Novel heat dissipation charging barrel

Abstract

A novel heat dissipation charging barrel comprises a hollow barrel body, first annular protruding edges and second annular protruding edges are arranged on the barrel body in the length direction at intervals, annular grooves are formed between the adjacent first annular protruding edges and between the first annular protruding edges and the second annular protruding edges, and flow guide grooves are machined in the surfaces of the first annular protruding edges and the surfaces of the second annular protruding edges in the length direction of the barrel body. The diversion trench is communicated with the annular groove; the annular groove is of a three-section distribution structure in the length direction of the barrel and comprises a front section, a middle section and a rear section, the width of the annular groove in the front section range is smaller than that in the rear section range, the width of the annular groove in the rear section range is smaller than that in the middle section range, and a feeding opening is formed in the end, close to the front section, of the barrel. According to the charging barrel structure, the annular grooves distributed in the circumferential direction and the flow guide grooves distributed in the axial direction are formed in the surface, the flow guide grooves communicate with the annular grooves to form air channels, the annular grooves are matched with functional partitions in the charging barrel to form three-section different-width design, and the heat dissipation effect is good.

Description

Technical Field

[0001] The utility model relates to a novel heat dissipating barrel. Background Art

[0002] Screw extruder is a machine that can concentrate a series of basic chemical unit processes, such as solid conveying, pressurization, melting, exhaust, dehumidification, melt conveying and pumping, on the screw inside the extruder. When the material enters the barrel through the hopper, the material is mixed, melted and conveyed in the barrel under the force of the rotating screw, and then extruded through the die at the discharge end of the barrel; when different materials enter the melting section of the barrel, the heat transferred to the barrel by the barrel heater and the heat generated by the extrusion and shearing of the material by the screw begin to melt, so that different materials basically become melts after passing through this section, and then the melt passes through the melt conveying section and enters the mixing section for further mixing. Since the surface metal shell of the melting section of the barrel often has a higher temperature, when the heat generated and accumulated by the barrel exceeds the heat required by the material, it will affect the processing effect of the barrel on the material. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides a new type of heat dissipation barrel.

[0004] To achieve the above-mentioned purpose, the utility model provides a novel heat dissipation barrel, comprising a hollow barrel, wherein a first annular convex edge and a second annular convex edge are arranged at intervals along the length direction of the barrel, annular grooves are formed between adjacent first annular convex edges and between the first annular convex edge and the second annular convex edge, guide grooves are processed on the surfaces of the first annular convex edge and the second annular convex edge along the length direction of the barrel, the guide grooves are evenly distributed along the circumferential direction of the first annular convex edge, and the guide grooves are connected to the annular grooves;

[0005] The annular groove is distributed in three sections along the length direction of the cylinder, including a front section, a middle section, and a rear section. The width of the annular groove within the front section is smaller than the width within the rear section, and the width of the annular groove within the rear section is smaller than the width within the middle section. The depths of the annular groove within the front section, the middle section, and the rear section are consistent, and a feeding port is provided at one end of the cylinder close to the front section.

[0006] As a further improvement of the present invention, the width of the second annular convex edge is greater than that of the first annular convex edge, and a radial through hole is machined on the annular convex edge to penetrate into the inner cavity of the cylinder, and the through hole is used to install a temperature sensor.

[0007] As a further improvement of the utility model, the depth of the guide groove is smaller than that of the annular groove.

[0008] As a further improvement of the utility model, the cross-section of the guide groove is U-shaped, the center line of the guide groove forms an angle with the central axis of the guide groove, and the directions of adjacent guide grooves are consistent.

[0009] As a further improvement of the utility model, both ends of the cylinder are provided with integrated connecting flanges.

[0010] The beneficial effects of the utility model are:

[0011] The barrel structure is provided with circumferentially distributed annular grooves and axially distributed guide grooves on the surface. The guide grooves are connected with the annular grooves to form an air duct to cooperate with an external fan to dissipate heat from the barrel. The tortuous air duct structure greatly extends the ventilation path and has a good heat dissipation effect. The annular grooves cooperate with the internal functional partitions of the barrel to form a three-section design with different widths to meet the heat dissipation requirements of different areas and improve the temperature control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front view of a new type of heat dissipation barrel of the utility model;

[0013] Figure 2 for Figure 1 Middle AA section view;

[0014] Figure 3 for Figure 1 Middle BB section view;

[0015] Figure 4 It is a planar development diagram of the cylinder 1.

[0016] In the figure: 1, cylinder; 11, feeding port; 2, first annular convex edge; 3, second annular convex edge; 31, through hole; 4, annular groove; 41, front section; 42, middle section; 43, rear section; 5, guide groove; 6, connecting flange. DETAILED DESCRIPTION

[0017] like Figure 1As shown, a new type of heat dissipation barrel described in the utility model comprises a hollow barrel 1, a hollow cavity in the barrel 1 is used to install a screw, an integrated connecting flange 6 is provided at both ends of the barrel 1, a first annular convex edge 2 and a second annular convex edge 3 are arranged at intervals along the length direction on the barrel 1, an annular groove 4 is formed between adjacent first annular convex edges 2 and between the first annular convex edges 2 and the second annular convex edges 3, a guide groove 5 is processed on the surface of the first annular convex edge 2 and the second annular convex edge 3 along the length direction of the barrel 1, the guide groove 5 is evenly distributed along the circumferential direction of the first annular convex edge 2, the guide groove 5 is connected with the annular groove 4, the depth of the guide groove 5 is less than the annular groove 4, the cross-section of the guide groove 5 is U-shaped, the center line of the guide groove 5 is at an angle to the center axis of the guide groove 5, the directions of adjacent guide grooves 5 are consistent, the width of the second annular convex edge 3 is greater than the first annular convex edge 2, a radial through hole 31 is processed on the annular convex edge 3 and penetrates into the inner cavity of the barrel 1, the through hole 31 is used to install a temperature sensor, and the through hole 31 is staggered with the guide groove 5;

[0018] The annular groove 4 has a three-section distribution structure along the length direction of the barrel 1, including a front section 41, a middle section 42, and a rear section 43. The front section 41 corresponds to the feeding section inside the barrel, the middle section 42 corresponds to the compression and melting section inside the barrel, and the rear section 43 corresponds to the extrusion section inside the barrel. The width of the annular groove 4 within the front section 41 is smaller than the width within the rear section 43, the width of the annular groove 4 within the rear section 43 is smaller than the width within the middle section 42, and the depths of the annular groove 4 within the front section 41, the middle section 42, and the rear section 43 are consistent. A feeding port 11 is provided at one end of the barrel 1 close to the front section 41.

[0019] The barrel structure is provided with circumferentially distributed annular grooves and axially distributed guide grooves on the surface. The guide grooves are connected with the annular grooves to form an air duct to cooperate with an external fan to dissipate heat from the barrel. The tortuous air duct structure greatly extends the ventilation path and has a good heat dissipation effect. The annular grooves cooperate with the internal functional partitions of the barrel to form a three-section design with different widths to meet the heat dissipation requirements of different areas and improve the temperature control accuracy.

[0020] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings:

[0021] During operation, both ends of the barrel are connected to the equipment through connecting flanges, a screw is installed in the hollow inner cavity in the middle of the barrel, an outer shell is provided on the outside of the barrel and multiple sets of fan systems are provided for segmented temperature control of the barrel in different areas, the guide grooves on the surface of the barrel are connected with the annular grooves to form an air duct, and after the air flow enters the air duct from the air inlet, it passes between each guide groove and the annular groove, takes away the heat on the surface of the barrel, and then blows out along the air outlet; the annular groove on the outside of the barrel is designed as a three-section structure, the width of the annular groove in the front section is smaller than the width in the rear section, the width of the annular groove in the rear section is smaller than the width in the middle section, the annular grooves in the front section are most densely distributed, the annular grooves in the middle section are most loosely distributed, and the front section near the feeding port corresponds to The feeding section inside the barrel, the middle section corresponds to the compression and melting section inside the barrel, and the rear section corresponds to the extrusion section inside the barrel. When the width of the annular groove is smaller and the distribution is denser, the contact area between the airflow and the barrel surface is larger, and the heat exchange efficiency is higher. Inside the barrel, the temperatures required for the feeding section, the compression and melting section, and the extrusion section are different. The feeding section requires the lowest temperature, the compression and melting section requires the highest temperature, and the extrusion section requires a temperature between the two. Therefore, when temperature control is performed, when the overall temperature of the barrel rises, the temperature difference range that needs to be adjusted in the feeding section is the largest, and the temperature difference range that needs to be adjusted in the compression and melting section is the smallest. The density of the annular grooves just corresponds to the temperature control requirements of each section inside the barrel, effectively improving the temperature control accuracy.

[0022] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of heat dissipation barrel, characterized by: The invention comprises a hollow cylinder (1), wherein a first annular convex edge (2) and a second annular convex edge (3) are arranged on the cylinder (1) at intervals along the length direction, annular grooves (4) are formed between adjacent first annular convex edges (2) and between the first annular convex edge (2) and the second annular convex edge (3), and guide grooves (5) are processed on the surfaces of the first annular convex edge (2) and the second annular convex edge (3) along the length direction of the cylinder (1), the guide grooves (5) are evenly distributed along the circumferential direction of the first annular convex edge (2), and the guide grooves (5) are connected to the annular grooves (4); The annular groove (4) is distributed in three sections along the length direction of the barrel (1), including a front section (41), a middle section (42), and a rear section (43); the width of the annular groove (4) within the front section (41) is smaller than the width within the rear section (43); the width of the annular groove (4) within the rear section (43) is smaller than the width within the middle section (42); the depths of the annular groove (4) within the front section (41), the middle section (42), and the rear section (43) are consistent; and a feeding port (11) is provided at one end of the barrel (1) close to the front section (41).

2. A new type of heat dissipation barrel according to claim 1, characterized in that: The width of the second annular convex edge (3) is greater than that of the first annular convex edge (2); a radial through hole (31) machined on the annular convex edge (3) penetrates into the inner cavity of the cylinder (1); and a temperature sensor is installed in the through hole (31).

3. A new type of heat dissipation barrel according to claim 1, characterized in that: The depth of the guide groove (5) is smaller than that of the annular groove (4).

4. A new type of heat dissipation barrel according to claim 3, characterized in that: The cross section of the guide groove (5) is U-shaped, the center line of the guide groove (5) forms an angle with the center axis of the guide groove (5), and the directions of adjacent guide grooves (5) are consistent.

5. A new type of heat dissipation barrel according to claim 1, characterized in that: Both ends of the cylinder (1) are provided with integrated connecting flanges (6).

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