Automatic limiting mechanism of baling press

Abstract

This utility model discloses an automatic limiting mechanism for a packing machine, including a packing table and a packing frame, as well as a conveying mechanism, a first limiting rod, and a second limiting rod. The conveying mechanism passes under the packing frame to transport the packing boxes. The first and second limiting rods are respectively positioned on the rear and front sides of the packing frame along the conveying direction of the conveying mechanism. Simultaneously, a first photoelectric sensor is located on the rear side of the first limiting rod, a second photoelectric sensor is located between the first limiting rod and the packing frame, and a third photoelectric sensor is located between the packing frame and the second limiting rod. Thus, by using the first, second, and third photoelectric sensors to monitor the working status of the packing boxes in real time, and coordinating with the conveying mechanism, the first and second limiting rods, and the packing frame to form a linked control system, the packing boxes can be automatically transported and precisely packed via the conveying mechanism. Therefore, the improved structure has advantages such as high packing efficiency, low packing cost, reliable packing quality, and standardized packing requirements.

Description

Technical Field

[0001] This utility model relates to an automatic limiting mechanism, specifically an automatic limiting mechanism for a packaging machine. Background Technology

[0002] Currently, corrugated cardboard boxes are widely used in e-commerce, food, and electronics industries, serving as crucial packaging carriers in production, distribution, and consumption. To enhance their robustness, these boxes require pre-packaging before entering the distribution process. This packaging is typically accomplished by a packing machine. Existing packing machines mainly consist of a packing table and a packing rack mounted on it. These machines lack positioning mechanisms; workers move the boxes onto the table and manually place them under the rack according to their size for rapid packing. While the packing process is automated, manual handling and precise positioning of the boxes still require manual intervention. This not only impacts packing efficiency and increases labor costs but also leads to worker fatigue due to the repetitive processes of handling, placement, and manual positioning. Furthermore, manual positioning is susceptible to variations in worker skill, resulting in issues such as incomplete sealing and misaligned packing straps. Additionally, it cannot guarantee that the packing straps are in the correct position on all boxes, meaning these boxes often fail to meet standardized packing requirements, thus hindering subsequent automated sorting and warehousing management. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide an automatic limit mechanism for a packing machine that can improve packing efficiency, reduce packing costs, ensure packing quality, and achieve standardized packing requirements.

[0004] The technical problem of this utility model is solved by the following technical solution:

[0005] An automatic limiting mechanism for a packing machine includes a packing table and a packing frame mounted on the packing table. The packing table is also provided with a conveying mechanism, a first limiting rod, and a second limiting rod. The conveying mechanism passes under the packing frame and conveys the packing boxes. The first limiting rod is located on the rear side of the packing frame along the conveying direction of the conveying mechanism. The second limiting rod is located on the front side of the packing frame along the conveying direction of the conveying mechanism. A first photoelectric sensor is located on the rear side of the first limiting rod. A second photoelectric sensor is located between the first limiting rod and the packing frame. A third photoelectric sensor is located between the packing frame and the second limiting rod.

[0006] The first photoelectric sensor is used to detect the conveying status of the packing box. When it detects a packing box being conveyed forward by the conveying mechanism, it controls the second limit rod to descend to limit it. The third photoelectric sensor is used to detect the limiting status of the packing box. When it detects that the packing box is limited by the second limit rod, it controls the conveying mechanism to pause and triggers the packing frame to complete the first packing operation. Then, it controls the second limit rod to rise and resumes the forward conveying of the conveying mechanism. The second photoelectric sensor is used to detect the passing status of the packing box. When it detects that the forward-conveyed packing box has completely passed, it controls the first limit rod to descend and starts the conveying mechanism to convey the packing box backward until the packing box is limited by the first limit rod. Then, it controls the conveying mechanism to pause and triggers the packing frame to complete the second packing operation. Finally, it controls the first limit rod to rise and resumes the forward conveying of the conveying mechanism.

[0007] The packing rack is a portal frame that spans above the conveyor mechanism.

[0008] The packing rack has a U-shaped rear frame that spans across the conveying mechanism. The first limiting rod is installed on the rear frame, and the rear frame is equipped with a first driving cylinder that drives the first limiting rod to move up and down above the conveying mechanism.

[0009] The packaging rack has a U-shaped front frame that spans across the conveying mechanism. The second limiting rod is installed on the front frame, and the front frame is equipped with a second drive cylinder that drives the second limiting rod to move up and down above the conveying mechanism.

[0010] The first photoelectric sensor, the second photoelectric sensor, and the third photoelectric sensor are all located on the same side of the conveying mechanism.

[0011] The conveying mechanism includes multiple rollers arranged in parallel on the packing table; the packing box is supported on the multiple rollers and is conveyed forward or backward by the synchronous forward rolling of the multiple rollers.

[0012] The conveying mechanism is equipped with edge guards on both sides to guide and protect the packing boxes on the conveying mechanism.

[0013] The conveying mechanism is provided with rear sliding grooves extending along the conveying direction on both sides; the rear frame is slidably installed in the rear sliding grooves on both sides by two portal-shaped support legs, and the installation position is adjusted by sliding along the conveying direction.

[0014] The conveying mechanism is provided with front sliding grooves extending along the conveying direction on both sides; the front frame is slidably installed in the front sliding grooves on both sides by two portal-shaped support legs, and the installation position is adjusted by sliding along the conveying direction.

[0015] Compared with existing technologies, this utility model mainly adds a conveying mechanism, a first limiting rod, and a second limiting rod to the packing table. The conveying mechanism passes under the packing frame to transport the packing boxes. The first limiting rod is located on the rear side of the packing frame along the conveying direction of the conveying mechanism, and the second limiting rod is located on the front side of the packing frame along the conveying direction of the conveying mechanism. Simultaneously, a first photoelectric sensor is located on the rear side of the first limiting rod, a second photoelectric sensor is located between the first limiting rod and the packing frame, and a third photoelectric sensor is located between the packing frame and the second limiting rod. Thus, by using the first, second, and third photoelectric sensors to monitor the working status of the packing boxes in real time, and coordinating with the conveying mechanism, the first and second limiting rods, and the packing frame to form a linked control system, the packing boxes can be automatically transported and accurately packed via the conveying mechanism. Therefore, the improved structure has advantages such as high packing efficiency, low packing cost, reliable packing quality, and standardized packing requirements. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 for Figure 1 The left view.

[0018] Figure 3 for Figure 1 Top view.

[0019] Figure 4 for Figure 1 A three-dimensional image.

[0020] Figure 5 This is a schematic diagram of a structure in which the first photoelectric sensor detects the packing box being conveyed forward by the conveying mechanism and controls the second limit rod to descend to a limited position.

[0021] Figure 6 for Figure 5 Top view.

[0022] Figure 7 for Figure 5 A three-dimensional image.

[0023] Figure 8 This is a schematic diagram of the structure when the packing box is limited by the second limit rod.

[0024] Figure 9 for Figure 8 Top view.

[0025] Figure 10 for Figure 8 A three-dimensional image.

[0026] Figure 11This is a schematic diagram of a structure where the second photoelectric sensor detects that the packing box being conveyed forward by the conveying mechanism has completely passed through, and controls the first limit rod to descend to a limited position.

[0027] Figure 12 for Figure 11 Top view.

[0028] Figure 13 for Figure 11 A three-dimensional image.

[0029] Figure 14 This is a schematic diagram of the structure when the second photoelectric sensor controls the conveying mechanism to transport the packing box backward until the packing box is limited by the first limit rod.

[0030] Figure 15 for Figure 14 Top view.

[0031] Figure 16 for Figure 14 A three-dimensional image.

[0032] Figure 17 This is a schematic diagram showing the packing box being completely conveyed out by the conveyor mechanism.

[0033] Figure 18 for Figure 17 Top view.

[0034] Figure 19 for Figure 17 A three-dimensional image. Detailed Implementation

[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] like Figures 1-19 As shown, 1. Packing table, 11. Anti-vibration feet, 12. Rear slide rail, 13. Front slide rail, 14. Edge guard strip, 2. Packing rack, 3. Rear frame, 31. First limit rod, 32. First drive cylinder, 4. Front frame, 41. Second limit rod, 42. Second drive cylinder, 5. First photoelectric sensor, 6. Second photoelectric sensor, 7. Third photoelectric sensor, 8. Conveying mechanism, 81. Roller, 9. Packing box.

[0037] An automatic limit mechanism for a packing machine, such as Figures 1-4 As shown, this device is mainly used for the automated conveying and precise packaging of corrugated cardboard boxes. Its structure mainly includes a packing table 1 and a packing frame 2 mounted on the packing table. It also includes a conveying mechanism 8, a rear frame 3 mounted on the rear side of the packing frame, and a front frame 4 mounted on the front side of the packing frame. In this embodiment, the conveying direction of the conveying mechanism is taken as the front-to-back direction, i.e., as shown... Figure 1 , Figure 3 , Figure 4The left side of the view shown is the rear side, and the right side is the front side.

[0038] The packing table 1 is rectangular in shape and is placed stably on the ground by the anti-vibration feet 11 at the four corners of the bottom surface.

[0039] The conveying mechanism 8 passes under the packing frame 2 and is used to convey the packing box 9. The packing frame 2 is a gate-shaped frame that spans above the conveying mechanism 8. Usually, when the packing box 9 is located under the packing frame 2, the packing frame can provide packing straps for quick packing.

[0040] The conveying mechanism 8 includes multiple rollers 81 arranged in parallel on the packing table 1. That is, the axis lines of the multiple rollers are parallel and horizontally arranged on the top surface of the packing table 1. The packing box 9 is supported on the multiple rollers and is conveyed forward or backward by the synchronous forward rolling of the multiple rollers 81.

[0041] The conveying mechanism 8 is provided with edge guards 14 on both sides, which are mainly used to guide and protect the packing boxes 9 on the conveying mechanism 8.

[0042] The rear frame 3 is arranged in a U-shape and spans above the conveying mechanism 8. A first limiting rod 31 and a first driving cylinder 32 are installed on the rear frame. The first limiting rod is a horizontal rod with its length direction parallel to the axis of the roller 81. That is, the first limiting rod 31 is horizontally placed above the conveying mechanism 8, which is perpendicular to the conveying direction of the conveying mechanism. It is driven by the first driving cylinder 32 to move up and down above the conveying mechanism 8.

[0043] The front frame 4 is shaped like a gate and spans across the conveying mechanism 8. The front frame is equipped with a second limiting rod 41 and a second driving cylinder 42. The second limiting rod is also a horizontal rod with its length direction parallel to the axis of the roller 81. That is, the second limiting rod 41 is horizontally placed above the conveying mechanism 8, which is perpendicular to the conveying direction of the conveying mechanism. It is driven by the second driving cylinder 42 to move up and down above the conveying mechanism 8.

[0044] The conveying mechanism 8 is provided with rear sliding grooves 12 extending along the conveying direction on both sides; the rear frame 3 is slidably installed in the rear sliding grooves 12 on both sides by two portal-shaped support legs, and its installation position is adjusted by sliding along the conveying direction.

[0045] The conveying mechanism 8 is provided with front slide grooves 13 extending along the conveying direction on both sides; the front frame 4 is slidably installed in the front slide grooves 13 on both sides by two portal-shaped support legs, and the installation position is adjusted by sliding along the conveying direction.

[0046] In this way, the adjustable design of the rear frame 3 and the front frame 4 can accommodate packing boxes 9 of different lengths and sizes, thereby expanding the scope of use of the packing boxes.

[0047] A first photoelectric sensor 5 is provided on the rear side of the first limiting rod 31, a second photoelectric sensor 6 is provided between the first limiting rod 31 and the packing frame 2, and a third photoelectric sensor 7 is provided between the packing frame 2 and the second limiting rod 41. The first photoelectric sensor 5, the second photoelectric sensor 6 and the third photoelectric sensor 7 are all located on the same side of the conveying mechanism 8 and simultaneously face the conveying mechanism to form a detection. The first photoelectric sensor 5 is used to detect the conveying status of the packing box, the second photoelectric sensor 6 is used to detect the passing status of the packing box, and the third photoelectric sensor 7 is used to detect the limiting status of the packing box.

[0048] The specific work process is as follows: Figures 5-19 As shown, when the first photoelectric sensor 5 detects the packing box 9 being conveyed forward by the conveying mechanism 8, it controls the second limit rod 41 to descend. At this time, the conveying mechanism 8 continues to convey the packing box forward until the packing box touches the descending second limit rod 41 and is limited. If the original position of the packing box is not correct, the front end of the packing box after hitting the second limit rod can also adjust its position so that the front end of the packing box is flat against the second limit rod 41. Then, after the third photoelectric sensor 7 detects that the packing box 9 is limited by the second limit rod 41, it controls the conveying mechanism 8 to pause and triggers the packing frame 2 to complete the first packing operation. After the first packing operation is completed, it controls the second limit rod 41 to rise and reset. Resume forward conveying of the conveyor mechanism 8; then, when the second photoelectric sensor 6 detects that the forward conveyed packing box 9 has completely passed, that is, after the rear end of the packing box has completely passed the second photoelectric sensor, control the first limit rod 31 to descend and pause the conveyor mechanism 8, then restart the conveyor mechanism to convey the packing box 9 backward until the rear end of the packing box is limited by the first limit rod 31, then control the conveyor mechanism 8 to pause and trigger the packing frame 2 to complete the second packing operation; after the second packing operation is completed, control the first limit rod 31 to rise and reset and resume forward conveying of the conveyor mechanism 8; finally, the packing box 9 that has completed two packing operations can be completely conveyed out by the conveyor mechanism for the next step of palletizing or other processes.

[0049] This invention only requires real-time detection of the working status of the packing box 9 by the first photoelectric sensor 5, the second photoelectric sensor 6, and the third photoelectric sensor 7, and then coordinated with the conveying mechanism 8, the first limit rod 31, the second limit rod 41, and the packing frame 2 to form a linkage control, so that the packing box 9 can be automatically conveyed and accurately packed by the conveying mechanism 8. In particular, this packing machine can also be connected to a conveyor belt to realize unmanned production. Therefore, the improved structure has the advantages of high packing efficiency, low packing cost, reliable packing quality, and standardization of packing requirements, and greatly facilitates subsequent automated sorting or warehouse management.

[0050] The basic principles and main features of this utility model have been described above. Those skilled in the art should understand that this utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic limiting mechanism for a packing machine, comprising a packing table (1) and a packing rack (2) mounted on the packing table, characterized in that: The packaging platform is also equipped with a conveying mechanism (8), a first limiting rod (31), and a second limiting rod (41). The conveying mechanism (8) passes under the packing rack (2) and conveys the packing box (9); The first limiting rod (31) is arranged on the rear side of the packing frame (2) along the conveying direction of the conveying mechanism (8); The second limiting rod (41) is arranged on the front side of the packing frame (2) along the conveying direction of the conveying mechanism (8); A first photoelectric sensor (5) is provided on the rear side of the first limiting rod (31), a second photoelectric sensor (6) is provided between the first limiting rod (31) and the packing frame (2), and a third photoelectric sensor (7) is provided between the packing frame (2) and the second limiting rod (41).

2. The automatic limiting mechanism for a packaging machine according to claim 1, characterized in that: The first photoelectric sensor (5) is used to detect the conveying status of the packing box (9). When the packing box (9) is detected being conveyed forward by the conveying mechanism (8), the second limit rod (41) is controlled to descend to limit the movement. The third photoelectric sensor (7) is used to detect the limiting state of the packing box (9). When the packing box is detected to be limited by the second limiting rod, the conveying mechanism (8) is controlled to pause and the packing frame (2) is triggered to complete the first packing operation. Then the second limiting rod (41) is controlled to rise and the forward conveying of the conveying mechanism (8) is resumed. The second photoelectric sensor (6) is used to detect the passage status of the packing box (9). When it is detected that the packing box being conveyed forward has completely passed, the first limit rod (31) is controlled to descend and the conveying mechanism (8) is started to convey the packing box backward until the packing box (9) is limited by the first limit rod (31). Then the conveying mechanism (8) is controlled to pause and the packing rack (2) is triggered to complete the second packing operation. Finally, the first limit rod (31) is controlled to rise and the forward conveying of the conveying mechanism (8) is resumed.

3. The automatic limiting mechanism for a packaging machine according to claim 1, characterized in that: The packing rack (2) is a portal frame that spans above the conveying mechanism (8).

4. The automatic limiting mechanism for a packaging machine according to claim 1, characterized in that: The packing rack (2) has a gate-shaped rear frame (3) on its rear side, which spans across the conveying mechanism (8); the first limiting rod (31) is installed on the rear frame (3), and the rear frame is equipped with a first driving cylinder (32), which drives the first limiting rod (31) to move up and down above the conveying mechanism (8).

5. The automatic limiting mechanism for a packaging machine according to claim 1, characterized in that: The packaging rack (2) has a front frame (4) in the shape of a door, which spans across the conveying mechanism (8); the second limiting rod (41) is installed on the front frame (4), and the front frame is equipped with a second driving cylinder (42), which drives the second limiting rod (41) to move up and down above the conveying mechanism (8).

6. The automatic limiting mechanism for a packing machine according to claim 1, characterized in that: The first photoelectric sensor (5), the second photoelectric sensor (6) and the third photoelectric sensor (7) are all located on the same side of the conveying mechanism.

7. The automatic limiting mechanism for a packaging machine according to claim 1, characterized in that: The conveying mechanism (8) includes multiple rollers (81) arranged in parallel on the packing table (1); the packing box (9) is supported on the multiple rollers and is conveyed forward or backward by the synchronous forward rolling of the multiple rollers.

8. The automatic limiting mechanism for a packaging machine according to claim 1, characterized in that: The conveying mechanism (8) is provided with edge guards (14) on both sides, which guide and protect the packing boxes (9) on the conveying mechanism.

9. The automatic limiting mechanism for a packing machine according to claim 4, characterized in that: The conveying mechanism (8) has rear slide grooves (12) extending along the conveying direction on both sides; the rear frame (3) is slidably installed in the rear slide grooves (12) on both sides by two portal-shaped support legs, and the installation position is adjusted by sliding along the conveying direction.

10. The automatic limiting mechanism for a packaging machine according to claim 5, characterized in that: The conveying mechanism (8) is provided with front slide grooves (13) extending along the conveying direction on both sides; the front frame (4) is slidably installed in the front slide grooves (13) on both sides by two portal-shaped support legs, and the installation position is adjusted by sliding along the conveying direction.

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