Liftable shunting ring type printing ink precipitation prevention stirring equipment

Abstract

The utility model discloses liftable shunting ring type printing ink precipitation prevention stirring equipment, which is characterized in that a liftable shunting ring is coaxially arranged on the periphery of a stirring blade, an inclined through hole is formed in the shunting ring, and the shunting ring is driven to axially move through a lead screw servo mechanism. During stirring, the rotating blades enable the ink to radially flow, the bottom contact surface extrudes the ink at the bottom of the tank in the lifting process of the shunt ring to prevent the ink from precipitating, the inclined holes generate directional jet flow to wash the tank wall, and precipitation dead angles are eliminated through double-action cooperation. A heating pipe is additionally arranged to maintain ink viscosity, and a transparent observation opening realizes process monitoring. The problem of uneven dispersion caused by ink precipitation is solved, and the printing quality of the medical packaging composite film is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of ink mixing equipment, specifically to a liftable diversion ring-type ink sedimentation prevention mixing equipment. Background Technology

[0002] In the production process of medical packaging composite films, the uniformity and stability of printing inks are crucial. These inks typically contain a high proportion of solid pigments and functional additives, which are prone to sedimentation and stratification when left to stand or insufficiently stirred, resulting in pigment particles forming a hard sediment layer at the bottom or wall of the container. This not only causes uneven ink composition, color differences, and printing defects, but also clogs the ink delivery pipes, seriously affecting the printing quality and safety performance of medical packaging.

[0003] Currently, the industry commonly uses stirred tanks to maintain ink suspension, mainly relying on the stirring motor to drive the blades to rotate and generate shear force and convection. The flow field generated by traditional stirring blades is mainly radial flow, which easily forms a flow "dead zone" in the central area at the bottom of the tank and the boundary layer near the tank wall. Pigment particles continue to settle and accumulate in this area, forming a hard sediment layer that is difficult to break. It is difficult to effectively disturb and entrain these sediments by relying solely on the rotating flow field. Utility Model Content

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a liftable diversion ring-type anti-ink sedimentation stirring device.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a liftable diverting ring type anti-ink sedimentation stirring device, including a stirring tank, a cover plate, a stirring motor, a stirring shaft, stirring blades, a feed inlet, and a discharge outlet. The stirring tank is a hollow tank with an opening at the top. The cover plate is installed over the opening at the top of the stirring tank, and a discharge outlet is provided at the bottom of the stirring tank. The feed inlet is provided on the cover plate. The stirring motor is mounted on the cover plate, and the stirring shaft is connected to the stirring motor. The stirring blades are fitted onto the stirring shaft. The device also includes a diverting ring axially fitted around the stirring blades. The diverting ring has evenly spaced through holes and symmetrically arranged threaded holes. A lead screw is fitted into each threaded hole, and the length of the lead screw is adapted to the depth of the stirring tank. The lead screw is connected to a servo motor, which is mounted on the cover plate. The stirring motor and the servo motor are electrically connected to a controller. A liftable diverting ring is coaxially arranged around the stirring blades, and an oblique through hole is provided on the diverting ring. The axial movement of the diverting ring is driven by a lead screw servo mechanism. During stirring, the rotating blades generate radial flow, and the flow divider ring, as it rises and falls, presses the ink at the bottom of the tank against its contact surface, preventing ink sedimentation. The oblique holes generate a directional jet that scours the tank wall. These two actions work together to eliminate sedimentation dead zones. This solves the problem of uneven dispersion caused by ink sedimentation and significantly improves the quality of ink stirring.

[0006] The flow divider ring is a T-shaped ring, including an outer ring wall and an inner flange. The bottom of the flange is the bottom contact surface, and a threaded hole is located on the ring wall. The bottom contact surface contacts the bottom of the mixing tank to prevent ink accumulation on the bottom surface. The threaded hole is located on the relatively thin ring wall to ensure that the flow divider ring will not detach from the lead screw after contacting the bottom surface.

[0007] The through hole is an oblique hole.

[0008] The through holes are oblique holes, and the central axes of two adjacent oblique holes are symmetrically arranged. The oblique holes are arranged alternately in opposite directions, which can generate turbulence during the up-and-down movement of the flow divider ring, improve the stirring efficiency, and prevent ink from sticking to the side wall.

[0009] The through-holes have different diameters at the top and bottom. This difference in diameter reduces clogging and enhances the jet flow.

[0010] It also includes a heating element, which is installed on the side wall of the mixing tank and electrically connected to the controller. The heating element can maintain the optimal viscosity of the ink, ensuring that the ink is in a molten state.

[0011] A transparent observation port is provided on the side wall of the mixing tank. The transparent observation port facilitates monitoring of the mixing process.

[0012] A baffle is provided at the bottom of the lead screw. The baffle at the bottom of the lead screw can prevent excessive pressure from damaging the bottom of the tank and can also prevent the flow divider ring from detaching from the lead screw.

[0013] The advantages and beneficial effects of this utility model are as follows: a liftable flow divider ring is coaxially arranged around the stirring blade, and an oblique through hole is opened on the flow divider ring. The flow divider ring is driven to move up and down by a screw servo mechanism. During the lifting and lowering process, the bottom surface of the flow divider ring squeezes the ink at the bottom of the tank to prevent ink sedimentation. The oblique hole generates a directional jet to flush the tank wall. The two actions work together to eliminate sedimentation dead corners. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the mixing equipment of this utility model;

[0015] Figure 2 This is a cross-sectional view of the mixing device of this utility model;

[0016] Figure 3 This is a schematic diagram of the flow divider ring structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the shunt ring of this utility model when it is a T-shaped ring.

[0018] Figure 5 This is a schematic diagram of the structure of the flow divider ring through hole of this utility model when the direction of the through hole is an oblique hole with alternating changes;

[0019] Figure 6 This is a schematic diagram of the different upper and lower diameter holes of the flow divider ring in this utility model.

[0020] In the diagram: 1. Mixing tank; 2. Cover plate; 3. Mixing motor; 4. Mixing shaft; 5. Mixing blades; 6. Feed inlet; 7. Discharge outlet; 8. Diverter ring; 81. Through hole; 82. Threaded hole; 83. Lead screw; 831. Baffle; 84. Servo motor; 85. Ring wall; 86. Flange; 87. Bottom contact surface; 9. Heating tube; 10. Transparent observation port. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] according to Figure 1-3 As shown, this utility model is a liftable diversion ring type anti-ink sedimentation stirring device, including a stirring tank 1, a cover plate 2, a stirring motor 3, a stirring shaft 4, stirring blades 5, a feed inlet 6, and a discharge outlet 7. The stirring tank 1 is a hollow tank with an opening at the top. The cover plate 2 is installed on the opening at the top of the stirring tank 1. The discharge outlet 7 is provided at the bottom of the stirring tank 1. The feed inlet 6 is provided on the cover plate 2. The stirring motor 3 is installed on the cover plate 2. The stirring shaft 4 is connected to the stirring motor 3. The stirring blades 5 are fitted on the stirring shaft 4. It also includes a diversion ring 8 axially fitted around the stirring blades 5. The diversion ring 8 has through holes 81 evenly opened on it. The diversion ring 8 has threaded holes 82 symmetrically arranged on it. A lead screw 83 is sleeved in the threaded hole 82. The length of the lead screw 83 is adapted to the depth of the stirring tank 1. The lead screw 83 is connected to a servo motor 84, which is set on the cover plate 2. The stirring motor 3 and the servo motor 84 are electrically connected to a controller.

[0023] It also includes a heating tube 9, which is disposed on the side wall of the mixing tank 1 and is electrically connected to the controller.

[0024] A transparent observation port 10 is provided on the side wall of the mixing tank 1.

[0025] The specific workflow is as follows:

[0026] Ink is poured into mixing tank 1 through feed port 6, and stirring motor 3 is started. Stirring motor 3 drives stirring shaft 4 to rotate, and stirring shaft 4 drives stirring blade 5 to rotate, thereby stirring ink in mixing tank 1. Then, servo motor 84 is started, and servo motor 84 drives lead screw 83 to rotate. Lead screw 83 cooperates with threaded hole 82 on flow divider ring 8, thereby driving flow divider ring 8 to move up and down along lead screw 83. Flow divider ring 8 has through holes 81 evenly opened on it. During the up and down movement of flow divider ring 8, ink shuttles back and forth on the upper and lower surfaces of flow divider ring 8 through through holes 81, thereby forming turbulence and improving stirring efficiency. The outer diameter of the diverting ring 8 is adapted to the inner wall diameter of the mixing tank 1, and the distance between them is small. When the diverting ring 8 moves up and down, its outer wall can effectively sweep away the ink adhering to the inner wall of the mixing tank 1. Furthermore, when it descends to the bottom, the diverting ring 8 can squeeze out the ink at the bottom of the mixing tank 1. The ink below the diverting ring 8 will be squeezed out from the through hole of the diverting ring 8 or from the inside of the diverting ring 8, thereby preventing ink accumulation at the bottom of the mixing tank 1. After mixing, the ink can be discharged from the outlet 7.

[0027] like Figure 4 As shown, the diverting ring 8 is a T-shaped ring, including an outer ring wall 85 and an inner flange 86. The bottom of the flange 86 is a bottom contact surface 87, and a threaded hole 82 is provided on the ring wall 85. The diverting ring 8 is a T-shaped ring, which ensures that the bottom contact surface 87 contacts the bottom of the mixing tank 1 without requiring the lead screw 83 to contact the bottom of the mixing tank 1. This improves the bottom ink mixing efficiency and prevents excessive descent that could cause the diverting ring 8 to detach from the lead screw 83.

[0028] like Figure 5 As shown, the through hole 81 is an oblique hole. The through hole 81 is an oblique hole, and the central axes of two adjacent oblique holes are symmetrically arranged. The oblique shape of the through hole and the symmetrical arrangement of the central axes of two adjacent oblique holes can generate turbulence during the up-and-down movement of the flow divider ring 8, improving stirring efficiency and preventing ink from adhering to the sidewall.

[0029] like Figure 6 As shown, the upper and lower diameters of the through hole 81 are different. The different upper and lower diameters of the through hole 81 can reduce clogging and enhance the jet flow.

[0030] like Figure 2 As shown, a baffle 831 is provided at the bottom of the lead screw 83. The baffle 831 at the bottom of the lead screw 83 can prevent excessive pressure from damaging the bottom of the tank and can also prevent the flow divider ring 8 from detaching from the lead screw 83.

[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A liftable diversion ring-type anti-ink sedimentation stirring device, comprising a stirring tank (1), a cover plate (2), a stirring motor (3), a stirring shaft (4), stirring blades (5), a feed inlet (6), and a discharge outlet (7), wherein the stirring tank (1) is a hollow tank with an opening at the top, the cover plate (2) is fitted over the opening at the top of the stirring tank (1), the discharge outlet (7) is provided at the bottom of the stirring tank (1), the feed inlet (6) is provided on the cover plate (2), the stirring motor (3) is mounted on the cover plate (2), the stirring shaft (4) is connected to the stirring motor (3), and the stirring blades (5) are fitted on the stirring shaft (4), characterized in that, It also includes a flow divider ring (8) axially fitted around the stirring blade (5). The flow divider ring (8) has through holes (81) evenly distributed on it and threaded holes (82) symmetrically arranged on it. A lead screw (83) is fitted inside the threaded hole (82). The length of the lead screw (83) is adapted to the depth of the stirring tank (1). The lead screw (83) is connected to a servo motor (84). The servo motor (84) is set on the cover plate (2). The stirring motor (3) and the servo motor (84) are electrically connected to the controller.

2. The lifting and diverting ring-type ink sedimentation prevention stirring device according to claim 1, characterized in that, The diversion ring (8) is a T-shaped ring, including an outer ring wall (85) and an inner flange (86). The bottom of the flange (86) is a bottom contact surface (87), and a threaded hole (82) is provided on the ring wall (85).

3. The lifting and diverting ring-type anti-ink sedimentation stirring device according to claim 1, characterized in that, The through hole (81) is an oblique hole.

4. The liftable diversion ring type anti-ink sedimentation stirring device according to claim 2, characterized in that, The through hole (81) is an oblique hole, and the central axes of two adjacent oblique holes are symmetrically arranged.

5. A liftable diversion ring-type anti-ink sedimentation stirring device according to any one of claims 1 to 4, characterized in that, The through hole (81) has different diameters at the top and bottom.

6. The lifting and diverting ring-type anti-ink sedimentation stirring device according to claim 1, characterized in that, It also includes a heating tube (9), which is disposed on the side wall of the mixing tank (1) and is electrically connected to the controller.

7. The lifting and diverting ring-type ink sedimentation prevention stirring device according to claim 1, characterized in that, The mixing tank (1) has a transparent observation port (10) on its side wall.

8. The lifting and diverting ring-type ink sedimentation prevention stirring device according to claim 1, characterized in that, A baffle (831) is provided at the bottom of the lead screw (83).

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