Laser paper feeding device for laser printing

Abstract

The utility model discloses a laser paper feeding device for laser printing. The laser paper feeding device comprises a feeding frame, a paper feeder, a guide roller and a paper roll positioning structure. According to the paper roll rod replacing device, the pressing ring is opened in a rotating mode, the connecting piece is made to rotate, the paper roll rod is placed in the containing groove, then the pressing ring is loosened, under the action of the torsion spring, the pressing ring can press the surface of the paper roll rod in the containing groove, the paper roll rod can be replaced conveniently, the whole replacing process is more convenient, the replacing efficiency of the paper roll rod is high, and the replacing efficiency of the paper roll rod is improved. And after the pressing ring is pressed on the surface of the paper roll rod, the rotating piece is rotated to enable the pressing rod to move downwards and be pressed in the pressing opening, so that the connecting frame is tightly pressed on the paper roll rod, the paper roll rod is fixed more stably, and reinforcement is not tedious.

Description

Technical Field

[0001] This utility model relates to the field of laser paper printing technology, specifically to a laser paper feeding device for laser printing. Background Technology

[0002] Laser printing is a printing technique that uses laser ink (a metallic optical color-changing anti-counterfeiting ink) and advanced laser printing technology to screen or roll-print laser ink onto various flat, smooth, and transparent materials. The printed matter can display different colors as the viewing angle changes, with a significant dynamic color-changing effect. Under focused light, it can produce a rainbow ring effect. The laser printing machine is equipped with a laser paper feeding device, which is responsible for feeding the laser paper into the laser printing machine.

[0003] Existing patent: CN209427800U, discloses a laser paper feeding device for laser printing, including a printing machine body, a traveling wheel fixedly installed at the bottom of the printing machine body, a base plate fixedly installed at the bottom of the printing machine body, and a sliding groove extending to the outside of the base plate.

[0004] The aforementioned patents or existing laser paper feeding devices have the following problems:

[0005] The existing laser feeding device is cumbersome to load and inconvenient to replace the paper roll rod, resulting in poor feeding efficiency when replacing the paper roll rod. Utility Model Content

[0006] The purpose of this invention is to provide a laser paper feeding device for laser printing, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a laser paper feeding device for laser printing, comprising a feeding frame, a paper feeder and a guide roller, a paper roll positioning structure at the paper feeding end of the feeding frame, the paper roll positioning structure comprising a bracket, a bracket at the end of the feeding frame, a placement groove on the bracket, a fixing frame fixed on the bracket, a pressure ring on the fixing frame, a connecting member at the end of the pressure ring, the connecting member being rotatably connected to the fixing frame via a torsion spring, and a limit structure at the end of the bracket.

[0008] Preferably, the bottom of the bracket is provided with a support rod, one end of which is fixed to the bracket and the other end is fixed to the surface of the feed frame.

[0009] Preferably, the support rod is inclined and supported between the bracket and the feed frame.

[0010] Preferably, the inner surfaces of the placement groove and the inner surface of the pressure ring are smooth, and a paper roll rod is placed in the placement groove, which can slide along the inner surfaces of the placement groove and the pressure ring.

[0011] Preferably, the pressure ring presses against the surface of the paper roll rod in the placement slot under the action of the torsion spring.

[0012] Preferably, the limiting structure includes a fixed frame, the end of the bracket is provided with a fixed frame, the end of the pressure ring is provided with a connecting frame, the connecting frame is provided with a pressure port, a rotating component is connected to the fixed frame, a rotating head is provided on the rotating component, a pressure rod is connected to the rotating head, and a connecting screw is provided at the end of the rotating head, the connecting screw being connected to the rotating component.

[0013] Preferably, the rotating component is provided with a positioning rod, and a baffle is provided at the end of the positioning rod. The positioning rod and the baffle are located inside the connecting screw.

[0014] Preferably, the baffle is provided with an elastic element, and a pressure plate is fixed to the end of the elastic element.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Rotate the pressure ring to open it, allowing the connector to rotate. Place the paper roll rod into the placement slot, then release the pressure ring. Under the action of the torsion spring, the pressure ring will press against the surface of the paper roll rod in the placement slot, facilitating easy replacement of the paper roll rod. This makes the entire replacement process more convenient and achieves high efficiency in replacing the paper roll rod. After the pressure ring presses against the surface of the paper roll rod, rotate the rotating part to move the pressure rod downward and press it into the pressure port, so that the connecting frame is tightly pressed against the paper roll rod, providing a more stable fixation of the paper roll rod, and the reinforcement is not cumbersome. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a front view schematic diagram of the paper roll positioning structure of this utility model;

[0020] Figure 4 This is a front view cross-sectional structural diagram of the pressure ring of this utility model;

[0021] Figure 5 This is a schematic diagram of the left-side cross-sectional structure of the limiting structure of this utility model.

[0022] In the diagram: Feed frame-1, Paper feeder-2, Guide roller-3, Paper roll positioning structure-4, Bracket-41, Placement slot-42, Fixing frame-43, Pressure ring-44, Connector-45, Limiting structure-46, Support rod-47, Fixing frame-461, Connecting frame-462, Pressure port-463, Rotating component-464, Rotating head-465, Pressure rod-466, Connecting screw-467, Positioning rod-468, Baffle-469, Elastic component-4610, Pressure plate-4611, Paper roll rod-5. Detailed Implementation

[0023] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0024] Please see Figure 1 and Figure 2 This utility model provides a laser paper feeding device for laser printing, including a feeding frame 1, a paper feeder 2 in the feeding frame 1, a guide roller 3 in the feeding frame 1, and a paper roll positioning structure 4 at the paper feeding end of the feeding frame 1.

[0025] The laser paper roll rod 5 is fixed on the paper roll positioning structure 4. The laser paper is wound around the guide roller 3 and fed into the paper feeder 2. The paper feeder 2 feeds the laser paper into the laser printing machine to realize the feeding of the laser paper.

[0026] Please see Figure 2 , Figure 3 and Figure 4 This utility model provides a laser paper feeding device for laser printing. The paper roll positioning structure 4 includes a bracket 41. The end of the feeding frame 1 is fixed with the bracket 41 by bolts. The bracket 41 is provided with a placement groove 42. The paper roll rod 5 can be placed in the placement groove 42 to realize the placement of the paper roll rod 5.

[0027] A fixing frame 43 is bolted to the bracket 41. A pressure ring 44 is provided on the fixing frame 43. A connector 45 is provided at the end of the pressure ring 44. The connector 45 is rotatably connected to the fixing frame 43 through a torsion spring. The inner surfaces of the placement groove 42 and the inner surfaces of the pressure ring 44 are smooth. A paper roll 5 is placed in the placement groove 42. The paper roll 5 can slide along the inner surfaces of the placement groove 42 and the pressure ring 44. Under the action of the torsion spring, the pressure ring 44 presses against the surface of the paper roll 5 in the placement groove 42 to achieve the control of the paper roll. The rod 5 is positioned and slides along the inner side of the placement groove 42 when the paper roll rod 5 rotates, and has high rotational stability. The end of the bracket 41 is provided with a limit structure 46, and the bottom of the bracket 41 is provided with a support rod 47. One end of the support rod 47 is fixed on the bracket 41, and the other end is fixed on the surface of the feed frame 1. The support rod 47 is supported between the bracket 41 and the feed frame 1 at a 45° angle to provide better support for the bracket 41 and make the paper roll rod 5 fixed with high stability.

[0028] Specifically, by rotating the opening pressure ring 44, the connecting piece 45 rotates. At this time, the torsion spring deforms under force and generates elastic force, placing the paper roll rod 5 into the placement slot 42. Then, the pressure ring 44 is released. Under the action of the torsion spring, the pressure ring 44 will press against the surface of the paper roll rod 5 in the placement slot 42, so as to facilitate the replacement of the paper roll rod 5. This makes the entire replacement process more convenient and achieves high efficiency in replacing the paper roll rod 5.

[0029] Please see Figure 3 and Figure 5 This utility model provides a laser paper feeding device for laser printing. The limiting structure 46 includes a fixing frame 461. The end of the bracket 41 is integrally formed with the fixing frame 461, and the end of the pressure ring 44 is integrally formed with a connecting frame 462. The connecting frame 462 is provided with a pressure port 463.

[0030] A rotating component 464 is rotatably connected in the fixed frame 461. A rotating head 465 is provided on the rotating component 464. A pressure rod 466 is rotatably connected to the rotating head 465. A connecting screw 467 is integrally formed at the end of the rotating head 465. The connecting screw 467 is threadedly connected to the rotating component 464.

[0031] The rotating component 464 has an integrally formed positioning rod 468. The end of the positioning rod 468 is provided with a baffle 469. The positioning rod 468 and the baffle 469 are located inside the connecting screw 467. The connecting screw 467 can rotate along the surface of the positioning rod 468 and the baffle 469, and can also slide up and down along the positioning rod 468 and the baffle 469 to avoid sliding in a vertical state. This is used to position the connecting screw 467 and prevent the connecting screw 467 from separating from the rotating component 464.

[0032] An elastic element 4610 is provided on the baffle 469, and a pressure plate 4611 is fixed to the end of the elastic element 4610. After the positioning rod 468 is pressed into the pressure port 463, the connecting screw 467 will push the baffle 469, causing the elastic element 4610 to be compressed and generate elastic force. Then, under the action of the connecting screw 467, the threads of the connecting screw 467 and the rotating part 464 are closely engaged, resulting in a more stable connection effect and making it less prone to loosening.

[0033] Specifically, after the pressure ring 44 presses against the surface of the paper roll rod 5, the rotating part 464 is rotated so that the rotating head 465 rotates into the connecting frame 462. Then, the rotating head 465 is rotated to drive the connecting screw 467 to rotate. Since the connecting screw 467 is threadedly connected to the rotating part 464, it will move downward when the connecting screw 467 rotates, and then drive the pressure rod 466 to move downward and press into the pressure port 463, so that the connecting frame 462 is pressed tightly onto the paper roll rod 5, which has a more stable fixation of the paper roll rod 5, and the reinforcement is not complicated.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laser paper feeding device for laser printing, comprising a feeding frame (1), a paper feeder (2) is arranged in the feeding frame (1), a guide roller (3) is arranged in the feeding frame (1), characterized in that: Also include paper roll positioning structure (4), the feeding frame (1) paper end is provided with paper roll positioning structure (4), the paper roll positioning structure (4) includes bracket (41), the feeding frame (1) end is provided with bracket (41), and the bracket (41) is provided with placing groove (42), the bracket (41) is fixed with fixed frame (43), and the fixed frame (43) is provided with compression ring (44), and the compression ring (44) end is provided with connecting piece (45), and the connecting piece (45) is rotatably connected with the fixed frame (43) by torsion spring, and the end of the bracket (41) is provided with limiting structure (46).

2. The laser paper feeding device for laser printing according to claim 1, wherein: The bottom of the bracket (41) is provided with a support rod (47), one end of the support rod (47) is fixed on the bracket (41), and the other end is fixed on the surface of the feeding frame (1).

3. The laser paper feeding device for laser printing according to claim 2, wherein: The support rod (47) is supported between the bracket (41) and the feeding frame (1) in an inclined state.

4. The laser paper feeding device for laser printing according to claim 1, wherein: The surface of the inside of the placing groove (42) and the inside of the compression ring (44) is smooth, the paper roll rod (5) is placed in the placing groove (42), and the paper roll rod (5) can slide along the surface of the inside of the placing groove (42) and the inside of the compression ring (44).

5. The laser paper feeding device for laser printing according to claim 4, wherein: The compression ring (44) is pressed on the surface of the paper roll rod (5) in the placing groove (42) under the action of the torsion spring.

6. The laser paper feeding device for laser printing according to claim 1, wherein: The limiting structure (46) includes a fixed frame (461), the end of the bracket (41) is provided with a fixed frame (461), the end of the compression ring (44) is provided with a connecting frame (462), the connecting frame (462) is provided with a compression port (463), the fixed frame (461) is connected with a rotating part (464), the rotating part (464) is provided with a rotating head (465), the rotating head (465) is connected with a compression rod (466), the end of the rotating head (465) is provided with a connecting screw rod (467), and the connecting screw rod (467) is connected with the rotating part (464).

7. The laser paper feeding device for laser printing according to claim 6, wherein: The rotating part (464) is provided with a positioning rod (468), and the end of the positioning rod (468) is provided with a baffle (469), the positioning rod (468) and the baffle (469) are located in the connecting screw rod (467).

8. The laser paper feeding device for laser printing according to claim 7, wherein: The baffle (469) is provided with an elastic element (4610), and the end of the elastic element (4610) is fixed with a pressing plate (4611).

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