CN113198974B

CN113198974B - Forming die of foam mould for lost foam

Info

Publication number: CN113198974B
Application number: CN202110381117.9A
Authority: CN
Inventors: 江建新
Original assignee: Zhejiang Xuanjie Electromechanical Technology Co ltd
Current assignee: Zhejiang Xuanjie Electromechanical Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-10-26
Anticipated expiration: 2041-04-09
Also published as: CN113198974A

Abstract

The invention provides a forming die of a foam die for a lost foam, which comprises a die shell and a movable tile, wherein the die shell is provided with a steam inlet pipe; the movable tile comprises a bottom plate, an inner forming block and an outer connecting block, and a sliding groove is formed between the inner forming block and the outer connecting block; the steam inlet pipe penetrates through the external connecting block and is communicated with the sliding groove; inside sliding of sliding tray is connected with the middle part sliding block, and the standing groove has been seted up to the middle part sliding block near outside connecting block department, and the inside evenly distributed of standing groove has a plurality of fins, and the fin sets up along the radial of standing groove. When the steam injection device is used, steam is injected into the steam inlet pipe, and the steam in the steam inlet pipe impacts the fins and drives the middle sliding block to slide in the sliding chamber. When middle part sliding block slided in the sliding chamber is inside, advance tub spun steam from steam and can strike the position that differs at middle part sliding block, so middle part sliding block can heat the foam granule more evenly for the shaping of foam mould is difficult for receiving the influence.

Description

Forming die of foam mould for lost foam

Technical Field

The invention relates to a foam mold production tool, in particular to a forming mold of a foam mold for a lost foam mold.

Background

At present, chinese patent with publication number CN208628376U discloses a lost foam casting motor base foam molding mold, which comprises a mold housing, a movable shoe slidably disposed inside the mold housing, an upper mold plate disposed above the mold housing, an upper mold core disposed at the bottom of the upper mold plate, a lower mold plate disposed below the mold housing, and a lower mold core disposed at the top of the lower mold plate. Be provided with steam on the mould shell and advance the pipe, steam advances the pipe and is linked together with the inner chamber of activity tile, advances the pipe through steam during the use and pours into steam into to activity tile inside for heat activity tile.

The in-process that uses steam to be used for heating activity tile, advance a tub spun steam by steam and can contact earlier activity tile inner wall and steam advance tub relative department again to scattering all around, so can appear that activity tile inner wall advances tub relative department temperature with steam and higher, and activity tile inner wall advances the condition that tub staggered department temperature can be lower with steam, and then leads to the inside foam granule of this forming die to obtain the condition of even heating, causes very big influence to the shaping of foam mould.

Disclosure of Invention

In view of the above, the present invention is directed to a forming mold of a foam mold for a lost foam, which can uniformly heat foam particles inside, so that the forming of the foam mold is not easily affected.

In order to solve the technical problems, the technical scheme of the invention is as follows: a forming die of a foam die for a lost foam comprises a die shell, a plurality of movable tiles arranged inside the die shell in a sliding mode, an upper die plate arranged above the die shell, an upper die core arranged at the bottom of the upper die plate, a lower die plate arranged below the die shell and a lower die core arranged at the top of the lower die plate, wherein a steam inlet pipe is arranged at the position, opposite to the movable tiles, of the die shell, the steam inlet pipe is communicated with the inner cavity of the movable tiles, a drain pipe is arranged on the die shell, and the drain pipe is communicated with the inner cavity of the movable tiles; the movable tiles comprise a bottom plate, an inner forming block is arranged at the top of the bottom plate close to the lower mold core, an outer connecting block is arranged at the top of the bottom plate far away from the lower mold core, an arc-shaped sliding groove is formed between the inner forming block and the outer connecting block, and when the movable tiles are sequentially abutted, the sliding grooves on the movable tiles are sequentially communicated to form a closed sliding cavity; the steam inlet pipe penetrates through the external connecting block and is communicated with the sliding groove; the inside sliding connection of sliding tray has the middle part sliding block, the middle part sliding block is close to curved standing groove has been seted up to the lateral wall department of outside connecting block, inside evenly distributed of standing groove has a plurality of fins, the fin is followed the radial setting of standing groove.

Through the technical scheme, when need use this forming die to be used for making the foam mould, install the top of mould shell with the cope match-plate pattern, make it stretch into inside the mould shell to go up the mould core, install the bottom of mould shell with the lower bolster, make the lower mould core stretch into inside and contradict with last mould core of mould shell, the mould core and lower mould core one side removal that make progress of control activity tile piece, support tightly in proper order until a plurality of activity tiles, put into the clearance of inside shaping piece and last mould core and lower mould core with the foam granule.

During the use, advance intraduct to steam and pour into steam into, steam advances the inside steam that enters into movable tile piece through steam, and the steam that enters into movable tile piece is strikeed at the fin and is driven about the middle part sliding block and slide in sliding chamber. When middle part sliding block slided in the sliding chamber is inside, advance tub spun steam from steam and can strike the position that differs at middle part sliding block, so middle part sliding block can heat the foam granule more evenly for the shaping of foam mould is difficult for receiving the influence. Moreover inside a plurality of fins that set up of standing groove, the area of contact of multiplicable middle part sliding block and steam, heat in so steam can more transmit to the middle part sliding block on, and the middle part sliding block can be more fast with the foam particle heating.

Preferably, an arc-shaped telescopic plate is arranged inside the placing groove, the telescopic plate comprises a plurality of telescopic units which are in one-to-one correspondence with the fins, the telescopic units are sequentially sleeved, a through hole is formed in the middle of each telescopic unit in a penetrating mode, and the fins penetrate through the through holes corresponding to the telescopic units; a first spring is arranged between the inner groove wall of the placing groove close to the lower mold core and the expansion plate and used for pushing the expansion plate to one side of the notch of the placing groove.

Through above-mentioned technical scheme, when steam entered the pipe and entered into inside the sliding tray via steam, steam applyed with thrust to the expansion plate for inside the expansion plate slided into the standing groove, make the fin expose in the expansion plate, so steam accessible fin promotes middle part sliding block and slides in sliding chamber. When the steam is stopped being injected into the steam inlet pipe, the expansion plate moves towards one side of the notch of the placing groove under the action of the first spring. Meanwhile, the expansion plate can drive steam in the sliding groove to be discharged through a blow-off pipe, and the steam residue in the sliding groove is reduced, so that the formed foam mold can be cooled more quickly, and the production efficiency of the foam mold is improved.

Preferably, the bottom of the sliding groove is provided with a limiting groove, the bottom of the middle sliding block is provided with a groove, the groove is used for communicating with the limiting groove, the inner groove wall of the top of the groove is fixed with a second spring, the bottom of the second spring is provided with a positioning ball, and the second spring is used for pushing the positioning ball into the limiting groove.

Through above-mentioned technical scheme, when stopping advancing intraduct injection steam to steam, the middle part sliding block still can slide in the sliding tray under the inertial action. When middle part sliding block slides to recess and spacing groove relative time from top to bottom, spring two pushes away the locating ball inside the spacing groove, and the locating ball can carry on spacingly to middle part sliding block with the spacing groove cooperation for the border of external connection piece, middle part sliding block and inside shaping piece flushes, and drive element such as accessible cylinder is used for controlling movable tile piece and removes to keeping away from last mold core and lower mold core one side so, is used for separating inside shaping piece and fashioned foam mold.

Preferably, the standing groove has been close to the interior cell wall department of lower mold core and has been seted up the guide way, the guide way along the radial setting of standing groove, the expansion plate is close to the lateral wall department of lower mold core is provided with the guide bar, the guide bar slide connect in inside the guide way, the inside connecting hole of having seted up of middle part sliding block, the connecting hole intercommunication the guide way and the recess, the connecting hole is provided with the connecting rope, the one end of connecting rope is fixed the interior cell wall department of guide way, just the guide bar in can promote when the inside slip of guide way the connecting rope, the other end of connecting rope connect in the location pearl.

Through above-mentioned technical scheme, when advancing the pipe through steam and pouring into steam into to the sliding tray inside, steam impresses the expansion plate inside the standing groove, and meanwhile, the expansion plate passes through the guide bar and promotes the connecting rope, and the connecting rope draws in the recess with the location pearl for the reference column is difficult to cause the hindrance to the slip of middle part sliding block, and so the middle part sliding block can be more smooth and easy slide in the sliding tray inside.

Preferably, the bilateral symmetry of standing groove is provided with two mounting grooves, the mounting groove along the axial of middle part sliding block run through in the middle part sliding block, the inside sealing rubber piece that is provided with of mounting groove, sealing rubber piece protrusion in the notch of mounting groove and with the outside connecting block is inconsistent.

Through above-mentioned technical scheme, the sealed gluey piece of standing groove both sides can cut off the standing groove of two adjacent middle part sliding blocks, so when spring two promoted the expansion plate to standing groove notch one side, the expansion plate can effectively release the inside steam of standing groove from the blow off pipe, reduces the inside steam of standing groove and remains for fashioned foam mold can cool off more fast, helps promoting this forming die's production efficiency.

Preferably, a guide post penetrates through the mold shell and the position, opposite to the movable tile, of the mold shell, and the end, extending into the mold shell, of the guide post is fixedly connected to the movable tile; the guide post is provided with a limiting flange on the end part exposed out of the mold shell, the limiting flange protrudes out of the side wall of the guide post, and the limiting flange is used for abutting against the outer wall of the mold shell.

Through the technical scheme, when the movable tile is used, the movable tile can be controlled to be close to or far away from the upper mold core and the lower mold core through the guide posts. The guide post is provided with a limiting flange on the end part exposed out of the die shell, when the limiting flange is abutted against the outer wall of the die shell, the guide post cannot go deep into the die shell, and a plurality of movable tiles in the die shell are sequentially abutted tightly at the moment.

Preferably, the tank bottom department of sliding tray is provided with the arc guide rail, the guide rail with the sliding tray is concentric the setting, the arc guide slot has been seted up to the bottom of middle part sliding block, the arc guide rail with the arc guide slot slides and links to each other.

Through above-mentioned technical scheme, the cooperation of arc guide slot and arc guide rail can lead to the slip of middle part sliding block.

Preferably, the inside of arc guide slot is provided with wear-resisting cover, wear-resisting ways locate the arc guide rail, just wear-resisting cover can be followed the arc guide rail slides.

Through above-mentioned technical scheme, can avoid the middle part sliding block wearing and tearing to appear at the inside wear-resisting cover that sets up of arc guide slot, simultaneously, because wear-resisting cover has stronger wearability, can prolong the life of this middle part sliding block to a certain extent.

Drawings

FIG. 1 is a transverse cross-sectional view of an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

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

fig. 4 is an enlarged view of a portion B of fig. 3.

Reference numerals: 1. a mold housing; 2. mounting a template; 3. an upper mold core; 4. a lower template; 5. a lower mold core; 6. a movable tile; 61. a base plate; 62. an inner forming block; 63. an external connection block; 64. a middle slider; 7. a steam inlet pipe; 8. a blow-off pipe; 9. a sliding groove; 10. a placement groove; 11. a fin; 12. a retractable plate; 121. a telescopic unit; 13. a through hole; 14. a first spring; 15. a limiting groove; 16. a groove; 17. a second spring; 18. a positioning bead; 19. a guide groove; 20. a guide bar; 21. connecting holes; 22. a connecting rope; 23. mounting grooves; 24. sealing the rubber block; 25. a guide post; 26. limiting and flanging; 27. an arc-shaped guide rail; 28. an arc-shaped guide groove; 29. a wear-resistant sleeve; 30. and cooling water inlet pipes.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

A forming die of a foam die for a lost foam comprises a hollow die shell 1, a plurality of movable pads 6 arranged inside the die shell 1 in a sliding mode, an upper die plate 2 arranged above the die shell 1, an upper die core 3 arranged on the bottom surface of the upper die plate 2, a lower die plate 4 arranged below the die shell 1 and a lower die core 5 arranged on the top surface of the lower die plate 4, wherein the movable pads are arranged on the upper die plate 2. When the mould is used, the upper template 2 is buckled with the mould shell 1, so that the upper template 2 is contacted with the top of the mould shell 1, and the upper mould core 3 at the bottom of the upper template 2 extends into the mould shell 1; buckling a lower template 4 with a mold shell 1 to enable the lower template 4 to be in contact with the bottom of the mold shell 1, and enabling an upper mold core 3 at the top of the lower template 4 to extend into the mold shell 1 and to be coaxially abutted against the upper mold core 3; controlling the movable tiles 6 to move towards the center of the mold shell 1 until the movable tiles 6 are sequentially abutted; at this time, a cavity for forming the foam mold is formed between the movable pads 6 and the upper mold core 3 and the lower mold core 5.

A steam inlet pipe 7 penetrates through the opposite position of the mould shell 1 and the movable tile 6, and the steam inlet pipe 7 is communicated with the inner cavity of the movable tile 6. When in use, steam is injected into the movable tiles 6 through the steam inlet pipe 7 to heat the movable tiles 6, and the heated movable tiles 6 can be used for heating foam particles in the mold cavity. A cooling water inlet pipe 30 penetrates through the position of the mold shell 1 opposite to the movable tile 6, and the cooling water inlet pipe 30 is communicated with the inner cavity of the movable tile 6. When the movable tile mould cooling device is used, cooling water is injected into the movable tile 6 through the cooling water inlet pipe 30 to cool the movable tile 6, and the cooled movable tile 6 can be used for cooling a foam mould formed in a mould cavity. A blow-off pipe 8 penetrates through the mold shell 1 and the position opposite to the movable tile 6, and the blow-off pipe 8 is communicated with the inner cavity of the movable tile 6. When in use, steam or cooling water in the inner cavity of the movable tile 6 can be discharged through the sewage discharge pipe 8. The relative department of mould shell 1 and activity tile 6 runs through and is provided with guide post 25, and the tip fixed connection that guide post 25 stretched into mould shell 1 is on activity tile 6, and during the use, guide post 25 can lead to the slip of activity tile 6. The end part of the guide column 25 exposed out of the mold shell 1 is provided with a limiting flange 26, the limiting flange 26 protrudes out of the side wall of the guide column 25, and the limiting flange 26 is used for abutting against the outer wall of the mold shell 1 so as to limit the guide column 25 to continuously go deep into the mold shell 1.

The movable pad 6 comprises a bottom plate 61, an inner forming block 62 fixed on the top of the bottom plate 61 near the lower mold core 5, an outer connecting block 63 fixed on the top of the bottom plate 61 far away from the lower mold core 5, and a middle sliding block 64 arranged between the inner forming block 62 and the outer connecting block 63.

An arc-shaped sliding groove 9 is formed between the inner forming block 62 and the outer connecting block 63, and the steam inlet pipe 7 penetrates through the outer connecting block 63 and is communicated with the sliding groove 9. The middle sliding blocks 64 are connected inside the sliding grooves 9 in a sliding mode, when the edges of the movable tiles 6 are sequentially abutted, the sliding grooves 9 on the movable tiles 6 are sequentially communicated and form a complete circular sliding cavity, and the middle sliding blocks 64 can slide in the sliding cavity.

The groove bottom of the sliding groove 9 is provided with an arc-shaped guide rail 27, and the arc-shaped guide rail 27 and the sliding groove 9 are concentrically arranged. The bottom of middle part sliding block 64 has seted up arc guide slot 28, and the inside of arc guide slot 28 is provided with wear-resisting cover 29, and wear-resisting cover 29 cover is established on arc guide rail 27, and middle part sliding block 64 slides through wear-resisting cover 29 and links to each other with arc guide rail 27.

The middle sliding block 64 is provided with an arc-shaped placing groove 10 near the side wall of the external connecting block 63, and the placing groove 10 and the middle sliding block 64 are concentrically arranged. A plurality of fins 11 are uniformly distributed in the placing groove 10, and each fin 11 is arranged along the radial direction of the middle sliding block 64. The steam sprayed from the steam inlet pipe 7/the cooling water sprayed from the cooling water inlet pipe 30 impinges on the fins 11 to drive the middle sliding block 64 to slide in the sliding groove 9.

The inside of standing groove 10 is provided with curved expansion plate 12, and expansion plate 12 includes a plurality of telescoping units 121 with fin 11 one-to-one, and a plurality of telescoping units 121 cup joint in proper order, and the middle part of telescoping unit 121 runs through and is provided with through-hole 13, and fin 11 passes from the through-hole 13 that corresponds telescoping unit 121. When the expansion board 12 moves toward the inside of the placing chute 10, the expansion units 121 approach each other, and the length of the expansion board 12 is shortened. A plurality of first springs 14 are arranged between the inner groove wall of the placing groove 10 close to the lower mold core 5 and the expansion plate 12, the plurality of first springs 14 are evenly distributed inside the placing groove 10, and the first springs 14 are used for pushing the expansion plate 12 to one side of the notch of the placing groove 10.

The groove bottom of the sliding groove 9 is provided with a limiting groove 15, and the limiting groove 15 is hemispherical. The bottom of the middle sliding block 64 is provided with a groove 16, the groove 16 is used for being communicated with the limiting groove 15, a second spring 17 is fixed at the inner groove wall of the top of the groove 16, a positioning ball 18 is arranged at the bottom of the second spring 17, and the second spring 17 is used for pushing the positioning ball 18 into the limiting groove 15. The positioning balls 18 cooperate with the limiting grooves 15 to position the middle sliding block 64 such that the side walls of the middle sliding block 64 are flush with the side walls of the outer connecting block 63 and the side walls of the inner forming block 62.

The placing groove 10 is provided with a guide groove 19 near the inner groove wall of the lower mold core 5, and the guide groove 19 is arranged along the radial direction of the placing groove 10. The side wall of the expansion plate 12 close to the lower mold core 5 is provided with a guide rod 20, and the guide rod 20 is connected inside the guide groove 19 in a sliding manner. Connecting hole 21 is opened to middle part sliding block 64 inside, connecting hole 21 sets up along the axial of middle part sliding block 64, connecting hole 21 intercommunication guide way 19 and recess 16, connecting hole 21 is provided with connecting rope 22, the inner wall department at guide way 19 is fixed to the one end of connecting rope 22, guide bar 20 can promote connecting rope 22 when sliding in guide way 19, the other end of connecting rope 22 is connected in locating ball 18, when guide bar 20 promotes connecting rope 22, connecting rope 22 can pull the reference column into inside recess 16.

Two mounting grooves 23 are symmetrically arranged on two sides of the placing groove 10, the mounting grooves 23 penetrate through the middle sliding block 64 along the axial direction of the middle sliding block 64, sealing rubber blocks 24 are arranged inside the mounting grooves 23, and the sealing rubber blocks 24 protrude out of the notches of the mounting grooves 23 and are abutted to the external connecting blocks 63.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A forming die of a foam die for a lost foam comprises a die shell (1), a plurality of movable tiles (6) arranged inside the die shell (1) in a sliding manner, an upper die plate (2) arranged above the die shell (1), an upper die core (3) arranged at the bottom surface of the upper die plate (2), a lower die plate (4) arranged below the die shell (1), and a lower die core (5) arranged at the top surface of the lower die plate (4), wherein a steam inlet pipe (7) is arranged at the position, opposite to the movable tiles (6), of the die shell (1), the steam inlet pipe (7) is communicated with the inner cavity of the movable tiles (6), a drain pipe (8) is arranged on the die shell (1), and the drain pipe (8) is communicated with the inner cavity of the movable tiles (6); the method is characterized in that: the movable tile blocks (6) comprise bottom plates (61), inner forming blocks (62) are arranged at the positions, close to the lower mold core (5), of the tops of the bottom plates (61), outer connecting blocks (63) are arranged at the positions, far away from the lower mold core (5), of the tops of the bottom plates (61), arc-shaped sliding grooves (9) are formed between the inner forming blocks (62) and the outer connecting blocks (63), and when the movable tile blocks (6) are sequentially abutted, the sliding grooves (9) on the movable tile blocks (6) are sequentially communicated to form a closed sliding cavity; the steam inlet pipe (7) penetrates through the external connecting block (63) and is communicated with the sliding groove (9); the sliding groove (9) is connected with a middle sliding block (64) in an internal sliding mode, the middle sliding block (64) is close to the side wall of the external connecting block (63) and is provided with an arc-shaped placing groove (10), a plurality of fins (11) are uniformly distributed in the placing groove (10), and the fins (11) are arranged along the radial direction of the placing groove (10).

2. The mold for forming a foam mold for a lost foam according to claim 1, wherein: an arc-shaped telescopic plate (12) is arranged inside the placing groove (10), the telescopic plate (12) comprises a plurality of telescopic units (121) which are in one-to-one correspondence with the fins (11), the telescopic units (121) are sequentially sleeved, a through hole (13) penetrates through the middle of each telescopic unit (121), and the fins (11) penetrate through the through holes (13) corresponding to the telescopic units (121); a first spring (14) is arranged between the inner groove wall of the placing groove (10) close to the lower mold core (5) and the expansion plate (12), and the first spring (14) is used for pushing the expansion plate (12) to one side of the groove opening of the placing groove (10).

3. The mold for forming a foam mold for a lost foam according to claim 2, wherein: spacing groove (15) have been seted up to the tank bottom department of sliding tray (9), recess (16) are seted up to the bottom of middle part sliding block (64), recess (16) are used for the intercommunication spacing groove (15), the interior cell wall department at recess (16) top is fixed with spring two (17), the bottom of spring two (17) is provided with location pearl (18), spring two (17) be used for with location pearl (18) push spacing groove (15) are inside.

4. A forming die for a foam mold for a lost foam according to claim 3, wherein: a guide groove (19) is arranged on the inner groove wall of the placing groove (10) close to the lower mold core (5), the guide groove (19) is arranged along the radial direction of the placing groove (10), the side wall of the expansion plate (12) close to the lower mold core (5) is provided with a guide rod (20), the guide rod (20) is connected in the guide groove (19) in a sliding way, a connecting hole (21) is formed in the middle sliding block (64), the connecting hole (21) communicates the guide groove (19) and the recess (16), the connecting hole (21) is provided with a connecting rope (22), one end of the connecting rope (22) is fixed at the inner groove wall of the guide groove (19), and the guide rod (20) can push the connecting rope (22) when sliding in the guide groove (19), the other end of the connecting rope (22) is connected to the positioning bead (18).

5. The mold for forming a foam mold for a lost foam according to claim 1, wherein: the bilateral symmetry of standing groove (10) is provided with two mounting grooves (23), mounting groove (23) along the axial of middle part sliding block (64) run through in middle part sliding block (64), mounting groove (23) inside is provided with sealing rubber piece (24), sealing rubber piece (24) protrusion in the notch of mounting groove (23) and with outside connecting block (63) are inconsistent.

6. The mold for forming a foam mold for a lost foam according to claim 1, wherein: a guide post (25) penetrates through the opposite position of the mould shell (1) and the movable tile block (6), and the end part of the guide post (25) extending into the mould shell (1) is fixedly connected to the movable tile block (6); the end part, exposed out of the die shell (1), of the guide column (25) is provided with a limiting flange (26), the limiting flange (26) protrudes out of the side wall of the guide column (25), and the limiting flange (26) is used for abutting against the outer wall of the die shell (1).

7. The mold for forming a foam mold for a lost foam according to claim 1, wherein: the tank bottom department of sliding tray (9) is provided with arc guide rail (27), the guide rail with sliding tray (9) are concentric setting, arc guide slot (28) have been seted up to the bottom of middle part sliding block (64), arc guide rail (27) with arc guide slot (28) slide and link to each other.

8. The mold for forming a foam mold for a lost foam according to claim 7, wherein: the inside of arc guide slot (28) is provided with wear-resisting cover (29), wear-resisting cover (29) cover is located arc guide rail (27), just wear-resisting cover (29) can be followed arc guide rail (27) slide.