CN206646126U - A kind of buffing machine - Google Patents
A kind of buffing machine Download PDFInfo
- Publication number
- CN206646126U CN206646126U CN201720234622.XU CN201720234622U CN206646126U CN 206646126 U CN206646126 U CN 206646126U CN 201720234622 U CN201720234622 U CN 201720234622U CN 206646126 U CN206646126 U CN 206646126U
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- China
- Prior art keywords
- roller
- buffing
- cleaning
- board
- storage tank
- Prior art date
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Abstract
It the utility model is related to leather production equipment field, more particularly to a kind of buffing machine, include board, loading bay located at board front end and the discharge pedestal located at board rear end, feed roller and discharge roller are respectively equipped with described loading bay and discharge pedestal, the both sides of described board it is vertical be provided with mounting bracket, mounting bracket is provided with buffing roller, also include cooling mechanism, the cooling mechanism includes storage tank and the let off roll being be arranged in parallel with feed roller, described storage tank is located between loading bay and let off roll, described the bottom of storage tank was provided with damping roller, side wall above storage tank is provided with level sensor, the top of described buffing roller is provided with rolls out capable hold-down roller with buffing, the hold-down roller is provided with the governor motion of adjustable distance between hold-down roller and buffing roller, cleaning agency is provided between described buffing roller and discharge roller.The utility model provides a kind of buffing machine for being avoided that the heating of buffing roller.
Description
Technical field
Leather production equipment field is the utility model is related to, more particularly to a kind of buffing machine.
Background technology
, it is necessary to be handled by buffing machine the reconditioning of leather surface every trade in leather production process, to improve the outer of leather
Appearance quality.
Traditional buffing machine includes casing, and casing is provided with feeding platform and outfeed platforms, buffing roller, skin are provided with casing
Leather is entered in casing by buffing roller buffing by the feed roller on feeding platform, is then received by the discharge roller on outfeed platforms
Material, during leather skiving, buffing roller would generally surface heat, get off for a long time, can cause the damage of buffing machine, shorten mill
The service life of leather machine, how to solve the problems, such as the heating of buffing roller surface, be the utility model main direction of studying.
The content of the invention
In order to overcome the shortcomings of background technology, the utility model provides a kind of buffing machine for being avoided that the heating of buffing roller.
Technical scheme is used by the utility model：A kind of buffing machine, include board, the charging located at board front end
Platform and the discharge pedestal located at board rear end, feed roller and discharge roller are respectively equipped with described loading bay and discharge pedestal, it is described
The both sides of board it is vertical be provided with mounting bracket, mounting bracket is provided with buffing roller, also includes cooling mechanism, the cooling mechanism includes
There are storage tank and the let off roll being be arranged in parallel with feed roller, described storage tank is located between loading bay and let off roll, described
The bottom of storage tank was provided with damping roller, and the side wall above storage tank is provided with level sensor, the top of described buffing roller be provided with
Buffing rolls out capable hold-down roller, and the hold-down roller is provided with the governor motion of adjustable distance between hold-down roller and buffing roller, described
Buffing roller and discharge roller between be provided with cleaning agency.
Preferably, described governor motion includes adjusting handle, positioning sleeve, locating rod and regulation spring, described peace
The top shelved is respectively equipped with sliding cavity, and one end is provided with a screwed hole turned on sliding cavity at the top of mounting bracket, and the other end is set
There is the spring cavity turned on sliding cavity, described positioning sleeve is in sliding cavity and can reciprocatingly slided along cavity wall is slided, described
Adjusting handle be at the top of mounting bracket and adjusting handle is provided with threaded rod, the other end that the threaded rod is connected with adjusting handle
It is threadedly coupled and is extended in sliding cavity with screwed hole and is fixedly connected with positioning sleeve towards screwed hole one end, described locating rod one
End is fixedly connected in sliding cavity with positioning sleeve towards spring cavity one end, and the other end is in spring cavity, described regulation bullet
Spring is in one end in spring cavity and contradicts connection with locating rod, and the other end is fixedly connected with spring cavity bottom, described pressure bottom roller
Both ends are connected by roll shaft with positioning sleeve respectively, and bearing is provided between roll shaft and positioning sleeve.
Preferably, described cleaning agency includes cleaning roller and located at some cleaning brush for cleaning roller surface, described
Both sides that board is between buffing roller and discharge roller distinguish it is vertical be provided with fixed mount, the both ends of described cleaning roller lead to respectively
Cross cleaning roll shaft to be connected with fixed mount, one of fixed mount is provided with cleaning cleaning electricity of the roll shaft by motor axis connection
Machine, described cleaning roll shaft lower section are provided with the dust collecting bin being fixedly connected with board, and described dust collecting bin bottom is provided with
The surface groove turned on dust collecting bin.
Preferably, tank wall is provided with automatic water-adding valve at the top of described storage tank, and bottom is provided with blowoff valve.
Preferably, described level sensor is provided with fixed seat, and the fixed seat is connected by screw with storage tank side wall.
Preferably, transmission mechanism is also included, the transmission mechanism includes driving motor, master gear and driven gear, institute
The driving motor stated is located at board bottom, and described master gear is connected with driving motor by driving motor axle, described
Driven gear is connected with master gear by idler gear, and the both ends of described buffing roller are connected by buffing roll shaft and mounting bracket
Connect, described driven gear is connected by transmission coupling with one of buffing roll shaft, described buffing roll shaft and mounting bracket
Between be provided with buffing roller bearing.
Preferably, it is provided between described cleaning roller and discharge roller and aided in leather roller, described board sets and aided in leather
The both sides of roller are respectively equipped with mounting seat, and the described both ends for aiding in removing from office roller were respectively by aiding in leather roll shaft to connect with mounting seat
Connect.
The beneficial effects of the utility model are：There is provided cooling mechanism, the cooling mechanism includes storage tank and crosses damping roller,
Leather first passes through the water-soaked cooling in storage tank, then passes through buffing roller buffing, leather again before by buffing roller buffing
When through buffing roller buffing, because leather is wet state, therefore more traditional dry grinding is compared, and buffing roller will not heat up, Er Qiechuan
The dry grinding of system, substantial amounts of dust can be produced, therefore, traditional buffing machine needs to install deduster, and the utility model is due to leather
Wet state, thus will not caused by scurf be also wet state, will not fly upward everywhere, when can be bonded at leather, therefore, this reality
Dress state is cleaned with being provided with new, by being cleaned down located at the cleaning brush cleaned on axle to the scurf on leather, is compared
Traditional deduster, sets more simple, and cost is lower, and the setting of governor motion, can adjust hold-down roller and buffing roller it
Between distance, can be directed to different-thickness leather be adjusted, promote leather skiving to reach best state.
The utility model embodiment is described further below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the overall structure figure of the utility model embodiment；
Fig. 2 is the partial sectional view of the utility model embodiment.
Embodiment
As Figure 1-Figure 2, the utility model provides the utility model and provides a kind of new buffing machine, include board 1,
Loading bay 11 located at the front end of board 1 and the discharge pedestal 12 located at the rear end of board 1, on described loading bay 11 and discharge pedestal 12 point
Not She You feed roller 13 and discharge roller 14, the both sides of described board 1 it is vertical be provided with mounting bracket 15, mounting bracket 15, which is provided with, to be ground
Roller 2 is removed from office, also includes cooling mechanism 3, the cooling mechanism 3 includes storage tank 31 and the let off roll being be arranged in parallel with feed roller 13
32, described storage tank 31 is located between loading bay 11 and let off roll 32, and the described bottom of storage tank 31 was provided with the (storage of damping roller 33
The two bottom sides wall of water tank was provided with damping roller seat, crosses damping roller and is connected by crossing damping roller axle with crossing damping roller seat), the top of storage tank 31
Side wall is provided with level sensor 34, and the top of described buffing roller 2 is provided with the hold-down roller 21 parallel with buffing roller 2, the hold-down roller
21 are provided with the governor motions 4 of adjustable distance between hold-down roller 21 and buffing roller 2, described buffing roller 2 and discharge roller 14 it
Between be provided with cleaning agency 5, in such scheme, storage tank 31 crosses damping roller 33 and is arranged on the leaching of the bottom of storage tank 31 built with cold water
In cold water, leather 10 is unreeled by let off roll 32 and then crosses water by crossing damping roller, and leather passes through again after cold water soaks cooling
Feed roller 13 enters the buffing of buffing roller 2, and after so setting, leather has first passed around cold water cooling, particularly summer, leather drying
When temperature also can be higher, temperature can lower after subcooled water crosses water, then by buffing when, because leather self-temperature compared with
Low and be wet state, temperature will not raise during being rubbed with buffing roller 2, therefore the temperature of buffing roller 2 will not also rise
Height, be not in the problem of buffing roller 2 causes damage because temperature raises, and the setting of cleaning agency 5, then it is that will be produced after buffing
Chip clean out, traditional buffing roller 2 is because being dry grinding, therefore chip can be flown upward everywhere, causes worker to suck substantial amounts of dust,
And indoor environment can not also ensure, therefore traditional buffing machine is all to install deduster, in the utility model, because leather is
Wet, therefore caused chip will not be flown upward, the chip being bonded on leather is cleaned out by cleaning agency 5, and hold-down roller
21 setting is then that leather is pressed between hold-down roller 21 and buffing roller 2, promotes leather stress by the buffing of buffing roller 2, buffing roller 2
Rotational band move the rotation of hold-down roller 21, but the leather of different-thickness, or the skiving thickness requirement of leather are different, such as
The distance between fruit buffing roller 2 and hold-down roller 21 can not be adjusted, and can not just ensure buffing quality, and therefore, the utility model is set
Governor motion 4, exactly solve the problem, after ensureing that buffing quality, leather clean, discharge and wind through discharge roller, can subsequently pass through
Drying machine drying, overall structure is simple, realizes leather soaking cooling, buffing and cleans integration.
In the utility model embodiment, described governor motion 4 includes adjusting handle 41, positioning sleeve 42, locating rod
43 and regulation spring 44, the top of described mounting bracket 15 be respectively equipped with sliding cavity 45, the top one end of mounting bracket 15 is provided with one
The screwed hole 46 turned on sliding cavity 45, the other end is provided with the spring cavity 47 turned on sliding cavity 45, at described positioning sleeve 42
It can reciprocatingly slide in sliding cavity 45 and along the inwall of sliding cavity 45, described adjusting handle 41 is in the top of mounting bracket 15 and adjusted
Handwheel 41 is provided with threaded rod 48, and the threaded rod 48 is threadedly coupled and prolonged with the other end that adjusting handle 41 is connected with screwed hole 46
Extend and be fixedly connected in sliding cavity 45 with one end of positioning sleeve 42 towards screwed hole 46, described one end of locating rod 43, which is in, to be slided
It is fixedly connected in chamber 45 with positioning sleeve 42 towards the one end of spring cavity 47, the other end is in spring cavity 47, described regulation spring
44 contradict connection in one end in spring cavity 47 and locating rod 43, and the other end is fixedly connected with the bottom of spring cavity 47, described pressure
The both ends of tight roller 21 are connected by roll shaft 211 with positioning sleeve 42 respectively, and (side of mounting bracket 15 is provided with what is turned on sliding cavity 45
Chute 49, roll shaft 211 are connected the other end with hold-down roller 21 and extended to outside chute 49) axle is provided between roll shaft 211 and positioning sleeve 42
212 are held, in such scheme, adjusting handle 41, which rotates, drives threaded rod 48 to be rotated in screwed hole 46, threaded rod 48 and positioning
The connection of set 42, therefore threaded rod 48 can drive positioning sleeve 42 to be slided in sliding cavity 45 while rotating, due to positioning sleeve 42
Contradicted by locating rod 43 and regulation spring 44, and hold-down roller 21 is connected with positioning sleeve 42, therefore, when adjusting handle 41 rotates forward
When, positioning sleeve 42 promotes locating rod 43 to be pushed spring 44 is adjusted, and hold-down roller 21 and the distance between buffing roller 2 are nearer, fits
With relatively thin leather, it is adapted to the thicker leather of needs skiving in other words, adjusting handle 41 inverts, and positioning sleeve 42 is towards threaded rod 48
Direction is slided, and at this moment hold-down roller 21 and buffing roller 2 is distant, is at this moment suitable for thicker leather, in other words suitable skiving
Relatively thin leather, fixation is contradicted by adjusting spring 44 after regulation, by the way that in this way, regulation is very simple, rotation adjusts hand
Wheel 41, and after so setting, hold-down roller 21 coordinates buffing roller 2, make leather uniformly from hold-down roller 21 and buffing roller 2 it
Between slow transit through, can obtain leather skiving highly uniform, entire volume leather thicknesses are consistent.
In the utility model embodiment, described cleaning agency 5 includes cleaning roller 51 and located at the surface of cleaning roller 51
Some cleaning brushes 52, both sides that described board 1 is between buffing roller 2 and discharge roller 14, which are distinguished, vertical is provided with fixed mount
53, the both ends of described cleaning roller 52 are connected by cleaning roll shaft 54 with fixed mount 53 respectively, are set on one of fixed mount 53
Have with cleaning cleaning motor 55 of the roll shaft 53 by motor axis connection, the described lower section of cleaning roll shaft 53 is provided with to be fixed with board 1
The dust collecting bin 56 of connection, the described bottom of dust collecting bin 56 are provided with the surface groove 57 turned on dust collecting bin 56,
In such scheme, cleaning agency 5 is a cleaning roller 51 and some cleaning brushes 52 on cleaning roller 51, due to leather soaking
Afterwards, chip caused by the buffing of buffing roller 2 is also wet state, therefore chip will not be flown upward everywhere, can so ensure indoor ring
Border, but wet chip can be bonded on leather, therefore brushed off the chip on leather using cleaning brush 52, compared to installation dust suction
Device, such cost is lower, and cleaning brush 52, which falls behind chip brush, to be directly collected into dust collecting bin 56, certainly, ash herein
Dirt collecting box can be a larger dust collecting bin, can be simultaneously below buffing roller and cleaning roller, when buffing roller is ground
When chip is more caused by leather, a meeting Automatic-falling part, directly fallen to after coming off in dust collecting bin, Ran Houtong
Cross surface groove 57 and be flowed into processing, convenience simple in construction in dustbin.
In the utility model embodiment, the described top tank wall of storage tank 31 is provided with automatic water-adding valve 35, and bottom is set
There is blowoff valve 36, described level sensor 34 is provided with fixed seat 341, and the fixed seat 341 passes through screw 342 and storage tank 31
Side wall is connected, and in such scheme, automatic water-adding valve 35 is connected with water pipe, because of leather in storage tank 31 mistake water, under long-time
Come, water can be dirty, produces dirt, therefore, water will be changed, then sewage is passed through by the blowdown of blowoff valve 36 at the bottom of storage tank 31
The automatic watering of automatic water-adding valve 35, one side of the buffing machine are provided with PLC (not shown), and automatic water-adding valve 35 is and PLC
Controller connection, therefore when changing water, PLC can control the automatic watering of automatic water-adding valve 35, and automatic water-adding valve 35 is
Prior art, it is not specifically described, automatic water-adding valve 35 is arranged on storage tank 31 by mounting seat, and level sensor 34 is anti-
Only storage tank 31 adds water overfill and overflows water tank, and level sensor 34 electrically connects with PLC, after so setting, it is not necessary to
Manually aside stare at always, manpower can be saved, make buffing machine intelligent.
In the utility model embodiment, also include transmission mechanism 7, the transmission mechanism 7 includes driving motor 71, master
Gear 72 and driven gear 73, described driving motor 71 are located at the bottom of board 1, and described master gear 72 is logical with driving motor 71
Cross driving motor axle to be connected, described driven gear 73 is connected with master gear 72 by idler gear, described mill
The both ends of leather roller 2 are connected by buffing roll shaft 22 with mounting bracket 15, and described driven gear 73 is by transmission coupling and wherein
One buffing roll shaft 22 connects, and buffing roller bearing 221 is provided between described buffing roll shaft 22 and mounting bracket 15, in such scheme
In, master gear 72 engages with idler gear, and idler gear engages with driven gear 73, and driving motor 71 is electrically connected with PLC
Connect, promote buffing to automate, the cleaning brush motor 55 in the utility model also electrically connects with PLC, by PLC control
The operating of whole buffing machine is made, makes entire machine intelligent, manpower can be saved.
It is provided with the utility model embodiment, between described cleaning roller 51 and discharge roller 14 and aided in leather roller 8, it is described
Board set the both sides for aiding in removing from office roller 8 to be respectively equipped with mounting seat 81, described aid in the both ends of leather roller 8 respectively by auxiliary
Helped leather roll shaft 82 to be connected with mounting seat 81, in such scheme, aided in removing from office the setting of roller 8, and cleaning cleaning agency 5
When, it can clean more clean.
Every technical staff's notice：Although the utility model describes according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that invention, any repacking with the utility model thought, will all include this specially
In sharp scope of patent protection.
Claims (7)
1. a kind of buffing machine, include board, the loading bay located at board front end and the discharge pedestal located at board rear end, it is described
Be respectively equipped with feed roller and discharge roller on loading bay and discharge pedestal, the both sides of described board it is vertical be provided with mounting bracket, install
Frame is provided with buffing roller, it is characterised in that：Also include cooling mechanism, the cooling mechanism includes storage tank and rolled out with charging
The let off roll that row is set, described storage tank are located between loading bay and let off roll, and described the bottom of storage tank was provided with damping roller,
Side wall above storage tank is provided with level sensor, and the top of described buffing roller is provided with rolls out capable hold-down roller with buffing, should
Hold-down roller is provided with the governor motion of adjustable distance between hold-down roller and buffing roller, is set between described buffing roller and discharge roller
There is cleaning agency.
A kind of 2. buffing machine according to claim 1, it is characterised in that：Described governor motion include adjusting handle,
Positioning sleeve, locating rod and regulation spring, sliding cavity is respectively equipped with above described mounting bracket, and one end is provided with one at the top of mounting bracket
The individual screwed hole turned on sliding cavity, the other end are provided with the spring cavity turned on sliding cavity, and described positioning sleeve is in sliding cavity
It is interior and can along slide cavity wall reciprocatingly slide, described adjusting handle be in mounting bracket top and adjusting handle be provided with screw thread
Bar, the other end that the threaded rod is connected with adjusting handle be threadedly coupled with screwed hole and extend in sliding cavity with positioning sleeve direction
One end of screwed hole is fixedly connected, and described locating rod one end, which is in fix towards spring cavity one end with positioning sleeve in sliding cavity, to be connected
Connect, the other end is in spring cavity, and described regulation spring, which is in one end and locating rod in spring cavity and contradicted, to be connected, the other end with
Spring cavity bottom is fixedly connected, and the both ends of described hold-down roller are connected by roll shaft with positioning sleeve respectively, roll shaft and positioning sleeve it
Between be provided with bearing.
A kind of 3. buffing machine according to claim 1 or 2, it is characterised in that：Described cleaning agency includes cleaning roller
And located at some cleaning brushes for cleaning roller surface, it is vertical that described board is in the difference of the both sides between buffing roller and discharge roller
Provided with fixed mount, the both ends of described cleaning roller are connected by cleaning roll shaft with fixed mount respectively, are set on one of fixed mount
Have with cleaning cleaning motor of the roll shaft by motor axis connection, the ash being fixedly connected with board is provided with below described cleaning roll shaft
Dirt collecting box, described dust collecting bin bottom are provided with the surface groove turned on dust collecting bin.
A kind of 4. buffing machine according to claim 1, it is characterised in that：Tank wall is provided with automatic at the top of described storage tank
Priming valve, bottom are provided with blowoff valve.
A kind of 5. buffing machine according to claim 1 or 4, it is characterised in that：Described level sensor, which is provided with, to be fixed
Seat, the fixed seat are connected by screw with storage tank side wall.
A kind of 6. buffing machine according to claim 1 or 2, it is characterised in that：Also include transmission mechanism, the transmission mechanism
Include driving motor, master gear and driven gear, described driving motor is located at board bottom, described master gear and transmission
Motor is connected by driving motor axle, and described driven gear is connected with master gear by idler gear, described
The both ends of buffing roller are connected by buffing roll shaft with mounting bracket, and described driven gear passes through transmission coupling and one of mill
Roll shaft connection is removed from office, buffing roller bearing is provided between described buffing roll shaft and mounting bracket.
A kind of 7. buffing machine according to claim 3, it is characterised in that：It is provided between described cleaning roller and discharge roller auxiliary
Leather roller was helped, described board sets the both sides for aiding in removing from office roller to be respectively equipped with mounting seat, the described both ends for aiding in removing from office roller
Respectively by aiding in leather roll shaft to be connected with mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234622.XU CN206646126U (en) | 2017-03-12 | 2017-03-12 | A kind of buffing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720234622.XU CN206646126U (en) | 2017-03-12 | 2017-03-12 | A kind of buffing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206646126U true CN206646126U (en) | 2017-11-17 |
Family
ID=60281448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720234622.XU Expired - Fee Related CN206646126U (en) | 2017-03-12 | 2017-03-12 | A kind of buffing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206646126U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004792A (en) * | 2018-01-20 | 2018-05-08 | 海宁大红马布业有限公司 | A kind of artificial leather processing and manufacturing decorticating mill |
| CN108467906A (en) * | 2018-05-07 | 2018-08-31 | 浙江富邦集团有限公司 | A kind of efficient leather buffing machine |
| CN109048344A (en) * | 2018-08-06 | 2018-12-21 | 盐城捷纳福传动科技有限公司 | A kind of conveyer belt polishing welding recyclable device |
| CN110714100A (en) * | 2019-11-20 | 2020-01-21 | 古俊朋 | Underwater dust removal leather buffing machine |
| CN112391503A (en) * | 2019-08-16 | 2021-02-23 | 陈家其 | Water squeezing machine with flow guide mechanism |
| CN113106173A (en) * | 2021-04-16 | 2021-07-13 | 胡雨 | Automobile interior leather bonding connection processing method |
| CN114854907A (en) * | 2022-05-11 | 2022-08-05 | 晋江市新凌皮革工艺有限公司 | Cow leather pretreatment processing equipment and processing technology thereof |
-
2017
- 2017-03-12 CN CN201720234622.XU patent/CN206646126U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004792A (en) * | 2018-01-20 | 2018-05-08 | 海宁大红马布业有限公司 | A kind of artificial leather processing and manufacturing decorticating mill |
| CN108467906A (en) * | 2018-05-07 | 2018-08-31 | 浙江富邦集团有限公司 | A kind of efficient leather buffing machine |
| CN108467906B (en) * | 2018-05-07 | 2024-03-26 | 浙江富邦汽车内饰科技有限公司 | Efficient leather buffing machine |
| CN109048344A (en) * | 2018-08-06 | 2018-12-21 | 盐城捷纳福传动科技有限公司 | A kind of conveyer belt polishing welding recyclable device |
| CN109048344B (en) * | 2018-08-06 | 2020-05-12 | 盐城捷纳福传动科技有限公司 | Conveyer belt polishing welding recovery unit |
| CN112391503A (en) * | 2019-08-16 | 2021-02-23 | 陈家其 | Water squeezing machine with flow guide mechanism |
| CN110714100A (en) * | 2019-11-20 | 2020-01-21 | 古俊朋 | Underwater dust removal leather buffing machine |
| CN110714100B (en) * | 2019-11-20 | 2021-05-28 | 古俊朋 | Underwater dust removal leather buffing machine |
| CN113106173A (en) * | 2021-04-16 | 2021-07-13 | 胡雨 | Automobile interior leather bonding connection processing method |
| CN113106173B (en) * | 2021-04-16 | 2022-06-10 | 江苏延利汽车零部件有限公司 | Automobile interior leather bonding connection processing method |
| CN114854907A (en) * | 2022-05-11 | 2022-08-05 | 晋江市新凌皮革工艺有限公司 | Cow leather pretreatment processing equipment and processing technology thereof |
| CN114854907B (en) * | 2022-05-11 | 2023-08-29 | 晋江市新凌皮革工艺有限公司 | Cow leather pretreatment processing equipment and processing technology thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 Termination date: 20190312 |