CN215969883U

CN215969883U - Special fixed mode side cementing structure

Info

Publication number: CN215969883U
Application number: CN202122213520.9U
Authority: CN
Inventors: 梁鹰堂; 季传武; 曹昌明
Original assignee: Changsha Best Hot Runner Technology Co ltd
Current assignee: Changsha Best Hot Runner Technology Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-08
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to the technical field of heat nozzles, in particular to a special fixing mode side cementing structure which comprises a U-shaped sheath, an upper heat nozzle body and a lower heat nozzle body detachably connected with the upper heat nozzle body, wherein the lower heat nozzle body is fixedly arranged in the U-shaped sheath, and the peripheral side surface of the lower heat nozzle body and the inner peripheral side surface of the U-shaped sheath are arranged at intervals; the U-shaped sheath is provided with at least two through holes which are arranged at intervals along the circumferential direction of the lower hot nozzle body and are transversely arranged, and each through hole is correspondingly communicated with one nozzle core in a sealing way. Compared with the prior art, the outside of chewing the body through heat down sets up U type sheath, has avoided the heat that the body was chewed to heat down to run off at the excessive speed, has guaranteed the temperature that the heat was chewed, improves the control by temperature change precision, and in addition, U type sheath can also completely cut off down the direct template contact with the outside of body is chewed to heat, avoids the heat to be siphoned away by the template, prevents that the template temperature from rising and influencing product appearance.

Description

Special fixed mode side cementing structure

Technical Field

The utility model relates to the technical field of hot nozzles, in particular to a special fixing mode side cementing structure.

Background

In the field of hot runner structures, in order to prevent molten plastic from solidifying in a hot nozzle, a heating device is arranged on the outer side of the hot nozzle or the outer side of a nozzle core, and the heating device is used for ensuring the temperature of the hot nozzle and avoiding the premature solidification of the molten plastic.

At present, most heating devices adopt a copper sleeve heating device, and a heating wire is wound on the outer side of a copper sleeve or is directly wound on the outer side of a heat nozzle, so that the heat nozzle is heated. However, since the hot nozzle is generally installed in the mold plate, the heat of the hot nozzle itself or the heat generated by the heating device is easily conducted to the mold, thereby causing low thermal efficiency, causing loss of heat due to inaccurate control of the temperature of the hot nozzle, and causing problems of low cooling rate, partial deformation of the product, and the like in the molding of the product after the temperature of the mold is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special fixing type side cementing structure capable of reducing heat loss aiming at the defects in the prior art.

The purpose of the utility model is realized by the following technical scheme: the application provides a special fixing mode side cementing structure which comprises a U-shaped sheath, an upper hot nozzle body and a lower hot nozzle body detachably connected with the upper hot nozzle body, wherein the lower hot nozzle body is fixedly arranged in the U-shaped sheath, and the peripheral side surface of the lower hot nozzle body and the inner peripheral side surface of the U-shaped sheath are arranged at intervals; a main runner is arranged in the upper heat nozzle body, at least two inclined runners which are respectively communicated with the main runner and are obliquely arranged downwards are arranged in the lower heat nozzle body, at least two mounting grooves which are distributed at intervals along the circumferential direction of the lower heat nozzle body are arranged at the bottom end of the lower heat nozzle body, transversely placed nozzle cores are fixedly mounted in each mounting groove, and the starting end of each nozzle core is correspondingly communicated with one inclined runner; the U-shaped sheath is provided with at least two through holes which are arranged at intervals along the circumferential direction of the lower hot nozzle body and are transversely arranged, and each through hole is correspondingly communicated with one nozzle core in a sealing way.

Wherein, still include spacer pin and cushion, the bottom surface of chewing the body down hot has seted up first spacing hole, and the spacing hole of second that aligns with first spacing hole is seted up to the interior bottom surface of U type sheath, and the cushion is placed and is chewed between the bottom surface of body and the interior bottom surface of U type sheath under hot, and the one end of spacer pin inserts in first spacing hole, and the other one end of spacer pin passes the cushion and inserts in the spacing hole of second.

Wherein, the outside cover of body is chewed to the heat of going up is equipped with the copper sheathing, and the copper sheathing is around being equipped with first heater strip, and the periphery side of body is chewed to the heat down is around being equipped with the second heater strip, and first heater strip and second heater strip are independent control each other.

Wherein, the top end face of the lower hot nozzle body is provided with a clamping hole, the bottom end of the upper hot nozzle body is in threaded connection with a sprue bush, and the bottom end of the sprue bush is inserted into the clamping hole.

The outer peripheral side of each chewing core is sleeved with a chewing core sleeve, and the peripheral side surface of each chewing core sleeve is connected with the corresponding mounting groove through a threaded structure.

Wherein, the end surface of each chewing core sleeve facing the U-shaped sheath is tightly attached to the inner side surface of the U-shaped sheath.

The utility model has the beneficial effects that: compared with the prior art, the side cementing structure adopting the special fixing mode has the advantages that the U-shaped sheath is arranged on the outer side of the lower heat nozzle body, so that the heat of the lower heat nozzle body is prevented from being lost too fast, the temperature of the heat nozzle is ensured, and the temperature control precision is improved; the position of the chewing core is fixed, and the chewing core is positioned before thermal expansion during heating, so that the concentricity of the chewing core and the glue inlet is better.

Drawings

The utility model is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the utility model, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a schematic structural view of a special fixing type side adhesive structure in this embodiment.

Fig. 2 is an enlarged view of a point a in fig. 1.

Reference numerals: the upper heat nozzle body 1, the main runner 11, the lower heat nozzle body 2, the inclined runner 3, the through hole 31, the nozzle core 4, the nozzle core sleeve 5, the copper sleeve 6, the first heating wire 61, the second heating wire 62, the cushion block 7, the limiting pin 8 and the sprue bush 9.

Detailed Description

The utility model is further described with reference to the following examples.

The utility model relates to a specific embodiment of a special fixing type side adhesive structure, which is shown in figures 1 to 2 and comprises a U-shaped sheath, an upper hot nozzle body 1 and a lower hot nozzle body 2 detachably connected with the upper hot nozzle body 1. In this embodiment, the joint hole has been seted up to the top face of body 2 is chewed to lower heat, and the bottom threaded connection who goes up body 1 is chewed to heat has runner cover 9, and the joint hole is inserted to the bottom of runner cover 9, and this kind of detachable connection structure can make things convenient for the dismouting of hot subassembly of chewing, and is more swift convenient when making maintenance and maintenance.

In this embodiment, the lower hot nozzle body 2 is fixedly installed in the U-shaped sheath, and the outer peripheral side surface of the lower hot nozzle body 2 is spaced from the inner peripheral side surface of the U-shaped sheath. Specifically, the side cementing structure still includes spacer pin 8 and cushion 7, and first spacing hole has been seted up to the bottom surface that body 2 was chewed to lower heat, and the spacing hole of second that aligns with first spacing hole is seted up to the interior bottom surface of U type sheath, and cushion 7 is placed between the bottom surface that body 2 was chewed to lower heat and the interior bottom surface of U type sheath, and during first spacing hole was inserted to the one end of spacer pin 8, spacer pin 8's other one end passed cushion 7 and inserted in the spacing hole of second. In practical application, can change the cushion 7 of different thickness according to the actual demand to the body 2's mounting height is chewed to the heat under the adjustment, and the subassembly is chewed to the heat that makes U type sheath be applicable to different specifications installs, and in addition, the body 2 periphery side is chewed to the heat down sets up with the interior peripheral side interval of U type sheath, can avoid U type sheath direct and lower heat to chew body 2 direct contact and take place heat transfer, has further avoided thermal scattering and disappearing, further improves the control by temperature change precision.

In this embodiment, it is equipped with sprue 11 in this embodiment to go up the heat and chew that this internal 1 is equipped with, and lower heat is chewed and is equipped with at least two oblique runners 3 that communicate respectively with sprue 11 and slant set up in 2, and lower heat is chewed the bottom of body 2 and is equipped with at least two mounting grooves of arranging along the circumference interval of body 2 is chewed to lower heat, and equal fixed mounting has the core 4 of chewing of horizontal placing in each mounting groove, and each top of chewing core 4 corresponds and an oblique runner 3 intercommunication. Similarly, the U-shaped sheath is provided with at least two through holes 31 which are arranged along the circumferential direction of the lower hot nozzle body 2 at intervals and are transversely arranged, and each through hole 31 is correspondingly communicated with one nozzle core 4 in a sealing way.

In order to prevent the problem of glue leakage between the chewing cores 4 and the U-shaped sheath, the peripheral side of each chewing core 4 is sleeved with 4 sleeves of the chewing core, the peripheral side surface of each sleeve of the chewing core 4 is connected with the corresponding mounting groove through a thread structure, and the end surface of each sleeve of the chewing core 4 facing the U-shaped sheath is tightly attached to the inner side surface of the U-shaped sheath.

In this embodiment, the outer side of the upper hot nozzle body 1 is sleeved with the copper sleeve 6, the copper sleeve 6 is wound with the first heating wire 61, the peripheral side surface of the lower hot nozzle body 2 is wound with the second heating wire 62, and the first heating wire 61 and the second heating wire 62 are controlled independently. The temperature of body 1 is chewed to last heat and the temperature of body 2 is chewed to lower heat respectively through setting up first heater strip 61 and second heater strip 62 and control, improves the control by temperature change precision, improves the suitability of product, satisfies the production demand of different products.

The special fixed mode side of this embodiment is glued and is constructed, compares with prior art, sets up U type sheath through the outside that body 2 was chewed to heat down, has avoided the heat of body 2 is chewed to heat down to run off at the excessive speed, has guaranteed the temperature that the heat was chewed, improves the control by temperature change precision, and in addition, U type sheath can also completely cut off down the direct template contact with the outside of body 2 is chewed to heat, avoids the heat to be siphoned away by the template, prevents that the template temperature from rising and influencing product appearance.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a special fixed mode side advances glued structure which characterized in that: the hot-water bottle comprises a U-shaped sheath, an upper hot-water nozzle body and a lower hot-water nozzle body detachably connected with the upper hot-water nozzle body, wherein the lower hot-water nozzle body is fixedly arranged in the U-shaped sheath, and the peripheral side surface of the lower hot-water nozzle body and the inner peripheral side surface of the U-shaped sheath are arranged at intervals;

a main flow channel is arranged in the upper heat nozzle body, at least two inclined flow channels which are respectively communicated with the main flow channel and are obliquely arranged downwards are arranged in the lower heat nozzle body, at least two mounting grooves which are distributed at intervals along the circumferential direction of the lower heat nozzle body are arranged at the bottom end of the lower heat nozzle body, nozzle cores which are transversely arranged are fixedly mounted in each mounting groove, and the starting end of each nozzle core is correspondingly communicated with one inclined flow channel;

the U-shaped sheath is provided with at least two through holes which are arranged at intervals along the circumferential direction of the lower hot nozzle body and are transversely arranged, and each through hole is correspondingly communicated with one nozzle core in a sealing way.

2. A special fastening side facing adhesive structure according to claim 1, wherein: still include spacer pin and cushion, the bottom surface of body is chewed to lower heat has seted up first spacing hole, the interior bottom surface of U type sheath seted up with the spacing hole of second that first spacing pore pair was aimed at, the cushion is placed down between the bottom surface of body and the interior bottom surface of U type sheath are chewed to heat, the one end of spacer pin is inserted in the first spacing hole, the other one end of spacer pin is passed the cushion inserts in the spacing hole of second.

3. A special fastening side facing adhesive structure according to claim 1, wherein: go up the outside cover that hot chews the body and be equipped with the copper sheathing, the copper sheathing is around being equipped with first heater strip, the periphery side that the body was chewed to lower heat is around being equipped with the second heater strip, first heater strip and second heater strip independent control each other.

4. A special fastening side facing adhesive structure according to claim 1, wherein: the top end face of the lower hot nozzle body is provided with a clamping hole, the bottom end of the upper hot nozzle body is in threaded connection with a sprue bush, and the bottom end of the sprue bush is inserted into the clamping hole.

5. A special fastening side facing adhesive structure according to claim 1, wherein: the outer peripheral side of each chewing core is sleeved with a chewing core sleeve, and the peripheral side surface of each chewing core sleeve is connected with the corresponding mounting groove through a threaded structure.

6. The special fastening side facing adhesive structure of claim 5, wherein: the end face of each chewing core sleeve facing the U-shaped sheath is tightly attached to the inner side face of the U-shaped sheath.