CN210975019U - Variable magnetic resistance magnetic suspension weft insertion device - Google Patents
Variable magnetic resistance magnetic suspension weft insertion device Download PDFInfo
- Publication number
- CN210975019U CN210975019U CN201921505977.3U CN201921505977U CN210975019U CN 210975019 U CN210975019 U CN 210975019U CN 201921505977 U CN201921505977 U CN 201921505977U CN 210975019 U CN210975019 U CN 210975019U
- Authority
- CN
- China
- Prior art keywords
- weft insertion
- rotor
- magnetic
- sheet
- weft
- 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.)
- Withdrawn - After Issue
Links
- 238000003780 insertion Methods 0.000 title claims abstract description 95
- 230000037431 insertion Effects 0.000 title claims abstract description 95
- 239000000725 suspension Substances 0.000 title claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 84
- 229910052742 iron Inorganic materials 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000005339 levitation Methods 0.000 claims 8
- 230000001133 acceleration Effects 0.000 abstract 1
- 238000009941 weaving Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000005300 metallic glass Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Looms (AREA)
Abstract
The utility model relates to a variable reluctance magnetic suspension weft insertion device, which is characterized in that the device comprises an electromagnetic component and an electromagnetic controller; the electromagnetic assembly comprises an electromagnet coil, a magnetic conductive upright post and a rotor weft insertion sheet; the electromagnet coils and the magnetic conductive upright posts are linearly arranged and are arranged in a matched manner, and each electromagnet coil consists of an internal iron core and a coil wound on the periphery of the iron core; the top parts of the magnetic conductive upright posts extend oppositely to form a horizontal magnetic suspension track; the rotor weft insertion sheet consists of a wear-resistant shell and a rotor iron sheet embedded on the wear-resistant shell; the electromagnet coil is clamped in the middle of the magnetic conduction stand column, and the two ends of the iron core of the electromagnet coil and the magnetic conduction stand column are of an integrally formed structure or are in close contact connection without air gaps. The utility model discloses a this kind of magnetic resistance changes acceleration and the deceleration motion of drive wefting piece, and then control wefting piece seesaw. The active cell weft guide sheet can be designed into a weft feeder and a weft connector according to requirements, and the weft feeder and the weft connector are connected in the middle of the loom.
Description
Technical Field
The utility model relates to a weft insertion device of loom, specifically speaking are magnetic suspension weft insertion device of loom belongs to spinning machine technical field.
Background
Currently, the looms on the market can be divided into two types, namely shuttle looms and shuttleless looms according to different weft insertion modes of weaving. The shuttle loom is a loom which adopts a traditional shuttle (a wood shuttle or a plastic shuttle) to carry out weft insertion; the weft insertion modes of shuttleless looms are various and mainly include rapier, jet (air jet, water jet), gripper, multi-shed (multi-phase) and weaving. Shuttle looms are often projected repeatedly due to the fact that shuttles of the shuttle looms are large in size and heavy in weight, and therefore a series of problems of large vibration, high noise, low speed, low efficiency and the like of the looms are caused. The weft insertion modes of shuttleless looms have respective defects and are of weaving types which cannot be applied. Particularly in terms of width, the motion trend of the weft insertion blades of most of the prior shuttleless looms decreases gradually from strong to weak in the weft insertion process, so that a certain limit weaving width exists, and the requirement of larger weaving width cannot be met.
In view of the above, the weft insertion device capable of improving the weaving capacity of the width of the fabric is provided, so that the design thought of a fabric designer can be widened, and the requirement of the market on the wide fabric can be further met.
Disclosure of Invention
The utility model aims at providing a become magnetic suspension weft insertion device, the device utilize the electromagnetic resistance to change, and armature is to this principle of the minimum direction motion of magnetic resistance, realizes by electromagnetic power drive weft insertion ware to through the configuration optimization of whole device, the electromagnetic power that makes the drive weft insertion ware keeps lasting invariable, and then realizes the weft insertion process of loom.
In order to solve the above problems, the utility model adopts the following technical scheme:
a variable reluctance magnetic suspension weft insertion device is characterized by comprising: the electromagnetic control device comprises an electromagnetic assembly and an electromagnetic controller used for controlling the on-off of the electromagnetic assembly; wherein the content of the first and second substances,
the electromagnetic assembly comprises an electromagnet coil electrically connected with the electromagnetic controller, a magnetic conductive upright post for magnetic conduction and a rotor weft insertion sheet erected and installed at the top of the magnetic conductive upright post;
the electromagnet coils are arranged in a straight line, and each electromagnet coil consists of an internal iron core and a coil wound on the periphery of the iron core;
the magnetic conductive upright posts are matched with the electromagnet coils in number and are also linearly arranged, each magnetic conductive upright post is provided with a pair of upright posts which are oppositely arranged, and the tops of the two upright posts oppositely extend to form a horizontal magnetic suspension track;
the rotor weft insertion sheet consists of a wear-resistant shell and a rotor iron sheet embedded on the wear-resistant shell;
the electromagnet coil is clamped in the middle of the magnetic conduction stand column, and the two ends of the iron core of the electromagnet coil and the magnetic conduction stand column are of an integrally formed structure or are in close contact connection without air gaps.
The rotor iron sheet of the rotor weft insertion sheet has a profile shape with gradually-changed air gaps from large to small formed between the rotor iron sheet and the end part of the upright post forming the magnetic suspension track, the profile shape is generally most effective in an arc shape or an oblique line shape, and the rotor iron sheet with the profile shape drives the whole rotor weft insertion sheet to move along a preset direction by means of the gradually-changed air gaps formed between the rotor iron sheet and the end part of the upright post.
The magnetic suspension tracks are sliding grooves formed in the tops of the two columns in opposite directions, and comprise first sliding grooves used for accommodating one sides of the rotor weft insertion pieces and second sliding grooves used for accommodating the other sides of the rotor weft insertion pieces, and the first sliding grooves and the second sliding grooves are formed in the tops of the electromagnet coils in opposite directions to form horizontal magnetic suspension tracks.
The wear-resistant shell of the active cell weft insertion sheet is made of light wear-resistant materials;
the rotor iron sheet and the magnetic conductive upright post of the rotor weft insertion sheet are both made of materials with high magnetic conductivity, high magnetic flux density, low coercive force and low loss, such as amorphous metal materials.
The shell of the rotor weft insertion sheet is of a strip-shaped sheet structure, and the installation positions and the installation quantity of the rotor iron sheets on the shell are matched according to actual requirements.
Furthermore, the mover iron sheet of the mover weft insertion sheet is provided with a hollow part, and the hollow part is used for reducing the dead weight of the whole mover weft insertion sheet so as to improve the movement speed of the mover weft insertion sheet.
Furthermore, the weft insertion device further comprises a base, and the electromagnet coil and the magnetic conduction stand column are fixedly mounted on the base.
The number of the electromagnet coils and the number of the magnetic conductive upright columns can be set according to the width requirement of the fabric.
The electromagnetic controller is electrically connected with the corresponding electromagnet coils through a plurality of leads respectively, and the electromagnetic controller performs specific adaptive adjustment on the electrifying control modes of different electromagnet coils by combining the number of the electromagnet coils and the number and the shape of the rotor iron sheets in the rotor weft insertion sheet.
The utility model discloses a become magnetic suspension weft insertion device, utilize the electromagnet magnetic resistance change, the armature to the minimum direction motion of magnetic resistance principle, through the break-make electricity of controlling different position electro-magnets, realize controlling the active cell weft insertion piece and move forward or backward, and then realize the weft insertion process of loom; meanwhile, the gravity of the weft insertion sheet is overcome through the attraction of the electromagnet, the motion friction resistance of the weft insertion sheet is reduced, the abrasion of the weft insertion sheet is reduced, the service life of the weft insertion sheet is prolonged, and the energy consumption in the weft insertion process is reduced. The utility model discloses a runner wefting piece and solenoid and the cooperation of magnetic conduction stand, the control mode that combines electromagnetic controller, the switching on and off that can control the electro-magnet in order forms the magnetic resistance change between runner wefting piece and magnetic suspension track, through this kind of magnetic resistance change drive wefting piece with higher speed and deceleration motion, and then control wefting piece seesaw. The active cell weft guide sheet can be designed into a weft feeder and a weft connector according to requirements, and the weft feeder and the weft connector are connected in the middle of the loom.
Drawings
FIG. 1: the overall structure schematic diagram of a variable reluctance magnetic suspension weft insertion device;
FIG. 2: the structure schematic diagram of the vertical column at one side of the magnetic conduction vertical column;
FIG. 3: the structure schematic diagram of the mover weft insertion sheet of the first embodiment;
FIG. 4: the structure schematic diagram of a rotor weft insertion sheet of the third embodiment;
FIG. 5: the rotor weft insertion sheet of the fourth embodiment is in a structural schematic view;
FIG. 6: the rotor weft insertion sheet of the fifth embodiment is in a structural schematic view;
in the figure, 11, an electromagnet coil, 12, a magnetic conductive upright post, 12a, an upright post, 12b, a sliding chute, 13, a mover weft insertion sheet, 13a, a wear-resistant shell, 13b, a mover iron sheet, 13c, a hollow part, 2, an electromagnetic controller, 3 and a base.
Detailed Description
The following description of the present invention will be provided with reference to the accompanying drawings, which are used to explain the structure, design principles and operation of the present invention in further detail. It should be understood that the following examples are only selected to fully illustrate the technical solution of the present invention and should not be taken as limiting the scope of the present invention.
Example one
A variable reluctance magnetic suspension weft insertion device mainly structurally comprises a base 3, an electromagnetic assembly 1 installed on the base 3 and an electromagnetic controller 2 used for controlling the on-off of the electromagnetic assembly 1. The electromagnetic assembly consists of an electromagnet coil 11, a magnetic conductive upright post 12 and a mover weft insertion sheet 13; the number of the electromagnet coils 11 and the magnetic conductive upright posts 12 is matched to be 8 groups, the electromagnet coils and the magnetic conductive upright posts are linearly arranged on the base 3, and the mover weft insertion sheet 13 is erected at the top of the electromagnet coils 11 through the magnetic conductive upright posts 12. Each electromagnet coil 11 is composed of an internal iron core and a coil wound on the periphery of the iron core; each magnetic conductive upright post 12 is composed of a pair of upright posts 12a which are oppositely arranged, the magnetic conductive upright posts 12 are made of amorphous metal materials, and the tops of the two upright posts extend horizontally in an opposite direction to form a magnetic suspension track for erecting a rotor weft insertion sheet 13. The electromagnet coil 11 is sandwiched between two vertical columns 12a of the magnetic conductive vertical column 12, in this embodiment, the iron core of the electromagnet coil 11 and the magnetic conductive vertical column 12 are independent members, and two ends of the iron core of the electromagnet coil 11 are in close contact with the vertical column 12a on the adjacent side without air gaps. The mover weft insertion sheet 13 is composed of a wear-resistant casing 13a and a mover iron sheet 13b embedded on the wear-resistant casing 13a, the wear-resistant casing 13a is made of light wear-resistant materials, and the mover iron sheet 13b is made of amorphous metal materials. The housing 13a of the mover weft insertion sheet 13 of the embodiment is integrally in a strip-shaped sheet structure, the middle of the housing 13a is provided with a mover iron sheet 13b with an oval outer contour, the middle of the mover iron sheet 13b is provided with a hollow part 13c, the mover iron sheet 13b in the shape is mounted on the magnetic suspension track, an air gap formed between the mover iron sheet and the end part of the upright post forming the magnetic suspension track is gradually changed, and the whole mover weft insertion sheet can be driven to advance along a predetermined direction by means of the change of the gradually changed air gap. The magnetic suspension track is formed by sliding grooves 12b oppositely formed at the tops of two vertical columns 12a, and comprises a first sliding groove used for accommodating one side of a rotor weft insertion sheet and a second sliding groove used for accommodating the other side of the rotor weft insertion sheet, and the first sliding groove and the second sliding groove oppositely form a horizontal magnetic suspension track at the top of an electromagnet coil. The magnetic conductive upright posts are made of amorphous metal materials. The electromagnetic controller 2 in this embodiment is respectively communicated with 8 electromagnet coils 11 through 8 leads, and the control scheme adopts the way that the 8 electromagnet coils are sequentially electrified, and the rotor weft insertion sheet 13 moves forwards or backwards along the magnetic suspension track through the magnetic resistance change.
Example two
The difference between the present embodiment and the first embodiment is that the shape of the rotor iron sheet 13b of the rotor weft insertion sheet 13 is prismatic.
EXAMPLE III
The difference between the present embodiment and the first embodiment is that 3 mover iron sheets 13b are uniformly distributed on the wear-resistant housing 13a of the mover weft insertion sheet 13, the shape of the mover iron sheet 13b is a hexagon, and both sides of the mover iron sheet 13b have gradually changing arc sections or straight sections, so that a gradually changing size air gap is formed between the mover iron sheet 13b and the end of the column to provide the magnetic motive force. The electromagnetic controller 2 of the present embodiment is energized in such a manner that every three adjacent groups of electromagnetic coils are sequentially energized in an alternating manner to satisfy the normal traveling of the mover weft insertion sheet.
Example four
The difference between the present embodiment and the third embodiment is that the middle of the rotor iron sheet 13b has a hollow portion 13 c.
EXAMPLE five
The difference between this embodiment and the first embodiment is that 11 mover iron sheets 13b are uniformly distributed on the wear-resistant housing 13a of the mover weft insertion sheet 13, and the mover iron sheets 13b are peanut-shaped.
EXAMPLE six
The difference between the present embodiment and the first embodiment is that the iron core of the electromagnet coil 11 and the magnetic conductive column 12 are an integral structure.
EXAMPLE seven
The difference between the present embodiment and the first embodiment is that a rotor iron sheet 13b is installed in the middle of the wear-resistant housing 13a of the rotor weft insertion sheet 13, and the rotor iron sheet 13b is prismatic in shape.
The variable reluctance magnetic suspension weft insertion device of the above embodiment utilizes the principle that when the reluctance of the electromagnet changes, the armature moves to the direction of minimum reluctance.
The utility model discloses a become magnetic suspension wefting insertion device structure and motion principle introduction as follows:
the mover weft insertion sheet 13 is used as a moving armature, the magnetic conductive upright post 12 and the electromagnet coil 11 form an electromagnet capable of generating magnetism, the magnetic conductive upright post 12 and the electromagnet coil 11 are arranged according to a certain distance, and the top structure of the magnetic conductive upright post 12 forms a running track of the mover weft insertion sheet 13. When the mover weft insertion sheet 13 needs to move forwards in an accelerated mode, power is supplied to the front group of electromagnet coils 11 at a proper position, when the electromagnet coils 11 are electrified, magnetic lines of force reach the mover weft insertion sheet 13 through the magnetic conductive upright post 12a at one side, an air gap between the upright post 12a and the mover iron sheet 13b, and then reach the other upright post 12a through the air gap between the mover iron sheet 13b at the other side and the magnetic conductive upright post 12a, so that a magnetic loop is formed. The mover weft insertion piece 13 accelerates forward under the action of forward magnetic force. When the mover weft insertion sheet 13 needs to perform deceleration movement, power is supplied to the electromagnet coils 11 in the next group at a proper position, and the mover weft insertion sheet 13 performs deceleration movement under the action of the back magnetic force. By utilizing the movement principle, the magnetic conductive upright posts 12 and the electromagnet coils 11 which are arranged in groups and number corresponding to the width of the fabric are designed, and the corresponding control circuit is designed, so that the required weft insertion device can be realized.
The utility model discloses a magnetic suspension weft insertion device has following structure advantage:
1. simple structure, easy to assemble, can design loom weaving breadth width as required.
2. The magnetic force is utilized to overcome the gravity of the weft insertion sheet, the frictional resistance between the weft insertion sheet and the track is reduced, the energy consumption in the weft insertion process is reduced, and the service life of the weft insertion sheet is prolonged.
Claims (9)
1. A variable reluctance magnetic suspension weft insertion device is characterized by comprising: the electromagnetic control device comprises an electromagnetic assembly and an electromagnetic controller used for controlling the on-off of the electromagnetic assembly; wherein the content of the first and second substances,
the electromagnetic assembly comprises an electromagnet coil, a magnetic conductive upright post and a rotor weft insertion sheet erected at the top of the magnetic conductive upright post;
the electromagnet coils are arranged in a straight line, and each electromagnet coil consists of an internal iron core and a coil wound on the periphery of the iron core;
the magnetic conductive upright posts are matched with the electromagnet coils in number and are also linearly arranged, each magnetic conductive upright post is provided with a pair of upright posts which are oppositely arranged, and the tops of the two upright posts oppositely extend to form a horizontal magnetic suspension track;
the rotor weft insertion sheet consists of a wear-resistant shell and a rotor iron sheet embedded on the wear-resistant shell;
the electromagnet coil is clamped in the middle of the magnetic conduction stand column, and the two ends of the iron core of the electromagnet coil and the magnetic conduction stand column are of an integrally formed structure or are in close contact connection without air gaps.
2. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
the rotor iron sheet of the rotor weft insertion sheet has a profile shape with gradually changed air gaps from large to small between the rotor iron sheet and the end parts of the stand columns forming the magnetic suspension track, and the profile shape adopts an arc shape or an oblique line shape.
3. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
the magnetic suspension tracks are sliding grooves formed in the tops of the two columns in opposite directions, and comprise first sliding grooves used for accommodating one sides of the rotor weft insertion pieces and second sliding grooves used for accommodating the other sides of the rotor weft insertion pieces, and the first sliding grooves and the second sliding grooves are formed in the tops of the electromagnet coils in opposite directions to form horizontal magnetic suspension tracks.
4. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
and the wear-resistant shell of the active cell weft insertion sheet is made of light wear-resistant materials.
5. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
the shell of the rotor weft insertion sheet is of a strip-shaped sheet structure, and the installation positions and the installation quantity of the rotor iron sheets on the shell are matched according to actual requirements.
6. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
the rotor iron sheet of the rotor weft insertion sheet is provided with a hollow part.
7. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
and the electromagnet coil and the magnetic conduction stand column are fixedly arranged on the base.
8. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
the number of the electromagnet coils and the number of the magnetic conductive stand columns are set according to the width requirement of the fabric width.
9. The variable reluctance magnetic levitation weft insertion apparatus according to claim 1,
the electromagnetic controller is electrically connected with the corresponding electromagnet coils through a plurality of leads respectively, and the electromagnetic controller performs specific adaptive adjustment on the electrifying control modes of different electromagnet coils by combining the number of the electromagnet coils and the number and the shape of the rotor iron sheets in the rotor weft insertion sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921505977.3U CN210975019U (en) | 2019-09-11 | 2019-09-11 | Variable magnetic resistance magnetic suspension weft insertion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921505977.3U CN210975019U (en) | 2019-09-11 | 2019-09-11 | Variable magnetic resistance magnetic suspension weft insertion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210975019U true CN210975019U (en) | 2020-07-10 |
Family
ID=71443817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921505977.3U Withdrawn - After Issue CN210975019U (en) | 2019-09-11 | 2019-09-11 | Variable magnetic resistance magnetic suspension weft insertion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210975019U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485035A (en) * | 2019-09-11 | 2019-11-22 | 宋怡佳 | A kind of variable reluctance magnetic suspension Weft inserting device |
| CN112517243A (en) * | 2020-11-12 | 2021-03-19 | 儒拉玛特自动化技术(长春)有限公司 | Magnetic separation device for magnetic conductive material wafer |
-
2019
- 2019-09-11 CN CN201921505977.3U patent/CN210975019U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485035A (en) * | 2019-09-11 | 2019-11-22 | 宋怡佳 | A kind of variable reluctance magnetic suspension Weft inserting device |
| CN110485035B (en) * | 2019-09-11 | 2024-04-02 | 宋怡佳 | Magnetic suspension weft insertion device with variable magnetic resistance |
| CN112517243A (en) * | 2020-11-12 | 2021-03-19 | 儒拉玛特自动化技术(长春)有限公司 | Magnetic separation device for magnetic conductive material wafer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106143205B (en) | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train | |
| CN210975019U (en) | Variable magnetic resistance magnetic suspension weft insertion device | |
| CN105128692A (en) | High-speed magnetic suspension linear propulsion system | |
| CN110485035B (en) | Magnetic suspension weft insertion device with variable magnetic resistance | |
| CN201994886U (en) | Reciprocating-type electromagnetic power machine | |
| CN205800824U (en) | A kind of coil type permanent-magnet electric levitation device for magnetic-levitation train | |
| CN202839195U (en) | Novel electromagnetic driving mechanism | |
| CN108382264A (en) | Permanent magnetism magnetic suspension linear electromagnetic propulsion system | |
| CN201174286Y (en) | Permanent magnetic and electromagnetic mixed magnet construction | |
| CN113914156A (en) | Magnetic levitation system and levitation train | |
| CN101067257B (en) | Direct-driving circular loom magnetic suspension shuttle device | |
| CN212451827U (en) | Alternating current type ultra-wide electromagnetic drive weft insertion device | |
| CN103036482A (en) | High-efficient electromagnetic drive system | |
| CN2904231Y (en) | Reverse instantaneous watt consumption electromagnetic electric appliance | |
| CN208205926U (en) | A kind of synchronous magnetic artillery transmitter | |
| CN101436811A (en) | Novel permanent magnetic machine | |
| CN111648007A (en) | Shuttle body driving assembly for textile machine and textile machine | |
| CN213266896U (en) | Electromagnetic weft insertion device | |
| CN111130300B (en) | High-temperature superconducting linear synchronous motor | |
| CN203270164U (en) | Automatic-reset electronic jacquard card | |
| CN203866482U (en) | Electromagnetic shuttle-guiding device | |
| CN202818060U (en) | Reciprocating motion apparatus | |
| CN2310377Y (en) | Magnetic force bistable operation device for high-voltage switch cabinet | |
| CN106935438B (en) | Control method and control device for magnetic operating mechanism | |
| CN203219162U (en) | Angle-variable reciprocating motion apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200710 Effective date of abandoning: 20240402 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200710 Effective date of abandoning: 20240402 |