Hob mechanism capable of preventing paper jamming
By introducing a grinding and adjustment component into the rotary cutter mechanism, the problem of blade dulling after prolonged use is solved, enabling efficient and flexible cutting to adapt to different paper width requirements and avoiding paper jams.
Patent Information
- Application Number
- CN202520205116.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The existing roller cutter mechanism suffers from blade dulling after prolonged use, leading to a complex process for replacing the cutting blade, which affects cutting quality and efficiency. Furthermore, it cannot flexibly adjust the roller spacing, failing to meet the cutting needs of different widths.
An anti-jamming roller cutter mechanism was designed, which includes a sharpening cutting blade, a grinding component, and an adjustment component. The grinding component keeps the roller cutter sharp, and the adjustment component adjusts the roller cutter spacing to achieve automatic grinding and flexible cutting.
It improves cutting quality and efficiency, reduces the frequency of cutting blade replacement, adapts to different cutting width requirements, and avoids paper jams.
Smart Images
Figure CN223877109U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to printing machine technical field especially relates to a kind of anti paper jam hob mechanism. BACKGROUND
[0002] Anti paper jam hob mechanism is a kind of in paper processing equipment (such as printer, copying machine, paper cutter etc.), for preventing paper in cutting or transmission process appears paper jam phenomenon special mechanism, to improve the smoothness in paper processing process, thus need to use anti paper jam hob mechanism.
[0003] In prior art, hob is inevitably dull after long time continuous operation, once this condition occurs, new cutting knife needs to be replaced to maintain normal work, however, the process of replacing cutting knife is relatively complex, not only involves the disassembly and assembly of equipment, but also needs to carry out a series of debugging work, seriously reduces the cutting efficiency of paper;If not timely, it will affect cutting quality, resulting in uneven paper cutting edge, burr and other problems;Secondly, the existing hob mechanism cannot meet the cutting demand of different widths because it cannot flexibly adjust hob spacing, greatly reduces practicability.
[0004] In view of the above technical problems, a kind of anti paper jam hob mechanism is designed. INVENTION CONTENTS
[0005] In view of the problems existing in prior art, the utility model provides a kind of anti paper jam hob mechanism, has the advantage that sharpening cutting knife improves cutting quality;Flexibly adjust the spacing of cutting knife, solve the problem that in prior art, hob is inevitably dull after long time continuous operation, once this condition occurs, new cutting knife needs to be replaced to maintain normal work, however, the process of replacing cutting knife is relatively complex, not only involves the disassembly and assembly of equipment, but also needs to carry out a series of debugging work, seriously reduces the cutting efficiency of paper;If not timely, it will affect cutting quality, resulting in uneven paper cutting edge, burr and other problems;Secondly, the existing hob mechanism cannot meet the cutting demand of different widths because it cannot flexibly adjust hob spacing, greatly reduces practicability.
[0006] The utility model is realized in this way, a kind of anti paper jam hob mechanism, including processing table, the processing table one side is equipped with the paper guide wheel that is guided to paper, the paper guide wheel one side is equipped with the paper pressing assembly, the paper pressing assembly one side is equipped with the hob assembly that is cut to paper, the hob assembly one side is equipped with the adjusting assembly that adjusts hob spacing, the adjusting assembly is equipped with the polishing assembly that is polished to hob on, the paper pressing assembly, hob assembly and adjusting assembly are all set up on work table.
[0007] As the utility model is preferred, the processing table is equipped with a conveying belt for transporting paper, and the conveying belt is located below the paper guide wheel and the paper pressing assembly.
[0008] As the utility model is preferred, the paper pressing assembly comprises two limiting columns, the two limiting columns are connected to the two sides of the processing table, a paper pressing plate for preventing paper from being raised is slidably arranged on the two limiting columns, a spring is arranged on each limiting column, and the two ends of the spring are fixedly connected with the paper pressing plate and the limiting column.
[0009] As the utility model is preferred, the hobbing assembly comprises two fixed blocks, the two fixed blocks are connected to the two sides of the processing table, a rotating shaft for driving the hob to rotate is connected to the two fixed blocks through two bearings, the outer surface of the rotating shaft is provided with a protrusion, a plurality of hobs are slidably arranged on the rotating shaft, the hobs are provided with a plurality of grooves matched with the protrusion, a first motor is installed on one side of the processing table, and the output shaft of the first motor is fixedly connected with one end of the rotating shaft.
[0010] As the utility model is preferred, the adjusting assembly comprises a fixed plate, the fixed plate is connected to the processing table, a plurality of sliding plates are slidably arranged on one side of the fixed plate, the number of the sliding plates is the same as that of the hobs, and a limiting pin is connected to each sliding plate.
[0011] As the utility model is preferred, threaded rods and slide rods are arranged on the two sides of the processing table, the two ends of the slide rods are fixedly connected with the processing table and the fixed plate, the two ends of the threaded rods are rotatably installed on the processing table and the fixed plate, a sliding block is arranged on the threaded rod and the slide rod, and the sliding block is in threaded connection with the threaded rod.
[0012] As the utility model is preferred, the two sliding blocks are connected through a moving plate, a plurality of sliding grooves are formed in the moving plate, the moving plate is sleeved on the limiting pins through the sliding grooves, a second motor is installed on the fixed plate, and the output shaft of the second motor is fixedly connected with one end of the threaded rod.
[0013] As the utility model is preferred, a polishing assembly is arranged below each sliding plate, the polishing assembly is located directly above the hob, each polishing assembly comprises a cutter shell, a plurality of grinding wheels for grinding the cutting edges of the hobs are arranged in the cutter shell, and the grinding wheels are connected with the cutter shell through connecting columns.
[0014] Compared with the prior art, the utility model has the advantages of the following:
[0015] 1、The utility model discloses a polishing assembly is arranged, realizes the purpose of polishing to the hob in the rotating process, makes the hob play the effect of the more you use, the sharper you are, reduces the frequency of replacing the cutting knife, and simultaneously also improves cutting quality and efficiency.
[0016] 2、The utility model discloses through the setting of adjusting assembly can adjust the spacing between the hob, in order to adapt to the demand of different cutting width.
[0017] 3、The utility model discloses through the setting of paper pressing assembly, to the paper, the effect of down pressure and anti -lifting, thereby avoiding the phenomenon that the paper appears to jam. ACCURACY OF DRAWINGS
[0018] Figure 1 It is the whole structure stereogram of the utility model;
[0019] Figure 2 It is the local structure stereogram of the utility model;
[0020] Figure 3 It is the hob assembly stereogram of the utility model;
[0021] Figure 4 It is the paper pressing assembly stereogram of the utility model.
[0022] In the drawing: 1, processing table;2, conveying belt;3, paper guide wheel;4, paper pressing assembly;5, hob assembly;6, adjusting assembly;7, polishing assembly;401, limit post;402, paper pressing board;403, spring;501, fixed block;502, rotating shaft;503, hob;504, first motor;601, fixed plate;602, sliding plate;603, limit pin;604, sliding rod;605, threaded rod;606, sliding block;607, moving plate;6071, sliding groove;608, second motor;701, cutter shell;702, connecting column;703, grinding wheel. DETAILED DESCRIPTION
[0023] In order to further understand the utility model content, characteristics and efficacy of the utility model, the following examples are cited, and the following is described in detail with the aid of drawings.
[0024] The structure of the utility model is described in detail below in combination with the drawings.
[0025] As Figures 1 to 4 The utility model discloses a hob mechanism of preventing paper jam, including processing table 1, the processing table 1 one side is equipped with the paper guide wheel 3 of guiding paper, the paper guide wheel 3 one side is equipped with the paper pressing assembly 4, the paper pressing assembly 4 one side is equipped with the hob assembly 5 of cutting paper, the hob assembly 5 one side is equipped with the adjusting assembly 6 of adjusting the spacing of hob 503, the adjusting assembly 6 is equipped with the polishing assembly 7 of polishing hob 503, and the paper pressing assembly 4, hob assembly 5 and adjusting assembly 6 are all set up on the work table.
[0026] The setting of paper guide wheel 3 plays the effect of transportation and orientation to paper, prevents the situation of paper jam in the process of cutting paper.
[0027] Further, the processing table 1 is provided with a conveying belt 2 for transporting paper, and the conveying belt 2 is located below the paper guide wheel 3 and the paper pressing assembly 4.
[0028] The paper is placed on the conveying belt 2, and under the cooperation of the paper guide wheel 3, the paper is effectively conveyed to the next working area, ensuring smooth transportation of the paper.
[0029] Further, the paper pressing assembly 4 includes two limiting columns 401 connected to the two sides of the processing table 1, and a paper pressing plate 402 for preventing paper from curling is slidably arranged on the two limiting columns 401, and a spring 403 is arranged on the outside of each limiting column 401 and fixedly connected to the paper pressing plate 402 and the limiting column 401.
[0030] It should be noted that through the arrangement of the limiting column 401, the paper pressing plate 402 and the spring 403, the paper conveyed from the previous working area is pressed down, which has the effect of flattening and preventing the paper from curling, thereby effectively preventing paper jamming.
[0031] Further, the hob assembly 5 includes two fixed blocks 501 connected to the two sides of the processing table 1, and a rotating shaft 502 for driving the rotation of the hob 503 is connected to the two fixed blocks 501 through two bearings, the rotating shaft 502 is provided with a protrusion on the outer surface, and a plurality of hobs 503 are slidably arranged on the rotating shaft 502, the hobs 503 are provided with a convex groove matched with the protrusion, and a first motor 504 is installed on one side of the processing table 1, and the output shaft of the first motor 504 is fixedly connected to one end of the rotating shaft 502.
[0032] It should be noted that the first motor 504 drives the rotating shaft 502 to rotate, and under the cooperation of the protrusion and the convex groove, a plurality of hobs 503 are synchronously driven to rotate, so that the paper can be efficiently cut.
[0033] Further, the adjusting assembly 6 includes a fixed plate 601 connected to the processing table 1, and a plurality of sliding plates 602 are slidably arranged on one side of the fixed plate 601, the number of sliding plates 602 is the same as that of the hobs 503, and a limiting pin 603 is connected to each sliding plate 602.
[0034] Threaded rods 605 and slide rods 604 are arranged on the two sides of the processing table 1, the two ends of the slide rod 604 are fixedly connected to the processing table 1 and the fixed plate 601, the two ends of the threaded rod 605 are rotatably installed on the processing table 1 and the fixed plate 601, and slide blocks 606 are arranged on the threaded rod 605 and the slide rod 604, and the slide blocks 606 are threadedly connected to the threaded rod 605.
[0035] Two sliders 606 are connected through a moving plate 607, a plurality of sliding grooves 6071 are formed in the moving plate 607, the moving plate 607 is sleeved on the plurality of limiting pins 603 through the plurality of sliding grooves 6071, a second motor 608 is installed on the fixed plate 601, and one end of a threaded rod 605 is fixedly connected with an output shaft of the second motor 608.
[0036] The threaded rod 605 is driven to rotate by the second motor 608, the moving plate 607 is driven to move upwards or downwards under the cooperation of the two sliders 606, and the plurality of sliding plates 602 fixedly connected with the limiting pins 603 are driven to slide through the arrangement of the sliding grooves 6071, so that the purpose of adjusting the spacing between the sliding plates 602 can be achieved.
[0037] Further, each sliding plate 602 is provided with a grinding assembly 7 below, and the grinding assembly 7 is located directly above the hob 503.
[0038] It can be known that the grinding wheel 703 is provided with a rotating groove matched with the hob 503, the size of the rotating groove is just enough to allow the hob 503 to rotate, the rotating groove can also prevent the hob 503 from shaking during rotation, and the rotating groove also has the effect of tightly clamping the hob 503. Figure 2 During the rotating process of the hob 503, the grinding wheel 703 grinds the cutting edge of the hob 503, so that the purpose of the hob 503 becoming sharper with use is achieved, and the sharpness of the hob 503 and the cutting quality are improved.
[0039] When the sliding plate 602 moves, the cutter shell 701 is driven to move synchronously, each hob 503 is driven to move under the cooperation of the connecting column 702 and the grinding wheel 703, the purpose of adjusting the spacing of the hobs 503 is achieved, and the paper can be cut at any width, thereby improving the practicability.
[0040] The working principle of the utility model is as follows:
[0041] First, start the second motor 608 to drive the threaded rod 605 to rotate, under the cooperation of the two sliders 606, drive the moving plate 607 to move, through the sliding groove 6071 and the setting of the limiting pin 603, drive several sliding plates 602 to slide on the fixed plate 601, under the limiting of the grinding wheel 703, the hob 503 can be adjusted until the distance between the adjacent two hobs 503 is adjusted to the position of the cutting width, in this process, the hob 503 slides on the shaft 502; Then start the first motor 504, and place the paper to be processed on the conveyor belt 2, under the cooperation of the paper guide wheel 3, the paper is conveyed to the lower side of the hob assembly 5 through the paper pressing assembly 4, the paper pressing plate 402 plays the effect of pressing and preventing the paper from lifting, avoiding paper jam;
[0042] During the rotation of the hob 503, the grinding wheel 703 plays the effect of grinding the hob 503, so that the hob 503 is sharper, and the cutting quality is improved.
[0043] In summary: the paper jam prevention hob mechanism, through the setting of the paper pressing assembly 4, plays the effect of pressing and preventing the paper from lifting, so as to avoid the phenomenon of paper jam; Through the setting of the adjusting assembly 6, the distance between the hobs 503 can be adjusted to adapt to the demand of different cutting widths; Through the setting of the grinding assembly 7, the purpose of grinding the hob 503 in the rotation process is realized, so that the effect of the more you use, the sharper the hob 503 is, the frequency of replacing the cutting knife is reduced, and the cutting quality and efficiency are improved.
[0044] It should be noted that in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A mechanism for preventing paper jamming of a hob, comprising a processing table (1), characterized in that: The processing table (1) one side is equipped with the paper guide wheel (3) that paper is guided, the paper guide wheel (3) one side is equipped with the paper pressing assembly (4), the paper pressing assembly (4) one side is equipped with the hobbing cutter assembly (5) that paper is cut, the hobbing cutter assembly (5) one side is equipped with the adjusting assembly (6) that the distance between hobbing cutter (503) is adjusted, the adjusting assembly (6) is equipped with the grinding assembly (7) that the hobbing cutter (503) is ground on, the paper pressing assembly (4), hobbing cutter assembly (5) and adjusting assembly (6) are all set up on the workbench.
2. A mechanism for preventing paper jamming with a hob as claimed in claim 1, characterized in that: The processing table (1) is equipped with the conveying belt (2) for transporting paper, the conveying belt (2) is located below the paper guide wheel (3) and the paper pressing assembly (4).
3. A mechanism for preventing paper jamming with a hob as claimed in claim 1, characterized in that: The paper pressing assembly (4) includes two limit posts (401), two limit posts (401) are connected on both sides of the processing table (1), a paper pressing plate (402) is slidably sleeved on two limit posts (401) to prevent paper from being raised, a spring (403) is sleeved on each limit post (401), and both ends of the spring (403) are fixedly connected with the paper pressing plate (402) and the limit post (401).
4. A mechanism for preventing paper jamming with a hob as claimed in claim 1, characterized in that: The hobbing cutter assembly (5) includes two fixed blocks (501), two fixed blocks (501) are connected with both sides of the processing table (1), two fixed blocks (501) are connected with a rotating shaft (502) for driving the hobbing cutter (503) to rotate through two bearings, the rotating shaft (502) is provided with a protrusion on the outer surface, a plurality of hobbing cutters (503) are slidably arranged on the rotating shaft (502), the hobbing cutter (503) is provided with a convex groove matched with the protrusion, and a first motor (504) is installed on one side of the processing table (1). The output shaft of the first motor (504) is fixedly connected with one end of the rotating shaft (502).
5. A mechanism for preventing paper jamming with a hob as claimed in claim 4, characterized in that: The adjusting assembly (6) includes a fixed plate (601), the fixed plate (601) is connected with the processing table (1), a plurality of sliding plates (602) are slidably arranged on one side of the fixed plate (601), the number of sliding plates (602) is the same as that of the hobbing cutter (503), and a limit pin (603) is connected to each sliding plate (602).
6. A mechanism for preventing paper jamming with a hob as claimed in claim 5, characterized in that: Threaded rods (605) and slide rods (604) are arranged on both sides of the processing table (1), both ends of the slide rod (604) are fixedly connected with the processing table (1) and the fixed plate (601), both ends of the threaded rod (605) are rotatably installed on the processing table (1) and the fixed plate (601), and slide blocks (606) are arranged on the threaded rod (605) and the slide rod (604). The slide block (606) is in threaded connection with the threaded rod (605).
7. A mechanism for preventing paper jamming with a hob as claimed in claim 6, characterized in that: Two slide blocks (606) are connected through a moving plate (607), a plurality of sliding grooves (6071) are formed in the moving plate (607), the moving plate (607) is sleeved on the plurality of limit pins (603) through the plurality of sliding grooves (6071), a second motor (608) is installed on the fixed plate (601), and the output shaft of the second motor (608) is fixedly connected with one end of the threaded rod (605).
8. A mechanism for preventing paper jamming with a hob as claimed in claim 5, characterized in that: Each of the sliding plates (602) is provided with a grinding assembly (7) located directly above the rolling cutter (503), each of the grinding assemblies (7) comprises a cutter shell (701), a plurality of grinding wheels (703) for grinding the cutting edges of the rolling cutter (503) are arranged in the cutter shell (701), and the grinding wheels (703) are connected with the cutter shell (701) through connecting columns (702).