Die casting device for square spike machining and die casting method of die casting device

Abstract

The invention relates to the technical field of square spike machining, and discloses a mold die-casting device for square spike machining and a die-casting method.The mold die-casting device for square spike machining comprises a workbench, a square spike comprises a prismatic-table-shaped shell, and a filler layer is arranged in the prismatic-table-shaped shell; a mold mechanism and two injection mechanisms are arranged on the workbench, the mold mechanism comprises a first mold assembly and a second mold assembly, the two injection mechanisms are both connected with the first mold assembly, and the second mold assembly is arranged in the first mold assembly. According to the mold die-casting device for machining the square spike and the die-casting method of the mold die-casting device, a group of foldable prismatic table-shaped molds are additionally arranged in an existing mold for die-casting the square spike, so that a shell of the cast aluminum shell spike can be firstly formed during die-casting, and then filler is injected, and the problem that in the prior art, the cast aluminum shell spike which is an inwards-concave complex casting is difficult to mold is solved. And die casting is difficult.

Description

Technical Field

[0001] The invention relates to the technical field of square road spike processing, in particular to a die casting device for processing square road spikes and a die casting method thereof. Background Art

[0002] Square road spikes are a common traffic barrier used to guide people to drive in the right direction, prevent speeding and traffic accidents. The upper part of a square road spike is usually prism-shaped and can be equipped with a reflector, while the lower part is a nail-shaped structure used to wedge into the ground. Square road spikes can be divided into cast aluminum road spikes, plastic road spikes, ceramic road spikes, glass ball road spikes, etc. according to the material.

[0003] Cast aluminum road spikes are divided into two types: full cast aluminum and cast aluminum shell. Full cast aluminum means that the shell is made entirely of metal and has a relatively high compressive strength. Cast aluminum shell means that the shell is cast aluminum with fillers inside. The cost of such road spikes is lower than that of full cast aluminum. Cast aluminum road spikes are usually made by die casting, which is a process of applying high pressure to the molten metal in the mold cavity to form the road spikes.

[0004] In the prior art, it is difficult to die-cast a casting with a complex inner concave such as a cast aluminum shell road spike. Therefore, in order to solve this technical problem, a die-casting device for processing square road spikes and a die-casting method thereof are proposed. Summary of the invention

[0005] The present invention provides a die-casting device for processing square road spikes and a die-casting method thereof, which has the beneficial effect of adding a group of foldable prism-shaped dies in the existing die-casting square road spike die, so that the outer shell of the cast aluminum shell road spike can be first formed during die-casting, and then the filler can be injected, thereby solving the problem in the prior art mentioned in the above background technology that it is difficult to die-cast a casting with a complex inner concave such as a cast aluminum shell road spike.

[0006] The present invention provides the following technical solutions: a die-casting device for processing square road spikes, used for die-casting square road spikes, the die-casting device for processing square road spikes comprising a workbench, the square road spike comprising a prism-shaped shell, a filler layer being arranged in the prism-shaped shell;

[0007] The workbench is provided with a mold mechanism and two injection mechanisms, the mold mechanism includes a first mold assembly and a second mold assembly, the two injection mechanisms are connected to the first mold assembly, and the second mold assembly is arranged in the first mold assembly;

[0008] Injecting molten metal into the first mold assembly through one of the injection mechanisms, thereby die-casting the prism-shaped shell between the first mold assembly and the second mold assembly;

[0009] The filler is injected into the prism-shaped shell by another injection mechanism, so that the filler layer is die-casted in the prism-shaped shell.

[0010] As an optional solution of the die-casting device for processing square road spikes described in the present invention, wherein: the first die assembly includes a fixed die, a movable die and a first hydraulic cylinder, the fixed die and the first hydraulic cylinder are arranged on the workbench, and the movable die is arranged on the piston rod of the first hydraulic cylinder;

[0011] A fifth hydraulic cylinder and two sixth hydraulic cylinders are also provided on the workbench, the second mold assembly is connected to the piston rod of the fifth hydraulic cylinder, and the piston rods of the two sixth hydraulic cylinders extend into the first mold assembly.

[0012] As an optional solution of the die-casting device for processing square road spikes of the present invention, wherein: two reserved holes are symmetrically provided on the prism-shaped shell, and a nail portion is provided on the prism-shaped shell;

[0013] The inner cavities of the fixed mold and the movable mold form a prism-shaped inner cavity after being assembled, and the prism-shaped inner cavity fits with the prism-shaped shell;

[0014] Two protrusions are symmetrically arranged on the movable mold, and the two protrusions are respectively matched with the two reserved holes;

[0015] A nail-shaped inner cavity is provided in the fixed mold, and the nail-shaped inner cavity fits with the nail portion.

[0016] As an optional solution of the die-casting device for processing square road spikes described in the present invention, wherein: a through hole is opened on the movable mold, the second mold assembly includes a lifting seat slidably arranged in the through hole, four first support rods are movably hinged on the lifting seat through a hinge shaft, and a first template assembly is arranged between two adjacent first support rods;

[0017] The lifting seat is also movably hinged with four fifth support rods via hinge shafts, and a second template assembly is arranged between two adjacent fifth support rods. The four first template assemblies and the four second template assemblies are arranged in a prism shape.

[0018] As an optional solution of the mold die-casting device for processing square road spikes described in the present invention, the first template assembly includes a second support rod and two first templates, the second support rod is movably hinged to the lifting seat through a hinge shaft, one end of the two first templates is respectively movably hinged to two adjacent first support rods through a hinge shaft, and the other ends of the two first templates are both movably hinged to the second support rod through a hinge shaft.

[0019] As an optional solution of the mold die-casting device for processing square road spikes described in the present invention, wherein: a third support rod is slidably arranged on the first support rod, a fourth support rod is slidably arranged on the second support rod, a second template is movably hinged to the third support rod through a hinge shaft, a third template is movably hinged to the fourth support rod through a hinge shaft, the first template assembly also includes a fourth template, and the fourth template is slidably arranged on the second template and the third template.

[0020] As an optional solution of the mold die-casting device for processing square road spikes described in the present invention, the second template assembly includes a sixth support rod and two fifth templates, the sixth support rod is movably hinged to the lifting seat through a hinge shaft, one end of the two fifth templates are respectively movably hinged to two adjacent fifth support rods through a hinge shaft, and the other ends of the two fifth templates are both movably hinged to the sixth support rod through a hinge shaft.

[0021] As an optional solution of the die-casting device for processing square road spikes described in the present invention, the second die assembly further includes a driving assembly, the driving assembly includes a first sliding rod slidably arranged on the lifting seat, the lifting seat is further provided with a second hydraulic cylinder, the piston rod of the second hydraulic cylinder is connected to the first sliding rod, the driving assembly further includes a first connecting rod, and both ends of the first connecting rod are respectively hinged to the first sliding rod and the first support rod through a hinge shaft;

[0022] A second sliding rod is slidably arranged on the first sliding rod, a third hydraulic cylinder is also arranged on the lifting seat, a piston rod of the third hydraulic cylinder is connected to the second sliding rod, and the driving assembly further comprises a second connecting rod, two ends of the second connecting rod are respectively hinged to the second sliding rod and the third supporting rod through hinge shafts;

[0023] A third sliding rod is slidably arranged on the second sliding rod, a fourth hydraulic cylinder is also arranged on the lifting seat, a piston rod of the fourth hydraulic cylinder is connected to the third sliding rod, the driving assembly also includes a third connecting rod, two ends of the third connecting rod are respectively hinged to the third sliding rod and the fifth supporting rod through hinge shafts.

[0024] As an optional solution of the die-casting device for processing square road spikes described in the present invention, the injection mechanism includes an injection pipe arranged on the first mold assembly, a liquid filling port is opened on the injection pipe, a piston column is slidably arranged in the injection pipe, a seventh hydraulic cylinder is arranged on the workbench, and the piston rod of the seventh hydraulic cylinder is connected to the piston column.

[0025] The present invention also provides the following technical solution: a die-casting method of a die-casting device for processing square road spikes, comprising the following steps:

[0026] S1, injecting molten metal into the first mold assembly through one of the injection mechanisms, and the molten metal is die-cast between the inner cavity of the first mold assembly and the surface of the second mold assembly to form a prism-shaped shell with reserved holes and nail features;

[0027] S2. After the second mold assembly is folded up by the driving assembly, the second mold assembly is pulled out of the first mold assembly by the fifth hydraulic cylinder, and then the filler is injected into the prism-shaped shell by another injection mechanism. The filler is die-cast into a filler layer in the inner cavity of the prism-shaped shell.

[0028] The present invention has the following beneficial effects:

[0029] 1. The die-casting device and die-casting method for processing square road spikes are provided with a foldable prism-shaped second die assembly in a prism-shaped cavity formed by a fixed die and a movable die of a first die assembly. The prism-shaped shell can be formed by partially injecting molten metal between the first die assembly and the second die assembly, thereby solving the problem in the prior art that cast aluminum shell-type square road spikes are not convenient to produce by die-casting.

[0030] 2. The die-casting device and die-casting method for processing square road spikes can fold and withdraw the second die assembly after forming the prism-shaped shell, and then inject the filler. In this case, the prism-shaped shell and the filler layer can be integrally formed without first casting the prism-shaped shell and then filling the filler layer in separate steps. Moreover, after the prism-shaped shell is formed, the heat that has not been completely cooled can be used to make the prism-shaped shell and the filler layer part more tightly combined.

[0031] 3. The die-casting device and die-casting method for processing square road spikes, in order to further save the casting cost of square road spikes, make the prism-shaped shell thinner and the leaking part of the reserved filler layer smaller. The second mold assembly is not only set as a foldable prism-shaped shell, but also has an extended prism part, and the extended part can be stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic structural diagram of the die-casting device in the present invention.

[0033] Figure 2 It is a schematic diagram of the structure of the square road spike in the present invention.

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the square road spike of the present invention.

[0035] Figure 4 It is a schematic cross-sectional structural diagram of the mold mechanism in the present invention.

[0036] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0037] Figure 6 for Figure 4 A partial enlarged view of point B in the middle.

[0038] Figure 7 It is a schematic structural diagram of the second mold assembly when it is extended in the present invention.

[0039] Figure 8 It is a schematic diagram of the structure of the second mold assembly when folded in the present invention.

[0040] Fig. 9 It is a schematic diagram of the exploded structure of the second mold assembly in the present invention.

[0041] Fig.10 It is a schematic diagram of the exploded structure of the driving assembly in the present invention.

[0042] In the figure: 100, square spike; 110, prism-shaped shell; 120, filling material layer; 130, reserved hole; 140, nail part; 200, workbench; 300, mold mechanism; 310, first mold assembly; 311, fixed mold; 312, movable mold; 313, first hydraulic cylinder; 314, prism-shaped inner cavity; 315, protrusion; 316, nail-shaped inner cavity; 317, through hole; 320, second mold assembly; 321, lifting seat; 322, first support rod; 323, first template assembly; 3231, second support rod; 3232, first template; 3233, third support rod; 3234, fourth support rod; 3235, second template; 32 36. The third template; 3237. The fourth template; 324. The fifth support rod; 325. The second template assembly; 3251. The sixth support rod; 3252. The fifth template; 326. The driving assembly; 3261. The first slide rod; 3262. The second hydraulic cylinder; 3263. The first connecting rod; 3264. The second slide rod; 3265. The third hydraulic cylinder; 3266. The second connecting rod; 3267. The third slide rod; 3268. The fourth hydraulic cylinder; 3269. The third connecting rod; 330. The fifth hydraulic cylinder; 340. The sixth hydraulic cylinder; 400. The injection mechanism; 410. The injection pipe; 420. The liquid filling port; 430. The piston column; 440. The seventh hydraulic cylinder. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0044] For example, see Figure 1-Figure 10 A die casting device for processing square road spikes is used for die casting a square road spike 100. The die casting device for processing square road spikes includes a workbench 200. The square road spike 100 includes a prism-shaped shell 110. A filler layer 120 is arranged in the prism-shaped shell 110.

[0045] A mold mechanism 300 and two injection mechanisms 400 are arranged on the workbench 200. The mold mechanism 300 includes a first mold assembly 310 and a second mold assembly 320. Both injection mechanisms 400 are connected to the first mold assembly 310. The second mold assembly 320 is arranged in the first mold assembly 310.

[0046] Injecting molten metal into the first mold assembly 310 through one of the injection mechanisms 400, thereby die-casting the prism-shaped housing 110 between the first mold assembly 310 and the second mold assembly 320;

[0047] Injecting filler into the prism-shaped shell 110 through another injection mechanism 400, so as to die-cast a filler layer 120 in the prism-shaped shell 110;

[0048] The first mold assembly 310 includes a fixed mold 311, a movable mold 312 and a first hydraulic cylinder 313. The fixed mold 311 and the first hydraulic cylinder 313 are arranged on the workbench 200, and the movable mold 312 is arranged on the piston rod of the first hydraulic cylinder 313;

[0049] The workbench 200 is also provided with a fifth hydraulic cylinder 330 and two sixth hydraulic cylinders 340, the second mold assembly 320 is connected to the piston rod of the fifth hydraulic cylinder 330, and the piston rods of the two sixth hydraulic cylinders 340 extend into the first mold assembly 310;

[0050] Two reserved holes 130 are symmetrically provided on the prism-shaped shell 110, and a nail portion 140 is provided on the prism-shaped shell 110;

[0051] The inner cavities of the fixed mold 311 and the movable mold 312 are assembled to form a prism-shaped inner cavity 314, and the prism-shaped inner cavity 314 fits with the prism-shaped shell 110;

[0052] Two protrusions 315 are symmetrically arranged on the movable mold 312, and the two protrusions 315 are respectively matched with the two reserved holes 130;

[0053] A nail-shaped inner cavity 316 is defined in the fixed mold 311 , and the nail-shaped inner cavity 316 fits with the nail portion 140 .

[0054] In this embodiment, the square road spike 100 is a cast aluminum shell road spike, the prism-shaped shell 110 is made of aluminum alloy, the filling layer 120 filled inside can be made of resin or other materials, the reserved hole 130 is opened for installing the reflector, and the nail part 140 is used to wedge into the ground.

[0055] During processing, molten metal such as aluminum alloy can be first injected into the first mold assembly 310, and the molten metal forms the prism-shaped shell 110, the reserved hole 130 and the nail portion 140 between the connected prism-shaped inner cavity 314, the nail-shaped inner cavity 316, the two protrusions 315 and the surface of the second mold assembly 320. Then, fillers such as resin are injected into the prism-shaped shell 110 to form the filler layer 120.

[0056] Embodiment 2: This embodiment is an improvement on Embodiment 1. For details, please refer to Figure 1-Figure 10 The movable mold 312 is provided with a through hole 317, and the second mold assembly 320 includes a lifting seat 321 slidably disposed in the through hole 317, and four first support rods 322 are movably hinged on the lifting seat 321 through a hinge shaft, and a first template assembly 323 is disposed between two adjacent first support rods 322;

[0057] Four fifth support rods 324 are also movably hinged on the lifting seat 321 through hinge shafts, and a second template assembly 325 is arranged between two adjacent fifth support rods 324. The four first template assemblies 323 and the four second template assemblies 325 are arranged in a prism shape;

[0058] The first template assembly 323 includes a second support rod 3231 and two first templates 3232. The second support rod 3231 is movably hinged on the lifting seat 321 through a hinge shaft. One end of the two first templates 3232 is movably hinged on two adjacent first support rods 322 through a hinge shaft. The other ends of the two first templates 3232 are movably hinged on the second support rod 3231 through a hinge shaft.

[0059] A third support rod 3233 is slidably provided on the first support rod 322, a fourth support rod 3234 is slidably provided on the second support rod 3231, a second template 3235 is movably hinged to the third support rod 3233 via a hinge shaft, a third template 3236 is movably hinged to the fourth support rod 3234 via a hinge shaft, and the first template assembly 323 further includes a fourth template 3237, which is slidably provided on the second template 3235 and the third template 3236;

[0060] The second template assembly 325 includes a sixth support rod 3251 and two fifth templates 3252. The sixth support rod 3251 is movably hinged to the lifting seat 321 through a hinge shaft. One end of the two fifth templates 3252 is movably hinged to two adjacent fifth support rods 324 through a hinge shaft. The other ends of the two fifth templates 3252 are movably hinged to the sixth support rod 3251 through a hinge shaft.

[0061] The second mold assembly 320 further includes a driving assembly 326, which includes a first sliding rod 3261 slidably disposed on the lifting seat 321, and a second hydraulic cylinder 3262 is further disposed on the lifting seat 321, and a piston rod of the second hydraulic cylinder 3262 is connected to the first sliding rod 3261. The driving assembly 326 further includes a first connecting rod 3263, and both ends of the first connecting rod 3263 are respectively hinged to the first sliding rod 3261 and the first support rod 322 through a hinge shaft;

[0062] A second sliding rod 3264 is slidably disposed on the first sliding rod 3261, a third hydraulic cylinder 3265 is also disposed on the lifting seat 321, a piston rod of the third hydraulic cylinder 3265 is connected to the second sliding rod 3264, the driving assembly 326 further includes a second connecting rod 3266, two ends of the second connecting rod 3266 are respectively hinged to the second sliding rod 3264 and the third supporting rod 3233 through a hinge shaft;

[0063] A third sliding rod 3267 is slidably disposed on the second sliding rod 3264, a fourth hydraulic cylinder 3268 is further disposed on the lifting seat 321, a piston rod of the fourth hydraulic cylinder 3268 is connected to the third sliding rod 3267, the driving assembly 326 further includes a third connecting rod 3269, two ends of the third connecting rod 3269 are respectively hinged to the third sliding rod 3267 and the fifth supporting rod 324 through hinge shafts;

[0064] The injection mechanism 400 includes an injection pipe 410 arranged on the first mold assembly 310, a liquid filling port 420 is opened on the injection pipe 410, a piston column 430 is slidably arranged in the injection pipe 410, a seventh hydraulic cylinder 440 is arranged on the workbench 200, and the piston rod of the seventh hydraulic cylinder 440 is connected to the piston column 430.

[0065] In this embodiment, one of the injection pipes 410 extends to Figure 4 The inner cavity surface of the fixed mold 311 is shown in the figure, and the other injection pipe 410 extends to the deeper part of the inner cavity of the fixed mold 311. When the prism-shaped shell 110 is formed, a hole for the other injection pipe 410 will be left but it will not affect its use.

[0066] In the initial state, the fixed mold 311 and the movable mold 312 are in a spliced ​​state, and the second mold assembly 320 is in an extended state in the fixed mold 311. At this time, the four first support rods 322 are in a tilted state divided into four equal parts based on the lifting seat 321, forming four oblique sides of the prism, and the four second support rods 3231 are also in a tilted state divided into four equal parts based on the lifting seat 321.

[0067] by Figure 7 Take the front side of the middle prism as an example, at this time, from left to right, there are a first support rod 322, a first template 3232, a second support rod 3231, another first template 3232, and another first support rod 322. All of the above are on the same plane and can form an inclined surface of the prism.

[0068] The surface of the lifting seat 321 forms the upper surface of the prism. The four fifth support rods 324 and the four sixth support rods 3251 below are similarly based on the horizontal state of the lifting seat 321 being divided into four equal parts. A total of eight fifth templates 3252 form the lower surface of the prism. Figure 8 Fold in.

[0069] Furthermore, in order to save costs, the inner cavity of the prism-shaped shell 110 is made thinner, and the upper area of ​​the filler layer 120 leaking out after molding is smaller, and the second mold assembly 320 is set to be a prism that can extend downward. Figure 7 Taking the front side inclined surface of the middle prism as an example, from left to right, it is composed of a third support rod 3233, a second template 3235, a fourth template 3237, a third template 3236, a fourth support rod 3234, a second third template 3236, a second fourth template 3237, a second second template 3235, and a second third support rod 3233 to form an extended inclined surface of the prism.

[0070] At this time, molten metal is injected into the liquid filling port 420 on one of the injection pipes 410, and the piston rod 430 is pushed toward the mold mechanism 300 by the seventh hydraulic cylinder 440, so that the molten metal is injected into the first mold assembly 310. At this time, the molten metal will be die-cast to form a prism-shaped shell 110 with reserved holes 130 and nail parts 140, and the interior is hollow.

[0071] Then, the second mold assembly 320 is folded and pulled out from the through hole 317. Figure 5 and Figure 6As shown in the figure, the first slide bar 3261 is driven to move upward by the second hydraulic cylinder 3262, and eight first connecting rods 3263 are provided, four of which are connected to the four first support rods 322, and the other four are connected to the four second support rods 3231. The first slide bar 3261 can drive the four first support rods 322 and the four second support rods 3231 to deflect to one side of the lifting seat 321 through the transmission of the eight first connecting rods 3263, so that a total of eight first templates 3232 are as shown in the figure. Figure 8 Fold as shown in .

[0072] The second slide bar 3264 is driven upward by the third hydraulic cylinder 3265 at a speed greater than that of the second hydraulic cylinder 3262. There are eight second connecting rods 3266, four of which are connected to the four third support rods 3233, and the other four are connected to the four fourth support rods 3234. The second slide bar 3264 can drive the four third support rods 3233 to slide and be received in the four first support rods 322, and the four fourth support rods 3234 to slide and be received in the four second support rods 3231, respectively, through the transmission of the eight second connecting rods 3266. At this time, the second template 3235, the third template 3236 and the fourth template 3237 will slide and be received in the first template 3232, and at the same time, the third template 3236 and the second template 3235 will slide and move closer relative to the fourth template 3237.

[0073] The third slide bar 3267 is driven upward by the fourth hydraulic cylinder 3268, and eight third connecting rods 3269 are provided, four of which are connected to the four fifth support rods 324, and the other four are connected to the four sixth support rods 3251. The third slide bar 3267 can drive the four fifth support rods 324 and the four sixth support rods 3251 to deflect to one side of the lifting seat 321 through the transmission of the eight third connecting rods 3269, so that a total of eight fifth templates 3252 are Figure 8 Fold as shown in .

[0074] After the second mold assembly 320 is folded, the fifth hydraulic cylinder 330 drives the second mold assembly 320 to be pulled out of the through hole 317, and then another injection pipe 410 injects filler into the prism-shaped shell 110. Finally, the first hydraulic cylinder 313 drives the movable mold 312 to be demolded, and the sixth hydraulic cylinder 340 pushes the square spike 100 out.

[0075] For example 3, please refer to Figure 1-Figure 10 , a die-casting method for a die-casting device for processing square road spikes, comprising the following steps:

[0076] S1, injecting molten metal into the first mold assembly 310 through one of the injection mechanisms 400, and the molten metal is die-cast between the inner cavity of the first mold assembly 310 and the surface of the second mold assembly 320 to form a prism-shaped shell 110 with features of a reserved hole 130 and a nail portion 140;

[0077] S2. After the second mold assembly 320 is folded up by the driving assembly 326, the second mold assembly 320 is pulled out of the first mold assembly 310 by the fifth hydraulic cylinder 330, and then the filler is injected into the prism-shaped shell 110 by another injection mechanism 400. The filler is die-cast into a filler layer 120 in the inner cavity of the prism-shaped shell 110.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0079] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A die casting device for processing square road spikes, used for die casting square road spikes (100), characterized in that: The die casting device for processing square road spikes comprises a workbench (200), the square road spike (100) comprises a prism-shaped shell (110), and a filler layer (120) is arranged in the prism-shaped shell (110); A mold mechanism (300) and two injection mechanisms (400) are arranged on the workbench (200); the mold mechanism (300) comprises a first mold assembly (310) and a second mold assembly (320); the two injection mechanisms (400) are both connected to the first mold assembly (310); and the second mold assembly (320) is arranged inside the first mold assembly (310); Injecting molten metal into the first mold assembly (310) through one of the injection mechanisms (400), thereby die-casting the prism-shaped shell (110) between the first mold assembly (310) and the second mold assembly (320); The filler is injected into the prism-shaped shell (110) through another injection mechanism (400), so that the filler layer (120) is die-casted in the prism-shaped shell (110).

2. A die casting device for processing square road spikes according to claim 1, characterized in that: The first mold assembly (310) comprises a fixed mold (311), a movable mold (312) and a first hydraulic cylinder (313); the fixed mold (311) and the first hydraulic cylinder (313) are arranged on the workbench (200), and the movable mold (312) is arranged on the piston rod of the first hydraulic cylinder (313); A fifth hydraulic cylinder (330) and two sixth hydraulic cylinders (340) are also provided on the workbench (200); the second mold assembly (320) is connected to the piston rod of the fifth hydraulic cylinder (330); and the piston rods of the two sixth hydraulic cylinders (340) extend into the first mold assembly (310).

3. A die casting device for processing square road spikes according to claim 2, characterized in that: Two reserved holes (130) are symmetrically provided on the prism-shaped shell (110), and a nail portion (140) is provided on the prism-shaped shell (110); The inner cavities of the fixed mold (311) and the movable mold (312) form a prism-shaped inner cavity (314) after being assembled, and the prism-shaped inner cavity (314) fits with the prism-shaped shell (110); Two protrusions (315) are symmetrically arranged on the movable mold (312), and the two protrusions (315) are respectively matched with the two reserved holes (130); A nail-shaped inner cavity (316) is provided in the fixed mold (311), and the nail-shaped inner cavity (316) fits with the nail portion (140).

4. A die casting device for processing square road spikes according to claim 3, characterized in that: The movable mold (312) is provided with a through hole (317), the second mold assembly (320) comprises a lifting seat (321) slidably arranged in the through hole (317), four first support rods (322) are movably hinged on the lifting seat (321) via a hinge shaft, and a first template assembly (323) is arranged between two adjacent first support rods (322); The lifting seat (321) is also movably hinged with four fifth support rods (324) via hinge shafts, and a second template assembly (325) is arranged between two adjacent fifth support rods (324). The four first template assemblies (323) and the four second template assemblies (325) are arranged in a prism shape.

5. A die casting device for processing square spikes according to claim 4, characterized in that: The first template assembly (323) includes a second support rod (3231) and two first templates (3232), the second support rod (3231) is hinged to the lifting seat (321) through a hinge, one end of the two first templates (3232) is hinged to two adjacent first support rods (322) through a hinge, and the other ends of the two first templates (3232) are hinged to the second support rod (3231) through a hinge.

6. A die-casting device for processing square road spikes according to claim 5, characterized in that: A third support rod (3233) is slidably arranged on the first support rod (322), a fourth support rod (3234) is slidably arranged on the second support rod (3231), a second template (3235) is movably hinged to the third support rod (3233) via a hinge, a third template (3236) is movably hinged to the fourth support rod (3234) via a hinge, the first template assembly (323) further includes a fourth template (3237), and the fourth template (3237) is slidably arranged on the second template (3235) and the third template (3236).

7. A die-casting device for processing square road spikes according to claim 6, characterized in that: The second template assembly (325) includes a sixth support rod (3251) and two fifth templates (3252), the sixth support rod (3251) is hinged to the lifting seat (321) through a hinge, one end of the two fifth templates (3252) are respectively hinged to two adjacent fifth support rods (324) through a hinge, and the other ends of the two fifth templates (3252) are hinged to the sixth support rod (3251) through a hinge.

8. A die-casting device for processing square road spikes according to claim 7, characterized in that: The second mold assembly (320) further includes a driving assembly (326), the driving assembly (326) including a first sliding rod (3261) slidably disposed on the lifting seat (321), the lifting seat (321) also being provided with a second hydraulic cylinder (3262), the piston rod of the second hydraulic cylinder (3262) being connected to the first sliding rod (3261), the driving assembly (326) further including a first connecting rod (3263), the two ends of the first connecting rod (3263) being respectively hinged to the first sliding rod (3261) and the first supporting rod (322) through hinge shafts; A second sliding rod (3264) is slidably arranged on the first sliding rod (3261), a third hydraulic cylinder (3265) is also arranged on the lifting seat (321), a piston rod of the third hydraulic cylinder (3265) is connected to the second sliding rod (3264), the driving assembly (326) further comprises a second connecting rod (3266), two ends of the second connecting rod (3266) are respectively hinged to the second sliding rod (3264) and the third supporting rod (3233) through hinge shafts; A third sliding rod (3267) is slidably arranged on the second sliding rod (3264), and a fourth hydraulic cylinder (3268) is also arranged on the lifting seat (321). The piston rod of the fourth hydraulic cylinder (3268) is connected to the third sliding rod (3267). The driving assembly (326) also includes a third connecting rod (3269), and both ends of the third connecting rod (3269) are respectively hinged to the third sliding rod (3267) and the fifth support rod (324) through hinge shafts.

9. A die-casting device for processing square road spikes according to claim 8, characterized in that: The injection mechanism (400) comprises an injection pipe (410) arranged on the first mold assembly (310), a liquid filling port (420) is opened on the injection pipe (410), a piston column (430) is slidably arranged in the injection pipe (410), a seventh hydraulic cylinder (440) is arranged on the workbench (200), and a piston rod of the seventh hydraulic cylinder (440) is connected to the piston column (430).

10. A die-casting method for a die-casting device for processing square road spikes according to claim 9, characterized in that: The steps include: S1, injecting molten metal into the first mold assembly (310) through one of the injection mechanisms (400), and the molten metal is die-cast between the inner cavity of the first mold assembly (310) and the surface of the second mold assembly (320) to form a prism-shaped shell (110) having the features of a reserved hole (130) and a nail portion (140); S2. After the second mold assembly (320) is folded up by the driving assembly (326), the second mold assembly (320) is pulled out of the first mold assembly (310) by the fifth hydraulic cylinder (330), and then a filler is injected into the prism-shaped shell (110) by another injection mechanism (400). The filler is die-cast into a filler layer (120) in the inner cavity of the prism-shaped shell (110).

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