CN110039692B - Mold pouring equipment and method capable of realizing three-dimensional patterns - Google Patents

Abstract

The invention provides a mould pouring device and a method capable of realizing three-dimensional patterns, which comprises a feeding system and a molding system, wherein the feeding system comprises a feeding device and a molding system; the feeding system comprises a locking mechanism, the molding system comprises a theme frame, and the locking mechanism is fixed inside the main body frame; the locking mechanism comprises a pressurizing extrusion opening, a core, a locking clamp, an electric cylinder, a locking pin, a contact sensor and a guide pin, the pressurizing extrusion opening is fixedly communicated with the front surface of the locking mechanism, the core is fixed with the pressurizing extrusion opening, and the locking clamp and the locking mechanism are fixed through two ends of the electric cylinder; the invention provides a mold capable of realizing 3D patterns of a product, aiming at the problems of low qualification rate of IML, IMR and common printing, high production cost and potential safety hazard in production, the mold can realize injection molding on the same machine, does not need a post-printing process, and effectively controls the appearance of the product and realizes beautiful appearance of the product.

Description

Mold pouring equipment and method capable of realizing three-dimensional patterns

Technical Field

The invention relates to a die casting device and a die casting method, in particular to a die casting device and a die casting method capable of realizing three-dimensional patterns.

Background

The current science and technology is continuously improved, people no longer only meet the performance requirements of consumer products, and the requirements on the appearance of the products are higher and higher; such as household electrical appliances and functional panels, mobile phone window lenses and housings, washing machine control panels, refrigerator control panels, air conditioner control panels, automobile instrument panels and interior trim, and appearance decorations such as household appliances and the like, not only need high appearance requirements, but also need beautiful patterns and 3D effects;

currently, the IN-mold pattern making can be divided into IN-mold decoration IML (IN-MOLDING LABEL) and IN-mold thermal transfer IMR (IN-MOLDING-ROLLER). And printing after the resin product is molded. For the problems that the prior IML has more main production processes, complicated process, low production yield and is not suitable for mass production,

the resin product presents 2D plane patterns and is not suitable for being made into a complex arc curved surface; IML is mainly a resin appearance surface which is not wear-resistant, easy to wear and not suitable for beauty because of patterns; after the traditional resin product is molded, printing, injection molding and printing are respectively 2 independent workshops, impurities are possibly attached to the surface of the injection molded product in the transportation process, and meanwhile, the environmental requirements and the requirements of workers on the printing workshops are very high; in addition, the common printing process is very complicated, including surface cleaning, ink drying, etc.; meanwhile, the common printing qualification rate is low, so that production waste and industrial garbage are caused;

disclosure of Invention

The invention aims to provide a device and a method for pouring a mold capable of realizing three-dimensional patterns, which are used for innovatively engraving a pattern surface with a 3D effect in the mold by laser and integrally molding through injection to obtain a resin product with beautiful appearance.

In order to solve the technical problems, the invention adopts the technical scheme that: a mould casting device and method capable of realizing three-dimensional patterns comprises a material supply system and a molding system;

the feeding system comprises a locking mechanism, the molding system comprises a theme frame, and the locking mechanism is fixed inside the main body frame;

the locking mechanism comprises a pressurizing extrusion opening, a core, a locking clamp, an electric cylinder, a locking pin, a contact sensor and a guide pin, the pressurizing extrusion opening is fixedly communicated with the front face of the locking mechanism, the core is fixed with the pressurizing extrusion opening, the locking clamp and the locking mechanism are fixed through two ends of the electric cylinder, the locking pin is fixed on the side face of the locking clamp, the contact sensor is also fixed on the side face of the locking clamp, and the guide pin is fixed on the front face of the locking mechanism;

the molding system further comprises a mold, an ejector plate and an ejector block, the ejector plate is embedded in one side of the mold, and the ejector block is connected with the ejector plate in a sliding mode.

Furthermore, feeding system still includes feeder hopper, single screw extrusion system and screw gear, the bottom of feeder hopper fixed communicate in single screw extrusion system's top surface, the gear is fixed single screw extrusion system's right-hand member.

Furthermore, the feeding system further comprises a speed reducer gear, a speed reducer, a coupler and a motor, wherein the speed reducer gear is fixed with the gear through a transmission belt, the speed reducer gear is fixed with the speed reducer through a shaft rod, and the speed reducer and the motor are fixedly connected through the coupler.

Furthermore, the molding system further comprises a main body frame and a slide rail, the slide rail penetrates through the side face of the main body frame, and a sliding groove is formed in the mold and is in sliding connection with the slide rail.

Further, the mould still includes locking groove, heat exchanger, template and air jet, the locking groove is seted up the both sides of mould, the heat exchanger is fixed one side of mould, one side of liftout plate is fixed the bottom of template, the air jet is fixed the heat exchanger with closely laminate between the liftout plate the opposite side of liftout plate.

Further, the template includes exhaust duct, guiding hole, die cavity, the exhaust duct is seted up the side of template, the guiding hole is seted up four positive edges of template department, the die cavity is seted up the positive middle part of template.

Furthermore, the molding system comprises a small air pump, a large air pump, an air cylinder and a collecting box, the small air pump is fixed at the bottom of the main body frame and fixedly communicated with the air jet, the large air pump is fixed at the bottom of the main body frame and fixedly communicated with one end of the air cylinder, the other end of the air cylinder is fixed with one end of the mold, and the collecting box is fixed on the right side of the small air pump.

Further, the method specifically comprises the following steps: 1) putting the working material into a feeding material, heating and dissolving the working material after the working material enters a single-screw extrusion system through a feed hopper, and ensuring that the working material can be smoothly pressurized, injected and molded in the subsequent processing process;

2) the dissolved work material enters a locking mechanism through pressurization and pushing of a single-screw extrusion system, a large-sized air pump fills high-pressure air into an air cylinder after the work material enters the locking mechanism, the air cylinder pushes a mold to enable a template to be attached to the locking mechanism, and the locking mechanism locks the locking mechanism and the mold through a locking pin matched with a locking groove on the mold and a guide pin matched with a guide hole;

3) the working material is extruded into the template through a pressurizing extrusion port, the working material is positioned through a cavity formed by matching between a cavity on the template and a core on a locking mechanism, the working material is cooled and formed through a heat exchanger, and corresponding 3D patterns are carved on the selected cavity or core in advance through laser;

4) after the cooling is finished, the work material is ejected out through the ejection plate on the equipment, a plurality of air nozzles are arranged inside the ejection plate, the air nozzles provide high-pressure gas for ejecting ejection blocks on the ejection plate through a small air pump, and the molding workpieces are ejected out through the ejection blocks and fall into the collection box for collection.

The invention has the advantages and positive effects that: (1) the invention provides a mold capable of realizing 3D patterns of products, which aims at the defects of low qualification rate, high production cost, potential safety hazard of production and environmental pollution of IML, IMR and common printing, and provides the mold capable of realizing the 3D patterns of the products, so that the product qualification rate is improved, the production cost is reduced, the potential safety hazard of production is avoided, the VOC emission is reduced, the atmospheric pollution is reduced, and the contribution force for national pollution control is realized.

(2) The injection molding is realized on the same machine, the post-printing process is not needed, the product appearance is effectively controlled, and the beautiful product appearance is realized.

Drawings

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

FIG. 2 is a front view of the locking mechanism of the present invention

FIG. 3 is a schematic view of the template structure of the present invention

FIG. 4 is a schematic 3D structure of the locking mechanism of the present invention

FIG. 5 is a schematic side sectional view of the form of the present invention

FIG. 6 is a schematic view of the heat exchanger according to the present invention

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

FIG. 8 is a schematic cross-sectional view of the ejector plate and the ejector block of the present invention taken from the front side of the working position

FIG. 9 is a side sectional view of the ejector plate and the ejector block of the present invention

In the figure: 1 feeding system, 1-1 feeding hopper, 1-2 single screw extrusion system, 1-3 locking mechanism, 1-3-1 pressurizing extrusion port, 1-3-11 core, 1-3-2 locking clamp, 1-3-21 electric cylinder, 1-3-22 locking pin, 1-3-23 contact sensor, 1-3-3 guide pin, 1-4 screw gear, 1-5 speed reducer gear, 1-6 speed reducer, 1-7 coupler, 1-8 motor, 2 molding system, 2-1 main body frame, 2-2 slide rail, 2-3 mold, 2-4 locking groove, 2-5 heat exchanger, 2-6 ejector plate, 2-6-1 ejector block, 2-7 mold plate, 2-7-1 exhaust groove, 2-7-2 guide hole, 2-7-3 die cavity, 2-8 small air pump, 2-8-1 air jet, 2-9 large air pump, 2-9-1 cylinder and 2-10 collecting box

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description and accompanying drawings that illustrate the invention.

A can realize the pouring apparatus of the mould of the stereoscopic pattern and method, including the feeding system 1 and mould the system 2;

the feeding system 1 includes a locking mechanism 1-3, the molding system 2 includes a subject frame 2-1, and the locking mechanism 1-3 is fixed inside the body frame 2-1.

The molding system 2 also comprises a mold 2-3, an ejector plate 2-6 and an ejector block 2-6-1, wherein the ejector plate 2-6 is embedded at one side of the mold 2-3, the ejector block 2-6-1 is in sliding connection with the ejector plate 2-6, the ejector block 2-6-1 mainly has the function of ejecting molded products, most devices in the market adopt ejector pins to eject the products, the surface damage of the molded products is easy to cause due to small force application surface of the ejector pins in the working process of the ejector pins, the ejector blocks 2-6-1 uniformly distributed on the ejector plate 2-6 can calculate the distribution positions of the molded workpieces through the matching of computer calculation modules connected externally through the arrangement of the ejector pins 2-6-1, and force is simultaneously applied to extrude the molded workpieces according to the distribution positions, so that the force application is more balanced, the workpiece itself is protected, the dies 2-3 may be single-shot dies or double-shot dies and multi-shot dies, and the feeding system 1 of the present invention needs to be adjusted according to different dies, and in this embodiment, a single-shot die is selected.

The locking mechanism 1-3 comprises a pressurizing extrusion port 1-3-1, a core 1-3-11, a locking clamp 1-3-2, an electric cylinder 1-3-21, a locking pin 1-3-22, a contact sensor 1-3-23 and a guide pin 1-3-3, the pressurizing extrusion port 1-3-1 is fixedly communicated with the front surface of the locking mechanism 1-3, the core 1-3-11 is fixed with the pressurizing extrusion port 1-3-1, the locking clamp 1-3-2 and the locking mechanism 1-3 are fixed through two ends of the electric cylinder 1-3-21, the locking pin 1-3-22 is fixed on the side surface of the locking clamp 1-3-2, the contact sensor 1-3-23 is also fixed on the side surface of the locking clamp 1-3-2, the guide pin 1-3-3 is fixed on the front face of the locking mechanism 1-3, the core 1-3-11 adopts a replaceable structure, the shape of the core can be replaced at any time when different products are met, the locking clamp 1-3-2 has the main function of pressure maintaining, when the pressurizing extrusion port 1-3-1 starts to work, the internal pressure of the die 2-3 is increased, the internal pressure of the die 2-3 is kept at a fixed value through the locking action of the locking clamp 1-3-2 and the locking pin 1-3-22, and the die forming effect is ensured.

The feeding system 1 further comprises a feed hopper 1-1, a single-screw extrusion system 1-2 and a screw gear 1-4, the bottom of the feed hopper 1-1 is fixedly communicated with the top surface of the single-screw extrusion system 1-2, the gear 1-4 is fixed at the right end of the single-screw extrusion system 1-2, a work material is added into the single-screw extrusion system 1-2 through the feed hopper 1-1, the single-screw extrusion system 1-2 mainly functions to provide the heated and melted work material and pressurization for a die, and a power source of the single-screw extrusion system 1-2 is provided through the gear 1-4.

The feeding system 1 further comprises speed reducer gears 1-5, speed reducers 1-6, couplers 1-7 and motors 1-8, the speed reducer gears 1-5 are fixed with the gears 1-4 through transmission belts, the speed reducer gears 1-5 are fixed with the speed reducers 1-6 through shaft rods, the speed reducers 1-6 are fixedly connected with the motors 1-8 through the couplers 1-7, the motors 1-8 transmit force to the speed reducer gears 1-5 through the couplers 1-7, the rotating speed is adjusted through the action of the speed reducers 1-6, then torque is transmitted to the speed reducer gears 1-5, and the force is transmitted to the single-screw extrusion systems 1-2 with 1-4 positions of the gears through the transmission belts to provide power.

The molding system 2 further comprises a main body frame 2-1 and a slide rail 2-2, the slide rail 2-2 penetrates through the side face of the main body frame 2-1, and a sliding groove is formed in the mold 2-3 and is connected with the slide rail 2-2 in a sliding mode.

The mould 2-3 also comprises a locking groove 2-4, a heat exchanger 2-5, a template 2-7 and an air jet 2-8-1, wherein the locking groove 2-4 is arranged at two sides of the mould 2-3, the heat exchanger 2-5 is fixed at one side of the mould 2-3, one side of the ejection plate 2-6 is fixed at the bottom of the template 2-7, the air jet 2-8-1 is fixed between the heat exchanger 2-5 and the ejection plate 2-6 and is tightly attached at the other side of the ejection plate 2-6, the locking groove 2-4 is used for matching with the locking clamp 1-3-2 to lock the mould, the heat exchanger 2-5 can be connected with a refrigeration device to refrigerate the mould 2-3 integrally, ensure the planeness of a moulded workpiece, avoid the deformation of an appearance surface pattern, ensure that the melted workpiece can be cooled and formed quickly after entering the mould 2-3, the template 2-7 is the main part of the molding, the air vent 2-8-1 is a part for providing ejection force for the ejection plate 2-6, the air vent 2-8-1 is provided with a plug, the position of the air vent 2-8-1 corresponds to the ejection block 2-6-1, after the position of the molding workpiece is calculated through the cooperation of an externally connected computer calculation module, the plug on the air vent 2-8-1 at the corresponding position opens the ejected gas to eject the ejection block 2-6-1, and the molding workpiece is ejected.

The template 2-7 comprises an exhaust groove 2-7-1, a guide hole 2-7-2 and a cavity 2-7-3, the exhaust groove 2-7-1 is arranged on the side surface of the template 2-7, the guide holes 2-7-2 are arranged at four corners of the front surface of the template 2-7, the cavity 2-7-3 is arranged in the middle of the front surface of the template 2-7, the exhaust groove 2-7-1 is mainly arranged to avoid product welding lines or air entrapments, so that the appearance pattern of a molded workpiece is more attractive, the position of the mold is confirmed by the guide pins 1-3-3 of the guide holes 2-7-2, a guide system can be additionally arranged, the matching precision of a front mold and a rear mold is ensured, so that the pattern precision of a splicing surface of a 3D pattern surface is ensured, the guide system guide part can be selected from MISUMI and a coiling precision guide part, a cavity 2-7-3 is a position for injecting work materials, the shape and the external pattern of a molded workpiece can be determined by matching the cavity 2-7-3 with a core 1-3-11, and the processed workpiece can be made of resin products, rubber products or die-casting products of magnesium alloy aluminum alloy and appearance products needing the appearance of the products with patterns.

The molding system 2 comprises a small air pump 2-8, a large air pump 2-9, an air cylinder 2-9-1 and a collecting box 2-10, the small air pump 2-8 is fixed at the bottom of a main body frame 2-1 and is fixedly communicated with an air jet 2-8-1, the large air pump 2-9 is fixed at the bottom of the main body frame 2-1 and is fixedly communicated with one end of the air cylinder 2-9-1, the other end of the air cylinder 2-9-1 is fixed with one end of a mold 2-3, the collecting box 2-10 is fixed at the right side of the small air pump 2-8, the small air pump 2-8 mainly provides high-pressure air for the air jet 2-8-1, the large air pump 2-9 provides high-pressure air for the air cylinder 2-9-1 so that the air cylinder 2-9-1 can provide push-pull force, the mould 2-3 and the locking mechanism 1-3 can be tightly attached by pushing the mould 2-3, and then injection molding work can be carried out by matching and fixing the respective structures, and the collecting box 2-10 is mainly used for collecting the molded workpiece pushed out by the air outlet 2-8-1.

The pressurizing extrusion port 1-3-1 analyzes the best glue inlet point through mold flow analysis software, and positions and sizes of a runner and a sprue are reasonably set, so that the injection molding product is uniformly filled, and the influence on the appearance of the product due to pressure maintaining or insufficient filling is avoided.

The specific working flow of the equipment is as follows: 1) putting the working material into a feed hopper 1-1, heating and dissolving the working material after the working material enters a single-screw extrusion system 1-2 through the feed hopper 1-1, and ensuring that the working material can be smoothly pressurized, injected and molded in the subsequent processing process;

2) the dissolved work material is pushed into a locking mechanism 1-3 by the pressurization of a single-screw extrusion system 1-2, the work material enters a locking mechanism 1-3, then a large air pump 2-9 fills high-pressure air into an air cylinder 2-9-1, the air cylinder 2-9-1 pushes a mold 2-3, a template 2-7 is attached to the locking mechanism 1-3, the locking mechanism 1-3 locks the locking mechanism 1-3 and the mold 2-3 through a locking pin 1-3-22 matched with a locking groove 2-4 and a guide pin 1-3-3 matched with a guide hole 2-7-2 on the mold, the integral sealing performance is ensured, the pressure maintaining effect in the processing process is ensured, the equipment ensures that the work material is uniformly filled through reasonable flow passage and sprue design, the pressure maintaining or shrinkage of a molded workpiece is avoided, thereby distorting the appearance pattern surface of the molding workpiece; the equipment is provided with the exhaust groove 2-7-1 near the cavity, so that the product is prevented from generating welding lines or trapping gas;

3) the working material is extruded into the template 2-7 through the pressurizing extrusion port 1-3-1, the working material is positioned through a cavity formed by matching between the cavity 2-7-3 on the template 2-7 and the core 1-3-11 on the locking mechanism 1-3, the working material is cooled and formed through the heat exchanger 2-5, and the heat exchanger 2-5 arranged on the mold is mainly used for ensuring that the working material is rapidly cooled after being formed, so that the flatness of a molded workpiece is ensured, and the pattern deformation of the appearance surface of the molded workpiece is avoided;

4) after cooling, the work material is ejected through the ejection plate 2-6 on the equipment, a plurality of air nozzles 2-8-1 are arranged in the ejection plate 2-6, the air nozzles 2-8-1 are used for providing high-pressure air through a small air pump 2-8 to eject ejection blocks 2-6-1 on the ejection plate 2-6, the molded workpiece is ejected through the ejection blocks 2-6-1 and drops into the collection box 2-10 to be collected, and the molded workpiece is ejected through a pneumatic mode, so that the damage of the designated equipment to the molded workpiece in the traditional production process can be reduced as much as possible.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims (7)

1. The utility model provides a can realize mould pouring equipment of three-dimensional decorative pattern which characterized in that: comprises a feeding system (1) and a molding system (2);

the feeding system (1) comprises a locking mechanism (1-3), the molding system (2) comprises a main body frame (2-1), and the locking mechanism (1-3) is fixed inside the main body frame (2-1);

the locking mechanism (1-3) comprises a pressurizing extrusion opening (1-3-1), a core (1-3-11), a locking clamp (1-3-2), an electric cylinder (1-3-21), a locking pin (1-3-22), a contact sensor (1-3-23) and a guide pin (1-3-3), the pressurizing extrusion opening (1-3-1) is fixedly communicated with the front face of the locking mechanism (1-3), the core (1-3-11) is fixed with the pressurizing extrusion opening (1-3-1), the locking clamp (1-3-2) and the locking mechanism (1-3) are fixed through two ends of the electric cylinder (1-3-21), and the locking pin (1-3-22) is fixed on the side of the locking clamp (1-3-2) The contact sensor (1-3-23) is also fixed on the side surface of the locking clamp (1-3-2), and the guide pin (1-3-3) is fixed on the front surface of the locking mechanism (1-3);

the molding system (2) further comprises a mold (2-3), an ejector plate (2-6) and an ejector block (2-6-1), wherein the ejector plate (2-6) is embedded at one side of the mold (2-3), and the ejector block (2-6-1) is connected with the ejector plate (2-6) in a sliding manner;

mould (2-3) still include locking groove (2-4), heat exchanger (2-5), template (2-7) and air jet (2-8-1), locking groove (2-4) are seted up the both sides of mould (2-3), heat exchanger (2-5) are fixed one side of mould (2-3), one side of liftout plate (2-6) is fixed the bottom of template (2-7), air jet (2-8-1) are fixed heat exchanger (2-5) with between liftout plate (2-6) and closely laminate the opposite side of liftout plate (2-6).

2. The mold casting equipment capable of realizing the stereoscopic patterns according to claim 1, wherein: the feeding system (1) further comprises a feeding hopper (1-1), a single-screw extrusion system (1-2) and screw gears (1-4), the bottom of the feeding hopper (1-1) is fixedly communicated with the top surface of the single-screw extrusion system (1-2), and the gears (1-4) are fixed at the right end of the single-screw extrusion system (1-2).

3. The mold casting equipment capable of realizing the stereoscopic patterns according to claim 2, wherein: the feeding system (1) further comprises speed reducer gears (1-5), speed reducers (1-6), couplers (1-7) and motors (1-8), wherein the speed reducer gears (1-5) are fixed with the gears (1-4) through transmission belts, the speed reducer gears (1-5) are fixed with the speed reducers (1-6) through shaft rods, and the speed reducers (1-6) and the motors (1-8) are fixedly connected through the couplers (1-7).

4. The mold casting equipment capable of realizing the stereoscopic patterns according to claim 1, wherein: the molding system (2) further comprises a main body frame (2-1) and a sliding rail (2-2), the sliding rail (2-2) penetrates through the side face of the main body frame (2-1), and a sliding groove is formed in the mold (2-3) and is in sliding connection with the sliding rail (2-2).

5. The mold casting equipment capable of realizing the stereoscopic patterns according to claim 1, wherein: the die plate (2-7) comprises an exhaust groove (2-7-1), guide holes (2-7-2) and a die cavity (2-7-3), the exhaust groove (2-7-1) is formed in the side face of the die plate (2-7), the guide holes (2-7-2) are formed in four corners of the front face of the die plate (2-7), and the die cavity (2-7-3) is formed in the middle of the front face of the die plate (2-7).

6. The mold casting equipment capable of realizing the stereoscopic patterns according to claim 1, wherein: the molding system (2) comprises a small air pump (2-8), a large air pump (2-9), an air cylinder (2-9-1) and a collecting box (2-10), the small air pump (2-8) is fixed at the bottom of the main body frame (2-1) and fixedly communicated with the air jet opening (2-8-1), the large air pump (2-9) is fixed at the bottom of the main body frame (2-1) and fixedly communicated with one end of the air cylinder (2-9-1), the other end of the air cylinder (2-9-1) is fixed with one end of the mold (2-3), and the collecting box (2-10) is fixed at the right side of the small air pump (2-8).

7. A method for pouring a mold capable of realizing three-dimensional patterns is characterized by comprising the following steps: the method specifically comprises the following steps: 1) putting the working material into a feeding material, heating and dissolving the working material after the working material enters a single-screw extrusion system through a feed hopper, and ensuring that the working material can be smoothly pressurized, injected and molded in the subsequent processing process;

2) the dissolved work material enters a locking mechanism through pressurization and pushing of a single-screw extrusion system, a large-sized air pump fills high-pressure air into an air cylinder after the work material enters the locking mechanism, the air cylinder pushes a mold to enable a template to be attached to the locking mechanism, and the locking mechanism locks the locking mechanism and the mold through a locking pin matched with a locking groove on the mold and a guide pin matched with a guide hole;

3) the working material is extruded into the template through a pressurizing extrusion port, the working material is positioned through a cavity formed by matching between a cavity on the template and a core on a locking mechanism, the working material is cooled and formed through a heat exchanger, and corresponding 3D patterns are carved on the selected cavity or core in advance through laser;

4) after the cooling is finished, the work material is ejected out through the ejection plate on the equipment, a plurality of air nozzles are arranged inside the ejection plate, the air nozzles provide high-pressure gas for ejecting ejection blocks on the ejection plate through a small air pump, and the molding workpieces are ejected out through the ejection blocks and fall into the collection box for collection.

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