Glue conveying mechanism for AB glue dispenser

Abstract

The utility model discloses a glue conveying mechanism for an AB glue dispenser. The glue conveying mechanism comprises a base plate and two glue conveying units, the glue conveying unit comprises a glue storage cylinder, a temperature controller, a glue conveying plate and a glue back suction valve; the glue storage cylinder comprises a cylinder body and a glue outlet piston; the two glue conveying plates are adjacently mounted on the top surface of the base plate; a storage cavity is formed in the cylinder body, the cylinder body is installed on the top face of the glue conveying plate, the bottom of the storage cavity communicates with the middle of the glue conveying channel, and the output end of the glue outlet piston extends into the storage cavity from the upper portion; an electric heating sleeve covers the peripheral surface of the cylinder body and is electrically connected with the temperature controller; a glue conveying channel is arranged in the glue conveying plate; one end of the glue conveying channel is used for inputting glue A or glue B and storing the glue A or glue B in the storage cavity; the other end of the glue conveying channel is communicated with an input port of the glue back-suction valve; and the output ports of the two glue back-suction valves are respectively communicated with the input end of the glue mixing pipe so as to output glue A and glue B.

Description

Technical Field

[0001] This utility model relates to the field of dispensing machine equipment technology, and in particular to an adhesive delivery mechanism for an AB adhesive dispensing machine. Background Technology

[0002] The AB glue dispensing machine dispenses a mixture of glue A and glue B through the outlet of the glue mixing tube and applies the mixture to the bonding area of ​​the workpiece.

[0003] Because glue A and glue B have different chemical compositions, their viscosities differ at the same room temperature.

[0004] If the viscosity of glue A or glue B is too high, the fluidity of glue A or glue B will be poor, which will lead to uneven mixing of glue A and glue B in the glue mixing tube. The bonding performance of the mixture applied to the bonding area of ​​the processed parts will also be affected. Utility Model Content

[0005] To address the aforementioned shortcomings, the purpose of this invention is to propose a glue delivery mechanism for an AB glue dispensing machine, in order to solve the problem of uneven glue mixing and reduced bonding performance caused by excessively high viscosity and poor flowability of glue A or glue B.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An adhesive delivery mechanism for an AB glue dispensing machine includes a base plate and two adhesive delivery units;

[0008] The base plate is mounted on the AB glue dispensing machine; the glue delivery unit includes a glue storage cylinder, a temperature controller, a glue delivery plate, and a glue back suction valve; the glue storage cylinder includes a cylinder body and a glue dispensing piston;

[0009] Two glue delivery plates are mounted adjacently on the top surface of the base plate; the temperature controller is mounted above the glue delivery plates; the cylinder is mounted on the top surface of the glue delivery plates, and the cylinder has a receiving cavity. The bottom of the receiving cavity is connected to the middle of the glue delivery channel. The glue dispensing piston is mounted above the cylinder, and the output end of the glue dispensing piston extends into the receiving cavity from above. The outer periphery of the cylinder is covered with an electric heating sleeve, and the electric heating sleeve is electrically connected to the temperature controller.

[0010] The glue conveying plate is provided with a glue conveying channel; one end of the glue conveying channel is used to connect with the glue supply device to input glue A or glue B, and the receiving cavity is used to store glue A or glue B; the other end of the glue conveying channel is connected to the input port of the glue back suction valve; the output ports of the two glue back suction valves are respectively connected to the input end of the glue mixing tube to output glue A and glue B.

[0011] Furthermore, the glue delivery unit also includes a pressure regulator;

[0012] The air pressure regulator is mounted above the glue delivery plate; the glue dispensing piston is driven by a power air source, and the air pressure regulator is used to control the output air pressure of the power air source.

[0013] Furthermore, the glue delivery unit also includes a gear pump;

[0014] The gear pump is installed on the top surface of the glue delivery plate;

[0015] The gear pump has adjacent and interconnected suction chamber and discharge chamber; both the suction chamber and the discharge chamber are equipped with gears, and the two gears mesh with each other. The inlet of the suction chamber is connected to the other end of the glue delivery channel, and the outlet of the discharge chamber is connected to the inlet of the glue back suction valve.

[0016] Furthermore, the glue delivery unit also includes a high-pressure air valve;

[0017] The high-pressure air valve is installed near the end of the glue delivery plate that is away from the glue back suction valve.

[0018] The output end of the high-pressure air valve is connected to one end of the glue delivery channel, and the input end of the high-pressure air valve is used to connect to the glue supply device to input glue A or glue B.

[0019] Furthermore, the glue delivery unit also includes a solenoid valve;

[0020] The solenoid valve is located near the corresponding glue storage cylinder, and the solenoid valve is used to control the on / off of the power air source delivery pipeline.

[0021] Furthermore, the glue storage cylinder also includes a cover, a sensor, and a trigger rod;

[0022] The dispensing piston includes an upper piston rod and a lower piston rod;

[0023] The cover is vertically installed above the cylinder; the lower end of the lower piston rod extends downward and into the receiving cavity, the upper end of the lower piston rod is connected to the lower end of the upper piston rod, and the upper end of the upper piston rod extends upward and into the cover;

[0024] The sensor is mounted on the top surface of the upper piston rod; the trigger rod is mounted on the side of the upper piston rod and close to the upper end of the upper piston rod, the upper end of the trigger rod is connected to the sensor, and the lower end of the trigger rod is a free end;

[0025] The sensors are respectively connected to the gear pump, the solenoid valve, and the high-pressure air valve.

[0026] Furthermore, the glue storage cylinder also includes an indicator plate, the cover is made of transparent material, and the circumference of the cover is provided with scale lines;

[0027] The indicator plate is mounted between the sensor and the top surface of the upper piston rod.

[0028] Furthermore, the indicator sheet is red or orange-yellow.

[0029] The beneficial effects of the technical solution of this utility model are as follows: the glue conveying mechanism for the AB glue dispensing machine has an electric heating jacket covering the outer periphery of the cylinder. The heating temperature of the electric heating jacket can be controlled by a temperature controller, so that glue A and glue B located in the two receiving cavities have more suitable temperature and viscosity, thereby making glue A and glue B have more moderate fluidity, which can improve the mixing uniformity of glue A and glue B in the glue mixing tube, and thus improve the bonding performance of the dispensed AB glue. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of one embodiment of the glue delivery mechanism for an AB glue dispensing machine according to the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the glue delivery unit in the diagram;

[0032] Figure 3 for Figure 2 Enlarged view of part A;

[0033] The components include: base plate 1; glue delivery unit 2; glue mixing pipe 3; glue storage cylinder 21; temperature controller 22; air pressure regulator 23; glue back suction valve 24; high pressure air valve 25; gear pump 26; solenoid valve 27; glue delivery plate 28; cylinder body 211; glue dispensing piston 212; indicator plate 213; cover 214; sensor 215; trigger rod 216; glue delivery channel 280; storage cavity 2110; electric heating sleeve 2111; upper piston rod 2121; lower piston rod 2122. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-3The technical solution of this utility model will be further illustrated through specific implementation methods.

[0035] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" 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; they can also refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] An adhesive delivery mechanism for an AB glue dispensing machine includes a base plate 1 and two adhesive delivery units 2;

[0038] The base plate 1 is mounted on the AB glue dispensing machine; the glue delivery unit 2 includes a glue storage cylinder 21, a temperature controller 22, a glue delivery plate 28, and a glue back suction valve 24; the glue storage cylinder 21 includes a cylinder body 211 and a glue dispensing piston 212;

[0039] Two glue delivery plates 28 are mounted adjacently on the top surface of the base plate 1; the temperature controller 22 is mounted above the glue delivery plates 28; the cylinder 211 is mounted on the top surface of the glue delivery plates 28, and the cylinder 211 has a receiving cavity 2110 inside, the bottom of the receiving cavity 2110 being connected to the middle of the glue delivery channel 280; the glue dispensing piston 212 is mounted above the cylinder 211, and the output end of the glue dispensing piston 212 extends into the receiving cavity 2110 from above; the outer periphery of the cylinder 211 is covered with an electric heating sleeve 2111, and the electric heating sleeve 2111 is electrically connected to the temperature controller 22;

[0040] The glue conveying plate 28 is provided with a glue conveying channel 280; one end of the glue conveying channel 280 is used to connect with the glue supply device to input glue A or glue B, and the receiving cavity 2110 is used to store glue A or glue B; the other end of the glue conveying channel 280 is connected to the input port of the glue back suction valve 24; the output ports of the two glue back suction valves 24 are respectively connected to the input end of the glue mixing tube 3 to output glue A and glue B.

[0041] Figure 1 and Figure 2This is a schematic diagram of an embodiment of the glue delivery mechanism for an AB glue dispensing machine according to the present invention. Two glue delivery units 2 are arranged adjacently above the base plate 1. The mixed glue A and glue B are output outward through the output port at the lower end of the glue mixing tube 3 and applied to the bonding area of ​​the processed parts.

[0042] like Figure 1 and Figure 2 As shown, this utility model discloses a glue delivery mechanism for an AB glue dispensing machine. Glue A or glue B, located in the receiving cavity 2110 of the cylinder 211, enters the glue delivery channel 280 from the middle under the force of the glue dispensing piston 212, and then enters the glue mixing tube 3 through the output port of the glue back suction valve 24. The outer periphery of the cylinder 211 is covered with an electric heating jacket 2111. The electric heating jacket 2111 heats glue A or glue B stored in the receiving cavity 2110 of the glue storage cylinder 21, and the heating temperature of the electric heating jacket 2111 can be controlled by a temperature controller 22, so that glue A and glue B in the two receiving cavities 2110 have more suitable temperatures and viscosities, and thus achieve more suitable flowability.

[0043] Furthermore, the glue delivery unit 2 also includes a pressure regulator 23;

[0044] The air pressure regulator 23 is mounted above the glue delivery plate 28; the glue dispensing piston 212 is driven by a power air source, and the air pressure regulator 23 is used to control the output air pressure of the power air source.

[0045] like Figure 2 and Figure 3 As shown, the output air pressure of the power source driving the glue dispensing piston 212 is controlled by the air pressure regulator 23, and the output air pressure is kept constant, so that glue A and glue B in the two receiving chambers 2110 are in a constant temperature and pressure state, which can further improve the viscosity stability of the output glue A or glue B, prevent the glue in the glue delivery channel 280 from interrupting the flow, and prevent the generation of air bubbles.

[0046] Furthermore, the glue delivery unit 2 also includes a gear pump 26;

[0047] The gear pump 26 is mounted on the top surface of the glue delivery plate 28;

[0048] The gear pump 26 is provided with an adjacent and connected suction chamber and a discharge chamber; both the suction chamber and the discharge chamber are equipped with gears, and the two gears mesh with each other. The inlet of the suction chamber is connected to the other end of the glue delivery channel 280, and the outlet of the discharge chamber is connected to the inlet of the glue back suction valve 24.

[0049] like Figure 2 and Figure 3 As shown, the other end of the glue delivery channel 280 can be controlled by the gear pump 26; when glue A or glue B needs to be delivered to the glue back suction valve 24, the corresponding gear pump 26 is started, the glue entering the suction chamber is squeezed by two meshing gears, and delivered from the output port of the discharge chamber to the input port of the glue back suction valve 24; when the glue in the glue storage tank 21 is insufficient and glue needs to be replenished, the gear pump 26 stops, and at the same time the glue supply device starts and inputs glue A or glue B into the glue storage tank 21.

[0050] The volume of the suction chamber and discharge chamber of the gear pump 26 is constant. The glue output of the gear pump 26 is linearly related to the rotation speed of the gear pump 26. Therefore, by controlling the rotation speed of the gear pump 26, the amount of glue output by the corresponding glue delivery channel 280 per unit time can be controlled, and thus the mixing ratio of glue A and glue B can be controlled.

[0051] Furthermore, the glue delivery unit 2 also includes a high-pressure air valve 25;

[0052] The high-pressure air valve 25 is installed near the end of the glue delivery plate 28 that is away from the glue back suction valve 24.

[0053] The output end of the high-pressure air valve 25 is connected to one end of the glue delivery channel 280, and the input end of the high-pressure air valve 25 is used to connect to the glue supply device to input glue A or glue B.

[0054] like Figure 2 and Figure 3 As shown, the opening and closing of one end of the glue delivery channel 280 can be controlled by the high-pressure air valve 25; when the glue delivery channel 280 delivers glue A or glue B to the glue back suction valve 24, the corresponding high-pressure air valve 25 closes; when the remaining amount of glue in the glue storage tank 21 is lower than the limit and glue needs to be replenished, the gear pump 26 stops and the corresponding high-pressure air valve 25 opens, and the glue supply device can input glue A or glue B into the glue storage tank 21 through the high-pressure air valve 25.

[0055] Furthermore, the glue delivery unit 2 also includes a solenoid valve 27;

[0056] The solenoid valve 27 is located near the corresponding glue storage cylinder 21, and the solenoid valve 27 is used to control the opening and closing of the power air source delivery pipeline.

[0057] like Figure 1-3 As shown, the opening and closing of the glue dispensing piston 212 is controlled by the solenoid valve 27 controlling the opening and closing of the power air supply pipeline, so that the glue storage cylinder 21 is in a pressure holding state or a pressure relief state, thereby allowing the glue to be output through the glue delivery channel 280, or allowing the glue storage cylinder 21 to be depressurized and glue to be replenished.

[0058] Furthermore, the glue storage cylinder 21 also includes a cover 214, a sensor 215, and a trigger rod 216;

[0059] The dispensing piston 212 includes an upper piston rod 2121 and a lower piston rod 2122;

[0060] The cover 214 is vertically installed above the cylinder 211; the lower end of the lower piston rod 2122 extends downward and into the receiving cavity 2110, the upper end of the lower piston rod 2122 is connected to the lower end of the upper piston rod 2121, and the upper end of the upper piston rod 2121 extends upward and into the cover 214;

[0061] The sensor 215 is mounted on the top surface of the upper piston rod 2121; the actuating rod 216 is mounted on the side of the upper piston rod 2121 and close to the upper end of the upper piston rod 2121, the upper end of the actuating rod 216 is connected to the sensor 215, and the lower end of the actuating rod 216 is a free end;

[0062] The sensor 215 is connected to the gear pump 26, the solenoid valve 27 and the high-pressure air valve 25 respectively.

[0063] like Figure 2 and Figure 3 The glue storage cylinder 21 shown is a double-output cylinder, in which the glue dispensing piston 212 includes an upper piston rod 2121 and a lower piston rod 2122 that can move up and down synchronously.

[0064] When the upper piston rod 2121 is pressed down and glue A or glue B is delivered to the glue back suction valve 24 through the glue delivery channel 280, the corresponding high-pressure air valve 25 is closed and the gear pump 26 is running. Then, when the glue level in the cylinder 211 drops and reaches the limit position, the lower end of the upper piston rod 2121 approaches the top surface of the cylinder 211, and the lower end of the trigger rod 216 contacts and is subjected to force with the top surface of the cylinder 211. The trigger rod 216 triggers the sensor 215, which simultaneously sends signals to the gear pump 26, the solenoid valve 27, and the high-pressure air valve 25. The gear pump 26 is closed, the high-pressure air valve 25 is opened, the solenoid valve 27 disconnects the pipeline for delivering the power air source, and the glue storage cylinder 21 is depressurized. Subsequently, the glue supply device is started and glue A or glue B is input into the glue storage cylinder 21 through the high-pressure air valve 25.

[0065] Subsequently, as the glue in cylinder 211 is replenished, the glue dispensing piston 212 is pushed up by the replenished glue. When the upper end of the upper piston rod 2121 approaches the top of the cover 214, and the sensor 215 contacts and triggers the top of the cover 214, the sensor 215 simultaneously sends signals to the gear pump 26, the solenoid valve 27, and the high-pressure air valve 25 respectively. The high-pressure air valve 25 closes, the solenoid valve 27 opens the pipeline for delivering the power air source, and pressurizes the glue storage cylinder 21 to the set pressure value. Then the gear pump 26 starts and delivers glue A or glue B to the glue return valve 24.

[0066] Furthermore, the glue storage cylinder 21 also includes an indicator plate 213, the cover 214 is made of transparent material, and the circumferential surface of the cover 214 is provided with scale lines;

[0067] The indicator piece 213 is mounted between the sensor 215 and the top surface of the upper piston rod 2121. For example... Figure 2 and Figure 3 As shown, by observing the position of the indicator 213 and the corresponding scale lines, it can be determined that the indicator 213 is preferably red or orange-yellow.

[0068] The indicator 213 is red or orange-yellow, which can improve the recognizability of the indicator 213 and improve the convenience of reading the corresponding scale.

[0069] In summary, such as Figure 1-3 In the embodiment of the present invention shown, the glue delivery mechanism for the AB glue dispensing machine has an electric heating jacket 2111 covering the outer periphery of the cylinder 211. The heating temperature of the electric heating jacket 2111 can be controlled by a temperature controller 22, so that the glue A and glue B located in the two receiving cavities 2110 have more suitable temperature and viscosity, thereby making the glue A and glue B have more moderate fluidity, which can improve the uniformity of glue mixing in the glue mixing tube 3, and thus improve the bonding performance of the dispensed AB glue.

[0070] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A glue delivery mechanism for an AB glue dispensing machine, characterized in that, Includes a base plate and two glue delivery units; The base plate is mounted on the AB glue dispensing machine; the glue delivery unit includes a glue storage cylinder, a temperature controller, a glue delivery plate, and a glue back suction valve; the glue storage cylinder includes a cylinder body and a glue dispensing piston; The glue delivery plate has a glue delivery channel inside; two glue delivery plates are installed adjacently on the top surface of the base plate; the temperature controller is mounted above the glue delivery plate; the cylinder is installed on the top surface of the glue delivery plate, the cylinder has a receiving cavity inside, the bottom of the receiving cavity is connected to the middle of the glue delivery channel, the glue dispensing piston is installed above the cylinder, and the output end of the glue dispensing piston extends into the receiving cavity from above; the outer periphery of the cylinder is covered with an electric heating sleeve, and the electric heating sleeve is electrically connected to the temperature controller; One end of the glue delivery channel is connected to the glue supply device to input glue A or glue B, and the receiving cavity is used to store glue A or glue B; the other end of the glue delivery channel is connected to the input port of the glue back suction valve; the output ports of the two glue back suction valves are respectively connected to the input end of the glue mixing tube to output glue A and glue B.

2. The glue delivery mechanism for an AB glue dispensing machine according to claim 1, characterized in that, The glue delivery unit also includes a pressure regulator; The air pressure regulator is mounted above the glue delivery plate; the glue dispensing piston is driven by a power air source, and the air pressure regulator is used to control the output air pressure of the power air source.

3. The glue delivery mechanism for an AB glue dispensing machine according to claim 2, characterized in that, The glue delivery unit also includes a gear pump; The gear pump is installed on the top surface of the glue delivery plate; The gear pump has adjacent and interconnected suction chamber and discharge chamber; both the suction chamber and the discharge chamber are equipped with gears, and the two gears mesh with each other. The inlet of the suction chamber is connected to the other end of the glue delivery channel, and the outlet of the discharge chamber is connected to the inlet of the glue back suction valve.

4. The glue delivery mechanism for an AB glue dispensing machine according to claim 3, characterized in that, The glue delivery unit also includes a high-pressure air valve; The high-pressure air valve is installed near the end of the glue delivery plate that is away from the glue back suction valve. The output end of the high-pressure air valve is connected to one end of the glue delivery channel, and the input end of the high-pressure air valve is used to connect to the glue supply device to input glue A or glue B.

5. The glue delivery mechanism for an AB glue dispensing machine according to claim 4, characterized in that, The glue delivery unit also includes a solenoid valve; The solenoid valve is located near the corresponding glue storage cylinder, and the solenoid valve is used to control the on / off of the power air source delivery pipeline.

6. The glue delivery mechanism for an AB glue dispensing machine according to claim 5, characterized in that, The glue storage cylinder also includes a cover, a sensor, and a trigger rod; The dispensing piston includes an upper piston rod and a lower piston rod; The cover is vertically installed above the cylinder; the lower end of the lower piston rod extends downward and into the receiving cavity, the upper end of the lower piston rod is connected to the lower end of the upper piston rod, and the upper end of the upper piston rod extends upward and into the cover; The sensor is mounted on the top surface of the upper piston rod; the trigger rod is mounted on the side of the upper piston rod and close to the upper end of the upper piston rod, the upper end of the trigger rod is connected to the sensor, and the lower end of the trigger rod is a free end; The sensors are respectively connected to the gear pump, the solenoid valve, and the high-pressure air valve.

7. The glue delivery mechanism for an AB glue dispensing machine according to claim 6, characterized in that, The glue storage cylinder also includes an indicator plate, the cover is made of transparent material, and the circumference of the cover is provided with scale lines; The indicator plate is mounted between the sensor and the top surface of the upper piston rod.

8. The glue delivery mechanism for an AB glue dispensing machine according to claim 7, characterized in that, The indicator is red or orange-yellow.

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