Paper feeding device

Abstract

The purpose of this invention is to disclose a paper feeding device, including a paper feeding assembly, a paper cutting assembly, and a paper output assembly. The paper feeding assembly includes a first paper feeding roller and a second paper feeding roller for clamping continuous paper. The paper cutting assembly includes a paper cutting roller and a paper cutting blade. The paper cutting roller has a first defect portion, and the paper cutting blade is disposed on the first defect portion. The paper cutting blade has several notches, and the paper cutting roller rotates at a first linear velocity. The paper output assembly includes an output roller and a paper pressing roller. The output roller rotates at a second linear velocity. The second linear velocity is greater than the first linear velocity. The technical effect is that the paper cutting blade has several notches, that is, the paper cutting blade has a discontinuous blade edge, so that the cut small paper still has a small connection with the subsequent continuous paper. The paper cutting roller rotates at the first linear velocity, and the output roller rotates at the second linear velocity. Through the difference between the second linear velocity and the first linear velocity, the cut small paper is separated from the continuous paper and spaced a certain distance apart.

Description

Technical Field

[0001] This invention relates to the field of paper bag forming technology, and in particular to a small paper feeding device. Background Technology

[0002] Paper bags with handles are usually made by gluing the handle to the bag body together with a small piece of paper. When making such paper bags, a small piece of paper needs to be provided to the automated bag forming device. Currently, the paper feeding device has the following defects: the structure is complex, which leads to low paper feeding efficiency and affects the overall forming efficiency of paper bags; or the paper is pasted manually, which leads to low paper bag forming efficiency.

[0003] Therefore, there is an urgent need to develop a simple and efficient paper feeding and pasting device to overcome the above-mentioned defects. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the purpose of this invention is to disclose a paper feeding device that, through a discontinuous paper cutter and differential speed setting, cuts the paper and transports it at a certain distance, making the paper feeding accurate and efficient.

[0005] To achieve the above-mentioned objectives, the present invention provides a paper feeding device, including a paper feeding assembly, a paper cutting assembly, and a paper output assembly; the paper feeding assembly includes a first paper feeding roller and a second paper feeding roller for clamping continuous paper; the paper cutting assembly includes a paper cutting roller and a paper cutting blade, the paper cutting roller having a first defect portion, the paper cutting blade being disposed at the first defect portion, the paper cutting blade having a plurality of notches, and the paper cutting roller rotating at a first linear velocity; the paper output assembly includes an output roller and a paper pressing roller, the output roller rotating at a second linear velocity; the second linear velocity is greater than the first linear velocity.

[0006] Preferably, support plates are symmetrically arranged at both ends of the first paper feeding roller, and the first paper feeding roller is rotatably arranged between the two support plates. The support plates are provided with a rotating shaft and a protrusion, and the rotating shaft is rotatably arranged on the side plate.

[0007] A first fixed shaft is provided below the protrusion, and an eccentric sleeve is provided on the first fixed shaft. The eccentric sleeve cooperates with the protrusion, and the eccentric sleeve is provided with a handle.

[0008] Preferably, the support plate is provided with an inclined surface, a second fixed shaft is provided on one side of the inclined surface, a U-shaped block is provided on the second fixed shaft, and a first spring is provided between the U-shaped block and the inclined surface.

[0009] Preferably, a second defect portion is provided on the paper break roller, and the second defect portion is provided on the symmetrical plane of the first defect portion.

[0010] Preferably, the paper cutter is provided with several oblong holes.

[0011] Preferably, several grooves are provided on the surface of the paper output roller.

[0012] Preferably, a small paper support plate is provided at the bottom of the paper output roller, and the small paper support plate has several openings.

[0013] Preferably, the paper output assembly further includes a first pulley, a second pulley, a third pulley, and a belt. The first pulley is disposed on one side of the pressure roller, the second pulley and the third pulley are disposed on the bottom side of the paper output roller, and the belt rotates cyclically around the first pulley, the pressure roller, the paper output roller, the third pulley, and the second pulley, and the belt passes through the opening.

[0014] Preferably, the first pulley is further provided with a tensioning mechanism, which includes a support rod and a tensioning block. The first end of the tensioning block is fastened to the support rod by a screw, and the second end of the tensioning block is rotatably connected to the first pulley.

[0015] Preferably, a lever is provided on the paper output side of the paper output roller, and the lever is aligned with the groove.

[0016] Compared with the prior art, the technical effects of the present invention are as follows:

[0017] (1) The paper cutter is set with several notches, that is, the paper cutter has a non-continuous blade, so that there is still a small connection between the cut small paper and the subsequent continuous paper. The small connection can ensure that the cut small paper can continue to move forward, and can also ensure that the subsequent paper is pulled off to form an independent small paper.

[0018] (2) The paper cutting roller rotates at the first linear speed and the paper output roller rotates at the second linear speed. The second linear speed is greater than the first linear speed. Through the difference between the second linear speed and the first linear speed, the small paper being cut is separated from the continuous paper and spaced a certain distance apart, which provides a basis for feeding small paper sheets one by one and pasting small paper sheets in the future. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the paper feeding device of the present invention.

[0021] Figure 2 This is a schematic diagram of the handle and the small piece of paper of the present invention.

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the paper feeding device of the present invention.

[0023] Figure 4 This is a three-dimensional structural diagram of the paper output component of the present invention.

[0024] Figure 5 This is a cross-sectional schematic diagram of the paper feeding device of the present invention.

[0025] Figure 6 This is a cross-sectional schematic diagram of the paper-cutting assembly of the present invention.

[0026] Figure 7 This is a partially enlarged cross-sectional view of the paper-cutting assembly of the present invention.

[0027] The components include: 1. Paper feeding assembly; 11. First paper feeding roller; 111. Support plate; 1111. Rotating shaft; 1112. Protrusion; 1113. Inclined surface; 12. Second paper feeding roller; 13. Side plate; 14. First fixed shaft; 141. Eccentric sleeve; 142. Handle; 15. Second fixed shaft; 151. U-shaped block; 2. Paper cutting assembly; 21. Paper cutting roller; 211. First defect; 212. Second defect; 22. Paper cutting knife; 221. Notch; 222. Waist-shaped hole; 223. Protrusion; 3. Paper output assembly; 31. Paper output roller; 311. Groove; 312. Small paper support. 313. Board; 32. Paper pressure roller; 33. First pulley; 34. Second pulley; 35. Third pulley; 36. Belt; 37. Support rod; 38. Tensioning block; 381. First end; 382. Second end; 383. Screw; 384. Round hole; 385. Notch; 39. Paddle; 391. Arc-shaped tip; 4. Grip finger; 5. Paper transfer roller; 51. First arc-shaped paper transfer part; 511. Inclined surface; 512. First gripper finger; 52. Second arc-shaped paper transfer part; 521. Inclined surface; 522. Second gripper finger; 6. Handle; 7. Bag body; 8. Paper pasting roller; 9. Small paper. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "lengthwise", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. Embodiment 1

[0030] Refer Figures 1 to 6 As shown, this embodiment discloses a specific implementation manner of a small paper feeding device.

[0031] The small paper feeding device, refer to Figures 1 to 6 , includes a paper feeding component 1, a paper cutting component 2 and a paper discharging component 3; the paper feeding component 1 includes a first paper feeding roller 11 and a second paper feeding roller 12 for clamping and feeding continuous paper; the paper cutting component 2 includes a paper cutting roller 21 and a paper cutting knife 22, the paper cutting roller 21 is provided with a first defective part 211, the paper cutting knife 22 is arranged in the first defective part 211, the paper cutting knife 22 is provided with a plurality of notches 221, and the paper cutting roller 21 rotates at a first linear speed; the paper discharging component 3 includes a paper discharging roller 31 and a paper pressing roller 32, and the paper discharging roller 31 rotates at a second linear speed; the second linear speed is greater than the first linear speed.

[0032] Specifically, refer to Figures 1 to 6 , the working principle of the small paper feeding device is as follows: the first paper feeding roller 11 with power and the second paper feeding roller 12 with power clamp and feed continuous paper into the paper cutting component 2. During the rotation of the paper cutting roller 21 of the paper cutting component 2 at the first linear speed, the continuous paper is cut into small papers by the paper cutting knife 22 with a plurality of notches 221, but the corresponding parts of the cut small papers and the notches 221 are not cut off. The paper cutting roller 21 continues to convey the small papers to the paper discharging component 3. The small papers are clamped between the paper discharging roller 31 and the paper pressing roller 32. The paper discharging roller 31 and the paper pressing roller 32 rotate at the second linear speed. Because the second linear speed is greater than the first linear speed, the cut small papers are disconnected from the continuous paper through the speed difference between the two. At the same time, due to the speed difference, there is a certain distance between the cut small papers, and this distance is determined by the interval of using small papers subsequently.

[0033] Refer to Figures 1 to 6To facilitate the placement of continuous paper between the first feed roller 11 and the second feed roller 12, the first feed roller 11 is equipped with a clutch mechanism, the specific structure of which is as follows: Support plates 111 are symmetrically arranged at both ends of the first feed roller 11, and the first feed roller 11 is rotatably disposed between the two support plates 111. Each support plate 111 has a rotating shaft 1111 and a protrusion 1112. The rotating shaft 1111 is rotatably disposed on a side plate 13. A first fixed shaft 14 is arranged below the protrusion 1112, and an eccentric sleeve 141 is arranged on the first fixed shaft 14. The eccentric sleeve 141 cooperates with the protrusion 1112, and the eccentric sleeve 141 has a handle 142. The support plate 111 has an inclined surface 1113, and a second fixed shaft 15 is arranged on one side of the inclined surface 1113. The second fixed shaft 15 has a U-shaped block 1. 51. A first spring (obscured, not shown) is provided between the U-shaped block 151 and the inclined surface 1113. The specific working principle is as follows: A first spring is provided between the U-shaped block 151 and the inclined surface 1113. When the handle 142 is pressed down, the eccentric sleeve 141 rotates around the first fixed shaft 14 and drives the protrusion 1112 upward, thereby causing the support plate 111 to swing around the rotating shaft 1111, thereby causing the first paper feed roller 11 to approach the second paper feed roller 12. The first spring presses the inclined surface 1113, thereby causing the first paper feed roller 11 to rotate relatively stably. When the handle 142 is pulled up, the eccentric sleeve 141 rotates around the first fixed shaft 14 and causes the protrusion 1112 to move downward. Under the action of the first spring force, the support plate 111 is pushed to swing around the rotating shaft 1111, thereby causing the first paper feed roller 11 to move away from the second paper feed roller 12.

[0034] The specific structure of the paper break roller is as follows: See Figures 1 to 6 The paper-cutting roller 21 has a first defect 211 and a second defect 212. The second defect 212 is located on the symmetrical plane of the first defect 211. The defect amounts of the first defect 211 and the second defect 212 are approximately equal, so that the paper-cutting roller 21 does not become eccentric during rotation and always remains in a stable and balanced rotation state. The paper-cutting blade 22 with several notches 221 is fixed to the first defect 211 through several waist-shaped holes 222. In order to fix the force direction of the blade of the paper-cutting blade 22, a protrusion 223 is provided at the bottom of the first defect 211. A pad is provided between the protrusion 223 and the paper-cutting blade 22. The paper-cutting blade 22 is supported by the pad. The height of the blade of the paper-cutting blade 22 can be adjusted by adjusting the thickness of the pad.

[0035] The structure of paper output assembly 3 is as follows: See Figures 1 to 6The paper output assembly 3 includes an output roller 31 and a pressure roller 32. A plurality of grooves 311 are provided on the surface of the output roller 31, surrounding the entire surface of the output roller 31. A small paper support plate 312 is provided at the bottom of the output roller 31, and the small paper support plate 312 has a plurality of openings 313. The paper output assembly 3 also includes a first pulley 33, a second pulley 34, a third pulley 35, and a belt 36. The first pulley 33 is located on one side of the pressure roller 32, the second pulley 34 and the third pulley 35 are located on the bottom side of the output roller 31, and the belt 36 surrounds the pressure roller 32. The belt 36 rotates cyclically around the first pulley 33, the pressure roller 32, the output roller 31, the third pulley 35, and the second pulley 34, and passes through the opening 313. The first pulley 33 is also provided with a tensioning mechanism, which includes a support rod 37 and a tensioning block 38. The first end 381 of the tensioning block 38 is fastened to the support rod 37 by a screw 383, and the second end 382 of the tensioning block 38 is rotatably connected to the first pulley 33. A paddle 39 is provided on the paper output side of the output roller 31, and the paddle 39 is aligned with the groove 311.

[0036] The working principle of the paper output assembly 3 is as follows: See Figures 1 to 6The paper feed roller 31 and the paper pressure roller 32 clamp the small paper at a second linear velocity greater than the first linear velocity and pull it off from the subsequent paper. The small paper is then sandwiched between the belt 36 and the surface of the paper feed roller 31. In a preferred embodiment, the surface of the paper feed roller 31 is provided with six grooves 311. Three belts 36 wrap the small paper around the surface of the paper feed roller 31, with the belts 36 located between two adjacent grooves 311. To form a circulation loop for the belts 36 and to adjust the tension of the belts 36, the belts 36 feed the small paper to the small paper support plate 312. After passing through the three openings 313 of the small paper support plate 312, the paper passes successively through the third pulley 35 and the second pulley 34, then through the first pulley 33 and the pressure roller 32 before entering the surface of the output roller 31. The belt 36 forms a cycle, repeating in sequence. The tension of the belt 36 is achieved by adjusting the position of the first pulley 33. The tension adjustment principle is as follows: a support rod 37 is set on the side plate 13, and three tensioning blocks 38 with the same structure are set on the support rod. The tensioning blocks 38 have round holes 384 and notches 385. By turning the screws 383, The notch 385 is narrowed, thereby allowing the circular hole 384 to grip the tensioning block 38; the first end 381 of the tensioning block 38 is fastened to the support rod 37 by a screw 383, i.e., by tightening the screw 383, the circular hole of the tensioning block 38 grips the support rod 37; the second end 382 of the tensioning block 38 is rotatably connected to the first pulley 33; when it is necessary to increase the tension of the belt 36, the screw 383 is loosened, allowing the circular hole 384 to rotate around the support rod 37, and the tensioning block 38 is moved upward, raising the position of the first pulley 33 and tensioning the belt 36. After step 6, tighten screw 383 to make the round hole 384 grip the tensioning block 38, thereby fixing the position of the first pulley 33 and increasing the tension of the belt 36. Conversely, when it is necessary to reduce the tension of the belt 36, loosen screw 383 so that the round hole 384 can rotate around the support rod 37, move the tensioning block 38 downward, lower the position of the first pulley 33, and reduce the tension of the belt 36. Then tighten screw 383 again to make the round hole 384 grip the tensioning block 38, thereby fixing the position of the first pulley 33 and reducing the tension of the belt 36.

[0037] The following describes the specific process of pasting the small pieces of paper: See [link / reference] Figures 1 to 6(1) First, a handle 6 is pasted onto the surface of the bag body 7, and the bag body with the handle 6 is formed on the paper pasting roller 8; (2) Continuous paper enters between the first paper feeding roller 11 and the second paper feeding roller 12, and feeds the continuous paper into the paper cutting roller 21; (3) The paper cutting roller 21 is provided with a first defect 211, and a paper cutting knife 22 with several notches 221 is fixed in the first defect 211. The paper cutting roller 21 rotates at a first linear speed, dividing the continuous paper into a partially connected first small paper, a second small paper... a nth small paper; (4) After the partially connected small paper enters the pressure roller 32 and the output roller 31, it is pressed onto the surface of the belt 36 and the output roller 31. Since the second linear speed of the output roller 31 is greater than the first linear speed, The speed difference will break the small paper pieces that are connected and make a certain gap between each small paper piece; (5) The broken small paper pieces surround the surface of the paper output roller 31 and are clamped on the surface of the belt 36 and the paper output roller 31. When the small paper 9 is clamped to the small paper support plate 312, the small paper 9 is pushed off the surface of the paper output roller 311 by the paddle 39 aligned with the groove 311 and conveyed to the next process; (6) The next process is to apply glue to the surface of the small paper 9. The specific technical solution of the glue application is not directly related to this application and will not be described in detail here. The paper transfer roller 5 of the next process clamps the small paper 9 with the finger 4 and then transmits it to the glue application process; (7) After the glue application is completed, the glued small paper 9 is then transmitted to the paper sticker roller 8 and finally the small paper 9 is glued to the handle 6.

[0038] It should be further explained that, see [link / reference] Figure 7 The paddle 39 is provided with an arc-shaped tip 391, which extends into the groove 311. The arc-shaped tip 391 and the small paper support plate 312 form a first slit, through which the small paper exits. After exiting, the small paper enters the transfer roller 5, which includes a first arc-shaped transfer section 51 and a second arc-shaped transfer section 52. During rotation, the transfer roller 5 alternately transfers the small paper to the next process via the first arc-shaped transfer section 51 and the second arc-shaped transfer section 52. The first arc-shaped transfer section 51 is provided with an inclined surface 511 and a first gripper 512. When the first gripper 512 opens, it... A second slit is formed between the inclined surfaces 511. After the small paper exits through the first slit, it enters the second slit. When the first gripper 512 closes, it clamps the small paper between the inclined surface 511 and the first gripper 512. Similarly, the second arc-shaped paper transfer part 52 is provided with an inclined surface 521 and a second gripper 522. The second gripper 522 and the first gripper 512 are arranged diagonally. When the second gripper 522 opens, a second slit is formed between it and the inclined surface 521. After the small paper exits through the first slit, it enters the second slit. When the second gripper 522 closes, it clamps the small paper between the inclined surface 521 and the second gripper 522.

Claims

1. A sheet feeding device characterized by comprising: The paper feeding assembly, the paper cutting assembly and the paper discharging assembly are included. The paper feeding assembly includes a powered horizontal first paper feeding roller and a powered horizontal second paper feeding roller for clamping and feeding continuous paper. The paper cutting assembly includes a horizontal paper cutting roller and a horizontal paper cutting knife. The paper discharging assembly includes a paper discharging roller, a paper pressing roller, a first belt pulley, a second belt pulley, a third belt pulley and a belt. The second linear speed is greater than the first linear speed. A plurality of grooves are arranged on the surface of the paper discharging roller. A plurality of openings are arranged on the bottom of the paper discharging roller. A plurality of slits are arranged on the surface of the paper discharging roller. The slits are aligned with the grooves. The slits are aligned with the grooves. The slits are aligned with the grooves. The slits are aligned with the grooves.

2. The apparatus of claim 1 wherein, The slits are aligned with the grooves. The slits are aligned with the grooves.

3. The apparatus of claim 2 wherein the first and second rollers are mounted on a common shaft. The slits are aligned with the grooves.

4. The apparatus of claim 1 wherein, The slits are aligned with the grooves.

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