Sodium hexa-metaphosphate forming device, forming method and its application in the automotive field

Abstract

The present invention relates to the technical field of silicon phosphorus crystal molding devices, and discloses a silicon phosphorus crystal molding device, a molding method and applications thereof in the automotive field. The conveying unit is evenly provided with molding mold groups, the conveying unit is provided with a demoulding assembly matching the molding mold groups, the orientations of the first mold unit, the second mold unit and the third mold unit are the same as the conveying direction of the conveying unit, and the bracket is provided with a demoulder corresponding to the first mold unit, the second mold unit and the third mold unit one by one. When demoulding, each group of molding mold groups will successively undergo the demoulding operations of the first demoulding unit, the second demoulding unit, the third demoulding unit and the fourth demoulding unit, in combination with the wedge-shaped demoulding surface on the movable mold and the cleaning blowing force generated when the reset part on the demoulder is squeezed, so as to ensure that the silicon phosphorus crystal particles formed in the molding mold group are smoothly demoulded.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon-phosphorus crystal forming devices, and particularly to a silicon-phosphorus crystal forming device, a forming method and its application in the automotive field. Background Art

[0002] Currently, the existing silicon-phosphorus crystal forming method uses a flat die. Hemispheres with a diameter of 20 mm that are recessed into the steel plate are processed on two wide faces of a rectangular steel plate. When the two dies are combined, a complete hollow sphere can be formed. The silicon-phosphorus crystal liquid is poured into the die, and after cooling, a spherical silicon-phosphorus crystal product can be obtained.

[0003] In the silicon-phosphorus crystal forming device with the application number CN201010564562.0, sub-grooves and sub-holes are provided at corresponding positions on the movable template; a magnet is provided in the middle of the fixed template; a connection hole is provided at the inner end of the fixed template. The closing of the die set 7 is completed by the action of gravity. When the pouring hole of the die set is at the bottom, due to the action of gravity, the two movable templates will automatically combine with the fixed template. A strong magnet is added to the fixed template. When the die is closed, due to the action of magnetic force, when the die set moves to the position where the pouring hole is upward, the die set will not automatically open due to the action of gravity, thus ensuring that the die set can be normally poured.

[0004] However, in the actual process of forming silicon-phosphorus crystals, after the silicon-phosphorus crystal solution is poured into the die set, when the die set filled with the solution moves from the position after pouring the solution to the position where the pouring hole is downward, at this time, the two movable templates are not attracted to the fixed template. In this way, the solution inside the die set will inevitably flow out from the pouring hole, which will directly lead to the lack of solution inside the die set, resulting in the generation of bubbles inside, and defects will be formed during the curing process. The silicon-phosphorus crystal particles produced in this way will have local deficiencies and be incomplete, seriously affecting the forming quality of the silicon-phosphorus crystals. At the same time, after the silicon-phosphorus crystals are formed, the silicon-phosphorus crystal particles will adhere to the forming groove, and at the same time, there is no suitable demoulding angle when the die set is demoulded, resulting in difficult demoulding of the silicon-phosphorus crystal particles, and the silicon-phosphorus crystal particles cannot fall off, affecting the subsequent continuous pouring and forming.

[0005] Therefore, the present invention proposes a silicon-phosphorus crystal forming device, a forming method and its application in the automotive field to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a silicon-phosphorus crystal forming device, a forming method and its application in the automotive field to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: a silicon-phosphorus crystal forming device, including a conveying unit, on which a forming die set is uniformly installed, and a demolding assembly matching the forming die set is installed on the conveying unit. The forming die set includes a cooling seat, on the surface of which a first die unit, a second die unit, and a third die unit with the same structure are arranged side by side, and the orientations of the first die unit, the second die unit, and the third die unit are the same as the conveying direction of the conveying unit. The demolding assembly includes a bracket fixed to the front side of the bottom of the conveying unit, and demolding devices corresponding to the first die unit, the second die unit, and the third die unit are installed on the bracket;

[0008] The first die unit includes a mounting seat, in which a receiving groove is formed. A fixed die is fixed in the middle of the receiving groove. On both the left and right sides of the fixed die, movable dies are hinged and assembled through rotating shafts. The contact surface between each group of movable dies and the fixed die is set as a wedge-shaped demolding surface, and the normal line of each group of wedge-shaped demolding surfaces faces upward;

[0009] On each group of wedge-shaped demolding surfaces, semi-circular forming grooves are formed on the movable die and the fixed die, and pouring holes communicating with the semi-circular forming grooves are formed at the tops of the movable die and the fixed die. On the outer side of the top of each group of movable dies, a bearing plate is fixed, and a reset member is fixedly connected between the outer side wall of each group of movable dies and the inner side wall of the receiving groove.

[0010] Preferably, one-third of the fixed die is fixed on the front and rear side walls of the receiving groove. The bottom of the movable die is provided with a lifting lug, and the lifting lug is hinged and assembled on the front and rear side walls of the fixed die through a rotating shaft. The mounting seat is fixed on the top of the cooling seat. In the cooling seat, movable grooves corresponding to the fixed die and the two groups of movable dies are formed, and the movable grooves communicate with the receiving groove. A winding cooling channel is formed inside the cooling seat, and a coolant is filled in the cooling channel. An inlet and an outlet are fixed on the cooling seat, and control valves are installed on both the inlet and the outlet.

[0011] Preferably, the reset member includes a pressure-bearing rubber air bag fixed between the outer side wall of the movable die and the inner side wall of the receiving groove. The pressure-bearing rubber air bag is connected with a jet head through a guide pipe, and the jet head is fixed on the top of the bracket, and the jet direction of the jet head corresponds to the wedge-shaped demolding surface.

[0012] Preferably, the conveying unit includes a fixed frame, on the front side and the rear side of which a driving sprocket group and a driven sprocket group are respectively installed. The driving sprocket group and the driven sprocket group are assembled through chain drive. The driving sprocket group is connected with the output end of the motor. Fixed brackets are installed at the links of the left and right two groups of chains, and the cooling seat is installed on the tops of the left and right two groups of fixed brackets through fixing bolts.

[0013] Preferably, the demolding device includes a first demolding unit, a second demolding unit, a third demolding unit, and a fourth demolding unit that are integrally arranged, and the first demolding unit, the second demolding unit, the third demolding unit, and the fourth demolding unit are sequentially connected in order. Moreover, the first demolding unit, the second demolding unit, the third demolding unit, and the fourth demolding unit have the same structural composition, and each is composed of a first arc-shaped pressing plate, a second arc-shaped pressing plate, and a limiting plate.

[0014] Preferably, the outer sidewalls of the four groups of first arc-shaped pressing plates are all semi-circular, and the width dimensions of the first arc-shaped pressing plates on the first demolding unit, the second demolding unit, the third demolding unit, and the fourth demolding unit are in an arithmetic progression and increase sequentially. The second arc-shaped pressing plates on the first demolding unit, the second demolding unit, the third demolding unit, and the fourth demolding unit have the same size, and the limiting plates on the first demolding unit, the second demolding unit, the third demolding unit, and the fourth demolding unit have the same size, with a length of d, which is the same as the length of the movable mold.

[0015] Preferably, the horizontal line where the outer sidewall of the limiting plate is located is set as the mold closing line, the width of the limiting plate is the same as the distance between the two bearing plates, the horizontal line where the outer end of the second arc-shaped pressing plate is located is set as the first demolding line, the horizontal line where the outer end of the first arc-shaped pressing plate of the first demolding unit is located is set as the second demolding line, the horizontal line where the outer end of the first arc-shaped pressing plate of the second demolding unit is located is set as the third demolding line, the horizontal line where the outer end of the first arc-shaped pressing plate of the third demolding unit is located is set as the fourth demolding line, and the horizontal line where the outer end of the first arc-shaped pressing plate of the fourth demolding unit is located is set as the fifth demolding line.

[0016] Preferably, the movable mold is assembled on the fixed mold, the horizontal line where the inner sidewall of the bearing plate is located coincides with the mold closing line, and when the movable mold rotates to the outermost side around the rotating shaft, the horizontal line where the inner sidewall of the bearing plate is located coincides with the fifth demolding line.

[0017] The present invention discloses a method for forming sodium hexametaphosphate crystals, which is realized by using a sodium hexametaphosphate crystal forming device. The steps of the forming method are as follows:

[0018] S1: Pour the sodium hexametaphosphate crystal melt into the forming mold group through an external pouring device. When the conveying unit works, it drives the forming mold group to be conveyed orderly. During the process of the forming mold group being conveyed from front to back by the conveying unit, the solution in the forming mold group is cooled and formed under the heat conduction of the cooling seat. Since the wedge-shaped demolding surface is in an inclined upward state, the sodium hexametaphosphate crystals in the semi-circular forming groove are cooled and formed on the movable mold.

[0019] S2: As the conveying unit conveys, during the process of the molding die set being conveyed from the rear end to the downward inverted state, the reset member continuously presses on the movable die to ensure the tight fit between the movable die and the fixed die, preventing the uncooled and molded solution inside the molding die set from leaking.

[0020] S3: As the conveying unit conveys, during the process of the inverted molding die set being conveyed from the rear end to the front side, the silicon-phosphorus crystal particles in the semi-circular molding groove gradually solidify and form. When the molding die set contacts the demolding device, the demolding device has an extrusion effect on the molding die set, prompting the movable die to rotate around the rotating shaft against the resilience of the reset member. At this time, the wedge-shaped demolding surface faces downward and has a smaller horizontal angle. Subsequently, the silicon-phosphorus crystal particles formed inside the semi-circular molding groove on the movable die are more likely to naturally fall under the action of gravity, and there is no demolding resistance during demolding.

[0021] S4: As the conveying unit conveys, after demolding, the molding die set disengages from the demolding device, and the reset member pushes the movable die to reset. Repeat the above operations to achieve a new pouring and molding operation.

[0022] If the described silicon-phosphorus crystal forming method is applied in the automotive field, in the direction of exhaust gas purification treatment, since silicon-bonded silicon carbide (Si—SiC) materials are used for the exhaust gas purification treatment of diesel vehicles, this material can reduce the Young's modulus of SiC, prevent the generation and expansion of cracks during regeneration, thus having higher thermal shock resistance, reduce the sintering temperature of SiC, increase the adjustability of the pore structure, maintain high mechanical strength and heat resistance; maintain excellent acid corrosion resistance.

[0023] The technical effects and advantages of the present invention:

[0024] 1. During the process of the molding die set being conveyed from the rear end to the downward inverted state in the present invention, the reset member continuously presses on the movable die to ensure the tight fit between the movable die and the fixed die, preventing the uncooled and molded solution inside the molding die set from leaking.

[0025] 2. When the molding die set contacts the demolding device in the present invention, the demolding device has an extrusion effect on the molding die set, prompting the movable die to rotate around the rotating shaft against the resilience of the reset member. At this time, the wedge-shaped demolding surface faces downward and has a smaller horizontal angle. Subsequently, the silicon-phosphorus crystal particles formed inside the semi-circular molding groove on the movable die are more likely to naturally fall under the action of gravity, and there is no demolding resistance during demolding. At the same time, after the pressure-bearing rubber air bag is squeezed, the gas inside will be introduced into the jet head through the air duct, and then sprayed into the inside of the wedge-shaped demolding surface to accelerate the shedding of the silicon-phosphorus crystal particles. At the same time, the high-pressure gas ejected is used to blow towards the semi-circular molding groove to facilitate the blowing and cleaning of the semi-circular molding groove.

[0026] 3. When each forming mold set in the present invention is demolded, it will successively undergo the demolding operations of four demolding units: the first demolding unit, the second demolding unit, the third demolding unit, and the fourth demolding unit, ensuring the smoothness of the forming mold set during demolding. Combined with the wedge-shaped demolding surface on the movable mold and the cleaning and blowing force generated when the reset member on the demolder is squeezed, it can ensure that the silicon-phosphorus crystal particles formed in the forming mold set are successfully demolded, avoiding the situation of difficult demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the whole of the present invention from the first perspective;

[0028] Figure 2 is a schematic structural diagram of the whole of the present invention from the second perspective;

[0029] Figure 3 is a schematic partial structural diagram of the present invention;

[0030] Figure 4 is a schematic structural diagram of the forming mold set of the present invention;

[0031] Figure 5 is a schematic structural diagram of the first mold unit of the present invention in the mold-closing state;

[0032] Figure 6 is a schematic structural diagram of the first mold unit of the present invention in the mold-opening state;

[0033] Figure 7 is a schematic structural diagram of the demolder of the present invention.

[0034] In the figure: 10, conveying unit; 11, driving sprocket set; 12, driven sprocket set; 13, chain; 14, motor; 15, fixed support plate; 20, forming mold set; 21, cooling seat; 22, first mold unit; 23, second mold unit; 24, third mold unit; 25, mounting seat; 26, fixed mold; 27, rotating shaft; 28, movable mold; 29, wedge-shaped demolding surface; 210, semi-circular forming groove; 211, pouring hole; 212, bearing plate; 213, receiving groove; 214, reset member; 30, demolding assembly; 31, bracket; 32, demolder; 33, first demolding unit; 34, second demolding unit; 35, third demolding unit; 36, fourth demolding unit; 37, first arc-shaped pressing plate; 38, second arc-shaped pressing plate; 39, limiting plate; 310, mold-closing line; 311, first demolding line; 312, second demolding line; 313, third demolding line; 314, fourth demolding line; 315, fifth demolding line. DETAILED DESCRIPTION OF THE INVENTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figures 1 to 7 shown, this embodiment discloses a silicon-phosphorus crystal forming device, which includes a conveying unit 10. A forming die set 20 is uniformly installed on the conveying unit 10. A demolding assembly 30 matching the forming die set 20 is installed on the conveying unit 10. During actual use, the silicon-phosphorus crystal melt is poured into the forming die set 20 through an external pouring device. When the conveying unit 10 works, it drives the forming die set 20 to be conveyed orderly. During this process, natural cooling and forming are realized. And after the silicon-phosphorus crystal particles are solidified and formed, under the action of the demolding assembly 30, they will fall naturally after demolding and will not get stuck.

[0037] Please refer to Figures 1 - 4 , the forming die set 20 includes a cooling seat 21. The first die unit 22, the second die unit 23, and the third die unit 24 with the same structure are arranged side by side on the surface of the cooling seat 21. And the orientations of the first die unit 22, the second die unit 23, and the third die unit 24 are the same as the conveying direction of the conveying unit 10. The demolding assembly 30 includes a bracket 31 fixed to the front side of the bottom of the conveying unit 10. And demolding devices 32 corresponding to the first die unit 22, the second die unit 23, and the third die unit 24 one by one are installed on the bracket 31.

[0038] During use, the forming die set 20 is linearly arranged on the conveying unit 10. Therefore, pouring can be realized orderly. And there are three die units on each forming die set at the same time, which greatly improves the production efficiency of the silicon-phosphorus crystal particles. And the orientation of the die unit is the same as the conveying direction of the conveying unit 10, which is convenient for the silicon-phosphorus crystal particles inside to be quickly demolded under the cooperation of the demolding device 32 after being formed.

[0039] Please refer to Figures 4 - 6, the first die unit 22 includes a mounting base 25. A receiving groove 213 is formed in the mounting base 25. A fixed die 26 is fixed in the middle of the receiving groove 213. Movable dies 28 are hingedly assembled on both the left and right sides of the fixed die 26 through rotating shafts 27. The contact surfaces between each group of movable dies 28 and the fixed die 26 are arranged as wedge-shaped demolding surfaces 29, and the normal lines of each group of wedge-shaped demolding surfaces 29 face upward. Semi-circular forming grooves 210 are formed in both the movable dies 28 and the fixed die 26 on each group of wedge-shaped demolding surfaces 29. Pouring holes 211 communicating with the semi-circular forming grooves 210 are formed at the tops of the movable dies 28 and the fixed die 26. Bearing plates 212 are fixed on the outer sides of the tops of each group of movable dies 28. Resetting members 214 are fixedly connected between the outer side walls of each group of movable dies 28 and the inner side walls of the receiving groove 213.

[0040] After the semi-circular forming grooves 210 between the fixed die 26 and the movable dies 28 coincide, a circular receiving groove is formed. Adjacent receiving grooves are communicated through diversion grooves, which facilitates the flow of the solution along the diversion grooves between the semi-circular forming grooves 210 when pouring the solution, ensuring the filling fullness of the solution inside the semi-circular forming grooves 210, preventing the appearance of air bubbles and affecting the forming quality of the silicon-phosphorus crystal particles. With the conveyance of the conveying unit 10, during the process of the forming die set 20 being conveyed from the rear end to the downward inverted state, the resetting member 214 continuously presses the movable die 28 to ensure the tight fit between the movable die 28 and the fixed die 26, preventing the uncooled and formed solution inside the forming die set 20 from leaking.

[0041] Please refer to Figure 5 , the 1 / 3 position of the fixed die 26 is fixed on the front and rear side walls of the receiving groove 213. The bottom of the movable die 28 is provided with a lug, and the lug is hingedly assembled on the front and rear side walls of the fixed die 26 through a rotating shaft 27. The mounting base 25 is fixed on the top of the cooling base 21. An activity groove corresponding to the fixed die 26 and the two groups of movable dies 28 is formed in the cooling base 21, and the activity groove is communicated with the receiving groove 213. A meandering cooling channel is formed inside the cooling base 21, and a coolant is filled in the cooling channel. Inlet and outlet ports are fixed on the cooling base 21, and control valves are installed on both the inlet and outlet ports, which facilitates the introduction of the coolant into the cooling base 21 through the inlet port, and realizes the heat conduction cooling of the forming die set 20 after the silicon-phosphorus crystal solution is introduced into the forming die set 20.

[0042] The reset member 214 includes a pressure-bearing rubber air bag fixed between the outer side wall of the movable mold 28 and the inner side wall of the receiving groove 213. The pressure-bearing rubber air bag is connected to a jet head through an air duct. The jet head is fixed on the top of the bracket 31, and the jet direction of the jet head corresponds to the wedge-shaped demolding surface 29. During actual use, when the molding die set 20 contacts the demolding device 32, the demolding device 32 has an extrusion effect on the molding die set 20, causing the movable mold 28 to rotate around the rotating shaft 27 against the resilience of the reset member 214. At this time, the wedge-shaped demolding surface 29 faces downward and has a smaller horizontal angle. Subsequently, the sodium polyphosphate particles formed in the upper semi-circular forming groove 210 of the movable mold 28 are more likely to fall naturally under the action of gravity, and there is no demolding resistance during demolding. At the same time, after the pressure-bearing rubber air bag is squeezed, the gas inside will be introduced into the jet head through the air duct, and then sprayed into the wedge-shaped demolding surface 29 to accelerate the shedding of the sodium polyphosphate particles. At the same time, the high-pressure gas ejected is blown towards the semi-circular forming groove 210 to facilitate the blowing and cleaning of the semi-circular forming groove 210.

[0043] The conveying unit 10 includes a fixed frame. The front side and the rear side of the fixed frame are respectively provided with a driving sprocket group 11 and a driven sprocket group 12. The driving sprocket group 11 and the driven sprocket group 12 are assembled by chain drive through a chain 13. The driving sprocket group 11 is connected to the output end of the motor 14. Fixed brackets 15 are installed at the links of the left and right chains 13. The cooling seat 21 is installed on the tops of the left and right fixed brackets 15 through fixing bolts. When the motor 14 works, it drives the driving sprocket group 11 to rotate. Through the drive of the chain 13, the molding die set 20 can be driven to rotate orderly, which is convenient for corresponding pouring one by one. At the same time, during the conveying process, the molding die set 20 can be cooled and formed.

[0044] Please refer to Figure 3 and Figure 7, the demolding device 32 includes a first demolding unit 33, a second demolding unit 34, a third demolding unit 35, and a fourth demolding unit 36 that are integrally arranged. The first demolding unit 33, the second demolding unit 34, the third demolding unit 35, and the fourth demolding unit 36 are sequentially connected in order. The first demolding unit 33, the second demolding unit 34, the third demolding unit 35, and the fourth demolding unit 36 have the same structural composition and are all composed of a first arc-shaped pressing plate 37, a second arc-shaped pressing plate 38, and a limiting plate 39. The first demolding unit 33, the second demolding unit 34, the third demolding unit 35, and the fourth demolding unit 36 are integrally formed and arranged along the conveying direction of the conveying unit 10. In this way, when the molding die set 20 contacts the first demolding unit 33, the second demolding unit 34, the third demolding unit 35, and the fourth demolding unit 36 successively, four demolding processes can be performed to ensure that the silicon-phosphorus crystal particles inside the molding die set 20 are demolded with the cooperation of the demolding device 32. When the molding die set 20 passes through the first arc-shaped pressing plate 37 and contacts the second arc-shaped pressing plate 38, the movable die 28 can form vibrations at this time, which can accelerate the shedding of the silicon-phosphorus crystal particles.

[0045] The outer sidewalls of the four groups of first arc-shaped pressing plates 37 are all semi-circular. In this way, when the two groups of movable dies 28 on the molding die set 20 contact the first arc-shaped pressing plate 37, the two groups of movable dies 28 can be urged to rotate away from each other under the extrusion of the arc surface, that is, the movable die 28 is urged to separate from the fixed die 26. In this way, the silicon-phosphorus crystal particles will fall from the movable die 28 to complete the demolding operation.

[0046] Please refer to Figure 7, the width dimensions of the first arc-shaped pressing plates 37 on the first demolding unit 33, the second demolding unit 34, the third demolding unit 35 and the fourth demolding unit 36 are in an arithmetic progression and increase successively. The dimensions of the second arc-shaped pressing plates 38 on the first demolding unit 33, the second demolding unit 34, the third demolding unit 35 and the fourth demolding unit 36 are the same. Also, the dimensions of the limiting plates 39 on the first demolding unit 33, the second demolding unit 34, the third demolding unit 35 and the fourth demolding unit 36 are the same, with a length of d, which is the same as the length of the movable mold 28. The horizontal line where the outer sidewall of the limiting plate 39 is located is set as the mold closing line 310. The width of the limiting plate 39 is the same as the distance between the two sets of bearing plates 212. The horizontal line where the outer end of the second arc-shaped pressing plate 38 is located is set as the first demolding line 311. The horizontal line where the outer end of the first arc-shaped pressing plate 37 of the first demolding unit 33 is located is set as the second demolding line 312. The horizontal line where the outer end of the first arc-shaped pressing plate 37 of the second demolding unit 34 is located is set as the third demolding line 313. The horizontal line where the outer end of the first arc-shaped pressing plate 37 of the third demolding unit 35 is located is set as the fourth demolding line 314. The horizontal line where the outer end of the first arc-shaped pressing plate 37 of the fourth demolding unit 36 is located is set as the fifth demolding line 315. The movable mold 28 is assembled on the fixed mold 26. The horizontal line where the inner sidewall of the bearing plate 212 is located coincides with the mold closing line 310. When the movable mold 28 rotates around the rotating shaft 27 to the outermost side, the horizontal line where the inner sidewall of the bearing plate 212 is located coincides with the fifth demolding line 315.

[0047] During actual use, the molding die set 20 will first come into contact with the first demolding unit 33. First, the two sets of movable molds 28 are pressed through the first arc-shaped pressing plates 37 to complete the first demolding operation. At this time, the inner sidewalls of the two sets of movable molds 28 are on the second demolding line 312. As the molding die set 20 is conveyed, the two sets of movable molds 28 will disengage from the first arc-shaped pressing plates 37 and directly flip and lean against the second arc-shaped pressing plates 38. In this way, the vibration of the movable molds 28 itself is achieved by the impact when the movable molds 28 rotate onto the second arc-shaped pressing plates 38, facilitating the shedding of the sodium hexametaphosphate particles. At this time, the inner sidewalls of the two sets of movable molds 28 are on the first demolding line 311. Subsequently, as the molding die set 20 is conveyed again, the movable molds 28 rotate and lean against the outer sidewalls of the limiting plates 39. At this time, the inner sidewalls of the two sets of movable molds 28 are in contact with the outer sidewalls of the limiting plates 39, and the inner sidewalls of the two sets of movable molds 28 are on the mold closing line 310. Since d is the same as the length of the movable mold 28, when the movable mold 28 is in contact with the limiting plate 39, it will not cause interference between the second demolding unit 34, the third demolding unit 35, the fourth demolding unit 36 and this set of molding die set 20, ensuring the stepped demolding operation of this set of molding die set 20.

[0048] After the demolding operation of the first demolding unit 33, the molding die set 20 will be extruded and demolded with the second demolding unit 34, the third demolding unit 35, and the fourth demolding unit 36 ​​in sequence, and each time it contacts the demolding unit, the eversion angle of the movable mold 28 becomes larger, which can accelerate the shedding of the silicon phosphorus crystal particles. At the same time, each time the movable mold 28 and the first arc extrusion plate 37 are separated and fall on the second arc extrusion plate 38, the impact force of the second arc extrusion plate 38 on the movable mold 28 can be used to make the adhesion and engagement in the movable mold 28 The silicon phosphorus crystal particles can be fallen off. Therefore, when demolding, each group of molding mold sets 20 will pass through the demolding operations of the first demolding unit 33, the second demolding unit 34, the third demolding unit 35, and the fourth demolding unit 36 ​​in sequence to ensure the smoothness of the molding mold set 20 during demolding. In combination with the wedge-shaped demolding surface 29 on the movable mold 28 and the cleaning blowing force generated when the reset part 214 on the demolding device 32 is squeezed, it can ensure that the silicon phosphorus crystal particles formed in the molding mold set 20 are demolded smoothly to avoid the difficulty of demolding.

[0049] The present invention discloses a silicon phosphorus crystal forming method, which is implemented by using the silicon phosphorus crystal forming device as described above, and is characterized in that the forming method comprises the following steps:

[0050] S1: The silicon phosphorus crystal melt is poured into the molding die set 20 through an external pouring device. When the conveying unit 10 is working, the molding die set 20 is driven to be transported in an orderly manner. During the conveying process of the molding die set 20 from front to back on the conveying unit 10, the solution in the molding die set 20 is cooled and formed under the heat conduction of the cooling seat 21. Since the wedge-shaped demoulding surface 29 is in an inclined upward state, the silicon phosphorus crystal in the semicircular molding groove 210 is cooled and formed on the movable mold 28;

[0051] S2: As the conveying unit 10 is conveyed, during the process of the molding die set 20 being conveyed from the rear end to the downward inverted state, the reset member 214 continuously presses the movable die 28 to ensure the tight fit between the movable die 28 and the fixed die 26, and prevents the uncooled molding solution inside the molding die set 20 from leaking;

[0052] S3: As the conveying unit 10 conveys, in the process of conveying the inverted molding die set 20 from the rear end to the front side, the silicon phosphorus crystal particles in the semicircular molding groove 210 are gradually solidified and formed. When the molding die set 20 and the demolding device 32 are in contact, the demolding device 32 has an extrusion effect on the molding die set 20, prompting the movable mold 28 to overcome the resilience of the reset member 214 and rotate around the rotating shaft 27. At this time, the wedge-shaped demolding surface 29 faces downward and the horizontal angle is smaller. Then, the silicon phosphorus crystal particles formed in the semicircular molding groove 210 on the movable mold 28 are more likely to fall naturally under the action of gravity, and there is no demolding resistance during demolding;

[0053] S4: As the conveying unit 10 conveys, the molded die set 20 after demolding disengages from the demolding device 32, and the reset member 214 pushes the movable die 28 to reset. By repeating the above operations, a new casting and molding operation is achieved.

[0054] The silicon-phosphorus crystal molding method as described above can be applied in the automotive field, and can be applied in the direction of exhaust gas purification treatment. Since the silicon-bonded silicon carbide (Si—SiC) material is used for the exhaust gas purification treatment of diesel vehicles, this material can reduce the Young's modulus of SiC, prevent the generation and expansion of cracks during regeneration, thereby having higher thermal shock resistance, reduce the sintering temperature of SiC, increase the adjustability of the pore structure, and maintain high mechanical strength and heat resistance; maintain excellent acid corrosion resistance; it can also be applied to lightweight materials. In automobile manufacturing, silicon-phosphorus crystal particles can be used as part of lightweight materials; it can also be applied to flame retardant materials. Silicon-phosphorus crystal particles are also used to prepare high flame retardant ABS automotive interior parts. This material has good flame retardancy, and the manufactured automotive interior parts are of reliable quality and have anti-aging characteristics; at the same time, it is also widely used in sound insulation, shock absorption and heat-resistant materials. Silicon-phosphorus crystal particles are also used to manufacture sound insulation, shock absorption and heat-resistant ABS composite materials for automotive interiors. This material can increase the heat-resistant temperature and has the effect of sound insulation and shock absorption.

[0055] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A silicon phosphorus crystal forming device, comprising a conveying unit (10), characterized in that: The conveying unit (10) is evenly mounted with a molding die set (20), and a demoulding assembly (30) matching the molding die set (20) is mounted on the conveying unit (10); the molding die set (20) comprises a cooling seat (21), and a first mold unit (22), a second mold unit (23) and a third mold unit (24) having the same structure are mounted side by side on the surface of the cooling seat (21); the orientation of the first mold unit (22), the second mold unit (23) and the third mold unit (24) is the same as the conveying direction of the conveying unit (10); the demoulding assembly (30) comprises a bracket (31) fixed to the front side of the bottom of the conveying unit (10), and a demoulder (32) corresponding to the first mold unit (22), the second mold unit (23) and the third mold unit (24) is mounted on the bracket (31); The first mold unit (22) comprises a mounting seat (25), a receiving groove (213) is formed on the mounting seat (25), a fixed mold (26) is fixed in the middle of the receiving groove (213), and movable molds (28) are hingedly assembled on the left and right sides of the fixed mold (26) via a rotating shaft (27), and the contact surface between each group of the movable mold (28) and the fixed mold (26) is set as a wedge-shaped demoulding surface (29), and the normal of each group of wedge-shaped demoulding surfaces (29) faces upward; Each set of wedge-shaped demoulding surfaces (29) is provided with a semicircular forming groove (210) opened on the movable mold (28) and the fixed mold (26), and a pouring hole (211) connected to the semicircular forming groove (210) is opened on the top of the movable mold (28) and the fixed mold (26), a pressure plate (212) is fixed on the outer side of the top of each set of movable molds (28), and a reset member (214) is fixedly connected between the outer side wall of each set of movable molds (28) and the inner side wall of the receiving groove (213); The demoulder (32) comprises a first demoulding unit (33), a second demoulding unit (34), a third demoulding unit (35) and a fourth demoulding unit (36) which are arranged in an integrated manner, and the first demoulding unit (33), the second demoulding unit (34), the third demoulding unit (35) and the fourth demoulding unit (36) are connected in sequence, and the first demoulding unit (33), the second demoulding unit (34), the third demoulding unit (35) and the fourth demoulding unit (36) have the same structural composition, and are all composed of a first arc-shaped extrusion plate (37), a second arc-shaped extrusion plate (38) and a limit plate (39); The outer side walls of the four groups of the first arc-shaped extrusion plates (37) are all semicircular, and the widths of the first arc-shaped extrusion plates (37) on the first demoulding unit (33), the second demoulding unit (34), the third demoulding unit (35) and the fourth demoulding unit (36) are equidistantly distributed and increase in sequence, the second arc-shaped extrusion plates (38) on the first demoulding unit (33), the second demoulding unit (34), the third demoulding unit (35) and the fourth demoulding unit (36) are of the same size, and the limiting plates (39) on the first demoulding unit (33), the second demoulding unit (34), the third demoulding unit (35) and the fourth demoulding unit (36) are of the same size, with a length d, which is the same as the length of the movable mold (28).

2. The silicon-phosphorus crystal forming device according to claim 1, characterized in that: One third of the fixed mold (26) is fixed on the front and rear side walls of the receiving groove (213), a lifting lug is provided at the bottom of the movable mold (28), and the lifting lug is hingedly assembled on the front and rear side walls of the fixed mold (26) through a rotating shaft (27), and the mounting seat (25) is fixed on the top of the cooling seat (21), and the cooling seat (21) is provided with movable grooves corresponding to the fixed mold (26) and two groups of movable molds (28), and the movable grooves are connected to the receiving groove (213), and a winding cooling channel is provided inside the cooling seat (21), and the cooling channel is filled with coolant, and a liquid inlet and a liquid outlet are fixed on the cooling seat (21), and control valves are installed on the liquid inlet and the liquid outlet.

3. The silicon phosphorus crystal forming device according to claim 2, characterized in that: The reset member (214) comprises a pressure-bearing rubber air bag fixed between the outer wall of the movable mold (28) and the inner wall of the receiving groove (213), and the pressure-bearing rubber air bag is connected to an air nozzle via an air guide tube, and the air nozzle is fixed to the top of the bracket (31), and the air jet direction of the air nozzle corresponds to the wedge-shaped demoulding surface (29).

4. The silicon-phosphorus crystal forming device according to claim 1, characterized in that: The conveying unit (10) includes a fixed frame, and a driving sprocket group (11) and a driven sprocket group (12) are respectively installed on the front and rear sides of the fixed frame, and the driving sprocket group (11) and the driven sprocket group (12) are assembled through a chain (13) transmission, the driving sprocket group (11) and the output end of the motor (14) are connected, and fixed support plates (15) are installed at the chain links on the left and right groups of chains (13), and the cooling seat (21) is installed on the top of the left and right groups of fixed support plates (15) through fixing bolts.

5. The silicon-phosphorus crystal forming device according to claim 1, characterized in that: The horizontal line where the outer side wall of the limiting plate (39) is located is set as the mold joining line (310), the width of the limiting plate (39) is the same as the distance between the two groups of pressure plates (212), the horizontal line where the outer end of the second arc-shaped extrusion plate (38) is located is set as the first demoulding line (311), the horizontal line where the outer end of the first arc-shaped extrusion plate (37) of the first demoulding unit (33) is located is set as the second demoulding line (312), the horizontal line where the outer end of the first arc-shaped extrusion plate (37) of the second demoulding unit (34) is located is set as the third demoulding line (313), the horizontal line where the outer end of the first arc-shaped extrusion plate (37) of the third demoulding unit (35) is located is set as the fourth demoulding line (314), and the horizontal line where the outer end of the first arc-shaped extrusion plate (37) of the fourth demoulding unit (36) is located is set as the fifth demoulding line (315).

6. The silicon-phosphorus crystal forming device according to claim 5, characterized in that: The movable mold (28) is assembled on the fixed mold (26), and the horizontal line of the inner wall of the pressure plate (212) coincides with the mold joining line (310). When the movable mold (28) rotates to the outermost side around the rotating shaft (27), the horizontal line of the inner wall of the pressure plate (212) coincides with the fifth demoulding line (315).

7. A method for forming a silicon-phosphorus crystal, implemented by using the silicon-phosphorus crystal forming device as claimed in claim 6, characterized in that: The steps of the molding method are: S1: pouring silicon phosphorus crystal melt into the molding die set (20) through an external pouring device, and when the conveying unit (10) is working, the molding die set (20) is driven to be transported in an orderly manner. During the process of the molding die set (20) being transported from front to back on the conveying unit (10), the solution in the molding die set (20) is cooled and formed under the heat conduction effect of the cooling seat (21). Since the wedge-shaped demoulding surface (29) is in an inclined upward state, the silicon phosphorus crystal in the semicircular molding groove (210) is cooled and formed on the movable mold (28); S2: As the conveying unit (10) is conveyed, during the process of the molding die set (20) being conveyed from the rear end to the downward inverted state, the reset member (214) continuously presses the movable die (28) to ensure a tight fit between the movable die (28) and the fixed die (26), thereby preventing the uncooled molding solution inside the molding die set (20) from leaking; S3: As the conveying unit (10) conveys the inverted molding die set (20) from the rear end to the front side, the silicon phosphorus crystal particles in the semicircular molding groove (210) are gradually solidified and formed. When the molding die set (20) and the demoulder (32) are in contact, the demoulder (32) exerts an extrusion effect on the molding die set (20), prompting the movable mold (28) to overcome the resilience of the reset member (214) and rotate around the rotating shaft (27). At this time, the wedge-shaped demoulding surface (29) faces downward and the horizontal angle is smaller. Then, the silicon phosphorus crystal particles formed inside the semicircular molding groove (210) on the movable mold (28) are more likely to fall naturally under the action of gravity, and there is no demoulding resistance during demoulding; S4: As the conveying unit (10) conveys, the demoulding mold set (20) is separated from the demoulding device (32), and the reset member (214) pushes the movable mold (28) to reset, and the above operation is repeated to achieve a new casting operation.

8. The silicon phosphorus crystal forming method as claimed in claim 7 is used in the automotive field.

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