A vacuum hood opening and closing device for a vacuum mixer

Abstract

This invention belongs to the field of vacuum stirring technology, specifically a vacuum cover opening and closing device for a vacuum stirrer. It includes: two balance rods, L-shaped, rotatably mounted on the left and right sides of the vacuum cover. A first balance rod is rotatably connected to the top of the second balance rod via a hinge pin. The upper end of the first balance rod is also rotatably connected to the lower surface of a crossbeam via a hinge pin. The crossbeam is located on the upper side of the vacuum cover. Hinge drive cylinders are also rotatably connected to both sides of the lower surface of the crossbeam via hinge pins. Through the coordinated action of the second and first balance rods, the hinge drive cylinders can push and pull the second and first balance rods, thereby raising or lowering the vacuum cover to separate from or contact the stirring tank, thus realizing the opening and closing operation of the vacuum cover. The combination of the second and first balance rods ensures that the vacuum cover remains stable after it rises, preventing it from falling and providing high safety.

Description

Technical Field

[0001] This invention relates to the field of vacuum stirring technology, specifically to a vacuum cover opening and closing device for a vacuum stirrer. Background Technology

[0002] Vacuum mixers are integrated dispersers and mixers suitable for mixing, reacting, dispersing, dissolving, homogenizing, and emulsifying liquid-liquid and solid-liquid materials in industries such as polymer lithium-ion battery solutions and liquid lithium-ion battery solutions, electronic battery slurries, adhesives, mold glues, carbon ketone sealants, polyurethane sealants, anaerobic adhesives, paints, inks, pigments, cosmetics, pharmaceuticals, pesticides, and building materials.

[0003] Vacuum mixers can be categorized by their application into laboratory vacuum mixers, chemical vacuum mixers, battery liquid vacuum mixers, solder paste dispensing vacuum mixers, and food vacuum mixers.

[0004] Existing vacuum mixers typically use a hydraulic mechanism to directly drive the vacuum cover up and down, thereby opening the vacuum cover. This operation makes the opening of the vacuum cover unstable, lacks a locking function, and is prone to causing the vacuum cover to fall off. Furthermore, the force exerted on the end of the hydraulic mechanism is relatively large, which can easily cause bending, wear, and other damage. Summary of the Invention

[0005] The purpose of this invention is to provide a vacuum cover opening and closing device for a vacuum mixer, in order to solve the problems mentioned in the background art. Existing vacuum mixers typically use a hydraulic mechanism to directly drive the vacuum cover up and down to open it. This operation results in unstable opening of the vacuum cover, lacks a locking function, and is prone to causing the vacuum cover to fall off. Furthermore, the force exerted on the end of the hydraulic mechanism is large, which can easily cause bending, wear, and other problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a vacuum cover opening and closing device for a vacuum mixer, comprising:

[0007] The second balance bar, which is L-shaped, is rotatably set on the left and right sides of the vacuum chamber. The first balance bar is rotatably connected to the top of the second balance bar by a hinge pin. The upper end of the first balance bar is also rotatably connected to the lower surface of the crossbeam by a hinge pin. The crossbeam is located on the upper side of the vacuum chamber.

[0008] The lower surface of the crossbeam is also rotatably connected to hinge drive cylinders on both sides by hinge pins. The extension and retraction ends of the hinge drive cylinders are rotatably connected to the hinge pins between balance bar two and balance bar one.

[0009] Furthermore, a balance hinge seat is provided on both the left and right sides of the vacuum chamber, and the balance hinge seat is connected to the balance rod two through a hinge pin.

[0010] Furthermore, a balance hinge seat is fixedly installed on the lower surface of the crossbeam, and the upper end of the balance rod is connected to the balance hinge seat through a hinge pin thereon.

[0011] Furthermore, vacuum chamber lifting hydraulic cylinder seats are provided on both sides of the lower surface of the crossbeam, and the end of the hinge drive cylinder away from the telescopic end is also rotatably connected to the vacuum chamber lifting hydraulic cylinder seat through a hinge pin.

[0012] Furthermore, a vacuum hood lifting guide sleeve is provided in the middle of the crossbeam, and a vacuum hood lifting guide rod is slidably arranged inside the vacuum hood lifting guide sleeve, with the bottom end of the vacuum hood lifting guide rod connected to the upper surface of the vacuum hood.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1) Through the combined action of balance bar two and balance bar one, the hinge drive cylinder can push and pull balance bar two and balance bar one, thereby raising or lowering the vacuum cover to separate or contact the mixing tank, thus realizing the opening and closing operation of the vacuum cover.

[0015] 2) By combining the second and first balance bars, the vacuum chamber can remain stable after it rises, making it less likely to fall and ensuring high safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention when the vacuum hood descends and contacts the stirring tank;

[0017] Figure 2 This is a schematic diagram of the structure when the vacuum hood of the present invention rises and separates from the stirring tank.

[0018] In the diagram: 2. Base; 11. Column; 23. Crossbeam lifting guide rod; 25. Balance hinge seat (upper); 27. Vacuum hood lifting hydraulic cylinder seat; 29. ​​Crossbeam; 30. Vacuum hood lifting guide rod; 50. Vacuum hood; 52. Balance hinge seat (lower); 53. Vacuum hood lifting guide sleeve; 56. Mixing tank; 82. Balance rod one; 83. Balance rod two; 87. Hinge drive cylinder; 89. Hinge pin. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0021] Example:

[0022] Please see Figure 1-2 The present invention provides a technical solution: a vacuum cover opening and closing device for a vacuum mixer, comprising:

[0023] The second balance bar 83 is rotatably set on the left and right sides of the vacuum chamber 50. The second balance bar 83 is L-shaped. The top of the second balance bar 83 is rotatably connected to the first balance bar 82 through the hinge pin 89. The upper end of the first balance bar 82 is also rotatably connected to the lower surface of the crossbeam 29 through the hinge pin 89. The crossbeam 29 is located on the upper side of the vacuum chamber 50.

[0024] like Figure 1 As shown, balance bar 1 82 and balance bar 2 83 form a connected double linkage mechanism. The other ends of balance bar 1 82 and balance bar 2 83 are respectively connected to hinge drive cylinder 87 and vacuum chamber 50. The extension and retraction end of hinge drive cylinder 87 pushes, causing the angle between balance bar 1 82 and balance bar 2 83 to change, thereby realizing the lifting and pushing operation of vacuum chamber 50, realizing the opening and closing of vacuum chamber 50.

[0025] The lower surface of the crossbeam 29 is also rotatably connected to hinge drive cylinders 87 via hinge pins 89 on both sides. The extension and retraction ends of the hinge drive cylinders 87 are rotatably connected to the hinge pins 89 between the second balance bar 83 and the first balance bar 82.

[0026] The hinge-driven hydraulic cylinder 87 is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear motion. When used to achieve motion, it eliminates the need for a speed reduction device, eliminates transmission backlash, and ensures smooth movement. The output force of the hydraulic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and a venting device.

[0027] like Figure 2As shown, the vacuum hood 50 is located above the mixing tank 56, which is mounted in the middle of the upper surface of the base 2. Columns 11 are installed at both ends of the upper surface of the base 2. A crossbeam lifting guide rod 23 is movably mounted on the upper end of each column 11, and the upper end of the crossbeam lifting guide rod 23 is connected to the lower surface of the crossbeam 29. When the vacuum hood 50 moves up and down, the cooperation between the crossbeam lifting guide rod 23 and the columns 11 ensures that the vacuum hood 50 moves smoothly and does not deviate.

[0028] Preferably, the vacuum hood 50 is provided with a balance hinge seat 52 on both the left and right sides, and the balance hinge seat 52 is connected to the balance rod 83 through a hinge pin 89.

[0029] Preferably, a balance hinge seat 25 is fixedly installed on the lower surface of the crossbeam 29, and the upper end of the balance rod 82 is connected to the balance hinge seat 25 through a hinge pin 89 thereon.

[0030] Preferably, vacuum chamber lifting hydraulic cylinder seats 27 are provided on both sides of the lower surface of the crossbeam 29, and the end of the hinge drive cylinder 87 away from the telescopic end is also rotatably connected to the vacuum chamber lifting hydraulic cylinder seat 27 through the hinge pin 89.

[0031] Preferably, a vacuum hood lifting guide sleeve 53 is provided in the middle of the crossbeam 29, and a vacuum hood lifting guide rod 30 is slidably provided inside the vacuum hood lifting guide sleeve 53, with the bottom end of the vacuum hood lifting guide rod 30 connected to the upper surface of the vacuum hood 50.

[0032] Working principle: such as Figure 1 and Figure 2 As shown, when it is necessary to close the vacuum hood 50 and the mixing tank 56, the hinge drive cylinder 87 retracts. The extension end of the hinge drive cylinder 87 pulls the contact point of the balance bar 1 82 and the balance bar 2 83 outward, making the balance bar 2 83 tend to be vertical. This pushes down the balance hinge seat 52 and the vacuum hood 50, causing the vacuum hood 50 to descend and fit against the mixing tank 56. With the cooperation of the vacuum hood lifting guide rod 30 and the vacuum hood lifting guide sleeve 53, the vacuum hood 50 moves relatively smoothly in the longitudinal direction.

[0033] When it is necessary to separate the vacuum hood 50 from the mixing tank 56, the telescopic end of the hinge drive cylinder 87 extends, causing the balance bar 1 82 and the balance bar 2 83 to come closer together, thereby lifting the vacuum hood 50 and separating it from the mixing tank 56. The crossbeam lifting guide rod 23 can be pushed up along the column 11, increasing the separation space between the vacuum hood 50 and the mixing tank 56.

[0034] like Figure 2As shown, the vacuum hood lifting guide rod 30 is hollow, and a rotating shaft is installed inside the vacuum hood lifting guide rod 30. The stirring drive motor is installed on the crossbeam 29, and the output shaft of the stirring drive motor drives the rotating shaft to rotate. The bottom end of the rotating shaft is located on the lower side of the vacuum hood 50, and a stirring rod is installed at the bottom end of the rotating shaft. The stirring drive motor drives the stirring rod to rotate, thereby realizing the stirring and mixing of materials in the stirring tank 56.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum cover opening and closing device for a vacuum mixer, characterized by, Include: Balance bar two (83) is arranged on both sides of the vacuum cover (50), the balance bar two (83) is L-shaped, the top of the balance bar two (83) is rotatably connected with the balance bar one (82) through the hinge pin (89), the upper end of the balance bar one (82) is also rotatably connected with the lower surface of the cross beam (29) through the hinge pin (89), and the cross beam (29) is located on the upper side of the vacuum cover (50); The lower surface of the cross beam (29) is also rotatably connected with the hinge drive oil cylinder (87) through the hinge pin (89), and the hinge pin (89) between the hinge drive oil cylinder (87), the balance bar two (83) and the balance bar one (82) is rotatably connected; The lower surface of the cross beam (29) is provided with a vacuum cover lifting hydraulic oil cylinder seat (27), and the end of the hinge drive oil cylinder (87) away from the telescopic end is also rotatably connected with the vacuum cover lifting hydraulic oil cylinder seat (27) through the hinge pin (89); The middle part of the cross beam (29) is provided with a vacuum cover lifting guide sleeve (53), the vacuum cover lifting guide sleeve (53) is slidably provided with a vacuum cover lifting guide rod (30), and the bottom end of the vacuum cover lifting guide rod (30) is connected to the upper surface of the vacuum cover (50).

2. The vacuum lid opening and closing device for a vacuum blender according to claim 1, characterized in that: The left and right sides of the vacuum cover (50) are provided with balance hinge seat lower (52), and the balance hinge seat lower (52) is connected with the balance bar two (83) through the hinge pin (89).

3. The vacuum lid opening and closing device for a vacuum blender according to claim 1, characterized in that: The lower surface of the cross beam (29) is fixedly installed with the balance hinge seat upper (25), and the upper end of the balance bar one (82) is connected with the balance hinge seat upper (25) through the hinge pin (89) on it.

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