A roll change and cut-off device for a paper winding machine

Abstract

The application relates to the field of paper winding machine equipment, in particular to a roll changing and paper cutting device for a paper winding machine, which comprises a mounting frame, a cutting assembly is arranged on the mounting frame, a supporting plate is arranged on one side of the cutting assembly, a guide assembly is arranged between the supporting plate and the mounting frame, and a transmission assembly is arranged between the supporting plate and the cutting assembly. According to the design of the transmission assembly, when cutting knife II is lowered for cutting, the supporting plate can be synchronously pushed out of the cutting position, so that the supporting part does not interfere with the cutting action; when cutting knife II is lifted for resetting, the supporting plate can return to the cutting position and cooperate with the horizontal plate under the action of the transmission assembly, so that the continuity of paper transmission is ensured; the linkage logic solves the problems of unsmooth transmission and slow action response of the existing device, the cooperation between cutting and supporting is more accurate, the paper cutting deviation caused by improper cooperation of parts is reduced, and the stability of the roll changing and paper cutting process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of paper rolling machine equipment, specifically to a paper changing and cutting device for a paper rolling machine. Background Technology

[0002] In the papermaking and paper product processing industries, paper winding machines play a crucial role. They continuously wind paper into finished rolls to meet various packaging, transportation, and usage needs. With the continuous expansion of production scale and increasing demands for production efficiency, the automation level of paper winding machines and the performance optimization of related supporting equipment have become increasingly critical.

[0003] The paper roll changing and cutting process involves the coordinated work of multiple components, such as the cutting component and the support component, which need to have good transmission coordination to ensure that the entire paper roll changing and cutting operation is carried out in an orderly manner. However, in existing devices, there are often problems such as insufficient smooth transmission between components and unreasonable linkage logic, which makes the entire paper roll changing and cutting action response untimely and inaccurate, and unable to efficiently complete the paper cutting and related connection work.

[0004] Furthermore, after paper is cut, some debris or electrostatic adsorption may occur at the cut edge, affecting the subsequent processing and use of the paper. Most traditional paper-cutting and roll-changing devices are not equipped with corresponding auxiliary processing functions, which is not conducive to improving product quality and the cleanliness of the production environment. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] In view of the above-mentioned background technology, there are shortcomings and defects in the existing technology, such as insufficient transmission and the impact of debris or electrostatic adsorption on the quality of finished paper.

[0006] The present invention discloses a paper changing and cutting device for a paper roll machine, comprising a mounting frame, a cutting component mounted on the mounting frame, a support plate mounted on one side of the cutting component, a guide component between the support plate and the mounting frame, and a transmission component between the support plate and the cutting component.

[0007] Furthermore, the guiding component includes two guide plates, which are symmetrically arranged on the mounting bracket. The two mounting brackets are provided with a sliding groove on the side that is close to each other, and the support plate is slidably arranged with the sliding groove.

[0008] Furthermore, the cutting assembly includes a first cutting blade and a second cutting blade. The first cutting blade and the second cutting blade are arranged opposite to each other. The first cutting blade is fixedly mounted on the mounting frame. The second cutting blade is provided with a fixing frame. A telescopic cylinder is provided between the fixing frame and the mounting frame. The second cutting blade and the fixing frame are connected by fixing bolts.

[0009] Furthermore, the transmission assembly includes a guide groove one and a guide groove two, both of which are mounted on the mounting frame. The guide groove one is vertically arranged, and the guide groove two is horizontally arranged. A connecting rod one is mounted on the fixed frame, with one end of the connecting rod one passing through the guide groove one. A connecting rod two is mounted on the support plate, passing through the guide plate and the guide groove two. The connecting rod two and the connecting rod one are rotatably connected through the connecting plate.

[0010] Furthermore, a nozzle is provided above the support plate, and multiple nozzles are provided. The multiple nozzles are connected by a distributor. The distributor is provided with an air inlet, and the air inlet is connected to an external air source tank.

[0011] Furthermore, a horizontal plate is provided on the side of the cutting assembly away from the support plate. The horizontal plate and the upper surface of the support plate are on the same horizontal plane. A roller is provided above the horizontal plate. The roller is rotatably mounted on the mounting frame. A drive source is provided between the roller and the mounting frame.

[0012] Furthermore, the end of the support plate near the horizontal plate is rounded, and the horizontal plate is provided with an arc-shaped groove corresponding to the rounded end of the support plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of the transmission component, allows the support plate to be moved out of the cutting position simultaneously when the second cutter descends to cut, avoiding interference from the cutting action by the support component; when the second cutter rises to reset, the support plate can return to the cutting position under the action of the transmission component and cooperate with the horizontal plate to ensure the continuity of paper transmission; this linkage logic solves the problems of unsmooth transmission and delayed action response in existing devices, making the coordination between cutting and support more precise, reducing paper breakage deviation caused by improper component coordination, and improving the stability of the paper breakage process during roll changing.

[0015] 2. This invention utilizes multiple nozzles above the support plate connected to an external air source via a distributor. This allows for air jetting onto the cut edge after paper cutting, effectively removing debris and mitigating electrostatic adsorption. This solves the problem of poor cut quality caused by the lack of auxiliary processing in traditional devices. Simultaneously, the support plate and the horizontal plate are set at the same height, and their curved ends precisely match the grooves, ensuring a smooth transition of paper transport before and after cutting, preventing paper wrinkles or shifting. This design not only improves the quality of the finished paper but also reduces defects caused by poor paper condition during subsequent processing, contributing to a cleaner production environment. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear side of the present invention;

[0019] Figure 3 This is a schematic diagram of the guide plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the cutting component of this utility model.

[0021] In the diagram: 1. Mounting frame; 2. Cutting assembly; 201. Cutting shears one; 202. Cutting shears two; 203. Fixing frame; 204. Telescopic cylinder; 3. Guide plate; 4. Support plate; 5. Slide groove; 6. Transmission assembly; 601. Guide groove one; 602. Guide groove two; 603. Connecting rod one; 604. Connecting rod two; 605. Connecting plate; 7. Horizontal plate; 8. Roller; 9. Drive source; 10. Nozzle; 11. Diverter; 12. Air inlet. Detailed Implementation

[0022] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0023] Please see Figure 1 , Figure 4 This utility model discloses a paper changing and cutting device for a paper roll machine, comprising a mounting frame 1, on which a cutting component 2 is mounted. The cutting component 2 includes a first cutting blade 201 and a second cutting blade 202, which are arranged opposite to each other. The blades of the first cutting blade 201 and the second cutting blade 202 are made of alloy steel that has undergone a special heat treatment process, giving them high hardness and sharpness to ensure clean and neat paper cutting, while also having good wear resistance and extending service life. The shape of the blades can be designed as a bevel shape suitable for cutting paper, so that they can cut into the paper more smoothly during cutting, reduce the pulling of paper fibers, and avoid quality problems such as rough edges.

[0024] See Figure 2 , Figure 3 As shown, the first cutting scissors 201 is fixedly mounted on the mounting frame 1, and the second cutting scissors 202 is provided with a fixing frame 203. A telescopic cylinder 204 is provided between the fixing frame 203 and the mounting frame 1. The second cutting scissors 202 and the fixing frame 203 are connected by fixing bolts. A support plate 4 is provided on one side of the cutting assembly 2. The support plate 4 adopts a polishing process to reduce the friction when the paper moves on its surface, so that the paper is transported more smoothly and the static electricity generated by friction is reduced. A nozzle 10 is provided above the support plate 4. The nozzle 10 can effectively remove debris and alleviate the problem of static electricity adsorption.

[0025] In this embodiment, multiple nozzles 10 are provided, and the multiple nozzles 10 are connected by a distributor 11 to ensure that the gas introduced by the air inlet 12 can be evenly distributed to each nozzle 10. The distributor 11 is provided with an air inlet 12, which is connected to an external air source tank. At the connection between the distributor 11 and the nozzles 10 and the air inlet 12, a rubber sealing ring with good sealing performance is used to prevent gas leakage and ensure the jetting effect. A horizontal plate 7 is provided on the side of the cutting component 2 away from the support plate 4.

[0026] In this embodiment, the upper surfaces of the horizontal plate 7 and the support plate 4 are on the same horizontal plane. A roller 8 is provided above the horizontal plate 7. The roller 8 is rotatably mounted on the mounting frame 1. A drive source 9 is provided between the roller 8 and the mounting frame 1. The drive source 9 is a servo motor. The servo motor is fixed to the mounting frame 1. The end of the support plate 4 near the horizontal plate 7 is arc-shaped. An arc-shaped groove corresponding to the arc of one end of the support plate 4 is provided on the horizontal plate 7. A guide assembly is provided between the support plate 4 and the mounting frame 1. The guide assembly includes a guide plate 3. There are two guide plates 3.

[0027] In this embodiment, two guide plates 3 are symmetrically arranged on the mounting frame 1. The guide plates 3 are fixed to the mounting frame 1 by bolt connection to ensure that there will be no loosening or deformation during the frequent sliding of the support plate 4. A sliding groove 5 is provided on the side of the two mounting frames 1 that is close to each other. The support plate 4 slides in the sliding groove 5. The guide surface of the guide plate 3 is precision machined to ensure its smoothness and straightness, so that the support plate 4 can slide in the sliding groove 5 in the accurate direction, thereby improving the stability and accuracy of the entire device operation.

[0028] See Figure 2 , Figure 3 , Figure 4As shown, a transmission assembly 6 is provided between the support plate 4 and the cutting assembly 2. The transmission assembly 6 includes a guide groove 1 601 and a guide groove 2 602. Both guide groove 1 601 and guide groove 2 602 are provided on the mounting frame 1. Guide groove 1 601 is vertically arranged, and guide groove 2 602 is horizontally arranged. The inner walls of guide groove 1 601 and guide groove 2 602 are coated with a smooth coating to reduce friction during movement. A connecting rod 1 603 is provided on the fixing frame 203. One end of the connecting rod 1 603 passes through the guide groove 1 601. A connecting rod 2 604 is provided on the support plate 4. The connecting rod 2 604 passes through the guide plate 3 and the guide groove 2 602. The connecting rod 2 604 and the connecting rod 1 603 are rotatably connected by a connecting plate 605.

[0029] The implementation principle is as follows: When the paper roll machine is working normally, the drive source 9 drives the roller 8 to rotate, and the paper is conveyed under the drive of the roller 8. At this time, the paper is supported by the horizontal plate 7 and the support plate 4. Under the sliding support of the guide component, the support plate 4 is located between the first cutter 201 and the second cutter 202, and the arc end of the support plate 4 is precisely matched with the arc groove of the horizontal plate 7 to ensure that the paper is stable and without deviation or wrinkles during the conveying process.

[0030] When it is necessary to change the paper roll, the cutting component 2 is activated, the telescopic cylinder 204 extends and pushes the fixing frame 203 down, which drives the second cutting blade 202 to move closer to the first cutting blade 201. Finally, the second cutting blade 202 and the first cutting blade 201 work together to complete the paper cutting action.

[0031] While the second cutting shear 202 descends for cutting, the transmission component 6 works synchronously; the fixed frame 203 moves down, causing the first connecting rod 603 to move vertically down along the first guide groove 601. The first connecting rod 603 pushes the second connecting rod 604 to move horizontally along the second guide groove 602 through the connecting plate 605, thereby causing the support plate 4 to slide along the slide groove 5, so that one end of the support plate 4 moves out from between the first cutting shear 201 and the second cutting shear 202, avoiding interference with the cutting action and ensuring cutting accuracy.

[0032] After the paper is cut, multiple nozzles 10 above the support plate 4 are connected to an external air source tank through a distributor 11. After the external air source is split, the air is sprayed onto the paper cut, effectively removing debris from the cut and alleviating the problem of electrostatic adsorption, improving the quality of the paper cut, and keeping the production environment clean.

[0033] After cutting, the telescopic cylinder 204 retracts, causing the fixed frame 203 and the second cutting blade 202 to rise and reset. At this time, the first connecting rod 603 moves upward along the first guide groove 601, and the second connecting rod 604 is pulled in the opposite direction along the second guide groove 602 through the connecting plate 605. This causes the support plate 4 to return to its original position along the slide groove 5 under the action of the guide component, so that one end of the support plate 4 moves again between the first cutting blade 201 and the second cutting blade 202, and re-engages with the arc-shaped groove of the horizontal plate 7, preparing for the next paper transfer or roll change operation, ensuring the continuity and smoothness of the entire roll change and paper cutting process.

[0034] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A change-over and cutting device for a paper winding machine, comprising a mounting frame (1), characterized in that: A cutting component (2) is provided on the mounting frame (1), a support plate (4) is provided on one side of the cutting component (2), a guide component is provided between the support plate (4) and the mounting frame (1), and a transmission component (6) is provided between the support plate (4) and the cutting component (2).

2. A change-over and cutting device for a paper winding machine according to claim 1, characterized in that: The guiding component includes a guide plate (3), and there are two guide plates (3). The two guide plates (3) are symmetrically arranged on the mounting bracket (1). A sliding groove (5) is provided on one side of the two mounting brackets (1) that is close to each other. The support plate (4) is slidably arranged with the sliding groove (5).

3. A change-over and cutting device for a paper winding machine according to claim 2, characterized in that: The cutting assembly (2) includes a first cutting blade (201) and a second cutting blade (202). The first cutting blade (201) and the second cutting blade (202) are arranged opposite to each other. The first cutting blade (201) is fixedly installed on the mounting frame (1). The second cutting blade (202) is provided with a fixing frame (203). A telescopic cylinder (204) is provided between the fixing frame (203) and the mounting frame (1). The second cutting blade (202) and the fixing frame (203) are connected by fixing bolts.

4. A change-over and cutting device for a paper winding machine according to claim 3, characterized in that: The transmission assembly (6) includes a guide groove one (601) and a guide groove two (602). Both the guide groove one (601) and the guide groove two (602) are mounted on the mounting frame (1). The guide groove one (601) is vertically mounted, and the guide groove two (602) is horizontally mounted. A connecting rod one (603) is mounted on the fixing frame (203). One end of the connecting rod one (603) passes through the guide groove one (601). A connecting rod two (604) is mounted on the support plate (4). The connecting rod two (604) passes through the guide plate (3) and the guide groove two (602). The connecting rod two (604) and the connecting rod one (603) are rotatably connected by a connecting plate (605).

5. A change-over and cutting device for a paper winding machine according to claim 1, characterized in that: A nozzle (10) is provided above the support plate (4). Multiple nozzles (10) are provided and connected to each other through a distributor (11). An air inlet (12) is provided on the distributor (11) and the air inlet (12) is connected to an external air source tank.

6. A paper changing and cutting device for a paper winding machine according to claim 1, characterized in that: The cutting assembly (2) has a horizontal plate (7) on the side away from the support plate (4). The horizontal plate (7) and the upper surface of the support plate (4) are on the same horizontal plane. A roller (8) is provided above the horizontal plate (7). The roller (8) is rotatably mounted on the mounting frame (1). A drive source (9) is provided between the roller (8) and the mounting frame (1).

7. A change-over and cutting device for a paper winding machine according to claim 6, characterized in that: The end of the support plate (4) near the horizontal plate (7) is rounded, and the horizontal plate (7) is provided with an arc-shaped groove corresponding to the arc of one end of the support plate (4).

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