CN113290749A - High-precision splicing type plastic mold and splicing method - Google Patents
High-precision splicing type plastic mold and splicing method Download PDFInfo
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- CN113290749A CN113290749A CN202110541751.4A CN202110541751A CN113290749A CN 113290749 A CN113290749 A CN 113290749A CN 202110541751 A CN202110541751 A CN 202110541751A CN 113290749 A CN113290749 A CN 113290749A
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- mold
- fixedly connected
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- sleeve
- buffer
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/32—Mounting, exchanging or centering using magnetic means
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Aviation & Aerospace Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a high-precision splicing type plastic mold and a splicing method, and belongs to the technical field of mold equipment. In the invention, the normal service life of the lower die and the upper die is ensured by the mutual matching of the designed structures such as the conductor rod, the permanent magnet seat, the electromagnet, the permanent magnet ring, the conductor sleeve, the conductor rod, the spring piece, the adjusting nut, the positioning screw rod, the lifting seat, the positioning screw rod and the like, in addition, the buffer effect can be played, the buffer force of the supporting spring can be assisted by the magnetic force, the load strength of the supporting spring can be reduced, the metal fatigue strength of the supporting spring can be reduced, the slurry splashing caused by larger impact force at the moment that the upper die is contacted with the slurry in the lower die can be weakened, the slurry can be directly stressed in multiple aspects, the density after the slurry is extruded and formed is effectively improved, and the quality of plastic products is effectively improved.
Description
Technical Field
The invention belongs to the technical field of mold equipment, and particularly relates to a high-precision splicing type plastic mold and a splicing method.
Background
The plastic mould is a combined mould for compression moulding, extrusion moulding, injection, blow moulding and low-foaming moulding, and can be used for processing a series of plastic parts with different shapes and sizes by means of the coordinated change of the male mould, the female mould and the auxiliary moulding system.
The plastic mould is the mother of industry, the release of new product all can involve plastics, at present, mould on the market is in the use, often can be because of last mould and the great harm of impact force and reaction force that exists between the two of bed die, not only improved the manufacturing cost of plastics, still can reduce the yield efficiency of plastics, and current plastic mould is mostly the integral type structure, the good plastics of shaping are not convenient for take out, and thick liquids are when extrusion, the easy impact force that receives is great and outer spattering, and the direct stress surface of thick liquids is mostly one side, the hydraulic pressure that needs to provide is higher, therefore, need high concatenation formula plastic mould to solve above-mentioned problem in the market of present stage urgently needed.
Disclosure of Invention
The invention aims to: in order to solve present, mould on the market is in the use, often can be because of last mould and the great harm of impact force and reaction force that exists between the two of bed die, the manufacturing cost of plastics has not only been improved, still can reduce the production efficiency of plastics, and current plastic mould is mostly the integral type structure, the good plastics of shaping are not convenient for take out, and thick liquids are when extrusion, the impact force that easily receives is great and spatters outward, and the direct stress surface of thick liquids is mostly one side, hydraulic pressure that required providing is higher, problem with high costs, and the concatenation formula plastic mould that the precision that proposes is high.
In order to achieve the purpose, the invention adopts the following technical scheme:
the splicing type plastic mold with high precision and the splicing method comprise a base, wherein a buffer sleeve is fixedly connected to the top of the base, a buffer rod is sleeved in the buffer sleeve, one end, deviating from the base, of the buffer rod is fixedly connected with the bottom of a connecting seat, a lower mold is fixedly connected to the inner side of the connecting seat, a mold plate is slidably connected to the inner side wall of the lower mold, a first toothed plate is fixedly connected to the bottom of the mold plate, a gear is meshed to the side surface of the first toothed plate, a second toothed plate is meshed to the surface, deviating from the first toothed plate, of the gear, the second toothed plate is located in a sliding groove, the sliding groove is formed in the bottom of the lower mold, a lifting seat is slidably connected to the sliding groove, the bottom of the lifting seat is fixedly connected with the top of the second toothed plate, a positioning screw is fixedly connected to the top of the lifting seat, and a first rigid sleeve is sleeved on the surface of the positioning screw, the first rigid sleeve is clamped at the top of the inner side of the sliding groove, the surface of the positioning screw is in threaded connection with an adjusting nut, and the adjusting nut is positioned above the lower die.
As a further description of the above technical solution:
the bottom fixedly connected with conductor cover of buffer lever, the conductor pole has been cup jointed in the conductor cover to the inside bottom of buffer cover is provided with the permanent magnetism seat corresponding conductor cover and conductor pole's position, the quantity of permanent magnetism seat is two, and the opposite magnetic pole of two permanent magnetism seats is opposite.
As a further description of the above technical solution:
the bottom of the buffer rod is fixedly connected with a permanent magnet ring, an electromagnet is arranged at the position, corresponding to the permanent magnet ring, of the bottom of the inner side of the buffer sleeve, the electromagnet is the same as the magnetic pole of the side, close to the permanent magnet ring, of the electromagnet after being electrified, the top of the permanent magnet seat is fixedly connected with one end, close to the supporting spring, and the other end of the supporting spring is fixedly connected with one end, close to the buffer rod.
As a further description of the above technical solution:
the gear fixed connection is on the surface of change-over axle, the bearing has been cup jointed on the surface of change-over axle, the bearing joint is on the one side that the side board seat is close, the side of side board seat and the inside wall fixed connection of bed die.
As a further description of the above technical solution:
the surface of the positioning screw rod is sleeved with a spring piece, one end of the spring piece is fixedly connected with the top of the lower die, and the other end of the spring piece is in lap joint with the bottom of the adjusting nut.
As a further description of the above technical solution:
an upper die is arranged above the lower die, and a top seat is fixedly connected to one side of the upper die, which deviates from the lower die.
As a further description of the above technical solution:
the top end of the positioning screw rod is fixedly connected with a sharp awl, and a second rigid sleeve is clamped at the position, corresponding to the sharp awl, of the top seat.
As a further description of the above technical solution:
the quantity of cushion collar is four, and four cushion collar evenly distributed are in the four corners department at base top, the bottom fixedly connected with rubber pad of base.
As a further description of the above technical solution:
the inner diameters of the first rigid sleeve and the second rigid sleeve are the same in size, and the second rigid sleeve and the first rigid sleeve are both members made of stainless steel materials.
As a further description of the above technical solution:
the sliding groove and the lifting seat have the same cross section shape in plan view, and the outer diameter of the lifting seat is matched with the inner diameter of the sliding groove.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, through the mutual cooperation of the designed structures such as the conductor rod, the permanent magnet seat, the electromagnet, the permanent magnet ring, the conductor sleeve, the conductor rod, the spring piece, the adjusting nut, the positioning screw rod, the lifting seat, the positioning screw rod and the like, the multi-band buffering effect can be realized, on one hand, the buffering effect can be improved, the damage of the upper die and the lower die caused by strong acting force can be avoided, the normal service life of the lower die and the upper die is ensured, in addition, the buffering effect can be realized, simultaneously, the buffering force of the supporting spring can be assisted by the magnetic force, the load strength of the supporting spring can be reduced, the metal fatigue strength of the supporting spring can be reduced, the slurry splashing caused by larger impact force at the moment that the upper die is contacted with the slurry in the lower die can be weakened, the slurry can be directly stressed in various aspects, and the density of the slurry after extrusion forming is effectively improved, effectively improves the quality of the plastic product.
2. In the invention, by designing the buffer sleeve, the buffer rod, the conductor sleeve, the conductor rod, the permanent magnet seats, the electromagnet and the permanent magnet rings, when the upper die descends into the upper die and contacts with the slurry in the lower die, a larger impact force and a larger reaction force can be generated between the upper die and the lower die, the upper die can transfer the impact force to the buffer rod through the connecting seat, so that the buffer rod retracts in the buffer sleeve, the conductor rod and the conductor sleeve descend under the driving of the buffer rod, the conductor rod and the conductor sleeve cut a magnetic induction line between the two permanent magnet seats and generate current in the descending process, the current is used on the electromagnet after being converted by the current conversion circuit, and because the electromagnet has the same magnetic pole as the opposite surface of the permanent magnet rings when being electrified, the homopolar repulsion is realized, and the multiband buffer effect can be realized by assisting the supporting spring, on one hand, the buffer effect can be improved, avoid going up the strong effort between mould and the bed die and lead to both harms, guaranteed bed die and the normal life between the mould of going up, on the other hand, can play the buffering effect in, usable magnetic force effect assists supporting spring's buffer power, can reduce supporting spring's load strength, slows down supporting spring's metal fatigue strength.
3. According to the invention, through the designed conductor sleeve and the conductor rod, when the conductor rod is blocked in the descending process of the buffer rod, the buffer rod can retract in the conductor sleeve, on one hand, the retraction length of the buffer rod can be ensured, and on the other hand, the length of the conductor between magnetic induction lines between the permanent magnet seats can be prolonged.
4. According to the invention, through the designed lifting seat, the mold plate, the first toothed plate, the second toothed plate, the gear, the lifting seat and the positioning screw, when the upper mold descends and contacts with the adjusting nut, the second toothed plate can be pushed to descend through the lifting seat, the thrust can be transmitted to the first toothed plate by utilizing the linkage effect among the second magnetic plate, the gear and the first magnetic plate, the mold plate ascends under the pushing of the first toothed plate, and the ascending speed of the mold plate is equal to the descending speed of the upper mold.
5. According to the invention, after the plastic product is qualified through the designed spring piece, the adjusting nut and the positioning screw rod, the upper die is controlled to be upward, then the adjusting nut is pulled to rotate on the surface of the positioning screw rod, and under the combined effect of the torsion and the thread occlusion force, the height of the adjusting nut can be improved, the upper die is controlled to be downward, and the plastic product in the lower die can be ejected through the die plate.
Drawings
FIG. 1 is a schematic perspective view of a high-precision splicing type plastic mold according to the present invention;
FIG. 2 is a schematic perspective view of a connecting seat of the high-precision splicing type plastic mold of the present invention;
FIG. 3 is a schematic perspective view of a lower mold of the high-precision split joint type plastic mold according to the present invention;
fig. 4 is a schematic view of a combination structure of the first toothed plate, the gear and the second toothed plate in the high-precision splicing type plastic mold provided by the invention;
FIG. 5 is a schematic perspective view of a high-precision gear of a split-joint plastic mold according to the present invention;
FIG. 6 is an enlarged schematic structural view of the portion A of the high-precision split joint type plastic mold of the present invention;
FIG. 7 is a schematic cross-sectional view of an elevational view of a cushion collar of a high-precision split-joint plastic mold according to the present invention;
FIG. 8 is a schematic perspective view of a permanent magnet seat in a high-precision assembled plastic mold according to the present invention;
fig. 9 is a schematic cross-sectional view of a front view of a lower mold of the high-precision splicing type plastic mold according to the present invention.
Illustration of the drawings:
1. a base; 2. a buffer sleeve; 3. a buffer rod; 4. a conductor sleeve; 5. a conductor bar; 6. a permanent magnet seat; 7. an electromagnet; 8. a permanent magnet ring; 9. a connecting seat; 10. a lower die; 11. a mold plate; 12. a first toothed plate; 13. a gear; 14. a transfer shaft; 15. a bearing; 16. a side plate seat; 17. a second toothed plate; 18. a lifting seat; 19. positioning a screw rod; 20. a first rigid sleeve; 21. a sliding groove; 22. acupuncturing with a pointed cone; 23. a second rigid sleeve; 24. adjusting the nut; 25. a spring plate; 26. an upper die; 27. a top seat; 28. supporting the spring.
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. 1-9, the present invention provides a technical solution: high-precision splicing type plastic mold, which comprises a base 1, wherein a buffer sleeve 2 is fixedly connected to the top of the base 1, a buffer rod 3 is sleeved in the buffer sleeve 2, one end of the buffer rod 3, which is far away from the base 1, is fixedly connected with the bottom of a connecting seat 9, through the designed buffer sleeve 2, the buffer rod 3, a conductor sleeve 4, a conductor rod 5, a permanent magnet seat 6, an electromagnet 7 and a permanent magnet ring 8, when an upper mold 26 descends into an upper mold 26 and is contacted with slurry in a lower mold 10, a large reaction force and a large impact force can be generated between the upper mold 26 and the lower mold 10, the impact force of the upper mold 26 can be transferred onto the buffer rod 3 through the connecting seat 9, so that the buffer rod 3 retracts in the buffer sleeve 2, the conductor rod 5 and the conductor sleeve 4 descend under the driving of the conductor rod 3, and the conductor rod 5 and the conductor sleeve 4 cut magnetic induction lines between the two permanent magnet seats 6 and generate current in the descending process, the current is used on the electromagnet 7 after being converted by the current conversion circuit, and when the electromagnet 7 is electrified, the current is the same as the magnetic pole of the opposite surface of the permanent magnetic ring 8, homopolar mutual exclusion is realized, and then the supporting spring 28 is assisted, so that a multi-band buffering effect can be realized, on one hand, the buffering effect can be improved, the damage of the upper die 26 and the lower die 10 caused by strong acting force between the upper die 26 and the lower die can be avoided, the normal service life of the lower die 10 and the upper die 26 is ensured, on the other hand, the buffering effect can be played, simultaneously, the buffering force of the supporting spring 28 can be assisted by the magnetic force, the load intensity of the supporting spring 28 can be reduced, the metal fatigue strength of the supporting spring 28 is reduced, the lower die 10 is fixedly connected to the inner side of the connecting seat 9, the die plate 11 is slidably connected to the inner side wall of the lower die 10, and the first toothed plate 12 is fixedly connected to the bottom of the die plate 11, the side surface of the first toothed plate 12 is engaged with a gear 13, one surface of the gear 13, which is far away from the first toothed plate 12, is engaged with a second toothed plate 17, the second toothed plate 17 is positioned in a sliding groove 21, the sliding groove 21 is arranged at the bottom of the lower die 10, a lifting seat 18 is connected in the sliding groove 21 in a sliding manner, the bottom of the lifting seat 18 is fixedly connected with the top of the second toothed plate 17, the second toothed plate 17 can push the second toothed plate 17 to move downwards through the lifting seat 18 when the upper die 26 moves downwards and is in contact with an adjusting nut 24 through the designed lifting seat 18, the thrust can be transmitted to the first toothed plate 12 by utilizing the linkage effect among the second magnetic plate, the gear 13 and the first magnetic plate, the die plate 11 moves upwards under the push of the first toothed plate 12, and the ascending speed of the die plate 11 is equal to the descending speed of the upper die 26, on the one hand, can weaken last mould 26 and result in the thick liquids to spatter outward because of the impact force is great in the twinkling of an eye with the inside thick liquids contact of bed die 10, on the other hand, can make the many-sided direct atress of thick liquids, the density after the thick liquids extrusion is effectively improved, plastic products's quality has effectively been improved, the top fixedly connected with positioning screw 19 of lift seat 18, positioning screw 19's surface cover is equipped with first rigid sleeve 20, first rigid sleeve 20 joint is at the inboard top of groove 21 that slides, positioning screw 19's surface threaded connection has adjusting nut 24, and adjusting nut 24 is located the top of bed die 10.
Specifically, as shown in fig. 7, the bottom fixedly connected with conductor cover 4 of buffer beam 3, conductor pole 5 has been cup jointed in conductor cover 4, and the inboard bottom of buffer cover 2 is provided with permanent magnetism seat 6 corresponding to conductor cover 4 and conductor pole 5's position, the quantity of permanent magnetism seat 6 is two, and the magnetic pole of two permanent magnetism seat 6 opposite faces is opposite, conductor cover 4 and conductor pole 5 through the design, buffer beam 3 is at descending in-process, when conductor pole 5 received the hindrance, can retract the action in conductor cover 4, on the one hand, can be used for guaranteeing buffer beam 3's the length that contracts, on the other hand, can prolong the cutting conductor length between the permanent magnetism seat 6 between the magnetic induction line.
Specifically, as shown in fig. 7, a permanent magnet ring 8 is fixedly connected to the bottom of the buffer rod 3, an electromagnet 7 is arranged at a position corresponding to the permanent magnet ring 8 at the bottom of the inner side of the buffer sleeve 2, the same magnetic pole is arranged on a side close to the permanent magnet ring 8 after the electromagnet 7 is electrified, the top of the permanent magnet seat 6 is fixedly connected to one end close to the support spring 28, and the other end of the support spring 28 is fixedly connected to one end close to the buffer rod 3.
Specifically, as shown in fig. 4, the gear 13 is fixedly connected to the surface of the transfer shaft 14, the bearing 15 is sleeved on the surface of the transfer shaft 14, the bearing 15 is clamped on a surface close to the side plate base 16, and the side surface of the side plate base 16 is fixedly connected to the inner side wall of the lower mold 10.
Specifically, as shown in fig. 6, a spring plate 25 is sleeved on the surface of the positioning screw 19, one end of the spring plate 25 is fixedly connected with the top of the lower mold 10, the other end of the spring plate 25 is overlapped with the bottom of the adjusting nut 24, after the plastic product is fixed, the upper mold 26 is controlled to move upwards, then the adjusting nut 24 is shifted to rotate on the surface of the positioning screw 19, under the combined effect of the torsion and the thread engaging force, the height of the adjusting nut 24 can be increased, the upper mold 26 is controlled to move downwards, and the plastic product in the lower mold 10 can be ejected out through the mold plate 11.
Specifically, as shown in fig. 1, an upper mold 26 is disposed above the lower mold 10, and a top seat 27 is fixedly connected to a surface of the upper mold 26 away from the lower mold 10.
Specifically, as shown in fig. 1, a pointed prick 22 is fixedly connected to the top end of the positioning screw 19, and a second rigid sleeve 23 is clamped to the top of the top seat 27 at a position corresponding to the pointed prick 22.
Specifically, as shown in fig. 1, the number of the buffer sleeves 2 is four, the four buffer sleeves 2 are uniformly distributed at four corners of the top of the base 1, and the bottom of the base 1 is fixedly connected with a rubber pad.
Specifically, as shown in fig. 1, the inner diameters of the first rigid sleeve 20 and the second rigid sleeve 23 are the same, and the second rigid sleeve 23 and the first rigid sleeve 20 are both members made of stainless steel material.
Specifically, as shown in fig. 1, the slide groove 21 and the elevator base 18 have the same cross-sectional shape in plan view, and the outer diameter of the elevator base 18 is matched with the inner diameter of the slide groove 21.
The working principle is as follows: when the upper die 26 descends and contacts with the adjusting nut 24, the second toothed plate 17 is pushed to descend through the lifting seat 18, the thrust can be transmitted to the first toothed plate 12 by utilizing the linkage effect among the second magnetic plate, the gear 13 and the first magnetic plate, the die plate 11 ascends under the pushing of the first toothed plate 12, the ascending speed of the die plate 11 is equal to the descending speed of the upper die 26, on one hand, the phenomenon that slurry splashes outwards due to larger impact force when the upper die 26 contacts with the slurry in the lower die 10 can be weakened, on the other hand, the slurry can be directly stressed in multiple aspects, the density after the slurry is extruded and formed is effectively improved, the quality of a plastic product is effectively improved, when the upper die 26 descends to contact with the slurry in the lower die 10, larger impact force and reaction force can be generated between the upper die 26 and the lower die 10, the upper die 26 can transfer impact force to the buffer rod 3 through the connecting seat 9, so that the buffer rod 3 retracts in the buffer sleeve 2, the conductor rod 5 and the conductor sleeve 4 move downwards under the driving of the buffer rod 3, the conductor rod 5 and the conductor sleeve 4 cut a magnetic induction line between the two permanent magnet seats 6 in the descending process and generate current, the current is used on the electromagnet 7 after being converted by the current conversion circuit, and because the electromagnet 7 has the same magnetic pole with the opposite surface of the permanent magnet ring 8 and the homopolar mutual exclusion when being electrified, the multiband buffer effect can be realized by being assisted by the supporting spring 28, on one hand, the buffer effect can be improved, the damage of the upper die 26 and the lower die 10 caused by strong acting force between the upper die 26 and the lower die 10 can be avoided, the normal service lives of the lower die 10 and the upper die 26 can be ensured, on the other hand, the buffer effect can be played, and simultaneously, the buffer force of the supporting spring 28 can be assisted by the magnetic force, the load strength of the supporting spring 28 can be reduced, the metal fatigue strength of the supporting spring 28 is relieved, after the plastic product is qualified, the upper die 26 is controlled to move upwards, then the adjusting nut 24 is pulled to rotate on the surface of the positioning screw rod 19, under the combined action effect of the torsion and the thread engaging force, the height of the adjusting nut 24 can be improved, the upper die 26 is controlled to move downwards, and the plastic product in the lower die 10 can be ejected out through the die plate 11.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. High-precision splicing type plastic mold comprises a base (1) and is characterized in that a buffering sleeve (2) is fixedly connected to the top of the base (1), a buffering rod (3) is sleeved in the buffering sleeve (2), one end of the buffering rod (3) deviating from the base (1) is fixedly connected with the bottom of a connecting seat (9), a lower mold (10) is fixedly connected to the inner side of the connecting seat (9), a mold plate (11) is slidably connected to the inner side wall of the lower mold (10), a first toothed plate (12) is fixedly connected to the bottom of the mold plate (11), a gear (13) is meshed with the side face of the first toothed plate (12), a second toothed plate (17) is meshed with the surface of the gear (13) deviating from the first toothed plate (12), the second toothed plate (17) is located in a sliding groove (21), and the sliding groove (21) is arranged at the bottom of the lower mold (10), the improved die is characterized in that a lifting seat (18) is connected in the sliding groove (21) in a sliding mode, the bottom of the lifting seat (18) is fixedly connected with the top of a second toothed plate (17), a positioning screw (19) is fixedly connected to the top of the lifting seat (18), a first rigid sleeve (20) is sleeved on the surface of the positioning screw (19), the first rigid sleeve (20) is connected to the top of the inner side of the sliding groove (21) in a clamping mode, an adjusting nut (24) is connected to the surface of the positioning screw (19) in a threaded mode, and the adjusting nut (24) is located above the lower die (10).
2. The splicing type plastic mold with high precision according to claim 1, wherein the bottom of the buffer rod (3) is fixedly connected with a conductor sleeve (4), a conductor rod (5) is sleeved in the conductor sleeve (4), and the bottom of the inner side of the buffer sleeve (2) is provided with two permanent magnet seats (6) corresponding to the conductor sleeve (4) and the conductor rod (5), the number of the permanent magnet seats (6) is two, and the magnetic poles of the opposite surfaces of the two permanent magnet seats (6) are opposite, and when the upper mold (26) descends to contact with the slurry in the lower mold (10), a large impact force and a large reaction force are generated between the upper mold (26) and the lower mold (10) through the designed buffer sleeve (2), the buffer rod (3), the conductor sleeve (4), the conductor rod (5), the permanent magnet seat (6), the electromagnet (7) and the permanent magnet ring (8), go up mould (26) accessible connecting seat (9) with impact force transfer to on buffer beam (3), make buffer beam (3) retract the action in buffer sleeve (2), conductor pole (5) and conductor cover (4) are down under the drive of buffer beam (3), and conductor pole (5) and conductor cover (4) are down in-process cutting the magnetic induction line between two permanent magnet seat (6) and producing electric current, this electric current is used for on electro-magnet (7) after the conversion treatment of current conversion circuit, and because electro-magnet (7) when circular telegram, it is the same with the magnetic pole of permanent magnet ring (8) opposite face, homopolar mutual exclusion is with supporting spring (28), can realize the buffering of multifrequency section with improvement buffering effect, can reduce the load strength of supporting spring (28) simultaneously, slow down the metal fatigue strength of supporting spring (28).
3. The high-precision splicing type plastic mold according to claim 2, wherein a permanent magnet ring (8) is fixedly connected to the bottom of the buffer rod (3), an electromagnet (7) is arranged at a position, corresponding to the permanent magnet ring (8), of the bottom of the inner side of the buffer sleeve (2), the electromagnet (7) is electrified to have the same magnetic pole with one side close to the permanent magnet ring (8), the top of the permanent magnet seat (6) is fixedly connected with one end close to a support spring (28), the other end of the support spring (28) is fixedly connected with one end close to the buffer rod (3), and when the upper mold (26) moves downwards and contacts with the adjusting nut (24), the second toothed plate (17) is pushed downwards through the lifting seat (18) by the designed lifting seat (18), utilize the second magnetic sheet, gear (13) and the linkage effect between the first magnetic sheet three, alright transmit thrust to first pinion rack (12) on, under the promotion of first pinion rack (12), mould board (11) go upward, and the speed of going upward of mould board (11) equals with the speed of going downward of last mould (26) size, and then can weaken last mould (26) and lead to thick liquids to spatter outward because of the impact force is great in the twinkling of an eye with the inside thick liquids contact of bed die (10), and can make the many-sided direct atress of thick liquids, the density after the thick liquids extrusion has effectively been improved.
4. The splicing type plastic mold with high precision according to claim 2, wherein the gear (13) is fixedly connected to the surface of the transfer shaft (14), the surface of the transfer shaft (14) is sleeved with a bearing (15), the bearing (15) is clamped on a surface close to the side plate seat (16), and the side surface of the side plate seat (16) is fixedly connected with the inner side wall of the lower mold (10).
5. The splicing type plastic mold with high precision according to claim 4, wherein a spring leaf (25) is sleeved on the surface of the positioning screw (19), one end of the spring leaf (25) is fixedly connected with the top of the lower mold (10), the other end of the spring leaf (25) is overlapped with the bottom of the adjusting nut (24), the upper mold (26) is controlled to move upwards after the plastic product is fixed through the designed spring leaf (25), adjusting nut (24) and positioning screw (19), the adjusting nut (24) is pulled to rotate on the surface of the positioning screw (19), and under the combined action of torsion and thread engaging force, the height of the adjusting nut (24) can be increased, the upper mold (26) is controlled to move downwards, and the plastic product in the lower mold (10) can be ejected through the mold plate (11).
6. The splicing type plastic mold with high precision according to claim 2, wherein an upper mold (26) is disposed above the lower mold (10), and a top seat (27) is fixedly connected to a surface of the upper mold (26) away from the lower mold (10).
7. The splicing type plastic mold with high precision according to claim 6, wherein a pointed prick (22) is fixedly connected to the top end of the positioning screw (19), and a second rigid sleeve (23) is clamped on the top of the top seat (27) corresponding to the pointed prick (22).
8. The splicing type plastic mold with high precision according to claim 7, wherein the number of the buffer sleeves (2) is four, the four buffer sleeves (2) are evenly distributed at four corners of the top of the base (1), and a rubber pad is fixedly connected to the bottom of the base (1).
9. The splicing type plastic mold with high precision as claimed in claim 2, wherein the first rigid sleeve (20) and the second rigid sleeve (23) have the same inner diameter, and the second rigid sleeve (23) and the first rigid sleeve (20) are both made of stainless steel.
10. The splicing type plastic mold with high precision according to claim 9, wherein the sliding groove (21) and the lifting seat (18) have the same cross-sectional shape in plan view, and the outer diameter of the lifting seat (18) is matched with the inner diameter of the sliding groove (21).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114800962A (en) * | 2022-01-20 | 2022-07-29 | 赵夹 | Prevent displacement plastic mould with stably place mechanism |
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| CN208773932U (en) * | 2018-09-11 | 2019-04-23 | 莆田市城厢区恒鑫鞋材有限公司 | A kind of mold for PU foaming shoe material |
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