CN114887844A - Feeding device of coating machine - Google Patents
Feeding device of coating machine Download PDFInfo
- Publication number
- CN114887844A CN114887844A CN202210696277.7A CN202210696277A CN114887844A CN 114887844 A CN114887844 A CN 114887844A CN 202210696277 A CN202210696277 A CN 202210696277A CN 114887844 A CN114887844 A CN 114887844A
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- China
- Prior art keywords
- steady
- storage box
- flow
- coating machine
- feeding device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 62
- 239000011248 coating agent Substances 0.000 title claims abstract description 61
- 238000003860 storage Methods 0.000 claims abstract description 54
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000012530 fluid Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 27
- 239000003292 glue Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 239000003381 stabilizer Substances 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- -1 and simultaneously Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Coating Apparatus (AREA)
Abstract
A feeding device of a coating machine, which aims to solve the problems that the prior art has uneven feeding, easily causes raw material waste and possibly causes substrate damage; the technical scheme for solving the technical problem includes that the device comprises a storage box and a flow stabilizing body, wherein the storage box is communicated with the flow stabilizing body through a discharging pipe, a feeding hole is formed in the lower end of the flow stabilizing body, an opening is formed in the side wall of the flow stabilizing body, a flow stabilizing support is arranged in the flow stabilizing body and comprises a flow baffle plate and a flow dividing frame, an air cylinder is arranged on the side face of the storage box, a movable plate is arranged at the bottom of the storage box, a through hole is formed in the movable plate, and the air cylinder can push the movable plate to move in the storage box so as to achieve communication and plugging of the storage box and the discharging pipe.
Description
Technical Field
The invention relates to the technical field of coating machine equipment, in particular to a coating machine feeding device.
Background
The coating machine is mainly used for the surface coating process production of films, paper and the like, and the coating machine is used for coating a layer of glue, paint or ink with a specific function on a coiled substrate, drying and then rolling.
In the production, the material loading of the coating machine mainly comprises sizing, coating and the like, and in the process of sizing or coating, the most important factor is the uniformity of sizing/coating, further, the coating quality can be well ensured, the gluing/coating mechanisms of the existing coating machine are various, but most of the gluing/coating mechanisms are used for dropping glue solution/coating solution on a substrate in a dropping mode, then the glue solution is evenly scraped by a scraper, which is simple and easy to realize, but has uneven hidden trouble, meanwhile, the structure easily causes the waste of glue solution/coating solution, and simultaneously adopts a scraper structure, the matrix is also abraded to a certain extent, and in the actual production process, the rotating speed of the roller of the coating machine needs to be adjusted according to different working conditions under different conditions, so that the same glue solution/coating solution amount also needs to be adjusted correspondingly.
Therefore, the design of the feeding device which can well control the usage amount of the glue solution/coating solution according to different rotating speeds of the roller and can uniformly coat the glue solution/coating solution is very necessary.
Disclosure of Invention
The invention aims to provide a feeding device of a coating machine, which aims to solve the problems that in the prior art, feeding is not uniform, raw materials are easy to waste, and simultaneously, substrates are possibly damaged.
The invention provides a coating machine feeding device, which comprises a storage box, wherein a steady fluid is arranged below the storage box, the steady fluid is of a box structure which is obliquely arranged, the storage box is communicated with the upper end of the steady fluid through a discharge pipe, a feeding hole is arranged at the lower end of the steady fluid, an opening is formed in the upward side wall of the steady fluid, an L-shaped steady flow support which is put into the steady fluid from the opening part is arranged inside the steady fluid, the steady flow support comprises a flow baffle which is attached to the lower side wall of the steady fluid and a flow dividing frame which is vertical to the flow baffle, an air cylinder is arranged on the side surface of the storage box, a slidable movable plate is arranged at the bottom of the storage box, a through hole is formed in the movable plate, a slidable piston is arranged in the air cylinder, and a piston rod is connected to one side of the piston, which faces the storage box, the other end of the piston rod penetrates through the side wall of the storage box and is connected with the movable plate, and the piston rod can push the movable plate to move in the storage box, so that the storage box is communicated with the discharge pipe and is blocked.
Preferably, a spring is connected between one end of the piston, which is far away from the material storage box, and the bottom wall of the cylinder, a push rod is arranged at one end of the piston, which is far away from the material storage box, and the other end of the push rod penetrates through the bottom wall of the cylinder and is arranged outside the cylinder.
Preferably, the outer side of the cylinder is provided with a cam, the cam can be contacted with the push rod when pushing the push rod to move, and when the push rod moves to the rightmost side of the displacement, the return stroke of the push rod is not contacted with the cam.
Preferably, a plurality of air holes which are uniformly distributed circumferentially are formed in the side wall, close to the bottom wall of the air cylinder, of the air cylinder.
Preferably, the lateral wall that opening of steady fluid be was equipped with the baffle, the reposition of redundant personnel frame on the steady flow support is placed with the laminating of baffle, steady fluid's opening position be equipped with the apron, the lateral wall at reposition of redundant personnel frame and steady fluid opening position on be equipped with the stopper, the apron place and realize the cover to steady fluid open-ended on the stopper, the apron on be equipped with the handle.
Preferably, the end surface of the flow baffle is provided with a plurality of guide grooves which are distributed at intervals along the front and back of the flow baffle.
Preferably, a stirring shaft which is transversely arranged is arranged in the storage box.
Preferably, the side wall of the storage box is provided with a mounting bracket, and the mounting bracket is provided with a bolt hole.
Preferably, the shunt frame is provided with a plurality of support rods distributed at intervals front and back to form a grid structure.
Preferably, an electromagnetic valve is arranged on the discharge pipe, and the inclination angle of the steady fluid is 20-40 degrees.
The invention realizes the communication and the sealing of the storage box and the steady flow body by designing the steady flow body and the steady flow support which are obliquely arranged, by designing the movable plate in the storage box and pushing the movable plate by the air cylinder piston rod pushed by the cam, the same amount of coating liquid can flow out from the storage box every time of communication, by connecting the cam and the roller of the coating machine by the transmission mechanism, the rotation of the roller can drive the rotation of the cam, when the rotation speed of the roller is higher, the communication times of the storage box and the steady flow body can be improved in the same time, the liquid outlet amount is further improved, when the rotation speed of the roller is higher, the larger coating liquid amount in the steady flow body can be ensured, the enough using amount of the coating liquid can be ensured, and simultaneously when the coating liquid enters the steady flow body, the steady flow effect of the coating liquid can be well realized by the design of the steady flow support, the coating liquid can uniformly flow on the base layer, the coating effect is prevented from being influenced by the uneven coating caused by dripping.
In summary, the technical scheme of the invention at least has the following beneficial effects:
1. the using amount of the coating liquid can be controlled according to the rotating speed of the roller of the coating machine, so that waste is avoided;
2. through the design of the air holes and the springs on the air cylinder, the slow return speed of the movable plate is ensured each time, and the discharge amount of the coating liquid is ensured each time;
3. through the design of the fluid stabilizing and the fluid stabilizing bracket, the coating liquid can be uniformly distributed front and back, so that the coating liquid is in a waterfall form when falling down, and the phenomenon of non-uniform coating is avoided;
4. the coating machine can be well combined with a coating machine for use, and can be suitable for the coating machines of different models.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an overall front sectional view of the present invention.
Fig. 2 is a schematic top view of the present invention.
FIG. 3 is a schematic top view of the movable plate portion of the storage box of the present invention.
Fig. 4 is an enlarged view of a portion of fig. 1 of the present invention.
Fig. 5 is a side schematic view of a flow stabilizer bracket of the present invention.
Fig. 6 is a schematic top view of the flow stabilizer bracket of the present invention.
Fig. 7 is a schematic top view of the flow stabilizer of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As can be seen from FIGS. 1-7, the invention provides a feeding device of a coating machine, which comprises a storage box 1 for storing raw materials, a steady fluid 2 is arranged below the material storage tank 1, the steady fluid 2 is of a tank structure which is obliquely arranged, the steady fluid 2 is used for uniformly pre-distributing liquid flowing into the steady fluid 2 from front to back, the material storage box 1 is communicated with the upper end of the steady fluid 2 through the discharge pipe 12, the lower end of the steady fluid 2 is provided with a feeding port 3, the feeding port 3 is arranged at the upper part of the roller wheel in the installation process of the feeding mechanism, an opening 4 is arranged on the side wall of the flow stabilizer 2 facing upwards, an L-shaped flow stabilizer bracket 5 placed from the opening 4 is arranged in the flow stabilizer 2, the steady flow support 5 comprises a flow baffle 6 attached to the lower side wall of the steady fluid 2 and a flow dividing frame 7 vertical to the flow baffle 6; the steady flow bracket 5 can be conveniently put in and taken out through the opening 4 on the steady fluid 2; through the design of the flow baffle 6, the liquid entering the stable fluid 2 can be firstly blocked at the position of the upper end surface of the flow baffle 6, only when the liquid is completely filled in the front-back direction of the flow baffle 6, the liquid can be synchronously left from the front-back direction of the flow baffle 6 at the same time, and then the effect of further uniformly distributing the liquid is realized through the flow distribution effect of the flow distribution frame 7; the side surface of the storage box 1 is provided with a cylinder 8, the bottom of the storage box 1 is provided with a slidable movable plate 9, the movable plate 9 is provided with a through hole 10, a slidable piston 11 is arranged in the cylinder 8, one side of the piston 11 facing the storage box 1 is connected with a piston 11 rod, the other end of the piston 11 rod penetrates through the side wall of the storage box 1 and is connected with the movable plate 9, and the piston 11 rod can push the movable plate 9 to move in the storage box 1, so that the storage box 1 is communicated with a discharge pipe 12 and is blocked; when the movable plate 9 is designed, the bottom surface of the material storage box 1 is in plane sealing, and the liquid outlet action can be realized only after the through hole 10 on the movable plate 9 is communicated with the discharge pipe 12.
In order to better realize the movement of the movable plate 9 in the material storage box 1, a spring 13 is connected between one end of the piston 11, which is far away from the material storage box 1, and the bottom wall of the cylinder 8, a push rod 14 is arranged at one end of the piston 11, which is far away from the material storage box 1, and the other end of the push rod 14 penetrates through the bottom wall of the cylinder 8 and is arranged outside the cylinder 8; the cam 15 is arranged on the outer side of the cylinder 8, the cam 15 can contact the push rod 14 when pushing the push rod 14 to move, and when the push rod 14 moves to the rightmost side of the displacement, the return stroke of the push rod 14 is not contacted with the cam 15; the pushing stroke of the cam 15 can push the push rod 14 to drive the movable plate 9 to move rightwards in the material storage box 1, after the through hole 10 in the movable plate 9 is communicated with the discharge pipe 12, the cam 15 can continue to rotate at the moment and is separated from the end of the push rod 14, at the moment, the spring 13 is connected between the piston 11 and the bottom wall of the cylinder 8, the air hole 16 is formed in the cylinder 8, the air hole 16 is a small-diameter hole, when the piston 11 moves leftwards under the action of the spring 13, the piston can move slowly under the action of air pressure, a time delay effect is achieved, and the liquid outflow quantity is guaranteed.
In order to realize the easy to assemble of stationary flow support 5, the lateral wall that 4 portions of opening of stationary flow body 2 do be on be equipped with baffle 17, reposition of redundant personnel frame 7 and the laminating of baffle 17 on the stationary flow support 5 are placed, opening 4 position of stationary flow body 2 be equipped with apron 18, the lateral wall at reposition of redundant personnel frame 7 and stationary flow body 2 opening 4 position on be equipped with stopper 19, apron 18 place and realize the cover to stationary flow body 2 opening 4 on stopper 19, apron 18 on be equipped with handle 20.
In order to better realize the liquid diversion effect, the end surface of the flow baffle 6 is provided with a plurality of diversion trenches 21 which are distributed at intervals along the front and the back of the flow baffle 6, and due to the liquid (especially the glue solution/coating solution has larger viscosity, when the liquid is uniformly distributed on the front and the back of the flow baffle 6, the liquid can be left from one point due to the existence of the surface tension of the liquid), the situation can be avoided to a certain extent through the design of the diversion trenches 21.
Because the viscosity of the glue solution/coating solution is relatively high, in order to avoid the solidification of the glue solution/coating solution, a stirring shaft 22 is arranged in the storage box 1, so that the real-time stirring can be carried out, and the fluidity is ensured.
In order to facilitate the connection and use of the feeding device and the coating machine, the side wall of the storage box 1 is provided with a mounting bracket 23, the mounting bracket 23 is provided with a bolt hole, and the feeding device can be fixed on the frame of the coating machine through the bolt.
According to the invention, the electromagnetic valve 24 is arranged on the discharge pipe 12, the electromagnetic valve 24 is used as a trigger condition through the rotation of the roller on the coating machine, when the roller starts to rotate, the electromagnetic valve 24 is opened, so that the discharge operation can be realized, the inclination angle of the constant current stabilizer 2 is 20-40 degrees, the flow of glue solution/coating solution can be ensured, and meanwhile, excessive flow velocity cannot exist.
When the invention is used specifically, a feeding device is fixed on a rack of a coating machine through a bracket 23, a rotating shaft of a cam 15 is connected with the rotating shaft of a roller through a transmission mechanism, the rotation of the roller can drive the cam to rotate through the transmission mechanism, a feeding port 3 at the lower end of a stable fluid 2 is arranged at the upper part of the roller, after the coating machine is started, an electromagnetic valve 24 and the cam 15 can be started simultaneously, the cam 15 can push a movable plate 9 to move, the communication between a storage box 1 and the stable fluid 2 is realized, the liquid discharging operation is realized, meanwhile, as the time of each movement of the movable plate 9 is fixed, the difference of liquid quantity can be realized only by changing the moving times of the movable plate 9 pushed by the cam 15, the effects of high rotating speed and high liquid discharging quantity of the roller are realized, and simultaneously, through the design of the stable flow bracket 5 in the stable fluid 2, the liquid can be uniformly left in a waterfall shape, the coating uniform distribution is realized, and the liquid waste is avoided.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. Coating machine loading attachment, its characterized in that includes storage case (1), the below of storage case (1) be equipped with steady fluid (2), steady fluid (2) be the box structure that the slope was placed, storage case (1) communicate through discharging pipe (12) and the upper end of steady fluid (2), the lower extreme of steady fluid (2) is equipped with material loading mouth (3), the lateral wall of orientation top of steady fluid (2) seted up opening (4), steady fluid (2) inside be equipped with from L shape steady flow support (5) that opening (4) position was put into, steady flow support (5) including with steady fluid (2) lower lateral wall laminating keep off flow board (6) and with fender flow board (6) vertically reposition of redundant personnel frame (7), the side of storage case (1) be equipped with cylinder (8), storage case (1) bottom be equipped with slidable fly leaf (9), fly leaf (9) on seted up through-hole (10), cylinder (8) in be equipped with slidable piston (11), piston (11) are connected with piston (11) pole towards one side of storage case (1), the lateral wall that the other end of piston (11) pole runs through storage case (1) is connected with fly leaf (9), piston (11) pole can promote fly leaf (9) and remove in storage case (1), and then realize the intercommunication and the shutoff of storage case (1) and discharging pipe (12).
2. The feeding device of the coating machine according to claim 1, wherein a spring (13) is connected between one end of the piston (11) far away from the storage box (1) and the bottom wall of the cylinder (8), a push rod (14) is arranged at one end of the piston (11) far away from the storage box (1), and the other end of the push rod (14) penetrates through the bottom wall of the cylinder (8) and is arranged outside the cylinder (8).
3. The feeding device of the coating machine according to claim 2, characterized in that a cam (15) is arranged on the outer side of the cylinder (8), the cam (15) can contact the push rod (14) when pushing the push rod (14) to move, and when the push rod (14) moves to the rightmost side of the displacement, the return stroke of the push rod (14) does not contact the cam (15).
4. The feeding device of the coating machine according to claim 2, wherein the side wall of the cylinder (8) close to the bottom wall of the cylinder (8) is provided with a plurality of air holes (16) which are uniformly distributed on the circumference.
5. The feeding device of the coating machine according to claim 1, wherein a baffle (17) is arranged on a side wall of the opening (4) of the steady flow body (2), a shunt frame (7) on the steady flow support (5) is attached to the baffle (17), a cover plate (18) is arranged at the opening (4) of the steady flow body (2), limit blocks (19) are arranged on side walls of the shunt frame (7) and the upper opening (4) of the steady flow body (2), the cover plate (18) is placed on the limit blocks (19) to cover the upper opening (4) of the steady flow body (2), and a handle (20) is arranged on the cover plate (18).
6. The feeding device of the coating machine according to claim 1, wherein the end surface of the flow baffle (6) is provided with a plurality of guide grooves (21) which are distributed along the flow baffle (6) at intervals.
7. The loading device of the coating machine according to claim 1, wherein the storage box (1) is provided with a transversely arranged stirring shaft (22).
8. A coater feeding device according to any one of claims 1-7, wherein a mounting bracket (23) is arranged on a side wall of the storage box (1), and a bolt hole is arranged on the mounting bracket (23).
9. A feeding device of a coating machine according to claim 6, characterized in that the flow dividing frame (7) is provided with a plurality of support rods which are distributed at intervals from front to back to form a grid structure.
10. The coater feeding device according to claim 3, wherein the discharge pipe (12) is provided with an electromagnetic valve (24), and the stable fluid (2) is inclined at an angle of 20-40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696277.7A CN114887844A (en) | 2022-06-20 | 2022-06-20 | Feeding device of coating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696277.7A CN114887844A (en) | 2022-06-20 | 2022-06-20 | Feeding device of coating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114887844A true CN114887844A (en) | 2022-08-12 |
Family
ID=82727116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210696277.7A Pending CN114887844A (en) | 2022-06-20 | 2022-06-20 | Feeding device of coating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114887844A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200356828Y1 (en) * | 2004-04-16 | 2004-07-19 | 용인송담대학 산학협력단 | Apparatus for providing packing textile moved by a conveyor with predetermined quantity of adhesive continuously |
| CN201421261Y (en) * | 2009-04-14 | 2010-03-10 | 柳州钢铁股份有限公司 | Sintering iron material high precision continuous steady flow dispenser |
| CN102500689A (en) * | 2011-11-07 | 2012-06-20 | 江阴市九天科技有限公司 | Device for coating oil on steel band in rolling manner |
| CN215792021U (en) * | 2021-08-26 | 2022-02-11 | 哈尔滨跃金科技发展有限公司 | Uniform feeding device of straw briquetting machine |
| WO2022104494A1 (en) * | 2020-11-17 | 2022-05-27 | 唐山哈船科技有限公司 | Transplanting assisting device and method for agricultural planting |
-
2022
- 2022-06-20 CN CN202210696277.7A patent/CN114887844A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200356828Y1 (en) * | 2004-04-16 | 2004-07-19 | 용인송담대학 산학협력단 | Apparatus for providing packing textile moved by a conveyor with predetermined quantity of adhesive continuously |
| CN201421261Y (en) * | 2009-04-14 | 2010-03-10 | 柳州钢铁股份有限公司 | Sintering iron material high precision continuous steady flow dispenser |
| CN102500689A (en) * | 2011-11-07 | 2012-06-20 | 江阴市九天科技有限公司 | Device for coating oil on steel band in rolling manner |
| WO2022104494A1 (en) * | 2020-11-17 | 2022-05-27 | 唐山哈船科技有限公司 | Transplanting assisting device and method for agricultural planting |
| CN215792021U (en) * | 2021-08-26 | 2022-02-11 | 哈尔滨跃金科技发展有限公司 | Uniform feeding device of straw briquetting machine |
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