Automatic glue mixing and discharging device suitable for high-viscosity AB glue
By using two sets of screw pumps and extrusion dies in an automatic dispensing machine to extrude the colloid into sheets, and combining the mixing method of a stirring wheel and an extrusion wheel, the problems of low mixing efficiency and easy pipe blockage of high-viscosity colloids are solved, achieving efficient and uniform colloid mixing.
Patent Information
- Application Number
- CN202511271442.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2025-10-28
AI Technical Summary
Existing automatic dispensing machines suffer from low mixing efficiency, easy pipe blockage, and poor mixing uniformity when handling high-viscosity colloids.
Two sets of screw pumps and two sets of extrusion dies are used to extrude A and B into extremely thin sheets, which are then stirred circumferentially by a stirring wheel, mixed a second time by an extrusion wheel, and finally mixed a third time through a static mixing tube to dispense the adhesive.
It improves mixing efficiency, reduces temperature rise in the mixing chamber, significantly reduces pipe blockage, and ensures efficient colloidal mixing.
Smart Images
Figure CN120838653A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automatic AB glue mixing machine technology, and in particular to an automatic mixing and dispensing machine for high-viscosity glue with excellent mixing performance. Background Technology
[0002] An automatic AB glue mixing and dispensing machine is an automated device used for automatic proportioning, mixing, and dispensing of AB glue. This equipment is mainly used for processing AB glues such as epoxy resin AB glue, polyurethane PU glue, and silicone glue. It can be used independently or in conjunction with other automated equipment. The configuration principle of the automatic AB glue mixing and dispensing machine is based on the characteristics of AB glues. It generally consists of A / B glue tanks, a cleaning tank, an A / B metering pump, glue delivery pipes, a mixing and dispensing valve, and other accessories. The mixing and dispensing valve is usually equipped with a stirring motor to agitate the glue entering the mixing chamber. When agitating high-viscosity AB glue, the resistance to the motor is extremely high. To delay the solidification time of the AB glue, the stirring motor speed should not be too fast. Excessive speed will cause the temperature inside the mixing chamber to rise, easily clogging the pipes and resulting in poor mixing uniformity of the AB glue. Summary of the Invention
[0003] The purpose of this invention is to provide an automatic mixing and dispensing device suitable for high-viscosity AB glue. Unlike the traditional direct rotary stirring method, this application adds two sets of screw pumps and two sets of extrusion dies. The two sets of screw pumps extrude A glue and B glue into extremely thin sheets. Since the extrusion direction of the two sets of extrusion dies is pointed to the center line of valve chamber b, the extruded sheet A glue and sheet B glue are brought close to each other and stirred circumferentially by the stirring wheel. Even when the stirring wheel speed is not high, the two glues can still be mixed efficiently. The stirred glue is mixed a second time by the extrusion wheel below and extruded into the glue discharge pipeline. Finally, it is mixed and dispensed a third time by the static mixing tube. The mixing efficiency is extremely high, the temperature in the mixing chamber is not easy to rise, effectively delaying the curing process of the mixed glue and significantly reducing the possibility of pipe blockage.
[0004] To address the technical problems of low mixing efficiency, easy pipe blockage, and poor mixing uniformity in existing automatic glue dispensing machines when handling high-viscosity adhesives, this invention provides an automatic mixing and dispensing device suitable for high-viscosity AB glue, which includes valve block a and valve block b. The valve block a has a valve chamber a, and a colloid discharge pipe is opened at the lower end of the valve chamber a. A static mixing pipe is installed at the lower end of the colloid discharge pipe. The valve block b has a valve cavity b, and the side wall of the valve cavity b has two sets of mold grooves. Each set of mold grooves has a recessed groove at the bottom. The valve block b also has two channels. The inner ends of the two channels are respectively connected to the two recessed grooves, and the outer ends of the two channels are connected to the rear end face of the valve block b. It also includes two sets of screw pumps and two sets of extrusion dies. The two sets of screw pumps are respectively embedded in the two channels and are used to extrude the colloid into the recessed groove. The two sets of extrusion dies are respectively embedded in the two mold grooves and are used to extrude the colloid into a sheet shape and enter the valve cavity b. The two sets of extrusion dies are arranged adjacent to each other, and the extrusion direction of the two sets of extrusion dies is pointing to the center line of the valve cavity b. The valve block a covers the valve block b and is connected by fasteners. The valve chamber a and the valve chamber b are combined to form a mixing chamber. An agitator and an extrusion wheel are installed in the mixing chamber. The agitator and the extrusion wheel are coaxially mounted on a stirring shaft. A stirring motor is installed on the upper end face of the valve block a. The upper end of the stirring shaft is connected to the output shaft of the stirring motor. The height of the agitator is directly opposite the two sets of extrusion dies. The extrusion wheel is installed at the lower end of the stirring shaft and is used to extrude the colloid into the colloid discharge pipeline.
[0005] Furthermore, this application provides an automatic mixing and dispensing device suitable for high-viscosity AB glue, wherein each set of the mold includes two mold blocks and a stop frame. The two mold blocks are tightly fitted and embedded in the mold groove. The end faces of the two mold blocks that are tightly fitted together are respectively provided with chamber a and chamber b. The chamber a and the chamber b are combined to form a sheet-like extrusion cavity. The stop frame covers the outer end faces of the two mold blocks and is connected to the inner wall of the valve cavity b by fasteners.
[0006] Furthermore, this application provides an automatic mixing and dispensing device suitable for high-viscosity AB adhesive, wherein the screw pump includes a pump housing, a screw, a flange sleeve, and a drive motor. The pump housing is fitted into the channel, and a feed port is opened on the outer side wall of the pump housing. The screw is assembled inside the pump housing. The flange sleeve is fitted onto the outer end of the pump housing and connected to the valve block b by fasteners. A liquid inlet channel is opened on the side wall of the flange sleeve, and the liquid inlet channel communicates with the feed port. The outer end of the liquid inlet channel communicates with the adhesive input pipe. The drive motor is installed on the flange sleeve, and the output shaft of the drive motor passes through the flange sleeve and is connected to the rear end of the screw.
[0007] Furthermore, this application provides an automatic mixing and dispensing device suitable for high-viscosity AB glue, wherein the valve block a is further provided with a connecting groove, a coupling is installed in the connecting groove, the output shaft of the stirring motor is connected to the upper end of the coupling, and the upper end of the stirring shaft is connected to the lower end of the coupling.
[0008] Furthermore, this application provides an automatic mixing and dispensing device suitable for high-viscosity AB adhesive, wherein a locking block is provided around the outer periphery of the end face of valve block a, and a locking groove is formed around the outer periphery of the end face of valve block b, and the locking block is fitted into the locking groove to achieve a seal between the end faces of valve block a and valve block b.
[0009] The automatic mixing and dispensing device for high-viscosity AB adhesive provided in this application has the following advantages compared with the prior art: On the one hand, unlike the traditional direct rotary mixing method, this application adds two sets of screw pumps and two sets of extrusion dies. The two sets of screw pumps extrude A and B into extremely thin sheets. Since the extrusion direction of the two sets of extrusion dies is pointed to the center line of valve chamber b, the extruded sheet A and sheet B are stirred circumferentially by the stirring wheel after they come close to each other. Even when the stirring wheel speed is not high, the two colloids can still be mixed efficiently. On the other hand, the stirred colloids are mixed a second time by the extrusion wheel below and extruded into the colloid discharge pipeline. Finally, the colloids are mixed a third time by the static mixing pipe. The mixing efficiency is extremely high, the temperature in the mixing chamber is not easy to rise, effectively delaying the curing process of the mixed colloids and significantly reducing the possibility of pipe blockage. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of an automatic mixing and dispensing device for high-viscosity AB adhesive according to the present invention; Figure 2 This is a schematic diagram of the internal structure of an automatic mixing and dispensing device for high-viscosity AB adhesive according to the present invention. Figure 3 This is an exploded view of the structure of an automatic mixing and dispensing device for high-viscosity AB adhesive according to the present invention; Figure 4 for Figure 3 Top view of the cross section.
[0011] The components are as follows: 1. Valve block a; 2. Valve block b; 3. Valve chamber a; 4. Colloid discharge pipeline; 5. Static mixing pipe; 6. Valve chamber b; 7. Mold groove; 8. Settling tank; 9. Channel; 10. Slot; 11. Engaging block; 12. Agitator wheel; 13. Extrusion wheel; 14. Agitator shaft; 15. Agitator motor; 16. Connecting groove; 17. Coupling; 18. Mold block; 19. Stop frame; 20. Chamber a; 21. Chamber b; 22. Pump casing; 23. Screw; 24. Flange sleeve; 25. Drive motor; 26. Colloid inlet pipe. Detailed Implementation
[0012] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0013] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this application and simplifying the description, and do not indicate or imply that the equipment or component 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 application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0014] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0015] like Figures 1-4 As shown, this embodiment provides an automatic mixing and dispensing device suitable for high-viscosity AB glue, which includes valve block a1 and valve block b2; The valve block a1 has a valve cavity a3, and the lower end of the valve cavity a3 has a colloid discharge pipe 4. The lower end of the colloid discharge pipe 4 is equipped with a static mixing pipe 5. The valve block b2 has a valve cavity b6. The side wall of the valve cavity b6 has two sets of mold grooves 7. Each set of mold grooves 7 has a recessed groove 8 at the bottom. The valve block b2 also has two channels 9. The inner ends of the two channels 9 are respectively connected to the two recessed grooves 8, and the outer ends of the two channels 9 are connected to the rear end face of the valve block b2. It also includes two sets of screw pumps 23 and two sets of extrusion dies. The two sets of screw pumps 23 are respectively embedded in the two channels 9 and are used to extrude the colloid into the recessed groove 8. The two sets of extrusion dies are respectively embedded in the two mold grooves 7 and are used to extrude the colloid into a sheet shape and enter the valve cavity b6. The two sets of extrusion dies are arranged adjacent to each other, and the extrusion direction of the two sets of extrusion dies is pointing to the center line of the valve cavity b6. The valve block a1 covers the valve block b2 and is connected by fasteners. To improve assembly sealing, a groove 10 is provided around the outer periphery of the end face of the valve block a1, and a locking block 11 is provided around the outer periphery of the end face of the valve block b2. The groove 10 is fitted into the locking block 11 to achieve a seal between the end faces of the valve block a1 and the valve block b2. The valve chamber a3 and the valve chamber b6 are combined to form a mixing chamber. An agitator 12 and an extrusion wheel 13 are installed in the mixing chamber. The agitator 12 and the extrusion wheel 13 are coaxial. Mounted on the stirring shaft 14, the upper end face of the valve block a1 is equipped with a stirring motor 15. The valve block a1 also has a connecting groove 16, in which a coupling 17 is installed. The output shaft of the stirring motor 15 is connected to the upper end of the coupling 17, and the upper end of the stirring shaft 14 is connected to the lower end of the coupling 17. The stirring wheel 12 is aligned with the two sets of extrusion dies. The extrusion wheel 13 is installed at the lower end of the stirring shaft 14 and is used to extrude the colloid into the colloid discharge pipe 4. Each set of molds includes two mold blocks 18 and a stop frame 19. The two mold blocks 18 are tightly fitted and embedded in the mold groove 7. The end faces of the two molds that are tightly fitted to each other are respectively opened into chamber a20 and chamber b21. The chamber a20 and chamber b21 are combined to form a sheet-like extrusion cavity. The stop frame 19 covers the outer end faces of the two mold blocks 18 and is connected to the inner wall of the valve cavity b6 by fasteners. The screw pump 23 includes a pump housing 22, a screw 23, a flange sleeve 24, and a drive motor 25. The pump housing 22 is fitted into the channel 9, and a feed inlet is opened on the outer side wall of the pump housing 22. The screw 23 is assembled inside the pump housing 22. The flange sleeve 24 is sleeved on the outer end of the pump housing 22 and connected to the valve block b2 by fasteners. A liquid inlet channel is opened on the side wall of the flange sleeve 24, and the liquid inlet channel is connected to the feed inlet. The outer end of the liquid inlet channel is connected to the colloid input pipe 26. The drive motor 25 is installed on the flange sleeve 24, and the output shaft of the drive motor 25 passes through the flange sleeve 24 and is connected to the rear end of the screw 23.
[0016] The operation and principle of an automatic mixing and dispensing device for high-viscosity AB glue in this embodiment are as follows: Two screw pumps 23 are turned on simultaneously. Glue A and glue B enter the pump housing 22 sequentially through the liquid inlet and feed inlet from the two glue input pipes 26. The drive motor 25 drives the screws 23 to rotate, and the glue is squeezed into the settling tank 8. Then, it is squeezed into the mixing chamber through the sheet extrusion chamber. Since the two sets of extrusion dies are arranged adjacently and the extrusion direction is pointing to the center line of the mixing chamber, the extruded sheet A glue and the extruded sheet B glue approach each other and overlap. At this time, the stacked sheet A glue and sheet B glue are extruded longitudinally, which is perpendicular to the rotation direction of the stirring wheel 12. Under the stirring action of the stirring wheel 12, the already tightly fused AB glue is stirred and mixed again. After being efficiently mixed by the stirring wheel 12, the glue is mixed and stirred again by the extrusion wheel 13 and squeezed out from the lower end of the glue discharge pipe 4. Finally, it arrives at the static mixing pipe 5 for a third stirring and mixing. The mixing effect is excellent.
[0017] Any aspects not detailed in this application are well-known to those skilled in the art.
[0018] The preferred embodiments of this application have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this application without inventive effort. Therefore, any technical solutions that can be obtained by those skilled in the art based on the concept of this application through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. An automatic mixing and dispensing device suitable for high-viscosity AB glue, characterized in that, Includes valve block a and valve block b; The valve block a has a valve chamber a, and a colloid discharge pipe is opened at the lower end of the valve chamber a. A static mixing pipe is installed at the lower end of the colloid discharge pipe. The valve block b has a valve cavity b, and the side wall of the valve cavity b has two sets of mold grooves. Each set of mold grooves has a recessed groove at the bottom. The valve block b also has two channels. The inner ends of the two channels are respectively connected to the two recessed grooves, and the outer ends of the two channels are connected to the rear end face of the valve block b. It also includes two sets of screw pumps and two sets of extrusion dies. The two sets of screw pumps are respectively embedded in the two channels and are used to extrude the colloid into the recessed groove. The two sets of extrusion dies are respectively embedded in the two mold grooves and are used to extrude the colloid into a sheet shape and enter the valve cavity b. The two sets of extrusion dies are arranged adjacent to each other, and the extrusion direction of the two sets of extrusion dies is pointing to the center line of the valve cavity b. The valve block a covers the valve block b and is connected by fasteners. The valve chamber a and the valve chamber b are combined to form a mixing chamber. An agitator and an extrusion wheel are installed in the mixing chamber. The agitator and the extrusion wheel are coaxially mounted on a stirring shaft. A stirring motor is installed on the upper end face of the valve block a. The upper end of the stirring shaft is connected to the output shaft of the stirring motor. The height of the agitator is directly opposite the two sets of extrusion dies. The extrusion wheel is installed at the lower end of the stirring shaft and is used to extrude the colloid into the colloid discharge pipeline.
2. The automatic mixing and dispensing device for high-viscosity AB adhesive according to claim 1, characterized in that, Each set of the mold includes two mold blocks and a stop frame. The two mold blocks are tightly fitted and embedded in the mold groove. The end faces of the two mold blocks that are in close contact with each other are respectively opened into chamber a and chamber b. The chamber a and the chamber b are combined to form a sheet-like extrusion cavity. The stop frame covers the outer end faces of the two mold blocks and is connected to the inner wall of the valve cavity b by fasteners.
3. The automatic mixing and dispensing device for high-viscosity AB adhesive according to claim 1, characterized in that, The screw pump includes a pump housing, a screw, a flange sleeve, and a drive motor. The pump housing is fitted into the channel, and a feed inlet is opened on the outer side wall of the pump housing. The screw is assembled inside the pump housing. The flange sleeve is fitted onto the outer end of the pump housing and connected to the valve block b by fasteners. A liquid inlet channel is opened on the side wall of the flange sleeve, and the liquid inlet channel communicates with the feed inlet. The outer end of the liquid inlet channel communicates with a colloid input pipe. The drive motor is installed on the flange sleeve, and the output shaft of the drive motor passes through the flange sleeve and is connected to the rear end of the screw.
4. The automatic mixing and dispensing device for high-viscosity AB adhesive according to claim 1, characterized in that, The valve block a is also provided with a connecting groove, in which a coupling is installed. The output shaft of the stirring motor is connected to the upper end of the coupling, and the upper end of the stirring shaft is connected to the lower end of the coupling.
5. The automatic mixing and dispensing device for high-viscosity AB adhesive according to claim 1, characterized in that, A locking block is provided around the outer periphery of the end face of valve block a, and a locking groove is provided around the outer periphery of the end face of valve block b. The locking block is fitted into the locking groove to achieve a seal between the end faces of valve block a and valve block b.