Eccentric thread gluing type polishing machine

Abstract

The utility model discloses an eccentric thread gluing type polishing machine, and relates to the technical field of polishing machines. Comprising a grip, an air inlet connector is installed at the tail end of the grip in a threaded mode, an exhaust hood is sleeved on the air inlet connector, noise reduction cotton is arranged between the exhaust hood and the air inlet connector, an adjuster assembly is arranged on the grip, a pneumatic motor assembly is installed at the head end of the grip in a threaded mode, and a hook-and-loop fastener type polishing disc is installed at the output end of the pneumatic motor assembly. According to the eccentric hook-and-loop fastener type polishing machine, the hook-and-loop fastener type polishing disc and the hook-and-loop fastener type polishing piece are both based on hook-and-loop fastener type design, due to the design, the polishing piece can be firmly bonded to the polishing disc in the using process and can be repeatedly used, the eccentric hook-and-loop fastener type polishing machine is very suitable for scenes needing to be frequently detached and bonded again, and meanwhile due to the handheld design, the polishing effect is good. The grinding and polishing device is suitable for grinding and polishing the surfaces of various small parts and grinding and polishing work in a narrow space through a safety pressing rod type start-stop switch and a 90-degree right-angle elbow.

Description

Technical Field

[0001] The utility model relates to the technical field of polishing machines, in particular to an eccentric snap-fastener type polishing machine. Background Technique

[0002] A pneumatic polishing machine is a tool that uses gas pressure to generate rotational power to achieve surface polishing. Its working principle is to inject compressed air as a power source. After the compressed air is regulated, it enters the rotating rotor of the pneumatic polishing machine. In the rotor, the air is guided to the gas outlets on the impeller and the rotor. When the compressed air passes through the rotating rotor, it generates a certain amount of power, causing the rotor to rotate at high speed. This rotational power is transmitted to the working head of the polishing machine, thereby driving the polishing disc to rotate. The rotating polishing disc contacts the surface to be polished, and through the action of frictional force, the surface is polished and ground. The polishing machine is usually equipped with different types of polishing discs to meet different polishing requirements.

[0003] The polishing machine is used relatively frequently. In general, the grinding head is made of various materials such as cloth and felt polishing wheels. When polishing different items, different polishing heads need to be replaced. Most of the existing polishing machines require workers to manually replace them with a screwdriver, which is time-consuming and laborious and reduces the replacement efficiency. Content of the Utility Model

[0004] The utility model provides an eccentric snap-fastener type polishing machine to solve the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: An eccentric snap-fastener type polishing machine, including a grip, an air inlet joint is threadedly installed at the tail end of the grip, an exhaust hood is sleeved on the air inlet joint, and a sound-absorbing cotton is arranged between the exhaust hood and the air inlet joint. A regulator assembly is arranged on the grip, and a pneumatic motor assembly is threadedly installed at the head end of the grip. The output end of the pneumatic motor assembly is installed with a snap-fastener type polishing disc, and a snap-fastener type polishing sheet is adhered to the snap-fastener type polishing disc;

[0006] The regulator assembly includes a switch plug, a regulating valve, a telescopic spring, a switch valve and a trigger. One end of the regulating valve is located in the switch plug, one end of the telescopic spring is located in the regulating valve, and the other end of the telescopic spring is connected to the switch valve. The trigger is hinged to the grip through a torsion spring, and one end of the switch valve is close to the trigger;

[0007] Further, the pneumatic motor assembly includes a fuselage, a cylinder barrel, a front cover, a rear cover, a rotor, a vane, an eccentric wheel, a bushing, an exhaust cover and a locking ring. The cylinder is installed in the fuselage. The front cover and the rear cover are respectively installed on the head and tail sides of the cylinder barrel. The head and tail ends of the rotor are inserted into the cylinder barrel through bearings. The vane is installed on the rotor. The eccentric wheel is installed at the head end of the rotor. The bushing is installed on the eccentric wheel. The exhaust cover is movably sleeved on the bushing and is fixedly connected to the head end of the rotor by screws. The locking ring is movably sleeved on the exhaust cover and is threadedly connected to the head end of the fuselage.

[0008] Further, the grip is of a hollow structure. The air inlet joint is in communication with the grip, and the grip is in communication with the pneumatic motor assembly.

[0009] Further, a switch air passage is provided in the grip, and an air inlet interface is provided on the switch air passage.

[0010] Further, the regulating valve is located in one port of the switch air passage. The switch valve is located in the switch air passage, and one end of the switch valve extends outwards from the other port of the switch air passage.

[0011] Further, an air inlet cavity and an exhaust cavity are provided in the fuselage. The air inlet cavity is connected to the air inlet interface, and the exhaust cavity is in communication with the grip.

[0012] Further, the air inlet end and the air outlet end of the cylinder barrel are correspondingly located in the air inlet cavity and the exhaust cavity.

[0013] Compared with the prior art, the present utility model provides an eccentric sticky fastener type polishing machine, which has the following

[0014] Beneficial effects:

[0015] 1. For this eccentric sticky fastener type polishing machine, the sticky fastener type polishing disc and the sticky fastener type polishing sheet are both based on the sticky fastener type design. This design enables the polishing sheet to be firmly adhered to the polishing disc during use and can be reused. It is very suitable for scenarios that require frequent disassembly and re-adhesion. At the same time, the hand-held design, the safety lever type start-stop switch, and the 90-degree right-angle elbow are suitable for the surface grinding and polishing of various small parts and the grinding and polishing work in narrow spaces.

[0016] 2. This eccentric sticky fastener type polishing machine is overall small, light, safe and easy to use. With a unique tail exhaust structure, the exhaust gas is led from the pneumatic motor assembly to the grip and then discharged through the exhaust hood at the tail. The internal sound-absorbing cotton can effectively reduce noise pollution and does not affect the operator. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 Partial cross-sectional view of the present utility model;

[0019] Figure 3 Exploded view of the regulator assembly of the present utility model;

[0020] Figure 4 Exploded view of the pneumatic motor assembly of the present utility model.

[0021] In the figure: 1. Grip; 11. Switch air passage; 12. Air inlet connector; 2. Air inlet joint; 3. Exhaust hood; 4. Sound-absorbing cotton; 5. Regulator assembly; 51. Switch plug; 52. Regulating valve; 53. Telescopic spring; 54. Switch valve; 55. Trigger; 6. Pneumatic motor assembly; 61. Body; 62. Cylinder barrel; 63. Front cover; 64. Rear cover; 65. Rotor; 66. Vane; 67. Eccentric wheel; 68. Bushing; 69. Exhaust cover; 610. Locking ring; 611. Air inlet cavity; 612. Exhaust cavity; 7. Hook-and-loop polishing disc; 8. Hook-and-loop polishing sheet. Specific embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model discloses an eccentric hook-and-loop polishing machine, including a grip 1. The tail end of the grip 1 is threadedly installed with an air inlet joint 2. An exhaust hood 3 is sleeved on the air inlet joint 2, and sound-absorbing cotton 4 is arranged between the exhaust hood 3 and the air inlet joint 2. A regulator assembly 5 is arranged on the grip 1. The whole is small, light, safe and easy to use. With a unique tail exhaust structure, the exhaust gas is led from the pneumatic motor assembly 6 to the grip 1 and then discharged through the exhaust hood 3 at the tail. The internal sound-absorbing cotton 4 can effectively reduce noise pollution and does not affect the operator. The head end of the grip 1 is threadedly installed with a pneumatic motor assembly 6. The output end of the pneumatic motor assembly 6 is installed with a hook-and-loop polishing disc 7, and a hook-and-loop polishing sheet 8 is adhered to the hook-and-loop polishing disc 7. The hook-and-loop polishing disc 7 and the hook-and-loop polishing sheet 8 are both based on the hook-and-loop design. This design enables the polishing sheet to be firmly adhered to the polishing disc during use and can be reused, which is very suitable for scenarios that require frequent disassembly and re-adhesion. At the same time, the hand-held design, the safety lever type start-stop switch, and the 90-degree right-angle elbow are suitable for the surface grinding and polishing of various small parts and the grinding and polishing work in narrow spaces;

[0024] The regulator assembly 5 includes a switch plug 51, a regulating valve 52, a telescopic spring 53, a switch valve 54 and a trigger 55. One end of the regulating valve 52 is located in the switch plug 51. One end of the telescopic spring 53 is located in the regulating valve 52, and the other end of the telescopic spring 53 is connected to the switch valve 54. The trigger 55 is hinged to the grip 1 by a torsion spring, and one end of the switch valve 54 is close to the trigger 55.

[0025] The pneumatic motor assembly 6 includes a body 61, a cylinder barrel 62, a front cover 63, a rear cover 64, a rotor 65, blades 66, an eccentric wheel 67, a bushing 68, an exhaust cover 69 and a locking ring 610. The cylinder is installed in the body 61. The front cover 63 and the rear cover 64 are respectively installed on the head and tail sides of the cylinder barrel 62. The head and tail ends of the rotor 65 are inserted into the cylinder barrel 62 through bearings. The blades 66 are installed on the rotor 65. The eccentric wheel 67 is installed at the head end of the rotor 65. The bushing 68 is installed on the eccentric wheel 67. The exhaust cover 69 is movably sleeved on the bushing 68 and is fixedly connected to the head end of the rotor 65 by screws. The locking ring 610 is movably sleeved on the exhaust cover 69 and is threadedly connected to the head end of the body 61.

[0026] Specifically, the grip 1 is of a hollow structure. The air inlet joint 2 is in communication with the grip 1, and the grip 1 is in communication with the pneumatic motor assembly 6.

[0027] In this embodiment, the waste gas is led from the pneumatic motor assembly 6 into the grip 1 and then discharged through the exhaust hood 3 at the tail. The internally provided sound-absorbing cotton 4 can effectively reduce noise pollution and does not affect the operator.

[0028] Specifically, a switch air passage 11 is provided in the grip 1, and an air inlet interface 12 is provided on the switch air passage 11.

[0029] In this embodiment, the switch air passage 11 is used to introduce the air source introduced by the air inlet interface 12 and discharge it from the air inlet interface 12.

[0030] Specifically, the regulating valve 52 is located in one port of the switch air passage 11, and the switch valve 54 is located in the switch air passage 11, and one end of the switch valve 54 extends outwards from the other port of the switch air passage 11.

[0031] In this embodiment, the regulating valve 52 realizes functions such as starting, stopping and speed regulation of the pneumatic polishing machine by controlling the intake and exhaust of air. The switch valve 54 is used to control the on-off of compressed air to realize the start and stop of the polishing machine.

[0032] Specifically, an air inlet cavity 611 and an exhaust cavity 612 are provided in the body 61. The air inlet cavity 611 is connected to the air inlet interface 12, and the exhaust cavity 612 is in communication with the grip 1.

[0033] In this embodiment, compressed air is introduced into the intake chamber 611 from the intake interface 12. When the compressed air passes through the rotor 65, it generates a certain amount of power, causing the rotor 65 to rotate at high speed. The exhaust chamber 612 is used to discharge the waste gas.

[0034] Specifically, the intake end and the outlet end of the cylinder barrel 62 are correspondingly located in the intake chamber 611 and the exhaust chamber 612.

[0035] In this embodiment, after the compressed air is regulated, it enters the rotor 65 from the intake end of the cylinder barrel 62. In the rotor 65, the air is guided to the blade 66 and the outlet end of the cylinder barrel 62. When the compressed air passes through the rotor 65, it generates a certain amount of power, causing the rotor 65 to rotate at high speed. This rotational power is transmitted to the eccentric wheel 67 of the polishing machine, thereby driving the hook-and-loop type polishing disc 7 to rotate.

[0036] During use, the hook-and-loop type polishing disc 7 and the hook-and-loop type polishing sheet 8 are both based on the hook-and-loop design (also known as Velcro, a fastening tool composed of two plastic products, with excellent adhesion and firmness). This design enables the polishing sheet to be firmly adhered to the polishing disc during use and can be reused, which is very suitable for scenarios that require frequent disassembly and re-adhesion. At the same time, the hand-held design, the safety lever type start-stop switch, and the 90-degree right-angle elbow are suitable for surface grinding and polishing of various small parts and grinding and polishing work in narrow spaces. The whole is small, light, safe and easy to use. The unique tail exhaust structure allows the waste gas to be led from the pneumatic motor assembly 6 to the handle 1 and then to the tail exhaust hood 3 for discharge. The internal sound-absorbing cotton 4 can effectively reduce noise pollution and does not affect the operator.

[0037] In summary, for this eccentric hook-and-loop type polishing machine, the hook-and-loop type polishing disc 7 and the hook-and-loop type polishing sheet 8 are both based on the hook-and-loop design. This design enables the polishing sheet to be firmly adhered to the polishing disc during use and can be reused, which is very suitable for scenarios that require frequent disassembly and re-adhesion. At the same time, the hand-held design, the safety lever type start-stop switch, and the 90-degree right-angle elbow are suitable for surface grinding and polishing of various small parts and grinding and polishing work in narrow spaces; the whole is small, light, safe and easy to use. The unique tail exhaust structure allows the waste gas to be led from the pneumatic motor assembly 6 to the handle 1 and then to the tail exhaust hood 3 for discharge. The internal sound-absorbing cotton 4 can effectively reduce noise pollution and does not affect the operator.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eccentric Velcro polisher, comprising a handle (1), characterized in that: The tail end of the handle (1) is threadedly mounted with an air inlet connector (2), an exhaust hood (3) is mounted on the air inlet connector (2), and a silencer (4) is arranged between the exhaust hood (3) and the air inlet connector (2); a regulator assembly (5) is arranged on the handle (1), and a pneumatic motor assembly (6) is threadedly mounted on the head end of the handle (1), a Velcro-type polishing disc (7) is mounted on the output end of the pneumatic motor assembly (6), and a Velcro-type polishing disc (8) is bonded to the Velcro-type polishing disc (7); The regulator assembly (5) comprises a switch plug (51), a regulating valve (52), a telescopic spring (53), a switch valve (54) and a trigger (55), one end of the regulating valve (52) is located in the switch plug (51), one end of the telescopic spring (53) is located in the regulating valve (52), and the other end of the telescopic spring (53) is connected to the switch valve (54), the trigger (55) is hinged to the handle (1) through a torsion spring, and one end of the switch valve (54) is close to the trigger (55).

2. An eccentric Velcro polishing machine according to claim 1, characterized in that: The pneumatic motor assembly (6) comprises a body (61), a cylinder barrel (62), a front cover (63), a rear cover (64), a rotor (65), blades (66), an eccentric wheel (67), a bushing (68), an exhaust cover (69) and a locking ring (610), and the cylinder is installed in the body (61).

3. An eccentric Velcro polishing machine according to claim 2, characterized in that: The front cover (63) and the rear cover (64) are respectively installed on the front and rear sides of the cylinder barrel (62), the front and rear ends of the rotor (65) are installed in the cylinder barrel (62) through bearings, the blades (66) are installed on the rotor (65), the eccentric wheel (67) is installed on the head end of the rotor (65), and the bushing (68) is installed on the eccentric wheel (67).

4. The eccentric Velcro polishing machine according to claim 3, characterized in that: The exhaust cover (69) is movably mounted on the bushing (68) and is connected to the head end of the rotor (65) by screw locking. The locking ring (610) is movably mounted on the exhaust cover (69) and is threadedly connected to the head end of the body (61).

5. The eccentric Velcro polishing machine according to claim 1, characterized in that: The handle (1) is a hollow structure, the air inlet connector (2) is connected to the handle (1), and the handle (1) is connected to the pneumatic motor assembly (6).

6. The eccentric Velcro polishing machine according to claim 4, characterized in that: The handle (1) is provided with a switch air passage (11), and the switch air passage (11) is provided with an air inlet interface (12).

7. An eccentric Velcro polishing machine according to claim 6, characterized in that: The regulating valve (52) is located in one port of the switch air channel (11), the switch valve (54) is located in the switch air channel (11), and one end of the switch valve (54) extends outward from the other port of the switch air channel (11).

8. The eccentric Velcro polishing machine according to claim 6, characterized in that: An air intake cavity (611) and an air exhaust cavity (612) are provided in the body (61), and the air intake cavity (611) is connected to the air intake interface (12), and the air exhaust cavity (612) is connected to the handle (1).

9. An eccentric Velcro polishing machine according to claim 8, characterized in that: The air inlet end and the air outlet end of the cylinder barrel (62) are located in the air inlet chamber (611) and the air outlet chamber (612) respectively.

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