CN115026260A - Forming device of large automobile cylinder body - Google Patents
Forming device of large automobile cylinder body Download PDFInfo
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- CN115026260A CN115026260A CN202210954793.5A CN202210954793A CN115026260A CN 115026260 A CN115026260 A CN 115026260A CN 202210954793 A CN202210954793 A CN 202210954793A CN 115026260 A CN115026260 A CN 115026260A
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- core
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2236—Equipment for loosening or ejecting castings from dies
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a forming device of a large-sized automobile cylinder body, which comprises an upper die, a lower die, a die holder and an upper die core, wherein the upper die and the lower die are arranged in an up-down stacking manner, the upper die core and the lower die core which are arranged in an up-down stacking manner are arranged between the upper die and the lower die, a front curved surface core pulling device, a rear curved surface core pulling device, a cylinder inner cavity core pulling device and a cylinder end surface core pulling device are respectively arranged at four positions of the front part, the rear part, the left part and the right part between the upper die and the lower die, the die holder is arranged at the lower end of the lower die, and the forming device is characterized in that: the cylinder body terminal surface loose core include terminal surface core pulling block, terminal surface core pulling seat and thimble board, terminal surface core pulling seat be close to the one end middle part of die cavity and be provided with the installing port, but install the thimble board that elastic reset in the installing port. The invention has the characteristics of ensuring smooth demoulding, improving the product quality, improving the production efficiency, prolonging the service life of equipment, reducing the maintenance cost and the like.
Description
Technical Field
The invention relates to the technical field of automobile cylinder parts, in particular to a forming device of a large automobile cylinder.
Background
In order to solve the problem, a grid-shaped sheet reinforcing rib is arranged on the outer ring of the engine cylinder body, and the structure can improve the structural strength of the engine cylinder body and increase the heat dissipation area.
Conventional engine cylinder body surface can not have too many slice strengthening ribs, so the drawing of patterns in-process, each is loosed core and can directly deviate from, can not cause the phenomenon of product damage, and when selecting the product that the outer lane has the slice strengthening rib, when loosing core and removing, it can pull the damage slice strengthening rib to loose core power too greatly, cause the product to destroy, simultaneously because can increase a large amount of slice strengthening ribs on the outer lane of end, make the structural level of terminal surface change, cause local accumulated heat, make a large amount of gas shrinkage cavities appear in the product inside, simultaneously because the packing power between structure of loosing core and the terminal surface increases, joint strength between them also improves, cause the product skew during the drawing of patterns easily, in order to solve above-mentioned problem, need reform transform the mould structure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a forming device of a large automobile cylinder body, which has the characteristics of ensuring smooth demoulding, increasing the product quality, improving the production efficiency, prolonging the service life of equipment, reducing the maintenance cost and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a forming device of large-scale automobile cylinder body, includes mould, lower mould, die holder and last mold core, last mould and lower mould stack about being arranged, install between the two and stack about being last mold core and lower mold core, last mould and lower mould around install respectively on four positions and before the curved surface is loosed core, back curved surface is loosed core, cylinder inner chamber is loosed core and cylinder body terminal surface is loosed core, the lower mould lower extreme on install the die holder, cylinder body terminal surface loose core including terminal surface loose core piece, terminal surface loose core seat and thimble board, terminal surface loose core seat be close to the one end middle part of die cavity and be provided with the installing port, install the thimble that can elastically reset in the installing port, terminal surface loose core piece and terminal surface loose core seat set up the terminal surface butt joint of installing port, and terminal surface loose core piece and thimble board, thimble board on be provided with guide pillar, some cold type thimble and bolt, the four corners of the ejector plate facing to one side of the bottom surface of the mounting opening are all provided with elastic piece mounting holes, the elastic piece mounting holes are internally provided with elastic pieces which are abutted against the bottom surface of the mounting opening, the tail ends of a guide post, a point-cooling type ejector pin and a hole site bolt sequentially penetrate through the ejector plate and the end surface core-pulling block, a moving distance is reserved between the starting ends of the point-cooling type ejector pin and the hole site bolt and the ejector plate, when the end surface of a cylinder body is subjected to core-pulling demoulding, the end surface core-pulling block, the end surface core-pulling seat and the ejector plate all move towards the outer side under the driving of an oil cylinder, the point-cooling type ejector pin and the hole site bolt are kept still at the moment, the point-cooling type ejector pin and the hole site bolt ensure that the product is still to form ejection demoulding, when the ejector plate moves to the starting ends of the point-cooling type ejector pin and the hole site bolt, the point-cooling type ejector pin and the hole site bolt are separated from the product, and are matched under the action of the elastic pieces, and the ejector plate completes resetting.
In order to facilitate demolding of the end face end of the cylinder body, the situation that the cylinder body is driven to move cannot occur, the core pulling structure capable of being ejected elastically is provided in the technical scheme, a conventional top plate cannot be combined with the core pulling structure, and the main reason is that a space for installing and moving an ejector plate cannot be provided in the core pulling structure.
Meanwhile, in order to avoid the end face end of the cylinder body from having a gas shrinkage hole, the end face of the cylinder body needs to be modified by pulling a core, a point-cooling type thimble is additionally arranged, so that the product can be effectively and quickly cooled, the gas shrinkage hole is prevented from being formed, local hot gas is ensured to be quickly discharged, and the product quality is improved.
The conventional thimble structure does not have the characteristic of high temperature conduction, and the conventional spot-cooling insert does not have the characteristic of high strength of the thimble, so the spot-cooling thimble needs to be improved.
As a supplement to the technical solution, the point-cooling thimble includes a cooling structure butt joint, a cooling tube, a butt joint, and a protection sleeve, wherein one end of the cooling structure butt joint is provided with the cooling tube, the cooling tube is butt-jointed with the butt joint and inserted into a point-cooling insert tube in the butt joint, and the protection sleeve is arranged outside the point-cooling insert tube.
The cooling structure butt joint of the technical scheme is mainly used for being in butt joint with an external cooling system, and meanwhile, the butt joint is mainly used for being limited with an ejector plate, so that a point-cooling type ejector pin can be pushed to a mounting position by the ejector plate, cooling water is smoothly input into a point-cooling insert pipe through the arrangement of a cooling pipe, the point-cooling insert pipe is of a copper pipe structure, a protective sleeve on the point-cooling insert pipe is made of stainless steel, a small hole is formed in the end portion of the protective sleeve, the end portion of the point-cooling insert pipe is located in the small hole, the conduction efficiency of the temperature of the copper point-cooling insert pipe can be greatly increased, rapid point cooling of the end portion is achieved, meanwhile, the protective sleeve made of stainless steel can smoothly support a product, stable demolding is achieved, the structural strength of the point-cooling type ejector pin is improved, the service life of the point-cooling type ejector pin is prolonged, and maintenance cost is reduced.
As a supplement to the technical solution, the bottom of the end face core-pulling seat is provided with two cooling pipeline mounting openings extending to the lower side of the mounting opening, and a cover plate structure covering the cooling pipeline mounting openings is embedded and mounted on the lower end face of the end face core-pulling seat.
In order to facilitate the communication between the point-cooling type ejector pin and an external cooling system, the end face core pulling seat is provided with a cooling pipeline installation port, a pipeline used for communicating the point-cooling type ejector pin with the external cooling system is installed in the cooling pipeline installation port, and meanwhile, the cooling pipeline installation port is closed by arranging a cover plate structure, so that the cooling pipeline is arranged in a centralized mode.
As a supplement to the technical scheme, the middle of the core-pulling surface of the end-surface core-pulling block is provided with two open inserts, the outer edges of the two open inserts are provided with a splayed smooth groove, and a plurality of spot-cooling holes corresponding to the spot-cooling thimbles are uniformly arranged on the bottom surface of the smooth groove.
The end face part of the cylinder body is provided with two butt joints, and the edge of the butt joint is provided with a connecting flange structure.
As a supplement to the technical scheme, a cooling valve mounting frame is arranged on the outer side of the cylinder body end face core pulling, the middle of the cooling valve mounting frame is hollow, and two connecting frames which are in butt joint with the outer side of the cylinder body end face core pulling are arranged on two sides of the upper portion of the cooling valve mounting frame.
Through setting up the cooling valve mounting bracket and being used for concentrating the installation cooling valve among this technical scheme to practice thrift installation space, simplify the structure of loosing core.
As a supplement to the technical scheme, the front side and the rear side of the end face core pulling seat are provided with mold bases extending outwards, a core pulling oil cylinder mounting frame corresponding to the end face core pulling seat is installed between the two mold bases, a core pulling oil cylinder is installed on the core pulling oil cylinder mounting frame, and a main shaft of the core pulling oil cylinder penetrates through the core pulling oil cylinder mounting frame to be in butt joint with the end face core pulling seat.
As a supplement to the technical solution, the lower side of the mold frame is provided with stacked contact switches, the outer side of the end face core-pulling seat is provided with a contact support corresponding to the contact switches, the side surface of one end of the contact support close to the end face core-pulling seat is provided with a first contact protrusion, the side surface of the other end of the contact support is provided with a second contact protrusion, the first contact protrusion corresponds to a contact head of the contact switch located at the upper part, the second contact protrusion corresponds to a contact head of the contact switch located at the lower part, and opposite ends of the first contact protrusion and the second contact protrusion are provided with inclined planes.
As a supplement to the technical scheme, one end of the guide pillar is connected with the bottom of the mounting opening, and the other end of the guide pillar penetrates through the ejector plate and is in butt joint with the end face core-pulling block.
Has the advantages that: the invention relates to a forming device of a large-scale automobile cylinder body, which is characterized in that an ejector plate is arranged to avoid driving a product to move when the end face of the cylinder body is subjected to core pulling, the ejector plate supports the product through a point-cooling type ejector pin on the ejector plate, so that smooth demolding is realized, the product is ensured to be smoothly demolded, the end face of the cylinder body needs to be modified for avoiding a gas shrinkage cavity from appearing at the end face of the cylinder body, the point-cooling type ejector pin is added to effectively ensure that the product is rapidly cooled, the forming of the gas shrinkage cavity is avoided, the local hot gas is rapidly discharged, the product quality is improved, the smooth demolding is ensured, the product quality is improved, the production efficiency is improved, the service life of equipment is prolonged, the maintenance cost is reduced, and the like.
Drawings
FIG. 1 is a structural view of the present invention;
FIG. 2 is a structural view of a cylinder produced by the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a view of the vacuum assembly of the present invention in its configuration;
FIG. 5 is a structural view of the cylinder end face core pulling device according to the invention;
fig. 6 is a view of the structure at the open insert according to the present invention;
fig. 7 is a structural view of an ejector plate according to the present invention;
FIG. 8 is a structural view of a cover plate structure according to the present invention;
FIG. 9 is a structural view of the elastic member at the mounting hole according to the present invention;
FIG. 10 is a structural view of a point-cooled thimble according to the present invention;
FIG. 11 is a structural view of a contact mounting according to the present invention;
FIG. 12 is a cross-sectional view of a cylinder end core according to the present invention;
FIG. 13 is a structural view at a first female mold section according to the invention;
FIG. 14 is a view of the structure at the exhaust runner according to the present invention;
fig. 15 is a structural view at an auxiliary flow passage according to the present invention;
FIG. 16 is a structural view at the lower die of the present invention;
FIG. 17 is an enlarged view of a portion of the invention at A in FIG. 16;
FIG. 18 is a structural view at the support plate of the present invention;
FIG. 19 is a structural view at the top plate according to the present invention;
FIG. 20 is a structural view of the guide sleeve of the present invention;
fig. 21 is a structural view of the cylinder inner cavity core pulling of the invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to a forming device of a large-scale automobile cylinder body, which comprises an upper die 3, a lower die 4, a die holder 5 and an upper die core 10, wherein the upper die 3 and the lower die 4 are arranged in an up-down stacking manner, the upper die core 10 and the lower die core 11 which are stacked up and down are arranged between the upper die 3 and the lower die 4, a front curved surface loose core 8, a rear curved surface loose core 9, a cylinder inner cavity loose core 6 and a cylinder end surface loose core 7 are respectively arranged at the front position, the rear position, the left position, the right position, the front position, the rear position, the left position, the rear position and the right position between the upper die 3 and the lower die 4, the die holder 5 is arranged at the lower end of the lower die 4, the cylinder end surface loose core 7 comprises an end surface loose core block 13, an end surface loose core seat 14 and an ejector plate 24, a mounting opening is arranged in the middle of one end of the end surface loose core seat 14, an ejector plate 24 capable of elastic resetting is arranged in the mounting opening, the end surface loose core block 13 is in butt joint with the end surface loose core seat 14, and the end surface core-pulling block 13 is attached to the ejector plate 24, the ejector plate 24 is provided with a guide pillar 40, a point-cooling type thimble 23 and a hole-site bolt 25, four corners of the ejector plate 24 facing one side of the bottom surface of the mounting port are all provided with elastic-part mounting holes 28, an elastic part which is propped against the bottom surface of the mounting port is mounted in the elastic-part mounting holes 28, the tail ends of the guide pillar 40, the point-cooling type thimble 23 and the hole-site bolt 25 sequentially penetrate through the ejector plate 24 and the end surface core-pulling block 13, a moving distance is left between the starting ends of the point-cooling type thimble 23 and the hole-site bolt 25 and the ejector plate 24, as shown in fig. 12, when the cylinder end surface core-pulling 7 is demoulded, the end surface core-pulling block 13, the end surface core-pulling seat 14 and the ejector plate 24 all move towards the outer side under the driving of the cylinder, at the point-cooling type thimble 23 and the hole-site bolt 25 are kept stationary, the point-cooling type thimble 23 and the hole-site bolt 25 ensure that the product is stationary, and (3) ejection and demolding are formed, when the ejector plate 24 moves to the starting end of the point-cooling type ejector pin 23 and the hole position pin 25, the point-cooling type ejector pin 23 and the hole position pin 25 are buckled, so that the point-cooling type ejector pin 23 and the hole position pin 25 are separated from a product, and when the mold is closed, the ejector plate 24 is reset under the action of the elastic piece.
In order to facilitate the demolding of the end face end 1 of the cylinder body, the situation of driving the cylinder body to move cannot occur, the technical scheme provides an elastically-ejected core pulling structure, a conventional top plate cannot be combined with the core pulling structure, and the main reason is that a space for installation and movement of an ejector plate cannot be provided in the core pulling structure.
Meanwhile, in order to avoid the occurrence of a gas shrinkage hole in the end face end 1 of the cylinder body, the cylinder body end face core pulling 7 needs to be modified, the point-cooling type ejector pin 23 is additionally arranged, so that the product can be effectively and quickly cooled, the gas shrinkage hole is prevented from being formed, the local hot gas is ensured to be quickly discharged, and the product quality is improved.
The conventional thimble structure does not have the characteristic of high temperature conduction, while the conventional spot-cooling insert does not have the characteristic of high strength of the thimble, so that the spot-cooling thimble 23 needs to be improved.
As shown in fig. 7-10, as a supplement to this embodiment, the point-cooling thimble 23 includes a cooling structure butt joint 29, a cooling pipe 30, a butt joint 31, and a protection sleeve 32, wherein the cooling structure butt joint 29 has the cooling pipe 30 at one end, the cooling pipe 30 is butt jointed with the butt joint 31 and inserted into a point-cooling insert pipe 33 in the butt joint 31, and the protection sleeve 32 is disposed outside the point-cooling insert pipe 33.
This technical scheme's cooling structure butt joint 29 is mainly used for docking with external cooling system, and butt joint 31 is mainly used for prescribing a limit to with thimble board 24 simultaneously, ensure that point cold type thimble 23 can be promoted the mounted position by thimble board 24, be used for inputing the cooling water to point cold insert pipe 33 smoothly through setting up cooling tube 30, point cold insert pipe 33 adopts copper tubular construction, and lag 32 on the point cold insert pipe 33 adopts stainless steel, the tip of lag 32 is provided with the aperture, the tip of point cold insert pipe 33 is located the aperture, the point cold insert pipe 33 of point can greatly increased the conduction efficiency of temperature, realize the quick point of tip cold, lag 32 that the stainless steel made simultaneously can withstand the product smoothly, realize stable drawing of patterns, improve point cold type thimble 23 structural strength, improve point cold type thimble 23 life, and reduce the maintenance cost.
As a supplement to the present technical solution, the bottom of the end face core-pulling seat 14 is provided with two cooling pipe installation openings 26 extending to the lower side of the installation openings, and a cover plate structure 27 covering the cooling pipe installation openings 26 is embedded and installed on the lower end face of the end face core-pulling seat 14.
In order to facilitate communication between the point-cooling type ejector pins 23 and an external cooling system, a cooling pipe mounting opening 26 is provided in the end-face core-pulling seat 14, a pipe for communicating the point-cooling type ejector pins 23 with the external cooling system is mounted in the cooling pipe mounting opening 26, and a cover plate structure 27 is provided for closing the cooling pipe mounting opening 26, so that the cooling pipes are arranged in a centralized manner.
As shown in fig. 6, as a supplement to the present technical solution, the central portion of the core-pulling surface of the end-surface core-pulling block 13 is provided with two open inserts 21, outer edges of the two open inserts 21 are provided with a smooth groove 22 in a shape of a Chinese character 'ba', and a plurality of spot-cooling holes corresponding to the spot-cooling type thimbles 23 are uniformly arranged on a bottom surface of the smooth groove 22.
Two butt-joint ports are arranged on the end face part of the cylinder body, and meanwhile, a connecting flange structure is arranged on the edge of each butt-joint port, in order to ensure the forming of the structure, an independent opening insert 21 needs to be arranged, and meanwhile, a smooth groove 22 arranged on the outer ring of the opening insert 21 is used for facilitating the forming of the butt-joint flange.
As shown in fig. 11, as a supplement to the present technical solution, a cooling valve mounting bracket 19 is provided on the outer side of the cylinder end surface core pulling 7, the middle of the cooling valve mounting bracket 19 is hollow, and two connecting frames which are in butt joint with the outer side of the cylinder end surface core pulling 7 are provided on two sides of the upper portion of the cooling valve mounting bracket 19.
In the technical scheme, the cooling valve mounting frame 19 is used for mounting the cooling valves in a centralized manner, so that the mounting space is saved, and the core pulling structure is simplified.
As a supplement to the present technical solution, the front side and the rear side of the end face core-pulling seat 14 are provided with mold bases 15 extending outward, a core-pulling cylinder mounting bracket 17 corresponding to the end face core-pulling seat 14 is installed between the two mold bases 15, the core-pulling cylinder mounting bracket 17 is provided with a core-pulling cylinder 16, and a main shaft of the core-pulling cylinder 16 passes through the core-pulling cylinder mounting bracket 17 to be butted with the end face core-pulling seat 14.
As a supplement to the present technical solution, the lower side of the mold frame 15 is provided with stacked contact switches 20, the outer side of the end surface core-pulling seat 14 is provided with a contact support 18 corresponding to the contact switch 20, one end side of the contact support 18 close to the end surface core-pulling seat 14 is provided with a first contact protrusion 35, the other end side of the contact support 18 is provided with a second contact protrusion 34, the first contact protrusion 35 corresponds to a contact of the upper contact switch 20, the second contact protrusion 34 corresponds to a contact of the lower contact switch 20, and opposite ends of the first contact protrusion 35 and the second contact protrusion 34 are both provided with an inclined surface.
As a supplement to the technical scheme, one end of the guide post 40 is connected with the bottom of the mounting opening, and the other end passes through the ejector plate 24 and is butted with the end surface core-pulling block 13.
As shown in fig. 14 and 15, in order to improve the production efficiency of the whole cylinder body and ensure the quality of the cylinder body, a vacuumizing structure is required to be arranged to ensure the production with rapid quality guarantee, and the conventional vacuumizing structure is usually arranged at the relative position of the sprue bush, so that air in the mold cavity is discharged while molten aluminum flows in, the occurrence of air shrinkage cavity is avoided, the product quality is improved, and the production efficiency is improved.
And the die cavity of the cylinder body structure is not uniformly distributed, the conventional exhaust runner is not beneficial to aluminum liquid filling, and the phenomenon that local aluminum liquid rolls is easily caused, so that air coils are generated inside the product.
In order to solve the problems, an exhaust runner in a die cavity is improved, a vacuum-pumping assembly 12 is arranged on the front side of the right end of a cylinder end face loose core 7, the vacuum-pumping assembly 12 is installed between an upper die 3 and a lower die 4, the upper die core 10 and the lower die core 11 form the die cavity, an exhaust runner 42 surrounding the rear half ring of the die cavity is arranged on the front part of the lower end face of the upper die core 10, two ends of the exhaust runner 42 extend forwards, the left end of the exhaust runner 42 extends to the edge of the upper side of an opening of the cylinder body to form a left runner 43, the left runner 43 is communicated with the die cavity through a cinder ladle structure, the right end of the exhaust runner 42 extends to the lower side of the end face loose core block 13 to form a right runner 44, the right runner 44 is communicated with the die cavity through an exhaust cinder ladle, a boss is formed on the rear part of the right side of the end face loose core block 13, and an auxiliary runner 45 is arranged on the boss, the auxiliary flow passage 45 is communicated with the die cavity through a slag ladle structure, and the lower end of the auxiliary flow passage 45 extends along the edge of the end surface core-pulling block 13 and is communicated with the exhaust flow passage 42.
The end part of the cylinder body is large in size, and the gas to be discharged is large in amount, so that the auxiliary flow channel 45 and the right flow channel 44 are both arranged on the end surface core-pulling block 13, the condition of rapidly discharging gas is realized, the size of the cavity part of the cylinder body is small, the gas can be slowly pumped out through prolonging the exhaust flow channel, and the phenomenon that the aluminum liquid in the part rolls to cause internal air volume is avoided.
The conventional vacuumizing structure is usually directly butted with the exhaust runner, when the vacuumizing structure is started, the airflow output speed is increased instantly, the aluminum liquid may receive overlarge suction instantly to roll, and in order to solve the problem, the butting part needs to be improved.
The right front portion of last mould core 10 and lower mould core 11 be provided with evacuation runner 41, the import and the exhaust runner 42 intercommunication of evacuation runner 41, evacuation runner 41's export and evacuation subassembly 12 intercommunication, evacuation runner 41 middle part be provided with the isosceles triangle boss, the apex angle of isosceles triangle boss corresponds with evacuation runner 41's import, isosceles triangle boss outer lane is provided with round isosceles triangle runner, isosceles triangle runner's base middle part and evacuation subassembly 12 intercommunication.
The base of isosceles triangle boss can be with the reposition of redundant personnel of bleeding of evacuation subassembly 12, forms two strands of air currents for evacuation structure initial bleed intensity can reduce, and simultaneously after aluminium liquid is full of the die cavity, unnecessary aluminium liquid can enter into the exhaust runner, and the top of isosceles triangle boss can effectually shunt unnecessary aluminium liquid, slows down aluminium liquid kinetic energy, thereby avoids aluminium liquid to enter into evacuation subassembly 12 in, conveniently exhausts the clearance of cinder ladle structure, improves production efficiency.
As shown in fig. 16 and 17, the four corners of the lower mold 4 are provided with butt joint grooves 46, the vertical surfaces of two sides of each butt joint groove 46 are provided with clamping strips 47, the four corners of the upper mold 3 are embedded with mold closing parts 48, the lower ends of the mold closing parts 48 are inserted between the two clamping strips 47, the four corners of the upper end surface of the lower mold 4 are provided with positioning holes 50, the four corners of the lower end surface of the upper mold 3 are provided with positioning columns 51 inserted into the positioning holes 50, and the upper ends of the mold closing parts 48 are butted with the upper mold 3 through two connecting screws 49.
As shown in fig. 18-20, a top plate 54 and a support plate 52 which move up and down are installed in the die holder 5, a plurality of thimble structures which penetrate through the lower die 4 and the lower die core 11 are installed on the top plate 54 and the support plate 52, four top plate guide posts 57 which vertically penetrate through the top plate 54 and the support plate 52 are installed in the middle of the lower die 4, and four guide sleeves 58 which are matched with the four top plate guide posts 57 are installed between the top plate 54 and the support plate 52.
Two stabilizing blocks 61 are installed side by side on the front side of the top plate 54, a vertical pressing strip 60 embedded and fixed in the die holder 5 is installed on the front side of each stabilizing block 61, and the stabilizing blocks 61 and the vertical pressing strips 60 are arranged in a laminating mode.
The middle of the lower end face of the supporting plate 52 is provided with an ejection cylinder butt-joint plate 53, four limiting plates 59 are embedded into the lower end face of the die holder 5, the four limiting plates 59 are respectively arranged at the front end and the rear end close to the two sides of the supporting plate 52, and the supporting plate 52 is provided with limiting clamping grooves matched with the extending ends of the limiting plates 59.
Two transverse inner grooves 55 are arranged in parallel in the front and at the back of the middle of the upper end face of the die holder 5, and a plurality of clamps 56 are arranged on the transverse inner grooves 55.
As shown in fig. 13, a first concave-shaped part 36, a second concave-shaped part 37, a third concave-shaped part 38 and a fourth concave-shaped part 39 are embedded in the front part of the upper mold core 10, two transverse rib structures 2 are required to be formed on the upper side of the front semi-arc surface of the whole cylinder body, and the molding of the parts can be ensured by processing the cavity surface of the upper mold core 10 under normal conditions, but in the actual processing process, the processing center cannot directly process, the moving track of the cutter interferes with other parts of the upper mold core 10 to cause the damage of the upper mold core 10, in order to solve the above problems, an insert embedded in the upper mold core 10 is provided, the first concave-shaped part 36, the second concave-shaped part 37, the third concave-shaped part 38 and the fourth concave-shaped part 39 mold the transverse rib structures 2 on the product, and during the injection of the molten aluminum, the first concave-shaped part 36, The transverse reinforcing rib structure 2 is rapidly formed between the side surfaces of the second, third and fourth inner concave-formed parts 37, 38 and 39 and the upper die core 10, and smooth production of products is ensured.
As shown in fig. 21, need carry out the assisted forming to the inner chamber of cylinder body among this technical scheme, so set up the cylinder body inner chamber and loose core 6, the cylinder body inner chamber is loosed core 6 and is drawn core 6 and include that inner chamber core-pulling piece 66, inner chamber end extend limit formed part 65, inner chamber core-pulling seat 64 and inner chamber core-pulling oil cylinder support 62, inner chamber core-pulling seat 64 be close to one side of die cavity and install inner chamber core-pulling piece 66, inner chamber end extend limit formed part 65 cup joint at inner chamber core-pulling piece 66 root, and form fixedly with inner chamber core-pulling seat 64, inner chamber core-pulling oil cylinder support 62 install on the lower mould 4 right side, the front and back side of inner chamber core-pulling oil cylinder support 62 all is provided with slope strengthening rib 63.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the directions or positional relationships shown in the drawings, and are for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above detailed description is provided for the forming device of the large automobile cylinder provided by the present application, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. The utility model provides a forming device of large automobile cylinder body, includes mould (3), lower mould (4), die holder (5) and last mould core (10), last mould (3) and lower mould (4) be about stacking and arrange, install between the two and be about stacking last mould core (10) and lower mould core (11), last mould (3) and lower mould (4) between install respectively on four positions all around between front curve loose core (8), back curve loose core (9), cylinder body inner chamber loose core (6) and cylinder body terminal surface loose core (7), lower mould (4) lower extreme on install die holder (5), its characterized in that: the cylinder body end face loose core (7) comprises an end face core pulling block (13), an end face core pulling seat (14) and an ejector plate (24), a mounting port is arranged in the middle of one end, close to the die cavity, of the end face core pulling seat (14), the ejector plate (24) capable of elastic resetting is installed in the mounting port, the end face core pulling block (13) and the end face core pulling seat (14) are in end face butt joint with the mounting port, the end face core pulling block (13) is attached to the ejector plate (24), the ejector plate (24) is provided with a guide pillar (40), a point cooling type ejector pin (23) and a hole position bolt (25), elastic piece mounting holes (28) are formed in four corners of one side, facing the bottom surface of the mounting port, of the ejector plate (24), elastic pieces jacking with the bottom surface of the mounting port are installed in the elastic piece mounting holes (28), the guide pillar (40), the point cooling type ejector pin (23) and the hole position bolt (25) all end portions sequentially penetrate through the ejector plate (24) and the end face core pulling block (13), a moving distance is reserved between the starting end of the point-cooling ejector pin (23) and the hole position pin (25) and the ejector plate (24), when the cylinder body end surface core pulling (7) is used for demolding, the end surface core pulling block (13), the end surface core pulling seat (14) and the ejector plate (24) all move towards the outer side under the driving of an oil cylinder, the point-cooling ejector pin (23) and the hole position pin (25) are kept still at the moment, the point-cooling ejector pin (23) and the hole position pin (25) ensure that a product is not moved to form ejection demolding, when the ejector plate (24) moves to the starting end of the point-cooling ejector pin (23) and the hole position pin (25), the point-cooling ejector pin (23) and the hole position pin (25) are separated from the product, and when the mold is closed, the ejector plate (24) completes resetting under the action of an elastic piece.
2. The molding device of a large automobile cylinder according to claim 1, characterized in that: the point cooling type ejector pin (23) comprises a cooling structure butt joint (29), a cooling pipe (30), a butt joint (31) and a protective sleeve (32), wherein one end of the cooling structure butt joint (29) is provided with the cooling pipe (30), the cooling pipe (30) is in butt joint with the butt joint (31) and is inserted into a point cooling insert pipe (33) in the butt joint (31), and the protective sleeve (32) is arranged outside the point cooling insert pipe (33).
3. The molding device of a large automobile cylinder according to claim 1, characterized in that: the bottom of the end face core-pulling seat (14) is provided with two cooling pipeline mounting openings (26) extending to the lower side of the mounting opening, and a cover plate structure (27) covering the cooling pipeline mounting openings (26) is embedded and mounted on the lower end face of the end face core-pulling seat (14).
4. The molding device of a large automobile cylinder according to claim 1, characterized in that: the core pulling device is characterized in that two opening inserts (21) are arranged in the middle of the core pulling surface of the end surface core pulling block (13), the outer edges of the two opening inserts (21) are provided with splayed smooth grooves (22), and a plurality of spot cooling holes corresponding to spot cooling type thimbles (23) are uniformly distributed on the bottom surfaces of the smooth grooves (22).
5. The molding device of a large automobile cylinder according to claim 3, characterized in that: the cylinder body terminal surface loose core (7) outside on be provided with cooling valve mounting bracket (19), the middle part of cooling valve mounting bracket (19) leak sky, its upper portion both sides be provided with two with the cylinder body terminal surface loose core (7) outside butt joint link.
6. The molding device of a large automobile cylinder according to claim 1, characterized in that: the front side and the back side of terminal surface core pulling seat (14) all be provided with die carrier (15) of outwards extending, install between two die carriers (15) and pull core hydro-cylinder mounting bracket (17) that correspond with terminal surface core pulling seat (14), pull core hydro-cylinder mounting bracket (17) on install and pull core hydro-cylinder (16), the main shaft of pull core hydro-cylinder (16) pass and pull core hydro-cylinder mounting bracket (17) and butt joint with terminal surface core pulling seat (14).
7. The molding device of a large automobile cylinder according to claim 6, characterized in that: the die carrier (15) downside be provided with be the contact switch (20) that stack, terminal surface core-pulling seat (14) the outside be provided with contact support (18) that contact switch (20) correspond, contact support (18) be close to terminal surface core-pulling seat (14) one end side be provided with first contact arch (35), contact support (18) other end side be provided with second contact arch (34), first contact arch (35) correspond with the contact of contact switch (20) that is located upper portion, second contact arch (34) correspond with the contact of contact switch (20) that is located the lower part, the looks remote site of first contact arch (35) and second contact arch (34) all be provided with the inclined plane.
8. The molding device of a large automobile cylinder according to claim 1, characterized in that: one end of the guide post (40) is connected with the bottom of the mounting opening, and the other end of the guide post passes through the ejector plate (24) and is butted with the end surface core-pulling block (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210954793.5A CN115026260A (en) | 2022-08-10 | 2022-08-10 | Forming device of large automobile cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210954793.5A CN115026260A (en) | 2022-08-10 | 2022-08-10 | Forming device of large automobile cylinder body |
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| CN115026260A true CN115026260A (en) | 2022-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210954793.5A Pending CN115026260A (en) | 2022-08-10 | 2022-08-10 | Forming device of large automobile cylinder body |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234640A (en) * | 1986-04-03 | 1987-10-14 | Asahi Malleable Iron Co Ltd | Device for shifting core for molding machine |
| JP2003200248A (en) * | 2001-12-26 | 2003-07-15 | Toyota Motor Corp | Molding die and its displacement method |
| CN201147835Y (en) * | 2008-01-31 | 2008-11-12 | 宁波合力模具科技股份有限公司 | Cast die side loose core cast ejecting mechanism |
| CN203830698U (en) * | 2014-05-28 | 2014-09-17 | 宁波市佳利来机械制造有限公司 | Engine cylinder block die-casting molding die |
| CN105618704A (en) * | 2015-11-25 | 2016-06-01 | 宁波君灵模具技术有限公司 | Step-by-step core-pulling mechanism and method for die-casting mold |
| CN205763739U (en) * | 2016-04-20 | 2016-12-07 | 共立精机(大连)有限公司 | Engine cylinder-body die casting |
| CN106270447A (en) * | 2016-08-31 | 2017-01-04 | 宁波市北仑燎原模铸有限公司 | A kind of transmission case mould |
| CN106735071A (en) * | 2017-02-14 | 2017-05-31 | 广东文灿模具有限公司 | Slipper block loose core device |
| CN107498020A (en) * | 2017-08-29 | 2017-12-22 | 宁波吉烨汽配模具有限公司 | The slide block device that a kind of band ejects in advance |
| CN112091195A (en) * | 2020-09-11 | 2020-12-18 | 肇庆高新区鸿胜模具制造有限公司 | Sliding block ejector pin structure of casting mold |
| CN113145826A (en) * | 2021-05-06 | 2021-07-23 | 宁波臻至机械制造有限公司 | Core-pulling system and core-pulling method of die-casting die |
| CN214684201U (en) * | 2020-12-28 | 2021-11-12 | 佛山市顺德万和电气配件有限公司 | Sliding block ejection mechanism and sliding block core-pulling device |
| CN215199617U (en) * | 2021-11-11 | 2021-12-17 | 宁波市北仑欣玉模具制造有限公司 | Die-casting die core structure for automobile compressor cylinder body |
| CN216729479U (en) * | 2021-12-07 | 2022-06-14 | 宁波斯贝科技股份有限公司 | Die-casting mold core structure of cylinder body |
-
2022
- 2022-08-10 CN CN202210954793.5A patent/CN115026260A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62234640A (en) * | 1986-04-03 | 1987-10-14 | Asahi Malleable Iron Co Ltd | Device for shifting core for molding machine |
| JP2003200248A (en) * | 2001-12-26 | 2003-07-15 | Toyota Motor Corp | Molding die and its displacement method |
| CN201147835Y (en) * | 2008-01-31 | 2008-11-12 | 宁波合力模具科技股份有限公司 | Cast die side loose core cast ejecting mechanism |
| CN203830698U (en) * | 2014-05-28 | 2014-09-17 | 宁波市佳利来机械制造有限公司 | Engine cylinder block die-casting molding die |
| CN105618704A (en) * | 2015-11-25 | 2016-06-01 | 宁波君灵模具技术有限公司 | Step-by-step core-pulling mechanism and method for die-casting mold |
| CN205763739U (en) * | 2016-04-20 | 2016-12-07 | 共立精机(大连)有限公司 | Engine cylinder-body die casting |
| CN106270447A (en) * | 2016-08-31 | 2017-01-04 | 宁波市北仑燎原模铸有限公司 | A kind of transmission case mould |
| CN106735071A (en) * | 2017-02-14 | 2017-05-31 | 广东文灿模具有限公司 | Slipper block loose core device |
| CN107498020A (en) * | 2017-08-29 | 2017-12-22 | 宁波吉烨汽配模具有限公司 | The slide block device that a kind of band ejects in advance |
| CN112091195A (en) * | 2020-09-11 | 2020-12-18 | 肇庆高新区鸿胜模具制造有限公司 | Sliding block ejector pin structure of casting mold |
| CN214684201U (en) * | 2020-12-28 | 2021-11-12 | 佛山市顺德万和电气配件有限公司 | Sliding block ejection mechanism and sliding block core-pulling device |
| CN113145826A (en) * | 2021-05-06 | 2021-07-23 | 宁波臻至机械制造有限公司 | Core-pulling system and core-pulling method of die-casting die |
| CN215199617U (en) * | 2021-11-11 | 2021-12-17 | 宁波市北仑欣玉模具制造有限公司 | Die-casting die core structure for automobile compressor cylinder body |
| CN216729479U (en) * | 2021-12-07 | 2022-06-14 | 宁波斯贝科技股份有限公司 | Die-casting mold core structure of cylinder body |
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