CN110919998A - Injection molding equipment capable of automatically closing mold and vibrating by using gravity of plastic - Google Patents
Injection molding equipment capable of automatically closing mold and vibrating by using gravity of plastic Download PDFInfo
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- CN110919998A CN110919998A CN201911272071.6A CN201911272071A CN110919998A CN 110919998 A CN110919998 A CN 110919998A CN 201911272071 A CN201911272071 A CN 201911272071A CN 110919998 A CN110919998 A CN 110919998A
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- fixedly connected
- outer side
- movably connected
- gravity
- mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1787—Mould parts driven by pressure of injected material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1798—Using spring tension to drive movable machine parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of plastic products, and discloses an injection molding device for automatically closing a mold and vibrating by using the gravity of plastic, which comprises an outer frame, wherein the top of the outer frame is movably connected with a placing plate; the mould moves down and makes the second kelly keep away from first kelly, first kelly card is between the ratchet of ratchet, arouse carousel and gear to rotate along with the ratchet, utilize subsequent compound die and the vibrations of the action of gravity automatic start of mould, increase the linkage between the structure, it is more convenient to operate, the gear moves down when rotating and arouses the apron to rotate and is close to the mould, it places to present the level, carry out the compound die to the mould, automatically, carry out the compound die to the mould, liberation both hands, it is more convenient to operate, through the carousel, place under the combined action of board and mould, the carousel rotates to make and places the board and reciprocate, arouse the mould to reciprocate and take place vibrations, with material maldistribution in the mould, there is the cavity in making the finished product.
Description
Technical Field
The invention relates to the technical field of plastic products, in particular to an injection molding device which automatically closes a mold and vibrates by using the gravity of plastics.
Background
The plastic is a synthetic polymer material with plasticity, and the plastic products are articles for daily use and industrial products which are processed by taking the plastic as a main raw material.
The production process of the plastic product comprises blank, forming, machining, combination, decoration and assembly, wherein the forming is a key link of the plastic processing, the forming is to make various forms of plastics into products with required shapes, common processing methods comprise extrusion, injection molding, calendering, blow molding and thermal forming, wherein the injection molding is the most basic molding method, the injection molding is to inject molten plastics into a plastic product mold by utilizing pressure, and cooling and molding are carried out, at present, the plastic product needs a worker to manually mold and demold in the injection molding process, the operation is more complicated, in the mold closing process, the upper film and the lower film cannot be perfectly attached, the condition of upper film deviation is easy to occur, the product quality is influenced, in the injection molding process, the plastics cannot be fully distributed in the mold due to the shape of the mold, and the surface of the plastic product is easy to dent, the quality of the plastic product is affected, and in the process of pouring the molten plastic into the mold, air is mixed into the solution to generate air bubbles, so that the quality of the plastic product is greatly reduced.
Aiming at the defects of the prior art, the invention provides the injection molding equipment for automatically closing and vibrating by using the gravity of plastics, which has the advantages of automatic closing vibration and convenience in operation, solves the problems of inconvenience in operation and poor quality of plastic products, automatically closes the mold, liberates two hands, is more convenient to operate, enables the mold to move up and down to vibrate, avoids uneven distribution of materials in the mold, enables a cavity to exist in a finished product, and can also avoid the influence of bubbles in the product on the quality of the product.
Disclosure of Invention
Technical scheme (I)
In order to realize the purposes of automatic die assembly vibration and convenient operation, the invention provides the following technical scheme: utilize the gravity of plastics to carry out automatic compound die and the injection moulding equipment of vibrations include the frame, place board, mould, flange, commentaries on classics piece, kicking block, carousel, ratchet, first kelly, second kelly, apron, projection, first tooth piece, second tooth piece, carriage release lever, gear.
Wherein:
the position and connection relationship among the structures are as follows:
an injection molding device capable of automatically closing and vibrating by using the gravity of plastics comprises an outer frame, wherein the outer frame is in a mountain shape, the bottom of the outer frame is fixedly connected with an inverted convex pipe, the inside of the convex pipe is fixedly connected with a clamping pipe, the top of the outer frame is movably connected with a placing plate, the bottom of the placing plate is movably connected with a spring, the spring is positioned inside branch pipes on two sides of the outer frame, the bottom of the spring is movably connected with the outer frame, the upper part of the placing plate is movably connected with a mold, the inside of the outer frame is movably connected with two convex discs, the two convex discs are same in size, the convex discs are in a water droplet shape, the outer sides of the convex discs are fixedly connected with a rotating block, the rotating block is positioned between the two convex discs, the rotating block is movably connected with a long shaft end of the convex discs, the top of the rotating block is movably connected with a support rod, the top of, the inside swing joint of dead slot has the connecting rod, and the outside swing joint of connecting rod has the spring, and the top fixedly connected with baffle of spring, the top swing joint of connecting rod are in the kelly, and the outside swing joint of frame has the carousel, the outside fixedly connected with connecting rod of carousel, one side and the right side flange fixed connection that the carousel was kept away from to the connecting rod, and the outside swing joint of carousel has first kelly.
The outer side of the rotary disc is movably connected with a ratchet wheel, the outer side of the rotary disc is movably connected with a first clamping rod, the outer side of the first clamping rod is movably connected with a spring plate, the size of the first clamping rod is matched with the size of the ratchet wheel, the outer side of the rotary disc is movably connected with a second clamping rod, the second clamping rod is in an L shape, the surface of a vertical rod of the second clamping rod is fixedly connected with a clamping block, the top of the vertical rod is fixedly connected with a pull rope, the top of the pull rope is fixedly connected with a push rod, the push rod is fixedly connected with a mould, the outer side of the mould is movably connected with a cover plate, the bottom of the cover plate is movably connected with a roller wheel, the outer side of the roller wheel is fixedly connected with a convex column, one side of the convex column, which is close to the roller wheel, is gradually upward curved surface, the outer side of the cover plate is fixedly connected with a first tooth block, one side and the carriage release lever swing joint of bull stick are kept away from to the connecting rod, the outside swing joint of first tooth piece has the second tooth piece, the outside swing joint of second tooth piece has the carriage release lever, the outside fixedly connected with stopper of carriage release lever, the fixed surface of carriage release lever is connected with the sawtooth, the size looks adaptation of its size and gear, the outside fixedly connected with gear of carriage release lever.
(II) advantageous effects
Compared with the prior art, the invention provides the injection molding equipment which utilizes the gravity of plastics to automatically mold and vibrate, and the injection molding equipment has the following beneficial effects:
1. under the combined action of the mold, the first clamping rod, the second clamping rod, the ratchet wheel, the rotary table and the gear, the mold moves downwards to enable the second clamping rod to be far away from the first clamping rod, the first clamping rod is clamped between the ratchet teeth of the ratchet wheel, the rotary table and the gear are caused to rotate along with the ratchet wheel, the subsequent mold closing and vibration are automatically started under the action of gravity of the mold, linkage between structures is increased, and operation is more convenient.
2. Under the combined action of the gear, the moving rod, the cover plate and the mold, the moving rod moves downwards when the gear rotates to cause the cover plate to rotate to be close to the mold, the cover plate is horizontally placed, the mold is closed, the mold is automatically closed, both hands are liberated, and the operation is more convenient.
3. Under the combined action through the carousel, place board and mould, the carousel rotates to make and places the board and reciprocate, arouses the mould to reciprocate and take place vibrations to material maldistribution in the mould makes has the cavity in the finished product, also can avoid the inside of product to contain the bubble, influences the quality of product.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view showing the connection relationship between the second clamping rod, the rotary plate and the ratchet wheel of the present invention, wherein each structure is in an initial state and does not change its position;
FIG. 4 is a schematic view of the second clamping bar, the rotary plate and the ratchet wheel of the present invention, wherein the second clamping bar rotates in a reverse direction to cause the rotary plate to rotate along with the ratchet wheel;
FIG. 5 is a schematic view of the connection between the cover plate and the second rack of the present invention;
FIG. 6 is a schematic view of the connection between the cover plate and the movable rod of the present invention, wherein the structures are in the initial state and are not changed in position;
FIG. 7 is a schematic diagram of the movement traces of the cover plate and the moving rod according to the present invention, wherein the moving rod moves downward to cause the cover plate to rotate clockwise;
FIG. 8 is a schematic view of the arrangement of the present invention showing the connection between the movable rod and the gear;
FIG. 9 is a schematic view of the connection between the cam and the rotary block of the present invention, wherein each structure is in an initial state and does not change its position;
FIG. 10 is a schematic view of the cam and the rotor according to the present invention, wherein the cam is rotated to cause the rotor to move downward.
In the figure: 1-outer frame, 2-placing plate, 3-mould, 4-convex disc, 5-rotating block, 6-top block, 7-rotating disc, 8-ratchet wheel, 9-first clamping rod, 10-second clamping rod, 11-cover plate, 12-convex column, 13-first tooth block, 14-second tooth block, 15-moving rod and 16-gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, an injection molding apparatus for automatically closing a mold and vibrating by using the gravity of plastic comprises an outer frame 1, wherein the outer frame 1 is in a mountain shape, the bottom of the outer frame 1 is fixedly connected with an inverted convex pipe, the inside of the convex pipe is fixedly connected with a clamping pipe, the top of the outer frame 1 is movably connected with a placing plate 2, the bottom of the placing plate 2 is movably connected with a spring, the spring is positioned inside a branch pipe at two sides of the outer frame 1, the bottom of the spring is movably connected with the outer frame 1, the upper part of the placing plate 2 is movably connected with a mold 3, the bottom of the mold 3 is movably connected with the spring, the bottom of the spring is fixedly connected with the placing plate 2, the outer side of the mold 3 is fixedly connected with a baffle, the inside of the outer frame 1 is movably connected with two convex discs 4, the two convex discs 4 have the same size, the convex discs 4 are in a water drop shape, the rotating block 5 is movably connected with the long shaft end of the convex disc 4, so that the convex disc 4 can drive the rotating block 5 to move up and down when rotating, the top of the rotating block 5 is movably and fixedly connected with a supporting rod, and the top of the supporting rod is movably connected with a top block 6.
The top of the rotating block 5 is movably connected with a top block 6, a hollow groove is formed in the top block 6, a connecting rod is movably connected in the hollow groove, a spring is movably connected to the outer side of the connecting rod, a baffle is fixedly connected to the top of the spring, the top of the connecting rod is movably clamped in the clamping pipe, when the top block 6 moves up and down, the placing plate 2 is driven to synchronously move by pushing the convex pipe, so that the placing plate 2 vibrates, the spring on the outer side of the connecting rod has a buffering effect on the up-and-down movement of the placing plate 2, the outer side of the outer frame 1 is movably connected with a rotating disc 7, the outer side of the rotating disc 7 is fixedly connected with a connecting rod, one side of the connecting rod, which is far away from the rotating disc 7, is fixedly connected with a right convex disc 4, the outer side of the rotating disc 7 is movably connected with a first, the size of the first clamping rod 9 is matched with that of the ratchet wheel 8, and initially, the first clamping rod 9 is far away from the ratchet wheel 8, close to the elastic sheet and extrudes the elastic sheet, so that the rotary table 7 cannot rotate along with the ratchet wheel 8.
The outer side of the rotary table 7 is movably connected with a second clamping rod 10, the second clamping rod 10 is in an L shape, the surface of a vertical rod of the second clamping rod 10 is fixedly connected with a clamping block, the top of the vertical rod is fixedly connected with a pull rope, the top of the pull rope is fixedly connected with a push rod, the push rod is fixedly connected with the mold 3, the mold 3 drives the push rod to move downwards, so that the pull rope is loosened, the second clamping rod 10 is subjected to the gravity action of a cross rod of the second clamping rod 10, the fixed block on the outer side of the second clamping rod is taken as a rotation point to rotate anticlockwise, the vertical rod of the second clamping rod 10 is far away from the first clamping rod 9, the first clamping rod 9 is subjected to the action of an outer side elastic sheet, the connection part of the first clamping rod 9 and the rotary table 7 is taken as a rotation point to rotate clockwise, the first clamping rod 9 is clamped between the ratchet wheels 8, so that the rotary, when apron 11 rotates, its gyro wheel pastes the surface at projection 12 all the time, make apron 11 can smooth and easy motion, apron 11's outside fixedly connected with projection 12, projection 12 is close to one side of gyro wheel and presents gradual upward formula curved surface, apron 11's the first tooth piece 13 of outside fixedly connected with, the size of first tooth piece 13 and the size looks adaptation of second tooth piece 14, the outside fixedly connected with bull stick of second tooth piece 14, the outside swing joint of bull stick has the connecting rod, one side and the carriage release lever 15 swing joint of bull stick are kept away from to the connecting rod, drive connecting rod synchronous motion when making carriage release lever 15 move down, drive second tooth piece 14 through the bull stick and take place anticlockwise rotation, second tooth piece 14 meshes with first tooth piece 13 mutually, drive first tooth piece 13 clockwise turning.
The outer side of the first gear block 13 is movably connected with a second gear block 14, the outer side of the second gear block 14 is movably connected with a movable rod 15, the outer side of the movable rod 15 is fixedly connected with a limiting block, the surface of the movable rod 15 is fixedly connected with sawteeth, the size of the sawteeth is matched with the size of a gear 16, the bottom of the movable rod 15 is fixedly connected with a rack, the size of the rack is matched with the size of the gear 16, the top of the rack is movably connected with a gear block, the inner part of the gear block is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a connecting block, the connecting block is fixedly connected with the outer side of the rack, the lower part of the gear block is movably connected with a spring, the bottom of the spring is fixedly connected with the connecting block, when the gear 16 rotates, the gear block can drive the rack to move downwards, when the gear block is close to the gear 16, the gear, the moving rod 15 also moves synchronously, a gear 16 is fixedly connected to the outer side of the moving rod 15, the gear 16 is located on the outer side of the ratchet wheel 8, and one side, away from the rotating disc 7, of the first clamping rod 9 is movably connected with the gear 16, so that when the first clamping rod 9 is clamped between the ratchet teeth of the ratchet wheel 8, the gear 16 is driven to rotate synchronously when the ratchet wheel 8 rotates.
The working process and the principle of the device are as follows:
inject the material into mould 3, mould 3 moves down and is close to and places board 2, push rod synchronous movement is close to second kelly 10, distance between its push rod and the 10 horizontal poles of second kelly shortens to make the stay cord lax, second kelly 10 receives the action of gravity of its self horizontal pole, make second kelly 10 use its junction with outside fixed block to straighten the stay cord again for the rotation point anticlockwise rotation, first kelly 9 is kept away from to the montant of second kelly 10, first kelly 9 receives the effect of its outside shell fragment, make the junction of first kelly 9 and carousel 7 and gear 16 take place clockwise rotation for the rotation point, first kelly 9 card is between ratchet 8's ratchet, drive carousel 7 and gear 16 when making ratchet 8 pivoted and rotate.
Please refer to fig. 1 and fig. 3-4 for the above structure and process.
The gear 16 is meshed with a rack at the bottom of the moving rod 15, the gear 16 drives the rack to move downwards, a toothed block is close to the gear 16, the gear 16 pushes the toothed block to move downwards to be close to the rack, the toothed block moves upwards under the action of a spring at the bottom of the toothed block, the position of the rack is not changed when the gear 16 continuously rotates, the moving rod 15 also moves synchronously, the moving rod 15 pulls the connecting rod to move synchronously when moving downwards, the connecting rod pulls the second toothed block 14 to rotate anticlockwise through the rotating rod, the second toothed block 14 is meshed with the first toothed block 13 to drive the first toothed block 13 to rotate clockwise, the first toothed block 13 drives the cover plate 11 to move synchronously, a roller at the bottom of the cover plate 11 is attached to the surface of the convex column 12 to move, the cover plate 11 rotates to be close to the mold 3 to be horizontally placed; carousel 7 drives the protruding dish 4 and rotates, and protruding dish 4 drives commentaries on classics piece 5 and reciprocates, and branch synchronous movement is and drive kicking block 6 and reciprocate, and kicking block 6 promotes the protruding pipe of placing board 2, and the protruding pipe promotes to place board 2 and reciprocates and make and place board 2 and take place vibrations, and the spring in the connecting rod outside has the cushioning effect to reciprocating of placing board 2, and 3 synchronous motion of mould makes the material evenly distributed in the mould 3.
Please refer to fig. 2 and fig. 5-10 for the above structure and process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an utilize gravity of plastics to carry out automatic compound die and injection moulding equipment of vibrations, includes frame (1), its characterized in that: the top of the outer frame (1) is movably connected with a placing plate (2), a mold (3) is movably connected above the placing plate (2), a convex disc (4) is movably connected inside the outer frame (1), a rotating block (5) is fixedly connected to the outer side of the convex disc (4), a top block (6) is movably connected to the top of the rotating block (5), a rotating disc (7) is movably connected to the outer side of the outer frame (1), a ratchet wheel (8) is movably connected to the outer side of the rotating disc (7), a first clamping rod (9) is movably connected to the outer side of the rotating disc (7), a second clamping rod (10) is movably connected to the outer side of the rotating disc (7), a cover plate (11) is movably connected to the outer side of the mold (3), a convex column (12) is fixedly connected to the outer side of the cover plate (11), a first tooth block (13) is fixedly connected to the outer side of the cover plate (11), the outer side of the second tooth block (14) is movably connected with a movable rod (15), and the outer side of the movable rod (15) is fixedly connected with a gear (16).
2. An injection molding apparatus for automatically closing molds and vibrating using gravity of plastic as claimed in claim 1, wherein: frame (1) presents "mountain" form, places the bottom swing joint of board (2) and has the spring, and the spring is located inside the both sides branch pipe of frame (1), the bottom and frame (1) swing joint of spring, the protruding pipe of the bottom fixedly connected with inversion of frame (1), the inside fixedly connected with card pipe of protruding pipe.
3. An injection molding apparatus for automatically closing molds and vibrating using gravity of plastic as claimed in claim 1, wherein: protruding dish (4) have two and the size is the same, protruding dish (4) present the water droplet form, change piece (5) and be located between two protruding dishes (4), the major axis end swing joint of changing piece (5) and protruding dish (4), the top activity fixedly connected with branch of changing piece (5), the top swing joint of branch has kicking block (6), the dead slot has been seted up to the inside of kicking block (6), the inside swing joint of dead slot has the connecting rod, the outside swing joint of connecting rod has the spring, the top fixedly connected with baffle of spring, the top activity card of connecting rod is in the kelly.
4. An injection molding apparatus for automatically closing molds and vibrating using gravity of plastic as claimed in claim 1, wherein: the outer side of the rotary table (7) is fixedly connected with a connecting rod, one side of the connecting rod, which is far away from the rotary table (7), is fixedly connected with the right convex disc (4), and the outer side of the rotary table (7) is movably connected with a first clamping rod (9).
5. An injection molding apparatus for automatically closing molds and vibrating using gravity of plastic as claimed in claim 1, wherein: the bottom of the cover plate (11) is movably connected with a roller, the outer side of the roller is fixedly connected with a convex column (12), and one side of the convex column (12) close to the roller presents a gradually upward curved surface.
6. An injection molding apparatus for automatically closing molds and vibrating using gravity of plastic as claimed in claim 1, wherein: the size of first tooth piece (13) and the size looks adaptation of second tooth piece (14), the outside fixedly connected with bull stick of second tooth piece (14), the outside swing joint of bull stick has the connecting rod, one side and carriage release lever (15) swing joint of bull stick are kept away from to the connecting rod, the outside fixedly connected with stopper of carriage release lever (15), the fixed surface of carriage release lever (15) is connected with the sawtooth, the size looks adaptation of its size and gear (16).
7. An injection molding apparatus for automatically closing molds and vibrating using gravity of plastic as claimed in claim 1, wherein: the outside swing joint of first kelly (9) has the shell fragment, the size of first kelly (9) and the size looks adaptation of ratchet (8), and second kelly (10) presents "L" form, and the fixed surface of its montant is connected with the fixture block, the top fixedly connected with stay cord of montant, the top fixedly connected with push rod of stay cord, push rod and mould (3) fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272071.6A CN110919998A (en) | 2019-12-12 | 2019-12-12 | Injection molding equipment capable of automatically closing mold and vibrating by using gravity of plastic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272071.6A CN110919998A (en) | 2019-12-12 | 2019-12-12 | Injection molding equipment capable of automatically closing mold and vibrating by using gravity of plastic |
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| CN110919998A true CN110919998A (en) | 2020-03-27 |
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| CN201911272071.6A Pending CN110919998A (en) | 2019-12-12 | 2019-12-12 | Injection molding equipment capable of automatically closing mold and vibrating by using gravity of plastic |
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| CN111264953A (en) * | 2020-04-10 | 2020-06-12 | 林慧丽 | Prevent to remove and convenient operation's drilling equipment for clothing production |
| CN112049404A (en) * | 2020-09-09 | 2020-12-08 | 王�忠 | Hoisting device under high-rise building cable shaft |
| CN113043062A (en) * | 2021-04-02 | 2021-06-29 | 泉州恒利达工程机械有限公司 | Special numerical control machine tool for machining caterpillar link of excavator |
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