CN111152414A - Alloy injection mold for spherical annular shell - Google Patents
Alloy injection mold for spherical annular shell Download PDFInfo
- Publication number
- CN111152414A CN111152414A CN202010049760.7A CN202010049760A CN111152414A CN 111152414 A CN111152414 A CN 111152414A CN 202010049760 A CN202010049760 A CN 202010049760A CN 111152414 A CN111152414 A CN 111152414A
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- shaped
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- spherical
- mold
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- 238000002347 injection Methods 0.000 title claims abstract description 69
- 239000007924 injection Substances 0.000 title claims abstract description 69
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 17
- 239000000956 alloy Substances 0.000 title claims abstract description 17
- 238000001746 injection moulding Methods 0.000 claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 20
- 229920003023 plastic Polymers 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 8
- 102220259718 rs34120878 Human genes 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000003292 glue Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 3
- 229910001214 P-type tool steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an alloy injection mold for a spherical annular shell, which comprises a fixed mold core and a movable mold core, wherein the upper surface of the fixed mold core is provided with a lower runner groove, two lower semicircular grooves and two lower spherical ring grooves which are parallel, the lower surface of the movable mold core is provided with an upper runner groove, a square groove, two upper semicircular grooves and two upper spherical ring grooves which are parallel, the upper half part and the lower half part of a rod-shaped mold core are respectively in sliding fit with the upper semicircular groove and the lower semicircular groove, and the injection mold cavity of the spherical annular shell is formed by the rod-shaped mold core, the upper spherical ring groove of the movable mold core, the lower spherical ring groove of the fixed mold core, the spherical groove of a left insert and. The rod-shaped mold core, the upper ball ring groove of the movable mold core, the lower ball ring groove of the fixed mold core, the spherical groove of the left insert and the spherical groove of the right insert form an injection molding mold cavity of the spherical annular shell, the rod-shaped mold core and the upper ball ring groove of the movable mold core are suitable for batch injection molding production of the spherical annular shell serving as window ornaments, and the production efficiency and the injection molding quality of the spherical annular shell of the window are ensured.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an alloy injection mold for a spherical annular shell.
Background
The injection mold is used for producing products or parts with various shapes, and particularly relates to a method for producing a final formed product by injecting heated and melted plastic into a mold cavity under high pressure and cooling and solidifying the plastic. Some injection molded products are provided with inserts, such as metal sheets, in the injection mold to form a composite of metal and plastic. The concrete structure of plastic mould can divide into according to the function: the device comprises a pouring system, a temperature adjusting system, a formed part system, an exhaust system, a guide system, an ejection system and the like. The molding part system is a part which is in direct contact with plastics and changes along with the plastic products, and the material selection of a mold cavity and a mold core of the molding part system and the processing smoothness and precision of the molding part system have great influence on the injection molding quality of the plastic products and the service performance of the mold.
The Chinese patent application with the prior publication number of CN106273257B discloses an injection mold, which comprises an upper mold, a lower mold, a glue feeding mechanism and a material ejecting mechanism, wherein the upper mold comprises an upper mold base and an upper mold core arranged on the upper mold base, the lower mold comprises a lower mold base and a lower mold core arranged on the lower mold base, the upper mold core is matched with the lower mold core to form a mold cavity, the glue feeding mechanism comprises a wedge block, a glue feeding slide block and an inclined pin, the wedge block is fixed on the upper mold base, the glue feeding slide block is arranged on the lower mold core in a sliding way and matched with the inclined surface of the wedge block, one end of the glue feeding slide block facing the mold cavity is provided with a glue feeding port to facilitate the glue feeding slide block to inject molten plastic into the mold cavity, the inclined pin can movably penetrate through the wedge block and the glue feeding slide block, the upper mold base can drive the wedge block and the inclined pin to move away from the lower mold base, the glue, the injection mold is used for ejecting a formed workpiece out of the mold cavity, and the appearance quality of the injection-molded workpiece is effectively improved.
The above prior art solutions have the following drawbacks: although the appearance quality of the injection molding workpiece is improved, the injection mold is only suitable for injection molding of large-size injection molding parts and is not suitable for mass production of special-shaped structures or small injection molding parts. Therefore, for the injection molding process of the spherical annular housing applied to the field of window ornaments, it is necessary to design and develop an alloy injection mold for the spherical annular housing.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an alloy injection mold for a spherical annular shell, wherein an injection mold cavity of the spherical annular shell is formed by a rod-shaped mold core, an upper spherical ring groove of a movable mold core, a lower spherical ring groove of a fixed mold core, a spherical groove of a left insert and a spherical groove of a right insert, and the alloy injection mold is suitable for batch injection production of the spherical annular shell serving as a window ornament, so that the production efficiency and the injection quality of the spherical annular shell of a window are ensured.
The above object of the present invention is achieved by the following technical solutions:
an alloy injection mold for a spherical annular shell comprises a movable mold plate and a fixed mold plate, wherein a movable mold core mounting hole, an upper injection through hole and a pressing block groove are formed in the movable mold plate, the upper injection through hole and the pressing block groove are respectively communicated with two side edges of the movable mold core mounting hole, a fixed mold core mounting hole, a lower injection through hole and a square sliding groove are formed in the fixed mold plate, the lower injection through hole and the square sliding groove are respectively communicated with two side edges of the fixed mold core mounting hole, the fixed mold core mounting hole and the movable mold core mounting hole are respectively internally provided with a corresponding fixed mold core and a corresponding movable mold core, a lower runner groove, two parallel lower semicircular grooves and a lower spherical annular groove are formed in the upper surface of the fixed mold core, two ends of the lower runner groove are respectively communicated with the two parallel lower semicircular grooves, the middle part of the lower runner groove is communicated with the lower injection through hole, and the left side, the lower semicircular groove penetrates through the front end and the rear end of the lower spherical ring groove, the front end of the lower semicircular groove is communicated with the lower runner groove, and the rear end of the lower semicircular groove is communicated with the square sliding groove; the lower surface of the movable die core is provided with an upper runner groove, a square groove, two upper semicircular grooves and upper ball ring grooves which are parallel, two ends of the upper runner groove are respectively communicated with the two upper semicircular grooves which are parallel, the middle part of the upper runner groove is communicated with the upper injection through hole, the square groove penetrates through the left side and the right side of the two upper ball ring grooves, the upper semicircular grooves penetrate through the front end and the rear end of the lower ball ring groove, the front end of the upper semicircular groove is communicated with the upper runner groove, and the rear end of the upper semicircular groove is communicated with the briquetting groove; a left insert and a right insert are respectively matched in the T-shaped inclined holes on the left side and the right side of the lower sphere ring groove in an inclined way, the lower ends of the left insert and the right insert are movably connected with guide rods, the upper ends of the left insert and the right insert are matched with a square groove, and the inner side walls of the left insert and the right insert are respectively provided with a spherical groove; the square chute is provided with a step-shaped sliding block in sliding fit, the upper part of the step-shaped sliding block is a step part matched with the pressing block groove, the lower part of the step-shaped sliding block is a sliding part in sliding fit with the square chute, the outer wall of the rear side of the step part and the inner wall of the rear side of the pressing block groove are inclined planes matched with the inclined planes, the front end of the step-shaped sliding block is fixedly connected with two rod-shaped mold cores, the upper half part and the lower half part of each rod-shaped mold core are respectively in sliding fit with the upper semicircular groove and the lower semicircular groove, and the rod-shaped mold cores, the upper sphere ring groove of the movable mold core, the lower sphere ring groove of the fixed mold core.
By adopting the technical scheme, when the movable mould plate and the fixed mould plate are matched, the movable mould plate moves along the direction close to the fixed mould plate, the step part at the upper part of the step-shaped slide block is matched with the inclined plane of the pressing block groove, the sliding part at the lower part of the step-shaped slide block is matched with the square sliding groove in a sliding way, and the movable mould plate drives the step-shaped slide block to slide forwards along the square sliding groove and drives the two rod-shaped mould cores to move forwards to the injection mould cavity along the upper semicircular groove and the lower semicircular; the upper ends of the left insert and the right insert are matched with the square groove, the left insert and the right insert are respectively matched with the T-shaped inclined holes on the left side and the right side of the lower spherical ring groove in an inclined plane, the left insert and the right insert slide downwards along the T-shaped inclined holes respectively until the spherical grooves on the left insert and the right insert move to the injection molding die cavity, and the rod-shaped die core, the upper spherical ring groove of the movable die core, the lower spherical ring groove of the fixed die core, the spherical groove of the left insert and the spherical groove of the right insert form the injection molding die cavity of the spherical annular shell; the molten plastic enters an injection molding cavity from a flow channel formed by the upper runner groove and the lower runner groove, and the molten plastic is condensed in the injection molding cavity to form an injection molding part of the spherical annular shell; when the mold is opened between the movable mold plate and the fixed mold plate, the movable mold plate moves along the direction far away from the fixed mold plate, the step-shaped slide block slides backwards along the square chute, the step-shaped slide block drives the two rod-shaped mold cores to separate from the injection mold cavity, the left insert and the right insert respectively slide upwards along the T-shaped inclined holes, the spherical grooves in the left insert and the right insert separate from the injection mold cavity, and then injection molded parts of the two spherical annular shells after injection molding can be taken out. The injection mold is suitable for batch injection molding production of the spherical annular shell serving as the window ornament, and the production efficiency and the injection molding quality of the injection molded part of the spherical annular shell are guaranteed.
The present invention in a preferred example may be further configured to: the left insert and the right insert are provided with oblique guide blocks matched with the T-shaped oblique holes in an inclined way on the front side wall and the rear side wall of the lower portion of the left insert and the right insert, the oblique guide blocks are gradually close to the injection molding cavity from the upper end to the lower end in the inclined direction, the left insert and the oblique guide blocks on the front side wall and the rear side wall of the left insert are located on the same inclined plane in a mode that the side walls of the left insert and the oblique guide blocks on the front side wall and the rear side wall of the left insert are back to the injection molding cavity.
By adopting the technical scheme, the left insert and the inclined guide block on the side wall of the left insert form a T-shaped structure and can slide up and down along the T-shaped inclined hole, the right insert and the inclined guide block on the side wall of the right insert form a T-shaped structure and can slide up and down along the T-shaped inclined hole, when the left insert and the right insert slide to the highest position of the T-shaped inclined hole, the spherical grooves on the left insert and the right insert are completely separated from the injection molding die cavity, and when the left insert and the right insert slide to the lowest position of the T-shaped inclined hole, the spherical grooves on the left insert and the right insert.
The present invention in a preferred example may be further configured to: the left insert and the right insert are provided with T-shaped bayonets at the lower ends, the upper end of the guide rod is provided with a T-shaped clamping block in clamping connection with the T-shaped bayonets, the guide rod is sleeved with a return spring, the upper end of the return spring is propped against the left insert or the right insert, and the lower end of the return spring is pressed on the fixed die core.
By adopting the technical scheme, the T-shaped bayonets at the lower ends of the left insert and the right insert are connected with the T-shaped clamping blocks at the upper ends of the guide rods in a clamping manner, so that the disassembly and the assembly are more convenient, and the guide rods, the left insert and the right insert can slide and move mutually; when the die is opened between the movable die plate and the fixed die plate, the left insert and the right insert are under the tension action of the return spring, and the left insert and the right insert respectively move upwards along the T-shaped inclined hole, so that the left insert, the right insert and the injection molding part of the spherical annular shell are separated from each other.
The present invention in a preferred example may be further configured to: and round salient points are distributed on the spherical grooves of the upper spherical annular groove of the movable mould core, the lower spherical annular groove of the fixed mould core, the left insert and the right insert.
Through adopting above-mentioned technical scheme, it has the round concave groove of circle bump in order to form ball annular shell surface to distribute in the injection molding die cavity.
The present invention in a preferred example may be further configured to: and two ends of the upper sphere ring groove of the movable mould core and the lower sphere ring groove of the fixed mould core are respectively provided with corresponding step grooves.
By adopting the technical scheme, the two ends of the upper spherical ring groove and the lower spherical ring groove are provided with corresponding step grooves to form the step grooves at the two ends of the spherical annular shell.
The present invention in a preferred example may be further configured to: the four corners of the fixed die core are respectively provided with a positioning lug, and the four corners of the movable die core are respectively provided with a positioning groove corresponding to the positioning lug.
By adopting the technical scheme, the positioning lug is in guide fit with the positioning groove, and the size and position accuracy of the injection molding piece of the spherical annular shell are guaranteed when the die assembly or die opening is carried out on the fixed die core and the movable die core.
The present invention in a preferred example may be further configured to: the step-shaped sliding block is characterized in that a return spring is connected between the step-shaped sliding block and the fixed die plate, the step portion is flush with the outer wall of the front side of the sliding portion, the outer wall of the rear side of the step portion is located on the front side of the sliding portion, the height of the sliding portion is the same as the depth of the square sliding groove, and the height of the step portion is the same as the depth of the pressing block groove.
Through adopting above-mentioned technical scheme, the rear side inner wall in the briquetting groove of movable mould board and the rear side outer wall inclined plane cooperation of step portion during the compound die, the movable mould board of lapse drives the sliding part and slides along square spout forward, breaks away from gradually between the rear side inner wall in the briquetting groove of movable mould board and the rear side outer wall of step portion during the die sinking, and step form slider receives reset spring's pulling force effect, and the sliding part moves backward along square spout, breaks away from completely with the injection molding of ball annular shell body until shaft-like mold core.
The present invention in a preferred example may be further configured to: the material of the fixed mold core and the movable mold core is selected from plastic mold steel, P20 steel or S55C steel, and the material of the rod-shaped mold core is selected from NAK80 steel, S136 steel or H13 steel.
By adopting the technical scheme, the plastic die steel, the P20 steel or the S55C steel are all steels with high mirror polishing performance, and are suitable for being processed and manufactured into the fixed die core and the movable die core of the injection die; NAK80 steel, S136 steel or H13 steel are all steels with high wear resistance, high hot tensile strength and high toughness, are suitable for being processed and manufactured into a mold core, and alloy steel adopted by the injection mold is suitable for manufacturing injection molding parts of the spherical annular shell.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the movable mould plate and the fixed mould plate are matched, the movable mould plate moves along the direction close to the fixed mould plate, the step part at the upper part of the step-shaped slide block is matched with the inclined plane of the pressing block groove, the sliding part at the lower part of the step-shaped slide block is matched with the square sliding groove in a sliding way, and the movable mould plate drives the step-shaped slide block to slide forwards along the square sliding groove and drives the two rod-shaped mould cores to move forwards to the injection mould cavity along the upper semicircular groove and the lower semicircular groove; the upper ends of the left insert and the right insert are matched with the square groove, the left insert and the right insert are respectively matched with the T-shaped inclined holes on the left side and the right side of the lower spherical ring groove in an inclined plane, the left insert and the right insert slide downwards along the T-shaped inclined holes respectively until the spherical grooves on the left insert and the right insert move to the injection molding die cavity, and the rod-shaped die core, the upper spherical ring groove of the movable die core, the lower spherical ring groove of the fixed die core, the spherical groove of the left insert and the spherical groove of the right insert form the injection molding die cavity of the spherical annular shell; the molten plastic enters an injection molding cavity from a flow channel formed by the upper runner groove and the lower runner groove, and the molten plastic is condensed in the injection molding cavity to form an injection molding part of the spherical annular shell; when the mold is opened between the movable mold plate and the fixed mold plate, the movable mold plate moves along the direction far away from the fixed mold plate, the step-shaped slide block slides backwards along the square chute, the step-shaped slide block drives the two rod-shaped mold cores to separate from the injection mold cavity, the left insert and the right insert respectively slide upwards along the T-shaped inclined holes, the spherical grooves in the left insert and the right insert separate from the injection mold cavity, and then injection molded parts of the two spherical annular shells after injection molding can be taken out. The injection mold is suitable for batch injection molding production of the spherical annular shell serving as the window ornament, and the production efficiency and the injection quality of the injection molded part of the spherical annular shell are ensured;
2. the left insert and the inclined guide block on the side wall of the left insert form a T-shaped structure and can slide up and down along a T-shaped inclined hole, the right insert and the inclined guide block on the side wall of the right insert form a T-shaped structure and can slide up and down along the T-shaped inclined hole, when the left insert and the right insert slide to the highest position of the T-shaped inclined hole, the spherical grooves on the left insert and the right insert are completely separated from an injection molding die cavity, and when the left insert and the right insert slide to the lowest position of the T-shaped inclined hole, the spherical grooves on the left insert and the right insert move to the; the T-shaped bayonet at the lower ends of the left insert and the right insert is in buckled connection with the T-shaped clamping block at the upper end of the guide rod, so that the disassembly and the assembly are more convenient, and the guide rod, the left insert and the right insert can slide and displace mutually; when the die is opened between the movable die plate and the fixed die plate, the left insert and the right insert are under the tension action of the return spring, and the left insert and the right insert respectively move upwards along the T-shaped inclined hole, so that the left insert, the right insert and injection parts of the spherical annular shell are separated from each other;
3. the positioning lug is in guide fit with the positioning groove, and the size and position accuracy of an injection molding piece of the spherical annular shell are guaranteed when the fixed mold core and the movable mold core are matched or opened; the rear inner wall of the pressing block groove of the movable template is matched with the rear outer wall of the step part in an inclined plane mode during die assembly, the movable template moving downwards drives the sliding part to slide forwards along the square sliding groove, the rear inner wall of the pressing block groove of the movable template is gradually separated from the rear outer wall of the step part during die opening, the step-shaped sliding block is under the tensile force action of the reset spring, and the sliding part moves backwards along the square sliding groove until the rod-shaped die core is completely separated from the injection molding part of the spherical annular shell.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the installation of the moving die plate of the present invention.
Fig. 3 is a schematic view of the installation of the stationary platen of the present invention.
FIG. 4 is a schematic diagram of the structure of the left insert or the right insert of the present invention.
In the figure, 1, a movable template; 11. a movable mould core mounting hole; 12. an upper injection through hole; 13. a block pressing groove; 131. a rear inner wall; 2. fixing a template; 21. a fixed die core mounting hole; 22. a lower injection through hole; 23. a square chute; 3. fixing a mold core; 31. a lower runner groove; 32. a lower semicircular groove; 33. a lower sphere ring groove; 34. t-shaped inclined holes; 35. positioning the bump; 4. a movable mould core; 41. an upper runner groove; 42. a square groove; 43. an upper semicircular groove; 44. a positioning groove; 45. an upper sphere ring groove; 5. a step-shaped sliding block; 51. a step portion; 511. a rear outer wall; 52. a sliding part; 6. a rod-shaped mold core; 7. a spherical annular housing; 8. a left insert; 81. a spherical recess; 82. a T-shaped bayonet; 83. an inclined guide block; 84. a slanted plane; 85. round salient points; 9. a right insert; 10. a guide bar; 101. t-shaped clamping blocks.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, the invention discloses an alloy injection mold for a spherical annular shell, which comprises a movable mold plate 1 and a fixed mold plate 2, wherein the movable mold plate 1 is provided with a movable mold core mounting hole 11, an upper injection through hole 12 and a pressing block groove 13, the upper injection through hole 12 and the pressing block groove 13 are respectively communicated with two side edges of the movable mold core mounting hole 11, the fixed mold plate 2 is provided with a fixed mold core mounting hole 21, a lower injection through hole 22 and a square sliding groove 23, the lower injection through hole 22 and the square sliding groove 23 are respectively communicated with two side edges of the fixed mold core mounting hole 21, the fixed mold core mounting hole 21 and the movable mold core mounting hole 11 are respectively provided with a corresponding fixed mold core 3 and a corresponding movable mold core 4, the upper surface of the fixed mold core 3 is provided with a lower runner groove 31 and two lower semicircular grooves 32 and a lower spherical annular groove 33 which are parallel to each other, two ends of the lower runner groove 31 are, the middle part of the lower runner groove 31 is communicated with the lower injection through hole 22, the left side and the right side of the lower sphere ring groove 33 are communicated with T-shaped inclined holes 34, the lower semicircular groove 32 penetrates through the front end and the rear end of the lower sphere ring groove 33, the front end of the lower semicircular groove 32 is communicated with the lower runner groove 31, and the rear end of the lower semicircular groove 32 is communicated with the square sliding groove 23; the lower surface of the movable die core 4 is provided with an upper runner groove 41, a square groove 42, two upper semicircular grooves 43 and an upper ball ring groove 45 which are parallel, two ends of the upper runner groove 41 are respectively communicated with the two upper semicircular grooves 43 which are parallel, the middle part of the upper runner groove 41 is communicated with the upper injection through hole 12, the square groove 42 penetrates through the left side and the right side of the two upper ball ring grooves 45, the upper semicircular groove 43 penetrates through the front end and the rear end of the lower ball ring groove 33, the front end of the upper semicircular groove 43 is communicated with the upper runner groove 41, and the rear end of the upper semicircular groove 43 is communicated with the briquetting groove 13; a left insert 8 and a right insert 9 are respectively matched in the T-shaped inclined holes 34 on the left side and the right side of the lower sphere ring groove 33 in an inclined way, the lower ends of the left insert 8 and the right insert 9 are movably connected with a guide rod 10, the upper ends of the left insert 8 and the right insert 9 are matched with a square groove 42, and the inner side walls of the left insert 8 and the right insert 9 are respectively provided with a spherical groove 81; the square chute 23 is matched with a step-shaped slide block 5 in a sliding way, the upper part of the step-shaped slide block 5 is a step part 51 matched with the pressing block groove 13, the lower part of the step-shaped slide block 5 is a sliding part 52 matched with the square chute 23 in a sliding way, the rear side outer wall 511 of the step part 51 and the rear side inner wall 131 of the pressing block groove 13 are both inclined planes matched with the inclined planes, the front end of the step-shaped slide block 5 is fixedly connected with two rod-shaped mold cores 6, the upper half part and the lower half part of each rod-shaped mold core 6 are respectively matched with the upper semicircular groove 43 and the lower semicircular groove 32 in a sliding way, the rod-shaped mold cores 6 are respectively matched with the, the spherical groove 81 of the left insert 8 and the spherical groove 81 of the right insert 9 form an injection molding die cavity of the spherical annular shell 7, and corresponding step grooves are respectively arranged at two ends of the upper spherical ring groove 45 of the movable die core 4 and the lower spherical ring groove 33 of the fixed die core 3. The upper ball ring groove 45 of the movable mould core 4, the lower ball ring groove 33 of the fixed mould core 3, the left insert 8 and the right insert 9 are provided with spherical grooves 81 which are distributed with round salient points 85.
Referring to fig. 4, the front and rear side walls of the lower portions of the left insert 8 and the right insert 9 are respectively provided with an inclined guide block 83 which is in inclined surface fit with the T-shaped inclined hole 34, the inclined direction of the inclined guide block 83 is gradually close to the injection mold cavity from the upper end to the lower end, the side walls of the left insert 8 and the inclined guide blocks 83 on the front and rear side walls thereof, which are back to the injection mold cavity, are located on the same inclined plane 84, and the side walls of the right insert 9 and the inclined guide blocks 83 on the front and rear side walls thereof, which are back to the injection mold cavity, are located on. The lower ends of the left insert 8 and the right insert 9 are both provided with a T-shaped bayonet 82, the upper end of the guide rod 10 is provided with a T-shaped clamping block 101 which is in clamping connection with the T-shaped bayonet 82, the guide rod 10 is sleeved with a return spring, the upper end of the return spring is arranged on the left insert 8 or the right insert 9 in an overhead mode, and the lower end of the return spring is pressed on the fixed die core 3.
Referring to fig. 2 and 3, four corners of the fixed mold core 3 are respectively provided with a positioning protrusion 35, and four corners of the movable mold core 4 are respectively provided with a positioning groove 44 corresponding to the positioning protrusion 35. A return spring is connected between the step-shaped slider 5 and the fixed die plate 2, the step part 51 is flush with the front outer wall of the sliding part 52, the rear outer wall 511 of the step part 51 is positioned at the front side of the sliding part 52, the height of the sliding part 52 is the same as the depth of the square sliding groove 23, and the height of the step part 51 is the same as the depth of the pressing block groove 13. The material of the fixed mold core 3 and the movable mold core 4 is selected from plastic mold steel, P20 steel or S55C steel, and the material of the rod-shaped mold core 6 is selected from NAK80 steel, S136 steel or H13 steel.
The implementation principle of the embodiment is as follows: when the movable mould plate 1 and the fixed mould plate 2 are matched, the movable mould plate 1 moves along the direction close to the fixed mould plate 2, the step part 51 at the upper part of the step-shaped slide block 5 is matched with the inclined plane of the press block groove 13, the sliding part 52 at the lower part of the step-shaped slide block 5 is matched with the square sliding groove 23 in a sliding way, the movable mould plate 1 drives the step-shaped slide block 5 to slide forwards along the square sliding groove 23, and drives the two rod-shaped mould cores 6 to move forwards to the injection mould cavity along the upper semicircular groove 43 and the lower semicircular; the upper ends of the left insert 8 and the right insert 9 are matched with the square groove 42, the left insert 8 and the right insert 9 are respectively matched with the T-shaped inclined holes 34 on the left side and the right side of the lower sphere ring groove 33 in an inclined plane, the left insert 8 and the right insert 9 respectively slide downwards along the T-shaped inclined holes 34 until the spherical grooves 81 on the left insert 8 and the right insert 9 move to an injection molding die cavity, and the rod-shaped die core 6, the upper sphere ring groove 45 of the movable die core 4, the lower sphere ring groove 33 of the fixed die core 3, the spherical groove 81 of the left insert 8 and the spherical groove 81 of the right insert 9 form the injection molding die cavity of the spherical annular shell 7; the molten plastic enters the injection molding cavity from the flow channel formed by the upper runner groove 41 and the lower runner groove 31, and the molten plastic is condensed in the injection molding cavity to form the injection molding part of the spherical annular shell 7; when the mold is opened between the movable mold plate 1 and the fixed mold plate 2, the movable mold plate 1 moves along the direction far away from the fixed mold plate 2, the step-shaped slide block 5 slides backwards along the square sliding groove 23, the step-shaped slide block 5 drives the two rod-shaped mold cores 6 to separate from the injection molding mold cavity, the left insert 8 and the right insert 9 respectively slide upwards along the T-shaped inclined hole 34, the spherical grooves 81 on the left insert 8 and the right insert 9 separate from the injection molding mold cavity, and then the injection molding parts of the two injection molded spherical annular shells 7 can be taken out.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides an alloy injection mold for spherical annular shell, includes movable mould board (1), fixed die plate (2), its characterized in that: the injection molding machine is characterized in that a movable mold core mounting hole (11), an upper injection through hole (12) and a pressing block groove (13) are formed in the movable mold plate (1), the upper injection through hole (12) and the pressing block groove (13) are respectively communicated with two side edges of the movable mold core mounting hole (11), a fixed mold core mounting hole (21), a lower injection through hole (22) and a square sliding groove (23) are formed in the fixed mold plate (2), the lower injection through hole (22) and the square sliding groove (23) are respectively communicated with two side edges of the fixed mold core mounting hole (21), corresponding fixed mold cores (3) and movable mold cores (4) are respectively installed in the fixed mold core mounting hole (21) and the movable mold core mounting hole (11), a lower runner groove (31), two lower semicircular grooves (32) which are parallel to each other and a lower spherical annular groove (33) are formed in the upper surface of the fixed mold core (3), two ends of the lower runner groove (31) are respectively communicated with the, the middle part of the lower runner groove (31) is communicated with the lower injection through hole (22), the left side and the right side of the lower sphere ring groove (33) are both communicated with T-shaped inclined holes (34), the lower semicircular groove (32) penetrates through the front end and the rear end of the lower sphere ring groove (33), the front end of the lower semicircular groove (32) is communicated with the lower runner groove (31), and the rear end of the lower semicircular groove (32) is communicated with the square sliding groove (23); the lower surface of the movable die core (4) is provided with an upper runner groove (41), a square groove (42), two upper semicircular grooves (43) which are parallel to each other and an upper ball ring groove (45), two ends of the upper runner groove (41) are respectively communicated with the two upper semicircular grooves (43) which are parallel to each other, the middle part of the upper runner groove (41) is communicated with the upper injection through hole (12), the square groove (42) penetrates through the left side and the right side of the two upper ball ring grooves (45), the upper semicircular grooves (43) penetrate through the front end and the rear end of the lower ball ring groove (33), the front end of the upper semicircular grooves (43) is communicated with the upper runner groove (41), and the rear end of the upper semicircular grooves (43) is communicated with the pressure block groove (13); a left insert (8) and a right insert (9) are respectively matched in the T-shaped inclined holes (34) on the left side and the right side of the lower sphere ring groove (33) in an inclined way, the lower ends of the left insert (8) and the right insert (9) are movably connected with guide rods (10), the upper ends of the left insert (8) and the right insert (9) are matched with a square groove (42), and the inner side walls of the left insert (8) and the right insert (9) are respectively provided with a spherical groove (81); a step-shaped sliding block (5) is matched on the square sliding groove (23) in a sliding way, the upper part of the step-shaped sliding block (5) is a step part (51) matched with the pressing block groove (13), the lower part of the step-shaped sliding block (5) is a sliding part (52) matched with the square sliding groove (23) in a sliding way, the rear outer wall (511) of the step part (51) and the rear inner wall (131) of the pressing block groove (13) are both inclined planes matched with each other in an inclined plane way, the front end of the step-shaped sliding block (5) is fixedly connected with two rod-shaped mold cores (6), the upper half part and the lower half part of each rod-shaped mold core (6) are respectively matched with the upper semicircular, the rod-shaped mold core (6) and the upper sphere ring groove (45) of the movable mold core (4), the lower sphere ring groove (33) of the fixed mold core (3), the spherical groove (81) of the left insert (8) and the spherical groove (81) of the right insert (9) form an injection molding mold cavity of the spherical annular shell (7).
2. The alloy injection mold for the spherical annular housing according to claim 1, wherein: the injection molding machine is characterized in that inclined guide blocks (83) matched with the T-shaped inclined holes (34) in an inclined manner are arranged on the front side wall and the rear side wall of the lower portion of each of the left insert (8) and the right insert (9), the inclined direction of each inclined guide block (83) is gradually close to an injection molding die cavity from the upper end to the lower end, the side walls of the left insert (8) and the inclined guide blocks (83) on the front side wall and the rear side wall of the left insert are located on the same inclined plane (84) in a mode of being back to the injection molding die cavity, and the side walls of the right insert (9) and the inclined guide blocks (83) on the front side wall.
3. The alloy injection mold for the spherical annular housing according to claim 2, characterized in that: the left insert (8) and the right insert (9) are provided with T-shaped bayonets (82), the upper end of the guide rod (10) is provided with a T-shaped clamping block (101) in clamping connection with the T-shaped bayonets (82), the guide rod (10) is sleeved with a return spring, the upper end of the return spring is propped against the left insert (8) or the right insert (9), and the lower end of the return spring is pressed against the fixed die core (3).
4. The alloy injection mold for the spherical annular housing according to claim 1, wherein: the ball-shaped die is characterized in that round salient points (85) are distributed on the upper ball-shaped ring groove (45) of the movable die core (4), the lower ball-shaped ring groove (33) of the fixed die core (3), the left insert (8) and the spherical groove (81) of the right insert (9).
5. The alloy injection mold for the spherical annular housing according to claim 4, wherein: the two ends of the upper sphere ring groove (45) of the movable mould core (4) and the lower sphere ring groove (33) of the fixed mould core (3) are respectively provided with corresponding step grooves.
6. The alloy injection mold for the spherical annular housing according to claim 1, wherein: four corners of the fixed die core (3) are respectively provided with a positioning lug (35), and four corners of the movable die core (4) are respectively provided with a positioning groove (44) corresponding to the positioning lug (35).
7. The alloy injection mold for the spherical annular housing according to claim 1, wherein: a return spring is connected between the stepped sliding block (5) and the fixed die plate (2), the stepped portion (51) is flush with the outer wall of the front side of the sliding portion (52), the outer wall (511) of the rear side of the stepped portion (51) is located on the front side of the sliding portion (52), the height of the sliding portion (52) is the same as the depth of the square sliding groove (23), and the height of the stepped portion (51) is the same as the depth of the pressing block groove (13).
8. The alloy injection mold for the spherical annular housing according to claim 1, wherein: the material of the fixed die core (3) and the movable die core (4) is selected from plastic die steel, P20 steel or S55C steel, and the material of the rod-shaped die core (6) is selected from NAK80 steel, S136 steel or H13 steel.
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|---|---|
| CN111152414B (en) | 2021-06-22 |
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