A printing apparatus

Abstract

The application relates to a printing device in the technical field of printing devices, which comprises a base, the top of the base is provided with a supporting assembly for supporting plastic, two side plates are fixed on the top of the base and located on the right side of the supporting assembly, the two side plates are provided with a reversing mechanism for reversing the plastic, a lifting mechanism capable of adjusting the height is arranged between the two side plates and below the reversing mechanism, a corona device is fixed at the bottom of the lifting mechanism, a rotating assembly capable of providing stable power for the movement of the plastic is arranged between the two side plates and directly below the corona device, and a limiting assembly capable of guiding the plastic is arranged between the two side plates. The printing device can change the corona surface of the printing paper through the reversing mechanism, so that the back of the printing paper is subjected to corona treatment; when the reversing mechanism is not used, the front of the printing paper can be directly subjected to corona treatment, and the printing paper does not need to be turned over as a whole, so that the actual use is more convenient.

Description

Technical Field

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

[0002] Existing methods involve adding a corona treatment structure to the printing equipment to corona treat the outer wall of the plastic before bonding. This increases the roughness of the outer wall of the plastic, resulting in more stable bonding between the layers after applying the adhesive.

[0003] For example, Chinese Patent (Announcement No.: CN217099375U) discloses an assembly corona device for a printing press. A corona electrode is fixedly mounted on the top of the housing, and a corona roller is positioned corresponding to the corona electrode, with the corona roller located inside the housing. Two transverse first elongated slots are provided on each of the two sides of the housing, symmetrically arranged in pairs. Guide rollers are fitted through these first elongated slots and fixed by fasteners. There are two guide rollers, each located inside the housing. Several longitudinal second elongated slots are provided on the sides of the housing, with mounting components fitted within each slot. One end of each mounting component has a fixing seat, which is fixedly connected to the side of the housing. This device has a simple structure, is compatible with most printing setups, simplifies and quickly reduces modification costs for printing equipment, improves work efficiency, and lowers printing costs, demonstrating good practicality.

[0004] However, this device is difficult to corona treat the flipped side of the printing paper. It can only corona treat the front side of the printing paper. If it is necessary to corona treat the back side, the entire printing paper needs to be flipped over, which is extremely inconvenient. Therefore, a printing device is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a printing device that facilitates corona treatment of both sides of printing paper, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a printing device, including a base, a support assembly for supporting plastic on the top of the base, two side plates fixed on the top of the base located to the right of the support assembly, a reversing mechanism for changing the direction of the plastic on the two side plates, a lifting mechanism for height adjustment between the two side plates and below the reversing mechanism, a corona device fixed at the bottom of the lifting mechanism, a rotating assembly for providing stable power for the movement of the plastic between the two side plates and directly below the corona device, and a limiting assembly for guiding the plastic between the two side plates; The reversing mechanism includes a drive motor, a driving rod, a driven rod, a transmission part, and two reverse guide rollers. The drive motor is fixed to the rear side wall of the rear side plate. The output shaft of the drive motor is fixed to the driving rod that passes through the rear side plate. The driven rod passes through the rear side plate and is rotatably connected to the two side plates through bearings. The outer surface of the driving rod and located behind the side plate is provided with a transmission part. The outer surfaces of the driving rod and the driven rod are respectively fixed to the two reverse guide rollers.

[0007] By adopting this technical solution, the reversing mechanism can change the corona surface of the printing paper, thereby achieving the effect of corona treatment on the front or back of the printing paper.

[0008] Furthermore, the support assembly includes a support rod, a rotating rod, and a support roller. The support rod is fixed to the top of the base, the inner side of the support rod is rotatably connected to the rotating rod via a bearing, and the outer surface of the rotating rod is fixed to the support roller.

[0009] By adopting this technical solution, the support component is mainly used to support the printing paper.

[0010] Furthermore, the transmission unit includes a driving sprocket, a driven sprocket, and a chain. The driving sprocket and the driven sprocket are fixed to the outer surfaces of the driving rod and the driven rod, respectively, and the driving sprocket and the driven sprocket transmit power through the chain.

[0011] By adopting this technical solution, the transmission unit can ensure that the driving rod and the driven rod rotate synchronously, further promoting the synchronous and co-rotating of the two reverse guide rollers.

[0012] Furthermore, the lifting mechanism includes a support plate, a servo motor, a threaded rod, a threaded frame, and two limiting parts. The support plate is fixed to two side plates, the bottom of the support plate is fixed to the servo motor, the output shaft of the servo motor is fixed to the threaded rod, the outer surface of the threaded rod is threadedly connected to the threaded frame, the bottom of the threaded frame is fixed to a corona discharge device, and the two limiting parts are fixed to the bottom of the support plate.

[0013] By adopting this technical solution, the lifting mechanism can adjust the height of the corona device, making it easier for printing paper to pass through the corona device.

[0014] Furthermore, each of the limiting parts includes a stabilizing rod, a supporting spring, and a moving rod. The inner bottom wall of the stabilizing rod is fixed to the supporting spring, the other side of the supporting spring is fixed to the moving rod extending out of the stabilizing rod, the side of the moving rod away from the supporting spring is fixed to the supporting plate, and the bottom of the stabilizing rod is fixed to the corona discharge device.

[0015] By adopting this technical solution, the limiting part can limit the corona device, thereby achieving the effect of indirectly limiting the threaded frame.

[0016] Furthermore, the rotating assembly includes a rotating shaft and a starting roller. The rotating shaft is rotatably connected to the two side plates via bearings. The outer surface of the rotating shaft is fixed to the starting roller. The rotating shaft passes through the rear side plate.

[0017] By adopting this technical solution, the starting roller and the corona device work together to ensure stable corona treatment of the printing paper.

[0018] Furthermore, a stepper motor is fixed to the back of the rear side plate, and the output shaft of the stepper motor is fixed to the rotation shaft.

[0019] By adopting this technical solution, the stepper motor can provide stable power for the rotation of the rotating shaft.

[0020] Furthermore, the limiting component includes a limiting block and a pad, both of which are fixed to the two side plates.

[0021] By adopting this technical solution, a ring mechanism can be used to help print paper more stably through the cooperation of limiting blocks and pads.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This printing equipment can change the corona surface of the printing paper through a reversing mechanism, thereby corona-electrode the back side of the printing paper. When the reversing mechanism is not used, corona-electrode can be directly applied to the front side of the printing paper without the need to flip the entire printing paper, making it more convenient in actual use.

[0023] 2. This printing equipment can finely adjust the height of the corona device through a lifting mechanism, which facilitates the passing of printing paper between the corona device and the rotating components, thereby indirectly improving the overall corona efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the reversing mechanism of this utility model; Figure 3 This is a schematic diagram of the lifting mechanism of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the limiting part of this utility model.

[0025] In the diagram: 1. Base; 2. Support assembly; 201. Support rod; 202. Rotating rod; 203. Support roller; 3. Side plate; 4. Reversing mechanism; 401. Drive motor; 402. Driving rod; 403. Driven rod; 404. Transmission part; 4041. Driving sprocket; 4042. Driven sprocket; 4043. Chain; 405. Reverse guide roller; 5. Lifting mechanism; 501. Support plate; 502. Servo motor; 503. Threaded rod; 504. Threaded frame; 505. Limiting part; 5051. Stabilizing rod; 5052. Support spring; 5053. Moving rod; 6. Rotating assembly; 601. Rotating shaft; 602. Starting roller; 7. Corona discharge device; 8. Limiting assembly; 801. Limiting block; 802. Pad block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1 to 2 In this embodiment, a printing device includes a base 1. The top of the base 1 is provided with a support assembly 2 for supporting plastic. Two side plates 3 are fixed on the top of the base 1, located on the right side of the support assembly 2. The two side plates 3 are provided with a reversing mechanism 4 for changing the direction of the plastic. Between the two side plates 3 and below the reversing mechanism 4, a lifting mechanism 5 capable of height adjustment is provided. A corona device 7 is fixed at the bottom of the lifting mechanism 5. Between the two side plates 3 and directly below the corona device 7, a rotating assembly 6 is provided to provide stable power for the movement of the plastic. Between the two side plates 3, a limiting assembly 8 that can guide the plastic is provided.

[0028] In addition, the support assembly 2 includes a support rod 201, a rotating rod 202, and a support roller 203. The support rod 201 is fixed to the top of the base 1. The inner side of the support rod 201 is rotatably connected to the rotating rod 202 through a bearing. The bearing can improve the stability of the rotating rod 202 and ensure that the rotation of the rotating rod 202 will not affect the support rod 201. The outer surface of the rotating rod 202 is fixed to the support roller 203, and the support roller 203 can effectively support the printing paper.

[0029] In addition, the reversing mechanism 4 includes a drive motor 401, a driving rod 402, a driven rod 403, a transmission part 404, and two reverse guide rollers 405. The drive motor 401 is fixed to the rear side wall of the rear side plate 3. The output shaft of the drive motor 401 is fixed to the driving rod 402 that passes through the rear side plate 3. The drive motor 401 can provide stable power for the rotation of the driving rod 402. The driven rod 403 passes through the rear side plate 3 and is rotatably connected to the two side plates 3 through bearings. The transmission part 404 is provided on the outer surface of the driving rod 402 and located behind the side plate 3. The transmission part 404 can ensure that the driving rod 402 and the driven rod 403 rotate synchronously and in the same direction, thereby ensuring that the two reverse guide rollers 405 rotate synchronously. The outer surfaces of the driving rod 402 and the driven rod 403 are respectively fixed to the two reverse guide rollers 405.

[0030] It should be further explained that the transmission unit 404 includes a drive sprocket 4041, a driven sprocket 4042, and a chain 4043. The chain 4043 ensures that the drive sprocket 4041 and the driven sprocket 4042 rotate synchronously, which is more stable than belt drive. The drive sprocket 4041 and the driven sprocket 4042 are fixed to the outer surfaces of the drive rod 402 and the driven rod 403, respectively. The drive sprocket 4041 and the driven sprocket 4042 transmit power through the chain 4043.

[0031] In this embodiment, when it is necessary to corona discharge the back of the printing paper, simply pass the printing paper between the reversing mechanism 4 and the limiting component 8, and then pass it through the right side of the corona discharge device 7 and the rotating component 6.

[0032] Please refer to it again. Figure 1 , Figure 3 and Figure 4 To facilitate the passage of printing paper, the lifting mechanism 5 in this embodiment includes a support plate 501, a servo motor 502, a threaded rod 503, a threaded frame 504, and two limiting parts 505. The support plate 501 is fixed to the two side plates 3, and the support plate 501 can provide reliable and stable support for the entire lifting mechanism 5. The bottom of the support plate 501 is fixed to the servo motor 502, and the output shaft of the servo motor 502 is fixed to the threaded rod 503. The servo motor 502 provides continuous and stable rotational force to the threaded rod 503. The outer surface of the threaded rod 503 is threadedly connected to the threaded frame 504. Since the limiting part 505 limits the corona device 7, it indirectly limits the threaded frame 504. Therefore, when the threaded rod 503 rotates, it can drive the threaded frame 504. The bottom of the threaded frame 504 is fixed to the corona device 7, and the two limiting parts 505 are fixed to the bottom of the support plate 501.

[0033] Furthermore, each limiting part 505 includes a stabilizing rod 5051, a supporting spring 5052, and a moving rod 5053. The inner bottom wall of the stabilizing rod 5051 is fixed to the supporting spring 5052, which provides auxiliary support. The limiting effect of the limiting part 505 is mainly achieved by the partial overlap of the stabilizing rod 5051 and the moving rod 5053. The other side of the supporting spring 5052 is fixed to the moving rod 5053, which extends beyond the stabilizing rod 5051. The side of the moving rod 5053 away from the supporting spring 5052 is fixed to the support plate 501. The limiting part 505 limits the corona device 7, thereby indirectly limiting the threaded frame 504. The bottom of the stabilizing rod 5051 is fixed to the corona device 7.

[0034] In addition, the rotating assembly 6 includes a rotating shaft 601 and a starting roller 602. The rotating shaft 601 is rotatably connected to the two side plates 3 through bearings. The outer surface of the rotating shaft 601 is fixed to the starting roller 602. The rotating shaft 601 passes through the rear side plate 3. A stepper motor is fixed on the back of the rear side plate 3. The output shaft of the stepper motor is fixed to the rotating shaft 601. The stepper motor can cause the rotating shaft 601 and the starting roller 602 on it to rotate stably.

[0035] In addition, the limiting component 8 includes a limiting block 801 and a pad 802. Both the limiting block 801 and the pad 802 are fixed to the two side plates 3. The limiting block 801 and the pad 802, together with the reversing mechanism 4, can provide a stable channel for the movement of the printing paper.

[0036] In this embodiment, the lifting mechanism 5 and the rotating component 6 work together to adjust the distance between the corona device 7 and the rotating component 6, thereby facilitating the passage of printing paper between the corona device 7 and the rotating component 6.

[0037] It is understandable that this application can facilitate corona treatment of the front and back sides of the printing paper by setting the reversing mechanism 4, which facilitates the bonding and fixing of the printing paper, and does not change the direction of the printing paper entering and leaving, nor does it require flipping the printing paper.

[0038] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0039] The working principle of the above embodiments is as follows: When corona treatment is required on the front side of the printing paper, the servo motor 502 is first started, causing the threaded rod 503 to rotate, which in turn moves the threaded frame 504. At the same time, the limiting part 505 limits the corona treatment device 7, indirectly limiting the threaded frame 504, ensuring that the corona treatment device 7 can move stably, facilitating the printing paper to pass through the corona treatment device 7 and the rotating component 6, and smoothly corona treating the front side of the printing paper. When corona treatment is required on the back side, the printing paper is first passed through the reversing mechanism 4 and the limiting component 8, and then inserted from the right side of the corona treatment device 7 and the limiting component 8, thereby corona treating the back side of the printing paper. Finally, it passes under the starting roller 602. This method does not change the original feeding direction of the printing paper, nor does it require the printing paper to be completely flipped, and can corona treat the front or back side of the printing paper.

Claims

1. A printing apparatus, comprising a base (1), characterized in that: The base (1) has a support assembly (2) on top for supporting the plastic. The base (1) has two side plates (3) fixed on top, located to the right of the support assembly (2). The two side plates (3) have a reversing mechanism (4) for changing the direction of the plastic. The two side plates (3) are located between the two side plates (3) and below the reversing mechanism (4) for height adjustment. The bottom of the lifting mechanism (5) is fixed with a corona device (7). The two side plates (3) are located between the two side plates (3) and directly below the corona device (7) for providing stable power for the movement of the plastic. The two side plates (3) are located between the two side plates (3) for guiding the plastic. The reversing mechanism (4) includes a drive motor (401), a driving rod (402), a driven rod (403), a transmission part (404), and two reverse guide rollers (405). The drive motor (401) is fixed to the rear side wall of the rear side plate (3). The output shaft of the drive motor (401) is fixed to the driving rod (402) that passes through the rear side plate (3). The driven rod (403) passes through the rear side plate (3) and is rotatably connected to the two side plates (3) through bearings. The transmission part (404) is provided on the outer surface of the driving rod (402) and located behind the side plate (3). The outer surfaces of the driving rod (402) and the driven rod (403) are respectively fixed to the two reverse guide rollers (405).

2. The printing equipment according to claim 1, characterized in that: The support assembly (2) includes a support rod (201), a rotating rod (202) and a support roller (203). The support rod (201) is fixed to the top of the base (1). The inner side of the support rod (201) is rotatably connected to the rotating rod (202) through a bearing. The outer surface of the rotating rod (202) is fixed to the support roller (203).

3. The printing equipment according to claim 1, characterized in that: The transmission unit (404) includes a drive sprocket (4041), a driven sprocket (4042), and a chain (4043). The drive sprocket (4041) and the driven sprocket (4042) are fixed to the outer surfaces of the drive rod (402) and the driven rod (403), respectively. The drive sprocket (4041) and the driven sprocket (4042) transmit power through the chain (4043).

4. The printing equipment according to claim 1, characterized in that: The lifting mechanism (5) includes a support plate (501), a servo motor (502), a threaded rod (503), a threaded frame (504), and two limiting parts (505). The support plate (501) is fixed to the two side plates (3). The bottom of the support plate (501) is fixed to the servo motor (502). The output shaft of the servo motor (502) is fixed to the threaded rod (503). The outer surface of the threaded rod (503) is threadedly connected to the threaded frame (504). The bottom of the threaded frame (504) is fixed to the corona device (7). The two limiting parts (505) are fixed to the bottom of the support plate (501).

5. A printing device according to claim 4, characterized in that: Each of the limiting parts (505) includes a stabilizing rod (5051), a supporting spring (5052), and a moving rod (5053). The inner bottom wall of the stabilizing rod (5051) is fixed to the supporting spring (5052). The other side of the supporting spring (5052) is fixed to the moving rod (5053) extending out of the stabilizing rod (5051). The side of the moving rod (5053) away from the supporting spring (5052) is fixed to the support plate (501). The bottom of the stabilizing rod (5051) is fixed to the corona device (7).

6. A printing apparatus according to claim 1, characterized in that: The rotating assembly (6) includes a rotating shaft (601) and a starting roller (602). The rotating shaft (601) is rotatably connected to the two side plates (3) through bearings. The outer surface of the rotating shaft (601) is fixed to the starting roller (602). The rotating shaft (601) passes through the rear side plate (3).

7. A printing apparatus according to claim 6, characterized in that: A stepper motor is fixed to the back of the rear side plate (3), and the output shaft of the stepper motor is fixed to the rotating shaft (601).

8. A printing apparatus according to claim 1, characterized in that: The limiting component (8) includes a limiting block (801) and a pad (802), both of which are fixed to the two side plates (3).

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