CN210566000U

CN210566000U - Vibration-damping mute pneumatic knife

Info

Publication number: CN210566000U
Application number: CN201921589452.2U
Authority: CN
Inventors: 王炜棠
Original assignee: Dongguan Emma Cnc Technology Co ltd
Current assignee: Dongguan Emma Cnc Technology Co ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-05-19
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a damping silence pneumatics sword, include: admit air axle, exhaust axle, motion subassembly, arbor, cutter and damping mechanism, the high-pressure gas drive motion subassembly motion that comes in from the axle that admits air to discharge from the exhaust axle, the front end of motion subassembly is located to the arbor, and the front end of arbor is located to the cutter, and the motion subassembly is cutting motion through arbor drive cutter, and interior knife pouch has the arbor axle with the outside cladding of arbor, and damping mechanism includes: the front vibration damping sleeve, the spring, the inner cutter sleeve and the piston ring are integrated in the inner cutter sleeve, the piston ring is arranged between the outer wall of the inner cutter sleeve and the inner wall of the cutter cylinder shaft, the front vibration damping sleeve is arranged between the outer wall of the cutter shaft and the inner wall of the cutter cylinder shaft, the spring is further sleeved on the cutter shaft, and the spring is limited between the front vibration damping sleeve and the inner cutter sleeve. The utility model relates to a damping silence pneumatic cutter that production efficiency is high, can reduce resonance, noise reduction effectively.

Description

Vibration-damping mute pneumatic knife

Technical Field

The utility model relates to a numerical control leather cutting technique especially relates to a damping silence pneumatic cutter that production efficiency is high, can reduce resonance, noise reduction effectively.

Background

With the progress of science and technology and the continuous development of economy, the consumption presents diversified and personalized characteristics. Enterprises are under pressure to shorten delivery time, improve product quality and reduce cost, and under increasingly severe market competition environments, enterprises can continue to survive by improving their own competitiveness.

In the existing leather cutting and blanking process, the applicant has developed a pneumatic moving knife cutting technology, so that the production efficiency is effectively improved, the production quality is guaranteed, the pneumatic moving knife cutting technology can be easily applied to mass production, and the labor intensity of workers is reduced.

However, with the increasing living standard of people, the pursuit of comfort level of work and life has higher requirements. In the existing leather cutting and blanking process, a pneumatic knife can generate large noise when working, certain environmental protection problems are generated in a production workshop, and more importantly, the noise seriously influences the comfort and physical and psychological health of workers when working.

Therefore, there is a need for a vibration-damping and silencing pneumatic knife with high production efficiency and capable of effectively reducing resonance and noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a damping silence pneumatic cutter that production efficiency is high, can reduce resonance, noise reduction effectively.

In order to realize the purpose, the utility model provides a technical scheme does: provided is a vibration-damping silent pneumatic knife, comprising: the air inlet shaft, the exhaust shaft, the motion assembly, the cutter shaft, the cutter and the vibration reduction mechanism, high-pressure gas from the air inlet shaft drives the motion assembly to move and is discharged from the exhaust shaft, the cutter shaft is arranged at the front end of the motion assembly, the cutter is arranged at the front end of the cutter shaft, the motion assembly drives the cutter to do cutting motion through the cutter shaft, and the vibration reduction mechanism comprises: preceding damping cover, spring, interior knife pouch, piston ring, the motion subassembly is integrated in the interior knife pouch, interior knife pouch has the knife section of thick bamboo axle with the outside cladding of arbor, the outer wall of interior knife pouch with set up between the inner wall of knife section of thick bamboo axle the piston ring, the outer wall of arbor with set up between the inner wall of knife section of thick bamboo axle preceding damping cover, the arbor still overlaps and is equipped with the spring, just the spring is spacing in preceding damping cover with between the interior knife pouch.

A positioning sleeve is arranged at the joint of the exhaust shaft and the inner cutter sleeve in a wrapping mode, and a silencing ring is arranged between the outer wall of the exhaust shaft and the inner wall of the positioning sleeve.

And a damping pad is also arranged between the inner wall of the silencing ring and the outer wall of the air inlet shaft.

The air inlet shaft is provided with a pressure shaft ring at the position close to the rear end, and is limited and sealed by a Y-shaped sealing ring.

The pressure collar is the structure that inside was equipped with a recess, the end of admitting air axle gets into carry on spacingly in the recess, the recess is equipped with fenestrate structure for the tank bottom, outside gas connection pass through the perforation with the rear end of admitting air axle is connected.

The pressure collar is of a tubular structure, the tail end of the air inlet shaft penetrates through the pressure collar, and the external air interface is connected with the rear end of the air inlet shaft.

Compared with the prior art, the damping mechanism includes: preceding damping cover, spring, interior knife pouch, piston ring, the motion subassembly is integrated in the interior knife pouch, the outer wall of interior knife pouch with set up between the inner wall of knife barrel axle the piston ring, the outer wall of arbor with set up between the inner wall of knife barrel axle preceding damping cover, the arbor still cover is equipped with the spring, just the spring is spacing in preceding damping cover with between the interior knife pouch. Therefore, when the cutter shaft assembly moves, the generated high-frequency vibration is guided by the front vibration damping sleeve, the piston ring and the Y-shaped sealing ring, the vibration direction is guided to be axial, and the vibration absorption effect is achieved through the elastic characteristics of the spring and the vibration damping pad. Thereby reducing the transmission of vibrations to the cartridge shaft, and the attached components. The vibration transmitted by the cutter barrel shaft is reduced, so that the resonance is reduced, and the noise is relatively reduced.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

Fig. 1 is a schematic view of an embodiment of the vibration-damping silent pneumatic knife of the present invention.

Fig. 2 is a schematic view of another embodiment of the vibration-damping silent pneumatic knife according to the present invention.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout. As described above, as shown in fig. 1, the vibration-damping silent pneumatic knife 100 according to the embodiment of the present invention includes: the gas cutting device comprises an air inlet shaft 12, an exhaust shaft 6, a motion assembly (not shown in the figure), a cutter shaft 15, a cutter 16 and a vibration damping mechanism, wherein high-pressure gas entering from the air inlet shaft 12 drives the motion assembly to move and is exhausted from the exhaust shaft 6, the cutter shaft 15 is arranged at the front end of the motion assembly, the cutter 16 is arranged at the front end of the cutter shaft 15, the motion assembly drives the cutter 16 to cut through the cutter shaft 15, and the vibration damping mechanism comprises: preceding damping cover 1, spring 2, interior knife pouch 4, piston ring 5, the motion subassembly is integrated in interior knife pouch 4, interior knife pouch 4 and the outside cladding of arbor 15 have a knife barrel axle 3, the outer wall of interior knife pouch 4 with set up between the inner wall of knife barrel axle 3 piston ring 5, the outer wall of arbor 15 with set up between the inner wall of knife barrel axle 3 preceding damping cover 1, arbor 15 still the cover be equipped with spring 2, just spring 2 spacing in preceding damping cover 1 with between the interior knife pouch 4. The vibration absorption device is guided by the front vibration absorption sleeve 1, the piston ring 5 and the Y-shaped sealing ring 10, the vibration direction is guided to be axial, and the vibration absorption effect is achieved through the elastic characteristics of the spring 2 and the vibration absorption pad 8. Thereby reducing the transmission of vibrations to the cartridge shaft 3, and other connected components.

In one embodiment, as shown in fig. 1, a directional sleeve 14 is wrapped at the joint of the exhaust shaft 6 and the inner cutter sleeve 4, and a sound deadening ring 13 is arranged between the outer wall of the exhaust shaft 6 and the inner wall of the directional sleeve 14. Through the silencing ring 13, the exhaust shaft 6 can be well eccentrically limited, the vibration direction is guided to be axial, and noise is effectively reduced.

In one embodiment, as shown in fig. 1, a damping pad 8 is further disposed between the inner wall of the sound-deadening ring 13 and the outer wall of the intake shaft 12. The vibration damping pad 8 has the function of effectively preventing the tail end of the air inlet shaft from guiding the vibration direction to be the axial direction when vibrating, and avoiding transverse vibration.

In one embodiment, as shown in fig. 1, the air inlet shaft 12 is provided with a pressure collar 11 near the rear end and is limited and sealed by a Y-shaped sealing ring 10. The function of the pressing collar 11 is to press the air inlet shaft 12

In one embodiment, as shown in fig. 1, the pressure collar 11 is a structure having a groove 110 therein, the end of the air inlet shaft 12 enters the groove 110 for limiting, the groove 110 is a structure having a through hole 111 at the bottom, and the external air interface 17 is connected to the rear end of the air inlet shaft 12 through the through hole 111.

In one embodiment, as shown in fig. 2, the compression collar 11 is a tubular structure, the end of the air inlet shaft 12 passes through the compression collar 11, and the external air interface 17 is connected with the rear end of the air inlet shaft 12.

The principle of the utility model of making an uproar falls in damping is explained below:

when the moving component in the inner cutter sleeve 4 operates, the generated high-frequency vibration is guided by the front vibration damping sleeve 1, the piston ring 5 and the Y-shaped sealing ring 10, the vibration direction is guided to be axial, and the vibration absorption effect is achieved through the elastic characteristics of the spring 2 and the vibration damping pad 8. Thereby reducing the transmission of vibrations to the cartridge shaft 3, and other connected components. The vibration transmitted by the cutter cylinder shaft 3 is reduced, so that the resonance is reduced, and the noise is relatively reduced. Through the test, the wire diameter of the spring 2 is within the range of 1.2-2.2 cm, the effect is optimal, and compared with a pneumatic knife without a vibration reduction structure, the noise decibel of the actually measured effect is reduced by 4-6 dB (A) compared with that of the original noise decibel.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. A vibration-damping mute pneumatic knife is characterized by comprising: the air inlet shaft, the exhaust shaft, the motion assembly, the cutter shaft, the cutter and the vibration reduction mechanism, high-pressure gas from the air inlet shaft drives the motion assembly to move and is discharged from the exhaust shaft, the cutter shaft is arranged at the front end of the motion assembly, the cutter is arranged at the front end of the cutter shaft, the motion assembly drives the cutter to do cutting motion through the cutter shaft, and the vibration reduction mechanism comprises: preceding damping cover, spring, interior knife pouch, piston ring, the motion subassembly is integrated in the interior knife pouch, interior knife pouch has the knife section of thick bamboo axle with the outside cladding of arbor, the outer wall of interior knife pouch with set up between the inner wall of knife section of thick bamboo axle the piston ring, the outer wall of arbor with set up between the inner wall of knife section of thick bamboo axle preceding damping cover, the arbor still overlaps and is equipped with the spring, just the spring is spacing in preceding damping cover with between the interior knife pouch.

2. The vibration-damping silent pneumatic knife according to claim 1, wherein a directional sleeve is wrapped at the joint of the exhaust shaft and the inner knife sleeve, and a silencing ring is arranged between the outer wall of the exhaust shaft and the inner wall of the directional sleeve.

3. The vibration-damping silent pneumatic knife according to claim 2, wherein a vibration-damping pad is further disposed between the inner wall of the noise-damping ring and the outer wall of the air inlet shaft.

4. The vibration reducing silent pneumatic knife of claim 1, wherein the air inlet shaft is provided with a pressure collar near the rear end and is limited and sealed by a Y-shaped sealing ring.

5. The vibration reducing silent pneumatic knife according to claim 4, wherein the pressing collar is a structure with a groove inside, the end of the air inlet shaft enters the groove for limiting, the groove is a structure with a through hole at the bottom of the groove, and the external air interface is connected with the rear end of the air inlet shaft through the through hole.

6. The vibration reducing silent pneumatic knife according to claim 4, wherein the pressure collar is a tubular structure, the end of the air inlet shaft passes through the pressure collar, and the external air interface is connected with the rear end of the air inlet shaft.