CN214491441U

CN214491441U - Hot runner heating structure for plastic mold

Info

Publication number: CN214491441U
Application number: CN202120011687.4U
Authority: CN
Inventors: 胡志慧
Original assignee: Dongguan Hanmao Molding Technology Co ltd
Current assignee: Dongguan Hanmao Molding Technology Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-10-26
Anticipated expiration: 2031-01-05

Abstract

The utility model discloses a hot runner heating structure for plastic mold, including main part, runner, hot nozzle and bleeder vent, the top cap is installed to the top of main part, and installs the gate mouth on the top cap to the runner has been seted up on the gate mouth, the locating hole has been seted up to the bottom at gate mouth, the inner chamber has been seted up to the main part is inside, and is provided with the locating piece in the inner chamber to hexagonal screw thread has been seted up on the locating piece, the below of locating piece is provided with the cartridge heater, and installs hot runner pipe in the cartridge heater, the below of cartridge heater is connected with hot nozzle, and the inside heating coil that is provided with of hot nozzle, set up threaded hole on the top cap, and install fastening bolt in the screw hole, the bleeder vent has been seted up on the lateral wall of main part. The utility model discloses the runner outside that the gate opening was seted up is provided with the heating ring, preheats the device, causes heat loss when preventing to mould plastics liquid and get into to reduce liquid viscosity, lead to the in-process of moulding plastics to take place to solidify, influence production.

Description

Hot runner heating structure for plastic mold

Technical Field

The utility model relates to a hot runner mold technical field specifically is a hot runner heating structure for plastic mold.

Background

A hot runner gating system may be understood as an extension of an injection molding machine. The function of the hot runner system is to adiabatically feed the thermoplastic melt to the vicinity of the forming mold or directly to the mold. The hot runners can be heated independently and thermally insulated in the injection mold, which can separately compensate for heat loss due to contact with the "cold" mold. The hot runner mold is a mold which makes the melt in the runner not solidified all the time by using a heating device, and has shorter forming period and more saved raw materials compared with the traditional mold, so the hot runner mold is widely applied to developed countries and regions of various industries in the world at present, is mainly used for the field of manufacturing plastic and metal parts, improves the product quality and brings great convenience to people.

In the existing hot runner heating structure, the structure is complex, the operation is troublesome, the temperature control precision is not high, the product production quality is easily reduced after long-time use, the hot runner heating structure can not be fully utilized, and the normal work of the hot runner heating structure is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hot runner heating structure for plastic mold to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hot runner heating structure for plastic mold, includes main part, runner, hot nozzle and bleeder vent, the top cap is installed to the top of main part, and installs on the top cap and water the road junction to having seted up the runner on watering the road junction, and the outside of runner is provided with the heating ring, the locating hole has been seted up to the bottom of watering the road junction, the inside inner chamber of having seted up of main part, and be provided with the locating piece in the inner chamber to set up interior hexagonal screw thread on the locating piece, the below of locating piece is provided with the cartridge heater, and installs hot runner pipe in the cartridge heater, the below of cartridge heater is connected with hot nozzle, and the inside heating coil that is provided with of hot nozzle, set up threaded hole on the top cap, and install fastening bolt in the screw hole, the bleeder vent has been seted up on the lateral wall of main part.

Preferably, the main body and the top cover are connected through installing fastening bolts in threaded holes to form a fixing structure, and the pouring gate opening and the top cover form a fixing structure through installing screws in positioning holes.

Preferably, the runner is of a continuous T-shaped structure, and the heating ring, the heating cylinder and the heating ring are connected with a temperature control system.

Preferably, the positioning block is connected with the heating cylinder through a mounting screw in the inner hexagonal thread to form a fixing structure, and the outer surface of the heating cylinder is provided with air holes communicated with the hot runner pipe.

Preferably, the heating cylinder is internally provided with flow channels, the flow channels penetrate through the heating cylinder and are connected with the hot nozzle through the hot runner pipe, and four hot nozzles are symmetrically arranged.

Preferably, the heating ring is arranged outside the flow channel in a spiral structure, and the hot nozzle is provided with a pressurizing valve.

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

1. the utility model discloses the runner outside that the gate opening was seted up is provided with the heating ring, preheats the device, causes heat loss when preventing to mould plastics liquid and get into to reduce liquid viscosity, lead to the in-process of moulding plastics to take place to solidify, influence production.

2. The utility model discloses the runner is T type structure and passes the cartridge heater in proper order, keeps the constancy of temperature through temperature control system, has seted up the bleeder vent on the main part lateral wall and has prevented that air in the inner chamber from receiving thermal energy pressure to rise, is provided with pressure valve on the hot nozzle simultaneously and guarantees to mould plastics stably.

Drawings

Fig. 1 is the main schematic diagram of the structure of the utility model.

Fig. 2 is a schematic view of the top view structure of the present invention.

Fig. 3 is a left side view structure diagram of the present invention.

In the figure: 1. a main body; 2. a top cover; 3. a gate opening; 4. a flow channel; 5. a heating ring; 6. positioning holes; 7. positioning blocks; 8. inner hexagonal threads; 9. an inner cavity; 10. a heating cylinder; 11. a hot runner pipe; 12. a hot nozzle; 13. heating a ring; 14. a threaded hole; 15. fastening a bolt; 16. and (4) air holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: a hot runner heating structure for a plastic mold comprises a main body 1, a top cover 2, a pouring channel opening 3, a flow channel 4, a heating ring 5, a positioning hole 6, a positioning block 7, inner hexagonal threads 8, an inner cavity 9, a heating cylinder 10, a hot flow channel pipe 11, a hot nozzle 12, a heating ring 13, a threaded hole 14, a fastening bolt 15 and an air vent 16, wherein the top cover 2 is installed above the main body 1, the pouring channel opening 3 is installed on the top cover 2, the flow channel 4 is arranged on the pouring channel opening 3, the heating ring 5 is arranged outside the flow channel 4, the positioning hole 6 is arranged at the bottom of the flow channel 3, the inner cavity 9 is arranged inside the main body 1, the positioning block 7 is arranged in the inner cavity 9, the inner hexagonal threads 8 are arranged on the positioning block 7, the heating cylinder 10 is arranged below the positioning block 7, the hot flow channel pipe 11 is installed in the heating cylinder 10, the hot nozzle 12 is connected below the heating cylinder 10, and the heating ring 13 is arranged inside the hot nozzle 12, the top cover 2 is provided with a threaded hole 14, a fastening bolt 15 is installed in the threaded hole 14, the side wall of the main body 1 is provided with an air vent 16, the main body 1 and the top cover 2 are connected through the installation of the fastening bolt 15 in the threaded hole 14 to form a fixed structure, the pouring gate 3 and the top cover 2 form a fixed structure through an installation screw of a positioning hole 6, the flow channel 4 is of a continuous T-shaped structure, the heating ring 5, the heating cylinder 10 and the heating ring 13 are connected with a temperature control system to prevent heat loss caused by injection molding liquid entering, so as to reduce liquid viscosity and cause solidification in the injection molding process, the positioning block 7 is connected with the heating cylinder 10 through the installation screw in the inner hexagonal thread 8 to form a fixed structure, the outer surface of the heating cylinder 10 is provided with the air vent 16 communicated with the hot runner pipe 11, the flow channel 4 is arranged inside the heating cylinder 10, and the flow channel 4 passes through the heating cylinder 10 to be connected with the hot nozzle 12, and four hot nozzles 12 are symmetrically arranged, the heating ring 13 is arranged at the outer side of the flow passage 4 in a spiral structure, and a pressurizing valve is arranged on the hot nozzles 12 to ensure pressure balance and stabilize injection molding.

The working principle is as follows: the utility model discloses when using, it is right to need the utility model discloses carry out simple structure understanding, the liquid of moulding plastics is by watering mouthful 3 gatherer, it has seted up runner 4 on mouthful 3 to water, runner 4's the outside is provided with heating ring 5, preheat the device, cause heat loss when preventing the liquid of moulding plastics to get into, thereby reduce liquid viscosity, lead to moulding plastics the in-process and take place to solidify, runner 4 is continuous T style of calligraphy structure, heating ring 5, heating cylinder 10 and heating ring 13 are connected with temperature control system, keep the constancy of temperature, 16 and 11 intercommunications of hot runner pipe of bleeder vent and 16 have been seted up to heating cylinder 10 surface, bleeder vent 16 has been seted up on the lateral wall of main part 1, prevent that air in the inner chamber from receiving the hot expansion pressure rising, be provided with the pressurization valve on the hot nozzle 12, guarantee pressure balance makes and mould plastics stably.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hot runner heating structure for plastic mold, includes main part (1), runner (4), hot nozzle (12) and bleeder vent (16), its characterized in that: the hot runner type water heater is characterized in that a top cover (2) is installed above the main body (1), a runner opening (3) is installed on the top cover (2), a runner (4) is arranged on the runner opening (3), a heating ring (5) is arranged on the outer side of the runner (4), a positioning hole (6) is formed in the bottom of the runner opening (3), an inner cavity (9) is formed in the main body (1), a positioning block (7) is arranged in the inner cavity (9), an inner hexagonal thread (8) is formed in the positioning block (7), a heating cylinder (10) is arranged below the positioning block (7), a hot runner pipe (11) is installed in the heating cylinder (10), a hot nozzle (12) is connected below the heating cylinder (10), a heating ring (13) is arranged inside the hot nozzle (12), a threaded hole (14) is formed in the top cover (2), and a fastening bolt (15) is installed in the threaded hole (14), the side wall of the main body (1) is provided with air holes (16).

2. The hot runner heating structure for a plastic mold as claimed in claim 1, wherein: the main body (1) and the top cover (2) are connected through installing fastening bolts (15) in threaded holes (14) to form a fixing structure, and the pouring gate opening (3) and the top cover (2) form a fixing structure through installing screws in positioning holes (6).

3. The hot runner heating structure for a plastic mold as claimed in claim 1, wherein: the runner (4) is of a continuous T-shaped structure, and the heating ring (5), the heating cylinder (10) and the heating ring (13) are connected with a temperature control system.

4. The hot runner heating structure for a plastic mold as claimed in claim 1, wherein: the positioning block (7) is connected with the heating cylinder (10) through a mounting screw in the inner hexagonal thread (8) to form a fixing structure, and the outer surface of the heating cylinder (10) is provided with an air hole (16) communicated with the hot runner pipe (11).

5. The hot runner heating structure for a plastic mold as claimed in claim 1, wherein: the heating cylinder (10) is internally provided with runners (4), the runners (4) penetrate through the heating cylinder (10) and are connected with hot nozzles (12) through hot runner pipes (11), and four hot nozzles (12) are symmetrically arranged.

6. The hot runner heating structure for a plastic mold as claimed in claim 1, wherein: the heating ring (13) is arranged on the outer side of the flow channel (4) in a spiral structure, and the hot nozzle (12) is provided with a pressurizing valve.