Safe injection molding heating device capable of preventing heating pipe from being broken

Abstract

The utility model discloses a safe injection molding heating device capable of preventing a heating pipe from being broken, which comprises two semi-ring bodies which are connected with each other through a hinge, and the two semi-ring bodies are opened or locked by virtue of a hasp zipper and then enclose to form an accommodating cavity; a heating tube is arranged on the inner wall of the semi-ring body and comprises a light-transmitting tube and a light-emitting core arranged in the light-transmitting tube; each light-transmitting tube is sleeved with a protective sleeve, and an opening is formed in the side, facing the containing cavity, of each protective sleeve. When the two semi-ring bodies are locked on the feeding pipe, the light-transmitting pipe does not directly make contact with the feeding pipe to generate extrusion, the situation that the normal work of the heating pipe is affected due to cracks and fractures of the light-transmitting pipe is avoided, and normal operation of the heating device is guaranteed; even if the light-transmitting tube is broken under the action of extrusion of external force, fragments generated by the light-transmitting tube can be wrapped in the protective sleeve, so that the light-emitting core is prevented from being exposed, and potential safety hazards caused by exposure of the light-emitting core are reduced.

Description

Technical Field

[0001] The present application relates to the technical field of technologies for heating or cooling materials to be extruded or the liquid flow of extruded materials, and particularly relates to a safe injection molding heating device for preventing a heating tube from bursting. Background Art

[0002] In the prior art, in order to prevent the problem that the molten plastic cools when being transported to an injection molding machine, resulting in hardening of the material and affecting the injection molding effect, a heating device is usually provided on the feed pipe of the injection molding machine.

[0003] In order to improve the heating efficiency of the feed heating device of the injection molding machine for the feed pipe, an injection molding machine feed heating device is designed, which includes a left heating semi-ring body and a right heating semi-ring body. They are connected by means of a hinge and the left heating semi-ring body and the right heating semi-ring body are switched between an open state and a locked state by means of a buckle zipper; a multi-stack heat exchanger is built in the left heating semi-ring body and the right heating semi-ring body. The multi-stack heat exchanger includes a light-transmitting tube, a light-emitting core arranged in the inner cavity of the light-transmitting tube, ceramic wire seats arranged at both ends of the light-transmitting tube, and a photo-thermal reflection sheet located on one side of the light-transmitting tube.

[0004] However, when the above-mentioned injection molding machine feed heating device locks the left heating semi-ring body and the right heating semi-ring body on the feed pipe by means of a buckle zipper, the feed pipe will squeeze the light-transmitting tube, resulting in cracks or even rupture of the light-transmitting tube. After the light-transmitting tube generates cracks, it will affect the effect of heat radiation from the heating tube to the orifice of the accommodating cavity, affecting the normal use of the injection molding machine feed heating device; the rupture of the light-transmitting tube may cause the light-emitting core to be exposed, posing a certain safety hazard. Summary of the Invention

[0005] The present utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present utility model provides a safe injection molding heating device for preventing a heating tube from bursting, including:

[0006] Two semi-ring bodies, which are connected to each other by a hinge, and the two semi-ring bodies are enclosed to form an accommodating cavity after being opened or locked by means of a buckle zipper;

[0007] A heating tube is provided on the inner wall of the semi-ring body. The heating tube includes a light-transmitting tube and a light-emitting core built in the light-transmitting tube;

[0008] A protective sleeve is sleeved on each light-transmitting tube, and an opening is provided on one side of the protective sleeve facing the accommodating cavity.

[0009] A technical solution adopted by an embodiment of the present utility model to solve its technical problem is: the protective sleeve includes a major arc section, and both ends of the major arc section are bent towards directions away from its center and form abutting portions for abutting against the outer wall of the feed pipe, and the light-transmitting tube is accommodated in the major arc section.

[0010] One embodiment of the present utility model solves the technical problem by adopting the following technical solution: The protective sleeve is formed by bending a metal plate.

[0011] One embodiment of the present utility model solves the technical problem by adopting the following technical solution: The two ends of the protective sleeve are flush with the two ends of the light-transmitting tube.

[0012] One embodiment of the present utility model solves the technical problem by adopting the following technical solution: A plurality of heating tubes are provided on the semi-cylindrical body, and the plurality of heating tubes are spaced apart along the circumferential direction of the semi-cylindrical body.

[0013] Advantages of the present utility model:

[0014] In this application, the light-transmitting tube is wrapped in the protective sleeve. When the two semi-cylindrical bodies are locked on the feeding tube, the light-transmitting tube does not directly contact the feeding tube to cause extrusion, avoiding cracks and ruptures of the light-transmitting tube and affecting the normal operation of the heating tube, and ensuring the normal operation of the heating device;

[0015] Even if the light-transmitting tube is ruptured under the action of external force extrusion, the fragments generated by the light-transmitting tube will be wrapped inside the protective sleeve to prevent the light-emitting core from being exposed, reducing potential safety hazards caused by the exposure of the light-emitting core. Description of the drawings

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0017] Figure 1 is a cross-sectional view of the safety injection molding heating device for preventing the rupture of the heating tube according to the embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the use of the protective sleeve according to the embodiment of the present application. Detailed description of the specific implementation

[0019] This part will describe the specific embodiments of the present utility model in detail. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0020] In the description of the present utility model, the meaning of "a plurality" is more than two. Understandings such as "greater than", "less than", and "exceeding" do not include the present number, and understandings such as "above", "below", and "within" include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the orientations or positional relationships indicated by up, down, front, back, left, right, etc., they are based on the orientations or positional relationships shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0022] In the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, they can be directly connected, or indirectly connected through an intermediate medium; they can be fixedly connected, or detachably connected, and can also be integrally formed; they can be mechanically connected; they can be the communication inside two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0023] Referring to Figure 1-2 , embodiments of the present application are proposed. The safety injection molding heating device for preventing the rupture of the heating tube described in this embodiment includes:

[0024] Two semi - ring bodies 10 are connected to each other through a hinge 20. The two semi - ring bodies 10 are opened or locked by means of a buckle zip 30 and enclose to form a receiving cavity.

[0025] A heating tube 40 is provided on the inner wall of the semi - ring body 10. The heating tube 40 includes a light - transmitting tube 41 and a light - emitting core 42 built in the light - transmitting tube 41. A light - heat reflecting sheet is arranged on one side of the light - transmitting tube 41. Ceramic wire seats are respectively arranged at both ends of the light - transmitting tube 41, and the ceramic wire seats are connected to a power line.

[0026] A protective sleeve 50 is sleeved on each light - transmitting tube 41, and an opening 51 is provided on the side of the protective sleeve 50 facing the receiving cavity.

[0027] The semi - ring body 10 includes a shell, a semi - ring bottom surface connecting both ends of the shell, and a joint surface. After the two semi - ring bodies 10 are connected, their joint surfaces abut against each other to enclose a receiving cavity for accommodating a feeding tube 60, and the heating tube 40 is built in the receiving cavity. In this embodiment, a plurality of heating tubes 40 are provided on the semi - ring body 10, and the plurality of heating tubes 40 are distributed at intervals along the circumferential direction of the semi - ring body 10.

[0028] Referring to the drawings, the two semi - ring bodies 10 are connected by a hinge 20 and can be switched between an open state and a locked state by means of a buckle zip 30. The power line extends out from one of the semi - ring bodies, and the extending section is placed inside an external electric control mounting bracket.

[0029] When the two semi - ring bodies 10 are locked on the feeding pipe 60, since the light - transmitting pipe 41 is wrapped in the protective sleeve 50, and the heating pipe 40 heats the feeding pipe through the opening 51, and the light - transmitting pipe 41 does not directly contact and squeeze the feeding pipe 60, it avoids the light - transmitting pipe 41 from cracking and breaking, which affects the normal operation of the heating pipe 40, and ensures the normal operation of the heating device;

[0030] Even if the light - transmitting pipe 41 is cracked under the action of external force extrusion, the fragments generated by the light - transmitting pipe 41 will be wrapped inside the protective sleeve 50 to prevent the light - emitting core 42 from being exposed, reducing the safety hazards caused by the exposure of the light - emitting core 42.

[0031] An insulating layer is provided inside the semi - ring body 10. In this embodiment, the protective sleeve 50 is positioned on the insulating layer. Specifically, the protective sleeve 50 includes a major - arc section 52. The two ends of the major - arc section 52 are bent towards the direction away from its center respectively to form abutting portions 53 for abutting against the outer wall of the feeding pipe 60, and the light - transmitting pipe 41 is accommodated in the major - arc section 52.

[0032] When the two semi - ring bodies 10 are locked on the feeding pipe 60, the light - transmitting pipe 41 is inserted into the major - arc section 52, and the protective sleeve 50 abuts against the feeding pipe 60 through the two abutting portions 53 to prevent the protective sleeve 50 from displacing, ensuring the stable position of the protective sleeve 50.

[0033] Preferably, the protective sleeve 50 is formed by bending a metal plate, which is convenient for the manufacture of the protective sleeve 50.

[0034] In this embodiment, the two ends of the protective sleeve 50 are flush with the two ends of the light - transmitting pipe 41, so that the light - transmitting pipe 41 is completely accommodated in the protective sleeve 50 to prevent the light - transmitting pipe 41 from cracking.

[0035] Certainly, the present utility model is not limited to the above - mentioned embodiments. Those skilled in the art can also make equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A safety injection molding heating device for preventing the rupture of a heating tube, characterized in that, Comprising: Two semi-cylindrical bodies (10), which are connected to each other by a hinge (20), and the two semi-cylindrical bodies (10) are opened or locked by means of a buckle zip (30) and then enclose to form a receiving cavity; A heating tube (40) is provided on the inner wall of the semi-cylindrical body (10), and the heating tube (40) includes a light-transmitting tube (41) and a light-emitting core (42) disposed inside the light-transmitting tube (41); A protective sleeve (50) is sleeved on each of the light-transmitting tubes (41), and an opening (51) is provided on one side of the protective sleeve (50) facing the receiving cavity.

2. The safety injection molding heating device for preventing the rupture of the heating tube according to claim 1, characterized in that, The protective sleeve (50) includes a major arc section (52), and both ends of the major arc section (52) are bent in a direction away from its center to form abutting portions (53) for abutting against the outer wall of the feeding pipe (60), and the light-transmitting tube (41) is accommodated in the major arc section (52).

3. The safety injection molding heating device for preventing the heating tube from bursting according to claim 1, wherein The protective sleeve (50) is formed by bending a metal plate.

4. The safety injection molding heating device for preventing the heating tube from bursting according to claim 1, characterized in that, Both ends of the protective sleeve (50) are flush with both ends of the light-transmitting tube (41).

5. The safety injection molding heating device for preventing the heating tube from bursting according to claim 1, wherein, A plurality of heating tubes (40) are provided on the semi-cylindrical body (10), and the plurality of heating tubes (40) are spaced apart along the circumferential direction of the semi-cylindrical body (10).

Images