CN110696307A - Oil outlet structure for mold demolding - Google Patents
Oil outlet structure for mold demolding Download PDFInfo
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- CN110696307A CN110696307A CN201910990331.7A CN201910990331A CN110696307A CN 110696307 A CN110696307 A CN 110696307A CN 201910990331 A CN201910990331 A CN 201910990331A CN 110696307 A CN110696307 A CN 110696307A
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- hole
- holes
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- groove
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
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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
- B22D29/04—Handling or stripping castings or ingots
- B22D29/06—Strippers actuated by fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an oil outlet structure for demoulding a mould, which is characterized in that a first guide pipe and a second guide pipe are connected with an oil pipeline, the first guide pipe and the second guide pipe can convey demoulding oil to the inside of a first groove and a second groove, the oil in the first groove and the second groove can be conveyed to the inside of a first through hole and a second through hole through a first guide hole and a second guide hole, when the oil pressure in the first through hole and the second through hole is increased, the first sealing plate and the second sealing plate can be jacked up by the oil pressure, when the first sealing plate and the second sealing plate are separated from the through holes, the oil can be conveyed to the inside of a mould cavity from the inside of the through holes, manual oiling is not needed, the oiling efficiency is improved, the oiling is safer during the oiling, the sealing plate seals the through holes under the tension action of a tension spring during the pouring, the produced finished products are better, and meanwhile, the first guide pipe and the second guide pipe can be connected with an air pipe during demoulding, when the through hole is ejected out of the sealing plate by gas, the demolding can be quickly carried out.
Description
The technical field is as follows:
the invention belongs to the technical field of mold demoulding, and particularly relates to an oil outlet structure for mould demoulding.
Background art:
in the use process of the die, due to the large amount or the complex modeling of part of the part, when the die is demolded, the die is easily damaged, such as die cracking, so that the die needs to be regularly oiled and demolded, the smooth production is ensured, and the demolding is also convenient. In the prior art, before production, the inner wall of a mold to be used is coated with oil, usually, the inner wall is manually brushed with oil by a brush or a long roller, so that the manual operation is time-consuming and labor-consuming and low in efficiency, in addition, in the production process, the oil is sometimes required to be manually put into a mold cavity, so that safety risks exist, on the other hand, in the demolding process, the demolding is mostly carried out by adopting a mode of ejecting a finished product by ventilation, for example, the method is described in CN110196179A in the prior patent technical literature.
In addition, although the oil path and the air path in the prior demoulding structure are independently arranged, if the forming and curing time of the grinding tool is longer, the demoulded oil body needs to stay in the oil guide pipeline for a long time, so that part of the oil body can not be kept in the pipeline for a long time after the oil is injected into the oil channel, and if the mould is complex in shape and large in fall, and particularly the maximum bulge position is close to the middle part of the mould, the traditional tiled oil injection method often causes excessive oil injection on one side, the other side is not stained with oil, even one side is not covered by the demoulding oil completely, in addition, in the traditional final air pressure demoulding process, only the air pressure thrust is used for demoulding, when the grinding tool is inclined, the demolding oil is easy to deflect and gather accidentally due to other impacts, so that different parts of the to-be-demolded grinding tool are different in demolding difficulty degree, and accordingly, the mold is difficult to demold.
The invention content is as follows:
the present invention is directed to solving the above problems and to providing an oil discharging structure for mold release, which solves the drawbacks of the prior art.
In order to solve the above problems, the present invention provides a technical solution:
the utility model provides a mould drawing of patterns is with structure that produces oil, includes bed die, first subassembly, goes up mould, second subassembly and the pressfitting subassembly that produces oil, the bed die sets up the below at last mould, the inside of bed die is provided with first subassembly that produces oil, the inside of going up the mould is provided with second subassembly that produces oil, the pressfitting subassembly sets up the top at last mould.
The lower die comprises a lower die base, a lower die core, a wing lug, a first limiting hole, a lower die cavity, a sealing hoop, a first through hole and a second through hole, the lower die core is fixedly connected with the top of the lower die base, the wing lug is fixedly connected with the lower die core on the peripheral side wall, the first limiting hole is formed in the top of the wing lug, the lower die cavity is formed in the top of the lower die core, the first through hole is formed in the four corners of the bottom of the lower die cavity, and the second through hole is formed in the four corners of the bottom of the lower die core corresponding to the first through hole.
The first oil outlet assembly comprises a first guide pipe, a first groove, first guide holes, a first slide rod, a first seal plate, a first tension spring and a first limiting plate, one end of the first guide pipe is inserted in the lower die base, the first guide pipe is communicated with the first groove, the first groove is formed in the side wall of the lower die core close to one side of the lower die base, the first guide holes are formed in the four corners of the first groove, the other ends of the four first guide holes are communicated with a first through hole, the first slide rod is arranged in the first through hole, the top of the first slide rod is fixedly connected with the first seal plate, the first seal plate is slidably connected in the first through hole, the bottom of the first seal plate is fixedly connected with the first tension spring, the other end of the first tension spring is fixedly connected with the inner bottom of the first through hole, and the first through hole is sleeved on the rod wall of the first slide rod, the one end that first shrouding was kept away from to first slide bar passes first through-hole and extends to the inside of second through-hole, first slide bar extends to the inside first limiting plate of one end fixedly connected with of second through-hole.
Go up the mould by last mould base, go up the mould core, the spacing hole of second, go up die cavity, spacing slot, third through-hole and fourth through-hole and constitute, go up the mould core of the bottom fixedly connected with of mould base, the spacing hole of second has all been seted up to the four corners department at last mould base top, the spacing hole of second sets up with first spacing hole phase-match, go up the bottom of mould core and seted up the mould cavity, the four corners department at last die cavity top has all seted up the third through-hole, the four corners department at last mould core top has all corresponded the third through-hole and has seted up the fourth through-hole.
The second oil outlet assembly comprises a second guide pipe, a second groove, a second guide hole, a second slide rod, a second seal plate, a second tension spring and a second limiting plate, one end of the second guide pipe is inserted into the upper die base, the second guide pipe is communicated with the second groove, the second groove is formed in the side wall of the upper die core, which is close to one side of the upper die base, the second guide hole is formed in the four corners of the second groove, the other ends of the four second guide holes are communicated with a third through hole, the second slide rod is arranged in the third through hole, the second seal plate is fixedly connected to the top of the second slide rod, the second seal plate is slidably connected to the inside of the third through hole, the second tension spring is fixedly connected to the bottom of the second seal plate, the other end of the second tension spring is fixedly connected to the inner bottom of the third through hole, and the third through hole is sleeved on the rod wall of the second slide rod, the one end that the second shrouding was kept away from to the second slide bar passes the inside that the third through-hole extended to the fourth through-hole, the one end fixedly connected with second limiting plate that the second slide bar extended to the fourth through-hole is inside.
The arranged first guide pipe and the second guide pipe are connected with a gas transmission pipeline, demoulding gas can be conveyed into the first groove and the second groove by the first guide pipe and the second guide pipe, the gas in the first groove and the second groove can be conveyed into the first through hole and the third through hole through the first guide hole and the second guide hole, when the gas pressure in the first through hole and the third through hole is increased, the gas pressure can jack the first sealing plate and the second sealing plate, when the first sealing plate and the second sealing plate are separated from the through holes, the gas can be conveyed into the die cavity from the inside of the through holes, and when the gas pushes the sealing plates out of the through holes, demoulding can be rapidly carried out; in the oil injection stage before pouring, oil injection is performed sequentially according to a diagonal injection mode, namely two adjacent third through holes in the four corners of the top of the upper mold core and two adjacent first through holes in the four corners of the bottom of the lower mold core are injected simultaneously, wherein a connecting line between two selected third through holes and a connecting line between the two first through holes are coplanar and inclined to the ground at a non-90-degree angle, then the remaining four through holes are injected simultaneously, when the air is filled before demolding, a small amount of oil bodies are injected into all the first through holes and the third through holes simultaneously, and the first through holes and the third through holes can be connected with the first grooves and the second grooves through a multi-channel solenoid valve;
the first spacing slider of equal fixedly connected with on the siding of first limiting plate both sides, all correspond first spacing slider on the inner wall of second through-hole and seted up first spacing spout, first spacing spout sets up with first spacing slider phase-match, just first spacing slider sliding connection is in the inside of first spacing spout, equal fixedly connected with second spacing slider on the siding of second limiting plate both sides, all correspond second spacing slider on the inner wall of second through-hole and seted up the spacing spout of second, the spacing spout of second sets up with the spacing slider phase-match of second, just the spacing slider sliding connection of second is in the inside of the spacing spout of second.
The equal fixedly connected with gag lever post in four corners department at lower mold core top, the four corners department of going up the die cavity bottom all corresponds the gag lever post and has seted up spacing slot, spacing slot sets up with the gag lever post phase-match, just the gag lever post is pegged graft in the inside of spacing slot, equal fixedly connected with second spacing slider on the siding of second limiting plate both sides, all correspond second spacing slider on the inner wall of second through-hole and seted up the spacing spout of second, the spacing spout of second sets up with the spacing slider phase-match of second, just the inside at the spacing spout of second spacing slider sliding connection.
The pressing assembly is composed of a supporting plate, an oil cylinder, a pressing plate and an inserting rod, the oil cylinder is fixedly connected to the top of the supporting plate, the telescopic end of the oil cylinder penetrates through the supporting plate, the pressing plate is fixedly connected to the end, penetrating through the supporting plate, of the telescopic end of the oil cylinder, and the inserting rod is fixedly connected to the four corners of the bottom of the pressing plate.
Preferably, the top of the lower mold core is fixedly connected with a sealing hoop, the bottom of the upper mold core is provided with a sealing groove corresponding to the sealing hoop, and the sealing groove is matched with the sealing hoop.
Preferably, the first limiting slide blocks are fixedly connected to the plate walls of the two sides of the first limiting plate, the inner wall of the second through hole is provided with first limiting slide grooves corresponding to the first limiting slide blocks, the first limiting slide grooves are matched with the first limiting slide blocks, and the first limiting slide blocks are slidably connected inside the first limiting slide grooves.
Preferably, one end of the inserted bar, which is far away from the pressing plate, sequentially penetrates through the second limiting hole and the first limiting hole, and the inserted bar, the second limiting hole and the first limiting hole are in sliding connection.
The invention has the beneficial effects that:
1. aiming at the structural demoulding of the complex special-shaped body, the synchronous and smooth operation of each part can be realized through the specific injection logic in the direction of a plurality of through holes; 2. the oil way and the air way can be shared, so that the injection is efficient, the problem that oil bodies are retained by the pipeline is solved, and the oil bodies can be ensured to uniformly contact each demoulded workpiece part during demoulding; 3. the oil outlet structure for demoulding the mould is characterized in that a first guide pipe and a second guide pipe are connected with an oil pipeline, the first guide pipe and the second guide pipe can convey demoulding oil to the inside of a first groove and a second groove, the oil in the first groove and the second groove can be conveyed to the inside of a first through hole and a second through hole through a first guide hole and a second guide hole, when the oil pressure in the first through hole and the second through hole is increased, the first sealing plate and the second sealing plate can be jacked up by the oil pressure, when the first sealing plate and the second sealing plate are separated from the through holes, the oil can be conveyed to the inside of a mould cavity from the inside of the through holes, manual oiling is not needed, the oiling efficiency is improved, the oiling is safer during the oiling, the through holes are sealed by the sealing plates under the tensile force of a tension spring during pouring, the produced finished products are better, and the first guide pipe and the second guide pipe can be connected with an air pipe during demoulding, when the through hole is ejected out of the sealing plate by gas, the demolding can be quickly carried out.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic structural view of a lower mold according to the present invention;
FIG. 4 is a schematic structural view of an upper mold of the present invention;
FIG. 5 is a partial enlarged view of portion A of the present invention;
fig. 6 is a partially enlarged view of a portion B in the present invention.
In the figure: 1. a lower die; 11. a lower die base; 12. a lower mold core; 13. a tab ear; 14. a first limit hole; 15. a lower die cavity; 16. a limiting rod; 17. a sealing band; 18. a first through hole; 19. a second through hole; 2. a first oil outlet assembly; 21. a first conduit; 22. a first groove; 23. a first guide hole; 24. a first slide bar; 25. a first seal plate; 26. a first tension spring; 27. a first limit plate; 28. a first limit slide block; 29. a first limiting chute; 3. an upper die; 31. an upper die base; 32. an upper mold core; 33. a second limiting hole; 34. an upper mold cavity; 35. limiting slots; 36. a sealing groove; 37. a third through hole; 38. a fourth via hole; 4. a second oil outlet assembly; 41. a second conduit; 42. a second groove; 43. a second guide hole; 44. a second slide bar; 45. a second seal plate; 46. a second tension spring; 47. a second limiting plate; 48. a second limit slide block; 49. a second limiting chute; 5. pressing the components; 51. a support plate; 52. an oil cylinder; 53. pressing a plate; 54. and (4) inserting the rod.
The specific implementation mode is as follows:
example 1: as shown in fig. 1 to 6, the following technical solutions are adopted in the present embodiment: an oil outlet structure for mold demolding comprises a lower mold 1, a first oil outlet assembly 2, an upper mold 3, a second oil outlet assembly 4 and a pressing assembly 5, wherein the lower mold 1 is arranged below the upper mold 3, the first oil outlet assembly 2 is arranged inside the lower mold 1, the second oil outlet assembly 4 is arranged inside the upper mold 3, and the pressing assembly 5 is arranged above the upper mold 3;
the lower die 1 comprises a lower die base 11, a lower die core 12, a wing lug 13, a first limiting hole 14, a lower die cavity 15, a sealing hoop 17, a first through hole 18 and a second through hole 19, wherein the top of the lower die base 11 is fixedly connected with the lower die core 12, the wing lugs 13 are fixedly connected to the peripheral side walls of the lower die core 12, the top of each wing lug 13 is provided with the first limiting hole 14, the top of the lower die core 12 is provided with the lower die cavity 15, the four corners of the bottom in the lower die cavity 15 are provided with the first through holes 18, and the four corners of the bottom of the lower die core 12 are provided with the second through holes 19 corresponding to the first through holes 18;
the first oil outlet assembly 2 comprises a first guide pipe 21, a first groove 22, a first guide hole 23, a first slide bar 24, a first seal plate 25, a first tension spring 26 and a first limit plate 27, wherein one end of the first guide pipe 21 is inserted into the lower die base 11, the first guide pipe 21 is communicated with the first groove 22, the first groove 22 is formed in the side wall of the lower die core 12 close to one side of the lower die base 11, the four corners of the first groove 22 are respectively provided with the first guide hole 23, the other ends of the four first guide holes 23 are communicated with the first through hole 18, the first slide bar 24 is arranged in the first through hole 18, the top of the first slide bar 24 is fixedly connected with the first seal plate 25, the first seal plate 25 is slidably connected in the first through hole 18, the bottom of the first seal plate 25 is fixedly connected with the first tension spring 26, and the other end of the first tension spring 26 is fixedly connected with the inner bottom of the first through hole 18, the first through hole 18 is sleeved on the rod wall of the first sliding rod 24, one end of the first sliding rod 24, which is far away from the first sealing plate 25, passes through the first through hole 18 and extends into the second through hole 19, and one end of the first sliding rod 24, which extends into the second through hole 19, is fixedly connected with a first limiting plate 27;
the upper die 3 comprises an upper die base 31, an upper die core 32, a second limiting hole 33, an upper die cavity 34, a limiting slot 35, a third through hole 37 and a fourth through hole 38, wherein the bottom of the upper die base 31 is fixedly connected with the upper die core 32, the second limiting hole 33 is formed in each of four corners of the top of the upper die base 31, the second limiting hole 33 is matched with the first limiting hole 14, the upper die cavity 34 is formed in the bottom of the upper die core 32, the third through holes 37 are formed in each of the four corners of the top in the upper die cavity 34, and the fourth through hole 38 is formed in each of the four corners of the top of the upper die core 32 corresponding to the third through hole 37;
the second oil outlet assembly 4 is composed of a second conduit 41, a second groove 42, a second guide hole 43, a second slide rod 44, a second seal plate 45, a second tension spring 46 and a second limit plate 47, wherein one end of the second conduit 41 is inserted into the upper mold base 31, the second conduit 41 is communicated with the second groove 42, the second groove 42 is formed on the side wall of the upper mold core 32 close to the upper mold base 31, the four corners of the second groove 42 are respectively provided with the second guide hole 43, the other ends of the four second guide holes 43 are communicated with a third through hole 37, the second slide rod 44 is arranged in the third through hole 37, the top of the second slide rod 44 is fixedly connected with the second seal plate 45, the second seal plate 45 is slidably connected in the third through hole 37, the bottom of the second seal plate 45 is fixedly connected with the second spring 46, and the other end of the second tension spring 46 is fixedly connected with the inner bottom of the third through hole 37, the third through hole 37 is sleeved on the rod wall of the second sliding rod 44, one end of the second sliding rod 44, which is far away from the second sealing plate 45, passes through the third through hole 37 and extends into the fourth through hole 38, and one end of the second sliding rod 44, which extends into the fourth through hole 38, is fixedly connected with a second limiting plate 47;
the arranged first guide pipe 21 and the second guide pipe 41 are connected with a gas transmission pipeline, the first guide pipe 21 and the second guide pipe 41 can convey demolding gas to the inside of the first groove 22 and the second groove 42, the gas inside the first groove 22 and the second groove 42 can be conveyed to the inside of the first through hole 18 and the third through hole 37 through the first guide hole 23 and the second guide hole 43, when the gas pressure inside the first through hole 18 and the third through hole 37 is increased, the gas pressure can jack up the first sealing plate 25 and the second sealing plate 45, when the first sealing plate 25 and the second sealing plate 45 are separated from the through holes, the gas can be conveyed to the inside of the mold cavity from the inside of the through holes, and when the gas pushes the sealing plates out of the through holes, demolding can be rapidly carried out; in the oil injection stage before pouring, oil injection is sequentially performed according to a diagonal injection mode, namely two adjacent third through holes 37 in four corners of the top of the upper mold core 32 and two adjacent first through holes 18 in four corners of the bottom of the lower mold core 12 are simultaneously injected, wherein a connecting line between two selected third through holes 37 and a connecting line between two first through holes 18 are coplanar and the plane is inclined to the ground by non-90 degrees, then the remaining four through holes are simultaneously injected, when the air inflation is performed before demolding, a small amount of oil bodies are simultaneously injected into all the first through holes 18 and the third through holes 37, and the first through holes 18 and the third through holes 37 can be connected with the first groove 22 and the second groove 42 through a multi-channel solenoid valve;
The press-fit assembly 5 is composed of a supporting plate 51, an oil cylinder 52, a pressing plate 53 and an inserting rod 54, wherein the oil cylinder 52 is fixedly connected to the top of the supporting plate 51, the telescopic end of the oil cylinder 52 penetrates through the supporting plate 51, the pressing plate 53 is fixedly connected to the telescopic end of the oil cylinder 52 penetrating through one end of the supporting plate 51, and the inserting rod 54 is fixedly connected to four corners of the bottom of the pressing plate 53.
The four corners at the top of the lower mold core 12 are fixedly connected with limiting rods 16, the four corners at the bottom of the upper mold core 32 are provided with limiting slots 35 corresponding to the limiting rods 16, the limiting slots 35 are matched with the limiting rods 16, and the limiting rods 16 are inserted into the limiting slots 35.
The top of lower mold core 12 is fixedly connected with seal hoop 17, seal groove 36 has been seted up corresponding seal hoop 17 in the bottom of going up mold core 32, seal groove 36 and seal hoop 17 phase-match set up.
One end of the inserted bar 54, which is far away from the pressing plate 53, sequentially penetrates through the second limiting hole 33 and the first limiting hole 14, and the inserted bar 54, the second limiting hole 33 and the first limiting hole 14 are in sliding connection.
The pressing assembly 5 is composed of a supporting plate 51, an oil cylinder 52, a pressing plate 53 and an inserting rod 54, the oil cylinder 52 is fixedly connected to the top of the supporting plate 51, the telescopic end of the oil cylinder 52 penetrates through the pressing plate 53 which is fixedly connected to one end of the supporting plate 51, the inserting rod 54 is fixedly connected to four corners of the bottom of the pressing plate 53, the pressing plate 53 can disperse the pushing force of the telescopic end of the oil cylinder 52 during extension, and the pressing effect between the upper die 3 and the lower die 1 is better.
The equal fixedly connected with gag lever post 16 in four corners department at lower mold core 12 top, the four corners department of going up mold core 32 bottom all corresponds gag lever post 16 and has seted up spacing slot 35, spacing slot 35 sets up with gag lever post 16 phase-match, just gag lever post 16 pegs graft in the inside of spacing slot 35, and the precision when can making last mold core 32 and lower mold core 12 dock is higher.
Wherein, the top fixedly connected with of lower mold core 12 seals hoop 17, go up the bottom of mold core 32 and seted up seal groove 36 corresponding seals hoop 17, seal groove 36 sets up with seal hoop 17 phase-match, and seal hoop 17 joint can be so that lower mold core 12 and the leakproofness of going up between the mold core 32 better when the inside of seal groove 36.
Wherein, the plate walls at both sides of the first limit plate 27 are fixedly connected with first limit slide blocks 28, the inner wall of the second through hole 19 is provided with first limit slide grooves 29 corresponding to the first limit slide blocks 28, the first limit slide grooves 29 are arranged in match with the first limit slide blocks 28, and the first limit slide blocks 28 are slidably connected inside the first limit slide grooves 29, when the first limit plate 27 slides inside the second through hole 19, the first limit slide blocks 28 at both sides of the first limit plate 27 slide inside the first limit slide grooves 29, so that the first limit plate 27 can be more stable when sliding, the plate walls at both sides of the second limit plate 47 are fixedly connected with second limit slide blocks 48, the inner wall of the second through hole 19 is provided with second limit slide grooves 49 corresponding to the second limit slide blocks 48, the second limit slide grooves 49 are arranged in match with the second limit slide blocks 48, and second limiting slide blocks 48 are slidably connected inside second limiting slide grooves 49, and when second limiting plate 47 slides inside second through hole 19, second limiting slide blocks 48 on two sides of second limiting plate 47 slide inside second limiting slide grooves 49, so that second limiting plate 47 can slide more stably.
Wherein, the one end of inserted bar 54 that keeps away from clamp plate 53 runs through second spacing hole 33 and first spacing hole 14 in proper order, inserted bar 54 is sliding connection with second spacing hole 33 and first spacing hole 14, and when inserted bar 54 pegs graft in the inside of second spacing hole 33 and first spacing hole 14, can make upper die 3 more accurate with bed die 1 when carrying out the butt joint.
Specifically, the method comprises the following steps: an oil outlet structure for mold demoulding is characterized in that a casting guide pipe is fixedly connected to the side wall at the rear end of a lower mold core 12, an exhaust guide pipe is arranged at the top of the supporting plate 51 and sequentially penetrates through the supporting plate 51, a pressing plate 53, an upper mold base 31 and an upper mold core 32, the casting guide pipe and the exhaust guide pipe are respectively communicated with a lower mold cavity 15 and an upper mold cavity 34 inside the lower mold core 12 and the upper mold core 32, an oil discharge pipe is fixedly connected to the bottom of the lower mold base 11 and communicated with the lower mold cavity 15 inside the lower mold core 12 for discharging redundant oil, an electromagnetic valve is arranged at the position where the oil discharge pipe is flush with the inner bottom of the lower mold cavity 15, the inner bottom of the lower mold cavity 15 is horizontal, the oil discharge pipe cannot influence finished products during casting, a first guide pipe 21 and a second guide pipe 41 are connected with an oil conveying pipeline during oil coating inside the mold cavity, the first guide pipe 21 and the second guide pipe 41 can convey demoulding oil to the inner parts of a first groove 22 and a second groove 42, inside oil of first recess 22 and second recess 42 can be carried to first through-hole 18 and the inside of third through-hole 37 through first guide hole 23 and second guide hole 43, during the inside oil pressure increase of first through-hole 18 and third through-hole 37, the oil pressure can be with first shrouding 25 and 45 jack-ups of second shrouding, when first shrouding 25 and second shrouding 45 break away from with the through-hole, oil can be carried to the inside of die cavity from the inside of through-hole, need not to use the manual work to scribble the oil, make fat liquoring efficiency improve, it is safer during the fat liquoring simultaneously, the shrouding seals the through-hole under tension spring's tensile force effect when the pouring, make the finished product of producing better, after the oil is accomplished, the oil pressure in the pipeline reduces, the shrouding contracts to the inside of through-hole under tension spring's effect, can not exert an influence to the pouring.
In the process, in the oil injection stage before the pouring, the oil injection sequence is performed according to a diagonal injection mode, namely two adjacent third through holes 37 in the four corners of the top of the upper mold core 32 and two adjacent first through holes 18 in the four corners of the bottom of the lower mold core 12 are injected simultaneously, wherein the connecting line between the two selected third through holes 37 and the connecting line between the two first through holes 18 are coplanar and the plane is inclined to the ground, and then the remaining four through holes are injected simultaneously.
When the air inflation before the demoulding is carried out, a small amount of oil bodies are injected into all the first through holes 18 and the third through holes 37 simultaneously, the design can solve the problems that in the traditional final air pressure demoulding process, only the air pressure thrust is used for demoulding, when the grinding mould is inclined, the demoulding oil is easy to deflect and gather accidentally due to other impacts, so that different parts of the grinding tool to be demoulded have different demoulding difficulty degrees, thereby causing the problem of difficult demoulding of the mould, because the air pressure is added with a small amount of oil bodies, the original blown oil bodies which need to contact the workpiece to be demoulded can be replaced, thereby ensuring that the demolded parts at any position can be contacted by oil bodies in the demolding process, ensuring the smooth demolding of each position, the connection between the first through hole 18 and the third through hole 37 and the first groove 22 and the second groove 42 can be connected through a multi-channel solenoid valve;
in addition, the design that the oil path and the air path can be synchronously input into the first through hole 18 and the third through hole 37 ensures that when oil injection is carried out, the residual oil body can be completely pushed into the hole by utilizing the thrust of the air path, and the oil path cannot be retained in the pipeline for a long time.
While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (5)
1. The oil outlet structure for mold demolding is characterized by comprising a lower mold (1), a first oil outlet assembly (2), an upper mold (3), a second oil outlet assembly (4) and a pressing assembly (5), wherein the lower mold (1) is arranged below the upper mold (3), the first oil outlet assembly (2) is arranged inside the lower mold (1), the second oil outlet assembly (4) is arranged inside the upper mold (3), and the pressing assembly (5) is arranged above the upper mold (3);
the lower die (1) consists of a lower die base (11), a lower die core (12), a wing lug (13), a first limiting hole (14), a lower die cavity (15), a sealing hoop (17), a first through hole (18) and a second through hole (19), wherein the top of the lower die base (11) is fixedly connected with the lower die core (12), the wing lugs (13) are fixedly connected on the peripheral side walls of the lower die core (12), the top of the wing lug (13) is provided with the first limiting hole (14), the top of the lower die core (12) is provided with the lower die cavity (15), the four corners of the bottom in the lower die cavity (15) are provided with the first through holes (18), and the four corners of the bottom of the lower die core (12) are provided with the second through holes (19) corresponding to the first through holes (18);
the first oil outlet assembly (2) comprises a first guide pipe (21), a first groove (22), a first guide hole (23), a first sliding rod (24), a first sealing plate (25), a first tension spring (26) and a first limiting plate (27), one end of the first guide pipe (21) is inserted into the lower die base (11), the first guide pipe (21) is communicated with the first groove (22), the first groove (22) is formed in the side wall of the lower die core (12) close to one side of the lower die base (11), the first guide hole (23) is formed in each of four corners of the first groove (22), the other end of each of the four first guide holes (23) is communicated with the first through hole (18), the first sliding rod (24) is arranged in the first through hole (18), the first sealing plate (25) is fixedly connected to the top of the first sliding rod (24), and the first sealing plate (25) is slidably connected to the inside of the first through hole (18), the bottom of the first sealing plate (25) is fixedly connected with a first tension spring (26), the other end of the first tension spring (26) is fixedly connected with the inner bottom of the first through hole (18), the first through hole (18) is sleeved on the rod wall of the first sliding rod (24), one end, far away from the first sealing plate (25), of the first sliding rod (24) penetrates through the first through hole (18) to extend into the second through hole (19), and one end, extending into the second through hole (19), of the first sliding rod (24) is fixedly connected with a first limiting plate (27);
the upper die (3) consists of an upper die base (31), an upper die core (32), a second limiting hole (33), an upper die cavity (34), a limiting slot (35), a third through hole (37) and a fourth through hole (38), the bottom of the upper die base (31) is fixedly connected with the upper die core (32), the second limiting hole (33) is formed in each of the four corners of the top of the upper die base (31), the second limiting hole (33) is matched with the first limiting hole (14), the upper die cavity (34) is formed in the bottom of the upper die core (32), the third through hole (37) is formed in each of the four corners of the inner top of the upper die cavity (34), and the fourth through hole (38) is formed in each of the four corners of the top of the upper die core (32) corresponding to the third through hole (37);
the second oil outlet assembly (4) is composed of a second guide pipe (41), a second groove (42), a second guide hole (43), a second sliding rod (44), a second seal plate (45), a second tension spring (46) and a second limiting plate (47), one end of the second guide pipe (41) is inserted into the upper die base (31), the second guide pipe (41) is communicated with the second groove (42), the second groove (42) is formed in the side wall of one side, close to the upper die base (31), of the upper die core (32), the second guide hole (43) is formed in the four corners of the second groove (42), the other ends of the four second guide holes (43) are communicated with the third through hole (37), the second sliding rod (44) is arranged inside the third through hole (37), the second seal plate (45) is fixedly connected to the top of the second sliding rod (44), and the second seal plate (45) is connected to the inside of the third through hole (37) in a sliding manner, the bottom of the second sealing plate (45) is fixedly connected with a second tension spring (46), the other end of the second tension spring (46) is fixedly connected with the inner bottom of a third through hole (37), the third through hole (37) is sleeved on the rod wall of a second sliding rod (44), one end, far away from the second sealing plate (45), of the second sliding rod (44) penetrates through the third through hole (37) to extend into the fourth through hole (38), and one end, extending into the fourth through hole (38), of the second sliding rod (44) is fixedly connected with a second limiting plate (47);
the arranged first guide pipe 21 and the second guide pipe 41 are connected with a gas transmission pipeline, the first guide pipe 21 and the second guide pipe 41 can convey demolding gas to the inside of the first groove 22 and the second groove 42, the gas inside the first groove 22 and the second groove 42 can be conveyed to the inside of the first through hole 18 and the third through hole 37 through the first guide hole 23 and the second guide hole 43, when the gas pressure inside the first through hole 18 and the third through hole 37 is increased, the gas pressure can jack up the first sealing plate 25 and the second sealing plate 45, when the first sealing plate 25 and the second sealing plate 45 are separated from the through holes, the gas can be conveyed to the inside of the mold cavity from the inside of the through holes, and when the gas pushes the sealing plates out of the through holes, demolding can be rapidly carried out; in the oil injection stage before pouring, oil injection is sequentially carried out according to a diagonal injection mode, namely two adjacent third through holes (37) in four corners of the top of the upper mold core (32) and two adjacent first through holes (18) in four corners of the bottom of the lower mold core (12) are injected simultaneously, wherein a connecting line between two selected third through holes (37) and a connecting line between the two first through holes (18) are coplanar and inclined to the ground at a non-90-degree angle, then the remaining four through holes are injected simultaneously, when gas filling is carried out before demolding, a small amount of oil is injected into all the first through holes (18) and the third through holes (37), and the first through holes (18) and the third through holes (37) can be connected with the first grooves 22 and the second grooves 42 through a multi-channel solenoid valve;
first limit slide (28) of equal fixedly connected with on the siding of first limiting plate (27) both sides, first limit chute (29) have all been seted up corresponding first limit slide (28) on the inner wall of second through-hole (19), first limit chute (29) and first limit slide (28) phase-match set up, just first limit slide (28) sliding connection has the inside of first limit chute (29), equal fixedly connected with second limit slide (48) on the siding of second limiting plate (47) both sides, all correspond second limit slide (48) on the inner wall of second through-hole (19) and seted up second limit chute (49), second limit chute (49) set up with second limit slide (48) phase-match, just second limit slide (48) sliding connection is in the inside of second limit chute (49).
2. The oil discharging structure for mold release according to claim 1, wherein: the pressing assembly (5) is composed of a supporting plate (51), an oil cylinder (52), a pressing plate (53) and an inserting rod (54), the oil cylinder (52) is fixedly connected to the top of the supporting plate (51), the telescopic end of the oil cylinder (52) penetrates through the pressing plate (53) fixedly connected to one end of the supporting plate (51), and the inserting rod (54) is fixedly connected to four corners of the bottom of the pressing plate (53).
3. The oil discharging structure for mold release according to claim 1, wherein: the four corners department at lower mold core (12) top all fixedly connected with gag lever post (16), the four corners department of going up mold core (32) bottom all corresponds gag lever post (16) and has seted up spacing slot (35), spacing slot (35) and gag lever post (16) phase-match set up, just gag lever post (16) are pegged graft in the inside of spacing slot (35).
4. The oil discharging structure for mold release according to claim 1, wherein: the top fixedly connected with of lower mold core (12) seals hoop (17), seal groove (36) have been seted up corresponding to sealed hoop (17) in the bottom of going up mold core (32), seal groove (36) and sealed hoop (17) phase-match set up.
5. The oil discharging structure for mold release according to claim 2, wherein: one end, far away from the pressing plate (53), of the inserted rod (54) penetrates through the second limiting hole (33) and the first limiting hole (14) in sequence, and the inserted rod (54) is connected with the second limiting hole (33) and the first limiting hole (14) in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990331.7A CN110696307A (en) | 2019-10-17 | 2019-10-17 | Oil outlet structure for mold demolding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910990331.7A CN110696307A (en) | 2019-10-17 | 2019-10-17 | Oil outlet structure for mold demolding |
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| CN110696307A true CN110696307A (en) | 2020-01-17 |
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| CN201910990331.7A Withdrawn CN110696307A (en) | 2019-10-17 | 2019-10-17 | Oil outlet structure for mold demolding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113134955A (en) * | 2021-05-06 | 2021-07-20 | 莫颖乐 | Injection mold with condensation function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113134955B (en) * | 2021-05-06 | 2022-09-20 | 广东启智精密科技有限公司 | Injection mold with condensation function |
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