Constant-temperature heater for injection molding machine

Abstract

The utility model belongs to the technical field of injection molding machines, and particularly discloses a constant-temperature heater for an injection molding machine, which comprises a heater body, the heater body is provided with an upper arc-shaped heat preservation shell and a lower arc-shaped heat preservation shell, the upper arc-shaped heat preservation shell and the lower arc-shaped heat preservation shell are provided with a connecting piece for hinging, and the connecting piece comprises a hinging seat and a connecting plate. The hinge seat is fixedly arranged at the hinge end of the inner circumferential wall of the upper arc-shaped heat preservation shell, a fixing piece is arranged at the opposite end of the connecting piece and comprises a first clamping block and a second clamping block, the first clamping block is fixedly arranged on the outer circumferential wall of the upper arc-shaped heat preservation shell, and fastening frames are movably installed at the two ends of the first clamping block. The second clamping block is fixedly arranged on the lower arc-shaped heat preservation shell. The two ends of the upper arc-shaped heat preservation shell and the two ends of the lower arc-shaped heat preservation shell are each provided with a fan-shaped installation plate, and a plurality of electric heating pipes are arranged between the installation plates on the two sides in an array mode.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a constant temperature heater for injection molding machines. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. The working principle of the injection molding machine is similar to that of a syringe for injection. It uses the thrust of the screw (or plunger) to inject the plasticized molten state (i.e., viscous flow state) plastic into the closed mold cavity, and obtains the product after solidification and finalization. Injection molding is a cyclic process. At present, most of the injection molding machine heaters on the market are installed by bolt connection, which is not convenient to disassemble when the device fails for maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide a constant temperature heater for an injection molding machine to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a constant temperature heater for an injection molding machine, comprising a heater body, wherein the heater body is provided with an upper arc-shaped heat-insulating shell and a lower arc-shaped heat-insulating shell, wherein the upper arc-shaped heat-insulating shell and the lower arc-shaped heat-insulating shell are combined to form a cylindrical sleeve with a hollow middle part, wherein the upper arc-shaped heat-insulating shell and the lower arc-shaped heat-insulating shell are hingedly connected by a connecting piece, wherein the connecting piece comprises an articulated seat and a connecting plate, wherein the articulated seat is fixedly arranged at the articulated end of the inner peripheral wall of the upper arc-shaped heat-insulating shell, wherein the articulated seat structure is a cylindrical protrusion at both ends of a middle rectangular block, and the connecting plate It is fixedly arranged on the lower arc-shaped insulation shell, and a through hole is provided in the center of the connecting plate, which is sleeved on the columnar protrusion of the hinge seat. A fixing piece is provided at the opposite end of the connecting piece, and the fixing piece includes a first clamping block and a second clamping block. The first clamping block is fixedly arranged on the outer peripheral wall of the upper arc-shaped insulation shell, and a fastening frame is movably installed at both ends of the first clamping block, and the second clamping block is fixedly arranged on the lower arc-shaped insulation shell; both ends of the upper arc-shaped insulation shell and the lower arc-shaped insulation shell are provided with fan-shaped mounting plates, and a plurality of electric heating tubes are arranged in an array between the mounting plates on both sides.

[0005] Preferably, after the upper arc-shaped insulation shell and the lower arc-shaped insulation shell are combined, an insulation layer is arranged on the outer layer, the insulation layer adopts insulation cotton, and an insulating layer is arranged on the inner side of the insulation layer.

[0006] Preferably, a mounting seat is provided through the center of the outer peripheral wall of the upper arc-shaped heat-insulating shell, and a fan is fixedly mounted on the mounting seat.

[0007] Preferably, the heater body is sleeved on the barrel end outside the injection molding machine.

[0008] Preferably, the first clamping block and the second clamping block are arranged correspondingly.

[0009] Preferably, several of the electric heating tubes are connected in series.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes the hinge connection of the two arc-shaped insulation shells by arranging connecting parts on the upper arc-shaped insulation shell and the lower arc-shaped insulation shell, and the two arc-shaped insulation shells can be assembled and disassembled simply by rotating the fastening frame, which is convenient for the disassembly and assembly of the heater body, thereby facilitating maintenance personnel to repair the heater body; the utility model installs a fan on the heater body by arranging a mounting seat, and when the temperature of the heater is stabilized or needs to be cooled, the air circulation is driven by the fan to accelerate the cooling time and avoid the raw material temperature in the barrel of the injection molding machine being too high and causing burning. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 It is a schematic diagram of the utility model;

[0014] Figure 4 This is a schematic diagram of the installation structure of the utility model.

[0015] In the figure: 100, injection molding machine; 200, heater body; 1, upper arc-shaped insulation shell; 101, mounting seat; 102, hinged seat; 103, first clamping block; 104, fastening frame; 2, lower arc-shaped insulation shell; 201, connecting plate; 202, second clamping block; 3, electric heating tube; 4, mounting plate; 5, insulation layer; 6, insulation layer; 7, fan. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-4 The utility model provides a technical solution: a constant temperature heater for an injection molding machine, comprising a heater body 200, wherein the heater body 200 is provided with an upper arc-shaped heat-insulating shell 1 and a lower arc-shaped heat-insulating shell 2, wherein the upper arc-shaped heat-insulating shell 1 and the lower arc-shaped heat-insulating shell 2 are combined to form a cylindrical sleeve with a hollow middle, wherein the upper arc-shaped heat-insulating shell 1 and the lower arc-shaped heat-insulating shell 2 are hingedly connected by a connecting piece, wherein the connecting piece comprises an articulated seat 102 and a connecting plate 201, wherein the articulated seat 102 is fixedly arranged at the articulated end of the inner peripheral wall of the upper arc-shaped heat-insulating shell 1, wherein the articulated seat 102 is structured as a cylindrical protrusion at both ends of a middle rectangular block, wherein the connecting plate 201 is fixedly arranged at the inner peripheral wall of the upper arc-shaped heat-insulating shell 1 ... On the lower arc-shaped insulation shell 2, the center of the connecting plate 201 is provided with a through hole which is sleeved on the cylindrical protrusion of the hinge seat 102, and a fixing part is provided at the opposite end of the connecting part, and the fixing part includes a first clamping block 103 and a second clamping block 202, the first clamping block 103 is fixedly arranged on the outer peripheral wall of the upper arc-shaped insulation shell 1, and a fastening frame 104 is movably installed at both ends of the first clamping block 103, and the second clamping block 202 is fixedly arranged on the lower arc-shaped insulation shell 2; both ends of the upper arc-shaped insulation shell 1 and the lower arc-shaped insulation shell 2 are provided with fan-shaped mounting plates 4, and a plurality of electric heating tubes 3 are arranged in an array between the mounting plates 4 on both sides.

[0020] Furthermore, after the upper arc-shaped insulation shell 1 and the lower arc-shaped insulation shell 2 are combined, an insulation layer 5 is arranged on the outer layer. The insulation layer 5 is made of insulation cotton. The insulation cotton has the advantages of heat preservation, reducing the heat loss of the heater, and shortening the heating time. The insulation layer 5 is provided with an insulating layer 6 on the inner side. When the device leaks electricity, the insulating layer 6 can play a certain protective role.

[0021] Furthermore, a mounting seat 101 is provided through the center of the outer peripheral wall of the upper arc-shaped heat-insulating shell 1 , and a fan 7 is fixedly mounted on the mounting seat 101 .

[0022] Furthermore, the heater body 200 is sleeved on the barrel end outside the injection molding machine 100 .

[0023] Furthermore, the first clamping block 103 and the second clamping block 202 are arranged correspondingly.

[0024] Furthermore, a plurality of the electric heating tubes 3 are connected in series, so that when a single electric heating tube 3 fails, the electric heating tube 3 can still be used.

[0025] Working principle: The utility model provides a constant temperature heater for an injection molding machine, including a heater body 200, wherein the heater body 200 is provided with an upper arc-shaped insulation shell 1 and a lower arc-shaped insulation shell 2, wherein the upper arc-shaped insulation shell 1 and the lower arc-shaped insulation shell 2 are combined to form a cylindrical sleeve with a hollow middle part, wherein the upper arc-shaped insulation shell 1 and the lower arc-shaped insulation shell 2 are hingedly connected with a connecting piece, wherein the connecting piece comprises an articulated seat 102 and a connecting plate 201, wherein the articulated seat 102 is fixedly arranged at the articulated end of the inner wall of the upper arc-shaped insulation shell 1, wherein the articulated seat 102 is structured as a cylindrical protrusion at both ends of a middle rectangular block, wherein the connecting plate 201 is fixedly arranged on the lower arc-shaped insulation shell 2, wherein a through hole is provided at the center of the connecting plate 201 and is sleeved on the cylindrical protrusion of the articulated seat 102, wherein a fixing piece is provided at the opposite end of the connecting piece, wherein the fixing piece comprises a first clamping block 103 and a second clamping block 202, wherein the first clamping block 103 is fixedly arranged on the upper arc-shaped insulation shell 1 On the outer wall of the temperature shell 1, a fastening frame 104 is movably installed at both ends of the first clamping block 103, and the second clamping block 202 is fixedly set on the lower arc-shaped insulation shell 2; both ends of the upper arc-shaped insulation shell 1 and the lower arc-shaped insulation shell 2 are provided with fan-shaped mounting plates 4, and a plurality of electric heating tubes 3 are arranged in an array between the mounting plates 4 on both sides; the utility model realizes the hinge connection of the two arc-shaped insulation shells by arranging connecting pieces on the upper arc-shaped insulation shell 1 and the lower arc-shaped insulation shell 2, and the combination and disassembly of the two arc-shaped insulation shells can be completed by simply rotating the fastening frame 104, which is convenient for the disassembly and assembly of the heater body 200, so as to facilitate the maintenance personnel to repair the heater body 200; the utility model installs the fan 7 on the heater body 200 by arranging a mounting seat. When the temperature of the heater is stable or needs to be cooled, the fan 7 drives the air circulation to accelerate the cooling time and avoid the raw material temperature in the barrel of the injection molding machine 100 being too high and causing burning.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant temperature heater for an injection molding machine, characterized in that: The heater body (200) comprises an upper arc-shaped heat-insulating shell (1) and a lower arc-shaped heat-insulating shell (2). The upper arc-shaped heat-insulating shell (1) and the lower arc-shaped heat-insulating shell (2) are combined to form a cylindrical sleeve with a hollow center. The upper arc-shaped heat-insulating shell (1) and the lower arc-shaped heat-insulating shell (2) are hingedly connected by a connecting piece. The connecting piece comprises a hinge seat (102) and a connecting plate (201). The hinge seat (102) is fixedly arranged at the hinge end of the inner peripheral wall of the upper arc-shaped heat-insulating shell (1). The hinge seat (102) is a cylindrical protrusion at both ends of a middle rectangular block. The connecting plate (201) is fixedly arranged on the lower arc-shaped heat-insulating shell (2). (201) A through hole is provided at the center thereof and is sleeved on the cylindrical protrusion of the hinge seat (102); a fixing member is provided at the opposite end of the connecting member, and the fixing member comprises a first clamping block (103) and a second clamping block (202); the first clamping block (103) is fixedly provided on the outer peripheral wall of the upper arc-shaped insulation shell (1); a fastening frame (104) is movably installed at both ends of the first clamping block (103); the second clamping block (202) is fixedly provided on the lower arc-shaped insulation shell (2); both ends of the upper arc-shaped insulation shell (1) and the lower arc-shaped insulation shell (2) are provided with fan-shaped mounting plates (4), and a plurality of electric heating tubes (3) are arranged in an array between the mounting plates (4) on both sides.

2. A constant temperature heater for an injection molding machine according to claim 1, characterized in that: After the upper arc-shaped heat-insulating shell (1) and the lower arc-shaped heat-insulating shell (2) are combined, a heat-insulating layer (5) is arranged on the outer layer, the heat-insulating layer (5) uses heat-insulating cotton, and an insulating layer (6) is arranged on the inner side of the heat-insulating layer (5).

3. The constant temperature heater for injection molding machine according to claim 1, characterized in that: A mounting seat (101) is provided through the center of the outer peripheral wall of the upper arc-shaped heat-insulating shell (1), and a fan (7) is fixedly mounted on the mounting seat (101).

4. The constant temperature heater for injection molding machine according to claim 1, characterized in that: The heater body (200) is sleeved on the barrel end outside the injection molding machine (100).

5. The constant temperature heater for injection molding machine according to claim 1, characterized in that: The first clamping block (103) and the second clamping block (202) are arranged correspondingly.

6. The constant temperature heater for injection molding machine according to claim 1, characterized in that: A plurality of the electric heating tubes (3) are connected in series.

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