyor belt, and between two adjacent partitions there is a receiving groove for receiving the strip bags, and the spacing between the pushing cylinders is equal to the spacing between the receiving grooves.

[0013] Preferably, a push rod is installed at the piston rod of the pushing cylinder, and the push rod faces the buffer conveyor belt.

[0014] Preferably, an output pushing mechanism is provided at the output pushing station, the output pushing mechanism and the discharge conveyor belt are respectively located on the inner side and the outer side of the conveyor line, and a plurality of pushing cylinders facing the discharge conveyor belt are provided in the output pushing mechanism.

[0015] Preferably, the buffer conveyor belt adopts a synchronous belt mechanism, the drive motor is connected to the synchronous belt pulley in the synchronous belt mechanism, and the drive motor is a servo motor.

[0016] Preferably, the conveyor line is a magnetic levitation conveyor line.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this strip bag sorting and conveying system, by arranging the out-of-material pushing station and the replenishing station on the conveyor line, the strip bags are stored and the out-of-material boxes are replenished. Compared with the technical solution of replenishing materials in the existing technology, the structure is simpler and occupies a smaller area.

[0019] In this strip bag sorting and conveying system, a discharge conveyor belt controlled by a servo motor is set at the end of the sorting station, which realizes precise control of the forward distance of the discharge conveyor belt. Even if the amount of feeding and discharging on the surface of the discharge conveyor belt is uneven, smooth feeding and discharging can be achieved on the surface of the discharge conveyor belt, and the strip bags on the surface of the discharge conveyor belt are in a continuous state. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A top view of the conveyor system for collating strip bags.

[0021] Figure 2 This is a top view of the output mechanism of the strip bag sorting and conveying system.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] Among them: 1. Filling machine 2. Docking chute 3. Weighing station 4. Rejection station 5. Folding station 6. Material box 7. Arrangement station 8. Conveyor line 9. Out-of-material pushing mechanism 10. Buffer conveyor belt 11. Frame 12. Replenishing pushing mechanism 13. Discharge conveyor belt 14. Output pushing mechanism 15. Drive motor 16. Pushing cylinder 17. Bottom plate 18. Push rod 19. Partition 20. Strip bag. DETAILED DESCRIPTION

[0024] Figures 1-3 This is the best embodiment of the present invention, Figures 1-3 The utility model is further described.

[0025] like Figure 1 As shown, a strip bag sorting and conveying system (hereinafter referred to as sorting and conveying system) includes a docking chute 2, a weighing station 3, a rejecting station 4 and a gathering station 5 arranged in sequence. The docking chute 2 is docked with the filling machine 1 to transfer the filled strip bags 20 (see Figure 3 ) is sent into multiple conveying channels in the docking chute 2.

[0026] The strip bags 20 pass through the conveying channel within the docking chute 2 and enter the weighing station 3 for weighing. Products deemed defective after weighing are rejected at the rejection station 4. Qualified products are gathered at the collection station 5 and sent to the magazine 6 at the end of the collection station 5. Because the weighing at the weighing station 3 and the rejection at the rejection station 4 are both controlled by the main controller, when the strip bags 20 are delivered to the magazine 6 for collection at the output of the collection station 5, the controller is aware of any missing materials and their locations.

[0027] The specific structures and implementation methods of the filling machine 1, docking chute 2, weighing station 3, rejection station 4 and folding station 5 can all be implemented using common knowledge in the field (such as the technical solution disclosed in the Chinese invention patent with application number 202311399216.5, application date October 26, 2023, and patent name "A strip bag whole row weighing mechanism"), which will not be repeated here.

[0028] A sorting station 7 is also provided at the output end of the folding station 5, and the material box 6 is located in the sorting station 7. Figure 2 The finishing station 7 includes a frame 11, and a conveyor line 8 is provided on the surface of the frame 11. The conveyor line 8 is preferably implemented by a magnetic levitation conveyor line commonly used in the art.

[0029] One side of the conveyor line 8 is its input end, which is used to connect with the gathering station 5. A plurality of material boxes 6 are arranged on the conveyor line 8. Most of the material boxes 6 circulate under the drive of the conveyor line 8, and the input end of the conveyor line 8 is the starting end of the material box 6. Along the running direction of the conveyor line 8, the two stations following the starting end of the material box 6 are the short-material pushing station and the replenishing station, which are connected by a buffer conveyor belt 10.

[0030] The buffer conveyor belt 10 is located on the outside of the conveyor line 8. The short-material pushing mechanism 9 and the replenishing material pushing mechanism 12 are respectively provided at the short-material pushing station and the replenishing material station. The short-material pushing mechanism 9 and the replenishing material pushing mechanism 12 are respectively located at the two ends of the buffer conveyor belt 10. The replenishing material pushing mechanism 12 is located on the side of the buffer conveyor belt 10 away from the conveyor line 8, and the short-material pushing mechanism 9 is located on the inner side of the conveyor line 8.

[0031] like Figure 3 As shown, a number of partitions 19 are arranged at equal intervals on the surface of the buffer conveyor belt 10. Between any two partitions 19 is a receiving slot for accommodating strip bags 20. The low-feed pushing mechanism 9 includes a base plate 17, on which a plurality of push cylinders 16 are arranged side by side. The distance between adjacent push cylinders 16 is equal to the distance between adjacent receiving slots on the surface of the buffer conveyor belt 10. A push rod 18 is horizontally mounted at the end of the piston rod of each push cylinder 16. The refill pushing mechanism 12 can employ the same structure as the low-feed pushing mechanism 9 and will not be described in detail here.

[0032] An output pushing station is also provided on the side of the conveyor line 8. The output pushing station is arranged opposite to the conveyor line 8 and the buffer conveyor belt 10. The output pushing station includes an output pushing mechanism 14 and a discharge conveyor belt 13. The discharge conveyor belt 13 is located outside the conveyor line 8, and the output pushing mechanism 14 is located inside the conveyor line 8. The output pushing mechanism 14 can adopt the same structure as the short-material pushing mechanism 9 mentioned above, and will not be repeated here.

[0033] The discharge conveyor belt 13 is preferably implemented using a synchronous belt mechanism known in the art, comprising a synchronous belt and a driving pulley and a driven pulley at each end of the synchronous belt. A drive motor 15 is connected to the driving pulley to drive the synchronous belt. In this sorting and output system, the drive motor 15 is preferably implemented using a servo motor to achieve precise stepping of the synchronous belt.

[0034] The specific working process and working principle are as follows:

[0035] As can be seen from the above, when the strip bags 20 are output from the folding station 5 and enter the magazine 6, the controller detects whether there is any shortage of material in the current magazine 6 and the location of the shortage. If the current magazine 6 is full (not short of material), the magazine 6 is directly moved to the output pushing mechanism 14 under the drive of the conveyor line 8. The pushing cylinder 16 within the output pushing mechanism 14 pushes all the strip bags 20 in the current magazine 6 onto the surface of the discharge conveyor 13. At the output end of the discharge conveyor 13, a transfer mechanism for the next process step transfers a certain number of strip bags 20 from the surface of the discharge conveyor 13 to the subsequent process for packaging. At this time, the drive motor 15 rotates, causing the discharge conveyor 13 to advance a certain distance, reserving the corresponding space. When the next packaged magazine 6 moves to the output pushing mechanism 14, the output pushing mechanism 14 can transfer the strip bags 20 in the magazine 6 to the surface of the discharge conveyor 13.

[0036] When the cassette 6 docked at the folding station 5 is out of material, the cassette 6 is first moved to the out-of-material pushing station driven by the conveyor line 8. The pushing cylinder 16 in the out-of-material pushing mechanism 9 is activated to push all the strip bags 20 in the cassette 6 into the receiving groove on the surface of the buffer conveyor belt 10. The buffer conveyor belt 10 then moves to reserve space for the next cassette 6 with out of material to arrive and receive the corresponding strip bag 20.

[0037] When the accommodating groove on the surface of the buffer conveyor belt 10 is unable to accommodate any more strip bags, the next cassette 6 with insufficient material moves under the drive of the conveyor line 8. This cassette 6 skips the insufficient material pushing mechanism 9 and moves to the material pushing station. Since the location of the insufficient material in the cassette 6 is known, the controller controls the corresponding pushing cylinder 16 in the replenishing pushing mechanism 12 to operate, and the strip bags 20 temporarily stored on the surface of the buffer conveyor belt 10 are sent to the vacant position in the cassette 6, thus replenishing the strip bags 20 in the cassette 6. The replenished cassette 6 moves to the output pushing station, and the strip bags 20 are delivered to the surface of the discharge conveyor belt 13 according to the above process.

[0038] When the number of strip bags 20 delivered to the surface of the discharge conveyor belt 13 by the output pushing mechanism 14 each time is not equal to the number of strip bags 20 taken away from the surface of the discharge conveyor belt 13 each time during the packaging process, the controller controls the driving motor 15 to rotate to achieve a secondary counting of the surface of the discharge conveyor belt 13, for example:

[0039] (1) When the number of strip bags 20 delivered to the surface of the discharge conveyor belt 13 by the output pushing mechanism 14 each time (taking 12 as an example) is greater than the number of strip bags 20 removed from the surface of the discharge conveyor belt 13 each time during the packaging process (taking 8 as an example), after the 8 strip bags 20 are removed from the surface of the discharge conveyor belt 13 during the packaging process, a space for 8 strip bags 20 is formed at the output end of the discharge conveyor belt 13, and the drive motor 15 controls the discharge conveyor belt 13 to advance by a distance of 8 strip bags 20. At this time, there is still a space of 4 strip bags 20 at the input end of the discharge conveyor belt 13. Therefore, after eight strip bags 20 are taken away from the surface of the discharge conveyor belt 13 during the packaging process, the drive motor 15 controls the discharge conveyor belt 13 to advance by a distance of four strip bags 20, reserving space for twelve strip bags 20, so as to ensure that the output pushing mechanism 14 can push the strip bags 20 of the next fully loaded material box 6 as a whole to the surface of the discharge conveyor belt 13 again, so that the strip bags 20 on the surface of the packaging discharge conveyor belt 13 are in a continuous state.

[0040] (2) When the number of strip bags 20 that the output pushing mechanism 14 delivers to the surface of the discharge conveyor belt 13 each time (taking 8 as an example) is less than the number of strip bags 20 that are removed from the surface of the discharge conveyor belt 13 each time during the packaging process (taking 12 as an example), after the packaging process removes 12 strip bags 20 from the surface of the discharge conveyor belt 13, a vacant space for 12 strip bags 20 is formed at the output end of the discharge conveyor belt 13, and the drive motor 15 controls the discharge conveyor belt 13 to advance by a distance of 8 strip bags 20. Space for 8 strip bags 20 is reserved to ensure that the output pushing mechanism 14 can push the strip bags 20 of the next fully loaded material box 6 to the surface of the discharge conveyor belt 13 again.

[0041] After the next fully loaded material box 6 pushes the fully loaded strip bags 20 as a whole onto the surface of the discharge conveyor belt 13, there is still space for four strip bags 20 at the output end of the discharge conveyor belt 13. The drive motor 15 drives the buffer conveyor belt 10 forward to make room for four strip bags 20, so as to ensure that the packaging process can remove another eight strip bags 20 from the surface of the discharge conveyor belt 13.

[0042] As can be seen from the above, in this sorting and conveying system, a discharge conveyor belt 13 controlled by a servo motor is provided at the end of the sorting station 7, which realizes precise control of the forward distance of the discharge conveyor belt 13. Even when the amount of material in and out on the surface of the discharge conveyor belt 13 is not equal, smooth feeding and discharging can be achieved on the surface of the discharge conveyor belt 13, and the strip bags 20 on the surface of the discharge conveyor belt 13 are in a continuous state.

[0043] As for the control of the rotation angle of the drive motor 15 each time it rotates, although a computer program is designed, the rotation amount of the drive motor 15 each time it rotates is a simple addition and subtraction calculation, which is a common practice among those skilled in the art, and the control of the servo motor by the controller is common knowledge in this field. Therefore, the computer program itself does not constitute creative work for this application.

[0044] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A strip bag arrangement and conveying system, comprising a docking chute (2), a weighing station (3), a rejecting station (4) and a folding station (5) arranged in sequence, characterized in that: A sorting station (7) is provided at the output end of the folding station (5), a conveying line (8) is provided in the sorting station (7), a plurality of material boxes (6) for docking with the folding station (5) are provided on the conveying line (8), a short-material pushing station and a material replenishing station are provided on the running path of the conveying line (8), and the short-material pushing station and the material replenishing station are connected by a buffer conveyor belt (10).

2. The strip bag arrangement and conveying system according to claim 1, characterized in that: An output pushing station is also provided on the running path of the conveyor line (8), and a discharge conveyor belt (13) is also provided on the outside of the conveyor line (8) and is connected to the output pushing station and has a controllable running step length.

3. The strip bag arrangement and conveying system according to claim 1, characterized in that: A material shortage pushing mechanism (9) and a material replenishing pushing mechanism (12) are respectively provided at the material shortage pushing station and the material replenishing pushing station. The material shortage pushing mechanism (9) and the material replenishing pushing mechanism (12) are respectively located at the two ends of the buffer conveyor belt (10), and the material shortage pushing mechanism (9) and the material replenishing pushing mechanism (12) are respectively located on the inner side and the outer side of the conveyor line (8).

4. The strip bag arrangement and conveying system according to claim 3, characterized in that: The short-material pushing mechanism (9) and the replenishing material pushing mechanism (12) both comprise a bottom plate (17), and a plurality of pushing cylinders (16) for pushing the strip bags (20) are arranged side by side on the surface of the bottom plate (17).

5. The strip bag arrangement and conveying system according to claim 4, characterized in that: A plurality of partitions (19) are arranged at equal intervals on the surface of the buffer conveyor belt (10), and a receiving groove for receiving the strip bags (20) is provided between two adjacent partitions (19). The spacing of the pushing cylinders (16) is equal to the spacing of the receiving grooves.

6. The strip bag arrangement and conveying system according to claim 4, characterized in that: A push rod (18) is installed at the piston rod of the push cylinder (16), and the push rod (18) is directly opposite to the buffer conveyor belt (10).

7. The strip bag arrangement and conveying system according to claim 2, characterized in that: An output pushing mechanism (14) is provided at the output pushing station. The output pushing mechanism (14) and the discharge conveyor belt (13) are respectively located on the inner side and the outer side of the conveyor line (8). A plurality of pushing cylinders (16) facing the discharge conveyor belt (13) are provided in the output pushing mechanism (14).

8. The strip bag arranging and conveying system according to claim 1, characterized in that: The buffer conveyor belt (10) adopts a synchronous belt mechanism, and the drive motor (15) is connected to a synchronous pulley in the synchronous belt mechanism, and the drive motor (15) is a servo motor.

9. The strip bag arrangement and conveying system according to claim 1, characterized in that: The conveyor line (8) is a magnetic suspension conveyor line.

Images