Link structure for heating ring

Abstract

The utility model provides a link structure for a heating ring, which comprises a plurality of metal fixing pieces which are sequentially distributed around the circumferential direction of an object to be heated, an electric heating pipe is fixed on the inner side of each metal fixing piece, and the electric heating pipes are used for heating the object to be heated; every two adjacent metal fixing pieces are connected through one metal connecting piece. Rotating shafts expanding outwards are formed at the two ends of each metal connecting piece; connecting parts are arranged in the middles of the outer walls of the left side and the right side of each metal fixing piece, and each connecting part is provided with an open groove facing one side of the corresponding metal connecting piece. The rotating shafts located at the two ends of each metal connecting piece are rotationally embedded into one of the open grooves in the two adjacent metal fixing pieces so that a certain angle adjustable range can be formed between the two adjacent metal fixing pieces. The injection molding machine heating ring shell mold can be adapted to injection molding machine heating ring shells with more sizes and types.

Description

Technical Field

[0001] The utility model relates to the technical field of heating ring accessories for injection molding machines, and in particular to a linking structure for a heating ring. 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 a linking structure for a heating ring, which can be adapted to the heating ring housings of injection molding machines of more sizes and types, that is, has the advantage of a wide range of applications.

[0004] The utility model provides a link structure for a heating ring, comprising a plurality of metal fixings which are sequentially distributed in the circumferential direction of an object to be heated, an electric heating tube being fixed on the inner side of each metal fixing, and the electric heating tube being used for heating the object to be heated; every two adjacent metal fixings are connected by a metal connecting piece; both ends of each metal connecting piece form a rotating shaft expanding outward; a connecting part is arranged in the middle of the outer wall on the left and right sides of each metal fixing, and each connecting part is provided with an open groove facing one side of the corresponding metal connecting piece, and the rotating shafts located at the two ends of each metal connecting piece are respectively rotatably embedded in one of the open grooves on the two adjacent metal fixing pieces so that a certain angle adjustable range is provided between the two adjacent metal fixing pieces.

[0005] After the utility model adopts the above structure, since every two adjacent metal fixings are connected by a metal connecting piece, both ends of each metal connecting piece form a rotating shaft expanding outward; a connecting part is provided in the middle of the outer walls on the left and right sides of each metal fixing piece, and each connecting part is provided with an open groove facing the corresponding metal connecting piece. The rotating shafts located at both ends of each metal connecting piece are rotatably embedded in one of the open grooves on the two adjacent metal fixing pieces, so that after the two adjacent metal fixing pieces are rotatably connected by the metal connecting piece, a larger angle adjustable range is provided between each two adjacent metal fixing pieces, so that more sizes of injection molding machine heating ring shells can be adapted, that is, it has the advantage of a wide range of application.

[0006] In a possible embodiment, protrusions extending outward are provided on the left and right outer walls of the inner end portion of each metal fixing, and the protrusions are used to abut against the outer wall of the object to be heated; after protrusions extending outward are provided on the left and right outer walls of the inner end portion of each metal fixing, after several metal fixings are circumferentially wrapped around the outer wall of the object to be heated, each protrusion can abut against the outer wall of the object to be heated, thereby increasing the contact area between the metal fixing and the object to be heated, accelerating the heat conduction between the metal fixing and the object to be heated, and improving the heating efficiency of the object to be heated.

[0007] In a possible embodiment, heat-conducting fins are provided on the left and right outer walls of the outer end portion of each metal fixing. By providing heat-conducting fins on the left and right outer walls of the outer end portion of each metal fixing, the heat located outside the metal fixing can be better transferred to the insulation layer located in the heating ring of the injection molding machine for heat storage, and the heat stored in the insulation layer can achieve circumferentially uniform heating of the object to be heated.

[0008] In a possible embodiment, each connection part, protrusion and thermal fin is integrally formed with the corresponding metal fixing part; by adopting this structure, the connection strength between the connection part, protrusion and thermal fin and the metal fixing part is high, and because each connection part, protrusion and thermal fin is integrally formed with the corresponding metal fixing part, it has the advantage of good integrity.

[0009] In a possible embodiment, the outer side wall of each rotating shaft is in close contact with the inner side wall of the opening groove at the corresponding position; by adopting this structure, since the outer side wall of each rotating shaft is in close contact with the inner side wall of the opening groove at the corresponding position, it is possible to avoid the metal fixing part from rotating freely relative to the metal connecting part, that is, it is possible to improve the stability and reliability of two adjacent metal fixing parts after being connected by the metal connecting part.

[0010] In a possible implementation, the rotating shafts at both ends of each metal connector are integrally formed with the corresponding metal connector; by adopting this structure, the advantages of high connection strength between the rotating shaft and the metal connector and good integrity are achieved.

[0011] 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.

[0012] 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.

[0013] In a possible implementation, each metal connector forms a “Π”-shaped structure.

[0014] In a possible implementation, each metal connector forms a “︹”-shaped structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model when the technical solution of embodiment 1 is adopted;

[0016] FIG2 is a schematic structural diagram of a metal fixing member when the utility model adopts the technical solution of Embodiment 1;

[0017] FIG3 is a schematic structural diagram of a metal connector when the utility model adopts the technical solution of Embodiment 1;

[0018] FIG4 is a schematic diagram of the structure of the utility model when the technical solution of the second embodiment is adopted. DETAILED DESCRIPTION

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Embodiment 1

[0024] See also Figure 1 -3, the embodiment of the present application discloses a link structure for a heating ring, comprising a plurality of metal fixings 1 distributed in sequence in the circumferential direction of an object to be heated, an electric heating tube 2 being fixed on the inner side of each metal fixing 1, and the electric heating tube 2 being used to heat the object to be heated; every two adjacent metal fixings 1 are connected by a metal connecting piece 3; both ends of each metal connecting piece 3 form an outwardly expanding rotating shaft 31; a connecting portion 11 is provided in the middle of the outer walls on the left and right sides of each metal fixing 1, and each connecting portion 11 is provided with an open groove 12 facing the corresponding side of the metal connecting piece 3, and the rotating shafts 31 located at the two ends of each metal connecting piece 3 are respectively rotatably embedded in one of the open grooves 12 on the two adjacent metal fixings 1 so that there is a certain angle adjustable range between the two adjacent metal fixings 1.

[0025] After the utility model adopts the above structure, since every two adjacent metal fixings are connected by a metal connecting piece, both ends of each metal connecting piece form a rotating shaft that expands outwards; a connecting part is provided in the middle of the outer walls on the left and right sides of each metal fixing piece, and each connecting part is provided with an open groove facing the side of the corresponding metal connecting piece, and the rotating shafts located at both ends of each metal connecting piece are rotatably embedded in one of the open grooves on the two adjacent metal fixing pieces, so that after the two adjacent metal fixing pieces are rotatably connected by the metal connecting piece, a larger angle adjustable range is provided between each two adjacent metal fixing pieces, so that more The size type of the injection molding machine heating ring shell has the advantage of a wide range of applications; in addition, since two adjacent metal fixings are connected by a metal connecting piece, when the electric heating tube inside a metal fixing is damaged, it is only necessary to remove the connecting pieces on both sides of the metal fixing to remove the metal fixing together with the electric heating tube, that is, it has the advantage of convenient disassembly of the metal fixing and the electric heating tube, and then the metal connecting piece with the new electric heating tube is assembled to the position of the original metal fixing, and the adjacent metal fixings can be reconnected through the metal connecting piece. Through the above structure and steps, it has the advantage of convenient replacement of the electric heating tube.

[0026] The left and right outer walls of the inner end of each metal fixing 1 are provided with protrusions 13 extending outward, and the protrusions 13 are used to abut against the outer wall of the object to be heated; after the protrusions extending outward are provided on the left and right outer walls of the inner end of each metal fixing, after several metal fixings are circumferentially wrapped around the outer wall of the object to be heated, each protrusion can abut against the outer wall of the object to be heated, thereby increasing the contact area between the metal fixing and the object to be heated, accelerating the heat conduction between the metal fixing and the object to be heated, and improving the heating efficiency of the object to be heated.

[0027] Heat-conducting fins 14 are arranged on the left and right outer walls of the outer end of each metal fixing 1; by arranging heat-conducting fins on the left and right outer walls of the outer end of each metal fixing, the heat located outside the metal fixing can be better transferred to the insulation layer located in the heating ring of the injection molding machine for heat storage, and the heat stored in the insulation layer can achieve circumferential uniform heating of the object to be heated.

[0028] Each connection part 11, protrusion 13 and heat-conducting fin 14 is integrally formed with the corresponding metal fixing part 1; by adopting this structure, the connection strength between the connection part, protrusion and heat-conducting fin and the metal fixing part is high, and because each connection part, protrusion and heat-conducting fin is integrally formed with the corresponding metal fixing part, it has the advantage of good integrity.

[0029] The outer wall of each rotating shaft 31 is in close contact with the inner wall of the opening groove 12 at the corresponding position. By adopting this structure, since the outer wall of each rotating shaft is in close contact with the inner wall of the opening groove at the corresponding position, it is possible to avoid the metal fixing part from rotating freely relative to the metal connecting part, that is, it is possible to improve the stability and reliability of two adjacent metal fixing parts after being connected by the metal connecting part.

[0030] The rotating shafts 31 located at both ends of each metal connector 3 are integrally formed with the corresponding metal connector 3; by adopting this structure, the advantages of high connection strength between the rotating shaft and the metal connector and good integrity are achieved.

[0031] Each metal fixing part 1 is provided with a slot 15 with its opening facing the side of the object to be heated, and each electric heating tube 2 is clamped in the slot 15 on the corresponding metal fixing part 1; by adopting this structure, each electric heating tube can be reliably and conveniently assembled on the corresponding metal fixing part.

[0032] A rounded surface 16 is provided on the inner wall of the open end of each slot 15, and the rounded surface 16 is used to cooperate and guide with the outer wall of the electric heating tube 2 so that the electric heating tube 2 can be inserted into the slot 15; 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.

[0033] Each metal connecting piece forms a "Π"-shaped structure.

[0034] Embodiment 2

[0035] The difference from the first embodiment is that each metal connecting piece forms a "︹"-shaped structure.

[0036] The shape of the metal connecting piece and the opening position of the opening groove on the connecting part can be flexibly set according to the angle adjustment range of the adjacent metal fixing piece.

[0037] 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. A link structure for a heating coil, comprising a plurality of metal fixings (1) sequentially distributed in a circumferential direction around an object to be heated, an electric heating tube (2) being fixed on the inner side of each of the metal fixings (1), the electric heating tube (2) being used to heat the object to be heated; characterized in that: Each two adjacent metal fixings (1) are connected by a metal connecting piece (3); both ends of each metal connecting piece (3) form a rotating shaft (31) that expands outwards; a connecting portion (11) is provided in the middle of the outer walls on the left and right sides of each metal fixing piece (1); each connecting portion (11) is provided with an open groove (12) facing one side of the corresponding metal connecting piece (3); the rotating shaft (31) located at both ends of each metal connecting piece (3) is rotatably embedded in one of the open grooves (12) on the two adjacent metal fixing pieces (1) so that a certain angle adjustable range exists between the two adjacent metal fixing pieces (1).

2. The link structure for the heating coil according to claim 1, characterized in that: The left and right outer walls of the inner end of each metal fixing member (1) are provided with protrusions (13) extending outwards, and the protrusions (13) are used to abut against the outer wall of the object to be heated.

3. The link structure for a heating coil according to claim 1 or 2, characterized in that: Heat conducting fins (14) are provided on the left and right outer walls of the outer end of each metal fixing piece (1).

4. The link structure for the heating coil according to claim 3, characterized in that: Each of the connecting portion (11), the protruding portion (13) and the heat conducting fin (14) is integrally formed with the corresponding metal fixing piece (1).

5. The link structure for the heating ring according to claim 1, 2 or 4, characterized in that: The outer side wall of each rotating shaft (31) is in close contact with the inner side wall of the opening groove (12) at the corresponding position.

6. The link structure for the heating coil according to claim 5, characterized in that: The rotating shafts (31) located at both ends of each of the metal connecting pieces (3) are integrally formed with the corresponding metal connecting piece (3).

7. The link structure for the heating coil according to claim 1, characterized in that: Each of the metal fixings (1) is provided with a slot (15) with its opening facing the side of the object to be heated, and each of the electric heating tubes (2) is mounted in the slot (15) on the corresponding metal fixing (1).

8. The link structure for the heating coil according to claim 7, characterized in that: A rounded surface (16) is provided on the inner wall of the open end of each of the slots (15), and the rounded surface (16) is used to cooperate with the outer wall of the electric heating tube (2) for guidance so as to facilitate the electric heating tube (2) to be inserted into the slot (15).

9. The link structure for a heating coil according to claim 1, characterized in that: Each of the metal connecting pieces (3) forms a "Π"-shaped structure.

10. The link structure for a heating coil according to claim 1, characterized in that: Each of the metal connecting pieces (3) forms a "︹"-shaped structure.

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