Die-casting forming equipment for automobile parts

Abstract

The invention discloses die-casting forming equipment for automobile parts, and relates to the technical field of automobile part production, the die-casting forming equipment comprises a die-casting mechanism, the die-casting mechanism comprises a bottom plate, a lower die, an upper die, a cooling channel, a through hole and a lifting piece, the lower die is fixedly connected to the top of the bottom plate, the upper die is arranged at the top of the lower die, the cooling channel is formed in the lower die, and the through hole is formed in the lifting piece. The through hole is formed in the surface of the cooling channel, and the lifting piece is installed on the surface of the bottom plate and the surface of the upper mold. High-temperature liquid metal in the mold cavity can be better cooled and formed through the cooling mechanism and the adjusting mechanism, meanwhile, when the lower mold is preheated, low-temperature cooling liquid in the lower mold is rapidly discharged, internal incrustation is cleaned, and when preheating operation is conducted on the lower mold after a workpiece is formed and demolded, the work efficiency is greatly improved. Water in the water circulation pipeline can be emptied in time, the influence on the preheating effect is reduced, no cooling water exists in the circulation pipeline in the preheating state at the moment, and certain scale cannot be formed in the circulation pipeline under long-time use.

Description

Technical Field

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

[0002] With the rapid development of the global automobile industry, the continuous innovation and progress of automobile parts manufacturing technology have put forward higher requirements for improving production efficiency, reducing production costs, ensuring product quality and enhancing product competitiveness. As an important metal forming method, die-casting technology is increasingly used in the field of automobile parts manufacturing. High-temperature liquid metal is pressed into the mold cavity under high pressure. The structure of the mold cavity is the same as that of the product to be formed. After the liquid metal in the mold cavity is cooled and solidified, it is taken out to obtain the workpiece to be formed.

[0003] However, in practical applications, there are still some unresolved problems. The following are some common problems of die-casting equipment for automotive parts: In the prior art, a water circulation heat dissipation mechanism is generally set in the lower mold to cool the mold, and then cool the molded workpiece to facilitate the demolding operation by the staff. In order to ensure that the molten metal has good fluidity when injected into the mold cavity, it is necessary to preheat the lower mold after the workpiece is molded and demolded. At this time, the water in the water circulation pipe will not be discharged, or will not be emptied in time, which will not only affect the preheating effect, but also increase the working time. At the same time, the preheating heat will heat the cooling water in the circulation pipe. After long-term use, a certain amount of scale will form inside the circulation pipe, which will greatly affect the subsequent heat dissipation operation. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] The present invention is proposed in view of the above-mentioned and / or existing problems in the conventional die-casting equipment for automobile parts.

[0006] Therefore, the problem to be solved by the present invention is that the lower mold needs to be preheated after the workpiece is formed and demolded. At this time, the water in the water circulation pipe will not be discharged, or will not be emptied in time, affecting the preheating effect. At the same time, the preheating heat will heat the cooling water in the circulation pipe. Over a long period of time, a certain amount of scale will form inside, which will greatly affect the subsequent heat dissipation operation.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a die-casting molding equipment for automobile parts, comprising a die-casting mechanism, including a bottom plate, a lower mold, an upper mold, a cooling channel, a through hole and a lifting member, wherein the lower mold is fixedly connected to the top of the bottom plate, the upper mold is arranged on the top of the lower mold, the cooling channel is opened in the lower mold, the through hole is opened on the surface of the cooling channel, and the lifting member is installed on the bottom plate and the surface of the upper mold; the cooling mechanism is installed on the bottom plate and the surface of the lower mold, and includes a liquid tank, a bend pipe, a three-way valve, a delivery pump, a discharge A liquid pipe and a liquid inlet pipe, the liquid tank is fixedly connected to the bottom of the base plate, the delivery pump is installed on the top of the liquid tank, one end of the bent pipe is connected to the liquid tank, the other end of the bent pipe is connected to the three-way valve, one end of the three-way valve is connected to the delivery pump, both ends of the discharge pipe are respectively connected to the lower mold and the liquid tank, and both ends of the liquid inlet pipe are respectively connected to the lower mold and the delivery pump; and an adjusting mechanism, installed on the surface of the three-way valve and the discharge pipe, including a rotating part and an opening and closing part, the rotating part is arranged on the surface of the three-way valve and the lower mold, and the opening and closing part is arranged on the surface of the base plate and the discharge pipe.

[0008] As a preferred solution of the die-casting molding equipment for automotive parts described in the present invention, the lifting component includes a vertical rod, a support plate, a hydraulic cylinder and a guide rod, the vertical rod is fixedly connected to the top of the base plate, the support plate is fixedly connected to the upper end of the vertical rod, the hydraulic cylinder is fixedly connected to the surface of the support plate, the output shaft of the hydraulic cylinder passes through the support plate and is fixedly connected to the top of the upper mold, the guide rod is slidably connected to the surface of the support plate, and the lower end of the guide rod is fixedly connected to the top of the upper mold.

[0009] As a preferred solution of the die-casting molding equipment for automobile parts of the present invention, a positioning rod is fixedly connected to the bottom of the upper mold, a positioning groove cooperating with the positioning rod is opened on the top of the lower mold, and the positioning rod is inserted into the positioning groove.

[0010] As a preferred solution of the die-casting molding equipment for automobile parts of the present invention, one end of the three-way valve is connected to an air hood, and a filter is fixedly connected inside the air hood.

[0011] As a preferred solution of the die-casting molding equipment for automotive parts described in the present invention, the rotating part includes a rotating rod, a sleeve, a short column and a fixed rod, the rotating rod is rotatably connected to the bottom of the support plate, the sleeve is sleeved on the surface of the rotating rod, the short column is fixedly connected to the inner wall of the sleeve, the two ends of the fixed rod are respectively fixedly connected to the upper mold and the surface of the sleeve, the surface of the rotating rod is provided with a guide groove that cooperates with the short column, the short column is slidably connected in the guide groove, and the lower end of the rotating rod is fixedly connected to the valve stem of the three-way valve.

[0012] As a preferred embodiment of the die-casting molding equipment for automotive parts described in the present invention, the opening and closing parts include a rotating part, a scraper strip, a connecting plate, a driving part and a rebound part, the rotating part is installed on the surface of the drain pipe, the scraper strip is arranged on the surface of the rotating part, the connecting plate is fixedly connected to the surface of the upper mold, the driving part is installed on the surface of the connecting plate, and the rebound part is arranged on the surface of the drain pipe and the rotating part.

[0013] As a preferred solution of the die-casting molding equipment for automobile parts described in the present invention, wherein: the rotating part includes a fixed valve break, a cross bar, a movable valve break, a round block, a gear and a movable plate, the fixed valve break is fixedly connected to the inner wall of the drain pipe, the cross bar is rotatably connected to the fixed valve break and the surface of the drain pipe, the movable valve break is sleeved on the surface of the cross bar, the round block and the gear are fixedly connected to one end of the cross bar, the scraper is fixedly connected to the other end of the cross bar, the movable plate is rotatably connected to the gear and the surface of the round block, and the surfaces of the fixed valve break and the movable valve break are both provided with connecting holes.

[0014] As a preferred solution of the die-casting molding equipment for automotive parts described in the present invention, the driving member includes a vertical plate, a first tooth, a second tooth and a third tooth, the vertical plate is fixedly connected to the end of the connecting plate, and the first tooth, the second tooth and the third tooth are all fixedly connected to the surface of the vertical plate.

[0015] As a preferred solution of the die-casting molding equipment for automobile parts described in the present invention, a T-block is fixedly connected to the surface of the bottom plate, a T-slot matching the T-block is opened on the surface of the vertical plate, and the end of the T-block extends into the T-slot and is slidably connected thereto.

[0016] As a preferred solution of the die-casting molding equipment for automotive parts described in the present invention, the rebound part includes a circular frame and a torsion spring, the circular frame is fixedly connected to the surface of the drain pipe, the circular frame and the torsion spring are both sleeved on the surface of the cross bar, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the circular frame and the surface of the cross bar.

[0017] The beneficial effects of the present invention are as follows: the present invention can realize die-casting of automobile parts through the die-casting mechanism, press high-temperature liquid metal into the mold cavity by high pressure, and take out the liquid metal in the mold cavity after cooling and solidifying, which is the workpiece to be formed. The high-temperature liquid metal in the mold cavity can be better cooled and formed through the cooling mechanism and the adjustment mechanism. At the same time, when the lower mold is preheated, the low-temperature coolant in it is quickly discharged, and the internal scale is cleaned. When the lower mold is preheated after the workpiece is formed and demolded, the water in the water circulation pipe will be emptied in time to reduce its influence on the preheating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 This is a three-dimensional structural diagram of die-casting equipment for automotive parts.

[0019] Figure 2 This is a side view of the stereoscopic structure of a die-casting molding equipment for automotive parts.

[0020] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of a die-casting molding equipment for automotive parts.

[0021] Figure 4 Die casting equipment for automotive parts Figure 3 A is an enlarged structural diagram.

[0022] Figure 5 This is a three-dimensional cross-sectional view of the lower mold of a die-casting molding equipment for automotive parts.

[0023] Figure 6 This is a three-dimensional cross-sectional view of the sleeve structure of a die-casting molding equipment for automotive parts.

[0024] Figure 7 Die casting equipment for automotive parts Figure 6 A magnified structural diagram of B.

[0025] Figure 8 This is a three-dimensional structural diagram of the upper and lower molds of a die-casting molding equipment for automotive parts.

[0026] Fig. 9 This is a three-dimensional structural diagram of the circular frame and torsion spring separation of the die-casting molding equipment for automotive parts.

[0027] Fig.10 This is a three-dimensional structural diagram of the vertical plate and the third tooth of the die-casting molding equipment for automotive parts.

[0028] In the figure: 100, die casting mechanism; 101, bottom plate; 102, lower die; 103, upper die; 104, cooling channel; 105, through hole; 106, lifting member; 107, positioning rod; 108, positioning groove; 200, cooling mechanism; 201, liquid tank; 202, elbow; 203, three-way valve; 204, delivery pump; 205, discharge pipe; 206, liquid inlet pipe; 207, air hood; 208, filter screen; 300, adjustment mechanism; 301, rotating member; 302, opening and closing member; 106a, vertical rod; 106b, support plate; 106c, hydraulic cylinder; 106d, guide rod; 301a, rotating rod; 301b, sleeve; 301c, short Column; 301d, fixed rod; 301e, guide groove; 302a, rotating part; 302b, scraper strip; 302c, connecting plate; 302d, driving part; 302e, rebound part; 302a-1, fixed valve bend; 302a-2, cross bar; 302a-3, movable valve bend; 302a-4, round block; 302a-5, gear; 302a-6, movable plate; 302a-7, connecting hole; 302d-1, vertical plate; 302d-2, first tooth; 302d-3, second tooth; 302d-4, third tooth; 302d-5, T-block; 302d-6, T-slot; 302e-1, round frame; 302e-2, torsion spring. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0032] Reference Figure 1 and Figure 2, which is the first embodiment of the present invention, and provides a die-casting molding equipment for automobile parts. The die-casting molding equipment for automobile parts includes a die-casting mechanism 100, a cooling mechanism 200 and an adjusting mechanism 300. The die-casting molding of automobile parts can be realized by the die-casting mechanism 100. When the lower mold 102 is preheated after the workpiece is formed and demolded, the water in the water circulation pipeline will be emptied in time to avoid the cooling water affecting the preheating effect. At the same time, it can avoid the formation of more scale in the cooling water pipe during long-term use, which affects the heat dissipation efficiency.

[0033] Specifically, the die-casting mechanism 100 includes a base plate 101, a lower mold 102, an upper mold 103, a cooling channel 104, a through hole 105 and a lifting member 106. The lower mold 102 is fixedly connected to the top of the base plate 101, the upper mold 103 is arranged on the top of the lower mold 102, the cooling channel 104 is opened in the lower mold 102, the through hole 105 is opened on the surface of the cooling channel 104, and the lifting member 106 is installed on the surface of the base plate 101 and the upper mold 103.

[0034] The lower mold 102 is fixedly connected to the top of the base plate 101 by bolts for easy disassembly and assembly. The cooling channel 104 is serpentine and is separated from the middle to divide the entering coolant into different parts. The coolant is filled faster when flowing into the cooling channel 104 through the through hole 105, and the coolant in the cooling channel 104 is quickly discharged during ventilation. There is no need for the gas to flow through the entire cooling channel 104 from beginning to end, which is convenient for subsequent preheating of the lower mold 102 after demolding. A heater is installed in the lower mold 102, which is a prior art and will not be elaborated here. The lifting and lowering of the upper mold 103 is achieved by the lifting member 106.

[0035] Specifically, the cooling mechanism 200 is installed on the surface of the base plate 101 and the lower mold 102, and includes a liquid tank 201, a curved pipe 202, a three-way valve 203, a delivery pump 204, a discharge pipe 205 and a liquid inlet pipe 206. The liquid tank 201 is fixedly connected to the bottom of the base plate 101, the delivery pump 204 is installed on the top of the liquid tank 201, one end of the curved pipe 202 is connected to the liquid tank 201, and the other end of the curved pipe 202 is connected to the three-way valve 203, one end of the three-way valve 203 is connected to the delivery pump 204, both ends of the discharge pipe 205 are connected to the lower mold 102 and the liquid tank 201 respectively, and both ends of the liquid inlet pipe 206 are connected to the lower mold 102 and the delivery pump 204 respectively.

[0036] The surface of the liquid tank 201 is installed with complete equipment for cooling the coolant and is provided with a temperature detector, which are all existing technologies and are not elaborated here. The liquid tank 201 is connected to the three-way valve 203 through the curved pipe 202. The delivery pump 204 is a gas-liquid dual-purpose pump, which can be used to transport liquid and gas. The cooling channel 104 in the lower mold 102 is connected to the delivery pump 204 through the liquid inlet pipe 206 to realize liquid delivery to the cooling channel 104, or gas delivery to the cooling channel 104.

[0037] The coolant entering the cooling channel 104 is discharged into the liquid tank 201 through the drain pipe 205. When the lower mold 102 is preheated, the coolant inside is discharged by ventilation to prevent the coolant from absorbing a large amount of heat during preheating and affecting the preheating effect and efficiency of the lower mold 102. A filter frame is provided in the liquid tank 201 to filter and collect the refluxed coolant and scraped scale.

[0038] Specifically, the adjustment mechanism 300 is installed on the surface of the three-way valve 203 and the drain pipe 205, and includes a rotating part 301 and an opening and closing part 302. The rotating part 301 is arranged on the surface of the three-way valve 203 and the lower mold 102, and the opening and closing part 302 is arranged on the bottom plate 101 and the drain pipe 205.

[0039] During the rising and falling process of the upper mold 103, the corresponding position of the three-way valve 203 is opened and closed by the rotating part 301, and then coolant or gas is selectively introduced into the cooling channel 104. The opening and closing of the corresponding drain pipe 205 is controlled by the opening and closing part 302, and the two drain pipes 205 at the end of the lower mold 102 are always in a connected and open state.

[0040] During the rising and falling process of the upper mold 103 and the rotation of the rotating part 301, the coolant is controlled to circulate in the cooling channel 104 to cool the lower mold 102, thereby cooling the molten metal injected into the mold cavity, or the coolant is controlled to be discharged from the cooling channel 104 to avoid the coolant absorbing a large amount of heat during preheating, affecting the preheating effect and efficiency of the lower mold 102, thereby improving the fluidity of the molten metal in the mold cavity and allowing it to better fill the entire mold cavity. Example 2

[0041] Reference Figure 2 to Figure 7 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0042] Specifically, the lifting member 106 includes a vertical rod 106a, a support plate 106b, a hydraulic cylinder 106c and a guide rod 106d. The vertical rod 106a is fixedly connected to the top of the base plate 101, the support plate 106b is fixedly connected to the upper end of the vertical rod 106a, the hydraulic cylinder 106c is fixedly connected to the surface of the support plate 106b, the output shaft of the hydraulic cylinder 106c passes through the support plate 106b and is fixedly connected to the top of the upper mold 103, the guide rod 106d is slidably connected to the surface of the support plate 106b, and the lower end of the guide rod 106d is fixedly connected to the top of the upper mold 103.

[0043] There are four vertical rods 106a, which are respectively fixedly connected to the top of the base plate 101 and the four corners of the bottom of the support plate 106b, so as to support the support plate 106b and control the extension and retraction of the hydraulic cylinder 106c to realize the lowering and rising of the upper mold 103, and then realize the closing and separation with the lower mold 102. There are four guide rods 106d, which all pass through the support plate 106b and are fixedly connected to the top of the upper mold 103. The upper mold 103 is guided and limited by the guide rods 106d, so that it can be better closed with the lower mold 102.

[0044] A positioning rod 107 is fixedly connected to the bottom of the upper mold 103 , and a positioning groove 108 matching with the positioning rod 107 is formed on the top of the lower mold 102 , and the positioning rod 107 is inserted into the positioning groove 108 .

[0045] There are four positioning rods 107, which are fixedly connected to the four corners of the bottom of the upper mold 103. There are four positioning grooves 108, which are respectively opened at the four corners of the top of the lower mold 102. Through the positioning rods 107 and the positioning grooves 108, the upper mold 103 can be accurately molded with the lower mold 102 when moving downward, thereby improving the quality of subsequent metal hydraulic casting.

[0046] One end of the three-way valve 203 is connected to an air hood 207 , and a filter screen 208 is fixedly connected inside the air hood 207 .

[0047] When the delivery pump 204 delivers gas, the gas hood 207 can better inhale the gas. At this time, the gas hood 207 is connected to the delivery pump 204 through the three-way valve 203, and the gas is delivered to the cooling channel 104 through the liquid inlet pipe 206, and then the remaining coolant inside is discharged through the drain pipe 205. The gas entering the gas hood 207 is filtered through the filter net 208, which effectively prevents particulate impurities from entering the delivery pump 204 and the cooling channel 104 through it.

[0048] The rotating member 301 includes a rotating rod 301a, a sleeve 301b, a short column 301c and a fixed rod 301d. The rotating rod 301a is rotatably connected to the bottom of the support plate 106b. The sleeve 301b is sleeved on the surface of the rotating rod 301a. The short column 301c is fixedly connected to the inner wall of the sleeve 301b. The two ends of the fixed rod 301d are respectively fixedly connected to the upper mold 103 and the surface of the sleeve 301b. A guide groove 301e is opened on the surface of the rotating rod 301a to cooperate with the short column 301c. The short column 301c is slidably connected in the guide groove 301e. The lower end of the rotating rod 301a is fixedly connected to the valve stem of the three-way valve 203.

[0049] The upper end of the rotating rod 301a is rotatably connected to the bottom of the support plate 106b through a bearing, the inner surface of the sleeve 301b is slidably connected to the outer surface of the rotating rod 301a, and the upper mold 103 and the sleeve 301b are indirectly connected through the fixed rod 301d, so that when the upper mold 103 rises or falls, the sleeve 301b and the short column 301c therein are driven to rise and fall together.

[0050] The guide groove 301e is divided into three parts, the first part is the upper vertical groove, the second part is the arc groove, and the third part is the lower vertical groove. The short column 301c moves up or down in the arc groove to make the rotating rod 301a rotate forward or reverse, thereby controlling the three-way valve 203 to realize whether the delivery pump 204 is connected to the air hood 207 or the bent pipe 202. When the short column 301c moves in the upper vertical groove or the lower vertical groove, the rotating rod 301a will not rotate. Example 3

[0051] Reference Figures 3 to 10 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0052] Specifically, the opening and closing member 302 includes a rotating member 302a, a scraper strip 302b, a connecting plate 302c, a driving member 302d and a rebound member 302e. The rotating member 302a is installed on the surface of the drain pipe 205, the scraper strip 302b is arranged on the surface of the rotating member 302a, the connecting plate 302c is fixedly connected to the surface of the upper mold 103, the driving member 302d is installed on the surface of the connecting plate 302c, and the rebound member 302e is arranged on the surface of the drain pipe 205 and the rotating member 302a.

[0053] The opening and closing of the two drain pipes 205 at the end are realized by the rotating part 302a. The number of scraper bars 302b is several and is set according to the design of the cooling channel 104 in actual production. The inner wall of the cooling channel 104 can be cleaned by the rotation of the scraper bars 302b, which effectively prevents scale from adhering to the cooling channel 104 and improves the cooling efficiency and effect of the coolant on the lower mold 102.

[0054] The driving member 302d and the upper mold 103 are indirectly connected through the connecting plate 302c, so that the components on the driving member 302d can be moved conveniently when the upper mold 103 moves. The driving member 302d can drive the rotating member 302a, so that the corresponding discharge pipe 205 can be opened and closed, and the rebound member 302e can provide the rotating member 302a with the power to reset after rotation.

[0055] The rotating member 302a includes a fixed valve bend 302a-1, a cross bar 302a-2, a movable valve bend 302a-3, a round block 302a-4, a gear 302a-5 and a movable plate 302a-6. The fixed valve bend 302a-1 is fixedly connected to the inner wall of the discharge pipe 205. The cross bar 302a-2 is rotatably connected to the fixed valve bend 302a-1 and the surface of the discharge pipe 205. The movable valve bend 302a-3 is sleeved on the surface of the cross bar 302a-2. The round block 302a-4 and the gear 302a-5 are fixedly connected to one end of the cross bar 302a-2. The scraper 302b is fixedly connected to the other end of the cross bar 302a-2. The movable plate 302a-6 is rotatably connected to the gear 302a-5 and the surface of the round block 302a-4. The surfaces of the fixed valve bend 302a-1 and the movable valve bend 302a-3 are both provided with connecting holes 302a-7.

[0056] The cross bar 302a-2 passes through the fixed valve bend 302a-1 and is rotatably connected thereto through a sealed bearing. A seal is provided between the fixed valve bend 302a-1 and the movable valve bend 302a-3 to effectively prevent liquid from being discharged from the gap therebetween. A gear 302a-5 and a plurality of round blocks 302a-4 are connected through a movable plate 302a-6. The rotation of a gear 302a-5 drives the rotation of the plurality of round blocks 302a-4, thereby causing the corresponding cross bar 302a-2, the movable valve bend 302a-3 and the scraper 302b to rotate.

[0057] Through the setting of the connecting hole 302a-7, when the movable valve 302a-3 rotates 180 degrees, the connecting hole 302a-7 thereon is directly opposite to the connecting hole 302a-7 on the fixed valve 302a-1, thereby realizing the opening of the drain pipe 205. At this time, the three-way valve 203 is connected with the gas hood 207 and the delivery pump 204. The delivery pump 204 is operated to deliver the gas into the cooling channel 104, and the coolant inside the cooling channel 104 is discharged.

[0058] The driving member 302d includes a vertical plate 302d-1, a first tooth 302d-2, a second tooth 302d-3 and a third tooth 302d-4. The vertical plate 302d-1 is fixedly connected to the end of the connecting plate 302c, and the first tooth 302d-2, the second tooth 302d-3 and the third tooth 302d-4 are all fixedly connected to the surface of the vertical plate 302d-1.

[0059] The vertical plate 302d-1 provides a position for the installation of the first tooth 302d-2, the second tooth 302d-3 and the third tooth 302d-4. The rotating member 301 is divided into two large groups, which respectively control the opening and closing of the corresponding discharge pipe 205. At this time, the first tooth 302d-2 meshes and moves with the gear 302a-5 in one of the groups, thereby controlling the corresponding opening. Similarly, the second tooth 302d-3 meshes and moves with the gear 302a-5 in the other group, thereby controlling the corresponding opening. Then the third tooth 302d-4 meshes and moves with the two gears 302a-5 in the two groups, thereby controlling the simultaneous opening of the two groups.

[0060] A T-shaped block 302d-5 is fixedly connected to the surface of the bottom plate 101, and a T-shaped slot 302d-6 matching with the T-shaped block 302d-5 is opened on the surface of the vertical plate 302d-1. The end of the T-shaped block 302d-5 extends into the T-shaped slot 302d-6 and is slidably connected thereto.

[0061] The vertical plate 302d-1 is guided and limited by the T-shaped block 302d-5 and the T-shaped slot 302d-6, so that it is more stable when moving.

[0062] The resilient member 302e includes a circular frame 302e-1 and a torsion spring 302e-2. The circular frame 302e-1 is fixedly connected to the surface of the discharge pipe 205. The circular frame 302e-1 and the torsion spring 302e-2 are both sleeved on the surface of the cross bar 302a-2. The two ends of the torsion spring 302e-2 are respectively fixedly connected to the inner wall of the circular frame 302e-1 and the surface of the cross bar 302a-2.

[0063] The torsion spring 302e-2 is used to provide the rotating cross bar 302a-2 with the power to reset. After the first teeth 302d-2, the second teeth 302d-3 and the third teeth 302d-4 engage and move with the gear 302a-5, the cross bar 302a-2, the movable valve bend 302a-3 and the scraper 302b are rotated 180 degrees. When the first teeth 302d-2, the second teeth 302d-3 and the third teeth 302d-4 are disengaged from the gear 302a-5, the cross bar 302a-2, the movable valve bend 302a-3, the round block 302a-4, the gear 302a-5 and the scraper 302b are reset under the action of their rebound torque.

[0064] When in use, the present invention has two working states. In the first working state, when the molten metal is injected into the mold cavity, the coolant is discharged and circulated at two ends in the lower mold 102, and the lower mold 102 is evenly cooled, thereby better cooling and molding the die-cast workpiece, and controlling the operation of the delivery pump 204. At this time, the three-way valve 203 is connected with the elbow 202 and the delivery pump 204. The delivery pump 204 delivers the coolant in the liquid tank 201 to the lower mold 102 through the elbow 202 and the liquid inlet pipe 206, and then separates the two ends through the cooling channel 104, flows in the corresponding cooling channel 104 position, and then is discharged from the two discharge pipes 205 at the end.

[0065] At this time, the two groups of corresponding drain pipes 205 are in a closed state, and the discharged coolant flows back to the liquid tank 201 for recycling. By dividing the lower mold 102 into two parts and cooling them simultaneously, the temperature distribution is made more uniform, thereby improving the cooling effect and quality of the molten metal injected into the mold cavity.

[0066] The second working state is that during the cooling molding demolding process, the coolant in the cooling channel 104 can be emptied, which effectively avoids the coolant absorbing a large amount of heat when preheating the lower mold 102, resulting in poor preheating effect of the lower mold 102, and avoids the lower mold 102 encountering a lower temperature when injecting molten metal. Rapid cooling and agglomeration, improves the fluidity of the molten metal in the mold cavity, and allows it to better fill the entire mold cavity. At the same time, there is no cooling water in the circulation pipe in the preheating state. Under long-term use, a certain amount of scale will not be formed inside the circulation pipe.

[0067] After cooling and forming, the hydraulic cylinder 106c is controlled to retract to move the upper mold 103, the guide rod 106d, the connecting plate 302c and the fixed rod 301d upward. The upward movement of the fixed rod 301d drives the sleeve 301b and the short column 301c to move upward. The short column 301c first moves in the lower vertical groove, and then transitions to move in the arc groove, so that the rotating rod 301a rotates 90 degrees, thereby connecting the three-way valve 203 and the air hood 207 with the conveying pump 204. The short column 301c then enters the upper vertical groove, so that the rotating rod 301a no longer rotates.

[0068] The movement of the connecting plate 302c drives the vertical plate 302d-1, the first tooth 302d-2, the second tooth 302d-3 and the third tooth 302d-4 to move upward. The first tooth 302d-2 first engages and moves with one of the gears 302a-5, causing the gear 302a-5 to rotate, thereby causing the round block 302a-4, the cross bar 302a-2, the movable valve 302a-3 and the scraper 302b in a large group to rotate, and the torsion spring 302e-2 to twist, thereby opening the corresponding drain pipe 205. The rotation of the scraper 302b cleans the inner wall of the cooling channel 104.

[0069] As the first tooth 302d-2 moves upward and disengages from the gear 302a-5, the corresponding round block 302a-4, gear 302a-5, cross bar 302a-2, movable valve 302a-3 and scraper 302b are reset under the action of the rebound of the torsion spring 302e-2, and then the second tooth 302d-3 moves upward and engages with the corresponding gear 302a-5 to open the corresponding drain pipe 205. By switching between the two major groups, when the delivery pump 204 delivers the gas to the cooling channel 104 through the gas hood 207 and the liquid inlet pipe 206, the gas pressure is guaranteed to better discharge the coolant in the cooling channel 104.

[0070] When the second tooth 302d-3 moves up and disengages from the gear 302a-5, the third tooth 302d-4 moves up and engages with the two gears 302a-5, so that they are opened at the same time, and the remaining coolant that has not been discharged is ventilated and discharged again, and then the heater in the lower mold 102 is started to preheat it, thereby improving the efficiency and effect of preheating, and then the extension of the hydraulic cylinder 106c is controlled to move the upper mold 103 downward, so that the corresponding structure is reset, and then the next die-casting of automotive parts is carried out.

[0071] In summary, the corresponding opening position of the three-way valve 203 is controlled by the rotating member 301, and then the rotation of the rotating member 302a and the scraper 302b is driven by the driving member 302d to realize the opening of the drain pipe 205 and the cleaning of the inner wall of the cooling channel 104. When the lower mold 102 is preheated, the low-temperature coolant in it is quickly drained and the internal scale is cleaned. Compared with the prior art, when the lower mold 102 is preheated after the workpiece is formed and demolded, the water in the water circulation pipe will be drained in time, reducing its influence on the preheating effect.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A die-casting equipment for automobile parts, characterized in that: include, A die-casting mechanism (100), comprising a base plate (101), a lower mold (102), an upper mold (103), a cooling channel (104), a through hole (105) and a lifting member (106), wherein the lower mold (102) is fixedly connected to the top of the base plate (101), the upper mold (103) is arranged on the top of the lower mold (102), the cooling channel (104) is opened in the lower mold (102), the through hole (105) is opened on the surface of the cooling channel (104), and the lifting member (106) is installed on the surfaces of the base plate (101) and the upper mold (103); A cooling mechanism (200) is installed on the surface of the bottom plate (101) and the lower mold (102), comprising a liquid tank (201), a curved pipe (202), a three-way valve (203), a delivery pump (204), a liquid discharge pipe (205) and a liquid inlet pipe (206), wherein the liquid tank (201) is fixedly connected to the bottom of the bottom plate (101), the delivery pump (204) is installed on the top of the liquid tank (201), one end of the curved pipe (202) is connected to the liquid tank (201), the other end of the curved pipe (202) is connected to the three-way valve (203), one end of the three-way valve (203) is connected to the delivery pump (204), two ends of the liquid discharge pipe (205) are respectively connected to the lower mold (102) and the liquid tank (201), and two ends of the liquid inlet pipe (206) are respectively connected to the lower mold (102) and the delivery pump (204); and, The regulating mechanism (300) is installed on the surface of the three-way valve (203) and the liquid discharge pipe (205), and comprises a rotating member (301) and an opening and closing member (302); the rotating member (301) is arranged on the surface of the three-way valve (203) and the lower mold (102), and the opening and closing member (302) is arranged on the surface of the bottom plate (101) and the liquid discharge pipe (205).

2. The die-casting equipment for automobile parts according to claim 1, characterized in that: The lifting member (106) comprises a vertical rod (106a), a support plate (106b), a hydraulic cylinder (106c) and a guide rod (106d), wherein the vertical rod (106a) is fixedly connected to the top of the bottom plate (101), the support plate (106b) is fixedly connected to the upper end of the vertical rod (106a), the hydraulic cylinder (106c) is fixedly connected to the surface of the support plate (106b), the output shaft of the hydraulic cylinder (106c) passes through the support plate (106b) and is fixedly connected to the top of the upper mold (103), the guide rod (106d) is slidably connected to the surface of the support plate (106b), and the lower end of the guide rod (106d) is fixedly connected to the top of the upper mold (103).

3. The die-casting equipment for automobile parts according to claim 1, characterized in that: A positioning rod (107) is fixedly connected to the bottom of the upper mold (103), and a positioning groove (108) cooperating with the positioning rod (107) is formed on the top of the lower mold (102), and the positioning rod (107) is inserted into the positioning groove (108).

4. The die-casting equipment for automobile parts according to claim 1, characterized in that: One end of the three-way valve (203) is connected to an air hood (207), and a filter screen (208) is fixedly connected inside the air hood (207).

5. The die-casting equipment for automobile parts according to claim 2, characterized in that: The rotating member (301) comprises a rotating rod (301a), a sleeve (301b), a short column (301c) and a fixed rod (301d); the rotating rod (301a) is rotatably connected to the bottom of the support plate (106b); the sleeve (301b) is sleeved on the surface of the rotating rod (301a); the short column (301c) is fixedly connected to the inner wall of the sleeve (301b); two ends of the fixed rod (301d) are respectively fixedly connected to the upper mold (103) and the surface of the sleeve (301b); a guide groove (301e) matching the short column (301c) is provided on the surface of the rotating rod (301a); the short column (301c) is slidably connected in the guide groove (301e); and the lower end of the rotating rod (301a) is fixedly connected to the valve stem of the three-way valve (203).

6. The die-casting equipment for automobile parts according to claim 1, characterized in that: The opening and closing member (302) comprises a rotating member (302a), a scraping strip (302b), a connecting plate (302c), a driving member (302d) and a resilient member (302e); the rotating member (302a) is mounted on the surface of a liquid discharge pipe (205); the scraping strip (302b) is arranged on the surface of the rotating member (302a); the connecting plate (302c) is fixedly connected to the surface of an upper mould (103); the driving member (302d) is mounted on the surface of the connecting plate (302c); and the resilient member (302e) is arranged on the surfaces of the liquid discharge pipe (205) and the rotating member (302a).

7. The die-casting equipment for automobile parts according to claim 6, characterized in that: The rotating member (302a) comprises a fixed valve block (302a-1), a cross bar (302a-2), a movable valve block (302a-3), a round block (302a-4), a gear (302a-5) and a movable plate (302a-6); the fixed valve block (302a-1) is fixedly connected to the inner wall of the liquid discharge pipe (205); the cross bar (302a-2) is rotatably connected to the fixed valve block (302a-1) and the surface of the liquid discharge pipe (205); and the movable valve block (302a-3) is sleeved. On the surface of the crossbar (302a-2), the round block (302a-4) and the gear (302a-5) are fixedly connected to one end of the crossbar (302a-2), the scraper (302b) is fixedly connected to the other end of the crossbar (302a-2), the movable plate (302a-6) is rotatably connected to the gear (302a-5) and the surface of the round block (302a-4), and the surfaces of the fixed valve bend (302a-1) and the movable valve bend (302a-3) are both provided with connecting holes (302a-7).

8. The die-casting equipment for automobile parts according to claim 7, characterized in that: The driving member (302d) comprises a vertical plate (302d-1), a first tooth (302d-2), a second tooth (302d-3) and a third tooth (302d-4); the vertical plate (302d-1) is fixedly connected to the end of the connecting plate (302c); and the first tooth (302d-2), the second tooth (302d-3) and the third tooth (302d-4) are all fixedly connected to the surface of the vertical plate (302d-1).

9. The die-casting equipment for automobile parts according to claim 8, characterized in that: A T-shaped block (302d-5) is fixedly connected to the surface of the bottom plate (101), a T-shaped slot (302d-6) matching the T-shaped block (302d-5) is opened on the surface of the vertical plate (302d-1), and the end of the T-shaped block (302d-5) extends into the T-shaped slot (302d-6) and is slidably connected thereto.

10. The die-casting equipment for automobile parts according to claim 7, characterized in that: The resilient member (302e) comprises a circular frame (302e-1) and a torsion spring (302e-2); the circular frame (302e-1) is fixedly connected to the surface of the liquid discharge pipe (205); the circular frame (302e-1) and the torsion spring (302e-2) are both sleeved on the surface of the cross bar (302a-2); and the two ends of the torsion spring (302e-2) are respectively fixedly connected to the inner wall of the circular frame (302e-1) and the surface of the cross bar (302a-2).

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