High speed paper feeder using lower suction nozzle

Abstract

The application discloses a high-speed paper feeder using a lower suction nozzle, which comprises a paper storage part, a transmission part and a paper taking part fixed on a paper feeder frame; the paper storage part is L-shaped and fixed on the paper feeder frame; the paper taking part is arranged below the paper storage part and comprises a second auxiliary paper taking assembly and a first auxiliary paper taking assembly arranged left and right in sequence; the transmission part is arranged on the left side of the second auxiliary paper taking assembly; the first auxiliary paper taking assembly comprises a first fixing frame, a first suction nozzle, a first pneumatic part and a first left-right sliding module; the first fixing frame is arranged on the right side of the paper feeder frame; the first pneumatic part is fixed on the first left-right sliding module and can slide left and right on the first fixing frame through the first left-right sliding module; the output end of the first pneumatic part is arranged upwards; the first suction nozzle is arranged on the output end of the first pneumatic part; the application has the characteristics of high stability, paper not easy to bend, high paper transportation efficiency and the like.

Description

Technical Field

[0001] This invention relates to a paper feeder, and more particularly to a high-speed paper feeder using a lower suction nozzle that can ensure high-speed paper feeding at the front end and prevent the paper from bending due to excessive feeding speed. Background Technology

[0002] The main functional component of a paper feeder is the separating head, whose primary task is to periodically separate sheets of paper one by one from the paper stack and pass them forward to the receiving roller. The paper is then transported forward by the feed plate to the front guide, thus completing the paper feeding process. Based on the paper separation method of the separating head, paper feeders can be divided into friction feeders and pneumatic feeders. Friction feeders utilize the principle of friction to separate individual sheets from the paper stack. The friction force is generated by the rotation of friction wheels or the movement of friction blocks. While this method effectively removes paper from the paper stack, its drawbacks are significant. The feeder is slow, noisy, and prone to contaminating the paper, especially thin or thick paper. It is also susceptible to paper damage or incomplete separation, and is gradually failing to meet market demands. Another type of pneumatic paper feeder uses air blowing and suction to separate the paper from the paper stack. Although this feeding method avoids the problems of paper contamination and slow transmission that occur with friction paper feeders, it is very easy for the paper to bend or deform during the paper transport process. This problem occurs more frequently, especially when the speed is increased. This not only limits the production efficiency of the die-cutting machine, but also causes a certain degree of paper waste. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a high-speed paper feeder using a lower suction nozzle that can ensure high-speed paper feeding at the front end and prevent the paper from bending due to excessive feeding speed.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A high-speed paper feeder using a lower suction nozzle includes a paper storage section, a transport section, and a paper take-up section fixed to the paper feeder frame. The paper storage section is L-shaped and fixed to the paper feeder frame. The paper take-up section is located below the paper storage section and includes a second auxiliary paper take-up component and a first auxiliary paper take-up component arranged sequentially to the left and right. The transport section is located to the left of the second auxiliary paper take-up component. The first auxiliary paper take-up component includes a first fixed frame, a first suction nozzle, a first pneumatic component, and a first left-right sliding module. The first fixed frame is located to the right of the paper feeder frame. The first pneumatic component is fixed to the first left-right sliding module and can slide left and right on the first fixed frame through the first left-right sliding module. The output end of the first pneumatic component is oriented upwards. The first suction nozzle is located at the output end of the first pneumatic component. The air outlet of the first suction nozzle is connected to an external air pump through an air pipe.

[0006] The high-speed paper feeder using the aforementioned lower suction nozzle includes a first sliding module comprising a first slider, a first slide rail, a second connecting rod, and a first eccentric wheel. The first slide rail is longitudinally mounted on a first fixed frame, and the first slider slides in a left-right sliding engagement with the first slide rail. The first eccentric wheel is located at the left end of the first fixed frame. The protrusion of the first eccentric wheel is axially connected to the middle position of the second connecting rod. One end of the second connecting rod is axially connected to the right end of the first fixed frame, and the other end is axially connected to one end of the first connecting rod. The other end of the first connecting rod is axially connected to the first slider.

[0007] The high-speed paper feeder using the aforementioned lower suction nozzle includes a second auxiliary paper feeding assembly comprising a second fixed frame, a second suction nozzle, a second pneumatic component, and a second left-right sliding module. The second fixed frame is located on the left side of the paper feeder frame. The second pneumatic component is fixed to the second left-right sliding module and can slide left and right on the second fixed frame via the second left-right sliding module. The output end of the second pneumatic component faces upward. The second suction nozzle is located at the output end of the second pneumatic component. The air outlet of the second suction nozzle is connected to an external air pump via an air pipe.

[0008] The high-speed paper feeder using the lower suction nozzle described above includes a second sliding module comprising a second slider, a second slide rail, a third connecting rod, a fourth connecting rod, and a second eccentric wheel. The second slide rail is longitudinally mounted on a second fixed frame, and the second slider slides in a left-right sliding engagement with the second slide rail. The second eccentric wheel is located at the right end of the second fixed frame. The protrusion of the second eccentric wheel is axially connected to the middle position of the third connecting rod. One end of the third connecting rod is axially connected to the left end of the second fixed frame, and the other end is axially connected to one end of the fourth connecting rod. The other end of the fourth connecting rod is axially connected to the first slider.

[0009] The high-speed paper feeder using the above-mentioned lower suction nozzle includes two paper receiving rollers arranged vertically and vertically; the paper output end of the second auxiliary paper feeding component is located between the two paper receiving rollers.

[0010] The beneficial effects of adopting the above technical solution are as follows: The invention uses an "L-shaped" paper storage section, which allows the paper to be neatly stacked on the storage section, effectively preventing unevenness and improving the stability of paper pickup. Furthermore, the invention employs a first auxiliary paper-picking component and a second auxiliary paper-picking component for paper pickup; the first auxiliary paper-picking component smoothly removes the paper from the storage section and then smoothly transports it to the second auxiliary paper-picking component; after receiving the paper, the second auxiliary paper-picking component smoothly delivers the paper to the transport section; whether during paper pickup or delivery, the paper is transported in a linear motion, making it less prone to bending, and maintaining flatness even with increased paper feeding speed. The invention features high stability, reduced paper bending, and high paper transport efficiency. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of the first auxiliary paper feeding component;

[0014] Figure 3 This is a schematic diagram of the second auxiliary paper-feeding component.

[0015] The labels in the diagram represent: 1. Paper feeder frame; 2. First auxiliary paper feeding assembly; 21. First suction nozzle; 22. First pneumatic component; 23. First slide rail; 24. First slider; 25. First connecting rod; 26. Second connecting rod; 27. First eccentric wheel; 28. First fixed frame; 3. Second auxiliary paper feeding assembly; 31. Second suction nozzle; 32. Second pneumatic component; 33. Second eccentric wheel; 34. Third connecting rod; 35. Second fixed frame; 36. Second slide rail; 37. Second slider; 38. Fourth connecting rod; 4. Paper storage section; 5. Transfer section. Detailed Implementation

[0016] See Figure 1 and Figure 2The present invention includes a paper storage section 4, a conveying section, and a paper picking section 5 disposed on the paper feeder frame. The paper storage section 4 is L-shaped and fixed on the paper feeder frame 1. The paper is restricted by the vertical plate of the paper storage section 4, so that the paper is neatly stacked on the horizontal plate of the paper storage section 4, which can effectively prevent the paper from being uneven and make the paper picking more stable. The paper picking section is disposed below the paper storage section 4 and includes a second auxiliary paper picking component 3 and a first auxiliary paper picking component 2 disposed on the left and right. The first auxiliary paper picking component 2 includes a first fixing frame 28, a first suction nozzle 21, a first pneumatic component 22, and a first left and right sliding module. The first fixing frame 28 is disposed on the right side of the paper feeder frame 1. The first pneumatic component 22 is fixed on the first left and right sliding module and can slide to the right on the first fixing frame 28 through the first left and right sliding module, so as to move the picked-up paper to the right and pick up the paper from the paper storage section 4. The output end of the first pneumatic component 22 is positioned upwards; the first suction nozzle 21 is located at the output end of the first pneumatic component 22, and the air outlet of the first suction nozzle 21 is connected to an external air pump via an air pipe. In this invention, the first pneumatic component 22 can be a cylinder or other pneumatic device. Thus, when the first pneumatic component 22 extends upwards and contacts the paper, the air pump operates, drawing air out of the first suction nozzle 21, thereby achieving the goal of firmly suctioning the paper. The first left-right sliding module includes a first slider 24, a first slide rail 23, a second connecting rod 26, a first connecting rod 25, and a first eccentric wheel 27. The first slide rail 23 is longitudinally arranged on the first fixed frame 28, and the first slider 24 slides left and right with the first slide rail 23. The first eccentric wheel 27 is fixed to the left end of the first fixed frame 28. The first eccentric wheel 27 operates under the drive of an external stepper motor and its matching reducer. The protrusion of the first eccentric wheel 27 is axially connected to the middle position of the second connecting rod 26. One end of the second connecting rod 26 is axially connected to the first fixed frame 28, and the other end is axially connected to one end of the first connecting rod 25. The other end of the first connecting rod 25 is axially connected to the first slider 24. When the first left-right sliding module is working, the first eccentric wheel 27 rotates, which, through the second connecting rod 26 and the first connecting rod 25, drives the first slider 24 to move to the right on the first slide rail 23.

[0017] See Figure 1 and Figure 2In this invention, the second auxiliary paper-feeding component 3 includes a second fixed frame 35, a second suction nozzle 31, a second pneumatic component 32, and a second left-right sliding module. The second fixed frame 35 is located on the left side of the paper feeder frame 1. The second pneumatic component 32 is fixed on the second left-right sliding module and can slide left and right on the second fixed frame 35 through the second left-right sliding module, thus moving the sucked paper to the left and delivering the paper to the transmission section 5. The output end of the second pneumatic component 32 is upward-facing. The second suction nozzle 31 is located at the output end of the second pneumatic component 32, and the air outlet of the second suction nozzle 31 is connected to an external air pump through an air pipe. Thus, when the second pneumatic component 32 extends upward and contacts the paper, the air pump operates to remove the air from the second suction nozzle 31, thereby achieving the goal of firmly sucking the paper. The second left-right sliding module includes a second slider 37, a second slide rail 36, a third connecting rod 34, a fourth connecting rod 38, and a second eccentric wheel 33. The second slide rail 36 is longitudinally arranged on the second fixed frame 35, and the second slider 37 slides left and right with the second slide rail 36. The second eccentric wheel 33 is located on the right side of the second fixed frame 35. The second eccentric wheel 33 operates under the drive of an external stepper motor and its matching reducer. The protrusion of the second eccentric wheel 33 is axially connected to the middle position of the third connecting rod 34. One end of the third connecting rod 34 is axially connected to the left side of the second fixed frame 35, and the other end is axially connected to one end of the fourth connecting rod 38. The other end of the fourth connecting rod 38 is axially connected to the second slider 37. The transmission part 5 is located on the left side of the second auxiliary paper feeding assembly 3. When the second left-right sliding module is working, the second eccentric wheel 33 rotates, which is linked by the third connecting rod 34 and the fourth connecting rod 38, thereby driving the second slider 37 to move to the left on the second slide rail 36.

[0018] See Figure 1 The transmission unit 5 of the present invention consists of two paper receiving rollers arranged vertically and vertically; the second auxiliary paper picking component 3 can transport paper between the two paper receiving rollers.

[0019] The working process of this invention is as follows:

[0020] The output end of the first pneumatic component 22 extends upwards. The first suction nozzle 21 located at the output end of the first pneumatic component 22 contacts the paper. After the first suction nozzle 21 grips one end of the paper, the first eccentric wheel 27 is driven by the drive motor, thereby driving the second connecting rod 26 and the first connecting rod 25 connected to it to move. This, in turn, drives the first suction nozzle 21 on the first slide rail 23 to move the paper to the right along the first slide rail 23, removing the paper from the paper storage section 4, and causing the other end to fall to the second auxiliary paper picking component, completing the paper picking action. Then, as the first eccentric wheel 27 rotates, it drives the paper to the left, so that it can cooperate with the second auxiliary paper picking component for transportation. After the first eccentric wheel 27 completes one revolution, it returns to its original initial position to perform the next paper picking action. After the second suction nozzle 31 grips the paper, the drive motor drives the second eccentric wheel 33 to move, which in turn drives the third connecting rod 34 and the fourth connecting rod 38. This, in turn, causes the second suction nozzle 31 on the second slide rail 36 to move to the left along the slide rail 36, thus feeding the paper into the transmission section 5. After the transmission is completed, once the second eccentric wheel 33 has completed one revolution, the second suction nozzle 31 returns to its starting position, waiting for the first suction nozzle 21 to transfer the paper, and then continues the next round of transmission. The drive motor described in this invention is a stepper motor or a servo motor, and it is connected to the first and second eccentric wheels with a reducer.

Claims

1. A high-speed paper feeder using a bottom suction nozzle, characterized in that: It includes a paper storage section (4), a transmission section (5), and a paper take-up section fixed on the paper feeder frame (1); the paper storage section (4) is "L-shaped" and fixed on the paper feeder frame (1); the paper take-up section is located below the paper storage section (4) and includes a second auxiliary paper take-up component (3) and a first auxiliary paper take-up component (2) arranged sequentially to the left and right; the transmission section (5) is located to the left of the second auxiliary paper take-up component (3); the first auxiliary paper take-up component (2) includes a first fixing frame (28) and a first suction nozzle (21). The first pneumatic component (22) and the first left and right sliding module are provided; the first fixed frame (28) is provided on the right side of the paper feeder frame (1); the first pneumatic component (22) is fixed on the first left and right sliding module and can slide left and right on the first fixed frame (28) through the first left and right sliding module; the output end of the first pneumatic component (22) is set upward; the first suction nozzle (21) is provided on the output end of the first pneumatic component (22); the air outlet of the first suction nozzle (21) is connected to an external air pump through an air pipe; The first left-right sliding module includes a first slider (24), a first slide rail (23), a second connecting rod (26), a first connecting rod (25), and a first eccentric wheel (27); the first slide rail (23) is longitudinally arranged on the first fixed frame (28), and the first slider (24) slides left and right with the first slide rail (23); the first eccentric wheel (27) is arranged at the left end of the first fixed frame (28); the protrusion of the first eccentric wheel (27) is axially connected to the middle position of the second connecting rod (26); one end of the second connecting rod (26) is axially connected to the right end of the first fixed frame (28), and the other end is axially connected to one end of the first connecting rod (25); the other end of the first connecting rod (25) is axially connected to the first slider (24); The second auxiliary paper feeding component (3) includes a second fixed frame (35), a second suction nozzle (31), a second pneumatic component (32), and a second left and right sliding module; the second fixed frame (35) is located on the left side of the paper feeder frame (1); the second pneumatic component (32) is fixed on the second left and right sliding module and can slide left and right on the second fixed frame (35) through the second left and right sliding module; the output end of the second pneumatic component (32) is set upward; the second suction nozzle (31) is located at the output end of the second pneumatic component (32); the air outlet of the second suction nozzle (31) is connected to an external air pump through an air pipe.

2. The high-speed paper feeder using a lower suction nozzle according to claim 1, characterized in that: The second left and right sliding module includes a second slider (37), a second slide rail (36), a third connecting rod (34), a fourth connecting rod (38), and a second eccentric wheel (33); the second slide rail (36) is longitudinally arranged on the second fixed frame (35), and the second slider (37) slides left and right with the second slide rail (36); the second eccentric wheel (33) is arranged at the right end of the second fixed frame (35); the protrusion of the second eccentric wheel (33) is axially connected to the middle position of the third connecting rod (34); one end of the third connecting rod (34) is axially connected to the left end of the second fixed frame (35), and the other end is axially connected to one end of the fourth connecting rod (38); the other end of the fourth connecting rod (38) is axially connected to the first slider (24).

3. The high-speed paper feeder using a lower suction nozzle according to claim 1 or 2, characterized in that: The transmission unit (5) includes two paper receiving rollers arranged vertically and vertically; the paper output end of the second auxiliary paper feeding component (3) corresponds to the middle of the two paper receiving rollers.

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