CN111251543A - Alloy injection mold for curtain rod decoration head - Google Patents
Alloy injection mold for curtain rod decoration head Download PDFInfo
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- CN111251543A CN111251543A CN202010049763.0A CN202010049763A CN111251543A CN 111251543 A CN111251543 A CN 111251543A CN 202010049763 A CN202010049763 A CN 202010049763A CN 111251543 A CN111251543 A CN 111251543A
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- 238000002347 injection Methods 0.000 title claims abstract description 79
- 239000007924 injection Substances 0.000 title claims abstract description 79
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 17
- 239000000956 alloy Substances 0.000 title claims abstract description 17
- 238000005034 decoration Methods 0.000 title abstract description 21
- 238000001746 injection moulding Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 6
- 102220259718 rs34120878 Human genes 0.000 claims description 5
- 229910001214 P-type tool steel Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 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
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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
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- 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
- B29C33/76—Cores
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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
- 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
- B29C45/34—Moulds having venting means
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/719—Curtains; Blinds; Shades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to an alloy injection mold for a curtain rod decoration head, which comprises a movable mold plate and a fixed mold plate, wherein the movable mold plate is provided with a movable mold core mounting hole, an upper injection groove and an upper groove, the upper injection groove and the upper groove are respectively communicated with two side edges of the movable mold core mounting hole, the fixed mold plate is provided with a fixed mold core mounting hole, a lower injection groove and a lower square sliding groove, the lower injection groove and the lower 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 provided with a corresponding fixed mold core and a corresponding movable mold core, and the upper surface of the fixed mold core is provided with two parallel lower spiral grooves. The upper annular deep groove and the upper spiral groove form an upper die cavity of the curtain rod decorative head, the lower annular deep groove and the lower spiral groove form a lower die cavity of the curtain rod decorative head, and the rod-shaped die core is used as an injection molding die core, so that the curtain rod decorative head is suitable for batch injection production of small special-shaped pieces, and the production efficiency and the injection molding quality of the curtain rod decorative head are improved.
Description
Technical Field
The invention relates to the technical field of injection molds, in particular to an alloy injection mold for a curtain rod decoration head.
Background
The injection molding of the mold is to inject the plastic raw material which is heated and melted into the mold cavity of the plastic mold by the screw of the injection molding machine under high pressure, and the plastic molding product is obtained after cooling and solidification. The plastic mold is generally composed of a movable mold and a fixed mold, the movable mold is mounted on a movable mold plate of the injection molding machine, and the fixed mold is mounted on a fixed mold plate of the injection molding machine. And when the mold is opened, the movable mold is separated from the fixed mold so as to take out the plastic product. 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. Among them, the casting system and the molded parts are the parts in direct contact with the plastic and vary with the plastic and the product, and are the most complicated, most variable, and the most demanding of finish and precision in the mold.
The chinese patent application with publication number CN106079269B in the prior art discloses an injection mold, the side core pulling structure of which comprises two sliders with side cores, two rotating connecting plates, a pulling block, a slider spring, a first pin and a second pin; the pull block is respectively hinged with the two rotary connecting plates through first pins, and the rotary connecting plates are hinged with the sliding block through second pins; the slide block is arranged on the upper surface of the embedding block in a sliding manner through the sliding chute, and the embedding block is fixedly arranged on a core insert in the movable mold assembly; the embedded block is respectively provided with through holes for placing a first spring below two ends of the pulling block, and two ends of the first spring are respectively abutted against one end of the pulling block and a core die core in the movable die assembly and are used for providing elastic force which is vertically far away from the core die core for the pulling block; the injection mold adopts a side core-pulling structure designed by a hinge structure, so that the side core-pulling of the relative movement of the slide block can be completed quickly and accurately, and the occupied space is small; the whole mould still has convenient dismantlement, dismantles alone to concrete part, the convenient characteristics of maintaining.
The above prior art solutions have the following drawbacks: when the common parts such as the thimble, the thimble panel, the thimble bottom plate, the core mould core and the like have problems, the parts still need to be disassembled from the mould arranged on the injection molding machine for maintenance, replacement and reinstallation, the maintenance cost and the labor cost are too high, and the parts are not suitable for batch production of small injection molding products with different structures. Therefore, it is necessary to design and develop an alloy injection mold for a curtain rod decoration head.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an alloy injection mold for a curtain rod decoration head, wherein an upper annular deep groove and an upper spiral groove form an upper mold cavity of the curtain rod decoration head, a lower annular deep groove and a lower spiral groove form a lower mold cavity of the curtain rod decoration head, and a rod-shaped mold core is used as an injection mold core, so that the alloy injection mold is suitable for batch injection production of small special-shaped pieces, and improves the production efficiency and the injection quality of the curtain rod decoration head.
The above object of the present invention is achieved by the following technical solutions:
an alloy injection mold for a curtain rod decoration head comprises a movable mold plate and a fixed mold plate, wherein a movable mold core mounting hole, an upper injection groove and an upper groove are formed in the movable mold plate, the upper injection groove and the upper groove are respectively communicated with two side edges of the movable mold core mounting hole, a fixed mold core mounting hole, a lower injection groove and a lower square sliding groove are formed in the fixed mold plate, the lower injection groove and the lower 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, the upper surface of the fixed mold core is provided with two parallel lower spiral grooves, the tail end of the outermost layer of the lower spiral groove is communicated with a lower annular deep groove, the lower annular deep groove and the lower spiral groove form a lower mold cavity of the curtain rod decoration head, a lower semicircular sliding groove is communicated with the lower square sliding groove, and the lower surface of the movable mold core is, the tail end of the outermost layer of the upper spiral groove is communicated with an upper annular deep groove, the upper annular deep groove and the upper spiral groove form an upper die cavity of the curtain rod decorative head, an upper semicircular sliding groove is communicated between the lower annular deep groove and the lower square sliding groove, and the upper die cavity and the lower die cavity correspond to form a die cavity for injection molding of the curtain rod decorative head; the lower square sliding groove is provided with a step-shaped sliding block in sliding fit, the upper portion of the step-shaped sliding block is provided with a step portion matched with the upper groove, the rear side wall of the step portion is in inclined surface fit with the inner wall of the rear side of the upper groove, the front end of the step-shaped sliding block is fixedly connected with two rod-shaped mold cores, the upper half portion and the lower half portion of each rod-shaped mold core are in sliding fit with the upper semicircular sliding groove and the lower semicircular sliding groove respectively, the movable mold plate moving downwards drives the step-shaped sliding block to slide forwards along the lower square sliding groove, and the two rod-shaped mold cores at the front end of the step.
By adopting the technical scheme, when the movable template and the fixed template are matched, the upper annular deep groove and the upper spiral groove form an upper die cavity of the curtain rod decoration head, the lower annular deep groove and the lower spiral groove form a lower die cavity of the curtain rod decoration head, the upper groove of the movable template is matched with the step part inclined plane on the upper part of the step-shaped slide block, the movable template moving downwards drives the step-shaped slide block to slide forwards along the lower square sliding groove and drives the rod-shaped mold core to move forwards to extend into the injection molding cavity formed by the upper die cavity and the lower die cavity, and the rod-shaped mold core is used as the mold core of the mounting hole at the end part of the curtain; molten plastic enters the main flow channel from an injection groove formed by the upper injection groove and the lower injection groove, flows through the main flow channel and is injected into the injection molding cavity, and the molten plastic is condensed to form the decorative head of the curtain rod; after the movable mould plate and the fixed mould plate are opened, the step-shaped slide blocks are pulled by the reset spring to respectively slide backwards along the guide sliding grooves, and then the two injection-molded curtain rod decoration heads can be taken out. The injection mold is suitable for batch injection production of small special-shaped parts, and improves the production efficiency and injection quality of the curtain rod decorative head.
The present invention in a preferred example may be further configured to: the fixed die core is provided with a main runner positioned between the two lower spiral grooves, an injection port of the main runner is communicated with the lower injection groove, and a pouring gate of the main runner is communicated with the two lower spiral grooves.
By adopting the technical scheme, the main flow channel is positioned between the two lower spiral grooves, the molten plastic enters the two injection molding cavities through the main flow channel respectively, two curtain rod finials can be simultaneously injection molded, and the production efficiency and the dimensional accuracy of the curtain rod finials are ensured.
The present invention in a preferred example may be further configured to: and one side of the tail end of the innermost layer section of the lower spiral groove is provided with a main exhaust groove, two sides of the lower annular deep groove are respectively provided with an auxiliary exhaust groove, and the movable die core is respectively provided with an air guide block matched with the main exhaust groove and the auxiliary exhaust groove.
By adopting the technical scheme, the main exhaust groove, the auxiliary exhaust groove and the air guide block are matched to form a vacuum environment, and gas generated in the injection molding process can enter the main exhaust groove and the auxiliary exhaust groove adjacent to the injection molding cavity, so that the injection molding quality of the curtain rod decoration head is ensured.
The present invention in a preferred example may be further configured to: the side of the main exhaust groove close to the lower spiral groove is provided with a slope, and the side of the auxiliary exhaust groove close to the lower annular deep groove is provided with a slope.
By adopting the technical scheme, the main exhaust groove and the auxiliary exhaust groove are communicated with the lower spiral groove and the annular deep groove which are close to the main exhaust groove and the auxiliary exhaust groove by the slope surface, and gas generated in the injection molding process can enter from the slope surface.
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 curtain rod decoration head injection molding piece are guaranteed when the die is closed or opened by 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 comprises a step part on the upper portion and a sliding part on the lower portion, a return spring is connected between the sliding part and the fixed die plate, the step part is flush with the front side wall of the sliding part, the rear side wall of the step part is located on the rear side of the rear side wall of the sliding part, and the height of the sliding part is the same as the depth of the lower square sliding groove.
By adopting the technical scheme, the upper groove of the movable template is matched with the inclined surface of the step part at the upper part of the step-shaped slide block, the movable template moving downwards drives the sliding part at the lower part of the step-shaped slide block to slide forwards along the lower square sliding groove, and when the movable template and the fixed template are mutually demoulded, the step-shaped slide block is under the action of the tension of the reset spring and moves backwards along the lower square sliding groove until the rod-shaped mold core is completely separated from the curtain rod decorative head.
The present invention in a preferred example may be further configured to: the upper injection groove and the lower injection groove are correspondingly arranged, and the cross sections of the upper injection groove and the lower injection groove are in major arc shapes.
By adopting the technical scheme, the upper injection groove on the movable mould plate is matched with the lower injection groove on the fixed mould plate to form a channel for molten plastic to enter the injection mould cavity.
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 very suitable for being processed and manufactured into a fixed die core and a movable die core; NAK80 steel, S136 steel or H13 steel are all steel with the advantages of high wear resistance, high hot tensile strength, high toughness and the like, and are very suitable for being processed and manufactured into rod-shaped mold cores.
In summary, the invention includes at least one of the following beneficial technical effects:
1. when the movable template and the fixed template are matched, the upper annular deep groove and the upper spiral groove form an upper die cavity of the curtain rod decorative head, the lower annular deep groove and the lower spiral groove form a lower die cavity of the curtain rod decorative head, the upper groove of the movable template is matched with the step part inclined plane on the upper part of the step-shaped slide block, the movable template moving downwards drives the step-shaped slide block to slide forwards along the lower square sliding groove and drives the rod-shaped mold core to move forwards to extend into an injection molding cavity formed by the upper die cavity and the lower die cavity, and the rod-shaped mold core is used as a mold core of a mounting hole at the end part of the curtain rod decorative head; molten plastic enters the main flow channel from an injection groove formed by the upper injection groove and the lower injection groove, flows through the main flow channel and is injected into the injection molding cavity, and the molten plastic is condensed to form the decorative head of the curtain rod; after the movable mould plate and the fixed mould plate are opened, the step-shaped slide blocks are pulled by the reset spring to respectively slide backwards along the guide sliding grooves, and then the two injection-molded curtain rod decoration heads can be taken out. The injection mold is suitable for batch injection production of small special-shaped parts, and improves the production efficiency and injection quality of the curtain rod decorative head;
2. the upper groove of the movable template is matched with the inclined plane of the step part at the upper part of the step-shaped slide block, the movable template moving downwards drives the sliding part at the lower part of the step-shaped slide block to slide forwards along the lower square sliding groove, when the movable template and the fixed template are demoulded mutually, the step-shaped slide block is under the action of the tension of the return spring and moves backwards along the lower square sliding groove until the rod-shaped mold core is completely separated from the curtain rod decorative head, and the curtain rod decorative head can be conveniently taken out;
3. the positioning lug is in guide fit with the positioning groove, and when the fixed die core and the movable die core are matched with each other or opened, the size and position accuracy of the curtain rod decoration head injection molding piece are kept; the plastic die steel, the P20 steel or the S55C steel are all steels with high mirror polishing performance, and are very suitable for being processed and manufactured into a cavity block and a die block; NAK80 steel, S136 steel or H13 steel are all steel with the advantages of high wear resistance, high hot tensile strength, high toughness and the like, and are very suitable for being processed and manufactured into rod-shaped mold cores.
Drawings
Fig. 1 is a schematic structural 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. .
In the figure, 1, a movable template; 11. a movable mould core mounting hole; 12. an upper injection groove; 13. an upper groove; 131. the rear inner wall of the upper groove; 2. fixing a template; 21. a fixed die core mounting hole; 22. a lower injection groove; 23. a lower square chute; 24. a main flow channel; 3. fixing a mold core; 31. a lower helical groove; 32. a lower annular deep groove; 33. a lower semicircular chute; 34. a main exhaust duct; 35. an auxiliary exhaust groove; 36. positioning the bump; 4. a movable mould core; 41. an upper spiral groove; 42. an upper annular deep groove; 43. an upper semicircular chute; 44. a positioning groove; 45. a gas guide block; 5. a step-shaped sliding block; 51. a step portion; 511. a rear side wall of the step portion; 52. a sliding part; 6. a rod-shaped mold core; 7. finials for curtain rods.
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 curtain rod decoration head, which comprises a movable mold plate and a fixed mold plate, wherein the movable mold plate is provided with a movable mold core mounting hole, an upper injection groove and an upper groove, the upper injection groove and the upper groove are respectively communicated with two side edges of the movable mold core mounting hole, the fixed mold plate is provided with a fixed mold core mounting hole, a lower injection groove and a lower square sliding groove, the lower injection groove and the lower 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 provided with a corresponding fixed mold core and a corresponding movable mold core, the upper surface of the fixed mold core is provided with two parallel lower spiral grooves, the tail end of the outermost layer of the lower spiral groove is communicated with a lower annular deep groove, the lower annular deep groove and the lower spiral groove form a lower mold cavity of the curtain rod decoration head, and a lower semicircular sliding groove is communicated with the, the lower surface of the movable die core is provided with two upper spiral grooves which are parallel, the tail end of the outermost layer section of each upper spiral groove is communicated with an upper annular deep groove, the upper annular deep groove and the upper spiral grooves form an upper die cavity of the curtain rod decorative head, an upper semicircular sliding groove is communicated between the lower annular deep groove and a lower square sliding groove, and the upper die cavity and the lower die cavity correspond to form a die cavity for injection molding of the curtain rod decorative head; the lower square sliding groove is provided with a step-shaped sliding block in sliding fit, the upper portion of the step-shaped sliding block is provided with a step portion matched with the upper groove, the rear side wall of the step portion is in inclined surface fit with the inner wall of the rear side of the upper groove, the front end of the step-shaped sliding block is fixedly connected with two rod-shaped mold cores, the upper half portion and the lower half portion of each rod-shaped mold core are in sliding fit with the upper semicircular sliding groove and the lower semicircular sliding groove respectively, the movable mold plate moving downwards drives the step-shaped sliding block to slide forwards along the lower square sliding groove, and the two rod-shaped mold cores at the front end of the step.
Referring to fig. 2 and 3, the cavity insert is provided with a main runner located between the two lower spiral grooves, an injection port of the main runner is communicated with the lower injection groove, and a gate of the main runner is communicated with the two lower spiral grooves. One side of the tail end of the innermost layer section of the lower spiral groove is provided with a main exhaust groove, two sides of the lower annular deep groove are respectively provided with an auxiliary exhaust groove, and the movable die core is respectively provided with an air guide block matched with the main exhaust groove and the auxiliary exhaust groove. The side of the main exhaust groove close to the lower spiral groove is provided with a slope, and the side of the auxiliary exhaust groove close to the lower annular deep groove is provided with a slope. The four corners of the fixed mold core are respectively provided with a positioning lug, and the four corners of the movable mold core are respectively provided with a positioning groove corresponding to the positioning lug. The step-shaped sliding block comprises a step part on the upper portion and a sliding part on the lower portion, a return spring is connected between the sliding part and the fixed die plate, the step part is flush with the front side wall of the sliding part, the rear side wall of the step part is located on the rear side of the rear side wall of the sliding part, and the height of the sliding part is the same as the depth of the lower square sliding groove. The upper injection groove and the lower injection groove are correspondingly arranged, and the cross sections of the upper injection groove and the lower injection groove are in major arc shapes.
In addition, 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.
The implementation principle of the embodiment is as follows: when the movable template and the fixed template are matched, the upper annular deep groove and the upper spiral groove form an upper die cavity of the curtain rod decorative head, the lower annular deep groove and the lower spiral groove form a lower die cavity of the curtain rod decorative head, an upper groove of the movable template is matched with a step part inclined plane on the upper part of the step-shaped sliding block, the movable template moving downwards drives the step-shaped sliding block to slide forwards along the lower square sliding groove and drives the rod-shaped die core to move forwards to extend into an injection molding cavity formed by the upper die cavity and the lower die cavity, and the rod-shaped die core is used as a die core of a mounting hole at the end part of the curtain; molten plastic enters the main flow channel from an injection groove formed by the upper injection groove and the lower injection groove, flows through the main flow channel and is injected into the injection molding cavity, and the molten plastic is condensed to form the decorative head of the curtain rod; after the movable mould plate and the fixed mould plate are opened, the step-shaped slide blocks are pulled by the reset spring to respectively slide backwards along the guide sliding grooves, and then the two injection-molded curtain rod decoration heads 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 a curtain pole is alloy injection mold for finial, includes movable mould board, fixed die plate, its characterized in that: the movable mould plate is provided with a movable mould core mounting hole, an upper injection groove and an upper groove, the upper injection groove and the upper groove are respectively communicated with two side edges of the movable mould core mounting hole, the fixed mould plate is provided with a fixed mould core mounting hole, a lower injection groove and a lower square sliding groove, the lower injection groove and the lower square sliding groove are respectively communicated with two side edges of the fixed mould core mounting hole, the fixed mould core mounting hole and the movable mould core mounting hole are respectively provided with a fixed mould core and a movable mould core which are corresponding, the upper surface of the fixed mould core is provided with two lower spiral grooves which are parallel, the tail end of the outermost layer of the lower spiral groove is communicated with a lower annular deep groove, the lower annular deep groove and the lower spiral groove form a lower mould cavity of the curtain rod decorative head, a lower semicircular sliding groove is communicated between the lower annular deep groove and the lower square sliding groove, the lower surface of the movable mould core is provided with two upper spiral grooves which are parallel, and, the upper annular deep groove and the upper spiral groove form an upper die cavity of the curtain rod decorative head, an upper semicircular sliding groove is communicated between the lower annular deep groove and the lower square sliding groove, and the upper die cavity and the lower die cavity correspond to form a die cavity for injection molding of the curtain rod decorative head; the lower square sliding groove is provided with a step-shaped sliding block in sliding fit, the upper portion of the step-shaped sliding block is provided with a step portion matched with the upper groove, the rear side wall of the step portion is in inclined surface fit with the inner wall of the rear side of the upper groove, the front end of the step-shaped sliding block is fixedly connected with two rod-shaped mold cores, the upper half portion and the lower half portion of each rod-shaped mold core are in sliding fit with the upper semicircular sliding groove and the lower semicircular sliding groove respectively, the movable mold plate moving downwards drives the step-shaped sliding block to slide forwards along the lower square sliding groove, and the two rod-shaped mold cores at the front end of the step.
2. The alloy injection mold for a curtain rod finial as claimed in claim 1, wherein: the fixed die core is provided with a main runner positioned between the two lower spiral grooves, an injection port of the main runner is communicated with the lower injection groove, and a pouring gate of the main runner is communicated with the two lower spiral grooves.
3. The alloy injection mold for a curtain rod finial as claimed in claim 1, wherein: and one side of the tail end of the innermost layer section of the lower spiral groove is provided with a main exhaust groove, two sides of the lower annular deep groove are respectively provided with an auxiliary exhaust groove, and the movable die core is respectively provided with an air guide block matched with the main exhaust groove and the auxiliary exhaust groove.
4. The curtain rod finial alloy injection mold according to claim 2, wherein: the side of the main exhaust groove close to the lower spiral groove is provided with a slope, and the side of the auxiliary exhaust groove close to the lower annular deep groove is provided with a slope.
5. The alloy injection mold for a curtain rod finial as claimed in claim 1, wherein: 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.
6. The alloy injection mold for a curtain rod finial as claimed in claim 1, wherein: the step-shaped sliding block comprises a step part on the upper portion and a sliding part on the lower portion, a return spring is connected between the sliding part and the fixed die plate, the step part is flush with the front side wall of the sliding part, the rear side wall of the step part is located on the rear side of the rear side wall of the sliding part, and the height of the sliding part is the same as the depth of the lower square sliding groove.
7. The alloy injection mold for a curtain rod finial as claimed in claim 1, wherein: the upper injection groove and the lower injection groove are correspondingly arranged, and the cross sections of the upper injection groove and the lower injection groove are in major arc shapes.
8. The alloy injection mold for a curtain rod finial as claimed in claim 1, wherein: 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010049763.0A CN111251543A (en) | 2020-01-16 | 2020-01-16 | Alloy injection mold for curtain rod decoration head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010049763.0A CN111251543A (en) | 2020-01-16 | 2020-01-16 | Alloy injection mold for curtain rod decoration head |
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| Publication Number | Publication Date |
|---|---|
| CN111251543A true CN111251543A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010049763.0A Pending CN111251543A (en) | 2020-01-16 | 2020-01-16 | Alloy injection mold for curtain rod decoration head |
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| CN (1) | CN111251543A (en) |
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| CN203994536U (en) * | 2014-08-06 | 2014-12-10 | 江天精密制造科技（苏州）有限公司 | The core-pulling die structure of elongated tubular bodies |
| CN107081877A (en) * | 2017-06-28 | 2017-08-22 | 黄石市洪兴塑料模具股份有限公司 | Shaft sleeve die |
| CN208324078U (en) * | 2018-06-08 | 2019-01-04 | 昆山精鑫模具有限公司 | A kind of Plastic injection mould for mobile phone shell |
| CN110103414A (en) * | 2019-06-03 | 2019-08-09 | 常州密优精密模具有限公司 | The encapsulated injection mold of strong magnet rotor iron core |
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2020
- 2020-01-16 CN CN202010049763.0A patent/CN111251543A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4889480A (en) * | 1988-11-22 | 1989-12-26 | Sankyo Engineering Co., Ltd. | Slide core mold and injection molding |
| CN101117015A (en) * | 2007-09-03 | 2008-02-06 | 黄山市汽车电器有限公司 | Bended wedge inside and outside knockout core injection mould |
| CN202399469U (en) * | 2011-12-16 | 2012-08-29 | 宁波万隆模塑成型有限公司 | Step-by-step opening injection mould |
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Application publication date: 20200609 |