CN216465935U

CN216465935U - Needle valve hot nozzle structure for TPU plastic mobile phone protective sleeve

Info

Publication number: CN216465935U
Application number: CN202122749539.5U
Authority: CN
Inventors: 李伟茂; 赵成军; 蒋永雄
Original assignee: Dongguan Baosijie Die Technology Co ltd
Current assignee: Dongguan Baosijie Die Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-05-10
Anticipated expiration: 2031-11-10

Abstract

The utility model discloses a needle valve hot nozzle structure for a TPU plastic mobile phone protective sleeve, which comprises a hot nozzle body, a needle, a nozzle core, a heat insulation cap and a heating ring, wherein the heating ring is sleeved on the hot nozzle body, the nozzle core is arranged in the bottom end of the hot nozzle body and extends out of the hot nozzle body, the heat insulation cap is sleeved on the bottom end of the nozzle core, the needle is arranged in the hot nozzle body and extends out of the nozzle core and the heat insulation cap, and the nozzle core is made of beryllium copper material. The utility model can quickly transfer the heat of the hot nozzle body to the nozzle core, prevent heat loss, prevent the heat of the nozzle core from flowing to the valve needle nozzle head, reduce the contact area between the valve needle nozzle head and the mould, prevent the heat of the valve needle nozzle head from flowing to the mould, keep the temperature of the melt adhesive in a hot runner system consistent, avoid yellow spots of a formed product due to overheating or white spots due to low temperature, reduce injection molding defects, improve injection molding quality, ensure product production quality, reduce heat loss, avoid ineffective heating, reduce power consumption and realize green production.

Description

Needle valve hot nozzle structure for TPU plastic mobile phone protective sleeve

Technical Field

The utility model relates to the field of injection molding processing, in particular to a needle valve hot nozzle structure for a TPU plastic mobile phone protective sleeve.

Background

When the TPU plastic is used for injection molding of the transparent mobile phone protective sleeve, the temperature of the existing hot runner is difficult to control, so that the phenomenon of yellowing easily occurs at high temperature and the phenomenon of white spots easily occurs at low temperature during injection molding of the TPU plastic, the product qualification rate is influenced, the production quality is low, and the production requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a needle valve hot nozzle structure for a TPU plastic mobile phone protective sleeve, aiming at overcoming the defects in the prior art and solving the problems in the background technology.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a needle valve hot nozzle structure to TPU plastics cell-phone protective sheath, includes hot nozzle body, needle, mouth heart, thermal-insulated cap and heating collar, the heating collar cover is established hot nozzle body is last, the mouth heart is installed in the bottom of hot nozzle body and follow hot nozzle body stretches out, thermal-insulated cap cover is established on the bottom of mouth heart, the needle is installed hot nozzle is originally internal and follow the mouth heart with thermal-insulated cap stretches out, the mouth heart is made by beryllium copper material.

As a further elaboration of the above technical solution:

in the technical scheme, the hot nozzle comprises a nozzle sleeve, wherein the nozzle sleeve is sleeved on the bottom end of the nozzle core and is arranged in the hot nozzle body.

In the technical scheme, the heat insulation cap is bowl-shaped and is pressed on the outer side surface of the bottom end of the nozzle core.

In the above technical scheme, the inside bottom of hot mouth body is provided with the mounting groove, the mouth heart is installed in the mounting groove.

In the technical scheme, the nozzle core is connected with the mounting groove through threads.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the nozzle core is made of beryllium copper, so that heat of the hot nozzle body can be quickly transferred to the nozzle core, heat loss is prevented, the heat of the nozzle core is prevented from flowing to the valve needle nozzle head through the arrangement of the heat insulation cap, the contact area between the valve needle nozzle head and the mold is reduced through the arrangement of the nozzle sleeve, the heat of the valve needle nozzle head is prevented from flowing to the mold, the temperature of molten glue in a hot runner system can be kept consistent, yellow spots of a formed product due to overheating or white spots due to too low temperature are avoided, the injection molding defect is reduced, the injection molding quality is improved, the production quality of the product is ensured, meanwhile, heat loss is reduced, ineffective heating is avoided, the power consumption is reduced, and green production is realized.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view of a hot tip body and heating collar of the present invention;

fig. 3 is a partial cross-sectional view of the present invention.

In the figure: 1. a hot nozzle body; 2. a valve needle; 3. a mouth core; 4. a heat insulating cap; 5. heating a ring; 6. a mouth sleeve; 7. and (4) mounting the groove.

Detailed Description

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

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-3, a needle valve hot nozzle structure to TPU plastics cell-phone protective sheath, includes hot nozzle body 1, needle 2, mouth heart 3, thermal-insulated cap 4 and heating collar 5, the heating collar 5 cover is established on the hot nozzle body 1, mouth heart 3 is installed in the bottom of hot nozzle body 1 and follow hot nozzle body 1 stretches out, thermal-insulated cap 4 cover is established on the bottom of mouth heart 3, needle 2 is installed in the hot nozzle body 1 and is followed mouth heart 3 with thermal-insulated cap 4 stretches out. Specifically, the heat insulation cap 4 is arranged in a bowl shape and is pressed on the outer side surface of the bottom end of the nozzle core 3. The arrangement of the heat insulation cap 4 reduces the contact area of the valve needle nozzle head and the mould, and prevents the heat of the valve needle nozzle head from flowing to the mould. The mouth core 3 is made of beryllium copper material. Beryllium copper is an alloy with good comprehensive performance, has high thermal conductivity, can quickly transfer the heat of the hot nozzle body 1 to the nozzle core 3, prevents heat loss and ensures the temperature of a hot runner system.

Specifically, as shown in fig. 3, the injection nozzle further comprises a nozzle sleeve 6, wherein the nozzle sleeve 6 is sleeved on the bottom end of the nozzle core 3 and is arranged in the hot nozzle body 1 to prevent heat of the nozzle core 3 from flowing to the valve needle nozzle head, so that heat loss is prevented.

In this embodiment, as shown in fig. 2, an installation groove 7 is provided at the bottom end inside the hot nozzle body 1, and the nozzle core 3 is installed in the installation groove 7. Wherein, mouth core 3 with be connected through the screw thread between the mounting groove 7 for the equipment of mouth core 3 and hot mouth body 1 is more reliable and more stable, guarantees the stability of moulding plastics.

According to the utility model, the nozzle core 3 is made of beryllium copper, so that heat of the hot nozzle body 1 can be quickly transferred to the nozzle core 3, heat loss is prevented, the heat of the nozzle core 3 is prevented from flowing to the valve needle nozzle head through the arrangement of the heat insulation cap 4, the contact area between the valve needle nozzle head and a mold is reduced through the arrangement of the nozzle sleeve 6, the heat of the valve needle nozzle head is prevented from flowing to the mold, the temperature of molten rubber in a hot runner system can be kept consistent, yellow spots of a formed product due to overheating or white spots due to too low temperature are avoided, the injection molding defect is reduced, the injection molding quality is improved, the production quality of the product is ensured, meanwhile, heat loss is reduced, ineffective heating is avoided, the power consumption is reduced, and green production is realized.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. The utility model provides a needle valve hot nozzle structure to TPU plastics cell-phone protective sheath, a serial communication port, includes hot nozzle body, needle, mouth heart, heat-insulating cap and heating collar, the heating collar cover is established on the hot nozzle body, the mouth heart is installed in the bottom of hot nozzle body and follow the hot nozzle body stretches out, heat-insulating cap cover is established on the bottom of mouth heart, the needle is installed this internal and follow of hot nozzle the mouth heart with heat-insulating cap stretches out, the mouth heart is made by beryllium copper material.

2. The needle valve hot nozzle structure for the TPU plastic mobile phone protective sleeve as claimed in claim 1, further comprising a nozzle sleeve, wherein the nozzle sleeve is sleeved on the bottom end of the nozzle core and is arranged in the hot nozzle body.

3. The needle valve hot nozzle structure for the TPU plastic mobile phone protective sleeve as claimed in claim 1, wherein the thermal insulation cap is in a bowl shape and is pressed on the outer side surface of the bottom end of the nozzle core.

4. The needle valve hot nozzle structure for the TPU plastic mobile phone protective sleeve as claimed in claim 1, wherein a mounting groove is formed in the bottom end inside the hot nozzle body, and the nozzle core is mounted in the mounting groove.

5. The needle valve hot nozzle structure for the TPU plastic mobile phone protective sleeve as claimed in claim 4, wherein the nozzle core is connected with the mounting groove through a thread.