An oil cup cover for protecting the oil cup and facilitating cleaning

Abstract

The present invention discloses an oil cup protective sleeve for protecting an ink cup and facilitating cleaning. The sleeve comprises a protective sleeve that fits within an ink reservoir. An annular disc extends circumferentially and outwardly from the lower opening of the sleeve. The annular disc is bent upward at its edge to form a sleeve portion that fits within the lower opening of the oil cup body and between the inner wall of the scraper and the outer wall of the oil cup body. The annular disc is positioned within the ink scraping cavity to separate a magnet from ink. The protective sleeve and the annular disc are integrally formed. The present invention prevents direct contact between ink and the oil cup body and magnet, has a simple structure, and is easy to disassemble and clean, thereby enhancing the practicality of the oil cup.

Description

Technical field

[0001] The invention relates to an oil cup protective sleeve which is used for protecting the oil cup and is easy to clean. [Background Technology]

[0002] In a traditional ink cup, the ink is in direct contact with the magnet and the main body of the oil cup. Therefore, the magnet and the main body of the oil cup will be corroded by the chemicals in the ink. Long-term use will shorten the life of the oil cup and increase costs. In addition, the inner wall of the oil cup body that comes into contact with the ink will be stained by the ink and is difficult to clean, which will affect the printing quality. On the other hand, handling this stained metal oil cup is relatively complicated, which not only wastes time, but also increases costs and reduces the practicality of the oil cup.

[0003] Therefore, the present invention is proposed just to solve the above-mentioned technical problems. [Summary of the invention]

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide an oil cup cover for protecting the oil cup and being easy to clean. It can prevent the ink from directly contacting the oil cup body and the magnet. It has a simple structure and is easy to disassemble and clean, thereby improving the practicality of the oil cup.

[0005] The present invention is achieved through the following technical solutions:

[0006] An oil cup cover for protecting an oil cup and facilitating cleaning, the oil cup comprises an oil cup body 21 and an oil cup cover 23, an ink storage chamber 22 with upper and lower openings formed on the oil cup body 21, the upper opening of the ink storage chamber 22 being detachably connected to the oil cup cover 23, a plurality of magnets 24 for adsorbing a printed steel plate 26 are arranged circumferentially at the lower opening of the ink storage chamber 22 and located on the bottom surface of the oil cup body 21, a scraper 25 is also sheathed at the lower end of the oil cup body 21 and located on the outer side of the magnet 24, when the oil cup is adsorbed on the printed steel plate 26 through the magnet 24, the blade of the scraper 25 is in close contact with the surface of the printed steel plate 26, and the magnet 24 and the ink cup 22 are in close contact with each other. The printing steel plate 26 is in a non-contact state, and an ink scraping cavity 27 is formed between the bottom surface of the oil cup body 21 and the printing steel plate 26 and the scraper 25. The oil cup sleeve 1 includes a protective sleeve 11 that can be embedded in the ink storage cavity 22. The lower opening of the protective sleeve 11 is circumferentially and outwardly extended to form an annular disc 14. The edge of the annular disc 14 is bent upward to form a sleeve portion 144 that can be sleeved on the lower opening of the oil cup body 21 and located between the inner wall of the scraper 25 and the outer wall of the oil cup body 21. The annular disc 14 is placed in the ink scraping cavity 27 and is used to separate the magnet 24 from the ink. The protective sleeve 11 and the annular disc 14 are integrally formed.

[0007] The protective sleeve 11 is a hollow structure with upper and lower openings. The upper opening of the protective sleeve 11 is further provided with an upper flange 13 extending outward for engaging with the upper opening of the ink storage cavity 22 .

[0008] The protective sleeve 11 has a structure in which the upper end is closed and the lower end is open.

[0009] The annular disc 14 is further formed with an annular groove 141 for accommodating the magnet 24 or a downwardly protruding magnet receiving groove 143 .

[0010] The circumferential edge of the sleeve portion 144 is provided with a supporting portion 142 , which includes a radially arranged transverse ring 1421 and an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25 .

[0011] The circumferential edge of the sleeve portion 144 is provided with a supporting portion 142, which includes a transverse circular ring 1421 arranged radially, an arc portion 1423 protruding upward in the longitudinal section, and an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25.

[0012] The circumferential edge of the sleeve portion 144 is provided with a supporting portion 142, and the supporting portion 142 includes a radially arranged transverse ring 1421, a downwardly protruding first arc portion 1424 and a second arc portion 1425. The outer end of the second arc portion 1425 is formed with an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25.

[0013] The circumferential edge of the sleeve portion 144 is provided with a supporting portion 142, and the supporting portion 142 includes a radially arranged transverse ring 1421, a downwardly protruding first arc portion 1424 and a second arc portion 1425. The outer end of the second arc portion 1425 is formed with an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25. An annular avoidance groove 1411 is formed on the annular groove 141 to further avoid the magnet 24.

[0014] The present invention also discloses a method for using the oil cup sheath:

[0015] A. Install the oil cup cover: Remove the oil cup cover 23 and the scraper 25, and at the same time move the oil cup cover 1 upward along the lower opening of the oil cup body 21. When the upper flange 13 of the oil cup cover 1 moves to the outside of the upper opening of the ink storage chamber 22 and engages with the upper opening, the scraper 25 can be installed back on the oil cup body 21.

[0016] B. Add ink: Place the oil cup on the surface of the printing plate 26, and add ink into the oil cup sleeve 1 through the upper opening of the oil cup sleeve 1. After the ink is added, the oil cup cover 23 can be reinstalled on the oil cup body 21.

[0017] C. Printing: Start the pad printing machine to drive the ink cup to make reciprocating motion on the printing plate 26. The ink in the ink cup fills into the concave pattern on the surface of the printing plate 26 during the motion.

[0018] D. Pad printing: The pad printing head on the pad printing machine picks up the ink filled in the concave pattern and presses it on the surface of the workpiece to complete the pad printing process.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. When the present invention is in use, the protective sleeve of the oil cup cover is moved upward from the lower opening of the ink storage chamber so that the upper edge of the protective sleeve is exposed at the upper opening of the ink storage chamber, and then the oil cup cover is connected to the oil cup body to close the upper opening of the ink storage chamber. At this time, the annular disc of the oil cup cover and the bottom surface of the magnet are in contact with each other; then the scraper is connected to the oil cup body, and the sleeve portion of the edge of the annular disc is sleeved on the outer wall of the lower opening of the oil cup body, effectively preventing the ink from contacting the oil cup body and the magnet, and preventing the oil cup body and the magnet from being corroded; at the same time, the magnet and the annular disc are located on the inner side of the scraper, and an ink scraping cavity is formed between the scraper and the scraper, so that the scraping effect is better during the mobile printing process and the ink is prevented from leaking to the outside of the oil cup; when cleaning is needed, the scraper can be removed and then the oil cup cover can be disassembled for cleaning, which is easy to operate and convenient to clean.

[0021] 2. When it is necessary to add ink, simply unscrew the oil cup cover and add ink from the upper opening of the protective sleeve. This is simple to operate, saves time, and improves printing efficiency. In order to make the oil cup sleeve more firmly connected to the oil cup body and prevent the oil cup sleeve from shaking during the pad printing process, thereby causing ink leakage, an upper flange is provided at the upper opening of the protective sleeve, which is engaged with the upper opening of the ink storage chamber. When in use, the upper flange is engaged between the oil cup cover and the oil cup body, and can also prevent the ink from contacting the upper opening of the ink storage chamber when adding ink.

[0022] 3. The annular disc can prevent the ink from contacting the magnet. At the same time, the groove formed is convenient for avoiding the magnet so that all the magnets are placed in the groove and the bottom surface of the groove is on the same horizontal plane. Even if the bottom surface of the magnet is uneven, there will be no ink leakage. In addition, the groove can not only reduce the manufacturing difficulty and design cost of the oil cup cover, but also can be applied to different models of oil cups with different numbers of magnets, thereby improving its practicality.

Brief Description of the Drawings

[0023] Figure 1 This is one of the three-dimensional diagrams of Example 1 of the present invention;

[0024] Figure 2 This is the second stereogram of Example 1 of the present invention;

[0025] Figure 3 is a cross-sectional view of Example 1 of the present invention;

[0026] Figure 4 is a plan view of the abutting portion in Example 1 of the present invention;

[0027] Figure 5 This is one of the three-dimensional diagrams of Example 2 of the present invention;

[0028] Figure 6 This is the second perspective view of Example 2 of the present invention;

[0029] Figure 7 is a cross-sectional view of Example 2 of the present invention;

[0030] Figure 8 is a plan view of the abutting portion in Example 2 of the present invention;

[0031] Figure 9 This is one of the three-dimensional diagrams of Example 3 of the present invention;

[0032] Figure 10 This is the second stereogram of Example 3 of the present invention;

[0033] Figure 11 is a cross-sectional view of Example 3 of the present invention;

[0034] Figure 12 is a plan view of the abutting portion in Example 3 of the present invention;

[0035] Figure 13 This is one of the three-dimensional diagrams of Example 4 of the present invention;

[0036] Figure 14 This is the second stereogram of Example 4 of the present invention;

[0037] Figure 15 is a cross-sectional view of Example 4 of the present invention;

[0038] Figure 16 is a plan view of the abutting portion in Example 4 of the present invention;

[0039] Figure 17 This is one of the three-dimensional diagrams of Example 5 of the present invention;

[0040] Figure 18 This is the second stereogram of Example 5 of the present invention;

[0041] Figure 19 is a cross-sectional view of Example 5 of the present invention;

[0042] Figure 20 This is the third stereogram of Example 1 of the present invention;

[0043] Figure 21 is a cross-sectional view of Example 6 of the present invention;

[0044] Figure 22 is a plan view of the abutting portion in Example 6 of the present invention;

[0045] Figure 23 It is a cross-sectional view of the oil cup of the present invention;

[0046] Figure 24 2 is a cross-sectional view of the oil cup sleeve installed in the oil cup in embodiment 1 of the present invention. [Specific implementation method]

[0047] The present invention will be further described below in conjunction with the accompanying drawings:

[0048] Example 1:

[0049] like Figure 1-4 and Figure 23-24As shown, an oil cup cover for protecting an oil cup and facilitating cleaning, the oil cup comprises an oil cup body 21 and an oil cup cover 23, an ink storage cavity 22 with upper and lower openings is formed on the oil cup body 21, the upper opening of the ink storage cavity 22 is detachably connected to the oil cup cover 23, a plurality of magnets 24 for adsorbing a printing plate 26 are arranged circumferentially at the lower opening of the ink storage cavity 22 and on the bottom surface of the oil cup body 21, a scraper 25 is also sleeved on the lower end of the oil cup body 21 and on the outer side of the magnet 24, when the oil cup is adsorbed on the printing plate 26 through the magnet 24, the blade of the scraper 25 is tightly in contact with the surface of the printing plate 26, and the magnet 24 and the printing plate 26 are in contact with each other. The steel plate 26 is in a non-contact state, and an ink scraping cavity 27 is formed between the bottom surface of the oil cup body 21 and the printing steel plate 26 and the scraper 25. It is characterized in that: the oil cup sleeve 1 includes a protective sleeve 11 that can be embedded in the ink storage cavity 22, and the lower opening of the protective sleeve 11 is circumferentially and outwardly extended to form an annular disc 14. The edge of the annular disc 14 is bent upward to form a sleeve portion 144 that can be sleeved on the lower opening of the oil cup body 21 and located between the inner wall of the scraper 25 and the outer wall of the oil cup body 21. The annular disc 14 is placed in the ink scraping cavity 27 and is used to separate the magnet 24 from the ink. The protective sleeve 11 and the annular disc 14 are integrally formed. When the present invention is used, the protective sleeve 11 of the oil cup protective sleeve 1 is moved upward from the lower opening of the ink storage chamber 22 so that the upper edge of the protective sleeve 11 is exposed at the upper opening of the ink storage chamber 22. Then the oil cup cover 23 is connected to the oil cup main body 21 to close the upper opening of the ink storage chamber 22. At this time, the annular disc 14 of the oil cup protective sleeve 1 is in contact with the bottom surface of the magnet 24. Then the scraper 25 is connected to the oil cup main body 21, and the sleeve portion 144 of the edge of the annular disc 14 is sleeved on the oil cup. The outer wall of the lower opening of the main body 21 effectively prevents ink from contacting the oil cup main body 21 and the magnet 24, thereby preventing corrosion of the oil cup main body 21 and the magnet 24; at the same time, the magnet 24 and the annular disc 14 are located on the inner side of the scraper 25, and an ink scraping cavity 27 is formed between the scraper 25, so that the scraping effect is better during the mobile printing process, and ink is prevented from leaking to the outside of the oil cup; when cleaning is needed, the scraper 25 can be removed, and then the oil cup sheath 1 can be removed for cleaning, which is easy to operate and easy to clean.

[0050] like Figure 1-4As shown, the protective sleeve 11 is a hollow structure with upper and lower openings. The upper opening of the protective sleeve 11 is further provided with an upper flange 13 extending outward for engaging with the upper opening of the ink storage chamber 22. When ink needs to be added, the oil cup cover 23 is directly unscrewed and ink is added from the upper opening of the protective sleeve 11. This is simple to operate, saves time, and improves printing efficiency. In order to make the connection between the oil cup cover 1 in the oil cup body 21 more firmly and prevent the oil cup cover 1 from shaking during the pad printing process, thereby causing ink leakage, an upper flange 13 is provided at the upper opening of the protective sleeve 11 for engaging with the upper opening of the ink storage chamber 27. When in use, the upper flange 13 is engaged between the oil cup cover 23 and the oil cup body 21, and can also prevent the ink from contacting the upper opening of the ink storage chamber 22 when adding ink.

[0051] like Figure 1 As shown, the annular disc 14 is further formed with an annular groove 141 for accommodating the magnet 24. The annular disc 14 prevents ink from coming into contact with the magnet 24. The groove 141 is also formed to facilitate accommodating the magnet 24, ensuring that all magnets 24 are contained within the groove 141. The bottom surfaces of the grooves 141 are on the same horizontal plane. Even if the bottom surfaces of the magnets 24 are uneven, ink leakage will not occur. Furthermore, the provision of the groove not only reduces the manufacturing difficulty and design cost of the oil cup cover 1, but also allows for adaptability to different models of oil cups with different numbers of magnets 24, thereby enhancing its practicality.

[0052] The oil cup cover 1 is made of silicone or rubber. Made of elastic materials such as silicone or rubber, it is easy to clean and maintain. The elastic cover 1 can be elastically connected to the oil cup, ensuring a tight fit between the cover 1 and the inner wall of the oil cup, preventing ink from contacting the inner wall of the oil cup when adding ink. It also prevents the cover 1 from shaking, thereby ensuring printing accuracy.

[0053] like Figure 20 As shown, the annular disc 14 is provided with a reinforcing rib 15. The connection strength of the annular disc 14 is improved, and the service life of the oil cup sleeve 1 is extended.

[0054] like Figure 24 As shown, the minimum diameter of the protective sleeve 11 is smaller than the diameter of the ink storage cavity 22. This allows the protective sleeve 11 to be embedded in the ink storage cavity 22, and the protective sleeve 11 can partially fit against the inner wall of the ink storage cavity 22, preventing the ink cup cover 1 from shaking during the pad printing process, thereby affecting the printing effect.

[0055] A sealing rubber ring is provided between the oil cup body 21 and the scraper 25. The sealing rubber ring makes the connection between the oil cup body 21 and the scraper 25 more secure, and the scraper 25 will not shake easily during the printing process, thereby avoiding ink leakage and ensuring printing accuracy.

[0056] or as Figure 20As shown, the annular disc 14 is also formed with a downwardly protruding magnet receiving groove 143 for accommodating the magnet 24. When in use, the magnets 24 are respectively placed in the magnet receiving groove 143 for positioning, so that the connection between the oil cup sleeve 1 and the oil cup is more stable and the printing effect is better.

[0057] Example 2:

[0058] The difference between Example 2 and Example 1 is that:

[0059] like Figure 5-8 As shown, the circumferential edge of the sleeve portion 144 is provided with a supporting portion 142, which includes a transverse annular surface 1421 arranged in the radial direction and an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25. An annular supporting portion 142 is provided at the circumferential outer edge of the sleeve portion 144. The supporting surface 1422 on the supporting portion 142 contacts and abuts against the inner wall of the scraper 25, preventing the ink in the ink scraping cavity 27 from contacting the magnet 24. It also prevents the oil cup sleeve 1 from shaking during the printing process, ensuring the printing effect.

[0060] Example 3:

[0061] The difference between Example 3 and Example 1 is that:

[0062] like Figure 9-12 As shown, the circumferential edge of the sleeve portion 144 is provided with a supporting portion 142, which includes a transverse annular surface 1421 arranged in the radial direction, an arc-shaped portion 1423 with an upwardly convex longitudinal section, and an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can be abutted against the inner wall of the scraper 25. The supporting portion 142 is configured to be an arc-shaped with a downward curvature in the longitudinal section. The supporting surface 1422 of the supporting portion 142 contacts and abuts against the inner wall of the scraper 25, making the connection between the two closer, thereby improving the sealing performance of the ink scraping chamber 27 and better preventing the ink from contacting the magnet 24. At the same time, the downwardly curved supporting portion 142 is provided to facilitate the installation of the oil cup cover 1.

[0063] Example 4:

[0064] The difference between Example 4 and Example 1 is that:

[0065] like Figure 13-16As shown, the circumferential edge of the sleeve portion 14414 is provided with a supporting portion 142. The supporting portion 142 includes a transverse annular surface 1421 arranged radially, a first arc-shaped portion 1424 protruding downward, and a second arc-shaped portion 1425. The outer end of the second arc-shaped portion 1425 is formed with an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25. The longitudinal cross-section of the supporting portion 142 is an arc-shaped shape with a downward protrusion in the middle and an upward curved edge. The supporting surface 1422 at the edge contacts and abuts against the inner wall of the scraper 25. Even during the printing process, the supporting portion 142 can still fit tightly against the inner wall of the scraper 25, better preventing the ink from contacting the magnet 24. The supporting portion 142 can also be set to have an upwardly protruding arc-shaped longitudinal cross-section, which can also achieve the above effect.

[0066] Example 5:

[0067] The difference between Example 5 and Example 1 is that:

[0068] like Figure 13-15 As shown, the circumferential edge of the sleeve portion 144 is provided with a supporting portion 142, and the supporting portion 142 includes a transverse annular surface 1421 arranged radially, a first arc-shaped portion 1424 protruding downward, and a second arc-shaped portion 1425. The outer end of the second arc-shaped portion 1425 is formed with an arc-shaped supporting surface 1422 that matches the shape of the inner wall of the scraper 25 and can abut against the inner wall of the scraper 25. An annular avoidance groove 1411 is formed on the annular groove 141 to further avoid the magnet 24. The longitudinal section of the abutment portion 142 is in the shape of an arc with a downward bulge in the middle and an upward curved edge. The abutment surface 1422 at the edge contacts and abuts against the inner wall of the scraper 25. Even during the printing process, the abutment portion 142 can fit tightly against the inner wall of the scraper 25 to better avoid contact between the ink and the magnet 24. The abutment portion 142 can also be set to have an upward bulge in the longitudinal section, which can also achieve the above-mentioned effect. In addition, an annular avoidance groove 1411 is formed on the annular groove 141 to further avoid the magnet 24, so that the magnet 24 is embedded in the annular avoidance groove 1411, and the connection between the oil cup sleeve 1 and the magnet is tighter, which can also prevent the oil cup sleeve 1 from shaking during operation, thereby affecting the printing effect.

[0069] Example 6:

[0070] The difference between Example 6 and Example 1 is that:

[0071] like Figure 21-22 As shown, the edge of the annular disc 14 is bent downward to form a sleeve portion 144 that can abut against the inner wall of the blade edge of the scraper 25. The downwardly bent sleeve portion surface 144 abuts against the inner wall of the blade edge of the scraper 25 to prevent ink from contacting the inner wall of the oil cup.

[0072] Examples 7-12:

[0073] The only difference between Examples 7-12 and Examples 1-6 is that:

[0074] The protective sleeve 11 has a structure in which the upper end is closed and the lower end is open. When ink needs to be added, the present invention flips the oil cup and the oil cup protective sleeve 1, so that the blade 25 faces upward, and ink is added to the oil cup protective sleeve 1. After adding, the printing plate 26 is placed on the blade 25, and then the oil cup and the printing plate 26 are flipped at the same time and placed in a designated position, effectively preventing the ink from contacting the oil cup body 21 and the magnet 24, and preventing corrosion of the oil cup body 21 and the magnet 24. At the same time, the magnet 24 and the annular disc 14 are located inside the scraper 25, and an ink scraping cavity 27 is formed between the magnet 24 and the scraper 25, so that the scraping effect is better during the mobile printing process and ink is prevented from leaking to the outside of the oil cup. When cleaning is required, the oil cup protective sleeve 1 can be removed for cleaning, which is convenient and easy to operate.

[0075] The present invention also discloses a method for using the oil cup sheath:

[0076] A. Install the oil cup cover: Remove the oil cup cover 23 and the scraper 25, and at the same time move the oil cup cover 1 upward along the lower opening of the oil cup body 21. When the upper flange 13 of the oil cup cover 1 moves to the outside of the upper opening of the ink storage chamber 22 and engages with the upper opening, the scraper 25 can be installed back on the oil cup body 21.

[0077] B. Add ink: Place the oil cup on the surface of the printing plate 26, and add ink into the oil cup sleeve 1 through the upper opening of the oil cup sleeve 1. After the ink is added, the oil cup cover 23 can be reinstalled on the oil cup body 21.

[0078] C. Printing: Start the pad printing machine to drive the ink cup to make reciprocating motion on the printing plate 26. The ink in the ink cup fills into the concave pattern on the surface of the printing plate 26 during the motion.

[0079] D. Pad printing: The pad printing head on the pad printing machine picks up the ink filled in the concave pattern and presses it on the surface of the workpiece to complete the pad printing process.

[0080] The ink cup is one of the main consumables in the pad printing machine. Its working process is as follows: the ink cup filled with ink moves back and forth in a straight line on the surface of the printing steel plate. The ink in the ink cup fills the concave pattern on the surface of the printing steel plate during the movement; then the ink filled in the concave pattern is picked up by the pad printing rubber head and imprinted on the surface of the workpiece to complete the pad printing process.

Claims

1. An oil cup cover for protecting an oil cup and facilitating cleaning, the oil cup comprising an oil cup body (21) and an oil cup cover (23), the oil cup body (21) being formed with an ink storage cavity (22) having upper and lower openings, the upper opening of the ink storage cavity (22) being detachably connected to the oil cup cover (23), and a plurality of magnets (24) for adsorbing a printing steel plate (26) being arranged circumferentially at the lower opening of the ink storage cavity (22) and located on the bottom surface of the oil cup body (21). The lower end of the oil cup body (21) and the outer side of the magnet (24) are also provided with a scraper (25) in the circumferential direction. When the oil cup is adsorbed on the printing steel plate (26) through the magnet (24), the blade of the scraper (25) is in close contact with the surface of the printing steel plate (26), and the magnet (24) and the printing steel plate (26) are in a non-contact state. An ink scraping cavity (27) is formed between the bottom surface of the oil cup body (21), the printing steel plate (26) and the scraper (25). The invention is characterized in that: The oil cup protective sleeve (1) is made of silicone and includes a protective sleeve (11) that can be embedded in the ink storage cavity (22). The lower opening of the protective sleeve (11) is formed with an annular disc (14) extending outward along the circumferential direction. The edge of the annular disc (14) is bent upward to form a sleeve portion (144) that can be sleeved on the lower opening of the oil cup body (21) and is located between the inner wall of the scraper (25) and the outer wall of the oil cup body (21). The annular disc (14) is placed in the ink scraping cavity (27) and is used to move the magnet. (24) is separated from the ink, and the protective sleeve (11) and the annular disc (14) are integrally formed; the circumferential edge of the sleeve portion (144) is provided with a supporting portion (142), and the supporting portion (142) includes a transverse circular ring (1421) arranged in a radial direction, a first arc-shaped portion (1424) protruding downward, and a second arc-shaped portion (1425), and the outer end of the second arc-shaped portion (1425) is formed with an arc-shaped supporting surface (1422) that matches the shape of the inner wall of the scraper (25) and can be pressed against the inner wall of the scraper (25).

2. The oil cup cover for protecting the oil cup and facilitating cleaning according to claim 1, characterized in that: The protective sleeve (11) is a hollow structure with upper and lower openings, and the upper opening of the protective sleeve (11) is further provided with an upper flange (13) extending outwards for engaging with the upper opening of the ink storage cavity (22).

3. The oil cup cover for protecting the oil cup and facilitating cleaning according to claim 1, characterized in that: The protective sleeve (11) has a structure in which the upper end is closed and the lower end is open.

4. The oil cup cover for protecting the oil cup and facilitating cleaning according to claim 1, characterized in that: The annular disc (14) is also formed with an annular groove (141) for avoiding the magnet (24) or a downwardly protruding magnet receiving groove (143).

5. The oil cup cover for protecting the oil cup and facilitating cleaning according to claim 4, characterized in that: The circumferential edge of the sleeve portion (144) is provided with a supporting portion (142), and the supporting portion (142) includes a transverse circular ring (1421) arranged in a radial direction, a first arc-shaped portion (1424) protruding downward, and a second arc-shaped portion (1425), wherein the outer end of the second arc-shaped portion (1425) is formed with an arc-shaped supporting surface (1422) that matches the shape of the inner wall of the scraper (25) and can be abutted against the inner wall of the scraper (25), and an annular avoidance groove (1411) is formed on the annular groove (141) for further avoiding the magnet (24).

6. The method for using the oil cup cover according to claim 2, characterized in that: The following steps are involved: A. Install the oil cup cover: Remove the oil cup cover (23) and the scraper (25), and at the same time move the oil cup cover (1) upward along the lower opening of the oil cup body (21). When the upper flange (13) of the oil cup cover (1) moves to the outside of the upper opening of the ink storage chamber (22) and engages with the upper opening, the scraper (25) can be installed back on the oil cup body (21); B. Add ink: Place the oil cup on the surface of the printing plate (26), add ink into the oil cup sleeve (1) through the upper opening of the oil cup sleeve (1), and after the ink is added, the oil cup cover (23) can be reinstalled on the oil cup body (21); C. Printing: Start the pad printing machine to drive the ink cup to make a reciprocating motion on the printing plate (26), and the ink in the oil cup fills the concave pattern on the surface of the printing plate (26) during the motion; D. Pad printing: The pad printing head on the pad printing machine picks up the ink filled in the concave pattern and presses it on the surface of the workpiece to complete the pad printing process.

Images