A hot-chamber die casting machine and method

Abstract

The application discloses a hot chamber die casting machine and method, comprising: a convex support, bearing seats are fixedly installed on both sides of the upper surface of the convex support, a rotating rod is rotatably installed between the bearing seats, a connecting block is fixedly installed on the outer surface of the rotating rod, a U-shaped frame is fixedly installed at one end of the connecting block, a first hydraulic rod is fixedly installed on the upper surface of the U-shaped frame, a piston rod of the first hydraulic rod penetrates into the U-shaped frame and a upper die is fixedly installed at the end of the piston rod, the upper die is flush with a lower die, the lower die is fixedly installed on the lower surface in the U-shaped frame, a pushing mechanism is linkage installed on the lower surface of the lower die and one end of the U-shaped frame, the pushing mechanism at one end of the U-shaped frame is pushed into a burr cutting mechanism, and the burr cutting mechanism is fixedly installed at one end of the upper die and the lower die. Through the design of the burr cutting mechanism, the burr and the corner of the casting are sheared by the upper die and the cutting knife at the same time, the parallel of the die casting and the burr removing process is realized, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hot chamber die casting machines, in particular to a hot chamber die casting machine and a method. Background Art

[0002] A die-casting machine is a series of industrial casting machines that hydraulically injects molten metal into a mold under pressure, cools it and forms it, and then obtains a solid metal casting after the mold is opened.

[0003] For example, the patent with the national authorized patent announcement number CN218425496U discloses a hot chamber die-casting machine, comprising a bottom plate, a support plate fixedly connected to the bottom plate, a water tank fixedly connected to the bottom plate, a filter box fixedly connected to the water tank, a filter plate fixedly connected to the interior of the filter box, a filter screen provided on the filter plate, an air inlet slidably connected to the filter box, a cooling box fixedly connected to the water tank, a refrigeration plate provided inside the cooling box, an air pump provided on the cooling box, and an exhaust pipe provided on the air pump. The utility model can pre-filter the gas by designing the filter box, prevent dust from accumulating in the pipe and causing blockage, thereby affecting the flow of hot gas. The air inlet can be limited by the contact between the fixed block and the clamping block and the air inlet, and the connection between the top block and the air inlet. The air inlet is easy to disassemble, making it convenient to clean the dust accumulated inside the air inlet.

[0004] However, the aforementioned hot chamber die-casting machines do not have automatic demolding or trimming functions after the casting cools, and manual demolding is time-consuming. After each die-casting operation, the operator needs to wait for the casting to cool to a certain degree before demolding. This process significantly prolongs the duration of a single die-casting cycle compared to automatic demolding, thereby reducing the production efficiency of the entire die-casting machine.

[0005] If the edges and burrs cannot be automatically cut, special equipment and processes will be needed to handle them in the subsequent processing. The casting needs to be transferred to a special deburring machine for processing, which involves operations such as moving and repositioning the workpiece, which consumes time and manpower. Summary of the Invention

[0006] The object of the present invention is to provide a hot chamber die casting machine and method to solve the problem in the above background art that the casting cannot be automatically demoulded and cannot automatically shear corners or burrs after cooling.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A hot chamber die-casting machine, comprising: a convex bracket, bearing seats fixedly mounted on both sides of the upper surface of the convex bracket, a rotating rod rotatably mounted between the bearing seats, a connecting block fixedly mounted on the outer surface of the rotating rod, a C-shaped frame fixedly mounted on one end of the connecting block, a first hydraulic rod fixedly mounted on the upper surface of the C-shaped frame, a piston rod of the first hydraulic rod extending through the C-shaped frame and an upper die fixedly mounted on the lower end thereof, the upper die being flush with the lower die, the lower die fixedly mounted on the inner lower surface of the C-shaped frame, and a die groove being formed on the upper surface of the lower die and being tightly covered by the upper die;

[0009] The lower surface of the lower die and one end of the C-shaped frame are linked to each other and a pusher mechanism is installed. The demoulding end of the pusher mechanism located on the lower surface of the lower die fits in a fitting groove. The fitting groove is provided in the die groove of the lower die, so that the pusher mechanism in the fitting groove can push the formed die out of the die groove so that the pusher mechanism at one end of the C-shaped frame can push it into the burr removal mechanism.

[0010] Among them, the burr removal mechanism is fixedly installed on one end of the upper mold and the lower mold respectively, so that when the upper mold is tightly covered on the upper surface of the lower mold to inject molten metal, it can drive the burr removal mechanism at one end of the upper mold to shear into the burr removal mechanism at one end of the lower mold, and at the same time be sleeved on the outer surface of the casting, so as to remove burrs on the pushed-out casting in a linkage manner.

[0011] Preferably, a heat chamber body is fixedly installed in the convex bracket, and the molten metal injection port of the heat chamber body is connected to the mold cavity.

[0012] Preferably, an L-shaped frame is fixedly installed on one end of the C-shaped frame, and the L-shaped frame is simultaneously sleeved on the outer surface of the pushing mechanism at one end of the lower mold. A second hydraulic rod is rotatably installed on one end of the C-shaped frame, and the piston rod of the second hydraulic rod is rotatably connected to one end of the L-shaped frame, so that the C-shaped frame can be pushed by the second hydraulic rod to rotate between the bearing seats through the rotating rod, thereby enabling the C-shaped frame to drive the casting with the burrs cut off to slide into the upper surface of the conveyor belt through the burr removal mechanism, and the conveyor belt is fixedly installed on the other end of the upper surface of the convex bracket.

[0013] Preferably, the pushing mechanism includes a third hydraulic rod, which is fixedly mounted on the lower surface of the C-shaped frame. The piston rod of the third hydraulic rod passes through the fitting groove and a pushing plate is fixedly mounted on the end thereof. The pushing plate fits in the fitting groove, so that the pushing plate can be pushed into the mold groove by the third hydraulic rod, so that it is flush with the mold groove, and can push the casting in the mold groove out of the mold groove to achieve the demolding function.

[0014] Preferably, a fourth hydraulic rod is fixedly mounted on one end of the C-shaped frame, and the lower surface of the fourth hydraulic rod is fixedly mounted on the upper surface of the L-shaped frame. The piston rod of the fourth hydraulic rod passes through the C-shaped frame and a C-shaped pushing plate is fixedly mounted on the end thereof.

[0015] Preferably, the inner arc surface of the C-shaped pushing plate is the same shape as the outer wall of the mold groove, so that the C-shaped pushing plate can be pushed by the fourth hydraulic rod to fit on one end of the outer surface of the casting, pushing the casting off the upper surface of the ejector plate, and through the fit between the C-shaped pushing plate and the casting, the casting can be accurately pushed into the burr removal mechanism.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the design of the convex bracket, the hot chamber body, the conveyor belt, the second hydraulic rod, the first hydraulic rod, the upper die, the lower die, the die groove, the pushing mechanism and the burr removal mechanism, when in use, the first hydraulic rod can be started to push the upper die to the upper surface of the lower die to seal the die groove, and then the hot chamber body piston is started to push the molten metal into the die groove under pressure, and then the metal is waited for to cool and solidify in the die groove to form a casting. After the casting is formed in the die groove, the first hydraulic rod can be started again to drive the upper die to be pulled up from the lower die and unfolded, and then the pushing mechanism is started to push the casting out of the die groove, and then the pushing mechanism at one end of the U-shaped bracket can be started again to The casting is pushed onto the upper surface of the burr removal mechanism. After the casting is pushed onto the upper surface of the placement plate, the first hydraulic rod is started again to tightly cover the upper surface of the lower die to seal the die groove. While the heating chamber body pushes the molten metal into the die groove, the upper die drives the burr removal mechanism at one end to press down and fit the outer surface of the casting, thereby achieving the staggered shearing of the burrs and corners extending from the outer surface of the casting. After the upper die is completely tightly covered on the upper surface of the lower die, the burr removal mechanism will be driven to press on the upper surface of the burr removal mechanism at one end of the lower die, so that the burr removal mechanism completely shears the outer surface of the casting to achieve a full range of shearing operations until the other end. After the castings of the group are cooled and fixed, the first hydraulic rod drives the upper die to be pulled apart from the upper surface of the lower die, and at the same time drives the burr removal mechanism to be pulled apart from the outer surface of the casting to expose the casting with sheared burrs or corners. Then the piston rod of the second hydraulic rod is started to push the L-shaped frame to drive the C-shaped frame to rotate between the bearing seats through the rotating rod, so that the C-shaped frame can drive the burr removal mechanism to rotate and tilt relative to the conveyor belt, and the casting above the burr removal mechanism and the sheared corners or burrs can slide into the upper surface of the conveyor belt through the tilting force and be transported away, thereby realizing the automatic demoulding and shearing of corners or burrs of the cooled and solidified casting. The automatic demoulding process is a mechanical operation and is carried out quickly according to the preset program. Compared with manual demoulding, there is no need to wait for the casting to cool to a suitable degree before demoulding, which greatly shortens the time of each die-casting cycle. For example, each die-casting cycle can save several minutes. In mass production, it can significantly increase the output per unit time. In addition, during the die-casting process, the edges or burrs of the demoulded casting can be directly sheared, avoiding the subsequent transfer of the casting to other equipment for special deburring processing, saving the purchase and maintenance costs of additional equipment and related processing time, and improving the efficiency of the entire production process.

[0018] 2. Through the design of the third hydraulic rod, the push plate, the fourth hydraulic rod and the C-shaped push plate, when in use, the first hydraulic rod can be started to push the upper mold to the upper surface of the lower mold to seal the mold groove, and then the hot chamber body piston is started to push the molten metal into the mold groove under pressure, and then the metal is waited for to cool and solidify in the mold groove to form a casting. After the casting is formed in the mold groove, the first hydraulic rod can be started again to drive the upper mold to be pulled up from the lower mold and unfolded, and then the third hydraulic rod is started to push the push plate at one end of the piston rod into the mold groove from the matching groove, which can push the casting out of the mold groove and make it flush with the C-shaped push plate, and then the fourth hydraulic rod is started again to push The U-shaped push plate fits over the lower half of the casting's outer surface, offsetting corners and burrs, and precisely pushing them from the top surface of the ejector plate to the top surface of the placement plate, thereby achieving automatic demolding of the casting. The automatic demolding process is operated by a hydraulic rod according to a program, without the need for excessive human intervention. Compared with traditional manual demolding, the entire demolding process is much faster. For example, manual demolding may take a long time due to lack of operator experience or the need for more preparation work, while automatic demolding can be initiated immediately after the casting has cooled to the appropriate degree. The time taken for the demolding step in each die-casting cycle is significantly shortened, thereby improving overall production efficiency.

[0019] 3. Through the design of the cutter, tray, guide groove, placement plate and lower slide plate, the casting is pushed to the upper surface of the placement plate and then the first hydraulic rod is started to seal the mold groove at the upper surface of the lower mold. While the heating chamber body pushes the molten metal into the mold groove, the upper mold drives the cutter at one end to press down and fit the outer surface of the casting, thereby achieving the staggered shearing of burrs and corners extending from the outer surface of the casting. Until the upper mold is completely covered on the upper surface of the lower mold, it will drive the cutter to press against the upper surface of the lower slide plate, so that the cutter completely shears the outer surface of the casting to achieve a full range of shearing operations, and the lower slide plate under pressure will be received in the guide groove and pressed against one end of the spring at the same time, so that the spring applies an upward reset elastic force to the lower slide plate, until the other group of castings is cooled and fixed, so that the first hydraulic rod drives the upper mold to be pulled from the upper surface of the lower mold, and at the same time drives the cutter to be pulled from the outer surface of the casting. The casting with sheared burrs or edges is exposed, and the lower slide plate is also elastically lifted from the guide groove by the elastic force applied by the spring and flush with the placement plate. Then the piston rod of the second hydraulic rod is started to push the L-shaped frame to drive the C-shaped frame to rotate between the bearing seats through the rotating rod, so that the C-shaped frame can drive the pallet to rotate and tilt relative to the conveyor belt, and the casting above the pallet and the sheared edges or burrs can slide into the upper surface of the conveyor belt through the tilting force and be transported away, thereby realizing the operation of automatic shearing of edges and burrs. Moreover, since the cutter shears the edges and burrs just after the casting is formed, it can accurately remove the part extending from the outer surface of the casting. The automatic shearing operation drives the cutter to press down and rise through the upper die, so that the dimensional accuracy of the casting will not be affected by human factors such as uneven force and shearing angle deviation during the shearing process, which helps to ensure the consistency of the product.

[0020] A hot chamber die casting method comprises the following steps:

[0021] S1. When in use, the upper mold cover can be pushed onto the upper surface of the lower mold by activating the first hydraulic rod to seal the mold groove. Then, the piston of the hot chamber body is activated to push the molten metal into the mold groove under pressure. Then, the metal is allowed to cool and solidify in the mold groove to form a casting.

[0022] S2. After the casting is formed in the die groove, the first hydraulic rod is activated again to drive the upper die to be pulled up from the lower die. Then, the third hydraulic rod is activated to push the push plate at one end of the piston rod from the fitting groove into the die groove, so that the casting can be pushed out of the die groove and flush with the C-shaped push plate. Then, the fourth hydraulic rod is activated again to push the C-shaped push plate to fit the lower half of the outer surface of the casting, staggering the corners and burrs of the casting, and accurately pushing it from the upper surface of the push plate to the upper surface of the placement plate;

[0023] S3. After the casting is pushed onto the upper surface of the placement plate, the first hydraulic rod is started again to tightly cover the upper surface of the lower die to seal the die groove. While the heating chamber body pushes the molten metal into the die groove, the upper die drives the cutter at one end to press down and fit the outer surface of the casting, thereby achieving staggered shearing of burrs and corners extending from the outer surface of the casting. Until the upper die is completely tightly covered on the upper surface of the lower die, the cutter will be driven to press against the upper surface of the lower slide plate, so that the cutter completely shears the outer surface of the casting to achieve a full range of shearing operations, and the lower slide plate under pressure will be stored in the guide groove. Until the other group of castings is cooled and fixed, the first hydraulic rod drives the upper die to be pulled apart from the upper surface of the lower die, and at the same time, the cutter will be driven to pull apart from the outer surface of the casting to expose the casting with sheared burrs or corners.

[0024] S4. Then, the piston rod of the second hydraulic rod is started to push the L-shaped frame to drive the U-shaped frame to rotate between the bearing seats through the rotating rod, so that the U-shaped frame can drive the pallet to rotate and tilt relative to the conveyor belt, and the castings and sheared edges or burrs above the pallet can slide into the upper surface of the conveyor belt through the tilting force and be transported away. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall structure of the hot chamber die casting machine of the present invention;

[0026] Figure 2 Schematic diagram of the structure of the U-shaped frame of the present invention;

[0027] Figure 3 It is a structural schematic diagram of the conveyor belt of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the U-shaped frame of the present invention being pushed and tilted by the second hydraulic rod;

[0029] Figure 5 This is a schematic diagram of the structure in which the lower mold tightly covers the upper surface of the upper mold of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the material pushing mechanism of the present invention;

[0031] Figure 7 It is a structural schematic diagram of the fitting groove and the mold groove of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the cutter of the present invention;

[0033] Figure 9 It is a structural schematic diagram of the tray of the present invention;

[0034] Figure 10 It is a structural schematic diagram of the burr removal mechanism of the present invention.

[0035] In the figure: 1. convex bracket; 101. hot chamber body; 102. conveyor belt; 103. second hydraulic rod; 104. U-shaped frame; 105. first hydraulic rod; 106. upper die; 107. lower die; 108. die groove; 109. connecting block; 110. rotating rod; 111. bearing seat; 112. L-shaped frame; 113. fitting groove; 2. pushing mechanism; 201. third hydraulic rod; 202. pushing plate; 203. fourth hydraulic rod; 204. U-shaped pushing plate; 3. burr removal mechanism; 301. cutter; 302. tray; 303. guide groove; 304. placement plate; 305. lower slide plate; 306. slide column; 307. spring. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1-10 , this embodiment provides the following technical solutions:

[0038] like Figure 1-Figure 5 As shown, a hot chamber die-casting machine includes: a convex bracket 1, bearing seats 111 are fixedly mounted on both sides of the upper surface of the convex bracket 1, a rotating rod 110 is rotatably mounted between the bearing seats 111, a connecting block 109 is fixedly mounted on the outer surface of the rotating rod 110, a C-shaped frame 104 is fixedly mounted on one end of the connecting block 109, a first hydraulic rod 105 is fixedly mounted on the upper surface of the C-shaped frame 104, the piston rod of the first hydraulic rod 105 passes through the C-shaped frame 104 and an upper die 106 is fixedly mounted on the lower end, the upper die 106 is flush with the lower die 107, the lower die 107 is fixedly mounted on the lower surface of the C-shaped frame 104, and the upper surface of the lower die 107 is provided with a die groove 108 that is tightly covered by the upper die 106;

[0039] The lower surface of the lower die 107 and one end of the C-shaped frame 104 are linked to each other and are provided with a pusher mechanism 2. The demoulding end of the pusher mechanism 2 located on the lower surface of the lower die 107 fits into the fitting groove 113. The fitting groove 113 is provided in the die groove 108 of the lower die 107. The pusher mechanism 2 in the fitting groove 113 can push the formed die out of the die groove 108 so that the pusher mechanism 2 at one end of the C-shaped frame 104 can push it into the burr removal mechanism 3.

[0040] Among them, the burr removal mechanism 3 is fixedly installed on one end of the upper mold 106 and the lower mold 107 respectively, so that when the upper mold 106 is tightly covered on the upper surface of the lower mold 107 and the molten metal is injected, it can drive the burr removal mechanism 3 at one end of the upper mold 106 to cross-cut and shear into the burr removal mechanism 3 at one end of the lower mold 107, and at the same time be sleeved on the outer surface of the casting, so as to remove the burrs of the pushed-out casting in a linkage manner.

[0041] The heat chamber body 101 is fixedly installed in the convex bracket 1 , and the molten metal injection port of the heat chamber body 101 is connected to the mold cavity 108 .

[0042] An L-shaped frame 112 is fixedly installed at one end of the C-shaped frame 104, and the L-shaped frame 112 is also mounted on the outer surface of the pushing mechanism 2 at one end of the lower mold 107. A second hydraulic rod 103 is rotatably installed at one end of the C-shaped frame 104, and the piston rod of the second hydraulic rod 103 is rotatably connected to one end of the L-shaped frame 112, so that the C-shaped frame 104 can be pushed by the second hydraulic rod 103 through the rotating rod 110 to rotate between the bearing seats 111, thereby enabling the C-shaped frame 104 to drive the casting after the burrs are cut to slide through the burr removal mechanism 3 into the upper surface of the conveyor belt 102, and the conveyor belt 102 is fixedly mounted on the other end of the upper surface of the convex bracket 1.

[0043] Through the design of the convex bracket 1, the hot chamber body 101, the conveyor belt 102, the second hydraulic rod 103, the first hydraulic rod 105, the upper die 106, the lower die 107, the die groove 108, the pushing mechanism 2 and the burr removal mechanism 3, when in use, the first hydraulic rod 105 can be started to push the upper die 106 to cover the upper surface of the lower die 107 to seal the die groove 108, and then the hot chamber body 101 piston is started to push the molten metal into the die groove 108 under pressure, and then the metal is waited for to cool and solidify in the die groove 108 to form a casting. After the casting is formed in the die groove 108, the first hydraulic rod 105 can be started again to drive the upper die 106 to be pulled up from the lower die 107 and unfolded, and then the pushing mechanism 2 is started to cast the die groove 108. 08, and then the pushing mechanism 2 at one end of the U-shaped frame 104 can be started again to push the casting onto the upper surface of the burr removal mechanism 3. After the casting is pushed to the upper surface of the placing plate 304, the first hydraulic rod 105 is started again to tightly cover the upper surface of the lower die 107 to seal the die groove 108. While the heating chamber body 101 pushes the molten metal into the die groove 108, the upper die 106 drives the burr removal mechanism 3 at one end to press down and fit the outer surface of the casting, thereby realizing the staggered shearing of the burrs and corners extending from the outer surface of the casting, until the upper die 106 is completely tightly covered on the upper surface of the lower die 107, it will drive the burr removal mechanism 3 to press on the upper surface of the burr removal mechanism 3 at one end of the lower die 107 to make the burrs The cutting mechanism 3 completely shears the outer surface of the casting to achieve a full range of shearing operations, until the other group of castings is cooled and fixed, so that the first hydraulic rod 105 drives the upper mold 106 to be pulled apart from the upper surface of the lower mold 107, and at the same time, the burr removal mechanism 3 is also driven to be pulled apart from the outer surface of the casting to expose the casting with sheared burrs or corners. Then, the piston rod of the second hydraulic rod 103 is started to push the L-shaped frame 112 to drive the C-shaped frame 104 to rotate between the bearing seats 111 through the rotating rod 110, so that the C-shaped frame 104 can drive the burr removal mechanism 3 to rotate and tilt relative to the conveyor belt 102, and the casting above the burr removal mechanism 3 and the sheared corners or burrs can slide into the upper surface of the conveyor belt 102 through the tilting force. The surface is transported away, thereby realizing the automatic demoulding and shearing of corners or burrs of the cooled and solidified casting. The automatic demoulding process is a mechanical operation, which is carried out quickly according to the preset program. Compared with manual demoulding, there is no need to wait for the casting to cool to a suitable degree before demoulding, which greatly shortens the time of each die-casting cycle. For example, each die-casting cycle can save several minutes. In mass production, the output per unit time can be significantly increased. In addition, during the die-casting process, the corners or burrs of the demoulded casting can be directly sheared, which avoids the subsequent transfer of the casting to other equipment for special deburring processing, saves the purchase and maintenance costs of additional equipment and related processing time, and improves the efficiency of the entire production process.

[0044] like Figure 6-Figure 7 As shown, the pushing mechanism 2 includes a third hydraulic rod 201, which is fixedly mounted on the lower surface of the U-shaped frame 104. The piston rod of the third hydraulic rod 201 passes through the fitting groove 113 and a pushing plate 202 is fixedly mounted on the end thereof. The pushing plate 202 fits in the fitting groove 113, so that the pushing plate 202 can be pushed into the die groove 108 through the third hydraulic rod 201, so that it is flush with the die groove 108, and can push the casting in the die groove 108 out of the die groove 108 to achieve the demolding function.

[0045] A fourth hydraulic rod 203 is fixedly mounted on one end of the C-shaped frame 104 , and a lower surface of the fourth hydraulic rod 203 is fixedly mounted on the upper surface of the L-shaped frame 112 . The piston rod of the fourth hydraulic rod 203 passes through the C-shaped frame 104 and a C-shaped pushing plate 204 is fixedly mounted on the end thereof.

[0046] The inner arc surface of the C-shaped pushing plate 204 is the same shape as the outer wall of the die groove 108, so that the C-shaped pushing plate 204 can be pushed by the fourth hydraulic rod 203 to fit on one end of the outer surface of the casting, pushing the casting off the upper surface of the ejector plate 202, and through the fit between the C-shaped pushing plate 204 and the casting, it can accurately push the casting into the burr removal mechanism 3.

[0047] Through the design of the third hydraulic rod 201, the push plate 202, the fourth hydraulic rod 203 and the U-shaped pushing plate 204, when in use, the first hydraulic rod 105 can be started to push the upper mold 106 to cover the upper surface of the lower mold 107 to seal the mold groove 108, and then the piston of the hot chamber body 101 is started to push the molten metal into the mold groove 108 under pressure, and then the metal is waited for to cool and solidify in the mold groove 108 to form a casting. After the casting is formed in the mold groove 108, the first hydraulic rod 105 can be started again to drive the upper mold 106 to be pulled up and unfolded from the lower mold 107, and then the third hydraulic rod 201 is started to push the push plate 202 at one end of the piston rod into the mold groove 108 from the fitting groove 113, so that the casting can be pushed out of the mold groove 108 to make it The casting is flush with the C-shaped pushing plate 204, and then the fourth hydraulic rod 203 is started again to push the C-shaped pushing plate 204 to fit the lower half of the outer surface of the casting, staggering the corners and burrs of the casting, and accurately pushing it from the upper surface of the push plate 202 to the upper surface of the placement plate 304, thereby realizing the automatic demoulding of the casting. The automatic demoulding process is operated by the hydraulic rod according to the program, and no excessive human intervention is required. Compared with traditional manual demoulding, the entire demoulding process is faster. For example, manual demoulding may take a long time due to unskilled operation or more preparation work, while automatic demoulding can be started immediately after the casting has cooled to a suitable degree. The time occupied by the demoulding link in each die-casting cycle is greatly shortened, thereby improving the overall production efficiency.

[0048] like Figures 8-10 As shown, the burr removal mechanism 3 includes a tray 302, which is fixedly mounted at one end of the lower mold 107 and flush with the lower mold 107. A guide groove 303 is provided in the tray 302, and a slide column 306 is fixedly mounted in the guide groove 303. A placement plate 304 is fixedly mounted on the upper surface of the slide column 306. The placement plate 304 is the same size as the mold groove 108, so that the casting can be accurately pushed to the upper surface of the placement plate 304 by the U-shaped pushing plate 204. The placement plate 304 is flush with the tray 302, and a lower slide plate 305 is slidably mounted on the outer surface of the slide column 306. The lower slide plate 305 slides between the guide groove 303 and the outer surface of the placement plate 304.

[0049] A cutter 301 is fixedly installed at one end of the upper mold 106, and the inner annular incision of the cutter 301 fits with the outer surface of the placement plate 304, so that the cutter 301 can be driven by the upper mold 106 to shear and slide to the outer surface of the placement plate 304 and at the same time press the lower slide 305 into the guide groove 303, thereby expanding the distance between the placement plate 304 and the tray 302 to store the cut scraps or burrs.

[0050] A spring 307 is mounted on the outer surface of the slide column 306, and the upper and lower ends of the spring 307 are fixedly connected to the lower surface of the lower slide 305 and the lower surface of the guide groove 303 respectively, so that the lower slide 305 can push the sheared scraps or burrs out to the upper surface of the tray 302 through the elastic force exerted by the spring 307.

[0051] Through the design of the cutter 301, tray 302, guide groove 303, placement plate 304 and lower slide plate 305, the casting is pushed to the upper surface of the placement plate 304 and then the first hydraulic rod 105 is started to tightly cover the upper surface of the lower die 107 to seal the die groove 108. At the same time, the heating chamber body 101 pushes the molten metal into the die groove 108, and the upper die 106 drives the cutter 301 at one end to press down and fit the outer surface of the casting, thereby achieving the staggered shearing of the burrs and corners extending from the outer surface of the casting until the upper die 106 is completely After the upper surface of the lower die 107 is tightly covered, the cutter 301 will be driven to press against the upper surface of the lower slide 305, so that the cutter 301 can completely shear the outer surface of the casting to achieve a full range of shearing operations. The lower slide 305, which is pressed, will be received in the guide groove 303 and press against one end of the spring 307, so that the spring 307 exerts an upward restoring elastic force on the lower slide 305 until the other group of castings is cooled and fixed, so that the first hydraulic rod 105 drives the upper die 106 to be pulled apart from the upper surface of the lower die 107, and at the same time, it will also bring The movable cutter 301 is pulled away from the outer surface of the casting to expose the casting with sheared burrs or corners, and the lower slide plate 305 is also elastically lifted from the guide groove 303 by the elastic force applied by the spring 307 and flush with the placement plate 304. Then the piston rod of the second hydraulic rod 103 is activated to push the L-shaped frame 112 to drive the C-shaped frame 104 to rotate between the bearing seats 111 through the rotating rod 110, so that the C-shaped frame 104 can drive the tray 302 to rotate and tilt to the conveyor belt 102, and the casting above the tray 302 and the sheared casting are moved to the opposite side of the conveyor belt 102. The cut corners or burrs can slide into the upper surface of the conveyor belt 102 through the tilting force and be transported away, thereby realizing the operation of automatically cutting corners and burrs. Moreover, since the cutter 301 cuts the corners and burrs just after the casting is formed, the part extending from the outer surface of the casting can be accurately removed. The automatic shearing operation drives the cutter 301 to press down and rise through the upper mold 106, so that the dimensional accuracy of the casting will not be affected by human factors such as uneven force, shearing angle deviation, etc. during the shearing process, which helps to ensure the consistency of the product.

[0052] According to the above technical solution, the working steps of this solution are summarized and sorted out: when performing the casting operation, the first hydraulic rod 105 can be started to push the upper mold 106 to cover the upper surface of the lower mold 107 to seal the mold groove 108, and then the piston of the hot chamber body 101 is started to push the molten metal into the mold groove 108 under pressure, and then the metal is waited for to cool and solidify in the mold groove 108 to form a casting. After the casting is formed in the mold groove 108, the first hydraulic rod 105 can be started again to drive the upper mold 106 to be pulled up from the lower mold 107 and unfolded, and then the third hydraulic rod 201 is started to push the piston The push plate 202 at one end of the rod is pushed into the die groove 108 from the fitting groove 113, and the casting can be pushed out of the die groove 108 so that it is flush with the C-shaped pushing plate 204. Then the fourth hydraulic rod 203 is started again to push the C-shaped pushing plate 204 to fit the lower half of the outer surface of the casting, staggering the corners and burrs of the casting, and accurately pushing it from the upper surface of the push plate 202 to the upper surface of the placement plate 304. After the casting is pushed to the upper surface of the placement plate 304, the first hydraulic rod 105 is started again to tightly cover the upper surface of the lower mold 107 to seal the die groove 108, and the heating chamber body 1 01 Push the molten metal into the die groove 108 while the upper die 106 drives the cutter 301 at one end to press down and fit the outer surface of the casting, thereby realizing the staggered shearing of the burrs and corners extending from the outer surface of the casting, until the upper die 106 is completely covered on the upper surface of the lower die 107, it will drive the cutter 301 to press on the upper surface of the lower slide 305, so that the cutter 301 completely shears the outer surface of the casting to achieve a full range of shearing operations, and the lower slide 305 that is pressed will be received in the guide groove 303 until the other group of castings is cooled and fixed so that the first hydraulic rod 1 05 drives the upper die 106 to be pulled apart from the upper surface of the lower die 107, and at the same time drives the cutter 301 to be pulled apart from the outer surface of the casting to expose the casting with sheared burrs or corners. Then the piston rod of the second hydraulic rod 103 is started to push the L-shaped frame 112 to drive the C-shaped frame 104 to rotate between the bearing seats 111 through the rotating rod 110, so that the C-shaped frame 104 can drive the tray 302 to rotate and tilt relative to the conveyor belt 102, and the casting above the tray 302 and the sheared corners or burrs can slide into the upper surface of the conveyor belt 102 through the tilting force and be transported away.

[0053] A hot chamber die casting method comprises the following steps:

[0054] S1. When in use, the first hydraulic rod 105 is activated to push the upper die 106 to cover the upper surface of the lower die 107 to seal the die groove 108. Then, the piston of the hot chamber body 101 is activated to push the molten metal into the die groove 108 under pressure. Then, the metal is allowed to cool and solidify in the die groove 108 to form a casting.

[0055] S2. After the casting is formed in the die groove 108, the first hydraulic rod 105 is activated again to drive the upper die 106 to be pulled up and unfolded from the lower die 107. Then, the third hydraulic rod 201 is activated to push the push plate 202 at one end of the piston rod from the fitting groove 113 into the die groove 108, so that the casting can be pushed out of the die groove 108 and flush with the C-shaped push plate 204. Then, the fourth hydraulic rod 203 is activated again to push the C-shaped push plate 204 to fit the lower half of the outer surface of the casting, staggering the corners and burrs of the casting, and accurately pushing it from the upper surface of the push plate 202 to the upper surface of the placement plate 304.

[0056] S3, after pushing the casting to the upper surface of the placement plate 304, the first hydraulic rod 105 is started again to tightly cover the upper surface of the lower die 107 to seal the die groove 108. At the same time that the heating chamber body 101 pushes the molten metal into the die groove 108, the upper die 106 drives the cutter 301 at one end to press down and fit the outer surface of the casting, thereby achieving the staggered shearing of the burrs and corners extending from the outer surface of the casting, until the upper die 106 completely covers the upper surface of the lower die 107. The cutter 301 is driven to press against the upper surface of the lower slide 305, so that the cutter 301 completely cuts through the outer surface of the casting to achieve a full range of shearing operations. The lower slide 305, which is under pressure, is stored in the guide groove 303 until the other group of castings is cooled and fixed. The first hydraulic rod 105 drives the upper die 106 to be pulled apart from the upper surface of the lower die 107, and at the same time drives the cutter 301 to be pulled apart from the outer surface of the casting, exposing the castings with sheared burrs or corners.

[0057] S4. Then, the piston rod of the second hydraulic rod 103 is started to push the L-shaped frame 112 to drive the C-shaped frame 104 to rotate between the bearing seats 111 through the rotating rod 110, so that the C-shaped frame 104 can drive the tray 302 to rotate and tilt relative to the conveyor belt 102, and the castings and sheared corners or burrs above the tray 302 can slide into the upper surface of the conveyor belt 102 due to the tilting force and be transported away.

[0058] In summary: In the entire operation process, each process is closely linked, from mold closing, material injection, casting cooling, demoulding, casting pushing, deburring to the final casting transportation, one link after another, and multiple processes are carried out in parallel. While the heating chamber body 101 is injecting material, the upper mold 106 drives the cutter 301 to shear the burrs and corners of the casting, realizing the parallel operation of die-casting and deburring processes, which saves the time required for a separate deburring process. Compared with the traditional process of die-casting first and then deburring separately, it can make more efficient use of time and further improve production efficiency.

[0059] Parts not described in the present invention are the same as those in the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot chamber die casting machine, characterized in that: include: A convex bracket, bearing seats are fixedly installed on both sides of the upper surface of the convex bracket, a rotating rod is rotatably installed between the bearing seats, a connecting block is fixedly installed on the outer surface of the rotating rod, a C-shaped frame is fixedly installed on one end of the connecting block, a first hydraulic rod is fixedly installed on the upper surface of the C-shaped frame, the piston rod of the first hydraulic rod passes through the C-shaped frame and an upper mold is fixedly installed on the end thereof, the upper mold is flush with the lower mold, the lower mold is fixedly installed on the lower surface of the C-shaped frame, and a mold groove is opened on the upper surface of the lower mold for sealing with the upper mold; A pusher mechanism is installed on the lower surface of the lower die and one end of the C-shaped frame in a linkage manner. The demoulding end of the pusher mechanism located on the lower surface of the lower die fits into a fitting groove provided in the die groove of the lower die, so that the pusher mechanism in the fitting groove can push the formed casting out of the die groove so that the pusher mechanism at one end of the C-shaped frame can push it into the burr removal mechanism. The burr removal mechanisms are fixedly mounted on one end of the upper die and the lower die respectively. When the upper die is tightly covered on the upper surface of the lower die and molten metal is poured in, the burr removal mechanism on one end of the upper die is driven to shear into the burr removal mechanism on one end of the lower die and simultaneously sleeved on the outer surface of the casting, thereby removing burrs from the cast part in a linkage manner. The burr removal mechanism includes a tray, which is fixedly mounted at one end of the lower die and flush with the lower die, a guide groove is provided in the tray, a slide column is fixedly mounted in the guide groove, a placement plate is fixedly mounted on the upper surface of the slide column, and the placement plate is the same size as the die groove, so that the casting can be accurately pushed to the upper surface of the placement plate by the pushing mechanism, and the placement plate is flush with the tray, and a lower slide plate is slidably mounted on the outer surface of the slide column, and the lower slide plate slides between the guide groove and the outer surface of the placement plate; a spring is sleeved on the outer surface of the slide column, and the upper and lower ends of the spring are respectively fixedly connected to the lower surface of the lower slide plate and the lower surface of the guide groove, and the lower slide plate can push the sheared scraps or burrs out to the upper surface of the tray through the elastic force exerted by the spring; A cutter is fixedly installed at one end of the upper die, and the inner annular incision of the cutter fits with the outer surface of the placement plate, so that the cutter can be driven by the upper die to shear and slide to the outer surface of the placement plate and at the same time press the lower slide into the guide groove; the upper die drives the cutter to press down and fit the outer surface of the casting, and cross-cuts the burrs and corners extending from the outer surface of the casting.

2. The hot chamber die casting machine according to claim 1, characterized in that: A heat chamber body is fixedly installed in the convex bracket, and a metal liquid injection port of the heat chamber body is connected to the mold groove.

3. The hot chamber die casting machine according to claim 1, characterized in that: An L-shaped frame is fixedly installed at one end of the U-shaped frame, and the L-shaped frame is simultaneously sleeved on the outer surface of the pushing mechanism at one end of the U-shaped frame. A second hydraulic rod is rotatably installed at one end of the U-shaped frame, and a piston rod of the second hydraulic rod is rotatably connected to one end of the L-shaped frame.

4. The hot chamber die casting machine according to claim 3, characterized in that: The C-shaped frame can be pushed by the second hydraulic rod through the rotating rod to rotate between the bearing seats, so that the C-shaped frame can drive the deburred casting to slide into the upper surface of the conveyor belt through the burr removal mechanism. The conveyor belt is fixedly installed on the other end of the upper surface of the convex bracket.

5. The hot chamber die casting machine according to claim 1, characterized in that: The pushing mechanism includes a third hydraulic rod, which is fixedly installed on the lower surface of the U-shaped frame. The piston rod of the third hydraulic rod passes through the fitting groove and a pushing plate is fixedly installed on the end thereof.

6. The hot chamber die casting machine according to claim 5, characterized in that: The ejector plate fits into the fitting groove, so that the ejector plate can be pushed into the die groove through the third hydraulic rod, so that it is flush with the die groove, and can push the casting in the die groove out of the die groove to realize the demoulding function.

7. The hot chamber die casting machine according to claim 1, characterized in that: A fourth hydraulic rod is fixedly mounted on one end of the C-shaped frame, and a lower surface of the fourth hydraulic rod is fixedly mounted on the upper surface of the L-shaped frame. The piston rod of the fourth hydraulic rod passes through the C-shaped frame and a C-shaped pushing plate is fixedly mounted on the end thereof.

8. The hot chamber die casting machine according to claim 7, characterized in that: The inner arc surface of the C-shaped pushing plate has the same shape as the outer wall of the mold groove, so that the C-shaped pushing plate can be pushed by the fourth hydraulic rod to fit on one end of the outer surface of the casting, pushing the casting off the upper surface of the ejector plate, and through the fit between the C-shaped pushing plate and the casting, it can accurately push the casting into the burr removal mechanism.

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