A paper cutting mechanism for a paper output machine

Abstract

This utility model discloses a paper cutting mechanism for a paper output machine, belonging to the technical field of paper output machines. It includes an installation frame, a clamping assembly, and a cutting assembly. The installation frame has inlets and outlets at its top and bottom for paper towels to enter and exit. The clamping assembly includes a symmetrically arranged fixed plate and a movable plate. The fixed plate is fixedly connected to the inner wall of one side of the installation frame, and the movable plate is slidably installed inside the installation frame. This utility model, through the setting of the clamping assembly, has a simple structure and is convenient and practical. It can clamp and fix the paper towels, and through the setting of a motor and lead screw, it can drive the cutting blade to move and cut the paper towels, greatly improving the cutting effect and avoiding incomplete cutting. Furthermore, by setting a storage base and a hanging plate, the cutting blades can be cleaned, preventing residual paper towel debris from affecting the cutting effect.

Description

Technical Field

[0001] This utility model relates to the field of paper output machine technology, specifically a paper cutting mechanism for a paper output machine. Background Technology

[0002] To improve convenience and hygiene standards, more and more public places are choosing paper dispensers to provide toilet paper. These dispensers are mostly wall-mounted and use infrared sensors, so paper can be dispensed automatically by simply reaching out your hand, avoiding hand contact with the equipment and reducing the risk of cross-infection. At the same time, the length of paper dispensed at one time can be controlled by adjusting the speed settings, reducing paper waste.

[0003] The paper feeder is equipped with a paper cutting mechanism, which is used to cut the roll of paper inside the paper feeder, thereby avoiding the user from tearing the paper towel by hand and avoiding contamination of unused paper towels. However, because the paper towel is very thin and has a certain degree of toughness, the paper cutting mechanism sometimes fails to cut completely, and the existing technology has not solved this problem. Utility Model Content

[0004] The purpose of this utility model is to provide a paper cutting mechanism for a paper output machine. By setting a clamping assembly, the paper towel can be clamped and fixed. By setting a motor and lead screw, the cutting blade can be driven to move and cut the paper towel, which greatly improves the cutting effect and avoids incomplete cutting. By setting a storage seat and hanging plate, the cutting blade can be cleaned to prevent residual paper towel debris from affecting the cutting effect, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A paper cutting mechanism for a paper output machine includes a mounting frame, a clamping assembly, and a cutting assembly;

[0007] The top and bottom of the mounting frame are provided with inlets and outlets for paper towels to enter and exit;

[0008] The clamping assembly includes a fixed plate and a movable plate arranged symmetrically. The fixed plate is fixedly connected to the inner wall of one side of the mounting frame, and the movable plate is slidably installed inside the mounting frame. Clamping blocks are fixedly installed on the top and bottom of the side of the fixed plate and the movable plate that contacts the paper towel. The movable plate is fixedly connected to the telescopic end of the electric push rod.

[0009] The cutting assembly includes a cutting blade, which is mounted on a blade holder by screws. The blade holder is fixedly connected to a movable seat, which is mounted on a lead screw. The lead screw is rotatably mounted in a movable groove opened in the middle of a fixed plate.

[0010] Preferably, guide grooves are provided on the inner walls of both sides of the mounting frame, and guide blocks are fixedly installed on both sides of the movable plate, with the guide blocks slidingly engaging with the guide grooves.

[0011] Preferably, the movable plate has a groove in the middle for use with the cutting blade, and the electric push rod is fixedly installed on the outer side wall of the mounting frame.

[0012] Preferably, the movable seat is slidably engaged with the movable groove, and the tool holder is slidably engaged with the movable groove.

[0013] Preferably, one end of the lead screw is connected to the output end of the motor, and the motor is fixedly installed on one side of the fixing plate.

[0014] Preferably, one side of the moving slot is disposed on the storage seat, the storage seat is fixedly connected to the other side of the fixed plate, the storage seat is rotatably connected to the lead screw, and the storage seat is slidably engaged with the moving seat and the tool holder.

[0015] Preferably, two sets of scrapers are fixedly installed on one side of the storage base, and the two sets of scrapers respectively abut against the top and bottom surfaces of the cutting blade.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model features a simple and convenient clamping assembly that can firmly hold and fix paper towels. A motor and lead screw drive the cutting blade to move and cut the paper towels, significantly improving the cutting effect and preventing incomplete cuts. A storage base and hanging plate allow for cleaning of the cutting blades, preventing residual paper towel debris from affecting the cutting results. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the movable plate structure;

[0020] Figure 3 This is a schematic diagram of the fixed plate structure;

[0021] Figure 4 This is a schematic diagram of the cutting component structure.

[0022] In the diagram: 1. Mounting frame; 2. Inlet / outlet; 3. Fixing plate; 4. Moving plate; 5. Clamping block; 6. Electric push rod; 7. Cutting blade; 8. Blade holder; 9. Moving seat; 10. Lead screw; 11. Moving groove; 12. Guide groove; 13. Guide block; 14. Blade groove; 15. Motor; 16. Storage seat; 17. Scraper. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A paper cutting mechanism for a paper feeder includes a mounting frame 1, with inlets and outlets 2 at the top and bottom for paper towels to enter and exit.

[0026] The mounting frame 1 serves as the basic support structure for the entire paper cutting mechanism. Its core function is to provide a stable mounting carrier for the clamping and cutting components, ensuring that each component is fixed in position and works collaboratively. The inlet and outlet 2 at the top and bottom of the frame provide dedicated channels for the paper towel to enter and exit, ensuring that the paper towel can pass through the mechanism along a preset path to complete the cutting. At the same time, the guide grooves 12 on both sides of the inner wall of the mounting frame 1 slide in cooperation with the guide blocks 13 of the moving plate 4, which can limit the sliding direction of the moving plate 4 and prevent it from deviating, thereby ensuring the clamping accuracy of the clamping components for the paper towel and laying a stable foundation for subsequent cutting operations.

[0027] It also includes a clamping assembly, which includes a fixed plate 3 and a movable plate 4 arranged symmetrically. The fixed plate 3 is fixedly connected to the inner wall of one side of the mounting frame 1. The movable plate 4 is slidably installed inside the mounting frame 1. The top and bottom of the fixed plate 3 and the movable plate 4 on the side in contact with the paper towel are fixedly installed with clamping blocks 5. The movable plate 4 is fixedly connected to the telescopic end of the electric push rod 6. The inner walls of both sides of the mounting frame 1 are provided with guide grooves 12. The two sides of the movable plate 4 are fixedly installed with guide blocks 13. The guide blocks 13 slide with the guide grooves 12. The middle of the movable plate 4 is provided with a knife groove 14 for use with the cutting blade 7. The electric push rod 6 is fixedly installed on the outer side of the mounting frame 1.

[0028] The clamping assembly is a key structure for solving the problem of incomplete paper towel cutting. Its main function is to stably clamp and fix the paper towel before cutting. The fixed plate 3, which is fixed to the mounting frame 1, is the fixed clamping end, and the moving plate 4, driven by the electric push rod 6, is the moving clamping end. Both of them have clamping blocks 5 on the top and bottom of the side that contacts the paper towel, which can increase the contact area with the paper towel and prevent the paper towel from shifting or wrinkling during clamping. When the electric push rod 6 pushes the moving plate 4 closer to the fixed plate 3, the two sets of clamping blocks 5 can clamp the paper towel from both sides, preventing the paper towel from being stretched or shifted due to its toughness during cutting, ensuring that the cutting blade 7 can accurately act on the position to be cut and improve the cutting effect. In addition, the blade groove 14 opened in the middle of the moving plate 4 can accommodate the cutting blade 7 to pass through, avoiding collision between the blade and the moving plate 4 and ensuring that the cutting action is carried out smoothly.

[0029] It also includes a cutting assembly, which includes a cutting blade 7. The cutting blade 7 is installed on a blade holder 8 by screws. A maintenance plate is installed on one side of the blade holder 8 by screws. The blade holder 8 is fixedly connected to a movable seat 9. The movable seat 9 is installed on a lead screw 10. The lead screw 10 is rotatably installed in a movable groove 11 opened in the middle of the fixed plate 3. The movable seat 9 and the movable groove 11 are slidably engaged. The blade holder 8 and the movable groove 11 are slidably engaged. One end of the lead screw 10 is connected to the output end of a motor 15. The motor 15 is fixedly installed on one side of the fixed plate 3. One side of the movable groove 11 is provided with a storage seat 16. The storage seat 16 is fixedly connected to the other side of the fixed plate 3. The storage seat 16 is rotatably connected to the lead screw 10. The storage seat 16 is slidably engaged with the movable seat 9 and the blade holder 8. Two sets of scrapers 17 are fixedly installed on one side of the storage seat 16. The two sets of scrapers 17 respectively abut against the top and bottom surfaces of the cutting blade 7.

[0030] The purpose of the cutting assembly is to achieve precise and thorough cutting of the clamped tissue paper, while ensuring the long-term stable operation of the cutting blade 7. The cutting blade 7 in the cutting assembly is installed on the blade holder 8 with screws, which facilitates the replacement and maintenance of the cutting blade 7. The blade holder 8 is fixedly connected to the moving seat 9, and the moving seat 9 is installed on the lead screw 10. When the motor 15 drives the lead screw 10 to rotate, the lead screw 10 can drive the moving seat 9, the blade holder 8 and the cutting blade 7 to slide smoothly along the moving groove 11 of the fixed plate 3, so that the cutting blade 7 can cut the clamped tissue paper at a uniform speed and continuously, avoiding incomplete cutting due to uneven cutting force or unstable speed. At the same time, the storage seat 16 on one side of the moving groove 11 can accommodate the blade holder 8 and the cutting blade 7 after cutting. The two sets of scrapers 17 on one side of the storage seat 16 respectively abut against the top and bottom surfaces of the cutting blade 7, which can scrape off the tissue paper debris remaining on the blade surface when the blade retracts to the storage seat 16, preventing the accumulation of debris from affecting the subsequent cutting accuracy and ensuring the continuous and efficient operation of the blade.

[0031] The electric push rod 6 and motor 15 are electrically connected to the internal controller of the paper output machine. The controller has a main control circuit board with an integrated microprocessor as the control center, responsible for receiving external signals and outputting instructions. It also has a power management module to convert the external power supply of the paper output machine into the low-voltage DC power required by the various components of the controller, ensuring a stable power supply. In terms of circuit connection, the controller is connected to external components through a signal interface module, including receiving the paper output signal from the infrared sensor module, the position feedback signal of the electric push rod 6 in the paper cutting mechanism, the speed feedback signal of the motor 15, and the status signal of the paper shortage detection sensor. The execution control module outputs extension and retraction drive signals to the electric push rod 6 and forward / reverse and start / stop signals to the motor 15 through relays or MOSFETs, respectively, to achieve precise linkage between clamping and cutting actions. In addition, the controller also integrates a simple fault protection circuit. When the motor 15 is overloaded or the electric push rod 6 is jammed, it will automatically cut off the output signal and trigger an alarm (such as flashing indicator lights) to prevent component damage.

[0032] In practical use, move the device to the designated position. First, use bolts to securely install the entire paper cutting mechanism in the preset installation position inside the paper output machine through the pre-reserved fixing holes of the mounting frame 1. Ensure that the mechanism is aligned with the paper towel conveying path of the paper output machine, so that the paper towel can accurately enter from the top inlet / outlet 2 of the mounting frame 1 and exit from the bottom inlet / outlet 2. After installation, turn on the power of the mechanism to establish an electrical connection with the controller of the paper output machine and enter the standby state. When paper cutting is required, the conveying system of the paper output machine will convey the roll of paper to the fixed plate 3 and the moving plate 4. After the length of the paper towel reaches the preset cutting value, the controller will first send a command to the electric push rod 6 of the clamping component. The telescopic end of the electric push rod 6 pushes the moving plate 4 to slide along the guide grooves 12 on both sides of the mounting frame 1 towards the fixed plate 3 until the moving plate 4 and the clamping block 5 on the fixed plate 3 clamp the two sides of the paper towel. After fixing, the controller sends a start signal to the motor 15 of the cutting assembly. The motor 15 drives the lead screw 10 to rotate in the moving groove 11 of the fixed plate 3. The lead screw 10 drives the moving seat 9, which cooperates with it, to slide along the moving groove 11. The moving seat 9 synchronously drives the knife holder 8 and the cutting blade 7 on the knife holder 8 to move. The cutting blade 7 extends out from the moving groove 11 of the fixed plate 3 and passes through the knife groove 14 in the middle of the moving plate 4 to cut the clamped paper towel at a uniform speed. After the cutting is completed, the motor 15 reverses and drives the cutting blade 7, the knife holder 8 and the moving seat 9 to retract. When the cutting blade 7 retracts to the position of the storage seat 16, the two sets of scrapers 17 on one side of the storage seat 16 will scrape off the paper towel debris remaining on the top and bottom surfaces of the blade, thus cleaning the blade. At the same time, the electric push rod 6 drives the moving plate 4 to reset, releases the cut paper towel, and the paper towel is discharged from the inlet and outlet 2 at the bottom of the mounting frame 1, completing one paper cutting cycle.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper cutting mechanism for a paper output machine, comprising a mounting frame (1), characterized in that: It also includes clamping components and cutting components; The mounting frame (1) has inlets and outlets (2) at the top and bottom for paper towels to enter and exit. The clamping assembly includes a fixed plate (3) and a movable plate (4) arranged symmetrically. The fixed plate (3) is fixedly connected to the inner wall of one side of the mounting frame (1). The movable plate (4) is slidably installed inside the mounting frame (1). The top and bottom of the fixed plate (3) and the movable plate (4) on the side in contact with the paper towel are fixedly installed with clamping blocks (5). The movable plate (4) is fixedly connected to the telescopic end of the electric push rod (6). The cutting assembly includes a cutting blade (7), which is mounted on a blade holder (8) by screws. The blade holder (8) is fixedly connected to a movable seat (9), which is mounted on a lead screw (10). The lead screw (10) is rotatably mounted in a movable groove (11) opened in the middle of a fixed plate (3).

2. The paper cutting mechanism for a paper output machine according to claim 1, characterized in that: The inner walls of both sides of the mounting frame (1) are provided with guide grooves (12), and guide blocks (13) are fixedly installed on both sides of the movable plate (4). The guide blocks (13) and the guide grooves (12) slide together.

3. The paper cutting mechanism for a paper output machine according to claim 1, characterized in that: The moving plate (4) has a groove (14) in the middle for use with the cutting blade (7), and the electric push rod (6) is fixedly installed on the outer wall of the mounting frame (1).

4. The paper cutting mechanism for a paper output machine according to claim 1, characterized in that: The movable seat (9) is slidably engaged with the movable groove (11), and the tool holder (8) is slidably engaged with the movable groove (11).

5. A paper cutting mechanism for a paper output machine according to claim 1, characterized in that: One end of the lead screw (10) is connected to the output end of the motor (15), and the motor (15) is fixedly installed on one side of the fixing plate (3).

6. A paper cutting mechanism for a paper output machine according to claim 1, characterized in that: One side of the moving slot (11) is disposed on the storage seat (16), the storage seat (16) is fixedly connected to the other side of the fixing plate (3), the storage seat (16) is rotatably connected to the lead screw (10), and the storage seat (16) is slidably engaged with the moving seat (9) and the knife holder (8).

7. A paper cutting mechanism for a paper output machine according to claim 6, characterized in that: Two sets of scrapers (17) are fixedly installed on one side of the storage base (16), and the two sets of scrapers (17) respectively abut against the top and bottom surfaces of the cutting blade (7).

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