CN219727037U

CN219727037U - Blower housing forming die

Info

Publication number: CN219727037U
Application number: CN202321070535.7U
Authority: CN
Inventors: 徐容平
Original assignee: Ningbo Technician College
Current assignee: Ningbo Technician College
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-09-22
Anticipated expiration: 2033-05-04

Abstract

The utility model discloses a blower housing forming die which comprises a first die plate and a second die plate, wherein the first die plate is provided with a pouring gate, the first die plate is respectively provided with a first forming cavity and a second forming cavity, the second die plate is respectively provided with a first forming core and a second forming core, the pouring gate is communicated with a main runner, the second die plate is provided with a splitter box, the opposite sides of the first forming core and the second forming core are communicated with first sliding holes, a splitter box is communicated between the splitter box and the first sliding holes, the inner diameter of the splitter box is gradually reduced near the first sliding holes, a top plate is movably connected in the second die plate, two first ejector rods are arranged on the top plate, the top plate is provided with a second ejector rod, and the splitter box is communicated with the second sliding holes. The utility model simply and rapidly cuts off the connecting part from the first shell to the second shell and drives the connecting part to separate from the shunt groove, does not need to manually cut off the connecting part between the first shell and the second shell, saves time and labor, and improves the production efficiency.

Description

Blower housing forming die

Technical Field

The utility model relates to the technical field of blower production, in particular to a blower shell forming die.

Background

The shaping mould, also called a mould, is a mould which is produced in proportion to the shape and structure of the object, and the material is made into a tool of a certain shape by means of pressing or pouring. The molding die generally comprises a movable die and a fixed die, molten materials are injected into a cavity through a gate when the movable die and the fixed die are buckled, and the movable die and the fixed die are separated when the die is opened so as to take out plastic products.

The blower housing is a unitary housing generally assembled by buckling a first housing and a second housing, as shown in fig. 8 and 9, and comprises a first housing 43 and a second housing 44 which are injection molded, wherein ventilation slots are respectively formed in the first housing 43 and the second housing 44, support columns 49 are respectively arranged on opposite sides of the first housing 43 and the second housing 44, hole slots 46 are respectively formed in the first housing 43 and the second housing 44, and through holes 47 are respectively formed in the first housing 43 near the hole slots 46.

The prior forming die is used for one-time injection molding of a first shell and a second shell in two cavities in the forming die through a gate, for example, the utility model patent with the publication number of CN202399441U discloses a single-color die for a blower shell, which comprises an upper die holder, a lower die holder, an upper die plate, a lower die plate, an upper die core, a lower die core and an inclined top penetrating through the lower die plate, wherein one end of the inclined top is arranged in the lower die holder through an inclined top mounting seat, and an inclined top guide block is further arranged on the lower die plate and is fixed in the lower die plate through a screw. However, the first casing and the second casing are connected to runner or the cold connecting portion of passageway department of moulding plastics, still need the staff manual work to cut connecting portion so that the two separation after first casing and the second casing drawing of patterns, comparatively waste time and energy, reduced production efficiency.

Disclosure of Invention

The utility model aims to solve the defects of the technology, and provides a forming die for a blower shell, which is designed for simply and rapidly cutting off a connecting part from between a first shell and a second shell and driving the connecting part to separate from a shunt groove, so that the connecting part between the first shell and the second shell is not required to be manually cut off, time and labor are saved, and the production efficiency is improved.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the blower housing forming die comprises a first die plate and a second die plate, wherein the first die plate is provided with a pouring gate, a first forming cavity and a second forming cavity are respectively formed in the first die plate, a first forming core and a second forming core are respectively arranged in the second die plate, the first die plate and the second die plate are clamped, the first forming cavity and the second forming core form a first injection cavity for forming a first shell, and the second forming cavity and the second forming core form a second injection cavity for forming a second shell;

the sprue is communicated with a main runner, the main runner is positioned between a first molding cavity and a second molding cavity, a shunt groove is formed in the position, corresponding to the top surface of the second template, between the first molding core and the second molding core, the shunt groove is communicated with the main runner, first sliding holes for molding supporting columns are formed in opposite sides of the first molding core and the second molding core in a penetrating mode, a shunt runner is communicated between the shunt groove and the first sliding holes, the inner diameter of the shunt runner is gradually reduced near the first sliding holes, a top plate is movably connected in the second template, two first ejector rods are arranged on the top plate and connected in the first sliding holes in a sliding mode, second ejector rods are arranged on the top plate, and second sliding holes for the second ejector rods to slide and connect are formed in the middle of the inner groove wall of the shunt groove in a penetrating mode.

Preferably, the top plate is respectively provided with a plurality of first thimble pieces and a plurality of second thimble pieces, the first molding core is penetrated with a plurality of first thimble holes, each first thimble piece is respectively connected in each first thimble hole in a sliding way, and the top surface of each first thimble piece is matched and attached with the outer surface of the first molding core;

the second molding core is communicated with a plurality of second thimble holes, each second thimble piece is respectively connected in each second thimble hole in a sliding way, and the top surface of each second thimble piece is matched and attached with the outer surface of the second molding core.

Preferably, the top plate is provided with an inclined top assembly, the inclined top assembly comprises a sliding block and an inclined top rod, the top plate is provided with a movable groove for sliding connection of the sliding block, a first end of the inclined top rod is hinged to the sliding block, a second forming core penetrates through a movable hole which is obliquely arranged, a second end of the inclined top rod is connected in the movable hole in a sliding mode, and the top surface of the second end of the inclined top rod is fit with the outer surface of the second forming core in an adapting mode.

Preferably, the first molding cavity and the second molding cavity are both formed with a hole column structure for molding a hole groove.

Preferably, the side core pulling assembly comprises a side pulling block, an inclined guide pillar and a driving block, wherein the second template is provided with a sliding groove for sliding connection of the side pulling block, the side pulling block is close to the side wall of the first forming core and is provided with a mounting groove, an elastic piece is arranged between the mounting groove and the sliding groove, the side pulling block is provided with a forming column for forming a through hole, the driving block and the inclined guide pillar are arranged on the first template, the side pulling block is communicated with the inclined guide hole for sliding connection of the inclined guide pillar, the side pulling block is far away from the side wall of the forming column and is provided with an inclined plane, and the driving block is in contact with the inclined plane, and the sliding groove is provided with a limiting part.

Preferably, the first molding cavity and the second molding cavity are both provided with inserts for molding ventilation grooves.

Preferably, the first template is provided with a first mounting groove, a first forming plate is mounted in the first mounting groove, and the first forming cavity and the second forming cavity are concavely formed on the first forming plate;

the second template is provided with a second mounting groove, a second molding plate is mounted in the second mounting groove, and the first molding core and the second molding core are outwards protruded to form the second molding plate.

Preferably, a positioning block is arranged around the first forming plate, and a positioning groove for inserting the positioning block is formed around the second forming plate.

Compared with the prior art, the utility model has the beneficial effects that:

after the first shell and the second shell are subjected to injection molding, the first template and the second template are mutually separated to perform mold separation operation, the top plate is pushed to approach the first template, the first ejector rods and the second ejector rods are driven to eject, the two first ejector rods are ejected from the first sliding holes to eject the support columns of the first shell and the support columns of the second shell respectively, the second ejector rods are ejected from the second sliding holes, the small-caliber opening of the runner is communicated with the first sliding holes, the plastic part between the plastic part and the support columns at the narrow opening of the runner is easily extruded and disconnected, and when the connecting part is ejected on the second ejector rods, the connecting part is pressed and deformed to enable the plastic in the runner to be deformed, so that the connecting part is simply and rapidly sheared from between the first shell and the second shell, the connecting part is driven to separate from the splitter box, the connecting part between the first shell and the second shell is not required to be manually sheared, time and labor are saved, and production efficiency is improved.

Drawings

FIG. 1 is a schematic view of the structure of the molding die in the embodiment;

FIG. 2 is a cross-sectional view of the molding die in one embodiment;

FIG. 3 is an enlarged view of region A of FIG. 2;

FIG. 4 is a second cross-sectional view of the molding die in the embodiment;

FIG. 5 is a schematic view of the structure of a first template in an embodiment;

FIG. 6 is a schematic diagram of the structure of a second template in an embodiment;

FIG. 7 is a cross-sectional view of a second template in an embodiment;

fig. 8 is a schematic structural view of a blower housing injection molded by the molding die according to the embodiment;

fig. 9 is an exploded view of the structure of the blower housing injection-molded by the molding die in the embodiment.

In the figure: 1. a first template; 2. a second template; 3. a base; 4. square iron; 5. an inclined roof assembly; 51. a slide block; 52. an inclined ejector rod; 6. a side core pulling assembly; 61. a side drawing block; 62. oblique guide posts; 63. a driving block; 7. a top plate; 8. a gate; 9. a first molding cavity; 10. a second molding cavity; 11. a first molding core; 12. a second molding core; 13. a main flow passage; 14. a shunt channel; 15. a sub-runner; 16. a first ejector rod; 17. a second ejector rod; 18. a first slide hole; 19. a second slide hole; 20. a first thimble member; 21. a second thimble member; 22. a first top pinhole; 23. a second top pinhole; 24. a movable groove; 25. a movable hole; 26. a hole column structure; 27. a chute; 28. a mounting groove; 29. an elastic member; 30. forming a column; 31. oblique guide holes; 32. an inclined plane; 33. a limit part; 34. an insert; 35. a first mounting groove; 36. a second mounting groove; 37. a first molding plate; 38. a second molding plate; 39. a positioning block; 40. a positioning groove; 41. a guide post; 42. a guide sleeve; 43. a first housing; 44. a second housing; 45. a ventilation window; 46. a hole groove; 47. a through hole; 48. a connection part; 49. and (5) supporting the column.

Detailed Description

The utility model is further described below by way of examples with reference to the accompanying drawings.

Referring to fig. 1 to 9, a blower housing forming mold comprises a first mold plate 1, a second mold plate 2 and a side core pulling assembly 6, wherein four guide sleeves 42 are arranged around the bottom surface of the first mold plate 1, four guide posts 41 are arranged around the top surface of the second mold plate 2, and each guide post 41 is respectively and slidably connected in each guide sleeve 42 so as to guide the mold closing and separating operation of the first mold plate 1 and the second mold plate 2.

The first template 1 is provided with a first mounting groove 3528, a first forming plate 37 is mounted in the first mounting groove 3528 so as to be convenient for dismounting and replacing the first forming plate 37, a first forming cavity 9 and a second forming cavity 10 are respectively formed on the bottom surface of the first forming plate 37 in a concave manner, the first template 1 is provided with a pouring gate 8, the pouring gate 8 is communicated with a main runner 13, and an output port of the main runner 13 is positioned between the first forming cavity 9 and the second forming cavity 10;

the second template 2 is provided with a second mounting groove 3628, a second forming plate 38 is mounted in the second mounting groove 3628, so that the second forming plate 38 can be disassembled and replaced, and the top surface of the second forming plate 38 is outwards protruded to form a first forming core 11 and a second forming core 12 respectively;

the first mold plate 1 and the second mold plate 2 are clamped, the first molding cavity 9 and the second molding core 12 form a first injection cavity for molding the first housing 43, and the second molding cavity 10 and the second molding core 12 form a second injection cavity for molding the second housing 44. The first molding cavity 9 and the second molding cavity 10 are each formed with a pillar structure 26 for molding a vent groove 46, and the first molding cavity 9 and the second molding cavity 10 are each provided with an insert 34 for molding a vent groove.

The side core pulling assembly 6 comprises a side pulling block 61, an inclined guide post 62 and a driving block 63, wherein the second template 2 is provided with a chute 27 for sliding connection of the side pulling block 61, the side wall of the side pulling block 61, which is close to the first molding core 11, is provided with a mounting groove 28, an elastic piece 29 is arranged between the mounting groove 28 and the chute 27, which is far away from the inner groove wall of the first molding core 11, is provided with a limit part 33, the driving block 63 and the inclined guide post 62 are both arranged on the first template 1, the side pulling block 61 is communicated with an inclined guide hole 31 for sliding connection of the inclined guide post 62, the side pulling block 61, which is far away from the side wall of the molding column 30, is provided with an inclined surface 32, the elastic piece 29 acts between the mounting groove 28 and the side pulling block 61, so that the side drawing block 61 has a driving force for approaching to the limit part 33 to slide in the chute 27, the limit part 33 is abutted against the side drawing block 61 to limit the sliding of the side drawing block 61, the inclined guide hole 31 is ensured to correspond to the end part of the inclined guide pillar 62, when the first mold plate 1 and the second mold plate 2 are assembled, the end part of the inclined guide pillar 62 is inserted into the inclined guide hole 31 to drive the side drawing block 61 to approach to the first molding core 11 until the driving block 63 is abutted against the inclined surface 32, the side drawing block 61 is assembled in place, the side wall of the side drawing block 61 corresponding to the first molding cavity 9 is provided with a molding column 30, and the molding column 30 is inserted into the first molding cavity to mold the through hole 47.

The top surface of the second template 2 is provided with a splitter box 14 corresponding to the position between the first forming core 11 and the second forming core 12, the splitter box 14 is communicated with the main runner 13, the opposite sides of the first forming core 11 and the second forming core 12 are respectively communicated with a first sliding hole 18 used for forming a supporting column 49, a splitter channel 15 is communicated between the splitter box 14 and the first sliding holes 18, the inner diameter of the splitter channel 15 is gradually reduced near the first sliding holes 18, a top plate 7 is movably connected in the second template 2, the second template 2 is provided with a base 3, two square irons 4 are symmetrically arranged between the base 3 and the second template 2, and the top plate 7 is slidingly connected between the two square irons 4 so as to enable the top plate 7 to approach or be far away from the second template 2 in a correct position.

Two first ejector rods 16 are arranged on the top plate 7, the first ejector rods 16 are connected in the first sliding holes 18 in a sliding mode, second ejector rods 17 are arranged on the top plate 7, and second sliding holes 19 for the second ejector rods 17 to be connected in a sliding mode are formed in the middle of the inner groove wall of the splitter box 14 in a penetrating mode.

The top plate 7 is respectively provided with a plurality of first thimble pieces 20 and a plurality of second thimble pieces 21, the first molding core 11 is penetrated with a plurality of first thimble holes 22, each first thimble piece 20 is respectively connected in each first thimble hole 22 in a sliding way, and the top surface of each first thimble piece 20 is fit with the outer surface of the first molding core 11;

the second molding core 12 is penetrated with a plurality of second ejector pin holes 23, each second ejector pin piece 21 is respectively connected in the second ejector pin holes 23 in a sliding way, and the top surface of each second ejector pin piece 21 is matched and attached with the outer surface of the second molding core 12.

The top plate 7 is provided with an inclined top assembly 5, the inclined top assembly 5 comprises a sliding block 51 and an inclined top rod 52, the top plate 7 is provided with a movable groove 24 for sliding connection of the sliding block 51, a first end of the inclined top rod 52 is hinged with the sliding block 51, a second forming core 12 is communicated with a movable hole 25 which is obliquely arranged, a second end of the inclined top rod 52 is connected in the movable hole 25 in a sliding manner, and the top surface of the second end of the inclined top rod 52 is fit with the outer surface of the second forming core 12.

When the first template 1 and the second template are assembled, a first injection molding cavity and a second injection molding cavity are formed, the two diversion channels 15 are respectively communicated with the two first sliding holes 18, so that the diversion channels 14 are communicated with the first injection molding cavity and the second injection molding cavity, molten plastics are sequentially injected into the main channel 13, the diversion channels 14, the diversion channels 15 and the first sliding holes 18 through the pouring gates 8, and are respectively injected into the first injection molding cavity and the second injection molding cavity, and injection molding operation of the first shell 43 and the second shell 44 is performed. The positioning block 39 is disposed around the first molding plate 37, and the positioning slot 40 for inserting the positioning block 39 is disposed around the second molding plate 38, so as to maintain the fastening state of the first molding plate 37 and the second molding plate 38.

After the first casing 43 and the second casing 44 are injection molded, the first mold plate 1 and the second mold plate 2 are separated from each other to perform the mold separation operation, the elastic member 29 is restored to deform, and the side drawing block 61 is driven to slide outwards, so that the molding column 30 is separated from the through hole 47 on the first casing 43 under the cooperation of the oblique top column and the oblique guide hole 31, so that the subsequent mold separation operation of the first casing 43 and the second casing 44 is facilitated.

By pushing the top plate 7 to approach the first template 1, the first ejector rod 16, the second ejector rod 17, the first ejector pin pieces 20, the second ejector pin pieces 21 and the inclined ejector assembly 5 are driven to perform ejection, the first ejector pin pieces 20 eject the first fixed core to eject the first shell 43 so as to separate from the first fixed core, the second ejector pin pieces 21 eject the second fixed core to eject the second shell 44 so as to separate from the second fixed core, under the guidance of the movable hole 25, the inclined ejector rod 52 ejects through the movable hole 25, and the sliding block 51 slides in the movable groove 24 in cooperation with the hinge movement of the first end of the sliding block 51 and the inclined ejector rod 52, so that the barb of the inner side wall of the second shell 44 can be smoothly demoulded.

The two first ejector rods 16 are ejected from the first sliding hole 18 to respectively eject the support column 49 of the first shell 43 and the support column 49 of the second shell 44, the second ejector rods 17 are ejected from the second sliding hole 19, the small-caliber opening of the shunt channel 15 is communicated with the first sliding hole 18, the plastic part between the plastic at the narrow opening of the shunt channel 15 and the support column 49 is easy to be extruded and broken, when the second ejector rods 17 are ejected to the connecting part 48, the connecting part 48 is pressed and deformed, so that the plastic in the shunt channel 15 is deformed, the connecting part 48 is simply and rapidly sheared from the position between the first shell 43 and the second shell 44, the connecting part 48 is driven to be separated from the shunt groove 14, the connecting part 48 between the first shell 43 and the second shell 44 is not required to be sheared manually, time and labor are saved, and the production efficiency is improved.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims

1. The utility model provides a hair-dryer shell forming die, includes first template (1) and second template (2), first template (1) is provided with runner (8), characterized by: the first template (1) is provided with a first molding cavity (9) and a second molding cavity (10) respectively, the second template (2) is provided with a first molding core (11) and a second molding core (12) respectively, the first template (1) and the second template (2) are clamped, the first molding cavity (9) and the second molding core (12) form a first injection molding cavity for molding a first shell (43), and the second molding cavity (10) and the second molding core (12) form a second injection molding cavity for molding a second shell (44);

sprue (8) intercommunication has sprue (13), sprue (13) are located department between first shaping chamber (9) and second shaping chamber (10), the top surface of second template (2) corresponds first shaping core (11) with department has seted up spread spectrum groove (14) between second shaping core (12), spread spectrum groove (14) with sprue (13) communicate with each other, first shaping core (11) with the opposite side of second shaping core (12) all link up there is first slide hole (18) that are used for shaping support column (49), spread spectrum groove (14) with communicate between first slide hole (18) has branch runner (15), the internal diameter of branch runner (15) is close to first slide hole (18) reduces gradually, swing joint has roof (7) in second template (2), be provided with two first ejector pins (16) on roof (7), first ejector pin (16) slide connect in first slide hole (18), be provided with on second ejector pin (7) slide hole (17) the second roof (17) has the middle part of second slide hole (17).

2. The blower housing forming die of claim 1, wherein: a plurality of first thimble members (20) and a plurality of second thimble members (21) are respectively arranged on the top plate (7), a plurality of first thimble holes (22) are penetrated through the first molding core (11), each first thimble member (20) is respectively connected in each first thimble hole (22) in a sliding way, and the top surface of each first thimble member (20) is matched and attached with the outer surface of the first molding core (11);

the second molding core (12) is penetrated by a plurality of second ejector pin holes (23), each second ejector pin piece (21) is respectively connected in each second ejector pin hole (23) in a sliding manner, and the top surface of each second ejector pin piece (21) is matched and attached with the outer surface of the second molding core (12).

3. The blower housing forming die of claim 1, wherein: be provided with on roof (7) to one side top subassembly (5), to one side top subassembly (5) include slider (51) and oblique ejector pin (52), offer roof (7) the movable groove (24) that slider (51) piece slided and connect, the first end of oblique ejector pin (52) with slider (51) are articulated, second shaping core (12) link up there is movable hole (25) that the slope set up, the second end of oblique ejector pin (52) slide connect in movable hole (25), the top surface of the second end of oblique ejector pin (52) with the surface adaptation laminating of second shaping core (12).

4. The blower housing forming die of claim 1, wherein: the first molding cavity (9) and the second molding cavity (10) are both formed with a hole column structure (26) for molding a hole groove (46).

5. The blower housing forming die of claim 1, wherein: the side core pulling assembly is characterized by further comprising a side core pulling assembly (6), the side core pulling assembly (6) comprises a side pulling block (61), an inclined guide column (62) and a driving block (63), a sliding groove (27) for sliding connection of the side pulling block (61) is formed in the second template (2), the side pulling block (61) is close to the side wall of the first forming core (11), a mounting groove (28) is formed in the side wall of the side pulling block, an elastic piece (29) is arranged between the mounting groove (28) and the sliding groove (27), the side pulling block (61) is provided with a forming column (30) for forming a through hole (47), the driving block (63) and the inclined guide column (62) are all arranged on the first template (1), the side pulling block (61) is communicated with an inclined guide hole (31) for sliding connection of the inclined guide column (62), the side pulling block (61) is far away from the side wall of the forming column (30), the driving block (63) is in contact with the inclined surface (32), and the sliding groove (27) is provided with a limiting part (33).

6. The blower housing forming die of claim 1, wherein: the first molding cavity (9) and the second molding cavity (10) are both provided with inserts (34) for molding ventilation grooves.

7. The blower housing forming die of claim 1, wherein: a first mounting groove (35) is formed in the first template (1), a first forming plate (37) is mounted in the first mounting groove (35), and both the first forming cavity (9) and the second forming cavity (10) are concavely formed on the first forming plate (37);

the second template (2) is provided with a second mounting groove (36), a second forming plate (38) is mounted in the second mounting groove (36), and the first forming core (11) and the second forming core (12) are outwards protruded to form the second forming plate (38).

8. The blower housing forming die as set forth in claim 7, wherein: positioning blocks (39) are arranged around the first forming plate (37), and positioning grooves (40) for inserting the positioning blocks (39) are formed around the second forming plate (38).