CN221292128U

CN221292128U - Front frame injection molding glue feeding structure of highlight display screen

Info

Publication number: CN221292128U
Application number: CN202322790610.3U
Authority: CN
Inventors: 王超; 卢鹏; 章欣
Original assignee: Feirongda Technology Jiangsu Co ltd
Current assignee: Feirongda Technology Jiangsu Co ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-07-09
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses an injection molding glue feeding structure of a front frame of a highlight display screen, which comprises a front mold and a rear mold buckled and connected with the front mold, wherein a cavity area between the front mold and the rear mold is a product forming area, a groove is formed in one side of the front mold close to the rear mold and is internally provided with a front mold core, a hot runner plate is arranged on one side of the front mold far away from the rear mold and is fixedly connected with the front mold through a cover plate, a primary hot sprue is arranged in the center of the hot runner plate, and at least four groups of secondary hot sprue penetrating through the front mold and connected with the product forming area are arranged on one side of the hot runner plate close to the front mold. According to the glue feeding structure scheme, the appearance of the front frame product can be changed through the plurality of glue feeding points of the hot runner, so that the raw material consumption is saved, the product development period is shortened, and the product production cost is reduced.

Description

Front frame injection molding glue feeding structure of highlight display screen

Technical Field

The utility model relates to the technical field of injection molding, in particular to an injection molding glue feeding structure for a front frame of a highlight display screen.

Background

Along with the popularization of quick payment, in order to better occupy market share, the POS machine tends to be white and bright in appearance surface, under the same product size, the development difficulty of the size, weight and appearance mould of injection products is increased greatly, and the front frame mould of the POS machine manufactured at present adopts a large side glue-feeding structure and a small side glue-feeding structure.

The large side glue feeding structure can lengthen the cooling time of the product due to the too large flow channel, the complicated removal of the flow channel leads to the increase of cost, the gram weight of the flow channel leads to the low utilization rate of raw materials, the increase of the production cost of the product, and the combination line of the appearance surface of the product can not be improved to influence the appearance of the product; the gram weight of the small side glue inlet structure flow channel is reduced to some extent, but the product appearance surface bonding line cannot be improved because each glue inlet cannot be independently adjusted, so that the product appearance is affected.

Disclosure of utility model

According to the technical problem to be solved, the front frame injection molding glue feeding structure of the highlight display screen is provided, and the glue feeding scheme can realize appearance change of a front frame product through a plurality of glue feeding points of a hot runner, so that the consumption of raw materials is saved, the development period of the product is shortened, and the production cost of the product is reduced.

In order to achieve the above purpose, the utility model discloses an injection molding glue feeding structure of a front frame of a highlight display screen, which comprises a front mold and a rear mold buckled with the front mold, wherein a cavity area between the front mold and the rear mold is a product forming area, a groove is formed in one side of the front mold, which is close to the rear mold, and a front mold core is arranged in the groove, a hot runner plate is arranged on one side of the front mold, which is far away from the rear mold, and is fixedly connected with the front mold through a cover plate, a primary hot sprue is arranged in the center of the hot runner plate, and at least four groups of secondary hot sprue penetrating through the front mold and connecting with the product forming area are arranged on one side of the hot runner plate, which is close to the front mold.

Further, the hot runner plate is installed in the central point that the front mould is close to apron one side and puts, and the hot runner plate includes two sets of parallel arrangement's inclined section and connects the linkage segment at two sets of inclined section centers, and the linkage segment center that the hot runner plate is close to apron one side is provided with into the glue mouth, and the upper and lower both sides of hot runner plate all are provided with crooked control by temperature change passageway.

Further, the glue inlet extends downwards to be connected to a second horizontally unfolded part, and the runner ports at the tail ends of the second runners are respectively connected with a third runner at the inner side of the secondary heat pump nozzle.

Furthermore, the central connecting line of two groups of adjacent runner ports of the second runner is in a parallelogram structure.

Furthermore, the front mold core is installed in the groove of the front mold through the clamping connection of the fixing block, a front mold core sprue hole corresponding to the position of the secondary hot sprue is formed in the front mold core, a front mold sprue hole corresponding to the position of the secondary hot sprue is formed in the front mold, and the diameter of the front mold sprue hole is larger than that of the front mold core sprue hole.

Still further, the product shaping district is including being the product effective area of frame formula and setting up the first runner in the inboard of product effective area, first runner be connected with every interior limit wall of product effective area respectively, and first runner is the form of buckling, including with the parallel section of product effective area interior limit wall parallel and with the crossing section of product effective area interior limit wall crossing, parallel section is connected with product effective area interior limit wall through the runner that is trapezium structure.

Furthermore, one end of the intersecting section far away from the effective area of the product is a glue feeding point, the thickness of the glue feeding point is higher than that of the first flow passage, and the glue feeding point corresponds to the position of the second-stage hot sprue.

Compared with the prior art, the utility model has the beneficial effects that: the utility model discloses an injection molding glue feeding structure of a front frame of a highlight display screen, wherein each glue feeding point of improved four-point type hot runner side glue feeding can be adjusted in temperature through a hot runner temperature control box, so that the problem of an appearance bonding line of an injection molding product is solved, the function of small waste materials of a runner is realized by adjusting a hot runner and a mold glue feeding mode, the problem of the appearance of the product is solved, the waste materials of the runner are reduced, the utilization rate of raw materials is improved, the production cost is reduced, and the yield is improved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is an exploded view of the glue inlet structure of the present utility model.

FIG. 2 is a cross-sectional view of the glue feeding structure of the present utility model.

Fig. 3 is a front-mode structure diagram of the present utility model.

Fig. 4 is a diagram showing the structure of the front mold insert according to the present utility model.

Fig. 5 is a rear mold structure diagram of the present utility model.

Fig. 6 is a view showing a structure of a hot runner plate according to the present utility model.

FIG. 7 is a cross-sectional view of a hot runner plate of the present utility model.

Fig. 8 is an enlarged view a of a portion of fig. 1 in accordance with the present utility model.

In the figure: 010 is a cover plate; 011 is a hot runner plate; 111 is an inclined section; 112 is a connecting section; 113 is a glue inlet; 114 is a temperature controlled passage; 115 is a second flow path; 116 is the orifice of the flow channel; 012 is a secondary heat pump nozzle; 013 is a primary heat pump nozzle; 121 is a third flow path; 020 is a front mold; 021 is front mold core; 022 is the front die sprue hole; 023 is the front mold core sprue hole; 030 is the effective area of the product; 050 is a rear die; 501 is a glue feeding point; 502 is a first flow path; 503 is a parallel segment; 504 is a gate; 505 are intersecting segments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In one embodiment of the utility model, as shown in fig. 1, the glue feeding structure comprises a front mold 020 and a rear mold 050 which is buckled and connected with the front mold 020, a cavity area between the front mold 020 and the rear mold 050 is a product forming area, a melt and the product forming area are cooled and solidified to form a product blank, a groove is formed on one side of the front mold 020, which is close to the rear mold, and a front mold 021 is arranged in the groove, a hot runner plate 011 is arranged on one side of the front mold 020, which is far away from the rear mold, the hot runner plate 011 is fixedly connected with the front mold 020 through a cover plate 010, the other side of the hot runner plate 011 is connected with an injection molding machine nozzle, the center of the hot runner plate 011 is provided with a first-stage hot nozzle 013, the first-stage hot nozzle 013 is matched with the injection molding machine nozzle, and at least four groups of second-stage hot nozzles 012, which penetrate the front mold 020 and the front mold 021, are connected with the product forming area 030, are arranged on one side of the hot runner plate, the glue feeding scheme has fewer structures, the mold structure is simple, and the appearance of the front frame product is changed by adjusting the hot runner and the glue feeding mode, and the light waste is realized.

As shown in fig. 4, the hot runner plate 011 is installed in the center position of the front mold 020 near one side of the injection cover plate 010, the hot runner plate 011 includes two groups of inclined sections 111 arranged in parallel and a connecting section 112 connecting the centers of the two groups of inclined sections 111, the center of the connecting section 112 of the hot runner plate 011 near one side of the cover plate 010 is provided with a glue inlet 113, the upper and lower sides of the hot runner plate 011 are provided with curved temperature control channels 114, the hot runner plate 011 has a splitting effect, temperature control components are installed in the temperature control channels 114 for temperature adjustment, and each two-stage hot sprue is independently controlled, so that the four-point hot runner meets different temperature requirements.

As shown in fig. 5, the glue inlet 114 extends downward to be connected to the second flow channel 115 which is unfolded horizontally, the flow channel openings 116 at the tail end of the second flow channel 115 are respectively connected with the third flow channel 121 at the inner side of the second hot sprue 012, the central connecting lines of two groups of adjacent flow channel openings 116 of the second flow channel 115 are in a parallelogram structure, and each glue inlet point of the improved four-point hot flow channel side glue inlet can realize temperature adjustment through a temperature control assembly at the position of the hot flow channel plate 011, so that the problem of the appearance combination line of injection products is solved.

As shown in fig. 2 and 3, the front mold insert 021 is mounted in a groove of the front mold 020 by a fixing block in a clamping manner, a front mold insert sprue hole 023 corresponding to the position of the second-stage sprue 012 is formed in the front mold insert 021, a front mold sprue hole 022 corresponding to the position of the second-stage sprue 012 is formed in the front mold 020, the diameter of the front mold sprue hole 022 is larger than that of the front mold insert sprue hole 023, and the front mold sprue hole 022 corresponds to the position of the front mold insert sprue hole 023, so that the second-stage sprue 012 can be mounted on the inner side of the front mold 020 and the front mold insert 021 smoothly.

As shown in fig. 6, the product forming area includes a product effective area 030 with a frame shape and a first runner 502 disposed inside the product effective area 030, the first runner 502 is connected with each inner edge wall of the product effective area 030, the first runner 502 is in a bent shape, and includes a parallel section 321 parallel to the inner edge wall of the product effective area 030 and an intersecting section 505 intersecting with the inner edge wall of the product effective area 030, the parallel section 503 is connected with the inner edge wall of the product effective area 030 through a gate 504 with a trapezoid structure, and the bent first runner 502 structure increases the stroke between the second-stage heat sprue 012 and the product effective area 030, thereby reducing the injection pressure, improving the forming yield of the product effective area 030, the first runner 502 and the gate 504 are water gap material parts which need to be removed for the product, and the front frame structure of the display screen is obtained after the product effective area 030 is formed.

As shown in fig. 6 and 7, the end of the intersecting section 505 away from the product effective area 030 is a glue inlet point 501, the thickness of the glue inlet point 501 is higher than that of the first flow channel 502, the glue inlet point 501 corresponds to the two-stage hot sprue 012 one by one, and the higher glue inlet point 501 ensures that the melt smoothly enters the first flow channel 502 to finish product forming.

The working principle of the embodiment is as follows: the high-temperature plastic melt is injected into a mold at a high speed and high pressure through a nozzle of an injection molding machine, the plastic melt enters a hot runner system through a hot sprue, the characteristics of the current product are combined, the mold hot runner plate realizes that the melt is split into four points, the melt enters a second-stage hot sprue, the temperature control of an external heat source of the second-stage hot sprue is realized through a hot runner temperature control assembly, the four-point hot runner realizes different temperatures, the melt enters a mold cavity from a glue inlet point, the product molding is started after the first runner is filled, and after the molding, water gap materials such as the first runner and a sprue are removed to obtain a front frame structure of the display screen.

The points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed; second, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The above examples are merely illustrative of the present utility model and are not meant to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.

Claims

1. The utility model provides a high light display screen front bezel advances gluey structure of moulding plastics, includes front mould (020) and back mould (050) of being connected with front mould (020) lock, its characterized in that, cavity region between front mould (020) and back mould (050) is the product shaping district, front mould (020) are close to one side of back mould (050) and are provided with front mould benevolence (021) in the recess, and front mould (020) are kept away from one side of back mould and are provided with hot runner board (011), and hot runner board (011) pass through apron (010) and front mould (020) fixed connection, and hot runner board (011) center is provided with one-level heat and spouts mouth (013), and one side that hot runner board (011) is close to front mould (020) is installed four sets of and is run through front mould (020), front mould benevolence (021) and second grade heat that product shaping district communicates and spout (012).

2. The injection molding and glue feeding structure for the front frame of the highlight display screen according to claim 1, wherein the hot runner plate (011) is installed at the center position of one side of the front mold (020) close to the cover plate (010), the hot runner plate (011) comprises two groups of inclined sections (111) which are arranged in parallel and a connecting section (112) which is connected with the centers of the two groups of inclined sections (111), a glue inlet (113) is formed in the center of the connecting section (112) of the hot runner plate (011) close to one side of the cover plate (010), and bent temperature control channels (114) are formed in the upper side and the lower side of the hot runner plate (011).

3. A front frame injection molding glue-feeding structure of a highlight display screen according to claim 2, wherein the glue-feeding opening (113) extends downwards to be connected to a second runner (115) which is unfolded horizontally, and runner openings (116) at the tail ends of the second runners (115) are respectively connected with a third runner (121) at the inner side of the second-stage heat pump nozzle (012).

4. A front frame injection molding structure for a highlight display screen according to claim 3, wherein the central connecting lines of two adjacent groups of runner ports (116) of the second runner (115) are in a parallelogram structure.

5. The front frame injection molding glue-feeding structure of a highlight display screen according to claim 1, wherein the front mold insert (021) is installed in a groove of a front mold (020) through a fixing block in a clamping way, a front mold insert sprue hole (023) corresponding to the position of a secondary hot sprue (012) is formed in the front mold insert (021), a front mold sprue hole (022) corresponding to the position of the secondary hot sprue (012) is formed in the front mold (020), and the diameter of the front mold sprue hole (022) is larger than that of the front mold insert sprue hole (023).

6. The front frame injection molding glue feeding structure of a highlight display screen according to claim 1, wherein the product forming area comprises a frame-shaped product effective area (030) and first flow passages (502) arranged on the inner side of the product effective area (030), the first flow passages (502) are respectively connected with each inner side wall of the product effective area (030), the first flow passages (502) are bent, and comprise parallel sections (503) parallel to the inner side walls of the product effective area (030) and intersecting sections (505) intersecting the inner side walls of the product effective area (030), and the parallel sections (503) are connected with the inner side walls of the product effective area (030) through pouring gates (504) in a trapezoid structure.

7. The injection molding glue-feeding structure for the front frame of the highlight display screen according to claim 6, wherein one end of the intersecting section (505) far away from the effective area (030) of the product is a glue-feeding point (501), and the glue-feeding point (501) corresponds to the position of the secondary heat pump nozzle (012) one by one.