CN113714483A

CN113714483A - Die casting die of quick die change

Info

Publication number: CN113714483A
Application number: CN202110990656.2A
Authority: CN
Inventors: 张作坚
Original assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Current assignee: Dongguan Hongwei Precision Hardware Products Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-30

Abstract

The invention provides a die-casting die capable of quickly changing a die, which comprises an upper die base and a lower die component, wherein the middle part of the upper end of a carrier plate is provided with a circular groove, a rotating plate is arranged in the circular groove, four grooves are arranged on the rotating plate, a die core assembly is arranged in each groove, a cavity is formed at the inner side of the die core component, one end of the cavity is connected with a water gap, two sides of the groove are provided with first flow passages, one end of the first flow passage is connected with a transition cavity, one end of the transition cavity is connected with a second flow passage, a feed inlet is arranged on the upper die base, a press pin is arranged at the bottom of the transition cavity, a pressure sensor and a first driving device are arranged at the lower side of the press pin, the upper die base is further provided with two avoiding grooves which are respectively positioned on the upper sides of the two die core assemblies, sliding blocks are arranged in the avoiding grooves, and one end of each sliding block is connected with a second driving device. The die-casting die disclosed by the invention can solve the problems of alloy product quality and production efficiency.

Description

Die casting die of quick die change

Technical Field

The invention relates to the technical field of die-casting dies, in particular to a die-casting die capable of quickly changing dies.

Background

The alloy product is a common daily product, and is widely applied to the fields of household products, medical equipment, building materials, sports equipment and the like due to the advantages of high strength, good durability, strong assembly and the like. In the manufacturing process of the alloy product, the alloy material in a molten state is generally uniformly stirred at a certain temperature, then the alloy material is injected into a die-casting die, the alloy material is formed in a cavity of the die-casting die, a formed alloy product is obtained after cooling and solidification, and then the alloy product is pushed down from the die-casting die through an ejector pin.

In the die-casting die in the prior art, due to the problem of air tightness of the die cavity, a small amount of bubbles exist in the die cavity easily after the alloy material is injected into the die cavity, so that the bubbles exist in the obtained alloy product or the surface structure is incomplete, and the product quality is influenced. On the other hand, the general die is formed by combining an upper die and a lower die, cooling is needed for a period of time after die casting is completed, then the die is opened to eject an alloy product, and the production efficiency is extremely low.

Disclosure of Invention

Aiming at the problems, the invention provides a die-casting die capable of quickly changing a die, which can solve the problems of alloy product quality and production efficiency.

In order to achieve the purpose, the invention is solved by the following technical scheme:

the die-casting die capable of quickly changing the die comprises an upper die base and a lower die assembly, wherein the lower die assembly comprises a base and a support plate fixed on the base, a circular groove is formed in the middle of the upper end of the support plate, a rotating plate is arranged in the circular groove, a positioning column is fixed in the middle of the rotating plate, a motor is connected to the bottom of the positioning column, four grooves are formed in the rotating plate, a die core assembly is arranged in each groove, a die cavity is formed in the inner side of the die core assembly, one end of each die cavity is connected with a water gap, first flow channels communicated with the two water gaps are arranged on the two sides of each groove, one end of each first flow channel is connected with a transition cavity, one end of each transition cavity is connected with a second flow channel, two feed inlets connected with the second flow channels are formed in the upper die base, a press pin is arranged at the bottom of the transition cavity, a pressure sensor is arranged on the lower side of the press pin, The upper die base is provided with two avoidance grooves, the two avoidance grooves are respectively positioned on the upper sides of the two die core assemblies, sliding blocks are arranged in the avoidance grooves, and one end of each sliding block is connected with a second driving device.

Specifically, mould benevolence subassembly includes upper mould benevolence, lower mould benevolence upper end edge is equipped with the handle, upper mould benevolence edge is equipped with the confession the through-hole that the handle passed.

Specifically, the die cavity bottom still is equipped with T shape hole, still be equipped with worker's shape thimble in the T shape hole, thimble outside cover is equipped with the spring, the spring is located lower mould benevolence downside, be equipped with the confession on the commentaries on classics board the round hole of worker's shape thimble, spring holding.

Specifically, the bottom of the upper die base is further provided with a first arc-shaped groove and a second arc-shaped groove which are used for allowing the upper die core and the handle to slide.

Specifically, the horizontal height of the first flow channel is greater than the horizontal height of the second flow channel.

Specifically, the upper end of the base is provided with a hollow groove, and the motor and the first driving device are both located on the inner side of the hollow groove.

Specifically, the slider both sides still are equipped with the stopper, it all is equipped with the confession to dodge groove both sides the gliding spacing groove of stopper.

Specifically, the first driving device and the second driving device are both cylinders.

The invention has the beneficial effects that:

1. according to the die-casting die, the transition cavity is additionally arranged on one side of the first flow channel, the pressing needle is additionally arranged at the lower end of the transition cavity, the pressure sensor and the first driving device are arranged on the lower side of the pressing needle, whether injection is finished in the cavity is judged according to the pressure value detected by the pressure sensor, the injection machine is controlled by the control system to automatically stop injection, and after injection is finished, the pressing needle is upwards ejected out by the first driving device, so that part of molten alloy materials in the transition cavity are extruded into the cavity, gaps in the cavity are avoided, and the molding quality of alloy products is improved;

2. the upper die base is further provided with two sliding blocks, one end of each sliding block is connected with a second driving device, four die core assemblies are distributed on the rotating plate in a cross structure, the four die core assemblies can be taken out of four grooves, a first injection station, a first disassembly and assembly station, a second injection station and a second disassembly and assembly station are formed in the die, after the two die core assemblies complete injection, the rotating plate is driven by a motor to rotate 90 degrees, then the two sliding blocks are pushed out from two avoiding grooves by utilizing the two second driving devices, the first disassembly and assembly station and the two die core assemblies on the second disassembly and assembly station are exposed, finally the two die core assemblies are grabbed and transferred by the manipulator, two new die core assemblies are put into the two grooves again by the manipulator, and the automatic die changing function is realized.

Drawings

Fig. 1 is a first three-dimensional structure diagram of a die-casting die for rapid die change according to the present invention.

Fig. 2 is a second three-dimensional structure diagram of the die-casting die for rapidly changing the die of the invention.

Fig. 3 is a top view of a die casting mold for rapid tooling change of the present invention.

Fig. 4 is a cross-sectional view taken along the plane a-a in fig. 3.

Fig. 5 is an enlarged view of a portion B in fig. 4.

FIG. 6 is a schematic view of the upper and lower mold cores.

The reference signs are: the mold comprises an upper mold base 1, a feed inlet 11, a spring 12, a first arc-shaped groove 13, a second arc-shaped groove 14, a lower mold component 2, a base 21, a hollow groove 211, a carrier plate 22, a first flow channel 201, a transition cavity 202, a second flow channel 203, a rotating plate 3, a positioning column 31, a motor 32, a mold core component 4, an upper mold core 41, a lower mold core 42, a handle 421, a through hole 411, a mold cavity 401, a water gap 402, a press pin 5, a pressure sensor 6, a first driving device 7, a sliding block 8, a limiting block 81, a second driving device 9 and an I-shaped thimble 10.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-6:

a die casting die capable of quickly changing dies comprises an upper die base 1 and a lower die component 2, wherein the lower die component 2 comprises a base 21 and a carrier plate 22 fixed on the base 21, a circular groove is formed in the middle of the upper end of the carrier plate 22, a rotating plate 3 is arranged in the circular groove, a positioning column 31 is fixed in the middle of the rotating plate 3, a motor 32 is connected to the bottom of the positioning column 31, four grooves are formed in the rotating plate 3, a die core component 4 is arranged in each groove, a die cavity 401 is formed in the inner side of the die core component 4, one end of each die cavity 401 is connected with a water gap 402, first flow channels 201 communicated with the two water gaps 402 are arranged on the two sides of each groove, one end of each first flow channel 201 is connected with a transition cavity 202, one end of each transition cavity 202 is connected with a second flow channel 203, two feed inlets 11 connected with the second flow channels 203 are arranged on the upper die base 1, press pins 5 are arranged at the bottoms of the transition cavities 202, pressure sensors 6 and first driving devices 7 are arranged on the lower sides of the press pins 5, before injection, the pressure sensor 6 only detects the pressure of the pressing needle 5, the pressure value is a, during injection, the transition cavity 202 is filled with molten alloy material, the pressure sensor 6 detects the pressure of the pressing needle 5 and the molten alloy material, the pressure value is b, after injection is completed, the transition cavity 202 is filled with the molten alloy material with interference and influenced by the injection pressure of the injection machine, the pressure value of the pressure sensor is c, a is less than b and less than c, whether injection is completed in the cavity 401 can be judged according to the magnitude of the pressure value, the injection machine is controlled by the control system to automatically stop injection, after injection is completed, the pressing needle 5 is upwards ejected by the first driving device 7, so that part of the molten alloy material in the transition cavity 202 is extruded into the cavity 401, the existence of a gap in the cavity 401 is avoided, and the obtained alloy product has no air hole, The surface is complete.

The upper die holder 1 is also provided with two avoiding grooves which are respectively positioned at the upper sides of two die core assemblies 4, a slide block 8 is arranged in the avoiding groove, one end of the slide block 8 is connected with a second driving device 9, the four die core assemblies 4 are distributed on the rotating plate 3 in a cross structure, the four die core assemblies 4 can be taken out from the four grooves, a first injection station, a first disassembly and assembly station, a second injection station and a second disassembly and assembly station are formed in the die, the first injection station and the second injection station are respectively close to the position of the water gap 402 and are oppositely arranged, the first disassembly and assembly station and the second disassembly and assembly station are respectively positioned below the two slide blocks 8, after the two die core assemblies 4 respectively complete injection on the first injection station and the second injection station, the rotating plate 3 is driven by a motor 32 to rotate 90 degrees, and then the two slide blocks 8 are pushed out from the two avoiding grooves by the two second driving devices 9, thereby expose two mould benevolence subassemblies 4 on first dismouting station, the second dismouting station, snatch two mould benevolence subassemblies 4 through the manipulator at last and shift, put into two recesses again with two new mould benevolence subassemblies 4 through the manipulator, realize automatic retooling function.

Preferably, in order to facilitate the mechanical arm to grasp the mold core assembly 4, the mold core assembly 4 includes an upper mold core 41 and a lower mold core 42, a handle 421 is disposed on an upper edge of the lower mold core 42, and a through hole 411 for the handle 421 to pass through is disposed on an edge of the upper mold core 41.

Preferably, in order to make the alloy product in the cavity 401 easier to be demolded, a T-shaped hole is further formed in the bottom of the cavity 401, an i-shaped thimble 10 is further arranged in the T-shaped hole, a spring 12 is sleeved outside the thimble, the spring 12 is located on the lower side of the lower mold core 42, a circular hole for accommodating the i-shaped thimble 10 and the spring 12 is formed in the rotating plate 3, after the mold core assembly 4 is taken out by the manipulator and cooled, the upper mold core 41 and the lower mold core 42 can be opened, and then the i-shaped thimble 10 is ejected upwards, so that the alloy product in the cavity 401 is demolded.

Preferably, in order to rotate the four die core assemblies 4 inside the die, the bottom of the upper die base 1 is further provided with a first arc-shaped groove 13 and a second arc-shaped groove 14 for the upper die core 41 and the handle 421 to slide.

Preferably, the level of the first flow channel 201 is greater than the level of the second flow channel 203.

Preferably, the upper end of the base 21 is provided with a hollow-out groove 211, and the motor 32 and the first driving device 7 are both located inside the hollow-out groove 211.

Preferably, the two sides of the sliding block 8 are also provided with limiting blocks 81, and the two sides of the avoiding groove are both provided with limiting grooves for the limiting blocks 81 to slide.

Preferably, the first driving device 7 and the second driving device 9 are both air cylinders.

The above examples only show 1 embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The die-casting die capable of quickly changing the die is characterized by comprising an upper die base (1) and a lower die component (2), wherein the lower die component (2) comprises a base (21) and a support plate (22) fixed on the base (21), a circular groove is formed in the middle of the upper end of the support plate (22), a rotating plate (3) is arranged in the circular groove, a positioning column (31) is fixed in the middle of the rotating plate (3), a motor (32) is connected to the bottom of the positioning column (31), four grooves are formed in the rotating plate (3), a die core component (4) is arranged in each groove, a die cavity (401) is formed in the inner side of the die core component (4), one end of each die cavity (401) is connected with a water gap (402), first flow channels (201) communicated with the water gaps (402) are formed in the two sides of each groove, one end of each first flow channel (201) is connected with a transition cavity (202), transition cavity (202) one end is connected with second runner (203), be equipped with on upper die base (1) two with feed inlet (11) that second runner (203) are connected, transition cavity (202) bottom is equipped with tucking (5), tucking (5) downside is equipped with pressure sensor (6), first drive arrangement (7), still be equipped with two on upper die base (1) and dodge the groove, two dodge the groove and be located wherein two respectively mould benevolence subassembly (4) upside, dodge the inslot and be equipped with slider (8), slider (8) one end is connected with second drive arrangement (9).

2. The die-casting die capable of rapidly changing the die as claimed in claim 1, wherein the die core assembly (4) comprises an upper die core (41) and a lower die core (42), a handle (421) is arranged on the upper end edge of the lower die core (42), and a through hole (411) for the handle (421) to pass through is arranged on the edge of the upper die core (41).

3. The die-casting die for quickly changing the die as claimed in claim 2, wherein a T-shaped hole is further formed in the bottom of the die cavity (401), an I-shaped ejector pin (10) is further arranged in the T-shaped hole, a spring (12) is sleeved outside the ejector pin, the spring (12) is located on the lower side of the lower die core (42), and a round hole for accommodating the I-shaped ejector pin (10) and the spring (12) is formed in the rotating plate (3).

4. The die-casting die capable of rapidly changing the die is characterized in that the bottom of the upper die holder (1) is further provided with a first arc-shaped groove (13) and a second arc-shaped groove (14) for the upper die core (41) and the handle (421) to slide.

5. The die casting mold for rapid die change according to claim 1, wherein the level of the first runner (201) is greater than the level of the second runner (203).

6. The die-casting die capable of rapidly changing the die is characterized in that a hollow groove (211) is formed in the upper end of the base (21), and the motor (32) and the first driving device (7) are located on the inner side of the hollow groove (211).

7. The die-casting die for rapidly changing the die is characterized in that limiting blocks (81) are further arranged on two sides of the sliding block (8), and limiting grooves for the limiting blocks (81) to slide are formed in two sides of the avoiding groove.

8. The die-casting die for rapidly changing the die as claimed in claim 1, wherein the first driving device (7) and the second driving device (9) are both air cylinders.