CN113523186A - Casting mold and process - Google Patents
Casting mold and process Download PDFInfo
- Publication number
- CN113523186A CN113523186A CN202110814002.4A CN202110814002A CN113523186A CN 113523186 A CN113523186 A CN 113523186A CN 202110814002 A CN202110814002 A CN 202110814002A CN 113523186 A CN113523186 A CN 113523186A
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- Prior art keywords
- mold
- die
- plate
- supporting plate
- left half
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a casting mold and a process, wherein the casting mold comprises a left half mold and a right half mold which are vertically arranged on a supporting plate, two groups of mold closing mechanisms which are positioned above the supporting plate and used for controlling the opening and closing of the left half mold and the right half mold, and a vibration exhaust mechanism positioned below the supporting plate; the vibration exhaust mechanism comprises a vertical moving assembly for driving the support plate to linearly move along the vertical direction and a circumferential rotating assembly for driving the support plate to rotate on the horizontal plane, the vertical moving assembly is fixedly arranged on the bottom plate, and the power output end of the vertical moving assembly is fixedly connected with the bottom surface of the support plate; the power output end of the circumferential rotating assembly is fixedly connected with the bottom plate. The production process of the casting mold comprises the following steps: s1, manufacturing a left half die and a right half die of a sand mold; and S2, mounting a supporting plate, a bottom plate, a die assembly mechanism and a vibration exhaust mechanism. The invention can improve the vibration effect and improve the production quality of the assembly.
Description
Technical Field
The invention belongs to the technical field of casting molds, and particularly relates to a casting mold and a casting process.
Background
In the field of machining, the use of casting molds is an indispensable tool, which enables precision machining of the required equipment parts. When producing some castings with complex structures, because the shapes in the cavity of the casting mold are uneven, the metal liquid is often permeated to all positions of the cavity in a vibration mode in the casting process. Casting mould among the prior art is mostly the components of a whole that can function independently structure that the separation set up with vibrating device, and common vibrating device generally only can carry out the vibration of single direction to the casting mould, and the vibration effect is unsatisfactory, still can have the metal liquid not to permeate the condition appearance of die cavity particular position completely to reduce the casting yield, the product defective rate increases.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a casting mold and a casting process so as to achieve the purposes of improving the vibration effect and improving the production quality of components.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a casting mold comprises a left half mold and a right half mold which are vertically arranged on a supporting plate in a parting manner, two groups of mold closing mechanisms which are arranged above the supporting plate and used for controlling the left half mold and the right half mold to open and close, and a vibration exhaust mechanism arranged below the supporting plate;
the vibration exhaust mechanism comprises a vertical moving assembly for driving the support plate to linearly move along the vertical direction and a circumferential rotating assembly for driving the support plate to rotate on the horizontal plane, the vertical moving assembly is fixedly arranged on the bottom plate, and the power output end of the vertical moving assembly is fixedly connected with the bottom surface of the support plate; the power output end of the circumferential rotating assembly is fixedly connected with the bottom plate.
As the limitation of the invention, the vertical moving assembly comprises an air cylinder, an upper sleeve and a lower sleeve which are sleeved outside the air cylinder, the upper sleeve is fixedly arranged on the supporting plate, the lower sleeve is fixedly arranged on the bottom plate, the upper sleeve is sleeved in the lower sleeve, and a buffer spring sleeved outside the air cylinder is fixedly arranged in the lower sleeve between the bottom end of the upper sleeve and the bottom plate.
As a further limitation of the invention, the circumferential motion assembly is an electric motor.
As another limitation of the invention, the two sets of die closing mechanisms respectively correspond to the left half die and the right half die, and the two sets of die closing mechanisms have the same structure and are symmetrically arranged relative to the vertical parting line, each set of die closing mechanism comprises a vertical plate fixedly connected with the supporting plate, a horizontal linear driver fixed on the vertical plate, and a die closing buffer spring fixed on the vertical plate, and the power output end of the horizontal linear driver and the other end of the die closing buffer spring are fixedly connected with the corresponding left half die or right half die.
As a further limitation of the invention, a plurality of clamping grooves are formed in the supporting plate at different distances from the joint line, and clamping blocks matched with the clamping grooves are fixed at the bottom end of the vertical plate.
As a third limitation of the invention, the mold further comprises two groups of cooling mechanisms respectively fixed on the outer surfaces of the left half mold and the right half mold, wherein each cooling mechanism comprises a main water inlet pipe provided with a water inlet, a main water discharge pipe provided with a water outlet, and a plurality of cooling branch pipes communicated and connected between the main water discharge pipe and the main water inlet pipe, and a control valve for controlling the circulation of cooling water in each cooling branch pipe is arranged between each cooling branch pipe and the main water inlet pipe.
The invention also provides a production process of the casting die, which adopts the technical scheme as follows: the method comprises the following steps:
s1, manufacturing a sand mold left half mold and a sand mold right half mold, wherein the sand mold raw materials of the left half mold and the right half mold comprise the following components in parts by weight:
75-100 parts of silica sand with the granularity of 150-200 meshes, 10-40 parts of reclaimed sand with the granularity of 200-260 meshes, 30-40 parts of water glass, 10-15 parts of polyacrylamide solution and 1-2 parts of sodium stearate; wherein the modulus of the water glass is 2-3, and the density is 1.3g/cm 3;
and S2, mounting a supporting plate, a bottom plate, a die assembly mechanism and a vibration exhaust mechanism.
As a limitation of the present invention, in step S2, when the clamping mechanism is installed, the clamping blocks of the vertical plate are selectively inserted into the corresponding clamping grooves according to the size of the sand mold.
Due to the adoption of the technical scheme, compared with the prior art, the production process of the casting mold has the following beneficial effects:
(1) according to the invention, the vibration exhaust mechanism is arranged, and the vertical movement of the support plate and the circular movement of the horizontal plane are driven, so that molten metal poured in the cavity can be sufficiently vibrated in the casting process, the molten metal can flow to all directions of the cavity, the filling effect of the molten metal is ensured, the casting yield is improved, and the product reject ratio is reduced.
(2) The vertical moving assembly can ensure the moving straightness by arranging the upper sleeve and the lower sleeve, and can play a role in buffering in the process of moving up and down linearly by combining the arranged buffer spring.
(3) The die-closing mechanism can automatically close the die by arranging the horizontal linear driver; through the die closing buffer spring, an effective buffering effect can be achieved during die closing, and large impact force is avoided when the left half die and the right half die are closed.
(4) According to the invention, the plurality of clamping grooves are arranged, so that the vertical plate can be selectively clamped on the corresponding clamping grooves according to the sizes of the left half die and the right half die to adjust the elastic force of the die closing buffer spring, and the die closing buffer spring has a wide application range and is suitable for practical use.
(5) According to the invention, by arranging the cooling mechanism, cooling water can be selectively introduced into the corresponding cooling branch pipe according to the arrangement of the cavity, so that the cooling speed of the hot spot part in the cavity can be increased in the casting process, the casting defects generated at the hot spot part can be reduced, the cooling speed of the whole casting can be increased, the production efficiency can be improved, and the use is convenient. And the generation of casting defects can be effectively reduced by combining with a vibration exhaust mechanism.
(6) According to the invention, the left half die and the right half die of the sand mold, which are made of specific raw materials, can have higher strength and air permeability when the vibration exhaust mechanism vibrates, and can play a role in conducting heat in the cooling process of the cooling mechanism.
Drawings
The invention is described in further detail below with reference to the figures and the embodiments.
FIG. 1 is a schematic structural view of example 1 of the present invention;
fig. 2 is a schematic structural view of a cooling mechanism according to embodiment 1 of the present invention.
In the figure: 1. a left half mold; 2. a right half mold; 3. a support plate; 4. a base plate; 5. a cylinder; 6. an upper sleeve; 7. a lower sleeve; 8. a buffer spring; 9. a motor; 10. a vertical plate; 11. a horizontal linear drive; 12. a die assembly buffer spring; 13. a card slot; 14. a clamping block; 15. a main water inlet pipe; 16. a water inlet; 17. a water outlet; 18. a main drainage pipe; 19. cooling the branch pipe; 20. and controlling the valve.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the description of the preferred embodiment is only for purposes of illustration and understanding, and is not intended to limit the invention.
EXAMPLE 1A casting mold
The present embodiment includes a supporting plate 3, a left half mold 1, a right half mold 2, two mold clamping mechanisms, a vibration exhaust mechanism, and two cooling mechanisms.
The left half die 1 and the right half die 2 are placed on the supporting plate 3, the left half die 1 and the right half die 2 are vertically parted, and the left half die 1 and the right half die 2 both comprise sand boxes and sand molds.
The two groups of mould closing mechanisms are positioned above the supporting plate 3, are respectively arranged corresponding to the left half mould 1 and the right half mould 2 and are used for controlling the opening and closing of the left half mould 1 and the right half mould 2, and are identical in structure and symmetrically arranged relative to a vertical parting line. The following description will be given taking as an example the structure of a combination of mold clamping mechanisms including a vertical plate 10, a horizontal linear actuator 11, and a mold clamping damper spring 12.
The vertical plate 10 is arranged on the supporting plate 3, a horizontal linear driver 11 and a die assembly buffer spring 12 are fixedly connected to the vertical plate 10, and the power output end of the horizontal linear driver 11 and the other end of the die assembly buffer spring 12 are fixedly connected with the corresponding left half die 1 or right half die 2. Namely, a horizontal linear driver 11 and a mold closing buffer spring 12 in a mold closing mechanism for controlling the mold closing of the left plate mold 1 are fixedly connected between the left half mold 1 and a vertical plate 10 in the mold closing mechanism. The horizontal linear actuator 11 may be a linear motor, a linear cylinder, a lead screw, or the like, which can move linearly. In order to adapt to the size of a mold and control the elastic force of the mold closing buffer spring 12, a plurality of clamping grooves 13 are formed in the supporting plate 3, the distance between each clamping groove 13 and a joint line is different, the axis of each clamping groove 13 is parallel to the joint line, and the cross section of each clamping groove 13 is in a T shape. The bottom end of the vertical plate 10 is fixed with a clamping block 14, and the clamping block 14 can be clamped in the clamping groove 13 and separated from the clamping groove 13 so as to control the elastic force of the pair of mold buffer springs 12.
The vibration exhaust mechanism is positioned below the supporting plate 3 and comprises a vertical moving assembly fixedly arranged between the supporting plate 3 and the bottom plate 4 and a circumferential rotating assembly fixedly arranged below the bottom plate 4. The vertical moving assembly is used for driving the supporting plate 3 to linearly move along the vertical direction and comprises an air cylinder 5, an upper sleeve 6, a lower sleeve 7 and a buffer spring 8. The bottom end of the cylinder 5 is fixed on the bottom plate 4, and the power output end of the cylinder 5 is fixedly connected with the bottom surface of the supporting plate 3. The upper sleeve 6 and the lower sleeve 7 are sleeved outside the cylinder 5, the bottom end of the upper sleeve 6 is fixedly arranged on the supporting plate 3, the lower sleeve 7 is fixedly arranged on the bottom plate 4, the upper sleeve 6 is sleeved in the lower sleeve 7, and the upper sleeve 6 can slide up and down in the lower sleeve 7. Buffer spring 8 cover is put outside cylinder 5, is arranged in lower sleeve 7, and buffer spring 8's top and the fixed linking to each other of 6 bottom ends of upper sleeve, and buffer spring 8's bottom and bottom plate 4 are fixed linking to each other to when the lift through cylinder 5 drove upper sleeve 6 and reciprocate along lower sleeve 7, play the cushioning effect by buffer spring 8's flexible.
The circumferential rotating component is used for driving the supporting plate 3 to rotate on the horizontal plane, and the circumferential rotating component can adopt a mechanical structure which can realize the rotation of the supporting plate 3 around the center in the prior art, such as a rotating cylinder, gear transmission, chain transmission and the like. The round movable component in the embodiment is a motor 9, and the power output end of the motor 9 is fixedly connected with the bottom plate 4 so as to drive the supporting plate 3 to rotate by driving the bottom plate 4 to rotate.
The cooling mechanisms are provided with two groups, are respectively and correspondingly fixed on the outer surfaces of the left half mould 1 and the right half mould 2 and are used for cooling the molten metal in the cavities of the left half mould and the right half mould. The two groups of cooling mechanisms have the same structure and are symmetrically arranged relative to the vertical parting line. The following description will be given taking as an example the structure of a group of cooling means including a main water inlet pipe 15, a main water discharge pipe 18, and a plurality of cooling branch pipes 19. The main water inlet pipe 15 is positioned at the frame above the sand box, and a water inlet 16 is formed in the main water inlet pipe 15; the main drainage pipe 18 is positioned at the bottom end of the sand box, and a drainage port 17 is arranged on the main drainage pipe 18. The main water inlet pipe 15 and the main water outlet pipe 18 are connected to each other through a plurality of cooling branch pipes 19, and the cooling branch pipes 19 are located on the side surface of the molding box. A control valve 20 for controlling the flow of cooling water in each cooling branch pipe 19 is provided between each cooling branch pipe 19 and the main water inlet pipe 15.
Before the mold closing is carried out by using the embodiment, the clamping blocks 14 of the vertical plate 10 are selectively clamped on the corresponding clamping grooves 13 according to the elastic force of the mold closing buffer spring 12 and the sizes of the left half mold 1 and the right half mold 2, and the left half mold 1 and the right half mold 2 are closed under the driving of the horizontal linear driver 11.
When using this embodiment to cast, cylinder 5 goes up and down in the vertical removal subassembly, drives backup pad 3 and reciprocates, and the motor 9 of circumference runner assembly drives bottom plate 4 rotatory simultaneously to it has the rotary motion of horizontal plane to drive backup pad 3, so that the molten metal in the die cavity fills fully.
When the embodiment is used for pouring molten metal or cooling castings, the control valves 20 of the corresponding cooling branch pipes 19 can be selectively opened according to the positions of the hot spots or the positions of the castings to be cooled, cooling water is injected into the water inlet main pipe 15 through the water inlet 16 of the water inlet main pipe 15, the cooling water flows out through the water outlet 17 of the water discharge main pipe 18 after passing through each cooling branch pipe 19, and good heat exchange and cooling effects are achieved on the positions of the hot spots of the castings and the positions needing to be accelerated in cooling speed through circulation of the cooling water.
Example 2 production Process of casting mold
This example is the production process of example 1, comprising the steps of:
s1, manufacturing a left half die 1 and a right half die 2, wherein the sand mold raw materials of the left half die 1 and the right half die 2 comprise the following components in parts by weight:
75-100 parts of silica sand with the granularity of 150-200 meshes, 10-40 parts of reclaimed sand with the granularity of 200-260 meshes, 30-40 parts of water glass, 10-15 parts of polyacrylamide solution and 1-2 parts of sodium stearate; wherein the water glass has a modulus of 2-3 and a density of 1.3g/cm3。
And S2, installing a supporting plate 3, a bottom plate 4, a die assembly mechanism, a vibration exhaust mechanism and a cooling mechanism. When the clamping mechanism is installed, the clamping blocks 14 of the vertical plate 10 are selected to be inserted into the corresponding clamping grooves 13 according to the size of the sand mold.
EXAMPLES 3 to 7 production Process of casting mold
Examples 3-7 are the same as example 2 except that the sand mold raw materials are different in the parts by weight:
although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A casting mold, characterized in that: the device comprises a left half die and a right half die which are vertically arranged on a supporting plate for parting, two groups of die clamping mechanisms which are arranged above the supporting plate and used for controlling the left half die and the right half die to open and close, and a vibration exhaust mechanism arranged below the supporting plate;
the vibration exhaust mechanism comprises a vertical moving assembly for driving the support plate to linearly move along the vertical direction and a circumferential rotating assembly for driving the support plate to rotate on the horizontal plane, the vertical moving assembly is fixedly arranged on the bottom plate, and the power output end of the vertical moving assembly is fixedly connected with the bottom surface of the support plate; the power output end of the circumferential rotating assembly is fixedly connected with the bottom plate.
2. A casting mold according to claim 1, characterized in that: the vertical moving assembly comprises an air cylinder, an upper sleeve and a lower sleeve, wherein the upper sleeve and the lower sleeve are sleeved outside the air cylinder, the upper sleeve is fixedly arranged on the supporting plate, the lower sleeve is fixedly arranged on the bottom plate, the upper sleeve is sleeved in the lower sleeve, and a buffer spring sleeved outside the air cylinder is fixedly arranged in the lower sleeve between the bottom end of the upper sleeve and the bottom plate.
3. A casting mold according to claim 1, characterized in that: the circumferential rotating component is a motor.
4. A casting mold according to any of claims 1 to 3, characterized in that: the two sets of die closing mechanisms respectively correspond to the left half die and the right half die, are identical in structure and are symmetrically arranged relative to a vertical parting line, each set of die closing mechanism comprises a vertical plate fixedly connected with the supporting plate, a horizontal linear driver fixed on the vertical plate and a die closing buffer spring fixed on the vertical plate, and the power output end of the horizontal linear driver and the other end of the die closing buffer spring are fixedly connected with the corresponding left half die or the right half die.
5. A casting mold according to claim 4, characterized in that: a plurality of clamping grooves are formed in the supporting plate at different distances from the joint line, and clamping blocks matched with the clamping grooves are fixed at the bottom end of the vertical plate.
6. A casting mold according to any one of claims 1 to 3, 5, wherein: the cooling mechanism comprises a water inlet main pipe provided with a water inlet, a water drainage main pipe provided with a water outlet, a plurality of cooling branch pipes communicated with the water inlet main pipe, and a control valve for controlling the circulation of cooling water in each cooling branch pipe, wherein the water inlet main pipe and the water drainage main pipe are connected through the cooling branch pipes.
7. A process for the production of a casting mould as claimed in claims 1 to 6, characterized by the steps of:
s1, manufacturing a sand mold left half mold and a sand mold right half mold, wherein the sand mold raw materials of the left half mold and the right half mold comprise the following components in parts by weight:
75-100 parts of silica sand with the granularity of 150-200 meshes, 10-40 parts of reclaimed sand with the granularity of 200-260 meshes, 30-40 parts of water glass, 10-15 parts of polyacrylamide solution and 1-up to e2 parts of (1); wherein the water glass has a modulus of 2-3 and a density of 1.3g/cm3；
And S2, mounting a supporting plate, a bottom plate, a die assembly mechanism and a vibration exhaust mechanism.
8. The production process of a casting mold according to claim 7, characterized in that: in step S2, when the mold clamping mechanism is installed, the fixture blocks of the vertical plate are selectively inserted into the corresponding slots according to the size of the sand mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110814002.4A CN113523186A (en) | 2021-07-19 | 2021-07-19 | Casting mold and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110814002.4A CN113523186A (en) | 2021-07-19 | 2021-07-19 | Casting mold and process |
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| Publication Number | Publication Date |
|---|---|
| CN113523186A true CN113523186A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110814002.4A Pending CN113523186A (en) | 2021-07-19 | 2021-07-19 | Casting mold and process |
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| CN (1) | CN113523186A (en) |
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| CN101444823A (en) * | 2008-12-26 | 2009-06-03 | 济南圣泉集团股份有限公司 | Caking agent |
| CN106925717A (en) * | 2017-04-28 | 2017-07-07 | 三门峡阳光铸材有限公司 | Founding materials inorganic binder |
| CN206567497U (en) * | 2017-02-26 | 2017-10-20 | 天津通达日上金属制品有限公司 | A kind of high-efficiency time-delay cooled gravity casting mold |
| CN207592739U (en) * | 2017-11-17 | 2018-07-10 | 昆明理工大学 | A kind of device for preparing rich chromium cast iron base ceramic reinforced composite |
| CN108705068A (en) * | 2018-07-13 | 2018-10-26 | 高邮市力博机床附件厂 | A kind of cast member mold that can be cooled down rapidly |
| CN208033569U (en) * | 2018-03-09 | 2018-11-02 | 山东泰山钢铁集团有限公司 | A kind of moltening mold castings heat sink |
| CN108788082A (en) * | 2018-07-17 | 2018-11-13 | 黄仕平 | A kind of rotary hardware dies with radiator structure |
| CN109290554A (en) * | 2018-09-17 | 2019-02-01 | 广德亚太汽车智能制动系统有限公司 | A kind of processing automobile brake disc is with pouring mold |
| CN208730225U (en) * | 2018-08-10 | 2019-04-12 | 深圳市永煜精密模具塑胶制品有限公司 | A kind of precision die positioning device |
| CN109807311A (en) * | 2019-03-05 | 2019-05-28 | 溧阳市新力机械铸造有限公司 | A kind of cooling heat radiator and casting solidification method improving casting solidification efficiency |
| CN109809673A (en) * | 2019-03-28 | 2019-05-28 | 安徽古井贡酒股份有限公司 | A kind of equipment for cooling die of glass bottle and jar manufacturing machine |
| CN112590122A (en) * | 2020-11-28 | 2021-04-02 | 武汉市盛祥塑料制品有限公司 | Injection mold for eliminating bubbles in injection molding material |
| CN112776289A (en) * | 2020-12-21 | 2021-05-11 | 苏州锦坤模塑有限公司 | Injection molding equipment control system capable of realizing accurate sizing |
| CN213317524U (en) * | 2020-09-01 | 2021-06-01 | 武汉鑫品源精密制造有限公司 | Mould for processing plug cap |
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2021
- 2021-07-19 CN CN202110814002.4A patent/CN113523186A/en active Pending
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| CN101444823A (en) * | 2008-12-26 | 2009-06-03 | 济南圣泉集团股份有限公司 | Caking agent |
| CN206567497U (en) * | 2017-02-26 | 2017-10-20 | 天津通达日上金属制品有限公司 | A kind of high-efficiency time-delay cooled gravity casting mold |
| CN106925717A (en) * | 2017-04-28 | 2017-07-07 | 三门峡阳光铸材有限公司 | Founding materials inorganic binder |
| CN207592739U (en) * | 2017-11-17 | 2018-07-10 | 昆明理工大学 | A kind of device for preparing rich chromium cast iron base ceramic reinforced composite |
| CN208033569U (en) * | 2018-03-09 | 2018-11-02 | 山东泰山钢铁集团有限公司 | A kind of moltening mold castings heat sink |
| CN108705068A (en) * | 2018-07-13 | 2018-10-26 | 高邮市力博机床附件厂 | A kind of cast member mold that can be cooled down rapidly |
| CN108788082A (en) * | 2018-07-17 | 2018-11-13 | 黄仕平 | A kind of rotary hardware dies with radiator structure |
| CN208730225U (en) * | 2018-08-10 | 2019-04-12 | 深圳市永煜精密模具塑胶制品有限公司 | A kind of precision die positioning device |
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| CN109809673A (en) * | 2019-03-28 | 2019-05-28 | 安徽古井贡酒股份有限公司 | A kind of equipment for cooling die of glass bottle and jar manufacturing machine |
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