CN221834880U - Abnormal shape hot runner mould with heat preservation function - Google Patents

Abstract

The utility model relates to the technical field of hot runner molds, and discloses a special-shaped hot runner mold with a heat preservation function, including a mold base, wherein four accommodating cavities are provided inside the mold base, and a hot runner forming mold is interspersed inside the accommodating cavity, and a heating ring is provided inside the accommodating cavity and outside the hot runner forming mold. The special-shaped hot runner mold with a heat preservation function can install the hot runner forming mold and the heating ring through the arrangement of the mold base and the accommodating cavity, and can perform injection molding of the workpiece through the arrangement of the hot runner forming mold. The hot runner forming mold can be heated through the arrangement of the heating ring to prevent the plastic particle solution from solidifying when cold, resulting in clogging of the connector and affecting subsequent injection molding. The hot runner forming mold can be limited through the arrangement of the fixing device, and the hot runner forming mold can be disassembled and replaced conveniently, so as to facilitate the production of different workpieces.

Description

A special-shaped hot runner mold with heat preservation function

Technical Field

The utility model relates to the technical field of hot runner moulds, in particular to a special-shaped hot runner mould with a heat preservation function.

Background Art

A hot runner mold refers to a mold that uses a heating device to prevent the melt in the runner from solidifying. Because it has a shorter molding cycle than traditional molds and saves more raw materials, hot runner molds are widely used in industrially developed countries and regions in the world today.

When a hot runner mold is producing and processing a workpiece, it often melts the external plastic particles and sends them to the inside of the molding mold. During the process of discharging after injection molding, the mold is opened, causing cold air from the outside to enter the inside of the mold, thereby cooling the hot runner mold and causing the internal plastic particle solution to solidify when it is cold, thereby blocking the delivery pipeline and affecting subsequent injection molding. This cannot meet the needs of use. Therefore, those skilled in the art provide a special-shaped hot runner mold with a heat preservation function to solve the problems raised in the above background technology.

Utility Model Content

The utility model aims to provide a special-shaped hot runner mold with a heat preservation function to solve the problems raised in the above background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A special-shaped hot runner mold with a heat preservation function, comprising a mold base, wherein four accommodating cavities are provided inside the mold base, a hot runner forming mold is inserted inside the accommodating cavity, a heating ring is provided inside the accommodating cavity and outside the hot runner forming mold, and a fixing device is provided at the bottom of the mold base;

The fixing device comprises two threaded barrels fixedly mounted on the bottom of the hot runner forming mold and a first long bolt inserted into the threaded barrel. A mounting plate is arranged outside the first long bolt and at the bottom of the mold seat.

As a further solution of the utility model: a spring is sleeved on the bottom of the mounting plate and located on the outside of the first long bolt, and second bolts are inserted on both sides of the mounting plate. The second bolts penetrate into the interior of the mold base and are rotatably connected to the mold base through threads.

As a further solution of the utility model: a mounting frame is fixedly installed on the bottom of the mold base, and two first bolts are inserted through the bottom of the mounting frame.

As a further solution of the utility model: a blocking ring is embedded in the interior of the accommodating cavity, and the top of the blocking ring contacts the outer edge of the top of the hot runner molding mold.

As a further solution of the utility model: limiting grooves are provided inside the mold base and on both sides of the accommodating cavity, the limiting grooves are internally slidably connected to limiting blocks, and one side of the limiting block is fixedly connected to the heating ring.

As a further solution of the utility model: an installation groove is opened inside the mold base and on one side of the accommodating cavity, a connecting block is arranged inside the installation groove, one side of the connecting block is fixedly connected to the heating ring, the internal thread of the connecting block is connected to a second long bolt, the top of the second long bolt passes through the interior of the mold base and is rotatably connected to the mold base through a thread.

As a further solution of the utility model: the bottom of the hot runner forming mold is connected to a connector, the internal thread of the connector is connected to a feed pipe, and the bottom of the feed pipe passes through the mounting plate and extends to the bottom of the mounting plate.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model realizes installation of the hot runner forming mold and the heating ring through the arrangement of the mold seat and the accommodating cavity, realizes injection molding of the workpiece through the arrangement of the hot runner forming mold, and realizes heating of the hot runner forming mold through the arrangement of the heating ring, so as to avoid solidification of the plastic particle solution when it is cold, resulting in blockage of the connecting head and affecting subsequent injection molding, and the hot runner forming mold is limited through the arrangement of the fixing device, and the hot runner forming mold is convenient to disassemble and replace, so as to facilitate the production of different workpieces.

2. The utility model realizes pulling the hot runner forming mold by reverse extrusion of the first long bolt through the spring, thereby fixing the hot runner forming mold and increasing the stability of the hot runner forming mold. The heating ring is limited by the cooperation between the limit groove and the limit block to avoid the edge of the heating ring contacting the inner wall of the hot runner forming mold, which causes uneven heating of the hot runner forming mold.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of a special-shaped hot runner mold with a heat preservation function;

FIG2 is a schematic diagram of a bottom-up structure of a special-shaped hot runner mold with a heat preservation function;

FIG3 is a schematic diagram of the structure of a mold base in a special-shaped hot runner mold with a heat preservation function when viewed from above;

FIG4 is a schematic diagram of the structure of a hot runner forming mold in a special-shaped hot runner mold with a heat preservation function;

FIG5 is a schematic diagram of the structure of a heating ring in a special-shaped hot runner mold with a heat preservation function;

FIG. 6 is a schematic diagram of the structure of a fixing device in a special-shaped hot runner mold with a heat preservation function.

In the figure: 1. mold base; 2. hot runner molding mold; 3. heating coil; 4. mounting frame; 5. first bolt; 6. accommodating chamber; 7. fixing device; 701. threaded cylinder; 702. mounting plate; 703. spring; 704. first long bolt; 705. second bolt; 8. blocking ring; 9. mounting groove; 10. limiting groove; 11. feeding pipe; 12. connecting head; 13. limiting block; 14. connecting block; 15. second long bolt.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1, 2, 3, 4, 5 and 6, a special-shaped hot runner mold with a heat preservation function, including a mold base 1, the mold base 1 has four accommodating cavities 6 formed inside, a hot runner forming mold 2 is inserted into the accommodating cavities 6, a heating ring 3 is sleeved inside the accommodating cavities 6 and outside the hot runner forming mold 2, and a fixing device 7 is provided at the bottom of the mold base 1;

The fixing device 7 includes two threaded barrels 701 fixedly mounted on the bottom of the hot runner forming mold 2 and a first long bolt 704 inserted inside the threaded barrel 701, a mounting plate 702 is arranged on the outside of the first long bolt 704 and located at the bottom of the mold base 1, a spring 703 is sleeved on the bottom of the mounting plate 702 and located on the outside of the first long bolt 704, and second bolts 705 are inserted on both sides of the mounting plate 702, the second bolts 705 penetrate into the interior of the mold base 1 and are rotatably connected to the mold base 1 by threads, and the first long bolt 704 is reversely squeezed by the spring 703, thereby pulling the hot runner forming mold 2, fixing the hot runner forming mold 2, and increasing the stability of the hot runner forming mold 2.

A mounting frame 4 is fixedly installed at the bottom of the mold base 1, and two first bolts 5 are inserted through the bottom of the mounting frame 4. The mold base 1 is fixedly installed through the cooperation between the mounting frame 4 and the first bolts 5. A blocking ring 8 is embedded in the accommodating cavity 6, and the top of the blocking ring 8 contacts the outer edge of the top of the hot runner forming mold 2. The hot runner forming mold 2 is blocked and limited by the setting of the blocking ring 8, and the hot runner forming mold 2 is fixed by cooperating with the fixing device 7.

Limiting grooves 10 are provided inside the mold base 1 and on both sides of the accommodating cavity 6. The limiting grooves 10 are internally slidably connected to limiting blocks 13. One side of the limiting block 13 is fixedly connected to the heating coil 3. The limiting grooves 10 and the limiting blocks 13 cooperate with each other to limit the heating coil 3, thereby preventing the edge of the heating coil 3 from contacting the inner wall of the hot runner forming mold 2, which would cause uneven heating of the hot runner forming mold 2.

Please refer to Figures 1, 2, 3, 4 and 5, a special-shaped hot runner mold with a heat preservation function, an installation groove 9 is opened inside the mold base 1 and on one side of the accommodating cavity 6, a connecting block 14 is arranged inside the installation groove 9, one side of the connecting block 14 is fixedly connected to the heating coil 3, the internal thread of the connecting block 14 is connected to the second long bolt 15, the top of the second long bolt 15 passes through the inside of the mold base 1 and is rotatably connected to the mold base 1 by a thread, the cooperation between the connecting block 14 and the second long bolt 15 is used to limit the heating coil 3, and the stability of the heating coil 3 is increased.

The bottom of the hot runner molding mold 2 is connected to a connector 12, and the internal thread of the connector 12 is connected to a feed pipe 11. The bottom of the feed pipe 11 passes through the mounting plate 702 and extends to the bottom of the mounting plate 702. The melted plastic solution is delivered to the internal molding of the hot runner molding mold 2 through the cooperation between the feed pipe 11 and the connector 12.

The working principle of the utility model is as follows: first, the required hot runner molding mold 2 is selected according to the plastic workpiece to be produced, and the hot runner molding mold 2 is penetrated into the interior of the accommodating cavity 6, and then the heating coil 3 is penetrated into the interior of the accommodating cavity 6, and at the same time, the limiting blocks 13 on both sides of the heating coil 3 are inserted into the interior of the limiting groove 10. After the placement is completed, the second long bolt 15 is rotated inside the connecting block 14 and extends to the top of the installation groove 9 and finally penetrates into the interior of the mold seat 1 to fix the heating coil 3. After the fixing is completed, the spring 703 is sleeved on the first long bolt 7 04, insert the first long bolt 704 into the inside of the mounting plate 702, pick up the mounting plate 702, the spring 703 and the first long bolt 704 and place them at the bottom of the mold base 1, penetrate the first long bolt 704 into the inside of the accommodating cavity 6 and threadedly connect it with the threaded barrel 701 at the bottom of the hot runner forming mold 2, and after the connection is completed, fix the hot runner forming mold 2, pass the feed pipe 11 through the mounting plate 702 and connect it to the connector 12, and after the connection is completed, pick up the whole thing and fix it to the inside of the equipment through the mounting frame 4 and the first bolt 5.

What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims (7)

1. The utility model provides a heterotypic hot runner mold with heat preservation function, includes mould seat (1), its characterized in that: four accommodating cavities (6) are formed in the die seat (1), hot runner forming dies (2) are inserted in the accommodating cavities (6), heating rings (3) are sleeved on the inner parts of the accommodating cavities (6) and located on the outer sides of the hot runner forming dies (2), and fixing devices (7) are arranged at the bottoms of the die seat (1);

The fixing device (7) comprises two threaded cylinders (701) fixedly installed at the bottom of the hot runner forming die (2) and a first long bolt (704) which is arranged inside the threaded cylinders (701) in an inserted mode, and a mounting plate (702) is arranged on the outer side of the first long bolt (704) and located at the bottom of the die seat (1).

2. The special-shaped hot runner mold with heat preservation function according to claim 1, wherein: the bottom of mounting panel (702) and the outside cover that is located first stock bolt (704) are equipped with spring (703), the both sides of mounting panel (702) are all interlude and are provided with second bolt (705), second bolt (705) run through to inside of mould seat (1) and with be connected through the screw thread rotation between mould seat (1).

3. The special-shaped hot runner mold with heat preservation function according to claim 1, wherein: the bottom of mould seat (1) fixed mounting has mounting bracket (4), the bottom of mounting bracket (4) is provided with two first bolts (5) in the interlude.

4. The special-shaped hot runner mold with heat preservation function according to claim 1, wherein: the inner part of the accommodating cavity (6) is embedded with a blocking ring (8), and the top of the blocking ring (8) is contacted with the outer edge of the top of the hot runner molding die (2).

5. The special-shaped hot runner mold with heat preservation function according to claim 1, wherein: limiting grooves (10) are formed in the die seat (1) and located on two sides of the accommodating cavity (6), limiting blocks (13) are connected to the limiting grooves (10) in a sliding mode, and one side of each limiting block (13) is fixedly connected with the heating ring (3).

6. The special-shaped hot runner mold with heat preservation function according to claim 1, wherein: the inside of mould seat (1) and be located one side of holding chamber (6) and seted up mounting groove (9), the inside of mounting groove (9) is provided with connecting block (14), one side and heating collar (3) fixed connection of connecting block (14), the inside threaded connection of connecting block (14) has second stock bolt (15), the top of second stock bolt (15) runs through to the inside of mould seat (1) and with mould seat (1) between through screw thread rotation connection.

7. The special-shaped hot runner mold with heat preservation function according to claim 1, wherein: the bottom of hot runner forming die (2) communicates there is connector (12), the inside threaded connection of connector (12) has feed pipe (11), the bottom of feed pipe (11) runs through mounting panel (702) and extends to the bottom of mounting panel (702).