CN218477061U - Novel hot runner - Google Patents

Abstract

The utility model relates to the technical field of hot runners, in particular to a novel hot runner, which comprises an outer sleeve, an inner sleeve, a heating ring and a propulsion device, wherein the propulsion device comprises a motor, the output end of the motor is fixedly connected with a connecting rod, the periphery of the connecting rod is movably connected with an arc-shaped fixed block, the arc-shaped fixed block is fixedly connected with the motor, the arc-shaped fixed block is fixedly connected with the outer sleeve, the connecting rod is movably connected with the outer sleeve and the inner sleeve, and the tail end of the connecting rod is fixedly provided with a first gear; the utility model discloses a heating collar can make the plastics in the endotheca runner be in the molten state all the time, through advancing device, can promote the plastics of molten state in the endotheca runner downwards with higher speed, and can effectually prevent the jam of the inside raw materials of injection molding machine, improves next product quality.

Description

Novel hot runner

Technical Field

The utility model relates to a hot runner technical field specifically is a novel hot runner.

Background

The hot runner ensures that the plastic of the runner and the sprue keeps a molten state by a heating method, and because the heating rod and the heating ring are arranged near or in the center of the runner, the whole runner from the nozzle outlet of the injection molding machine to the sprue is in a high-temperature state, so that the plastic in the runner keeps molten, the runner does not need to be opened to take out the condensate after the machine is stopped, and the runner only needs to be heated to the required temperature when the machine is restarted.

The hot runner system for the injection mold has the advantages that the raw material loss caused by a single heating mode of a traditional internal heating nozzle or an external heating nozzle is reduced by the annular heating main nozzle through an internal and external uniform heating mode, frequent sampling of the temperature of each point of the annular heating main nozzle and the shunting plate by the mold temperature monitoring device is realized through the CPLD main control circuit board, the output power of a heating coil and an electric heater is controlled to realize high-precision control of the temperature, the temperature difference of each point of the shunting plate is further controlled within an allowable range, the heat insulation performance of the annular heating main nozzle is optimized, and the yield of equipment is improved;

although the hot runner reduces the raw material loss caused by the single heating mode of the traditional internal heating nozzle or the traditional external heating nozzle through the mode of uniformly heating the inside and the outside, the hot runner is similar to the common hot runner, the runner does not need to be opened after the machine is stopped to take out the solidified materials, if the operation is improper after the machine is started, the raw materials in the injection molding machine can be blocked, and the quality of products made by melting some solidified materials again can not be ensured. In view of this, we propose a new hot runner.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiency, the utility model provides a novel hot runner.

The technical scheme of the utility model is that:

a novel hot runner comprises an outer sleeve, an inner sleeve and a heating ring, wherein the outer sleeve is fixedly connected to the outer side of the inner sleeve, the heating ring is arranged between the outer sleeve and the inner sleeve, and the heating ring is fixedly connected with the inner sleeve; still including locating the inside advancing device of endotheca, advancing device includes the motor, the output fixedly connected with connecting rod of motor, the peripheral swing joint of connecting rod has the arc fixed block, arc fixed block and motor fixed connection.

Preferably, the arc-shaped fixing block is fixedly connected with the outer sleeve, the motor is arranged on the outer side of the outer sleeve, and the connecting rod penetrates through the outer sleeve and the inner sleeve.

Preferably, the connecting rods are movably connected with the outer sleeve and the inner sleeve, and the tail ends of the connecting rods are fixedly provided with the first gears.

Preferably, a second gear is vertically meshed and connected below the first gear, a rotating shaft is fixedly installed in the second gear, and an upper pushing propeller is fixedly installed on the periphery of the upper end of the rotating shaft.

Preferably, a lower pushing propeller is fixedly mounted on the periphery of the lower end of the rotating shaft.

Preferably, a protective box is arranged on the periphery of the first gear and the second gear.

Preferably, the protective box is movably connected with the rotating shaft.

Preferably, a fixing rod is fixedly installed at one side of the protection box.

Preferably, the fixing rod is fixedly connected with the inner sleeve.

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

the utility model discloses a heating coil can make the plastics in the endotheca runner be in the molten state all the time.

The utility model discloses a advancing device can promote the plastics of endotheca runner internal melting state downwards with higher speed to when the injection molding machine was shut down, heating collar and motor still were in the starting condition, and the plastics of molten state all flowed out in the endotheca runner, reclosing heating collar and motor can effectually prevent the jam of the inside raw materials of injection molding machine, improve next product quality.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cut-away view of the present invention;

FIG. 3 is a schematic view of the propulsion device of the present invention;

fig. 4 is the structure diagram of the propulsion device of the utility model in the state of cutting the protection box.

In the figure:

1. a jacket;

2. an inner sleeve;

3. heating a ring;

4. a propulsion device; 41. a motor; 42. a connecting rod; 43. an arc-shaped fixed block; 44. a rotating shaft; 45. the propeller is pushed upwards; 46. a protective case; 47. fixing the rod; 48. pushing down the propeller; 49. a first gear; 50. a second gear.

Detailed Description

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.

In the description of the present invention, 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 indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a novel hot runner, includes overcoat 1, and the inboard fixedly connected with endotheca 2 of overcoat 1, fixed mounting has heating collar 3 between overcoat 1 and the endotheca 2, is equipped with advancing device 4 in the endotheca 2, and the inboard of endotheca 2 is in the runner of molten state plastics, and inside endotheca 2 and the heating collar 3 of protection that overcoat 1 can be fine, and advancing device 4 can promote the plastics of molten state downwards in the 2 runners of endotheca with higher speed.

It is necessary to supplement that the outer sleeve 1 is made of heat insulating material, which can reduce the temperature from radiating to the outside of the injection molding machine, the heat generated by the heating ring 3 is concentrated on the inner side of the outer sleeve 1, and the inner sleeve 2 is made of material with excellent heat conductivity, so that the plastic in the flow channel of the inner sleeve 2 is always in a molten state.

In this embodiment, the propelling device 4 includes a motor 41, an output end of the motor 41 is fixedly connected with a connecting rod 42, a periphery of the connecting rod 42 is movably connected with an arc-shaped fixing block 43, the arc-shaped fixing block 43 is fixedly connected with the motor 41, the arc-shaped fixing block 43 is fixedly connected with the outer sleeve 1, the motor 41 is arranged outside the outer sleeve 1, the connecting rod 42 passes through the outer sleeve 1 and the inner sleeve 2, the connecting rod 42 is movably connected with the outer sleeve 1 and the inner sleeve 2, a first gear 49 is fixedly installed at a tail end of the connecting rod 42, the output end of the motor 41 can drive the connecting rod 42 to rotate, the first gear 49 rotates along with the connecting rod 42 and also drives a second gear 50 to rotate, the second gear 50 can drive a rotating shaft 44, an upper pushing propeller 45 and a lower pushing propeller 48 to synchronously rotate, and the upper pushing propeller 45 and the lower pushing propeller 48 can accelerate the plastic in a molten state in a flow channel of the inner sleeve 2 to be pushed downwards.

In this embodiment, a second gear 50 is vertically engaged and connected below the first gear 49, a rotating shaft 44 is fixedly installed in the second gear 50, an upper pushing propeller 45 is fixedly installed on the periphery of the upper end of the rotating shaft 44, a lower pushing propeller 48 is fixedly installed on the periphery of the lower end of the rotating shaft 44, a protective box 46 is arranged on the periphery of the first gear 49 and the second gear 50, the protective box 46 is movably connected with the rotating shaft 44, a fixing rod 47 is fixedly installed on one side of the protective box 46, the fixing rod 47 is fixedly connected with the inner sleeve 2, the protective box 46 prevents molten plastic from falling on the first gear 49 and the second gear 50, the solidified plastic can affect the rotation between the first gear 49 and the second gear 50, the arc-shaped fixing block 43 is used for connecting the motor 41 and the outer sleeve 1, and the fixing rod 47 is used for ensuring the stability of the protective box 46 in the inner sleeve 2.

It should be noted that the joints between the connecting rod 42 and the outer sleeve 1 and the inner sleeve 2 are specially treated so that no molten plastic passes through the joints, and the joints between the protective case 46 and the rotating shaft 44 are also specially treated so that no molten plastic passes through the joints.

It should be noted that, the heating ring 3 and the motor 41 are connected to each other through a power cord and an external power source, so that the heating ring 3 and the motor 41 can work normally.

In this embodiment, when the injection molding machine is in operation, the heating ring 3 and the motor 41 are also in a starting state, the inner sleeve 2 is made of a material with excellent thermal conductivity, the heat generated by the heating ring 3 can keep the plastic in the flow channel of the inner sleeve 2 in a molten state, the output end of the motor 41 can drive the connecting rod 42 to rotate, the first gear 49 can drive the second gear 50 to rotate along with the rotation of the connecting rod 42, the second gear 50 can drive the rotating shaft 44, the upper pushing propeller 45 and the lower pushing propeller 48 to synchronously rotate, the rotating upper pushing propeller 45 and the rotating lower pushing propeller 48 can accelerate the plastic in the molten state in the flow channel of the inner sleeve 2 to be pushed downwards, when the injection molding machine is stopped, the heating ring 3 and the motor 41 are still in the starting state until the plastic in the molten state in the flow channel of the inner sleeve 2 completely flows out, and then the heating ring 3 and the motor 41 are turned off, so that the blocking of the raw materials in the injection molding machine can be effectively prevented, and the product quality of the next injection molding machine can be improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. The utility model provides a novel hot runner, includes overcoat (1), endotheca (2) and heating collar (3), overcoat (1) fixed connection is in the outside of endotheca (2), heating collar (3) are located between overcoat (1) and endotheca (2), heating collar (3) and endotheca (2) fixed connection, its characterized in that: still including locating interior advancing device (4) of endotheca (2), advancing device (4) include motor (41), the output fixedly connected with connecting rod (42) of motor (41), the peripheral swing joint of connecting rod (42) has arc fixed block (43), arc fixed block (43) and motor (41) fixed connection.

2. The new hot runner of claim 1, wherein: arc fixed block (43) and overcoat (1) fixed connection, the outside of overcoat (1) is located in motor (41), connecting rod (42) pass overcoat (1) and endotheca (2).

3. The new hot runner of claim 1, wherein: the connecting rod (42) is movably connected with the outer sleeve (1) and the inner sleeve (2), and a first gear (49) is fixedly mounted at the tail end of the connecting rod (42).

4. The new hot runner of claim 3, wherein: the lower part of the first gear (49) is vertically meshed with a second gear (50), a rotating shaft (44) is fixedly mounted in the second gear (50), and an upper pushing propeller (45) is fixedly mounted on the periphery of the upper end of the rotating shaft (44).

5. The new hot runner of claim 4, wherein: and a lower pushing propeller (48) is fixedly arranged on the periphery of the lower end of the rotating shaft (44).

6. The new hot runner of claim 4, wherein: and protective boxes (46) are arranged on the peripheries of the first gear (49) and the second gear (50).

7. The new hot runner of claim 6, wherein: the protective box (46) is movably connected with the rotating shaft (44).

8. The new hot runner of claim 6, wherein: and a fixing rod (47) is fixedly arranged on one side of the protection box (46).

9. The new hot runner of claim 8, wherein: the fixing rod (47) is fixedly connected with the inner sleeve (2).

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