A safety shield for an injection molding machine

Abstract

The utility model provides a kind of component for the safety protection of injection molding machine, it is related to injection molding field.The component for the safety protection of injection molding machine, including injection pipe, the left end of injection pipe is provided with injection head, the outer surface of injection pipe is fixedly connected with protective cover, the front of protective cover is equipped with window, the inside of window is clamped with observation board, the right side of observation board is fixedly connected with pull apart piece, the right side of protective cover is equipped with with the sliding hole that window inside is connected with in communication.The component for the safety protection of injection molding machine, by the combination between window, observation board, sliding hole, pull apart piece, sealing strip, sealing groove, guide slot, telescopic piece, recess and sliding structure, reach to facilitate the opening and closing of protective component, to easily clean extrusion port, solve the current injection molding machine use's safety protection component not easy to open and close, to affect the problem of cleaning extrusion port of injection molding machine.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, specifically to a safety protection component for injection molding machines. Background Technology

[0002] Injection molding machines, also known as injection molding machines or injection presses, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity. The function of the injection system: The injection system is one of the most important components of an injection molding machine, and generally comes in three main forms: plunger type, screw type, and screw pre-plasticizing plunger injection type. The screw type is the most widely used. Its function is to heat and plasticize a certain amount of plastic within a specified time during one cycle of the injection molding machine, and then inject the molten plastic into the mold cavity through the screw under certain pressure and speed. After injection, the molten material injected into the mold cavity is kept in a fixed shape. The composition of the injection system: The injection system consists of a plasticizing device and a power transmission device. The plasticizing device of a screw-type injection molding machine mainly consists of a feeding device, barrel, screw, glue-coating assembly, and nozzle. The power transmission device includes an injection cylinder, an injection seat moving cylinder, and a screw drive device (melt motor). The working principle of an injection molding machine is similar to that of a syringe. It uses the thrust of a screw (or plunger) to inject pre-plasticized molten plastic (i.e., viscous flow state) into a closed mold cavity, and obtains the product after solidification and shaping.

[0003] Injection molding is a cyclical process. Each cycle mainly includes: metered feeding—melting and plasticizing—pressure injection—mold filling and cooling—mold opening and part removal. After the plastic part is removed, the mold is closed again to start the next cycle. Injection molding machine operation includes three aspects: control keyboard operation, electrical control system operation, and hydraulic system operation. This involves selecting injection process actions, feeding actions, injection pressure, injection speed, and ejection type; monitoring the temperature of each section of the barrel; and adjusting the injection pressure and back pressure.

[0004] The general molding process of a screw injection molding machine is as follows: First, granular or powdered plastic is added to the barrel. The plastic is molten through the rotation of the screw and the heating of the barrel's outer wall. Then, the machine closes the mold and moves the injection unit forward, bringing the nozzle close to the mold's sprue. Next, pressurized oil is introduced into the injection cylinder, propelling the screw forward and injecting the molten material into the cooler, closed mold at high pressure and speed. After a certain time and pressure holding (also known as holding pressure) and cooling, the material solidifies and is then removed from the mold. (The purpose of holding pressure is to prevent backflow of molten material in the mold cavity, replenish material into the cavity, and ensure the product has a certain density and dimensional tolerance.) The basic requirements of injection molding are plasticization, injection, and molding. Plasticization is a prerequisite for achieving and ensuring the quality of the molded product, while injection must ensure sufficient pressure and speed to meet molding requirements. Simultaneously, due to the high injection pressure, a correspondingly high pressure is generated in the mold cavity (the average pressure in the mold cavity is generally between 20-45 MPa), therefore, a sufficiently large clamping force is necessary. Therefore, the injection unit and mold clamping unit are key components of an injection molding machine. Injection molding machines have the ability to mold complex, precisely dimensional, or dense plastic products with metal inserts in a single operation, and are widely used in national defense, machinery and electronics, automotive, transportation, building materials, packaging, agriculture, education and healthcare, and various aspects of daily life. With the rapid development of the plastics industry, injection molding machines occupy an important position in terms of both quantity and variety.

[0005] The evaluation of plastic products mainly involves three aspects: first, appearance quality, including integrity, color, and gloss; second, the accuracy of dimensions and relative positions; and third, physical, chemical, and electrical properties appropriate for the intended use. These quality requirements vary depending on the application of the product. Defects in the products primarily stem from issues with mold design, manufacturing precision, and wear. Currently, the safety guards used in injection molding machines are difficult to open and close, thus affecting the cleaning of the extrusion nozzle. Utility Model Content

[0006] The purpose of this invention is to provide a safety protection component for injection molding machines, which solves the problem that the safety protection components currently used in injection molding machines are not easy to open and close, thus affecting the cleaning of the injection molding machine extrusion outlet.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a safety protection component for an injection molding machine, comprising an injection tube, an injection head at the left end of the injection tube, a protective cover fixedly connected to the outer surface of the injection tube, a window on the front of the protective cover, an observation plate snapped into the inside of the window, a pull-out component fixedly connected to the right side of the observation plate, a sliding hole communicating with the inside of the window on the right side of the protective cover, a guide groove on the inner top wall of the window, a sliding structure slidably connected inside the guide groove, and a lower surface of the sliding structure fixedly connected to the top of the observation plate. When cleaning the end of the injection head is required, the pull-out component is pulled to the right, causing the observation plate to move to the right through the sliding hole. During the movement, the observation plate causes the sliding structure to slide to the right, simultaneously stretching the telescopic component to clean the injection head through the window. After cleaning, the pull-out component is released, causing the telescopic component to retract and reset the sliding structure. The sliding structure then causes the observation plate to move to the left and seal the window.

[0009] Furthermore, a groove is formed on the left inner wall of the guide groove, and a telescopic component is fixedly connected to the left inner wall of the groove.

[0010] Furthermore, the right end of the telescopic component is fixedly connected to the left side of the sliding structure.

[0011] Furthermore, a sealing groove is provided on the inner left side of the window, and a sealing strip is engaged inside the sealing groove.

[0012] Furthermore, the right side of the sealing strip is fixedly connected to the left side of the observation plate.

[0013] Furthermore, the surface of the pull-out member is movably connected to the interior of the sliding hole.

[0014] Furthermore, the observation panel is designed to be transparent.

[0015] This utility model provides a safety protection component for injection molding machines. It has the following beneficial effects:

[0016] This safety protection component for injection molding machines, through the combination of windows, observation plates, sliding holes, pull-out parts, sealing strips, sealing grooves, guide grooves, telescopic parts, grooves, and sliding structures, facilitates the opening and closing of the protective component, thereby making it easy to clean the extrusion port. This solves the problem that the safety protection components currently used in injection molding machines are not easy to open and close, thus affecting the cleaning of the injection molding machine's extrusion port. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged view of the local structure at point A in the middle.

[0019] Among them, 1 is the injection tube, 2 is the injection head, 3 is the protective cover, 4 is the window, 5 is the observation plate, 6 is the sliding hole, 7 is the pull-out part, 8 is the sealing strip, 9 is the sealing groove, 10 is the guide groove, 11 is the telescopic part, 12 is the groove, and 13 is the sliding structure. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figure 1-2 As shown, this utility model provides a safety protection component for an injection molding machine, including an injection tube 1, an injection head 2 at the left end of the injection tube 1, and a protective cover 3 fixedly connected to the outer surface of the injection tube 1.

[0025] In the first embodiment of this utility model, the protective cover 3 has a window 4 on its front side, a sealing groove 9 on the left inner wall of the window 4, a sealing strip 8 is snapped into the sealing groove 9, the right side of the sealing strip 8 is fixedly connected to the left side of the observation plate 5, the observation plate 5 is snapped into the window 4, the observation plate 5 is designed to be transparent, a pull-out piece 7 is fixedly connected to the right side of the observation plate 5, and a sliding hole 6 communicating with the inside of the window 4 is opened on the right side of the protective cover 3, the surface of the pull-out piece 7 is movably connected to the inside of the sliding hole 6.

[0026] In the second embodiment of this utility model, a guide groove 10 is provided on the inner top wall of window 4. A sliding structure 13 is slidably connected inside the guide groove 10. A groove 12 is provided on the left inner wall of the guide groove 10. A telescopic member 11 is fixedly connected to the left inner wall of the groove 12. The right end of the telescopic member 11 is fixedly connected to the left side of the sliding structure 13. The lower surface of the sliding structure 13 is fixedly connected to the top of the observation plate 5.

[0027] Working principle: When it is necessary to clean the end of the injection head 2, pull the pull-out piece 7 to the right. The pull-out piece 7 will drive the observation plate 5 to move to the right through the sliding hole 6. During the movement, the observation plate 5 will drive the sliding structure 13 to slide to the right, and at the same time stretch the telescopic piece 11. The injection head 2 will be cleaned through the window 4. After cleaning, the pull-out piece 7 will be released. At this time, the telescopic piece 11 will retract and drive the sliding structure 13 to reset. The sliding structure 13 will drive the observation plate 5 to move to the left and seal the window 4.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety protection component for an injection molding machine, comprising an injection tube (1), characterized in that: An injection head (2) is provided at the left end of the injection tube (1). A protective cover (3) is fixedly connected to the outer surface of the injection tube (1). A window (4) is opened on the front of the protective cover (3). An observation plate (5) is snapped into the inside of the window (4). A pull-out piece (7) is fixedly connected to the right side of the observation plate (5). A sliding hole (6) communicating with the inside of the window (4) is opened on the right side of the protective cover (3). A guide groove (10) is opened on the inner top wall of the window (4). A sliding structure (13) is slidably connected inside the guide groove (10). The lower surface of the sliding structure (13) is fixedly connected to the top of the observation plate (5).

2. A safety protection component for an injection molding machine according to claim 1, characterized in that: The guide groove (10) has a groove (12) on its left inner wall, and a telescopic member (11) is fixedly connected to the left inner wall of the groove (12).

3. A safety protection component for an injection molding machine according to claim 2, characterized in that: The right end of the telescopic component (11) is fixedly connected to the left side of the sliding structure (13).

4. A safety protection component for an injection molding machine according to claim 1, characterized in that: A sealing groove (9) is provided on the left inner wall of the window (4), and a sealing strip (8) is snapped into the inside of the sealing groove (9).

5. A safety protection component for an injection molding machine according to claim 4, characterized in that: The right side of the sealing strip (8) is fixedly connected to the left side of the observation plate (5).

6. A safety protection component for an injection molding machine according to claim 1, characterized in that: The surface of the pull-out member (7) is movably connected to the interior of the sliding hole (6).

7. A safety protection component for an injection molding machine according to claim 1, characterized in that: The observation panel (5) is designed to be transparent.

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