Processing method of rust-proof plate plug

Abstract

The processing method comprises the following steps: selecting a plate roller plate: selecting a circular plate made of medium carbon steel as an inner plate of the plate plug, and selecting a circular plate made of stainless steel as an outer plate of the plate plug; a first center hole is formed in the circle center position of the plate plug inner plate, and a second center hole is formed in the circle center position of the plate plug outer plate; welding holes are formed, wherein a plurality of sets of welding through holes are formed in the plate plug inner plate; the plate is fixed, specifically, the plate plug inner plate is stacked on the plate plug outer plate, the first center hole and the second center hole are coaxial, and the plate plug inner plate and the plate plug outer plate are fixed; the plate is welded, specifically, the plate plug inner plate and the plate plug outer plate are welded and fixed through the welding through holes; the outer circle of the plate plug inner plate is subjected to finish turning, so that the outer circle of the plate plug inner plate is matched with the inner diameter of the plate roller steel pipe; and center hole finish machining: the first center hole and the second center hole are subjected to finish machining until the diameters are the same. The invention solves the problem that the plate plug made of pure carbon steel is easy to rust and pollute printing ink after being washed with water.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plate roller processing, and particularly relates to a processing method of a rust-proof plate plug. BACKGROUND

[0002] In some printing scenarios, carbon-coated plate rollers and water-based conductive ink materials are used for printing, and the surface of the plate roller needs to be cleaned by water washing before and after printing. Since the plate plug at both ends of the plate roller is usually made of carbon steel, the outer surface of the plate plug is prone to rust after long-term water washing. When the outer surface of the plate plug rusts, the iron rust is easy to fall into the water-based conductive ink tank and mix with the ink. Once the surface of the plate roller is coated with the ink mixed with iron rust and then printing is performed, the printing quality will be seriously affected. Therefore, a processing method of a rust-proof plate plug needs to be invented. SUMMARY

[0003] The purpose of the application is to provide a plate plug inner plate drilling auxiliary structure to solve the problem that the plate plug made of pure carbon steel is prone to rust after water washing and pollutes the printing ink.

[0004] The technical solution adopted by the application to solve the technical problems is:

[0005] A processing method of a rust-proof plate plug, comprising the following steps:

[0006] Selecting plate roller plate materials: selecting a round plate made of carbon steel as a plate plug inner plate and selecting a round plate made of stainless steel as a plate plug outer plate;

[0007] Coarsely machining a center hole: a first center hole is formed at the center of the plate plug inner plate, and a second center hole is formed at the center of the plate plug outer plate;

[0008] Forming welding holes: a plurality of groups of welding through holes are formed on the plate plug inner plate;

[0009] Fixing the plate materials: the plate plug inner plate is stacked above the plate plug outer plate, the first center hole and the second center hole are coaxial, and the plate plug inner plate and the plate plug outer plate are fixed;

[0010] Welding the plate materials: the plate plug inner plate and the plate plug outer plate are fixed by welding through the welding through holes;

[0011] Machining the outer circle: the outer circle of the plate plug inner plate is precisely machined so that the outer circle of the plate plug inner plate is adapted to the inner diameter of the plate roller steel pipe;

[0012] Finely machining the center holes: the first center hole and the second center hole are finely machined to have the same diameter.

[0013] Preferably, in combination with the above-mentioned scheme, when the center holes are coarsely machined, the diameter of the first center hole is greater than or equal to the diameter of the second center hole.

[0014] Preferably, in combination with the above scheme, the welding through holes are arranged in a ring array centered on the first center hole.

[0015] Preferably, in combination with the above scheme, the welding through holes are arranged in a cross shape centered on the first center hole.

[0016] Preferably, in combination with the above scheme, after the step of finishing the center hole, key grooves are formed on the hole walls of the first center hole and the second center hole.

[0017] Preferably, in combination with the above scheme, when fixing the plate material, the inner plate and the outer plate are both sleeved on the fixed welding tool to complete the limiting stacking, and the inner plate and the outer plate are pressed and fixed by using the fixed welding tool.

[0018] Preferably, in combination with the above scheme, the fixed welding tool comprises a supporting plate, a limiting ring in a cylindrical structure is fixedly arranged on the upper end surface of the supporting plate, the limiting ring is used to pass through the first center hole and the second center hole, and the height of the limiting ring is greater than the thickness of the outer plate; a stud is fixedly arranged in the limiting ring, a pressing plate assembly for pressing and fixing the inner plate and the outer plate is sleeved on the stud, and a handle assembly is connected with the stud by screwing.

[0019] Preferably, in combination with the above scheme, the supporting plate is a circular plate, and the limiting ring is coaxial with the supporting plate.

[0020] Preferably, in combination with the above scheme, a fixed sleeve is arranged at the center of the inner circular groove of the limiting ring, the lower end of the fixed sleeve is fixedly connected with the upper end of the supporting plate, and the lower end of the stud is fixedly connected in the fixed sleeve.

[0021] Preferably, in combination with the above scheme, the pressing plate assembly comprises a supporting plate, and pressing plates are fixedly connected on both sides of the supporting plate, and the pressing plates and the supporting plate are connected to form an inverted U-shaped structure.

[0022] Preferably, in combination with the above scheme, the handle assembly comprises a nut screwed with the stud, and a handle is fixedly connected with the nut.

[0023] The present application has the following beneficial effects: the present application combines the outer plate of the plate lock made of stainless steel and the inner plate of the plate lock made of carbon steel, and processes the plate lock into a rust-proof plate lock, which can effectively prevent the outer side of the plate lock from being corroded after long-term washing, and ensure the printing quality of the ink printing. Meanwhile, the fixed welding tool used in the present application can limit and press the inner plate and the outer plate of the plate lock before welding, which can well ensure the positioning accuracy and the welding quality.

[0024] The present application will be described in more detail below with reference to the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 This is a structural diagram of the inner plate of the plate block in this invention.

[0026] Figure 2 This is a structural diagram of the inner plate of the plate block stacked on the outer plate of the plate block in this invention.

[0027] Figure 3 This is a structural diagram of a rust-proof plate plug according to the present invention.

[0028] Figure 4 This is a cross-sectional view of a rust-proof plate plug assembly on a printing roller steel pipe according to the present invention.

[0029] Figure 5 This is a structural diagram of the inner and outer plates of the plate stop in this invention assembled on a fixed welding fixture.

[0030] Figure 6 This is a side view of the inner and outer plates of the plate stop in this invention assembled on a fixed welding fixture.

[0031] Figure 7 This is a cross-sectional view of the inner and outer plates of the plate stop in this invention assembled on a fixed welding fixture.

[0032] Figure 8 This is a diagram showing the connection structure of the support plate, limiting ring, fixing sleeve and stud in this invention. Detailed Implementation

[0033] This embodiment provides a processing method for rust-proof plate plugs, the steps of which are as follows:

[0034] Step 1: Select the printing roller material: Select a round plate of carbon steel (medium carbon steel) as the inner plate 1 of the printing plate block and a round plate of stainless steel as the outer plate 2 of the printing plate block; Both materials can be purchased directly. The outer plate 2 and the outer plate 2 of the printing plate block can be pre-processed with their outer diameters to match the inner diameter of the opening of the printing roller steel pipe 10.

[0035] The inner plate 1 of the printing plate block uses medium carbon steel, a common material for printing plate blocks. Since the outer plate 2 of the printing plate block is frequently exposed to water, stainless steel is used to prevent rust. The inner plate 1 of the printing plate block, located inside the printing roller after assembly, will not be corroded or rusted by water once the tip blocks the second center hole 21. Even if the inner plate 1 rusts, the rust will only fall into the roller body and not into the water-based ink. Therefore, using medium carbon steel for the inner plate 1 can save on production costs.

[0036] In addition, after the printing roller blank is processed, the end caps of both ends need to be held in place by a center and placed in an electroplating tank for copper and chrome plating. Since the center will simultaneously contact the walls of the first center hole 11 and the second center hole 21, and because stainless steel has poor conductivity, if both the inner plate 1 and the outer plate 2 of the end cap are made of stainless steel, it will affect the plating quality of the printing roller surface. However, when the inner plate 1 of the end cap is made of medium carbon steel, since the inner plate 1 of the end cap is in direct contact with the printing roller steel tube 10, it will not affect the electroplating effect on the surface of the printing roller steel tube 10.

[0037] Step 2: Rough machining of the center hole: A first center hole 11 is made at the center of the inner plate 1 of the plate block, and a second center hole 21 is made at the center of the outer plate 2 of the plate block;

[0038] Step 3: Create welding holes: such as Figure 1 As shown, several sets of welding through holes 13 are opened on the inner plate 1 of the plate block; the welding through holes 13 penetrate the inner plate 1 of the plate block, but no welding holes are opened on the outer plate 2 of the plate block;

[0039] Step 4: Fix the board: such as Figure 2 As shown, the inner plate 1 of the plate block is stacked on top of the outer plate 2 of the plate block, so that the first center hole 11 and the second center hole 21 are coaxial, and the inner plate 1 and the outer plate 2 of the plate block are fixed to prevent displacement of the inner plate 1 and the outer plate 2 of the plate block during welding, which would affect the welding quality.

[0040] Step 5: Welding the plates: Weld the inner plate 1 and the outer plate 2 of the plate block to fix them through the welding through hole 13; Welding can fix the inner plate 1 and the outer plate 2 of the plate block into a whole, forming the inner and outer plate assembly of the plate block;

[0041] Step Six: Machining the Outer Diameter: Precision machine the outer diameter of the inner plate 1 of the printing plate block to ensure it matches the inner diameter of the printing roller steel pipe 10. If the outer diameter of the outer plate 2 of the printing plate block does not meet the installation requirements, it can also be precision machined. Figure 3 and Figure 4 As shown, after processing, the diameter of the inner plate 1 of the printing plate block is smaller than the diameter of the outer plate 2 of the printing plate block, forming a stepped surface that fits the opening of the printing roller steel tube 10. The outer circular surface of the outer plate 2 of the printing plate block can be clamped by a three-jaw chuck on a lathe, and then the outer circle of the inner plate 1 of the printing plate block can be machined by a cutting tool, so that the inner plate 1 of the printing plate block can be smoothly pressed into the printing roller steel tube 10.

[0042] Step 7: Finish machining the center hole: Finish machine the first center hole 11 and the second center hole 21 to make them have the same diameter, so that the first center hole 11 and the second center hole 21 are not only the same diameter but also coaxially arranged. This center hole is used to fit the centers at both ends of the equipment.

[0043] When rough machining the center hole, it is necessary to ensure that the diameter of the first center hole 11 is slightly larger than or equal to the diameter of the second center hole 21. Alternatively, the inner plate 1 and outer plate 2 of the plate plug with pre-machined center holes can be purchased separately. Due to the rough machining errors of different manufacturers, the center hole dimensions of the inner plate 1 and outer plate 2 of the plate plug may have slight deviations. If the diameter of the first center hole 11 is slightly larger than the second center hole 21, it is easier to observe and align the inner plate 1 and outer plate 2 of the plate plug, and it is also easier for the inner plate 1 and outer plate 2 of the plate plug to be fitted onto the limiting ring 4 of the fixed welding fixture.

[0044] To ensure the stability of the welded structure, the welded through holes 12 are arranged in a ring array with the first central hole 11 as the center.

[0045] To ensure the stability of the welded structure and make the weld more robust, four sets of welding through holes 12 are provided and arranged in a cross shape with the first central hole 11 as the center.

[0046] After completing the finishing of the center hole, step eight can be performed: (e.g., ...) Figure 4 As shown, keyways 12 are formed on the walls of the first center hole 11 and the second center hole 21. To prevent slippage between the plate block and the device tip, the keyways 12 are designed to mate with the key body of the tip.

[0047] In order to accurately position and press and fix the inner plate 1 and the outer plate 2 of the plate block, and to ensure the subsequent processing quality and welding effect, when fixing the plates, the inner plate 1 and the outer plate 2 of the plate block are both placed on the fixed welding fixture to complete the limited stacking, and the fixed welding fixture is used to press and fix the inner plate 1 and the outer plate 2 of the plate block.

[0048] To facilitate accurate positioning of the inner plate 1 and the outer plate 2 of the plate block, and to ensure welding quality, such as Figures 5 to 8 As shown, the fixed welding fixture includes a support plate 3, and a cylindrical limiting ring 4 is fixedly provided on the upper end surface of the support plate 3. The limiting ring 4 is used to pass through the first central hole 11 and the second central hole 21. The height of the limiting ring 4 is greater than the thickness of the outer plate 2 of the plate stop. A stud 6 is fixedly provided in the limiting ring 4. A pressure plate assembly 7 for pressing and fixing the inner plate 1 and the outer plate 2 of the plate stop is sleeved on the stud 6. A handle assembly 8 is screwed onto the stud 6.

[0049] For ease of processing and positioning, such as Figure 8 As shown, the tray 3 is a circular plate, and the limiting ring 4 is coaxial with the tray 3.

[0050] To facilitate the installation and fixing of stud 6, such as Figure 7 and Figure 8As shown, a fixing sleeve 5 is provided at the center of the inner circular groove 41 of the limiting ring 4. The lower end of the fixing sleeve 5 is fixedly connected to the upper end of the support plate 3, and the lower end of the stud 6 is fixedly connected in the fixing sleeve 5.

[0051] To facilitate the pressing of the upper end face of the inner plate 1 of the sealing plate, such as Figures 5 to 7 As shown, the pressure plate assembly 7 includes a support plate 71, and pressure plates 72 are fixedly connected to both sides of the support plate 71. The pressure plates 72 and the support plate 71 are connected to form an inverted U-shaped structure.

[0052] To facilitate tightening and pressing down the inner plate 1 and outer plate 2 of the plate block through the handle assembly, the handle assembly 8 includes a nut 81 screwed to the stud 6, and a handle 82 is fixedly connected to the nut 81.

[0053] To prevent the flatness of the upper surface of the support plate 3 from affecting the fixed fit between the inner plate 1 and the outer plate 2 of the plate stop, and to better weld and fix the limiting ring 4 to the support plate 3, such as... Figure 6 and Figure 7 As shown, the lower end of the limiting ring 4 is provided with a supporting flange 41, the upper end of the supporting flange 41 is used to support the outer plate 2, and the supporting flange 41 is fixedly connected to the support plate 3 by welding.

[0054] The method of using the fixed welding fixture in this invention:

[0055] First, place the outer plate 2 of the plate plug with the welding through hole 13 on the limiting ring 4. Then, place the inner plate 1 of the plate plug on the limiting ring 4 and stack it on the outer plate 2 of the plate plug. Next, place the pressure plate assembly 7 on the stud 6. Finally, place the handle assembly 8 on the stud 6 and rotate the handle 82 to tighten it. The pressure plate assembly 7 will firmly press the inner plate 1 and the outer plate 2 of the plate plug, and then the welding operation can be carried out.

[0056] After welding is completed, the inner and outer plates of the plate plug are removed, and the outer circle of the inner plate 1 of the plate plug is precision machined so that the outer circle of the inner plate 1 of the plate plug is adapted to the inner diameter of the plate roller steel pipe 10. Then, the first center hole 11 and the second center hole 21 are precision machined into center holes with the same diameter, and a keyway 12 is opened on the hole wall of the center hole to complete the processing of the anti-rust plate plug in this embodiment.

[0057] In the description of this invention, it should be understood that terms such as “center,” “longitudinal,” “lateral,” “vertical,” “horizontal,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “bottom,” “inner,” “outer,” “top,” “one end,” “one side,” “both ends,” “both sides,” “clockwise,” and “counterclockwise” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this patent, unless otherwise stated, "a plurality of" means two or more.

[0059] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0060] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct applications in other situations, fall within the protection scope of the present invention.

Claims

1. A processing method for a rust-proof plate plug, comprising the following steps: Selecting the printing roller material: Select a round plate made of carbon steel as the inner plate of the printing plate (1), and select a round plate made of stainless steel as the outer plate of the printing plate (2). Rough machining of center holes: A first center hole (11) is opened at the center of the inner plate (1) of the plate block, and a second center hole (21) is opened at the center of the outer plate (2) of the plate block. Make welding holes: Make several sets of welding through holes (13) on the inner plate (1) of the plate block; Fixing the plate: Stack the inner plate (1) on top of the outer plate (2) so that the first center hole (11) and the second center hole (21) are coaxial, and fix the inner plate (1) and the outer plate (2); Welding plates: The inner plate (1) of the plate block and the outer plate (2) of the plate block are welded and fixed through the welding through hole (13); Machining the outer circle: precision machining the outer circle of the inner plate (1) of the plate block to make the outer circle of the inner plate (1) of the plate block fit the inner diameter of the plate roller steel pipe (10); Finishing the center holes: Finish the first center hole (11) and the second center hole (21) to have the same diameter.

2. The processing method of the rust-proof plate plug as described in claim 1, characterized in that, When rough machining the center hole, the diameter of the first center hole (11) is greater than or equal to the diameter of the second center hole (21).

3. The processing method for the rust-proof plate plug as described in claim 1, characterized in that, The welding through holes (12) are arranged in a ring array with the first central hole (11) as the center.

4. The processing method for the rust-proof plate plug as described in claim 3, characterized in that, The welding through holes (12) are arranged in four groups, and are arranged in a cross shape with the first central hole (11) as the center.

5. The processing method of the rust-proof plate plug as described in claim 1, characterized in that, After completing the finishing of the center hole, keyways (12) are made on the hole walls of the first center hole (11) and the second center hole (21).

6. The processing method of the rust-proof plate plug as described in claim 1, characterized in that, When fixing the plate, the inner plate (1) and the outer plate (2) of the plate block are both placed on the fixing welding fixture to complete the limited stacking, and the fixing welding fixture is used to press and fix the inner plate (1) and the outer plate (2).

7. The processing method for the rust-proof plate plug as described in claim 6, characterized in that, The fixed welding fixture includes a support plate (3), and a cylindrical limiting ring (4) is fixedly provided on the upper end surface of the support plate (3). The limiting ring (4) is used to pass through the first central hole (11) and the second central hole (21). The height of the limiting ring (4) is greater than the thickness of the outer plate (2) of the plate block. A stud (6) is fixedly provided in the limiting ring (4). A pressure plate assembly (7) for pressing and fixing the inner plate (1) and the outer plate (2) of the plate block is sleeved on the stud (6). A handle assembly (8) is screwed onto the stud (6).

8. The processing method of the rust-proof plate plug as described in claim 7, characterized in that, The tray (3) is a circular plate, and the limiting ring (4) is coaxial with the tray (3).

9. The processing method of the rust-proof plate plug as described in claim 8, characterized in that, A fixing sleeve (5) is provided at the center of the inner circular groove (41) of the limiting ring (4). The lower end of the fixing sleeve (5) is fixedly connected to the upper end of the support plate (3), and the lower end of the stud (6) is fixedly connected in the fixing sleeve (5).

10. The processing method of the rust-proof plate plug as described in claim 7, characterized in that, The pressure plate assembly (7) includes a support plate (71), and pressure plates (72) are fixedly connected to both sides of the support plate (71). The pressure plates (72) and the support plate (71) are connected to form an inverted U-shaped structure.

11. The processing method of the rust-proof plate plug as described in claim 7, characterized in that, The handle assembly (8) includes a nut (81) screwed to a stud (6), and a handle (82) is fixedly connected to the nut (81).

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