Automatic paper head falling device of paper cutter

Abstract

The utility model relates to the technical field of paper cutting machines, in particular to an automatic paper head falling device of a paper cutting machine, which comprises a base, a material pushing assembly, a first elastic piece, a transmission assembly and a locking assembly. The base is provided with a discharging groove, the pushing assembly is matched with a pushing plate through a sliding rod to transversely move to push out a paper head, a first elastic piece provides pre-pushing force, the transmission assembly achieves clamping and transverse moving of the sliding rod through a rotating part, a sliding part and a guiding part, and the locking assembly is clamped with the pushing plate through a locking block to limit the position. Through combination of elastic pre-pushing and threaded pushing, the device adapts to paper heads of different sizes, accumulation and deviation are prevented, the stability and efficiency are improved, the manual cleaning frequency is reduced, operation is easy, and the labor intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of paper cutter automation technology, specifically an automatic paper tip dropping device for paper cutters. Background Technology

[0002] In the printing, packaging, and paper product processing industries, paper cutters are crucial equipment widely used for cutting and processing paper. Their efficient and precise operation plays a key role in production efficiency and product quality. However, in actual use, the paper scraps (small pieces of paper remaining after cutting) typically require manual cleaning or simple mechanical processing. This not only increases the workload of operators but can also lead to reduced production efficiency, especially in highly continuous and automated production lines where manual intervention can disrupt the production process and affect overall efficiency. Furthermore, existing paper scrap removal devices generally suffer from complex structures, insufficient reliability, and poor adaptability, making it difficult to meet the needs of handling paper scraps after cutting different paper sizes. Therefore, developing a device that can automatically complete the paper scrap cleaning process to improve the automation level and operating efficiency of paper cutters while reducing manual intervention has become an urgent technical challenge. Utility Model Content

[0003] The purpose of this invention is to provide an automatic paper tip dropping device for paper cutters to address the shortcomings of existing technologies. To achieve the above objectives, this utility model provides the following technical solution: an automatic paper tip dropping device for a paper cutter, comprising: a base with a material dropping groove; a pushing assembly including a slide rod and a push plate located in the material dropping groove, the slide rod being laterally slidably connected to the base, and the push plate being fixedly connected to one end of the slide rod; a first elastic element, the process of which restores its elastic deformation drives the pushing assembly to move laterally relative to the base to push the paper tip out of the material dropping groove; a transmission assembly including a guide part fixedly connected to the base and located on the lateral sliding path of the slide rod, a sliding part laterally slidably connected to the base, and a rotating part threadedly connected to the base, the rotating part and the sliding part being rotatably connected, the guide part including a connected horizontal sleeve and a conical sleeve, and a plurality of spring pieces arranged in a circumferential array being fixedly connected to the sliding part; during the threaded rotation of the rotating part relative to the base, the sliding part is pushed to move laterally so that each spring piece abuts against the inner conical surface of the conical sleeve, so that the ends of each spring piece close together to clamp the slide rod, and then the sliding part moves laterally within the horizontal sleeve to drive the pushing assembly to move laterally to push out the paper tip. It also includes a locking assembly, comprising: a locking block, which is vertically slidably connected to the base; and a second elastic element, whose elastic deformation recovery process drives the locking block to slide vertically to engage with the push plate. Each of the spring pieces has an arc-shaped protrusion fixedly connected to the side that abuts and clamps the slide rod, and an anti-slip soft rubber pad is fixedly connected to the protrusion. The rotating part includes a vertical section threaded to the base and a rotating sleeve fixedly connected to the vertical section, the rotating sleeve being internally threaded to an operating rod. A limiting plate is fixedly connected to the side of the base near the material discharge chute. When the pushing assembly pushes the paper head, a sealed channel is formed between the limiting plate, the base, and the push plate to limit the paper head from deviating from the material discharge chute. The first elastic element is an elastic telescopic rod located inside the operating rod cavity. One end of the elastic telescopic rod is fixedly connected to the slide rod, and the other end is fixedly connected to the bottom end of the cavity. A wedge block is fixedly connected to one side of the locking block, the inclined surface of the wedge block facing outwards. In the above technical solution, the automatic paper tip dropping device for the paper cutter provided by this utility model releases the elastic force of the first elastic element after the paper tip falls into the feeding trough, so that the slide rod and push plate in the pushing assembly move laterally, and the push plate can abut against and push the paper tip, thus completing the pre-pushing effect of the paper tip, and can adapt to paper tips of different sizes; then, the drive rotating part rotates relative to the base thread, and when the rotating part rotates one revolution, the rotating part will push the sliding part laterally so that each spring slides along the inner conical surface of the conical sleeve until the end of each spring abuts against and clamps the slide rod. Then, when the rotating part rotates a second revolution, the rotating part will continue to push the sliding part, and the laterally sliding sliding part will simultaneously drive the slide rod clamped by each spring to move laterally, so that the push plate can further push out the paper tip.In summary, this device not only drives the pusher plate to pre-eject paper heads of different sizes, effectively preventing paper heads from accumulating in the feed chute and improving the overall practicality of the device, but also, because the rotating part and the base are connected by threads, the threaded rotation of the rotating part not only provides a threaded pushing effect between the base and the paper head, ensuring stable paper head ejection, but also increases the stability between the entire device and the paper head, preventing jamming or deviation during ejection, thus improving the overall efficiency of the device and reducing the frequency of paper head cleaning by workers. Furthermore, the entire operation reduces the number of thread turns between the rotating part and the base, simplifies operation, and significantly reduces the workload of workers. Attached Figure Description

[0004] Figure 1 This is a schematic diagram of the overall structure of the automatic paper tip dropping device for the paper cutter of this utility model;

[0005] Figure 2 This is a cross-sectional view of the automatic paper tip dropping device for the paper cutter of this utility model, showing the detailed structure of the transmission assembly;

[0006] Figure 3 This is a schematic diagram of the pushing component and the first elastic element of the automatic paper tip dropping device for the paper cutter of this utility model;

[0007] Figure 4 This is a partial enlarged view of point A of the automatic paper tip dropping device for the paper cutter of this utility model;

[0008] Figure 5 This is a partial enlarged view of section B of the automatic paper tip dropping device for the paper cutter of this utility model.

[0009] The attached figures are labeled as follows: 1. Base; 2. Material chute; 3. Slide rod; 4. Push plate; 5. First elastic element; 6. Guide part; 61. Horizontal sleeve; 62. Conical sleeve; 7. Sliding part; 71. Spring piece; 72. Arc-shaped protrusion; 73. Anti-slip soft rubber pad; 8. Rotating part; 81. Vertical section; 82. Rotating sleeve rod; 83. Operating rod; 9. Locking block; 10. Second elastic element; 11. Wedge block; 12. Limiting plate. Detailed Implementation

[0010] This utility model provides an automatic paper tip dropping device for a paper cutter, the structure and operating principle of which are described in the attached document. Figure 1 To be continued Figure 4 A detailed demonstration has been provided. The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Figure 1As shown, the device includes a base 1 with a material drop trough 2 for receiving paper scraps dropped from the paper cutter. The pushing assembly consists of a slide rod 3 and a push plate 4. The slide rod 3 is laterally slidably connected to the base 1, while the push plate 4 is fixedly connected to one end of the slide rod 3 and located within the material drop trough 2. A first elastic element 5 is disposed within the inner cavity of the operating rod 83, with one end fixedly connected to the slide rod 3 and the other end fixedly connected to the bottom of the inner cavity. When the first elastic element 5 recovers its elastic deformation, it can drive the slide rod 3 and the push plate 4 to move laterally, thereby pushing the paper scraps out of the material drop trough 2.

[0011] The transmission assembly is one of the core components of this device, and its structure is as follows: Figure 2 As shown, the slide includes a guide section 6, a sliding section 7, and a rotating section 8. The guide section 6 is fixedly connected to the base 1 and located on the lateral sliding path of the slide rod 3. The guide section 6 consists of a horizontal sleeve 61 and a conical sleeve 62. The sliding section 7 is laterally slidably connected to the base 1, and a plurality of spring pieces 71 arranged in a circumferential array are fixedly connected thereto. The rotating section 8 is threadedly connected to the base 1 and rotatably connected to the sliding section 7. The rotating section 8 includes a vertical section 81 and a rotating sleeve 82, and an operating rod 83 is threadedly connected to the rotating sleeve 82. When the operating rod 83 is driven to rotate, the rotating section 8 rotates threadedly relative to the base 1, thereby pushing the sliding section 7 to move laterally. During the lateral movement, the spring pieces 71 on the sliding section 7 slide along the inner conical surface of the conical sleeve 62, causing the ends of each spring piece 71 to gradually close and clamp the slide rod 3. Subsequently, as the rotating part 8 continues to rotate threadedly, the sliding part 7 moves further laterally within the horizontal sleeve 61, causing the clamped slide rod 3 to move synchronously, thereby pushing the push plate 4 further out of the paper head.

[0012] To ensure the stability of the paper roll during ejection, this device also includes a locking assembly, the structure of which is as follows: Figure 4 As shown, the locking assembly consists of a locking block 9 and a second elastic element 10. The locking block 9 is vertically slidably connected to the base 1. The restoring elastic deformation of the second elastic element 10 drives the locking block 9 to slide vertically and engage with the push plate 4. This design effectively prevents the push plate 4 from moving accidentally when not in operation, thereby improving the safety and reliability of the entire device. In addition, a wedge block 11 is fixedly connected to one side of the locking block 9. The inclined surface of the wedge block 11 is arranged outward, which facilitates quick release of the engagement state by external force when unlocking is required.

[0013] To enhance the friction between the spring 71 and the slide bar 3 and prevent slippage of the slide bar 3 during clamping, an arc-shaped protrusion 72 is fixedly connected to the side of each spring 71 that abuts against the slide bar 3. An anti-slip soft rubber pad 73 is also fixedly connected to the arc-shaped protrusion 72. This design not only improves the clamping effect but also reduces wear on the surface of the slide bar 3, extending the service life of the device. Simultaneously, the limiting plate 12 is fixedly connected to the side of the base 1 near the feed chute 2. When the pusher assembly pushes the paper head, a sealed channel is formed between the limiting plate 12, the base 1, and the pusher plate 4, restricting the paper head from deviating from the feed chute 2, thereby ensuring that the paper head can be smoothly pushed out along the predetermined path.

[0014] The working principle of this device is as follows: When the paper head falls into the feed chute 2 after being cut by the paper cutter, the first elastic element 5 releases its stored elastic potential energy, driving the slide rod 3 and push plate 4 to move laterally. The push plate 4 abuts against and pushes the paper head, completing the pre-ejection effect of the paper head. At this time, the design of the first elastic element 5 allows it to adapt to paper heads of different sizes, thereby improving the versatility of the device. Subsequently, the operator drives the rotating part 8 to rotate relative to the base 1 by rotating the operating lever 83. When the rotating part 8 rotates one revolution, its vertical section 81 pushes the sliding part 7 to move laterally. The spring pieces 71 on the sliding part 7 slide along the inner conical surface of the conical sleeve 62 until the ends of each spring piece 71 close together and clamp the slide rod 3. Then, when the rotating part 8 continues to rotate a second revolution, the sliding part 7 moves laterally further within the horizontal sleeve 61, driving the clamped slide rod 3 to move synchronously, thereby causing the push plate 4 to further push out the paper head. During this process, the rotating part 8 and the base 1 are connected by a thread, and the threaded push can ensure that the paper head is pushed out stably, avoiding jamming or deviation.

[0015] In practical applications, this device offers a simple and efficient operating procedure. First, the operator simply places the paper into the feed chute 2, and the first elastic element 5 automatically releases its elastic force to complete the pre-ejection action. Second, rotating the operating lever 83 drives the transmission assembly to complete the subsequent paper ejection. The entire operation reduces the number of thread turns between the rotating part 8 and the base 1, not only reducing the operator's workload but also significantly improving work efficiency. Furthermore, the locking component design further enhances the device's safety, ensuring that the push plate 4 will not move accidentally due to external interference when not in operation.

[0016] In summary, the automatic paper tip ejection device for paper cutters provided by this utility model achieves efficient and stable paper tip ejection through ingenious structural design and transmission mechanism. Its unique transmission and locking component design not only improves the practicality and reliability of the device but also significantly reduces the labor intensity of operators, providing strong support for the automated operation of paper cutters.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic paper tip dropping device for a paper cutter, characterized in that, include: A base (1) with a material discharge groove (2) on it; a pushing assembly including a slide rod (3) and a push plate (4) located in the material discharge groove (2), the slide rod (3) being laterally slidably connected to the base (1), and the push plate (4) being fixedly connected to one end of the slide rod (3); a first elastic element (5), whose process of restoring elastic deformation drives the pushing assembly to move laterally relative to the base (1) to push the paper head out of the material discharge groove (2); a transmission assembly including a guide part (6) fixedly connected to the base (1) and located on the lateral sliding path of the slide rod (3), a sliding part (7) laterally slidably connected to the base (1), and a threaded connection to the base (1). The rotating part (8) on the base (1) is rotatably connected to the sliding part (7). The guide part (6) includes a horizontal sleeve (61) and a conical sleeve (62) connected together. Multiple spring pieces (71) are fixedly connected to the sliding part (7) in a circumferential array. During the threaded rotation of the rotating part (8) relative to the base (1), the sliding part (7) is pushed to move laterally so that each spring piece (71) abuts against the inner conical surface of the conical sleeve (62), so that the ends of each spring piece (71) close together and clamp the slide rod (3). Then the sliding part (7) moves laterally in the horizontal sleeve (61) to drive the pusher assembly to move laterally and push out the paper head.

2. The automatic paper tip dropping device for a paper cutter according to claim 1, characterized in that, It also includes a locking assembly, which includes a locking block (9) that is vertically slidably connected to the base (1); The second elastic element (10), in the process of restoring its elastic deformation, is used to drive the locking block (9) to slide vertically to engage with the push plate (4).

3. The automatic paper tip dropping device for a paper cutter according to claim 1, characterized in that, Each of the spring pieces (71) has an arc-shaped protrusion (72) fixedly connected to the side of the slide bar (3) that abuts and clamps it, and an anti-slip soft rubber pad (73) is fixedly connected to the arc-shaped protrusion (72).

4. The automatic paper tip dropping device for a paper cutter according to claim 1, characterized in that, The rotating part (8) includes a vertical section (81) that is threadedly engaged with the base (1) and a rotating sleeve (82) that is fixedly connected to the vertical section (81). The rotating sleeve (82) is internally threaded with an operating rod (83).

5. The automatic paper tip dropping device for a paper cutter according to claim 1, characterized in that, A limiting plate (12) is fixedly connected to the side of the base (1) near the material drop trough (2). When the pushing component pushes the paper head, a sealed channel is formed between the limiting plate (12), the base (1) and the push plate (4) to restrict the paper head from deviating from the material drop trough (2).

6. The automatic paper tip dropping device for a paper cutter according to claim 1, characterized in that, The first elastic element (5) is an elastic telescopic rod, which is located in the inner cavity of the operating rod (83). One end of the elastic telescopic rod is fixedly connected to the slide rod (3), and the other end is fixedly connected to the bottom of the inner cavity.

7. The automatic paper tip dropping device for a paper cutter according to claim 2, characterized in that, One side of the locking block (9) is fixedly connected to a wedge block (11), and the inclined surface of the wedge block (11) is arranged outward.

8. The automatic paper tip dropping device for a paper cutter according to claim 1, characterized in that, The lateral movement distance of the sliding part (7) is determined by the number of threads of the rotating part (8), and the lateral movement direction of the sliding part (7) is consistent with the lateral movement direction of the slide rod (3).

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