A processing method of a rust-proof plug

Abstract

The present application relates to a kind of processing methods of rust-proof version plug, steps are as follows: selecting version roller plate material: selecting the round plate of medium carbon steel material as version plug inner plate, selecting the round plate of stainless steel material as version plug outer plate;Rough machining center hole: first center hole is set in the center position of version plug inner plate, second center hole is set in the center position of version plug outer plate;Setting welding hole: a plurality of groups of welding through holes are set on version plug inner plate;Fixed plate material: version plug inner plate is stacked above version plug outer plate, so that first center hole and second center hole are coaxial, and version plug inner plate and version plug outer plate are fixed;Welding plate material: version plug inner plate is fixed with version plug outer plate by welding through hole;Processing outer circle: finish turning the outer circle of version plug inner plate, so that the outer circle of version plug inner plate is adapted to the inner diameter of version roller steel pipe;Finish machining center hole: first center hole and second center hole are finished to be same diameter.The present application solves the problem that pure carbon steel material version plug is easy to rust after washing, and pollutes printing ink.

Description

Technical Field

[0001] This invention belongs to the field of printing roller processing technology, and particularly relates to a processing method for preventing rust blockage. Background Technology

[0002] In some printing applications, carbon-coated printing rollers and water-based conductive inks are used. Both before and after printing, the roller surface needs to be washed and cleaned. Since the printing plate plugs at both ends of the roller are typically made of carbon steel, prolonged washing can easily cause their outer surface to rust. When the plug surface rusts, the rust easily falls into the water-based conductive ink tank and mixes with the ink. If the printing roller surface is coated with ink containing rust, printing quality will be severely affected. Therefore, a rust-proof printing plate plug processing method is needed. Summary of the Invention

[0003] The purpose of this invention is to provide an auxiliary structure for drilling holes in the inner plate of the printing plate block, which solves the problem that printing plate blocks made of pure carbon steel are prone to rusting after washing and contaminating printing ink.

[0004] The technical solution adopted by this invention to solve its technical problem is: A method for processing a rust-proof plate plug, comprising the following steps: Selection of printing roller materials: Carbon steel round plates are selected as the inner plate of the printing plate block, and stainless steel round plates are selected as the outer plate of the printing plate block. Rough machining of center holes: A first center hole is made at the center of the inner plate of the plate block, and a second center hole is made at the center of the outer plate of the plate block; Welding holes are made: Several sets of welding through holes are made on the inner plate of the plate block; Fixing the plate: Stack the inner plate of the plate block on top of the outer plate of the plate block, make the first center hole and the second center hole coaxial, and fix the inner plate of the plate block and the outer plate of the plate block; Welded plates: The inner plate and outer plate of the plate block are welded and fixed together through welding through holes; Machining the outer diameter: precision machine the outer diameter of the inner plate of the plate stopper to make the outer diameter of the inner plate of the plate stopper fit the inner diameter of the plate roller steel pipe; Finish machining of center holes: Finish machining of the first and second center holes to make them have the same diameter.

[0005] Preferably, in conjunction with the above scheme, when rough machining the center hole, the diameter of the first center hole is greater than or equal to the diameter of the second center hole.

[0006] Preferably, in combination with the above scheme, the welding through holes are arranged in a ring array with the first central hole as the center.

[0007] Preferably, in conjunction with the above scheme, four sets of welding through holes are provided, and arranged in a cross shape with the first central hole as the center.

[0008] Preferably, in conjunction with the above scheme, after completing the finishing of the center hole, keyways are formed on the hole walls of the first center hole and the second center hole.

[0009] Preferably, in conjunction with the above scheme, when fixing the plate, both the inner plate and the outer plate of the plate block are fitted onto the fixing welding fixture to complete the limiting stacking, and the fixing welding fixture is used to press and fix the inner plate and the outer plate of the plate block.

[0010] Preferably, in conjunction with the above scheme, the fixed welding fixture includes a support plate, and a cylindrical limiting ring is fixedly provided on the upper end surface of the support plate. The limiting ring is used to pass through the first central hole and the second central hole, and the height of the limiting ring is greater than the thickness of the outer plate of the plate stopper. A stud is fixedly provided in the limiting ring, and a pressure plate assembly for pressing and fixing the inner plate of the plate stopper and the outer plate of the plate stopper is sleeved on the stud. A handle assembly is screwed onto the stud.

[0011] Preferably, in combination with the above scheme, the tray is a circular plate, and the limiting ring is coaxial with the tray.

[0012] Preferably, in conjunction with the above scheme, a fixing sleeve is provided at the center of the inner groove of the limiting ring, the lower end of the fixing sleeve is fixedly connected to the upper end of the support plate, and the lower end of the stud is fixedly connected in the fixing sleeve.

[0013] Preferably, in conjunction with the above scheme, the pressure plate assembly includes a support plate, and pressure plates are fixedly connected to both sides of the support plate, with the pressure plates and the support plate connected to form an inverted U-shaped structure.

[0014] Preferably, in conjunction with the above scheme, the handle assembly includes a nut screwed to a stud, and a handle is fixedly connected to the nut.

[0015] The beneficial effects of this invention are as follows: By combining a stainless steel outer plate and a carbon steel inner plate and processing them into a rust-proof plate stopper, this invention effectively prevents corrosion of the outer surface of the plate stopper after long-term water washing, thus ensuring the printing quality of ink printing. Simultaneously, the fixed welding fixture used in this invention can limit and press the inner and outer plates of the plate stopper together before welding, ensuring excellent positioning accuracy and welding quality.

[0016] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the inner plate of the plate block in this invention.

[0018] 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.

[0019] Figure 3 This is a structural diagram of a rust-proof plate plug according to the present invention.

[0020] 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.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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

[0025] This embodiment provides a processing method for rust-proof plate plugs, the steps of which are as follows: 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 fit the inner diameter of the opening of the printing roller steel pipe 10. 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. 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.

[0026] 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; 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; 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. 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; 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.

[0027] 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.

[0028] 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.

[0029] To ensure the stability of the welded structure, the welded through holes 13 are arranged in a ring array with the first central hole 11 as the center.

[0030] To ensure the stability of the welded structure and make the weld more robust, four sets of welding through holes 13 are provided and arranged in a cross shape with the first central hole 11 as the center.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] To facilitate the installation and fixing of stud 6, such as Figure 7 and Figure 8 As 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.

[0036] 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.

[0037] To facilitate tightening and pressing down the inner plate 1 and outer plate 2 of the plate block via 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.

[0038] 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 7As 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.

[0039] The method of using the fixed welding fixture in this invention: 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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); Finish machining of center holes: finish machining the first center hole (11) and the second center hole (21) to have the same diameter; 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). The fixed welding fixture includes a support plate (3), and a cylindrical limiting ring (4) is fixedly provided on the upper end face 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). 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.

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 (13) are arranged in a ring array with the first central hole (11) as the center.

4. The processing method of the rust-proof plate plug as described in claim 3, characterized in that, The welding through holes (13) 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, The tray (3) is a circular plate, and the limiting ring (4) is coaxial with the tray (3).

7. The processing method for the rust-proof plate plug as described in claim 1, 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).

8. The processing method of the rust-proof plate plug as described in claim 1, 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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