CN210481541U - Sealing device for producing ultrathin copper foil - Google Patents
Sealing device for producing ultrathin copper foil Download PDFInfo
- Publication number
- CN210481541U CN210481541U CN201920983965.5U CN201920983965U CN210481541U CN 210481541 U CN210481541 U CN 210481541U CN 201920983965 U CN201920983965 U CN 201920983965U CN 210481541 U CN210481541 U CN 210481541U
- Authority
- CN
- China
- Prior art keywords
- annular
- sealing
- groove
- cathode
- copper foil
- 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
- Electroplating Methods And Accessories (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The utility model discloses a sealing device for producing an ultrathin copper foil; belongs to the technical field of copper foil production; the technical key points of the device comprise a cathode roller, an anode groove matched with the cathode roller and annular end plates respectively arranged at two ends of the roller surface of the cathode roller; the side surfaces of the two annular end plates are both level to the roll surface of the cathode roll, one end of the side surface of each annular end plate, which is close to the cathode roll, is respectively provided with an annular notch, and the annular notches are matched with the roll surface of the corresponding cathode roll to form an annular sealing groove; the upper end surface of the anode groove at the side edge of each annular end plate is provided with a sealing ring guide mechanism, an annular sealing ring is wound between the outer end surface of the contact part of each annular end plate and the cathode roller in the anode groove and the sealing ring guide mechanism, and an annular sealing lug which is matched with the annular sealing groove is arranged on the sealing surface of the annular sealing ring; the utility model aims to provide a sealing device for producing ultrathin copper foil, which has reasonable structure and good use effect; the method is used for producing the ultrathin copper foil.
Description
Technical Field
The utility model relates to a sealing device, more specifically say, especially relate to a sealing device for production ultra-thin copper foil.
Background
The production process of the electrolytic copper foil is to generate the copper foil on a cathode through large-current electrolysis, then to strip and roll the copper foil into a copper foil roll. Most of the current methods for producing cathode roll edge sealing for copper foil include fixed sealing, open sealing, tape sealing, structures with auxiliary cathodes, etc.
The cathode roller adopting the sealing mode has the following defects in the process of producing the copper foil: the fixed seal and the adhesive tape seal are easy to seal and are not tight to cause the raw copper root to tear edges; the open type sealing is easy to abrade raw copper roots and copper particles. The defects can cause the peeling force direction of the copper foil to deviate from the adhesion direction of the copper root, so that the edge tearing risk is increased, the larger the deviation angle is, and particularly, the influence caused by the problems is more serious when the ultrathin copper foil is produced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough of above-mentioned prior art, provide a production ultra-thin copper foil is with sealing device rational in infrastructure, excellent in use effect.
The technical scheme of the utility model is realized like this: a sealing device for producing ultrathin copper foil comprises a cathode roller, an anode groove matched with the cathode roller and annular end plates respectively arranged at two ends of the roller surface of the cathode roller; the side surfaces of the two annular end plates are both level to the roll surface of the cathode roll, one end of the side surface of each annular end plate, which is close to the cathode roll, is respectively provided with an annular notch, the annular notches are matched with the corresponding roll surface of the cathode roll to form an annular sealing groove, and the depth of the annular sealing groove is 1.2-1.8 mm;
the upper end face of the anode groove at the side edge of each annular end plate is provided with a sealing ring guide mechanism, an annular sealing ring is wound between the outer end face of the contact part of each annular end plate and the cathode roller in the anode groove and the sealing ring guide mechanism, and an annular sealing lug matched with the annular sealing groove is arranged on the sealing surface of the annular sealing ring.
In the sealing device for producing the ultrathin copper foil, the width of the annular sealing groove is 2-4 mm.
In the sealing device for producing the ultrathin copper foil, the annular sealing ring is 8-12mm wide and 3-7mm thick.
In the sealing device for producing the ultrathin copper foil, the sealing ring guide mechanism consists of two groups of guide assemblies which are matched with each other; two groups of guide assemblies which are matched with each other are respectively arranged on the upper end surface of the anode groove opposite to the annular sealing groove;
the guide assembly consists of an inner guide wheel which is arranged on the upper end surface of the anode groove and has a central axis parallel to the central axis of the cathode roller, and an outer guide wheel which is arranged on the upper end surface of the anode groove on one side of the inner guide wheel away from the annular sealing groove and has a central axis perpendicular to the central axis of the cathode roller; a first trapezoidal groove matched with the back surface of the annular sealing ring is formed in the curved surface of the inner guide wheel and the curved surface of the outer guide wheel along the circumferential direction;
and each annular sealing ring is wound on the lower half part of the outer end face of the contact part of the corresponding annular end plate and the cathode roller respectively, and is led out by the inner guide wheels in the two groups of mutually matched guide assemblies and rotates to the outer guide wheel to form winding.
In the sealing device for producing the ultrathin copper foil, the width of each first trapezoidal groove is larger than the sealing surface of the annular sealing ring, the inner width of each first trapezoidal groove is 10-14mm, and the outer width of each first trapezoidal groove is 11-15 mm.
In the sealing device for producing the ultrathin copper foil, a tensioning mechanism is arranged on the upper end surface of the anode groove between two groups of guide assemblies which are matched with each other, and the tensioning mechanism consists of an installation seat arranged on the upper end surface of the anode groove, two fixed guide wheels which are arranged on the upper end surface of the installation seat at intervals along the extension direction of the annular sealing ring and the central axis of which is vertical to the central axis of the cathode roller, an adjusting assembly arranged on the upper end surface of the installation seat between the two fixed guide wheels and an adjusting guide wheel which is arranged on the adjusting assembly and the central axis of which is vertical to the central axis of the cathode roller;
a clamping groove matched with the sealing surface of the annular sealing ring and the annular sealing lug is formed in the curved surface of each fixed guide wheel along the circumferential direction; a second trapezoidal groove with the same shape and size as the first trapezoidal groove is arranged on the curved surface of the adjusting guide wheel along the circumferential direction;
each annular sealing ring is respectively wound on the lower half part of the outer end face of the contact part of the corresponding annular end plate and the cathode roller and is guided to form a winding through two groups of guide assemblies which are matched with each other to form a winding structure.
In the sealing device for producing the ultrathin copper foil, the adjusting assembly consists of two mounting blocks which are arranged on the upper end surface of the mounting seat between the two fixed guide wheels at intervals, a screw rod which is movably connected to the two mounting blocks through a bearing and has a central axis parallel to that of the cathode roller, and a moving block which is movably connected with the adjusting guide wheel through a rotating shaft and is in threaded connection with the screw rod; the bottom of the moving block is provided with a limiting lug, and a guide sliding groove matched with the limiting lug is arranged on the mounting seat corresponding to the limiting lug along the central axis of the lead screw.
The utility model adopts the above structure after, cooperate with the annular seal recess through setting up the annular seal lug on the sealing face of ring type seal, can make the sealed negative pole roller limit of ring type seal deposit copper, eliminate negative pole roller tip deposit copper effectively and form copper root, copper grain defect, avoid the skew copper root adhesive force direction of copper foil peeling force direction to cause the risk of tearing the limit to make things convenient for the smooth production of ultra-thin copper foil. Meanwhile, the position of the adjusting guide wheel can be adjusted as required in the production process of the ultrathin copper foil through the arranged tensioning mechanism, so that the tensioning force of the annular sealing ring is adjusted, the sealing surface of the annular sealing ring is tightly attached to the lower half part of the outer end face of the contact part of the cathode roller and the annular end plate, and the edge of the cathode roller is sealed.
Drawings
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged schematic view at a in fig. 1.
Fig. 3 is a schematic structural diagram of the ring-shaped sealing ring of the present invention.
Fig. 4 is a schematic view of the contact structure between the ring seal of the present invention and the cathode roll and the ring end plate.
Fig. 5 is a schematic structural diagram of the guide assembly of the present invention.
Fig. 6 is a schematic structural diagram of the tensioning mechanism of the present invention.
Fig. 7 is a schematic structural view of the inner guide wheel of the present invention.
Fig. 8 is a schematic structural view of the fixed guide wheel of the present invention.
In the figure: 1. a cathode roll; 2. an anode tank; 3. an annular end plate; 4. an annular gap; 5. a seal ring guide mechanism; 5a, a guide component; 5b, an inner guide wheel; 5c, an outer guide wheel; 5e, a first trapezoidal groove; 6. an annular seal ring; 6a, an annular sealing lug; 7. a tensioning mechanism; 7a, a mounting seat; 7b, fixing a guide wheel; 7c, an adjusting component; 7d, adjusting the guide wheel; 7e, a clamping groove; 7f, mounting blocks; 7g of lead screw; 7h, moving block.
Detailed Description
Referring to fig. 1 to 8, the sealing device for producing ultra-thin copper foil of the present invention comprises a cathode roll 1, an anode groove 2 matched with the cathode roll 1, and ring-shaped end plates 3 respectively disposed at two ends of the roll surface of the cathode roll 1; the side surfaces of the two annular end plates 3 are all level with the roll surface of the cathode roll 1, one end of each annular end plate 3, close to the cathode roll 1, is provided with an annular notch 4, the annular notches 4 are matched with the roll surface of the corresponding cathode roll 1 to form an annular sealing groove, the depth of the annular sealing groove is 1.2-1.8mm, and the width of the annular sealing groove is 2-4 mm.
The upper end surface of the anode groove 2 at the side edge of each annular end plate 3 is provided with a seal ring guide mechanism 5, an annular seal ring 6 is wound between the outer end surface of the contact part of each annular end plate 3 positioned in the anode groove 2 and the cathode roller 1 and the seal ring guide mechanism 5, and an annular seal lug 6a matched with an annular seal groove is arranged on the seal surface of the annular seal ring 6; the annular sealing ring 6 is 8-12mm wide and 3-7mm thick. Through setting up annular seal lug 6a on the sealed face of annular seal ring 6 and cooperating with the annular seal recess, can make the roller limit of the sealed cathode roll 1 of annular seal ring 6 deposit copper, eliminate the deposit copper of cathode roll 1 tip effectively and form copper root, copper grain defect, avoid the skew copper root adhesive force direction of copper foil peeling force direction to cause the risk of tearing the limit to make things convenient for the smooth production of ultra-thin copper foil.
Specifically, the sealing ring guide mechanism 5 is composed of two groups of guide components 5a which are matched with each other; two groups of guide assemblies 5a which are matched with each other are respectively arranged on the upper end surface of the anode groove 2 opposite to the annular sealing groove;
the guide assembly 5a consists of an inner guide wheel 5b which is arranged on the upper end surface of the anode groove 2 and has a central axis parallel to the central axis of the cathode roller 1, and an outer guide wheel 5c which is arranged on the upper end surface of the anode groove 2 on one side of the inner guide wheel 5b away from the annular sealing groove and has a central axis perpendicular to the central axis of the cathode roller 1; a first trapezoidal groove 5e matched with the back surface of the annular sealing ring 6 is formed in the circumferential direction of the curved surfaces of the inner guide wheel 5b and the outer guide wheel 5 c; preferably, the width of each first trapezoidal groove 5e is larger than the sealing surface of the annular sealing ring 6, the inner width of each first trapezoidal groove 5e is 10-14mm, the outer width of each first trapezoidal groove 5e is 11-15mm, and the arranged first trapezoidal grooves 5e can facilitate the annular sealing ring 6 to be wound on each inner guide wheel 5b and each outer guide wheel 5 c.
Each annular sealing ring 6 is respectively wound on the lower half part of the outer end face of the contact part of the corresponding annular end plate 3 and the cathode roller 1, and is led out by the inner guide wheels 5b in the two groups of guide assemblies 5a which are matched with each other and rotates to the outer guide wheels 5c to form a circle.
Preferably, a tensioning mechanism 7 is arranged on the upper end surface of the anode groove 2 between the two sets of guide assemblies 5a which are matched with each other, and the tensioning mechanism 7 is composed of a mounting seat 7a arranged on the upper end surface of the anode groove 2, two fixed guide wheels 7b which are arranged on the upper end surface of the mounting seat 7a at intervals along the extension direction of the annular sealing ring 6 and have central axes vertical to the central axis of the cathode roller 1, an adjusting assembly 7c arranged on the upper end surface of the mounting seat 7a between the two fixed guide wheels 7b, and an adjusting guide wheel 7d which is arranged on the adjusting assembly 7c and has central axes vertical to the central axis of the cathode roller 1; through the tensioning mechanism 7, the position of the adjusting guide wheel 7d can be adjusted as required in the production process of the ultrathin copper foil, so that the tensioning force of the annular sealing ring 6 is adjusted, and the sealing surface of the annular sealing ring 6 is tightly attached to the lower half part of the joint of the cathode roller 1 and the annular end plate 3.
Preferably, the adjusting assembly 7c is composed of two mounting blocks 7f arranged on the upper end surface of the mounting base 7a between the two fixed guide wheels 7b at intervals, a screw rod 7g movably connected to the two mounting blocks 7f through a bearing and having a central axis parallel to that of the cathode roller 1, and a moving block 7h movably connected to the adjusting guide wheel 7d through a rotating shaft and in threaded connection with the screw rod 7 g; the bottom of the moving block 7h is provided with a limiting convex block, a guide sliding groove matched with the limiting convex block is formed in the mounting seat 7a corresponding to the limiting convex block along the central axis of the lead screw 7g, and the moving block 7h can be driven to move along the central axis of the lead screw 7g by rotating the lead screw 7g, so that the position of the adjusting guide wheel 7d is adjusted, and the tensile force of the annular sealing ring 6 is adjusted.
A clamping groove 7e matched with the sealing surface of the annular sealing ring 6 and the annular sealing bump 6a is formed in the curved surface of each fixed guide wheel 7b along the circumferential direction; a second trapezoidal groove with the same shape and size as the first trapezoidal groove 5e is arranged on the curved surface of the adjusting guide wheel 7d along the circumferential direction, so that the annular sealing ring 6 can be conveniently wound.
Each annular sealing ring 6 is respectively wound on the lower half part of the outer end face of the contact part of the corresponding annular end plate 3 and the cathode roller 1, and then is guided to the corresponding tensioning mechanism 7 through two groups of mutually matched guide assemblies 5a to form a ring.
When in use, the annular sealing rings 6 are respectively wound on the lower half parts of the outer end faces of the contact parts of the corresponding annular end plates 3 and the cathode roller 1, are led out by the inner guide wheels 5b in the two groups of guide assemblies 5a which are matched with each other and rotate to the outer guide wheels 5c, are guided to the fixed guide wheels 7b in the tensioning mechanism 7 by the outer guide wheels 5c, and are finally guided to the adjusting guide wheels 7d by the fixed guide wheels 7b to form a winding; in the process of winding the annular sealing rings 6, the sealing surface of each annular sealing ring 6 is tightly attached to the lower half part of the outer end surface of the contact part of the corresponding annular end plate 3 and the cathode roller 1, and the annular sealing lug 6a correspondingly falls into the annular sealing groove to seal the roller edge of the cathode roller 1.
The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.
Claims (7)
1. A sealing device for producing ultrathin copper foil comprises a cathode roller (1), an anode tank (2) matched with the cathode roller (1) and annular end plates (3) respectively arranged at two ends of the roller surface of the cathode roller (1); the cathode roll is characterized in that the side surfaces of the two annular end plates (3) are both level to the roll surface of the cathode roll (1), one end of the side surface of each annular end plate (3), which is close to the cathode roll (1), is respectively provided with an annular notch (4), the annular notch (4) is matched with the roll surface of the corresponding cathode roll (1) to form an annular sealing groove, and the depth of the annular sealing groove is 1.2-1.8 mm;
the sealing ring guide mechanisms (5) are arranged on the upper end faces of the anode grooves (2) on the side edges of the annular end plates (3), annular sealing rings (6) are wound between the outer end faces of the contact portions of the annular end plates (3) in the anode grooves (2) and the cathode roller (1) and the sealing ring guide mechanisms (5), and annular sealing convex blocks (6a) matched with the annular sealing grooves are arranged on the sealing faces of the annular sealing rings (6).
2. The sealing apparatus for manufacturing an ultra-thin copper foil as claimed in claim 1, wherein the width of the annular sealing groove is 2-4 mm.
3. The sealing device for manufacturing an ultra-thin copper foil as claimed in claim 1, wherein the o-ring (6) has a width of 8-12mm and a thickness of 3-7 mm.
4. The sealing device for manufacturing an ultra-thin copper foil as claimed in claim 1, wherein said packing guide means (5) is composed of two sets of guide members (5a) fitted to each other; two groups of guide assemblies (5a) which are matched with each other are respectively arranged on the upper end surface of the anode groove (2) which is opposite to the annular sealing groove;
the guide assembly (5a) consists of an inner guide wheel (5b) which is arranged on the upper end surface of the anode groove (2) and has a central axis parallel to the central axis of the cathode roller (1) and an outer guide wheel (5c) which is arranged on the upper end surface of the anode groove (2) on one side of the inner guide wheel (5b) far away from the annular sealing groove and has a central axis vertical to the central axis of the cathode roller (1); a first trapezoidal groove (5e) matched with the back surface of the annular sealing ring (6) is formed in the curved surfaces of the inner guide wheel (5b) and the outer guide wheel (5c) along the circumferential direction;
each annular sealing ring (6) is wound on the lower half part of the outer end face of the contact part of the corresponding annular end plate (3) and the cathode roller (1), and then is led out by the inner guide wheels (5b) of the two groups of mutually matched guide assemblies (5a) and rotates and turns to the outer guide wheels (5c) to form a circle.
5. The sealing device for manufacturing an ultra-thin copper foil as claimed in claim 4, wherein each of the first trapezoidal grooves (5e) has a width larger than the sealing surface of the o-ring (6), and each of the first trapezoidal grooves (5e) has an inner width of 10-14mm and an outer width of 11-15 mm.
6. The sealing device for producing the ultra-thin copper foil as claimed in claim 4, wherein a tensioning mechanism (7) is provided on the upper end surface of the anode tank (2) between the two sets of guide assemblies (5a) which are engaged with each other, the tensioning mechanism (7) is composed of a mounting seat (7a) provided on the upper end surface of the anode tank (2), two fixed guide wheels (7b) provided on the upper end surface of the mounting seat (7a) at intervals along the extending direction of the annular seal ring (6) and having central axes perpendicular to the central axis of the cathode roll (1), an adjusting assembly (7c) provided on the upper end surface of the mounting seat (7a) between the two fixed guide wheels (7b), and an adjusting guide wheel (7d) provided on the adjusting assembly (7c) and having central axes perpendicular to the central axis of the cathode roll (1);
a clamping groove (7e) matched with the sealing surface of the annular sealing ring (6) and the annular sealing lug (6a) is formed in the curved surface of each fixed guide wheel (7b) along the circumferential direction; a second trapezoidal groove with the same shape and size as the first trapezoidal groove (5e) is arranged on the curved surface of the adjusting guide wheel (7d) along the circumferential direction;
each annular sealing ring (6) is respectively wound on the lower half part of the outer end face of the contact part of the corresponding annular end plate (3) and the cathode roller (1), and then is guided to the corresponding tensioning mechanism (7) through two groups of mutually matched guide assemblies (5a) to form a ring.
7. The sealing device for producing the ultra-thin copper foil as claimed in claim 6, wherein the adjusting assembly (7c) is composed of two mounting blocks (7f) arranged on the upper end surface of the mounting seat (7a) between the two fixed guide wheels (7b) at intervals, a screw rod (7g) movably connected to the two mounting blocks (7f) through a bearing and having a central axis parallel to the central axis of the cathode roller (1), and a moving block (7h) movably connected to the adjusting guide wheel (7d) through a rotating shaft and in threaded connection with the screw rod (7 g); the bottom of the moving block (7h) is provided with a limiting convex block, and a guide sliding groove matched with the limiting convex block is arranged on the mounting seat (7a) corresponding to the limiting convex block along the central axis of the screw rod (7 g).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920983965.5U CN210481541U (en) | 2019-06-27 | 2019-06-27 | Sealing device for producing ultrathin copper foil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920983965.5U CN210481541U (en) | 2019-06-27 | 2019-06-27 | Sealing device for producing ultrathin copper foil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210481541U true CN210481541U (en) | 2020-05-08 |
Family
ID=70514934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920983965.5U Active CN210481541U (en) | 2019-06-27 | 2019-06-27 | Sealing device for producing ultrathin copper foil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210481541U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962120A (en) * | 2021-02-04 | 2021-06-15 | 赣州逸豪新材料股份有限公司 | Copper foil manufacturing device for reducing edge and corner damage of electrolytic copper foil and manufacturing process thereof |
| CN114164464A (en) * | 2021-11-08 | 2022-03-11 | 灵宝华鑫铜箔有限责任公司 | Process for producing cathode roller and cathode roller PVA (polyvinyl alcohol) by using 4-8um ultrathin lithium electrolytic copper foil |
| CN114293233A (en) * | 2022-01-13 | 2022-04-08 | 广东嘉元科技股份有限公司 | Sealing device used between cathode roller and anode tank in copper foil pickling |
-
2019
- 2019-06-27 CN CN201920983965.5U patent/CN210481541U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112962120A (en) * | 2021-02-04 | 2021-06-15 | 赣州逸豪新材料股份有限公司 | Copper foil manufacturing device for reducing edge and corner damage of electrolytic copper foil and manufacturing process thereof |
| CN114164464A (en) * | 2021-11-08 | 2022-03-11 | 灵宝华鑫铜箔有限责任公司 | Process for producing cathode roller and cathode roller PVA (polyvinyl alcohol) by using 4-8um ultrathin lithium electrolytic copper foil |
| CN114293233A (en) * | 2022-01-13 | 2022-04-08 | 广东嘉元科技股份有限公司 | Sealing device used between cathode roller and anode tank in copper foil pickling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210481541U (en) | Sealing device for producing ultrathin copper foil | |
| CN204545353U (en) | Internal surface of crystallizer electroplating device mounting structure | |
| CN211104442U (en) | PTFE filter bag industrial felt production is with high-efficient warming mill | |
| CN111041537A (en) | Prevent electrically conductive tool of jumping material | |
| CN204401125U (en) | Self-rotary bore plating antiseepage frock | |
| CN206849977U (en) | A kind of sutomatic winding machine pole piece fixed length mechanism | |
| CN206545061U (en) | Electrode fixing device | |
| CN205275732U (en) | Plating process belted steel deviation correcting device | |
| CN212426209U (en) | Prevent electrically conductive tool of jumping material | |
| CN205205253U (en) | Movable shielding structure of electrolytic copper foil | |
| CN212505107U (en) | Cathode roll edge sealing structure for electrolytic copper foil production | |
| CN204058620U (en) | The continuous chromium plating production line of a kind of novel bar | |
| CN208062168U (en) | A kind of lithium battery production pole piece preforming device | |
| CN210040404U (en) | Sealing structure of vanadium cell | |
| CN208662960U (en) | A kind of stainless steel pipes connector process equipment | |
| CN201801614U (en) | Novel cathode roller foil forming machine | |
| CN215789940U (en) | Manipulator for new energy automobile manufacturing | |
| CN208604234U (en) | It is a kind of based on multi-field Novel electric plated pen | |
| CN213555167U (en) | Semiconductor rubber-coated roller convenient to adjust | |
| CN218286700U (en) | Combined type roll-in equipment is used in processing of PEEK panel | |
| CN217971850U (en) | Adhesive tape production winding device | |
| CN216129694U (en) | Electroplating device for crystallizer copper plate surface composite coating | |
| CN209741266U (en) | Driver plate and sleeve cup coating clamp for vacuum coating | |
| CN216185972U (en) | Mounting structure of rudder bearing on boats and ships rudder system watertight | |
| CN217867281U (en) | Device for improving thin cloth coiling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |