CN109016381B

CN109016381B - Plastic mold capable of slowly falling to prevent rigid collision during mold closing

Info

Publication number: CN109016381B
Application number: CN201811176394.0A
Authority: CN
Inventors: 陈宁
Original assignee: Qianxu Advertising Design Department Wangchuan Town Hui'an County
Current assignee: Dongguan Yike Precision Manufacturing Co.,Ltd.
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2020-10-23
Anticipated expiration: 2038-10-10
Also published as: CN109016381A

Abstract

The invention discloses a plastic mould which slowly falls to prevent rigid collision when closing the mould, the structure of the plastic mould comprises a top plate, an upper mould, a buffer device, a lower mould, a supporting block and a base, the upper mould is fixed at the center of the bottom surface of the top plate, and 4 corner parts of the upper mould are connected with 4 corner parts of the lower mould through the buffer device, compared with the prior art, the plastic mould has the advantages that: the plastic mold designs on original mould, not only has the function of guiding orientation, still has the function of buffering, based on the magnetism principle, when the compound die, utilize magnetism homopolar repulsion and pressure variation principle, make and go up the mould and can slowly fall, the mould and lower mould emergence rigidity collision that can significantly reduce, it is impaired with the lower mould effectively to avoid going up the mould, thereby effectively avoid going up the phenomenon that the gap appears with the lower mould, avoid moulding plastics thick liquid from the gap outflow, make the quality and the quality of plastics product not influenced, avoid the material extravagant, reduce the cost of manufacture, time saving and labor saving.

Description

Plastic mold capable of slowly falling to prevent rigid collision during mold closing

Technical Field

The invention relates to the technical field of plastic manufacturing, in particular to a plastic mold which slowly falls to prevent rigid collision during mold closing.

Background

The mould generally includes two parts of upper mold and lower mold, the two can be separated and closed, the part is taken out when separated, the blank is injected into the mould cavity to form when closed, the plastic mould generally has to work under 150-200 ℃, except that certain pressure action, it also has to bear the temperature influence, so the plastic mould needs to have enough surface hardness to ensure the mould has enough rigidity, the big hardness and rigidity make the plastic mould have the following defects when closed:

when the folding device is folded, the upper die and the lower die cannot be buckled at a very slow speed, the hardness and the rigidity of the upper die and the lower die are high, rigid collision can occur during folding, the two high-strength rigid collisions inevitably cause abrasion, and a gap is easily formed between the upper die and the lower die after a long time, injection molding slurry is likely to flow out of the gap, so that the quality of a plastic product is affected, the manufactured product is likely to be a waste product, the material is wasted, the manufacturing cost is improved, and time and labor are wasted.

Disclosure of Invention

The invention mainly aims to overcome the defects of the prior art and provide a plastic mold which slowly falls during mold closing to prevent rigid collision.

The invention is realized by adopting the following technical scheme: the utility model provides a slowly fall plastic mold who prevents rigidity collision when compound die, its structure includes the roof, goes up mould, buffer, lower mould, supporting shoe, base, the bottom surface center of roof is fixed with the mould, 4 angle positions of going up the mould all are connected through 4 angle positions of buffer with the lower mould, 4 groups have been laid to buffer, the bottom surface both sides of lower mould all are connected with the base through the supporting shoe of rectangle structure, buffer is including direction cushion column, direction cushion cylinder, direction cushion column runs through in direction cushion cylinder and both adopt clearance fit, direction cushion column is connected with the bight position of last mould is perpendicular, direction cushion cylinder runs through on the bight position of lower mould.

As the optimization, the direction bumping post is including connecting block, buffering post body, electro-magnet, recess, the top surface of buffering post body is connected perpendicularly with the bottom surface center of the connecting block of circular structure, connecting block and buffering post body structure as an organic whole, the buffering post body is kept away from one of connecting block and is served and set up the recess, the recess is embedded to have the electro-magnet with the excessive complex of buffering post body, the connecting block is with the bight position fixed connection of last mould, the electro-magnet is towards the direction of direction buffer cylinder, the buffering post body still cooperatees with the direction buffer cylinder.

As optimization, the direction buffer tube is including permanent magnetism ring, disc, spliced pole, liquid, buffer tube body, plug, the plug runs through the central point that puts in the buffer tube body, the buffer tube body embeds there is liquid, be connected through the spliced pole between the top surface center of plug and the bottom surface center of disc, spliced pole perpendicular to plug, disc respectively, the disc is kept away from the one side embedded of spliced pole and is had the permanent magnetism ring, the buffer tube body runs through in matched with buffer tube body with it, the buffer tube body embedded in the bight position with it adopts excessive complex lower mould.

As optimization, the buffer cylinder body comprises a limiting lead-in hole, a cavity, a hollow groove, a cylinder body, limiting blocks and a liquid outlet hole, the limiting lead-in hole of a circular structure is arranged at the center of the top surface of the cylinder body, the limiting lead-in hole is communicated with the hollow groove, the hollow groove is arranged at the center of the cylinder body, the limiting blocks fixedly connected with the cylinder body are arranged under the hollow groove, two limiting blocks are arranged, the liquid outlet hole is formed between the two limiting blocks, the liquid outlet hole is communicated with the hollow groove and the cavity, and the outer wall of the hollow groove and the inner wall of the cylinder body form a cavity.

Preferably, the liquid is distributed in the cavity and the hollow groove, the rubber plug is arranged in the hollow groove matched with the rubber plug, and the buffer cylinder body penetrates through the limiting lead-in hole and is in clearance fit with the hollow groove.

Preferably, the liquid is vegetable oil.

As optimization, the hollow groove is arranged in a cylindrical structure, and the diameter numerical value of the hollow groove is slightly larger than that of the disc.

For optimization, the caliber value of the connecting block is slightly larger than the diameter value of the hollow groove, and the caliber value of the connecting block is slightly smaller than the diameter value of the limiting lead-in hole.

As optimization, the limiting blocks are arranged in an arc-shaped structure, and the two limiting blocks form a bracket structure.

For optimization, the permanent magnet ring and the electromagnet are oppositely arranged, and the permanent magnet ring 320 always has an N pole facing outwards.

Advantageous effects

Compared with the prior art, the invention has the beneficial effects that: this plastic mold designs on original mould, four guide posts that will go up the mould design into direction cushion cylinder, design into direction buffer cylinder with four guiding holes of lower mould, not only have the function of guiding orientation, still have the function of buffering, based on the magnetism principle, when the compound die, utilize magnetism homopolar repulsion and pressure variation principle, make and go up the mould and can slowly fall, can significantly reduce and go up the mould and take place the rigidity collision with the lower mould, effectively avoid going up mould and lower mould impaired, thereby effectively avoid going up the phenomenon that the gap appears with the lower mould, avoid moulding plastics thick liquid from the gap outflow, make the quality and the quality of plastic products not influenced, avoid the material extravagant, and the cost of manufacture is reduced, time saving and labor saving.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a plastic mold of the present invention which slowly falls to prevent rigid collision when closing the mold.

Fig. 2 is a schematic structural diagram of another working state of fig. one.

Fig. 3 is a schematic structural view of a front view of the guide strut of the present invention.

Fig. 4 is a schematic structural view of a front view of the guide buffer cylinder of the present invention.

Fig. 5 is a schematic perspective view of the buffer cylinder of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

the device comprises a top plate-1, an upper die-2, a buffer device-3, a lower die-4, a supporting block-5, a base-6, a guide buffer column-31, a guide buffer cylinder-32, a connecting block-310, a buffer column body-311, an electromagnet-312, a groove-313, a permanent magnet ring-320, a disc-321, a connecting column-322, liquid-323, a buffer cylinder body-324, a rubber plug-325, a limiting lead-in hole-324 a, a cavity-324 b, a hollow groove-324 c, a cylinder body-324 d, a limiting block-324 e and a liquid outlet hole-324 f.

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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a plastic mold that slowly falls during mold closing to prevent rigid collision, which comprises: its structure includes roof 1, last mould 2, buffer 3, lower mould 4, supporting shoe 5, base 6, the bottom surface center of roof 1 is fixed with

last mould

2, 4 angle positions of going up mould 2 all are connected with 4 angle positions of lower mould 4 through

buffer

3, 4 groups have been laid to buffer 3, the bottom surface both sides of lower mould 4 all are connected with base 6 through the supporting shoe 5 of rectangle structure, buffer 3 is including direction buffering post 31, direction buffer cylinder 32, direction buffering post 31 runs through in direction buffer cylinder 32 and both adopt clearance fit, direction buffering post 31 is connected perpendicularly with the angle position of last mould 2, direction buffer cylinder 32 runs through on the angle position of lower mould 4.

Guide buffer column 31 is including connecting block 310, buffering post body 311, electro-magnet 312, recess 313, the top surface of buffering post body 311 is connected perpendicularly with the bottom surface center of the connecting block 310 of circular structure, connecting block 310 and buffering post body 311 structure as an organic whole, buffering post body 311 is kept away from one of connecting block 310 and is served groove 313, the recess 313 is embedded to have and is cushioned post body 311 excessive complex electro-magnet 312, connecting block 310 and the angle position fixed connection who goes up mould 2, electro-magnet 312 is towards the direction of direction buffer cylinder 32, buffering post body 311 still cooperatees with direction buffer cylinder 32.

The direction buffer cylinder 32 is including permanent magnetism ring 320, disc 321, spliced pole 322, liquid 323, buffer cylinder body 324, plug 325 runs through the central point in buffer cylinder body 324 and puts, buffer cylinder body 324 embeds there is liquid 323, be connected through spliced pole 322 between the top surface center of plug 325 and the bottom surface center of disc 321, spliced pole 322 is perpendicular to plug 325, disc 321 respectively, the disc 321 is kept away from the one side of spliced pole 322 and is embedded to have permanent magnetism ring 320, buffer cylinder body 311 runs through in matched with buffer cylinder body 324 with it, buffer cylinder body 324 embedded in the angle position of adopting excessive complex lower mould 4 with it.

The buffer cylinder body 324 comprises a limiting lead-in hole 324a, a cavity 324b, a hollow groove 324c, a cylinder body 324d, a limiting block 324e and a liquid outlet hole 324f, the limiting lead-in hole 324a with a circular structure is arranged in the center of the top surface of the cylinder body 324d, the limiting lead-in hole 324a is communicated with the hollow groove 324c, the hollow groove 324c is arranged in the center of the cylinder body 324d, the limiting block 324e fixedly connected with the cylinder body 324d is arranged right below the hollow groove 324c, two limiting blocks 324e are arranged, the liquid outlet hole 324f is formed between the two limiting blocks 324e, the liquid outlet hole 324f is communicated with the hollow groove 324c and the cavity 324b, and the outer wall of the hollow groove 324c and the inner wall of the cylinder body 324d form the cavity 324 b.

The liquid 323 is disposed inside the cavity 324b and the hollow groove 324c, the rubber plug 325 is disposed in the hollow groove 324c, and the buffer tube body 324 penetrates through the limiting introduction hole 324a and is in clearance fit with the hollow groove 324 c.

The liquid 323 is vegetable oil.

The hollow groove 324c is arranged in a cylindrical structure, and the diameter value of the hollow groove 324c is slightly larger than that of the disc 321, so that the friction between the disc 321 and the inner wall of the hollow groove 324c during the lifting process is effectively prevented, and the friction between the disc 321 and the hollow groove 324c is avoided.

The aperture value of the connecting block 310 is slightly larger than the diameter value of the hollow groove 324c, the aperture value of the connecting block 310 is slightly smaller than the diameter value of the limiting introduction hole 324a, and the hollow groove 324c and the limiting introduction hole 324a both have guiding and limiting effects on the connecting block 310, so that the connecting block 310 can enter the limiting introduction hole 324, and the connecting block 310 can also be prevented from entering the hollow groove 324 c.

The limiting blocks 324e are arranged in an arc-shaped structure, the two limiting blocks 324e form a bracket structure, so that the rubber plug 325 can be limited, and the liquid outlet hole 324f can be formed, so that the liquid 323 can come in and go out.

The permanent magnet ring 320 and the electromagnet 312 are oppositely arranged, and the permanent magnet ring 320 always has the N pole facing outwards, so that based on the magnetic principle, when the electromagnet 312 is electrified and the permanent magnet ring 320 is in the same polarity, repulsion is generated on the permanent magnet ring 320, and when the electromagnet 312 is electrified and the permanent magnet ring 320 is in the opposite polarity, attraction is generated on the permanent magnet ring 320.

The working principle of the invention is as follows: when the upper mold 2 and the lower mold 4 are closed, the electromagnet 312 is first controlled to be electrified to generate magnetism with the N pole facing outwards, the guiding buffer columns 31 in four directions of the upper mold 2 are matched with the lower mold 4 under the guiding and limiting action of the guiding buffer cylinder 32, the guiding buffer columns 31 enter the guiding buffer cylinder 32, as the electromagnet 312 is the N pole facing outwards at this time, the electromagnet 312 is opposite to the permanent magnet ring 320, and the permanent magnet ring 320 is also the N pole facing outwards, and the like poles repel each other based on the magnetism principle, the buffer column body 311 enters the buffer cylinder body 324, the electromagnet 312 generates repulsion force on the permanent magnet ring 320, so that the permanent magnet ring 320 pushes the rubber plug 325 to descend through the connecting column 322, the rubber plug 325 extrudes the liquid 323, so that the liquid 323 in the hollow groove 324c is extruded from the liquid outlet hole 324f to the cavity 324b, and as the aperture of the liquid outlet hole 324f is smaller, a larger pressure is formed in the hollow groove, therefore, the falling of the upper die 2 can be decelerated, the upper die 2 slowly falls, the upper die 2 and the lower die 4 are successfully closed until the rubber plug 325 falls under the limitation of the limit block 324e, the closing can greatly reduce the rigid collision between the upper die 2 and the lower die 4, the damage of the upper die 2 and the lower die 4 is effectively avoided, the falling speed, namely the buffer coefficient, is related to the magnetic force of the electromagnet 312, if the electrifying current of the electromagnet 312 is larger, the magnetic force is larger, the electromagnet 312 generates larger magnetic force on the permanent magnetic ring 320, the rubber plug 325 rapidly extrudes the liquid 323, if the electrifying current of the electromagnet 312 is smaller, the magnetic force is smaller, the electromagnet 312 generates smaller magnetic force on the permanent magnetic ring 320, the rubber plug 325 slowly extrudes the liquid 323, when the die is opened, the electromagnet 312 is firstly controlled to be electrified to generate magnetism, the S pole faces outwards, and the permanent magnetic ring 320 always faces outwards, based on the magnetic principle, the electromagnet 312 generates attraction force on the permanent magnet ring 320, so that the permanent magnet ring 320 pulls the rubber plug 325 to rise through the connecting column 322, the pressure in the hollow groove 324c becomes small, the volume becomes large, the liquid level falls, and the liquid 323 in the cavity 324b flows to the hollow groove 324c through the liquid outlet hole 324f to be reset.

In summary, the technical progress obtained by the invention compared with the prior art is as follows: this plastic mold designs on original mould, four guide posts that will go up the mould design into direction cushion cylinder, design into direction buffer cylinder with four guiding holes of lower mould, not only have the function of guiding orientation, still have the function of buffering, based on the magnetism principle, when the compound die, utilize magnetism homopolar repulsion and pressure variation principle, make and go up the mould and can slowly fall, can significantly reduce and go up the mould and take place the rigidity collision with the lower mould, effectively avoid going up mould and lower mould impaired, thereby effectively avoid going up the phenomenon that the gap appears with the lower mould, avoid moulding plastics thick liquid from the gap outflow, make the quality and the quality of plastic products not influenced, avoid the material extravagant, and the cost of manufacture is reduced, time saving and labor saving.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a plastic mold who slowly falls and prevent rigid collision when compound die, its structure includes roof (1), goes up mould (2), buffer (3), lower mould (4), supporting shoe (5), base (6), the bottom surface center of roof (1) is fixed with last mould (2), 4 angle positions of going up mould (2) all are connected with 4 angle positions of lower mould (4) through buffer (3), 4 groups have been laid in buffer (3), the bottom surface both sides of lower mould (4) all are connected with base (6) through supporting shoe (5) of rectangle structure, its characterized in that: the buffer device (3) comprises a guide buffer column (31) and a guide buffer cylinder (32), the guide buffer column (31) penetrates through the guide buffer cylinder (32) and is in clearance fit with the guide buffer cylinder, the guide buffer column (31) is vertically connected with a corner of the upper die (2), and the guide buffer cylinder (32) penetrates through the corner of the lower die (4); the guide buffer column (31) comprises a connecting block (310), a buffer column body (311), an electromagnet (312) and a groove (313), the top surface of the buffer column body (311) is vertically connected with the center of the bottom surface of the connecting block (310) with a circular structure, the connecting block (310) and the buffer column body (311) are of an integrated structure, the groove (313) is formed in one end, away from the connecting block (310), of the buffer column body (311), the electromagnet (312) which is excessively matched with the buffer column body (311) is embedded in the groove (313), the connecting block (310) is fixedly connected with the corner of the upper die (2), the electromagnet (312) faces the direction of the guide buffer cylinder (32), and the buffer column body (311) is also matched with the guide buffer cylinder (32); the guide buffer cylinder (32) comprises a permanent magnet ring (320), a disc (321), a connecting column (322), liquid (323), a buffer cylinder body (324) and a rubber plug (325), the rubber plug (325) penetrates through the center of the buffer cylinder body (324), the liquid (323) is arranged in the buffer cylinder body (324), the top center of the rubber plug (325) is connected with the bottom center of the disc (321) through the connecting column (322), the connecting column (322) is perpendicular to the rubber plug (325) and the disc (321) respectively, the permanent magnet ring (320) is embedded in one surface of the disc (321) far away from the connecting column (322), the buffer cylinder body (311) penetrates through the buffer cylinder body (324) matched with the buffer cylinder body, and the buffer cylinder body (324) is embedded in a corner of a lower die (4) excessively matched with the buffer cylinder body; the buffer cylinder body (324) comprises a limiting lead-in hole (324a), a cavity (324b), a hollow groove (324c), a cylinder body (324d), a limiting block (324e) and a liquid outlet hole (324f), the top center of the cylinder (324d) starts to be provided with a limit lead-in hole (324a) with a circular structure, the limiting lead-in hole (324a) is communicated with a hollow groove (324c), the hollow groove (324c) is arranged at the central position of the cylinder body (324d), a limit block (324e) fixedly connected with the cylinder body (324d) is arranged right below the hollow groove (324c), two limiting blocks (324e) are distributed, a liquid outlet hole (324f) is formed between the two limiting blocks (324e), the liquid outlet hole (324f) is communicated with the hollow groove (324c) and the cavity (324b), the outer wall of the hollow groove (324c) and the inner wall of the cylinder (324d) form a cavity (324 b); the liquid (323) is arranged inside the cavity (324b) and the hollow groove (324c), the rubber plug (325) is arranged in the hollow groove (324c) matched with the rubber plug, and the buffer cylinder body (324) penetrates through the limiting lead-in hole (324a) and is in clearance fit with the hollow groove (324 c); the liquid (323) is vegetable oil.