Vacuumizing connecting assembly of extruder

Abstract

The utility model relates to the technical field of extruders, and discloses a vacuumizing connecting assembly of an extruder, which is used for vacuumizing a charging barrel of the extruder, and comprises a barrel body, a liquid collecting groove, a connecting rod, a connecting rod, a connecting rod and a connecting rod, the liquid collecting tank is used for collecting liquid flowing down from the inner wall of the barrel, a window is formed in the side wall, located below the liquid collecting tank, of the barrel, and an observation window is detachably arranged on the window; one end of the vacuumizing pipe is communicated with the barrel and conveys liquid in the liquid collecting tank, and the other end of the vacuumizing pipe is communicated with a vacuum generator; the upper end cover is arranged on the upper opening of the cylinder body in a sealing and covering manner; and the mounting seat is arranged on the periphery of the lower opening and is connected with the cylinder body. According to the vacuumizing connecting assembly of the extruder, the interior is convenient to clean, and the processing quality of the extruder is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to a vacuum connection component of an extruder. Background Art

[0002] The extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the materials and form them through the die. By vacuuming the extruder, bubbles and moisture in the material can be removed, the melting of the plastic material can be accelerated, and material reactions can be avoided. However, when the extruder is vacuumed, the vacuum pump is directly connected to the barrel of the extruder through a pipeline. The small molecules generated by the high temperature and shearing action in the barrel of the extruder will enter the pipeline through the extruder barrel. Since the temperature of the pipeline is much lower than the temperature inside the barrel, the small molecules will liquefy into droplets on the inner wall of the pipeline, accumulate in the pipeline, and flow back into the barrel, causing product contamination and affecting product quality. It is also inconvenient to clean the inside of the pipeline. Utility Model Content

[0003] The utility model aims to provide a vacuum connection assembly for an extruder, which is convenient for internal cleaning and improves the processing quality of the extruder.

[0004] In order to achieve the above object, the utility model provides a vacuum connection assembly for an extruder, wherein the vacuum connection assembly is used to vacuum the barrel of the extruder, and comprises:

[0005] The cylinder comprises an upper opening and a lower opening, wherein a liquid collecting groove is arranged around the middle of the inner wall of the cylinder, and the liquid collecting groove is used to collect liquid flowing down the inner wall of the cylinder;

[0006] A vacuum tube, one end of which is connected to the cylinder and transports the liquid in the liquid collecting tank, and the other end of which is connected to the vacuum generator;

[0007] An upper end cover, a sealing cover is arranged on the upper opening of the cylinder; and

[0008] The mounting seat is arranged on the outer periphery of the lower opening and is connected to the cylinder.

[0009] In one embodiment, a bearing platform is provided on the outer periphery of the upper opening, the bearing platform is connected to the cylinder, and the upper end cover is provided on the bearing platform.

[0010] In one embodiment, a sealing ring is provided between the supporting platform and the upper end cover.

[0011] In one embodiment, one end of the upper end cover is connected to the supporting platform via a hinge shaft, and the other end of the upper end cover is provided with a handle.

[0012] In one embodiment, the cylinder body includes an upper cylinder portion and a lower cylinder portion disposed below the upper cylinder portion, and an inner diameter of the upper cylinder portion is greater than an outer diameter of the lower cylinder portion.

[0013] In one embodiment, the liquid collecting trough is horizontally arranged between the upper cylinder portion and the lower cylinder portion, and the width of the liquid collecting trough is 2-5 mm.

[0014] In one embodiment, the vacuum tube is arranged on the side wall of the upper cylinder.

[0015] In one embodiment, it further comprises a window, wherein the window is arranged on the side wall of the cylinder below the liquid collecting tank, and the window is detachably provided with an observation window.

[0016] The utility model provides a vacuum connection assembly for an extruder, which has the following beneficial effects compared with the prior art:

[0017] A liquid collecting trough is arranged around the inner wall of the cylinder, and the liquid collecting trough is used to collect liquid flowing down the inner wall of the cylinder, thereby reducing liquid contamination of the material in the barrel and improving the processing quality of the extruder; an upper end cover sealing cover is arranged on the upper opening of the cylinder, and opening the upper end cover facilitates cleaning of the inside of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A first stereoscopic structural schematic diagram of a vacuum connection assembly of an extruder provided in an embodiment of the utility model.

[0019] Figure 2 A second stereoscopic structural schematic diagram of the vacuum connection assembly of the extruder provided in an embodiment of the utility model.

[0020] Figure 3 A schematic bottom view of the structure of the vacuum connection assembly of the extruder provided in an embodiment of the utility model.

[0021] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along direction A.

[0022] Figure 5 A schematic diagram of the three-dimensional structure of the vacuum connection assembly of the extruder provided in an embodiment of the utility model after the upper end cover is removed.

[0023] In the figure: 1, cylinder; 1a, upper cylinder; 1b, lower cylinder; 11, upper opening; 12, lower opening; 13, window; 14, observation window; 15, support platform; 16, sealing ring; 2, vacuum tube; 3, upper end cover; 31, hinge shaft; 32, handle; 4, mounting seat; 5, liquid collecting tank. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0025] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.

[0026] like Figure 1-5 As shown, the vacuum connection assembly of the extruder of the embodiment of the utility model is used to vacuum the barrel of the extruder, and includes a barrel 1, a vacuum tube 2, an upper end cover 3 and a mounting seat 4. The barrel 1 includes an upper opening 11 and a lower opening 12, and a liquid collecting tank 5 is arranged around the middle of the inner wall of the barrel 1, and the liquid collecting tank 5 is used to collect the liquid flowing down the inner wall of the barrel 1; one end of the vacuum tube 2 is connected to the barrel 1 and transports the liquid in the liquid collecting tank 5, and the other end is connected to the vacuum generator; the upper end cover 3 is a sealing cover provided on the upper opening 11 of the barrel 1; the mounting seat 4 is provided on the outer periphery of the lower opening 12 and is connected to the barrel 1.

[0027] When in use, the mounting base 4 is installed on the barrel of the extruder by passing the bolts through the mounting holes on the mounting base 4, and the barrel is kept connected to the barrel 1; the vacuum tube 2 is connected to the vacuum generator, and the vacuum generator is started to evacuate the barrel of the extruder, and during the vacuuming process, small molecules will liquefy into droplets on the inner wall of the barrel 1, and the liquid will flow downward and be collected by the liquid collecting tank 5, and finally discharged from the vacuum tube 2.

[0028] Based on the above arrangement, the liquid collecting tank 5 is used to collect the liquid flowing down the inner wall of the barrel 1, thereby reducing the liquid contamination of the material in the barrel and improving the processing quality of the extruder; the upper end cover 3 is sealed on the upper opening 11 of the barrel 1, and opening the upper end cover 3 facilitates cleaning of the interior of the barrel 1.

[0029] like Figure 1 and 5As shown, in one embodiment, a bearing platform 15 is provided on the outer periphery of the upper opening 11, the bearing platform 15 is connected to the cylinder 1, and the upper end cover 3 is arranged on the bearing platform 15. The function of the bearing platform 15 is to keep the upper end cover 3 stably installed.

[0030] Specifically, a sealing ring 16 is provided between the bearing platform 15 and the upper end cover 3. The sealing ring 16 can keep the upper end cover 3 on the bearing platform 15 with a sealing effect, and keep the cylinder 1 from leaking during the vacuuming process.

[0031] Further, one end of the upper end cover 3 is connected to the bearing platform 15 through a hinge shaft 31, and the other end of the upper end cover 3 is provided with a handle 32. By holding the handle 32, the upper end cover 3 can be rotated to open, so as to facilitate cleaning of the inner wall of the cylinder 1 and the liquid collecting tank 5.

[0032] like Figure 4 As shown, in one embodiment, the cylinder 1 includes an upper cylinder portion 1a and a lower cylinder portion 1b disposed below the upper cylinder portion 1a, and the inner diameter of the upper cylinder portion 1a is greater than the outer diameter of the lower cylinder portion 1b. The larger size of the upper cylinder portion 1a is conducive to collecting more droplets.

[0033] In one implementation, the liquid collecting tank 5 is horizontally disposed between the upper barrel 1a and the lower barrel 1b. The liquid collecting tank 5 can collect the liquid dripping from the upper barrel 1a, reduce the contamination of the material in the barrel of the extruder by small molecules, and improve the quality of the extruder processed product. Specifically, the width of the liquid collecting tank is 2-5 mm.

[0034] Specifically, the vacuum tube 2 is disposed on the side wall of the upper tube 1a. The vacuum tube 2 can remove the air in the upper tube 1a.

[0035] In one embodiment, the vacuum connection assembly of the extruder also includes a window 13, which is arranged on the side wall of the barrel 1 below the liquid collecting tank 5. The window 13 is detachably provided with an observation window 14, through which it can be checked whether the droplets in the liquid collecting tank 5 in the barrel 1 overflow.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A vacuum connection assembly for an extruder, the vacuum connection assembly is used to vacuum the barrel of the extruder, characterized in that: include: The cylinder comprises an upper opening and a lower opening, wherein a liquid collecting groove is arranged around the middle of the inner wall of the cylinder, and the liquid collecting groove is used to collect liquid flowing down the inner wall of the cylinder; A vacuum tube, one end of which is connected to the cylinder and transports the liquid in the liquid collecting tank, and the other end of which is connected to the vacuum generator; An upper end cover, a sealing cover is arranged on the upper opening of the cylinder; and The mounting seat is arranged on the outer periphery of the lower opening and is connected to the cylinder.

2. The vacuum connection assembly of the extruder according to claim 1, characterized in that: A bearing platform is disposed on the outer periphery of the upper opening, the bearing platform is connected to the cylinder, and the upper end cover is disposed on the bearing platform.

3. The vacuum connection assembly of the extruder according to claim 2, characterized in that: A sealing ring is arranged between the bearing platform and the upper end cover.

4. The vacuum connection assembly of the extruder according to claim 2, characterized in that: One end of the upper end cover is connected to the bearing platform through a hinge shaft, and the other end of the upper end cover is provided with a handle.

5. The vacuum connection assembly of the extruder according to claim 1, characterized in that: The cylinder body includes an upper cylinder portion and a lower cylinder portion arranged below the upper cylinder portion, and the inner diameter of the upper cylinder portion is greater than the outer diameter of the lower cylinder portion.

6. The vacuum connection assembly of the extruder according to claim 5, characterized in that: The liquid collecting groove is horizontally arranged between the upper cylinder part and the lower cylinder part, and the width of the liquid collecting groove is 2-5 mm.

7. The vacuum connection assembly of the extruder according to claim 5, characterized in that: The vacuum tube is arranged on the side wall of the upper cylinder and is communicated with the liquid collecting tank.

8. The vacuum connection assembly of the extruder according to claim 1, characterized in that: It also includes a window, which is arranged on the side wall of the cylinder below the liquid collecting tank, and the window is detachably provided with an observation window.

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