Automatic air charging and discharging device and gluing equipment

Abstract

The utility model discloses an automatic inflating and deflating device and gluing equipment, and relates to the technical field of gluing equipment, the automatic inflating and deflating device comprises a pressure plate, a pressure plate, a gas cylinder, a gas inlet pipe and a gas outlet pipe, the inflation and exhaust assembly comprises a mounting plate, an air pipe connector is arranged on the mounting plate, the first end of the air pipe connector communicates with the cavity, and the second end of the air pipe connector is connected with a vacuum pump. The control system controls starting and stopping of the vacuum pump and connection and disconnection of the air pipe connector through an electromagnetic valve assembly. And the filter membrane is used for enabling air in the glue barrel to normally pass through and preventing glue in the glue barrel from being discharged from the cavity. According to the automatic air charging and discharging device and the gluing equipment, the technical problems that time and labor are wasted and the glue barrel replacement efficiency is poor when air charging and discharging of the equipment are completed in a manual operation mode are solved. The air pipe connector is automatically controlled to be switched from the closed state to the on state through the electromagnetic valve assembly, manual valve opening and closing and manual vacuum pump connection are not needed, manpower is saved, and meanwhile the glue barrel replacing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of adhesive coating equipment technology, and in particular to an automatic inflation and deflation device and adhesive coating equipment. Background Technology

[0002] With the development of automobile manufacturing technology and its ever-increasing performance requirements, the application of adhesive coating technology in automobile production is becoming more and more widespread. The application of adhesive bonding technology in automobile manufacturing can not only enhance the automobile structure, fasten and prevent rust, provide heat insulation and vibration reduction, and decorate the interior and exterior, but also replace traditional processes such as welding and riveting of certain parts, realizing the connection between the same or different materials. The adhesive coating process plays an increasingly important role in automobile production. As the adhesive coating process is applied to multiple processes in automobile production, the number of adhesive coating equipment has increased dramatically, and the adhesive tanks of the adhesive coating equipment need to be replaced frequently during operation.

[0003] Existing glue bucket replacement methods involve manual air purging and inflation of the equipment after the glue bucket is in place, which is time-consuming, labor-intensive, and inefficient. Furthermore, existing air purging and inflation devices require manual monitoring of the vent during the purging process; if glue overflows, the plug is tightened. This can result in incomplete air removal from the glue bucket, causing the dispensing pump to run dry, especially with low-viscosity glues, necessitating further air purging to resolve the issue. Therefore, this paper proposes an automated air purging and inflation device and glue dispensing equipment to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide an automatic inflation and deflation device and a glue application equipment, which solves the technical problems of time-consuming and labor-intensive manual operation for inflation and deflation of equipment, and poor glue bucket replacement efficiency.

[0005] To achieve the above objectives, this utility model provides an automatic inflation / deflation device, comprising:

[0006] A pressure plate, wherein the interior of the pressure plate is provided with a cavity, and the cavity is connected to the interior of the glue barrel;

[0007] A filling and venting assembly is symmetrically arranged on both sides of the pressure plate, and the filling and venting assembly includes:

[0008] A mounting plate is connected to the pressure plate. An air pipe connector is provided on the mounting plate. The first end of the air pipe connector is connected to the cavity, and the second end of the air pipe connector is connected to a vacuum pump.

[0009] The control system controls the start and stop of the vacuum pump and the opening and closing of the air pipe joint through a solenoid valve assembly;

[0010] A filter membrane is disposed on the inner side of the mounting plate. The filter membrane is used to allow air to pass through the glue bucket normally and to prevent glue from being discharged from the cavity in the glue bucket.

[0011] Preferably, a sealing ring is provided on the outer peripheral side of the lower end of the pressure plate, and the outer side wall of the sealing ring is in contact with the inner side wall of the glue bucket.

[0012] Preferably, the pressure plate has an assembly groove on its side, which is adapted to the mounting plate.

[0013] Preferably, a plurality of partitions are provided on the inner side of the mounting plate, and a filter membrane is attached to the side of each partition near the cavity.

[0014] Preferably, the surface of the partition is arrayed with a plurality of through holes.

[0015] Preferably, a mating groove is provided on the inner side of the mounting plate, the mating groove is connected to the air pipe connector, and the mating groove and the partition plate form a ventilation chamber.

[0016] Preferably, a sealing gasket is provided on the side of the assembly groove, and the side of the sealing gasket opposite to the assembly groove is attached to the partition.

[0017] Preferably, the top of the pressure plate is connected to a glue injection pump, which is used to deliver the glue in the glue bucket to the glue application valve.

[0018] An adhesive application device, comprising the automatic inflation and deflation device described in any of the preceding claims.

[0019] Compared to the aforementioned background technology, the automatic inflation and deflation device provided by this utility model has the following beneficial effects: When it is necessary to remove the old glue bucket, the control system automatically controls the air pipe connector to switch from the closed state to the open state through the solenoid valve assembly. The vacuum pump inflates the inside of the glue bucket, and the pressure force pushes the pressure plate body out of the old glue bucket. There is no need for manual operation of the valve switch or manual connection of the vacuum pump, saving manpower and improving the efficiency of glue bucket replacement. On the other hand, as the pressure plate moves downward by its own weight and the downward pressure provided by the glue supply system, the control system automatically controls the air pipe connector to switch from the closed state to the open state through the solenoid valve assembly, expelling the air in the glue bucket. The filter membrane set on the inner side of the mounting plate allows the air in the glue bucket to pass normally and prevents the glue in the glue bucket from being discharged from the cavity, thereby preventing the glue pump from running dry due to incomplete air removal in the glue bucket, thus avoiding re-venting and further speeding up the efficiency of glue bucket replacement. Attached Figure Description

[0020] 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.

[0021] Figure 1 A perspective view of the automatic inflation / deflation device provided in the embodiment of this utility model;

[0022] Figure 2 An exploded view of the automatic inflation / deflation device provided in an embodiment of this utility model.

[0023] Specifically, 1-pressure plate; 2-assembly groove; 3-cavity; 4-mounting plate; 5-air pipe connector; 6-fitting groove; 7-partition; 8-filter membrane; 9-sealing ring; 10-through hole; 11-first limit slot; 12-second limit slot. Detailed Implementation

[0024] 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.

[0025] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1 and Figure 2 As shown, in order to achieve the above objectives, this utility model provides an automatic inflation and deflation device, including: a pressure plate 1 and an inflation and deflation assembly disposed on the pressure plate 1.

[0027] Specifically, the pressure plate 1 has an internal cavity 3 that connects to the inside of the glue tank. The upper end of the pressure plate 1 is connected to a glue injection pump (not shown in the figure). The glue injection pump delivers the glue in the glue tank to the glue application valve (not shown in the figure), and then the glue application valve applies the glue to the surface of the product. The glue injection pump and the glue application valve are both relatively mature existing technologies, so they will not be described in detail.

[0028] In addition, two inflation / deflation assemblies are symmetrically arranged on both sides of the pressure plate 1. The inflation / deflation assemblies synchronously inflate or deflate the inside of the glue bucket. The inflation / deflation assemblies include: mounting plates 4, which are fixedly connected to the outer side wall of the pressure plate 1. The two mounting plates 4 seal the cavity 3. At the same time, an air pipe connector 5 is provided on the mounting plate 4. The lower end of the air pipe connector 5 is connected to the cavity 3, and the upper end of the air pipe connector 5 is connected to a vacuum pump. The air pipe connector 5 is connected to the vacuum pump (not shown in the figure). A solenoid valve assembly (not shown in the figure) is provided on the air pipe connector 5. The solenoid valve assembly controls the opening and closing of the air pipe connector 5. When it is necessary to remove the old glue bucket, the control system automatically controls the air pipe connector 5 to switch from the closed state to the open state through the solenoid valve assembly. The vacuum pump inflates the inside of the glue bucket, and the pressure of the air pushes the pressure plate 1 body out of the old glue bucket. There is no need for manual operation of the valve switch or manual connection of the vacuum pump, which saves manpower and improves the efficiency of glue bucket replacement.

[0029] It should be noted that the vacuum pump and solenoid valve assembly are connected through the control system. Preferably, the control system is a PLC control system. The PLC control system controls the start and stop of the vacuum pump and the opening and closing of the solenoid valve assembly. At the same time, a vacuum sensor is installed in the pressure plate 1. The vacuum sensor can detect the vacuum level inside the glue tank and feed it back to the PLC control system. During operation, the PLC control system can control the opening and closing of the precision air pipe connector 5 and the start and stop of the vacuum pump according to the vacuum level inside the glue tank.

[0030] A filter membrane 8 is installed on the inner side of the mounting plate 4. As the pressure plate moves downwards by its own weight and the downward pressure provided by the glue supply system, the PLC control system automatically controls the air pipe connector to switch from the closed state to the open state through the solenoid valve assembly, thereby venting the air in the glue tank. The filter membrane 8 installed on the inner side of the mounting plate prevents the glue in the glue tank from being discharged from the cavity, thus preventing the glue tank from not being completely vented, which would cause the glue pump to run dry. This avoids the need for re-venting and further speeds up the efficiency of changing the glue tank.

[0031] It should be noted that when the gas in the glue container is completely vented, the air pressure in the cavity will suddenly drop to a negative pressure. When the solenoid valve assembly detects that the air pressure in the cavity is negative, the PLC control system will automatically control the air pipe connector to switch from the open state to the closed state through the solenoid valve assembly to complete the venting of the glue container.

[0032] In operation, initially, the solenoid valve assembly is de-energized, the air pipe connector 5 is closed, and the vacuum pump is off. The control system activates the vacuum pump and automatically switches the air pipe connector 5 from closed to open via the solenoid valve assembly. The vacuum pump inflates the old glue container, using air pressure to push the pressure plate 1 out of the old container. The old container is then removed from the workstation, and the new container is installed. The pressure plate 1 descends into the new container, simultaneously expelling gas from it until it stably holds the glue, completing the container replacement. The entire replacement process requires no manual operation of valves or connection of the vacuum pump, saving manpower and improving efficiency.

[0033] A sealing ring 9 is provided on the outer peripheral side of the lower end of the pressure plate 1. The outer side wall of the sealing ring 9 is attached to the inner side wall of the glue bucket. The sealing ring 9 can improve the sealing strength between the pressure plate 1 and the inner wall of the glue bucket, prevent gas leakage during the inflation process into the glue bucket, and thus enable the pressure plate 1 to rise stably under the supporting force of air pressure.

[0034] Preferably, the sealing ring 9 is made of rubber. Utilizing the strong wear resistance of rubber itself, it can be used for a long time and the number of replacements can be reduced. Moreover, the rubber sealing ring 9 has a certain elastic deformation capability, and the outer wall of the sealing ring 9 can fit tightly against the inner wall of the glue bucket, further ensuring the sealing effect inside the glue bucket.

[0035] In one embodiment of this utility model, a plurality of partitions 7 are provided on the inner side of the mounting plate 4. Each partition 7 has a filter membrane 8 attached to the side near the cavity 3. The filter membrane is held flat by the side of the partition 7, thereby ensuring that the filter membrane 8 can always filter the gas discharged from the cavity 3 and guarantee the filtration effect.

[0036] Furthermore, a first limiting groove 11 is provided on a partition 7 near the cavity 3, and the first limiting groove 11 is located on the side of the partition 7 near the cavity 3. At the same time, a second limiting groove 12 is provided on the side of the assembly groove 2. The second limiting groove 12 is adapted to the first limiting groove 11. When the partition 7 is fixed in the assembly groove 2, a limiting block (not shown in the figure) is engaged in the first limiting groove. With the assistance of the limiting block, the second limiting groove 12 and the first limiting groove 11 are both engaged with the limiting block. The first limiting groove 11 and the second limiting groove 12 are precisely engaged, which improves the positioning accuracy between the partition 7 and the assembly groove 2, prevents the partition 7 and the assembly groove 2 from being misaligned when they are engaged, and thus enhances the sealing effect between the partition 7 and the assembly groove 2, avoiding air leakage during the inflation or deflation process inside the glue bucket.

[0037] It should be noted that the surface of the partition 7 is arrayed with several through holes 10 to ensure the normal passage of gas. Furthermore, a mating groove 6 is provided on the inner side of the mounting plate 4. The mating groove 6 connects to the gas pipe connector 5. The mating groove 6 and the partition 7 form a ventilation chamber. The ventilation chamber allows gas to enter or exit through the through holes 10 on the partition 7, thereby ensuring that the gas passes evenly through all positions of the filter membrane 8, improving gas passage efficiency and maximizing the utilization rate of the filter membrane 8.

[0038] In addition, a sealing gasket is provided on the side of the assembly slot 2. The side of the sealing gasket away from the assembly slot 2 is attached to the partition 7. The sealing gasket enhances the sealing strength between the partition 7 and the assembly slot 2, further preventing air leakage during the inflation or deflation process inside the glue bucket.

[0039] When this utility model is in use, the PLC control system controls the vacuum pump to start, and at the same time, the solenoid valve assembly automatically controls the air pipe connector 5 to switch from the closed state to the open state. The vacuum pump fills the old glue bucket with air, and the pressure plate 1 is pushed out of the old glue bucket by the air pressure. The old glue bucket is removed from the workstation, and the new glue bucket is installed on the workstation. The pressure plate 1 descends into the new glue bucket. At the same time as the pressure plate 1 descends, the vacuum pump discharges the gas in the new glue bucket until the pressure plate 1 stably holds the glue in the new glue bucket, thus completing the replacement of the glue bucket.

[0040] In summary, the solenoid valve assembly automatically controls the air pipe connector 5 to switch from the closed to the open state, eliminating the need for manual operation of the valve and manual connection of the vacuum pump. This saves manpower and improves the efficiency of changing glue cans. On the other hand, the filter membrane 8 prevents glue from escaping from the cavity inside the glue can, preventing the glue pump from running dry and thus avoiding the need for re-venting, further accelerating the efficiency of changing glue cans.

[0041] In addition to the automatic inflation and deflation device described above, this utility model also provides a glue coating device that includes the automatic inflation and deflation device disclosed in the above embodiments. For the structure of other parts of the glue coating device, please refer to the prior art, which will not be described in detail here.

[0042] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. An automatic inflation / deflation device, characterized in that, include: A pressure plate, wherein the interior of the pressure plate is provided with a cavity, and the cavity is connected to the interior of the glue barrel; A filling and venting assembly is symmetrically arranged on both sides of the pressure plate, and the filling and venting assembly includes: A mounting plate is connected to the pressure plate. An air pipe connector is provided on the mounting plate. The first end of the air pipe connector is connected to the cavity, and the second end of the air pipe connector is connected to a vacuum pump. The control system controls the start and stop of the vacuum pump and the opening and closing of the air pipe joint through a solenoid valve assembly; A filter membrane is disposed on the inner side of the mounting plate. The filter membrane is used to allow air to pass through the glue bucket normally and to prevent glue from being discharged from the cavity in the glue bucket.

2. The automatic inflation / deflation device according to claim 1, characterized in that, A sealing ring is provided on the outer peripheral side of the lower end of the pressure plate, and the outer side wall of the sealing ring is attached to the inner side wall of the glue bucket.

3. The automatic inflation / deflation device according to claim 1, characterized in that, The pressure plate has an assembly groove on its side, which is adapted to the mounting plate.

4. An automatic inflation / deflation device according to claim 3, characterized in that, The mounting plate has several partitions on its inner side, and each partition has a filter membrane attached to its side near the cavity.

5. An automatic inflation / deflation device according to claim 4, characterized in that, The surface of the partition is arrayed with several through holes.

6. An automatic inflation / deflation device according to claim 5, characterized in that, The mounting plate has a mating groove on its inner side, which is connected to the air pipe connector. The mating groove and the partition plate form a ventilation chamber.

7. An automatic inflation / deflation device according to claim 4, characterized in that, A sealing gasket is provided on the side of the assembly groove, and the side of the sealing gasket opposite to the assembly groove is attached to the partition.

8. An automatic inflation / deflation device according to any one of claims 1 and 7, characterized in that, The top of the pressure plate is connected to a glue injection pump, which is used to deliver glue from the glue bucket to the glue application valve.

9. A glue-applying device, characterized in that, The automatic inflation / deflation device includes any one of claims 1-8.

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