CN218903334U - Subway bolt die casting die - Google Patents

Abstract

The utility model discloses a subway bolt die casting die which comprises a fixed die and a movable die, wherein the movable die is positioned at the top end of the fixed die, the top end of the fixed die is provided with a top groove, the lower surface of the movable die is provided with a male die matched with the top groove in size, the inner bottom wall of the top groove is provided with a plurality of cavities for placing bolt blanks, the bottom end of the fixed die is provided with a bottom groove, and a plurality of through holes are formed between the cavities and the bottom groove. According to the utility model, the fixed die and the movable die are arranged, a plurality of cavities are arranged in the top groove at the top end of the fixed die, a plurality of bolts can be simultaneously die-cast, the bottom groove is arranged at the bottom end of the fixed die, the movable plate capable of moving up and down is arranged in the bottom groove, the ejector rod extending into the cavities is fixed on the surface of the movable plate, and the cam is driven to rotate by rotating the hand wheel, so that the cam pushes the movable plate to move upwards, the ejector rod can be used for ejecting the bolts from the cavities, the bolts which are die-cast can be conveniently and rapidly taken out, and the material taking efficiency is improved.

Description

Subway bolt die casting die

Technical Field

The utility model relates to the technical field of die casting dies, in particular to a subway bolt die casting die.

Background

The subway bolt is used as a structure of a tunnel supporting system, is an important part of a tunnel structure, is an outermost barrier of a tunnel, plays roles in resisting soil layer pressure, underground water pressure and some special loads, is assembled while the tunnel is propelled, and the quality of a duct piece is directly related to the integral quality and safety of the tunnel, so that the waterproof performance and durability of the tunnel are affected.

At present, subway bolts are formed by die casting through a die casting die, a blank piece which is heated to be red is placed into a die cavity during die casting, and then the die is die-cast through upper and lower die closing, but the die structures are very simple, after each die casting is completed, the die-cast bolts need to be manually pulled out of the die cavity by pliers, and each die can only form one bolt at a time, so that the production efficiency is low. Secondly, the bolt after die casting molding still keeps high temperature, and the existing die does not have the function of cooling down the bolt.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a subway bolt die casting die.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a subway bolt die casting die, includes cover half and movable mould, the movable mould is located the cover half top, and the roof groove has been seted up on the cover half top, the movable mould lower surface is equipped with the terrace die that matches with roof groove size, a plurality of die cavities that are used for placing the bolt blank have been seted up to the interior bottom wall of roof groove, a plurality of the die cavity has all been seted up the perforation between the bottom groove, roof wall is fixed with a plurality of dead levers in the bottom groove, and a plurality of dead lever surface joint sliding connection has the movable plate, movable plate upper surface is fixed with a plurality of ejector pins that correspond the perforation, and the ejector pin top is located the perforation inside, roof groove inner wall is fixed with a plurality of shower nozzles, the cover half top outside is fixed with the ring pipe, and a plurality of the shower nozzles all are connected with the ring pipe.

Furthermore, four corners of the upper surface of the fixed die are respectively fixed with a positioning rod, and four corners of the lower surface of the movable die are respectively provided with a positioning groove matched and clamped with the positioning rods, so that the fixed die and the movable die can be positioned through the positioning rods and the positioning grooves.

Further, the bottom groove middle part rotates and is connected with the pivot, the pivot middle part is fixed with the cam, and cam side and movable plate lower surface laminating, pivot one end passes the bottom groove lateral wall and extends to the cover half outside and fixedly connected with hand wheel, drives pivot and cam through rotating the hand wheel and rotates, and the cam can move the movable plate and reciprocate.

Further, the baffle is fixed to the dead lever bottom, baffle and movable plate lower surface fixedly connected with spring, and when the narrow limit of cam and movable plate subsides, the spring can stimulate the movable plate and descend to reset.

Further, the perforation diameter is smaller than the cavity bottom inner diameter so that the bolt blank does not leak out of the perforation.

Further, annular tube one side fixedly connected with inlet tube, and the inlet tube other end passes through flange and external water piping connection, can be with annular tube and shower nozzle water injection through the inlet tube for the shower nozzle can spray water smoke and cool down the bolt.

Furthermore, a valve is fixed in the middle of the water inlet pipe, and the spray head can be controlled to be opened or closed through the valve.

The utility model has the beneficial effects that:

1. when the die casting device is used, the plurality of die cavities are arranged in the top groove at the top end of the fixed die, so that a plurality of bolts can be die-cast at the same time, the bottom groove is arranged at the bottom end of the fixed die, the movable plate capable of moving up and down is arranged in the bottom groove, the ejector rod extending into the die cavities is fixed on the surface of the movable plate, and the cam is driven to rotate by rotating the hand wheel, so that the cam pushes the movable plate to move upwards, the bolts can be ejected out of the die cavities by the ejector rod, the die-cast bolts can be conveniently and rapidly taken out, and the material taking efficiency is improved.

2. When the die casting device is used, the annular pipe is fixed on the outer side of the fixed die, the plurality of spray heads communicated with the annular pipe are fixed on the inner wall of the top groove, one side of the annular pipe is connected with the water inlet pipe, after die casting is finished, the valve on the water inlet pipe can be opened, so that water is sprayed to the surface of the bolt through the spray heads, the cooling effect is achieved, and the temperature of workers is not too high when the workers take out the bolt.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model;

fig. 3 is an enlarged view of the utility model at a.

Legend description:

1. a fixed mold; 2. a movable mold; 3. a top groove; 4. a male die; 5. a positioning rod; 6. a positioning groove; 7. a cavity; 8. a bottom groove; 9. perforating; 10. a fixed rod; 11. a moving plate; 12. a push rod; 13. a baffle; 14. a spring; 15. a rotating shaft; 16. a cam; 17. a hand wheel; 18. an annular tube; 19. a spray head; 20. a water inlet pipe; 21. and (3) a valve.

Detailed Description

As shown in fig. 1-3, relate to a subway bolt die casting die, including cover half 1 and movable mould 2, movable mould 2 is located the cover half 1 top, and cover half 1 top has seted up roof groove 3, movable mould 2 lower surface is equipped with the terrace die 4 with roof groove 3 size matching, a plurality of die cavities 7 that are used for placing the bolt blank have been seted up to roof groove 3 inner bottom, the kerve 8 has been seted up to cover half 1 bottom, perforation 9 has all been seted up between a plurality of die cavities 7 and the kerve 8, the roof wall is fixed with a plurality of dead levers 10 in the kerve 8, and a plurality of dead levers 10 surface sliding connection jointly has movable plate 11, movable plate 11 upper surface is fixed with a plurality of ejector pins 12 that correspond perforation 9, and ejector pin 12 top is located perforation 9 inside, roof groove 3 inner wall is fixed with a plurality of shower nozzles 19, cover half 1 top outside is fixed with annular pipe 18, a plurality of shower nozzles 19 all are connected with annular pipe 18.

As shown in fig. 1 and 2, four corners of the upper surface of the fixed die 1 are respectively fixed with a positioning rod 5, four corners of the lower surface of the movable die 2 are respectively provided with a positioning groove 6 matched and clamped with the positioning rods 5, and the fixed die 1 and the movable die 2 can be positioned through the positioning rods 5 and the positioning grooves 6.

As shown in fig. 1 and 2, the middle part of the bottom groove 8 is rotatably connected with a rotating shaft 15, a cam 16 is fixed in the middle part of the rotating shaft 15, the side edge of the cam 16 is attached to the lower surface of the moving plate 11, and one end of the rotating shaft 15 penetrates through the side wall of the bottom groove 8 to extend to the outer side of the fixed mold 1 and is fixedly connected with a hand wheel 17. The baffle 13 is fixed at the bottom end of the fixed rod 10, and the baffle 13 is fixedly connected with a spring 14 on the lower surface of the movable plate 11. The diameter of the through hole 9 is smaller than the inner diameter of the bottom of the cavity 7, the rotating shaft 15 and the cam 16 are driven to rotate by rotating the hand wheel 17, and the cam 16 can push the moving plate 11 to move upwards, so that the ejector rod 12 passes through the through hole 9 to eject a bolt in the cavity 7.

As shown in fig. 2 and 3, one side of the annular tube 18 is fixedly connected with a water inlet tube 20, and the other end of the water inlet tube 20 is connected with an external water tube through a flange. A valve 21 is fixed in the middle of the water inlet pipe 20, water enters the spray head 19 from the water inlet pipe 20 by opening the valve 21, and then the water is sprayed out from the spray head 19 to cool the bolt.

When in use, the utility model is characterized in that: the heated and reddened bolt blank is placed into a plurality of cavities 7 at the top end of the fixed die 1, then when the hydraulic device drives the movable die 2 to descend, the male die 4 is clamped into the top groove 3, die casting of the bolt is achieved, after die casting is completed, the valve 21 is opened, the spray head 19 sprays water mist to cool the bolt, then the rotating shaft 15 and the cam 16 are driven to rotate through the rotating hand wheel 17, the cam 16 can push the movable moving plate 11 to move upwards, and accordingly the ejector rod 12 penetrates through the through hole 9 to eject the bolt in the cavity 7.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (7)

1. The utility model provides a subway bolt die casting die which characterized in that: including cover half (1) and movable mould (2), movable mould (2) are located cover half (1) top, and cover half (1) top has been seted up footwell (3), movable mould (2) lower surface be equipped with terrace die (4) of footwell (3) size matching, a plurality of die cavities (7) that are used for placing the bolt blank have been seted up to footwell (3) interior bottom, cover half (1) bottom has been seted up footwell (8), a plurality of perforation (9) have all been seted up between die cavity (7) and footwell (8), the roof is fixed with a plurality of dead levers (10), and a plurality of dead levers (10) surface joint sliding connection has movable plate (11), movable plate (11) upper surface is fixed with ejector pin (12) of a plurality of corresponding perforation (9), and ejector pin (12) top is located inside perforation (9), footwell (3) inner wall is fixed with a plurality of shower nozzles (19), cover half (1) top outside is fixed with annular pipe (18), a plurality of shower nozzles (19) are all connected with annular pipe (18).

2. A subway bolt die casting mold according to claim 1, wherein: four corners of the upper surface of the fixed die (1) are respectively fixed with a positioning rod (5), and four corners of the lower surface of the movable die (2) are respectively provided with a positioning groove (6) matched and clamped with the positioning rods (5).

3. A subway bolt die casting mold according to claim 1, wherein: the middle part of the bottom groove (8) is rotationally connected with a rotating shaft (15), a cam (16) is fixed in the middle of the rotating shaft (15), the side edge of the cam (16) is attached to the lower surface of the movable plate (11), and one end of the rotating shaft (15) penetrates through the side wall of the bottom groove (8) to extend to the outer side of the fixed die (1) and is fixedly connected with a hand wheel (17).

4. A subway bolt die casting mold according to claim 1, wherein: the bottom end of the fixed rod (10) is fixedly provided with a baffle plate (13), and the lower surfaces of the baffle plate (13) and the movable plate (11) are fixedly connected with springs (14).

5. A subway bolt die casting mold according to claim 1, wherein: the diameter of the through hole (9) is smaller than the inner diameter of the bottom of the cavity (7).

6. A subway bolt die casting mold according to claim 1, wherein: one side of the annular pipe (18) is fixedly connected with a water inlet pipe (20), and the other end of the water inlet pipe (20) is connected with an external water pipe through a flange.

7. The subway bolt die casting die according to claim 6, wherein: a valve (21) is fixed in the middle of the water inlet pipe (20).

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