A multi-step stepless adjustable pressure paper holder

Abstract

The utility model discloses a kind of multi-gear stepless adjustable pressure paper ware, including mounting frame, the inside of mounting frame is separated into adjustment area and overhead area by resisting plate and T-shaped partition, and pressure regulating assembly is provided in the inside of adjustment area, and the lower end of mounting frame is rotatably connected with pressure bar;Pressure regulating assembly includes a group of symmetrically slidingly connected in the outer wall of mounting frame and with the position corresponding slider of adjustment area, displacement slot is opened in slider, and the outer wall of mounting frame is opened with the reserved slot corresponding with displacement slot position, and pressure regulating shaft both ends are penetrated through reserved slot and extend to the inside of displacement slot, and the upper end of slider is screw-threaded with pressure regulating screw, and the lower end of pressure regulating screw is penetrated through slider and rotatably connected in pressure regulating shaft, and the lower end of slider is provided with outer wall with spring nail, and spring nail is connected in pressure bar by tension spring, and the continuous linear regulation of paper-pressing wheel pressure is realized using the rotation adjustment of pressure regulating screw, so that pressure change is more fine and stable, i.

Description

Technical Field

[0001] This utility model belongs to the field of paper press technology, specifically a multi-level infinitely adjustable paper press. Background Technology

[0002] A paper presser is a tool used to hold paper or other sheet materials in place, widely used in printing, packaging, cutting, and office applications. It ensures material flatness: During printing, the paper presser precisely presses the paper to keep it flat, thus guaranteeing printing quality. It also prevents material slippage: In cutting, engraving, and other operations, it firmly holds the material, preventing slippage and ensuring precise cutting lines from the engraving or cutting blade, avoiding problems such as skewed patterns and uneven cuts.

[0003] Patent CN222042120U discloses a paper presser for fine-tuning to eliminate geometric tolerances, including a support component mounted on a photo printer and a wheel plate component rotatably connected to the lower part of the support component. A roller for pressing paper is provided at the front end of the wheel plate component. A tension spring for driving the front end of the wheel plate component to press downward is also connected to the wheel plate component. An adjustment component for adjusting the tension force of the tension spring is provided on the support component. A rotating shaft is provided on the wheel plate component for rotatably connecting the wheel plate component to the support component. One end of the rotating shaft is rotatably connected to the support component. A fine-tuning component for adjusting the front and rear position of the other end of the rotating shaft is provided on the support component.

[0004] The aforementioned paper presser cannot adjust the pressure between the press roller and the paper according to the thickness and type of the paper, thus failing to ensure a stable and uniform paper pressing effect under various working conditions and avoid problems such as paper wrinkling, slippage, or poor conveying. In response, we have proposed a multi-level infinitely adjustable paper presser to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-level infinitely adjustable paper pressure device to solve the technical problem of poor paper feeding caused by uneven paper thickness.

[0006] The objective of this utility model can be achieved through the following technical solutions: A multi-level stepless adjustable paper pressure device includes a mounting frame. The interior of the mounting frame is divided into an adjustment area and an overhead area by a contact plate and a T-shaped partition. The adjustment area is equipped with a pressure adjustment component. A pressure rod is rotatably connected to the lower end of the mounting frame. The pressure regulating component includes a set of sliders symmetrically slidably connected to the outer wall of the mounting frame and corresponding to the position of the adjustment area. The sliders are provided with displacement grooves. The outer wall of the mounting frame is provided with a reserved groove corresponding to the position of the displacement groove. A pressure regulating block is provided inside the adjustment area. A pressure regulating shaft corresponding to the position of the displacement groove is rotatably connected to the pressure regulating block. Both ends of the pressure regulating shaft pass through the reserved groove and extend into the displacement groove. The upper end of the slider is threaded with an adjusting screw, the lower end of which passes through the slider and is rotatably connected to the adjusting shaft. The lower end of the slider is provided with a spring hanger on the outer wall, and the spring hanger is connected to the pressure rod through a tension spring.

[0007] Furthermore, the bottom wall of the pressure regulating block is attached to the upper wall of the contact plate, and the end of the pressure regulating block near the mounting bracket is diamond-shaped.

[0008] Furthermore, an overhead lever is rotatably connected inside the overhead area, and the overhead lever is shaped like a "ㄣ".

[0009] Furthermore, an overhead cam is rotatably connected inside the overhead area, and a through slot is opened in the middle of the overhead cam.

[0010] Furthermore, a pressure rod seat is provided at the lower end of the mounting frame, and the pressure rod is rotatably connected to the pressure rod seat. Spring hooks are provided on both the front and rear side walls of the pressure rod seat, and tension springs are connected to the spring hooks. A paper pressing wheel is rotatably connected to the end of the pressure rod away from the spring hook.

[0011] Furthermore, the overhead lever flips downwards and contacts the upper wall of the pressure rod, causing it to rotate.

[0012] The beneficial effects of this utility model are: 1. This utility model drives the slider to move up and down by rotating the pressure adjusting screw clockwise or counterclockwise, thereby changing the vertical position of the slider relative to the paper pressure bar seat, thus changing the tension length of the tension spring, and thus changing the tension. This simultaneously changes the pressure of the pressure bar on the paper, flexibly adapting to papers of different thicknesses or materials. The rotation adjustment of the pressure adjusting screw achieves continuous linear adjustment of the pressure of the paper pressure wheel, making the pressure change more precise and stable, i.e., stepless adjustment, ensuring smoother paper feeding and reducing wrinkles.

[0013] 2. This utility model uses a flipped overhead block to make it abut against the paper pressure bar. At this time, the tension generated by the tension spring of the paper pressure bar is interrupted by the overhead block, and the tension cannot be transmitted to the paper pressure wheel. This design is convenient when the paper pressure bar is not in the working position or when excessive pressure is not required, so that it does not press the paper. It is especially useful when cutting small pieces of paper. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a partial cross-sectional structural diagram of the main body of this utility model; Figure 3 This is a schematic diagram of the voltage regulating block of this utility model in its working state; Figure 4 This is a schematic diagram of the overhead lever block of this utility model in its working state; Figure 5 This is a schematic diagram of the overhead cam of this utility model in its working state; Figure 6 This is a schematic diagram of the structure of the present invention, showing the overhead lever and the overhead cam in a working state at the same time.

[0015] The attached diagram lists the components represented by each number as follows: 1. Mounting bracket; 2. Pressure regulating assembly; 21. Slider; 22. Displacement groove; 23. Spring hook; 24. Pressure regulating screw; 25. Pressure regulating shaft; 26. Pressure regulating lever; 3. Pressure rod; 31. Pressure rod seat; 32. Paper pressing wheel; 33. Spring hook; 4. Tension spring; 5. Overhead lever; 6. Overhead cam; 7. Contact plate; 8. T-shaped partition. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1 - Figure 2 As shown, a multi-level stepless adjustable paper pressure device includes a mounting frame 1. The interior of the mounting frame 1 is divided into an adjustment area and an overhead area by a contact plate 7 and a T-shaped partition 8. The adjustment area is equipped with a pressure adjustment component 2. A pressure rod 3 is rotatably connected to the lower end of the mounting frame 1. The pressure regulating component 2 includes a set of sliders 21 symmetrically slidably connected to the outer wall of the mounting frame 1 and corresponding to the position of the adjustment area. The sliders 21 are provided with displacement grooves 22. The outer wall of the mounting frame 1 is provided with reserved grooves corresponding to the position of the displacement grooves 22. A pressure regulating block 26 is provided inside the adjustment area. A pressure regulating shaft 25 corresponding to the position of the displacement grooves 22 is rotatably connected to the pressure regulating block 26. Both ends of the pressure regulating shaft 25 pass through the reserved grooves and extend into the interior of the displacement grooves 22. The upper end of the slider 21 is threaded with an adjusting screw 24. The lower end of the adjusting screw 24 passes through the slider 21 and is rotatably connected to the adjusting shaft 25. The lower end of the slider 21 is provided with a spring hanger 23 on its outer wall. The spring hanger 23 is connected to the pressure rod 3 through a tension spring 4.

[0018] Please see Figure 3As shown, specifically, in the initial pre-press state, the pressure adjusting block 26 is in a non-working state, and the paper pressing rod 3 is in a retracted position under the action of the tension spring 4. At this time, rotating the pressure adjusting screw 24 clockwise or counterclockwise will drive the slider 21 to move up and down, thereby changing the vertical position of the slider 21 relative to the paper pressing rod seat 31, thus changing the extension length of the tension spring 4, thereby realizing the change of tension, and simultaneously changing the pressure of the pressure rod 3 on the paper. Through this adjustment mechanism, it can flexibly adapt to different thicknesses (such as thin paper, coated paper, cardstock) or different materials (such as ordinary paper, specialty paper), ensuring that the equipment can achieve a stable and uniform paper pressing effect under various working conditions, avoiding problems such as paper wrinkling, slippage, or poor conveying. The rotation adjustment of the pressure adjusting screw 24 realizes the continuous linear adjustment of the pressure of the paper pressing roller 32, making the pressure change more precise and stable, that is, the so-called stepless adjustment.

[0019] When the pressure adjusting block is in working condition: the pressure adjusting block 26 is moved upward, which simultaneously drives the pressure adjusting screw 24 and the slider 21 assembled with it to move upward along the preset trajectory, thereby increasing the tension length of the tension spring 4, resulting in an increase in the paper pressing force of the pressure rod 3. At this time, the paper pressing wheel 32 is compressed, and the paper pressing force changes gradually with the change of the compression stroke.

[0020] The bottom wall of the pressure regulating block 26 is attached to the upper wall of the contact plate 7, and the end of the pressure regulating block 26 near the mounting bracket 1 is diamond-shaped.

[0021] Specifically, by utilizing the rhomboid end of the voltage regulating block 26, it can remain horizontal and stable in the non-working state, while it can stand upright in the working state, thus improving its practicality.

[0022] An overhead switch block 5 is rotatably connected inside the overhead area, and the overhead switch block 5 is in the shape of "ㄣ".

[0023] Please see Figure 4 As shown, specifically, by utilizing the special structure of the overhead lever 5, it abuts against the contact plate 7 and remains stable when not in operation. When the overhead lever 5 is in operation, the tension generated by the tension spring 4 of the paper pressing rod 3 is interrupted by the overhead lever 5, and the tension cannot be transmitted to the paper pressing wheel 32. This design is convenient when the paper pressing rod 3 is not in the working position or when excessive pressure from the paper pressing rod 3 is not required, so that the paper pressing rod 3 does not exert a pressing effect on the paper, especially when cutting small pieces of paper.

[0024] A protrusion corresponding to the position of the overhead block 5 is provided on the inner wall of the mounting frame 1. The overhead block 5 is inserted into the protrusion by external force, so that the overhead block 5 is in a stable non-working state. When the overhead block 5 is pulled out of the protrusion by external force and is locked on the paper pressing rod 3, the tension spring 4 on the paper pressing rod 3 is completed. With the tension of the tension spring 4, the overhead block 5 is not easy to get out of the overhead state.

[0025] An overhead cam 6 is rotatably connected inside the overhead area, and a through slot is opened in the middle of the overhead cam 6.

[0026] Please see Figure 5 As shown, specifically, a tool is inserted into the through slot and rotated, causing the overhead cam 6 to abut against the paper pressure rod 3. The spring tension on the paper pressure rod 3 is interrupted by the overhead cam 6, preventing the tension from being transmitted to the paper pressure roller 32. Typically, the entire paper pressure assembly is suspended via the control handle on the machine. This situation mainly occurs when the equipment is not in operation, or during long-term storage and long-distance transportation. This reduces the deformation of the main beam and worktable caused by prolonged pressure on the worktable.

[0027] Please see Figure 6 As shown, the overhead cam 6 and the overhead lever 5 are both in working state. The overhead cam 6 will not have any effect on the paper pressing rod 3 because the overhead cam 6 cannot contact the paper pressing rod 3 at this time. At this time, the overhead cam 6 can be rotated to reset it.

[0028] The lower end of the mounting frame 1 is provided with a pressure rod seat 31, and the pressure rod 3 is rotatably connected to the pressure rod seat 31. The front and rear side walls of the pressure rod seat 31 are provided with spring hooks 33, and the tension spring 4 is connected to the spring hooks 33. The end of the pressure rod 3 away from the spring hooks 33 is rotatably connected to the paper pressing wheel 32.

[0029] The overhead lever 5 flips downwards and contacts the upper wall of the pressure rod 3, causing it to rotate.

[0030] Working principle and workflow: In the initial pre-pressure state, turning the pressure adjusting screw 24 clockwise or counterclockwise will drive the slider 21 to move up and down, thereby changing the vertical position of the slider 21 relative to the paper pressure bar seat 31, thus changing the tension length of the tension spring 4, thereby changing the tension and simultaneously changing the pressure of the pressure bar 3 on the paper.

[0031] When the pressure adjusting block 26 is in working condition: the pressure adjusting block 26 is moved upward, which simultaneously drives the pressure adjusting screw 24 and the slider 21 assembled with it to move upward along the preset trajectory, thereby increasing the tension length of the tension spring 4, which leads to an increase in the paper pressing force of the pressure rod 3. At this time, the paper pressing wheel 32 is compressed, and the paper pressing force changes gradually with the change of the compression stroke.

[0032] When smaller pieces of paper need to be cut, the lifting block 5 is pulled out of the protrusion by external force and locked onto the paper pressing rod 3. This completes the process of lifting the tension spring 4 on the paper pressing rod 3. The tension generated by the tension spring 4 on the paper pressing rod 3 is interrupted by the lifting block 5, and the tension cannot be transmitted to the paper pressing roller 32. This design is convenient when the paper pressing rod 3 is not in the working position or does not require too much pressure, so that the paper pressing rod 3 does not have a pressing effect on the paper.

[0033] When the equipment is not in operation, or when the equipment is stored for a long time or transported over long distances, the overhead cam 6 abuts against the paper pressing rod 3, so that the spring tension on the paper pressing rod 3 is interrupted by the overhead cam 6, and the tension cannot be transmitted to the paper pressing wheel 32. Usually, the entire paper pressing device is suspended by the control handle on the whole machine, which reduces the problem of deformation of the main beam and worktable caused by long-term pressure on the worktable.

[0034] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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.

Claims

1. A multi-stage infinitely adjustable paper pressure device, comprising a mounting frame (1), characterized in that: The mounting frame (1) is divided into an adjustment area and an overhead area by a contact plate (7) and a T-shaped partition (8). The adjustment area is equipped with a pressure regulating component (2). A pressure rod (3) is rotatably connected to the lower end of the mounting frame (1). The pressure regulating component (2) includes a set of sliders (21) symmetrically slidably connected to the outer wall of the mounting frame (1) and corresponding to the position of the adjustment area. The sliders (21) are provided with displacement grooves (22). The outer wall of the mounting frame (1) is provided with a reserved groove corresponding to the position of the displacement groove (22). The adjustment area is provided with a pressure regulating block (26). The pressure regulating block (26) is rotatably connected with a pressure regulating shaft (25) corresponding to the position of the displacement groove (22). The two ends of the pressure regulating shaft (25) pass through the reserved groove and extend into the displacement groove (22). The upper end of the slider (21) is threaded with a pressure adjusting screw (24), the lower end of the pressure adjusting screw (24) passes through the slider (21) and is rotatably connected to the pressure adjusting shaft (25), the lower end of the slider (21) is provided with a spring hanger (23) on the outer wall, and the spring hanger (23) is connected to the pressure rod (3) through a tension spring (4).

2. The multi-stage infinitely adjustable paper pressure device according to claim 1, characterized in that: The bottom wall of the pressure regulating block (26) is attached to the upper wall of the contact plate (7), and the end of the pressure regulating block (26) near the mounting frame (1) is rhomboid.

3. The multi-stage infinitely adjustable paper pressure device according to claim 1, characterized in that: The overhead area is rotatably connected to an overhead lever (5), which is in the shape of "ㄣ".

4. The multi-stage infinitely adjustable paper pressure device according to claim 1, characterized in that: An overhead cam (6) is rotatably connected inside the overhead area, and a through slot is provided in the middle of the overhead cam (6).

5. The multi-stage infinitely adjustable paper pressure device according to claim 1, characterized in that: The mounting bracket (1) is provided with a pressure rod seat (31) at its lower end. The pressure rod (3) is rotatably connected to the pressure rod seat (31). The pressure rod seat (31) is provided with spring hooks (33) on both the front and rear side walls. The tension spring (4) is connected to the spring hooks (33). The pressure rod (3) is rotatably connected to a paper pressing wheel (32) at the end away from the spring hooks (33).

6. The multi-stage infinitely adjustable paper pressure device according to claim 3, characterized in that: The overhead lever (5) flips downward and abuts against the upper wall of the pressure rod (3) to make it rotate.

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