CN102211310A

CN102211310A - Surface treatment method of cleaning air inlet

Info

Publication number: CN102211310A
Application number: CN2011101431307A
Authority: CN
Inventors: 季吉清
Original assignee: SUZHOU LIDA CASTING CO Ltd
Current assignee: SUZHOU LIDA CASTING CO Ltd
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2011-10-12
Anticipated expiration: 2031-05-31
Also published as: CN102211310B

Abstract

The invention provides a surface treatment method of a cleaning air inlet. The method has the advantages of uniformity in surface treatment and high efficiency, the surface roughness after treatment is within Ra0.6, and the surface roughness of an internal channel is within Ra0.4. The method comprises the steps of: placing a cleaning air inlet in a vibrating finishing machine, and grinding the surface of the cleaning air inlet by using a grinding medium, wherein the vibrating frequency of the finishing machine is 35-40Hz, the vertical amplitude is 6.0-6.25mm, and the horizontal amplitude is 6.75-7.0mm.

Description

The surface treatment method of cleaning air inlet

Technical field

The present invention relates to a kind of surface treatment method that cleans air inlet.

Background technology

Cleaning air inlet is the spinning key components and parts, and main effect is mechanically cotton to be rubbed in the working chamber of cleaning air inlet and matrix composition, forming tiny high-quality cotton yarn and mixtures of impurities.Then will qualified high-quality cotton yarn under the shunting action of air-flow that Pitot-static tube forms and branching block and impurity shunt away by cleaning the air inlet inner passage, by follow-up mechanism high-quality cotton yarn twisted is become cotton thread.Therefore this product inner passage is to the having relatively high expectations of surface quality, and the burr or the rough region that can not exist any operation or operation to bring are in order to avoid cotton yarn sticks blocking channel and causes equipment downtime.

Original cleaning air inlet adopts pneumatic or electronic grinding head for polishing to carry out manual grinding after machined, and there is following several shortcoming in this surface treatment mode:

1, single-piece labour intensity is big, needs more manpower to carry out batch process;

2, manual grinding, to having relatively high expectations of operating personnel, the associative operation personnel must just can finish related work through the training of long period;

3, pure manual grinding exists processing inhomogeneous, original machined precision can be destroyed;

4, pure manual grinding is difficult to avoid not existing the drain process situation, and this makes the cleaning air inlet can cause fiber to stick within it in follow-up use, stops up the outlet of fiber, causes shutdown.

Summary of the invention

It is even to the purpose of this invention is to provide a kind of surface treatment, the efficient height, the surface roughness after the processing in Ra0.6, the inner passage surface roughness at Ra0.4 with interior cleaning air inlet surface treatment method.

This cleaning air inlet surface treatment method is that the cleaning air inlet is placed in the light polishing machine of vibration, and to its surface grinding, the light polishing machine vibration frequency is at 35～40Hz with abrasive media, and vertical amplitude is at 6.0～6.25mm, and horizontal vibration amplitude is at 6.75～7.0mm.

Light polishing machine, be a kind of special vibro-grinding equipment, the product that needs are handled is placed in the tubular or bowl type open containers that spring is housed, drive container by special vibrating device and carry out up and down and side-to-side vibrations, make in the container part and abrasive media generation mutually mutual friction finish surface light and adorn task.Vibrating device is realized vibration by the driving shaft that has the eccentrically mounted weight piece under the drive of motor.

Beneficial effect of the present invention: general market light polishing machine commonly used is difficult to satisfy the high standard requirement of cleaning air inlet owing to require that certain versatility is arranged.For addressing this problem, we are according to the surface requirements of cleaning air inlet and the characteristic of shape of product, selected certain vibration frequency, amplitude, made that the inner passage surface roughness is in Ra0.2 through in the cleaning air inlet surface roughness Ra 0.6 after this method processing.

The surface treatment method of above-mentioned cleaning air inlet: abrasive media adopts diameter 1.8-1.2mm ball and flying saucer; It is the astrosphere of 3-5mm that the central part of flying saucer has external diameter, and the astrosphere periphery has the endless belt that the cross section is leg-of-mutton outside protrusion, and the endless belt rising height is the 20-30% of astrosphere external diameter; The mass ratio of steel ball and flying saucer is 70-90: 10-30 in the abrasive media.Preferably, abrasive media employing diameter 1.5mm ball and external diameter are the flying saucer of 4mm; The mass ratio of steel ball and flying saucer is 80: 20 in the abrasive media.

By adopting the light decorations processing mode of special vibration frequency, amplitude and abrasive media, can reach following some benefit:

1, because processing mode is immersion type (part is soaked to be embedded in to be realized in the abrasive media grinding), surface treatment effect is very even, does not have drain process or crosses disposition;

2, because this mode can be handled the product of some simultaneously according to container (grinding chamber) volume size, can satisfy the task of batch process;

3, this mode vibration frequency, amplitude and abrasive media set finish after, the work that operating personnel need finish only is to put into pending product and remove the product of having handled from container in container, and operating personnel's requirement is reduced greatly.

Description of drawings

Fig. 1 is the schematic diagram of cleaning air outlet.

Fig. 2 is the schematic perspective view of cleaning air outlet.

Fig. 3 is the schematic diagram of flying saucer.

Fig. 4 is the vertical view of Fig. 3.

The specific embodiment

Cleaning air outlet 1 is placed in the container of the vibrating burnisher that different abrasive medias are housed, vibration frequency is at 35～40Hz, vertical amplitude is at 6.0～6.25mm, horizontal vibration amplitude is at 6.75～7.0mm, through the different processing times, the surface roughness of test cleaning air outlet (comprising its inner passage 11), and inner passage roughness.Obtain different embodiment, referring to table 1.No stainless steel flying saucer in the abrasive media among the embodiment 1-3 comprises the stainless steel flying saucer in the abrasive media among other embodiment.Referring to Fig. 3,4, it is the astrosphere 2 of 3-5mm that the central part of flying saucer has external diameter L, and astrosphere 2 peripheries have the endless belt 3 of the outside protrusion that the cross section is generally triangular, and endless belt rising height H is the 20-30% of astrosphere external diameter L.In the abrasive media quality of steel ball and flying saucer when the processing time referring to table 1.

We have selected certain vibration frequency, amplitude according to the surface requirements of cleaning air inlet and the characteristic of shape of product, and the special abrasive media of selecting.

Aspect the consideration of vibration frequency and amplitude, in order to reach minimum surface treatment time, best surface quality, we have selected vibration frequency at 35～40Hz, and vertical amplitude is at 6.0～6.25mm, and horizontal vibration amplitude is at 6.75～7.0mm.Aspect abrasive media, in order to cover all surfaces of service aisle, we have selected the stainless steel flying saucer about diameter 1.5mm left and right sides steel ball ball and maximum gauge 4mm.Diameter 1.5mm left and right sides steel ball ball can guarantee that all corners can both cover in the product channels, and the stainless steel flying saucer about diameter 4mm can improve grinding rate, improves grinding efficiency.This two abrasive media mass ratio is 80: 20 (steel ball balls: the stainless steel flying saucer).Do by examination processing, test run, the product surface roughness after the processing is in Ra0.5, and the interior roughness deviate of overall work passage is less than 0.2.

Table 1

The invention provides a kind of immersion type method for polishing surface that passes through, improve product surface fineness.This method can obtain a surface effect that surface smoothness is highly stable when reducing labour intensity, improving working (machining) efficiency.Be applicable to the frame resultant yarn parts that component surface fineness is had relatively high expectations, such as the cleaning air inlet.

Claims

1. clean the surface treatment method of air inlet, it is characterized in that: the cleaning air inlet is placed in the light polishing machine of vibration, and to its surface grinding, the light polishing machine vibration frequency is at 35～40Hz with abrasive media, vertical amplitude is at 6.0～6.25mm, and horizontal vibration amplitude is at 6.75～7.0mm.

2. the surface treatment method of cleaning air inlet as claimed in claim 1 is characterized in that: abrasive media adopts diameter 1.8-1.2mm ball and flying saucer; It is the astrosphere of 3-5mm that the central part of flying saucer has external diameter, and the astrosphere periphery has the endless belt that the cross section is leg-of-mutton outside protrusion, and the endless belt rising height is the 20-30% of astrosphere external diameter; The mass ratio of steel ball and flying saucer is 70-90: 10-30 in the abrasive media.

3. the surface treatment method of cleaning air inlet as claimed in claim 2 is characterized in that: it is the flying saucer of 4mm that abrasive media adopts diameter 1.5mm ball and external diameter; The mass ratio of steel ball and flying saucer is 80: 20 in the abrasive media.