Paper feeding device for printing

Abstract

The utility model provides a paper feeding device for printing, which belongs to the technical field of printing equipment, aims to solve the problem of low conveying speed caused by the fact that a test paper bag conveying mode in the prior art needs to complete a plurality of actions to realize conveying, and comprises a carrier plate, a cross beam, a paper feeding roller, a paper feeding cutter, a locking piece, a motor and a side baffle plate, the carrying plate is obliquely arranged, the cross beam is fixedly connected to the carrying plate and located on the lower side of the carrying plate, the paper feeding roller is in transmission connection with the motor, the paper feeding cutter is vertically arranged over the lower end of the carrying plate, a paper outlet is formed by the lower end of the paper feeding cutter and the lower end of the carrying plate, the paper feeding roller is arranged at the paper outlet, and the paper feeding roller is arranged at the lower end of the carrying plate. The paper feeding cutter is vertically arranged in a sliding mode, the locking piece is used for fixing the paper feeding cutter to the cross beam, the two side baffles are arranged on the two sides of the carrying plate, and stacked test paper bags are placed between the two side baffles.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, and more specifically, relates to a paper feeding device for printing. Background Art

[0002] An exam paper bag is a paper bag commonly used in exams to package exam papers. It is not allowed to be unpacked before a specific exam to ensure its confidentiality. It will not be unpacked until the exam to ensure that the exam content is not leaked and to ensure the fairness of the exam.

[0003] However, water-based glue is used on the surface of the test paper bag to achieve sealing, which makes the surface of the test paper bag uneven and wrinkled. It is difficult to print anti-tampering text on its surface. First, it is necessary to solve the problem of transporting the test paper bags one by one. The traditional method is to directly use a suction cup plus a displacement mechanism to separate the test paper bags one by one. This method requires the realization of multiple distribution actions such as sucking up the test paper bag, moving the test paper bag, and putting down the test paper bag.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that the test paper bag conveying method of the prior art requires completing multiple actions to achieve conveying, resulting in a slow conveying speed.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a printing paper feeding device is provided to achieve the purpose of having more practical value. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a paper feeding device for printing, which solves the problem that the conventional test paper bag conveying method requires multiple actions to achieve conveying, resulting in slow conveying speed.

[0007] The purpose and function of the paper feeding device for printing of the present invention are achieved by the following specific technical means:

[0008] A paper feeding device for printing, comprising:

[0009] Carrying plate, crossbeam, paper feed roller, paper feed knife, locking parts, motor and side fence;

[0010] The carrier plate is arranged at an angle, the crossbeam is fixedly connected to the carrier plate, the crossbeam is located on the lower side of the carrier plate, the paper feed roller is connected to the motor transmission, the paper feed knife is vertically arranged just above the lower end of the carrier plate, the lower end of the paper feed knife and the lower end of the carrier plate form a paper outlet, the paper feed roller is arranged at the paper outlet, the paper feed knife is arranged to slide vertically, the locking piece is used to fix the paper feed knife on the crossbeam, the side baffles are provided with two pieces, the two side baffles are arranged on both sides of the carrier plate, and the stacked test paper bags are placed between the two side baffles.

[0011] Furthermore, the crossbeam is provided with a guide bar, the paper feeding knife is provided with a guide groove, and the guide bar is slidably connected to the guide groove.

[0012] Furthermore, an oblong groove is provided on both sides of the beam, the side baffle is fixedly connected to a slider, the locking member includes a screw and a knob fixedly connected to one end of the screw, and the screw passes through the oblong groove and is threadedly connected to the slider.

[0013] Furthermore, the crossbeam is provided with two threaded holes 1, and the paper feeding knife is vertically provided with two long circular grooves 2. The paper feeding knife is also threadedly connected to the threaded hole 1 by the screw of the locking member passing through the long circular groove 2.

[0014] Furthermore, the paper feeding roller is a polyurethane rubber roller.

[0015] Furthermore, an arc-shaped portion is provided on the inner side of the lower end of the paper feeding knife.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model provides an inclined carrying plate so that the test paper bag can slide downward to the paper outlet between the paper feed knife and the paper feed roller. When the paper feed roller rotates, the test paper bag is driven and output. Since the friction force of the outer periphery of the paper feed roller is applied to the surface of the test paper bag, the roll tape is quickly output. After one test paper bag is output, the next test paper bag can fall onto the paper feed roller, thereby achieving the effect of quickly outputting the test paper bags one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a paper feeding device for printing according to the present invention.

[0019] Figure 2 This is a schematic diagram of the exploded structure of the assembly of the crossbeam, paper feed knife and locking member in the utility model (first perspective).

[0020] Figure 3 This is a schematic diagram of the exploded structure of the assembly of the crossbeam, paper feed knife and locking member in the utility model (second perspective).

[0021] Figure 4 The utility model is a schematic cross-sectional view of a paper feeding device for printing.

[0022] In the figure, the corresponding relationship between component names and drawing numbers is as follows:

[0023] Carrying plate 11, crossbeam 12, guide bar 121, oblong groove 122, threaded hole 123, paper feed roller 13, paper feed knife 14, guide groove 141, oblong groove 2 142, arc-shaped portion 143, locking member 15, screw 151, knob 152, motor 16, side guard 17, slider 18. DETAILED DESCRIPTION

[0024] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] Example:

[0028] As attached Figure 1 To the attached Figure 4 As shown:

[0029] The utility model provides a paper feeding device for printing, comprising:

[0030] Carrying plate 11, crossbeam 12, paper feed roller 13, paper feed knife 14, locking member 15, motor 16 and side fence 17;

[0031] The carrier plate 11 is set at an angle, and the crossbeam 12 is fixedly connected to the carrier plate 11. The crossbeam 12 is located on the lower side of the carrier plate 11. The paper feed roller 13 is transmission-connected to the motor 16. The paper feed knife 14 is vertically set just above the lower end of the carrier plate 11. The lower end of the paper feed knife 14 and the lower end of the carrier plate 11 form a paper outlet. The paper feed roller 13 is set at the paper outlet. The paper feed knife 14 is set to slide vertically. The locking member 15 is used to fix the paper feed knife 14 on the crossbeam 12. There are two side guards 17. The two side guards 17 are set on both sides of the carrier plate 11. The stacked test paper bags are placed between the two side guards 17.

[0032] In this embodiment, the inclined carrier plate 11 allows the test paper bag to slide downward to the paper outlet between the paper feed knife 14 and the paper feed roller 13. When the paper feed roller 13 rotates, it pulls the test paper bag with it and delivers it. The friction force applied by the outer periphery of the paper feed roller 13 on the surface of the test paper bag quickly delivers the tape. Only after one test paper bag is delivered can the next one fall onto the paper feed roller 13, achieving the effect of quickly delivering the test paper bags one by one. The side guard 17 is provided to limit the delivery position of the test paper bag, thereby ensuring that the test paper bag is stable and does not shift during delivery.

[0033] The crossbeam 12 is provided with a guide bar 121 , and the paper feeding knife 14 is provided with a guide groove 141 . The guide bar 121 is slidably connected to the guide groove 141 .

[0034] The guide groove 141 and the guide strip 121 guide the movement of the paper feeding knife 14 .

[0035] An oblong groove 122 is provided on both sides of the crossbeam 12, and the side baffle 17 is fixedly connected to the slider 18. The locking member 15 includes a screw 151 and a knob 152 fixedly connected to one end of the screw 151. The screw 151 passes through the oblong groove 122 and is threadedly connected to the slider 18.

[0036] By rotating the locking member 15 , the side baffles 17 can be locked and fixed on the crossbeam 12 , thereby adjusting the distance between the two side baffles 17 according to the different widths of the test paper bags.

[0037] The crossbeam 12 is provided with two threaded holes 123 , and the paper feed knife 14 is vertically provided with two oblong grooves 142 . The paper feed knife 14 is also threadedly connected to the threaded hole 123 via the screw 151 of the locking member 15 passing through the oblong groove 142 .

[0038] The paper feeding roller 13 is a polyurethane rubber roller. The polyurethane rubber roller has a larger friction coefficient, thereby increasing the friction between the test paper bag and the polyurethane rubber roller, making the friction force received by the test paper bag during transportation more stable.

[0039] The inner side of the lower end of the paper feeding knife 14 is provided with an arcuate portion 143. As the test paper bags are transported, the setting of the arcuate portion 143 makes the stacked test paper bags gradually approach the paper feeding roller 13.

[0040] The specific usage and function of this embodiment are as follows:

[0041] When the utility model is in use, the stacked test paper bags are placed between the two side baffles 17 and on the surface of the carrier plate 11, and then the paper feeding roller 13 is started to drive the test paper bags to be transported one by one.

[0042] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A paper feeding device for printing, characterized in that: include: A carrier plate (11), a crossbeam (12), a paper feed roller (13), a paper feed knife (14), a locking member (15), a motor (16) and a side guard (17); The carrier plate (11) is tilted, the crossbeam (12) is fixedly connected to the carrier plate (11), the crossbeam (12) is located on the lower side of the carrier plate (11), the paper feed roller (13) is transmission-connected to the motor (16), the paper feed knife (14) is vertically arranged just above the lower end of the carrier plate (11), the lower end of the paper feed knife (14) and the lower end of the carrier plate (11) form a paper outlet, the paper feed roller (13) is arranged at the paper outlet, the paper feed knife (14) is vertically slidable, the locking member (15) is used to fix the paper feed knife (14) on the crossbeam (12), and two side baffles (17) are provided, the two side baffles (17) are arranged on both sides of the carrier plate (11), and the stacked test paper bags are placed between the two side baffles (17).

2. A paper feeding device for printing according to claim 1, characterized in that: The crossbeam (12) is provided with a guide strip (121), The paper feeding knife (14) is provided with a guide groove (141), and the guide bar (121) is slidably connected to the guide groove (141).

3. A paper feeding device for printing according to claim 1, characterized in that: An oblong groove (122) is provided on both sides of the crossbeam (12), the side baffle (17) is fixedly connected to a slider (18), the locking member (15) comprises a screw rod (151) and a knob (152) fixedly connected to one end of the screw rod (151), and the screw rod (151) passes through the oblong groove (122) and is threadedly connected to the slider (18).

4. A paper feeding device for printing according to claim 1, characterized in that: The crossbeam (12) is provided with two threaded holes (123), and the paper feeding knife (14) is vertically provided with two long circular grooves (142). The paper feeding knife (14) is also threadedly connected to the threaded hole (123) by passing through the long circular groove (142) through the screw (151) of the locking member (15).

5. A paper feeding device for printing according to any one of claims 1 to 4, characterized in that: The paper feeding roller (13) is a polyurethane rubber roller.

6. A paper feeding device for printing according to claim 1, characterized in that: An arc-shaped portion (143) is provided on the inner side of the lower end of the paper feeding knife (14).

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