CN210676829U - Core box structure for preparing large U-shaped resin sand core - Google Patents
Core box structure for preparing large U-shaped resin sand core Download PDFInfo
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- CN210676829U CN210676829U CN201921321078.8U CN201921321078U CN210676829U CN 210676829 U CN210676829 U CN 210676829U CN 201921321078 U CN201921321078 U CN 201921321078U CN 210676829 U CN210676829 U CN 210676829U
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Abstract
The utility model discloses a core box structure for preparing a large U-shaped resin sand core, which comprises a core box base, an upper core box main body and a lower core box main body, wherein the core box base is provided with a lifting mechanism, and the upper end of the lifting mechanism is fixed at the gravity center position of the lower core box main body and is used for driving the lower core box main body to move up and down; the core box base is provided with four guide mechanisms, four limiting mechanisms and a plurality of core ejecting mechanisms, and the guide mechanisms are connected with the lower core box main body in a sliding way and mainly play a role in guiding the lower core box main body to move up and down relative to the core box base under the driving of the lifting mechanism; the upper end of the limiting mechanism is fixedly connected with the lower core box main body and is used for positioning a core box at two stations of sand filling and core lifting; the core ejecting mechanism is used for separating the sand core from the core box, so that the sand core is convenient to take out; go up core box main part and core box main part down and pass through three locating pin location and link together, go up core box main part and be provided with a plurality of sand filling mouths. The utility model is simple in operation, mould long service life is a reliable core box structure of preparing large-scale U molding sand core, can improve psammitolite surface quality.
Description
Technical Field
The utility model belongs to the technical field of resin sand core box structure, concretely relates to core box structure of large-scale U type resin sand psammitolite of preparation.
Background
The core box of the large U-shaped resin sand core is mainly designed by adopting a core box main body, a plurality of loose blocks are arranged around the core box main body, and a core box structure formed by filling a sand surface on the upper part is low in mould cost, but has the defects of difficult operation, easy damage to the mould, difficult core lifting, easy deformation and breakage of the sand core, uneven sand filling surface, poor sand core quality, high labor intensity of workers and low production efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a core box structure of large-scale U type resin sand psammitolite of preparation to solve the problem that proposes among the above-mentioned background art. The utility model provides a pair of core box structure of large-scale U type resin sand psammitolite of preparation has easy operation, long service life, psammitolite non-deformable, characteristics that the psammitolite quality is high.
In order to achieve the above object, the utility model provides a following technical scheme: a core box structure for preparing a large U-shaped resin sand core comprises a core box base, an upper core box main body and a lower core box main body, wherein a lifting mechanism is arranged on the core box base, and the upper end of the lifting mechanism is fixed at the gravity center position of the lower core box main body and is used for driving the lower core box main body to move up and down; the core box base is provided with four guide mechanisms, four limiting mechanisms and a plurality of core ejecting mechanisms, and the guide mechanisms are connected with the lower core box main body in a sliding manner and mainly play a role in guiding the lower core box main body to move up and down relative to the core box base under the driving of the lifting mechanism; the upper end of the limiting mechanism is fixedly connected with the lower core box main body and is used for positioning a core box at two stations of sand filling and core lifting; the core ejecting mechanism is used for separating the sand core from the core box, so that the sand core is convenient to take out; go up core box main part and core box main part down and pass through three locating pin location and link together, it is provided with a plurality of sand filling openings to go up core box main part.
Preferably, the core box base is made of a cast iron plate with the mark of HT250, the thickness of the core box base is 280mm, the core box base has high strength and excellent wear resistance, heat resistance and shock absorption, and the phenomenon that the core box is difficult to lift due to deformation of the core box base can be effectively prevented.
Preferably, the upper core box main body and the lower core box main body are designed into a U-shaped structure along with the shape of the sand core, are made of ZL104 high-strength aluminum alloy, have the performance characteristics of no hot cracking tendency, high air tightness and small linear shrinkage, and are light and durable.
Preferably, the lifting mechanism is a lifting cylinder, the lower end of the cylinder body of the lifting cylinder is fixed in a groove formed above the core box base, and the upper end of a lifting rod of the lifting cylinder is fixedly connected to the gravity center position of the lower core box main body.
Preferably, each guide mechanism comprises a guide rod, the lower end of each guide rod is fixedly connected to the core box base, and the upper end of each guide rod is in sliding connection with a linear bearing arranged on the lower core box main body; the four guide mechanisms are distributed on four supporting points a, b, c and d of the lower core box main body.
Preferably, each limiting mechanism comprises a limiting rod, a fixed base, a limiting cylinder and a cylinder base, the fixed base is fixedly connected to the core box base, a limiting hole is formed in the center of a top plate of the fixed base, a limiting sliding groove is formed in the top plate of the fixed base in the transverse direction, the limiting hole is perpendicular to the limiting sliding groove and is communicated with the limiting sliding groove, the lower end of the limiting rod is connected with the limiting hole in a sliding mode, and the upper end of the limiting rod is fixedly connected with the lower core box main body; the core box is characterized in that a cylinder base fixed on the core box base is arranged on one side of the fixed base at intervals, a limiting cylinder is installed on the cylinder base, one end of a movable telescopic rod of the limiting cylinder is connected with a limiting block through a connecting pin rod, and the limiting block can be driven by the limiting cylinder to do telescopic motion in a limiting sliding groove.
Preferably, each core ejecting mechanism comprises a core ejecting rod and a pressing block, the pressing block is fixed on the core box base, the lower end of the core ejecting rod is connected with the pressing block in a matching mode, the upper end of the core ejecting rod extends into a core ejecting hole formed in the lower core box main body, and the pressing block is provided with a notch which is convenient for quick installation and replacement of the core ejecting rod.
Preferably, the lower core box main body is provided with three positioning pins in a distributed manner, the positioning pins correspond to the positioning holes formed in the upper core box main body, the upper core box main body and the lower core box main body are buckled together when the lower core box main body is used, so that a closed core box inner cavity is formed, and sand is filled into the core box inner cavity through the sand filling port.
Preferably, the sand filling opening is further provided with a scraper for scraping off excess resin sand at the sand filling opening and a pressing plate for compacting the filled resin sand.
Compared with the prior art, the beneficial effects of the utility model are that:
through adopting the technical scheme, the utility model provides an among the prior art resin sand core box mould operation difficulty, easy damage, the technical problem that the sand-packed quality is low. The utility model is simple in operation, mould long service life is a reliable core box structure of preparing large-scale U molding sand core, can improve psammitolite surface quality.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the embodiment of the present invention with the upper core box body removed.
Fig. 3 is a schematic structural diagram of a limiting mechanism according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of an inner cavity of a core box according to an embodiment of the present invention.
In the figure: 1-core box base, 2-upper core box main body, 3-lower core box main body, 4-lifting mechanism, 5-guide mechanism, 51-guide rod, 52-linear bearing, 6-limit mechanism, 61-limit rod, 62-fixed base, 63-limit cylinder, 64-cylinder base, 65-limit hole, 66-limit chute, 67-limit block, 7-core ejecting mechanism, 71-core ejecting rod, 72-pressing block, 8-sand filling port, 9-square groove, 10-positioning pin, 11-core box inner cavity, 12-scraping plate and 13-pressing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides the following technical solutions: a core box structure for preparing a large U-shaped resin sand core comprises a core box base 1, an upper core box main body 2 and a lower core box main body 3, wherein a lifting mechanism 4 is arranged on the core box base 1, the upper end of the lifting mechanism 4 is fixed at the gravity center position of the lower core box main body 3 and is used for driving the lower core box main body 3 to move up and down, four guide mechanisms 5, four limiting mechanisms 6 and a plurality of core ejecting mechanisms 7 are arranged on the core box base 1, the guide mechanisms 5 are in sliding connection with the lower core box main body 3 and mainly play a role in guiding the lower core box main body 3 to move up and down relative to the core box base 1 under the driving of the lifting mechanism 4, the upper end of each limiting mechanism 6 is fixedly connected with the lower core box main body 3 and is used for positioning the core box at two stations of sand filling and core lifting, the core ejecting mechanisms 7 are used for separating the sand core from the core box so as, the upper core box main body 2 is provided with a plurality of sand filling ports 8. In order to effectively prevent the core box base 1 from being difficult to lift due to the deformation of the core box base 1, in the embodiment, the preferred core box base is made of an HT250 type cast iron plate with high strength, excellent wear resistance, excellent heat resistance and excellent shock absorption, and the thickness of the core box base is 280 mm. In order to make the core box main body light and durable, in the present embodiment, the preferable upper core box main body 2 and the lower core box main body 3 are designed to be U-shaped structures, and are made of ZL104 type high-strength aluminum alloy having performance characteristics of no hot cracking tendency, high air tightness and small wire shrinkage. In order to make the core box main body move up and down conveniently and freely, in the embodiment, the preferable lifting mechanism 4 is a lifting cylinder, the lower end of the cylinder body of the lifting cylinder is fixed in the upper groove 9 of the core box base 1, and the upper end of a lifting rod of the lifting cylinder is fixedly connected with the gravity center position of the lower core box main body 3. In order to prevent the core box main body from shifting in the lifting process to cause dislocation of the sand core, in this embodiment, each preferable guide mechanism 5 includes a guide rod 51, the lower end of the guide rod 51 is fixedly connected to the core box base 1, and the upper end of the guide rod 51 is slidably connected to a linear bearing 52 arranged on the lower core box main body 3; the four guide mechanisms 5 are distributed on four supporting points a, b, c and d of the lower core box main body 3. In order to facilitate core box positioning at two stations of sand filling and core lifting, in this embodiment, each preferable limiting mechanism 6 includes a limiting rod 61, a fixed base 62, a limiting cylinder 63 and a cylinder base 64, the fixed base 62 is fixedly connected to the core box base 1, a limiting hole 65 is formed in the center of the top plate of the fixed base 62, a limiting chute 66 is formed in the top plate of the fixed base 62 in the transverse direction, the limiting hole 65 is perpendicular to and communicated with the limiting chute 66, the lower end of the limiting rod 61 is slidably connected with the limiting hole 65, and the upper end of the limiting rod 61 is fixedly connected with the lower core box main body 3; one side interval of unable adjustment base 1 is provided with the cylinder base 64 of fixing on core box base 1, install spacing cylinder 63 on the cylinder base 64, spacing cylinder 63's activity telescopic link one end is passed through the connecting pin pole and is connected stopper 67, stopper 67 can be telescopic motion in spacing spout 66 under the drive of spacing cylinder 63. In order to realize the separation of the sand core from the core box and facilitate the removal of the sand core, in this embodiment, each preferable core ejecting mechanism 7 includes a core ejecting rod 71 and a pressing block 72, the pressing block 72 is fixed on the core box base 1, the lower end of the core ejecting rod 71 is connected with the pressing block 72 in a matching manner, the upper end of the core ejecting rod 71 extends into a core ejecting hole formed in the lower core box main body 3, and the pressing block 72 is provided with a notch to facilitate the quick installation and replacement of the core ejecting rod 71. In order to firmly fasten the upper core box main body and the lower core box main body together to form a core box inner cavity for filling sand, in this embodiment, three positioning pins 10 are preferably distributed on the lower core box main body 3, the positions of the positioning pins 10 correspond to the positioning holes arranged on the upper core box main body 2, and when the core box is used, the upper core box main body 2 and the lower core box main body 3 are fastened together to form a closed core box inner cavity 11, and sand is filled into the core box inner cavity 11 through the sand filling port 8. In order to prevent the waste of the resin sand and ensure the quality of the sand core, in the embodiment, the preferable sand filling port is further provided with a scraper 12 and a pressing plate 13, wherein the scraper 12 is used for scraping off the excess resin sand at the sand filling port 8, and the pressing plate 13 is used for compacting the filled resin sand.
The utility model discloses a theory of operation and use flow: the utility model discloses elevating system 4 drives core box main part 3 down and rises during the core making, and gag lever post 61 rises simultaneously, and stopper 67 stretches out, prescribes a limit to the gag lever post 6 at the core making station, goes up core box main part 2 and puts down core box main part 3 through locating pin 10 on, fills up through filling up sand mouth 8, will go up core box main part 2 and core box inner chamber 11 that core box main part 3 combination formed down and fill up, scrapes away the unnecessary resin sand of filling up sand mouth 8 department with scraper blade 12, and reuse clamp plate 13 is compacted. When the core is started, the limiting block 67 is withdrawn, the lower core box main body 3 is driven by the lifting mechanism 4 to descend, the limiting rod 61 descends at the same time, and the core ejecting rod 17 and the sand core are not moved, so that the core box and the sand core are separated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A core box structure for preparing a large U-shaped resin sand core comprises a core box base, an upper core box main body and a lower core box main body, and is characterized in that a lifting mechanism is arranged on the core box base, and the upper end of the lifting mechanism is fixed at the gravity center position of the lower core box main body and is used for driving the lower core box main body to move up and down; the core box base is provided with four guide mechanisms, four limiting mechanisms and a plurality of core ejecting mechanisms, and the guide mechanisms are connected with the lower core box main body in a sliding manner and mainly play a role in guiding the lower core box main body to move up and down relative to the core box base under the driving of the lifting mechanism; the upper end of the limiting mechanism is fixedly connected with the lower core box main body and is used for positioning a core box at two stations of sand filling and core lifting; the core ejecting mechanism is used for separating the sand core from the core box, so that the sand core is convenient to take out; go up core box main part and core box main part down and pass through three locating pin location and link together, it is provided with a plurality of sand filling openings to go up core box main part.
2. The core box structure for preparing the large U-shaped resin sand core as claimed in claim 1, wherein the core box base is made of a cast iron plate with the mark of HT250, the thickness of the core box base is 280mm, the core box base has high strength characteristic and excellent wear resistance, heat resistance and shock absorption, and the phenomenon that the core box is difficult to lift due to the deformation of the core box base can be effectively prevented.
3. The core box structure for preparing a large-scale U-shaped resin sand core as claimed in claim 1, wherein the upper core box main body and the lower core box main body are designed into a U-shaped structure along with the shape of the sand core, are made of high-strength aluminum alloy with the brand number of ZL104, have the performance characteristics of no hot cracking tendency, high air tightness and small linear shrinkage, and are light and durable.
4. The core box structure for preparing the large U-shaped resin sand core as claimed in claim 1, wherein the lifting mechanism is a lifting cylinder, the lower end of the cylinder body of the lifting cylinder is fixed in the groove above the base of the core box, and the upper end of the lifting rod of the lifting cylinder is fixedly connected with the gravity center of the lower core box body.
5. The core box structure for preparing the large U-shaped resin sand core as claimed in claim 1, wherein each guide mechanism comprises a guide rod, the lower end of the guide rod is fixedly connected to the base of the core box, and the upper end of the guide rod is slidably connected with a linear bearing arranged on the lower core box main body; the four guide mechanisms are distributed on four supporting points a, b, c and d of the lower core box main body.
6. The core box structure for preparing the large-scale U-shaped resin sand core as claimed in claim 1, wherein each limiting mechanism comprises a limiting rod, a fixed base, a limiting cylinder and a cylinder base, the fixed base is fixedly connected to the core box base, a limiting hole is formed in the center of the top plate of the fixed base, a limiting sliding groove is formed in the top plate of the fixed base in the transverse direction, the limiting hole is perpendicular to the limiting sliding groove and is communicated with the limiting sliding groove, the lower end of the limiting rod is slidably connected with the limiting hole, and the upper end of the limiting rod is fixedly connected with the lower core box main body; the core box is characterized in that a cylinder base fixed on the core box base is arranged on one side of the fixed base at intervals, a limiting cylinder is installed on the cylinder base, one end of a movable telescopic rod of the limiting cylinder is connected with a limiting block through a connecting pin rod, and the limiting block can be driven by the limiting cylinder to do telescopic motion in a limiting sliding groove.
7. The core box structure for preparing the large-scale U-shaped resin sand core as claimed in claim 1, wherein each core ejecting mechanism comprises a core ejecting rod and a pressing block, the pressing block is fixed on a base of the core box, the lower end of the core ejecting rod is in fit connection with the pressing block, the upper end of the core ejecting rod extends into a core ejecting hole arranged on the lower core box main body, and the pressing block is provided with a notch for facilitating quick installation and replacement of the core ejecting rod.
8. The core box structure for preparing the large U-shaped resin sand core as claimed in claim 1, wherein the lower core box body is provided with three positioning pins distributed therein, the positioning pins are positioned to correspond to the positioning holes of the upper core box body, and the upper core box body and the lower core box body are fastened together in use to form a closed core box cavity, and sand is filled into the core box cavity through a sand filling port.
9. The core box structure for manufacturing a large U-type resin sand core as claimed in claim 1, wherein said sand-filling opening is further provided with a scraper for scraping off excess resin sand from the sand-filling opening and a pressing plate for compacting the filled resin sand.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921321078.8U CN210676829U (en) | 2019-08-14 | 2019-08-14 | Core box structure for preparing large U-shaped resin sand core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921321078.8U CN210676829U (en) | 2019-08-14 | 2019-08-14 | Core box structure for preparing large U-shaped resin sand core |
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| CN210676829U true CN210676829U (en) | 2020-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110496940A (en) * | 2019-08-14 | 2019-11-26 | 聊城新泺机械有限公司 | A kind of core box structure preparing large-scale U-shaped resin sand sand core |
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- 2019-08-14 CN CN201921321078.8U patent/CN210676829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110496940A (en) * | 2019-08-14 | 2019-11-26 | 聊城新泺机械有限公司 | A kind of core box structure preparing large-scale U-shaped resin sand sand core |
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