CN212404623U - Multipurpose cooling device for dryer of paper mill - Google Patents
Multipurpose cooling device for dryer of paper mill Download PDFInfo
- Publication number
- CN212404623U CN212404623U CN202020377766.2U CN202020377766U CN212404623U CN 212404623 U CN212404623 U CN 212404623U CN 202020377766 U CN202020377766 U CN 202020377766U CN 212404623 U CN212404623 U CN 212404623U
- Authority
- CN
- China
- Prior art keywords
- cooling
- roller
- adjusting
- paper
- dryer
- 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.)
- Active
Links
Images
Landscapes
- Paper (AREA)
Abstract
The utility model discloses a multipurpose cooling device for a dryer of a paper mill, which comprises a bracket, wherein the upper end of the bracket is fixedly connected with a conveying platform through a bolt, the inner side of the bracket is provided with a heat radiation water tank, a water outlet at one end of the heat radiation water tank is connected with a circulating pump, the upper side of the conveying platform is fixedly connected with a cooling box through a bolt, the inner side of the cooling box is provided with an adjusting cooling plate, the inner side of the adjusting cooling plate rotates through a bearing to be provided with a cooling roller, the inner side of the cooling roller is provided with a cooling cavity, and two ends of the cooling roller are; the utility model discloses a chill roll, circulating pump, radiator tank and cooling chamber that set up are using cooling device to let in the cooling chamber of chill roll through the coolant liquid of circulating pump in the radiator tank, and the paper is followed under the chill roll through and the chill roll pastes on the paper, absorbs the heat on the paper through coolant liquid and chill roll in the cooling chamber and cools off, appears the paper and is blown or blow bad phenomenon during the prevention cooling.
Description
Technical Field
The utility model relates to a papermaking technical field especially relates to a multipurpose cooling device for paper mill drying apparatus.
Background
Paper making is an important invention for ancient Chinese workers. The method is divided into a mechanism mode and a manual mode. The mechanism is continuously carried out on a paper machine, pulp suitable for paper quality is diluted to certain concentration by water, and is primarily dewatered at a wire part of the paper machine to form a wet paper sheet, and then the wet paper sheet is pressed for dewatering and then dried to form paper. And a cooling device is required to accelerate cooling during drying.
The conventional multipurpose cooling device for the dryer of the paper mill is usually air-cooled during use, so that the phenomenon that paper is blown up or broken during use occurs, and therefore, a need for designing a multipurpose cooling device for the dryer of the paper mill is needed to solve the above problems.
Disclosure of Invention
The utility model aims at solving the problem that the prior multipurpose cooling device for the dryer of the paper mill usually adopts air cooling when in use, so that the phenomenon defect that paper is blown up or blown bad can appear when in use, and providing the multipurpose cooling device for the dryer of the paper mill.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a multipurpose cooling device for a dryer of a paper mill comprises a bracket, wherein the upper end of the bracket is fixedly connected with a conveying platform through bolts, a heat dissipation water tank is arranged at the inner side of the bracket, a water outlet at one end of the heat dissipation water tank is connected with a circulating pump, the upper side of the conveying table is fixedly connected with a cooling box through bolts, the inner side of the cooling box is provided with an adjusting cooling plate, the inner side of the adjusting cooling plate is rotatably provided with a cooling roller through a bearing, the inner side of the cooling roller is provided with a cooling cavity, two ends of the cooling roller are rotatably connected with a liquid guide pipe through a sealing bearing, and the liquid guide pipe is communicated with the cooling cavity, one end of the liquid guide pipe is connected with a connecting pipe, one end of the cooling roller is communicated with the water outlet of the circulating pump through the liquid guide pipe and the connecting pipe, the other end of the cooling roller is communicated with a water inlet of the heat dissipation water tank through a liquid guide pipe and a connecting pipe.
The key concept of the technical scheme is as follows: absorb the heat on the paper through the chill roll, take away the heat on the chill roll through the coolant liquid in the cooling chamber to the phenomenon that the paper is blown up or blows bad appears when preventing original forced air cooling from appearing
Furthermore, the both ends of cooler bin have been seted up and have been adjusted the spout, adjust cooling plate slidable mounting in adjusting the spout, the upper surface four corners department of cooler bin has closed adjusting screw through the screw thread soon, adjusting screw's lower extreme passes the cooler bin and is connected with adjusting the cooling plate, adjusting screw's upper end is through bolt fixedly connected with adjusting hand wheel.
Further, one end of the conveying table is fixedly connected with a suction frame through a bolt, the inner side of the suction frame is rotatably connected with a limiting roller through a bearing, and a suction fan is arranged at the top of the suction frame.
Furthermore, the top of the inner side of the sucking frame is provided with an inclined surface, and the sucking fan is communicated with the inclined surface.
Furthermore, the cooling cavities in the cooling roller are communicated through a connecting pipe, and the heat dissipation water tank and the circulating pump are respectively connected to two ends of the communicated cooling cavities.
Further, the conveying table is provided with a conveying roller and a conveying belt on the inner side, the conveying belt is sleeved outside the conveying roller, the motor is arranged on the inner side of the support, one end of the conveying roller and one end of the cooling roller are both fixedly connected with a belt pulley through bolts, and a belt is arranged on the outer side of the belt pulley.
Further, the motor, the conveying roller and the cooling roller are in transmission connection through a belt pulley and a belt.
The utility model has the advantages that:
1. through chill roll, circulating pump, radiator tank and the cooling chamber that sets up, use cooling device to let in the cooling chamber of chill roll through the coolant liquid of circulating pump in the radiator tank, the paper is followed under the chill roll and the chill roll pastes on the paper, absorbs the heat on the paper through coolant liquid and chill roll in the cooling chamber and cools off, appears the paper when preventing to cool off and is blown or blow bad phenomenon.
2. Through the regulation cooling plate that sets up, regulation spout, adjusting screw and, rotate adjusting screw when using and pass through the screw thread drive and remove to make and adjust the cooling plate and slide in adjusting the spout, adjust the position of chill roll, make the chill roll can stabilize and press on treating refrigerated paper, thereby conveniently cool off.
3. Through the frame, spacing roller and the fan of having inhaled that absorb that set up, when the paper was seen off from the one end of carrying the platform, the negative pressure that produces through the operation of the fan of having inhaled was inhaled the paper from the surface of conveyer belt, prevented that the paper from adsorbing the surface of conveyer belt and was drawn into the phenomenon of carrying the platform inboard to the convenience is collected the paper.
Drawings
FIG. 1 is a schematic view of a multi-purpose cooling apparatus for a dryer of a paper mill according to the present invention;
FIG. 2 is a schematic view of a multi-purpose cooling device for a dryer of a paper mill according to the present invention;
FIG. 3 is a schematic view of a multi-purpose cooling device for a dryer of a paper mill according to the present invention;
fig. 4 is a schematic structural diagram of a multipurpose cooling device for a dryer of a paper mill according to the present invention.
In the figure: the device comprises a support 1, a conveying table 2, a cooling roller 3, a conveying belt 4, a conveying roller 5, a cooling box 6, an adjusting hand wheel 7, a suction frame 8, a limiting roller 9, a suction fan 10, a motor 11, a circulating pump 12, a heat dissipation water tank 13, a cooling cavity 14, a liquid guide pipe 15, a belt pulley 16, a belt 17, a connecting pipe 18, an adjusting cooling plate 19, an adjusting chute 20 and an adjusting screw rod 21.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 4, a multipurpose cooling device for a dryer of a paper mill comprises a support 1, the upper end of the support 1 is fixedly connected with a conveying platform 2 through bolts, the inner side of the support 1 is provided with a heat dissipation water tank 13, a water outlet at one end of the heat dissipation water tank 13 is connected with a circulating pump 12, the upper side of the conveying platform 2 is fixedly connected with a cooling tank 6 through bolts, the inner side of the cooling tank 6 is provided with an adjusting cooling plate 19, the inner side of the adjusting cooling plate 19 is provided with a cooling roller 3 through a bearing in a rotating manner, the inner side of the cooling roller 3 is provided with a cooling cavity 14, two ends of the cooling roller 3 are rotatably connected with a, and the liquid guide tube 15 is communicated with the cooling cavity 14, one end of the liquid guide tube 15 is connected with the connecting tube 18, one end of the cooling roller 3 is communicated with the water outlet of the circulating pump 12 through the liquid guide tube 15 and the connecting tube 18, and the other end of the cooling roller 3 is communicated with the water inlet of the radiating water tank 13 through the liquid guide tube 15 and the connecting tube 18.
As can be seen from the above description, the present invention has the following advantages: through the chill roll 3, circulating pump 12, radiator tank 13 and the cooling chamber 14 that set up, in using cooling device to let in the cooling chamber 14 of chill roll 3 through circulating pump 12 the coolant liquid in radiator tank 13, the paper passes through and the chill roll 3 pastes on the paper under the chill roll 3, absorbs the heat on the paper through chill roll 3 and the chill roll in the cooling chamber 14 and cools off, appears the paper and is blown up or blow bad phenomenon during the prevention cooling.
Furthermore, the two ends of the cooling box 6 are provided with adjusting chutes 20, the adjusting cooling plate 19 is slidably mounted in the adjusting chutes 20, the four corners of the upper surface of the cooling box 6 are screwed with adjusting screws 21 through threads, the lower ends of the adjusting screws 21 penetrate through the cooling box 6 to be connected with the adjusting cooling plate 19, the adjusting cooling plate 19 is driven to slide when the adjusting screws 21 move, the upper ends of the adjusting screws 21 are fixedly connected with adjusting hand wheels 7 through bolts, and the adjusting hand wheels 7 are driven to rotate the adjusting screws 21.
Further, carry 2 one end of platform through bolt fixedly connected with to suck up frame 8, suck up the inboard of frame 8 and be connected with spacing roller 9 through the bearing rotation, suck up 8 tops of frame and be provided with and suck up fan 10, when carrying out from carrying 2 one end of platform after the paper cooling, produce the negative pressure through the operation of sucking up fan 10 and suck up the paper from conveyer belt 4, prevent that the paper from adsorbing and being drawn into the bottom of conveyer belt 4 on conveyer belt 4.
Furthermore, the top of the inner side of the suction frame 8 is provided with an inclined surface, and the suction fan 10 is communicated with the inclined surface, so that the paper head at the end part of the conveying platform 2 can be better sucked when the suction fan 10 operates to generate negative pressure.
Furthermore, the cooling cavities 14 in the cooling roller 3 are communicated through the connecting pipe 18, and the heat dissipation water tank 13 and the circulating pump 12 are respectively connected to two ends of the communicated cooling cavities 14, so that the cooling cavities 14 in the cooling roller 3 are communicated in an S shape, and the cooling liquid can conveniently absorb heat on the cooling roller 3.
Further, the conveying table 2 is provided with conveying rollers 5 and a conveying belt 4 on the inner side, the conveying belt 4 is sleeved outside the conveying rollers 5, the motor 11 is arranged on the inner side of the support 1, one end of the conveying rollers 5 and one end of the cooling roller 3 are both fixedly connected with a belt pulley 16 through bolts, a belt 17 is arranged on the outer side of the belt pulley 16, the conveying belt 4 and the cooling roller 3 are driven to rotate through the motor 11, and therefore paper is conveyed and cooled.
Further, the motor 11, the conveying roller 5 and the cooling roller 3 are in transmission connection through a belt pulley 16 and a belt 17, and paper is conveyed conveniently.
Adopt foretell regulation cooling plate 19, regulation spout 20, adjusting screw 21 and 22, rotate adjusting screw 21 when using and drive 22 through the screw and remove to make and adjust cooling plate 19 and slide in adjusting spout 20, adjust the position of chill roll 3, make chill roll 3 can stably press on waiting the refrigerated paper, thereby conveniently cool off.
By adopting the sucking-up frame 8, the limiting roller 9 and the sucking-up fan 10, when the paper is sent out from one end of the conveying table 2, the paper is sucked up from the surface of the conveying belt 4 by the negative pressure generated by the operation of the sucking-up fan 10, so that the phenomenon that the paper is sucked on the surface of the conveying belt 4 and is drawn into the inner side of the conveying table 2 is prevented, and the paper is conveniently collected.
In the following, some preferred embodiments or application examples are listed to help those skilled in the art to better understand the technical content of the present invention and the technical contribution of the present invention to the prior art:
example 1
A multipurpose cooling device for a dryer of a paper mill comprises a support 1, the upper end of the support 1 is fixedly connected with a conveying platform 2 through bolts, the inner side of the support 1 is provided with a heat radiation water tank 13, a water outlet at one end of the heat radiation water tank 13 is connected with a circulating pump 12, the upper side of the conveying platform 2 is fixedly connected with a cooling tank 6 through bolts, the inner side of the cooling tank 6 is provided with an adjusting cooling plate 19, the inner side of the adjusting cooling plate 19 is provided with a cooling roller 3 through a bearing in a rotating manner, the inner side of the cooling roller 3 is provided with a cooling cavity 14, heat on paper is absorbed through the cooling roller 3, the heat on the cooling roller 3 is taken away through cooling liquid in the cooling cavity 14, two ends of the cooling roller 3 are rotatably connected with a liquid guide pipe 15 through a sealing bearing, the liquid guide pipe 15 is communicated with the cooling cavity 14, and the, one end of the liquid guide tube 15 is connected with a connecting tube 18, one end of the cooling roller 3 is communicated with a water outlet of the circulating pump 12 through the liquid guide tube 15 and the connecting tube 18, the other end of the cooling roller 3 is communicated with a water inlet of the heat dissipation water tank 13 through the liquid guide tube 15 and the connecting tube 18, so that cooling liquid can conveniently enter the heat dissipation water tank 13 and then flows to the cooling cavity 14 through the circulating pump 12, and therefore the cooling liquid can be recycled.
The cooling device comprises a cooling box 6, an adjusting sliding groove 20, an adjusting cooling plate 19, an adjusting screw 21, an adjusting hand wheel 7, an adjusting screw 21, a bolt and a bolt, wherein the adjusting sliding groove 20 is formed in two ends of the cooling box 6, the adjusting cooling plate 19 is slidably mounted in the adjusting sliding groove 20, the adjusting screw 21 is screwed at the four corners of the upper surface of the cooling box 6 through threads, the lower end of the adjusting screw 21 penetrates through the cooling box 6 to be connected with the adjusting cooling plate 19, the adjusting cooling plate 19 is driven to slide when the adjusting screw 21 moves, the upper end of the adjusting screw 21; one end of the conveying table 2 is fixedly connected with a suction frame 8 through a bolt, the inner side of the suction frame 8 is rotatably connected with a limiting roller 9 through a bearing, a suction fan 10 is arranged at the top of the suction frame 8, and when the paper is conveyed out from one end of the conveying table 2 after being cooled, negative pressure is generated through the operation of the suction fan 10 to suck the paper from the conveying belt 4, so that the paper is prevented from being adsorbed on the conveying belt 4 and being rolled into the bottom of the conveying belt 4; the top of the inner side of the sucking frame 8 is provided with an inclined surface, and the sucking fan 10 is communicated with the inclined surface, so that the paper head at the end part of the conveying platform 2 can be better sucked when the sucking fan 10 runs to generate negative pressure; the cooling cavities 14 in the cooling roller 3 are communicated through a connecting pipe 18, and the heat dissipation water tank 13 and the circulating pump 12 are respectively connected to two ends of the communicated cooling cavities 14, so that the cooling cavities 14 in the cooling roller 3 are communicated in an S shape, and the cooling liquid can conveniently absorb heat on the cooling roller 3; a conveying roller 5 and a conveying belt 4 are arranged on the inner side of the conveying table 2, the conveying belt 4 is sleeved outside the conveying roller 5, a motor 11 is arranged on the inner side of the support 1, one end of the conveying roller 5 and one end of the cooling roller 3 are fixedly connected with a belt pulley 16 through bolts, a belt 17 is arranged on the outer side of the belt pulley 16, and the conveying belt 4 and the cooling roller 3 are driven to rotate through the motor 11, so that paper is conveyed and cooled; the motor 11 is in transmission connection with the conveying roller 5 and the cooling roller 3 through a belt pulley 16 and a belt 17, and paper is conveyed conveniently.
The working principle is as follows: when the cooling device is used, the adjusting hand wheel 7 is rotated as required to drive the adjusting screw rod 21 to rotate, the adjusting screw rod 21 is matched with threads to drive the adjusting cooling plate 19 to slide in the adjusting sliding groove 20, so that the cooling roller 3 is attached to the surface of paper, the paper is placed on the conveying belt 4 at one end of the conveying platform 2 and conveyed into the inner side of the cooling box 6 through the conveying belt 4, cooling liquid in the cooling water tank 13 is introduced into the cooling cavity 14 in the cooling roller 3 through the circulating pump 12, the cooling roller 3 absorbs heat on the paper, the heat on the cooling roller 3 is taken away through the cooling liquid in the cooling cavity 14, then the cooling liquid after heat absorption flows into the cooling water tank 13 to dissipate heat and store, the conveying belt 4 and the cooling roller 3 are driven to rotate through the motor 11 during cooling, so that the paper moves more stably, the cooled paper is discharged from the other end of the conveying platform 2, and the paper is sucked up through the suction frame 8 by the negative, prevent that the paper from adsorbing the bottom that is drawn into conveyer belt 4 on conveyer belt 4, and collect the paper with rotating the convenience through blockking of spacing roller 9, and this cooling device not only can be used to the papermaking cooling, also can be used to the cooling of other slice products.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The multipurpose cooling device for the dryer of the paper mill comprises a support (1), wherein the upper end of the support (1) is fixedly connected with a conveying table (2) through a bolt, and is characterized in that a heat dissipation water tank (13) is arranged on the inner side of the support (1), a circulating pump (12) is connected to a water outlet at one end of the heat dissipation water tank (13), a cooling box (6) is fixedly connected to the upper side of the conveying table (2) through a bolt, an adjusting cooling plate (19) is arranged on the inner side of the cooling box (6), a cooling roller (3) is rotated on the inner side of the adjusting cooling plate (19) through a bearing, a cooling cavity (14) is formed in the inner side of the cooling roller (3), liquid guide pipes (15) are rotatably connected to two ends of the cooling roller (3) through sealed bearings, the liquid guide pipes (15) are communicated with the cooling cavity (14), and one ends of the, one end of the cooling roller (3) is communicated with a water outlet of the circulating pump (12) through a liquid guide pipe (15) and a connecting pipe (18), and the other end of the cooling roller (3) is communicated with a water inlet of the radiating water tank (13) through the liquid guide pipe (15) and the connecting pipe (18).
2. The multipurpose cooling device for the dryer of the paper mill according to claim 1, wherein the two ends of the cooling box (6) are provided with adjusting sliding grooves (20), the adjusting cooling plate (19) is slidably mounted in the adjusting sliding grooves (20), four corners of the upper surface of the cooling box (6) are screwed with adjusting screws (21) through threads, the lower ends of the adjusting screws (21) penetrate through the cooling box (6) to be connected with the adjusting cooling plate (19), and the upper ends of the adjusting screws (21) are fixedly connected with adjusting hand wheels (7) through bolts.
3. A multipurpose cooling device for a dryer of a paper mill according to claim 1, characterized in that one end of the conveying table (2) is fixedly connected with a suction frame (8) through a bolt, the inner side of the suction frame (8) is rotatably connected with a limit roller (9) through a bearing, and a suction fan (10) is arranged on the top of the suction frame (8).
4. A multipurpose cooling device for a dryer of a paper mill according to claim 3, wherein the top of the inner side of the suction frame (8) is provided with an inclined surface, and the suction fan (10) is communicated with the inclined surface.
5. A multipurpose cooling device for a dryer of a paper mill according to claim 1, characterized in that the cooling chambers (14) inside the cooling roll (3) are communicated with each other through a connecting pipe (18), and the heat-dissipating water tank (13) and the circulating pump (12) are respectively connected to both ends of the communicated cooling chambers (14).
6. A multipurpose cooling device for a dryer of a paper mill according to claim 1, characterized in that the inner side of the conveying table (2) is provided with a conveying roller (5) and a conveying belt (4), the conveying belt (4) is sleeved outside the conveying roller (5), the inner side of the bracket (1) is provided with a motor (11), one end of the conveying roller (5) and one end of the cooling roller (3) are fixedly connected with a belt pulley (16) through bolts, and the outer side of the belt pulley (16) is provided with a belt (17).
7. A multipurpose cooling device for a dryer in a paper mill according to claim 6, characterized in that the motor (11) is drivingly connected to the feed roll (5) and the cooling roll (3) by means of a pulley (16) and a belt (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020377766.2U CN212404623U (en) | 2020-03-23 | 2020-03-23 | Multipurpose cooling device for dryer of paper mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020377766.2U CN212404623U (en) | 2020-03-23 | 2020-03-23 | Multipurpose cooling device for dryer of paper mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212404623U true CN212404623U (en) | 2021-01-26 |
Family
ID=74378513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020377766.2U Active CN212404623U (en) | 2020-03-23 | 2020-03-23 | Multipurpose cooling device for dryer of paper mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212404623U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104267A (en) * | 2021-04-14 | 2021-07-13 | 福建省卡尔顿食品有限公司 | Cooling system on bread production line and working method of cooling system |
-
2020
- 2020-03-23 CN CN202020377766.2U patent/CN212404623U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113104267A (en) * | 2021-04-14 | 2021-07-13 | 福建省卡尔顿食品有限公司 | Cooling system on bread production line and working method of cooling system |
| CN113104267B (en) * | 2021-04-14 | 2023-08-22 | 卡尔顿(集团)有限公司 | Cooling system on bread production line and working method of cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2023130777A1 (en) | Wire drawing production apparatus for wire coils | |
| CN212404623U (en) | Multipurpose cooling device for dryer of paper mill | |
| CN107378634A (en) | A kind of lathe cools down chip removing device | |
| CN210368449U (en) | Corrugated paper drying-machine with cooling function | |
| CN107378677A (en) | Suitable for the edging device and its operating method of metal identification label | |
| CN211942561U (en) | Printed matter cooling device | |
| CN218367100U (en) | Material collecting device of digital printing machine | |
| CN209306683U (en) | A kind of textile machines weaving materials guiding device | |
| CN214873528U (en) | Printing device convenient for ink changing and used for processing and packaging | |
| CN211193138U (en) | Cooling device for machining | |
| CN112975740B (en) | Cooling device for workpiece polishing | |
| CN212831811U (en) | Material receiving device of thermal transfer printing machine | |
| CN212332109U (en) | Thermoprint cuts all-in-one | |
| CN213141898U (en) | Automatic lamination production line for drying rubber film through water powder | |
| CN112570095A (en) | Device and method for treating solid waste | |
| CN217104446U (en) | Improved cloth inspecting machine with real-time cooling function | |
| CN111854289A (en) | Water cooling device for safety production of aluminum products | |
| CN210617222U (en) | Tabletting device's stoving structure | |
| CN218505491U (en) | Paper feeding device for printing machine | |
| CN214814221U (en) | Cooling device of stamping die | |
| CN218019680U (en) | Cloth cooling device of flat screen printing machine | |
| CN213831038U (en) | Paper guide device of digital printing machine | |
| CN213533014U (en) | Annular air cooling device for multilayer board | |
| CN219990321U (en) | Aluminum guide roller for material transmission | |
| CN219522704U (en) | Mixed rubber sheet cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |