Discharging end protection structure of plastic extruding machine

Abstract

The utility model relates to a discharge end protection structure of a plastic extruding machine, which comprises the plastic extruding machine, a gate device is arranged at the position, close to the discharge end, of a machine barrel of the plastic extruding machine, a protection shell is arranged outside the gate device, and the machine barrel penetrates through the middle of the protection shell; windows are formed in the upper portions of the front side wall and the rear side wall of the protective shell respectively, and protective baffles located outside the windows and used for controlling opening and closing of the windows are arranged on the front side and the rear side of the protective shell respectively. The gate device can be effectively protected, dust is prevented from polluting the gate device, meanwhile, a certain heat preservation effect is achieved, heat loss is reduced, and energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic extruding machine, especially a discharge end protection structure of plastic extruding machine. BACKGROUND

[0002] The machine cylinder of the plastic extruding machine is generally provided with a gate to control whether to discharge at the position close to the discharge end. The gate of the existing plastic extruding machine is directly exposed outside, which is easy to be polluted by dust in the workshop. In the opening and closing process of the gate, dust is easy to be brought into the machine cylinder, which leads to the pollution of materials. At the same time, a large amount of heat is also lost at the position, which increases energy consumption. SUMMARY

[0003] Therefore, the utility model discloses the purpose is to provide a simple structure, easy to implement, convenient and practical discharge end protection structure of plastic extruding machine, which can effectively protect the gate device and reduce heat loss.

[0004] The utility model discloses the following scheme realizes: a discharge end protection structure of plastic extruding machine, including the plastic extruding machine, the machine cylinder of the plastic extruding machine is close to the discharge end position gate device, the outside of gate device is equipped with the protection shell, and the machine cylinder passes through from the middle of protection shell;The upper part of the front and rear side walls of the protection shell is respectively provided with a window, and the front and rear sides of the protection shell are respectively provided with a protection baffle outside the window for controlling the opening and closing of the window.

[0005] Further, the gate device includes a support frame and a gate plate located in the middle of the support frame, the gate plate penetrates the machine cylinder along the radial direction, a communication port is formed in the upper part of the gate plate, and a hydraulic cylinder for driving the gate plate to lift is arranged above the support frame; the protection shell is wrapped outside the support frame.

[0006] Further, one side of the protection baffle is hingedly connected to the protection shell.

[0007] Further, the protection baffles on the front and rear sides are connected together through a connecting plate located beside the protection shell and are hingedly connected to the protection shell through a same rotating shaft.

[0008] Further, the rotating shaft is rotationally connected to the protection shell, the two ends of the rotating shaft are fixedly connected to the protection baffles on the front and rear sides, a rocker is fixedly connected to the rotating shaft, an air supporting rod for keeping the protection baffle in an open or closed state is arranged in the protection shell, and the upper end of the air supporting rod is hingedly connected to the inner side of the protection shell and the lower end is hingedly connected to the rocker.

[0009] Further, the protection shell and the connecting plate are provided with a clearance slot hole corresponding to the side of the rocker and the lower end of the air supporting rod.

[0010] Further, a handle is arranged outside the protection baffle.

[0011] Further, the front and rear sidewalls of the protective shell are respectively provided with a lower half-circular groove with a window below and an upward opening, and the front and rear protective baffles are respectively provided with an upper half-circular groove with a downward opening.

[0012] Compared with the prior art, the utility model has the advantages that the discharge end protective structure of the extruding machine is reasonable in design, simple in structure, easy to implement, convenient and practical, can effectively protect the gate device, avoids dust pollution of the gate device, has certain heat preservation effect, reduces heat loss, and saves energy consumption.

[0013] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by specific examples and related drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the extruding machine of the utility model embodiment;

[0015] Figure 2 is Figure 1 A-A sectional view in the utility model;

[0016] Figure 3 is Figure 2 schematic diagram of the anti-skid baffle in an open state;

[0017] Figure 4 is Figure 3 left view;

[0018] Marked numbers in the drawing: 100-extruding machine, 110-barrel, 120-gate device, 121-support frame, 122-gate plate, 123-hydraulic cylinder, 200-protective shell, 210-window, 220-protective baffle, 221-handle, 222-upper half-circular groove, 230-connection plate, 240-rotation shaft, 241-rocker, 250-air support rod, 260-giving slot hole, 270-lower half-circular groove. DETAILED DESCRIPTION

[0019] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] like Figures 1-4 As shown, a discharge end protection structure for an extruder includes an extruder 100, a gate device 120 located near the discharge end of the extruder barrel 110, and a protective shell 200 surrounding the gate device 120. The barrel passes through the middle of the protective shell. Windows 210 are respectively provided on the upper parts of the front and rear side walls of the protective shell, and protective baffles 220 located outside the windows on the front and rear sides of the protective shell are respectively provided to control the opening and closing of the windows. This invention utilizes a gate device to control the opening and closing of the discharge end of the extruder barrel. By setting up the protective shell, the gate device 120 can be effectively protected, preventing dust contamination of the gate device. It also has a certain heat insulation effect, reducing heat loss and saving energy.

[0022] In this embodiment, the gate device 120 includes a support frame 121 and a gate plate 122 located in the middle of the support frame. The gate plate penetrates the barrel radially, and a communication port is provided at the upper part of the gate plate. A hydraulic cylinder 123 for driving the gate plate to rise and fall is provided above the support frame. The protective shell covers the outside of the support frame. When the hydraulic cylinder pushes the gate plate down, the communication port on the gate plate aligns with the internal channel of the barrel, and the barrel discharges material normally. When the hydraulic cylinder pulls the gate plate up, the communication port on the gate plate exits, the internal channel of the barrel is cut off by the gate plate, and the barrel stops discharging material.

[0023] In this embodiment, the lower part of one side of the protective baffle is hinged to the protective shell. The opening and closing of the window can be controlled by swinging the protective baffle, and opening the window is beneficial for inspection and maintenance.

[0024] In this embodiment, the front and rear protective baffles are connected together by a connecting plate 230 located next to the protective shell, and are hinged to the protective shell by the same pivot 240. The front and rear protective baffles are connected together by the pivot and the connecting plate and swing synchronously.

[0025] In the embodiment, the rotating shaft 240 is in rotational cooperation with the protective shell, the rotating shaft is fixedly connected with the front and rear protective baffle at both ends, and a rocker 241 is fixedly connected to the rotating shaft, the protective shell is internally provided with an air supporting rod 250 for keeping the protective baffle in the opened or closed state, the upper end of the air supporting rod is hinged to the inner side of the protective shell, and the lower end is hinged to the rocker, the elastic force of the air supporting rod can keep the protective baffle in the opened or closed state, and the air supporting rod pulls the protective baffle, so that the limiting effect is achieved, and the angle of the opened or closed position can be limited.

[0026] In the embodiment, the protective shell and the connecting plate are provided with a clearance slot hole 260 corresponding to the side of the rocker and the lower end of the air supporting rod.

[0027] In the embodiment, in order to facilitate the operation of the protective baffle, the outer side of the protective baffle is provided with a handle 221, when a worker manually opens or closes the protective baffle, a little force is needed to compress the air supporting rod.

[0028] In the embodiment, the lower half circular grooves 270 are respectively formed in the upper part of the front and rear side walls of the protective shell and are open downward and upward, the upper half circular grooves 222 are respectively formed in the lower sides of the front and rear protective baffles and are open downward, and the upper half circular grooves and the lower half circular grooves cooperate to form a circular hole for the machine cylinder to pass through.

[0029] Unless otherwise stated, if the numerical range is disclosed in the above-mentioned any one technical scheme of the utility model, the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that the preferred numerical range is only one of the many implementable values with more obvious technical effects or representative values. Since there are too many values, it is impossible to enumerate them all, therefore, the utility model discloses only part of the values to illustrate the technical scheme of the utility model, and the above-mentioned enumerated values should not constitute a limitation on the protection scope of the utility model.

[0030] If the utility model discloses or involves mutually fixedly connected parts or structural members, unless otherwise stated, the fixed connection can be understood as being capable of being detachably fixedly connected (for example, being connected by using bolts or screws), and can also be understood as being fixedly connected and being incapable of being detached (for example, being riveted, welded), of course, the mutually fixed connection can also be replaced by an integral structure (for example, being integrally formed by using a casting process) (except for obviously being incapable of using an integral forming process).

[0031] In addition, the terms for indicating the positional relationship or shape in any one technical scheme disclosed in the above-mentioned utility model include states or shapes that are approximate, similar or close to the terms, unless otherwise stated.

[0032] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated forming process.

[0033] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the utility model and according to the technical essence of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A protective structure for the discharge end of an extruder, characterized by: The extruder comprises a barrel, a gate device near the discharge end position of the barrel, a protective shell outside the gate device, and the barrel passes through the middle of the protective shell; windows are respectively arranged on the front and rear sidewalls of the protective shell, and protective baffles are respectively arranged on the front and rear sides of the protective shell outside the windows to control the opening and closing of the windows.

2. The die face guard structure of claim 1 wherein: The gate device comprises a support frame and a gate plate in the middle of the support frame, the gate plate penetrates the barrel along the radial direction, a communication port is arranged on the upper part of the gate plate, and a hydraulic cylinder is arranged above the support frame to drive the gate plate to ascend and descend; the protective shell covers the outside of the support frame.

3. The die face guard structure of claim 1 wherein: The lower part of one side of the protective baffle is hinged to the protective shell.

4. The die face guard structure of claim 3 wherein: The protective baffles on the front and rear sides are connected together through a connecting plate beside the protective shell, and are hinged to the protective shell through a same rotating shaft.

5. The die face guard structure of claim 4 wherein: The rotating shaft is in rotating cooperation with the protective shell, the ends of the rotating shaft are fixedly connected with the protective baffles on the front and rear sides, a rocker is fixedly connected to the rotating shaft, an air supporting rod is arranged in the protective shell to keep the protective baffles in the opened or closed state, the upper end of the air supporting rod is hinged to the inner side of the protective shell, and the lower end of the air supporting rod is hinged to the rocker.

6. The die face guard structure of claim 5 wherein: The protective shell is provided with a slot hole corresponding to the side of the connecting plate, and the lower end of the rocker and the air supporting rod can extend out of the slot hole.

7. The die face guard structure of claim 1 wherein: A handle is arranged outside the protective baffle.

8. The die face guard structure of claim 1 wherein: The lower part of each of the windows is provided with an upwardly-opened semicircular groove, and the lower part of each of the protective baffles is provided with a downwardly-opened semicircular groove, and the semicircular grooves on the front and rear sides form a circular hole through which the barrel passes.

Images