Quantitative conveying device for plastic raw material

Abstract

The utility model relates to quantitative conveying device technical field, and disclose a kind of quantitative conveying device of plastic raw material, including conveying mechanism, mounting bracket, raw material bin, discharge port, reciprocating displacement mechanism, material receiving bin, anti-overflow plate, blanking hole and discharge valve.Using this structure, by reciprocating displacement mechanism drive multiple material receiving bin moves simultaneously, so that any material receiving bin opens to reach material receiving under discharge port after horizontal displacement;Because it is provided with anti-overflow plate, when reciprocating displacement mechanism drives full material receiving bin to continue to move, anti-overflow plate blocks the upper inlet of material receiving bin in a certain range, prevent plastic raw material overflow, while making the plastic raw material of raw material bin unable to continue to fall, realize the full quantitative of material receiving bin;When next empty material receiving bin reaches the blanking hole under raw material bin, continue to receive material, while the discharge valve of previous material receiving bin is opened, and plastic raw material is dropped on conveying mechanism, realize segment quantitative feeding, improve conveying efficiency and quantitative accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of quantitative conveying devices, specifically a quantitative conveying device for plastic raw materials. Background Technology

[0002] The main component of plastic raw materials is resin polymers. Most plastic raw materials are extracted from oils; the most familiar example is PC (polycarbonate) material, which is derived from petroleum. Because these raw materials are limited, plastics can be recycled. Currently, most plastics can be melted down into plastic granules, which can be used as raw materials for plastic products. During the processing of plastic raw materials, it is often necessary to quantitatively feed them to meet the needs of subsequent processing.

[0003] Currently, existing plastic raw material metering conveying devices suffer from low metering accuracy and low conveying efficiency, failing to meet the demands of large-scale production. Therefore, a new type of plastic raw material metering conveying device is needed to solve these problems. Utility Model Content

[0004] The present invention provides a quantitative conveying device for plastic raw materials, which solves the problems of low quantitative accuracy and low conveying efficiency of existing quantitative conveying devices for plastic raw materials, thus failing to meet the needs of large-scale production.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A quantitative conveying device for plastic raw materials includes a conveying mechanism, an mounting frame positioned above the conveying mechanism, a raw material hopper mounted on the mounting frame, a discharge port at the lower end of the raw material hopper, a reciprocating mechanism mounted on the mounting frame corresponding to the lower position of the raw material hopper, and multiple receiving hoppers mounted on the reciprocating mechanism. The receiving hoppers are driven by the reciprocating mechanism to receive material at the lower end of the discharge port, and the upper surface of each receiving hopper is flush with the lower surface of the raw material hopper. An anti-overflow plate is provided on the lower end of each receiving hopper. A discharge port is provided at the lower end of each discharge port, and a discharge valve is provided on the discharge port. "Multiple" refers to two or more valves. The discharge valve can be any type of existing technology, such as a pneumatic butterfly valve, an electric gate valve, or a rotary valve. This structure stores plastic raw materials in the raw material hopper, and releases the raw materials through the discharge port. A reciprocating mechanism moves multiple receiving hoppers simultaneously, ensuring that any receiving hopper, after horizontal displacement, opens below the discharge port to receive materials. Since the upper surface of the receiving hopper is on the same plane as the lower surface of the raw material hopper, and the lower surface of the raw material hopper is equipped with an overflow prevention plate, when the reciprocating mechanism moves a full receiving hopper, the overflow prevention plate blocks the upper inlet of the receiving hopper within a certain range, preventing plastic raw materials from overflowing. Simultaneously, it prevents the plastic raw materials in the raw material hopper from falling further, achieving quantitative filling of the receiving hopper. When the next empty receiving hopper reaches below the discharge port of the raw material hopper, it continues to receive materials, while the previous receiving hopper opens its discharge valve, allowing the plastic raw materials to fall onto the conveying mechanism. This achieves segmented quantitative feeding, improving conveying efficiency and quantitative accuracy.

[0007] Furthermore, the reciprocating displacement mechanism includes displacement frames symmetrically arranged on the inner wall of the mounting frame, a displacement guide rod on the left displacement frame, and a displacement screw rotatably connected to the right displacement frame. A first motor for driving the displacement screw to rotate is also mounted on the right displacement frame. The left side of the receiving bin is slidably connected to the displacement guide rod, and the right side of the receiving bin is threadedly connected to the displacement screw. With this structure, the first motor drives the displacement screw to rotate. Since the right side of the receiving bin is threadedly connected to the displacement screw and the left side is slidably connected to the displacement guide rod, the receiving bin reciprocates linearly along the direction of the displacement frame under the guidance of the threaded drive and the displacement guide rod. The screw drive and guide rod method results in a simple structure, stable and reliable movement, and precise control of the receiving bin's displacement, ensuring the accuracy of the receiving position and thus guaranteeing the precision of the quantitative delivery of plastic raw materials.

[0008] Furthermore, the receiving bin includes an outer bin and an inner bin detachably connected to the outer bin, with a metering chamber inside the inner bin. The left side of the outer bin is slidably connected to the displacement guide rod, and the right side of the outer bin is threadedly connected to the displacement screw. The discharge valve is located at the bottom of the outer bin. Specifically, a receiving platform is provided at the lower end of the outer bin, and the lower end of the inner bin rests against the receiving platform. With this structure, plastic raw materials enter the metering chamber of the inner bin for quantitative storage. The outer bin is connected to a reciprocating displacement mechanism, which moves the inner bin. When discharge is required, the raw material in the metering chamber is released through the discharge valve at the bottom of the outer bin. The inner and outer bins are detachably connected, facilitating the replacement of inner bins of different specifications (with different metering chamber volumes) according to different quantitative requirements, thus improving the versatility and adaptability of the device. The metering chamber enables accurate metering of the plastic raw materials, ensuring quantitative delivery.

[0009] Furthermore, the outer compartment has an installation slot, and the inner compartment is placed into the installation slot from the top. With this structure, the installation slot provides an installation position for the inner compartment, which can be directly inserted from the top of the slot to assemble with the outer compartment. Disassembly is performed by reversing the operation. This installation method is simple and convenient, facilitating quick replacement of the inner compartment, reducing the time cost of equipment maintenance and adjustment, and improving work efficiency.

[0010] Furthermore, the outer end of any of the outer chambers is provided with a sealing plate to cooperate with the discharge port. With this structure, when all the receiving chambers move to the position below the discharge port, the sealing plate cooperates with the discharge port to form a relatively closed space, preventing raw materials from spilling during the replacement of inner chambers of other receiving chambers or during machine shutdown.

[0011] Beneficial effects: The raw material silo stores plastic raw materials, and the discharge port is used to release the raw materials. A reciprocating mechanism drives multiple receiving silos to move simultaneously, ensuring that any receiving silo, after horizontal displacement, opens below the discharge port to receive material. Because the upper surface of the receiving silo is on the same plane as the lower surface of the raw material silo, and the lower surface of the raw material silo is equipped with an overflow prevention plate, when the reciprocating mechanism drives a full receiving silo to continue moving, the overflow prevention plate blocks the upper inlet of the receiving silo within a certain range, preventing plastic raw materials from overflowing. Simultaneously, it prevents the plastic raw materials in the raw material silo from falling further, achieving quantitative filling of the receiving silo. When the next empty receiving silo reaches below the discharge port of the raw material silo, it continues to receive material, while the previous receiving silo opens its discharge valve, allowing the plastic raw materials to fall onto the conveying mechanism, achieving segmented quantitative feeding, improving conveying efficiency and quantitative accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the conveying mechanism in this embodiment;

[0013] Figure 2 This is a schematic diagram of the raw material silo in this embodiment;

[0014] Figure 3 This is a schematic diagram of the upward slope of the raw material silo in this embodiment.

[0015] Reference numerals in the attached drawings: 1. Conveying mechanism; 2. Mounting frame; 3. Raw material bin; 4. Reciprocating transfer mechanism; 401. Displacement frame; 403. Displacement guide rod; 403. Displacement screw; 404. First motor; 5. Receiving bin; 501. Outer bin; 502. Inner bin; 6. Overflow prevention plate; 7. Lower discharge valve; 8. Sealing plate. Detailed Implementation

[0016] The following will provide a more detailed description of the technical solution of a quantitative conveying device for plastic raw materials according to the present invention, in conjunction with embodiments.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1 , Figure 2 , Figure 3As shown, this embodiment of a quantitative conveying device for plastic raw materials includes a conveying mechanism 1. A mounting frame 2 is provided above the conveying mechanism 1. A raw material hopper 3 is provided on the mounting frame 2. A discharge port is provided at the lower end of the raw material hopper 3. A reciprocating shifting mechanism 4 is provided on the mounting frame 2 corresponding to the position below the raw material hopper 3. A plurality of receiving hoppers 5 are provided on the reciprocating shifting mechanism 4. The receiving hoppers 5 reach the lower end of the discharge port to receive material through the drive of the reciprocating shifting mechanism 4. The upper end surface of the receiving hopper 5 is on the same plane as the lower end surface of the raw material hopper 3. An anti-overflow plate 6 is provided on the lower end surface of the raw material hopper 3. A discharge port is provided at the lower end of the receiving hopper 5. A lower discharge valve 7 is provided on the discharge port. The reciprocating displacement mechanism 4 includes displacement frames 401 symmetrically arranged on the inner sidewall of the mounting frame 2, a displacement guide rod 402 on the left displacement frame 401, and a displacement screw 403 rotatably connected to the right displacement frame 401. A first motor 404 for driving the displacement screw 403 to rotate is also provided on the right displacement frame 401. The left side of the receiving bin 5 is slidably connected to the displacement guide rod 402, and the right side of the receiving bin 5 is threadedly connected to the displacement screw 403. The receiving bin 5 includes an outer bin 501 and an inner bin 502 detachably connected to the outer bin 501. The inner bin 502 has a metering chamber. The left side of the outer bin 501 is slidably connected to the displacement guide rod 402, and the right side of the outer bin 501 is threadedly connected to the displacement screw 403. The lower discharge valve 7 is located at the bottom of the outer bin 501. The outer chamber 501 has an installation groove, and the inner chamber 502 is placed in the installation groove from the upper end of the installation groove. A sealing plate 8 for accommodating the discharge port is provided at either end of the outer chamber 501.

[0019] In use, plastic raw materials are placed into the raw material hopper 3, and the first motor 404 is started. The first motor 404 drives the displacement screw 403 to rotate, causing the receiving hopper 5 to move towards the discharge port of the raw material hopper 3 under the action of the displacement guide rod 402 and the displacement screw 403. When one of the receiving hoppers 5 moves below the discharge port, the plastic raw materials in the raw material hopper 3 fall from the discharge port into the metering chamber 502 of the inner chamber of that receiving hopper 5. When the metering chamber is full, the resetting mechanism 4 continues to drive the receiving hopper 5 to move. At this time, the anti-overflow plate 6 at the lower end of the raw material hopper 3 blocks the upper feed port of the receiving hopper 5 to prevent the plastic raw materials from overflowing, and at the same time, the plastic raw materials in the raw material hopper 3 stop falling. When the next When an empty receiving bin 5 moves below the discharge port, it continues to receive material. At the same time, the receiving bin 5 filled with plastic raw material opens the lower discharge valve 7, allowing the plastic raw material to fall from the discharge port onto the conveying mechanism 1. The conveying mechanism 1 then transports the plastic raw material to the next process. Through the alternating receiving and discharging of multiple receiving bins 5, the quantitative and continuous conveying of plastic raw material is achieved. During the entire operation, the quantitative value of plastic raw material can be adjusted by changing the inner bins 502 of different specifications according to actual production needs. Furthermore, the lower discharge valve 7 can precisely control the discharging time and speed, enabling the device to operate efficiently and stably in different production scenarios and fully meeting the diverse needs of quantitative conveying of plastic raw material. With this structure, the raw material hopper 3 stores plastic raw materials, and the discharge port is used to release the raw materials. The reciprocating mechanism 4 drives multiple receiving hoppers 5 to move simultaneously, so that after horizontal displacement, the opening of any receiving hopper 5 reaches below the discharge port to receive materials. Since the upper end face of the receiving hopper 5 is on the same plane as the lower end face of the raw material hopper 3, and the lower end face of the raw material hopper 3 is provided with an anti-overflow plate 6, when the reciprocating mechanism 4 drives the full receiving hopper 5 to continue moving, the anti-overflow plate 6 blocks the upper inlet of the receiving hopper 5 within a certain range to prevent the plastic raw materials from overflowing. At the same time, it prevents the plastic raw materials in the raw material hopper 3 from continuing to fall, thus achieving full and quantitative filling of the receiving hopper 5. When the next empty receiving hopper 5 reaches below the discharge port of the raw material hopper 3, it continues to receive materials, and at the same time, the previous receiving hopper 5 opens the lower discharge valve 7 to let the plastic raw materials fall onto the conveying mechanism 1, realizing segmented quantitative feeding, improving conveying efficiency and quantitative accuracy.

[0020] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge or conventional technology in the field. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0021] 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 quantitative conveying device for plastic raw materials, characterized in that: The device includes a conveying mechanism, an mounting frame positioned above the conveying mechanism, a raw material hopper mounted on the mounting frame, a discharge port at the lower end of the raw material hopper, a reciprocating mechanism mounted on the mounting frame corresponding to the position below the raw material hopper, a plurality of receiving hoppers mounted on the reciprocating mechanism, the receiving hoppers being driven by the reciprocating mechanism to reach the lower end of the discharge port to receive material, and the upper end surface of the receiving hoppers being on the same plane as the lower end surface of the raw material hopper, and an anti-overflow plate being provided on the lower end surface of the raw material hopper; a discharge port is provided at the lower end of the receiving hopper, and a discharge valve is provided on the discharge port.

2. The quantitative conveying device for plastic raw materials according to claim 1, characterized in that: The reciprocating displacement mechanism includes displacement frames symmetrically arranged on the inner sidewall of the mounting frame, a displacement guide rod on the left displacement frame, a displacement screw rotatably connected to the right displacement frame, and a first motor for driving the displacement screw to rotate on the right displacement frame; the left side of the receiving bin is slidably connected to the displacement guide rod, and the right side of the receiving bin is threadedly connected to the displacement screw.

3. The quantitative conveying device for plastic raw materials according to claim 2, characterized in that: The receiving bin includes an outer bin and an inner bin detachably connected to the outer bin, the inner bin having a metering chamber; the left side of the outer bin is slidably connected to the displacement guide rod, and the right side of the outer bin is threadedly connected to the displacement screw; the discharge valve is located at the bottom of the outer bin.

4. The quantitative conveying device for plastic raw materials according to claim 3, characterized in that: The outer compartment has an installation slot, and the inner compartment is placed inside the installation slot from the top of the installation slot.

5. The quantitative conveying device for plastic raw materials according to claim 3, characterized in that: The outer end of the outer compartment, including any one end, is provided with a sealing plate for cooperating with the discharge port.

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