CN117484775A

CN117484775A - Electromagnetic dynamic plasticizing mold for auto-parts production

Info

Publication number: CN117484775A
Application number: CN202311392563.5A
Authority: CN
Inventors: 金媛; 龚飞
Original assignee: Dongguan Tongjie Precision Mould Co ltd
Current assignee: Dongguan Tongjie Precision Mould Co ltd
Priority date: 2023-10-25
Filing date: 2023-10-25
Publication date: 2024-02-02

Abstract

The invention relates to the technical field of injection molding, in particular to an electromagnetic dynamic plasticizing mold for automobile accessory production, which comprises a bracket, a feeding mechanism and a forming mechanism, wherein the forming mechanism is arranged at the lower end of the inside of the bracket, the feeding mechanism is arranged above the forming mechanism, and the feeding mechanism adopts electromagnetic dynamic plasticizing extrusion equipment.

Description

Electromagnetic dynamic plasticizing mold for auto-parts production

Technical Field

The invention relates to the technical field of injection molding, in particular to an electromagnetic dynamic plasticizing mold for automobile part production.

Background

In the automobile manufacturing process, a plurality of important components and accessories need to be processed and manufactured by using a mold, particularly some plastic accessories, and the flow and shape of plastic melt can be accurately controlled by using an injection mold, so that high-precision and high-quality automobile accessories are manufactured.

However, the existing automobile parts are usually provided with heating components outside screw conveying equipment in the production process, and plastics need longer thermal mechanical process, so that the automobile parts have the defects of low energy utilization rate, high energy consumption, high noise and the like; in addition, when the existing mould for producing the automobile parts is produced, molten plastics often remain in the pouring channel, and after the work is finished, the molten plastics often solidify in the pouring channel and become a whole with the automobile parts, so that materials are wasted, and the subsequent manual treatment of the automobile parts is not facilitated; finally, the existing automobile part production mould basically uses the ejector rod to eject the formed automobile part after the working is finished, but if the gap between the ejector rod and the mould is too large, material leakage occurs, if the gap is too small, after the forming is finished, the ejector rod is easy to be blocked due to untimely cooling, and after long-time working, the ejector rod can generate abrasion phenomenon, the existing automobile part usually needs to be overhauled at regular time when in injection production, and whether the gap between the ejector rod and the mould is qualified or not is judged in time.

Disclosure of Invention

The invention aims to provide an electromagnetic dynamic plasticizing mold for automobile part production, which aims to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the electromagnetic dynamic plasticizing mold for automobile part production comprises a bracket, a feeding mechanism and a forming mechanism, wherein the forming mechanism is arranged at the lower end of the inside of the bracket, the feeding mechanism is arranged above the forming mechanism, the feeding mechanism is electromagnetic dynamic plasticizing extrusion equipment, compared with traditional extrusion equipment, the electromagnetic dynamic plasticizing extrusion equipment adopts an electromagnetic energy direct transduction mode, plastic electromagnetic vibration field plasticizes extrusion under the action of plastic electromagnetic vibration field, the whole working process basically does not need external heating, the electromagnetic dynamic plasticizing mold has the advantages of low energy consumption, low noise and the like, the forming mechanism comprises a movable mold base, a fixed mold base and a base, the movable mold base and the base are respectively arranged at the upper end and the lower end of the fixed mold base, the movable mold base is connected with the top end of the bracket through a lifting plate and a lifting mechanism, the lifting mechanism adopts the prior art, the invention controls the lifting of a movable die holder through the lifting mechanism, a male die is arranged at one end of the movable die holder, which is close to a fixed die holder, a female die is arranged at one end of the fixed die holder, which is close to the movable die holder, a cavity is arranged in the female die, and induction components are arranged at the side ends of the male die and the female die, before molten plastics are injected into the cavity, the female die and the male die are attached through the lifting mechanism, then whether the contact surface between the male die and the female die is worn or not is detected through the induction components, if the contact surface between the male die and the female die is normal, molten plastics are injected into the cavity through the feeding mechanism, if the contact surface between the male die and the female die is abnormal, staff can replace the male die and the female die, and in the working process, if gaps are formed between the male die and the female die which are attached normally originally due to factors such as pressure and temperature, the induction assembly can also play a role in preventing molten plastics from leaking out of the cavity, and finally, the invention is provided with the first cooling groove in the male die and the second cooling groove in the female die, wherein the first cooling groove is connected with an external cooling system through two groups of first cooling pipes, the second cooling groove is connected with the external cooling system through two groups of second cooling pipes, and the molten plastics are formed by the external cooling system, the first cooling groove and the second cooling groove in an accelerating way.

Further, one end of the movable die holder, which is close to the feeding mechanism, is provided with a feed port, the inside of the feed port is provided with a guide pipe, one end of the feeding mechanism, which is close to the forming mechanism, is provided with a guide pipe, the guide pipe stretches into the guide pipe, the bottom end of the guide pipe is provided with a liquid outlet, and the inside of the male die is provided with a pouring slot and a reflux component. Causing solidification of the molten plastic away from the interior region of the feed mechanism.

Further, the sealing assembly comprises a sealing groove, a sealing plate and a first electromagnet, wherein the sealing groove is arranged between the guide cover and the male die, the sealing plate and the first electromagnet are both arranged in the sealing groove, a sliding groove is formed in the inner wall of the sealing groove, a sliding strip is arranged at the outer end of the sealing plate, a second through hole is formed in the middle position of the sealing plate, the sliding strip stretches into the sliding groove, the sliding strip is connected with the sliding groove through a sealing spring, one end, close to the first electromagnet, of the sealing plate is magnetic, and the first electromagnet is used for controlling the movement of the sealing plate.

Further, the reflux component comprises a first through groove, a movable groove, a second through groove and a reflux plate, wherein the movable groove is arranged at the bottom end of the male die, the first through groove is arranged above one end of the movable groove, which is far away from the pouring groove, the second through groove is arranged above one end of the movable groove, which is close to the pouring groove, one end of the first through groove is connected with the movable groove, the other end of the first through groove is connected with the second through groove through an opening and closing channel, an opening and closing block is arranged in the opening and closing channel, the opening and closing block is connected with the opening and closing channel through an opening and closing spring, the reflux plate is arranged in the movable groove, balance springs are arranged at the two ends of the reflux plate, the reflux plate is connected with the movable groove through two groups of balance springs, and the stiffness coefficient of the opening and closing spring is larger than that of the two groups of balance springs, the invention discloses a movable trough, a baffle plate is arranged at one end of the movable trough far away from a first through trough, a first through hole is arranged at the middle position of the backflow plate, a first liquid discharging hole and a second liquid discharging hole are arranged at one end of the backflow plate far away from the baffle plate, and the first liquid discharging hole is communicated with the second liquid discharging hole. The reflux plate moves towards the direction close to the stop block, when the reflux plate contacts with the stop block, the first liquid drain hole is aligned with the pouring groove, the second liquid drain hole is aligned with the second through groove, at the moment, the air pump continuously conveys air into the first through groove, the air pump can not continuously move because the reflux plate is blocked by the stop block, the air input into the first through groove can extrude the opening and closing block, and finally the opening and closing block can overcome the blocking of the opening and closing spring to move, so that the first through groove is communicated with the second through groove, the air input into the first through groove enters the second through groove, because the first liquid discharge hole is aligned with the pouring slot, the second liquid discharge hole is aligned with the second through slot, and the first liquid discharge hole is communicated with the second liquid discharge hole, when the air pump continuously inputs air into the first through slot, the molten plastic retained in the pouring slot can flow back into the guide pipe and the guide cover under the action of air pressure, so that the molten plastic is prevented from being solidified in the pouring slot, the waste of raw materials is reduced, and finally, the air inlet end of the air pump can be provided with a filtering component according to the requirement, and the molten plastic is prevented from being polluted by impurities contained in the external environment.

Further, the inside of the female die is provided with a cavity, the induction assembly comprises an air storage groove, an induction groove, a second electromagnet and a detection groove, the air storage groove is arranged at one end of the male die, which is far away from the pouring groove, the induction groove is arranged at one end of the male die, which is close to the pouring groove, the second electromagnet is arranged at one end of the female die, which is far away from the cavity, the detection groove is arranged at one end of the female die, which is close to the cavity, the second electromagnet is aligned with the air storage groove, the detection groove is aligned with the induction groove, the upper end of the air storage groove is connected with the upper end of the induction groove, an induction block is arranged in the air storage groove, the induction block is provided with magnetism, the induction block is connected with the air storage groove through a reset spring, a first piezoelectric plate is arranged in the detection groove, the female die and the male die are attached through the lifting mechanism before molten plastic is injected into the cavity, then a second electromagnet is started, the gas in the gas storage groove is extruded by the sensing block through the second electromagnet, finally the gas in the gas storage groove can enter the sensing groove, the air pressure in the sensing groove is detected through the first piezoelectric sheet, when the magnetic field generated by the second electromagnet is fixed, the air pressure in the sensing groove can be a fixed value, if the air pressure in the sensing groove is found to change at a certain moment, the sealing performance of the contact surface between the female die and the male die is judged to be damaged, the female die and the male die are required to be replaced or maintained, if the sealing performance of the contact surface between the female die and the male die is found to be damaged in the working process, the air pressure in the sensing groove can be improved through increasing the magnetic field generated by the second electromagnet, the flow of molten plastics is blocked through the air pressure in the sensing groove, the working performance is ensured to be normally carried out, and safety accidents are avoided.

Furthermore, the male die and the movable die holder are fastened and connected through a plurality of groups of first screws, the female die and the fixed die holder are fastened and connected through a plurality of groups of second screws, and if the contact surface between the male die and the female die is abnormal, a worker can detach the male die and the female die which are in use by screwing the first screws and the second screws.

Further, the lower extreme of cover half seat is provided with the lift groove, the one end that the die is close to the lift groove is provided with the ring channel, the one end that the inside of lift groove is close to the die is provided with the ejector pin, the one end of ejector pin is located the lift inslot, the other end of ejector pin inserts in the ring channel, the one end that the inside of lift groove kept away from the die is provided with the movable rod, the inside of base is provided with the movable seat, the one end that the movable rod stretches out the lift groove is connected with the movable seat fastening, the one end that the lift groove kept away from the ring channel is connected with the ring channel through the UNICOM groove, the lift groove is close to being provided with the second piezoelectric plate on the one end inner wall of UNICOM groove, the below of base still is provided with the cylinder, through cylinder drive movable seat elevating movement, before the work of moulding plastics at every time, through cylinder drive movable rod and ejector pin move down in the time, the gas in the lift groove can get into the ring channel along the UNICOM inslot, if clearance between ejector pin and the die is too big, then the gas in the lift groove will leak easily, the second piezoelectric plate receives the atmospheric pressure, if the clearance between ejector pin and the die can be very little leak because of the second piezoelectric plate is very little, and the wearing and tearing can take place because the very little in the very little gap between the second piezoelectric plate and the pressure can leak the first and the difficult time can take place.

Furthermore, most substances have the phenomena of thermal expansion and cold contraction, so the invention is provided with the refrigerating sheets on the inner walls of the lifting groove and the annular groove, the ejector rod is made of metal materials so as to facilitate heat dissipation, if the gap between the ejector rod and the female die is too small, the ejector rod can not be cooled in time after injection molding is finished, the phenomenon of locking between the ejector rod and the female die can be easily generated, the cooling of the ejector rod can be accelerated after the injection molding is finished through the refrigerating sheets, and the occurrence of the phenomenon of locking is reduced.

Compared with the prior art, the invention has the following beneficial effects: compared with the existing die provided with electromagnetic dynamic plasticizing extrusion equipment, the electromagnetic dynamic plasticizing extrusion equipment adopts an electromagnetic energy direct transduction mode, plastic is plasticized and extruded under the action of an electromagnetic vibration field, and the electromagnetic dynamic plasticizing extrusion equipment basically does not need external heating in the whole working process, has the advantages of low energy consumption, low noise and the like, and is further provided with a reflux component and a sealing component, when the injection molding work is performed, the molten plastic retained in a pouring slot can be extruded into a guide pipe and a guide cover through the reflux component, so that the waste of raw materials is reduced, the subsequent labor intensity is reduced, if the contact surface between a male die and a female die is suddenly found to be worn at a certain moment, the sealing component can timely obstruct the molten plastic in the guide pipe and the guide cover from flowing downwards, the male die and the female die can be replaced without closing a feeding mechanism, so that the maintenance efficiency is improved, the guide pipe is heated through the induction coil, the molten plastic in the guide pipe and the guide cover is always in a molten state, the overlong maintenance time is avoided, the molten plastic in the inner area of a feeding mechanism is solidified, the induction component has the functions of detecting the pre-tightness, and the sealing function is prevented from being leaked to the original cavity before the male die and the sealing component is normally contacted with the plastic in the injection molding cavity, and the sealing cavity is normally detected, and the temperature is leaked between the male die and the cavity is normally, and the plastic is prevented from being leaked out of the cavity through the sealing component, finally, the movable rod and the ejector rod are driven to move downwards by the air cylinder, so that the air in the lifting groove can be compressed into the annular groove, and then whether the gap between the ejector rod and the female die is unqualified due to abrasion or not is judged by detecting the electric signal output by the second piezoelectric sheet, so that the phenomena of leakage of molten plastic and the like in the subsequent injection molding process are avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the forming mechanism of the present invention;

FIG. 3 is a cross-sectional view of the molding mechanism of the present invention;

FIG. 4 is a schematic view of the internal structure of the movable mold base of the present invention;

fig. 5 is a schematic view of the internal structure of the male die of the present invention;

FIG. 6 is a schematic diagram of a reflow plate structure of the present invention;

FIG. 7 is a schematic view of the seal plate structure of the present invention;

FIG. 8 is a schematic view of the internal structure of the stationary mold base of the present invention;

FIG. 9 is a schematic view of the structure of portion A of FIG. 8 in accordance with the present invention;

FIG. 10 is a schematic diagram of the combination of a male die and a female die of the present invention;

fig. 11 is a schematic view of the structure of the portion B in fig. 10 according to the present invention.

In the figure: 1-bracket, 2-feeding mechanism, 21-flow guide pipe, 3-lifting plate, 4-forming mechanism, 41-movable die holder, 411-feeding port, 412-first cooling pipe, 413-male die, 4131-pouring slot, 4132-first cooling slot, 4133-gas storage slot, 4134-sensing slot, 4135-first through slot, 4136-opening and closing block, 4137-movable slot, 41371-block, 4138-second through slot, 4139-backflow plate, 41391-first through hole, 41392-first liquid discharge hole, 41393-second liquid discharge hole, 414-air pump, 415-air guide slot, 416-air guide cover, 417-sealing plate, 4171-second through hole, 418-first electromagnet, 42-fixed die holder, 421-second cooling pipe, 422-female die, 4221-second cooling slot, 4222-second electromagnet, 4223-annular slot, 4224-detection slot, 423-lifting slot, 43-base, 431-movable seat, 432-movable rod, 4321-movable rod.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-4 and 8, the electromagnetic dynamic plasticizing mold for producing automobile parts comprises a bracket 1, a feeding mechanism 2 and a forming mechanism 4, wherein the forming mechanism 4 is arranged at the lower end of the inner part of the bracket 1, the feeding mechanism 2 is arranged above the forming mechanism 4, the feeding mechanism 2 adopts electromagnetic dynamic plasticizing extrusion equipment, compared with the traditional extrusion equipment, the electromagnetic dynamic plasticizing extrusion equipment adopts electromagnetic energy direct conversion mode, the electromagnetic dynamic plasticizing extrusion equipment plasticizes and extrudes under the action of electromagnetic vibration field of plastic, the whole working process basically does not need external heating, has the advantages of low energy consumption, low noise and the like, the forming mechanism 4 comprises a movable mold seat 41, a fixed mold seat 42 and a base 43, the movable mold seat 41 and the base 43 are respectively arranged at the upper end and the lower end of the fixed mold seat 42, the movable mold seat 41 is connected with the top end of the bracket 1 through a lifting plate 3 and a lifting mechanism, the lifting mechanism adopts the prior art, the lifting mechanism is used for controlling the lifting of the movable die holder 41, the male die 413 is arranged at one end of the movable die holder 41, which is close to the fixed die holder 42, the female die 422 is arranged at one end of the fixed die holder 42, which is close to the movable die holder 41, the female die 422 is internally provided with a cavity, and the side ends of the male die 413 and the female die 422 are provided with induction components, before molten plastics are injected into the cavity, the female die 422 and the male die 413 are attached by the lifting mechanism, then the induction components are used for detecting whether the contact surface between the male die 413 and the female die 422 is worn, if the contact surface between the male die 413 and the female die 422 is normal, molten plastics are injected into the cavity by the feeding mechanism 2, if the contact surface between the male die 413 and the female die 422 is abnormal, the male die 413 and the female die 422 can be replaced by staff in the working process, if the contact surface between the male die 413 and the female die 422 is damaged due to factors such as pressure and temperature, the gap between the male die 413 and the female die 422 which are normally attached originally is caused, so that the induction component can also play a role in preventing molten plastics from leaking out of the cavity, finally, the invention is provided with the first cooling groove 4132 in the male die 413, the second cooling groove 4221 in the female die 422, the first cooling groove 4132 is connected with an external cooling system through two groups of first cooling pipes 412, the second cooling groove 4221 is connected with the external cooling system through two groups of second cooling pipes 421, and the molten plastics are formed by the external cooling system, the first cooling groove 4132 and the second cooling groove 4221 in an accelerating mode.

As shown in fig. 2-4, a feed inlet 411 is arranged at one end of a movable die holder 41 near a feed mechanism 2, a guide tube 21 is arranged at one end of the feed mechanism 2 near a forming mechanism 4, the guide tube 21 stretches into the guide tube 416, a liquid outlet hole is arranged at the bottom end of the guide tube 416, a pouring slot 4131 and a backflow component are arranged in a male die 413, during injection molding operation, molten plastic discharged by the feed mechanism 2 flows into the guide tube 21 and then enters a cavity along the liquid outlet hole of the guide tube 416 and the pouring slot 4131, in order to avoid that part of the molten plastic stays in the pouring slot 4131 to be cooled, and products need to be treated secondarily later, therefore, the invention is provided with the backflow component, the molten plastic staying in the pouring slot 4131 can be extruded into the guide tube 21 and the guide tube 416 through the backflow component, the invention reduces the waste of raw materials and the subsequent labor intensity, in addition, the invention is also provided with a sealing component, the liquid outlet hole is connected with the pouring groove 4131 through the sealing component, in the injection molding process, the injection molding is usually continuously carried out, if the contact surface between the male die 413 and the female die 422 is suddenly found to be worn at a certain moment, the invention can timely prevent the molten plastics in the guide tube 21 and the guide cover 416 from flowing downwards through the sealing component, the male die 413 and the female die 422 can be replaced without closing the feeding mechanism 2, thereby improving the maintenance efficiency, the guide cover 416 is internally provided with an induction coil, the induction coil is connected with an external power supply, the guide tube 21 is made of magnetically conductive metal, the guide tube 21 is heated through the induction coil, so that the molten plastics in the guide tube 21 and the guide cover 416 are always in a molten state, the maintenance time is avoided to be overlong, causing solidification of the molten plastic away from the interior region of the feed mechanism 2.

As shown in fig. 4 and 7, the sealing assembly comprises a sealing groove, a sealing plate 417 and a first electromagnet 418, wherein the sealing groove is arranged between a guide cover 416 and a male die 413, the sealing plate 417 and the first electromagnet 418 are both arranged in the sealing groove, a sliding groove is arranged on the inner wall of the sealing groove, a sliding bar is arranged at the outer end of the sealing plate 417, a second through hole 4171 is arranged at the middle position of the sealing plate 417, the sliding bar stretches into the sliding groove, the sliding bar is connected with the sliding groove through a sealing spring, one end of the sealing plate 417, which is close to the first electromagnet 418, is magnetic.

As shown in fig. 3 to 6, the reflow assembly includes a first through groove 4135, a movable groove 4137, a second through groove 4138, and a reflow plate 4139, the movable groove 4137 is disposed at the inner bottom end of the male mold 413, the first through groove 4135 is disposed above one end of the movable groove 4137 away from the casting groove 4131, the second through groove 4138 is disposed above one end of the movable groove 4137 near the casting groove 4131, one end of the first through groove 4135 is connected with the movable groove 4137, the other end of the first through groove 4135 is connected with the second through groove 4138 through an opening and closing passage, an opening and closing block 4136 is disposed in the opening and closing passage, the opening and closing block 4136 is connected with the opening and closing passage through an opening and closing spring, the reflow plate 4139 is disposed inside the movable groove 4137, both ends of the reflow plate 4139 are provided with balance springs, the reflow plate 4139 is connected with the movable groove 4137 through two sets of balance springs, the stiffness coefficient of the opening and closing spring is larger than that of the two sets of balance springs, in the invention, when molten plastic is injected into a cavity, the first through hole 41391 is aligned with a pouring groove 4131, meanwhile, a group of extrusion force is applied to the flow guide pipe 21 and the flow guide cover 416 by the feeding mechanism 2 so as to facilitate the flow of the molten plastic, an air pump 414 is arranged at the outer side of the movable die holder 41, the air pump 414 is connected with the first through groove 4135 through the air guide groove 415, the extrusion force applied by the feeding mechanism 2 is closed after the molten plastic is injected, a group of air is conveyed into the first through groove 4135 through the air pump 414 and the air guide groove 415, and the stiffness coefficient of the opening and closing springs is larger than that of two groups of balance springs, therefore, under the action of the air pressure, the reflux plate 4139 will move towards the direction approaching the block 41371, when the reflux plate 4139 contacts the block 41371, the first drain hole 41392 is aligned with the pouring slot 4131, the second drain hole 41393 is aligned with the second drain hole 4138, at this time, the air pump 414 continues to deliver air into the first through slot 4135, because the reflux plate 4139 is blocked by the block 41371 and cannot move continuously, the air input into the first through slot 4135 by the air pump 414 can squeeze the opening and closing block 4136, and finally the opening and closing block 4136 can move against the blocking of the opening and closing spring, so that the air input into the first through slot 4135 and the second through slot 4138 by the air pump 414 enters into the second through slot 4138, and because the first drain hole 41392 is aligned with the pouring slot 4131, the second drain hole 41393 is aligned with the second through slot 4138, and the first drain hole 41392 and the second drain hole 41393 are simultaneously communicated, therefore, when the air pump 414 continues to deliver air into the first through slot 4135, the air pump 414 can flow into the pouring slot 4135, the air pump can flow in a way, the air inlet pipe can be prevented from being wasted in the air pressure, and the air inlet and the air pump can be prevented from flowing into the molten material tank 4131, and the molten material can be prevented from being polluted by the air inlet and the air inlet channel of the molten material, and the molten material in the air guide part, and the air-flow-guide device, and the invention, and the air-flow channel can be set up and the air-cooled down and the air-cooled.

As shown in fig. 5, 8, and 10-11, a cavity is provided in the female die 422, the sensing assembly includes a gas storage groove 4133, a sensing groove 4134, a second electromagnet 4222, and a sensing groove 4224, the gas storage groove 4133 is provided at an end of the male die 413 away from the pouring groove 4131, the sensing groove 4134 is provided at an end of the male die 413 close to the pouring groove 4131, the second electromagnet 4222 is provided at an end of the female die 422 away from the cavity, the sensing groove 4224 is provided at an end of the female die 422 close to the cavity, the second electromagnet 4222 is aligned with the gas storage groove 4133, the sensing groove 4224 is aligned with the sensing groove 4134, an upper end of the gas storage groove 4133 is connected with an upper end of the sensing groove 4134, a sensing block having magnetism is provided in the gas storage groove 4133, the sensing block is connected with the gas storage groove 4133 through a reset spring, and a first piezoelectric plate is provided in the sensing groove 4224 before molten plastic is injected into the cavity, the female die 422 and the male die 413 are attached by the lifting mechanism, the second electromagnet 4222 is started, the sensing block extrudes gas in the gas storage groove 4133 by the second electromagnet 4222, finally the gas in the gas storage groove 4133 enters the sensing groove 4134, the air pressure in the sensing groove 4134 is detected by the first piezoelectric plate, when the magnetic field generated by the second electromagnet 4222 is fixed, the air pressure in the sensing groove 4134 should be a fixed value, if the air pressure in the sensing groove 4134 is found to change at a certain moment, the tightness of the contact surface between the female die 422 and the male die 413 is judged to be broken, the female die 422 and the male die 413 need to be replaced or maintained, if the tightness of the contact surface between the female die 422 and the male die 413 is found to be broken in the working process, the air pressure in the sensing groove 4134 can be improved by increasing the magnetic field generated by the second electromagnet 4222, the flow of molten plastic is blocked by the air pressure in the sensing groove 4134, ensure the normal operation of the work and avoid the occurrence of safety accidents.

As shown in fig. 3-4 and 8, the male die 413 is fastened and connected with the movable die holder 41 through a plurality of groups of first screws, the female die 422 is fastened and connected with the fixed die holder 42 through a plurality of groups of second screws, if the contact surface between the male die 413 and the female die 422 is abnormal, a worker can detach the male die 413 and the female die 422 which are in use by screwing the first screws and the second screws, and the male die 413 and the female die 422 can be fixed in a detachable connection mode, so that the purpose of convenient replacement can be achieved.

As shown in fig. 3 and 8-9, the lower end of the fixed die holder 42 is provided with a lifting groove 423, one end of the female die 422 close to the lifting groove 423 is provided with an annular groove 4223, one end of the lifting groove 423 close to the female die 422 is provided with a push rod 4321, one end of the push rod 4321 is positioned in the lifting groove 423, the other end of the push rod 4321 is inserted into the annular groove 4223, one end of the lifting groove 423 far away from the female die 422 is provided with a movable rod 432, the inside of the base 43 is provided with a movable seat 431, one end of the movable rod 432 extending out of the lifting groove 423 is tightly connected with the movable seat 431, one end of the lifting groove 423 far away from the annular groove 4223 is connected with the annular groove 4223 through a communicating groove, one end inner wall of the lifting groove 423 close to the communicating groove is provided with a second piezoelectric sheet, and an air cylinder is arranged below the base 43 and drives the movable seat 431 to move up and down through the air cylinder.

As shown in fig. 9, most of the substances have the phenomena of thermal expansion and cold contraction, so that the inner walls of the lifting groove 423 and the annular groove 4223 are provided with the refrigerating sheets, the ejector rod 4321 is made of metal materials so as to facilitate heat dissipation, if the gap between the ejector rod 4321 and the female die 422 is too small, after injection molding is finished, the ejector rod 4321 cannot be cooled in time, the clamping phenomenon is easy to occur between the ejector rod 4321 and the female die 422, and the cooling of the ejector rod 4321 can be accelerated after the injection molding is finished through the refrigerating sheets, so that the occurrence of the clamping phenomenon is reduced.

The working principle of the invention is as follows: before injection molding, the movable rod 432 and the ejector rod 4321 are driven to move downwards through the air cylinder, at the moment, gas in the lifting groove 423 enters the annular groove 4223 along the communicating groove, whether a gap between the ejector rod 4321 and the female die 422 is unqualified due to abrasion is judged by detecting an electric signal output by the second piezoelectric sheet, phenomena such as molten plastic leakage and the like are avoided in subsequent injection molding, during injection molding, the female die 422 and the male die 413 are attached through the lifting mechanism, then whether the contact surface between the male die 413 and the female die 422 is abraded is detected through the sensing assembly, if the contact surface between the male die 413 and the female die 422 is normal, molten plastic is injected into a cavity through the feeding mechanism 2, if the contact surface between the male die 413 and the female die 422 is abnormal, the working staff can replace the male die 413 and the female die 422, after the molten plastic is injected into the cavity, the air pump 414 is started, the air pump 414 is driven to work, molten plastic retained in the pouring groove 4131 is extruded into the flow guide tube 21 and the flow guide cover 416 through the reflux assembly, waste of raw materials is reduced, finally the external cooling system is started, the first cooling groove 4132 and the second cooling groove 4221 is accelerated, after the molten plastic is finished, the ejector rod 4321 and the movable rod 4321 is driven to move through the lifting mechanism, and the movable rod 4321 is molded, and the plastic part is separated, and the movable rod is pushed out through the lifting mechanism for molding the automobile part 4321.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electromagnetic dynamic plasticizing mold for automobile part production, which is characterized in that: the electromagnetic dynamic plasticizing mold comprises a support (1), a feeding mechanism (2) and a forming mechanism (4), wherein the forming mechanism (4) is arranged at the lower end of the inside of the support (1), the feeding mechanism (2) is arranged above the forming mechanism (4), the feeding mechanism (2) is an electromagnetic dynamic plasticizing extrusion device, the forming mechanism (4) comprises a movable mold base (41), a fixed mold base (42) and a base (43), the movable mold base (41) and the base (43) are respectively arranged at the upper end and the lower end of the fixed mold base (42), a male mold (413) is arranged at one end, close to the fixed mold base (42), of the movable mold base (41), a female mold (422) is arranged at one end, close to the movable mold base (41), of the fixed mold base (42), an induction component is arranged at the side ends of the male mold (413) and the female mold (422), and the induction component is used for judging the abrasion conditions of the male mold (413) and the female mold (422) and preventing the molten materials from leaking.

2. An electromagnetic dynamic plasticizing mold for producing an automobile part according to claim 1, wherein: the novel plastic injection molding machine is characterized in that a feeding hole (411) is formed in one end, close to a feeding mechanism (2), of the movable die holder (41), a guide pipe (21) is arranged at one end, close to a molding mechanism (4), of the feeding mechanism (2), the guide pipe (21) stretches into the guide pipe (416), a liquid outlet hole is formed in the bottom end of the guide pipe (416), a pouring groove (4131) and a backflow component are formed in the male die (413), the liquid outlet hole is connected with the pouring groove (4131) through a sealing component, and an induction coil is arranged in the guide pipe (416).

3. An electromagnetic dynamic plasticizing mold for producing an automobile part according to claim 2, wherein: seal assembly includes seal groove, closing plate (417) and first electro-magnet (418), the seal groove sets up between kuppe (416) and terrace die (413), closing plate (417) and first electro-magnet (418) all set up the inside at the seal groove, be provided with the spout on the inner wall of seal groove, the outer end of closing plate (417) is provided with the draw runner, the intermediate position department of closing plate (417) is provided with second through-hole (4171), the draw runner stretches into in the spout, be connected through seal spring between draw runner and the spout, the one end that closing plate (417) is close to first electro-magnet (418) has magnetism.

4. An electromagnetic dynamic plasticizing mold for producing an automobile part according to claim 2, wherein: the reflux assembly comprises a first through groove (4135), a movable groove (4137), a second through groove (4138) and a reflux plate (4139), wherein the movable groove (4137) is arranged at the inner bottom end of the male die (413), the first through groove (4135) and the second through groove (4138) are arranged above the movable groove (4137), one end of the first through groove (4135) is connected with the movable groove (4137), the other end of the first through groove (4135) is connected with the second through groove (4138) through an opening and closing channel, an opening and closing block (4136) is arranged in the opening and closing channel, the opening and closing block (4136) is connected with the opening and closing channel through an opening and closing spring, the reflux plate (4139) is arranged in the movable groove (4137), the reflux plate (4139) is connected with the movable groove (4137) through a balance spring, one end, away from the first through groove (4135), of the movable groove (4137) is provided with a stop block (41371), the middle position of the reflux plate (4139) is provided with a first through hole (41391), one end, away from the stop block (41371), of the reflux plate (4139) is provided with a first liquid discharge hole (41392) and a second liquid discharge hole (41393), the first liquid discharge hole (41392) is communicated with the second liquid discharge hole (41393), the outer side of the movable die holder (41) is provided with an air pump (414), the air pump (414) is connected with the first through groove (4135) through the air guide groove (415).

5. An electromagnetic dynamic plasticizing mold for producing an automobile part according to claim 1, wherein: the inside of die (422) is provided with the die cavity, the response subassembly includes gas storage tank (4133), induction tank (4134), second electro-magnet (4222) and detection groove (4224), gas storage tank (4133) set up the one end of keeping away from pouring tank (4131) in terrace die (413), induction tank (4134) set up the one end that is close to pouring tank (4131) in terrace die (413), second electro-magnet (4222) set up the one end of keeping away from the die cavity in die (422), detection groove (4224) set up the one end that is close to the die cavity in die (422), second electro-magnet (4222) are in alignment with gas storage tank (4133), detection groove (4224) are in alignment with induction tank (4134), the upper end of gas storage tank (4133) is connected with the upper end of induction tank (4134), be provided with the inductor block in gas storage tank (4133), the inductor block has magnetism, the inductor block is connected with gas storage tank (4133) through reset spring, detection groove (4224) is provided with first piezoelectricity piece.

6. The electromagnetic dynamic plasticizing mold for producing automobile parts according to claim 5, wherein: the male die (413) is fixedly connected with the movable die holder (41) through a plurality of groups of first screws, and the female die (422) is fixedly connected with the fixed die holder (42) through a plurality of groups of second screws.

7. An electromagnetic dynamic plasticizing mold for producing an automobile part according to any one of claims 1 to 6, wherein: the lower extreme of cover half seat (42) is provided with lift groove (423), the one end that die (422) is close to lift groove (423) is provided with ring channel (4223), the one end that the inside of lift groove (423) is close to die (422) is provided with ejector pin (4321), the one end of ejector pin (4321) is located lift groove (423), the other end of ejector pin (4321) inserts in ring channel (4223), the one end that die (422) was kept away from to the inside of lift groove (423) is provided with movable rod (432), the inside of base (43) is provided with movable seat (431), the one end that movable rod (432) stretches out lift groove (423) is connected with movable seat (431) fastening, the one end that the ring channel (4223) was kept away from to lift groove (423) is connected with ring channel (4223) through the UNICOM's groove, be provided with the second piezoelectric piece on the one end inner wall that the lift groove (423) is close to the UNICOM groove, the below of base (43) still is provided with the cylinder, through cylinder (431) drive lift motion.

8. The electromagnetic dynamic plasticizing mold for producing an automobile part according to claim 7, wherein: the inner walls of the lifting groove (423) and the annular groove (4223) are respectively provided with a refrigerating piece, and the ejector rod (4321) is made of metal.