Automatic collating lifting device for a cross-cut machine

Abstract

This utility model relates to a more compact automatic sorting and lifting device for a cross-cutting machine. This automatic sorting and lifting device includes a frame, a lifting platform, and a lifting power source. Its key feature is that: the frame is equipped with two fixed sprocket sets (front and rear); the frame in front of the fixed sprocket sets has two transition sprocket sets (front and rear), each including a transition sprocket; below the rear fixed sprocket set is a vertically extending first guide rail, on which a lifting seat slides; the lifting seat has movable sprocket sets connected to its front and rear ends; and a chain fixing seat is mounted on the frame, connecting to the ends of two chains. This automatic sorting and lifting device for a cross-cutting machine only requires the movable sprocket sets to move the lifting platform by one-quarter of its lifting radius to complete the entire lifting process.

Description

Technical Field

[0001] This utility model relates to a cross-cutting machine, specifically to a lifting device for the cross-cutting machine. Background Technology

[0002] A cross-cutting machine is a device that cuts rolls of paper or film into individual sheets. After being cut, the paper or film is screwed onto a collecting lifting platform. As the sheets are stacked, the platform gradually descends. Current technology uses a motor-driven chain to move the platform up and down. The chain is wound around a sprocket and a counterweight. Since the chain length is constant, the counterweight descends the same amount as the platform rises. In this case, if the platform's vertical movement is large, the counterweight's vertical movement will also be large. The counterweight's vertical movement also requires space; the larger the vertical movement, the more space it occupies, thus affecting the machine's internal structure and increasing its overall size. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, this utility model innovatively provides an automatic sorting and lifting device for a cross-cutting machine with a more compact structure.

[0004] This automatic sorting and lifting device for a cross-cutting machine includes a frame, a lifting platform, and a lifting power source. Its features include: two fixed sprocket sets (front and rear) mounted on the frame, each set comprising two fixed sprockets arranged side-by-side; two transition sprocket sets (front and rear) on the frame in front of the fixed sprocket sets, each set comprising a transition sprocket, the rear set including two transition sprockets arranged side-by-side, and the front set including one transition sprocket; a first guide rail extending vertically is located below the rear fixed sprocket set, mounted on the frame, and a sliding mechanism on the first guide rail... The system includes a lifting platform with movable sprocket sets connected to both its front and rear ends. Each movable sprocket set includes two movable sprockets arranged side by side. A chain fixing seat is mounted on the frame and connected to the ends of two chains. The two chains are wound sequentially around the two rear movable sprockets, the two rear fixed sprockets, the two front movable sprockets, the two front fixed sprockets, and the two rear transition sprockets. One chain is connected to one end of the lower lifting platform, and the other chain, after passing over a front transition sprocket, is connected to the other end of the lower lifting platform. The lifting power source is connected to one of the fixed sprocket sets for transmission.

[0005] A guide sprocket assembly is provided on the lower front frame of the fixed sprocket assembly. The guide sprocket assembly is mounted on the frame and includes two guide sprockets arranged side by side. After the two chains pass around the two fixed sprockets in front, they first wrap around the two guide sprockets and then around the two transition sprockets in the back.

[0006] The frame is equipped with a vertically extending second guide rail, and the lifting platform is slidably mounted on the second guide rail via a slide block.

[0007] The lifting power source is a motor, and a first transmission sprocket is installed on the output shaft of the motor. A second transmission sprocket is installed on one of the fixed sprocket groups, and a transmission chain connects the first transmission sprocket and the second transmission sprocket.

[0008] The frame is equipped with symmetrical sprocket sets and chains on both sides. Four chains are connected to the four corners of the lifting platform. A pair of symmetrical fixed sprocket sets are connected by a rotating shaft, and the second transmission sprocket is connected to the rotating shaft.

[0009] According to the present invention, an automatic sorting and lifting device for a cross-cutting machine is provided. By setting two fixed sprocket groups and two movable sprocket groups, and pulling the lifting platform with two chains, the lifting platform can complete the entire lifting process by moving only one-quarter of the lifting range of the movable sprocket group. Attached Figure Description

[0010] Figure 1 The three-dimensional representation of this utility model Figure 1 ; Figure 2 The three-dimensional representation of this utility model Figure 2 ; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram showing the connection between the chain and the sprocket on one side. Detailed Implementation

[0011] like Figure 1 As shown, this automatic sorting and lifting device for a cross-cutting machine includes a frame 1, a lifting platform 2, and a lifting power source 3. Driven by the lifting power source 3, the lifting platform 2 is lifted and lowered, thereby causing the stacked papers to gradually descend.

[0012] In order for the transmission lifting platform 2 to achieve lifting, such as Figure 2 and Figure 3 As shown, two fixed sprocket sets 5 are installed on the frame 1, one at the front and one at the rear. Figure 4As shown, each fixed sprocket group 5 includes two fixed sprockets 51 arranged side by side (each fixed sprocket 51 is connected to a chain 4); two transition sprocket groups 8 are provided on the front frame of the fixed sprocket group 5, and the lifting platform 2 is located below the transition sprocket groups 8. Each transition sprocket group 8 includes a transition sprocket 81. The rear transition sprocket group 8 includes two transition sprockets 81 arranged side by side (each transition sprocket 81 is connected to a chain 4), and the front transition sprocket group 8 includes one transition sprocket 81; a first guide rail 70 extending vertically is provided below the rear fixed sprocket group 5. The first guide rail 70 is mounted on the frame 1, and a lifting seat is slidably mounted on the first guide rail 70. 7. Both ends of the lifting platform 7 are connected to movable sprocket sets 6. Each movable sprocket set 6 includes two movable sprockets 61 arranged side by side. A chain fixing seat 10 is installed on the frame 1. The chain fixing seat 10 is connected to the ends of two chains 4. The two chains 4 are wound around the two rear movable sprockets 61, the two rear fixed sprockets 51, the two front movable sprockets 61, the two front fixed sprockets 51, and the two rear transition sprockets 81 in sequence. One chain 4 is connected to one end of the lower lifting platform 2, and the other chain 4 is wound around the front transition sprocket 81 and connected to the other end of the lower lifting platform 2. The lifting power source 3 is connected to one of the fixed sprocket sets 5 for transmission.

[0013] The working principle of the automatic sorting and lifting device of the cross-cutting machine is as follows: As the paper is continuously stacked, the lifting power source 3 drives the lifting platform 2 to gradually descend. The lifting power source 3 first drives one of the fixed sprocket groups 5 to rotate, so that the two fixed sprockets 51 drive the two chains 4 to move. The movement of the two chains 4 drives the two movable sprocket groups 6 to move upward synchronously. In this way, the chains 4 drive the lifting platform 2 to gradually move downward. Since the two movable sprocket groups 6 are movable pulleys, the vertical movement of the movable sprocket groups 6 is one-quarter of the movement of the lifting platform 2. Thus, the space required for the movable sprocket groups 6 is very small, and it will not occupy a large space of the whole machine, so that the whole machine is more compact and the overall size can be made smaller.

[0014] To facilitate a smoother transition of chain 4 from the fixed sprocket set 5 to the transition sprocket set 8, a guide sprocket set 9 is provided at the lower front of the fixed sprocket set 5, such as... Figure 3 As shown, the guide sprocket assembly 9 is mounted on the frame 1. The guide sprocket assembly 9 also includes two guide sprockets 91 arranged side by side. After the two chains 4 pass around the two fixed sprockets 51 in front, they first wrap around the two guide sprockets 91 and then around the two transition sprockets 81 in the back.

[0015] To make the lifting platform 2 rise and fall more smoothly, such as Figure 3As shown, a vertically extending second guide rail 21 is installed on the frame 1, and the lifting platform 2 is slidably mounted on the second guide rail 21 via a slide block 20. The lifting platform 2 moves up and down on the second guide rail 21 via the slide block 20, making the movement more stable.

[0016] like Figure 1 As shown, the lifting power source 3 is a motor. A first transmission sprocket 30 is mounted on the output shaft of the motor, and a second transmission sprocket 31 is mounted on one of the fixed sprocket groups 5. A transmission chain 32 connects the first transmission sprocket 30 and the second transmission sprocket 31. Driven by the motor, the transmission chain 32 drives one of the fixed sprocket groups 5 to rotate, thus moving the chain 4.

[0017] like Figure 4 As shown, symmetrical sprocket sets and chains 4 are installed on both sides of the frame 1. The four chains 4 are connected to the four corners of the lifting platform 2. A pair of symmetrical fixed sprocket sets 5 are connected by a rotating shaft 11, and a second transmission sprocket 31 is connected to the rotating shaft 11. When one of the fixed sprocket sets 5 on one side is driven, it drives the fixed sprocket set 5 on the other side to rotate through the rotating shaft 11. In this way, the four chains 4 on the left and right sides move synchronously, thereby pulling the lifting platform 2 to rise and fall smoothly.

Claims

1. An automatic arranging and lifting device for a cross-cut machine, comprising a frame (1), a lifting platform (2) and a lifting power source (3), characterized in that: The frame (1) is equipped with two fixed sprocket groups (5), each of which includes two fixed sprockets (51) arranged side by side. Two transition sprocket groups (8) are provided on the frame in front of the fixed sprocket groups (5), each of which includes a transition sprocket (81). The rear transition sprocket group (8) includes two transition sprockets (81) arranged side by side, while the front transition sprocket group (8) includes one transition sprocket (81). A first guide rail (70) extending vertically is provided below the rear fixed sprocket group (5). The first guide rail (70) is mounted on the frame (1), and a lifting seat (7) is slidably mounted on the first guide rail (70). Movable chains are connected to both ends of the lifting seat (7). The wheel assembly (6) includes two movable sprockets (61) arranged side by side. A chain fixing seat (10) is installed on the frame (1). The chain fixing seat (10) is connected to the ends of two chains (4). The two chains (4) are wound around the two rear movable sprockets (61), the two rear fixed sprockets (51), the two front movable sprockets (61), the two front fixed sprockets (51), and the two rear transition sprockets (81) in sequence. One chain (4) is connected to one end of the lower lifting platform (2), and the other chain (4) is wound around the front transition sprocket (81) and connected to the other end of the lower lifting platform (2). The lifting power source (3) is connected to one of the fixed sprocket assemblies (5) for transmission.

2. An automatic collating lift for a cross-cut machine according to claim 1, characterized in that: A guide sprocket group (9) is provided on the lower front frame of the front fixed sprocket group (5). The guide sprocket group (9) is installed on the frame (1). The guide sprocket group (9) includes two guide sprockets (91) arranged side by side. After the two chains (4) pass around the two front fixed sprockets (51), they first wrap around the two guide sprockets (91) and then wrap around the two rear transition sprockets (81).

3. The automatic sorting and lifting device for a cross-cutting machine according to claim 1, characterized in that: The frame (1) is equipped with a vertically extending second guide rail (21), and the lifting platform (2) is slidably mounted on the second guide rail (21) via a slide block (20).

4. The automatic sorting and lifting device for a cross-cutting machine according to claim 1, characterized in that: The lifting power source (3) is a motor. A first transmission sprocket (30) is installed on the output shaft of the motor. A second transmission sprocket (31) is installed on one of the fixed sprocket groups (5). A transmission chain (32) connects the first transmission sprocket (30) and the second transmission sprocket (31).

5. The automatic sorting and lifting device for a cross-cutting machine according to claim 4, characterized in that: The frame (1) is equipped with symmetrical sprocket sets and chains (4) on both sides. The four chains (4) are connected to the four corners of the lifting platform (2). A pair of symmetrical fixed sprocket sets (5) are connected by a rotating shaft (11). The second transmission sprocket (31) is connected to the rotating shaft (11).

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