An adaptive support device for an electromechanical pre-plasticizing device of an injection molding machine

Abstract

The utility model discloses a kind of self-adapting support devices for injection molding machine electric pre-plastic device, including injection station backplate, injection station backplate is connected with reduction gearbox, reduction gearbox is fixedly connected with motor, the below of injection station backplate is fixed with injection line rail slider, pressure sensor is equipped between injection line rail slider and injection station backplate, injection line rail slider is slidably arranged on injection line rail, injection line rail is fixedly connected with line rail support, the side surface of support device is installed on line rail support, its top surface is fixedly connected with reduction gearbox and motor;The relative position of upper adjusting block and lower adjusting block is adjusted to adjust the support height of reduction gearbox and motor, it is helpful to prolong the service life of slider and adjust conveniently, support device is installed on line rail support, support seat length only needs to be greater than injection stroke, part length is smaller, the problem that overturning moment increases and gear wears in rotation caused by the structure of electric pre-plastic device that reduction gearbox and motor are formed is improved, prolongs the service life of reduction gearbox long.

Description

Technical Field

[0001] This utility model relates to an adaptive support device, and more particularly to an adaptive support device for an injection molding electromechanical pre-plasticizing device. Background Technology

[0002] When an injection molding machine uses electro-pre-plasticizing for material storage, an electric motor is required to drive the screw after being reduced in speed by a gearbox. The motor is fixed to the gearbox, which is in turn fixed to the rear plate of the injection unit. For smaller injection units, the motor and gearbox structures are relatively long, shifting the center of gravity of the entire pre-plasticizing assembly rearward, increasing the overturning moment, increasing the load on the pre-plasticizing assembly's slider, and reducing slider life. After the injection unit has been in operation for a period of time, the mechanical fixation between the injection unit's rear plate and the gearbox and motor may loosen, causing the gearbox and motor to tilt. This can create gaps between the gearbox and the coupling, leading to vibration of the gearbox and motor. On the one hand, this causes wear on the gears inside the gearbox, reducing its lifespan; on the other hand, it affects the coaxiality of the screw and coupling, resulting in black spots on the products and increasing the product defect rate. Utility Model Content

[0003] This invention provides an adaptive support device for an injection molding electromechanical pre-plasticizing device to overcome the defect in the prior art where the motor fixed on the gearbox will tilt after long-term use, resulting in a reduction in the service life of the gearbox.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses an adaptive support device for an electromechanical pre-plasticizing device for injection molding machines, including a rear plate of the injection stage, a gearbox connected to the rear plate of the injection stage, the gearbox being fixedly connected to a motor, an injection guide slider fixed below the rear plate of the injection stage, a pressure sensor being provided between the injection guide slider and the rear plate of the injection stage, the injection guide slider being slidably mounted on the injection guide, the injection guide being fixedly connected to a guide support, the side of the support device being mounted on the guide support, and its top surface being fixedly connected to the gearbox and the motor.

[0006] Furthermore, the support device includes a support plate, a steel strip is fixedly mounted on the upper surface of the support plate, a lower adjusting block is mounted above the steel strip, the upper end face of the lower adjusting block is an inclined surface, the lower end face of the upper adjusting block is an inclined surface, the upper adjusting block is slidably mounted on the lower adjusting block through the inclined surface, the fixed end of the oil cylinder is fixedly connected to the lower adjusting block, and its piston rod is fixedly connected to the upper adjusting block.

[0007] Furthermore, a pressure sensor is used to monitor the slider support force of the injection linear guide slider.

[0008] Furthermore, the extension and retraction of the piston rod of the hydraulic cylinder causes the upper and lower adjusting blocks to move relative to each other, resulting in a change in the support height of the gearbox and the motor.

[0009] Furthermore, limit screws are provided at both ends of the steel belt to limit the movement of the lower adjusting block.

[0010] Furthermore, the side of the support plate is fixed to the rail support by fixing screws and fixing pins.

[0011] The beneficial effects achieved by this utility model are as follows: by adjusting the relative positions of the upper and lower adjusting blocks, the support height of the gearbox and motor can be adjusted, which allows for real-time adjustment of the slider support force of the pre-plasticizing component, helps extend the slider life, is easy to adjust, and has good adaptability. The support device is installed on the rail support, and the length of the support seat only needs to be greater than the injection stroke, resulting in a smaller part length. This improves the problem of increased overturning torque and gear wear during rotation caused by the long structure of the electric pre-plasticizing device composed of the gearbox and motor. The structure is simple, the operation is stable and reliable, and the gearbox has a long service life. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the support device of this utility model.

[0015] In the diagram: 1. Rear plate of injection station; 2. Gearbox; 3. Motor; 4. Support device; 4.1. Upper adjusting block; 4.2. Hydraulic cylinder; 4.3. Lower adjusting block; 4.4. Steel belt; 4.5. Limit screw; 4.6. Support plate; 4.7. Support plate fixing screw; 4.8. Support plate fixing pin; 5. Injection linear guide slider; 6. Pressure sensor; 7. Injection linear guide; 8. Linear guide support. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Example 1:

[0018] like Figure 1-2As shown, an adaptive support device for an injection molding electromechanical pre-plasticizing device includes a rear plate 1 of the injection stage, a reduction gearbox 2 connected to the rear plate 1, the reduction gearbox 2 being fixedly connected to a motor 3, an injection guide slider 5 fixed below the rear plate 1, a pressure sensor 6 provided between the injection guide slider 5 and the rear plate 1 of the injection stage to detect changes in force on the slider, the injection guide slider 5 being slidably mounted on an injection guide 7, the injection guide 7 being fixedly connected to a guide support 8, the side of the support device 4 being mounted on the guide support 8, and its top surface being fixedly connected to the reduction gearbox 2 and the motor 3.

[0019] The upper adjusting block 4.1 of the support device 4 is fixedly connected to the reduction gearbox 2 and the motor 3. The fixed end of the hydraulic cylinder 4.2 is fixedly connected to the lower adjusting block 4.3. The piston rod end of the hydraulic cylinder 4.2 is fixedly connected to the upper adjusting block 4.1. The lower end face of the upper adjusting block 4.1 is an inclined surface, and the upper end face of the lower adjusting block 4.3 is an inclined surface. The upper adjusting block 4.1 is slidably mounted on the lower adjusting block 4.3 through the inclined surface. When the hydraulic stroke of the hydraulic cylinder 4.2 is changed, the upper adjusting block 4.1 and the lower adjusting block 4.3 move relative to each other, and the total height of the upper adjusting block 4.1 and the lower adjusting block 4.3 will also be adjusted accordingly. The lower end face of the lower adjusting block 4.3 is flat and it is slidably mounted on the steel strip 4.4. The steel strip 4.4 is fixed on the support plate 4.6. Limiting screws 4.5 are provided at both ends of the steel strip 4.4 to limit the movement stroke of the lower adjusting block 4.3. This stroke must be greater than the injection stroke of the injection seat. The side of the support plate 4.6 is fixed on the rail support 8 by fixing screws 4.7 and fixing pins 4.8.

[0020] During operation, the hydraulic cylinder 4.2 is first given an initial position. The pressure sensor 6 monitors the slider support force of the injection linear guide slider 5. The position of the piston rod of the hydraulic cylinder 4.2 is gradually adjusted. The positions of the upper adjusting block 4.1 and the lower adjusting block 4.3 will also move relative to each other. The support height of the gearbox 2 and the motor 3 will also change accordingly. When the force value of the injection linear guide slider 5 is at a low level, the adjustment is stopped. This can ensure that the force value of the injection linear guide slider 5 is at a low level during operation, thus extending the service life of the injection linear guide slider 5.

[0021] The support device 4 can support the pre-plasticized components, which greatly eliminates the problems of gear wear and screw coaxiality caused by the long length of the gearbox 2 and the motor 3. The structure is simple and reliable, and extends the service life of the gearbox 2 and the motor 3.

[0022] The support plate 4.6 is installed on the rail support 8. The movable stroke of its upper end only needs to be greater than the injection stroke. There is no need to consider the movement stroke of the entire injection seat. Compared with the installation on the machine body, the part is shorter and the structure is more compact.

[0023] It should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The terminology used in the description of this application is only for describing specific embodiments and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings indicate similar items, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0024] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

Claims

1. An adaptive support device for an electromechanical pre-plasticizing unit in injection molding, characterized in that, The device includes a rear plate of the injection stage, a gearbox connected to the rear plate of the injection stage, a gearbox fixedly connected to the motor, an injection guide slider fixed below the rear plate of the injection stage, a pressure sensor between the injection guide slider and the rear plate of the injection stage, the injection guide slider slidingly mounted on the injection guide, the injection guide fixedly connected to the guide support, the side of the support device mounted on the guide support, and its top surface fixedly connected to the gearbox and the motor. The support device includes a support plate, a steel strip is fixedly mounted on the upper surface of the support plate, a lower adjusting block is mounted above the steel strip, the upper end face of the lower adjusting block is inclined, the lower end face of the upper adjusting block is inclined, the upper adjusting block is slidably mounted on the lower adjusting block through the inclined surface, the fixed end of the oil cylinder is fixedly connected to the lower adjusting block, and its piston rod is fixedly connected to the upper adjusting block.

2. The adaptive support device for an injection molding electromechanical pre-plasticizing device according to claim 1, characterized in that, The pressure sensor is used to monitor the slider support force value of the injection linear guide slider.

3. The adaptive support device for an injection molding electromechanical pre-plasticizing device according to claim 1, characterized in that, The extension and retraction of the piston rod of the hydraulic cylinder causes the upper and lower adjusting blocks to move relative to each other, resulting in a change in the support height of the gearbox and the motor.

4. The adaptive support device for an injection molding electromechanical pre-plasticizing device according to claim 3, characterized in that, The steel strip is equipped with limit screws at both ends to limit the movement of the lower adjusting block.

5. The adaptive support device for an injection molding electromechanical pre-plasticizing device according to claim 1, characterized in that, The side of the support plate is fixed to the rail support by fixing screws and fixing pins.

Images