Pad printing machine oil cup with magnet capable of moving in self-adaptive mode

By designing an ink cup for pad printing machines with adaptive magnet movement, the problem of magnets being difficult to adhere after printing plate wear is solved, resulting in higher printing quality and extended equipment life.

CN224130718UActive Publication Date: 2026-04-17HEYUAN BORUI CEMENTED CARBIDE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEYUAN BORUI CEMENTED CARBIDE CO LTD
Filing Date
2025-06-05
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The magnets in the ink cups of existing pad printing machines have difficulty adhering well to the printing plate after the plate wears down, resulting in decreased printing quality and shortened equipment life.

Method used

A magnetically adaptive pad printing ink cup was designed. Through the combination of spherical grooves, spherical blocks, limiting grooves and moving components, the magnet can automatically adjust its angle and position according to the shape of the printing plate to ensure close contact with the printing plate.

Benefits of technology

This effectively avoids gaps between the magnet and the printing plate, improving printing quality and equipment lifespan, and enhancing printing stability and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of pad printing machine accessories, and discloses a pad printing machine oil cup with a magnet capable of adaptively moving, which comprises a cup body, the top end of the cup body is detachably provided with a cup cover, the bottom end of the cup body is provided with an annular groove, a rubber ring is inserted into the annular groove, the inner wall of the rubber ring is fixedly connected with a cutter ring, and the inner wall of the cutter ring is fixedly connected with the magnet. The bottom of the cup body is provided with a magnet, the exterior of the magnet and the bottom of the cup body are jointly provided with a moving mechanism, the moving mechanism comprises a spherical groove, the spherical groove is formed in the inner wall of the side, close to the cutter ring, of the cup body, the spherical groove is internally provided with a spherical block, and the spherical block is internally provided with a moving assembly. According to the utility model, through the arrangement of the spherical groove, the spherical block, the limiting groove and the limiting piece, the inclination angle of the bottom end of the magnet can be automatically changed according to the shape of the printing plate, so that the effect of ensuring that the magnet can be attached to the printing plate is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of pad printing machine accessories, and in particular to a pad printing machine oil cup with an adaptively movable magnet. Background Technology

[0002] The ink container of a pad printing machine is a sealed container used to store and supply ink in a pad printing machine. Its core function is to control ink evaporation and stabilize ink concentration through a closed structure, and to achieve high-precision printing in conjunction with the doctor blade system. It is a key component in modern pad printing technology to improve printing quality, environmental protection and production efficiency.

[0003] The magnet in the ink cup of the pad printing machine precisely fixes the position of the ink cup with strong magnetic attraction, making it fit tightly against the pad printing steel plate. This not only forms a good seal to prevent ink leakage and reduce evaporation waste, but also optimizes the printing pressure by adjusting the attraction force to adapt to different printing needs. This ensures uniform ink transfer, improves printing stability and quality, and protects the doctor blade and printing plate to extend the equipment's lifespan, significantly improving overall printing efficiency.

[0004] Currently, the magnets in the ink cups of existing pad printing machines are mostly fixed. However, in actual use, both the printing plate and the blade ring will wear down during long-term use. After the printing plate wears down, the magnet often cannot adhere well to it. Therefore, a pad printing machine ink cup with adaptive magnet movement is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a pad printing machine ink cup with an adaptively movable magnet, which aims to improve the problem in the prior art where the magnet is difficult to fit well with the printing plate after the printing plate is worn.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a magnetically adaptive pad printing machine ink cup, comprising a cup body, a cup cover detachably installed at the top of the cup body, an annular groove at the bottom of the cup body, a rubber ring inserted into the inside of the annular groove, a blade ring fixedly connected to the inner wall of the rubber ring, and a magnet provided at the bottom of the cup body;

[0007] The magnet has a movable mechanism on its exterior and at the bottom of the cup. The movable mechanism includes a spherical groove, which is formed on the inner wall of the cup near the blade ring. A spherical block is provided inside the spherical groove, and a moving component is provided inside the spherical block.

[0008] As a further description of the above technical solution:

[0009] The moving component includes a slide groove formed on the inner wall of a spherical groove. A sliding piece is slidably connected to the inner wall of the slide groove. A connecting block is fixedly connected to the lower surface of the sliding piece. The bottom end of the connecting block is fixedly connected to the upper surface of a magnet. A connecting piece is fixedly connected to the top end of the sliding piece. The number of connecting pieces is set to two. The top end of another connecting piece is fixedly connected to the inner wall of the slide groove. A rubber ball is placed between the two connecting pieces. The top and bottom ends of the rubber ball are fixedly connected to the ends of the two connecting pieces that are close to each other.

[0010] As a further description of the above technical solution:

[0011] A limiting groove is formed on the inner wall of the cup body outside the spherical groove, and a limiting piece is fixedly connected to the outer wall of the spherical block.

[0012] As a further description of the above technical solution:

[0013] The magnet is cylindrical in shape, and there are multiple magnets arranged in a circular array around the axis of the cup.

[0014] As a further description of the above technical solution:

[0015] The number of the movable mechanisms is the same as the number of magnets, and there is a one-to-one correspondence between the movable mechanisms and the magnets.

[0016] As a further description of the above technical solution:

[0017] The upper outer wall of the spherical block is spherical, the bottom of the spherical block is set as a horizontal plane, and the diameter of the spherical block matches the diameter of the spherical groove.

[0018] As a further description of the above technical solution:

[0019] The limiting groove is annular in shape, and the inner wall of the limiting groove is set as a spherical surface, and the center of the spherical surface of the limiting groove coincides with the center of the spherical groove.

[0020] As a further description of the above technical solution:

[0021] The chute is cylindrical in shape, and the bottom of the chute is provided with annular protrusions to prevent objects inside from falling out.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting up a spherical groove, a spherical block, a limiting groove, and a limiting piece, the bottom end of the magnet can automatically change its tilt angle according to the shape of the printing plate, thereby achieving the effect of ensuring that the magnet can fit with the printing plate.

[0024] 2. In this utility model, by setting up a sliding groove, a sliding piece, a connecting block, a connecting piece, and a rubber ball, and by utilizing the deformable property of the rubber ball, the magnet can be moved up and down within a certain range, thereby ensuring that the magnet fits the printing plate without gaps during use. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the overall structure of this utility model;

[0026] Figure 2 This is a three-dimensional cross-sectional view of the overall structure of this utility model;

[0027] Figure 3 In this utility model Figure 2 Enlarged schematic diagram of the three-dimensional structure of part A in the middle;

[0028] Figure 4 This is a three-dimensional cross-sectional diagram of the overall structure of this utility model.

[0029] Figure 5 In this utility model Figure 4 Enlarged schematic diagram of the three-dimensional structure of part B.

[0030] Legend:

[0031] 1. Bowl body; 2. Bowl lid; 3. Annular groove; 4. Rubber ring; 5. Blade ring; 6. Magnet; 7. Movable mechanism; 71. Spherical groove; 72. Spherical block; 73. Limiting groove; 74. Limiting piece; 75. Moving component; 751. Slide groove; 752. Slide piece; 753. Connecting block; 754. Connecting piece; 755. Rubber ball. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a magnetically adaptive pad printing ink cup, comprising a cup body 1, which is the main body of the ink cup, i.e., the outer shell of the ink cup. A lid 2 is detachably installed on the top of the cup body 1. The connection between the cup body 1 and the lid 2 is a rigid threaded locking method. The outer wall of the cup body 1 is provided with a thread standard of M12×1.5, and the inner wall of the lid 2 is provided with a corresponding thread. It is fixed by rotation. An annular groove 3 is provided at the bottom of the cup body 1. A rubber ring 4 is inserted into the annular groove 3. The rubber ring 4 has deformation capability. When the rubber ring 4 is inserted into the annular groove 3, its outer wall can form a sticky... The deformation of the inner wall of the annular groove 3 is controlled to ensure that the rubber ring 4 is not easily dislodged after being inserted into the annular groove 3. A blade ring 5 is fixedly connected to the inner wall of the rubber ring 4. The blade ring 5 is annular in shape. A magnet 6 is provided at the bottom of the cup body 1. The magnet 6 is located inside the blade ring 5. The magnet 6 is cylindrical in shape and there are multiple magnets 6 arranged in a circular array around the axis of the cup body 1. The magnet 6 is a neodymium iron boron magnet. By setting the type of magnet 6, its stability is ensured, and it can be used in the ink cup of the pad printing machine with strict magnetic requirements, which can ensure stable adsorption between the ink cup and the pad printing steel plate.

[0034] Reference Figures 3-5 A movable mechanism 7 is provided on the outside of magnet 6 and at the bottom of the cup body 1. The number of movable mechanisms 7 is the same as the number of magnets 6, and each movable mechanism 7 corresponds to one magnet 6. The movable mechanism 7 includes a spherical groove 71, the inner wall of which is spherical. The spherical groove 71 is located on the inner wall of the cup body 1 near the blade ring 5. A spherical block 72 is provided inside the spherical groove 71. The outer wall of the spherical block 72 and the inner wall of the spherical groove 71 are both smooth. The upper outer wall of the spherical block 72 is spherical, and the bottom of the spherical block 72 is horizontal. The diameter of the spherical block 72 matches the diameter of the spherical groove 71. The spherical block 72 and the spherical groove 71 are not connected, but because the spherical block 72 and the spherical groove 71 are connected... Due to its shape, the spherical block 72 can rotate within the spherical groove 71 in a spherical shape shared by both. A limiting groove 73 is formed on the inner wall of the cup body 1 outside the spherical groove 71. The limiting groove 73 is annular in shape, and its inner wall is set as a spherical surface. The center of the spherical surface of the limiting groove 73 coincides with the center of the spherical groove 71. A limiting piece 74 is fixedly connected to the outer wall of the spherical block 72. Through the cooperation between the limiting piece 74 and the limiting groove 73, the rotation range of the spherical block 72 is limited. This ensures that when the equipment is not in use, the vibration generated when the operator moves the equipment will not cause the rotation angle to be too large, resulting in the magnet 6 colliding with the bottom of the cup body 1.

[0035] Reference Figure 2 and Figure 3The spherical block 72 has a moving component 75 inside. The moving component 75 includes a slide 751, which is cylindrical in shape. The bottom of the slide 751 has an annular protrusion to prevent objects inside from falling out. The slide 751 is formed on the inner wall of the spherical block 72. A slider 752 is slidably connected to the inner wall of the slide 751. A connecting block 753 is fixedly connected to the lower surface of the slider 752. The connecting block 753 is cylindrical in shape, and its diameter is smaller than the inner diameter of the anti-fall-out protrusion inside the slide 751. The bottom end of the connecting block 753 is fixedly connected to the upper surface of the magnet 6, and the top end of the slider 752... Two connecting pieces 754 are fixedly connected. The top end of the other connecting piece 754 is fixedly connected to the inner wall of the slide groove 751. A rubber ball 755 is provided between the two connecting pieces 754. The outer surface of the connecting piece 754 is covered with a rubber coating. The rubber coating on the outer surface of the connecting piece 754 and the rubber ball 755 are integrally formed. The rubber ball 755 has reversible elastic deformation characteristics, that is, it can deform under force and automatically restore its original shape after the external force is removed. The top and bottom ends of the rubber ball 755 are fixedly connected to the two connecting pieces 754 that are close to each other.

[0036] Working principle: When in use, after the bottom surface of magnet 6 comes into contact with the printing plate, if the bottom surface of magnet 6 is not in a state of being exactly in contact with the upper surface of the printing plate, magnet 6 will move to a state of being in contact with the upper surface of the printing plate under the attraction of magnetic force.

[0037] Meanwhile, as the magnet 6 moves, its outer wall pushes the slide groove 751, causing the spherical block 72 to rotate synchronously with it, thus ensuring that the bottom of the cup body 1 will not have gaps due to the need to reserve space for the rotation of the magnet 6.

[0038] When magnet 6 rotates, it inevitably drives spherical block 72 to rotate synchronously with it. When spherical block 72 rotates, it drives limiting piece 74 to rotate synchronously with it. Since limiting piece 74 is located inside limiting groove 73, the rotation range of spherical block 72 is limited. Therefore, it is ensured that during transportation or use, the edge of magnet 6 will not collide with the bottom of cup 1 due to excessive rotation, thus ensuring the service life of magnet 6.

[0039] Meanwhile, because the rubber ball 755 has the ability to deform, when the magnet 6 contacts the upper surface of the printing plate, if there is a raised area on the upper surface of the printing plate, the magnet 6 can maintain a state of contact with the printing plate by squeezing the rubber ball 755. Similarly, if there is a recessed area on the upper surface of the printing plate, the magnet 6 can maintain a state of contact with the printing plate by stretching the rubber ball 755.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetically adaptive pad printing ink cup, comprising a cup body (1), characterized in that: The top of the cup body (1) is detachably fitted with a lid (2), and the bottom of the cup body (1) is provided with an annular groove (3). A rubber ring (4) is inserted into the annular groove (3), and a blade ring (5) is fixedly connected to the inner wall of the rubber ring (4). A magnet (6) is provided at the bottom of the cup body (1). The magnet (6) and the bottom of the pot body (1) are provided with a movable mechanism (7). The movable mechanism (7) includes a spherical groove (71). The spherical groove (71) is opened on the inner wall of the pot body (1) near the knife ring (5). A spherical block (72) is provided inside the spherical groove (71). A moving component (75) is provided inside the spherical block (72).

2. The self-adaptable movable pad printer oil cup with a magnet according to claim 1, characterized in that: The moving component (75) includes a slide (751) which is formed on the inner wall of the spherical groove (71). A slide piece (752) is slidably connected to the inner wall of the slide (751). A connecting block (753) is fixedly connected to the lower surface of the slide piece (752). The bottom end of the connecting block (753) is fixedly connected to the upper surface of the magnet (6). A connecting piece (754) is fixedly connected to the top end of the slide piece (752). There are two connecting pieces (754). The top end of the other connecting piece (754) is fixedly connected to the inner wall of the slide (751). A rubber ball (755) is arranged between the two connecting pieces (754). The top and bottom ends of the rubber ball (755) are fixedly connected to the ends of the two connecting pieces (754) that are close to each other.

3. The magnetically self-adaptable moving pad printer according to claim 1, wherein: The inner wall of the cup body (1) outside the spherical groove (71) is provided with a limiting groove (73), and the outer wall of the spherical block (72) is fixedly connected with a limiting piece (74).

4. The magnetically self-adaptable moving pad printer according to claim 1, wherein: The magnet (6) is cylindrical in shape, and the number of the magnet (6) is multiple, with the multiple magnets (6) arranged in a circular array around the axis of the cup body (1).

5. The magnetically self-adaptable moving pad printer according to claim 4, wherein: The number of the active mechanisms (7) is the same as the number of magnets (6), and the active mechanisms (7) correspond one-to-one with the magnets (6).

6. The magnetically adaptive pad printing ink cup according to claim 1, characterized in that: The upper outer wall of the spherical block (72) is spherical, the bottom of the spherical block (72) is set as a horizontal plane, and the diameter of the spherical block (72) matches the diameter of the spherical groove (71).

7. The self-adaptable movable pad printer oil cup with a magnet according to claim 3, characterized in that: The limiting groove (73) is annular in shape, and the inner wall of the limiting groove (73) is set as a spherical surface, and the center of the spherical surface of the limiting groove (73) coincides with the center of the spherical groove (71).

8. The magnetically self-adaptable moving pad printer according to claim 2, wherein: The groove (751) is cylindrical in shape, and the bottom of the groove (751) is provided with annular protrusions to prevent objects inside from falling out.