Automatic feeding and paper feeding mechanism for paper printing

Abstract

The utility model discloses an automatic feeding and paper feeding mechanism for paper printing, which comprises a frame, a lifting table is arranged in the frame, two supporting plates for stacking paper are arranged on the lifting table, and a transmission part for driving the lifting table to vertically lift is arranged on the frame. The transmission part comprises a first motor, a gear set, a first transmission shaft, a first chain and a second chain, the first transmission shaft is rotationally connected with the frame, and the first transmission shaft is in transmission connection with an output shaft of the first motor through the gear set. The lifting table can be driven by the transmission part to ascend gradually, so that paper moves upwards synchronously, then the single piece of paper is adsorbed by the grabbing device and moves towards the conveying device, the paper is driven by the conveying device to achieve the action of automatic feeding to the printing machine, and the paper feeding speed is obviously increased.

Description

Technical Field

[0001] The utility model discloses an automatic paper feeding mechanism for paper printing, belonging to the technical field of printing equipment. Background Art

[0002] Traditional printing refers to the technology of mass-producing the original text, pictures, photos, and other manuscripts by transferring ink to the surface of materials such as paper, fabric, and leather through processes such as plate making, inking, and pressurization. In the traditional paper printing process, a printing press is often used to print on the paper surface. The printing press is usually composed of four parts: a paper feeder, a positioning and transfer device, a printing device, and a paper delivery device. Before printing, the paper is generally manually moved to the loading port of the printing press, and then fed into the printing press via a feed roller. Manual handling is time-consuming and labor-intensive, and when feeding paper, it is easy for multiple sheets of paper to be fed at once, causing paper jams and affecting the printing effect. Utility Model Content

[0003] The purpose of the utility model is to solve the problems in the prior art and to provide an automatic paper feeding mechanism for paper printing.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: an automatic paper feeding mechanism for paper printing, comprising a frame, a lifting platform is provided in the frame, and two support plates for stacking papers are provided on the lifting platform, and a transmission member is provided on the frame for driving the lifting platform to vertically lift the paper, and the transmission member comprises a first motor, a gear set, a first transmission shaft, a first chain and a second chain, the first transmission shaft is rotatably connected to the frame, and the first transmission shaft and the output shaft of the first motor are transmitted through the gear set, the first chain and the second chain are each provided with two, and one end of both is connected to the four corners of the lifting platform, the first transmission shaft is provided with a first sprocket driven by the first chain and the second chain, one end of the first chain and the second chain is connected to a suspended counterweight block after passing around the first sprocket, the guide sprocket on the frame for guiding the second chain, a grabbing device is provided above the support plate corresponding to the frame, and a conveying device is provided on one side of the frame.

[0005] Preferably, the grasping device includes a mounting frame, a cylinder, a fixed block, a guide rod, a mounting rod and a suction cup, the mounting frame is fixed on the frame, the cylinder is fixed on the mounting frame, the fixed block is fixed on the piston of the cylinder, one end of the guide rod is fixedly connected to the fixed block, and the other end passes through the mounting frame, the mounting rod is fixedly connected to the fixed block by bolts, and a plurality of suction cups are provided, and are fixed on the mounting rod at equal intervals.

[0006] Preferably, a clamping block is provided on the mounting rod, a notch is provided on one side of the clamping block for the mounting rod to pass through, and the two sides of the clamping block corresponding to the notch are fixed by bolts, and the suction cup is fixed to one end of the clamping block.

[0007] Preferably, a baffle is provided at one end of the mounting frame away from the cylinder, and a universal wheel is provided at the bottom of the frame.

[0008] Preferably, the frame is provided with a limiting member for positioning the relative positions of the two support plates, and the limiting member includes a right-angle plate, a cross bar and a stop bar. There are two right-angle plates and two cross bars, and a U-shaped block is provided on one side of the right-angle plate. The two cross bars are fixedly connected to the frame after passing through the U-shaped blocks of different heights. There are multiple stop bars, and the stop bars are fixedly connected to the two cross bars by bolts.

[0009] Preferably, the conveying device includes a second motor, a second transmission shaft, a second sprocket, a third chain and a conveyor belt. Two second transmission shafts are provided, and the two are installed on the frame for parallel rotation. The conveyor belt is wound around the outside of the two second transmission shafts. The second motor is fixed on the frame. Two second sprockets are provided and are respectively fixed on the second transmission shaft and the output shaft of the second motor. The third chain is sleeved on the outside of the two second sprockets.

[0010] Preferably, a paper pressing member is provided above the conveyor belt, and the paper pressing member includes a fixed rod and a roller. There are two fixed rods and they are installed side by side on the frame. There are multiple rollers and they are rotatably installed on the two fixed rods.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By setting up a lifting platform, transmission parts, grabbing devices and conveying devices, the transmission parts can drive the lifting platform to rise gradually, so that the paper moves upward synchronously, and then the grabbing device absorbs the single sheet of paper and moves it toward the conveying device, so that the paper is automatically loaded and fed to the printing press under the drive of the conveying device. At the same time, the cylinder drives the suction cup to reciprocate to grab the paper, ensuring that only a single sheet of paper is grabbed each time, there will be no printing jams, and the speed of loading and feeding can also be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an automatic paper feeding mechanism for paper printing in this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of an automatic paper feeding mechanism for paper printing in this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic structural diagram of the position limiting member in the present utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the grabbing device in the present utility model;

[0017] Figure 5 This is a schematic structural diagram of the conveying device in the present utility model;

[0018] Figure numerals: 1. frame; 2. guide sprocket; 3. second chain; 4. first sprocket; 5. first chain; 6. first transmission shaft; 7. grabbing device; 8. conveying device; 9. gear set; 10. first motor; 11. universal wheel; 12. limit member; 13. lifting platform; 14. support plate; 15. conveyor belt; 16. paper pressing member; 17. second motor; 18. guide rod; 19. clamping block; 20. fixing block; 21. suction cup; 22. mounting rod; 23. cylinder; 24. mounting frame; 25. baffle; 26. right-angle plate; 27. cross bar; 28. baffle rod; 29. ​​U-shaped block; 30. fixing rod; 31. roller; 32. second transmission shaft; 33. second sprocket; 34. third chain. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1-Figure 5 As shown, an automatic feeding mechanism for paper printing, an automatic feeding mechanism for paper printing, includes a frame 1, a lifting platform 13 is provided in the frame 1, two support plates 14 for stacking paper are provided on the lifting platform 13, a transmission member for driving the lifting platform 13 to lift vertically is provided on the frame 1, the transmission member includes a first motor 10, a gear set 9, a first transmission shaft 6, a first chain 5 and a second chain 3, the first transmission shaft 6 is rotatably connected to the frame 1, and the first transmission shaft 6 and the output shaft of the first motor 10 are connected through the gear set 9, two first chains 5 and second chains 3 are each provided, and one end of both is connected to the four corners of the lifting platform 13, a first sprocket 4 is provided on the first transmission shaft 6 to transmit the first chain 5 and the second chain 3, one end of the first chain 5 and the second chain 3 passes around the first sprocket 4 and is connected to a suspended counterweight, a guide sprocket 2 on the frame 1 to guide the second chain 3, a grabbing device 7 is provided above the support plate 14 of the frame 1, and a conveying device 8 is provided on one side of the frame 1.

[0021] like Figure 2 and Figure 3 As shown, the grabbing device 7 includes a mounting frame 24, a cylinder 23, a fixed block 20, a guide rod 18, a mounting rod 22 and a suction cup 21. The mounting frame 24 is fixed to the frame 1, the cylinder 23 is fixed to the mounting frame 24, the fixed block 20 is fixed to the piston of the cylinder 23, one end of the guide rod 18 is fixedly connected to the fixed block 20, and the other end passes through the mounting frame 24, the mounting rod 22 is fixedly connected to the fixed block 20 by bolts, a plurality of suction cups 21 are provided, and are fixed on the mounting rod 22 at equal intervals, the cylinder 23 can drive the fixed block 20 to perform a reciprocating telescopic movement, the guide rod 18 can guide the movement of the fixed block 20, so that the fixed block 20 drives the mounting rod 22 to move synchronously, the suction cup 21 can suck a single sheet of paper and transfer it to the conveying device 8, thereby realizing the loading action, and the height of the suction cup 21 remains basically unchanged, and the transmission member can drive the lifting platform 13 and the paper to gradually rise during the loading process, so that the suction cup 21 can suck the paper every time.

[0022] like Figure 3 As shown, a clamping block 19 is provided on the mounting rod, and a notch is provided on one side of the clamping block 19 for the mounting rod 22 to pass through, and the two sides of the clamping block 19 corresponding to the notch are fixed by bolts, and the suction cup 21 is fixed to one end of the clamping block 19. The clamping block 19 can be used to facilitate the disassembly and assembly of the suction cup 21 and the adjustment of its relative position on the mounting rod 22. The structure is simple and the operation is convenient.

[0023] like Figure 2 and Figure 3 As shown, a baffle 25 is provided at one end of the mounting frame 24 away from the cylinder 23. The baffle 25 can align the stacked papers, so as to ensure that there will be no skewed transportation during paper feeding. A universal wheel 11 is provided at the bottom of the frame 1, which can push the entire frame 1 to the required position for easy transportation and movement.

[0024] like Figure 1 and Figure 4 As shown, the frame 1 is provided with a limit member 12 for positioning the relative positions of the two support plates 14. The limit member 12 includes a right-angle plate 26, a cross bar 27 and a baffle 28. There are two right-angle plates 26 and two cross bars 27. A U-shaped block 29 is provided on one side of the right-angle plate 26. The two cross bars 27 are fixedly connected to the frame 1 after passing through the U-shaped blocks 29 of different heights. There are multiple baffles 28, and the baffles 28 are fixedly connected to the two cross bars 27 by bolts. The two right-angle plates 26 can position one end of the two support plates 14, so that the support plate 14 will not move during the process of vertical descent and paper transportation to the support plate 14, so as to ensure the accurate position of paper discharge, and the baffle 28 can align one end of the paper.

[0025] like Figure 1 、 Figure 2 and Figure 5 As shown, the conveying device 8 includes a second motor 17, a second transmission shaft 32, a second sprocket 33, a third chain 34 and a conveyor belt 15. Two second transmission shafts 32 are provided, and the two are mounted on the frame 1 for parallel rotation. The conveyor belt 15 is wound around the outside of the two second transmission shafts 32. The second motor 17 is fixed to the frame 1. Two second sprockets 33 are provided and are respectively fixed on the second transmission shaft 32 and the output shaft of the second motor 17. The third chain 34 is sleeved on the outside of the two second sprockets 33. The second motor 17 drives the second sprocket 33 and the third chain 34 to rotate, so that one of the second transmission shafts 32 is rotated. The dynamic shaft 32 rotates and causes the conveyor belt 15 to rotate, so that when the paper grabbed by the suction cup 21 is placed on the conveyor belt 15, the paper can be smoothly transported to the printing press, thereby realizing the paper feeding action. A paper pressing member 16 is provided above the conveyor belt 15. The paper pressing member 16 includes a fixed rod 30 and a roller 31. There are two fixed rods 30 and are installed side by side on the frame 1. There are multiple rollers 31 and are rotatably installed on the two fixed rods 30. The paper is pressed by the roller 31 during transportation, which can make the paper and the conveyor belt 15 maintain the same speed so that the paper can smoothly enter the printing press.

[0026] Working principle: After the paper is stacked on the support plate 14, the cylinder 23 drives the suction cup 21 to reciprocate and extend, so that the suction cup 21 first sucks the single paper and maintains this state for a distance before placing it on the conveyor belt 15, so that the paper enters between the conveyor belt 15 and the roller 31, and is driven by the conveyor belt 15 to maintain synchronous movement, thereby realizing the automatic loading and feeding of the paper. When the paper on the support plate 14 is reduced, the transmission part drives the lifting platform 13 to gradually rise, so that the paper can be continuously grabbed by the suction cup 21, thus ensuring the paper feeding speed.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An automatic paper feeding mechanism for paper printing, comprising a frame (1), characterized in that: A lifting platform (13) is provided in the frame (1), two support plates (14) for stacking paper are provided on the lifting platform (13), a transmission member for driving the lifting platform (13) to vertically lift is provided on the frame (1), the transmission member comprises a first motor (10), a gear set (9), a first transmission shaft (6), a first chain (5) and a second chain (3), the first transmission shaft (6) is rotatably connected to the frame (1), and the first transmission shaft (6) and the output shaft of the first motor (10) are transmission-connected via the gear set (9), the first chain (5) and the second chain (3) are rotationally connected. Two chains (3) are provided, and one end of each is connected to the four corners of the lifting platform (13); the first transmission shaft (6) is provided with a first sprocket (4) for transmission with the first chain (5) and the second chain (3); one end of the first chain (5) and the second chain (3) passes around the first sprocket (4) and is connected to a suspended counterweight; a guide sprocket (2) for guiding the second chain (3) is provided on the frame (1); a grabbing device (7) is provided above the corresponding support plate (14) of the frame (1), and a conveying device (8) is provided on one side of the frame (1).

2. The automatic paper feeding mechanism for paper printing according to claim 1, characterized in that: The gripping device (7) comprises a mounting frame (24), a cylinder (23), a fixing block (20), a guide rod (18), a mounting rod (22) and a suction cup (21); the mounting frame (24) is fixed on the frame (1); the cylinder (23) is fixed on the mounting frame (24); the fixing block (20) is fixed on the piston of the cylinder (23); one end of the guide rod (18) is fixedly connected to the fixing block (20), and the other end is arranged through the mounting frame (24); the mounting rod (22) is fixedly connected to the fixing block (20) by bolts; a plurality of suction cups (21) are provided and fixed on the mounting rod (22) at equal intervals.

3. The automatic paper feeding mechanism for paper printing according to claim 2, characterized in that: A clamping block (19) is provided on the mounting rod (22), a notch for the mounting rod (22) to pass through is provided on one side of the clamping block (19), and two sides of the clamping block (19) corresponding to the notch are fixed by bolts, and the suction cup (21) is fixed to one end of the clamping block (19).

4. The automatic paper feeding mechanism for paper printing according to claim 3, characterized in that: A baffle (25) is provided at one end of the mounting frame (24) away from the cylinder (23), and a universal wheel (11) is provided at the bottom of the frame (1).

5. The automatic paper feeding mechanism for paper printing according to claim 4, characterized in that: The frame (1) is provided with a limiting member (12) for positioning the relative positions of the two support plates (14). The limiting member (12) comprises a right-angle plate (26), a cross bar (27) and a blocking rod (28). Two right-angle plates (26) and two cross bars (27) are provided. A U-shaped block (29) is provided on one side of the right-angle plate (26). The two cross bars (27) are fixedly connected to the frame (1) after passing through the U-shaped blocks (29) of different heights. A plurality of blocking rods (28) are provided, and the blocking rods (28) are fixedly connected to the two cross bars (27) by bolts.

6. The automatic paper feeding mechanism for paper printing according to claim 1, characterized in that: The conveying device (8) comprises a second motor (17), a second transmission shaft (32), a second sprocket (33), a third chain (34) and a conveyor belt (15), wherein two second transmission shafts (32) are provided and the two are mounted on the frame (1) for parallel rotation, the conveyor belt (15) is wound around the outside of the two second transmission shafts (32), the second motor (17) is fixed on the frame (1), two second sprockets (33) are provided and are fixed on the second transmission shaft (32) and the output shaft of the second motor (17), respectively, and the third chain (34) is sleeved on the outside of the two second sprockets (33).

7. The automatic paper feeding mechanism for paper printing according to claim 6, characterized in that: A paper pressing member (16) is provided above the conveyor belt (15), and the paper pressing member (16) includes a fixed rod (30) and a roller (31). Two fixed rods (30) are provided and are installed side by side on the frame (1). A plurality of rollers (31) are provided and are rotatably installed on the two fixed rods (30).

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