Single-sheet paper conveying platform with quick positioning mechanism

Abstract

The utility model discloses a single paper conveying platform with a quick positioning mechanism, which comprises a frame, a conveying platform is fixedly connected to the bottom of one end of the frame, and the center line of the frame and the center line of the conveying platform are on the same vertical plane. According to the single-sheet paper conveying platform with the rapid positioning mechanism, by arranging the positioning baffles, before paper conveying, stacked paper is placed in the middle of the top end of the lifting table, then a rotating wheel is rotated to drive a bidirectional lead screw to rotate, and the bidirectional lead screw drives the two positioning baffles to move towards the middle through external threaded sleeves; the positioning baffles are attached to the two sides of the paper so that the paper can be effectively positioned, the fixing rods in the rack are attached to the interiors of the limiting sleeves so that the positioning baffles can be effectively limited and prevented from shaking, the fixing cylinders on one side of the rack are attached to the exteriors of the rotating wheels so that friction force can be enhanced, and the rotating wheels are prevented from rotating; the problem that paper cannot be conveniently positioned is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper feeding platforms, in particular to a single-sheet paper feeding platform with a quick positioning mechanism. Background Art

[0002] In the production process of the printing industry, large printing equipment is equipped with special paper feeding devices to achieve the effect of automatically conveying printing paper, thereby improving printing efficiency. The paper feeding platform is a device that can automatically and continuously convey paper and is widely used in the printing industry;

[0003] However, there are still some defects in the paper feeding platforms used in the printing industry. During use, it is not convenient to position the stacked paper stacks, resulting in easy deviation of the paper during conveyance, thereby affecting the subsequent printing effect;

[0004] Now, a new type of single-sheet paper feeding platform with a quick positioning mechanism is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a single-sheet paper feeding platform with a quick positioning mechanism to solve the problem of inconvenient paper positioning proposed in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A single-sheet paper feeding platform with a quick positioning mechanism, including a frame. The bottom of one end of the frame is fixedly connected with a conveying platform. The center line of the frame and the center line of the conveying platform are in the same vertical plane. The top end inside the frame is fixedly connected with a top plate. A positioning mechanism for positioning the paper is arranged inside the frame;

[0007] The positioning mechanism includes a bidirectional lead screw. The bottom end inside the frame is movably connected with a bidirectional lead screw. A group of positioning baffles are respectively arranged on both sides inside the frame. The bottom end of one side of the positioning baffle is fixedly connected with a threaded sleeve. The bottom end of one side of the positioning baffle is fixedly connected with a limiting sleeve. The bottom end inside the frame is fixedly connected with a fixed rod. The bottom end of one side of the frame is fixedly connected with a fixed cylinder. The bidirectional lead screw penetrates through one side of the frame and extends to the inside of the fixed cylinder and is fixedly connected with a runner.

[0008] Preferably, the runner is movably connected with the fixed cylinder, and the threaded sleeve is threadedly connected with the bidirectional lead screw.

[0009] Preferably, the limiting sleeve is slidably connected with the fixed rod, and the center line of the runner and the center line of the bidirectional lead screw are in the same vertical plane.

[0010] Preferably, both ends of both sides of the bottom end inside the frame are fixedly connected with fixed sleeves. A spring is fixedly connected to the bottom end inside the fixed sleeve. The top end of the spring is fixedly connected with a connecting column. The top end of the connecting column is fixedly connected with a lifting platform. Side grooves are formed on both sides of the lifting platform.

[0011] Preferably, the connecting column is movably connected with the fixed sleeve. The center line of the lifting platform and the center line of the conveying platform are in the same vertical plane.

[0012] Preferably, a cylinder is fixedly connected to the top end of the top plate. The output end of the cylinder penetrates through the top plate and is fixedly connected with a T-shaped installation box. Connecting plates are fixedly connected to both sides of the T-shaped installation box. A limit telescopic rod is fixedly connected to the top end of the connecting plate. A reduction motor is fixedly connected to one side inside the T-shaped installation box. The output end of the reduction motor is fixedly connected with a first sprocket. A second sprocket is arranged at the bottom end inside the T-shaped installation box. A connecting shaft is fixedly connected to the inside of the second sprocket. The connecting shaft penetrates through both sides of the T-shaped installation box and is respectively fixedly connected with a group of rubber wheels. A transmission chain is movably connected to the outside of the first sprocket.

[0013] Preferably, the transmission chain is movably connected with the second sprocket. The center line of the connecting shaft and the center line of the rubber wheel are in the same horizontal plane.

[0014] Preferably, the center line of the second sprocket and the center line of the connecting shaft are in the same horizontal plane. The limit telescopic rod is fixedly connected with the top plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The single-sheet paper feeding platform with a quick positioning mechanism not only realizes convenient positioning of paper, realizes automatic lifting of paper, but also realizes automatic adjustment of the height of the paper feeding wheel;

[0016] (1) By providing a positioning baffle, a bidirectional lead screw, a threaded sleeve, a fixed rod, a limit sleeve, a runner and a fixed cylinder, before paper feeding, the stacked papers are placed at the middle position of the top end of the lifting platform. Then, the runner is rotated to drive the bidirectional lead screw to rotate. The bidirectional lead screw drives two groups of positioning baffles to move towards the middle through the external threaded sleeve, so that the positioning baffles are attached to both sides of the paper, which can effectively position the paper. And the fixed rod inside the frame is attached to the inside of the limit sleeve, which can effectively limit the positioning baffle to prevent the positioning baffle from shaking. And the fixed cylinder on one side of the frame is attached to the outside of the runner, which can enhance the friction force and prevent the runner from rotating self, realizing convenient positioning of paper;

[0017] (2) By providing a lifting platform, a fixed sleeve, a spring, a connecting column and a side groove, when feeding paper, stack the paper neatly together and place it on the top of the lifting platform. After the top paper is successively sent out during the paper feeding process, the spring inside the fixed sleeve can push the lifting platform to rise continuously through the connecting column, so as to push the paper to rise continuously through the lifting platform, making the paper at the top fit against the bottom of the rubber wheel. And the fixed sleeve fits outside the connecting column to limit the lifting platform, preventing the lifting platform from shaking and affecting the paper feeding effect, realizing the automatic pushing of the paper to rise for continuous feeding;

[0018] (3) By providing a rubber wheel, a T-shaped mounting box, a cylinder, a limit telescopic rod, a connecting plate, a reduction motor, a first sprocket, a second sprocket, a transmission chain and a connecting shaft, when feeding paper, first start the cylinder to push the T-shaped mounting box to descend. The T-shaped mounting box drives the rubber wheel to descend through the connecting shaft, making the rubber wheel fit against the top of the paper. The limit telescopic rod at the bottom of the top plate can limit the T-shaped mounting box and the rubber wheel through the connecting plate to ensure the stability during paper feeding. Then start the reduction motor to drive the first sprocket to rotate. The first sprocket drives the connecting shaft and the rubber wheels on both sides to rotate through the transmission chain and the second sprocket. The rubber wheel can continuously feed the paper, realizing the automatic adjustment of the height of the rubber wheel to make it fit against the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front sectional structural view of the present utility model;

[0020] Figure 2 is an enlarged front sectional structural view of the T-shaped mounting box of the present utility model;

[0021] Figure 3 is a bottom view structural view of the lifting platform of the present utility model;

[0022] Figure 4 is of the present utility model Figure 1 enlarged structural view at A in;

[0023] In the figure: 1, frame; 2, lifting platform; 3, top plate; 4, rubber wheel; 5, T-shaped mounting box; 6, cylinder; 7, limit telescopic rod; 8, connecting plate; 9, positioning baffle; 10, bidirectional lead screw; 11, threaded sleeve; 12, fixed sleeve; 13, conveying platform; 14, fixed rod; 15, spring; 16, connecting column; 17, limit sleeve; 18, reduction motor; 19, first sprocket; 20, second sprocket; 21, transmission chain; 22, connecting shaft; 23, side groove; 24, runner; 25, fixed cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4 , a single-sheet paper feeding platform with a quick positioning mechanism, including a frame 1. The bottom of one end of the frame 1 is fixedly connected with a conveying platform 13. The center line of the frame 1 and the center line of the conveying platform 13 are in the same vertical plane. The top end inside the frame 1 is fixedly connected with a top plate 3. A positioning mechanism for positioning the paper is arranged inside the frame 1;

[0026] The positioning mechanism includes a bidirectional lead screw 10. The bottom end inside the frame 1 is movably connected with a bidirectional lead screw 10. A set of positioning baffles 9 are respectively arranged on both sides inside the frame 1. The bottom end of one side of the positioning baffle 9 is fixedly connected with a threaded sleeve 11. The bottom end of one side of the positioning baffle 9 is fixedly connected with a limiting sleeve 17. The bottom end inside the frame 1 is fixedly connected with a fixed rod 14. The bottom end of one side of the frame 1 is fixedly connected with a fixed cylinder 25. The bidirectional lead screw 10 penetrates through one side of the frame 1 and extends into the inside of the fixed cylinder 25 and is fixedly connected with a runner 24;

[0027] The runner 24 is movably connected with the fixed cylinder 25, and the threaded sleeve 11 is threadedly connected with the bidirectional lead screw 10;

[0028] The limiting sleeve 17 is slidably connected with the fixed rod 14. The center line of the runner 24 and the center line of the bidirectional lead screw 10 are in the same vertical plane;

[0029] Specifically, as shown in Figure 1 , Figure 3 and Figure 4 , before paper feeding, stack the papers at the middle position on the top of the lifting table 2. Then rotate the runner 24 to drive the bidirectional lead screw 10 to rotate. The bidirectional lead screw 10 drives the two groups of positioning baffles 9 to move towards the middle through the external threaded sleeve 11, so that the positioning baffles 9 fit on both sides of the paper to effectively position the paper. And the fixed rod 14 inside the frame 1 fits inside the limiting sleeve 17 to effectively limit the positioning baffle 9 to prevent the positioning baffle 9 from shaking. And the fixed cylinder 25 on one side of the frame 1 fits on the outside of the runner 24 to enhance the friction force and prevent the runner 24 from rotating self, realizing convenient positioning of the paper.

[0030] Embodiment 2: At both ends on both sides of the inner bottom end of the frame 1, there are fixedly connected fixed sleeves 12. At the bottom end inside the fixed sleeve 12, there is a fixedly connected spring 15. At the top end of the spring 15, there is a fixedly connected connecting column 16. At the top end of the connecting column 16, there is a fixedly connected lifting table 2. On both sides of the lifting table 2, there are side grooves 23 opened;

[0031] The connecting column 16 is movably connected with the fixed sleeve 12. The center line of the lifting table 2 and the center line of the conveying platform 13 are in the same vertical plane;

[0032] Specifically, as Figure 1 shown, during paper feeding, the papers are neatly stacked together and placed on the top end of the lifting table 2. After that, during the paper feeding process, as the top papers are successively sent out, the spring 15 inside the fixed sleeve 12 can push the lifting table 2 to continuously rise through the connecting column 16, so as to push the papers to continuously rise through the lifting table 2, making the papers at the top fit against the bottom of the rubber wheel 4. And the fixed sleeve 12 fits outside the connecting column 16 to limit the lifting table 2, preventing the lifting table 2 from shaking and affecting the paper feeding effect, realizing that the papers can be automatically pushed up for continuous conveying.

[0033] Embodiment 3: At the top end of the top plate 3, there is a fixedly connected air cylinder 6. The output end of the air cylinder 6 penetrates through the top plate 3 and is fixedly connected with a T-shaped mounting box 5. On both sides of the T-shaped mounting box 5, there are fixedly connected connecting plates 8. At the top end of the connecting plate 8, there is a fixedly connected limit telescopic rod 7. On one side inside the T-shaped mounting box 5, there is a fixedly connected reduction motor 18. The output end of the reduction motor 18 is fixedly connected with a first sprocket 19. At the bottom end inside the T-shaped mounting box 5, there is a second sprocket 20. Inside the second sprocket 20, there is a fixedly connected connecting shaft 22. The connecting shaft 22 penetrates through both sides of the T-shaped mounting box 5 and is respectively fixedly connected with a group of rubber wheels 4. The outside of the first sprocket 19 is movably connected with a transmission chain 21;

[0034] The transmission chain 21 is movably connected with the second sprocket 20. The center line of the connecting shaft 22 and the center line of the rubber wheel 4 are in the same horizontal plane;

[0035] The center line of the second sprocket 20 and the center line of the connecting shaft 22 are in the same horizontal plane. The limit telescopic rod 7 is fixedly connected with the top plate 3;

[0036] Specifically, as Figure 1 and Figure 2As shown in the figure, when feeding paper, first start the air cylinder 6 to push the T-shaped mounting box 5 to descend. The T-shaped mounting box 5 drives the rubber wheel 4 to descend through the connecting shaft 22, so that the rubber wheel 4 fits on the top of the paper. The limit telescopic rod 7 at the bottom of the top plate 3 can limit the T-shaped mounting box 5 and the rubber wheel 4 through the connecting plate 8 to ensure the stability during paper feeding. Then start the reduction motor 18 to drive the first sprocket 19 to rotate. The first sprocket 19 drives the connecting shaft 22 and the rubber wheels 4 on both sides to rotate through the transmission chain 21 and the second sprocket 20. The rubber wheels 4 can continuously feed the paper, realizing the automatic adjustment of the height of the rubber wheel 4 to fit the paper.

[0037] Working principle: When the utility model is in use, before feeding paper, stack the papers at the middle position of the top end of the lifting table 2. Then rotate the rotating wheel 24 to drive the bidirectional lead screw 10 to rotate. The bidirectional lead screw 10 drives the two groups of positioning baffles 9 to move towards the middle through the external threaded sleeves 11, so that the positioning baffles 9 fit on both sides of the paper to effectively position the paper. And the fixed rod 14 inside the frame 1 fits inside the limit sleeve 17 to effectively limit the positioning baffle 9 to prevent the positioning baffle 9 from shaking. And the fixed cylinder 25 on one side of the frame 1 fits on the outside of the rotating wheel 24 to enhance the friction force and prevent the rotating wheel 24 from rotating by itself. Then start the air cylinder 6 to push the T-shaped mounting box 5 to descend. The T-shaped mounting box 5 drives the rubber wheel 4 to descend through the connecting shaft 22, so that the rubber wheel 4 fits on the top of the paper. The limit telescopic rod 7 at the bottom of the top plate 3 can limit the T-shaped mounting box 5 and the rubber wheel 4 through the connecting plate 8 to ensure the stability during paper feeding. Then start the reduction motor 18 to drive the first sprocket 19 to rotate. The first sprocket 19 drives the connecting shaft 22 and the rubber wheels 4 on both sides to rotate through the transmission chain 21 and the second sprocket 20. The rubber wheels 4 can continuously feed the paper. After that, during the paper feeding process, after the top papers are successively sent out, the spring 15 inside the fixed sleeve 12 can push the lifting table 2 to continuously rise through the connecting column 16, so as to push the papers to continuously rise through the lifting table 2, so that the top papers fit on the bottom of the rubber wheels 4. And the fixed sleeve 12 fits on the outside of the connecting column 16 to limit the lifting table 2 to prevent the lifting table 2 from shaking and affecting the paper feeding effect.

Claims

1. A single-sheet paper feeding platform with a quick positioning mechanism, comprising a frame (1), characterized in that: At the bottom of one end of the frame (1), a conveying platform (13) is fixedly connected. The center line of the frame (1) and the center line of the conveying platform (13) are in the same vertical plane. At the top end inside the frame (1), a top plate (3) is fixedly connected. Inside the frame (1), a positioning mechanism for positioning the paper is provided. The positioning mechanism includes a bidirectional lead screw (10). At the bottom end inside the frame (1), the bidirectional lead screw (10) is movably connected. On both sides inside the frame (1), a group of positioning baffles (9) are respectively arranged. At the bottom end of one side of the positioning baffle (9), a threaded sleeve (11) is fixedly connected. At the bottom end of one side of the positioning baffle (9), a limiting sleeve (17) is fixedly connected. At the bottom end inside the frame (1), a fixed rod (14) is fixedly connected. At the bottom end of one side of the frame (1), a fixed cylinder (25) is fixedly connected. The bidirectional lead screw (10) passes through one side of the frame (1) and extends into the inside of the fixed cylinder (25) and is fixedly connected with a runner (24).

2. The single-sheet paper feeding platform with a quick positioning mechanism according to claim 1, wherein: The runner (24) is movably connected with the fixed cylinder (25), and the threaded sleeve (11) is threadedly connected with the bidirectional lead screw (10).

3. A single-sheet paper feeding platform with a quick positioning mechanism according to claim 1, characterized in that: The limiting sleeve (17) is slidably connected with the fixed rod (14), and the center line of the runner (24) and the center line of the bidirectional lead screw (10) are in the same vertical plane.

4. A single-sheet paper feeding platform with a quick positioning mechanism according to claim 1, characterized in that: At both ends of both sides at the bottom end inside the frame (1), fixed sleeves (12) are fixedly connected. At the bottom end inside the fixed sleeve (12), a spring (15) is fixedly connected. At the top end of the spring (15), a connecting column (16) is fixedly connected. At the top end of the connecting column (16), a lifting platform (2) is fixedly connected. On both sides of the lifting platform (2), side grooves (23) are formed.

5. The single-sheet paper feeding platform with a quick positioning mechanism according to claim 4, characterized in that: The connecting column (16) is movably connected with the fixed sleeve (12), and the center line of the lifting platform (2) and the center line of the conveying platform (13) are in the same vertical plane.

6. The single-sheet paper feeding platform with a quick positioning mechanism according to claim 1, characterized in that: At the top end of the top plate (3), a cylinder (6) is fixedly connected. The output end of the cylinder (6) passes through the top plate (3) and is fixedly connected with a T-shaped installation box (5). On both sides of the T-shaped installation box (5), connecting plates (8) are fixedly connected. At the top end of the connecting plate (8), a limiting telescopic rod (7) is fixedly connected. On one side inside the T-shaped installation box (5), a reduction motor (18) is fixedly connected. The output end of the reduction motor (18) is fixedly connected with a first sprocket (19). At the bottom end inside the T-shaped installation box (5), a second sprocket (20) is arranged. Inside the second sprocket (20), a connecting shaft (22) is fixedly connected. The connecting shaft (22) passes through both sides of the T-shaped installation box (5) and is respectively fixedly connected with a group of rubber wheels (4). The outside of the first sprocket (19) is movably connected with a transmission chain (21).

7. A single-sheet paper feeding platform with a quick positioning mechanism according to claim 6, characterized in that: The transmission chain (21) is movably connected with the second sprocket (20), and the center line of the connecting shaft (22) and the center line of the rubber wheel (4) are in the same horizontal plane.

8. A single-sheet paper feeding platform with a quick positioning mechanism according to claim 6, characterized in that: The center line of the second sprocket wheel (20) is on the same horizontal plane as the center line of the connecting shaft (22), and the limit telescopic rod (7) is fixedly connected to the top plate (3).

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