CN213245148U - Die assembly - Google Patents

Abstract

The utility model discloses a mold assembly, it includes the B board and is located the A board of B board upside, the setting is piled with the B board to the A board, the upper surface undercut of B board forms down accepts the chamber, the lower surface of A board accepts the chamber on forming upwards to accept, it is equipped with public mould benevolence to accept the intracavity down, on accept the intracavity and be equipped with cavity benevolence, form the die cavity behind public mould benevolence and the cavity benevolence compound die, the B board is equipped with from a plurality of preheating grooves of its upper surface undercut formation, a plurality of preheating grooves are used for the holding hardware. The utility model discloses a mould subassembly sets up and preheats the groove, preheats the groove and is used for preheating the hardware to make mould subassembly during operation can in time utilize the hardware that has preheated, the circulation is reciprocal like this, saves time, laborsaving, economizes the space, the energy can be saved.

Description

Die assembly

Technical Field

The utility model relates to a field of moulding plastics.

Background

The injection molding part is generally composed of hardware used for conducting electricity and a plastic shell wrapped on the outer surface of the hardware, and in the process of producing the injection molding part, the hardware is usually installed in a mold firstly for positioning and then injection molding of the shell is carried out.

Because the temperature of hardware under normal atmospheric temperature state and the plastic of molten condition have great temperature difference, when can lead to the hardware to mould plastics in the mould, can not with mould temperature phase-match, cause the quality and the size of product unstable, the product percent of pass has been reduced, consequently, need add thermal treatment in advance to the hardware, most of present preheating methods are to place the hardware and heat on preheating device, treat that the hardware heating is accomplished the back, take out the hardware from preheating device, put into the hardware again in the mould, operate like this, the transfer process time is long, the hardware can be cooled down, in addition, consider the heat preservation effect, once can not get a plurality of hardware, the operation process is troublesome.

In view of this, the utility model provides a novel mould subassembly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an efficient, energy saving and space saving's mould subassembly to prior art not enough.

The utility model discloses a following technical scheme realizes:

the utility model provides a mold assembly, mold assembly includes the B board and is located the A board of B board upside, the A board with the B board is piled up and is folded the setting, the upper surface undercut of B board forms and accepts the chamber down, the lower surface undercut of A board forms and accepts the chamber, it is equipped with public mould benevolence to accept the intracavity down, on accept the intracavity and be equipped with cavity benevolence, public mould benevolence with form the die cavity behind the cavity benevolence compound die, the B board is equipped with from a plurality of preheating grooves of its upper surface undercut formation, and is a plurality of preheating groove is used for the holding hardware.

Further, a plurality of preheating grooves are arranged around the lower receiving cavity.

Further, the mould subassembly still includes the slider, the hardware certainly shift out and be located preheat the inslot the slider, the slider immigration the B board accept the intracavity down and with accept the intracavity down the cooperation of public mould benevolence, public mould benevolence with behind the compound die of cavity benevolence, the hardware is located the die cavity.

Further, the slider includes the base and is fixed in the location portion of base, the hardware is located location portion.

Furthermore, the hardware is cyclic annular, the hardware cover is located location portion.

Further, the hardware is equipped with the breach, location portion is equipped with the bulge, the breach with the bulge cooperation.

Further, the B board still is equipped with the heating water route, the heating water route is used for a plurality of preheat the inslot the hardware preheats.

Furthermore, the mold assembly is also provided with a runner for communicating the mold cavity with the outside and forming an injection molding opening, and hot-melt plastic is injected into the runner through the injection molding opening and flows into the mold cavity to be cooled to form an injection molding piece.

Furthermore, the die assembly further comprises a die blank and a bottom plate, wherein the die blank is positioned on the lower side of the B plate, and the bottom plate is positioned on the lower side of the die blank.

Furthermore, the hardware is a silicon steel sheet iron core.

Compared with the prior art, the beneficial effects of the utility model are that: the B plate of the die assembly is provided with a plurality of preheating grooves, the silicon steel sheet iron core is preheated before being positioned on the sliding block, namely, the silicon steel sheet iron core can be supplemented into the plurality of preheating grooves arranged on the B plate, after the silicon steel sheet iron core in one preheating groove is used up, the silicon steel sheet iron cores in the other preheating grooves are preheated to the required temperature by the heating water channel, and the steps of circulating, reciprocating, time-saving, labor-saving, space-saving and energy-saving are carried out.

Drawings

FIG. 1 is a perspective view of an injection molded article according to the present invention;

FIG. 2 is a perspective view of the mold assembly of the present invention;

FIG. 3 is an exploded perspective view of the mold assembly shown in FIG. 2;

FIG. 4 is a further exploded perspective view of the mold assembly shown in FIG. 3;

FIG. 5 is a partial block diagram of the mold assembly shown in FIG. 4;

FIG. 6 is a partial block diagram of the mold assembly shown in FIG. 5;

fig. 7 is a matching view of the slide block (with the silicon steel sheet iron core positioned) and the core insert in fig. 6;

fig. 8 is a matching view of the slider and the silicon steel sheet core in fig. 7.

Detailed Description

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

As shown in fig. 1, an injection molding member 10 includes a plastic body 11 and three silicon steel sheet iron cores 12 embedded in the plastic body 11, wherein the three silicon steel sheet iron cores 12 are sequentially arranged along a horizontal direction. Each silicon steel sheet iron core 12 is annular and has a notch 13. When the three silicon steel sheet iron cores 12 are sequentially arranged in the plastic body 11 along the horizontal direction, the notches 13 of the three silicon steel sheet iron cores 12 are located on the same side.

Referring to fig. 2 to 8, the present invention discloses a mold assembly 20, which includes a mold blank 21, a bottom plate 22 located at the lower side of the mold blank, a B plate 23 located at the upper side of the mold blank 21, and an a plate 24 located at the upper side of the B plate 23, wherein the a plate 24 and the B plate 23 are stacked. The surface of the B plate 23 in contact with the a plate 24 is recessed downward to form a lower receiving chamber, that is, the upper surface of the B plate 23 is recessed downward to form a lower receiving chamber. The surface of the a plate 24 that contacts the B plate 23 is recessed upward to form an upper housing chamber, that is, the lower surface of the a plate 24 is recessed upward to form an upper housing chamber. A male die core 25 is arranged in the lower accommodating cavity, a female die core 26 is arranged in the upper accommodating cavity, and the die opening or die closing can be realized between the male die core 25 in the lower accommodating cavity of the B plate 23 and the female die core 26 in the upper accommodating cavity of the A plate 24. After the male mold core 25 and the female mold core 26 are closed, a mold cavity is formed between the male mold core 25 and the female mold core 26. The mold assembly 2 is further provided with a runner (not labeled) for communicating the mold cavity with the outside and forming a glue injection port (not labeled), and the injection molding 10 is formed by injecting hot-melt plastic into the runner through the glue injection port and cooling the hot-melt plastic after the hot-melt plastic flows into the mold cavity.

The mold assembly 20 further includes a slide block 30, and the slide block 30 can move into the lower receiving cavity of the B plate 23 along the horizontal direction and is matched with the core insert 25 in the lower receiving cavity. The slider 30 includes three basal portions 31 arranged along the horizontal direction and three positioning portions 32 fixed to the three basal portions 31 respectively, and three silicon steel sheet iron cores 12 are positioned respectively by the three positioning portions 32, and in this embodiment, three annular silicon steel sheet iron cores 12 are sleeved on the three positioning portions 32 of the slider 30, and the annular silicon steel sheet iron cores 12 are provided with notches 13, and the positioning portions 32 are provided with protrusions 33, and the notches 13 are matched with the protrusions 33. When the slide block 30 moves into the lower accommodating cavity of the B plate 23 along the horizontal direction and is matched with the male die core 25 in the lower accommodating cavity, the female die core 26 in the upper accommodating cavity of the a plate 24 and the male die core 25 in the lower accommodating cavity of the B plate 23 are matched, a die cavity is formed between the male die core 25 and the female die core 26, the three silicon steel sheet iron cores 12 sleeved on the three positioning parts 32 of the slide block 30 are located in the die cavity, and hot-melt plastic is injected into the runner through the glue injection port and flows into the die cavity to be cooled to form the injection molding 10.

The B plate 23 is provided with four preheating grooves 40 formed by being depressed downward from the upper surface thereof, the four preheating grooves 40 are disposed around the lower receiving cavity, and the four preheating grooves 40 are used for receiving the silicon steel sheet iron core 12. The B plate 23 is further provided with a heating water path for preheating the silicon steel sheet iron core 12 in the preheating groove 40. In order to avoid the problem that the surface of the silicon steel sheet iron core 12 in the mold cavity is filled with glue unevenly when injection molding is carried out due to the temperature difference, the silicon steel sheet iron core 12 needs to be preheated before the silicon steel sheet iron core 12 is positioned in the positioning part 32 of the sliding block 30, therefore, in implementation, the silicon steel sheet iron core 12 can be placed in the four preheating grooves 40 formed in the B plate 23 for preheating, and then the silicon steel sheet iron core 12 in the preheating groove 40 is moved out of the preheating groove 40 and positioned in the positioning part 32 of the sliding block 30. Because the B plate 23 of the mold assembly 20 of the present invention is provided with four preheating grooves 40, the silicon steel sheet iron core 12 in the preheating groove 40 can be supplemented in time after the silicon steel sheet iron core 12 in one preheating groove 40 is used up; and after each time the silicon steel sheet iron core 12 in one preheating groove 40 is used up, the silicon steel sheet iron cores 12 in the other three preheating grooves 40 are preheated to the desired temperature by the heating water path, thus the operation is repeated, and the time, the labor, the space and the energy are saved.

The utility model discloses a shaping step of injection molding 10: (1) firstly, sleeving the three silicon steel sheet iron cores 12 in the preheating groove 40 on the three positioning parts 32 of the sliding block 30 for positioning; (2) moving the slide block 30 sleeved with the silicon steel sheet iron core 12 into a lower accommodating cavity of the B plate 23 and matching with a male die core 25 in the lower accommodating cavity; (3) closing the female die core 26 in the upper accommodating cavity of the a plate 24 and the male die core 25 in the lower accommodating cavity of the B plate 23 to form a die cavity, wherein at the moment, the three silicon steel sheet iron cores 12 sleeved on the three positioning parts 32 of the sliding block 30 are positioned in the die cavity; (4) and injecting hot-melt plastic into the runner through the glue injection port, flowing into the mold cavity, and cooling to form the injection molding piece 10.

The utility model discloses a B board 23 of mould subassembly 20 is equipped with four and preheats groove 40, need preheat silicon steel sheet iron core 12 earlier before locating silicon steel sheet iron core 12 in the location portion 32 of slider 30, namely, can place silicon steel sheet iron core 12 in four preheating groove 40 that B board 23 set up earlier and preheat, move out preheating groove 40 with silicon steel sheet iron core 12 in preheating groove 40 again and be located the location portion 32 of slider 30, after every silicon steel sheet iron core 12 that uses up in preheating groove 40, can in time supply silicon steel sheet iron core 12 in this preheating groove 40; and after each time the silicon steel sheet iron core 12 in one preheating groove 40 is used up, the silicon steel sheet iron cores 12 in the other three preheating grooves 40 are preheated to the desired temperature by the heating water path, thus the operation is repeated, and the time, the labor, the space and the energy are saved.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. The utility model provides a mold assembly, its characterized in that, mold assembly includes the B board and is located the A board of B board upside, the A board with the B board is piled up and is folded the setting, the upper surface undercut of B board forms and accepts the chamber down, the lower surface undercut of A board forms and accepts the chamber, it is equipped with public mould benevolence to accept the intracavity down, on accept the intracavity and be equipped with cavity benevolence, public mould benevolence with form the die cavity behind the cavity benevolence compound die, the B board is equipped with from a plurality of preheating grooves of its upper surface undercut formation, and is a plurality of preheating groove is used for the holding hardware.

2. The mold assembly of claim 1, wherein a plurality of the preheating slots are disposed around the lower receiving cavity.

3. The mold assembly of claim 1, further comprising a slide, wherein the hardware is moved out of the preheating groove and positioned on the slide, the slide is moved into the lower receiving cavity of the B plate and is matched with the male mold insert in the lower receiving cavity, and after the male mold insert and the female mold insert are closed, the hardware is located in the mold cavity.

4. The die assembly of claim 3, wherein the slide includes a base and a locating portion fixed to the base, the hardware being located at the locating portion.

5. The die assembly of claim 4, wherein the hardware is ring-shaped and is sleeved in the positioning portion.

6. A die assembly according to claim 5, wherein the hardware is provided with a notch and the locating portion is provided with a projection, the notch cooperating with the projection.

7. The mold assembly of claim 1, wherein said B plate is further provided with a heating water circuit for preheating said hardware in a plurality of said preheating slots.

8. The mold assembly of claim 1, further comprising a runner connecting the mold cavity to the outside and forming a gate, wherein the injection molded part is formed by injecting hot-melt plastic into the runner through the gate and into the mold cavity and cooling the hot-melt plastic.

9. The mold assembly of claim 1 further comprising a mold blank on the underside of the B plate and a base plate on the underside of the mold blank.

10. The die assembly of claim 1, wherein the hardware is a silicon steel sheet core.

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