CN221087171U - Cold core box structure with differential shell for preventing movable block from unexpected falling off - Google Patents
Cold core box structure with differential shell for preventing movable block from unexpected falling off Download PDFInfo
- Publication number
- CN221087171U CN221087171U CN202322998096.2U CN202322998096U CN221087171U CN 221087171 U CN221087171 U CN 221087171U CN 202322998096 U CN202322998096 U CN 202322998096U CN 221087171 U CN221087171 U CN 221087171U
- Authority
- CN
- China
- Prior art keywords
- block
- movable block
- unexpected
- fixed
- unexpected falling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002265 prevention Effects 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 230000009471 action Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Abstract
The utility model relates to the technical field of sand core manufacturing, in particular to a cold core box structure for preventing a loose piece from unexpected falling off due to a poor shell, which comprises a sand core, an air cylinder drawing block, a loose piece and an unexpected falling-off prevention structure, wherein concave cavities are formed in four sides of the sand core; the movable block is arranged at the top of the cylinder pumping block, the unexpected falling-off prevention structure is embedded on the movable block and is abutted to the inner wall of the concave cavity, and the unexpected falling-off prevention structure is used for hooking the movable block to prevent the movable block from unexpected falling off; the structure for preventing unexpected falling comprises a fixed block, and an insert is fixed at the top of the fixed block. The utility model designs an unexpected falling-off prevention structure at the core head position of the movable block, and the fixed block is fixed at the sand core head position of the movable block, wherein the fixed part is designed into a negative slope and is used for hooking the movable block, so that the gravity effect of the movable block is overcome, and the movable block cannot fall off from the sand core under the action of no external force.
Description
Technical Field
The utility model relates to the technical field of sand core manufacturing, in particular to a cold core box structure with a differential shell for preventing a loose piece from unexpected falling.
Background
In the casting production, a sand core is generally used, and has the following functions: the formation of the cavities and holes of the castings, for some cavities of relatively complex shape, must be formed with a sand core, an extremely important function of the sand core; forming the appearance of a casting, and for the casting with a complex external shape, such as a boss and a bump which are more in interference with drawing, are not easy to detach and have a complex curved surface shape, when the external mold is difficult to manufacture, a sand core is commonly used for forming the external shape of the casting; the strength of the local sand mould is enhanced, when large and medium castings are poured, the sprue is generally high, the scouring force of metal is high, the scouring time of the sand mould in the same place is long, and the sand mould in the places is often scoured due to insufficient strength. Therefore, in order to ensure the quality of castings and prevent the occurrence of defects such as flushing, high-strength sand core blocks are often embedded in places with strong flushing forces.
As shown in fig. 1, a sand core with a new product of a poor shell is developed, an inner cavity of the poor shell is formed in a casting process, a pattern drawing analysis is carried out on the sand mold (the right side is in the pattern drawing direction), the sand core has the phenomenon that the cavity on four sides is reversely drawn, a core box cannot be produced in a normal open mode, and a cylinder drawing block or a movable block is needed to be used in the core box to produce the sand core; if the pattern drawing direction is changed, as shown in fig. 2, there are many positions where the pattern cannot be drawn, especially the pattern drawing of the shape part in the circle in fig. 2 cannot be performed normally, and the pattern drawing in this direction is not a good solution to integrate the shape of the entire sand core. For the sand core, the air cylinder block and the movable block are adopted, so that the sand core can be smoothly opened, the sand core and the movable block can be unexpectedly separated from the sand core under the action of gravity in the demolding process of the sand core and the movable block in the core box, and the unexpected separation of the movable block can have the adverse effects of crushing the formed sand core, crushing the core box part, crushing operators, crushing the movable block and the like, so that the prevention of the unexpected separation of the movable block is very important.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a cold core box structure with a poor shell for preventing a loose piece from unexpected falling, which solves the problems that the unexpected falling of the loose piece can possibly crush the formed sand core, crush the core box part, crush operators, crush the loose piece and other adverse consequences when the loose piece falls off from the sand core under the action of gravity in the process of demolding the sand core and the loose piece from the core box.
In order to solve the technical problems, the utility model provides the following technical scheme: the cold core box structure for preventing unexpected falling of the loose piece of the differential shell comprises a sand core, a cylinder pumping block, the loose piece and an unexpected falling prevention structure, wherein concave cavities are formed in four side surfaces of the sand core;
The movable block is arranged at the top of the cylinder pumping block, the unexpected falling-off prevention structure is embedded on the movable block and is abutted to the inner wall of the concave cavity, and the unexpected falling-off prevention structure is used for hooking the movable block to prevent the movable block from unexpected falling off.
Further, the unexpected structure that drops of preventing includes the fixed block, the top of fixed block is fixed with the insert, the inboard of insert is equipped with fixed part, the outside of insert is equipped with the tilting portion.
Further, a positioning groove is formed in the inner wall of the concave cavity, and the insert is inserted into the positioning groove.
Further, the section of the insert is triangular, the included angle between the fixed part and the fixed block is 50-80 degrees, and the included angle between the inclined part and the fixed block is 125-145 degrees.
Further, the cylinder drawing block comprises a drawing block, a groove surface I is arranged on the inner side of the drawing block, and a positioning rod is connected to the groove surface I.
Further, one side of the drawing block, which is far away from the first groove surface, is fixed on the driving cylinder.
Further, a groove surface II is arranged on the inner side of the movable block, and the matching of the groove surface I, the groove surface II and the positioning rod is used for forming the concave cavity.
Further, the top of the movable block is provided with a mounting groove, and the insert is fixed in the mounting groove.
By means of the technical scheme, the cold core box structure with the differential shell for preventing unexpected falling of the loose piece provided by the utility model has the following beneficial effects:
the cold core box structure for preventing the loose piece from unexpected falling off is characterized in that the unexpected falling off preventing structure is designed at the core head position of the loose piece, the fixed block is fixed at the sand core head position of the loose piece, wherein the fixed part is designed into a negative slope and is used for hooking the loose piece, the gravity effect of the loose piece is overcome, and the loose piece cannot fall off from the sand core under the action of no external force. After the sand core is taken down, the movable block is gently knocked along the die opening direction of the movable block, and the movable block can be taken down from the sand core only by slightly damaging the shape of the core head part. The unexpected falling-off prevention structure is small in size, and the sand core is not influenced in use at the position of the core head.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate and together with the description serve to explain a part of the utility model:
FIG. 1 is a schematic diagram of a sand core structure of the present utility model;
FIG. 2 is a schematic diagram of a sand core structure according to the present utility model;
FIG. 3 is a top view of the structure of the present utility model;
FIG. 4 is a bottom view of the structure of the present utility model;
FIG. 5 is a schematic view of a cylinder block, a loose piece and an unexpected drop prevention device according to the present utility model;
FIG. 6 is a schematic view of a cylinder block according to the present utility model;
FIG. 7 is a schematic view of a loose piece and an unexpected drop-off prevention structure of the present utility model;
FIG. 8 is a schematic view of an unexpected drop-off prevention structure according to the present utility model.
In the figure: 100. a sand core; 200. a cavity; 300. a cylinder block is drawn; 301. drawing blocks; 302. groove surface I; 303. a positioning rod; 400. a movable block; 401. groove surface II; 500. an unexpected drop-off prevention structure; 501. a fixed block; 502. an insert; 503. a fixing part; 504. an inclined portion.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
At present, in the process of demolding the sand core 100 and the movable block 400 from the core box, the movable block 400 can be unexpectedly separated from the sand core 100 under the action of gravity, and the unexpected separation of the movable block 400 can have adverse consequences of crushing the formed sand core 100, crushing the core box part, crushing operators, crushing the movable block 400 and the like.
In order to solve the above problems, referring to fig. 3 to 5, the present application provides a cold box structure of a differential shell for preventing unexpected falling of a loose piece, comprising a sand core 100, a cylinder block 300, a loose piece 400 and an unexpected falling preventing structure 500, wherein four sides of the sand core 100 are provided with concave cavities 200;
The movable block 400 is mounted on the top of the cylinder pumping block 300, the unexpected falling-off preventing structure 500 is embedded on the movable block 400, the unexpected falling-off preventing structure 500 is abutted against the inner wall of the concave cavity 200, and the unexpected falling-off preventing structure 500 is used for hooking the movable block 400 to prevent the unexpected falling-off of the movable block 400.
Referring to fig. 8, the unexpected drop-off preventing structure 500 includes a fixing block 501, an insert 502 is fixed on top of the fixing block 501, a fixing portion 503 is disposed on an inner side of the insert 502, and an inclined portion 504 is disposed on an outer side of the insert 502. An unexpected drop-off prevention structure 500 is designed at the core position of the loose piece 400, and a fixing block 501 is fixed at the core position of the loose piece 400, wherein a fixing part 503 is designed to have a negative slope for hooking the loose piece 400, so that the gravity of the loose piece 400 is overcome, and the loose piece 400 cannot drop from the sand core 100 under the action of no external force. After the sand core 100 is taken down, the movable block 400 is gently knocked along the die-opening direction of the movable block 400, and the movable block 400 can be taken down from the sand core 100 only by slightly damaging the shape of the core head part. The anti-unintended drop structure 500 is small in size and has no impact on the use of the sand core 100 in the core-head position.
The inner wall of the cavity 200 is provided with a positioning groove (not shown in the figure), and the insert 502 is inserted into the positioning groove. Insert 502 inserts in the constant head tank, has strengthened the fixed stability of loose piece 400, and loose piece 400 can not drop from the psammitolite 100 under no exotic effect, avoids unexpected the coming off of loose piece 400 can smash into the adverse consequence such as the psammitolite 100 of shaping, smash into core box part, smash into operating personnel, smash into loose piece 400 itself.
Referring to fig. 8, the cross section of the insert 502 is triangular, the included angle between the fixing portion 503 and the fixing block 501 is 50-80 °, and the included angle between the inclined portion 504 and the fixing block 501 is 125-145 °. Further enhancing the stability of the securing of the loose piece 400.
Referring to fig. 6, a cylinder block 300 includes a block 301, a groove surface 302 is disposed on an inner side of the block 301, and a positioning rod 303 is connected to the groove surface 302. The side of the suction block 301 remote from the recess face one 302 is fixed to the driving cylinder. Referring to fig. 7, a second groove surface 401 is provided on the inner side of the movable block 400, and the first groove surface 302, the second groove surface 401 and the positioning rod 303 are matched for forming the cavity 200. Facilitating the formation of the cavity 200.
Referring to fig. 7, the top of the loose piece 400 is provided with a mounting groove, and the insert 502 is fixed in the mounting groove. Facilitating the installation and fixation of the loose piece 400.
So far, the present embodiment has been described in detail with reference to the accompanying drawings, and the present utility model should be clearly recognized by those skilled in the art in light of the above description. In the utility model, the cold core box is not the key point of the improvement, the cold core box is used for processing and manufacturing the sand core 100, the driving cylinder is fixed on the cold core box, the drawing block 301 is fixed at the output end of the driving cylinder, the movable block 400 is arranged at the top of the drawing block 301, and the drawing block 300 and the movable block 400 are used for forming the concave cavities 200 on four sides of the sand core 100 through the cylinder.
The key points of the improvement are that: an unexpected drop-off prevention structure 500 is designed at the core position of the loose piece 400, and a fixing block 501 is fixed at the core position of the loose piece 400, wherein a fixing part 503 is designed to have a negative slope for hooking the loose piece 400, so that the gravity of the loose piece 400 is overcome, and the loose piece 400 cannot drop from the sand core 100 under the action of no external force. After the sand core 100 is taken down, the movable block 400 is gently knocked along the die-opening direction of the movable block 400, and the movable block 400 can be taken down from the sand core 100 only by slightly damaging the shape of the core head part. The anti-unintended drop structure 500 is small in size and has no impact on the use of the sand core 100 in the core-head position.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cold core box structure that bad shell prevents unexpected whereabouts of loose piece, includes psammitolite (100), cylinder and takes out piece (300), loose piece (400) and prevents unexpected whereabouts structure (500), its characterized in that: four side surfaces of the sand core (100) are provided with concave cavities (200);
The movable block (400) is arranged at the top of the cylinder pumping block (300), the unexpected falling-off prevention structure (500) is embedded on the movable block (400), the unexpected falling-off prevention structure (500) is abutted to the inner wall of the concave cavity (200), and the unexpected falling-off prevention structure (500) is used for hooking the movable block (400) to prevent the unexpected falling-off of the movable block (400).
2. The cold box structure of claim 1, wherein the differential shell prevents unintended removal of the loose pieces, wherein: the anti-unexpected falling structure (500) comprises a fixed block (501), an insert (502) is fixed at the top of the fixed block (501), a fixed part (503) is arranged on the inner side of the insert (502), and an inclined part (504) is arranged on the outer side of the insert (502).
3. The cold box structure of claim 2, wherein the differential shell prevents unintended removal of the loose pieces, wherein: the inner wall of the concave cavity (200) is provided with a positioning groove, and the insert (502) is inserted into the positioning groove.
4. The cold box structure of claim 2, wherein the differential shell prevents unintended removal of the loose pieces, wherein: the section of the insert (502) is triangular, the included angle between the fixing part (503) and the fixing block (501) is 50-80 degrees, and the included angle between the inclined part (504) and the fixing block (501) is 125-145 degrees.
5. The cold box structure of claim 1, wherein the differential shell prevents unintended removal of the loose pieces, wherein: the cylinder pumping block (300) comprises a pumping block (301), a groove surface I (302) is arranged on the inner side of the pumping block (301), and a positioning rod (303) is connected to the groove surface I (302).
6. The cold box structure of claim 5, wherein the differential shell prevents unintended removal of the loose piece, wherein: one side of the drawing block (301) far away from the groove surface I (302) is fixed on the driving cylinder.
7. The cold box structure of claim 5, wherein the differential shell prevents unintended removal of the loose piece, wherein: the inner side of the movable block (400) is provided with a groove surface II (401), and the matching of the groove surface I (302), the groove surface II (401) and the positioning rod (303) is used for forming the concave cavity (200).
8. The cold box structure of claim 2, wherein the differential shell prevents unintended removal of the loose pieces, wherein: the top of the movable block (400) is provided with a mounting groove, and the insert (502) is fixed in the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322998096.2U CN221087171U (en) | 2023-11-07 | 2023-11-07 | Cold core box structure with differential shell for preventing movable block from unexpected falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322998096.2U CN221087171U (en) | 2023-11-07 | 2023-11-07 | Cold core box structure with differential shell for preventing movable block from unexpected falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221087171U true CN221087171U (en) | 2024-06-07 |
Family
ID=91305785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322998096.2U Active CN221087171U (en) | 2023-11-07 | 2023-11-07 | Cold core box structure with differential shell for preventing movable block from unexpected falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221087171U (en) |
-
2023
- 2023-11-07 CN CN202322998096.2U patent/CN221087171U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2573306C (en) | Railway car coupler knuckle having improved bearing surface | |
| CN221087171U (en) | Cold core box structure with differential shell for preventing movable block from unexpected falling off | |
| CN204545323U (en) | The dispellable mould casting bubbles model of solid casting | |
| CN110369678A (en) | A kind of wind power principal axis metal mold and casting system | |
| CN211331214U (en) | High-forming-quality arc thin-wall magnesium alloy casting | |
| CN213968871U (en) | Mould is used in production of deck lock wax matrix | |
| CN205393499U (en) | Alloying metal frame die casting does not have mould structure of thimble seal | |
| US7314586B2 (en) | Method for manufacturing a wax mold for a golf club head | |
| CN208083364U (en) | A kind of watchband grain mold | |
| CN208004765U (en) | A kind of two-flange shaft flow fan casing compression mod | |
| CN212191121U (en) | Reusable titanium alloy casting mold structure | |
| CN111633181A (en) | Investment casting semi-split gate stick | |
| CN112808968B (en) | Combined type mold core and die-casting mold | |
| CN212042619U (en) | Auxiliary die opening and piece taking device | |
| CN206343594U (en) | A kind of compound core of circular cooler trolley casting | |
| CN214814576U (en) | Mold for casting with buckle mold and sand mold for molding casting | |
| CN211915435U (en) | Die for producing arc-shaped magnesium alloy castings | |
| CN213163023U (en) | Aluminum casting low-pressure die | |
| CN215544723U (en) | Sand falling prevention pouring cup | |
| CN217474788U (en) | Casting mould of big planet carrier | |
| CN202894277U (en) | Moving die inverse pulling structure of die-casting die | |
| CN218873697U (en) | Casting mould structure capable of preventing casting from being scratched in demolding | |
| CN213452826U (en) | Novel die casting | |
| CN211489525U (en) | Die for producing bending products of arc-shaped parts | |
| CN221087236U (en) | Casting mold of bearing chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |