CN217666302U - A honeycomb pouring three-plate die-casting mold - Google Patents

Abstract

The utility model discloses a honeycomb-type pouring three-plate die-casting mold, which relates to the technical field of die-casting molds. , A plurality of shunt blocks connected with the gate and a plurality of guide columns connected with the multiple shunt blocks one by one, the guide columns are inverted cones; the movable mold is provided with a movable mold core, and the fixed mold is provided with a fixed mold A cavity with multiple feeding ports is formed between the core, the movable core and the fixed core; the fixed die is provided with a vertical guide column and a limit pull rod; the core pulling mechanism includes a slider seat, a slider inserted into the slider seat The inclined guide column and the core-pulling fixed on the slider seat; the input end of the ejection mechanism is connected with the die-casting machine, and the output end is arranged on the second parting surface corresponding to the position of the cavity, the utility model The products produced have good forming effect, and solve the quality defects of penetrating under-casting and shrinkage of cast products such as radiators or water tanks.

Description

A three-plate die-casting mold with honeycomb feeding

technical field

The utility model relates to the technical field of die-casting molds, in particular to a three-plate die-casting mold with honeycomb feeding.

Background technique

Die-casting mold is a method of casting liquid die forging, and the manufacturing process is generally completed on a special die-casting die forging machine. The basic process is that the molten metal is first cast and filled into the cavity of the mold at low or high speed, and the mold has a movable cavity surface, which is forged under pressure during the cooling process of the molten metal, which not only eliminates the shrinkage cavity and porosity of the blank Defects make the internal structure of the blank reach broken grains in the forged state, so the comprehensive mechanical properties of the blank are significantly improved.

In recent years, with the rapid development of the new energy vehicle industry, the requirements for the use of aluminum alloys are getting higher and higher, and the quality requirements of the products are becoming more and more stringent. The quality of some die-casting products of new energy vehicles is difficult to control during the production process. For example, both the radiator and the water tank have cooling fins. The weight difference between the cooling fins and the body structure is large, and there are few connection positions between the body structure and the cooling fin structure. The existing traditional pouring method is only one parting surface , the parting surface is located on the side of the casting. The products produced in this way are defective, such as penetrating undercasting and shrinkage defects. The common defect is that the top of the casting cannot be effectively filled.

However, the casting and the pouring mechanism of the three-plate die-casting mold are in two different parting surface layers. It is necessary to open the two parting surfaces through the mold to separate the pouring mechanism and the casting. However, the demoulding of the existing three-plate die-casting mold not effectively.

Utility model content

The utility model discloses a three-plate die-casting mold with honeycomb type pouring, which solves the technical problems of defective finished products and poor demoulding effect of some die-casting products.

In order to solve the above technical problems, the utility model proposes the following optimization technical solutions:

A honeycomb pouring three-plate die-casting mold, comprising a fixed mold, a middle plate, a movable mold, a pouring mechanism, a core-pulling mechanism and an ejection mechanism, the pouring mechanism is arranged on the fixed mold, and the fixed mold A first parting surface is formed between the middle plate and a second parting surface between the middle plate and the movable mold;

The pouring mechanism includes a gate, a plurality of flow diverter blocks communicated with the gate, and a plurality of flow guide columns connected with the plurality of flow divider blocks one by one, and the flow guide columns are inverted cones;

The movable mold is provided with a movable mold core, and the fixed mold is provided with a fixed mold core. A cavity with a plurality of feeding ports is formed between the movable mold core and the fixed mold core. The guide column is aligned with the multiple feed ports one by one, the upper end surface of the cavity is set on the first parting surface, and the lower end surface is set on the second parting surface;

The fixed mold is provided with a vertical guide column and a limit rod, the vertical guide column is slidably connected with the middle plate and the movable mold, the limit hole is provided on the limit rod, and the middle plate There is a limit column on the top, and the limit column is placed in the limit hole;

The core-pulling mechanism includes a slider seat, an inclined guide post inserted into the slider seat, and a core-pulling fixed on the slider seat, one end of the inclined guide post is fixed on the middle plate, the The core pulling is arranged in the cavity, and the angle between the inclined guide post and the slider seat is less than 90 degrees;

The input end of the ejection mechanism is connected to the die-casting machine, and the output end is arranged on the second parting surface corresponding to the position of the cavity.

Further, both the middle plate and the movable mold are provided with guide grooves for inserting the vertical guide columns, and the inner walls of the guide grooves are provided with guide sleeves.

Further, it also includes a fixing mechanism, the fixing mechanism includes a base and a square iron, the base is arranged under the ejection bottom plate, the square iron is fixed between the base and the movable mold, the The bottom end of the inner wall of the square iron is provided with a boss, and the ejection bottom plate is placed on the boss.

Further, the fixing mechanism further includes a support column, the support column passes through the ejection bottom plate and the ejection top plate and is fixed on the base and between the movable mold.

Further, a sprue sleeve is sheathed on the outside of the sprue, and a cooling ring is sheathed on the outside of the sprue sleeve.

Further, the ejection mechanism includes an ejection bottom plate, an ejection top plate fixed on the ejection bottom plate, and an ejection rod fixed on the ejection top plate, and the end of the ejection rod is arranged on the same side as the cavity. The position corresponds to the second parting surface.

Further, the ejection mechanism further includes a return rod, and the return rod is fixed between the ejection top plate and the middle plate.

Further, the inclined guide post is fixed on the middle plate through a pressing block, and the slider seat is provided with a guide hole through which the inclined guide post passes.

Further, the middle plate is provided with a receiving groove for accommodating the slider seat, and the outer wall of the middle plate is provided with a limiting block, and the limiting block is used to close the receiving groove.

Further, the bottom surface of the middle plate is provided with an anti-collapse insert.

Compared with the prior art, the utility model has the following beneficial effects:

1. The guide column is set above the cavity, and multiple guide columns are aligned with the multiple feed ports of the cavity one by one, which can fill the cavity to the greatest extent, and the products produced have good molding effect and solve the problem of Eliminate the quality defects of penetrating undercasting and shrinkage porosity of casting products such as radiators or water tanks;

2. The vertical guide column, limit rod and core-pulling mechanism are set up. When the fixed mold moves upward, because the guide column is set as an inverted cone, the guide column can be easily separated from the middle plate. Driven by the pull rod and the limit rod, the middle plate also moves upwards. When the middle plate moves upwards, the core-pulling is pulled out, and the casting is ejected through the ejector mechanism. This method is easier to complete the demoulding, and solves the problem of poor demoulding effect. technical flaws.

Description of drawings

Fig. 1 is a sectional view one of a three-plate die-casting mold of the present invention.

Fig. 2 is the second cross-sectional view of the three-plate die-casting mold of the present invention.

Fig. 3 is a structural schematic view of the pouring mechanism and castings of the present invention.

In the figure: 1. fixed mold; 2. middle plate; 3. movable mold; 4. first parting surface; 5. second parting surface; 6. gate; 7. diverter block; 8. diversion column; 9. Moving mold core; 10. Fixed mold core; 11. Vertical guide column; 12. Limiting rod; 13. Limiting hole; 14. Limiting column; 15. Slider seat; 16. Inclined guide column; 17 , core pulling; 18, guide sleeve; 19, base; 20, square iron; 21, boss; 22, support column; 23, sprue sleeve; 24, cooling ring; ; 27, ejector rod; 28, return rod; 29, limit block; 30, anti-collapse insert; 31, casting; 32, screw; 33, pressing block.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

Referring to Figure 1-3, a three-plate die-casting mold with honeycomb feeding, including a fixed mold 1, a middle plate 2, a movable mold 3, a pouring mechanism, a core-pulling 17 mechanism and an ejection mechanism, and the fixed mold 1 is fixed on the die-casting machine The movable mold 3 is fixed on the movable mold base of the die-casting machine on one side of the pressure chamber, the ejector mechanism is connected to the power output end of the die-casting machine, the pouring mechanism is set on the fixed mold 1, A first parting surface 4 is formed between the fixed mold 1 and the middle plate 2, and a second parting surface 5 is formed between the middle plate 2 and the movable mold 3;

The pouring mechanism includes a gate 6, a plurality of diverter blocks 7 communicated with the gate 6, and a plurality of guide columns 8 communicated with the plurality of diverter blocks 7 one by one, and the gate 6 is connected with the die-casting machine. The metal liquid flows into the gate 6 from the pressure chamber or nozzle, and the guide column 8 is an inverted cone. When demoulding, the flow channel is separated from the product at the moment of mold opening, which is more convenient for demoulding. mold;

The movable mold 3 is provided with a movable mold core 9, and the fixed mold 1 is provided with a fixed mold core 10, and between the movable mold core 9 and the fixed mold core 10 is formed a mold with a plurality of feeding ports. In the mold cavity, a plurality of guide columns 8 are aligned with a plurality of feed inlets, the feed inlet is specifically located at the top of the heat sink, and the molten metal flows into the mold cavity from top to bottom from the guide body, The upper part of the casting 31 is effectively filled, the upper end surface of the cavity is set on the first parting surface 4, and the lower end surface is set on the second parting surface 5, the casting 31 formed in the cavity Demoulding between the first parting surface 4 and the second parting surface 5;

The fixed mold 1 is provided with a vertical guide column 11 and a limit pull rod 12, the vertical guide column 11 is slidingly connected with the middle plate 2 and the movable mold 3, and the vertical guide column 11 has a connecting fixed mold 1. The role of the middle plate 2 and the movable mold 3 also has the function of guiding. The limit rod 12 is provided with a limit hole 13, and the middle plate 2 is provided with a limit column 14. The limit column 14 Placed in the limiting hole 13, the limiting column 14 and the limiting hole 13 cooperate to limit the movement range of the fixed mold 1;

The core-pulling mechanism 17 includes a slider seat 15, an inclined guide post 16 inserted into the slider seat 15, and a core-pulling 17 fixed on the slider seat 15. One end of the inclined guide post 16 is fixed on the On the middle plate 2, the core pulling 17 is arranged in the cavity, and the angle between the inclined guide column 16 and the slider seat 15 is less than 90 degrees;

The input end of the ejection mechanism is connected to the die-casting machine, and the output end is set on the second parting surface 5 corresponding to the position of the cavity.

In the above technical scheme, the die base of the die-casting machine moves upwards, and the moment the first parting surface 4 separates, the inverted cone is separated from the product. Since the gate 6 is connected to the pressure chamber of the fixed die, the fixed die 1 follows the gate 6 and moves upward. During the movement of the fixed mold 1, the limit rod 12 moves upward, and the limit column 14 limits the position of the fixed mold 1 from the top end of the limit hole 13 to the bottom end of the limit hole 13. Then slide upwards, at this time, the fixed mold 1 drives the middle plate 2 to move upwards, and the second parting surface 5 separates, because one end of the inclined guide post 16 is fixed on the middle plate 2 and the other end is inserted into the slider seat 15 at an angle of less than 90 degrees , when the inclined guide column 16 moves upward in the slider seat 15, the slider seat 15 moves to the right, pulls the core 17 out of the cavity, and then provides power to the ejector mechanism through the die-casting machine to eject the casting 31, and the casting is completed. 31's of demoulding.

It can be understood that there are many options for fixing the limit rod 12 and the vertical guide column 11 on the fixed mold 1, fixing the limit column 14 on the middle plate 2, and fixing the core pulling 17 on the slider seat 15. , so as to realize the fixing function, for example, fixing by screws 32 or bolts.

Referring to Fig. 3, the side of the produced casting 31 has a through hole. If the side of the casting 31 has a through hole, curved surface or undercut, if the product is directly ejected, the casting 31 will be buckled on the movable mold core 9 and cannot be demolded. The function of the core-pulling 17 mechanism is to solve the problem of mold ejection when there are through holes, arc surfaces or undercuts on the side of the product. Before the mold is ejected, the core-pulling 17 is pulled out of the cavity, and the casting 31 can be ejected normally. It can be understood that the number of core-pulling 17 mechanisms is not limited here, and the number of core-pulling 17 mechanisms is specifically determined according to the through holes, arc surfaces and undercut structures on the side of the product.

Both the middle plate 2 and the movable mold 3 are provided with guide grooves for the insertion of the vertical guide pillars 11. The inner wall of the guide groove is provided with a guide sleeve 18. When the fixed mold 1 moves up and down, the vertical guide pillars 11 will produce friction when sliding in the guide groove, and the guide sleeve 18 plays the role of preventing the contact between the vertical guide post 11 and the middle plate 2 and the movable mold 3 to cause abrasion.

This die-casting mold also comprises fixing mechanism, and described fixing mechanism comprises base 19 and square iron 20, and described base 19 is arranged on the below of described ejection bottom plate 25, and described square iron 20 is fixed on described base 19 and described movable Between the molds 3, the square iron 20 plays the role of supporting the movable mold 3. The bottom end of the inner wall of the square iron 20 is provided with a boss 21, and the ejection bottom plate 25 is placed on the boss 21, and the boss 21 Specifically, it is a structure in which the inner wall of the square iron 20 protrudes outwards, and its upper surface is a plane for carrying the ejected bottom plate 25 .

The fixing mechanism also includes a support column 22, the support column 22 runs through the ejection bottom plate 25 and the ejection top plate 26 and is fixed between the base 19 and the movable mold 3, also for supporting The movable mold 3 prevents the middle part of the movable mold 3 from collapsing.

The sprue 6 is covered with a sprue sleeve 23, which plays a role of connecting and fixing the sprue 6 and the chamber of the die-casting machine, and also has the function of cooling the molten metal. The sprue sleeve 23 is covered with a cooling The ring 24 and the cooling jacket are used for cooling the sprue bushing 23 .

Described ejection mechanism comprises ejection bottom plate 25, the ejection top plate 26 that is fixed on the ejection bottom plate 25 and the ejection bar 27 that is fixed on the ejection top plate 26, and the end of described ejection bar 27 is located at and On the second parting surface 5 corresponding to the position of the cavity, the ejector bottom plate 25 is connected to the power output end of the die-casting machine, and the power output end of the die-casting machine lifts up the ejector bottom plate 25, and the ejector rod 27 is on the second The parting surface 5 ejects the casting 31 to complete the demoulding of the casting 31 . It can be understood that there are many options for the connection of the ejection bottom plate 25 and the ejection top plate 26, and the connection manner of the ejection top plate 26 and the ejection rod 27, so as to realize the fixing effect, for example, by screws 32 or bolts connect.

The ejector mechanism also includes a return rod 28, which is fixed between the ejection top plate 26 and the middle plate 2, and the return rod 28 is connected with the mold return mechanism of the die-casting machine. Die 1 presses down to carry out compression molding to realize the reset of fixed mold 1 and middle plate 2. When the middle plate 2 is reset downward, it presses against the return rod 28. At this time, the return rod 28 is reset downward under force, and the ejection is realized at the same time. Agency reset.

The slanted guide post 16 is fixed on the middle plate 2 through a pressure block 33, and the slider seat 15 is provided with a guide hole for the slanted guide post 16 to pass through. The included angle is less than 90 degrees, so the guide hole is also compatible with the inclined guide post 16. It can be understood that there are many options for connecting the pressure block 33 with the middle plate 2 and the inclined guide post 16 , so as to realize the fixing function, for example, the connection is fixed by screws 32 or bolts.

The middle plate 2 is provided with an accommodating groove for accommodating the slider seat 15, and the outer wall of the middle plate 2 is provided with a limiting block 29, and the limiting block 29 is used to close the accommodating groove. When 16 moves upward, the slider seat 15 moves to the right in the receiving groove, and the limit block 29 is used to limit the sliding range of the slider seat 15 to prevent the middle plate 2 from sliding out.

The bottom surface of the middle plate 2 is provided with an anti-pressure collapse insert 30. Since the movable mold 3, the middle plate 2 and the fixed mold 1 are only connected by the vertical guide pillars 11, there is no other supporting structure, and the molten metal belt If there is a certain acceleration from the gate into the cavity, the middle plate may collapse, and the anti-collapse insert 30 is used to prevent the middle plate 2 from collapsing.

The above descriptions are only specific implementation methods of the present utility model, so that those skilled in the art can understand or realize the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims (10)

1. A three-plate die-casting mold for honeycomb type pouring, comprising a fixed mold, a middle plate, a movable mold, a pouring mechanism, a core-pulling mechanism and an ejection mechanism, the pouring mechanism is arranged on the fixed mold, and the A first parting surface is formed between the fixed mold and the middle plate, and a second parting surface is formed between the middle plate and the movable mold, which is characterized in that; The pouring mechanism includes a gate, a plurality of flow diverter blocks communicated with the gate, and a plurality of flow guide columns connected with the plurality of flow divider blocks one by one, and the flow guide columns are inverted cones; The movable mold is provided with a movable mold core, and the fixed mold is provided with a fixed mold core. A cavity with a plurality of feeding ports is formed between the movable mold core and the fixed mold core. The guide column is aligned with the multiple feed ports one by one, the upper end surface of the cavity is set on the first parting surface, and the lower end surface is set on the second parting surface; The fixed mold is provided with a vertical guide column and a limit rod, the vertical guide column is slidably connected with the middle plate and the movable mold, the limit hole is provided on the limit rod, and the middle plate There is a limit column on the top, and the limit column is placed in the limit hole; The core-pulling mechanism includes a slider seat, an inclined guide post inserted into the slider seat, and a core-pulling fixed on the slider seat, one end of the inclined guide post is fixed on the middle plate, the The core pulling is arranged in the cavity, and the angle between the inclined guide post and the slider seat is less than 90 degrees; The input end of the ejection mechanism is connected to the die-casting machine, and the output end is arranged on the second parting surface corresponding to the position of the cavity. 2. The three-plate die-casting mold of a kind of honeycomb pouring according to claim 1, it is characterized in that, described ejection mechanism comprises ejection bottom plate, the ejection top plate fixed on the ejection bottom plate and the ejection top plate fixed on the ejection top plate The ejector rod on the top, the end of the ejector rod is set on the second parting surface corresponding to the position of the cavity. 3. The three-plate die-casting mold of a kind of honeycomb type pouring according to claim 1, is characterized in that, described middle plate and described moving mold are all provided with the guide groove that inserts for described vertical guide post, and described The inner wall of the guide groove is provided with a guide sleeve. 4. The three-plate die-casting mold of a kind of honeycomb pouring according to claim 2, is characterized in that, also comprises fixing mechanism, and described fixing mechanism comprises base and square iron, and described base is arranged on the bottom of described ejection. Below, the square iron is fixed between the base and the movable mold, the bottom end of the inner wall of the square iron is provided with a boss, and the ejection bottom plate is placed on the boss. 5. The three-plate die-casting mold of honeycomb type feeding according to claim 4, characterized in that, the fixing mechanism further comprises a support column, and the support column passes through the ejection bottom plate and the ejection top plate and It is fixed on the base and between the movable mold. 6 . The three-plate die-casting mold with honeycomb pouring according to claim 1 , wherein a sprue sleeve is placed outside the sprue, and a cooling ring is placed outside the sprue sleeve. 6 . 7. A three-plate die-casting mold with honeycomb pouring according to claim 2, characterized in that, the ejection mechanism further includes a return rod, and the return rod is fixed on the ejection top plate and the middle plate between. 8. The three-plate die-casting mold of honeycomb type pouring according to claim 1, characterized in that, the inclined guide column is fixed on the middle plate through a pressing block, and the slider seat is provided for the Guide hole through which the angled guide post passes. 9. A three-plate die-casting die of honeycomb type pouring according to claim 1, characterized in that, the middle plate is provided with an accommodating groove for accommodating the slider seat, and the outer wall of the middle plate is provided with a limiter. A position block, the limit block is used to close the accommodating groove. 10. A three-plate die-casting mold with honeycomb type feeding according to claim 1, characterized in that, the bottom surface of the middle plate is provided with an anti-collapse insert.

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