Extruder feed device

Abstract

The utility model discloses an extruder feedway, including conveying assembly, the both sides of conveying assembly are provided with limit component and detection component respectively, and the glue material is limited through limit component to facilitate through conveying assembly drive into the detection range of detection component and enter extruder feed inlet, the cooperation of conveying assembly, limit component and detection component of the application, after the glue material is led out from the upstream tool car, first through limit component and carries out primary direction and limit, then enters the conveying area driven by conveying assembly, finally after the detection range of detection component, is stably sent into the feed inlet of extruder, and detection component monitors the state of glue material, can timely feedback control signal, avoids the fracture or supply interruption caused by the too big or too small of glue material tension. The whole device simple structure, small footprint, especially adapts to small -size extruder, guarantees the continuity and stability of supply simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of tire manufacturing technology, specifically to an extruder feeding device. Background Technology

[0002] In the tire manufacturing process, the existing technology uses a rubber supply conveyor belt to supply and separate the final compound rubber. Common rubber supply conveyor devices occupy a large area and have outstanding rubber supply capacity, making them suitable for large-capacity extruders. For small-scale extruders, using the above-mentioned rubber supply devices is not only a waste of space, but also causes overperformance and energy waste. Therefore, in most cases, the rubber material is directly pulled to the screw of a small-scale extruder and supplied by the rotation of the screw.

[0003] The above-mentioned glue supply method is prone to causing the glue to break during the glue supply process, requiring manual re-feeding. Insufficient glue filling in the barrel can cause air bubbles inside the core and problems such as insufficient width and thickness. Based on this situation, it is necessary to design a small extruder feeding device. Utility Model Content

[0004] To address the shortcomings of existing technologies, an extruder feeding device is proposed, which solves the problems in the background technology of commonly used rubber feeding methods for small-scale extruders, which easily cause the rubber material to break during the feeding process, requiring manual refeeding, and resulting in poor quality and incomplete filling of the rubber material in the barrel.

[0005] To achieve the above objectives, the present invention proposes the following technologies: An extruder feeding device includes a conveying assembly. A limiting assembly and a detection assembly are respectively provided on both sides of the conveying assembly. The rubber material is limited by the limiting assembly so that it can be driven by the conveying assembly into the detection range of the detection assembly and into the extruder feed port. The detection assembly is used to detect the length of the rubber material conveyed by the conveying assembly to prevent the rubber material from breaking.

[0006] Furthermore, the conveying assembly includes a drive roller, which is rotatably connected to the support frame for driving the conveying of the rubber material, and a free roller is provided above the drive roller to prevent the rubber material from slipping.

[0007] Furthermore, the free roller is mounted on a rotating frame, which is rotatably connected to a support frame. The rotating frame rotates and drives the free roller to approach the drive roller, thereby applying pressure to the rubber material between the two and preventing the rubber material from slipping on the drive roller.

[0008] Furthermore, the rotating frame includes two support rods symmetrically arranged about the free roller, the support rods being connected by a connecting rod, and a cylinder being hinged to the top of the support frame, the telescopic end of the cylinder being hinged to the connecting rod.

[0009] Furthermore, the limiting component includes an inner bottom roller and an outer bottom roller arranged parallel to the drive roller. The inner bottom roller is located between the drive roller and the outer bottom roller. The rubber material enters from below the outer bottom roller between the inner bottom roller and the outer bottom roller, and is then conveyed by the drive roller.

[0010] Furthermore, the limiting assembly also includes side rollers arranged perpendicular to the drive roller. The side rollers are located between the inner bottom roller and the outer bottom roller. There are two side rollers symmetrically arranged about the support frame. The two side rollers are used to limit the rubber material located between the inner bottom roller and the outer bottom roller from both sides.

[0011] Furthermore, an extruder is provided on one side of the support frame, and the detection assembly includes a detection frame disposed between the extruder and the support frame, with a light curtain for detecting the position of the rubber material disposed between the detection frame and the support frame.

[0012] Furthermore, the light curtain includes a first light curtain and a second light curtain arranged vertically at intervals. The first light curtain is used to detect the highest position of the drooping adhesive material, and the second light curtain is used to detect the lowest position of the drooping adhesive material.

[0013] Furthermore, the active roller is driven to rotate by a motor fixed on the support frame. The first light curtain and the second light curtain are respectively connected to the motor signal, thereby controlling the conveying speed of the active roller driven by the motor to move the rubber material, so as to adjust the drooping position of the rubber material.

[0014] Compared with the prior art, the comprehensive effects brought about by this utility model include: This application utilizes a combination of conveying, limiting, and detection components. After the rubber compound is drawn from the upstream tooling carriage, it first undergoes initial guidance and limiting by the limiting components, then enters the conveying area driven by the conveying components, and finally, after passing through the detection range of the detection components, is smoothly fed into the extruder's feed inlet. Through the synergistic action of these three components, the feeding process is mechanized and automated. The detection components monitor the state of the rubber compound and provide timely feedback control signals, preventing breakage or interruption of feeding due to excessive or insufficient rubber compound tension. The overall device has a simple structure, small footprint, and is particularly suitable for small extruders, while ensuring continuous and stable feeding. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the overall structure of an embodiment of this utility model; Figure 2 This is a side view of the overall structure of an embodiment of the present utility model.

[0016] Legend: 1. Drive roller; 2. Support frame; 3. Free roller; 4. Rotating frame; 5. Connecting rod; 6. Cylinder; 7. Inner bottom roller; 8. Outer bottom roller; 9. Side roller; 10. Detection frame; 11. First light curtain; 12. Second light curtain. Detailed Implementation

[0017] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] In this document, terms such as “up,” “down,” “left,” “right,” and “top” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figures 1 to 2 As shown, an extruder feeding device includes a conveying assembly. A limiting assembly and a detection assembly are respectively provided on both sides of the conveying assembly. The rubber material is limited by the limiting assembly so that it can be driven by the conveying assembly into the detection range of the detection assembly and into the extruder feed port. The detection assembly is used to detect the length of the rubber material conveyed by the conveying assembly to prevent the rubber material from breaking.

[0020] Through the coordinated operation of the conveying, limiting, and detection components, the rubber compound, after being drawn from the upstream tooling carriage, first undergoes initial guidance and limiting by the limiting components, then enters the conveying area driven by the conveying components, and finally, after passing through the detection range of the detection components, is smoothly fed into the extruder's feed inlet. The synergistic action of these three components achieves mechanization and automation of the feeding process. The detection components monitor the state of the rubber compound (such as its droop length) and can promptly provide control signals, preventing breakage or interruption of feeding due to excessive or insufficient rubber compound tension. The overall device has a simple structure, small footprint, and is particularly suitable for small extruders, while ensuring continuous and stable feeding.

[0021] The above structure fundamentally avoids quality problems such as substandard product width and thickness and internal air bubbles caused by rubber material breakage and incomplete filling; it improves the overall rubber supply efficiency and reliability. Compared with the large rubber supply and transportation devices in the background technology, this device has a smaller footprint and a simpler structure, making it particularly suitable for small extruders and avoiding resource waste and performance overkill.

[0022] In the extruder feeding device of this embodiment, the conveying component includes a drive roller 1, which is rotatably connected to the support frame 2 for driving the conveying of rubber material. A free roller 3 is provided above the drive roller 1 to prevent the rubber material from slipping.

[0023] Specifically, the drive roller 1 is driven by a motor and is rotatably mounted on the support frame 2 via a bearing seat. After the motor starts, it drives the drive roller 1 to rotate, providing power for conveying the rubber material through friction with the surface of the rubber material. Directly above the drive roller 1, a free roller 3 is provided, which is in close contact with the upper surface of the rubber material under its own weight or external pressure.

[0024] The free roller 3 increases the contact wrap angle and positive pressure between the rubber material and the drive roller 1, effectively preventing the rubber material from slipping on the surface of the drive roller 1, ensuring the stable transmission of traction force, thereby ensuring the uniformity of the feeding speed, significantly improving the transmission efficiency, and laying a solid foundation for further automatic control.

[0025] Preferably, in this embodiment, the support frame 2 is made of two galvanized steel pipes erected vertically as support, with a support height of about 1 meter, so as to facilitate the operation of the operator; the lower part of the support frame 2 is welded with an iron plate, which is fixed to the ground by expansion bolts (or can be fixed by pre-embedding) to ensure the overall stability of the device.

[0026] In the extruder feeding device of this embodiment, the free roller 3 is mounted on the rotating frame 4, and the rotating frame 4 is rotatably connected to the support frame 2. The rotating frame 4 rotates and drives the free roller 3 to approach the drive roller 1, thereby applying pressure to the rubber material between the two to prevent the rubber material from slipping on the drive roller 1.

[0027] Specifically, the rotating frame 4 is hinged to the support frame 2 via a rotating shaft, allowing the entire rotating frame 4 to swing around the hinge point; in order to achieve stable pressure on the free roller 3, a cylinder 6 is hinged to the top of the support frame 2, and the telescopic rod of the cylinder 6 is hinged to the connecting rod 5 in the middle of the rotating frame 4.

[0028] When the telescopic rod of cylinder 6 extends, it pushes the rotating frame 4 to swing downward, causing the free roller 3 to press against the rubber material on the drive roller 1. The pressure is controlled by cylinder 6, and the pressure is stable and adjustable, which can adapt to rubber materials with different hardness or viscosity, and always provide the best anti-slip pressure.

[0029] Preferably, the rotating frame 4 includes two support rods symmetrically arranged about the free roller 3, the support rods being connected by a connecting rod 5, and the telescopic end of the cylinder 6 being hinged to the connecting rod 5.

[0030] By defining the structure of the rotating frame 4 as two support rods connected by a connecting rod 5, the free roller 3 is ensured to receive balanced force, move smoothly, and not skew. This structure, combined with the pressure application method driven by the cylinder 6, is more controllable and reliable than simply relying on its own weight, and is a key element in achieving precise automated control.

[0031] In the extruder feeding device of this embodiment, the limiting component includes an inner bottom roller 7 and an outer bottom roller 8 arranged parallel to the drive roller 1. The inner bottom roller 7 is located between the drive roller 1 and the outer bottom roller 8. The rubber material enters from below the outer bottom roller 8 between the inner bottom roller 7 and the outer bottom roller 8, and is then conveyed by the drive roller 1.

[0032] Based on the above structure, the conveying path of the rubber material is as follows: it enters from below the outer bottom roller 8, then goes up around the inner bottom roller 7, and then enters between the drive roller 1 and the free roller 3.

[0033] Specifically, by setting two bottom rollers at different distances from the support frame 2, since the rubber storage table is placed horizontally, the angle between the rubber and the plane of the table changes continuously during the conveying process. When the rubber is pulled up from the end of the table away from the feeding device, the angle between it and the plane is small, and the rubber contacts the bottom of the outer bottom roller 8 and is guided into the drive roller 1. When the rubber is pulled up from the end of the table close to the feeding device, the angle between it and the plane is large, and the rubber contacts the top of the inner bottom roller 7 and is guided into the drive roller 1.

[0034] Two bottom rollers are set up to adapt to the guidance of the rubber material at different traction positions, ensuring the guiding effect of the rubber material: the inner bottom roller 7 and the outer bottom roller 8 constitute the vertical constraint of the rubber material, determining the entry angle and lifting path of the rubber material.

[0035] In the extruder feeding device of this embodiment, the limiting component also includes a side roller 9 arranged perpendicular to the drive roller 1. The side roller 9 is located between the inner bottom roller 7 and the outer bottom roller 8. There are two side rollers 9 symmetrically arranged about the support frame 2. The two side rollers 9 are used to limit the rubber material located between the inner bottom roller 7 and the outer bottom roller 8 from both sides.

[0036] The two side rollers 9 form a lateral constraint on the rubber material, and together with the two bottom rollers, they form a "well" shaped channel, keeping the rubber material in a central position during the conveying process. This avoids jamming or wear caused by the rubber material swinging, and effectively prevents the rubber material from shifting to the left or right or falling off when subjected to traction force. It ensures that the rubber material always enters the conveying area along the preset central path, which greatly improves the reliability and stability of the device.

[0037] In the extruder feeding device of this embodiment, an extruder is provided on one side of the support frame 2, and the detection component includes a detection frame 10 disposed between the extruder and the support frame 2. A light curtain for detecting the position of the rubber material is provided between the detection frame 10 and the support frame 2.

[0038] Light curtain detection enables real-time monitoring and automatic adjustment of the rubber supply process. Compared with traditional manual observation, this device avoids production interruptions caused by insufficient or excessive rubber reserves, ensuring continuous rubber supply. This automated control reduces the labor intensity of operators and improves the efficiency of final rubber separation and product consistency by precisely matching the extruder requirements.

[0039] In the extruder feeding device of this embodiment, the light curtain includes a first light curtain 11 and a second light curtain 12 arranged at intervals. The first light curtain 11 is used to detect the highest position of the drooping rubber material, and the second light curtain 12 is used to detect the lowest position of the drooping rubber material.

[0040] Specifically, the first light curtain 11 and the second light curtain 12 are respectively connected to the motor signal to control the start and stop of the motor, or the motor drives the active roller 1 to rotate and drive the conveying speed of the rubber material to adjust the drooping position of the rubber material.

[0041] The light curtains use infrared sensors, and both the upper and lower light curtains are installed on the outlet side of the conveyor. The first light curtain 11 and the second light curtain 12 are used to detect the highest and lowest positions of the drooping rubber material, respectively. The control unit (such as a PLC) is connected to the light curtains and the motor. When the rubber material droops: When the first light curtain 11 and the second light curtain 12 are blocked at the same time, it indicates that there is too much material stored. The control system will send a signal to slow down or stop the motor to prevent the material from accumulating. When only the first light curtain 11 is blocked, while the second light curtain 12 is not blocked, it indicates that the amount of material stored is appropriate and the device maintains the current speed of operation. When neither light curtain is blocked, it indicates a material shortage. The control system will then instruct the motor to accelerate or start, replenishing the adhesive material in a timely manner.

[0042] This detection and control strategy based on dual light curtains enables closed-loop automatic control of the material feeding process. It can dynamically adjust the opening and closing of the conveyor device or the conveying speed to keep the amount of rubber material sagging (i.e., the intermediate storage amount) within a reasonable range. This not only completely avoids the risk of rubber material breakage but also achieves "on-demand feeding," further optimizing energy consumption, reducing equipment idling, and improving the overall automation level of the device.

[0043] Based on the above structural configuration, this application is mainly used for the final rubber separation in the tire manufacturing process, and is particularly suitable for the rubber supply operation of small extruders (such as 60 extruders or 90 extruders), improving efficiency and product quality through automated control.

[0044] The working process of the device in this application is as follows: The device is set up with an east station (the side that releases the rubber material) and a west station (the side that receives the rubber material). Each station is equipped with a drive device and a position sensor. When the tooling car is pushed into the station, the sensor triggers automatic locking, and manual feeding is started; the control unit dynamically adjusts the speed on both sides according to the position of the intermediate storage material (feedback from the detection component) so that the storage material is always kept within the detection range of the light curtain.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "rotation", 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. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations 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 feeding device for an extruder, characterized in that, The device includes a conveying assembly, with a limiting assembly and a detection assembly respectively provided on both sides. The rubber material is limited by the limiting assembly so that it can be driven by the conveying assembly into the detection range of the detection assembly and into the extruder feed port. The detection assembly is used to detect the length of the rubber material conveyed by the conveying assembly to prevent the rubber material from breaking.

2. The extruder feeding device according to claim 1, characterized in that, The conveying assembly includes a drive roller, which is rotatably connected to a support frame for conveying the rubber material. A free roller is provided above the drive roller to prevent the rubber material from slipping.

3. The extruder feeding device according to claim 2, characterized in that, The free roller is mounted on a rotating frame, which is rotatably connected to a support frame. The rotating frame rotates and drives the free roller to approach the drive roller, thereby applying pressure to the rubber material between the two and preventing the rubber material from slipping on the drive roller.

4. The extruder feeding device according to claim 3, characterized in that, The rotating frame includes two support rods symmetrically arranged about the free roller, which are connected by a connecting rod. A cylinder is hinged to the top of the support frame, and the telescopic end of the cylinder is hinged to the connecting rod.

5. The extruder feeding device according to claim 2, characterized in that, The limiting assembly includes an inner bottom roller and an outer bottom roller arranged parallel to the drive roller. The inner bottom roller is located between the drive roller and the outer bottom roller. The rubber material enters from below the outer bottom roller between the inner bottom roller and the outer bottom roller, and is then conveyed by the drive roller.

6. The extruder feeding device according to claim 5, characterized in that, The limiting assembly also includes side rollers arranged perpendicular to the drive roller. The side rollers are located between the inner bottom roller and the outer bottom roller. There are two side rollers symmetrically arranged about the support frame. The two side rollers are used to limit the rubber material located between the inner bottom roller and the outer bottom roller from both sides.

7. The extruder feeding device according to claim 2, characterized in that, An extruder is provided on one side of the support frame, and the detection assembly includes a detection frame disposed between the extruder and the support frame. A light curtain for detecting the position of the rubber material is provided between the detection frame and the support frame.

8. The extruder feeding device according to claim 7, characterized in that, The light curtain includes a first light curtain and a second light curtain arranged at an interval between the upper and lower parts. The first light curtain is used to detect the highest position of the drooping rubber material, and the second light curtain is used to detect the lowest position of the drooping rubber material.

9. The extruder feeding device according to claim 8, characterized in that, The active roller is driven to rotate by a motor fixed on the support frame. The first light curtain and the second light curtain are respectively connected to the motor signal, thereby controlling the conveying speed of the active roller driven by the motor to move the rubber material, so as to adjust the drooping position of the rubber material.

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