Thermal spraying device for anilox roller of printing machine

Abstract

The anilox roller thermal spraying device comprises a machine base, a support, an adjusting shaft, a fixed frame and a movable frame, the support is installed on the machine base, the adjusting shaft is installed at the upper end of the support, the fixed frame is installed at one end of the adjusting shaft, and the movable frame is connected with the other end of the adjusting shaft in a sliding mode. The movable frame and the adjusting shaft are fixed through an adjusting screw rod; a plurality of sets of first connecting frames and second connecting frames are arranged on the outer edge of the fixed frame and the outer edge of the movable frame respectively, the first connecting frames are provided with first supporting bearings, the second connecting frames are provided with mounting frames, and the mounting frames are provided with second supporting bearings. The first supporting bearing and the second supporting bearing are provided with a first connecting shaft and a second connecting shaft which are connected with the two ends of the anilox roller respectively. The anilox roller can be stably supported, the stability of the anilox roller during rotation is enhanced, and the spraying effect is improved.

Description

Technical Field

[0001] This utility model relates to a spraying device, specifically to a thermal spraying device for an anilox roller of a printing press. Background Technology

[0002] A printing press is a device that prints patterns or text on a flat surface such as paper. The main component that performs the printing function is the anilox roller inside the printing press. The anilox roller has a large number of ink holes, which can store and transfer ink and evenly transfer the ink to the printing plate. During the production of the anilox roller, thermal spraying is performed on the outside of the anilox roller. For example, in the manufacturing of ceramic anilox rollers, a high-hardness and corrosion-resistant ceramic layer can be sprayed on the outside of the metal base roller to facilitate subsequent laser engraving of the cells.

[0003] Chinese utility model patent (publication number CN222568122U) discloses a surface coating device for anilox rollers of a printing press, including a frame, a coating component and a drive clamping component mounted on the frame, and a feeding mechanism mounted on the frame, located in front of the drive clamping component. The feeding mechanism includes a switching feeding component for loading and unloading the anilox roller, comprising two baffles fixed to the top of the frame, with a main shaft rotatably connected between the two baffles. The right side of the main shaft is a splined shaft, and a first four-bar disc is fixedly connected to the right side of the main shaft surface. This utility model relates to the field of anilox roller processing technology. This surface coating device for anilox rollers of a printing press can quickly complete the loading and unloading operations by switching the feeding component, improving the working efficiency of the device. Furthermore, switching the feeding component allows the coated anilox roller to wait for drying before unloading, avoiding damage to the coated surface.

[0004] The aforementioned utility model patent utilizes components such as a rotatable first four-bar disc to rotate and place multiple sets of anilox rollers during spraying. During processing, the sprayed anilox rollers can be rotated to another position for drying, thus assisting in the loading and unloading of the anilox rollers. However, this utility model cannot provide rotational support for the connecting shaft of the anilox rollers when fixing them. When the anilox rollers rotate for spraying, the connecting shaft will rotate and rub against the inner wall of the first four-bar disc, affecting the stability of the connecting shaft during rotation and causing vertical displacement. This prevents the connecting shaft from being centered, fixed, and rotating, affecting the spraying effect. Furthermore, there is no external protective plate structure when the anilox rollers are placed, so the sprayed paint may splash onto the sprayed anilox rollers during spraying. Therefore, there is an urgent need for a thermal spraying device for anilox rollers in a printing press to solve these problems. Utility Model Content

[0005] The primary objective of this invention is to overcome the shortcomings of the existing technology and provide a thermal spraying device for anilox rollers in a printing press. This thermal spraying device provides stable support for the anilox rollers, thereby improving the spraying effect.

[0006] The objective of this utility model is achieved through the following technical solution: The anilox roller thermal spraying device of this printing press includes a base, a bracket, an adjusting shaft, a fixed frame, and a movable frame. The bracket is installed on the base, the adjusting shaft is installed on the upper end of the bracket, the fixed frame is installed on one end of the adjusting shaft, and the movable frame is slidably connected to the other end of the adjusting shaft, and the movable frame is fixed to the adjusting shaft by an adjusting screw. The outer edges of the fixed frame and the movable frame are respectively provided with multiple sets of first connecting frames and second connecting frames. The first connecting frame is provided with a first support bearing, and the second connecting frame is provided with a mounting frame, which is provided with a second support bearing. The first support bearing and the second support bearing are respectively provided with a first connecting shaft and a second connecting shaft connected to both ends of the anilox roller.

[0007] Preferably, the mounting frame includes a connecting plate, a support frame, a support rod, a pressure rod, a rotating rod, and an adjusting frame. The support frame is fixed to the second connecting frame. The lower end of the connecting plate is mounted to the second connecting frame via the rotating rod, and one end of the rotating rod extends out of the support frame. One end of the rotating rod is provided with an adjusting wheel. One end of the adjusting frame is fixed to the upper end of the connecting plate. The support rod is fixed to the adjusting frame via the pressure rod, and one end of the support rod is connected to the second connecting shaft fixed to the second support bearing.

[0008] Preferably, one end of the pressure rod is hinged to the adjustment frame, the other end of the pressure rod is fixed by a nut, and the rod body of the pressure rod is provided with a pressure groove that matches the support rod, and the upper end of the adjustment frame is provided with a receiving groove that matches the support rod.

[0009] Preferably, the anilox roller thermal spraying device of the printing machine further includes a positioning rod, and the movable frame is provided with a positioning hole that matches the positioning rod. One end of the positioning rod passes through the fixed frame and is inserted into the positioning hole.

[0010] Preferably, the anilox roller thermal spraying device of the printing machine further includes a control motor, an electric push rod, and a control frame. The electric push rod is mounted on the machine base via the control frame, the control frame is provided with a slide rail, the control motor is mounted on the slide rail via a slider, and the telescopic rod of the electric push rod is connected to the slide rail. The output shaft of the control motor is fixed with a control rod, and when the anilox roller is driven to rotate, the control rod is connected to the first connecting shaft.

[0011] Preferably, the end of the first connecting shaft is provided with a hexagonal control hole that matches the end of the control rod. When the anilox roller is driven to rotate, the control rod is inserted into the control hole.

[0012] Preferably, the anilox roller thermal spraying device of the printing press further includes multiple protective plates, one side of which is fixed to the adjusting shaft, and the protective plates and the anilox roller are alternately distributed.

[0013] Preferably, the outer wall of the movable frame is provided with multiple fixing holes, which are arranged in a circular array relative to the axis of the movable frame. One end of the adjusting screw is screwed into one of the fixing holes and abuts against the adjusting shaft.

[0014] Preferably, the shaft of the adjusting shaft is provided with a key bar, and the inner hole of the movable frame is provided with a sliding groove that matches the key bar. When the movable frame is connected to the adjusting shaft, the key bar is embedded in the sliding groove.

[0015] This invention has the following advantages over the prior art:

[0016] 1. The anilox roller thermal spraying device of this utility model mainly consists of a base, a bracket, an adjusting shaft, a fixed frame, and a movable frame. By adding support bearings and other structures to the fixed frame and the movable frame, the connection with the anilox roller is improved and the support is made more stable, thereby increasing the stability of the roller body during rotation, reducing the off-center deviation of the roller body during rotation, realizing stable support during spraying when the anilox roller rotates, and improving the spraying effect.

[0017] 2. In the anilox roller thermal spraying device of the printing press of this utility model, the movable frame is slidably connected to the adjusting shaft and then fixed by the adjusting screw, thereby adjusting the distance between the movable frame and the fixed frame, so that the device can meet the needs of anilox rollers of different sizes.

[0018] 3. The anilox roller thermal spraying device of the printing press of this utility model includes a mounting frame connecting plate, a support frame, a support rod, a pressure rod, a rotating rod, and an adjusting frame. During the rotation of the rotating rod, the connecting plate moves along the rotation axis, thereby driving the movement of the second support bearing. This allows for small-range adjustment of the first and second support bearings, facilitating the disassembly and assembly of the anilox roller and improving the spraying efficiency of the anilox roller.

[0019] 4. The anilox roller thermal spraying device of the printing press of this utility model is equipped with protective plates on the adjusting shaft. Each protective plate separates the adjacent anilox rollers, so when spraying one anilox roller, the paint is prevented from splashing onto another anilox roller that has already been sprayed, thus affecting the spraying effect of the anilox roller. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the anilox roller thermal spraying device for the printing press of this utility model.

[0021] Figure 2 This is a structural diagram of the support, fixing frame, moving frame, and anilox roller of the anilox roller thermal spraying device for the printing press of this utility model.

[0022] Figure 3 yes Figure 2 Based on this, a disassembled diagram showing the relationship between the support structure and other parts is provided.

[0023] Figure 4 This is a schematic diagram of the structure between the anilox roller, adjusting shaft, and moving frame of the anilox roller thermal spraying device for a printing press according to this utility model.

[0024] Figure 5 The structural diagram of the movable frame and the mounting frame of this utility model is a structural diagram of the relationship between the movable frame and the mounting frame.

[0025] Figure 6 A schematic diagram of the installation structure of the control motor and electric push rod of this utility model.

[0026] Among them, 1 is the base, 2 is the bracket, 3 is the adjusting shaft, 4 is the fixed frame, 5 is the moving frame, 6 is the adjusting screw, 7 is the first connecting frame, 8 is the second connecting frame, 9 is the first support bearing, 10 is the mounting frame, 11 is the second support bearing, 12 is the first connecting shaft, 13 is the second connecting shaft, 14 is the spraying assembly, 15 is the connecting plate, 16 is the support frame, 17 is the support rod, 18 is the pressure rod, 19 is the rotating rod, 20 is the adjusting frame, 21 is the adjusting wheel, 22 is the nut, 23 is the pressure groove, 24 is the receiving groove, 25 is the positioning rod, 26 is the positioning hole, 27 is the control motor, 28 is the electric push rod, 29 is the control frame, 30 is the slide rail, 31 is the slider, 32 is the control rod, 33 is the protective plate, 34 is the fixing hole, 35 is the key strip, 36 is the slide groove, and 37 is the anilox roller. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] like Figures 1-5 The anilox roller thermal spraying device of the printing press shown includes a base, a bracket, an adjusting shaft, a fixed frame, and a movable frame. The bracket is mounted on the base, the adjusting shaft is mounted on the upper end of the bracket, the fixed frame is mounted on one end of the adjusting shaft, and the movable frame is slidably connected to the other end of the adjusting shaft, and the movable frame and the adjusting shaft are fixed together by an adjusting screw. The outer edges of the fixed frame and the movable frame are respectively provided with multiple sets of first connecting frames and second connecting frames. The first connecting frame is provided with a first support bearing, and the second connecting frame is provided with a mounting frame, which is provided with a second support bearing. The first support bearing and the second support bearing are respectively provided with a first connecting shaft and a second connecting shaft connected to both ends of the anilox roller.

[0030] like Figure 1As shown, the anilox roller thermal spraying device of this printing press has a spraying assembly at the upper end of the base. This spraying assembly mainly consists of pipes and a spraying mechanism, with the spraying machine positioned above the anilox roller and connected to the nozzles via pipes. Specifically, in this embodiment, both the first and second connecting frames have four sets. The four sets of first connecting frames are arranged in a circular array relative to the axis of the fixed frame, and the four sets of second connecting frames are also arranged in a circular array relative to the axis of the movable frame, with the first and second connecting frames positioned opposite each other. The four anilox rollers are connected to the first support bearings on the first connecting frame and the second support bearings on the second connecting frame via corresponding first and second connecting shafts, respectively. When feeding the anilox rollers, the movable frame and the fixed frame are rotated to achieve rapid switching, allowing the spraying machine to spray the corresponding anilox rollers through the nozzles, thus improving spraying efficiency. Due to the placement of the first and second support bearings, the anilox roller is prevented from shifting vertically during the spraying process by the first and second connecting shafts, ensuring the stability of the anilox roller during rotation and thus improving the spraying effect. When installing the anilox roller, the movable frame is first slid a suitable distance along the axis of the adjusting shaft. Then, the adjusting screw is inserted into the fixing hole of the movable frame and pressed against the adjusting shaft to fix the movable frame in the appropriate position on the adjusting shaft, thus accommodating anilox rollers of different sizes.

[0031] like Figures 2 to 5 As shown, the mounting frame includes a connecting plate, a support frame, a support rod, a pressure rod, a rotating rod, and an adjusting frame. The support frame is fixed to the second connecting frame. The lower end of the connecting plate is mounted to the second connecting frame via the rotating rod, and one end of the rotating rod extends out of the support frame. One end of the rotating rod is provided with an adjusting wheel. One end of the adjusting frame is fixed to the upper end of the connecting plate. The support rod is fixed to the adjusting frame via the pressure rod, and one end of the support rod is connected to the second connecting shaft fixed to the second support bearing. Specifically, the upper end of the adjusting frame is provided with a connecting hole for connecting to the connecting plate, which facilitates the installation of the entire adjusting frame on the upper end of the connecting plate. When installing the anilox roller, the rotating rod is first rotated by adjusting the wheel to move the second support bearing mounted on the mounting frame along the outer end of the rotating rod, increasing the distance between the first and second support bearings. Then, one end of the anilox roller is fixed to the first connecting shaft, and the other end of the anilox roller is aligned with the second connecting shaft. Then, the adjusting wheel is rotated again to bring the first and second support bearings closer together, so that the second connecting shaft is connected to the other end of the anilox roller. This operation is simple and facilitates the assembly and disassembly of the anilox roller, improving coating efficiency. Simultaneously, the second support bearing is installed using this method, which not only facilitates the assembly and disassembly of the anilox roller but also ensures the stability of its rotation during coating.

[0032] One end of the pressure rod is hinged to the adjusting frame, and the other end of the pressure rod is fixed by a nut. The rod body has a pressure groove that matches the support rod, and the upper end of the adjusting frame has a receiving groove that matches the support rod. The upper and lower sides of the support rod body are respectively clamped by the pressure groove of the pressure rod and the receiving groove of the adjusting frame. This stability during fixing further ensures convenient assembly and disassembly, and improves the stability of the anilox roller rotation.

[0033] The anilox roller thermal spraying device for the printing press also includes a positioning rod. The movable frame has positioning holes that match the positioning rod, and one end of the positioning rod passes through the fixed frame and is inserted into the positioning hole. By connecting the positioning rod to the positioning holes at different positions, the movable frame can be fixed at different angles so that the corresponding anilox roller is located directly below the spraying assembly. This facilitates the switching of anilox rollers and further improves the stability of the anilox rollers during rotation, thereby improving the spraying effect.

[0034] like Figure 1 and Figure 6 As shown, the anilox roller thermal spraying device for the printing press further includes a control motor, an electric push rod, and a control frame. The electric push rod is mounted on the machine base via the control frame, which has a slide rail. The control motor is mounted on the slide rail via a slider, and the telescopic rod of the electric push rod is connected to the slide rail. A control rod is fixed to the output shaft of the control motor. When the anilox roller is driven to rotate, the control rod is connected to the first connecting shaft. The electric push rod adjusts the movement of the control motor via the slide rail and the slider, thereby controlling the control rod fixed to the output shaft of the control motor to insert or withdraw from the control hole of the first connecting shaft. This does not affect the switching of the anilox roller, facilitates the alternating switching of the anilox roller position, and further improves the spraying efficiency.

[0035] The end of the first connecting shaft is provided with a hexagonal control hole that matches the end of the control rod. When the anilox roller is driven to rotate, the control rod is inserted into the control hole. Specifically, the cross-section of the control rod is also hexagonal. After the control rod is inserted into the control hole, it can stably drive the rotation of the first connecting shaft, ensuring that the anilox roller can rotate stably and improving the coating effect.

[0036] The anilox roller thermal spraying device of the printing press also includes multiple protective plates, one side of which is fixed to an adjusting shaft, and the protective plates and the anilox roller are alternately distributed. Figure 1 As shown, this embodiment uses four protective plates, with one protective plate separating each two adjacent anilox rollers. This ensures that during the spraying process on the topmost anilox roller, the splashed paint will not reach other anilox rollers, thus avoiding any impact on them.

[0037] The outer wall of the movable frame is provided with multiple fixing holes, which are arranged in a circular array relative to the axis of the movable frame. One end of the adjusting screw is screwed into one of the fixing holes and abuts against the adjusting shaft. When rotating the movable frame to switch the position of the anilox roller, the adjusting screw can be inserted into the corresponding fixing hole, which facilitates the installation and fixation of the adjusting screw and ensures the stability of the movable frame.

[0038] The adjusting shaft has a keyway, and the inner hole of the movable frame has a groove that matches the keyway. When the movable frame is connected to the adjusting shaft, the keyway is embedded in the groove. The keyway further improves the stability of the movable frame and prevents slippage between the movable frame and the adjusting shaft.

[0039] The above-described specific embodiments are preferred embodiments of this utility model and are not intended to limit this utility model. Any other changes or equivalent substitutions made without departing from the technical solution of this utility model are included within the protection scope of this utility model.

Claims

1. A thermal spraying device for an anilox roller of a printing press, characterized in that: The device includes a base, a bracket, an adjusting shaft, a fixed frame, and a movable frame. The bracket is mounted on the base, the adjusting shaft is mounted on the upper end of the bracket, the fixed frame is mounted on one end of the adjusting shaft, and the movable frame is slidably connected to the other end of the adjusting shaft, and the movable frame and the adjusting shaft are fixed together by an adjusting screw. The outer edges of the fixed frame and the movable frame are respectively provided with multiple sets of first connecting frames and second connecting frames. The first connecting frame is provided with a first support bearing, and the second connecting frame is provided with a mounting frame, which is provided with a second support bearing. The first support bearing and the second support bearing are respectively provided with a first connecting shaft and a second connecting shaft connected to both ends of the anilox roller.

2. The anilox roller thermal spraying device for a printing press according to claim 1, characterized in that: The mounting frame includes a connecting plate, a support frame, a support rod, a pressure rod, a rotating rod, and an adjusting frame. The support frame is fixed to the second connecting frame. The lower end of the connecting plate is mounted to the second connecting frame via the rotating rod, and one end of the rotating rod extends out of the support frame. One end of the rotating rod is provided with an adjusting wheel. One end of the adjusting frame is fixed to the upper end of the connecting plate. The support rod is fixed to the adjusting frame via the pressure rod, and one end of the support rod is connected to the second connecting shaft fixed to the second support bearing.

3. The anilox roller thermal spraying device for a printing press according to claim 2, characterized in that: One end of the pressure rod is hinged to the adjustment frame, and the other end of the pressure rod is fixed by a nut. The rod body of the pressure rod is provided with a pressure groove that matches the support rod, and the upper end of the adjustment frame is provided with a receiving groove that matches the support rod.

4. The anilox roller thermal spraying device for a printing press according to claim 1, characterized in that: It also includes a positioning rod, and the movable frame is provided with a positioning hole that matches the positioning rod. One end of the positioning rod passes through the fixed frame and is inserted into the positioning hole.

5. The anilox roller thermal spraying device for a printing press according to claim 1, characterized in that: It also includes a control motor, an electric push rod, and a control frame. The electric push rod is mounted on the machine base via the control frame. The control frame is equipped with a slide rail. The control motor is mounted on the slide rail via a slider. The telescopic rod of the electric push rod is connected to the slide rail. The output shaft of the control motor is fixed with a control rod. When the anilox roller is driven to rotate, the control rod is connected to the first connecting shaft.

6. The anilox roller thermal spraying device for a printing press according to claim 5, characterized in that: The end of the first connecting shaft is provided with a hexagonal control hole that matches the end of the control rod. When the anilox roller is driven to rotate, the control rod is inserted into the control hole.

7. The anilox roller thermal spraying device for a printing press according to claim 1, characterized in that: It also includes multiple protective plates, one side of which is fixed to the adjusting shaft, and the protective plates and the anilox roller are distributed alternately.

8. The anilox roller thermal spraying device for a printing press according to claim 1, characterized in that: The outer wall of the movable frame is provided with multiple fixing holes, which are arranged in a circular array relative to the axis of the movable frame. One end of the adjusting screw is screwed into one of the fixing holes and abuts against the adjusting shaft.

9. The anilox roller thermal spraying device for a printing press according to claim 1, characterized in that: The adjusting shaft has a key bar on its shaft body, and the inner hole of the movable frame has a sliding groove that matches the key bar. When the movable frame is connected to the adjusting shaft, the key bar is embedded in the sliding groove.

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