Automatic sealing gun for blind rivet with adhesive

Abstract

The utility model relates to a plugging gun, especially to a automatic plugging gun of core-pulling rivet with glue. It can realize automatic wire feeding, automatic glue coating and automatic cutting after plugging, greatly saves the manual cost and simplifies the plugging process. The wire feeding unit includes a driving mechanism and a conveying wheel set, the driving mechanism drives the conveying wheel set to convey the aluminum wire, the conveying wheel set includes an upper conveying wheel and a lower conveying wheel arranged in an upper-lower mode and sharing the same axis, the aluminum wire enters the conveying wheel set through the wire inlet pipe and is output through the wire outlet pipe. The glue coating unit includes a glue storage barrel and a glue bin, the glue storage barrel drives the glue to be conveyed to the glue bin through air pressure, and the glue bin is arranged on the conveying path of the aluminum wire, so that the aluminum wire is coated with glue during conveying. The wire cutting unit includes a pneumatic cutting mechanism, the cutting jaws of the pneumatic cutting mechanism are arranged on the side of the wire outlet pipe away from the wire inlet pipe, and are used for cutting the aluminum wire after coating.

Description

Technical Field

[0001] This utility model relates to sealing guns, and more particularly to an automatic sealing gun with adhesive-coated core-pulling rivets. Background Technology

[0002] During the assembly of external equipment, rivets are typically used for securing the equipment to ensure structural stability. However, the presence of rivet holes exposes the equipment to the risk of rainwater leakage, which can severely impact its normal operation and lifespan. Therefore, effectively sealing the rivet holes is crucial for ensuring the waterproof performance of external equipment.

[0003] Currently, the industry mostly uses aluminum wire with adhesive to seal rivet holes in external equipment. However, in actual production, sealing rivet holes with aluminum wire relies entirely on manual operation. The specific operation process is cumbersome, requiring operators to manually pick up the material, apply adhesive to the aluminum wire, and, during assembly, two people are needed: one to seal the rivet hole and the other to cut off excess aluminum wire. This process needs to be repeated.

[0004] This traditional manual operation method has many drawbacks. It is slow to assemble, inefficient, and involves a heavy and repetitive workload. This not only extends the production cycle but also wastes a lot of labor costs, making it difficult to meet the needs of modern high-efficiency production. Summary of the Invention

[0005] This utility model addresses the shortcomings of existing technologies by providing an automatic sealing gun with adhesive for core-pulling rivets.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic sealing gun for core-pulling rivets with adhesive, comprising a wire feeding unit, an adhesive application unit, and a wire cutting unit. The wire feeding unit includes a drive mechanism and a conveying wheel assembly. The drive mechanism drives the conveying wheel assembly to convey aluminum wire. The conveying wheel assembly includes an upper conveying wheel and a lower conveying wheel arranged vertically and coaxially. The aluminum wire enters through the wire inlet pipe, passes through the conveying wheel assembly, and is then output through the wire outlet pipe.

[0007] The adhesive coating unit includes an adhesive storage tank and an adhesive hopper. The adhesive storage tank is driven by air pressure to transport the adhesive liquid to the adhesive hopper. The adhesive hopper is set on the conveying path of the aluminum wire so that the surface of the aluminum wire is coated with adhesive liquid during the conveying process.

[0008] The wire cutting unit includes a pneumatic cutting mechanism. The cutting jaws of the pneumatic cutting mechanism are located on the side of the wire outlet tube away from the wire inlet tube, and are used to cut the coated aluminum wire.

[0009] Furthermore, the driving mechanism includes a motor and a gearbox, with the output shaft of the motor coaxially connected to the input shaft of the gearbox; the output end of the gearbox is connected to the axle of the lower conveyor wheel to drive the lower conveyor wheel to rotate; the upper conveyor wheel is rotatably mounted on the end of the pressure handle, which is horizontally positioned and connected to the gearbox; and the upper conveyor wheel presses the aluminum wire and forms a clamping conveying channel with the lower conveyor wheel.

[0010] Furthermore, the glue storage tank is provided with a pneumatic input port, which is connected to a filter pressure regulating valve through an air inlet pipe to receive compressed gas to drive the glue liquid output; the glue liquid output port of the glue storage tank is sealed to the top of the glue hopper through a glue outlet pipe to form a glue liquid delivery channel; and the glue storage tank is connected to a connecting seat through a glue tank fixing clamp, and the connecting seat is fixed on the gearbox body.

[0011] Furthermore, the glue chamber is connected to the gearbox body via a glue chamber bracket. The glue chamber is provided with a through hole for the aluminum wire to pass through. After being coated with glue, the aluminum wire is led out to the wire cutting unit through the wire outlet tube.

[0012] Furthermore, the wire outlet tube is installed on the side wall of the glue tank.

[0013] Furthermore, the pneumatic cutting machine is connected to the connecting plate, and the connecting plate is fixed to the gearbox of the wire feeding unit via a connecting plate mounting flange.

[0014] Furthermore, the cutting jaws are aligned with the wire exit end of the wire exit tube to cut the aluminum wire after it reaches a set length.

[0015] Furthermore, it also includes an air circuit control unit, which comprises two independently controlled air circuits. The first air circuit includes an air source, a three-piece pressure gauge set, a solenoid directional valve, and a pneumatic shear cylinder of a pneumatic cutting mechanism connected in sequence. The second air circuit includes an air source, a pressure gauge, a solenoid directional valve, and a speed control valve connected in sequence. The speed control valve is connected to a filter pressure regulating valve, which is connected to a glue storage tank, and is used to control the glue delivery pressure.

[0016] Furthermore, the sealing method based on the self-sealing gun with adhesive and blind rivets includes the following steps:

[0017] S1. Start the wire feeding unit. The motor drives the lower conveyor wheel to rotate through the gearbox. It works with the upper conveyor wheel to clamp and feed the aluminum wire, so that the aluminum wire is transported from the wire inlet tube to the wire outlet tube through the conveyor wheel assembly.

[0018] S2. The glue storage tank of the glue coating unit delivers the glue liquid to the glue hopper through the glue outlet pipe under air pressure. The aluminum wire is coated with glue liquid as it passes through the glue hopper.

[0019] S3. The coated aluminum wire is fed to the rivet hole to be sealed and inserted into the rivet hole to complete the sealing.

[0020] S4. After the sealing is completed, the pneumatic cutting mechanism of the wire cutting unit is activated to cut off the excess part of the aluminum wire through the cutting jaws.

[0021] Furthermore, in step S1, the output length of the aluminum wire is controlled by adjusting the rotation arc length of the motor through the controller; in step S2, the air pressure of the glue storage tank is regulated by the filter pressure regulating valve so that the glue liquid is output at a constant pressure.

[0022] Compared with the prior art, this utility model has the following advantages.

[0023] This invention enables automatic wire feeding, automatic adhesive application, and automatic cutting after sealing, greatly simplifying the sealing process. Furthermore, this sealing gun is highly flexible, allowing for the installation of aluminum wires of unlimited length. In actual operation, only one person is needed to complete the entire sealing process, significantly improving sealing efficiency and greatly saving labor costs. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The scope of protection of the present invention is not limited to the following description.

[0025] Figure 1 This is a front view of the embodiment of the self-sealing gun with adhesive core-pulling rivets.

[0026] Figure 2 This is a top view of the embodiment of the self-sealing gun with adhesive-coated core-pulling rivets.

[0027] Figure 3 This is a right view of the automatic sealing gun with adhesive and pop rivets in the embodiment.

[0028] Figure 4 This is a rear view of the automatic sealing gun with adhesive and core-pulling rivets in the embodiment.

[0029] Figure 5 This is a rear view of the wire feeding unit in the embodiment.

[0030] Figure 6 This is a front view of the wire feeding unit in the embodiment.

[0031] Figure 7 This is a schematic diagram of the air circuit control unit in the embodiment.

[0032] Figure 8 This is the electrical schematic diagram of the controller in the embodiment.

[0033] In the diagram, 1. Wire feeding unit; 2. Wire cutting unit; 3. Glue coating unit; 4. Aluminum wire; 5. Three-piece pressure gauge set; 6. Pressure gauge; 7. Pneumatic shear cylinder; 8. Air source; 101. Motor; 102. Gearbox; 106. Wire outlet pipe; 107. Upper conveyor wheel; 108. Pressure handle; 109. Wire inlet pipe; 110. Lower conveyor wheel; 201. Pneumatic cutter; 202. Cutting jaws; 203. Connecting plate; 204. Connecting plate mounting flange; 301. Filter pressure reducing valve; 302. Air inlet pipe; 303. Glue storage tank; 304. Glue outlet pipe; 305. Glue tank fixing clamp; 306. Connecting seat; 307. Glue tank bracket; 308. Glue tank. Detailed Implementation

[0034] To make the objectives, technical solutions, and beneficial effects of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0035] like Figure 1-7 As shown, the automatic sealing gun for blind rivets with adhesive includes a wire feeding unit 1, an adhesive application unit 3, and a wire cutting unit 2. The wire feeding unit includes a drive mechanism and a conveyor wheel assembly. The drive mechanism drives the conveyor wheel assembly to convey aluminum wire. The conveyor wheel assembly includes an upper conveyor wheel 107 and a lower conveyor wheel 110 arranged vertically and coaxially. The aluminum wire 4 enters through the wire inlet pipe 109 and passes through the conveyor wheel assembly, and then exits through the wire outlet pipe 106. The adhesive application unit includes an adhesive storage tank 303 and an adhesive hopper 308. The adhesive storage tank 303 is driven by air pressure to convey adhesive to the adhesive hopper 308. The adhesive hopper 308 is set on the conveying path of the aluminum wire 4, so that the surface of the aluminum wire 4 is coated with adhesive during the conveying process. The wire cutting unit includes a pneumatic cutting mechanism 201. The cutting jaws 202 of the pneumatic cutting mechanism 201 are set on the side of the wire outlet pipe 106 away from the wire inlet pipe 109, and are used to cut the coated aluminum wire 4. The self-sealing gun with adhesive for blind rivets can replace traditional manual assembly, automating the assembly process for detailed tasks, greatly improving work efficiency and saving labor costs.

[0036] Preferably, the drive mechanism includes a motor 101 and a reduction gearbox 102. The output shaft of the motor 101 is coaxially connected to the input shaft of the reduction gearbox 102. The output end of the reduction gearbox 102 is connected to the axle of the lower conveyor wheel 110 to drive the lower conveyor wheel 110 to rotate. The upper conveyor wheel 107 is rotatably mounted on the end of the pressure handle 108, which is horizontally positioned and connected to the reduction gearbox. The upper conveyor wheel 107 presses the aluminum wire 4 and forms a clamping conveying channel with the lower conveyor wheel 110. The clamping conveying channel ensures the stability of the aluminum wire conveying. The wire inlet tube 109 and wire outlet tube 106 precisely guide the aluminum wire path, avoiding deviation or jamming and improving the wire feeding accuracy. This structure replaces manual wire feeding, realizes automated conveying, significantly improves work efficiency, and reduces human operation errors.

[0037] Example 1: The upper conveyor wheel 107 is detachably connected to the pressure handle, and the middle part of the pressure handle 108 is hinged to the top of the gearbox through a hinge shaft. The upper conveyor wheel 107 is made of rubber. Because rubber has elastic deformation, it can be compatible with pressing aluminum wires of different diameters within a certain range.

[0038] Preferably, the glue storage tank 303 is equipped with a pneumatic inlet, which is connected to a filter pressure regulating valve 301 via an air inlet pipe 302 to receive compressed gas to drive the glue output. The glue output port of the glue storage tank 303 is sealed to the top of the glue container 308 via a glue outlet pipe 304, forming a glue delivery channel. The glue storage tank 303 is connected to a connecting seat 306 via a glue tank fixing clamp 305, and the connecting seat is fixed to the gearbox 102. The glue container 308 is fixed to the gearbox by a bracket, and its integrated design with the wire outlet pipe shortens the aluminum wire delivery path and reduces the risk of glue dripping. The through-hole structure ensures that the aluminum wire 4 passes through in the center, ensuring precise glue application. This layout optimizes space utilization and improves the overall compactness of the equipment. Furthermore, the through-hole structure can be equipped with a sealing ring for sealing.

[0039] Example 2: A liquid level sensor is installed on the inner wall of the glue storage tank 7 to monitor the remaining glue level and connect to the controller 8. When the glue level is insufficient, an alarm is triggered.

[0040] Preferably, the glue tank 308 is connected to the gearbox 102 via a glue tank bracket 307. The glue tank 308 has a through hole for the aluminum wire 4 to pass through. After being coated with glue, the aluminum wire 4 is led out to the wire cutting unit through the wire outlet tube 106. The wire outlet tube 106 is installed on the side wall of the glue tank 308.

[0041] Preferably, the pneumatic cutter 201 is connected to the connecting plate 203, which is fixed to the gearbox 102 of the wire feeding unit via the connecting plate mounting flange 204. The cutting jaws 202 of the pneumatic cutter 201 are aligned with the wire outlet end of the wire outlet tube 106 to cut the aluminum wire 4 after it reaches the set length.

[0042] Preferably, it includes an air circuit control unit, which includes two independently controlled air circuits. The first air circuit includes an air source 8, a pressure gauge set 5, a solenoid directional valve 1 connected in sequence, and a pneumatic shear cylinder 7 of a pneumatic cutting mechanism 201 connected thereto. The second air circuit includes an air source 8, a pressure gauge 6, a solenoid directional valve 2 connected in sequence, and a speed control valve connected thereto. The speed control valve is connected to a filter pressure regulating valve 301, which is connected to a glue storage tank 303, for controlling the glue delivery pressure.

[0043] Preferably, the sealing method based on the automatic sealing gun with adhesive and pop rivets includes the following steps:

[0044] S1. Start the wire feeding unit 1. The motor 101 drives the lower conveyor wheel 110 to rotate through the reduction gearbox 102. It cooperates with the upper conveyor wheel 107 to clamp and feed the aluminum wire 4, so that the aluminum wire is fed from the wire inlet tube 109 through the conveyor wheel group to the wire outlet tube 106. The output length of the aluminum wire 4 is controlled by adjusting the rotation arc length of the motor 101 by the controller.

[0045] S2, the glue storage tank 303 of the glue coating unit 3 is driven by air pressure to transport the glue liquid through the glue outlet pipe 304 to the glue hopper 308. When the aluminum wire 4 passes through the glue hopper 308, its surface is coated with glue liquid. The air pressure of the glue storage tank 303 is regulated by the filter pressure regulating valve 301 so that the glue liquid is output at a constant pressure.

[0046] S3. The coated aluminum wire 4 is conveyed to the rivet hole to be sealed and inserted into the rivet hole to complete the sealing.

[0047] S4. After the sealing is completed, the pneumatic cutting mechanism 201 of the wire cutting unit 2 is activated, and the excess part of the aluminum wire 4 is cut off by the cutting jaws 202.

[0048] Example 3: Working process and working principle of the automatic sealing gun with adhesive core-pulling rivets:

[0049] 1. The aluminum wire 4 is conveyed to the assembly position by the wire feeding unit 1. The wire feeding unit 1 is powered by the motor 101, which causes the upper conveyor wheel 107 and the lower conveyor wheel 110 to rotate forward and drive the aluminum wire 4 to the assembly position.

[0050] The automatic sealing gun for blind rivets with adhesive can adjust the output length of aluminum wire 4 by adjusting the rotation arc length of motor 101 through the controller, ensuring that the output length of aluminum wire 4 can meet different assembly requirements and achieve the purpose of effectively sealing the rivet hole.

[0051] 2. The sealant is automatically applied to the surface of the aluminum wire 4 via the adhesive application unit 3, and then carried to the assembly position along with the aluminum wire 4 for sealing. The automatic sealing gun with adhesive for the pull-button rivet is connected to an external air source and works in conjunction with a solenoid valve group, a filter pressure regulating valve 301, a controller, and a power control box to filter and control the gas flow. The sealant in the storage tank 303 is delivered to the surface of the aluminum wire 4 via air pressure through delivery pipes (inlet pipe 302 and outlet pipe 304). During this process, the controller regulates the air pressure through the filter pressure regulating valve 301 to ensure that the pneumatic pressure provides power within a reliable and effective range. The sealant is applied to the surface of the aluminum wire 4 before assembly, preparing it for sealing. Figure 8 As shown, the controller is a motion logic controller.

[0052] III. Assembly Process: The aluminum wire 4, coated with adhesive, is fed into the rivet hole to be sealed. Excess wire is cut off by the cutting jaws 202 of the wire-cutting unit 2, thus sealing the rivet hole with adhesive-coated aluminum wire 4. Alternatively, the output aluminum wire 4 with adhesive is placed at the rivet hole to be sealed. Pressing the button switch activates the controller, initiating the feeding and adhesive application signals for the aluminum wire 4. The adhesive-coated aluminum wire 4 is then fed into the rivet hole. After sealing is complete, the cutting jaws 202 of the wire-cutting unit 2 receive the signal and cut off the excess aluminum wire 4, ending the aluminum wire 4 sealing process.

[0053] IV. The sealing gun is pneumatically driven to provide the power for cutting and applying adhesive. The sealing gun sends feed, adhesive application, and cutting signals via a push-button switch, causing the aluminum wire 4 to move forward and automatically cut at the designated position. The assembly process can be repeated via the push-button switch.

[0054] This utility model of an automatic blind rivet sealing gun with adhesive can automatically deliver aluminum wire, apply adhesive, and cut off the wire after sealing, thus completing the sealing process. Furthermore, the sealing gun can be fitted with aluminum wire of unlimited length; different lengths of aluminum wire can also be replaced according to actual needs. One person can complete the sealing process, greatly improving sealing efficiency, saving significant labor costs, and achieving the goal of replacing traditional manual operations with machinery.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "preferred embodiment," "detailed description," or "preferred embodiment," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Therefore, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of this utility model.

Claims

1. A self-sealing gun for blind rivet with adhesive, comprising a wire feeding unit (1), an adhesive applying unit (3) and a wire cutting unit (2); characterized in that, The wire feeding unit includes a drive mechanism and a conveyor wheel assembly. The drive mechanism drives the conveyor wheel assembly to convey aluminum wire. The conveyor wheel assembly includes an upper conveyor wheel (107) and a lower conveyor wheel (110) arranged vertically and coaxially. The aluminum wire (4) enters through the wire inlet pipe (109) and passes through the conveyor wheel assembly, and is then output through the wire outlet pipe (106). The glue coating unit includes a glue storage tank (303) and a glue container (308). The glue storage tank (303) is driven by air pressure to transport the glue liquid to the glue container (308). The glue container (308) is set on the conveying path of the aluminum wire (4) so ​​that the surface of the aluminum wire (4) is coated with glue liquid during the conveying process. The wire cutting unit includes a pneumatic cutting mechanism (201), and the cutting jaws (202) of the pneumatic cutting mechanism (201) are located on the side of the wire outlet tube (106) away from the wire inlet tube (109) for cutting the coated aluminum wire (4).

2. The automatic sealing gun with adhesive for blind rivets according to claim 1, characterized in that, The driving mechanism includes a motor (101) and a gearbox (102). The output shaft of the motor (101) is coaxially connected to the input shaft of the gearbox (102). The output end of the gearbox (102) is connected to the axle of the lower conveyor wheel (110) to drive the lower conveyor wheel (110) to rotate. The upper conveyor wheel (107) is rotatably mounted on the end of the pressure handle (108). The pressure handle (108) is horizontally mounted and connected to the gearbox. The upper conveyor wheel (107) presses the aluminum wire (4) and forms a clamping conveying channel with the lower conveyor wheel (110).

3. The automatic sealing gun with adhesive for blind rivets according to claim 2, characterized in that, The glue storage tank (303) is provided with a pressure input port, which is connected to a filter pressure regulating valve (301) through an air inlet pipe (302) to receive compressed gas to drive the glue liquid output; the glue liquid output port of the glue storage tank (303) is sealed to the top of the glue tank (308) through a glue outlet pipe (304) to form a glue liquid delivery channel; and the glue storage tank (303) is connected to the connecting seat (306) through a glue tank fixing clamp (305), and the connecting seat is fixed on the gearbox body (102).

4. The automatic sealing gun with adhesive for blind rivets according to claim 2, characterized in that, The glue tank (308) is connected to the gearbox body (102) via the glue tank bracket (307). The glue tank (308) is provided with a through hole for the aluminum wire (4) to pass through. After being coated with glue, the aluminum wire (4) is led out to the wire cutting unit through the wire outlet tube (106).

5. The automatic sealing gun with adhesive for blind rivets according to claim 1, characterized in that, The wire outlet tube (106) is installed on the side wall of the glue tank (308).

6. The automatic sealing gun with adhesive for blind rivets according to claim 1, characterized in that, The pneumatic cutting mechanism (201) is connected to the connecting plate (203), and the connecting plate (203) is fixed to the gearbox (102) of the wire feeding unit through the connecting plate mounting flange (204).

7. The automatic sealing gun with adhesive for blind rivets according to claim 1, characterized in that, The cutting jaws (202) are aligned with the wire outlet end of the wire outlet tube (106) to cut the aluminum wire (4) after it reaches a set length.

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