CN110842135A - Molding sand mixer for clutch pressure plate casting - Google Patents
Molding sand mixer for clutch pressure plate casting Download PDFInfo
- Publication number
- CN110842135A CN110842135A CN201911247937.8A CN201911247937A CN110842135A CN 110842135 A CN110842135 A CN 110842135A CN 201911247937 A CN201911247937 A CN 201911247937A CN 110842135 A CN110842135 A CN 110842135A
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- CN
- China
- Prior art keywords
- sand
- lifting
- feeding
- conveying
- mixing device
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0481—Blending, mixing, kneading or stirring; Methods therefor using vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0472—Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a molding sand mixer for a clutch pressure plate casting, which comprises a sand feeding device, a sand mixing device and a lifting device, wherein the sand feeding device comprises a sand feeding big arm, a sand feeding small arm and a lifting weight; the sand conveying big arm and the sand conveying small arm are internally provided with a conveyer belt or a screw rod to convey the molding sand to the front end by using a motor; the lower parts of the sand feeding big arm and the sand feeding small arm are fixed on the lifting weight; the lifting device comprises two groups of lifting arms which are respectively fixedly connected with the lifting weight and the sand mixing device, and a lifting motor which drives the lifting arms to rotate; a molding sand mixing device and a liquid material supply system are arranged in the sand mixing device; the sand mixing device is internally provided with a screw to realize sand mixing and conveying, and the liquid material supply system comprises a curing agent adding nozzle, a resin adding nozzle and an electromagnetic reversing valve. The sand mixer reduces the periodic exciting force generated by the motor in the sand mixing to make the vertical sand mixing head forcibly vibrate, thereby avoiding causing the two sides of the sand feeding small arm to bear the lateral force to aggravate the vibration of the equipment.
Description
Technical Field
The invention relates to the field of pig iron casting, in particular to a molding sand mixer for a clutch pressure plate casting.
Background
The sand mixer is used for uniformly mixing sand with a liquid curing agent and resin, and the curing agent and the resin are uniformly distributed and effectively coated on the surface of sand grains to form the coated molding sand suitable for manufacturing a mold.
The existing sand mixer utilizes a lifting device to obliquely lift a sand conveying big arm, so that a sand mixing head is forced to vibrate by the aid of periodic exciting force generated by a sand mixing motor in sand mixing, so that two sides of a sand conveying small arm are caused to bear lateral force to aggravate equipment vibration, and meanwhile two groups of liquid materials in an existing liquid material supply system can generate crystals or precipitates by themselves to cause failure of a liquid material outlet check valve, so that bubbles appear in a pipeline.
Disclosure of Invention
The invention aims to solve the problems and provides a sand mixer for clutch pressure plate castings, which reduces vibration of exciting force and prevents liquid material from flowing back.
In order to achieve the purpose, the invention is realized by the following technical scheme: a molding sand mixer for a clutch pressure plate casting comprises a sand feeding device, a sand mixing device and a lifting device, wherein the sand feeding device comprises a large sand feeding arm, a small sand feeding arm and a lifting weight; the sand conveying big arm and the sand conveying small arm are internally provided with a conveyer belt or a screw rod to convey the molding sand to the front end by using a motor; the lower parts of the sand feeding big arm and the sand feeding small arm are fixed on the lifting weight; the lifting device comprises two groups of lifting arms which are respectively fixedly connected with the lifting weight and the sand mixing device, and a lifting motor which drives the lifting arms to rotate; the two groups of lifting arms rotate around the bottom, and the length and the cutting angle of the lifting arms are always equal in the lifting process; a molding sand mixing device and a liquid material supply system are arranged in the sand mixing device; the sand mixing device is internally provided with a screw rod to realize sand mixing and conveying, and the liquid material supply system comprises a curing agent adding nozzle, a resin adding nozzle and an electromagnetic reversing valve.
Furthermore, the molding sand inlet on the sand feeding big arm and the joint of the sand feeding small arm and the sand feeding big arm are respectively provided with an air suction opening for removing dust and irritant gas in the molding sand.
In particular, the axial position of the lifting weight is collinear with the axis of the mixing shaft of the mixing device.
Still further, the liquid material supply system further comprises a curing agent pump, a resin adding pump and a throttle valve; the curing agent pump is communicated with the curing agent adding nozzle through a throttle valve and is communicated with the two-position three-way electromagnetic valve, and the resin adding pump is communicated with the resin adding nozzle through the throttle valve and is communicated with the two-position three-way electromagnetic valve; a pressure switch is also arranged between the liquid material supply system and the sand mulling device; and the two groups of two-position three-way electromagnetic valves and the pressure switch are communicated with compressed air through one group of two-position five-way electromagnetic valves.
In conclusion, the invention has the following beneficial effects: the molding sand mixer reduces the periodic exciting force generated by the motor in the mixing sand to lead the vertical sand mixing head to vibrate forcibly, thereby avoiding causing the two sides of the sand feeding small arm to bear the lateral force to intensify the vibration of the equipment, and the specific expression is as follows:
(1) the lifting device adopts a parallel double-crank mechanism, the lifting speed and the lifting angle are the same, and the position of the axis of the lifting weight and the axis of the sand mixing shaft of the sand mixing device are kept on the same straight line all the time;
(2) the molding sand mixer reduces the periodic exciting force generated by the motor in the mixing sand to make the vertical mixing head forcibly vibrate, thereby avoiding causing the two sides of the sand feeding small arm to bear the lateral force to aggravate the vibration of the equipment;
(3) the liquid material valve has the advantages of small volume, large flow, high pollution resistance, capability of immediately sealing the liquid outlet during shutdown to prevent liquid material from flowing back, and simplification of the pneumatic liquid material valve by utilizing the throttle valve to replace a two-position two-way electromagnetic valve of an atomizing device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a liquid material supply system according to the present invention.
Detailed Description
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Referring to fig. 1 and 2, a sand mixer for clutch pressure plate casting includes a sand feeding device, a sand mixer and a lifting device, wherein the sand feeding device includes a sand feeding large arm 1, a sand feeding small arm 2 and a lifting weight 3; a conveyer belt or a screw rod is arranged in the sand feeding big arm 1 and the sand feeding small arm 2 to convey the molding sand to the front end by a motor; the lower parts of the sand feeding big arm 1 and the sand feeding small arm 2 are fixed on the lifting weight 3; the lifting device comprises two groups of lifting arms 4 which are respectively fixedly connected with the lifting weight and the sand mixing device, and a lifting motor 5 which drives the lifting arms 4 to rotate; the two groups of lifting arms 4 rotate around the bottom, and the length and the cutting angle of the lifting arms 4 are always equal in the lifting process; the sand mixer is internally provided with a molding sand mixer 6 and a liquid material supply system; a screw rod is arranged in the sand mixing device to realize sand mixing and conveying, and the liquid material supply system comprises a curing agent adding nozzle 7, a resin adding nozzle 8 and an electromagnetic reversing valve.
And the connection parts of the molding sand inlet 1-1 on the sand feeding big arm 1, the sand feeding small arm 2 and the sand feeding big arm 1 are also respectively provided with an air suction opening 9 for removing dust and irritant gas in the molding sand.
The axial line position of the lifting weight 3 is on the same straight line with the axial line of the sand mixing shaft of the sand mixing device.
The liquid material supply system also comprises a curing agent pump 10, a resin adding pump 11 and a throttle valve 12; the curing agent pump 10 is communicated with the curing agent adding nozzle 7 through a throttle valve 12 and a two-position three-way electromagnetic valve 13, and the resin adding pump 8 is communicated with the resin adding nozzle 8 through a throttle valve and a two-position three-way electromagnetic valve 14; a pressure switch 15 is also arranged between the liquid material supply system and the sand mixing device; the two sets of two-position three-way solenoid valves and the pressure switch 15 are communicated with the compressed air through a set of two-position five-way solenoid valves 16.
In addition, it is worth proposing that in actual use, the atomization device of the resin and the curing agent consumes little air, the pressure is not high, and simultaneously, two groups of liquid material valves also work simultaneously and stop, so that a pressure switch is added in the air path, the sand mixer can work only after the compressed air pressure reaches a set value (more than 0.4 MPA), the air path electromagnetic valve is simplified, the liquid outlet can be immediately sealed when the machine is stopped, and the liquid material can be prevented from flowing back.
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a clutch pressure disk is molding sand roller for foundry goods, it includes send sand device, mulling device and hoisting device, its characterized in that: the sand conveying device comprises a sand conveying big arm, a sand conveying small arm and a lifting weight; the sand conveying big arm and the sand conveying small arm are internally provided with a conveyer belt or a screw rod to convey the molding sand to the front end by using a motor; the lower parts of the sand feeding big arm and the sand feeding small arm are fixed on the lifting weight; the lifting device comprises two groups of lifting arms which are respectively fixedly connected with the lifting weight and the sand mixing device, and a lifting motor which drives the lifting arms to rotate; the two groups of lifting arms rotate around the bottom, and the length and the cutting angle of the lifting arms are always equal in the lifting process; a molding sand mixing device and a liquid material supply system are arranged in the sand mixing device; the sand mixing device is internally provided with a screw rod to realize sand mixing and conveying, and the liquid material supply system comprises a curing agent adding nozzle, a resin adding nozzle and an electromagnetic reversing valve.
2. The sand mixer for a clutch pressure plate casting according to claim 1, characterized in that: and the molding sand inlet on the sand feeding big arm and the joint of the sand feeding small arm and the sand feeding big arm are also respectively provided with an air suction opening for removing dust and irritant gas in the molding sand.
3. The sand mixer for a clutch pressure plate casting according to claim 2, characterized in that: the axial line position of the lifting weight and the axial line of a sand mixing shaft of the sand mixing device are on the same straight line.
4. The sand mixer for a clutch pressure plate casting according to claim 3, characterized in that: the liquid material supply system also comprises a curing agent pump, a resin adding pump and a throttle valve; the curing agent pump is communicated with the curing agent adding nozzle through a throttle valve and is communicated with the two-position three-way electromagnetic valve, and the resin adding pump is communicated with the resin adding nozzle through the throttle valve and is communicated with the two-position three-way electromagnetic valve; a pressure switch is also arranged between the liquid material supply system and the sand mulling device; and the two groups of two-position three-way electromagnetic valves and the pressure switch are communicated with compressed air through one group of two-position five-way electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247937.8A CN110842135A (en) | 2019-12-09 | 2019-12-09 | Molding sand mixer for clutch pressure plate casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911247937.8A CN110842135A (en) | 2019-12-09 | 2019-12-09 | Molding sand mixer for clutch pressure plate casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110842135A true CN110842135A (en) | 2020-02-28 |
Family
ID=69608144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911247937.8A Pending CN110842135A (en) | 2019-12-09 | 2019-12-09 | Molding sand mixer for clutch pressure plate casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110842135A (en) |
Citations (17)
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|---|---|---|---|---|
| CN102784880A (en) * | 2012-07-27 | 2012-11-21 | 宁夏共享集团有限责任公司 | Resin self-hardening sand mixing machine |
| CN202921861U (en) * | 2012-11-09 | 2013-05-08 | 党庆风 | Novel double-arm continuous sand mixer |
| CN103978153A (en) * | 2014-06-04 | 2014-08-13 | 无锡锡南铸造机械有限公司 | Primary-secondary surface and back sand continuous sand mill |
| CN204639039U (en) * | 2014-12-08 | 2015-09-16 | 安徽恒升铸业有限公司 | A kind of both arms puddle mixer |
| CN205008535U (en) * | 2015-09-08 | 2016-02-03 | 天津市森江机电设备科技有限公司 | Compact structure type roller mill |
| CN105478664A (en) * | 2015-12-27 | 2016-04-13 | 无锡市灵通铸造有限公司 | Sand mixer |
| CN105750490A (en) * | 2016-03-23 | 2016-07-13 | 侯松涛 | Sand mixer |
| CN106001406A (en) * | 2016-08-11 | 2016-10-12 | 海安海太铸造有限公司 | Sand mixer used for casting |
| CN107234210A (en) * | 2017-06-19 | 2017-10-10 | 宝得粉末注射成形（常熟）有限公司 | Two-way self-hardening sand mulling styling apparatus |
| CN107282873A (en) * | 2017-07-21 | 2017-10-24 | 李金平 | A kind of two-arm resin sand flow mixer control system |
| CN206747520U (en) * | 2017-03-24 | 2017-12-15 | 郑州郑飞锻铸有限责任公司 | A kind of full-automatic non-ferrous casting improves device with both arms mulling |
| CN107999697A (en) * | 2018-01-23 | 2018-05-08 | 江西力天机械有限公司 | A kind of two-arm resin sand mixer |
| CN207873018U (en) * | 2018-02-07 | 2018-09-18 | 无锡正杰机械科技有限公司 | A kind of both arms sand mixer waste gas collection device |
| CN207952526U (en) * | 2018-02-28 | 2018-10-12 | 保定万利达铸造有限公司 | Mobile both arms flow mixer |
| CN208214210U (en) * | 2018-04-12 | 2018-12-11 | 成都锦兴机电有限责任公司 | A kind of Novel double-arm sand mixer |
| CN110385396A (en) * | 2019-06-21 | 2019-10-29 | 青岛盛美机械有限公司 | A kind of sand mixer |
| CN209736555U (en) * | 2019-04-22 | 2019-12-06 | 青岛双星智能铸造装备有限公司 | Double-arm continuous sand mixer |
-
2019
- 2019-12-09 CN CN201911247937.8A patent/CN110842135A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784880A (en) * | 2012-07-27 | 2012-11-21 | 宁夏共享集团有限责任公司 | Resin self-hardening sand mixing machine |
| CN202921861U (en) * | 2012-11-09 | 2013-05-08 | 党庆风 | Novel double-arm continuous sand mixer |
| CN103978153A (en) * | 2014-06-04 | 2014-08-13 | 无锡锡南铸造机械有限公司 | Primary-secondary surface and back sand continuous sand mill |
| CN204639039U (en) * | 2014-12-08 | 2015-09-16 | 安徽恒升铸业有限公司 | A kind of both arms puddle mixer |
| CN205008535U (en) * | 2015-09-08 | 2016-02-03 | 天津市森江机电设备科技有限公司 | Compact structure type roller mill |
| CN105478664A (en) * | 2015-12-27 | 2016-04-13 | 无锡市灵通铸造有限公司 | Sand mixer |
| CN105750490A (en) * | 2016-03-23 | 2016-07-13 | 侯松涛 | Sand mixer |
| CN106001406A (en) * | 2016-08-11 | 2016-10-12 | 海安海太铸造有限公司 | Sand mixer used for casting |
| CN206747520U (en) * | 2017-03-24 | 2017-12-15 | 郑州郑飞锻铸有限责任公司 | A kind of full-automatic non-ferrous casting improves device with both arms mulling |
| CN107234210A (en) * | 2017-06-19 | 2017-10-10 | 宝得粉末注射成形（常熟）有限公司 | Two-way self-hardening sand mulling styling apparatus |
| CN107282873A (en) * | 2017-07-21 | 2017-10-24 | 李金平 | A kind of two-arm resin sand flow mixer control system |
| CN107999697A (en) * | 2018-01-23 | 2018-05-08 | 江西力天机械有限公司 | A kind of two-arm resin sand mixer |
| CN207873018U (en) * | 2018-02-07 | 2018-09-18 | 无锡正杰机械科技有限公司 | A kind of both arms sand mixer waste gas collection device |
| CN207952526U (en) * | 2018-02-28 | 2018-10-12 | 保定万利达铸造有限公司 | Mobile both arms flow mixer |
| CN208214210U (en) * | 2018-04-12 | 2018-12-11 | 成都锦兴机电有限责任公司 | A kind of Novel double-arm sand mixer |
| CN209736555U (en) * | 2019-04-22 | 2019-12-06 | 青岛双星智能铸造装备有限公司 | Double-arm continuous sand mixer |
| CN110385396A (en) * | 2019-06-21 | 2019-10-29 | 青岛盛美机械有限公司 | A kind of sand mixer |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200228 |
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| RJ01 | Rejection of invention patent application after publication |