A raw rubber conveying device

Abstract

The utility model discloses a raw rubber transmission device, include: transmission support, install transmission motor on the transmission support, the both ends of transmission support are respectively turned to install driving wheel and driven wheel, the output shaft of transmission motor is connected with driving wheel through the shaft coupling, is connected through transmission belt between driving wheel and driven wheel, push material structure, the push material structure includes mounting bracket, the both sides of transmission support are all fixedly installed with support, the both sides of mounting bracket are fixedly connected with support through a plurality of vertical setting's stand respectively, install the moving mechanism for driving the moving of push -plate on the mounting bracket, shaping structure, shaping structure installs on transmission support. This raw rubber transmission device can extrude shaping to raw rubber, and has the advantages of high stability and reliability, high degree of automation.

Description

Technical Field

[0001] This utility model relates to the field of rubber production technology, and in particular to a raw rubber conveying device. Background Technology

[0002] Raw rubber, or uncured rubber raw material, is essentially a high-molecular elastomer. At room temperature, the surface of raw rubber is often sticky. Under external force, it can undergo significant changes in shape and is difficult to quickly return to its original state after the external force is removed. This physical characteristic is present throughout the entire raw rubber processing process.

[0003] In the industrial production of rubber products, precise batching of raw rubber is crucial for ensuring the uniformity of product performance. Typically, the production system first weighs the raw rubber quantitatively according to the formula requirements, ensuring that the quality error of each batch is controlled within the allowable range of the process. After weighing, the raw rubber is transferred to a kneader via a specific conveyor system. The kneader then mixes and plasticizes the raw rubber with carbon black, vulcanizing agents, accelerators, and other auxiliary materials under high temperature and pressure to form a homogeneous rubber matrix, laying the foundation for subsequent calendering, vulcanization, and other processes. In this process, the conveyor system, as the key link between the weighing process and the kneader, directly affects production efficiency and process continuity due to its operational stability.

[0004] Existing raw rubber conveying devices are mostly conveyor belts, whose core function is only to achieve "point-to-point" displacement of raw rubber from the weighing station to the kneader inlet, without being specifically designed for the high viscosity and easily deformable characteristics of raw rubber. In actual conveying, raw rubber is subjected to external forces such as its own weight, vibration in the conveying path, and equipment friction, which easily cause irregular deformation. For example, blocky raw rubber may be squeezed into flat or other irregular shapes, resulting in a significant deviation between the actual shape of the raw rubber when it arrives at the kneader inlet and the preset feeding shape. The kneader inlet has a fixed-size channel. When the deformed raw rubber arrives at the inlet, its irregular shape can easily interfere with the inlet edge. For example, excessively flat raw rubber may get stuck at the edge because its lateral dimensions exceed the inlet width. This interference makes it difficult for the raw rubber to enter the kneader's mixing chamber smoothly, and it will accumulate at the inlet to form a blockage. Once a blockage occurs, the operator needs to stop the machine and clean it manually. This not only interrupts the continuous production process and reduces production efficiency, but the raw rubber that remains during the blockage may also age prematurely due to changes in ambient temperature, affecting the mixing quality of subsequent rubber materials and causing significant economic losses and quality risks to production. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a raw rubber transfer device that can extrude and shape raw rubber, has high stability and reliability, and a high degree of automation.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A raw rubber transfer device, comprising:

[0008] A transmission bracket is provided, on which a transmission motor is mounted. At each end of the transmission bracket, a drive wheel and a driven wheel are respectively mounted. The output shaft of the transmission motor is connected to the drive wheel via a coupling, and the drive wheel and the driven wheel are connected by a transmission belt.

[0009] The material pushing structure includes a mounting frame, and supports are fixedly installed on both sides of the transmission bracket. The two sides of the mounting frame are fixedly connected to the supports through several vertically arranged columns. A moving mechanism for driving the push plate to move is installed on the mounting frame.

[0010] A shaped structure is mounted on a transmission support.

[0011] In the above technical solution, a basic conveying system is constructed using a conveyor support, a conveyor motor, a drive wheel, a driven wheel, and a conveyor belt to achieve automated conveying of raw rubber. This is based on the current belt conveyor structure, but with the addition of a pushing structure and a shaping structure. Specifically, the weighed raw rubber is placed on the conveyor belt, which moves the rubber. The pushing speed of the pushing structure is the same as the conveyor belt's speed, propelling the rubber forward via a pusher plate. During this movement, the shaping structure compresses and shapes the raw rubber. Because this compression and shaping is necessary during movement, the pushing structure is required to propel the rubber forward, preventing it from stagnating and affecting the conveying process. Once shaped, the raw rubber reaches the kneader inlet and can then enter the kneader.

[0012] Preferably, the moving structure includes:

[0013] The screw has lugs fixedly mounted at both ends of the mounting bracket, and both ends of the screw are rotatably connected to the lugs. Nuts are threaded onto the screw.

[0014] A geared motor, wherein the output shaft of the geared motor is fixedly connected to one end of a screw, and the geared motor is fixedly mounted on a mounting bracket;

[0015] A lifting plate is fixedly connected to the lower end of a nut block, and the lifting plate is connected to a push plate via a lifting mechanism.

[0016] Preferably, two horizontal guide rods are fixedly installed at the lower end of the mounting bracket, and horizontal guide blocks are slidably fitted on the horizontal guide rods. The lower end of the horizontal guide blocks is fixedly connected to the lifting plate.

[0017] Preferably, the lifting mechanism includes an electric cylinder fixedly mounted on the lifting plate, a connecting block fixedly mounted on the upper end of the push plate, and the telescopic rod of the electric cylinder passing through the lifting plate and fixedly connected to the connecting block.

[0018] Preferably, two sliding sleeves are fixed on the lifting plate, and a vertical guide rod is slidably fitted inside the sliding sleeve. A limit block is fixed at the upper end of the vertical guide rod, and the lower end of the vertical guide rod is fixedly connected to the push plate.

[0019] Preferably, the shaping structure includes two symmetrically arranged shaping mechanisms. Each shaping mechanism includes a cylinder seat fixedly mounted on a support, and a hydraulic cylinder is fixedly mounted on the cylinder seat. The cylinder rod of the hydraulic cylinder is fixedly connected to the shaping plate, and the shaping plates of the two shaping mechanisms are arranged facing each other.

[0020] Preferably, the ends of both shaping plates near the feeding end of the conveyor belt are bent outwards.

[0021] In summary, this raw rubber conveying device has the advantages of being able to extrude and shape raw rubber, having high stability and reliability, and a high degree of automation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a raw rubber transfer device according to the present invention.

[0023] Figure 2 for Figure 1 A schematic diagram showing the state of the push plate after it has moved.

[0024] Figure 3 This is a schematic diagram of the raw rubber conveying device of this utility model after the pusher structure has been removed.

[0025] Figure 4 This is a schematic diagram of the material pushing structure. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention 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 limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0027] like Figure 1-4 As shown, a raw rubber transfer device includes:

[0028] A transmission bracket 1 is provided, on which a transmission motor 2 is mounted. At both ends of the transmission bracket, a drive wheel and a driven wheel are respectively mounted. The output shaft of the transmission motor is connected to the drive wheel via a coupling. The drive wheel and the driven wheel are connected by a transmission belt 3.

[0029] The material pushing structure includes a mounting frame 4, and supports 5 are fixedly installed on both sides of the transmission bracket. The two sides of the mounting frame are fixedly connected to the supports through several vertically arranged columns 6. A moving mechanism for driving the push plate 7 to move is installed on the mounting frame.

[0030] A shaped structure is mounted on a transmission support.

[0031] In the above technical solution, a basic conveying system is constructed using a conveyor support, a conveyor motor, a drive wheel, a driven wheel, and a conveyor belt to achieve automated conveying of raw rubber. This is based on the current belt conveyor structure, but with the addition of a pushing structure and a shaping structure. Specifically, the weighed raw rubber is placed on the conveyor belt, which moves the rubber. The pushing speed of the pushing structure is the same as the conveyor belt's speed, propelling the rubber forward via a pusher plate. During this movement, the shaping structure compresses and shapes the raw rubber. Because this compression and shaping is necessary during movement, the pushing structure is required to propel the rubber forward, preventing it from stagnating and affecting the conveying process. Once shaped, the raw rubber reaches the kneader inlet and can then enter the kneader.

[0032] In implementation, the moving structure includes:

[0033] The screw 8 has lugs fixedly installed at both ends of the mounting bracket, and the two ends of the screw are rotatably connected to the lugs respectively. A nut 9 is threaded onto the screw.

[0034] A geared motor 10, wherein the output shaft of the geared motor is fixedly connected to one end of a screw, and the geared motor is fixedly mounted on a mounting bracket;

[0035] The lifting plate 11 is fixedly connected to the lower end of the nut block, and the lifting plate is connected to the push plate through a lifting mechanism.

[0036] In the above technical solution, the moving structure uses a geared motor to drive the screw to rotate, which in turn drives the nut to move, thereby moving the lifting plate. The lifting plate then drives the push plate to move. The height of the push plate is adjusted in conjunction with the lifting mechanism, so that the push plate can avoid obstructing the raw rubber while pushing the raw rubber to move.

[0037] Specifically, the upper end of the nut is flat, and the upper end of the nut slides and fits against the mounting bracket to prevent the nut from rotating.

[0038] In implementation, two horizontal guide rods 12 are fixedly installed at the lower end of the mounting frame. A horizontal guide block is slidably fitted onto each horizontal guide rod, and the lower end of the horizontal guide block is fixedly connected to the lifting plate. The sliding fit between the horizontal guide rods and the horizontal guide block provides guiding constraints for the lateral movement of the lifting plate, preventing swaying or displacement of the lifting plate due to uneven force during screw drive, thus improving the accuracy and reliability of the material pushing action.

[0039] In implementation, the lifting mechanism includes an electric cylinder 13 fixedly mounted on the lifting plate, a connecting block 14 fixedly mounted on the upper end of the push plate, and the telescopic rod of the electric cylinder passing through the lifting plate and fixedly connected to the connecting block. The electric cylinder directly drives the push plate to lift, resulting in a simple structure and rapid response.

[0040] In implementation, two sliding sleeves are fixed on the lifting plate, and a vertical guide rod 15 is slidably fitted inside the sliding sleeves. A limit block is fixed to the upper end of the vertical guide rod, and the lower end of the vertical guide rod is fixedly connected to the push plate. The cooperation between the sliding sleeves and the vertical guide rod provides vertical guidance for the lifting and lowering movement of the push plate, preventing the push plate from tilting or deviating during the lifting and lowering process.

[0041] In implementation, the shaping structure includes two symmetrically arranged shaping mechanisms. Each shaping mechanism includes a cylinder seat 16 fixedly mounted on a support, and a hydraulic cylinder 17 fixedly mounted on the cylinder seat. The cylinder rod of the hydraulic cylinder is fixedly connected to a shaping plate 18, and the shaping plates of the two shaping mechanisms are arranged facing each other. The two symmetrically arranged shaping mechanisms drive the shaping plates to move relative to each other through the hydraulic cylinder, which can squeeze and shape the raw rubber on both sides of the conveyor belt, adjust the deformed raw rubber to a uniform width, avoid the raw rubber from being blocked at the kneader inlet due to irregular shape, and ensure smooth feeding.

[0042] During implementation, the ends of both shaping plates near the feeding end of the conveyor belt are bent outwards. The outward bending design of the shaping plate ends forms a guiding structure, which facilitates the smooth sliding of raw rubber between the two shaping plates when it enters the shaping area. This reduces collisions or jamming between the raw rubber and the ends of the shaping plates, improves the smoothness of the shaping process, and reduces the additional deformation of the raw rubber caused by jamming.

[0043] Specifically, a Teflon coating is applied to the surfaces of the conveyor belt, the shaping plate, and the push plate to prevent the raw rubber from sticking together.

[0044] Of course, this technical solution also includes a positioning detection component 21 and a discharge detection component 22. The positioning detection component is mounted on the transmission support and close to the forming plate, while the discharge detection component is located at the discharge end of the transmission support. Both the positioning detection component and the discharge detection component include an infrared transmitter and an infrared receiver positioned opposite each other, forming an infrared detection beam that spans the transmission path of the transmission belt. The detection of the raw rubber is achieved by controlling the on / off state of the beam. The pusher plate can move to the end of the positioning detection component away from the discharge detection component. When the raw rubber is in place, the pusher plate is located behind the raw rubber to facilitate its movement.

[0045] principle:

[0046] The raw rubber conveying device disclosed in this technical solution uses a PLC controller as the core control unit to achieve fully automated operation of the entire process, as detailed below:

[0047] The PLC controller first starts the transmission motor, which drives the transmission belt to rotate through the drive wheel and driven wheel. The weighed raw rubber is placed on the transmission belt. The position of the raw rubber is detected by the position detection component. When the raw rubber blocks the infrared detection beam of the position detection component, the raw rubber is in position. At this time, the PLC controller controls the geared motor to drive the screw to rotate, which drives the push plate to move through the nut. The push plate moves to the back of the raw rubber. The electric cylinder drives the push plate to descend until the push plate is directly opposite the raw rubber. At this time, the push plate is located between the two shaping plates.

[0048] Afterwards, the PLC controller controls the geared motor to drive the screw to rotate in the opposite direction. The screw drives the push plate to move at the same speed as the conveyor belt. At this time, the PLC controller controls the hydraulic cylinders on both sides to push the shaping plate to squeeze and shape the raw rubber. During the shaping process, the push plate continuously pushes the raw rubber to avoid stagnation. The Teflon coating on the surface of the conveyor belt, shaping plate and push plate prevents the raw rubber from sticking together.

[0049] When the raw rubber is detected by the feeding detection component, that is, when the raw rubber blocks the infrared detection beam of the feeding detection component, the raw rubber falls from the feeding end of the conveyor belt into the kneader. The PLC controller controls all electrical components to reset, waiting for the next pushing cycle.

[0050] The PLC controller changes the flow direction of hydraulic oil by controlling the on / off state of the solenoid directional valve, thereby controlling the extension and retraction of the hydraulic cylinder, which is the control method for existing hydraulic control systems.

[0051] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A raw rubber transfer device, characterized in that, include: A transmission bracket (1) is provided, on which a transmission motor (2) is installed. The two ends of the transmission bracket (1) are respectively equipped with a drive wheel and a driven wheel. The output shaft of the transmission motor (2) is connected to the drive wheel through a coupling. The drive wheel and the driven wheel are connected by a transmission belt (3). The material pushing structure includes a mounting frame (4), and supports (5) are fixedly installed on both sides of the transmission bracket (1). The two sides of the mounting frame (4) are fixedly connected to the supports (5) through several vertically arranged columns (6); a moving mechanism for driving the push plate (7) to move is installed on the mounting frame (4). A shaped structure is mounted on a transmission support (1).

2. The raw rubber transfer device according to claim 1, characterized in that, The movable structure includes: The screw (8) has lugs fixedly installed at both ends of the mounting bracket (4), and the two ends of the screw (8) are rotatably connected to the lugs respectively. A nut (9) is threaded onto the screw (8). A geared motor (10) is provided, wherein the output shaft of the geared motor (10) is fixedly connected to one end of the screw (8), and the geared motor (10) is fixedly mounted on the mounting bracket (4); The lifting plate (11) is fixedly connected to the lower end of the nut block (9), and the lifting plate (11) is connected to the push plate (7) through the lifting mechanism.

3. The raw rubber transfer device according to claim 2, characterized in that, Two horizontal guide rods (12) are fixedly installed at the lower end of the mounting bracket (4). A horizontal guide block is slidably fitted on the horizontal guide rod (12). The lower end of the horizontal guide block is fixedly connected to the lifting plate (11).

4. The raw rubber transfer device according to claim 2, characterized in that, The lifting mechanism includes an electric cylinder (13) fixedly installed on the lifting plate (11), and a connecting block (14) is fixedly installed on the upper end of the push plate (7). The telescopic rod of the electric cylinder (13) passes through the lifting plate (11) and is fixedly connected to the connecting block (14).

5. A raw rubber transfer device according to claim 4, characterized in that, Two sliding sleeves are fixed on the lifting plate. A vertical guide rod (15) is slidably fitted inside the sliding sleeve. A limit block is fixed at the upper end of the vertical guide rod (15), and the lower end of the vertical guide rod is fixedly connected to the push plate (7).

6. The raw rubber transfer device according to claim 1, characterized in that, The shaping structure includes two symmetrically arranged shaping mechanisms. Each shaping mechanism includes a cylinder seat (16) fixedly installed on a support (5). A hydraulic cylinder (17) is fixedly installed on the cylinder seat (16). The cylinder rod of the hydraulic cylinder (17) is fixedly connected to the shaping plate (18). The shaping plates (18) of the two shaping mechanisms are arranged opposite each other.

7. A raw rubber transfer device according to claim 6, characterized in that, The ends of the two shaping plates (18) near the feeding end of the conveyor belt (3) are both bent outward.

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