Electric heating assembly for heating ring of injection molding machine

Abstract

The utility model provides an electric heating assembly for a heating ring of an injection molding machine, the electric heating assembly is used for heating an object to be heated, the electric heating assembly comprises a plurality of metal fixing pieces which are sequentially distributed around the circumferential direction of the object to be heated, and an electric heating pipe is fixed in each metal fixing piece. A first connecting part is arranged in the middle of one outer side wall of each metal fixing piece, a second connecting part is arranged in the middle of the other outer side wall of each metal fixing piece, an open groove is formed in the outer end of each first connecting part, a rotating shaft is arranged at the outer end of each second connecting part, and the rotating shafts are arranged in the open grooves. Each rotating shaft is rotatably clamped in the adjacent open slot, so that the adjacent metal fixing pieces have a certain angle adjustable range; according to the utility model, the electric heating assembly can adapt to heating ring shells of injection molding machines with more sizes and types, and the electric heating assembly has the advantage of wide application range.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine accessories, in particular to an electric heating component used for a heating ring of an injection molding machine. Background Art

[0002] The heating coil of the injection molding machine is a device used to be installed on the injection molding end of the injection molding machine and used to heat the injection molding end of the injection molding machine, and the electric heating assembly is the core component of the heating coil of the injection molding machine; At present, China Patent Announcement No.: CN103987141B discloses an electric heater that realizes both heat conduction and infrared radiation. The electric heater includes an electric heating body, which is used to convert electrical energy into thermal energy; a quartz tube, in which the electric heating body is arranged; a heat-conducting metal, which is used to fix the quartz tube to the surface of the object to be heated, and the inner surface of the heat-conducting metal is in close contact with the quartz tube and the surface of the object to be heated at the same time; the heat-conducting metal is composed of a plurality of metal profiles. The metal profile is coupled, and the cross-section is an "Ω" shape. Each metal profile includes a "convex" end and a "concave" end. The "convex" end of the metal profile is connected to the "concave" end of the adjacent metal profile. When the "convex" end is connected to the "concave" end, the "convex" end moves in the "concave" end at a certain angle. In the electric heater structure, since the "convex" end and the "concave" end are arranged on the two ends of the metal profile, after the two adjacent metal profiles are connected through the "convex" end and the "concave" end, there is a disadvantage that the relatively adjustable angle range of the two adjacent metal profiles is small, that is, there is a situation where it is impossible to adapt to various sizes of injection molding machine heating ring shells. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an electric heating component for an injection molding machine heating ring, which can enable the electric heating component to adapt to injection molding machine heating ring shells of more sizes and types, that is, it has the advantage of a wide range of applications.

[0004] The utility model provides an electric heating component for a heating ring of an injection molding machine. The electric heating component is used to heat an object to be heated. The electric heating component comprises a plurality of metal fixings which are sequentially distributed in a circumferential direction around the object to be heated. An electric heating tube is fixed inside each metal fixing. A first connecting portion is arranged in the middle of one of the outer side walls of each metal fixing. A second connecting portion is arranged in the middle of the other outer side wall of each metal fixing. An opening groove is arranged at the outer end of each first connecting portion. A rotating shaft is arranged at the outer end of each second connecting portion. Each rotating shaft can be rotatably engaged in an adjacent opening groove so that adjacent metal fixings have a certain angle adjustable range.

[0005] After the utility model adopts the above structure, since each first connecting part and the second connecting part are arranged in the middle of the outer side wall of the corresponding metal fixing part, after the two adjacent metal fixing parts are rotatably connected through the opening groove on the first connecting part and the rotating shaft on the second connecting part, there is a larger angular adjustable range between each two adjacent metal fixing parts, so that the electric heating component can be adapted to more sizes of injection molding machine heating ring shells, that is, it has the advantage of a wide range of applications.

[0006] In one possible implementation, a ceramic friction plate is fitted and fixed on the inner wall of each open groove, and the outer wall of the rotating shaft is in contact with the inner wall of the ceramic friction plate; by fitting and fixing the ceramic friction plate on the inner wall of each open groove, the rotational damping between the rotating shaft and the open groove can be increased, thereby avoiding free rotation, looseness or disengagement between two adjacent metal fixings, that is, the reliability of the connection between the two adjacent metal fixings can be improved.

[0007] In a possible embodiment, each metal fixing is provided with a slot with an opening toward the side of the object to be heated, and each electric heating tube is clamped in the slot on the corresponding metal fixing; by adopting this structure, each electric heating tube can be reliably and conveniently assembled on the corresponding metal fixing.

[0008] In a possible embodiment, a rounded surface is provided on the inner wall of the open end of each slot, and the rounded surface is used to cooperate and guide with the outer wall of the electric heating tube so that the electric heating tube can be inserted into the slot; after the rounded surface is provided on the inner wall of the open end of each slot, when the electric heating tube is fitted into the slot, the rounded surface can cooperate and guide with the outer wall of the electric heating tube so that the electric heating tube can be inserted into the slot.

[0009] In a possible implementation, each first connection portion and each second connection portion are integrally formed with the corresponding metal fixing piece; by adopting this structure, the first connection portion and the second connection portion have the advantage of high connection reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 for Figure 1 Schematic diagram of the structure after enlarging point A in the middle. DETAILED DESCRIPTION

[0012] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0013] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0014] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0015] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] See also Figure 1-2 As shown, an embodiment of the present application discloses an electric heating component for a heating ring of an injection molding machine, the electric heating component is used to heat an object 1 to be heated, and the electric heating component includes a plurality of metal fixings 2 distributed in sequence in the circumferential direction of the object 1 to be heated, an electric heating tube 3 is fixed inside each metal fixing 2, a first connecting portion 21 is provided in the middle of one of the outer walls of each metal fixing 2, a second connecting portion 22 is provided in the middle of the other outer wall of each metal fixing 2, an opening groove 211 is provided at the outer end of each first connecting portion 21, a rotating shaft 221 is provided at the outer end of each second connecting portion 22, and each rotating shaft 221 can be rotatably engaged in an adjacent opening groove 211 so that adjacent metal fixings 2 have a certain angle adjustable range.

[0017] A ceramic friction plate 4 is fitted and fixed on the inner wall of each open groove 211, and the outer wall of the rotating shaft 221 is in contact with the inner wall of the ceramic friction plate 4; by fitting and fixing the ceramic friction plate on the inner wall of each open groove, the rotational damping between the rotating shaft and the open groove can be increased, thereby avoiding free rotation, looseness or disengagement between two adjacent metal fixings, that is, the reliability of the connection between the two adjacent metal fixings can be improved.

[0018] Each metal fixing part 2 is provided with a slot 23 with its opening facing the side of the object to be heated 1, and each electric heating tube 3 is clamped in the slot 23 on the corresponding metal fixing part 2; by adopting this structure, each electric heating tube can be reliably and conveniently assembled on the corresponding metal fixing part.

[0019] A rounded surface 24 is provided on the inner wall of the open end of each slot 23, and the rounded surface 24 is used to cooperate and guide with the outer wall of the electric heating tube 3 so that the electric heating tube 3 can be inserted into the slot 23; after the rounded surface is provided on the inner wall of the open end of each slot, when the electric heating tube is fitted into the slot, the rounded surface can cooperate and guide with the outer wall of the electric heating tube so that the electric heating tube can be inserted into the slot.

[0020] Each first connection part 21 and each second connection part 22 are integrally formed with the corresponding metal fixing member 2; by adopting this structure, the first connection part and the second connection part have the advantage of high connection reliability.

[0021] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An electric heating assembly for a heating ring of an injection molding machine, the electric heating assembly being used to heat an object to be heated (1), the electric heating assembly comprising a plurality of metal fixings (2) distributed in sequence in a circumferential direction around the object to be heated (1), an electric heating tube (3) being fixed inside each of the metal fixings (2), characterized in that: A first connection portion (21) is provided in the middle of one of the outer side walls of each of the metal fixing parts (2), a second connection portion (22) is provided in the middle of the other outer side wall of each of the metal fixing parts (2), an opening groove (211) is provided at the outer end of each of the first connection parts (21), a rotating shaft (221) is provided at the outer end of each of the second connection parts (22), and each of the rotating shafts (221) can be rotatably engaged in an adjacent opening groove (211) so that adjacent metal fixing parts (2) have a certain angular adjustable range.

2. The electric heating assembly for the heating ring of an injection molding machine according to claim 1, characterized in that: A ceramic friction plate (4) is fitted and fixed on the inner wall of each of the opening grooves (211), and the outer wall of the rotating shaft (221) is fitted on the inner wall of the ceramic friction plate (4).

3. The electric heating assembly for the heating ring of an injection molding machine according to claim 1 or 2, characterized in that: Each of the metal fixing pieces (2) is provided with a slot (23) with its opening facing the side of the object to be heated (1), and each of the electric heating tubes (3) is clamped in the slot (23) on the corresponding metal fixing piece (2).

4. The electric heating assembly for the heating ring of an injection molding machine according to claim 3 is characterized in that: A rounded surface (24) is provided on the inner wall of the open end of each of the slots (23), and the rounded surface (24) is used to cooperate with the outer wall of the electric heating tube (3) for guidance so as to facilitate the electric heating tube (3) to be inserted into the slot (23).

5. The electric heating assembly for the heating ring of an injection molding machine according to claim 1, 2 or 4, characterized in that: Each of the first connecting parts (21) and each of the second connecting parts (22) are integrally formed with the corresponding metal fixing part (2).

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