CN213733203U - Novel forming die of through-flow fan blade - Google Patents

Abstract

The utility model relates to a forming die of a novel cross-flow fan blade, which comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base and an upper die core arranged in the upper die base; the lower die assembly comprises a lower die base and a lower die core arranged in the lower die base; the upper mold core is butted with the lower mold core to form a mold cavity for filling injection molding materials and forming the fan blades, and an injection molding channel for conveying the injection molding materials to the mold cavity and obtaining the material handle after injection molding; the lower die assembly further comprises a material pulling rod fixedly arranged at the center of the lower die base and a material pushing piece capable of moving up and down, and a conical tip used for shunting an injection molding channel is arranged at the upper end of the material pulling rod. The material pulling rod adopts a conical tip structure, the flowability of the injection molding material can be improved, the cooling time of the material handle is reduced, the material pulling rod and the material pushing piece are divided into the material pulling rod and the material pushing piece, the material pushing piece can move upwards to push the material handle to be separated from the material pulling rod, and meanwhile, the material handle and the material pushing piece are separated when a subsequent mechanical arm is clamped conveniently.

Description

Novel forming die of through-flow fan blade

Technical Field

The utility model relates to a fan blade forming die field especially relates to a novel forming die of through-flow fan blade.

Background

The cross-flow fan blade is an air conditioner fan blade, and the cross-flow fan blade comprises a motor shaft disc, a steel shaft disc and a plurality of middle section discs arranged between the motor shaft disc and the steel shaft disc, wherein the motor shaft disc, the steel shaft disc and the middle section discs are all integrally formed by adopting mould injection. The quality of the injection mold plays a crucial role in the quality of plastic products.

As shown in fig. 1, a chinese utility model with publication number CN201822255353.2 discloses a forming die for a through-flow fan blade, which comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base and an upper die core arranged in the upper die base; the lower die assembly comprises a lower die base and a lower die core arranged in the lower die base; the upper mold core is butted with the lower mold core to form a mold cavity and an injection molding channel; the injection molding channel comprises a first channel section positioned in the center of the upper mold core and a plurality of second channel sections communicated from the lower end part of the first channel section to the mold cavity; the second channel section is positioned on the joint surface of the upper mold core and the lower mold core, the lower mold assembly further comprises a material pulling rod, the material pulling rod is arranged at the center of the lower mold base in a penetrating mode, and the upper end portion of the material pulling rod is positioned at the intersection of the first channel section and the second channel section of the injection molding channel. Although the cooling time of the material handle can be reduced, the top of the material pulling rod is made into a conical tip structure, so that the contact area between the material pulling push rod and the material handle is large, and the material handle is easy to damage when the material handle is taken down from the material pulling push rod by a manipulator.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide a novel forming die of through-flow fan blade, the material handle after the shaping can be easily with draw the material pole separation in this scheme, and convenient to use manipulator presss from both sides and gets.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a forming die of a novel cross-flow fan blade comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base and an upper die core arranged in the upper die base; the lower die assembly comprises a lower die base and a lower die core arranged in the lower die base; the upper mold core is butted with the lower mold core to form a mold cavity for filling injection molding materials and forming the fan blades, and an injection molding channel for conveying the injection molding materials to the mold cavity and obtaining the material handle after injection molding; the lower die assembly further comprises a material pulling rod fixedly arranged at the center of the lower die base and a material pushing piece capable of moving up and down, and a conical tip used for shunting an injection molding channel is arranged at the upper end of the material pulling rod. The prior art adopts the most advanced material pole structure that draws of toper, has reduced the cooling time of material handle when can promote the smooth and easy nature that flows of the material of moulding plastics again, has improved production efficiency, but the most advanced contact area of toper and material handle is bigger, the separation of material handle and material pole when the follow-up manipulator clamp was got the material handle of not being convenient for. This scheme is through having divided into present material pulling rod and pushing away material piece two parts with original push-and-pull material pole, and after the fan blade separates with last mould core, pushing away material piece ability upward movement makes material handle and material pulling rod separation, and the material handle separates with pushing away the material piece when the follow-up manipulator clamp of being convenient for is got simultaneously.

Further, the injection molding channel comprises a first channel section positioned in the center of the upper mold core and a plurality of second channel sections communicated from the lower end part of the first channel section to the mold cavity; the second channel section is positioned on the joint surface of the upper mold core and the lower mold core; the conical tip of the material pulling rod is positioned at the intersection of the first channel section and the second channel section of the injection molding channel. According to the scheme, the conical tip of the material pulling rod is arranged at the intersection of the first channel section and the second channel section of the injection molding channel, on one hand, the conical tip of the conical material pulling rod also has a shunting effect, so that the injection molding material can be shunted, and the flowing smoothness of the injection molding material is improved; on the other hand, the thickness of the material handle formed at the intersection of the first channel section and the second channel section is greatly reduced by adopting the conical tip structure, so that raw materials are saved, the cooling time of the material handle is shortened, and the production efficiency is improved.

Furthermore, the material pushing part is a pushing pipe sleeved on the material pulling rod, and the pushing pipe can axially move relative to the material pulling rod to separate the material handle from the material pulling rod. This scheme sets up the ejector sleeve that the cover established on drawing the material pole as pushing away the material piece, when moulding plastics, the upper end of ejector sleeve can be connected to a certain extent with the material handle, then the completion back of moulding plastics, after last mold core and fan blade separation finish, the ejector sleeve can be along drawing material pole axial motion, make material handle and drawing the material pole separation, then carry the material handle by the manipulator, make material handle and ejector sleeve separation, at this moment, because the ejector sleeve only the top round is connected with the material handle, can separate easily between ejector sleeve and the material handle, avoided drawing between material pole toper point and the material handle because area of contact is great, difficult in order to separate and lead to the damaged problem of material handle portion.

Furthermore, an inner cooling loop and an outer cooling loop are arranged on the lower mold core, and the lower mold core comprises a lower mold core main body and a lower mold core insert embedded in the center of the lower mold core main body; the inner cooling loop comprises a side surface cooling groove for cooling the inner side surface of the fan blade, a top surface cooling groove for cooling the disc surface of the fan blade and a water feeding channel for feeding cooling water; the side cooling groove is spirally arranged downwards along the outer side wall surface of the lower mold core insert. The fan blade mainly includes two parts of blade and quotation, and this scheme sets up traditional side cooling bath into the groove of following lower mould core mold insert outside wall spiral and arranging downwards for the side cooling bath can carry out even cooling to the inboard of fan blade, has improved the utilization ratio of cooling water simultaneously, makes the cooling water walk the round and just can realize the cooling to whole fan blade inboard.

Furthermore, the starting end of the side cooling groove is connected with a water inlet arranged at the top end of the lower mold core insert, and the terminal end of the side cooling groove is connected with a water outlet arranged at the bottom end of the lower mold core insert. This scheme is with the starting point end of side cooling bath and the water inlet intercommunication on lower mould core mold insert top, links to each other side cooling bath terminal point end with the delivery port of locating lower mould core mold insert bottom to make whole side cooling bath be covered with whole lower mould core mold insert side, increase the cooling area of side cooling bath.

Furthermore, the water feeding channel penetrates through the upper surface and the lower surface of the lower mold core insert; the inlet of the water delivery channel is arranged on the bottom surface of the lower mold core insert, and the outlet of the water delivery channel is arranged on the top surface of the lower mold core insert. The starting point end of the side surface cooling groove is arranged on the top surface of the lower mold core insert, so that a water feeding channel communicated with the upper surface and the lower surface of the lower mold core insert is arranged in the lower mold core insert, and cooling water can rise to the top surface of the lower mold core insert through the channel.

Furthermore, the inner end of the top surface cooling groove is communicated with a water outlet of the water feeding channel, and the outer end of the top surface cooling groove is communicated with the starting point end of the side surface cooling groove. In order to improve the utilization efficiency of cooling water, the inner end of the top surface cooling groove is communicated with a water outlet of the water feeding channel, and the outer end of the top surface cooling groove is communicated with the starting point end of the side surface cooling groove, so that the top surface cooling groove, the side surface cooling groove and the water feeding channel are connected into a complete loop, and cooling water can complete cooling of the inner sides of the blades and the disk surface of the fan blade by one circle.

Furthermore, the top surface cooling groove is arranged on the bottom plane of the lower mold core main body, and the lower mold core insert encloses the sealed top surface cooling groove. In order to facilitate cooling of the disc surface of the fan blade and communication of the water supply channel and the side cooling groove, the top cooling groove is arranged on the bottom plane of the lower mold core main body.

Further, the outer cooling circuit comprises an outer cooling groove arranged on the outer side wall surface of the lower mold core main body, and a water inlet channel and a water outlet channel which are communicated with the outer cooling groove.

The above technical scheme is adopted in the utility model, this technical scheme relates to a novel forming die of through-flow fan blade, and this scheme is through having divided into original push-and-pull material pole and pushing away material piece two parts, and after fan blade and last mould core separation, pushing away material piece ability upward movement makes the material handle with draw the material pole separation, and the material handle separates with pushing away the material piece when the follow-up manipulator clamp of being convenient for gets.

Drawings

Fig. 1 is a prior art explanatory diagram.

Fig. 2 is an explanatory view of the present invention.

Fig. 3 is an illustration of the cooling circuit layout on the lower core insert of fig. 1.

Fig. 4 is an illustration of the cooling circuit layout on the lower core insert of fig. 2.

Fig. 5 is an explanatory view of the fan blade and the material handle after demoulding.

In the figure: the mold comprises an upper mold base 1, an upper mold core 3, a lower mold core main body 4, a lower mold core insert 5, an injection molding channel 7, a material pulling rod 8, a push pipe 82, a top surface cooling groove 11, a side surface cooling groove 12, an outer cooling groove 13, a disk surface 14, a material handle 15, blades 16, a starting point end 53, a water outlet 54, an inlet 51, an outlet 52, a lower mold base plate 6, a cooling water outlet 61, a cooling water inlet 62 and an exhaust duct 9.

Detailed Description

The preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1: as shown in fig. 2, a forming die for a novel cross-flow fan blade comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base 1 and an upper die core 3 arranged in the upper die base 1; the lower die assembly comprises a lower die base and a lower die core arranged in the lower die base; the upper mold core 3 is butted with the lower mold core to form a mold cavity for filling injection molding materials and forming the fan blades, and an injection molding channel 7 for conveying the injection molding materials to the mold cavity and obtaining a material handle 15 after injection molding.

As shown in fig. 2 and 5, the fan blade includes a disk surface 14 and a blade 16 connected to the disk surface, a cooling system for cooling the fan blade is arranged on the mold, an inner cooling loop and an outer cooling loop are arranged on the lower mold core, the lower mold core includes a lower mold core main body and a lower mold core insert 5 embedded in the center of the lower mold core main body; the inner cooling loop comprises a side surface cooling groove 12 for cooling the inner side surface of the fan blade, a top surface cooling groove 11 for cooling the disc surface of the fan blade and a water feeding channel for feeding cooling water; the side cooling grooves 12 are arranged spirally downward along the outer side wall surface of the lower core insert 5. This scheme is established to the side cooling bath 12 of arranging downwards along the 5 outside wall spirals of lower mould core mold insert through side cooling bath 12 with traditional for this side cooling bath 12 can carry out even cooling to fan blade's inboard, has improved the utilization ratio of cooling water simultaneously, makes the cooling water walk the round and just can realize the inboard cooling of whole fan blade.

As shown in fig. 4, in order to make the arrangement of the side cooling grooves 12 more uniform on the lower core insert 5, the starting end 53 of the side cooling groove 12 is communicated with the top surface of the lower core insert 5, and the ending end of the side cooling groove 12 is connected to a water outlet 54 provided on the bottom surface of the lower core insert 5. The side cooling grooves 12 formed in the side walls of the lower core insert 5 are communicated with the upper and lower end surfaces of the lower core insert 5, so that the entire side cooling grooves 12 are distributed over the entire side surface of the lower core insert 5, thereby ensuring that the side cooling grooves 12 have a sufficient cooling area.

As shown in fig. 3 and 4, the water supply passage is a passage penetrating through the upper and lower surfaces of the lower core insert 5, and an inlet 51 and an outlet 52 of the water supply passage are provided on the bottom surface and the top surface of the lower core insert 5, respectively. Since the starting point 53 of the side surface cooling groove 12 is provided on the top surface of the lower core insert 5, a water supply passage for communicating the upper and lower portions of the lower core insert 5 is provided in the lower core insert 5, and cooling water can be raised to the top surface of the lower core insert 5 through the water supply passage. Meanwhile, the internal cooling loop also comprises a top surface cooling groove 11 for cooling the disc surface of the fan blade. Arranging a top surface cooling groove 11 on the bottom plane of a lower die core main body, and enclosing a lower die core insert 5 to seal the top surface cooling groove 11; the inner end of the top surface cooling groove 11 is communicated with the water feeding channel outlet 52, and the outer end is communicated with the starting point 53 of the side surface cooling groove 12. In order to facilitate the cooling of the disc surface of the fan blade and simultaneously communicate the water feeding channel with the side cooling groove 12, the top surface cooling groove 11 is arranged on the bottom plane of the lower die core main body.

As shown in the drawing, the degree of freedom of the arrangement of the outer cooling circuit is much greater than that of the inner cooling circuit, the outer cooling circuit includes an outer cooling groove formed in the outer side wall surface of the lower mold core main body, and a water inlet channel and a water outlet channel communicated with the outer cooling groove, and various embodiments of the outer cooling circuit may be provided in order to ensure cooling of the outer side surface of the fan blade, wherein the outer cooling groove may be a groove spirally arranged along the outer side surface of the lower mold core, or a groove formed by combining two spirally arranged grooves of the lower mold core main body and the lower mold base.

As shown in fig. 2, a lower die base plate 6 is arranged below the lower die core, and a cooling water outlet 6154 for water outlet, a cooling water inlet 62 for water inlet, and an exhaust duct 9 for exhaust gas are respectively arranged on the lower die base plate 6.

In this scheme, lower mould subassembly still includes the material pole 8 of drawing that the center department of lower mould base was fixed to be set up and the pushing equipment that can move about from top to bottom, draws the upper end of material pole 8 to be equipped with and is used for shunting the toper pointed end of the passageway 7 of moulding plastics. The prior art adopts the structure of the tapered tip material pulling rod 8, so that the cooling time of the material handle 15 is reduced while the flowing smoothness of the injection molding material is improved, and the production efficiency is improved, but the contact area between the tapered tip and the material handle 15 is larger, so that the separation of the material handle and the material pulling rod when the material handle 15 is clamped and taken by a subsequent manipulator is inconvenient. This scheme is through pushing away the material pole 8 with original drawing of pulling and having divided into present drawing of material pole 8 and pushing away material spare two parts, and after the fan blade separates with last mould core 3, pushing away material spare ability upward movement makes material handle 15 and drawing of material pole 8 separation, and the material handle separates with pushing away the material spare when the follow-up manipulator clamp is got to the time of being convenient for.

As shown in fig. 2, the injection channel 7 comprises a first channel section at the center of the upper mold core 3, and a plurality of second channel sections communicated from the lower end of the first channel section to the mold cavity; the second channel section is positioned on the joint surface of the upper mold core 3 and the lower mold core; the conical tip of the material pulling rod 8 is positioned at the intersection of the first channel section and the second channel section of the injection channel 7. This scheme will draw the toper pointed end of material pole 8 to locate the first passageway section and the second passageway section intersection of the passageway 7 of moulding plastics, and on the one hand, the toper is drawn the toper pointed end of material pole 8 and is still played the reposition of redundant personnel effect, can shunt the material of moulding plastics, promotes the smooth and easy nature of the flow of the material of moulding plastics. On the other hand, the material handle 15 formed at the intersection of the first channel section and the second channel section is greatly thinned by adopting the conical tip structure, so that raw materials are saved, the cooling time of the material handle 15 is shortened, and the production efficiency is improved.

As shown in fig. 2, the pushing member is a pushing tube sleeved on the material pulling rod 8, and the pushing tube can axially move relative to the material pulling rod 8, so that the material handle 15 is separated from the material pulling rod 8. According to the scheme, the pushing piece is set to be the pushing pipe sleeved on the material pulling rod 8, when injection molding is conducted, the upper end of the pushing pipe can be connected with the material handle 15 to a certain degree, after injection molding is completed, after the upper mold core 3 is separated from the fan blade, the pushing pipe can move axially along the material pulling rod 8, the formed material handle is separated from the material pulling rod 8, then the material handle 15 is clamped by the manipulator, the fan blade is separated from the pushing pipe, at the moment, only the circle at the uppermost end of the pushing pipe is connected with the material handle 15, the pushing pipe can be easily separated from the material handle 15, and the problem that the material handle 15 is partially damaged due to the fact that the contact area between the conical tip of the material pulling rod 8 and the material handle 15 is large and the material handle is difficult to separate is solved.

The above is only the specific implementation manner of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.

Claims (9)

1. A forming die of a novel cross-flow fan blade comprises an upper die assembly and a lower die assembly; the upper die assembly comprises an upper die base (1) and an upper die core arranged in the upper die base (1); the lower die assembly comprises a lower die base and a lower die core arranged in the lower die base; the upper mold core is butted with the lower mold core to form a mold cavity for filling injection molding materials and forming the fan blades, and an injection molding channel (7) for conveying the injection molding materials to the mold cavity and obtaining a material handle after injection molding; the method is characterized in that: the lower die assembly further comprises a material pulling rod (8) fixedly arranged at the center of the lower die base and a material pushing piece capable of moving up and down, and a conical tip used for shunting the injection molding channel (7) is arranged at the upper end of the material pulling rod (8).

2. The forming die of the novel cross-flow fan blade as claimed in claim 1, wherein: the injection molding channel (7) comprises a first channel section positioned at the center of the upper mold core and a plurality of second channel sections communicated from the lower end part of the first channel section to the mold cavity; the second channel section is positioned on the joint surface of the upper mold core and the lower mold core; the conical tip of the material pulling rod (8) is positioned at the intersection of the first channel section and the second channel section of the injection molding channel (7).

3. The forming die of the novel cross-flow fan blade as claimed in claim 2, wherein: the material pushing part is a pushing pipe (82) sleeved on the material pulling rod (8), and the pushing pipe (82) can axially move relative to the material pulling rod (8) to separate the material handle from the material pulling rod (8).

4. The forming die of the novel cross-flow fan blade as claimed in claim 1, wherein: an inner cooling loop and an outer cooling loop are arranged on the lower mold core, and the lower mold core comprises a lower mold core main body (4) and a lower mold core insert (5) embedded in the center of the lower mold core main body (4); the inner cooling loop comprises a side surface cooling groove (12) for cooling the inner side surface of the fan blade, a top surface cooling groove (11) for cooling the disc surface of the fan blade and a water feeding channel for feeding cooling water; the side cooling groove (12) is spirally arranged downwards along the outer side wall surface of the lower mold core insert (5).

5. The forming die of the novel cross-flow fan blade as claimed in claim 4, wherein: the starting end (53) of the side cooling groove (12) is communicated with the top surface of the lower mold core insert (5), and the end of the side cooling groove (12) is connected with a water outlet (54) arranged on the bottom surface of the lower mold core insert (5).

6. The forming die of the novel cross-flow fan blade as claimed in claim 5, wherein: the water feeding channel penetrates through the upper surface and the lower surface of the lower mold core insert (5); the water feeding channel inlet (51) is arranged on the bottom surface of the lower mold core insert (5), and the water feeding channel outlet (52) is arranged on the top surface of the lower mold core insert (5).

7. The forming die of the novel cross-flow fan blade as claimed in claim 6, wherein: the inner end of the top surface cooling groove (11) is communicated with the outlet (52) of the water feeding channel, and the outer end is communicated with the starting point end (53) of the side surface cooling groove (12).

8. The forming die of the novel cross-flow fan blade as claimed in claim 7, wherein: the top surface cooling groove (11) is arranged on the bottom plane of the lower die core main body (4), and the lower die core insert (5) encloses the sealed top surface cooling groove (11).

9. The forming die of the novel cross-flow fan blade as claimed in claim 4, wherein: the outer cooling loop comprises an outer cooling groove (13) arranged on the outer side wall surface of the lower mold core main body (4), and a water inlet channel and a water outlet channel which are communicated with the outer cooling groove (13).

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