CN110953235B - Screw cap suitable for SMC lining plate, feeding device and control method - Google Patents
Screw cap suitable for SMC lining plate, feeding device and control method Download PDFInfo
- Publication number
- CN110953235B CN110953235B CN201811133165.0A CN201811133165A CN110953235B CN 110953235 B CN110953235 B CN 110953235B CN 201811133165 A CN201811133165 A CN 201811133165A CN 110953235 B CN110953235 B CN 110953235B
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- Prior art keywords
- nut
- screw cap
- feeding
- ring
- guide groove
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/917—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Automatic Assembly (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses an SMC raw material supply device and a control method, wherein the screw cap suitable for an SMC lining plate comprises a cylindrical body with a threaded inner cavity, a bottom ring integrally formed on the outer side of the open end at the bottom of the body, a middle ring integrally formed on the outer side of the middle part of the body and arranged in parallel with the bottom ring at intervals, and a top ring integrally formed on the top of the outer side of the body. The screw cap can be formed by one-step injection molding of materials such as aluminum alloy, and the stable connection with the SMC lining plate is increased by adopting the arrangement of three annular edges on the outer side of the body, the bottom surface area is increased by adopting the design of the bottom annular ring, the screw hole is prevented from being blocked by materials during injection molding, meanwhile, the screw cap is designed to be equal to an outer circle, the screw cap is convenient to be placed in a die hole subsequently, and the accurate positioning is realized.
Description
Technical Field
The invention belongs to the technical field of silver mirror production and preparation, and particularly relates to a screw cap suitable for an SMC lining plate, a feeding device and a control method.
Background
At present, the mirror glass used in the photo-thermal power generation field is about 4mm, and the glass is connected with a bracket by pasting a ceramic plate with bolts, so that the structural strength is completely dependent on the quality of the glass, and the service life of the photo-thermal power generation mirror part can be influenced. The reflectance of such a mirror is only about 93%, and the photo-thermal power generation efficiency is affected.
The applicant proposes a process for using SMC material for hot press molding as a reflector back plate, an SMC composite material and a glass fiber reinforced plastic. The main raw materials consist of GF (special yarn), MD (filler) and various auxiliary agents. The SMC composite material and the SMC molded product thereof have excellent electrical insulation performance, mechanical performance, thermal stability and chemical resistance.
The reflector back plate can provide higher strength and enough toughness, so that the reflector is not damaged in a severe outdoor environment. The positioning of the embedded nut on the bracket is generally realized after the forming, however, the existing nut is placed manually, so that the efficiency is low and potential safety hazards exist.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a screw cap suitable for an SMC lining plate, which effectively realizes automatic feeding and has high pre-buried strength.
Another object of the present invention is to provide a nut feeding device, which realizes automatic feeding and improves efficiency.
The invention is realized by the following technical scheme:
a screw cap suitable for SMC lining board comprises a cylindrical body with a threaded inner cavity, a bottom ring integrally formed outside the bottom opening end of the body, the middle ring is integrally formed on the outer side of the middle part of the body and is arranged in parallel with the bottom ring at intervals, and the top ring is integrally formed on the top of the outer side of the body.
In the above technical scheme, the middle ring and the top ring are polygons, and the radius of the circumscribed circle of the polygons is the same as the radius of the bottom ring.
In the technical scheme, the top of the top ring is also integrally provided with a top circular table, and the radius of the top circular table is larger than that of the body and is coaxially arranged.
The utility model provides a feeding device of nut, includes multiunit feed mechanism, every feed mechanism of group includes nut carrier plate, discharge mechanism and vacuum suction portion respectively, nut carrier plate including slope setting and driven along the step-by-step nut carrier plate of fore-and-aft direction and vibration exciter, nut carrier plate on be provided with the multichannel and extend about and can matchedly with the bottom ring of nut inlay the T type groove that contains wherein, discharge mechanism include with the baffle box of T type groove matching, the sliding table of setting at the baffle box other end, the sliding table with the adjacent side of baffle box be formed with can hold the baffle box wherein, the sliding table driven along fore-and-aft direction reciprocating motion in order to switch between the feed position and the get material position.
In the above technical scheme, the upper surface of the nut carrier plate is formed with a plurality of strip-shaped bosses arranged at intervals, and the bosses are fixedly provided with laths with the width larger than that of the bosses so as to form the T-shaped grooves.
In the above technical scheme, the vacuum suction part comprises a vacuum generator, a nut suction cavity connected with the vacuum generator and used for embedding the top round table therein in a matched manner, and a suction cylinder for driving the nut suction cavity to move up and down.
In the technical scheme, the feeding device comprises six groups of feeding mechanisms, and the vacuum suction part of each group of feeding mechanisms is fixedly connected with the feeding frame respectively.
In the technical scheme, the guide groove is an S-shaped groove, and the sliding table is arranged on the frame through the guide rail sliding block and is driven to be switched by the sliding air cylinder.
In the technical scheme, a lifting handle is fixedly arranged on the nut carrier plate, a lifting baffle corresponding to the discharge end of the T-shaped groove is arranged on the lifting handle, and a stop is arranged at the other end of the T-shaped groove; the nut loading plate further comprises a nut loading plate substrate which is obliquely arranged and driven to step along the front-back direction, the nut loading plate is detachably and fixedly arranged on the nut loading plate substrate and is positioned through the magnet and the pin column, and the vibration exciter is arranged on the nut loading plate substrate.
A control method of the supply device comprises the following steps,
1) Vibrating the vibration exciter, vibrating nuts in the T-shaped groove corresponding to the guide groove into the guide groove, and enabling the foremost nut in the guide groove to enter the embedded groove;
2) After detecting that the nut in the embedding groove is in place, stopping vibrating the vibration exciter, and driving the sliding table to slide to a feeding position;
3) The nut suction cavity falls down to the vacuum generator to act, so as to realize nut suction,
4) The feeding frame transfers the nuts to the designated position, the vacuum generator stops working, and the nuts are released.
The invention has the advantages and beneficial effects that:
the screw cap can be formed by one-step injection molding of materials such as aluminum alloy, and the stable connection with the SMC lining plate is increased by adopting the arrangement of three annular edges on the outer side of the body, the bottom surface area is increased by adopting the design of the bottom annular ring, the screw hole is prevented from being blocked by materials during injection molding, meanwhile, the screw cap is designed to be equal to an outer circle, the screw cap is convenient to be placed in a die hole subsequently, and the accurate positioning is realized.
According to the invention, the cartridge clip type feeding device is adopted, the high capacity of the nut carrier plate is utilized, the vibration downward feeding is realized by utilizing the vibration exciter, the stable feeding one by one is realized by matching the guide chute with the sliding table, the automatic stability is ensured, the nut is grabbed through the vacuum suction part, the problem of high space occupation of the claw and the like is reduced, the action in a small space is realized, and the device has good operability.
Drawings
Fig. 1 is a schematic view of a screw cap suitable for use in an SMC liner of the present invention.
Fig. 2 is a schematic structural view of a nut carrier plate according to the present invention.
Fig. 3 is a schematic structural view of a nut loading plate and a discharging mechanism of the invention.
Fig. 4 is a schematic view of a supply device.
Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.
Detailed Description
In order to make the person skilled in the art better understand the solution of the present invention, the following describes the solution of the present invention with reference to specific embodiments.
Example 1
The nut 3 suitable for the SMC lining plate comprises a cylindrical body 31 with a threaded inner cavity, a bottom ring 32 integrally formed at the open end side of the bottom of the body, a middle ring 33 integrally formed at the middle part of the outer side of the body and arranged at intervals in parallel with the bottom ring, and a top ring 34 integrally formed at the top of the outer side of the body.
Preferably, the middle ring and the top ring are polygons, and the radius of the circumscribed circle of the polygons is the same as the radius of the bottom ring.
The screw cap can be formed by one-time injection molding of materials such as aluminum alloy, adopts the setting of three ring edges in the body outside, has increased the firm type that is connected with the SMC welt, moreover, the design of end ring has increased the bottom surface area, can avoid the material to block up the screw hole when moulding plastics, simultaneously, wait outer round design, be convenient for follow-up place in the mould hole, realized accurate location.
Further, a top circular table 34 is integrally formed at the top of the top ring, and the radius of the top circular table is larger than that of the body and is coaxially arranged. The design of the top round table provides an action point for the subsequent vacuum adsorption, and realizes the automation of supply.
Example 2
The invention also discloses a nut feeding device, which comprises a plurality of groups of feeding mechanisms, wherein each group of feeding mechanism respectively comprises a nut carrying plate 41, a discharging mechanism 42 and a vacuum suction part 43, the nut carrying plate comprises a nut carrying plate 411 which is obliquely arranged and driven to step along the front-back direction and a vibration exciter 412, a plurality of T-shaped grooves 414 which can be matched with the bottom rings of the nuts are embedded in the nut carrying plate, the discharging mechanism comprises a guide groove 421 matched with the T-shaped grooves, a sliding table 422 arranged at the other end of the guide groove, an embedding groove 423 which can accommodate the nuts is formed at the adjacent side of the sliding table and the guide groove, and the sliding table is driven to reciprocate along the front-back direction so as to switch between a material feeding position and a material taking position.
Specifically, the guide chute is an S-shaped chute or an arc track so as to reduce material blocking, and the sliding table is arranged on the frame through a guide rail sliding block and is driven to be switched by a sliding cylinder.
According to the invention, the cartridge clip type feeding device is adopted, the high capacity of the nut carrier plate is utilized, the vibration downward feeding is realized by utilizing the vibration exciter, the stable feeding one by one is realized by matching the guide chute with the sliding table, the automatic stability is ensured, the nut is grabbed through the vacuum suction part, the problem of high space occupation of the claw and the like is reduced, the action in a small space is realized, and the device has good operability.
The vacuum suction part 43 comprises a vacuum generator, a nut suction cavity 431 connected with the vacuum generator and matched with the top round table, and a suction cylinder 432 driving the nut suction cavity to move up and down. The vacuum generator starts working after the top round table of the nut is embedded into the nut suction cavity, so that the suction is realized.
The vacuum suction parts of each group of feeding mechanisms are fixedly connected with the feeding frame respectively, and other parts are correspondingly arranged, so that the assembly is convenient and the realization is simple.
Example 3
For realizing the optimization setting of nut carrier plate, nut carrier plate still includes slope setting and driven along the step-by-step nut carrier plate base plate 413 of fore-and-aft direction, nut carrier plate detachably fixed setting be in nut carrier plate base plate and realize the location through magnet and round pin post, vibration exciter 412 set up nut carrier plate base plate on, nut carrier plate's detachable setting is convenient for change and material load.
The nut carrier plate comprises a nut carrier plate, wherein a plurality of strip-shaped bosses are formed on the upper surface of the nut carrier plate at intervals, and strip plates with the width larger than that of the bosses are fixedly arranged on the bosses to form the T-shaped grooves.
Further, in order to facilitate the movement of the nut carrier plate, a lifting handle 415 is fixedly arranged on the nut carrier plate, a lifting baffle 416 corresponding to the discharge end of the T-shaped groove is arranged on the lifting handle, and a stop is arranged at the other end of the T-shaped groove; namely, the discharge hole of the nut is a loading hole, the nut can be limited in the T-shaped groove by the lifting baffle after loading, the lifting baffle can be lifted after being fixed on the nut loading plate substrate, meanwhile, the T-shaped groove is blocked by the end baffle 417 directly fixedly connected with the frame, the end baffle 417 is arranged on one side of the guide groove and corresponds to the storage area, the T-shaped groove closest to the guide groove after the nut loading plate substrate moves can be separated from the constraint of the lifting baffle, and the nuts in the T-shaped groove can sequentially enter the guide groove.
Example 4
The control method of the feeding device of the invention comprises the following steps,
1) Vibrating the vibration exciter, vibrating nuts in the T-shaped groove corresponding to the guide groove into the guide groove, and enabling the foremost nut in the guide groove to enter the embedded groove;
2) After detecting that the nut in the embedding groove is in place, stopping vibrating the vibration exciter, and driving the sliding table to slide to a feeding position;
3) The nut suction cavity falls down to the vacuum generator to act, so as to realize nut suction,
4) The feeding frame transfers the nuts to the designated position, the vacuum generator stops working, and the nuts are released.
The control method provided by the invention has the advantages that the rhythm is simple, the feedback can be carried out through the sensor in each link, the smooth operation of the whole process is ensured, the quality stability of the product is ensured, the full-automatic operation is realized, the manual participation is reduced, the efficiency is improved, and the personal safety is ensured.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The foregoing has described exemplary embodiments of the invention, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the invention may be made by those skilled in the art without departing from the spirit of the invention.
Claims (7)
1. The utility model provides a feeding device suitable for screw cap of SMC welt, characterized by that, the screw cap include the cylinder body that forms the screw thread inner chamber, the bottom ring of integrated into one piece outside the body bottom open end, the integrated form in the body middle part outside and with the parallel interval arrangement of bottom ring, and the integrated form in the top of body outside the middle ring, top ring and top ring be the polygon, the circumscribed circle radius of polygon the same with bottom ring radius, the top of top ring still integrated into one piece have the top circle platform, top circle platform radius be greater than body radius and coaxial setting, feeding device include multiunit feed mechanism, each group of feeding mechanism comprises a nut carrying plate, a discharging mechanism and a vacuum suction part, wherein the nut carrying plate comprises a nut carrying plate and a vibration exciter which are obliquely arranged and driven to step along the front-rear direction, a plurality of T-shaped grooves which extend left and right and can be matched with bottom rings of nuts are embedded in the nut carrying plate, the discharging mechanism comprises a guide groove matched with the T-shaped grooves, a sliding table is arranged at the other end of the guide groove, the sliding table and the adjacent side of the guide groove are formed with embedding grooves which can be used for accommodating the nuts, and the sliding table is driven to reciprocate along the front-rear direction so as to switch between a feeding position and a material taking position.
2. The feeding device as set forth in claim 1, wherein a plurality of strip-shaped bosses are formed on the upper surface of said nut carrier plate at intervals, and strips having a width larger than that of said bosses are fixedly provided on said bosses to form said T-shaped grooves.
3. The supply device of claim 1, wherein said vacuum suction portion comprises a vacuum generator, a nut suction chamber connected to said vacuum generator and matingly engaging said top circular table therein, and a suction cylinder driving said nut suction chamber to move up and down.
4. The feeder of claim 1, comprising six sets of feeding mechanisms, the vacuum suction portions of each set of feeding mechanisms being fixedly connected to the carriage, respectively.
5. The feeding device as set forth in claim 1, wherein said guide groove is an S-shaped groove, and said slide table is provided on the frame through a guide rail slider and is switched by a slide cylinder drive.
6. The feeding device of claim 1, wherein a lifting handle is fixedly arranged on the nut carrier plate, a lifting baffle corresponding to the discharge end of the T-shaped groove is arranged on the lifting handle, and a stop is arranged at the other end of the T-shaped groove; the nut loading plate further comprises a nut loading plate substrate which is obliquely arranged and driven to step along the front-back direction, the nut loading plate is detachably and fixedly arranged on the nut loading plate substrate and is positioned through the magnet and the pin column, and the vibration exciter is arranged on the nut loading plate substrate.
7. A control method of a supply device according to any one of claims 1 to 6, characterized by comprising the steps of,
1) Vibrating the vibration exciter, vibrating the screw cap in the T-shaped groove corresponding to the guide groove into the guide groove, and enabling the screw cap at the forefront part in the guide groove to enter the embedding groove;
2) After detecting that the nuts in the embedding groove are in place, stopping vibrating the vibration exciter, and driving the sliding table to slide to a feeding position;
3) The nut suction cavity falls down to the vacuum generator to act, so as to realize the suction of the nut,
4) The feeding frame transfers the nuts to the designated position, and the vacuum generator stops working to release the nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133165.0A CN110953235B (en) | 2018-09-27 | 2018-09-27 | Screw cap suitable for SMC lining plate, feeding device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811133165.0A CN110953235B (en) | 2018-09-27 | 2018-09-27 | Screw cap suitable for SMC lining plate, feeding device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110953235A CN110953235A (en) | 2020-04-03 |
| CN110953235B true CN110953235B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811133165.0A Active CN110953235B (en) | 2018-09-27 | 2018-09-27 | Screw cap suitable for SMC lining plate, feeding device and control method |
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| Country | Link |
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| CN (1) | CN110953235B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW391898B (en) * | 1998-10-23 | 2000-06-01 | Jou Ming Jung | Machine design for automatic, continuous forming anti-slipping nut caps |
| KR200414953Y1 (en) * | 2006-01-27 | 2006-04-27 | 한양로보틱스 주식회사 | The array device for insert-nut using hose shooting-type |
| KR20160059736A (en) * | 2014-11-19 | 2016-05-27 | 캄텍주식회사 | An insert nut for an injection molding product |
| CN206054490U (en) * | 2016-08-22 | 2017-03-29 | 浙江丰华标准件制造有限公司 | Embedded locking copper nut |
| CN106646702A (en) * | 2016-11-17 | 2017-05-10 | 天津滨海光热反射技术有限公司 | Solar power generation reflector and preparation method thereof |
| CN206343851U (en) * | 2016-12-22 | 2017-07-21 | 东莞德威铸造制品有限公司 | With leakproof suction screw feeding device |
| CN209180206U (en) * | 2018-09-27 | 2019-07-30 | 天津滨海光热反射技术有限公司 | Nut and feedway suitable for SMC liner plate |
-
2018
- 2018-09-27 CN CN201811133165.0A patent/CN110953235B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW391898B (en) * | 1998-10-23 | 2000-06-01 | Jou Ming Jung | Machine design for automatic, continuous forming anti-slipping nut caps |
| KR200414953Y1 (en) * | 2006-01-27 | 2006-04-27 | 한양로보틱스 주식회사 | The array device for insert-nut using hose shooting-type |
| KR20160059736A (en) * | 2014-11-19 | 2016-05-27 | 캄텍주식회사 | An insert nut for an injection molding product |
| CN206054490U (en) * | 2016-08-22 | 2017-03-29 | 浙江丰华标准件制造有限公司 | Embedded locking copper nut |
| CN106646702A (en) * | 2016-11-17 | 2017-05-10 | 天津滨海光热反射技术有限公司 | Solar power generation reflector and preparation method thereof |
| CN206343851U (en) * | 2016-12-22 | 2017-07-21 | 东莞德威铸造制品有限公司 | With leakproof suction screw feeding device |
| CN209180206U (en) * | 2018-09-27 | 2019-07-30 | 天津滨海光热反射技术有限公司 | Nut and feedway suitable for SMC liner plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110953235A (en) | 2020-04-03 |
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