CN217729541U - Cell-phone fixed bolster injection mold - Google Patents

Abstract

The utility model discloses a mobile phone fixed support injection mold, which comprises an upper mold and a lower mold, wherein the upper mold is provided with a cavity piece, the lower mold is provided with a core piece, a groove is arranged in the cavity piece, and the core piece is provided with a molding block; two first cylindrical grooves and two second cylindrical grooves are respectively formed in two sides of the molding block, and a first molding column is arranged in each first cylindrical groove; the food pushing device is characterized by also comprising a bottom plate, wherein an ejector plate is movably connected between the bottom plate and the lower die, and a first ejector pin piece which is connected in a sliding manner in the second cylindrical groove is arranged on the ejector plate; swing joint has the mount pad on the thimble board, and the mount pad articulates there is oblique top piece, and the lateral wall that the type piece is close to first cylindrical groove has link up there is the inclined hole, and oblique top piece slides and connects in the inclined hole, and the buckle groove has been seted up to the tip lateral wall of oblique top piece. The utility model discloses it possesses at the in-process of the ejecting drawing of patterns of casing, synchronous drawing of patterns buckle structure for the casing drawing of patterns is comparatively smooth and easy, avoids casing pressurized deformation, has improved the advantage of the yields of cell-phone fixed bolster.

Description

Cell-phone fixed bolster injection mold

Technical Field

The utility model relates to an injection mold technical field, in particular to cell-phone fixed bolster injection mold.

Background

An injection mold is a tool for producing plastic products; the injection molding is a processing method used for batch production of parts with complex shapes, and particularly relates to a method for injecting heated and molten plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification. Fig. 1 shows a cell phone fixing support, including the casing, casing one side is formed with fixed tube structure, and the inside wall of the opposite side of casing is formed with buckle structure, is provided with four supporting tube structures around the bottom surface of casing.

When injection mold moulds plastics this cell phone stand, at the in-process of drawing of patterns operation, the thimble usually uses supporting tube structure department upwards ejecting as ejecting application of force point, with the ejecting drawing of patterns of casing, however, buckle structure causes the interference to the casing drawing of patterns easily, leads to the casing drawing of patterns to be jammed, and then makes the casing compressive deformation easily at drawing of patterns in-process, has reduced cell phone fixed bolster's yields.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above-mentioned technique and a cell-phone fixed bolster injection mold that designs, it possesses at the in-process of the ejecting drawing of patterns of casing, and synchronous drawing of patterns buckle structure for the casing drawing of patterns is comparatively smooth and easy, avoids casing pressurized deformation, has improved the advantage of cell-phone fixed bolster's yields.

In order to solve the technical problem, the technical scheme of the utility model is that: an injection mold for a mobile phone fixing support comprises an upper mold and a lower mold which are mutually buckled, wherein a cavity piece is installed on the upper mold, a core piece is installed on the lower mold, a groove is formed in the cavity piece, a mold block buckled with the groove is arranged on the core piece, and the groove and the mold block are spliced to form a molding cavity for molding a shell;

two inclined core-pulling assemblies are movably connected to two sides of the lower die corresponding to the profile block respectively, and the two inclined core-pulling assemblies are inserted into a forming cavity to form a fixed tube structure;

two first cylindrical grooves far away from the inclined core pulling assembly and two second cylindrical grooves close to the inclined core pulling assembly are respectively formed in two sides of the molding block, a first molding column is mounted in each first cylindrical groove, and the first molding column and the first cylindrical grooves are matched with a molding cavity to mold a supporting tube structure far away from a fixed tube structure;

the device is characterized by further comprising a bottom plate, wherein an ejector pin plate is movably connected between the bottom plate and the lower die, a first ejector pin piece connected in the second cylindrical groove in a sliding mode is mounted on the ejector pin plate, and the first ejector pin piece and the second cylindrical groove are matched with a forming cavity to form a supporting tube mechanism close to a fixed tube structure;

the ejector pin plate is provided with a mounting groove, the mounting groove is internally and movably connected with a mounting seat, the mounting seat is hinged with an inclined ejector piece, the section block is close to the side wall of the first cylindrical groove is communicated with a direction, the inclined hole is obliquely formed by the core-pulling assembly, the inclined ejector piece is connected in the inclined hole in a sliding mode, the inclined ejector piece is inserted into the end side wall of the inclined hole, and a clamping groove is formed in the end portion of the inclined hole in a matched mode and used for forming a clamping buckle structure.

Preferably, the bottom plate is symmetrically provided with two square irons, the tops of the square irons are connected with the lower die, and the ejector plate is connected between the two square irons in a sliding manner.

Preferably, first thimble spare include fixed connection in piston pipe on the thimble board, slide connect in second shaping post in the piston pipe, the piston pipe slide connect in second cylindrical groove, the one end of second shaping post is inserted in the piston pipe, the other end fixed connection of second shaping post in on the bottom plate.

Preferably, the mould block corresponds first cylindrical groove with department link up there is at least one first circular slot between the second cylindrical groove, install second thimble spare on the thimble board, the lower mould link up has the confession second movable hole of second thimble spare activity, second thimble spare passes through second movable hole and slide connect in the first circular groove, the top surface of first thimble spare with the mould block is laminated mutually.

Preferably, the inclined core pulling assembly comprises a sliding block and an inclined guide post, a first sliding groove for sliding connection of the bottom of the sliding block is formed in the lower die, a second sliding groove for sliding connection of the top of the sliding block is formed in the upper die, an inserting column is formed in one side of the sliding block, an inclined guide hole obliquely arranged towards the inserting column is formed in the top of the sliding block in a penetrating mode, the inclined guide post is slidably mounted in the second sliding groove and slidably connected into the inclined guide hole, a first slot is communicated with the inner bottom wall of the first sliding groove, a second slot communicated with the first slot is communicated with the square iron, and the inclined guide post is inserted into the second slot through the end portion of the first slot.

Preferably, a first elastic piece is arranged between the molding block and the sliding block, the molding block is provided with a first driving groove, the sliding block is provided with a second driving groove corresponding to the first driving groove, and two ends of the first elastic piece are respectively installed in the first driving groove and the second driving groove.

Preferably, a position limiting part is installed at a position, far away from the profile block, of the bottom inner groove wall of the first sliding groove.

Preferably, an inclined plane is formed on the side wall, far away from the molding block, of the sliding block, a pressing block is installed in the second sliding groove, and the side wall of the pressing block is attached to the inclined plane.

Preferably, the top of the upper die is provided with a top plate, and the top plate is provided with a gate piece communicated with the profiled groove.

Preferably, the figure in type groove is two at least, adjacent two the spread groove has been seted up between the type groove, the spread groove is used for the connection structure of two adjacent casings of shaping connection, the type piece corresponds spread groove department has link up the second circular slot, the thimble board correspond between two adjacent mounting grooves locate to install slide connect in third thimble spare in the second circular slot.

Compared with the prior art, the beneficial effects of the utility model are that: the upper die is buckled with the lower die by moving the upper die, the die cavity piece is buckled with the die core piece, the die assembly operation of the injection die is completed, the forming cavity for forming the shell is formed by splicing the forming groove and the forming block, the two corresponding inclined core-pulling components are close to each other in the die assembly process for forming the fixed tube structure, the first forming column and the first column-shaped groove are matched with the forming cavity for forming the supporting tube structure far away from the fixed tube structure, the first thimble piece and the second column-shaped groove are matched with the forming cavity for forming the supporting tube mechanism close to the fixed tube structure, the inclined thimble piece slides upwards in the inclined hole, the buckling groove is matched with the forming cavity for forming the buckling structure, after the injection die is molded, the upper die is separated from the lower die, the inclined core pulling assembly is separated from the fixed pipe structure, demolding operation can be carried out, the inclined core pulling assembly is close to the lower die through the driving ejector plate, the first ejector pin piece and the inclined ejector pin piece are driven to move upwards synchronously, stress is uniform when the shell is ejected, under the guiding of the inclined hole, the inclined ejector pin piece is hinged to the mounting seat and movably matched with the sliding movement of the mounting seat in the mounting groove, the inclined ejector pin piece is ejected along the axial direction of the inclined hole gently, the side wall of the inclined ejector pin piece close to the buckling groove is separated from the inner groove wall of the shell close to the buckling structure, synchronous demolding buckling structure is achieved, demolding of the shell is smooth, compression deformation of the shell is avoided, and the yield of the mobile phone fixing support is improved.

Drawings

FIG. 1 is a schematic structural view of a handset mounting bracket;

FIG. 2 is a schematic structural view of the embodiment;

FIG. 3 is a cross-sectional view of the first embodiment;

FIG. 4 is an enlarged view of area A of FIG. 3;

FIG. 5 is a second cross-sectional view of the embodiment;

FIG. 6 is a schematic view of the upper die;

fig. 7 is a schematic structural view of the lower mold.

In the figure: 1. an upper die; 2. a lower die; 3. a cavity piece; 4. a core member; 5. a profiled groove; 6. molding blocks; 7. an inclined core pulling assembly; 71. a slider; 72. an inclined guide post; 8. a first cylindrical groove; 9. a second cylindrical groove; 10. a first molding column; 11. a base plate; 12. an ejector plate; 13. a first thimble member; 131. a piston tube; 132. a second forming column; 14. a second pin member; 15. a first movable hole; 16. a second movable hole; 17. mounting grooves; 18. a mounting seat; 19. a slanted ejecting member; 20. an inclined hole; 21. a movable groove; 22. square iron; 23. a first circular groove; 24. a first chute; 25. a second chute; 26. inserting a column; 27. a first slot; 28. a second slot; 29. a first elastic member; 31. a first drive slot; 32. a second driving groove; 33. a stopper; 34. a bevel; 35. briquetting; 36. a top plate; 37. a gate member; 38. connecting grooves; 39. a second circular groove; 40. a third movable hole; 41. a third thimble member; 42. a guide post; 43. a guide sleeve; 44. withdrawing the needle; 45. withdrawing the tank; 46. a second elastic member; 47. a limiting column; 48. a guide post; 49. a guide hole; 50. positioning pins; 51. a positioning sleeve; 52. a first cooling pipe; 53. a second cooling pipe; 54. a housing; 55. a fixed tube structure; 56. a buckle structure; 57. a support tube mechanism; 58. oblique guide holes; 59. a snap groove.

Detailed Description

The invention is further described by the following embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 to 2 and 7, a mobile phone fixing bracket injection mold comprises a bottom plate 11, a top plate 36, and an upper mold 1 and a lower mold 2 which are buckled with each other, wherein two square irons 22 are symmetrically arranged on the top surface of the bottom plate 11, the tops of the square irons 22 are connected with the lower mold 2 so as to support the lower mold 2, the top plate 36 is installed on the top of the upper mold 1, and a gate piece 37 is installed on the top plate 36.

The injection mold comprises an upper mold 1, a cavity piece 3, a lower mold 2, a core piece 4, at least two symmetrically-arranged type grooves 5, a mold block 6 buckled with the type grooves 5, a guide post 42 is arranged around the top surface of the lower mold 2, a guide sleeve 43 for inserting the guide post 42 is arranged around the bottom surface of the upper mold 1 and used for guiding the mold closing action and the mold splitting action between the upper mold 1 and the lower mold 2, a positioning pin 50 is arranged around the top surface of the core piece 4, the top end part of the positioning pin 50 is of a conical structure, a positioning strip for inserting the positioning pin 50 is arranged on the bottom surface of the cavity piece 3, the inner wall of the positioning sleeve 51 is attached to the inner wall of the positioning pin 50 and used for guiding the buckling between the cavity piece 3 and the core piece 4, the buckling positions of the cavity piece 3 and the core piece 4 are accurate, and the type grooves 5 and the mold block 6 are spliced to form a molding cavity for molding a shell 54;

two first cylindrical grooves 8 far away from the inclined core pulling assembly 7 and two second cylindrical grooves 9 close to the inclined core pulling assembly 7 are respectively formed in two sides of the molding block 6, a first molding column 10 is mounted in each first cylindrical groove 8, and the first molding column 10 and the first cylindrical grooves 8 are matched with a molding cavity to mold a supporting tube structure far away from the fixed tube structure 55;

an ejector plate 12 is movably connected between the bottom plate 11 and the lower die 2, a first ejector pin piece 13 is mounted on the ejector plate 12, a first movable hole 15 communicated with the second cylindrical groove 9 penetrates through the lower die 2, the first ejector pin piece 13 passes through the end part of the first movable hole 15 and is connected in the second cylindrical groove 9 in a sliding mode, and the first ejector pin piece 13 and the second cylindrical groove 9 are matched with a forming cavity to form a supporting tube mechanism 57 close to the fixed tube structure 55;

an installation groove 17 is formed in the ejector plate 12, an installation seat 18 is connected in the installation groove 17 in a sliding manner, an inclined ejector piece 19 is hinged to the installation seat 18, an inclined hole 20 which is obliquely arranged towards the inclined core pulling assembly 7 penetrates through the side wall, close to the first cylindrical groove 8, of the section block 6, a movable groove 21 for moving the inclined ejector piece 19 penetrates through the lower die 2, the inclined ejector piece 19 is connected in the inclined hole 20 in a sliding manner through the movable groove 21, a buckling groove 59 is formed in the side wall, inserted into the inclined hole 20, of the end part of the inclined ejector piece 19, and the buckling groove 59 is matched with a forming cavity to form a buckling structure 56;

two inclined core pulling assemblies 7 are movably connected to two sides of the corresponding section block 6 of the lower die 2 respectively, each inclined core pulling assembly 7 comprises a sliding block 71 and an inclined guide post 72, the lower die 2 is provided with a first sliding groove 24 for the bottom of the sliding block 71 to be connected in a sliding mode, the upper die 1 is provided with a second sliding groove 25 for the top of the sliding block 71 to be connected in a sliding mode, the second sliding groove 25 is communicated with the section groove 5, one side of the sliding block 71 is provided with an inserting column 26, the top of the sliding block 71 is provided with an inclined guide hole 58 which is obliquely arranged towards the inserting column 26 in a penetrating mode, the inclined guide post 72 is installed in the second sliding groove 25 in a sliding mode and connected in the inclined guide hole 58 in a sliding mode, the inner groove wall at the bottom of the first sliding groove 24 is provided with a first inserting slot 27 in a penetrating mode, the square iron 22 is provided with a second inserting slot 28 communicated with the first inserting slot 27 in a penetrating mode, and the end portion, inserted into the inclined guide post 72, moves in a cavity between the first inserting slot 27 and the second slot 28, and ensures that the inclined guide post 72 is always located in the inclined guide hole 58 when the injection die assembly and separation operation are carried out. The side wall of the sliding block 71 far away from the molding block 6 is provided with an inclined surface 34, a pressing block 35 is installed in the second sliding groove 25, and the side wall of the pressing block 35 is attached to the inclined surface 34. A first elastic part 29 is arranged between the die block 6 and the sliding block 71, the die block 6 is provided with a first driving groove 31, the sliding block 71 is provided with a second driving groove 32 corresponding to the first driving groove 31, two ends of the first elastic part 29 are respectively installed in the first driving groove 31 and the second driving groove 32, when the upper die 1 and the lower die 2 perform die closing action, under the driving of the upper die 1, the inclined guide post 72 is inserted into the second slot 28 through the end part of the first slot 27, the inclined guide post 72 slides downwards in the inclined top hole, the press block 35 is abutted against the inclined surface 34, under the guiding of the inclined surface 34, the press block 35 is matched with the inclined guide post 72 to be connected with the inclined guide hole 58 in a sliding manner so as to drive the sliding block 71 to approach to one side of the die block 6, the distance between the first driving groove 31 and the second driving groove 32 is reduced, the first elastic part 29 is compressed and contracted, the two opposite insertion posts 26 approach each other until the two approach each other, and the matched forming cavity is used for forming the fixed pipe structure 55;

the gate piece 37 is communicated with the groove 5, a connecting groove 38 is formed between two adjacent grooves 5, the connecting groove 38 is used for forming a connecting structure for connecting two adjacent shells 54, a second round groove 39 penetrates through a position of the mold block 6 corresponding to the connecting groove 38, a third movable hole 40 communicated with the second round groove 39 penetrates through the lower mold 2, a third thimble piece 41 is installed on a position of the thimble plate 12 corresponding to two adjacent mounting grooves 17, the third thimble piece 41 passes through the third movable hole 40 and is connected in the second round groove 39 in a sliding mode, after the injection mold completes mold closing operation, molten raw materials can be injected into the molding cavity through the gate piece 37, a first cooling pipe 52 is arranged inside the mold cavity piece 3, a second cooling pipe 53 is arranged inside the mold core piece 4, after the molding cavity completes injection molding, the first cooling pipe 52 and the second cooling pipe 53 can be connected with an external hydraulic pump through the first cooling pipe 52 and the second cooling pipe 53, cooling liquid can circularly flow in the first cooling pipe 52 and the second cooling pipe 53 for cooling molding operation, and molding of the fixed support is accelerated.

After the injection mold is subjected to injection molding, mold splitting operation can be performed, the upper mold 1 and the lower mold 2 are separated, along with the expansion of the distance between the upper mold 1 and the lower mold 2, the inclined guide post 72 is sequentially separated from the second slot 28 and the first slot 27 under the guidance of the inclined guide hole 58, the press block 35 is separated from the inclined surface 34, so that the inclined guide post 72 drives the slide block 71 to slide in the first slide groove 24 to one side far away from the core piece 4, the first elastic piece 29 recovers and deforms, the auxiliary insertion post 26 is relatively quickly separated from the fixed tube structure 55, so that demolding operation is performed, the position limiting piece 33 is installed at the position, far away from the profile block 6, of the bottom inner groove wall of the first slide groove 24, the position limiting piece 33 is abutted against the sliding speed to prevent the slide block 71 from continuing to displace, the reset position of the inclined core pulling assembly 7 is determined, and the inclined guide post 72 can be inserted into the inclined guide hole 58 when the next mold closing operation is performed on the injection mold.

By driving the ejector plate 12 to approach the lower die 2, at least one guide column 48 is installed between the bottom plate 11 and the lower die 2, a guide hole 49 for slidably connecting the guide column 48 penetrates through the ejector plate 12, the ejector plate 12 is slidably connected between two square irons 22, the two square irons 22 are matched with the guide column 48 to strengthen the sliding action of the guide ejector plate 12, the ejector plate 12 synchronously drives the first ejector piece 13 and the inclined ejector piece 19 to move upwards, the first ejector piece 13 comprises a piston pipe 131 fixedly connected to the ejector plate 12 and a second forming column 132 slidably connected in the piston pipe 131, the piston pipe 131 is slidably connected in a second column groove 9 through a first movable hole 15, one end of the second forming column 132 is inserted into the piston pipe 131, and the other end of the second forming column 132 is fixedly connected to the bottom plate 11, the top of the piston tube 131 is abutted against the bottom surface of the support tube to drive the support tube to move upwards and complete the demolding operation with the second molding column 132, and meanwhile, the inclined ejecting piece 19 is abutted against the bottom of the other side of the shell 54, so that the shell 54 is stressed uniformly when ejected, under the guidance of the inclined hole 20, the inclined ejecting piece 19 is hinged on the mounting seat 18 and movably matched with the sliding movement of the mounting seat 18 in the mounting groove 17, so that the inclined ejecting piece 19 is ejected smoothly along the axial direction of the inclined hole 20, the side wall of the inclined ejecting piece 19 close to the buckling groove 59 is separated from the inner groove wall of the shell 54 close to the buckling structure 56, the synchronous demolding of the buckling structure 56 is realized, the shell 54 is demolded smoothly, the compression deformation of the shell 54 is avoided, and the yield of the mobile phone fixing support is improved.

At least one first circular groove 23 penetrates through a position, corresponding to a first cylindrical groove 8 and a second cylindrical groove 9, of a section block 6, a second thimble piece 14 is installed on a thimble plate 12, a second movable hole 16 communicated with the first circular groove 23 penetrates through a lower die 2, the second thimble piece 14 is connected into the first circular groove 23 in a sliding mode through the second movable hole 16, the top surface of the first thimble piece 13 is attached to the section block 6, the second thimble piece 14 moves upwards along with the thimble plate 12, and an auxiliary inclined thimble piece 19 conducts demoulding operation on two support column structures far away from a fixed tube structure 55.

A retreating needle 44 is arranged around the ejector plate 12, a retreating groove 45 for the retreating needle 44 to be connected in a sliding manner is formed in the lower die 2 in a penetrating manner, a second elastic part 46 sleeved on the retreating needle 44 is installed between the lower die 2 and the ejector plate 12, when the ejector plate 12 performs a demoulding action, the ejector plate 12 drives the retreating needle 44 to be ejected out of the retreating groove 45, the second elastic part 46 is compressed and contracted to buffer the pressure applied on the ejector plate 12, a limiting column 47 is arranged around the bottom of the lower die 2, when the limiting column 47 is in contact with the top surface of the ejector plate 12, the limiting column 47 is used for preventing the ejector plate 12 from continuously approaching the lower die 2, the mobile phone fixing bracket completes the demoulding operation, and then the force applied on the ejector plate 12 is stopped, the second elastic part 46 is restored to be deformed to drive the ejector plate 12 to reset, so as to prepare for the next mould closing operation.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims (10)

1. The utility model provides a cell-phone fixed bolster injection mold, characterized by: the shell forming die comprises an upper die (1) and a lower die (2) which are mutually buckled, a cavity piece (3) is installed on the upper die (1), a core piece (4) is installed on the lower die (2), a groove (5) is formed in the cavity piece (3), a block (6) buckled with the groove (5) is arranged on the core piece (4), and the groove (5) and the block (6) are spliced to form a forming cavity for forming a shell (54);

two inclined core-pulling components (7) are respectively and movably connected to two sides of the lower die (2) corresponding to the mould block (6), and the two inclined core-pulling components (7) are inserted into a forming cavity to form a fixed pipe structure (55);

two first cylindrical grooves (8) far away from the inclined core pulling assembly (7) and two second cylindrical grooves (9) close to the inclined core pulling assembly (7) are respectively formed in two sides of the molding block (6), a first molding column (10) is installed in each first cylindrical groove (8), and the first molding column (10) and the first cylindrical groove (8) are matched with a molding cavity to form a supporting tube structure far away from the fixed tube structure (55);

the die also comprises a bottom plate (11), an ejector plate (12) is movably connected between the bottom plate (11) and the lower die (2), a first ejector piece (13) connected in the second cylindrical groove (9) in a sliding manner is mounted on the ejector plate (12), and the first ejector piece (13) and the second cylindrical groove (9) are matched with a forming cavity to form a support tube mechanism (57) close to the fixed tube structure (55);

mounting groove (17) have been seted up on thimble board (12), swing joint has mount pad (18) in mounting groove (17), mount pad (18) articulate has oblique apical member (19), type piece (6) are close to the lateral wall of first cylindrical groove (8) is link up there is the orientation inclined hole (20) that subassembly (7) slope of loosing core set up to one side, oblique apical member (19) slide connect in inclined hole (20), oblique apical member (19) insert buckle groove (59) have been seted up to the tip lateral wall of inclined hole (20), buckle groove (59) cooperation shaping chamber is used for shaping buckle structure (56).

2. The injection mold for the mobile phone fixing bracket as claimed in claim 1, wherein: two square irons (22) are symmetrically arranged on the bottom plate (11), the tops of the square irons (22) are connected with the lower die (2), and the ejector plate (12) is connected between the two square irons (22) in a sliding mode.

3. The injection mold for the mobile phone fixing bracket as claimed in claim 2, wherein: first thimble spare (13) including fixed connection in piston pipe (131) on thimble board (12), slide connect in second profiled column (132) in piston pipe (131), piston pipe (131) slide connect in second cylindrical groove (9), the one end of second profiled column (132) is inserted in piston pipe (131), the other end fixed connection of second profiled column (132) in on bottom plate (11).

4. The injection mold for the mobile phone fixing bracket as claimed in claim 2, wherein: the section block (6) corresponds first cylindrical groove (8) with department link up there is at least one first circular slot (23) between second cylindrical groove (9), install second thimble spare (14) on thimble board (12), lower mould (2) link up the confession second thimble spare (14) second movable hole (16) of activity, second thimble spare (14) pass through second movable hole (16) and slide connect in first circular slot (23), the top surface of first thimble spare (13) with section block (6) are laminated mutually.

5. The mobile phone fixing bracket injection mold of claim 2, wherein: the inclined core pulling assembly (7) comprises a sliding block (71) and an inclined guide post (72), a first sliding groove (24) connected with the bottom of the sliding block (71) in a sliding mode is formed in the lower die (2), a second sliding groove (25) connected with the top of the sliding block (71) in a sliding mode is formed in the upper die (1), an inserting column (26) is formed in one side of the sliding block (71), an inclined guide hole (58) formed in the top of the sliding block (71) in a penetrating mode faces the inserting column (26) in an inclined mode, the inclined guide post (72) is installed in the second sliding groove (25) in a sliding mode and connected in the inclined guide hole (58) in a sliding mode, a first inserting groove (27) is formed in the bottom inner groove wall of the first sliding groove (24) in a penetrating mode, a second inserting groove (28) communicated with the first inserting groove (27) is formed in the square iron (22) in a penetrating mode, and the inclined guide post (72) is inserted into the second inserting groove (28) through the end portion of the first inserting groove (27).

6. The injection mold for the mobile phone fixing bracket as claimed in claim 5, wherein: a first elastic piece (29) is arranged between the molded block (6) and the sliding block (71), a first driving groove (31) is formed in the molded block (6), a second driving groove (32) is formed in the position, corresponding to the first driving groove (31), of the sliding block (71), and two ends of the first elastic piece (29) are installed in the first driving groove (31) and the second driving groove (32) respectively.

7. The injection mold for the mobile phone fixing bracket as claimed in claim 5, wherein: and a limiting piece (33) is arranged on the bottom inner groove wall of the first sliding groove (24) far away from the section block (6).

8. The injection mold for the mobile phone fixing bracket as claimed in claim 5, wherein: an inclined plane (34) is formed in the side wall, away from the molding block (6), of the sliding block (71), a pressing block (35) is installed in the second sliding groove (25), and the side wall of the pressing block (35) is attached to the inclined plane (34).

9. The injection mold for the mobile phone fixing bracket according to any one of claims 1 to 8, wherein: and a top plate (36) is installed at the top of the upper die (1), and a gate piece (37) communicated with the shaped groove (5) is installed on the top plate (36).

10. The mobile phone fixing bracket injection mold of claim 9, wherein: the figure of type groove (5) is two at least, adjacent two spread groove (38) have been seted up between type groove (5), spread groove (38) are used for the shaping to connect the connection structure of two adjacent casings (54), type piece (6) correspond spread groove (38) department and link up there is second circular slot (39), thimble board (12) correspond between two adjacent mounting grooves (17) locate to install to slide connect in third thimble spare (41) in second circular slot (39).

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