A die-casting machine for automobile throttle housing

Abstract

The present invention discloses a die-casting machine for automobile throttle housing, which relates to the field of automobile parts die-casting technology, including a frame frame, a hydraulic press is fixedly installed on the top of the frame frame in a left-right symmetrical shape, a slide is installed on the bottom plate of the frame frame in a front-back symmetrical shape, a fixed pressure mold is installed at the bottom of the hydraulic press and located inside the frame frame, a dynamic pressure mold is installed between the two fixed pressure molds, a condenser is installed on the back side of the two fixed pressure molds, and an external annular tube is embedded and installed on the inner side of the fixed pressure mold and the dynamic pressure mold, and an internal annular tube is installed on the inner side of the external annular tube. The die-casting machine for automobile throttle housing uses the internal annular tube to maintain and adjust the overall temperature change of the external annular tube and the casting cavity in a balanced manner, thereby avoiding the problem of local cracking caused by uneven temperature loss of the metal liquid inside the casting cavity, and the multiple temperature control and efficient cooling of the mold improve the production efficiency and ensure the consistency of product quality.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts die-casting, in particular to a die-casting molding machine for an automobile throttle housing. Background Art

[0002] With the development of the automobile industry, automobile throttle housing, as an important engine component, has put forward higher requirements on its manufacturing process; the traditional manufacturing method usually adopts machining and welding, but this method is inefficient, the accuracy is difficult to guarantee, and there is serious waste of materials; the die-casting molding process has become the preferred process for manufacturing automobile throttle housings due to its advantages such as high efficiency, precision and high material utilization rate; however, the existing die-casting molding equipment has the problem of uneven temperature change in the mold cavity during the die-casting production process of the throttle housing, which will directly cause the local cracking problem caused by the uneven temperature loss of the metal liquid inside the mold cavity; therefore, it is of great practical significance to develop a new type of automobile throttle housing die-casting molding machine to improve production efficiency and product quality. Summary of the invention

[0003] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a die-casting molding machine for an automobile throttle housing, comprising a frame frame, a hydraulic press is fixedly installed on the top of the frame frame in a left-right symmetrical shape, a slide is installed on the bottom plate of the frame frame in a front-back symmetrical shape, a fixed pressure mold is installed at the bottom of the hydraulic press and located on the inner side of the frame frame, and the number of fixed pressure molds is two, a dynamic pressure mold is installed between the two fixed pressure molds, and the overall dynamic pressure mold is a left-right symmetrical structure design, a condenser is installed on the back side of the two fixed pressure molds, and thin sliding rods are installed through the top corners of the fixed pressure mold and the dynamic pressure mold, and thick sliding rods are installed through the bottom corners of the fixed pressure mold and the dynamic pressure mold, and the thick sliding rods and the thin sliding rods are both inserted on the frame frame;

[0004] A convex tube is fixedly connected to the top of the fixed-pressure mold and the middle of the side close to the dynamic-pressure mold, a ring tube head is connected to the top of the convex tube, and a feed tube is fixedly connected to the surface of the ring tube head; an external ring tube is embedded and installed on the inner sides of the fixed-pressure mold and the dynamic-pressure mold, an internal ring tube is installed on the inner side of the external ring tube, and the internal ring tube is embedded and installed on the inner sides of the fixed-pressure mold and the dynamic-pressure mold, the circular ring where the external ring tube is located wraps the circular ring where the internal ring tube is located, and the external ring tube and the internal ring tube are both notched circular ring structures as a whole, and the external ring tube and the internal ring tube are both composed of annular flat tubes with four notches, wherein the external ring tube and the internal ring tube are both used to insulate and cool the casting cavity.

[0005] Preferably, an input pipe is fixedly connected to one side of the notch on the surface of the external annular tube, and the input pipe is used to simultaneously transport cooling medium into the four annular flat tubes; an output pipe is fixedly connected to the other side of the notch on the surface of the external annular tube; an introduction pipe is fixedly connected to the middle of the notch on the surface of the internal annular tube; and an outlet pipe is fixedly connected to the surface of the internal annular tube away from the notch, and the outlet pipe is used to transport the heat-conducting medium transported to the inside of the internal annular tube out;

[0006] A group of built-in ring tubes installed on the inner side of the dynamic pressure mold are threadedly connected with a shunt tube, and the inlet tubes on the two built-in ring tubes are connected to the shunt tube. The shunt tube simultaneously transports heat-conducting medium to the inner sides of the two built-in ring tubes inside the dynamic pressure mold, so as to transfer the heat in the mold cavity of the dynamic pressure mold. The design of the shunt tube and the built-in ring tube improves the heat exchange efficiency, ensures that the temperature in the mold cavity is rapidly reduced, and improves the production efficiency; the uniform distribution of the shunt tube ensures the uniform flow of the heat-conducting medium in the built-in ring tube, ensures the uniform distribution of the temperature in the mold cavity, and improves the product quality; the addition of the shunt tube makes the structure of the heat exchange system more reasonable, reduces the medium flow resistance, and improves the operation efficiency of the system.

[0007] Preferably, a cross is installed on the back surfaces of the two constant-pressure molds, and a condenser is fixedly installed in the middle inner side of the cross, the condenser is used to assist in cooling and dissipating the constant-pressure mold, a base is installed at the bottom of the cross, and the base is fixedly installed on the bottom plate of the frame plate, a foot is installed on the slide, the foot is slidably installed with the frame plate through the slide, the foot is assembled with the dynamic pressure mold through the coarse sliding rod, and the dynamic pressure mold slides on the coarse sliding rod and the thin sliding rod at the same time through the cooperation of the foot and the slide.

[0008] Preferably, DD motors are fixedly installed on both sides of the fixed-pressure mold close to the thin sliding rod, a first core column is installed in the middle of a surface of the fixed-pressure mold facing the dynamic pressure mold, a casting mold cavity is opened in the middle of the opposing surfaces of the dynamic pressure mold and the two fixed-pressure molds, and the structures installed inside the casting mold cavities of the two are the same, a top core block and a bottom core block are respectively embedded and installed on the top and bottom of the casting cavity of the dynamic pressure mold, wherein a second core column is embedded and installed in the middle of the casting cavity of the dynamic pressure mold, and there are two of them, a long screw is commonly installed in the middle of the two second core columns, and the two second core columns are threadedly installed with the dynamic pressure mold through the long screw.

[0009] Preferably, a short column is fixedly installed in the casting cavity of the dynamic pressure mold, and the short column is installed in the casting cavity in the shape of an equilateral triangle. A socket is provided in the middle of one side of the top core block and the bottom core block close to the short column. The top core block is inserted and positioned with the dynamic pressure mold through the cooperation of the short column and the socket. Similarly, the bottom core block is inserted and positioned with the dynamic pressure mold through the cooperation of the short column and the socket.

[0010] Preferably, the output end of the hydraulic press is connected to a pressure rod plug through a coupling, and the pressure rod plug is installed in an engaging manner with the ring tube head. The downward pressure of the pressure rod plug is used to hydraulically cast the metal into the mold cavity. The fixed-pressure mold is provided with an annular groove on the side facing the dynamic pressure mold, and the annular groove is annularly provided around the mold cavity. A vertical groove is provided at the connection between the convex tube and the fixed-pressure mold, and the vertical grooves are provided on both sides of the axis where the ring tube head is located. A short screw is installed in the middle of the side of the fixed-pressure mold away from the dynamic pressure mold, and the first core column is threadedly installed with the fixed-pressure mold through the short screw, and the first core column is inserted and fitted with the second core column through a long screw.

[0011] Preferably, the bottom corners of the fixed-pressure mold and the dynamic pressure mold are fixedly connected with blocks, and the blocks are mounted on the thick sliding rod. The top corners of the fixed-pressure mold and the dynamic pressure mold are fixedly connected with hoop sleeves, and the hoop sleeves are mounted on the thin sliding rod. The top of the dynamic pressure mold is fixedly connected with a semicircular tube, and the semicircular tube is installed in the middle of the side close to the fixed-pressure mold.

[0012] Preferably, the dynamic pressure mold is fixedly connected with an insert and an annular inlay on one side facing the fixed pressure mold, and the insert is installed on both sides of the axis where the semicircular tube is located, and the annular inlay is fixedly installed around the casting cavity of the dynamic pressure mold, the semicircular tube is installed in conjunction with the convex tube through the vertical groove and the insert, and the semicircular tube and the convex tube form a complete pipeline, wherein the top of the semicircular tube is fitted on the bottom of the annular tube head, the annular inlay is installed in conjunction with the annular groove, and the fixed pressure mold is encapsulated with the dynamic pressure mold through the insert and the vertical groove and the annular inlay and the annular groove, and the casting cavities of the two are connected together to form a complete casting cavity, which is used to cast a complete automobile throttle housing.

[0013] Preferably, a card slot is opened at the top corner of the base, the cross is installed in engagement with the base through the card slot, and the cross is fixed to the base by inserting a coarse sliding rod, nuts are threadedly installed on the surfaces of the coarse sliding rod and the thin sliding rod, the constant pressure mold is positioned and installed with the coarse sliding rod through the cooperation of a card block and a nut, the constant pressure mold is positioned and installed with the thin sliding rod through the cooperation of a hoop and a nut, and the constant pressure mold is positioned and installed with the frame frame through the coarse sliding rod and the thin sliding rod.

[0014] Preferably, a sleeve rod member is fixedly installed on the output end of the DD motor, and the end of the sleeve rod member away from the DD motor is fixedly connected to a plate body, a small hoop ring is fixedly connected to the middle of the plate body, and both ends of the plate body away from the small hoop ring are fixedly connected to large hoop rings, the small hoop ring is fitted with the hoop sleeve, and the large hoop ring is fitted with the dynamic pressure mold through the hoop sleeve.

[0015] The present invention provides a die-casting machine for an automobile throttle housing, which has the following beneficial effects:

[0016] 1. The die-casting molding machine of the automobile throttle housing uses a condenser and an inner and outer ring tube structure on the side of the fixed pressure mold away from the dynamic pressure mold to connect the input pipe to an external cooling medium delivery source, the output pipe to an external cooling medium return source, the introduction pipe to an external heat transfer medium delivery source, and the outlet pipe to an external heat transfer medium return source. The inner and outer two-layer ring tube temperature control structure formed around the mold cavity by the external ring tube and the internal ring tube can be used during die casting. The cooling medium is not input by the external ring tube close to the mold cavity, and the hollow structure formed by the external ring tube itself can be used to temporarily keep the mold cavity warm, thereby ensuring the fluidity and constant temperature of the molten metal in the mold cavity. , ensuring that the molten metal can be densely filled in every corner of the mold cavity during die-casting without leaving any dead corners; during the shaping period, the cooling medium and the heat-conducting medium are respectively transported to the inner side of the external ring tube and the internal ring tube, so that the external ring tube is close to the mold cavity for surrounding cooling and shaping, while the internal ring tube is used to maintain and adjust the overall temperature changes of the external ring tube and the mold cavity in a balanced manner, avoiding local cracking caused by uneven temperature loss of the molten metal inside the mold cavity; multiple temperature control and efficient cooling of the mold are realized, improving production efficiency; making it more convenient to accurately control the temperature in the mold cavity and ensuring consistency in product quality.

[0017] 2. The die-casting machine for the automobile throttle housing ensures that the mold can heat up and cool down quickly during the casting process through the dual ring tube structure of the internal ring tube and the external ring tube, thereby improving production efficiency; the design of the ring tube makes the temperature distribution of the mold more uniform, reduces thermal stress, and extends the life of the mold; the optimized insulation and cooling system reduces energy consumption, reduces energy consumption in the production process, and improves the environmental performance of the equipment.

[0018] 3. The die-casting machine for the automobile throttle housing, through the design of long screw and short screw, keeps the installation positions of the first core column and the second core column in the fixed pressure mold and the dynamic pressure mold fixed, and is also convenient for disassembly and maintenance. It can cooperate with the left and right reciprocating operation of the dynamic pressure mold for mold closing operations, and there is no need to adjust the position of the core column structure every time, which reduces downtime and improves production efficiency.

[0019] 4. The die-casting machine for the automobile throttle housing optimizes the structure of the pouring system, ensures the uniform flow of metal materials in the mold cavity, improves the uniformity and consistency of pouring, and improves the molding accuracy of the product; the optimized design of the pouring system reduces the waste of metal materials, improves production efficiency, and reduces production costs; the uniform pouring flow and stable pressure control reduce the pores and defects on the casting surface, and improves the quality and appearance of the product.

[0020] 5. The die-casting machine of the automobile throttle housing effectively prevents the overflow of molten metal through the design of annular grooves and vertical grooves, reduces material waste, reduces production costs, enhances the structural bonding strength when the fixed pressure mold and the dynamic pressure mold are closed, and ensures the safe die-casting and molding of molten metal in the mold cavity.

[0021] 6. The die-casting machine for the automobile throttle housing controls the rotation of the sleeve rod through a DD motor, making the locking operation of the mold more automated, ensuring the firmness of the mold under high pressure and preventing displacement and deformation; the automatic locking design reduces manual operation, making the operation more convenient and precise, and improving the degree of automation of the production line; the locking structure controlled by the DD motor improves the accuracy of mold positioning, reduces errors in the casting process, and improves product quality.

[0022] 7. The die-casting molding machine of the automobile throttle housing ensures that the mold can be firmly locked during the casting process, prevents the mold from shifting, and improves the casting quality through the design of the clamp block and the hoop sleeve, combined with the interlocking locking of the small hoop ring and the large hoop ring between the hoop sleeves on the top of the fixed pressure mold and the dynamic pressure mold; the design of the clamp block and the hoop sleeve makes the installation and disassembly of the mold more convenient, reduces the downtime of the production line, and improves production efficiency; the interlocking design of the fillet and the vertical groove makes the positioning of the mold more precise, ensures the alignment of the mold cavity, and improves the molding accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the external structure of a die-casting molding machine for an automobile throttle housing of the present invention;

[0024] Figure 2 It is a front view of a die-casting machine for a throttle housing of an automobile according to the present invention;

[0025] Figure 3 It is a schematic diagram of the assembly structure of the constant pressure mold and the DD motor of the present invention;

[0026] Figure 4 It is a schematic diagram of the assembly structure of the dynamic pressure mold and the second core column of the present invention;

[0027] Figure 5 It is a schematic diagram of the disassembled structure of the cross and the base of the present invention;

[0028] Figure 6 It is a schematic diagram of the disassembled structure of the second core column and the dynamic pressure mold of the present invention;

[0029] Figure 7 It is a schematic diagram of the partial assembly structure of the external annular tube, the internal annular tube and the dynamic pressure mold of the present invention;

[0030] Figure 8 It is a schematic diagram of the assembly structure of the DD motor and the first core column of the present invention;

[0031] Fig. 9 It is a structural schematic diagram of the external annular tube of the present invention;

[0032] Fig.10 It is a structural schematic diagram of the top core block of the present invention;

[0033] Fig.11 This is a schematic diagram of the structure of the built-in ring tube of the present invention;

[0034] Fig.12 It is a schematic diagram of the closed structure of the fixed pressure mold and the dynamic pressure mold of the present invention.

[0035] In the figure: 1, frame; 2, hydraulic press; 3, slide; 4, fixed pressure mold; 5, dynamic pressure mold; 6, cross; 7, base; 8, thick slide rod; 9, thin slide rod; 10, foot seat; 11, DD motor; 12, first core column; 13, top core block; 14, convex pipe; 15, feed pipe; 16, external ring pipe; 17, internal ring pipe; 18, shunt pipe; 19, second core column; 20, bottom core block; 21, long screw; 201, pressure rod plug; 4 1. Annular groove; 42. Vertical groove; 43. Short screw; 51. Block; 52. Hoop; 53. Semicircular tube; 54. Welding strip; 55. Annular inlay; 56. Short column; 61. Condenser; 71. Slot; 81. Nut; 111. Sleeve rod; 112. Plate; 113. Small hoop; 114. Large hoop; 131. Jack; 141. Ring pipe head; 161. Input pipe; 162. Output pipe; 171. Inlet pipe; 172. Outlet pipe. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0037] The first embodiment, as Figures 1 to 12As shown, the present invention provides a technical solution: a die-casting molding machine for an automobile throttle housing, comprising a frame frame 1, a hydraulic press 2 is fixedly installed on the top of the frame frame 1 in a left-right symmetrical shape, a slide 3 is installed on the bottom plate of the frame frame 1 in a front-back symmetrical shape, a fixed pressure mold 4 is installed at the bottom of the hydraulic press 2 and located on the inner side of the frame frame 1, and the number of the fixed pressure molds 4 is two, a dynamic pressure mold 5 is installed between the two fixed pressure molds 4, and the dynamic pressure mold 5 is designed as a left-right symmetrical structure as a whole, a condenser 61 is installed on the back side of the two fixed pressure molds 4, and thin slide bars 9 are installed through the top corners of the fixed pressure mold 4 and the dynamic pressure mold 5, and coarse slide bars 8 are installed through the bottom corners of the fixed pressure mold 4 and the dynamic pressure mold 5, and the coarse slide bars 8 and the thin slide bars 9 are both inserted on the frame frame 1;

[0038] A convex tube 14 is fixedly connected to the top of the fixed-pressure mold 4 and near the middle of the side of the dynamic pressure mold 5, and a ring tube head 141 is connected to the top of the convex tube 14, and a feed tube 15 is fixedly connected to the surface of the ring tube head 141; an external ring tube 16 is embedded and installed on the inner side of the fixed-pressure mold 4 and the dynamic pressure mold 5, and an internal ring tube 17 is installed on the inner side of the external ring tube 16, and the internal ring tube 17 is embedded and installed on the inner side of the fixed-pressure mold 4 and the dynamic pressure mold 5, and the circular ring where the external ring tube 16 is located wraps the circular ring where the internal ring tube 17 is located, and the external ring tube 16 and the internal ring tube 17 are both notched circular ring structures as a whole, and the external ring tube 16 and the internal ring tube 17 are both composed of annular flat tubes with four notches, wherein the external ring tube 16 and the internal ring tube 17 are both used to keep the mold cavity warm and cool.

[0039] An input pipe 161 is fixedly connected to one side of the notch on the surface of the external annular tube 16. The input pipe 161 is used to simultaneously transport cooling medium into the four annular flat tubes. An output pipe 162 is fixedly connected to the other side of the notch on the surface of the external annular tube 16. An inlet pipe 171 is fixedly connected to the middle of the notch on the surface of the internal annular tube 17. An outlet pipe 172 is fixedly connected to the surface of the internal annular tube 17 away from the notch. The outlet pipe 172 is used to transport the heat-conducting medium transported to the inside of the internal annular tube 17 out.

[0040] A group of built-in annular tubes 17 installed on the inner side of the dynamic pressure mold 5 are threadedly connected to a shunt tube 18, and the inlet tubes 171 on the two built-in annular tubes 17 are commonly connected to the shunt tube 18. The shunt tube 18 simultaneously transports heat-conducting medium to the inner sides of the two built-in annular tubes 17 on the inner side of the dynamic pressure mold 5, thereby exchanging and transferring heat in the mold cavity of the dynamic pressure mold 5.

[0041] A cross 6 is installed on the back surfaces of the two fixed-pressure molds 4, and a condenser 61 is fixedly installed in the middle inner side of the cross 6. The condenser 61 is used to assist in cooling and dissipating the fixed-pressure mold 4. A base 7 is installed at the bottom of the cross 6, and the base 7 is fixedly installed on the bottom plate of the frame 1. A foot 10 is installed on the slide 3. The foot 10 is slidably installed with the frame 1 through the slide 3. The foot 10 is assembled with the dynamic pressure mold 5 through the coarse slide bar 8. The dynamic pressure mold 5 slides on the coarse slide bar 8 and the thin slide bar 9 at the same time through the cooperation of the foot 10 and the slide 3.

[0042] DD motors 11 are fixedly installed on both sides of the fixed-pressure mold 4 close to the thin sliding rod 9, and a first core column 12 is installed in the middle of a side of the fixed-pressure mold 4 facing the dynamic pressure mold 5. A casting cavity is opened in the middle of the facing surfaces of the dynamic pressure mold 5 and the two fixed-pressure molds 4, and the structures installed inside the casting cavities of the two are the same. A top core block 13 and a bottom core block 20 are respectively embedded and installed on the top and bottom of the casting cavity of the dynamic pressure mold 5, wherein a second core column 19 is embedded and installed in the middle of the casting cavity of the dynamic pressure mold 5, and there are two of them, and a long screw 21 is commonly installed in the middle of the two second core columns 19, and the two second core columns 19 are threadedly installed with the dynamic pressure mold 5 through the long screw 21.

[0043] A short column 56 is fixedly installed in the casting cavity of the dynamic pressure mold 5, and the short column 56 is installed in the casting cavity in the shape of an equilateral triangle. A plug hole 131 is provided in the middle of one side of the top core block 13 and the bottom core block 20 close to the short column 56. The top core block 13 is inserted and positioned with the dynamic pressure mold 5 through the cooperation of the short column 56 and the plug hole 131. Similarly, the bottom core block 20 is inserted and positioned with the dynamic pressure mold 5 through the cooperation of the short column 56 and the plug hole 131.

[0044] The output end of the hydraulic press 2 is connected to a pressure rod plug 201 through a coupling, and the pressure rod plug 201 is installed in an interlocking manner with the ring tube head 141. The downward pressure of the pressure rod plug 201 is used to hydraulically cast the metal into the mold cavity. The design of the pressure rod plug 201 ensures that the molten metal is accurately injected into the mold cavity under high pressure, thereby improving the accuracy and consistency of casting; an annular groove 41 is provided on the side of the fixed-pressure mold 4 facing the dynamic pressure mold 5, and the annular groove 41 is annularly provided around the mold cavity, a vertical groove 42 is provided at the connection between the convex tube 14 and the fixed-pressure mold 4, and the vertical groove 42 is provided on both sides of the axis where the ring tube head 141 is located, a short screw 43 is installed in the middle of the side of the fixed-pressure mold 4 facing away from the dynamic pressure mold 5, and the first core column 12 is threadedly installed with the fixed-pressure mold 4 through the short screw 43, and the first core column 12 is inserted and fitted with the second core column 19 through the long screw 21.

[0045] The fixed-pressure mold 4 and the dynamic-pressure mold 5 are fixedly connected with blocks 51 at the bottom corners, and the blocks 51 are sleeved on the thick slide bar 8. The fixed-pressure mold 4 and the dynamic-pressure mold 5 are fixedly connected with hoop sleeves 52 at the top corners, and the hoop sleeves 52 are sleeved on the thin slide bar 9. The top of the dynamic-pressure mold 5 is fixedly connected with a semicircular tube 53, and the semicircular tube 53 is installed in the middle of the side close to the fixed-pressure mold 4.

[0046] A card slot 71 is opened at the top corner of the base 7, and the cross 6 is installed in engagement with the base 7 through the card slot 71, and the cross 6 is fixed to the base 7 through a coarse slide rod 8. Nuts 81 are threadedly installed on the surfaces of the coarse slide rod 8 and the thin slide rod 9. The constant pressure mold 4 is positioned and installed with the coarse slide rod 8 through the block 51 and the nut 81, and the constant pressure mold 4 is positioned and installed with the thin slide rod 9 through the hoop 52 and the nut 81. The constant pressure mold 4 is positioned and installed with the frame 1 through the coarse slide rod 8 and the thin slide rod 9.

[0047] When in use, the slide 3 is activated with the help of the foot 10 to drive the dynamic pressure mold 5, under the guidance of the thick slide bar 8 and the thin slide bar 9, so that the left side of the dynamic pressure mold 5 is molded with the fixed pressure mold 4 installed on the left side thereof, and then the DD motor 11 is activated to drive the plate 112 on the sleeve rod 111 to flip upward, so that the small hoop 113 and the large hoop 114 on the plate 112 are simultaneously fitted on the hoop 52 installed on the top of the fixed pressure mold 4 and the dynamic pressure mold 5, so as to press and lock the left side of the dynamic pressure mold 5 with the fixed pressure mold 4 installed on the left side thereof, so that the dynamic pressure mold 5 can be pressed and locked together. The middle part of the dynamic pressure mold 5 and the fixed pressure mold 4 is combined to form a complete mold cavity, and then the metal liquid is injected into the mold cavity in one direction through the feed pipe 15, and the hydraulic press 2 on the top of the fixed pressure mold 4 at this position is activated at the same time, and the hydraulic press 2 drives the pressure rod plug 201 to press vertically downward into the ring pipe head 141, and the metal hydraulic column is pushed into the mold cavity, so that the metal liquid is densely filled in the mold cavity; then, the cooling medium and the heat conducting medium are respectively introduced into the external ring pipe 16 and the internal ring pipe 17 on the fixed pressure mold 4 and the dynamic pressure mold 5, and the external ring pipe 16 and the internal ring pipe 17 are respectively connected to the fixed pressure mold 4 and the dynamic pressure mold 5. The inner ring tube 16 and the inner ring tube 17 are operated together in a two-layer temperature-controlled cooling mode, and the condenser 61 is activated to assist in cooling the surface of the fixed-pressure mold 4, so as to realize the rapid cooling and shaping of the shell. Then, the DD motor 11 can be activated to drive the sleeve rod 111 to return to its original position, and the slide 3 can be activated to separate the dynamic pressure mold 5 from the fixed-pressure mold 4 to expose the shaped shell, so as to remove the formed shell. At the same time, the slide 3 is continued to operate, and the dynamic pressure mold 5 is translated to the right by the slide 3, so that the dynamic pressure mold 5 is moved to the left. During the grinding of the shell, the side-mounted fixed-pressure mold 4 can be timely closed with the fixed-pressure mold 4 located on the right side of the dynamic pressure mold 5, and the same operation as mentioned above can be adopted to realize the die-casting processing of the second shell. Through the above operation, the dynamic pressure mold 5 can be moved back and forth between the two fixed-pressure molds 4 on the left and right sides to realize the continuous die-casting operation of the dynamic pressure mold 5 between the two fixed-pressure molds 4, without wasting the operation time during demolding, saving the shell die-casting production time, reducing time cost and improving output.

[0048] Through the condenser 61 and the inner and outer annular tube structures on the side of the fixed pressure mold 4 facing away from the dynamic pressure mold 5, the input pipe 161 is connected to the external cooling medium delivery source, the output pipe 162 is connected to the external cooling medium return source, the inlet pipe 171 is connected to the external heat transfer medium delivery source, and the outlet pipe 172 is connected to the external heat transfer medium return source. The inner and outer two-layer annular tube temperature control structure formed around the mold cavity by the external annular tube 16 and the internal annular tube 17 can be used during die casting to temporarily keep the mold cavity warm by using the hollow structure formed by the external annular tube 16 itself without inputting cooling medium, thereby ensuring the fluidity and constant temperature of the molten metal in the mold cavity. It ensures that the molten metal can be densely filled in every corner of the mold cavity during die-casting without leaving any dead corners; during the shaping period, the cooling medium and the heat-conducting medium are respectively transported to the inner sides of the external annular tube 16 and the internal annular tube 17, so that the external annular tube 16 is closely attached to the mold cavity for surrounding cooling and shaping, while the internal annular tube 17 is used to maintain and adjust the overall temperature changes of the external annular tube 16 and the mold cavity in a balanced manner, thereby avoiding local cracking problems caused by uneven temperature loss of the molten metal inside the mold cavity; multiple temperature control and efficient cooling of the mold are realized, thereby improving production efficiency; making it more convenient to accurately control the temperature in the mold cavity, thereby ensuring consistency in product quality.

[0049] In addition, the double ring tube structure of the internal ring tube 17 and the external ring tube 16 ensures that the mold can be quickly heated and cooled during the casting process, thereby improving production efficiency; the design of the ring tube makes the temperature distribution of the mold more uniform, reduces thermal stress, and extends the life of the mold; the optimized insulation and cooling system reduces energy consumption, reduces energy consumption in the production process, and improves the environmental performance of the equipment.

[0050] Through the design of the thin slide bar 9 and the thick slide bar 8, the dynamic pressure mold 5 is more stable during movement, which reduces wear and increases the life of the mold; through the design of the cross 6 and the base 7, the installation stability of the mold is enhanced and the mold displacement caused by vibration is reduced; and through the coordinated design of the slide 3 and the foot 10, the disassembly and maintenance of the mold are more convenient, which improves the operating efficiency of the production line and facilitates operation.

[0051] Through the combination of the condenser 61 and the cross 6, the heat dissipation effect of the entire mold is effectively enhanced, ensuring that the mold temperature is controlled within a reasonable range, and assisting in cooling the constant pressure mold 4 to improve production efficiency; the effective cooling system reduces the working time of the mold at high temperature, reduces the damage to the mold caused by thermal stress, and extends the service life of the mold; at the same time, a cold, hot, and cold temperature control field is formed around the mold cavity, making the temperature control of the mold cavity during the cooling process more precise, ensuring the temperature stability of the mold during the casting process, and improving product quality.

[0052] The first core column 12, the top core block 13, the second core column 19, the bottom core block 20 and the short column 56 are designed to be embedded in the mold cavity to serve as a hole structure reserved in the middle of the shell. A preset cavity space is independently reserved inside the shell to facilitate the shell after molding without the need for secondary punching processing, thereby reducing the total amount of subsequent processing of the shell, shortening the cycle of the finished shell being put into use, improving the molding accuracy of the casting, and ensuring the dimensional stability and quality of the throttle housing.

[0053] The design of the long screw 21 and the short screw 43 allows the first core column 12 and the second core column 19 to remain in a fixed installation position in the fixed pressure mold 4 and the dynamic pressure mold 5. It is also convenient for disassembly and maintenance, and can cooperate with the left and right reciprocating operation of the dynamic pressure mold 5 for mold closing operations. There is no need to adjust the position of the core column structure every time, which reduces downtime and improves production efficiency.

[0054] By providing the insertion holes 131 on the top core block 13 and the bottom core block 20, the top core block and the bottom core block are more firmly fixed in the mold cavity, and the auxiliary shell reserves a bolt installation hole structure, while further improving the molding quality of the product.

[0055] Through the coordinated design of the slide 3, the foot seat 10, the thick slide bar 8 and the thin slide bar 9, the dynamic pressure mold 5 is ensured to have better stability during movement, friction and wear are reduced, the sliding movement of the dynamic pressure mold 5 is more stable and smooth, the jamming phenomenon during movement is reduced, and the production efficiency is improved.

[0056] Through the design of the clamping block 51 and the hoop sleeve 52, and the fixation of the semicircular tube 53, the stability of the mold is enhanced, and the shaking and unstable factors during the working process are reduced.

[0057] Through the improvement of the above structure, the pouring system structure is optimized, the uniform flow of metal materials in the mold cavity is guaranteed, the uniformity and consistency of pouring are improved, and the molding accuracy of the product is improved; the optimized design of the pouring system reduces the waste of metal materials, improves production efficiency, and reduces production costs; the uniform pouring flow and stable pressure control reduce the pores and defects on the casting surface, and improve the quality and appearance of the product;

[0058] The design of the short column 56 enables the top core block 13 and the bottom core block 20 to have better stability and precision positioning in the mold cavity of the fixed pressure mold 4 or the dynamic pressure mold 5, thereby ensuring the dimensional accuracy and surface quality of the casting.

[0059] The second embodiment is based on the first embodiment. Figure 6 and Figure 7As shown, the dynamic pressure mold 5 is fixedly connected with a fillet 54 and an annular inlay 55 on one side facing the fixed pressure mold 4, and the fillet 54 is installed on both sides of the axis where the semicircular tube 53 is located, and the annular inlay 55 is fixedly installed around the casting cavity of the dynamic pressure mold 5, the semicircular tube 53 is embedded and installed with the convex tube 14 through the vertical groove 42 and the fillet 54, and the semicircular tube 53 and the convex tube 14 form a complete pipeline, wherein the top of the semicircular tube 53 is fitted on the bottom of the annular tube head 141, and the annular inlay 55 is embedded and installed with the annular groove 41, and the fixed pressure mold 4 is encapsulated with the dynamic pressure mold 5 through the fillet 54 and the vertical groove 42 and the annular inlay 55 and the annular groove 41, and the casting cavities of the two are connected together to form a complete casting cavity for casting a complete automobile throttle housing.

[0060] When in use, the design of the annular groove 41 and the vertical groove 42 effectively prevents the metal liquid from overflowing, reduces material waste, reduces production costs, enhances the structural bonding strength when the fixed pressure mold 4 and the dynamic pressure mold 5 are closed, and ensures the safe die-casting and molding of the metal liquid in the mold cavity.

[0061] The third embodiment is based on the first and second embodiments. Figure 8 and Fig.11 As shown, a sleeve rod member 111 is fixedly installed on the output end of the DD motor 11, and the end of the sleeve rod member 111 away from the DD motor 11 is fixedly connected to a plate body 112, a small hoop ring 113 is fixedly connected to the middle of the plate body 112, and both ends of the plate body 112 away from the small hoop ring 113 are fixedly connected to large hoop rings 114, the small hoop ring 113 is installed in a close fit with the hoop sleeve 52, and the large hoop ring 114 is installed in an inlaid manner with the dynamic pressure mold 5 through the hoop sleeve 52.

[0062] When in use, the DD motor 11 controls the rotation of the sleeve rod 111, making the locking operation of the mold more automated, ensuring the firmness of the mold under high pressure and preventing displacement and deformation; the automatic locking design reduces manual operation, making the operation more convenient and precise, and improving the degree of automation of the production line; the locking structure controlled by the DD motor 11 improves the accuracy of mold positioning, reduces errors in the casting process, and improves product quality.

[0063] Through the design of the clamping block 51 and the hoop sleeve 52, combined with the interlocking locking of the small hoop ring 113 and the large hoop ring 114 between the hoop sleeve 52 at the top of the fixed pressure mold 4 and the dynamic pressure mold 5, it is ensured that the mold can be firmly locked during the casting process, preventing the mold from shifting and improving the casting quality; the design of the clamping block and the hoop sleeve makes the installation and disassembly of the mold more convenient, reduces the downtime of the production line, and improves production efficiency; the interlocking design of the fillet 54 and the vertical groove 42 makes the positioning of the mold more precise, ensures the alignment of the mold cavity, and improves the molding accuracy of the product.

[0064] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A die-casting machine for an automobile throttle housing, comprising a frame frame (1), a hydraulic press (2) being fixedly mounted on the top of the frame frame (1) in a left-right symmetrical manner, and a slide table (3) being mounted on the bottom plate of the frame frame (1) in a front-back symmetrical manner, characterized in that: A fixed pressure mold (4) is installed at the bottom of the hydraulic press (2) and located inside the frame (1), and the number of the fixed pressure molds (4) is two, a dynamic pressure mold (5) is installed between the two fixed pressure molds (4), and the dynamic pressure mold (5) is designed as a left-right symmetrical structure as a whole, and a condenser (61) is installed on the back side of the two fixed pressure molds (4), and thin sliding rods (9) are installed through the top corners of the fixed pressure mold (4) and the dynamic pressure mold (5), and thick sliding rods (8) are installed through the bottom corners of the fixed pressure mold (4) and the dynamic pressure mold (5), and the thick sliding rods (8) and the thin sliding rods (9) are inserted into the frame (1); A convex tube (14) is fixedly connected to the top of the fixed-pressure mold (4) and in the middle of the side close to the dynamic-pressure mold (5); a ring tube head (141) is connected to the top of the convex tube (14); a feed tube (15) is fixedly connected to the surface of the ring tube head (141); an external ring tube (16) is embedded and installed on the inner sides of the fixed-pressure mold (4) and the dynamic-pressure mold (5); an internal ring tube (17) is installed on the inner side of the external ring tube (16); and an internal ring tube (17) is embedded and installed on the inner sides of the fixed-pressure mold (4) and the dynamic-pressure mold (5); the circular ring where the external ring tube (16) is located wraps the circular ring where the internal ring tube (17) is located; and the external ring tube (16) and the internal ring tube (17) are both notched circular ring structures as a whole; and the external ring tube (16) and the internal ring tube (17) are both composed of annular flat tubes with four notches; An input pipe (161) is fixedly connected to one side of the notch on the surface of the external ring tube (16), an output pipe (162) is fixedly connected to the other side of the notch on the surface of the external ring tube (16), an introduction pipe (171) is fixedly connected to the middle of the notch on the surface of the internal ring tube (17), and an output pipe (172) is fixedly connected to a position on the surface of the internal ring tube (17) away from the notch; A group of built-in annular tubes (17) installed inside the dynamic pressure mold (5) are threadedly connected to a shunt tube (18), and the introduction tubes (171) on the two built-in annular tubes (17) are commonly connected to the shunt tube (18); The back surfaces of the two fixed-pressure molds (4) are both installed with a cross (6), and the condenser (61) is fixedly installed on the middle part of the inner side of the cross (6). The bottom of the cross (6) is installed with a base (7), and the base (7) is fixedly installed on the bottom plate of the frame (1). The slide (3) is installed with a foot seat (10), and the foot seat (10) is slidably installed with the frame (1) through the slide (3). The foot seat (10) is assembled with the dynamic pressure mold (5) through a coarse slide bar (8), and the dynamic pressure mold (5) slides on the coarse slide bar (8) and the fine slide bar (9) at the same time through the cooperation of the foot seat (10) and the slide (3); The fixed-pressure mold (4) is fixedly installed with DD motors (11) on both sides close to the thin slide rod (9), and a first core column (12) is installed in the middle of a surface of the fixed-pressure mold (4) facing the dynamic-pressure mold (5). The dynamic-pressure mold (5) and the two fixed-pressure molds (4) are provided with a casting cavity in the middle of the facing surfaces, and the structures installed inside the casting cavities of the two are the same. The top and bottom of the casting cavity of the dynamic-pressure mold (5) are respectively embedded with a top core block (13) and a bottom core block (20), wherein a second core column (19) is embedded in the middle of the casting cavity of the dynamic-pressure mold (5), and the number of the second core columns is two, and a long screw (21) is installed in the middle of the two second core columns (19), and the two second core columns (19) are threadedly installed with the dynamic-pressure mold (5) through the long screw (21); The output end of the hydraulic press (2) is connected to a pressure rod plug (201) via a coupling, and the pressure rod plug (201) is fitted with a ring tube head (141). The fixed pressure mold (4) is provided with a ring groove (41) on a side facing the dynamic pressure mold (5), and the ring groove (41) is provided in a ring shape around the casting cavity. A vertical groove (42) is provided at a connection portion between the convex tube (14) and the fixed pressure mold (4), and the vertical groove (42) is provided on both sides of the axis where the ring tube head (141) is located. A short screw (43) is installed in the middle of a side of the fixed pressure mold (4) away from the dynamic pressure mold (5), and the first core column (12) is threadedly installed with the fixed pressure mold (4) via the short screw (43), and the first core column (12) is inserted and fitted with the second core column (19) via a long screw (21); The fixed-pressure mold (4) and the dynamic-pressure mold (5) are fixedly connected to blocks (51) at their bottom corners, and the blocks (51) are sleeved on the thick slide bar (8); the fixed-pressure mold (4) and the dynamic-pressure mold (5) are fixedly connected to hoop sleeves (52) at their top corners, and the hoop sleeves (52) are sleeved on the thin slide bar (9); the top of the dynamic-pressure mold (5) is fixedly connected to a semicircular tube (53), and the semicircular tube (53) is installed in the middle of the side close to the fixed-pressure mold (4); The dynamic pressure mold (5) is fixedly connected with a fillet (54) and an annular inlay (55) on one side facing the fixed pressure mold (4), and the fillet (54) is installed on both sides of the axis of the semicircular tube (53), and the annular inlay (55) is fixedly installed around the casting cavity of the dynamic pressure mold (5), the semicircular tube (53) is fitted with the convex tube (14) through the vertical groove (42) and the fillet (54), and the semicircular tube (53) and the convex tube (14) form a complete pipeline, wherein the top of the semicircular tube (53) is fitted on the bottom of the annular tube head (141), the annular inlay (55) is fitted with the annular groove (41), and the fixed pressure mold (4) is encapsulated with the dynamic pressure mold (5) through the fillet (54) and the vertical groove (42) and the annular inlay (55) and the annular groove (41).

2. The die-casting machine for an automobile throttle housing according to claim 1, characterized in that: A short column (56) is fixedly installed in the casting cavity of the dynamic pressure mold (5), and the short column (56) is installed in the casting cavity in the form of an equilateral triangle. A plug hole (131) is provided in the middle of one side of the top core block (13) and the bottom core block (20) close to the short column (56). The top core block (13) is inserted and positioned with the dynamic pressure mold (5) through the cooperation of the short column (56) and the plug hole (131).

3. The die-casting machine for automobile throttle housing according to claim 2, characterized in that: A slot (71) is provided at a top corner of the base (7), the cross (6) is mounted on the base (7) through the slot (71), and the cross (6) is fixed to the base (7) through a coarse slide bar (8), and nuts (81) are threadedly mounted on the surfaces of the coarse slide bar (8) and the thin slide bar (9), the fixed pressure mold (4) is positioned and mounted on the coarse slide bar (8) through the block (51) and the nut (81), the fixed pressure mold (4) is positioned and mounted on the thin slide bar (9) through the hoop (52) and the nut (81), and the fixed pressure mold (4) is positioned and mounted on the frame plate frame (1) through the coarse slide bar (8) and the thin slide bar (9).

4. The die-casting machine for automobile throttle housing according to claim 3, characterized in that: A sleeve rod member (111) is fixedly mounted on the output end of the DD motor (11); an end of the sleeve rod member (111) away from the DD motor (11) is fixedly connected to a plate body (112); a small hoop ring (113) is fixedly connected to the middle of the plate body (112); and both ends of the plate body (112) away from the small hoop ring (113) are fixedly connected to large hoop rings (114); the small hoop ring (113) is fitted with the hoop sleeve (52), and the large hoop ring (114) is fitted with the dynamic pressure mold (5) through the hoop sleeve (52).

Images