CN117358877A - Die casting process for mobile phone camera ornament - Google Patents

Abstract

The invention discloses a die casting process of a mobile phone camera decorating part, wherein eighteen spark lines are reserved on the product rubber position surfaces of an upper die and a lower die, one hundred twenty numbers of coarse sand is sprayed on the parting surfaces of a die core, a common die casting release agent is changed into a silicon-free release agent, sand spraying treatment is carried out on all parting surfaces of a front die core and a rear die core, and when the upper die and the lower die are designed, all product appearance surfaces can only be reserved for finish machining by 0.1-0.15, so that sand holes and matte of the decorating part meet the required requirements, finally, the decorating part is processed by a die casting device, cooled and demoulded after being formed, thereby greatly reducing the original plate cost and processing cost, improving the product quality, and solving the problems of difficult forming, product compactness and sand hole abundance of pure aluminum die casting; and the product is easy to be deformed by sticking a mould, and the matte surface cannot meet the requirements, so that the required plate cost and the processing cost are high.

Description

Die casting process for mobile phone camera ornament

Technical Field

The invention relates to the technical field of decoration die casting, in particular to a die casting process for a mobile phone camera decoration.

Background

The die casting process is characterized in that high pressure is applied to molten metal by utilizing the inner cavity of a die, the die is usually processed by using alloy with higher strength, the process is somewhat similar to injection molding, and the mobile phone camera ornament can be produced by adopting a die casting processing mode.

All mobile phone camera hardware decoration in the present trade all adopt pure aluminum plate to use CNC to process once more and come out, just so increased material cost and CNC processing cost, discover after market investigation: the same industry generally considers that: 1. the pure aluminum die casting has the problems of difficult molding, product density failure and sand hole multiple problems; 2. the die sticking deformation of the product cannot be solved; 3. the matte color of the high-gloss surface can not meet the requirements of customers; the pure aluminum die casting processed by die casting has the advantages of high plate cost and processing cost, poor quality of processed products and certain defects.

Therefore, we propose a die casting process for the mobile phone camera ornament so as to solve the problems set forth in the above.

Disclosure of Invention

The invention aims to provide a die casting process for a mobile phone camera decorating part, which aims to solve the problems of difficult molding, product density failure and sand hole increase in pure aluminum die casting; and the product is easy to be deformed by sticking a mould, and the matte surface cannot meet the requirements, so that the required plate cost and the processing cost are high.

In order to achieve the above purpose, the present invention provides the following technical solutions: a die casting process of a mobile phone camera ornament comprises the following steps:

step one: the product rubber surface of the upper die and the lower die is reserved with eighteen spark lines; spraying one hundred twenty-number coarse sand on the parting surface of the die core; the common die casting release agent is changed into the silicon-free release agent; sand blasting treatment is carried out on all parting surfaces of the front mold core and the rear mold core, 0.1-0.15 of all product appearance surfaces can be reserved for finish machining when the upper mold and the lower mold are designed, and a die casting device is started for machining;

step two: when the die casting device is used, the air cylinder is started, the air cylinder drives the upper die and the fixed sleeve to press down, the fixed sleeve drives the connecting plate and the sliding plate to move downwards, at the moment, the sliding plate moves in the sliding rail, the connecting plates at two sides are convenient to vertically move downwards, the preliminary guiding effect on the upper die is achieved, then the tooth block is matched with the gear, the sliding plate can drive the gear to rotate, the gear drives the screw rod to rotate, the limiting block slides in the limiting groove, the limiting block limits the thread sleeve, the thread sleeve moves towards the positioning plate, and the thread sleeve extrudes and pushes the spring and the sliding sleeve, so that the sliding sleeve drives the positioning plate to approach the upper die;

step three: the positioning strips on the positioning plate are clamped into the positioning grooves, at the moment, the positioning strips on the two sides further guide the upper die, so that the offset of the upper die is reduced, when the positioning plate presses the upper die, the sliding plate is pressed down to continuously drive the threaded sleeve to move, at the moment, the threaded sleeve compresses the pushing spring, so that the pushing force of the threaded sleeve does not completely act on the positioning plate until the upper die presses the lower die, and then the aluminum liquid is poured through the pouring opening for processing;

step four: when the sliding sleeve drives the locating plate to horizontally move, the locating plate can drive the guide sleeve at the top to move, the guide sleeve slides on the guide rod, meanwhile, the guide sleeve drives the guide wheel to move, the guide wheel can move in the installation box, the locating plate can move smoothly integrally, the inclination of the locating plate in the moving process is reduced, the locating plate can guide and limit an upper die better, and cooling and demolding are performed after die casting is completed.

Preferably, the die casting device comprises a mounting plate and supporting feet fixedly mounted on the periphery of the bottom of the mounting plate, side plates are symmetrically fixed on two sides of the top of the mounting plate, top plates are fixedly connected with top plates, air cylinders are symmetrically mounted on the bottoms of the top plates, and upper dies are fixedly connected to the bottoms of telescopic parts of the air cylinders.

By adopting the technical scheme, the problems of difficult molding, poor product density and more sand holes in pure aluminum die casting are solved; and the product is easy to be deformed by sticking a mould, and the matte surface cannot meet the requirements, so that the required plate cost and the processing cost are high.

Preferably, the filling opening is installed in the middle of the top of the upper die, the lower die is installed in the middle of the top of the mounting plate, the locating plates are symmetrically installed on two sides of the upper die, the outer side of the telescopic part of the air cylinder is fixedly connected with the fixing sleeve, one side, close to the side plate, of the fixing sleeve is fixedly connected with the connecting plate, the inside of the side plate is provided with the groove, and the connecting plate is in sliding connection with the groove.

Through adopting above-mentioned technical scheme, start the cylinder, the cylinder drives mould and fixed cover and pushes down, and fixed cover drives connecting plate and sliding plate and moves down, and the sliding plate moves in the inside of slide rail this moment, and the connecting plate of the auxiliary both sides of being convenient for moves down vertically, and then plays the preliminary guide effect to last mould.

Preferably, a sliding plate is fixedly connected to the bottom of one side of the connecting plate, the sliding plate is located in the groove, a tooth block is fixedly connected to one side of the sliding plate, a rotating shaft is rotationally connected to the lower portion of the inside of the groove, a gear is fixedly connected to the outer side of the rotating shaft, and the tooth block is in meshed connection with the gear.

Through adopting above-mentioned technical scheme, tooth piece and gear cooperation for the sliding plate can drive the gear rotation, and the gear drives the lead screw and rotates, the follow-up removal of locating plate of being convenient for.

Preferably, the slide rail is installed in the outside of sliding plate, the slide rail is used for spacing to the sliding plate, the top symmetry of mounting panel is fixed with the fixed block, one side rotation of fixed block is connected with the lead screw, the lead screw passes curb plate and axis of rotation fixed connection, outside one side threaded connection of lead screw has the thread bush, outside opposite side sliding connection of lead screw has the slip cap.

Through adopting above-mentioned technical scheme, the thread bush removes to the locating plate, and the thread bush extrusion promotes spring and slip cap for the slip cap drives the locating plate and is close to the mould, is convenient for to last mould direction spacing.

Preferably, the bottom of locating plate and slip cap fixed connection, push spring has been cup jointed in the middle part outside of lead screw, push spring's one end and thread bush fixed connection, push spring's the other end and slip cap fixed connection.

Through adopting above-mentioned technical scheme, when the locating plate compresses tightly the mould, the sliding plate pushes down and can continue to drive the thread bush and remove, and at this moment, the thread bush can compress and promote the spring for the thrust of thread bush can not be fully acted on the locating plate, has realized the locating plate promptly to the spacing of last mould, can not hinder normal pushing down again.

Preferably, the limit groove has been seted up to the top symmetry of mounting panel, the limit groove is located the below of thread bush, the bottom fixedly connected with stopper of thread bush, stopper and limit groove sliding connection, one side fixedly connected with locating strip of locating plate, the constant head tank has been seted up to the both sides of going up the mould, locating strip and constant head tank sliding connection.

Through adopting above-mentioned technical scheme, the stopper slides in the inside of spacing groove, and the stopper is spacing to the thread bush for the thread bush removes to the locating plate, and the location strip card is to the inside back of constant head tank, and the location strip of both sides is further led to last mould this moment, has reduced the skew of last mould.

Preferably, the bottom symmetry of roof is fixed with the installation box, the inside fixedly connected with guide bar of installation box, the top fixedly connected with uide bushing of locating plate, the uide bushing cup joints in the outside of guide bar.

Through adopting above-mentioned technical scheme, the locating plate can drive the uide bushing at top and remove, and the uide bushing slides on the guide bar, has reduced the slope of locating plate removal in-process, and the locating plate of being convenient for leads spacingly to last mould better.

Preferably, the guide sleeve is in sliding connection with the guide rod, guide wheels are symmetrically arranged at the top of the guide sleeve, and the guide wheels are positioned in the mounting box.

Through adopting above-mentioned technical scheme, the uide bushing drives the leading wheel and removes simultaneously, and the leading wheel can remove in the inside of installation box, and the whole smooth removal of locating plate of being convenient for.

Compared with the prior art, the invention has the beneficial effects that: the method is characterized in that eighteen spark lines are reserved on the product rubber surface of an upper die and a lower die, one hundred twenty-number coarse sand is sprayed on the parting surface of a die core, a common die casting release agent is changed into a silicon-free release agent, sand spraying treatment is carried out on all parting surfaces of front and rear die cores, and 0.1-0.15 of all product appearance surfaces can be reserved for finish machining during design of the upper die and the lower die, so that sand holes and matte of a decorating part can meet the requirements, original plate cost and processing cost are greatly reduced, and product quality is improved;

1. the eighteen spark lines are reserved on the product rubber surface of the upper die and the lower die, and one hundred twenty coarse sand is sprayed on the parting surface of the die core, so that the condition of sticking the product to the die is reduced, and the demolding operation of the product is facilitated; the common die-casting release agent is changed into the silicon-free release agent, so that the cracking of the product is reduced, and the normal demolding of the product is facilitated; the sand blasting treatment is carried out on all parting surfaces of the front mold core and the rear mold core, so that the problem of die sticking/cracking of pure aluminum is solved, the mobile phone decoration can be smoothly put into mass production, and when the upper mold and the lower mold are designed, all product appearance surfaces can only be reserved for finish machining by 0.1-0.15, so that sand holes and matte surfaces of the decoration can meet the requirements, the original plate cost and processing cost are greatly reduced, and the conditions of difficult molding, poor product compactness and excessive sand holes of pure aluminum die casting are solved; the product is easy to be deformed by sticking a mold, and the matte surface cannot meet the requirements, so that the required plate cost and the processing cost are high;

2. the die casting device comprises a cylinder, an upper die, a positioning plate, a connecting plate, a sliding plate, a gear, a screw rod, a thread sleeve and a pushing spring, wherein when the die casting device is used, the cylinder is started to drive the upper die and the fixed sleeve to be pressed down, the fixed sleeve drives the connecting plate and the sliding plate to move down, the sliding plate moves in the sliding rail at the moment, the connecting plates at the two sides are convenient to move down vertically, the initial guiding effect on the upper die is further achieved, then the tooth block is matched with the gear, the sliding plate can drive the gear to rotate, the gear drives the screw rod to rotate, a limiting block slides in the limiting groove, the limiting block limits the thread sleeve, the thread sleeve moves towards the positioning plate, the thread sleeve extrudes the pushing spring and the sliding sleeve, the positioning plate is enabled to approach the upper die until a positioning strip on the positioning plate is clamped in the positioning groove, the positioning strip at the two sides is further guided towards the upper die, the offset of the upper die is reduced, when the positioning plate is pressed down, the sliding plate is enabled to continue to drive the thread sleeve to move, the pushing spring is compressed, the thread sleeve is enabled to not to be completely acted on the positioning plate, and the thread sleeve is enabled to move, and the upper die is prevented from being pressed down, the die is well, and the die is well pressed down, and the upper die is well pressed down, and the die is well pressed down and the die is kept;

3. be provided with mounting box, guide bar, uide bushing and leading wheel, when the slip cap drove locating plate horizontal migration, the locating plate can drive the uide bushing at top and remove, and the uide bushing slides on the guide bar, and the uide bushing drives the leading wheel and removes simultaneously, and the leading wheel can remove at the inside of mounting box, and the locating plate is whole smooth removal of being convenient for, has reduced the slope of locating plate removal in-process, and the locating plate of being convenient for leads spacingly to last mould better.

Drawings

FIG. 1 is a schematic diagram of the main sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1B according to the present invention;

FIG. 4 is a schematic view of a gear mounting structure of the present invention;

FIG. 5 is a schematic view of an upper die mounting structure of the present invention;

FIG. 6 is a schematic view showing the moving state of the positioning plate according to the present invention;

FIG. 7 is a schematic diagram of the overall structure of the present invention in front view;

FIG. 8 is a schematic diagram of a first product molding of the present invention;

FIG. 9 is a schematic diagram of a second product forming structure according to the present invention;

fig. 10 is a schematic view of a third product molding structure according to the present invention.

In the figure: 1. a mounting plate; 2. supporting feet; 3. a side plate; 4. a top plate; 5. a cylinder; 6. an upper die; 7. a filling port; 8. a lower die; 9. a positioning plate; 10. a fixed sleeve; 11. a connecting plate; 12. a groove; 13. a sliding plate; 14. tooth blocks; 15. a rotating shaft; 16. a gear; 17. a fixed block; 18. a screw rod; 19. a thread sleeve; 20. a sliding sleeve; 21. a pushing spring; 22. a limit groove; 23. a limiting block; 24. a positioning strip; 25. a positioning groove; 26. a mounting box; 27. a guide rod; 28. a guide sleeve; 29. and a guide wheel.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-10, the present invention provides a technical solution: a die casting process of a mobile phone camera ornament comprises the following steps:

step one: the product rubber surfaces of the upper die 6 and the lower die 8 are all reserved with eighteen spark lines; spraying one hundred twenty-number coarse sand on the parting surface of the die core; the common die casting release agent is changed into the silicon-free release agent; sand blasting treatment is carried out on all parting surfaces of the front mold core and the rear mold core, and when the upper mold 6 and the lower mold 8 are designed, all product appearance surfaces can only be reserved for finish machining by 0.1-0.15, and a die casting device is started for machining;

step two: when the die casting device is used, the air cylinder 5 is started, the air cylinder 5 drives the upper die 6 and the fixed sleeve 10 to press downwards, the fixed sleeve 10 drives the connecting plate 11 and the sliding plate 13 to move downwards, at the moment, the sliding plate 13 moves in the sliding rail, the connecting plates 11 on two sides are convenient to vertically move downwards, the preliminary guiding effect on the upper die 6 is further achieved, then the tooth block 14 and the gear 16 are matched, the sliding plate 13 can drive the gear 16 to rotate, the gear 16 drives the screw rod 18 to rotate, the limiting block 23 slides in the limiting groove 22, the limiting block 23 limits the thread sleeve 19, the thread sleeve 19 moves towards the positioning plate 9, and the thread sleeve 19 extrudes the pushing spring 21 and the sliding sleeve 20, so that the sliding sleeve 20 drives the positioning plate 9 to approach the upper die 6;

step three: the inside of constant head tank 25 is blocked to the location strip 24 on the locating plate 9, the location strip 24 of both sides is further directed to last mould 6 this moment, the skew of last mould 6 has been reduced, when the locating plate 9 compresses tightly last mould 6, slide plate 13 pushes down and can continue to drive thread bush 19 and remove, at this moment, thread bush 19 can compress push spring 21 for the thrust of thread bush 19 can not be fully acted on locating plate 9, until last mould 6 compresses tightly down mould 8, pour into aluminium liquid processing through filling opening 7 again, the material temperature: 720-730 ℃ and the pressure is 4.8-5.0 circles;

step four: when the sliding sleeve 20 drives the positioning plate 9 to horizontally move, the positioning plate 9 can drive the guide sleeve 28 at the top to move, the guide sleeve 28 slides on the guide rod 27, meanwhile, the guide sleeve 28 drives the guide wheel 29 to move, the guide wheel 29 can move in the installation box 26, the positioning plate 9 can move smoothly integrally, the inclination of the positioning plate 9 in the moving process is reduced, the positioning plate 9 can guide and limit the upper die 6 better, and cooling and demolding are performed after die casting is completed.

The die casting device comprises a mounting plate 1 and supporting feet 2 fixedly mounted on the periphery of the bottom of the mounting plate 1, side plates 3 are symmetrically fixed on the two sides of the top of the mounting plate 1, top end fixedly connected with top plates 4 of the side plates 3, air cylinders 5 are symmetrically mounted on the bottom of the top plates 4, and upper dies 6 are fixedly connected with the bottom ends of telescopic parts of the air cylinders 5.

The pouring opening 7 is installed in the middle of the top of the upper die 6, the lower die 8 is installed in the middle of the top of the mounting plate 1, the positioning plates 9 are symmetrically installed on two sides of the upper die 6, the outer side of the telescopic part of the air cylinder 5 is fixedly connected with the fixing sleeve 10, one side, close to the side plate 3, of the fixing sleeve 10 is fixedly connected with the connecting plate 11, the groove 12 is formed in the side plate 3, and the connecting plate 11 is in sliding connection with the groove 12.

The bottom of one side of connecting plate 11 is fixedly connected with sliding plate 13, and sliding plate 13 is located the inside of recess 12, and one side fixedly connected with tooth piece 14 of sliding plate 13, the inside below rotation of recess 12 is connected with axis of rotation 15, and the outside fixedly connected with gear 16 of axis of rotation 15, tooth piece 14 and gear 16 meshing are connected.

The slide rail is installed in the outside of sliding plate 13, and the slide rail is used for spacing to sliding plate 13, and the top symmetry of mounting panel 1 is fixed with fixed block 17, and one side rotation of fixed block 17 is connected with lead screw 18, and lead screw 18 passes curb plate 3 and axis of rotation 15 fixed connection, and outside one side threaded connection of lead screw 18 has thread bush 19, and outside opposite side sliding connection of lead screw 18 has slip cap 20.

The bottom of locating plate 9 and slip cap 20 fixed connection, the middle part outside of lead screw 18 has cup jointed push spring 21, and push spring 21's one end and thread bush 19 fixed connection, push spring 21's the other end and slip cap 20 fixed connection.

The limit groove 22 has been seted up to the top symmetry of mounting panel 1, and limit groove 22 is located the below of thread bush 19, and the bottom fixedly connected with stopper 23 of thread bush 19, stopper 23 and limit groove 22 sliding connection, one side fixedly connected with locating strip 24 of locating plate 9, locating slot 25 has been seted up to the both sides of last mould 6, locating strip 24 and locating slot 25 sliding connection.

The bottom of roof 4 symmetry is fixed with installation box 26, and the inside fixedly connected with guide bar 27 of installation box 26, and the top fixedly connected with uide bushing 28 of locating plate 9, uide bushing 28 cup joint in the outside of guide bar 27.

The guide sleeve 28 is in sliding connection with the guide rod 27, guide wheels 29 are symmetrically arranged on the top of the guide sleeve 28, and the guide wheels 29 are positioned in the mounting box 26.

Embodiment one: as shown in fig. 8, an industry normal process is adopted: all glue surfaces of the die core are saved to 800 # sand paper, and a common release agent is adopted, so that a product is seriously stuck during die test, failure is caused, the product is seriously stuck, and the die cannot be formed completely.

Embodiment two: as shown in fig. 9, the analysis shows that the adhesion between pure aluminum and the mold core is extremely strong through high temperature, the mold core is smoother, the adhesion is stronger, a set of 1*4 mold core is opened again for single glue feeding, all glue position surfaces are processed into eighteen-number spark lines (without saving the mold), the verification is performed by using a silicon-free release agent, and as a result, the product can be normally ejected, but all exhaust grooves/slag bags and other all adhesive molds of the parting surface lead to ejection deformation of the product, the deformation and cracking of the product are still 70 percent bad, and the processing of the next procedure cannot be performed.

Embodiment III: as shown in fig. 10, repeated test pattern verification: and finally, the integral connecting material is adopted, all parting surfaces of the front mold core and the rear mold core are subjected to sand blasting treatment except for the glue position reserved pattern of the product, and finally, the difficult problem of sticking/cracking of pure aluminum is completely solved by the test mold production, so that the decorating part can smoothly enter mass production.

Working principle: when the device is used, firstly, as shown in figures 1-10, eighteen spark lines are reserved on the product rubber surface of the upper die 6 and the lower die 8; spraying one hundred twenty-number coarse sand on the parting surface of the die core; the common die casting release agent is changed into the silicon-free release agent; all parting surfaces of the front mold core and the rear mold core are subjected to sand blasting treatment, and when the upper mold 6 and the lower mold 8 are designed, all product appearance surfaces can only be reserved for finish machining by 0.1-0.15, and a die casting device is started for machining.

When the die casting device is used, the air cylinder 5 is started, the air cylinder 5 drives the upper die 6 and the fixing sleeve 10 to be pressed downwards, the fixing sleeve 10 drives the connecting plate 11 and the sliding plate 13 to move downwards, at the moment, the sliding plate 13 moves in the sliding rail, the connecting plates 11 on two sides are convenient to assist to move downwards vertically, the preliminary guiding effect on the upper die 6 is achieved, then the tooth block 14 and the gear 16 are matched, the sliding plate 13 can drive the gear 16 to rotate, the gear 16 drives the screw rod 18 to rotate, the limiting block 23 slides in the limiting groove 22, the limiting block 23 limits the thread sleeve 19, the thread sleeve 19 moves towards the positioning plate 9, and the thread sleeve 19 extrudes the pushing spring 21 and the sliding sleeve 20, so that the sliding sleeve 20 drives the positioning plate 9 to approach the upper die 6.

Until the locating strip 24 on the locating plate 9 is clamped into the locating groove 25, the locating strips 24 on the two sides further guide the upper die 6 at the moment, the offset of the upper die 6 is reduced, when the locating plate 9 is pressed against the upper die 6, the sliding plate 13 is pressed down to continuously drive the threaded sleeve 19 to move, at the moment, the threaded sleeve 19 can compress the pushing spring 21, so that the pushing force of the threaded sleeve 19 cannot be completely acted on the locating plate 9 until the upper die 6 is pressed against the lower die 8, aluminum liquid is poured through the pouring opening 7 for processing, and the material temperature is as follows: 720-730 deg.c and pressure of 4.8-5.0 circles.

When the sliding sleeve 20 drives the positioning plate 9 to horizontally move, the positioning plate 9 can drive the guide sleeve 28 at the top to move, the guide sleeve 28 slides on the guide rod 27, meanwhile, the guide sleeve 28 drives the guide wheel 29 to move, the guide wheel 29 can move in the installation box 26, the positioning plate 9 can move smoothly integrally, the inclination of the positioning plate 9 in the moving process is reduced, the positioning plate 9 can guide and limit the upper die 6 better, and cooling and demolding are performed after die casting is completed.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.

Claims (9)

1. The die casting process of the mobile phone camera decorating part is characterized by comprising the following steps of:

step one: the product rubber surfaces of the upper die (6) and the lower die (8) are all reserved with eighteen spark lines; spraying one hundred twenty-number coarse sand on the parting surface of the die core; the common die casting release agent is changed into the silicon-free release agent; sand blasting treatment is carried out on all parting surfaces of the front mold core and the rear mold core, and when the upper mold (6) and the lower mold (8) are designed, all product appearance surfaces can only be reserved for finish machining by 0.1-0.15, and a die casting device is started for machining;

step two: when the die casting device is used, the air cylinder (5) is started, the air cylinder (5) drives the upper die (6) and the fixed sleeve (10) to be pressed down, the fixed sleeve (10) drives the connecting plate (11) and the sliding plate (13) to move downwards, at the moment, the sliding plate (13) moves in the sliding rail, the connecting plates (11) on two sides are convenient to vertically move downwards, the preliminary guiding effect on the upper die (6) is further achieved, then the tooth block (14) is matched with the gear (16), the sliding plate (13) can drive the gear (16) to rotate, the gear (16) drives the screw rod (18) to rotate, the limiting block (23) slides in the limiting groove (22), the limiting block (23) limits the threaded sleeve (19), the threaded sleeve (19) moves towards the positioning plate (9), and the spring (21) and the sliding sleeve (20) are pushed by the extrusion of the threaded sleeve (19), so that the positioning plate (9) is driven to approach the upper die (6) by the sliding sleeve (20).

Step three: the locating strips (24) on the locating plate (9) are clamped into the locating grooves (25), at the moment, the locating strips (24) on the two sides further guide the upper die (6), so that the offset of the upper die (6) is reduced, when the locating plate (9) presses the upper die (6), the sliding plate (13) is pressed down to continuously drive the threaded sleeve (19) to move, at the moment, the threaded sleeve (19) can compress the pushing spring (21), so that the pushing force of the threaded sleeve (19) cannot fully act on the locating plate (9) until the upper die (6) presses the lower die (8), and then aluminum liquid is poured through the pouring opening (7);

step four: when sliding sleeve (20) drive locating plate (9) horizontal migration, locating plate (9) can drive uide bushing (28) at top and remove, uide bushing (28) slide on guide bar (27), uide bushing (28) drive leading wheel (29) and remove simultaneously, leading wheel (29) can be at the inside removal of installation box (26), the whole smooth removal of locating plate (9) of being convenient for has reduced the slope of locating plate (9) removal in-process, and locating plate (9) of being convenient for are better to go up mould (6) and are led spacing, and the cooling drawing of patterns after the die casting is accomplished.

2. The die casting process of the mobile phone camera ornament according to claim 1, wherein the die casting process is characterized in that: the die casting device comprises a mounting plate (1) and supporting feet (2) fixedly mounted on the periphery of the bottom of the mounting plate (1), side plates (3) are symmetrically fixed on the two sides of the top of the mounting plate (1), top end fixedly connected with top plates (4) of the side plates (3), air cylinders (5) are symmetrically mounted on the bottoms of the top plates (4), and upper dies (6) are fixedly connected to the bottoms of telescopic parts of the air cylinders (5).

3. The die casting process of the mobile phone camera ornament according to claim 2, wherein the die casting process is characterized in that: the utility model discloses a pouring gate, including upper die (6), fixed cover (10), connecting plate (11) are installed in the middle of the top of last mould (6), install bed die (8) in the middle of the top of mounting panel (1), locating plate (9) are installed to the bilateral symmetry of last mould (6), the flexible portion outside fixedly connected with of cylinder (5), one side fixedly connected with connecting plate (11) that fixed cover (10) is close to curb plate (3), recess (12) are seted up to the inside of curb plate (3), connecting plate (11) and recess (12) sliding connection.

4. A process for die casting a trim piece for a camera of a cell phone according to claim 3, wherein: one side bottom fixedly connected with sliding plate (13) of connecting plate (11), sliding plate (13) are located the inside of recess (12), one side fixedly connected with tooth piece (14) of sliding plate (13), the inside below rotation of recess (12) is connected with axis of rotation (15), the outside fixedly connected with gear (16) of axis of rotation (15), tooth piece (14) are connected with gear (16) meshing.

5. The die casting process of the mobile phone camera ornament according to claim 4, wherein the die casting process comprises the following steps: the sliding plate is characterized in that a sliding rail is arranged on the outer side of the sliding plate (13), the sliding rail is used for limiting the sliding plate (13), a fixing block (17) is symmetrically fixed on the top of the mounting plate (1), a screw rod (18) is rotationally connected to one side of the fixing block (17), the screw rod (18) penetrates through the side plate (3) and is fixedly connected with the rotating shaft (15), a thread bush (19) is connected to one side of the outer portion of the screw rod (18) in a threaded mode, and a sliding bush (20) is connected to the other side of the outer portion of the screw rod (18) in a sliding mode.

6. The die casting process of the mobile phone camera ornament according to claim 5, wherein the die casting process is characterized in that: the bottom of locating plate (9) and slip cap (20) fixed connection, push spring (21) has been cup jointed in the middle part outside of lead screw (18), the one end and the thread bush (19) fixed connection of push spring (21), the other end and slip cap (20) fixed connection of push spring (21).

7. The die casting process of the mobile phone camera ornament according to claim 5, wherein the die casting process is characterized in that: limiting grooves (22) are symmetrically formed in the top of the mounting plate (1), the limiting grooves (22) are located below the threaded sleeves (19), limiting blocks (23) are fixedly connected to the bottoms of the threaded sleeves (19), the limiting blocks (23) are slidably connected with the limiting grooves (22), positioning strips (24) are fixedly connected to one side of the positioning plate (9), positioning grooves (25) are formed in two sides of the upper die (6), and the positioning strips (24) are slidably connected with the positioning grooves (25).

8. A process for die casting a trim piece for a camera of a cell phone according to claim 3, wherein: the bottom of roof (4) is fixed with installation box (26) symmetry, the inside fixedly connected with guide bar (27) of installation box (26), the top fixedly connected with uide bushing (28) of locating plate (9), uide bushing (28) cup joint in the outside of guide bar (27).

9. The die casting process of the mobile phone camera ornament according to claim 8, wherein the die casting process is characterized in that: the guide sleeve (28) is in sliding connection with the guide rod (27), guide wheels (29) are symmetrically arranged at the top of the guide sleeve (28), and the guide wheels (29) are located in the installation box (26).