Octopus claw type paper conveying mechanism

Abstract

The utility model provides an octopus claw type paper conveying mechanism which comprises a negative pressure paper suction mechanism and a lifting mechanism, the lifting mechanism is used for driving the negative pressure paper suction mechanism to reciprocate up and down, and the negative pressure paper suction mechanism is suitable for descending to suck paper from a paper stack and ascending to feed the paper into a paper inlet; the negative-pressure paper suction mechanism comprises a negative-pressure box, a negative-pressure belt and a driving assembly, the interior of the negative-pressure box is in a negative-pressure environment, and a plurality of negative-pressure holes are formed in the bottom of the negative-pressure box; the negative pressure belt is arranged on the negative pressure box in a sleeving mode and attached to the lower side of the negative pressure box. A plurality of elastic suction nozzles are arranged on the negative pressure belt; the driving assembly is connected with the negative pressure box, and the power output end is connected with the negative pressure belt and used for driving the negative pressure belt to circularly move around the negative pressure box. And when the negative pressure belt circularly moves around the negative pressure box, each negative pressure hole in the lower side of the negative pressure box is always communicated with the plurality of elastic suction nozzles.

Description

Technical Field

[0001] The utility model belongs to the technical field of printer auxiliary equipment, and in particular relates to an octopus claw type paper conveying mechanism. Background Art

[0002] Digital printers are usually used for batch printing, which requires accurate paper feeding and prevents two or more sheets from overlapping when feeding.

[0003] The paper conveying mechanism on the existing printer is usually a rubber roller pressed on the paper stack. The rubber roller pressed on the paper stack rotates to drive the paper on the top of the paper stack into the printing mechanism through the paper inlet; however, due to the friction between the papers and the rubber roller pressed on the paper stack further increasing the friction between the papers, it is easy for two or more sheets of paper to be fed into the printer overlapping each other, resulting in printing failures and seriously affecting printing efficiency. Utility Model Content

[0004] The utility model provides an octopus claw type paper conveying mechanism, aiming to solve the technical problem that two or more sheets of paper are easily overlapped and conveyed into the printer by the paper conveying mechanism on the existing printer.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide an octopus claw type paper conveying mechanism, including a negative pressure paper suction mechanism and a lifting mechanism, the lifting mechanism is used to drive the negative pressure paper suction mechanism to reciprocate up and down, and the negative pressure paper suction mechanism is suitable for descending to suck paper from a paper stack and ascending to feed the paper into a paper inlet;

[0006] The negative pressure paper suction mechanism comprises:

[0007] A negative pressure box, the interior of which is in a negative pressure environment, and a plurality of negative pressure holes are provided at the bottom of the negative pressure box;

[0008] A negative pressure belt is sleeved on the negative pressure box and is in contact with the lower side of the negative pressure box; a plurality of elastic suction nozzles are arranged on the negative pressure belt;

[0009] A driving assembly connected to the negative pressure box, wherein a power output end is connected to the negative pressure belt, and is used to drive the negative pressure belt to circulate around the negative pressure box;

[0010] Wherein, when the negative pressure belt circulates around the negative pressure box, each of the negative pressure holes on the lower side of the negative pressure box is always connected to a plurality of elastic suction nozzles.

[0011] In a possible implementation of the octopus claw type paper conveying mechanism provided by the utility model, the negative pressure hole is a long hole, and a plurality of the negative pressure holes are evenly arranged in a matrix; the elastic suction nozzles on the negative pressure belt are evenly arranged in a matrix; each of the negative pressure holes is connected to at least one of the elastic suction nozzles.

[0012] In a possible implementation of the octopus claw type paper conveying mechanism provided by the present invention, the negative pressure box includes:

[0013] The box body has a plurality of negative pressure holes at the bottom and ventilation holes at both sides;

[0014] A connecting frame connected to both sides of the box body, the connecting frame being connected to a power output end of the lifting mechanism; and

[0015] An exhaust pipe is connected to both sides of the box body and communicated with the exhaust holes on both sides of the box body. An exhaust port is provided on the exhaust pipe, and the exhaust port is suitable for communicating with a negative pressure source.

[0016] In a possible implementation of the octopus claw type paper conveying mechanism provided by the present utility model, the driving assembly includes:

[0017] An active roller, arranged on one side of the box body, with both ends connected to the connecting frame;

[0018] A driven roller, disposed on the other side of the box body, with both ends connected to the connecting frame; and

[0019] A first driving mechanism is connected to the connecting frame, and a power output end is connected to the active roller, so as to drive the active roller to rotate;

[0020] Wherein, the negative pressure belt is sleeved on the active roller and the driven roller.

[0021] In a possible implementation of the octopus claw type paper conveying mechanism provided by the utility model, a second pulley is installed at one end of the active roller, and the first driving mechanism includes:

[0022] A first motor assembly connected to the connecting frame;

[0023] A first pulley connected to a power output end of the first motor assembly; and

[0024] A transmission belt is sleeved on the first pulley and the second pulley.

[0025] In a possible implementation of the octopus claw type paper conveying mechanism provided by the utility model, the lifting mechanism includes:

[0026] Slide rail, vertical fixed setting;

[0027] A slider connected to the connecting frame and slidably engaged with the slide rail; and

[0028] The second driving mechanism has a power output end connected to the connecting frame and is used to drive the connecting frame to slide along the slide rail.

[0029] In a possible implementation of the octopus claw type paper conveying mechanism provided by the utility model, the second driving mechanism includes a second motor assembly, an eccentric shaft and a connecting rod; the second motor assembly is fixedly arranged, and the power output end is connected to one end of the eccentric shaft; one end of the connecting rod is rotatably connected to the other end of the eccentric shaft, and the other end of the connecting rod is rotatably connected to the connecting frame.

[0030] The octopus claw type paper conveying mechanism provided by the utility model has the following beneficial effects: compared with the prior art, the octopus claw type paper conveying mechanism provided by the utility model sets a negative pressure belt on the negative pressure box, drives the negative pressure belt to move around the negative pressure box through a driving component, and during the movement, the negative pressure hole on the lower side of the negative pressure box is always connected with the elastic suction nozzle on the lower side of the negative pressure belt, so that the elastic suction nozzle generates negative pressure suction; when feeding paper into the printing mechanism, the negative pressure box and the negative pressure belt are driven to descend through the lifting mechanism, and the elastic suction nozzle on the negative pressure belt adheres to the paper to absorb the paper, and then the negative pressure box and the negative pressure belt are driven to rise, driving the absorbed paper to rise and feeding the paper into the paper inlet through the rotation of the negative pressure belt, so that the paper stack will not be squeezed during the paper feeding process, and the situation that two or more sheets of paper are overlapped and fed into the printer due to friction is effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the three-dimensional structure of an octopus claw type paper conveying mechanism provided in an embodiment of the utility model;

[0032] Figure 2 A schematic side view of the structure of an octopus claw type paper conveying mechanism provided by an embodiment of the utility model;

[0033] Figure 3 For along Figure 2 The cross-sectional structure diagram along the AA line;

[0034] Description of reference numerals:

[0035] 11. Box body; 111. Negative pressure hole; 12. Connecting frame; 13. Exhaust pipe; 131. Exhaust port;

[0036] 20. Negative pressure belt; 21. Elastic suction nozzle; 31. Active roller; 32. Driven roller;

[0037] 33. first pulley; 41. first motor assembly; 42. second pulley; 43. transmission belt;

[0038] 51. Slide rail; 52. Sliding block; 53. Second motor assembly; 54. Eccentric shaft; 55. Connecting rod;

[0039] 61. Paper feed roller; 62. Paper pressing roller; 63. Third driving mechanism. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention 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 present invention and are not used to limit the present invention.

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0044] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0045] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0046] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0047] Please also read Figures 1 to 3 The octopus claw paper conveying mechanism provided by the utility model is now described. The octopus claw paper conveying mechanism includes a negative pressure paper suction mechanism and a lifting mechanism, the lifting mechanism is used to drive the negative pressure paper suction mechanism to reciprocate up and down, and the negative pressure paper suction mechanism is suitable for descending to suck paper from the paper stack and ascending to feed the paper into the paper inlet; the negative pressure paper suction mechanism includes a negative pressure box, a negative pressure belt 20 and a driving component, the interior of the negative pressure box is a negative pressure environment, and a plurality of negative pressure holes 111 are provided at the bottom of the negative pressure box; the negative pressure belt 20 is sleeved on the negative pressure box and the negative pressure belt 20 is in contact with the lower side of the negative pressure box; a plurality of elastic suction nozzles 21 are provided on the negative pressure belt 20; the driving component is connected to the negative pressure box, and the power output end is connected to the negative pressure belt 20, which is used to drive the negative pressure belt 20 to circulate around the negative pressure box; wherein, when the negative pressure belt 20 circulates around the negative pressure box, each negative pressure hole 111 on the lower side of the negative pressure box is always connected to a plurality of elastic suction nozzles 21.

[0048] It should be noted that the octopus claw type paper conveying mechanism is installed on a digital printer for use. The front side of the octopus claw type paper conveying mechanism is the paper feed port of the printing mechanism in the digital printer. A paper feed roller 61 and a paper pressing roller 62 are installed at the paper feed port, and the paper feed roller 61 is driven to rotate by a third driving mechanism 63; the printer is also provided with a lifting platform, and the paper stack is placed on the lifting platform. The lifting platform controls the paper stack to maintain a preset distance range from the negative pressure belt 20, so that the negative pressure belt 20 can suck up the paper through negative pressure; the negative pressure paper suction mechanism sucks the paper when it descends, and sucks the paper up when it rises. At the same time, the negative pressure belt 20 rotates, driving the paper to move forward, and the paper is fed between the paper feed roller 61 and the paper pressing roller 62, and is sent out by the paper feed roller 61 and the paper pressing roller 62 to enter the printing mechanism for printing.

[0049] The beneficial effect of the octopus claw type paper conveying mechanism provided by the embodiment of the utility model is as follows: compared with the prior art, the octopus claw type paper conveying mechanism provided by the embodiment of the utility model sets the negative pressure belt 20 on the negative pressure box, and drives the negative pressure belt 20 to move around the negative pressure box through the driving component, and during the movement, the negative pressure hole 111 on the lower side of the negative pressure box is always connected with the elastic suction nozzle 21 on the lower side of the negative pressure belt 20, so that the elastic suction nozzle 21 generates negative pressure suction; when feeding paper into the printing mechanism, the negative pressure box and the negative pressure belt 20 are driven to descend by the lifting mechanism, and the elastic suction nozzle 21 on the negative pressure belt 20 adheres to the paper and absorbs the paper, and then the negative pressure box and the negative pressure belt 20 are driven to rise, driving the absorbed paper to rise and feeding the paper into the paper inlet through the rotation of the negative pressure belt 20, effectively avoiding the situation where two or more sheets of paper are overlapped and fed into the printer due to friction.

[0050] Furthermore, the elastic suction nozzle 21 is elastic and can more easily fit with the paper and suck the paper, thereby sucking the paper with a small negative pressure, effectively avoiding the situation where multiple sheets of paper are sucked due to excessive negative pressure.

[0051] like Figure 3 As shown, in a specific implementation of the octopus claw type paper conveying mechanism provided in an embodiment of the utility model, the negative pressure hole 111 is a long hole, and a plurality of negative pressure holes 111 are evenly arranged in a matrix; the elastic suction nozzles 21 on the negative pressure belt 20 are evenly arranged in a matrix; each negative pressure hole 111 is connected to at least one elastic suction nozzle 21 to ensure stable adsorption of paper.

[0052] like Figure 2 and Figure 3As shown, in a specific implementation of the octopus claw type paper conveying mechanism provided in an embodiment of the utility model, the negative pressure box includes a box body 11, a connecting frame 12 and an exhaust pipe 13, a plurality of negative pressure holes 111 are opened at the bottom of the box body 11, and exhaust holes are opened on both sides; the connecting frame 12 is connected to both sides of the box body 11, and the connecting frame 12 is connected to the power output end of the lifting mechanism; the exhaust pipe 13 is connected to both sides of the box body 11 and is connected to the exhaust holes on both sides of the box body 11, and an exhaust port 131 is provided on the exhaust pipe 13, and the exhaust port 131 is suitable for connecting with a negative pressure source.

[0053] It should be noted that the negative pressure source may be a negative pressure fan installed on the exhaust pipe 13, or may be the entire negative pressure pipeline of the workshop.

[0054] like Figure 2 and Figure 3 As shown, in a specific implementation of the octopus claw type paper conveying mechanism provided in an embodiment of the utility model, the driving component includes an active roller 31, a driven roller 32 and a first driving mechanism, the active roller 31 is arranged on one side of the box body 11, and both ends are connected to the connecting frame 12; the driven roller 32 is arranged on the other side of the box body 11, and both ends are connected to the connecting frame 12; the first driving mechanism is connected to the connecting frame 12, and the power output end is connected to the active roller 31, which is used to drive the active roller 31 to rotate; wherein, the negative pressure belt 20 is sleeved on the active roller 31 and the driven roller 32.

[0055] Specifically, the first driving mechanism drives the active roller 31 to rotate, thereby driving the negative pressure belt 20 to circulate around the box body 11 .

[0056] like Figure 1 and Figure 2 As shown, in a specific implementation of the octopus claw type paper conveying mechanism provided in an embodiment of the utility model, a second pulley 42 is installed at one end of the active roller 31, and the first driving mechanism includes a first motor assembly 41, a first pulley 33, a second pulley 42 and a transmission belt 43, the first motor assembly 41 is connected to the connecting frame 12; the first pulley 33 is connected to the power output end of the first motor assembly 41; the transmission belt 43 is sleeved on the first pulley 33 and the second pulley 42.

[0057] Specifically, the first motor assembly 41 is a combination of a motor and a reducer. The first motor assembly 41 drives the first pulley 33 to rotate, and transmits power to the second pulley 42 through the transmission belt 43, driving the second pulley 42 to rotate, thereby driving the active roller 31 to rotate.

[0058] like Figure 1 and Figure 2As shown, in a specific implementation of the octopus claw type paper conveying mechanism provided in an embodiment of the utility model, the lifting mechanism includes a slide rail 51, a slider 52 and a second driving mechanism, the slide rail 51 is vertically fixed; the slider 52 is connected to the connecting frame 12 and slidably cooperates with the slide rail 51; the power output end of the second driving mechanism is connected to the connecting frame 12, and is used to drive the connecting frame 12 to slide along the slide rail 51.

[0059] It should be noted that the octopus claw type paper conveying mechanism is a part of the printer, and the slide rail 51 can be connected to a fixed structure on the printer to fix the slide rail 51.

[0060] like Figure 1 and Figure 2 As shown, in a specific implementation of the octopus claw type paper conveying mechanism provided in an embodiment of the utility model, the second driving mechanism includes a second motor assembly 53, an eccentric shaft 54 ​​and a connecting rod 55; the second motor assembly 53 is fixedly arranged, and the power output end is connected to one end of the eccentric shaft 54; one end of the connecting rod 55 is rotatably connected to the other end of the eccentric shaft 54, and the other end of the connecting rod 55 is rotatably connected to the connecting frame 12.

[0061] It should be noted that the second motor assembly 53 is composed of a motor and a reducer. The second motor assembly 53 is connected to a fixed structure on the printer to fix the second motor assembly 53; then the eccentric shaft 54 ​​is driven to rotate, and the negative pressure paper suction mechanism is driven to reciprocate up and down through the connecting rod 55.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An octopus claw type paper conveying mechanism, characterized in that: It includes a negative pressure paper suction mechanism and a lifting mechanism, wherein the lifting mechanism is used to drive the negative pressure paper suction mechanism to reciprocate up and down, and the negative pressure paper suction mechanism is suitable for descending to suck paper from a paper pile and ascending to deliver paper into a paper inlet; The negative pressure paper suction mechanism comprises: A negative pressure box, the interior of which is a negative pressure environment, and a plurality of negative pressure holes (111) are provided at the bottom of the negative pressure box; A negative pressure belt (20) is sleeved on the negative pressure box and the negative pressure belt (20) is in contact with the lower side of the negative pressure box; a plurality of elastic suction nozzles (21) are provided on the negative pressure belt (20); A driving assembly connected to the negative pressure box, wherein a power output end is connected to the negative pressure belt (20) and is used to drive the negative pressure belt (20) to circulate around the negative pressure box; When the negative pressure belt (20) circulates around the negative pressure box, each of the negative pressure holes (111) on the lower side of the negative pressure box is always connected to a plurality of the elastic suction nozzles (21).

2. The octopus claw type paper conveying mechanism according to claim 1, characterized in that: The negative pressure hole (111) is a long hole, and a plurality of the negative pressure holes (111) are evenly arranged in a matrix; the elastic suction nozzles (21) on the negative pressure belt (20) are evenly arranged in a matrix; and each of the negative pressure holes (111) is connected to at least one of the elastic suction nozzles (21).

3. The octopus claw type paper conveying mechanism according to claim 1, characterized in that: The negative pressure box comprises: The box body (11) has a plurality of negative pressure holes (111) at the bottom and ventilation holes at both sides; A connecting frame (12) connected to both sides of the box body (11), the connecting frame (12) being connected to a power output end of the lifting mechanism; and An exhaust pipe (13) is connected to both sides of the box body (11) and communicates with the exhaust holes on both sides of the box body (11); an exhaust port (131) is provided on the exhaust pipe (13); and the exhaust port (131) is suitable for communicating with a negative pressure source.

4. The octopus claw type paper conveying mechanism according to claim 3, characterized in that: The drive assembly comprises: An active roller (31) is arranged on one side of the box body (11), and its two ends are connected to the connecting frame (12); A driven roller (32) is arranged on the other side of the box body (11), and its two ends are connected to the connecting frame (12); and A first driving mechanism is connected to the connecting frame (12), and a power output end is connected to the active roller (31), and is used to drive the active roller (31) to rotate; Wherein, the negative pressure belt (20) is sleeved on the active roller (31) and the driven roller (32).

5. The octopus claw type paper conveying mechanism according to claim 4, characterized in that: A second pulley (42) is mounted on one end of the active roller (31), and the first driving mechanism comprises: A first motor assembly (41) connected to the connecting frame (12); A first pulley (33) connected to a power output end of the first motor assembly (41); and A transmission belt (43) is sleeved on the first belt pulley (33) and the second belt pulley (42).

6. The octopus claw type paper conveying mechanism according to claim 3, characterized in that: The lifting mechanism comprises: A slide rail (51) is fixedly arranged vertically; A sliding block (52) connected to the connecting frame (12) and slidably matched with the sliding rail (51); and A second driving mechanism, whose power output end is connected to the connecting frame (12), is used to drive the connecting frame (12) to slide along the slide rail (51).

7. The octopus claw type paper conveying mechanism according to claim 6, characterized in that: The second driving mechanism comprises a second motor assembly (53), an eccentric shaft (54) and a connecting rod (55); the second motor assembly (53) is fixedly arranged, and a power output end is connected to one end of the eccentric shaft (54); one end of the connecting rod (55) is rotatably connected to the other end of the eccentric shaft (54), and the other end of the connecting rod (55) is rotatably connected to the connecting frame (12).

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