AU2021203765B2

AU2021203765B2 - Automatic hot die casting device having multiple working positions and working method

Info

Publication number: AU2021203765B2
Application number: AU2021203765A
Authority: AU
Inventors: Xin CUI; Teng GAO; Yali HOU; Changhe LI; Xiangyang MA; Xiaohong MA; Mingcun SHI; Xiaoming Wang; Baoda XING; Han ZHAI
Original assignee: Shenyang Hongyang Precision Ceramics Co Ltd; Qingdao University of Technology
Current assignee: Shenyang Hongyang Precision Ceramics Co ltd; Qingdao University of Technology
Priority date: 2020-07-03
Filing date: 2021-06-08
Publication date: 2022-08-11
Anticipated expiration: 2041-06-08
Also published as: AU2021203765A1; CN111745785A; CN113524394A; CN113524394B

Abstract

The present invention relates to an automatic hot die casting device having multiple working positions and a working method. The automatic hot die casting device having multiple working positions includes a die casting mechanism, including an upper mold assembly and a lower mold assembly, where the upper mold assembly includes a first workbench capable of vertically moving, the first workbench is fixedly connected to a cavity plate, the cavity plate is provided with a cavity, an upper mold is disposed above the cavity plate, the upper mold is provided with an ejector rod extending into the cavity, the upper mold is capable of driving the ejector rod to move in the cavity, the lower mold assembly includes a second workbench capable of vertically moving, the second workbench is fixed to a lower mold provided with a sprue; a grouting mechanism, including a slurry barrel, where the slurry barrel is connected to a sprue plate through a grouting pipe, the sprue plate is provided with a runner communicating with the grouting pipe, the runner is capable of communicating with the sprue; a discharging mechanism, including a first bracket, where the first bracket is connected to a first driving mechanism capable of driving the first bracket to move to a position under the cavity plate. The hot die casting device of the present invention has a high automation degree, and reduces the work intensity. 4/18 1-45 1-43 I-52 I-42 I-37 I-41 I-40 I-38 I-36 I-44 1-27 FIG. 7 I-40 I-43 I-44 I-45 I-42 I-45 I-52 I-401I-44 I-41 I-43 F r I-42 1-27/~ ~ ~ ~ 13 13 -36 \I-27 13 FIG. 8 FIG. 9

Description

4/18

1-45 1-43 I-52

I-42

I-37

I-41

I-40

I-38

I-36

I-44 1-27

FIG. 7 I-40 I-43 I-44 I-45 I-42 I-45 I-52 I-401I-44 I-41 I-43 F r

I-42

1-27/~ ~ ~ ~ 13 13 -36 \I-27 13

FIG. 8 FIG. 9

AUTOMATIC HOT DIE CASTING DEVICE HAVING MULTIPLE WORKING POSITIONS AND WORKING METHOD BACKGROUND

Technical Field

[0001] The present invention relates to the technical field of processing molding of alumina ceramics, and particularly relates to an automatic hot die casting device having multiple working positions and a working method.

Related Art

[0002] Any discussion of the prior art throughout the specification should in no way be considered as an admission that such prior art is widely known or forms part of common general knowledge in the field.

[0003] Descriptions herein only provide background techniques related to the present invention, and do not necessarily constitute the related art.

[0004] The molding methods of alumina ceramic products include dry pressing, grouting, extrusion, cold isostatic pressing, injection, casting, hot pressing, hot isostatic pressing, and the like.

[0005] Hot casting molding is a relatively extensive production process for producing special ceramics. The basic principle is as follows: by means of the characteristics of paraffin molten by heating and solidified by cooling, non-plastic infertile ceramic powder and hot paraffin liquid are evenly mixed to form flowable slurry, and the slurry is injected into a metal mold under a certain pressure and molded and cooled; after the paraffin slurry is solidified, a molded blank is removed from the mold; the blank is properly trimmed, buried in an adsorbent and heated for paraffin removal; and then, the blank after paraffin removal is sintered to form a final product.

[0006] The inventor found that traditional hot die casting equipment in widest application has a low automation degree, and mostly adopts manual mold closing, so that the work intensity is very high. Additionally, six work procedures, mold closing, grouting, pressure preservation, grouting opening cutting, mold release and blank discharging, are all performed by workers through pressing an electromagnetic pneumatic valve button according to experience, and thus the work is complicated. Due to the manual control on the operation time of each work procedure, there are defects of low yield, too great energy consumption and low safety. The inventor also found that after blank discharging of an existing die casting machine, blanks need to be collected manually, automatic discharging cannot be completed, a grouting opening cannot be cut, the automation degree is low, and the work intensity is increased.

SUMMARY

[0007] It is an object of the present invention to overcome or ameliorate at least one of the disadvantages of the prior art, or to provide a useful alternative.

[0008] An object of the present invention, in at least one preferred form, is to overcome the defects in the prior art and provide an automatic hot die casting device having multiple working positions which has a high automation degree and little manual intervention, can automatically complete operations such as mold closing, mold release and discharging, and has high work efficiency and low work intensity.

[0009] According to one aspect of the present invention, there is provided an automatic hot die casting device having multiple working positions, comprising: a die casting mechanism, comprising an upper mold assembly and a lower mold assembly, wherein the upper mold assembly comprises a first workbench capable of vertically moving, the first workbench is fixedly connected to a cavity plate, the cavity plate is provided with a cavity, an upper mold is disposed above the cavity plate, the upper mold is provided with an ejector rod extending into the cavity, the upper mold is capable of driving the ejector rod to move in the cavity, the lower mold assembly comprises a second workbench capable of vertically moving, and the second workbench is fixed to a lower mold provided with a sprue; a grouting mechanism, comprising a slurry barrel, wherein the slurry barrel is connected to a sprue plate through a grouting pipe, the sprue plate is provided with a runner communicating with the grouting pipe, and the runner is capable of communicating with the sprue; and a discharging mechanism, comprising a first bracket, wherein the first bracket is connected to a first driving mechanism capable of driving the first bracket to move to a position under the cavity plate; further comprises a second bracket, and the second bracket is connected to a second driving mechanism capable of driving the second bracket to move to a position under the lower mold, wherein the first driving mechanism and the second driving mechanism are disposed on a support plate fixedly disposed, each of the first driving mechanism and the second driving mechanism comprises a discharging driving element, the discharging driving element is fixed onto the support plate, and is connected to a rack, the rack is slidably connected to the support plate, the rack is meshed with a gear, the gear is rotatably connected to a fixed mandrel fixed to the support plate, an edge of the gear is connected to one end of a connecting element, the connecting element of the first driving mechanism is connected to the first bracket, and the connecting element of the second driving mechanism is connected to the second bracket; and a material pushing driving element is fixed onto the connecting element of each of the first driving mechanism and the second driving mechanism, and the material pushing driving element is connected to a tray side frame and capable of driving the tray side frame to move so as to push out materials on the first bracket and the second bracket.

[0010] In one aspect, the embodiments of the present invention provide an automatic hot die casting device having multiple working positions, including: a die casting mechanism, including an upper mold assembly and a lower mold assembly, wherein the upper mold assembly includes a first workbench capable of vertically moving, the first workbench is fixedly connected to a cavity plate, the cavity plate is provided with a cavity, an upper mold is disposed above the cavity plate, the upper mold is provided with an ejector rod extending into the cavity, the upper mold is capable of driving the ejector rod to move in the cavity, the lower mold assembly includes a second workbench capable of vertically moving, and the second workbench is fixed to a lower mold provided with a sprue; a grouting mechanism, including a slurry barrel, wherein the slurry barrel is connected to a sprue plate through a grouting pipe, the sprue plate is provided with a runner communicating with the grouting pipe, and the runner is capable of communicating with the sprue; and a discharging mechanism, including a first bracket, wherein the first bracket is connected to a first driving mechanism capable of driving the first bracket to move to a position under the cavity plate.

[0011] In a further aspect, the embodiments of the present invention provide a working method of the automatic hot die casting device having multiple working positions: the first workbench and the second workbench vertically move so that the cavity plate is attached to the lower mold, and the lower mold is attached to the sprue plate to complete mold closing, at the moment, the sprue communicates with the cavity, the runner communicates with the sprue, the grouting mechanism operates, slurry in the slurry barrel enters the cavity through the grouting pipe, the runner and the sprue for die casting molding, after the die casting molding is completed, the cavity plate and the lower mold maintained in a mold closing state move to a set position, the first workbench and the second workbench move far away from each other so that the cavity plate is separated from the lower mold to complete mold release, a first tray moves to a position right under the cavity plate under the action of the first driving mechanism, the ejector rod moves in the cavity, a die casted blank is ejected out of the cavity, and the blank falls into the first tray.

The present invention has the following beneficial effects:

[0012] 1. According to the automatic hot die casting device of one embodiment of the present invention, both the first workbench and the second workbench can vertically move, so that the automatic attaching and separation of the cavity plate and the lower mold is realized, and thus the objective of automatically completing mold closing and mold release is achieved without manual intervention, the automation degree is high, the production efficiency is high, the product quality is improved, the work intensity of workers is reduced, and the production safety is improved.

[0013] 2. The automatic hot die casting device of one embodiment the present invention is provided with the first tray and the first driving mechanism, by using the vertical movement of the first workbench and the second workbench, the first tray can move to a position right under the cavity plate under the action of the first driving mechanism, the upper mold drives the ejector rod to move in the cavity, the die casted blank can be ejected out and fall into the first tray, so that the automatic discharging is realized, the production efficiency is high, and the work intensity of workers is reduced.

[0014] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings constituting a part of this application are used for providing further understanding for this application. Exemplary embodiments of this application and descriptions thereof are used for explaining this application and do not constitute a limitation to this application.

[0016] FIG. 1 is a schematic diagram of an integral structure in Embodiment 1 of the present invention.

[0017] FIG. 2 is a schematic structure diagram of a die casting mechanism in Embodiment 1 of the present invention.

[0018] FIG. 3 is a front view of the die casting mechanism in Embodiment 1 of the present invention.

[0019] FIG. 4 is a detail enlarged view in FIG. 3 of the present invention.

[0020] FIG. 5 is a detail enlarged view in FIG. 4 of the present invention.

[0021] FIG. 6 is a schematic diagram of an upper mold assembly and a lower mold assembly in a mold closing state in Embodiment 1 of the present invention.

[0022] FIG. 7 is a schematic exploded view of FIG. 6 of the present invention.

[0023] FIG. 8 is a front view of the upper mold assembly and the lower mold assembly in the mold closing state in Embodiment 1 of the present invention.

[0024] FIG. 9 is a side view of the upper mold assembly and the lower mold assembly in the mold closing state in Embodiment 1 of the present invention.

[0025] FIG. 10 a schematic diagram of a cavity after mold closing in Embodiment 1 of the present invention.

[0026] FIG. 11 is a detail enlarged view in FIG. 10 of the present invention.

[0027] FIG. 12 is a schematic structure diagram of a lower mold in Embodiment 1 of the present invention.

[0028] FIG. 13 is a top view of the lower mold in Embodiment 1 of the present invention.

[0029] FIG. 14 is a schematic sectional view of a direction A in FIG. 13 of the present invention.

[0030] FIG. 15 is a schematic sectional view of a direction B in FIG. 13 of the present invention.

[0031] FIG. 16 is a schematic sectional view of a direction C in FIG. 15 of the present invention.

[0032] FIG. 17 is a detail enlarged view in FIG. 13 of the present invention.

[0033] FIG. 18 is a schematic sectional view of a direction D in FIG. 17 of the present invention.

[0034] FIG. 19 is a schematic structure diagram of a cavity plate in Embodiment 1 of the present invention.

[0035] FIG. 20 is a top view of the cavity plate in Embodiment 1 of the present invention.

[0036] FIG. 21 is a schematic sectional view of a direction C of FIG. 20 of the present invention.

[0037] FIG. 22 is a schematic sectional view of a direction D of FIG. 20 of the present invention.

[0038] FIG. 23 is a schematic sectional view of a direction A of FIG. 21 of the present invention.

[0039] FIG. 24 is a schematic sectional view of a direction B of FIG. 20 of the present invention.

[0040] FIG. 25 is a schematic structure diagram of an upper mold in Embodiment 1 of the present invention.

[0041] FIG. 26 is a front view of a structure of the upper mold in Embodiment 1 of the present invention.

[0042] FIG. 27 is a detail enlarged view in FIG. 26 of the present invention.

[0043] FIG. 28 is a top view of the structure of the upper mold in Embodiment 1 of the present invention.

[0044] FIG. 29 is a schematic sectional view of a direction A in FIG. 28 of the present invention.

[0045] FIG. 30 is a schematic sectional view of a direction B in FIG. 28 of the present invention.

[0046] FIG. 31 is a detail enlarged view in FIG. 28 of the present invention.

[0047] FIG. 32 is a schematic structure diagram of a core plate in Embodiment 1 of the present invention.

[0048] FIG. 33 is a top view of the core plate in Embodiment 1 of the present invention.

[0049] FIG. 34 is a schematic sectional view of a direction A of FIG. 33 of the present invention.

[0050] FIG. 35 is a schematic sectional view of a direction B of FIG. 33 of the present invention.

[0051] FIG. 36 is a detail enlarged view in FIG. 33 of the present invention.

[0052] FIG. 37 is a schematic sectional view of a direction C in FIG. 33 of the present invention.

[0053] FIG. 38 is a front view of the core plate in Embodiment 1 of the present invention.

[0054] FIG. 39 is a detail enlarged view in FIG. 38 of the present invention.

[0055] FIG. 40 is a schematic structure diagram of a sprue push plate in Embodiment 1 of the present invention.

[0056] FIG. 41 is a schematic sectional view of a core rod in Embodiment 1 of the present invention.

[0057] FIG. 42 is a schematic structure diagram of a fixing plate in Embodiment 1 of the present invention.

[0058] FIG. 43 is a top view of the fixing plate in Embodiment 1 of the present invention.

[0059] FIG. 44 is a schematic sectional view of a direction A in FIG. 43 of the present invention.

[0060] FIG. 45 is a schematic sectional view of a direction B in FIG. 43 of the present invention.

[0061] FIG. 46 is a schematic structure diagram of a sprue plate in Embodiment 1 of the present invention.

[0062] FIG. 47 is a schematic sectional view of a sub channel in Embodiment 1 of the present invention.

[0063] FIG. 48 is a schematic diagram of assembling a needle valve type oil cup in Embodiment 1 of the present invention.

[0064] FIG. 49 is a schematic diagram of assembling a first mold release air cylinder, a second mold release air cylinder and a sprue push plate driving air cylinder with a first workbench in Embodiment 1 of the present invention.

[0065] FIG. 50 is a schematic structure diagram of a discharging mechanism in Embodiment 1 of the present invention.

[0066] FIG. 51 is a front view of the discharging mechanism in Embodiment 1 of the present invention.

[0067] FIG. 52 is a schematic sectional view of a direction A in FIG. 51 of the present invention.

[0068] FIG. 53 is a schematic sectional view of a direction D in FIG. 51 of the present invention.

[0069] FIG. 54 is a schematic sectional view of a direction B in FIG. 51 of the present invention.

[0070] FIG. 55 is a schematic sectional view of a direction C in FIG. 51 of the present invention.

[0071] FIG. 56 is a schematic diagram of assembling a first tray and a material pushing driving element in Embodiment 1 of the present invention.

[0072] FIG. 57 is a schematic exploded view of FIG. 56 of the present invention.

[0073] FIG. 58 is a schematic structure diagram of a first rack guide groove in Embodiment 1 of the present invention.

[0074] FIG. 59 is a schematic structure diagram of a first rack in Embodiment 1 of the present invention.

[0075] FIG. 60 is a schematic structure diagram of a first hinging buckle in Embodiment 1 of the present invention.

[0076] FIG. 61 is a schematic diagram of assembling a second tray with a material pushing driving element in Embodiment 1 of the present invention.

[0077] FIG. 62 is a schematic exploded view of FIG. 61 of the present invention.

[0078] FIG. 63 is a schematic diagram of a grouting mechanism in Embodiment 1 of the present invention.

[0079] FIG. 64 is a schematic exploded view of FIG. 63 of the present invention.

[0080] FIG. 65 is a sectional view of a grouting mechanism in Embodiment 1 of the present invention.

[0081] FIG. 66 is a schematic structure diagram of an electric heating pipe fixing seat in Embodiment 1 of the present invention.

[0082] FIG. 67 is a schematic diagram of installing the grouting mechanism on a support seat in Embodiment 1 of the present invention.

[0083] FIG. 68 is a schematic structure diagram of a blank processed in Embodiment 2 of the present invention.

[0084] FIG. 69 is a top view of the blank processed in Embodiment 2 of the present invention.

[0085] FIG. 70 is a bottom view of the blank processed in Embodiment 2 of the present invention.

[0086] In the drawings, 1-01 third workbench, 1-02 third workbench fastening nut, 1-03 first mold release air cylinder, 1-04 first workbench lifting air cylinder fastening nut, 1-05 sprue push plate driving air cylinder, 1-06 first workbench lifting air cylinder, 1-07 pin shaft, 1-08 second mold release air cylinder, 1-09 nut, 1-10 stud, 1-11 spring washer, 1-12 guide sleeve fastening screw, 1-13 guide sleeve, 1-14 first workbench, 1-15 guide rod, 1-16 circulation water pump, 1-17 circulation water pump fastening nut, 1-18 circulation water pump connecting bolt, 1-19 water tank, 1-20 support seat, 1-21 control box, 1-22 copper plug, 1-23 second workbench first lifting air cylinder, 1-24 bottom plate, 1-25 press block, 1-26 press block fixing screw, 1-27 lower mold plate, 1-28 sprue plate, 1-29 second workbench second lifting air cylinder, 1-30 second workbench, 1-31 needle valve type oil cup, 1-32 flared fitting, 1-33 double tee joint, 1-34 double tee joint press strip, 1-35 double tee joint fixing screw, 1-36 cavity plate, 1-37 pin, 1-38 first cushion block, 1-39 upper mold hinging pin shaft, I upper mold, 1-41 core plate, 1-42 second cushion block, 1-43 sprue push plate, 1-44 guide post, 1-45 fixing plate, 1-46 sprue push plate fixing screw, 1-47 positioning ring fastening screw, 1-48 positioning ring, 1-49 jet nozzle fastening screw, 1-50 jet nozzle, 1-51 main runner bushing, 1-52 cushion block connecting screw, and 1-53 blank;

[0087] 11-01 first tray, 11-02 second tray connecting bolt, 11-03 second sleeve, 11-04 first tray connecting bolt, 11-05 first sleeve, 11-06 first rack guide groove positioning pin, 11-07 fastening nut, 11-08 first gear, 11-09 first rack guide groove, 11-10 first rack, 11-11 first hinging buckle pin, 11-12 first hinging buckle, 11-13 first air cylinder fixing seat, 11-14 first air cylinder fixing seat connecting bolt, 11 first air cylinder fixing cover, 11-16 first rack driving air cylinder, 11-17 first air cylinder fixing cover connecting screw, 11-18 second rack driving air cylinder, 11-19 second air cylinder fixing seat, 11-20 support plate, 11-21 second air cylinder fixing cover, 11-22 second air cylinder fixing seat connecting bolt, 11-23 second air cylinder fixing cover connecting screw, 11-24 second hinging buckle, 11-25 second hinging buckle screw, 11-26 second rack guide groove positioning pin, 11-27 second rack, 11 28 second rack guide groove, 11-29 second gear, 11-30 second tray, 11-31 thrust ball bearing, 11-32 third sleeve, 11-33 fixed mandrel, 11-34 first rack guide groove fastening nut, 11-35 first rack guide groove spring washer, 11-36 first rack guide groove connecting bolt, 11-37 first air cylinder fixing seat fastening nut, and 11-38 first air cylinder fixing seat spring washer;

[0088] 111-01 thermocouple, 111-02 oil bath box fastening nut, 111-03 oil bath box spring washer, 111-04 oil bath box connecting bolt, 111-05 slurry outlet end cover, 111-06 hand hole end cover, 111-07 hand hole end cover pressing screw rod, 111-08 rotating push rod, 111-09 top cover, 111-10 transverse clamp block, 111-11 electric heating pipe fixing seat fastening screw, 111-12 slurry barrel fastening screw, 111-13 electric heating device, 111-14 grouting pipe, 111-15 slurry outlet end cover sealing washer, 111-16 slurry barrel, 111-17 rubber sealing pad, 111-18 electric heating pipe fixing seat, 111-19 oil bath box,111-20 electric heating pipe fastening screw, 111-21 electric heating pipe, 111-22 hand hole end cover sealing washer, 111-23 slurry, and 111-24 oil material;

[0089] 1-2701 lower mold plate positioning hole, 1-2702 sprue, 1-2703 lower mold plate cooling water channel, 1-2704 first water pipe joint, 1-2801 main channel, 1-2802 sub channel, 1-3601 second water pipe joint, 1-3602 pin positioning hole, 1-3603 cavity plate cooling water channel, and 1-3604 cavity; and

[0090] 11-0101 first tray side frame, 11-0102 third air cylinder fixing cover, 11-0103 third air cylinder fixing cover connecting screw, 11-0104 third driving air cylinder, 11-0105 third air cylinder fixing seat, 11-0106 third air cylinder connecting nut, 11-0107 first bracket, 11-3001 second bracket, 11-3002 second tray side frame, 11-3003 fourth air cylinder fixing cover connecting screw, 11-3004 fourth driving air cylinder, 11-3005 fourth air cylinder fixing cover, 11-3006 fourth air cylinder fixing seat, and 11-3007 fourth air cylinder connecting nut.

DETAILED DESCRIPTION

[0091] It should be noted that the following detailed descriptions are all exemplary and are intended to provide a further understanding of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which the present application belongs.

[0092] It should be noted that terms used herein are only for describing specific implementations and are not intended to limit exemplary implementations according to this application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise. In addition, it should further be understood that terms "comprise" and/or "include" used in this specification indicate that there are features, steps, operations, devices, components, and/or combinations thereof.

[0093] For convenience of description, the words "upper", "lower", "left" and "right", if exist in the present invention, only indicate upper, lower, left and right directions consistent with those of the accompanying drawings, are not intended to limit the structure, and are used only for ease of description of the present invention and brevity of description, rather than indicating or implying that the mentioned device or element needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as a limitation on the present invention.

[0094] As described in the related art, the existing hot die casting equipment has defects of low automation degree, low production efficiency and high work intensity of workers. Aiming at the above problems, the present invention provides an automatic hot die casting device having six working positions.

[0095] In a typical implementation of Embodiment 1 of the present invention, as shown in FIG. 1 to FIG. 67, an automatic hot die casting device having multiple working positions includes a support seat 1-20, a die casting mechanism I is mounted on a top surface of the support seat, a discharging mechanism IIis disposed at one side of the die casting mechanism, and is mounted on the top surface of the support seat, and a grouting mechanism III is disposed inside the support seat and is positioned under the die casting mechanism.

[0096] The die casting mechanism includes an upper mold assembly and a lower mold assembly capable of vertically moving.

[0097] The upper mold assembly includes elements such as a first workbench, a cavity plate, a core plate, a sprue push plate and a fixing plate. The first workbench 1-14 can vertically move, and a guide sleeve 1-13 is disposed in each of four corners of the first workbench. The guide sleeve is fixedly connected to the first workbench through a guide sleeve fastening screw 1-12. A guide rod 1-15 with a vertically disposed axial line passes through the guide sleeve, and a lug boss is disposed at a bottom end of the guide rod. Two position limiting bars are disposed between the lug boss and the guide rod, and are inserted into position limiting clamp grooves formed in a bottom plate 1-24, and the bottom plate is fixed to the top surface of the support seat. Through the cooperation of the position limiting bars and the position limiting clamp grooves, the guide rod is prevented from rotating around the self axial line, the fixed connection of the guide rod and the bottom plate is realized, and the guide rod can guide the movement of the first workbench.

[0098] The bottom surface of the first workbench is fixedly connected to the fixing plate 1-45 through a press block 1-25 and a press block fixing screw 1-26, a bottom surface of the fixing plate is connected to a top surface of a second cushion block 1-42 through a cushion block connecting screw 1-52, a bottom surface of the second cushion block is connected to a top surface of a core plate 1-41 through a cushion block connecting screw, a bottom surface of the core plate is fixedly connected to a top surface of a first cushion block 1-38 through a cushion block connecting screw, and a bottom surface of the first cushion block is fixedly connected to the cavity plate 1-36 through a cushion block connecting screw. Pins 1-37 are disposed between four corners of the cavity plate and the core plate, and are configured to position the assembly between the cavity plate and the core plate, and the pins extend to a position under the cavity plate, and are configured to be matched with the lower mold assembly.

[0099] A plurality of cavities 1-3604 are formed in the cavity plate. In the present embodiment, there are twelve cavities. The cavity includes a sprue portion and molding portions positioned at two sides of the sprue portion. The molding portion is matched with a to-be-cast blank in shape. Five cavity plate cooling water channels 1-3603 are also formed in the cavity plate, and second water pipe joints 1-3601 are disposed at two ends of the cavity plate cooling water channel. In a direction vertical to the axial line of the cavity plate cooling water channel, the five second water pipe joints at the same side are sequentially numbered as a No. 1 joint, a No. 2 joint, a No. 3 joint, a No. 4 joint, and a No. 5 joint, and the second water pipe joints at the other side are respectively numbered as a No. 6 joint, a No. 7 joint, a No. 8 joint, a No. 9 joint, and a No. 10 joint. The No. 1 joint and the No. 4 joint are connected by a hose, the No. 2 joint and the No. 5 joint are connected by a hose, the No. 3 joint is not connected to a hose, and is used as a water inlet, the No. 7 joint and the No. 9 joint are connected by a hose, the No. 8 joint and the No. 10 joint are connected by a hose, and the No. 6 joint is used as a water outlet. At this moment, the five cavity plate cooling water channels can form a cooling water loop, and a pin positioning hole 1-3602 for being connected to a pin is also formed in the cavity plate.

[00100] An upper mold 1-40 is disposed between the cavity plate and the core plate. Twelve groups of ejector rods are disposed on a bottom surface of the upper mold, each group includes two ejector rods, and a first core rod through hole is formed in the upper mold position between the ejector rods in the same group. The positions and the shapes of the ejector rods in the same group are matched with the positions and shapes of two molding portions of the same cavity, the ejector rods extend into the molding portions of the cavity, a circular arc transition surface inclined towards the center of the ejector rod is disposed at an edge of a bottom surface of the ejector rod, and each ejector rod is provided with four core holes through which core pins pass. Two ends of the upper mold are provided with installing portions. The installing portion is provided with an installing hole, and an upper mold hinging pin shaft 1-39 is disposed in the installing hole. The upper mold hinging pin shaft is connected to two second driving elements, and the two second driving elements are respectively a first mold release air cylinder 1-03 and a second mold release air cylinder 1-08. The first mold release air cylinder and the second mold release air cylinder are each fixedly connected to the first workbench through a nut 1-09, a stud 1-10 and a spring washer 1-11. Piston rods of the first mold release air cylinder and the second mold release air cylinder are hinged to the upper mold hinging pin shaft through the fixing plate and a notch formed in an edge of the core plate.

[00101] Twelve groups of core pins are disposed on the bottom surface of the core plate, and each group includes eight core pins. The end portion of the core pin is subjected to side edge grinding treatment, in the same group, four core pins are positioned at one side of a second core rod through hole formed in the core plate, the other four core pins are positioned at the other side of the second core rod through hole, and the core pins are symmetrically disposed. The cross section shape of the core pin is matched with the core hole, and the core pin passes through the ejector rod through the core hole, and extend out of the ejector rod.

[00102] A sprue push plate 1-43 is disposed between the core plate and the fixing plate, twelve core rods are disposed at the bottom surface of the sprue push plate, the shape of the core rod is matched with the shape of sprue portion, and the core rod sequentially passes through the core plate and the upper mold through the second core rod through hole and the first core rod through hole and extends into the sprue portion of the cavity. The sprue push plate is connected to a third driving element fixed to the first workbench, and the third driving element is a sprue push plate driving air cylinder 1-05. The sprue push plate driving air cylinder is disposed between the first mold release air cylinder and the second mold release air cylinder, a piston rod of the sprue push plate driving air cylinder is connected to the sprue push plate through a sprue push plate fixing screw 1-46, and a chamfer is formed at an edge of a bottom surface of the core rod.

[00103] The cavity plate is fixedly connected to a bottom end of a guidepost 1-44, and atop end of the guide post sequentially passes through the upper mold, the core plate and the sprue push plate to be in interference fit connection with a guide hole formed in the fixing plate. The guide post is configured to guide the movement of the upper mold and the sprue push plate.

[00104] A cylinder body of the sprue push plate is connected to the first driving element, such that the connection of the first workbench and the first driving element is realized. The first driving element is a first workbench lifting air cylinder 1-06, a piston rod of the first workbench lifting air cylinder is hinged to the cylinder body of the sprue push plate air cylinder through a pin shaft 1-07, the first workbench lifting air cylinder is fixed onto a third workbench 1-01 through a first workbench lifting air cylinder fastening nut 1-04, and the third workbench is fixed to a top end of the guide rod. Specifically, the top end of the guide rod is provided with a threaded section with a diameter being smaller than the guide rod, forming a step surface, a bottom surface of the third workbench is in contact with the step surface, and a third workbench fastening nut 1-02 is tightly screwed on the threaded section, such that the third workbench, the guide rod and the bottom plate are connected into a whole.

[00105] The lower mold assembly includes a second workbench 1-30. The second workbench is positioned under the first workbench. Guide sleeves are disposed in four corners of the second workbench, and the guide sleeves are fixedly connected to the second workbench. The second workbench can vertically move along the guide rod through the guide sleeve, the second workbench is connected to a fourth driving element, and the fourth driving element is a second workbench first lifting air cylinder 1-23 and a second workbench second lifting air cylinder 1-29. The second workbench is connected to piston rods of the second workbench first lifting air cylinder and the second workbench second lifting air cylinder, and the second workbench first lifting air cylinder and the second workbench second lifting air cylinder are fixed onto the support seat.

[00106] A center position of the second workbench is fixed to the lower mold 1-27 through a press block and a press block fixing screw. The lower mold is provided with twelve sprues 1-2702, the positions of the sprues are aligned with the sprue portion of the cavity, and the two sides of the sprue are provided with core lug bosses matched with a to-be-processed blank. Five lower mold plate cooling water channels 1-2703 are disposed in the lower mold, first water pipe joints 1-2704 are disposed at two ends of the lower mold plate cooling water channel, and the first water pipe joints are connected through a hose. The connection mode is the same as the connection mode of the second water pipe joint and the hose, and is not repeated herein. One of the second water pipe joints is used as a water inlet, and the other second water pipe joint is used as a water outlet. A lower mold plate positioning hole 1-2701 is also formed in the lower mold, the lower mold plate positioning hole is capable of being matched with portions of the pins 1-37 extending to a position under the cavity plate for mold closing positioning, and a chamfer is formed in a top edge of the positioning hole, so that the mold closing is facilitated.

[00107] In the present embodiment, the first water pipe joint and the second water pipe joint used as the water inlets are both connected to a water supply mechanism. The water supply mechanism can introduce cooling water into the lower mold and the cavity plate through the first water pipe joint and the second water pipe joint to fast cool the cavity plate and the lower mold, and thus the blank can be conveniently and fast molded.

[00108] The water supply mechanism includes a water tank 1-19, and the water tank is fixedly connected to a circulation water pump 1-16 through a circulation water pump fastening nut 1-17 and a circulation water pump connecting bolt 1-18. The circulation water pump is connected to a water inlet of a double tee joint 1-33 through a pipeline, the double tee joint is connected to a double tee joint press strip 1-34 through a screw, the double tee joint press strip is fixed onto the support seat through a double tee joint fixing screw 1-35, and a flared fitting 1-32 is disposed at each of the water inlet and water outlets of the double tee joint. One horizontal water outlet of the double tee joint is connected to the first water pipe joint used as the water inlet through a pipeline, and the other vertical water outlet is connected to the second water pipe joint used as the water inlet through a pipeline. The first water pipe joint and the second water pipe joint used as the water outlets are respectively connected to a top water return opening and a horizontal water return opening of the double tee joint through pipelines. The outlets of the double tee joint communicate with the two water return openings, and communicate with the water tank through pipelines, and cooling water in the water tank can enter the double tee joint under the action of a circulation pump. One path enters the lower mold, one path enters the cavity plate, and cooling water flowing out from the lower mold and the cavity plate flows back into the water tank through the outlets of the double tee joint after merging in the double tee joint through the water return openings.

[00109] In the present embodiment, two lubricating oil channels are disposed in each of the first workbench and the second workbench. Positions of the lubricating oil channels are aligned with the positions of the guide sleeves. The two ends of the lubricating oil channel are sealed and blocked through copper plugs 1-22, and the copper plugs are in threaded connection with the first workbench and the second workbench. Needle valve type oil cups 1-31 are respectively in threaded connection with top surfaces of the first workbench and the second workbench, and communicate with the lubricating oil channel, lubricating oil can be added into the lubricating oil channels through the needle valve type oil cup, and the guide sleeve can be timely lubricated to reduce abrasion.

[00110] The grouting mechanism includes a sprue plate 1-28, a lug boss is disposed at a bottom surface of the sprue plate, the sprue plate is connected to the bottom plate through the lug boss and an installing groove formed in the bottom plate.

[00111] A runner is formed in an upper surface of the sprue plate. The runner includes a main channel 1-2801 and sub channels 1-2802, the main channel is positioned in a center position of the sprue plate, the sub channels are symmetrically distributed at two sides of the main channel, and slurry from the main channel can reach each sprue in a balanced way and fully fill each cavity at the same time. The cross section of the sub channel is in a trapezoidal shape, and thus the processing is convenient. Additionally, the arrangement of the sub channels is compact, so that the mold size is reduced, and the stroke is shortened, reducing the temperature pressure loss when the slurry reaches each sprue to the minimum.

[00112] The sprue plate can be attached and in contact with the lower mold fixed to the second workbench through an opening at which the center of the second workbench is disposed, and a tail end of the sub channel is aligned with the sprue of the lower mold, so that the slurry in the sub runner can enter the sprue.

[00113] A center position of the sprue plate is provided with a main runner bushing1-51. The main rubber bushing communicates with the main channel, and is tightly pressed on the sprue plate through a positioning ring 1-48 and a positioning ring fastening screw 1-47. A jet nozzle1-50 is disposed under the main runner bushing, the jet nozzle is fixed onto the bottom plate through a jet nozzle fastening screw 1-49, the jet nozzle communicates with the main runner bushing, and slurry in the jet nozzle can enter the main channel through the main runner bushing. By adopting a design that the positioning ring is separated from the main runner bushing, the centering performance with the jet nozzle is ensured, and the dismounting is convenient. The main channel in the main runner bushing is in a conical shape, the height is smaller, and the cross section is round, so that runner aggregates can be conveniently released. Additionally, the pressure loss is small, and the slurry loss is small.

[00114] The jet nozzle is connected to one end of a grouting pipe 111-14, and the other end of the grouting pipe extends into the slurry barrel 111-16. The slurry barrel is disposed inside the support seat and is configured to contain slurry 111-23, and a top end of the slurry barrel is fixedly connected to a sealing cover111-09 through a slurry barrel fastening screw III-12. A rubber sealing pad 111-17 is disposed between a top cover and a top of the slurry barrel. An oil bath box111-19 is disposed on an outer periphery of the slurry barrel, and the oil bath box is configured to contain an oil material 111-24. A top of the oil bath box is fixedly connected to the top cover through an oil bath box fastening nut 111-02, an oil bath box spring washer 111-03 and an oil bath box connecting bolt III 04. An electric heating pipe fixing seat 111-18 is disposed in a space between a material barrel and the oil bath box, and the electric heating pipe fixing seat is fixedly connected to the top cover through an electric heating pipe fixing seat fastening screw III-11. Heating elements are disposed in four corners of the electric heating pipe fixing seats, and the heating element is an electric heating pipe 111-21. The electric heating pipe is fixedly connected to the electric heating pipe fixing seat through an electric heating pipe fastening screw111-20, and the electric heating pipe can heat the oil material in the oil bath box, so that the heat preservation of the slurry in the slurry barrel is realized, the slurry solidification is avoided, the slurry uniformity is ensured, and the molding quality is ensured. The grouting pipe is fixedly connected to a slurry outlet end cover111-05, the slurry outlet end cover is in threaded connection with the top cover, a slurry outlet end cover sealing ring 111-15 is formed between the slurry outlet end cover and the top cover, and an electric heating device 111-13 sleeves the partial outer periphery of the grouting pipe near the end cover, so that the condensation blockage of the slurry is prevented. A thermocouple 111-01 is further in threaded connection with the top cover portion between the slurry barrel and the oil bath box, and has an effect of converting a temperature signal of the oil material in the oil bath box into a thermoelectromotive signal, and the thermoelectromotive signal is converted through an electric instrument (secondary instrument) into an oil material temperature which is displayed on a control box 1-21. The control box is fixed to the top surface of the support seat. A hand hole is further formed in the top cover. Through the hand hole, materials can be added into the material barrel, and the material barrel can be washed. A hand hole end cover111-06 is disposed at the hand hole, and a hand hole end cover sealing ring111-22 is disposed between the hand hole end cover and the top cover. The hand hole end cover is tightly pressed by a hand hole end cover pressing screw rod 111-07, and the hand hole end cover pressing screw rod is in threaded connection with a transverse clamp block 111-10. Two ends of the transverse clamp block are slidably connected to a position limiting rod fixed to the top cover through chutes, and a rotating push rod111-08 passes through a top end of the hand hole end cover pressing screw rod. The hand hole end cover pressing screw rod is rotated through the rotating push rod, and the transverse clamp block upwards moves along the position limiting rod until touching a position limiting lug boss on a top end of the position limiting rod. At this moment, the transverse clamp block cannot continuously move upwards, and then by continuously rotating the hand hole end cover pressing screw rod, the hand hole end cover pressing screw rod has the downwards moving trends to tightly press the hand hole end cover against the top cover. When the hand hole end cover is dismounted, the hand hole end cover pressing screw rod is rotated in a reverse direction, and at this moment, the transverse clamp block downwards moves until it is in contact with the hand hole end cover and cannot continuously move. Then by continuously rotating the hand hole end cover pressing screw rod, at this moment, the hand hole end cover pressing screw rod upwards moves until leaving away from the transverse clamp block. At this moment, the tight pressing state of the hand hole end cover is relieved, the transverse clamp block is taken down, and the hand hole opening can be completed by opening the hand hole end cover with a tool.

[00115] The slurry barrel is connected to an external compressed air source through a compressed air pipe provided with an electromagnetic valve, the external compressed air source can press the slurry into the grouting pipe by injecting compressed air into the slurry barrel through the electromagnetic valve, and the electromagnetic valve is connected to the control box, and is controlled to operate by the control box.

[00116] The discharging mechanism is disposed at one side of the die casting mechanism, is fixed on the top surface of the support seat, and includes an L-shaped support plate 11-20. The support plate is fixedly connected to the support seat. One end of the support plate is fixedly connected to a bottom end of a fixed mandrel 11-33, and a first driving mechanism and a second driving mechanism in vertical arrangement are disposed on the support plate. The first driving mechanism is connected to a first tray, and the second driving mechanism is connected to a second tray.

[00117] The first driving mechanism includes a first discharging driving element. The discharging driving element is a first rack driving air cylinder 11-16. The first rack driving air cylinder is fixed in a fixing cavity formed by a first air cylinder fixing cover 11-15 and a first air cylinder fixing seat 11-13. The first air cylinder fixing cover and the first air cylinder fixing seat are fixed through a first air cylinder fixing cover connecting screw 11-17, and the first air cylinder fixing seat is fixed to the support plate through a first air cylinder fixing seat connecting bolt 11-14, a first air cylinder fixing seat fastening nut 11-37 and a first air cylinder fixing seat spring washer 11-38. A piston rod of the first rack driving air cylinder is connected to a first rack 11-10 through a first hinging buckle pin 11-11 and a first hinging buckle 11-12. The first rack is slidably connected to a first rack guide groove 11 09, and the first rack guide groove cooperates with a positioning hole formed in the support plate through two first guide groove positioning pins 11-06 disposed along a diagonal line for positioning, and is fixedly connected to the support plate through a first rack guide groove fastening nut 11-34, a first rack guide groove spring washer 11-35 and a first rack guide groove connecting bolt 11-36. The first rack is meshed with a first gear 11-08, the first gear is rotatably connected to the fixed mandrel through a thrust ball bearing 11-31, and an edge position of the first gear is fixedly connected to one end of a first connecting element through a first tray connecting bolt 11-04. In the present embodiment, the first connecting element connected to an edge position of the first rack is of a V shaped structure, and includes a first connecting portion and a second connecting portion in obtuse angle arrangement. An end portion of the first connecting portion is fixedly connected to the first gear, and the first tray 11-01 is fixed to the second connecting portion. The first tray includes a first bracket 11-0107 and a first tray side frame 11-0101, the second connecting portion is fixedly connected to the first bracket, and a material pushing driving element is disposed on a top surface of the second connecting portion. The material pushing driving element is a third driving air cylinder 11-0104, the third driving air cylinder is fixed to the second connecting portion through a third air cylinderfixing cover 11-0102 and a third air cylinderfixing seat 11-0105, and the third air cylinder fixing cover and the third air cylinder fixing seat are fixed through a third air cylinder fixing cover connecting screw 11-0103, forming a cavity for fixing the third air cylinder. A piston rod of the third air cylinder is connected to the first tray side frame 11-0101 through a third air cylinder connecting nut 11-0106, the first tray side frame can be disposed in an edge position of the first tray, the third air cylinder can drive the first tray side frame to move, and thus materials on the first tray are further pushed out.

[00118] The second driving mechanism includes a second discharging driving element. The second discharging driving element is a second rack driving air cylinder 11-18. The second rack driving air cylinder is fixed in a fixing cavity formed by a second air cylinder fixing cover 11-21 and a second air cylinder fixing seat 11-19. The second air cylinder fixing cover and the second air cylinder fixing seat are fixed through a second air cylinder fixing cover connecting screw 11-23, and the second air cylinder fixing seat is fixed onto the support plates through a second air cylinder fixing seat connecting bolt 11-22. A piston rod of the second rack driving air cylinder is connected to a second rack 11-27 through a second hinging buckle 11-24 and a second hinging buckle screw II-

, the second rack is slidably connected to a second rack guide groove 11-28, and the second rack guide groove cooperates with a positioning hole formed in the support plate through two second rack guide groove positioning pins 11-26 disposed along a diagonal line for positioning, and is fixedly connected to the support plate through a bolt. The second rack is meshed with a second gear 11-29, the second gear is rotatably connected to the fixed mandrel through a thrust ball bearing, an edge of the second gear is fixedly connected to the connecting element through a second tray connecting bolt 11-02 and a second connecting element, the second connecting element is of an L-shaped structure, and includes a third connecting portion and a fourth connecting portion in vertical arrangement. The third connecting portion is fixedly connected to an edge position of the second gear, and the fourth connecting portion is fixedly connected to the second tray 11-30. The second tray includes a second bracket 11-3001 and a second tray side frame 11-3002, the second bracket is fixedly connected to the fourth connecting portion, and a material pushing driving element is also disposed on the fourth connecting portion. The material pushing driving element is a fourth driving air cylinder 11-3004, the fourth driving air cylinder is fixed by a fixing cavity formed by a fourth air cylinder fixing seat 11-3006 and a fourth air cylinder fixing cover 11-3005, and the fourth air cylinder fixing seat and the fourth air cylinder fixing cover are fixed through a fourth air cylinder fixing cover connecting screw 11-3003. A piston rod of the fourth air cylinder is connected to the second tray side frame 11-3002 through a fourth air cylinder connecting nut 11-3007, the second tray side frame can be disposed at an edge of the second bracket, the fourth air cylinder pushes the second tray side frame to move, and thus materials in the second bracket can be pushed out.

[00119] In the present embodiment, a third sleeve 11-32, a thrust ball bearing, a second gear, a thrust ball bearing, a second sleeve 11-03, a thrust ball bearing, a first gear, a thrust ball bearing and a first sleeve 11-05 sequentially sleeve the fixed mandrel from bottom to top, a fastening nut 11 07 is tightly screwed on a top end of the fixed mandrel, and thus the above elements are tightly pressed and fixed. The positions of the first gear and the second gear relative to the fixed mandrel can be changed by adjusting the heights of the three sleeves.

[00120] In the present embodiment, all working elements such as the air cylinders, the circulation water pump, the electromagnetic valve, the thermocouple, the electric heating pipe, and the electric heating device are connected to the control box, and are controlled to automatically work by the control box.

Embodiment 2

[00121] The present embodiment discloses a working method of the automatic hot die casting device having multiple working positions according to Embodiment 1:

[00122] In an initial state, the third workbench is positioned above the sprue plate and maintains a set distance, the cavity plate and the lower mold are in a separated state, the sprue push plate and the fixing plate are in an attached state, the upper mold and the core plate are in an attached state, and this position is a first working position.

[00123] Under the control of the control box, compressed air is input into an air inlet cavity of the first workbench lifting air cylinder to push the first workbench to descend. At the same time, compressed air is input into air exhaust cavities of the second workbench first lifting air cylinder and the second workbench second lifting air cylinder, the third workbench descends, the cavity plate is attached to the lower mold, the lower mold is attached to the sprue plate to complete mold closing, a cavity wall of the cavity, the bottom surface of the ejector rod, an upper surface of the lower mold, the core lug boss and the core pin form a grouting cavity, and this position is a second working position. The core rod is controlled to extend into the cavity portion of the cavity, and the bottom of the core rod is flush with a bottom surface of the cavity portion. Due to the chamfer structure at the edge of the bottom surface of the core rod, through the cooperation with the sprue in the lower mold, a small grouting opening is formed, so that slurry from the sub channel is accelerated to fast and fully fill the cavity, facilitating the mold filling. The size of the sprue is much smaller than that of the cavity portion, so that after the cavity is fully filled with the slurry, the sprue can be fast cooled and sealed, and the slurry is prevented from reversely flowing. Moreover, sprue aggregates can be conveniently separated from the blank. Additionally, the small sprue has great friction resistance on melt. As a result, the temperature of the melt is obviously raised, the viscosity is reduced, the flowability is increased, and thin-wall complicated products can be favorably formed, and the blank with a clear appearance can be favorably obtained. The small sprue is favorable for the separation of the runner aggregates and the blank, and the sprue can be conveniently and automatically cut, so that the blank can be conveniently corrected, and the marks are small. Through the small sprue, the molding period is shortened, and the production speed is accelerated. Through the small sprue, the pressure preservation feeding time can be controlled and shortened to reduce inner stress of the blank and prevent deformation and breakage.

[00124] The air inlet cavity of the first workbench lifting air cylinder, and the air exhaust cavities of the second workbench first lifting air cylinder and the second workbench second lifting air cylinder continuously maintain a pressure preservation state, the electromagnetic valve is opened, compressed air is injected into the slurry barrel, the slurry passes through the grouting pipe, the jet nozzle, the main runner bushing, the main channel and the sub channel and then enters the cavity to complete die casting, such that a blank 1-53 is formed. The structure of the blank is as shown in FIG. 68 to FIG. 70, and at this moment, the position is a third working position.

[00125] Compressed air is input into air inlet cavities of the second workbench first lifting air cylinder and the second workbench second lifting air cylinder, and compressed air is input into an air exhaust cavity of a first workbench lifting cavity, so that the first workbench and the second workbench upwards move to set positions at the same time, and the mold closing state is kept unchanged. At the same time, compressed air is input into the air inlet cavity of the second rack driving air cylinder, the second rack pushes the second gear to rotate for 900, and the second bracket moves to a position right under the lower mold. At this moment, the sprue push plate is pressurized to descend under the action of the sprue push plate air cylinder to push out slurry opening waste materials in the sprue of the lower mold to complete grouting opening cutting. At the same time, compressed air is input into the air exhaust cavity of the second rack driving air cylinder, and the second rack pushes the second gear to reversely rotate for 90° to bring away the slurry opening waste materials. Then compressed air is input into the air inlet cavity of a fourth driving air cylinder to push the second tray side frame to slide, such that the grouting opening waste materials in the second bracket are pushed away. Meanwhile, the fourth driving air cylinder is reset, and at this moment, the position is a fourth working position.

[00126] Compressed air is input into the air exhaust cavity of the first workbench lifting air cylinder, the first workbench upwards moves, the cavity plate is separated from the lower mold to complete mold release, and at this moment, the position is a fifth working position.

[00127] The first rack driving air cylinder pushes the first rack to move, and the first gear is driven to rotate, so that the first bracket is positioned under the cavity plate. At the same time, the upper mold is downwards pressed under the pushing by the first mold release air cylinder and the second mold release air cylinder, a die casted blank is ejected out of the cavity to fall into the first bracket. The first rack driving air cylinder pushes the first rack to move, and the first gear is driven to reversely rotate, so that the blank and the first bracket are brought away. Then the third driving air cylinder pushes the first tray side frame to slide to push away the blank 1-53. A piston rod of the third driving air cylinder is reset, and at this moment, the position is a sixth working position. Sor far, the whole die casting flow process is completed, i.e., six work procedures including mold closing, grouting, pressure preservation, grouting opening cutting, mold release, and blank discharging, are sequentially completed at the six working positions, the hot die casting molding of the blank is automatically completed, the automation degree is high, the production efficiency is high, and the work intensity of workers is greatly reduced.

[00128] The specific implementations of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the protection scope of the present invention. Those skilled in the art should understand that various modifications or deformations may be made without creative efforts based on the technical solutions of the present invention, and such modifications or deformations shall fall within the protection scope of the present invention.

Claims

1. An automatic hot die casting device having multiple working positions, comprising: a die casting mechanism, comprising an upper mold assembly and a lower mold assembly, wherein the upper mold assembly comprises a first workbench capable of vertically moving, the first workbench is fixedly connected to a cavity plate, the cavity plate is provided with a cavity, an upper mold is disposed above the cavity plate, the upper mold is provided with an ejector rod extending into the cavity, the upper mold is capable of driving the ejector rod to move in the cavity, the lower mold assembly comprises a second workbench capable of vertically moving, and the second workbench is fixed to a lower mold provided with a sprue; a grouting mechanism, comprising a slurry barrel, wherein the slurry barrel is connected to a sprue plate through a grouting pipe, the sprue plate is provided with a runner communicating with the grouting pipe, and the runner is capable of communicating with the sprue; a discharging mechanism, comprising a first bracket, wherein the first bracket is connected to a first driving mechanism capable of driving the first bracket to move to a position under the cavity plate; further comprises a second bracket, and the second bracket is connected to a second driving mechanism capable of driving the second bracket to move to a position under the lower mold, wherein the first driving mechanism and the second driving mechanism are disposed on a support plate fixedly disposed, each of the first driving mechanism and the second driving mechanism comprises a discharging driving element, the discharging driving element is fixed onto the support plate, and is connected to a rack, the rack is slidably connected to the support plate, the rack is meshed with a gear, the gear is rotatably connected to a fixed mandrel fixed to the support plate, an edge of the gear is connected to one end of a connecting element, the connecting element of the first driving mechanism is connected to the first bracket, and the connecting element of the second driving mechanism is connected to the second bracket; and a material pushing driving element is fixed onto the connecting element of each of the first driving mechanism and the second driving mechanism, and the material pushing driving element is connected to a tray side frame and capable of driving the tray side frame to move so as to push out materials on the first bracket and the second bracket.

2. The automatic hot die casting device having multiple working positions according to claim 1, wherein the cavity plate is fixedly connected to a core plate disposed above the cavity plate, the core plate is fixed to the first workbench, the first workbench is connected to a first driving element fixed to a third workbench, the third workbench is fixedly disposed, the upper mold is disposed between the cavity plate and the core plate, the upper mold is connected to a second driving element fixed to the second workbench, and the second driving element is capable of driving the upper mold to move to further drive the ejector rod to move in the cavity.

3. The automatic hot die casting device having multiple working positions according to claim 1, wherein a sprue push plate is disposed above the upper mold, and is provided with a core rod penetrating through the upper mold and the cavity plate and being capable of extending into the sprue, a chamfer is disposed at an edge of a bottom end of the core rod, the sprue push plate is connected to a third driving element disposed at the first workbench, and the third driving element is capable of driving the core rod to extend into the sprue.

4. The automatic hot die casting device having multiple working positions according to claim 1, wherein each of the cavity plate and the lower mold is provided with a cooling water channel, the cooling water channel is connected to a water supply mechanism, and the water supply mechanism is capable of introducing cooling water into the cooling water channel.

5. The automatic hot die casting device having multiple working positions according to claim 1, wherein the second workbench is connected to a fourth driving element, the fourth driving element is capable of driving the second workbench to vertically move, and the fourth driving element is fixedly disposed.

6. The automatic hot die casting device having multiple working positions according to claim 1, wherein the sprue plate is provided with a main runner bushing, the main runner bushing communicates with the runner, the main runner bushing further communicates with a jet nozzle, the jet nozzle is fixedly disposed, and the jet nozzle is connected to the grouting pipe.

7. The automatic hot die casting device having multiple working positions according to claim 1, wherein the slurry barrel is disposed inside an oil bath box, and a heating element is disposed in a space between the slurry barrel and the oil bath box.

8. A working method of the automatic hot die casting device having multiple working positions according to any one of claims 1 to 7, wherein the first workbench and the second workbench vertically move so that the cavity plate is attached to the lower mold, and the lower mold is attached to the sprue plate to complete mold closing, at the moment, the sprue communicates with the cavity, the runner communicates with the sprue, the grouting mechanism operates, slurry in the slurry barrel enters the cavity through the grouting pipe, the runner and the sprue for die casting molding, after the die casting molding is completed, the cavity plate and the lower mold maintained in a mold closing state move to a set position, the first workbench and the second workbench move far away from each other so that the cavity plate is separated from the lower mold to complete mold release, the first tray moves to a position right under the cavity plate under the action of the first driving mechanism, the ejector rod moves in the cavity, a die casted blank is ejected out of the cavity, and the blank falls into the first tray.

Shenyang Hongyang Precision Ceramics Co.,Ltd. Patent Attorneys for the Applicant SPRUSON&FERGUSON