CN110102746B - Core sand removing device by vibrating - Google Patents
Core sand removing device by vibrating Download PDFInfo
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- CN110102746B CN110102746B CN201910431368.6A CN201910431368A CN110102746B CN 110102746 B CN110102746 B CN 110102746B CN 201910431368 A CN201910431368 A CN 201910431368A CN 110102746 B CN110102746 B CN 110102746B
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- hammer
- lifting seat
- vibration
- vibrating
- workpiece
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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
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/001—Removing cores
- B22D29/005—Removing cores by vibrating or hammering
Abstract
The invention relates to a core sand removing device by vibrating, which comprises a lifting seat arranged above a workpiece conveying mechanism and cylinders arranged at two ends of the lifting seat, wherein the two cylinders are fixed through a support, an air hammer is arranged in the middle of the support, a vibrating beam is arranged below the lifting seat, the vibrating beam is arranged on the lifting seat through a damping piece, a hole is formed in the middle of the lifting seat, a hammer head through hole is formed in the middle of the vibrating beam, a hammer handle of the air hammer moves up and down and directly acts on the hammer head, and the cylinder drives the lifting seat to move, so that the hammer handle is at a certain height from the hammer head. The invention has the advantages of effective transmission of the vibration force to the workpiece, good vibration effect, low cost and convenient replacement, and overcomes the problem of non-ideal vibration effect in the prior art.
Description
Technical Field
The application relates to a core sand removing device, in particular to a core sand removing device by vibration.
Background
The cleaning of the core sand of the casting is usually realized by using a pneumatic vibration unit (air hammer) to impact the casting in a high-frequency vibration mode in equipment to loosen and scatter the core sand in the casting.
The existing device for removing core sand by vibration adopts an air hammer as a vibration source to strike a vibration beam, and the vibration beam strikes a casting to achieve the purpose. The method has the advantages of unsatisfactory effect of cleaning residual core sand of the casting and poor equipment reliability, and the service life of parts such as the hammer handle, the hammer head, the vibrating beam and the like can be greatly shortened by simply increasing the size specification and the strength of the pneumatic pick.
Disclosure of Invention
In order to solve the technical problems, the invention provides a vibration beating core sand removing device for removing core sand of a casting industrial casting, and provides an effective solution for solving the problems in production.
The technical scheme of the invention is as follows:
the utility model provides a strike and remove core sand device, is including locating the lift seat of work piece conveying mechanism top, locates the cylinder at lift seat both ends, and two cylinders pass through the support and fix, and the support middle part is equipped with the air hammer, and the lift seat below is equipped with the percussion beam, and the percussion beam passes through the bumper piece and locates on the lift seat, trompil in the middle of the lift seat, and percussion beam middle part is arranged in to the tup clearing hole, and on the hammer handle up-and-down motion of air hammer and direct action were hammered, the cylinder drove the motion of lift seat for the hammer handle formed a take the altitude apart from the tup. The hammer handle of the air hammer strikes the hammer head, the hammer head strikes the vibration beam, and the vibration beam strikes the casting to achieve the purpose of removing core sand of the casting.
The device is driven by the cylinder, can move up and down, and is convenient for processing and feeding and discharging workpieces with different heights. Meanwhile, a certain pre-pressing force is given to the workpiece.
Further, the support comprises a first connecting plate, a second connecting plate, a first supporting column, a second supporting column and a top plate, one end of the first connecting plate and one end of the second connecting plate are arranged on the first air cylinder and the second air cylinder respectively, the other end of the first connecting plate and the other end of the second connecting plate are arranged on the first supporting column and the second supporting column respectively, the top plate is arranged on the first supporting column and the second supporting column, the top of the air hammer is arranged on the top plate, and the hammer handle corresponds to the hammer head in position.
Furthermore, the damping piece comprises a screw, a nut, a damping pad and a spring, the damping beam is movably arranged on the lifting seat through the screw, the damping pad is sleeved on the screw between the lifting seat and the damping beam, and the spring is arranged on the screw between the nut and the lifting seat. The screw can adopt a high-strength screw which is not easy to break, and the nut adopts a locknut which is not easy to loose.
Further, the shock pad is rubber, polyurethane, or a spring.
Further, the air hammer moves up and down by a self-contained air cylinder. The air hammer assembly is provided with an air cylinder, can move up and down, is synchronous with the vibrating beam up and down, and is controlled independently.
Furthermore, the shape of the vibration beam is matched with that of the workpiece, and the vibration beam is straight, arc or special.
And further, the vibrating core sand removing device and the workpiece conveying mechanism are connected with the control device, an induction device is arranged near the conveying mechanism below the vibrating core sand removing device, when the workpiece reaches a vibrating station, the induction device feeds back to the control device, the conveying mechanism stops moving, and the cylinder drives the vibrating beam to downwards contact with the workpiece. The vibration position is ensured, and defective products are prevented.
Further, the vibration frequency is 600-800Hz, so that a certain vibration force is ensured.
The lifting seat is driven by the cylinder and is located at an upper position at ordinary times to ensure that a workpiece passes through, and the cylinder presses downwards during working to drive the bottom plate and the vibrating beam to press the casting downwards to keep the vibrating beam to have certain pressure on the casting. The cylinder guarantees certain rich stroke, even work piece height difference can satisfy the operation requirement.
Compared with the prior art, the invention has the advantages and beneficial effects that:
(1) the high-strength screw for the vibration beam is arranged on the base, the upper part and the lower part of the high-strength screw are provided with the shock absorbing parts, and the vibration beam is in a floating state relative to the mounting base and the equipment support when working, so that vibration force is effectively transmitted to a workpiece, and the vibration effect is good. The problems that the vibration beam with a common structure is rigidly connected with the mounting bottom plate, the vibration force is transmitted to the vibration beam, the base, the cylinder and the equipment support, the vibration force is weakened, and the vibration effect is not ideal are solved.
(2) When the invention works, the vibration beam is in a floating state relative to the mounting base, the vibration force is not easy to be transmitted to other parts of the equipment, the service life of the equipment is obviously prolonged, and the abnormal conditions of welding seam cracking, screw fracture and the like are not easy to occur on the body. The hammer head and the hammer handle have long service life and simple structure. In addition, irregular flash and burrs are often formed in the appearance of a casting blank, the beam is easy to deflect when a common structure is used for vibrating the beam, and the damping pad and the spring of the structure have a self-correcting function.
(3) The pneumatic hammer is improved, the hammer handle does not need to be directly connected with the hammer head, the load is small in the ascending process, only the tail part does not fall off the pneumatic hammer, the design is simple, and the use and the replacement are convenient. The lower part of the hammer head is supported by a vibrating beam, the middle part of the hammer head penetrates through a hole of the bottom plate, and the upper part of the hammer head is contacted with the hammer handle.
Drawings
FIG. 1 is a schematic structural view of a core sand removing device by vibration of the present invention;
FIG. 2 is a schematic diagram of the core sand removing device for vibrating a workpiece to remove core sand;
wherein: 1-air hammer, 2-bracket, 3-cylinder, 4-lifting seat, 5-hammer handle, 6-hammer head, 7-shock pad, 8-spring, 9-vibration beam, 10-casting, 11-maneuvering roller way, 12-locknut and 13-screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of examples of the present invention, and not all examples. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1, the core sand removing device by vibration impact in this embodiment includes a lifting seat 4 disposed above a motorized roller table 11, telescopic cylinders 3 disposed at two ends of the lifting seat 4, the two cylinders 3 are fixed by a support 2, an air hammer 1 is disposed in the middle of the support 2, a vibration impact beam 9 is disposed below the lifting seat 4, the vibration impact beam 9 is disposed on the lifting seat 4 through a shock absorber, a hole is formed in the middle of the lifting seat 4, the hammer head 6 is disposed in the middle of the vibration impact beam 9 through a hole on the lifting seat 4, a hammer handle 5 of the air hammer 1 moves up and down and directly acts on the hammer head 6, the cylinder 3 drives the lifting seat 4 to move, so that a certain distance is formed between the hammer handle 5 and the hammer head 6, a certain pre-pressing force is given to a casting 10, the air hammer handle 5 strikes the hammer head 6, the hammer head 6 strikes the vibration impact beam 9, and the vibration impact the casting 10 to remove core sand of the casting.
The support 2 can be fixed on the current bearing structure apart from motor-driven roller 11 take the altitude, support 2 includes first connecting plate, the second connecting plate, first pillar, second pillar and roof, first cylinder and second cylinder are located respectively to first connecting plate and second connecting plate one end, the first connecting plate and the second connecting plate other end are located respectively to first pillar and second pillar, the roof is located on first pillar and second pillar, 1 top of air hammer is located on the roof, and hammer handle 5 corresponds with 6 positions of tup.
The damping piece includes screw 13, nut 12, shock pad 7 and spring 8, and the suspension beam 9 is located on lift seat 4 through the activity of screw 13, and the cover is equipped with shock pad 7 on the screw 13 between lift seat 4 and the suspension beam 9, is equipped with spring 8 on the screw 13 between nut 12 and the lift seat 4. The screw 13 can be an existing high-strength screw and is not easy to break, and the nut 12 is a locknut and is not easy to loosen. The cushion 7 may be an existing rubber, polyurethane, or spring.
The vibrating core sand removing device and the workpiece conveying mechanism are connected with the control device, an induction device is arranged near the conveying mechanism below the vibrating core sand removing device, when the workpiece reaches a vibrating station, the induction device feeds back to the control device, the conveying mechanism stops moving, and the cylinder drives the vibrating beam to downwards contact with the workpiece. The vibration position is ensured, and defective products are prevented.
The air hammer 1 can move up and down through the self-contained air cylinder, and the vibration frequency is 600-800 Hz. The air hammer assembly is provided with an air cylinder which can move up and down and can move up and down synchronously with the vibrating beam, the air cylinder of the air hammer can also be connected with a control device, and the air cylinder 3 and the air cylinder can be respectively and independently controlled. The vibration frequency is 600-800Hz, so that a certain vibration force is ensured. The shape of the vibration beam 9 is matched with that of the casting 4, and the vibration beam is straight, arc or special.
During the installation, be connected lifter plate 4 and two cylinders 3, can reciprocate, cylinder 3 installs on equipment support 2, and air hammer 1 also installs on support 2, and air hammer lift position is current structure, also has the cylinder function, can independent up-and-down motion. The air hammer handle 5 can be contacted with the hammer head 6, and the hammer head 6 is contacted with the vibration beam 9. The rapping beam 9 is fixed on the lifting plate 4 through a high-strength screw 12 and a locknut 13, a shock pad 7 and a spring 8 are installed in the middle of the rapping beam to be separated, and in the assembling process, the shock pad 7 and the spring 8 are preliminarily pre-tightened to have certain shrinkage. The roller table 11 transports the casting 10 to the working position.
The shock absorption pad can be made of the existing rubber, polyurethane or a spring according to different working conditions. The vibration beam is made of steel, and has certain hardness and toughness after heat treatment.
The using process of the invention is as follows:
as shown in figure 2, during work, the casting 10 is conveyed to the vibration striking station by the maneuvering roller way 11, the sensing device feeds back the sensing device to the control device, the maneuvering roller way 11 stops, the air cylinder 3 descends, the lifting seat 4 and the vibration striking beam 9 press the casting 10, and the air hammer 1 simultaneously presses down, so that the contact of the hammer head 6, the hammer handle 5 and the vibration striking beam 9 is ensured, and a certain pressing force is provided. After the impact beam 9 is in place, the air hammer 1 starts to impact, when the hammer handle 5, the hammer head 6 and the impact beam 9 move downwards, the screw 13 presses downwards along with the impact beam 9, the shock absorption pad 7 at the lower part of the lifting plate 9 expands, and the spring 8 at the upper part is compressed. The hammer head 1 strikes the clearance and contracts, the shock pad 7 compresses, and the spring 8 rebounds and extends out. The position of the impact beam 9 is now vibrating relative to the lifting plate 4, while the lifting plate 4 is stationary relative to the frame 2, so that the impact force is effectively transmitted to the workpiece. Therefore, the inertia moment of the equipment during vibration is greatly reduced, the vibration effect is improved, and the service life of each part of the equipment is prolonged.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a strike core sand removal device which characterized in that: the pneumatic hammer comprises a lifting seat arranged above a workpiece conveying mechanism and cylinders arranged at two ends of the lifting seat, wherein the two cylinders are fixed through a support, an air hammer is arranged in the middle of the support, a vibration beam is arranged below the lifting seat, the vibration beam is arranged on the lifting seat through a damping part, a hole is formed in the middle of the lifting seat, a hammer head through hole is formed in the middle of the vibration beam, a hammer handle of the air hammer moves up and down and directly acts on a hammer head, and the cylinders drive the lifting seat to move so that the hammer handle is at a certain height from the hammer head;
the shock absorption part comprises a screw, a nut, a shock absorption pad and a spring, the vibration beam is movably arranged on the lifting seat through the nut and the screw, the nut is arranged above the lifting seat, the shock absorption pad is sleeved on the screw between the lower part of the lifting seat and the vibration beam, and the spring is arranged on the screw between the upper part of the lifting seat and the nut;
the shock pad is made of rubber, polyurethane or a spring; the vibration frequency is 600-800 Hz;
when the pneumatic hammer works, a workpiece conveying mechanism conveys a casting to a vibration beating station, the sensing device feeds back the casting to the control device, the workpiece conveying mechanism stops, the cylinder descends, the lifting seat and the vibration beating beam press the casting, and the pneumatic hammer presses down simultaneously to ensure that the hammer head, the hammer handle and the vibration beating beam are in contact and have a certain pressing force;
after the vibrating beam is in place, the air hammer starts to vibrate, when the hammer handle, the hammer head and the vibrating beam move downwards, the screw presses downwards along with the vibrating beam, the shock pad at the lower part of the lifting seat expands, and the spring at the upper part is compressed;
the hammerhead striking gap retracts, the shock pad compresses, and the spring rebounds and extends out; at the moment, the position of the vibrating beam is vibrated relative to the lifting seat, the lifting seat is in a static state relative to the bracket, and the vibrating force is effectively transmitted to the workpiece.
2. The rapping cored sand removal device of claim 1, wherein: the support comprises a first connecting plate, a second connecting plate, a first supporting column, a second supporting column and a top plate, one end of the first connecting plate and one end of the second connecting plate are respectively arranged on the first air cylinder and the second air cylinder, the other end of the first connecting plate and the other end of the second connecting plate are respectively arranged on the first supporting column and the second supporting column, the top plate is arranged below the top plate, and the hammer handle corresponds to the hammer head in position.
3. The rapping cored sand removal device of claim 1, wherein: the air hammer moves up and down through the self-contained air cylinder.
4. The rapping cored sand removal device of claim 1, wherein: the shape of the vibration beam is matched with that of the workpiece, and the vibration beam is straight or special.
5. The rapping cored sand removal device of claim 1, wherein: the vibrating core sand removing device and the workpiece conveying mechanism are connected with the control device, an induction device is arranged near the conveying mechanism below the vibrating core sand removing device, when the workpiece reaches a vibrating station, the induction device feeds back to the control device, the conveying mechanism stops moving, and the cylinder drives the vibrating beam to downwards contact with the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431368.6A CN110102746B (en) | 2019-05-22 | 2019-05-22 | Core sand removing device by vibrating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910431368.6A CN110102746B (en) | 2019-05-22 | 2019-05-22 | Core sand removing device by vibrating |
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| Publication Number | Publication Date |
|---|---|
| CN110102746A CN110102746A (en) | 2019-08-09 |
| CN110102746B true CN110102746B (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910431368.6A Active CN110102746B (en) | 2019-05-22 | 2019-05-22 | Core sand removing device by vibrating |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58148073A (en) * | 1982-02-25 | 1983-09-03 | Toyota Motor Corp | Method and device for stripping sand from casting |
| SU1301559A1 (en) * | 1985-02-04 | 1987-04-07 | Специальное Конструкторское Бюро Литейных Автоматических Линий | Extruder for shakeout machine |
| CN201660095U (en) * | 2010-01-29 | 2010-12-01 | 重庆隆鑫机车有限公司 | Flexible suspension structure of engine |
| CN201862767U (en) * | 2010-11-26 | 2011-06-15 | 济南铸造锻压机械研究所有限公司 | Vibrating core breaker |
| CN202779717U (en) * | 2012-08-13 | 2013-03-13 | 浙江万丰科技开发有限公司 | Novel sand casting product shakeout machine |
| CN203356716U (en) * | 2013-06-28 | 2013-12-25 | 武汉钢铁(集团)公司 | Transversely shearing buffer limiter |
| CN203778745U (en) * | 2014-05-07 | 2014-08-20 | 广西玉柴机器股份有限公司 | Vibrating head of sand vibrating machine for cleaning cylinder cover |
| CN205519597U (en) * | 2016-04-28 | 2016-08-31 | 无锡市华铸机械工业有限公司 | Vibrations coring device |
| CN108838341A (en) * | 2018-05-30 | 2018-11-20 | 滁州市锴模装备模具制造有限公司 | A kind of refrigerator water receiver mold |
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2019
- 2019-05-22 CN CN201910431368.6A patent/CN110102746B/en active Active
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