CN107335791B

CN107335791B - Automatic recovery device for casting waste

Info

Publication number: CN107335791B
Application number: CN201710602077.XA
Authority: CN
Inventors: 张海宽; 于大宽
Original assignee: Dachuan Jinggong Chaoyang Co ltd
Current assignee: Dachuan Jinggong Chaoyang Co ltd
Priority date: 2017-07-21
Filing date: 2017-07-21
Publication date: 2022-12-06
Anticipated expiration: 2037-07-21
Also published as: CN107335791A

Abstract

The invention provides an automatic recovery device for casting waste, which comprises a waste recovery device arranged on a lower die base, wherein the waste recovery device comprises a support, the support is arranged on a rotating shaft, the other end of the support is provided with an annular fixed plate corresponding to a conical through hole respectively, an annular movable plate is arranged below the annular fixed plate, a replaceable filter screen is arranged between the annular fixed plate and the annular fixed plate, the upper surface of the fixed plate is partially convex, and the rotating shaft is of a telescopic structure. The automatic recovery device for the casting waste is designed aiming at the problems of the defects of the prior art and waste of the waste in the casting process, ensures that the waste can be smoothly separated from the casting and recycled for the casting with a symmetrical structure, does not need manual operation of workers, improves the utilization rate of raw materials, saves the cost and ensures the safety of the workers.

Description

Automatic recovery device for casting waste

Technical Field

The invention belongs to the field of die-casting molds, and particularly relates to an automatic recovery device for casting part waste.

Background

With the development of society, automobiles have become the first considered travel tool for people to travel, and the demand is increased gradually, so that the processing industry of automobile parts faces greater challenges, due to the increase of the demand and the improvement of requirements of people, not only the production efficiency needs to be improved, but also better quality needs to be ensured in the production process of the automobile parts, a special die needs to be specially designed for the casting industry for producing the automobile parts according to the structures of different parts, the existing die-casting die generally only comprises the die opening and die closing of a male die and a female die, for the die fed from the bottom, the structure is single, the waste of a pouring gate part is not easy to take out, and the damage of a contact part is easily caused.

Disclosure of Invention

In view of the above, the present invention is directed to provide an automatic recycling device for casting waste, which adds a waste recycling device on an existing mold structure through improvement of the existing mold structure, so as to ensure that a casting and the waste are automatically separated during demolding, and the waste can be automatically separated from the mold, so that the waste is conveniently recycled, the cost is saved, the labor force is saved, the working efficiency is improved, and the safety of workers is ensured.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

automatic recovery unit is used to casting member waste material, including arranging the waste recovery unit on the die holder in, waste recovery unit includes the support, the support is arranged in the axis of rotation, be in through slewing mechanism rotate on the die holder, the other end of support be equipped with respectively with the annular fixed plate that the toper through-hole position corresponds, the annular fixed plate below is equipped with the annular fly leaf of same structure, is equipped with removable filter screen between the two, fixed plate upper surface part is protruding, annular fixed plate not with protruding part does not interfere, but the axis of rotation is extending structure.

Furthermore, the rotating mechanism comprises a motor and a speed reducer connected with the motor, the other end of the speed reducer is connected with a worm through a transmission shaft, a worm wheel matched with the worm is also arranged on the lower die holder, a rotating shaft is coaxially arranged on the worm wheel, and the axis of the worm wheel is perpendicular to the upper plane of the lower die holder.

Furthermore, the rotating shaft is divided into a guide rail and a sliding rod which is compressible through a spring in the guide rail, the end part of the sliding rod is fixedly connected with the bracket, and the moving direction of the sliding rod is parallel to the axis of the worm wheel.

Further, after the slide bar is compressed to the maximum, the height from the support to the lower die holder is smaller than the distance from the fixing plate to the lower die holder, and the distance from the slide bar to the raised plane of the fixing plate in a natural state is larger than the distance from the raised plane to the bottom surface of the lower die holder.

Furthermore, the filter screen is a fiber net, the annular fixed plate and the annular movable plate are detachably connected through screws, the fiber net is also fixed through the screws, the small guide pillars and the small guide sleeves are divided into two groups, the small guide pillars and the small guide sleeves are distributed around the small guide pillars and the small guide sleeves at opposite angles, the positions of the small guide pillars and the positions of the small guide sleeves do not interfere with the rotation of the fiber net, and the first buffer block and the second buffer block do not interfere with the rotation of the fiber net.

Compared with the prior art, the automatic recovery device for the casting waste has the following advantages:

(1) According to the automatic recovery device for the casting waste, the existing mould structure is improved, the waste recovery device is additionally arranged on the mould, the automatic separation of the casting and the waste is ensured when the mould is demoulded aiming at the casting with a symmetrical structure, the waste can be automatically separated from the mould, the waste is conveniently recycled, the cost is saved, the labor force is saved, the working efficiency is improved, and the safety of workers is ensured.

(2) The small guide post slides in the small guide sleeve and is always positioned in the small guide sleeve, and the sliding direction of the small guide post is parallel to the sliding direction of the guide post and the guide sleeve. The die fixing plate can not fall off between the small guide pillar and the small guide sleeve, so that the die fixing plate is always connected with the bottom and supported to some extent, the normal operation of die opening is guaranteed, and the die fixing plate can not fall off to cause safety accidents.

(3) A first buffer block and a second buffer block which are matched with each other are further arranged between the female die fixing plate and the fixing plate, cushion blocks are respectively fixed on the contact parts of the two buffer blocks, and the cushion blocks are aluminum blocks. The buffering that has the removal when guaranteeing to close the mould through setting up of buffer block has certain reverse effort during the die sinking, and the effect is better, reduces the damage of mould, and the whole change of buffer block has been avoided in the use of aluminium pig simultaneously, practices thrift the cost, only change receive wearing and tearing aluminium pig can.

(4) The diameter of one end of the conical through hole close to the female die is smaller than that of the other end of the conical through hole, and the conical degree of the conical through hole is 6-15 degrees. Through the restriction to the position shape and the taper of the tapered through hole, the fracture part is relatively smooth on the basis that the waste material can naturally fall off from the bottom, and the waste material on the casting cannot be broken due to insufficient tension caused by small taper.

(5) The part with the conical through hole is detachably connected with the female die fixing plate through a fixing block. This part is easy wearing and tearing piece, establishes to be detachable through the fixed block and is convenient for change the maintenance, practices thrift the cost, and it is convenient to change, reduces because of the time waste that changes the part and cause.

(6) The lower die base is provided with a waste recovery device, the waste recovery device comprises a support, the support is arranged on a rotating shaft and rotates on the lower die base through a rotating mechanism, the other end of the support is provided with an annular fixed plate corresponding to the conical through holes respectively, an annular movable plate with the same structure is arranged below the annular fixed plate, a replaceable filter screen is arranged between the annular fixed plate and the annular movable plate, the upper surface of the fixed plate is partially convex, the annular fixed plate is not interfered with the convex part, and the rotating shaft is of a telescopic structure. The waste recovery device is designed by matching with the structure of the die, the waste is transferred out by driving the support through the rotating mechanism when the waste is separated from the casting, the waste recovery time is obviously saved, the processing efficiency is improved, the normal work of the die cannot be influenced, the matching is better, the design of the filter screen prevents solid impurities in the molten aluminum from entering the die and influencing the quality of the casting, and the practicability is stronger.

(7) The rotating mechanism comprises a motor and a speed reducer connected with the motor, the other end of the speed reducer is connected with a worm through a transmission shaft, a worm wheel matched with the worm is also arranged on the lower die base, a rotating shaft is coaxially arranged on the worm wheel, and the axis of the worm wheel is vertical to the upper plane of the lower die base. The structure is simple, the control is accurate, the sliding is not easy, the waste can be smoothly transferred out, the cost is low, and the practicability is high.

(8) The rotating shaft is divided into a guide rail and a sliding rod which is compressible through a spring in the guide rail, the end part of the sliding rod is fixedly connected with the bracket, and the moving direction of the sliding rod is parallel to the axis of the worm wheel. The arrangement of the rotating shaft ensures that the support can be changed along with the work of the die after extending into the die, the normal work of the die cannot be influenced, and the filter screen on the support can well filter the aluminum liquid.

(9) After the sliding rod is compressed to the maximum extent, the height from the support to the lower die holder is smaller than the distance from the fixing plate to the lower die holder, and the distance from the sliding rod to the plane of the protrusion of the fixing plate in a natural state is larger than the distance from the plane of the protrusion to the bottom surface of the lower die holder. Guaranteed that the axis of rotation can adapt to the closure of mould, can make the waste material make it deviate from the mould completely under the die sinking state simultaneously, guaranteed smooth roll-out waste material, can not cause the influence to the mould.

(10) The filter screen is a fiber net, the annular fixed plate and the annular movable plate are detachably connected through screws and are also fixed through the screws, the small guide columns and the small guide sleeves are divided into two groups and are distributed around the small guide columns and the small guide sleeves at opposite angles, the positions of the small guide columns and the small guide sleeves do not interfere with the rotation of the fiber net, and the first buffer block and the second buffer block do not interfere with the rotation of the fiber net. The use of the fiber net can ensure that the components in the waste material can not be changed during recycling, the content of each part of molten aluminum can be ensured after melting, the quality of a casting can not be influenced, the stability of the structure is ensured on the basis that the rotation of the support is not influenced by the arrangement of the small guide pillar and the small guide sleeve, and the practicability is high.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment 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 sectional view of a mold in which casting scraps are placed by an automatic recycling apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of an automatic recycling device and a mold for casting wastes according to an embodiment of the present invention;

fig. 3 is a partially enlarged view of an automatic recycling apparatus for casting wastes according to an embodiment of the present invention.

Description of reference numerals:

1-an upper die holder; 2-upper cushion plate; 3-a male die fixing plate; 4-a male die; 5-a female die; 6-fixing a female die plate; 7-guide pillar; 8-lower backing plate; 9-a lower die holder; 10-a runner; 11-a main flow channel; 12-a small guide post; 13-a second buffer block; 14-small guide concave die sleeve; 15-a first buffer block; 16-a tapered through hole; 17-a guide sleeve; 18-a rotating shaft; 19-a scaffold; 20-a rotating mechanism; 21-an annular projection; 22-a fixing plate; 23-a groove; 24-annular fixed plate; 25-annular movable plate; 26-screws; 1801-guide rail; 1802-a slide bar; 2001-electric motor; 2002-a reducer; 2003-a drive shaft; 2004-worm; 2005-worm wheel.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1, the die comprises an upper die holder 1, an upper padding plate 2, a punch plate 3, a die holder 4, a fixing plate 22, a lower padding plate 8 and a lower die holder 9 which are sequentially arranged from top to bottom, guide pillars 7 and guide sleeves 17 which are matched with each other are uniformly distributed around the space between the upper die holder 1 and the lower die holder 9, the punch plate 3 is provided with the punch 4, the die holder 4 is provided with a die 5, symmetrical conical through holes 16 are arranged at the bottom of the die holder 4 corresponding to the die 5, the upper surface of the fixing plate 22 is provided with grooves 23 corresponding to the conical through holes 16, two grooves 23 are connected through an arc-shaped groove to form a branch flow passage 10, a main flow passage 11 communicated with the arc-shaped groove is arranged at the center of the lower die holder 9, the lower padding plate 8 and the fixing plate 22, and the die holder 4 and the fixing plate 22 are connected through a small guide pillar 12 and a small guide sleeve 14 in a sliding fit manner. Through the improvement to current mould structure, to the foundry goods that has symmetrical structure, foundry goods and waste material autosegregation when having guaranteed the drawing of patterns, and the separation plane is more smooth, and the waste material can be deviate from the mould automatically, has saved the labour, has improved work efficiency, guarantees staff's safety.

The small guide post 12 slides in the small guide sleeve 14 and is always positioned in the small guide sleeve 14, and the sliding direction of the small guide post 12 is parallel to the sliding direction of the guide post 7 and the guide sleeve 17. The small guide pillar 12 and the small guide sleeve 14 cannot fall off to ensure that the female die fixing plate 4 is always connected with the bottom and supported to some extent, so that the normal operation of die opening is ensured, and the female die fixing plate 4 cannot fall off to cause safety accidents.

A first buffer block 13 and a second buffer block 15 which are matched with each other are further arranged between the female die fixing plate 4 and the fixing plate 22, cushion blocks are respectively fixed on the contact parts of the two buffer blocks, and the cushion blocks are aluminum blocks. The buffering that has the removal when guaranteeing to close the mould through setting up of buffer block has certain reverse effort during the die sinking, and the effect is better, reduces the damage of mould, and the whole change of buffer block has been avoided in the use of aluminium pig simultaneously, practices thrift the cost, only change receive wearing and tearing aluminium pig can.

Wherein, the diameter of one end of the conical through hole 16 close to the female die 5 is smaller than that of the other end, and the taper of the conical through hole is between 6 and 15 degrees. Through the restriction on the position shape and the taper of the tapered through hole 16, the fracture part is relatively flat on the basis that the waste can naturally fall off from the bottom, and the waste on the casting cannot be broken due to insufficient tension caused by small taper.

The part with the conical through hole 16 is detachably connected with the female die fixing plate 4 through a fixing block. This part is easy wearing and tearing piece, establishes to the maintenance of being convenient for change of detachable through the fixed block, practices thrift the cost, and it is convenient to change, reduces because of the time waste who changes the part and cause.

Wherein, be equipped with waste recovery device on the die holder 9, waste recovery device includes support 19, support 19 is arranged in on the axis of rotation 18, be in through slewing mechanism 20 rotate on the die holder 9, the other end of support 19 be equipped with respectively with the annular fixed plate 24 that toper through-hole 16 positions correspond, annular fixed plate 24 below is equipped with the annular fly leaf 25 of same structure, is equipped with removable filter screen between the two, fixed plate 22 upper surface part is protruding 21, annular fixed plate 24 not with protruding 21 part is noninterfere, axis of rotation 18 is extending structure. The waste recovery device is designed by matching with the structure of the die, the waste is transferred out by driving the support 19 through the rotating mechanism 20 when the waste is separated from the casting, the waste recovery time is obviously saved, the processing efficiency is improved, the normal work of the die cannot be influenced, the matching is better, the design of the filter screen prevents solid impurities in the molten aluminum from entering the die and influencing the quality of the casting, and the practicability is stronger.

The rotating mechanism 20 comprises a motor 2001 and a speed reducer 2002 connected with the motor 2001, the other end of the speed reducer 2002 is connected with a worm 2004 through a transmission shaft 2003, a worm wheel 2005 matched with the worm 2004 is also arranged on the lower die holder 9, the rotating shaft 18 is coaxially arranged on the worm wheel 2005, and the axis of the worm wheel 2005 is perpendicular to the upper plane of the lower die holder 9. The structure is simple, the control is accurate, the waste material is guaranteed to be smoothly transferred out, the cost is low, and the practicability is high.

The rotating shaft 18 is divided into a guide rail 1801 and a sliding rod 1802 compressible therein by a spring, and the end of the sliding rod 1802 is fixedly connected with the bracket 19 and moves in a direction parallel to the axis of the worm wheel 2005. The arrangement of the rotating shaft 18 ensures that the support 19 can be changed along with the work of the mold after extending into the mold, the normal work of the mold is not influenced, and the filter screen on the support can well filter the aluminum liquid.

After the slide bar 1802 is compressed to the maximum extent, the height from the bracket 19 to the lower die holder 9 is lower than the distance from the fixing plate 22 to the lower die holder 9, and the distance from the slide bar 1802 to the plane of the projection 21 of the fixing plate 22 in the natural state is greater than the distance from the plane of the projection 21 to the bottom surface of the lower die holder 9. The rotating shaft 18 is guaranteed to be suitable for closing of the mold, meanwhile, the waste can be completely separated from the mold in the mold opening state, smooth turning-out of the waste is guaranteed, and the mold is not affected.

The filter screen is a fiber web, the annular fixed plate 24 and the annular movable plate 25 are detachably connected by screws 26, the fiber web is also fixed by the screws 26, the small guide pillars 12 and the small guide sleeves 14 are arranged in two groups and are distributed around the two groups in a manner of facing angles, the positions of the two groups do not interfere with the rotation of the fiber web, and the first buffer block 13 and the second buffer block 15 do not interfere with the rotation of the fiber web. The use of the fiber net can ensure that the components in the waste material can not be changed during the recycling, the content of each part of molten aluminum can be ensured after the melting, the quality of a casting can not be influenced, the arrangement of the positions of the small guide pillar 12 and the small guide sleeve 14 can ensure the stability of the structure on the basis of not influencing the rotation of the support 19, and the practicability is stronger.

The working principle of the invention is as follows: in use, as shown in figure 1, the parts are checked for normality, assembled on a casting machine, the normal operation of the parts is ensured, the fiber web is fixed between the annular fixed plate 24 and the annular movable plate 25, the fiber web is controlled to be arranged under the conical through hole 16 through the motor 2002, after the preparation work is finished, the casting machine is started to work, the mold is closed, in the downward movement process, the bracket 19 moves downward along with the downward force applied, the male die fixing plate 3 is contacted with the female die fixing plate 6 and then continues to move downward, so that the small guide pillar 12 and the small guide sleeve 14 move mutually, the compression is carried out until the die is completely closed, after the die is closed, the web is under the conical through-hole 16, and the annular holding plate 24 is placed on the edge of the projection 21, without interference, injecting the material into the mold through a riser tube, feeding molten aluminum into the branch channels 10 along the main channel 11, filtering the molten aluminum by the fiber net, feeding the molten aluminum into the mold cavity, cooling the molten aluminum after the injection, starting to open the mold, in the process of opening the mould, as the upper mould part rises, the small guide post 12 and the small guide sleeve 14 are slowly restored, and in the process, because the casting is coated on the surface of the male die 4, the waste and the casting rise along with the casting, the waste is separated from the main runner 11, the female die fixing plate 6 is fixed along with the small guide post 12 and the small guide sleeve 14 after rising to the maximum degree, the upper die continues rising, the casting and the waste of the conical through hole 16 part have separation force, the waste is separated from the casting part, the casting is separated and taken out along with the vibration, the waste material is partially separated from the die and placed on the annular fixing plate 24, the worm gear pair is driven to rotate by the motor 2001 and is rotated out of the die, the waste material is manually taken out, a new fiber net is replaced, and the next die casting is started.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an automatic recovery unit is used to casting spare waste material, the equipartition all around between upper die base (1) and lower die holder (9) has guide pillar (7) and guide pin bushing (17) of mutually supporting, is equipped with terrace die (4) on punch plate (3), and die fixing plate (6) are equipped with die (5), die fixing plate (6) bottom corresponds die (5) department and is equipped with toper through-hole (16) of symmetry, and fixed plate (22) upper surface is equipped with recess (23) that correspond with toper through-hole (16), forms subchannel (10) through arc slot connection between two recess (23), passes lower die holder (9), and the center of lower bolster (8) and fixed plate (22) is opened main flow path (11) that have with arc slot intercommunication, connects through little guide pillar (12) and little guide pin bushing (14) sliding fit between die fixing plate (6) and fixed plate (22), its characterized in that: waste recovery device arranges in on die holder (9), waste recovery device includes support (19), axis of rotation (18) is arranged in on support (19), rotate on die holder (9) through slewing mechanism (20), the other end of support (19) is equipped with annular fixed plate (24) that correspond with toper through-hole (16) position respectively, annular fixed plate (24) below is equipped with annular fly leaf (25) of same structure, be equipped with removable filter screen between the two, fixed plate (22) upper surface sets up arch (21), be equipped with recess (23) and subchannel (10) in arch (21) respectively, annular fixed plate (24) do not interfere with arch (21), axis of rotation (18) are extending structure.

2. The automatic recovery device for casting wastes according to claim 1, characterized in that: the rotating mechanism (20) comprises a motor (2001) and a speed reducer (2002) connected with the motor, the other end of the speed reducer (2002) is connected with a worm (2004) through a transmission shaft (2003), a worm wheel (2005) matched with the worm (2004) is also arranged on the lower die holder (9), a rotating shaft (18) is coaxially arranged on the worm wheel (2005), and the axis of the worm wheel (2005) is perpendicular to the upper plane of the lower die holder (9).

3. The automatic recycling device for casting wastes according to claim 2, wherein: the rotating shaft (18) is divided into a guide rail (1801) and a sliding rod (1802) which is compressible in the guide rail through a spring, and the end part of the sliding rod (1802) is fixedly connected with a support (19) and the moving direction of the sliding rod is parallel to the axis of the worm wheel (2005).

4. The automatic recovery device for casting wastes according to claim 3, wherein: the filter screen is the fibre web, can dismantle the connection through screw (26) between annular fixed plate (24) and the annular fly leaf (25), and fix the fibre web through screw (26) equally, little guide pillar (12) and little guide pin bushing (14) are two sets ofly, and diagonal distribution is around, and its position does not interfere with the rotation of fibre web mutually, still be equipped with first buffer block (13) and second buffer block (15) of mutually supporting between die holder plate (6) and fixed plate (22), first buffer block (13) and second buffer block (15) do not interfere with the rotation of fibre web mutually equally.