CN113182495A - Double-inverted-buckle structure of sand core mold - Google Patents
Double-inverted-buckle structure of sand core mold Download PDFInfo
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- CN113182495A CN113182495A CN202110406369.2A CN202110406369A CN113182495A CN 113182495 A CN113182495 A CN 113182495A CN 202110406369 A CN202110406369 A CN 202110406369A CN 113182495 A CN113182495 A CN 113182495A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/06—Core boxes
- B22C7/067—Ejector elements
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- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to the technical field of mold manufacturing, in particular to a double-back-off structure of a sand core mold. The sand core mould comprises a sand core mould body, wherein a sand core side groove is formed in the upper end of the sand core mould body; a first R angle and a second R angle are respectively formed on two sides of the sand core side groove; the two ends of the sand core mould body are respectively provided with a first sand shooting end and a second sand shooting end which are used for shooting sand and feeding; one side of the sand core side groove is connected with an inclined pin core pulling mechanism; the other side of the sand core side groove is connected with a cylinder core pulling mechanism; the angle pin core-pulling mechanism is used for forming a first R angle; and the cylinder core-pulling mechanism is used for forming a side groove of the sand core and a second R angle. The first R angle is formed by core pulling through the inclined pin, the die sinking force depends on the die sinking power of the core making machine, the structure is simple and convenient, the operation is simple and easy, and the economic cost is saved. The whole sand core side groove and the second R angle are formed by the air cylinder core pulling, the forming and positioning are accurate, the core pulling force, the core pulling distance and the core pulling time can be freely set, and the production efficiency is high.
Description
Technical Field
The invention relates to the technical field of mold manufacturing, in particular to a double-back-off structure of a sand core mold.
Background
In the existing die manufacturing, core pulling is often adopted for forming structures such as side holes and side recesses which are inconsistent with the die opening direction in products. But to some bilateral undercuts that all have the R angle, the shaping is more complicated, needs both sides all to adopt the structure of loosing core, or some castings can be through setting up the core pulling on one side, and later stage passes through the machine and adds the R angle of accomplishing the opposite side. The mold has relatively high manufacturing cost, a complex structure and a relatively complicated manufacturing process. And these methods are not applicable to all molds, for example: and (5) sand core molding. The reason is that: 1. the sand core material cannot be processed at the later stage and can only be processed once during core making; 2. one end of the sand shooting port can be pressed by the sand shooting plate when sand is shot, and core-pulling structures such as an air cylinder and an oil cylinder cannot be arranged.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a double-reverse structure of a sand core mould aiming at the defects of the prior art.
In order to achieve the above purpose, the invention adopts a technical scheme that:
a double-back-off structure of a sand core mold comprises a sand core mold body, wherein a sand core side groove is formed in the upper end of the sand core mold body; a first R angle and a second R angle are respectively formed on two sides of the sand core side groove; a first sand shooting end and a second sand shooting end are respectively arranged at two ends of the sand core mold body and are used for sand shooting and feeding; one side of the sand core side groove is connected with an inclined pin core pulling mechanism; the other side of the sand core side groove is connected with a cylinder core pulling mechanism; the angle pin core-pulling mechanism is used for forming a first R angle; and the cylinder core-pulling mechanism is used for forming a side groove of the sand core and a second R angle.
Furthermore, the inclined pin core pulling mechanism comprises an inclined pin, a first sliding block seat, a first sliding block core, a first sliding guide groove, a limiting block, a pull rod, a spring, a pressing block and a wedging block; an inclined guide hole is formed in the first sliding block seat; the oblique pin is obliquely inserted into the oblique guide hole; a first sliding block core is connected and arranged on one side of the first sliding block seat; the upper end of the other side of the first sliding block seat is connected with a wedging block; the lower end of the first sliding block seat is connected with a first guide sliding groove; the lower end of the other side of the first sliding block seat is connected with a limiting block; the pull rod penetrates through the limiting block; one end of the pull rod is connected with the first sliding block seat; the other end of the pull rod is connected with the pressing block; and a spring is arranged on the pull rod between the limiting block and the pressing block.
Furthermore, the cylinder core-pulling mechanism comprises a second sliding block core, a second sliding block seat, a second sliding guide groove, a connecting block, a connecting rod, a piston rod, a cylinder support, a cylinder, an air outlet and an air inlet; the lower end of the second sliding block seat is connected with a second sliding guide groove; one side of the second sliding block seat is connected with a second sliding block core; the other side of the second sliding block seat is connected with a connecting block; a connecting block is arranged in one end of the connecting rod; the other end of the connecting rod is connected with one end of the piston rod; the other end of the piston rod penetrates through the cylinder bracket and is connected with one end of the cylinder; the two sides of the cylinder bracket are fixedly connected with the sand core die body; the air cylinder is fixed through an air cylinder bracket; and the outer side of the cylinder is respectively provided with an air outlet and an air inlet.
Furthermore, the material of the sand core mould body adopts precoated sand.
Further, the angle of inclination of the angle pin is 18 °.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the first R angle on one side of the concave groove on the sand core side is formed by core pulling through the inclined pin, the mold opening force depends on the mold opening power of the core making machine, the structure is simple and convenient, the operation is simple and easy, and the economic cost is saved. The whole sand core side groove and the second R angle are formed by the air cylinder core pulling, the forming and positioning are accurate, the core pulling force, the core pulling distance and the core pulling time can be freely set, and the production efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic illustration of the disassembled connection of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of a front view structure of a sand core mold body of the present invention;
FIG. 5 is a schematic view of a back view structure of the sand core mold body of the present invention;
FIG. 6 is a schematic structural view of the angle pin core-pulling mechanism of the present invention;
FIG. 7 is a schematic structural diagram of a cylinder core-pulling mechanism of the present invention;
FIG. 8 is a schematic view of the calculation of the tilt angle of the tilt pin of the present invention;
reference numbers in the figures:
1-a sand core mould body; 2-sand core side groove; 3-first R angle; 4-second R angle; 5-a first sand shooting end; 6-a second sand shooting end; 7-angle pin; 8-a first slider seat; 9-a first slider core; 10-a first guide chute; 11-a limiting block; 12-a pull rod; 13-a spring; 14-briquetting; 15-a wedging block; 16-a second slider core; 17-a second slider seat; 18-a second guide chute; 19-connecting block; 20-a connecting rod; 21-a piston rod; 22-a cylinder support; 23-a cylinder; 24-an air outlet; 25-air inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a double-back-off structure of a sand core mold, which comprises a sand core mold body 1, wherein a sand core side groove 2 is formed in the upper end of the sand core mold body 1; a first R angle 3 and a second R angle 4 are respectively arranged on two sides of the sand core side groove 2; a first sand shooting end 5 and a second sand shooting end 6 are respectively arranged at two ends of the sand core mould body 1 and are used for sand shooting and feeding; one side of the sand core side groove 2 is connected with an inclined pin core pulling mechanism; the other side of the sand core side groove 2 is connected with a cylinder core pulling mechanism; the angle pin core-pulling mechanism is used for forming a first R angle 3; and the cylinder core-pulling mechanism is used for forming the sand core side groove 2 and the second R angle 4.
The first R angle 3 and the second R angle 4 cannot be formed at one time due to inconsistent demoulding inclination, so that an inclined pin core pulling mechanism and an air cylinder core pulling mechanism are required.
As shown in fig. 6, the taper pin core-pulling mechanism includes a taper pin 7, a first slider seat 8, a first slider core 9, a first sliding guide slot 10, a limiting block 11, a pull rod 12, a spring 13, a pressing block 14, and a wedge block 15; an inclined guide hole is formed in the first sliding block seat 8; the angle pin 7 is inserted into the angle guide hole; a first sliding block core 9 is connected and arranged on one side of the first sliding block seat 8; the upper end of the other side of the first sliding block seat 8 is connected with a wedging block 15; the lower end of the first sliding block seat 8 is connected with a first sliding guide groove 10; the lower end of the other side of the first sliding block seat 8 is connected with a limiting block 11; the pull rod 12 penetrates through the limiting block 11; one end of the pull rod 12 is connected with the first sliding block seat 8; the other end of the pull rod 12 is connected with a pressing block 14; a spring 13 is arranged on the pull rod 12 between the limiting block 11 and the pressing block 14.
As shown in fig. 7, the cylinder core-pulling mechanism includes a second slider core 16, a second slider seat 17, a second guide chute 18, a connecting block 19, a connecting rod 20, a piston rod 21, a cylinder bracket 22, a cylinder 23, an air outlet 24, and an air inlet 25; the lower end of the second sliding block seat 17 is connected with a second sliding guide groove 18; one side of the second slider seat 17 is connected with a second slider core 16; the other side of the second slider seat 17 is connected with a connecting block 19; a connecting block 19 is arranged in one end of the connecting rod 20; the other end of the connecting rod 20 is connected with one end of a piston rod 21; the other end of the piston rod 21 penetrates through the cylinder bracket 22 and is connected with one end of the cylinder 23; the two sides of the cylinder bracket 22 are fixedly connected with the sand core mould body 1; the cylinder 23 is fixed by the cylinder bracket 22; an air outlet 23 and an air inlet 24 are provided on the outer side of the cylinder 23.
The material of the sand core mould body 1 adopts precoated sand with the density of 1.3g/cm3Volume: 12087027mm3And the size is as follows: 894.895 × 532.915 × 322.765 mm. The mold opening direction of the sand core side groove 2 is vertical mold opening, the mold opening direction is different from the mold opening direction, direct molding cannot be achieved, and a first R angle 3 and a second R angle 4 are respectively arranged on two sides of the sand core side groove 2. The first R angle 3 and the second R angle 4 are equal in sizeIs 3 mm.
In the process of forming the first R angle 3 by the inclined pin core-pulling mechanism, during die assembly, the inclined pin 7 is inserted into an inclined guide hole of the first slider seat 8, the first slider seat 8 is a moving element, the first slider seat 8 limits displacement of the first slider core 9 in left and right directions and upper and lower directions, the first slider core 9 is a forming element, and the wedge block 15 limits displacement of the first slider core 9 in front and rear directions, so that the first R angle 3 of a formed product is formed. During the die sinking, the taper pin 7 up moves along with the die sinking direction, first slider seat 8 drives first slider core 9 and is the motion of loosing core left on first guide chute 10, the side is loosed core and is ended, taper pin 7 breaks away from first slider seat 8, first slider seat 8 is taut under the effect of spring 13 on stopper 11, at this moment, first guide chute 10 has fixed first slider core 9 from top to bottom, the displacement of left and right directions, stopper 11 has confirmed the displacement of first slider core 9 fore-and-aft direction, the drawing of patterns succeeds, and during the compound die, taper pin 7 can accurately insert in the oblique guide hole of first slider seat 8.
The angle of inclination of the angle pin 7 is typically 18-23 deg., where the angle of inclination of the angle pin 7 is 18 deg.. The core-pulling distance is too short, so that the mold is difficult to demold; the core-pulling distance is too long, so that the size of the die is increased, and the waste of materials and processing is caused.
The general core-pulling distance is as follows: s' + (3-5) mm
In the formula: s' is the depth of the side hole or the lateral concavity, mm; 3-5 mm is the safe distance of the angle pin for loosing core. Under the premise of ensuring the above, the core-pulling distance of the angle pin is determined to be 3+ 5-8 mm.
As shown in fig. 8, it is known that: the core drawing distance BC is equal to 8, and the inclined angle of the inclined pin is 18 degrees.
The following can be obtained: length of the angle pin: s/sin18 degree-8/sin 18 degree-25.89 mm.
The open-die forming range is S/tan18 degree, 8/tan18 degree and 24.62 mm. The mould opening stroke of the core making machine is far less than 700 mm. The sand shooting pressure is very small, generally 0.2-0.5Mpa, and the mold locking force is not large.
The cylinder core-pulling machine forms the molding sand core side groove 2 and the second R angle 4, the cylinder 23 is fixed by the cylinder support 22, the accurate positioning is realized, and the cylinder support 22 is fixedly connected with the sand core mould body 1. The air inlet 24 is formed in one end of the air cylinder 23, the air outlet 23 is formed in the other end of the air cylinder 23, the second slider seat 17 moves on the second sliding guide groove 18 through the reciprocating motion of the piston rod 21, and the second sliding guide groove 18 drives the second slider core 16 to perform core pulling and resetting motions. The core pulling mode is stable in transmission, the core pulling force and the core pulling distance can be freely set according to needs, the operation is simple and convenient, and the application range is wide.
The air supply of the air cylinder 23 is 0.6Mpa, the cylinder diameter of the clamping cylinder is 160mm, and the core pulling force F-PS-12057.6N can be provided.
Pulling force F ═ F ═ muF for pulling slide blockN＝μmg＝0.3*40*9.8＝117.6N<12057.6N (the coefficient of friction is generally 0.3), so the cylinder 23 can be actuated.
The first R angle 3 on one side of the sand core side groove 2 is formed by core pulling through the inclined pin, the mold opening force depends on the mold opening power of the core making machine, the structure is simple and convenient, the operation is simple and easy, and the economic cost is saved. The whole sand core side groove 2 and the second R angle 4 on the other side are formed by the cylinder core pulling, the forming and positioning are accurate, the core pulling force, the core pulling distance and the core pulling time can be freely set, and the production efficiency is high.
The above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that are transformed by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A double-inverted-buckle structure of a sand core mould comprises a sand core mould body (1), and is characterized in that a sand core side groove (2) is formed in the upper end of the sand core mould body (1); a first R angle (3) and a second R angle (4) are respectively formed on two sides of the sand core side groove (2); a first sand shooting end (5) and a second sand shooting end (6) are respectively arranged at two ends of the sand core mould body (1) and are used for sand shooting and feeding; one side of the sand core side groove (2) is connected with an inclined pin core pulling mechanism; the other side of the sand core side groove (2) is connected with a cylinder core pulling mechanism; the angle pin core-pulling mechanism is used for forming a first R angle (3); the cylinder core-pulling mechanism is used for forming a sand core side groove (2) and a second R angle (4).
2. The double-back-off structure of the sand core mold as claimed in claim 1, wherein the angle pin core-pulling mechanism comprises an angle pin (7), a first slide block seat (8), a first slide block core (9), a first guide chute (10), a limit block (11), a pull rod (12), a spring (13), a press block (14) and a wedging block (15); an inclined guide hole is formed in the first sliding block seat (8); the angle pin (7) is obliquely inserted into the angle guide hole; one side of the first sliding block seat (8) is connected with a first sliding block core (9); the upper end of the other side of the first sliding block seat (8) is connected with a wedging block (15); the lower end of the first sliding block seat (8) is connected with a first guide sliding groove (10); the lower end of the other side of the first sliding block seat (8) is connected with a limiting block (11); the pull rod (12) penetrates through the limiting block (11); one end of the pull rod (12) is connected with the first sliding block seat (8); the other end of the pull rod (12) is connected with a pressing block (14); and a spring (13) is arranged on the pull rod (12) between the limiting block (11) and the pressing block (14).
3. The sand core mold double-back-off structure as recited in claim 1, wherein the cylinder core-pulling mechanism comprises a second slide block core (16), a second slide block seat (17), a second guide chute (18), a connecting block (19), a connecting rod (20), a piston rod (21), a cylinder bracket (22), a cylinder (23), an air outlet (24) and an air inlet (25); the lower end of the second sliding block seat (17) is connected with a second sliding guide groove (18); one side of the second slider seat (17) is connected with a second slider core (16); the other side of the second sliding block seat (17) is connected with a connecting block (19); a connecting block (19) is arranged in one end of the connecting rod (20); the other end of the connecting rod (20) is connected with one end of a piston rod (21); the other end of the piston rod (21) penetrates through the cylinder bracket (22) and is connected with one end of the cylinder (23); the two sides of the cylinder support (22) are fixedly connected with the sand core mould body (1); the air cylinder (23) is fixed through an air cylinder bracket (22); and an air outlet (24) and an air inlet (25) are respectively arranged on the outer side of the air cylinder (23).
4. The double undercut structure of a sand core mold according to claim 3, characterized in that the material of the sand core mold body (1) is precoated sand.
5. A double undercut structure for a sand core mold according to claim 2, characterized in that the angle of inclination of the angle pin (7) is 18 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110406369.2A CN113182495A (en) | 2021-04-15 | 2021-04-15 | Double-inverted-buckle structure of sand core mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110406369.2A CN113182495A (en) | 2021-04-15 | 2021-04-15 | Double-inverted-buckle structure of sand core mold |
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| CN113182495A true CN113182495A (en) | 2021-07-30 |
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| CN202110406369.2A Pending CN113182495A (en) | 2021-04-15 | 2021-04-15 | Double-inverted-buckle structure of sand core mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226687A (en) * | 2021-12-23 | 2022-03-25 | 江苏文灿压铸有限公司 | Preparation method of new energy automobile auxiliary frame formed by split type sand core |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238395A (en) * | 1992-11-13 | 1994-08-30 | Ryobi Ltd | Device for holding sand core |
| US20080274289A1 (en) * | 2004-06-21 | 2008-11-06 | Akira Sakurai | Mold Device and Method of Manufacturing Cylinder Block |
| CN201291289Y (en) * | 2008-11-07 | 2009-08-19 | 宁波合力模具科技股份有限公司 | Inner core pulling mechanism of sand core die for casting |
| JP2016173049A (en) * | 2015-03-17 | 2016-09-29 | 本田技研工業株式会社 | Sand core for suction port formation, manufacturing method thereof, and semifinished product for cylinder head |
| CN206305418U (en) * | 2016-11-10 | 2017-07-07 | 苏州沪盛模具有限公司 | Compression mod double-slider structure |
| CN108031799A (en) * | 2018-01-31 | 2018-05-15 | 广东铭利达科技有限公司 | A kind of double core mold-opening structure for automobile fitting casting |
| CN108357062A (en) * | 2018-02-02 | 2018-08-03 | 嘉兴信元精密模具科技有限公司 | A kind of double angles gearing core-pulling sliding block mechanisms of two-stage |
| CN208374135U (en) * | 2018-07-10 | 2019-01-15 | 浙江点铁科技有限公司 | A kind of automatic core-pulling mechanism of horizontal core shooter coremaking |
| CN209550517U (en) * | 2018-12-28 | 2019-10-29 | 科马普(江门)管道供暖设备有限公司 | A kind of black soy sauce cored structure core mold |
| CN110918934A (en) * | 2019-12-12 | 2020-03-27 | 天津雄邦压铸有限公司 | Core pulling device of valve plate |
| CN210907989U (en) * | 2019-11-08 | 2020-07-03 | 无锡锡南铝业技术有限公司 | Protection device of loose core structure mould |
| CN211891801U (en) * | 2020-03-27 | 2020-11-10 | 斯达康（福建）五金科技有限公司 | Reliable and compact structure's of loosing core mould |
-
2021
- 2021-04-15 CN CN202110406369.2A patent/CN113182495A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06238395A (en) * | 1992-11-13 | 1994-08-30 | Ryobi Ltd | Device for holding sand core |
| US20080274289A1 (en) * | 2004-06-21 | 2008-11-06 | Akira Sakurai | Mold Device and Method of Manufacturing Cylinder Block |
| CN201291289Y (en) * | 2008-11-07 | 2009-08-19 | 宁波合力模具科技股份有限公司 | Inner core pulling mechanism of sand core die for casting |
| JP2016173049A (en) * | 2015-03-17 | 2016-09-29 | 本田技研工業株式会社 | Sand core for suction port formation, manufacturing method thereof, and semifinished product for cylinder head |
| CN206305418U (en) * | 2016-11-10 | 2017-07-07 | 苏州沪盛模具有限公司 | Compression mod double-slider structure |
| CN108031799A (en) * | 2018-01-31 | 2018-05-15 | 广东铭利达科技有限公司 | A kind of double core mold-opening structure for automobile fitting casting |
| CN108357062A (en) * | 2018-02-02 | 2018-08-03 | 嘉兴信元精密模具科技有限公司 | A kind of double angles gearing core-pulling sliding block mechanisms of two-stage |
| CN208374135U (en) * | 2018-07-10 | 2019-01-15 | 浙江点铁科技有限公司 | A kind of automatic core-pulling mechanism of horizontal core shooter coremaking |
| CN209550517U (en) * | 2018-12-28 | 2019-10-29 | 科马普(江门)管道供暖设备有限公司 | A kind of black soy sauce cored structure core mold |
| CN210907989U (en) * | 2019-11-08 | 2020-07-03 | 无锡锡南铝业技术有限公司 | Protection device of loose core structure mould |
| CN110918934A (en) * | 2019-12-12 | 2020-03-27 | 天津雄邦压铸有限公司 | Core pulling device of valve plate |
| CN211891801U (en) * | 2020-03-27 | 2020-11-10 | 斯达康（福建）五金科技有限公司 | Reliable and compact structure's of loosing core mould |
Non-Patent Citations (1)
| Title |
|---|
| 叶荣茂: "《铸造工艺设计简明手册》", 机械工业出版社, pages: 193 - 194 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114226687A (en) * | 2021-12-23 | 2022-03-25 | 江苏文灿压铸有限公司 | Preparation method of new energy automobile auxiliary frame formed by split type sand core |
| CN114226687B (en) * | 2021-12-23 | 2024-04-26 | 江苏文灿压铸有限公司 | Preparation method of split type sand core formed auxiliary frame of new energy automobile |
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