A plate engraving device

Abstract

This utility model discloses a printing roller engraving device, relating to the field of printing roller processing technology. It addresses the problem that in traditional printing roller engraving devices, the sudden increase in pressure at the engraving head causes the roller to shake, thus affecting the engraved pattern. The device includes a frame assembly, an engraving assembly, and a support assembly. The engraving assembly is located inside the frame assembly, and the support assembly is located on one side of the frame assembly. The engraving assembly includes a lifting cylinder located at the top of the frame assembly, a mounting bracket at the bottom output end of the lifting cylinder, a lead screw conveying mechanism located inside the mounting bracket, a lead screw sleeve located on the surface of the lead screw conveying mechanism, and an engraving mechanism located at the bottom of the lead screw sleeve. This utility model, through the design of the engraving assembly and the support assembly, effectively counteracts the shaking caused by the engraving pressure. The support plates are distributed on both sides of the engraving mechanism, forming symmetrical support, which can stably balance the pressure applied by the engraving head and reduce the deformation of the printing roller.

Description

Technical Field

[0001] This utility model relates to the field of printing roller processing technology, and more specifically, to a printing roller engraving device. Background Technology

[0002] Printing rollers, also known as steel rollers, are generally used for printing plates. Printing rollers are usually made from cylinders. After being processed by welding, turning and other processes, copper is plated on the surface of the printing roller to form an electroplated layer. Then, the corresponding pattern is engraved on the electroplated layer using a gravure electronic engraving machine, followed by subsequent processing such as chrome plating.

[0003] In the actual operation of existing printing roller engraving devices, when the device is in working condition, the engraving head needs to maintain a certain pressure and move relative to the printing roller surface to complete the pattern engraving operation. However, during the engraving process, due to factors such as uneven roller material, changes in the complexity of the engraved pattern, wear of the mechanical parts of the engraving head itself, or instantaneous force fluctuations in the transmission system, the pressure exerted by the engraving head on the printing roller often increases suddenly. This sudden change in pressure disrupts the original force balance of the printing roller. Even a small amplitude of this sway can directly cause a shift in the relative position between the engraving head and the printing roller surface in high-precision engraving scenarios. This results in problems such as uneven line thickness, blurred edges, pattern misalignment, and inconsistent depth in the engraved pattern, seriously affecting the engraving quality of the printing roller. Based on the above problems, we propose a printing roller engraving device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a printing roller engraving device to solve the problem that during the use of traditional printing roller engraving devices, the pressure of the printing roller at the engraving head increases suddenly, which causes the printing roller to shake and thus affects the engraved pattern.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a printing roller engraving device, comprising a frame assembly, an engraving assembly, and a lifting assembly, wherein the engraving assembly is disposed inside the frame assembly, and the lifting assembly is disposed on one side of the frame assembly; the engraving assembly includes a lifting cylinder disposed at the top of the frame assembly, a mounting frame disposed at the bottom output end of the lifting cylinder, a lead screw conveying mechanism disposed inside the mounting frame, a lead screw sleeve disposed on the surface of the lead screw conveying mechanism, and an engraving mechanism disposed at the bottom of the lead screw sleeve; the lifting assembly includes a fixed frame disposed on one side of the frame assembly, a guide rod disposed between the fixed frames, a guide sleeve disposed on the surface of the guide rod, a rocker plate disposed on the surface of the guide sleeve, a buffer mechanism disposed at one end of the rocker plate, a support plate disposed at the top of the buffer mechanism, a hinge frame disposed at the other end of the rocker plate, and a connecting rod disposed on one side of the engraving mechanism and connected to the hinge frame at one end; When the lifting cylinder moves the engraving mechanism downward, it simultaneously moves the connecting rod downward. During the downward movement of the connecting rod, it applies downward pressure to one end of the rocker plate. At this time, the other end of the rocker plate drives the support plate to rise, thus lifting the bottom of the printing roller.

[0006] Preferably, the frame assembly includes a frame, a top frame disposed on the top of the frame, a motor disposed on one side of the frame, a fixed three-jaw chuck disposed at the output end of the motor, a clamping cylinder disposed on the other side of the frame, and a movable three-jaw chuck disposed at the output end of the clamping cylinder.

[0007] Preferably, the connecting rod is bent, one end of the connecting rod is connected to the engraving mechanism via a hinge, and a limit baffle is provided on the hinge, and the other end of the connecting rod is rotatably connected to the hinge frame.

[0008] Preferably, the rocker is arranged in a V-shape, and the support plates are distributed on both sides of the engraving mechanism.

[0009] Preferably, the tray is arc-shaped, and the curvature of the tray is the same as the curvature of the printing roller surface. A silicone layer is provided on the top of the tray, and a soft brush layer is provided on the top surface of the silicone layer.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model designs an engraving component and a lifting component. When the engraving mechanism descends to perform engraving operations, the lifting cylinder drives the engraving mechanism to move downward, and simultaneously drives the connecting rod to move downward. During the downward movement of the connecting rod, pressure is applied downward to one end of the rocker plate. At this time, the other end of the rocker plate drives the support plate to rise, lifting the bottom of the printing roller and effectively counteracting the shaking caused by the engraving pressure. The support plates are distributed on both sides of the engraving mechanism to form symmetrical support, which can stably balance the pressure applied by the engraving head and reduce the vibration and deformation of the printing roller.

[0011] 2. This utility model also designs a support component by setting a silicone layer on the top of the support plate and a soft brush layer on top of the silicone layer. The silicone layer and soft brush layer on the top of the support plate can provide appropriate friction to prevent the printing roller from sliding and avoid scratching the surface of the printing roller, while also playing a buffering and shock absorption role. At the same time, when the motor drives the printing roller to rotate and adjust the engraving position, the soft brush layer can clean the engraved part of the printing roller surface, preventing waste from sticking to the surface for a long time and causing damage to the surface of the printing roller. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the frame assembly structure of this utility model; Figure 3This is a schematic diagram of the engraving component structure of this utility model; Figure 4 This is a schematic diagram of the lifting component structure of this utility model; Figure 5 This is a schematic diagram of the pallet structure of this utility model; Figure 6 This is a schematic diagram of the structure of the present invention in use. Figure 7 This is a schematic diagram of the clamping state movement direction structure of this utility model.

[0013] The following are the labeling instructions in the diagram: 1. Frame assembly; 101. Frame; 102. Motor; 103. Fixed three-jaw chuck; 104. Clamping cylinder; 105. Movable three-jaw chuck; 106. Top frame; 2. Engraving assembly; 201. Lifting cylinder; 202. Mounting frame; 203. Screw conveying mechanism; 204. Screw sliding sleeve; 205. Engraving mechanism; 206. Hinge; 207. Limiting baffle; 3. Lifting assembly; 301. Fixed frame; 302. Guide rod; 303. Guide sleeve; 304. Rocker; 305. Buffer mechanism; 306. Support plate; 3061. Silicone layer; 3062. Soft brush layer; 307. Hinge frame; 308. Connecting rod. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments: This utility model relates to an engraving device for a printing roller, comprising a frame assembly 1, an engraving assembly 2, and a support assembly 3. The engraving assembly 2 is fixedly connected inside the frame assembly 1, and the support assembly 3 is fixedly connected to one side of the frame assembly 1. The engraving assembly 2 includes a lifting cylinder 201 fixedly connected to the top of the frame assembly 1, a mounting frame 202 fixedly connected to the bottom output end of the lifting cylinder 201, a lead screw conveying mechanism 203 fixedly connected inside the mounting frame 202, a lead screw sleeve 204 threadedly connected to the surface of the lead screw conveying mechanism 203, and an engraving mechanism 205 fixedly connected to the bottom of the lead screw sleeve 204. The lifting cylinder 201 serves as the lifting power source for the engraving mechanism 205, and through telescopic movement, it drives the mounting frame 202 and the engraving mechanism 205 below it to move up and down as a whole, thereby realizing engraving. The head contacts or separates from the surface of the printing roller. The mounting bracket 202 is used to install the screw conveyor mechanism 203. The screw conveyor mechanism 203 consists of a screw and a drive component. Through rotational motion, it drives the screw sleeve 204 to move axially, thereby realizing the feeding motion of the engraving mechanism 205 along the length of the printing roller to meet the engraving needs of different positions. The screw sleeve 204 slides on the surface of the screw, converting the rotational motion of the screw into its own linear motion, driving the engraving mechanism 205 at the bottom to move synchronously, realizing the adjustment of the engraving position. The engraving mechanism 205 includes an engraving head. With the cooperation of the rotation of the printing roller and its own axial movement, it completes the engraving of patterns on the surface of the printing roller. The hinge 206 is used to connect to one end of the connecting rod 308. The limiting baffle 207 is used to limit the movement trajectory of the connecting rod 308.The lifting assembly 3 includes a fixed frame 301 fixedly connected to one side of the frame assembly 1, a guide rod 302 fixedly connected between the fixed frames 301, a guide sleeve 303 slidably connected to the surface of the guide rod 302, a rocker arm 304 fixedly connected to the surface of the guide sleeve 303, a buffer mechanism 305 fixedly connected to one end of the rocker arm 304, a support plate 306 fixedly connected to the top of the buffer mechanism 305, a hinge frame 307 fixedly connected to the other end of the rocker arm 304, and a connecting rod 308 fixedly connected to one side of the engraving mechanism 205 and connected at one end to the hinge frame 307. The fixed frame 301 provides mounting support for the guide rod 302, ensuring... The overall structure of the lifting assembly 3 is stable. The guide rod 302 provides a sliding track for the guide sleeve 303, allowing the guide sleeve 303 to move along the guide rod 302 and always provide support for the engraving position. The guide sleeve 303 can slide along the guide rod 302 and is hinged to the middle of the rocker plate 304, providing a fulcrum for the rocker plate 304 to rotate flexibly. The rocker plate 304 uses the guide sleeve 303 as a fulcrum and converts the downward force transmitted by the connecting rod 308 into the upward lifting force of the support plate 306 through the up-and-down movement of both ends, realizing the lifting and lowering action of the support plate 306. The buffer mechanism 305 is connected between the rocker plate 304 and the support plate 306. Between 06 and 06, elastic components such as springs are typically used to buffer the impact of the support plate 306 on the printing roller, preventing damage to the printing roller from rigid contact. Simultaneously, the support force can adaptively adjust according to the weight of the printing roller. The support plate 306 provides support for the printing roller. The hinge frame 307 connects the rocker arm 304 and the connecting rod 308, achieving a rotational connection between them and ensuring that the movement of the connecting rod 308 can be smoothly transmitted to the rocker arm 304. The connecting rod 308 connects the engraving mechanism 205 and the hinge frame 307, synchronously transmitting the lifting movement of the engraving mechanism 205 to the lifting assembly 3, causing the support plate 306 to move in tandem with the engraving mechanism 205, achieving synchronous lifting during engraving. The design incorporates a carving component 2 and a lifting component 3. When the carving mechanism 205 descends for carving, the lifting cylinder 201 moves the carving mechanism 205 downwards, simultaneously moving the connecting rod 308 downwards. During this downward movement, the connecting rod 308 applies downward pressure to one end of the rocker arm 304. Simultaneously, the other end of the rocker arm 304 lifts the support plate 306, supporting the bottom of the printing roller and effectively counteracting the shaking caused by the carving pressure. The support plates 306 are distributed on both sides of the carving mechanism 205, forming symmetrical support that can stably balance the pressure applied by the carving head, reducing vibration and deformation of the printing roller.

[0015] Specifically, the frame assembly 1 includes a frame 101, a top frame 106 fixedly connected to the top of the frame 101, a motor 102 fixedly connected to one side of the frame 101, a fixed three-jaw chuck 103 fixedly connected to the output end of the motor 102, a clamping cylinder 104 fixedly connected to the other side of the frame 101, and a movable three-jaw chuck 105 fixedly connected to the output end of the clamping cylinder 104. The frame 101 serves as the basic support structure for the entire device, bearing the installation of all components and ensuring the overall stability and structural strength of the device. The top frame 106 is used to fix and install the lifting cylinder 201, providing a top mounting point for the engraving assembly 2 and ensuring a stable support foundation for the lifting movement of the engraving mechanism 205. 102 provides rotational power, which drives the fixed three-jaw chuck 103 to rotate through the output end, thereby driving the printing roller to rotate synchronously, meeting the circumferential motion requirements of the printing roller during the engraving process. The fixed three-jaw chuck 103 is connected to the output end of the motor 102 and is used to clamp one end of the printing roller. Under the drive of the motor 102, the printing roller is rotated, while ensuring the positioning accuracy of the end of the printing roller. The clamping cylinder 104 is used to provide axial clamping force, driving the movable three-jaw chuck 105 to move axially, realizing the clamping and fixing of printing rollers of different lengths. The movable three-jaw chuck 105 moves under the action of the clamping cylinder 104 and cooperates with the fixed three-jaw chuck 103 to clamp the printing roller from both ends, ensuring that the printing roller will not move axially during the engraving process.

[0016] More specifically, the connecting rod 308 is bent, one end of the connecting rod 308 is connected to the engraving mechanism 205 through the hinge 206, and the hinge 206 is provided with a limit baffle 207. The other end of the connecting rod 308 is rotatably connected to the hinge frame 307, so as to facilitate the synchronous transmission of the lifting movement of the engraving mechanism 205 to the lifting component 3.

[0017] It is worth mentioning that the rocker plate 304 is set in a V shape, and the support plates 306 are distributed on both sides of the engraving mechanism 205 to form symmetrical support, which can stably balance the pressure applied by the engraving head and reduce the vibration and deformation of the printing roller.

[0018] It is worth noting that the support plate 306 is arc-shaped, and the curvature of the support plate 306 is the same as the curvature of the printing roller surface, which facilitates the complete fit between the support plate 306 and the bottom of the printing roller. A silicone layer 3061 is bonded to the top of the support plate 306, and a soft brush layer 3062 is bonded to the top surface of the silicone layer 3061. The top silicone layer 3061 plays a role in buffering and shock absorption, while the soft brush layer 3062 increases friction and avoids scratching the surface of the printing roller. At the same time, the soft brush layer 3062 can also wipe the surface of the printing roller when the printing roller rotates.

[0019] Working principle: This embodiment provides a printing roller engraving device. In use, the printing roller to be processed is placed between a fixed three-jaw chuck 103 and a movable three-jaw chuck 105. The clamping cylinder 104 is activated, causing the movable three-jaw chuck 105 to move and clamp both ends of the printing roller. The lifting cylinder 201 is activated, driving the mounting frame 202 and the engraving mechanism 205 to move downwards, approaching the surface of the printing roller. Simultaneously, as the engraving mechanism 205 moves downwards, the connecting rod 308 drives one end of the rocker arm 304 to move downwards. Due to the rocker arm 304... The part is hinged to the guide sleeve 303, and the other end of the rocker plate 304 is raised upward, driving the support plate 306 to rise and contact the bottom of the printing roller; as the engraving mechanism 205 continues to descend to the working position, the support plate 306 also rises to a suitable height simultaneously, forming a stable support for the printing roller; the start motor 102 drives the printing roller to rotate, and at the same time the lead screw conveyor mechanism 203 drives the engraving mechanism 205 to move axially, starting the engraving operation; during the engraving process, the support plate 306 always provides support for the printing roller, offsetting the pressure generated by the engraving head and reducing shaking.

[0020] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A plate engraving apparatus for a plate cylinder, characterized in that The assembly includes a frame assembly (1), an engraving assembly (2), and a lifting assembly (3). The engraving assembly (2) is located inside the frame assembly (1), and the lifting assembly (3) is located on one side of the frame assembly (1). The engraving assembly (2) includes a lifting cylinder (201) located at the top of the frame assembly (1), a mounting bracket (202) located at the bottom output end of the lifting cylinder (201), a lead screw conveying mechanism (203) located inside the mounting bracket (202), a lead screw sleeve (204) located on the surface of the lead screw conveying mechanism (203), and an engraving mechanism (205) located at the bottom of the lead screw sleeve (204). The lifting assembly (3) includes a fixed frame (301) disposed on one side of the frame assembly (1), a guide rod (302) disposed between the fixed frames (301), a guide sleeve (303) disposed on the surface of the guide rod (302), a rocker plate (304) disposed on the surface of the guide sleeve (303), a buffer mechanism (305) disposed at one end of the rocker plate (304), a support plate (306) disposed on the top of the buffer mechanism (305), a hinge frame (307) disposed at the other end of the rocker plate (304), and a connecting rod (308) disposed on one side of the engraving mechanism (205) and connected at one end to the hinge frame (307). When the lifting cylinder (201) drives the engraving mechanism (205) to move downward, it simultaneously drives the connecting rod (308) to move downward. During the downward movement of the connecting rod (308), it applies downward pressure to one end of the rocker (304). At this time, the other end of the rocker (304) drives the support plate (306) to rise, which lifts the bottom of the printing roller.

2. An engraving apparatus for engraving a plate as claimed in claim 1, wherein The frame assembly (1) includes a frame (101), a top frame (106) disposed on the top of the frame (101), a motor (102) disposed on one side of the frame (101), a fixed three-jaw chuck (103) disposed at the output end of the motor (102), a clamping cylinder (104) disposed on the other side of the frame (101), and a movable three-jaw chuck (105) disposed at the output end of the clamping cylinder (104).

3. An engraving apparatus for engraving a plate as claimed in claim 2, wherein The connecting rod (308) is bent. One end of the connecting rod (308) is connected to the engraving mechanism (205) via a hinge (206), and a limit baffle (207) is provided on the hinge (206). The other end of the connecting rod (308) is rotatably connected to the hinge frame (307).

4. An apparatus for engraving a plate as defined in claim 3, wherein The rocker arm (304) is arranged in a V-shape, and the support plate (306) is distributed on both sides of the engraving mechanism (205).

5. An apparatus for engraving a plate as defined in claim 4, wherein The tray (306) is arc-shaped, and the curvature of the tray (306) is the same as the curvature of the printing roller surface. A silicone layer (3061) is provided on the top of the tray (306), and a soft brush layer (3062) is provided on the top surface of the silicone layer (3061).

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