CN205954031U - Three -stage dust -removal formula single face buffing machine that clearning between rolls is adjustable - Google Patents
Three -stage dust -removal formula single face buffing machine that clearning between rolls is adjustable Download PDFInfo
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- CN205954031U CN205954031U CN201620956167.XU CN201620956167U CN205954031U CN 205954031 U CN205954031 U CN 205954031U CN 201620956167 U CN201620956167 U CN 201620956167U CN 205954031 U CN205954031 U CN 205954031U
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- leather
- buffing
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Abstract
The utility model discloses a three -stage dust -removal formula single face buffing machine that clearning between rolls is adjustable, including casing, pay -off roller set, buffing roller, roll gap regulation device, one -level dust collector, second grade dust collector and tertiary dust collector, the pay -off roller set includes initiative pinch roll and driven pinch roll, and the axial lead of buffing roller and initiative pinch roll is on same horizontal plane, the utility model discloses a set up the three -stage dust -removal device, and remove dust to adopt be that high -velocity air sweeps, mechanical oscillation and vacuum negative pressure dust absorption mode, the dust removal in -process can avoid the dust to adsorb the problem that can not get rid of under electrostatic action on the leather, three -stage dust -removal can fully get rid of the dust of adhesion on the leather behind the buffing, the dust removal efficiency is high, dust removal effect is good, and dust collecting equipment is lower for the brush roll change frequency that has now, life is longer, and its buffing roller is adjusted with the interval accessible roll gap regulation device of initiative pinch roll to make the buffing machine can adapt to the grinding operation of different thickness leathers, the commonality is good.
Description
Technical field
This utility model is related to a kind of leather production equipment, particularly to a kind of buffing machine.
Background technology
In the production process of leather, need to carry out ground to leather, to improve the presentation quality of leather.Buffing bag
Include the grain layer to leather and the grinding of tapetum (a layer that presses close to muscle).
Buffing machine of the prior art, all can only carry out grinding, low production efficiency to leather a face.
Because buffing can produce substantial amounts of dust, these dust may result in cancer and occur, and Producer can be produced sternly
The actual bodily harm of weight, therefore existing buffing machine is generally provided with dust arrester.The dust arrester of existing buffing machine is general
It is the brush roll with bristle, during buffing, by under the abrasive dust brush on leather, the abrasive dust under brush passes through wind to the brush roll of rotation again
Machine is taken away.
Had using the shortcoming that brush roll removes abrasive dust on leather：Electrostatic can be produced when the hairbrush the 1st, being dried and leather friction, make
Scurf attaches on skin, is difficult to remove, even if finding in actual production that tiny abrasive dust by electrostatic adsorption is manually washed one's face again
Go unclean.2nd, abrasive dust is easily piled up in bristle, and after long-time use, in bristle, abrasive dust is piled up and added, abrasive dust elimination effect
Can gradually be deteriorated.3rd, bristle is easily damaged, and replacement frequency is higher.
And existing buffing machine, its buffing roller is that fixation is nonadjustable, and this is such that it does not adapt to different-thickness skin
The grinding work of leather, versatility is poor.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of roll gap adjustable 3-stage dust-removal formula one side buffing machine, to solve
Certainly existing buffing machine can only grind the one side of leather, buffing inefficiency, and existing buffing machine dust removing effects are poor, brush roll replacement frequency
Height, and the nonadjustable technical problem of existing buffing machine buffing roller.
This utility model roll gap is adjustable 3-stage dust-removal formula one side buffing machine, including casing, described casing is provided with leather
Import；
Also include being arranged on leather enter epistome horizontal material loading platform, be arranged on leather enter metastomium feeding roller group,
Buffing roller, the leather after buffing is carried out with the primary dust removing device of dedusting, the leather out from primary dust removing device is removed
The two-stage dust removal device of dirt and the 3-stage dust-removal device that the leather out from two-stage dust removal device is carried out with dedusting；
Described feeding roller group includes active pinch roll and the driven pinch roll being arranged on directly over active pinch roll, described mill
Leather roller is located at by active pinch roll, and the axial line of buffing roller and active pinch roll is in same level；
Described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes the roll gap regulation dress adjusting buffing roller horizontal level
Put, described roll-separating mechanism includes being arranged on buffing roller two ends the straight guide outside casing, and described casing both sides are also
It is provided with the first gripper shoe installing actively plus sending roller two end axles bearing and the second gripper shoe and buffing roller bearings at both ends is installed
3rd gripper shoe of seat and the 4th gripper shoe, described 3rd gripper shoe and the 4th gripper shoe are slidably matched with straight guide；Described
It is provided with one gripper shoe and actively pinches roll drive motor, described 3rd gripper shoe is provided with buffing roll drive motor；Described
The ultrasonic sensor of distance between detection buffing roller and active pinch roll is provided with the second gripper shoe and the 4th gripper shoe；Institute
State the first cylinder, the second cylinder driving the 4th gripper shoe and the localization machine that roll-separating mechanism also includes driving the 3rd gripper shoe
Structure, described detent mechanism voussoir, drive voussoir move up and down electric cylinder, be fixed on the 3rd slide plate with voussoir prism coordinate
Location-plate；
First dividing plate of isolation primary dust removing device and two-stage dust removal device is provided with described casing and isolates two grades
Dust arrester and the second partition of 3-stage dust-removal device,
Described primary dust removing device includes being vertically arranged in left purging plate and the right side immediately below active pinch roll and buffing roller
Purging plate, some row's leathers purging valves being separately positioned on left purging plate and right purging plate, air compressor, air inlet with
The high frequency rapid reversal valve that the gas outlet of air compressor connects, the grinding roller that buffing roller is purged clean valve and take out
Go out the first air exhauster of dust in primary dust removing device, described first dividing plate is provided with and left purging plate and right purging plate between
Space just to discharging opening, each row's leather on described left purging plate purges each row's leather purge gass on valve and right purging plate
Mouth in the vertical direction dislocation arrangement, described left purging plate is provided with right purging intralaminar part and purges, with leather, the gas that mouth connects
Chamber, described air cavity and grinding roller are cleaned valve and are connected with two gas outlets of high frequency rapid reversal valve respectively；
Described two-stage dust removal device includes vibrating screen classifier, described vibrating screen classifier include vibration screen and be located above shake
Lower vibration screen below dynamic screen cloth, the conveying direction of described upper vibration screen and lower vibration screen is contrary；Described two-stage dust removal
Device is also included by the first belt conveyor of the leather output of lower vibration screen discharge, to leather blowing on vibrating screen classifier
Pressure fan that airduct is connected with airduct and the second air exhauster that the dust shaking off vibrating screen classifier is taken away, described second every
Discharging opening is provided with plate, the exhaust end of described first belt conveyor stretches out the discharging opening on second partition；
Described 3-stage dust-removal device includes second belt conveyor relative with the first belt conveyor, is arranged on the second skin
With the first vacuum cleaning head group above conveyer, it is arranged on the 3rd belt conveyor below the second belt conveyor, setting
The second vacuum cleaning head group above the 3rd belt conveyor, it is arranged on below the 3rd belt conveyor in order to export leather
4th belt conveyor of casing and the vacuum cleaning pump being connected with the first vacuum cleaning head and the second vacuum cleaning head；
Described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes inhaling with the first air exhauster, the second air exhauster and vacuum
The cleaner unit that the air outlet of dirt pump connects.
Further, described upper vibration screen and lower vibration screen are ripple type.
Further, described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes being fixed on casing external with up-down adjustment
Adding of driven pinch roll send roller to adjust electric cylinder, and described pinch roll adjusts the piston rod end of electric cylinder and the axle of driven pinch roll
Bearing is fixedly connected.
The beneficial effects of the utility model：
1st, this utility model roll gap adjustable 3-stage dust-removal formula one side buffing machine, it passes through to arrange 3-stage dust-removal device, and removes
Dirt uses high velocity air purging, mechanical vibration and negative pressure of vacuum dust suction mode, is avoided that dust in electrostatic in dust removal process
The problem that can not remove on leather is adsorbed down in effect, the dust that 3-stage dust-removal can stick on leather after fully removing buffing,
Dust removal efficiency is high, good dedusting effect, and cleaner is lower with respect to existing brush roll replacement frequency, and service life is longer.
The spacing of the 2nd, this utility model roll gap adjustable 3-stage dust-removal formula one side buffing machine, its buffing roller and active pinch roll can
Adjusted by roll-separating mechanism, so that the grinding operation of buffing functional adaptation different-thickness leather, versatility is good.
3rd, this utility model 3-stage dust-removal formula one side buffing machine, it can send roller regulation electric cylinder up-down adjustment driven by adding
Adjusting pinch power, leather conveys good reliability for the position of pinch roll.
Brief description
Fig. 1 is the structural representation of the present embodiment roll gap adjustable 3-stage dust-removal formula one side buffing machine；
Fig. 2 is the mplifying structure schematic diagram of left purging plate and right purging plate；
Fig. 3 is the mplifying structure schematic diagram of vibration screen；
Fig. 4 is the structural representation of roll-separating mechanism；
Fig. 5 is the structural representation of detent mechanism；
Fig. 6 is the structural representation in driven pinch roll portion.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further described.
As illustrated, the present embodiment roll gap adjustable 3-stage dust-removal formula one side buffing machine, including casing 1, described casing sets
It is equipped with leather import 5；
Also include being arranged on leather enter epistome horizontal material loading platform 2, be arranged on leather enter metastomium feeding roller group,
Buffing roller 6, the leather after buffing is carried out with the primary dust removing device of dedusting, the leather out from primary dust removing device is removed
The two-stage dust removal device of dirt and the 3-stage dust-removal device that the leather out from two-stage dust removal device is carried out with dedusting；
Described feeding roller group includes active pinch roll 3 and the driven pinch roll 4 being arranged on directly over active pinch roll, described
Buffing roller is located at by active pinch roll, and the axial line of buffing roller and active pinch roll is in same level；
Described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes the roll gap regulation dress adjusting buffing roller horizontal level
Put, described roll-separating mechanism includes being arranged on buffing roller two ends the straight guide 32 outside casing, described casing both sides
It is additionally provided with the first gripper shoe 33 installing actively plus sending roller two end axles bearing and the second gripper shoe 34 and buffing roller two is installed
3rd gripper shoe 35 of end bearing block and the 4th gripper shoe 36, described 3rd gripper shoe and the 4th gripper shoe are slided with straight guide and are joined
Close；It is provided with described first gripper shoe and actively pinches roll drive motor 37, described 3rd gripper shoe is provided with buffing roller and drives
Galvanic electricity machine 38；The super of distance between detection buffing roller and active pinch roll is provided with described second gripper shoe and the 4th gripper shoe
Sonic sensor 39；Described roll-separating mechanism also includes driving the first cylinder 40 of the 3rd gripper shoe, drives the 4th gripper shoe
The second cylinder 41 and detent mechanism, described detent mechanism voussoir 42, drive the electric cylinder 43 that voussoir moves up and down, be fixed on the
Location-plate 44 with the cooperation of voussoir prism on three slide plates；
First dividing plate 7 of isolation primary dust removing device and two-stage dust removal device is provided with described casing and isolates two
Level dust arrester and the second partition 8 of 3-stage dust-removal device,
Described primary dust removing device include being vertically arranged in left purging plate 9 below buffing roller group and right purging plate 10, point
The some row's leathers not being arranged on left purging plate and right purging plate purge valves 11, air compressor 12, air inlet and air
The high frequency rapid reversal valve 13 that the gas outlet of compressor connects, the grinding roller that buffing roller is purged clean valve 14 and take out
Go out the first air exhauster 15 of dust in primary dust removing device, described first dividing plate is provided with left purging plate and right purging plate it
Between space just to discharging opening 16, each row's leather that each row's leather on described left purging plate purges on valve and right purging plate blows
Scavenging mouth in the vertical direction dislocation arrangement, described left purging plate is provided with right purging intralaminar part and purges what mouth connected with leather
Air cavity 17, described air cavity and grinding roller are cleaned valve and are connected with two gas outlets of high frequency rapid reversal valve respectively；
Described two-stage dust removal device includes vibrating screen classifier, and described vibrating screen classifier includes vibration screen 18 and is located at upper
Lower vibration screen 19 below vibration screen, the conveying direction of described upper vibration screen and lower vibration screen is contrary；Described two grades
Dust arrester is also included by the first belt conveyor 20 of the leather output of lower vibration screen discharge, to leather on vibrating screen classifier
The second air exhauster that the pressure fan 22 that is connected with airduct of airduct 21 of blowing and the dust shaking off vibrating screen classifier are taken away
23, described second partition is provided with discharging opening, the exhaust end of described first belt conveyor stretches out the discharging on second partition
Mouthful；
Described 3-stage dust-removal device includes second belt conveyor 24 relative with the first belt conveyor, is arranged on second
The first vacuum cleaning head group 25 above belt conveyor, it is arranged on the 3rd belt conveyor below the second belt conveyor
26th, be arranged on the second vacuum cleaning head group 27 above the 3rd belt conveyor, be arranged on below the 3rd belt conveyor in order to
Leather is exported the 4th belt conveyor 28 of casing and true with what the first vacuum cleaning head and the second vacuum cleaning head were connected
Suction dirt pump 29；Each vacuum cleaning head in first vacuum cleaning head group and the second vacuum cleaning head group in the present embodiment is rectangular
Shape；
Described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes inhaling with the first air exhauster, the second air exhauster and vacuum
The cleaner unit 30 that the air outlet of dirt pump connects, the cleaner unit 30 in the present embodiment is sack cleaner, certainly in different embodiments
In, cleaner unit 30 can be also the cleaner unit of the other forms such as electrostatic precipitator.
During 3-stage dust-removal formula one side buffing machine work that the present embodiment roll gap is adjustable, leather enters the leather import in casing
Afterwards, leather enters under the effect of feeding roller group and carries out buffing between active pinch roll and buffing roller.
Primary dust removing device is introduced into by the leather after buffing, the air compressor of primary dust removing device produces high pressure sky
Gas, pressure-air alternately enters leather purging valve under the control of high frequency rapid reversal valve and grinding roller cleans valve, and high pressure is empty
Gas is realized the dust of leather surface is purged when entering leather purging valve, and in the presence of high frequency rapid reversal valve
It is high frequency intermittent that leather purging valve goes out the air-flow blowing, and is thus in left purging plate and also can become ripple with the leather of right purging plate
Dust fractions on shape wave dither, therefore leather are blown away by high velocity air, and also part can be shaken off by dither, dedusting
Effect is good；Pressure-air enters grinding roller and cleans the cleaning realized during valve to buffing roller, and the cleaning to buffing roller can avoid dust
Buffing roller is piled up, and avoids buffing roller to work long hours and cause temperature too high, and then avoid causing because temperature is too high to grind
Roller and the problem of leather damage, blow afloat dedusting to buffing and cooling can keep the stable grinding performance of buffing roller.
Leather enters back into two-stage dust removal device after the process of primary dust removing device, leather warp successively in two-stage dust removal device
The upper vibration screen crossed and lower vibration screen, upper vibration screen and lower vibration screen carry out vibration to the two sides of leather respectively and remove
Dirt, so as to reduce the dust of attachment on leather further.
Leather enters back into 3-stage dust-removal device, the first vacuum cleaning of 3-stage dust-removal device after the process of two-stage dust removal device
Head group and the second vacuum cleaning head group priority are attached on the two sides of leather and carry out the aspiration of negative pressure, so as to further reduce leather
The dust of upper attachment.
The present embodiment roll gap is adjustable 3-stage dust-removal formula one side buffing machine, it passes through to arrange 3-stage dust-removal device, and dedusting is adopted
It is high velocity air purging, mechanical vibration and negative pressure of vacuum dust suction mode, in dust removal process, be avoided that dust in electrostatic interaction
The problem that lower absorption can not remove on leather, the dust that 3-stage dust-removal can stick on leather after fully removing buffing, dedusting
Rate is high, good dedusting effect, and cleaner is lower with respect to existing brush roll replacement frequency, and service life is longer.
The present embodiment roll gap is adjustable 3-stage dust-removal formula one side buffing machine, the spacing of its buffing roller and active pinch roll can be passed through
Roll-separating mechanism is adjusted, and control method is to first pass through air cylinder driven the 3rd gripper shoe and the 4th gripper shoe to move along straight guide,
When the spacing that ultrasonic sensor detects two active pinch rolls and buffing roller reaches setting value, cylinder quits work, then
Electric cylinder drives voussoir to fit with location-plate with the position of fixing each gripper shoe；Due to the roll gap between buffing roller and active pinch roll
Width scalable, so that the grinding operation of buffing functional adaptation different-thickness leather, versatility is good.
In the present embodiment, the leather import department of described casing is provided with sealing curtain 31, and dust can be avoided to run from leather import
Go out.
As the improvement to the present embodiment, described upper vibration screen and lower vibration screen are ripple type, and leather is in ripple
Type vibrosieve online mobile makes, and, more greatly it is easier to shake off dust, dust removing effects are more preferable for the jitter amplitude of leather.
As the improvement to the present embodiment, described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes being fixed on casing
External send roller to adjust electric cylinder 45 with adding of the driven pinch roll of up-down adjustment, and described pinch roll adjusts the piston rod end of electric cylinder
It is fixedly connected with the bearing block 46 of driven pinch roll.
This improvement makes it possible to by plus send the position of the roller regulation driven pinch roll of electric cylinder up-down adjustment to adjust pinch power,
Leather conveys good reliability.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted, although ginseng
According to preferred embodiment, this utility model is described in detail, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, the objective without deviating from technical solutions of the utility model and model
Enclose, it all should be covered in the middle of right of the present utility model.
Claims (3)
1. a kind of roll gap adjustable 3-stage dust-removal formula one side buffing machine, including casing it is characterised in that：It is provided with skin in described casing
Leather import；
Also include being arranged on leather to enter the horizontal material loading platform in epistome, be arranged on leather and enter the feeding roller group of metastomium, buffing
Roller, the leather after buffing is carried out with the primary dust removing device of dedusting, dedusting is carried out to the leather out from primary dust removing device
Two-stage dust removal device and the 3-stage dust-removal device that the leather out from two-stage dust removal device is carried out with dedusting；
Described feeding roller group includes active pinch roll and the driven pinch roll being arranged on directly over active pinch roll, described buffing roller
By active pinch roll, and the axial line of buffing roller and active pinch roll is in same level；
Described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes adjusting the roll-separating mechanism of buffing roller horizontal level, institute
State roll-separating mechanism to include being arranged on buffing roller two ends the straight guide outside casing, described casing both sides are additionally provided with
Install actively plus send the first gripper shoe of roller two end axles bearing and the second gripper shoe and buffing roller two end axles bearing is installed the
Three gripper shoes and the 4th gripper shoe, described 3rd gripper shoe and the 4th gripper shoe are slidably matched with straight guide；Described first support
It is provided with plate and actively pinches roll drive motor, described 3rd gripper shoe is provided with buffing roll drive motor；Described second
The ultrasonic sensor of distance between detection buffing roller and active pinch roll is provided with fagging and the 4th gripper shoe；Described roll gap
Adjusting apparatus also include the first cylinder driving the 3rd gripper shoe, the second cylinder driving the 4th gripper shoe and detent mechanism, institute
State detent mechanism voussoir, drive voussoir move up and down electric cylinder, be fixed on the 3rd slide plate with voussoir prism cooperation determine
Position plate；
First dividing plate of isolation primary dust removing device and two-stage dust removal device is provided with described casing and isolates two-stage dust removal
Device and the second partition of 3-stage dust-removal device,
Described primary dust removing device includes being vertically arranged in left purging plate and the right purging immediately below active pinch roll and buffing roller
Plate, some row's leather purging valves being separately positioned on left purging plate and right purging plate, air compressor, air inlet and air
The high frequency rapid reversal valve that the gas outlet of compressor connects, the grinding roller that buffing roller is purged clean valve and extract one out
In level dust arrester, the first air exhauster of dust, described first dividing plate is provided with space and left purging plate and right purging plate between
Just to discharging opening, each row's leather purging valve that each row's leather on described left purging plate purges on valve and right purging plate exists
Dislocation arrangement on vertical direction, described left purging plate is provided with right purging intralaminar part and purges the air cavity that mouth connects, institute with leather
State air cavity and grinding roller is cleaned valve and is connected with two gas outlets of high frequency rapid reversal valve respectively；
Described two-stage dust removal device includes vibrating screen classifier, and described vibrating screen classifier includes vibration screen and is located at upper vibrosieve
The lower vibration screen of side off the net, the conveying direction of described upper vibration screen and lower vibration screen is contrary；Described two-stage dust removal device
Also include the first belt conveyor of leather output that lower vibration screen is discharged, the wind dried to leather on vibrating screen classifier
Manage the second air exhauster that the pressure fan being connected with airduct and the dust shaking off vibrating screen classifier are taken away, described second partition
On be provided with discharging opening, the exhaust end of described first belt conveyor stretches out the discharging opening on second partition；
Described 3-stage dust-removal device includes second belt conveyor relative with the first belt conveyor, to be arranged on the second belt defeated
Send the first vacuum cleaning head group above machine, be arranged on the 3rd belt conveyor below the second belt conveyor, be arranged on
The second vacuum cleaning head group above three belt conveyors, it is arranged on below the 3rd belt conveyor in order to leather is exported casing
The 4th belt conveyor and the vacuum cleaning pump being connected with the first vacuum cleaning head and the second vacuum cleaning head；
Described roll gap adjustable 3-stage dust-removal formula one side buffing machine also includes and the first air exhauster, the second air exhauster and vacuum cleaning pump
Air outlet connect cleaner unit.
2. roll gap according to claim 1 adjustable 3-stage dust-removal formula one side buffing machine it is characterised in that：Described upper vibrosieve
Net and lower vibration screen are ripple type.
3. roll gap according to claim 1 adjustable 3-stage dust-removal formula one side buffing machine it is characterised in that：Also include being fixed on
Casing external send roller to adjust electric cylinder with adding of the driven pinch roll of up-down adjustment, and described pinch roll adjusts the tailpiece of the piston rod of electric cylinder
Portion is fixedly connected with the bearing block of driven pinch roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956167.XU CN205954031U (en) | 2016-08-26 | 2016-08-26 | Three -stage dust -removal formula single face buffing machine that clearning between rolls is adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620956167.XU CN205954031U (en) | 2016-08-26 | 2016-08-26 | Three -stage dust -removal formula single face buffing machine that clearning between rolls is adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205954031U true CN205954031U (en) | 2017-02-15 |
Family
ID=57980291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620956167.XU Expired - Fee Related CN205954031U (en) | 2016-08-26 | 2016-08-26 | Three -stage dust -removal formula single face buffing machine that clearning between rolls is adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205954031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148580A (en) * | 2016-08-26 | 2016-11-23 | 重庆绿草缘皮革制品有限公司 | 3-stage dust-removal formula one side buffing system that roll gap is adjustable |
| CN109576403A (en) * | 2019-01-28 | 2019-04-05 | 朱俊伟 | A kind of buffing machine for leather processing production line |
-
2016
- 2016-08-26 CN CN201620956167.XU patent/CN205954031U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148580A (en) * | 2016-08-26 | 2016-11-23 | 重庆绿草缘皮革制品有限公司 | 3-stage dust-removal formula one side buffing system that roll gap is adjustable |
| CN106148580B (en) * | 2016-08-26 | 2022-05-24 | 唐莉 | Three-stage dust removal type single-sided leather grinding system with adjustable roll gap |
| CN109576403A (en) * | 2019-01-28 | 2019-04-05 | 朱俊伟 | A kind of buffing machine for leather processing production line |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |