Static mixing type automatic glue discharging machine for two-component glue

Abstract

The invention discloses a two-component glue static mixing type automatic glue discharging machine, and relates to the technical field of AB glue automatic glue mixing machines, which is different from a traditional rotary stirring mode, a jet mixing mode is used for the first time, two components are compressed by a piston before entering a mixing cavity and are jetted into the mixing cavity through a high-pressure nozzle, and the two components are uniformly mixed. Secondly, according to the scheme, a conveying system is not needed, the two components are automatically attracted to enter the containing cavity in the downward moving process of the piston, colloid in the containing cavity is sprayed out from the high-pressure spray head after being compressed in the upward moving process of the piston, and therefore the mixing effect is good; and meanwhile, the negative pressure effect is achieved in the mixing cavity in the ascending process of the piston, so that the leakage phenomenon of the static glue mixing pipe can be effectively prevented, and the device is particularly suitable for occasions needing quantitative filling of double-component glue.

Description

Technical Field

[0001] This application relates to the field of automatic AB glue mixing machine technology, and in particular to a static automatic glue dispensing machine with excellent mixing performance. Background Technology

[0002] The static mixing automatic dispensing machine for two-component adhesives is an automated device specifically designed for the precise mixing, metering, and dispensing of two-component adhesives. The existing static mixing automatic dispensing machine for two-component adhesives consists of a material tank, a conveying system, a mixing system, and a dispensing control system. The mixing system is responsible for the thorough and uniform mixing of the two components. The degree of mixing directly determines the quality of the subsequent dosing products. The mixing process is generally carried out by a servo motor driving the stirring shaft to rotate and stir. After mixing, the adhesive is extruded from the dispensing nozzle for use. The structure is relatively complex. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic static mixing and dispensing machine for two-component adhesives. Unlike traditional rotary mixing methods, it is the first to use a jet mixing method. Before the two components enter the mixing chamber, they are compressed by a piston and sprayed into the mixing chamber through a high-pressure nozzle. The sprayed two components collide and mix in the form of fine particles, resulting in good mixing effect and fast speed. Secondly, this application solution does not require a conveying system. During the downward movement of the piston, it automatically attracts the two components into the receiving chamber. During the upward movement of the piston, the adhesive in the receiving chamber is compressed and sprayed out from the high-pressure nozzle. At the same time, there is a negative pressure effect in the mixing chamber during the upward movement of the piston, which can effectively prevent the dripping phenomenon of the static mixing tube. It is especially suitable for occasions where quantitative dispensing of two-component adhesives is required.

[0004] To address the technical problems of low mixing efficiency and static mixing tube dripping in existing automatic glue dispensing machines, this invention provides a static mixing automatic glue dispensing machine for two-component adhesives. The machine includes a valve block with a mixing chamber. A dispensing pipe is located at the bottom of the mixing chamber, and a static mixing pipe is installed at the outer end of the dispensing pipe. An A-component receiving chamber and a B-component receiving chamber are respectively located on both sides of the mixing chamber. The lower end of the A-component receiving chamber is connected to the mixing chamber. A piston a is installed inside the A-component receiving chamber and is driven by a cylinder a. The piston rod of the cylinder a extends through the valve block into the A-component receiving chamber, and the end of the piston rod of the cylinder a is connected to the piston a. The A-component receiving chamber is connected to an A-component injection pipe, and the outer end of the A-component injection pipe is connected to... Pipe a connects to the A-grade adhesive storage tank. Pipe a is connected in series with a one-way valve a. Pipe a has several through holes, with a high-pressure one-way valve a installed at the upper end and a high-pressure nozzle a installed at the lower end of each through hole. The lower end of the B-grade adhesive receiving chamber is connected to the mixing chamber. Pipe b is filled in the B-grade adhesive receiving chamber. Pipe b is driven by cylinder b. The piston rod of cylinder b extends through the valve block into the B-grade adhesive receiving chamber. The end of the piston rod of cylinder b is connected to piston b. The B-grade adhesive receiving chamber is connected to the B-grade adhesive injection pipeline. The outer end of the B-grade adhesive injection pipeline is connected to the B-grade adhesive storage tank through pipe b. Pipe b is connected in series with a one-way valve b. Pipe b has several through holes, with a high-pressure one-way valve b installed at the upper end and a high-pressure nozzle b installed at the lower end of each through hole.

[0005] Furthermore, the present invention provides a static mixing automatic dispensing machine for two-component adhesives, wherein the upper end of the mixing chamber extends through the upper end face of the valve block, a sealing cover is provided on the upper end face of the valve block, the sealing cover covers the upper end of the mixing chamber, the sealing cover is connected to the valve block by fasteners, and a sealing gasket is clamped between the sealing cover and the end face of the valve block.

[0006] Furthermore, the present invention provides a static mixing automatic dispensing machine for two-component adhesives, wherein the upper end of the A-component receiving cavity extends through the side of the valve block, a cylinder mounting plate a is provided on the side of the valve block, the cylinder mounting plate a covers the upper end of the A-component receiving cavity, the cylinder mounting plate a is connected to the valve block by fasteners, and a sealing gasket is clamped between the cylinder mounting plate a and the end face of the valve block; two through holes a are opened on the surface of the cylinder mounting plate a, the cylinder a is installed on the outer end face of the cylinder mounting plate a, and the two piston rods of the cylinder a pass through the two through holes a respectively and are connected to the end face of the piston a.

[0007] Furthermore, the present invention provides an automatic dispensing machine for static mixing of two-component adhesives, wherein the upper end of the B-component receiving cavity extends through the side of the valve block, a cylinder mounting plate b is provided on the side of the valve block, the cylinder mounting plate b covers the upper end of the B-component receiving cavity, the cylinder mounting plate b is connected to the valve block by fasteners, and a sealing gasket is clamped between the cylinder mounting plate b and the end face of the valve block; two through holes b are opened on the surface of the cylinder mounting plate b, the cylinder b is installed on the outer end face of the cylinder mounting plate b, and the two piston rods of the cylinder b pass through the two through holes b respectively and are connected to the end face of the piston b.

[0008] The two-component adhesive static mixing automatic dispensing machine provided in this application has the following advantages compared with the prior art: On the one hand, unlike traditional rotary mixing methods, this invention is the first to use jet mixing. Before the two components enter the mixing chamber, they are compressed by a piston and sprayed into the mixing chamber through a high-pressure nozzle. The sprayed two components collide and mix in the form of fine particles, resulting in good mixing effect and fast speed. On the other hand, this invention does not require a conveying system. The piston automatically attracts the two components into the receiving chamber during its downward movement. During the upward movement of the piston, the colloid in the receiving chamber is compressed and sprayed out from the high-pressure nozzle. At the same time, there is a negative pressure effect in the mixing chamber during the upward movement of the piston, which can effectively prevent the occurrence of dripping from the static mixing tube. It is especially suitable for occasions where quantitative dispensing of two-component adhesive is required. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of a static mixing automatic glue dispensing machine for two-component adhesives according to the present invention; Figure 2 This is a schematic diagram of the internal structure of a static mixing automatic glue dispensing machine for two-component adhesives according to the present invention. Figure 3 This is an exploded view of the structure of a static mixing automatic glue dispensing machine for two-component adhesives according to the present invention. Figure 4 for Figure 3 Diagram of the structure with changing angles.

[0010] The components are: 1. Valve block; 2. Mixing chamber; 3. Dispensing pipe; 4. Static mixing pipe; 5. A-grade adhesive receiving chamber; 6. B-grade adhesive receiving chamber; 7. Piston a; 8. Cylinder a; 9. Pipe a; 10. Check valve a; 11. High-pressure check valve a; 12. High-pressure nozzle a; 13. Piston b; 14. Cylinder b; 15. Pipe b; 16. Check valve b; 17. High-pressure check valve b; 18. High-pressure nozzle b; 19. Sealing cap; 20. Cylinder mounting plate a; 21. Cylinder mounting plate b. Detailed Implementation

[0011] 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.

[0012] 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.

[0013] 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.

[0014] like Figures 1-4As shown, this embodiment provides a static mixing automatic glue dispensing machine for two-component adhesives, which includes a valve block 1. The valve block 1 has a mixing chamber 2. A glue dispensing pipe 3 is opened at the bottom of the mixing chamber 2. A static mixing pipe 4 is installed at the outer end of the glue dispensing pipe 3. An A-adhesive receiving chamber 5 and a B-adhesive receiving chamber 6 are respectively opened on both sides of the mixing chamber 2. The lower end of the A-adhesive receiving chamber 5 is connected to the mixing chamber 2. A piston a7 is filled in the A-adhesive receiving chamber 5. The piston a7 is driven by a cylinder a8. The piston rod of the cylinder a8 extends through the valve block 1 into the A-adhesive receiving chamber 5. The end of the piston rod of the cylinder a8 is connected to the piston a7. The A-adhesive receiving chamber 5 is connected to an A-adhesive injection pipe. The outer end of the A-adhesive injection pipe is connected to an A-adhesive storage tank through a pipe a9. A one-way valve is connected in series in the pipe a9. a10, the piston a7 has several through holes, each through hole has a high-pressure one-way valve a11 installed at the upper end and a high-pressure nozzle a12 installed at the lower end; the lower end of the B glue receiving cavity 6 is connected to the mixing cavity 2, the B glue receiving cavity 6 is filled with piston b13, the piston b13 is driven by cylinder b14, the piston rod of the cylinder b14 extends through the valve block 1 into the B glue receiving cavity 6, the end of the piston rod of the cylinder b14 is connected to piston b13, the B glue receiving cavity 6 is connected to the B glue injection pipeline, the outer end of the B glue injection pipeline is connected to the B glue storage tank through pipe b15, the pipe b15 is connected in series with one-way valve b16, the piston b13 has several through holes, each through hole has a high-pressure one-way valve b17 installed at the upper end and a high-pressure nozzle b18 installed at the lower end; Specific results are as follows Figure 2 and Figure 3The upper end of the mixing chamber 2 extends through the upper surface of the valve block 1. A sealing cover 19 is provided on the upper surface of the valve block 1, covering the upper end of the mixing chamber 2. The sealing cover 19 is connected to the valve block 1 by fasteners, and a sealing gasket is clamped between the sealing cover 19 and the end face of the valve block 1. The upper end of the A-adhesive receiving chamber 5 extends through the side of the valve block 1. A cylinder mounting plate a20 is provided on the side of the valve block 1, covering the upper end of the A-adhesive receiving chamber 5. The cylinder mounting plate a20 is connected to the valve block 1 by fasteners, and a sealing gasket is clamped between the cylinder mounting plate a20 and the end face of the valve block 1. Two through holes a are opened on the surface of the cylinder mounting plate a20, and the cylinder a8 is installed on the mixing chamber 2. The outer end face of the cylinder mounting plate a20, the two piston rods of the cylinder a8 respectively pass through the two through holes a and are connected to the end face of the piston a7; the upper end of the B-glue receiving cavity 6 passes through the side of the valve block 1, the cylinder mounting plate b21 is provided on the side of the valve block 1, the cylinder mounting plate b21 covers the upper end of the B-glue receiving cavity 6, the cylinder mounting plate b21 is connected to the valve block 1 by fasteners, and a sealing gasket is clamped between the cylinder mounting plate b21 and the end face of the valve block 1; the surface of the cylinder mounting plate b21 has two through holes b, the cylinder b14 is installed on the outer end face of the cylinder mounting plate b21, and the two piston rods of the cylinder b14 respectively pass through the two through holes b and are connected to the end face of the piston b13.

[0015] The usage process and principle of a static mixing automatic glue dispensing machine for two-component adhesives in this embodiment are as follows: Before opening, piston a7 is located at the upper end of the A-component receiving chamber 5, and piston b13 is located at the upper end of the B-component receiving chamber 6. After high-pressure air is introduced into the first air inlets of cylinders a8 and b14, pistons a7 and b13 move downwards, and the colloids in the A-component storage tank and the B-component storage tank are respectively drawn into the A-component receiving chamber 5 and the B-component receiving chamber 6. After high-pressure air is introduced into the second air inlets of cylinders a8 and b14, pistons a7 and b13 move upwards. The colloid in the A-component receiving chamber 5 is squeezed by piston a7, and the colloid is sprayed into the receiving chamber after passing through the high-pressure one-way valve a11 and the high-pressure nozzle a12. At the same time, the colloid in the B-component receiving chamber 6 is squeezed by piston b13, and the colloid is sprayed into the receiving chamber after passing through the high-pressure one-way valve b17 and the high-pressure nozzle b18, achieving efficient mixing of the two components. Subsequently, pistons a7 and b13... As the mixture reverses and moves downwards, the two components are again drawn into the A-component receiving chamber 5 and the B-component receiving chamber 6, respectively. The pressure in the mixing chamber 2 increases as the pistons a7 and b13 move downwards, and the uniformly mixed colloid is squeezed into the static mixing tube 4, eventually being extruded from the lower end of the static mixing tube 4. When the pistons a7 and b13 move upwards again, on the one hand, a negative pressure appears in the mixing chamber 2, and the colloid in the static mixing tube 4 is drawn back to prevent the colloid from dripping through the lower end of the static mixing tube 4. On the other hand, the piston a7 squeezes the colloid in the A-component receiving chamber 5 again, forcing the A-component to be sprayed into the receiving chamber after passing through the high-pressure one-way valve a11 and the high-pressure nozzle a12, and the B-component to be sprayed into the receiving chamber after passing through the high-pressure one-way valve b17 and the high-pressure nozzle b18. This repetitive process enables precise metering of the two-component filling and efficient anti-drip.

[0016] Any aspects not detailed in this application are well-known to those skilled in the art.

[0017] 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 glue dispensing machine for static mixing of two-component adhesives, characterized in that, The system includes a valve block with a mixing chamber. A dispensing pipe is located at the bottom of the mixing chamber, and a static mixing pipe is installed at the outer end of the dispensing pipe. An A-type receiving chamber and a B-type receiving chamber are located on opposite sides of the mixing chamber. The lower end of the A-type receiving chamber is connected to the mixing chamber. A piston a is installed inside the A-type receiving chamber and is driven by a cylinder a. The piston rod of the cylinder a extends through the valve block into the A-type receiving chamber, and the end of the piston rod of the cylinder a is connected to the piston a. The A-type receiving chamber is connected to an A-type injection pipe, and the outer end of the A-type injection pipe is connected to an A-type storage tank via a pipe a. A one-way valve a is connected in series with the pipe a. The piston a opens... The system has several through holes, each with a high-pressure one-way valve a installed at the upper end and a high-pressure nozzle a installed at the lower end. The lower end of the B-gel receiving cavity is connected to the mixing cavity. The B-gel receiving cavity is filled with a piston b, which is driven by a cylinder b. The piston rod of the cylinder b extends through the valve block into the B-gel receiving cavity. The end of the piston rod of the cylinder b is connected to the piston b. The B-gel receiving cavity is connected to a B-gel injection pipeline. The outer end of the B-gel injection pipeline is connected to a B-gel storage tank through a pipe b. The pipe b is connected in series with a one-way valve b. The piston b has several through holes, each with a high-pressure one-way valve b installed at the upper end and a high-pressure nozzle b installed at the lower end.

2. The two-component adhesive static mixing automatic dispensing machine according to claim 1, characterized in that, The upper end of the mixing chamber extends through the upper end face of the valve block. A sealing cover is provided on the upper end face of the valve block. The sealing cover covers the upper end of the mixing chamber and is connected to the valve block by fasteners. A sealing gasket is clamped between the sealing cover and the end face of the valve block.

3. The two-component adhesive static mixing automatic dispensing machine according to claim 1, characterized in that, The upper end of the A-type adhesive receiving cavity extends through the side of the valve block. A cylinder mounting plate a is provided on the side of the valve block. The cylinder mounting plate a covers the upper end of the A-type adhesive receiving cavity. The cylinder mounting plate a is connected to the valve block by fasteners. A sealing gasket is clamped between the cylinder mounting plate a and the end face of the valve block. Two through holes a are opened on the surface of the cylinder mounting plate a. The cylinder a is installed on the outer end face of the cylinder mounting plate a. The two piston rods of the cylinder a pass through the two through holes a and are connected to the end face of the piston a.

4. The two-component adhesive static mixing automatic dispensing machine according to claim 1, characterized in that, The upper end of the B-type adhesive receiving cavity extends through the side of the valve block. A cylinder mounting plate b is provided on the side of the valve block, and the cylinder mounting plate b covers the upper end of the B-type adhesive receiving cavity. The cylinder mounting plate b is connected to the valve block by fasteners, and a sealing gasket is clamped between the cylinder mounting plate b and the end face of the valve block. Two through holes b are opened on the surface of the cylinder mounting plate b, and the cylinder b is installed on the outer end face of the cylinder mounting plate b. The two piston rods of the cylinder b pass through the two through holes b and are connected to the end face of the piston b.

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