An epoxy resin adhesive mixer and its usage method

Abstract

This invention relates to an epoxy resin adhesive mixer and its usage method, comprising a mixing chamber (1), a mixing mechanism (2), and material valves (3); a plurality of material valves (3) are arranged around the outside of the mixing chamber (1) and communicate with the mixing chamber (1), and the bottom of the mixing chamber (1) is connected to the mixing mechanism (2); each material valve (3) includes an inlet (31), a return inlet (32), a nozzle (33), and a lever-type combination valve (34) for driving the nozzle (33) to open and close; the inlet (31), the return inlet (32), and the nozzle (33) are all communicated with the material valve chamber, the nozzle (33) is communicated with the mixing chamber (1), and the lever-type combination valve (34) includes a lever assembly (342) and a ejector pin (341) corresponding to the nozzle (33), wherein the lever assembly (342) and the ejector pin (341) are connected and configured. Compared with the prior art, the present invention can quickly respond to the opening of the material valve (3) by the cooperation of the lever group (342) and the ejector pin (341) under the action of pneumatic force, thereby improving the proportioning accuracy.

Description

Technical Field

[0001] This invention relates to the field of epoxy resin production technology, and in particular to an epoxy resin adhesive mixer and its method of use. Background Technology

[0002] Composite materials are currently widely used in military, aerospace, and industrial fields. Composite material products are also widely used due to their superior properties such as high specific strength, high specific modulus, and lightweight. Currently, most composite material products require epoxy resin adhesives, which are often manually mixed, resulting in low mixing efficiency and susceptibility to human error. Therefore, this technical field urgently needs an epoxy resin adhesive mixer. Summary of the Invention

[0003] The purpose of this invention is to provide an epoxy resin adhesive mixer and its usage method, which can solve the problem of low efficiency in existing manual mixing methods.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] An epoxy resin adhesive mixer includes a mixing chamber, a mixing mechanism, and a feed valve;

[0006] Multiple material valves are arranged around the outside of the mixing chamber and communicate with the mixing chamber. The bottom of the mixing chamber is connected to the mixing mechanism.

[0007] The feed valve includes a feed inlet, a return outlet, a nozzle, and a lever-type combination valve for driving the nozzle to open and close.

[0008] The feed inlet, return outlet, and nozzle are all connected to the material valve cavity. The nozzle is connected to the mixing cavity. The lever-type combination valve includes a lever assembly and a pin corresponding to the nozzle. The lever assembly and the pin are connected and configured.

[0009] Preferably, the material valve includes a front cover and a rear cover. The inlet and outlet are located on the upper part of the front cover. The ejector pin is located inside the front cover. The lever assembly is located inside the rear cover. The front cover is divided into a medium chamber and a pneumatic chamber by a barrier layer. The barrier layer has a port for the ejector pin to pass through. The ejector pin penetrates the barrier layer. The nozzle communicates with the medium chamber through the nozzle port.

[0010] Preferably, four feed valves are provided, enabling the present invention to control the entry of four media into the mixer.

[0011] Preferably, the ejector pin includes a nozzle inner wall ejector pin, an ejector pin shaft, and an ejector pin threaded shaft connected in sequence. The nozzle inner wall ejector pin, the ejector pin shaft, and the ejector pin threaded shaft are an integral shaft. An ejector pin flange is provided between the nozzle inner wall ejector pin and the ejector pin shaft. A first sealing diaphragm and a second sealing diaphragm are provided on the ejector pin threaded shaft.

[0012] More preferably, one end of the ejector pin near the nozzle opening is connected to the nozzle opening in contact with it, and the other end is connected to the lever assembly.

[0013] More preferably, the end of the ejector pin closest to the nozzle and the end furthest from the nozzle are, in sequence, an inner wall ejector pin of the nozzle, an ejector pin shaft, and an ejector pin threaded shaft.

[0014] More preferably, the nozzle inner wall pin is configured to abut against the nozzle orifice.

[0015] More preferably, the first sealing diaphragm and the second sealing diaphragm are threadedly connected and mounted on the threaded shaft of the ejector pin.

[0016] More preferably, the first sealing diaphragm is disposed on the side of the port facing the medium cavity.

[0017] More preferably, the second sealing diaphragm is disposed on the side of the port facing the pneumatic cavity.

[0018] Preferably, the diameter of the ejector pin on the inner wall of the nozzle is larger than the nozzle opening, the thickness of the ejector pin flange is larger than the diameter of the return port and smaller than the diameter of the feed port, the diameter of the first sealing diaphragm is larger than the port diameter, and the diameter of the second sealing diaphragm is larger than the port diameter.

[0019] Further preferably, the thickness of the ejector flange refers to its length along the axial direction of the ejector pin.

[0020] In this invention, the ejector pin is connected to the nozzle orifice in contact. The ejector pin can achieve contact and separation with the nozzle orifice through a lever assembly, thereby driving the opening and closing of the nozzle.

[0021] In this invention, the diameter of the nozzle inner wall pin needs to be larger than the diameter of the nozzle opening. When this invention is in a circulating state, the nozzle inner wall pin can completely block the nozzle opening, preventing the medium from entering the medium chamber through the feed port and being directly ejected from the nozzle opening.

[0022] In this invention, the thickness of the ejector flange is greater than the diameter of the return port and less than the diameter of the inlet port. When this invention is in the discharge state, the ejector flange can completely block the return port, and the medium can be directly sprayed out from the nozzle after entering the medium chamber through the inlet port.

[0023] In this invention, the diameter of the first sealing diaphragm is larger than the port diameter, and the diameter of the second sealing diaphragm is larger than the port diameter. This allows the ejector pin to reciprocate under the drive of the lever assembly to open and close the nozzle while maintaining the sealing of the medium cavity, isolating the medium cavity from the pneumatic cavity, and achieving continuous flow of the medium.

[0024] In this invention, a double sealing diaphragm is used. Both the first and second sealing diaphragms have a sealing function. When the ejector pin moves backward away from the nozzle under the action of the lever assembly, the first sealing diaphragm plays the main sealing role. When the ejector pin moves forward under the action of the lever assembly and blocks the nozzle, the second sealing diaphragm plays the main sealing role.

[0025] Preferably, the lever assembly includes a lever, which is mounted on the rear cover of the material valve via a lever pin, the lever pin passing through the lever, and the lever and the lever pin being rotatably connected.

[0026] In this invention, the lever is fulcrumd with the lever pivot pin.

[0027] Preferably, one end of the lever is connected to a cylinder spring and a cylinder piston, the other end of the lever is connected to a ejector pin and an ejector pin spring, the other end of the cylinder spring is connected to the barrier layer of the front cover of the material valve, and the other end of the ejector pin spring is connected to the rear cover of the material valve.

[0028] More preferably, the lever is connected to the threaded shaft of the ejector pin.

[0029] Preferably, the upper end of the rear cover of the material valve is provided with a pneumatic device capable of driving the piston of the cylinder, the pneumatic device including a cylinder air inlet and a cylinder exhaust port.

[0030] Preferably, the mixing mechanism includes a mixing rotor and a mixing cup, both of which are installed below the mixing chamber. The mixing rotor extends into the mixing cup, and the mixing rotor is provided with multiple stages of blades.

[0031] More preferably, the surface of the mixing rotor is also provided with grooves, which can improve the stirring rate.

[0032] Preferably, the mixing chamber is located below the base, the material valve is slidably connected to the outside of the base, the side of the base is provided with a protruding sliding block, and the side of the material valve that contacts the base is provided with a corresponding sliding groove.

[0033] In this invention, the movement of the ejector pin can be controlled by a pneumatic device in conjunction with a lever assembly, thereby realizing the opening and closing of the nozzle.

[0034] In this invention, when compressed air is received at the cylinder inlet, the cylinder piston is pushed, and the lever assembly drives the ejector pin away from the nozzle opening, thus opening the nozzle and allowing the medium to be discharged. When the cylinder exhaust port opens, the cylinder piston returns under the action of the cylinder spring, and the lever assembly drives the ejector pin back to block the nozzle opening, switching the mixer to the circulation state.

[0035] The present invention also provides a method of using the above-mentioned epoxy resin adhesive mixer, comprising the following steps:

[0036] S1, Discharge state: The lever group drives the ejector pin away from the nozzle and retracts to block the return port through the lever action. At this time, the medium enters the material valve cavity through the feed port, enters the mixing chamber through the nozzle, and finally enters the mixing mechanism for high-speed mixing.

[0037] S2: Circulation state: The lever group drives the ejector pin to hold the nozzle through the lever action. At this time, the medium enters the material valve cavity through the feed port. Subsequently, the medium flows out from the return port through the material valve cavity, forming a circulation of the medium.

[0038] Preferably, the mixer of the present invention can be used to prepare epoxy resin adhesive.

[0039] Preferably, when the epoxy resin adhesive comprises four components, the present invention can precisely control the opening and closing of the material valves according to the pneumatic device, control the four epoxy resin adhesive raw material media to enter the mixing chamber through the four material valves according to the ratio, and achieve mixing under the operation of the mixing mechanism to obtain the epoxy resin adhesive.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) The present invention provides an epoxy resin adhesive mixer, which can quickly respond to the opening of the material valve through the cooperation of the lever group and the ejector pin, thereby improving the mixing accuracy.

[0042] (2) The present invention is equipped with four material valves, which can meet the requirements of four-component formulations, and can accurately control the opening and closing under pneumatic action to control the mixing of raw materials according to the ratio.

[0043] (3) The present invention can switch between discharge state and circulation state by means of the combination of return port, feed port, ejector pin and lever group.

[0044] (4) The mixing rotor of the present invention has multi-stage blades and a groove design on the surface, which can increase the number of stirring times and improve the mixing efficiency. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the mixer assembly of the present invention;

[0046] Figure 2This is an exploded view of the mixer of the present invention;

[0047] Figure 3 This is a schematic diagram of the material valve assembly of the present invention;

[0048] Figure 4 This is a schematic diagram of the explosion of the feed valve of the present invention;

[0049] Figure 5 This is a schematic diagram of the ejector pin structure of the present invention;

[0050] Figure 6 This is a schematic diagram of the lever structure of the present invention;

[0051] Figure 7 This is a schematic diagram of the front cover of the material valve of the present invention;

[0052] Figure 8 This is a schematic diagram of the hybrid mechanism of the present invention;

[0053] Figure 9 This is a schematic diagram of the structure of the present invention in a cyclic state;

[0054] Figure 10 This is a schematic diagram of the structure of the present invention in the discharge state;

[0055] In the diagram: 1-Mixing chamber; 2-Mixing mechanism; 21-Mixing rotor; 22-Mixing cup; 3-Feed valve; 31-Feed inlet; 32-Feed return inlet; 33-Nozzle; 34-Lever-type combination valve; 341-Ejector pin; 3411-Ejector pin on the inner wall of the nozzle; 3412-Ejector pin shaft; 3413-Ejector pin threaded shaft; 3414-Ejector pin flange; 3415-First sealing diaphragm; 3416-Second sealing diaphragm; 342-Lever assembly; 3421-Lever; 3422-Lever pin; 3423-Cylinder spring; 3424-Cylinder piston; 3425-Ejector pin spring; 3421-Lever; 35-Feed valve front cover; 36-Feed valve rear cover; 361-Cylinder air inlet; 362-Cylinder exhaust port; 37-Barrier layer; 38-Port; 4-Base. Detailed Implementation

[0056] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0057] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] 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 can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] Unless otherwise specified, the functional components or structures in the following embodiments or examples are conventional components or structures used in the art to achieve the corresponding functions.

[0060] Example 1

[0061] An epoxy resin adhesive mixer, such as Figure 1 As shown, it includes a mixing chamber 1, multiple material valves 3 arranged around the outside of the mixing chamber 1, and a mixing mechanism 2 arranged below the mixing chamber 1. The mixing chamber 1 and the mixing mechanism 2 are connected.

[0062] The material valve 3 is provided with a feed inlet 31, a return inlet 32, and a nozzle 33. The feed inlet 31, the return inlet 32, and the nozzle 33 are all connected to the cavity of the material valve 3. The material valve 3 is connected to the mixing cavity 1 through the nozzle 33.

[0063] The nozzle 33 is opened and closed by a lever-type combination valve 34 installed in the material valve 3. The lever-type combination valve 34 includes a lever assembly 342 and a ejector pin 341 corresponding to the nozzle 33. The lever assembly 342 and the ejector pin 341 are connected and arranged.

[0064] Example 2

[0065] An epoxy resin adhesive mixer, such as Figures 2-7 As shown, it includes a mixing chamber 1, a mixing mechanism 2, and a material valve 3. The mixing mechanism 2 is located below the mixing chamber 1 and is connected to the mixing chamber 1.

[0066] Multiple feed valves 3 are arranged around the outside of the mixing chamber 1. Each feed valve 3 consists of a front cover 35 and a rear cover 36. The front cover 35 is divided into a media chamber and a pneumatic chamber by a barrier layer 37. The front cover 35 is provided with an inlet 31, a return port 32, and a nozzle 33. The inlet 31 and the return port 32 are both connected to the media chamber. The media chamber is connected to the mixing chamber 1 through the nozzle 33. The nozzle 33 is connected to the media chamber through a nozzle orifice. The nozzle 33 is opened and closed by a lever-type combination valve 34.

[0067] The lever-type combination valve 34 includes a lever assembly 342 and a ejector pin 341 corresponding to the nozzle 33. One end of the ejector pin 341 is in contact with the nozzle orifice, and the other end is connected to the lever assembly 342. The lever assembly 342 is located inside the rear cover 36 of the valve, and the ejector pin 341 is located inside the front cover 35 of the valve. The ejector pin 341 passes through the barrier layer 37, and the barrier layer 37 is provided with a port 38 for the ejector pin 341 to pass through.

[0068] The ejector pin 341 is an integral shaft design, comprising a nozzle inner wall ejector pin 3411, an ejector pin shaft 3412, and an ejector pin threaded shaft 3413 connected in sequence. The nozzle inner wall ejector pin 3411 is in contact with the nozzle orifice, and the ejector pin threaded shaft 3413 is connected to the lever assembly 342. An ejector pin flange 3414 is provided between the nozzle inner wall ejector pin 3411 and the ejector pin shaft 3412. A first sealing diaphragm 3415 and a second sealing diaphragm 3416 are threadedly connected to the ejector pin threaded shaft 3413. The diameter of the nozzle inner wall ejector pin 3411 is larger than the nozzle orifice, the thickness of the ejector pin flange 3414 is larger than the diameter of the return port 32 but smaller than the diameter of the inlet port 31, and the diameters of the first sealing diaphragm 3415 and the second sealing diaphragm 3416 are larger than the diameter of the port 38. The first sealing diaphragm 3415 is located on the side of the port 38 facing the medium chamber, and the second sealing diaphragm 3416 is located on the side of the port 38 facing the pneumatic chamber.

[0069] The lever assembly 342 includes a lever 3421, which is mounted on the rear cover 36 of the material valve via a lever pin 3422. The lever pin 3422 passes through the lever 3421, and the lever 3421 and lever pin 3422 are rotatably connected, with the lever pin 3422 serving as the lever fulcrum. One end of the lever 3421 is connected to a cylinder spring 3423 and a cylinder piston 3424, while the other end is connected to a ejector thread shaft 3413 and an ejector spring 3425. The other end of the cylinder spring 3423 is connected to the barrier layer 37 of the front cover 35 of the material valve, and the other end of the ejector spring 3425 is connected to the rear cover 36 of the material valve.

[0070] The upper end of the material valve rear cover 36 is provided with a cylinder air inlet 361 and a cylinder exhaust port 362. The cylinder air inlet 361 and the cylinder exhaust port 362 drive the cylinder piston 3424 to move by air intake and exhaust.

[0071] The working principle of this embodiment 2 is as follows:

[0072] When this embodiment 2 is in the discharge state, such as Figure 10 As shown, air is introduced into the cylinder inlet 361, the cylinder piston 3424 is pushed, the cylinder spring 3423 is compressed forward at the same time, under the action of the lever, the ejector spring 3425 is compressed backward, which drives the ejector 341 to move backward, the ejector 3411 on the inner wall of the nozzle moves away from the nozzle opening, the ejector flange 3414 blocks the return port 32, the first sealing membrane 3415 seals the port 38, at this time the medium enters the medium chamber through the feed port 31, passes between the ejector 3411 on the inner wall of the nozzle and the ejector flange 3414, enters the mixing chamber 1 through the nozzle 33, and finally enters the mixing mechanism 2 for high-speed mixing;

[0073] When this embodiment 2 is in a cyclic state, such as Figure 9 As shown, the cylinder exhaust port 362 opens, and the cylinder piston 3424 returns to its initial position under the action of the cylinder spring 3423. Under the action of the lever, the ejector spring 3425 returns to its initial position, driving the ejector pin 341 to move forward. The ejector pin 3411 on the inner wall of the nozzle blocks the nozzle opening, and the second sealing diaphragm 3416 seals the port 38. At this time, the medium enters the medium chamber through the feed port 31, passes between the ejector flange 3414 and the first sealing diaphragm 3415, and flows to the return port 32, forming a medium circulation.

[0074] Example 3

[0075] Based on Example 2, such as Figure 8 As shown, the mixing mechanism 2 includes a mixing rotor 21 and a mixing cup 22. Both the mixing rotor 21 and the mixing cup 22 are installed below the mixing chamber 1. The mixing rotor 21 extends into the mixing cup 22. The mixing rotor 21 is provided with multiple stages of blades and several grooves.

[0076] The mixing chamber 1 is located below the base 4, and the material valve 3 is slidably connected to the outside of the base 4. The side of the base 4 is provided with a protruding sliding block, and the side of the material valve 3 that contacts the base 4 is provided with a corresponding sliding groove.

[0077] In this embodiment, the mixing rotor 21 is connected to the stirring motor. When the stirring motor is started, the mixing rotor 21 begins to rotate. The multi-stage blades and grooves on it work together to achieve efficient mixing of the medium in the mixing cup 22.

[0078] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. An epoxy resin adhesive mixer, characterized in that, It includes a mixing chamber (1), a mixing mechanism (2), and a material valve (3); Multiple material valves (3) are arranged around the outside of the mixing chamber (1) and communicate with the mixing chamber (1). The bottom of the mixing chamber (1) is connected to the mixing mechanism (2). The material valve (3) includes a feed inlet (31), a return inlet (32), a nozzle (33), and a lever-type combination valve (34) for driving the nozzle (33) to open and close. The feed inlet (31), return inlet (32), and nozzle (33) are all connected to the material valve cavity. The nozzle (33) is connected to the mixing cavity (1). The lever-type combination valve (34) includes a lever assembly (342) and a pin (341) corresponding to the nozzle (33). The lever assembly (342) and the pin (341) are connected and arranged. The material valve (3) includes a front cover (35) and a rear cover (36). The inlet (31) and outlet (32) are located on the upper end of the front cover (35). The ejector pin (341) is located inside the front cover (35). The lever assembly (342) is located inside the rear cover (36). The front cover (35) is divided into a medium chamber and a pneumatic chamber by a barrier layer (37). The barrier layer (37) is provided with a port (38) for the ejector pin (341) to pass through. The ejector pin (341) penetrates through the barrier layer (37). The nozzle (33) is connected to the medium chamber through the nozzle port. The lever assembly (342) includes a lever (3421), which is mounted on the rear cover (36) of the material valve via a lever pin (3422). The lever pin (3422) passes through the lever (3421), and the lever (3421) is rotatably connected to the lever pin (3422). One end of the lever (3421) is connected to a cylinder spring (3423) and a cylinder piston (3424). The other end of the lever (3421) is connected to a ejector pin (341) and an ejector pin spring (3425). The other end of the cylinder spring (3423) is connected to the barrier layer (37) of the front cover (36) of the material valve. The other end of the ejector pin spring (3425) is connected to the rear cover (36) of the material valve.

2. The epoxy resin adhesive mixer according to claim 1, characterized in that, The ejector pin (341) includes a nozzle inner wall ejector pin (3411), an ejector pin shaft (3412), and an ejector pin threaded shaft (3413) connected in sequence. The nozzle inner wall ejector pin (3411), the ejector pin shaft (3412), and the ejector pin threaded shaft (3413) are an integral shaft. An ejector pin flange (3414) is provided between the nozzle inner wall ejector pin (3411) and the ejector pin shaft (3412). A first sealing diaphragm (3415) and a second sealing diaphragm (3416) are provided on the ejector pin threaded shaft (3413).

3. The epoxy resin adhesive mixer according to claim 2, characterized in that, The diameter of the nozzle inner wall pin (3411) is larger than the nozzle opening, the thickness of the pin flange (3414) is larger than the diameter of the return port (32) and smaller than the diameter of the feed port (31), and the diameters of the first sealing diaphragm (3415) and the second sealing diaphragm (3416) are larger than the diameter of the port (38).

4. The epoxy resin adhesive mixer according to claim 1, characterized in that, The upper end of the material valve rear cover (36) is provided with a pneumatic device that can drive the cylinder piston (3424) to move. The pneumatic device includes a cylinder air inlet (361) and a cylinder exhaust port (362).

5. An epoxy resin adhesive mixer according to claim 1, characterized in that, The mixing mechanism (2) includes a mixing rotor (21) and a mixing cup (22). Both the mixing rotor (21) and the mixing cup (22) are installed below the mixing chamber (1). The mixing rotor (21) extends into the mixing cup (22). The mixing rotor (21) is provided with multiple stages of blades.

6. The epoxy resin adhesive mixer according to claim 1, characterized in that, The mixing chamber (1) is located below the base (4), the material valve (3) is slidably connected to the outside of the base (4), the side of the base (4) is provided with a protruding sliding block, and the side of the material valve (3) that contacts the base (4) is provided with a corresponding sliding groove.

7. A method of using the epoxy resin adhesive mixer as described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1, Discharge state: The lever group (342) drives the ejector pin (341) away from the nozzle (33) and back to block the return port (32) through the lever action. At this time, the medium enters the material valve cavity through the feed port (31), enters the mixing chamber (1) through the nozzle (33), and finally enters the mixing mechanism (2) for high-speed mixing; S2: Circulation state: The lever group (342) drives the ejector pin (341) to press against the nozzle (33) through the lever action. At this time, the medium enters the material valve cavity through the feed port (31). Subsequently, the medium flows out from the return port (32) through the material valve cavity, forming a circulation of the medium.

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