Automatic metering mechanism for thermoplastic elastomer production

Abstract

The utility model discloses an automatic metering mechanism for thermoplastic elastomer production, which comprises a rack, a plurality of raw material bins arranged on the rack, and a metering hopper capable of transferring and conveying among the raw material bins, each raw material bin position is provided with a raw material bin, a discharging device, a metering and weighing device, a conveying device and a control module, the metering and weighing device is embedded in the conveying device, the upper end face of the metering and weighing device is flush with the upper end face of the conveying device, and the metering hopper is moved to the metering and weighing device of one raw material bin position through the conveying device. The discharging device is started to discharge raw materials in the raw material bin into the metering hopper, the metering and weighing device is used for detecting that the weight increase change of the metering hopper reaches a set value, and the control module controls the discharging device to stop according to the condition that the weight change of the metering and weighing device reaches the set value. And the metering hopper is moved to the metering and weighing device of the next raw material bin through the conveying device to quantitatively add the next raw material.

Description

Technical Field

[0001] The utility model relates to a thermoplastic elastomer production device, in particular to an automatic metering mechanism for the production of thermoplastic elastomer. Background Art

[0002] Thermoplastic elastomers, also known as artificial rubber or synthetic rubber. In the thermoplastic elastomer manufacturing industry, the production process requires various granular and powdered raw materials, such as ethylene propylene diene monomer (EPDM), polyethylene (PE), polypropylene (PP), calcium carbonate (CaCO3), and additives, to be mixed according to the formula ratio. The various raw materials with good proportions are then mixed through high-speed stirring, and finally the thermoplastic elastomer is obtained after passing through a twin-screw extruder, a pelletizer, a dehydrator, a vibrating screen, and homogenization. However, in the current production of thermoplastic elastomers, the raw material separation step is a manual operation. The operator takes out the raw materials in batches from the container containing the raw materials, and weighs the taken out raw materials in real time until the taken out amount reaches the required requirement. The operation process is cumbersome, and the production efficiency of the entire process is therefore affected. Utility Model Content

[0003] In view of the above problems, the utility model provides an automatic metering mechanism for the production of thermoplastic elastomers.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An automatic metering mechanism for the production of thermoplastic elastomers comprises a frame, the frame being provided with a plurality of raw material bins, and a metering hopper capable of being transferred and transported between the raw material bins, wherein each raw material bin is provided with a raw material bin, a discharging device, a metering weighing device, a conveying device and a control module, the metering weighing device being embedded in the conveying device and its upper end face being flush with the upper end face of the conveying device, the metering hopper being moved to the metering weighing device of a raw material bin via the conveying device, the discharging device being started to discharge the raw materials in the raw material bin into the metering hopper, the metering weighing device being used to detect when the weight increase in the metering weighing device reaches a set value, the control module controlling the discharging device to stop working according to the weight change on the metering weighing device reaching the set value, the metering hopper being moved to the metering weighing device of the next raw material bin via the conveying device for quantitative addition of the next raw material.

[0006] Furthermore, the discharging device is a screw conveyor, the feed port of the screw conveyor is connected to the bottom of the raw material bin, the discharge port of the screw conveyor extends to the top of the metering and weighing device, and a drive motor is provided at one end of the screw conveyor, and the control module controls the start and stop of the drive motor.

[0007] Furthermore, the conveying device is a conveying roller group.

[0008] Furthermore, the measuring and weighing device is provided with a weighing sensor for weighing the weight of the measuring hopper in real time.

[0009] Furthermore, the multiple raw material bins are arranged in a straight line, and each raw material bin is provided with a proximity sensor switch, which is used to detect whether the metering hopper is moved into place.

[0010] From the above description of the structure of the present invention, it can be seen that the metering hopper is moved to the metering weighing device of a raw material bin through the conveying device, and the discharging device is started to discharge the raw materials in the raw material bin into the metering hopper. The metering weighing device is used to detect the weight increase of the metering hopper to reach the set value. The control module controls the stop of the discharging device according to the weight change on the metering weighing device reaching the set value. The metering hopper is moved to the metering weighing device of the next raw material bin through the conveying device to carry out the quantitative addition of the next raw material. The present invention can quantitatively take multiple raw materials at the same time, automatically measure the taken materials of multiple raw materials, and pour the raw materials into the reactor at one time after taking them, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 This is a schematic structural diagram of an automatic metering mechanism for producing thermoplastic elastomers according to the present invention;

[0013] Figure 2 This is a side structural diagram of another embodiment of the present invention. DETAILED DESCRIPTION

[0014] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0017] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0018] Example

[0019] As attached Figure 1 As shown in or 2, the utility model includes a frame 1, which is provided with multiple raw material bins 2, and also includes a metering hopper 3 that can be transferred and transported between each raw material bin 2, each raw material bin 2 is respectively provided with a raw material bin 21, a discharging device 22, a metering weighing device 23, a conveying device 24 and a control module 25, the metering weighing device 23 is embedded in the conveying device 24 and its upper end face is flush with the upper end face of the conveying device 24, the metering hopper 3 is moved to the metering weighing device 23 of a raw material bin 2 through the conveying device 24, the discharging device 22 is started to discharge the raw material in the raw material bin 21 into the metering hopper 3, the metering weighing device 23 is used to detect that the weight increase of the metering hopper 3 reaches a set value, the control module 25 controls the discharging device 22 to stop working according to the weight change on the metering weighing device 23 reaching the set value, the metering hopper 3 is moved to the metering weighing device 23 of the next raw material bin 2 through the conveying device 24, and the next raw material is quantitatively added.

[0020] Preferably, the discharging device 22 is a screw conveyor, the feed port 221 of the screw conveyor is connected to the bottom of the raw material bin 21, the discharge port 222 of the screw conveyor extends to the top of the metering weighing device 23, and a drive motor 223 is provided at one end of the screw conveyor, and the control module 25 controls the start and stop of the drive motor 223.

[0021] Preferably, the conveying device 24 is a conveying roller set.

[0022] Preferably, the measuring and weighing device 23 is provided with a weighing sensor for weighing the weight of the measuring hopper in real time.

[0023] Preferably, the plurality of raw material bins 2 are arranged in a straight line, and each raw material bin 2 is provided with a proximity sensing switch, which is used to detect whether the metering hopper is moved into place.

[0024] When the present invention is in use, the metering hopper 3 is moved to the metering weighing device 23 of a raw material bin 2 through the conveying device 24, and the discharging device 22 is started to discharge the raw materials in the raw material bin 21 into the metering hopper. The metering weighing device 23 is used to detect that the weight increase of the metering hopper reaches a set value. The control module 25 controls the stop of the discharging device 22 according to the weight change on the metering weighing device 23 reaching the set value. The metering hopper is moved to the metering weighing device 23 of the next raw material bin 2 through the conveying device 24 to carry out the quantitative addition of the next raw material. The adding process is the same as the above. The present invention can quantitatively take multiple raw materials at the same time, automatically measure the taken materials of multiple raw materials, and pour the raw materials into the reactor at one time after taking them, thereby improving production efficiency.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic metering mechanism for thermoplastic elastomer production, characterized by: It includes a frame, which is provided with multiple raw material bins, and also includes a metering hopper that can be transferred and transported between the raw material bins. Each raw material bin is respectively provided with a raw material bin, a discharging device, a metering weighing device, a conveying device and a control module. The metering weighing device is embedded in the conveying device and its upper end face is flush with the upper end face of the conveying device. The metering hopper is moved to the metering weighing device of a raw material bin through the conveying device. The discharging device is started to discharge the raw materials in the raw material bin into the metering hopper. The metering weighing device is used to detect the increase in the weight of the metering hopper to reach a set value. The control module controls the discharging device to stop working according to the weight change on the metering weighing device reaching the set value. The metering hopper is moved to the metering weighing device of the next raw material bin through the conveying device to carry out quantitative addition of the next raw material.

2. The automatic metering mechanism for thermoplastic elastomer production according to claim 1, characterized in that: The discharging device is a screw conveyor, the feed port of the screw conveyor is connected to the bottom of the raw material bin, the discharge port of the screw conveyor extends to the top of the metering and weighing device, a drive motor is provided at one end of the screw conveyor, and the control module controls the start and stop of the drive motor.

3. The automatic metering mechanism for thermoplastic elastomer production according to claim 1, characterized in that: The conveying device is a conveying roller group.

4. The automatic metering mechanism for thermoplastic elastomer production according to claim 1, characterized in that: The measuring and weighing device is provided with a weighing sensor for weighing the weight of the measuring hopper in real time.

5. The automatic metering mechanism for thermoplastic elastomer production according to claim 1, characterized in that: The multiple raw material bins are arranged in a straight line, and each raw material bin is provided with a proximity sensing switch, which is used to detect whether the metering hopper has moved into place.

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