Paper feeding mechanism of character cutting machine

Abstract

The utility model relates to the technical field of character cutting machines, and discloses a paper feeding mechanism of a character cutting machine, which comprises the character cutting machine, a front supporting plate is arranged on one side in the character cutting machine, front supporting plate baffles for limiting paper are symmetrically arranged on the surface of the front supporting plate, and the paper feeding mechanism is arranged at the bottom end of the front supporting plate. The paper feeding mechanism comprises a paper feeding shaft installed on one side in the character carving machine, three one-way bearings distributed at equal intervals are fixedly installed on the outer wall of the paper feeding shaft, and the outer portions of the one-way bearings are connected with paper feeding wheel sleeves. Through the arrangement of the one-way bearing, the rotating state of the front pressing roller in the paper feeding process can be flexibly adjusted according to the actual situation, the one-way bearing is matched with the paper feeding action of the paper feeding wheel, during normal paper feeding, the front pressing roller can actively drive paper to move forwards, and when the paper feeding speed is different from the rotating speed of the front pressing roller, the paper feeding speed is adjusted. The one-way bearing can ensure that the rotation of the front pressing roller does not cause adverse effects on the paper, and the problem that the paper is stopped or partially arched and the like, so that the flatness and the smoothness of paper feeding are influenced is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lettering machine, especially a paper feeding mechanism of lettering machine. BACKGROUND

[0002] In modern graphics production, sign processing and other industries, the lettering machine is a commonly used equipment, and its paper feeding mechanism plays a crucial role in the efficiency and quality of the entire lettering work. However, the paper feeding mechanism of the traditional lettering machine has many shortcomings and cannot meet the increasing production demand.

[0003] In terms of paper feeding stability, the traditional lettering machine paper feeding mechanism often lacks effective mechanisms to deal with the speed difference problem that may occur during the paper feeding process. Usually, the paper feeding action mainly relies on a single power-driven paper feeding wheel or similar components to rotate, and the paper is transported through friction with the paper. However, in the actual paper feeding process, due to the different paper materials and thicknesses, as well as the wear and tear of the paper feeding mechanism components, transmission accuracy and other factors, it is easy to cause the paper feeding speed to not match the actual moving speed of the paper. For example, when the paper feeding speed of the paper feeding wheel is too fast, and the paper cannot move in time due to its own characteristics (such as being thicker, having a larger surface friction, etc.), the paper will stop moving, causing paper jamming and affecting the continuity of the lettering work; on the contrary, if the paper feeding speed is too slow, the paper may accumulate at the paper feeding wheel, also causing paper jamming or uneven paper feeding. Moreover, the traditional paper feeding mechanism cannot flexibly adjust the rotation state of the related components when facing these speed differences, making it difficult to ensure the flatness of the paper and seriously affecting the efficiency and quality of the lettering work.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the utility model, and therefore, it may include prior art known by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problem that the paper feeding action usually relies on a single power-driven paper feeding wheel or similar components to rotate, and the paper is transported through friction with the paper. However, in the actual paper feeding process, due to the different paper materials and thicknesses, as well as the wear and tear of the paper feeding mechanism components, transmission accuracy and other factors, it is easy to cause the paper feeding speed to not match the actual moving speed of the paper, the utility model provides a paper feeding mechanism of lettering machine.

[0006] The paper feeding mechanism of the lettering machine provided by the utility model adopts the following technical solutions:

[0007] The utility model provides a paper feeding mechanism of a lettering machine, comprising a lettering machine, a front supporting plate is installed on one side of the inside of the lettering machine, a front supporting plate baffle for limiting paper is symmetrically arranged on the surface of the front supporting plate, a paper feeding mechanism is installed at the bottom end of the front supporting plate, the paper feeding mechanism comprises a paper feeding shaft installed on one side of the inside of the lettering machine, three one-way bearings are fixedly installed on the outer wall of the paper feeding shaft, a paper feeding wheel sleeve is connected to the outside of the one-way bearings, a paper feeding wheel is installed on the outside of the paper feeding wheel sleeve, and a front compression roller for assisting paper feeding is installed in the inside of the front end of the lettering machine.

[0008] Preferably, the outer wall of one side of the lettering machine is symmetrically rotatably installed with a belt pulley, a synchronous belt is sleeved on the outside of the two belt pulleys, a paper feeding motor is fixedly installed on the outer wall of the lettering machine, and the output end of the paper feeding motor is in transmission connection with one of the belt pulleys.

[0009] Preferably, the output end of one of the belt pulleys penetrates the inner wall of the lettering machine and is in transmission with one end of the paper feeding shaft, spring pins are symmetrically arranged on the outer wall of one end of the paper feeding shaft, and the spring pins are matched with the belt pulley.

[0010] Preferably, the other end of the paper feeding shaft extends into the lettering machine and is rotatably installed with a bearing one, the bearing one is connected with the inner wall of the lettering machine, and a fall-preventing retainer ring one is arranged on the outside of the bearing one.

[0011] Preferably, a compression spring is sleeved on the inside of the bearing one, and a retainer ring two is fixedly arranged on the end of the compression spring away from the bearing one.

[0012] Preferably, bearings two are installed in the inside of both ends of the paper feeding wheel, the bearings two are rotatably connected with the outer wall of the paper feeding shaft, paper feeding shaft spacers are connected with the outer walls of the two bearings two, and a stop block for paper feeding wheel displacement is fixedly arranged on the outside of the paper feeding shaft spacer.

[0013] Preferably, a paper feeding supporting plate is detachably installed at the bottom of the front end of the lettering machine, a group of sliding grooves are formed in the inner wall of the front end of the paper feeding supporting plate, and movable sliding baffles are installed in the sliding grooves.

[0014] In summary, the utility model has the following beneficial technical effects:

[0015] 1. The combination of the paper feeding shaft, the paper feeding wheel and the one-way bearing, the setting of the one-way bearing enables the rotating state of the front compression roller in the paper feeding process to be flexibly adjusted according to actual conditions, and the paper feeding action of the paper feeding wheel is mutually matched, when the paper is normally fed, the front compression roller can actively drive the paper to advance, when the difference between the paper feeding speed and the rotating speed of the front compression roller occurs, the one-way bearing can ensure that the rotation of the front compression roller will not adversely affect the paper, and the problems of paper stagnation or local arching of the paper affecting the flatness and the smoothness of the paper feeding are avoided, and the stability and the efficiency of the paper feeding are further ensured.

[0016] 2. The front pressure roller rotates to assist in conveying paper material outwards to the paper feeding tray for stacking. The sliding distance of the sliding baffle within the chute is pre-adjusted according to the size of the paper material, thus limiting one end of the paper material and ensuring it is neatly stacked on the paper feeding tray. The sliding baffle provides a guarantee for neat and standardized stacking of paper on the paper feeding tray. By adjusting the position of the sliding baffle according to the paper size, it ensures that paper of different sizes can be neatly arranged on the paper feeding tray, facilitating subsequent retrieval or further processing, and improving the cleanliness and efficiency of the work area. Attached Figure Description

[0017] Figure 1 This is a front view of the paper feeding mechanism of a lettering machine according to an embodiment of the utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the paper feeding mechanism of a lettering machine according to an embodiment of the utility model.

[0019] Figure 3 This is a schematic diagram of the paper feeding shaft in an embodiment of the utility model.

[0020] Figure 4 This is a cross-sectional view of the paper feeding shaft in an embodiment of the utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Retaining ring one; 2. Bearing one; 3. Compression spring; 4. Retaining ring two; 5. Stop block; 6. Paper feed shaft spacer; 7. Paper feed roller; 8. Bearing two; 9. Paper feed roller sleeve; 10. One-way bearing; 11. Spring pin; 12. Paper feed shaft; 13. Front support plate; 14. Front support plate baffle; 15. Paper feed motor; 16. Synchronous belt; 17. Front pressure roller; 18. Engraving machine; 19. Paper feed support plate; 20. Sliding baffle; 21. Slide groove. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-4 The present invention will be described in further detail below.

[0023] This utility model discloses a paper feeding mechanism for an engraving machine. (Refer to...) Figures 1-2, including the engraver 18, one side of the inside of the engraver 18 is mounted with the front plate 13, the surface of the front plate 13 is symmetrically provided with the front plate baffle 14 for limiting the paper, the paper material is placed on the front plate 13 in advance, then the front plate baffle 14 is adjusted to be close to the two sides of the paper material and is pressed tightly according to the size of the paper material, so that the paper material can be placed and preliminarily fixed quickly and accurately on the engraver 18, the front plate 13 provides a stable placement platform for the paper, and the front plate baffle 14 can be flexibly adjusted according to the actual size of the paper, so that different sizes of paper can be tightly pressed, avoiding the paper from being deviated or shaken in the subsequent paper feeding process, and laying a foundation for accurate paper feeding. The bottom end of the front plate 13 is provided with a paper feeding mechanism.

[0024] As shown in Figures 3-4 , the paper feeding mechanism includes a paper feeding shaft 12 mounted on one side of the inside of the engraver 18, three one-way bearings 10 are fixedly installed on the outer wall of the paper feeding shaft 12, the outer part of the one-way bearing 10 is connected with a paper feeding wheel sleeve 9, the outer part of the paper feeding wheel sleeve 9 is installed with a paper feeding wheel 7, the inside of both ends of the paper feeding wheel 7 is installed with a bearing two 8, the bearing two 8 is rotatably connected with the outer wall of the paper feeding shaft 12, the outer wall of the two bearing two 8 is connected with a paper feeding shaft spacer sleeve 6, the outer side of the paper feeding shaft spacer sleeve 6 is fixedly provided with a stop block 5 for displacement of the paper feeding wheel 7, the inside of the front end of the engraver 18 is provided with a front pressure roller 17 for assisting paper feeding, the paper material is sequentially fed to the front pressure roller 17 by the friction force between the paper feeding wheel 7 and the paper material, the one-way bearing 10 is arranged to flexibly adjust the rotation state of the front pressure roller 17 during the paper feeding process according to the actual situation, and cooperates with the paper feeding action of the paper feeding wheel 7. When the paper is fed normally, the front pressure roller 17 can actively drive the paper to advance, when the paper feeding speed and the rotation speed of the front pressure roller 17 are different, the one-way bearing 10 can ensure that the rotation of the front pressure roller 17 will not cause adverse effects on the paper, avoiding the problems of paper stagnation or paper arching which affect the flatness and smoothness of the paper, further ensuring the stability and efficiency of the paper feeding.

[0025] In the application, the outer wall of one side of the lettering machine 18 is symmetrically rotatably installed with a belt pulley, the outer parts of the two belt pulleys are sleeved with a synchronous belt 16, the outer wall of the lettering machine 18 is fixedly installed with a paper feeding motor 15, the output end of the paper feeding motor 15 is in transmission connection with one of the belt pulleys, the output end of the one of the belt pulleys penetrates through the inner wall of the lettering machine 18 and is in transmission with one end of the paper feeding shaft 12, the outer wall of one end of the paper feeding shaft 12 is symmetrically provided with a spring pin 11, the spring pin 11 is matched with the belt pulley, and the spring pin 11 is arranged to prevent the paper feeding shaft 12 from falling off or rotating by itself and can achieve good positioning effect. The paper feeding motor 15 serves as a power source, drives the paper feeding shaft 12 and the paper feeding wheel 7 to rotate stably and efficiently through the transmission of the synchronous belt 16 and the belt pulley, and continuous paper feeding of the paper materials is realized. This transmission mode has high reliability and stability, can ensure that the paper is transported at a uniform speed and in a stable state, reduces the problems of lettering failure or paper jam caused by unstable paper feeding, and improves the efficiency of lettering work.

[0026] In the application, the other end of the paper feeding shaft 12 extends into the lettering machine 18 and is rotatably installed with a bearing one 2, the bearing one 2 is connected with the inner wall of the lettering machine 18, supports one end of the paper feeding shaft 12, and the outer side of the bearing one 2 is provided with an anti-falling retaining ring one 1, and the inner side of the bearing one 2 is sleeved with a compression spring 3, and the end of the compression spring 3 away from the bearing one 2 is fixedly provided with a retaining ring two 4, which is convenient for installation and disassembly.

[0027] In the application, the bottom of the front end of the lettering machine 18 is detachably installed with a paper feeding supporting plate 19, a group of sliding grooves 21 are formed in the inner wall of the front end of the paper feeding supporting plate 19, and a movable sliding baffle 20 is installed in the sliding grooves 21, the arrangement of the sliding baffle 20 provides guarantee for the neat and standard arrangement of the paper on the paper feeding supporting plate 19, and by adjusting the position of the sliding baffle 20 according to the size of the paper, it can be ensured that different sizes of paper can be arranged neatly on the paper feeding supporting plate 19, which is convenient for subsequent taking or further processing, and improves the neatness of the working area and the working efficiency.

[0028] The implementation principle of the paper feeding mechanism of the lettering machine in the embodiment of the utility model is as follows:

[0029] In operation, the engraver 18 is opened, the paper material is placed on the front supporting plate 13 first, then the front supporting plate baffle 14 is adjusted according to the size of the paper material, the two sides of the paper material are pressed, the paper material is naturally dropped into the paper feeding mechanism by pressing the front supporting plate 13, at this time, the paper feeding motor 15 works, the two pulley wheels are rotated clockwise through the synchronous belt 16, the paper feeding shaft 12 is driven to rotate clockwise, at this time, the paper feeding wheel 7 rotates and contacts the paper material, the paper material is sequentially and forwardly conveyed to the front pressing roller 17 by the friction force between the paper feeding wheel 7 and the paper material, when the paper feeding motor 15 rotates clockwise, the front pressing roller 17 does not rotate by the counterclockwise one-way bearing 10, at this time, the front pressing roller 17 is driven to rotate, the paper material is forwardly driven, when the rotation speed of the front pressing roller 17 is faster than the paper feeding speed, the front pressing roller 17 is rotated by the clockwise one-way bearing 10, and then the paper material is not caused to be supported or arched, the paper material is sequentially conveyed outward to the paper feeding supporting plate 19 by the rotation of the front pressing roller 17, and the sliding distance of the sliding baffle 20 in the sliding groove 21 is adjusted according to the size of the paper material, so that the sliding baffle 20 limits one end of the paper material, and the paper material is neatly stacked in the paper feeding supporting plate 19.

[0030] Finally, it should be pointed out that: first, in the description of the utility model, it should be pointed out that, unless otherwise provided and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0031] Secondly: the utility model discloses the embodiment of the drawings, only relates to the structure involved in the embodiment of the utility model, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0032] Finally: the above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0033] The above are the preferred embodiments of the utility model, and not limited to the protection scope of the utility model, therefore: any equivalent change made according to the structure, shape, principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A paper feed mechanism for an engraver, comprising an engraver (18), characterized in that: The front of the engraver (18) is internally provided with a front supporting plate (13), the surface of the front supporting plate (13) is symmetrically provided with a front supporting plate baffle (14) for limiting paper, the bottom end of the front supporting plate (13) is provided with a paper feeding mechanism, the paper feeding mechanism comprises a paper feeding shaft (12) internally mounted on one side of the engraver (18), the outer wall of the paper feeding shaft (12) is fixedly provided with three one-way bearings (10) distributed at equal intervals, the outer part of the one-way bearing (10) is connected with a paper feeding wheel sleeve (9), the outer part of the paper feeding wheel sleeve (9) is provided with a paper feeding wheel (7), the front end of the engraver (18) is internally provided with a front compression roller (17) for assisting paper feeding.

2. A paper feed mechanism for a lettering machine as claimed in claim 1, wherein: The outer wall of one side of the engraver (18) is symmetrically rotatably provided with a belt pulley, the outer part of the two belt pulleys is provided with a synchronous belt (16), the outer wall of the engraver (18) is fixedly provided with a paper feeding motor (15), and the output end of the paper feeding motor (15) is in transmission connection with one of the belt pulleys.

3. A paper feed mechanism for a lettering machine as claimed in claim 2, wherein: The output end of one of the belt pulleys penetrates the inner wall of the engraver (18) and is in transmission with one end of the paper feeding shaft (12), the outer wall of one end of the paper feeding shaft (12) is symmetrically provided with a spring pin (11), and the spring pin (11) is matched with the belt pulley.

4. The paper feed mechanism of a lettering machine according to claim 1, wherein: The other end of the paper feeding shaft (12) extends into the engraver (18) and is rotatably provided with a bearing one (2), the bearing one (2) is connected with the inner wall of the engraver (18), and the outer side of the bearing one (2) is provided with an anti-falling baffle ring one (1).

5. A paper feed mechanism for a lettering machine as claimed in claim 4, wherein: The inner side of the bearing one (2) is provided with a compression spring (3), and the end of the compression spring (3) away from the bearing one (2) is fixedly provided with a baffle ring two (4).

6. A paper feed mechanism for a lettering machine as claimed in claim 1, wherein: The inner part of the paper feeding wheel (7) is rotatably provided with a bearing two (8), the outer wall of the bearing two (8) is rotatably connected with the paper feeding shaft (12), the outer wall of the two bearing two (8) is connected with a paper feeding shaft spacer sleeve (6), and the outer side of the paper feeding shaft spacer sleeve (6) is fixedly provided with a baffle block (5) for displacement of the paper feeding wheel (7).

7. The paper feed mechanism of a lettering machine according to claim 1, wherein: The bottom of the front end of the engraver (18) is detachably provided with a paper feeding supporting plate (19), a group of sliding grooves (21) are formed in the inner wall of the front end of the paper feeding supporting plate (19), and the inner part of the sliding groove (21) is provided with a movable sliding baffle (20).

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