A composite rubber preheating mechanism

Abstract

The utility model provides a composite rubber preheating mechanism, which belongs to the technical field of rubber preheating; it comprises a cylinder, a feed pipe is fixedly passed through the surface of the cylinder, and an external heating wire is installed on the inner wall of the cylinder. The utility model provides a spiral conveying rod, an inner cylinder, an internal heating wire, an upper protrusion and a lower protrusion. Before preheating, particles are added into the inner cylinder, and the particles are first heated by the internal heating wire in the inner cylinder, and the particles are surged upward by the spiral conveying rod, and the material falls between the inner cylinder and the outer cylinder. Since the distance between the inner cylinder and the outer cylinder is only five millimeters larger than the particle size, the particles can only pass through the space between the inner cylinder and the cylinder in turn. Therefore, when heating, the inside and outside of the particles are heated at the same time, the heating is more uniform, and the time required for heating is shorter. When the spiral conveying rod drives the circular plate to rotate, the lower protrusion contacts the upper protrusion, which can drive the inner cylinder to move up and down, so as to avoid the particles being blocked between the outer wall of the inner cylinder and the inner wall of the cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber preheating, in particular to a composite rubber preheating mechanism. Background Art

[0002] When the raw material of the extruder is composite rubber particles, the composite rubber particles need to be preheated. During the preheating, the composite rubber particles are added into the barrel, and the internal composite rubber particles are preheated by the electric heating wire on the inner wall of the barrel. After the preheating is completed, the composite rubber particles are passed into the extruder.

[0003] When the composite rubber particles are heated by the cylinder, since the heating wire is located on the inner wall of the cylinder, the temperature of the inner wall of the cylinder is higher, while the temperature inside the cylinder is lower. During preheating, the composite rubber particles in the cylinder are heated unevenly inside and outside, and the required heating time is longer. Therefore, the present application provides a composite rubber preheating mechanism to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a composite rubber preheating mechanism to solve the problem that composite rubber particles in a cylinder are heated unevenly inside and outside during preheating and the required heating time is long.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A composite rubber preheating mechanism comprises a cylinder, a feed pipe is fixedly passed through the surface of the cylinder, an external heating wire is installed on the inner wall of the cylinder, a motor is fixed on the top of the cylinder, the output shaft of the motor movably passes through the top of the cylinder, a spiral conveying rod is fixed on the output end of the motor, an inner cylinder is movably sleeved on the surface of the spiral conveying rod, a circular plate is fixed on the bottom of the spiral conveying rod, the top of the circular plate is fitted with the bottom of the inner cylinder, an inner fixing block is fixed on the surface of the inner cylinder, an external fixing block is fixed on the inner wall of the cylinder, the external fixing block is located below the adjacent internal fixing block, a positioning rod is fixed on the bottom of the internal fixing block, the positioning rod movably passes through the top of the external fixing block, and an internal heating wire is installed on the inner wall of the inner cylinder.

[0007] Preferably, a top ring is fixed on the top of the inner cylinder.

[0008] Preferably, the top opening of the top ring is smaller than the bottom opening.

[0009] Preferably, the outer diameter and inner diameter of the bottom of the top ring are the same as the outer diameter and inner diameter of the top of the inner cylinder.

[0010] Preferably, the circular plate is coaxially arranged with the inner cylinder.

[0011] Preferably, the circular plate is arranged perpendicular to the circular axis of the spiral conveying rod.

[0012] Preferably, the positioning rod is arranged parallel to the inner cylinder.

[0013] Preferably, a limiting block is fixed at the bottom of the positioning rod.

[0014] Preferably, a lower protrusion is fixed on the top of the circular plate, and an upper protrusion is fixed on the bottom of the inner cylinder, and the highest point of the lower protrusion contacts the lowest point of the upper protrusion during the rotation of the circular plate.

[0015] Preferably, the distance between the outer wall of the inner cylinder and the inner wall of the cylinder is greater than the particle size of the composite rubber particles.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, by arranging a spiral conveying rod, an inner cylinder, an internal heating wire, an upper protrusion and a lower protrusion, before preheating, the particles are added to the inner cylinder, and the particles are first heated by the internal heating wire in the inner cylinder, and the particles are surged upward by the spiral conveying rod, and the material falls between the inner cylinder and the outer cylinder. Since the distance between the inner cylinder and the outer cylinder is only five millimeters larger than the particle size, the particles can only pass through the space between the inner cylinder and the cylinder body in turn. Therefore, when heating, the inside and outside of the particles are heated at the same time, the heating is more uniform, and the time required for heating is shorter. In addition, when the spiral conveying rod drives the circular plate to rotate, the lower protrusion contacts the upper protrusion, which can drive the inner cylinder to move up and down, thereby preventing the particles from being blocked between the outer wall of the inner cylinder and the inner wall of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the cylinder of the utility model;

[0021] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 It is a schematic diagram of the structure of the utility model when the upper protrusion is in contact with the lower protrusion.

[0024] [Reference Signs]

[0025] 1. Cylinder; 2. Feed pipe; 3. Inner cylinder; 4. Motor; 5. Screw conveying rod; 6. Round plate; 7. Upper protrusion; 8. Lower protrusion; 9. Top ring; 10. Inner fixing block; 11. Outer fixing block; 12. Positioning rod; 13. Limiting block; 14. External heating wire; 15. Internal heating wire.

[0026] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0027] The following is a detailed description of a composite rubber preheating mechanism provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0028] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0029] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0030] like Figure 1-Figure 5As shown, the embodiment of the utility model provides a composite rubber preheating mechanism, including a barrel 1, a feed pipe 2 is fixedly passed through the surface of the barrel 1, an external heating wire 14 is installed on the inner wall of the barrel 1, a motor 4 is fixed on the top of the barrel 1, the output shaft of the motor 4 movably passes through the top of the barrel 1, a spiral conveying rod 5 is fixed on the output end of the motor 4, an inner barrel 3 is movably sleeved on the surface of the spiral conveying rod 5, a circular plate 6 is fixed on the bottom of the spiral conveying rod 5, the top of the circular plate 6 is in contact with the bottom of the inner barrel 3, an inner fixing block 10 is fixed on the surface of the inner barrel 3, and an external fixing block 10 is fixed on the inner wall of the barrel 1. The fixed block 11, the external fixed block 11 is located below the adjacent internal fixed block 10, a positioning rod 12 is fixed to the bottom of the internal fixed block 10, the positioning rod 12 movably passes through the top of the external fixed block 11, an internal heating wire 15 is installed on the inner wall of the inner cylinder 3, the motor 4 is connected to the external servo controller, and the servo controller controls the forward and reverse rotation of the motor 4, the external heating wire 14 and the internal heating wire 15 are connected to the external controller through wires, and their start and stop and temperature are controlled by the controller, the spiral conveying rod 5 rotates forward, the particles surge upward, the spiral conveying rod 5 reverses, and the particles move downward.

[0031] like Figure 2 As shown, in this embodiment, a top ring 9 is fixed on the top of the inner cylinder 3, and the top ring 9 can guide the particles to make the particles more stable during movement.

[0032] like Figure 2 As shown, in this embodiment, the top opening of the top ring 9 is smaller than the bottom opening, so that the particles enter between the inner cylinder 3 and the cylinder body 1 along the outer inclined surface of the top ring 9.

[0033] like Figure 2 As shown, in this embodiment, the outer diameter and inner diameter of the bottom of the top ring 9 are the same as the outer diameter and inner diameter of the top of the inner tube 3, so that the connection between the top ring 9 and the inner tube 3 is smooth to avoid particles from clogging at the connection.

[0034] like Figure 2 As shown, in this embodiment, the circular plate 6 is coaxially arranged with the inner cylinder 3, and the circular plate 6 is attached to the bottom of the inner cylinder 3. When the circular plate 6 supports the inner cylinder 3, the force is more uniform.

[0035] like Figure 2 As shown, in this embodiment, the circular plate 6 is vertically arranged to the circular axis of the spiral conveying rod 5, so that the spiral conveying rod 5 drives the circular plate 6 to rotate more stably.

[0036] like Figure 3 As shown, in this embodiment, the positioning rod 12 is arranged parallel to the inner cylinder 3. When the inner cylinder 3 moves up and down, the positioning rod 12 guides the inner cylinder 3 in the up and down direction, so that the up and down movement of the inner cylinder 3 is more stable, and the inner cylinder 3 can also be prevented from rotating.

[0037] like Figure 3As shown, in this embodiment, a limiting block 13 is fixed at the bottom of the positioning rod 12, making the whole safer during operation.

[0038] like Figure 5 As shown, in this embodiment, a lower protrusion 8 is fixed on the top of the circular plate 6, and an upper protrusion 7 is fixed on the bottom of the inner tube 3. When the circular plate 6 rotates, the highest point of the lower protrusion 8 contacts the lowest point of the upper protrusion 7. When the circular plate 6 drives the lower protrusion 8 to rotate, after the lower protrusion 8 contacts the upper protrusion 7, the lower protrusion 8 will drive the upper protrusion 7 to move upward, and the upper protrusion 7 will drive the inner tube 3 to move upward to avoid particle blockage.

[0039] like Figure 2 As shown, in this embodiment, the distance between the outer wall of the inner cylinder 3 and the inner wall of the cylinder 1 is greater than the particle size of the composite rubber particles, and the distance between the outer wall of the inner cylinder 3 and the inner wall of the cylinder 1 is five millimeters larger than the particle diameter, so that the particles can pass through the gap between the two in turn, making the particles heated more evenly.

[0040] Working principle: the particles are fed into the inner cylinder 3 through the feed pipe 2. When feeding, the motor 4 is started in reverse, and the motor 4 drives the screw conveying rod 5 to rotate in reverse, so that the particles enter the bottom of the cylinder 1. When the inner cylinder 3 is full, the motor 4 is stopped. At this time, the motor 4 is started in the forward direction, and the internal heating wire 15 and the external heating wire 14 are started. The inner cylinder 3 is heated by the internal heating wire 15, and the particles in the cylinder 1 are heated by heat transfer. At this time, the motor 4 drives the screw conveying rod 5 to rotate forward, and the screw conveying rod 5 drives the particles to surge upward, and the particles slide from the top ring 9 to the space between the outer wall of the inner cylinder 3 and the inner wall of the cylinder 1. And the particles fall one by one. In this way, the particles are heated one by one. The spiral conveying rod 5 is rotating, and the spiral conveying rod 5 drives the circular plate 6 to rotate. The circular plate 6 drives the lower protrusion 8 to rotate. When the lower protrusion 8 contacts the upper protrusion 7, the lower protrusion 8 will drive the upper protrusion 7 to move upward, and the upper protrusion 7 drives the inner cylinder 3 to move upward for a distance. The inner cylinder 3 moves up and down to avoid particle blockage. When the inner cylinder 3 moves up and down, the inner fixed block 10 drives the positioning rod 12 to slide up and down in the outer fixed block 11 to avoid the inner cylinder 3 from rotating, until the particles in the inner cylinder 3 are preheated, and then particles are added to the inner cylinder 3 again.

[0041] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, the specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A composite rubber preheating mechanism, comprising a barrel (1), a feed pipe (2) fixedly passing through the surface of the barrel (1), an external heating wire (14) installed on the inner wall of the barrel (1), characterized in that: A motor (4) is fixed to the top of the cylinder (1), an output shaft of the motor (4) movably passes through the top of the cylinder (1), a spiral conveying rod (5) is fixed to the output end of the motor (4), an inner cylinder (3) is movably sleeved on the surface of the spiral conveying rod (5), the bottom of the spiral conveying rod (5) movably passes through the bottom of the inner cylinder (3) and is fixed with a circular plate (6), the top of the circular plate (6) is in contact with the bottom of the inner cylinder (3), an inner fixing block (10) is fixed to the surface of the inner cylinder (3), an outer fixing block (11) is fixed to the inner wall of the cylinder (1), the outer fixing block (11) is located below the adjacent inner fixing block (10), a positioning rod (12) is fixed to the bottom of the inner fixing block (10), the positioning rod (12) movably passes through the top of the outer fixing block (11), an inner heating wire (15) is installed on the inner wall of the inner cylinder (3), and the distance between the outer wall of the inner cylinder (3) and the inner wall of the cylinder (1) is greater than the particle size of the composite rubber particles.

2. The composite rubber preheating mechanism according to claim 1, characterized in that: A top ring (9) is fixed to the top of the inner cylinder (3).

3. The composite rubber preheating mechanism according to claim 2, characterized in that: The top opening of the top ring (9) is smaller than the bottom opening.

4. The composite rubber preheating mechanism according to claim 3, characterized in that: The outer diameter and inner diameter of the bottom of the top ring (9) are the same as the outer diameter and inner diameter of the top of the inner cylinder (3).

5. The composite rubber preheating mechanism according to claim 1, characterized in that: The circular plate (6) is coaxially arranged with the inner cylinder (3).

6. The composite rubber preheating mechanism according to claim 1, characterized in that: The circular plate (6) is arranged perpendicularly to the circular axis of the spiral conveying rod (5).

7. The composite rubber preheating mechanism according to claim 1, characterized in that: The positioning rod (12) is arranged parallel to the inner cylinder (3).

8. The composite rubber preheating mechanism according to claim 1, characterized in that: A limiting block (13) is fixed at the bottom of the positioning rod (12).

9. The composite rubber preheating mechanism according to claim 1, characterized in that: A lower protrusion (8) is fixed on the top of the circular plate (6), and an upper protrusion (7) is fixed on the bottom of the inner cylinder (3). When the circular plate (6) rotates, the highest point of the lower protrusion (8) contacts the lowest point of the upper protrusion (7).

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