CN211489519U

CN211489519U - Multi-standard plate mold for sand box casting mold in valve casting process

Info

Publication number: CN211489519U
Application number: CN202020036340.0U
Authority: CN
Inventors: 张辉; 杜利波; 范红杰; 李吉恩
Original assignee: Yuanda Vavle Group Co ltd
Current assignee: Yuanda Vavle Group Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-09-15
Anticipated expiration: 2030-01-08

Abstract

The utility model relates to a multi-standard plate mould for sand box casting mould in the valve casting process, which comprises a pair of plate moulds, wherein each plate mould comprises a plate and a section mould arranged on the plate; the section mould including fixed set up in center half valve body mould on the template, set up in center half valve body mould left side and with template sliding connection's import half flange mould, set up in center half valve body mould right side and with template sliding connection's export half flange mould, set up in center half valve body mould upside and with template sliding connection's last mouthful half flange mould to and 3 core limit of being connected with corresponding half flange mould an organic whole respectively touch. The utility model discloses an utilize the purpose of a pair of template mould production not unidimensional valve foundry goods, not only improved the utilization ratio of template mould, also reduced the volume of stacking of template mould, reduced the occupation of land space.

Description

Multi-standard plate mold for sand box casting mold in valve casting process

Technical Field

The utility model belongs to the valve casting field, concretely relates to many standards board mould are used to sand box casting mould in the valve casting process.

Background

The casting process of the resin sand valve comprises the following steps: firstly, gluing a riser mould and a pouring gate/pouring gate mould on a template mould to form a special mould, then placing a box body with openings at the upper end and the lower end on a template plate of the template mould, placing sand into the box body, removing the template mould, the riser mould and the pouring gate mould after a sand mould is cooled and solidified, thus forming a half sand box with a cavity, placing a sand core in the cavity of the two half sand boxes, then closing the two half sand boxes to form a sand box, namely a mould for casting a valve, wherein a gap between the sand core in the sand box and the sand mould is a valve cavity for casting the valve, and then casting molten iron into the valve cavity through the pouring gate to form a valve casting.

However, in the current production process, the section moulds and the section plates of the section plate moulds are fixedly connected into a whole, each section plate mould can only be used for producing a valve casting of one model, for a standard valve casting, because the production capacity is large, the utilization rate of the section plate moulds is high, and the idle condition basically cannot occur.

In addition, when producing special materials, because of the inconsistent shrinkage rate, the mold repair is often needed again to correct the problem of inconsistent casting size caused by inconsistent shrinkage rate of the material.

Therefore, it is necessary to develop a multi-standard plate mold for sand box casting in the valve casting process to solve the problems of low utilization rate of the non-standard plate mold for casting the valve, multiple types of plate molds and large occupied space.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a many standards board mould are used to sand box casting mould in the valve casting process.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a multi-standard template mould for a sand box casting mould in the valve casting process comprises a pair of template moulds, wherein each template mould comprises a template, a pattern mould arranged on each template and 3 core side moulds arranged on the pattern moulds; the pair of template dies are respectively an upper box type template die and a lower box type template die, the shape of the outer surface of a section die of the upper box type template die is matched with the shape of an upper half valve body of the valve, and a plurality of riser seats are arranged on the section die of the upper box type template die; the shape of the section mould surface of lower box body type plate mould and the shape looks adaptation of half valve body under the valve, its characterized in that, the section mould including fixed set up in central half valve body mould on the template, set up in central half valve body mould left side and with template sliding connection's import half flange mould, set up in central half valve body mould right side and with template sliding connection's export half flange mould, set up in central half valve body mould upside and with template sliding connection's last mouthful half flange mould, 3 the core limit is touched respectively with corresponding half flange mould body coupling.

Furthermore, the upper box type plate die further comprises an ingate arranged on the shaping plate, and 2 outlet ends of the ingate are respectively bonded and fixed with an inlet half flange die and an outlet half flange die of the upper box type plate die.

Furthermore, a semi-rubber cushion block is clamped between the central semi-valve body mould and the corresponding semi-flange mould, and the outer surface of the semi-rubber cushion block is flush with the outer surface of the end, close to the central semi-valve body mould, of the outer surface of the end, close to the corresponding semi-flange mould.

Further, the bottom of template is provided with square carriage, be in on the template the slide opening has all been seted up to left side, right side and the upside of center half valve body mould, the bottom of import half flange mould is provided with the import slider, the bottom of export half flange mould is provided with the export slider, the bottom of first mouth half flange mould is provided with the runner, import slider, export slider, runner slide respectively and set up in corresponding slide opening.

Furthermore, the inlet slide block, the outlet slide block and the upper opening slide block are all cylindrical, and locking nuts are arranged on the bottoms of the inlet slide block, the outlet slide block and the upper opening slide block after corresponding slide holes extend.

Furthermore, the outer sides of the inlet sliding block, the outlet sliding block and the upper opening sliding block are respectively provided with a bottom supporting plate for shielding the corresponding sliding holes, and the bottom supporting plates are arranged on the shaping plate in a sticking mode.

Furthermore, the bottom of the template is provided with a central mounting block, the square supporting frame and the template are enclosed to form a lower cavity, and the central mounting block is arranged in the lower cavity and at a position corresponding to the intersection point of the central lines of the three sliding holes; the inlet slide block is provided with an inlet slide plate after extending out of a corresponding slide hole, the outlet slide block is provided with an outlet slide plate after extending out of a corresponding slide hole, the upper opening slide block is provided with an upper opening slide plate after extending out of a corresponding slide hole, the central mounting block is respectively provided with a first adjusting screw and a second adjusting screw in a rotating way through a bearing, two ends of the first adjusting screw extend out of the central mounting block and are respectively provided with a positive thread and a negative thread, and two ends of the first adjusting screw respectively penetrate through the inlet slide plate and the outlet slide plate and are in threaded connection with the corresponding slide plate; both ends of the first adjusting screw rod are rotatably connected with the corresponding side walls of the square supporting frame, and at least one end of the first adjusting screw rod penetrates through the square supporting frame and then is provided with a first adjusting handle; one end of the second adjusting screw rod is rotatably arranged on the central mounting block, the other end of the second adjusting screw rod penetrates through the upper opening sliding plate and the square supporting frame and then is provided with a second handle, and the second adjusting screw rod is in threaded connection with the upper opening sliding plate.

Furthermore, the outer sides of the inlet sliding block, the outlet sliding block and the upper port sliding block are provided with bottom supporting plates for shielding corresponding sliding holes, and the square supporting frame is provided with through holes for the corresponding bottom supporting plates to pass through.

Furthermore, a plurality of positioning bulges are arranged on the template of the upper box type plate die, and a positioning groove matched with the positioning bulges is arranged on the template of the lower box type plate die.

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

the utility model divides the section mould of the traditional template mould into four parts of a central half valve body mould, an upper opening half flange mould, an inlet half flange mould and an outlet half flange mould, the size of the section die is changed by sliding 3 half flange dies and arranging a half rubber gasket between the half flange dies and the central half valve body die, only the half rubber gaskets with different thicknesses are selected according to different valve sizes, the purpose of producing valve castings with different sizes by utilizing a pair of template dies can be realized, the utilization rate of the template dies is improved, the stacking quantity of the template dies is reduced, the occupied space is reduced, in addition, the material of the template dies is different, the utility model is affected by different expansion with heat and contraction with cold, and the utility model can be provided with a semi-rubber gasket due to the inconsistent shrinkage rate when producing special materials, trimming the template mould to correct the problem of repairing the mould again caused by inconsistent material shrinkage.

Drawings

Fig. 1 is a top view of an embodiment of the present invention;

fig. 2 is a perspective view of an embodiment of the present invention;

fig. 3 is a perspective view of another embodiment of the present invention.

In the figure: 1. an upper box type plate die, 2, a lower box type plate die, 3, a template, 4, a central half valve body die, 5, an inlet half flange die, 6, an outlet half flange die, 7, an upper opening half flange die, 8, a core side die, 9, an inner pouring channel, 10, a half rubber cushion block, 11, a sliding hole, 12, an inlet sliding block, 13, an outlet sliding block, 14, an upper opening sliding block, 15, a locking nut, 16, a central mounting block, 17, an inlet sliding plate, 18, an outlet sliding plate, 19, an upper opening sliding plate, 20, a first adjusting screw rod, 21, a second adjusting screw rod, 22, a positive thread, 23, a reverse thread, 24 and a first adjusting handle; 25. the device comprises a second handle, 26, a bottom supporting plate, 28, a positioning protrusion, 29, a positioning groove, 30, a square supporting frame, 31, a riser seat, 32 and an inner runner seat.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1-2 show an embodiment of a multi-standard plate mold for a sand box casting mold in a valve casting process, comprising a pair of plate molds, wherein each plate mold comprises a plate 3, a pattern mold arranged on the plate 3, and 3 core side molds 8 arranged on the pattern mold; the pair of template molds are respectively an upper box type template mold 1 and a lower box type template mold 2, the shape of the outer surface of a section mold of the upper box type template mold 1 is matched with the shape of an upper half valve body of the valve, and a plurality of riser seats 31 are arranged on the section mold of the upper box type template mold 1; the shape of the section mould surface of lower box body type plate mould 2 and the shape looks adaptation of half valve body under the valve, its characterized in that, the section mould including fixed set up in central half valve body mould 4 on the template 3, set up in central half valve body mould 4 left side and with 3 sliding connection's of template import half flange mould 5, set up in central half valve body mould 4 right side and with 3 sliding connection's of template export half flange mould 6, set up in central half valve body mould 4 upside and with 3 sliding connection's of template last mouthful half flange mould 7, 3 the core limit touches 8 respectively with corresponding half flange mould body coupling.

Furthermore, the shapes and the sizes of the adjacent end surfaces of the central half valve body mould 4 and the corresponding half flange mould are consistent.

Further, a semi-rubber cushion block 10 is clamped between the central half-valve body mold 4 and the corresponding half-flange mold, and the inner end face of the semi-rubber cushion block 10 is matched with the adjacent face of the central half-valve body mold 4; the outer end face of the half rubber cushion block 10 is matched with the adjacent face of the corresponding half flange die. The outer surface of the half rubber pad 10 is flush with the outer surface of the adjacent end of the central half valve body mould 4 and the outer surface of the adjacent end of the corresponding half flange mould.

Further, the bottom of template 3 is provided with square carriage 30, slide opening 11 has all been seted up to left side, right side and the upside of center half valve body mould 4 on the template 3, the bottom of import half flange mould 5 is provided with import slider 12, the bottom of export half flange mould 6 is provided with export slider 13, the bottom of suitable for reading half flange mould 7 is provided with suitable for reading slider 14, import slider 12, export slider 13, suitable for reading slider 14 slide respectively and set up in corresponding slide opening 11.

As an embodiment of the utility model relates to a sand box casting mould is with many standards board mould among valve casting process, import slider 12, export slider 13, suitable for reading slider 14 are cylindrical, import slider 12, export slider 13, suitable for reading slider 14's bottom is provided with lock nut 15 after extending corresponding slide opening 11.

Further, bottom supporting plates 26 for shielding the corresponding slide holes 11 are arranged on the outer sides of the inlet slide block 12, the outlet slide block 13 and the upper opening slide block 14, and the bottom supporting plates 26 are adhered to the shaping plate 3. When the slide hole 11 is long and the half flange mold is displaced towards the central half valve body mold, a part of the slide hole 11 outside the inlet slide block 12 and the outlet slide block 13 can be blocked by the corresponding core side mold 8, and the part of the slide hole 11 can have a sand leakage phenomenon in the sand releasing process, so that the part of the slide hole 11 needs to be blocked by the bottom support plate 26.

As another embodiment of the multi-standard plate mold for sand box casting mold in the valve casting process of the present invention, as shown in fig. 3, the bottom of the mold plate 3 is provided with a central mounting block 16, the square support frame 30 and the mold plate 3 enclose to form a lower cavity, and the central mounting block 16 is arranged in the lower cavity at a position corresponding to the intersection point of the central lines of the three sliding holes 11; the inlet slide block 12 extends out of the corresponding slide hole 11 and is provided with an inlet slide plate 17, the outlet slide block 13 extends out of the corresponding slide hole 11 and is provided with an outlet slide plate 18, the upper opening slide block 14 extends out of the corresponding slide hole 11 and is provided with an upper opening slide plate 19, the central mounting block 16 is respectively provided with a first adjusting screw 20 and a second adjusting screw 21 in a rotating way through a bearing, two ends of the first adjusting screw 20 extend out of the central mounting block 16 and are respectively provided with a positive thread 22 and a negative thread 23, and two ends of the first adjusting screw 20 respectively penetrate through the inlet slide plate 17 and the outlet slide plate 18 and are in threaded connection with the corresponding slide plates; both ends of the first adjusting screw 20 are rotatably connected with the corresponding side walls of the square supporting frame 30, and at least one end of the first adjusting screw 20 penetrates through the square supporting frame 30 and then is provided with a first adjusting handle 24; one end of the second adjusting screw 21 is rotatably arranged on the central mounting block 16, the other end of the second adjusting screw 21 penetrates through the upper opening sliding plate 19 and the square supporting frame 30 and then is provided with a second handle 25, and the second adjusting screw 21 is in threaded connection with the upper opening sliding plate 19.

Further, the pitch of the positive thread 22 is the same as that of the negative thread 23.

Further, bottom supporting plates 26 for shielding the corresponding sliding holes 11 are arranged on the outer sides of the inlet sliding block 12, the outlet sliding block 13 and the upper opening sliding block 14, and through holes for the corresponding bottom supporting plates 26 to pass through are formed in the square supporting frame 30.

As an embodiment of the utility model relates to a sand box casting mould is with many standard plate mould among valve casting process, be provided with a plurality of location archs 28 on the template 3 of upper box body type plate mould 1, be provided with on the template 3 of lower box body type plate mould 2 with the positioning groove 29 of the protruding 28 looks adaptations of location. The positioning protrusions 28 and the positioning grooves 29 are arranged to facilitate positioning of a cope flask and a drag flask which are manufactured after sand is put in a mold closing process.

As an embodiment of the utility model relates to a sand box casting mould is with many standard plate mould among valve casting process, go up box type plate mould 1 and still including setting up the ingate 9 on template 3, 2 exit ends of ingate 9 bond fixedly with the import semi-flange mould 5 and the export semi-flange mould 6 of last box type plate mould 2 respectively. Furthermore, the inlet half flange die 5 and the outlet half flange die 6 are both provided with an ingate seat 32, and 2 outlet ends of the ingate are respectively bonded on the corresponding ingate seats 32. The utility model discloses ingate 9 is not the as cast must part of every valve foundry goods, it is different according to the size of treating the casting valve, can select different main runners to set up the position, also can set up ingate 9 according to the selection, because in the actual production, valve of every casting, ingate 9 all need melt back recasting, belong to part that can not reuse, consequently, only need according to the not unidimensional ingate 9 of different valve size production can, it is unnecessary to cut apart into a plurality of pieces like the section mould, splice.

The utility model discloses a use method does:

when the size of the valve to be cast does not need a semi-rubber cushion block, only the first adjusting screw 20 needs to be rotated, under the action of the positive and negative threads 23 of the first adjusting screw 20, the inlet sliding plate 17 and the outlet sliding plate 18 simultaneously slide towards the central mounting block 16, so that the inlet semi-flange mold 7 and the outlet semi-flange mold 6 are driven to slide towards the central semi-valve body mold 4 until being tightly abutted against each other, then the second adjusting screw 21 is rotated, and the upper opening sliding plate 19 slides towards the central mounting block 16, so that the upper opening semi-flange mold 7 is driven to slide towards the central semi-valve body mold 4 until being tightly abutted against each other.

When the size of the valve to be cast needs to be provided with the semi-rubber cushion block, only a rubber gasket with proper thickness is needed to be selected according to the size of the valve to be cast, the first adjusting screw 20 and the second adjusting screw 21 are rotated firstly to enable a gap to be formed between the central semi-valve body mould and the corresponding flange mould, the gap needs to be larger than the thickness of the corresponding rubber gasket, then the rubber gasket is placed between the central semi-valve body mould 4 and the corresponding flange mould, then the first adjusting screw 20 and the second adjusting screw 21 are rotated reversely to enable the central semi-valve body mould 4 and the corresponding flange mould to clamp the rubber gasket tightly, then a cutter is adopted to cut off the part of the edge of the rubber gasket protruding out of the central semi-valve body mould 4 and the corresponding flange mould, so that the outer surface of the rubber gasket is flush with the adjacent end of the central semi-valve body, and the subsequent casting operations of adhering ingate, pouring channel and riser mould, placing the box body, placing sand and other sand boxes can be carried out.

The above-described embodiments are merely preferred examples of the present invention and are not exhaustive of the possible implementations of the present invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.

Claims

1. A multi-standard plate mould for a sand box casting mould in the valve casting process comprises a pair of plate moulds, wherein each plate mould comprises a plate (3), a section mould arranged on the plate (3), and 3 core side moulds (8) arranged on the section mould; the pair of template dies are respectively an upper box type template die (1) and a lower box type template die (2), the shape of the outer surface of a section die of the upper box type template die (1) is matched with the shape of an upper half valve body of the valve, and a plurality of riser seats (31) are arranged on the section die of the upper box type template die (1); the shape of the section mould surface of lower box body type plate mould (2) and the shape looks adaptation of half valve body under the valve, its characterized in that, the section mould including fixed set up in center half valve body mould (4) on template (3), set up in center half valve body mould (4) left side and with template (3) sliding connection's import half flange mould (5), set up in center half valve body mould (4) right side and with template (3) sliding connection's export half flange mould (6), set up in center half valve body mould (4) upside and with template (3) sliding connection's last mouthful half flange mould (7), 3 core limit (8) respectively with corresponding half flange mould body coupling.

2. The multi-standard plate mold for sand box casting mold in valve casting process according to claim 1, wherein the upper box type plate mold (1) further comprises an ingate (9) provided on the template (3), and 2 outlet ends of the ingate (9) are respectively bonded and fixed with the inlet half flange mold (5) and the outlet half flange mold (6) of the upper box type plate mold (1).

3. The multi-standard plate mold for sand box casting mold in valve casting process according to claim 1, characterized in that a half rubber pad (10) is sandwiched between the central half valve body mold (4) and the corresponding half flange mold, and the outer surface of the half rubber pad (10) is flush with the outer surface of the adjacent end of the central half valve body mold (4) and the outer surface of the adjacent end of the corresponding half flange mold.

4. The multi-standard plate mold for the sand box casting mold in the valve casting process according to claim 1, wherein a square support frame (30) is arranged at the bottom of the mold plate (3), slide holes (11) are formed in the mold plate (3) on the left side, the right side and the upper side of the central half valve body mold (4), an inlet slide block (12) is arranged at the bottom of the inlet half flange mold (5), an outlet slide block (13) is arranged at the bottom of the outlet half flange mold (6), an upper opening slide block (14) is arranged at the bottom of the upper opening half flange mold (7), and the inlet slide block (12), the outlet slide block (13) and the upper opening slide block (14) are respectively arranged in the corresponding slide holes (11) in a sliding manner.

5. The multi-standard plate mold for the sand box casting mold in the valve casting process according to claim 4, wherein the inlet slide block (12), the outlet slide block (13) and the upper opening slide block (14) are all cylindrical, and the bottom of the inlet slide block (12), the bottom of the outlet slide block (13) and the bottom of the upper opening slide block (14) extend out of the corresponding slide holes (11) and are provided with locking nuts (15).

6. The multi-standard plate mold for sand box casting mold in the valve casting process according to claim 5, wherein the outside of the inlet slide block (12), the outlet slide block (13) and the upper slide block (14) are provided with bottom support plates (26) for shielding the corresponding slide holes (11), and the bottom support plates (26) are adhered to the template (3).

7. The multi-standard plate mold for sand box casting mold in the valve casting process according to claim 4, characterized in that the bottom of the template (3) is provided with a central mounting block (16), the square support frame (30) and the template (3) enclose to form a lower cavity, and the central mounting block (16) is arranged in the lower cavity at a position corresponding to the intersection point of the central lines of the three slide holes (11); the inlet sliding block (12) extends out of the corresponding sliding hole (11) and then is provided with an inlet sliding plate (17), the outlet sliding block (13) extends out of the corresponding sliding hole (11) and then is provided with an outlet sliding plate (18), the upper opening sliding block (14) extends out of the corresponding sliding hole (11) and then is provided with an upper opening sliding plate (19), the central mounting block (16) is respectively provided with a first adjusting screw rod (20) and a second adjusting screw rod (21) in a rotating mode through a bearing, two ends of the first adjusting screw rod (20) extend out of the central mounting block (16) and are respectively provided with a positive thread (22) and a negative thread (23), and two ends of the first adjusting screw rod (20) respectively penetrate through the inlet sliding plate (17) and the outlet sliding plate (18) and are in threaded connection with the corresponding sliding plates; both ends of the first adjusting screw rod (20) are rotatably connected with the corresponding side walls of the square supporting frame (30), and at least one end of the first adjusting screw rod (20) penetrates through the square supporting frame (30) and then is provided with a first adjusting handle (24); one end of the second adjusting screw rod (21) is rotatably arranged on the central mounting block (16), the other end of the second adjusting screw rod (21) penetrates through the upper opening sliding plate (19) and the square supporting frame (30) and then is provided with a second handle (25), and the second adjusting screw rod (21) is in threaded connection with the upper opening sliding plate (19).

8. The multi-standard plate mold for sand box casting mold in the valve casting process according to claim 7, wherein the outside of the inlet slide block (12), the outlet slide block (13) and the upper slide block (14) are provided with bottom support plates (26) for shielding the corresponding slide holes (11), and the square support frame (30) is provided with through holes for the corresponding bottom support plates (26) to pass through.

9. The multi-standard plate mold for sand box casting mold in the valve casting process according to claim 1, wherein a plurality of positioning protrusions (28) are arranged on the template (3) of the upper box type plate mold (1), and positioning grooves (29) matched with the positioning protrusions (28) are arranged on the template (3) of the lower box type plate mold (2).