CN214188250U

CN214188250U - Backflow type hot runner injection mold

Info

Publication number: CN214188250U
Application number: CN202023002582.7U
Authority: CN
Inventors: 刘新春
Original assignee: Yueqing Ruifeng Precision Mould Co ltd
Current assignee: Yueqing Ruifeng Precision Mould Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-09-14
Anticipated expiration: 2030-12-11

Abstract

The utility model relates to a formula of flowing backward hot runner injection mold, including hot runner board, movable mould board and fixed die plate, the movable mould board includes the mould core, and the fixed die plate includes the mould die cavity, and the hot runner board is chewed including flow distribution plate and more than 1 heat, and the heat is chewed including the body, and this internal correspondence the one end of movable mould board is provided with the reposition of redundant personnel chamber, and the reposition of redundant personnel intracavity is provided with the guiding disc, and the one end that the guiding disc corresponds the flow distribution plate is provided with a pan feeding mouth, and the other end of guiding disc is provided with a n discharge gate, be linked together through the guiding gutter between pan feeding mouth and the discharge gate, the discharge gate is diagonal setting, the discharge gate is connected with the discharging pipe, is provided with the injecting glue point more than 1 in the mould die cavity, the discharge end of discharging pipe set up in the mould die cavity corresponds the position of injecting glue point. Through adopting above-mentioned technical scheme, need not to increase a plurality of heat and chew, because of need not to change the hot runner overall arrangement to when improving product quality and the efficiency of moulding plastics, the cost of hot runner has been reduced.

Description

Backflow type hot runner injection mold

Technical Field

The utility model relates to an injection moulding equipment technical field, concretely relates to flow backward formula hot runner injection mold.

Background

The hot runner mold is mainly used for producing plastic products, the melt in the runner is not solidified all the time by utilizing the heating device, and compared with the traditional mold, the hot runner mold has a short forming period and saves more raw materials, so the hot runner mold is widely applied to developed countries and regions of various industries in the world. The main work flow of the hot runner mold for injection molding products is that, at first, the main runner that the hot runner mold set up is injected into from the injection molding machine with the molten plastic raw materials, the molten plastic raw materials flow through the runner, go to the nozzle again, inject into the mold cavity by the nozzle after that, the last plastic products shaping, current hot runner mold can only correspond a product and mould plastics, when moulding plastics the product in batches, then need a large amount of heat to chew, the production cost is improved, and at the in-process of moulding plastics, work efficiency also can descend, the practical value is less, and the hot runner structure is complicated, the price is high, can't be applicable to different molds, also cause its cost to be higher.

SUMMERY OF THE UTILITY MODEL

To sum up, for overcoming prior art's not enough, the utility model provides a formula of flowing backward hot runner injection mold that shaping quality is high.

In order to achieve the above purpose, the utility model provides a following technical scheme: a backward flow type hot runner injection mold comprises a hot flow plate, a movable mold plate and a fixed mold plate, wherein the movable mold plate comprises a mold core, the fixed die plate comprises a die cavity, the heat flow plate comprises a flow distribution plate and more than 1 heat nozzle, the hot nozzle comprises a body, a shunting cavity is arranged at one end of the body corresponding to the movable template, a diversion disc is arranged in the diversion cavity, a feeding port is arranged at one end of the diversion disc corresponding to the diversion plate, the other end of the diversion disc is provided with n discharge ports, the feed port is communicated with the discharge ports through a diversion trench, the discharge ports are arranged in a diagonal manner, n is a double number which is more than 1 and less than 5, the discharge hole is connected with a discharge pipe, more than 1 glue injection point is arranged in the die cavity, and the discharge end of the discharge pipe is arranged in the position, corresponding to the glue injection point, in the mold cavity.

Through adopting above-mentioned technical scheme, the high-pressure melting plastic that will directly spout from main hot runner passes through the flow distribution plate, direct injection to the mould cavity is chewed to rethread heat, high-pressure melting plastic direct impact mould cavity surface has been avoided, thereby the quality and the mould life of shaping product have been improved, and chew through heat and beat on the product wall, make its direct forming, need not the runner and arrange useless, shorten production cycle, reduce the cost, and simultaneously, the multiple spot injecting glue, the product is filled sooner, production cycle is shorter, simultaneously because injection pressure reduces, the mould life-span is longer, diagonal angle injection, pressure balance, improve product shaping quality, simultaneously through the cooperation of guiding disc and discharging pipe, need not to increase a plurality of heat and chew, consequently, need not to change the hot runner overall arrangement, thereby when improving product quality and injection molding efficiency, the cost of hot runner has been reduced.

The utility model discloses further set up: the feeding port is connected with the feeding cavity, a heat insulation sleeve is arranged outside the feeding cavity, and a heating plate is arranged above the flow guide plate and surrounds the feeding port.

Through adopting above-mentioned technical scheme, make from the deflector get into the melten gel of hot feed inlet intracavity and under the protection of insulation cover, slow down the speed of its cooling, and the deflector top sets up the board that generates heat, increase the temperature in feed inlet chamber, further slow down its cooling rate, make the melten gel of feed inlet intracavity get into the deflector more smoothly through the pan feeding mouth simultaneously, compare in directly adopting the multicavity hot nozzle and need multiunit heating element, adopt the deflector, when guaranteeing the quality and the speed of its melten gel, reduce its cost, the hot nozzle of present multicavity only can be used for the less product of production size simultaneously, can't pull open the interval between the injecting glue point to the product of great size.

The utility model discloses further set up: the discharging pipe include with the connecting pipe that the discharge gate links to each other and with injecting glue point complex injecting glue pipe, injecting glue pipe is "L" type of falling, injecting glue pipe include with but the connecting pipe adjustable connection's linkage segment and injection section.

Through adopting above-mentioned technical scheme, through adjusting the connection of injecting glue pipe and connecting pipe, change the interval between two injection sections, applicable in the mould of different sizes.

The utility model discloses further set up: the connecting section is in threaded connection with the connecting pipe.

Through adopting above-mentioned technical scheme, threaded connection strengthens its stability of connecting.

The utility model discloses further set up: the flow guide disc corresponds the center of one end of the discharge hole is provided with an adjusting shaft for adjusting the position of the discharge pipe.

Through adopting above-mentioned technical scheme, rotate the guiding disc through the regulating spindle, change the position of discharge gate, can adjust according to the different injecting glue points of mould, applicable in different moulds, need not redesign hot runner system.

The following describes embodiments of the present invention with reference to the drawings and examples.

Drawings

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a side view of a partial structure of an embodiment of the present invention;

FIG. 3 is a schematic view of the internal structure of the hot nozzle according to the embodiment of the present invention;

FIG. 4 is a schematic view of a diversion plate and a discharge pipe according to an embodiment of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a partial structure diagram of a first embodiment of the present invention;

fig. 7 is a partial structural view of a second embodiment of the present invention;

reference numerals: 1. the hot runner, 11, a splitter plate, 12, a hot nozzle, 121, a body, 122, a splitter cavity, 123, a feeding cavity, 124, a thermal insulation sleeve, 125, a heating plate, 2, a movable mold plate, 21, a mold core, 3, a fixed mold plate, 31, a mold cavity, 311, a glue injection point, 4, a flow guide disc, 41, a feeding port, 42, a discharging port, 43, a flow guide groove, 44, an adjusting shaft, 5, a discharging pipe, 51, a connecting pipe, 52, a glue injection pipe, 521, a connecting section and 522, an injection section.

Detailed Description

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Referring to fig. 1-7, the back-flow hot runner injection mold disclosed in this embodiment includes a hot runner plate 1, a movable mold plate 2, and a fixed mold plate 3, the movable mold plate 2 includes a mold core 21, the fixed mold plate 3 includes a mold cavity 31, the hot runner plate 1 includes a splitter plate 11 and more than 1 hot nozzle 12, the hot nozzle 12 includes a body 121, a splitter cavity 122 is disposed in the body 121 corresponding to one end of the movable mold plate 2, a diversion disc 4 is disposed in the splitter cavity 122, a feeding port 41 is disposed at one end of the diversion disc 4 corresponding to the splitter plate 11, n discharging ports 42 are disposed at the other end of the diversion disc 4, the feeding port 41 is communicated with the discharging port 42 through a diversion trench 43, the discharging port 42 is diagonally disposed, n is a double number greater than 1 and less than 5, a discharging pipe 5 is connected to the discharging port 42, more than 1 glue injection point 311 is disposed in the mold cavity 31, the discharge end of the discharge pipe 5 is arranged in the mold cavity 31 at a position corresponding to the glue injection point 311.

The embodiment further provides that: the feeding port 41 is connected with the feeding cavity 123, a heat insulation sleeve 124 is arranged outside the feeding cavity 123, a heating plate 125 is arranged above the flow guide plate 4, and the heating plate 125 surrounds the feeding port 41.

The embodiment further provides that: an adjusting shaft 44 for adjusting the position of the discharge pipe 5 is arranged at the center of one end of the flow guide disc 4 corresponding to the discharge hole 42.

The embodiment further provides that: the discharging pipe 5 comprises a connecting pipe 51 connected with the discharging port 42 and a glue injection pipe 52 matched with the glue injection point 311, the glue injection pipe 52 is of an inverted L shape, and the glue injection pipe 52 comprises a connecting section 521 and an injection section, wherein the connecting section 521 and the injection section are adjustably connected with the connecting pipe 51.

The embodiment further provides that: the connection section 521 is screwed to the connection pipe 51.

The above-mentioned "between" does not only mean between orientations and positions, but also means between the interactions of different parts.

Although used more herein: the heat flow plate 1, the flow distribution plate 11, the heat nozzle 12, the body 121, the flow distribution cavity 122, the feeding cavity 123, the heat insulation sleeve 124, the heating plate 125, the movable mold plate 2, the mold core 21, the fixed mold plate 3, the mold cavity 31, the glue injection point 311, the flow guide plate 4, the feeding port 41, the discharging port 42, the flow guide groove 43, the adjusting shaft 44, the discharging pipe 5, the connecting pipe 51, the glue injection pipe 52, the connecting section 521, the injection section and other terms are used, but the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a flow backward formula hot runner injection mold which characterized in that: including hot runner board, movable mould board and fixed mould board, the movable mould board includes the mould core, the fixed mould board includes the mould die cavity, the hot runner board is chewed including flow distribution plate and more than 1 heat, the heat is chewed including the body, this internal correspondence the one end of movable mould board is provided with the reposition of redundant personnel chamber, the reposition of redundant personnel intracavity is provided with the guiding disc, the one end that the guiding disc corresponds the flow distribution plate is provided with a pan feeding mouth, the other end of guiding disc is provided with a n discharge gate, be linked together through the guiding gutter between pan feeding mouth and the discharge gate, the discharge gate is the diagonal setting, and n is for being greater than 1 and being less than 5 the dual, the discharge gate is connected with the discharging pipe, be provided with the injecting glue point more than 1 in the mould die cavity, the discharge end of discharging pipe set up in the.

2. The back-flow hot runner injection mold of claim 1, wherein: the feeding port is connected with the feeding cavity, a heat insulation sleeve is arranged outside the feeding cavity, and a heating plate is arranged above the flow guide plate and surrounds the feeding port.

3. The back-flow hot runner injection mold of claim 1, wherein: the discharging pipe include with the connecting pipe that the discharge gate links to each other and with injecting glue point complex injecting glue pipe, injecting glue pipe is "L" type of falling, injecting glue pipe include with but the connecting pipe adjustable connection's linkage segment and injection section.

4. The back-flow hot runner injection mold of claim 3, wherein: the connecting section is in threaded connection with the connecting pipe.

5. The back-flow hot runner injection mold of claim 1, wherein: the flow guide disc is provided with an adjusting shaft used for adjusting the position of the discharge pipe corresponding to the center of one end of the discharge hole.