A cutting device for coating machine winding

Abstract

The utility model discloses a paper cutting device for the winding of coating machine, including winding rotary frame and paper cutting movable dolly, winding rotary frame adopts double position setting, and the winding rotary frame is installed with 180 symmetry setting for automatic switching and receiving roll paper's A spool and B spool, paper cutting movable dolly includes paper cutting knife movable frame, track frame, paper knife drive motor and compression roller, and track frame sliding installation is in the slide rail of paper cutting knife movable frame, and track frame drives the compression roller of end portion installation to slide along the slide rail on paper cutting knife movable frame before and after under paper knife drive motor drive, the track frame on the rear side of compression roller is installed with the paper cutting knife seat of being located the upper and lower sides of compression roller, and the upper side of paper cutting knife seat is installed with the upper cutting knife of cutting paper on the raw paper, and the lower side of paper cutting knife seat is installed with the lower cutting knife of cutting paper below the raw paper, and according to need selects the upper cutting knife or lower cutting knife to make the coating paper coating surface and other coating machine platform winding consistent.

Description

Technical Field

[0001] This utility model relates to the field of coating machine winding technology, and in particular to a paper cutting device for coating machine winding. Background Technology

[0002] In papermaking, a coating machine is a device used to coat the surface of paper with a coating. After coating, the product is usually rolled into a roll. Before entering the next process, it often needs to be slit and rewound by a slitting and rewinding machine for slitting and trimming, and then rewound or cut into large sheets.

[0003] However, in existing technologies, the reverse direction of the winding rack in the coating machine causes the coated paper to change from being on the outside to on the inside after winding. This results in inconsistencies in the coated surface of the same product compared to other coating machines, requiring different treatment. This not only reduces slitting efficiency but also poses quality risks. Therefore, during production, it is often necessary to change the winding direction from top to bottom to ensure the coated surface is consistent with products from other coating machines. However, after modifying the winding direction, the cutter needs to be moved from the top to the bottom. Due to the influence of the starting shaft of the moving carriage on the coating machine, the cutter and its protective cover cannot be installed. This necessitates a redesign and remanufacturing of the cutter at the winding section of the existing coating machine to eliminate safety hazards such as personnel being cut by the cutter. Summary of the Invention

[0004] This utility model provides a paper cutting device for the winding of a coating machine. The position of the paper cutter in the winding section is reasonably set, and different cutters are selected as needed to ensure that the coating surface of the coated paper is consistent with the winding of other coating machines. This effectively avoids quality problems or accidents caused by incorrect cutting and winding due to different coating surfaces, and effectively avoids quality risks.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A paper cutting device for winding a coating machine, which selects different paper cutters as needed to make the coating surface of the coated paper consistent with the winding of other coating machine tables, includes a winding rotating frame and a paper cutting moving trolley. The winding rotating frame adopts a dual-station setting, and the winding rotating frame is equipped with A roll and B roll arranged 180° symmetrically for automatic switching of winding paper.

[0007] The paper-cutting trolley includes a movable paper-cutting frame, a track frame, a paper-cutting drive motor, and a pressure roller. The paper-cutting drive motor and the pressure roller are respectively mounted on the track frame. The track frame is slidably mounted on the slide rail of the movable paper-cutting frame. Driven by the paper-cutting drive motor, the track frame drives the pressure roller mounted at its end to slide back and forth along the slide rail on the movable paper-cutting frame.

[0008] Paper cutter holders are installed on the track frame behind the pressure roller, located on the upper and lower sides of the pressure roller. An upper cutter is installed on the upper side of the paper cutter holder, which cuts the paper on the raw paper and is used for the A or B reel on the winding frame to take the paper in the upward winding direction. A lower cutter is installed on the lower side of the paper cutter holder, which cuts the paper on the raw paper and is used for the A or B reel on the winding frame to take the paper in the downward winding direction.

[0009] Preferably, the upper and lower cutters on the paper cutter holder are driven by power cylinders.

[0010] Preferably, a central rotating shaft is installed at the deflection center of the winding rotating frame, and a winding support seat is provided on the lower side of the winding rotating frame to support the rotation of the central rotating shaft; a winding motor is installed on the side of the winding support seat, which drives the A roll and B roll on the winding rotating frame to automatically switch and take up the paper roll after deflecting 180° around the central rotating shaft by a transmission chain.

[0011] The beneficial effects of this utility model are:

[0012] On the upper and lower sides of the pressure rollers corresponding to the A or B rolls on the winding rotary frame, an upper cutter is installed on the upper side of the paper cutter holder to cut the paper from the top and to use the upward winding direction of the A or B rolls on the winding rotary frame. On the lower side of the paper cutter holder, a lower cutter is installed to cut the paper from the bottom and to use the downward winding direction of the A or B rolls on the winding rotary frame. As needed, the upper cutter or the lower cutter is selected to cut the paper from the top and to use the upward or downward winding respectively to make the coating surface of the coated paper consistent with the winding of other coating machines. This effectively avoids quality problems or quality accidents caused by different coating surfaces, such as incorrect slitting and winding, and effectively avoids quality risks.

[0013] In this way, it is not necessary to designate a specific slitting machine or personnel for slitting during coated paper production. All slitting machines and operators can perform the slitting, greatly improving the efficiency of finished product slitting. Moreover, the automatic switching between upper and lower cutters for cutting the raw paper enables automatic switching between upper and lower winding modes. There is no gap between the paper roll and the pressure roller, effectively improving the safety of the production site and preventing accidents from occurring in this area.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the assembly structure of the paper-cutting moving trolley during the lateral movement process in this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] A pressure screen system for top coating of a coating machine, such as Figure 1 and Figure 2 As shown, different paper cutters are selected as needed to ensure that the coating surface of the coated paper is consistent with that of other coating machines. The system includes a winding rotary frame 1 and a paper cutting trolley 2. The winding rotary frame 1 has a dual-station configuration, with A-roller 3 and B-roller 4 symmetrically arranged at 180° for automatic switching of the paper roll. The paper cutting trolley 2 includes a paper cutter movable frame 20, a track frame 21, a paper cutter drive motor 22, and a pressure roller 23. The paper cutter drive motor 22 and the pressure roller 23 are respectively mounted on the track frame 21, which is slidably mounted on the slide rail 2 of the paper cutter movable frame 20. 4. Under the drive of the paper knife drive motor 22, the track frame 21 drives the pressure roller 23 installed at the end to slide back and forth along the slide rail on the paper cutter movable frame 20. On the track frame 21 behind the pressure roller 23, there are also paper cutter seats 25 located on the upper and lower sides of the pressure roller 23. The upper side of the paper cutter seat 25 is equipped with an upper cutter 5 for cutting paper on the raw paper and for the A roll 3 or B roll 4 on the winding rotating frame 1 to take up the paper in the upward winding direction. The lower side of the paper cutter seat 25 is equipped with a lower cutter 6 for cutting paper on the raw paper and for the A roll 3 or B roll 4 on the winding rotating frame 1 to take up the paper in the downward winding direction.

[0019] Continue as Figure 1 and Figure 2 As shown, the upper cutter 5 and lower cutter 6 on the paper cutter holder 25 are driven by power cylinders respectively; a central rotating shaft 7 is also installed at the deflection center of the winding rotating frame 1, and a winding bracket seat 8 is provided on the lower side of the winding rotating frame 1 to support the rotation of the central rotating shaft 7; a winding motor 10 is installed on the side of the winding bracket seat 8, which drives the A roll 3 and B roll 4 on the winding rotating frame 1 to deflect 180° around the central rotating shaft 7 and automatically switch to take up the paper roll.

[0020] In this embodiment, the paper cutter is mainly used in the papermaking industry. On the upper and lower sides of the pressure roller 23 corresponding to the A roll 3 or B roll 4, the upper cutter 5 and the lower cutter 6 are respectively installed on the upper and lower sides of the paper cutter holder 25. As needed, the upper cutter 5 or the lower cutter 6 is selected to cut the paper. The upper winding or lower winding is used to make the coating surface of the coated paper consistent with the winding of other coating machines, effectively avoiding quality problems or quality accidents caused by different coating surfaces and slitting and winding errors, and effectively avoiding quality risks.

[0021] Furthermore, in this embodiment, upper and lower cutters 6 are respectively installed on the upper and lower sides of the pressure roller 23, corresponding to the upper and lower sides of the paper cutter holder 25. During use, by adjusting the angle and range of motion between the upper or lower cutter 6 and the A-roll 3 or B-roll 4, ensuring that the upper or lower cutter 6 does not contact the A-roll 3 or B-roll 4, the paper web can be cut normally. Then, by changing the motor winding direction, the winding direction of the coated paper surface can be changed to meet the process requirements. Moreover, the paper cutting process using the lower cutter in the winding section is safer and requires very little maintenance.

[0022] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. All equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A paper cutting device for winding a coating machine, wherein different paper cutters are selected as needed to ensure that the coating surface of the coated paper is consistent with the winding of other coating machine tables, characterized in that, It includes a winding rotating frame and a paper cutting moving trolley. The winding rotating frame adopts a dual-station setting and is equipped with A roll and B roll arranged 180° symmetrically for automatic switching of taking in the paper roll. The paper-cutting trolley includes a movable paper-cutting frame, a track frame, a paper-cutting drive motor, and a pressure roller. The paper-cutting drive motor and the pressure roller are respectively mounted on the track frame. The track frame is slidably mounted on the slide rail of the movable paper-cutting frame. Driven by the paper-cutting drive motor, the track frame drives the pressure roller mounted at its end to slide back and forth along the slide rail on the movable paper-cutting frame. Paper cutter holders are installed on the track frame behind the pressure roller, located on the upper and lower sides of the pressure roller. An upper cutter is installed on the upper side of the paper cutter holder, which cuts the paper on the raw paper and is used for the A or B reel on the winding frame to take the paper in the upward winding direction. A lower cutter is installed on the lower side of the paper cutter holder, which cuts the paper on the raw paper and is used for the A or B reel on the winding frame to take the paper in the downward winding direction.

2. The paper cutting device for coating machine winding according to claim 1, characterized in that: The upper and lower cutters on the paper cutter holder are driven by power cylinders.

3. A paper cutting device for coating machine winding according to claim 1, characterized in that: A central rotating shaft is installed at the deflection center of the winding rotating frame, and a winding support base is provided on the lower side of the winding rotating frame to support the rotation of the central rotating shaft; a winding motor is installed on the side of the winding support base, which drives the A roll and B roll on the winding rotating frame to automatically switch and take up the paper roll after deflecting 180° around the central rotating shaft by a transmission chain.

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