Material variable-pitch conveying and boxing production line and boxing process

By designing a variable-pitch material conveying and cartoning production line, and utilizing variable-pitch connection components and robotic gripping devices, the problems of complex structure and blister misalignment in existing blister cartoning production lines have been solved, achieving flexible production switching and stable conveying.

CN122426422APending Publication Date: 2026-07-21ZHEJIANG YONGCHUANG MACHINERY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG YONGCHUANG MACHINERY
Filing Date
2026-05-12
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing blister packing production lines have complex structures, making it difficult to flexibly switch production needs. Furthermore, blister packs are prone to shifting and piling up during variable-pitch conveying, resulting in a large space occupation.

Method used

A material variable-pitch conveying and boxing production line was designed, including first and second production lines arranged in parallel and a gripping device. The variable-pitch connection component realizes the flexible transfer of medicine blister packs. The robotic arm grips the medicine blister packs for pillow packaging or direct boxing. The drive mechanism and pallet support structure ensure the stable conveying of medicine blister packs.

Benefits of technology

It enables rapid movement and transfer of blister packs, allowing for flexible switching between pillow pack and boxing processes according to production needs, reducing blister pack offset and accumulation, and improving the space utilization efficiency of the production line.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a material variable-pitch conveying and boxing production line and a boxing process. The application solves the problem of single function and inconvenient use of the existing medicine plate boxing production line. Through reasonable layout of the device, the movement and transfer of the medicine plate can be quickly realized. When the medicine plate needs to be pillow-packed, the medicine plate can be directly transferred from a blister machine to a pillow-packing machine and then to a boxing machine, so that the pillow-packed medicine plate is boxed. When the medicine plate does not need to be pillow-packed, the medicine plate is grabbed by a second mechanical hand and transferred to a second production line, and then the variable-pitch connection assembly on the second production line is used to change the pitch, and then the medicine plate on the second production line is grabbed by a third mechanical hand and transferred to the boxing machine for boxing. The application can realize pillow-packing and boxing of the medicine plate and direct boxing of the medicine plate, and can be flexibly switched according to production requirements.
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Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to a material variable-pitch conveying and boxing production line and boxing process. Background Technology

[0002] Blister packaging machines are commonly used automated equipment in the pharmaceutical packaging industry. They typically include blister formation, drug filling, heat sealing and cutting, and subsequent cartoning. In actual production, to ensure aseptic and safety during the drug packaging process, blister formation and sealing processes are usually located in a clean area, while cartoning is conducted in a non-clean area. Therefore, after blister packaging, the blister packs need to be transferred.

[0003] Furthermore, after transfer, blister packs often require differentiated processing based on varying packaging requirements: some blister packs need to be directly boxed, while others need to be bagged first and then boxed. Existing blister packing production lines typically only perform a single function, or have complex structures and unreasonable layouts, making it difficult to meet the production needs for flexible switching. In actual production, during the conveying process, in variable-pitch conveyor stations, blister pack transfer usually utilizes the height difference between two lines, sliding from one station line to another under gravity. This setup occupies a large space, and the blister packs are prone to positional shifts when sliding to another station line by gravity, leading to accumulation among multiple blister packs. Existing technology has room for improvement. Summary of the Invention

[0004] The present invention addresses the aforementioned existing conditions by providing a material variable-pitch conveying and cartoning production line, comprising a first production line and a second production line arranged in parallel for conveying blister packs, and a gripping device for gripping and transferring the blister packs. The first production line is connected at both ends to a blister packing machine and a cartoning machine, respectively. The first production line includes a first conveyor belt and a second conveyor belt connected to the blister packing machine and the cartoning machine, respectively. A blister packing machine for packing the blister packs is arranged between the first and second conveyor belts. The second production line includes a first workstation line and a second workstation line connected together, with different speeds. A variable-pitch connecting assembly is arranged between the first and second workstation lines. The variable-pitch connecting assembly includes a first main shaft. The first workstation line includes multiple parallel first conveyor belts, and the second workstation line includes multiple parallel second conveyor belts. One end of each of the first and second conveyor belts is connected to the first main shaft.

[0005] Preferably, the gripping device includes a first robotic arm and a second robotic arm disposed on a first conveyor belt, and also includes a third robotic arm and a fourth robotic arm disposed on a second conveyor belt.

[0006] Preferably, the second production line also includes a frame, in which the first and second workstation lines are arranged.

[0007] Preferably, the first main shaft of the variable pitch connection assembly is rotatably mounted on the frame, and also includes a plurality of first drive wheels fixedly mounted on the first main shaft. One end of the first conveyor belt is sleeved on the first drive wheel. Two second driven wheels are rotatably mounted on the first main shaft on both sides of the first drive wheel. One end of the second conveyor belt is sleeved on the second driven wheel. A third main shaft is provided at the end of the first work station line away from the variable pitch connection assembly. The end of the first conveyor belt away from the variable pitch connection assembly is sleeved on the third main shaft through the first driven wheel.

[0008] Preferably, a second spindle is provided at the end of the second work station line away from the aforementioned variable pitch connection assembly. A plurality of second drive wheels are provided on the second spindle, and one end of the aforementioned second conveyor belt is sleeved on the second drive wheel. The frame is respectively provided with drive mechanisms that drive the first spindle and the second spindle to rotate.

[0009] Preferably, the drive mechanism includes a motor fixedly mounted on a frame, a first sprocket for outputting power on the motor, a second sprocket cooperating with the first sprocket fixedly mounted on the first spindle and the second spindle, and a transmission chain sleeved on the first sprocket and the second sprocket.

[0010] Preferably, the drive mechanism further includes a tensioning wheel for adjusting the tension of the transmission chain. The tensioning wheel is located between the first sprocket and the second sprocket, and is movably mounted on the frame.

[0011] Preferably, the first conveyor belt and the second conveyor belt are each provided with a plurality of blocks that push the medicine plate to move along the length of the second production line.

[0012] Preferably, the first main shaft is provided with three first driving wheels and six second driven wheels, and the first conveyor belt and two second conveyor belts located in the same straight direction form a conveyor line for conveying medicine plates.

[0013] Preferably, a first pallet for supporting the medicine blister pack is fixedly provided on both sides of the first conveyor belt. The side of the first pallet away from the first conveyor belt is fixedly provided with a protruding edge. In the same conveyor line, a second pallet for supporting the medicine blister pack is provided between two adjacent second conveyor belts. The second pallet is located in the same straight direction as the first conveyor belt.

[0014] Preferably, the outer sides of the two second conveyor belts are provided with partitions connected to the aforementioned protrusions, and the partitions and the corresponding protrusions are located in the same straight direction.

[0015] A boxing process includes the following steps: S1: The material is processed by the blister packing machine to form a blister pack, which then enters the first conveyor belt; S2: When the blister pack needs to be wrapped, the first robot arm grabs the blister pack and puts it into the wrapping machine for wrapping. After wrapping, the fourth robot arm grabs the blister pack and puts it into the second conveyor belt and puts it into the cartoning machine for cartoning. When the blister pack does not need to be wrapped, the second robot arm grabs the blister pack and puts it into the second production line. The third robot arm grabs the blister pack on the second production line and puts it into the second conveyor belt and puts it into the cartoning machine for cartoning. S3: When the S2 Chinese medicine plate moves on the second production line, the pitch is changed through the pitch-changing connection component.

[0016] Compared with existing technologies, this invention, through a reasonable layout of the device, can quickly realize the movement and transfer of blister packs. When blister packs need to be packaged, they can go directly from the blister pack machine to the packaging machine and finally into the cartoning machine to achieve packaging. When blister packs do not need to be packaged, a second robotic arm grabs the blister packs and puts them into a second production line. On the second production line, after the pitch is changed by the pitch-changing connecting component, a third robotic arm grabs the blister packs from the second production line and puts them into the cartoning machine for packaging. This invention can realize both packaging and direct packaging of blister packs, and can flexibly switch according to production needs. Attached Figure Description

[0017] Figure 1 This is a top view of the present invention; Figure 2 A front view of the invention; Figure 3 This is a schematic diagram of the second production line; Figure 4 This is a structural diagram of the first and second workstation lines; Figure 5 This is a top view of the second production line; Figure 6 for Figure 5 Sectional view at point B; Figure 7 for Figure 3 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram of the production process.

[0018] The diagram shows the following markings: 1. First production line; 2. Second production line; 3. Blister machine; 4. Cartoning machine; 5. First conveyor belt; 6. Second conveyor belt; 7. Pillow bag machine; 8. First robot arm; 9. Second robot arm; 10. Third robot arm; 11. Fourth robot arm; 12. First workstation line; 13. Second workstation line; 14. Variable pitch connection assembly; 15. Frame; 16. First conveyor belt; 17. Second conveyor belt; 18. First spindle; 19. First drive wheel; 20. Second driven wheel; 21. Second spindle; 22. Second drive wheel; 23. Drive mechanism; 24. Motor; 25. First sprocket; 26. Second sprocket; 27. Transmission chain; 28. Tensioner wheel; 29. ​​Stop; 30. First pallet; 31. Protruding flange; 32. Second pallet; 33. Partition; 34. Third spindle; 35. First driven wheel. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings: like Figure 1-8 As shown, a variable-pitch conveying and cartoning production line includes a first production line 1 and a second production line 2 arranged in parallel for conveying blister packs, and a gripping device for gripping and transferring the blister packs. The first production line 1 is connected at both ends to a blister packing machine 3 and a cartoning machine 4, respectively. The first production line 1 includes a first conveyor belt 5 and a second conveyor belt 6 connected to the blister packing machine 3 and the cartoning machine 4, respectively. A blister packing machine 7 for wrapping the blister packs is arranged between the first conveyor belt 5 and the second conveyor belt 6. The gripping device includes a first robotic arm 8 and a second robotic arm 9 mounted on the first conveyor belt, and also includes a third robotic arm mounted on the second conveyor belt. The second production line 2 includes a robot arm 10 and a fourth robot arm 11. The second production line 2 includes a first work station line 12 and a second work station line 13 connected to each other. The first work station line 12 and the second work station line 13 have different speeds. A variable pitch connection assembly 14 is provided between the first work station line 12 and the second work station line 13. The variable pitch connection assembly 14 includes a first spindle 18. The first work station line 12 includes a plurality of parallel first conveyor belts 16. The second work station line 13 includes a plurality of parallel second conveyor belts 17. One end of each of the first conveyor belts 16 and one end of each of the second conveyor belts 17 are connected to the first spindle 18.

[0020] Through the reasonable layout of the device, the movement and transfer of blister packs can be realized quickly. When blister packs are needed, they can go directly from the blister pack machine 3 to the blister pack machine 7 and finally into the cartoning machine 4 to achieve blister packing. When blister packs are not needed, the second robot arm 9 grabs the blister pack and enters the second production line 2. After the pitch is changed by the pitch-changing connecting component 14 on the second production line 2, the third robot arm 10 grabs the blister pack on the second production line 2 and enters the cartoning machine 4 for cartoning. This can realize both blister packing and cartoning and blister pack direct cartoning, making production more flexible.

[0021] The second production line 2 also includes a frame 15, within which the first workstation line 12 and the second workstation line 13 are disposed. The first main shaft 18 of the variable pitch connection assembly 14 is rotatably mounted on the frame 15 and includes a plurality of first drive wheels 19 fixedly mounted on the first main shaft 18. One end of the first conveyor belt 16 is sleeved on the first drive wheel 19. Two second driven wheels 20 are rotatably mounted on the first main shaft 18 on both sides of the first drive wheel 19. One end of the second conveyor belt 17 is sleeved on the second driven wheel 20. A third main shaft 34 is disposed at the end of the first workstation line 12 away from the variable pitch connection assembly 14. The end of the first conveyor belt 16 away from the variable pitch connection assembly 14 is sleeved on the third main shaft 34 via a first driven wheel 35. A second spindle 21 is provided at the end of the second workstation line 13 away from the aforementioned variable pitch connection assembly 14. Multiple second drive wheels 22 are mounted on the second spindle 21. One end of the aforementioned second conveyor belt 17 is fitted onto the second drive wheels 22. Drive mechanisms 23 for driving the first spindle 18 and the second spindle 21 are respectively mounted on the frame 15. The drive mechanism 23 includes a motor 24 fixedly mounted on the frame 15. A first sprocket 25 for outputting power is mounted on the motor 24. Second sprockets 26 cooperating with the first sprocket 25 are fixedly mounted on the first spindle 18 and the second spindle 21. A transmission chain 27 is fitted onto the first sprocket 25 and the second sprocket 26. The drive mechanism 23 also includes a tensioning wheel 28 for adjusting the tension of the transmission chain 27. The tensioning wheel 28 is located between the first sprocket 25 and the second sprocket 26 and is movably mounted on the frame 15. The first conveyor belt 16 and the second conveyor belt 17 are driven to rotate by two sets of drive mechanisms 23 respectively, which can conveniently adjust the spacing according to different materials.

[0022] The first conveyor belt 16 and the second conveyor belt 17 are each equipped with a plurality of stops 29 for moving the medicine blister packs along the length of the second production line 2. The first main shaft 18 is equipped with three first drive wheels 19 and six second driven wheels 20. The first conveyor belt 16 and the two second conveyor belts 17, located in the same straight direction, form a conveyor line for transporting medicine blister packs. First support plates 30 are fixedly installed on both sides of the first conveyor belt 16 to support the medicine blister packs during transport. A raised edge 31 is fixedly installed on the side of the first support plate 30 away from the first conveyor belt 16. Within the same conveyor line, a second support plate 32 is installed between two adjacent second conveyor belts 17 to support the medicine blister packs during transport. The second support plate 32 is located in the same straight direction as the first conveyor belt 16. Partition plates 33 connected to the raised edges 31 are installed on the outer sides of the two second conveyor belts 17. The partition plates 33 and the corresponding raised edges 31 are located in the same straight direction. By partially overlapping the first conveyor belt 16 and the second conveyor belt 17 on the main shaft, and by using only one first conveyor belt 16 to transport the medicine blister during its movement, when the medicine blister moves above the first main shaft 18, the stop block 29 on the first conveyor belt 16 pushes the medicine blister towards the second conveyor belt 17. Under the action of inertia and the friction of the two second conveyor belts 17, the medicine blister smoothly enters the second work station line 13. When the medicine blister contacts the second conveyor belts 17, the two second conveyor belts 17 are located below the two ends of the medicine blister, which can transport the medicine blister more smoothly. During the movement of the medicine blister within the first work station line 12, the two ends of the medicine blister are limited by the protrusions 31 on the first support plates 30 on both sides of the first conveyor belt 16. After the medicine blister enters the second work station line 13, it is limited by the partition 33 connected to the protrusions 31, so that the medicine blister always moves in a predetermined straight line during the overall transportation process within the second production line 2.

[0023] When only the blister packs need to be produced for boxing, the first robotic arm 8 and the second robotic arm 9 simultaneously grab the blister packs on the first conveyor belt 5 and put them into the blister packing machine 7 for blister packing. The blister packs are then grabbed by the third robotic arm 10 and the fourth robotic arm 11 and conveyed through the second conveyor belt 6 into the boxing machine 4 for boxing.

[0024] When only bare blister packs need to be produced for boxing, the first robot 8 and the second robot 9 simultaneously grab the blister packs on the first conveyor belt 5 and put them into the second production line 2. After the pitch is changed by the pitch-changing connecting component 14, the third robot 10 and the fourth robot 11 grab the pitch-changed blister packs and put them into the second conveyor belt 6 and into the boxing machine 4 for boxing.

[0025] When it is necessary to simultaneously produce boxed blister packs and boxed bare blister packs, the first robot 8 picks up the blister packs and puts them into the blister packing machine 7 for boxing. The boxed blister packs are then picked up by the fourth robot 11 and placed into the boxing machine 4 via the second conveyor belt 6 for boxing. The second robot 9 picks up the blister packs and puts them into the second production line 2. After the pitch is changed by the pitch-changing connecting component 14, the third robot 10 picks up the pitch-changed blister packs and puts them into the boxing machine 4 via the second conveyor belt 6 for boxing. This process can simultaneously produce boxed bare blister packs and boxed blister packs.

[0026] The present invention also includes a boxing process, comprising the following steps: S1: The material is processed by the blister pack machine 3 to form a medicine blister pack, which then enters the first conveyor belt 5; S2: When the blister pack needs to be wrapped, the first robot arm 8 grabs the blister pack and puts it into the wrapping machine 7 for wrapping. After wrapping, the blister pack is grabbed by the fourth robot arm 11 and put into the second conveyor belt 6 and then into the cartoning machine 4 for cartoning. When the blister pack does not need to be wrapped, the second robot arm 9 grabs the blister pack and puts it into the second production line 2. The third robot arm 10 grabs the blister pack on the second production line 2 and puts it into the second conveyor belt 6 and then into the cartoning machine 4 for cartoning. S3: When the S2 Chinese medicine plate moves on the second production line 2, the pitch is changed through the pitch-changing connection component 14.

[0027] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications to the specification derived therefrom are still within the scope of protection of this invention.

Claims

1. A material variable-pitch conveying and cartoning production line, characterized in that, The system includes a first production line (1) and a second production line (2) arranged in parallel for conveying blister packs, and a gripping device for gripping and transferring the blister packs. The first production line (1) is connected at both ends to a blister packing machine (3) and a cartoning machine (4), respectively. The first production line (1) includes a first conveyor belt (5) and a second conveyor belt (6) connected to the blister packing machine (3) and the cartoning machine (4), respectively. A pillow-packing machine (7) for wrapping the blister packs is located between the first conveyor belt (5) and the second conveyor belt (6). The second production line (2) includes a first workstation line (12) and a second workstation line (13) connected to each other. 13), the speed of the first work line (12) is different from that of the second work line (13), and a variable pitch connection component (14) is provided between the first work line (12) and the second work line (13). The variable pitch connection component (14) includes a first spindle (18). The first work line (12) includes a plurality of parallel first conveyor belts (16), and the second work line (13) includes a plurality of parallel second conveyor belts (17). One end of the first conveyor belt (16) and one end of the second conveyor belt (17) are both connected to the first spindle (18).

2. The material variable-pitch conveying and cartoning production line according to claim 1, characterized in that, The gripping device includes a first robotic arm (8) and a second robotic arm (9) mounted on a first conveyor belt, and also includes a third robotic arm (10) and a fourth robotic arm (11) mounted on a second conveyor belt.

3. The material variable-pitch conveying and cartoning production line according to claim 1, characterized in that, The second production line (2) also includes a frame (15), in which the first work station line (12) and the second work station line (13) are located.

4. The material variable-pitch conveying and cartoning production line according to claim 3, characterized in that, The first main shaft (18) of the variable pitch connection assembly (14) is rotatably mounted on the frame (15), and also includes a plurality of first drive wheels (19) fixedly mounted on the first main shaft (18). One end of the first conveyor belt (16) is sleeved on the first drive wheel (19). Two second driven wheels (20) are rotatably mounted on the first main shaft (18) on both sides of the first drive wheel (19). One end of the second conveyor belt (17) is sleeved on the second driven wheel (20). A third main shaft (34) is provided at the end of the first work station line (12) away from the variable pitch connection assembly (14). The end of the first conveyor belt (16) away from the variable pitch connection assembly (14) is sleeved on the third main shaft (34) through the first driven wheel (35).

5. A material variable-pitch conveying and cartoning production line according to claim 4, characterized in that, The second work station line (13) is provided with a second main shaft (21) at one end away from the above-mentioned variable pitch connection assembly (14). The second main shaft (21) is provided with a plurality of second drive wheels (22). One end of the second conveyor belt (17) is sleeved on the second drive wheel (22). The frame (15) is provided with a drive mechanism (23) that drives the first main shaft (18) and the second main shaft (21) to rotate.

6. A material variable-pitch conveying and cartoning production line according to claim 5, characterized in that, The drive mechanism (23) includes a motor (24) fixedly mounted on a frame (15), a first sprocket (25) for outputting power is mounted on the motor (24), a second sprocket (26) cooperating with the first sprocket (25) is fixedly mounted on the first main shaft (18) and the second main shaft (21), and a transmission chain (27) is sleeved on the first sprocket (25) and the second sprocket (26).

7. A material variable-pitch conveying and cartoning production line according to claim 6, characterized in that, The drive mechanism (23) also includes a tension wheel (28) for adjusting the tension of the transmission chain (27). The tension wheel (28) is located between the first sprocket (25) and the second sprocket (26) and is movably mounted on the frame (15).

8. A material variable-pitch conveying and cartoning production line according to claim 4, characterized in that, The first conveyor belt (16) and the second conveyor belt (17) are respectively provided with a number of stops (29) to push the medicine plate to move in the length direction of the second production line (2). The first main shaft (18) is respectively provided with three first drive wheels (19) and six second driven wheels (20). The first conveyor belt (16) and the two second conveyor belts (17) located in the same straight direction form a conveyor line for conveying medicine plates.

9. A material variable-pitch conveying and cartoning production line according to claim 8, characterized in that, First pallets (30) for supporting the medicine blister pack during transport are fixedly provided on both sides of the first conveyor belt (16). A protruding edge (31) is fixedly provided on the side of the first pallet (30) away from the first conveyor belt (16). In the same conveyor line, a second pallet (32) for supporting the medicine blister pack during transport is provided between two adjacent second conveyor belts (17). The second pallet (32) is located in the same straight direction as the first conveyor belt (16). A partition (33) connected to the protruding edge (31) is provided on the outer side of the two second conveyor belts (17). The partition (33) is located in the same straight direction as the corresponding protruding edge (31).

10. A cartoning process, applied to the material variable-pitch conveying cartoning production line according to any one of claims 1-9, characterized in that, Includes the following steps: S1: The material is processed by the blister pack machine (3) to form a blister pack and enters the first conveyor belt (5); S2: When the blister pack needs to be wrapped, the first robot (8) grabs the blister pack and puts it into the wrapping machine (7) for wrapping. After wrapping, the blister pack is grabbed by the fourth robot (11) and put into the second conveyor belt (6) and then into the cartoning machine (4) for cartoning. When the blister pack does not need to be wrapped, the second robot (9) grabs the blister pack and puts it into the second production line (2). The third robot (10) grabs the blister pack on the second production line (2) and puts it into the second conveyor belt (6) and then into the cartoning machine (4) for cartoning. S3: When the S2 Chinese medicine plate moves on the second production line (2), the pitch is changed through the pitch-changing connection component (14).