Self-plugging rivet glue-carrying automatic plugging gun

Abstract

The invention relates to a plugging gun, in particular to an automatic plugging gun for a self-plugging rivet with glue. According to the aluminum wire plugging device, automatic wire discharging and automatic gluing of aluminum wires in the plugging process and automatic cutting-off after plugging can be achieved, the labor cost is greatly saved, and the plugging process is simplified. Comprising a wire feeding unit, a gluing unit and a wire shearing unit, the wire feeding unit comprises a driving mechanism and a conveying wheel set, the driving mechanism drives the conveying wheel set to convey aluminum wires, the conveying wheel set comprises an upper conveying wheel and a lower conveying wheel which are arranged up and down and are collinear in axis, and the aluminum wires enter from a wire inlet pipe, penetrate through the conveying wheel set and then are output from a wire outlet pipe. The gluing unit comprises a glue storage barrel and a glue bin, the glue storage barrel conveys glue liquid to the glue bin through pneumatic driving, the glue bin is arranged on the conveying path of the aluminum wires, and the surfaces of the aluminum wires are coated with the glue liquid in the conveying process. The wire cutting unit comprises a pneumatic cutting mechanism, and a cutting jaw of the pneumatic cutting mechanism is arranged on the side, away from the wire inlet pipe, of the wire outlet pipe and used for cutting off the glued aluminum wires.

Description

Technical Field

[0001] The invention relates to a sealing gun, in particular to an automatic sealing gun for blind rivets with glue. Background Art

[0002] During the assembly of extravehicular equipment, rivets are often used to ensure structural stability. However, the presence of rivet holes can expose the equipment to the risk of rainwater leakage, which can severely impact its normal operation and service life. Therefore, effectively sealing these rivet holes is crucial for ensuring the waterproof performance of extravehicular equipment.

[0003] Currently, the industry's most common method for sealing rivet holes in extravehicular equipment is to use aluminum wire adhesive. However, in practice, sealing rivet holes with aluminum wire is entirely manual. This cumbersome process requires not only manual material removal and adhesive application, but also the coordination of two people during assembly: one to seal the holes and the other to cut off excess wire, a process that must be repeated.

[0004] This traditional manual operation method has many disadvantages. Its assembly speed is slow, its efficiency is low, the workload is heavy and the repetitiveness is high. It not only prolongs the production cycle, but also causes a large amount of waste of labor costs, making it difficult to meet the needs of modern efficient production. Summary of the Invention

[0005] The present invention aims to solve the defects of the prior art and provides an automatic sealing gun for blind rivets with glue.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a blind rivet automatic sealing gun with glue, comprising a wire feeding unit, a glue coating unit and a wire cutting unit. The wire feeding unit comprises a driving mechanism and a conveying wheel group. The driving mechanism drives the conveying wheel group to convey aluminum wire. The conveying wheel group comprises an upper conveying wheel and a lower conveying wheel which are arranged up and down and have the same axis. The aluminum wire enters from the wire inlet tube and passes through the conveying wheel group, and is then output from the wire outlet tube.

[0007] The glue coating unit includes a glue storage barrel and a glue silo. The glue storage barrel is driven by air pressure to transport the glue liquid to the glue silo. The glue silo is arranged on the conveying path of the aluminum wire so that the surface of the aluminum wire is coated with glue during the conveying process.

[0008] The wire cutting unit comprises a pneumatic cutting mechanism, the cutting jaws of which are arranged on a side of the wire outlet pipe away from the wire inlet pipe and are used for cutting the aluminum wire after being coated with glue.

[0009] Furthermore, the driving mechanism includes a motor and a reduction gear box, the output shaft of the motor is coaxially connected to the input shaft of the reduction gear box; the output end of the reduction gear box is connected to the wheel axle of the lower conveying wheel to drive the lower conveying wheel to rotate; the upper conveying wheel is rotatably set at the end of the pressure handle, the pressure handle is horizontally set and connected to the reduction gear box; and the upper conveying wheel presses the aluminum wire and forms a clamping conveying channel with the lower conveying wheel.

[0010] Furthermore, the glue storage barrel is provided with an air pressure input port, which is connected to a filter pressure regulating valve through an air inlet pipe and is used to receive compressed gas to promote the output of the glue liquid; the glue liquid output port of the glue storage barrel is sealedly connected to the top of the glue bin through a glue outlet pipe to form a glue liquid delivery channel; and the glue storage barrel is connected to the connecting seat through a glue barrel fixing clamp, and the connecting seat is fixed on the reduction gear box body.

[0011] Furthermore, the glue bin is connected to the reduction gear box through a glue bin bracket. The glue bin is provided with a through hole for the aluminum wire to pass through. After being coated with glue, the aluminum wire is guided out of the wire outlet pipe to the wire cutting unit.

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

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

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

[0015] Furthermore, it includes an air circuit control unit, which comprises two independently controlled air circuits. The first air circuit includes an air source, a regulating pressure gauge, a first electromagnetic reversing valve, and a pneumatic shear cylinder of a pneumatic shearing mechanism connected thereto. The second air circuit includes an air source, a regulating pressure gauge, a second electromagnetic reversing valve, and a speed regulating valve connected thereto, which is connected to a filter pressure regulating valve, which is connected to a glue storage tank for controlling the glue delivery pressure.

[0016] Furthermore, the sealing method based on the blind rivet automatic sealing gun with glue includes the following steps: S1. Start the wire feeding unit. The motor drives the lower conveying wheel to rotate through the reduction gear box, and cooperates with the upper conveying wheel to clamp and convey the aluminum wire, so that the aluminum wire is conveyed from the wire inlet tube to the wire outlet tube through the conveying wheel group.

[0017] S2. The glue storage barrel of the glue coating unit is driven by air pressure to transport the glue liquid to the glue bin through the glue outlet pipe. When the aluminum wire passes through the glue bin, the surface is coated with glue liquid.

[0018] S3. The glue-coated aluminum wire is transported to the position of the rivet hole to be sealed, and inserted into the rivet hole to complete the sealing.

[0019] S4. After the plugging is completed, the pneumatic cutting mechanism of the wire cutting unit is actuated to cut off the excess portion of the aluminum wire through the shearing jaws.

[0020] Furthermore, in step S1, the controller adjusts the rotation arc length of the motor to control the output length of the aluminum wire; in step S2, the air pressure of the glue storage barrel is regulated by the filter pressure regulating valve so that the glue liquid is output at a constant pressure.

[0021] Compared with the prior art, the present invention has beneficial effects.

[0022] The present invention enables automatic wire feeding and glue application during the plugging process, as well as automatic wire cutting after plugging, greatly simplifying the plugging process. Furthermore, the plugging gun offers high flexibility, allowing for the installation of aluminum wire of unlimited lengths. In practice, only one person is required to complete the entire plugging process, significantly improving plugging efficiency and significantly saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is 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.

[0024] Figure 1 It is a front view of an automatic sealing gun for blind rivets with glue according to an embodiment.

[0025] Figure 2 It is a top view of an automatic blind rivet sealing gun with glue in an embodiment.

[0026] Figure 3 It is a right side view of the automatic sealing gun for blind rivets with glue in the embodiment.

[0027] Figure 4 It is a rear view of the automatic sealing gun for blind rivets with glue in the embodiment.

[0028] Figure 5 2 is a rear view of the wire feeding unit of the embodiment.

[0029] Figure 6 2 is a front view of the wire feeding unit of the embodiment.

[0030] Figure 7 1 is a schematic diagram of the gas path control unit of the embodiment.

[0031] Figure 8 1 is an electrical schematic diagram of the controller of the embodiment.

[0032] In the figure, 1. Wire feeding unit; 2. Wire cutting unit; 3. Gluing unit; 4. Aluminum wire; 5. Three-piece set of regulating pressure gauge; 6. Regulating pressure gauge; 7. Pneumatic shear cylinder; 8. Air source; 101. Motor; 102. Reducer; 106. Wire outlet tube; 107. Upper conveyor wheel; 108. Pressing handle; 109. Wire inlet tube; 110. Lower conveyor wheel; 201. Pneumatic cutting machine; 202. Cutting jaws; 203. Connecting plate; 204. Connecting plate mounting flange; 301. Filter pressure reducing valve; 302. Air inlet pipe; 303. Glue storage barrel; 304. Glue outlet hose; 305. Glue barrel fixing clamp; 306. Connecting seat; 307. Glue silo bracket; 308. Glue silo. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and beneficial effects of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0034] like Figure 1-7 As shown, the automatic sealing gun for blind rivets with glue includes a wire feeding unit 1, a gluing unit 3 and a wire cutting unit 2; the wire feeding unit includes a driving mechanism and a conveying wheel group, the driving mechanism drives the conveying wheel group to convey the aluminum wire, the conveying wheel group includes an upper conveying wheel 107 and a lower conveying wheel 110 arranged up and down and with the same axis, the aluminum wire 4 enters and passes through the conveying wheel group from the wire inlet tube 109, and is then output from the wire outlet tube 106; the gluing unit includes a glue storage barrel 303 and a glue bin 308, the glue storage barrel 303 is driven by air pressure to convey the glue liquid to the glue bin 308, the glue bin 308 is arranged on the conveying path of the aluminum wire 4, so that the surface of the aluminum wire 4 is coated with glue 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 arranged on the side of the wire outlet tube 106 away from the wire inlet tube 109, for cutting the aluminum wire 4 after gluing. The automatic sealing gun for blind rivets with glue can replace traditional manual assembly, and can complete the assembly process of detailed work automation, greatly improving work efficiency and saving labor costs.

[0035] Preferably, the drive mechanism includes a motor 101 and a reduction gear box 102, wherein the output shaft of the motor 101 is coaxially connected to the input shaft of the reduction gear box 102; the output end of the reduction gear box 102 is connected to the axle of the lower conveying wheel 110 to drive the lower conveying wheel 110 to rotate; the upper conveying wheel 107 is rotatably arranged at the end of the pressure handle 108, which is horizontally arranged and connected to the reduction gear box; and the upper conveying wheel 107 presses the aluminum wire 4 and forms a clamping conveying channel with the lower conveying wheel 110. The setting of the clamping conveying channel ensures the stability of the aluminum wire transportation. The setting of the wire inlet tube 109 and the wire outlet tube 106 allows the aluminum wire path to be accurately guided, 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 manual operation errors.

[0036] Example 1: The upper conveying wheel 107 is detachably connected to the pressing handle, and the middle part of the pressing handle 108 is hinged to the top of the reduction gear box through a hinge shaft. The upper conveying wheel 107 is made of rubber. Since rubber has elastic deformation, it can be compatible with aluminum wires of different diameters within a certain range.

[0037] Preferably, the glue storage barrel 303 is provided with an air pressure input port, which is connected to the filter pressure regulating valve 301 through the air inlet pipe 302, and is used to receive compressed gas to promote the output of glue liquid; the glue liquid output port of the glue storage barrel 303 is sealed and connected to the top of the glue bin 308 through the glue outlet pipe 304, forming a glue liquid delivery channel; and the glue storage barrel 303 is connected to the connecting seat 306 through the glue barrel fixing clamp 305, and the connecting seat is fixed on the reduction gear box body 102. The glue bin 308 is fixed to the reduction gear box body through a bracket, and the 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 the center and the glue coating position is accurate. This layout optimizes space utilization and improves the overall compactness of the equipment. And the through-hole structure can be provided with a sealing ring for sealing.

[0038] Embodiment 2: A liquid level sensor is provided on the inner wall of the glue storage barrel 7 for monitoring the glue liquid remaining amount and connected to the controller 8 signal, triggering an alarm prompt when the glue liquid is insufficient.

[0039] Preferably, the glue bin 308 is connected to the reduction gear box 102 via the glue bin bracket 307 . The glue bin 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 guided to the wire cutting unit through the wire outlet pipe 106 . The wire outlet pipe 106 is installed on the side wall of the glue bin 308 .

[0040] Preferably, the pneumatic cutter 201 is connected to a connecting plate 203, which is fixed to the reduction gear box 102 of the wire feeding unit via a 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 a set length.

[0041] Preferably, it includes an air circuit control unit, which includes two independently controlled air circuits, wherein the first air circuit includes an air source 8, a three-piece regulating pressure gauge set 5, an electromagnetic reversing valve 1, and a pneumatic shear cylinder 7 of a pneumatic cutting mechanism 201 connected thereto in sequence; the second air circuit includes an air source 8, a regulating pressure gauge 6, an electromagnetic reversing valve 2, and a speed regulating valve connected thereto in sequence, the speed regulating valve is connected to the filter pressure regulating valve 301, and the filter pressure regulating valve 301 is connected to the glue storage barrel 303 for controlling the glue delivery pressure.

[0042] Preferably, the sealing method based on the blind rivet automatic sealing gun with glue comprises the following steps: S1. Start the wire feeding unit 1. The motor 101 drives the lower conveying wheel 110 to rotate through the reduction gear box 102, and cooperates with the upper conveying wheel 107 to clamp and convey the aluminum wire 4, so that the aluminum wire is conveyed from the wire inlet tube 109 to the wire outlet tube 106 through the conveying wheel group; wherein, the controller adjusts the rotation arc length of the motor 101 to control the output length of the aluminum wire 4.

[0043] S2, the glue storage barrel 303 of the glue coating unit 3 transports the glue liquid to the glue bin 308 through the glue outlet pipe 304 under air pressure, and the surface of the aluminum wire 4 is coated with glue liquid when passing through the glue bin 308; wherein, the air pressure of the glue storage barrel 303 is regulated by the filter pressure regulating valve 301 so that the glue liquid is output at a constant pressure.

[0044] S3, transporting the glue-coated aluminum wire 4 to the position of the rivet hole to be sealed, and inserting it into the rivet hole to complete the sealing.

[0045] S4. After the plugging is completed, the pneumatic cutting mechanism 201 of the wire cutting unit 2 is activated to cut off the excess part of the aluminum wire 4 through the cutting jaws 202.

[0046] Example 3: Working process and working principle of the automatic blind rivet sealing gun with glue: 1. The aluminum wire 4 is delivered to the assembly position through the wire feeding unit 1. The wire feeding unit 1 is powered by the motor 101, which causes the upper delivery wheel 107 and the lower delivery wheel 110 to rotate forward to drive the aluminum wire 4 to the assembly position.

[0047] The automatic blind rivet sealing gun with glue can adjust the output length of the aluminum wire 4 by adjusting the rotation arc length of the motor 101 through the controller, ensuring that the output length of the aluminum wire 4 can meet different assembly requirements and achieve the purpose of effectively sealing the nail hole.

[0048] Second, the sealing glue liquid can be automatically applied to the surface of the aluminum wire 4 through the glue coating unit 3, and then the aluminum wire 4 is transported to the assembly position to prepare for sealing with glue. The automatic sealing gun for blind rivets with glue is connected to the external air source and used in conjunction with the solenoid valve group, the filter pressure regulating valve 301, the controller and the power control box to achieve filtering and control of the gas flow, and rely on the air pressure to transport the sealing glue liquid in the glue storage barrel 303 to the surface of the aluminum wire 4 through the delivery pipe (the air inlet pipe 302 and the glue 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 glue liquid is applied to the surface of the aluminum wire 4 before the aluminum wire 4 is assembled, and preparations are made before sealing the aluminum wire 4. Figure 8 As shown, the controller is a motion logic controller.

[0049] 3. Assembly process: The aluminum wire 4 with the surface fully coated with glue is delivered to the rivet hole to be sealed, and the excess portion is cut off by the shearing jaws 202 of the wire cutting unit 2, thus completing the process of sealing the rivet hole with glue by the aluminum wire 4. That is, the output aluminum wire 4 with glue is placed at the position of the rivet hole to be sealed, and the button switch is pressed to activate the aluminum wire 4 feeding and glue coating signal through the controller, and the aluminum wire 4 with glue is delivered to the rivet hole. After the sealing is completed, the shearing jaws 202 of the wire cutting unit 2 receive the signal to cut off the excess aluminum wire 4, and the aluminum wire 4 sealing process is completed.

[0050] Fourth, the sealing gun can provide cutting and gluing power through pneumatic drive. The sealing gun sends feed signal, gluing and cutting signal through the button switch, so that the aluminum wire 4 moves forward and automatically cuts when it reaches the specified position. The above assembly process can be repeated by pressing the button switch.

[0051] The blind rivet automatic sealing gun with glue can automatically feed the aluminum wire, apply glue, and cut it off after sealing, completing the sealing process. Furthermore, the gun can be used with aluminum wire of unlimited lengths; different lengths can also be changed according to actual conditions. A single person can complete the sealing process, significantly improving sealing efficiency and saving significant labor costs, achieving the goal of replacing traditional manual operations with machinery.

[0052] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "preferred embodiments," "specific implementations," or "preferred implementations" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Therefore, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope defined by the claims of the present invention.

Claims

1. A blind rivet glue automatic sealing gun, comprising a wire feeding unit (1), a glue coating unit (3) and a wire cutting unit (2); characterized in that: The wire feeding unit includes a driving mechanism and a conveying wheel group, wherein the driving mechanism drives the conveying wheel group to convey the aluminum wire, and the conveying wheel group includes an upper conveying wheel (107) and a lower conveying wheel (110) which are arranged above and below and have the same axis. The aluminum wire (4) enters the wire inlet tube (109) and passes through the conveying wheel group, and is then output from the wire outlet tube (106); The glue coating unit comprises a glue storage barrel (303) and a glue bin (308), wherein the glue storage barrel (303) is driven by air pressure to transport the glue liquid to the glue bin (308), and the glue bin (308) is arranged 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 comprises a pneumatic cutting mechanism (201), wherein the cutting jaws (202) of the pneumatic cutting mechanism (201) are arranged on a side of the wire outlet tube (106) away from the wire inlet tube (109) and are used for cutting the aluminum wire (4) after being coated with glue.

2. The automatic blind rivet sealing gun with glue according to claim 1, characterized in that: The driving mechanism comprises a motor (101) and a reduction gear box (102), wherein the output shaft of the motor (101) is coaxially connected to the input shaft of the reduction gear box (102); the output end of the reduction gear box (102) is connected to the wheel shaft of the lower conveying wheel (110) in a transmission manner to drive the lower conveying wheel (110) to rotate; the upper conveying wheel (107) is rotatably arranged at the end of a pressing handle (108), the pressing handle (108) is horizontally arranged and connected to the reduction gear box; and the upper conveying wheel (107) presses the aluminum wire (4) and forms a clamping conveying channel with the lower conveying wheel (110).

3. The automatic blind rivet sealing gun with glue according to claim 2, characterized in that: The glue storage barrel (303) is provided with an air pressure input port, which is connected to the filter pressure regulating valve (301) through the air inlet pipe (302) and is used to receive compressed gas to promote the output of glue liquid; the glue liquid output port of the glue storage barrel (303) is sealed and connected to the top of the glue bin (308) through the glue outlet pipe (304), forming a glue liquid delivery channel; and the glue storage barrel (303) is connected to the connecting seat (306) through the glue barrel fixing clamp (305), and the connecting seat is fixed on the reduction gear box body (102).

4. The automatic blind rivet sealing gun with glue according to claim 2, characterized in that: The glue bin (308) is connected to the reduction gear box (102) via a glue bin bracket (307). The glue bin (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 guided to the wire cutting unit through the wire outlet pipe (106).

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

6. The automatic blind rivet sealing gun with glue according to claim 1, characterized in that: The pneumatic cutter (201) is connected to a connecting plate (203), and the connecting plate (203) is fixed to the reduction gear box (102) of the wire feeding unit via a connecting plate mounting flange (204).

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

8. The automatic blind rivet sealing gun with glue according to claim 3, characterized in that: It also includes an air circuit control unit, which includes two independently controlled air circuits, wherein the first air circuit includes an air source (8), a regulating pressure gauge three-piece set (5), an electromagnetic reversing valve, and a pneumatic shear cylinder (7) of a pneumatic cutting mechanism (201) connected thereto in sequence; the second air circuit includes an air source (8), a regulating pressure gauge (6), an electromagnetic reversing valve, and a speed regulating valve connected thereto in sequence; the speed regulating valve is connected to a filter pressure regulating valve (301), and the filter pressure regulating valve (301) is connected to a glue storage barrel (303) for controlling the glue delivery pressure.

9. The automatic blind rivet sealing gun with glue according to claim 1, characterized in that: The sealing method of the blind rivet automatic sealing gun with glue according to any one of claims 1 to 8 comprises the following steps: S1, start the wire feeding unit (1), the motor (101) drives the lower conveying wheel (110) to rotate through the reduction gear box (102), and cooperates with the upper conveying wheel (107) to clamp and convey the aluminum wire (4), so that the aluminum wire is conveyed from the wire inlet tube (109) to the wire outlet tube (106) through the conveying wheel group; S2, the glue storage barrel (303) of the glue coating unit (3) transports the glue liquid to the glue bin (308) through the glue outlet pipe (304) under air pressure, and the surface of the aluminum wire (4) is coated with glue liquid when passing through the glue bin (308); S3, transporting the glue-coated aluminum wire (4) to the position of the rivet hole to be sealed, and inserting it into the rivet hole to complete the sealing; S4. After the plugging is completed, the pneumatic cutting mechanism (201) of the wire cutting unit (2) is activated to cut off the excess portion of the aluminum wire (4) through the cutting jaws (202).

10. The blocking method according to claim 9, characterized in that: In step S1, the output length of the aluminum wire (4) is controlled by adjusting the motor (101) through the controller; and in step S2, the air pressure of the glue storage barrel (303) is regulated by the filter pressure regulating valve (301) so that the glue liquid is output at a constant pressure.

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