Self-regulating mechanism of the paper pressing system of adsorption-type sheet-fed machine

Abstract

The self-regulating mechanism of the adsorption-type single-sheet paper pressing system includes side wall panels, multiple independent upper paper pressing wheel shaft operating mechanisms, multiple sets of transmission swing arm assemblies, secondary transmission pulleys, primary transmission pulleys, motor mounting brackets, X-axis drive motors, upper paper pressing wheel shafts, lower paper pressing wheel shafts, and working platforms, which overcome the shortcomings of the existing technology. Multiple sets of upper paper pressing wheel shafts are installed and assembled into a whole with V-shaped sliders at both ends, and can be moved up and down through four guide columns with linear bearings installed between the fixed plates on both sides and the working platform. The movement displacement is limited by the limit sleeve; multiple sets of adjustable compression springs are used to apply pressure to the end bearings of the upper paper pressing shaft assembly, which can be adjusted to the appropriate clamping force as needed.

Description

Technical Field

[0001] The invention belongs to the technical field of adsorption-type single-sheet feeding machines, and in particular relates to an autonomous adjustment mechanism of a paper pressing system of an adsorption-type single-sheet feeding machine. Background Art

[0002] A sheet-fed cutting machine is a device that performs directional cutting on sheets of standard paper. The directional cutting process involves pre-planned cutting paths and details, which have been programmed and stored by software engineers. A QR code corresponding to the desired cutting details is printed on the paper to be cut. Before the machine begins cutting, a removable device equipped with a cutting tool, a creasing tool, and a video inspection camera reads the QR code during inspection, retrieves the stored cutting details and cutting path, and then executes the program to perform cutting, creasing, and other tasks until the job is complete.

[0003] Among them, the single-sheet machine's paper pressing system presses the paper when conveying it. However, the existing paper pressing system has no adjustable force function, and it often appears too tight or too loose. Excessive pressure will have a certain destructive effect on the paper or cause paper jams, and too loose pressure will prevent the paper from being conveyed. Therefore, it is necessary to develop a paper pressing system that can easily adjust the pressure to meet market demand. Summary of the Invention

[0004] The purpose of the present invention is to provide an autonomous adjustment mechanism for the paper pressing system of an adsorption-type single-sheet machine, which overcomes the shortcomings of the existing technology and uses multiple sets of adjustable compression springs to apply pressure to the end bearings of the upper paper pressing shaft assembly, and can be adjusted to a suitable clamping force as needed.

[0005] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:

[0006] The self-regulating mechanism of the adsorption-type sheet-fed press paper pressing system includes side wall panels, multiple independent upper press paper wheel shaft operating mechanisms, multiple sets of transmission swing arm assemblies, secondary transmission pulleys, primary transmission pulleys, motor mounting brackets, X-axis drive motors, upper press paper wheel shafts, lower press paper wheel shafts, and working platforms.

[0007] The lower paper pressing wheel shaft is installed in the working platform, and the working platform is installed on the side wall.

[0008] Each transmission swing arm assembly includes a bearing group, a screw shaft, a transmission swing arm, and a tensioning pulley. The screw shaft in the middle of the transmission swing arm is fastened to the side wall panel, and the transmission swing arm rotates around the screw shaft. The bearing group is set at the upper end of the transmission swing arm, and the tensioning pulley is set at the lower end of the transmission swing arm.

[0009] Each independent upper paper pressing wheel shaft operating mechanism includes a fixed plate, a pressure adjusting screw, a pressure spring, a limit sleeve, a guide column, and a V-shaped slider. The fixed plate is installed on the outside of the side wall panel, and the working platform is installed on the inside of the side wall panel. The working platform is located at one end where the V-shaped slider is provided and extends to the outside of the side wall panel to form a support platform. The top of the V-shaped slider is fixed between the fixed plate and the support platform by a pressure adjusting screw, a pressure spring, a limit sleeve and a guide column. Multiple upper paper pressing wheel shafts form a group. The end of a group of upper paper pressing wheel shafts extends out of the side wall panel and is fixed to the same V-shaped slider through a bearing. Transmission swing arm assemblies are provided on both sides of the V-shaped slider. The transmission swing arm assemblies on both sides are symmetrically installed and the bearing group is pressed against the side of the V-shaped slider to form a clamping shape.

[0010] The end of the upper paper pressing wheel shaft extends out of the V-shaped slider and is provided with a secondary transmission pulley. The primary transmission pulley is arranged on the side wall panel and is located below the tensioning wheel. The secondary transmission pulley is connected to the tensioning wheel and the primary transmission pulley through the secondary transmission belt. The primary transmission pulley is connected to the X-direction drive motor through the primary transmission belt.

[0011] When the workload increases during operation, it is necessary to reduce the pressure of the upper paper pressing wheel shaft on the lower pressing wheel so that the upper and lower rollers maintain an appropriate amount of pressure. At this time, the function of the mechanism begins to play a role.

[0012] As the workload increases, the tension of the secondary synchronous belt increases. The tension F1 of the secondary synchronous belt acts on the tensioning wheel, causing the transmission swing arm assembly to function. The tension F2 is applied to the V-shaped slider through the bearing group in the transmission swing arm assembly. The V-shaped slider generates an upward lift F3 due to the tension F2 on both sides. Under normal circumstances, the tension of the secondary synchronous belt is basically stable within a range, so the lift F3 is also basically stable within a controllable range. The lift F3 can offset the pressure from the upper paper pressing wheel shaft through calculation and matching, so that its pressure remains stable, thereby obtaining stable cutting quality.

[0013] The function of this mechanism is to automatically eliminate the problem of unexpected sudden increase in system load and keep the system relatively stable.

[0014] Furthermore, there are two groups of upper paper pressing wheel shaft operating mechanisms, each group of upper paper pressing wheel shaft operating mechanisms corresponds to two upper paper pressing wheel shafts, there are four secondary transmission pulleys, and there are two primary transmission pulleys.

[0015] Furthermore, the primary transmission pulley is an upper and lower movable tensioning pulley.

[0016] Furthermore, there are four groups of transmission swing arm assemblies, and every two groups of transmission swing arm assemblies form a complete clamping and tensioning mechanism.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Multiple sets of upper paper pressing wheel shafts and V-shaped sliders at both ends are installed as a whole. They can be moved up and down by four guide columns with linear bearings installed between the fixed plates on both sides and the working platform. Their movement is limited by the limit sleeve.

[0019] 2. Use multiple sets of adjustable compression springs to apply pressure to the end bearing of the upper paper pressing shaft assembly, which can be adjusted to the appropriate pressing force as needed;

[0020] 3. Use more integrated working platform components to reduce the impact of manufacturing precision issues on cutting quality;

[0021] 4. The X-axis drive system adopts a multi-stage synchronous pulley mechanism, which makes the equipment more compact and reduces costs; at the same time, it ensures the synchronous operation of multiple sets of paper pressing wheels;

[0022] 5. The function of this mechanism is to automatically eliminate the problem of unexpected sudden increase in system load and keep the system relatively stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the self-regulating mechanism of the paper pressing system of the adsorption-type single-sheet machine.

[0024] Figure 2 Indicates tension Figure 1 .

[0025] Figure 3 Indicates tension Figure 2 . DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] As shown in the figure, the self-regulating mechanism of the adsorption-type sheet-fed press paper pressing system of the present invention includes a side wall panel 1, multiple independent upper press wheel shaft operating mechanisms 2, multiple groups of transmission swing arm assemblies 3, secondary transmission pulleys 4, primary transmission pulleys 5, motor mounting brackets 6, X-axis drive motors 7, upper press wheel shafts 8, lower press wheel shafts 9, and a working platform 10.

[0028] The lower paper pressing wheel shaft 9 is installed in the working platform 10, and the working platform 10 is installed on the side wall panel 1.

[0029] Each transmission swing arm assembly 3 includes a bearing group 31, a screw shaft 32, a transmission swing arm 33, and a tensioning wheel 34. The screw shaft in the middle of the transmission swing arm is fastened to the side wall plate, and the transmission swing arm rotates around the screw shaft. The bearing group is set at the upper end of the transmission swing arm, and the tensioning wheel is set at the lower end of the transmission swing arm.

[0030] Each independent upper paper pressing wheel shaft operating mechanism 2 includes a fixed plate 21, a pressure adjusting screw 22, a pressure spring 23, a limiting sleeve 24, a guide column 25, and a V-shaped slider 26. The fixed plate is installed on the outside of the side wall panel, and the working platform is installed on the inside of the side wall panel. The working platform is located at one end where the V-shaped slider is provided and extends to the outside of the side wall panel to form a support platform. The top of the V-shaped slider is fixed between the fixed plate and the support platform by a pressure adjusting screw, a pressure spring, a limiting sleeve and a guide column. Multiple upper paper pressing wheel shafts form a group. The end of a group of upper paper pressing wheel shafts extends out of the side wall panel and is fixed to the same V-shaped slider through a bearing. Transmission swing arm assemblies are provided on both sides of the V-shaped slider. The transmission swing arm assemblies on both sides are symmetrically installed and the bearing group is pressed against the side of the V-shaped slider to form a clamping shape.

[0031] The end of the upper paper pressing wheel shaft extends out of the V-shaped slider and is provided with a secondary transmission pulley. The primary transmission pulley is arranged on the side wall panel and is located below the tensioning wheel. The secondary transmission pulley 4 is connected to the tensioning wheel 34 and the primary transmission pulley 5 through the secondary transmission belt 41. The primary transmission pulley 5 is connected to the X-direction drive motor 7 through the primary transmission belt 51.

[0032] When the workload increases during operation, it is necessary to reduce the pressure of the upper paper pressing wheel shaft on the lower pressing wheel so that the upper and lower rollers maintain an appropriate amount of pressure. At this time, the function of the mechanism begins to play a role.

[0033] As the workload increases, the tension of the secondary synchronous belt increases. The tension F1 of the secondary synchronous belt acts on the tensioning wheel, causing the transmission swing arm assembly to function. The tension F2 is applied to the V-shaped slider through the bearing group in the transmission swing arm assembly. The V-shaped slider generates an upward lift F3 due to the tension F2 on both sides. Under normal circumstances, the tension of the secondary synchronous belt is basically stable within a range, so the lift F3 is also basically stable within a controllable range. The lift F3 can offset the pressure from the upper paper pressing wheel shaft through calculation and matching, so that its pressure remains stable, thereby obtaining stable cutting quality.

[0034] The function of this mechanism is to automatically eliminate the problem of unexpected sudden increase in system load and keep the system relatively stable.

[0035] Furthermore, there are two groups of upper paper pressing wheel shaft operating mechanisms, each group of upper paper pressing wheel shaft operating mechanisms corresponds to two upper paper pressing wheel shafts, there are four secondary transmission pulleys, and there are two primary transmission pulleys.

[0036] Furthermore, the primary transmission pulley is an upper and lower movable tensioning pulley.

[0037] Furthermore, there are four groups of transmission swing arm assemblies, and every two groups of transmission swing arm assemblies form a complete clamping and tensioning mechanism.

[0038] Furthermore, the guide posts are provided in a plurality and arranged between the fixed plate and the support platform. The V-shaped slider is mounted on the guide posts via linear bearings. The limiting sleeve is sleeved on the guide posts and positioned above the V-shaped slider. The lower end of the pressure-adjusting screw is positioned above the V-shaped slider, which is mounted on the fixed plate above. The pressure spring is sleeved on the pressure-adjusting screw and positioned between the fixed plate and the V-shaped slider.

[0039] Working Principle: When the workload increases during operation, the pressure of the upper paper-pressing roller shaft on the lower pressure roller needs to be reduced to maintain an appropriate amount of pressure on the upper and lower rollers. This is when the mechanism begins to function. As the workload increases, the tension of the secondary synchronous belt increases. The tension F1 of the secondary synchronous belt acts on the tensioning pulley, causing the transmission swing arm assembly to function. The bearing group in the transmission swing arm assembly applies tension F2 to the V-shaped slider. The V-shaped slider is subjected to tension F2 on both sides, which generates an upward lift F3. Under normal circumstances, the tension of the secondary synchronous belt is basically stable within a range, so the lift F3 is also basically stable within a controllable range. The lift F3 can offset the pressure from the upper paper-pressing roller shaft through calculation and matching, so that its pressure remains stable, thereby achieving stable cutting quality. The function of this mechanism is to automatically eliminate the problem of unexpected load increases in the system and keep the system relatively stable.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. The self-regulating mechanism of the paper pressing system of the adsorption-type sheet-fed machine is characterized by: It includes side wall panels, multiple independent upper paper pressing wheel shaft operating mechanisms, multiple sets of transmission swing arm components, secondary transmission pulleys, primary transmission pulleys, motor mounting brackets, X-axis drive motors, upper paper pressing wheel shafts, lower paper pressing wheel shafts, and working platforms. The lower paper pressing wheel shaft is installed in the working platform, and the working platform is installed on the side wall panel. Each transmission swing arm assembly includes a bearing group, a screw shaft, a transmission swing arm, and a tensioning wheel. The middle screw shaft of the transmission swing arm is fastened to the side wall plate, and the transmission swing arm rotates around the screw shaft. The bearing group is arranged at the upper end of the transmission swing arm, and the tensioning wheel is arranged at the lower end of the transmission swing arm. The upper end of the V-shaped paper pressing wheel shaft is fixed to the side wall plate by a pressure-adjusting screw, a pressure spring, a limiting sleeve, a guide column, and a V-shaped slider. The fixing plate is installed on the outer side of the side wall plate, and the working platform is installed on the inner side of the side wall plate. The working platform is located at one end of the V-shaped slider and extends to the outside of the side wall plate to form a support platform. The upper part of the V-shaped slider is fixed between the fixing plate and the support platform by a pressure-adjusting screw, a pressure spring, a limiting sleeve and a guide column. A plurality of upper paper pressing wheel shafts form a group, and the ends of the upper paper pressing wheel shafts of a group extend out of the side wall plate and are fixed to the same V-shaped slider through bearings. Transmission swing arm assemblies are provided on both sides of the V-shaped slider, and the transmission swing arm assemblies on both sides are symmetrically installed and the bearing groups are pressed against the sides of the V-shaped slider to form a clamping shape. The end of the upper paper pressing wheel shaft extends out of the V-shaped slider and is provided with a secondary transmission pulley. The primary transmission pulley is arranged on the side wall panel and is located below the tensioning wheel. The secondary transmission pulley is connected to the tensioning wheel and the primary transmission pulley through a secondary transmission belt. The primary transmission pulley is connected to the X-direction drive motor through a primary transmission belt.

2. The self-regulating mechanism of the suction-type sheet-fed press system according to claim 1, characterized in that: There are two groups of upper paper pressing wheel shaft operating mechanisms, each group of upper paper pressing wheel shaft operating mechanisms corresponds to two upper paper pressing wheel shafts, there are four secondary transmission pulleys, and there are two primary transmission pulleys.

3. The self-regulating mechanism of the suction-type sheet-fed press system according to claim 1, characterized in that: The first-level transmission pulley is an upper and lower movable tensioning pulley.

4. The self-regulating mechanism of the suction-type sheet-fed press system according to claim 1, characterized in that: There are four groups of transmission swing arm assemblies, and every two groups of transmission swing arm assemblies form a complete clamping and tensioning mechanism.

5. The self-regulating mechanism of the suction-type sheet-fed press system according to claim 1, characterized in that: There are several guide columns, which are arranged between the fixed plate and the support platform. The V-shaped slider is installed on the guide column through a linear bearing. The limiting sleeve is sleeved on the guide column and is located above the V-shaped slider.

6. The self-regulating mechanism of the paper pressing system of the adsorption-type sheet-fed machine according to claim 1, characterized in that: The lower end of the pressure regulating screw is arranged above the V-shaped slider, and the upper end is mounted on the fixed plate. The pressure spring is sleeved on the pressure regulating screw and is located between the fixed plate and the V-shaped slider.

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