Combined screw with cooling function

Abstract

The utility model relates to the technical field of extruder screws, in particular to a combined screw with a cooling function, which comprises a screw body and a cooling water pipe, the outer surface of the screw body is fixedly connected with a spiral blade, the right end of the screw body is provided with a cooling cavity, the right part of the inner wall surface of the cooling cavity is provided with an internal thread groove, and the cooling water pipe is connected with the cooling cavity. The right end of the cooling water pipe is fixedly sleeved with a pipe head, the right portion of the outer surface of the cooling water pipe is provided with an external thread groove, the right end of the cooling water pipe is provided with a cooling water cavity, and the right end of the pipe head is fixedly connected with a flange. According to the combined type screw rod with the cooling function, the cooling water pipe is arranged, the left portion of the cooling water pipe is sleeved with the cooling cavity, and when the external thread groove makes contact with the internal thread groove, the cooling water pipe is rotated, so that the external thread groove and the internal thread groove are embedded together to achieve threaded connection; therefore, the cooling water pipe can be mounted in the cooling cavity of the screw body simply and conveniently, and is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder screws, in particular to a combined screw with a cooling function. Background Art

[0002] Extrusion molding equipment mainly consists of two parts: the main machine and the auxiliary machine. The main machine is called an extruder, which consists of an extrusion system screw, a barrel, a feeding device, etc. The screw, as the heart of the extruder, has a very important influence on the quality and output of the extruder product. The main functions of a screw are to transport materials, transfer heat to plasticize materials, and mix and homogenize materials. In order to achieve these functions of the screw and adapt to changes in the physical state of the material, a conventional full-thread screw is usually designed into three sections.

[0003] When ceramic materials (including aluminum oxide, magnesium oxide, molybdenum disilicide, silicon carbide, etc.) are extruded in an extruder, the processing temperature is generally not higher than 30°C, because once this temperature is exceeded, the organic formula in the ceramic material will decompose. Therefore, the temperature control requirements of the extruder are particularly high, and the existing extruder screw cannot meet the requirements. Therefore, we launched a combined screw with cooling function. Utility Model Content

[0004] The main purpose of the utility model is to provide a combined screw with a cooling function, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A combined screw with a cooling function comprises a screw body and a cooling water pipe, wherein a spiral blade is fixedly connected to the outer surface of the screw body, a cooling cavity is opened at the right end of the screw body, an internal thread groove is arranged on the right part of the inner wall surface of the cooling cavity, a pipe head is fixedly sleeved on the right end of the cooling water pipe, an external thread groove is arranged on the right part of the outer surface of the cooling water pipe, a cooling water cavity is opened at the right end of the cooling water pipe, a flange is fixedly connected to the right end of the pipe head, and a plurality of mounting holes passing through the left and right sides are opened at the right end of the flange.

[0007] Preferably, the cooling water pipe is sleeved in the cooling cavity.

[0008] Preferably, the internal thread groove and the external thread groove are matched.

[0009] Preferably, the cooling water pipe is threadedly connected in the cooling cavity via an internal thread groove and an external thread groove.

[0010] Preferably, the plurality of mounting holes are distributed in a central annular array of the flange.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. By setting a cooling water pipe, the left part of the cooling water pipe is inserted into the cooling cavity. When the external thread groove contacts the internal thread groove, the cooling water pipe is rotated so that the external thread groove and the internal thread groove are embedded together to realize threaded connection, thereby realizing the installation of the cooling water pipe in the cooling cavity of the screw body, which is simple, convenient and easy to disassemble and assemble.

[0013] 2. By setting a cooling water cavity and injecting cooling water into the cooling water cavity, the cooling function of the screw body is realized by the cooling water, thereby improving the use effect of the screw body, and the cooling water is easy to replace, and the convenience of use is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a combined screw with cooling function of the utility model;

[0015] Figure 2 This is a schematic diagram of the combined connection structure of the screw body and the spiral blades of a combined screw with cooling function of the utility model;

[0016] Figure 3 It is a schematic cross-sectional structure diagram of a screw body and spiral blades of a combined screw with cooling function of the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the combined connection structure of a cooling water pipe and a pipe head of a combined screw with cooling function.

[0018] In the figure: 1. Screw body; 2. Cooling water pipe; 3. Spiral blade; 4. Cooling chamber; 5. Internal thread groove; 6. Pipe head; 7. External thread groove; 8. Cooling water chamber; 9. Flange; 10. Mounting hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 an indirect connection 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.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] A combined screw with cooling function comprises a screw body 1 and a cooling water pipe 2, wherein a spiral blade 3 is fixedly connected to the outer surface of the screw body 1, a cooling cavity 4 is opened at the right end of the screw body 1, an internal thread groove 5 is arranged on the right part of the inner wall surface of the cooling cavity 4, a pipe head 6 is fixedly sleeved on the right end of the cooling water pipe 2, an external thread groove 7 is arranged on the right part of the outer surface of the cooling water pipe 2, a cooling water cavity 8 is opened at the right end of the cooling water pipe 2, a flange 9 is fixedly connected to the right end of the pipe head 6, and a plurality of mounting holes 10 passing through the left and right sides are opened at the right end of the flange 9.

[0024] In this embodiment, the cooling water pipe 2 is sleeved in the cooling chamber 4; the internal thread groove 5 and the external thread groove 7 are adapted to each other; the cooling water pipe 2 is threadedly connected in the cooling chamber 4 through the internal thread groove 5 and the external thread groove 7; and a plurality of mounting holes 10 are distributed in a central annular array of the flange 9.

[0025] It should be noted that the utility model is a combined screw with a cooling function. During use, the left part of the cooling water pipe 2 is inserted into the cooling chamber 4. When the external thread groove 7 contacts the internal thread groove 5, the cooling water pipe 2 is rotated so that the external thread groove 7 and the internal thread groove 5 are embedded together to achieve a threaded connection, thereby realizing the installation of the cooling water pipe 2 in the cooling chamber 4 of the screw body 1. It is simple, convenient and easy to disassemble and assemble. Then, the screw body 1 is installed together with the extruder through a number of mounting holes 10, and cooling water is injected into the cooling water chamber 8. The cooling function of the screw body 1 is realized by the cooling water, thereby improving the use effect of the screw body 1, and the cooling water is easy to replace, and the convenience of use is good.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A combined screw with cooling function, comprising a screw body (1) and a cooling water pipe (2), characterized in that: The outer surface of the screw body (1) is fixedly connected with a spiral blade (3), the right end of the screw body (1) is provided with a cooling cavity (4), the right part of the inner wall surface of the cooling cavity (4) is provided with an internal thread groove (5), the right end of the cooling water pipe (2) is fixedly sleeved with a pipe head (6), the right part of the outer surface of the cooling water pipe (2) is provided with an external thread groove (7), the right end of the cooling water pipe (2) is provided with a cooling water cavity (8), the right end of the pipe head (6) is fixedly connected with a flange (9), and the right end of the flange (9) is provided with a plurality of mounting holes (10) passing through to the left and right.

2. The combined screw with cooling function according to claim 1, characterized in that: The cooling water pipe (2) is sleeved in the cooling cavity (4).

3. The combined screw with cooling function according to claim 1, characterized in that: The internal thread groove (5) and the external thread groove (7) are adapted to each other.

4. The combined screw with cooling function according to claim 1, characterized in that: The cooling water pipe (2) is threadedly connected in the cooling cavity (4) via an internal thread groove (5) and an external thread groove (7).

5. The combined screw with cooling function according to claim 1, characterized in that: The plurality of mounting holes (10) are distributed in a central annular array of the flange (9).

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