CN109014117B - A mould preheating device for liquid forging production - Google Patents
A mould preheating device for liquid forging production Download PDFInfo
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- CN109014117B CN109014117B CN201810784926.2A CN201810784926A CN109014117B CN 109014117 B CN109014117 B CN 109014117B CN 201810784926 A CN201810784926 A CN 201810784926A CN 109014117 B CN109014117 B CN 109014117B
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- box body
- group
- preheating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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Abstract
The invention discloses a die preheating device for liquid die forging production, which comprises a high-temperature-resistant conveying belt, a preheating box, a heating center and a positioning assembly, wherein the heating center comprises a box body, a flame spray head group and a first air pipe joint, the left side surface and the right side surface of the box body are respectively provided with an inlet and an outlet, the conveying belt penetrates through the box body, the flame spray head group comprises a top spray group, a side spray group, a bottom spray assembly and an end surface spray group, the top spray group consists of four flame spray heads, the four flame spray heads are symmetrically arranged at the top of the box body along the central line of the length direction of the box body, the four flame spray heads are arranged in a trapezoid shape, and the side spray group and the end surface spray group consist of eight flame spray heads. Greatly improves the preheating effect and reduces the pollution in the preheating process.
Description
Technical Field
The invention relates to the technical field of auxiliary equipment of liquid forging machines, in particular to a die preheating device for liquid forging production.
Background
In the liquid forging, high-temperature liquid metal is directly poured into a die, the surface temperature of a die cavity of the die is rapidly raised by heat emitted during solidification, and thermal stress is generated due to the temperature difference in the direction of the die wall of the die, so that the die needs to be uniformly preheated before use to reduce the temperature difference and the thermal stress. The mold temperature is too high, so that the mold sticking of a workpiece is easy to occur, and the demolding is difficult; the temperature of the die is too low, so that the quality of the product is difficult to ensure, such as cold shut, surface crack and other defects. Although the preheating treatment of the mold can be realized by the existing preheating process, the mold preheating tool used at the present stage has the phenomena of concentrated flame, no dispersion, long time consumption and uneven heated temperature on the surface of the mold, so that the preheating efficiency is low, the preheating effect is not ideal, and the product is easy to scrap.
Disclosure of Invention
The invention aims to provide a die preheating device for liquid forging production.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a mould preheating device for liquid forging production, includes high temperature resistance conveyer belt, preheating cabinet, heating center and locating component, the heating center includes box, flame jet head group, trachea joint one, the side is provided with import and export respectively about the box, the conveyer belt passes the box, flame jet head group includes top jet group, side jet group, bottom jet subassembly and terminal surface jet group, top jet group comprises four flame jet heads, these four flame jet heads with box length direction central line symmetric arrangement is in the top of box, these four flame jet heads are trapezoidal arrangement, side jet group with terminal surface jet group comprises eight flame jet heads, side jet group's flame jet head with the flame jet head of terminal surface jet group divide into two rows from top to bottom equally, the end face spraying groups are positioned at the outer sides of the side face spraying groups, the bottom spraying assembly consists of a plurality of flame spraying heads and is arranged at the bottom of the front side face and the rear side face of the box body, the first air pipe connector is arranged at the central position of the top of the box body and is communicated with an external air draft device, the preheating box comprises an upper box body and a lower box body, a top through hole is arranged at the position of the top of the upper box body, which corresponds to the top spraying group, side face through holes are arranged at the front side face and the rear side face of the upper box body, which correspond to the side face spraying groups, the left side face and the right side face of the upper box body and the lower box body are provided with end face through holes, the front side face and the rear side face of the bottom of the lower box body are provided with bottom through holes, which correspond to the bottom spraying assembly, and the top, the air vent is provided with a second air pipe connector, the first air pipe connector is detachably connected with the second air pipe connector, and the positioning assembly is arranged in the box body and used for detecting that the preheating box arrives.
Preferably, the inner side surface of the inlet of the first air pipe connector is an arc-shaped surface I, and a high-temperature-resistant filter layer is filled in the first air pipe connector.
Preferably, the second air pipe joint comprises an annular base, an annular pipe, a first spring and a second spring, the annular base is arranged at the edge of the upper opening of the air vent, an annular sliding groove is formed in the upper end of the annular base, a sliding block assembly is arranged at the bottom of the annular pipe and comprises a sliding block and a guide rod, the guide rod is fixedly connected to the bottom of the annular pipe, the sliding block is fixedly connected to the end of the guide rod, the sliding block assembly is slidably mounted in the annular sliding groove, the first spring is sleeved on the guide rod, one end of the second spring is fixedly connected to the bottom of the annular sliding groove and fixedly connected with the bottom of the sliding block, the top of the annular sliding groove is sealed by a sealing cover, the outer.
Furthermore, a first flow passage, a second flow passage, a third flow passage, a fourth flow passage, a first heat conducting plate, a second heat conducting plate, a third heat conducting plate and a fourth heat conducting plate are arranged in the upper box body and the lower box body, a first groove is formed in the top of the inner side surface of the upper box body, a top through hole is formed in the first groove, the first flow passage is positioned at the bottom of the first groove, two ends of the first flow passage are communicated with the top through holes in the same row, grooves II are formed in the front side surface and the rear side surface of the inner side surface of the upper box body and the lower box body, side through holes are formed in the second groove, the second flow passage is positioned at the bottom of the second groove, two ends of the second flow passage are respectively communicated with the side through holes in the same row, grooves III are formed in the left side surface and the right side surface of the inner side surface of the upper box, the bottom of the inner side face of the lower box body is provided with a groove four, the flow channel four is located in the groove four, two ends of the flow channel are communicated with the bottom through hole located in the same row respectively, a first heat conducting plate is fixedly installed in the groove one, an outlet one is arranged at the middle of the projection of the flow channel, a second heat conducting plate is fixedly installed in the groove two, an outlet two is arranged at the middle of the projection of the flow channel, three heat conducting plates are fixedly installed in the groove three, an outlet three is arranged at the middle of the projection of the flow channel, four heat conducting plates are fixedly installed in the groove four, and an outlet four is arranged at the middle of the projection of the.
Preferably, the distance between the two rows of flame injection heads of the end surface injection group is smaller than the distance between the two rows of flame injection heads of the side surface injection group.
The invention has the following effects:
1. firstly, a die to be preheated is placed in a preheating box and then is conveyed into a heating center by a conveying belt, a positioning component is arranged in the heating center, the positioning component detects that the preheating box reaches a preset position, the preset position refers to that a gas pipe connector I is communicated with a gas pipe connector II, a flame injection head is respectively opposite to a top through hole, a side through hole, an end face through hole and a bottom through hole, flame injection enters the top through hole, the side through hole, the end face through hole and the bottom through hole to realize synchronous heating of each end face of the preheating box, the flame heats the preheating box and a heat conduction plate I, a heat conduction plate II, a heat conduction plate III and a heat conduction plate IV which are arranged in the preheating box, the heat conduction plate I, the heat conduction plate II, the heat conduction plate III and the heat conduction plate IV have good heat conduction performance, and, the heat can be transferred quickly, meanwhile, the contact area with the die is large, and the local overhigh temperature of the die is avoided.
2. The inner side surface of the preheating box is additionally provided with an outlet I, an outlet II, an outlet III, an outlet IV and a pipe connector II communicated with the pipe connector I, the pipe connector I is connected with an external air draft device, when air draft action exists, negative pressure exists in the preheating box, external air can enter the preheating box, the air flows upwards, the outlets I, II, III and IV arranged in the middle of the flow channel I, the flow channel II, the flow channel III and the flow channel IV are the only outlets for spraying flame into the preheating box, the distance for heating the heat-conducting plate by the flame is longer under the guidance of the air, and the flowing air absorbs waste gas possibly existing in the process of preheating the die.
In conclusion, the heating on the surface of the die is more uniform, the waste gas existing in the heating process can be collected, the preheating effect is greatly improved, and the pollution in the preheating process is reduced.
Drawings
FIG. 1 is a cross-sectional view of a heating center of the present invention;
FIG. 2 is a cross-sectional view of a preheat chamber of the present invention;
FIG. 3 is a top plan view of the preheat chamber of the present invention;
FIG. 4 is a front and rear side elevational view of the preheating chamber of the present invention;
FIG. 5 is a front view of the right and left sides of the preheating chamber of the present invention;
FIG. 6 is a top view of the bottom of the preheating chamber of the present invention;
FIG. 7 is a top cross-sectional view of a preheat chamber of the present invention;
FIG. 8 is a bottom cross-sectional view of the preheating chamber of the present invention;
FIG. 9 is an enlarged view of the invention at A;
FIG. 10 is a cross-sectional view of the air tube connector of the present invention.
Wherein: a conveyer belt-1, a preheating box-2, a heating center-3, a high-temperature resistant heat insulation curtain-4, an upper box body-20, a lower box body-21, a top through hole-22, a side through hole-23, an end through hole-24, a bottom through hole-25, a vent hole-26, a gas pipe joint-27, a box body-30, a gas pipe joint-31, a top spraying group-32, a side spraying group-33, a bottom spraying component-35, an end spraying group-34, an arc surface-36, a high-temperature resistant filter layer-37, an annular base-270, an annular pipe-271, a spring-272, a spring-273, an annular chute-274, a slide block component-275, a slide block-276, a guide rod-278, a sealing cover-279, an arc surface-280, a high-temperature resistant heat insulation curtain, The heat exchanger comprises a first flow channel-40, a second flow channel-41, a third flow channel-42, a fourth flow channel-43, a first heat conducting plate-44, a second heat conducting plate-45, a third heat conducting plate-46, a fourth heat conducting plate-47, a first groove-48, a second groove-49, a third groove-50, a fourth groove-51, a first outlet-52, a second outlet-53, a third outlet-54 and a fourth outlet-55.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Referring to fig. 1-8, a mold preheating device for liquid forging production comprises a high temperature resistant conveyor belt 1, a preheating box 2, a heating center 3 and a positioning assembly (not shown), wherein the heating center 3 comprises a box body 30, a flame spray head group and a first air pipe joint 31, the left side and the right side of the box body 30 are respectively provided with an inlet and an outlet, a high temperature resistant heat insulation curtain 4 is arranged at the inlet and the outlet, the conveyor belt 1 passes through the box body 30, the flame spray head group comprises a top spray group 32, a side spray group 33, a bottom spray assembly 35 and an end face spray group 34, the top spray group 32 comprises four flame spray heads, the four flame spray heads are symmetrically arranged at the top of the box body 30 along the central line in the length direction of the box body 30, the four flame spray heads are arranged in a trapezoid shape, and the side spray group 33 and the end face spray group, the flame injection heads of the side injection group 33 and the flame injection heads of the end injection group 34 are equally divided into an upper row and a lower row which are symmetrically arranged at the left side and the right side of the front side and the rear side of the box body 30, the end injection group 34 is positioned at the outer side of the side injection group 33, the distance between the two rows of flame injection heads of the end injection group 34 is smaller than that between the two rows of flame injection heads of the side injection group 33, the bottom injection assembly 35 consists of a plurality of flame injection heads and is arranged at the bottom of the front side of the box body 30, the first air pipe joint 31 is arranged at the central position of the top of the box body 30 and is communicated with an external air draft device, the preheating box 2 comprises an upper box body 20 and a lower box body 21, a top through hole 22 is arranged at the position of the top of the upper box body 20 corresponding to the top injection group 32, side through holes 23 are arranged at the front side and the rear side of the upper box, the front side and the rear side of the bottom of the lower box body 21 are provided with bottom through holes 25 corresponding to the bottom spraying assembly 35, the top of the upper box body 20 is provided with a vent hole 26, the vent hole 26 is provided with a second air pipe connector 27, the first air pipe connector 31 is detachably connected with the second air pipe connector 27, and the positioning assembly is arranged in the box body 30 and used for detecting that the preheating box 2 arrives.
Referring to fig. 10, the inner side surface of the inlet of the first air pipe connector 31 is an arc surface 36, and a high temperature resistant filter layer 37 is filled in the first air pipe connector 31.
Referring to fig. 9, the second air pipe joint 27 includes an annular base 270, an annular pipe 271, a first spring 272 and a second spring 273, the annular base 270 is disposed at the edge of the upper opening of the air vent 26, an annular sliding groove 274 is disposed at the upper end of the annular base 271, a slider assembly 275 is disposed at the bottom of the annular pipe 271, the slider assembly 275 includes a slider 276 and a guide rod 278, the guide rod 278 is fixedly connected to the bottom of the annular pipe 271, the slider 276 is fixedly connected to the end of the guide rod 278, the slider assembly 275 is slidably mounted in the annular sliding groove 274, the first spring 272 is sleeved on the guide rod 278, one end of the second spring 273 is fixedly connected to the bottom of the annular sliding groove 274 and fixedly connected to the bottom of the slider 276, the top of the annular sliding groove 274 is sealed by a sealing cover 279, the outer side surface of.
Referring to fig. 1-8, a first flow channel 40, a second flow channel 41, a third flow channel 42, a fourth flow channel 43, a first heat conducting plate 44, a second heat conducting plate 45, a third heat conducting plate 46 and a fourth heat conducting plate 47 are disposed in the upper case 20 and the lower case 21, a first groove 48 is disposed on the top of the inner side of the upper case 20, a first top through hole 22 is disposed in the first groove 48, the first flow channel 40 is disposed at the bottom of the first groove 48, and both ends of the first flow channel 40 are communicated with the top through holes 22 in the same row, a second groove 49 is disposed on the front and rear sides of the inner sides of the upper case 20 and the lower case 21, a second side through hole 23 is disposed in the second groove 49, a second flow channel 41 is disposed at the bottom of the second groove 49, and both ends of the second flow channel are respectively communicated with the side through holes 23 in the same row, a third groove 50 is disposed on the left and right sides of the inner sides of the upper case 20, the bottom of the inner side face of the lower box body 21 is provided with a groove four 51, the flow channel four 43 is located in the groove four 51, two ends of the flow channel four 43 are respectively communicated with the bottom through holes 25 located in the same row, the first heat conducting plate 44 is fixedly installed in the groove one 48, the first outlet 52 is arranged in the middle of the projection of the flow channel one 40, the second heat conducting plate 45 is fixedly installed in the groove two 49, the second outlet 53 is arranged in the middle of the projection of the flow channel two 41, the third heat conducting plate 46 is fixedly installed in the groove three 50, the third outlet 54 is arranged in the middle of the projection of the flow channel three 42, the fourth heat conducting plate 47 is fixedly installed in the groove four 51, and the fourth outlet 55.
The heat conduction plate I44, the heat conduction plate II 45, the heat conduction plate III 46 and the heat conduction plate IV 47 conduct heat to the surface of the preheating box 2 respectively, because flame directly heats the heat conduction plate I44, the heat conduction plate II 45, the heat conduction plate III 46 and the heat conduction plate IV 47, the heat conduction plate is made of high-efficiency heat conduction materials, an outlet I52, an outlet II 53, an outlet III 54 and an outlet IV 55 which are arranged on the heat conduction plate are unique outlets of flame, the flame can be sprayed in the heat conduction plate for a longer distance, and the waste gas generated in the preheating process can be guided out of the heating center 3 through a gas pipe connector I31.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a mould preheating device for liquid forging production, its characterized in that, includes high temperature resistance conveyer belt, preheating cabinet, heating center and locating component, the heating center includes box, flame jet head group, trachea joint one, the side is provided with import and export respectively about the box, the conveyer belt passes the box, flame jet head group includes that top sprays group, side spray group, bottom spray assembly and terminal surface and sprays the group, top sprays the group and comprises four flame jet heads, these four flame jet heads with box length direction central line symmetrical arrangement is in the top of box, these four flame jet heads are trapezoidal arrangement, side spray the group with the terminal surface sprays the group and comprises eight flame jet heads, the flame jet head that side spray the group with the flame jet head that the terminal surface sprays the group divide into two rows from top to bottom, the end face spraying groups are positioned at the outer sides of the side face spraying groups, the bottom spraying assembly consists of a plurality of flame spraying heads and is arranged at the bottom of the front side face and the rear side face of the box body, the first air pipe connector is arranged at the central position of the top of the box body and is communicated with an external air draft device, the preheating box comprises an upper box body and a lower box body, a top through hole is arranged at the position of the top of the upper box body, which corresponds to the top spraying group, side face through holes are arranged at the front side face and the rear side face of the upper box body, which correspond to the side face spraying groups, the left side face and the right side face of the upper box body and the lower box body are provided with end face through holes, the front side face and the rear side face of the bottom of the lower box body are provided with bottom through holes, which correspond to the bottom spraying assembly, and the top, the air vent is provided with a second air pipe connector, the first air pipe connector is detachably connected with the second air pipe connector, the positioning component is arranged in the box body and used for detecting that the preheating box arrives, the upper box body and the lower box body are internally provided with a first flow passage, a second flow passage, a third flow passage, a fourth flow passage, a first heat conducting plate, a second heat conducting plate, a third heat conducting plate and a fourth heat conducting plate, the top of the inner side surface of the upper box body is provided with a first groove, a through hole at the top is arranged in the first groove, the first flow passage is positioned at the bottom of the first groove, two ends of the first flow passage are communicated with the through holes at the top in the same row, the front side surface and the rear side surface of the inner side surface of the upper box body and the inner side surface of the lower box body are respectively provided with a second groove, the second flow passage is positioned at the bottom of the second groove, the end face through hole sets up in recess three, the runner tribit is in recess three, and both ends communicate with the end face through hole that is located same one row respectively, the internal side bottom of nowel is provided with recess four, runner four is located recess four, and both ends communicate with the bottom through hole that is located same one row respectively, and a heat-conducting plate fixed mounting is in recess one, and is provided with export one in the projected middle part department of runner, and two fixed mounting of heat-conducting plate are in recess two, and are provided with export two in the projected middle part department of runner two, and three fixed mounting of heat-conducting plate is in recess three, and is provided with export three in the projected middle part department of runner three, and four fixed mounting of heat-conducting plate are in recess four, and are provided with export four in the projected middle part department of runner.
2. The die preheating device for liquid die forging production according to claim 1, wherein the inlet inner side surface of the first gas pipe joint is an arc-shaped surface I, and a high-temperature resistant filter layer is filled in the first gas pipe joint.
3. The mold preheating device for liquid die forging production according to claim 2, wherein the second air pipe joint comprises an annular base, an annular pipe, a first spring and a second spring, the annular base is arranged at the edge of the upper opening of the vent hole, an annular chute is arranged at the upper end of the annular base, a slider assembly is arranged at the bottom of the annular pipe, the slider assembly comprises a slider and a guide rod, the guide rod is fixedly connected to the bottom of the annular pipe, the slider is fixedly connected to the end of the guide rod, the slider assembly is slidably mounted in the annular chute, the first spring is sleeved on the guide rod, the second spring is fixedly connected to the bottom of the annular chute and fixedly connected to the bottom of the slider, the top of the annular chute is sealed by a sealing cover, the outer side surface of the upper opening of the annular pipe is a.
4. The die preheating apparatus for liquid die forging production according to claim 1, wherein a pitch of the two rows of flame injection heads of the end face spray group is smaller than a pitch of the two rows of flame injection heads of the side face spray group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784926.2A CN109014117B (en) | 2018-07-17 | 2018-07-17 | A mould preheating device for liquid forging production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810784926.2A CN109014117B (en) | 2018-07-17 | 2018-07-17 | A mould preheating device for liquid forging production |
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| CN109014117A CN109014117A (en) | 2018-12-18 |
| CN109014117B true CN109014117B (en) | 2020-02-11 |
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| CN201810784926.2A Active CN109014117B (en) | 2018-07-17 | 2018-07-17 | A mould preheating device for liquid forging production |
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