CN218310781U - Mold core-pulling ejection structure suitable for deep groove type hub - Google Patents

Abstract

The utility model relates to the technical field of wheel hub molds, and discloses a mold core-pulling ejection structure suitable for a deep groove type wheel hub, which solves the problem of the cost waste of the related processes of the groove molding aluminum and the aluminum processing of the current wheel hub blank, and comprises the wheel hub blank, wherein the inner side of the wheel hub blank is provided with a top mold, the lower end of the inner part of the top mold is circumferentially connected with a shell, the shell is connected with the top mold through a locking column, and one end of the inner side of the shell is connected with a supporting fixed block through a bolt nine; meanwhile, the part is cast along with the shape, so that the shrinkage porosity defect of the part is reduced, the extra machining consumption is reduced, the machining cost is reduced, the requirement of field production is well met, and the requirements of different hub customer shape differentiation and hub light weight, namely the wheel well groove shape, are met.

Description

Mold core-pulling ejection structure suitable for deep groove type hub

Technical Field

The utility model belongs to the technical field of the wheel hub mould, specifically be a mould knockout structure suitable for deep groove type wheel hub.

Background

With the requirements of different hub customer model differentiation and hub light weight, more and more wheel types have groove models at the wheel well position. Generally, the groove molding solution at the position is to cast the whole groove molding in a die-casting hub blank and then process the groove molding by adopting a turning method. But the defect of this method is that a lot of aluminum is wasted in the die-casting blank, less is hundreds of grams, more is one kilogram, and great cost waste of aluminum related procedures such as aluminum liquid smelting and recycling is generated; meanwhile, the part has a deeper shape, so that the defects of shrinkage porosity and the like are easy to occur, waste products after die casting and even turning are easy to generate, the rate of finished products is influenced, and the cost is wasted; and the part needs to be turned completely, so that extra processing consumption is increased, the cost is increased, and great challenges are brought to field production. Therefore, a solution that can mold the groove shape at the position is urgently needed.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned condition, for overcoming prior art's defect, the utility model provides a mould ejecting structure of loosing core suitable for deep groove type wheel hub, the effectual problem of having solved the relevant process cost waste of present wheel hub blank slot shaping aluminium and aluminum treatment.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an ejecting structure of mould loosing core suitable for deep groove type wheel hub, including the wheel hub blank, wheel hub blank inboard is equipped with the top mould, the inside lower extreme circumferential connection of top mould has the casing, the casing is connected with the top mould through the locking post, casing inboard one end is connected with the support fixed block through nine bolts, casing one side is connected with the clamp plate through bolt one, the inside upper gear that has rotated from top to bottom in proper order of casing, well gear and lower gear, casing one side is equipped with ejecting block, ejecting block upper end is connected with the briquetting through bolt two, briquetting upper end middle part is connected with fixed column one, the briquetting upper end just lies in fixed column one both sides and all is connected with fixed column two, fixed column one upper end is connected with guide toothed plate one, two upper ends of two fixed columns all are connected with guide toothed plate two, all connect through bolt three between guide toothed plate one and the fixed column one and guide toothed plate two and the fixed column two, guide toothed plate one and two guide toothed plate one end all extend to the casing inside and are connected with lower gear engagement.

Preferably, the upper end of the top die is connected with a top die plate through a fourth bolt, a connecting plate is arranged above the top die plate, the lower end of the connecting plate is circumferentially connected with a jacking plate, the jacking plate is connected with the connecting plate through a fifth bolt, and the inner side of the jacking plate is connected with an annular fixed plate through a sixth bolt.

Preferably, the cross section of the ejection plate is arranged in a T-shaped structure, a tooth socket is formed in one side of the lower portion of the ejection plate, and the tooth socket is connected with the upper gear in a meshed mode.

Preferably, the connecting plate below is equipped with the ejector pin hypoplastron, and ejector pin hypoplastron upper end circumference through connection has little ejector pin, and little ejector pin lower extreme runs through ejector plate and ejector die and the contact of wheel hub blank upper end, and ejector pin hypoplastron upper end just is located the outside bilateral symmetry of ejector plate and is equipped with the fixed cover one of ejector plate and the fixed cover two of ejector plate, and the fixed cover one of ejector plate and the fixed cover two of ejector plate all are connected with the ejector pin hypoplastron through the fixed pin.

Preferably, the upper end of the ejector rod lower plate is connected with an ejector rod upper plate, the ejector rod upper plate is sleeved outside a first ejector plate fixing sleeve and a second ejector plate fixing sleeve, a stepped connecting column is embedded in the circumferential direction of the upper end of the ejector rod lower plate and connected with a connecting plate through a seventh bolt, connecting columns are connected to four corners of the upper end of the connecting plate, a stripper plate is sleeved outside the connecting column and located on the connecting plate, and a U-shaped clamp is clamped on the upper portion of the connecting column.

Preferably, the lower part of the connecting column is in a threaded columnar structure, the upper part of the connecting column is provided with an annular groove, and the U-shaped clamp is clamped in the annular groove.

Preferably, four corners of the upper end of the top template are connected with supporting columns, and the supporting columns are connected with the top template through eight bolts.

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

(1) The utility model discloses a stripper plate connection connecting plate to drive the tooth's socket position of liftout plate and the last gear meshing in the casing, cooperate through multistage change gear, then drive guide toothed plate one and guide toothed plate two movements, thereby drive the ejecting piece and move in the ejecting mould, realize withdrawing and stretching out of ejecting piece, and then control the processingamount at wheel hub blank slot position; because the groove part is cast out by partial following-up, the amount of aluminum used for die-casting blanks is reduced, and the cost waste of aluminum related procedures such as aluminum liquid smelting, recovery and the like is reduced; meanwhile, the part is cast along with the shape, so that the shrinkage porosity defect of the part is reduced, the extra machining consumption is reduced, the machining cost is reduced, the requirement of field production is well met, and the requirements of customer shape differentiation and hub light weight of different hubs, namely the wheel well groove shape, are met;

(2) By utilizing the power of the oil cylinder of the die-casting machine table and the secondary ejection mechanism consisting of the connecting plate and the ejector rod upper plate, the ejection and the withdrawal of the ejection block are ensured, the ejection of the wheel hub blank is also ensured, no extra power cost is paid, and the continuous production is also ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the connection structure of the annular fixing plate of the present invention;

fig. 4 is a schematic view of the transmission structure of the ejection block of the present invention;

FIG. 5 is a schematic view of the ejector plate of the present invention;

FIG. 6 is a partial exploded view of the present invention;

FIG. 7 is a schematic structural view of the connecting column of the present invention;

fig. 8 is a schematic view of a connection structure of a bolt eight of the present invention;

in the figure: 1. a hub blank; 2. carrying out top die; 3. a housing; 4. a locking post; 5. a first bolt; 6. pressing a plate; 7. an upper gear; 8. a middle gear; 9. a lower gear; 10. ejecting a block; 11. a second bolt; 12. briquetting; 13. fixing a first column; 14. fixing a second column; 15. a first guide toothed plate; 16. a second guide toothed plate; 17. a third bolt; 18. a fourth bolt; 19. a top template; 20. a connecting plate; 21. ejecting the plate; 22. a fifth bolt; 23. a sixth bolt; 24. an annular fixed plate; 25. a tooth socket; 26. a mandril lower plate; 27. a small ejector rod; 28. the ejection plate is fixedly sleeved with the first sleeve; 29. a second ejection plate fixing sleeve; 30. a fixing pin; 31. a mandril is arranged on the plate; 32. a stepped connecting column; 33. a seventh bolt; 34. connecting columns; 35. a stripper plate; 36. a U-shaped card; 37. a support post; 38. eighthly, bolts; 39. a ninth bolt; 40. and supporting the fixing block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1-5, the utility model comprises a hub blank 1, a top mold 2 is arranged at the inner side of the hub blank 1, a shell 3 is circumferentially connected to the lower end of the inner part of the top mold 2, the shell 3 is connected to the top mold 2 through a locking column 4, one end of the inner side of the shell 3 is connected to a supporting fixed block 40 through a bolt nine 39, a press plate 6 is connected to one side of the shell 3 through a bolt one 5, an upper gear 7, a middle gear 8 and a lower gear 9 are sequentially and rotatably connected to the inner part of the shell 3 from top to bottom, an ejection block 10 is arranged at one side of the shell 3, a press block 12 is connected to the upper end of the ejection block 10 through a bolt two 11, a fixed column one 13 is connected to the middle part of the upper end of the press block 12, fixed column two 14 are connected to the upper end of the press block 12 and located at both sides of the fixed column one 13, a guiding toothed plate one 15 is connected to the upper end of the fixed column one 13, a guiding toothed plate two 16 are connected to the two guiding toothed plates 14, the first guide toothed plate 15 and the first fixing column 13, and the second guide toothed plate 16 and the second fixing column 14 are connected through a third bolt 17, one end of each of the first guide toothed plate 15 and the two second guide toothed plates 16 extends into the shell 3 and is meshed with the lower gear 9, the upper end of the top die 2 is connected with a top die plate 19 through a fourth bolt 18, a connecting plate 20 is arranged above the top die plate 19, the lower end of the connecting plate 20 is circumferentially connected with a top plate 21, the top plate 21 is connected with the connecting plate 20 through a fifth bolt 22, the inner side of the top plate 21 is connected with an annular fixing plate 24 through a sixth bolt 23, the cross section of the top plate 21 is arranged in a T-shaped structure, a tooth groove 25 is formed in one side of the lower portion of the top plate 21, the tooth groove 25 is meshed with the upper gear 7, a lower ejector rod lower plate 26 is arranged below the connecting plate 20, a small ejector rod 27 is circumferentially connected with the upper end of the ejector rod lower plate 26 in a penetrating manner, the lower end of the small ejector rod 27 penetrates through the top die plate 19 and the top die 2 to be contacted with the upper end of the hub blank 1, the upper end of the ejector rod lower plate 26 and located on the two sides of the outer portion of the ejector plate 21 are symmetrically provided with ejector plate fixing sleeves I28 and ejector plate fixing sleeves II 29, the ejector plate fixing sleeves I28 and the ejector plate fixing sleeves II 29 are connected with the ejector rod lower plate 26 through fixing pins 30, the upper end of the ejector rod lower plate 26 is connected with an ejector rod upper plate 31, the ejector rod upper plate 31 is sleeved outside the ejector plate fixing sleeves I28 and the ejector plate fixing sleeves II 29, a stepped connecting column 32 is embedded in the circumferential direction of the upper end of the ejector rod lower plate 26, the stepped connecting column 32 is connected with the connecting plate 20 through a seven-bolt 33, four corners of the upper end of the connecting plate 20 are connected with connecting columns 34, the outer portion of the connecting column 34 and located on the upper end of the connecting plate 20 are sleeved with a demolding plate 35, the upper portions of the connecting columns 34 are connected with U-shaped clamps 36 in a clamping mode, the lower portions of the connecting columns 34 are in a threaded columnar structure, annular grooves are formed in the upper portions of the U-shaped clamps 36, four corners of the upper end of the ejector plate 19 are connected with supporting columns 37, and the supporting columns 37 are connected with the ejector plate 19 through eight-bolt 38.

The working principle is as follows: when the die is used, when the die is installed on a die-casting machine, firstly, the support column 37 is connected to the die-casting machine through the T-shaped bolt, then the connecting column 34 is inserted into a corresponding hole of the stripper plate 35 fixed on the oil cylinder of the die-casting machine and locked by the U-shaped clamp 36, and therefore the assembly of the die is completed;

and (3) withdrawing:

after the wheel hub blank 1 is die-cast, firstly opening a side die (forming an outer rim part of the wheel hub blank 1, not shown in the drawing), then driving the whole ejector plate 19 and accessories thereof and the wheel hub blank 1 to ascend through a support 37 by a die-casting machine, then driving a connecting plate 20 by a central oil cylinder of the die-casting machine through a demoulding plate 35 so as to drive an ejector plate 21 to move downwards, enabling an ejector block 10 to just retract into the ejector die 2 when the lower end face of the connecting plate 20 is contacted with an ejector rod upper plate 31 through a tooth groove 25 part at the lower part of the ejector plate 21, an upper gear 7, a middle gear 8, a lower gear 9, a guide toothed plate I15 and a guide toothed plate II 16 through a matched transmission design, ejecting a stepped connecting column 32 from an ejector rod lower plate 26 at the moment, then continuously pressing down the guide toothed plate 35, and ejecting the wheel hub blank 1 through a small ejector rod 27;

ejecting:

the central oil cylinder of the die-casting machine table drives the connecting plate 20 through the stripping plate 35, and further drives the ejector plate 21 to move upwards, the lower end face of the connecting plate 20 is separated from the ejector rod upper plate 31 through the matching transmission of the tooth groove 25 part of the lower part of the ejector plate 21, the upper gear 7, the middle gear 8, the lower gear 9, the guide toothed plate I15 and the guide toothed plate II 16, the ejector block 10 extends out of the ejector mold 2, the stepped connecting column 32 is inserted into the ejector rod lower plate 26 at the moment, then the stripping plate 35 is continuously lifted, the small ejector rod 27 is lifted to a specified position, and then the side molds are closed; repeating the above actions, and starting the production of the next hub blank 1.

Claims (7)

1. The utility model provides an ejecting structure of mould core pulling suitable for deep groove type wheel hub, includes wheel hub blank (1), its characterized in that: the inner side of the wheel hub blank (1) is provided with a top die (2), the lower end of the inner part of the top die (2) is circumferentially connected with a shell (3), the shell (3) is connected with the top die (2) through a locking column (4), one end of the inner side of the shell (3) is connected with a supporting fixed block (40) through a bolt nine (39), one side of the shell (3) is connected with a pressing plate (6) through a bolt I (5), the inner part of the shell (3) is sequentially and rotatably connected with an upper gear (7), a middle gear (8) and a lower gear (9) from top to bottom, one side of the shell (3) is provided with an ejection block (10), the upper end of the ejection block (10) is connected with a pressing block (12) through a bolt II (11), the middle part of the upper end of the pressing block (12) is connected with a first fixed column (13), the upper end of the pressing block (12) is positioned at two sides of the first fixed column (13) and connected with a second fixed column (14), the upper end of the first fixed column (13) is connected with a first guide toothed plate (15), the two fixed columns (14) and the upper ends of the two fixed columns (14) are connected with a second guide toothed plate (17) through a bolt II (17), one ends of the first guide toothed plates (15) and the second guide toothed plates (16) extend into the shell (3) and are connected with the lower gear (9) in a meshed mode.

2. The mold core pulling and ejecting structure suitable for the deep groove type hub as claimed in claim 1, wherein: the upper end of the ejecting die (2) is connected with an ejecting die plate (19) through a bolt four (18), a connecting plate (20) is arranged above the ejecting die plate (19), an ejecting plate (21) is circumferentially connected to the lower end of the connecting plate (20), the ejecting plate (21) is connected with the connecting plate (20) through a bolt five (22), and the inner side of the ejecting plate (21) is connected with an annular fixing plate (24) through a bolt six (23).

3. The mold core pulling and ejecting structure suitable for the deep groove type hub as claimed in claim 2, wherein: the section of the ejection plate (21) is in a T-shaped structure, a tooth groove (25) is formed in one side of the lower portion of the ejection plate (21), and the tooth groove (25) is meshed with the upper gear (7) and connected with the lower gear.

4. The mold core-pulling and ejecting structure suitable for the deep groove type hub as claimed in claim 2, wherein: connecting plate (20) below is equipped with ejector pin hypoplastron (26), and ejector pin hypoplastron (26) upper end circumference through connection has little ejector pin (27), and the ejector pin (27) lower extreme runs through ejector plate board (19) and ejector die (2) and the contact of wheel hub blank (1) upper end, and ejector pin hypoplastron (26) upper end just is located ejector plate (21) outside bilateral symmetry and is equipped with the fixed cover of ejector plate one (28) and the fixed cover of ejector plate two (29), and the fixed cover of ejector plate one (28) and the fixed cover of ejector plate two (29) all are connected with ejector pin hypoplastron (26) through fixed pin (30).

5. The mold core-pulling and ejecting structure suitable for the deep groove type hub as claimed in claim 4, wherein: the ejection plate fixing device is characterized in that an ejection rod upper plate (31) is connected to the upper end of an ejection rod lower plate (26), the ejection plate fixing sleeve I (28) and the ejection plate fixing sleeve II (29) are sleeved with the ejection rod upper plate (31), a stepped connecting column (32) is embedded in the circumferential direction of the upper end of the ejection rod lower plate (26), the stepped connecting column (32) is connected with a connecting plate (20) through a bolt seven (33), connecting columns (34) are connected to four corners of the upper end of the connecting plate (20), a demolding plate (35) is sleeved on the outer portion of the connecting column (34) and located on the connecting plate (20), and a U-shaped clamp (36) is clamped on the upper portion of the connecting column (34).

6. The mold core pulling and ejecting structure suitable for the deep groove type hub as claimed in claim 5, wherein: the lower part of the connecting column (34) is in a threaded columnar structure, an annular groove is formed in the upper part of the connecting column (34), and the U-shaped clamp (36) is clamped in the annular groove.

7. The mold core-pulling and ejecting structure suitable for the deep groove type hub as claimed in claim 2, wherein: four corners of the upper end of the top template (19) are connected with support columns (37), and the support columns (37) are connected with the top template (19) through bolts (38).

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