CN112453346A

CN112453346A - Die casting die with automatic cooling and lubricating mechanism

Info

Publication number: CN112453346A
Application number: CN202011381272.2A
Authority: CN
Inventors: 肖莉
Original assignee: Fuyang Shike Intelligent Equipment Co Ltd
Current assignee: Fuyang Shike Intelligent Equipment Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-03-09

Abstract

The invention relates to the technical field of die casting dies, and discloses a die casting die with an automatic cooling and lubricating mechanism, which comprises a cooling layer, wherein a first cooling device is arranged in the cooling layer, a slide rail is movably arranged at the bottom end of the cooling layer, a nail bin is fixedly arranged at the other end of the slide rail, a controller is fixedly arranged on the top surface of the nail bin, a die layer is arranged on one side, close to the nail bin, of the cooling layer, a second cooling device is arranged in the die layer, a partition plate is arranged on the surface, close to the cooling layer, of one side of the die layer, a die cavity is formed by the partition plate and the edge of the die layer, an ejector plate is arranged on one side, far away from the cooling layer, of the die layer, an ejector plate is arranged in the middle of one side, close to the cooling layer, of the, the die-casting device improves the working efficiency of die-casting operation and reduces the damage of the pulling force generated in the demoulding process to the surface of the die-casting die.

Description

Die casting die with automatic cooling and lubricating mechanism

Technical Field

The invention relates to the technical field of die-casting dies, in particular to a die-casting die with an automatic cooling and lubricating mechanism.

Background

Die casting is a metal casting process and is characterized in that high pressure is applied to molten metal by utilizing an inner cavity of a die. The mold is typically machined from a stronger alloy, a process somewhat similar to injection molding. Most die cast parts are iron-free, such as zinc, copper, aluminum, magnesium, lead, tin, and lead-tin alloys and their alloys. Depending on the type of die casting, either a cold chamber die casting machine or a hot chamber die casting machine may be used.

In order to ensure the efficiency of the die casting operation, the conventional die casting machine usually injects liquid metal into the cavity of the die while the cooling device is continuously cooled, but this tends to cause the liquid metal to solidify under the influence of the low temperature, without forming, which can affect subsequent liquid metal entering and filling the mould cavity, causing die casting failure, and the heating device for melting metal dissipates unnecessary heat and wastes energy, and the step of adding lubricant is not needed in the demoulding process, so that the die casting is easy to be demoulded, the die cast itself is damaged due to the pulling force of the die cast and the bottom surface of the cavity of the mold, and in addition, in order to ensure the die-casting efficiency, the demoulding of most die-casting parts is one-time demoulding, in order to ensure the success of one-time demoulding, a large demolding force is required, and the surface of the die casting is easily pulled, so that the die cavity and the surface of the die casting are damaged.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a die-casting die with an automatic cooling and lubricating mechanism, which has the advantages of automatic cooling, lubrication, tertiary demolding and the like, and solves the problems of surface damage of die-casting parts caused by heat loss and demolding tension.

(II) technical scheme

In order to solve the technical problems of heat loss and die casting surface damage caused by demoulding tension, the invention provides the following technical scheme:

a die casting die with an automatic cooling and lubricating mechanism comprises a cooling layer, wherein a first cooling device is arranged in the cooling layer, a sliding rail is movably arranged at the bottom end of the cooling layer, a nail bin is fixedly arranged at the other end of the sliding rail, a controller is fixedly arranged on the top surface of the nail bin, a die layer is arranged on one side, close to the nail bin, of the cooling layer, a second cooling device is arranged in the die layer, a partition plate is arranged on the surface, close to the cooling layer, of one side of the die layer, the partition plate and the edge of the die layer form a die cavity, an ejector pin plate is arranged on one side, far away from the cooling layer, of the die layer, eight first ejector pins are arranged in the middle of one side, close to the cooling layer, of the ejector pin plate, eight third ejector pins are arranged on two sides of one side, close to the cooling, the fixed first slide rail that is provided with of the other end of support column, the fixed servo electric jar that is provided with of the other end of first slide rail, be provided with first slider in the slide rail, the fixed second slider that is provided with of top surface of first slider, the top surface and the bottom surface both ends of second slider are all fixed and are provided with two second thimbles, the fixed pressure sensor that is provided with of one end of second slider, it is provided with the chain to run through in the second slider, keep away from in the chain the one end meshing on mould layer is provided with drive gear, the chain is close to the one end meshing on mould layer is provided with two driven gear, the breach has been seted up on the top of second slider, the second slide rail has been seted up to the bottom plate of second slider, it is provided with the third.

Preferably, the first cooling device comprises a plate heat exchanger, a water inlet and a cooling outlet are respectively arranged on two sides of the bottom end of the plate heat exchanger, a water outlet and a cooling inlet are respectively arranged on two sides of the top end of the plate heat exchanger, a cooling pipe is fixedly arranged between the water inlet and the water outlet, and the cooling pipe alternately penetrates through the whole cooling layer in a bow shape.

Preferably, the first cooling device and the second cooling device are identical in structure, the first cooling device and the second cooling device are positioned perpendicular to each other, and one end of the servo electric cylinder, which is far away from the first sliding rail, is fixed with one surface of the nail bin, which is far away from the mold layer.

Preferably, the fixed first spring that is provided with of one end of thimble shell, the thimble shell is kept away from the fixed fixture block that is provided with of one end of first spring, the thimble shell is close to the one end of fixture block and has seted up the emollient export, thimble shell endotheca is equipped with rubber container, the material seam has been seted up on rubber container's cylinder surface, rubber container is close to the one end of first spring is provided with the clamp plate, the clamp plate is close to the fixed second spring that is provided with of one end of first spring.

Preferably, the first thimble and the third thimble have the same structure, and the difference is that the length of the thimble shell in the first thimble is greater than the length of the thimble shell in the third thimble.

Preferably, the eight second thimbles are fixed with the upper surface, the lower surface of second slider respectively through the welding, the third slider with through welded fastening between the chain, drive gear and two driven gear strut the chain into an equilateral triangle, the hollow part of second slider is passed through to the chain.

Preferably, the fixed rotation motor that is provided with of drive gear top surface, the fixed motor fixed bolster that is provided with in top surface of rotating the motor, the motor fixed bolster with first slide rail is close to the one end of servo electric cylinder is fixed through the welding.

Preferably, the centre of thimble board is the circular slab, the circle of circular slab is provided with four rectangular plates all around, first thimble is located four one side that the rectangular plate is close to the circular slab, the third thimble is located four one side that the circular slab was kept away from to the rectangular plate.

Preferably, the nail bin comprises a nail bin cover and a nail bin chamber, and the nail bin cover and one end of the nail bin chamber far away from the cooling layer are connected through a hinge.

(III) advantageous effects

Compared with the prior art, the invention provides a die-casting die with an automatic cooling and lubricating mechanism, which has the following beneficial effects:

1. this die casting die with automatically cooling lubricating mechanism, through opening of controller control solenoid valve, thereby control time and the dose that gets into the coolant from the cooling entry, thereby control refrigerant enters into plate heat exchanger from the cooling entry, and then can cool down the cooling to the water inlet and the delivery port of cooling tube, and then can cool down cooling layer and mould layer, and through closing of controller control solenoid valve, can stop the refrigeration when liquid metal enters into the mould layer, avoid liquid metal not just solidify under microthermal influence yet, keep cooling when avoiding liquid metal to enter into the mould cavity, the heat is lost has been avoided, and energy is saved.

2. This die casting die with automatically, cool off lubricated mechanism, when extruding thimble shell through first spring, under the effect of thimble board, the second spring also can extrude the clamp plate, thereby promote the clamp plate and extrude rubber container, and then make ejection of compact seam warp, thereby make emollient come out from rubber container, then emollient enters into between mould layer and the fashioned die casting through the emollient export, drip into from the four corners of die casting, thereby play the effect of lubricated protection, reduce the pulling force that the drawing of patterns in-process produced to the damage on die casting die surface as far as possible, reduce the incomplete number of die casting.

3. The die casting die with the automatic cooling and lubricating mechanism ensures that the stretching degree of a first spring in a first thimble is smaller than that of a first spring in a third thimble by the fact that the length of the thimble shell in the first thimble is larger than that of the thimble shell in the third thimble, so that when a servo electric cylinder stretches, the first spring in the first thimble restores the length firstly and enters a compression state along with the stretching of the servo electric cylinder, and then force towards the direction of a cooling layer is applied to the first thimble, so that the top end of the first thimble is pushed into a die layer firstly, and then one side of a formed die casting close to the middle of the die layer is subjected to die stripping, namely one-time die stripping, under the continuous stretching and propelling action of the servo electric cylinder, the first spring in the third thimble starts to restore the length and enters the compression state, and then the top end of the third thimble is pushed into the die layer, so that one side of the formed die casting close to the edge of the die layer is subjected to die stripping, the second demoulding is carried out, the chain, the two driven gears and the driving gear form an equilateral triangle, so that after the third slide block touches the pressure sensor, the third slide block moves along the other two sides of the equilateral triangle along with the chain, at the same time, the second slide block is driven to move in the direction far away from the mould layer in the direction of the first slide rail, so as to drive the second slide block to move in the direction far away from the mould layer in the direction of the first slide rail through the first slide block, further drive the second thimble on the surface of the second slide block to move in the direction far away from the mould layer, when the third slide block is positioned below the driving gear, the second slide block is positioned at the position far away from the mould layer, at the same time, the motor fixing support passes through the gap in the middle of the second slide block, the movement of the second slide block cannot be blocked, at the moment, the fourth corner of the formed die-casting piece is already pushed out by, the controller controls the servo electric cylinder to stop extending and keep still, the first thimble and the third thimble are stationary relative to the die layer, the driving gear continues to rotate to drive the chain to move, so as to drive the third slide block to continue moving in the second slide rail, and drive the second slide block to move in the direction close to the die layer in the direction of the first slide rail, when the third slide block comes to the driven gear far away from one end of the pressure sensor, the first slide block, the second slide block and the third slide block all return to the initial positions, at the moment, due to the extension of the servo electric cylinder, the second thimble is changed from the original state of being flush with the surface of the die layer to the protruding state, so as to be pushed into the die layer, and further to demould the middle position of the formed die casting, in this way, the die casting can be guaranteed to be completely separated from the die layer by demoulding the four corners and the center of the die casting for three times, and the die casting is prevented from being protected to a certain extent under the action of the lubricant, the die casting is prevented from being damaged by pulling, the quality of the die casting is ensured, and the die casting is prevented from falling off from the die cavity due to the special shape of the die cavity when the die casting is subjected to primary demolding.

4. This die casting die with automatic cooling lubrication mechanism, through the fixture block on thimble shell top and the recess in mould layer surface mutually supported's effect, when first spring is in tensile state, the top surface of thimble shell and the surface on mould layer remain throughout to guarantee that liquid metal can not cause the deformation because of the partly disappearance on mould layer that leaves that first thimble, second thimble and third thimble cause at refrigerated in-process.

5. According to the die-casting die with the automatic cooling and lubricating mechanism, the top ends of the first ejector pin, the second ejector pin and the third ejector pin are flush with one surface, close to the cooling layer, of the die layer, so that the liquid metal is prevented from deforming due to partial loss of the die layer caused by separation of the first ejector pin, the second ejector pin and the third ejector pin in the cooling process.

6. This die casting die with self-cooling lubricating mechanism, the one end of keeping away from the cooling layer through nail storehouse lid and nail storehouse room carries out the hub connection through the hinge to the accessible is opened nail storehouse lid and is carried out periodic maintenance and maintenance to inside mechanical parts, and can in time open and inspect the fault point when breaking down, and then can save the time of dismantling the maintenance, can further raise the efficiency save time, thereby improve work efficiency.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a perspective view of the internal structure of the present invention;

FIG. 3 is a second schematic perspective view of the present invention;

FIG. 4 is a third schematic view of the three-dimensional structure of the internal structure of the present invention;

FIG. 5 is a schematic perspective view of a plate heat exchanger according to the present invention;

FIG. 6 is a schematic perspective view of a first thimble and a second thimble according to the present invention;

FIG. 7 is an exploded view of the first and second needles according to the present invention.

In the figure: 1. a cooling layer; 2. a first cooling device; 201. a plate heat exchanger; 202. a water inlet; 203. a cooling outlet; 204. a water outlet; 205. a cooling inlet; 206. a cooling tube; 3. a slide rail; 4. a staple cartridge; 401. a nail bin cover; 402. a nail chamber; 5. a mold layer; 6. a second cooling device; 7. a partition plate; 8. an ejector plate; 801. a circular plate; 802. a rectangular plate; 9. a first thimble; 901. a thimble housing; 902. a first spring; 903. a clamping block; 904. a lubricant outlet; 905. a rubber container; 906. discharging the material seam; 907. pressing a plate; 908. a second spring; 10. a support pillar; 11. a first slide rail; 12. a servo electric cylinder; 13. a first slider; 14. a second slider; 15. a second thimble; 16. a pressure sensor; 17. a chain; 18. a drive gear; 19. a driven gear; 20. a notch; 21. a second slide rail; 22. a third slider; 23. a third thimble; 24. rotating the motor; 25. a motor fixing bracket; 26. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a die casting mold with an automatic cooling and lubricating mechanism comprises a cooling layer 1, a first cooling device 2 is arranged in the cooling layer 1, a slide rail 3 is movably arranged at the bottom end of the cooling layer 1, a nail bin 4 is fixedly arranged at the other end of the slide rail 3, a controller 26 is fixedly arranged on the top surface of the nail bin 4, a mold layer 5 is arranged on one side of the cooling layer 1 close to the nail bin 4, a second cooling device 6 is arranged in the mold layer, a partition plate 7 is arranged on the surface of one side of the mold layer 5 close to the cooling layer 1, a mold cavity is formed by the partition plate 7 and the edge of the mold layer 5, an ejector pin plate 8 is arranged on one side of the mold layer 5 away from the cooling layer 1, eight first ejector pins 9 are arranged in the middle of one side of the ejector pin plate 8 close to the cooling layer 1, eight third ejector pins 23 are arranged on two sides of, a first slide rail 11 is fixedly arranged at the other end of the support column 10, a servo electric cylinder 12 is fixedly arranged at the other end of the first slide rail 11, the servo electric cylinder 12 can drive the first slide rail 11 to move, so that when the nail bin 4 and the mold layer 5 synchronously move, the first slide rail 11 and the mold layer 5 can relatively move, a first slide block 13 is arranged in the slide rail 11, a second slide block 14 is fixedly arranged on the top surface of the first slide block 13, two second ejector pins 15 are fixedly arranged at both the top surface and the bottom surface of the second slide block 14, a pressure sensor 16 is fixedly arranged at one end of the second slide block 14, a chain 17 is arranged in the second slide block 14 in a penetrating manner, a driving gear 18 is arranged at one end of the chain 17 far away from the mold layer 5 in a meshing manner, two driven gears 19 are arranged at one end of the chain 17 close to the mold layer 5 in a meshing manner, so that the driving gear 18, the top end of the second slider 14 is provided with a notch 20, the bottom plate of the second slider 14 is provided with a second slide rail 21, and a third slider 22 is slidably arranged in the second slide rail 21. In addition, during specific application, a push-pull device is arranged at one end, away from the mold layer 5, of the nail bin 4, the push-pull device is connected with the mold layer 5, the push-pull device is the prior art in the die casting machine, and details are not repeated here.

Further, the first cooling device 2 includes a plate heat exchanger 201, a water inlet 202 and a cooling outlet 203 are respectively disposed on two sides of a bottom end of the plate heat exchanger 201, a water outlet 204 and a cooling inlet 205 are respectively disposed on two sides of a top end of the plate heat exchanger 201, a cooling pipe 206 is fixedly disposed between the water inlet 202 and the water outlet 204, and the cooling pipe 206 alternately penetrates through the whole cooling layer 1 in a bow shape. In addition, during specific application, cooling entry 205 department is provided with the solenoid valve, thereby accessible controller 26 control is from time and the dose that cooling entry 205 got into the coolant, controller 26 control solenoid valve's switch, thereby control refrigerant enters into plate heat exchanger 201 from cooling entry 205 department, and then can cool down to the water inlet 202 and the delivery port 204 of cooling tube 206, and then can cool down cooling layer 1 and mould layer 5, and through closing of controller 26 control solenoid valve, can stop refrigeration when liquid metal enters into mould layer 5, avoid liquid metal not yet the shaping just to solidify under microthermal influence.

Further, the first cooling device 2 and the second cooling device 6 are completely consistent in structure, and the first cooling device 2 and the second cooling device 6 are perpendicular to each other in position, so that the cooling area can be increased, the cooling efficiency is improved, and one end, away from the first slide rail 11, of the servo electric cylinder 12 and one surface, away from the mold layer 5, of the nail bin 4 are fixed together.

Further, first thimble 9 includes thimble housing 901, one end of thimble housing 901 is fixedly provided with first spring 902, one end of thimble housing 901 far away from first spring 902 is fixedly provided with fixture block 903, one end of thimble housing 901 close to fixture block 903 is provided with lubricant outlet 904, thimble housing 901 is internally sleeved with rubber container 905, material outlet 906 is provided on the cylindrical surface of rubber container 905, one end of rubber container 905 close to first spring 902 is provided with pressing plate 907, and one end of pressing plate 907 close to first spring 902 is fixedly provided with second spring 908. In addition, during specific application, a groove is formed in the mold layer 5 at a position corresponding to the first thimble 9 and the third thimble 23, so that the fixture block 903 at the top end of the thimble housing 901 and the groove on the surface of the mold layer 5 can be matched with each other, when the first spring 902 is in a stretching state, the top surface of the thimble housing 901 and the surface of the mold layer 5 are always kept flush, thereby avoiding partial loss of the mold layer 5 caused by separation of the first thimble 9, the second thimble 15 and the third thimble 23, and further avoiding deformation of liquid metal in the cooling molding process.

Further, the structures of the first thimble 9 and the third thimble 23 are completely the same, except that the length of the thimble housing 901 in the first thimble 9 is greater than the length of the thimble housing 901 in the third thimble 23, so that the stretching degree of the first spring 902 in the first thimble 9 is less than the stretching degree of the first spring 902 in the third thimble 23, when the servo cylinder 12 stretches, the first spring 902 in the first thimble 9 firstly restores the length and enters a compressed state along with the stretching of the servo cylinder 12, then a force in the direction of the cooling layer 1 is applied to the first thimble 9, so that the top end of the first thimble 9 firstly pushes into the mold layer 5, so as to perform demolding on the side of the molded die casting close to the middle of the mold layer 5, and under the continuous stretching and propelling action of the servo cylinder 12, the first spring 902 in the third thimble 23 starts to restore the length and enters the compressed state, and then the top end of the third thimble 23 is jacked into the die layer 5, so that the side of the formed die casting close to the edge of the die layer 5 is demoulded, and the effect of secondary demoulding is achieved.

Furthermore, the eight second ejector pins 15 are respectively fixed to the upper surface and the lower surface of the second slider 14 by welding, the third slider 22 is fixed to the chain 17 by welding, the driving gear 18 and the two driven gears 19 expand the chain 17 into an equilateral triangle, and the chain 17 passes through the hollow portion of the second slider 14.

Further, a rotating motor 24 is fixedly arranged on the top surface of the driving gear 18, a motor fixing bracket 25 is fixedly arranged on the top surface of the rotating motor 24, and the motor fixing bracket 25 and one end of the first slide rail 11 close to the servo electric cylinder 12 are fixed through welding.

Furthermore, the center of the ejector plate 8 is a circular plate 801, four rectangular plates 802 are arranged around the circular plate 801, the first ejector pins 9 are located on one sides of the four rectangular plates 802 close to the circular plate 801, and the third ejector pins 23 are located on one sides of the four rectangular plates 802 far away from the circular plate 801.

Further, the nail bin 4 comprises a nail bin cover 401 and a nail bin chamber 402, the nail bin cover 401 and one end, far away from the cooling layer 1, of the nail bin chamber 402 are connected through a hinge in a shaft mode, so that regular maintenance and maintenance can be carried out on internal mechanical parts by opening the nail bin cover 401, fault points can be timely opened and checked when faults occur, the time for dismounting and maintaining can be saved, the efficiency and the time can be further improved, and the working efficiency can be improved.

The working principle is as follows: when the cooling device is used, liquid metal enters the inner cavity of the mold through the feeding port in the center of the cooling layer 1, at this time, the controller 26 controls the on/off of the electromagnetic valve, so as to control refrigerant to enter the plate heat exchanger 201 from the cooling inlet 205, further cool the cooling pipe 206, further cool the cooling layer 1 and the mold layer 5, thereby accelerating the solidification molding speed of the liquid metal, at this time, the top ends of the first thimble 9, the second thimble 15 and the third thimble 23 are flush with one surface of the mold layer 5 close to the cooling layer 1, thereby ensuring that the liquid metal is not deformed due to the partial loss of the mold layer 5 caused by the separation of the first thimble 9, the second thimble 15 and the third thimble 23, and at this time, the first spring 902 at the bottom of the first thimble 9 and the third thimble 23 is in a stretching state, and due to the mutual matching effect of the fixture block 903 at the top end of the thimble housing and the groove on the surface of the mold layer 5, when the first spring 902 is in a stretched state, the top surface of the thimble housing 901 and the surface of the mold layer 5 are always kept flush, the push-pull device in the die casting machine drives the nail bin 4 and the mold layer 5 to move together in a direction away from the cooling layer 1, at this time, a backward signal is sent to the controller 26, the controller 26 sends a start signal to the rotating motor 24, so that the rotating motor 24 drives the driving gear 18 to rotate, the starting position of the third slider 22 is located at one end of the second slide rail 21 close to the pressure sensor 16, at this time, the driving gear 18 drives the chain 17 to move, the chain 17 drives the two driven gears 19 to rotate, so that the third slider 22 moves in the second slide rail 21, at this time, since the side where the third slider 22 is located is parallel to the second slide rail 21, when the chain 17 drives the third slider 22 to move, no movement is generated in the direction of the first slide rail 11, at this time, the top end of the second thimble 15 is kept flush with the side of the die layer 5 close to the cooling layer 1, after the third slider 22 touches the pressure sensor 16, the pressure sensor 16 transmits a signal to the controller 26, the controller 26 sends a signal to the servo electric cylinder 12, the servo electric cylinder 12 extends, because the length of the thimble housing 901 in the first thimble 9 is greater than that of the thimble housing 901 in the third thimble 23, the stretching degree of the first spring 902 in the first thimble 9 is less than that of the first spring 902 in the third thimble 23, when the servo electric cylinder 12 extends, the first spring 902 in the first thimble 9 firstly restores the length and enters a compressed state along with the extension of the servo electric cylinder 12, and then a force towards the direction of the cooling layer 1 is applied to the first thimble 9, so that the top end of the first thimble 9 firstly jacks the die layer 5, and the die-casting piece close to the middle of the die layer 5 is demoulded, in order to realize primary demolding, under the action of continuous extension and propulsion of the servo electric cylinder 12, the first spring 902 in the third ejector pin 23 starts to recover the length and enter a compressed state, and then the top end of the third ejector pin 23 is ejected into the mold layer 5, so that one side of the formed die casting close to the edge of the mold layer 5 is demolded, which is secondary demolding, and when the first spring 902 presses the ejector pin shell 901, under the action of the ejector pin plate 8, the second spring 908 also presses the pressing plate 907, so that the pressing plate 907 is pushed to press the rubber container 905, and further the material gap 906 is deformed, so that the lubricant comes out from the rubber container 905, and then the lubricant enters between the mold layer 5 and the formed die casting through the lubricant outlet 904, and drips from four corners of the die casting, so that the lubricating protection effect is realized, and meanwhile, the chain 17, the two driven gears 19 and the driving gear 18 form a triangle, therefore, after the third slide block 22 touches the pressure sensor 16, the third slide block 22 moves along the other two sides of the equilateral triangle along with the chain 17, at this time, in the direction of the first slide rail 11, the second slide block 14 is driven to move in the direction away from the mold layer 5, so as to drive the second slide block 14 to move in the direction away from the mold layer 5 in the direction of the first slide rail 11 through the first slide block 13, and further drive the second thimble 15 on the surface of the second slide block 14 to move in the direction away from the mold layer 5, when the third slide block 22 is located below the driving gear 18, the second slide block 14 is located at the position farthest from the mold layer 5, and at this time, the motor fixing bracket 25 does not obstruct the movement of the second slide block 14 through the notch 20 in the middle of the second slide block 14, at this time, the first thimble 9 and the third thimble 23 already eject the four corners of the molded die casting, the controller 26 controls the servo cylinder 12 to stop extending and keep still, at this time, the first thimble 9 and the third thimble 23 are stationary with respect to the mold layer 5, at this time, the driving gear 18 continues to rotate to drive the chain 17 to move, thereby driving the third slider 22 to continue to move in the second slide rail 21, and driving the second slider 14 to move in a direction close to the mold layer 5 in a direction of the first slide rail 11, when the third slider 22 comes to the driven gear 19 away from one end of the pressure sensor 16, at this time, the first slider 13, the second slider 14 and the third slider 22 all return to the initial positions, at this time, due to the extension of the servo electric cylinder 12, the second thimble 15 changes from the original state of being flush with the surface of the mold layer 5 to the protruding state, thereby being pushed into the mold layer 5, and further performing demolding on the middle position of the molded die casting, which is demolding for three times, by performing demolding on the four corners and the center of the die casting, it can be ensured that the die casting is completely separated from the mold layer 5, and the die casting is prevented from being protected to a certain extent under the action of the lubricant, the die casting is prevented from being damaged by pulling, the quality of the die casting is ensured, and the die casting is prevented from falling off from the die cavity due to the special shape of the die cavity when the die casting is subjected to primary demolding.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a die casting die with lubricated mechanism of automatic cooling, includes cooling layer (1), its characterized in that: a first cooling device (2) is arranged in the cooling layer (1), a sliding rail (3) is movably arranged at the bottom end of the cooling layer (1), a nail bin (4) is fixedly arranged at the other end of the sliding rail (3), a controller (26) is fixedly arranged on the top surface of the nail bin (4), a mold layer (5) is arranged on one side, close to the nail bin (4), of the cooling layer (1), a second cooling device (6) is arranged in the mold layer, a partition plate (7) is arranged on the surface, close to the cooling layer (1), of one side of the mold layer (5), a mold cavity is formed by the partition plate (7) and the edge of the mold layer (5), an ejector pin plate (8) is arranged on one side, far away from the cooling layer (1), of the ejector pin plate (8) is arranged in the middle of one side, close to the cooling layer (1), of the ejector pin plate (, eight third thimbles (23) are arranged on two sides of one surface of the thimble plate (8) close to the cooling layer (1), a support column (10) is fixedly arranged on one side of the thimble plate (8) far away from the mold layer (5), a first slide rail (11) is fixedly arranged on the other end of the support column (10), a servo electric cylinder (12) is fixedly arranged on the other end of the first slide rail (11), a first slide block (13) is arranged in the slide rail (11), a second slide block (14) is fixedly arranged on the top surface of the first slide block (13), two second thimbles (15) are fixedly arranged on both the top surface and the bottom surface of the second slide block (14), a pressure sensor (16) is fixedly arranged at one end of the second slide block (15), a chain (17) is arranged in the second slide block (14) in a penetrating manner, and a driving gear (18) is meshed with one end of the chain (17) far away from the, two driven gears (19) are arranged at one end, close to the mold layer (5), of the chain (17) in a meshed mode, a notch (20) is formed in the top end of the second sliding block (14), a second sliding rail (21) is formed in the bottom plate of the second sliding block (14), and a third sliding block (22) is arranged in the second sliding rail (21) in a sliding mode.

2. The die casting mold with the automatic cooling and lubricating mechanism as claimed in claim 1, wherein: the first cooling device (2) comprises a plate type heat exchanger (201), a water inlet (202) and a cooling outlet (203) are respectively arranged on two sides of the bottom end of the plate type heat exchanger (201), a water outlet (204) and a cooling inlet (205) are respectively arranged on two sides of the top end of the plate type heat exchanger (201), a cooling pipe (206) is fixedly arranged between the water inlet (202) and the water outlet (204), and the cooling pipe (206) is in a bow shape and alternately penetrates through the whole cooling layer (1).

3. The die casting mold with the automatic cooling and lubricating mechanism as claimed in claim 2, wherein: the structure of the first cooling device (2) is completely consistent with that of the second cooling device (6), the first cooling device (2) is perpendicular to the second cooling device (6), and one end, far away from the first sliding rail (11), of the servo electric cylinder (12) is fixed with one surface, far away from the mold layer (5), of the nail bin (4).

4. A die casting mold having an automatic cooling and lubricating mechanism according to claim 3, characterized in that: the first thimble (9) comprises a thimble shell (901), a first spring (902) is fixedly arranged at one end of the thimble shell (901), a clamping block (903) is fixedly arranged at one end, far away from the first spring (902), of the thimble shell (901), a lubricant outlet (904) is formed in one end, close to the clamping block (903), of the thimble shell (901), a rubber container (905) is sleeved in the thimble shell (901), a discharging gap (906) is formed in the surface of a cylinder of the rubber container (905), a pressing plate (907) is arranged at one end, close to the first spring (902), of the rubber container (905), and a second spring (908) is fixedly arranged at one end, close to the first spring (902), of the pressing plate (907).

5. The die casting mold with the automatic cooling and lubricating mechanism as claimed in claim 4, wherein: the first thimble (9) and the third thimble (23) have the same structure, and the difference is that the length of a thimble shell (901) in the first thimble (9) is greater than the length of a thimble shell (901) in the third thimble (23).

6. The die casting mold with the automatic cooling and lubricating mechanism as claimed in claim 5, wherein: eight second thimble (15) are fixed through the welding with upper surface, the lower surface of second slider (14) respectively, third slider (22) with through welded fastening between chain (17), drive gear (18) and two driven gear (19) prop open chain (17) for an equilateral triangle, the hollow portion of second slider (14) is passed in chain (17).

7. The die casting mold with the automatic cooling and lubricating mechanism as claimed in claim 6, wherein: the fixed rotation motor (24) that is provided with of drive gear (18) top surface, the fixed motor fixed bolster (25) that is provided with of top surface of rotating motor (24), motor fixed bolster (25) with first slide rail (11) are close to the one end of servo electric cylinder (12) is fixed through the welding.

8. The die casting mold with an automatic cooling and lubricating mechanism as claimed in claim 7, wherein: the center of thimble board (8) is circular slab (801), encircle all around being provided with about four rectangular plate (802) circular slab (801), first thimble (9) are located four rectangular plate (802) are close to one side of circular slab (801), third thimble (23) are located four rectangular plate (802) keep away from one side of circular slab (801).

9. The die casting mold with the automatic cooling and lubricating mechanism as claimed in claim 8, wherein: the nail bin (4) comprises a nail bin cover (401) and a nail bin chamber (402), and the nail bin cover (401) and one end, far away from the cooling layer (1), of the nail bin chamber (402) are connected through hinges in a shaft mode.