Paper limiting device

Abstract

The utility model discloses a paper limiting device which comprises a first guide rail arranged above or below a paper inlet, and a second guide rail arranged above or below the paper inlet and provided with a rack in the horizontal direction. The limiting stopper comprises a baffle connected to the first guide rail in a sliding mode, an ejection piece is arranged at the position, corresponding to the rack, of the baffle, the ejection piece is elastically connected with the baffle, and the ejection piece abuts against a tooth groove of the rack. The guide rail and the limiting stopper are arranged at the paper inlet, the rack on the guide rail is used for accurately positioning the position movement of the limiting stopper, meanwhile, the limiting stopper is used for limiting the paper, and compared with an existing scheme, the paper feeding device is simple in structure, low in cost and easy to produce and apply on a large scale.

Description

Technical Field

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

[0002] Printers are currently important office and production equipment, and the paper feed limiter that provides paper feed for printers is an important part of printers. The paper feed limiter of most popular printers on the market currently uses the baffle on the paper box as a limiter. However, this method is not very accurate in limiting the paper, which can easily cause the paper to deviate when entering the printer, resulting in paper jams.

[0003] Based on this, how to propose a paper limiting device to solve the above problems has become a technical problem that urgently needs to be solved 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 limiting device with more accurate limiting.

[0005] Technical solution: A paper limiting device, comprising:

[0006] A first guide rail disposed above or below the paper inlet, wherein a rack is disposed on the first guide rail in a horizontal direction;

[0007] The limiter comprises a baffle plate slidably connected to the first guide rail, wherein an ejector is provided on the baffle plate at a position corresponding to the rack, the ejector is elastically connected to the baffle plate, and the ejector is in contact with a tooth groove of the rack.

[0008] Furthermore, the baffle is provided with a first sliding portion for slidably connecting to the first guide rail, and the first sliding portion is provided with a through hole for accommodating the ejector corresponding to the rack, the ejector is arranged in the through hole, and the end of the ejector is elastically connected to the end of the through hole through an elastic member.

[0009] Further, the outer side of the first sliding portion is configured to extend in an arc shape toward the inner side of the paper inlet.

[0010] Furthermore, a second guide rail is provided on a side of the paper inlet away from the first guide rail, and a second sliding portion is provided on the baffle, and the second sliding portion is slidably connected to the second guide rail.

[0011] Furthermore, the outer side of the second sliding portion is configured to extend in an arc shape toward the inner side of the paper inlet.

[0012] Furthermore, there are two limiters, which are arranged opposite to each other at the paper entrance.

[0013] Furthermore, a first slide groove is provided below the first guide rail, a first component extending into the first slide groove is provided at the bottom end of the first sliding portion, and a barb is provided at the end of the first component.

[0014] Furthermore, a second slide groove is provided above the second guide rail, a second component extending into the second slide groove is provided at the bottom end of the second sliding portion, and a barb is provided at the end of the second component.

[0015] Furthermore, the ejector is a ball.

[0016] Beneficial effect: The paper limiting device of the utility model sets a guide rail and a limiter at the paper entrance, uses the rack on the guide rail to more accurately position the position of the limiter, and uses the limiter to limit the paper. Compared with the existing scheme, it has a simple structure, low cost, and is easy to mass produce and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the paper limiting device of the utility model;

[0018] Attached Figure 2 for Figure 1 A schematic cross-sectional view of the limiter portion of the paper limit device shown. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] See also Figure 1 to Figure 2An embodiment of a paper limiting device of the utility model shown in the figure comprises: a first guide rail 3 and a limiter 2. The first guide rail 3 is arranged above or below the paper inlet 1. In this embodiment, the first guide rail 3 is arranged below the paper inlet 1. A rack 31 is arranged on the first guide rail 3 in the horizontal direction.

[0022] The stopper 2 includes a baffle 21 slidably connected to the first guide rail 3, and an ejector 24 is provided on the baffle 21 at a position corresponding to the rack 31. The ejector 24 is elastically connected to the baffle 21, and the ejector 24 abuts against the tooth groove of the rack 31. When the stopper 2 is moved to change the paper specification required to be input, the stopper 2 is directly moved, and the ejector 24 moves horizontally accordingly, is pushed out by the teeth, and compresses the elastic member 25 to shorten, and is pushed out again by the elastic member 25 when encountering the next tooth groove, until it reaches the predetermined position.

[0023] By setting a guide rail and a limiter 2 at the paper inlet 1, the rack 31 on the guide rail is used to more accurately position the position of the limiter 2, and the limiter 2 is used to limit the paper. Compared with the existing solution, it has a simple structure, low cost, and is easy to mass produce and apply.

[0024] In some preferred embodiments, the baffle 21 is provided with a first sliding portion 22 for slidingly connecting to the first guide rail 3, and the first sliding portion 22 is provided with a through hole 26 for accommodating the ejector 24 at a position corresponding to the rack 31, and the ejector 24 is arranged in the through hole 26, and the end of the ejector 24 is elastically connected to the end of the through hole 26 through an elastic member 25. Specifically, the ejector 24 is a ball, and the end of the through hole 26 is blocked by a flat head bolt. In other embodiments, the through hole 26 can also be set as a countersunk hole, and such structural changes still fall within the protection scope of the utility model.

[0025] Furthermore, the outer side of the first sliding portion 22 is configured to extend in an arc shape toward the inner side of the paper inlet 1. The arc shape design plays a role in guiding the paper to enter the paper inlet 1.

[0026] In some preferred embodiments, a second guide rail 4 is further provided on the side of the paper inlet 1 away from the first guide rail 3, and a second sliding portion 23 is further provided on the baffle 21, and the second sliding portion 23 is slidably connected to the second guide rail 4. The provision of the second guide rail 4 and the second sliding portion 23 ensures the stability of the sliding process, thereby preventing the baffle 21 from being skewed. The outer side of the second sliding portion 23 is configured to extend in an arc shape toward the inner side of the paper inlet 1. By providing the outer sides of the first sliding portion 22 and the second sliding portion 23 with an arc shape, the paper is guided to enter the paper inlet 1 together.

[0027] In some preferred embodiments, there are two stoppers 2, which are arranged opposite to each other at the paper inlet 1. The baffles 21 of the two stoppers 2 form a grid for regulating the paper entering the paper inlet 1. By setting two stoppers 2, the position of paper input can be changed at will. When there are multiple print heads inside the printer, paper can be inputted to a certain print head separately, thus avoiding the situation that the entire printer cannot be used when a certain print head fails.

[0028] In some preferred embodiments, a first slide groove 32 is provided below the first guide rail 3, a first member 27 extending into the first slide groove 32 is provided at the bottom end of the first sliding portion 22, and a barb 271 is provided at the end of the first member 27. A second slide groove 42 is provided above the second guide rail 4, a second member 28 extending into the second slide groove 42 is provided at the top end of the second sliding portion 23, and a barb 281 is provided at the end of the second member 28. By providing the slide groove, the member and the barb deep in the slide groove, the limiter 2 cannot be easily disengaged from the first guide rail 3, and the contact between the ejector 24 and the rack 31 is ensured.

[0029] 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 limiting device, characterized in that: include: A first guide rail disposed above or below the paper inlet, wherein a rack is disposed on the first guide rail in a horizontal direction; The limiter comprises a baffle plate slidably connected to the first guide rail, wherein an ejector is provided on the baffle plate at a position corresponding to the rack, the ejector is elastically connected to the baffle plate, and the ejector is in contact with a tooth groove of the rack.

2. A paper limiting device according to claim 1, characterized in that: The baffle is provided with a first sliding part for slidably connecting to the first guide rail, and the first sliding part is provided with a through hole for accommodating the ejector corresponding to the rack. The ejector is arranged in the through hole, and the end of the ejector is elastically connected to the end of the through hole through an elastic member.

3. A paper limiting device according to claim 2, characterized in that: The outer side of the first sliding portion is configured to extend in an arc shape toward the inner side of the paper inlet.

4. A paper limiting device according to claim 2, characterized in that: A second guide rail is further provided on the side of the paper inlet away from the first guide rail, and a second sliding portion is further provided on the baffle, and the second sliding portion is slidably connected to the second guide rail.

5. A paper limiting device according to claim 4, characterized in that: The outer side of the second sliding portion is configured to extend in an arc shape toward the inner side of the paper inlet.

6. A paper limiting device according to claim 1, characterized in that: There are two limiters, which are arranged opposite to each other at the paper entrance.

7. A paper limiting device according to claim 2, characterized in that: A first slide groove is provided below the first guide rail, a first component extending into the first slide groove is provided at the bottom end of the first sliding portion, and a barb is provided at the end of the first component.

8. A paper limiting device according to claim 4, characterized in that: A second slide groove is arranged above the second guide rail, a second component extending into the second slide groove is arranged at the bottom end of the second sliding part, and a barb is arranged at the end of the second component.

9. A paper limiting device according to claim 1, characterized in that: The ejector is a ball.

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