CN117900416A - Mold pressing device for impeller casting and demolding method - Google Patents
Mold pressing device for impeller casting and demolding method Download PDFInfo
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- CN117900416A CN117900416A CN202410249127.0A CN202410249127A CN117900416A CN 117900416 A CN117900416 A CN 117900416A CN 202410249127 A CN202410249127 A CN 202410249127A CN 117900416 A CN117900416 A CN 117900416A
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- impeller
- injection molding
- electric telescopic
- rotating
- pressing device
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- 238000003825 pressing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005266 casting Methods 0.000 title claims abstract description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000001746 injection moulding Methods 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims abstract description 10
- 239000007924 injection Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims abstract description 9
- 238000007723 die pressing method Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- B22D17/2272—Sprue channels
- B22D17/2281—Sprue channels closure devices therefor
-
- 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
- B22D17/26—Mechanisms or devices for locking or opening dies
- B22D17/263—Mechanisms or devices for locking or opening dies mechanically
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a demolding method of a die pressing device for impeller casting, which is applied to the die pressing device for impeller casting, and the device comprises a processing pedestal: the bottom fixed mounting of processing pedestal inner chamber has the platform of moulding plastics, the inner chamber of processing pedestal is provided with the compound die subassembly, the top fixedly connected with support frame of processing pedestal, the inner chamber of support frame is provided with the pressfitting subassembly, the pressfitting subassembly includes the dwang that runs through to the support frame inner chamber from the support frame top. According to the invention, the impeller-shaped injection molding runner is formed through the matched use of the processing pedestal and the mold clamping assembly, then the injection molding runner is sealed through the matched use of the supporting frame and the pressing assembly, and finally the injection molded impeller is ejected and demolded through the matched use of the demolding assembly and the rotating assembly after injection molding is finished, so that the purposes of thorough runner sealing, rapid injection molding runner combination and stable and rapid demolding can be achieved.
Description
Technical Field
The invention belongs to the technical field of impeller casting, and particularly relates to a die pressing device for impeller casting and a demolding method.
Background
The impeller is composed of a hub, blades and a cover plate, the cover plate and the rear cover plate of the submerged pump impeller are divided into a front cover plate and a rear cover plate at the inlet side of the impeller, the cover plate at the other side of the impeller can be divided into the following three types according to the form of the impeller, and the impeller can be divided into radial flow type, mixed flow type and axial flow type according to the shape of the impeller and the flowing direction of liquid in a pump shell.
The impeller is axially flowing, the energy obtained by the liquid mainly is thrust generated by rotation of the impeller, the impeller cannot meet the injection molding requirement of the impeller shape due to the special shape of the impeller in the casting process, and the impeller possibly collides with the mold due to the arc-shaped blades of the impeller during demolding, so that the mold pressing device and the demolding method for casting the impeller are needed.
Disclosure of Invention
The invention aims to provide a die pressing device for impeller casting and a demolding method, wherein an injection molding runner is formed by adopting a mode of assembling and closing a plurality of groups of die plates, and meanwhile, a rotatable pressing structure is matched, so that the effects of pressing a closed runner and rotating demolding are realized, and finally, the effect of rapid demolding is realized under the matched use of a jacking structure, so that the technical problem is solved.
The technical scheme for solving the technical problems is as follows: the demolding method of the mold pressing device for impeller casting is applied to the mold pressing device for impeller casting, and the mold pressing device comprises a processing pedestal: the bottom of processing pedestal inner chamber is fixedly mounted with the platform of moulding plastics, the inner chamber of processing pedestal is provided with the compound die subassembly, the top fixedly connected with support frame of processing pedestal, the inner chamber of support frame is provided with the pressfitting subassembly, the pressfitting subassembly includes the dwang that runs through to the support frame inner chamber from the support frame top, the dwang rotates with the support frame to be connected, the surface sliding connection of dwang has the sleeve pipe, the bottom fixedly connected with pressfitting seal dish of dwang, the rear side of support frame inner chamber rotates and is connected with first electric telescopic handle, the both sides of support frame inner chamber all weld the support arm, two the opposite one end rotation of support arm is connected with the deflection frame, the rear end of deflection frame rotates with the output of first electric telescopic handle to be connected, the top fixedly connected with two fixed disks of rotating sleeve pipe surface, the rear side of processing pedestal bottom is provided with the drawing of patterns subassembly, the drawing of patterns subassembly includes the second electric telescopic handle of fixedly connected with at processing pedestal bottom rear side, the bottom of processing pedestal is provided with the bearing bracket, the both sides of moulding plastics bench top all run through and are provided with the jack-post, the top of moulding plastics is provided with the wedge-shaped slide groove, the top of moulding plastics is provided with the wedge-shaped slide table top that runs through the top of the support frame, the top of moulding plastics is connected with the wedge-shaped slide table top, the top of moulding plastics is all the top of moulding plastics;
The demolding method of the mold pressing device for impeller casting comprises the following steps:
1. the method comprises the steps that a user starts a stepping motor, the stepping motor drives a worm to rotate through the cooperation of two bevel gears, the worm wheel drives a rotating disc to rotate through the meshing action of the worm and a worm wheel in the rotating process of the worm, the rotating disc extrudes a sliding pin through the inner wall of a wedge-shaped chute in the rotating process, the sliding pin drives a group template to slide at the top of a processing pedestal, the group templates are enabled to move in opposite directions at the same time, the ends of the group templates are enabled to be attached, and therefore an injection molding runner in the shape of an impeller is formed;
2. Then the first electric telescopic rod is started, the rear end of the deflection frame is pulled to rise upwards by the first electric telescopic rod, the deflection frame rotates by taking the connection position of the deflection frame and the rotating rod as a rotation center, so that the front end of the deflection frame pushes the fixed disc downwards, the rotating sleeve is further slid downwards, the pressing sealing disc is driven to be pressed on the top of the group of templates, a runner for injection molding of the impeller shape is sealed at the moment, fluid plasticizing materials are injected into the injection molding runner through the injection molding pipe, and the whole runner is filled with the materials;
3. After the plasticizing material in the runner is cooled, a user starts a third electric telescopic rod, the third electric telescopic rod pushes a pushing rack to slide on the front side of the positioning guide rail, the pushing rack drives a rotating rod to rotate through the meshing effect of the pushing rack and a stressed gear in the sliding process, the rotating rod drives a pressing sealing disc to rotate through a rotating sleeve in the rotating process, the bottom of the pressing sealing disc and the top of a formed impeller are thoroughly demolded, then the first electric telescopic rod is started again, the rear end of a deflection frame is pushed to move downwards, the deflection frame drives the rotating sleeve to ascend and reset through a fixed disc, then a stepping motor reversely rotates, and drives a worm and a worm wheel to reversely rotate through a bevel gear, so that the rotating disc drives a plurality of group modules to reset through the cooperation of a wedge-shaped sliding groove and a sliding pin, and the impeller is exposed at the top of the injection molding table;
4. Finally, the second electric telescopic rod is opened, the second electric telescopic rod pushes the inclined strut to slide to the rear side, the second electric telescopic rod extrudes the jacking column through the inner wall of the wedge-shaped sliding groove, the jacking column is jacked up upwards and compresses the spring, the jacking column is lifted from the inner cavity of the circular sliding hole, the impeller after injection molding is lifted, the bottom of the impeller is separated from contact with the top of the injection molding table, and the impeller can be rapidly demoulded.
Preferably, the die assembly comprises a rotating disc which is rotationally connected with an inner cavity of the processing pedestal, a plurality of slidable die assembly plates are annularly distributed at the top of the processing pedestal, a guide sleeve fixedly connected with the processing pedestal is sleeved on the surface of the die assembly plates, and the die assembly plates are slidably connected with the inner cavity of the guide sleeve.
Preferably, the bottom of the group of templates is fixedly connected with a sliding pin, a plurality of wedge-shaped sliding grooves are annularly distributed on the top of the inner cavity of the rotating disc, and the sliding pin is slidably connected with the inner cavity of the wedge-shaped sliding groove.
Preferably, the bottom fixedly connected with worm wheel on rolling disc surface, processing pedestal inner chamber left front end is connected with the worm through the bearing rotation, processing pedestal's right side fixed mounting has step motor, the right-hand member of worm and step motor's output shaft all fixedly connected with bevel gear, two bevel gears mesh mutually.
Preferably, the two sides of the front end of the deflection frame are both rotationally connected with pulleys, and the front end of the deflection frame penetrates between the two fixed discs and is in sliding connection with the surfaces of the fixed discs through the pulleys.
Preferably, the surface of the jacking column is sleeved with a spring, and the top end and the bottom end of the spring are welded with the injection molding table and the jacking column respectively.
Preferably, the rear side of processing pedestal bottom fixedly connected with two T shape guide rails, bracing frame sliding connection is at the surface of T shape guide rail.
Preferably, the rotating assembly comprises a positioning guide rail fixedly connected to the rear side of the top of the support frame, a pushing rack is slidably connected to the surface of the positioning guide rail, a stress gear is fixedly connected to the top of the surface of the rotating rod, and the stress gear is meshed with the pushing rack.
Preferably, a third electric telescopic rod is fixedly arranged on the left side of the top of the support frame, and the output end of the third electric telescopic rod is fixedly connected with the left side of the pushing rack.
Preferably, the both sides of uide bushing inner chamber are all fixedly connected with spacing guide rail, spacing spout with spacing guide rail looks adaptation has all been seted up to two sides of group's template.
The beneficial effects of the invention are as follows: according to the invention, the impeller-shaped injection molding runner is formed through the matched use of the processing pedestal and the mold clamping assembly, then the injection molding runner is sealed through the matched use of the supporting frame and the pressing assembly, and finally the injection molded impeller is ejected and demolded through the matched use of the demolding assembly and the rotating assembly after injection molding is finished, so that the purposes of thorough runner sealing, rapid injection molding runner combination and stable and rapid demolding can be achieved.
Drawings
The foregoing and/or other advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative only and not limiting of the invention, wherein:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a perspective exploded view of a tooling block, clamp assembly and press assembly according to one embodiment of the present invention;
FIG. 3 is a perspective exploded view of a clamp assembly according to one embodiment of the present invention;
FIG. 4 is a schematic perspective view of a tooling block, injection molding block and injection molded tube according to one embodiment of the present invention;
FIG. 5 is a partial enlarged view of the point A in FIG. 4 according to an embodiment of the present invention;
FIG. 6 is a schematic perspective view of a tooling block, injection molding block and stripper unit according to one embodiment of the present invention;
FIG. 7 is a partial enlarged view of the point B in FIG. 6 according to an embodiment of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. The device comprises a processing pedestal, 2, an injection molding table, 3, a mold clamping assembly, 31, a rotating disc, 32, a group template, 33, a guide sleeve, 34, a sliding pin, 35, a wedge-shaped chute, 36, a worm wheel, 37, a worm, 38, a stepping motor, 39, a bevel gear, 4, a supporting frame, 5, a pressing assembly, 51, a rotating rod, 52, a rotating sleeve, 53, a pressing sealing disc, 54, a first electric telescopic rod, 55, a deflection frame, 56, a supporting arm, 57, a fixed disc, 6, a demolding assembly, 61, a second electric telescopic rod, 62, a diagonal bracket, 63, a T-shaped guide rail, 64, a jacking column, 65, a circular sliding hole, 66, a wedge-shaped chute, 67, a spring, 7, an injection molding pipe, 8, a limit guide rail, 9, a rotating assembly, 91, a positioning guide rail, 92, a stress gear, 93, a pushing rack, 94, a third electric telescopic rod, 10 and a limit chute.
Detailed Description
Hereinafter, embodiments of a mold pressing device for impeller casting and a demolding method of the present invention will be described with reference to the drawings.
The examples described herein are specific embodiments of the present application, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the application to the embodiments and scope of the application. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification, including those adopting any obvious substitutions and modifications to the embodiments described herein.
The drawings in the present specification are schematic views, which assist in explaining the concept of the present invention, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structures of the components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
Example 1
Fig. 1 to 7 show a demolding method of a mold press-fitting device for impeller casting according to an embodiment of the present invention, which is applied to a mold press-fitting device for impeller casting, the device comprising a processing pedestal 1: the bottom of the inner cavity of the processing pedestal 1 is fixedly provided with an injection molding table 2, the inner cavity of the processing pedestal 1 is provided with a die assembly 3, the top of the processing pedestal 1 is fixedly connected with a support frame 4, the inner cavity of the support frame 4 is provided with a pressing assembly 5, the pressing assembly 5 comprises a rotating rod 51 penetrating through the inner cavity of the support frame 4 from the top of the support frame 4, the rotating rod 51 is rotationally connected with the support frame 4, the surface of the rotating rod 51 is slidingly connected with a rotating sleeve 52, the bottom of the rotating sleeve 52 is fixedly connected with a pressing sealing disc 53, the rear side of the inner cavity of the support frame 4 is rotationally connected with a first electric telescopic rod 54, two sides of the inner cavity of the support frame 4 are welded with supporting arms 56, one ends of the two opposite supporting arms 56 are rotationally connected with a deflection frame 55, two sides of the front end of the deflection frame 55 are rotationally connected with pulleys, the front end of the deflection frame 55 penetrates between the two fixing discs 57 and is slidingly connected with the surface of the fixing disc 57 through the pulleys, the rear end of the deflection frame 55 is rotationally connected with the output end of the first electric telescopic rod 54, the top of the surface of the rotating sleeve 52 is fixedly connected with two fixing discs 57, the rear side of the bottom of the processing pedestal 1 is provided with a demoulding assembly 6, the demoulding assembly 6 comprises a second electric telescopic rod 61 fixedly connected with the rear side of the bottom of the processing pedestal 1, the bottom of the processing pedestal 1 is provided with an inclined strut 62, the rear side of the bottom of the processing pedestal 1 is fixedly connected with two T-shaped guide rails 63, the inclined strut 62 is slidingly connected with the surface of the T-shaped guide rails 63, two sides of the top of the injection molding pedestal 2 are respectively penetrated and provided with a jacking column 64, the surface of the jacking column 64 is sleeved with a spring 67, the top end and the bottom end of the spring 67 are respectively welded with the injection molding pedestal 2 and the jacking column 64, the jacking column 64 is elastically pushed by the arrangement of the spring 67, and the jacking column 64 can be positively reset after demoulding, when the secondary demoulding operation is performed, round sliding holes 65 matched with the jacking columns 64 are formed in two sides of the top of the injection molding table 2, wedge-shaped sliding grooves 66 are formed in the back surface of the front surface of the diagonal bracing frame 62, the bottom ends of the jacking columns 64 are slidably connected to the inner cavities of the wedge-shaped sliding grooves 66, an injection molding pipe 7 penetrates through the bottom of the injection molding table 2, the top ends of the injection molding pipe 7 penetrate to the top of the injection molding table 2, and a rotating assembly 9 is arranged at the top of the supporting frame 4;
The demolding method of the mold pressing device for impeller casting comprises the following steps:
1. Firstly, a user starts a stepping motor 38, the stepping motor 38 drives a worm 37 to rotate through the cooperation of two bevel gears 39, in the process of rotating the worm 37, the worm wheel 36 drives a rotating disc 31 to rotate through the meshing action of the worm 37 and a worm wheel 36, the rotating disc 31 extrudes a sliding pin 34 through the inner wall of a wedge-shaped chute 35 in the rotating process, the sliding pin 34 drives a group template 32 to slide on the top of a processing pedestal 1, and then the group templates 32 simultaneously move in opposite directions, and the ends of the group templates 32 are attached, so that an impeller-shaped injection runner is formed;
2. then the first electric telescopic rod 54 is started, the rear end of the deflection frame 55 is pulled by the first electric telescopic rod 54 to rise upwards, the deflection frame 55 rotates by taking the connection position of the deflection frame and the rotating rod 51 as a rotation center, the front end of the deflection frame 55 pushes the fixed disc 57 downwards, the rotating sleeve 52 slides downwards, the pressing sealing disc 53 is driven to press on the top of the group of templates 32, at the moment, a runner for injection molding of impeller shapes is closed, and then fluid plasticizing material is injected into the injection runner through the injection molding pipe 7, and the whole runner is filled with the material;
3. After the plasticized material in the runner is cooled, a user starts a third electric telescopic rod 94, the third electric telescopic rod 94 pushes a pushing rack 93 to slide on the front side of a positioning guide rail 91, the pushing rack 93 drives a rotating rod 51 to rotate under the meshing action of the pushing rack 93 and a stressed gear 92 in the sliding process, the rotating rod 51 drives a pressing sealing disc 53 to rotate through a rotating sleeve 52 in the rotating process, the bottom of the pressing sealing disc 53 is thoroughly demolded from the top of a formed impeller, then the first electric telescopic rod 54 is started again, the rear end of a deflection frame 55 is pushed to move downwards, the deflection frame 55 drives the rotating sleeve 52 to ascend and reset through a fixed disc 57, then a stepping motor 38 reversely rotates, a worm 37 and a worm wheel 36 are driven to reversely rotate through a bevel gear 39, the rotating disc 31 drives a plurality of group templates 32 to reset through the matching use of a wedge-shaped sliding groove 35 and a sliding pin 34, and the impeller is exposed at the top of an injection molding table 2;
4. Finally, the second electric telescopic rod 61 is opened, the second electric telescopic rod 61 pushes the inclined strut 62 to slide to the rear side, the second electric telescopic rod 61 extrudes the jacking column 64 through the inner wall of the wedge-shaped chute 66, the jacking column 64 jacks up and compresses the spring 67, the jacking column 64 lifts up from the inner cavity of the circular sliding hole 65, the injection-molded impeller is lifted up, the bottom of the impeller is separated from the top of the injection molding table 2, and the impeller can be rapidly demoulded.
Example two
Referring to fig. 1, substantially the same as the first embodiment, further: the compound die assembly 3 comprises a rotating disc 31 which is rotationally connected with the inner cavity of the processing pedestal 1, a plurality of slidable compound templates 32 are annularly distributed at the top of the processing pedestal 1, a guide sleeve 33 which is fixedly connected with the processing pedestal 1 is sleeved on the surface of the compound templates 32, limit guide rails 8 are fixedly connected with the two sides of the inner cavity of the guide sleeve 33, limit sliding grooves 10 which are matched with the limit guide rails 8 are formed in the two sides of the compound templates 32, the compound templates 32 are slidably connected with the inner cavity of the guide sleeve 33, sliding pins 34 are fixedly connected with the bottom of the compound templates 32, a plurality of wedge sliding grooves 35 are annularly distributed at the top of the inner cavity of the rotating disc 31, the sliding pins 34 are slidably connected with the inner cavity of the wedge sliding grooves 35, a worm wheel 36 is fixedly connected with the bottom of the surface of the rotating disc 31, a worm 37 is rotatably connected with the front end of the inner cavity of the processing pedestal 1 through a bearing, a step motor 38 is fixedly connected with a right end 39 of the worm 37, the bevel gears 39 are meshed with the bevel gears 39 of the two bevel gears 39, and the set of the compound templates 3 are arranged through the arrangement of the assembly 3, the impeller-shaped worm wheel runner is formed, and then the worm wheel-shaped worm wheel is in the shape, and the worm wheel is in the shape of the wedge sliding grooves 35 and can be driven to rotate simultaneously, and the wedge sliding grooves 35 are driven to rotate, and the compound die assembly is made to rotate, and can be matched with the wedge sliding grooves 35 and can rotate and can be driven.
Example III
Referring to fig. 1, substantially the same as the first embodiment, further: the rotating assembly 9 comprises a positioning guide rail 91 fixedly connected to the rear side of the top of the support frame 4, a pushing rack 93 is slidably connected to the surface of the positioning guide rail 91, a stress gear 92 is fixedly connected to the top of the surface of the rotating rod 51, the stress gear 92 is meshed with the pushing rack 93, a third electric telescopic rod 94 is fixedly arranged on the left side of the top of the support frame 4, the output end of the third electric telescopic rod 94 is fixedly connected with the left side of the pushing rack 93, the pushing rack 93 is pushed through the arrangement of the rotating assembly 9, the positioning guide rail 91 and the third electric telescopic rod 94 are matched, meanwhile, the pushing rack 93 and the stress gear 92 are matched, the rotating rod 51 and the rotating sleeve 52 rotate, the pressing sealing disc 53 can rotate, the bottom of the pressing sealing disc 53 can be separated from an impeller subjected to injection molding, and accordingly adhesion between the pressing sealing disc 53 and the impeller is avoided.
To sum up: according to the mold pressing device and the demolding method for impeller casting, the impeller-shaped injection runner is formed through the matched use of the processing pedestal 1 and the mold clamping assembly 3, then the injection runner is sealed through the matched use of the supporting frame 4 and the pressing assembly 5, and finally the injection runner is ejected and demolded through the matched use of the demolding assembly 6 and the rotating assembly 9 after injection molding is finished, so that the purposes of thorough runner sealing, rapid injection runner combination and stable and rapid demolding can be achieved.
The above disclosed features are not limited to the disclosed combinations with other features, and other combinations between features can be made by those skilled in the art according to the purpose of the invention to achieve the purpose of the invention.
Claims (10)
1. The demolding method of the die pressing device for impeller casting is applied to the die pressing device for impeller casting, and is characterized in that the device comprises a processing pedestal (1): the bottom of processing pedestal (1) inner chamber fixed mounting has platform (2) of moulding plastics, the inner chamber of processing pedestal (1) is provided with compound die subassembly (3), the top fixedly connected with support frame (4) of processing pedestal (1), the inner chamber of support frame (4) is provided with pressfitting subassembly (5), pressfitting subassembly (5) include from support frame (4) top run through dwang (51) to support frame (4) inner chamber, dwang (51) are connected with support frame (4) rotation, the surface sliding connection of dwang (51) has rotation sleeve (52), the bottom fixedly connected with pressfitting sealing disc (53) of rotation sleeve (52), the rear side of support frame (4) inner chamber rotates and is connected with first electric telescopic handle (54), the both sides of support frame (4) inner chamber all weld support arm (56), two the relative one end rotation of support arm (56) be connected with deflection frame (55), the rear end of deflection frame (55) rotates with the output of first electric telescopic handle (54) to be connected with, the surface sliding connection of rotation sleeve (52) has platform (6) fixed connection of two bottom (6) of pedestal (6), the demolding assembly (6) comprises a second electric telescopic rod (61) fixedly connected to the rear side of the bottom of the machining pedestal (1), a diagonal bracing frame (62) is arranged at the bottom of the machining pedestal (1), a jack post (64) is arranged on two sides of the top of the injection molding table (2) in a penetrating mode, round sliding holes (65) matched with the jack post (64) are formed in two sides of the top of the injection molding table (2), wedge-shaped sliding grooves (66) are formed in the back surface of the front surface of the diagonal bracing frame (62), the bottom end of the jack post (64) is slidably connected to the inner cavity of the wedge-shaped sliding grooves (66), an injection molding pipe (7) is arranged at the bottom of the injection molding table (2) in a penetrating mode, the top of the injection molding pipe (7) penetrates to the top of the injection molding table (2), and a rotating assembly (9) is arranged at the top of the supporting frame (4);
The demolding method of the mold pressing device for impeller casting comprises the following steps:
1. Firstly, a user starts a stepping motor (38), the stepping motor (38) drives a worm (37) to rotate through the cooperation of two bevel gears (39), in the rotating process of the worm (37), the worm wheel (36) drives a rotating disc (31) to rotate through the meshing action of the worm (37) and a worm wheel (36), the rotating disc (31) extrudes a sliding pin (34) through the inner wall of a wedge-shaped chute (35) in the rotating process, the sliding pin (34) drives a group template (32) to slide at the top of a processing pedestal (1), and then the group templates (32) move in opposite directions at the same time, and the ends of the group templates (32) are attached, so that an impeller-shaped injection runner is formed;
2. Then the first electric telescopic rod (54) is started, the rear end of the deflection frame (55) is pulled by the first electric telescopic rod (54) to rise upwards, the deflection frame (55) rotates by taking the connection position of the deflection frame and the rotating rod (51) as a rotation center, the front end of the deflection frame (55) pushes the fixed disc (57) downwards, the rotating sleeve (52) slides downwards, the pressing sealing disc (53) is driven to press on the top of the group template (32), a runner for injection molding in the shape of an impeller is closed at the moment, fluid plasticizing material is injected into the injection molding runner through the injection molding pipe (7), and the whole runner is filled with the material;
3. After the plasticized material in the runner is cooled, a user starts a third electric telescopic rod (94), the third electric telescopic rod (94) pushes a pushing rack (93) to slide on the front side of a positioning guide rail (91), the pushing rack (93) drives a rotating rod (51) to rotate through the meshing effect of the pushing rack and a stressed gear (92) in the sliding process, the rotating rod (51) drives a pressing sealing disc (53) to rotate through a rotating sleeve (52) in the rotating process, the bottom of the pressing sealing disc (53) and the top of a formed impeller are thoroughly demolded, then a first electric telescopic rod (54) is started again, the rear end of a deflection frame (55) is pushed to move downwards, the deflection frame (55) drives the rotating sleeve (52) to ascend and reset through a fixed disc (57), then a stepping motor (38) reversely rotates, a worm (37) and a sliding pin (36) are driven to reversely rotate through a bevel gear (39), the rotating disc (31) drives a plurality of worm wheel groups (32) to reset through the matched use of the wedge-shaped sliding grooves (35) and sliding pins (34), and the top of the worm wheel groups (32) are driven to reset at the moment, and the top of the worm wheel groups (32) is exposed on the top of an injection molding table (2);
4. Finally, the second electric telescopic rod (61) is opened, the second electric telescopic rod (61) pushes the inclined strut (62) to slide to the rear side, the second electric telescopic rod (61) extrudes the jacking column (64) through the inner wall of the wedge-shaped chute (66), the jacking column (64) is jacked up, the spring (67) is compressed, the jacking column (64) is lifted from the inner cavity of the circular sliding hole (65), the injection-molded impeller is lifted, the bottom of the impeller is separated from the top of the injection molding table (2), and the impeller can be rapidly demoulded.
2. The demolding method of the mold pressing device for impeller casting according to claim 1, wherein the mold clamping assembly (3) comprises a rotating disc (31) rotatably connected to an inner cavity of the processing pedestal (1), a plurality of slidable group mold plates (32) are annularly distributed on the top of the processing pedestal (1), a guide sleeve (33) fixedly connected with the processing pedestal (1) is sleeved on the surface of the group mold plates (32), and the group mold plates (32) are slidably connected to the inner cavity of the guide sleeve (33).
3. The demolding method of the mold pressing device for impeller casting according to claim 2, wherein a sliding pin (34) is fixedly connected to the bottom of the group of mold plates (32), a plurality of wedge-shaped sliding grooves (35) are annularly distributed on the top of the inner cavity of the rotating disc (31), and the sliding pin (34) is slidably connected to the inner cavity of the wedge-shaped sliding grooves (35).
4. The demolding method of the mold pressing device for impeller casting according to claim 3, wherein a worm wheel (36) is fixedly connected to the bottom of the surface of the rotating disc (31), a worm (37) is rotatably connected to the front end of the left side of the inner cavity of the processing pedestal (1) through a bearing, a stepping motor (38) is fixedly installed on the right side of the processing pedestal (1), bevel gears (39) are fixedly connected to the right end of the worm (37) and the output shaft of the stepping motor (38), and the two bevel gears (39) are meshed.
5. The method for demolding a mold pressing device for casting impellers according to claim 4, wherein both sides of the front end of the deflection frame (55) are rotatably connected with pulleys, and the front end of the deflection frame (55) penetrates between two fixed disks (57) and is slidably connected with the surfaces of the fixed disks (57) through the pulleys.
6. The demolding method of the mold pressing device for impeller casting according to claim 5, wherein springs (67) are sleeved on the surface of the jacking column (64), and the top end and the bottom end of the springs (67) are welded with the injection molding table (2) and the jacking column (64) respectively.
7. The demolding method of the mold pressing device for impeller casting according to claim 6, wherein two T-shaped guide rails (63) are fixedly connected to the rear side of the bottom of the processing pedestal (1), and the diagonal brace (62) is slidably connected to the surface of the T-shaped guide rails (63).
8. The demolding method of the mold pressing device for impeller casting according to claim 7, wherein the rotating assembly (9) comprises a positioning guide rail (91) fixedly connected to the rear side of the top of the supporting frame (4), a pushing rack (93) is slidably connected to the surface of the positioning guide rail (91), a force bearing gear (92) is fixedly connected to the top of the surface of the rotating rod (51), and the force bearing gear (92) is meshed with the pushing rack (93).
9. The demolding method of the mold pressing device for impeller casting according to claim 8, wherein a third electric telescopic rod (94) is fixedly arranged on the left side of the top of the supporting frame (4), and the output end of the third electric telescopic rod (94) is fixedly connected with the left side of the pushing rack (93).
10. The demolding method of the mold pressing device for impeller casting according to claim 9, wherein limiting guide rails (8) are fixedly connected to two sides of an inner cavity of the guide sleeve (33), and limiting sliding grooves (10) matched with the limiting guide rails (8) are formed in two side surfaces of the group of mold plates (32).
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| JP2002086527A (en) * | 2000-02-21 | 2002-03-26 | Ube Machinery Corporation Ltd | Mold clamping device and mold release method |
| EP3267041A1 (en) * | 2016-07-06 | 2018-01-10 | Wilo Se | Method and tool for producing an impeller |
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| CN117900416B (en) | 2024-07-02 |
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Denomination of invention: A mold pressing device and demolding method for impeller casting Granted publication date: 20240702 Pledgee: Shandong Yutai Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG WUZIXING MINING EQUIPMENT Co.,Ltd. Registration number: Y2024980032536 |
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