Rubber compound double-screw extruder

Abstract

The utility model discloses a rubber compound twin-screw extruder which comprises a weighing barrel, a cross plate is fixedly connected to the inner wall of the weighing barrel, connecting plates are fixedly connected to the two sides of a weighing hopper, iron rods are inserted into the inner walls of the connecting plates, the other ends of first springs abut against one sides of the iron rods, and the other ends of the second springs abut against the other sides of the iron rods. The bottom of the weighing barrel is communicated with four discharging ports, and a controller is installed on the outer wall of the weighing barrel. The utility model relates to the technical field of rubber compound double-screw extruders, which is characterized in that a weight sensor, an electromagnet and an iron rod are matched, the electromagnet is electrified through a controller, the electromagnet adsorbs the iron rod on one side to a column, and the iron rod drives plate bodies, so that a gap is formed between the two plate bodies, and raw materials can circulate; and the electromagnet is powered off, the two plate bodies can be closed under the action of the spring, and the time for preparing raw materials in advance is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of twin-screw extruders, in particular to a rubber compounding twin-screw extruder. Background Art

[0002] Twin-screw extruder is a device that uses two screws that move alternately to melt solid plastic and then extrude it. Its principle is to use the friction heat principle to heat and melt the solid plastic, and push the molten plastic to the mold for extrusion through the rotation of the screw.

[0003] The prior art twin-screw extruder for rubber compounding processes raw materials according to the production requirements for the rubber compounding. The processing of the raw materials requires classification, weighing and crushing of some larger-sized materials in advance, and then the rubber compounding process is carried out through the twin-screw extruder device.

[0004] However, the existing twin-screw extruder for rubber compounding requires the raw materials to be classified, weighed and crushed in advance. Since the entire process of processing the rubber compounding takes a long time, and it takes a certain amount of time to prepare the raw materials, the production efficiency of the rubber compounding is reduced. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a twin-screw extruder for compound rubber, which solves the problem that the entire process of processing compound rubber takes a long time and preparing raw materials takes a certain amount of time, thereby reducing the production efficiency of the compound rubber.

[0006] To achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a rubber compound twin-screw extruder, including a weighing barrel, a weighing device is arranged inside the weighing barrel, a twin-screw body is arranged below the weighing barrel, the weighing device includes a cross plate, a discharge port, a controller, a conical lower hopper, a weight sensor, a weighing hopper, a connecting plate, an electromagnet, an iron rod, a first spring and a plate body, the cross plate is fixedly connected to the inner wall of the weighing barrel, a conical lower hopper is installed between the cross plate and the weighing barrel, a weight sensor fixedly connected to the inner wall of the weighing barrel is arranged below the conical lower hopper, and the top of the weight sensor is fitted with A weighing hopper, wherein both sides of the weighing hopper are fixedly connected with connecting plates, an iron rod is inserted into the inner wall of the connecting plate, electromagnets are arranged below both sides of the weighing hopper, the electromagnets on both sides are respectively fixed to the surfaces of the weighing bucket and the cross plate, one end of the iron rod away from the electromagnet is fixedly connected with a plate body, the bottom of the weighing hopper is fitted with the top of the plate body, a first spring is sleeved on the outer wall of the iron rod, one end of the first spring close to the electromagnet is tightly pressed against one side of the connecting plate, and the other end of the first spring is tightly pressed against one side of the iron rod, the bottom of the weighing bucket is connected with four discharge ports, and a controller is installed on the outer wall of the weighing bucket.

[0007] Preferably, a feed hopper is provided below the discharge port, and first limit blocks are fixedly connected to both sides of the inner wall of the feed hopper, a second spring is fixedly connected to the side of the first limit block, and the other end of the second spring is fixedly connected to the second limit block, a filter screen is fixedly connected therebetween, a vibration motor is fixedly connected to the bottom of the second limit block, and a door panel is hinged on one side of the feed hopper.

[0008] Preferably, the feed hopper is installed at the feed port of the twin-screw body, a reducer is installed at one end of the twin-screw body, a base is fixedly connected to the bottom of the reducer, the top of the base is fixedly connected to the bottom of the twin-screw body, a first motor is installed at the input end of the reducer, a head is installed at the end of the twin-screw body, and a plurality of inspection doors are installed on the front of the twin-screw body.

[0009] Preferably, a second motor installed on the top of the reducer is provided on the side of the feed hopper, and the output end of the second motor passes through the side wall of the feed hopper through a sealed bearing and extends to the interior of the feed hopper, and the output end of the second motor is installed with a stirring rod located inside the feed hopper.

[0010] Preferably, a column is provided on one side of the weighing bucket, and one side of the weighing bucket is fixedly connected to the column, and the bottom of the column is fixedly connected to the top of the base.

[0011] Beneficial Effects

[0012] The utility model provides a twin-screw extruder for mixing rubber. It has the following beneficial effects: the twin-screw extruder for mixing rubber is equipped with a weighing device in each area of ​​the weighing bucket divided by a cross plate through the cooperation between a weight sensor, an electromagnet and an iron rod. Different raw materials are poured into each area of ​​the weighing bucket and fall into the weighing bucket. The weight sensor detects the weight of the raw materials. When a certain weight of raw materials is required for production, the electromagnet is energized through a controller, and the electromagnet adsorbs the iron rod on the side, and the iron rod drives the plate body, so that a gap appears between the two plate bodies, so that the raw materials can flow. When the raw materials meet the ratio requirements, the electromagnet is de-energized, and the two plate bodies are closed under the action of the spring, which greatly reduces the time for preparing the raw materials in advance.

[0013] Through the cooperation between the limit blocks, the filter screen and the vibration motor, the raw materials coming out of the weighing barrel outlet will fall onto the filter screen in the feed hopper. The vibration motor is started to make the filter screen swing between the two limit blocks to filter out impurities such as leaves and stones in the raw materials, so that the raw materials entering the twin-screw body will not affect the quality of the compound rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the appearance of the utility model;

[0016] Figure 3 for Figure 1 Schematic diagram of the structure of the electromagnet, weight sensor and iron rod;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the middle filter, limit block and vibration motor;

[0018] Figure 5 for Figure 1 Schematic diagram of the structure of the middle stirring rod and the feed hopper;

[0019] Figure 6 for Figure 2 Schematic diagram of the structure of the middle cross plate, controller and weighing bucket;

[0020] Figure 7 for Figure 2 Schematic diagram of the structure of the first spring, electromagnet and connecting plate.

[0021] In the figure: 1, weighing barrel, 2, conical lower hopper, 3, weight sensor, 4, weighing hopper, 5, connecting plate, 6, electromagnet, 7, iron rod, 8, first spring, 9, plate body, 10, discharge port, 11, cover body, 12, cross plate, 13, feed hopper, 14, machine head, 15, column, 16, second limit block, 17, second spring, 18, first limit block, 19, stirring rod, 20, vibration motor, 21, filter screen, 22, twin-screw body, 23, reducer, 24, base, 25, first motor, 26, second motor, 27, inspection door and 28, controller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The existing twin-screw extruder for rubber compounding requires the raw materials to be classified, weighed and crushed in advance. Since the entire process of processing the rubber compounding takes a long time, and it takes a certain amount of time to prepare the raw materials, the production efficiency of the rubber compounding is reduced.

[0024] In view of this, the utility model provides a twin-screw extruder for mixing rubber. Through the cooperation between a weight sensor, an electromagnet and an iron rod, a weighing device is installed in each area of ​​a weighing barrel divided by a cross plate. Different raw materials are poured into each area of ​​the weighing barrel and fall into the weighing bucket. The weight sensor detects the weight of the raw materials. When a certain weight of raw materials is required for production, the electromagnet is energized through a controller, and the electromagnet adsorbs the iron rod column on the side, and the iron rod drives the plate body to form a gap between the two plate bodies so that the raw materials can flow. When the raw materials reach the ratio requirement, the electromagnet is de-energized, and the two plate bodies are closed under the action of a spring, which greatly reduces the time for preparing the raw materials in advance.

[0025] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0026] Embodiment 1: By Figure 1-4 It can be seen that a rubber compounding twin-screw extruder comprises a weighing barrel 1, a weighing device is arranged inside the weighing barrel 1, a twin-screw body 22 is arranged below the weighing barrel 1, the weighing device comprises a cross plate 12, a discharge port 10, a controller 28, a conical lower hopper 2, a weight sensor 3, a weighing hopper 4, a connecting plate 5, an electromagnet 6, an iron rod 7, a first spring 8 and a plate body 9, a conical lower hopper 2 is installed between the cross plate 12 and the weighing barrel 1, and the weighing barrel 1 is evenly divided into four equal parts, and the conical lower hopper 2 can ensure that the incoming raw materials fall completely on the top of the plate body 9, and a weight sensor 3 fixedly connected to the inner wall of the weighing barrel 1 is arranged below the conical lower hopper 2, and the model of the weight sensor 3 is JHHM-H1, the weighing hopper 4 is attached to the top of the weight sensor 3, and the weighing hopper 4 is fixedly connected to the connection on both sides. Plate 5, the inner wall of the connecting plate 5 is plugged with an iron rod 7, the weight of the weighing hopper 4, the connecting plate 5, the iron rod 7 and the first spring 8 are all located on the weight sensor 3, and the value of the weight sensor 3 is zero before the raw materials enter, and electromagnets 6 are arranged below both sides of the weighing hopper 4, and the electromagnets 6 located on both sides are respectively fixed to the surfaces of the weighing barrel 1 and the cross plate 12, and the end of the iron rod 7 away from the electromagnet 6 is fixedly connected to the plate body 9, the bottom of the weighing hopper 4 is fitted with the top of the plate body 9, the outer wall of the iron rod 7 is sleeved with the first spring 8, the end of the first spring 8 close to the electromagnet 6 is tightly pressed against one side of the connecting plate 5, and the other end of the first spring 8 is tightly pressed against one side of the iron rod 7, the bottom of the weighing barrel 1 is connected with four discharge ports 10, and the outer wall of the weighing barrel 1 is installed with a controller 28, and the model of the controller 28 is PR10;

[0027] In the specific implementation process, it is worth pointing out that the cross plate 12 divides the weighing barrel 1 into four equal parts, and different raw materials can be put into the weighing barrel 1 for proportioning and weighing. When the raw materials enter the weighing barrel 1, they will fall into the weighing bucket 4, and the weight sensor 3 detects the weight of the raw materials. When a certain weight of raw materials is needed for production, the electromagnet 6 is energized through the controller 28, and the electromagnet 6 adsorbs the iron rod 7 on the side, and the iron rod 7 drives the plate body 9, so that a gap appears between the two plate bodies 9, so that the raw materials can flow. When the raw materials meet the proportion requirements, the electromagnet 6 is de-energized, and the two plate bodies 9 are closed under the action of the first spring 8, which plays a role in feeding the raw materials according to certain proportion requirements;

[0028] Further, a feed hopper 13 is provided below the discharge port 10, and first limit blocks 18 are fixedly connected to both sides of the inner wall of the feed hopper 13, a second spring 17 is fixedly connected to the side of the first limit block 18, and the other end of the second spring 17 is fixedly connected to the second limit block 16, and a filter screen 21 is fixedly connected between the two second springs 17, and the filter screen 21 filters out impurities such as leaves and stones contained in the raw materials, and a vibration motor 20 is fixedly connected to the bottom of the second limit block 16, and a door panel 11 is hinged on one side of the feed hopper 13;

[0029] In the specific implementation process, it is worth pointing out that the raw materials coming out of the discharge port 10 of the weighing barrel 1 will fall onto the filter screen 21 in the feed hopper 13, and the vibration motor 20 is started to make the filter screen 21 shake between the two limit blocks to filter out impurities such as leaves and stones contained in the raw materials, thereby avoiding the problem of affecting the quality of the mixed rubber due to impurities contained in the raw materials;

[0030] Specifically, when using the twin-screw extruder for rubber compounding, firstly, different raw materials are poured into the four areas of the weighing barrel 1 respectively, and the weighing devices in the four areas will weigh the raw materials. For example, each weighing hopper 4 is filled with twenty kilograms of raw materials. When a certain ratio of raw materials is needed, the controller 28 is adjusted to make each weighing hopper 4 drop a certain weight of raw materials, and the weight sensor 3 is used to sense the weight of the remaining raw materials inside the weighing hopper 4 for regulation. The raw materials coming out of the discharge port 10 of the weighing barrel 1 will fall onto the filter screen 21 in the feed hopper 13, and the vibration motor 20 is started to make the filter screen 21 shake between the two limit blocks to filter out impurities such as leaves and stones contained in the raw materials. The filtered raw materials enter the twin-screw body 22 to make rubber compounding.

[0031] Embodiment 2: By Figure 1-4It can be seen that the feed hopper 13 is installed at the feed port of the twin-screw body 22. The twin-screw body 22 mainly processes the raw materials into compound rubber. A reducer 23 is installed at one end of the twin-screw body 22. A base 24 is fixedly connected to the bottom of the reducer 23. The top of the base 24 is fixedly connected to the bottom of the twin-screw body 22. A first motor 25 is installed at the input end of the reducer 23. A head 14 is installed at the end of the twin-screw body 22. A plurality of inspection doors 27 are installed on the front of the twin-screw body 22.

[0032] In the specific implementation process, it is worth pointing out that the twin screws in the twin screw body 22 are driven to rotate by starting the first motor 25, and the raw materials entering the twin screw body 22 are processed. The raw materials are stirred, heated and other processes in the body, and finally extruded through the head 14. The entire extruder is located on the base 24 to ensure sufficient stability during the production process. A plurality of inspection doors 27 are provided on the front of the twin screw body 22 to ensure that the twin screw body 22 can be repaired in time when there is a problem.

[0033] Furthermore, a second motor 26 installed on the top of the reducer 23 is provided on the side of the feed hopper 13, and the output end of the second motor 26 passes through the side wall of the feed hopper 13 through a sealed bearing and extends to the inside of the feed hopper 13. The output end of the second motor 26 is installed with a stirring rod 19 located inside the feed hopper 13;

[0034] In the specific implementation process, it is worth noting that by starting the second motor 26 to drive the stirring rod 19 connected through the sealed bearing, the different raw materials coming out of the four discharge ports 10 of the weighing barrel 1 are mixed and stirred, which plays a role in mixing the raw materials in advance and reduces the workload of the twin-screw body 22;

[0035] Furthermore, a column 15 is provided on one side of the weighing bucket 1, and one side of the weighing bucket 1 is fixedly connected to the column 15, and the bottom of the column 15 is fixedly connected to the top of the base 24;

[0036] In the specific implementation process, it is worth pointing out that the weighing bucket 1 can be fixed above the feed hopper 13 by means of the column 15, so as to ensure that the raw materials coming out of the discharge port 10 of the feed hopper 13 enter the inside of the feed hopper 13;

[0037] Specifically, based on the above-mentioned embodiment 1, the first motor 25 and the second motor 26 are started when the rubber compound is produced, and the second motor 26 drives the stirring rod 19 to mix the filtered raw materials, and the mixed raw materials enter the twin-screw body 22 for processing.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A twin-screw extruder for mixing rubber, comprising a weighing barrel (1), characterized in that: A weighing device is arranged inside the weighing barrel (1), and a twin-screw body (22) is arranged below the weighing barrel (1); The weighing device comprises a cross plate (12), a discharge port (10), a controller (28), a conical lower hopper (2), a weight sensor (3), a weighing hopper (4), a connecting plate (5), an electromagnet (6), an iron rod (7), a first spring (8) and a plate body (9); The cross plate (12) is fixedly connected to the inner wall of the weighing barrel (1), a conical lower hopper (2) is installed between the cross plate (12) and the weighing barrel (1), a weight sensor (3) fixedly connected to the inner wall of the weighing barrel (1) is arranged below the conical lower hopper (2), a weighing hopper (4) is attached to the top of the weight sensor (3), both sides of the weighing hopper (4) are fixedly connected to connecting plates (5), the inner wall of the connecting plate (5) is plugged with an iron rod (7), and both sides of the weighing hopper (4) are arranged below the electromagnets (6), and the electromagnets (6) located on both sides are respectively The iron rod (7) is fixedly connected to the surface of the weighing barrel (1) and the cross plate (12); one end of the iron rod (7) away from the electromagnet (6) is fixedly connected to the plate body (9); the bottom of the weighing hopper (4) is in contact with the top of the plate body (9); the outer wall of the iron rod (7) is sleeved with a first spring (8); one end of the first spring (8) close to the electromagnet (6) is tightly pressed against one side of the connecting plate (5); the other end of the first spring (8) is tightly pressed against one side of the iron rod (7); the bottom of the weighing barrel (1) is connected to four discharge ports (10); and a controller (28) is installed on the outer wall of the weighing barrel (1).

2. A twin-screw extruder for mixing rubber according to claim 1, characterized in that: A feed hopper (13) is provided below the discharge port (10), and first limit blocks (18) are fixedly connected to both sides of the inner wall of the feed hopper (13), a second spring (17) is fixedly connected to the side of the first limit block (18), the other end of the second spring (17) is fixedly connected to a second limit block (16), a filter screen (21) is fixedly connected between the two second springs (17), a vibration motor (20) is fixedly connected to the bottom of the second limit block (16), and a door panel (11) is hinged on one side of the feed hopper (13).

3. A rubber compound twin-screw extruder according to claim 2, characterized in that: The feed hopper (13) is installed at the feed port of the twin-screw body (22); a reducer (23) is installed at one end of the twin-screw body (22); a base (24) is fixedly connected to the bottom of the reducer (23); the top of the base (24) is fixedly connected to the bottom of the twin-screw body (22); a first motor (25) is installed at the input end of the reducer (23); a head (14) is installed at the end of the twin-screw body (22); and a plurality of inspection doors (27) are installed on the front of the twin-screw body (22).

4. A rubber compound twin-screw extruder according to claim 3, characterized in that: A second motor (26) mounted on the top of the reducer (23) is provided on the side of the feed hopper (13); an output end of the second motor (26) passes through the side wall of the feed hopper (13) through a sealed bearing and extends to the interior of the feed hopper (13); a stirring rod (19) located inside the feed hopper (13) is installed at the output end of the second motor (26).

5. A twin-screw extruder for mixing rubber according to claim 1, characterized in that: A column (15) is provided on one side of the weighing bucket (1), and one side of the weighing bucket (1) is fixedly connected to the column (15), and the bottom of the column (15) is fixedly connected to the top of the base (24).

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