A glue dispensing device and a quantitative glue coating equipment thereof

Abstract

The utility model discloses a gluing device and quantitative gluing equipment thereof relates to gluing process technical field, and quantitative gluing equipment includes: cannon barrel, it is used to accommodate gluing, drive part, it is used to push gluing and flow from the output end of cannon barrel, the input end and the output end of cannon barrel of conveying pump are equipped with connecting piece, glue needle head, it is equipped in the output end of conveying pump, control device, drive part and conveying pump all are connected with control device. The device is applicable to small glue quantity process, can realize 300cc branch installation glue water feed.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating technology, and more specifically, to a quantitative adhesive coating device. Furthermore, it also relates to an adhesive dispensing apparatus that includes the aforementioned quantitative adhesive coating device. Background Technology

[0002] As adhesive coating processes are applied to multiple stages of automobile production, different processes have different requirements for the amount of adhesive applied. Taking electric drive adhesive coating as an example, the adhesive required for temperature and humidity sensors is only 0.25cc (0.25 cubic centimeters). Therefore, the commonly used plunger metering and 5-gallon (where gallon is a unit of volume, mainly used to measure the volume of liquid) feeding system is not applicable. First, plunger metering is achieved by a motor driving an electric cylinder to dispense adhesive. Too small an amount of adhesive cannot guarantee its accuracy. Second, if the amount of adhesive dispensed is too small, the 5-gallon (where 1 imperial gallon equals 4546.092cc and 1 US gallon equals 3785.412cc) container will not be completely used, which can easily lead to spoilage.

[0003] In summary, how to provide a coating device suitable for small-volume adhesive processes that can supply 300cc tube-sized adhesives is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a quantitative glue application device that is suitable for small glue volume processes and can supply 300cc tube-sized glue.

[0005] Another objective of this invention is to provide a glue applicator that includes the aforementioned quantitative glue applicator.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A metering adhesive application device, comprising:

[0008] The barrel, used to hold the adhesive coating;

[0009] A driving component for propelling the adhesive out of the output end of the barrel;

[0010] A delivery pump, with a connecting component between its input end and the output end of the barrel;

[0011] A dispensing needle is located at the output end of the delivery pump;

[0012] The control device is connected to both the drive unit and the delivery pump.

[0013] In one embodiment, the delivery pump includes a servo motor, a reducer connected to the servo motor, and a screw pump connected to the reducer. The output end of the screw pump is provided with the dispensing needle. The servo motor and the control device are connected.

[0014] In one embodiment, the driving component includes a telescopic cylinder, a piston connected to the telescopic end of the telescopic cylinder, and an air source control component. The telescopic cylinder is located at the top of the barrel. A mounting plate is provided on one side of the delivery pump. The mounting plate is provided with the air source control component. The air source control component is connected to the telescopic cylinder to supply air to the telescopic cylinder and drive the telescopic cylinder to telescopically move.

[0015] In one embodiment, the gas source control component includes a main gas source and a three-way solenoid valve. A pressure reducing valve is provided between the main gas source and the inlet of the three-way solenoid valve. The first outlet of the three-way solenoid valve is connected to the top air port of the telescopic cylinder, and the second outlet of the three-way solenoid valve is connected to the bottom air port of the telescopic cylinder. When the upper electromagnet of the three-way solenoid valve is energized, gas flows from the first outlet into the top air port to drive the piston to descend. When the lower electromagnet of the three-way solenoid valve is energized, gas enters the bottom air port from the second outlet to drive the piston to ascend.

[0016] In one embodiment, an auxiliary air source is further provided at the bottom of the telescopic cylinder, and the outlet of the auxiliary air source is located at the upper end of the piston to drive the piston to press down.

[0017] In one embodiment, the top air vent is equipped with a silencer.

[0018] In one embodiment, a pressure sensor is also included on one side of the screw pump, the pressure sensor being connected to the control device to transmit the inlet pressure data of the screw pump to the control device.

[0019] In one embodiment, an alarm connected to the control device is also included, the alarm being used to issue an alarm when the pressure of the screw pump is higher than the operating range.

[0020] In one embodiment, the outer periphery of the barrel is a heat-insulating cover for heat preservation.

[0021] A glue applicator, comprising the quantitative glue application equipment described in any one of the above claims.

[0022] When using the quantitative adhesive coating equipment provided by this utility model, the capacity of the barrel can be set to the required capacity (e.g., 300cc). First, the control device controls the operation of the drive component, which pushes the adhesive to flow out from the output end of the barrel and into the delivery pump through the connecting component, thus realizing the feeding operation of the barrel to the delivery pump. Then, the control device controls the operation of the delivery pump, which accurately pumps the adhesive into the dispensing needle. Finally, the adhesive flows out from the dispensing needle, thereby realizing the adhesive application operation. The delivery pump can accurately control the amount of adhesive dispensed, ensuring accuracy even when the amount of adhesive dispensed is small. Moreover, the drive component can push the adhesive to flow out from the output end of the barrel, so that there is no excessive unused adhesive in the barrel, avoiding the deterioration of the adhesive.

[0023] In summary, the quantitative glue application equipment provided by this utility model is suitable for small glue volume processes and can achieve 300cc tube glue supply.

[0024] In addition, this utility model also provides a glue applicator that includes the above-mentioned quantitative glue applicator. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the quantitative adhesive coating equipment provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the quantitative adhesive application equipment from another perspective.

[0028] Figure 3 This is a front sectional view of the gun barrel and drive components;

[0029] Figure 4 This is a structural diagram of the gas source control components and mounting plate;

[0030] Figure 5 This is a schematic diagram of the gas source control component.

[0031] Figures 1-5 middle:

[0032] 1 is the barrel, 11 is the shell, 12 is the 300cc tube of glue, 2 is the connector, 3 is the air source control component, 31 is the three-way solenoid valve, 32 is the first outlet, 33 is the second outlet, 34 is the upper electromagnet, 35 is the lower electromagnet, 36 is the pressure reducing valve, 4 is the pressure sensor, 5 is the servo motor, 6 is the reducer, 7 is the screw pump, 8 is the glue dispensing needle, 9 is the drive component, 91 is the telescopic cylinder, 92 is the piston, 93 is the mounting plate, 94 is the top air port, and 95 is the bottom air port. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] The core of this invention is to provide a quantitative adhesive application device suitable for small-volume adhesive processes, capable of supplying 300cc tube-sized adhesives. Another core aspect of this invention is to provide an adhesive dispensing device that includes the aforementioned quantitative adhesive application device.

[0035] Please refer to Figure 1 and Figure 2 This specific embodiment provides a quantitative adhesive coating device, including:

[0036] Cannon barrel 1, which is used to hold the adhesive coating;

[0037] Drive component 9, which is used to push the adhesive to flow out from the output end of the barrel 1;

[0038] A delivery pump, with a connecting piece 2 between its input end and the output end of the barrel 1;

[0039] Dispensing needle 8 is located at the output end of the delivery pump;

[0040] The control device, drive unit 9, and delivery pump are all connected to the control device.

[0041] In practical applications, the shape, type, size, and position of the barrel 1, drive component 9, delivery pump, dispensing needle 8, and control device can be determined according to the actual situation and needs.

[0042] When using the quantitative adhesive coating equipment provided by this utility model, the capacity of the barrel 1 can be set to the required capacity (e.g., 300cc). First, the control device controls the operation of the drive component 9, which pushes the adhesive to flow out from the output end of the barrel 1 and into the delivery pump through the connecting component 2, thus realizing the feeding operation of the barrel 1 to the delivery pump. Then, the control device controls the operation of the delivery pump, which accurately pumps the adhesive into the dispensing needle 8. Finally, the adhesive flows out from the dispensing needle 8, thereby realizing the adhesive application operation. The delivery pump can accurately control the amount of adhesive dispensed, ensuring accuracy even when the amount of adhesive dispensed is small. Moreover, the drive component 9 can push the adhesive to flow out from the output end of the barrel 1, so that there is not much unused adhesive in the barrel 1, avoiding the situation of adhesive deterioration.

[0043] In summary, the quantitative glue application equipment provided by this utility model is suitable for small glue volume processes and can achieve 12 feedings of 300cc tube glue.

[0044] In one embodiment, the delivery pump includes a servo motor 5, a reducer 6 connected to the servo motor 5, and a screw pump 7 connected to the reducer 6. The output end of the screw pump 7 is equipped with a dispensing needle 8. The servo motor 5 is connected to a control device. Therefore, when the control device controls the servo motor 5 to run, the servo motor 5 acts on the screw pump 7 through the reducer 6, and the screw pump 7 performs the dispensing operation.

[0045] It should be noted that the screw pump 7 is a positive displacement pump that achieves liquid transport through screw meshing. It mainly consists of a single-headed helical rotor and a double-helical stator made of elastic material. When the rotor rotates planetarily around the stator axis, the sealed cavity formed between the rotor and stator moves along the helical path, enabling the medium to be continuously, uniformly, and with a constant volume transported from the suction port to the discharge port. Compared with other types of pumps, the screw pump 7 has significant advantages: its self-priming capability is superior to centrifugal pumps; it does not require valves and has stable pressure and flow (compared to plunger pumps); it can transport high-viscosity materials (superior to gear pumps); it can handle media containing impurities, gases, and corrosive substances (superior to diaphragm pumps); and it can also be used for filling special agents such as explosive slurries.

[0046] In one embodiment, such as Figure 3 As shown, the driving component 9 includes a telescopic cylinder 91, a piston 92 connected to the telescopic end of the telescopic cylinder 91, and an air source control component. The telescopic cylinder 91 is located on the top of the barrel 1. A mounting plate 93 is provided on one side of the delivery pump. The mounting plate 93 is provided with an air source control component 3. The air source control component 3 is connected to the telescopic cylinder 91 to supply air to the telescopic cylinder 91 and drive the telescopic cylinder 91 to telescopically move.

[0047] It should be noted that the barrel 1 includes a housing 11 and a 300cc tube of glue 12. The 300cc tube of glue 12 is embedded in the housing 11. A telescopic cylinder 91 is located on the top of the housing 11. The telescopic end of the telescopic cylinder 91 is equipped with a piston 92, which is inserted into the 300cc tube of glue 12 to push the glue from the output end of the 300cc tube of glue 12. Moreover, when the barrel 1 needs to be supplied with material, the control device controls the operation of the air source control component, which supplies air to the telescopic cylinder 91 to drive the telescopic cylinder 91 to telescopically move.

[0048] In one embodiment, such as Figure 4 and Figure 5 As shown, the gas source control component 3 includes a main gas source and a three-way solenoid valve 31. A pressure reducing valve 36 is provided between the main gas source and the inlet of the three-way solenoid valve 31. The first outlet 32 ​​of the three-way solenoid valve 31 is connected to the top air port 94 of the telescopic cylinder 91, and the second outlet 33 of the three-way solenoid valve 31 is connected to the bottom air port 95 of the telescopic cylinder 91. When the upper electromagnet 34 of the three-way solenoid valve 31 is energized, gas flows from the first outlet 32 ​​into the top air port 94 to drive the piston 92 to descend. When the lower electromagnet 35 of the three-way solenoid valve 31 is energized, gas enters the bottom air port 95 from the second outlet 33 to drive the piston 92 of the telescopic cylinder 91 to rise.

[0049] It should be noted that the main air source is connected to the inlet of the three-way solenoid valve 31 via the pressure reducing valve 36. When the upper electromagnet 34 of the three-way solenoid valve 31 is energized, gas flows out from the first outlet 32 ​​and then into the top air port 94 of the telescopic cylinder 91 to drive the piston 92 of the telescopic cylinder 91 to descend. When the lower electromagnet 35 of the three-way solenoid valve 31 is energized, gas flows out from the second outlet 33 and then into the bottom air port 95 of the telescopic cylinder 91 to drive the piston 92 of the telescopic cylinder 91 to rise. That is, when compressed air enters one chamber of the telescopic cylinder 91 through the top air port 94 to push the piston 92 to move, the gas in the other chamber of the telescopic cylinder 91 needs to be discharged through the bottom air port 95 to avoid air pressure hindering the movement of the piston 92. When the piston 92 needs to move in the opposite direction, the three-way solenoid valve 31 switches the air path, the original air inlet chamber becomes the air outlet chamber, and the gas is discharged through the top air port 94, so that the piston 92 resets under the action of air pressure difference or external force.

[0050] In one embodiment, an auxiliary air source is also included, located at the bottom of the telescopic cylinder 91. The outlet of the auxiliary air source is located at the upper end of the piston 92 to drive the piston 92 downward. That is, an auxiliary air source is needed to provide additional downward pressure to drive the piston 92 of the telescopic cylinder 91 to descend.

[0051] In one embodiment, the top air inlet 94 is equipped with a muffler. This muffler, also known as an exhaust pipe muffler, is primarily used to reduce noise generated by exhaust gases from vehicles, industrial equipment, etc.

[0052] In one embodiment, a pressure sensor 4 is further included on one side of the screw pump 7. The pressure sensor 4 is connected to a control device to transmit the inlet pressure data of the screw pump 7 to the control device. The pressure sensor 4 functions to: 1. monitor the inlet pressure of the screw pump 7 to ensure adhesive application accuracy; 2. monitor the dispensing pressure of the screw pump 7 to ensure adhesive application accuracy. For example, if air bubbles are present inside the nozzle 1, the adhesive flowing out of the nozzle 1 will contain air bubbles. When the adhesive passes through the pressure sensor 4, a shortfall in adhesive will occur, causing the adhesive strip dispensed by the dispensing needle 8 to be interrupted.

[0053] In one embodiment, an alarm connected to the control device is also included. The alarm is used to sound an alarm when the pressure of the screw pump 7 exceeds the operating range. The screw pump 7 operates within a pressure range during normal operation. When the pressure of the screw pump 7 exceeds the operating range, the alarm can sound a high-pressure alarm. At this time, the dispensing needle 8 may become clogged, requiring the operator to be promptly reminded to replace the dispensing needle 8.

[0054] To further illustrate the usage of the quantitative adhesive coating equipment provided by this utility model, the following examples will be provided.

[0055] First, the control device controls the operation of the air source control component 3. For example, when the upper electromagnet 34 of the three-way solenoid valve 31 is energized, gas flows from the first outlet 32 ​​into the top air port 94, driving the piston 92 to descend. When the piston 92 descends, it pushes the glue pump in the barrel 1 out. The glue passes through the connector 2 and enters the screw pump 7. Second, the control device controls the servo motor 6 to rotate, which acts on the screw pump 7 through the reducer 6, so that the glue is dispensed through the screw pump 7. The glue can flow to the glue dispensing needle 8 for application. In addition, this device is equipped with a pressure sensor 4 to transmit the pressure of the screw pump 7 to the control device in real time, which helps to ensure the glue application accuracy.

[0056] In one embodiment, the outer periphery of the barrel 1 is a heat insulation cover for heat preservation, so that the adhesive coating is kept within a preset temperature range.

[0057] In addition to the aforementioned quantitative adhesive coating equipment, this utility model also provides a glue applicator that includes the quantitative adhesive coating equipment disclosed in the above embodiments. For the structure of other parts of the glue applicator, please refer to the prior art, which will not be repeated here.

[0058] It should be noted that the first exit 32 and the second exit 33 mentioned in this application are only distinguished by their different locations and do not have any order of precedence.

[0059] In addition, it should be noted that the orientation or positional relationship indicated by "top" and "bottom" in this application is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the purpose of simplifying the description and making it easier to understand, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this utility model is within the protection scope of this utility model and will not be elaborated upon here.

[0061] The above provides a detailed description of the glue application device and its quantitative glue coating equipment provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quantitative adhesive application device, characterized in that, include: Cannon barrel (1), which is used to hold the adhesive coating; A drive unit (9) is used to push the adhesive out of the output end of the barrel (1); A delivery pump is provided with a connector (2) between its input end and the output end of the barrel (1). The dispensing needle (8) is located at the output end of the delivery pump; The control device is connected to both the drive unit (9) and the delivery pump.

2. The quantitative adhesive coating equipment according to claim 1, characterized in that, The delivery pump includes a servo motor (5), a reducer (6) connected to the servo motor (5), and a screw pump (7) connected to the reducer (6). The output end of the screw pump (7) is provided with the dispensing needle (8). The servo motor (5) is connected to the control device.

3. The quantitative adhesive coating equipment according to claim 2, characterized in that, The driving component (9) includes a telescopic cylinder (91), a piston (92) connected to the telescopic end of the telescopic cylinder (91), and an air source control component. The telescopic cylinder (91) is located on the top of the barrel (1). A mounting plate (93) is provided on one side of the delivery pump. The mounting plate (93) is provided with an air source control component (3). The air source control component (3) is connected to the telescopic cylinder (91) to supply air to the telescopic cylinder (91) and drive the telescopic cylinder (91) to telescopically move.

4. The quantitative adhesive coating equipment according to claim 3, characterized in that, The gas source control component (3) includes a main gas source and a three-way solenoid valve (31). A pressure reducing valve (36) is provided between the main gas source and the inlet of the three-way solenoid valve (31). The first outlet (32) of the three-way solenoid valve (31) is connected to the top air port (94) of the telescopic cylinder (91). The second outlet (33) of the three-way solenoid valve (31) is connected to the bottom air port (95) of the telescopic cylinder (91). When the upper electromagnet (34) of the three-way solenoid valve (31) is energized, gas flows from the first outlet (32) into the top air port (94) to drive the piston (92) to descend. When the lower electromagnet (35) of the three-way solenoid valve (31) is energized, gas enters the bottom air port (95) from the second outlet (33) to drive the piston (92) to rise.

5. The quantitative adhesive coating equipment according to claim 4, characterized in that, It also includes an auxiliary air source located at the bottom of the telescopic cylinder (91), the outlet of the auxiliary air source being located at the upper end of the piston (92) to drive the piston (92) to press down.

6. The quantitative adhesive coating equipment according to claim 4, characterized in that, The top air inlet (94) is equipped with a silencer.

7. The quantitative adhesive application equipment according to any one of claims 2 to 6, characterized in that, It also includes a pressure sensor (4) located on one side of the screw pump (7), the pressure sensor (4) being connected to the control device to transmit the inlet pressure data of the screw pump (7) to the control device.

8. The quantitative adhesive application equipment according to any one of claims 2 to 6, characterized in that, It also includes an alarm connected to the control device, which is used to issue an alarm when the pressure of the screw pump (7) is higher than the operating range.

9. The quantitative adhesive coating equipment according to any one of claims 1 to 6, characterized in that, The outer periphery of the barrel (1) is a heat insulation cover for heat preservation.

10. A glue-applying device, characterized in that, The quantitative adhesive applicator as described in any one of claims 1 to 9.

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