Paper rubbing mechanism

Abstract

The utility model discloses a paper rubbing mechanism, which comprises a medium conveying channel, the lower pickup roller is arranged on the lower side of the medium conveying channel; the driving assembly is in driving connection with the lower pickup roller and is used for driving the lower pickup roller to rotate; and the first pressing block is arranged on the upper side of the medium conveying channel and is made of a wear-resistant material. The pressing block is arranged to replace a conveying wheel or a conveying roller in the prior art, conveying force is formed through the pressure of the pressing block and the lower pickup roller at the bottom, and compared with an existing scheme, the structure is simpler, cost is greatly reduced, reliability is high, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the field of printing equipment, in particular to a paper rubbing mechanism. Background Art

[0002] During the printing process, paper is one of the most important materials. Paper in the printing device is usually stored in a paper box. Most of the current paper boxes transport paper to the printing mechanism through transmission mechanisms such as rubber rollers and pickup rollers. However, during the transmission process, it is very easy for the friction between the paper and the pickup roller to be insufficient, which can cause paper jams and other undesirable phenomena, thus affecting printing. In particular, when there is not much paper left in the paper box, the printing paper cannot fully contact the pickup roller, and it is difficult for the pickup roller to transport the paper normally.

[0003] Therefore, how to solve the above problems has become a technical problem that needs to be solved urgently in the industry. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the deficiencies in the prior art, the utility model provides a paper rubbing mechanism.

[0005] Technical solution: A paper rubbing mechanism, comprising:

[0006] Medium conveying channel;

[0007] A lower paper pickup wheel disposed at the lower side of the medium conveying channel;

[0008] A driving assembly connected to the lower pickup wheel is used to drive the lower pickup wheel to rotate;

[0009] A first pressing block is arranged on the upper side of the medium conveying channel, and the pressing block is made of wear-resistant material.

[0010] Furthermore, the lower pickup wheels are configured to be multiple and parallel and concentrically arranged, and the outer edge surface of each lower pickup wheel is provided with a wear-resistant material layer.

[0011] Furthermore, the medium conveying channel is arranged on a machine platform, the lower paper pickup wheel is buried under the machine platform surface, and movable baffles are arranged on both sides of the medium conveying channel.

[0012] Furthermore, each of the baffles extends toward the rear side of the machine platform and forms a receiving cavity for receiving a plurality of stacked media, and a second pressing block is arranged in the receiving cavity for applying downward pressure to the media.

[0013] Furthermore, the machine platform is also provided with a mounting frame, the mounting frame is provided with a bracket, the bottom of the bracket is fixedly connected to the first pressure block, the top of the bracket is also provided with a threaded hole, and the mounting frame is provided with a first adjusting bolt and a second adjusting bolt, which correspond to the threaded hole and the top of the bracket respectively, and are used to adjust the height of the first pressure block.

[0014] Furthermore, a horizontal screw rod and a guide column are arranged on the mounting frame in the vertical direction, and each corresponding baffle plate is provided with a nut for being sleeved on the screw rod and a guide sleeve for being sleeved on the guide column. The thread directions of the nuts on each baffle plate are opposite, and the screw rod is movably connected to the mounting frame; when the screw rod is rotated, each baffle plate moves away from or approaches each other at the same time.

[0015] Furthermore, the second pressing block is configured such that the bottom surface gradually decreases in height toward the medium conveying direction, a roller is movably connected to the lowest point of the bottom surface of the second pressing block, and a plurality of driving rollers for driving the medium conveying are provided below the accommodating cavity.

[0016] Beneficial effect: The paper picking mechanism of the utility model replaces the conveying wheel or conveying roller in the prior art by providing a pressure block, and utilizes the pressure of the pressure block and the lower paper picking wheel at the bottom to form a conveying force. Compared with the existing scheme, the structure is simpler, the cost is greatly reduced, and it has strong reliability and longer service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the paper picking mechanism of the utility model;

[0018] Attached Figure 2 for Figure 1 The exploded structural diagram of the paper picking mechanism shown;

[0019] Attached Figure 3 for Figure 1 A cross-sectional schematic diagram of the paper picking mechanism shown;

[0020] Attached Figure 4 for Figure 1 The diagram shows the assembly of the first pressing block and the lower paper pickup wheel of the paper pickup mechanism. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] It should be noted that the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] See also Figure 1-4 The embodiment 1 of the paper pickup mechanism of the utility model shown comprises: a medium conveying channel 11, a lower paper pickup wheel 3, a driving assembly 6 and a first pressing block 2. The lower paper pickup wheel 3 is arranged at the lower side of the medium conveying channel 11, and the driving assembly 6 is driven and connected to the lower paper pickup wheel 3 to drive the lower paper pickup wheel 3 to rotate. The first pressing block 2 is arranged at the upper side of the medium conveying channel 11, and the pressing block is made of wear-resistant material. Preferably, existing wear-resistant materials such as POM material, TPU material, etc. can be used.

[0024] By setting a pressure block to replace the conveying wheel or conveying roller in the prior art, the pressure of the pressure block and the lower paper picking wheel 3 at the bottom are used to form a conveying force. Compared with the existing solution, the structure is simpler, the cost is greatly reduced, and the reliability is strong and the service life is longer.

[0025] Specifically, the lower pickup rollers 3 are configured to be parallel and concentrically arranged in plurality, and a wear-resistant material layer is provided on the outer edge surface of each lower pickup roller 3. Similarly, existing wear-resistant materials such as POM material, TPU material, etc. can be used, which will not be described in detail here.

[0026] The medium conveying channel 11 is arranged on a machine platform 1, the lower pickup roller 3 is buried under the table of the machine platform 1, and movable baffles 4 are arranged on both sides of the medium conveying channel 11. The baffles 4 are used to control the left and right deviation of the medium conveying process to ensure the stability of the conveying process.

[0027] Moreover, each of the baffles 4 extends toward the rear side of the machine 1 and forms a receiving cavity for receiving a plurality of stacked media, and a second pressing block 7 is arranged in the receiving cavity for applying downward pressure to the media. The receiving cavity serves as a temporary storage bin for the media, and the second pressing block 7 applies pressure to the media to compact the media to prevent the media from scattering.

[0028] In some preferred embodiments, the machine 1 is further provided with a mounting frame 5, on which a bracket 21 is provided, the bottom of the bracket 21 is fixedly connected to the first pressing block 2, a threaded hole 22 is further provided at the top of the bracket 21, and a first adjusting bolt 52 and a second adjusting bolt 51 are provided on the mounting frame 5, which correspond to the threaded hole 22 and the top of the bracket 21, respectively, and are used to adjust the height of the first pressing block 2. Specifically, the bottom of the first adjusting bolt 52 maintains a certain distance from the top of the bracket 21 to control the rising distance of the bracket 21, and the second adjusting bolt 51 is threadedly connected in the threaded hole 22 to prevent the bracket 21 from falling.

[0029] In some preferred embodiments, the mounting frame 5 is provided with a horizontal screw rod 53 and a guide column 54 in the vertical direction, and each of the corresponding baffles 4 is provided with a nut 55 for sleeved on the screw rod 53 and a guide sleeve 56 for sleeved on the guide column 54. The screw threads of the nuts 55 on each of the baffles 4 are opposite, and the screw rod 53 is movably connected to the mounting frame 5; when the screw rod 53 is rotated, each of the baffles 4 moves away from or approaches each other at the same time. Specifically, there are two guide columns 54, which are arranged on the upper and lower sides of the screw rod 53, and there are four corresponding guide sleeves 56, which are evenly arranged on the two baffles 4. By rotating the screw rod 53, the two baffles 4 can move away from or approach each other at the same time, so that the distance between the baffles 4 can be changed to meet the needs of different media. The cooperation of the guide sleeve 56 and the guide column 54 is used to control the linear stability of the position change of the baffle 4. It is more convenient to use the screw rod 53, and the structure is relatively simple and easy to manufacture.

[0030] The second pressing block 7 is configured such that the height of the bottom surface gradually decreases toward the medium conveying direction, thereby ensuring that the medium is gradually compressed during the medium conveying process. A roller 71 is movably connected to the lowest point of the bottom surface of the second pressing block 7, and a plurality of driving rollers 8 for driving the medium conveying are provided below the accommodating cavity. The medium is conveyed by the driving roller 8, and the roller 71 assists in stably conveying the medium into between the lower pickup roller 3 and the first pressing block 2.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A paper picking mechanism, characterized in that: include: Medium conveying channel; A lower paper pickup wheel disposed at the lower side of the medium conveying channel; A driving assembly connected to the lower pickup wheel is used to drive the lower pickup wheel to rotate; A first pressing block is arranged on the upper side of the medium conveying channel, and the pressing block is made of wear-resistant material.

2. The paper picking mechanism according to claim 1, characterized in that: The lower pickup wheels are configured to be multiple and parallel and concentrically arranged, and the outer edge surface of each lower pickup wheel is provided with a wear-resistant material layer.

3. The paper picking mechanism according to claim 2, characterized in that: The medium conveying channel is arranged on a machine platform, the lower paper pickup wheel is buried under the machine platform, and movable baffles are arranged on both sides of the medium conveying channel.

4. The paper picking mechanism according to claim 3, characterized in that: Each of the baffles extends toward the rear side of the machine platform and forms a receiving cavity for receiving a plurality of stacked media. A second pressing block is arranged in the receiving cavity for applying downward pressure to the media.

5. The paper picking mechanism according to claim 3, characterized in that: The machine platform is also provided with a mounting frame, on which a bracket is provided, the bottom of the bracket is fixedly connected to the first pressing block, the top of the bracket is also provided with a threaded hole, and the mounting frame is provided with a first adjusting bolt and a second adjusting bolt, which correspond to the threaded hole and the top of the bracket respectively, and are used to adjust the height of the first pressing block.

6. The paper picking mechanism according to claim 5, characterized in that: The mounting frame is provided with a horizontal screw rod and a guide column in the vertical direction, and each corresponding baffle is provided with a nut for being sleeved on the screw rod and a guide sleeve for being sleeved on the guide column. The thread directions of the nuts on each baffle are opposite, and the screw rod is movably connected to the mounting frame; when the screw rod is rotated, each baffle moves away from or approaches each other at the same time.

7. The paper picking mechanism according to claim 4, characterized in that: The second pressing block is configured such that the bottom surface gradually decreases in height toward the medium conveying direction, a roller is movably connected to the lowest point of the bottom surface of the second pressing block, and a plurality of driving rollers for driving the medium conveying are arranged below the accommodating cavity.

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