CN117245071B - Die casting mold cooling device and method thereof - Google Patents
Die casting mold cooling device and method thereof Download PDFInfo
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- CN117245071B CN117245071B CN202311219352.1A CN202311219352A CN117245071B CN 117245071 B CN117245071 B CN 117245071B CN 202311219352 A CN202311219352 A CN 202311219352A CN 117245071 B CN117245071 B CN 117245071B
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- 238000001816 cooling Methods 0.000 title claims abstract description 159
- 238000004512 die casting Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 293
- 239000000498 cooling water Substances 0.000 claims abstract description 107
- 230000007246 mechanism Effects 0.000 claims description 40
- 238000007789 sealing Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 9
- 208000028659 discharge Diseases 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- SAPGTCDSBGMXCD-UHFFFAOYSA-N (2-chlorophenyl)-(4-fluorophenyl)-pyrimidin-5-ylmethanol Chemical compound C=1N=CN=CC=1C(C=1C(=CC=CC=1)Cl)(O)C1=CC=C(F)C=C1 SAPGTCDSBGMXCD-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
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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
-
- 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
- B22D17/32—Controlling equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of die cooling, and discloses a die-casting die cooling device and a method thereof, wherein the die-casting die comprises a die-casting die, a circular main pipe and a plurality of circular secondary pipes are arranged in the die-casting die, the plurality of circular secondary pipes are arranged on the inner side of the circular main pipe, a cooling pipeline is rotatably arranged in the die-casting die, the other end of the cooling pipeline penetrates through the circular main pipe and the plurality of circular secondary pipes, an output water pipe is divided into a full-waterway main pipe, a half-waterway main pipe, a full-waterway secondary pipe and a half-waterway secondary pipe, cooling water in the die-casting die can be switched into different water flow operation modes according to the temperature difference of the environment temperature and the cooling water, the cooling water can be discharged in a half-way when the cooling water with smaller temperature difference fails in advance, the time is saved, the cooling water passes in the circular main pipe and the circular secondary pipes, the cooling effect is not influenced, and the cooling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of mold cooling, in particular to a die casting mold cooling device and a die casting mold cooling method.
Background
The die casting die is a tool for casting metal parts, and can complete the die casting process on a special die casting machine. The basic technological process of die casting is as follows: the molten metal is cast and filled into the cavity of the mold at low or high speed, the mold has movable cavity surface, and the molten metal is pressurized and forged along with the cooling process of the molten metal, so that the shrinkage cavity and shrinkage porosity defect of the blank are eliminated, and the internal structure of the blank reaches the forged broken grains.
The cooling system of the die casting mold is a device for controlling the temperature of the mold and accelerating the cooling of the casting, and is generally composed of a temperature control unit, a pump, a hose, a supply and recovery device, a cooling pipe in the mold, and the like. Two cooling modes, air cooling and water cooling, are typically used. For the parts of the die-casting mould which are difficult to be cooled by water, an air cooling mode can be adopted. The water cooling is to set cooling water channel in the mold to make the cooling water flow into the mold to take away heat. The water cooling efficiency is high, the control is easy, and the method is the most commonly used method for cooling the die-casting mould.
The cooling system is sometimes also referred to as a cooling duct or cooling circuit. The cooling of the shape of returning can make the distance that cooling water flows inside the mould shorter to improve cooling efficiency and energy saving, and not only this, the cooling of shape of returning makes cooling water more evenly distributed inside the mould, thereby avoids the mould temperature too high or too low, causes foundry goods defect or mould to warp, consequently the prior art can use the cooling circuit of shape of returning as the cooling duct of die casting die many times. In different seasons, the environment temperature changes, if the back-shaped cooling pipeline can completely cool when the environment temperature is lower, but when the environment temperature is higher, the temperature of cooling water also rises, and the cooling effect is lost when half of the cooling water is carried out in the back-shaped cooling pipeline, so that the cooling of the die-casting die is not facilitated; therefore, the existing requirements are not met, and a cooling device and a cooling method for the die casting die are provided.
Disclosure of Invention
The invention provides a die-casting die cooling device and a die-casting die cooling method, which have the beneficial effects that the problems that the cooling effect is completely achieved if the back-shaped cooling pipeline is low in ambient temperature, and the cooling water temperature is increased when the ambient temperature is high, so that half of the cooling water in the back-shaped cooling pipeline is possibly lost, and the cooling effect on the die-casting die is not facilitated are solved.
The invention provides the following technical scheme: the die casting mold cooling device comprises a die casting mold, wherein a water cooling tank type water chiller and a cooling water tower are arranged at the side part of the die casting mold, an input water pipe and an output water pipe of an internal cooling water channel of the die casting mold are connected with the water cooling tank type water chiller, the water cooling tank type water chiller is connected with the cooling water tower, a circular main pipe and a plurality of circular secondary pipes are arranged in the die casting mold, the circular secondary pipes are arranged at the inner side of the circular main pipe, a cooling pipeline is rotatably arranged in the die casting mold, one end of the cooling pipeline is connected with the input water pipe, the other end of the cooling pipeline penetrates through the circular main pipe and the circular secondary pipes, the output water pipe is divided into a full-waterway main pipe, a half-waterway main pipe, a full-waterway secondary pipe and a half-waterway secondary pipe, the full-waterway main pipe is communicated with the circular main pipe, and the half-waterway secondary pipe is communicated with the circular secondary pipe;
the cooling pipeline is arranged as an assembly type pipeline, and the cooling pipeline is sequentially provided with a first assembly pipe, a second assembly pipe and a third assembly pipe;
the side part of the cooling pipeline is provided with a first water outlet one-way valve, a second water outlet one-way valve, a first switching valve and a second switching valve for switching the cooling water flow modes of the main return pipe and the secondary return pipe, before the cooling pipeline rotates, the cooling water of the main return pipe and the secondary return pipe flows clockwise, and the cooling water respectively enters the output water pipe from the main full-waterway drain pipe and the secondary full-waterway drain pipe;
After the cooling pipeline rotates, the cooling water of the main pipe and the secondary pipe flows outwards, turns to upward flow, and finally enters the output water pipe from the main pipe and the secondary pipe.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: the pipe orifices of the whole waterway main pipe and the whole waterway secondary pipe are arranged on the same side of the first assembly pipe, the first water outlet one-way valve is arranged adjacent to the whole waterway main pipe, the first water outlet one-way valve is positioned in the pipeline of the rectangular main pipe, the second water outlet one-way valve is arranged adjacent to the whole waterway secondary pipe, and the second water outlet one-way valve is positioned in the pipeline of the rectangular secondary pipe;
The first water outlet one-way valve comprises a one-way valve plate which is arranged in the inverted-shape main pipe in a sliding manner, a supporting convex block and a one-way ring are arranged on the inner wall of the inverted-shape main pipe, one side of the one-way valve plate is provided with a one-way spring, the other end of the one-way spring is connected with the supporting convex block, the side wall of the one-way valve plate is attached to the one-way ring, the center of the one-way valve plate is connected with a valve rod, the other side of the one-way valve plate is connected with a water sealing plate, the water sealing plate is attached to the main pipe of the whole waterway in a sliding manner, and the one-way valve plate is in clearance fit with the inner wall of the inverted-shape main pipe;
The structure of the second water outlet one-way valve is consistent with that of the first water outlet one-way valve, a water sealing plate of the second water outlet one-way valve is in sliding fit with the whole waterway secondary calandria, and a one-way valve plate of the second water outlet one-way valve is in clearance fit with the inner wall of the return secondary pipe.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: the middle part of first dress piping is provided with first control mechanism and second control mechanism, first control mechanism with first play water check valve transmission cooperation, second control mechanism with second play water check valve transmission cooperation, first control mechanism is including setting up the inside fretwork frame of first assembly pipe, fretwork frame lateral part fixed mounting has the dead lever, the eccentric cam of installing of dead lever end, the water inlet has been seted up to the lateral part of first dress piping, first control mechanism with second control mechanism's structure is the same, first control mechanism the water inlet with return shape is responsible for the intercommunication, second control mechanism the water inlet with return shape secondary pipe intercommunication, and first play water check valve the valve rod with first control mechanism's the cam conflict, second play water check valve the valve rod end with second control mechanism's cam conflict.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: before the cooling pipeline rotates, one end with a shorter radius of the cam is abutted against the valve rod, at the moment, the first water outlet one-way valve and the second water outlet one-way valve are in a closed state, and the cooling water of the inverted main pipe and the inverted secondary pipe can only flow in the other direction and once flow through the whole pipeline, and finally flow out of the full-waterway main drain pipe and the half-waterway main drain pipe;
After the cooling pipeline rotates, one end with a longer cam radius is abutted against the valve rod, the one-way valve plate is driven by the valve rod to move outwards, the first water outlet one-way valve and the second water outlet one-way valve are opened, and at the moment, the water sealing plates of the first water outlet one-way valve and the second water outlet one-way valve respectively block the pipe orifices of the whole waterway main pipe and the whole waterway secondary pipe, and the cooling water of the return main pipe and the return secondary pipe is discharged from the half waterway main pipe and the half waterway secondary pipe.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: the middle part of second assembly pipe is installed the middle part check valve, the middle part check valve is including fixed mounting be in the support frame of second assembly pipe inner wall, support spring is installed at the support frame top, the manger plate valve plate is installed at support spring's top, the center post is installed to the bottom of manger plate valve plate, the inner wall fixed mounting of second assembly pipe has the spacing ring.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: the first switching valve is located at the intersection of the second assembling pipe and the return-shaped main pipe, the second switching valve is located at the intersection of the second assembling pipe and the return-shaped secondary pipe, the first switching valve comprises first water passing holes formed in two sides of the third assembling pipe, two arched pipelines are connected to the middle of each first water passing hole, second water passing holes are formed in two sides of each first switching valve, two second water passing holes are perpendicular to the two first water passing holes, a middle partition plate is fixedly installed at the bottom of each arched pipeline, a semi-waterway water outlet switching hole is formed in the side portion of each second assembling pipe, and the position of each semi-waterway water outlet switching hole is flush with a pipe orifice of the semi-waterway main pipe.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: before the cooling pipeline rotates, when the cooling water of the square main pipe and the square secondary pipe flows in a full waterway, a first water passing hole of the first switching valve is communicated with the square main pipe, a half waterway water outlet switching hole of the first switching valve is staggered with the half waterway main drain pipe, a first water passing hole of the second switching valve is communicated with the square secondary pipe, a half waterway water outlet switching hole of the second switching valve is staggered with the half waterway secondary drain pipe, and the cooling water flows through the first switching valve and the second switching valve in the middle;
After the cooling pipeline rotates, the second water passing hole of the first switching valve is communicated with the return-shaped main pipe, the half-waterway water outlet switching hole of the first switching valve is communicated with the half-waterway main pipe, the same half-waterway water outlet switching hole of the second switching valve is communicated with the return-shaped secondary pipe, the half-waterway water outlet switching hole of the second switching valve is communicated with the half-waterway secondary pipe, and cooling water flows into the half-waterway main pipe and the half-waterway secondary pipe from the first switching valve and the second switching valve.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: the outer side of the end part of the cooling pipeline is fixedly provided with a hand wheel, the cooling pipeline is positioned on the central axis of the circular main pipe and the circular secondary pipe, two semi-waterway main discharge pipes are arranged, two semi-waterway main discharge pipes are symmetrically arranged on two sides of the cooling pipeline, two semi-waterway secondary discharge pipes of each circular secondary pipe are symmetrically arranged on two sides of the cooling pipeline.
As an alternative of the cooling device for a die casting mold according to the present invention, wherein: the water cooling box type water chiller comprises a first water pump, a water tank type evaporator, a condenser and a compressor, wherein the compressor is connected to the side part of the water tank type evaporator, the condenser is connected to the side part of the compressor, the first water pump is connected between the water tank type evaporator and the die casting die, the cooling water tower is communicated with the condenser, and a second water pump is arranged on a connecting pipeline of the cooling water tower and the condenser.
The scheme also provides a method for the cooling device of the die casting die, which comprises the following specific steps:
a1, cooling water in the die-casting die enters a water-cooling box type water chiller through a first water pump to be cooled, and cooling water with lower temperature enters the die-casting die from an input water pipe;
A2, when the temperature difference between the ambient temperature and the cooling water is large, rotating a hand wheel, changing the cooling water in the die casting die from full waterway flow to half waterway flow, and symmetrically dividing the cooling water;
and A3, water in the water cooling tank type water chiller enters a cooling water tower through a second water pump to dissipate heat.
The invention has the following beneficial effects:
1. According to the die casting die cooling device and the die casting die cooling method, through the cooperation of a cooling pipeline and a first switching valve, a second switching valve, a first water outlet one-way valve and a second water outlet one-way valve, in the water inlet direction of cooling water, the cooling water entering the die casting die cooling device cannot flow in the direction of the first water outlet one-way valve and the second water outlet one-way valve when the first water outlet one-way valve and the second water outlet one-way valve are closed and can only flow in one direction, so that the cooling water can flow around the whole pipeline for one circle, and because the first water outlet one-way valve and the second water outlet one-way valve are closed, the pipe orifices of a full-waterway main pipe and a full-waterway secondary pipe are opened, and therefore cooling water in a circular main pipe and a circular secondary pipe finally enter the full-waterway main pipe and the full-waterway secondary pipe;
Simultaneously, the first switching valve and the second switching valve are synchronously matched with the first water outlet one-way valve and the second water outlet one-way valve, and the first switching valve and the second switching valve can switch the water outlet positions of the whole waterway and the half waterway, and before switching, the first switching valve and the second switching valve plug the half waterway main drain pipe and the half waterway secondary drain pipe so as to ensure that water flows out of the whole waterway main drain pipe and the whole waterway secondary drain pipe;
the setting of this scheme for the inside cooling water of die casting die can select to switch different rivers operation modes according to the difference in temperature of ambient temperature and cooling water, when the less cooling water of difference in temperature became invalid in advance, can discharge the cooling water at half way, save time, and the operational route is complete, returns shape and all can have the cooling water to pass through in main pipe and the shape secondary pipe that returns, does not influence the cooling effect, improves cooling efficiency.
2. According to the die casting mold cooling device and the die casting mold cooling method, the first control mechanism and the second control mechanism are arranged, when the cooling pipeline is rotated, the position of the cam, which is abutted against the valve rod, is changed, the check valve plate is automatically triggered to move, the functions of the first water outlet check valve and the second water outlet check valve are automatically changed, so that the first water outlet check valve and the second water outlet check valve are opened or closed, the cooling water is controlled to flow unidirectionally or bidirectionally towards two sides when entering the die casting mold, and the water sealing plates of the first water outlet check valve and the second water outlet check valve block the pipe orifices of the full-waterway main pipe and the full-waterway secondary pipe respectively at the moment, so that the cooling water of the rectangular main pipe and the rectangular secondary pipe is discharged from the half-waterway main pipe and the half-waterway secondary pipe, and waterway switching of the die casting mold is guaranteed during cooling, and the die casting mold is more scientific and reliable.
3. According to the die-casting die cooling device and the die-casting die cooling method, through the arrangement of the cooling water tower and the water-cooling box type water chiller, cooling water in the die-casting die is subjected to heat exchange, and the cooled cooling water subjected to heat exchange is subjected to heat dissipation for the second time, so that the heat exchange effect of the cooling water is improved, and the cooling efficiency of the die-casting die is further improved.
Drawings
FIG. 1 is a schematic diagram of a cooling system according to the present invention.
Fig. 2 is a schematic perspective view of a die casting mold according to the present invention.
Fig. 3 is a schematic cross-sectional perspective view of a cooling pipe of a die casting die of the present invention.
Fig. 4 is a schematic perspective sectional view of the input water pipe of the present invention.
FIG. 5 is a schematic diagram of a cross-sectional view of a cooling pipe according to the present invention.
FIG. 6 is a schematic diagram of a cross-sectional structure of a half water path of a cooling pipe according to the present invention.
Fig. 7 is a schematic diagram of the structure of the middle check valve of the present invention.
Fig. 8 is a schematic structural diagram of a first control mechanism according to the present invention.
Fig. 9 is a schematic diagram of the first switching valve of the present invention in the full waterway.
Fig. 10 is a schematic diagram of a half waterway structure of the first switching valve of the present invention.
Fig. 11 is a schematic structural diagram of the first water outlet check valve at the position a in the half waterway of the present invention.
Fig. 12 is a schematic structural diagram of the first outlet check valve at a in the present invention.
In the figure: 10. a die casting mold; 11. an input water pipe; 12. an output water pipe; 110. a cooling pipe; 111. a hand wheel; 112. a first control mechanism; 1121. a hollowed-out frame; 1122. a fixed rod; 1123. a cam; 1124. a water-through port; 113. a second control mechanism; 114. a middle one-way valve; 1141. a support frame; 1142. a support spring; 1143. a water blocking valve plate; 1144. a limiting ring; 1145. a center column; 115. a first switching valve; 116. a second switching valve; 117. a first water outlet one-way valve; 118. a second water outlet one-way valve; 120. a first fitting pipe; 121. a main calandria of the whole waterway; 122. a half waterway main drain pipe; 123. a full waterway secondary pipe arrangement; 124. a half waterway secondary pipe; 130. a second fitting pipe; 140. a third fitting pipe; 151. a first water passing hole; 152. an arched conduit; 153. a middle partition plate; 154. a second water passing hole; 155. a half waterway water outlet switching hole; 171. a one-way valve plate; 172. a one-way spring; 173. supporting the bump; 174. a valve stem; 175. a water sealing plate; 20. a first water pump; 210. a main pipe in a shape of a circle; 220. a secondary tube of a loop shape; 30. a water tank type evaporator; 40. a condenser; 50. a compressor; 60. a second water pump; 70. a cooling water tower; 80. a water-cooling tank type water chiller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The present embodiment aims to solve the problem that if the cooling effect of the back-shaped cooling pipeline can be completely achieved when the ambient temperature is low, but when the ambient temperature is high, the temperature of the cooling water is increased, and the cooling effect is possibly lost when the cooling water is half of the back-shaped cooling pipeline, so that the cooling of the die-casting mold is not facilitated, please refer to fig. 1-12, a die-casting mold cooling device and a method thereof, the die-casting mold cooling device comprises a die-casting mold 10, a water cooling tank type water chiller 80 and a cooling water tower 70 are arranged on the side part of the die-casting mold 10, an input water pipe 11 and an output water pipe 12 of an internal cooling water path of the die-casting mold 10 are connected with the water cooling tank type water chiller 80, and the water cooling tank type water chiller 80 is connected with the cooling water tower 70. When specifically setting, see fig. 1, the water-cooled tank-type water chiller 80 includes a first water pump 20, a water tank-type evaporator 30, a condenser 40 and a compressor 50, the compressor 50 is connected to the side of the water tank-type evaporator 30, the condenser 40 is connected to the side of the compressor 50, the first water pump 20 is connected between the water tank-type evaporator 30 and the die casting die 10, a cooling water tower 70 is communicated with the condenser 40, and a second water pump 60 is installed on a connecting pipeline between the cooling water tower 70 and the condenser 40.
Through the setting of cooling tower 70 and water-cooling box cold water machine, not only heat transfer is carried out to the cooling water in the die casting die 10, but also the cooling water after the heat transfer carries out the heat dissipation for the second time to improve the heat transfer effect of cooling water, further improved the cooling efficiency of die casting die 10.
The die casting die 10 is internally provided with a circular main pipe 210 and a plurality of circular secondary pipes 220, the plurality of circular secondary pipes 220 are arranged on the inner side of the circular main pipe 210, a cooling pipeline 110 is rotatably arranged in the die casting die 10, one end of the cooling pipeline 110 is connected with an input water pipe 11, the other end of the cooling pipeline 110 penetrates through the circular main pipe 210 and the plurality of circular secondary pipes 220, the output water pipe 12 is divided into a full-waterway main drain pipe 121, a half-waterway main drain pipe 122, a full-waterway secondary drain pipe 123 and a half-waterway secondary drain pipe 124, the full-waterway main drain pipe 121, the half-waterway main drain pipe 122 are communicated with the circular main pipe 210, and the full-waterway secondary drain pipe 123, the half-waterway secondary drain pipe 124 are communicated with the circular secondary pipes 220;
Referring to fig. 4, the cooling pipe 110 is provided as a fitting type pipe, and the cooling pipe 110 is provided with a first fitting pipe 120, a second fitting pipe 130, and a third fitting pipe 140 in this order by flanges.
Referring to fig. 3, 5 and 6, the side of the cooling pipe 110 is provided with a first water outlet check valve 117, a second water outlet check valve 118, a first switching valve 115 and a second switching valve 116 for switching the cooling water flow modes of the main pipe 210 and the secondary pipe 220, and before the cooling pipe 110 rotates, the cooling water of the main pipe 210 and the secondary pipe 220 flows clockwise, and the cooling water enters the output water pipe 12 from the main pipe 121 and the secondary pipe 123; after the cooling pipe 110 rotates, the cooling water in the main pipe 210 and the secondary pipe 220 flows outward, turns upward, and finally enters the water outlet pipe 12 from the main pipe 122 and the secondary pipe 124.
The orifices of the main full-waterway gauntlet 121 and the secondary full-waterway gauntlet 123 are arranged on the same side of the first assembling pipe 120, the first water outlet check valve 117 is arranged adjacent to the main full-waterway gauntlet 121, the first water outlet check valve 117 is positioned in the pipeline of the return-shaped main pipe 210, the second water outlet check valve 118 is arranged adjacent to the secondary full-waterway gauntlet 123, and the second water outlet check valve 118 is positioned in the pipeline of the return-shaped secondary pipe 220;
Referring to fig. 11 and 12, the first water outlet check valve 117 includes a check valve plate 171 slidably disposed in the main pipe 210, a supporting protrusion 173 and a check ring 176 are disposed on an inner wall of the main pipe 210, a check spring 172 is mounted on one side of the check valve plate 171, the other end of the check spring 172 is connected with the supporting protrusion 173, a side wall of the check valve plate 171 is attached to the check ring 176, a valve rod 174 is connected to a center of the check valve plate 171, a water sealing plate 175 is connected to the other side of the check valve plate 171, the water sealing plate 175 is slidably attached to the main pipe 121 of the whole waterway, and the check valve plate 171 is in clearance fit with an inner wall of the main pipe 210 of the whole waterway; the structure of the second water outlet check valve 118 is consistent with that of the first water outlet check valve 117, the water sealing plate 175 of the second water outlet check valve 118 is in sliding fit with the all-waterway secondary drain pipe 123, and the check valve plate 171 of the second water outlet check valve 118 is in clearance fit with the inner wall of the return secondary pipe 220. The first switching valve 115 and the second switching valve 116 are synchronously matched with the first water outlet check valve 117 and the second water outlet check valve 118, because the first switching valve 115 and the second switching valve 116 can switch the water outlet positions of the whole water channel and the half water channel, before switching, the first switching valve 115 and the second switching valve 116 plug the half water channel main drain pipe 122 and the half water channel secondary drain pipe 124, and then water flows out of the whole water channel main drain pipe 121 and the whole water channel secondary drain pipe 123.
In this embodiment, all the pipe connection ports are provided with rubber sealing rings for preventing water leakage.
In this embodiment: by the cooperation of the cooling pipe 110 with the first switching valve 115, the second switching valve 116, the first water outlet check valve 117 and the second water outlet check valve 118, in the water inlet direction of the cooling water, when the first water outlet check valve 117 and the second water outlet check valve 118 are closed, the cooling water of the inlet water cannot flow in the direction of the first water outlet check valve 117 and the second water outlet check valve 118, so that the cooling water can only flow unidirectionally, and thus the cooling water flows around the whole pipe once, and as the first water outlet check valve 117 and the second water outlet check valve 118 are closed, the orifices of the whole water main drain pipe 121 and the whole water sub drain pipe 123 are opened, so that the cooling water in the return main pipe 210 and the return sub pipe 220 finally enters the whole water main drain pipe 121 and the whole water sub drain pipe 123. The setting of this scheme for the inside cooling water of die casting die 10 can select to switch different rivers operation modes according to the difference in temperature of ambient temperature and cooling water, when the less cooling water of difference in temperature became invalid in advance, can discharge the cooling water at half way, save time, and the operational route is complete, all can have the cooling water to pass through in return shape main pipe 210 and the return shape secondary pipe 220, does not influence the cooling effect, improves cooling efficiency.
Example 2
The present embodiment is intended to facilitate the improvement of automatically changing the functions of the first water outlet check valve 117 and the second water outlet check valve 118, and is based on embodiment 1, specifically, please refer to fig. 1-, the middle part of the first mounting pipe 120 is provided with a first control mechanism 112 and a second control mechanism 113, the first control mechanism 112 is in transmission fit with the first water outlet check valve 117, the second control mechanism 113 is in transmission fit with the second water outlet check valve 118, the first control mechanism 112 comprises a hollow frame 1121 disposed inside the first mounting pipe 120, a fixed rod 1122 is fixedly mounted on the side of the hollow frame 1121, a cam 1123 is eccentrically mounted on the end of the fixed rod 1122, a water through hole 1124 is provided on the side of the first mounting pipe 120, the structures of the first control mechanism 112 and the second control mechanism 113 are the same, the water through hole 1124 of the first control mechanism 112 is communicated with the circular main pipe 210, the water through hole 1124 of the second control mechanism 113 is communicated with the circular sub-pipe 220, the valve stem 174 of the first water outlet check valve 117 is in interference with the cam 1123 of the first control mechanism 112, and the valve stem 174 of the second water outlet check valve 118 is in interference with the cam 1123 of the second control mechanism 112.
Before the cooling pipeline 110 rotates, one end of the cam 1123 with a shorter radius is abutted against the valve rod 174, at this time, the first water outlet check valve 117 and the second water outlet check valve 118 are in a closed state, and the cooling water of the main return pipe 210 and the secondary return pipe 220 can only flow in the other direction and flow through the whole pipeline once, and finally flow out from the main full-waterway pipe 121 and the main half-waterway pipe 122;
After the cooling pipe 110 rotates, one end of the cam 1123 with a longer radius is abutted against the valve rod 174, the check valve plate 171 is driven by the valve rod 174 to move outwards, the first water outlet check valve 117 and the second water outlet check valve 118 are opened, and at this time, the water sealing plates 175 of the first water outlet check valve 117 and the second water outlet check valve 118 respectively plug the pipe orifices of the main full-waterway pipe 121 and the secondary full-waterway pipe 123, and the cooling water of the main return pipe 210 and the secondary return pipe 220 is discharged from the main half-waterway pipe 122 and the secondary half-waterway pipe 124.
The middle part of second dress piping 130 installs middle part check valve 114, and middle part check valve 114 includes the support frame 1141 of fixed mounting at second dress piping 130 inner wall, and support spring 1142 is installed at support frame 1141 top, and water retaining valve plate 1143 is installed at support spring 1142's top, and center post 1145 is installed to water retaining valve plate 1143's bottom, and the inner wall fixed mounting of second dress piping 130 has spacing ring 1144.
The middle part of the third assembly pipe 140 is provided with a first switching valve 115 and a second switching valve 116, the first switching valve 115 is positioned at the intersection of the second assembly pipe 130 and the return-shaped main pipe 210, the second switching valve 116 is positioned at the intersection of the second assembly pipe 130 and the return-shaped secondary pipe 220, the first switching valve 115 comprises first water passing holes 151 formed in two sides of the third assembly pipe 140, the middle parts of the two first water passing holes 151 are connected with arched pipelines 152, two sides of the first switching valve 115 are also provided with second water passing holes 154, the two second water passing holes 154 are perpendicular to the two first water passing holes 151, a middle partition 153 is fixedly arranged at the bottom of the arched pipeline 152, a half-waterway water outlet switching hole 155 is formed in the side part of the second assembly pipe 130, and the half-waterway water outlet switching hole 155 is formed in a position flush with the pipe orifice of the half-waterway main pipe 122.
Before the cooling pipeline 110 rotates, when the cooling water of the circular main pipe 210 and the circular secondary pipe 220 flows in a full waterway, the first water passing hole 151 of the first switching valve 115 is communicated with the circular main pipe 210, the half waterway water outlet switching hole 155 of the first switching valve 115 is staggered with the half waterway main drain pipe 122, the first water passing hole 151 of the same second switching valve 116 is communicated with the circular secondary pipe 220, the half waterway water outlet switching hole 155 of the second switching valve 116 is staggered with the half waterway secondary drain pipe 124, and the cooling water flows through the first switching valve 115 and the second switching valve 116 halfway.
After the cooling pipe 110 rotates, the second water passing hole 154 of the first switching valve 115 is communicated with the return main pipe 210, the half water way water outlet switching hole 155 of the first switching valve 115 is communicated with the half water way main pipe 122, the half water way water outlet switching hole 155 of the same second switching valve 116 is communicated with the return secondary pipe 220, the half water way water outlet switching hole 155 of the second switching valve 116 is communicated with the half water way secondary pipe 124, and cooling water flows into the half water way main pipe 122 and the half water way secondary pipe 124 from the first switching valve 115 and the second switching valve 116.
The outer side of the end part of the cooling pipe 110 is fixedly provided with a hand wheel 111, the cooling pipe 110 is positioned on the central axis of the circular main pipe 210 and the circular secondary pipe 220, two half waterway main drain pipes 122 are arranged, two half waterway main drain pipes 122 are symmetrically arranged on two sides of the cooling pipe 110, two half waterway secondary drain pipes 124 of each circular secondary pipe 220 are arranged, and two half waterway secondary drain pipes 124 are symmetrically arranged on two sides of the cooling pipe 110.
The number of the secondary pipes 220 can be set according to practical situations, the corresponding second water outlet check valve 118, second switching valve 116 and second control mechanism 113 are all set to be the same, and all the secondary pipes 122 and 124 are correspondingly set to be a plurality of and connected with the water outlet pipe 12.
In this embodiment: by arranging the first control mechanism 112 and the second control mechanism 113, when the cooling pipeline 110 is rotated, the position of the cam 1123 abutting against the valve rod 174 is changed, the check valve plate 171 is automatically triggered to move, so that the first water outlet check valve 117 and the second water outlet check valve 118 are opened or closed, and accordingly, whether the cooling water flows unidirectionally or bidirectionally towards two sides when entering the die casting die 10 is controlled, and the water sealing plates 175 of the first water outlet check valve 117 and the second water outlet check valve 118 block the pipe orifices of the all-waterway main pipe 121 and the all-waterway secondary pipe 123 respectively at this time, so that the cooling water of the return main pipe 210 and the return secondary pipe 220 is ensured to be discharged from the half-waterway main pipe 122 and the half-waterway secondary pipe 122, and the waterway switching of the die casting die 10 is ensured during cooling, and the cooling is more scientific and reliable.
Example 3
A method of a cooling device for a die casting mold, comprising the steps of:
A1, cooling water in the die-casting die 10 enters a water cooling box type water chiller 80 through a first water pump 20 to be cooled, and cooling water with lower temperature enters the die-casting die 10 from an input water pipe 11;
A2, when the temperature difference between the ambient temperature and the cooling water is large, rotating the hand wheel 111 to change the cooling water in the die casting die 10 from full waterway flow to half waterway flow, and symmetrically dividing the cooling water;
and A3, water in the water cooling tank type water chiller 80 enters the cooling water tower 70 through the second water pump 60 to dissipate heat.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (7)
1. The utility model provides a die casting die cooling device, includes die casting die (10), die casting die (10) lateral part is provided with water-cooled tank type cooling water machine (80) and cooling tower (70), input water pipe (11) and output water pipe (12) of the inside cooling water route of die casting die (10) all with water-cooled tank type cooling water machine (80) are connected, water-cooled tank type cooling water machine (80) with cooling tower (70) are connected, its characterized in that: the die casting die (10) is internally provided with a return-shaped main pipe (210) and a plurality of return-shaped secondary pipes (220), the return-shaped secondary pipes (220) are arranged on the inner side of the return-shaped main pipe (210), a cooling pipeline (110) is rotatably arranged in the die casting die (10), one end of the cooling pipeline (110) is connected with an input water pipe (11), the other end of the cooling pipeline (110) penetrates through the return-shaped main pipe (210) and the return-shaped secondary pipes (220), the output water pipe (12) is divided into a full-waterway main pipe (121), a half-waterway main pipe (122), a full-waterway secondary pipe (123) and a half-waterway secondary pipe (124), the full-waterway main pipe (121) is communicated with the return-shaped main pipe (210), and the full-waterway secondary pipe (123) and the half-waterway secondary pipe (124) are communicated with the return-shaped secondary pipe (220).
The cooling pipeline (110) is arranged as a fabricated pipeline, and the cooling pipeline (110) is sequentially provided with a first assembling pipe (120), a second assembling pipe (130) and a third assembling pipe (140);
The side part of the cooling pipeline (110) is provided with a first water outlet one-way valve (117), a second water outlet one-way valve (118), a first switching valve (115) and a second switching valve (116) for switching the cooling water flow modes of the main return pipe (210) and the secondary return pipe (220), before the cooling pipeline (110) rotates, the cooling water of the main return pipe (210) and the secondary return pipe (220) flows clockwise, and the cooling water respectively enters the output water pipe (12) from the main full-waterway drain pipe (121) and the secondary full-waterway drain pipe (123);
After the cooling pipeline (110) rotates, cooling water of the main return pipe (210) and the secondary return pipe (220) flow outwards, turn to upwards, and finally enter the output water pipe (12) from the main semi-waterway pipe (122) and the secondary semi-waterway pipe (124);
The pipe orifices of the all-waterway main pipe (121) and the all-waterway secondary pipe (123) are arranged on the same side of the first assembly pipe (120), the first water outlet one-way valve (117) is arranged adjacent to the all-waterway main pipe (121), the first water outlet one-way valve (117) is positioned in a pipeline of the inverted-U-shaped main pipe (210), the second water outlet one-way valve (118) is arranged adjacent to the all-waterway secondary pipe (123), and the second water outlet one-way valve (118) is positioned in a pipeline of the inverted-U-shaped secondary pipe (220);
The first water outlet one-way valve (117) comprises a one-way valve plate (171) which is slidably arranged in the inverted-shape main pipe (210), a supporting lug (173) and a one-way ring (176) are arranged on the inner wall of the inverted-shape main pipe (210), one side of the one-way valve plate (171) is provided with a one-way spring (172), the other end of the one-way spring (172) is connected with the supporting lug (173), the side wall of the one-way valve plate (171) is attached to the one-way ring (176), the center of the one-way valve plate (171) is connected with a valve rod (174), the other side of the one-way valve plate (171) is connected with a water sealing plate (175), the water sealing plate (175) is slidably attached to the inner wall of the inverted-shape main pipe (210);
The structure of the second water outlet one-way valve (118) is consistent with that of the first water outlet one-way valve (117), a water sealing plate (175) of the second water outlet one-way valve (118) is in sliding fit with the all-waterway secondary drain pipe (123), and a one-way valve plate (171) of the second water outlet one-way valve (118) is in clearance fit with the inner wall of the return secondary pipe (220);
A first control mechanism (112) and a second control mechanism (113) are arranged in the middle of the first assembly pipe (120), the first control mechanism (112) is in transmission fit with the first water outlet one-way valve (117), the second control mechanism (113) is in transmission fit with the second water outlet one-way valve (118), the first control mechanism (112) comprises a hollowed-out frame (1121) arranged in the first assembly pipe (120), a fixed rod (1122) is fixedly arranged at the side part of the hollowed-out frame (1121), a cam (1123) is eccentrically arranged at the end part of the fixed rod (1122), a water inlet (1124) is formed in the side part of the first assembly pipe (120), the structures of the first control mechanism (112) and the second control mechanism (113) are the same, the water inlet (1124) of the first control mechanism (112) is communicated with the return pipe (210), the water inlet (1124) of the second control mechanism (113) is communicated with the return pipe (220), and the water inlet (1124) of the first control mechanism (112) is in collision with the water outlet one-way valve (117) of the second valve (174);
Before the cooling pipeline (110) rotates, one end of the cam (1123) with a shorter radius is abutted against the valve rod (174), at the moment, the first water outlet one-way valve (117) and the second water outlet one-way valve (118) are in a closed state, and the cooling water of the circular main pipe (210) and the circular secondary pipe (220) can only flow in the other direction and flow through the whole pipeline once, and finally flow out from the full-waterway main drain pipe (121) and the half-waterway main drain pipe (122);
After the cooling pipeline (110) rotates, one end with a longer radius of the cam (1123) is abutted against the valve rod (174), the one-way valve plate (171) is driven by the valve rod (174) to move outwards, the first water outlet one-way valve (117) and the second water outlet one-way valve (118) are opened, and at the moment, the water sealing plates (175) of the first water outlet one-way valve (117) and the second water outlet one-way valve (118) respectively plug the pipe orifices of the whole waterway main pipe (121) and the whole waterway secondary pipe (123), and cooling water of the return main pipe (210) and the return secondary pipe (220) is discharged from the half waterway main pipe (122) and the half waterway secondary pipe (124).
2. A die casting mold cooling apparatus according to claim 1, wherein: the middle part of second dress piping (130) is installed middle part check valve (114), middle part check valve (114) are in including fixed mounting support frame (1141) of second dress piping (130) inner wall, support spring (1142) are installed at support frame (1141) top, manger plate valve plate (1143) are installed at the top of support spring (1142), center post (1145) are installed to the bottom of manger plate valve plate (1143), the inner wall fixed mounting of second dress piping (130) has spacing ring (1144).
3. A die casting mold cooling apparatus according to claim 1, wherein: the utility model provides a water way, including first water hole (151) of third dress piping (140) both sides are offered in first dress piping (140) mid-mounting, first switch valve (115) are located second dress piping (130) with the intersection of returning shape main pipe (210), second switch valve (116) are located second dress piping (130) with the intersection of returning shape secondary pipe (220), first switch valve (115) are including seting up first water hole (151) of third dress piping (140) both sides, two the middle part of first water hole (151) is connected with arch pipeline (152), second water hole (154) have still been seted up to the both sides of first switch valve (115), two second water hole (154) set up perpendicularly with two first water hole (151), middle baffle (153) are installed to the bottom fixed mounting of arch pipeline (152), half water hole (155) have been seted up to the lateral part of second dress piping (130), half water hole (155) are leveled with water way (122) are seted up to the water way of water hole (155).
4. A die casting mold cooling apparatus according to claim 3, wherein: before the cooling pipeline (110) rotates, when the cooling water of the back-shaped main pipe (210) and the back-shaped secondary pipe (220) flows in a full waterway, a first water passing hole (151) of the first switching valve (115) is communicated with the back-shaped main pipe (210), a half waterway water outlet switching hole (155) of the first switching valve (115) is staggered with the half waterway main drain pipe (122), a first water passing hole (151) of the same second switching valve (116) is communicated with the back-shaped secondary pipe (220), a half waterway water outlet switching hole (155) of the second switching valve (116) is staggered with the half waterway secondary drain pipe (124), and the cooling water flows through the first switching valve (115) and the second switching valve (116) halfway;
After the cooling pipeline (110) rotates, the second water passing hole (154) of the first switching valve (115) is communicated with the return-shaped main pipe (210), the half-waterway water outlet switching hole (155) of the first switching valve (115) is communicated with the half-waterway main drain pipe (122), the same half-waterway water outlet switching hole (155) of the second switching valve (116) is communicated with the return-shaped secondary pipe (220), the half-waterway water outlet switching hole (155) of the second switching valve (116) is communicated with the half-waterway secondary drain pipe (124), and cooling water flows into the half-waterway main drain pipe (122) and the half-waterway secondary drain pipe (124) from the first switching valve (115) and the second switching valve (116).
5. A die casting mold cooling apparatus according to claim 1, wherein: the outside fixed mounting of the tip of cooling tube (110) has hand wheel (111), cooling tube (110) are located return shape is responsible for (210) with return shape is epaxial in secondary pipe (220), half water route owner calandria (122) are provided with two, and two half water route owner calandria (122) symmetry sets up cooling tube (110)'s both sides, every return shape secondary pipe (220) half water route secondary calandria (124) are provided with two, two half water route secondary calandria (124) symmetry sets up cooling tube (110) both sides.
6. A die casting mold cooling apparatus according to claim 1, wherein: the water cooling box type water chiller (80) comprises a first water pump (20), a water tank type evaporator (30), a condenser (40) and a compressor (50), wherein the compressor (50) is connected to the side part of the water tank type evaporator (30), the condenser (40) is connected to the side part of the compressor (50), the first water pump (20) is connected between the water tank type evaporator (30) and the die casting die (10), the cooling water tower (70) is communicated with the condenser (40), and a second water pump (60) is installed on a connecting pipeline of the cooling water tower (70) and the condenser (40).
7. A method of a cooling device for a die casting mold according to claim 1, comprising the specific steps of:
A1, cooling water in the die-casting die (10) enters a water-cooled box-type water chiller (80) through a first water pump (20) to be cooled, and cooling water with lower temperature enters the die-casting die (10) from an input water pipe (11);
A2, when the temperature difference between the ambient temperature and the cooling water is large, rotating a hand wheel (111), changing the cooling water in the die casting die (10) from full waterway flow to half waterway flow, and symmetrically dividing the cooling water;
and A3, water in the water-cooling box-type water chiller (80) enters the cooling water tower (70) through the second water pump (60) to dissipate heat.
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