Cylinder structure of injection molding machine

Abstract

The utility model discloses a machine barrel structure of an injection molding machine, which relates to the field of injection molding machines, and comprises an outer barrel, a middle barrel component and an inner barrel which are coaxially arranged, a space exists between the inner wall surface of the outer barrel and the outer wall surface of the middle barrel component to form a water storage cavity, and the inner wall surface of the middle barrel component is in contact fit with the outer wall surface of the inner barrel. A heating assembly is arranged between the middle cylinder assembly and the inner cylinder, a spiral channel communicated with the water storage cavity is arranged in the middle cylinder assembly, the outer cylinder is provided with a water inlet communicated with the water storage cavity, and the middle cylinder assembly is provided with a water outlet communicated with the spiral channel. The cooling device has the advantage of good cooling effect.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, in particular to a barrel structure of an injection molding machine. 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 materials. 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 barrel of the injection molding machine is very important for the injection molding machine. Since the barrel of the injection molding machine is in a heated state for a long time, it cannot be promptly cooled after the work is completed, which will cause certain damage to the barrel of the injection molding machine itself, directly affecting the service life of the barrel of the injection molding machine, increasing the maintenance or replacement costs of mechanical production, and also affecting the normal production efficiency.

[0003] In order to solve the above-mentioned problems existing in the injection molding machine barrel, it is urgent to improve the technology of the injection molding machine barrel and provide a cooling device for the injection molding machine barrel to avoid damage to the injection molding machine barrel caused by excessive temperature. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides an injection molding machine barrel structure with good cooling effect.

[0005] The technical solution adopted by the utility model is: an injection molding machine barrel structure, which includes an outer barrel, a middle barrel assembly and an inner barrel which are coaxially arranged, a water storage cavity is formed between the inner wall surface of the outer barrel and the outer wall surface of the middle barrel assembly, the inner wall surface of the middle barrel assembly is in contact with the outer wall surface of the inner barrel, a heating assembly is arranged between the middle barrel assembly and the inner barrel, a spiral channel connected to the water storage cavity is arranged in the middle barrel assembly, the outer barrel is provided with a water inlet connected to the water storage cavity, and the middle barrel assembly is provided with a water outlet connected to the spiral channel.

[0006] The middle cylinder assembly comprises a first cylinder body and a second cylinder body which fit together, and the inner wall surface of the first cylinder body and the outer wall surface of the second cylinder body are both provided with spiral grooves forming a spiral channel.

[0007] The inner wall surface of the second cylinder is provided with a plurality of accommodating grooves for accommodating the heating components.

[0008] The first cylinder and the second cylinder are fixed by welding.

[0009] The heating component adopts a plurality of heating hoops connected in sequence.

[0010] The outer wall surface of the outer cylinder is provided with a plurality of heat dissipation rings.

[0011] The beneficial effects of the utility model are as follows: the technical solution forms a cooling water circulation loop with the spiral channel in the middle cylinder assembly by arranging a water storage cavity between the inner wall surface of the outer cylinder and the outer wall surface of the middle cylinder assembly, so as to quickly cool down the barrel structure; the water storage cavity is an annular cavity, which is in all-round contact with the outer cylinder and the middle cylinder assembly; and the water inlet is on the outer cylinder, so as to ensure that the temperature of the outer surface of the outer cylinder is safe; in addition, the method of cooling through the bolt channel is gentle and will not damage the machinery. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the barrel structure of the injection molding machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0013] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0014] As shown in the figure, an injection molding machine barrel structure comprises an outer barrel 1, a middle barrel assembly and an inner barrel 3 which are coaxially arranged. A water storage chamber 2 is formed by a spacing between the inner wall surface of the outer barrel 1 and the outer wall surface of the middle barrel assembly. The inner wall surface of the middle barrel assembly contacts and cooperates with the outer wall surface of the inner barrel 3. A heating assembly 4 is arranged between the middle barrel assembly and the inner barrel 3. A spiral channel 5 communicating with the water storage chamber 2 is arranged in the middle barrel assembly. The outer barrel 1 is provided with a water inlet 6 communicating with the water storage chamber 2. The middle barrel assembly is provided with a water outlet 7 communicating with the spiral channel 5. The technical scheme forms a cooling water circulation circuit with the spiral channel in the middle barrel assembly by arranging a water storage chamber between the inner wall surface of the outer barrel and the outer wall surface of the middle barrel assembly, so as to quickly cool down the barrel structure. Moreover, the water storage chamber is an annular chamber, which is in all-round contact with the outer barrel and the middle barrel assembly. Moreover, the water inlet is on the outer barrel, which can ensure that the temperature of the outer surface of the outer barrel is safe. In addition, the cooling method through the bolt channel is gentle and will not damage the machinery.

[0015] The middle cylinder assembly includes a first cylinder body 8 and a second cylinder body 9 that fit together. The inner wall surface of the first cylinder body 8 and the outer wall surface of the second cylinder body 9 are provided with a spiral groove that forms a spiral channel 5. The first cylinder body 8 and the second cylinder body 9 are fixed by welding. The spiral grooves are respectively processed using a split structure, and then the two are fixed by welding, which has the advantages of low processing cost and stable structure.

[0016] The inner wall surface of the second cylinder 9 is provided with a plurality of accommodating grooves 10 for placing the heating assembly 4. The heating assembly 4 is composed of a plurality of heating hoops connected in sequence.

[0017] The outer wall surface of the outer cylinder 1 is provided with a plurality of heat dissipation rings 11 for heat dissipation.

[0018] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 utility model can be understood according to specific circumstances. In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0020] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the utility model concept is not limited to this utility model. Any modification using the utility model concept will be included in the scope of protection of this patent.

Claims

1. An injection molding machine barrel structure, characterized in that: It comprises an outer cylinder (1), a middle cylinder assembly and an inner cylinder (3) which are coaxially arranged; a water storage cavity (2) is formed between the inner wall surface of the outer cylinder (1) and the outer wall surface of the middle cylinder assembly; the inner wall surface of the middle cylinder assembly is in contact with the outer wall surface of the inner cylinder (3); a heating assembly (4) is provided between the middle cylinder assembly and the inner cylinder (3); a spiral channel (5) communicating with the water storage cavity (2) is provided in the middle cylinder assembly; the outer cylinder (1) is provided with a water inlet (6) communicating with the water storage cavity (2); and the middle cylinder assembly is provided with a water outlet (7) communicating with the spiral channel (5).

2. The barrel structure of the injection molding machine according to claim 1, characterized in that: The middle cylinder assembly comprises a first cylinder (8) and a second cylinder (9) which fit together, and the inner wall surface of the first cylinder (8) and the outer wall surface of the second cylinder (9) are both provided with a spiral groove forming a spiral channel (5).

3. The barrel structure of the injection molding machine according to claim 2, characterized in that: The inner wall surface of the second cylinder (9) is provided with a plurality of accommodating grooves (10) for accommodating the heating components (4).

4. The barrel structure of the injection molding machine according to claim 2, characterized in that: The first cylinder (8) and the second cylinder (9) are fixed by welding.

5. The barrel structure of the injection molding machine according to claim 1, characterized in that: The heating component (4) comprises a plurality of heating hoops connected in sequence.

6. The barrel structure of the injection molding machine according to claim 1, characterized in that: The outer wall surface of the outer cylinder (1) is provided with a plurality of heat dissipation rings (11).

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