Two-component glue injection device

Abstract

The utility model discloses a two component glue injection device relates to fluid conveying equipment technical field, the utility model discloses through the confluence of metering element through the confluence element, sets up first pressure sensor at the flow channel entrance end of confluence element, and sets up second pressure sensor at flow channel export end, can real -time monitoring injection glue process different component glue water's entrance pressure and export pressure, through the calculation entrance pressure difference and export pressure difference, can accurate judgment different component's delivery state to effectual detection glue water mix in air, glue water agglomerate or flow channel blockage etc. Abnormal situation, improve the reliability and degree of automation of injection glue process through pressure difference monitoring mechanism.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport equipment technology, and in particular to a two-component glue injection device. Background Technology

[0002] In industrial manufacturing sectors such as electronics and automotive, sealants or thermally conductive gels are often used for precise coating, such as for encapsulating electronic controllers (VCU, MCU, BMS) in new energy vehicles. Commonly used sealants may be two-component or multi-component, and these components need to be mixed before use, such as AB adhesive.

[0003] Existing technologies typically involve directly injecting two components into a mixing container using a drive element before use, lacking measurement of the flow rate and pressure of the two components entering the mixing container. When the components have high viscosity, they are prone to clumping and blockage during transport, which can cause changes in the amount of components transported to the mixing container. Alternatively, the introduction of air into the components can also cause changes in the pressure and flow rate of the components, resulting in the proportion of components involved in the mixing deviating from the expected ratio. Summary of the Invention

[0004] This invention aims to solve the technical problems of existing technologies being unable to ensure the accuracy of the mixing ratio of multi-component adhesives and being unable to detect abnormalities in the conveying process. It proposes a two-component adhesive dispensing device to achieve precise control of the component mixing ratio and real-time monitoring of conveying abnormalities, thereby improving the reliability and control accuracy of the two-component adhesive dispensing process.

[0005] To achieve the above objectives, this utility model proposes a two-component glue dispensing device, including a metering element for metering the output glue; a manifold element having at least two flow channels inside its cavity, with the inlet end of each flow channel connected to a metering element, each metering element containing different components, and the outlet ends of each flow channel converging at the outlet end of the manifold element; wherein, a first pressure sensor is provided at the inlet end of the flow channel, and a second pressure sensor is provided at the outlet end of the flow channel, and both the first and second pressure sensors are electrically connected to an electronic control system, which is configured to receive data from the metering element, the first pressure sensor, and the second pressure sensor, and monitor the glue delivery status.

[0006] Preferably, the metering element is a metering screw valve, the inlet end of which is connected to the outlet end of the dispensing container, and the outlet end of which is connected to the inlet end of the flow channel; a first pressure sensor is installed on the connecting pipe between the metering screw valve and the flow channel.

[0007] Preferably, the outlet end of the busbar element is provided with a busbar section, and the outlet end of the flow channel is connected to the busbar section.

[0008] Preferably, the dispensing container is connected to a drive assembly, which includes a drive cylinder; the drive cylinder includes a housing and a piston rod that are connected in a transmission manner, and a piston head is connected to the end of the piston rod. The piston head is located in the inner cavity of the dispensing container; the piston head divides the inner cavity of the dispensing container into a power cavity and a receiving cavity that are independent of each other. The receiving cavity is used to receive glue, and the power cavity is connected to a second power source.

[0009] Preferably, the glue injection container is sealed with a connecting flange, which is sealed to the shell, and the piston rod passes through the connecting flange and is connected to the piston head; the connecting flange is provided with a third air inlet, which is connected to the power chamber, thereby inputting a second power source into the power chamber.

[0010] Preferably, the inner cavity of the housing is divided into two independent parts by the end of the piston rod, one part of which is connected to the first air inlet and the other part is connected to the second air inlet; a power main pipe is provided on the housing by a fixed bracket, and a three-way valve is provided on the power main pipe, with the two outlet ends of the three-way valve connected to the first air inlet and the second air inlet respectively.

[0011] Preferably, a three-way pipe is provided between the three-way valve and the first air inlet, and the three-way pipe is connected to the third air inlet.

[0012] Preferably, a first pressure regulating valve is provided on the main power pipe, a three-way valve is located at the outlet end of the first pressure regulating valve, and a second pressure regulating valve is provided between the three-way pipe and the third air inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by combining the metering elements through the manifold element, a first pressure sensor is set at the inlet end of the flow channel of the manifold element, and a second pressure sensor is set at the outlet end of the flow channel. The combined use of the first and second pressure sensors enables real-time monitoring of the inlet and outlet pressures of different component adhesives during the dispensing process. By comparing the inlet and outlet pressure differences, pressure changes caused by different abnormalities such as blockage and air mixing can be accurately identified. Furthermore, by reading the changes in the flow rate of the metering element, the conveying status of different components can be accurately determined, thereby effectively detecting abnormalities such as air mixing in the adhesive, adhesive clumping, or flow channel blockage. This avoids the influence of air bubbles or clumps in the adhesive on the component mixing ratio, and also enables real-time monitoring of conveying abnormalities, improving the reliability and control accuracy of the two-component dispensing process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the connection relationship of this utility model; Figure 2A schematic diagram of the drive component and the dispensing container; Figure 3 A cross-sectional view of the drive assembly and the dispensing container; Figure 4 for Figure 3 Enlarged view of region A in the middle; Figure 5 This is a schematic diagram of the bus element.

[0016] In the diagram: 1. Drive assembly; 10. Power main pipe; 11. First pressure regulating valve; 12. Fixed bracket; 13. Three-way valve; 131. First outlet pipe; 132. Three-way pipe; 14. Second pressure regulating valve; 141. Second outlet pipe; 15. Cylinder; 151. Housing; 152. Piston rod; 153. First air inlet; 154. Second air inlet; 155. Stroke sensor; 16. Connecting flange; 161. Third air inlet; 17. Quick-release clamp; 2. Glue injection container; 21. Piston head; 22. Power chamber; 23. Receiving chamber; 3. Metering element; 31. First pressure sensor; 4. Manifold element; 41. Second pressure sensor; 42. Manifold; 5. Electronic control system.

[0017] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0019] Implementation 1 In this embodiment, as Figure 1 The illustrated two-component dispensing device includes a dispensing container 2, a metering element 3, and a manifold element 4. The dispensing container 2 is used to contain and extrude adhesive. The metering element 3 is connected to the dispensing container 2 and is used to meter the adhesive output from the dispensing container 2. The manifold element 4 has at least two flow channels in its inner cavity. The inlet end of each flow channel is connected to the metering element 3. Each metering element 3 is connected to the dispensing container 2 containing different components. The outlet ends of each flow channel converge at the outlet end of the manifold element 4. A first pressure sensor 31 is provided at the inlet end of the flow channel, and a second pressure sensor 41 is provided at the outlet end of the flow channel. Both the first pressure sensor 31 and the second pressure sensor 41 are electrically connected to the electronic control system 5.

[0020] In this embodiment, the outlet ends of two metering elements 3 are combined through a manifold element 4. A first pressure sensor 31 is installed at the inlet end of the flow channel of the manifold element 4, and a second pressure sensor 41 is installed at the outlet end of the flow channel. This allows for real-time monitoring of the inlet and outlet pressures of different component adhesives during the dispensing process. By calculating the inlet and outlet pressure differences of the same component, the delivery status of different components can be accurately determined, thereby effectively detecting abnormalities such as air mixing in the adhesive, adhesive clumping, or flow channel blockage. Furthermore, by electrically connecting the first pressure sensor 31 and the second pressure sensor 41 to the electronic control system 5, a pressure difference monitoring mechanism is formed, which improves the reliability and automation of the dispensing process. When the pressure difference value exceeds the set range, the system automatically alarms, thereby effectively detecting abnormalities such as air mixing in the adhesive, adhesive clumping, or flow channel blockage and wear.

[0021] In one specific embodiment, an alarm will be triggered when the difference between the inlet pressure and outlet pressure of the same component exceeds 5%.

[0022] In this embodiment, the metering element 3 is a metering screw valve. The inlet end of the metering screw valve is connected to the outlet end of the dispensing container 2, and the outlet end of the metering screw valve is connected to the inlet end of the flow channel. The first pressure sensor 31 is installed on the connecting pipeline between the metering screw valve and the flow channel.

[0023] In this embodiment, as Figure 5 As shown, the outlet end of the manifold element 4 is provided with a manifold section 42, and the outlet end of the flow channel is connected to the manifold section 42. The components from different dispensing containers 2 are finally mixed in the manifold section 42.

[0024] In this embodiment, the busbar 42 is a tubular structure that can be detachably installed at the outlet end of the busbar element 4.

[0025] In this embodiment, the electronic control system 5 can simultaneously obtain the pressure at the inlet and outlet of the three sets of detection and metering elements for different components, and determine the feeding status of different components based on the inlet pressure difference and outlet pressure difference of different components. For example, when the ratio of two different components A and B is determined, the inlet pressure difference and outlet pressure difference of the two components in the flow channel should be a fixed value. If it exceeds the set range, the system will alarm and provide a prompt.

[0026] Example 2 This embodiment provides an optional solution for the driving component of the dispensing container, based on Embodiment 1.

[0027] In this embodiment, the drive assembly 1 drives the piston rod 152 to move via a first power source, and the power chamber 22 drives the piston head 21 via a second power source. The first and second power sources can be provided by the same power system or by different power systems. Optionally, the first and second power sources can be high-pressure air or liquid, and the moving end can be driven by pneumatic or hydraulic pressure.

[0028] In this embodiment, both the first power source and the second power source are compressed air.

[0029] In this embodiment, as Figures 2-4 As shown, the glue injection container 2 is connected to a drive assembly 1, which includes a drive cylinder 15. The drive cylinder 15 includes a housing 151 and a piston rod 152 that are connected in a transmission manner. The end of the piston rod 152 is connected to a piston head 21, which is located in the inner cavity of the glue injection container 2. The piston head 21 divides the inner cavity of the glue injection container 2 into a power chamber 22 and a receiving chamber 23 that are independent of each other. The receiving chamber 23 is used to receive glue, and the power chamber 22 is connected to a second power source.

[0030] In this embodiment, a connecting flange 16 is sealed on the glue injection container 2. The connecting flange 16 is sealed to the housing 151. The piston rod 152 passes through the connecting flange 16 and is connected to the piston head 21. A third air inlet 161 is provided on the connecting flange 16. The third air inlet 161 is connected to the power chamber 22, thereby inputting a second power source into the power chamber 22.

[0031] Specifically, the dispensing container 2 includes a container body 20, a connecting flange 16 located at the top of the container body 20, and the bottom end of the connecting flange 16 protruding into the inner cavity of the container body 20. The peripheral wall of the protruding portion of the connecting flange 16 is sealed to the inner wall of the container body 20 by a sealing ring. A through hole is provided in the center of the connecting flange 16, and a housing 151 is threadedly connected to the through hole. The end face of the housing 151 is sealed to the top face of the connecting flange 16 by a sealing gasket. The piston rod 152 of the cylinder 15 passes through the through hole and connects to the piston head 21 in the inner cavity of the container body 20. A rubber sleeve is provided on the surface of the piston head 21, which seals the gap between the piston head 21 and the inner wall of the container body 20, thereby allowing the piston head 21 to divide the inner cavity of the container body 20 into an independent power chamber 22 and a receiving chamber 23.

[0032] In this embodiment, as Figure 2 and Figure 4 As shown, the part where the connecting flange 16 and the glue injection container 2 are connected has a connecting flange, and the connecting flange of the connecting flange 16 and the connecting flange of the glue injection container 2 are connected together by a quick-release clamp 17.

[0033] It should be noted that the model of quick-connect clamp 17 can be selected according to the corresponding standard based on the outer diameter of the connecting flange 16 and the glue injection container 2. Furthermore, the clamp used to connect the two annular plates is a commercially available product; its structure, principle, and installation method will not be elaborated here.

[0034] In this embodiment, the inner cavity of the housing 151 is divided into two independent parts by the end of the piston rod 152. One part is connected to the first air inlet 153, and the other part is connected to the second air inlet 154. A power main pipe 10 is provided on the housing 151 by a fixed bracket 12. A three-way valve 13 is provided on the power main pipe 10. The two outlet ends of the three-way valve 13 are connected to the first air inlet 153 and the second air inlet 154, respectively. A three-way pipe 132 is provided between the three-way valve 13 and the first air inlet 153, and the three-way pipe 132 is connected to the third air inlet 161. A first pressure regulating valve 11 is provided on the power main pipe 10. The three-way valve 13 is located at the outlet end of the first pressure regulating valve 11. A second pressure regulating valve 14 is provided between the three-way pipe 132 and the third air inlet 161.

[0035] In this embodiment, the first power source and the second power source are provided through the same power system.

[0036] Specifically, compressed air is regulated by the first pressure regulating valve 11 after passing through the power main pipe 10 to form a first power source, which is then input to the first air inlet 153 or the second air inlet 154; the first power source is regulated by the second pressure regulating valve 14 to form a second power source, which is then input to the power chamber 22.

[0037] In this embodiment, the inlet end of the three-way valve 13 is connected to the outlet end of the power main pipe 10. One outlet end of the three-way valve 13 is connected to the second air inlet 154 via the first outlet pipe 131. The other outlet end of the three-way valve 13 is connected to the inlet of the three-way connector 132. The two outlet ends of the three-way connector 132 are respectively connected to the first air inlet 153 and the inlet end of the second pressure regulating valve 14. The outlet end of the second pressure regulating valve 14 is provided with a second outlet pipe 141, which is connected to the third air inlet 164.

[0038] Specifically, the compressed air input from the power main pipe 10 is regulated by the first pressure regulating valve 11 to form the first power source, which flows to the first air inlet 153, the second air inlet 154 and the second pressure regulating valve 14.

[0039] In this embodiment, both the first pressure regulating valve 11 and the second pressure regulating valve 14 are cylinder pressure regulating valves. Cylinder pressure regulating valves are commercially available products, and their working principle and structure will not be described in detail here.

[0040] In this embodiment, cylinder 15 is specifically a reciprocating cylinder, which is a commercially available product. The cylinder body (housing 151) of the reciprocating cylinder and piston rod 152 are dynamically sealed, so that when piston rod 152 moves, the inner cavity of housing 151 is isolated from the outside, thereby making the inner cavity of power chamber 22 and the inner cavity of housing 151 independent of each other during operation.

[0041] In this embodiment, a first sensor 155 for measuring the stroke of the piston rod 152 is provided on the housing 151; a magnetic ring is provided at the end of the piston rod 152 located in the inner cavity of the housing 151.

[0042] Specifically, the first sensor 155 is a magnetic switch. Magnetic switches are provided at both the top and bottom of the housing 151. In this embodiment, the position of the magnetic ring of the piston rod 152 is detected by the magnetic switch to detect the stroke of the pneumatic assembly 15.

[0043] In this embodiment, the three-way valve 13 is a manual three-way valve with a toggle switch. Different positions of the switch connect the inlet end of the three-way valve 13 to different outlet ends. The first pressure regulating valve 11 can adjust the pressure of the entire system as needed by regulating the air pressure input into the power main pipe 10. The second pressure regulating valve 14 can regulate the pressure input into the power chamber 22.

[0044] When the piston head 21 needs to rise, the switch is flipped upwards, connecting the inlet of the three-way valve 13 to the second air inlet 154, thereby inputting compressed air into the inner cavity of the housing 1 from the lower end, pushing the piston head 21 upwards. When the piston head 21 needs to descend, the switch is flipped downwards, connecting the three-way valve 13 to both the first air inlet 153 and the second pressure regulating valve 14, which inputs the regulated compressed air into the power chamber 22. The air pressure generated by the airflow entering the housing 151 through the first air inlet 153 is transmitted to the piston head 21 through the piston rod 152, and together with the air pressure acting directly on the upper surface of the piston head 21, forms the resultant force that drives the piston head 21 to move downwards, thus achieving dual drive. By using both the first and second power sources to drive the piston head 21 to extrude the glue into the glue injection container 2, the thrust provided is more sufficient, which can effectively solve the problems of insufficient thrust caused by single-pressure push when the flow resistance of high-viscosity glue is large, resulting in interruption of material supply or uneven glue dispensing.

[0045] In this embodiment, the first pressure regulating valve 11, the second pressure regulating valve 14, the magnetic switch, and the metering element 3 are all electrically connected to the electronic control system 5. The electronic control system 5 can adjust the input air pressure through the first pressure regulating valve 11 and the second pressure regulating valve 14 to regulate the glue extrusion speed. The electronic control system 5 can obtain the stroke of the cylinder 15 through the magnetic switch, thereby determining the depth of the piston rod 152 entering the receiving cavity 23, and thus determining the remaining amount of glue components. Furthermore, the electronic control system 5 can also obtain the flow rate of the extruded glue through the metering screw valve.

[0046] In this embodiment, the electronic control system 5 is also equipped with a safety pressure threshold. When the readings of the first pressure sensor 31 and the second pressure sensor 41 exceed the safety threshold, the electronic control system 5 will immediately control the drive assembly 1 to stop working and issue an emergency alarm to prevent equipment damage and ensure operational safety.

[0047] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A two-component dispensing device, characterized in that, include: Measuring element (3), the measuring element (3) is used to measure the output glue; The manifold (4) has at least two flow channels in its inner cavity. The inlet end of each flow channel is connected to the metering element (3). Each metering element (3) contains different components. The outlet ends of each flow channel converge at the outlet end of the manifold (4). The inlet end of the flow channel is provided with a first pressure sensor (31), and the outlet end of the flow channel is provided with a second pressure sensor (41). The metering element (3), the first pressure sensor (31) and the second pressure sensor (41) are all electrically connected to the electronic control system (5). The electronic control system (5) is configured to receive data from the metering element (3), the first pressure sensor (31) and the second pressure sensor (41) and monitor the glue delivery status.

2. The two-component dispensing device as described in claim 1, characterized in that, It also includes a glue injection container (2), the metering element (3) is a metering screw valve, the inlet end of the metering screw valve is connected to the outlet end of the glue injection container (2), and the outlet end of the metering screw valve is connected to the inlet end of the flow channel; The first pressure sensor (31) is installed on the connecting pipe between the metering screw valve and the flow channel.

3. The two-component dispensing device as described in claim 2, characterized in that, The outlet end of the busbar element (4) is provided with a busbar section (42), and the outlet end of the flow channel is connected to the busbar section (42).

4. The two-component dispensing device as described in claim 1, characterized in that, The dispensing container (2) is connected to a drive assembly (1), which includes a drive cylinder (15). The drive cylinder (15) includes a housing (151) and a piston rod (152) connected by transmission. The end of the piston rod (152) is connected to a piston head (21), which is located in the inner cavity of the glue injection container (2). The piston head (21) divides the inner cavity of the glue injection container (2) into a power chamber (22) and a receiving chamber (23) that are independent of each other. The receiving chamber (23) is used to hold glue, and the power chamber (22) is connected to a second power source.

5. A two-component dispensing device as described in claim 4, characterized in that, The glue injection container (2) is sealed with a connecting flange (16), which is sealed to the housing (151). The piston rod (152) passes through the connecting flange (16) and is connected to the piston head (21). The connecting flange (16) is provided with a third air inlet (161), which is connected to the power chamber (22) to input the second power source into the power chamber (22).

6. The two-component dispensing device as described in claim 5, characterized in that, The inner cavity of the housing (151) is divided into two independent parts by the end of the piston rod (152), one part of which is connected to the first air inlet (153) and the other part is connected to the second air inlet (154). A power main pipe (10) is provided on the housing (151) via a fixed bracket (12). A three-way valve (13) is provided on the power main pipe (10). The two outlet ends of the three-way valve (13) are respectively connected to the first air inlet (153) and the second air inlet (154).

7. A two-component dispensing device as described in claim 6, characterized in that, A three-way pipe (132) is provided between the three-way valve (13) and the first air inlet (153), and the three-way pipe (132) is connected to the third air inlet (161).

8. A two-component dispensing device as described in claim 7, characterized in that, A first pressure regulating valve (11) is provided on the power main pipe (10), the three-way valve (13) is located at the outlet end of the first pressure regulating valve (11), and a second pressure regulating valve (14) is provided between the three-way pipe (132) and the third air inlet (161).

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