Concave paper conveying mechanism for paper feeder

Abstract

The utility model relates to a concave type paper conveying mechanism for a paper feeder, which is applied to the field of paper feeders and comprises two supporting frames fixedly mounted at the upper end of a paper feeder body, a plurality of positioning plates are fixedly connected to the rear end of the supporting frame on the rear side, and an electric rotating rod is jointly and fixedly connected to the rear ends of the positioning plates. A plurality of paper receiving wheels are fixedly arranged on the outer surface of the electric rotating rod in a sleeving mode, supporting strips are arranged in the supporting frame, the corrugated paper collecting device is suitable for corrugated paper of different thicknesses in the using process, the corrugated paper collecting device is separated from a paper supporting plate through air blowing of vent holes, slight suspension is achieved, friction is reduced, and the scratch-free effect is achieved; the rubber suction cup drives a corrugated board to move forwards, the corrugated board is conveyed to the position above the paper receiving wheel, the problem that a traditional down-suction type paper feeding machine is unstable in paper feeding is effectively solved, scratches to the paper are effectively reduced, the running speed of equipment is increased, the paper feeding precision is improved, and paper which is seriously warped can be conveyed normally.

Description

Technical Field

[0001] The utility model relates to a paper feeding mechanism, in particular to a concave paper feeding mechanism for a paper feeder applied in the field of paper feeders. Background Art

[0002] At present, the well-known die-cutting machine, as a combination of creasing, hot stamping and die-cutting functions, is increasingly used in the post-printing packaging field. The paper feeding mechanism of the existing die-cutting machine generally adopts a leading edge paper feeding mechanism. The working principle of the leading edge paper feeding mechanism is that the corrugated cardboard is placed on a bellows that can generate negative pressure through a fan, and the rotation of the friction wheel on the bellows drives the corrugated cardboard to move forward until it is sent between the upper and lower paper feeding rollers, and then the paper feeding rollers feed the paper forward.

[0003] During use, the current paper feeding mechanism usually conveys corrugated paper of different thicknesses. However, since thin paperboard is greatly deformed by vacuum adsorption and is prone to bending, paper feeding becomes more difficult and unstable, which in turn causes the paper receiving wheel to slide relative to the lower surface of the paper, thereby scratching the paper and causing scratches on the paper surface, affecting product quality. Utility Model Content

[0004] In response to the above-mentioned existing technology, the technical problem to be solved by the present invention is that the existing paper feeding mechanism is not suitable for thin paper. During the adsorption and conveying process, the paper is easily bent, resulting in unstable paper delivery, which in turn causes friction between the paper and the paper receiving wheel, causing scratches on the surface of the paper, affecting product quality.

[0005] In order to solve the above problems, the utility model provides a concave paper feeding mechanism for a paper feeder, comprising two support frames fixedly mounted on the upper end of the paper feeder body, the rear end of the support frame on the rear side is fixedly connected to a plurality of positioning plates, the rear ends of the plurality of positioning plates are commonly fixedly connected to an electric rotating rod, the outer surface of the electric rotating rod is fixedly sleeved with a plurality of paper receiving wheels, a support bar is provided in the support frame, the upper ends of the two support bars are commonly fixedly connected to a linear motor assembly, the linear motor assembly includes a shell fixedly connected to the upper end of the support bar, a linear motor stator is fixedly connected in the shell, a linear motor mover is installed on the surface of the linear motor stator, and the upper end of the linear motor mover is fixed The outer surface of the nozzle shell is fixedly connected to the nozzle base, and the upper end of the nozzle base is fixedly connected to the nozzle shell. The nozzle piston is provided in the inner cavity of the nozzle shell, and the upper end of the nozzle piston is fixedly connected to the rubber suction cup, and the rubber suction cup is located above the paper support board. The outer surface of the nozzle shell is fixedly connected to the vacuum pipe joint.

[0006] The concave paper feeding mechanism of the above-mentioned paper feeder is suitable for corrugated paper of different thicknesses. Air is blown through the vents to separate it from the paper support board, causing it to be slightly suspended, reducing friction and achieving a scratch-free effect. The paper support board moves back and forth to drive the adsorption component to move, and the rubber suction cup drives the corrugated paper board forward and sends the paper board to the top of the paper receiving wheel. This effectively solves the unstable paper feeding problem of traditional downward suction paper feeders, effectively reduces scratches on the paper, improves the equipment's operating speed and paper feeding accuracy, and can also deliver paper normally even for severely warped paper.

[0007] As a further improvement of the present application, a groove is carved on one end of the paper support plate close to the electric rotating rod, and the paper receiving wheel located in the middle of the electric rotating rod corresponds to the groove.

[0008] As a further improvement of the present application, the four adsorption components are respectively located at the four corners of the support plate, and the upper end of the suction nozzle shell is fixed through the support plate and the paper support plate in sequence.

[0009] As a further improvement of the present application, a plurality of ventilation holes are drilled on the surface of the paper support plate, and mounting holes matching the nozzle shell are drilled on the surfaces of both the support plate and the paper support plate.

[0010] As another improvement of the present application, the vacuum pipe joint is communicated with the nozzle housing, and the vacuum pipe joint is fixedly connected to the external air source.

[0011] As another improvement of the present application, the stator and the linear motor are replaced with a rotary motor, which is fixedly mounted on the front inner wall of the outer shell. The output end of the rotary motor is fixedly connected to a screw, and the rear end of the screw is rotatably connected to the rear inner wall of the outer shell. An adjustment block is provided on the threaded sleeve on the outer surface of the screw, and the upper end of the adjustment block is fixedly connected to the lower end of the support plate.

[0012] To sum up, in actual application, the external air source sucks air so that the inside of the nozzle shell is in a negative pressure gas state. At this time, the rubber suction cup absorbs the paper, and then blows air through multiple air holes to separate the paper from the surface of the paper support board, so that the paper is in a slightly suspended state, thereby reducing the friction between the paper and the paper support board, effectively reducing the scratches on the paper, starting the linear motor to move on the surface of the linear motor stator, thereby driving the paper support board to move, and the paper adsorbed by multiple rubber suction cups also moves with it, and the paper is sent to the paper receiving wheel. The paper receiving wheel in the groove of the paper support board can directly contact the paper, thereby driving the paper to continue forward. At this time, the rubber suction cup stops the vacuum state and releases the paper, and the suction nozzle automatically falls back, causing the paper to fall onto the paper support board for paper feeding. This effectively solves the unstable paper feeding of traditional down-suction paper feeders, effectively reduces scratches on the paper, improves the equipment operation speed and paper feeding accuracy, and can also deliver paper normally for severely bent paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a diagram of the installation of a paper support board according to the first embodiment of the present application;

[0014] Figure 2 This is a top view of the paperboard support structure of the first embodiment of the present application;

[0015] Figure 3 This is a schematic structural diagram of a linear motor assembly according to the first embodiment of the present application;

[0016] Figure 4 This is a schematic diagram of the support plate structure of the first embodiment of this application;

[0017] Figure 5 This is a schematic structural diagram of an adsorption component according to the first embodiment of the present application;

[0018] Figure 6 This is an exploded view of the adsorption component structure of the first embodiment of the present application;

[0019] Figure 7 This is a schematic diagram of the movement of the nozzle piston in the first embodiment of the present application;

[0020] Figure 8 This is a schematic diagram of the adjustment block structure of the second embodiment of this application.

[0021] Description of the numbers in the figure:

[0022] 1 support frame, 2 positioning plate, 3 electric rotating rod, 4 paper receiving roller, 5 support bar, 6 housing, 7 linear motor stator, 8 linear motor mover, 9 support plate, 10 paper support board, 11 slide, 12 slider, 13 nozzle base, 14 nozzle housing, 15 nozzle piston, 16 rubber suction cup, 17 vacuum tube joint, 18 rotating motor, 19 screw, 20 adjustment block, 21 mounting frame. DETAILED DESCRIPTION

[0023] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0024] The first implementation method:

[0025] Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The invention discloses a concave paper feeding mechanism for a paper feeder, comprising two support frames 1 fixedly mounted on the upper end of the paper feeder body, a plurality of positioning plates 2 being fixedly connected to the rear end of the rear support frame 1, and an electric rotating rod 3 being fixedly connected to the rear end of the plurality of positioning plates 2. A technician in this field can select an appropriate type of electric rotating rod 3 according to actual needs, for example: JCW-0001, a plurality of paper receiving rollers 4 being fixedly sleeved on the outer surface of the electric rotating rod 3, and when feeding paper, the electric rotating rod 3 can be started to drive the plurality of paper receiving rollers 4 to rotate, thereby conveying the paper, a support bar 5 is provided in the support frame 1, and a linear motor assembly is fixedly connected to the upper ends of the two support bars 5, and the support bar 5 can fix the linear motor assembly, and the linear motor assembly comprises a shell 6 fixedly connected to the upper end of the support bar 5, a linear motor stator 7 is fixedly connected in the shell 6, a linear motor mover 8 is installed on the surface of the linear motor stator 7, and the upper ends of the plurality of linear motor movers 8 are fixedly connected to the installation The frame 21 is movable and penetrates the shell 6 and is fixedly connected to the support plate 9. Starting multiple linear motor movers 8 can drive the support plate 9 to move back and forth. The driving mode is shaftless reciprocating motion, which occupies a small space, has a fast speed, a simple structure and high repeatability positioning accuracy, thereby effectively lifting and feeding paper. The upper end of the support plate 9 is fixedly connected to a supporting paper board 10. A groove is carved on the end of the supporting paper board 10 close to the electric rotating rod 3. The paper receiving wheel 4 located in the middle of the electric rotating rod 3 corresponds to the groove. Through the groove and the paper receiving wheel 4 located in the middle of the electric rotating rod 3, more and smaller papers can be transferred, which improves the practicality of the paper feeding mechanism. A plurality of ventilation holes are carved on the surface of the supporting paper board 10. Through an external blowing device, gas can be blown to the paper through the ventilation holes, so that the paper is in a slightly suspended state, which is convenient for conveying paper. The surfaces of the support plate 9 and the supporting paper board 10 are both carved with mounting holes that match the suction nozzle shell 14. A in the figure is the paper feeder body.

[0026] Figure 4 、 Figure 5 、 Figure 6 and Figure 7 The drawing shows that: the left and right ends of the shell 6 are provided with a slide groove 11, and two sliders 12 are slidably connected in the slide groove 11. The end of the slider 12 away from the shell 6 is fixedly connected to the adsorption component, and the upper end of the adsorption component is fixedly passed through the support plate 9 and the support paper board 10 in sequence. The adsorption component includes a nozzle base 13 fixedly connected to the slider 12, and the slider 12 and the slide groove 11 can limit the nozzle base 13, effectively improving the stability of the nozzle base 13 when in use. The upper end of the nozzle base 13 is fixedly connected to the nozzle shell 14, and the inner cavity of the nozzle shell 14 is provided with a nozzle piston 15. The upper end of the nozzle piston 15 is fixedly connected to a rubber suction cup 16, which is located above the support paper board 10. The outer surface of the nozzle shell 14 is fixedly connected to a vacuum pipe joint 17. The four adsorption components are respectively located at the four corners of the support plate 9. The upper end of the nozzle shell 14 is fixedly passed through the support plate 9 and the support paper board 10 in sequence. The vacuum pipe joint 17 is communicated with the nozzle shell 14, and the vacuum pipe joint 17 is connected to the nozzle shell 14. The empty pipe joint 17 is fixedly connected to the external air source, and the external air source is controlled by a solenoid valve. When in use, the solenoid valve is energized, and the external air source sucks air, so that the air pressure in the suction nozzle housing 14 is negative, so that the rubber suction cup 16 can adsorb the paper. When the support plate 9 moves to the vicinity of the paper receiving roller 4, the solenoid valve is de-energized, and the air is quickly deflated, releasing the adsorption of the rubber suction cup 16 on the bottom single paper, and only the bottom single paper is delivered to the paper receiving roller 4. At this time, the rubber suction cup 16 stops the vacuum state and releases the paper. The suction nozzle automatically falls back and pulls the paper onto the supporting board 10 to perform the paper delivery action. After the linear motor rotor 8 drives the support plate 9 to reset, the solenoid valve is energized to continue to convey the next paper. This cycle realizes uninterrupted paper transportation. Since the suction nozzle piston 15 can move up and down inside the suction nozzle housing 14, even if the paper is greatly bent, it can be flattened by the suction nozzle piston 15, thereby effectively preventing the paper from being scratched. The paper is at point B in the figure.

[0027] When in use, the external air source sucks air so that the interior of the suction nozzle housing 14 is in a negative pressure gas state. At this time, the rubber suction cup 16 absorbs the paper, and then blows air through multiple air holes to separate the paper from the surface of the supporting paper board 10, so that the paper is in a slightly suspended state, thereby reducing the friction between the paper and the supporting paper board 10, effectively reducing the scratches on the paper, starting the linear motor mover 8 on the surface of the linear motor stator 7 to move, thereby driving the supporting paper board 10 to move, and the paper sucked by the multiple rubber suction cups 16 also moves accordingly, and the paper is sent to the paper receiving roller 4. The paper receiving roller 4 at the groove of the supporting paper board 10 can directly contact the paper, thereby driving the paper to continue forward. At this time, the rubber suction cup 16 stops the vacuum state and releases the paper, and the suction nozzle automatically falls back, pulling the paper onto the supporting paper board 10 to perform the paper feeding action, effectively solving the unstable paper feeding of the traditional down-suction paper feeder, effectively reducing the scratches on the paper, improving the equipment operation speed and paper feeding accuracy, and can also deliver the paper normally for paper with severe warping.

[0028] Second implementation method:

[0029] This embodiment is based on the first embodiment, and a rotary motor 18, a screw 19 and an adjustment block 20 are added. The rest of the parts are consistent with the first embodiment.

[0030] Figure 8 It is shown that: the linear motor stator 7 and the linear motor mover 8 are replaced with a rotary motor 18. Those skilled in the art can select a suitable model of the rotary motor 18 according to actual needs, for example: Y2-63M1-2-0.18KW. The rotary motor 18 is fixedly mounted on the front inner wall of the outer shell 6. The output end of the rotary motor 18 is fixedly connected to a screw 19. The rear end of the screw 19 is rotatably connected to the rear inner wall of the outer shell 6. The outer surface of the screw 19 is threadedly sleeved with an adjustment block 20. The upper end of the adjustment block 20 is fixedly connected to the lower end of the support plate 9.

[0031] When in use, the rotating motor 18 can be started to drive the screw 19 to rotate, so that the adjustment block 20 moves forward and backward, thereby driving the support plate 9 to move forward and backward. Compared with the linear motor mover 8 and the linear motor stator 7, this method can reduce the use of electrical parts and effectively save costs. The way to move the support plate 9 is not limited to these two, and the staff can choose according to actual needs.

[0032] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A concave paper feeding mechanism for a paper feeder, comprising two support frames (1) fixedly mounted on the upper end of the paper feeder body, characterized in that: The rear end of the support frame (1) on the rear side is fixedly connected to a plurality of positioning plates (2), and the rear ends of the plurality of positioning plates (2) are commonly fixedly connected to an electric rotating rod (3), and the outer surface of the electric rotating rod (3) is fixedly sleeved with a plurality of paper receiving wheels (4). A support bar (5) is provided in the support frame (1), and the upper ends of the two support bars (5) are commonly fixedly connected to a linear motor assembly, and the linear motor assembly includes a shell (6) fixedly connected to the upper end of the support bar (5), a linear motor stator (7) is fixedly connected in the shell (6), a linear motor mover (8) is installed on the surface of the linear motor stator (7), and the upper end of the linear motor mover (8) is fixedly connected to a mounting frame (21), and the upper end of the mounting frame (21) movably passes through the shell (6) and is fixedly connected to a support plate (9), and the upper end of the support plate (9) is fixedly connected to a paper support board (10); Both left and right ends of the shell (6) are provided with a chute (11), and two sliders (12) are slidably connected in the chute (11). The end of the slider (12) away from the shell (6) is fixedly connected to an adsorption component, and the upper end of the adsorption component is fixedly passed through the support plate (9) and the support paper board (10) in sequence; The adsorption assembly includes a nozzle base (13) fixedly connected to the slider (12), the upper end of the nozzle base (13) is fixedly connected to a nozzle shell (14), the inner cavity of the nozzle shell (14) is provided with a nozzle piston (15), the upper end of the nozzle piston (15) is fixedly connected to a rubber suction cup (16), the rubber suction cup (16) is located above the paper support (10), and the outer surface of the nozzle shell (14) is fixedly connected to a vacuum pipe joint (17).

2. The concave paper feeding mechanism for a paper feeder according to claim 1, characterized in that: A groove is cut into one end of the paper support plate (10) close to the electric rotating rod (3), and the paper receiving wheel (4) located in the middle of the electric rotating rod (3) corresponds to the groove.

3. The concave paper feeding mechanism for a paper feeder according to claim 1, characterized in that: The four adsorption components are respectively located at the four corners of the support plate (9), and the upper end of the suction nozzle shell (14) is fixedly passed through the support plate (9) and the support paper board (10) in sequence.

4. The concave paper feeding mechanism for a paper feeder according to claim 3, characterized in that: The surface of the supporting paper board (10) is provided with a plurality of ventilation holes, and the surfaces of the supporting plate (9) and the supporting paper board (10) are both provided with mounting holes matching the nozzle housing (14).

5. The concave paper feeding mechanism for a paper feeder according to claim 1, characterized in that: The vacuum pipe joint (17) is in communication with the nozzle housing (14), and the vacuum pipe joint (17) is fixedly connected to an external gas source.

6. The concave paper feeding mechanism for a paper feeder according to claim 1, characterized in that: The linear motor stator (7) and the linear motor mover (8) are replaced with a rotary motor (18), the rotary motor (18) is fixedly mounted on the front inner wall of the housing (6), the output end of the rotary motor (18) is fixedly connected to a screw rod (19), the rear end of the screw rod (19) is rotatably connected to the rear inner wall of the housing (6), the outer surface of the screw rod (19) is threadedly sleeved with an adjustment block (20), and the upper end of the adjustment block (20) is fixedly connected to the lower end of the support plate (9).

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