CN110370551A - Mold is used in a kind of production of mechanical fitting - Google Patents

Mold is used in a kind of production of mechanical fitting Download PDF

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Publication number
CN110370551A
CN110370551A CN201910744188.3A CN201910744188A CN110370551A CN 110370551 A CN110370551 A CN 110370551A CN 201910744188 A CN201910744188 A CN 201910744188A CN 110370551 A CN110370551 A CN 110370551A
Authority
CN
China
Prior art keywords
lower die
cold water
water storage
storage cistern
outlet pipe
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.)
Pending
Application number
CN201910744188.3A
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Chinese (zh)
Inventor
王勇俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JINJIANG ZHANHUI MOULD Co.,Ltd.
Original Assignee
王勇俊
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 王勇俊 filed Critical 王勇俊
Priority to CN201910744188.3A priority Critical patent/CN110370551A/en
Publication of CN110370551A publication Critical patent/CN110370551A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • B29C45/2606Guiding or centering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • B29C45/7312Construction of heating or cooling fluid flow channels

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of mechanical fitting production molds, belong to technology of die manufacturing field, including lower die and upper mold, the upper mold is located at the top of lower die, the lower die is equipped with annular chamber and circular cavity, the annular chamber is connected to circular cavity, annular chamber is set to the top of circular cavity, the top two sides of the annular chamber are separately installed with water inlet pipe and outlet pipe, the lower section of the lower die is equipped with cold water storage cistern and collecting board, connecting tube is equipped between the cold water storage cistern and collecting board, the bottom of the lower die is equipped with isocon, outlet pipe is connect far from one end of lower die with isocon, the bottom of isocon offers multiple discharge orifices, the bottom of discharge orifice is equipped with outlet pipe, outlet pipe is arranged right below conduction stick;The present invention realizes the molding of mold, while refrigerating function is arranged to mold, accelerates formed product, improves production efficiency, and cooling cost is low, while having energy-efficient effect, and design is rationally, easy to spread.

Description

Mold is used in a kind of production of mechanical fitting
Technical field
The invention belongs to technology of die manufacturing fields, and in particular to mold is used in a kind of production of mechanical fitting.
Background technique
Mould industry is produced to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain institute Need the various moulds and tool of product.In brief, mold is the tool for making formed article, and this tool is by various zero Part is constituted, and different molds is made of different parts.It mainly realizes object by the change of physical state of the formed material The processing of product shape is known as the title of " mother of industry ".In the production of mechanical fitting injection mold, mold needs to wait when forming It is cooled and shaped, the time is longer, causes production efficiency lower, and existing cooling cost is higher, and it is raw that therefore, it is necessary to a kind of mechanical fittings Production solves problem above with mold.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of mechanical fitting production mold Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of mechanical fitting production mold, including lower die And upper mold, the upper mold are located at the top of lower die, the lower die is equipped with annular chamber and circular cavity, the annular chamber and circular cavity Connection, annular chamber are set to the top of circular cavity, and the top two sides of the annular chamber are separately installed with water inlet pipe and outlet pipe, institute The lower section for stating lower die is equipped with cold water storage cistern and collecting board, and connecting tube, the bottom of the lower die are equipped between the cold water storage cistern and collecting board Portion is equipped with isocon, and outlet pipe is connect far from one end of lower die with isocon, and the bottom of isocon offers multiple discharge orifices, The bottom of discharge orifice is equipped with outlet pipe, and outlet pipe is arranged right below conduction stick, and the bottom of the isocon is equipped with connecting rod, even The bottom of bar is connect with conduction stick, and the side of the conduction stick is equipped with driver plate, is rotatably equipped with flabellum on driver plate, described cold Cold water conveying mechanism is equipped in water tank, cold water conveying mechanism is connect with water inlet pipe, and the cold water storage cistern is equipped with driving motor, driving The output shaft of motor is sequentially connected with cold water conveying mechanism and flabellum respectively.
Preferably, the cold water conveying mechanism includes the transport tube being set in cold water storage cistern, and the top of transport tube is sealing Structure, the bottom of transport tube are equipped with opening, are rotatably equipped with conveying screw rod, the one end of water inlet pipe far from lower die in the transport tube It is connect with the top side of transport tube, interval is equipped between the bottom of transport tube and the bottom interior wall of cold water storage cistern.
Preferably, vertical bar is rotatably equipped at the top of the transport tube, the top of vertical bar and the lower rotation of lower die connect, The bottom interior wall of the cold water storage cistern is rotatably equipped with shaft, and the top of shaft is fixedly connected with the bottom of conveying screw rod.
Preferably, it is rotatably equipped with drive rod on the driver plate, is sheathed on belt pulley on drive rod and vertical bar, two Belt is equipped between belt pulley, the output shaft of the driving motor and the bottom driving of drive rod connect.
Preferably, it is rotatably equipped with horizontal axis on the driver plate, horizontally disposed turn is rotatably equipped on the driver plate Lever, the flabellum are installed on one end of rotating bar, and the both ends of the horizontal axis are mounted on first bevel gear, in the rotating bar Fixing sleeve is set to second bevel gear, and fixing sleeve is equipped with third hand tap gear on the drive rod, and two first bevel gears are respectively with the Two bevel gears and third hand tap gear engagement.
Preferably, it is provided with pillar at the top of the lower die, transverse slat is installed at the top of the pillar, is slided on pillar Dynamic to be equipped with guide plate, the upper mold is installed on the bottom of guide plate, and cylinder, the piston of the cylinder are equipped on the transverse slat The connection of the top of bar and guide plate.
Preferably, collecting tank is offered at the top of the collecting board, one end of driver plate is fixedly connected with cold water storage cistern, transmission Plate is located at the top of collecting board, and rod piece, connecting tube one end and collecting tank far from cold water storage cistern are equipped between driver plate and collecting board Bottom interior wall connection.
Preferably, the lower die is made of irony material, and the lower section of the lower die is equipped with pedestal, and cold water storage cistern is installed on pedestal On, load-bearing pillar is set between pedestal and the bottom of lower die, support rod is equipped between pedestal and collecting board.
Compared with prior art, the beneficial effects of the present invention are:
1, it drives guide plate to go up and down to obtain upper mold lifting by cylinder, realizes that upper mold carries out mold molding in conjunction with lower die, It is slidably connected on pillar by guide plate, guarantees the combination accuracy of molding upper mold and lower die.
2, drive drive rod rotation that vertical bar is rotated by driving motor, vertical bar drives conveying screw rod turning handle cold water defeated It is sent into annular chamber and circular cavity, accelerates product and be cooled and shaped, improve shaping efficiency, improve productivity.
3, by the way that hot water is carried out to be split into more threads, heat dissipation is blowed to thread in the cooperation rotation blowing of flabellum 14, So that hot water cooling down is flowed back on cold water storage cistern 11 by connecting tube 27, realize that the re-using of cooling water, saving are cooled to This.
4, it is carried out while realizing conveying function and cooling function by driving motor, saves the energy of driving consumption.
The present invention realizes the molding of mold, while refrigerating function is arranged to mold, accelerates formed product, improves production effect Rate, cooling cost is low, while having energy-efficient effect, and design is rationally, easy to spread.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the schematic cross-sectional view of cold water storage cistern;
Fig. 3 is structure sectional view at A in Fig. 1;
Fig. 4 is the plan structure cross-sectional view of driver plate;
Fig. 5 is the plan structure cross-sectional view of annular chamber;
Fig. 6 is the sectional structure cross-sectional view of collecting board.
In figure: 1, lower die;2, pillar;3, transverse slat;4 guide plates,;5, upper mold;6, cylinder;7 annular chambers,;8, circular cavity;9, Water inlet pipe;10, outlet pipe;11, cold water storage cistern;12, collecting board;13, driver plate;14, flabellum;15, driving motor;16, isocon; 17, discharge orifice;18, outlet pipe;19, connecting rod;20, conduction stick;21, transport tube;22, conveying screw rod;23, vertical bar;24, horizontal axis; 25, rotating bar;26, drive rod;27, connecting tube.
Specific embodiment
Below with reference to embodiment, the present invention will be further described.
The following examples are intended to illustrate the invention, but cannot be used to limit the scope of the invention.Item in embodiment Part can be adjusted according to actual conditions are further, under concept thereof of the invention all to method simple modifications of the invention Belong to the scope of protection of present invention.
Please referring to Fig. 1-6, the present invention provides a kind of mechanical fitting production mold, including lower die 1 and upper mold 5, and upper mold 5 In the top of lower die 1, lower die 1 is equipped with annular chamber 7 and circular cavity 8, and annular chamber 7 is connected to circular cavity 8, and annular chamber 7 is set to The top of circular cavity 8, the top two sides of annular chamber 7 are separately installed with water inlet pipe 9 and outlet pipe 10, and the lower section of lower die 1 is equipped with cold Water tank 11 and collecting board 12 are equipped with connecting tube 27 between cold water storage cistern 11 and collecting board 12, the bottom of lower die 1 is equipped with isocon 16, the one end of outlet pipe 10 far from lower die 1 is connect with isocon 16, and the bottom of isocon 16 offers multiple discharge orifices 17, stream The bottom in water hole 17 is equipped with outlet pipe 18, and outlet pipe 18 is arranged right below conduction stick 20, and the bottom of isocon 16, which is equipped with, to be connected The bottom of bar 19, connecting rod 19 is connect with conduction stick 20, and the side of conduction stick 20 is equipped with driver plate 13, is rotatablely installed on driver plate 13 There is flabellum 14, is equipped with cold water conveying mechanism in cold water storage cistern 11, cold water conveying mechanism is connect with water inlet pipe 9, and cold water storage cistern 11 is equipped with Driving motor 15, the output shaft of driving motor 15 are sequentially connected with cold water conveying mechanism and flabellum 14 respectively.
In above scheme, cylinder 6 drives the lifting of guide plate 4 to obtain the lifting of upper mold 5, realizes that upper mold 5 is combined progress with lower die 1 Mold molding, is slidably connected on pillar 2 by guide plate 4, guarantees the combination accuracy of molding upper mold 5 and lower die 1;Pass through To cold water is injected in cold water storage cistern 11, cold water is entered in transport tube 21 by the bottom opening of transport tube 21, passes through driving motor 15 Drive rod 26 is driven to rotate so that vertical bar 23 rotates, conveying screw rod 22 is driven to rotate for vertical bar 23 so that conveying screw rod 22 is transport tube Water conveying in 21 enters in water inlet pipe 9 up, and then cold water enters in annular chamber 7 and circular cavity 8, and lower die 1 is by ferrous material It is made, there is good heating conduction, the water in annular chamber 7 and circular cavity 8 absorbs the heat in lower die 1, so that product is cooling Molding improves shaping efficiency, improves productivity;Entered in isocon 16 by the water that suction hand heat is discharged in outlet pipe 10, is passed through Discharge orifice 17 and outlet pipe 18 flow on conduction stick 20, conduction stick 20 be it is multiple, hot water is carried out to be split into more threads, by drawing Stream stick 20 drainage falls in the collecting tank on 12, in water flow when being flowed on conduction stick 20, flabellum 14 rotation blowing to thread into Row blowing heat dissipation realizes the re-using of cooling water so that hot water cooling down is flowed back on cold water storage cistern 11 by connecting tube 27, Save cooling cost;The operation of the rotation realization cold water conveying mechanism of drive rod 26, while drive rod are driven by driving motor 15 26 drive the rotation of horizontal axis 24 so that rotating bar 25, which rotates, provides power for the rotation of flabellum 14.
Specifically, cold water conveying mechanism includes the transport tube 21 being set in cold water storage cistern 11, the top of transport tube 21 is close Seal structure, the bottom of transport tube 21 are equipped with opening, are rotatably equipped with conveying screw rod 22 in transport tube 21, water inlet pipe 9 is far from lower die 1 One end connect with the top side of transport tube 21, between being equipped between the bottom of transport tube 21 and the bottom interior wall of cold water storage cistern 11 Every conveying mechanism is used for the conveying of cooling water, accelerates to be cooled and shaped.
Specifically, the top of transport tube 21 is rotatably equipped with vertical bar 23, the top of vertical bar 23 and the lower rotation of lower die 1 connect It connects, the bottom interior wall of cold water storage cistern 11 is rotatably equipped with shaft, and the top of shaft is fixedly connected with the bottom of conveying screw rod 22, realizes Rotational installation of the conveying screw rod 22 in transport tube 21, conveying screw rod 22 are not contacted with the inner wall of transport tube 21.
Specifically, being rotatably equipped with drive rod 26 on driver plate 13, it is sheathed on belt pulley on drive rod 26 and vertical bar 23, Belt is equipped between two belt pulleys, the output shaft of driving motor 15 is connect with the bottom driving of drive rod 26, to realize drive The transmission connection of dynamic motor 15 and conveying screw rod 22.
Specifically, being rotatably equipped with horizontal axis 24 on driver plate 13, horizontally disposed rotation is rotatably equipped on driver plate 13 Bar 25, flabellum 14 are installed on one end of rotating bar 25, and the both ends of horizontal axis 24 are mounted on first bevel gear, fix in rotating bar 25 It is sheathed on second bevel gear, fixing sleeve is equipped with third hand tap gear on drive rod 26, and two first bevel gears bore tooth with second respectively Wheel and third hand tap gear engagement, realizing driving motor can drive flabellum 14 to be rotated, as long as a driving equipment Realize multiple functions.
Specifically, the top of lower die 1 is provided with pillar 2, the top of pillar 2 is equipped with transverse slat 3, is slidably installed on pillar 2 There is guide plate 4, upper mold 5 is installed on the bottom of guide plate 4, and cylinder 6, the piston rod and guide plate 4 of cylinder 6 are equipped on transverse slat 3 Top connection, realize the molding of mold.
Specifically, the top of collecting board 12 offers collecting tank, one end of driver plate 13 is fixedly connected with cold water storage cistern 11, is passed Movable plate 13 is located at the top of collecting board 12, rod piece is equipped between driver plate 13 and collecting board 12, connecting tube 27 is far from cold water storage cistern 11 One end and the bottom interior wall of collecting tank connect, rod piece is to guarantee the installation of driver plate 13 for being supported to driver plate 13 Stablize.
Specifically, lower die 1 is made of irony material, the lower section of lower die 1 is equipped with pedestal, and cold water storage cistern 11 is mounted on the base, Load-bearing pillar is set between pedestal and the bottom of lower die 1, support rod is equipped between pedestal and collecting board 12, ferrous material is convenient for leading Heat, load-bearing pillar are used to support lower die 1.
It should be understood that being equipped with controller on support column 2, controller is AT89C51 type controller, controller Output end is connect with driving motor 15, cylinder 6, and driving motor 15 is Y-160M type driving motor, and cylinder 6 is CDZ1B10-45-A Type cylinder.
The working principle of the invention and process for using: it drives the lifting of guide plate 4 to obtain upper mold 5 by cylinder 6 and goes up and down, realize Upper mold 5 is combined with lower die 1 carries out mold molding, is slidably connected on pillar 2 by guide plate 4, guarantees molding upper mold 5 under The combination accuracy of mould 1;By the way that cold water is injected in cold water storage cistern 11, cold water enters transport tube by the bottom opening of transport tube 21 In 21, drive rod 26 is driven to rotate by driving motor 15 so that vertical bar 23 rotates, vertical bar 23 drives the rotation of conveying screw rod 22 to make It obtains conveying screw rod 22 to enter in water inlet pipe 9 the water conveying in transport tube 21 up, then cold water enters annular chamber 7 and circular cavity In 8, lower die 1 is made of ferrous material, has good heating conduction, and the water in annular chamber 7 and circular cavity 8 absorbs in lower die 1 Heat so that product be cooled and shaped, improve shaping efficiency, improve productivity;The water for inhaling hand heat is discharged by outlet pipe 10 Into in isocon 16, flowed on conduction stick 20 by discharge orifice 17 and outlet pipe 18, conduction stick 20 be it is multiple, hot water is carried out More threads are split into, are fallen in the collecting tank on 12 by the drainage of conduction stick 20, in water flow when being flowed on conduction stick 20, flabellum Heat dissipation is blowed to thread in 14 rotation blowings, so that hot water cooling down is flowed back on cold water storage cistern 11 by connecting tube 27, it is real The re-using of existing cooling water, saves cooling cost;The rotation of drive rod 26 is driven to realize cold water conveyer by driving motor 15 The operation of structure, at the same drive rod 26 drive horizontal axis 24 to rotate so that the rotation that rotating bar 25 rotates as flabellum 14 provide it is dynamic Power, it is only necessary to which a driving mechanism realizes that conveying function is carried out with while cooling function, saves the energy of driving consumption.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (8)

1. a kind of mechanical fitting production uses mold, including lower die (1) and upper mold (5), the upper mold (5) to be located at the upper of lower die (1) Side, it is characterised in that: the lower die (1) is equipped with annular chamber (7) and circular cavity (8), the annular chamber (7) and circular cavity (8) Connection, annular chamber (7) are set to the top of circular cavity (8), and the top two sides of the annular chamber (7) are separately installed with water inlet pipe (9) and outlet pipe (10), the lower section of the lower die (1) is equipped with cold water storage cistern (11) and collecting board (12), the cold water storage cistern (11) and Connecting tube (27) are equipped between collecting board (12), the bottom of the lower die (1) is equipped with isocon (16), and outlet pipe (10) is separate One end of lower die (1) is connect with isocon (16), and the bottom of isocon (16) offers multiple discharge orifices (17), discharge orifice (17) Bottom be equipped with outlet pipe (18), outlet pipe (18) is arranged right below conduction stick (20), the bottom of the isocon (16) Equipped with connecting rod (19), the bottom of connecting rod (19) is connect with conduction stick (20), and the side of the conduction stick (20) is equipped with driver plate (13), it is rotatably equipped with flabellum (14) on driver plate (13), cold water conveying mechanism, cold water conveying is equipped in the cold water storage cistern (11) Mechanism is connect with water inlet pipe (9), and the cold water storage cistern (11) is equipped with driving motor (15), and the output shaft of driving motor (15) is distinguished It is sequentially connected with cold water conveying mechanism and flabellum (14).
2. a kind of mechanical fitting production mold according to claim 1, it is characterised in that: the cold water conveying mechanism packet The transport tube (21) being set in cold water storage cistern (11) is included, the top of transport tube (21) is sealing structure, the bottom of transport tube (21) Is rotatably equipped with conveying screw rod (22) equipped with opening, in the transport tube (21), the one end of water inlet pipe (9) far from lower die (1) with The top side of transport tube (21) connects, and interval is equipped between the bottom of transport tube (21) and the bottom interior wall of cold water storage cistern (11).
3. a kind of mechanical fitting production mold according to claim 2, it is characterised in that: the top of the transport tube (21) Portion is rotatably equipped with vertical bar (23), and the top of vertical bar (23) is connect with the lower rotation of lower die (1), the bottom of the cold water storage cistern (11) Portion's inner wall is rotatably equipped with shaft, and the top of shaft is fixedly connected with the bottom of conveying screw rod (22).
4. a kind of mechanical fitting production mold according to claim 3, it is characterised in that: turn on the driver plate (13) It is dynamic to be equipped with drive rod (26), it is sheathed on belt pulley on drive rod (26) and vertical bar (23), is equipped with skin between two belt pulleys The output shaft of band, the driving motor (15) is connect with the bottom driving of drive rod (26).
5. a kind of mechanical fitting production mold according to claim 1, it is characterised in that: turn on the driver plate (13) It is dynamic to be equipped with horizontal axis (24), it is rotatably equipped with horizontally disposed rotating bar (25) on the driver plate (13), the flabellum (14) It is installed on one end of rotating bar (25), the both ends of the horizontal axis (24) are mounted on first bevel gear, on the rotating bar (25) Fixing sleeve is set to second bevel gear, and fixing sleeve is equipped with third hand tap gear, two first bevel gear difference on the drive rod (26) It is engaged with second bevel gear and third hand tap gear.
6. a kind of mechanical fitting production mold according to claim 1, it is characterised in that: the lower die (1) Top is provided with pillar (2), is equipped with transverse slat (3) at the top of the pillar (2), pillar is slidably fitted with guide plate on (2) (4), the upper mold (5) is installed on the bottom of guide plate (4), is equipped with cylinder (6) on the transverse slat (3), the cylinder (6) Piston rod is connect with the top of guide plate (4).
7. a kind of mechanical fitting production mold according to claim 1, it is characterised in that: the top of the collecting board (12) Portion offers collecting tank, and one end of driver plate (13) is fixedly connected with cold water storage cistern (11), and driver plate (13) is located at collecting board (12) Top, between driver plate (13) and collecting board (12) be equipped with rod piece, connecting tube (27) far from cold water storage cistern (11) one end and receipts Collect the bottom interior wall connection of slot.
8. a kind of mechanical fitting production mold according to claim 1, it is characterised in that: the lower die (1) is by irony Material is made, and the lower section of the lower die (1) is equipped with pedestal, and cold water storage cistern (11) is mounted on the base, the bottom of pedestal and lower die (1) Between load-bearing pillar is set, between pedestal and collecting board (12) be equipped with support rod.
CN201910744188.3A 2019-08-13 2019-08-13 Mold is used in a kind of production of mechanical fitting Pending CN110370551A (en)

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CN201910744188.3A CN110370551A (en) 2019-08-13 2019-08-13 Mold is used in a kind of production of mechanical fitting

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Application Number Priority Date Filing Date Title
CN201910744188.3A CN110370551A (en) 2019-08-13 2019-08-13 Mold is used in a kind of production of mechanical fitting

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CN110370551A true CN110370551A (en) 2019-10-25

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CN110900943A (en) * 2019-12-29 2020-03-24 苏州盖锜机械设备有限公司 Injection mold device for radiating and air guiding outer cover for semiconductor equipment
CN112496298A (en) * 2020-10-30 2021-03-16 郝杰 Quick fashioned metal anti-vibration engine precision parts mould die-casting device
CN114654674A (en) * 2022-04-05 2022-06-24 东台迈盛智能科技有限公司 Aerogenerator blade mould of built-in rapid cooling mechanism
CN114951632A (en) * 2022-04-25 2022-08-30 江西耐华环保科技有限公司 Platinum metal product production and processing device
CN114951632B (en) * 2022-04-25 2024-03-15 江西耐华环保科技有限公司 Platinum metal product production processingequipment

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Application publication date: 20191025