CN212496984U - Disc edge polishing device for plastic welding wire shaft - Google Patents
Disc edge polishing device for plastic welding wire shaft Download PDFInfo
- Publication number
- CN212496984U CN212496984U CN202021379944.1U CN202021379944U CN212496984U CN 212496984 U CN212496984 U CN 212496984U CN 202021379944 U CN202021379944 U CN 202021379944U CN 212496984 U CN212496984 U CN 212496984U
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- fixedly connected
- welding wire
- grinding device
- sliding
- outer side
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- Expired - Fee Related
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- 238000005498 polishing Methods 0.000 title claims abstract description 83
- 238000004023 plastic welding Methods 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 82
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 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
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model relates to a welding wire shaft polishing technical field, in particular to a disc edge polishing device for a plastic welding wire shaft, which comprises a polishing device base, wherein the front side of the bottom end of the polishing device base is fixedly connected with a telescopic rod fixing base, the outer side of the bottom end of the telescopic rod fixing base is fixedly connected with a multi-stage electric telescopic rod, the end of a telescopic main shaft of the multi-stage electric telescopic rod is fixedly connected with a fixing connecting block, the inner side of the left end of the fixing connecting block is fixedly connected with a first motor, the end of the main shaft of the first motor is fixedly connected with a welding wire shaft inner wall polishing device assembly, the outer side of one end of the welding wire shaft inner wall polishing device assembly is in contact connection with a welding wire shaft assembly, the outer side of the front end of the polishing device base is fixedly connected with a welding wire shaft disc edge polishing device assembly, in the, the polishing device for the disc edge of the welding wire shaft can polish the disc edge and the outer shaft of the welding wire shaft assembly.
Description
Technical Field
The utility model relates to a welding wire axle technical field that polishes specifically is a plastics welding wire is disc limit grinding device for axle.
Background
A wire shaft, which is a device for winding a wire and is shaped like a reel, is also called a wire reel, and with the rapid development of the plastic industry, iron wire shafts have been gradually replaced by plastic wire shafts.
The plastic welding wire shaft is generally manufactured through an injection molding process, convex marks are left at the joint of a mold when the plastic welding wire shaft is manufactured through the injection molding process, the roughness of the surface of a finished product of the plastic welding wire shaft is different according to different selection of materials, and the grade ratio of the plastic welding wire shaft is lower if the plastic welding wire shaft is not processed, so that the disc edge grinding device for the plastic welding wire shaft is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a plastics welding wire is disc limit grinding device for axle to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a disc edge polishing device for a plastic welding wire shaft comprises a polishing device base, wherein a telescopic rod fixing base is fixedly connected to the front side of the bottom end of the polishing device base, a multi-stage electric telescopic rod is fixedly connected to the outer side of the bottom end of the telescopic rod fixing base, a fixing connecting block is fixedly connected to the tail end of a telescopic main shaft of the multi-stage electric telescopic rod, a first motor is fixedly connected to the inner side of the left end of the fixing connecting block, a welding wire shaft inner wall polishing device assembly is fixedly connected to the tail end of the main shaft of the first motor, and the welding wire shaft inner wall polishing device assembly comprises an inner wall polishing device rotating shaft, an inner wall polishing device rotating main body, a second motor, a rotating connecting sheet, a connecting soft rope, an arc-shaped polishing sheet, a first sliding connecting rod, a first sliding limiting head and a first compression spring, wherein the outer side of the bottom end of, the welding wire shaft inner wall grinding device assembly is characterized in that the welding wire shaft assembly is in contact connection with the outer side of one end of the welding wire shaft inner wall grinding device assembly, the grinding device assembly is fixedly connected with the outer side of the welding wire shaft disc of the grinding device base and comprises a disc edge grinding device fixing block, a second sliding connecting rod, a second sliding limiting head, a small electric telescopic rod, a pushing connecting plate, a third sliding limiting head, a third sliding connecting rod, a grinding plate, a pressure sensor and a second compression spring, and the outer side of the rear end of the disc edge grinding device fixing block is fixedly connected with the outer side of the front end of the grinding device base.
Preferably, the inner wall grinding device rotating body is fixedly connected to the outer side of the top end of the inner wall grinding device rotating shaft, a second motor is fixedly connected to the central position of the inner side of one end of the inner wall grinding device rotating body, a rotating connecting piece is fixedly connected to the tail end of a main shaft of the second motor, and connecting soft ropes are fixedly connected to the front sides of the upper end and the lower end of the rotating connecting piece.
Preferably, the terminal outside fixedly connected with arc polishing piece of connecting the rope, and the one end outside of arc polishing piece is connected with the inboard contact of one end of welding wire axle assembly, the inboard first sliding connection pole of fixedly connected with of one end of arc polishing piece, the first slip spacing head of the terminal outside fixedly connected with of first sliding connection pole, and the one end outside of first sliding connection pole, first slip spacing head all with the inboard sliding connection of one end of inner wall grinding device rotation main part, the first compression spring of the one end outside fixedly connected with of first slip spacing head.
Preferably, the inboard sliding connection of one end of disc limit grinding device fixed block has second sliding connection pole, the slip spacing head of the one end outside fixedly connected with second of second sliding connection pole, the inboard central point department fixedly connected with small-size electric telescopic handle of one end of disc limit grinding device fixed block, small-size electric telescopic handle's the terminal fixedly connected with of flexible main shaft promotes the connecting plate, and promotes the one end outside of connecting plate and the terminal outside fixed connection of second sliding connection pole, the inboard sliding connection of one end that promotes the connecting plate has the third to slide the spacing head.
Preferably, the one end outside fixedly connected with third sliding connection pole of third slip spacing head, and the one end outside of third sliding connection pole and the inboard sliding connection of one end that promotes the connecting plate, the terminal outside fixedly connected with board of polishing of third sliding connection pole, the one end outside fixedly connected with pressure sensor of board of polishing, and the one end outside of pressure sensor and the inboard sliding connection of one end that promotes the connecting plate, pressure sensor's the one end outside fixedly connected with second compression spring, and the terminal outside of second compression spring and the inboard fixed connection of one end that promotes the connecting plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the multistage electric telescopic rod, the fixed connecting block, the first motor and the welding wire shaft inner wall polishing device assembly are arranged, so that the device has the function of polishing the inner wall of the welding wire shaft assembly, meanwhile, the welding wire shaft assembly can be fixed, the arc polishing piece can be expanded by the elasticity of the first compression spring, the pressure applied by the arc polishing piece to the inner wall of the welding wire shaft assembly is larger, the welding wire shaft assembly can be fixed and driven to rotate, the second motor drives the rotating connecting piece to rotate so as to drive the connecting soft rope to move, the connecting soft rope drives the arc polishing piece to contract, the arc polishing piece is also contacted with the inner wall surface of the welding wire shaft assembly, but the pressure ratio is smaller, the inner wall surface of the welding wire shaft assembly can be polished by rotating, so that the welding wire shaft assembly can be polished sufficiently by the device without using a clamp, and the investment cost is reduced.
2. In the utility model, the disc edge and the outer shaft of the welding wire shaft assembly can be polished by the welding wire shaft disc edge polishing device assembly, the welding wire shaft assembly can be clamped and fixed at the same time, the small electric telescopic rod drives the pushing connecting plate to move, the pushing connecting plate can drive the second compression spring to drive the pressure sensor to move, the pressure sensor can drive the polishing plate to move to apply pressure to the welding wire shaft assembly, the pressure applied to the welding wire shaft assembly by the polishing plate can be expressed by the pressure applied to the pressure sensor by the second compression spring, the concrete numerical value of the pressure applied to the welding wire shaft assembly by the polishing plate can be known by detecting the pressure of the second compression spring by the pressure sensor, when the pressure applied to the welding wire shaft assembly by the polishing plate is small, the welding wire shaft assembly can be polished by the rotation of the welding wire shaft assembly, when the pressure that the board of polishing applyed the welding wire axle assembly great, can step up the welding wire axle assembly fixedly, make the device accurate to welding wire axle assembly dynamics control of polishing, improve the effect of polishing.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the inner wall polishing device assembly of the welding wire shaft of the present invention;
FIG. 3 is a top view of the installation structure of the arc polishing sheet of the present invention;
fig. 4 is the utility model discloses welding wire axle disc limit grinding device assembly's overall structure cross-sectional view.
In the figure: 1-polishing device base, 2-telescopic rod fixing base, 3-multi-stage electric telescopic rod, 4-fixed connecting block, 5-first motor, 6-welding wire shaft inner wall polishing device assembly, 601-inner wall polishing device rotating shaft, 602-inner wall polishing device rotating main body, 603-second motor, 604-rotating connecting sheet, 605-connecting soft rope, 606-arc polishing sheet, 607-first sliding connecting rod, 608-first sliding limiting head, 609-first compression spring, 7-welding wire shaft assembly, 8-welding wire shaft disc edge polishing device assembly, 801-disc edge polishing device fixing block, 802-second sliding connecting rod, 803-second sliding limiting head, 804-small electric telescopic rod, 805-pushing connecting plate, 806-third sliding limiting head, 807-third sliding connecting rod, 808-polishing plate, 809-pressure sensor, 8010-second compression spring.
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. 1-4, the present invention provides a technical solution:
the utility model provides a plastics welding wire is disc limit grinding device for axle, including grinding device base 1, grinding device base 1's bottom front side fixedly connected with telescopic link unable adjustment base 2, telescopic link unable adjustment base 2's the multistage electric telescopic handle 3 of bottom outside fixedly connected with, multistage electric telescopic handle 3's the terminal fixedly connected with fixed connection block 4 of telescopic main shaft, this kind of setting can make multistage electric telescopic handle 3 drive fixed connection block 4 and remove, the inboard fixedly connected with first motor 5 in left end of fixed connection block 4, the terminal fixedly connected with welding wire axle inner wall grinding device assembly 6 of main shaft of first motor 5, this kind of setting can make first motor 5 drive welding wire axle inner wall grinding device assembly 6 and rotate, welding wire axle inner wall grinding device assembly 6 is including inner wall grinding device axis of rotation 601, inner wall grinding device rotates main part 602, second motor 603, rotate connection piece 604, The inner wall polishing device comprises a connecting soft rope 605, an arc polishing piece 606, a first sliding connecting rod 607, a first sliding limiting head 608 and a first compression spring 609, the outer side of the bottom end of an inner wall polishing device rotating shaft 601 is fixedly connected with the tail end of a main shaft of a first motor 5, the outer side of one end of a welding wire shaft inner wall polishing device assembly 6 is connected with a welding wire shaft assembly 7 in a contact mode, the outer side of the front end of a polishing device base 1 is fixedly connected with a welding wire shaft disc edge polishing device assembly 8, the welding wire shaft disc edge polishing device assembly 8 can polish the disc edge of the welding wire shaft assembly 7 through the arrangement, and the welding wire shaft disc edge polishing device assembly 8 comprises a disc edge polishing device fixing block 801, a second sliding connecting rod 802, a second sliding limiting head 803, a small electric telescopic rod 804, a pushing connecting plate 805, a third sliding limiting head 806, a third sliding connecting rod 807, a polishing plate 808 and a pressure sensor 809, The second compression spring 8010, and the outer side of the rear end of the disc edge grinding device fixing block 801 is fixedly connected with the outer side of the front end of the grinding device base 1.
An inner wall grinding device rotating main body 602 is fixedly connected to the outer side of the top end of an inner wall grinding device rotating shaft 601, a second motor 603 is fixedly connected to the central position of the inner side of one end of the inner wall grinding device rotating main body 602, a rotating connecting piece 604 is fixedly connected to the end of a main shaft of the second motor 603, the second motor 603 can drive the rotating connecting piece 604 to rotate by the arrangement, a connecting soft rope 605 is fixedly connected to the front sides of the upper end and the lower end of the rotating connecting piece 604, the rotating connecting piece 604 can drive the connecting soft rope 605 to move by the arrangement, an arc grinding piece 606 is fixedly connected to the outer side of the end of the connecting soft rope 605, the outer side of one end of the arc grinding piece 606 is in contact connection with the inner side of one end of the welding wire shaft assembly 7, the arc grinding piece 606 can grind the inner wall surface of the welding wire shaft assembly 7, a first sliding limiting head 608 is fixedly connected to the outer side of the tail end of the first sliding connecting rod 607, the outer sides of one ends of the first sliding connecting rod 607 and the first sliding limiting head 608 are slidably connected with the inner side of one end of the inner wall polishing device rotating main body 602, a first compression spring 609 is fixedly connected to the outer side of one end of the first sliding limiting head 608, the arrangement can enable the first compression spring 609 to exert an elastic force on the first sliding limiting head 608, a second sliding connecting rod 802 is slidably connected to the inner side of one end of the disc edge polishing device fixing block 801, a second sliding limiting head 803 is fixedly connected to the outer side of one end of the second sliding connecting rod 802, a small electric telescopic rod 804 is fixedly connected to the central position of the inner side of one end of the disc edge polishing device fixing block 801, a pushing connecting plate 805 is fixedly connected to the tail end of a telescopic main shaft of the small electric telescopic rod 804, the arrangement can enable the small electric, and the outer side of one end of the pushing connecting plate 805 is fixedly connected with the outer side of the tail end of the second sliding connecting rod 802, the pushing connecting plate 805 can move more stably through the second sliding connecting rod 802 by the arrangement, the inner side of one end of the pushing connecting plate 805 is connected with a third sliding limiting head 806 in a sliding manner, the outer side of one end of the third sliding limiting head 806 is fixedly connected with a third sliding connecting rod 807, the outer side of one end of the third sliding connecting rod 807 is connected with the inner side of one end of the pushing connecting plate 805 in a sliding manner, the outer side of the tail end of the third sliding connecting rod 807 is fixedly connected with a polishing plate 808, the arrangement can enable the polishing plate 808 to polish the disk surface of the wire shaft assembly 7, the outer side of one end of the polishing plate 808 is fixedly connected with a pressure sensor 809, the outer side of one end of the pressure sensor 809 is connected with the inner side of one end of the pushing connecting, this arrangement allows the second compression spring 8010 to exert an elastic force on the pressure sensor 809, and the outer side of the tip of the second compression spring 8010 is fixedly coupled to the inner side of one end of the push link plate 805.
The working process is as follows: the utility model discloses need supply power through external power source earlier before using, arc polishing piece 606 can receive the elasticity of first compression spring 609 and open, arc polishing piece 606 is great to the pressure that welding wire axle assembly 7 inner wall was applyed this moment, can fix welding wire axle assembly 7 and drive its rotation, through the circular telegram of first motor 5, can drive welding wire axle inner wall grinding device assembly 6 after first motor 5 circular telegram and drive welding wire axle assembly 7 and rotate, circular telegram for second motor 603, drive rotation connection piece 604 through second motor 603 and rotate and drive and connect the rope 605 and remove, make and connect the rope 605 and drive arc polishing piece 606 and contract, make arc polishing piece same with welding wire axle assembly 7 internal wall contact, but pressure ratio is less, can realize rotating and polish welding wire axle assembly 7 internal wall, when connecting the rope and driving arc polishing piece 606 and contracting after not contacting welding wire axle assembly 7, the fixed connecting block 4 is driven by the multi-stage electric telescopic rod 3 to drive the first motor 5 to move downwards, the first motor 5 can drive the polishing device assembly 6 on the inner wall of the welding wire shaft to move downwards and be drawn out from the inner side of the welding wire shaft assembly 7, the welding wire shaft assembly 7 can be mounted and dismounted, the small electric telescopic rod 804 drives the pushing connecting plate 805 to move, the pushing connecting plate 805 can drive the second compression spring 8010 to drive the pressure sensor 809 to move, the pressure sensor 809 can drive the polishing plate 808 to move to apply pressure to the welding wire shaft assembly 7, the pressure applied to the welding wire shaft assembly 7 by the polishing plate 808 can be expressed by the pressure applied to the pressure sensor 809 by the second compression spring 8010, the specific value of the pressure applied to the welding wire shaft assembly 7 by the polishing plate 808 can be known by detecting the pressure of the second compression spring 8010 by the pressure sensor 809, when the pressure applied to the welding wire shaft assembly 7 by the polishing plate 808 is smaller, can polish it through the rotation of welding wire axle assembly 7 self, when the pressure that polishing plate 808 applyed to welding wire axle assembly 7 is great, can step up welding wire axle assembly 7 fixedly, realize welding wire axle inner wall grinding device assembly 6 and rotate and polish 7 internal faces of welding wire axle assembly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a plastics are disc limit grinding device for welding wire axle, includes grinding device base (1), its characterized in that: the bottom front side fixedly connected with telescopic link unable adjustment base (2) of grinding device base (1), the bottom outside fixedly connected with multistage electric telescopic handle (3) of telescopic link unable adjustment base (2), the terminal fixedly connected with fixed connection block (4) of the flexible main shaft of multistage electric telescopic handle (3), the inboard fixedly connected with first motor (5) of left end of fixed connection block (4), the terminal fixedly connected with welding wire axle inner wall grinding device assembly (6) of main shaft of first motor (5), welding wire axle inner wall grinding device assembly (6) is including inner wall grinding device axis of rotation (601), inner wall grinding device rotation main part (602), second motor (603), rotation connection piece (604), connect soft rope (605), arc abrasive disc (606), first sliding connection pole (607), first slip limit head (608), A first compression spring (609), the outer side of the bottom end of the rotating shaft (601) of the inner wall grinding device is fixedly connected with the tail end of the main shaft of the first motor (5), the outer side of one end of the welding wire shaft inner wall polishing device assembly (6) is in contact connection with a welding wire shaft assembly (7), the outer side of the front end of the polishing device base (1) is fixedly connected with a welding wire shaft disc edge polishing device assembly (8), the welding wire shaft disc edge polishing device assembly (8) comprises a disc edge polishing device fixing block (801), a second sliding connecting rod (802), a second sliding limiting head (803), a small electric telescopic rod (804), a pushing connecting plate (805), a third sliding limiting head (806), a third sliding connecting rod (807), a polishing plate (808), a pressure sensor (809) and a second compression spring (8010), and the outer side of the rear end of the disc edge polishing device fixing block (801) is fixedly connected with the outer side of the front end of the polishing device base (1).
2. The disc edge grinding device for the plastic welding wire shaft according to claim 1, wherein: the inner wall grinding device rotating body (602) is fixedly connected to the outer side of the top end of the inner wall grinding device rotating shaft (601), a second motor (603) is fixedly connected to the central position of the inner side of one end of the inner wall grinding device rotating body (602), a rotating connecting piece (604) is fixedly connected to the tail end of a main shaft of the second motor (603), and a connecting soft rope (605) is fixedly connected to the front sides of the upper end and the lower end of the rotating connecting piece (604).
3. The disc edge grinding device for the plastic welding wire shaft according to claim 1, wherein: the welding wire grinding device is characterized in that an arc-shaped grinding piece (606) is fixedly connected to the outer side of the tail end of the connecting soft rope (605), the outer side of one end of the arc-shaped grinding piece (606) is in contact connection with the inner side of one end of the welding wire shaft assembly (7), a first sliding connecting rod (607) is fixedly connected to the inner side of one end of the arc-shaped grinding piece (606), a first sliding limiting head (608) is fixedly connected to the outer side of the tail end of the first sliding connecting rod (607), the outer side of one end of the first sliding limiting head (608) is in sliding connection with the inner side of one end of the inner wall grinding device rotating main body (602), and a first compression spring (609) is fixedly connected to the outer side of one end of the first sliding limiting head (.
4. The disc edge grinding device for the plastic welding wire shaft according to claim 1, wherein: the inboard sliding connection of one end of disc limit grinding device fixed block (801) has second sliding connection pole (802), the one end outside fixedly connected with second slip stopper (803) of second sliding connection pole (802), the inboard central point department fixedly connected with small-size electric telescopic handle (804) of one end of disc limit grinding device fixed block (801), the terminal fixedly connected with of flexible main shaft of small-size electric telescopic handle (804) promotes connecting plate (805), and promotes the terminal outside fixed connection of the one end outside and second sliding connection pole (802) of connecting plate (805), the inboard sliding connection of one end of promoting connecting plate (805) has third slip stopper (806).
5. The disc edge grinding device for the plastic welding wire shaft according to claim 1, wherein: the one end outside fixedly connected with third sliding connecting rod (807) of third slip stopper head (806), and the one end outside and the inboard sliding connection of the one end that promotes connecting plate (805) of third sliding connecting rod (807), the terminal outside fixedly connected with of third sliding connecting rod (807) grinds board (808), the one end outside fixedly connected with pressure sensor (809) of board (808), and the one end outside and the inboard sliding connection of the one end that promotes connecting plate (805) of pressure sensor (809), the one end outside fixedly connected with second compression spring (8010) of pressure sensor (809), and the terminal outside and the inboard fixed connection of the one end that promotes connecting plate (805) of second compression spring (8010).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021379944.1U CN212496984U (en) | 2020-07-14 | 2020-07-14 | Disc edge polishing device for plastic welding wire shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021379944.1U CN212496984U (en) | 2020-07-14 | 2020-07-14 | Disc edge polishing device for plastic welding wire shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212496984U true CN212496984U (en) | 2021-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021379944.1U Expired - Fee Related CN212496984U (en) | 2020-07-14 | 2020-07-14 | Disc edge polishing device for plastic welding wire shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212496984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814811A (en) * | 2021-09-29 | 2021-12-21 | 安徽胜方工程技术有限公司 | Surface polishing equipment for petroleum sieve tube |
-
2020
- 2020-07-14 CN CN202021379944.1U patent/CN212496984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814811A (en) * | 2021-09-29 | 2021-12-21 | 安徽胜方工程技术有限公司 | Surface polishing equipment for petroleum sieve tube |
| CN113814811B (en) * | 2021-09-29 | 2022-10-04 | 河北斯洛特石油专用管制造有限公司 | Surface polishing equipment for petroleum sieve tube |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |