CN210969637U - Electric drive pull-back type microwave heating foaming forming machine - Google Patents
Electric drive pull-back type microwave heating foaming forming machine Download PDFInfo
- Publication number
- CN210969637U CN210969637U CN201921981641.4U CN201921981641U CN210969637U CN 210969637 U CN210969637 U CN 210969637U CN 201921981641 U CN201921981641 U CN 201921981641U CN 210969637 U CN210969637 U CN 210969637U
- Authority
- CN
- China
- Prior art keywords
- mould
- foaming
- frame
- die
- microwave
- 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
Abstract
The utility model discloses an electricity drives pull-back formula microwave heating foaming make-up machine, which comprises a frame, foaming forming mechanism, the storage bucket, vacuum cooling device, the electric cabinet, driving motor and drive mechanism, foaming forming mechanism is including solid mould, the mould moves, gu the mould framed, move mould framed and foaming material injection pipe, every gu mould framed and the mould framed that moves rather than corresponding form a complete mould cavity together, every mould cavity corresponds an at least foaming material injection pipe, be equipped with at least one microwave shield cover on the solid mould, move and be equipped with the microwave shield lid of at least one cooperation microwave shield cover on the mould, it all adopts high temperature resistant insulating material to make to move the mould framed and solid mould framed, gu the mould is located between mould and the driving motor, driving motor drive mould horizontal migration. The utility model discloses a microwave heating liquid produces steam cooperation foamed plastic and foams, and simple structure is compact, reduces the whole volume of foaming make-up machine, and the energy consumption is less, and is pollution-free, preparation and use cost are low.
Description
Technical Field
The utility model belongs to plastic products processing field especially relates to an electricity drives pull-back formula microwave heating foaming make-up machine.
Background
At present, a foaming forming mechanism of a plastic foaming forming machine generally adopts the way that steam generated by a boiler or a steam generator is fed into a mold cavity and is matched with foaming plastic injected into the mold cavity for foaming, and the boiler or the steam generator generates steam, so that on one hand, the structure is relatively complex, and the integral volume of the foaming forming machine is increased; on the other hand, the boiler needs to use coal or gas, so that the energy consumption is high, the emission can also generate pollution, and the manufacturing and using cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the defect that exists among the above-mentioned prior art and not enough, provide one kind and adopt the microwave heating liquid to produce steam cooperation foaming plastics and foam, simple structure is compact on the one hand, reduces the whole volume of foaming make-up machine, and on the other hand microwave generator only needs to use the electric energy, and the energy consumption is less, and is pollution-free, not only reduces preparation and use cost, moreover energy-concerving and environment-protective electric drive pull-back formula microwave heating foaming make-up machine.
The technical scheme of the utility model: an electrically-driven pull-back type microwave heating foaming forming machine comprises a rack, a foaming forming mechanism, a charging bucket, a vacuum cooling device, an electric cabinet, a driving motor and a transmission mechanism, wherein the foaming forming mechanism is installed on the rack, the charging bucket, the vacuum cooling device, the electric cabinet, the driving motor and the transmission mechanism are connected with the driving motor and the foaming forming mechanism, the foaming forming mechanism comprises a fixed die, a movable die, at least one fixed die frame fixed on the fixed die, at least one movable die frame fixed on the movable die, and at least one foaming material injection pipe installed on the fixed die, each fixed die frame and the movable die frame corresponding to the fixed die frame are combined to form a complete die cavity, each die cavity corresponds to at least one foaming material injection pipe, the foaming material injection pipe is used for injecting foaming plastics and liquid into the die cavity, at least one microwave shielding cover is arranged on the fixed die, at least one microwave shielding cover matched with the microwave, each microwave shielding cover covers the corresponding microwave shielding cover to form a complete microwave shielding cavity, each mold cavity corresponds to one microwave shielding cavity, each microwave shielding cavity is independently connected with a microwave generator, a mold shifting mold frame and a mold fixing mold frame are just combined together when the microwave shielding cover covers the microwave shielding cover, and the mold shifting mold frame and the mold fixing mold frame are both made of high-temperature-resistant insulating materials;
the fixed die is positioned between the moving die and the driving motor, and the driving motor drives the moving die to horizontally move through the transmission mechanism; the transmission mechanism comprises a transmission shaft and a plurality of rocker arm pull rod assemblies which are connected with the transmission shaft and move the die and synchronously act.
The utility model discloses a microwave heating liquid produces steam cooperation foamed plastic and foams, simple structure is compact on the one hand, reduces the whole volume of foaming make-up machine, and on the other hand microwave generator only needs to use the electric energy, and the energy consumption is less, and is pollution-free, not only reduces preparation and use cost, and energy-concerving and environment-protective moreover, every mould cavity corresponds a microwave shielding cavity simultaneously and carries out microwave heating, ensures the product foaming homogeneity in every mould cavity, guarantees product foaming quality.
Preferably, one end of the foaming material injection pipe is provided with an injection head, the injection head sequentially penetrates through the die fixing frame, the microwave shielding cover and the die fixing frame and extends into the die cavity, and the other end of the foaming material injection pipe is provided with an injection port which is respectively connected with the charging basket and the liquid supply tank through pipelines.
The structure ensures the stability and reliability of the foaming plastic and the liquid injected into the cavity of the mould through the foaming material injection pipe.
Preferably, the rocker arm pull rod assembly comprises a rocker arm and a pull rod which are hinged to each other, one end of the rocker arm is rotatably connected to the transmission shaft, and a hinged seat at one end of the pull rod is hinged to the moving die.
The structure enables the driving motor to push or pull the moving die through the push rod assembly to move more stably and reliably.
Preferably, the injection port is arranged obliquely upwards, and the other end of the foaming material injection pipe is also provided with a material gun for driving the foaming plastic and the liquid entering from the injection port into the cavity of the mold; the fixed die frame is fixed on the inner side of the microwave shielding cover through a fixing column, the movable die frame is directly fixed on the inner side of the microwave shielding cover, and a through hole matched with the injection head is formed in the fixed die frame.
The structure ensures the smoothness of the foaming plastic and the liquid injected into the cavity of the mould through the foaming material injection pipe; when the microwave shielding cover is ensured to cover the microwave shielding cover, the mold moving mold frame is well combined with the mold fixing mold frame, and the tightness of the microwave shielding cavity and the mold cavity is ensured.
Preferably, the microwave generator is directly fixed to the microwave shield and emits microwaves into the microwave shield or is connected to the microwave shield through a waveguide and transmits microwaves into the microwave shield.
The structure can make the microwave generator be internally or externally arranged, and meets the requirements of different customers.
Preferably, the frame includes base, top frame, carriage and back seat, gu the mould is vertical to be installed between base and top frame, and is equipped with the perforation of cooperation foaming material injection pipe on the mould admittedly, the storage bucket is installed on the top frame, vacuum cooling device is including installing vacuum pump and vacuum bucket on the base.
The structure ensures that the die fixing, the charging basket and the vacuum cooling device are firmly and reliably installed, and meanwhile, the foaming material injection pipe is convenient to install.
Preferably, the moving die is connected with the rear seat through a guide rod, the driving motor is a servo motor, a first-stage speed reducer and a second-stage speed reducer are arranged between the driving motor and a transmission shaft, the transmission shaft is connected to the first-stage speed reducer, and the driving motor, the first-stage speed reducer and the second-stage speed reducer are installed on the fixed die.
The structure ensures that the moving of the moving die is stable and reliable, thereby ensuring that the matching between the moving die frame and the die fixing die frame is stable and reliable, and ensuring that the driving motor drives the transmission shaft to rotate more stably and reliably.
Preferably, the number of the microwave shielding cavities and the number of the die cavities are 2-5, and each die cavity corresponds to 2-8 foaming material injection pipes.
The structure can design plastic foaming forming machines with different specifications and sizes according to customer requirements on the premise of ensuring the foaming forming efficiency, and the quantity and the position of the foaming material injection pipes can be adjusted according to the specifications and the sizes of the plastic foaming forming machines.
A foam forming method of an electrically-driven pull-back type microwave heating foam forming machine comprises the following steps:
1) the driving motor pulls the moving mold to horizontally move to be close to the fixed mold through the transmission mechanism, so that each microwave shielding cover covers the corresponding microwave shielding cover to form a complete microwave shielding cavity, and at the moment, the moving mold frame and the corresponding fixed mold frame are combined together to form a complete mold cavity;
2) the foaming plastic and the liquid are respectively sent to the injection port through the pipeline to be mixed together and are injected into the cavity of the mold from the foaming material injection pipe through the material gun;
3) starting a microwave generator to emit microwaves into a microwave shielding cavity, allowing the microwaves to penetrate into the mold cavity to heat the foamed plastic and the liquid, evaporating the liquid to form steam to match the foamed plastic for foaming and molding, and then cooling by a vacuum cooling device;
4) after the foaming molding is finished, the driving motor pushes the moving mold to be far away from the fixed mold through the transmission mechanism, so that the moving mold frame and the fixed mold frame are separated, and a product after the foaming molding is taken out.
Preferably, the mold moving frame and the mold fixing frame are both made of plastic high-temperature-resistant insulating materials.
The utility model discloses a microwave heating liquid produces steam cooperation foamed plastic and foams, simple structure is compact on the one hand, reduces the whole volume of foaming make-up machine, and on the other hand microwave generator only needs to use the electric energy, and the energy consumption is less, and is pollution-free, not only reduces preparation and use cost, and energy-concerving and environment-protective moreover, every mould cavity corresponds a microwave shielding cavity simultaneously and carries out microwave heating, ensures the product foaming homogeneity in every mould cavity, guarantees product foaming quality.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the present invention;
in the drawing, 1, a mold fixing frame, 2, a mold moving frame, 3, a microwave generator, 4, a microwave shielding cover, 5, a microwave shielding cover, 6, a mold fixing frame, 7, a mold moving frame, 8, a foaming material injection pipe, 9, an injection head, 10, an injection port, 11, a material gun, 12, a base, 13, a fixing column, 14, a guide rod, 15, a top frame, 16, a support frame, 17, a rear seat, 18, a driving motor, 19, a primary speed reducer, 20, a secondary speed reducer, 21, a transmission shaft, 22, a rocker arm, 23, a pull rod, 24, a hinged seat, 25, a material barrel, 26, a vacuum barrel, 27, a vacuum pump, 28 and an electric cabinet are arranged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1 and 2, an electrically driven pull-back type microwave heating foaming forming machine comprises a frame, a foaming forming mechanism arranged on the frame, a charging basket 25, a vacuum cooling device, an electric cabinet 28, a driving motor 18 and a transmission mechanism connecting the driving motor 18 and the foaming forming mechanism, wherein the foaming forming mechanism comprises a fixed die 1, a movable die 2, two fixed die frames 6 fixed on the fixed die 1, two movable die frames 7 fixed on the movable die 2 and 4 foaming material injection pipes 8 arranged on the fixed die 1, each fixed die frame and the corresponding movable die frame are combined to form a complete die cavity, each die cavity corresponds to 2 foaming material injection pipes 8, the foaming material injection pipes 8 are used for injecting foaming plastics and liquid into the die cavity, two microwave shielding covers 4 are arranged on the fixed die 1, two microwave shielding covers 5 matched with the microwave shielding covers 4 are arranged on the movable die 2, each microwave shielding cover covers the corresponding microwave shielding cover to form a complete microwave shielding cavity, each mold cavity corresponds to one microwave shielding cavity, each microwave shielding cavity is independently connected with the microwave generator 3, and the mold moving mold frame 7 and the mold fixing mold frame 6 are just combined together when the microwave shielding cover 5 covers the microwave shielding cover 4; the fixed die 1 is positioned between the moving die 2 and the driving motor 18, and the driving motor 18 drives the moving die 2 to move horizontally through the transmission mechanism; the transmission mechanism comprises a transmission shaft 21 and four groups of rocker arm pull rod assemblies which are connected with the transmission shaft 21 and the moving die 2 and act synchronously. One end of the foaming material injection pipe 8 is provided with an injection head 9, the injection head 9 sequentially penetrates through the fixed die 1, the microwave shielding cover 4 and the fixed die frame 6 to extend into the die cavity, the other end of the foaming material injection pipe 8 is provided with an injection port 10, and the injection port 10 is respectively connected with the charging basket 25 and the liquid supply tank through pipelines. The push rod assembly comprises two upper push rods 22 and two lower push rods 23 which are hinged together, wherein one of the upper push rods and one of the lower push rods are connected to the transmission shaft 21 in a positive and negative rotating mode, and the other upper push rod and the other lower push rod are hinged to the movable die 2 through a hinge seat 24. The injection opening 10 is arranged obliquely upwards, and the other end of the foaming material injection pipe 8 is also provided with a material gun 11 for driving the foaming plastic and the liquid entering from the injection opening 10 into the cavity of the mold; the fixed mould frame 6 is fixed on the inner side of the microwave shielding cover 4 through a fixed column 13, the movable mould frame 7 is directly fixed on the inner side of the microwave shielding cover 5, and a through hole matched with the injection head 9 is formed in the fixed mould frame 6. The microwave generator 3 is directly fixed to the microwave shield 4 and emits microwaves into the microwave shield 4. The frame includes base 12, top frame 15, carriage 16 and back seat 17, and solid mould 1 is vertical to be installed between base 12 and top frame 15, and is equipped with the perforation of cooperation foaming material filling tube 8 on the solid mould 1, and storage bucket 25 installs on top frame 15, and vacuum cooling device is including installing vacuum pump 27 and vacuum bucket 26 on base 12. The moving die 2 is connected with a rear seat 17 through a guide rod 14, the driving motors 18 are servo motors, the number of the driving motors and the number of the transmission shafts are two, a first-stage speed reducer 19 and a second-stage speed reducer 20 are arranged between each driving motor and the transmission shaft 21, the transmission shafts 21 are connected to the first-stage speed reducer 19, and four groups of rocker arm pull rod assemblies are connected to two ends of the two transmission shafts respectively in a pairwise mode. The driving motor 18, the primary speed reducer 19 and the secondary speed reducer 20 are installed on the fixed die 1.
A foam forming method of an electrically-driven pull-back type microwave heating foam forming machine comprises the following steps:
1) the driving motor pulls the moving mold to horizontally move to be close to the fixed mold through the transmission mechanism, so that each microwave shielding cover covers the corresponding microwave shielding cover to form a complete microwave shielding cavity, and at the moment, the moving mold frame and the corresponding fixed mold frame are combined together to form a complete mold cavity;
2) the foaming plastic and the liquid are respectively sent to the injection port through the pipeline to be mixed together and are injected into the cavity of the mold from the foaming material injection pipe through the material gun;
3) starting a microwave generator to emit microwaves into a microwave shielding cavity, allowing the microwaves to penetrate into the mold cavity to heat the foamed plastic and the liquid, evaporating the liquid to form steam to match the foamed plastic for foaming and molding, and then cooling by a vacuum cooling device;
4) after the foaming molding is finished, the driving motor pushes the mold moving frame to horizontally move through the transmission mechanism to be far away from the fixed mold, so that the mold moving frame and the fixed mold frame are separated, and a product after the foaming molding is taken out.
The mold moving frame 7 and the mold fixing frame 6 are both made of plastic high-temperature-resistant insulating materials.
The rocker arm pull rod assembly of the utility model is a conventional transmission mechanism purchased in the market, so the concrete structure of the rocker arm pull rod assembly is not described in detail.
The vacuum cooling device in the utility model is a conventional vacuum cooling device purchased from the market, so detailed description is not needed.
The utility model discloses a can dispose P L C controller in the automatically controlled case, only need set up the action parameter, action frequency and the action time of parts such as automatic control microwave generator, driving motor.
The invention is mainly used for foaming and molding expandable plastic particles such as EPS, EPP, EPTU and the like.
The utility model discloses well liquid that is used for the foaming adopts clean water usually, and liquid supply tank adopts clean water tank usually, and clean water tank generally is the peripheral hardware, annotates the liquid mouth through the pipe connection, sends into liquid mouth department and foamed plastic together into the mould cavity with the water in the water tank through the water pump.
The utility model discloses a microwave heating liquid produces steam cooperation foamed plastic and foams, simple structure is compact on the one hand, reduces the whole volume of foaming make-up machine, and on the other hand microwave generator only needs to use the electric energy, and the energy consumption is less, and is pollution-free, not only reduces preparation and use cost, and energy-concerving and environment-protective moreover, every mould cavity corresponds a microwave shielding cavity simultaneously and carries out microwave heating, ensures the product foaming homogeneity in every mould cavity, guarantees product foaming quality.
Claims (8)
1. The utility model provides an electricity drives pull-back formula microwave heating foaming make-up machine, includes the frame, installs foaming forming mechanism, storage bucket, vacuum cooling device, electric cabinet, driving motor in the frame and connects driving motor and foaming forming mechanism's drive mechanism, foaming forming mechanism is including solid mould, moving the mould, fix at least one on solid mould die frame and fix at least one on moving the mould and move the mould die frame and install at least one foaming material filling tube on solid mould, its characterized in that: each fixed mold frame and the corresponding movable mold frame are combined to form a complete mold cavity, each mold cavity corresponds to at least one foaming material injection pipe, the foaming material injection pipes are used for injecting foaming plastics and liquid into the mold cavity, the fixed mold is provided with at least one microwave shielding cover, the movable mold is provided with at least one microwave shielding cover matched with the microwave shielding cover, each microwave shielding cover covers the microwave shielding cover corresponding to the microwave shielding cover to form a complete microwave shielding cavity, each mold cavity corresponds to one microwave shielding cavity, each microwave shielding cavity is independently connected with a microwave generator, the movable mold frame and the fixed mold frame are just combined together when the microwave shielding cover covers the microwave shielding cover, and the movable mold frame and the fixed mold frame are both made of high-temperature-resistant insulating materials; the fixed die is positioned between the moving die and the driving motor, and the driving motor drives the moving die to horizontally move through the transmission mechanism; the transmission mechanism comprises a transmission shaft and a plurality of rocker arm pull rod assemblies which are connected with the transmission shaft and move the die and synchronously act.
2. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 1, wherein: and an injection head is arranged at one end of the foaming material injection pipe, the injection head sequentially penetrates through the die fixing frame, the microwave shielding cover and the die fixing frame to extend into the die cavity, and an injection port is arranged at the other end of the foaming material injection pipe and is respectively connected with the charging basket and the liquid supply tank through pipelines.
3. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 2, wherein: the rocker arm pull rod assembly comprises a rocker arm and a pull rod which are hinged with each other, one end of the rocker arm is rotatably connected to the transmission shaft, and a hinged seat at one end of the pull rod is hinged to the moving die.
4. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 2, wherein: the injection opening is arranged obliquely upwards, and the other end of the foaming material injection pipe is also provided with a material gun for driving foaming plastic and liquid entering from the injection opening into the cavity of the mold; the fixed die frame is fixed on the inner side of the microwave shielding cover through a fixing column, the movable die frame is directly fixed on the inner side of the microwave shielding cover, and a through hole matched with the injection head is formed in the fixed die frame.
5. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 1, wherein: the microwave generator is directly fixed on the microwave shielding cover and emits microwaves into the microwave shielding cover or is connected to the microwave shielding cover through a waveguide tube and transmits the microwaves into the microwave shielding cover.
6. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 1, wherein: the frame includes base, top frame, carriage and back seat, gu the mould is vertical to be installed between base and top frame, and is equipped with the perforation of cooperation foaming material injection pipe on the mould admittedly, the storage bucket is installed on the top frame, vacuum cooling device is including installing vacuum pump and vacuum bucket on the base.
7. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 6, wherein: the moving die is connected with the rear seat through the guide rod, the driving motor is a servo motor, a first-stage speed reducer and a second-stage speed reducer are arranged between the driving motor and the transmission shaft, the transmission shaft is connected to the first-stage speed reducer, and the driving motor, the first-stage speed reducer and the second-stage speed reducer are installed on the fixed die.
8. The electric drive pull-back type microwave heating foaming molding machine as claimed in claim 1, wherein: the number of the microwave shielding cavities and the number of the die cavities are 2-5, and each die cavity corresponds to 2-8 foaming material injection pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921981641.4U CN210969637U (en) | 2019-11-18 | 2019-11-18 | Electric drive pull-back type microwave heating foaming forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921981641.4U CN210969637U (en) | 2019-11-18 | 2019-11-18 | Electric drive pull-back type microwave heating foaming forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210969637U true CN210969637U (en) | 2020-07-10 |
Family
ID=71461240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921981641.4U Active CN210969637U (en) | 2019-11-18 | 2019-11-18 | Electric drive pull-back type microwave heating foaming forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210969637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810019A (en) * | 2019-11-18 | 2021-05-18 | 杭州高福机械制造有限公司 | Electric drive pull-back type microwave heating foaming forming machine and foaming forming method thereof |
-
2019
- 2019-11-18 CN CN201921981641.4U patent/CN210969637U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112810019A (en) * | 2019-11-18 | 2021-05-18 | 杭州高福机械制造有限公司 | Electric drive pull-back type microwave heating foaming forming machine and foaming forming method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210969637U (en) | Electric drive pull-back type microwave heating foaming forming machine | |
| CN206579056U (en) | A kind of plastics water heating pipe fittings produce injection moulding apparatus | |
| CN213860335U (en) | Hydraulic drive pull-back type microwave heating foaming forming machine | |
| CN210969636U (en) | Electric drive forward pushing type microwave heating foaming forming machine | |
| CN114102967B (en) | Rotary double-cavity forming equipment for injection molding machine | |
| CN204712484U (en) | Ring-shaped rubber upper integral polyurethane sole injected current waterline | |
| CN202097886U (en) | Sponge foaming mold frame | |
| CN112810019A (en) | Electric drive pull-back type microwave heating foaming forming machine and foaming forming method thereof | |
| CN112810017A (en) | Electric-drive forward-push type microwave heating foaming forming machine and foaming forming method thereof | |
| CN210525668U (en) | Intelligence-developing toy processing injection molding device | |
| CN110883171B (en) | Aluminum alloy creep aging forming die equipment | |
| CN210875315U (en) | Polymer hydrolysis unit is used in production of terpene resin | |
| CN112810014A (en) | Hydraulic drive pull-back type microwave heating foaming forming machine and foaming forming method thereof | |
| CN112810016A (en) | Hydraulic drive forward-push type microwave heating foaming forming machine and foaming forming method thereof | |
| CN103231473B (en) | Ejector mechanism of single-trip foaming special machine of refrigerator and control method of ejector mechanism | |
| CN214163817U (en) | Injection mold is used in working of plastics production | |
| CN111790673B (en) | Cleaning mechanism for internal parts of diesel engine generator set | |
| CN209699696U (en) | A kind of electric heating baking oven and rotational molding machine | |
| CN210705723U (en) | High-pressure extrusion mechanism of injection molding machine | |
| CN220534755U (en) | A high-efficient foaming make-up machine for EPS heated board | |
| CN210211096U (en) | Novel foam molding equipment with backflow induction device | |
| CN206011565U (en) | Foamed pot | |
| CN215791335U (en) | Full-automatic injection molding mechanism | |
| CN104890271A (en) | Annular rubber polyurethane upper-carried sole injection production line and processing method thereof | |
| CN215623070U (en) | Double-end filling device with water conservancy diversion subassembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |